A directional precision adjustment device
By using the sliding connection structure between the guide block and the adjustment part and the rotation method of the adjustment bolt, the problem of insufficient adjustment accuracy in the prior art is solved, and high-precision adjustment of medical equipment components in two directions is achieved, avoiding offset errors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XUFENG MASCH EQUIP CO LTD
- Filing Date
- 2025-10-10
- Publication Date
- 2026-07-31
AI Technical Summary
Existing technologies make it difficult to ensure adjustment accuracy in two directions simultaneously when adjusting medical device components, and the adjustment process is prone to deviation, affecting accuracy.
The guide block adopts a sliding connection structure between the guide block and the base and adjustment part. The guide block has guide edges in two directions. Combined with the four adjusting bolts, which are rotated and tightened in the same direction, simultaneous directional movement in two directions can be achieved, eliminating offset errors.
It achieves precise directional adjustment in two directions simultaneously, improving adjustment accuracy, avoiding offset problems, and has a simple structure and low cost.
Smart Images

Figure CN224580054U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precision adjustment device technology, and in particular to a directional precision adjustment device. Background Technology
[0002] The angle and position accuracy requirements of certain components of medical equipment (such as X-ray tubes) are high, involving adjustments in two directions, and the adjustment process is prone to torsional effects.
[0003] A search revealed that Chinese utility model patent CN214237164U discloses a fixture for processing APU drill chuck shells, including a base, a shell, limiting blocks, positioning bolts, and positioning holes. The shell is cylindrical with a through hole in the middle. The shell is fixedly connected to the center of the base. The base also has positioning holes near the shell. The shell has four bolt holes on its side, located on the same cross-section. There are four positioning bolts, each passing through one of the four bolt holes. The length of the positioning bolts is greater than the thickness of the shell. The four limiting blocks are fixedly connected to the four positioning bolts. One end of the positioning bolt inside the shell is fixedly connected to the limiting block. The side of the limiting block away from the positioning bolt is curved, with the curvature matching that of the APU drill chuck shell. The side of the limiting block near the base is higher than the side away from the base.
[0004] The existing solution uses four bolts to achieve directional adjustment in different directions. However, while ensuring accuracy, this structure can only adjust one direction at a time. If adjustments in two directions are made simultaneously, the process of loosening and tightening the corresponding bolts in different directions may affect each other, causing offset and reducing adjustment accuracy. Utility Model Content
[0005] In view of the above-mentioned prior art, the present invention provides a directional precision adjustment device, the main technical problem to be solved is how to ensure adjustment accuracy.
[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows: A directional precision adjustment device includes a base and an adjustment part for placing the part to be adjusted. A guide block is provided between the base and the adjustment part. The top and bottom ends of the guide block are respectively provided with a first guide edge and a second guide edge. The guide block is slidably connected to the base through the first guide edge and slidably connected to the adjustment part through the second guide edge. A plurality of adjustment bolts are provided on the base. The adjustment bolts push the adjustment part to move by screwing themselves in.
[0007] Furthermore, the top outer side of the base is provided with several fixing blocks, and mounting bolts are provided through both sides of the fixing blocks. The base has a second threaded groove at the bottom of the mounting bolts, and the bolts are threadedly connected to the base at the second threaded groove.
[0008] Furthermore, a horizontal waist-shaped hole is provided in the middle of the fixed block. The number of fixed blocks and adjusting bolts are the same and correspond one-to-one. The adjusting bolts pass through the fixed blocks at the waist-shaped hole.
[0009] Furthermore, several through holes are provided on the outer side of the adjustment part, and a fixing bolt is provided at the through hole of the adjustment part. The diameter of the through hole is larger than the diameter of the fixing bolt, and a screw hole adapted to the adjustment bolt is provided on the side wall of the adjustment part.
[0010] Furthermore, the base has a first threaded groove at the bottom end of the fixing bolt, and the fixing bolt is threadedly connected to the base at the first threaded groove.
[0011] Furthermore, the second guide edge is set on the Y-axis, and the bottom end of the adjustment part is provided with a second sliding groove that matches the second guide edge. The second guide edge is slidably connected to the adjustment part at the second sliding groove.
[0012] Furthermore, the first guide edge is set on the X-axis, and the base has a first sliding groove that matches the first guide edge, and the first guide edge is slidably connected to the base at the first sliding groove.
[0013] Furthermore, the guide block is in the shape of a parallelogram, with the first and second guide edges located at two adjacent edges on the guide block.
