Automobile wire harness stretching test bench

Abstract

The utility model discloses an automobile wire harness stretching test bench, and relates to the field of stretching test benches. The wire harness stretching device comprises a fixing table and a wire harness, the fixing table comprises a stretching mechanism, the stretching mechanism comprises a supporting frame fixedly connected to the left side of the fixing table, a motor is fixedly connected to the inner wall of the supporting frame, and the output end of the motor is fixedly connected with a two-way threaded rod through a coupler. Through the arrangement of the stretching mechanism, after the two ends of the wire harness are fixed, a motor can be driven to drive a bidirectional threaded rod to rotate, so that two sliding blocks on a sliding groove are far away from each other, a transverse stretching test is carried out on the wire harness, and meanwhile, two hydraulic cylinders can drive an L-shaped supporting rod to move upwards; according to the testing device, the vertical tensile test is performed on the wire harness, the testing accuracy is improved, the comprehensive evaluation on the stress state of the wire harness is ensured, and the testing device can simulate various stress conditions possibly encountered by the wire harness in a real use environment under the condition of transverse and vertical dual tests.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tensile test bench, especially, relate to a kind of automobile wire harness tensile test bench. BACKGROUND

[0002] In prior art, after retrieval, it is found that Chinese patent discloses "a kind of automobile wire harness tensile test bench", its announcement number is "CN221465083U", the patent is mainly clamped and fixed by electric push rod, wherein, when clamping plate is pressed down, buffer spring can play certain buffering effect, so as to avoid clamping bad automobile wire harness, and then the accuracy of test result is guaranteed, and practicality is higher.

[0003] But the above-mentioned device is only to the wire harness for horizontal tensile test when stretching, test data is not comprehensive enough, so in practical application, the performance of wire harness under various working conditions can not be fully reflected, this limitation not only affects the reliability of test result, also makes subsequent engineering application and design optimization be restricted. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of automobile wire harness tensile test bench, by being provided with hydraulic cylinder, wire harness is vertically stretched and tested, not only improve the accuracy of test, also ensure the comprehensive evaluation of wire harness stress state, solve the problem that the above-mentioned device is only to the wire harness for horizontal tensile test when stretching, test data is not comprehensive enough.

[0005] To solve the above technical problem, the utility model is realized by the following technical scheme:

[0006] The utility model is a kind of automobile wire harness tensile test bench, including fixed platform and wire harness, the fixed platform includes stretching mechanism,

[0007] The stretching mechanism includes support frame fixedly connected on the left side of fixed platform, the inner wall of support frame is fixedly connected with motor, the output end of motor is fixedly connected with bidirectional screw rod through shaft coupling, bidirectional screw rod rotates and penetrates in fixed platform, the inner wall of stretching mechanism is provided with sliding slot, two sliding blocks are slidably connected in the inner wall of sliding slot, two sliding blocks are all threadedly sleeved on the outer wall of bidirectional screw rod, the top surface of fixed platform is provided with recess, the top surface of fixed platform is fixedly connected with fixed frame two, two sliding blocks are symmetrically arranged with fixed frame two as center shaft, the top surface of two sliding blocks is all fixedly connected with hydraulic cylinder, two hydraulic cylinders are all arranged in the inside of recess, the output end of two hydraulic cylinders is all fixedly connected with fixed assembly, two fixed assemblies are symmetrically arranged with fixed frame two as center shaft.

[0008] Further, the fixing assembly comprises two L-shaped supporting rods fixedly connected to the output end of the hydraulic cylinder, and the inner wall of each L-shaped supporting rod is fixedly connected with two sliding rails.

[0009] Further, the outer wall of the clamping pad one is fixedly connected with two sliding rods, and the clamping pad two is slidably sleeved on the outer wall of the two sliding rods.

[0010] Further, the outer wall of each sliding rod is wound with a spring, one end of the spring is fixedly connected with the sliding rod, and the other end of the spring is fixedly connected with the clamping pad two.

[0011] Further, the top end of each sliding rod is fixedly connected with a gasket, the L-shaped supporting rod is rotatably connected with a rotating rod, one end of the rotating rod close to the clamping pad two is fixedly connected with an arc-shaped push plate, and the other end of the rotating rod away from the arc-shaped push plate is fixedly connected with a handle.

