Quick clamping tool for drilling automobile bridge box cover

By designing a quick-clamping fixture and utilizing the cooperation of the support and pushing devices, the accurate positioning and stable clamping of the bridge box cover were achieved, solving the problem of complex operation of existing fixtures and improving work efficiency and clamping stability.

CN224406479UActive Publication Date: 2026-06-26CHIPING HUITONG MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHIPING HUITONG MASCH MFG CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing automotive bridge cover machining fixtures are complex to operate, affecting the convenience of position correction and positioning operations, and reducing work efficiency.

Method used

A quick clamping fixture was designed, comprising a base, a first clamping component, a pushing device, a supporting device, a second clamping component, multiple sets of supporting wheels, and two sets of third clamping components. Through the cooperation of the supporting device and the pushing device, the accurate positioning and stable clamping of the bridge box cover are achieved. The hydraulic cylinder and pressure sensor are used to improve the convenience and stability of clamping force control.

Benefits of technology

This improved the clamping stability and positioning effect of the bridge box cover, enhanced work efficiency, and ensured the accuracy and safety of the processing.

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    Figure CN224406479U_ABST
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Abstract

The utility model relates to the technical field of clamping frock, especially to quick clamping frock for automobile overbridge box cover drilling, its improve the clamping stability of overbridge box cover, improve overbridge box cover positioning clamping effect, improve work efficiency, including base and first clamping piece, first clamping piece installs on the outside wall of base, still include pushing device, supporting device, second clamping piece, multiple sets of supporting wheel and two groups of third clamping piece, second clamping piece installs on the base through pushing device, pushing device is used for driving second clamping piece horizontal movement, multiple sets of supporting wheel and two groups of third clamping piece are respectively set up in the front and rear two parts of base, multiple sets of supporting wheel and two groups of third clamping piece are respectively installed on supporting device, and supporting device is used for driving multiple sets of supporting wheel and two groups of third clamping piece movement adjustment.
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Description

Technical Field

[0001] This utility model relates to the technical field of clamping fixtures, and in particular to a quick clamping fixture for drilling holes in automotive bridge cover. Background Technology

[0002] As a key component of the automotive transmission system, the machining quality of the vehicle's undercarriage cover directly affects the overall performance and driving safety of the vehicle. The undercarriage cover needs to withstand complex mechanical forces during vehicle operation, therefore requiring extremely high dimensional accuracy, shape accuracy, and surface quality. Thus, accurate positioning and stable clamping are essential during the machining process.

[0003] Currently, among existing fixtures, such as the patent with authorization announcement number CN217194005U, this utility model belongs to the field of bridge box cover processing application equipment, and particularly relates to a fixing fixture for a milling machine for the end face of an automobile bridge box cover, including a concave worktable, with a transverse fixing device and a longitudinal fixing device arranged on the upper left and right sides of the worktable, the transverse fixing device including a first positioning block, and a first positioning nut arranged at the front and rear corners of the upper side of the worktable.

[0004] However, it was found during the use of this fixture that it was quite complicated for personnel to operate manually, which reduced the convenience of position correction and positioning of the bridge box cover and affected work efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a quick clamping fixture for drilling automotive bridge cover, which improves the clamping stability, positioning and clamping effect, and work efficiency of bridge cover.

[0006] This utility model discloses a quick-clamping fixture for drilling automotive undercarriage covers, comprising a base and a first clamping member, the first clamping member being mounted on the outer wall of the base; it also includes a pushing device, a supporting device, a second clamping member, multiple sets of supporting wheels, and two sets of third clamping members. The second clamping member is mounted on the base via the pushing device, which drives the second clamping member to move horizontally. The multiple sets of supporting wheels and the two sets of third clamping members are respectively arranged opposite each other at the front and rear of the base, and are respectively mounted on the supporting device, which drives the multiple sets of supporting wheels and the two sets of third clamping members to move and adjust. The undercarriage cover to be drilled is placed on the top of the base, and then the supporting device... The device drives multiple sets of support wheels to move closer to each other, pushing the bridge box cover to its center and limiting position on both sides. Then, the pushing device drives the second clamping member to move, causing the second clamping member to push the bridge box cover towards the first clamping member. At this time, the two sets of support wheels continue to limit the front and rear sides of the bridge box cover, so that the first and second clamping members accurately clamp and fix the bridge box cover. Then, by making two sets of third clamping members contact the front and rear sides of the bridge box cover respectively, the two sets of third clamping members cooperate with the first and second clamping members to clamp and fix the bridge box cover around its perimeter, improving the clamping stability of the bridge box cover, improving the positioning and clamping effect of the bridge box cover, and improving work efficiency.

