A testing device for automotive parts

Abstract

This utility model discloses a testing device for automotive parts, comprising: a base with a recessed top providing a testing space and a horizontal moving unit mounted on the base. The horizontal moving unit includes a sliding plate located within the testing space and capable of moving within the testing space. A first scale with its length direction aligned with the sliding direction of the sliding plate is mounted on the top of the base. A first pointer matching the first scale is mounted on the sliding plate. A first arc-shaped groove with its axial direction aligned with the sliding direction of the sliding plate is recessed on the bottom wall of the testing space. When a cylindrical part is placed into the first arc-shaped groove, its position and orientation are automatically corrected. This automatic correction of the cylindrical part's position improves the accuracy of the testing values ​​and increases testing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing, specifically to a testing device for automotive components. Background Technology

[0002] Among automotive components, there are often columnar structures. With increasingly stringent precision requirements for automotive parts, the length and diameter of columnar components need to be measured before installation, such as piston pins and pistons. The piston reciprocates within the engine cylinder, bearing combustion pressure, and drives the crankshaft to rotate via the connecting rod. The piston pin connects the piston and the small end of the connecting rod, transmitting the immense pressure borne by the piston to the connecting rod.

[0003] In the existing technology, most of the measurement of automotive parts is done manually. When measuring length manually, the part needs to be placed horizontally on the worktable. At this time, the part is not only easy to roll and fall, but also the part is not conducive to inspection. During the inspection, the axis of the part must be parallel to the inspection scale, otherwise there will be problems with inaccurate inspection. Therefore, it is necessary to design an inspection device for automotive parts. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to overcome the issue in the prior art where the axis of a cylindrical part is easily not parallel to the scale when inspecting it, which affects the accuracy of the inspection.

[0005] To achieve the above objectives, this utility model provides a testing device for automotive parts, comprising: a base with a recessed top and a testing space, and a horizontal moving unit mounted on the base.

[0006] The horizontal moving unit includes a sliding plate located within the detection space and capable of moving within the detection space. The top of the base is equipped with a first scale whose length direction is consistent with the sliding direction of the sliding plate. The sliding plate is equipped with a first pointer that matches the first scale. The bottom wall of the detection space is recessed with a first arc-shaped groove whose axial direction is consistent with the moving direction of the sliding plate.

[0007] Preferably, the horizontal moving unit further includes a first threaded rod that is threaded through the slide plate and whose two ends are respectively axially connected to the top of the base and whose length direction is consistent with the axis direction of the first arc groove, and a motor that is assembled on the base and whose output end is fixedly connected to one end of the first threaded rod;

[0008] The bottom of the slide plate is provided with an arc-shaped part that slides in contact with the first arc-shaped groove, and the axis of the first arc-shaped groove is offset from the axis of the first threaded rod.

[0009] Preferably, the base is equipped with a diameter detection unit located away from the motor. The diameter detection unit includes a lifting plate that is vertically slidably connected to the inner wall of the detection space, a second pointer that is fixedly connected to the lifting plate and extends outward through the base, and a second scale that is mounted on the outer wall of the base and matches the second pointer.

[0010] Preferably, the detection space is provided with recessed installation spaces on both side walls next to the first arc-shaped groove;

[0011] The horizontal moving unit also includes a pair of transmission mechanisms symmetrically arranged about the first threaded rod and a pair of strip sliders located in corresponding installation spaces and slidably connected to the installation spaces along the length direction of the first threaded rod. The length direction of the strip sliders is consistent with the length direction of the first threaded rod. The transmission mechanism includes a second threaded rod parallel to the first threaded rod, with one end near the motor shaft connected to the base and the other end threadedly inserted into the strip slider. The second threaded rod is located in the installation space.

[0012] The top of the installation space is recessed and provided with a vertical slide groove. Both ends of the lifting plate are respectively provided with sliders that are slidably connected to the corresponding vertical slide grooves. The end of the strip slider away from the motor is provided with a wedge for pushing the slider upward. The diameter detection unit also includes an elastic element that presses against the top of the lifting plate.

[0013] Preferably, the motor is mounted on the top of the base via a mounting plate, and the transmission mechanism further includes a first connecting shaft parallel to the first threaded rod and axially connected to the mounting plate, and a second connecting shaft parallel to the first connecting shaft and axially connected to the mounting plate.

[0014] The first connecting shaft is driven to the first threaded rod via a first synchronous belt and a pair of first synchronous pulleys. The second connecting shaft is driven to the first connecting shaft via a pair of meshing gears. The second connecting shaft is driven to the second threaded rod via a second synchronous belt and a pair of second synchronous pulleys.

[0015] Preferably, the elastic element is a spring whose lower end is fixedly connected to the lifting plate, and the top of the spring is assembled on the top of the vertical slide groove.

