Automatic cutting, rolling and welding machine for hub of electric vehicle

Abstract

The utility model provides an automatic cutting, rolling and welding machine for an electric vehicle hub. The automatic cutting, rolling and welding machine comprises a first conveying mechanism, a cutting and printing mechanism, a second conveying mechanism, a preliminary rolling mechanism, a pushing mechanism, a rolling positioning mechanism, a clamping and pulling-out mechanism and a laser welding mechanism. The first conveying mechanism is used for conveying the steel belt to the cutting and printing mechanism; the cutting and printing mechanism is used for cutting the steel belt into steel sheets with specified lengths; the second conveying mechanism is used for conveying the steel sheets to the primary edge rolling mechanism; the preliminary rolling mechanism is used for preliminarily rolling the steel sheet into an arc-shaped steel sheet; the pushing mechanism is used for pushing the arc-shaped steel sheet onto the edge rolling positioning mechanism; the edge rolling positioning mechanism is used for rolling the circular arc-shaped steel sheet into a circle and shaping the circular arc-shaped steel sheet; the clamping and pulling-out mechanism is used for clamping and positioning the two ends of the shaped round steel sheet and pulling out the round steel sheet from the edge rolling and positioning mechanism; and the laser welding mechanism is used for welding the two ends of the circular steel sheet clamped on the clamping and pulling-out mechanism, so that the human input can be reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub processing equipment, in particular to an automatic cutting and rolling welding machine for an electric vehicle wheel hub. Background Art

[0002] The wheel hub is a round metal part that supports the tire with its inner contour. The wheel hub of an electric vehicle is mainly made by cutting a steel strip, rolling it into a circle, and then welding the two ends of the steel strip together. At present, the cutting, rolling, and welding operations of the wheel hub of an electric vehicle require workers to use multiple machines with separate functions to complete the processing. The workers have a large workload and require a large amount of manpower. There are problems with low production efficiency and high production costs, and the product processing quality is unstable. Summary of the invention

[0003] The problem to be solved by the utility model is to provide an automatic cutting and rolling welding machine for electric vehicle wheel hub, which can reduce manpower input, improve production efficiency and ensure stable product processing quality.

[0004] To solve the above technical problems, an automatic cutting, rolling and welding machine for electric vehicle wheel hub is provided according to the utility model, which includes a first conveying mechanism, a cutting and printing mechanism, a second conveying mechanism, a preliminary rolling mechanism, a pushing mechanism, a rolling positioning mechanism, a clamping and pulling mechanism, and a laser welding mechanism; the first conveying mechanism is used to convey the steel strip to the cutting and printing mechanism; the cutting and printing mechanism is used to cut the steel strip into steel sheets of specified length; the second conveying mechanism is used to convey the steel sheets to the preliminary rolling mechanism; the preliminary rolling mechanism is used to preliminarily roll the steel sheets into arc-shaped steel sheets; the pushing mechanism is used to push the arc-shaped steel sheets onto the rolling positioning mechanism; the rolling positioning mechanism is used to roll the arc-shaped steel sheets into a circle and shape them; the clamping and pulling mechanism is used to clamp and position the two ends of the shaped circular steel sheet and pull it out from the rolling positioning mechanism; the laser welding mechanism welds the two ends of the circular steel sheet clamped on the clamping and pulling mechanism.

[0005] Preferably, the pushing mechanism includes a first support, a first transverse support column fixedly connected to one side of the first support, and a pushing assembly. The pushing assembly includes two pushing cylinders and a pushing plate symmetrically arranged on the first support. The pushing cylinder is drivingly connected to the pushing plate. A first arc-shaped avoidance groove is arranged on the top of the pushing plate, and the first transverse support column is arranged on the first arc-shaped avoidance groove.