[0012] Further, the top surface of the L-shaped supporting rod is fixedly connected with a fixed frame one, and the inner wall of the fixed frame one is rotatably connected with a pulley one.

[0013] Further, the inner wall of the fixed frame two is rotatably connected with a pulley two, the wire harness sequentially passes through the inside of the fixed frame one and the fixed frame two, and the wire harness is in contact with the pulley one and the pulley two respectively.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting up the stretching mechanism, the two ends of the wire harness can be placed in the inside of the two L-shaped supporting rods before stretching the wire harness, so that the wire harness sequentially passes through the inside of the fixed frame one and the fixed frame two, at this time, the handle can be rotated to drive the rotating rod and the arc-shaped push plate to rotate, so that the gasket and the clamping pad two are simultaneously away from each other, the gasket moves upward, the sliding rod and the clamping pad one are driven to move upward, the spring is compressed at the same time, the clamping pad two and the clamping pad one are close to each other to clamp and fix the two ends of the wire harness, and the arc-shaped push plate contacts the gasket and the clamping pad two to generate extrusion force, and the arc-shaped push plate, the gasket and the clamping pad two all have certain friction force, so that after clamping and fixing the wire harness, self-locking can be realized to prevent the two ends of the wire harness from loosening after clamping to cause inaccurate test.

[0016] 2、By being provided with the support frame and the motor, after fixing the two ends of the wire harness, the motor can be driven to rotate the bidirectional threaded rod, so that the two sliding blocks on the sliding groove move away from each other, the wire harness is transversely stretched and tested, and meanwhile the two hydraulic cylinders can drive the L-shaped support rod to move upward, the wire harness is vertically stretched and tested, the testing precision is improved, the stress state of the wire harness is comprehensively evaluated, in the case of transverse and vertical double testing, the testing device can simulate various stress conditions that the wire harness may encounter in the real use environment, and important data support is provided for subsequent product improvement and quality control.

[0017] Of course, it is not necessary for any product implementing the present application to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the fixed table of the present application;

[0021] Figure 3 It is a schematic diagram of the structure of the fixed frame two of the present application;

[0022] Figure 4 It is Figure 2 It is an enlarged structure schematic diagram of position A in the middle;

[0023] Figure 5 It is Figure 2 It is an enlarged structure schematic diagram of position B in the middle.

[0024] In the drawings, the component list represented by each reference numeral is as follows:

[0025] 1, fixed table; 2, stretching mechanism; 3, wire harness; 21, support frame; 22, motor; 23, bidirectional threaded rod; 24, sliding groove; 25, sliding block; 26, groove; 27, hydraulic cylinder; 28, fixed assembly; 281, L-shaped support rod; 282, clamping pad one; 2821, sliding rail; 283, sliding rod; 284, clamping pad two; 285, spring; 286, gasket; 287, rotating rod; 288, arc-shaped push plate; 289, handle; 29, fixed frame one; 291, pulley one; 292, fixed frame two; 293, pulley two. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5 The utility model discloses a kind of automobile wiring harness tensile test benches, including fixed platform 1 and wiring harness 3, fixed platform 1 includes stretching mechanism 2,

[0028] Stretching mechanism 2 includes support frame 21 fixedly connected on the left side of fixed platform 1, the inner wall of support frame 21 is fixedly connected with motor 22, the output end of motor 22 is fixedly connected with bidirectional screw rod 23 through coupling, bidirectional screw rod 23 rotates and penetrates in fixed platform 1, the inner wall of stretching mechanism 2 is provided with sliding slot 24, two sliding blocks 25 are slidably connected in the inner wall of sliding slot 24, two sliding blocks 25 are all screw sleeve on the outer wall of bidirectional screw rod 23, the top surface of fixed platform 1 is provided with recess 26, the top surface of fixed platform 1 is fixedly connected with fixed frame two 292, two sliding blocks 25 are symmetrically arranged with fixed frame two 292 as central axis, the top surface of two sliding blocks 25 is fixedly connected with hydraulic cylinder 27, two hydraulic cylinders 27 are all arranged in the inside of recess 26, the output end of two hydraulic cylinders 27 is fixedly connected with fixed assembly 28, two fixed assemblies 28 are symmetrically arranged with fixed frame two 292 as central axis, by being provided with support frame 21 and motor 22, after the both ends of wiring harness 3 are fixed, motor 22 can be driven to make bidirectional screw rod 23 rotate, so that two sliding blocks 25 on sliding slot 24 are away from each other, wiring harness 3 is tested in transverse direction, while two hydraulic cylinders 27 can drive L-shaped support rod 281 to move upwards, wiring harness 3 is tested in vertical direction, not only improve the accuracy of test, also ensure that the stress state of wiring harness 3 is comprehensively evaluated, in the case of transverse and vertical double testing, test device can simulate various stress conditions that wiring harness 3 may encounter in real use environment, provide important data support for subsequent product improvement and quality control.

