Gear shaping cutter bar

Abstract

The utility model relates to the technical field of gear shaping machines, in particular to a gear shaping cutter bar which comprises an original cutter bar, a connecting groove is formed in the upper end of the original cutter bar, a limiting groove communicated with a mounting through hole is formed in the bottom of an inner cavity of the connecting groove, a limiting block is arranged in the limiting groove, and a cutter receiving bar is fixedly connected to the upper end of the limiting block. And movable grooves are formed in the front surface and the rear surface of the limiting block, reset springs are fixedly installed on the inner sides of the movable grooves, and one ends of the reset springs are fixedly connected with protruding blocks connected with the installation through holes in an inserted mode. The cutter connecting rod and the original cutter rod are connected in an inserted mode through the connecting groove, the limiting block and the limiting groove, the protruding block connected with the cutter connecting rod is fixedly inserted into the installation through hole through the elastic force of the reset spring, and therefore cutter connecting rods of different lengths can be replaced, and the problems that for a slotting cutter rod, the structure of the cutter connecting rod is fixed, and the cutter connecting rod cannot be replaced easily are solved. And therefore, the technical problems that different machining ranges of the gear shaping machine are difficult to adapt, the adaptive capacity is reduced, and the practicability is not high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shaping machines, in particular to a gear shaping cutter bar. Background Art

[0002] Gear shaping machine is a metal cutting machine tool. It is a gear processing machine tool that uses gear shaping cutters to process internal and external spur and helical cylindrical gears and other toothed parts according to the development method. The gear shaping cutter is used as a tool to process the tooth shape of gears, racks, etc. This processing method is called "gear shaping". When shaping, the gear shaping cutter makes a reciprocating cutting motion up and down, and rolls relative to the workpiece at the same time. Gear shaping machine is mainly used to process multi-link gears and internal gears. After adding accessories, it can also process racks. Using special tools on the gear shaping machine can also process non-circular gears, incomplete gears and internal and external forming surfaces, such as square holes, hexagonal holes, keyed shafts (keys and shafts are connected as one), etc. The processing accuracy can reach 7 to 5 levels, and the maximum diameter of the workpiece is 12 meters. The gear shaping machine is used to process gears. The gear shaping cutter is connected to the bottom of the spindle through the connecting bolt 7. The spindle rotates and moves up and down at the same time to process the gears.

[0003] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0004] The gear shaping cutter bar has a fixed structure, which makes it difficult to adapt to different gear shaping machine processing ranges, reduces the adaptability, and is not very practical. Therefore, it is necessary to provide a gear shaping cutter bar to solve the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the gear shaping cutter bar has a fixed structure, which makes it difficult to adapt to different gear shaping machine processing ranges, reduces the adaptability, and is not practical. In view of the above-mentioned defects of the prior art, a gear shaping cutter bar is provided, including an original cutter bar, a connecting groove is provided at the upper end of the original cutter bar, a limit groove connected to the mounting through hole is provided at the bottom of the inner cavity of the connecting groove, a limit block is arranged inside the limit groove, a connecting cutter bar is fixedly connected to the upper end of the limit block, and a movable groove is provided on the front and rear surfaces of the limit block, a reset spring is fixedly installed on the inner side of the movable groove, and one end of the reset spring is fixedly connected to a convex block plugged into the mounting through hole. The connecting cutter bar in the utility model is plugged with the original cutter bar by means of a connecting groove, a limit block and a limit groove, and the elastic force of the reset spring is used to realize that the convex block connected thereto is plugged into the inside of the mounting through hole, so that the connecting cutter bar of different lengths can be replaced, which solves the technical problem that the gear shaping cutter bar has a fixed structure, which makes it difficult to adapt to different gear shaping machine processing ranges, reduces the adaptability, and is not practical.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a gear inserting cutter bar, comprising an original cutter bar, the outer side of the original cutter bar is symmetrically provided with mounting through holes, and the upper end of the original cutter bar is provided with a connecting groove, the inner bottom of the inner cavity of the connecting groove is provided with a limiting groove connected to the mounting through hole, a limiting block is arranged inside the limiting groove, the upper end of the limiting block is fixedly connected to the connecting cutter bar, and the front and rear surfaces of the limiting block are provided with movable grooves, a reset spring is fixedly installed on the inner side of the movable groove, and one end of the reset spring is fixedly connected to a protrusion plugged into the mounting through hole.

