Gear hobbing machine fixing tool

Abstract

The utility model discloses a gear hobbing machine fixing tool and relates to the technical field of gear hobbing machines, the gear hobbing machine fixing tool comprises a fixing mechanism and further comprises a supporting mechanism, the fixing mechanism comprises a fixing plate, electric cylinders are installed on the periphery of the bottom of the fixing plate, installation frames are installed at the output ends of the four electric cylinders, and the supporting mechanism comprises four adjusting lead screws. The four adjusting lead screws are arranged on the inner walls of the periphery of the mounting frame correspondingly, the outer sides of one ends of the adjusting lead screws are sleeved with driven gears, and supporting rods are arranged on the outer sides of the adjusting lead screws. The servo motor works to enable the four adjusting lead screws to rotate, the four supporting rods can support the inner sides of to-be-machined gears with different diameters, the four electric cylinders work to adjust the distance between the mounting frame and the fixing plate, the length of the portions, located on the top of the fixing plate, of the supporting rods can be adjusted, and the machining precision is improved. And the supporting rods can support the inner sides of the to-be-machined gears with different heights, and the safety of the machining process can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hobbing machines, in particular to a fixed tooling for gear hobbing machines. Background Art

[0002] Gear hobbing machines are the most widely used type of gear processing machine tools. They can cut spur and helical cylindrical gears, as well as worm wheels and sprockets. Gear processing machines that use hobs to process spur, helical and herringbone cylindrical gears and worm wheels by the development method. This type of machine tool can also process workpieces with various special tooth shapes such as splines and sprockets when using special hobs.

[0003] The prior art has the following deficiencies: when the existing gear hobbing machine fixing fixture is used to fix the gear to be processed, due to the different sizes of the gears to be processed, the fixture cannot fully support and fix the inner sides of gears of different sizes, making it easy for the gears to move and deviate during the processing, which in turn affects the safety of the processing process and also affects the efficiency of gear processing.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a fixed tooling for a gear hobbing machine, which rotates four adjusting screws through a servo motor so that four support rods can support the inner sides of gears to be processed with different diameters. At the same time, the operation of four electric cylinders can adjust the distance between the mounting frame and the fixed plate, and the length of the support rods located at the top part of the fixed plate can be adjusted, so that the support rods can support the inner sides of gears to be processed with different heights, so that gears to be processed with different sizes can remain stable during the processing, so as to solve the above-mentioned deficiencies in the technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixed tooling for a gear hobbing machine, including a fixing mechanism, and also including:

[0007] The supporting mechanism is arranged at the bottom of the fixing mechanism and is used to support and fix the gears used for gear hobbing;

[0008] The fixing mechanism comprises a fixing plate, connecting bolts are arranged between the fixing plate and the mounting position of the gear hobbing machine, electric cylinders are fixedly mounted on the four sides of the bottom of the fixing plate, and mounting frames are fixedly mounted on the output ends of the four electric cylinders;

[0009] The supporting mechanism includes four adjusting screws and a servo motor. The four adjusting screws are respectively arranged on the inner walls around the mounting frame. A driven gear is fixedly sleeved on the outer side of one end of the adjusting screw. A support rod is arranged on the outer side of the adjusting screw. The servo motor is fixedly installed in the middle position of the bottom of the mounting frame. A driving gear ring is fixedly installed on the output end of the servo motor, and the driving gear ring is meshed with four driven gears.

[0010] Preferably, the fixing mechanism comprises a fixing seat, and six fixing seats are provided. The six fixing seats are fixedly installed in an equidistant ring shape on the outside of the fixing plate, and the inner wall of the fixing seat is threadedly connected to the outer wall of the adjacent connecting bolt.

[0011] Preferably, the inner wall of the fixing plate is provided with four limiting grooves, which are arranged in a ring shape with equal intervals, and the inner wall of the limiting groove is movably connected to the outer wall of the support rod.

