Clamping device of combined type slotting tool for metal cutting

Abstract

The invention relates to the technical field of slotting cutter installation, in particular to a clamping device of a combined type slotting cutter for metal cutting, which comprises an installation seat, a fastening bolt and a positioning bolt, the installation seat is provided with a first threaded hole and a second threaded hole, the first threaded hole and the second threaded hole are coaxially arranged, the fastening bolt is in threaded connection with the first threaded hole, and the positioning bolt is in threaded connection with the second threaded hole. The positioning bolt is in threaded connection with the second threaded hole, the positioning bolt is arranged in the fastening bolt in a sleeved mode, a positioning piece is arranged on the mounting base, a first positioning rod and a second positioning rod are arranged on the positioning piece, and a pressure sensor is arranged between the positioning rod and the positioning piece. And when the positioning piece is extruded by the positioning bolt, the positioning rod I and the positioning rod II are pushed to move in the vertical direction. The workbench and the cutter are positioned through the first positioning rod and the second positioning rod correspondingly, so that the cutter can be positioned in the clamping process, the mounting precision of the cutter can be guaranteed, and the replacement efficiency of the cutter can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shaper cutter installation, and specifically to a clamping device for a composite broaching tool for metal cutting. Background Art

[0002] Broaching is a cutting method for metal cutting achieved through reciprocating movement, and is commonly used for machining slots, gears, etc. When machining multi-stage gears such as double-stage gears and triple-stage gears, there is a symmetry requirement between the tooth or tooth groove center of one stage of gear and the tooth or tooth groove center of another stage of gear on the same part. Therefore, during the machining process, when replacing the tool, it is necessary to adjust the circumferential angle of the tool so that the circumferential angle of the new tool is the same as that of the old tool, making the centers of multiple stages of teeth or tooth grooves of the multi-stage gear symmetrical after replacing the tool. With the existing adjustment means, when adjusting the circumferential angle of the newly installed shaper cutter, the adjustment speed is slow, and the skill requirements for the operator are relatively high, seriously affecting the effective utilization rate of the broaching machine.

[0003] In order to improve the tool replacement speed, the utility model with the application number CN202420809741.3 provides a shaper cutter installation and calibration device. This calibration device is connected to the tool through a permanent magnet, and through the calibration bar inside the device to limit the shaper cutter body in the radial direction. Furthermore, through the contact between the micrometer and the calibration bar, the installation of the shaper cutter body can be fully calibrated, thus ensuring that the circumferential angle of the newly installed tool is the same as that of the original tool, and thus ensuring the machining accuracy of the gear. However, when adjusting the circumferential angle of the tool, it is necessary to reciprocally move the broaching machine workbench along the X direction and check the distance bias between the micrometer and the calibration bar to determine whether the circumferential angle of the newly installed tool is adjusted in place. Therefore, the adjustment process is still relatively complex.

[0004] Therefore, in order to improve the replacement speed of the broaching tool during the machining of multi-stage gears, a clamping device for a composite broaching tool for metal cutting is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a clamping device for a composite broaching tool for metal cutting. In order to improve the replacement speed of the broaching tool during the machining of multi-stage gears, the present invention positions the workbench and the tool through the first positioning rod and the second positioning rod respectively, so that the tool can be positioned during the clamping process, which can not only ensure the installation accuracy of the tool, but also improve the tool replacement efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions: A clamping device for a composite shaping tool for metal cutting, comprising a mounting base, a fastening bolt, and a positioning bolt. The mounting base is provided with a first threaded hole and a second threaded hole. The first threaded hole and the second threaded hole are coaxially arranged. The fastening bolt is threadedly connected to the first threaded hole, and the positioning bolt is threadedly connected to the second threaded hole. The positioning bolt is sleeved inside the fastening bolt. The mounting base is provided with a positioning member. The positioning member is provided with a first positioning rod and a second positioning rod, and a pressure sensor is arranged between the first positioning rod and the positioning member. When the positioning member is extruded by the positioning bolt, the first positioning rod and the second positioning rod are pushed to move in the vertical direction.