[0016] Preferably, the bottom recess of the installation space is provided with a groove whose length direction is consistent with the length direction of the strip slider, and the bottom of the strip slider is equipped with a plurality of pulleys that are slidably assembled in the groove.

[0017] Preferably, the bottom of the lifting plate is recessed and provided with a second arc-shaped groove that matches the first arc-shaped groove.

[0018] According to the above technical solution, the beneficial effects of the automotive component testing device provided by this utility model in use are as follows:

[0019] The cylindrical part is placed into the first arc-shaped groove. After the cylindrical part is placed, its position and orientation are automatically corrected. The lowest point of the cylindrical part is in line contact with the lowest point of the first arc-shaped groove, so that the axis of the first arc-shaped groove is parallel to the axis of the cylindrical part. The automatic correction of the position of the cylindrical part can improve the accuracy of the detection value and improve the detection efficiency.

[0020] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of a testing device for automotive parts provided in this utility model;

[0023] Figure 2 This is a partial three-dimensional structural diagram of a testing device for automotive parts provided in this utility model. Figure 1 ;

[0024] Figure 3 This is a partial three-dimensional structural diagram of a testing device for automotive parts provided in this utility model. Figure 2 ;

[0025] Figure 4 This is a partial three-dimensional structural diagram of a testing device for automotive parts provided in this utility model. Figure 3 .

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Detection space; 2. Base; 3. Slide plate; 4. First scale; 5. First pointer; 6. First arc groove; 7. First threaded rod; 8. Motor; 9. Arc-shaped part; 10. Lifting plate; 11. Second pointer; 12. Second scale; 13. Installation space; 14. Strip slider; 15. Second threaded rod; 16. Vertical slide groove; 17. Slider part; 18. Wedge part; 19. Elastic element; 20. Mounting plate; 21. First connecting shaft; 22. Second connecting shaft; 23. First synchronous belt; 24. Gear; 25. Second synchronous belt; 26. Pulley; 27. Second arc groove. Detailed Implementation

[0028] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0029] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0030] like Figure 1-4 As shown, a detection device for automotive parts includes: a base 2 with a detection space 1 recessed at the top and a horizontal moving unit mounted on the base 2.

[0031] The horizontal moving unit includes a sliding plate 3 located within the detection space 1 and capable of moving within the detection space 1. The top of the base 2 is equipped with a first scale 4 whose length direction is consistent with the sliding direction of the sliding plate 3. The sliding plate 3 is equipped with a first pointer 5 that matches the first scale 4. The bottom wall of the detection space 1 is recessed with a first arc-shaped groove 6 whose axial direction is consistent with the moving direction of the sliding plate 3.

[0032] In the above technical solution, a cylindrical part is placed in the first arc-shaped groove 6. After the cylindrical part is placed, its position and orientation are automatically corrected. The lowest point of the cylindrical part is in line contact with the lowest point of the first arc-shaped groove 6, so that the axis of the first arc-shaped groove 6 is parallel to the axis of the cylindrical part. The cylindrical part is pushed so that it contacts the side wall of the detection space 1 away from the slide plate 3. Then the horizontal moving unit is activated, which drives the slide plate 3 to slide in the detection space 1. The slide plate 3 will abut against the end of the cylindrical part, and the dimension is read by the first pointer 5 and the first scale 4.

[0033] In a preferred embodiment of the present invention, the horizontal moving unit further includes a first threaded rod 7, which is threaded through the slide plate 3 and whose two ends are respectively axially connected to the top of the base 2 and whose length direction is consistent with the axis direction of the first arc groove 6, and a motor 8, which is mounted on the base 2 and whose output end is fixedly connected to one end of the first threaded rod 7.

[0034] The bottom of the slide plate 3 is provided with an arc-shaped part 9 that slides in contact with the first arc-shaped groove 6, and the axis of the first arc-shaped groove 6 is offset from the axis of the first threaded rod 7.

[0035] In the above technical solution, the cylindrical part can be placed through the operating space between the first threaded rod 7 and the top edge of the detection space 1. After the detection is completed, the cylindrical part can also be taken out through the operating space.

[0036] Because the arc-shaped part 9 fits into the first arc-shaped groove 6, and the axis of the first threaded rod 7 does not overlap with the axis of the first arc-shaped groove 6, the slide plate 3 is restricted from rotating around the axis of the first threaded rod 7, so that the slide plate 3 can only move along the axis of the first threaded rod 7. The motor 8 rotates and drives the first threaded rod 7 to rotate, and the first threaded rod 7 will drive the slide plate 3 to move, thereby contacting the cylindrical part.

[0037] In a preferred embodiment of the present invention, a diameter detection unit is mounted on the base 2 away from the motor 8. The diameter detection unit includes a lifting plate 10 that is vertically slidably connected to the inner wall of the detection space 1, a second pointer 11 that is fixedly connected to the lifting plate 10 and extends outward through the base 2, and a second scale 12 that is mounted on the outer wall of the base 2 and matches the second pointer 11.

