Machine tool clamp for machining threaded hole in threaded flange
Technical Field
The invention belongs to the technical field of machine tool fixtures, and relates to a machine tool fixture for machining a threaded hole in a threaded flange.
Background
The conventional threaded flange comprises a flange disc body, wherein a threaded hole and a through hole are formed in the disc body, the edge of the disc body, namely the joint of the top surface and the bottom surface of the disc body and the side wall, is not processed by a common traditional threaded flange, and the manufactured threaded flange is easy to collide and collide with the edge of the disc body to cause a gap when being put into use.
However, the threaded flange is difficult to clamp in the process of machining the threaded hole, and therefore, a machine tool clamp capable of effectively clamping the threaded flange needs to be developed by those skilled in the art.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a machine tool clamp for machining a threaded flange internal threaded hole.
The purpose of the invention can be realized by the following technical scheme:
a machine tool fixture for machining threaded holes in threaded flanges comprises a rectangular workbench and is characterized in that a clamping groove is formed in the workbench, a working panel is horizontally arranged in the clamping groove, a first positioning hole, a second positioning hole, a third positioning hole and a fourth positioning hole are formed in the working panel at equal intervals in the circumferential direction, a positioning mechanism capable of positioning the threaded flanges on the working panel is further arranged in the clamping groove, and the positioning mechanism comprises a first lead screw, a second lead screw, a third lead screw, a fourth lead screw, a first expansion block, a second expansion block, a third expansion block and a fourth expansion block; the lower surface of workstation be provided with the alignment jig, the alignment jig includes riser one, riser two and bottom plate, riser one and riser two are all fixed at the upper surface of bottom plate, the through-hole has been seted up on the bottom plate, be fixed with the cylinder on the through-hole inner wall, the piston rod of cylinder is vertical upwards, and the piston rod end fixing is at the lower surface of workstation.
Placing the threaded flange on a working panel, enabling the hole opening on the flange to correspond to the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole, and limiting the threaded flange on the working panel through a positioning mechanism; meanwhile, the air cylinder can drive the workbench to move up and down, so that the distance between the threaded flange and the cutter can be adjusted conveniently, and thread machining of the threaded flange is facilitated.
In the machine tool fixture for machining the threaded flange internal threaded hole, a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove are respectively formed on four edges of the workbench, a first clamping shaft, a second clamping shaft, a third clamping shaft and a fourth clamping shaft are respectively rotatably arranged in the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove, a first locking hook, a second locking hook, a third locking hook and a fourth locking hook are respectively fixed on the first clamping shaft, the second clamping shaft, the third clamping shaft and the fourth clamping shaft, a first driven bevel gear, a second driven bevel gear, a third driven bevel gear and a fourth driven bevel gear are respectively fixed on the first clamping shaft, the second clamping shaft, the third clamping shaft and the fourth clamping shaft, a first motor, a second motor, a third motor and a fourth motor are horizontally fixed on the workbench, and a first driving bevel gear, a second driving bevel gear, a third driving bevel gear and a fourth driving bevel gear are respectively fixed on the end portions of output shafts of the first motor, the second motor, and the first driving bevel gear, the second driving bevel gear, the third driving bevel gear and the fourth driving bevel gear are respectively meshed with the first driven bevel gear, the second driven bevel gear, the third driven bevel gear and the fourth driven bevel gear.
The first lock hook, the second lock hook, the third lock hook and the fourth lock hook are respectively fixed on the first clamp shaft, the second clamp shaft, the third clamp shaft and the fourth clamp shaft, and under the action of the first motor, the second motor, the third motor and the fourth motor, the first drive bevel gear, the second drive bevel gear, the third drive bevel gear and the fourth drive bevel gear are respectively meshed with the first driven bevel gear, the second driven bevel gear, the third driven bevel gear and the fourth driven bevel gear, so that the first lock hook, the second lock hook, the third lock hook and the fourth lock hook can press the end face of the neck part connected with the threaded flange, and the threaded flange is pressed on a working face.
