Height adjustment mechanism and level adjustment device

Abstract

The application provides a height adjusting mechanism and a horizontal adjusting device. The height adjusting mechanism is suitable for being installed between a fixed plate and a bearing plate, and is used for adjusting the distance between the fixed plate and the bearing plate. The height adjusting mechanism comprises a screw rod, a gasket and a fixing member. One end of the screw rod is screwed into a screw hole of the bearing plate, and the other end extends to the fixed plate and has an arc surface. The gasket is arranged between the screw rod and the fixed plate. The surface of the gasket facing the screw rod is in surface contact with the arc surface. The fixing member penetrates through the screw rod and the gasket and is fixed on the fixed plate. Through the height adjusting mechanism and the horizontal adjusting device, accurate and stable adjustment can be realized.

Description

Technical Field

[0001] This invention relates to an adjustment mechanism, and more particularly to a height adjustment mechanism and a level adjustment device. Background Technology

[0002] like Figure 1 As shown, the existing support platform 1 includes a fixed plate 11 and a support plate 12, and a height adjustment mechanism 13 is provided between the fixed plate 11 and the support plate 12. The height adjustment mechanism 13 includes a screw 131 and a nut 132. The distance between the support plate 12 and the fixed plate 11 can be adjusted by rotating the screw 131, and the height can be fixed by tightening the nut 132.

[0003] However, there is a certain gap between the internal and external threads of the screw 131 and the bearing plate 12. When the rotation angle of the screw 131 changes, causing the screw 131 to wobble, point contact will occur between the bottom surface of the screw 131 and the fixed plate 11. This will cause errors in the distance between the fixed plate 11 and the bearing plate 12 at different positions, resulting in the bearing plate 12 becoming skewed. Furthermore, after the distance between the fixed plate 11 and the bearing plate 12 is adjusted, fixing the screw 131 with the nut 132 will cause the screw 131 to rotate, causing the distance between the fixed plate 11 and the bearing plate 12 to change again, further affecting the height adjustment and adjustment accuracy of the bearing plate 12. Summary of the Invention

[0004] The purpose of this invention is to provide a height adjustment mechanism and a level adjustment device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides a height adjustment mechanism suitable for installation between a fixed plate and a support plate, used to adjust the distance between the fixed plate and the support plate. The height adjustment mechanism includes a screw, a washer, and a fixing member. One end of the screw is screwed into a screw hole in the support plate, and the other end extends towards the fixed plate and has an arcuate surface. The washer is disposed between the screw and the fixed plate, with the surface of the washer facing the screw abutting against the arcuate surface to form surface contact. The fixing member passes through the screw and the washer and is fixed to the fixed plate.

[0006] In one embodiment of the present invention, the surface of the gasket facing the screw is an arc surface or a conical surface that abuts against the arc surface.

[0007] The present invention also provides a horizontal adjustment device, which includes a fixed plate, a support plate disposed on one side of the fixed plate, and a plurality of the above-described height adjustment mechanisms. The height adjustment mechanisms are installed between the fixed plate and the support plate.

[0008] In one embodiment of the present invention, the above-described leveling device further includes a clamping mechanism. The clamping mechanism includes a slot and a clamping member. The slot extends through one side of the support plate and communicates with a screw hole. The clamping member passes through the slot from one side or the other side of the support plate, and is configured to reduce the width of the slot, causing deformation of the portion around the screw hole of the support plate, thereby clamping the screw rod screwed to one end of the support plate.

[0009] In one embodiment of the present invention, the aforementioned slot is an L-shaped slot, which includes a first slot segment and a second slot segment. The first slot segment extends from the side of the support plate along a first direction into the interior of the support plate, and the second slot segment extends from the end of the first slot segment located inside the support plate along a second direction and connects to the screw hole.

[0010] In one embodiment of the present invention, the aforementioned clamping member passes through the side of the support plate from the side of the support plate, reducing the width of the second groove segment, thereby reducing the width of the first groove segment in conjunction with it.

