Spatial distance detection device for small connecting piece

Abstract

The utility model relates to the technical field of connecting piece detection, in particular to a small connecting piece space distance detection device which comprises a workpiece composed of a workpiece bent pipe, a workpiece bottom plate and workpiece holes, the workpiece is placed on a workpiece fixing table, and a plurality of positioning holes are preset on the workpiece fixing table corresponding to the positions of the workpiece holes. A positioning pin is arranged in the positioning hole, the top of the positioning pin partially extends to the position above the workpiece fixing table, the top end of the positioning pin abuts against the workpiece hole, a positioning sleeve is arranged at the position, corresponding to the workpiece hole, above the workpiece bottom plate, a beam plate is fixed to the top end of the positioning sleeve, and the top end of the positioning pin penetrates through the workpiece hole and extends into the positioning sleeve. According to the utility model, the positioning pin and the workpiece hole are firstly used for positioning, then the positioning sleeve is matched with the positioning pin, and the workpiece bottom plate is pressed down, so that a workpiece fixing effect is obtained, and during detection, the pressure given by the thousand fraction display meter to the workpiece elbow does not cause deviation of the workpiece, and further, the accuracy of a detection result can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of connector detection technology, specifically to a small connector spatial distance detection device. Background Technology

[0002] Workpiece dimensional inspection is a crucial step in manufacturing, aiming to ensure dimensional accuracy and prevent problems such as performance degradation, assembly difficulties, or failures caused by dimensional deviations. Simultaneously, the inspection results are used to evaluate the stability and reliability of the processing technology, providing a basis for process improvement. Furthermore, it ensures that workpieces meet relevant industry standards, national standards, or customer-specific requirements.

[0003] Small connectors are widely used in various mechanical equipment. The structure of small connectors varies depending on the specific installation requirements. For example, the metal connecting pipe of the engine exhaust valve has a roughly L-shaped structure. When using a dial indicator or micrometer to measure the length, since one end protrudes, a locating pin is needed to pass through the hole in the workpiece for positioning. However, due to the unavoidable machining error between the locating pin and the hole in the workpiece, when the measuring end of the dial indicator or micrometer touches the workpiece, the workpiece will shift within the error range. This shift error will be reflected in the final test result, resulting in an inaccurate final test result. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A small connector spatial distance detection device includes a workpiece consisting of a workpiece bend, a workpiece base plate, and a workpiece hole. The workpiece base plate is fixed to the bottom end of the workpiece bend, and the workpiece hole is located on the workpiece base plate. The workpiece is placed on a workpiece fixing platform. Multiple positioning holes are preset on the workpiece fixing platform corresponding to the workpiece hole position. Positioning pins are installed in the positioning holes, with the top part of the positioning pin extending above the workpiece fixing platform and the top end of the positioning pin abutting into the workpiece hole. A positioning sleeve is installed above the workpiece base plate corresponding to the workpiece hole position. A beam plate is fixed to the top end of the positioning sleeve, and the top end of the positioning pin passes through the workpiece hole and extends into the positioning sleeve.

[0006] Furthermore, a fixing sleeve is internally threaded onto the workpiece fixing platform at the bottom of the positioning hole. A positioning pin is located in the positioning hole above the fixing sleeve. A recess is pre-set at the bottom end of the positioning pin, and a spring is installed inside the recess. The two ends of the spring abut against and support the positioning pin and the fixing sleeve at corresponding positions. The spring can push the positioning pin to move up and down, thereby adaptively adjusting the extension length.

[0007] Furthermore, the workpiece fixing platform is fixed to the top of the inspection platform. A slide block is fixed to the left side of the top of the inspection platform, and a slide table that slides left and right along the slide block is installed on the slide block. The workpiece fixing platform is fixed to the top of the inspection platform to the right of the slide block. A digital display mounting base is fixed to the left side of the top of the slide table, and a per mille display meter is installed on the digital display mounting base. A positioning base aligned with the digital display mounting base is fixed to the right side of the top of the slide table. The positioning base has a hole through which a positioning rod that slides along the hole passes. The left end of the positioning rod abuts against the detection end of the per mille display meter, and the right end of the positioning rod abuts against the workpiece bend. The per mille display meter directly displays the detection numbers, facilitating data reading.