[0012] Preferably, the inner walls around the mounting frame are all provided with mounting grooves, the mounting grooves are arranged directly below the limiting grooves, and the inner walls of the mounting grooves are rotatably connected to the adjacent adjusting screw rods.

[0013] Preferably, a slider is fixedly mounted on the bottom of the support rod, the inner wall of the slider is threadedly connected to the outer wall of the adjacent adjusting screw rod, and the outer wall of the slider is movably connected to the inner wall of the adjacent mounting groove.

[0014] Preferably, the fixing mechanism comprises a limiting plate, and four limiting plates are provided. The four limiting plates are respectively fixedly mounted on the outer sides of the four sides of the mounting frame, and the inner sides of the limiting plates are movably connected to the outer wall of the active gear ring.

[0015] Preferably, the cross-section of the mounting frame when viewed from above is arranged as a cross-shaped structure, and the cross-section of the support rod when viewed from above is arranged as a quarter of a circular structure.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. Through the meshing action between the active gear ring and the driven gear by the servo motor, the four adjusting screws rotate, and then the distance between the four support rods can be adjusted, so that the four support rods can support the inner side of the gears to be processed with different diameters. At the same time, the four electric cylinders can adjust the distance between the mounting frame and the fixed plate, and then the length of the support rods at the top of the fixed plate can be adjusted, so that the support rods can support the inner side of the gears to be processed with different heights, so that the gears to be processed of different sizes can remain stable during the processing, and the situation of gear movement due to incomplete support can be avoided, so as to ensure the safety of the processing process and improve the efficiency of gear processing;

[0018] 2. The limiting plate can limit the rotation of the active gear ring, so that the active gear ring can stably drive the driven gear to rotate. At the same time, the mounting groove can limit the movement of the slider, and the limiting groove can limit the movement of the support rod, so that the support rod remains stable during the adjustment process, so that the support rod can stably support and fix the inner side of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a front vertical sectional view of the utility model.

[0022] Figure 3 For this utility model Figure 2 Enlarged view of part A.

[0023] Figure 4 It is an exploded view of the three-dimensional structure of the fixing mechanism of the utility model.

[0024] Figure 5 It is an exploded three-dimensional structural diagram of the three-dimensional structure of the support mechanism of the utility model.

[0025] Description of reference numerals:

[0026] 1. Fixing mechanism; 101. Fixing plate; 102. Fixing seat; 103. Connecting bolt; 104. Limiting groove; 105. Electric cylinder; 106. Mounting frame; 107. Mounting groove; 108. Limiting plate;

[0027] 2. Support mechanism; 201. Adjusting screw rod; 202. Driven gear; 203. Sliding block; 204. Support rod; 205. Servo motor; 206. Active gear ring. DETAILED DESCRIPTION

[0028] The utility model provides Figure 1 A gear hobbing machine fixing fixture shown includes a fixing mechanism 1 and further includes:

[0029] The supporting mechanism 2 is arranged at the bottom of the fixing mechanism 1 and is used to support and fix the gears used for gear hobbing.

[0030] In order to conveniently install and fix the support mechanism 2, as Figure 2 and Figure 4 As shown, the fixing mechanism 1 includes a fixing plate 101, and connecting bolts 103 are arranged between the fixing plate 101 and the mounting position of the gear hobbing machine. Electric cylinders 105 are fixedly mounted on all four sides of the bottom of the fixing plate 101, and mounting frames 106 are fixedly mounted on the output ends of the four electric cylinders 105. The mounting frame 106 can be used to install and fix the supporting mechanism 2, and the fixing mechanism 1 can be installed to the mounting position in the gear hobbing machine through the connecting bolts 103.

