Adjustable differential adjusting device and platform

Abstract

According to the adjustable differential adjusting device and the platform, the thread pitch of threads on a shaft body of a movable shaft and the thread pitch in a through hole of a fixed part are set to be inconsistent, when the shaft body rotates by a circle, the whole device can extend or shorten the distance of a thread pitch difference, and accurate position adjustment is achieved. The device has the advantages of low processing difficulty, high adjusting precision and low function cost. The adjusting device is wide in application scene, and can be used for platform adjustment, roller adjustment, axis distance adjustment of shaft parts, adjustment with high limiting requirements and the like with high requirements.

Description

Technical Field

[0001] The utility model relates to a precision fine-tuning device, and more specifically, to an adjustable differential regulating device and a platform. Background Art

[0002] In assembly and testing, it is often necessary to precisely adjust the positions of parts. Currently, the commonly used methods include using a high-precision distance meter to measure and adjust, using a pair of screw pairs for adjustment, and purchasing some expensive standard parts or finished parts. The above methods are either low in efficiency or high in cost, and both have certain disadvantages in actual operation. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides an adjustable differential adjustment device and a platform, so as to solve the problems of low efficiency and high cost in the prior art.

[0004] In order to solve the above technical problems, the utility model provides an adjustable differential adjustment device:

[0005] An adjustable differential adjustment device comprises a movable shaft, an adjustment sleeve and a fixing member;

[0006] The movable shaft comprises a top support and a shaft body, wherein the top support is located at the top of the shaft body, the top of the top support is a plane, and the shaft body is provided with uniform threads;

[0007] The adjusting sleeve comprises a protrusion and a sleeve, wherein the protrusion is located at the top of the sleeve, the protrusion and the sleeve are through holes, the through holes have threads matching with the threads on the movable shaft body, and the sleeve is provided with uniform threads on the outside;

[0008] The interior of the fixing piece is a through hole, and the through hole has a thread that matches the inner thread of the through hole of the adjusting sleeve;

[0009] The thread pitch on the movable shaft body is inconsistent with the thread pitch in the through hole of the fixing member. The movable shaft is installed in the adjusting sleeve, and the fixing member is installed outside the adjusting sleeve.

[0010] When the position between parts needs to be precisely adjusted, the movable shaft and the fixed part do not rotate, only the adjusting sleeve needs to be rotated. When the adjusting sleeve rotates, it will rotate relative to the movable shaft and the fixed part at the same time. When one is screwed in, the other is screwed out. Since the pitch of the thread on the movable shaft body and the pitch in the through hole of the fixed part are inconsistent, when rotating one circle, the entire device will extend or shorten by a pitch difference, realizing precise position adjustment.

[0011] A further technical solution is that the differential adjustment device further includes a tightening nut;

[0012] The inner side of the tightening nut is provided with a thread matching the thread on the movable shaft body, and the tightening nut is installed on the movable shaft body.

[0013] Since the clamping nut can rotate on the movable shaft, by rotating the clamping nut on the protruding portion of the adjusting sleeve, the movement of the adjusting sleeve can be further restricted, making the differential adjusting device more accurately adjustable.

[0014] A further technical solution is that the protrusion of the adjustment sleeve is hexagonal.

[0015] Because the adjustment sleeve needs to be rotated, if the protrusion of the adjustment sleeve is round, it is difficult to bear the force, resulting in inconvenience in use. The hexagonal protrusion can be rotated using tools such as a wrench, thereby improving ease of use.

[0016] A further technical solution is that a scale is provided on the movable shaft.

[0017] By observing the scale on the movable shaft, you can know the amount of rotation and extension.

[0018] A further technical solution is that a fixing screw hole is provided on the movable shaft support;

[0019] A fixing seat is arranged below the fixing piece, and a fixing screw hole is arranged on the fixing seat.

[0020] By fixing the movable shaft support and the fixing member fixing seat on the corresponding planes whose distance needs to be controlled through screw holes and screws, the positional relationship between the differential adjustment device and the plane can be made more stable, thereby improving the accuracy of distance adjustment.

[0021] On the other hand, the utility model provides an adjustable differential adjustment platform:

[0022] An adjustable differential adjustment platform, comprising the differential adjustment device as described above, a platform;

[0023] The differential adjustment device is arranged at the bottom of the platform, and the number of the differential adjustment devices is not less than 3.

[0024] By adjusting the height of different differential adjustment devices, the height and inclination of the platform can be adjusted.

[0025] Compared with the prior art, the utility model has at least the following beneficial effects: the utility model sets the thread pitch on the movable shaft body and the thread pitch in the through hole of the fixing part to be inconsistent. When rotating one circle, the entire device will extend or shorten a distance of the pitch difference to achieve precise position adjustment. It has the advantages of low processing difficulty, high adjustment accuracy and low functional cost. The utility model has a wide range of application scenarios and can be used for platform adjustment with higher requirements, roller adjustment, axis center distance adjustment of shaft parts, adjustment with higher limit requirements, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0028] In the figure, 1-movable shaft, 11-top support, 12-axis body, 2-adjusting sleeve, 21-protrusion, 22-shaft sleeve, 3-fixing piece, 31-fixing seat, 4-tightening nut. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] Embodiment 1

[0031] An adjustable differential regulating device, see Figure 1 , including a movable shaft 1, an adjusting sleeve 2, a fixing part 3, and a tightening nut 4;

[0032] The movable shaft 1 includes a top support 11 and a shaft body 12. The top support 11 is located at the top of the shaft body 12. The top of the top support 11 is a flat surface. The top support 11 is provided with fixing screw holes. In this embodiment, the number of fixing screw holes is 4.

