Adjustable sleeve roundness measuring tool

Abstract

The utility model discloses a sleeve roundness measurement frock can adjust belongs to frock clamp field, including operation panel, the top fixedly connected with the fixing frame of operation panel, the inside of the top of fixing frame is provided with the roundness gauge of measuring roundness, the utility model discloses can make the circle center of workpiece and the circle center of circle frame close together, then through adjusting assembly can make multiple slide poles respectively along its corresponding slide slot, to circle frame circle center synchronous concentric close together or away, further can make multiple slide poles synchronous to circular workpiece outside close together and hold, realize synchronous adjusting and hold and improve the efficiency in the process of holding, also can be adapted to be used for the clamping measurement operation of different size of circular workpiece, in the measurement process, through the auxiliary assembly, the circular workpiece can be conveniently lifted, so that the circular workpiece is convenient for close together with the circle frame, avoids in the clamping measurement process of circular workpiece, the operator needs to continuously lift the support of circular workpiece, plays the role of labor saving and convenient.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically an adjustable sleeve roundness measuring tool. Background Technology

[0002] Products with cylindrical structures, such as circular sleeves or cylindrical workpieces, require roundness measurement after processing to ensure product quality. Products that do not meet roundness requirements are unusable and must be classified as defective. Roundness can be measured using a dial indicator that contacts and rotates the workpiece. However, this method requires skilled operators and is not universally applicable, presenting significant limitations. Furthermore, the large number of dimensions to be measured necessitates continuous manual measurement, leading to high operational intensity and potential measurement errors. Existing technologies, such as the utility model patent (publication number: CN203572470U), disclose a positioning fixture for measuring the roundness of a cylindrical body. This fixture features a horizontal slide groove, a vertical slide groove, and three sliders with arc-shaped surfaces. The three arc-shaped surfaces of the sliders form a positioning space for the cylindrical body to be measured. The size of this positioning space can be adjusted by sliding the three sliders according to the outer diameter of the cylindrical body, thus improving the applicability of the roundness measuring device.

[0003] However, during clamping, it is necessary to slide the three sliders one by one to bring them closer to the outside of the workpiece to be measured for clamping. It is difficult to adjust the clamping synchronously during the clamping process, resulting in low clamping efficiency and affecting measurement efficiency. This utility model provides an adjustable sleeve roundness measuring fixture to solve the above problems. Utility Model Content

[0004] This utility model provides an adjustable sleeve roundness measuring fixture, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes an operating table, a fixed frame fixedly connected to the top of the operating table, a roundness measuring instrument disposed inside the top of the fixed frame, a circular frame disposed outside the fixed frame, multiple sliding grooves opened inside the circular frame, and sliding rods slidably connected inside each of the multiple sliding grooves. An adjusting component for controlling the adjustment and clamping of the sliding rods is rotatably connected inside the circular frame. An auxiliary component is fixedly connected to the top of the operating table, and a locking bolt for limiting the roundness measuring instrument is threadedly connected inside the fixed frame. During the measurement process, the circular workpiece is first placed on a support ring. Then, a cylinder controls the support ring to lift the circular workpiece, further pushing the circular workpiece horizontally towards the circular frame along the inside of the support ring. A rotating shaft drives a turntable to rotate, causing multiple threaded sliders to engage and slide along the threaded grooves outside the turntable. During sliding, the multiple threaded sliders slide towards or away from the center of the turntable along the threaded grooves, further enabling multiple sliding rods to synchronously move towards the center of the circular frame, thus clamping the circular workpiece.

[0006] As a further optimization, the adjustment component includes a turntable, which is rotatably connected to the inside of a circular frame. A threaded groove is provided on the outer side of the turntable, and multiple threaded sliders are engaged with the outer side of the threaded groove. A rotating shaft is fixedly connected to the inner side of the turntable. When the rotating shaft drives the turntable to rotate, the threaded sliders can be moved closer to the center thread of the turntable by engaging with the outer side of the threaded groove.

[0007] As a further optimization, a control disk is fixedly connected to the distal end of the rotating shaft. The rotating shaft extends through the fixing frame to its outside. The control disk can easily apply force to control the rotating shaft to drive the turntable to rotate and adjust.

[0008] As a further optimization, clamping rings are fixedly connected to the outside of each of the sliding rods. Ball bearings are uniformly rotatably connected inside the clamping rings. The clamping rings can easily fit against the outer wall of the circular workpiece to achieve clamping. The ball bearings allow the circular workpiece to be rotated after being clamped by the clamping rings so that it can be measured by a roundness tester.