[0007] By setting the first positioning rod to fit with the workbench, the circumferential direction angle of the spindle can be quickly judged through the value displayed by the pressure sensor. Then, through the setting of the second positioning rod, the circumferential direction angle of the tool is always consistent with the circumferential direction angle of the spindle. Therefore, when replacing the tool, the circumferential direction angle of the tool can be quickly adjusted. Through the setting of the positioning member and the positioning bolt, after clamping the tool, the first positioning rod and the second positioning rod can move in the vertical direction, so as to move away from above the tool, thus not interfering with the shaping operation of the tool. After removing the positioning bolt, the positioning member loses the extrusion of the positioning bolt and the positioning block can be reset. At this time, when reinstalling the tool, as long as the first positioning rod fits with the workbench and the tool contacts the second positioning rod, it can be ensured that the circumferential direction angle of the tool is the same as that of the tool processed before. Therefore, this method is simpler and more convenient, effectively improving the effective utilization rate of the gear shaper, and this method has a simple structure and low cost. By extruding the fastening bolt with the positioning bolt, it can play a role in preventing loosening, preventing the tool from loosening during the processing, and ensuring the stability of the gear shaper during operation.

[0008] Preferably, the positioning member includes a first chute, a second chute, a first slider, and a second slider. The mounting base is provided with a first chute and a second chute. The first slider and the second slider are respectively slidably installed inside the first chute and the second chute. The first slider and the second slider are both elastically connected to the mounting base. The first slider and the second slider extend into the second threaded hole. The number of the first positioning rods is 2, and they are symmetrically slidably installed on the first slider. An extrusion spring is connected between the first positioning rod and the first slider. The pressure sensor is arranged between the extrusion spring and the mounting base. The second positioning rod is an L-shaped rod, and the end of the second positioning rod is connected to the second slider through an adjusting bolt.

[0009] Through the cooperation of two positioning rods and the workbench, when the displayed pressures of the pressure sensors are the same, the circumferential angle of the main shaft is always the same as that before tool change. By fitting the second positioning rod with the tool, the circumferential angle of the tool can be made the same as that of the main shaft, thus ensuring that the circumferential angles are the same after tool change. During this process, when the pressures of the pressure sensors are inconsistent, just rotate the main shaft to observe the change of the pressure value of the pressure sensor until the displayed numbers of the pressure sensors are the same, then stop the rotation of the main shaft, thereby ensuring the rapid installation of the tool and effectively improving the installation speed.

[0010] Preferably, a ring groove is formed in the fastening bolt, and a rubber pad is arranged inside the ring groove, and the rubber pad protrudes 2-4 mm from the ring groove.

[0011] Through the arrangement of the rubber pad, the friction between the fastening bolt and the tool can be increased. Thus, when the fastening bolt is rotated, the tool can be driven to rotate, so that the tool automatically fits with the second positioning rod. When the staff locks the tool, the staff does not need to hold the tool by hand to ensure the positioning of the tool, thereby avoiding the problems that the staff's hand-held tool affects the operation and causes the tool to scratch the staff. After being extruded, the rubber pad can increase the locking force of the fastening bolt, thereby improving the clamping effect on the tool and ensuring the stability during the operation of the gear shaper.

[0012] Preferably, conical positioning grooves are arranged along the radial direction of the mounting base below the first sliding groove and the second sliding groove, and a positioning plate matched with the positioning grooves is arranged on the second slider.

[0013] The arrangement of the positioning grooves can, when the first slider and the second slider move below the first sliding groove or the second sliding groove, through the cooperation of the positioning plate and the positioning grooves, position the first positioning rod and the second positioning rod, thereby avoiding the problem that the positions of the first positioning rod and the second positioning rod are offset due to the sliding clearance of the slider, resulting in the offset of the circumferential angle after tool change and thus generating machining errors. The arrangement of the positioning grooves can still limit the swing of the first positioning rod and the second positioning rod due to the rotation clearance of the first slider and the second slider even after the positioning plate or the positioning grooves are worn. In this way, after wear, the angle can be re-adjusted and still can be used continuously, thereby effectively improving the service life of the clamping device.

