Clamping tool for detecting hardness of pcd cutter
By designing a clamping fixture for PCD tool hardness testing with tilting, rotating, and clamping structures, the problem of existing equipment being inconvenient to tilt is solved, achieving stability and applicability of multi-directional testing, and improving the convenience and stability of testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
Existing clamping fixtures for PCD tool hardness testing are not easy to tilt and cannot meet the requirements for testing the bevel angle of the tool cutting edge, resulting in poor applicability.
A clamping fixture comprising a tilting structure, a rotating structure, and a clamping structure was designed. The tilting structure enables the change of tool angle, the rotating structure enables multi-directional detection, and the clamping structure improves stability, ensuring that the tool does not shift during the detection process.
The applicability and convenience of the clamping fixture for PCD tool hardness testing have been improved, ensuring the stability and fixation of multi-directional testing and enhancing the stability of the testing process.
Smart Images

Figure CN224059665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCD tool clamping technology, and in particular to a clamping fixture for PCD tool hardness testing. Background Technology
[0002] PCD cutting tools are cutting tools made of synthetic polycrystalline diamond. Due to their excellent hardness and wear resistance, PCD cutting tools have become important tools in the industrial field. When testing the hardness of PCD cutting tools, a clamping fixture for PCD cutting tool hardness testing is used to ensure that the tool does not shift or vibrate during the testing process.
[0003] To this end, patent CN219987031U discloses a PCD tool inspection device, relating to the field of tool inspection technology; while this utility model includes a base, the upper surface of which has a first groove at the middle end, and two symmetrically distributed sliders sliding in the first groove, with a movable seat fixedly mounted on the upper end of the two sliders; in this utility model, a motor drives a connecting rod to rotate a lead screw, causing the slider threaded onto the lead screw to move the movable seat, allowing longer tools to be moved into the detection range of the inspection device for inspection, and causing the tool to be tested to translate. When the connecting rod rotates, a belt can drive a drive rod to rotate, and a limiting strip on the drive rod is movably inserted into a limiting groove, so that when the drive rod rotates, it can drive a drive shaft to rotate, and the drive rod, in conjunction with another belt, drives a rotating shaft to rotate, thereby causing the rotating shaft to drive a vertical plate to rotate, thus allowing the tool to be tested to flip over, for detecting the position of more tool surfaces;
[0004] Although the PCD tool detection device mentioned above can flip the tool under test during use, it is inconvenient to tilt and adapt to the requirements of tool cutting edge angle detection, resulting in low applicability during use. Utility Model Content
[0005] The purpose of this invention is to provide a clamping fixture for PCD tool hardness testing, which solves the problem that existing PCD tool hardness testing clamping fixtures are inconvenient to tilt.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a clamping fixture for PCD tool hardness testing, including a base;
[0007] The top of the base is fixed with an inclined structure, the inclined structure includes a first hinge seat fixed to one side of the top of the base, and hinge rods are fixed at both ends of the top of the base away from the first hinge seat. A first electric push rod is hinged to the top of the first hinge seat, and a second hinge seat is hinged to the top of the first electric push rod.
[0008] A fixing plate is fixed to the top of the inclined structure, and a rotating structure is fixed to the top of the fixing plate.
[0009] A turntable is fixed to the top of the rotating structure, and a clamping structure is fixed to the top of the turntable.
[0010] When using this device, the tilting structure facilitates the tilting angle, thereby improving the applicability of the PCD tool hardness testing clamping fixture during use; the rotating structure facilitates multi-directional testing, thereby improving the convenience of using the PCD tool hardness testing clamping fixture; and the clamping structure facilitates fixing the device, thereby improving the stability of the PCD tool hardness testing clamping fixture during use.
[0011] Preferably, the top end of the second hinge seat is fixedly connected to the bottom end of the fixed plate, and one side of the top of the hinge rod is hinged to one side of the fixed plate. When the first electric push rod drives the second hinge seat to move up and down, the second hinge seat drives the fixed plate to move, causing the fixed plate to rotate around one side of the top of the hinge rod, thereby tilting the angle of the fixed plate and changing the angle of the tool.
