A welding device for a car seat bracket

Abstract

The utility model discloses a kind of welding devices for automobile seat support, it includes: pedestal, front positioning module, first rear positioning module, first side positioning module, first rear positioning module includes rear positioning block installed on pedestal, is equipped with rear positioning block on rear positioning needle, rear clamping jaw is rotatably connected on rear positioning block, rear driving portion is rotatably connected with the rear end portion of rear clamping jaw and drives the front end portion of rear clamping jaw to overturn towards rear positioning block or overturn away from rear positioning block;First side positioning module includes side slide rail fixed on pedestal and located left side of front positioning block, side sliding block is slidably connected on side slide rail, side driving portion is used to drive side sliding block to move in direction towards front positioning module or direction away from front positioning module, side clamping jaw is installed on side sliding block.The utility model utilizes front positioning module, first rear positioning module and first side positioning module to realize the welding seam alignment fixing of welding piece, ensure the precision of relative position of welding piece.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, and specifically relates to a welding device for automobile seat brackets. Background Technology

[0002] Welding fixtures are key auxiliary equipment in the welding process. Due to the variety of structures of welded parts, it is necessary to design targeted welding fixtures for the adjustment of welded parts, especially for fixing the weld seam. Current welding fixtures cannot fix the welded parts from multiple positions and thus achieve weld seam alignment. It is necessary to design a targeted welding device that can protect the stable operation of each driving component of the welding fixture during the welding process. Summary of the Invention

[0003] The purpose of this invention is to provide a welding device for automobile seat brackets, which can specifically clamp and fix the welded parts to align the weld seams.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a welding device for an automobile seat bracket, comprising:

[0005] The base has several through holes running vertically through it.

[0006] A front positioning module includes a front positioning block, a front positioning pin on the front positioning block, and a front drive unit mounted on the base for driving the front positioning block to move in the front-rear direction.

[0007] The first rear positioning module includes a rear positioning block mounted on the base, a rear positioning pin on the rear positioning block, a rear gripper rotatably connected to the rear positioning block in the middle, and a rear driving part rotatably connected to the rear end of the rear gripper and driving the front end of the rear gripper to flip toward or away from the rear positioning block.

[0008] The first side positioning module includes a side slide rail fixed to the base and located to the left of the front positioning block, a side slider slidably connected to the side slide rail, a side drive unit for driving the side slider to move in a direction toward or away from the front positioning module, and a side gripper mounted on the side slider. The position of the side gripper on the side slider and closest to the front positioning module is its inner limit position, and the opposite position is its outer limit position. When the side gripper is in the inner limit position and the rear gripper clamps the side gripper, the side gripper and the rear gripper clamp the workpiece simultaneously. A third protective plate is provided on the side slider. When the side slider is in the inner limit position, the third protective plate is located on the side slide rail.

[0009] In another embodiment, the welding device further includes a second rear positioning module that is symmetrically arranged with respect to the first rear positioning module in the left-right direction.

[0010] In another embodiment, the welding device further includes a second side positioning module that is symmetrically arranged with respect to the first side positioning module in the left-right direction.

[0011] In another embodiment, the welding device further includes symmetrical front protection modules disposed on the left and right sides of the front positioning module. Each front protection module includes a protective base fixed to the base, a protective support rod rotatably connected to the protective base in the middle, a protective drive part rotatably connected to the front end of the protective support rod and driving the front end of the protective support rod to flip toward the front positioning block or away from the rear positioning block, and a first protective plate fixed to the front end of the protective support rod.

[0012] In another embodiment, the front drive unit includes a front double-acting cylinder with its piston rod extending out of the cylinder body, a front wrench with its lower end rotatably connected to the base and having a waist-shaped hole in its middle section, and the front end of the piston rod of the front double-acting cylinder being connected to the waist-shaped hole of the front wrench via a front pin. Moving the front wrench can push the piston rod of the front double-acting cylinder to move, thereby driving the front positioning block to move.

