Worm machining grinding machine of electric actuating mechanism

Abstract

The utility model discloses a grinding machine for machining a worm of an electric actuating mechanism, and aims to solve the problems that in the prior art, the clamping step of the worm is tedious, manual assistance is needed, the labor intensity of workers is high, and the efficiency is low. According to the technical scheme, the grinding machine for machining the worm of the electric actuating mechanism comprises a machine body, a clamping assembly used for fixing the worm and a grinding assembly used for grinding the fixed worm are arranged on the machine body, the clamping assembly comprises a workbench, a control box is arranged on one side of the workbench, a rotating disc is arranged on the control box, and the grinding assembly is arranged on the rotating disc. And a support frame is arranged on the rotating disc. According to the grinding machine for machining the worm of the electric actuating mechanism, the second center body is driven by the moving block to enable the worm to abut against the first center body to move, meanwhile, the moving block drives the sliding ring to move through the connecting block, then the multiple clamping rods are driven by the connecting rod to move, the worm abuts against the outer side of the worm, the clamping step is simpler, and the working efficiency is improved. And manual operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, and more specifically to a worm processing grinder with an electric actuator. Background Art

[0002] An electric actuator is a mechanism used to control the rotation or movement of a valve stem, thereby controlling the opening and closing of the valve. It is mainly composed of an electronic control part, a sensor, a manual mechanism, a worm gear, a housing, etc. Among them, the worm gear is a key transmission component, and its processing quality directly affects the performance and stability of the transmission system. Therefore, precision processing of the worm gear is very important.

[0003] The worm is generally first turned on a lathe with a turning tool, and the spiral teeth of the worm are finely processed by a worm grinder. During the processing, the worm to be ground is first clamped and fixed, and then the worm is driven to rotate while the grinding wheel is horizontally displaced to fully grind the spiral teeth. For example, a workpiece clamping device for a cylindrical grinder disclosed in a Chinese patent with publication number CN209466110U includes two top bodies and a rotating disc. The two top bodies are respectively placed at both ends of the cylindrical grinder body and arranged oppositely. One of the top bodies is fixed on the rotating disc, and a rotating frame is provided on the rotating disc. A fixed ring is connected to the end of the rotating frame away from the rotating disc. The fixed ring rotates with the rotation of the rotating disc and is concentric with the workpiece; a fastener for fixing the workpiece is provided on the fixed ring. The above scheme uses two top bodies to press the worm tightly, and then passes one end of the worm through the fixing ring and presses the worm tightly to fix it, so as to prevent the worm from jumping between the top bodies, so as to achieve the purpose of stable clamping.

[0004] However, in the specific implementation of the above scheme, after the worm is inserted into the fixing ring, whether it is fixed by screwing multiple fastening bolts to contact the worm, or clamping the worm by a locking connection, the positioning of each worm to be ground needs to be clamped and fixed twice. The clamping steps are cumbersome and require manual assistance, which results in high labor intensity and low efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a worm processing grinder with an electric actuator. Through the clamping assembly, the moving block drives the second top body to press the worm against the first top body for movement. At the same time, the moving block drives the sliding ring to move through the connecting block, and then drives multiple clamping rods to move through the connecting rod, thereby pressing the worm from the outside of the worm. The clamping steps are simpler and manual operation is avoided. The clamping effect is stable and the work efficiency is improved.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: an electric actuator worm processing grinder, comprising a bed, on which a clamping assembly for fixing the worm and a grinding assembly for grinding the fixed worm are arranged, the clamping assembly comprises a workbench, a control box is arranged on one side of the workbench, a rotating disc is arranged on the control box, a supporting frame is arranged on the rotating disc, a driving cylinder is arranged on the supporting frame, a moving block is arranged on the telescopic end of the driving cylinder, and a first top body is arranged on the other side of the moving block; a sleeve is arranged on the outer side of the moving block, one end of the sleeve is fixedly connected to the supporting frame, and symmetrical openings are provided on the sleeve There is a through groove, connecting blocks are symmetrically arranged on the moving block, a sliding ring is slidably connected to the outer wall of the sleeve, the connecting block extends to the outside of the through groove and is fixedly connected to the sliding ring, a plurality of connecting rods are rotatably connected to the sliding ring, the connecting rods are distributed in a ring array, and the other ends of the connecting rods are rotatably connected to clamping rods, one end of the clamping rods is provided with a slider, a slide rail for the slider to slide is provided on the support frame, and clamping blocks are provided on the inner side of the ends of the clamping rods away from the slider, the clamping surface of the clamping block is an arc structure adapted to the shape of the worm, a tail box is provided on the other side of the workbench, and a second top body opposite to the first top body is provided on the tail box.

