A composite clamp

Abstract

The utility model relates to a kind of composite fixture, including support seat and clamping system;Support seat is equipped with first station, second station and third station;Clamping system includes first clamping unit, second clamping unit and third clamping unit, first clamping unit, second clamping unit and third clamping unit are one-to-one correspondence and located in first station, second station and third station;When knuckle is clamped to first clamping unit, second clamping unit or third clamping unit, different parts of knuckle can be machined by machining equipment.The utility model is configured with independent clamping unit in each station, and different machining surfaces of knuckle are adapted by differentiation design.After knuckle is clamped to any station, machining equipment can machine specific area of knuckle, realize "one clamping multiple processes".So it can reduce clamping frequency, eliminate repeated positioning error.Moreover, through station cooperation, multiple key parts can be machined by single clamping, so as to improve machining efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, and specifically to a composite fixture. Background Technology

[0002] As a core component of the automotive steering system, the steering knuckle is mostly a long-neck structure, mainly composed of bearing mounting holes, tie rod mounting holes, brake caliper mounting holes, etc. Its complex structure involves many interconnected dimensions and requires high precision. Traditional machining requires multiple clamping operations to complete machining processes for different parts. However, multiple clamping operations result in poor dimensional accuracy and positional inaccuracies. Furthermore, machining a single part requires frequent fixture changes, leading to long auxiliary time. Utility Model Content

[0003] Based on the above description, this utility model provides a composite fixture, which aims to solve the problem that existing fixtures have single functions and lack a collaborative positioning mechanism, making it difficult to achieve multi-process integrated processing.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A composite clamp applied to a steering knuckle, comprising: The support base has a first workstation, a second workstation, and a third workstation; The clamping system includes a first clamping unit, a second clamping unit, and a third clamping unit, which are respectively located at the first workstation, the second workstation, and the third workstation. When the steering knuckle is clamped to the first clamping unit, the second clamping unit, or the third clamping unit, the processing equipment can process different parts of the steering knuckle.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the first clamping unit includes a first central clamping mechanism and a first positioning clamping mechanism that are spaced apart along the length direction of the support.

[0007] Furthermore, the first central clamping mechanism includes a first linear driver, a pull rod, and a first pressure plate. The first linear driver is installed at the first work station, one end of the pull rod is connected to the output end of the first linear driver, and the first pressure plate is detachably connected to the other end of the pull rod.

[0008] Furthermore, the first positioning and clamping mechanism includes a positioning and clamping component, which is located at the first work station.

[0009] Furthermore, the first positioning and pressing mechanism includes a first support head, which is located at the first work station and is positioned opposite to the pressing head of the positioning and pressing assembly.

[0010] Furthermore, the second clamping unit includes a first upper arm clamping device and a plurality of third positioning and clamping mechanisms. A through hole is provided on the second work station. The first upper arm clamping device and the through hole are spaced apart along the length direction of the support base. The plurality of third positioning and clamping mechanisms are arranged around the through hole.

[0011] Furthermore, the first upper arm clamping device includes a support seat and a second positioning and clamping mechanism, the second positioning and clamping mechanism being disposed on the support seat.

[0012] Furthermore, the first upper arm clamping device includes at least one pair of support mechanisms, which are disposed on the bearing seat and located on the side of the second positioning and clamping mechanism opposite to the through hole, with each pair of support mechanisms arranged symmetrically.

[0013] Furthermore, the second clamping unit includes a plurality of fourth positioning and clamping mechanisms, which are located at the second work station and arranged around the through hole.

[0014] Furthermore, the third clamping unit includes a second upper arm clamping device and a second center clamping mechanism that are spaced apart along the length direction of the support.