[0014] The beneficial effects of this utility model are as follows: This solution features a relatively movable base and an adjustment section, with a guide block positioned between them that provides two-way guidance. The guide block can move in one direction with the upper moving block and in the other direction with the lower moving block, allowing for simultaneous directional movement in both directions. Each direction utilizes two adjusting bolts, which are tightened and loosened alternately in the same direction to eliminate accuracy issues caused by misalignment. The angle of rotation is used to precisely measure the adjustment distance. Using this mechanism, after loosening the fixing bolts, precise directional adjustment of the adjustment section can be performed simultaneously in both directions, followed by tightening the fixing bolts. The structure is simple, low-cost, and eliminates misalignment during forward and reverse adjustments, resulting in higher adjustment accuracy and easier adjustment to the desired position. Attached Figure Description
[0015] Figure 1 This is a perspective view of a directional precision adjustment device according to Embodiment 1 of this application; Figure 2 This is a schematic diagram of the structure of a directional precision adjustment device according to Embodiment 1 of this application; Figure 3 This is a perspective view of the guide block of a directional precision adjustment device according to Embodiment 1 of this application; Figure 4 This is a perspective view of the base of a precision orientation adjustment device according to Embodiment 1 of this application; Figure 5 This is a bottom view of the adjustment section of a directional precision adjustment device according to Embodiment 1 of this application; Figure 6 This is a perspective view of the guide block of a directional precision adjustment device according to Embodiment 2 of this application.
[0016] Explanation of icon numbers: Base 1, first slide groove 101, first screw groove 102, second screw groove 103, adjustment part 2, second slide groove 201, through hole 202, fixing block 3, adjusting bolt 4, assembly bolt 5, fixing bolt 6, guide block 7, first guide edge 701, second guide edge 702. Detailed Implementation
[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the utility model.
[0018] Example 1 See attached document Figure 1-5 This application provides a directional precision adjustment device, including a base 1 and an adjustment part 2 for placing the part to be adjusted. A guide block 7 is provided between the base 1 and the adjustment part 2. The top and bottom ends of the guide block 7 are respectively provided with a first guide edge 701 and a second guide edge 702. The guide block 7 is slidably connected to the base 1 through the first guide edge 701 and slidably connected to the adjustment part 2 through the second guide edge 702. A plurality of adjustment bolts 4 are provided on the base 1. The adjustment bolts 4 push the adjustment part 2 to move by screwing themselves in.
[0019] Preferably, the top outer side of the base 1 is provided with several fixing blocks 3, and mounting bolts 5 are provided through both sides of the fixing block 3. The base 1 has a second threaded groove 103 at the bottom of the mounting bolt 5, and the bolt 5 is threaded to the base 1 at the second threaded groove 103. A horizontal waist-shaped hole is provided in the middle of the fixing block 3. The number of fixing blocks 3 and adjusting bolts 4 are the same and correspond one-to-one. The adjusting bolts 4 pass through the fixing blocks 3 at the waist-shaped hole.
[0020] Preferably, the adjusting part 2 has several through holes 202 on its outer side, and the adjusting part 2 has fixing bolts 6 at the through holes 202. The diameter of the through holes 202 is larger than the diameter of the fixing bolts 6. The side wall of the adjusting part 2 has screw holes that are compatible with the adjusting bolts 4. The base 1 has a first screw groove 102 at the bottom end of the fixing bolts 6, and the fixing bolts 6 are threadedly connected to the base 1 at the first screw groove 102.
[0021] Preferably, the second guide edge 702 is disposed on the Y-axis, and the bottom end of the adjusting part 2 is provided with a second sliding groove 201 that matches the second guide edge 702. The second guide edge 702 is slidably connected to the adjusting part 2 at the second sliding groove 201. The first guide edge 701 is disposed on the X-axis, and the base 1 is provided with a first sliding groove 101 that matches the first guide edge 701. The first guide edge 701 is slidably connected to the base 1 at the first sliding groove 101.
[0022] Working principle: The pitch of the four adjusting bolts 4 is Tmm. The two adjusting bolts 4 on the X-axis are bolt ① and bolt ② along the X-axis arrow direction, and the two adjusting bolts 4 on the Y-axis are bolt ③ and bolt ④ along the Y-axis arrow direction. The four bolts are tightened to the required torque during installation. The counterclockwise rotation of the adjusting bolts 4 is to retract, and the clockwise rotation is to advance. When a component needs to be adjusted in the X-direction and Y-direction, for example, moving Lmm in the X-direction and Kmm in the Y-direction, first loosen the four fixing bolts 6, then rotate bolt ① counterclockwise by an angle of L / T×360°, and at the same time rotate bolt ③ counterclockwise by an angle of K / T×360°. Then tighten bolts ② and ④ clockwise to the required tightening torque to complete the position adjustment in both directions. Finally, tighten the four fixing bolts 6 again. When a component needs to be adjusted in the X negative direction and Y negative direction, for example, moving Lmm in the X negative direction and Kmm in the Y negative direction, first loosen the four fixing bolts 6, then rotate bolt ② counterclockwise by an angle of L / T×360°, and at the same time rotate bolt ④ counterclockwise by an angle of K / T×360°. Then tighten bolts ① and ③ clockwise to the required tightening torque to complete the position adjustment in both directions. Finally, tighten the four fixing bolts 6 again. During the above adjustment process, since the first guide edge 701 is slidably connected to the base 1 at the first slide groove 101 and the second guide edge 702 is slidably connected to the adjustment part 2 at the second slide groove 201, the displacements generated by the adjustment part 2 in both the X-axis and Y-axis directions do not interfere with each other, thereby eliminating the error caused by the offset and making the adjustment more accurate.
