Positioning tool for high-precision machine tool for gear production

Abstract

The positioning tool for the high-precision machine tool for gear production comprises a machine frame, a first opening is formed in the top face of the center position of the machine frame, a first hydraulic cylinder is fixedly installed at the bottom of the center position of the machine frame, the upper end of a piston rod of the first hydraulic cylinder is fixedly connected with a rectangular cover, and the rectangular cover vertically and movably penetrates through the first opening. The first hydraulic cylinder drives the rectangular cover to ascend, the servo motor drives the two first positioning seats to clamp and position the inner ring of the gear, the two second hydraulic cylinders drive the two second positioning seats to clamp and position the outer ring of the gear, the structure is simple, positioning is rapid, and the working efficiency is improved. The buffering abutting block is inserted into the rectangular open groove in the first positioning seat or the second positioning seat, so that the rectangular protrusion is inserted into the rectangular clamping groove, the buffering abutting block is effectively clamped and positioned, and therefore the buffering abutting block of the abrasion-resistant rubber product provides buffering protection for the positioning gear, and the gear is prevented from being damaged during polishing.

Description

Technical Field

[0001] This utility model relates to the field of gear manufacturing technology, and in particular to a positioning fixture for a high-precision machine tool used in gear manufacturing. Background Technology

[0002] High-precision machine tools are machine tools specifically designed for manufacturing high-precision, high-quality, and high-efficiency parts and complex-shaped components. The precision requirements of high-precision machine tools are extremely high, typically at the micron or even nanometer level. High-precision machine tools are widely used in many fields, including aerospace and precision instruments, such as thread grinders, worm grinders, and gear grinders.

[0003] Existing high-precision gear grinding machines are not convenient for quick gear positioning in actual use, and lack gear protection structures during positioning, which can easily damage the gears during polishing. A positioning fixture for high-precision machine tools used in gear production is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings and defects in the existing technology, this utility model proposes a positioning fixture for a high-precision machine tool for gear production, which solves the technical problem that existing high-precision gear grinding machines are not convenient for quick gear positioning in actual use, and lack gear protection structure during positioning, which easily damages the gears during polishing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A positioning fixture for a high-precision machine tool used in gear production includes a frame. A first opening is provided on the top surface at the center of the frame. A first hydraulic cylinder is fixedly installed on the bottom surface at the center of the frame. A rectangular cover is fixedly connected to the upper end of the piston rod of the first hydraulic cylinder. The rectangular cover is vertically movable through the first opening. A second opening is provided on the top surface of the rectangular cover. A horizontal adjustment mechanism is provided inside the rectangular cover. Two first positioning seats are provided on the horizontal adjustment mechanism and are disposed through the second opening. Second hydraulic cylinders are fixedly installed on the upper ends of both the left and right sides of the frame. Second positioning seats are fixedly connected to the opposite side walls of the piston rods of the two second hydraulic cylinders.

[0007] Preferably, the horizontal adjustment mechanism includes a servo motor fixedly installed on the right side wall near the lower end of the rectangular cover. The rectangular cover has connecting rods that are horizontally rotatable through the inner walls on both sides facing the servo motor. The two connecting rods are fixedly connected to the same bidirectional lead screw at one end inside the rectangular cover. Two adjusting blocks are threaded onto the bidirectional lead screw. The two first positioning seats are respectively fixedly connected to the upper ends of the two adjusting blocks.

[0008] Preferably, the connecting rod and the bidirectional lead screw are connected and fixed by a coupling.

[0009] Preferably, the same horizontal limiting rod is fixedly connected to the inner wall of the rectangular cover near the lower end, and the lower ends of the two adjusting blocks are fixedly connected to limiting blocks. The horizontal limiting rod is set horizontally through the two limiting blocks.

[0010] Preferably, rectangular slots are provided on the opposite sidewalls of the two first positioning seats near the upper end and on the opposite sidewalls of the two second positioning seats near the upper end. Buffer blocks are inserted into the rectangular slots. Two rectangular protrusions are provided on the inner wall of the rectangular slots opposite the buffer blocks. Two rectangular slots are provided on the sidewalls of the buffer blocks located in the rectangular slots. Two rectangular protrusions on the same side are respectively inserted into the two rectangular slots.

[0011] Preferably, the buffer block is made of wear-resistant rubber.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The rectangular cover is raised by the first hydraulic cylinder, which causes the servo motor to drive the two first positioning seats to clamp and position the inner ring of the gear. The two second hydraulic cylinders drive the two second positioning seats to clamp and position the outer ring of the gear. The structure is simple and the positioning is fast.