[0007] It is further provided that the longitudinal section of the protrusion is a rectangular structure, and the end of the protrusion away from the return spring is an inclined structure.

[0008] It is further provided that three positioning grooves are evenly opened on the inner side of the connecting groove, and a positioning strip connected to the knife connecting rod is inserted into the interior of each of the positioning grooves.

[0009] It is further provided that a second bolt hole is opened at the lower end of the original cutter rod, and a first bolt hole is opened at the upper end of the connecting cutter rod.

[0010] It is further provided that the limit block is of a rectangular structure, and the limit block and the knife connecting rod are an integrally formed structure.

[0011] It is further arranged that a fixing block is fixedly installed on the inner side of the installation through hole, and connecting springs are fixedly installed on the opposite back sides of the two fixing blocks, and one end of the connecting spring is fixedly connected to a pushing member penetrating the fixing block.

[0012] It is further arranged that the pushing member is in a T-shaped structure, and the pushing member is located inside the connecting spring.

[0013] Compared with the related art, the gear shaping cutter bar provided by the utility model has the following beneficial effects:

[0014] The utility model provides a gear shaping cutter bar, wherein a connecting cutter bar and an original cutter bar are plugged in by means of a connecting groove, a limiting block and a limiting groove, and the elastic force of a reset spring is utilized to realize that a convex block connected with the connecting cutter bar is plugged and fixed in the inside of a mounting through hole, so that connecting cutter bars of different lengths can be replaced, and the technical problem that the gear shaping cutter bar has a fixed structure, which makes it difficult to adapt to different processing ranges of gear shaping machines, reduces the adaptability and has poor practicality is solved.

[0015] The utility model provides a gear inserting cutter bar, which is provided with a pushing member. By pushing the pushing member, a connecting spring is compressed, so that one end of the pushing member pushes a protrusion out of the inside of a mounting through hole, thereby facilitating the disassembly and assembly of the connecting cutter bar and improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of a gear-slotting cutter bar provided by the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the connection between the limit block and the knife connecting rod of the utility model;

[0018] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial enlarged view of part A of the utility model.

[0020] Numbers in the figure: 1. original tool rod; 2. positioning groove; 3. connecting tool rod; 4. first bolt hole; 5. connecting groove; 6. positioning strip; 7. mounting through hole; 8. limiting block; 9. protrusion; 10. second bolt hole; 11. limiting groove; 12. pushing member; 13. connecting spring; 14. fixing block; 15. reset spring; 16. movable groove. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show typical embodiments of the present invention.

[0022] Embodiment 1:

[0023] like Figure 1-4 As shown, a gear inserting cutter bar of the utility model comprises an original cutter bar 1, the outer side of the original cutter bar 1 is symmetrically provided with mounting through holes 7, and the upper end of the original cutter bar 1 is provided with a connecting groove 5, the inner bottom of the inner cavity of the connecting groove 5 is provided with a limiting groove 11 connected with the mounting through hole 7, a limiting block 8 is arranged inside the limiting groove 11, the upper end of the limiting block 8 is fixedly connected with the connecting cutter bar 3, and the front and rear surfaces of the limiting block 8 are provided with movable grooves 16, a reset spring 15 is fixedly installed on the inner side of the movable groove 16, and one end of the reset spring 15 is fixedly connected with a protrusion 9 plugged into the mounting through hole 7.

[0024] like Figure 3 As shown, the longitudinal section of the protrusion 9 is a rectangular structure, and the end of the protrusion 9 away from the return spring 15 is an inclined structure, which facilitates the protrusion 9 to be inserted into the inside of the mounting through hole 7.

[0025] like Figure 1-2 As shown, three positioning grooves 2 are evenly arranged on the inner side of the connecting groove 5 , and a positioning strip 6 connected to the knife connecting rod 3 is inserted into each positioning groove 2 .

