Box friction welding anti-deformation clamp

Abstract

The utility model provides a box body friction welding anti-deformation clamp for welding a box body of an automobile electric control box. The box body friction welding anti-deformation clamp comprises a bottom plate, a positioning seat, a pressing mechanism and a profiling block. The positioning seat is connected with the bottom plate, and the electric cabinet is placed on the positioning seat and connected with the positioning seat. The pressing mechanism comprises a plurality of clamping assemblies, the clamping assemblies are arranged along the periphery of the positioning seat, each clamping assembly is fixedly installed on the bottom plate, and the pressing ends of the clamping assemblies abut against the top face of the electric cabinet. The profiling block is installed on the positioning base and located in the electric control box, a water cooling channel is formed in the profiling block, a water inlet hole and a water outlet hole are formed in the bottom of the profiling block, and the water inlet hole and the water outlet hole are both communicated with the water cooling channel.

Description

Technical Field

[0001] The present disclosure relates to the technical field of welding fixtures, and in particular to a box friction welding anti-deformation fixture. Background Art

[0002] With the rapid development of new energy vehicles, friction stir welding (FSW) has become widely used in the welding of aluminum alloy battery trays, motor housings, and electronic control boxes for these vehicles. Friction welding utilizes a specially shaped stirrer, which rotates and inserts into the parts being welded. The stirrer then moves forward along the weld interface. This process heats the material to a thermoplastic state through stirring and friction. Driven by the high-speed rotation of the stirrer, the plastic material is transferred from front to back around the stirrer. Simultaneously, the stirrer squeezes the weld metal, creating a dense, solid-phase bond between the metals through diffusion bonding under the combined thermal and mechanical effects of the stirrer.

[0003] However, during the friction welding process, due to the high temperature generated, the electric control box and the clamp are prone to deformation, thereby affecting the fixing effect of the clamp and resulting in a high scrap rate of the electric control box. Utility Model Content

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a box friction welding anti-deformation fixture with better heat dissipation effect.

[0005] The purpose of this disclosure is achieved through the following technical solutions:

[0006] A box friction welding anti-deformation fixture for welding an automobile electric control box comprises:

[0007] base plate;

[0008] A positioning seat, the positioning seat is connected to the base plate, and the electric control box is placed on the positioning seat and connected to the positioning seat;

[0009] A clamping mechanism, comprising a plurality of clamping assemblies, the plurality of clamping assemblies being arranged along the periphery of the positioning seat, each of the clamping assemblies being mounted and fixed to the base plate, with a pressing end of the clamping assembly abutting against the top surface of the electric control box;

[0010] A profiling block is installed on the positioning seat, the profiling block is located in the electric control box, the profiling block is provided with a water cooling channel, and a water inlet hole and a water outlet hole are provided at the bottom of the profiling block, and the water inlet hole and the water outlet hole are both connected to the water cooling channel.

[0011] In one embodiment, the clamping mechanism includes a pre-stressing component, which is arranged on one side of the positioning seat. The pre-stressing component includes a pre-stressing cylinder and a pre-stressing wall. The pre-stressing cylinder is fixedly connected to the base plate, one end of the pre-stressing wall is connected to the output end of the pre-stressing cylinder, and the pressing end of the pre-stressing wall abuts against the top surface of the electrical control box.

[0012] In one embodiment, a step for avoiding air is provided on one side of the positioning seat.

[0013] In one embodiment, the clamping mechanism further includes a first clamping assembly and a second clamping assembly, the first clamping assembly includes a first cylinder and a first pressure rod, one end of the first pressure rod is connected to the output end of the first cylinder, and the pressing end of the first pressure rod abuts against the cover plate, the second clamping assembly includes a second cylinder and a second pressure rod, the second pressure rod is connected to the output end of the second cylinder, and the pressing end of the second pressure rod abuts against the cover plate.

[0014] In one embodiment, each of the clamping assemblies includes a clamping cylinder and a pressure wall, the clamping cylinder is fixedly connected to the base plate, one end of the pressure wall is connected to the output end of the clamping cylinder, and the pressing end of the pressure wall abuts against the top surface of the electrical control box.

[0015] In one embodiment, the positioning seat is provided with a positioning hole, and the box friction welding anti-deformation fixture further includes a positioning assembly, the positioning assembly includes a plurality of positioning blocks, each of the positioning blocks is provided with a fixing hole and a avoidance groove, and the positioning hole is connected to the fixing hole.

