Fastening device for machining worm thread groove

Abstract

The utility model discloses a fastening device for machining a worm thread groove. The fastening device comprises a workbench and two adjusting bases installed on the top of the workbench. An adjusting mechanism used for enabling the two adjusting seats to get close to each other or get away from each other is arranged in the workbench. Servo motors are rotationally mounted in the two adjusting seats; the adjacent ends of the two servo motors are each provided with a clamping mechanism used for fixing a worm. The clamping mechanism comprises a large disc, a small disc, connecting rods, a swing frame, a sliding block and a clamping seat, the large disc is fixedly installed on one side of the servo motor, the output end of the servo motor penetrates through one side of the large disc and is provided with the small disc, three connecting rods are fixedly installed on the surface of the small disc, and the swing frame is hinged to the ends, away from the small disc, of the three connecting rods; a sliding block is hinged to one end of the swing frame, and a clamping base used for abutting against the surface of the worm is fixedly installed on one side of the sliding block. According to the three-jaw type worm clamping device, a worm can be clamped in a three-jaw mode, clamping is firmer, and the servo motor is rotationally installed on the adjusting base, only rotating adjustment is conducted, and movement in the horizontal direction cannot be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of worm processing equipment, in particular to a fastening device for processing worm thread grooves. 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 indexing surface can be a cylindrical surface, a conical surface or a torus surface. There are four types of worms: Archimedean worms, involute worms, normal straight flank worms, and conical envelope cylindrical worms. In the prior art, the fixing effect of worms that require thread groove processing is often poor, and there is a lack of directional limit clamping effect. Fixing only on both sides is not strong enough.

[0003] For example, the authorized patent document with application number 202122549361.X discloses a fixing device for processing worm gears, comprising a base and a bracket arranged on the upper side of the base, a support plate arranged in the middle of the bracket, the support plate is connected to the bracket through an angle adjustment assembly, and a positioning and fixing assembly is arranged on the upper side of the support plate; the positioning and fixing assembly comprises a positioning platform, the positioning platform is arranged on the upper side of the support plate, a positioning rod is arranged in the middle of the side of the positioning platform, a first spring is arranged on the inner side surface of the first slot body, a first positioning pin is arranged at one end of the first spring, the first positioning pin is movably arranged in the first slot body, a second spring is arranged on the inner side surface of the second slot body, a second positioning pin is arranged at one end of the second spring, and the second positioning pin is movably arranged in the second slot body. The utility model can quickly position and fix worm gears of different specifications, and the processing angle is adjustable, and the processing efficiency is high.

[0004] The above patents often have poor fixing effects on worms that require thread groove processing, lack direction limiting clamping effects, and only fix on both sides is not strong enough. Therefore, we need to provide a fastening device for processing worm thread grooves. Utility Model Content

[0005] The utility model aims to provide a fastening device for processing a worm screw thread groove, wherein the worm to be processed is placed between two large disks, and an adjusting mechanism is used to clamp the worm with two small disks, and a servo motor is started to drive the small disk at the output end to rotate, and the three connecting rods on the surface of the small disk are driven to rotate, and the connecting rods are hinged to a swing frame to drive the swing frame to swing, and at the same time the swing frame drives a sliding block to move, and the sliding block drives a surface clamping seat to clamp the surface of the worm, and the three-claw clamping worm is clamped more firmly, wherein the servo motor is rotatably installed on the adjusting seat, and only rotational adjustment is performed, and it cannot move in the horizontal direction, thereby avoiding poor fixing effect on the worm to be processed with a screw thread groove, lacking the direction limiting clamping effect, and only fixing on both sides is not firm enough, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a fastening device for processing a worm screw thread groove, comprising:

[0007] A workbench and two adjustment seats installed on the top of the workbench;

[0008] An adjustment mechanism disposed inside the workbench for moving the two adjustment seats closer to or farther from each other;

[0009] A servo motor is rotatably installed inside the two adjustment seats;

[0010] A clamping mechanism for fixing the worm is installed at one adjacent end of the two servo motors;

[0011] The clamping mechanism includes a large disk, a small disk, a connecting rod, a swing frame, a sliding block and a clamping seat. The large disk is fixedly installed on one side of the servo motor, and the output end of the servo motor passes through one side of the large disk and is installed with the small disk. Three connecting rods are fixedly installed on the surface of the small disk, and the ends of the three connecting rods away from the small disk are hinged with a swing frame, and one end of the swing frame is hinged with a sliding block, and a clamping seat for resisting the surface of the worm is fixedly installed on one side of the sliding block.

[0012] Preferably, a guide rail for the sliding block to slide is installed on one side of the large plate, and the inner wall of the guide rail is provided with a sliding groove, and sliding blocks adapted to the sliding groove are installed on both sides of the surface of the sliding block.

[0013] Preferably, adjacent sides of the three clamping seats are each provided with a groove portion, and surfaces of the three clamping seats are each integrally machined with a reinforcement block.