[0013] In another embodiment, the front positioning module includes a front mounting block fixed to the rear end of the piston rod of the front double-acting cylinder, and a second protective plate mounted on the front mounting block that can cover the piston rod of the front double-acting cylinder when the piston rod of the front double-acting cylinder is fully extended rearward. The front positioning block is mounted on the front mounting block, and the second protective plate can effectively protect the front double-acting cylinder during welding.

[0014] In another embodiment, the first side positioning module includes a side wrench fixed to the side slider. Moving the side wrench can push the side slider to move, thereby causing the side gripper to move between the inner limit position and the outer limit position.

[0015] In another embodiment, the side gripper includes a side base fixed to the side slider, a side positioning cylinder fixed to the side base, an upper side clamping block rotatably connected to the side base at its outer end, an upper clamping cylinder fixed to the side base with its piston rod rotatably connected to the middle of the side clamping block, a lower side clamping block symmetrically arranged with the upper side clamping block and located below the side positioning cylinder, and a lower clamping cylinder symmetrically arranged with the upper clamping cylinder and located below the side positioning cylinder.

[0016] In another embodiment, the lower clamping block is provided with a through hole, and the first side positioning module includes a side sensor installed on the cylinder body of the side positioning cylinder and located below the piston rod extension position of the side positioning cylinder. When the welded part is in place, the welded part is within the sensing range of the side sensor.

[0017] In another embodiment, the front mounting block is provided with a front sensor. When the welded part is in place, the welded part is within the sensing range of the front sensor. During welding, the first protective plate covers the front sensor and the part of the welded part that does not need to be welded, effectively protecting the sensor and the part of the welded part that does not need to be welded.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model uses a front positioning module, a first rear positioning module and a first side positioning module to realize the weld seam alignment and fixation of the welded parts, ensuring the accuracy of the relative position of the welded parts, and it effectively protects the driving part of each positioning module by using a first protective plate, a second protective plate and a third protective plate. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a structural diagram of the front positioning module;

[0021] Figure 3 This is a structural schematic diagram of the first post-positioning module;

[0022] Figure 4 This is a structural schematic diagram of the first-side positioning module;

[0023] Figure 5 This is a schematic diagram of the front protection module. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0025] See Figure 1 As shown, the welding device for the car seat bracket includes: a base 5, a front positioning module 1, a first rear positioning module 2, a first side positioning module 3, a second rear positioning module 7 symmetrically arranged with the first rear positioning module 2 in the left-right direction, a second side positioning module 6 symmetrically arranged with the first side positioning module 3 in the left-right direction, and front protective modules 4 symmetrically arranged on the left and right sides of the front positioning module 1. The base 5 has several vertically penetrating clearance holes 51.

[0026] See Figure 2As shown, the front positioning module 1 includes a front positioning block 11, a front positioning pin 12 on the front positioning block 11, and a front drive unit 13 mounted on the base 5 for driving the front positioning block 11 to move in the front-rear direction. The front drive unit 13 includes a front double-acting cylinder 14 with its piston rod extending out of the cylinder body, a front wrench 15 with its lower end rotatably connected to the base 5 and a waist-shaped hole in its middle section, and the front end of the piston rod of the front double-acting cylinder 14 being connected to the waist-shaped hole of the front wrench 15 through a front pin 19 and fixed to the front. The front mounting block 16 on the rear end of the piston rod of the double-acting cylinder 14, and the second protective plate 17 mounted on the front mounting block 16 that can cover the piston rod of the front double-acting cylinder 14 when the piston rod of the front double-acting cylinder 14 is fully extended rearward, and the front wrench 15 can be moved to push the piston rod of the front double-acting cylinder 14 to move, thereby driving the front positioning block 11 to move; the front positioning block 11 is mounted on the front mounting block 16, and the second protective plate 17 can effectively protect the front double-acting cylinder 14 during welding.