In the above machine tool fixture for machining the threaded flange internal threaded hole, the first expansion block, the second expansion block, the third expansion block and the fourth expansion block are all provided with internal threaded holes, the first expansion block, the second expansion block, the third expansion block and the fourth expansion block are respectively in threaded connection with the first screw rod, the second screw rod, the third screw rod and the fourth screw rod, the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove are respectively vertically formed in the inner walls of the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole on the working panel, the first sliding block, the second sliding groove, the third sliding groove and the fourth sliding groove are internally provided with the first sliding block, the second sliding block, the third sliding block and the fourth sliding block in a sliding manner, and the first sliding block, the second sliding block, the third sliding block and the fourth sliding block are respectively fixed on. The expansion block I, the expansion block II, the expansion block III and the expansion block four are respectively in threaded connection with the screw rod I, the screw rod II, the screw rod III and the screw rod IV, and the slide block I, the slide block II, the slide block III and the slide block IV can only respectively move up and down along the slide groove I, the slide groove II, the slide groove III and the slide groove IV, so that the expansion block I, the expansion block II, the screw rod III and the expansion block four can be driven to respectively move up and down along the screw rod I, the screw rod II, the expansion block III and the expansion block four when the screw rod I, the screw rod II, the screw rod III and the expansion block four rotate.
In the above machine tool fixture for processing the threaded flange internal threaded hole, the working panel is rotatably provided with a first belt wheel, a second belt wheel, a third belt wheel and a fourth belt wheel, one end of the first lead screw, the second lead screw, the third lead screw and the fourth lead screw is respectively fixed on the first belt wheel, the second belt wheel, the third belt wheel and the fourth belt wheel, the first lead screw, the second lead screw, the third lead screw and the fourth lead screw are respectively positioned under the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole, the other end of the first lead screw, the second lead screw, the third lead screw and the fourth lead screw is respectively fixed with a first truncated cone-shaped limiting block, a second truncated cone-shaped limiting block, a third truncated cone-shaped limiting block and a fourth truncated cone-shaped limiting block, the lower end surfaces of the first truncated cone-shaped limiting block, the second truncated cone-shaped limiting block, the third circular truncated cone-shaped limiting block and the fourth, The upper end faces of the second circular truncated cone-shaped limiting block, the third circular truncated cone-shaped limiting block and the fourth circular truncated cone-shaped limiting block penetrate out of the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole, the diameters of the upper end faces of the first circular truncated cone-shaped limiting block, the second circular truncated cone-shaped limiting block, the third circular truncated cone-shaped limiting block and the fourth circular truncated cone-shaped limiting block are larger than the diameter of the lower end face, and a plurality of notches are vertically formed in the equal circumferential equal interval mode in the upper ends of the first expansion block, the second expansion block, the third expansion block.
The first screw rod, the second screw rod, the third screw rod and the fourth screw rod synchronously rotate forwards to drive the first expansion block, the second expansion block, the third expansion block and the fourth expansion block to respectively move upwards along the first screw rod, the second screw rod, the third screw rod and the fourth screw rod, when the upper ends of the first expansion block, the second expansion block, the third expansion block and the fourth expansion block respectively contact with the first truncated cone-shaped limiting block, the second truncated cone-shaped limiting block, the third truncated cone-shaped limiting block and the fourth truncated cone-shaped limiting block, gaps at the upper ends of the first expansion block, the second expansion block, the third expansion block and the fourth expansion block deform, and a threaded flange is pressed on a working surface, so that an orifice on the threaded flange is clamped on the first expansion block, the second expansion block, the third expansion block and the fourth expansion block; in a similar way, the first screw, the second screw, the third screw and the fourth screw are synchronously reversed, so that the first expansion block, the second expansion block, the third expansion block and the fourth expansion block can be driven to respectively move downwards along the first screw, the second screw, the third screw and the fourth screw, and the first expansion block, the second expansion block, the third expansion block and the fourth expansion block are separated from the hole opening on the neck flange.
In the above-mentioned machine tool fixture for processing of threaded flange internal thread hole, the workstation press from both sides the interior diapire in tight groove and on vertically be equipped with transmission shaft one, transmission shaft two, transmission shaft three and transmission shaft four through the bearing, the upper surface at transmission shaft one, transmission shaft two, transmission shaft three and transmission shaft four is fixed respectively to band pulley one, band pulley two, band pulley three and band pulley four, the workstation press from both sides tight inslot and still be equipped with and drive transmission shaft one, transmission shaft two, transmission shaft three and transmission shaft four pivoted drive structures.
