Universal work fixture for torsion test of control arm bushing
By designing a general-purpose tool fixture that includes a height adjustment mechanism, a restraining mechanism and a torsion test torque transmission device, the problem of inconvenient disassembly and frequent angle adjustment during the bench construction process is solved, and efficient and accurate test loading is achieved.
Patent Information
- Application Number
- CN202421762535.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The existing test equipment is inconvenient to disassemble and assemble during the bench construction process, and the equipment angle limits lead to the need to adjust the angle of the fixture multiple times, affecting the efficiency of the bench construction.
A general-purpose tool clamp for controlling the torsion test of the arm bushing is designed, including a height adjustment mechanism, a restraining mechanism and a torsion test torque transmission device, through which the height adjustment of the clamp and the coaxial loading of the torsion test are achieved.
This universal tooling fixture can be easily disassembled and adjusted, ensuring the coaxial loading accuracy of the driving equipment and the part to be tested during the test, and improving the efficiency of bench construction and the accuracy of tests.
Smart Images
Figure CN222926515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of torsional test of control arm bushings, and particularly to a universal fixture for torsional test of control arm bushings. Background Art
[0002] In the prior art, due to project requirements, the laboratory often involves torsional tests of control arm bushings. Due to its own structural reasons, the current test equipment is inconvenient to disassemble and assemble during the construction of the test bench.
[0003] At the same time, since the angle range of the equipment is only ±50°, it is necessary to adjust the fixture angle multiple times during the construction of the test bench to adapt to the equipment drive device.
[0004] This situation often affects the efficiency of test bench construction.
[0005] Therefore, the inventor of this application designed a universal fixture for torsional test of control arm bushings in order to overcome the above technical problems. Summary of the Utility Model
[0006] The technical problem to be solved by the utility model is to provide a universal fixture for torsional test of control arm bushings in order to overcome the defects in the prior art such as inconvenient disassembly and assembly of test equipment and affecting the efficiency of test bench construction.
[0007] The utility model solves the above technical problems by the following technical solutions:
[0008] A universal fixture for torsional test of control arm bushings, characterized in that the universal fixture includes: a height adjustment mechanism, a constraint mechanism, and a torsional test torque transmission device. The constraint mechanism is installed on the height adjustment mechanism and moves up and down along the height adjustment mechanism.
[0009] The torsional test torque transmission device is installed on the constraint mechanism. One end of the torsional test torque transmission device is connected to a torsional drive device, and the other end is connected to a test piece to be tested, so that the torsional test torque transmission device is coaxial with the torsional drive device.
[0010] According to an embodiment of the utility model, the height adjustment mechanism includes a fixed base and at least two height adjustment rods. One end of the height adjustment rod is fixed on the fixed base, and the other end extends upward.
[0011] According to an embodiment of the utility model, the constraint mechanism includes a lower constraint clamp and an upper constraint clamp. The upper constraint clamp and the lower constraint clamp hold and fix the torsional test torque transmission device up and down.
[0012] According to an embodiment of the present utility model, the torsional test torque transmission device includes an adapter plate, an adapter connecting rod, and a bushing loading tooling. The adapter plate is installed at one end of the adapter connecting rod for connecting a torsional driving device;
[0013] The bushing loading tooling is installed at the other end of the adapter connecting rod for connecting a test piece to be tested;
[0014] The adapter connecting rod is fixed between the upper restraint clamp and the lower restraint clamp.
[0015] According to an embodiment of the present utility model, a rolling bearing and a snap ring are further arranged between the upper restraint clamp and the lower restraint clamp. The adapter connecting rod is installed in the rolling bearing and fixed by the snap ring.
[0016] According to an embodiment of the present utility model, a first groove is provided on the upper restraint clamp, and a second groove is provided on the lower restraint clamp. The upper restraint clamp and the lower restraint clamp are clamped together to form a receiving cavity, and the rolling bearing is installed in the receiving cavity.
[0017] According to an embodiment of the present utility model, a flat key connection is adopted between the adapter plate and the adapter connecting rod.
[0018] According to an embodiment of the present utility model, the adapter connecting rod and the bushing loading tooling are connected by an annular bolt group.
[0019] According to an embodiment of the present utility model, the bushing loading tooling is L-shaped.
