CN218891572U

CN218891572U - Detachable four-axis center correction auxiliary device

Info

Publication number: CN218891572U
Application number: CN202223417393.5U
Authority: CN
Inventors: 郑志勋; 张敏; 芮伯乐; 许可森; 刘公雨; 郑佳敏; 钱伦权; 邹智华; 汤翔; 刘胜; 陶鹏飞
Original assignee: WUHU YONGYU AUTOCAR INDUSTRIAL CO LTD
Current assignee: WUHU YONGYU AUTOCAR INDUSTRIAL CO LTD
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-21
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a detachable four-axis center correction auxiliary device which comprises a frame, two base clamping jaws, a first movable platform, a second movable platform, a first laser transmitter arranged on the first movable platform, a second laser transmitter arranged on the second movable platform, a horizontal adjusting mechanism arranged on the first movable platform and used for adjusting the distance between the second movable platform and the first movable platform, a height adjusting mechanism arranged on the frame and used for controlling the first movable platform to lift and a clamping jaw adjusting mechanism arranged on the frame and used for adjusting the distance between the two base clamping jaws, wherein the frame is positioned between the two base clamping jaws, and the first movable platform and the second movable platform are positioned above the frame. The detachable four-axis center correction auxiliary device is convenient for correcting the four-axis center of the four-axis machine tool, is beneficial to prolonging the service life of the four-axis machine tool, improves the correction work efficiency and accuracy, and is convenient and simple to operate.

Description

Detachable four-axis center correction auxiliary device

Technical Field

The utility model belongs to the technical field of machine tools, and particularly relates to a detachable four-axis center correction auxiliary device suitable for a four-axis machine tool.

Background

The processing machine tool is a necessary guarantee for generating industrial products, and the four-axis machine tool is widely applied currently. The requirements on machining precision in the fields of automobiles, ships, aviation and the like are more severe, complex and changeable environments, climates, changeable scenes and the like in space are faced, so that the assembly requirements among parts are inconsistent, the style of the parts is extremely challenging, and in the biomedical field, the workpiece is delicate and small, the operation in human blood vessels and the like can be guaranteed, the requirements on the workpiece are small, and the extremely high machining precision is guaranteed. Of course, the development of processing technology has greatly advanced to the development of industry 4.0, and the processing requirements of the forthcoming industry 5.0 on machine tools are only increased, but not reduced. The improvement of the processing technology is the improvement of the industrial level of the whole country, is the improvement of high-precision equipment in each generation of products, and the future high-tech products probably cannot meet the requirements on the properties of toughness, flexibility, easy processing degree, abrasion resistance and the like of materials, namely the defect of the multifunctional materials, but the improvement of the processing technology and the improvement of the precision of the craftsman have long-term benefits. The processing machine tool is iteratively updated step by step from three-axis and four-axis to the latest seven-axis machine tool internationally at present, which represents that the current industry carries out all-round promotion on the complexity of curved surfaces, processing complexity, industrial requirements, workpiece precision and the like of parts step by step. A four-axis machine tool refers to a device having an X-axis, a Y-axis, a Z-axis, and a rotation axis. The triaxial machine tool can meet the basic requirement of processing products, but the machined part needs to be repositioned for many times when facing curved surfaces and pin holes, key grooves and the like with special angles, so that the processing precision is greatly reduced.

When we need high precision machining, it is often necessary to apply four-axis or five-axis machine tools for machining. Most of the manufacturing is done using a three-axis machine, such as a conventional numerically controlled machine or a manual milling machine. While a four-axis numerically controlled machine tool, it can produce tools and parts with greater complexity and accuracy. Four-axis numerical control machining and four-axis milling machining can also produce a smooth surface finish, which is essential for many manufacturing applications. Because the multi-axis numerical control machining can cut the workpiece from different angles, the four-axis and five-axis machine tools can finish the machining of the part in a shorter time without multiple setting. This has the interlocking advantage of eliminating incorrect alignment, which risk exists each time the workpiece must be manually reoriented for new settings. Another advantage of multi-axis machining is that it eliminates the need for complex clamps, which are typically used to secure the part in place on a three-axis machine. It can be said that a great advantage of four-axis and five-axis numerical control machining is how more complex shapes can be produced with higher standards. For a tri-axis machine, the curved edge requires multiple small cuts, which can take a long time to complete, and rarely leaves a perfect finish. But on a multi-axis machine, a gradual rotation (adjusting either the fourth or fifth axis) may produce a near perfect profile with a smooth finish. While multi-axis machine tools can be moved with additional axes, the machine tool can be moved with a new arc and angle with a greater range and flexibility. This will result in the ability to create a variety of different geometries. In addition, by enabling the machine tool to orient the cutter at any angle, the work can be programmed to cut the workpiece in an efficient manner, providing the desired cutting speed and angle of chip removal for machining, resulting in a higher finished portion of the machining quality.

