Part taper precision machining equipment and machining process thereof

Abstract

The invention discloses part taper precision machining equipment and a machining process thereof, and relates to the technical field of taper machining.The part taper precision machining equipment comprises a shell, a cutter module and a three-jaw chuck which are arranged on a machining center, and the three-jaw chuck is provided with a plurality of clamping jaws arranged in an array mode; a clamping mechanism used for clamping and fixing the tubular part is arranged on the side wall of each clamping jaw. The clamping mechanism comprises a mounting frame detachably connected to the side wall of the clamping jaw, and the side wall of the mounting frame is rotationally connected with a rotating seat. According to the part taper precision machining equipment and the machining process thereof, a tubular part with internal and external tapers can be conveniently clamped and fixed in the middle, a tool does not need to be clamped in a reciprocating mode, the clamping and fixing efficiency and effect are guaranteed, and then the taper precision machining efficiency and quality are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of taper processing, in particular to a part taper precision processing equipment and a processing technology thereof. Background Art

[0002] The machining center can perform precision machining of the taper of parts. Its high precision and high flexibility make it an ideal choice for taper machining. The machining center is a CNC machine tool that integrates multiple functions such as milling, drilling, boring, and tapping. It has the characteristics of high precision, high efficiency, and high automation. It controls the relative movement of the tool and the workpiece through the CNC system, and can realize the machining of parts of various complex shapes and sizes, including taper machining. During machining, for tubular parts, a three-jaw chuck is usually used for clamping and fixing.

[0003] However, when the existing part taper precision processing equipment and its processing technology are used, when it is necessary to process the inner and outer conical surfaces of the tubular parts, a three-jaw chuck is usually used to clamp and fix the outer wall of the tubular part, and the inner conical surface is processed. After the processing is completed, the tubular part needs to be removed first, and then an additional positioning tool is clamped and fixed on the three-jaw chuck to fix the tubular part with the inner conical surface, and then the outer conical surface is processed. When it is necessary to process the inner conical surface, the additional positioning tool needs to be removed. This reciprocating process not only affects the processing efficiency, but also affects the processing quality.

[0004] Therefore, we propose a part taper precision machining equipment and its machining process. Summary of the invention

[0005] The purpose of the present invention is to provide a part taper precision machining device and a machining process thereof to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a part taper precision machining device, comprising a housing, a tool module and a three-jaw chuck arranged on a machining center, wherein the three-jaw chuck has a plurality of claws arranged in an array, and the side wall of each of the claws is provided with a clamping mechanism for clamping and fixing a tubular part;

[0007] The clamping mechanism includes a mounting frame detachably connected to the side wall of the claw, and the side wall of the mounting frame is rotatably connected to a rotating seat, the end of the rotating seat is fixedly connected to a hollow cover, and a plurality of fixed tubes arranged in an array are fixedly inserted at the top of the hollow cover, the upper end of each of the fixed tubes is fixedly connected to a sleeve, and a push rod is inserted in the sleeve, the hollow cover is filled with hydraulic oil, and a push plate is slidably connected in the hollow cover, the bottom of the hollow cover is fixedly connected to a cylinder, and the telescopic end of the cylinder is fixed to the bottom of the push plate, the top of the hollow cover is provided with a detection mechanism for detecting the sealing of the sleeve, the side wall of each of the fixed tubes is provided with an opening and closing mechanism, and the side wall of the mounting frame is provided with a positioning mechanism for positioning the rotating seat.

[0008] Preferably, the detection mechanism includes a guide rail fixedly connected to the top of the hollow cover, an L-shaped plate is slidably connected to the guide rail, and the bottom of the L-shaped plate is connected to a movable plate through a first reset mechanism, the side wall of the movable plate is fixedly connected to a plurality of first connecting plates, and the bottom of the first connecting plate is fixedly connected to a V-shaped block, a moving rod is inserted into the side wall of each sleeve, and the end of the moving rod is fixedly connected to the first moving block, the first moving block is inserted in the V-shaped block, and a second reset mechanism is arranged between the first moving block and the sleeve, the top of the L-shaped plate is fixedly connected to a proximity switch, and the top of the movable plate is fixedly connected to a sensing block.

[0009] Preferably, the opening and closing mechanism includes a fixed cover fixedly inserted in the side wall of the fixed tube, and the fixed cover is connected to the fixed tube, a first through hole is provided at the bottom of the fixed cover, and the first through hole is connected to the hollow cover, a sealing plate is slidably connected inside the fixed cover, and a second through hole is provided at the top of the sealing plate, a first spring is fixedly connected between the sealing plate and the fixed cover, and the movement of the sealing plate is pushed by a pushing mechanism.

[0010] Preferably, the pushing mechanism comprises a moving frame, and the moving frame is connected to the end of the rotating seat through a moving module, and a plurality of L-shaped pushing blocks are fixedly connected to the side wall of the moving frame.

