CN114700771A - A fixture for automatically flipping CNC machine tools - Google Patents

Abstract

The invention relates to the technical field of numerically-controlled machine tools, and discloses a fixture for automatically flipping numerically-controlled machine tools; a sliding plate is moved by a moving device, so that the two sliding plates are moved equidistantly or oppositely at the same time, which facilitates the positioning of the workpiece and prevents the The problem of inaccurate positioning of the workpiece, resulting in inaccurate machining accuracy, improves the work efficiency, and the first screw is easily rotated through the first adjustment device, which reduces the adjustment time, saves effort, improves the clamping speed, and ensures that the The work efficiency is improved, and the workpiece is prevented from loosening during the processing by the anti-loosening device, causing the arch frame to fall off, causing safety accidents, avoiding the damage of the machine tool head, and improving the processing accuracy. The free-form rotation makes the clamp more stable, ensures the fit between the clamping head of the clamp and the surface of the workpiece, improves the stability of the clamp, and improves the safety of the machine tool.

Description

A fixture for automatically flipping CNC machine tools

technical field

The invention relates to the technical field of numerical control machine tools, in particular to a fixture for an automatic overturning numerical control machine tool.

Background technique

CNC machine tool is the abbreviation of digital control machine tool, which is an automatic machine tool equipped with a program control system. The control system can logically process the program specified by the control code or other symbolic instructions, decode it, represent it with coded numbers, and input it into the numerical control device through the information carrier. After operation processing, various control signals are sent out by the numerical control device to control the action of the machine tool, and the parts are automatically processed according to the shape and size required by the drawing. The processing problem is a flexible and high-efficiency automatic machine tool, which represents the development direction of modern machine tool control technology and is a typical mechatronic product.

Existing fixtures cannot hold workpieces of different shapes. At present, the fixtures can only hold workpieces of fixed shapes. If you want to hold workpieces of different shapes, you need to replace different clamps, which increases the workload and reduces work efficiency. The angle of the furniture cannot be adjusted. At present, the angle of the fixture is fixed. During processing, in order to facilitate processing, the processing master needs to remove the workpiece from the machine tool. After adjusting the direction, the installation will increase the workload and reduce the work. efficiency, the practicability of the fixture is low, and it cannot meet the processing needs.

In order to solve the common problem in the field that clamps cannot clamp workpieces of different shapes when in use, the current clamps can only clamp workpieces of fixed shapes. If you want to clamp workpieces of different shapes, you need to replace different clamps, which increases the workload , reducing the work efficiency, and the angle of the furniture cannot be adjusted. At present, the angle of the fixture is fixed. During processing, in order to facilitate processing, the processing master needs to remove the workpiece from the machine tool. After adjusting the direction, it is installed. The work load is reduced, the work efficiency is reduced, the practicability of the fixture is low, and the problems that the fixture cannot meet the processing needs are made.

SUMMARY OF THE INVENTION

The purpose of the present invention is that, for workpieces of different shapes that cannot be clamped at present, the current fixture can only clamp workpieces of fixed shapes. If you want to clamp workpieces of different shapes, you need to replace different clamps, which increases the workload and reduces the In order to facilitate the processing, the processing master needs to disassemble the workpiece from the machine tool, adjust the direction and install it, which increases the workload , reducing the work efficiency, the practicability of the fixture is low, and it cannot meet the shortcomings of the processing needs. A fixture for automatic turning over of CNC machine tools is proposed.

In order to overcome the deficiencies of the prior art, the present invention adopts the following technical solutions:

A fixture for an automatic overturning CNC machine tool, comprising a base plate, a moving device, a first adjusting device, a first clamping device, a second clamping device, a third clamping device, an anti-loosening device, a steering device and a second adjusting device, The moving device is installed on the top of the base plate, the first adjusting device is installed on one end of the moving device, and the adjusting device is configured to be used with the moving device, and the anti-loosening device is installed on the moving device. The top of the moving device, the first clamping device is installed inside the anti-loosening device, the second clamping device is installed inside the first clamping device, and the first clamping device The third clamping device is arranged inside the second clamping device, and the third clamping device is arranged in the second clamping device. When used together, the steering device is mounted on the bottom of the bottom plate, the second adjusting device is mounted on the right side of the steering device, and the second adjusting device is configured to be located on the steering device for cooperation.