In the above-mentioned machine tool fixture for processing of threaded flange internal thread hole, drive structure include motor five, band pulley five and belt, motor five fix the lower surface at the workstation, the output shaft of motor five is worn to establish at the workstation and is pressed from both sides tight inslot, band pulley five is fixed at the output of motor five, and the belt sleeve is established on band pulley one, band pulley two, band pulley three, band pulley four and band pulley five.
The motor five can drive the belt wheel five to rotate, and the belt wheel I, the belt wheel II, the belt wheel III and the belt wheel IV synchronously rotate along with the belt wheel five through a belt, so that the screw rod I, the screw rod II, the screw rod III and the screw rod IV can synchronously rotate forwards and reversely.
In the above-mentioned lathe fixture for processing of screw flange internal thread hole, a workstation lateral wall on vertically be fixed with slide rail one and slide rail two, vertically on another relative lateral wall of workstation be fixed with slide rail three and slide rail four, and slide rail one, slide rail two, slide rail three and slide rail four go up to slide respectively and be provided with elevator one, elevator two, elevator three and elevator four, and elevator one and elevator two fix on a side of riser one towards riser two, elevator three and elevator four fix on a side of riser two towards riser one. The first lifting block, the second lifting block, the third lifting block and the fourth lifting block are matched with the first sliding rail, the second sliding rail, the third sliding rail and the fourth sliding rail respectively, so that the stability of the workbench moving up and down relative to the adjusting frame can be guaranteed.
Compared with the prior art, this a jig for processing of screw flange internal thread hole has following advantage:
1. the first lock hook, the second lock hook, the third lock hook and the fourth lock hook are respectively fixed on the first clamp shaft, the second clamp shaft, the third clamp shaft and the fourth clamp shaft, so that the first lock hook, the second lock hook, the third lock hook and the fourth lock hook can press the end face of the neck part connected with the threaded flange under the action of the first motor, the second motor, the third motor and the fourth motor, and the threaded flange is pressed on a working face.
2. The synchronous forward rotation of the first screw rod, the second screw rod, the third screw rod and the fourth screw rod drives the first expansion block, the second expansion block, the third expansion block and the fourth expansion block to respectively move upwards along the first screw rod, the second screw rod, the third screw rod and the fourth screw rod, when the upper ends of the first expansion block, the second expansion block, the third expansion block and the fourth expansion block respectively contact with the first truncated cone-shaped limiting block, the second truncated cone-shaped limiting block, the third truncated cone-shaped limiting block and the fourth truncated cone-shaped limiting block, gaps at the upper ends of the first expansion block, the second expansion block, the third expansion block and the fourth expansion block deform, and a threaded flange is pressed on a working face, so that an orifice on the threaded flange is clamped on the first expansion block, the second expansion block, the third expansion block and the fourth expansion block.
3. The air cylinder in the invention can drive the workbench to move up and down, so that the distance between the threaded flange and the cutter can be conveniently adjusted, and the lifting block I, the lifting block II, the lifting block III and the lifting block IV are respectively matched with the sliding rail I, the sliding rail II, the sliding rail III and the sliding rail IV, so that the stability of the workbench moving up and down relative to the adjusting frame can be ensured, and the threaded flange can be conveniently subjected to thread processing.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional structural view of the present invention;
FIG. 3 is a schematic perspective view of a positioning mechanism of the present invention;
fig. 4 is a schematic cross-sectional view of an expansion block of the present invention captured in a threaded flange port.
In the figure, 1, a workbench; 2. a first mounting groove; 3. a working panel; 4. clamping a first shaft; 5. a first lock hook; 6. a second lock hook; 7. a lock hook III; 8. a lock hook IV; 9. a first motor; 10. a second motor; 11. a third motor; 12. a fourth motor; 13. a driven bevel gear I; 14. a first driving bevel gear; 15. a cylinder; 16. a first belt wheel; 17. a second belt wheel; 18. a third belt wheel; 19. a belt wheel IV; 20. a fifth belt wheel; 21. a belt; 22. a fifth motor; 23. a first lead screw; 24. a second screw rod; 25. a third screw rod; 26. a fourth screw rod; 27. a first expansion block; 28. a second expansion block; 29. a third expansion block; 30. expanding block four; 31. a first truncated cone-shaped limiting block; 32. a second truncated cone-shaped limiting block; 33. a first sliding block; 34. a first sliding chute; 35. a first vertical plate; 36. a second vertical plate; 37. a base plate; 38. a first slide rail; 39. a second slide rail; 40. a first sliding block; 41. and a second sliding block.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in figures 1 and 2, a machine tool fixture for processing threaded hole in a threaded flange, including rectangle workstation 1, the tight groove of clamp has been seted up on workstation 1, the tight inslot level of clamp is equipped with work panel 3, the lower surface of workstation 1 is provided with the alignment jig, the alignment jig includes riser one 35, riser two 36 and bottom plate 37, riser one 35 and riser two 36 are all fixed at the upper surface of bottom plate 37, the through-hole has been seted up on the bottom plate 37, be fixed with cylinder 15 on the through-hole inner wall, the piston rod of cylinder 15 is vertical upwards, and the piston rod end fixing is at the lower surface of workstation 1, cylinder 15 can drive workstation 1 upper and lower motion, thereby be convenient for adjust the interval between threaded flange and the cutter, be favorable to carrying out thread machining to the threaded flange.
