Fixing device

By using a fixing device consisting of a bracket, clamp, and positioning mechanism, the problem of insufficient precision in the production of electric vehicle forks was solved, enabling one-time welding and forming, thus reducing costs and the labor intensity of workers.

CN224169067UActive Publication Date: 2026-04-28TIANJIN EMMA LIANXIANG TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN EMMA LIANXIANG TECHNOLOGY CO LTD
Filing Date
2025-03-26
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The precision of the existing electric vehicle forklift manufacturing process cannot be guaranteed, which requires secondary calibration and increases costs.

Method used

A fixing device is provided, including a bracket, a clamping mechanism, a first positioning mechanism, a second positioning mechanism, and a power mechanism, for fixing the riser tube, handle tube, and shoulder cover of an electric vehicle upper fork during welding. The clamping and positioning mechanisms ensure welding accuracy and reduce manual correction steps.

Benefits of technology

It enables precise welding of the electric vehicle fork, reducing labor intensity and costs for workers and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224169067U_ABST
    Figure CN224169067U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of electric vehicle production, in particular to a fixing device which is used for fixing a vertical pipe, a handle pipe and a shoulder cover of an upper fork of an electric vehicle during welding and comprises a support, a clamping mechanism, a first positioning mechanism, a second positioning mechanism and a power mechanism. The clamping mechanism is arranged at the bottom end of the support and can rotate along the axis of the clamping mechanism so that the vertical pipe can be fixed to the support. The top end of the vertical pipe is inserted into a middle hole of the shoulder cover, and the first positioning mechanism is arranged on the side wall of the support and used for limiting the position of the shoulder cover. A handle pipe is arranged on the side, away from the vertical pipe, of the shoulder cover, the second positioning mechanism and the first positioning mechanism are arranged on the support in parallel, and the output end of the power mechanism is in transmission connection with the second positioning mechanism so as to drive the second positioning mechanism to move in the length direction and the height direction of the support and limit the position of the handle pipe. According to the fixing device, the production precision of the upper fork can be guaranteed, secondary manual correction is not needed, and therefore the labor cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle manufacturing technology, specifically to a fixing device. Background Technology

[0002] In recent years, with continuous economic development, the number of motor vehicles has been increasing, leading to increasingly serious problems such as traffic congestion and vehicle exhaust pollution. Electric vehicles, as a low-carbon and convenient mode of transportation, are becoming increasingly popular.

[0003] The upper fork of an electric vehicle is an important component of the vehicle's suspension system. It is mainly used to connect the front wheel to the frame and undertakes the functions of support, shock absorption, and steering.

[0004] Currently, most electric vehicles on the market are manufactured by manually spot-welding parts together using molds on a workbench. The parts are then welded together using welding equipment and reverse welding in the next process. After welding, the parts are placed on a calibration machine in the next process and manually calibrated with a rubber hammer. As a result, the accuracy of the upper fork formed by spot welding and subsequent welding cannot be guaranteed. At the same time, a second calibration process is required, which leads to many procedures and increased costs. Utility Model Content

[0005] (I) This utility model provides a fixing device to alleviate the technical problems of the inability to guarantee the accuracy of the upper fork production process and the high cost caused by secondary calibration in the prior art.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the present invention provides a fixing device for fixing the upright tube, handle tube and shoulder cover of the electric vehicle upper fork during welding, including a bracket, a clamping mechanism, a first positioning mechanism, a second positioning mechanism and a power mechanism;

[0008] The clamping mechanism is located at the bottom end of the bracket, and the clamping mechanism can rotate along its own axis to fix the riser to the bracket;

[0009] The top end of the riser is inserted into the central hole of the shoulder cover, and the first positioning mechanism is located on the side wall of the bracket to limit the position of the shoulder cover;

[0010] The shoulder cover is provided with the handle tube on the side opposite to the upright tube. The second positioning mechanism is arranged parallel to the first positioning mechanism on the bracket. The output end of the power mechanism is connected to the second positioning mechanism to drive the second positioning mechanism to move along the length and height directions of the bracket and limit the position of the handle tube.

[0011] Furthermore, the clamping mechanism includes a quick clamp and a support assembly. The support assembly is disposed on the bracket, the quick clamp is fixed to the support assembly, and the quick clamp is rotatable along its own axis to fix the riser to the support assembly.

[0012] Furthermore, the support assembly includes a fixing block and a support block. The fixing block is disposed on the bracket, and the support block is disposed on the fixing block. A sleeve is provided between the outer wall of the riser and the inner wall of the central hole. The support block is used to support the sleeve and the riser.

[0013] Furthermore, the first positioning mechanism includes a limiting block and a limiting post. The limiting block is symmetrically disposed on the side walls on both sides of the bracket. The limiting block is provided with a limiting post. The limiting post cooperates with the limiting block to limit the position of the shoulder cover.

