Machine tool special for worm machining

Abstract

The utility model provides a special machine tool for worm machining, and relates to the field of worm machining equipment, the special machine tool for worm machining comprises a machine tool body used for machining a worm, the machine tool body is internally provided with a four-jaw chuck used for fixing the worm, an extrusion assembly and relieving equipment, and when the worm is clamped, the extrusion assembly and the relieving equipment are arranged on the machine tool body. The outer side walls of the worms extrude telescopic columns on the inner side walls of the four clamping jaws, so that the telescopic columns move towards the interiors of storage holes formed in the inner side walls of the clamping jaws, elastic pieces are extruded when the telescopic columns move towards the interiors of the storage holes, and the pressure between the telescopic columns and the worms is increased through the elasticity of the elastic pieces; according to the four-jaw chuck, the telescopic column is arranged on the outer side wall of the worm, so that the telescopic column can be better attached to the outer side wall of the worm, the friction force between the telescopic column and the outer side wall of the worm is increased through the multiple protruding blocks arranged at one end of the telescopic column, the worm is limited more stably through the four-jaw chuck, and the clamping effect of the four-jaw chuck and the machining efficiency of the worm are improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the field of worm processing equipment, in particular to a special machine tool for worm processing. Background Art

[0002] A worm is a gear with one or more spiral teeth that meshes with a worm wheel to form a staggered axis gear pair. Its pitch surface can be a cylindrical surface, a conical surface or a torus surface. There are four types: Archimedean worm, involute worm, normal straight worm, and conical envelope cylindrical worm. Machine tools refer to machines for manufacturing machines and machinery. Because the worm is a high-precision and high-efficiency mechanical part, professional processing machine tools are required for processing. Currently, worm processing machine tools are usually composed of tooth-removing equipment, fixtures and frames.

[0003] Before processing the worm, it is necessary to fix the worm by a fixing device arranged inside the machine tool. The existing fixing device is generally composed of a four-jaw chuck and an extrusion column. The four-jaw chuck is composed of four claws, each claw has a gear, and these gears are synchronized. They are connected together through a central axis. When the central axis rotates, all the gears will rotate at the same time, so that the four claws will shrink inward, so as to fix one end of the worm, and then the extrusion column will squeeze the other end of the worm to limit the worm. Because the clamping surfaces of the four claws of the four-jaw chuck are smooth, when fixing one end of the worm, because the clamping surfaces of the four claws are smooth, the friction between the clamping surface and the worm will be reduced, resulting in insufficient clamping force, affecting the clamping effect of the four-jaw chuck and the processing efficiency of the worm.

[0004] Therefore, it is necessary to provide a new special machine tool for worm processing to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a special machine tool for worm processing.

[0006] The special machine tool for worm processing provided by the utility model comprises a machine tool body for processing the worm, wherein a four-jaw chuck, an extrusion assembly and a tooth-removing device for fixing the worm are arranged inside the machine tool body;

[0007] The four-jaw chuck comprises a mounting plate, four clamping jaws and a plurality of telescopic columns, a mounting groove is provided on the surface of the machine tool body, one side of the mounting plate is fixedly connected to a side of an inner wall of the mounting groove, and a side of the mounting plate away from the mounting groove is provided with four slide grooves at equal intervals in the circumferential direction, the four clamping jaws are respectively located in the four slide grooves opened on one side of the mounting plate, and the four clamping jaws can slide in the four slide grooves, the inner side walls of the four clamping jaws are respectively provided with a plurality of storage holes matching the telescopic columns, one ends of the plurality of telescopic columns are respectively located in the plurality of storage holes set on the inner side walls of the four clamping jaws, and the telescopic columns can slide in the storage holes, an end of the telescopic column located in the storage hole is fixedly provided with an elastic piece, an end of the elastic piece away from the telescopic column is fixedly connected to a side of the inner wall of the storage hole, and an end of the telescopic column away from the elastic piece is provided with a plurality of protrusions that increase friction.