[0011] The present invention also provides another leveling device, which includes a fixed plate, a support plate disposed on one side of the fixed plate, a plurality of height adjustment mechanisms, and a clamping mechanism. Each height adjustment mechanism is installed between the fixed plate and the support plate and includes a screw and a fixing member. One end of the screw is screwed into a screw hole in the support plate, and the other end extends to the fixed plate and abuts against the fixed plate. The fixing member passes through the screw and is fixed to the fixed plate. The clamping mechanism includes a slot and a clamping member. The slot passes through the side of the support plate and communicates with the screw hole. The clamping member passes through the slot from one side or the other side of the support plate and is configured to reduce the width of the slot, causing deformation of the portion around the screw hole in the support plate, thereby clamping the screw screw at one end of the support plate.

[0012] In one embodiment of the present invention, the aforementioned slot is an L-shaped slot, which includes a first slot segment and a second slot segment. The first slot segment extends from the side of the support plate along a first direction into the interior of the support plate, and the second slot segment extends from the end of the first slot segment located inside the support plate along a second direction and connects to the screw hole.

[0013] In one embodiment of the present invention, the aforementioned clamping member passes through the side of the support plate from the side of the support plate, reducing the width of the second groove segment, thereby reducing the width of the first groove segment in conjunction with it.

[0014] In one embodiment of the present invention, the surface of the screw that abuts against the fixing plate is an arc surface or a conical surface.

[0015] As described above, the horizontal adjustment device provided by this invention mainly consists of a height adjustment mechanism where one end of a screw is screwed into a screw hole in a support plate, and the other end has an arc surface. A shim is placed between the screw and the fixed plate. This design effectively prevents the screw from wobbling during rotation, thereby reducing distance errors caused by wobbling and improving the accuracy of the adjustment process. Furthermore, this invention does not use a nut to fix the screw; instead, it utilizes a clamping mechanism to secure the screw in the screw hole of the support plate, thus ensuring the stability of the adjustment accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the existing support platform.

[0017] Figure 2 This is a schematic diagram of a horizontal adjustment device according to one embodiment of the present invention.

[0018] Figure 3 It is along Figure 2 A schematic diagram of a cross-section cut by the AA section line.

[0019] Figure 4 yes Figure 3 The enlarged view of the area selected by the dashed box.

[0020] Figure 5 yes Figure 2 The top view.

[0021] Figure 6A This is a front view of a horizontal correction device according to one embodiment of the present invention.

[0022] Figure 6B This is a perspective view of a horizontal correction device according to one embodiment of the present invention.

[0023] Figure 7A This is a front view of a horizontal correction device in its jacking state according to one embodiment of the present invention.

[0024] Figure 7B This is a three-dimensional schematic diagram of the lifting state of a horizontal correction device according to one embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of a calibration fixture according to one embodiment of the present invention.

[0026] Figure 9 It is along Figure 8 A schematic diagram of a cross-section cut by the BB section line.

[0027] Figure 10 This is a flowchart of a horizontal correction method according to one embodiment of the present invention. Detailed Implementation

[0028] To make the above and other objects, features, and advantages of the present invention more apparent and understandable, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Furthermore, the directional terms used in this invention, such as up, down, top, bottom, front, back, left, right, inside, outside, side, surrounding, center, horizontal, transverse, vertical, longitudinal, axial, radial, uppermost, or lowermost, are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustrating and understanding the present invention, and not for limiting the present invention.

[0029] This invention provides a height adjustment mechanism suitable for installation between a fixed plate and a support plate, for precisely adjusting the distance between the two, thereby adjusting the levelness of the support plate. This height adjustment mechanism can be applied to various devices that require precise adjustment of the spacing between components, such as leveling devices.

[0030] like Figure 2 As shown, the horizontal adjustment device 2 includes a fixed plate 21, a support plate 22 disposed on one side of the fixed plate 21, and a plurality of height adjustment mechanisms 23. These height adjustment mechanisms 23 are installed at different positions between the fixed plate 21 and the support plate 22. Figure 2 In the illustrated embodiment, four height adjustment mechanisms 23 are provided, located at the four corners of the fixed plate 21 and the support plate 22, respectively. In other embodiments, the number and installation position of the height adjustment mechanisms 23 can be adjusted as needed. In some embodiments, the horizontal adjustment device 2 further includes a clamping mechanism 24, the position of which corresponds to the height adjustment mechanism 23, for restricting the movement of the height adjustment mechanism 23 after the distance between the fixed plate 21 and the support plate 22 has been adjusted.