[0016] In one embodiment, the positioning seat is provided with a positioning hole, and the box friction welding anti-deformation clamp also includes a positioning assembly, the positioning assembly includes a positioning pin and a positioning pin mounting block, the positioning pin is arranged at one end of the positioning pin mounting block, and the other end of the positioning pin mounting block is connected to the positioning seat.

[0017] In one embodiment, the positioning seat includes a plurality of support plates and contour plates, each of the support plates is connected to the base plate, and the contour plate is connected to an end of the support plate away from the base plate.

[0018] In one embodiment, the positioning seat is provided with a plurality of water holes, and the water holes are connected with the corresponding water inlet holes or the corresponding water outlet holes.

[0019] In one embodiment, the shaping block includes a shaping block body and a connecting plate, the water cooling channel is opened in the shaping block body, the water inlet hole and the water outlet hole are opened at the bottom of the connecting plate, the water inlet hole and the water outlet hole are both connected to the water cooling channel, and the connecting plate is connected to the positioning seat.

[0020] Compared with the prior art, the present disclosure has at least the following advantages:

[0021] 1. The box friction welding anti-deformation fixture fastens the box and cover through a clamping mechanism to prevent the electric control box and cover from shifting during the welding process, thereby improving the fixing effect of the fixture.

[0022] 2. The anti-deformation fixture for box friction welding is equipped with a profiling block with a water-cooling channel below the welding processing position. This can take away a large amount of heat, improve the heat dissipation performance of the profiling block, and avoid the heat generated during the welding process causing deformation of the fixture or the electric control box, thereby reducing the scrap rate of the electric control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 Schematic diagram of a box friction welding anti-deformation fixture according to one embodiment;

[0025] Figure 2 for Figure 1 Schematic diagram of another state of the box friction welding anti-deformation fixture;

[0026] Figure 3 for Figure 1 Schematic diagram of the contour block of the box friction welding anti-deformation fixture shown;

[0027] Figure 4 for Figure 3 a cross-sectional view of the contoured block shown;

[0028] Figure 5 for Figure 1 A schematic diagram of the first pressing assembly of the box friction welding anti-deformation fixture is shown;

[0029] Figure 6 for Figure 1 Schematic diagram of the contour plate of the anti-deformation fixture for friction welding of the box shown;

[0030] Figure 7 for Figure 6A partial enlarged schematic diagram of the profiling plate shown;

[0031] Figure 8 for Figure 1 Schematic diagram of the pre-pressing assembly of the box friction welding anti-deformation fixture shown;

[0032] Figure 9 for Figure 1 Schematic diagram of the positioning block of the box friction welding anti-deformation fixture shown. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0037] See also Figures 1 to 9The anti-deformation fixture 10 for friction welding of a box body according to one embodiment of the present invention comprises a base plate 100, a positioning seat 200, a clamping mechanism 300, and a contour block 400. The positioning seat 200 is connected to the base plate 100, and the electric control box 20 is placed on and connected to the positioning seat 200. The clamping mechanism 300 includes a plurality of clamping assemblies 310 arranged along the periphery of the positioning seat 200. Each clamping assembly 310 is mounted and fixed to the base plate 100, with the pressing end of the clamping assembly 310 contacting the top surface of the electric control box 20. The profiling block 400 is installed on the positioning seat 200 and is located in the electric control box 20. The profiling block 400 is provided with a water cooling channel 410. The bottom of the profiling block 400 is provided with a water inlet hole 401 and a water outlet hole 402. The water inlet hole 401 and the water outlet hole 402 are both connected to the water cooling channel 410.

[0038] In this embodiment, the anti-deformation fixture 10 for friction welding of the housing fastens the housing and cover plate 30 using a clamping mechanism 300, preventing displacement of the electrical control box 20 and cover plate 30 during welding, thereby enhancing the fixture's securing effectiveness. Furthermore, the fixture 10 for friction welding of the housing fastens the housing and cover plate 30 using a clamping mechanism 300. This prevents displacement of the electrical control box 20 and cover plate 30 during welding, thereby enhancing the fixture's securing effectiveness. Furthermore, the fixture 10 for friction welding of the housing fastens the housing 20 and cover plate 30 using a shaped block 400 with a water-cooling channel 410 below the welding position. This removes a significant amount of heat, improving the block's heat dissipation performance and preventing deformation of the fixture or electrical control box 20 caused by the heat generated during welding, thereby reducing the scrap rate of the electrical control box 20.

