Gear hobbing machine chuck

Abstract

The utility model relates to the technical field of chucks, and provides a gear hobbing machine chuck which comprises a main frame body and a chuck seat, the chuck seat is fixed at one end of the main frame body, a chuck transmission assembly is arranged in the chuck seat and comprises a plurality of rectangular openings, the rectangular openings are formed in the surface of the chuck seat, a pair of round rods are arranged in the rectangular openings, and the round rods are arranged in the rectangular openings. The outer portion of the round rod is slidably connected with a moving frame in a sleeved mode, the outer portion of the round rod is connected with a spring in a sleeved mode, a transmission block is arranged on the lower end face of the moving frame, the outer surface of the transmission block is an arc-shaped structural face with an inclined angle, a fastening screw is rotatably connected to the bottom face of the chuck base, a plurality of round grooves are formed in the bottom face of the chuck base, and connecting rods are movably connected into the round grooves in a sleeved mode. By means of the technical scheme, the problems that in the prior art, when an existing chuck clamps materials for a long time, the clamping blocks of the chuck are prone to being greatly abraded, and replacement is troublesome due to the fact that the clamping blocks are inconvenient to disassemble are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chucks, and in particular to a chuck of a gear hobbing machine. Background Art

[0002] Gear hobbing machine is the most widely used type of gear processing machine tool. It can cut spur and helical cylindrical gears, and can also process worm wheels, sprockets, etc. It uses hobs to process spur, helical and herringbone cylindrical gears and worm wheels according to 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] When the gear hobbing machine processes the material, the material is clamped and limited by the chuck. However, the existing chuck is prone to cause the chuck block to be greatly worn after clamping the material for a long time, and the replacement of the chuck block is troublesome because it is inconvenient to remove the block.

[0004] Therefore, improvements are made to address the above issues. Utility Model Content

[0005] The utility model provides a gear hobbing machine chuck, which solves the problem that the existing chuck in the related art is easy to cause greater wear of the chuck block when clamping materials for a long time, and the replacement is troublesome due to the inconvenient removal of the chuck block.

[0006] The technical solution of the utility model is as follows:

[0007] A main frame and a chuck seat, wherein the chuck seat is fixed to one end of the main frame;

[0008] A chuck transmission assembly is arranged in the chuck seat, and the chuck transmission assembly includes a plurality of rectangular openings, which are opened on the surface of the chuck seat, and a pair of round rods are arranged in the rectangular openings, and the outer sliding sleeves of the round rods are connected to a moving frame, and the outer sleeves of the round rods are connected to a spring.

[0009] As a further technical solution, a transmission block is provided on the lower end face of the movable frame, the outer surface of the transmission block is an arc-shaped structural surface with an inclined angle, the bottom surface of the chuck seat is rotatably connected with a fastening screw, the bottom surface of the chuck seat is provided with a plurality of circular grooves, and a connecting rod is connected to a movable sleeve in the circular groove.

[0010] As a further technical solution, the lower end of the connecting rod is fixedly connected to a pushing sleeve, the inner surface of the pushing sleeve is slidably fitted with the outer surface of the transmission block, the bottom of the pushing sleeve is fixedly connected to a connecting frame, and the connecting frame is connected to the fastening screw through threaded cooperation.

[0011] As a further technical solution, it also includes an anti-wear component, which includes a plurality of fixed claws, the fixed claws are fixed to the upper end of the movable frame, a docking groove is provided on the surface of the fixed claw, a connecting groove is provided on the top of the fixed claw, the connecting groove is connected to the docking groove, and a bonding frame is inserted and connected in the docking groove.

[0012] As a further technical solution, the top of the laminating frame is inserted and connected in the connecting groove, and a fixing bolt is installed on the top of the laminating frame, and the fixing bolt is screwed and connected to the connecting groove through a thread.

[0013] As a further technical solution, the inner surface structure of the pushing sleeve matches the outer surface structure of the transmission block.

[0014] As a further technical solution, the upper end surface of the fixing bolt is flush with the top surface of the bonding frame, and the fixing bolt is positioned as a concave hexagonal structure.

[0015] As a further technical solution, the surface of the laminating frame is provided with a plurality of evenly arranged anti-slip convex layers.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a chuck transmission assembly. Through the interaction of the rectangular opening, round rod, mobile frame, spring, transmission block, fastening screw and pushing sleeve frame, the sleeve frame can be driven to move linearly through a single fastening screw, and the three mobile frames can be directly pushed to move synchronously and at the same distance at the same time. The workpiece can be firmly clamped and kept at the axis center, and it has a good stability effect and practicality.