[0031] Please refer to Figure 3 and Figure 4The height adjustment mechanism 23 includes a screw 231, a washer 232, and a fixing member 233. One end of the screw 231 is screwed into a screw hole 22a in the support plate 22, and the other end extends toward the fixing plate 21 and has an arc surface 231a (also referred to as a spherical surface). The washer 232 is disposed between the screw 231 and the fixing plate 21, and the surface 232a of the washer facing the screw 231 abuts against the arc surface 231a of the screw 231 to form a surface contact. The fixing member 233 passes through the screw 231 and the washer 232 and is fixed to the fixing plate 21 to fix the screw 231. In one embodiment, the surface 232a of the washer 232 that contacts the screw 231 can be an arc surface (also referred to as a spherical surface) or a conical surface. By rotating the screw 231, the distance between the fixing plate 21 and the support plate 22 can be adjusted. During the rotation of the screw 231, the washer 232 absorbs the runout of the screw 231, maintaining its stable rotation. Specifically, when the screw 231 is screwed into or out of the screw hole 22a of the bearing plate 22, the distance between the bearing plate 22 and the fixed plate 21 changes. The design of the washer 232 ensures stable surface contact between the arc surface 231a of the screw 231 and the surface 232a of the washer 232, evenly distributing the rotational force and reducing the runout generated during the rotation of the screw 231. This maintains the screw 231's stable rotation along its axis, reduces distance errors caused by runout, and improves the accuracy during adjustment.

[0032] In other embodiments, the shim 232 can be omitted, and the arc surface 231a of the screw 231 directly abuts against the surface of the fixing plate 21. This design ensures that even if the screw 231 wobbles or tilts during rotation, the arc surface contact design can effectively reduce errors caused by the wobble or friction of the screw 231, and improve the accuracy and stability of the adjustment process to a certain extent.

[0033] like Figure 5 As shown, the clamping mechanism 24 includes a slot 241 and a clamping member 242. The slot 241 extends through the side 221 of the support plate 22 and communicates with the screw hole 22a. The clamping member 242 passes through the slot 241 from the side 221 of the support plate 22 and is configured to reduce the width of the slot 241. Specifically, the design of the slot 241 cuts the support plate 22 into a slot, allowing some of the structure around the screw hole 22a of the support plate 22 to deform. When the clamping member 242 is tightened, the width of the slot 241 is further reduced, thereby deforming the structure around the screw hole 22a, thus clamping the screw 231 and fixing it stably in the screw hole 22a of the support plate 22.

[0034] exist Figure 5In this embodiment, the slot 241 is an L-shaped slot, comprising a first slot segment 241a and a second slot segment 241b. The first slot segment 241a extends from the side surface 221 of the support plate 22 along a first direction into the interior of the support plate 22. The second slot segment 241b extends from the end of the first slot segment 241a located inside the support plate along a second direction and communicates with the screw hole 22a. The first direction is perpendicular to the side surface 221 of the support plate 22, and the second direction is parallel to the side surface 221. The clamping member 242 passes through the side surface 221 of the support plate 22 and locks into the second slot segment 241b to reduce the width of the second slot segment 241b, thereby reducing the width of the first slot segment 241a. In other embodiments, the clamping member 242 may also pass through the support plate 22 from the other side (such as side 222) and lock into the first groove segment 241a to reduce the width of the first groove segment 241a, thereby reducing the width of the second groove segment 241b in conjunction with the reduction of the width of the second groove segment 241b.

