CN114800001A

CN114800001A - High efficiency digit control machine tool auxiliary machinery people

Info

Publication number: CN114800001A
Application number: CN202210645994.7A
Authority: CN
Inventors: 王跃; 王海平; 王鸿翔
Original assignee: Jiangsu Vocational College of Electronics and Information
Current assignee: Dongguan Jinfan Precision Machinery Equipment Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-07-29
Anticipated expiration: 2042-06-08
Also published as: CN114800001B

Abstract

The invention discloses a high-efficiency numerically-controlled machine tool auxiliary robot, which relates to the technical field of robot equipment and comprises a clamping chuck, wherein a magnetic frame is lapped in a central hole of the clamping chuck, a leather plug block is fixedly arranged at one end, far away from the clamping chuck, of the magnetic frame, a negative pressure block capable of forming negative pressure with the leather plug block is slidably arranged on the outer surface of the magnetic frame, a retarding cavity is fixedly arranged on the side surface of the negative pressure block, hydraulic oil is filled in the retarding cavity, and a tension spring is wound around the outer side of the magnetic frame. The workpiece can be quickly taken down from the three-jaw chuck through the matching of the magnetic firing pin and the induction coil; through the matching of the positioning magnetic column, the electrode plate, the magnetic powder and the contact plate, the positioning error can be judged through the difference of resistance values, so that the mechanical arm can be adjusted in time; through the structure setting in burden briquetting, leather stopper piece and slow speed chamber, reduce the impact force that the work piece caused this device to the fast resistance of leather stopper through liquid to increase of service life.

Description

High efficiency digit control machine tool auxiliary machinery people

Technical Field

The invention relates to the technical field of robot equipment, in particular to a high-efficiency numerically-controlled machine tool auxiliary robot.

Background

The numerical control machine tool is a digital control machine tool for short, and is an automatic machine tool provided with a program control system. The control system is capable of logically processing and decoding a program defined by a control code or other symbolic instructions, represented by coded numbers, which are input to the numerical control device via the information carrier. The numerical control machine tool sends various control signals through operation processing to control the action of the machine tool, parts are automatically machined according to the shape and the size required by a drawing, but if a workpiece is quickly taken off from a three-jaw disc, impact force is generated due to high speed, the impact force can damage a clamping device and can affect the outline size of the machined workpiece, in the prior art, Chinese patent with application number of CN201620077252.9 discloses a high-efficiency auxiliary robot which comprises a shaft sleeve, a transverse telescopic shaft, a rotator, a longitudinal telescopic shaft, an inductor, a mechanical claw, a machine body, a driver, a fault alarm, a central processor, a regulating and controlling box, an operation panel, a circuit box, a turntable and a fixed base, wherein the shaft sleeve is connected with the transverse telescopic shaft, the rotator is arranged at the left side position of the transverse telescopic shaft, and the longitudinal telescopic shaft is fixed below the rotator, the mechanical claw is internally provided with an inductor, the right side of the shaft sleeve is fixed with a driver, the outer side of the machine body is provided with a fault alarm, the machine body is provided with a turntable, and a fixed base is arranged below the turntable.

Disclosure of Invention

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high efficiency digit control machine tool auxiliary machinery people, gets the chuck including the clamp, the overlap joint has the magnetic force frame in the centre bore of clamp chuck, and the magnetic force frame is kept away from the one end fixed mounting who gets the chuck and is got the leather chock, and the surface slidable mounting of magnetic force frame has the negative pressure piece that can form the negative pressure with the leather chock, and the side of negative pressure piece is seted up flutedly, fixed mounting has the chamber of slowing down on the negative pressure piece, and hydraulic oil is equipped with in the chamber of slowing down, and the magnetic force frame outside is surrounded there is the extension spring.

Preferably, a sealing ring is fixedly mounted on the opposite surface of the leather plug block and the negative pressure block, and an electromagnet is fixedly mounted on the retarding cavity.