[0039] like Figure 1 、 Figure 2 and Figure 6 As shown, in this embodiment, the housing of the electric control box 20 has a boss structure. However, during friction welding, the upward deformation of the boss area of ​​the housing of the electric control box 20 is relatively large. For this reason, in one embodiment, the clamping mechanism 300 includes a pre-stressing component 320, which is arranged on the side of the positioning seat 200 close to the boss of the housing of the electric control box 20. The pre-stressing component 320 includes a pre-stressing cylinder 321 and a pre-stressing pressure wall 322. The pre-stressing cylinder 321 is fixedly connected to the base plate 100, and one end of the pre-stressing pressure wall 322 is connected to the output end of the pre-stressing cylinder 321. The holding end of the pre-stressing pressure wall 322 abuts against the top surface of the electric control box 20. Specifically, in this embodiment, there are two pre-stressing components 320, and the two pre-stressing components 320 provide a downward pre-stressing force to the boss area of ​​the housing of the electric control box 20, thereby suppressing the deformation of the boss area of ​​the electric control box 20 during welding, improving the welding quality, and thus reducing the scrap rate of the electric control box 20. In addition, by applying the preload, thermal deformation of the boss region of the electric control box 20 caused by high temperature can be reduced.

[0040] like Figure 1As shown, in one embodiment, the positioning seat 200 is provided with a clearance step 201 on one side corresponding to the boss area of ​​the electric control box 20. It can be understood that the clearance step 201 works together with the pre-pressing component 320, and the clearance step 201 is a part of the function of the pre-pressing component 320. An appropriate gap is formed between the bottom of the boss area of ​​the electric control box 20 and the positioning seat 200, which serves as a deformation space for the boss area of ​​the electric control box 20. This allows the boss area of ​​the electric control box 20 to effectively deform downward under the downward pre-pressure applied by the pre-pressing component 320, thereby preventing upward deformation caused by welding heat, thereby improving welding quality and reducing scrap rate.

[0041] like Figure 1 and Figure 5 As shown, in one embodiment, the clamping mechanism 300 also includes a first clamping assembly 330 and a second clamping assembly 340, the first clamping assembly 330 includes a first cylinder 331 and a first pressure rod 332, one end of the first pressure rod 332 is connected to the output end of the first cylinder 331, and the pressing end of the first pressure rod 332 abuts against the cover plate 30, the second clamping assembly 340 includes a second cylinder 341 and a second pressure rod 342, the second pressure rod 342 is connected to the output end of the second cylinder 341, and the second pressure rod 342 abuts against the cover plate 30.

[0042] Specifically, the first pressing rod 332 of the first pressing assembly 330 acts between the second position and the third position, and the second pressing rod 342 of the second pressing assembly 340 acts between the third position and the first position. During the welding process, the stirring head starts welding in a clockwise direction from the first position. When the stirring head reaches the second position, the first pressing assembly 330 releases the cover plate 30; then, the stirring head continues welding until the stirring head reaches the third position. The second pressing assembly 340 releases the cover plate 30, and the first pressing assembly 330 presses the cover plate 30 again. The stirring head returns to the first position, and the welding is completed. The pressing mechanism 300 will press the electric control box 20 body and the cover plate 30 again, and release it after maintaining the pressing state for 10 seconds. It can be understood that the pressing assembly can prevent the cover plate 30 from loosening during the welding process, thereby improving the welding quality and reducing the scrap rate of the electric control box 20.

[0043] Furthermore, in this embodiment, both the first cover plate clamping mechanism 330 and the second cover plate clamping mechanism 340 utilize a lever clamping cylinder and a pressure rod. By adjusting the air pressure and lever length, the clamping requirements at different distances can be met. Furthermore, the lever clamping cylinder can quickly complete the clamping and releasing actions, preventing the pressure rod from interfering with the agitator head, reducing equipment downtime and improving production efficiency.

[0044] like Figure 1 、 Figure 2 and Figures 5 to 7As shown, in one embodiment, each clamping assembly 310 includes a clamping cylinder 311 and a pressure wall 312. The clamping cylinder 311 is fixedly connected to the base plate 100, one end of the pressure wall 312 is connected to the output end of the clamping cylinder 311, and the pressing end of the pressure wall 312 abuts the top surface of the electric control box 20. It can be understood that the clamping assemblies 310 are evenly arranged along the periphery of the positioning seat 200, so that the pressure applied by the clamping assemblies 310 on the electric control box 20 is evenly distributed, thereby preventing deformation of the electric control box 20 during welding and improving welding quality. At the same time, because the clamping assemblies 310 can continuously apply pre-pressure, it helps to improve the strength and uniformity of the weld during the welding process, thereby reducing welding defects, improving welding quality, and reducing scrap rate.

