Anti-inclination shaft part diameter measuring frame

Abstract

This application relates to the field of shaft part measurement technology and discloses an anti-tilting shaft part diameter measuring frame, including clamping plates and a differential cylinder. A locking element is provided on the upper surface of the differential cylinder, and a fixed shaft is provided on one side of the differential cylinder. A support frame is fixedly connected to the lower surface of the clamping plates, and a sliding cylinder is slidably fitted onto the upper surface of the support frame. A telescopic component is fixedly connected to the upper surface of the sliding cylinder, and a support block is fixedly connected to the upper surface of the telescopic component. At this time, the two arc-shaped clamping plates hold the shaft part. The movement of the sliding cylinder drives the support block to move via the telescopic component, and the movement of the support block drives the shaft part to move until the shaft part moves to the position corresponding to the fixed shaft. Then, the sliding cylinder is stopped from moving. Next, the differential cylinder is rotated to push the fixed shaft to fit against the outer surface of the shaft part to measure the outer diameter. This design solves, to some extent, the problem of tilting during the measurement of various shaft parts of different specifications.

Description

Technical Field

[0001] This application belongs to the field of shaft part measurement technology, specifically a shaft part diameter measuring frame that prevents tilting. Background Technology

[0002] Dial indicators or micrometers are typically used to measure shaft parts. The dial indicator or micrometer is fixed on the measuring frame and measures the change in diameter by contacting the surface of the shaft part with the probe. It is often used in batch inspection to measure the diameter deviation of shaft parts. The micrometer moves the micrometer screw by rotating the micrometer drum, so that the anvil and the end face of the screw clamp the workpiece. The external dimension is accurately measured by the scale cooperation between the main scale and the micrometer drum.

[0003] However, the following problems still exist: traditional measuring tools have simple limiting structures for shaft parts, mostly using a single support or clamping method, which cannot fix them from multiple directions such as top, bottom, and sides. During the measurement process, the parts are prone to tilting or shifting, which directly leads to inaccurate diameter measurement data. Utility Model Content

[0004] The purpose of this application is to provide a shaft part diameter measuring frame that prevents tilting, so as to solve the problem that the traditional measuring tools mentioned above have simple limiting structures for shaft parts, mostly single support or clamping methods, which cannot be fixed from multiple directions such as top, bottom and sides, and the parts are prone to tilting or displacement during the measurement process, directly leading to inaccurate diameter measurement data.

[0005] The technical solution adopted in this application is as follows:

[0006] A tilt-resistant diameter measuring frame for shaft parts includes a clamping plate and a differential cylinder. A locking element is provided on the upper surface of the differential cylinder, and a fixed shaft is provided on one side of the differential cylinder. A frame body is fixedly connected to the lower surface of the clamping plate. A sliding cylinder is slidably fitted onto the upper surface of the frame body. A telescopic component is fixedly connected to the upper surface of the sliding cylinder. A support block is fixedly connected to the upper surface of the telescopic component. A mechanism groove is formed on the upper surface of the support block. An arc-shaped clamping plate is rotatably connected to the inner wall of the mechanism groove. A horizontal plate is fixedly connected to the front of the arc-shaped clamping plate. A pressure cylinder is rotatably connected to one side of the horizontal plate. Support frames are fixedly connected to both sides of the support block. A threaded cylinder is fixedly inserted through the upper surface of the support frame. A threaded rod is threadedly connected to the inner wall of the threaded cylinder. A driving cylinder is fixedly connected to the top end of the threaded rod. A concave plate is rotatably connected to the lower surface of the threaded rod, and a top cylinder is rotatably connected to the inner wall of the concave plate.

[0007] Preferably, there are two arc-shaped clamps, and the two arc-shaped clamps are symmetrically arranged on both sides of the upper surface of the support block with the vertical center line of the front of the support block as the axis of symmetry. By setting two arc-shaped clamps, the shaft parts can be clamped on both sides respectively, reducing the occurrence of shaft parts shifting during measurement.

