阅读说明：本技术 电极回转半径自适应阀门除屑整形机械手 (Electrode turning radius self-adaptive valve scrap removing and shaping manipulator ) 是由 秦群 于 2020-10-12 设计创作，主要内容包括：本发明公开了一种电极回转半径自适应阀门除屑整形机械手,包括机架、Y轴位移装置、旋转卡紧装置、X轴位移装置、Z轴位移装置和除屑整形装置；Y轴位移装置安装在机架的竖直侧面上,旋转卡紧装置安装在Y轴位移装置的输出端上,X轴位移装置安装在机架的顶端,X轴位移装置安装在X轴位移装置的输出端上,除屑整形装置安装在Z轴位移装置的输出端上；除屑整形装置包括除屑整形连接座、旋转整形电机、电机安装座、定心电推杆、推杆安装座、定心基座、三个摆臂、拉杆、呈U形的变径驱动块、U形的间隙调整支架、变径导向轨、间隙电推杆、变径滑块、电极连接块和除屑整形电极；本发明能自适应匹配不同规格的孔径,提高阀门的除屑整形作业的效率。(The invention discloses an electrode turning radius self-adaptive valve chip removing and shaping manipulator which comprises a rack, a Y-axis displacement device, a rotary clamping device, an X-axis displacement device, a Z-axis displacement device and a chip removing and shaping device, wherein the Y-axis displacement device is connected with the X-axis displacement device; the X-axis displacement device is arranged at the output end of the X-axis displacement device, and the scrap removing and shaping device is arranged at the output end of the Z-axis displacement device; the scrap removing and shaping device comprises a scrap removing and shaping connecting seat, a rotary shaping motor, a motor mounting seat, a centering electric push rod, a push rod mounting seat, a centering base, three swing arms, a pull rod, a U-shaped reducing driving block, a U-shaped gap adjusting support, a reducing guide rail, a gap electric push rod, a reducing sliding block, an electrode connecting block and a scrap removing and shaping electrode; the invention can adaptively match the apertures with different specifications and improve the efficiency of the chip removing and shaping operation of the valve.)

1. An electrode rotation radius self-adaptive valve chip removing and shaping manipulator is characterized by comprising a rack (1), a Y-axis displacement device (2), a rotary clamping device (3), an X-axis displacement device (4), a Z-axis displacement device (5) and a chip removing and shaping device (6); the Y-axis displacement device (2) is installed on the vertical side face of the rack (1), the rotary clamping device (3) is installed on the output end of the Y-axis displacement device (2), the X-axis displacement device (4) is installed at the top end of the rack (1), the X-axis displacement device (4) is installed on the output end of the X-axis displacement device (4), and the chip removing and shaping device (6) is installed on the output end of the Z-axis displacement device (5);