[0008] Furthermore, a limiting seat is fixed to the top of the detection stage between the right side of the slide and the workpiece fixing stage, and the top of the positioning pin above the workpiece fixing stage is set with a conical structure. The limiting seat limits the slide to the right to prevent it from coming out.

[0009] Furthermore, a bearing seat is fixed at the top of the testing platform corresponding to the front side of the slide. A rotating shaft is installed inside the bearing seat. A handle two is fixed at the front end of the rotating shaft, and a connecting arm is fixed at the rear end of the rotating shaft. A fixing rod is fixed at the right end of the front side of the slide. A hinge rod is hinged to the fixing rod and the connecting arm. The handle two facilitates the movement of the slide.

[0010] Furthermore, a column is fixed to the top of the testing platform corresponding to the rear side of the workpiece fixing platform. A horizontal support plate extending directly above the workpiece fixing platform is fixed to the top of the column. A hole is opened on the horizontal support plate corresponding to the center of the workpiece fixing platform, and a threaded sleeve is threaded into the hole. A handle is fixed to the top of the threaded sleeve, and a pressure rod is fixed to the bottom of the threaded sleeve. The top of the beam plate abuts against the bottom of the pressure rod at the corresponding position. The positioning sleeve needs to be tightened to prevent it from collapsing. The downward movement of the pressure rod can cooperate with the workpiece fixing platform to tighten it, ensuring that the workpiece base plate remains parallel to the workpiece fixing platform, thus ensuring the accuracy of the testing results.

[0011] Furthermore, a sliding sleeve is fixed at the opening position corresponding to the center of the workpiece fixing table on the top of the cross brace. A pressure rod two, which slides up and down along the sliding sleeve, is provided within the sliding sleeve and the opening. A hinge seat is fixed at the top of the pressure rod two, and a connecting rod is hinged to the hinge seat. A support seat is fixed at the front side of the sliding sleeve on the top of the cross brace. A handle three is hinged to the support seat via a pin two. The front end of the handle three is hinged to the top of the connecting rod at the corresponding position via a pin one. The downward and upward operation of the handle three is more convenient and faster than the rotation operation of the handle one.

[0012] Furthermore, a tension spring is installed between the side of the support base and the lever three near the pin one position. This allows the pressure lever two to apply continuous pressure to the positioning sleeve.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model first positions the workpiece by using a positioning pin and a workpiece hole, and then uses a positioning sleeve in conjunction with the positioning pin to press down the workpiece base plate at the same time, thereby achieving a fixed effect on the workpiece. During testing, the pressure applied to the workpiece bend by the per mille display will not cause the workpiece to shift, thus ensuring the accuracy of the test results.

[0015] 2. In this utility model, the top of the positioning pin is conical and works with a spring. When the positioning pin positions the workpiece hole, the positioning pin does not need to be fully inserted into the workpiece hole. It is only necessary to keep the positioning pin aligned with the workpiece hole and the workpiece base plate is fitted on the conical surface. At this time, the positioning pin has a centering effect. Moreover, the conical structure can be adapted to workpieces with workpiece holes of more different diameters.

[0016] 3. In this utility model, by setting a hinge rod and a handle, the rotating shaft can be easily rotated to drive the slide table to move using the hinge relationship, which facilitates operation and use.

[0017] 4. In this utility model, both pressure rod one and pressure rod two can press down on the positioning sleeve to press it tightly against the workpiece, preventing the detection end of the per mille display from pushing the workpiece off-center. This ensures reliable workpiece fixation and also helps to ensure the accuracy of the final detection results. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the detection structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the workpiece arrangement in this utility model;

[0021] Figure 4 This is a schematic diagram of the setting of the pressure rod one in this utility model;

[0022] Figure 5 This is a cross-sectional view of the locating pin in this utility model;

[0023] Figure 6 This is a schematic diagram of the setting of the pressure rod 2 in this utility model;

[0024] Figure 7 This is a schematic diagram of the tension spring arrangement in this utility model.