A first sliding rail 38 and a second sliding rail 39 are vertically fixed on one side wall of the workbench 1, a third sliding rail and a fourth sliding rail are vertically fixed on the other opposite side wall of the workbench 1, a first lifting block 40, a second lifting block 41, a third lifting block and a fourth lifting block are respectively arranged on the first sliding rail 38, the second sliding rail 39, the third sliding rail and the fourth sliding rail in a sliding mode, the first lifting block 40 and the second lifting block 41 are fixed on one side face, facing the first vertical plate 35 to the second vertical plate 36, of the first vertical plate 35, and the third lifting block and the fourth lifting block are fixed on one side face, facing the first vertical plate 35, of. The first lifting block 40, the second lifting block 41, the third lifting block and the fourth lifting block are matched with the first sliding rail 38, the second sliding rail 39, the third sliding rail and the fourth sliding rail respectively, so that the stability of the upper and lower movement of the workbench 1 relative to the adjusting frame can be ensured.
Four edges of the workbench 1 are respectively provided with a first mounting groove 2, a second mounting groove, a third mounting groove and a fourth mounting groove, a first clamping shaft 4, a second clamping shaft, a third clamping shaft and a fourth clamping shaft are respectively and rotatably arranged in the first mounting groove 2, the second mounting groove, the third mounting groove and the fourth mounting groove, a first locking hook 5, a second locking hook 6, a third locking hook 7 and a fourth locking hook 8 are respectively fixed on the first clamping shaft 4, the second clamping shaft, the third clamping shaft and the fourth clamping shaft, a first driven bevel gear 13, a second driven bevel gear, a third driven bevel gear and a fourth driven bevel gear are respectively fixed on the first clamping shaft 4, the second clamping shaft, the third clamping shaft and the fourth clamping shaft, a first driven bevel gear 9, a second motor 10, a third motor 11 and a fourth motor 12 are horizontally fixed on the workbench 1, a first driving bevel gear 14, a second driving bevel gear, a third driving bevel gear and a fourth driving bevel gear are respectively fixed on the output shaft ends of the first motor 9, the second motor 10, and the first drive bevel gear 14, the second drive bevel gear, the third drive bevel gear and the fourth drive bevel gear are respectively engaged with the first driven bevel gear 13, the second driven bevel gear, the third driven bevel gear and the fourth driven bevel gear.
The first lock hook 5, the second lock hook 6, the third lock hook 7 and the fourth lock hook 8 are respectively fixed on the first lock shaft 4, the second lock shaft, the third lock shaft and the fourth lock shaft, and under the action of the first motor 9, the second motor 10, the third motor 11 and the fourth motor 12, the first drive bevel gear 14, the second drive bevel gear, the third drive bevel gear and the fourth drive bevel gear are respectively meshed with the first driven bevel gear 13, the second driven bevel gear, the third driven bevel gear and the fourth driven bevel gear, so that the first lock hook 5, the second lock hook 6, the third lock hook 7 and the fourth lock hook 8 can press the end face of the neck part connected with the threaded flange, and the threaded flange is pressed on a working face.