[0008] Preferably, a spring is fixedly connected to the opposite surfaces of the two arc-shaped clamping plates. The end of the spring away from the arc-shaped clamping plate is fixedly connected to the inner wall of the mechanism groove. By setting the spring, when the shaft part moves down and squeezes the pressure cylinders on both sides, the two pressure cylinders push the two arc-shaped clamping plates to rotate away from the shaft part. At this time, the bottom side of the arc-shaped clamping plate rotates in the opposite direction to squeeze the spring. The spring is compressed and then pushes the bottom side of the arc-shaped clamping plate. The top side of the arc-shaped clamping plate then presses the shaft part tightly, thereby strengthening the limit on the shaft part and preventing the shaft part from shifting or tilting during measurement. At the same time, it is suitable for shaft parts of different sizes.

[0009] Preferably, a connecting plate is fixedly connected to the inner wall of the support frame, and a sliding rod is fixedly connected to the bottom wall of the inner wall of the support frame. The top end of the sliding rod is fixedly connected to the top wall of the inner wall of the support frame. The connecting plate is slidably sleeved on the surface of the sliding rod. When the threaded rod rotates and moves downward through the threaded cylinder, the threaded rod is rotatably connected to the upper surface of the concave plate through an external bearing. This is an existing structure and will not be described in detail here. The threaded rod pushes the concave plate downward. At this time, the connecting plate keeps the concave plate in a vertical direction along the sliding rod to allow the concave plate to move downward stably. The downward movement of the concave plate then drives the top cylinder to move downward and press against the shaft-like parts, while avoiding the concave plate from rotating together when the threaded rod rotates.

[0010] Preferably, the support frame has a sliding groove on its side, and a slider is slidably connected to the inner wall of the sliding groove. The side of the slider away from the sliding groove is fixedly connected to a sliding cylinder. The sliding cylinder is slidably connected to the side of the support frame through the slider and the sliding groove. When the sliding cylinder is pushed, the slider slides on the inner wall of the sliding groove, allowing the sliding cylinder to slide on the support frame.

[0011] Preferably, the telescopic component includes a telescopic cylinder, the lower surface of which is fixedly connected to the upper surface of the sliding cylinder, and a telescopic plate slidably connected to the inner wall of the telescopic cylinder. The upper surface of the telescopic plate is fixedly connected to the lower surface of the support block. A limit rod is threadedly connected to the side of the telescopic cylinder. First, the limit rod is rotated to release the limit on the telescopic plate, and then the support block is pushed upward. The upward movement of the support block then drives the shaft-like parts clamped by the pressure cylinder to move upward until the horizontal position of the shaft-like parts is consistent with that of the fixed shaft. Then, the support block is stopped from being pushed, and then the limit rod is rotated in the opposite direction to limit the telescopic plate. This avoids the problem of inaccurate measurement caused by the inability to keep the pressure cylinder at the same horizontal plane as the fixed shaft when the diameter of the pressure cylinder is too long or too low.

[0012] Preferably, an installation component is fixedly connected to the lower surface of the clamping plate. The installation component includes a limiting plate, the inner wall of which is adapted to the upper surface of the support frame. A rectangular tube is fixedly connected to the back of the limiting plate, and an insert plate is sleeved on the inner wall of the rectangular tube. The support frame is slid into the limiting plate, and then the insert plate is inserted through the support frame and into the rectangular tube to limit the support frame, thereby removing the support frame from the clamping plate for convenient and flexible use by the operator.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0014] 1. In this application, the support frame is first slid below the clamping plate, then the shaft part is placed above the two pressure cylinders. The drive cylinder is then rotated, which in turn rotates the threaded rod. The rotation of the threaded rod pushes the concave plate to move, which in turn moves the top cylinder. The top cylinder presses against the shaft part. At this time, the two arc-shaped clamping plates rotate towards their respective opposing faces until the shaft part is against the upper surface of the support block. The two arc-shaped clamping plates then hold the shaft part, and the top cylinder presses against it. The sliding cylinder is then pushed, and its movement drives the support block to move via the telescopic component. The support block's movement drives the shaft part to move until the shaft part reaches the position corresponding to the fixed shaft. The sliding cylinder is then stopped. Finally, the differential cylinder is rotated to push the fixed shaft against the outer surface of the shaft part to measure its outer diameter. This method, to some extent, solves the problem of tilting during the measurement of various shaft parts of different specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main view structure of this application;

[0016] Figure 2 This is a side view of the structure of this application;

[0017] Figure 3 This is a side view of the concave plate in the pulled-out state in this application.

[0018] Figure 4 This is a side view of the slider structure of this application.

