A detection device for precision cutting tool production of machine tool
By designing multiple clamping plates and a movable frame structure, the machine tool precision cutting tools can be inspected in all directions and easily removed, solving the problem of low efficiency of existing inspection fixtures and improving inspection efficiency and safety.
Patent Information
- Application Number
- CN202522036773.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-23
AI Technical Summary
Existing precision tool inspection fixtures for machine tools require frequent placement and removal, resulting in low inspection efficiency.
It adopts a multi-set clamping plate and moving frame structure, combined with a sleeve and piston system, to achieve all-round clamping and inspection of the tool. The L-shaped handle rod drives the sleeve to rotate for inspection, and the clamping force is released by air pressure to facilitate tool removal.
It improves detection efficiency and safety, simplifies the observation and removal process of cutting tools, and enhances work efficiency.
Smart Images

Figure CN224682125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting tool testing technology, and more specifically, to a testing device for the production of precision cutting tools for machine tools. Background Technology
[0002] During the production of precision cutting tools for machine tools, defects such as chipped edges and wear may occur. Using defective tools will lead to reduced surface quality of the machined products and inaccurate hole positions. Therefore, it is necessary to strictly control the quality of precision cutting tools for machine tools and perform accurate defect detection.
[0003] Existing inspection fixtures for precision cutting tools for machine tools mostly employ multiple tool positioning slots in different directions, with different positioning slots inspecting different positions to achieve all-round inspection of the tool. However, the above inspection method requires the tool to be placed and removed repeatedly, which reduces the efficiency of observation and inspection. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a testing device for the production of precision cutting tools for machine tools. The device uses multiple sets of clamping plates to clamp the cutting tool, and the movable frame can move freely between two fixed rings. The clamping part slides freely on the movable frame. At the same time, rotating the L-shaped handle rod drives the sleeve to rotate on the sliding tube, thereby achieving all-round testing of the cutting tool body and improving observation and testing efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A testing device for precision cutting tool production includes a testing frame fixedly mounted on a testing table; the testing frame includes two sets of fixed rings arranged coaxially; a movable frame is slidably arranged between the two fixed rings; a clamping part for clamping the cutting tool is slidably arranged on the movable frame; the clamping part includes a slide tube that slidably engages with the movable frame; a sleeve is rotatably arranged at the end of the slide tube; a plurality of piston cylinders are uniformly fixed on the outer wall of the sleeve; a piston plate is slidably arranged inside the piston cylinder; a piston rod that slides through the sleeve is fixed on the bottom surface of the piston plate; a tension spring sleeved on the corresponding piston rod is fixedly connected between the piston plate and the outer wall of the sleeve; a clamping plate is fixed at the end of the piston rod; a piston cavity is opened at the end of the sleeve; a sliding groove is opened on the outer wall of the slide tube; an ejector part that slidably engages with the piston cavity is slidably arranged on the sliding groove; and an air supply pipe is connected between the piston cylinder and the piston cavity.
[0007] The present invention is further configured such that: a connecting plate and a bearing plate are respectively fixed to the sides of the two fixing rings; the connecting plate and the bearing plate are both fixedly installed on the testing table by fastening bolts; an observation port is opened on the side of the bearing plate; a testing instrument is installed above the bearing plate; and a controller is fixedly installed on the side of the connecting plate.
[0008] The present invention is further configured such that: the movable frame includes a connecting ring; a plurality of extension plates are uniformly fixed on the outer wall of the connecting ring; the extension plates are slidably disposed between two fixed rings; an annular electromagnet is fixed on the side of one of the fixed rings; a pressure sensor is fixedly installed on the outer wall of the sliding tube; the input end of the controller is electrically connected to the pressure sensor, and its output end is electrically connected to the annular electromagnet.
[0009] The present invention is further configured such that: a guide groove is provided on the inner wall of the connecting ring; the sliding tube is slidably engaged with the connecting ring; and a guide rail is fixed on the outer wall of the sliding tube, which is slidably engaged with the guide groove.
[0010] The present invention is further configured such that: an inclined guide plate is fixed to the end of the clamping plate; an annular handle is fixed to the end of the slide tube; and an L-shaped handle rod is fixed to the top of the piston cylinder.
[0011] The present invention is further configured such that: the ejector portion includes a piston ring and a pressure ring arranged coaxially; an ear rod is fixedly connected between the piston ring and the pressure ring; and the piston ring is slidably engaged with the piston cavity.
[0012] The present invention is further configured such that: an ear plate is fixed to the inner wall of the pressure ring; the ear plate is slidably fitted with the slide groove; a sliding hole is provided on the side of the ear plate; a slide rod that is slidably fitted with the slide hole is fixedly connected between the inner walls of the slide groove; a compression spring sleeved on the slide rod is fixedly connected between the ear plate and the inner wall of the slide groove; and an ejector rod is fixed to the side of the ear plate.