[0029] The fixed assembly 28 comprises two L-shaped supporting rods 281 fixedly connected to the output end of the hydraulic cylinder 27, the inner wall of the L-shaped supporting rod 281 is fixedly connected with two sliding rails 2821, the outer wall of the two sliding rails 2821 is slidably connected with a clamping pad one 282 and a clamping pad two 284 respectively, the outer wall of the clamping pad one 282 is fixedly connected with two sliding rods 283, the clamping pad two 284 is slidably sleeved on the outer wall of the two sliding rods 283, the outer wall of the two sliding rods 283 is wound with a spring 285, one end of the spring 285 is fixedly connected with the sliding rod 283, the other end of the spring 285 is fixedly connected with the clamping pad two 284, the top end of the two sliding rods 283 is fixedly connected with a gasket 286, the L-shaped supporting rod 281 is rotatably connected with a rotating rod 287, one end of the rotating rod 287 close to the clamping pad two 284 is fixedly connected with an arc-shaped push plate 288, the other end of the rotating rod 287 away from the arc-shaped push plate 288 is fixedly connected with a handle 289, the top surface of the L-shaped supporting rod 281 is fixedly connected with a fixed frame one 29, the inner wall of the fixed frame one 29 is rotatably connected with a pulley one 291, the inner wall of a fixed frame two 292 is rotatably connected with a pulley two 293, the wire harness 3 passes through the inside of the fixed frame one 29 and the fixed frame two 292 in sequence, the wire harness 3 is in contact with the pulley one 291 and the pulley two 293 respectively; by arranging the stretching mechanism 2, before stretching the wire harness 3, the two ends of the wire harness 3 can be respectively placed in the inside of the two L-shaped supporting rods 281, so that the wire harness 3 passes through the inside of the fixed frame one 29 and the fixed frame two 292 in sequence, at this time, the handle 289 can be rotated to drive the rotating rod 287 and the arc-shaped push plate 288 to rotate, so that the gasket 286 and the clamping pad two 284 are away from each other, the gasket 286 moves upward to drive the sliding rod 283 and the clamping pad one 282 to move upward, the spring 285 is compressed at the same time, the clamping pad two 284 and the clamping pad one 282 are close to each other to clamp and fix the two ends of the wire harness 3, and the arc-shaped push plate 288 contacts the gasket 286 and the clamping pad two 284 to generate extrusion force, and the arc-shaped push plate 288, the gasket 286 and the clamping pad two 284 all have certain friction force between them, so that after clamping and fixing the wire harness 3, self-locking fixation can be realized to prevent the two ends of the wire harness 3 from loosening after clamping to cause inaccurate test.

[0030] One specific application of the embodiment is that: by providing the stretching mechanism 2, before stretching the wire harness 3, the two ends of the wire harness 3 can be respectively placed inside the two L-shaped supporting rods 281, so that the wire harness 3 passes through the inside of the fixed frame one 29 and the fixed frame two 292 in turn, at this time, the handle 289 can be rotated to drive the rotating rod 287 and the arc-shaped push plate 288 to rotate, so that the gasket 286 and the clamping pad block two 284 are away from each other, the gasket 286 moves upward to drive the sliding rod 283 and the clamping pad block one 282 to move upward, while the spring 285 is compressed, the clamping pad block two 284 and the clamping pad block one 282 are close to each other to clamp and fix the two ends of the wire harness 3, and the arc-shaped push plate 288 contacts the gasket 286 and the clamping pad block two 284 to generate extrusion force, and the arc-shaped push plate 288, the gasket 286 and the clamping pad block two 284 all have certain friction force, so that after clamping and fixing the wire harness 3, self-locking fixation can be realized to prevent the two ends of the wire harness 3 from loosening after clamping to cause inaccurate testing;