Preferably, the side of the leather chock is lapped with an auxiliary rod, and the centers of the retarding cavity and the side of the electromagnet are provided with through holes matched with the auxiliary rod in diameter.

Preferably, both ends of the tension spring are respectively and fixedly connected with the negative pressure block and the magnetic frame and used for driving the magnetic frame to move along the axis of the magnetic frame.

Preferably, press from both sides and get chuck on slidable mounting have a three stripper bar that is used for the centre gripping work piece, it is three the stripper bar is kept away from to press from both sides the equal fixed mounting in one end of getting the chuck axle center and is had the extrusion piece, and the other end movable mounting of stripper bar has middle connecting rod.

Preferably, the three intermediate connecting rods are movably mounted together through a turbine linkage ring, the turbine linkage ring is rotatably mounted on the clamping chuck, a worm is mounted on the outer surface of the turbine linkage ring through threads, and the worm is rotatably mounted on the clamping chuck through a support.

Preferably, an ejection assembly is arranged on one side of the workpiece, which is far away from the support barrel, the ejection assembly comprises a striker support barrel fixedly installed in the spindle, an induction coil is wound around the striker support barrel, and a magnetic striker used for pushing the workpiece to move is arranged in the middle of the induction coil.

Preferably, the clamping chuck is fixedly provided with an enclosing frame, the enclosing frame is fixedly provided with a supporting barrel, the side surface of the enclosing frame is provided with a through hole, the inner wall of the through hole is fixedly provided with a plate electrode, magnetic powder and a contact plate, and a positioning magnetic column fixedly connected with the side plate is arranged at a position corresponding to the axis of the through hole.

Compared with the prior art, the invention has the following beneficial effects: (1) the workpiece can be quickly taken down from the three-jaw chuck through the matching of the magnetic striker and the induction coil; (2) according to the invention, through the matching of the positioning magnetic column, the electrode plate, the magnetic powder and the contact plate, the positioning error can be judged through the difference of resistance values, so that the mechanical arm can be adjusted in time; (3) according to the invention, through the structural arrangement of the negative pressure block, the leather plug block and the retarding cavity, the impact force of a workpiece on the device is reduced through the resistance of liquid to the leather plug block, so that the service life is prolonged.

Drawings

FIG. 1 is a schematic diagram I of the structure of the present invention.

Fig. 2 is a schematic view of the structure of the magnetic striker according to the present invention.

FIG. 3 is a schematic diagram II of the present invention.

FIG. 4 is a schematic diagram III of the present invention.

FIG. 5 is a diagram showing the positional relationship between the positioning magnetic pillar and the electrode plate according to the present invention.

Fig. 6 is a cut-away view of a contact plate of the present invention.

FIG. 7 is a schematic diagram IV of the structure of the present invention.

FIG. 8 is a schematic view of the structure at A in FIG. 7 according to the present invention.

Fig. 9 is a schematic view of the workpiece entering the clamping chuck according to the present invention.

FIG. 10 is a schematic view of the negative pressure block and the leather plug block of the present invention.