[0025] Reference numerals in the attached diagram: 1. Inspection table; 2. Slide; 3. Slide table; 4. Workpiece fixing table; 5. Digital display mounting base; 6. Per mille display; 7. Positioning seat; 8. Positioning rod; 9. Column; 10. Cross brace; 11. Pressure rod one; 12. Threaded sleeve; 13. Handle rod one; 14. Positioning sleeve; 15. Beam plate; 16. Positioning pin; 17. Fixing sleeve; 18. Cavity; 19. Spring; 20. 21. Positioning hole; 22. Fixing rod; 23. Hinge rod; 24. Connecting arm; 25. Shaft seat; 26. Handle rod two; 27. Limit seat; 28. Sliding sleeve; 29. ​​Pressure rod two; 30. Connecting rod; 31. Hinge seat; 32. Handle rod three; 33. Pin one; 34. Support seat; 35. Pin two; 36. Tension spring; 37. Workpiece bend; 38. Workpiece base plate; 39. Workpiece hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] This application provides a small connector spatial distance detection device, mainly solving the problem of *, and provides the following technical solution, which will be combined with the following Figures 1-7 Please provide a detailed explanation:

[0028] Example 1, please refer to Figures 1-5 A small connector spatial distance detection device includes a detection platform 1, a slide 2 fixed on the top left side of the detection platform 1, a slide 3 mounted on the slide 2 that slides left and right along the slide 2, a workpiece fixing platform 4 fixed on the top of the detection platform 1 on the right side of the slide 2, a digital display mounting base 5 fixed on the top left side of the slide 3, a per mille display 6 mounted on the digital display mounting base 5, a positioning base 7 fixed on the top right side of the slide 3 that is aligned with the digital display mounting base 5, a hole in the positioning base 7 through which a positioning rod 8 slides, the left end of the positioning rod 8 abutting against the detection end of the per mille display 6, and a limit seat 27 fixed on the top of the detection platform 1 between the right side of the slide 2 and the workpiece fixing platform 4.

[0029] The workpiece fixing table 4 has multiple positioning holes 20. The workpiece fixing table 4 at the bottom of the positioning hole 20 is internally threaded with a fixing sleeve 17. The positioning hole 20 above the fixing sleeve 17 is provided with a positioning pin 16. The top of the positioning pin 16 abuts against the workpiece hole 39. The bottom of the positioning pin 16 is provided with a cavity 18. The cavity 18 is provided with a spring 19. The two ends of the spring 19 abut against and support the positioning pin 16 and the fixing sleeve 17 at the corresponding positions. The top of the positioning pin 16 is provided with a conical structure. The top part of the positioning pin 16 extends above the workpiece fixing table 4.

[0030] A workpiece is placed on top of the workpiece fixing table 4. The workpiece includes a workpiece bend 37. A workpiece base plate 38 is fixed to the bottom of the workpiece bend 37. A workpiece hole 39 is pre-set on the workpiece base plate 38 corresponding to the position of the positioning pin 16. The right end of the positioning rod 8 abuts against the end of the workpiece bend 37. A column 9 is fixed to the top of the inspection table 1 at the position corresponding to the rear side of the workpiece fixing table 4. A cross brace 10 extending to the top of the workpiece fixing table 4 is fixed to the top of the column 9. A hole is opened on the cross brace 10 corresponding to the center position of the workpiece fixing table 4. A threaded sleeve 12 is threadedly connected in the hole. A handle 13 is fixed to the top of the threaded sleeve 12. A pressure rod 11 is fixed to the bottom of the threaded sleeve 12. A positioning sleeve 14 is set above the workpiece base plate 38 corresponding to the position of the workpiece hole 39. The top part of the positioning pin 16 passes through the workpiece hole 39 and extends into the positioning sleeve 14. A beam plate 15 is fixed to the top of the positioning sleeve 14. The top of the beam plate 15 abuts against the bottom of the pressure rod 11 at the corresponding position.