[0035] It should be noted that the aforementioned clamping mechanism 24 is used in conjunction with, for example... Figures 2 to 4 The height adjustment mechanism 23 shown is used to achieve optimal precision adjustment and fixation. However, in other embodiments, the clamping mechanism 24 may also be used, for example... Figure 1 The height adjustment mechanism 13 shown solves the problem in the prior art where the method of fixing the screw 131 with the nut 132 may cause the screw to rotate and affect accuracy. It should be particularly noted that... Figure 1 The conventional technology shown uses a nut 132 to fix the screw 131, which is an axial locking method. Therefore, it will affect the final distance and accuracy of the screw 131, which is also adjusted by axial rotation. However, the clamping mechanism 24 used in this case is radially fixed relative to the screw 231. For the axial adjustment of the screw 231, it is an independent directional system. Therefore, it can achieve the effect of not affecting the final distance and adjustment accuracy of the screw 231.

[0036] Please refer to Figures 2 to 4The adjustment method of the leveling device 2 is as follows: First, the height adjustment mechanism 13 is connected between the support plate 22 and the fixed plate 21. Next, by rotating the screw 231, the depth to which the screw 231 is screwed into the support plate 22 is changed, thereby adjusting the height of the support plate 22 relative to the fixed plate 21. During the adjustment process, the design of the shim 232 ensures a stable surface contact between the arc surface 231a of the screw 231 and the surface 232a of the shim 232, effectively reducing the wobble of the screw 231 and maintaining stable rotation of the screw 231 along its axis. Since the screw depths of the screws 231 located at the four corners of the support plate 22 may not be completely consistent, the levelness of the support plate 22 can be checked visually or using a level, and the corresponding screws 231 can be further adjusted as needed until the support plate 22 reaches a horizontal position parallel to the fixed plate 21. Once the support plate 22 reaches the required height, the clamping mechanism 24 is used to fix the screw 231, ensuring that the screw 231 does not loosen, thereby maintaining the adjustment accuracy.

[0037] In some embodiments, for example, can be utilized Figure 6A and Figure 6B The leveling device 3 shown assists the operation of the leveling device 2 to achieve more precise leveling. The leveling device 3 includes a platform frame 31, a leveling fixture 4, and a lifting device 5. The leveling fixture 4 is located at the top of the platform frame 31 and is used to measure the levelness of the object to be leveled (e.g., the leveling device 2). The lifting device 5 is located below the platform frame 31 and is used to support the leveling device 2 and control the raising and lowering of the leveling device 2 relative to the leveling fixture 4. For example, the leveling device 2 can be lifted from... Figure 6A and Figure 6B The initial position rose to Figure 7A and Figure 7B The location.

[0038] Specifically, such as Figure 8 and Figure 9As shown, the calibration fixture 4 includes a reference platform 41, a plurality of extension rods 42, and a plurality of depth gauges 43. The reference platform 41 has a plurality of through holes 41a passing through its top surface. The number of extension rods 42 corresponds to the number of through holes 41a, and each extension rod 42 is movably inserted into a corresponding through hole 41a and extends beyond the bottom surface of the reference platform 41. The number and position of the depth gauges 43 correspond to the number and position of the through holes 41a, wherein each depth gauge 43 has a probe 431, and each probe 431 abuts against the top surface of the corresponding extension rod 42. In one embodiment, each extension rod 42 has a head 421 and a rod portion 422 connected to the head 421. The cross-sectional area of ​​the head 421 is larger than the opening area of ​​the through hole 41a and is located on the top surface of the reference platform 41, thereby preventing the extension rod 42 from detaching from the reference platform 41. The outer diameter of the rod portion 422 is smaller than the size of the through hole 41a, so it can pass through the through hole 41a and move up and down within the through hole 41a. Furthermore, since the probe 431 abuts against the top surface of the corresponding extension rod 42, when the extension rod 42 moves up and down, it will correspondingly push the probe 431 to move up and down, thereby changing the reading of the depth gauge 43.