[0038] In the above technical solution, after the cylindrical part is placed in the first arc-shaped groove 6, the slide plate 3 can move to measure the length of the cylindrical part. The lifting plate 10 in the diameter detection unit will move downward to contact the top of the cylindrical part. The lifting plate 10 will drive the second pointer 11 to move vertically. The diameter value of the cylindrical part can be read by the cooperation of the second pointer 11 and the second scale 12.

[0039] In a preferred embodiment of the present invention, the detection space 1 is provided with an installation space 13 recessed on both side walls of the two sides of the first arc-shaped groove 6.

[0040] The horizontal moving unit also includes a pair of transmission mechanisms arranged symmetrically about the first threaded rod 7 and a pair of strip sliders 14 located in the corresponding mounting spaces 13 and slidably connected to the mounting spaces 13 along the length direction of the first threaded rod 7. The length direction of the strip sliders 14 is consistent with the length direction of the first threaded rod 7. The transmission mechanism includes a second threaded rod 15 parallel to the first threaded rod 7, with one end near the motor 8 axially connected to the base 2 and the other end threadedly inserted into the strip slider 14. The second threaded rod 15 is located in the mounting space 13.

[0041] The top of the installation space 13 is recessed and provided with a vertical slide groove 16. Both ends of the lifting plate 10 are respectively provided with slider parts 17 that are slidably connected to the corresponding vertical slide groove 16. The end of the strip slider 14 away from the motor 8 is provided with a wedge part 18 for pushing the slider upward. The diameter detection unit also includes an elastic element 19 that is pressed against the top of the lifting plate 10.

[0042] In the above technical solution, after the cylindrical part is placed in the first arc-shaped groove 6, the end of the cylindrical part away from the motor 8 is pushed to contact the side wall of the detection space 1. That is, the cylindrical part will move to the bottom of the lifting plate 10. The motor 8 starts and drives the slide plate 3 to slide close to the cylindrical part. At the same time, it will drive the second threaded rod 15 to rotate through the transmission mechanism. The second threaded rod 15 will drive the strip slider 14 to slide close to the motor 8 in the installation space 13, so that the wedge part 18 and the slider part 17 are separated. The elastic element 19 will drive the lifting plate 10 to slide down and press on the cylindrical part. That is, the diameter value of the cylindrical part can be measured, and the cylindrical part can also be clamped.

[0043] When the wedge 18 separates from the slider 17, the slide plate 3 has not yet come into contact with the cylindrical part. Therefore, the lifting plate 10 presses down on the cylindrical part and acts as a clamping device, which can prevent the cylindrical part from shaking when measuring the length.

[0044] After the test is completed, the output shaft of the motor 8 rotates in the opposite direction, causing the first threaded rod 7 to slide and the second threaded rod 15 to rotate. The slide plate 3 slides close to the motor 8, and the strip slider 14 slides close to the slider part 17. The wedge part 18 will push the slider part 17 upward to return to its original position. In order to make the wedge part 18 able to smoothly push the slider part 17 upward, a corresponding notch can also be provided on the slider part 17 so that the tip of the wedge part 18 can push the slider part 17 upward.

[0045] In a preferred embodiment of the present invention, the motor 8 is mounted on the top of the base 2 via the mounting plate 20, and the transmission mechanism further includes a first connecting shaft 21 parallel to the first threaded rod 7 and axially connected to the mounting plate 20, and a second connecting shaft 22 parallel to the first connecting shaft 21 and axially connected to the mounting plate 20.

[0046] The first connecting shaft 21 is connected to the first threaded rod 7 via a first synchronous belt 23 and a pair of first synchronous pulleys. The second connecting shaft 22 is connected to the first connecting shaft 21 via a pair of meshing gears 24. The second connecting shaft 22 is connected to the second threaded rod 15 via a second synchronous belt 25 and a pair of second synchronous pulleys.

[0047] In the above technical solution, the first threaded rod 7 drives the first connecting shaft 21 to rotate via the first synchronous belt 23 and a pair of first synchronous pulleys. The first connecting shaft 21 drives the second connecting shaft 22 to rotate via a pair of gears 24. The second connecting shaft 22 drives the second threaded rod 15 to rotate via the second synchronous belt 25 and a pair of second synchronous pulleys. The strip slider 14 is provided with a threaded hole. When the second threaded rod 15 rotates, it drives the strip slider 14 to slide along its own length.

[0048] In a preferred embodiment of this utility model, the elastic element 19 is a spring whose lower end is fixedly connected to the lifting plate 10, and the top of the spring is assembled on the top of the vertical slide groove 16.