[0031] In order to conveniently support and fix the inner wall of gears of different sizes to be processed, such as Figure 2-3 and Figure 5 As shown, the support mechanism 2 includes four adjusting screw rods 201 and a servo motor 205. The four adjusting screw rods 201 are respectively arranged on the inner walls around the mounting frame 106. A driven gear 202 is fixedly sleeved on the outer side of one end of the adjusting screw rod 201. A support rod 204 is arranged on the outer side of the adjusting screw rod 201. The servo motor 205 is fixedly installed in the middle position of the bottom of the mounting frame 106. A driving gear ring 206 is fixedly installed on the output end of the servo motor 205. The driving gear ring 206 is meshed with the four driven gears 202. The servo motor 205 works through the meshing action between the driving gear ring 206 and the driven gear 202, so that the four adjusting screw rods 201 rotate, and then the distance between the four support rods 204 can be adjusted, so that the support mechanism 2 can support and fix the inner side of gears to be processed of different sizes.

[0032] In order to conveniently install and fix the fixing mechanism 1, as Figure 2 and Figure 4 As shown, the fixing mechanism 1 includes a fixing seat 102, and six fixing seats 102 are arranged. The six fixing seats 102 are fixedly installed in a ring shape with equal intervals on the outside of the fixing plate 101. The inner wall of the fixing seat 102 is threadedly connected to the outer wall of the adjacent connecting bolt 103. The connecting bolt 103 passes through the inner wall of the fixing seat 102 and is threadedly connected to the inner wall of the gear hobbing machine installation part, so that the fixing mechanism 1 can be stably installed in the gear hobbing machine.

[0033] In order to keep the support rod 204 stable during the movement, Figure 2 and Figure 4-5As shown, the inner wall of the fixed plate 101 is provided with four limiting grooves 104, and the four limiting grooves 104 are arranged in a ring with equal intervals. The inner wall of the limiting groove 104 is movably connected to the outer wall of the support rod 204, and the inner wall of the mounting frame 106 is provided with mounting grooves 107. The mounting grooves 107 are arranged directly below the limiting grooves 104, and the inner wall of the mounting grooves 107 is rotatably connected to the adjacent adjusting screw rod 201. A slider 203 is fixedly installed at the bottom of the support rod 204, and the inner wall of the slider 203 is threadedly connected to the outer wall of the adjacent adjusting screw rod 201, and the outer wall of the slider 203 is movably connected to the inner wall of the adjacent mounting groove 107. The mounting groove 107 can limit the movement of the slider 203, and the limiting groove 104 can limit the movement of the support rod 204, so that the four support rods 204 remain stable during the adjustment process, and then the four support rods 204 can stably support the inner side of the gear to be processed.

[0034] In order to keep the active gear ring 206 stable during the rotation process, Figure 2 and Figure 4 As shown, the fixing mechanism 1 includes a limiting plate 108, and four limiting plates 108 are provided. The four limiting plates 108 are respectively fixedly installed on the outer sides of the four sides of the mounting frame 106. The inner side of the limiting plate 108 is movably connected to the outer wall of the active gear ring 206. The limiting plate 108 can limit the rotation of the active gear ring 206, so that the active gear ring 206 remains stable during the rotation process, and then the active gear ring 206 can stably drive the driven gear 202 to rotate.

[0035] In order to enable the support mechanism 2 to stably support the inner side of the gear to be processed, Figure 2 and Figure 4-5 As shown, the top view cross-section of the mounting frame 106 is set as a cross-shaped structure, and the top view cross-section of the support rod 204 is set as a quarter-circular structure. The support rod 204 with a quarter-circular structure can stably support and fix the inner side of the gear to be processed, so that the gear to be processed remains stable during the processing.