[0033] The shaft body 12 is provided with uniform threads and a scale;

[0034] The adjusting sleeve 2 comprises a protruding portion 21 and a shaft sleeve 22 . The protruding portion 21 is located at the top of the shaft sleeve 22 . The protruding portion 21 of the adjusting sleeve 2 is hexagonal.

[0035] The protrusion 21 and the sleeve 22 are through holes inside, and the through holes have threads that match the threads on the shaft body 12 of the movable shaft 1, and the outer side of the sleeve 22 is provided with uniform threads;

[0036] The fixing member 3 has a through hole inside, and a thread in the through hole matches the thread in the through hole of the adjusting sleeve 2. A fixing seat 31 is provided below the fixing member 3, and the fixing seat 31 is provided with four fixing screw holes.

[0037] The inner side of the tightening nut 4 is provided with a thread that matches the thread on the shaft body 12 of the movable shaft 1;

[0038] The thread pitch on the shaft body 12 of the movable shaft 1 is inconsistent with the thread pitch in the through hole of the fixing member 3. In this embodiment, the thread pitch of the fixing member 3 is 1.25 mm, and the thread pitch of the shaft body 12 of the movable shaft 1 is 1.0 mm.

[0039] The movable shaft 1 is installed in the adjusting sleeve 2 , the fixing member 3 is installed outside the adjusting sleeve 2 , and the tightening nut 4 is installed on the shaft body 12 of the movable shaft 1 .

[0040] When using the differential adjustment device, first use screws to fix the top support 11 of the shaft body 12 and the fixing seat 31 below the fixing member 3 on the plane where the distance needs to be adjusted;

[0041] When the positions between parts need to be precisely adjusted, the movable shaft 1 and the fixing part 3 do not rotate, and the adjusting sleeve 2 is rotated. When the adjusting sleeve 2 rotates, it will rotate relative to the movable shaft 1 and the fixing part 3 at the same time. When one of them is screwed in, the other is screwed out.

[0042] Since the thread pitch on the shaft body 12 of the movable shaft 1 is inconsistent with the thread pitch in the through hole of the fixing part 3, when the adjusting sleeve 2 is rotated out of the fixing part 3 by one circle, the adjusting sleeve 2 is raised by 1.25mm relative to the fixing part 3, but the movable shaft 1 is screwed in by 1.0mm at the same time. The actual height increases by 0.25mm / circle, and vice versa. This accuracy is higher than the 0.5mm / circle of the micrometer, achieving precise position adjustment.

[0043] Embodiment 2

[0044] An adjustable differential adjustment platform, see Figure 2 , including the differential adjustment device as described above, platform;

[0045] The differential adjustment device is arranged at the bottom of the platform, and the number of the differential adjustment devices is not less than 3. In the present embodiment, the number of the differential adjustment devices is 4, which are arranged at the four corners of the bottom of the platform.

[0046] When the height or angle of the platform needs to be adjusted, it is only necessary to adjust the height of the differential adjustment device under the platform. In actual use, the position and number of the differential adjustment devices can be adjusted according to actual use conditions.

[0047] Although the utility model is described herein with reference to the illustrative embodiments of the utility model, it should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope disclosed in the present application, multiple variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be obvious to those skilled in the art.

Claims

1. An adjustable differential adjustment device, characterized in that: Including, movable shaft, adjustment sleeve, fixing parts; The movable shaft comprises a top support and a shaft body, wherein the top support is located at the top of the shaft body, the top of the top support is a plane, and the shaft body is provided with uniform threads; The adjusting sleeve comprises a protrusion and a sleeve, wherein the protrusion is located at the top of the sleeve, the protrusion and the sleeve are through holes, the through holes have threads matching with the threads on the movable shaft body, and the sleeve is provided with uniform threads on the outside; The interior of the fixing piece is a through hole, and the through hole has a thread that matches the inner thread of the through hole of the adjusting sleeve; The thread pitch on the movable shaft body is inconsistent with the thread pitch in the through hole of the fixing member. The movable shaft is installed in the adjusting sleeve, and the fixing member is installed outside the adjusting sleeve.

2. An adjustable differential adjustment device as claimed in claim 1, characterized in that: Also included is a tightening nut; The inner side of the tightening nut is provided with a thread matching the thread on the movable shaft body, and the tightening nut is installed on the movable shaft body.

3. An adjustable differential adjustment device as claimed in claim 1, characterized in that: The protrusion of the adjusting sleeve is hexagonal.

4. An adjustable differential adjustment device as claimed in claim 1, characterized in that: The movable shaft body is provided with a scale.

5. An adjustable differential adjustment device as claimed in claim 1, characterized in that: The movable shaft support is provided with a fixing screw hole; A fixing seat is arranged below the fixing piece, and a fixing screw hole is arranged on the fixing seat.

6. An adjustable differential adjustment platform, characterized in that: A differential adjustment device as claimed in any one of claims 1 to 5, a platform; The differential adjustment device is arranged at the bottom of the platform, and the number of the differential adjustment devices is not less than 3.

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