Polishing device for keyway broach

Abstract

The utility model relates to the field of machine tool machining, and particularly discloses a polishing device of a keyway broach, which comprises a broach mechanism, the keyway broach is arranged in front of the broach mechanism, an adjusting chute is arranged on the front surface of the broach mechanism, a polishing rod is arranged in the adjusting chute, and a polishing mechanism is mounted at the front end of the polishing rod. The polishing mechanism comprises a lower mounting seat and an upper mounting seat, a spring mounting groove is formed in the upper surface of the upper mounting seat, a spring is mounted between the interior of the spring mounting groove and the upper mounting seat, guide grooves are formed in the two sides of the lower mounting seat, and sliding guide blocks are mounted at the positions, corresponding to the guide grooves, of the inner side wall of the upper mounting seat. And filing teeth are arranged on the upper surface of the upper mounting seat. The inner side wall of the groove can make contact with the upper mounting base, so that the upper mounting base compresses the spring, the filing teeth on the outer side of the lower mounting base are integrally attached to the inner side of the whole groove, and when the polishing rod and the key groove broach integrally move, the inner side wall of the groove is ground and polished through the filing teeth.

Description

Technical Field

[0001] The utility model relates to the field of machine tool processing, in particular to a polishing device for a keyway broach. Background Art

[0002] A broach is a forming tool used for broaching. There are multiple rows of teeth on the surface of the tool. The size and shape of each row of teeth increase and change successively from the cutting entry end to the cutting exit end. When the broach performs broaching motion, each tooth cuts off a certain thickness of metal from the workpiece, and finally obtains the required size and shape. Broaches are often used to process round holes, spline holes, keyways, planes and formed surfaces in batch and mass production, with high productivity.

[0003] However, when the keyway broach is used to process the inner groove of a deeper ring, it is inconvenient to grind it with a file. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a polishing device for a keyway broach, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: a polishing device for a keyway broach, comprising a broach mechanism, a keyway broach is arranged in front of the broach mechanism, an adjusting slide groove is provided on the front surface of the broach mechanism, a polishing rod is arranged inside the adjusting slide groove, a polishing mechanism is installed on the front end of the polishing rod, and the polishing mechanism comprises: a lower mounting seat and an upper mounting seat, a spring mounting groove is provided on the upper surface of the upper mounting seat, a spring is installed between the inside of the spring mounting groove and the upper mounting seat, guide grooves are provided on both sides of the lower mounting seat, a sliding guide block is installed on the inner side wall of the upper mounting seat corresponding to the position of the guide groove, and file teeth are provided on the upper surface of the upper mounting seat.

[0006] As a further solution of the utility model: one end of the polishing rod is located in front of the broaching mechanism and is equipped with a sliding seat, a positioning bolt is installed on the sliding seat, the end of the positioning bolt is located on the inner side of the adjusting slot and is equipped with a clamping pad, and the outer side of the adjusting slot is located on the front surface of the broaching mechanism and is provided with an angle adjustment scale.

[0007] As a further solution of the utility model: a tool clamping seat is installed on the front surface of the broach mechanism corresponding to the outer side of the keyway broach, and a tooth array is provided on the lower surface of the keyway broach.

[0008] As a further solution of the utility model: the upper mounting seat slides in a limited position through the sliding guide block and the guide groove, and the spring is fixedly connected to the lower mounting seat and the upper mounting seat.

[0009] As a further solution of the utility model: the width dimension of the blade teeth is the same as the width dimension length of the upper mounting seat.

[0010] As a further solution of the utility model: the polishing rod is fixedly connected to the sliding seat, and the positioning bolt is engaged and rotated with the sliding seat.

[0011] As a further solution of the utility model: a downward pressing groove is opened below one end of the upper mounting seat corresponding to the upper surface of the lower mounting seat, and the inner diameter of the upper mounting seat matches the outer diameter of the lower mounting seat.

[0012] As a further solution of the utility model: the center position of the adjusting slide groove coincides with the center position of the knife clamping seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. After controlling the angle between the polishing mechanism as a whole and the keyway broach by using the angle adjustment scale on the outside of the adjusting slot, the clamping pad is clamped on the inside of the adjusting slot by rotating the control positioning bolt, so that workpieces with different slot spacings can be processed.