[0020] According to an embodiment of the present utility model, a plurality of uniformly distributed mounting holes are provided on the adapter plate for installing a torsional driving device.
[0021] The positive and progressive effects of the present utility model are as follows:
[0022] The general tooling fixture for the control arm bushing torsional test of the present utility model has the following many advantages:
[0023] First, it can protect the torsional device from being damaged by external torque during the setup process, and can also ensure the coaxial loading accuracy between the driving device and the test piece to be tested during the test.
[0024] Second, in addition to ensuring the need to smoothly load the test piece clockwise and counterclockwise, the general tooling fixture is convenient to disassemble and assemble, and has strong versatility, and can meet the requirements for setting up the test bench for most control arm torsional static tests and torsional fatigue tests. Description of the Drawings
[0025] The above and other features, properties, and advantages of the present utility model will become more apparent from the following description in conjunction with the drawings and embodiments, in which like reference numerals always denote like features, where:
[0026] Figure 1 It is a perspective view of a general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0027] Figure 2 It is an installation schematic diagram of a rolling bearing and a circlip in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0028] Figure 3 It is a structural schematic diagram of an adapter plate in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0029] Figure 4 It is a structural schematic diagram of an adapter connecting rod in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0030] Figure 5 It is a structural schematic diagram of a lower restraint clamp in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0031] Figure 6 It is a structural schematic diagram of a height adjustment rod in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0032] Figure 7 It is a structural schematic diagram of a fixed base in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0033] Figure 8 It is a structural schematic diagram of an upper restraint clamp in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0034] Figure 9 It is a structural schematic diagram of a bushing loading tooling in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0035] Figure 10 It is a structural schematic diagram of a flat key in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0036] Figure 11 It is a structural schematic diagram of a rolling bearing in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0037] Figure 12 It is a structural schematic diagram of a circlip in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0038]
Reference Numerals
[0039] Height adjustment mechanism 10
[0040] Restraint mechanism 20
[0041] Torsion test torque transmission device 30
[0042] Specimen to be tested 40
[0043] Fixed base 11
[0044] Height adjustment rod 12
[0045] Lower restraint clamp 21
[0046] Upper restraint clamp 22
[0047] Adapter plate 31
[0048] Adapter connecting rod 32
[0049] Bushing loading tooling 33
[0050] Rolling bearing 23
[0051] Circlip 24
[0052] First groove 221
[0053] Second groove 211
[0054] Flat key 50
[0055] Mounting hole 311 Detailed implementation manners
[0056] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model is provided in conjunction with the accompanying drawings.
[0057] Embodiments of the present utility model will now be described in detail with reference to the drawings. Preferred embodiments of the present utility model will now be described in detail, and examples thereof are shown in the drawings. Wherever possible, the same reference numerals will be used throughout the drawings to refer to the same or like parts.
[0058] In addition, although the terms used in the present utility model are selected from well-known and commonly used terms, some of the terms mentioned in the description of the present utility model may be selected by the applicant according to his or her judgment, and their detailed meanings are described in the relevant parts of the description herein.
[0059] In addition, it is required to understand the present utility model not only through the actual terms used, but also through the meaning implied by each term.
[0060] Figure 1This is a three-dimensional view of the general tooling fixture for the torsional test of the control arm bushing of the present utility model. Figure 2 This is a schematic installation view of the rolling bearing and the snap ring in the general tooling fixture for the torsional test of the control arm bushing of the present utility model.
[0061] As Figure 1 and Figure 2 shown, the present utility model discloses a general tooling fixture for the torsional test of a control arm bushing, which includes: a height adjustment mechanism 10, a constraint mechanism 20, and a torsional test torque transmission device 30. Among them, the constraint mechanism 20 is installed on the height adjustment mechanism 10 and moves up and down along the height adjustment mechanism 10.
[0062] The torsional test torque transmission device 30 is installed on the constraint mechanism 20. One end of the torsional test torque transmission device 30 is connected to a torsional drive device (not shown in the figure), and the other end is connected to a test piece 40 to make the torsional test torque transmission device 30 coaxial with the torsional drive device.
