A compression height gauge for automobile pistons

Abstract

This utility model provides a compression height gauge for automotive pistons, belonging to the technical field of automotive piston gauges. It includes a base, with a vertical plate fixedly connected to the rear end of the upper surface of the base. A first sliding sleeve is slidably connected to the vertical plate. A first locking bolt for locking the first sliding sleeve is threaded to the left end of the first sliding sleeve. A fixing plate is fixedly connected to the right end of the first sliding sleeve by bolts. A horizontal plate is provided on the outer side of the fixing plate. A threaded sleeve is fixedly connected to the left side wall of the fixing plate, and a second locking bolt for locking the horizontal plate is threaded to the threaded sleeve. This utility model, through the design of the second sliding sleeve, the fourth locking bolt, and the adjustable bearing mechanism, enables the insertion and bearing of automotive pistons of different specifications, thus facilitating the compression height detection of automotive pistons of different specifications. It has greater versatility and solves the problem of inconvenience in detecting automotive pistons of different specifications in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of automotive piston inspection tools, and more specifically, to an inspection tool for the compression height of automotive pistons. Background Technology

[0002] The piston is one of the key components of an engine. It reciprocates linearly within the cylinder, forming the combustion chamber along with the cylinder head and cylinder walls. It completes the four strokes of the engine: intake, compression, power, and exhaust, and is the core component for energy conversion. The piston's compression height, the vertical distance from the piston crown to the center line of the piston pin, is a crucial parameter. During automotive piston production, a compression height gauge is used to inspect the piston's compression height.

[0003] Currently, existing automotive piston compression height gauges have the following problems:

[0004] (1) The existing compression height gauge has poor versatility. The gauge uses a positioning shaft to test the load on the automobile piston. However, the diameter of the positioning shaft is constant, and it can only test the compression height of pistons of the same specification, which has poor applicability.

[0005] (2) The existing automotive piston compression height gauge is not convenient for flexibly adjusting the detection position of the dial indicator, which makes it inconvenient to detect pistons of different specifications and has poor flexibility.

[0006] Therefore, we have made improvements to this by proposing a gauge for the compression height of automotive pistons. Utility Model Content

[0007] The purpose of this invention is to address the current problem of the inconvenience in performing high compression tests on automotive pistons of different specifications.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] A compression height gauge for automotive pistons is used to improve the above-mentioned problems.

[0010] The present invention is as follows:

[0011] The device includes a base, a vertical plate fixedly connected to the rear end of the upper surface of the base, a first sliding sleeve slidably connected to the vertical plate, a first locking bolt for locking the first sliding sleeve threaded to the left end of the first sliding sleeve, a fixing plate fixedly connected to the right end of the first sliding sleeve by bolts, a horizontal plate provided on the outer side of the fixing plate, a threaded sleeve fixedly connected to the left side wall of the fixing plate, a second locking bolt for locking the horizontal plate threaded to the threaded sleeve, a fixing block fixedly connected to the front end of the horizontal plate, a dial indicator inserted into the fixing block, a third locking bolt for fixing the dial indicator threaded to the left end of the fixing block, a second sliding sleeve slidably connected to the lower side of the vertical plate, a fourth locking bolt for locking the second sliding sleeve threaded to the left end of the second sliding sleeve, and an adjustable bearing mechanism provided on the second sliding sleeve.

[0012] As a preferred technical solution of this utility model, the adjustable bearing mechanism includes a mounting column inserted into a second sliding sleeve. A nut is threaded to the rear end of the mounting column. A connecting frame is fixedly connected to the front end of the mounting column. A fixing plate is fixedly connected to the front end of the connecting frame. Four straight openings are evenly provided on the fixing plate. A bearing is fixedly connected to the center of the connecting frame. A connecting column is fixedly connected to the inner side wall of the inner ring of the bearing. A turntable is fixedly connected to the front end of the connecting column. Four arc-shaped openings are evenly provided on the turntable. A sliding column is slidably connected to each set of straight openings and arc-shaped openings. An arc-shaped plate is fixedly connected to the front end of each sliding column. A worm gear is fixedly connected to the connecting column. A worm is provided on the upper side of the worm gear and meshes with it. A transmission rod is fixedly connected to both ends of the worm. The outer ends of the transmission rods are rotatably connected to the side wall of the connecting frame. A knob is fixedly connected to the outer end of one of the transmission rods.