In the figure: 101-a machine tool; 102-a robot arm; 103-side panel; 104-a support tub; 105-trimming the electric cylinder; 106-three jaw chuck; 107-connector; 108-a magnetic striker; 109-an induction coil; 110-reset spring; 111-positioning magnetic columns; 112-a workpiece; 113-striker support cartridge; 114-supporting the bucket inner frame; 115-a perpendicularity sensor; 116-a surrounding frame; 117-gripping chuck; 118-a clamping motor; 119-a worm; 120-turbine link ring; 121-intermediate link; 122-a squeeze lever; 123-extrusion sheet; 124-electrode plate; 125-magnetic powder; 126-contact plate; 127-magnetic frame; 128-tension spring; 129-negative pressure block; 130-leather plug; 131-an auxiliary rod; 132-an electromagnet; 133-retarder cavity.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Referring to fig. 1, 9 and 10, the present invention provides a technical solution: a high-efficiency numerically-controlled machine tool auxiliary robot is used for assisting machining of a machine tool 101, wherein a spindle box is arranged on the machine tool 101, a spindle is arranged inside the spindle box, a three-jaw chuck 106 is fixedly arranged on the spindle through a connector 107, a driving motor is symmetrically arranged inside the three-jaw chuck 106 and drives three jaws of the three-jaw chuck 106 to fix a workpiece 112 on the three-jaw chuck 106, a clamping chuck 117 is arranged on the side of the three-jaw chuck 106, a magnetic frame 127 is lapped in a central hole of the clamping chuck 117, one end, far away from the clamping chuck 117, of the magnetic frame 127 is fixedly provided with a leather plug block 130, a negative pressure block 129 capable of forming negative pressure with the leather plug block 130 is slidably arranged on the outer surface of the magnetic frame 127, a groove is formed in the side of the negative pressure block 129, a retarding cavity 133 is fixedly arranged on the negative pressure block 129, hydraulic oil is filled in the retarding cavity 133, and a tension spring 128 is encircled outside the magnetic frame 127, when the leather plug block 130 touches and extrudes the negative pressure block 129, the leather plug block 130 can compress the space inside the groove formed in the side surface of the negative pressure block 129, so that negative pressure is formed to overcome the tension of the tension spring 128 to keep the negative pressure balanced, and through the structural arrangement of the negative pressure block 129, the leather plug block 130 and the retarding cavity 133, the impact force of the workpiece 112 on the device is reduced through the resistance of liquid to the leather plug block 130, so that the service life is prolonged.

As shown in fig. 7 and 8, three extrusion rods 122 for clamping the workpiece 112 are slidably mounted on the clamping chuck 117, extrusion pieces 123 are fixedly mounted at one ends of the three extrusion rods 122 far away from the axial center of the clamping chuck 117, an intermediate link 121 is movably mounted at the other end of the extrusion rod 122, the three intermediate links 121 are movably mounted together through a turbine linkage ring 120, and a worm wheel link ring 120 is rotatably mounted on the clamping chuck 117, a worm 119 is threadedly mounted on the outer surface of the worm wheel link ring 120, the worm 119 is rotatably mounted on the clamping chuck 117 via a bracket, the worm 119 is driven by a clamping motor 118, the clamping motor 118 is also fixedly mounted on the bracket, the worm 119 is controlled to rotate to drive the turbine linkage ring 120 to rotate, and the three intermediate connecting rods 121 respectively drive the extrusion rods 122 and the extrusion sheets 123 to extrude the fixed workpiece 112 when the turbine linkage ring 120 rotates.

As shown in fig. 2, the side of the workpiece 112 away from the support barrel 104 is provided with an ejection assembly, the ejection assembly includes a striker support barrel 113 fixedly installed in the spindle, an induction coil 109 is surrounded in the striker support barrel 113, a magnetic striker 108 for pushing the workpiece 112 to move is provided in the middle of the induction coil 109, it should be noted that the position of the spindle axis for driving the three-jaw chuck 106 to rotate is hollow, the induction coil 109 is fixedly installed in a position coaxial with the spindle, one end of the magnetic striker 108 is provided with a step surface, and a return spring 110 is fixedly installed between the step surface and the inner wall of the striker support barrel 113 for returning the magnetic striker 108, when in use, after the workpiece 112 is machined, the workpiece 112 is separated from the three-jaw chuck 106 by controlling a driving motor installed inside the three-jaw chuck 106, at this time, the workpiece 112 is still on the three-jaw chuck 106, here, the jaws of the three-jaw chuck 106 are no longer holding the workpiece 112, and the induction coil 109 is energized, so that the induction coil 109 drives the magnetic striker 108 to move horizontally toward the workpiece 112, thereby separating the workpiece 112 from the three-jaw chuck 106, and the workpiece 112 can be quickly removed from the three-jaw chuck 106 by the cooperation of the magnetic striker 108 and the induction coil 109.