[0031] By providing the supporting frame 21 and the motor 22, after fixing the two ends of the wire harness 3, the motor 22 can be driven to drive the bidirectional threaded rod 23 to rotate, so that the two sliding blocks 25 on the sliding groove 24 are away from each other to horizontally stretch and test the wire harness 3, and at the same time, the two hydraulic cylinders 27 can drive the L-shaped supporting rods 281 to move upward to vertically stretch and test the wire harness 3, which not only improves the accuracy of testing, but also ensures comprehensive evaluation of the stress state of the wire harness 3, and under the condition of horizontal and vertical double testing, the testing device can simulate various stress conditions that the wire harness 3 may encounter in the real use environment, thereby providing important data support for subsequent product improvement and quality control.

[0032] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. An automobile wire harness stretch test bench, comprising a fixed table (1) and a wire harness (3), the fixed table (1) comprising a stretching mechanism (2), characterized in that: the stretching mechanism (2) comprises a support frame (21) fixedly connected to the left side of the fixed table (1), the inner wall of the support frame (21) is fixedly connected with a motor (22), the output end of the motor (22) is fixedly connected with a bidirectional threaded rod (23) through a shaft coupling, the bidirectional threaded rod (23) penetrates through the fixed table (1) in rotation, the inner wall of the stretching mechanism (2) is provided with a sliding groove (24), the inner wall of the sliding groove (24) is slidably connected with two sliding blocks (25), the two sliding blocks (25) are threadedly sleeved on the outer wall of the bidirectional threaded rod (23), the top surface of the fixed table (1) is provided with a groove (26), the top surface of the fixed table (1) is fixedly connected with a fixed frame two (292), the two sliding blocks (25) are symmetrically arranged with the fixed frame two (292) as the center axis, the top surface of each of the two sliding blocks (25) is fixedly connected with a hydraulic cylinder (27), the two hydraulic cylinders (27) are arranged in the interior of the groove (26), the output end of each of the two hydraulic cylinders (27) is fixedly connected with a fixed assembly (28), and the two fixed assemblies (28) are symmetrically arranged with the fixed frame two (292) as the center axis.

2. The automotive wire harness stretch test bench of claim 1, wherein, The fixed assembly (28) comprises an L-shaped support rod (281) fixedly connected to the output end of the hydraulic cylinder (27), and the inner wall of the L-shaped support rod (281) is fixedly connected with two sliding rails (2821), and the outer walls of the two sliding rails (2821) are slidably connected with a clamping pad one (282) and a clamping pad two (284), respectively.

3. The automotive wire harness stretch test bench of claim 2, wherein, The outer wall of the clamping pad one (282) is fixedly connected with two sliding rods (283), and the clamping pad two (284) is slidably sleeved on the outer walls of the two sliding rods (283).

4. The automotive wire harness stretch test bench of claim 3, wherein, The outer walls of the two sliding rods (283) are each wound with a spring (285), one end of the spring (285) is fixedly connected with the sliding rod (283), and the other end of the spring (285) is fixedly connected with the clamping pad two (284).

5. The automotive wire harness stretch test bench of claim 4, wherein, The top ends of the two sliding rods (283) are fixedly connected with a gasket (286), the L-shaped support rod (281) is rotatably connected with a rotating rod (287), one end of the rotating rod (287) close to the clamping pad two (284) is fixedly connected with an arc-shaped push plate (288), and the other end of the rotating rod (287) away from the arc-shaped push plate (288) is fixedly connected with a handle (289).

6. The automotive wire harness stretch test bench of claim 5, wherein, The top surface of the L-shaped support rod (281) is fixedly connected with a fixed frame one (29), and the inner wall of the fixed frame one (29) is rotatably connected with a pulley one (291).

7. The automotive wire harness stretch test bench of claim 6, wherein, The inner wall of the fixed frame two (292) is rotatably connected with a pulley two (293), the wire harness (3) sequentially penetrates through the interiors of the fixed frame one (29) and the fixed frame two (292), and the wire harness (3) is respectively in contact with the pulley one (291) and the pulley two (293).

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