CN211966199U - A detachable taper shank straight tooth shaper - Google Patents

Abstract

The utility model discloses a detachable taper shank straight tooth shaper, which comprises a tooth part and a taper shank; one end of the tooth part close to the taper shank is provided with a connecting shaft, and the peripheral wall of the connecting shaft is provided with a J-shaped limiting groove. The high end of the limit slot penetrates the end face of the free end of the connecting shaft; the taper shank includes a sleeve and a screw rod, the inner wall of the sleeve is provided with a limit block corresponding to the limit slot, the inner wall of the sleeve is provided with threads, and the screw rod is close to the tooth part. One end is in contact with the free end of the connecting shaft. A limit groove is set on the peripheral wall of the connecting shaft, the limit block is clamped at the end of the J-shaped limit groove, and the low end of the screw is abutted against the high end of the connecting shaft to realize the connection between the tooth part and the taper shank, and there is no need to open the tooth part. To ensure that the teeth have sufficient structural strength, the connecting shaft, sleeve and limit block can be made into different thicknesses according to actual needs, so that they have sufficient structural strength to meet the needs of actual production and processing.

Description

A detachable taper shank straight tooth shaper

technical field

The utility model belongs to the technical field of cutting tools, in particular to a detachable taper shank straight tooth shaper.

Background technique

Gear shaper is a tool for processing internal and external meshing spur or helical gears according to the principle of generation and bonding, especially suitable for processing internal gears with small diameter and small number of teeth. Most of the existing taper shank shaper cutters are integrally formed as a whole. Therefore, during use, when the teeth are worn out, the entire shaper cutter will be discarded, which will result in waste of materials and higher costs.

The patent with the application number CN201721615677.1 discloses a detachable taper shank straight tooth gear-shaping cutter, which needs to open a through hole in the center of the tooth portion, and the connecting shaft of the taper shank passes through the through hole and is connected to the tooth portion. If a connecting shaft with a larger end face diameter is used to enhance the structural strength of the connection, the diameter of the through hole needs to be increased correspondingly, which in turn will reduce the structural strength of the tooth portion. Similarly, if a through hole with a smaller diameter is provided to increase the structural strength of the tooth portion, the diameter of the connecting shaft will inevitably decrease, resulting in low structural strength of the connection between the tooth portion and the taper shank. Therefore, the detachable taper shank straight tooth shaper disclosed in this patent has the defect of low structural strength and cannot meet the needs of actual production and processing.

Utility model content

In view of the above deficiencies in the prior art, the utility model provides a detachable taper shank straight tooth gear shaper, which connects the taper shank and the tooth through the cooperation of the limit groove and the limit block, so that the taper shank and the tooth are connected together. The teeth can be disassembled while ensuring the structural strength of the equipment to meet the needs of actual production and processing.

In order to achieve the above purpose, the solution adopted by the present invention is: a detachable taper shank straight tooth gear shaper, comprising a tooth portion and a tapered shank; the end of the tooth portion close to the tapered shank is provided with a connecting shaft, The peripheral wall of the connecting shaft is provided with a J-shaped limiting groove, a plurality of the limiting grooves are evenly arranged along the circumferential direction of the connecting shaft, and the high-position end of the limiting groove penetrates the end face of the free end of the connecting shaft;

The taper shank includes a sleeve and a screw rod, the inner wall of the sleeve close to one end of the tooth portion is provided with a limit block corresponding to the limit groove, and the inner wall of the sleeve is provided with a limit block to match the screw rod. The screw rod extends into the sleeve, the peripheral wall of the screw rod is connected with the sleeve through the screw thread, and the end of the screw rod close to the tooth part is in contact with the free end of the connecting shaft.

Further, one end of the screw rod close to the tooth portion is provided with a backing plate, the backing plate is parallel to the free end face of the connecting shaft, the backing plate is rotatably connected to the screw rod, and the backing plate can Rotate around its central axis.