[0007] The utility model is further configured as follows: a translation guide rail is arranged on the workbench, a slide is slidably fitted on the translation guide rail, support seats are arranged at both ends of the translation guide rail, an adjusting screw is rotatably connected between the two support seats via a bearing, a driving motor is arranged on one of the support seats, an output shaft of the driving motor is transmission-connected to one end of the screw, the slide is threadedly sleeved on the adjusting screw, and the tail box is arranged on the slide.

[0008] The utility model is further configured as follows: two groups of the sliding rings, the connecting blocks and the connecting rods are arranged in parallel, and a fixing rod is arranged between the two sliding rings.

[0009] The utility model is further configured as follows: the support frame is provided with a limiting block on one side of the slide rail, and the limiting block is located on a side of the slide block away from the sleeve and abuts against the slide block.

[0010] The utility model is further configured as follows: a rubber pad is arranged on the clamping surfaces of a plurality of the clamping blocks.

[0011] In summary, the utility model has the following beneficial effects:

[0012] Through the clamping assembly, the moving block drives the second top body to press the worm against the first top body for movement. At the same time, the moving block drives the sliding ring to move through the connecting block, and then drives multiple clamping rods to move through the connecting rod, thereby pressing the worm from the outside of the worm. The clamping steps are simpler and manual operation is avoided. The clamping effect is stable and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the grinding machine of the utility model, showing the structural features of the clamping assembly and the grinding assembly of the utility model;

[0014] Figure 2 for Figure 1 The enlarged schematic diagram of part A shows the structural features of the support frame, sleeve, connecting rod, sliding ring and clamping rod of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the adjusting screw rod, the translation guide rail and the slide table of the utility model, showing the structural features of the adjusting screw rod, the translation guide rail and the slide table of the utility model.

[0016] In the figure: 1. bed; 2. grinding assembly; 3. workbench; 4. control box; 5. rotating disc; 6. support frame; 7. moving block; 8. first centering body; 9. sleeve; 10. through groove; 11. connecting block; 12. sliding ring; 13. connecting rod; 14. clamping rod; 15. slider; 16. slide rail; 17. clamping block; 18. tail box; 19. second centering body; 20. translation guide rail; 21. slide; 22. support seat; 23. adjusting screw; 24. fixing rod; 25. limit block; 26. rubber pad. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] The utility model is described in detail below in conjunction with the accompanying drawings.

[0021] Reference Figure 1-Figure 3 A worm processing grinder with an electric actuator includes a bed 1, on which are provided a clamping assembly for fixing the worm and a grinding assembly 2 for grinding the fixed worm. In this embodiment, the grinding assembly 2 is a common existing technology on the market. The grinding assembly 2 is located on one side of the clamping assembly and grinds the teeth by moving forward, backward, left and right relative to the worm. Those skilled in the art should understand this and will not be elaborated on here.

