Welding clamp for automobile top edge beam reinforcing plate assembly

Abstract

The utility model discloses a welding fixture for an automobile top edge beam reinforcing plate assembly. Comprising a first clamping device for clamping a first end of a reinforcing plate body and a first mounting bracket, a second clamping device for clamping the first mounting bracket, a third clamping device for clamping a second end of the reinforcing plate body and a second mounting bracket, and a fourth clamping device for clamping the second mounting bracket, the first clamping device and the second clamping device are oppositely arranged, the third clamping device and the fourth clamping device are oppositely arranged, the first clamping device is provided with a first positioning pin used for positioning the reinforcing plate body, and the second clamping device is provided with a second positioning pin used for positioning the first mounting support. And a third positioning pin for positioning the second mounting bracket is arranged on the fourth clamping device. According to the welding clamp for the automobile top edge beam reinforcing plate assembly, through cooperation of the four clamping devices, fixing and accurate positioning of the reinforcing plate body, the first installation support and the second installation support can be achieved, the quality of welded products can be improved, and the welding work efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts production equipment, and specifically relates to an automobile top side beam reinforcement plate assembly welding fixture. Background Art

[0002] The automobile roof side beam reinforcement plate assembly is welded by the reinforcement plate body, the first mounting bracket and the second mounting bracket. During production, the reinforcement plate body, the first mounting bracket and the second mounting bracket are first formed by bending the sheet metal to form a stamping part, and then the reinforcement plate body, the first mounting bracket and the second mounting bracket need to be welded.

[0003] The prior art lacks a fixture that can achieve accurate positioning of the various components that make up the automobile roof side beam reinforcement plate assembly during welding, which affects the quality of the product after welding and affects the production efficiency.

[0004] For example, the patent document with the announcement number CN217193584U discloses a water tank frame welding tool, the water tank frame includes a main body, a first reinforcement bracket and a second reinforcement bracket arranged on the main body, a rear bracket connected to one side of the main body, a left headlight bracket connected to the rear bracket, an air pipe bracket connected to the other side of the main body, and a right headlight bracket connected to the air pipe bracket. The water tank frame welding tool includes: a base, a first positioning clamping device arranged on the base for clamping the left headlight bracket and the rear bracket, a second positioning clamping device arranged on the base for clamping the main body, the first reinforcement bracket and the second reinforcement bracket, and a third positioning clamping device arranged on the base for clamping the air pipe bracket and the right headlight bracket. The technical solution disclosed in the patent document also cannot solve the technical problems described above. Utility Model Content

[0005] The utility model provides a welding fixture for an automobile top side beam reinforcement plate assembly, aiming to improve the product quality and welding work efficiency of the automobile top side beam reinforcement plate assembly after welding.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a welding fixture for an automobile top side beam reinforcement plate assembly, comprising a first clamping device for clamping the first end of the reinforcement plate body and the first mounting bracket, a second clamping device for clamping the first mounting bracket, a third clamping device for clamping the second end of the reinforcement plate body and the second mounting bracket, and a fourth clamping device for clamping the second mounting bracket, the first clamping device and the second clamping device are arranged relative to each other, the third clamping device and the fourth clamping device are arranged relative to each other, the first clamping device is provided with a first positioning pin for positioning the reinforcement plate body, the second clamping device is provided with a second positioning pin for positioning the first mounting bracket, and the fourth clamping device is provided with a third positioning pin for positioning the second mounting bracket.

[0007] The first clamping device includes a first clamping bracket, a first clamping arm rotatably arranged on the first clamping bracket, a first upper clamping block arranged on the first clamping arm, and a first lower clamping block cooperating with the first upper clamping block to clamp the first end of the reinforcement plate body and the first mounting bracket. The rotation centerline of the first clamping arm is parallel to the first direction, and the first positioning pin is arranged on the first clamping bracket.

[0008] The first clamping device further comprises a first auxiliary upper clamping block arranged on the first clamping arm and a first auxiliary lower clamping block arranged on the first clamping bracket and cooperating with the first auxiliary upper clamping block to clamp the first end of the reinforcing plate body.

[0009] The second clamping device includes a second clamping bracket, a second clamping arm rotatably arranged on the second clamping bracket, a second upper clamping block, a second lower clamping block cooperating with the second upper clamping block to clamp the first mounting bracket, a first driving mechanism arranged on the second clamping arm and used to control the second lower clamping block to move linearly, a second driving mechanism arranged on the first driving mechanism and used to control the second upper clamping block to rotate, and the second positioning pin is arranged on the second lower clamping block.

[0010] The first driving mechanism includes a first cylinder and a first mounting plate connected to the first cylinder, the second lower clamping block and the second driving mechanism are arranged on the first mounting plate, and the first cylinder is arranged on the second clamping arm.