[0006] Preferably, the curling positioning mechanism includes a circular ring positioning mechanism and an end clamping mechanism; the circular ring positioning mechanism includes a second support, two first positioning components, and two second positioning components; the second support includes two vertical plates arranged in parallel, and a second arc-shaped avoidance groove is arranged on the top of the vertical plate; the two first positioning components are symmetrically arranged on both sides of the second support; the first positioning component includes a first positioning cylinder fixedly connected between the two vertical plates, and a first C-shaped support member driven and connected to the first positioning cylinder; the two second positioning components are symmetrically arranged on both sides of the second support; the second positioning component includes a second positioning cylinder fixedly connected between the two vertical plates, and a second C-shaped support member driven and connected to the second positioning cylinder The invention discloses a C-shaped support member, wherein the front end of the second C-shaped support member is rotatably connected with a plurality of first rollers in parallel; the end clamping mechanism comprises a second transverse support column assembled at one end of the first transverse support column, a lifting cylinder, a pressure plate and a clamping mechanism arranged at the bottom of the second transverse support column, the pressure plate comprises a clamping portion and a limiting portion connected in a "T" shape, a strip accommodating groove matching the limiting portion is arranged at the top of the second transverse support column, the limiting portion is movably arranged on the strip accommodating groove, a through hole communicating with the strip accommodating groove is penetrated by the second transverse support column, a push rod drivingly connected to the lifting cylinder is movably arranged on the through hole, and the clamping mechanism comprises a clamping cylinder and a pressure block drivingly connected to the clamping cylinder.

[0007] Preferably, the clamping and pulling mechanism includes a Y-axis linear drive mechanism, a third support driven by the Y-axis linear drive mechanism, a first clamping assembly, and a second clamping assembly. The first clamping assembly and the second clamping assembly both include a lower clamping arm, a connecting rod hinged at the top of the lower clamping arm, an upper clamping arm hinged at one end of the connecting rod, and a clamping cylinder. The other end of the connecting rod is hinged on the output shaft of the clamping cylinder. The lower clamping arm and the clamping cylinder of the first clamping assembly are both fixedly connected to the top of the third support. The top of the third support is slidably connected with an X-axis slide along the X-axis direction. The top of the third support is provided with an X-axis driving cylinder driven by the X-axis slide. The lower clamping arm and the clamping cylinder of the second clamping assembly are both fixedly connected to the top of the X-axis slide. The top of the second transverse support column is provided with a first accommodating groove and a second accommodating groove, which are respectively located on both sides of the strip accommodating groove. The lower clamping arms of the first clamping assembly and the second clamping assembly are respectively arranged corresponding to the first accommodating groove and the second accommodating groove.

[0008] Preferably, the cutting and printing mechanism includes an upper die base, an upper template, a lower die base, and a stamping cylinder arranged at the top of the upper die base and drivingly connected to the upper template, the bottom of the upper template is provided with a printing upper die and an upper cutting knife, and the top of the lower die base is provided with a printing lower die and a lower cutting knife respectively arranged corresponding to the printing upper die and the upper cutting knife.

[0009] Preferably, the second conveying mechanism includes an outer cover and a conveying mechanism arranged on the inner side of the outer cover, the outer cover includes two side plates arranged in parallel and a bottom plate fixedly connected between the bottoms of the two side plates; the preliminary curling mechanism includes a first bending mechanism and a second bending mechanism, the first bending mechanism includes a first bending cylinder fixedly connected between one end of the two side plates, a third C-shaped support member driven by the first bending cylinder, a front end of the third C-shaped support member is rotatably connected in parallel with a plurality of second rollers, and the second bending mechanism includes a second bending cylinder arranged on the bottom plate and a push plate driven by the second bending cylinder.

[0010] Preferably, both sides of the push plate are fixedly connected with horizontal guide rods, and the horizontal guide rods are connected to the first support via a bearing.

[0011] Preferably, longitudinal guide rods are fixedly connected to both sides of the bottom of the limiting portion, and a longitudinal guide hole matching the longitudinal guide rod is penetrated through the second transverse support column, and the longitudinal guide rod is movably arranged in the longitudinal guide hole.