[0014] Preferably, the first sliding groove and the second sliding groove are obliquely inclined upward along the axis direction of the rotating shaft, and the first sliding groove and the second sliding groove are respectively matched with the first slider and the second slider on one side of the outer edge of the rotating shaft.

[0015] By setting the first chute and the second chute to be inclined obliquely upward along the axis direction of the rotating shaft, when the positioning bolt is rotated, the first slider and the second slider can be pushed to move obliquely upward, so that the first positioning rod and the second positioning rod are far away from directly above the cutting surface of the processing tool. At this time, the normal operation of the tool will not be interfered, and the moving distance is small, thereby reducing the grooving length of the first chute and the second chute, so as to ensure the strength of the mounting seat. The first chute and the second chute are respectively matched with the first slider and the second slider on one side of the outer edge of the rotating shaft. When the first slider and the second slider slide, the first slider and the second slider can respectively fall into the first chute and the second chute, so as to prevent the iron filings generated during processing from entering the positioning groove and affecting the positioning accuracy of the first positioning rod and the second positioning rod, thereby ensuring the processing accuracy of the gear shaper.

[0016] Preferably, the width of the second chute is 2-3 mm larger than the width of the second slider. The side surface of the positioning groove facing the rotation direction of the fastening bolt is the positioning surface. An extrusion block is elastically connected to the inner wall of the second chute, and the elastic force direction of the extrusion block on the second slider faces the positioning surface.

[0017] By setting the width of the second chute to be 2-3 mm larger than the width of the second slider, the second slider can move along the radial direction of the second chute. The side surface of the positioning groove facing the rotation direction of the fastening bolt is the positioning surface, and the inclination direction of the inclined section is parallel to the positioning surface. Therefore, the extrusion block can squeeze the second slider to move towards the positioning surface side, and then make the first positioning rod move obliquely upward along the second positioning surface, so that the second positioning rod is separated from the tool, thus avoiding the problem of damaging the tool when the second positioning rod moves upward.

[0018] Preferably, sealing air bags are provided on the first slider and the second slider. A protection air bag is arranged at the sliding part of the first positioning rod on the first slider. A channel is arranged inside the first slider, and the sealing air bag is communicated with the protection air bag through the channel.

[0019] Through the setting of the sealing air bag, the entry of cutting fluid can be avoided, so as to prevent impurities in the cutting fluid from entering the positioning groove and affecting the positioning effect of the first positioning rod and the second positioning rod. Through the setting of the protection air bag, when the sealing air bag is squeezed, the protection air bag expands, so as to seal the sliding part of the first positioning rod, thus preventing the liquid from contacting the pressure sensor and affecting the detection accuracy of the pressure sensor. Through the setting of the sealing air bag, the vibration generated by the first slider and the second slider due to the movement of the main shaft during the processing can be reduced, so as to effectively improve the service life of the parts. The expansion of the protection air bag can also reduce the vibration of the first positioning rod, so as to ensure the positioning accuracy of the first positioning rod.

[0020] Preferably, the head of the adjusting bolt is located above, and the rotation direction of the adjusting bolt is opposite to the rotation direction of the fastening bolt.

[0021] The rotation direction of the adjusting bolt is opposite to that of the fastening bolt. When initially installing the second positioning rod, rotating the adjusting bolt can make the adjusting bolt swing towards the tool side, so that the second positioning rod rotates during installation, making the adjustment more convenient. The head of the adjusting bolt is located above. When rotating the adjusting bolt, the wrench always presses down on the second positioning rod, so as to prevent the positioning plate from disengaging from the positioning groove due to the upward thrust on the second slider when locking the adjusting bolt, affecting the positioning accuracy of the second positioning rod, and thus ensuring the machining accuracy of the gear shaper.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting the positioning bolt, the fixing effect on the tool can be improved, preventing the tool from loosening during machining, ensuring the stability of the gear shaper during operation. After removing the positioning bolt, the installed tool can be quickly adjusted in the circumferential direction angle, effectively improving the tool replacement speed, ensuring the effective utilization rate of the gear shaper, and improving production efficiency.