the scrap removing and shaping device (6) comprises a scrap removing and shaping connecting seat (6 a), a rotary shaping motor (6 b), a motor mounting seat (6 c), a centering electric push rod (6 d), a push rod mounting seat (6 e), a centering base (6 f), three swing arms (6 g), a pull rod (6 h), a U-shaped reducing driving block (6 i), a U-shaped gap adjusting support (6 j), a reducing guide rail (6 k), a gap electric push rod (6 l), a reducing sliding block (6 m), an electrode connecting block (6 n) and a scrap removing and shaping electrode (6 p); the chip removing and shaping connecting seat (6 a) is fixed at the output end of the Z-axis displacement device (5), the motor mounting seat (6 c) is fixed on the chip removing and shaping connecting seat (6 a), the rotary shaping electrode is fixed on the motor mounting seat (6 c), the push rod mounting seat (6 e) is rotatably connected on the motor mounting seat (6 c) and is connected with the output end of the rotary shaping electrode, the centering electric push rod (6 d) is fixed in the push rod mounting seat (6 e), the centering base (6 f) is fixed at the bottom of the push rod mounting seat (6 e), the three swing arms (6 g) are distributed at equal intervals, the middle parts of the three swing arms (6 g) are hinged on the centering base (6 f), one ends of the three swing arms (6 g) are rotatably connected with centering rollers (6 r), and the surface of the centering rollers (6 r) is of a spherical structure, one end of the pull rod (6 h) movably extends into the centering base (6 f), one end of the pull rod (6 h) corresponds to three swing arms (6 g) one by one and is provided with a strip-shaped hole (6 h 1) respectively, the other ends of the swing arms (6 g) are hinged to strip-shaped holes (6 h 1) respectively, two ends of the gap adjusting support (6 j) are fixed on the centering base (6 f), the reducing driving block (6 i) is positioned at an opening of the gap adjusting support (6 j), two ends of the reducing driving block (6 i) are provided with oblique guide holes (6 i 1) respectively, the pull rod (6 h) is connected with oblique guide holes (6 i 1) at two ends of the reducing driving block (6 i) through a reducing pin shaft (6 t), the gap electric push rod (6 l) is fixed at the bottom end of the gap adjusting support (6 j), and the reducing guide rails (6 k) are positioned in the gap adjusting support (6 j), the one end of reducing guided way (6 k) is connected with the output of clearance electric putter (6 l), the other end of pull rod (6 h) activity in proper order runs through the bottom of reducing guided way (6 k), clearance adjustment support (6 j), reducing slider (6 m) sliding connection is at the other end of reducing guided way (6 k), the top surface of reducing slider (6 m) is equipped with the spliced pole to the epirelief, the spliced pole activity runs through in the bottom of reducing drive block (6 i), electrode connecting block (6 n) are fixed on reducing slider (6 m), it fixes on electrode connecting block (6 n) to remove bits plastic electrode (6 p).

2. The electrode turning radius self-adaptive valve chip removing and shaping manipulator as claimed in claim 1, wherein the chip removing and shaping device (6) further comprises a sliding guide frame (6 s), the sliding guide frame (6 s) is movably connected to the centering base (6 f), and the reducing driving block (6 i) is fixedly connected with the sliding guide frame (6 s).

3. The electrode turning radius adaptive valve chip removing and reshaping manipulator according to claim 2, characterized in that the sliding guide frame (6 s) extends towards the centering base (6 f) with two guide rods, which movably penetrate through the centering base (6 f).

4. The electrode turning radius self-adaptive valve chip removing and shaping manipulator as claimed in claim 1, wherein a U-shaped notch is formed at the other end of the reducing guide rail (6 k), sliding grooves are formed in two ends of the U-shaped notch respectively, and two ends of the reducing sliding block (6 m) are correspondingly and slidably connected to the sliding grooves in the two ends of the U-shaped notch respectively.

5. The electrode turning radius self-adaptive valve chip removing and shaping manipulator as claimed in claim 1, wherein one end of the pull rod (6 h) corresponds to three swing arms (6 g) one by one and extends outwards to form three connecting lugs, the three connecting lugs are respectively provided with a strip-shaped hole (6 h 1), and the other ends of the three swing arms (6 g) correspond to the three connecting lugs and are hinged to the three connecting lugs through strip-shaped holes (6 h 1).

6. The electrode turning radius self-adaptive valve chip removing and shaping manipulator according to claim 1, wherein the Y-axis displacement device (2) comprises a base (2 a), a Y-axis driving motor (2B), a screw (2 c), a nut (2 d) and a sliding plate (2 e), the base (2 a) is fixed on the frame (1), the Y-axis driving motor (2B) is fixed on one end of the base (2 a), two ends of the screw (2 c) are respectively and rotatably connected on the base (2 a), one end of the Y-axis driving motor (2B) is in transmission connection with one end of the screw (2 c), the sliding plate (2 e) is in sliding connection on the base (2 a), and the nut (2 d) is in threaded connection on the screw (2 c) and is fixedly connected with the sliding plate (2 e).

7. The electrode slewing radius adaptive valve chip removing and shaping manipulator as claimed in claim 6, wherein the rotary clamping device (3) comprises a rotary clamping driving motor (3 a) and a rotary chuck (3 b), the rotary clamping driving motor (3 a) is fixed on the bottom surface of the sliding plate (2 e), and the rotary chuck (3 b) is rotatably connected to the top surface of the sliding plate (2 e) and is in transmission connection with the rotary clamping driving motor (3 a).

