Automatic internal and external tooth switching device of gear shaping machine
By designing an automatic internal and external gear conversion device for the gear shaper, an automatic conversion is achieved using a combination of cam and piston rod, which solves the errors and adhesion problems caused by manual adjustment, improves processing accuracy and equipment stability, and reduces maintenance costs.
Patent Information
- Application Number
- CN202520313463.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-26
AI Technical Summary
In existing gear shaping machines, the conversion between internal and external gears mainly relies on manual adjustment, which is difficult to operate, prone to errors and sticking, and affects processing accuracy and equipment life.
Design an automatic internal and external gear switching device for a gear shaping machine. Utilize a combination structure of cam, piston rod, and shift fork. Drive the piston rod up and down by pressurized oil to achieve automatic switching between internal and external gears. Position control is achieved through proximity switches and a hydraulic system to ensure stability.
It reduces the difficulty of operation for workers, reduces errors, avoids adhesion during the conversion between internal and external teeth, improves machining accuracy and equipment stability, and reduces maintenance costs.
Smart Images
Figure CN223776171U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a gear shaping machine technical field, concretely is a gear shaping machine inner and outer tooth automatic conversion device. BACKGROUND
[0002] A gear shaping machine is a metal cutting machine tool, which is mainly used for machining inner and outer straight teeth and helical cylindrical gears and other tooth-shaped parts. Its working principle is to process by gear shaping cutter according to the generating method, and the gear shaping cutter performs up-down reciprocating cutting movement, while rolling relative to the workpiece, so as to process the tooth profile of the gear.
[0003] At present, the inner and outer tooth conversion of the gear shaping machine at home and abroad is mostly manually adjusted, and the operation requirement for workers is relatively high in actual production. The gear manufacturing industry belongs to a technology and labor-intensive industry, and workers need to have rich technical knowledge and practical experience to perform relevant work. In actual operation, sometimes the workers may fail to adjust in place, and the inner and outer tooth conversion may be stuck, which may cause abnormal wear of the cam, and even cause the processed gear to be scrapped. In the current market environment, it is difficult to create greater economic benefits for small and medium-sized processing enterprises.
[0004] Therefore, in view of the above, the existing structure and defects are researched and improved, and a gear shaping machine inner and outer tooth automatic conversion device is provided. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a gear shaping machine inner and outer tooth automatic conversion device to solve the problems in the background art.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a gear shaping machine inner and outer tooth automatic conversion device, which comprises a cam and a let-off shaft, the middle of the cam is vertically penetrated by the let-off shaft, one side of the cam is vertically provided with a piston rod, a yoke is connected between the piston rod and the cam, the top end side of the piston rod is respectively provided with a first proximity switch and a second proximity switch, and the top of the piston rod is provided with a sensing piece.
[0007] Further, one side of the cam is provided with a first shell, one side of the first shell is connected with a second shell, and the upper and lower sides of the second shell are both connected with a third shell.
[0008] Further, a group of A through holes are arranged on the bottom of the second shell, and a group of B through holes are arranged on the top of the second shell.
[0009] Further, the cam is fixed to the lower end surface of the let-off shaft by the way of inner diameter centering and key groove guiding, and the piston rod and the let-off shaft are parallel to each other.
[0010] Further, the first shell is internally mounted with a limiting piece, and the limiting piece is attached to the side of the cam away from the fork.
[0011] Further, the first shell and the second shell are connected and fixed with each other by bolts, and the second shell and the third shell are connected and fixed with each other by bolts.
[0012] Further, the piston rod is vertically mounted between the upper and lower third shells, and the inductor is horizontally fixed to the top of the piston rod by bolts.
[0013] Further, the first proximity switch and the second proximity switch are fixedly mounted on the outer side of the second shell, and the second shell is provided in an upper-lower split structure.