[0015] Compared with existing technologies, the technical solution of this application has the following beneficial technical effects: This utility model, by configuring independent clamping units at each workstation, adapts to different machining surfaces of the steering knuckle through differentiated design. After the steering knuckle is clamped to any workstation, the machining equipment can process a specific area of ​​the steering knuckle, realizing "one clamp, multiple processes". This reduces the number of clamping operations and eliminates repetitive positioning errors. Furthermore, through workstation collaboration, the machining of multiple key parts can be completed in a single clamping, thereby improving machining efficiency. Attached Figure Description

[0016] Figure 1 This is an assembly drawing of a composite fixture provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the first clamping unit in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first positioning and pressing mechanism in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the second clamping unit in an embodiment of the present invention; Figure 5This is a schematic diagram of the structure of the first upper arm pressing device in an embodiment of the present invention; Figure 6 This is a schematic diagram of the fourth positioning and pressing mechanism in an embodiment of the present invention; Figure 7 This is a partial structural schematic diagram of the fourth positioning and pressing mechanism in an embodiment of this utility model; Figure 8 This is a schematic diagram of the structure of the third clamping unit in an embodiment of the present invention; Figure 9 This is a schematic diagram of the steering knuckle conversion of a composite clamp provided in an embodiment of the present utility model; Figure 10 This is a schematic diagram of the steering knuckle in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Upper arm; 2. Bearing mounting surface; 3. Bearing mounting hole; 4. Tie rod arm; 5. Tie rod mounting hole; 6. ABS mounting surface; 7. Brake caliper mounting hole; 10. Support base; 11. First station; 12. Second station; 121. Through hole; 13. Third station; 20. Clamping system; 21. First clamping unit; 211. First central clamping mechanism; 2111. First linear actuator; 2112. Pull rod; 2113. First pressure plate; 212. First positioning and clamping mechanism; 2121. Positioning and clamping assembly; 2122. First support head; 22. Second clamping unit; 221. First upper arm clamping device; 2211. Bearing seat; 2212. Second positioning and clamping mechanism; 2213. Support mechanism; 22131. Second linear actuator; 221 32. Second support head; 222. Third positioning and clamping mechanism; 223. Fourth positioning and clamping mechanism; 2231. Mounting shaft; 22311. Limiting groove; 2232. Connecting shaft; 2233. Second pressure plate; 22331. Limiting protrusion; 2234. Star handle; 2235. Locking nut; 2236. Elastic element; 224. First coarse limiting seat; 225. Second coarse limiting seat; 23. Third clamping unit; 231. Second upper arm clamping device; 232. Second center clamping mechanism. Detailed Implementation

[0018] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0020] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0021] When used here, the singular forms of “a,” “an,” and “ / the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “including / contains” or “having” specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0022] Reference Figure 1 As shown, this utility model provides a technical solution: a composite fixture applied to a steering knuckle, including a support base 10 and a clamping system 20; the support base 10 is provided with a first work station 11, a second work station 12 and a third work station 13; the clamping system 20 includes a first clamping unit 21, a second clamping unit 22 and a third clamping unit 23, which are respectively arranged at the first work station 11, the second work station 12 and the third work station 13; when the steering knuckle is clamped to the first clamping unit 21, the second clamping unit 22 or the third clamping unit 23, the processing equipment can process different parts of the steering knuckle.

[0023] According to this embodiment, by configuring independent clamping units at each workstation, and through differentiated design, the steering knuckle can be adapted to different machining surfaces. After the steering knuckle is clamped at any workstation, the machining equipment can process a specific area of ​​the steering knuckle, achieving "one clamp, multiple processes". This reduces the number of clamping operations and eliminates repetitive positioning errors. Furthermore, through workstation collaboration, multiple key parts can be machined in a single clamping operation, thereby improving machining efficiency.

[0024] Reference Figures 1 to 2 As shown, in some embodiments, the first clamping unit 21 includes a first central clamping mechanism 211 and a first positioning clamping mechanism 212 that are spaced apart along the length of the support base 10.

[0025] According to this embodiment, the first central clamping mechanism 211 clamps the tie rod arm 4 of the steering knuckle, and the first positioning clamping mechanism 212 clamps the upper arm 1 of the steering knuckle. The first central clamping mechanism 211 provides the main clamping force, and the first positioning clamping mechanism 212 provides lateral auxiliary fixation. In this way, the steering knuckle is prevented from deforming due to single-point force distribution by multiple clamping forces.

[0026] Reference Figures 1 to 2 As shown, in some embodiments, the first central clamping mechanism 211 includes a first linear driver 2111, a pull rod 2112 and a first pressure plate 2113. The first linear driver 2111 is installed at the first station 11, one end of the pull rod 2112 is connected to the output end of the first linear driver 2111, and the first pressure plate 2113 is detachably connected to the other end of the pull rod 2112.