8. The electrode slewing radius adaptive valve chip removing and reshaping manipulator as claimed in claims 1-6, wherein the rotary clamping device (3) comprises a rotary clamping driving motor (3 a) and a rotary chuck (3 b), the rotary clamping driving motor (3 a) is fixed on the bottom surface of the sliding plate (2 e), and the rotary chuck (3 b) is rotatably connected on the top surface of the sliding plate (2 e) and is in transmission connection with the rotary clamping driving motor (3 a).

Technical Field

The invention relates to an electrode turning radius self-adaptive valve scrap removing and shaping manipulator.

Background

The valve mainly plays a control role in substances such as gas or liquid conveyed by a pipeline, the valve is frequently required to be punched during production and processing, a few adhesive fragments are easily accumulated at the connecting intersection line of the inner edge of the valve inner cavity and the inner edge of the hole (namely the intersection line of the hole), the fragments are required to be removed, and the inner orifice is not generally subjected to process treatment, so that the inner orifice is generally an acute angle, the passing resistance of the substances in the valve flowing through the inner orifice is influenced, the inner orifice is required to be subjected to shaping treatment, holes of various specifications are sometimes processed on the valve, tools of different specifications are required to be replaced during the valve fragment removing and shaping operation, and the efficiency is low.

Disclosure of Invention

The invention aims to overcome the defects and provide an electrode rotation radius self-adaptive valve scrap removing and shaping manipulator.

In order to achieve the purpose, the invention adopts the following specific scheme:

an electrode rotation radius self-adaptive valve chip removing and shaping manipulator comprises a rack, a Y-axis displacement device, a rotary clamping device, an X-axis displacement device, a Z-axis displacement device and a chip removing and shaping device; the Y-axis displacement device is installed on the vertical side face of the rack, the rotary clamping device is installed on the output end of the Y-axis displacement device, the X-axis displacement device is installed at the top end of the rack, the X-axis displacement device is installed on the output end of the X-axis displacement device, and the chip removing and shaping device is installed on the output end of the Z-axis displacement device;

the scrap removing and shaping device comprises a scrap removing and shaping connecting seat, a rotary shaping motor, a motor mounting seat, a centering electric push rod, a push rod mounting seat, a centering base, three swing arms, a pull rod, a U-shaped reducing driving block, a U-shaped gap adjusting support, a reducing guide rail, a gap electric push rod, a reducing sliding block, an electrode connecting block and a scrap removing and shaping electrode; the scrap removing and shaping connecting seat is fixed at the output end of the Z-axis displacement device, the motor mounting seat is fixed on the scrap removing and shaping connecting seat, the rotary shaping electrode is fixed on the motor mounting seat, the push rod mounting seat is rotatably connected on the motor mounting seat and is connected with the output end of the rotary shaping electrode, the centering electric push rod is fixed in the push rod mounting seat, the centering base is fixed at the bottom of the push rod mounting seat, the three swing arms are distributed at equal intervals, the middle parts of the three swing arms are hinged on the centering base, one ends of the three swing arms are rotatably connected with centering rollers, the surfaces of the centering rollers are of spherical structures, one ends of the pull rods movably extend into the centering base, one ends of the pull rods correspond to the three swing arms one by one to one and are respectively provided with a strip-shaped hole, the other ends of the three swing arms are respectively hinged on the strip-shaped hole, and two ends of, the reducing drive block is located the opening part of clearance adjustment support, the both ends of reducing drive block are provided with oblique guiding hole respectively, the pull rod is connected with the oblique guiding hole at reducing drive block both ends through reducing round pin axle, clearance electricity push rod fixes the bottom at clearance adjustment support, the reducing guided way is located the clearance adjustment support, the one end of reducing guided way is connected with the output of clearance electricity push rod, the other end of pull rod activity in proper order runs through the bottom of reducing guided way, clearance adjustment support, reducing slider sliding connection is at the other end of reducing guided way, the top surface of reducing slider is equipped with the spliced pole to the epirelief, the spliced pole activity runs through in the bottom of reducing drive block, the electrode connecting block is fixed on the reducing slider, it fixes on the electrode connecting block to remove bits plastic electrode.

