1. The preparation process of the tank body of the mixer truck is characterized by comprising the following process steps:

finishing the blanking of the part plates required by the tank body, wherein the part plates are divided into a conical section and a straight cylinder body, the conical section comprises the blanking of a fan-shaped plate of a front cone and a rear cone, and the straight cylinder body is the blanking of a rectangular plate;

the rectangular plates are welded to finish the integral forming of the straight cylinder;

respectively welding the sector plates of the front cone and the rear cone in a splicing manner; respectively forming a front cone and a rear cone into cone section cylinders;

pre-positioning and molding a front cone blade and a rear cone blade into cone-section blades respectively, and pre-positioning and molding a straight-barrel blade;

sleeving the conical section cylinder body and the conical section blades, and fixing by spot welding to form a conical section tank body which comprises a front conical section tank body and a rear conical section tank body;

fully welding the blades on the inner side of the conical section tank body with the wall of the tank;

coating the straight-section cylinder body with straight-section blades, assembling and welding to form a straight-section tank body;

fully welding the blades on the inner side of the straight tank body with the wall of the cylinder body;

the front end and the rear end of the straight section tank body are respectively butted with the front conical section tank body and the rear conical section tank body, and the straight section tank body and the rear conical section tank body are welded in an assembling mode to complete the preparation of the agitating lorry tank body.

2. The process for preparing the tank body of the mixer truck according to claim 1, wherein the process comprises the following steps: and the front cone section tank body and the rear cone section tank body are respectively welded with a front cone seal head and a rear cone roller way.

3. The process for preparing the tank body of the mixer truck as claimed in claim 1 or 2, wherein: the tank body of the mixer truck is also provided with a transition cone, and the preparation process of the transition cone is the same as that of the front cone and the rear cone.

4. The process for preparing the tank body of the mixer truck as claimed in claim 1 or 2, wherein: and inspecting the prepared tank body of the stirring truck, and performing repair welding on the welding line which does not meet the requirements.

5. The process for preparing the tank body of the mixer truck as claimed in claim 1 or 2, wherein: all welding processes are performed by automatic welding equipment.

Background

Concrete mixers (concrete mixers) are specialized trucks used to transport concrete for construction; due to its shape, it is also commonly referred to as a vivipara. Cylindrical mixing tanks are arranged on the trucks to carry mixed concrete, and the mixing tanks can be kept to rotate all the time in the transportation process to ensure that the carried concrete cannot be solidified, and are the most important part of the mixing truck. The stirring tank is composed of a cylinder body and blades in the cylinder body, the structural form of the stirring tank body is generally divided into a front conical cylinder body, a straight section cylinder body and a rear conical cylinder body, and transition conical cylinder bodies are also arranged in the individual model tank bodies. The preparation of the tank body of the mixer truck in the field of special vehicle production at present mainly adopts the following technical processes:

1. cutting the raw material plate by using blanking equipment to complete blanking of the part plate required by the tank body;

2. splicing the sector plates and the straight plates required by the cylinder by the part plates through a single-weld seam welding plate welder to form plates to be molded;

3. rolling the plate to be formed into a corresponding conical cylinder and a long straight cylinder by a horizontal plate rolling machine, completing welding of a closed welding line of the cylinders after rolling and forming, and returning to the plate rolling machine for rounding correction after welding;

4. after the barrel of each section is formed, workers firstly install the barrel of each section into a specific tool, then draw tracks and positions of formed blades and other accessories according to the inner side of the barrel, perform assembly welding according to a certain sequence, and connect through the specific tool of the barrel of each section to realize the assembly and welding of the barrel of the tank body. And then the preparation of the tank body of the mixer truck is completed.

The whole tank body preparation process needs the work of blanking of a large amount of raw materials, assembling and splicing of part plates and transferring of workpieces, and the consistency and quality precision requirements of products cannot be guaranteed due to the fact that a large amount of manual operation is needed in the current production process. And a large amount of manual work, the operational environment is abominable, intensity of labour is big, and these factors have influenced the promotion of throughput and product quality.

Disclosure of Invention

The invention aims to provide a preparation process of a tank body of a mixer truck, which can greatly improve the production environment, reduce the manual operation intensity, ensure the product consistency and the quality precision requirement of the tank body of the mixer truck, have wide market space and solve the problems in the prior art.