[0027] See Figure 3 As shown, the first rear positioning module 2 includes a rear positioning block 21 mounted on the base 5, a rear positioning pin 22 provided on the rear positioning block 21, a rear gripper 23 rotatably connected to the rear positioning block 21 in the middle, and a rear driving part 24 rotatably connected to the rear end of the rear gripper 23 and driving the front end of the rear gripper 23 to flip toward or away from the rear positioning block 21.

[0028] See Figure 4As shown, the first side positioning module 3 includes a side slide rail 31 fixed on the base 5 and located to the left of the front positioning block 11, a side slider 32 slidably connected to the side slide rail 31, a side drive unit 33 for driving the side slider 32 to move in the direction toward or away from the front positioning module 1, a side gripper 35 mounted on the side slider 32, and a side wrench 34 fixed on the side slider 32. The position of the side gripper 35 on the side slider 32 and closest to the front positioning module 1 is its inner limit position, and the opposite is its outer limit position. When the side gripper 35 is in the inner limit position and the rear gripper 23 clamps the side gripper 35, the side gripper 35 and the rear gripper 23 clamp the workpiece simultaneously. The side slider 32 is provided with a third protective plate 313. When the side slider 32 is in the inner limit position, the third protective plate 313 is located on the side slide rail 31. Moving the side wrench 34 can push the side slider 32 to move, thereby driving the side gripper 35 to move between the inner limit position and the outer limit position. The side gripper 35 includes a side base 36 fixed to the side slider 32, a side positioning cylinder 37 fixed to the side base 36, an upper side clamping block 38 rotatably connected to the side base 36 at its outer end, an upper clamping cylinder 39 fixed to the side base 36 with its piston rod rotatably connected to the middle of the side clamping block, a lower side clamping block 310 symmetrically arranged with the upper side clamping block 38 and located below the side positioning cylinder 37, and a lower clamping cylinder 311 symmetrically arranged with the upper clamping cylinder 39 and located below the side positioning cylinder 37. The lower side clamping block 310 has a through hole. The first side positioning module 3 includes a side sensor 312 mounted on the cylinder body of the side positioning cylinder 37 and located below the extended position of the piston rod of the side positioning cylinder 37. When the welded part is in place, the welded part is within the sensing range of the side sensor 312.

[0029] See Figure 5 As shown, each front protection module 4 includes a protection base 41 fixed on the base 5, a protection support rod 42 rotatably connected to the protection base 41 in the middle, a protection drive part 43 rotatably connected to the front end of the protection support rod 42 and driving the front end of the protection support rod 42 to flip toward the front positioning block 11 or away from the rear positioning block 21, and a first protection plate 44 fixed to the front end of the protection support rod 42.

[0030] The front mounting block 16 is equipped with a front sensor 18. When the welded part is in place, the welded part is within the sensing range of the front sensor 18. The first protective plate 44 covers the front sensor 18 and the part of the welded part that does not need to be welded during welding, effectively protecting the sensor and the part of the welded part that does not need to be welded.

[0031] The rear drive unit 24, the side drive unit 33, and the protective drive unit 43 are all cylinders, with the protective drive unit 43 and the rear drive unit 24 passing through the relief hole 51.