Optionally, the moving device includes a first sliding groove, the first sliding groove is opened on the surface of the bottom plate, and a first sliding block is slidably connected inside the first sliding groove, and the first sliding block A first screw is connected with the inner thread of the first screw, and both ends of the first screw are rotatably connected with the inner wall of the bottom plate through bearings.

Optionally, the first adjusting device includes a rocker, one end of the rocker is bolted to one end of the telescopic first screw, and one end of the rocker is rotatably connected to a rocker through a bearing, and the surface of the rocker is connected to a rocker. The fixed sleeve has a non-slip sleeve.

Optionally, the anti-loosening device includes a sliding plate, the bottom of the sliding plate is bolted with the top of the first sliding block, a telescopic plate is slidably sleeved inside the sliding plate, and the telescopic plate is connected to the top of the first sliding block. A tension spring is arranged between the sliding plates.

Optionally, the first clamping device includes a first semi-circular chute, the first semi-circular chute is opened on the surface of the telescopic plate, and a first semi-circular chute is slidably connected to the inside of the first semi-circular chute. The surface of the first semicircular slide rail is bolted with a first semicircular rotating plate.

Optionally, the second clamping device includes a second semicircular chute, and the number of telescopic second semicircular chute is two, the second semicircular chute is opened on the surface of the first semicircle rotating plate, A second semicircular sliding rail is slidably connected to the inside of the second semicircular sliding groove, and a second semicircular rotating plate is bolted on the surface of the second semicircular sliding rail.

Optionally, the third clamping device includes a third semicircular chute, and the number of the third semicircular chute is two, and the third semicircular chute is opened on the surface of the second semicircle rotating plate. , a third semicircular slide rail is slidably connected to the inside of the third semicircular chute, the surface of the third semicircular slide rail is bolted with a third semicircular rotating plate, and the surface of the third semicircular rotating plate is provided with a first Anti-slip pattern.

Optionally, the steering device includes a fixed block, the top of the fixed block is bolted to the bottom of the bottom plate, the bottom of the fixed block is bolted with a gear, and the surface of the gear is rotatably connected to a base through a bearing, A second screw rod is engaged with the surface of the gear, and both ends of the second screw rod are rotatably connected to the inner wall of the telescopic base through bearings.

Optionally, the second adjustment mechanism includes a rotating rod, one end of the rotating rod is bolted with one end of the second screw rod, and the surface of the rotating rod is rotatably sleeved with the inner wall of the base through a bearing, the One end of the rotating rod is bolted with a rotating head, and the surface of the rotating cylinder is provided with a second anti-skid pattern.

The beneficial effects obtained by the present invention are:

1. The sliding plate is moved by the moving device, so that the two sliding plates move equidistantly or oppositely at the same time, which facilitates the positioning of the workpiece, prevents the workpiece from being inaccurately positioned, and causes the problem of inaccurate machining accuracy, and improves the work efficiency. ;

2. It is convenient to rotate the first screw through the first adjusting device, which reduces the adjustment time, saves the effort, improves the clamping speed, and ensures the work efficiency;

3. The anti-loosening device is used to prevent the workpiece from loosening during the machining process, causing the arch frame to fall off, causing safety accidents, avoiding the damage of the machine tool head, and improving the processing accuracy;

4. The first clamping device can be freely rotated according to the shape of the workpiece, so that the clamping of the clamp is more stable, the fit of the clamping head of the clamp and the surface of the workpiece is ensured, the stability of the clamp is improved, and the machine tool is improved. security;