[0018] 2. The utility model is provided with an anti-wear component. Through the interaction of structures such as the fixed claw, the docking groove, the bonding frame and the anti-slip convex layer, a detachable bonding frame can be installed on the surface of the fixed claw, and an anti-slip convex layer is provided on the surface of the bonding frame, which can achieve anti-slip and anti-wear effects. The bonding frame can be quickly assembled and replaced after wear, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

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

[0021] Figure 2 This is the axonometric drawing of the utility model;

[0022] Figure 3 This is an axonometric drawing from another perspective of the utility model;

[0023] Figure 4 This is an axonometric sectional view of the utility model;

[0024] Figure 5 For the utility model Figure 4 A partial enlarged view of part A;

[0025] In the figure: 1. main frame; 2. chuck seat; 3. chuck transmission assembly; 3-1. rectangular opening; 3-2. round rod; 3-3. movable frame; 3-4. spring; 3-5. transmission block; 3-6. fastening screw; 3-7. round groove; 3-8. connecting rod; 3-9. pushing sleeve; 3-10. connecting frame; 4. anti-wear assembly; 4-1. fixing claw; 4-2. docking groove; 4-3. connecting groove; 4-4. fitting frame; 4-5. fixing bolt; 5. anti-slip convex layer. DETAILED DESCRIPTION

[0026] The following will be combined with 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 of 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.

[0027] like Figure 1~Figure 5 As shown, this embodiment provides a gear hobbing machine chuck, comprising

[0028] A main frame 1 and a chuck seat 2, wherein the chuck seat 2 is fixed at one end of the main frame 1;

[0029] The chuck transmission assembly 3 is arranged in the chuck seat 2, and the chuck transmission assembly 3 includes a plurality of rectangular openings 3-1, and the rectangular openings 3-1 are opened on the surface of the chuck seat 2. A pair of round rods 3-2 are arranged in the rectangular openings 3-1, and the outer sliding sleeve of the round rod 3-2 is connected to the moving frame 3-3, and the outer sleeve of the round rod 3-2 is connected to the spring 3-4. The lower end surface of the moving frame 3-3 is provided with a transmission block 3-5, and the outer surface of the transmission block 3-5 is an arc-shaped structural surface with an inclined angle. The bottom surface of the chuck seat 2 is rotatably connected with a fastening screw 3-6, and the bottom surface of the chuck seat 2 is opened with a plurality of circular grooves 3-7, and the circular grooves 3-7 are movably connected with a connecting rod 3-8, and the lower end of the connecting rod 3-8 is fixedly connected with a pushing sleeve 3-9, and the inner surface of the pushing sleeve 3-9 is slidably fitted with the outer surface of the transmission block 3-5, and the bottom of the pushing sleeve 3-9 is fixedly connected with a connecting frame 3-10, and the connecting frame 3-10 is connected to the fastening screw 3-6 by threaded matching.

[0030] The chuck transmission assembly 3 is designed to achieve the effect of synchronous movement and clamping the workpiece. A rectangular opening 3-1 is provided on the surface of the chuck seat 2. Two round rods 3-2 are arranged in the rectangular opening 3-1. The outer sliding sleeve of the round rod 3-2 is connected to the moving frame 3-3, and a spring 3-4 is arranged on the outside of the round rod 3-2. A transmission block 3-5 is arranged at the bottom of the moving frame 3-3. A fastening screw 3-6 is rotatably connected to the center of the bottom of the chuck. The outside of the fastening screw 3-6 is connected to the connecting frame 3-10 through threaded cooperation. A pushing sleeve 3-9 is arranged on the upper end of the connecting frame 3-10. The pushing sleeve 3-9 is sleeved on the outside of the transmission block 3-5. The pushing sleeve 3-9 can be moved by the rotation drive of the fastening screw 3-6. The transmission block 3-5 can be pushed through the internal structural surface to tighten the moving frame 3-3, and then open again with the elastic force of the spring 3-4, so that the workpiece can be firmly clamped.

[0031] Furthermore, it also includes an anti-wear component 4, which includes a plurality of fixed claws 4-1. The fixed claws 4-1 are fixed on the upper end of the movable frame 3-3. A docking groove 4-2 is provided on the surface of the fixed claw 4-1. A connecting groove 4-3 is provided on the top of the fixed claw 4-1. The connecting groove 4-3 is communicated with the docking groove 4-2. A fitting frame 4-4 is inserted and connected in the docking groove 4-2. The top of the fitting frame 4-4 is inserted and connected in the connecting groove 4-3. A fixing bolt 4-5 is installed on the top of the fitting frame 4-4. The fixing bolt 4-5 is screwed and connected to the connecting groove 4-3 through a thread.

[0032] In this embodiment, in order to achieve wear protection for the fixed claw 4-1, an anti-wear component 4 is designed. A fixed claw 4-1 is arranged on the top of the movable frame 3-3. The fixed claw 4-1 is used to clamp the workpiece. A docking groove 4-2 is provided on the surface of the fixed claw 4-1, and a connecting groove 4-3 is provided on the top. The connecting groove 4-3 is connected to the docking groove 4-2. A bonding frame 4-4 is inserted in the docking groove 4-2 and inserted in the connecting groove 4-3 at the same time. A fixing bolt 4-5 is installed on the top of the bonding frame 4-4, which is fixed by screwing it with the connecting groove 4-3 through a fixing screw. The bonding frame 4-4 contacts the surface of the workpiece. After wear, the bonding frame 4-4 can be directly replaced, and the loading and unloading method is simple and convenient.