[0007] Preferably, the support device includes a power unit, a guide rail, two sets of bases, multiple sets of first telescopic rods, two sets of support plates, multiple sets of springs, and two sets of top rods. The guide rail is located at the top of the base. The two sets of bases are slidably installed on the front and rear parts of the base via the guide rail. The multiple sets of first telescopic rods are respectively located between the two sets of bases and the two sets of support plates. The multiple sets of springs are respectively fitted onto the multiple sets of first telescopic rods. The multiple sets of support wheels are respectively installed on the outer walls of the two sets of support plates. The two sets of top rods are respectively located on the outer walls of the two sets of bases and slide through the interior of the two sets of support plates. The two sets of third clamping members are respectively installed on... At the ends of the two sets of top rods, the power unit is mounted on the base. The power unit provides power for the sliding of the two sets of bases. The power unit drives the two sets of bases to move closer to each other, so that the multiple sets of support wheels first contact the front and rear sides of the bridge box cover. This allows the multiple sets of support wheels to elastically press and limit the bridge box cover. After the first and second clamping members clamp and fix the bridge box cover, the two sets of bases continue to move closer to each other, further compressing the multiple sets of first telescopic rods. This causes the two sets of third clamping members to press and contact the bridge box cover, thereby clamping and fixing the front and rear sides of the bridge box cover and improving the clamping firmness of the bridge box cover.

[0008] Preferably, the power unit includes a connector, two sets of connecting arms, a second telescopic rod, and a first hydraulic cylinder. The connector is rotatably connected to the bottom of the two sets of connecting arms, and the top of the two sets of connecting arms is rotatably connected to the two sets of bases. The second telescopic rod is disposed between the top of the connector and the base, and the first hydraulic cylinder is disposed between the base and the bottom of the connector. The first hydraulic cylinder drives the connector to move up and down, so that the connector drives the two sets of bases to slide in opposite directions through the two sets of connecting arms, thereby improving the convenience of clamping the front and rear sides of the bridge box cover.

[0009] Preferably, the pushing device includes a guide column and a second hydraulic cylinder. The guide column is slidably mounted on the base and connected to the outer wall of the second clamping member. The second hydraulic cylinder is installed between the base and the second clamping member. The second hydraulic cylinder drives the second clamping member to move, thereby improving the convenience of the first clamping member and the second clamping member in cooperating to clamp the bridge box cover.

[0010] Preferably, it also includes a pressure sensor, which is located between the first hydraulic cylinder and the connecting member; the pressure sensor senses the pressure at the output end of the first hydraulic cylinder, thereby improving the convenience of controlling and adjusting the clamping force of the multiple sets of support wheels and the two sets of third clamping members on the bridge box cover.

[0011] Preferably, it also includes two sets of anti-slip pads, which are respectively disposed on the outer side walls of the first clamping member and the second clamping member; to improve the anti-slip effect of clamping the bridge box cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The bridge box cover that needs to be drilled is placed on the top of the base. The support device drives multiple sets of support wheels to move closer to each other, so that the multiple sets of support wheels push the front and rear sides of the bridge box cover to the center and limit it. Then, the pushing device drives the second clamping member to move, so that the second clamping member pushes the bridge box cover towards the first clamping member. At this time, the two sets of support wheels continue to limit the front and rear sides of the bridge box cover, so that the first clamping member and the second clamping member accurately clamp and fix the bridge box cover. Then, by making the two sets of third clamping members contact the front and rear sides of the bridge box cover respectively, the two sets of third clamping members cooperate with the first clamping member and the second clamping member to clamp and fix the bridge box cover around its perimeter, thereby improving the clamping stability of the bridge box cover, improving the positioning and clamping effect of the bridge box cover, and improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is a partial isometric structural diagram of the connection between the base and the first clamping component, etc.

[0015] Figure 3 This is a partial isometric structural diagram of the connection between the base and the first telescopic rod, etc.

[0016] Figure 4 This is a partial isometric structural diagram of the connection between the connector and the connecting arm, etc.

[0017] Figure 5 This is a partial isometric structural diagram showing the connection between the third clamping component and the push rod, etc.

[0018] Figure 6 This is a partial isometric structural diagram showing the connection between the second clamping component and the second hydraulic cylinder, etc.