[0011] The second driving mechanism includes a second cylinder and a second mounting plate connected to the second cylinder. The second cylinder is arranged on the first mounting plate, and the second upper clamping block is arranged on the second mounting plate.

[0012] The third clamping device includes a third clamping bracket, a third clamping arm rotatably arranged on the third clamping bracket, a third upper clamping block arranged on the third clamping arm, and a third lower clamping block cooperating with the third upper clamping block to clamp the second mounting bracket and the second mounting bracket.

[0013] The fourth clamping device includes a fourth clamping bracket, a fourth clamping arm rotatably arranged on the fourth clamping bracket, a fourth upper clamping block, a fourth lower clamping block cooperating with the fourth upper clamping block to clamp the second mounting bracket, a third driving mechanism arranged on the fourth clamping arm and used to control the fourth lower clamping block to move linearly, and a fourth driving mechanism arranged on the third driving mechanism and used to control the fourth upper clamping block to rotate, and the third positioning pin is arranged on the fourth lower clamping block.

[0014] The third driving mechanism comprises a third cylinder and a third mounting plate connected to the third cylinder, the fourth lower clamping block and the fourth driving mechanism are arranged on the third mounting plate, and the third cylinder is arranged on the fourth clamping arm.

[0015] The fourth driving mechanism comprises a fourth cylinder and a fourth mounting plate connected to the fourth cylinder, the fourth cylinder is arranged on the third mounting plate, and the fourth upper clamping block is arranged on the fourth mounting plate.

[0016] The automobile top side beam reinforcement plate assembly welding fixture of the utility model can achieve the fixation and accurate positioning of the reinforcement plate body and the first mounting bracket and the second mounting bracket through the cooperation of the four clamping devices, which can improve the product quality after welding and improve the welding work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 It is a structural schematic diagram of a welding fixture for an automobile top side beam reinforcement plate assembly according to the utility model;

[0019] Figure 2 This is a schematic diagram of the use state of the welding fixture of the automobile top side beam reinforcement plate assembly of the utility model;

[0020] Figure 3 is a schematic structural diagram of a first clamping device;

[0021] Figure 4 is a schematic structural diagram of a second clamping device;

[0022] Figure 5 is a schematic structural diagram of a third clamping device;

[0023] Figure 6 is a schematic structural diagram of a fourth clamping device;

[0024] The markings in the figure are: 1. first mounting bracket; 2. first clamping bracket; 3. first clamping arm; 4. first upper clamping block; 5. first lower clamping block; 6. reinforcing plate body; 7. first positioning pin; 8. first auxiliary upper clamping block; 9. first auxiliary lower clamping block; 10. second clamping bracket; 11. second clamping arm; 12. second upper clamping block; 13. second lower clamping block; 14. first cylinder; 15. second cylinder; 16. second mounting plate; 17. first support rod; 18. third clamping bracket; 19. third Clamping arm; 20, third upper clamping block; 21, third lower clamping block; 22, third driver; 23, second auxiliary upper clamping block; 24, second auxiliary lower clamping block; 25, fourth clamping bracket; 26, fourth clamping arm; 27, fourth upper clamping block; 28, fourth lower clamping block; 29, third cylinder; 30, third mounting plate; 31, fourth cylinder; 32, fourth mounting plate; 33, second support rod; 34, second mounting bracket; 35, first mounting plate; 36, first positioning plate; 37, second positioning plate. DETAILED DESCRIPTION

[0025] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0026] like Figures 1 to 6 As shown, the utility model provides a welding fixture for an automobile top side beam reinforcement plate assembly, comprising a first clamping device for clamping a first end of a reinforcement plate body 6 and a first mounting bracket 1, a second clamping device for clamping the first mounting bracket 1, a third clamping device for clamping the second end of the reinforcement plate body 6 and the second mounting bracket 34, and a fourth clamping device for clamping the second mounting bracket 34. The first clamping device and the second clamping device are arranged relative to each other, and the third clamping device and the fourth clamping device are arranged relative to each other. The first clamping device is provided with a first positioning pin 7 for positioning the reinforcement plate body 6, the second clamping device is provided with a second positioning pin for positioning the first mounting bracket 1, and the fourth clamping device is provided with a third positioning pin for positioning the second mounting bracket 34.

[0027] Specifically, if Figure 1 and Figure 2As shown, the first clamping device and the third clamping device are on a straight line parallel to the first direction, the second clamping device and the fourth clamping device are on another straight line parallel to the first direction, the first clamping device and the third clamping device are on a straight line parallel to the second direction, the second clamping device and the fourth clamping device are on a straight line parallel to the second direction, the first direction and the second direction are both horizontal directions and the first direction and the second direction are perpendicular, and the first clamping device, the second clamping device, the third clamping device and the fourth clamping device are arranged on a base (not shown in the figure). In the clamped state, the reinforcing plate body 6 is parallel to the first direction, and the first mounting bracket 1 and the second mounting bracket 34 are fixed on the top surface of the reinforcing plate body 6.