[0012] Preferably, the laser welding mechanism includes a bracket, an X-axis linear drive mechanism disposed on the bracket, a Z-axis linear drive mechanism drivingly connected to the X-axis linear drive mechanism, and a laser welding module drivingly connected to the Z-axis linear drive mechanism.

[0013] The beneficial effects of the utility model are as follows: the utility model provides an automatic cutting, rolling and welding machine for an electric vehicle wheel hub, which conveys a steel strip forward through a first conveying mechanism, and when the steel strip is conveyed to a specified length, the cutting and printing mechanism cuts and prints the steel strip to cut the steel strip into steel sheets of specified length, and prints on the surface of the steel sheets, and the steel sheets are conveyed to a preliminary rolling mechanism driven by a second conveying mechanism, and the preliminary rolling mechanism rolls the steel sheet into an arc shape, and then the arc-shaped steel sheet is pushed to a rolling positioning mechanism through a pushing mechanism, and the rolling positioning mechanism rolls the steel sheet into a circle and shapes it, and then the clamping and pulling mechanism clamps and positions the two ends of the shaped circular steel sheet and pulls it out from the rolling positioning mechanism, and in the process of the clamping and pulling mechanism pulling out the circular steel sheet, the laser welding mechanism welds the gap between the two ends of the steel sheet, and automatically completes the operations of feeding, cutting, printing, rolling and welding, effectively reduces manpower input, greatly improves production efficiency, reduces production costs, can ensure stable product processing quality, and reduce defective rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The schematic diagram of the appearance structure of the utility model is illustrated.

[0015] Figure 2 A cross-sectional view of the first direction of the utility model is illustrated.

[0016] Figure 3A cross-sectional view in the second direction of the present invention is illustrated.

[0017] Figure 4 The utility model is illustrated Figure 3 Schematic diagram of the partially enlarged structure of part A in the middle.

[0018] Figure 5 The structural schematic diagram of the material pushing mechanism of the utility model is illustrated.

[0019] Figure 6 The structural schematic diagram of the rolling circle positioning mechanism of the utility model is illustrated.

[0020] Figure 7 The structural schematic diagram of the clamping and pulling mechanism of the utility model is illustrated.

[0021] Figure 8 The structural schematic diagram of the laser welding mechanism of the utility model is illustrated.

[0022] Description of the accompanying drawings: first conveying mechanism 1, cutting and printing mechanism 2, upper die seat 20, upper template 21, lower die seat 22, stamping cylinder 23, printing upper die 24, upper cutter 25, printing lower die 26, lower cutter 27, second conveying mechanism 3, outer cover 30, side plate 300, bottom plate 301, conveying mechanism 31, preliminary curling mechanism 4, first bending mechanism 40, first bending cylinder 400, third C-shaped support 401, second roller 402, first Second bending mechanism 41, second bending cylinder 410, push plate 411, push mechanism 5, first support 50, first transverse support column 51, first accommodating groove 510, second accommodating groove 511, push cylinder 52, push plate 53, first arc-shaped avoidance groove 530, horizontal guide rod 54, curling positioning mechanism 6, ring positioning mechanism 60, second support 600, vertical plate 600a, second arc-shaped avoidance groove 600b, first positioning assembly 601, first Positioning cylinder 601a, first C-shaped support member 601b, second positioning assembly 602, second positioning cylinder 602a, second C-shaped support member 602b, first roller 602c, end clamping mechanism 61, second transverse support column 610, strip-shaped receiving groove 610a, through hole 610b, longitudinal guide hole 610c, lifting cylinder 611, pressing plate 612, clamping part 612a, limiting part 612b, ejector rod 613, clamping cylinder 614 , pressing block 615, longitudinal guide rod 616, clamping and pulling mechanism 7, Y-axis linear drive mechanism 70, third support 71, first clamping assembly 72, lower clamping arm 720, connecting rod 721, upper clamping arm 722, clamping cylinder 723, second clamping assembly 73, X-axis slide 74, X-axis drive cylinder 75, laser welding mechanism 8, bracket 80, X-axis linear drive mechanism 81, Z-axis linear drive mechanism 82, laser welding module 83. DETAILED DESCRIPTION

[0023] To make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments.

