Tooth knife clamping structure

Abstract

The utility model discloses a tooth knife clamping structure which is safe and reliable in machining of sealing teeth on the two sides of a sealing groove and high in production and machining efficiency, and the size of a machined product is stable. The device comprises a clamping sleeve; the sleeve comprises a sleeve part and a sleeve positioning convex ring, the sleeve positioning convex ring is arranged at the front end of the sleeve part, an axial through mounting hole is formed in the radial center of the sleeve, a threaded mounting hole is formed in the radial direction of the sleeve positioning convex ring, and the inner end of the threaded mounting hole is communicated to the axial through mounting hole; a locking bolt; the tooth knife body comprises a knife body clamped part, a transition part and a blade part, the knife body clamped part is of a cylindrical structure, the front end of the knife body clamped part protrudes forwards to form the transition part, and the front end of the transition part protrudes forwards to form the blade part; the clamped part of the cutter body is inserted into the front end area of the axial through hole, and the cutting edge part is arranged in a forward protruding mode.

Description

Technical Field

[0001] This utility model relates to the technical field of dental knife assembly, specifically a dental knife clamping structure. Background Technology

[0002] In the machining industry, processing technology and cutting tools are developed based on drawings before product processing. However, for some special machining details on the drawings, standard cutting tools cannot be selected, and only manually sharpened forming tools can be used.

[0003] The valve sealing component requires the machining of sealing grooves and double-sided sealing teeth A on the part (see...). Figure 1 This type of structure is used to install seals and consists of axially spaced, unconnected internal grooves. In such mechanisms that require deep processing within the sealing space, manually sharpened tools are neither safe nor environmentally friendly during the sharpening process, and are also costly, have low production efficiency, unstable product dimensions, and are prone to product scrapping. Therefore, there is an urgent need to develop a tool clamping structure suitable for making double-sided sealing teeth in sealing grooves to ensure reliable and efficient processing. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a toothed cutter clamping structure that ensures safe and reliable processing of the sealing teeth on both sides of the sealing groove, while also offering high production efficiency and stable product dimensions after processing.

[0005] A dental cutter clamping structure, characterized in that it comprises:

[0006] A clamping sleeve includes a sleeve portion and a sleeve positioning protrusion. The sleeve portion is provided with a sleeve positioning protrusion at its front end. An axially penetrating mounting hole is provided at the radial center of the sleeve. A threaded mounting hole is provided on the radial side of the sleeve positioning protrusion. The inner end of the threaded mounting hole is connected to the axially penetrating mounting hole.

[0007] Locking bolts;

[0008] And a dental knife body, which includes a clamping part, a transition part, and a cutting edge part. The clamping part is a cylindrical structure. The front end of the clamping part protrudes forward to form a transition part, and the front end of the transition part protrudes forward to form a cutting edge part.

[0009] The clamping part of the blade body is inserted into the front end area of ​​the axial through hole. After the locking bolt is threaded into the threaded mounting hole, it presses tightly against the corresponding axial position of the clamping part of the blade body. The blade part is convex and is a blade that convexes radially outward in the thickness direction.

[0010] Its further features are:

[0011] The transition portion includes a frustum section, a small-diameter cylinder, and a semi-cylindrical section. The frustum section is a frustum that gradually narrows from back to front. The front end of the frustum section is a forward-convex small-diameter cylinder, and the front end of the small-diameter cylinder forms a forward-convex semi-cylindrical section through the transition end.

[0012] The cutting edge is specifically a radially convex semi-circular cutting edge. The semi-circular cutting edge forms radially symmetrically convex cutting edges at both ends in the thickness direction. The semi-circular cutting edge provides radial adjustment space for the cutting edge after the sealing teeth are processed, ensuring that the inner surface of the product's hole groove is not damaged.

[0013] The outer end of the threaded mounting hole is a countersunk hole, and the bolt head is placed in the countersunk hole when the thread cutter body is fastened.

[0014] With the structure of this utility model, the clamping sleeve reliably locks the cutting tool body to the clamping part through the locking bolt. Then, the positioning convex ring of the sleeve acts as a positioning stop mechanism, so that the clamping sleeve is fixed in the inner cavity of the tool holder. The clamping sleeve and the cutting tool body are arranged separately to ensure that the cutting edge of the cutting tool body can reliably extend into the sealed space for processing. The product rotates, but the cutting edge does not rotate, and radial feed is performed until the sealing teeth on both sides of the sealing groove are reliably processed. Then, it retracts radially, adjusts the position axially, and performs radial feed again to process the sealing teeth on both sides of the other sealing groove. The processing of the sealing teeth on both sides of the sealing groove in the same hole groove is completed. The processing of the sealing teeth on both sides of the sealing groove is safe and reliable, with high production efficiency and stable product dimensions after processing. Attached Figure Description

[0015] Figure 1 A schematic diagram of the sealing teeth on both sides of the sealing groove;

[0016] Figure 2 This is a perspective view of the present utility model;

[0017] Figure 3 This is a perspective view of the clamping sleeve of this utility model;

[0018] Figure 4 This is a perspective view of the dental cutter body of this utility model;

[0019] The names corresponding to the serial numbers in the diagram are as follows:

[0020] Clamping sleeve 10, sleeve part 11, sleeve positioning protrusion ring 12, axial through mounting hole 13, threaded mounting hole 14, locking bolt 20, cutting tool body 30, tool body clamping part 31, transition part 32, truncated cone part 321, small diameter cylinder 322, semi-cylindrical part 323, transition end 324, cutting edge part 33, semi-circular cutting edge part 331. Detailed Implementation

[0021] A toothed cutter clamping structure, see Figures 2-4 It includes a clamping sleeve 10, a locking bolt 20, and a cutting tool body 30;

[0022] The clamping sleeve 10 includes a sleeve portion 11 and a sleeve positioning protrusion ring 12. The sleeve portion 10 is provided with a sleeve positioning protrusion ring 12 at its front end. An axially penetrating mounting hole 13 is provided at the radial center of the sleeve 10. A threaded mounting hole 14 is provided on the radial side of the sleeve positioning protrusion ring 12. The inner end of the threaded mounting hole 14 is connected to the axially penetrating mounting hole 13.

[0023] The toothed knife body 30 includes a knife body clamping part 31, a transition part 32, and a cutting edge part 33. The knife body clamping part 31 has a cylindrical structure. The front end of the knife body clamping part 31 protrudes forward to form the transition part 32, and the front end of the transition part 32 protrudes forward to form the cutting edge part 33.

[0024] The clamping part 31 of the blade body is inserted into the front end area of ​​the axial through hole 13. After the locking bolt 20 is threadedly connected to the threaded mounting hole 14, it is pressed tightly against the corresponding axial position of the clamping part 31 of the blade body. The cutting edge part 33 is set to protrude forward, and the cutting edge part 33 is a cutting edge that protrudes radially outward in the thickness direction.

[0025] In a specific embodiment, the transition portion 32 includes a frustum portion 321, a small-diameter cylinder 322, and a semi-cylindrical portion 323. The frustum portion 321 is a frustum that gradually narrows from back to front. The front end of the frustum portion 321 is a forward-protruding small-diameter cylinder 322. The front end of the small-diameter cylinder 322 forms the forward-protruding semi-cylindrical portion 323 through the transition end 324.

[0026] The cutting edge portion 33 is specifically a radially convex semi-circular cutting edge portion 331. The semi-circular cutting edge portion forms radially symmetrically convex cutting edges at both ends in the thickness direction. The setting of the semi-circular cutting edge portion 331 allows the cutting edge portion 33 to have radial movement adjustment space after a ring of sealing teeth is processed, ensuring that the inner surface of the product hole groove will not be damaged.

[0027] The outer end of the threaded mounting hole 14 is a countersunk hole. When the thread cutter body 31 is fastened, the bolt head of the locking bolt 20 is placed in the countersunk hole.

[0028] Its working principle is as follows: The clamping sleeve reliably locks the cutting tool body to the clamping part through the locking bolt. Then, the positioning convex ring of the sleeve acts as a positioning stop mechanism, so that the clamping sleeve is fixed in the inner cavity of the tool holder. The clamping sleeve and the cutting tool body are arranged separately to ensure that the cutting edge of the cutting tool body can reliably extend into the sealed space for processing. The product rotates, but the cutting edge does not rotate, and radial feed is performed until the sealing teeth on both sides of the sealing groove are reliably processed. Then, it retracts radially, adjusts the position axially, and performs radial feed again to process the sealing teeth on both sides of the other sealing groove. The sealing teeth on both sides of the sealing groove in the same hole groove are processed. The processing of the sealing teeth on both sides of the sealing groove is safe and reliable, with high production efficiency and stable product dimensions after processing.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dental cutter clamping structure, characterized in that, It includes: A clamping sleeve includes a sleeve portion and a sleeve positioning protrusion. The sleeve portion is provided with a sleeve positioning protrusion at its front end. An axially penetrating mounting hole is provided at the radial center of the sleeve. A threaded mounting hole is provided on the radial side of the sleeve positioning protrusion. The inner end of the threaded mounting hole is connected to the axially penetrating mounting hole. Locking bolts; And a dental knife body, which includes a clamping part, a transition part, and a cutting edge part. The clamping part is a cylindrical structure. The front end of the clamping part protrudes forward to form a transition part, and the front end of the transition part protrudes forward to form a cutting edge part. The clamping part of the blade body is inserted into the front end area of ​​the axial through hole. After the locking bolt is threaded into the threaded mounting hole, it presses tightly against the corresponding axial position of the clamping part of the blade body. The blade part is convex and is a blade that convexes radially outward in the thickness direction.

2. The dental cutter clamping structure according to claim 1, characterized in that: The transition portion includes a frustum section, a small-diameter cylinder, and a semi-cylindrical section. The frustum section is a frustum that gradually narrows from back to front. The front end of the frustum section is a forward-convex small-diameter cylinder, and the front end of the small-diameter cylinder forms a forward-convex semi-cylindrical section through the transition end.

3. The dental cutter clamping structure according to claim 2, characterized in that: The blade portion is specifically a radially convex semi-circular blade portion, which forms radially symmetrically convex blades at both ends in the thickness direction.

4. The dental cutter clamping structure according to claim 1, characterized in that: The outer end of the threaded mounting hole is a countersunk hole, and the bolt head is placed in the countersunk hole when the thread cutter body is fastened.

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