Worm and gear adjusting clamping mechanism

Abstract

The utility model discloses a worm and gear adjusting and clamping mechanism, and belongs to the technical field of supporting and clamping devices. A worm and gear adjusting and clamping mechanism comprises a base; the end cover is fixedly connected to the base; the two groups of end covers are symmetrically arranged on the base; the sliding block is connected to the base in a sliding manner; the clamping wheel is rotationally connected to the sliding block; the sliding block slides to drive the clamping wheel to move for clamping and loosening; the worm gear is used for driving the worm to rotate, the transmission ratio is larger, the speed reducing and torque increasing effects can be achieved, meanwhile, the worm gear and the worm are used for transmission, transmission is more compact, and stability is better; the worm gear and the worm are used for transmission, so that the transmission noise can be effectively reduced; when the lead angle of the worm is smaller than the equivalent friction angle between the worm wheels, the worm wheels and the worm can achieve reverse self-locking, safety protection can be achieved, clamping is completed through transmission of the worm wheels and the worm, the use cost is low, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting and clamping, in particular to a worm gear adjusting and clamping mechanism. Background Art

[0002] When supporting certain workpieces, the supporting structure or supporting system needs to be locked after the support is completed.

[0003] Commonly used locking methods in the prior art include hinge locking, toggle clamping and hydraulic clamping:

[0004] The mechanical characteristics of the hinge are used to provide the clamping force required during material injection. The mechanical toggle clamp has a fast closing and opening speed and is cheaper than other clamping devices. However, the disadvantage of this clamping method is that the clamping force may not be effectively controlled and is not very applicable.

[0005] Liquid pressure is used to open and close the clamps and generate the required clamping force during material injection. The advantages of hydraulic clamping are high reliability and precise control of clamping force. However, the disadvantage of this clamping method is that the hydraulic system is relatively slow and expensive compared to existing clamping devices. Utility Model Content

[0006] The utility model aims to solve the problems raised in the above-mentioned background technology and proposes a worm gear adjusting clamping mechanism.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A worm gear adjustment and clamping mechanism, comprising:

[0009] Pedestal;

[0010] An end cover, fixedly connected to the base;

[0011] The two groups of end covers are symmetrically arranged on the base;

[0012] A slider, slidably connected to the base;

[0013] A clamping wheel, rotatably connected to the slide block;

[0014] The sliding of the slide block drives the clamping wheel to move, clamp and release.

[0015] Preferably, the end cover is fixedly connected with a mounting seat, the mounting seat is fixedly connected with a supporting seat, the supporting seat is rotatably connected with a screw rod, a threaded hole is provided on the slider, and the screw rod and the slider are threadedly matched.

[0016] Furthermore, a worm wheel and a worm are rotatably connected to the mounting seat, and the threads of the worm wheel and the worm are matched.

[0017] Furthermore, thrust bearings are arranged on both sides of the worm gear.

[0018] Furthermore, a locking ring is fixedly connected to the screw rod, and the locking ring is connected to the worm gear.

[0019] Furthermore, the sliding block is fixedly connected to a support shaft, the support shaft is rotatably connected to a rotating bearing, and the clamping wheel is fixedly connected to the rotating bearing.

[0020] Furthermore, a clamping plate is connected to the support shaft, a clamping sleeve is sleeved on the support shaft, and the clamping sleeve is located between the clamping plate and the clamping wheel.

[0021] Furthermore, a slide groove is provided on the clamping plate, a clamping block is slidably connected in the slide groove, and the clamping block is connected to the support shaft.

[0022] Furthermore, a screw rod is rotatably connected to the clamping plate, a nut is fixedly connected to the clamping plate, the nut matches the screw rod, and the screw rod is fixedly connected to the clamping block.

[0023] Preferably, a guide plate is fixedly connected to the base, and the slider is slidably connected to the guide plate.

[0024] Compared with the prior art, the utility model provides a worm gear adjustment clamping mechanism, which has the following beneficial effects:

[0025] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The utility model uses a worm wheel to drive the worm to rotate, and the transmission ratio is larger, which can achieve the effect of reducing speed and increasing torque. At the same time, the use of worm wheel and worm transmission makes the transmission more compact and has better stability; the use of worm wheel and worm transmission can effectively reduce transmission noise; when the lead angle of the worm is smaller than the equivalent friction angle between the worm wheels, the worm wheel and worm can achieve reverse self-locking, which can play a role in safety protection. The use of worm wheel and worm transmission to complete clamping has low cost and a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a worm gear adjustment and clamping mechanism proposed by the utility model;

[0027] Figure 2 The utility model discloses an exploded view of a worm gear adjustment and clamping mechanism.

[0028] In the figure: 1. base; 101. guide plate; 102. end cover; 2. clamping plate; 201. slide groove; 3. slider; 4. screw; 5. mounting seat; 501. thrust bearing; 502. locking ring; 6. clamping block; 601. screw; 6011. nut; 7. worm; 8. clamping wheel; 801. rotating bearing; 9. support shaft; 901. clamping spacer; 10. worm wheel; 11. support seat. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Embodiment 1:

[0031] Reference Figure 1-Figure 2 , a worm gear adjustment clamping mechanism, comprising:

[0032] Base 1;

[0033] The end cover 102 is fixedly connected to the base 1;

[0034] Two sets of end covers 102 are symmetrically arranged on the base 1;

[0035] A slider 3 is slidably connected to the base 1;

[0036] A clamping wheel 8 is rotatably connected to the slider 3;

[0037] The sliding of the slider 3 drives the clamping wheel 8 to move, clamp and release.

[0038] The end cover 102 is fixedly connected with a mounting seat 5, the mounting seat 5 is fixedly connected with a support seat 11, the support seat 11 is rotatably connected with a screw rod 4, a threaded hole is provided on the slider 3, and the screw rod 4 and the slider 3 are threadedly matched.