[0014] 2. By inserting the buffer block into the rectangular slot on the first or second positioning seat, the rectangular protrusion is inserted into the rectangular slot, effectively locking and positioning the buffer block. This allows the wear-resistant rubber product's buffer block to provide buffer protection for the positioning gear, preventing damage to the gear during polishing. Attached Figure Description

[0015] Figure 1 This is a perspective view of a positioning fixture for a high-precision machine tool used in gear production, as proposed in this utility model.

[0016] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0017] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the first positioning seat and the buffer block of a positioning fixture for a high-precision machine tool used in gear production, as proposed in this utility model.

[0019] In the figure: 1 frame, 2 first opening, 3 first hydraulic cylinder, 4 rectangular cover, 5 second opening, 6 first positioning seat, 7 second hydraulic cylinder, 8 second positioning seat, 9 servo motor, 10 connecting rod, 11 double-acting screw, 12 adjusting block, 13 coupling, 14 horizontal limit rod, 15 limit block, 16 rectangular slot, 17 buffer block, 18 rectangular protrusion, 19 rectangular slot. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4A positioning fixture for a high-precision machine tool used in gear production includes a frame 1. A first opening 2 is provided on the top surface at the center of the frame 1. A first hydraulic cylinder 3 is fixedly installed on the bottom surface at the center of the frame 1. A rectangular cover 4 is fixedly connected to the upper end of the piston rod of the first hydraulic cylinder 3. The first hydraulic cylinder 3 drives the rectangular cover 4 to rise and fall along the first opening 2, facilitating adjustment of the gear positioning height according to actual needs. The rectangular cover 4 is vertically movable through the first opening 2. A second opening 5 is provided on the top surface of the rectangular cover 4. A horizontal adjustment mechanism is provided inside the rectangular cover 4. Two first positioning seats 6 are provided on the horizontal adjustment mechanism, passing through the second opening 5. The horizontal adjustment mechanism includes a servo motor 9 fixedly installed on the right side wall near the lower end of the rectangular cover 4. Connecting rods 10 are horizontally rotatable and pass through the inner walls of the rectangular cover 4 on both sides facing the servo motor 9. One end of each connecting rod 10 inside the rectangular cover 4 is fixedly connected to the same bidirectional lead screw. 11. Two adjusting blocks 12 are threaded onto the bidirectional lead screw 11. Two first positioning seats 6 are fixedly connected to the upper ends of the two adjusting blocks 12 respectively. The servo motor 9, together with two connecting rods 10 and coupling 13, drives the bidirectional lead screw 11 to rotate. This rotation causes the two adjusting blocks 12 to move horizontally in opposite directions under the limiting action of the horizontal limiting rod 14 and the limiting block 15. The connecting rod 10 and the bidirectional lead screw 11 are connected and fixed by the coupling 13. The coupling 13 is used to connect and fix the connecting rod 10 and the bidirectional lead screw 11. The same horizontal limiting rod 14 is fixedly connected to the inner wall of the rectangular cover 4 near the lower end. The lower ends of the two adjusting blocks 12 are fixedly connected to the limiting blocks 15. The horizontal limiting rod 14 is set horizontally through the two limiting blocks 15. The horizontal limiting rod 14 and the limiting block 15 can prevent the bidirectional lead screw 11 from rotating and causing the adjusting blocks 12 to rotate at the same time, so that they can only move horizontally with the rotation of the bidirectional lead screw 11.

[0023] Second hydraulic cylinders 7 are fixedly installed on the upper ends of both sides of the frame 1. Second positioning seats 8 are fixedly connected to the opposite side walls of the piston rods of the two second hydraulic cylinders 7. Rectangular slots 16 are provided on the opposite side walls of the two first positioning seats 6 near the upper ends and on the opposite side walls of the two second positioning seats 8 near the upper ends. Buffer blocks 17 are inserted into the rectangular slots 16. Two rectangular protrusions 18 are provided on the inner walls of the rectangular slots 16 facing the buffer blocks 17. Two rectangular slots 19 are provided on the side walls of the buffer blocks 17 located in the rectangular slots 16. Several buffer blocks 17 are respectively inserted into the rectangular slots 16 on the two first positioning seats 6 and the two second positioning seats 8, and the two rectangular protrusions 18 in the rectangular slots 16 are respectively inserted into the rectangular slots 19 on the buffer blocks 17, effectively locking and positioning the buffer blocks 17 in the rectangular slots 16. The two rectangular protrusions 18 on the same side are respectively inserted into the two rectangular slots 19. The buffer blocks 17 are made of wear-resistant rubber products. The wear-resistant rubber buffer blocks 17 can provide buffer protection for the positioning gear and prevent damage to the gear during polishing.