The object has 6 degrees of freedom in space, X-direction, Y-direction, Z-direction, rotation about the X-axis, rotation about the Y-axis, and rotation about the Z-axis, respectively. The four-axis horizontal machine tool well solves the problem that the precision is reduced due to the fact that multiple tool setting is needed when the three-axis machine tool processes special workpieces. However, as a machine tool, in order to face different types of workpieces, it is necessary to replace suitable power heads and tailstocks, and the existing four-axis horizontal machine tool lacks four-axis center correction measures, and if the four-axis center is not corrected in time, the workpiece can incline during machining, and in machining engineering, a large torque can be generated on the whole machine tool, and meanwhile, the abrasion of the power heads and the tailstocks is aggravated, so that the service life of the four-axis machine tool is reduced, in addition, the phenomenon of tool jump is caused, and the machining precision is greatly reduced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a detachable four-axis center correction auxiliary device, which aims to conveniently correct the four-axis center of a four-axis machine tool.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: can dismantle four-axis center correction auxiliary device, which comprises a frame, two base clamping jaw, first movable platform, the second movable platform, set up the first laser emitter on first movable platform, set up the second laser emitter on the second movable platform, set up on first movable platform and be used for adjusting the second movable platform and first movable platform between the distance horizontal adjustment mechanism, set up in the frame and be used for controlling first movable platform go on the height adjustment mechanism who goes up and down and set up in the frame and be used for adjusting the clamping jaw adjustment mechanism of distance between two base clamping jaw, the frame is located between two base clamping jaw, first movable platform and second movable platform are located the top of frame.

The horizontal adjusting mechanism comprises a first handle and a first transmission mechanism which is arranged on the first movable platform and connected with the first handle, and the first transmission mechanism is connected with the second movable platform.

The first transmission mechanism is a screw nut mechanism, a first guide rod for guiding the second movable platform is arranged on the first movable platform, and the first guide rod penetrates through the second movable platform.

The height adjusting mechanism comprises a second handle, a second transmission mechanism connected with the second handle, a third transmission mechanism connected with the second transmission mechanism and a fourth transmission mechanism connected with the third transmission mechanism, and the fourth transmission mechanism is connected with the first movable platform.

The second transmission mechanism and the third transmission mechanism are bevel gear mechanisms, and the fourth transmission mechanism is a gear rack mechanism.

The third transmission mechanisms and the fourth transmission mechanisms are two, and each third transmission mechanism is connected with one fourth transmission mechanism respectively.

The first movable platform is connected with a second guide rod, the second guide rod is arranged vertically, and a second guide hole for the second guide rod to be inserted is formed in the frame.

The second guide rods are two, and the third transmission mechanism is positioned between the two second guide rods.

The clamping jaw adjusting mechanism comprises a third handle, a fifth transmission mechanism connected with the third handle, a sixth transmission mechanism connected with the fifth transmission mechanism and a seventh transmission mechanism connected with the sixth transmission mechanism, and the seventh transmission mechanism is connected with the base clamping jaw.

The fifth transmission mechanism is a bevel gear mechanism, and the sixth transmission mechanism is a worm gear mechanism; the seventh transmission mechanism is a gear rack mechanism.

The detachable four-axis center correction auxiliary device is convenient for correcting the four-axis center of the four-axis machine tool, is beneficial to prolonging the service life of the four-axis machine tool, improves the correction work efficiency and accuracy, and is convenient and simple to operate.