[0011] Preferably, the positioning mechanism includes two symmetrically arranged positioning holes opened on the side wall of the rotating seat, and the side wall of the mounting frame is connected to the second movable block through a third reset mechanism, the side wall of the second movable block is fixedly connected with a conical rod, the conical rod is inserted into the positioning hole, and the side wall of the mounting frame is provided with a limiting mechanism for limiting the second movable block.

[0012] Preferably, the limiting mechanism includes two symmetrically arranged first T-shaped guide rods fixedly connected to the side walls of the mounting frame, and the side walls of the first T-shaped guide rods are sleeved with L-shaped blocks, the bottom of the L-shaped block is fixedly connected to the limiting block, and the side walls of the limiting block are provided with a plurality of limiting grooves arranged in an array, the side walls of the L-shaped block are fixedly connected to a circular ring, and the end of the circular ring is provided with an annular groove, a slider is slidably connected in the annular groove, and the slider is fixed to the movable frame.

[0013] Preferably, the first reset mechanism includes two symmetrically arranged guide rods fixedly connected to the bottom of the L-shaped plate, and the side wall of each guide rod is sleeved with a guide tube, the lower end of the guide tube is fixed to the top of the movable plate, and the side wall of each guide tube is sleeved with a second spring.

[0014] Preferably, the second reset mechanism comprises two symmetrically arranged second T-shaped guide rods fixedly connected to the side walls of the sleeve, the first moving block is sleeved on the side walls of the second T-shaped guide rods, and the side walls of each second T-shaped guide rod are sleeved with a third spring.

[0015] Preferably, the third reset mechanism includes two symmetrically arranged third T-shaped guide rods fixedly connected to the side walls of the second moving block, and the side walls of the third T-shaped guide rods are sleeved with a second connecting plate, the second connecting plate is fixed to the side walls of the mounting frame, and the side walls of each third T-shaped guide rod are sleeved with a fourth spring.

[0016] A part taper precision machining process, using the part taper precision machining equipment described above, is characterized by comprising the following steps:

[0017] S1: When it is necessary to process the external taper of a tubular part, first move and adjust the jaws of the three-jaw chuck, then sleeve the tubular part on the side wall of the jaws and make the end of the jaws butt against the jaws, then start the cylinder to drive the push plate to move upward, so that the hydraulic oil in the hollow cover can be squeezed and enter the sleeve through the fixed pipe. Under the action of the hydraulic pressure, the push rod can be pushed to move away from the hollow cover and butt against the inner hole of the tubular part, so as to achieve the center clamping and fixing of the tubular part, which can not only adapt to the taper of the inner hole, but also ensure that the extrusion force of each push rod on the inner hole is constant, ensure the efficiency and effect of clamping and fixing, and then ensure the efficiency of taper precision machining;

[0018] S2: Then, the three-jaw chuck is rotated, and the tool module is used to process the outer taper of the tubular part;

[0019] S3: When it is necessary to process the inner taper of the tubular part, it is only necessary to flip the rotating seat. When the rotating seat rotates, the tapered rod can slide out of the positioning hole and slide along the side wall of the rotating seat. At the same time, the fourth spring is compressed. When the tapered rod is aligned with the other positioning hole, the tapered rod can be inserted into the other positioning hole for positioning under the action of the fourth spring, thereby realizing the turning of the rotating seat by 180 degrees. Then, the clamping claw is moved and adjusted, and the tubular part is inserted into the clamping claw and its end is against the clamping claw. Similarly, the outer conical surface of the tubular part can be against the outer taper surface of the tubular part by the ejector rod to realize center clamping and fixing. It has stronger applicability, is more convenient and quick to use, does not require reciprocating clamping tooling, and can improve processing efficiency and quality.

[0020] S4: After the push rod clamps and fixes the tubular part, the moving frame is driven to move away from the mounting frame through the moving module, thereby driving the pushing block to move and abut against the sealing plate, thereby pushing the sealing plate to slide into the fixed cover, so that the second through hole and the fixed pipe are staggered. At the same time, the first spring is compressed. At this time, the fixed pipe can be closed to avoid the influence of hydraulic pressure changes, so that the push rod can better clamp and fix the tubular part. At the same time, when the moving frame moves, the slider can drive the ring to move, and the L-shaped block can drive the limit block to move, so that the second moving block is stuck in the limit groove for limit, avoiding the loosening of the tapered rod, which is more stable and reliable.