[0019] The attached diagram shows the following components: 1. Base; 2. First clamping component; 3. Second clamping component; 4. Support wheel; 5. Third clamping component; 6. Guide rail; 7. Base; 8. First telescopic rod; 9. Support plate; 10. Spring; 11. Top rod; 12. Connector; 13. Connecting arm; 14. Second telescopic rod; 15. First hydraulic cylinder; 16. Guide column; 17. Second hydraulic cylinder; 18. Pressure sensor; 19. Anti-slip pad. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 6 As shown, the quick clamping fixture for drilling holes in an automobile bridge cover of this utility model includes a base 1 and a first clamping member 2, which is installed on the outer side wall of the base 1; it also includes a pushing device, a supporting device, a second clamping member 3, multiple sets of supporting wheels 4, and two sets of third clamping members 5. The second clamping member 3 is installed on the base 1 by the pushing device, which is used to drive the second clamping member 3 to move horizontally. The multiple sets of supporting wheels 4 and the two sets of third clamping members 5 are respectively arranged opposite to each other on the front and rear parts of the base 1. The multiple sets of supporting wheels 4 and the two sets of third clamping members 5 are respectively installed on the supporting device, which is used to drive the multiple sets of supporting wheels 4 and the two sets of third clamping members 5 to move and adjust.

[0023] like Figure 3As shown, the support device includes a power unit, a guide rail 6, two sets of bases 7, multiple sets of first telescopic rods 8, two sets of support plates 9, multiple sets of springs 10, and two sets of top rods 11. The guide rail 6 is set at the top of the base 1. The two sets of bases 7 are slidably installed on the front and rear parts of the base 1 through the guide rail 6. The multiple sets of first telescopic rods 8 are respectively set between the two sets of bases 7 and the two sets of support plates 9. The multiple sets of springs 10 are respectively fitted on the multiple sets of first telescopic rods 8. The multiple sets of support wheels 4 are respectively installed on the outer side walls of the two sets of support plates 9. The two sets of top rods 11 are respectively set on the outer side walls of the two sets of bases 7, and the two sets of top rods 11 slide through the interior of the two sets of support plates 9. The two sets of third clamping pieces 5 are respectively installed at the ends of the two sets of top rods 11. The power unit is set on the base 1 and is used to provide power for the sliding of the two sets of bases 7.

[0024] In this embodiment, the bridge box cover requiring drilling is placed on top of the base 1. A support device drives multiple sets of support wheels 4 to move closer together, pushing and centering the bridge box cover on both sides. Then, a pushing device moves the second clamping member 3, causing it to push the bridge box cover towards the first clamping member 2. At this time, the two sets of support wheels 4 continuously limit the front and rear sides of the bridge box cover, ensuring accurate clamping and fixing of the bridge box cover by the first clamping member 2 and the second clamping member 3. Subsequently, two sets of third clamping members 5 contact the front and rear sides of the bridge box cover, cooperating with the first clamping member 2 and the second clamping member 3 to clamp and fix the bridge box cover around its perimeter. This improves the clamping stability of the bridge box cover, enhances its positioning and clamping effect, and increases work efficiency.

[0025] Example 2

[0026] Based on Example 1, such as Figure 4 As shown, the quick clamping fixture for drilling holes in the car bridge box cover of this utility model includes a connecting piece 12, two sets of connecting arms 13, a second telescopic rod 14 and a first hydraulic cylinder 15. The connecting piece 12 is rotatably connected to the bottom of the two sets of connecting arms 13, and the top of the two sets of connecting arms 13 is rotatably connected to the two sets of bases 7. The second telescopic rod 14 is disposed between the top of the connecting piece 12 and the base 1, and the first hydraulic cylinder 15 is disposed between the base 1 and the bottom of the connecting piece 12.

[0027] like Figure 2 As shown, the pushing device includes a guide post 16 and a second hydraulic cylinder 17. The guide post 16 is slidably mounted on the base 1 and connected to the outer side wall of the second clamping member 3. The second hydraulic cylinder 17 is installed between the base 1 and the second clamping member 3.

[0028] like Figure 4 As shown, it also includes a pressure sensor 18, which is disposed between the first hydraulic cylinder 15 and the connecting member 12;

[0029] like Figure 2 As shown, it also includes two sets of anti-slip pads 19, which are respectively disposed on the outer side walls of the first clamping member 2 and the second clamping member 3.

[0030] In this embodiment, the power device drives the two sets of bases 7 to move closer to each other, so that the multiple sets of support wheels 4 first contact the front and rear sides of the bridge box cover, thereby allowing the multiple sets of support wheels 4 to elastically press and limit the bridge box cover. After the first clamping member 2 and the second clamping member 3 clamp and fix the bridge box cover, the two sets of bases 7 continue to move closer to each other, further compressing the multiple sets of first telescopic rods 8, so that the two sets of third clamping members 5 press and contact the bridge box cover, thereby clamping and fixing the front and rear sides of the bridge box cover, improving the clamping firmness of the bridge box cover. The first hydraulic cylinder 15 drives the connecting member 12 to move up and down, so that the connecting member 12 drives the two sets of bases 7 to slide in opposite directions through the two sets of connecting arms 13, thereby improving the convenience of clamping the front and rear sides of the bridge box cover.