[0024] Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present disclosure.

[0025] refer to Figure 1-8 .

[0026] The utility model provides an automatic cutting and rolling welding machine for an electric vehicle wheel hub, comprising a first conveying mechanism 1, a cutting and printing mechanism 2, a second conveying mechanism 3, a preliminary rolling mechanism 4, a pushing mechanism 5, a rolling positioning mechanism 6, a clamping and pulling mechanism 7, and a laser welding mechanism 8; the first conveying mechanism 1 is used for conveying a steel strip to the cutting and printing mechanism 2; the cutting and printing mechanism 2 is used for cutting the steel strip into steel sheets of a specified length; the second conveying mechanism 3 is used for conveying the steel sheets to the preliminary rolling mechanism 4; the preliminary rolling mechanism 4 is used for preliminarily rolling the steel sheets into arc-shaped steel sheets; the pushing mechanism 5 is used for pushing the arc-shaped steel sheets onto the rolling positioning mechanism 6; the rolling positioning mechanism 6 is used for rolling the arc-shaped steel sheets into a circle and shaping them; the clamping and pulling mechanism 7 is used for clamping and positioning the two ends of the shaped circular steel sheet and pulling it out from the rolling positioning mechanism 6; the laser welding mechanism 8 welds the two ends of the circular steel sheet clamped on the clamping and pulling mechanism 7.

[0027] The working principle is as follows: the steel strip is conveyed forward by the first conveying mechanism 1. When the steel strip is conveyed to the specified length, the cutting and printing mechanism 2 is used to cut and print the steel strip so as to cut the steel strip into steel sheets of the specified length and print the characters on the surface of the steel sheets. The steel sheets are conveyed to the preliminary rolling mechanism 4 driven by the second conveying mechanism 3. The preliminary rolling mechanism 4 rolls the steel sheets into an arc shape, and then the arc-shaped steel sheets are pushed to the rolling positioning mechanism 6 by the pushing mechanism 5. The rolling positioning mechanism 6 rolls the steel sheets into a circle and shapes them. Then, the clamping and pulling mechanism 7 clamps and positions the two ends of the shaped circular steel sheet and pulls it out from the rolling positioning mechanism 6. In the process of the clamping and pulling mechanism 7 pulling out the circular steel sheet, the laser welding mechanism 8 welds the gap between the two ends of the steel sheet, and automatically completes the operations of feeding, cutting, printing, rolling and welding, effectively reducing the manpower input, greatly improving the production efficiency, reducing the production cost, ensuring the stable processing quality of the products, and reducing the defective rate.

[0028] Based on the above embodiment, the pushing mechanism 5 comprises a first support 50, a first transverse support column 51 fixedly connected to one side of the first support 50, and a pushing assembly, wherein the pushing assembly comprises two pushing cylinders 52 and a pushing plate 53 symmetrically arranged on the first support 50, wherein the pushing cylinder 52 is drivingly connected to the pushing plate 53, a first arc-shaped avoidance groove 530 is arranged on the top of the pushing plate 53, and the first transverse support column 51 is arranged on the first arc-shaped avoidance groove 530. After the steel sheet is rolled into an arc shape by the preliminary rolling mechanism 4, the pushing cylinder 52 drives the pushing plate 53 to move forward, and the arc-shaped steel sheet will be pushed onto the rolling positioning mechanism 6 by the pushing plate 53.