[0049] In a preferred embodiment of the present invention, the bottom of the mounting space 13 is recessed and provided with a groove whose length direction is consistent with the length direction of the strip slider 14, and the bottom of the strip slider 14 is equipped with a plurality of pulleys 26 that are slidably assembled in the groove.

[0050] In a preferred embodiment of the present invention, the bottom of the lifting plate 10 is recessed and provided with a second arc-shaped groove 27 that matches the first arc-shaped groove 6.

[0051] In the above technical solution, the top of the second arc groove 27 will contact the top line of the cylindrical part, and the bottom of the cylindrical part will contact the bottom line of the first arc groove 6, which can further improve the positioning accuracy, thereby improving the detection accuracy.

[0052] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0054] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A testing device for automotive parts, characterized in that, include: A base (2) with a detection space (1) is recessed at the top and a horizontal moving unit is mounted on the base (2); The horizontal moving unit includes a sliding plate (3) located in the detection space (1) and capable of moving within the detection space (1). The top of the base (2) is equipped with a first scale (4) whose length direction is consistent with the sliding direction of the sliding plate (3). The sliding plate (3) is equipped with a first pointer (5) that matches the first scale (4). The bottom wall of the detection space (1) is recessed with a first arc-shaped groove (6) whose axial direction is consistent with the moving direction of the sliding plate (3).

2. The testing device for automotive parts according to claim 1, characterized in that, The horizontal moving unit also includes a first threaded rod (7) that is threaded through the slide plate (3) with its two ends respectively connected to the top of the base (2) and its length direction is consistent with the axis direction of the first arc groove (6), and a motor (8) that is mounted on the base (2) and whose output end is fixedly connected to one end of the first threaded rod (7). The bottom of the slide plate (3) is provided with an arc-shaped part (9) that slides in contact with the first arc-shaped groove (6), and the axis of the first arc-shaped groove (6) is offset from the axis of the first threaded rod (7).

3. The testing device for automotive parts according to claim 2, characterized in that, The base (2) is equipped with a diameter detection unit located away from the motor (8). The diameter detection unit includes a lifting plate (10) that is vertically slidably connected to the inner wall of the detection space (1), a second pointer (11) that is fixedly connected to the lifting plate (10) and extends outward through the base (2), and a second scale (12) that is mounted on the outer wall of the base (2) and matches the second pointer (11).

4. The testing device for automotive parts according to claim 3, characterized in that, The detection space (1) is provided with an installation space (13) on both side walls of the first arc groove (6). The horizontal moving unit also includes a pair of transmission mechanisms arranged symmetrically about the first threaded rod (7) and a pair of strip sliders (14) located in the corresponding installation spaces (13) and slidably connected to the installation spaces (13) along the length direction of the first threaded rod (7). The length direction of the strip sliders (14) is consistent with the length direction of the first threaded rod (7). The transmission mechanism includes a second threaded rod (15) that is parallel to the first threaded rod (7) with one end close to the motor (8) and shaft-connected to the base (2) and the other end threadedly inserted into the strip sliders (14). The second threaded rod (15) is located in the installation space (13). The top of the installation space (13) is recessed and provided with a vertical slide groove (16). Both ends of the lifting plate (10) are respectively provided with slider parts (17) that are slidably connected to the corresponding vertical slide groove (16). The end of the strip slider (14) away from the motor (8) is provided with a wedge part (18) for pushing the slider upward. The diameter detection unit also includes an elastic element (19) pressed against the top of the lifting plate (10).

5. The testing device for automotive parts according to claim 4, characterized in that, The motor (8) is mounted on the top of the base (2) via the mounting plate (20). The transmission mechanism also includes a first connecting shaft (21) parallel to the first threaded rod (7) and axially connected to the mounting plate (20) and a second connecting shaft (22) parallel to the first connecting shaft (21) and axially connected to the mounting plate (20). The first connecting shaft (21) is connected to the first threaded rod (7) via a first synchronous belt (23) and a pair of first synchronous pulleys. The second connecting shaft (22) is connected to the first connecting shaft (21) via a pair of meshing gears (24). The second connecting shaft (22) is connected to the second threaded rod (15) via a second synchronous belt (25) and a pair of second synchronous pulleys.

6. The testing device for automotive parts according to claim 4, characterized in that, The elastic element (19) is a spring whose lower end is fixedly connected to the lifting plate (10), and the top of the spring is mounted on the top of the vertical slide groove (16).

7. The testing device for automotive parts according to claim 4, characterized in that, The bottom recess of the installation space (13) is provided with a groove whose length direction is consistent with the length direction of the strip slider (14), and the bottom of the strip slider (14) is equipped with a number of pulleys (26) that are slidably assembled in the groove.

8. The testing device for automotive parts according to claim 3, characterized in that, The bottom of the lifting plate (10) is recessed and provided with a second arc groove (27) that matches the first arc groove (6).

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