[0019] The diagram shows the following components: 1. Frame; 2. Clamping plate; 3. Differential cylinder; 4. Locking element; 5. Support block; 6. Support frame; 7. Threaded cylinder; 8. Threaded rod; 9. Drive cylinder; 10. Concave plate; 11. Top cylinder; 12. Slide rod; 13. Connecting plate; 14. Arc-shaped clamping plate; 15. Horizontal plate; 16. Pressure cylinder; 17. Mounting component; 171. Limiting plate; 172. Rectangular cylinder; 173. Insert plate; 18. Telescopic component; 181. Telescopic cylinder; 182. Limiting rod; 183. Telescopic plate; 19. Slide groove; 20. Slider; 21. Sliding cylinder; 22. Mechanism groove; 23. Spring; Fixed shaft. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Example:

[0022] Reference Figure 2-4A diameter measuring frame for anti-tilting shaft parts includes a clamping plate 2 and a differential cylinder 3. A locking element 4 is provided on the upper surface of the differential cylinder 3, and a fixed shaft 24 is provided on one side of the differential cylinder 3. The frame is characterized by: a frame body 1 fixedly connected to the lower surface of the clamping plate 2; a sliding cylinder 21 slidably fitted onto the upper surface of the frame body 1; a telescopic component 18 fixedly connected to the upper surface of the sliding cylinder 21; a support block 5 fixedly connected to the upper surface of the telescopic component 18; a mechanism groove 22 formed on the upper surface of the support block 5; an arc-shaped clamping plate 14 rotatably connected to the inner wall of the mechanism groove 22; a horizontal plate 15 fixedly connected to the front of the arc-shaped clamping plate 14; a pressure cylinder 16 rotatably connected to one side of the horizontal plate 15; and support frames 6 fixedly connected to both sides of the support block 5. A threaded cylinder 7 is fixedly inserted into the upper surface of the support frame 6. A threaded rod 8 is threadedly connected to the inner wall of the threaded cylinder 7. A drive cylinder 9 is fixedly connected to the top of the threaded rod 8. A concave plate 10 is rotatably connected to the lower surface of the threaded rod 8. A top cylinder 11 is rotatably connected to the inner wall of the concave plate 10. The frame 1 is slid below the clamping plate 2. Then, the shaft parts are placed above the two pressure cylinders 16. The drive cylinder 9 is then rotated, which in turn rotates the threaded rod 8. The rotation of the threaded rod 8 pushes the concave plate 10 to move. The movement of the concave plate 10 then moves the top cylinder 11. The movement of the top cylinder 11 presses the shaft parts. At this time, the two arc-shaped clamping plates 14 rotate toward their respective opposing faces until the shaft parts are in contact with the upper surface of the support block 5. At this point, the two arc-shaped clamping plates 14 hold the shaft-like part, and the top cylinder 11 presses against the shaft-like part. Then, the sliding cylinder 21 is pushed, and the movement of the sliding cylinder 21 drives the support block 5 to move through the telescopic component 18. The movement of the support block 5 drives the shaft-like part to move until the shaft-like part moves to the position corresponding to the fixed shaft 24. Then, the sliding cylinder 21 is stopped. Next, the differential cylinder 3 is rotated to push the fixed shaft 24 to fit against the outer ring surface of the shaft-like part to measure the outer diameter. There are two arc-shaped clamping plates 14, and the two arc-shaped clamping plates 14 are symmetrically arranged on both sides of the upper surface of the support block 5 with the vertical center line of the front of the support block 5 as the axis of symmetry. By setting two arc-shaped clamping plates 14, the shaft-like part can be clamped on both sides respectively, reducing the shaft-like part's movement during measurement. To prevent deviation during measurement, springs 23 are fixedly connected to the opposite surfaces of the two arc-shaped clamping plates 14. The end of the spring 23 away from the arc-shaped clamping plate 14 is fixedly connected to the inner wall of the mechanism groove 22. By setting the spring 23, when the shaft part moves down and squeezes the pressure cylinders 16 on both sides, the two pressure cylinders 16 respectively push the two arc-shaped clamping plates 14 to rotate away from the shaft part. At this time, the bottom side of the arc-shaped clamping plate 14 rotates in the opposite direction and squeezes the spring 23. At this time, the spring 23 is compressed, and then pushes the bottom side of the arc-shaped clamping plate 14. The top side of the arc-shaped clamping plate 14 then presses the shaft part, thereby strengthening the limit on the shaft part and preventing the shaft part from deviating or tilting during measurement. At the same time, it is suitable for shaft parts of different sizes.