[0023] 2. By pushing the first positioning rod and the second positioning rod to move obliquely upward through the positioning bolt, the first positioning rod and the second positioning rod are moved away from directly above the cutting surface of the machining tool. At this time, it will not interfere with the normal operation of the tool, and the moving distance is small, reducing the slotting length of the first chute and the second chute, thus ensuring the strength of the mounting seat. And by disassembling and assembling the positioning bolt, the tool can be positioned and machined, so the convenience in the use process can be improved.

[0024] 3. The setting of the positioning groove can, when the first slider and the second slider move to below the first chute or the second chute, cooperate with the positioning plate through the positioning groove to position the first positioning rod and the second positioning rod, thereby avoiding the problem that the positions of the first positioning rod and the second positioning rod deviate due to the sliding clearance of the slider, resulting in inconsistent circumferential direction angles of the new and old tools and causing machining errors. The positioning groove is conical, and after the positioning plate or the positioning groove is worn, it can still limit the swing of the first positioning rod and the second positioning rod due to the rotation clearance of the first slider and the second slider, so that after wear, the angle can be readjusted and still can be used continuously, effectively improving the service life of the clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structural schematic diagram of the present invention with the positioning bolt removed; Figure 2 is Figure 1 the sectional view taken along the line A-A in Figure 3 is Figure 1 the top view sectional view; Figure 4 is the top view sectional view of the present invention when the circumferential direction angle of the tool is offset; Figure 5 is Figure 3Cross-sectional view taken along line B-B in [the figure]; Figure 6 is Figure 5 Enlarged partial view at position C in [the figure]; Figure 7 Schematic diagram of the overall structure for installing the positioning bolt of the present invention; Figure 8 Exploded view of the present invention.

[0026] In the figure: 1. Mounting base; 2. Fastening bolt; 3. Positioning bolt; 4. First threaded hole; 5. Second threaded hole; 6. Positioning member; 61. First positioning rod; 62. Second positioning rod; 63. Pressure sensor; 64. First sliding groove; 65. Second sliding groove; 66. First slider; 67. Second slider; 68. Extrusion spring; 69. Adjusting bolt; 7. Ring groove; 8. Rubber pad; 9. Positioning groove; 91. Positioning surface; 10. Positioning plate; 11. Extrusion block; 12. Sealing airbag; 13. Protection airbag; 14. Channel; 15. Cutting tool; 16. Workbench. Detailed implementation manners