[0008] Preferably, the extrusion assembly includes a fixing ring, an extrusion column and a driving member, one side of the fixing ring is fixedly connected to a side of the inner wall of the mounting groove away from the mounting plate, the surface of the fixing ring is provided with a through hole matching the extrusion column, one end of the extrusion column passes through the through hole and one side of the inner wall of the machine tool body, the extrusion column is movably connected to the fixing ring and one side of the inner wall of the machine tool body, the driving member is located inside the machine tool body, one end of the driving member is fixedly connected to one side of the inner wall of the machine tool body, the output end of the driving member is fixedly connected to one end of the extrusion column passing through the machine tool body, and the end of the extrusion column away from the driving member is conically arranged.

[0009] Preferably, the elastic member is a spring, one end of the spring is fixedly connected to one end of the telescopic column away from the protruding block, and one end of the spring away from the telescopic column is fixedly connected to one side of the inner wall of the storage hole.

[0010] Preferably, the driving member is an electric telescopic rod, which is located inside the machine tool body, one end of the electric telescopic rod is fixedly connected to one side of the inner wall of the machine tool body, and the output end of the electric telescopic rod is fixedly connected to one end of the extrusion column that passes through the machine tool body.

[0011] Preferably, a storage assembly is provided on one side of the machine tool body, and the storage assembly includes a fixed rod and a movable block. A movable groove is provided on one side of the machine tool body, and both ends of the fixed rod are respectively fixedly connected to the two sides of the inner wall of the movable groove. A through hole matching the fixed rod is opened on the surface of the movable block, and the inner side wall of the through hole opened on the surface of the movable block is in contact with the outer side wall of the fixed rod, and the movable block is movably connected to the fixed rod.

[0012] Preferably, a storage box for storing tools is provided on the top of the movable block.

[0013] Compared with the related art, the special machine tool for worm processing provided by the utility model has the following beneficial effects:

[0014] When using a four-jaw chuck to clamp the worm, the outer wall of the worm will squeeze the telescopic column on the inner walls of the four jaws, thereby causing the telescopic column to move toward the receiving hole opened in the inner wall of the jaws. When the telescopic column moves toward the receiving hole, it will squeeze the elastic part, and the elastic force of the elastic part will increase the pressure between the telescopic column and the worm, so that the telescopic column can better fit with the outer wall of the worm. When the telescopic column fits with the outer wall of the worm, the friction between the telescopic column and the outer wall of the worm is increased by multiple raised blocks set at one end of the telescopic column, thereby making the four-jaw chuck more stable when limiting the worm, thereby improving the clamping effect of the four-jaw chuck and the processing efficiency of the worm to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural diagram of the special machine tool for worm processing provided by the utility model;

[0016] Figure 2 for Figure 1 The overall structural diagram of the four-jaw chuck shown;

[0017] Figure 3 for Figure 2 The overall structural diagram of the clamping jaws shown;

[0018] Figure 4 for Figure 3 The structural schematic diagram of the telescopic column shown;

[0019] Figure 5 A schematic diagram of the cross-section of a special machine tool for worm processing provided by the utility model;

[0020] Figure 6 for Figure 5 A schematic diagram of the exploded structure of the storage assembly is shown.

[0021] Numbers in the figure: 1. Machine tool body; 2. Four-jaw chuck; 3. Mounting plate; 4. Clamping jaws; 5. Telescopic column; 6. Spring; 7. Raised block; 8. Fixed ring; 9. Extrusion column; 10. Electric telescopic rod; 11. Storage assembly; 12. Fixed rod; 13. Movable block; 14. Storage box; 15. Shovel gear equipment. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 ,in, Figure 1The overall structural diagram of the special machine tool for worm processing provided by the utility model; Figure 2 for Figure 1 The overall structural diagram of the four-jaw chuck shown; Figure 3 for Figure 2 The overall structural diagram of the clamping jaws shown; Figure 4 for Figure 3 The structural schematic diagram of the telescopic column shown; Figure 5 A schematic diagram of the cross-section of a special machine tool for worm processing provided by the utility model; Figure 6 for Figure 5 A schematic diagram of the exploded structure of the storage assembly is shown.