5. The second clamping device can rotate freely according to the shape of the workpiece, making the clamping more stable, ensuring the fit of the clamping head of the fixture and the surface of the workpiece, improving the stability of the fixture and improving the machine tool. security;

6. The third clamping device can freely rotate according to the shape of the workpiece. The four third rotating plates can clamp the surface of the workpiece more tightly, making the workpiece firmer and ensuring the stability of the workpiece during processing. Further improve the reinforcement accuracy;

7. The direction of the fixture can be adjusted through the steering device. By rotating the second screw, the gear is rotated and the direction of the gear is changed, which improves the efficiency of adjusting the direction. Accuracy, improve product quality, reduce labor and improve work efficiency;

8. The second screw is easily rotated by the second adjusting device, the rotating rod is rotated by rotating the rotating head, and the rotation of the rotating rod drives the rotation of the second screw, which greatly improves the efficiency of adjustment, and the anti-slip pattern prevents the hand from slipping during adjustment. phenomenon, which improves the speed of adjustment.

Description of drawings

The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic perspective view of the structure of the present invention;

Fig. 2 is the front sectional view of the structure of the present invention;

Figure 3 is a side sectional view of the structure of the present invention.

In the picture: 1- bottom plate, 2- second anti-skid pattern, 3- first chute, 4- first slider, 5- first screw, 6- rocker, 7- rocker, 8- anti-skid sleeve, 9 -Sliding plate, 10-Telescopic plate, 11-Tension spring, 12-First semicircle chute, 13-First semicircle slide rail, 14-First semicircle rotating plate, 15-Second semicircle slide rail, 16-Second Semicircle chute, 17-second semicircle rotating plate, 18-third semicircle chute, 19-third semicircle slide rail, 20-third semicircle rotating plate, 21-first anti-skid pattern, 22-fixing block, 23- Gear, 24-base, 25-second screw, 26-rotating rod, 27-rotating head.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with its embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention, not to limit the present invention. invention. Other systems, methods and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the present invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in the following detailed description and will be apparent from the following detailed description.

The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms “upper”, “lower”, “left” and “right” are used The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or component must have a specific orientation. Orientation structure and operation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on the present patent. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

Embodiment 1: A fixture for an automatic overturning CNC machine tool, comprising a base plate 1, a moving device, a first adjusting device, a first clamping device, a second clamping device, a third clamping device, an anti-loosening device, a steering device, and a A second adjusting device, the moving device is installed on the top of the base plate 1, the first adjusting device is installed at one end of the moving device, and the adjusting device is configured to be used with the moving device, the The anti-loosening device is installed on the top of the moving device, the first clamping device is installed inside the anti-loosening device, the second clamping device is installed inside the first clamping device, and the The first clamping device is configured to be used in cooperation with the second clamping device, the third clamping device is installed inside the second clamping device, and the third clamping device is configured to be located at the The second clamping device is used in conjunction with the steering device, the steering device is installed on the bottom of the base plate 1, the second adjusting device is installed on the right side of the steering device, and the second adjustment device is arranged on the steering device. When used together, the moving device includes a first chute 3, the first chute 3 is opened on the surface of the bottom plate 1, and a first sliding block 4 is slidably connected to the inside of the first chute 3. A first screw 5 is threadedly connected to the inside of the first slider 4, and both ends of the first screw 5 are rotatably connected to the inner wall of the bottom plate 1 through bearings. The first adjusting device includes a crank 6, so the One end of the rocking handle 6 is bolted with one end of the telescopic first screw 5, and one end of the rocking handle 6 is rotatably connected with a rocker 7 through a bearing. The anti-loose device includes a sliding plate 9, the bottom of the sliding plate 9 is bolted with the top of the first sliding block 4, and a telescopic plate 10 is slidably sleeved inside the sliding plate 9, and the telescopic plate 10 is connected with all the A tension spring 11 is arranged between the sliding plates 9. The first clamping device includes a first semicircular sliding groove 12. The first semicircular sliding groove 12 is opened on the surface of the telescopic plate 10. A first semi-circular slide rail 13 is slidably connected to the inside of the circular chute 12 , a first semi-circular rotating plate 14 is bolted on the surface of the first semi-circular slide rail 13 , and the second clamping device includes a second semi-circular chute 16 , And the number of telescopic second semicircular chute 16 is two. A semicircular slide rail 15, the surface of the second semicircular slide rail 15 is bolted with a second semicircular rotating plate 17, the third clamping device includes a third semicircular slide groove 18, and the third semicircular slide groove 18 The number is two, the third semicircular sliding groove 18 is opened on the surface of the second semicircular rotating plate 17, and the third semicircular sliding groove 18 is slidably connected with a third semicircular sliding rail 19. The surface of the semi-circular slide rail 19 is bolted with a third semi-circular rotating plate 20 , the surface of the third semi-circular rotating plate 20 is provided with a first anti-skid pattern 21 , and the steering device includes a fixed block 22 , and the top of the fixed block 22 is with the base plate 1 The bottom is bolted, the bottom of the fixed block 22 is bolted with a gear 23, the surface of the gear 23 is rotatably connected to the base 24 through a bearing, the surface of the gear 23 is engaged with a second screw 25, and the second screw Both ends of 25 are rotatably connected to the inner wall of the telescopic base 24 through bearings. The second adjustment mechanism includes a rotating rod 26, one end of the rotating rod 26 is bolted to one end of the second screw 25, and the rotating rod 26 The surface of the rotating cylinder is rotatably sleeved with the inner wall of the base 24 through a bearing, one end of the rotating rod 26 is bolted with a rotating head 27, and the surface of the rotating cylinder is provided with a second anti-skid pattern 2.