As shown in fig. 3 and 4, a first positioning hole, a second positioning hole, a third positioning hole and a fourth positioning hole are circumferentially and equidistantly formed in the working panel 3, a positioning mechanism capable of positioning the threaded flange on the working panel 3 is further arranged in the clamping groove, and the positioning mechanism comprises a first lead screw 23, a second lead screw 24, a third lead screw 25, a fourth lead screw 26, a first expansion block 27, a second expansion block 28, a third expansion block 29 and a fourth expansion block 30. And placing the threaded flange on the working panel 3, enabling the hole opening on the flange to correspond to the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole, and limiting the threaded flange on the working panel 3 through a positioning mechanism. The first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 are all provided with internal threaded holes, the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 are respectively in threaded connection with the first screw rod 23, the second screw rod 24, the third screw rod 25 and the fourth screw rod 26, the first sliding groove 34, the second sliding groove, the third sliding groove and the fourth sliding groove are respectively and vertically formed in the inner walls of the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole in the working panel 3, the first sliding groove 34, the second sliding groove, the third sliding groove and the fourth sliding groove are provided with a first sliding block 33, a second sliding block, a third sliding block and a fourth sliding block in a sliding mode, and the first sliding block 33, the second sliding block, the third sliding block and the fourth sliding block are respectively fixed on the. The first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 are respectively in threaded connection with the first lead screw 23, the second lead screw 24, the third lead screw 25 and the fourth lead screw 26, and the first sliding block 33, the second sliding block, the third sliding block and the fourth sliding block can respectively move up and down along the first sliding groove 34, the second sliding groove, the third sliding groove and the fourth sliding groove, so that the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 can be driven to respectively move up and down along the first lead screw 23, the second lead screw 24, the third lead screw 25 and the fourth lead screw 26 while the first lead screw 23, the second lead screw 24, the third lead screw 25 and the fourth lead screw 26 rotate.
The working panel 3 is rotatably provided with a belt wheel I16, a belt wheel II 17, a belt wheel III 18 and a belt wheel IV 19, one end of the screw rod I23, the screw rod II 24, the screw rod III 25 and the screw rod IV 26 is respectively fixed on the belt wheel I16, the belt wheel II 17, the belt wheel III 18 and the belt wheel IV 19, the screw rod I23, the screw rod II 24, the screw rod III 25 and the screw rod IV 26 are respectively positioned under the positioning hole I, the positioning hole II, the positioning hole III and the positioning hole IV, the other end of the screw rod I23, the screw rod II 24, the screw rod III 25 and the screw rod IV 26 is respectively fixed with a circular truncated cone-shaped limiting block I31, a circular truncated cone-shaped limiting block II 32, a circular truncated cone-shaped limiting block III and a circular truncated cone-shaped limiting block IV, the lower end faces of the circular truncated cone-shaped limiting block I31, the circular truncated cone-shaped limiting block II 32, the circular truncated cone-shaped limiting block III and the, The upper end faces of the second circular truncated cone-shaped limiting block 32, the third circular truncated cone-shaped limiting block and the fourth circular truncated cone-shaped limiting block penetrate out of the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole, the diameters of the upper end faces of the first circular truncated cone-shaped limiting block 31, the second circular truncated cone-shaped limiting block 32, the third circular truncated cone-shaped limiting block and the fourth circular truncated cone-shaped limiting block are larger than the diameter of the lower end face, and a plurality of notches are vertically formed in the equal circumferential interval mode at the upper ends of the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth.
The screw rod I23, the screw rod II 24, the screw rod III 25 and the screw rod IV 26 synchronously rotate forwards to drive the expansion block I27, the expansion block II 28, the expansion block III 29 and the expansion block IV 30 to move upwards along the screw rod I23, the screw rod II 24, the screw rod III 25 and the screw rod IV 26 respectively, after the upper ends of the expansion block I27, the expansion block II 28, the expansion block III 29 and the expansion block IV 30 are contacted with the circular truncated cone-shaped limiting block I31, the circular truncated cone-shaped limiting block II 32, the circular truncated cone-shaped limiting block III and the circular truncated cone-shaped limiting block IV respectively, the gaps at the upper ends of the expansion block I27, the expansion block II 28, the expansion block III 29 and the expansion block IV 30 deform, and the threaded flange is pressed on a working face, so that an orifice on the threaded flange is clamped on the expansion block I27, the expansion block II 28, the expansion block III 29; in a similar way, the first lead screw 23, the second lead screw 24, the third lead screw 25 and the fourth lead screw 26 are synchronously reversed, so that the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 can be driven to continuously move downwards along the first lead screw 23, the second lead screw 24, the third lead screw 25 and the fourth lead screw 26 respectively, and the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 are separated from the hole openings on the neck flange.
