CN114619271A - Table top clamping device capable of rotating at multiple angles and using method thereof - Google Patents

Abstract

The invention discloses a table top clamping device capable of rotating at multiple angles and a using method thereof, and relates to the technical field of machining equipment. The clamping device comprises a base, a bottom plate, a sleeve seat and a clamping sleeve for clamping a workpiece; the bottom plate is arranged at the bottom of the base, and a turntable for the base to rotate in the Z-axis direction is arranged at the bottom of the bottom plate; the sleeve seat is arranged on one side of the base, and the clamping sleeve can be rotatably arranged in the sleeve seat along the X-axis direction; a main shaft rod which can rotate along the Y-axis direction and is fixedly connected with the sleeve seat is arranged in the base; after the workpiece is clamped on the clamping sleeve, the workpiece can rotate along the X axis, the Y axis and the Z axis respectively by rotating the clamping sleeve, the main shaft rod and the bottom plate. The table top clamping device capable of rotating at multiple angles and the using method thereof can meet the machining operation requirements of sawing, filing and the like at different operation positions and different machining angles, are simple and quick to operate, and greatly improve the machining efficiency and the machining precision.

Description

A multi-angle rotatable table top clamping device and using method thereof

technical field

The invention relates to the technical field of machining equipment, in particular to a multi-angle rotatable table top clamping device and a method for using the same.

Background technique

The basic operation of machining is fitter. At present, the process of sawing, filing, and chisel of the fitter is completed on the vise. The vise is also the most widely used table clamping device at present, and the use of the vise is convenient and simple. However, the clamping of the workpiece in the vise is unidirectional, and the workpiece needs to be re-clamped every time the position or angle of the workpiece is changed. For example, when a square tube is sawed at different positions on the front and back, when the front side of the square tube is sawed, you need to loosen the vise, remove the square tube from the vise, turn it over to the reverse side and clamp the vise again, and then Carry out sawing operations; for example, when hexagonal filing, the operator will file in the horizontal direction, and the workpiece needs to be re-clamped every time a surface is filed, and the corner of the clamp is manually rotated each time, which is difficult to achieve. precision requirements.

In summary, the currently used vise does not have the function of changing the angle, so it is necessary to constantly re-clamp the workpiece to complete the processing operations at different positions and different angles. , and the angle of each clamping is also observed by eyes, which means that a lot of processing time is wasted and the processing accuracy is difficult to guarantee. Therefore, there is a need for a table clamping device that can change the angle quickly and control accurately.

SUMMARY OF THE INVENTION

In order to solve the problem that the existing vise needs to re-clamp the workpiece when it is used in different operating positions and different processing angles, the present invention provides a multi-angle rotatable table top clamping device and a method of using the same, so that the workpiece can be clamped in the clamping position. After the sleeve, it can be rotated along the three coordinate axes of the three-dimensional space, and the rotation angle accuracy is high, which can meet the requirements of machining operations such as sawing and filing at different operating positions and different processing angles, and does not need to reassemble the workpiece. The angle of the workpiece can be adjusted by simply rotating the device, the operation is simple and fast, and the processing efficiency and processing accuracy can be greatly improved.

The invention provides the following technical solutions:

In a first aspect, the present invention provides a multi-angle rotatable table top clamping device, comprising a base, a base plate, a sleeve seat and a clamping sleeve for clamping a workpiece; the base plate is installed at the bottom of the base, The bottom of the bottom plate is provided with a turntable for the base to rotate in the Z-axis direction; the sleeve seat is arranged on one side of the base, and the clamping sleeve is rotatably installed in the sleeve seat along the X-axis direction, and clamps Both ends of the sleeve extend to the outside of the sleeve base; the base is provided with a main shaft rod that can rotate along the Y-axis direction, one end of the main shaft rod is fixedly connected to the sleeve base through the base, and the other end extends to the outside of the base; After the workpiece is clamped on the clamping sleeve, the workpiece can be rotated along the X-axis, Y-axis and Z-axis respectively by rotating the clamping sleeve, the spindle rod and the base plate.

Preferably, it also includes a first hand wheel for restricting the rotation of the spindle rod, the end of the spindle rod extending to the outside of the base is provided with an external thread, and the first hand wheel is threaded with the spindle rod to limit the rotation of the spindle rod; A hand wheel is convenient to control whether the spindle rod can rotate in the base, so as to ensure the rotation angle accuracy and machining accuracy of the workpiece on the Y axis.