[0014] Preferably, the adjustment mechanism includes a groove body, a double-threaded rod and a threaded groove. Two groove bodies are opened inside the workbench. The interior of the groove body is slidably mounted on the surface of the adjustment seat. Double-threaded rods are threadedly mounted inside the two groove bodies. The threaded groove inside the groove body is threadedly mounted on the surface of the double-threaded rod.

[0015] Preferably, a handwheel body is further included, and one end of the double-threaded rod passes through one side of the workbench and is installed with the handwheel body.

[0016] Preferably, two slide bars are fixedly mounted inside the two trough bodies, and the inside of the adjustment seat is slidably mounted on the surfaces of the two slide bars.

[0017] Preferably, two support seats are installed at the bottom of the workbench, and a controller is provided at the bottom of the workbench.

[0018] Preferably, a scale groove is provided on the top of the workbench.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model puts the worm that needs to be processed between two large disks, and uses the adjustment mechanism to clamp the two small disks to the worm, starts the servo motor to drive the small disk at the output end to rotate, drives the three connecting rods on the surface of the small disk to rotate, the connecting rods are hinged to the swing frame, drives the swing frame to swing, and at the same time the swing frame drives the sliding block to move, the sliding block drives the surface clamping seat to clamp the surface of the worm, the three-claw clamping worm is clamped more firmly, wherein the servo motor is rotatably installed on the adjustment seat, only rotation adjustment is performed, and it cannot move in the horizontal direction, avoiding poor fixing effect on the worm that needs thread groove processing, lacks the direction limit clamping effect, and only fixes on both sides are not firm enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a three-dimensional diagram of the clamping mechanism of the utility model;

[0023] Figure 3 It is a three-dimensional exploded view of the local structure of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the adjustment mechanism of the utility model.

[0025] In the figure: 1. workbench; 2. adjustment seat; 3. adjustment mechanism; 31. slot body; 32. double threaded rod; 33. threaded slot; 4. servo motor; 5. clamping mechanism; 51. large plate; 52. small plate; 53. connecting rod; 54. swing frame; 55. sliding block; 56. clamping seat; 6. guide rail; 7. slide groove; 8. slider; 9. groove part; 10. reinforcement block; 11. handwheel body; 12. slide rod; 13. support seat; 14. controller; 15. scale groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in 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 in 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] See also Figure 1-4 The utility model provides a technical solution: a fastening device for processing a worm screw thread groove 33, comprising:

[0028] A workbench 1, and two adjustment seats 2 installed on the top of the workbench 1;

[0029] An adjustment mechanism 3 is arranged inside the workbench 1 and is used to adjust the two adjustment seats 2 to move closer to or farther from each other;

[0030] A servo motor 4 is rotatably mounted inside the two adjustment seats 2;

[0031] A clamping mechanism 5 for fixing the worm is installed at the adjacent ends of the two servo motors 4;

[0032] The clamping mechanism 5 includes a large disk 51, a small disk 52, a connecting rod 53, a swing frame 54, a sliding block 55 and a clamping seat 56. The large disk 51 is fixedly installed on one side of the servo motor 4, and the output end of the servo motor 4 passes through one side of the large disk 51 and is installed with the small disk 52. Three connecting rods 53 are fixedly installed on the surface of the small disk 52. The end of the three connecting rods 53 away from the small disk 52 is hinged with a swing frame 54, and one end of the swing frame 54 is hinged with a sliding block 55. A clamping seat 56 for resisting the surface of the worm is fixedly installed on one side of the sliding block 55.

[0033] A guide rail 6 for sliding the sliding block 55 is installed on one side of the large plate 51, and a slide groove 7 is provided on the inner wall of the guide rail 6. Slide blocks 8 adapted to the slide groove 7 are installed on both sides of the surface of the sliding block 55.

[0034] The worm to be processed is placed between the two large disks 51, and the two small disks 52 are clamped to the worm by using the adjusting mechanism 3. The servo motor 4 is started to drive the small disk 52 at the output end to rotate, and the three connecting rods 53 on the surface of the small disk 52 are driven to rotate. The connecting rods 53 are hinged to the swing frame 54, driving the swing frame 54 to swing. At the same time, the swing frame 54 drives the sliding block 55 to move, and the sliding block 55 drives the surface clamping seat 56 to clamp the surface of the worm. The three-claw clamping of the worm is more secure. The servo motor 4 is rotatably installed on the adjusting seat 2, and can only be adjusted in rotation, and cannot move horizontally. It should be noted that the servo motor 4 rotates in the reverse direction for one circle and then resets in the reverse direction. The servo motor 4 cannot be rotated in the reverse direction all the time.

[0035] A groove portion 9 is formed on one side adjacent to the three clamping seats 56, and a reinforcement block 10 is integrally processed on the surface of the three clamping seats 56;

[0036] Specifically, a groove portion 9 is provided on the surface of the clamping seat 56 to clamp the surface of the worm more firmly, and a reinforcement block 10 is provided to enhance the support of the clamping seat 56 .