[0039] Please refer to the above as well. Figures 6A to 7B The platform frame 31 has a hollow area 31a and a mounting portion 31b at the top, with the surface of the mounting portion 31b being a horizontal plane. A calibration fixture 4 is disposed at the top of the platform frame 31 and locked to the mounting portion 31b to ensure that the reference platform 41 of the calibration fixture 4 remains horizontal. An extension rod 42 of the calibration fixture 4 extends to the hollow area 31a and faces the object to be calibrated (e.g., the leveling device 2) located on the lifting device 5. For example... Figure 8 As shown, in one embodiment, the side of the reference platform 41 is provided with multiple recessed structures 41b. When the calibration fixture 4 is installed on the leveling device 3, these recessed structures 41b correspond to multiple height adjustment mechanisms 23 of the object to be calibrated (e.g., the leveling device 2), allowing the height adjustment mechanisms 23 to be exposed, thereby providing sufficient operating space to facilitate adjusting the distance between the support plate 22 and the fixed plate 21. Specifically, in one embodiment, the four height adjustment mechanisms 23 are located at the four corners of the support plate 22, therefore, the recessed structures 41b can be provided near the four corners of the reference platform 41 to correspond to the corresponding height adjustment mechanisms 23.

[0040] The lifting device 5 includes a motor 51, a transmission mechanism 52, and a supporting structure 53. The supporting structure 53 is used to limit the object to be corrected and is connected to the transmission mechanism 52. The motor 51 can drive the transmission mechanism 52 to control the lifting of the supporting structure 53 within the hollow area 31a. In this embodiment, the transmission mechanism 52 is a screw connected to the motor 51, and the supporting structure 53 includes several guide rods 531 and a lifting platform 532. The lifting platform 532 is connected to the transmission mechanism 52, the guide rods 531 are disposed on the lifting platform 532, and the fixing plate 21 of the horizontal adjustment device 2 can be fixed to the guide rods 531 by locking. Thus, the motor 51 can drive the screw to rotate, thereby driving the lifting platform 532 to rise and fall, so that the horizontal adjustment device 2 can move relative to the correction fixture 4.

[0041] Please also refer to Figure 10 The following describes a method for performing horizontal correction using the aforementioned horizontal correction device 3. Method S1 includes the following steps: First, step S11 is performed, zeroing each depth gauge 43 of the correction fixture 4. Next, step S12 is performed as follows... Figure 6A and Figure 6B As shown, the object to be corrected (e.g., the leveling device 2) is fixed to the support structure 53. Specifically, the fixing plate 21 of the leveling device 2 can be locked and fixed to the guide rod 531 of the support structure 53.

[0042] Then, proceed to step S13, as follows: Figure 7A and Figure 7B As shown, the control motor 51 drives the support structure 53 to lift via the transmission mechanism 52 until the top surface of the object to be corrected (e.g., the top surface of the support plate 22 of the leveling device 2) contacts one or more extension rods 42 of the correction fixture 4. In some cases, when the support plate 22 is in a non-level state such as tilting, the top surface of the support plate 22 may not contact all the extension rods 42; or even if the top surface of the support plate 22 contacts all the extension rods 42, the readings of each depth gauge 43 may be different. Therefore, it is necessary to adjust the level of the object to be corrected (e.g., the leveling device 2) using the height adjustment mechanism 23 by performing step S14 until the readings of each depth gauge 43 of the correction fixture 4 are consistent. In step S14, the height of the support plate 22 relative to the fixed plate 21 can be adjusted by rotating one or more of the screws 231. During the adjustment process, as the screws 231 rotate, the horizontal position of the support plate 22 changes, which in turn affects the displacement of the extension rods 42, causing the readings of the depth gauges 43 to change. Therefore, by adjusting screw 231 until the readings of each depth gauge 43 are consistent, it can be confirmed that the position of the bearing plate 22 has reached the required level.

[0043] In one embodiment, the bottom surface of the rod portion 422 of the extension rod 42 can be an arc surface or a conical surface. Therefore, when the bearing plate 22 rises and its top surface contacts the bottom surface of the rod portion 422, uniform contact surface pressure can be achieved, enabling a more accurate correction process.

[0044] After completing step S14, proceed to step S15, using clamping mechanism 24 to fix screw 231, ensuring that screw 231 will not loosen, thereby maintaining adjustment accuracy. Specifically, as follows... Figure 5 As shown, once the bearing plate 22 is confirmed to be at the required level, the clamping member 242 can be locked into the slot 241 of the bearing plate 22, thereby reducing the width of the slot 241 and causing the structure around the screw hole 22a of the bearing plate 22 to deform, thereby fixing the position of the screw 231 and ensuring its stability.