[0028] The reinforcing plate body 6 is connected to the top side beam of the automobile. The shape of the reinforcing plate body 6 matches the shape of the top side beam. The reinforcing plate body 6 is also used to connect to the A-pillar, B-pillar and C-pillar of the automobile body. The first mounting bracket 1 and the second mounting bracket 34 are used to connect to other parts of the automobile body. The first mounting bracket 1 needs to be welded to the first end of the reinforcing plate body 6, and the second mounting bracket 34 needs to be welded to the second end of the reinforcing plate body 6. The first end and the second end of the reinforcing plate body 6 are opposite ends in the length direction of the reinforcing plate body 6.

[0029] like Figures 1 to 3 As shown, the first clamping device includes a first clamping bracket 2 vertically arranged on the base, a first clamping arm 3 rotatably arranged on the first clamping bracket 2, a first upper clamping block 4 arranged on the first clamping arm 3, a first lower clamping block 5 cooperating with the first upper clamping block 4 to clamp the first end of the reinforcement plate body 6 and the first mounting bracket 1, and a first driver arranged on the first clamping bracket 2 and used to provide a driving force for the first clamping arm 3 to rotate. The rotation centerline of the first clamping arm 3 is parallel to the first direction, the first positioning pin 7 is vertically arranged on the first clamping bracket 2, and the first end of the reinforcement plate body 6 is provided with a positioning hole for the first positioning pin 7 to be embedded.

[0030] The first lower clamp block 5 and the first upper clamp block 4 cooperate with each other to clamp the reinforcing plate body 6 and the first mounting bracket 1 at the first end of the reinforcing plate body 6. In the clamped state, the first lower clamp block 5 is located below the reinforcing plate body 6 and fits with the bottom surface of the reinforcing plate body 6, and the first upper clamp block 4 is located above the first mounting bracket 1 and fits with the surface of the first mounting bracket 1, so as to fix the first mounting bracket 1 on the top surface of the reinforcing plate body 6. One end of the first clamp arm 3 is rotatably connected to the first driver, and the first upper clamp block 4 is fixedly arranged on the first clamp arm 3. The first clamp arm 3 is rotatably connected to the first clamp bracket 2 at a position between the two ends. When the first driver is working, it can drive the first clamp arm 3 to flip up and down, thereby realizing the clamping and releasing of the reinforcing plate body 6. The first driver is a cylinder or a hydraulic cylinder, and the piston rod of the first driver is rotatably connected to the first clamp arm 3, and the cylinder body of the first driver is rotatably connected to the first clamp bracket 2.

[0031] like Figures 1 to 3 As shown, a plurality of first upper clamp blocks 4 and first lower clamp blocks 5 are provided, and each first upper clamp block 4 is respectively matched with a first lower clamp block 5, and the reinforcing plate body 6 and a first mounting bracket 1 are respectively clamped at the first end of the reinforcing plate body 6 to ensure that the reinforcing plate body 6 and the first mounting bracket 1 are reliably fixed, and the number of the first upper clamp blocks 4 and the first lower clamp blocks 5 is the same as the number of the first mounting brackets 1, and all the first mounting brackets 1 are arranged in sequence along the length direction of the reinforcing plate body 6.

[0032] like Figures 1 to 3 As shown, in this embodiment, two first upper clamping blocks 4 and two first lower clamping blocks 5 are provided.

[0033] like Figures 1 to 3 As shown, the first clamping device also includes a first auxiliary upper clamping block 8 provided on the first clamping arm 3 and a first auxiliary lower clamping block 9 provided on the first clamping bracket 2 and cooperating with the first auxiliary upper clamping block 8 to clamp the first end of the reinforcing plate body 6. The first auxiliary upper clamping block 8 is fixedly provided at one end of the first clamping arm 3, and the first auxiliary lower clamping block 9 is fixedly provided on the first clamping bracket 2. In the clamping state, the first auxiliary lower clamping block 9 is located below the reinforcing plate body 6 and fits with the bottom surface of the reinforcing plate body 6, and the first auxiliary upper clamping block 8 is located above the reinforcing plate body 6 and fits with the top surface of the reinforcing plate body 6 to clamp the reinforcing plate body 6. The first auxiliary upper clamping block 8 is located close to the first mounting bracket 1, and the first auxiliary upper clamping block 8 and the first upper clamping block 4 are distributed at different positions, so that the first end of the reinforcing plate body 6 can be clamped at multiple positions of the reinforcing plate body 6 to reduce welding deformation.