Drawings

The present specification includes the following drawings, the contents of which are respectively:

FIG. 1 is a schematic view of the structure of a detachable four-axis center correction assist device of the present utility model;

FIG. 2 is a schematic view of an arrangement of a first movable platform and a second movable platform;

FIG. 3 is a schematic view of an arrangement of the height adjustment mechanism;

FIG. 4 is a schematic illustration of an arrangement of a jaw adjustment mechanism;

marked in the figure as: 1. a frame; 2. a base clamping jaw; 3. a first movable platform; 4. a second movable platform; 5. a first laser transmitter; 6. a second laser transmitter; 7. a first handle; 8. a first transmission mechanism; 9. a first guide bar; 10. a second handle; 11. a second transmission mechanism; 12. a third transmission mechanism; 13. a fourth transmission mechanism; 14. a second guide bar; 15. a third handle; 16. a fifth transmission mechanism; 17. a sixth transmission mechanism; 18. a seventh transmission mechanism; 19. a bearing; 20. a bracket; 21. a first drive shaft; 22. a third drive shaft; 23. and a fourth transmission shaft.

Detailed Description

The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the utility model, and to aid in its practice, by those skilled in the art.

In the following embodiments, the terms "first", "second", "third", "fourth", "fifth", "sixth" and "seventh" do not denote absolute differences in structure and/or function, but do not denote sequential order of execution, and are merely for convenience of description.

As shown in fig. 1 to 4, the utility model provides a detachable four-axis center correction auxiliary device, which comprises a frame 1, two base clamping jaws 2, a first movable platform 3, a second movable platform 4, a first laser transmitter 5 arranged on the first movable platform 3, a second laser transmitter 6 arranged on the second movable platform 4, a horizontal adjusting mechanism arranged on the first movable platform 3 and used for adjusting the distance between the second movable platform 4 and the first movable platform 3, a height adjusting mechanism arranged on the frame 1 and used for controlling the first movable platform 3 to lift and a clamping jaw adjusting mechanism arranged on the frame 1 and used for adjusting the distance between the two base clamping jaws 2, wherein the frame 1 is positioned between the two base clamping jaws 2, and the first movable platform 3 and the second movable platform 4 are positioned above the frame 1.

Specifically, as shown in fig. 1 and 2, the frame 1 is vertically disposed, the first moving platform 3 and the second moving platform 4 are horizontally disposed, the second moving platform 4 is two, the first moving platform 3 is one, the first moving platform 3 is located between the two second moving platforms 4, and the first moving platform 3 and the second moving platform 4 are at the same height. The first laser generator is fixedly arranged on the first movable platform 3, the second laser generator is fixedly arranged on the second movable platform 4, the first laser generator and the second laser generator are positioned on the same straight line parallel to the first direction, the first direction is the horizontal direction, and the first direction is parallel to the length direction of the first movable platform 3. The horizontal adjusting mechanism is used for adjusting the distance between the second movable platform 4 and the first movable platform 3, namely the distance between the second laser generator and the first laser generator, and comprises a first handle 7 and a first transmission mechanism 8 which is arranged on the first movable platform 3 and connected with the first handle 7, and the first transmission mechanism 8 is connected with the second movable platform 4. The first handle 7 is used for being held by an operator, receives a rotation force applied by the operator, and the rotation center line of the first handle 7 is parallel to the first direction.

As shown in fig. 1 and 2, a first laser transmitter 5 is fixed on the central line of the frame 1 and is placed on the first movable platform 3, the first laser transmitter 5 plays a role in correcting the four-axis center of the four-axis machine tool, the first laser transmitter 5 transmits signals, and the first laser transmitter 5 is used for measuring the distance of the four axes of the four-axis machine tool; the second laser emitter 6 of first laser emitter 5 both sides is fixed in respectively on two second movable platform 4, and second laser emitter 6 is used for the range finding, and second laser emitter 6 transmits the signal, and the laser generator that one of them second movable platform 4 set up is used for measuring the distance of the unit head of four-axis lathe, and the laser generator that another second movable platform 4 set up is used for measuring the distance of the tailstock of four-axis lathe for prevent to change the unit head of four-axis lathe and the upset that produces because of the bolt tightening behind the tailstock (unit head and tailstock pass through the bolt mounting on the lathe bed), ensure that the mounted position after unit head and the tailstock are changed is accurate.