[0032] The front positioning pin 12 on the front positioning module 1, the rear positioning pin 22 on the first rear positioning module 2, and the rear positioning pin 22 on the second rear positioning module 7 achieve coarse positioning of the two welded parts. After the first side positioning module 3 and the second side positioning module 6 clamp the welded parts, the weld seams of the two welded parts can be aligned. Then, the front side protection module 4 flips the first protection plate 44 to cover the front sensor 18 and the parts of the welded parts that do not need to be welded. During welding, the sensor and the parts of the welded parts that do not need to be welded are effectively protected. The second protection plate 17 can effectively protect the front double-acting cylinder 14 during welding. The third protection plate 313 can effectively protect the side slide rail 31, thereby reducing the failure rate of the welding fixture and increasing the service life of the welding fixture.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A welding apparatus for automobile seat brackets, characterized in that, It includes: The base has several through holes running vertically through it. A front positioning module includes a front positioning block, a front positioning pin on the front positioning block, and a front drive unit mounted on the base for driving the front positioning block to move in the front-rear direction. The first rear positioning module includes a rear positioning block mounted on the base, a rear positioning pin on the rear positioning block, a rear gripper rotatably connected to the rear positioning block in the middle, and a rear driving part rotatably connected to the rear end of the rear gripper and driving the front end of the rear gripper to flip toward or away from the rear positioning block. The first side positioning module includes a side slide rail fixed to the base and located to the left of the front positioning block, a side slider slidably connected to the side slide rail, a side driving part for driving the side slider to move in a direction toward or away from the front positioning module, and a side gripper mounted on the side slider. The position of the side gripper on the side slider and closest to the front positioning module is its inner limit position, and the position away from it is its outer limit position.

2. The welding apparatus for automobile seat brackets according to claim 1, characterized in that: The welding device also includes a second rear positioning module that is symmetrically arranged with respect to the first rear positioning module in the left-right direction.

3. The welding apparatus for automobile seat brackets according to claim 1, characterized in that: The welding device also includes a second side positioning module that is symmetrically arranged with respect to the first side positioning module in the left-right direction.

4. The welding apparatus for automobile seat brackets according to claim 1, characterized in that: The welding device also includes symmetrical front protection modules located on the left and right sides of the front positioning module. Each front protection module includes a protective base fixed to the base, a protective support rod rotatably connected to the protective base in the middle, a protective drive part rotatably connected to the front end of the protective support rod and driving the front end of the protective support rod to flip toward the front positioning block or away from the rear positioning block, and a first protective plate fixed to the front end of the protective support rod.

5. The welding apparatus for automobile seat brackets according to claim 1, characterized in that: The front drive unit includes a front double-acting cylinder with its piston rod extending out of the cylinder body, a front wrench with its lower end rotatably connected to the base and a waist-shaped hole in its middle section, and the front end of the piston rod of the front double-acting cylinder being connected to the waist-shaped hole of the front wrench via a front pin.

6. The welding apparatus for automobile seat brackets according to claim 5, characterized in that: The front positioning module includes a front mounting block fixed to the rear end of the piston rod of the front double-acting cylinder, and a second protective plate mounted on the front mounting block that can cover the piston rod of the front double-acting cylinder when the piston rod of the front double-acting cylinder is fully extended rearward. The front positioning block is mounted on the front mounting block.

7. The welding apparatus for automobile seat brackets according to claim 1, characterized in that: The first side positioning module includes a side wrench fixed to the side slider.

8. The welding apparatus for automobile seat brackets according to claim 1, characterized in that: The side gripper includes a side base fixed to the side slider, a side positioning cylinder fixed to the side base, an upper side clamping block rotatably connected to the side base at its outer end, an upper clamping cylinder fixed to the side base with its piston rod rotatably connected to the middle of the side clamping block, a lower side clamping block symmetrically arranged with the upper side clamping block and located below the side positioning cylinder, and a lower clamping cylinder symmetrically arranged with the upper clamping cylinder and located below the side positioning cylinder.

9. The welding apparatus for automobile seat brackets according to claim 8, characterized in that: The lower clamping block has a through hole. The first side positioning module includes a side sensor installed on the cylinder body of the side positioning cylinder and located below the piston rod extension position of the side positioning cylinder. When the welded part is in place, the welded part is within the sensing range of the side sensor.

10. The welding apparatus for an automobile seat bracket according to claim 6, characterized in that: The front mounting block is equipped with a front sensor. When the welded part is in place, the welded part is within the sensing range of the front sensor.

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