[0023] Reference Figure 1-3A connecting plate 13 is fixedly connected to the inner wall of the support frame 6, and a sliding rod 12 is fixedly connected to the bottom wall of the inner wall of the support frame 6. The top end of the sliding rod 12 is fixedly connected to the top wall of the inner wall of the support frame 6. The connecting plate 13 is slidably sleeved on the surface of the sliding rod 12. When the threaded rod 8 rotates and moves downward through the threaded cylinder 7, the threaded rod 8 is rotatably connected to the upper surface of the concave plate 10 through an external bearing. This is the existing structure and will not be described in detail here. The threaded rod 8 pushes the concave plate 10 downward. At this time, the connecting plate 13 keeps the concave plate 10 in a vertical direction along the sliding rod 12 to allow the concave plate 10 to move downward stably. The concave plate 10 moves down and then drives the top cylinder 11 to move down and press against the shaft part. At the same time, it prevents the concave plate 10 from rotating together when the threaded rod 8 rotates. A sliding groove 19 is provided on the side of the frame 1. A slider 20 is slidably connected to the inner wall of the sliding groove 19. The side of the slider 20 away from the sliding groove 19 is fixedly connected to the sliding cylinder 21. The sliding cylinder 21 is slidably connected to the side of the frame 1 through the slider 20 and the sliding groove 19. When the sliding cylinder 21 is pushed, the slider 20 slides on the inner wall of the sliding groove 19, allowing the sliding cylinder 21 to slide on the frame 1.

[0024] Reference Figure 1-4 The telescopic component 18 includes a telescopic cylinder 181, the lower surface of which is fixedly connected to the upper surface of the sliding cylinder 21. A telescopic plate 183 is slidably connected to the inner wall of the telescopic cylinder 181, and the upper surface of the telescopic plate 183 is fixedly connected to the lower surface of the support block 5. A limit rod 182 is threadedly connected to the side of the telescopic cylinder 181. First, the limit rod 182 is rotated to release the limit on the telescopic plate 183, and then the support block 5 is pushed upward. The upward movement of the support block 5 then drives the shaft-like parts clamped by the pressure cylinder 16 to move upward until the shaft-like parts are aligned with the fixed shaft. When the horizontal position of 24 is consistent, stop pushing the support block 5, and then rotate the limit rod 182 in the opposite direction to limit the telescopic plate 183. This avoids the problem of inaccurate measurement caused by the inability to keep the pressure cylinder 16 on the same horizontal plane as the fixed shaft 24 when the diameter is too long or too low. A pressure block is provided at one end of the limit rod 182 near the telescopic cylinder 181. When the limit rod 182 rotates and moves towards the telescopic plate 183, it drives the pressure block to press the telescopic plate 183 tightly, thereby limiting the telescopic plate 183 at any time. This is the prior art and will not be described in detail here.

[0025] Reference Figure 2-3 The lower surface of the clamping plate 2 is fixedly connected to the mounting component 17, which includes a limiting plate 171. The inner wall of the limiting plate 171 is adapted to the upper surface of the frame 1. A rectangular tube 172 is fixedly connected to the back of the limiting plate 171. An insert plate 173 is sleeved on the inner wall of the rectangular tube 172. The frame 1 is slid into the limiting plate 171, and then the insert plate 173 is inserted through the frame 1 and into the rectangular tube 172 to limit the frame 1, thereby removing the frame 1 from the clamping plate 2 for convenient and flexible use by the operator.

[0026] The implementation principle of the anti-tilting shaft diameter measuring frame of this application is as follows: First, the frame 1 is slid below the clamping plate 2. Then, the shaft part is placed above the two pressure cylinders 16. Then, the cylinder 9 is rotated, which in turn drives the threaded rod 8 to rotate. The rotation of the threaded rod 8 pushes the concave plate 10 to move. The movement of the concave plate 10 then drives the top cylinder 11 to move. The top cylinder 11 moves and presses the shaft part. At this time, the two arc-shaped clamping plates 14 rotate toward their respective opposing surfaces until the shaft part is in contact with the upper surface of the support block 5. At this time, the two arc-shaped clamping plates 14 hold the shaft part, and the top cylinder 11 presses on the shaft part. Then, the sliding cylinder 21 is pushed. The movement of the sliding cylinder 21 drives the support block 5 to move through the telescopic component 18. The movement of the support block 5 drives the shaft part to move until the shaft part moves to the position corresponding to the fixed shaft 24. Then, the sliding cylinder 21 is stopped. Then, the differential cylinder 3 is rotated to push the fixed shaft 24 to contact the outer ring surface of the shaft part to measure the outer diameter. This solves the problem of tilting of various shaft parts of different specifications during measurement to a certain extent.