[0013] The present invention is further configured such that: the cutting tool includes a handle; the end of the handle is fixed with a blade; the handle is clamped inside the sleeve by various sets of clamping plates.
[0014] The advantages of this utility model are:
[0015] 1. This utility model uses multiple sets of clamping plates to clamp the cutting tool. The movable frame can move freely between the two fixed rings, and the clamping part slides freely on the movable frame. At the same time, rotating the L-shaped handle rod drives the sleeve to rotate on the sliding tube, realizing all-round inspection of the cutting tool body and improving the efficiency of observation and inspection.
[0016] 2. In this invention, the tool handle is fed into the clamping plates along the inclined guide plates and clamped. When the tool needs to be removed, the clamping part is pulled towards the moving frame, so that the ejector part is squeezed by the connecting ring, thereby driving the piston ring to press into the piston chamber. The air inside the piston chamber is sent into the piston cylinder through the air supply pipe, which in turn drives the piston plate to slide upward along the piston cylinder, overcoming part of the elastic force of the tension spring and reducing the clamping force of the clamping plates on the tool handle. Then the ejector rod pushes the tool handle out a distance, which facilitates the removal of the tool, improves work efficiency, and improves safety. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a testing device for the production of precision cutting tools for machine tools according to this utility model.
[0018] Figure 2 For the present utility model Figure 1 A structural diagram from a top-down perspective.
[0019] Figure 3 For the present utility model Figure 1 A structural diagram from another angle.
[0020] Figure 4 This is a schematic diagram of the structure of the testing frame of this utility model.
[0021] Figure 5 This is a schematic diagram of the structure of the mobile frame of this utility model.
[0022] Figure 6 This is a schematic diagram of the clamping part of this utility model.
[0023] Figure 7 This is a structural schematic diagram of the clamping part of this utility model from another angle.
[0024] Figure 8 This is a schematic diagram of the structure of the ejector portion of this utility model.
[0025] In the diagram: 1. Detection frame; 2. Fixed ring; 3. Moving frame; 4. Clamping part; 5. Slide tube; 6. Sleeve; 7. Piston cylinder; 8. Piston plate; 9. Piston rod; 10. Tension spring; 11. Clamping plate; 12. Piston chamber; 13. Slide groove; 14. Ejector part; 15. Gas supply pipe; 16. Connecting plate; 17. Bearing plate; 18. Observation port; 19. Controller; 20. Connecting ring; 21. Extension plate; 22. Pressure sensor; 23. Guide groove; 24. Guide rail; 25. Inclined guide plate; 26. Annular handle; 27. Piston ring; 28. Pressure ring; 29. Ear rod; 30. Ear plate; 31. Slide hole; 32. Slide rod; 33. Compression spring; 34. Ejector rod; 35. Knife handle; 36. Knife body; 37. Handle rod. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Example 1, please refer to Figures 1-8 The present invention provides the following technical solution:
[0030] Specifically, it refers to a testing device for the production of precision cutting tools for machine tools, including a testing frame 1 fixedly installed on a testing table; characterized in that: the testing frame 1 includes two sets of fixed rings 2 arranged coaxially; a movable frame 3 is slidably arranged between the two fixed rings 2; a clamping part 4 for clamping the cutting tool is slidably arranged on the movable frame 3; the clamping part 4 includes a slide tube 5 that slides and cooperates with the movable frame 3; a sleeve 6 is rotatably arranged at the end of the slide tube 5; a plurality of piston cylinders 7 are uniformly fixed on the outer wall of the sleeve 6; a piston plate 8 is slidably arranged inside the piston cylinder 7; a piston rod 9 that slides through the sleeve 6 is fixed on the bottom surface of the piston plate 8; a tension spring 10 is fixedly connected between the piston plate 8 and the outer wall of the sleeve 6 and sleeved on the corresponding piston rod 9; a clamping plate 11 is fixed at the end of the piston rod 9; a piston cavity 12 is opened at the end of the sleeve 6; a sliding groove 13 is opened on the outer wall of the slide tube 5; an ejector part 14 that slides and cooperates with the piston cavity 12 is slidably arranged on the sliding groove 13; and an air supply pipe 15 is connected between the piston cylinder 7 and the piston cavity 12.
[0031] The specific application of this embodiment is as follows:
[0032] The tool is clamped by multiple clamping plates 11. The moving frame 3 can move freely between the two fixed rings 2. The clamping part 4 slides freely on the moving frame 3. At the same time, the rotating sleeve 6 rotates on the sliding tube 5 to achieve all-round inspection of the tool body and improve the observation and inspection efficiency. When the tool needs to be removed, the clamping part 4 is pulled towards the moving frame 3, so that the ejector part 14 is squeezed by the connecting ring 20. Through the linkage between the clamping part 4 and the ejector part 14, part of the elastic force of the tension spring 10 is overcome. Then the ejector rod 34 pushes the tool out a distance, which facilitates the removal of the tool and improves the work efficiency.