[0024] In the specific implementation process, Figure 1-Figure 6 As shown, a special machine tool for worm processing includes a machine tool body 1 for processing the worm, a four-jaw chuck 2 for fixing the worm, an extrusion assembly and a tooth-scraping device 15 are arranged inside the machine tool body 1, the four-jaw chuck 2 includes a mounting plate 3, four clamping jaws 4 and a plurality of telescopic columns 5, a mounting groove is arranged on the surface of the machine tool body 1, one side of the mounting plate 3 is fixedly connected to one side of the inner wall of the mounting groove, and four slide grooves are arranged at equal intervals in the circumferential direction on one side of the mounting plate 3 away from the mounting groove, and the four clamping jaws 4 are respectively opened on one side of the mounting plate 3 The four jaws 4 are inside the four slide grooves, and the four clamping jaws 4 can slide inside the four slide grooves, the inner side walls of the four clamping jaws 4 are respectively provided with a plurality of storage holes matching the telescopic column 5, one end of the plurality of telescopic columns 5 is respectively located inside the plurality of storage holes provided on the inner side walls of the four clamping jaws 4, and the telescopic column 5 can slide inside the storage holes, an elastic member is fixedly provided at one end of the telescopic column 5 located inside the storage hole, an end of the elastic member away from the telescopic column 5 is fixedly connected to one side of the inner wall of the storage hole, and a plurality of protrusions 7 for increasing friction are provided at one end of the telescopic column 5 away from the elastic member;

[0025] The extrusion assembly includes a fixed ring 8, an extrusion column 9 and a driving member. One side of the fixed ring 8 is fixedly connected to the side of the inner wall of the mounting groove away from the mounting plate 3. A through hole matching the extrusion column 9 is provided on the surface of the fixed ring 8. One end of the extrusion column 9 passes through the through hole and one side of the inner wall of the machine tool body 1. The extrusion column 9 is movably connected to the fixed ring 8 and one side of the inner wall of the machine tool body 1. The driving member is located inside the machine tool body 1. One end of the driving member is fixedly connected to one side of the inner wall of the machine tool body 1. The output end of the driving member is fixedly connected to one end of the extrusion column 9 passing through the machine tool body 1. The end of the extrusion column 9 away from the driving member is conical.

[0026] The elastic member is a spring 6, one end of the spring 6 is fixedly connected to the end of the telescopic column 5 away from the protruding block 7, the end of the spring 6 away from the telescopic column 5 is fixedly connected to one side of the inner wall of the storage hole, the driving member is an electric telescopic rod 10, the electric telescopic rod 10 is located inside the machine tool body 1, one end of the electric telescopic rod 10 is fixedly connected to one side of the inner wall of the machine tool body 1, the output end of the electric telescopic rod 10 is fixedly connected to one end of the extrusion column 9 that passes through the machine tool body 1, a storage assembly 11 is provided on one side of the machine tool body 1, the storage assembly 11 includes a fixed rod 12 and a movable block 13, and a movable groove is provided on one side of the machine tool body 1, fixed The two ends of the rod 12 are respectively fixedly connected to the two sides of the inner wall of the movable groove, and a through hole matching the fixed rod 12 is opened on the surface of the movable block 13, and the inner wall of the through hole opened on the surface of the movable block 13 is fitted with the outer wall of the fixed rod 12. The movable block 13 is movably connected to the fixed rod 12, and a storage box 14 for storing tools is provided on the top of the movable block 13. By moving the storage box 14, the storage box 14 drives the movable block 13 at the bottom to move on the surface of the fixed rod 12, so that the storage box 14 can be moved to different positions on one side of the machine tool, so that the staff can conveniently take the tools inside the storage box 14.

[0027] The working principle of the utility model is as follows: when the worm needs to be fixed, one end of the worm is placed between the four clamping jaws 4, and the one end of the worm is limited by the four clamping jaws 4. When the four clamping jaws 4 move toward the worm, the outer wall of the worm will squeeze the telescopic column 5 on the inner wall of the four clamping jaws 4, so that the telescopic column 5 moves into the receiving hole opened in the inner wall of the clamping jaw 4. When the telescopic column 5 moves into the receiving hole, it squeezes the spring 6, and the elastic force of the spring 6 increases the pressure between the telescopic column 5 and the worm, so that the telescopic column 5 moves into the receiving hole. The column 5 can better fit with the outer wall of the worm. When the telescopic column 5 fits with the outer wall of the worm, the friction between the telescopic column 5 and the outer wall of the worm is increased by a plurality of raised blocks 7 arranged at one end of the telescopic column 5, so that the four-jaw chuck 2 is more stable when limiting the worm. When one end of the worm is fixed, the electric telescopic rod 10 is started so that the output end of the electric telescopic rod 10 drives the extrusion column 9 to move toward the worm, so that the conical end of the extrusion column 9 fits with the end of the worm away from the clamping jaw 4, thereby fixing the worm.