[0022] The clamping assembly includes a workbench 3, a control box 4 is provided on one side of the workbench 3, a rotating disc 5 is provided on the control box 4, a support frame 6 is fixed on the rotating disc 5, a driving cylinder is fixed on the support frame 6, a moving block 7 is fixed on the telescopic end of the driving cylinder, and a first top body 8 is fixed on the other side of the moving block 7;

[0023] A sleeve 9 is provided on the outer side of the moving block 7, one end of the sleeve 9 is fixedly connected to the support frame 6, and a through groove 10 is symmetrically opened on the sleeve 9. A connecting block 11 is symmetrically fixed on the moving block 7. A sliding ring 12 is slidably connected to the outer wall of the sleeve 9, and the connecting block 11 extends to the outer side of the through groove 10 and is fixedly connected to the sliding ring 12. A plurality of connecting rods 13 are rotatably connected to the sliding ring 12. The plurality of connecting rods 13 are distributed in a ring array, and the other ends of the plurality of connecting rods 13 are rotatably connected to clamping rods 14, and one end of the plurality of clamping rods 14 is fixedly provided with a slider 15, and a slide rail 16 for sliding the slider 15 is fixedly provided on the support frame 6, and a clamping block 17 is fixedly provided on the inner side of one end of the clamping rod 14 away from the slider 15, and the clamping surface of the clamping block 17 is an arc structure adapted to the shape of the worm. A tail box 18 is provided on the other side of the workbench 3, and a second top body 19 opposite to the first top body 8 is provided on the tail box 18.

[0024] Additionally, a translation guide rail 20 is fixedly provided on the workbench 3, and a slide 21 is slidably matched on the translation guide rail 20. Support seats 22 are fixedly provided at both ends of the translation guide rail 20 of the workbench 3. An adjusting screw 23 is rotatably connected between the two support seats 22 through a bearing. A driving motor is fixedly provided on one of the support seats 22, and the output shaft of the driving motor is transmission-connected to one end of the screw. The slide 21 is threadedly sleeved on the adjusting screw 23, and the tail box 18 is arranged on the slide 21. Since the first top body 8 and the clamping block 17 are linked Movement, so when the specifications of the worm are changed, it is necessary to adjust the distance between the second top body 19 and the first top body 8, so that the clamping block 17 can maintain the effect of clamping the outer wall of the worm just as the first top body 8 moves. Specifically: the driving motor rotates to drive the adjusting screw 23 to rotate, so that the slide 21 slides along the translation guide rail 20 under the action of the thread, thereby adjusting the distance between the second top body 19 and the first top body 8, so that the clamping assembly can adapt to more worms of different lengths and diameters for clamping and fixing.

[0025] The sliding ring 12 , the connecting block 11 and the connecting rod 13 are arranged in two groups in parallel, and a fixing rod 24 is arranged between the two sliding rings 12 , which can enhance the stability of the structure and improve the driving effect of the moving block 7 on the clamping rod 14 .

[0026] The support frame 6 is fixed with a limit block 25 on one side of the slide rail 16 . The limit block 25 is located on the side of the slider 15 away from the sleeve 9 and abuts against the slider 15 . When the driving cylinder retracts and drives the slider 15 to move back, the limit block 25 limits the slider 15 .

[0027] The clamping surfaces of the clamping blocks 17 are all bonded with rubber pads 26 . The rubber pads 26 have excellent anti-slip properties. Therefore, when the clamping blocks 17 contact the surface of the worm, the clamping effect can be greatly improved.

[0028] Working principle: When the grinder is in use, the worm is first placed between the first top body 8 and the second top body 19, and one end of the worm is placed against the second top body 19. Then the driving cylinder is controlled to extend, and the driving cylinder pushes the moving block 7 to move. The second top body 19 continues to approach the other end of the worm as the moving block 7 moves. During the movement of the moving block 7, the sliding ring 12 can be driven to move synchronously through the connecting block 11. One end of the connecting rod 13 rotates due to the force of the sliding ring 12, and the other end of the connecting rod 13 is connected to the clamping rod 14, and the clamping rod 14 is limited by the slider 15 and the slide rail 16. It can only move linearly along the support frame 6. Therefore, when the sliding ring 12 slides in the direction close to the worm, it will drive multiple clamping rods 14 to move inward until the clamping block 17 on the clamping rod 14 clamps the outer wall of the worm. At this time, the worm is firmly clamped, and the rotating disk 5 rotates to drive the clamped worm to rotate. The grinding assembly 2 grinds the worm. After grinding, the control drive cylinder retracts, which drives the moving block 7, the second top body 19 and the sliding ring 12 to move away from the worm. At the same time, the sliding ring 12 pushes the multiple clamping rods 14 to move outward through the connecting rod 13, thereby releasing the clamping of the worm.