[0034] like Figure 1 , Figure 2 and Figure 4As shown, the second clamping device includes a second clamping bracket 10 vertically arranged on the base, a second clamping arm 11 rotatably arranged on the second clamping bracket 10, a second upper clamping block 12, a second lower clamping block 13 cooperating with the second upper clamping block 12 to clamp the first mounting bracket 1, a second driver arranged on the second clamping bracket 10 and used to provide a driving force for the second clamping arm 11 to rotate, a first driving mechanism arranged on the second clamping arm 11 and used to control the second lower clamping block 13 to move linearly, and a second driving mechanism arranged on the first driving mechanism and used to control the second upper clamping block 12 to rotate. The rotation centerline of the second clamping arm 11 is parallel to the horizontal direction, the second locating pin is fixedly arranged on the second lower clamping block 13, and a locating hole for inserting the second locating pin is arranged at the upper end of the first mounting bracket 1, and the second locating pin is used to position the first mounting bracket 1.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, a plurality of second upper clamp blocks 12 and second lower clamp blocks 13 are provided, and each second upper clamp block 12 cooperates with a second lower clamp block 13 to clamp a first mounting bracket 1, ensuring that the first mounting bracket 1 is reliably fixed and accurately positioned, and the number of second upper clamp blocks 12 and second lower clamp blocks 13 is the same as the number of first mounting brackets 1.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, two second upper clamping blocks 12 and two second lower clamping blocks 13 are provided.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, the first driving mechanism includes a first cylinder 14 and a first mounting plate 35 connected to the first cylinder 14, the second lower clamping block 13 and the second driving mechanism are arranged on the first mounting plate 35, and the first cylinder 14 is fixedly arranged on the second clamping arm 11. The first cylinder 14 is used to control the first mounting plate 35 and the second lower clamping block 13 thereon and the second driving mechanism to move linearly synchronously, and control the second lower clamping block 13 to contact and separate from the first mounting bracket 1. The first cylinder 14 controls the first mounting plate 35 and the second lower clamping block 13 to move in a direction parallel to the axis of the second positioning pin.

[0038] like Figure 1 , Figure 2 and Figure 4As shown, the second driving mechanism includes a second cylinder 15 and a second mounting plate 16 connected to the second cylinder 15, the second cylinder 15 is arranged on the first mounting plate 35, and the second upper clamping block 12 is arranged on the second mounting plate 16. The cylinder body of the first cylinder 14 is fixedly connected to the second clamping arm 11, the first mounting plate 35 is fixedly connected to the piston rod of the first cylinder 14, the cylinder body of the second cylinder 15 is fixedly connected to the first mounting plate 35, the second mounting plate 16 is rotatably connected to the piston rod of the second cylinder 15, and the rotation center line of the second mounting plate 16 is parallel to the rotation center line of the second clamping arm 11. The second driving mechanism also includes a first support rod 17, one end of the first support rod 17 is rotatably connected to the cylinder body of the second cylinder 15, the other end of the second support rod 33 is rotatably connected to the second mounting plate 16, and the second support rod 33 provides support for the second mounting plate 16. The second upper clamping block 12 is fixedly arranged on the second mounting plate 16 . When the second cylinder 15 is extended or retracted, the second mounting plate 16 and the second upper clamping block 12 thereon are driven to rotate synchronously, and the second upper clamping block 12 is controlled to contact and separate from the surface of the first mounting bracket 1 .

[0039] When it is necessary to clamp the first mounting bracket 1, the second driver is first extended to rotate the second clamping arm 11 until the second clamping arm 11 is in place, the second driver stops working, and then the first cylinder 14 is extended to move the second lower clamping block 13 toward the first mounting bracket 1 until the second lower clamping block 13 contacts the first mounting bracket 1, and the second positioning pin is inserted into the positioning hole at the upper end of the first mounting bracket 1 to preliminarily position the first mounting bracket 1, and then the second cylinder 15 is extended to rotate the second mounting plate 16 and the second upper clamping block 12 downward until the second upper clamping block 12 contacts the surface of the first mounting bracket 1, and the second upper clamping block 12 cooperates with the second lower clamping block 13 to clamp the upper ends of the two first mounting brackets 1 at the same time, thereby realizing the positioning and fixation of the two first mounting brackets 1 at the same time.

