High-speed gear slotting tool

Abstract

The utility model relates to the technical field of gear machining, and discloses a high-speed gear slotting tool which comprises a supporting seat and a box body which are connected together, and an inserting shaft which penetrates through the supporting seat and the box body and is rotatably arranged on the supporting seat and the box body, a first driving mechanism for driving the inserting shaft to linearly move and a second driving mechanism for driving the inserting shaft to rotate are respectively mounted on the supporting seat; the first driving mechanism comprises a first motor fixed to the top of the supporting base, a cam is connected to one end of an output shaft of the first motor, the outer wall of the cam is sleeved with a cam disc, and the first driving mechanism drives the inserting shaft to move linearly, and the second driving mechanism drives the inserting shaft to rotate. The bracket bearing is driven by the cam to eccentrically rotate, and is matched with the ball head rod to drive the inserting shaft to linearly move, so that continuous reciprocating motion of the inserting shaft is realized, gear shaping can be performed again in a cutter retracting process, the continuity of the gear shaping process is realized, and the cutting speed and the production efficiency are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a high-speed gear inserting cutter. Background Art

[0002] Gear shaping uses a gear-shaped gear shaping cutter or a rack-shaped comb cutter to cut teeth. When cutting teeth with a gear shaping cutter, the tool makes axial reciprocating motion with the main shaft of the gear shaping machine. At the same time, the machine tool transmission chain causes the gear shaping cutter and the workpiece to rotate relative to each other at a certain speed ratio to ensure that the workpiece rotates one tooth when the gear shaping cutter rotates one tooth, forming an unfolding motion, and the gear tooth shape is accurately enveloped.

[0003] After searching, the patent with application number CN202221321715.3 discloses a high-speed gear shaping power head, including a base, a crankshaft component, a sliding component, a spindle component and a cooling device, the crankshaft component is installed on the base, the sliding component is installed inside the base, the sliding component contacts and cooperates with the eccentric part of the crankshaft component, and pushes the sliding component to move, the sliding component includes a sliding tool holder component and a push rod component, the push rod component is installed inside the sliding tool holder component, the first spring is installed at one end of the sliding tool holder component, and contacts with the push rod component to realize the real-time contact when the push rod component and the crankshaft component move in the opposite direction, the spindle component is connected to the sliding tool holder component through the first pin shaft, the second spring is installed on one side of the spindle component, and contacts with the sliding tool holder component to realize the tool lifting action, and the cooling device is installed at one end of the base. The utility model has a simple and compact structure, a small size, is stable and reliable, can realize high-speed gear shaping cutting and tool letting action, can be independently and flexibly installed on various machine tools, and has broad application prospects and market value.

[0004] The gear slotting cutter currently used for gear processing has a discontinuous gear slotting process, and the tool retraction and tool letting motion are idle strokes. At the same time, because the main cutting motion is reciprocating motion, it is limited by the inertia of reciprocating motion, and its cutting speed is difficult to increase, so its production efficiency is low. Therefore, we need to propose a high-speed gear slotting cutter. Utility Model Content

[0005] The purpose of the utility model is to provide a high-speed gear inserting cutter, which is designed to drive the inserting shaft to move linearly through a first driving mechanism and drive the inserting shaft to rotate through a second driving mechanism, drive the bullneck bearing to rotate eccentrically through a cam, and cooperate with a ball head rod to drive the inserting shaft to move linearly, thereby realizing continuous reciprocating motion of the inserting shaft, and can insert teeth again during the process of retracting the cutter, thereby realizing the continuity of the gear inserting process, thereby improving the cutting speed and production efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed gear insert, comprising a support seat and a box body connected together, an insert shaft penetrating the support seat and the box body and rotatably mounted on the support seat and the box body, one end of the insert shaft is connected to the gear insert, and a first driving mechanism driving the insert shaft to move linearly and a second driving mechanism driving the insert shaft to rotate are respectively mounted on the support seat;

[0007] The first driving mechanism includes a first motor fixed on the top of the support seat, one end of the output shaft of the first motor is equipped with a cam, the outer wall of the cam is sleeved with a cam plate, the inside of the cam is equipped with a T-bolt, the outer wall of the T-bolt is sleeved with a bull leg bearing, and a ball head rod is connected between the plug shaft and the bull leg bearing.

[0008] Preferably, the second driving mechanism comprises a second motor fixed to one side of the support base, and one end of the output shaft of the second motor is connected to the first gear.

[0009] Preferably, an insert shaft support assembly sleeved on the outer wall of the insert shaft is installed inside the box body, a second gear is sleeved on the outer wall of the insert shaft support assembly, and the first gear is meshed with the second gear.

[0010] Preferably, a slide plate is slidably mounted on the bottom of the box body, a connecting rod support is fixed to one side of the box body, and a connecting rod structure for driving the slide plate to slide is rotatably mounted on the connecting rod support.