[0014] Furthermore, the second positioning mechanism includes a first positioning component and a second positioning component. The first positioning component is disposed on the bracket and is used to limit the position of the handle tube along the width direction of the bracket. The second positioning component is disposed on the first positioning component and is used to limit the position of the handle tube along the height direction of the bracket.

[0015] Furthermore, the first positioning component includes a lateral positioning block and a longitudinal positioning block, wherein the lateral positioning block is disposed on the bracket and the longitudinal positioning block is slidably disposed on the longitudinal positioning block.

[0016] Furthermore, the second positioning component includes a handle positioning block, which is slidably disposed on the side wall of the transverse positioning block.

[0017] Furthermore, the power mechanism includes a first drive cylinder and a second drive cylinder. The output end of the first drive cylinder is connected to the handle positioning block to fix the handle to the shoulder cover. The output end of the second drive cylinder is connected to the handle to fix the handle to the transverse positioning block.

[0018] Furthermore, the lateral positioning block has an arc-shaped groove on the side facing the handle tube.

[0019] Furthermore, the outer wall of the transverse positioning block is provided with scale lines, and the bracket is provided with a number of screw holes evenly spaced along its own height direction.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a fixing device for fixing the riser tube, handle tube, and shoulder cover of an electric vehicle upper fork during welding. It includes a bracket, a clamping mechanism, a first positioning mechanism, a second positioning mechanism, and a power mechanism. First, the top end of the riser tube is inserted into the central hole of the shoulder cover. The clamping mechanism is then rotated to fix the riser tube to the bracket. Simultaneously, the first positioning mechanism on the bracket restricts the relative position between the shoulder cover and the bracket after the clamping mechanism fixes the riser tube. A handle tube is located on the side of the shoulder cover away from the riser tube. The second positioning mechanism, parallel to the first positioning mechanism, moves along the length and height of the bracket to fix the relative position of the handle tube, the shoulder cover, and the riser. Finally, the power mechanism drives the clamping mechanism to press the fork in place. The fork is then welded in one go using welding equipment, ensuring production precision and eliminating the need for secondary manual correction, thus reducing labor intensity and labor costs. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 The overall structure of the fixing device provided for the utility model embodiment is being attempted;

[0024] Figure 2 A side view of the overall structure of the fixing device provided in an embodiment of the utility model.

[0025] icon:

[0026] 100-Riser tube; 101-Handle tube; 102-Shoulder cap;

[0027] 200 - Bracket; 201 - Screw hole;

[0028] 300-Quick clamp; 301-Fixing block; 302-Support block; 303-Pipe sleeve;

[0029] 400 - Limit block; 401 - Limit post;

[0030] 500 - Lateral positioning block; 501 - Longitudinal positioning block; 502 - Handle positioning block;

[0031] 600 - First drive cylinder; 601 - Second drive cylinder. Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] like Figures 1 to 2 As shown, this utility model provides a fixing device for fixing the riser tube 100, handle tube 101, and shoulder cover 102 of an electric vehicle upper fork during welding. The device includes a bracket 200, a clamping mechanism, a first positioning mechanism, a second positioning mechanism, and a power mechanism. The clamping mechanism is located at the bottom end of the bracket 200 and can rotate along its own axis to fix the riser tube 100 to the bracket 200. The top end of the riser tube 100 is inserted into the central hole of the shoulder cover 102. The first positioning mechanism is located on the side wall of the bracket 200 to limit the position of the shoulder cover 102. The shoulder cover 102 has a handle tube 101 on the side opposite to the riser tube 100. The second positioning mechanism is parallel to the first positioning mechanism and located on the bracket 200. The output end of the power mechanism is connected to the second positioning mechanism to drive the second positioning mechanism to move along the length and height directions of the bracket 200 and limit the position of the handle tube 101.

[0036] In this embodiment, the fixing device includes a bracket 200, a clamping mechanism, a first positioning mechanism, a second positioning mechanism, and a power mechanism. First, the top end of the upright tube 100 is inserted into the central hole of the shoulder cover 102. The clamping mechanism is rotated to fix the upright tube 100 on the bracket 200. At the same time, since the first positioning mechanism is also provided on the bracket 200, the relative position between the shoulder cover 102 and the bracket 200 is also restricted after the clamping mechanism fixes the upright tube 100. A handle tube 101 is provided on the side of the shoulder cover 102 away from the upright tube 100. The handle tube 101 is fixed to the relative position of the shoulder cover 102 and the upright tube by moving along the length and height directions of the bracket 200 through the second positioning mechanism parallel to the first positioning mechanism. Finally, the power mechanism drives the clamping device to press it. Finally, the device is directly welded in one go using welding equipment, which ensures the production accuracy of the upper fork and eliminates the need for secondary manual correction, reducing the labor intensity of workers and thus reducing labor costs.