[0040] like Figure 1 , Figure 2 and Figure 4As shown, the second clamping device also includes a first positioning block for positioning the first mounting bracket 1, the first positioning blocks are distributed on opposite sides of the second upper clamping block 12, and the first positioning blocks are arranged on the second mounting plate 16 of the second driving mechanism. The first positioning blocks distributed on opposite sides of the second upper clamping block 12 are used to limit the first mounting bracket 1 in the first direction, and all the first positioning blocks are on the same straight line parallel to the first direction. The first positioning blocks are distributed on opposite sides of the upper end of each first mounting bracket 1, and the distance between the lower end of the first positioning block and the lower base is smaller than the bottom surface of the second upper clamping block 12 (the bottom surface is used for clamping The distance between the first upper clamping block 12 and the lower base, when the second mounting plate 16 rotates downward, the first positioning block will contact the first mounting bracket 1 before the second upper clamping block 12, and the second positioning pin cooperates with the first positioning block to jointly realize the positioning of the first mounting bracket 1, and finally the second upper clamping block 12 presses down on the top surface of the first mounting bracket 1 to realize the final fixation of the first mounting bracket 1. This structure can ensure that the position of the first mounting bracket 1 is more accurate, prevent the first mounting bracket 1 from rotating, and reduce the position movement and welding deformation of the first mounting bracket 1 during the welding process between the first mounting bracket 1 and the top side beam body. In the clamping state, the distance between the lower end of the first positioning block and the lower top beam body is smaller than the distance between the bottom surface of the second upper clamping block 12 (the bottom surface is the surface for contacting the first mounting bracket 1 when clamping) and the lower top beam body, and the first positioning block extends a distance below the second upper clamping block 12, which can play a certain protective role for the first mounting bracket 1. Moreover, the lower end of the first mounting bracket 1 needs to be welded to the top beam plate body. The first mounting bracket 1 is positioned by setting a first positioning block and a second positioning pin at the upper end of the first mounting bracket 1. There is a large space between the components of the second clamping device and the lower end of the first mounting bracket 1, which is convenient for the welding tongs to perform welding work and is not easy to collide with the welding tongs.

[0041] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, four first positioning blocks are provided in total, and two first positioning blocks are provided on both sides of each second upper clamping block 12 .

[0042] Preferably, the first positioning block is connected to the second mounting plate 16 by a fastener consisting of a bolt and a nut, the first positioning block and the second mounting plate 16 have a through hole for the bolt to pass through, a gasket is provided between the first positioning block and the second mounting plate 16, the gasket is clamped between the first positioning block and the second mounting plate 16 and has a through hole for the bolt to pass through, at least one gasket is provided and the number of gaskets is adjustable, the first positioning block and the second mounting plate 16 are connected by fasteners, and the number of gaskets is convenient for adjusting, and by adjusting the number of gaskets provided between the first positioning block and the second mounting plate 16, the distance between the two first positioning blocks distributed on the opposite sides of the second upper clamping block 12 can be adjusted, which is suitable for positioning the first mounting bracket 1 of different widths and can improve the versatility of the clamp.

[0043] like Figure 1 , Figure 2 and Figure 5 As shown, the third clamping device includes a third clamping bracket 18 vertically arranged on the base, a third clamping arm 19 rotatably arranged on the third clamping bracket 18, a third upper clamping block 20 arranged on the third clamping arm 19, a third lower clamping block 21 cooperating with the third upper clamping block 20 to clamp the second end of the reinforcement plate body 6 and the second mounting bracket 34, and a third driver 22 arranged on the third clamping bracket 18 and used for providing a driving force for the third clamping arm 19 to rotate. The rotation centerline of the third clamping arm 19 is parallel to the first direction, the fourth positioning pin is vertically arranged on the third clamping bracket 18, and the second end of the reinforcement plate body 6 is provided with a positioning hole for the fourth positioning pin to be embedded.

[0044] The third lower clamp block 21 and the third upper clamp block 20 cooperate to clamp the reinforcing plate body 6 and the second mounting bracket 34 at the second end of the reinforcing plate body 6. In the clamping state, the third lower clamp block 21 is located below the reinforcing plate body 6 and fits with the bottom surface of the reinforcing plate body 6, and the third upper clamp block 20 is located above the second mounting bracket 34 and fits with the surface of the second mounting bracket 34, so as to fix the second mounting bracket 34 on the top surface of the reinforcing plate body 6. One end of the third clamping arm 19 is rotatably connected to the third driver 22, and the third upper clamp block 20 is fixedly arranged on the third clamping arm 19. The third clamping arm 19 is rotatably connected to the third clamping bracket 18 at the position between the two ends. When the third driver 22 is working, it can drive the third clamping arm 19 to flip up and down, thereby realizing the clamping and releasing of the reinforcing plate body 6. The third driver 22 is a cylinder or a hydraulic cylinder, and the piston rod of the third driver 22 is rotatably connected to the third clamping arm 19, and the cylinder body of the third driver 22 is rotatably connected to the third clamping bracket 18.