Preferably, it also includes a second handwheel for restricting the rotation of the turntable; the turntable is installed in a groove at the bottom of the bottom plate; the second handwheel is installed on the side of the bottom plate through a screw connection, and one end of the second handwheel extends through the side wall of the bottom plate. into the limit groove on the edge of the turntable; by setting the second handwheel, it is convenient to control whether the base plate can rotate around the turntable, so as to ensure the rotation angle accuracy and machining accuracy of the workpiece on the Z axis.

Preferably, it also includes a third hand wheel for restricting the rotation of the clamping sleeve, the third hand wheel is installed on the top of the sleeve seat through a threaded connection, and one end of the third hand wheel penetrates the top surface of the sleeve seat and the clamping sleeve By setting the third hand wheel, it is convenient to control whether the clamping sleeve can rotate around the sleeve seat, so as to ensure the rotation angle accuracy and machining accuracy of the workpiece on the X axis.

Preferably, the clamping sleeve is cylindrical as a whole, and a long waist hole for clamping the workpiece is provided inside the clamping sleeve, which is convenient for clamping the workpiece.

Preferably, the clamping sleeve is provided with a clamping groove near its front end, and the clamping groove is provided with an upper clamping block and a lower clamping block that can move up and down; the top and bottom of the clamping sleeve are respectively installed with rotating connections. The upper clamping handwheel and the lower clamping handwheel; the bottom of the upper clamping handwheel is threadedly connected to the upper clamping block through the clamping sleeve; the top of the lower clamping handwheel is threadedly connected to the lower clamping block through the clamping sleeve; The upper clamping block, the lower clamping block and the clamping sleeve are surrounded by jaws for clamping the workpiece. Rotating the upper clamping handwheel and the lower clamping handwheel can drive the upper clamping block and the lower clamp which are threadedly matched with them. The block moves to adjust the size of the jaws to clamp the workpiece; the size of the jaws can be adjusted by setting the upper clamping handwheel and the lower clamping handwheel, which is convenient for fixing the workpiece in the clamping sleeve.

Preferably, the side of the base away from the sleeve seat is provided with a first angle scale along the periphery of the main shaft rod; one end of the main shaft rod is provided with a first angle mark corresponding to the first angle scale; the sleeve seat is close to the clamping groove There is a second angle scale along the periphery of the clamping sleeve on the one side of the sleeve, and a second angle mark corresponding to the second angle scale is arranged on the upper clamping handwheel; the top of the sleeve seat is also provided with a bubble level; by referring to the first The angle ruler, the second angle ruler and the bubble level can adjust the rotation angle of the workpiece more accurately and quickly, making the use of the table clamping device more convenient and fast.

Preferably, the top of the base is provided with a storage slot for placing tools, which can save space for placing tools.

Preferably, a cutting board for beating the workpiece is installed on the top of the storage slot, the length of the cutting board is less than the length of the storage slot, and the width of the cutting board is the same as the width of the base. Above the storage slot, a buffer space can be formed between the cutting board and the spindle hole in the base for installing the spindle rod, so as to prevent the spindle hole from being deformed when the workpiece is hammered.

On the other hand, the present invention provides a method for using the above-mentioned multi-angle rotatable table top clamping device, comprising the following steps:

S1: Adjust the rotation angle of the base in the Z-axis direction: loosen the second handwheel, rotate the base to make it rotate along the Z-axis direction, and re-tighten the second handwheel after the adjustment is complete;

S2: Adjust the rotation angle of the sleeve seat in the Y-axis direction: loosen the first handwheel, rotate the sleeve seat with reference to the bubble level to make it rotate to the horizontal position, or refer to the relative position of the first angle mark and the first angle ruler , rotate the sleeve seat to the specified angle, and re-tighten the first handwheel after the adjustment is completed;

S3: Install the workpiece: Extend the workpiece into the clamping sleeve, and drive the upper and lower clamping blocks to move through the upper and lower clamping handwheels respectively to adjust the size of the jaws, so as to clamp the workpiece in in the clamping sleeve;

S4: processing the workpiece;

S5: When it is necessary to change the rotation angle of the workpiece in the X-axis direction, loosen the third handwheel, refer to the relative position of the second angle mark and the second angle scale, rotate the clamping sleeve to drive the workpiece to rotate to the specified angle, and adjust Re-tighten the third handwheel after completion;

S6: Continue to process the workpiece;

S7: S2 or S5 can be repeated according to the needs of the processing process until the processing is completed.