[0036] The specific implementation method is as follows: the fixing mechanism 1 is installed on the installation part of the gear hobbing machine so that the fixing seat 102 is aligned with the installation part, and then the connecting bolt 103 is used to penetrate the inner wall of the fixing seat 102 and is threadedly connected to the inner wall of the installation part, so that the device can be installed in the gear hobbing machine, and then the servo motor 205 is operated to make the active gear ring 206 rotate, and the limiting plate 108 can limit the rotation of the active gear ring 206, so that the active gear ring 206 remains stable during the rotation process, and through the meshing action between the gear parts, the four driven gears 202 are rotated, which can drive the four adjusting screw rods 201 to rotate, and then drive the four sliders 203 to move on their outer sides along the inner wall of the installation groove 107, so that the distance between the four support rods 204 can be adjusted. At the same time, the limiting groove 104 can limit the movement of the support rod 204, so that the four support rods 204 can support and fix the inner sides of the gears to be processed of different sizes, and at the same time, the four electric cylinders 105 can drive the mounting frame 106 to move toward the fixed plate 101, so as to adjust the height of the support rod 204 above the fixed plate 101, so that the support rod 204 can support the inner sides of the gears to be processed at different heights, so that the gears to be processed of different sizes can remain stable during the processing, so as to improve the efficiency of gear processing. This embodiment specifically solves the problem that gears of different sizes in the prior art cannot remain stable during the processing, which makes the gears prone to offset and movement, affecting the safety of the processing process.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gear hobbing machine fixture, comprising a fixing mechanism (1), characterized in that: Also includes: A supporting mechanism (2) is arranged at the bottom of the fixing mechanism (1) and is used to support and fix the gears used for gear hobbing; The fixing mechanism (1) comprises a fixing plate (101), connecting bolts (103) are arranged between the fixing plate (101) and the mounting position of the gear hobbing machine, electric cylinders (105) are fixedly mounted around the bottom of the fixing plate (101), and mounting frames (106) are fixedly mounted at the output ends of the four electric cylinders (105); The support mechanism (2) comprises four adjusting screw rods (201) and a servo motor (205). The four adjusting screw rods (201) are respectively arranged on the inner walls around the mounting frame (106). A driven gear (202) is fixedly sleeved on the outer side of one end of the adjusting screw rod (201). A support rod (204) is arranged on the outer side of the adjusting screw rod (201). The servo motor (205) is fixedly installed at the middle position of the bottom of the mounting frame (106). A driving gear ring (206) is fixedly installed on the output end of the servo motor (205). The driving gear ring (206) is meshed with the four driven gears (202).

2. A gear hobbing machine fixing fixture according to claim 1, characterized in that: The fixing mechanism (1) comprises a fixing seat (102), six fixing seats (102) are provided, and the six fixing seats (102) are fixedly installed in an annular manner with equal spacing on the outside of the fixing plate (101), and the inner wall of the fixing seat (102) is threadedly connected to the outer wall of the adjacent connecting bolt (103).

3. A gear hobbing machine fixing fixture according to claim 1, characterized in that: The inner wall of the fixing plate (101) is provided with four limiting grooves (104), the four limiting grooves (104) are arranged in a ring shape with equal spacing, and the inner wall of the limiting groove (104) is movably connected to the outer wall of the support rod (204).

4. A gear hobbing machine fixing fixture according to claim 3, characterized in that: The inner walls around the mounting frame (106) are all provided with mounting grooves (107), the mounting grooves (107) are arranged directly below the limiting groove (104), and the inner walls of the mounting grooves (107) are rotatably connected to the adjacent adjusting screw rod (201).

5. A gear hobbing machine fixing fixture according to claim 4, characterized in that: A slider (203) is fixedly mounted at the bottom of the support rod (204); the inner wall of the slider (203) is threadedly connected to the outer wall of the adjacent adjusting screw rod (201); and the outer wall of the slider (203) is movably connected to the inner wall of the adjacent mounting groove (107).

6. The gear hobbing machine fixing fixture according to claim 1, characterized in that: The fixing mechanism (1) comprises a limiting plate (108), wherein four limiting plates (108) are provided, and the four limiting plates (108) are respectively fixedly mounted on the outer sides of the four sides of the mounting frame (106), and the inner sides of the limiting plates (108) are movably connected to the outer wall of the active gear ring (206).

7. The gear hobbing machine fixing fixture according to claim 1, characterized in that: The cross-section of the mounting frame (106) when viewed from above is arranged as a cross-shaped structure, and the cross-section of the support rod (204) when viewed from above is arranged as a quarter of a circular structure.

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