[0012] Preferably, the rotating structure includes a housing, an internal cavity, a rotating shaft, a gear, a locking block, a movable rod, a return spring, and a handle. The housing is fixed to the top of the fixed plate. The housing has an internal cavity inside, and a rotating shaft is located inside the internal cavity. A gear is fixed to the outside of the rotating shaft. A locking block is located on one side of the gear. Movable rods are evenly fixed to one side of the locking block. One end of each movable rod extends to the outside of the housing and is fixed with a handle. A return spring is sleeved on the outside of each movable rod.
[0013] Preferably, the top end of the rotating shaft extends to the outside of the housing and is fixedly connected to the bottom end of the turntable, while the bottom end of the rotating shaft extends to the inside of the housing and forms a rotating structure with the housing. When the locking block and the gear separate, rotating the turntable will cause the rotating shaft to rotate inside the internal cavity, thereby causing the turntable to rotate the tool and thus changing the direction of the tool.
[0014] Preferably, the locking block and the gear form an engaging structure, and one end of the return spring extends into the interior of the housing. Under the elastic force of the return spring, the locking block is always in contact with the gear, at which point the turntable is in a fixed state, thereby fixing the direction of the tool.
[0015] Preferably, the clamping structure includes a bracket, a second electric push rod, a clamping block, a first support base, a second support base, and a slide rod. The bracket is fixed to one side of the top of the turntable, and the second support base is fixed to the other side of the top of the turntable. The second electric push rod passes through the top of the bracket, and the clamping block is fixed to the bottom of the second electric push rod. Slide rods pass through the interior of the bracket on both sides of the second electric push rod. The top of the base below the clamping block is fixed to the first support base. The second support base supports the tool, and the slide rod enhances the stability of the clamping block during movement. After movement, the clamping block causes the rubber pad to press against the top of the tool.
[0016] Preferably, rubber pads are fixed to both sides of the bottom of the clamping block and both sides of the top of the clamping block and the second support, respectively. The slide rod and the bracket form a sliding structure, and the bottom end of the slide rod is fixedly connected to the top end of the clamping block. At this time, the tool is fixed between the clamping block and the first support. Under the action of the rubber pads, the friction between the tool and the clamping block, the first support, and the second support is increased, thereby preventing the tool from shifting during the detection process.
[0017] The present invention provides a clamping fixture for PCD tool hardness testing, which has the following advantages:
[0018] By setting an inclined structure, when the first electric push rod is working, the first electric push rod will drive the second hinge seat to move up and down, and the second hinge seat will drive the fixed plate to move, so that the fixed plate rotates around one side of the top of the hinge rod, thereby tilting the angle of the fixed plate, thus changing the angle of the tool. This realizes the function of the device to facilitate tilting angle, thereby improving the applicability of the PCD tool hardness testing clamping fixture in use.
[0019] By incorporating a rotating structure, when the locking block and gear are separated, rotating the turntable causes the rotating shaft to rotate within the internal cavity, which in turn causes the turntable to rotate the tool, thereby changing the tool's direction. Under the elastic force of the return spring, the locking block remains in contact with the gear, and the turntable is in a fixed state, thus fixing the direction of the tool. This enables the device to perform multi-directional detection, thereby improving the convenience of using the PCD tool hardness testing clamping fixture.
[0020] By incorporating a clamping structure, the tool is supported by the second support base. The sliding rod enhances the stability of the clamping block during movement. After movement, the clamping block causes the rubber pad to press against the top of the tool, thus fixing the tool between the clamping block and the first support base. The rubber pad increases the friction between the tool and the clamping block, the first support base, and the second support base, thereby preventing the tool from shifting during testing. This achieves the function of easy fixation and improves the stability of the PCD tool hardness testing clamping fixture during use. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0022] Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;
[0023] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0024] Figure 4 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;
[0025] Figure 5 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.