[0021] S5: After the push rod clamps and fixes the tubular part, under the action of hydraulic pressure, the moving rod and the first moving block can be pushed to move away from the casing. At the same time, the third spring is compressed, and multiple first moving blocks move synchronously. At this time, the moving plate can be pushed to move through the V-shaped block and the first connecting plate, and at the same time, the L-shaped plate is driven to move on the guide rail. When leakage occurs between a push rod and the casing, the pressure in the casing becomes smaller. At this time, the first moving block and the moving rod can move towards the casing under the action of the third spring. At the same time, the first moving block and the V-shaped The inclined surfaces of the blocks are against each other, and the first moving block of the side wall of the casing where no leakage occurs remains stationary. At this time, the moving plate and the L-shaped plate will not perform reset movement, thereby being able to push the moving plate to move upward. When the moving plate moves upward, the sensing block is driven to move upward. At the same time, the second spring is compressed, and after being detected by the proximity switch, the external alarm sounds an alarm. At this time, the operator can observe which first moving block is closer to the casing, and can determine which casing and push rod are leaking, and can promptly inspect and maintain them to ensure the clamping and fixing effect of the push rod on the tubular parts.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a clamping mechanism, etc., and when it is necessary to process the outer taper of a tubular part, the clamping jaws of the three-jaw chuck are first moved and adjusted, and then the tubular part is sleeved on the side wall of the clamping jaw and the end of the clamping jaw is abutted against the clamping jaw, and then the cylinder is started to drive the push plate to move upward, so that the hydraulic oil in the hollow cover can be squeezed and enter the sleeve through the fixed pipe. Under the action of the hydraulic pressure, the push rod can be pushed to move in the direction away from the hollow cover and abut against the inner hole of the tubular part, so that the tubular part is clamped and fixed in the center, which can not only adapt to the taper of the inner hole, but also ensure that the extrusion force of each push rod on the inner hole is constant, thereby ensuring the efficiency and effect of clamping and fixing, and further ensuring the efficiency of precision machining of the taper. When it is necessary to process the inner taper of the tubular part, it is only necessary to flip the rotating seat. When the rotating seat rotates, the tapered rod can slide out of the positioning hole and slide along the side wall of the rotating seat. At the same time, the fourth spring is compressed. When the tapered rod is aligned with the other positioning hole, the tapered rod can be inserted into the other positioning hole for positioning under the action of the fourth spring, thereby realizing the turning of the rotating seat by 180 degrees. Then, the claws are moved and adjusted, and the tubular part is inserted into the claws and its end is against the claws. Similarly, the outer conical surface of the tubular part can be against the outer taper surface of the tubular part by the push rod to realize center clamping and fixing. It has stronger applicability, is more convenient and quick to use, does not require reciprocating clamping tooling, and can improve processing efficiency and quality.

[0024] The present invention is provided with an opening and closing mechanism, etc., and after the push rod clamps and fixes the tubular part, the moving frame is driven by the moving module to move in a direction away from the mounting frame, thereby driving the pushing block to move and abut against the sealing plate, thereby pushing the sealing plate to slide into the fixed cover, so that the second through hole and the fixed pipe are staggered. At the same time, the first spring is compressed. At this time, the fixed pipe can be closed to avoid the influence of hydraulic changes, so that the push rod has a better clamping and fixing effect on the tubular part. At the same time, when the moving frame moves, the circular ring can be driven to move by the slider, and the limit block can be driven to move by the L-shaped block, so that the second moving block is stuck in the limit groove for limit, thereby avoiding loosening of the tapered rod and being more stable and reliable.

[0025] The present invention is provided with a detection mechanism, etc., after the push rod clamps and fixes the tubular part, under the action of hydraulic pressure, the moving rod and the first moving block can be pushed to move in the direction away from the sleeve, and at the same time, the third spring is compressed, and the plurality of first moving blocks move synchronously. At this time, the moving plate can be pushed to move by the V-shaped block and the first connecting plate, and at the same time, the L-shaped plate is driven to move on the guide rail. When leakage occurs between a push rod and the sleeve, the pressure in the sleeve becomes smaller. At this time, the first moving block and the moving rod can be moved in the direction close to the sleeve under the action of the third spring, and at the same time, the first moving block and the moving rod can be moved in the direction close to the sleeve under the action of the third spring. The moving block abuts against the inclined surface of the V-block, while the first moving block on the side wall of the casing where no leakage occurs remains stationary. At this time, the moving plate and the L-shaped plate will not perform reset movement, thereby being able to push the moving plate to move upward. When the moving plate moves upward, it drives the sensing block to move upward. At the same time, the second spring is compressed, and after detection by the proximity switch, the external alarm sounds an alarm. At this time, the operator can observe which first moving block is closer to the casing, and can determine which casing and push rod are leaking, and promptly inspect and maintain them to ensure the clamping and fixing effect of the push rod on the tubular parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the clamping mechanism in the present invention;

[0028] Figure 3 It is a partial cross-sectional schematic diagram of the clamping mechanism in the present invention;

[0029] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0031] Figure 6 for Figure 3 Enlarged view of point C in the middle;

[0032] Figure 7 for Figure 3 Enlarged view of point D in the middle;

[0033] Figure 8 for Figure 4 Enlarged view of point E in the middle.