[0037] Of course, the aforementioned welding equipment can be a fully automatic welding robot or other welding tools that facilitate one-time welding. Its purpose has not departed from the design concept of this utility model and should fall within the protection scope of this utility model.

[0038] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, the clamping mechanism includes a quick clamp 300 and a support assembly. The support assembly is mounted on the bracket 200, and the quick clamp 300 is fixed to the support assembly. The quick clamp 300 can rotate along its own axis to fix the riser 100 to the support assembly.

[0039] In this embodiment, after inserting the top end of the riser 100 into the central hole of the shoulder cover 102, it is placed at the corresponding position of the bracket 200. By rotating the quick clamp 300, the riser 100 is fixed on the support assembly. During use, the riser 100 can be kept fixed on the support assembly by manually holding the handle end of the quick clamp 300.

[0040] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, the support assembly includes a fixing block 301 and a support block 302. The fixing block 301 is located on the bracket 200, and the support block 302 is located on the fixing block 301. A sleeve 303 is provided between the outer wall of the riser 100 and the inner wall of the central hole. The support block 302 is used to support the sleeve 303 and the riser 100.

[0041] In this embodiment, when the riser 100 is inserted into the central hole of the shoulder cover 102, a sleeve 303 is also inserted. The sleeve 303 is located between the outer wall of the riser 100 and the inner wall of the central hole, and protrudes from the central hole. At the same time, a fixing block 301 is provided on the bracket 200, and a support block 302 is provided on the fixing block 301. The support block 302 restricts the sleeve 303 and the riser 100, so as to cooperate with the first positioning mechanism to restrict the relative position of the riser 100 and the shoulder cover 102 with the bracket 200.

[0042] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, the first positioning mechanism includes a limiting block 400 and a limiting post 401. The limiting block 400 is symmetrically arranged on the side walls on both sides of the bracket 200. The limiting block 400 is provided with a limiting post 401. The limiting post 401 cooperates with the limiting block 400 to limit the position of the shoulder cover 102.

[0043] In this embodiment, limit blocks 400 are symmetrically installed on both sides of the area corresponding to the position of the support 200 and the shoulder cover 102. At the same time, limit posts 401 are installed at the bottom of the limit blocks 400. The limit blocks 400 can connect with the side wall of the shoulder cover 102, and the limit posts 401 can support the shoulder cover 102. Therefore, the limit blocks 400 and the limit posts 401 cooperate with each other to limit the position of the shoulder cover 102.

[0044] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, the second positioning mechanism includes a first positioning component and a second positioning component. The first positioning component is disposed on the bracket 200 and is used to limit the position of the handle tube 101 along the width direction of the bracket 200. The second positioning component is disposed on the first positioning component and is used to limit the position of the handle tube 101 along the height direction of the bracket 200.

[0045] Furthermore, the first positioning component includes a lateral positioning block 500 and a longitudinal positioning block 501. The lateral positioning block 500 is disposed on the bracket 200, and the longitudinal positioning block 501 is slidably disposed on the longitudinal positioning block 501.

[0046] In this embodiment, the transverse positioning block 500 is mounted on the bracket 200, and a slide is provided on the transverse positioning block 500. The longitudinal positioning block 501 is provided with a slider adapted to slide on the side facing the transverse positioning block 500, so that the longitudinal positioning block 501 can slide along the length direction of the transverse positioning block 500 to adjust the distance between the two handle tubes 101, which is equivalent to limiting the position of the two handle tubes 101 along the width direction of the bracket 200.

[0047] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2As shown, the second positioning component includes a handle positioning block 502, which is slidably disposed on the side wall of the transverse positioning block 500.

[0048] In this embodiment, a slide is also provided on the side wall of the handle positioning block 502, and a slider that can be adapted to the slide is provided on the side of the longitudinal positioning block 501 facing the slide. This allows the handle positioning block 502 to move along the height direction of the longitudinal positioning block 501, so that the handle 101 can be pressed against the side wall of the shoulder cover 102 by the handle 101 fixing block 301, which is equivalent to restricting the position of the handle 101 along the height direction of the bracket 200.

[0049] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, the power mechanism includes a first drive cylinder 600 and a second drive cylinder 601. The output end of the first drive cylinder 600 is connected to the handle tube positioning block 502 to fix the handle tube 101 to the shoulder cover 102. The output end of the second drive cylinder 601 is connected to the handle tube 101 to fix the handle tube 101 to the transverse positioning block 500.

[0050] In this embodiment, the power mechanism includes a first drive cylinder 600 and a second drive cylinder 601. The first drive cylinder 600 drives the handle positioning block 502 to move along the height direction of the longitudinal positioning block 501 to press the handle 101 onto the shoulder cover 102. At the same time, the second drive cylinder 601 presses the handle 101 onto the transverse positioning block 500 to facilitate welding.