Beneficial effects of the present invention:

(1) In the present invention, by setting the sleeve seat, the spindle rod and the turntable, the workpiece clamped inside the clamping sleeve can be rotated in the directions of the X-axis, Y-axis and Z-axis in three-dimensional space, so as to satisfy different operating positions. , The machining operation requirements such as sawing and filing at different processing angles solve the need to repeatedly clamp the workpiece in the prior art to meet the processing requirements of different operating positions and different processing angles; and the device has high rotation angle accuracy, simple operation, Fast, can greatly improve the processing efficiency and processing accuracy.

(2) In order to further improve the rotation angle accuracy of the table clamping device, the present invention is provided with a first hand wheel, a second hand wheel and a third hand wheel, respectively, to perform the rotation of the workpiece on the Y axis, the Z axis and the X axis. control, thereby increasing the workpiece in

The rotation angle accuracy of the three coordinate axes of the three-dimensional space.

(3) In order to adjust the rotation angle of the workpiece conveniently and quickly, the present invention is also provided with a first angle ruler, a second angle ruler and a bubble level, and is provided with relative first angle marks and second angle marks, so that it can be more accurate. , Quickly adjust the rotation angle of the workpiece, making the use of the table clamping device more convenient and fast.

Description of drawings

Fig. 1 is the structural front view of the table clamping device of the present invention;

Fig. 2 is the structural side view of the table clamping device of the present invention;

3 is a top view of the structure of the table clamping device of the present invention;

Fig. 4 is the A-A sectional view in Fig. 3 of the present invention;

Fig. 5 is the B-B direction sectional view in Fig. 1 of the present invention;

Fig. 6 is the C-C sectional view in Fig. 3 of the present invention;

Fig. 7 is the D-D direction sectional view in Fig. 3 of the present invention;

FIG. 8 is a schematic view of the bottom surface structure of the upper jaw plate of the present invention.

Description of reference numbers:

1. base; 101, first hand wheel; 102, cutting board; 103, storage slot; 104, spindle rod; 1041, first angle mark; 105, first angle ruler; 2, bottom plate; 201, second hand wheel ; 202, turntable; 3, sleeve seat; 301, third hand wheel; 302, bubble level; 4, clamping sleeve; 401, lower clamping hand wheel; 402, lower clamping block; 403, jaws; 404 , Upper clamping handwheel; 4041, second angle mark; 405, upper clamping block; 406, second angle ruler; 407, clamping groove.

Detailed ways

As shown in Figure 1, Figure 2, Figure 3, a multi-angle rotatable table top clamping device includes a base 1, a bottom plate 2, a sleeve seat 3, a clamping sleeve 4 for clamping workpieces, a first A handwheel 101 , a second handwheel 201 and a third handwheel 301 .

The bottom plate 2 is installed on the bottom of the base 1. As shown in FIG. 4, the bottom of the bottom plate 2 is provided with a groove, and a turntable 202 for the base 1 to rotate in the Z-axis direction is installed in the groove; the second hand wheel 201 is connected by a screw thread Removably installed on the side of the bottom plate 2, after tightening the second hand wheel 201, one end of the second hand wheel 201 penetrates the side wall of the bottom plate 2 and protrudes into the limit groove located at the edge of the turntable 202, thereby restricting the rotation of the turntable 202. The limit groove can prevent the workpiece from being separated from the turntable 202 due to a large force during the machining process; by installing the second handwheel 201 , the rotation angle accuracy of the base 1 in the Z-axis direction can be ensured.

The sleeve seat 3 is arranged on one side of the base 1, and the clamping sleeve 4 is rotatably installed in the sleeve seat 3 along the X-axis direction, while the clamping sleeve 4 will not move axially along the sleeve seat 3; Both ends of the clamping sleeve 4 extend to the outside of the sleeve seat 3 so as to clamp the workpiece.