[0026] During implementation, the connecting tool rod 3 is connected to the original tool rod 1 by means of a connecting groove 5, a limit block 8 and a limit groove 11, and the elastic force of the reset spring 15 is utilized to realize that the protrusion 9 connected thereto is inserted and fixed inside the mounting through hole 7, so that the connecting tool rod 3 of different lengths can be replaced, thereby solving the technical problem that the gear shaping tool rod has a fixed structure, which makes it difficult to adapt to different gear shaping machine processing ranges, reduces the adaptability, and has poor practicality.

[0027] Embodiment 2:

[0028] like Figure 1-4 As shown, on the basis of embodiment 1, the utility model provides a technical solution: a second bolt hole 10 is opened at the lower end of the original tool rod 1, a first bolt hole 4 is opened at the upper end of the connecting tool rod 3, the limit block 8 is a rectangular structure, and the limit block 8 and the connecting tool rod 3 are an integrally formed structure, a fixing block 14 is fixedly installed on the inner side of the mounting through hole 7, and connecting springs 13 are fixedly installed on the opposite back sides of the two fixing blocks 14, and one end of the connecting spring 13 is fixedly connected to a pushing member 12 that passes through the fixing block 14, the pushing member 12 is a T-shaped structure, and the pushing member 12 is located inside the connecting spring 13.

[0029] During implementation, a pushing member 12 is provided. By pushing the pushing member 12, the connecting spring 13 is compressed, so that one end of the pushing member 12 pushes the protrusion 9 out of the inside of the mounting through hole 7, thereby facilitating the disassembly and assembly of the knife rod 3 and improving the convenience of operation.

[0030] When installing the tool, the present technical solution uses bolts through the first bolt holes 4 to connect and fix the tool to the tool connecting rod 3. When the tool connecting rod 3 needs to be disassembled, the pusher 12 is pushed to compress the connecting spring 13, so that one end of the pusher 12 pushes the protrusion 9 out of the inside of the installation through hole 7, and the reset spring 15 is compressed at this time, and then the tool connecting rod 3 is moved out of the inside of the connecting groove 5 opened by the original tool rod 1, and at the same time, the positioning bar 6 connected to the tool connecting rod 3 is moved out of the inside of the positioning groove 2, and the limit block 8 connected to the tool connecting rod 3 is separated from the inside of the limit groove 11.

[0031] Although the 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 gear shaping tool bar, comprising an original tool bar (1), characterized in that: The outer side of the original knife rod (1) is symmetrically provided with mounting through holes (7), and the upper end of the original knife rod (1) is provided with a connecting groove (5), the inner bottom of the connecting groove (5) is provided with a limiting groove (11) connected with the mounting through hole (7), a limiting block (8) is arranged inside the limiting groove (11), the upper end of the limiting block (8) is fixedly connected with the knife rod (3), and the front and rear surfaces of the limiting block (8) are provided with movable grooves (16), the inner side of the movable groove (16) is fixedly installed with a reset spring (15), and one end of the reset spring (15) is fixedly connected with a protrusion (9) plugged into the mounting through hole (7).

2. A gear shaping cutter bar according to claim 1, characterized in that: The longitudinal section of the protrusion (9) is a rectangular structure, and the end of the protrusion (9) away from the return spring (15) is an inclined structure.

3. The gear shaping cutter bar according to claim 1, characterized in that: Three positioning grooves (2) are evenly arranged on the inner side of the connecting groove (5), and a positioning strip (6) connected to the knife connecting rod (3) is inserted into the interior of each positioning groove (2).

4. The gear shaping cutter bar according to claim 1, characterized in that: The lower end of the original knife rod (1) is provided with a second bolt hole (10), and the upper end of the connecting knife rod (3) is provided with a first bolt hole (4).

5. The gear shaping cutter bar according to claim 1, characterized in that: The limit block (8) is of a rectangular structure, and the limit block (8) and the knife connecting rod (3) are an integrally formed structure.

6. The gear shaping cutter bar according to claim 1, characterized in that: A fixing block (14) is fixedly installed on the inner side of the mounting through hole (7), and connecting springs (13) are fixedly installed on the opposite back sides of the two fixing blocks (14), and one end of the connecting spring (13) is fixedly connected to a pushing member (12) that passes through the fixing block (14).

7. The gear shaping cutter bar according to claim 6, characterized in that: The pushing member (12) has a T-shaped structure, and the pushing member (12) is located inside the connecting spring (13).

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