[0045] like Figure 1 , Figure 2 and Figure 5As shown, a plurality of third upper clamp blocks 20 and third lower clamp blocks 21 are provided, and each third upper clamp block 20 is respectively matched with a third lower clamp block 21, and the reinforcing plate body 6 and a second mounting bracket 34 are respectively clamped at the second end of the reinforcing plate body 6 to ensure that the reinforcing plate body 6 and the second mounting bracket 34 are reliably fixed. The number of third upper clamp blocks 20 and third lower clamp blocks 21 is the same as the number of second mounting brackets 34, and all second mounting brackets 34 are arranged in sequence along the length direction of the reinforcing plate body 6.

[0046] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, two third upper clamping blocks 20 and two third lower clamping blocks 21 are provided.

[0047] like Figure 1 , Figure 2 and Figure 5 As shown, the third clamping device also includes a second auxiliary upper clamping block 23 disposed on the third clamping arm 19 and a second auxiliary lower clamping block 24 disposed on the third clamping bracket 18 and cooperating with the second auxiliary upper clamping block 23 to clamp the second end of the reinforcing plate body 6. The second auxiliary upper clamping block 23 is fixedly disposed at one end of the third clamping arm 19, and the second auxiliary lower clamping block 24 is fixedly disposed on the third clamping bracket 18. In the clamping state, the second auxiliary lower clamping block 24 is located below the reinforcing plate body 6 and fits with the bottom surface of the reinforcing plate body 6, and the second auxiliary upper clamping block 23 is located above the reinforcing plate body 6 and fits with the top surface of the reinforcing plate body 6 to clamp the reinforcing plate body 6. The second auxiliary upper clamping block 23 is located close to the second mounting bracket 34, and the second auxiliary upper clamping block 23 and the third upper clamping block 20 are distributed at different positions, so that the second end of the reinforcing plate body 6 can be clamped at multiple positions of the reinforcing plate body 6 to reduce welding deformation.

[0048] like Figure 1 , Figure 2 and Figure 6 As shown, the fourth clamping device includes a fourth clamping bracket 25 vertically arranged on the base, a fourth clamping arm 26 rotatably arranged on the fourth clamping bracket 25, a fourth upper clamping block 27, a fourth lower clamping block 28 cooperating with the fourth upper clamping block 27 to clamp the second mounting bracket 34, a fourth driver arranged on the fourth clamping bracket 25 and used to provide a driving force for the fourth clamping arm 26 to rotate, a third driving mechanism arranged on the fourth clamping arm 26 and used to control the fourth lower clamping block 28 to move linearly, and a fourth driving mechanism arranged on the third driving mechanism and used to control the fourth upper clamping block 27 to rotate. The rotation centerline of the fourth clamping arm 26 is parallel to the horizontal direction, the second positioning pin is fixedly arranged on the fourth lower clamping block 28, and a positioning hole for inserting the third positioning pin is arranged at the upper end of the second mounting bracket 34. The third positioning pin is used to position the second mounting bracket 34.

[0049] like Figure 1 , Figure 2 and Figure 6 As shown, multiple fourth upper clamp blocks 27 and fourth lower clamp blocks 28 are provided, and each fourth upper clamp block 27 cooperates with a fourth lower clamp block 28 to clamp a second mounting bracket 34 to ensure that the second mounting bracket 34 is reliably fixed and accurately positioned. The number of fourth upper clamp blocks 27 and fourth lower clamp blocks 28 is the same as the number of second mounting brackets 34.

[0050] like Figure 1 , Figure 2 and Figure 6 As shown, in this embodiment, two fourth upper clamping blocks 27 and two fourth lower clamping blocks 28 are provided.

[0051] like Figure 1 , Figure 2 and Figure 6 As shown, the third driving mechanism includes a third cylinder 29 and a third mounting plate 30 connected to the third cylinder 29, the fourth lower clamp 28 and the fourth driving mechanism are arranged on the third mounting plate 30, and the third cylinder 29 is fixedly arranged on the fourth clamping arm 26. The third cylinder 29 is used to control the third mounting plate 30 and the fourth lower clamp 28 and the fourth driving mechanism thereon to move linearly synchronously, and control the fourth lower clamp 28 to contact and separate from the second mounting bracket 34. The third cylinder 29 controls the third mounting plate 30 and the fourth lower clamp 28 to move in a direction parallel to the axis of the third locating pin.