[0011] Preferably, the connecting rod structure includes a long rod rotatably mounted on the top of the connecting rod support and a short rod rotatably mounted on the bottom of the connecting rod support, one end of the long rod is rotatably provided with a deep groove ball bearing, and the outer wall of the deep groove ball bearing abuts against the outer wall of the cam plate.

[0012] Preferably, an adjusting screw is installed at one end of the short rod, and one end of the adjusting screw abuts against the side of the slide plate.

[0013] Preferably, a through hole is formed on the slide plate, a fixing seat located inside the through hole is connected to the bottom of the box body, and a spring is connected between one side of the fixing seat and the inner wall of the through hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model adopts the design of driving the inserting shaft to move linearly by the first driving mechanism and driving the inserting shaft to rotate by the second driving mechanism, drives the bull leg bearing to rotate eccentrically by the cam, and cooperates with the ball head rod to drive the inserting shaft to move linearly, thereby realizing continuous reciprocating motion of the inserting shaft, and can insert teeth again during the process of retracting the tool, realizing the continuity of the gear inserting process, thereby improving the cutting speed and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the ball head rod, the plug shaft, the first gear, the second gear and the plug shaft support assembly of the utility model;

[0019] Figure 4 It is a cross-sectional view of the ball head rod and the plug-in shaft support assembly of the utility model.

[0020] In the figure: 1. support seat; 2. box body; 3. first motor; 4. cam; 5. bullneck bearing; 6. T-bolt; 7. ball head rod; 9. plug shaft; 10. long rod; 11. deep groove ball bearing; 12. connecting rod support; 13. short rod; 14. adjustment screw; 15. slide plate; 16. through hole; 17. fixing seat; 18. spring; 19. second motor; 20. first gear; 21. second gear; 22. plug shaft support assembly; 23. gear inserter; 24. cam plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: a high-speed gear inserter, comprising a support seat 1 and a box body 2 connected together, an inserting shaft 9 that penetrates the support seat 1 and the box body 2 and is rotatably mounted on the support seat 1 and the box body 2, one end of the inserting shaft 9 is connected to a gear inserter 23, the gear inserter 23 is used to perform gear inserting processing on a gear blank, and a first driving mechanism for driving the inserting shaft 9 to move linearly and a second driving mechanism for driving the inserting shaft 9 to rotate are respectively installed on the support seat 1;

[0023] The first driving mechanism includes a first motor 3 fixed on the top of the support base 1, the first motor 3 is a servo motor, one end of the output shaft of the first motor 3 is mounted with a cam 4, the outer wall of the cam 4 is sleeved with a cam disc 24, and the outer wall of the cam disc 24 is provided with a notch, that is, one half circle of the cam disc 24 has a small diameter, and the other half circle has a large diameter;

[0024] A T-bolt 6 is installed inside the cam 4. Specifically, a T-slot is opened on the lower side of the cam 4. The T-bolt 6 is installed inside the T-slot, and the T-bolt 6 is not located at the center position of the cam 4, that is, the eccentric rotation of the T-bolt 6 is realized. A bull leg bearing 5 is sleeved on the outer wall of the T-bolt 6, and a ball head rod 7 is connected between the plug shaft 9 and the bull leg bearing 5.

[0025] The first motor 3 drives the cam 4 to rotate through the reducer, and the cam 4 drives the T-bolt 6 to rotate eccentrically. The T-bolt 6 pushes the insertion shaft 9 to move linearly back and forth through the bullneck bearing 5 and the ball head rod 7.

[0026] The second driving mechanism includes a second motor 19 fixed to one side of the support base 1 . The second motor 19 is configured as a servo motor. One end of the output shaft of the second motor 19 is connected to a first gear 20 .

[0027] An insert shaft support assembly 22 sleeved on the outer wall of the insert shaft 9 is installed inside the box body 2 , a second gear 21 is sleeved on the outer wall of the insert shaft support assembly 22 , and the first gear 20 is meshed with the second gear 21 .

[0028] like Figure 4 As shown, the plug-in shaft support assembly 22 includes a sleeve, a sleeve washer and a sleeve locking nut sleeveed on the plug-in shaft 9, the outer wall of the sleeve is sleeved with a bearing sleeve, the two ends of the outer wall of the bearing sleeve are respectively sleeved with a gear locking nut and a sleeve locking nut, the outer wall of the bearing sleeve is also sleeved with two groups of angular contact ball bearings located between the gear locking nut and the sleeve locking nut, the second gear 21 is sleeved on the outer wall of the bearing sleeve, and the sleeve locking nut and the outer wall of the two groups of angular contact ball bearings are sleeved with sleeves.

[0029] The second motor 19 drives the insertion shaft support assembly 22 to rotate through the meshing first gear 20 and second gear 21, thereby driving the insertion shaft 9 to rotate.

[0030] A slide plate 15 is slidably mounted on the bottom of the box body 2 , a connecting rod support 12 is fixed to one side of the box body 2 , and a connecting rod structure for driving the slide plate 15 to slide is rotatably mounted on the connecting rod support 12 .