Further, the end of the screw rod close to the tooth portion is provided with a connecting block, the side of the backing plate close to the screw rod is provided with a mounting groove, and a thrust bearing is provided in the mounting groove, and the thrust bearing One end of the thrust bearing is connected with the backing plate, and the other end of the thrust bearing is connected with the connecting block.

Further, the end of the screw rod away from the tooth portion is provided with a nut.

Further, a first locking nut is sleeved on the screw rod, and the first locking nut is located between the nut and the sleeve.

Further, the peripheral wall of the connecting shaft is provided with threads, a second locking nut is sleeved on the connecting shaft, and the high end of the second locking nut is in contact with the low end of the sleeve.

The beneficial effects of the present utility model are:

(1) A limit groove is set on the peripheral wall of the connecting shaft, the limit block is clamped at the end of the J-shaped limit groove, and the low end of the screw is abutted on the high end of the connecting shaft to realize the connection between the tooth and the taper shank. The teeth are opened to ensure that the teeth have sufficient structural strength. The connecting shaft, sleeve and limit block can be made into different thicknesses according to actual needs, so that they have sufficient structural strength to meet the needs of actual production and processing;

(2) The structure is simple, the stability is good, and the installation and disassembly are convenient;

(3) The low end of the screw is in contact with the high end of the connecting shaft. The screw and the limit groove cooperate to fix the connecting shaft. The peripheral wall of the screw is connected with the sleeve through the thread, and the screw also has the effect of enhancing the structural strength of the sleeve. The structure of the equipment is strong.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the structure schematic diagram of the taper shank of the present utility model;

Fig. 3 is the tooth structure schematic diagram of the utility model;

Fig. 4 is a partial enlarged view of Fig. 3;

5 is a top view of the connecting shaft of the present invention;

Fig. 6 is the bottom view of the utility model sleeve;

7 is a schematic diagram of the connection structure of the backing plate and the screw of the present invention;

In the drawings: 1- tooth, 2-taper shank, 21-sleeve, 22-screw, 23-limiting block, 24-backing plate, 25-connecting block, 26-installation groove, 27-thrust bearing, 3-connecting shaft, 31-limiting groove, 4-nut, 5-first locking nut, 6-second locking nut.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

This embodiment provides a detachable taper shank straight tooth shaper, as shown in Figure 1, Figure 2 and Figure 3, including a tooth 1 and a taper shank 2; Shaft 3, the peripheral wall of the connecting shaft 3 is provided with a J-shaped limit groove 31, a plurality of limit grooves 31 are evenly arranged along the circumferential direction of the connecting shaft 3, and the high end of the limit groove 31 penetrates the end face of the free end of the connecting shaft 3 (such as 4 and 5).

The taper shank 2 includes a sleeve 21 and a screw rod 22. The inner wall of the sleeve 21 near one end of the tooth portion 1 is provided with a limit block 23 corresponding to the limit groove 31 (as shown in Figures 2 and 6). The inner wall of the sleeve 21 There is a thread matched with the screw 22, the screw 22 extends into the sleeve 21, the inner wall of the sleeve 21 is close to the peripheral wall of the connecting shaft 3, the peripheral wall of the screw 22 is connected with the sleeve 21 through the thread, and the screw 22 is close to the tooth portion One end of 1 is in contact with the free end of connecting shaft 3 .

In this embodiment, as shown in FIG. 7 , one end of the screw 22 close to the tooth portion 1 is provided with a connecting block 25 , and a backing plate 24 is provided below the connecting block 25 , and the backing plate 24 is parallel to the free end face of the connecting shaft 3 . A mounting groove 26 is provided on the side of the backing plate 24 close to the screw 22, and a thrust bearing 27 is arranged in the mounting groove 26. One end of the thrust bearing 27 is connected with the backing plate 24, and the other end of the thrust bearing 27 is connected with the connecting block 25. The backing plate 24 can rotate around its own central axis. By providing the backing plate 25, it is convenient to rotate the screw rod 22 to make it abut with the high-position end face of the connecting shaft 3, and at the same time, it can be well ensured that the backing plate 25 is in contact with the high-position end face of the screw rod 22, and cooperates with the limit groove 31 to the connecting shaft. 3 to fix.