[0063] Preferably, the height adjustment mechanism 10 includes a fixed base 11 (as Figure 7 shown) and at least two height adjustment rods 12 (as Figure 6 shown). One end of the height adjustment rod 12 is fixed on the fixed base 11, and the other end extends upward.
[0064] The constraint mechanism 20 includes a lower constraint clamp 21 (as Figure 5 shown) and an upper constraint clamp 22 (as Figure 8 shown). The upper constraint clamp 22 and the lower constraint clamp 21 are clamped up and down to fix the torsional test torque transmission device 30.
[0065] The torsional test torque transmission device 30 includes an adapter plate 31 (as Figure 3 shown), an adapter connecting rod 32 (as Figure 4 shown), and a bushing loading tooling 33 (as Figure 9 shown). The adapter plate 31 is installed at one end of the adapter connecting rod 32 for connecting the torsional drive device.
[0066] The bushing loading tooling 33 is installed at the other end of the adapter connecting rod 32 for connecting the test piece 40. The adapter connecting rod 32 is fixed between the upper constraint clamp 22 and the lower constraint clamp 21.
[0067] Here, the lower constraint clamp 21, the height adjustment rod 12, the fixed base 11, and the upper constraint clamp 22 constitute the basic framework of the general tooling fixture for the torsional test.
[0068] By adjusting the positions of the upper and lower clamps on the height adjustment rod, it can be ensured that the bushing loading tooling 33 always works coaxially with the torsion drive device, so as to ensure that the driving torque is always loaded around the center of the bushing, and the accuracy of the test load application position is guaranteed.
[0069] Furthermore, a rolling bearing 23 (as shown in Figure 11 ) and a circlip 24 (as shown in Figure 12 ) are also provided between the upper restraint clamp 22 and the lower restraint clamp 21. The adapter connecting rod 32 is installed in the rolling bearing 23 and fixed by the circlip 24.
[0070] Through the form-fit constraints of the rolling bearing 23, the circlip 24, and the upper restraint clamp 22 and the lower restraint clamp 21, it can be ensured that the adapter plate 31, the adapter connecting rod 32, and the bushing loading tooling 33 will not move axially along the loading axis during the loading process.
[0071] As shown in Figure 5 and Figure 8 , a first groove 221 is provided on the upper restraint clamp 22, and a second groove 211 is provided on the lower restraint clamp 21. The upper restraint clamp 22 and the lower restraint clamp 21 are clamped together to form a receiving cavity, and the rolling bearing 23 is installed in the receiving cavity.
[0072] Combined with Figure 1 and Figure 10 shown, the torsion cylinder is connected to the adapter plate 31 by a plurality of bolts, and a flat key 50 (as shown in Figure 10 ) is used to connect the adapter plate 31 and the adapter connecting rod 32.
[0073] This can ensure that the test device meets the requirements of clockwise and counterclockwise loading drive functions while also satisfying the performance of being easy to disassemble.
[0074] The adapter connecting rod 32 and the bushing loading tooling 33 are connected by an annular bolt group, so as to transfer the torque and rotation angle on the torsion device to the bushing test piece to be loaded, in order to achieve the test function of the performance of the test piece.
[0075] In addition, preferably, a plurality of uniformly distributed mounting holes 311 can be provided on the adapter plate 31 for mounting the torsion drive device.
[0076] As shown in Figure 9 , the bushing loading tooling 33 here can preferably be L-shaped. The rear bushing of the test piece 40 is installed on the bushing loading tooling 33.
[0077] This can ensure that the bushing loading tooling 33 always works coaxially with the torsion drive device, so as to ensure that the driving torque is always loaded around the center of the bushing, and the accuracy of the test load application position is guaranteed.
[0078] According to the above structural description, the general tooling fixture for the control arm bushing torsion test integrates mechanisms such as a height adjustment rod, a snap ring, and upper and lower restraint clamps. By adjusting the position of the upper and lower restraint clamps on the height rod, the coaxiality between the loading center of the driving device and the force-receiving center of the test piece to be tested can be ensured, guaranteeing the accuracy of the test loading process.