[0013] As a preferred technical solution of this utility model, a bearing column that is on the same horizontal line as the threaded sleeve is fixedly connected to the outer wall of the fixing plate, and a movable opening that cooperates with the bearing column is provided on the horizontal plate.

[0014] As a preferred technical solution of this utility model, the rear side wall of the vertical plate is provided with a first scale, and the outer side wall of the horizontal plate is provided with a second scale.

[0015] As a preferred technical solution of this utility model, an anti-slip pad is fixedly connected to the lower end face of the base, and the bottom surface of the anti-slip pad is provided with anti-slip texture.

[0016] As a preferred technical solution of this utility model, a vertical opening matching the mounting column is provided at the center of the vertical plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the solution of this utility model:

[0019] 1. By setting a second sliding sleeve, a fourth locking bolt, and an adjustable bearing mechanism, it is possible to insert and bear different specifications of automotive pistons, thereby facilitating the compression high detection of different specifications of automotive pistons, making it more versatile, and solving the problem of inconvenience in detecting different specifications of automotive pistons in the existing technology;

[0020] 2. By using a vertical plate, a first sliding sleeve, a first locking bolt, a fixing plate, a horizontal plate, a threaded sleeve, a second locking bolt, a fixing block, and a dial indicator, the height and position of the dial indicator can be flexibly adjusted, thus facilitating the compression high detection of automotive pistons of different specifications. This enhances flexibility and applicability, solving the problem of inconvenience in detecting the compression high of automotive pistons of different specifications in existing technologies. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of this utility model;

[0022] Figure 2 A schematic diagram of the rear structure provided by this utility model;

[0023] Figure 3 A schematic diagram of the structure of the horizontal plate and its connecting components provided by this utility model;

[0024] Figure 4 A schematic diagram of the adjustable bearing mechanism provided by this utility model;

[0025] Figure 5 A schematic diagram of the adjustable load-bearing structure connected to the second sliding sleeve provided by this utility model;

[0026] Figure 6 A schematic diagram of the bottom structure provided by this utility model.

[0027] The image shows:

[0028] 1. Base; 2. Vertical plate; 3. First sliding sleeve; 4. First locking bolt; 5. Fixing plate; 6. Horizontal plate; 7. Threaded sleeve; 8. Second locking bolt; 9. Fixing block; 10. Dial indicator; 11. Third locking bolt; 12. Second sliding sleeve; 13. Fourth locking bolt; 14. Adjustable bearing mechanism; 1401. Mounting column; 1402. Nut; 1403. Connecting bracket; 1404. Fixing plate; 140 5. Straight opening; 1406. Bearing; 1407. Connecting column; 1408. Turntable; 1409. Arc-shaped opening; 1410. Sliding column; 1411. Arc-shaped plate; 1412. Worm gear; 1413. Worm; 1414. Transmission rod; 1415. Knob; 15. Bearing column; 16. Moving opening; 17. First scale; 18. Second scale; 19. Anti-slip pad; 20. Vertical opening. Detailed Implementation