[0028] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A special machine tool for worm processing, comprising a machine tool body (1) for processing the worm, It is characterized in that The machine tool body (1) is provided with a four-jaw chuck (2) for fixing the worm, an extrusion assembly and a tooth-removing device (15); The four-jaw chuck (2) comprises a mounting plate (3), four clamping jaws (4) and a plurality of telescopic columns (5). A mounting groove is provided on the surface of the machine tool body (1). One side of the mounting plate (3) is fixedly connected to one side of the inner wall of the mounting groove. Four sliding grooves are circumferentially and evenly spaced on the side of the mounting plate (3) away from the mounting groove. The four clamping jaws (4) are respectively located in the four sliding grooves opened on one side of the mounting plate (3), and the four clamping jaws (4) can slide in the four sliding grooves. The inner side walls of the four clamping jaws (4) are respectively provided with a plurality of receiving holes matching the telescopic columns (5). One end of the plurality of telescopic columns (5) is respectively located in the plurality of receiving holes set on the inner side walls of the four clamping jaws (4), and the telescopic columns (5) can slide in the receiving holes. An elastic member is fixedly provided at one end of the telescopic column (5) located in the receiving hole. The end of the elastic member away from the telescopic column (5) is fixedly connected to one side of the inner wall of the receiving hole. A plurality of protrusions (7) for increasing friction are provided at one end of the telescopic column (5) away from the elastic member.

2. The special machine tool for worm machining according to claim 1, It is characterized in that The extrusion assembly comprises a fixing ring (8), an extrusion column (9) and a driving member, one side of the fixing ring (8) is fixedly connected to the side of the inner wall of the mounting groove away from the mounting plate (3), a through hole matching the extrusion column (9) is provided on the surface of the fixing ring (8), one end of the extrusion column (9) passes through the through hole and one side of the inner wall of the machine tool body (1), the extrusion column (9) is movably connected to the fixing ring (8) and one side of the inner wall of the machine tool body (1), the driving member is located inside the machine tool body (1), one end of the driving member is fixedly connected to one side of the inner wall of the machine tool body (1), the output end of the driving member is fixedly connected to one end of the extrusion column (9) passing through the machine tool body (1), and the end of the extrusion column (9) away from the driving member is conically arranged.

3. The special machine tool for worm machining according to claim 1, It is characterized in that The elastic member is a spring (6), one end of the spring (6) is fixedly connected to the end of the telescopic column (5) away from the protruding block (7), and the end of the spring (6) away from the telescopic column (5) is fixedly connected to one side of the inner wall of the storage hole.

4. The special machine tool for worm machining according to claim 2, It is characterized in that The driving member is an electric telescopic rod (10), the electric telescopic rod (10) is located inside the machine tool body (1), one end of the electric telescopic rod (10) is fixedly connected to one side of the inner wall of the machine tool body (1), and the output end of the electric telescopic rod (10) is fixedly connected to one end of the extrusion column (9) that passes through the machine tool body (1).

5. The special machine tool for worm machining according to claim 4, It is characterized in that A storage assembly (11) is provided on one side of the machine tool body (1), and the storage assembly (11) comprises a fixed rod (12) and a movable block (13). A movable groove is provided on one side of the machine tool body (1), and two ends of the fixed rod (12) are respectively fixedly connected to two sides of the inner wall of the movable groove. A through hole matching the fixed rod (12) is provided on the surface of the movable block (13), and the inner side wall of the through hole provided on the surface of the movable block (13) is in contact with the outer side wall of the fixed rod (12), and the movable block (13) is movably connected to the fixed rod (12).

6. The special machine tool for worm machining according to claim 5, It is characterized in that A storage box (14) for storing tools is provided on the top of the movable block (13).

Images