[0009] As a further optimization, a measuring head is fixedly connected to the bottom of the roundness meter, and the measuring head extends to the bottom of the fixed frame. The measuring head can measure the clamped circular workpiece, thereby improving the measurement effect.

[0010] As a further optimization, the auxiliary component includes a cylinder, which is fixedly connected to the top of the operating table. A support ring is fixedly connected to the top of the cylinder, and the cylinder can drive the support ring to move up and down, thereby assisting in lifting the workpiece being tested and improving measurement efficiency.

[0011] As a further optimization, the circular frame is externally fixedly connected to two mounting plates, both of which are internally threaded with screws. Each screw is fitted with a limiting spring. The combination of the screws and mounting plates allows the circular frame to be mounted on the inner wall of the fixing frame. The limiting springs exert a reverse force on the screws, ensuring that the screws will not easily loosen or fall off after installation.

[0012] As a further optimization, the roundness tester is a dial indicator.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: When measuring the roundness of a circular workpiece, the center of the workpiece is first brought close to the center of the circular frame. Then, by adjusting the components, multiple sliding rods can move synchronously and concentrically towards or away from the center of the circular frame along their corresponding sliding grooves. This allows multiple sliding rods to move synchronously towards and clamp the circular workpiece, achieving synchronous adjustment and improving the efficiency of the clamping process. It can also be adapted for clamping and measuring circular workpieces of different sizes. During the measurement process, the auxiliary components can be used to easily lift the circular workpiece, making it easier for the workpiece to come close to and fit against the circular frame. This avoids the need for operators to continuously lift and support the circular workpiece during the clamping and measurement process, thus saving effort and providing convenience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the cross-section of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the circular frame of this utility model;

[0017] Figure 4 This is a structural diagram showing the internal disassembly of the circular frame of this utility model.

[0018] In the diagram: 1. Operating table; 2. Fixture; 3. Roundness gauge; 4. Measuring head; 5. Cylinder; 6. Support ring; 7. Circular frame; 8. Slide groove; 9. Slide rod; 10. Clamping ring; 11. Ball bearing; 12. Threaded slider; 13. Turntable; 14. Threaded groove; 15. Rotating shaft; 16. Control panel; 17. Mounting plate; 18. Screw; 19. Limit spring; 20. Locking bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides an adjustable sleeve roundness measuring fixture, such as... Figures 1 to 4 As shown, the measuring fixture includes an operating table 1, a fixed frame 2 fixedly connected to the top of the operating table 1, a roundness meter 3 for measuring roundness is installed inside the top of the fixed frame 2, the roundness meter 3 can be a dial indicator, a circular frame 7 is provided on the outside of the fixed frame 2, and multiple sliding grooves 8 are opened inside the circular frame 7. Sliding rods 9 are slidably connected inside the multiple sliding grooves 8, and an adjustment component for adjusting the clamping of the sliding rods 9 is rotatably connected inside the circular frame 7. An auxiliary component is fixedly connected to the top of the operating table 1, and a locking bolt 20 for limiting the roundness meter 3 is threaded inside the fixed frame 2. The locking bolt 20 can be used to easily adjust the upper and lower limit of the roundness meter 3 to match the measurement of cylinders of different sizes. When measuring the roundness of a circular workpiece, the center of the workpiece is first brought close to the center of the circular frame 7. Then, by adjusting the components, multiple sliding rods 9 move synchronously and concentrically towards or away from the center of the circular frame 7 along their corresponding sliding grooves 8. This allows multiple sliding rods 9 to move synchronously towards and clamp the circular workpiece, achieving synchronous adjustment and improving the efficiency of the clamping process. It can also be adapted for clamping and measuring circular workpieces of different sizes. During the measurement process, the auxiliary components can be used to easily lift the circular workpiece, making it easier for the workpiece to come close to the circular frame 7. This avoids the need for operators to continuously lift and support the circular workpiece during the clamping and measurement process, thus saving effort and making the process more convenient.

[0021] The adjustment assembly includes a turntable 13, which is rotatably connected to the inside of the circular frame 7. A threaded groove 14 is provided on the outer side of the turntable 13, and multiple threaded sliders 12 are engaged with the outer side of the threaded groove 14. A rotating shaft 15 is fixedly connected to the inner side of the turntable 13. When the rotating shaft 15 drives the turntable 13 to rotate, the threaded sliders 12 can be moved closer to the center thread of the turntable 13 by engaging with the outer side of the threaded groove 14. A control disk 16 is fixedly connected to the far end of the rotating shaft 15. The rotating shaft 15 extends through the fixed frame 2 to its outside. The control disk 16 can easily apply force to control the rotating shaft 15 to drive the turntable 13 to rotate for adjustment.