[0029] 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. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment proposes a compression height gauge for an automobile piston, including a base 1. A vertical plate 2 is fixedly connected to the rear end of the upper surface of the base 1. A first sliding sleeve 3 is slidably connected to the vertical plate 2. A first locking bolt 4 for locking the first sliding sleeve 3 is threaded to the left end of the first sliding sleeve 3. A fixing plate 5 is fixedly connected to the right end of the first sliding sleeve 3 by bolts. A horizontal plate 6 is provided on the outer side of the fixing plate 5. A threaded sleeve 7 is fixedly connected to the left side wall of the fixing plate 5. A second locking bolt 8 for locking the horizontal plate 6 is threaded to the threaded sleeve 7. A fixing block 9 is fixedly connected to the front end of the horizontal plate 6. A dial indicator 10 is inserted into the fixing block 9. A third locking bolt 11 for fixing the dial indicator 10 is threaded to the left end of the fixing block 9. A second sliding sleeve 12 is slidably connected to the lower side of the vertical plate 2. A fourth locking bolt 13 for locking the second sliding sleeve 12 is threaded to the left end of the second sliding sleeve 12. An adjustable bearing mechanism 14 is provided on the second sliding sleeve 12. The first sliding sleeve 3 can... According to the testing requirements, the first sliding sleeve 3 moves up and down along the vertical plate 2. When the first sliding sleeve 3 moves to the appropriate position, the first locking bolt 4 is rotated, and the end of the first locking bolt 4 will tightly abut against the vertical plate 2. The friction force is used to lock the first sliding sleeve 3 on the vertical plate 2 to prevent it from sliding during the testing process. The threaded sleeve 7 cooperates with the second locking bolt 8 to lock the horizontal plate 6. When the horizontal plate 6 moves to the appropriate position, the second locking bolt 8 is rotated, and the second locking bolt 8 will pass through the horizontal plate 6 and be screwed into the threaded sleeve 7, which will firmly fix the horizontal plate 6 on the fixing plate 5. This makes it convenient to flexibly adjust the testing position of the dial indicator 10, and thus facilitate the testing of different specifications of automobile pistons. When testing the compression height of the automobile piston, the probe of the dial indicator 10 will contact the piston surface. When the piston is compressed by pressure, the piston surface will push the probe of the dial indicator 10 to move. The dial indicator 10 will convert the small movement of the probe into a readable value, thereby accurately measuring the compression height of the piston.

[0031] like Figure 1 , Figure 4 and Figure 5As shown, in a preferred embodiment, based on the above method, the adjustable bearing mechanism 14 further includes a mounting post 1401 inserted into the second sliding sleeve 12. A nut 1402 is threaded to the rear end of the mounting post 1401. A connecting bracket 1403 is fixedly connected to the front end of the mounting post 1401. A fixing plate 1404 is fixedly connected to the front end of the connecting bracket 1403. Four straight openings 1405 are evenly distributed on the fixing plate 1404. A shaft is fixedly connected to the center of the connecting bracket 1403. Bearing 1406 has a connecting column 1407 fixedly connected to the inner wall of its inner ring. A turntable 1408 is fixedly connected to the front end of the connecting column 1407. The turntable 1408 has four evenly spaced arc-shaped openings 1409. A sliding column 1410 is slidably connected within each set of straight openings 1405 and arc-shaped openings 1409. An arc-shaped plate 1411 is fixedly connected to the front end of each sliding column 1410. A worm gear 1412 is fixedly connected to the connecting column 1407. The upper side of the worm gear 1412 has a meshing mechanism. The worm gear 1413 is connected to the connecting frame 1403. Both ends of the worm gear 1413 are fixedly connected to transmission rods 1414. The outer ends of the transmission rods 1414 are rotatably connected to the side walls of the connecting frame 1403. One of the transmission rods 1414 has a knob 1415 fixedly connected to its outer end. The second sliding sleeve 12 is easily assembled using a mounting post 1401 and a nut 1402. When the knob 1415 is rotated, it drives the connected transmission rod 1414 to rotate, which in turn drives the worm gear 1413. When the worm gear 1413 rotates, it meshes with the worm wheel 1412, thereby driving the worm wheel 1412 to rotate. The worm wheel 1412 drives the connecting column 1407 to rotate, which in turn causes the turntable 1408 to rotate as well. When the turntable 1408 rotates, the arc-shaped opening 1409 pushes the sliding column 1410 to slide within the straight opening 1405, thereby causing the arc-shaped plate 1411 at the front end of the sliding column 1410 to move inward or outward, facilitating the insertion of automotive pistons of different diameters, thus facilitating the testing of automotive pistons of different specifications.