[0029] The utility model provides a clamping assembly so that the moving block 7 drives the second top body 19 to press the worm against the first top body 8 for movement. At the same time, the moving block 7 drives the sliding ring 12 to move through the connecting block 11, and then drives multiple clamping rods 14 to move through the connecting rod 13, so as to press the worm from the outside of the worm. The clamping steps are simpler and manual operation is avoided. The clamping effect is stable and the work efficiency is improved.

[0030] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An electric actuator worm processing grinder, comprising a bed (1), the bed (1) being provided with a clamping assembly for fixing the worm and a grinding assembly (2) for grinding the fixed worm, characterized in that: The clamping assembly comprises a workbench (3), a control box (4) is arranged on one side of the workbench (3), a rotating disc (5) is arranged on the control box (4), a supporting frame (6) is arranged on the rotating disc (5), a driving cylinder is arranged on the supporting frame (6), a moving block (7) is arranged on the telescopic end of the driving cylinder, and a first pinion (8) is arranged on the other side of the moving block (7); a sleeve (9) is arranged on the outer side of the moving block (7), one end of the sleeve (9) is fixedly connected to the supporting frame (6), a through groove (10) is symmetrically provided on the sleeve (9), a connecting block (11) is symmetrically provided on the moving block (7), a sliding ring (12) is slidably connected to the outer wall of the sleeve (9), and the connecting block (11) extends to the through groove (10). ) is fixedly connected to a sliding ring (12) on its outer side, the sliding ring (12) is rotatably connected to a plurality of connecting rods (13), the plurality of connecting rods (13) are distributed in a ring array, and the other ends of the plurality of connecting rods (13) are rotatably connected to clamping rods (14), one end of the plurality of clamping rods (14) is provided with a slider (15), the support frame (6) is provided with a slide rail (16) for the slider (15) to slide, the inner side of the end of the plurality of clamping rods (14) away from the slider (15) is provided with a clamping block (17), the clamping surface of the clamping block (17) is an arc structure adapted to the shape of the worm, the other side of the workbench (3) is provided with a tail box (18), and the tail box (18) is provided with a second top body (19) opposite to the first top body (8).

2. The electric actuator worm processing grinder according to claim 1, characterized in that: The workbench (3) is provided with a translation guide rail (20), and a slide (21) is slidably matched on the translation guide rail (20). The workbench (3) is provided with support seats (22) at both ends of the translation guide rail (20), and an adjusting screw rod (23) is rotatably connected between the two support seats (22) through a bearing, and a driving motor is provided on one of the support seats (22), and the output shaft of the driving motor is drivingly connected to one end of the screw rod, the slide (21) is threadedly sleeved on the adjusting screw rod (23), and the tail box (18) is arranged on the slide (21).

3. The electric actuator worm processing grinder according to claim 1, characterized in that: The sliding ring (12), the connecting block (11) and the connecting rod (13) are arranged in two groups in parallel, and a fixing rod (24) is arranged between the two sliding rings (12).

4. The electric actuator worm processing grinder according to claim 1, characterized in that: The support frame (6) is provided with a limit block (25) on one side of the slide rail (16); the limit block (25) is located on a side of the slide block (15) away from the sleeve (9) and contacts the slide block (15).

5. The electric actuator worm processing grinder according to claim 1, characterized in that: The clamping surfaces of the plurality of clamping blocks (17) are all provided with rubber pads (26).

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