5, 6, and 7, the clamping sleeve 4 is cylindrical as a whole, and a long waist hole for clamping the workpiece is provided inside the clamping sleeve 4; Its front end is provided with a clamping groove 407, and the clamping groove 407 is provided with an upper clamping block 405 and a lower clamping block 402 that can move up and down, the upper clamping block 405 is placed above the lower clamping block 402, and the top and bottom of the clamping sleeve 4 are The upper clamping handwheel 404 and the lower clamping handwheel 401 are respectively installed by rotating connection, and the ends of the upper clamping handwheel 404 and the lower clamping handwheel 401 close to the clamping sleeve 4 are provided with screws, and the upper clamping handwheel 401 is provided with a screw rod. The end of the handwheel 404 with the screw thread is connected with the upper clamping block 405 through the clamping sleeve 4; The upper clamping handwheel 404 and the lower clamping handwheel 401 can drive the upper clamping block 405 and the lower clamping block 402 which are threadedly matched with them to move up and down.

The bottom of the upper clamping block 405 is provided with an upper jaw plate, and the top of the lower clamping block 402 is provided with a lower jaw plate. Mouth 403; both the upper jaw plate and the lower jaw plate are made of steel, which can increase the mechanical strength of the upper jaw plate and the lower jaw plate; the lower surface of the upper jaw plate and the upper surface of the lower jaw plate are provided with anti-skid The groove, as shown in FIG. 8 , the anti-skid groove includes a group of first grooves at an angle of 45 degrees with the horizontal line and a group of second grooves at an angle of 135 degrees with the horizontal line, and the first groove is formed. The cross distribution with the second groove is "chessboard-like", and the friction between the upper jaw plate and the lower jaw plate is increased by setting the anti-slip groove, so that the workpiece clamping is more stable; when clamping the workpiece, the workpiece is removed from the jaws. 403 extends into the long waist hole, and by rotating the upper clamping handwheel 404, the upper clamping block 405 threadedly matched with the upper clamping handwheel 404 moves downward in the clamping groove 407; The lower clamping block 402 screwed with the lower clamping handwheel 401 moves upward in the clamping groove 407 to reduce the size of the jaw 403, thereby fixing the workpiece in the jaw 403 to complete the clamping of the workpiece.

The third handwheel 301 is detachably installed on the top of the sleeve seat 3 through a screw connection; the side of the sleeve seat 3 close to the clamping groove 407 is provided with a second angle scale 406 along the periphery of the clamping sleeve 4, and the upper clamping handwheel 404 is provided with a second angle mark 4041 corresponding to the second angle scale 406; referring to the relative position between the second angle mark 4041 and the second angle scale 406, it is convenient to determine the rotation angle of the clamping sleeve 4 along the X axis, Therefore, the clamping sleeve 4 can be rotated to a specified angle accurately and quickly; after the adjustment of the rotation angle of the clamping sleeve 4 is completed, when the third handwheel 301 is tightened, one end of the third handwheel 301 penetrates the top surface of the sleeve seat 3 It abuts against the clamping sleeve 4, thereby preventing the clamping sleeve 4 from continuing to rotate in the sleeve seat 3, so as to ensure the rotation angle accuracy of the workpiece in the X-axis direction.

The base 1 is provided with a main shaft rod 104 that can rotate along the Y-axis direction. One end of the main shaft rod 104 penetrates the base 1 and is fixedly connected to the sleeve seat 3, and the other end is provided with an external thread. The end of the main shaft rod 104 provided with the external thread extends To the outside of the base 1 and threadedly connected with the first hand wheel 101; the side of the base 1 away from the sleeve seat 3 is provided with a first angle scale 105 along the periphery of the main shaft rod 104; one end of the main shaft rod 104 is provided with the first angle scale The first angle mark 1041 corresponding to 105; when it is necessary to adjust the rotation angle of the sleeve seat 3 in the Y-axis direction, the first hand wheel 101 can be loosened, and by referring to the first angle mark 1041 and the first angle scale 105 Relatively positioned, quickly and accurately rotate the sleeve base 3 to a specified angle; in addition, the top of the sleeve base 3 is also provided with a bubble level 302, if you need to adjust the sleeve base 3 to a horizontal position, you can directly refer to the bubble level 302 , quickly adjust the sleeve seat 3 to the horizontal position; after the rotation angle of the sleeve seat 3 is adjusted, tighten the first hand wheel 101, so that the spindle rod 104 is fixed in the base 1, so that the sleeve seat 3 is Fixed to ensure the rotation angle accuracy of the workpiece in the Y-axis direction.