[0015] 2. The inner wall of the groove will contact the upper mounting seat, causing the upper mounting seat to move as a whole toward the position of the lower mounting seat and compress the internal spring. The file teeth on the outer side of the lower mounting seat will fit the inner side of the entire groove as a whole. When the polishing rod and the keyway broach move as a whole, the file teeth are used to grind and polish the inner wall of the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a polishing device for a keyway broach;

[0017] Figure 2 An exploded view of a polishing mechanism in a polishing device for a keyway broach;

[0018] Figure 3 The present invention is a schematic diagram of the installation of a polishing rod in a polishing device for a keyway broach;

[0019] Figure 4 The present invention is a side view of the entire device in a polishing device for a keyway broach;

[0020] Figure 5 The present invention is a front view of the entire device in a polishing device for a keyway broach.

[0021] In the figure: 1. broach mechanism; 2. clamping seat; 3. polishing rod; 4. polishing mechanism; 5. keyway broach; 6. knife teeth; 7. adjusting slide groove; 8. angle adjustment scale; 301. sliding seat; 302. positioning bolt; 303. clamping pad; 401. lower mounting seat; 402. upper mounting seat; 403. lower pressure groove; 404. guide groove; 405. spring mounting groove; 406. sliding guide block; 407. spring; 408. file teeth. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-5 As shown, the present embodiment provides a polishing device for a keyway broach, comprising a broach mechanism 1, characterized in that a keyway broach 5 is arranged in front of the broach mechanism 1, an adjusting slide groove 7 is provided on the front surface of the broach mechanism 1, a polishing rod 3 is arranged inside the adjusting slide groove 7, a polishing mechanism 4 is installed at the front end of the polishing rod 3, and the polishing mechanism 4 comprises: a lower mounting seat 401 and an upper mounting seat 402, the inner diameter dimension of the upper mounting seat 402 matches the outer diameter dimension of the lower mounting seat 401, and the upper mounting seat 402 is located at an end away from the polishing rod 3 and is provided with an inclination angle, which can be used to squeeze the upper mounting seat 402 toward the position of the lower mounting seat 401 when contacting the workpiece groove, A lower pressing groove 403 is provided below one end of the upper mounting seat 402 corresponding to the upper surface of the lower mounting seat 401, a spring mounting groove 405 is provided on the upper surface of the upper mounting seat 402, a spring 407 is installed between the inside of the spring mounting groove 405 and the upper mounting seat 402, the spring 407 is fixedly connected to the lower mounting seat 401 and the upper mounting seat 402, guide grooves 404 are provided on both sides of the lower mounting seat 401, a sliding guide block 406 is installed on the inner side wall of the upper mounting seat 402 corresponding to the position of the guide groove 404, the upper mounting seat 402 is limited to slide with the guide groove 404 through the sliding guide block 406, and the upper surface of the upper mounting seat 402 is provided with file teeth 408.

[0024] like Figure 2-3As shown, in this embodiment, one end of the polishing rod 3 is located in front of the broaching mechanism 1 and a sliding seat 301 is installed. The polishing rod 3 is fixedly connected to the sliding seat 301. A positioning bolt 302 is installed on the sliding seat 301. The positioning bolt 302 engages and rotates with the sliding seat 301. The end of the positioning bolt 302 is located on the inner side of the adjusting slide groove 7 and a clamping pad 303 is installed. The center position of the adjusting slide groove 7 coincides with the center position of the clamping knife seat 2. When the polishing mechanism 4 rotates around the center position, the arc coincides with the keyway broach 5. The arc size is the same when the whole rotates around the center position of the circle. Therefore, when the keyway broach 5 cuts to produce a notch, when the workpiece rotates, the polishing mechanism 4 will enter the previous groove for grinding and polishing. The outer side of the adjustment slide groove 7 is located on the front surface of the broach mechanism 1 and an angle adjustment scale 8 is provided. The front surface of the broach mechanism 1 is corresponding to the outer side of the keyway broach 5 and a tool clamping seat 2 is installed. The lower surface of the keyway broach 5 is provided with an array of teeth 6. The width dimension of the teeth 6 is the same as the width dimension length of the upper mounting seat 402.