[0026] The reference numerals in the figure are as follows: 1. Base; 2. Inclined structure; 201. First hinge seat; 202. First electric push rod; 203. Hinge rod; 204. Second hinge seat; 3. Fixed plate; 4. Rotating structure; 401. Housing; 402. Internal cavity; 403. Rotating shaft; 404. Gear; 405. Locking block; 406. Movable rod; 407. Return spring; 408. Handle; 5. Turntable; 6. Clamping structure; 601. Bracket; 602. Second electric push rod; 603. Clamping block; 604. First support seat; 605. Second support seat; 606. Slide rod. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-5The present invention provides a clamping fixture for PCD tool hardness testing, including a base 1, an inclined structure 2 fixed to the top of the base 1, the inclined structure 2 including a first hinge seat 201 fixed to one side of the top of the base 1, and hinge rods 203 fixed at both ends of the top of the base 1 away from the first hinge seat 201. A first electric push rod 202 is hinged to the top of the first hinge seat 201, and a second hinge seat 204 is hinged to the top of the first electric push rod 202. The top of the second hinge seat 204 is fixedly connected to the bottom of the fixing plate 3, and one side of the top of the hinge rod 203 is hinged to one side of the fixing plate 3.
[0029] Reference Figure 1 and Figure 2 As shown, when the first electric push rod 202 is activated, the first electric push rod 202 will drive the second hinge seat 204 to move up and down. The second hinge seat 204 will drive the fixed plate 3 to move, so that the fixed plate 3 rotates around one side of the top of the hinge rod 203, thereby tilting the angle of the fixed plate 3, thus changing the angle of the tool.
[0030] A fixing plate 3 is fixed to the top of the inclined structure 2, and a rotating structure 4 is fixed to the top of the fixing plate 3. The rotating structure 4 includes a housing 401, an internal cavity 402, a rotating shaft 403, a gear 404, a locking block 405, a movable rod 406, a return spring 407, and a handle 408. The housing 401 is fixed to the top of the fixing plate 3. The housing 401 has an internal cavity 402 inside, and the internal cavity 402 has a rotating shaft 403 inside. The gear 404 is fixed to the outside of the rotating shaft 403, and a locking block 405 is provided on one side of the gear 404. Movable rods 406 are evenly fixed on one side of the locking block 405. One end of each movable rod 406 extends to the outside of the housing 401 and is fixed with a handle 408. A return spring 407 is sleeved on the outside of each movable rod 406. The top end of the rotating shaft 403 extends to the outside of the housing 401 and is fixedly connected to the bottom end of the turntable 5. The bottom end of the rotating shaft 403 extends to the inside of the housing 401 and forms a rotating structure with the housing 401. The locking block 405 and the gear 404 form a locking structure. One end of the return spring 407 extends to the inside of the housing 401.
[0031] Reference Figure 2 and Figure 3 As shown, pulling handle 408 causes the lever 406 to separate the locking block 405 from the gear 404, thus rotating the turntable 5. The turntable 5 then rotates the shaft 403 inside the internal cavity 402, causing the turntable 5 to rotate the tool and thus change the direction of the tool. When the handle 408 is released, the lever 406 pushes the locking block 405 to move under the elastic force of the return spring 407, so that the locking block 405 is always in contact with the gear 404. At this time, the turntable 5 is in a fixed state, thus fixing the direction of the tool.
[0032] A turntable 5 is fixed to the top of the rotating structure 4, and a clamping structure 6 is fixed to the top of the turntable 5. The clamping structure 6 includes a bracket 601, a second electric push rod 602, a clamping block 603, a first support base 604, a second support base 605, and a slide rod 606. The bracket 601 is fixed to one side of the top of the turntable 5, and the second support base 605 is fixed to the other side of the top of the turntable 5. The second electric push rod 602 passes through the top of the bracket 601, and the clamping block 603 is fixed to the bottom of the second electric push rod 602. Slide rods 606 pass through the interior of the brackets 601 on both sides of the second electric push rod 602. The first support base 604 is fixed to the top of the base 1 below the clamping block 603. Rubber pads are fixed to the bottom sides of the clamping block 603 and the top sides of the second support base 605, respectively. The slide rod 606 and the bracket 601 form a sliding structure, and the bottom end of the slide rod 606 is fixedly connected to the top end of the clamping block 603.