[0022] Multiple sliding rods 9 are fixedly connected to the outside of clamping rings 10. The inside of the clamping rings 10 is uniformly connected to ball bearings 11. The clamping rings 10 can easily fit against the outer wall of the circular workpiece to achieve clamping. The ball bearings 11 can make it easy to rotate the circular workpiece after the clamping rings 10 clamp it so that the circular workpiece can be measured by the roundness meter 3. The bottom of the roundness meter 3 is fixedly connected to the measuring head 4, which extends to the bottom of the fixed frame 2. The measuring head 4 can measure the clamped circular workpiece and improve the measurement effect.

[0023] The auxiliary components include a cylinder 5, which is fixedly connected to the top of the operating table 1. A support ring 6 is fixedly connected to the top of the cylinder 5. The cylinder 5 can drive the support ring 6 to rise and fall, thereby assisting in lifting the workpiece to be tested and improving measurement efficiency. Two mounting plates 17 are fixedly connected to the outside of the circular frame 7. Screws 18 are threaded inside the two mounting plates 17. Limiting springs 19 are sleeved on the outside of the screws 18. The combination of screws 18 and mounting plates 17 allows the circular frame 7 to be installed on the inner wall of the fixing frame 2. The limiting springs 19 exert a reverse force on the screws 18, ensuring that the screws 18 will not easily loosen or fall off after installation.

[0024] When using this adjustable sleeve roundness measuring fixture, the circular workpiece is first placed on the support ring 6. Then, the cylinder 5 controls the support ring 6 to lift the circular workpiece, further pushing the circular workpiece to slide horizontally towards the circular frame 7 along the inside of the support ring 6. By rotating the rotating shaft 15, the turntable 13 is rotated, causing multiple threaded sliders 12 to engage and slide along the threaded grooves 14 on the outside of the turntable 13. During sliding, the multiple threaded sliders 12 will slide closer to or away from the center of the turntable 13 along the threaded grooves 14. This further allows multiple sliding rods 9 to move synchronously towards the center of the circular frame 7, thus achieving the clamping of the circular workpiece.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable sleeve roundness measuring fixture, comprising an operating table (1), characterized in that: The top of the operating table (1) is fixedly connected to a fixed frame (2). A roundness measuring instrument (3) for measuring roundness is installed inside the top of the fixed frame (2). A circular frame (7) is installed outside the fixed frame (2). Multiple sliding grooves (8) are opened inside the circular frame (7). A sliding rod (9) is slidably connected inside each of the multiple sliding grooves (8). An adjustment component for adjusting the clamping of the sliding rod (9) is rotatably connected inside the circular frame (7). An auxiliary component is fixedly connected to the top of the operating table (1).

2. The adjustable sleeve roundness measuring fixture according to claim 1, characterized in that: The adjustment assembly includes a turntable (13), which is rotatably connected to the inside of the circular frame (7). A threaded groove (14) is provided on the outer side of the turntable (13), and multiple threaded sliders (12) are engaged with the outer side of the threaded groove (14). A rotating shaft (15) is fixedly connected to the inner side of the turntable (13).

3. The adjustable sleeve roundness measuring fixture according to claim 2, characterized in that: The control panel (16) is fixedly connected to the far end of the rotating shaft (15), and the rotating shaft (15) extends through the fixing frame (2) to its outside.

4. The adjustable sleeve roundness measuring fixture according to claim 1, characterized in that: Each of the multiple sliding rods (9) is fixedly connected to a clamping ring (10), and the clamping ring (10) is uniformly connected to a ball bearing (11) inside.

5. The adjustable sleeve roundness measuring fixture according to claim 1, characterized in that: The roundness meter (3) is fixedly connected to a measuring head (4) at its bottom, and the measuring head (4) extends to the bottom of the mounting bracket (2).

6. The adjustable sleeve roundness measuring fixture according to claim 1, characterized in that: The auxiliary component includes a cylinder (5), which is fixedly connected to the top of the operating table (1), and a support ring (6) is fixedly connected to the top of the cylinder (5).

7. The adjustable sleeve roundness measuring fixture according to claim 1, characterized in that: The circular frame (7) is fixedly connected to two mounting plates (17) on the outside. The two mounting plates (17) are threaded with screws (18) inside, and a limiting spring (19) is sleeved on the outside of the screws (18).

8. The adjustable sleeve roundness measuring fixture according to claim 1, characterized in that: The roundness tester (3) is a dial indicator.

9. An adjustable sleeve roundness measuring fixture according to claim 1 or 8, characterized in that: The internal thread of the fixing frame (2) is connected to a locking bolt (20) that limits the roundness gauge (3).

Images