Embodiment 2: This embodiment should be understood to include at least all the features of any one of the foregoing embodiments, and further improve on the basis thereof. Specifically, a fixture for automatic turning over of a CNC machine tool is provided, including a base plate 1, a moving device , the first adjusting device, the first clamping device, the second clamping device, the third clamping device, the anti-loosening device, the steering device and the second adjusting device, the moving device is installed on the top of the bottom plate 1, so The first adjusting device is installed on one end of the mobile device, and the adjusting device is configured to be used in conjunction with the mobile device, the anti-loosening device is installed on the top of the mobile device, and the first clamping device is installed inside the anti-loosening device, the second clamping device is installed inside the first clamping device, and the first clamping device is configured to be located in the second clamping device for cooperating use, The third clamping device is installed inside the second clamping device, and the third clamping device is configured to be used with the second clamping device, and the steering device is installed on the base plate 1 The second adjusting device is installed on the right side of the steering device, and the second adjusting device is configured to be used in conjunction with the steering device. Specifically, the moving device moves the sliding plate 9 to make the two sliding The plates 9 move relative to each other at equal distances at the same time, which facilitates the positioning of the workpiece, prevents the problem of inaccurate positioning of the workpiece, which leads to inaccurate machining accuracy, and improves the work efficiency. The rotation of a screw 5 reduces adjustment time, saves effort, improves clamping speed, and ensures work efficiency. In this embodiment, the anti-loosening device prevents the workpiece from loosening during processing, causing the arch to fall off. , causing a safety accident, avoiding damage to the tool head of the machine tool, and improving the machining accuracy. In this embodiment, the first clamping device can rotate freely according to the shape of the workpiece, so that the clamp is more stable, and the clamp is guaranteed to be clamped. The degree of fit between the clamping head and the surface of the workpiece improves the stability of the fixture and the safety of the machine tool. In this embodiment, the second clamping device can rotate freely according to the shape of the workpiece, so that the fixture can be clamped. It is more stable, which ensures the fit between the clamping head of the fixture and the surface of the workpiece, improves the stability of the fixture, and improves the safety of the machine tool. In this embodiment, the third clamping device can be free according to the shape of the workpiece. The four third rotating plates can clamp the surface of the workpiece more tightly, making the workpiece firmer, ensuring the stability of the workpiece during processing, and further improving the reinforcement accuracy. In this embodiment, the steering The device can adjust the direction of the clamp. By rotating the second screw 25, the gear 23 is rotated and the direction of the gear 23 is changed, which improves the efficiency of adjusting the direction. Accuracy improves product quality, reduces labor, and improves work efficiency. In this embodiment, the second adjusting device facilitates the rotation of the second screw 25. By rotating the rotating head 27, the rotating rod 26 is rotated, and the rotating rod 26 is rotated. Drive the second screw 25 The way of rotation greatly improves the efficiency of adjustment, and the anti-skid pattern prevents the hand from slipping during adjustment, and improves the speed of adjustment.