[0014] The utility model provides a gear shaping machine inner and outer tooth automatic conversion device has the following beneficial effects:
[0015] 1, the utility model discloses a cam is fixed on the tool rest shaft through the inner diameter centering and the key groove guiding mode, and one side of the cam is connected with the piston rod through the fork, and the piston rod is vertically arranged between the upper and lower third shells, the A through port and B through port structure arranged on the side of the upper and lower third shells are used to pass in the pressure oil, so that the up-down movement of the piston rod is realized, the movement of the fork and the cam is driven, and the automatic conversion of the inner and outer teeth of the gear shaping machine is realized, the use of the above structure can reduce the operation difficulty of workers as far as possible, reduce the error of manual adjustment, avoid the mistakes caused by the operation of workers as far as possible, avoid the situation that the adjustment is not in place, and also avoid the problem of inner and outer tooth conversion adhesion as far as possible, the whole mechanism is simple to operate, stable and reliable in control, reduces the maintenance cost of the machine tool, and increases the economic benefit of enterprises.
[0016] 2, the utility model discloses that the first shell, the second shell and the third shell are connected and fixed with each other by bolts, and the structure can be disassembled, the whole device can be disassembled and maintained by the operating personnel, the position control is completed through the first proximity switch and the second proximity switch when the inner and outer tooth conversion is completed, the hydraulic lock of the hydraulic system is started, the closed-loop control of pressure is completed, the position of the cam is stably kept, the position is moved due to the change of system pressure, the machine tool is avoided to fail, on the one hand, the structural stability of the whole device can be ensured, so that the machining precision is guaranteed, on the other hand, the damage of the equipment structure can be reduced, and the maintenance cost and frequency of the equipment are reduced. ACCURACY
[0017] Figure 1 It is the front sectional view structural schematic drawing of the body of the utility model kind of gear shaping machine inner and outer tooth automatic conversion device;
[0018] Figure 2 It is the support side sectional view structure schematic diagram of the automatic conversion device of the internal and external gear of the gear shaping machine of the utility model.
[0019] Figure 3 It is the support side sectional view structure schematic diagram of the automatic conversion device of the internal and external gear of the gear shaping machine of the utility model. Figure 2 The A place enlarged structure schematic diagram of the utility model.
[0020] In the drawing: 1, cam; 2, let tool shaft; 3, piston rod; 4, shift fork; 5, first proximity switch; 6, second proximity switch; 7, inductive element; 8, first shell; 9, second shell; 10, third shell; 11, A through port; 12, B through port; 13, limiting piece. DETAILED DESCRIPTION
[0021] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0022] As Figures 1 to 2 shown, an automatic conversion device of internal and external gear of gear shaping machine, including cam 1 and let tool shaft 2, the middle vertical of cam 1 is passed through let tool shaft 2, and the side of cam 1 is vertically provided with piston rod 3, and piston rod 3 and cam 1 are connected with shift fork 4, and the top end side of piston rod 3 is respectively erected with first proximity switch 5 and second proximity switch 6, and the top of piston rod 3 is installed with inductive element 7,
[0023] The side of cam 1 is provided with first shell 8, and the side of first shell 8 is connected with second shell 9, and the upper and lower sides of second shell 9 are both connected with third shell 10, and a group of A through ports 11 are arranged on the bottom of second shell 9, and a group of B through ports 12 are arranged on the top of second shell 9, and cam 1 is fixed on the lower end surface of let tool shaft 2 by the way of inner diameter centering and key groove guiding, and piston rod 3 and let tool shaft 2 are parallel to each other, cam 1 is fixed on let tool shaft 2 by the way of inner diameter centering and key groove guiding, at the same time, the side of cam 1 is connected with piston rod 3 through shift fork 4, and piston rod 3 is vertically arranged between the upper and lower third shell 10, and by using the structure of A through port 11 and B through port 12 arranged on the side of the upper and lower third shell 10, the pressure oil is input, the up and down movement of piston rod 3 can be realized, thereby driving the movement of shift fork 4 and cam 1, and the automatic conversion of internal and external gear of gear shaping machine is realized.