[0034] In the figure: 101, housing; 102, tool module; 103, three-jaw chuck; 104, claw; 201, L-shaped plate; 202, moving plate; 203, induction block; 204, proximity switch; 205, moving rod; 206, first connecting plate; 207, first moving block; 208, V-shaped block; 209, guide rail; 301, positioning hole; 302, second moving block; 303, tapered rod; 401, fixed cover; 402, first through hole; 403, sealing plate; 404, second through hole; 405, first spring; 501, moving frame; 502, moving module; 503, push Block; 601, first T-shaped guide rod; 602, L-shaped block; 603, limit block; 604, limit groove; 605, ring; 606, annular groove; 607, slider; 701, guide tube; 702, guide rod; 703, second spring; 801, second connecting plate; 802, third T-shaped guide rod; 803, fourth spring; 901, second T-shaped guide rod; 902, third spring; 1001, mounting bracket; 1002, rotating seat; 1003, hollow cover; 1004, fixed tube; 1005, sleeve; 1006, push rod; 1007, push plate; 1008, cylinder. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 8 , a part taper precision machining equipment shown in the figure comprises a housing 101, a tool module 102 and a three-jaw chuck 103 arranged on a machining center, and the three-jaw chuck 103 has a plurality of claws 104 arranged in an array, and the side wall of each claw 104 is provided with a clamping mechanism for clamping and fixing a tubular part;

[0037] The clamping mechanism includes a mounting frame 1001 detachably connected to the side wall of the clamping claw 104, and the side wall of the mounting frame 1001 is rotatably connected to a rotating seat 1002, the end of the rotating seat 1002 is fixedly connected to a hollow cover 1003, and the top of the hollow cover 1003 is fixedly inserted with a plurality of fixed pipes 1004 arranged in an array, the upper end of each fixed pipe 1004 is fixedly connected to a sleeve 1005, and a push rod 1006 is inserted in the sleeve 1005, the hollow cover 1003 is filled with hydraulic oil, and a push plate 1007 is slidably connected to the hollow cover 100 3 is fixedly connected with a cylinder 1008, and the telescopic end of the cylinder 1008 is fixed to the bottom of the push plate 1007, the top of the hollow cover 1003 is provided with a detection mechanism for detecting the sealing of the sleeve 1005, the side walls of each fixed tube 1004 are provided with an opening and closing mechanism, and the side wall of the mounting frame 1001 is provided with a positioning mechanism for positioning the rotating seat 1002, which is convenient for centering and clamping tubular parts with inner and outer tapers, without the need for reciprocating clamping tooling, ensuring the efficiency and effect of clamping and fixing, and then ensuring the efficiency and quality of taper precision machining.

[0038] The detection mechanism includes a guide rail 209 fixedly connected to the top of the hollow cover 1003, an L-shaped plate 201 is slidably connected to the guide rail 209, and the bottom of the L-shaped plate 201 is connected to a moving plate 202 through a first reset mechanism, a plurality of first connecting plates 206 are fixedly connected to the side wall of the moving plate 202, and a V-shaped block 208 is fixedly connected to the bottom of the first connecting plate 206, and a moving rod 205 is inserted into the side wall of each sleeve 1005, and the end of the moving rod 205 is fixedly connected to a first moving block 207, and the first moving block 207 is inserted into the V-shaped block 208. 8, and a second reset mechanism is provided between the first moving block 207 and the sleeve 1005, a proximity switch 204 is fixedly connected to the top of the L-shaped plate 201, the proximity switch 204 is electrically connected to the external alarm, and a sensing block 203 is fixedly connected to the top of the moving plate 202. After the top rod 1006 clamps the tubular part, under the action of hydraulic pressure, the moving rod 205 and the first moving block 207 can be pushed to move away from the sleeve 1005, and multiple first moving blocks 207 move synchronously. At this time, the V-block 20 8 and the first connecting plate 206 push the moving plate 202 to move, and at the same time, drive the L-shaped plate 201 to move on the guide rail 209. When leakage occurs between a certain push rod 1006 and the sleeve 1005, the pressure in the sleeve 1005 decreases. At this time, the first moving block 207 and the moving rod 205 can move towards the sleeve 1005 under the action of the second reset mechanism. At the same time, the first moving block 207 and the inclined surface of the V-shaped block 208 are against each other, and the first moving block 207 on the side wall of the sleeve 1005 where no leakage occurs remains stationary. When the movable plate 202 and the L-shaped plate 201 are in a state of being moved, the movable plate 202 and the L-shaped plate 201 will not be reset, thereby pushing the movable plate 202 to move upward. When the movable plate 202 moves upward, the sensing block 203 is driven to move upward, and after being detected by the proximity switch 204, the external alarm sounds an alarm. At this time, the operator can observe which first movable block 207 is closer to the sleeve 1005, and thus determine which sleeve 1006 and push rod 1005 are leaking, and perform timely inspection and maintenance on them to ensure the clamping and fixing effect of the push rod 1006 on the tubular parts.