[0045] Furthermore, the automated clamping assembly 310 makes the movement of the clamping assembly 310 faster, thereby improving production efficiency.

[0046] like Figure 2 and Figure 9 As shown, the periphery of the electric control box 20 is provided with a connecting portion 21. In one embodiment, the positioning seat 200 is provided with a positioning hole 202. The box friction welding anti-deformation fixture 10 further includes a positioning assembly 500. The positioning assembly 500 includes a plurality of positioning blocks 510. Each positioning block 510 is provided with a fixing hole 511 and a avoiding groove 512. The positioning hole 202 is connected to the fixing hole 511. The connecting portion 21 of the electric control box 20 is located in the avoiding groove 512. Specifically, in this embodiment, the avoiding groove 512 limits the movement of the connecting portion 21, thereby avoiding welding defects caused by displacement of the electric control box 20 during the welding process.

[0047] like Figure 2 As shown, the four corners of the electric control box 20 are provided with mounting portions 22. In one embodiment, the positioning seat 200 is provided with positioning holes 202. The box friction welding anti-deformation fixture 10 also includes a positioning assembly 500. The positioning assembly 500 includes a positioning pin 520 and a positioning pin mounting block 521. The positioning pin 520 is located at one end of the positioning pin mounting block 521. The other end of the positioning pin mounting block 521 is connected to the positioning seat 200. The end of the positioning pin 520 away from the positioning pin mounting block 521 is passed through the mounting portion 22 of the electric control box 20. Specifically, in this embodiment, there are two positioning assemblies 500, and the two positioning assemblies 500 are respectively located at two diagonal positions of the positioning seat 200 to provide more uniform support. Furthermore, the positioning pin 520 is accurately positioned through the hole provided in the electric control box 20 itself to ensure that the electric control box 20 will not be displaced or tilted during the welding process, thereby improving the quality and efficiency of welding.

[0048] like Figure 1 、 Figure 2 and Figure 6As shown, in one embodiment, the positioning base 200 includes a plurality of support plates 210 and a contour plate 220. Each support plate 210 is connected to the base plate 100, and the contour plate 220 is connected to the end of the support plate 210 away from the base plate 100. Specifically, in this embodiment, the support plates 210 are connected to the base plate 100 via screws, facilitating the installation and removal of the positioning base 200. Furthermore, the tight connection between the support plates 210 and the base plate 100 provides reliable support, ensuring the stability of the entire positioning base 200 during operation.

[0049] Furthermore, the cooperation between the profiling plate 220 and the electric control box 20 can effectively improve the positioning accuracy, thereby improving the welding quality.

[0050] like Figure 6 As shown, in one embodiment, the contour plate 220 is provided with a plurality of water holes 221, which are connected to the corresponding water inlet holes 401 or water outlet holes 402. Specifically, in this embodiment, the support plate 210 has a semi-enclosed structure, and the open positioning seat 200 enhances the permeability of the positioning seat 200 and improves the heat dissipation effect; at the same time, it facilitates daily maintenance, inspection, and cleaning of the water cooling pipes. Furthermore, the configuration of the support plate 210 and the layout of the water holes 221 can be flexibly adjusted according to different processing requirements to accommodate various processing scenarios, enhancing the adaptability and flexibility of the equipment.

[0051] like Figure 1 、 Figure 3 and Figure 4 As shown, in one embodiment, the shaped block 400 includes a shaped block body 420 and a connecting plate 430. A water cooling channel 410 is provided within the shaped block body 420. The connecting plate 430 has a water inlet hole 401 and a water outlet hole 402 at the bottom. Both the water inlet hole 401 and the water outlet hole 402 are connected to the water cooling channel 410. The connecting plate 430 is connected to the positioning seat 200. Specifically, in this embodiment, the shaped block 400 has two water cooling channels 410, which are symmetrically arranged. The shaped block 400 has four water holes 221, which correspond to the two water inlet holes 401 and the two water outlet holes 402, respectively. The symmetrical arrangement of the two water cooling channels 410 effectively balances the flow of coolant, ensuring a uniform cooling effect across the entire working area of ​​the shaped block 400, reducing local overheating and preventing overheating in the welding area, further improving welding quality.

[0052] Furthermore, the four water holes 221 can realize the functions of water inlet and outlet at the same time, reducing the residence time of the fluid in the channel, improving the circulation efficiency of the cooling liquid, and thus improving the cooling efficiency.