[0027] As Figures 1 to 8 , the present invention provides a clamping device for a compound plunge cutting tool for metal cutting, and the technical solution is as follows: A clamping device for a compound plunge cutting tool for metal cutting, please refer to Figures 1 to 5, including a mounting base 1, which is flange - connected to the main shaft of the gear shaper. There are a first threaded hole 4 and a second threaded hole 5 on the mounting base 1. The first threaded hole 4 and the second threaded hole 5 are coaxially arranged. A fastening bolt 2 is internally threaded in the first threaded hole 4. The fastening bolt 2 is right - hand tightened, indicated by S2 in the figure. A positioning bolt 3 is internally threaded in the second threaded hole 5. The positioning bolt 3 is sleeved inside the fastening bolt 2. There is a positioning member 6 on the mounting base 1. The positioning member 6 includes a first chute 64 and a second chute 65 opened on the mounting base 1. A first slider 66 and a second slider 67 are respectively slidably mounted inside the first chute 64 and the second chute 65. Both the first slider 66 and the second slider 67 are elastically connected to the mounting base 1 through a compression spring 68. The first slider 66 and the second slider 67 extend into the second threaded hole 5. Two first positioning rods 61 are symmetrically and slidably mounted on the second slider 67. A compression spring 68 is connected between the first positioning rod 61 and the first slider 66. A pressure sensor 63 is provided between the compression spring 68 and the mounting base 1. The second positioning rod 62 is an L - shaped rod. The end of the second positioning rod 62 is connected to the second slider 67 through an adjusting bolt 69. The adjusting bolt 69 is left - hand tightened; a ring groove 7 is opened on the fastening bolt 2; a conical positioning groove 9 is provided along the radial direction of the mounting base 1 below the first chute 64 and the second chute 65. A positioning plate 10 that cooperates with the positioning groove 9 is provided on the second slider 67; the first chute 64 and the second chute 65 are inclined obliquely upward along the axis direction of the rotating shaft. The first chute 64 and the second chute 65 are respectively in cooperation with the first slider 66 and the second slider 67 on one side of the outer edge of the rotating shaft. Sealing air bags 12 are provided on the first slider 66 and the second slider 67. A protective air bag 13 is provided at the sliding part of the first slider 66 where the first positioning rod 61 is located. A channel 14 is provided inside the first slider 66. The sealing air bag 12 is communicated with the protective air bag 13 through the channel 14; the width of the second chute 65 is 3 mm larger than the width of the second slider 67. The side of the positioning groove 9 facing the rotating direction of the fastening bolt 2 is a positioning surface 91. An extrusion block 11 is elastically connected to the inner wall of the second chute 65. The elastic force direction of the extrusion block 11 on the second slider 67 faces the positioning surface 91; a rubber pad 8 is provided inside the ring groove 7. The rubber pad 8 protrudes 4 mm from the ring groove 7. The head of the adjusting bolt 69 is located above, and the rotating direction of the adjusting bolt 69 is opposite to the rotating direction of the fastening bolt 2.

[0028] The specific implementation method is as follows: Please refer to Figure 1 and Figures 3 to 8, during the initial processing, after the tool 15 is adjusted, record the rotation angle of the spindle, which is set as θ1. When the first workpiece is processed, rotate the first positioning rod 61 to one side of the workbench 16, remove the positioning bolt 3. At this time, the first slider 66 and the second slider 67 can move obliquely downward under the action of the spring force. Then rotate the adjusting nut to remove the second positioning rod 62. After the removal is completed, move the spindle along the Z-axis direction, and then move the workbench 16 along the X-axis and Y-axis directions to make the workbench 16 squeeze the two first positioning rods 61. At this time, the first positioning rod 61 compresses the compression spring 68, and at this time the pressure sensor 63 generates a value. Observe the digital display of the pressure sensor 63. If the displayed numbers are the same, there is no need to rotate the spindle. At this time, the rotation angle of the spindle can be recorded again. If the displayed numbers are different, rotate the spindle to the side of the pressure sensor 63 with the larger displayed value. The rotation direction is as shown in Figure 4 S1 in Figure 4 indicates that at this time, the digital displays of the two pressure sensors 63 increase simultaneously, and the sensor with the larger displayed value has a smaller increase amplitude. When the digital displays of the two pressure sensors 63 are the same, stop the rotation of the spindle and record the rotation angle of the rotating shaft, which is set as θ2. At this time, install the second positioning rod 62 through the adjusting bolt 69. During installation, the second positioning rod 62 swings along the S1 direction and fits with the tool face of the tool 15. After positioning, rotate the spindle, and the rotation angle is the difference between θ1 and θ2. At this time, the circumferential intersection of the gear shaping can be restored to the accurate state. At this time, install the positioning screw, and squeeze the first slider 66 and the second slider 67 to move obliquely upward through the positioning screw to prevent the first positioning rod 61 and the second positioning rod 62 from interfering with the gear shaping operation of the tool 15; when the tool 15 is damaged, rotate the positioning bolt 3 and the fastening bolt 2 along the S1 direction to release the clamping of the tool 15. At this time, the tool 15 can be disassembled. After the positioning bolt 3 is disassembled, the first slider 66 and the second slider 67 slide downward. At this time, sleeved the newly installed tool 15 on the mounting seat 1, and make the second positioning rod 62 located inside the tooth groove of the tool 15. At this time, manually rotate the tool 15 to make the tool 15 fit with the second positioning rod 62. At this time, rotate the fastening bolt 2 along the S2 direction to lock the tool 15. During the locking process, the rubber pad 8 drives the tool 15 to squeeze the second positioning rod 62, so that the problem that the second positioning rod 62 cannot fit with the tool 15 is not likely to occur. After locking the tool 15, rotate the first positioning rod 61 to one side of the workbench 16, move the spindle along the Z-axis direction, and then move the workbench 16 along the X-axis and Y-axis directions to make the workbench 16 squeeze the two first positioning rods 61. Continue the above adjustment method until the displayed values of the two pressure sensors 63 are equal. At this time, rotate the spindle, and the rotation angle is the difference between θ1 and θ2. The newly replaced tool 15 can have the same circumferential direction angle as the old tool 15, thus ensuring the machining accuracy of the gear shaper.

