Automobile gearbox wire harness tensile resistance detection instrument

Abstract

The utility model discloses a tensile resistance detection instrument for an automobile gearbox wire harness. The tensile resistance detection instrument comprises a horizontally placed base and a vertical partition plate arranged on the base, a first transverse plate is installed on the inner wall of the vertical partition plate, a servo motor is fixed to the upper portion of the first transverse plate through a bolt, the output end of the servo motor is connected with a connecting lead screw, and the bottom end of the connecting lead screw penetrates through a second transverse plate to be connected with a base bearing. A first pressing plate is arranged below the first transverse plate, a second pressing plate is arranged above the second transverse plate, fixing holes are formed in the first pressing plate and the second pressing plate, wire harnesses can be threaded through the fixing holes, and the upper surface of the first pressing plate is connected with the first transverse plate through a supporting rod. According to the automobile gearbox wire harness tensile resistance detection instrument, when the push plate moves, the guide rod is driven to move together, and the moving distance of the push plate can be observed through the scale lines, so that wire harness detection is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile gearbox wire harness detection, in particular to an automobile gearbox wire harness tensile force detection instrument. Background Art

[0002] The transmission wiring harness is an indispensable part of the automobile. The automobile wiring harness includes wiring terminals and wires and cables. The wiring terminals are crimped on the ends of the wires and cables. In order to ensure the tensile performance of the transmission wiring harness during use, the automobile transmission wiring harness is usually tested for tensile strength during production and processing.

[0003] For example, the announcement number CN210719958U discloses a wire harness tension detection device, including a base plate, a peak force gauge is fixed to one side of the top of the base plate by bolts, the pull rod of the peak force gauge is connected to a first clamping mechanism, a bearing seat is symmetrically installed on the other side of the top of the base plate by bolts, a reciprocating screw is rotatably connected to the bearing seat, a slider is slidably connected to the reciprocating screw, a second clamping mechanism is fixed to the top of the slider by bolts, a reducer connected to the reciprocating screw is fixed to one side of the bearing seat by bolts, the input end of the reducer is connected to a stepper motor installed on the reducer, a rotary encoder is installed on the output end of the stepper motor, one side of the base plate is connected to an electric control box by wires, and a touch screen is fixed to the electric control box by bolts. The utility model has a novel structure and an ingenious conception, can apply a uniform tension to the wire harness, and can effectively improve the accuracy of the wire harness tension test;

[0004] However, the detection device in the above application still has some shortcomings during use. For example, when detecting the wire harness, the tension test is performed by a peak tension meter. When the peak tension meter is damaged, the wire harness cannot be detected, which will affect the normal progress of the wire harness detection work, thereby reducing the use effect of the detection device. Therefore, we propose an automobile gearbox wire harness tensile force detection instrument to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an instrument for detecting the tensile strength of a wiring harness of an automobile transmission, so as to solve the problem that the detection device currently on the market, when detecting the wiring harness, relies on a peak force meter to perform tensile force detection. When the peak force meter is damaged, the wiring harness cannot be detected, which affects the normal detection of the wiring harness, thereby reducing the use effect of the detection device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile gearbox wire harness tensile force detection instrument, comprising a horizontally placed base and a vertical partition plate arranged on the base;

[0007] Also includes:

[0008] A first horizontal plate is installed on the inner wall of the vertical partition, and a servo motor is fixed on the top of the first horizontal plate by bolts, and the output end of the servo motor is connected to a connecting screw rod, and the bottom end of the connecting screw rod passes through the second horizontal plate and is connected to the base bearing;

[0009] A first pressing plate is provided below the first horizontal plate, and a second pressing plate is provided above the second horizontal plate. Fixing holes are provided on the first pressing plate and the second pressing plate for threading the wiring harness. The upper surface of the first pressing plate is connected to the first horizontal plate through a support rod, and the lower surface of the second pressing plate is connected to the second horizontal plate through a support rod.

[0010] An airbag is arranged below the second horizontal plate, and the bottom of the airbag is connected to the supporting plate, and a pressure sensor is installed at the bottom of the supporting plate. Meanwhile, the pressure sensor is connected to the controller signal, and the test information can be displayed on the display screen on the controller for easy viewing.

[0011] Preferably, the first transverse plate and the vertical partition plate are connected by welding, the connecting screw and the second transverse plate are connected by threads, and a limiting block is provided on the left side of the second transverse plate.

[0012] Preferably, the limit block and the second transverse plate are connected by welding, and two limit blocks are provided, and both limit blocks are connected to the vertical partition plate by sliding connection.