[0029] Based on the above embodiment, the curling positioning mechanism 6 includes a circular ring positioning mechanism 60 and an end clamping mechanism 61; the circular ring positioning mechanism 60 includes a second support 600, two first positioning components 601, and two second positioning components 602. The second support 600 includes two vertical plates 600a arranged in parallel, and a second arc-shaped avoidance groove 600b is arranged on the top of the vertical plate 600a. The two first positioning components 601 are symmetrically arranged on both sides of the second support 600. The first positioning component 601 includes a first positioning cylinder 601a fixedly connected between the two vertical plates 600a, and a first C-shaped support 601b driven by the first positioning cylinder 601a. ​​The two second positioning components 602 are symmetrically arranged on both sides of the second support 600. The second positioning component 602 includes a second positioning cylinder 602a fixedly connected between the two vertical plates 600a, and a second C-shaped support 601b driven by the second positioning cylinder 602a. The front end of the second C-shaped support member 602b is connected to a plurality of first rollers 602c in parallel rotation; the end clamping mechanism 61 includes a second transverse support column 610 assembled at one end of the first transverse support column 51, a jacking cylinder 611 arranged at the bottom of the second transverse support column 610, a pressing plate 612, and a clamping mechanism, wherein the pressing plate 612 includes a clamping portion 612a and a limiting portion 612b connected in a "T" shape, and the second transverse support column 61 A strip-shaped receiving groove 610a matching with the limiting portion 612b is arranged at the top, the limiting portion 612b is movably arranged on the strip-shaped receiving groove 610a, a through hole 610b communicating with the strip-shaped receiving groove 610a is penetrated on the second transverse support column 610, a push rod 613 drivingly connected to the lifting cylinder 611 is movably arranged on the through hole 610b, and the pressing mechanism includes a pressing cylinder 614 and a pressing block 615 drivingly connected to the pressing cylinder 614.Specifically, the arc-shaped steel sheet is pushed to the rolling positioning mechanism 6 by the pushing mechanism 5, and the arc-shaped steel sheet will be located between the first positioning components 601 and the second positioning components 602. The first positioning cylinder 601a drives the first C-shaped support member 601b to move forward, so that the first C-shaped support members 601b of the two first positioning components 601 press and position the two positions on the lower side of the steel sheet. The second positioning cylinder 602a drives the second C-shaped support member 602b to move forward, so that the first rollers 602c of the second C-shaped support members 602b on the two second positioning components 602 press and position the two positions on the upper side of the steel sheet. The steel sheet is formed into the desired shape, and the two ends of the steel sheet will abut against the two ends of the limit portion 612b. On the side, the gaps at both ends of the steel sheet are located in the center of the top, and then the clamping cylinder 614 drives the pressing block 615 to move downward into the strip accommodating groove 610a, and the pressing block 615 will rest on the pressing plate 612 to allow the clamping part 612a to press and position the two ends of the steel sheet. When the clamping and pulling mechanism 7 needs to pull the steel sheet out of the rolling positioning mechanism 6 for welding, the clamping cylinder 614 drives the pressing block 615 to rise and reset, and then drives the push rod 613 to rise through the lifting cylinder 611, so that the push rod 613 can lift the pressing plate 612. At this time, the clamping and pulling mechanism 7 can pull the rolled steel sheet out of the rolling positioning mechanism 6. When the steel sheet moves, it will drive the first roller 602c to roll, which plays a guiding role in the transfer of the steel strip.