The technical scheme of the invention is as follows:

a preparation process of a tank body of a mixer truck comprises the following process steps:

finishing the blanking of the part plates required by the tank body, wherein the part plates are divided into a conical section and a straight cylinder body, the conical section comprises the blanking of a fan-shaped plate of a front cone and a rear cone, and the straight cylinder body is the blanking of a rectangular plate;

the rectangular plates are welded to finish the integral forming of the straight cylinder;

respectively welding the sector plates of the front cone and the rear cone in a splicing manner; respectively forming a front cone and a rear cone into cone section cylinders;

pre-positioning and molding a front cone blade and a rear cone blade into cone-section blades respectively, and pre-positioning and molding a straight-barrel blade;

sleeving the conical section cylinder body and the conical section blades, and fixing by spot welding to form a conical section tank body which comprises a front conical section tank body and a rear conical section tank body;

fully welding the blades on the inner side of the conical section tank body with the wall of the tank;

coating the straight-section cylinder body with straight-section blades, assembling and welding to form a straight-section tank body;

fully welding the blades on the inner side of the straight tank body with the wall of the cylinder body;

the front end and the rear end of the straight section tank body are respectively butted with the front conical section tank body and the rear conical section tank body, and the straight section tank body and the rear conical section tank body are welded in an assembling mode to complete the preparation of the agitating lorry tank body.

And the front cone section tank body and the rear cone section tank body are respectively welded with a front cone seal head and a rear cone roller way.

If the tank body of the mixer truck is also provided with a transition cone, the preparation process is the same as that of the front cone and the rear cone.

And inspecting the prepared tank body of the stirring truck, and performing repair welding on the welding line which does not meet the requirements.

All welding processes of the invention are carried out by automatic welding equipment.

The innovation points of the invention are as follows: in the prior art, a cylinder body is manufactured firstly, and then blades are welded in the cylinder body in an external and internal operation sequence. The invention is to assemble and mold the blades in advance, then to sleeve the cylinder outside, to weld and mold, and to operate in sequence from inside to outside.

The invention has the beneficial effects that: the tank body preparation process is planned according to a unitized production concept, the tank body output of the mixer truck from raw materials to the tank body is ensured, a large number of automatic production equipment are adopted to be connected in order, and compared with the process technology adopted by the existing mixer truck tank body production, the production environment can be greatly improved, the manual operation intensity is reduced, the product consistency and the quality precision requirement of the mixer truck tank body are ensured, and the market space is wide.

Drawings

FIG. 1 is a schematic diagram of a welding unit for a tapered segment jointed board according to an embodiment of the present invention;

FIG. 2 is a schematic view of a conical section cylinder forming unit according to an embodiment of the present invention;

FIG. 3 is a schematic view of a conical blade pairing and nesting unit according to an embodiment of the invention;

FIG. 4 is a schematic view of a full-length welding unit for a conical helical blade according to an embodiment of the present invention;

FIG. 5 is a schematic view of a straight section can body preparation unit according to an embodiment of the present invention;

FIG. 6 is a schematic view of the pre-positioning and forming of a straight barrel blade according to an embodiment of the present invention;

FIG. 7 is a schematic view of a full-length welding unit for straight helical blades according to an embodiment of the present invention;

in the figure: a plate feeding system 1, a group welding device 2, a multi-handpiece jointed plate welding system 3, an automatic conveying system 4, a sector plate turning device 5, a sector plate blanking device 6, a rolling feeding device 7, a barrel horizontal numerical control plate rolling system 8, a barrel discharging transfer device 9, a barrel inner longitudinal seam welding system 10, a barrel angle adjusting transfer roller frame 11, a barrel outer longitudinal seam welding system 12, a barrel vertical turning device 13, a barrel transfer device 14, a barrel transfer RGV (red, green and blue) vehicle 15, a barrel nesting transfer device 16, a blade group assembly tool I17, a demoulding lifting displacement device 18, a tank body transfer KBK19, a tank body transfer RGV vehicle 20, a tank body rotating device 21, a blade full-welding system 22, a tank body vertical turning device 23, a plate feeding system II 24, a plate conveying and positioning system 25, a straight section welding system 26, a 90-degree turning vertical conveying system 27, The device comprises a cylinder vertical type numerical control plate rolling system 28, a circulating hoisting and transferring system 29, a blade assembling tool II 30, a tool positioning horizontal position changing device 31, a blade automatic welding system 32, a demoulding lifting position changing device 33, a tank horizontal lifting and transferring device 34, a tank laying and overturning device 35, a tank transferring RGV primary and secondary vehicle 36, a tank rotating device 37, a blade full-welding system 38, a tank longitudinal seam welding system 39 and a tank vertical overturning device 40.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings.

A preparation process of a tank body of a mixer truck comprises the following process steps:

finishing the blanking of the part plates required by the tank body, wherein the part plates are divided into a conical section and a straight cylinder body, the conical section comprises the blanking of a fan-shaped plate of a front cone and a rear cone, and the straight cylinder body is the blanking of a rectangular plate;

the rectangular plates are welded to finish the integral forming of the straight cylinder;

respectively welding the sector plates of the front cone and the rear cone in a splicing manner; respectively forming a front cone and a rear cone into cone section cylinders;

pre-positioning and molding a front cone blade and a rear cone blade into cone-section blades respectively, and pre-positioning and molding a straight-barrel blade;

sleeving the conical section cylinder body and the conical section blades, and fixing by spot welding to form a conical section tank body which comprises a front conical section tank body and a rear conical section tank body;

fully welding the blades on the inner side of the conical section tank body with the wall of the tank;

coating the straight-section cylinder body with straight-section blades, assembling and welding to form a straight-section tank body;

fully welding the blades on the inner side of the straight tank body with the wall of the cylinder body;

the front end and the rear end of the straight section tank body are respectively butted with the front conical section tank body and the rear conical section tank body, and the straight section tank body and the rear conical section tank body are welded in an assembling mode to complete the preparation of the agitating lorry tank body.