[0029] Please refer to Figure 1 , Figure 5During the downward movement of the first slider 66 and the second slider 67, the positioning plate 10 and the positioning groove 9 are completely fitted, thereby positioning the first positioning rod 61 and the second positioning rod 62, and further avoiding the problem that the positions of the first positioning rod 61 and the second positioning rod 62 are offset due to the sliding clearance of the slider, resulting in the circumferential angular offset after replacing the cutting tool 15 and thus generating machining errors. The setting of the positioning groove 9 can still limit the swing of the first positioning rod 61 and the second positioning rod 62 due to the rotational clearance of the first slider 66 and the second slider 67 after the positioning plate 10 or the positioning groove 9 is worn, so that the angle can be readjusted after wear and still can be used continuously, thereby effectively improving the service life of the clamping device.

[0030] Please refer to Figure 1 、 Figure 2 、 Figure 5 、 Figure 7 、 Figure 8 When the first slider 66 and the second slider 67 move obliquely upward, the first slider 66 and the second slider 67 are respectively engaged with the first chute 64 and the second chute 65, and are attached to the side walls of the first chute 64 and the second chute 65 through the sealing airbag 12, thereby preventing the internal impurities and iron filings in the cutting fluid from entering the positioning groove 9 and affecting the positioning effect of the first positioning rod 61 and the second positioning rod 62. When the sealing airbag 12 is squeezed, the internal gas enters the internal of the protection airbag 13 along the air passage, thereby sealing the sliding clearance of the first positioning rod 61 and preventing the liquid from contacting the pressure sensor 63 and affecting the detection accuracy of the pressure sensor 63. The setting of the sealing airbag 12 can reduce the vibration generated by the first slider 66 and the second slider 67 due to the movement of the main shaft during the machining process, thereby effectively improving the service life of the components. The expansion of the protection airbag 13 can also reduce the vibration of the first positioning rod 61, thereby ensuring the positioning accuracy of the first positioning rod 61.

[0031] Please refer to Figure 1 、 Figure 3 、 Figure 5 、 Figure 7 、 Figure 8 The rotation direction of the adjusting bolt 69 is opposite to the rotation direction of the fastening bolt 2. When initially installing the second positioning rod 62, rotating the adjusting bolt 69 can make the adjusting bolt 69 swing towards the cutting tool 15 side, thereby causing the second positioning rod 62 to rotate during installation, making the adjustment more convenient. The head of the adjusting bolt 69 is located above. When rotating the adjusting bolt 69, the wrench always presses the second positioning rod 62 downward, thereby avoiding the positioning plate 10 being disengaged from the positioning groove 9 due to the upward thrust on the second slider 67 when tightening the adjusting bolt 69 and affecting the positioning accuracy of the second positioning rod 62, thereby ensuring the machining accuracy of the gear shaper.