[0033] Example 2, please refer to Figures 1-8 This embodiment 2 is an improvement on the first embodiment as follows: Specifically, a connecting plate 16 and a bearing plate 17 are fixed on the sides of the two fixing rings 2 respectively; the connecting plate 16 and the bearing plate 17 are both fixedly installed on the testing table by fastening bolts; an observation port 18 is opened on the side of the bearing plate 17; a testing instrument is installed above the bearing plate 17; and a controller 19 is fixedly installed on the side of the connecting plate 16.
[0034] A magnifying glass can be installed inside the observation port 18 for observing and inspecting the cutting tool; the inspection instrument can be an inspection microscope to inspect the peripheral and end cutting edges of the blade 36.
[0035] The movable frame 3 includes a connecting ring 20; several extension plates 21 are evenly fixed on the outer wall of the connecting ring 20; the extension plates 21 are slidably disposed between two fixed rings 2; a ring electromagnet is fixed on the side of one fixed ring 2; a pressure sensor 22 is fixedly installed on the outer wall of the slide tube 5; the input end of the controller 19 is electrically connected to the pressure sensor 22, and its output end is electrically connected to the ring electromagnet.
[0036] The inner wall of the connecting ring 20 is provided with a guide groove 23; the slide tube 5 is slidably engaged with the connecting ring 20; the outer wall of the slide tube 5 is fixed with a guide rail 24 that is slidably engaged with the guide groove 23.
[0037] An inclined guide plate 25 is fixed to the end of the clamping plate 11; an annular handle 26 is fixed to the end of the slide tube 5; and an L-shaped handle rod 37 is fixed to the top of a piston cylinder 7.
[0038] The cutting tool includes a handle 35; a blade 36 is fixed to the end of the handle 35; the handle 35 is clamped inside the sleeve 6 by each set of clamping plates 11.
[0039] One specific application of this embodiment is:
[0040] In the initial state, under the tension of each set of tension springs 10, the corresponding piston plates 8, piston rods 9, and clamping plates 11 move closer to each other, sending the tool handle 35 into the sleeve 6 along each set of guide plates 25. The guide plates 25 are squeezed by the tool handle 35 and slide away from each other, thereby driving the piston plates 8 to slide along the corresponding piston cylinders 7. The corresponding tension springs 10 are stretched. When the tool handle 35 slides and contacts the clamping plate 11, under the elastic reset action of each set of tension springs 10, the corresponding clamping plate 11 clamps and fixes the tool handle 35.
[0041] The movable frame 3 can slide freely between the two fixed rings 2 to adjust the observation position and distance between the tool and the observation port 18. During this process, the pressure sensor 22 is pressed down, and the pressure sensor 22 transmits a signal to the controller 19. The controller 19 controls the annular electromagnet to de-energize. After the adjustment of the observation position and distance between the tool and the observation port 18 is completed, the pressure sensor 22 is released, and the controller 19 controls the annular electromagnet to be energized, thereby attracting and fixing the movable frame 3 between the two fixed rings 2. The slide tube 5 is slid along the connecting ring 20 to adjust the observation position of the clamped tool. The L-shaped handle 37 is rotated to drive the sleeve 6 to rotate around the slide tube 5, thereby adjusting the observation angle of the tool and realizing all-round detection of the peripheral and end edges of the tool body 36, improving the observation and detection efficiency.
[0042] Example 3, please refer to Figures 1-8 This third embodiment is an improvement on the second embodiment. Specifically, the ejector part 14 includes a piston ring 27 and a pressure ring 28 arranged coaxially; an ear rod 29 is fixedly connected between the piston ring 27 and the pressure ring 28; the piston ring 27 is slidably engaged with the piston chamber 12.
[0043] An ear plate 30 is fixed to the inner wall of the pressure ring 28; the ear plate 30 is slidably fitted with the slide groove 13; a sliding hole 31 is provided on the side of the ear plate 30; a slide rod 32 that is slidably fitted with the slide hole 31 is fixedly connected between the inner walls of the slide groove 13; a compression spring 33 sleeved on the slide rod 32 is fixedly connected between the ear plate 30 and the inner wall of the slide groove 13; and an ejector rod 34 is fixed to the side of the ear plate 30.