[0053] It should be noted that in one embodiment, the shaped block 400 is made of copper. Copper has excellent thermal conductivity, and two sets of water-cooling channels 410 are located within the shaped block 400. This allows the shaped block 400 to quickly transfer heat generated thereto, effectively reducing the temperature at the welding location and preventing product deformation. Copper also has excellent machinability and is easy to form and process.

[0054] Compared with the existing technology, the present disclosure has at least the following advantages:

[0055] 1. The box friction welding anti-deformation fixture fastens the box and cover through a clamping mechanism to prevent the electric control box and cover from shifting during the welding process, thereby improving the fixing effect of the fixture.

[0056] 2. The anti-deformation fixture for box friction welding is equipped with a profiling block with a water-cooling channel below the welding processing position. This can take away a large amount of heat, improve the heat dissipation performance of the profiling block, and avoid the heat generated during the welding process causing deformation of the fixture or the electric control box, thereby reducing the scrap rate of the electric control box.

[0057] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.

Claims

1. A box friction welding anti-deformation fixture used for welding automobile electric control boxes, characterized in that: include: base plate; A positioning seat, the positioning seat is connected to the base plate, and the electric control box is placed on the positioning seat and connected to the positioning seat; A clamping mechanism, comprising a plurality of clamping assemblies, the plurality of clamping assemblies being arranged along the periphery of the positioning seat, each of the clamping assemblies being mounted and fixed to the base plate, with a pressing end of the clamping assembly abutting against the top surface of the electric control box; A profiling block is installed on the positioning seat, the profiling block is located in the electric control box, the profiling block is provided with a water cooling channel, and a water inlet hole and a water outlet hole are provided at the bottom of the profiling block, and the water inlet hole and the water outlet hole are both connected to the water cooling channel.

2. The box friction welding anti-deformation fixture according to claim 1, characterized in that: The clamping mechanism includes a pre-stressing component, which is arranged on one side of the positioning seat. The pre-stressing component includes a pre-stressing cylinder and a pre-stressing wall. The pre-stressing cylinder is fixedly connected to the base plate, one end of the pre-stressing wall is connected to the output end of the pre-stressing cylinder, and the pressing end of the pre-stressing wall abuts against the top surface of the electric control box.

3. The anti-deformation fixture for box friction welding according to claim 2, characterized in that: A space-avoiding step is provided on one side of the positioning seat.

4. The box friction welding anti-deformation fixture according to claim 1, characterized in that: The clamping mechanism also includes a first clamping assembly and a second clamping assembly. The first clamping assembly includes a first cylinder and a first pressure rod. One end of the first pressure rod is connected to the output end of the first cylinder, and the pressing end of the first pressure rod abuts against the cover plate. The second clamping assembly includes a second cylinder and a second pressure rod. The second pressure rod is connected to the output end of the second cylinder, and the pressing end of the second pressure rod abuts against the cover plate.

5. The box friction welding anti-deformation fixture according to claim 1, characterized in that: Each of the clamping assemblies includes a clamping cylinder and a pressure wall. The clamping cylinder is fixedly connected to the base plate. One end of the pressure wall is connected to the output end of the clamping cylinder. The pressing end of the pressure wall abuts against the top surface of the electric control box.

6. The box friction welding anti-deformation fixture according to claim 1, characterized in that: The positioning seat is provided with a positioning hole, and the box friction welding anti-deformation fixture further includes a positioning component, which includes a plurality of positioning blocks. Each positioning block is provided with a fixing hole and an avoidance groove, and the positioning hole is connected to the fixing hole.

7. The box friction welding anti-deformation fixture according to claim 1, characterized in that: The positioning seat is provided with a positioning hole, and the box friction welding anti-deformation fixture also includes a positioning component, which includes a positioning pin and a positioning pin mounting block. The positioning pin is arranged at one end of the positioning pin mounting block, and the other end of the positioning pin mounting block is connected to the positioning seat.

8. The box friction welding anti-deformation fixture according to claim 1, characterized in that: The positioning seat includes a plurality of support plates and contour plates. Each of the support plates is connected to the bottom plate. The contour plate is connected to one end of the support plate away from the bottom plate.

9. The box friction welding anti-deformation fixture according to claim 8, characterized in that: The positioning seat is provided with a plurality of water holes, and the water holes are communicated with the corresponding water inlet holes or the corresponding water outlet holes.

10. The box friction welding anti-deformation fixture according to claim 1, characterized in that: The profiling block includes a profiling block body and a connecting plate. The water cooling channel is opened in the profiling block body. The water inlet hole and the water outlet hole are opened at the bottom of the connecting plate. The water inlet hole and the water outlet hole are both connected to the water cooling channel. The connecting plate is connected to the positioning seat.

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