[0024] In use, this utility model involves inserting several buffer blocks 17 into rectangular slots 16 on two first positioning seats 6 and two second positioning seats 8, respectively. Two rectangular protrusions 18 within the rectangular slots 16 are then inserted into rectangular grooves 19 on the buffer blocks 17, effectively securing and positioning the buffer blocks 17 within the rectangular slots 16. When machining the upper end or inner ring of the gear is required, simply activate the two second hydraulic cylinders 7 to drive the two second positioning seats 8 to clamp and position the outer ring of the gear in conjunction with the buffer blocks 17. When machining the outer ring of the gear is required, activate the first... A hydraulic cylinder 3 drives a rectangular cover 4 to rise vertically along the first opening 2, inserting the gear between two first positioning seats 6. The servo motor 9 is started, cooperating with two connecting rods 10 and coupling 13 to drive the bidirectional lead screw 11 to rotate. The rotation of the bidirectional lead screw 11 causes two adjusting blocks 12 to move horizontally in opposite directions under the limiting action of the horizontal limiting rod 14 and the limiting block 15. The two adjusting blocks 12 also cause the two first positioning seats 6 to move horizontally in opposite directions until the buffer blocks 17 on the two first positioning seats 6 abut and press against the inner ring of the gear, effectively positioning the gear. The structure is simple and the positioning is fast.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning tool for high-precision machine tools for gear production, comprising a machine frame (1), characterized in that, The first opening (2) is arranged on the top surface of the center position of the rack (1), the first hydraulic cylinder (3) is fixedly installed on the bottom of the center position of the rack (1), the upper end of the piston rod of the first hydraulic cylinder (3) is fixedly connected with the rectangular cover (4), the rectangular cover (4) is vertically movably arranged through the first opening (2), the second opening (5) is arranged on the top surface of the rectangular cover (4), the horizontal adjusting mechanism is arranged in the rectangular cover (4), the two first positioning seats (6) are arranged through the second opening (5), the second hydraulic cylinders (7) are fixedly installed on the upper ends of the left and right sides of the rack (1), and the second positioning seats (8) are fixedly connected to the opposite side walls of the piston rods of the two second hydraulic cylinders (7).

2. The positioning tool for high-precision machine tools for gear production according to claim 1, characterized in that, The horizontal adjusting mechanism comprises the servo motor (9) fixedly installed on the right side wall close to the lower end of the rectangular cover (4), the connecting rods (10) are horizontally movably arranged through the left and right inner walls of the rectangular cover (4) opposite the servo motor (9), one end of the two connecting rods (10) in the rectangular cover (4) is fixedly connected with the same bidirectional screw rod (11), the bidirectional screw rod (11) is threadedly sleeved with the two adjusting blocks (12), and the two first positioning seats (6) are fixedly connected to the upper ends of the two adjusting blocks (12).

3. The positioning tool for high-precision machine tools for gear production according to claim 2, characterized in that, The connecting rods (10) and the bidirectional screw rod (11) are connected and fixed through the shaft couplings (13).

4. The positioning tool for high-precision machine tools for gear production according to claim 2, characterized in that, The same horizontal limiting rod (14) is fixedly connected to the opposite inner walls close to the lower end of the rectangular cover (4), the lower ends of the two adjusting blocks (12) are fixedly connected with the limiting blocks (15), and the horizontal limiting rod (14) is movably arranged through the two limiting blocks (15).

5. The positioning tool for high-precision machine tools for gear production according to claim 1, characterized in that, The opposite side walls close to the upper ends of the two first positioning seats (6) and the opposite side walls close to the upper ends of the two second positioning seats (8) are provided with the rectangular grooves (16), the buffer blocks (17) are inserted into the rectangular grooves (16), the inner walls of the rectangular grooves (16) opposite the buffer blocks (17) are provided with the two rectangular protrusions (18), the side walls of the rectangular grooves (16) where the buffer blocks (17) are located are provided with the two rectangular clamping grooves (19), and the two rectangular protrusions (18) on the same side are respectively inserted into the two rectangular clamping grooves (19).

6. The positioning tool for high-precision machine tools for gear production according to claim 5, characterized in that, The buffer blocks (17) are wear-resistant rubber products.

Images