[0032] The above has described in detail a specific embodiment of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiment. For those skilled in the art, without departing from the principles and ideas of the present invention, various changes, modifications, substitutions, and variations made to these embodiments should still fall within the protection scope of the present invention.

Claims

1. A clamping device for a composite slotting tool used for metal cutting, characterized in that, It includes a mounting base (1), a fastening bolt (2), and a positioning bolt (3). Threaded hole one (4) and threaded hole two (5) are provided on the mounting base (1). Threaded hole one (4) and threaded hole two (5) are coaxially arranged. The fastening bolt (2) is threadedly connected to threaded hole one (4), and the positioning bolt (3) is threadedly connected to threaded hole two (5). The positioning bolt (3) is sleeved inside the fastening bolt (2). A positioning member (6) is provided on the mounting base (1). A first positioning rod (61) and a second positioning rod (62) are provided on the positioning member (6), and a pressure sensor (63) is provided between the first positioning rod (61) and the positioning member (6). When the positioning member (6) is squeezed by the positioning bolt (3), it pushes the first positioning rod (61) and the second positioning rod (62) to move in the vertical direction.

2. The clamping device for the compound broaching tool for metal cutting according to claim 1, characterized in that, The positioning member (6) includes a first chute (64), a second chute (65), a first slider (66), and a second slider (67). A first chute (64) and a second chute (65) are formed on the mounting base (1). The first slider (66) and the second slider (67) are respectively slidably mounted inside the first chute (64) and the second chute (65). Both the first slider (66) and the second slider (67) are elastically connected to the mounting base (1). The first slider (66) and the second slider (67) extend into the interior of threaded hole two (5). The number of the first positioning rods (61) is 2, and they are symmetrically and slidably mounted on the first slider (66). An extrusion spring (68) is connected between the first positioning rod (61) and the first slider (66). The pressure sensor (63) is arranged between the extrusion spring (68) and the mounting base (1). The second positioning rod (62) is an L-shaped rod, and the end of the second positioning rod (62) is connected to the second slider (67) through an adjusting bolt (69).

3. The clamping device of a compound shaping tool for metal cutting according to claim 2, characterized in that, A ring groove (7) is formed on the fastening bolt (2), and a rubber pad (8) is arranged inside the ring groove (7). The rubber pad (8) protrudes 2 - 4 mm out of the ring groove (7).

4. The clamping device of a compound shaping tool for metal cutting according to claim 3, characterized in that, A conical positioning groove (9) is provided below the first chute (64) and the second chute (65) along the radial direction of the mounting base (1). A positioning plate (10) matching the positioning groove (9) is provided on the second slider (67).

5. The clamping device of a compound shaping tool for metal cutting according to claim 4, characterized in that, The first chute (64) and the second chute (65) are inclined obliquely upward along the axis direction of the rotating shaft. The first chute (64) and the second chute (65) are respectively matched with the first slider (66) and the second slider (67) on one side of the outer edge of the rotating shaft.

6. The clamping device of a compound shaping tool for metal cutting according to claim 5, characterized in that, The width of the second chute (65) is 2 - 3 mm larger than the width of the second slider (67). The side of the positioning groove (9) facing the rotating direction of the fastening bolt (2) is a positioning surface (91). An extrusion block (11) is elastically connected to the inner wall of the second chute (65), and the elastic force direction of the extrusion block (11) on the second slider (67) faces the positioning surface (91).

7. The clamping device of a compound slotting tool for metal cutting according to claim 4, characterized in that, A sealing airbag (12) is provided on the first slider (66) and the second slider (67). A protection airbag (13) is provided at the sliding part of the first slider (66) on the first positioning rod (61). A channel (14) is provided inside the first slider (66). The sealing airbag (12) is communicated with the protection airbag (13) through the channel (14).

8. The clamping device of a compound slotting tool for metal cutting according to claim 3, characterized in that, The head of the adjusting bolt (69) is located above, and the rotation direction of the adjusting bolt (69) is opposite to the rotation direction of the fastening bolt (2).

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