[0032] like Figure 1 and Figure 3 As shown, in a preferred embodiment, based on the above method, a bearing column 15 is fixedly connected to the outer wall of the fixing plate 5, which is on the same horizontal line as the threaded sleeve 7, and a movable opening 16 that cooperates with the bearing column 15 is provided on the horizontal plate 6; the bearing column 15 can support the horizontal plate 6, and the movable opening 16 facilitates the horizontal movement of the horizontal plate 6.

[0033] like Figure 1 , Figure 2 and Figure 3As shown, in a preferred embodiment, based on the above method, a first scale 17 is provided on the rear side wall of the vertical plate 2, and a second scale 18 is provided on the outer side wall of the horizontal plate 6. The first scale 17 can be used to visually read the height position of the first sliding sleeve 3 and the second sliding sleeve 12 on the vertical plate 2, which makes it convenient for the operator to quickly and accurately adjust the sliding sleeve to a suitable height and improve the detection efficiency. The second scale 18 can help the operator read the forward and backward movement distance of the horizontal plate 6 relative to the fixed piece 5, and further precisely adjust the position of the dial indicator 10 to meet different detection requirements, thereby facilitating the detection of automobile pistons of different specifications.

[0034] like Figure 1 and Figure 6 As shown, in a preferred embodiment, based on the above method, a further anti-slip pad 19 is fixedly connected to the lower end face of the base 1, and the bottom surface of the anti-slip pad 19 is provided with anti-slip texture; the anti-slip pad 19 can increase the friction between the base 1 and the placement plane, and ensure the stability and accuracy of the detection process.

[0035] like Figure 1 and Figure 6 As shown, in a preferred embodiment, based on the above method, a vertical opening 20 matching the mounting column 1401 is further provided at the center of the vertical plate 2; the vertical opening 20 provides space for the vertical movement of the mounting column 1401, so that the second sliding sleeve 12 drives the adjustable bearing mechanism 14 to slide on the vertical plate 2 without being obstructed by the vertical plate 2.