[0031] The workpiece consisting of workpiece bend 37, workpiece base plate 38, and workpiece hole 39 is an engine exhaust valve metal connecting pipe. During inspection, the workpiece hole 39 is aligned with the positioning pin 16 and placed on the workpiece fixing table 4, and the positioning pin 16 is passed into the workpiece hole 39. Then, the positioning sleeve 14 is aligned with the positioning pin 16 and placed on the workpiece base plate 38. Then, the lever 13 is rotated, and the threaded connection between the threaded sleeve 12 and the cross brace 10 is used to drive the pressure rod 11 to descend, so that the bottom end of the pressure rod 11 abuts against the beam plate 15. The downward pressure makes the positioning sleeve 14 cooperate with the workpiece fixing table 4 to fix the workpiece.

[0032] During the initial inspection, a standard workpiece is used, and the per mille display 6 is zeroed. After zeroing, the workpiece to be inspected is used. Once the workpiece is fixed, the slide 3 is pushed closer to the workpiece, so that the right end of the positioning rod 8 abuts against the end of the workpiece bend 37. When there is an error in the workpiece, since the length of the positioning rod 8 remains unchanged, the detection end of the per mille display 6 is eventually moved, thereby generating a displacement reading. At this time, the current data can be read from the per mille display 6. By comparing the current data with the standard data, the dimensional difference between the current workpiece and the standard part can be determined, and then the size of the current workpiece can be calculated by addition or subtraction.

[0033] A bearing seat 24 is fixed on the top of the testing table 1, corresponding to the front side of the slide table 3. A rotating shaft 25 is installed inside the bearing seat 24. A handle 26 is fixed to the front end of the rotating shaft 25, and a connecting arm 23 is fixed to the rear end of the rotating shaft 25. A fixing rod 21 is fixed to the right front end of the slide table 3. A hinge rod 22 is hinged between the fixing rod 21 and the connecting arm 23.

[0034] When moving the slide table 3, simply rotate the pivot 25 from the position of the lever 26. The rotation of the pivot 25 utilizes the hinged connection between the hinge rod 22 and the fixed rod 21 and the connecting arm 23 to pull the slide table 3 to move on the slide block 2.

[0035] Example 2, please refer to Figure 6 and Figure 7 The difference between this embodiment and Embodiment 1 is that:

[0036] A sliding sleeve 28 is fixed at the opening position at the top of the cross brace 10 corresponding to the center of the workpiece fixing table 4. A pressure rod 29 that slides up and down along the sliding sleeve 28 is provided in the sliding sleeve 28 and the opening. A hinge seat 31 is fixed at the top of the pressure rod 29. A connecting rod 30 is hinged to the hinge seat 31. A support seat 34 is fixed at the top of the cross brace 10 corresponding to the front side of the sliding sleeve 28. A handle 32 is hinged to the support seat 34 through a pin 35. The front end of the handle 32 is hinged to the top of the connecting rod 30 at the corresponding position through a pin 33.

[0037] When it is necessary to press the positioning sleeve 14, lift the handle 32, use the connecting rod 30 to connect the handle 32 and the pressure rod 29, and push the pressure rod 29 down under the sliding cooperation of the sliding sleeve 28 and the pressure rod 29, so that the bottom end of the pressure rod 29 abuts against the beam plate 15, thereby pressing the positioning sleeve 14 onto the workpiece base plate 38 to fix the workpiece. When the workpiece is removed, loosen the handle 32, then remove the positioning sleeve 14, and then remove the workpiece. Compared with the structure of the pressure rod 11 and the threaded sleeve 12, the pressure rod 29 and the handle 32 in this embodiment are more convenient to use.

[0038] A tension spring 36 is installed between the side of the support base 34 and the handle 32 near the pin 33.

[0039] When the lever 32 is released, the tension spring 36 can still pull the lever 32 at the pin 33 position to descend, thereby driving the pressure rod 29 to descend. Even if the lever 32 is released, the positioning sleeve 14 will not fall down due to the release of pressure. When removing the workpiece, press down the lever 32 to raise the pin 33 position, thereby driving the pressure rod 29 to rise.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A small connector spatial distance detection device, comprising a workpiece consisting of a workpiece bend (37), a workpiece base plate (38), and a workpiece hole (39), wherein the workpiece base plate (38) is fixed to the bottom end of the workpiece bend (37), the workpiece hole (39) is located on the workpiece base plate (38), and the workpiece is placed on a workpiece fixing table (4), characterized in that, The workpiece fixing table (4) has a positioning hole (20) at the position corresponding to the workpiece hole (39). A positioning pin (16) is provided in the positioning hole (20). The top part of the positioning pin (16) extends to the top of the workpiece fixing table (4), and the top of the positioning pin (16) abuts against the workpiece hole (39). A positioning sleeve (14) is provided above the workpiece base plate (38) at the position corresponding to the workpiece hole (39). A beam plate (15) is fixed to the top of the positioning sleeve (14). The top of the positioning pin (16) passes through the workpiece hole (39) and extends into the positioning sleeve (14).