[0027] For example, the first linear actuator 2111 can be a cylinder, a hydraulic cylinder, or an electric actuator, etc. The first pressure plate 2113 can be annular or C-shaped, etc.

[0028] According to this embodiment, when clamping the steering knuckle, the steering knuckle bearing mounting hole 3 is aligned with the tie rod 2112, and the steering knuckle is moved toward the support seat 10, allowing the tie rod 2112 to pass through the bearing mounting hole 3. Next, a first pressure plate 2113 is mounted on the tie rod 2112, and a first linear actuator 2111 pulls the first pressure plate 2113 toward the steering knuckle via the tie rod 2112, causing the first pressure plate 2113 to apply pressure to the steering knuckle, thereby providing clamping force. The increased contact surface of the first pressure plate 2113 reduces localized stress deformation.

[0029] Reference Figures 1 to 2 As shown, in some embodiments, the first central pressing mechanism 211 includes a disc, which is disposed at the first station 11. The disc corresponds one-to-one with the first linear driver 2111, and one end of the pull rod 2112 passes through the central hole of the disc and is connected to the output end of the first linear driver 2111.

[0030] According to this embodiment, the disc can not only provide support for the steering knuckle, but also cooperate with the first pressure plate 2113 to provide clamping force for the steering knuckle.

[0031] Reference Figures 1 to 2 As shown, in some embodiments, the first positioning and pressing mechanism 212 includes a positioning and pressing component 2121, which is located at the first work station 11.

[0032] For example, the positioning and clamping assembly 2121 can be a pneumatic elbow clamp or a hydraulic elbow clamp, etc.

[0033] According to this embodiment, the positioning and clamping assembly 2121 provides clamping force to the upper arm 1 of the steering knuckle to prevent the steering knuckle from shifting laterally.

[0034] Reference Figures 1 to 2 As shown, in some embodiments, the first positioning and pressing mechanism 212 includes a first support head 2122, which is located at the first work station 11 and is positioned opposite to the pressing head of the positioning and pressing assembly 2121.

[0035] According to this embodiment, the first support head 2122 cooperates with the pressure head of the positioning and clamping assembly 2121 to provide a strong clamping force to the steering knuckle and reduce the possibility of lateral deflection of the steering knuckle.

[0036] Reference Figures 1 to 2 As shown, in some embodiments, the second clamping unit 22 includes a first upper arm clamping device 221 and a plurality of third positioning and clamping mechanisms 222. A through hole 121 is provided on the second station 12. The first upper arm clamping device 221 and the through hole 121 are spaced apart along the length direction of the support base 10. The plurality of third positioning and clamping mechanisms 222 are arranged around the through hole 121.

[0037] For example, the structure of the third positioning and clamping mechanism 222 can be the same as that of the first positioning and clamping mechanism 212.

[0038] According to this embodiment, the upper arm 1 of the steering knuckle is clamped by the first upper arm clamping device 221, and the tie rod arm 4 of the steering knuckle is clamped by all the third positioning clamping mechanisms 222, so that the processing equipment can process the plane of the tie rod arm 4 of the steering knuckle and the tie rod mounting hole 5. During processing, the through hole 121 avoids the processing area, so that the tie rod mounting hole 5 can be processed in one go; while the multiple third positioning clamping mechanisms 222 can evenly distribute the cutting force and prevent chatter of the thin-walled structure.

[0039] Reference Figures 1 to 2 As shown, in some embodiments, the first upper arm pressing device 221 includes a support seat 2211 and a second positioning pressing mechanism 2212, the second positioning pressing mechanism 2212 being disposed on the support seat 2211.

[0040] For example, the structure of the second positioning and pressing mechanism 2212 can be the same as that of the first positioning and pressing mechanism 212.

[0041] According to this embodiment, the second positioning and clamping mechanism 2212 can achieve quick clamping of the upper arm 1, thereby improving work efficiency.

[0042] Reference Figures 1 to 2 As shown, in some embodiments, the first upper arm clamping device 221 includes at least one pair of support mechanisms 2213, which are disposed on the bearing seat 2211. The at least one pair of support mechanisms 2213 are located on the side of the second positioning clamping mechanism 2212 away from the through hole 121, and each pair of support mechanisms 2213 is symmetrically arranged.