As shown in fig. 1, 2, 8, and 10, when in use, the support barrel 104 is fixed at the end of the robot arm 102 by two fine tuning electric cylinders 105 vertically and horizontally connected in series, where it should be noted that the fine tuning electric cylinder 105 fixedly installed at the end of the robot arm 102 is vertically installed, and another fine tuning electric cylinder 105 horizontally installed is fixedly installed at the end of the telescopic rod of the fine tuning electric cylinder 105, and the telescopic rod of the fine tuning electric cylinder 105 is fixedly connected with the support barrel 104, the axial position of the support barrel 104 is fixedly installed by the support barrel inner frame 114 and the slow speed chamber 133, when the workpiece 112 abuts against the magnetic frame 127, the magnetic frame 127 will move backwards, at this time, because the workpiece 112 is collided by the magnetic striker 108 and has an initial speed, the kinetic energy on the workpiece 112 will be transmitted to the magnetic frame 127, at this time, the force received by the magnetic frame 127 is greater than the negative pressure formed by the leather plug block 130 and the negative pressure block 129, at this time, the tension spring 128 drives the magnetic frame 127 to move towards the side far away from the clamping chuck 117, the magnetic frame 127 sucks the workpiece 112 to move together, at this time, the tension spring 128 drives the magnetic frame 127 to move at a speed, so that hydraulic oil arranged in the retarding cavity 133 matches with the side surface of the upper leather plug block 130 to retard the moving speed of the magnetic frame 127, so that the impact force of the magnetic frame 127 on the negative pressure block 129 is reduced, when the magnetic frame is completely moved to the right position, the workpiece 112 is fixed through the pressing rod 122, when the magnetic frame is reset, the electromagnet 132 is started to generate magnetism, the magnetic frame 127 is repelled to the initial position, wherein the initial position is a position where the leather plug block 130 and the negative pressure block 129 can form negative pressure, and the auxiliary rod 131 is arranged, and the auxiliary rod 131 has the function of manually pushing the leather plug block 130 to move when the electromagnet 132 cannot work.

As shown in fig. 3, 5 and 6, an enclosure frame 116 is fixedly mounted on a clamping chuck 117, a support barrel 104 is fixedly mounted on the enclosure frame 116, a through hole is formed in the side surface of the enclosure frame 116, an electrode plate 124, a magnetic powder 125 and a contact plate 126 are fixedly mounted on the inner wall of the through hole, and a positioning magnetic column 111 fixedly connected with a side plate 103 is arranged at a position corresponding to the axis of the through hole, wherein the side plate 103 is fixedly mounted on a spindle box, after a workpiece 112 is machined, the support barrel 104 is moved to a position coaxial with the workpiece 112 by a mechanical arm 102, and then the positioning magnetic column 111 is aligned with the electrode plate 124, wherein in practice, the two axes of the positioning magnetic column 111 and the electrode plate 124 do not coincide, a distance occurs, at this time, a magnetic induction line of the positioning magnetic column 111 passes through the magnetic powder 125, the magnetic powder 125 moves toward an offset side, and at this time, the offset magnetic powder 125 connects the electrode plate 124 with a contact point on the contact plate 126, and the density of the contact points gradually increases from the position of the circle center to the outside, here, the number of the contact point plate 126 subareas needs to be selected according to the precision required by the user, so that the number and the precision are in positive correlation, when the resistance value of each area is equal, the axis coincidence of the electrode plate 124 and the positioning magnetic column 111 is illustrated, when one resistance value is smaller than the resistance value of other areas, the magnetic powder 125 is gathered on the contact point plate 126 of the low-density area, through the judgment of the resistance values of other areas, the smallest area is selected, the extension direction of the angular bisector is the direction of the positioning magnetic column 111 deviating from the electrode plate 124, through the resistance value difference of each area, the deviation size can be judged, here, it needs to be explained, the gradient degree of the density of the contact points can influence the precision of judging the deviation size, and the same effect can be known that when the deviation exists in the vertical direction, the magnetic induction line of the positioning magnetic column 111 can also play the same effect, then, fine adjustment is performed through the two fine adjustment electric cylinders 105, and meanwhile, it is required to ensure that the side surface of the surrounding frame 116 is perpendicular to the horizontal plane, so that a verticality sensor 115 is fixedly mounted on the surrounding frame 116 and used for matching with the mechanical arm 102 to keep the surrounding frame 116 perpendicular, and through matching of the positioning magnetic column 111, the electrode plate 124, the magnetic powder 125 and the contact plate 126, positioning errors can be judged through different resistance values, so that the mechanical arm 102 can make adjustment in time.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high efficiency digit control machine tool auxiliary machinery people which characterized in that: including pressing from both sides chuck (117), it has magnetic frame (127) to press from both sides in the centre bore of getting chuck (117), and magnetic frame (127) are kept away from the one end fixed mounting who gets chuck (117) and are got leather chock (130), and the surface slidable mounting of magnetic frame (127) has negative pressure piece (129) that can form the negative pressure with leather chock (130), and the side of negative pressure piece (129) is seted up flutedly, fixed mounting has speed reducing chamber (133) on negative pressure piece (129), is equipped with hydraulic oil in speed reducing chamber (133), and magnetic frame (127) outside is encircleed there is extension spring (128).