[0045] As can be seen from the above embodiments of the present invention, the leveling device provided by the present invention mainly uses a height adjustment mechanism where one end of the screw is screwed into the screw hole of the support plate, and the other end has an arc surface, with a shim placed between the screw and the fixed plate. This design can effectively prevent the screw from wobbling during rotation, thereby reducing the distance error caused by wobbling and improving the accuracy during the adjustment process. Furthermore, the present invention does not use a nut to fix the screw, but uses a clamping mechanism to stably fix the screw in the screw hole of the support plate, thereby ensuring the stability of accuracy during the adjustment process. Further, the leveling device of the present invention can be used in conjunction with a leveling device, using a leveling fixture on the leveling device to assist in the leveling of the support plate, ensuring that it reaches the required precise level.

[0046] Although the present invention has been disclosed with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A height adjustment mechanism, suitable for installation between a fixed plate and a supporting plate, for adjusting the distance between the fixed plate and the supporting plate, characterized in that, The height adjustment mechanism includes: A screw, one end of which is screwed into a screw hole in the bearing plate, and the other end extends toward the fixing plate and has an arc surface; A washer is disposed between the screw and the fixing plate, the surface of the washer facing the screw abutting against the arcuate surface to form surface contact; and A fastener passes through the screw and the washer and is fixed to the fixing plate.

2. The height adjustment mechanism as described in claim 1, characterized in that, The surface of the gasket facing the screw is an arc surface or a conical surface that abuts against the arc surface.

3. A leveling device, characterized in that, The horizontal adjustment device includes a fixed plate, a support plate disposed on one side of the fixed plate, and a plurality of height adjustment mechanisms as described in claim 1, which are installed between the fixed plate and the support plate.

4. The leveling device as described in claim 3, characterized in that, The horizontal adjustment device further includes a clamping mechanism, wherein the clamping mechanism comprises: A slot is cut through one side of the support plate and communicates with the screw hole; and A clamping member is inserted through the slot from one side or the other side of the support plate, configured to reduce the width of the slot, causing deformation of the portion around the screw hole of the support plate, thereby clamping the screw to one end of the support plate.

5. The leveling device as described in claim 4, characterized in that, The slot is an L-shaped slot, which includes a first slot segment and a second slot segment. The first slot segment extends from the side of the support plate along a first direction into the interior of the support plate, and the second slot segment extends from the end of the first slot segment located inside the support plate along a second direction and connects to the screw hole.

6. The leveling device as described in claim 5, characterized in that, The clamping member passes through the side of the support plate, reducing the width of the second groove segment, thereby reducing the width of the first groove segment in conjunction with it.

7. A leveling device, characterized in that, The horizontal adjustment device includes a fixed plate, a bearing plate disposed on one side of the fixed plate, a plurality of height adjustment mechanisms, and a clamping mechanism, wherein: Each of the height adjustment mechanisms is installed between the fixed plate and the support plate and includes a screw and a fixing member, wherein one end of the screw is screwed into a screw hole in the support plate, and the other end extends to the fixed plate and abuts against the fixed plate, and the fixing member passes through the screw and is fixed to the fixed plate; and The clamping mechanism includes: A slot is cut through one side of the support plate and communicates with the screw hole; and A clamping member is inserted through the slot from one side or the other side of the support plate, configured to reduce the width of the slot, causing deformation of the portion around the screw hole of the support plate, thereby clamping the screw to one end of the support plate.

8. The leveling device as described in claim 7, characterized in that, The slot is an L-shaped slot, which includes a first slot segment and a second slot segment. The first slot segment extends from the side of the support plate along a first direction into the interior of the support plate, and the second slot segment extends from the end of the first slot segment located inside the support plate along a second direction and connects to the screw hole.

9. The leveling device as described in claim 8, characterized in that, The clamping member passes through the side of the support plate, reducing the width of the second groove segment, thereby reducing the width of the first groove segment in conjunction with it.

10. The leveling device as described in claim 7, characterized in that, The surface of the screw that abuts against the fixing plate is an arc surface or a conical surface.

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