As shown in fig. 1 and 2, in the present embodiment, the first transmission mechanism 8 is a screw-nut mechanism, the screw of the first transmission mechanism 8 is parallel to the first direction, the screw of the first transmission mechanism 8 is rotatably disposed on the first moving platform 3, the nut of the first transmission mechanism 8 is connected to the second moving platform 4, and the nut and the second moving platform 4 move linearly synchronously. The first movable platform 3 is provided with first guide rods 9 for guiding the second movable platform 4, the first guide rods 9 penetrate through the second movable platform 4, the length direction of the first guide rods 9 is parallel to the first direction, the second movable platform 4 is provided with first guide holes for the first guide rods 9 to penetrate through, the number of the first guide holes is two, each first guide hole is respectively penetrated by one first guide rod 9, a lead screw of the first transmission mechanism 8 is positioned between the two first guide rods 9, the first transmission mechanism 8 and the two first guide rods 9 are positioned on the same straight line parallel to the second direction, and the second direction is horizontal and perpendicular to the first direction. One end of a first guide rod 9 is fixedly connected with the mounting plate, the other end of the first guide rod 9 is fixedly connected with the first movable platform 3, the second movable platform 4 is located between the mounting plate and the first movable platform 3, the first transmission mechanism 8 penetrates through the mounting plate, and the first handle 7 is located outside the mounting plate. When the position of the second laser generator needs to be adjusted, the first handle 7 is screwed, the first handle 7 drives the first transmission mechanism 8 to operate, and the first transmission mechanism 8 drives the second movable platform 4 and the second laser generator on the second movable platform to move along the first direction, so that the position of the second laser generator can be adjusted.

As shown in fig. 1 and 3, the height adjusting mechanism includes a second handle 10, a second transmission mechanism 11 connected to the second handle 10, a third transmission mechanism 12 connected to the second transmission mechanism 11, and a fourth transmission mechanism 13 connected to the third transmission mechanism 12, the fourth transmission mechanism 13 being connected to the first movable platform 3. The second handle 10 is located outside the frame 1, the second handle 10 is used for being held by an operator, and receives a rotation force applied by the operator, and a rotation center line of the second handle 10 is parallel to the second direction. The second transmission mechanism 11, the third transmission mechanism 12 and the fourth transmission mechanism 13 are arranged in the inner cavity of the frame 1, the second transmission mechanism 11 and the third transmission mechanism 12 are bevel gear mechanisms, and the fourth transmission mechanism 13 is a gear rack mechanism.

As shown in fig. 1 and 3, the second transmission mechanism 11 is provided in one, the third transmission mechanism 12 and the fourth transmission mechanism 13 are provided in two, and each third transmission mechanism 12 is connected to one fourth transmission mechanism 13. The driving bevel gear of the second transmission mechanism 11 is connected with the second handle 10, the driven bevel gear of the second transmission mechanism 11 is fixedly connected with the driving bevel gear of the third transmission mechanism 12 in a coaxial manner, the driven bevel gear of the third transmission mechanism 12 is fixedly connected with the gear of the fourth transmission mechanism 13 in a coaxial manner, the rack of the fourth transmission mechanism 13 is vertically arranged, and the upper end of the rack of the fourth transmission mechanism 13 is fixedly connected with the first movable platform 3. The driven bevel gear of the second transmission mechanism 11 and the drive bevel gear of the third transmission mechanism 12 are arranged on the first transmission shaft 21, the axis of the first transmission shaft 21 is parallel to the first direction, brackets 20 for supporting the first transmission shaft 21 are arranged in the inner cavity of the frame 1, two brackets 20 are arranged, and the driven bevel gear of the second transmission mechanism 11 is positioned between the two brackets 20. The driven bevel gear of the third transmission mechanism 12 and the gear of the fourth transmission mechanism 13 are arranged on second transmission shafts, the axes of the second transmission shafts are parallel to the second direction, two second transmission shafts are arranged, and the first transmission shaft 21 is positioned between the two second transmission shafts.