[0044] One specific application of this embodiment is:
[0045] When the clamping part 4 is in the clamping state, under the elastic action of the compression spring 33, the ear plate 30 is pressed against the inner wall of the slide groove 13. At this time, the piston ring 27 is disengaged from the piston chamber 12. When it is necessary to remove the tool, since most of the tool handle 35 is clamped inside the sleeve 6, it is not easy to pull the tool handle 35 directly. If the blade 36 is pulled directly, it is easy to cause a cut. At this time, the clamping part 4 is pulled towards the moving frame 3, so that the pressure ring 28 is squeezed by the connecting ring 20, thereby driving the piston ring 27 to be pressed into the piston chamber 12. The air inside the piston chamber 12 is sent into the corresponding piston cylinder 7 through the air supply pipe 15. The air pressure between the bottom of the piston cylinder 7 and the piston plate 8 increases, driving the piston plate 8 to slide up along the piston cylinder 7, overcoming part of the elastic force of the tension spring 10, reducing the clamping force of each set of clamping plates 11 on the tool handle 35. Then the ejector rod 34 pushes the tool handle 35 out a distance, which facilitates the removal of the tool, improves work efficiency, and improves safety.
[0046] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0048] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0050] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A testing device for the production of precision cutting tools for machine tools, comprising a testing frame (1) fixedly mounted on a testing table; characterized in that: The testing frame (1) includes two sets of fixed rings (2) arranged coaxially; a movable frame (3) is slidably arranged between the two fixed rings (2); a clamping part (4) for clamping the cutting tool is slidably arranged on the movable frame (3); The clamping part (4) includes a slide tube (5) that slides in cooperation with the moving frame (3); a sleeve (6) is rotatably provided at the end of the slide tube (5); a plurality of piston cylinders (7) are uniformly fixed on the outer wall of the sleeve (6); a piston plate (8) is slidably provided inside the piston cylinder (7); a piston rod (9) that slides through the sleeve (6) is fixed on the bottom surface of the piston plate (8); a tension spring (10) sleeved on the corresponding piston rod (9) is fixedly connected between the piston plate (8) and the outer wall of the sleeve (6); a clamping plate (11) is fixed at the end of the piston rod (9); The sleeve (6) has a piston chamber (12) at its end; the slide tube (5) has a slide groove (13) on its outer wall; the slide groove (13) has an ejector part (14) that slides and engages with the piston chamber (12); and the piston cylinder (7) and the piston chamber (12) are connected by a gas supply pipe (15).
2. The testing device for precision cutting tool production according to claim 1, characterized in that: The two fixing rings (2) are respectively fixed with a connecting plate (16) and a bearing plate (17); the connecting plate (16) and the bearing plate (17) are both fixedly installed on the testing table by fastening bolts; the bearing plate (17) has an observation port (18) on its side; a testing instrument is installed above the bearing plate (17); a controller (19) is fixedly installed on the side of the connecting plate (16).
3. The testing device for precision cutting tool production of machine tools according to claim 2, characterized in that: The movable frame (3) includes a connecting ring (20); a plurality of extension plates (21) are uniformly fixed on the outer wall of the connecting ring (20); the extension plates (21) are slidably disposed between two fixed rings (2); a ring electromagnet is fixed on the side of one of the fixed rings (2); a pressure sensor (22) is fixedly installed on the outer wall of the slide tube (5); the input end of the controller (19) is electrically connected to the pressure sensor (22), and its output end is electrically connected to the ring electromagnet.
4. The testing device for precision cutting tool production according to claim 3, characterized in that: The inner wall of the connecting ring (20) is provided with a guide groove (23); the slide tube (5) is slidably engaged with the connecting ring (20); the outer wall of the slide tube (5) is fixed with a guide rail (24) that is slidably engaged with the guide groove (23).
5. The testing device for precision cutting tool production according to claim 4, characterized in that: An inclined guide plate (25) is fixed to the end of the clamping plate (11); an annular handle (26) is fixed to the end of the slide tube (5); and an L-shaped handle rod (37) is fixed to the top of the piston cylinder (7).
6. The testing device for precision cutting tool production according to claim 5, characterized in that: The ejector portion (14) includes a piston ring (27) and a pressure ring (28) arranged coaxially; a lug (29) is fixedly connected between the piston ring (27) and the pressure ring (28); the piston ring (27) is slidably engaged with the piston chamber (12).
7. The testing device for precision cutting tool production according to claim 6, characterized in that: The inner wall of the pressure ring (28) is fixed with an ear plate (30); the ear plate (30) is slidably engaged with the slide groove (13); a sliding hole (31) is provided on the side of the ear plate (30); a slide rod (32) that is slidably engaged with the slide hole (31) is fixedly connected between the inner walls of the slide groove (13); a compression spring (33) sleeved on the slide rod (32) is fixedly connected between the ear plate (30) and the inner wall of the slide groove (13); and an ejector rod (34) is fixedly fixed on the side of the ear plate (30).
8. The testing device for precision cutting tool production according to claim 7, characterized in that: The cutting tool includes a handle (35); a blade (36) is fixed to the end of the handle (35); the handle (35) is clamped inside the sleeve (6) by each set of clamping plates (11).