[0024] As Figures 1 to 3As shown, the first shell 8 is internally mounted with a limiting piece 13, and the limiting piece 13 is abutted to the side of the cam 1 away from the fork 4, the first shell 8 and the second shell 9 are fixedly connected with each other through bolts, and the second shell 9 and the third shell 10 are fixedly connected with each other through bolts, the piston rod 3 is vertically installed between the upper and lower third shells 10, and the sensing piece 7 is horizontally fixed to the top of the piston rod 3 through bolts, the first proximity switch 5 and the second proximity switch 6 are fixedly installed on the outer side of the second shell 9, and the second shell 9 is provided in a split structure from top to bottom, since the first shell 8, the second shell 9 and the third shell 10 are cooperated with each other through bolts, the structure is detachable, and the whole device can be easily disassembled and maintained by the operator.
[0025] In summary, as shown in the figure, Figures 1 to 3 Figures 1 to 3 The gear shaping machine inner and outer tooth automatic conversion device is used, first, the cam 1 is fixed on the tool shaft 2 through the inner diameter centering and the key groove guiding mode, then the cam 1 is adjusted to the required position through the up-down movement of the fork 4.
[0026] The fork 4 is fixed on the piston rod 3 through threads, so that the piston rod 3 can be moved up and down in the vertical direction through the A through hole 11 and the B through hole 12 provided on the upper and lower third shells 10, thereby driving the movement of the fork 4 and the cam 1, realizing the automatic conversion of the inner and outer teeth of the gear shaping machine, and the limiting piece 13 in the first shell 8 can limit the first proximity switch 5 in the second shell 9 to a certain extent, avoiding excessive displacement of the tool shaft 2.
[0027] After the inner and outer tooth conversion is completed, the sensing piece 7 on the top of the piston rod 3 is used to complete the position control through the first proximity switch 5 and the second proximity switch 6, and the hydraulic system hydraulic lock is started to complete the closed-loop control of the pressure, realize the stable retention of the position of the cam 1, and avoid the position movement caused by the change of the system pressure, causing the machine tool failure.
[0028] The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better explain the principles of the present application and practical application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.
Claims
1. An automatic internal and external gear conversion device for a gear shaper, comprising a cam (1) and a deflector shaft (2), characterized in that: The cam (1) has a vertically penetrating blade shaft (2) in the middle, and a piston rod (3) is vertically arranged on one side of the cam (1). A fork (4) is connected between the piston rod (3) and the cam (1). A first proximity switch (5) and a second proximity switch (6) are respectively mounted on one side of the top of the piston rod (3), and a sensing element (7) is installed on the top of the piston rod (3).
2. The automatic internal and external gear conversion device for a gear shaping machine according to claim 1, characterized in that, The cam (1) has a first housing (8) on one side, and a second housing (9) is connected to one side of the first housing (8), and a third housing (10) is connected to both the upper and lower sides of the second housing (9).
3. The automatic internal and external gear conversion device for a gear shaping machine according to claim 2, characterized in that, The third housing (10) is located at the bottom of the second housing (9) and has an A port (11) thereon, and the third housing (10) is located at the top of the second housing (9) and has a B port (12) thereon.
4. The automatic internal and external gear conversion device for a gear shaping machine according to claim 1, characterized in that, The cam (1) is fixed to the lower end surface of the tool-removing shaft (2) by means of inner diameter centering and keyway guidance, and the piston rod (3) and the tool-removing shaft (2) are parallel to each other.
5. The automatic internal and external gear conversion device for a gear shaping machine according to claim 2, characterized in that, The first housing (8) has a limiting member (13) installed inside, and the limiting member (13) is attached to the side of the cam (1) away from the shift fork (4).
6. The automatic internal and external gear conversion device for a gear shaping machine according to claim 2, characterized in that, The first housing (8) and the second housing (9) are connected and fixed to each other by bolts, and the second housing (9) and the third housing (10) are connected and fixed to each other by bolts.
7. The automatic internal and external gear conversion device for a gear shaping machine according to claim 6, characterized in that, The piston rod (3) is vertically installed between the upper and lower third housings (10), and the sensing element (7) is horizontally fixed to the top of the piston rod (3) by bolts.
8. The automatic internal and external gear conversion device for a gear shaping machine according to claim 6, characterized in that, The first proximity switch (5) and the second proximity switch (6) are fixedly installed on the outer side of the second housing (9), which is constructed by combining the upper and lower parts.