A bidirectional correction structure

Abstract

This invention relates to the field of calibration equipment technology, specifically to a bidirectional calibration structure. A reference body and a stop block are connected to both ends of an upper base, with a clamping assembly connected to the stop block. A Y-axis adjustment assembly is fixedly connected to a lower base, and an X-axis adjustment assembly is fixedly connected to the upper base. The part to be calibrated is connected to an adjustment block. The clamping assembly applies a directional thrust to the adjustment block, causing the inclined surface of the block to fit tightly against the inclined surface of the body. The clamping assembly is then locked to ensure the adjustment block is parallel to the reference body. The Y-axis adjustment assembly then pushes the upper base to move along the plane parallel to the upper base, causing the upper base and adjustment block to move synchronously. The upper and lower bases are then locked to ensure a fixed connection. The X-axis adjustment assembly then pushes the adjustment block to move along the plane parallel to the upper base, and the reference body and stop block are locked again, causing the inclined surface of the block to clamp tightly against the inclined surface of the body, thus locking the adjustment block and achieving multi-directional high-precision adjustment and calibration.

Description

Technical Field

[0001] This invention relates to the field of calibration equipment technology, and more particularly to a bidirectional calibration structure. Background Technology

[0002] In existing machining and manufacturing processes, such as the adjustment and correction of bearing structures, especially those used in precision equipment, high requirements are placed on horizontal and vertical accuracy. This is particularly evident in the need for exceptional precision in two orthogonal 90° directions. Traditional bearing adjustment structures are no longer sufficient to meet these requirements. Existing technologies, for example, include Chinese patent documents CN107654507B, which discloses a bearing housing horizontal positioning adjustment device; CN201720866432.X, which discloses an adjustable bidirectional bearing housing for textile machinery; and CN20171021570. CN201720866432.X discloses an adjustable bidirectional bearing housing for textile machinery; CN201820333215.9 discloses a novel bidirectional backlash-free device for adjusting roller screws; and CN201720732054.6 discloses a novel adjustable bearing housing. However, these technologies either only allow for single-direction adjustment based on the rollers or lack precision when adjusting in multiple directions, failing to guarantee good levelness for components such as rollers and worktables during use. Summary of the Invention

[0003] In view of this, the purpose of this invention is to propose a bidirectional correction structure to solve the problem of the inability to adjust and correct with high precision in multiple directions.

[0004] To achieve the above objectives, the present invention provides a bidirectional correction structure, including an adjustment block for connecting the component to be corrected, and further comprising:

[0005] The lower base is connected to the upper base. The upper base is connected to a reference body and a stop block at both ends. The reference body and the stop block can only move up and down in the vertical direction of the plane of the upper base. The top of the adjusting block has a block slope, and the top of the reference body near the adjusting block has a body slope.

[0006] The clamping component is connected to the stop block. The clamping component provides directional thrust to the adjusting block so that the inclined surface of the block fits tightly against the inclined surface of the body.

[0007] The Y-axis adjustment assembly is fixedly connected to the lower base and is used to push the upper base to move along the plane parallel to the upper base.

[0008] The X-axis adjustment assembly is fixedly connected to the upper base and is used to push the adjustment block to move in a direction parallel to the plane of the upper base. The pushing directions of the X-axis adjustment assembly and the Y-axis adjustment assembly are perpendicular to each other.

[0009] Preferably, the reference body is connected to the upper base through a first positioning pin, and the reference body has first through holes at both ends, and is fixedly connected to the upper base through the first through holes by first bolts.

[0010] Preferably, a U-shaped groove is provided in the middle of the side of the reference body near the adjustment block.

[0011] Preferably, the stop block is connected to the upper base by a second positioning pin, and a second through hole is provided at both ends of the stop block. The second through hole is fixedly connected to the upper base by a second bolt.

[0012] Preferably, a tightening screw hole is provided on the side end of the stop block, and the tightening component is a tightening bolt that is engaged with the tightening screw hole. One end of the tightening bolt passes through the tightening screw hole and abuts against the adjusting block.