And the front cone section tank body and the rear cone section tank body are respectively welded with a front cone seal head and a rear cone roller way.

If the tank body of the mixer truck is also provided with a transition cone, the preparation process is the same as that of the front cone and the rear cone.

And inspecting the prepared tank body of the stirring truck, and performing repair welding on the welding line which does not meet the requirements.

All welding processes of the invention are carried out by automatic welding equipment.

In an embodiment, an apparatus implementing the invention comprises: a-a raw material blanking unit; b, a conical section jointed board welding unit; c, a conical section cylinder forming unit; d, a conical section blade assembly and nesting unit; e-full welding unit for the spiral blade of the conical section; f-straight section tank body preparation unit; g, a straight-section helical blade full-length welding unit; h-tank butt-joint assembly and welding unit. The material transfer in each unit and the material transfer among the units are organically connected by an automatic logistics system to realize the automatic material transfer function. The automatic logistics system comprises but is not limited to a lifting conveying device, a roller conveying system, an AGV conveying system, an RGV conveying system, an air transfer system, a KBK hoisting system and a telescopic fork.

A-raw material blanking unit, which is a common blanking device known in the field, and performs blanking according to the size of the tank body of the stirring truck prepared as required.

The B-conical section jointed board welding unit mainly comprises a board feeding system 1, a group welding device 2, a multi-handpiece jointed board welding system 3, an automatic conveying system 4, a sector plate overturning device 5 and a sector plate blanking device 6. And assembling and welding the sector plates.

The C-conical section cylinder forming unit mainly comprises a rolling feeding device 7, a cylinder horizontal type numerical control plate rolling system 8, a cylinder discharging and transferring device 9, a cylinder inner longitudinal seam welding system 10, a cylinder angle adjusting and transferring roller frame 11, a cylinder outer longitudinal seam welding system 12, a cylinder vertical overturning device 13 and a cylinder transferring device 14. And respectively forming the front cone and the rear cone, and welding the longitudinal seam outside the cylinder into a cone section cylinder.

The D-cone blade pairing and nesting unit mainly comprises a cylinder body transferring RGV vehicle 15, a cylinder body nesting transfer device 16, a blade pairing tool I17 and a demoulding lifting displacement device 18. The method comprises the following steps of (1) respectively positioning and molding a front cone blade and a rear cone blade on a blade assembly tool I17 in advance to form a cone section blade, sleeving a cone section cylinder body and the cone section blade, and fixing the cone section cylinder body and the cone section blade in a spot welding manner to form a cone section tank body which comprises a front cone section tank body and a rear cone section tank body; and finally, separating and demolding the first blade assembling tool 17 from the conical section tank body.

The full-welding unit for the E-conical section helical blades mainly comprises a tank body transfer KBK19, a tank body transfer RGV vehicle 20, a tank body rotating device 21, a blade full-welding system 22 and a tank body vertical turnover device 23. And fully welding the blades on the inner side of the conical section tank body and the cylinder wall.

An F-straight section tank body preparation unit mainly comprises a plate feeding system II 24, a plate conveying and positioning system 25, a straight section jointed plate welding system 26, a plate 90-degree overturning vertical conveying system 27, a barrel vertical numerical control plate rolling system 28, a circulating hoisting and transferring system 29, a blade assembling tool II 30, a tool positioning horizontal position changing device 31, a blade automatic welding system 32, a demoulding lifting position changing device 33, a tank body horizontal lifting and transferring device 34 and a tank body laying and overturning device 35. Completing the welding of the rectangular plate of the straight cylinder; pre-positioning and molding the straight barrel blade; and (4) coating the straight-section cylinder body with the straight-section blades, and assembling and welding to form the straight-section tank body.

The G-straight section helical blade full-welding unit mainly comprises a tank body transferring RGV primary and secondary vehicle 36, a tank body rotating device 37, a blade full-welding system 38, a tank body longitudinal seam welding system 39 and a tank body vertical turnover device 40. And welding the blades on the inner side of the straight tank body with the wall of the cylinder body in a full welding manner.

The process flow of the invention can realize full-automatic control operation. The above automatic control method is a common technical content known in the art.

The device according to the invention can be purchased on the market by a person skilled in the art or can be assembled according to functional requirements.