As shown in fig. 1 and 3, the first movable platform 3 is connected with the second guide rod 14, the second guide rod 14 is vertically arranged, and the frame 1 is provided with a second guide hole for inserting the second guide rod 14. The second guide rods 14 are arranged in two, and the third transmission mechanism 12 is arranged between the two second guide rods 14. The two second guide rods 14 are on the same straight line parallel to the first direction, and each second guide rod 14 is on the same straight line parallel to the second direction with the rack of one fourth transmission mechanism 13. The upper end of the second guide rod 14 is fixedly connected with the first movable platform 3, and the arrangement of the second guide rod 14 can ensure that the first movable platform 3 operates stably when the height of the first movable platform 3 is adjusted. When the height position of the first movable platform 3 needs to be adjusted, the second handle 10 is screwed, the second handle 10 drives the second transmission mechanism 11 to operate, the second transmission mechanism 11 drives the third transmission mechanism 12 to operate, the third transmission mechanism 12 drives the fourth transmission mechanism 13 to operate, and finally the rack of the fourth transmission mechanism 13 drives the first movable platform 3 and the first laser generator, the second movable platform 4 and the second laser generator on the first movable platform to move along the vertical direction, so that the adjustment of the height position can be realized, the operation is convenient and simple, the efficiency is high, and the stability is good.

As shown in fig. 1 and 4, the jaw adjustment mechanism includes a third handle 15, a fifth transmission 16 connected to the third handle 15, a sixth transmission 17 connected to the fifth transmission 16, and a seventh transmission 18 connected to the sixth transmission 17, the seventh transmission 18 being connected to the base jaw 2. The third handle 15 is located outside the frame 1, the third handle 15 is used for being held by an operator, the rotation force applied by the operator is received, and the rotation center line of the third handle 15 is parallel to the second direction. The fifth transmission mechanism 16, the sixth transmission mechanism 17 and the seventh transmission mechanism 18 are arranged in the inner cavity of the frame 1, the fifth transmission mechanism 16 is a bevel gear mechanism, the sixth transmission mechanism 17 is a worm gear mechanism, and the seventh transmission mechanism 18 is a gear rack mechanism. The drive bevel gear of the fifth transmission mechanism 16 is fixedly connected with the third handle 15 through the third transmission shaft 22, the axis of the third transmission shaft 22 is parallel to the second direction, the driven bevel gear of the fifth transmission mechanism 16 is coaxially and fixedly connected with the worm of the sixth transmission mechanism 17, the worm wheel of the sixth transmission mechanism 17 is coaxially and fixedly connected with the gear of the seventh transmission mechanism 18, the rack of the sixth transmission mechanism 17 is fixedly connected with the base clamping jaw 2, the length direction of the rack of the sixth transmission mechanism 17 is parallel to the first direction, the rack of the sixth transmission mechanism 17 is guided by the rack 1, and the rack of the sixth transmission mechanism 17 moves linearly along the first direction.

As shown in fig. 1 and 4, in the present embodiment, one fifth transmission mechanism 16 is provided, two sixth transmission mechanisms 17 and seven transmission mechanisms 18 are provided, each sixth transmission mechanism 17 is connected to one seventh transmission mechanism 18, and the fifth transmission mechanism 16 is located between the two sixth transmission mechanisms 17. The racks of the seventh gear mechanisms 18 are each fixedly connected to one base jaw 2. When the distance between the two base clamping jaws 2 needs to be adjusted, the third handle 15 is screwed, the third handle 15 drives the fifth transmission mechanism 16 to operate, the fifth transmission mechanism 16 drives the sixth transmission mechanism 17 to operate, the sixth transmission mechanism 17 drives the seventh transmission mechanism 18 to operate, finally racks of the two seventh transmission mechanisms 18 drive the two base clamping jaws 2 to synchronously linearly move, so that the two base clamping jaws 2 do opposite or opposite separation movements, the two base clamping jaws 2 can clamp the base of the four-axis machine tool or loosen the base, and the structure is convenient and simple to operate, high in efficiency and high in clamping reliability. After the two base clamping jaws 2 clamp the base of the four-axis machine tool, the detachable four-axis center correction auxiliary device can be fixed on the base; after the two base clamping jaws 2 loosen the base of the four-axis machine tool, the detachable four-axis center correcting auxiliary device can be detached from the base of the four-axis machine tool.