[0027] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An anti-tilting shaft part diameter measuring frame, comprising a clamping plate (2) and a differential cylinder (3), the upper surface of the differential cylinder (3) is provided with a locking piece (4), and one side of the differential cylinder (3) is provided with a fixing shaft (24), characterized in that: The lower surface of the clamping plate (2) is fixedly connected to the frame (1), and the upper surface of the frame (1) is slidably fitted with a sliding cylinder (21). The upper surface of the sliding cylinder (21) is fixedly connected to a telescopic component (18), and the upper surface of the telescopic component (18) is fixedly connected to a support block (5). The upper surface of the support block (5) is provided with a mechanism groove (22), and the inner wall of the mechanism groove (22) is rotatably connected to an arc-shaped clamping plate (14). The front side of the arc-shaped clamping plate (14) is fixedly connected to a horizontal plate (…). 15), a pressure cylinder (16) is rotatably connected to one side of the horizontal plate (15), and a support frame (6) is fixedly connected to both sides of the support block (5). A threaded cylinder (7) is fixedly inserted through the upper surface of the support frame (6). A threaded rod (8) is threadedly connected to the inner wall of the threaded cylinder (7). A drive cylinder (9) is fixedly connected to the top of the threaded rod (8). A concave plate (10) is rotatably connected to the lower surface of the threaded rod (8). A top cylinder (11) is rotatably connected to the inner wall of the concave plate (10).

2. The anti-tilt shaft part diameter measuring stand according to claim 1, characterized in that: The number of the arc-shaped clamps (14) is two, and the two arc-shaped clamps (14) are symmetrically arranged on both sides of the upper surface of the support block (5) with the vertical center line of the front of the support block (5) as the axis of symmetry.

3. The anti-tilt shaft part diameter measuring stand according to claim 2, characterized in that: A spring (23) is fixedly connected to the opposite face of the two arc-shaped clamps (14), and the end of the spring (23) away from the arc-shaped clamps (14) is fixedly connected to the inner wall of the mechanism groove (22).

4. The anti-tilting shaft part diameter measuring frame as described in claim 1, characterized in that: The inner wall of the support frame (6) is fixedly connected to a connecting plate (13), and the bottom wall of the inner wall of the support frame (6) is fixedly connected to a sliding rod (12). The top end of the sliding rod (12) is fixedly connected to the top wall of the inner wall of the support frame (6), and the connecting plate (13) is slidably sleeved on the surface of the sliding rod (12).

5. The anti-tilting shaft part diameter measuring frame as described in claim 1, characterized in that: The side of the frame (1) is provided with a sliding groove (19), and a slider (20) is slidably connected to the inner wall of the sliding groove (19). The side of the slider (20) away from the sliding groove (19) is fixedly connected to the sliding cylinder (21). The sliding cylinder (21) is slidably connected to the side of the frame (1) through the slider (20) and the sliding groove (19).

6. The anti-tilt shaft part diameter measuring stand according to claim 1, characterized in that: The telescopic component (18) includes a telescopic cylinder (181), the lower surface of which is fixedly connected to the upper surface of the sliding cylinder (21), a telescopic plate (183) is slidably connected to the inner wall of the telescopic cylinder (181), the upper surface of which is fixedly connected to the lower surface of the support block (5), and a limit rod (182) is threadedly connected to the side of the telescopic cylinder (181).

7. The anti-tilt shaft member diameter measuring stand of claim 1 wherein: The lower surface of the clamp (2) is fixedly connected to an installation component (17), the installation component (17) includes a limiting plate (171), the inner wall of the limiting plate (171) is adapted to the upper surface of the frame (1), the back of the limiting plate (171) is fixedly connected to a rectangular tube (172), and the inner wall of the rectangular tube (172) is fitted with an insert plate (173).

Images