[0030] Based on the above embodiment, the clamping and pulling mechanism 7 includes a Y-axis linear drive mechanism 70, a third support 71 driven and connected to the Y-axis linear drive mechanism 70, a first clamping assembly 72, and a second clamping assembly 73. The first clamping assembly 72 and the second clamping assembly 73 both include a lower clamping arm 720, a connecting rod 721 hinged at the top of the lower clamping arm 720, an upper clamping arm 722 hinged at one end of the connecting rod 721, and a clamping cylinder 723. The other end of the connecting rod 721 is hinged on the output shaft of the clamping cylinder 723. The lower clamping arm 720 and the clamping cylinder 723 of the first clamping assembly 72 are fixedly connected to the third support 71. At the top, the top of the third support 71 is slidably connected to an X-axial slide 74 along the X-axis direction, and the top of the third support 71 is provided with an X-axial driving cylinder 75 drivingly connected to the X-axial slide 74. The lower clamping arm 720 and the clamping cylinder 723 of the second clamping assembly 73 are fixedly connected to the top of the X-axial slide 74, and the top of the second transverse support column 610 is provided with a first accommodating groove 510 and a second accommodating groove 511 respectively located on both sides of the strip accommodating groove 610a. The lower clamping arms 720 of the first clamping assembly 72 and the second clamping assembly 73 are respectively arranged corresponding to the first accommodating groove 510 and the second accommodating groove 511. Specifically, initially, the lower clamping arms 720 of the first clamping assembly 72 and the second clamping assembly 73 are respectively located in the first accommodating groove 510 and the second accommodating groove 511. When the clamping and pulling mechanism 7 needs to pull the steel sheet out of the rolling positioning mechanism 6, the X-axial driving cylinder 75 is first used to drive the X-axial slide 74 to move to adjust the distance between the first clamping assembly 72 and the second clamping assembly 73. Then, the clamping cylinders 723 of the first clamping assembly 72 and the second clamping assembly 73 drive their connecting rods 721 to move to close the upper clamping arms 722. The ends of the steel sheet will be clamped by the upper clamping arms 722 and the lower clamping arms 720. Then, the third support 71 is driven backward by the Y-axial linear driving mechanism 70 to pull the steel sheet out of the clamping and pulling mechanism 7. While the steel sheet is being pulled out, the laser welding mechanism 8 welds the gaps at both ends of the steel sheet.

[0031] Based on the above embodiment, the cutting and printing mechanism 2 includes an upper die base 20, an upper die plate 21, a lower die base 22, and a punching oil cylinder 23 arranged at the top of the upper die base 20 and drivingly connected to the upper die plate 21, the bottom of the upper die plate 21 is provided with a printing upper die 24 and an upper cutter 25, and the top of the lower die base 22 is provided with a printing lower die 26 and a lower cutter 27 respectively arranged corresponding to the printing upper die 24 and the upper cutter 25. The stamping oil cylinder 23 drives the upper die plate 21 to move downward so that the printing upper die 24 and the upper cutter 25 are respectively engaged with the printing lower die 26 and the lower cutter 27, so that the steel strip can be printed and cut.

[0032] Based on the above embodiment, the second conveying mechanism 3 includes an outer cover 30 and a conveying mechanism 31 arranged on the inner side of the outer cover 30, the outer cover 30 includes two side plates 300 arranged in parallel and a bottom plate 301 fixedly connected between the bottoms of the two side plates 300; the preliminary curling mechanism 4 includes a first bending mechanism 40 and a second bending mechanism 41, the first bending mechanism 40 includes a first bending cylinder 400 fixedly connected between one end of the two side plates 300, and a third C-shaped support 401 driven and connected to the first bending cylinder 400, the front end of the third C-shaped support 401 is rotatably connected in parallel with a plurality of second rollers 402, the second bending mechanism 41 includes a second bending cylinder 410 arranged on the bottom plate 301, and a push plate 411 driven and connected to the second bending cylinder 410. When the second conveying mechanism 3 conveys the steel sheet to the preliminary rolling mechanism 4, the first bending cylinder 400 drives the third C-shaped support 401 to move forward, and the second roller 402 will abut against the steel sheet and bend the steel sheet, and then the second bending cylinder 410 drives the push plate 411 to move forward. When the steel sheet is rolled, it will abut against the outer side of the push plate 411, which can limit the position of the steel sheet when it is rolled. The steel sheet is rolled into an arc shape. When the steel sheet is pushed onto the rolling positioning mechanism 6 by the pushing mechanism 5, the steel sheet will drive the second roller 402 to rotate, which plays a guiding role.