[0052] like Figure 1 , Figure 2 and Figure 6 As shown, the fourth driving mechanism includes a fourth cylinder 31 and a fourth mounting plate 32 connected to the fourth cylinder 31, the fourth cylinder 31 is arranged on the third mounting plate 30, and the fourth upper clamping block 27 is arranged on the fourth mounting plate 32. The cylinder body of the third cylinder 29 is fixedly connected to the fourth clamping arm 26, the third mounting plate 30 is fixedly connected to the piston rod of the third cylinder 29, the cylinder body of the fourth cylinder 31 is fixedly connected to the third mounting plate 30, the fourth mounting plate 32 is rotatably connected to the piston rod of the fourth cylinder 31, and the rotation center line of the fourth mounting plate 32 is parallel to the rotation center line of the fourth clamping arm 26. The fourth driving mechanism also includes a first support rod 17, one end of the first support rod 17 is rotatably connected to the cylinder body of the fourth cylinder 31, the other end of the second support rod 33 is rotatably connected to the fourth mounting plate 32, and the second support rod 33 provides support for the fourth mounting plate 32. The fourth upper clamping block 27 is fixedly arranged on the fourth mounting plate 32 . When the fourth cylinder 31 is extended or retracted, the fourth mounting plate 32 and the fourth upper clamping block 27 thereon are driven to rotate synchronously, and the fourth upper clamping block 27 is controlled to contact and separate with the surface of the second mounting bracket 34 .

[0053] When it is necessary to clamp the second mounting bracket 34, the fourth driver is first extended to rotate the fourth clamping arm 26. After the fourth clamping arm 26 is in place, the fourth driver stops working, and then the third cylinder 29 is extended to move the fourth lower clamping block 28 toward the second mounting bracket 34 until the fourth lower clamping block 28 contacts the second mounting bracket 34. The third positioning pin is inserted into the positioning hole at the upper end of the second mounting bracket 34 to preliminarily position the second mounting bracket 34. Then the fourth cylinder 31 is extended to rotate the fourth mounting plate 32 and the fourth upper clamping block 27 downward until the fourth upper clamping block 27 contacts the surface of the second mounting bracket 34. The fourth upper clamping block 27 cooperates with the fourth lower clamping block 28 to clamp the upper ends of the two second mounting brackets 34 at the same time, thereby realizing the positioning and fixation of the two second mounting brackets 34.

[0054] like Figure 1 , Figure 2 and Figure 6As shown, the fourth clamping device also includes a second positioning block for positioning the second mounting bracket 34, the second positioning blocks are distributed on the opposite sides of the fourth upper clamping block 27, and the second positioning blocks are arranged on the fourth mounting plate 32 of the fourth driving mechanism. The second positioning blocks distributed on the opposite sides of the fourth upper clamping block 27 are used to limit the second mounting bracket 34 in the first direction, and all the second positioning blocks are on the same straight line parallel to the first direction. The second positioning blocks are distributed on the opposite sides of the upper end of each second mounting bracket 34, and the distance between the lower end of the second positioning block and the lower base is smaller than the bottom surface of the fourth upper clamping block 27 (the bottom surface is used for The fourth mounting plate 32 is configured to have a distance between the bottom end of the second positioning block and the bottom base. When the fourth mounting plate 32 rotates downward, the second positioning block will contact the second mounting bracket 34 before the fourth upper clamping block 27. The third positioning pin cooperates with the second positioning block to jointly realize the positioning of the second mounting bracket 34. Finally, the fourth upper clamping block 27 is pressed down on the top surface of the second mounting bracket 34 to realize the final fixation of the second mounting bracket 34. This structure can ensure that the position of the second mounting bracket 34 is more accurate, so that the position movement and welding deformation of the second mounting bracket 34 are reduced during the welding process between the second mounting bracket 34 and the top side beam body. In the clamping state, the distance between the lower end of the second positioning block and the bottom top beam body is smaller than the distance between the bottom surface of the fourth upper clamping block 27 (the bottom surface is the surface for contacting the second mounting bracket 34 when clamping) and the bottom top beam body. The second positioning block extends a distance below the fourth upper clamping block 27, which can play a certain protective role for the second mounting bracket 34. Moreover, the lower end of the second mounting bracket 34 needs to be welded to the top beam plate body. The second mounting bracket 34 is positioned by setting a second positioning block and a third positioning pin at the upper end of the second mounting bracket 34 to prevent the second mounting bracket 34 from rotating. There is a large space between the components of the fourth clamping device and the lower end of the second mounting bracket 34, which is convenient for the welding tongs to perform welding work and is not easy to collide with the welding tongs.

[0055] like Figure 1 , Figure 2 and Figure 6 As shown, in this embodiment, four second positioning blocks are provided in total, and two second positioning blocks are provided on both sides of each fourth upper clamping block 27 .

[0056] Preferably, the second positioning block is connected to the fourth mounting plate 32 by a fastener consisting of a bolt and a nut, the second positioning block and the fourth mounting plate 32 have a through hole for the bolt to pass through, a gasket is provided between the second positioning block and the fourth mounting plate 32, the gasket is clamped between the second positioning block and the fourth mounting plate 32 and the gasket has a through hole for the bolt to pass through, at least one gasket is provided and the number of gaskets is adjustable, the second positioning block and the fourth mounting plate 32 are connected by fasteners, and the number of gaskets is convenient for adjusting, and by adjusting the number of gaskets provided between the second positioning block and the fourth mounting plate 32, the distance between the two second positioning blocks distributed on the opposite sides of the fourth upper clamping block 27 can be adjusted, which is suitable for realizing the positioning of second mounting brackets 34 of different widths, and can improve the versatility of the clamp.