[0079] At the same time, torque is transmitted through the keyway mechanism, which can not only ensure the accuracy of the transmitted torque value and angle, but also achieve the convenience of fixture disassembly and assembly. By simply replacing different bushing loading tooling structures, the test requirements for most test pieces can be met, improving the general performance and application range of this fixture. For test items related to the torsional holding force of bushings, the tooling fixture can be widely promoted.
[0080] In summary, the general tooling fixture for the control arm bushing torsion test of the present utility model has the following many advantages:
[0081] First, it can protect the torsion device from being damaged by external torque during the setup process and can also ensure the coaxial loading accuracy between the driving device and the test piece to be tested during the test.
[0082] Second, in addition to ensuring the requirements for smooth clockwise and counterclockwise loading of the test piece, the general tooling fixture is convenient for disassembly and assembly and has strong versatility, meeting the requirements for setting up the test bench for most control arm torsion static tests and torsion fatigue tests.
[0083] For those skilled in the art, the above invention disclosure is only an example and does not constitute a limitation to this application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are proposed in this application, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary implementation mode of this application.
[0084] At the same time, specific terms are used in this application to describe the embodiments of this application. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this application.
[0085] Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification is not necessarily the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.
[0086] Similarly, it should be noted that, in order to simplify the description of the disclosure of the present application and thus help the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of the present application, sometimes multiple features are incorporated into one embodiment, drawing or description thereof. However, this method of disclosure does not mean that the features required by the subject matter of the present application are more than those mentioned in the claims. In fact, the features of the embodiments are fewer than all the features of the individual embodiments disclosed above.
[0087] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.
Claims
1. A universal fixture for a control arm bushing torsion test, characterized in that: The universal fixture comprises: a height adjustment mechanism, a constraint mechanism, and a torsion test torque transmission device, wherein the constraint mechanism is installed on the height adjustment mechanism and moves up and down along the height adjustment mechanism; The torsion test torque transmission device is installed on the constraint mechanism, one end of the torsion test torque transmission device is connected to the torsion drive device, and the other end is connected to the test piece, so that the torsion test torque transmission device is coaxial with the torsion drive device.
2. The universal fixture for the control arm bushing torsion test according to claim 1, characterized in that: The height adjustment mechanism comprises a fixed base and at least two height adjustment rods, one end of each height adjustment rod is fixed on the fixed base, and the other end of each height adjustment rod extends upward.
3. The universal fixture for the control arm bushing torsion test as claimed in claim 2, characterized in that: The restraint mechanism comprises a lower restraint clamp and an upper restraint clamp, and the upper restraint clamp and the lower restraint clamp are engaged with each other up and down to fix the torsion test torque transmission device.
4. The universal fixture for the control arm bushing torsion test as claimed in claim 3, characterized in that: The torsion test torque transmission device comprises an adapter plate, an adapter connecting rod and a bushing loading tool, wherein the adapter plate is mounted on one end of the adapter connecting rod and is used to connect the torsion driving device; The bushing loading fixture is installed at the other end of the transfer connecting rod and is used to connect the test piece; The transfer link is fixed between the upper restraint clamp and the lower restraint clamp.
5. The universal fixture for the control arm bushing torsion test as claimed in claim 4, characterized in that: A rolling bearing and a retaining spring are also provided between the upper restraining clamp and the lower restraining clamp, and the transfer connecting rod is installed in the rolling bearing and fixed by the retaining spring.
6. The universal fixture for the control arm bushing torsion test as claimed in claim 5, characterized in that: The upper restraining clamp is provided with a first groove, the lower restraining clamp is provided with a second groove, the upper restraining clamp and the lower restraining clamp are mutually embraced to form an accommodating cavity, and the rolling bearing is installed in the accommodating cavity.
7. The universal fixture for the control arm bushing torsion test as claimed in claim 4, characterized in that: The transfer plate and the transfer connecting rod are connected by a flat key.
8. The universal fixture for the control arm bushing torsion test as claimed in claim 4, characterized in that: The transfer connecting rod and the bushing loading tooling are connected via an annular bolt group.
9. The universal fixture for the control arm bushing torsion test as claimed in claim 4, characterized in that: The bushing loading tool is L-shaped.
10. The universal fixture for the control arm bushing torsion test as claimed in claim 4, characterized in that: The adapter plate is provided with a plurality of evenly distributed mounting holes for mounting the torsion drive device.