[0013] Preferably, the Y-axis adjustment assembly includes a Y-axis adjustment bracket with a Y-axis adjustment bolt connected to it, and the X-axis adjustment assembly includes an X-axis adjustment bracket with an X-axis adjustment bolt connected to it.

[0014] Preferably, the top of the adjusting block has a groove for connecting the part to be calibrated, the side of the adjusting block has an elliptical groove for inserting the Y-axis adjusting bolt and an X-axis adjusting screw hole for inserting the X-axis adjusting bolt, and the adjusting block has a recessed hole for inserting the tightening component on the side of the elliptical groove.

[0015] Preferably, the top of the adjusting block is provided with a step, and the top of the stop block near the adjusting block is provided with a pressing angle.

[0016] Preferably, the upper base has a first elliptical hole and a second elliptical hole at both ends, and the lower base has a first screw hole and a second screw hole at both ends opposite to each other. A first fixing bolt passes through the first elliptical hole and the second elliptical hole and is fixed with the first screw hole and the second screw hole.

[0017] Preferably, the upper base has a third elliptical hole at each of its two ends, and the lower base has a first countersunk hole and a second countersunk hole at each of its two ends. The third elliptical hole, the first countersunk hole, and the second countersunk hole are passed through by a second fixing bolt and fixed to the end plane of the equipment.

[0018] The beneficial effects of this invention are as follows: A reference body and a stop are respectively connected to both ends of the upper base. The reference body and the stop move up and down only along the vertical direction of the plane of the upper base. A block inclined surface is provided on one side of the top of the adjusting block, and a body inclined surface is provided on the top of the side of the reference body near the adjusting block. A clamping component is connected to the stop. A Y-axis adjusting component is fixedly connected to the lower base, and an X-axis adjusting component is fixedly connected to the upper base. The pushing directions of the X-axis adjusting component and the Y-axis adjusting component are perpendicular. In use, the part to be corrected is connected through the adjusting block, and the clamping component provides the necessary force. The adjusting block is directionally thrust to ensure that the inclined surface of the block fits tightly against the inclined surface of the body, and the locking and clamping assembly is tightened to ensure that the adjusting block is parallel to the reference body. Then, the upper base is moved along the plane parallel to the upper base by the Y-axis adjusting assembly, and the upper base and adjusting block are moved synchronously. Then, it is locked to fix the upper base and lower base. Then, the adjusting block is moved along the plane parallel to the upper base by the X-axis adjusting assembly, and the reference body and stop are locked. The inclined surface of the block and the inclined surface of the body are tightly clamped, which achieves the function of locking the adjusting block and realizing the function of multi-directional high-precision adjustment and correction. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a top view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the reference body of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the bottom end of the reference body of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the stop block of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the bottom end of the stop block of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the lower base of the present invention;

[0027] Figure 8 This is a schematic diagram of the upper base of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the adjusting block of the present invention;

[0029] Figure 10 This is a schematic diagram of the Y-axis adjustment bracket of the present invention;

[0030] Figure 11 This is a schematic diagram of the Y-axis adjusting bolt of the present invention;

[0031] Figure 12 This is a schematic diagram of the X-axis adjustment bracket of the present invention;

[0032] Figure 13 This is a schematic diagram of the tightening bolt of the present invention.

[0033] The diagram is marked as follows:

[0034] 1. Adjusting block; 2. Reference body; 21. First locating pin; 22. First through hole; 23. First machined hole; 24. Reference surface; 25. U-shaped groove; 26. Body inclined surface; 3. Stop block; 31. Second locating pin; 32. Second through hole; 33. Second machined hole; 34. Tightening screw hole; 35. Y-axis adjusting screw hole; 36. Pressure angle; 4. Tightening bolt; 41. Internal hexagon; 42. Nut; 43. First screw; 51. Y-axis adjusting bolt; 510. External hexagon; 520. Slot; 530. Step; 540. Second screw; 52. X-axis adjusting bolt; 6. Y-axis adjusting bracket; 61. First through hole; 62. First adjusting groove; 7. X-axis adjusting bracket; 7 1. Second through hole; 72. Second adjusting groove; 8. Upper base; 81. Second positioning hole; 82. Fourth screw hole; 83. First positioning hole; 84. Third screw hole; 85. Third elliptical hole; 86. Sixth screw hole; 87. First elliptical hole; 88. Second elliptical hole; 9. Lower base; 91. Fifth screw hole; 92. First screw hole; 93. First countersunk hole; 94. Second countersunk hole; 95. Second screw hole; 101. First bolt; 102. Second bolt; 11. Elliptical groove; 12. Concave hole; 13. Third machined hole; 14. X-axis adjusting screw hole; 15. Groove; 16. Step; 17. Beveled block; 18. First fixing bolt; 19. Second fixing bolt. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0036] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] like Figures 1 to 13 As shown, a bidirectional correction structure includes an adjusting block 1 for connecting the part to be corrected, and a lower base 9. An upper base 8 is connected to the lower base 9. A reference body 2 and a stop block 3 are respectively connected to both ends of the upper base 8. The reference body 2 and the stop block 3 can only move up and down in the vertical direction of the plane of the upper base 8. A block inclined surface 17 is provided on one side of the top of the adjusting block 1. A body inclined surface 26 is provided on the top of the side of the reference body 2 near the adjusting block 1. A clamping component is connected to the stop block 3. The clamping component provides a directional thrust to the adjusting block 1 so that the block inclined surface 17 and the body inclined surface 26 fit tightly together. A Y-axis adjusting component is fixedly connected to the lower base 9 for pushing the upper base 8 to move in the direction parallel to the plane of the upper base 8. An X-axis adjusting component is fixedly connected to the upper base 8 for pushing the adjusting block 1 to move in the direction parallel to the plane of the upper base 8. The pushing directions of the X-axis adjusting component and the Y-axis adjusting component are perpendicular to each other.

[0038] This invention includes an adjusting block 1 for connecting the part to be calibrated, and a lower base 9. An upper base 8 is connected to the lower base 9. Preferably, the upper base 8 and lower base 9 are tightly and parallelly connected. A reference body 2 and a stop block 3 are respectively connected to both ends of the upper base 8. The reference body 2 and stop block 3 only move vertically along the plane of the upper base 8. A block inclined surface 17 is provided on one side of the top of the adjusting block 1, and a body inclined surface 26 is provided on the top of the side of the reference body 2 near the adjusting block 1. The block inclined surface 17 and body inclined surface 26 have the same angle to achieve better engagement. A clamping component is connected to the stop block 3. A Y-axis adjusting component is fixedly connected to the lower base 9, and an X-axis adjusting component is fixedly connected to the upper base 8. The pushing directions of the X-axis adjusting component and the Y-axis adjusting component are perpendicular. The adjustment block 1 is connected to the part to be calibrated, which can be a metal or non-metal roller, such as a bearing roller. The adjusting block 1 is given a directional thrust through the clamping assembly so that the block inclined surface 17 and the body inclined surface 26 are tightly fitted. The clamping assembly is locked to ensure that the adjusting block 1 is parallel to the reference body 2. Then, the upper base 8 is pushed to move along the plane parallel to the plane of the upper base 8 through the Y-axis adjustment assembly. The upper base 8 and the adjusting block 1 move synchronously. Then, they are locked to fix the upper base 8 and the lower base 9. Then, the adjusting block 1 is pushed to move along the plane parallel to the plane of the upper base 8 through the X-axis adjustment assembly. Then, the reference body 2 and the stop block 3 are locked. The block inclined surface 17 and the body inclined surface 26 are tightly clamped to achieve the function of locking the adjusting block 1. Thus, the function of multi-directional high-precision adjustment and calibration is realized.