[0033] Based on the above embodiment, horizontal guide rods 54 are fixedly connected to both sides of the push plate 53. The horizontal guide rods 54 are connected to the first support 50 through a bearing, which can guide the forward and backward movement of the push plate 53.

[0034] Based on the above embodiment, longitudinal guide rods 616 are fixedly connected to both sides of the bottom of the limiting portion 612b, and a longitudinal guide hole 610c matching the longitudinal guide rod 616 is provided through the second transverse support column 610, and the longitudinal guide rod 616 is movably provided in the longitudinal guide hole 610c. When the pressing plate 612 moves up and down, the longitudinal guide rod 616 will move along the longitudinal guide hole 610c, and play a guiding role in the movement of the pressing plate 612.

[0035] Based on the above embodiment, the laser welding mechanism 8 includes a bracket 80, an X-axis linear driving mechanism 81 disposed on the bracket 80, a Z-axis linear driving mechanism 82 drivingly connected to the X-axis linear driving mechanism 81, and a laser welding module 83 drivingly connected to the Z-axis linear driving mechanism 82. The laser welding module 83 can be driven to move left and right by the X-axis linear driving mechanism 81 to adjust the left and right orientation of the laser welding module 83, and the laser welding module 83 can be driven to move downward by the Z-axis linear driving mechanism 82, so that the laser welding module 83 can weld the gaps at both ends of the steel strip.

[0036] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic cutting and rolling welding machine for electric vehicle wheel hub, characterized in that: It comprises a first conveying mechanism, a cutting and printing mechanism, a second conveying mechanism, a preliminary rolling mechanism, a pushing mechanism, a rolling positioning mechanism, a clamping and pulling mechanism, and a laser welding mechanism; the first conveying mechanism is used to convey the steel strip to the cutting and printing mechanism; the cutting and printing mechanism is used to cut the steel strip into steel sheets of specified length; the second conveying mechanism is used to convey the steel sheets to the preliminary rolling mechanism; the preliminary rolling mechanism is used to preliminarily roll the steel sheets into arc-shaped steel sheets; the pushing mechanism is used to push the arc-shaped steel sheets onto the rolling positioning mechanism; the rolling positioning mechanism is used to roll the arc-shaped steel sheets into a circle and shape them; the clamping and pulling mechanism is used to clamp and position the two ends of the shaped circular steel sheet and pull it out from the rolling positioning mechanism; the laser welding mechanism welds the two ends of the circular steel sheet clamped on the clamping and pulling mechanism.

2. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 1, characterized in that: The pushing mechanism includes a first support, a first transverse support column fixedly connected to one side of the first support, and a pushing assembly. The pushing assembly includes two pushing cylinders and a pushing plate symmetrically arranged on the first support. The pushing cylinder is drivingly connected to the pushing plate. A first arc-shaped avoidance groove is arranged on the top of the pushing plate, and the first transverse support column is arranged on the first arc-shaped avoidance groove.

3. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 2, characterized in that: The curling positioning mechanism includes a circular ring positioning mechanism and an end clamping mechanism; the circular ring positioning mechanism includes a second support, two first positioning components, and two second positioning components. The second support includes two vertical plates arranged in parallel, and a second arc-shaped avoidance groove is arranged on the top of the vertical plate. The two first positioning components are symmetrically arranged on both sides of the second support. The first positioning component includes a first positioning cylinder fixedly connected between the two vertical plates, and a first C-shaped support driven by the first positioning cylinder. The two second positioning components are symmetrically arranged on both sides of the second support. The second positioning component includes a second positioning cylinder fixedly connected between the two vertical plates, and a second C-shaped support driven by the second positioning cylinder. Part, the front end of the second C-shaped support part is rotatably connected with a plurality of first rollers in parallel; the end clamping mechanism includes a second transverse support column assembled at one end of the first transverse support column, a lifting cylinder, a pressure plate, and a clamping mechanism arranged at the bottom of the second transverse support column, the pressure plate includes a clamping portion and a limiting portion connected in a "T" shape, a strip accommodating groove matching the limiting portion is arranged on the top of the second transverse support column, the limiting portion is movably arranged on the strip accommodating groove, a through hole communicating with the strip accommodating groove is penetrated on the second transverse support column, a push rod drivingly connected to the lifting cylinder is movably arranged on the through hole, and the clamping mechanism includes a clamping cylinder and a pressure block drivingly connected to the clamping cylinder.

4. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 3, characterized in that: The clamping and pulling mechanism includes a Y-axis linear drive mechanism, a third support driven and connected to the Y-axis linear drive mechanism, a first clamping assembly, and a second clamping assembly. The first clamping assembly and the second clamping assembly both include a lower clamping arm, a connecting rod hinged at the top of the lower clamping arm, an upper clamping arm hinged at one end of the connecting rod, and a clamping cylinder. The other end of the connecting rod is hinged on the output shaft of the clamping cylinder. The lower clamping arm and the clamping cylinder of the first clamping assembly are both fixedly connected to the top of the third support. The top of the third support is slidably connected with an X-axis slide along the X-axis direction. The top of the third support is provided with an X-axis driving cylinder driven and connected to the X-axis slide. The lower clamping arm and the clamping cylinder of the second clamping assembly are both fixedly connected to the top of the X-axis slide. The top of the second transverse support column is provided with a first accommodating groove and a second accommodating groove respectively located on both sides of the strip accommodating groove. The lower clamping arms of the first clamping assembly and the second clamping assembly are respectively arranged corresponding to the first accommodating groove and the second accommodating groove.

5. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 4, characterized in that: The cutting and printing mechanism includes an upper die base, an upper die plate, a lower die base, which are arranged in sequence from top to bottom, and a stamping cylinder arranged on the top of the upper die base and drivingly connected to the upper die plate; a printing upper die and an upper cutting knife are arranged at the bottom of the upper die plate; and a printing lower die and a lower cutting knife are arranged at the top of the lower die base, which are respectively arranged corresponding to the printing upper die and the upper cutting knife.

6. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 5, characterized in that: The second conveying mechanism includes an outer cover and a conveying mechanism arranged on the inner side of the outer cover, the outer cover includes two side plates arranged in parallel and a bottom plate fixedly connected between the bottoms of the two side plates; the preliminary curling mechanism includes a first bending mechanism and a second bending mechanism, the first bending mechanism includes a first bending cylinder fixedly connected between one end of the two side plates, and a third C-shaped support member driven and connected to the first bending cylinder, the front end of the third C-shaped support member is rotatably connected in parallel with a plurality of second rollers, and the second bending mechanism includes a second bending cylinder arranged on the bottom plate and a push plate driven and connected to the second bending cylinder.

7. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 2, characterized in that: Horizontal guide rods are fixedly connected to both sides of the push plate, and the horizontal guide rods are connected to the first support via bearings.

8. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 3, characterized in that: Both sides of the bottom of the limiting portion are fixedly connected with longitudinal guide rods, and the second transverse support column is penetrated by a longitudinal guide hole matching the longitudinal guide rod, and the longitudinal guide rod is movably arranged in the longitudinal guide hole.

9. The electric vehicle wheel hub automatic cutting and rolling welding machine according to claim 1, characterized in that: The laser welding mechanism comprises a bracket, an X-axis linear drive mechanism arranged on the bracket, a Z-axis linear drive mechanism drivingly connected to the X-axis linear drive mechanism, and a laser welding module drivingly connected to the Z-axis linear drive mechanism.

Images