[0037] The adjustment mechanism 3 includes a slot body 31, a double threaded rod 32 and a threaded slot 33. Two slot bodies 31 are provided inside the workbench 1. The inside of the slot body 31 is slidably mounted on the surface of the adjustment seat 2. The double threaded rod 32 is threadedly mounted inside the two slot bodies 31. The threaded slot 33 inside the slot body 31 is threadedly mounted on the surface of the double threaded rod 32.

[0038] Furthermore, by rotating the double-threaded rod 32, the two adjustment seats 2 on the surface are driven to approach each other, so that the two clamping mechanisms 5 are brought close to each other, which is suitable for worms of different lengths.

[0039] In order to make the double-threaded rod 32 more convenient to rotate, a handwheel body 11 is also included. One end of the double-threaded rod 32 passes through one side of the workbench 1 and is installed with the handwheel body 11.

[0040] Two slide bars 12 are fixedly installed inside the two groove bodies 31, and the inside of the adjustment seat 2 is slidably installed with the surfaces of the two slide bars 12;

[0041] Furthermore, when the adjustment seat 2 slides in the groove body 31, it will slide and adjust on the two slide bars 12, thereby enhancing the balance.

[0042] Two support seats 13 are installed at the bottom of the workbench 1, and a controller 14 is provided at the bottom of the workbench 1;

[0043] Specifically, a support base 13 is provided to support the workbench 1 , and a controller 14 is provided to control and adjust the servo motor 4 .

[0044] In order to facilitate observation of the length of the worm, a scale groove 15 is provided on the top of the workbench 1 .

[0045] The device places the worm to be processed between two large plates 51, and uses the adjustment mechanism 3 to clamp the worm with two small plates 52, and starts the servo motor 4 to drive the small plate 52 at the output end to rotate, and drives the three connecting rods 53 on the surface of the small plate 52 to rotate. The connecting rods 53 are hinged with the swing frame 54, driving the swing frame 54 to swing, and at the same time the swing frame 54 drives the sliding block 55 to move, and the sliding block 55 drives the surface clamping seat 56 to clamp the surface of the worm. The three-claw clamping worm is more firmly clamped, wherein the servo motor 4 is rotatably installed on the adjustment seat 2, and can only be adjusted in rotation, and cannot move in the horizontal direction. By rotating the double-threaded rod 32, the two adjustment seats 2 on the surface are driven to approach each other, so that the two clamping mechanisms 5 are brought close to each other, which is suitable for worms of different lengths.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastening device for machining a worm screw thread groove, characterized in that: It includes a workbench and two adjustment seats installed on the top of the workbench; an adjustment mechanism for moving the two adjustment seats closer to or away from each other is arranged inside the workbench; servo motors are rotatably installed inside the two adjustment seats; a clamping mechanism for fixing the worm is installed at one adjacent end of the two servo motors; the clamping mechanism includes a large disk, a small disk, a connecting rod, a swing frame, a sliding block and a clamping seat, a large disk is fixedly installed on one side of the servo motor, and an output end of the servo motor passes through one side of the large disk and is installed with a small disk, three connecting rods are fixedly installed on the surface of the small disk, the ends of the three connecting rods away from the small disk are hinged with a swing frame, one end of the swing frame is hinged with a sliding block, and a clamping seat for contacting the surface of the worm is fixedly installed on one side of the sliding block.

2. A fastening device for machining a worm screw thread groove according to claim 1, characterized in that: A guide rail for sliding the sliding block is installed on one side of the large plate, and the inner wall of the guide rail is provided with a sliding groove, and sliding blocks adapted to the sliding groove are installed on both sides of the surface of the sliding block.

3. A fastening device for machining a worm screw thread groove according to claim 1, characterized in that: A groove portion is provided on one adjacent side of the three clamping seats, and reinforcing blocks are integrally processed on the surfaces of the three clamping seats.

4. A fastening device for machining a worm screw thread groove according to claim 1, characterized in that: The adjustment mechanism includes a groove body, a double-threaded rod and a threaded groove. Two groove bodies are opened inside the workbench. The interior of the groove body is slidably mounted on the surface of the adjustment seat. Double-threaded rods are threadedly mounted inside the two groove bodies. The threaded groove inside the groove body is threadedly mounted on the surface of the double-threaded rod.

5. A fastening device for machining a worm screw thread groove according to claim 4, characterized in that: It also includes a handwheel body, and one end of the double-threaded rod passes through one side of the workbench and is installed with the handwheel body.

6. A fastening device for machining a worm screw thread groove according to claim 4, characterized in that: Two slide bars are fixedly installed inside the two trough bodies, and the inside of the adjustment seat is slidably installed with the surfaces of the two slide bars.

7. A fastening device for machining a worm screw thread groove according to claim 1, characterized in that: Two supporting seats are installed at the bottom of the workbench, and a controller is arranged at the bottom of the workbench.

8. A fastening device for machining a worm screw thread groove according to claim 1, characterized in that: The top of the workbench is provided with a scale groove.

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