[0043] For example, the structure of the support mechanism 2213 can be the same as that of the first positioning and pressing mechanism 212. Alternatively, the support mechanism 2213 may include a second linear actuator 22131 and a second support head 22132, with the second support head 22132 located at the output end of the second support actuator; wherein the structure of the second linear actuator 22131 can be the same as that of the first linear actuator 2111. In embodiments of this utility model, one of each pair of support mechanisms 2213 has the same structure as the first positioning and pressing mechanism 212, and the other of each pair of support mechanisms 2213 may include a second linear actuator 22131 and a second support head 22132.

[0044] According to this embodiment, each pair of support mechanisms 2213 automatically aligns with the upper arm 1 of the steering knuckle, and works with the second positioning and pressing mechanism 2212 to achieve rapid positioning, thereby improving positioning accuracy.

[0045] Reference Figures 1 to 2 As shown, in some embodiments, the second clamping unit 22 includes a plurality of fourth positioning and clamping mechanisms 223, which are disposed at the second work station 12 and arranged around the through hole 121.

[0046] According to this embodiment, the fourth positioning and clamping mechanism 223 works in conjunction with the third positioning and clamping mechanism 222 to cover the circumference of the tie rod arm 4 of the steering knuckle and provide a strong clamping force to the steering knuckle.

[0047] Reference Figures 1 to 2 As shown, in some embodiments, the fourth positioning and clamping mechanism 223 includes a mounting shaft 2231, a connecting shaft 2232, a second pressure plate 2233, a star-shaped handle 2234, and a locking nut 2235. The connecting shaft 2232 is located inside the mounting shaft 2231. The second pressure plate 2233 is located at one end of the mounting shaft 2231 away from the second station 12. The second pressure plate 2233 has a through hole corresponding to the connecting shaft 2232. The bolt of the star-shaped handle 2234 passes through the through hole and is threadedly connected to the connecting shaft 2232. The locking nut 2235 is located on the side of the second pressure plate 2233 away from the mounting shaft 2231. The locking nut 2235 is threadedly connected to the bolt of the star-shaped handle 2234.

[0048] According to this embodiment, the second pressure plate 2233 abuts against the steering knuckle, and the locking bolt is tightened so that the second pressure plate 2233 applies a clamping force to the steering knuckle.

[0049] Reference Figures 1 to 2 As shown, in some embodiments, the fourth positioning and pressing mechanism 223 includes an elastic element 2236, which is sleeved on the connecting shaft 2232. One end of the elastic element 2236 abuts against the flange of the connecting shaft 2232, and the other end of the elastic element 2236 abuts against the second pressure plate 2233.

[0050] For example, the elastic element 2236 can be a spring or an elastic rubber ring, etc.

[0051] According to this embodiment, when the locking nut 2235 is loosened, the elastic element 2236 can cause the second pressure plate 2233 to move away from the steering knuckle quickly, thereby improving the disassembly efficiency of the second pressure plate 2233.

[0052] Reference Figures 1 to 2 As shown, in some embodiments, the fourth positioning and pressing mechanism 223 includes a first coarse limiting seat 224, which is located at the second station 12 and is situated on the side opposite to the bearing seat 2211 and the third positioning and pressing mechanism 222.

[0053] According to this embodiment, when the steering knuckle is clamped, the first coarse limit seat 224 assists in positioning the steering knuckle to ensure the positional accuracy of the steering knuckle.

[0054] Reference Figures 1 to 2 As shown, in some embodiments, the fourth positioning and clamping mechanism 223 includes a plurality of second coarse limiting seats 225, which are arranged around the through hole 121.

[0055] According to this embodiment, when the steering knuckle is clamped, the second coarse limit seat 225 assists in positioning the steering knuckle to ensure the positional accuracy of the steering knuckle.

[0056] Reference Figures 1 to 2 As shown, in some embodiments, the third clamping unit 23 includes a second upper arm clamping device 231 and a second central clamping mechanism 232 that are spaced apart along the length of the support base 10.