[0036] Specifically, when using this automotive piston compression height gauge: First, adjust the bearing size according to the size of the automotive piston to be tested. Rotate the knob 1415 to drive the connected transmission rod 1414 to rotate. The transmission rod 1414 drives the worm gear 1413 to rotate. The worm gear 1413 meshes with the worm wheel 1412, thereby driving the worm wheel 1412 to rotate. The worm wheel 1412 drives the connecting column 1407 to rotate, which in turn causes the turntable 1408 to rotate as well. When the turntable 1408 rotates, the arc-shaped opening 1409 pushes the sliding column 1410 to slide within the straight opening 1405, thereby causing the arc plate 1411 at the front end of the sliding column 1410 to move inward or outward to adjust to a suitable insertion diameter. Loosen the first locking bolt 4, and the first sliding sleeve 3 can be moved up and down along the vertical plate 2 as needed for testing. When the first sliding sleeve 3 moves... Once in the appropriate position, the first locking bolt 4 is rotated, and its end presses tightly against the vertical plate 2. Friction is used to lock the first sliding sleeve 3 onto the vertical plate 2. Then, the second locking bolt 8 is loosened, allowing the horizontal plate 6 to move back and forth. After moving to the appropriate position, the second locking bolt 8 is rotated again to firmly fix the horizontal plate 6 onto the fixing piece 5, thus allowing for flexible adjustment of the dial indicator 10's position. The car piston to be tested is then inserted into the arc plate 1411. When the car piston is inserted to the designated position, the probe of the dial indicator 10 contacts the piston surface. When the piston is compressed under pressure, the piston surface pushes the probe of the dial indicator 10 to move. The dial indicator 10 converts the minute movement of the probe into a readable value, thereby accurately measuring the piston's compression height and achieving the detection of the car piston's compression height.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A compression height gauge for an automotive piston comprising a base (1) characterised in that, A vertical plate (2) is fixedly connected to the rear end of the upper surface of the base (1). A first sliding sleeve (3) is slidably connected to the vertical plate (2). A first locking bolt (4) for locking the first sliding sleeve (3) is threaded to the left end of the first sliding sleeve (3). A fixing plate (5) is fixedly connected to the right end of the first sliding sleeve (3) by bolts. A horizontal plate (6) is provided on the outer side of the fixing plate (5). A threaded sleeve (7) is fixedly connected to the left side wall of the fixing plate (5). A locking bolt for locking the horizontal plate (6) is threaded to the threaded sleeve (7). The second locking bolt (8) is fixedly connected to the front end of the horizontal plate (6) and a fixing block (9) is fixedly connected to the front end of the horizontal plate (6). A dial indicator (10) is inserted into the fixing block (9). A third locking bolt (11) for fixing the dial indicator (10) is threaded to the left end of the fixing block (9). A second sliding sleeve (12) is slidably connected to the lower side of the vertical plate (2). A fourth locking bolt (13) for locking the second sliding sleeve (12) is threaded to the left end of the second sliding sleeve (12). An adjustable bearing mechanism (14) is provided on the second sliding sleeve (12).

2. A compression height gauge for an automotive piston as claimed in claim 1, wherein, The adjustable bearing mechanism (14) includes a mounting post (1401) inserted into the second sliding sleeve (12). The rear end of the mounting post (1401) is threaded with a nut (1402). The front end of the mounting post (1401) is fixedly connected to a connecting frame (1403). The front end of the connecting frame (1403) is fixedly connected to a fixing plate (1404). The fixing plate (1404) has four evenly spaced straight openings (1405). A bearing (1406) is fixedly connected to the center of the connecting frame (1403). A connecting post (1407) is fixedly connected to the inner wall of the inner ring of the bearing (1406). A turntable (1408) is fixedly connected to the front end of the connecting post (1407). (1408) has four arc-shaped openings (1409) evenly distributed. Each set of straight openings (1405) and arc-shaped openings (1409) is slidably connected to a sliding column (1410). The front end of each sliding column (1410) is fixedly connected to an arc-shaped plate (1411). A worm gear (1412) is fixedly connected to the connecting column (1407). The upper side of the worm gear (1412) is provided with a worm (1413) that meshes with it. Both ends of the worm (1413) are fixedly connected to a transmission rod (1414). The outer ends of the transmission rod (1414) are rotatably connected to the side wall of the connecting frame (1403). One of the transmission rods (1414) has a knob (1415) fixedly connected to its outer end.

3. The compression height gauge for an automotive piston according to claim 1, wherein The outer wall of the fixing plate (5) is fixedly connected to a bearing column (15) that is on the same horizontal line as the threaded sleeve (7), and the horizontal plate (6) is provided with a movable opening (16) that cooperates with the bearing column (15).

4. The compression height gauge for an automotive piston according to claim 1, wherein The vertical plate (2) has a first scale (17) on its rear side wall and the horizontal plate (6) has a second scale (18) on its outer side wall.

5. The compression height gauge for an automotive piston of claim 1 wherein, The lower end surface of the base (1) is fixedly connected with a non-slip pad (19), and the bottom surface of the non-slip pad (19) is provided with non-slip lines.

6. The compression height gauge for an automotive piston of claim 1 wherein, A vertical opening (20) matching the mounting column (1401) is formed at the center of the vertical plate (2).

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