[0039] The opening and closing mechanism includes a fixed cover 401 fixedly inserted in the side wall of the fixed tube 1004, and the fixed cover 401 is connected to the fixed tube 1004, a first through hole 402 is provided at the bottom of the fixed cover 401, and the first through hole 402 is connected to the hollow cover 1003, a sealing plate 403 is slidably connected in the fixed cover 401, and a second through hole 404 is provided on the top of the sealing plate 403, a first spring 405 is fixedly connected between the sealing plate 403 and the fixed cover 401, and the movement of the sealing plate 403 is pushed by a pushing mechanism, after the push rod 1006 clamps and fixes the tubular part, the sealing plate 403 is pushed to slide into the fixed cover 401 by the pushing mechanism, so that the second through hole 404 is staggered with the fixed tube 1004, and at the same time, the first spring 405 is compressed, at this time, the fixed tube 1004 can be closed, and the influence of hydraulic pressure changes can be avoided, so that the clamping and fixing effect of the push rod 1006 on the tubular part is better.

[0040] The pushing mechanism includes a moving frame 501, and the moving frame 501 is connected to the end of the rotating seat 1002 through a moving module 502. The side wall of the moving frame 501 is fixedly connected with multiple L-shaped pushing blocks 503. The moving frame 501 is driven by the moving module 502 to move in a direction away from the mounting frame 1001, thereby driving the pushing block 503 to move and abut against the sealing plate 403, thereby pushing the sealing plate 403 to slide into the fixed cover 401. The moving module 502 is a well-known technology in the technical field and is not elaborated here.

[0041] The positioning mechanism includes two symmetrically arranged positioning holes 301 opened on the side wall of the rotating seat 1002, the two positioning holes 301 are arranged at 180°, and the side wall of the mounting frame 1001 is connected to the second moving block 302 through a third reset mechanism, and the side wall of the second moving block 302 is fixedly connected with a conical rod 303, the conical rod 303 is inserted in the positioning hole 301, and the side wall of the mounting frame 1001 is provided with a limiting mechanism for limiting the second moving block 302. It is only necessary to flip the rotating seat 1002. When the rotating seat 1002 rotates, the conical rod 303 can slide out of the positioning hole 301 and slide along the side wall of the rotating seat 1002. When the conical rod 303 is aligned with the other positioning hole 301, the conical rod 303 can be inserted into the other positioning hole 301 for positioning under the action of the third reset mechanism, thereby realizing the flipping of the rotating seat 1002 180 degrees.

[0042] The limiting mechanism includes two symmetrically arranged first T-shaped guide rods 601 fixedly connected to the side walls of the mounting frame 1001, and the side walls of the first T-shaped guide rods 601 are sleeved with L-shaped blocks 602, the bottom of the L-shaped blocks 602 is fixedly connected to the limiting blocks 603, and the side walls of the limiting blocks 603 are provided with a plurality of limiting grooves 604 arranged in an array, the side walls of the L-shaped blocks 602 are fixedly connected with a circular ring 605, and the end of the circular ring 605 is provided with an annular groove 606, a slider 607 is slidably connected in the annular groove 606, and the slider 607 is fixed to the moving frame 501. When the moving frame 501 moves, the circular ring 605 can be driven to move by the slider 607, and the limiting block 603 can be driven to move by the L-shaped block 602, so that the second moving block 302 is stuck in the limiting groove 604 for limiting, thereby avoiding the loosening of the tapered rod 303 and being more stable and reliable.

[0043] The first reset mechanism includes two symmetrically arranged guide rods 702 fixedly connected to the bottom of the L-shaped plate 201, and the side wall of each guide rod 702 is sleeved with a guide tube 701, the lower end of the guide tube 701 is fixed to the top of the movable plate 202, and the side wall of each guide tube 701 is sleeved with a second spring 703, which guides and resets the movement of the movable plate 202.

[0044] The second reset mechanism includes two symmetrically arranged second T-shaped guide rods 901 fixedly connected to the side walls of the sleeve 1005, the first moving block 207 is sleeved on the side walls of the second T-shaped guide rods 901, and the side walls of each second T-shaped guide rod 901 are sleeved with a third spring 902, which guides and resets the movement of the first moving block 207.

[0045] The third reset mechanism includes two symmetrically arranged third T-shaped guide rods 802 fixedly connected to the side walls of the second moving block 302, and the side walls of the third T-shaped guide rods 802 are sleeved with second connecting plates 801, the second connecting plates 801 are fixed to the side walls of the mounting frame 1001, and the side walls of each third T-shaped guide rod 802 are sleeved with fourth springs 803, which play a guiding and reset role for the movement of the second moving block 302.