The moving device includes a first chute 3, which is opened on the surface of the bottom plate 1, and a first sliding block 4 is slidably connected to the inside of the first chute 3. A first screw 5 is threadedly connected inside the block 4, and both ends of the first screw 5 are rotatably connected to the inner wall of the bottom plate 1 through bearings. In this embodiment, the rotation of the first screw 5 drives the first slide. The block 4 moves along the first chute 3. Since the threads on the first screw 5 are in opposite directions, the first screw 5 is rotated to move the two first sliders 4 relative to or opposite to each other. The north movement makes the device clamp or loosen the workpiece.

The first adjusting device includes a rocker 6, one end of the rocker 6 is bolted to one end of the telescopic first screw 5, and one end of the rocker 6 is rotatably connected to a rocker 7 through a bearing, and the rocker 7 A non-slip sleeve 8 is fixedly sleeved on the surface of the tumbler. In this embodiment, the rocker 7 is rotated so that the rocker 7 drives the rocker 6 to rotate, and the rocker 6 rotates to drive the first screw 5 to rotate.

The anti-loosening device includes a sliding plate 9, the bottom of the sliding plate 9 is bolted with the top of the first slider 4, and a telescopic plate 10 is slidably sleeved inside the sliding plate 9. The telescopic plate 10 A tension spring 11 is arranged between the sliding plate 9 and the sliding plate 9 . In this embodiment, when clamping the workpiece, the telescopic plate 10 is under the action of the tension spring 11 to clamp the first clamping device and the second clamping device. The third clamping device is tightly pressed against the workpiece, so that the workpiece is not loosened.

The first clamping device includes a first semi-circular chute 12 , the first semi-circular chute 12 is opened on the surface of the telescopic plate 10 , and a first semi-circular chute 12 is slidably connected to the inside of the first semi-circular chute 12 . The surface of the first semicircular slide rail 13 is bolted with a first semicircular rotating plate 14. In this embodiment, when clamping the workpiece, it can rotate freely according to the shape of the workpiece, so that the device can be clamped more tightly.

The second clamping device includes a second semicircular chute 16, and the number of the telescopic second semicircular chute 16 is two, and the second semicircular chute 16 is opened on the surface of the first semicircular rotating plate 14, A second semicircular slide rail 15 is slidably connected to the inside of the second semicircular sliding groove 16 , and a second semicircular rotating plate 17 is bolted on the surface of the second semicircular slide rail 15 . In this embodiment, the workpiece is clamped. According to the shape of the workpiece, it can rotate freely, so that the device can be clamped more tightly.

The third clamping device includes a third semi-circular chute 18 , and the number of the third semi-circular chute 18 is two, and the third semi-circular chute 18 is opened on the surface of the second semi-circular rotating plate 17 . , the interior of the third semicircular chute 18 is slidably connected with a third semicircular slide rail 19, the surface of the third semicircular slide rail 19 is bolted with a third semicircular rotating plate 20, and the third semicircular rotating plate 20 is The surface is provided with a first anti-skid pattern 21. In this embodiment, when clamping the workpiece, it can rotate freely according to the shape of the workpiece, so that the device can be clamped more tightly, and the anti-skid pattern increases the distance between the third semicircular rotating plate 20 and the workpiece. Friction to improve clamping stability.