In some other embodiments, the end of the screw 22 away from the tooth portion 1 is provided with a nut 4 , so that it is convenient to use a tool to drive the screw 22 to rotate through the nut 4 . A first locking nut 5 is sleeved on the screw rod 22, and the first locking nut 5 is located between the nut 4 and the sleeve 21. The first locking nut 5 increases the stability of the connection between the screw rod 22 and the sleeve 21, and improves the Equipment structural strength. The peripheral wall of the connecting shaft 3 is provided with threads, and a second locking nut 6 is sleeved on the connecting shaft 3 . By arranging the second lock nut 6 , the inclination of the tooth portion 1 in the horizontal direction can be well avoided during operation.

When connecting, place the high end of the limit groove 31 against the limit block 23, push the connecting shaft 3 to extend into the sleeve 21, and when the limit block 23 contacts the lowest part of the limit groove 31, rotate the connecting shaft 3 , so that the limit block 23 is snapped into the end of the limit slot 31 . Then, rotate the screw 22 to make the screw 22 tightly contact with the high end of the connecting shaft 3 , and turn the first locking nut 5 to make the first locking nut 5 abut against the high end of the sleeve 21 . Finally, turn the second locking nut 6 to make the second locking nut 6 abut against the lower end of the sleeve 21 , and the lower part of the second locking nut 6 is still connected to the connecting shaft 3 through threads.

The above-mentioned embodiments only represent specific embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims (6)

1. A detachable taper shank straight tooth gear shaper cutter is characterized in that: comprises a tooth part and a taper shank; a connecting shaft is arranged at one end, close to the taper shank, of the tooth part, a J-shaped limiting groove is formed in the peripheral wall of the connecting shaft, the limiting grooves are uniformly arranged along the circumferential direction of the connecting shaft, and the high-level end of each limiting groove penetrates through the end face of the free end of the connecting shaft;

the taper shank comprises a sleeve and a screw rod, a limiting block corresponding to the limiting groove is arranged on the inner wall, close to one end of the tooth portion, of the sleeve, threads matched with the screw rod are arranged on the inner wall of the sleeve, the screw rod extends into the sleeve, the peripheral wall of the screw rod is connected with the sleeve through the threads, and one end, close to the tooth portion, of the screw rod is abutted to the free end of the connecting shaft.

2. The detachable taper shank straight tooth slotting cutter according to claim 1, which is characterized in that: the screw rod is close to the one end of tooth portion is equipped with the backing plate, the backing plate with the free end terminal surface of connecting axle is parallel, the backing plate with screw rod rotatable coupling, the backing plate can rotate around self the central axis.

3. The detachable taper shank straight tooth slotting cutter according to claim 2, wherein: the screw rod is close to the one end of tooth portion is equipped with the connecting block, the backing plate is close to one side of screw rod is equipped with mounting groove, be equipped with thrust bearing in the mounting groove, thrust bearing's one end with the backing plate is connected, thrust bearing's the other end with the connecting block is connected.

4. The detachable taper shank straight tooth slotting cutter according to claim 1, which is characterized in that: and a nut is arranged at one end of the screw rod, which is far away from the tooth part.

5. The detachable taper shank straight tooth slotting cutter according to claim 4, wherein: the screw rod is sleeved with a first locking nut, and the first locking nut is located between the screw cap and the sleeve.

6. The detachable taper shank straight tooth slotting cutter according to claim 1, which is characterized in that: the peripheral wall of the connecting shaft is provided with threads, a second locking nut is sleeved on the connecting shaft, and the high end of the second locking nut is abutted to the low end of the sleeve.

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