A first transmission shaft, a second transmission shaft, a third transmission shaft and a fourth transmission shaft are vertically arranged on the inner bottom wall of the clamping groove of the workbench 1 through bearings, a first belt wheel 16, a second belt wheel 17, a third belt wheel 18 and a fourth belt wheel 19 are respectively fixed on the upper surfaces of the first transmission shaft, the second transmission shaft, the third transmission shaft and the fourth transmission shaft, and a driving structure capable of driving the first transmission shaft, the second transmission shaft, the third transmission shaft and the fourth transmission shaft to rotate is further arranged in the clamping groove of the workbench 1. The driving structure comprises a fifth motor 22, a fifth belt wheel 20 and a belt 21, the fifth motor 22 is fixed on the lower surface of the workbench 1, an output shaft of the fifth motor 22 penetrates through a clamping groove of the workbench 1, the fifth belt wheel 20 is fixed at the output end of the fifth motor 22, and the belt 21 is sleeved on the first belt wheel 16, the second belt wheel 17, the third belt wheel 18, the fourth belt wheel 19 and the fifth belt wheel 20. The motor five 22 can drive the belt wheel five 20 to rotate, and the belt wheel one 16, the belt wheel two 17, the belt wheel three 18 and the belt wheel four 19 synchronously rotate along with the belt wheel five 20 through the belt 21, so that the screw rod one 23, the screw rod two 24, the screw rod three 25 and the screw rod four 26 can synchronously rotate forwards and reversely.
Firstly, a first lock hook 5, a second lock hook 6, a third lock hook 7 and a fourth lock hook 8 are respectively fixed on a first clamp shaft 4, a second clamp shaft, a third clamp shaft and a fourth clamp shaft, and under the action of a first motor 9, a second motor 10, a third motor 11 and a fourth motor 12, the first lock hook 5, the second lock hook 6, the third lock hook 7 and the fourth lock hook 8 can press the end face of the neck part connected with the threaded flange, so that the threaded flange is pressed on a working face; then, the first screw 23, the second screw 24, the third screw 25 and the fourth screw 26 synchronously rotate forwards to drive the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 to move upwards along the first screw 23, the second screw 24, the third screw 25 and the fourth screw 26 respectively, when the upper ends of the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 are in contact with the first truncated cone-shaped limiting block 31, the second truncated cone-shaped limiting block 32, the third truncated cone-shaped limiting block and the fourth truncated cone-shaped limiting block respectively, gaps at the upper ends of the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30 are deformed, and a threaded flange is pressed on a working face, so that an orifice on the threaded flange is clamped on the first expansion block 27, the second expansion block 28, the third expansion block 29 and the fourth expansion block 30; finally, the cylinder 15 can drive the workbench 1 to move up and down, so that the distance between the threaded flange and the cutter can be conveniently adjusted, and the first lifting block 40, the second lifting block 41, the third lifting block and the fourth lifting block are respectively matched with the first sliding rail 38, the second sliding rail 39, the third sliding rail and the fourth sliding rail, so that the stability of the up and down movement of the workbench 1 relative to the adjusting frame can be ensured, and the threaded flange can be conveniently subjected to thread machining.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although 1, a table is used more herein; 2. a first mounting groove; 3. a working panel; 4. clamping a first shaft; 5. a first lock hook; 6. a second lock hook; 7. a lock hook III; 8. a lock hook IV; 9. a first motor; 10. a second motor; 11. a third motor; 12. a fourth motor; 13. a driven bevel gear I; 14. a first driving bevel gear; 15. a cylinder; 16. a first belt wheel; 17. a second belt wheel; 18. a third belt wheel; 19. a belt wheel IV; 20. a fifth belt wheel; 21. a belt; 22. a fifth motor; 23. a first lead screw; 24. a second screw rod; 25. a third screw rod; 26. a fourth screw rod; 27. a first expansion block; 28. a second expansion block; 29. a third expansion block; 30. expanding block four; 31. a first truncated cone-shaped limiting block; 32. a second truncated cone-shaped limiting block; 33. a first sliding block; 34. a first sliding chute; 35. a first vertical plate; 36. a second vertical plate; 37. a base plate; 38. a first slide rail; 39. a second slide rail; 40. a first sliding block; 41. slider, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.