The top of the base 1 is also provided with a storage slot 103 for placing tools. The top of the storage slot 103 is installed with a cutting board 102 for beating the workpiece. The length of the cutting board 102 is less than the length of the storage slot 103. , so that the storage slot 103 will not be completely blocked by the cutting board 102, and small tools such as drills and taps can be stored in the storage slot 103; the surface of the cutting board 102 forms a special area for beating workpieces. A buffer space is formed between the anvil 102 and the spindle hole in the base 1 for installing the spindle rod 104 to prevent the spindle hole from being deformed when the workpiece is hammered.

After the workpiece is clamped in the clamping sleeve 4, by rotating the clamping sleeve 3, the spindle rod 104 and the base plate 2, the workpiece can be rotated along the X-axis, Y-axis and Z-axis respectively, thereby avoiding repeated clamping of the workpiece for many times. It can adapt to machining operations of different operating positions and different rotation angles.

A method for using the above-mentioned multi-angle rotatable table top clamping device, comprising the following steps:

S1: Adjust the rotation angle of the base 1 in the Z-axis direction: loosen the second handwheel 201, rotate the base 1 to rotate along the Z-axis direction, and re-tighten the second handwheel 201 after the adjustment is completed;

S2: Adjust the rotation angle of the sleeve seat 3 in the Y-axis direction: Loosen the first hand wheel 101, rotate the sleeve seat 3 to the horizontal position with reference to the bubble level 302, or refer to the first angle mark 1041 and the first The relative position of the angle scale 105, rotate the sleeve seat 3 to the specified angle, and re-tighten the first hand wheel 101 after the adjustment is completed;

S3: Install the workpiece: Extend the workpiece into the clamping sleeve 4, and drive the upper clamping block 405 and the lower clamping block 402 to move through the upper clamping handwheel 404 and the lower clamping handwheel 401 respectively to adjust the size of the jaw 403. Thereby, the workpiece is clamped in the clamping sleeve 4;

S4: Machining the workpiece;

S5: When the rotation angle of the workpiece in the X-axis direction needs to be changed, loosen the third handwheel 301, refer to the relative position of the second angle mark 4041 and the second angle scale 406, and rotate the clamping sleeve 4 to drive the workpiece to rotate to Specify the angle, and re-tighten the third handwheel 301 after the adjustment is completed;

S6: Continue to process the workpiece;

S7: S2 or S5 can be repeated according to the needs of the processing process until the processing is completed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still understand the foregoing embodiments. The technical solutions described are modified, or some technical features thereof are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a but multi-angle rotating's mesa clamping device which characterized in that: the clamping device comprises a base (1), a bottom plate (2), a sleeve seat (3) and a clamping sleeve (4) for clamping a workpiece; the bottom plate (2) is arranged at the bottom of the base (1), and a turntable (202) which can be used for the base (1) to rotate in the Z-axis direction is arranged at the bottom of the bottom plate (2); the sleeve seat (3) is arranged on one side of the base (1), the clamping sleeve (4) can be rotatably installed in the sleeve seat (3) along the X-axis direction, and two ends of the clamping sleeve (4) extend out of the sleeve seat (3); a main shaft rod (104) capable of rotating along the Y-axis direction is arranged in the base (1), one end of the main shaft rod (104) penetrates through the base (1) to be fixedly connected with the sleeve seat (3), and the other end of the main shaft rod extends to the outside of the base (1); after the workpiece is clamped in the clamping sleeve (4), the workpiece can be rotated along the X axis, the Y axis and the Z axis respectively by rotating the clamping sleeve (3), the main shaft rod (104) and the bottom plate (2).

2. The multi-angle rotatable table top clamping device of claim 1, wherein: the base is characterized by further comprising a first hand wheel (101) used for limiting the rotation of the main shaft rod (104), wherein an external thread is arranged at one end, extending to the outside of the base (1), of the main shaft rod (104), and the first hand wheel (101) is in threaded fit with the main shaft rod (104) to limit the rotation of the main shaft rod (104).

3. The multi-angle rotatable table top clamping device of claim 2, wherein: the second hand wheel (201) is used for limiting the rotation of the turntable (202); the turntable (202) is arranged in a groove at the bottom of the bottom plate (2); the second hand wheel (201) is installed on the side face of the base plate (2) through threaded connection, and one end of the second hand wheel (201) penetrates through the side wall of the base plate (2) and extends into a limiting groove located on the edge of the rotary disc (202).