[0013] Preferably, the first pressing plate and the second pressing plate are both provided with a bidirectional telescopic rod, and the output end of the bidirectional telescopic rod is connected to the fixed rod, and one end of the fixed rod away from the bidirectional telescopic rod is connected to the clamping block.

[0014] Preferably, the clamping blocks are provided in two groups, each group is provided with two clamping blocks, and the clamping blocks are in an arc shape.

[0015] Preferably, the right side of the airbag is connected to the box body through a connecting tube, and a push plate is provided inside the box body, and an elastic spring is installed between the push plate and the inner wall of the box body, and a guide rod is also installed on the outer surface of the push plate, and scale lines are provided on the surface of the box body.

[0016] Preferably, the push plate and the guide rod are welded, the guide rod and the box body are slidably connected, and a sealing ring is installed on the outer edge of the push plate close to the inner wall of the box body, so that the sealing inside the box body can be guaranteed when the push plate moves.

[0017] Compared with the prior art, the utility model has the following beneficial effects: in the automobile gearbox harness tensile force testing instrument, the airbag is connected to the box body through the connecting pipe, so that when the airbag is subjected to extrusion force, the gas inside the airbag will enter the box body through the connecting pipe, so that the push plate inside the box body moves, and then the moving distance of the push plate can be observed through the scale lines on the outer wall of the box body, as shown in the following content:

[0018] The right side of the airbag is connected to the box body through a connecting pipe, and a push plate is arranged inside the box body, and an elastic spring is installed between the push plate and the inner wall of the box body, and a guide rod is also installed on the outer surface of the push plate, and scale lines are arranged on the surface of the box body, so that when the airbag is squeezed, the gas inside the airbag will enter the box body through the connecting pipe, so that the amount of gas inside the box body increases;

[0019] Furthermore, the push plate and the guide rod are welded, and the guide rod and the box body are slidably connected, and a sealing ring is installed on the outer edge of the push plate close to the inner wall of the box body, so that when the push plate moves, the guide rod will move together, and the moving distance of the push plate can be viewed through the scale line, making the wire harness detection more accurate;

[0020] (3) The first horizontal plate and the vertical partition are welded, the connecting screw and the second horizontal plate are threaded, and a limit block is provided on the left side of the second horizontal plate, so that the connection between the first horizontal plate and the vertical partition is more secure and prevents the plate from falling during use. Moreover, when the connecting screw rotates, the second horizontal plate can be driven to move;

[0021] Furthermore, the limit block and the second transverse plate are welded, and two limit blocks are provided, and both limit blocks are slidably connected to the vertical partition plate, so that under the action of the limit blocks, the second transverse plate can move more stably and effectively prevent shaking;

[0022] (3) A bidirectional telescopic rod is provided on both the first pressing plate and the second pressing plate, and the output end of the bidirectional telescopic rod is connected to the fixed rod, and the end of the fixed rod away from the bidirectional telescopic rod is connected to the clamping block, so that the wiring harness can be clamped and limited by the clamping block to ensure the firmness of the wiring harness during detection and effectively prevent it from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0024] Figure 2 This is a bottom view of the structure of the first horizontal plate of the utility model;

[0025] Figure 3 For this utility model Figure 1The enlarged structural diagram at a in the middle;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the connection between the second horizontal plate and the limit block of the utility model;

[0027] Figure 5 This is a schematic diagram of the internal structure of the box body of the utility model;

[0028] Figure 6 It is a schematic diagram of the structure of the utility model in which the supporting plate and the airbag are separated.

[0029] In the figure: 1. base; 2. vertical partition; 3. first horizontal plate; 4. servo motor; 5. connecting screw; 6. second horizontal plate; 601, limit block; 7. first pressure plate; 8. second pressure plate; 9. two-way telescopic rod; 10. fixing rod; 11. clamping block; 12. fixing hole; 13. support rod; 14. airbag; 15. supporting plate; 16. pressure sensor; 17. controller; 18. connecting pipe; 19. box body; 20. push plate; 21. elastic spring; 22. guide rod; 23. scale line. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1: In this embodiment, the first pressing plate 7 and the second pressing plate 8 are used to clamp and limit the two ends of the wire harness to ensure the firmness of the wire harness during detection. Figure 1-Figure 3 As shown,