[0039] The mounting seat 5 is rotatably connected with a worm wheel 10 and a worm 7 , and the threads of the worm wheel 10 and the worm 7 match.

[0040] Thrust bearings 501 are provided on both sides of the worm wheel 10 .

[0041] The transmission ratio of the worm wheel 10 and the worm 7 is 1:20.

[0042] It should be noted that the transmission ratio between the worm wheel 10 and the worm 7 can be adjusted according to requirements.

[0043] Reference Figure 2 By using the worm wheel 10 to drive the worm 7 to rotate, the transmission ratio is larger, which can achieve the effect of reducing speed and increasing torque. At the same time, the worm wheel 10 and the worm 7 are used for transmission, which makes the transmission more compact and more stable.

[0044] Reference Figure 2 The use of worm wheel 10 and worm 7 for transmission can effectively reduce transmission noise.

[0045] It should be noted that when the lead angle of the worm 7 is smaller than the equivalent friction angle between the worm wheel 10 , the worm wheel 10 and the worm 7 can achieve reverse self-locking, which can play a role in safety protection.

[0046] A locking ring 502 is fixedly connected to the screw rod 4 , and the locking ring 502 and the thrust bearing 501 are against each other.

[0047] The slider 3 is fixedly connected with a support shaft 9 , the support shaft 9 is rotatably connected with a rotary bearing 801 , and the clamping wheel 8 is fixedly connected to the rotary bearing 801 .

[0048] The support shaft 9 is connected with a clamping plate 2 , and a clamping sleeve 901 is sleeved on the support shaft 9 . The clamping sleeve 901 is located between the clamping plate 2 and the clamping wheel 8 .

[0049] A slide groove 201 is provided on the clamping plate 2 , and a tightening block 6 is slidably connected in the slide groove 201 . The tightening block 6 is connected to the supporting shaft 9 .

[0050] A screw rod 601 is rotatably connected to the clamping plate 2 , a nut 6011 is fixedly connected to the clamping plate 2 , the nut 6011 matches the screw rod 601 , and the screw rod 601 is fixedly connected to the clamping block 6 .

[0051] The base 1 is fixedly connected with a guide plate 101 , and the slider 3 is slidably connected with the guide plate 101 .

[0052] Reference Figure 1-Figure 2 During use, by rotating the worm 7, the worm 7 will drive the worm wheel 10 meshing with it to rotate, the rotation of the worm wheel 10 will drive the screw 4 to rotate, the rotation of the screw 4 will drive the slider 3 to slide on the guide plate 101, the sliding slider 3 will drive the support shaft 9 connected to it to move, the movement of the support shaft 9 will drive the clamping wheel 8 to move, thereby completing the clamping operation;

[0053] After the clamping operation, the clamping plate 2 can be manually clamped on the support shaft 9 on one side, and the clamping block 6 can be clamped on the support shaft 9 on the other side. By rotating the screw 601, the screw 601 will push the clamping block 6 to move, thereby locking the slider 3, reducing the possibility of displacement due to vibration after clamping, and improving the clamping effect.

[0054] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A worm gear adjustment clamping mechanism, characterized in that: include: Base (1); An end cover (102) is fixedly connected to the base (1); The two groups of end covers (102) are symmetrically arranged on the base (1); A slider (3) is slidably connected to the base (1); A clamping wheel (8) rotatably connected to the slider (3); The sliding block (3) drives the clamping wheel (8) to move, clamp and release.

2. A worm gear adjustment and clamping mechanism according to claim 1, characterized in that: The end cover (102) is fixedly connected to a mounting seat (5), the mounting seat (5) is fixedly connected to a support seat (11), the support seat (11) is rotatably connected to a screw rod (4), a threaded hole is provided on the slider (3), and the screw rod (4) and the slider (3) are threadedly matched.

3. A worm gear adjustment and clamping mechanism according to claim 2, characterized in that: A worm wheel (10) and a worm (7) are rotatably connected to the mounting seat (5), and the threads of the worm wheel (10) and the worm (7) are matched.

4. A worm gear adjustment and clamping mechanism according to claim 3, characterized in that: Thrust bearings (501) are arranged on both sides of the worm wheel (10).

5. A worm gear adjustment and clamping mechanism according to claim 4, characterized in that: A locking ring (502) is fixedly connected to the screw rod (4), and the locking ring (502) is connected to the worm gear (10).

6. A worm gear adjustment and clamping mechanism according to claim 2, characterized in that: The slider (3) is fixedly connected to a support shaft (9), the support shaft (9) is rotatably connected to a rotating bearing (801), and the clamping wheel (8) is fixedly connected to the rotating bearing (801).

7. A worm gear adjustment and clamping mechanism according to claim 6, characterized in that: The support shaft (9) is connected to a clamping plate (2), and a clamping sleeve (901) is sleeved on the support shaft (9), wherein the clamping sleeve (901) is located between the clamping plate (2) and the clamping wheel (8).

8. The worm gear adjustment and clamping mechanism according to claim 7, characterized in that: The clamping plate (2) is provided with a sliding groove (201), a clamping block (6) is slidably connected in the sliding groove (201), and the clamping block (6) is connected to the supporting shaft (9).

9. The worm gear adjustment and clamping mechanism according to claim 8, characterized in that: A screw rod (601) is rotatably connected to the clamping plate (2), a nut (6011) is fixedly connected to the clamping plate (2), the nut (6011) matches the screw rod (601), and the screw rod (601) is fixedly connected to the clamping block (6).

10. The worm gear adjustment and clamping mechanism according to claim 1, characterized in that: A guide plate (101) is fixedly connected to the base (1), and the slider (3) is slidably connected to the guide plate (101).

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