The detachable four-axis center correction auxiliary device with the structure has the following advantages:

(1) The clamping jaw can be clamped synchronously and oppositely by utilizing the self-locking property of the worm and the gear and the rack, which are symmetrically arranged in the lower-layer rack, and can not be loosened after being clamped;

(2) The self-locking property of the screw rod is utilized, and the horizontal moving platform moves left and right in the screw rod sliding rail mechanism, so that the diameter sizes of different power heads and tailstocks can be met;

(3) According to the device, the laser transmitter is fixed on the lifting moving platform and the horizontal moving platform through the support, on one hand, the complexity of an actual working environment is considered, and in order to facilitate replacement of the light equipment, the common wearing parts cannot be placed in the frame box; on the other hand, the fact that the actual working environment is possibly narrow and dark is considered, and the operation is inconvenient is considered, so that a certain displacement can be set for the upper frame, and then fine adjustment is carried out after the correction of the device, and the difficulty of four-axis center correction engineering is reduced;

(4) Through the worm gear mechanism of lower floor's frame to and the lead screw slide bar mechanism of upper strata, realize three-dimensional space's motion, this device is sealed in the frame to the internal part in addition, fine life-span that provides the device, and parts such as the gear are used to many in the device secondly, can obtain fine precision in actual four-axis center correction process, and to the machine tool, the precision is very important.

The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.

Claims

1. Can dismantle four-axis center correction auxiliary device, its characterized in that: including frame, two base clamping jaw, first movable platform, the second movable platform, set up the first laser emitter on first movable platform, set up the second laser emitter on the second movable platform, set up on first movable platform and be used for adjusting the second movable platform and the first level adjustment mechanism who moves the distance between the platform, set up in the frame and be used for controlling the first movable platform and go up and down high adjustment mechanism and set up in the frame and be used for adjusting the clamping jaw adjustment mechanism of distance between two base clamping jaw, the frame is located between two base clamping jaw, first movable platform and second movable platform are located the top of frame.

2. The detachable four-axis center correction assist device according to claim 1, wherein: the horizontal adjusting mechanism comprises a first handle and a first transmission mechanism which is arranged on the first movable platform and connected with the first handle, and the first transmission mechanism is connected with the second movable platform.

3. The detachable four-axis center correction assist device according to claim 2, wherein: the first transmission mechanism is a screw nut mechanism, a first guide rod for guiding the second movable platform is arranged on the first movable platform, and the first guide rod penetrates through the second movable platform.

4. A detachable four-axis center correction assist device according to any one of claims 1 to 3, wherein: the height adjusting mechanism comprises a second handle, a second transmission mechanism connected with the second handle, a third transmission mechanism connected with the second transmission mechanism and a fourth transmission mechanism connected with the third transmission mechanism, and the fourth transmission mechanism is connected with the first movable platform.

5. The removable four-axis centering assistance device of claim 4, wherein: the second transmission mechanism and the third transmission mechanism are bevel gear mechanisms, and the fourth transmission mechanism is a gear rack mechanism.

6. The removable four-axis centering assistance device of claim 5, wherein: the third transmission mechanisms and the fourth transmission mechanisms are two, and each third transmission mechanism is connected with one fourth transmission mechanism respectively.

7. The removable four-axis centering assistance device of claim 4, wherein: the first movable platform is connected with a second guide rod, the second guide rod is arranged vertically, and a second guide hole for the second guide rod to be inserted is formed in the frame.

8. The removable four-axis centering assistance device of claim 7, wherein: the second guide rods are two, and the third transmission mechanism is positioned between the two second guide rods.

9. A detachable four-axis center correction assist device according to any one of claims 1 to 3, wherein: the clamping jaw adjusting mechanism comprises a third handle, a fifth transmission mechanism connected with the third handle, a sixth transmission mechanism connected with the fifth transmission mechanism and a seventh transmission mechanism connected with the sixth transmission mechanism, and the seventh transmission mechanism is connected with the base clamping jaw.

10. The removable four-axis centering assistance device of claim 9, wherein: the fifth transmission mechanism is a bevel gear mechanism, and the sixth transmission mechanism is a worm gear mechanism; the seventh transmission mechanism is a gear rack mechanism.