[0039] In an embodiment of the present invention, the reference body 2 is connected to the upper base 8 via a first positioning pin 21. The reference body 2 has first through holes 22 at both ends. The first through holes 22 are fixedly connected to the upper base 8 via first bolts 101. Specifically, the upper base 8 has a first positioning hole 83 corresponding to the first positioning pin 21 and a third screw hole 84 corresponding to the first bolt 101. In the initial state, the first bolt 101 and the third screw hole 84 are loosened. The first positioning pin 21 plays a limiting role. Due to the no-deviation design, the reference body 2 can only move up and down along the vertical direction of the plane of the upper base 8. It cannot move in the plane. That is, the direction of the reference body 2 does not change.

[0040] Optionally, the top of the reference body 2 is provided with a first machining hole 23. The first machining hole 23 is used to remove the first positioning pin 21 from the reference body 2. The first positioning pin 21 can be removed by inserting a hard, thin stick into the first machining hole 23 and applying force.

[0041] The upper base 8 has a reference surface 24 on its side for tightly attaching the adjustment block 1. The inclined surface 26 is located at the top of the reference surface 24, and the reference surface 24 and the inclined surface 26 form an angle of 105° to 165°.

[0042] A U-shaped groove 25 is provided in the middle of the side of the reference body 2 near the adjusting block 1. The U-shaped groove 25 is used to observe the sinking amount of the adjusting block 1 and whether the inclined surface 26 of the body is in complete contact with the adjusting block 1 without gaps, thus playing the role of reference positioning. The first bolt 101 can also apply a downward pressure to the adjusting block 1 to make the adjusting block 1 flush.

[0043] In an embodiment of the present invention, the stop block 3 is connected to the upper base 8 by the second positioning pin 31, and the stop block 3 has a second through hole 32 at both ends, and is fixedly connected to the upper base 8 by the second bolt 102 at the second through hole 32.

[0044] Specifically, the upper base 8 is provided with a second positioning hole 81 corresponding to the second positioning pin 31, and a fourth screw hole 82 corresponding to the second bolt 102. In the initial state, the second bolt 102 is loosely connected to the fourth screw hole 82, and the second positioning pin 31 plays a limiting role. Due to the no-deviation design, the stop block 3 can only move up and down along the vertical direction of the plane of the upper base 8, and cannot move in the plane. That is, the direction of the stop block 3 never changes.

[0045] Optionally, the top of the stop 3 is provided with a second machining hole 33. The second machining hole 33 has the same function as the first machining hole 23, both of which are used to disassemble the positioning pin.

[0046] In an embodiment of the present invention, a tightening screw hole 34 is provided on the side end of the stop block 3. The tightening component is a tightening bolt 4 that is engaged with the tightening screw hole 34. One end of the tightening bolt 4 passes through the tightening screw hole 34 and abuts against the adjusting block 1. By turning the tightening bolt 4, a directional thrust is given to the adjusting block 1 so that the block inclined surface 17 and the body inclined surface 26 are tightly fitted. Specifically, the tightening bolt 4 includes an internal hexagon 41, a nut 42, and a first screw 43. The internal hexagon 41 is used to provide a larger torque for bearing force. The nut 42 assists in thread fixation and prevents loosening when tightened. The first screw 43 is used to implement the force, that is, to advance the adjusting block 1.

[0047] In an embodiment of the present invention, the Y-axis adjustment assembly includes a Y-axis adjustment bracket 6, on which a Y-axis adjustment bolt 51 is connected; the X-axis adjustment assembly includes an X-axis adjustment bracket 7, on which an X-axis adjustment bolt 52 is connected. Specifically, the Y-axis adjustment bolt 51 includes an external hexagonal head 510, a slot 520, a step 530, and a second screw 540. A fifth screw hole 91 is provided on the lower base 9, and a first through hole 61 corresponding to the fifth screw hole 91 is provided at the bottom end of the Y-axis adjustment bracket 6. The top end is provided with a first adjustment groove 62 connected to the Y-axis adjustment bolt 51. By rotating the outer hexagon 510, the displacement of the second screw 540 is driven, thereby realizing the adjustment in the Y-axis direction. The structure and function of the X-axis adjustment bracket 7 are similar to those of the Y-axis adjustment bracket 6, but their installation positions are different. A sixth screw hole 86 is provided on the upper base 8. A second through hole 71 corresponding to the sixth screw hole 86 is provided at the bottom end of the X-axis adjustment bracket 7. The top end of the X-axis adjustment bracket 7 is provided with a second adjustment groove 72 connected to the X-axis adjustment bolt 52, thereby realizing the adjustment in the X-axis direction.