[0032] A first pressing plate 7 is provided below the first transverse plate 3, and a second pressing plate 8 is provided above the second transverse plate 6. Both the first pressing plate 7 and the second pressing plate 8 are provided with fixing holes 12 for threading the wiring harness. The upper surface of the first pressing plate 7 is connected to the first transverse plate 3 via a support rod 13, and the lower surface of the second pressing plate 8 is connected to the second transverse plate 6 via a support rod 13;

[0033] The first pressing plate 7 and the second pressing plate 8 are both provided with a bidirectional telescopic rod 9, and the output end of the bidirectional telescopic rod 9 is connected to the fixed rod 10, and the end of the fixed rod 10 away from the bidirectional telescopic rod 9 is connected to the clamping block 11, and the clamping block 11 is provided with two groups, and each group of the clamping blocks 11 is provided with two, and the clamping block 11 is in an arc shape;

[0034] When using the automobile gearbox wire harness tensile force testing instrument, first place the base 1 in the corresponding position, then wrap the wire harness to be tested around the support rod 13 on the upper surface of the first pressing plate 7 for several turns, then pass the wire harness through the fixing hole 12 on the first pressing plate 7, and then pass through the fixing hole 12 on the second pressing plate 8, and wrap the wire harness around the support rod 13 on the lower surface of the second pressing plate 8 for several turns, so that the wire harness can be ensured to be fastened, and then start the two-way telescopic rod 9, the two-way telescopic rod 9 will drive the fixing rod 10 to move, and the fixing rod 10 will drive the clamping block 11 to move together. Because the clamping block 11 is in an arc shape, the wire harness can be clamped and limited by the clamping block 11, and the firmness of the wire harness during the later detection can be ensured again. Since the clamping blocks 11 are provided below the first pressing plate 7 and above the second pressing plate 8, the two ends of the wire harness can be clamped;

[0035] Embodiment 2: In this embodiment, the tension of the wire harness is detected by the pressure sensor 16, as shown in FIG. Figure 4 As shown:

[0036] A first horizontal plate 3 is installed on the inner wall of the vertical partition 2, and a servo motor 4 is fixed on the top of the first horizontal plate 3 by bolts, and the output end of the servo motor 4 is connected to a connecting screw 5, and the bottom end of the connecting screw 5 passes through the second horizontal plate 6 and is connected to the bearing of the base 1;

[0037] The first transverse plate 3 and the vertical partition plate 2 are welded, the connecting screw rod 5 and the second transverse plate 6 are threaded, and a limit block 601 is provided on the left side of the second transverse plate 6, and the limit block 601 and the second transverse plate 6 are welded, and two limit blocks 601 are provided, and both limit blocks 601 are slidably connected to the vertical partition plate 2;

[0038] An air bag 14 is provided below the second horizontal plate 6, and the bottom of the air bag 14 is connected to the supporting plate 15, and a pressure sensor 16 is installed at the bottom of the supporting plate 15. At the same time, the pressure sensor 16 is connected to the controller 17 by signal, and the test information can be displayed on the display screen of the controller 17 for easy viewing;

[0039] Start the servo motor 4, which will drive the connecting screw rod 5 to rotate. Because the connecting screw rod 5 and the second cross plate 6 are threadedly connected, and a limit block 601 is set on the left side of the second cross plate 6, when the connecting screw rod 5 rotates, it will drive the second cross plate 6 to descend, so that the limit block 601 on the left side of the second cross plate 6 slides downward along the inner wall of the vertical partition 2, which can make the second cross plate 6 more stable when descending, and effectively prevent shaking. As the second cross plate 6 descends, the airbag 14 will be squeezed, and a supporting plate 15 is installed at the bottom of the airbag 14. A pressure sensor 16 is set at the bottom of the supporting plate 15. The pressure sensor 16 and the controller 17 are connected by signal, so when the airbag 14 is squeezed, the pressure sensor 16 will be subjected to pressure, so that the information will be displayed on the display screen of the controller 17, which is convenient for the staff to watch, and the pressure received by the pressure sensor 16 is the tension of the wire harness, and the tension of the wire harness is accurately read;

[0040] Embodiment 3: In this embodiment, when the airbag 14 is squeezed, the push plate 20 will move rightward. The moving distance of the push plate 20 can be judged in combination with the scale line 23, thereby improving the detection effect of the wiring harness. Figure 5-Figure 6 As shown:

[0041] The right side of the airbag 14 is connected to the box body 19 through a connecting pipe 18, and a push plate 20 is provided inside the box body 19, and an elastic spring 21 is installed between the push plate 20 and the inner wall of the box body 19, and a guide rod 22 is also installed on the outer surface of the push plate 20, and a scale line 23 is provided on the surface of the box body 19;