[0033] Furthermore, the inner surface structure of the push sleeve 3-9 matches the outer surface structure of the transmission block 3-5.

[0034] In this embodiment, the same inclined arc surface can maintain sliding fit and smoothly move on the surface of the transmission block 3-5 to achieve a pushing and clamping effect.

[0035] Furthermore, the upper end surface of the fixing bolt 4-5 is flush with the top surface of the bonding frame 4-4, and the fixing bolt 4-5 is positioned as a concave hexagonal structure.

[0036] In this embodiment, the integrity of the overall structure is improved by having the same plane height, and the concave hexagonal structure facilitates loading and unloading.

[0037] Furthermore, a plurality of evenly arranged anti-skid convex layers 5 are provided on the surface of the laminating frame 4 - 4 .

[0038] In this embodiment, the anti-slip convex layer 5 is provided to enhance the fastening effect while reducing a certain amount of wear life loss.

[0039] When it is needed, the main frame 1 is installed on the main shaft, and the main shaft drives the main frame 1 to rotate, and the chuck seat 2 is fixed on the main frame 1. When fixing the workpiece, the workpiece is placed in the multiple fixed claws 4-1, and then the fastening screw 3-6 is screwed, and the connecting frame 3-10 is driven to move through the thread, so that the pushing sleeve 3-9 moves upward, and the transmission block 3-5 is pushed during the movement to make the inclination angle of the surface so that the multiple fixed claws 4-1 shrink toward the center until they are clamped on the workpiece surface. When clamping, the anti-slip convex layer 5 on the surface of the bonding frame 4-4 will contact the surface of the workpiece, and it can be rotated after fixed clamping. When the anti-slip convex layer 5 on the surface of the bonding frame 4-4 is too worn, it needs to be replaced. When replacing, the fixing bolt 4-5 is screwed and removed with a hexagonal wrench, and then the bonding frame 4-4 is pulled out and replaced with a new one.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear hobbing machine chuck, characterized in that: include A main frame (1) and a chuck seat (2), wherein the chuck seat (2) is fixed to one end of the main frame (1); A chuck transmission assembly (3), the chuck transmission assembly (3) being arranged in the chuck seat (2), the chuck transmission assembly (3) comprising a plurality of rectangular openings (3-1), the rectangular openings (3-1) being opened on the surface of the chuck seat (2), a pair of round rods (3-2) being arranged in the rectangular openings (3-1), the outer portions of the round rods (3-2) being slidably sleevedly connected to a moving frame (3-3), and the outer portions of the round rods (3-2) being sleevedly connected to a spring (3-4).

2. A gear hobbing machine chuck according to claim 1, characterized in that: The lower end surface of the movable frame (3-3) is provided with a transmission block (3-5), the outer surface of the transmission block (3-5) is an arc-shaped structural surface with an inclined angle, the bottom surface of the chuck seat (2) is rotatably connected with a fastening screw (3-6), the bottom surface of the chuck seat (2) is provided with a plurality of circular grooves (3-7), and the circular grooves (3-7) are movably sleeved with connecting rods (3-8).

3. A gear hobbing machine chuck according to claim 2, characterized in that: The lower end of the connecting rod (3-8) is fixedly connected to a pushing sleeve (3-9), the inner surface of the pushing sleeve (3-9) is slidably fitted with the outer surface of the transmission block (3-5), the bottom of the pushing sleeve (3-9) is fixedly connected to a connecting frame (3-10), and the connecting frame (3-10) is connected to the fastening screw (3-6) through threaded matching.

4. A gear hobbing machine chuck according to claim 1, characterized in that: The invention also comprises an anti-wear component (4), wherein the anti-wear component (4) comprises a plurality of fixed claws (4-1), wherein the fixed claws (4-1) are fixed to the upper end of the movable frame (3-3), wherein a docking groove (4-2) is provided on the surface of the fixed claws (4-1), wherein a connecting groove (4-3) is provided on the top of the fixed claws (4-1), wherein the connecting groove (4-3) is connected to the docking groove (4-2), and wherein a bonding frame (4-4) is inserted and connected in the docking groove (4-2).

5. A gear hobbing machine chuck according to claim 4, characterized in that: The top of the laminating frame (4-4) is inserted and connected in the connecting groove (4-3), and a fixing bolt (4-5) is installed on the top of the laminating frame (4-4), and the fixing bolt (4-5) is screwed and connected to the connecting groove (4-3) through a thread.

6. A gear hobbing machine chuck according to claim 3, characterized in that: The inner surface structure of the pushing sleeve (3-9) matches the outer surface structure of the transmission block (3-5).

7. A gear hobbing machine chuck according to claim 5, characterized in that: The upper end surface of the fixing bolt (4-5) is flush with the top surface of the laminating frame (4-4), and the fixing bolt (4-5) is positioned as a concave hexagonal structure.

8. A gear hobbing machine chuck according to claim 4, characterized in that: The surface of the laminating frame (4-4) is provided with a plurality of evenly arranged anti-slip convex layers (5).

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