[0048] In an embodiment of the present invention, the top end of the adjusting block 1 is provided with a groove 15 for connecting the part to be calibrated, and the side end of the adjusting block 1 is provided with an elliptical groove 11 for inserting the Y-axis adjusting bolt 51 and an X-axis adjusting screw hole 14 for inserting the X-axis adjusting bolt 52. The X-axis adjusting screw hole 14 is used to engage with the X-axis adjusting bolt 52 to implement displacement adjustment in the X-axis direction. When the X-axis adjusting bolt 52 is adjusted, the elliptical groove 11 provides sufficient space for the displacement of the Y-axis adjusting bolt 51. The adjusting block 1 is provided with a recessed hole 12 for inserting the tightening component on the side of the elliptical groove 11. The tightening bolt 4 is pushed into the recessed hole 12 to push the adjusting block 1 to move.

[0049] The side end of the stop block 3 is provided with a Y-axis adjusting screw hole 35 for threaded engagement with the Y-axis adjusting bolt 51;

[0050] Optionally, the adjusting block 1 is provided with a third machining hole 13 for the discharge of gas in the concave hole 12 in the vacuum environment, so as to avoid leakage into the vacuum environment and causing a sudden increase in pressure.

[0051] In an embodiment of the present invention, a step 16 is provided on one side of the top of the adjusting block 1, and a pressure angle 36 is provided on the top of the side of the stop block 3 near the adjusting block 1. The pressure angle 36 prevents the adjusting block 1 from being pried on one side under the action of the second bolt 102, and works together with the inclined surface 26 to keep the adjusting block 1 in a horizontal plane.

[0052] In an embodiment of the present invention, the upper base 8 has a first elliptical hole 87 and a second elliptical hole 88 respectively at both ends, and the lower base 9 has a first screw hole 92 and a second screw hole 95 respectively at both ends. The first fixing bolt 18 passes through the first elliptical hole 87 and the second elliptical hole 88 and is fixed with the first screw hole 92 and the second screw hole 95.

[0053] In an embodiment of the present invention, the upper base 8 is provided with a third elliptical hole 85 at both ends, and the lower base 9 is provided with a first countersunk hole 93 and a second countersunk hole 94 at both ends. The third elliptical hole 85, the first countersunk hole 93, and the second countersunk hole 94 are passed through by the second fixing bolt 19 and fixed to the end plane of the equipment. The first elliptical hole 87, the second elliptical hole 88, and the third elliptical hole 85 are designed to avoid the first fixing bolt 18 and the second fixing bolt 19, providing space for the displacement of the upper base 8. The third elliptical hole 85 completely avoids the second fixing bolt 19. After being fixed to the end plane of the equipment by the second fixing bolt 19, it does not affect the displacement of the upper base 8.

[0054] In the bidirectional correction structure disclosed in this invention, there are three layers: the bottom layer is the lower base 9, the middle layer is the upper base 8, and the top layer is the adjusting block 1. The lower base 9 mainly serves to fix the specific position of the roller, the upper base 8 is used to adjust the horizontal position of the Y-axis, and the adjusting block 1 is used to adjust the horizontal position of the X-axis. In use, it is fixed to the end plane of the equipment by the second fixing bolt 19. When the horizontal position of the roller needs to be adjusted, first ensure that the inclined surface of the adjusting block 1 is in contact with the inclined surface of the reference body 2. If they are not in complete contact, the tightening bolt 4 needs to be adjusted until the inclined surface 17 of the block and the inclined surface 26 of the body are in complete contact. Then tighten the nut 42 on the tightening bolt 4, and then adjust the horizontal position of the Y-axis by turning the Y-axis adjusting bolt 51. After the longitudinal horizontal position is adjusted, the first fixing bolt 18 needs to be tightened. After the longitudinal horizontal position is calibrated, the transverse horizontal position is calibrated by turning the X-axis adjusting bolt 52. After the transverse horizontal position is calibrated, the first bolt 101 and the second bolt 102 are tightened. At this time, the transverse and longitudinal horizontal positions of the roller are calibrated.