The chip removing and shaping device further comprises a sliding guide frame, the sliding guide frame is movably connected to the centering base, and the reducing driving block is fixedly connected with the sliding guide frame.

The sliding guide frame extends towards the centering base to form two guide rods, and the two guide rods movably penetrate through the centering base.

The other end of the reducing guide rail is provided with a U-shaped notch, two ends of the U-shaped notch are respectively provided with a sliding groove, and two ends of the reducing sliding block are respectively connected to the sliding grooves at two ends of the U-shaped notch in a sliding mode correspondingly.

The one end one-to-one of pull rod three swing arms extend outward and have three engaging lug, and is three the bar hole has been seted up respectively on the engaging lug, and is three the other end one-to-one of swing arm is articulated through bar hole and three engaging lug.

The Y-axis displacement device comprises a base, a Y-axis driving motor, a screw, a nut and a sliding plate, wherein the base is fixed on the rack, the Y-axis driving motor is fixed on one end of the base, two ends of the screw are respectively and rotatably connected to the base, one end of the Y-axis driving motor is in transmission connection with one end of the screw, the sliding plate is in sliding connection with the base, and the nut is in threaded connection with the screw and is fixedly connected with the sliding plate.

The rotary clamping device comprises a rotary clamping driving motor and a rotary chuck, the rotary clamping driving motor is fixed on the bottom surface of the sliding plate, and the rotary chuck is rotatably connected to the top surface of the sliding plate and is in transmission connection with the rotary clamping driving motor.

The invention has the beneficial effects that: compared with the prior art, the valve chip removing shaping device has the advantages that the pull rod is in linkage fit with the inclined guide hole of the reducing driving block, so that the centering rollers on the three swing arms are in contact fit with the hole wall to realize centering, meanwhile, the chip removing shaping electrode is driven to realize reducing, the hole diameters of different specifications are matched in a self-adaptive mode, tools of different specifications are not required to be replaced, the positioning and adjusting speed and the working precision of the whole chip removing shaping device are improved, the universality is high, then chip removing operation is carried out on a hole intersection line through an arc discharge principle, shaping and blunt processing are carried out on a hole opening, and the efficiency of the chip removing shaping operation of the.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the chip removing and shaping device of the present invention;

FIG. 3 is a schematic cross-sectional view of the chip removing and shaping device of the present invention;

FIG. 4 is an exploded view of the chip removing and shaping apparatus of the present invention;

FIG. 5 is a schematic structural view of a swing arm in the scrap removing and shaping apparatus of the present invention in a horizontal state;

FIG. 6 is a schematic view of the structure of the Y-axis displacement device of the present invention;

FIG. 7 is a schematic structural view of the spin chuck apparatus of the present invention;

description of reference numerals: 1-a frame; 2-Y axis displacement means; 2 a-a base; 2b-Y axis drive motors; 2 c-a screw; 2 d-nut; 2 e-a slide plate; 3-rotating the clamping device; 3 a-rotating the chucking driving motor; 3 b-rotating chuck; 4-X axis displacement means; a 5-Z axis displacement device; 6-chip removing and shaping device; 6 a-chip removing and shaping connecting seat; 6 b-a rotating shaping motor; 6 c-a motor mounting seat; 6 d-centering the electric push rod; 6 e-a push rod mounting seat; 6 f-centering the base; 6 g-swing arm; 6 h-pull rod; 6h 1-strip shaped holes; 6 i-a reducing driving block; 6i 1-oblique guide holes; 6 j-gap adjusting bracket; 6 k-diameter-variable guide rails; 6 l-gap electric push rod; 6 m-diameter-variable sliding block; 6 n-electrode connecting block; 6 p-chip removing and shaping electrode; 6 r-centering roller; 6 s-sliding guide frame; 6 t-reducing pin shaft.

Detailed Description

The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.