2. The small connector spatial distance detection device according to claim 1, characterized in that, The workpiece fixing table (4) at the bottom of the positioning hole (20) is internally threaded with a fixing sleeve (17). The positioning pin (16) is located in the positioning hole (20) above the fixing sleeve (17). The bottom end of the positioning pin (16) has a pre-set cavity (18). A spring (19) is provided in the cavity (18). The two ends of the spring (19) abut against and support the positioning pin (16) and the fixing sleeve (17) at the corresponding positions.

3. The small connector spatial distance detection device according to claim 2, characterized in that, The workpiece fixing platform (4) is fixed to the top of the testing platform (1). A slide (2) is fixed to the left side of the top of the testing platform (1). A slide (3) that slides left and right along the slide (2) is installed on the slide (2). The workpiece fixing platform (4) is fixed to the top of the testing platform (1) to the right of the slide (2). A digital display mounting base (5) is fixed to the left side of the top of the slide (3). A per mille display (6) is installed on the digital display mounting base (5). A positioning base (7) aligned with the digital display mounting base (5) is fixed to the right side of the top of the slide (3). A hole is opened on the positioning base (7), and a positioning rod (8) that slides along the hole passes through the hole. The left end of the positioning rod (8) abuts against the testing end of the per mille display (6), and the right end of the positioning rod (8) abuts against the workpiece bend (37).

4. The small connector spatial distance detection device according to claim 3, characterized in that, The top of the detection table (1) between the right side of the slide (2) and the workpiece fixing table (4) is fixed with a limiting seat (27), and the top of the positioning pin (16) above the workpiece fixing table (4) is set in a conical structure.

5. A small connector spatial distance detection device according to claim 3, characterized in that, The top of the testing table (1) is fixed with a bearing seat (24) corresponding to the front side of the slide table (3). A rotating shaft (25) is installed inside the bearing seat (24). A handle (26) is fixed at the front end of the rotating shaft (25). A connecting arm (23) is fixed at the rear end of the rotating shaft (25). A fixing rod (21) is fixed at the right end of the front side of the slide table (3). A hinge rod (22) is hinged between the fixing rod (21) and the connecting arm (23).

6. A small connector spatial distance detection device according to claim 4, characterized in that, The top of the testing platform (1) is fixed with a column (9) at the rear of the workpiece fixing platform (4). The top of the column (9) is fixed with a horizontal support plate (10) extending directly above the workpiece fixing platform (4). The horizontal support plate (10) has a hole at the center of the workpiece fixing platform (4). A threaded sleeve (12) is threaded into the hole. A handle (13) is fixed at the top of the threaded sleeve (12). A pressure rod (11) is fixed at the bottom of the threaded sleeve (12). The top of the beam plate (15) abuts against the bottom of the pressure rod (11) at the corresponding position.

7. A small connector spatial distance detection device according to claim 6, characterized in that, A sliding sleeve (28) is fixed at the opening position corresponding to the center of the workpiece fixing table (4) on the top of the cross brace (10). A pressure rod (29) that slides up and down along the sliding sleeve (28) is provided in the sliding sleeve (28) and the opening. A hinge seat (31) is fixed at the top of the pressure rod (29). A connecting rod (30) is hinged to the hinge seat (31). A support seat (34) is fixed at the top of the cross brace (10) corresponding to the front side of the sliding sleeve (28). A handle (32) is hinged to the support seat (34) through a pin (35). The front end of the handle (32) is hinged to the top end of the connecting rod (30) at the corresponding position through a pin (33).

8. A small connector spatial distance detection device according to claim 7, characterized in that, A tension spring (36) is installed between the side of the support base (34) and the handle three (32) near the pin one (33).

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