[0023] Example 2 See attached document Figure 6This application provides a precise orientation adjustment device. Compared with the orientation position adjustment in two vertical directions (at 90 degrees) in Embodiment 1, in order to adjust the position in two directions at specific angles, the guide block 7 is in the shape of a parallelogram, and the first guide edge 701 and the second guide edge 702 are respectively located at two adjacent sides on the guide block 7.
[0024] Working principle: The rhomboid guide block 7 allows the first guide edge 701 and the second guide edge 702 to have a characteristic angle. Therefore, when the first slide groove 101 and the second slide groove 201 are adapted to the first guide edge 701 and the second guide edge 702 respectively, the first guide edge 701 and the second guide edge 702 can provide a specific angle, so that the two directions in which the adjustment part 2 can be adjusted are not limited to the X-axis and the Y-axis. After that, it is only necessary to set the adjustment bolt 4, which was originally located on the X-axis and the Y-axis, to a state perpendicular to the first guide edge 701 and the second guide edge 702 respectively, so that the adjustment part 2 can have an adjustment direction that moves along the first guide edge 701 and the second guide edge 702. The specific adjustment method is similar to the adjustment steps in Example 1, so it will not be repeated here.
[0025] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model shall be determined by the protection scope of the claims.
Claims
1. A directional precision adjustment device comprising a base (1) and an adjustment portion (2) for placing a part to be adjusted, characterized in that, A guide block (7) is provided between the base (1) and the adjustment part (2). The top and bottom ends of the guide block (7) are respectively provided with a first guide edge (701) and a second guide edge (702). The guide block (7) is slidably connected to the base (1) through the first guide edge (701) and slidably connected to the adjustment part (2) through the second guide edge (702). The base (1) is provided with a plurality of adjustment bolts (4). The adjustment bolts (4) move by pushing the adjustment part (2) by rotating themselves in.
2. A directional precision adjustment device according to claim 1, wherein, The base (1) has several fixing blocks (3) on the outer side of the top. The fixing blocks (3) are provided with mounting bolts (5) on both sides. The base (1) has a second threaded groove (103) at the bottom of the mounting bolts (5). The mounting bolts (5) are threaded to the base (1) at the second threaded groove (103).
3. A directional precision adjustment device according to claim 2, wherein, The fixing block (3) has a horizontal waist-shaped hole in the middle of the block body. The number of fixing blocks (3) and adjusting bolts (4) are the same and correspond one-to-one. The adjusting bolts (4) pass through the fixing blocks (3) at the waist-shaped hole.
4. A directional precision adjustment device according to claim 1, wherein, The adjustment part (2) has several through holes (202) on its outer side. The adjustment part (2) has a fixing bolt (6) at the through hole (202). The diameter of the through hole (202) is larger than the diameter of the fixing bolt (6). The side wall of the adjustment part (2) has a screw hole that matches the adjustment bolt (4).
5. A directional precision adjustment device according to claim 4, wherein, The base (1) has a first threaded groove (102) at the bottom end of the fixing bolt (6), and the fixing bolt (6) is threadedly connected to the base (1) at the first threaded groove (102).
6. A directional precision adjustment device according to claim 1, wherein, The second guide edge (702) is set on the Y-axis, and the bottom end of the adjustment part (2) is provided with a second slide groove (201) that is adapted to the second guide edge (702). The second guide edge (702) is slidably connected to the adjustment part (2) at the second slide groove (201).
7. The directional precision adjustment device according to claim 6, characterized in that, The first guide edge (701) is set on the X-axis, and the base (1) is provided with a first groove (101) that is adapted to the first guide edge (701). The first guide edge (701) is slidably connected to the base (1) at the first groove (101).
8. A directional precision adjustment device according to claim 1, wherein, The guide block (7) is a parallelogram, with the first guide edge (701) and the second guide edge (702) located at two adjacent sides of the guide block (7).