As shown in fig. 1 to 7, the electrode turning radius adaptive valve chip removing and shaping manipulator according to the embodiment includes a frame 1, a Y-axis displacement device 2, a rotating clamping device 3, an X-axis displacement device 4, a Z-axis displacement device 5, and a chip removing and shaping device 6; the Y-axis displacement device 2 is installed on the vertical side face of the rack 1, the rotary clamping device 3 is installed on the output end of the Y-axis displacement device 2, the X-axis displacement device 4 is installed at the top end of the rack 1, the X-axis displacement device 4 is installed on the output end of the X-axis displacement device 4, and the chip removing and shaping device 6 is installed on the output end of the Z-axis displacement device 5;

the scrap removing and shaping device 6 comprises a scrap removing and shaping connecting seat 6a, a rotary shaping motor 6b, a motor mounting seat 6c, a centering electric push rod 6d, a push rod mounting seat 6e, a centering base 6f, three swing arms 6g, a pull rod 6h, a U-shaped reducing driving block 6i, a U-shaped gap adjusting support 6j, a reducing guide rail 6k, a gap electric push rod 6l, a reducing sliding block 6m, an electrode connecting block 6n and a scrap removing and shaping electrode 6 p; the chip removing and shaping connecting seat 6a is fixed at the output end of the Z-axis displacement device 5, the motor mounting seat 6c is fixed on the chip removing and shaping connecting seat 6a, the rotary shaping electrode is fixed on the motor mounting seat 6c, the push rod mounting seat 6e is rotatably connected on the motor mounting seat 6c and is connected with the output end of the rotary shaping electrode, the centering electric push rod 6d is fixed in the push rod mounting seat 6e, the centering base 6f is fixed at the bottom of the push rod mounting seat 6e, the three swing arms 6g are distributed at equal intervals, the middle parts of the three swing arms 6g are hinged on the centering base 6f, one ends of the three swing arms 6g are rotatably connected with the centering roller 6r, the surface of the centering roller 6r is of a spherical structure, one end of the pull rod 6h movably extends into the centering base 6f, one end of the pull rod 6h is provided with strip-shaped holes 6h1 corresponding to the three swing arms 6g one by one, the other ends of the three swing arms 6g are respectively hinged to strip-shaped holes 6h1, two ends of the gap adjusting support 6j are fixed on the centering base 6f, the reducing driving block 6i is positioned at the opening of the gap adjusting support 6j, two ends of the reducing driving block 6i are respectively provided with an inclined guide hole 6i1, the pull rod 6h is connected with the inclined guide holes 6i1 at the two ends of the reducing driving block 6i through a reducing pin shaft 6t, the gap electric push rod 6l is fixed at the bottom end of the gap adjusting support 6j, the reducing guide rail 6k is positioned in the gap adjusting support 6j, one end of the reducing guide rail 6k is connected with the output end of the gap electric push rod 6l, the other end of the pull rod 6h sequentially and movably penetrates through the reducing guide rail 6k and the bottom end of the gap adjusting support 6j, and the reducing sliding block 6m is slidably connected with the other end of the reducing guide, the top surface of the reducing sliding block 6m is provided with a connecting column in an upward protruding mode, the connecting column movably penetrates through the bottom end of the reducing driving block 6i, the electrode connecting block 6n is fixed on the reducing sliding block 6m, and the chip removing and shaping electrode 6p is fixed on the electrode connecting block 6 n.