[0025] The working principle of the utility model is as follows: when processing is required, the angle between the two adjacent grooves to be cut is first determined, and a groove is first processed on the inner side of the workpiece by the keyway broach 5 and the cutter teeth 6, and then the sliding seat 301 is adjusted to slide on the inner side of the slide groove 7 as a whole, and the angle between the polishing mechanism 4 as a whole and the keyway broach 5 is controlled by the angle adjustment scale 8 on the outer side of the adjustment slide groove 7, and the clamping pad 303 is clamped on the inner side of the adjustment slide groove 7 by rotating the control positioning bolt 302, and the polishing mechanism 4 as a whole corresponds to the outer side of the position of the groove processed first, and when the keyway is broached, the polishing mechanism 4 is adjusted to slide on the inner side of the adjustment slide groove 7 as a whole. After the knife 5 contacts the inside of the workpiece for processing again, the polishing mechanism 4 as a whole will contact the inside of the groove, and the inner wall of the groove will contact the upper mounting seat 402, so that the upper mounting seat 402 moves as a whole to the position of the lower mounting seat 401, and compresses the internal spring 407, then the file teeth 408 on the outside of the lower mounting seat 401 fit the inner side of the entire groove as a whole, and when the polishing rod 3 and the keyway broach 5 move as a whole, the file teeth 408 are used to grind and polish the inner wall of the groove. Therefore, after the workpiece rotates as a whole, the polishing mechanism 4 will process the inside of the previously processed groove.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for a keyway broach, comprising a broach mechanism (1), characterized in that: A keyway broach (5) is arranged in front of the broach mechanism (1), an adjustment groove (7) is provided on the front surface of the broach mechanism (1), a polishing rod (3) is arranged inside the adjustment groove (7), a polishing mechanism (4) is installed at the front end of the polishing rod (3), and the polishing mechanism (4) comprises: a lower mounting seat (401) and an upper mounting seat (402), a spring mounting groove (405) is provided on the upper surface of the upper mounting seat (402), a spring (407) is installed between the inside of the spring mounting groove (405) and the upper mounting seat (402), guide grooves (404) are provided on both sides of the lower mounting seat (401), a sliding guide block (406) is installed on the inner side wall of the upper mounting seat (402) at a position corresponding to the guide groove (404), and a file tooth (408) is provided on the upper surface of the upper mounting seat (402).

2. A polishing device for a keyway broach according to claim 1, characterized in that: One end of the polishing rod (3) is located in front of the broaching mechanism (1) and is equipped with a sliding seat (301), a positioning bolt (302) is installed on the sliding seat (301), the end of the positioning bolt (302) is located on the inner side of the adjusting slide groove (7) and is equipped with a clamping pad (303), and the outer side of the adjusting slide groove (7) is located on the front surface of the broaching mechanism (1) and is provided with an angle adjustment scale (8).

3. The polishing device for a keyway broach according to claim 1, characterized in that: A clamping tool seat (2) is installed on the front surface of the broach mechanism (1) corresponding to the outer side of the keyway broach (5), and a tooth array (6) is provided on the lower surface of the keyway broach (5).

4. A polishing device for a keyway broach according to claim 1, characterized in that: The upper mounting seat (402) is limitedly slidable via the sliding guide block (406) and the guide groove (404), and the spring (407) is fixedly connected to the lower mounting seat (401) and the upper mounting seat (402).

5. The polishing device for a keyway broach according to claim 3, characterized in that: The width dimension of the blade teeth (6) is the same as the width dimension length of the upper mounting seat (402).

6. The polishing device for a keyway broach according to claim 2, characterized in that: The polishing rod (3) is fixedly connected to the sliding seat (301), and the positioning bolt (302) is meshed and rotated with the sliding seat (301).

7. The polishing device for a keyway broach according to claim 1, characterized in that: A lower pressing groove (403) is provided below one end of the upper mounting seat (402) corresponding to the upper surface of the lower mounting seat (401), and the inner diameter of the upper mounting seat (402) matches the outer diameter of the lower mounting seat (401).

8. The polishing device for a keyway broach according to claim 3, characterized in that: The center position of the adjusting slide groove (7) coincides with the center position of the knife clamping seat (2).

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