[0031] This utility model relates to a quick-clamping fixture for drilling automotive undercarriage covers. During operation, the undercarriage cover to be drilled is placed on top of the base 1. A support device drives multiple sets of support wheels 4 to move closer together, pushing and centering the undercarriage cover on both sides. Then, a pushing device moves the second clamping member 3, causing it to push the undercarriage cover towards the first clamping member 2. At this time, the two sets of support wheels 4 continuously limit the front and rear sides of the undercarriage cover, thus accurately clamping and fixing the undercarriage cover with the first clamping member 2 and the second clamping member 3. Finally, two sets of third clamping members 5 contact the front and rear sides of the undercarriage cover, cooperating with the first clamping member 2 and the second clamping member 3 to clamp and fix the undercarriage cover around its perimeter.

[0032] The first hydraulic cylinder 15, the second hydraulic cylinder 17, and the pressure sensor 18 of the quick clamping fixture for drilling the car bridge cover of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A quick-clamping fixture for drilling holes in an automobile bridge cover, comprising a base (1) and a first clamping member (2), the first clamping member (2) being mounted on the outer wall of the base (1); characterized in that, It also includes a pushing device, a supporting device, a second clamping member (3), multiple sets of supporting wheels (4) and two sets of third clamping members (5). The second clamping member (3) is mounted on the base (1) by the pushing device. The pushing device is used to drive the second clamping member (3) to move horizontally. The multiple sets of supporting wheels (4) and the two sets of third clamping members (5) are respectively arranged opposite to each other on the front and rear parts of the base (1). The multiple sets of supporting wheels (4) and the two sets of third clamping members (5) are respectively mounted on the supporting device. The supporting device is used to drive the multiple sets of supporting wheels (4) and the two sets of third clamping members (5) to move and adjust.

2. The quick-clamping fixture for drilling holes in an automotive bridge cover as described in claim 1, characterized in that, The support device includes a power unit, a guide rail (6), two sets of bases (7), multiple sets of first telescopic rods (8), two sets of support plates (9), multiple sets of springs (10), and two sets of top rods (11). The guide rail (6) is set at the top of the base (1). The two sets of bases (7) are slidably installed on the front and rear parts of the base (1) through the guide rail (6). The multiple sets of first telescopic rods (8) are respectively set between the two sets of bases (7) and the two sets of support plates (9). The multiple sets of springs (10) are respectively installed on the multiple sets of first telescopic rods (8). The multiple sets of support wheels (4) are respectively installed on the outer side walls of the two sets of support plates (9). The two sets of top rods (11) are respectively set on the outer side walls of the two sets of bases (7) and slide through the interior of the two sets of support plates (9). The two sets of third clamping parts (5) are respectively installed at the ends of the two sets of top rods (11). The power unit is set on the base (1) and is used to provide power for the sliding of the two sets of bases (7).

3. The quick-clamping fixture for drilling holes in an automotive bridge cover as described in claim 2, characterized in that, The power unit includes a connector (12), two sets of connecting arms (13), a second telescopic rod (14), and a first hydraulic cylinder (15). The connector (12) is rotatably connected to the bottom of the two sets of connecting arms (13), and the top of the two sets of connecting arms (13) is rotatably connected to the two sets of bases (7). The second telescopic rod (14) is located between the top of the connector (12) and the base (1), and the first hydraulic cylinder (15) is located between the base (1) and the bottom of the connector (12).

4. The quick-clamping fixture for drilling holes in an automotive bridge cover as described in claim 1, characterized in that, The pushing device includes a guide column (16) and a second hydraulic cylinder (17). The guide column (16) is slidably mounted on the base (1) and connected to the outer wall of the second clamping member (3). The second hydraulic cylinder (17) is installed between the base (1) and the second clamping member (3).

5. The quick-clamping fixture for drilling holes in an automotive bridge cover as described in claim 3, characterized in that, It also includes a pressure sensor (18), which is disposed between the first hydraulic cylinder (15) and the connector (12).

6. The quick-clamping fixture for drilling holes in an automotive bridge cover as described in claim 1, characterized in that, It also includes two sets of anti-slip pads (19), which are respectively set on the outer side walls of the first clamping member (2) and the second clamping member (3).