2. The high-efficiency numerically-controlled machine tool auxiliary robot according to claim 1, wherein: the leather plug block (130) and the negative pressure block (129) are fixedly provided with sealing rings on opposite surfaces, and the retarding cavity (133) is fixedly provided with an electromagnet (132).

3. The high-efficiency numerically-controlled machine tool auxiliary robot according to claim 2, wherein: an auxiliary rod (131) is lapped on the side surface of the leather plug block (130), and through holes matched with the auxiliary rod (131) in diameter are formed in the centers of the retarding cavity (133) and the side surface of the electromagnet (132).

4. A high-efficiency numerically-controlled machine tool auxiliary robot according to claim 3, wherein: two ends of the tension spring (128) are respectively fixedly connected with the negative pressure block (129) and the magnetic frame (127) and used for driving the magnetic frame (127) to move along the axis of the tension spring.

5. The high-efficiency numerically-controlled machine tool auxiliary robot according to claim 4, wherein: press from both sides and to have three extrusion stem (122) that are used for centre gripping work piece (112) on the chuck (117), it is three extrusion stem (122) keep away from the equal fixed mounting in one end of pressing from both sides chuck (117) axle center and have extrusion piece (123), the other end movable mounting of extrusion stem (122) has middle connecting rod (121).

6. The high-efficiency numerically-controlled machine tool auxiliary robot according to claim 5, wherein: the three intermediate connecting rods (121) are movably mounted together through a turbine linkage ring (120), the turbine linkage ring (120) is rotatably mounted on the clamping chuck (117), a worm (119) is mounted on the outer surface of the turbine linkage ring (120) in a threaded mode, and the worm (119) is rotatably mounted on the clamping chuck (117) through a support.

7. The high-efficiency numerically-controlled machine tool auxiliary robot according to claim 1, wherein: an ejection assembly is arranged on one side, away from the support barrel (104), of the workpiece (112), the ejection assembly comprises a firing pin support barrel (113) fixedly mounted in the spindle, an induction coil (109) is wound in the firing pin support barrel (113), and a magnetic firing pin (108) used for pushing the workpiece (112) to move is arranged in the middle of the induction coil (109).

8. The high-efficiency numerically-controlled machine tool auxiliary robot according to claim 1, wherein: the clamping chuck is characterized in that an enclosing frame (116) is fixedly mounted on the clamping chuck (117), a supporting barrel (104) is fixedly mounted on the enclosing frame (116), a through hole is formed in the side face of the enclosing frame (116), an electrode plate (124), magnetic powder (125) and a contact plate (126) are fixedly mounted on the inner wall of the through hole, and a positioning magnetic column (111) fixedly connected with the side panel (103) is arranged at a position corresponding to the axis of the through hole.