[0046] A part taper precision machining process, using the above-mentioned part taper precision machining equipment, is characterized by comprising the following steps:

[0047] S1: When it is necessary to process the outer taper of a tubular part, first move and adjust the clamping jaw 104 of the three-jaw chuck 103, then sleeve the tubular part on the side wall of the clamping jaw 104 and make its end abut against the clamping jaw 104, then start the cylinder 1008 to drive the push plate 1007 to move upward, so that the hydraulic oil in the hollow cover 1003 can be squeezed and enter the sleeve 1005 through the fixed tube 1004. Under the action of the hydraulic pressure, the push rod 1006 can be pushed to move away from the hollow cover 1003 and abut against the inner hole of the tubular part, so as to realize the centering clamping and fixing of the tubular part, which can not only adapt to the taper of the inner hole, but also ensure that the squeezing force of each push rod 1006 on the inner hole is constant, thereby ensuring the efficiency and effect of clamping and fixing, and further ensuring the efficiency of precision machining of the taper;

[0048] S2: Then, the three-jaw chuck 103 is rotated, and the tool module 102 is used to process the outer taper of the tubular part;

[0049] S3: When it is necessary to process the inner taper of the tubular part, it is only necessary to flip the rotating seat 1002. When the rotating seat 1002 rotates, the tapered rod 303 can slide out of the positioning hole 301 and slide along the side wall of the rotating seat 1002. At the same time, the fourth spring 803 is compressed. When the tapered rod 303 is aligned with the other positioning hole 301, the tapered rod 303 can be inserted into the other positioning hole 301 for positioning under the action of the fourth spring 803, thereby realizing the turning of the rotating seat 1002 by 180 degrees. Then, the clamping claw 104 is moved and adjusted, and the tubular part is inserted into the clamping claw 104 and its end is against the clamping claw 104. Similarly, the outer conical surface of the tubular part can be against the outer conical surface of the tubular part by the push rod 1006 to realize center clamping and fixing. It has stronger applicability, is more convenient and quick to use, does not require reciprocating clamping tooling, and can improve processing efficiency and quality.

[0050] S4: After the push rod 1006 clamps and fixes the tubular part, the moving frame 501 is driven to move away from the mounting frame 1001 through the moving module 502, thereby driving the pushing block 503 to move and abut against the sealing plate 403, thereby pushing the sealing plate 403 to slide into the fixed cover 401, so that the second through hole 404 and the fixed tube 1004 are staggered. At the same time, the first spring 405 is compressed. At this time, the fixed tube 1004 can be closed to avoid the influence of hydraulic pressure changes, so that the push rod 1006 can better clamp and fix the tubular part. At the same time, when the moving frame 501 moves, the slider 607 can drive the ring 605 to move, and the L-shaped block 602 can drive the limit block 603 to move, so that the second moving block 302 is stuck in the limit groove 604 for limit, avoiding the loosening of the tapered rod 303, which is more stable and reliable.

[0051] S5: After the push rod 1006 clamps and fixes the tubular part, under the action of hydraulic pressure, the moving rod 205 and the first moving block 207 can be pushed to move away from the sleeve 1005. At the same time, the third spring 902 is compressed, and multiple first moving blocks 207 move synchronously. At this time, the moving plate 202 can be pushed to move by the V-block 208 and the first connecting plate 206, and at the same time, the L-shaped plate 201 is driven to move on the guide rail 209. When leakage occurs between a push rod 1006 and the sleeve 1005, the pressure in the sleeve 1005 becomes smaller. At this time, the first moving block 207 and the moving rod 205 can move towards the sleeve 1005 under the action of the third spring 902. At the same time, the first moving block 207 abuts against the inclined surface of the V-block 208, and the first movable block 207 of the side wall of the sleeve 1005 where no leakage occurs remains stationary. At this time, the movable plate 202 and the L-shaped plate 201 will not perform reset movement, thereby being able to push the movable plate 202 to move upward. When the movable plate 202 moves upward, it drives the sensing block 203 to move upward. At the same time, the second spring 703 is compressed and detected by the proximity switch 204, so that the external alarm sounds an alarm. At this time, the operator can observe which first movable block 207 is getting closer to the sleeve 1005, and can determine which sleeve 1006 and push rod 1005 are leaking, and can promptly inspect and maintain them to ensure the clamping and fixing effect of the push rod 1006 on the tubular parts.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A part taper precision machining device, comprising a housing (101) arranged on a machining center, a tool module (102) and a three-jaw chuck (103), wherein the three-jaw chuck (103) has a plurality of claws (104) arranged in an array, characterized in that: The side wall of each of the clamping claws (104) is provided with a clamping mechanism for clamping and fixing the tubular part; The clamping mechanism comprises a mounting frame (1001) detachably connected to the side wall of the clamping claw (104), and the side wall of the mounting frame (1001) is rotatably connected to a rotating seat (1002), the end of the rotating seat (1002) is fixedly connected to a hollow cover (1003), and the top of the hollow cover (1003) is fixedly inserted with a plurality of fixed tubes (1004) arranged in an array, the upper end of each of the fixed tubes (1004) is fixedly connected to a sleeve (1005), and a top rod (1006) is inserted into the sleeve (1005), and the hollow cover (1003) is filled with There is hydraulic oil, and a push plate (1007) is slidably connected inside the hollow cover (1003), a cylinder (1008) is fixedly connected to the bottom of the hollow cover (1003), and the telescopic end of the cylinder (1008) is fixed to the bottom of the push plate (1007), a detection mechanism for detecting the sealing of the sleeve (1005) is arranged on the top of the hollow cover (1003), an opening and closing mechanism is arranged on the side wall of each of the fixed tubes (1004), and a positioning mechanism for positioning the rotating seat (1002) is arranged on the side wall of the mounting frame (1001).