[0051] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, the side of the transverse positioning block 500 facing the handle tube 101 has an arc-shaped groove.

[0052] In this embodiment, the side of the transverse positioning block 500 facing the handle tube 101 is a contoured surface, which is set as a groove that matches the outer wall of the handle tube 101, so as to ensure that the handle tube 101 will not shake when fixed, thereby improving stability.

[0053] According to one embodiment provided by this utility model, such as Figure 1 and Figure 2 As shown, the outer wall of the transverse positioning block 500 is provided with scale lines, and the bracket 200 is provided with a number of screw holes 201 evenly spaced along its own height direction.

[0054] In this embodiment, a scale line is provided on the outer wall of the transverse positioning block 500. By providing the scale line, the longitudinal positioning block 501 can move along the extension direction of the transverse positioning block 500 to meet the size requirements of different models and shapes.

[0055] Of course, screw holes 201 are also provided on the bracket 200. The screw holes 201 are evenly spaced from top to bottom along the height direction of the bracket 200 itself, so as to cooperate with the fixing block 301, the limiting block 400 and the transverse positioning block 500 to adjust the distance between the three by bolting them into different screw holes 201, so as to achieve the effect of being suitable for different models and different shape and size requirements.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixing device for fixing the riser tube (100), handle tube (101), and shoulder cover (102) of an electric vehicle upper fork during welding, characterized in that, Includes a bracket (200), a clamping mechanism, a first positioning mechanism, a second positioning mechanism, and a power mechanism; The clamping mechanism is located at the bottom end of the bracket (200), and the clamping mechanism can rotate along its own axis to fix the riser (100) to the bracket (200); The top end of the riser (100) is inserted into the middle hole of the shoulder cover (102), and the first positioning mechanism is provided on the side wall of the bracket (200) to limit the position of the shoulder cover (102); The shoulder cover (102) is provided with the handle tube (101) on the side opposite to the riser tube (100). The second positioning mechanism is provided parallel to the first positioning mechanism on the bracket (200). The output end of the power mechanism is connected to the second positioning mechanism to drive the second positioning mechanism to move along the length and height of the bracket (200) and limit the position of the handle tube (101).

2. The fixing device according to claim 1, characterized in that, The clamping mechanism includes a quick clamp (300) and a support assembly. The support assembly is disposed on the bracket (200), and the quick clamp (300) is fixed to the support assembly. The quick clamp (300) is rotatable along its own axis to fix the riser (100) to the support assembly.

3. The fixing device according to claim 2, characterized in that, The support assembly includes a fixing block (301) and a support block (302). The fixing block (301) is disposed on the bracket (200), and the support block (302) is disposed on the fixing block (301). A sleeve (303) is provided between the outer wall of the riser (100) and the inner wall of the central hole. The support block (302) is used to support the sleeve (303) and the riser (100).

4. The fixing device according to claim 3, characterized in that, The first positioning mechanism includes a limiting block (400) and a limiting post (401). The limiting block (400) is symmetrically disposed on the side walls on both sides of the bracket (200). The limiting block (400) is provided with a limiting post (401). The limiting post (401) cooperates with the limiting block (400) to limit the position of the shoulder cover (102).

5. The fixing device according to claim 2, characterized in that, The second positioning mechanism includes a first positioning component and a second positioning component. The first positioning component is disposed on the bracket (200) and is used to limit the position of the handle (101) along the width direction of the bracket (200). The second positioning component is disposed on the first positioning component and is used to limit the position of the handle (101) along the height direction of the bracket (200).

6. The fixing device according to claim 5, characterized in that, The first positioning component includes a lateral positioning block (500) and a longitudinal positioning block (501). The lateral positioning block (500) is disposed on the bracket (200), and the longitudinal positioning block (501) is slidably disposed on the longitudinal positioning block (501).

7. The fixing device according to claim 6, characterized in that, The second positioning component includes a handle positioning block (502), which is slidably disposed on the side wall of the transverse positioning block (500).

8. The fixing device according to claim 7, characterized in that, The lateral positioning block (500) has an arc-shaped groove on the side facing the handle tube (101).

9. The fixing device according to claim 7, characterized in that, The power mechanism includes a first drive cylinder (600) and a second drive cylinder (601). The output end of the first drive cylinder (600) is connected to the handle positioning block (502) to fix the handle (101) to the shoulder cover (102). The output end of the second drive cylinder (601) is connected to the handle (101) to fix the handle (101) to the transverse positioning block (500).

10. The fixing device according to claim 9, characterized in that, The outer wall of the transverse positioning block (500) is provided with scale lines, and the bracket (200) is provided with a number of screw holes (201) evenly spaced along its own height direction.