[0057] For example, the structure of the second upper arm pressing device 231 can be the same as that of the first upper arm pressing device 221; in the embodiments of this utility model, both support mechanisms 2213 of the second upper arm pressing device 231 may include a second linear driver 22131 and a second support head 22132. The structure of the second central pressing mechanism 232 can be the same as that of the first central pressing mechanism 211.

[0058] According to this embodiment, the upper arm 1 of the steering knuckle is clamped by the second upper arm clamping device 231 and the tie rod arm 4 of the steering arm is clamped by the second center clamping mechanism 232, so that the processing equipment can process the ABS mounting surface 6 and the brake caliper mounting hole 7 of the steering knuckle.

[0059] The following section explains the parts processed by the machining equipment when each clamping unit clamps the steering knuckle.

[0060] When the first clamping unit 21 clamps the steering knuckle, the machining equipment can process the upper arm 1, the bearing seat mounting surface 2, and the bearing mounting hole 3.

[0061] When the second clamping unit 22 clamps the steering knuckle, the machining equipment can machine the plane of the tie rod arm 4 and the tie rod mounting hole 5.

[0062] When the third clamping unit 23 clamps the steering knuckle, the machining can be performed on the ABS mounting surface 6 and the brake caliper mounting hole 7.

[0063] 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 should be included within the protection scope of the present utility model.

Claims

1. A composite clamp, characterized in that, Applied to steering knuckles, including: The support base (10) is provided with a first workstation (11), a second workstation (12) and a third workstation (13). The clamping system (20) includes a first clamping unit (21), a second clamping unit (22), and a third clamping unit (23). The first clamping unit (21), the second clamping unit (22), and the third clamping unit (23) are respectively located at the first work station (11), the second work station (12), and the third work station (13). When the steering knuckle is clamped to the first clamping unit (21), the second clamping unit (22), or the third clamping unit (23), the processing equipment can process different parts of the steering knuckle.

2. The composite clamp according to claim 1, characterized in that, The first clamping unit (21) includes a first central clamping mechanism (211) and a first positioning clamping mechanism (212) arranged at intervals along the length direction of the support (10).

3. The composite clamp according to claim 2, characterized in that, The first central clamping mechanism (211) includes a first linear driver (2111), a pull rod (2112) and a first pressure plate (2113). The first linear driver (2111) is installed at the first work station (11). One end of the pull rod (2112) is connected to the output end of the first linear driver (2111), and the first pressure plate (2113) is detachably connected to the other end of the pull rod (2112).

4. The composite fixture according to claim 3, characterized in that, The first positioning and pressing mechanism (212) includes a positioning and pressing component (2121), which is located at the first work station (11).

5. The composite clamp according to claim 4, characterized in that, The first positioning and pressing mechanism (212) includes a first support head (2122), which is located at the first work station (11). The first support head (2122) is arranged opposite to the pressing head of the positioning and pressing assembly (2121).

6. The composite clamp according to claim 5, characterized in that, The second clamping unit (22) includes a first upper arm clamping device (221) and a plurality of third positioning clamping mechanisms (222). A through hole (121) is provided on the second station (12). The first upper arm clamping device (221) and the through hole (121) are spaced apart along the length direction of the support (10). The plurality of third positioning clamping mechanisms (222) are arranged around the through hole (121).

7. The composite clamp according to claim 6, characterized in that, The first upper arm pressing device (221) includes a support seat (2211) and a second positioning pressing mechanism (2212), the second positioning pressing mechanism (2212) being disposed on the support seat (2211).

8. The composite fixture according to claim 7, characterized in that, The first upper arm pressing device (221) includes at least one pair of support mechanisms (2213), which are disposed on the bearing seat (2211). The at least one pair of support mechanisms (2213) are located on the side of the second positioning pressing mechanism (2212) away from the through hole (121), and each pair of support mechanisms (2213) is symmetrically arranged.

9. The composite clamp according to claim 8, characterized in that, The second clamping unit (22) includes a plurality of fourth positioning and clamping mechanisms (223), which are located at the second work station (12) and are arranged around the through hole (121).

10. The composite clamp according to claim 9, characterized in that, The third clamping unit (23) includes a second upper arm clamping device (231) and a second center clamping mechanism (232) arranged at intervals along the length direction of the support (10).

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