2. The part taper precision machining equipment according to claim 1, characterized in that: The detection mechanism comprises a guide rail (209) fixedly connected to the top of the hollow cover (1003), an L-shaped plate (201) being slidably connected to the guide rail (209), and the bottom of the L-shaped plate (201) is connected to a movable plate (202) via a first reset mechanism, a plurality of first connecting plates (206) are fixedly connected to the side wall of the movable plate (202), and a V-shaped block (208) is fixedly connected to the bottom of the first connecting plate (206), and each sleeve (100 5), a moving rod (205) is inserted into the side wall, and the end of the moving rod (205) is fixedly connected to a first moving block (207), the first moving block (207) is inserted into the V-shaped block (208), and a second reset mechanism is provided between the first moving block (207) and the sleeve (1005), the top of the L-shaped plate (201) is fixedly connected to a proximity switch (204), and the top of the moving plate (202) is fixedly connected to a sensing block (203).

3. The part taper precision machining equipment according to claim 1 is characterized in that: The opening and closing mechanism comprises a fixed cover (401) fixedly inserted in the side wall of the fixed tube (1004), and the fixed cover (401) is connected to the fixed tube (1004), a first through hole (402) is provided at the bottom of the fixed cover (401), and the first through hole (402) is connected to the hollow cover (1003), a sealing plate (403) is slidably connected inside the fixed cover (401), and a second through hole (404) is provided at the top of the sealing plate (403), a first spring (405) is fixedly connected between the sealing plate (403) and the fixed cover (401), and the movement of the sealing plate (403) is driven by a driving mechanism.

4. The part taper precision machining equipment according to claim 3 is characterized in that: The pushing mechanism comprises a moving frame (501), and the moving frame (501) is connected to the end of the rotating seat (1002) through a moving module (502), and a plurality of L-shaped pushing blocks (503) are fixedly connected to the side wall of the moving frame (501).

5. The part taper precision machining equipment according to claim 1, characterized in that: The positioning mechanism comprises two symmetrically arranged positioning holes (301) opened on the side wall of the rotating seat (1002), and the side wall of the mounting frame (1001) is connected to the second moving block (302) through a third reset mechanism, the side wall of the second moving block (302) is fixedly connected to a conical rod (303), the conical rod (303) is inserted into the positioning hole (301), and the side wall of the mounting frame (1001) is provided with a limiting mechanism for limiting the second moving block (302).

6. The part taper precision machining equipment according to claim 5, characterized in that: The limiting mechanism comprises two symmetrically arranged first T-shaped guide rods (601) fixedly connected to the side walls of the mounting frame (1001), and the side walls of the first T-shaped guide rods (601) are sleeved with L-shaped blocks (602), the bottom of the L-shaped blocks (602) are fixedly connected to the limiting blocks (603), and the side walls of the limiting blocks (603) are provided with a plurality of limiting grooves (604) arranged in an array, the side walls of the L-shaped blocks (602) are fixedly connected to the rings (605), and the ends of the rings (605) are provided with an annular groove (606), a slider (607) is slidably connected in the annular groove (606), and the slider (607) is fixed to the moving frame (501).

7. The part taper precision machining equipment according to claim 2, characterized in that: The first reset mechanism comprises two symmetrically arranged guide rods (702) fixedly connected to the bottom of the L-shaped plate (201), and the side wall of each guide rod (702) is sleeved with a guide tube (701), the lower end of the guide tube (701) is fixed to the top of the movable plate (202), and the side wall of each guide tube (701) is sleeved with a second spring (703).