[0055] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0056] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A bidirectional correction structure, comprising an adjustment block (1) for connecting the part to be corrected, characterized in that, Also includes: The lower base (9) is connected to the upper base (8). The upper base (8) is connected to a reference body (2) and a stop block (3) at both ends. The reference body (2) and the stop block (3) can only move up and down along the vertical direction of the plane of the upper base (8). The top of the adjusting block (1) is provided with a block inclined surface (17). The top of the reference body (2) near the adjusting block (1) is provided with a body inclined surface (26). A clamping assembly is connected to the stop block (3). The clamping assembly provides a directional thrust to the adjusting block (1) so that the inclined surface (17) of the block is in close contact with the inclined surface (26) of the body. The Y-axis adjustment assembly is fixedly connected to the lower base (9) and is used to push the upper base (8) to move along the plane parallel to the upper base (8); The X-axis adjustment assembly is fixedly connected to the upper base (8) and is used to push the adjustment block (1) to move along the plane parallel to the upper base (8). The pushing directions of the X-axis adjustment assembly and the Y-axis adjustment assembly are perpendicular to each other. The reference body (2) is connected to the upper base (8) through the first positioning pin (21). The reference body (2) has first through holes (22) at both ends. The first through holes (22) are fixedly connected to the upper base (8) through the first bolt (101). The reference body (2) has a U-shaped groove (25) in the middle on the side near the adjustment block (1); The stop block (3) is connected to the upper base (8) by a second positioning pin (31). The stop block (3) has a second through hole (32) at both ends. The second through hole (32) is fixedly connected to the upper base (8) by a second bolt (102). The stop block (3) has a tightening screw hole (34) on its side end. The tightening component is a tightening bolt (4) that meshes with the tightening screw hole (34). One end of the tightening bolt (4) passes through the tightening screw hole (34) and abuts against the adjusting block (1).

2. The bidirectional correction structure according to claim 1, characterized in that, The Y-axis adjustment assembly includes a Y-axis adjustment bracket (6) and a Y-axis adjustment bolt (51) connected to the Y-axis adjustment bracket (6). The X-axis adjustment assembly includes an X-axis adjustment bracket (7) and an X-axis adjustment bolt (52) connected to the X-axis adjustment bracket (7).

3. The bidirectional correction structure according to claim 2, characterized in that, The top of the adjusting block (1) is provided with a groove (15) for connecting the part to be calibrated, and the side end of the adjusting block (1) is provided with an elliptical groove (11) for inserting the Y-axis adjusting bolt (51) and an X-axis adjusting screw hole (14) for inserting the X-axis adjusting bolt (52). The adjusting block (1) is provided with a recessed hole (12) for inserting the tightening assembly on the side of the elliptical groove (11).

4. The bidirectional correction structure according to claim 1, characterized in that, The top of the adjusting block (1) is provided with a step (16), and the top of the stop block (3) near the adjusting block (1) is provided with a pressing angle (36).

5. The bidirectional correction structure according to claim 1, characterized in that, The upper base (8) has a first elliptical hole (87) and a second elliptical hole (88) at its two ends respectively. The lower base (9) has a first screw hole (92) and a second screw hole (95) at its two ends opposite to each other. The first fixing bolt (18) passes through the first elliptical hole (87) and the second elliptical hole (88) and is fixed with the first screw hole (92) and the second screw hole (95).

6. The bidirectional correction structure according to claim 1, characterized in that, The upper base (8) has a third elliptical hole (85) at each end, and the lower base (9) has a first countersunk hole (93) and a second countersunk hole (94) at opposite ends. The third elliptical hole (85), the first countersunk hole (93), and the second countersunk hole (94) are passed through by the second fixing bolt (19) and fixed to the end plane of the equipment.

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