The steering device includes a fixed block 22, the top of the fixed block 22 is bolted to the bottom of the bottom plate 1, the bottom of the fixed block 22 is bolted with a gear 23, and the surface of the gear 23 is rotatably connected with a bearing. In the base 24, a second screw 25 is engaged with the surface of the gear 23, and both ends of the second screw 25 are rotatably connected to the inner wall of the telescopic base 24 through bearings. In this embodiment, the rotation of the second screw 25 drives the The gear 23 rotates, the rotation of the gear 23 drives the fixed block 22 to rotate, and the rotation of the fixed block 22 drives the base plate 1 to rotate, so that the square of the base plate 1 is changed, thereby changing the machining direction of the workpiece.

The second adjusting mechanism includes a rotating rod 26, one end of the rotating rod 26 is bolted to one end of the second screw 25, and the surface of the rotating rod 26 is rotatably sleeved with the inner wall of the base 24 through a bearing, so One end of the rotating rod 26 is bolted with a rotating head 27, and the surface of the rotating cylinder is provided with a second anti-skid pattern 2. In this embodiment, the rotating head 27 is rotated, and the rotating head 27 rotates so that the rotating head 27 drives the rotating rod 26. Rotation, the rotation of the rotating rod 26 drives the second screw 25 to rotate, and the second anti-skid pattern 2 prevents the hand from slipping and improves the convenience of adjustment.

In the foregoing embodiments, the description of each embodiment has its own emphasis. For parts that are not described or described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

To sum up, in the present invention, a fixture for an automatic overturning CNC machine tool is to rotate the rocker 7 so that the rocker 7 drives the rocker 6 to rotate, the rocker 6 rotates to drive the first screw 5 to rotate, and the first screw 5 rotates to drive the first screw 5 to rotate. The slider 4 moves along the first chute 3. Since the threads on the first screw 5 are in opposite directions, the first screw 5 is rotated so that the two first sliders 4 move relative to each other or against each other. Move to the north to make the device clamp or loosen the workpiece, the first clamping device and the second clamping device make the third semicircular rotating plate 20 close to the surface of the workpiece according to the free rotation direction of the shape of the workpiece, and rotate the rotating head 27 , the rotating head 27 rotates so that the rotating head 27 drives the rotating rod 26 to rotate, the rotating rod 26 rotates to drive the second screw 25 to rotate, and the second anti-slip pattern 2 prevents the hand from slipping and improves the convenience of adjustment. The rotation of the second screw 25 drives the gear 23 to rotate. , the rotation of the gear 23 drives the fixed block 22 to rotate, and the rotation of the fixed block 22 drives the base plate 1 to rotate, so that the square of the base plate 1 is changed, so as to achieve the change of the machining direction of the workpiece.

While the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the invention. That said, the methods, systems and apparatus discussed above are examples. Various configurations may omit, substitute or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different from that described, and/or various components may be added, omitted, and/or combined. Furthermore, features described with respect to certain configurations may be combined in various other configurations, eg, different aspects and elements of the configurations may be combined in a similar manner. Furthermore, elements therein may be updated as technology develops, ie, many of the elements are examples and do not limit the scope of the disclosure or the claims.

Specific details are given in the description to provide a thorough understanding of example configurations, including implementations. However, configurations may be practiced without these specific details. For example, well-known circuits, procedures, algorithms, structures and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing descriptions of configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.