The working mode of the embodiment is as follows: when the valve is in work, a valve to be subjected to chip removal shaping operation is placed on the rotary clamping device 3, the rotary clamping device 3 rotates and clamps and positions the valve, then the Y-axis displacement device 2 drives the valve to move upwards along the Y direction until the valve is at a certain height away from the chip removal shaping device 6, then the X-axis displacement device 4 drives the chip removal shaping device 6 to move to the position right above the valve along the X direction, so that the chip removal shaping device 6 is aligned with a hole in the valve, then the Z-axis displacement device 5 drives the chip removal shaping device 6 to downwards probe, so that the chip removal shaping device 6 extends into the hole of the valve until a chip removal shaping electrode 6p of the chip removal shaping device 6 exceeds the intersection line of the inner cavity of the valve and the inner edge of the hole, namely the chip removal shaping electrode 6p is already positioned in the inner cavity of the valve, then the directional electric push rod drives the pull rod 6h to move upwards, so that the three swing arms 6g are driven by the pull, until the centering roller 6r on the swing arm 6g contacts with the hole wall of the hole, the hole wall is taken as a centering reference, the positioning precision requirement of each displacement device is reduced, the coaxiality and the uniformity of the chip removing shaping electrode 6p for the hole opening shaping are improved, meanwhile, the reducing pin shaft 6t moves along the inclined guide hole 6i1 on the reducing driving block 6i in the process of moving up along with the pull rod 6h, so that the reducing driving block 6i is pushed out outwards, the reducing driving block 6i can drive the reducing slide block 6m to slide relative to the reducing guide rail 6k when being pushed out outwards, the reducing slide block 6m can drive the chip removing shaping electrode 6p to extend out through the electrode connecting block 6n, namely, the turning radius of the chip removing shaping electrode 6p is adjusted, so that the chip removing shaping electrode 6p can be adaptive to the inner diameter of the hole, the centering and diameter changing processes are completed, then the gap electric push rod 6l drives the chip removing shaping electrode 6p to be subjected to fine adjustment, adjusting the gap (namely a discharge gap) between the chip removing and shaping electrode 6p and a hole intersection line, driving the chip removing and shaping electrode 6p to rotate by a rotating and shaping motor 6b through a push rod mounting seat 6e and a centering base 6f, then electrifying the chip removing and shaping electrode 6p to generate electric arcs to clear chips on the hole intersection line, then controlling the electrifying size of the chip removing and shaping electrode 6p, and carrying out blunt shaping treatment on a hole opening, thus completing the chip removing and shaping operation of one hole site, then driving a pull rod 6h to push out by a centering electric push rod 6d to enable three swing arms 6g and the chip removing and shaping electrode 6p to return to an initial state, and then carrying out the chip removing and shaping operation of the next hole site of the valve under the driving of a Z-axis displacement device 5 and an X-axis displacement device 4 and the cooperation of a Y-axis displacement device 2 and a rotating clamping device 3.

This embodiment utilizes the oblique guiding hole 6i1 linkage cooperation of pull rod 6h and reducing drive block 6i, make centering gyro wheel 6r on the three swing arm 6g realize the centering with the pore wall contact cooperation drive when removing bits plastic electrode 6p and realize the reducing, thereby the different specifications of aperture is matchd in the self-adaptation, need not to change the instrument of different specifications, improve whole location and the adjustment speed and the work precision that remove bits shaping device 6, the commonality is strong, then remove bits operation and carry out the shaping abate processing to the drill way to the cross line through the arc discharge principle, the efficiency of the bits plastic operation that removes of valve is greatly improved.

The characteristics of high electric arc discharge energy density, high working efficiency and coincidence of the electrode shape and the orifice are utilized, so that the orifice is uniformly blunted and has no burrs, and the circuit is disconnected before the chip removing and shaping electrode 6p is adjusted in place, so that the damage to the inner cavity of the valve is avoided, and the valve is safer and more reliable; meanwhile, the gap electric push rod 6l is used for adjusting the discharge gap and adjusting the current, so that the orifice blunting size and specification can be accurately controlled, and the structure is flexible.

In addition, the present embodiment works by extending from the hole of the valve, and can also be used to observe the operation of the chip removing and shaping device 6.

In this embodiment, the X-axis displacement device 4 is a linear motor motion mechanism, the Z-axis displacement device 5 is installed at the output end of the linear motor motion mechanism through a switching frame, the Z-axis displacement device 5 includes an electric push rod and a lifting frame, the electric push rod is installed at the switching frame, the lifting frame penetrates through the switching frame through a linear bearing, the output end of the electric push rod is fixedly connected with the lifting frame, the scrap removing shaping device 6 is fixed on the lifting frame, and the lifting frame is driven to move through the electric push rod, so that the position adjustment of the scrap removing shaping device 6 in the Z direction is realized.

Based on the above embodiments, as shown in fig. 2, 4 and 5, the chip removing and shaping device 6 further includes a sliding guide frame 6s, the sliding guide frame 6s is movably connected to the centering base 6f, and the reducing driving block 6i is fixedly connected to the sliding guide frame 6 s. So set up for reducing drive block 6i connects on centering base 6f, thereby reducing drive block 6i removes more steadily, ensures except that adjustment accuracy of bits plastic electrode 6 p's radius of gyration.