4. The table top clamping device of claim 3, wherein: the clamping sleeve is characterized by further comprising a third hand wheel (301) used for limiting the rotation of the clamping sleeve (4), the third hand wheel (301) is installed at the top of the sleeve seat (3) through threaded connection, and one end of the third hand wheel (301) penetrates through the top surface of the sleeve seat (3) and is abutted to the clamping sleeve (4).

5. The multi-angle rotatable table top clamping device of claim 4, wherein: the whole clamping sleeve (4) is cylindrical, and a long waist hole which penetrates through the clamping sleeve (4) and is used for clamping a workpiece is formed in the clamping sleeve.

6. The table top clamping device of claim 5, wherein: a clamping groove (407) is formed in the clamping sleeve (4) close to the front end of the clamping sleeve, and an upper clamping block (405) and a lower clamping block (402) which can move up and down are arranged in the clamping groove (407); the top and the bottom of the clamping sleeve (4) are respectively connected and provided with an upper clamping hand wheel (404) and a lower clamping hand wheel (401) through rotation; the bottom of the upper clamping hand wheel (404) penetrates through the clamping sleeve (4) to be in threaded connection with the upper clamping block (405); the top of the lower clamping hand wheel (401) penetrates through the clamping sleeve (4) and is in threaded connection with the lower clamping block (402); a jaw (403) for clamping a workpiece is defined by the upper clamping block (405), the lower clamping block (402) and the clamping sleeve (4), and the upper clamping hand wheel (404) and the lower clamping hand wheel (401) are rotated to drive the upper clamping block (405) and the lower clamping block (402) which are in threaded fit with the upper clamping block and the lower clamping hand wheel to move so as to adjust the size of the jaw (403) to clamp the workpiece.

7. The table top clamping device of claim 6, wherein: a first angle scale (105) is arranged on one side, far away from the sleeve seat (3), of the base (1) along the periphery of the main shaft rod (104); one end of the main shaft rod (104) is provided with a first angle mark (1041) corresponding to the first angle scale (105); a second angle scale (406) is arranged on one side, close to the clamping groove (407), of the sleeve seat (3) along the periphery of the clamping sleeve (4), and a second angle mark (4041) corresponding to the second angle scale (406) is arranged on the upper clamping hand wheel (404); the top of the sleeve seat (3) is also provided with a bubble level meter (302).

8. The multi-angle rotatable table top clamping device as claimed in any one of claims 1 to 7, wherein: the top of the base (1) is provided with a storage groove (103) for placing tools.

9. The multi-angle rotatable table top clamping device of claim 8, wherein: the top of the article placing groove (103) is provided with a cutting board (102) for hammering a workpiece, the length of the cutting board (102) is smaller than that of the article placing groove (103), and the width of the cutting board (102) is the same as that of the base (1).

10. A method of using the multi-angle rotatable table top clamping device of claim 7, wherein: the method comprises the following steps:

s1, adjusting the rotation angle of the base (1) in the Z-axis direction: loosening the second hand wheel (201), rotating the base (1) to enable the base to rotate along the Z-axis direction, and re-tightening the second hand wheel (201) after adjustment is completed;

s2, adjusting the rotation angle of the sleeve seat (3) in the Y-axis direction: unscrewing a first hand wheel (101), rotating a sleeve seat (3) to a horizontal position according to the bubble level (302), or rotating the sleeve seat (3) to a specified angle according to the relative position of a first angle mark (1041) and a first angle scale (105), and screwing the first hand wheel (101) again after adjustment is finished;

s3, workpiece installation: a workpiece is stretched into the clamping sleeve (4), and an upper clamping block (405) and a lower clamping block (402) are driven to move through an upper clamping hand wheel (404) and a lower clamping hand wheel (401) respectively so as to adjust the size of a jaw (403), so that the workpiece is clamped in the clamping sleeve (4);

s4, processing the workpiece;

s5, when the rotation angle of the workpiece in the X-axis direction needs to be changed, the third hand wheel (301) is unscrewed, the workpiece is driven to rotate to a specified angle by rotating the clamping sleeve (4) according to the relative position of the second angle mark (4041) and the second angle scale (406), and the third hand wheel (301) is screwed again after the adjustment is finished;

s6, continuing to process the workpiece;

and S7, repeating S2 or S5 according to the requirement of the processing process until the processing is finished.

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