[0057] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. Automobile top side beam reinforcement plate assembly welding fixture, characterized by: It includes a first clamping device for clamping the first end of the reinforcing plate body and the first mounting bracket, a second clamping device for clamping the first mounting bracket, a third clamping device for clamping the second end of the reinforcing plate body and the second mounting bracket, and a fourth clamping device for clamping the second mounting bracket. The first clamping device and the second clamping device are arranged relative to each other, and the third clamping device and the fourth clamping device are arranged relative to each other. The first clamping device is provided with a first positioning pin for positioning the reinforcing plate body, the second clamping device is provided with a second positioning pin for positioning the first mounting bracket, and the fourth clamping device is provided with a third positioning pin for positioning the second mounting bracket.

2. The welding fixture for the automobile top side beam reinforcement plate assembly according to claim 1 is characterized in that: The first clamping device includes a first clamping bracket, a first clamping arm rotatably arranged on the first clamping bracket, a first upper clamping block arranged on the first clamping arm, and a first lower clamping block cooperating with the first upper clamping block to clamp the first end of the reinforcement plate body and the first mounting bracket. The rotation centerline of the first clamping arm is parallel to the first direction, and the first positioning pin is arranged on the first clamping bracket.

3. The welding fixture for the automobile top side beam reinforcement plate assembly according to claim 2 is characterized in that: The first clamping device further comprises a first auxiliary upper clamping block arranged on the first clamping arm and a first auxiliary lower clamping block arranged on the first clamping bracket and cooperating with the first auxiliary upper clamping block to clamp the first end of the reinforcing plate body.

4. The welding fixture for the automobile top side beam reinforcement plate assembly according to any one of claims 1 to 3, characterized in that: The second clamping device includes a second clamping bracket, a second clamping arm rotatably arranged on the second clamping bracket, a second upper clamping block, a second lower clamping block cooperating with the second upper clamping block to clamp the first mounting bracket, a first driving mechanism arranged on the second clamping arm and used to control the second lower clamping block to move linearly, a second driving mechanism arranged on the first driving mechanism and used to control the second upper clamping block to rotate, and the second positioning pin is arranged on the second lower clamping block.

5. The welding fixture for the automobile top side beam reinforcement plate assembly according to claim 4 is characterized in that: The first driving mechanism includes a first cylinder and a first mounting plate connected to the first cylinder, the second lower clamping block and the second driving mechanism are arranged on the first mounting plate, and the first cylinder is arranged on the second clamping arm.

6. The welding fixture for the automobile top side beam reinforcement plate assembly according to claim 5 is characterized in that: The second driving mechanism includes a second cylinder and a second mounting plate connected to the second cylinder. The second cylinder is arranged on the first mounting plate, and the second upper clamping block is arranged on the second mounting plate.

7. The welding fixture for the automobile roof side beam reinforcement plate assembly according to any one of claims 1 to 3, characterized in that: The third clamping device includes a third clamping bracket, a third clamping arm rotatably arranged on the third clamping bracket, a third upper clamping block arranged on the third clamping arm, and a third lower clamping block cooperating with the third upper clamping block to clamp the second mounting bracket and the second mounting bracket.

8. The welding fixture for the automobile top side beam reinforcement plate assembly according to any one of claims 1 to 3, characterized in that: The fourth clamping device includes a fourth clamping bracket, a fourth clamping arm rotatably arranged on the fourth clamping bracket, a fourth upper clamping block, a fourth lower clamping block cooperating with the fourth upper clamping block to clamp the second mounting bracket, a third driving mechanism arranged on the fourth clamping arm and used to control the fourth lower clamping block to move linearly, and a fourth driving mechanism arranged on the third driving mechanism and used to control the fourth upper clamping block to rotate, and the third positioning pin is arranged on the fourth lower clamping block.

9. The welding fixture for the automobile roof side beam reinforcement plate assembly according to claim 8, characterized in that: The third driving mechanism comprises a third cylinder and a third mounting plate connected to the third cylinder, the fourth lower clamping block and the fourth driving mechanism are arranged on the third mounting plate, and the third cylinder is arranged on the fourth clamping arm.

10. The welding fixture for the automobile roof side beam reinforcement plate assembly according to claim 9, characterized in that: The fourth driving mechanism comprises a fourth cylinder and a fourth mounting plate connected to the fourth cylinder, the fourth cylinder is arranged on the third mounting plate, and the fourth upper clamping block is arranged on the fourth mounting plate.

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