As shown in fig. 2, 4 and 5, based on the above embodiment, further, the sliding guide frame 6s extends toward the centering base 6f to form two guide rods, and the two guide rods movably penetrate through the centering base 6 f. Through setting up the guide bar for it is stable, reliable when the relative centering base 6f of slip leading truck 6s removes, ensures that reducing drive block 6i removes steadily.

Based on the basis of the above embodiment, furthermore, the other end of the reducing guide rail 6k is provided with a U-shaped notch, the two ends of the U-shaped notch are respectively provided with a sliding groove, and the two ends of the reducing sliding block 6m are respectively connected to the sliding grooves at the two ends of the U-shaped notch in a sliding manner. During operation, the reducing sliding block 6m slides relative to the reducing guide rail 6k through the sliding groove, so that the self-adaptive adjustment of the turning radius of the chip removing and shaping electrode 6p is realized, and the structure is more compact so as to extend into the hole.

On the basis of the embodiment, furthermore, three swing arm 6g of one end one-to-one correspondence of pull rod 6h has three engaging lug, and is three seted up bar hole 6h1 on the engaging lug respectively, and is three the other end one-to-one correspondence of swing arm 6g is articulated with three engaging lug through bar hole 6h 1. When pull rod 6h reciprocated, pull rod 6h promoted swing arm 6g through the engaging lug and uses the pin joint between swing arm 6g and the centering base 6f to swing as the fulcrum to realize the linkage between swing arm 6g and the pull rod 6h, set up bar hole 6h1 on the engaging lug simultaneously and make the other end activity hinge of swing arm 6g on pull rod 6h, reciprocate the difference in height that produces in order to offset pull rod 6 h.

As shown in fig. 6, based on the above embodiment, the Y-axis displacement device 2 further includes a base 2a, a Y-axis driving motor 2B, a screw 2c, a nut 2d, and a sliding plate 2e, the base 2a is fixed on the frame 1, the Y-axis driving motor 2B is fixed on one end of the base 2a, two ends of the screw 2c are respectively rotatably connected to the base 2a, one end of the Y-axis driving motor 2B is in transmission connection with one end of the screw 2c, the sliding plate 2e is slidably connected to the base 2a, and the nut 2d is in threaded connection with the screw 2c and is fixedly connected to the sliding plate 2 e. Specifically, the two sides of the bottom surface of the sliding plate 2e are respectively matched with the sliding block through the linear guide rail and are in sliding connection with the base 2a, so that the sliding plate 2e is stable and reliable in the moving process along the Y direction, during work, the Y-axis driving motor 2B drives the sliding plate 2e to move along the Y direction through the matching of the screw rod 2c and the nut 2d, and the sliding plate 2e drives the rotary clamping device 3 to move, so that the valve clamped on the rotary clamping device 3 is driven to adjust the position along the Y direction.

Based on the above embodiment, as shown in fig. 7, further, the rotating chuck device 3 includes a rotating chuck driving motor 3a and a rotating chuck 3b, the rotating chuck driving motor 3a is fixed on the bottom surface of the sliding plate 2e, and the rotating chuck 3b is rotatably connected to the top surface of the sliding plate 2e and is in transmission connection with the rotating chuck driving motor 3 a. During operation, the valve of the operation of will waiting to remove bits plastic is placed on rotatory chuck 3b, then rotatory chucking driving motor 3a drives rotatory chuck 3b and rotates, make rotatory chuck 3b fix the valve chucking gradually, then move along the Y direction under the drive of Y axle displacement device 2, simultaneously when needing to carry out the operation to the hole site of different positions, rotatory chucking driving motor 3a drives rotatory chuck 3b and drives valve rotary motion equally, adjust the position of valve, make the hole site that needs to remove bits plastic operation lie in and remove bits plastic device 6 and just right, and when rotatory chucking driving motor 3a drives rotatory chuck 3b reverse rotary motion, can loosen the valve, so that unload.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.