[0031] The connecting rod structure includes a long rod 10 rotatably mounted on the top of the connecting rod support 12 and a short rod 13 rotatably mounted on the bottom of the connecting rod support 12. A deep groove ball bearing 11 is rotatably provided at one end of the long rod 10, and the outer wall of the deep groove ball bearing 11 abuts against the outer wall of the cam plate 24.

[0032] A rotating shaft is inserted and fixed inside the connecting rod support 12, one end of the long rod 10 is connected to the top of the rotating shaft, one end of the short rod 13 is connected to the bottom of the rotating shaft, and the long rod 10 and the short rod 13 rotate synchronously.

[0033] During the rotation of the cam disc 24, the half-circle side wall with a large diameter and the half-circle side wall with a small diameter on the cam disc 24 alternately contact the deep groove ball bearing 11, that is, a small rotation of the long rod 10 and the short rod 13 is realized. When the half-circle side wall with a large diameter on the cam disc 24 contacts the deep groove ball bearing 11, the long rod 10 and the short rod 13 rotate clockwise, and the adjustment screw 14 on the short rod 13 pushes the slide plate 15 to move, and the spring 18 is squeezed. When the half-circle side walls with large and small diameters on the cam disc 24 contact the deep groove ball bearing 11, the long rod 10 and the short rod 13 rotate counterclockwise, and the spring 18 pushes the slide plate 15 to reset.

[0034] An adjusting screw 14 is installed at one end of the short rod 13 , and one end of the adjusting screw 14 abuts against the side of the slide plate 15 .

[0035] A through hole 16 is formed on the slide plate 15 , a fixing seat 17 located inside the through hole 16 is connected to the bottom of the box body 2 , and a spring 18 is connected between one side of the fixing seat 17 and the inner wall of the through hole 16 .

[0036] When in use, the gear blank to be processed is placed at the designated processing position, and the first motor 3 and the second motor 19 are operated at the same time. The first motor 3 drives the cam 4 to rotate through the reducer. Since the T-bolt 6 and the bullneck bearing 5 are not installed at the center position of the cam 4, the cam 4 drives the T-bolt 6 to rotate eccentrically, and drives the inserting shaft 9 to reciprocate through the ball head rod 7 to realize the gear inserting processing of the gear blank. At the same time, the second motor 19 drives the inserting shaft support assembly 22 to rotate through the meshing first gear 20 and the second gear 21, and then drives the inserting shaft 9 to rotate, so as to realize the gear inserting processing of different positions of the gear blank.

[0037] 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 high-speed gear inserter, characterized in that: The invention comprises a support base (1) and a housing (2) connected together, an insertion shaft (9) penetrating the support base (1) and the housing (2) and rotatably mounted on the support base (1) and the housing (2), one end of the insertion shaft (9) being connected to a gear inserter (23), and a first driving mechanism for driving the insertion shaft (9) to move linearly and a second driving mechanism for driving the insertion shaft (9) to rotate respectively being mounted on the support base (1); The first driving mechanism comprises a first motor (3) fixed on the top of the support seat (1); one end of the output shaft of the first motor (3) is mounted with a cam (4); a cam plate (24) is sleeved on the outer wall of the cam (4); a T-bolt (6) is mounted inside the cam (4); a bull leg bearing (5) is sleeved on the outer wall of the T-bolt (6); and a ball head rod (7) is connected between the plug shaft (9) and the bull leg bearing (5).

2. A high-speed gear insert according to claim 1, characterized in that: The second driving mechanism comprises a second motor (19) fixed to one side of the support seat (1), and one end of the output shaft of the second motor (19) is connected to a first gear (20).

3. A high-speed gear insert according to claim 2, characterized in that: An insert shaft support assembly (22) sleeved on the outer wall of the insert shaft (9) is installed inside the box body (2), a second gear (21) is sleeved on the outer wall of the insert shaft support assembly (22), and the first gear (20) is meshed with the second gear (21).

4. The high-speed gear insert according to claim 1, characterized in that: A slide plate (15) is slidably mounted on the bottom of the box body (2), a connecting rod support (12) is fixed on one side of the box body (2), and a connecting rod structure for driving the slide plate (15) to slide is rotatably mounted on the connecting rod support (12).

5. A high-speed gear insert according to claim 4, characterized in that: The connecting rod structure comprises a long rod (10) rotatably mounted on the top of a connecting rod support (12) and a short rod (13) rotatably mounted on the bottom of the connecting rod support (12); a deep groove ball bearing (11) is rotatably mounted on one end of the long rod (10); and an outer wall of the deep groove ball bearing (11) abuts against an outer wall of a cam plate (24).

6. A high-speed gear insert according to claim 5, characterized in that: An adjusting screw (14) is installed at one end of the short rod (13), and one end of the adjusting screw (14) abuts against the side of the slide plate (15).

7. A high-speed gear insert according to claim 6, characterized in that: The slide plate (15) is provided with a through hole (16); the bottom of the box body (2) is connected to a fixing seat (17) located inside the through hole (16); a spring (18) is connected between one side of the fixing seat (17) and the inner wall of the through hole (16).

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