In conclusion, it is intended that the above detailed description is to be considered as illustrative rather than restrictive, and it should be understood that these embodiments above should be understood to be merely illustrative of the present invention and not intended to limit the scope of protection of the present invention. After reading the contents of the description of the present invention, the skilled person can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims (9)

1. A clamp for automatic overturning of CNC machine tools is characterized in that: comprising a base plate, a moving device, a first adjusting device, a first clamping device, a second clamping device, a third clamping device, an anti-loosening device, a steering device and a second adjusting device, the moving device is mounted on the top of the bottom plate, the first adjusting device is mounted on one end of the moving device, and the adjusting device is configured to be used in cooperation with the moving device, the The anti-loosening device is installed on the top of the moving device, the first clamping device is installed inside the anti-loosening device, the second clamping device is installed inside the first clamping device, and the The first clamping device is configured to be used in cooperation with the second clamping device, the third clamping device is installed inside the second clamping device, and the third clamping device is configured to be located at the The second clamping device is used in conjunction with the steering device, the steering device is mounted on the bottom of the bottom plate, the second adjusting device is mounted on the right side of the steering device, and the second adjusting device is configured to be located in the steering device. use. 2 . The fixture for an automatic overturning CNC machine tool according to claim 1 , wherein the moving device comprises a first chute, the first chute is opened on the surface of the bottom plate, and the first A first sliding block is slidably connected to the inside of the chute, a first screw rod is threadedly connected to the inside of the first sliding block, and both ends of the first screw rod are rotatably connected to the inner wall of the bottom plate through bearings. 3 . The fixture for an automatic overturning CNC machine tool according to claim 2 , wherein the first adjusting device comprises a rocking handle, and one end of the rocking handle is bolted to one end of the telescopic first screw, so that the One end of the rocker is rotatably connected with a rocker through a bearing, and a surface of the rocker is fixedly sleeved with a non-slip sleeve. 4 . The fixture for an automatic overturning CNC machine tool according to claim 3 , wherein the anti-loosening device comprises a sliding plate, and the bottom of the sliding plate is bolted to the top of the first sliding block, 5 . A telescopic plate is slidably sleeved inside the sliding plate, and a tension spring is arranged between the telescopic plate and the sliding plate. 5 . The fixture for an automatic overturning CNC machine tool according to claim 4 , wherein the first clamping device comprises a first semicircular chute, and the first semicircular chute is opened on the telescopic plate. 6 . The surface of the first semicircular sliding groove is slidably connected with a first semicircular sliding rail, and the surface of the first semicircular sliding rail is bolted with a first semicircular rotating plate. 6 . The fixture for an automatic overturning CNC machine tool according to claim 5 , wherein the second clamping device comprises a second semicircular chute, and the number of the telescopic second semicircular chute is two, 6 . The second semicircular sliding groove is opened on the surface of the first semicircular rotating plate, and a second semicircular sliding rail is slidably connected inside the second semicircular sliding groove, and the surface of the second semicircular sliding rail is bolted with a second semicircular sliding rail. Two semicircular rotating plates. 7 . The fixture for an automatic overturning CNC machine tool according to claim 6 , wherein the third clamping device comprises a third semicircular chute, and the number of the third semicircular chute is two. 8 . , the third semicircular chute is opened on the surface of the second semicircular rotating plate, the interior of the third semicircular chute is slidably connected with a third semicircular slide rail, and the surface of the third semicircular slide rail is bolted with The third semicircular rotating plate, the surface of the third semicircular rotating plate is provided with a first anti-skid pattern. 8 . The fixture for an automatic overturning CNC machine tool according to claim 7 , wherein the steering device comprises a fixed block, the top of the fixed block is bolted to the bottom of the bottom plate, and the fixed block A gear is bolted to the bottom of the gear, the surface of the gear is rotatably connected to the base through a bearing, a second screw is engaged on the surface of the gear, and both ends of the second screw are connected to the inner wall of the telescopic base through a bearing. 9 . The fixture for an automatic overturning CNC machine tool according to claim 8 , wherein the second adjusting mechanism comprises a rotating rod, and one end of the rotating rod is bolted to one end of the second screw rod, 10 . The surface of the rotating rod is rotatably sleeved with the inner wall of the base through a bearing, one end of the rotating rod is bolted with a rotating head, and the surface of the rotating cylinder is provided with a second anti-skid pattern.

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