[0033] Reference Figure 2 and Figure 4 As shown, the cutting tool is placed on top of the first support 604 and the second support 605. The second electric push rod 602 is activated, which drives the clamping block 603 to move up and down. The clamping block 603 drives the slide rod 606 to move inside the bracket 601. Under the action of the slide rod 606, the stability of the clamping block 603 during movement is enhanced. After moving, the clamping block 603 causes the rubber pad to press on the top of the cutting tool. At this time, the cutting tool is fixed between the clamping block 603 and the first support 604. Under the action of the rubber pad, the friction between the cutting tool and the clamping block 603, the first support 604 and the second support 605 is increased, thereby preventing the cutting tool from shifting during the detection process.
[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A clamping tool for pcd cutter hardness detection, comprising a base (1); Characterized in that: The top end of the base (1) is fixed with an inclined structure (2), the inclined structure (2) comprises a first hinge seat (201) fixed on one side of the top end of the base (1), the two ends of the top end of the base (1) away from the first hinge seat (201) are fixed with hinge rods (203), the top of the first hinge seat (201) is hinged with a first electric push rod (202), and the top of the first electric push rod (202) is hinged with a second hinge seat (204); The top end of the inclined structure (2) is fixed with a fixed plate (3), and the top end of the fixed plate (3) is fixed with a rotating structure (4); The top end of the rotating structure (4) is fixed with a rotating disc (5), and the top end of the rotating disc (5) is fixed with a clamping structure (6).
2. The clamping tool for detecting the hardness of a PCD cutter according to claim 1, characterized in that: The top end of the second hinge seat (204) is fixedly connected with the bottom end of the fixed plate (3), and one side of the top of the hinge rod (203) is hinged with one side of the fixed plate (3).
3. The clamping tool for pcd cutter hardness detection according to claim 1, characterized in that: The rotating structure (4) comprises a shell (401), an inner cavity (402), a rotating shaft (403), a gear (404), a clamping block (405), a movable rod (406), a reset spring (407) and a handle (408), the shell (401) is fixed at the top end of the fixed plate (3), the inner cavity (402) is arranged in the shell (401), the rotating shaft (403) is arranged in the inner cavity (402), the gear (404) is fixed to the outer side of the rotating shaft (403), the clamping block (405) is arranged on one side of the gear (404), the movable rod (406) is uniformly fixed on one side of the clamping block (405), one end of the movable rod (406) extends to the outside of the shell (401) and is fixed with the handle (408), and the reset spring (407) is sleeved on the outer side of the movable rod (406).
4. The clamping tool for pcd cutter hardness detection according to claim 3, characterized in that: The top end of the rotating shaft (403) extends to the outside of the shell (401) and is fixedly connected with the bottom end of the rotating disc (5), and the bottom end of the rotating shaft (403) extends to the inside of the shell (401) and forms a rotating structure with the shell (401).
5. The pcd tool hardness testing fixture of claim 3, wherein: The clamping block (405) and the gear (404) form a clamping structure, and one end of the reset spring (407) extends to the inside of the shell (401).
6. The pcd tool hardness testing fixture of claim 1, wherein: The clamping structure (6) comprises a support (601), a second electric push rod (602), a clamping block (603), a first support seat (604), a second support seat (605) and a sliding rod (606), one side of the top end of the rotating disc (5) is fixed with the support (601), the other side of the top end of the rotating disc (5) is fixed with the second support seat (605), the second electric push rod (602) penetrates through the top of the support (601), the bottom end of the second electric push rod (602) is fixed with the clamping block (603), the sliding rod (606) penetrates through the inside of the support (601) on both sides of the second electric push rod (602), and the first support seat (604) is fixed to the top end of the base (1) below the clamping block (603).
7. The pcd tool hardness testing fixture of claim 6, wherein: The two sides of the bottom of the clamping block (603) are fixed with rubber pads respectively with the two sides of the top of the clamping block (603) and the second support base (605), the slide bar (606) and the support (601) constitute a sliding structure, and the bottom end of the slide bar (606) is fixedly connected with the top end of the clamping block (603).
Citation Information
Patent Citations
PCD cutter detection device
CN219987031U