8. The part taper precision machining equipment according to claim 2, characterized in that: The second reset mechanism comprises two symmetrically arranged second T-shaped guide rods (901) fixedly connected to the side wall of the sleeve (1005), the first moving block (207) is sleeved on the side wall of the second T-shaped guide rod (901), and the side wall of each second T-shaped guide rod (901) is sleeved with a third spring (902).

9. The part taper precision machining equipment according to claim 5, characterized in that: The third reset mechanism comprises two symmetrically arranged third T-shaped guide rods (802) fixedly connected to the side wall of the second moving block (302), and the side wall of the third T-shaped guide rod (802) is sleeved with a second connecting plate (801), the second connecting plate (801) is fixed to the side wall of the mounting frame (1001), and the side wall of each third T-shaped guide rod (802) is sleeved with a fourth spring (803).

10. A part taper precision machining process, using a part taper precision machining device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When it is necessary to process the external taper of the tubular part, the clamping jaw (104) of the three-jaw chuck (103) is first moved and adjusted, and then the tubular part is sleeved on the side wall of the clamping jaw (104) and the end of the clamping jaw (104) is abutted against the clamping jaw (104). Then, the cylinder (1008) is started to drive the push plate (1007) to move upward, so that the hydraulic oil in the hollow cover (1003) can be squeezed and enter the sleeve (1005) through the fixed pipe (1004). Under the action of the hydraulic pressure, the push rod (1006) can be pushed to move in a direction away from the hollow cover (1003) and abut against the inner hole of the tubular part, so as to achieve the centering clamping and fixing of the tubular part; S2: Then, the three-jaw chuck (103) is rotated, and the tool module (102) is used to process the outer taper of the tubular part; S3: When it is necessary to process the inner taper of the tubular part, it is only necessary to flip the rotating seat (1002). When the rotating seat (1002) rotates, the tapered rod (303) can slide out of the positioning hole (301) and slide along the side wall of the rotating seat (1002). At the same time, the fourth spring (803) is compressed. When the tapered rod (303) is aligned with the other positioning hole (301), the tapered rod (303) can be inserted into the other positioning hole (301) for positioning under the action of the fourth spring (803), thereby realizing the turning of the rotating seat (1002) by 180 degrees. Then, the clamping claw (104) is moved and adjusted, and the tubular part is inserted into the clamping claw (104) and its end is abutted against the clamping claw (104). Similarly, the outer conical surface of the tubular part can be abutted by the ejector rod (1006) to realize center clamping and fixing. S4: After the push rod (1006) clamps and fixes the tubular part, the moving frame (501) is driven to move away from the mounting frame (1001) through the moving module (502), thereby driving the pushing block (503) to move and abut against the sealing plate (403), thereby pushing the sealing plate (403) to slide into the fixed cover (401), so that the second through hole (404) and the fixed tube (1004) are staggered. At the same time, the first spring (405) is compressed. At this time, the fixed tube (1004) can be closed, and the influence of hydraulic pressure changes can be avoided, so that the push rod (1006) can better clamp and fix the tubular part. At the same time, when the moving frame (501) moves, the slider (607) can drive the ring (605) to move, and the L-shaped block (602) can drive the limit block (603) to move, so that the second moving block (302) is stuck in the limit groove (604) for limiting. S5: After the push rod (1006) clamps and fixes the tubular part, under the action of hydraulic pressure, the moving rod (205) and the first moving block (207) can be pushed to move in a direction away from the sleeve (1005). At the same time, the third spring (902) is compressed, and the multiple first moving blocks (207) move synchronously. At this time, the moving plate (202) can be pushed to move through the V-shaped block (208) and the first connecting plate (206). At the same time, the L-shaped plate (201) is driven to move on the guide rail (209). When leakage occurs between a push rod (1006) and the sleeve (1005), the pressure in the sleeve (1005) decreases. At this time, the first moving block (207) and the moving rod (205) can be moved in a direction close to the sleeve (1005) under the action of the third spring (902). At the same time, the first moving block (207) and the moving rod (205) can be moved in a direction close to the sleeve (1005) under the action of the third spring (902). The movable block (207) abuts against the inclined surface of the V-shaped block (208), while the first movable block (207) on the side wall of the sleeve (1005) where no leakage occurs remains stationary. At this time, the movable plate (202) and the L-shaped plate (201) will not perform reset movement, thereby being able to push the movable plate (202) to move upward. When the movable plate (202) moves upward, it drives the sensing block (203) to move upward. At the same time, the second spring (703) is compressed and, after being detected by the proximity switch (204), an external alarm sounds an alarm. At this time, the operator can observe which first movable block (207) is closer to the sleeve (1005), and can determine which sleeve (1006) and push rod (1005) are leaking, and can promptly inspect and maintain them to ensure the clamping and fixing effect of the push rod (1006) on the tubular parts.

Images