[0042] The push plate 20 and the guide rod 22 are welded, and the guide rod 22 and the box body 19 are slidably connected, and a sealing ring is installed on the outer edge of the push plate 20 close to the inner wall of the box body 19, so that when the push plate 20 moves, the sealing inside the box body 19 can be ensured;

[0043] At the same time, because the airbag 14 is connected to the box body 19 through the connecting tube 18, a push plate 20 is provided inside the box body 19. Therefore, when the airbag 14 is subjected to extrusion force, the gas inside the airbag 14 will be transported to the inside of the box body 19 through the connecting tube 18, thereby increasing the amount of gas inside the box body 19, which will cause the push plate 20 to move right, stretching the elastic spring 21, and the push plate 20 will drive the guide rod 22 to move right together. Under the action of the guide rod 22, the push plate 20 will move more smoothly. Since the box body 19 is made of transparent plastic and the outer surface of the box body 19 is provided with scale lines 23, the moving distance of the push plate 20 can be clearly viewed through the scale lines 23. In this way, with the use of the pressure sensor 16, the tension detection of the wiring harness can be more accurate and the detection effect can be improved. The above is the working process of the entire device. The contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automobile gearbox wire harness tensile force testing instrument, comprising a horizontally placed base (1) and a vertical partition (2) arranged on the base (1); It is characterized in that Also includes: A first horizontal plate (3) is installed on the inner wall of the vertical partition (2), and a servo motor (4) is fixed above the first horizontal plate (3) by bolts, and the output end of the servo motor (4) is connected to a connecting screw rod (5), and the bottom end of the connecting screw rod (5) passes through the second horizontal plate (6) and is connected to a bearing of the base (1); A first pressing plate (7) is arranged below the first transverse plate (3), and a second pressing plate (8) is arranged above the second transverse plate (6); both the first pressing plate (7) and the second pressing plate (8) are provided with fixing holes (12) for threading the wiring harness; the upper surface of the first pressing plate (7) is connected to the first transverse plate (3) via a support rod (13), and the lower surface of the second pressing plate (8) is connected to the second transverse plate (6) via a support rod (13); An air bag (14) is arranged below the second horizontal plate (6), and the bottom of the air bag (14) is connected to the supporting plate (15), and a pressure sensor (16) is installed at the bottom of the supporting plate (15). At the same time, the pressure sensor (16) and the controller (17) are connected by signal, so that the test information can be displayed on the display screen of the controller (17) for easy viewing.

2. The automobile gearbox wire harness tensile force testing instrument according to claim 1, characterized in that: The first transverse plate (3) and the vertical partition plate (2) are connected by welding, the connecting screw (5) and the second transverse plate (6) are connected by threads, and a limit block (601) is provided on the left side of the second transverse plate (6).

3. The automobile gearbox wire harness tensile force testing instrument according to claim 2 is characterized by: The limit block (601) and the second transverse plate (6) are connected by welding, two limit blocks (601) are provided, and both limit blocks (601) are connected to the vertical partition plate (2) in a sliding manner.

4. The automobile gearbox wire harness tensile force testing instrument according to claim 2, characterized in that: The first pressing plate (7) and the second pressing plate (8) are both provided with a bidirectional telescopic rod (9), the output end of the bidirectional telescopic rod (9) is connected to the fixed rod (10), and one end of the fixed rod (10) away from the bidirectional telescopic rod (9) is connected to the clamping block (11).

5. The automobile gearbox wire harness tensile force testing instrument according to claim 4, characterized in that: The clamping blocks (11) are provided in two groups, and each group of clamping blocks (11) is provided with two clamping blocks, and the clamping blocks (11) are in an arc shape.

6. The automobile gearbox wire harness tensile force testing instrument according to claim 1, characterized in that: The right side of the airbag (14) is connected to the box body (19) via a connecting pipe (18), a push plate (20) is provided inside the box body (19), and an elastic spring (21) is installed between the push plate (20) and the inner wall of the box body (19), and a guide rod (22) is also installed on the outer surface of the push plate (20), and a scale line (23) is provided on the surface of the box body (19).

7. The automobile gearbox wire harness tensile force testing instrument according to claim 6, characterized in that: The push plate (20) and the guide rod (22) are welded together, and the guide rod (22) and the box body (19) are slidably connected. A sealing ring is installed at the outer edge of the push plate (20) close to the inner wall of the box body (19), so that when the push plate (20) moves, the sealing inside the box body (19) can be ensured.

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