CN212794534U

CN212794534U - Positioning and supporting device for workpiece on electromagnetic chuck

Info

Publication number: CN212794534U
Application number: CN202021093282.1U
Authority: CN
Inventors: 吴广田; 郭瑞杰; 梁智斌
Original assignee: Ningbo Anjiesen Precision Machine Manufacturing Co ltd
Current assignee: Ningbo Anjiesen Precision Machine Manufacturing Co ltd
Priority date: 2020-06-13
Filing date: 2020-06-13
Publication date: 2021-03-26
Anticipated expiration: 2030-06-13

Abstract

The utility model relates to a location strutting arrangement of work piece on electromagnet belongs to the technical field of work piece processing equipment, aims at solving the problem that can not fix a position not unidimensional work piece, sets up on the base, be provided with electromagnet on the base, the last equidistant a plurality of T type grooves that are provided with of circumference of electromagnet, it has the supporting shoe that carries out the absorption to the work piece to slide the grafting in the T type groove, be provided with a positioning mechanism who carries out location support to the work piece on the base, positioning mechanism is including setting up the vertical ascending bracing piece on the base, be connected with on the bracing piece and carry out flexible butt piece along the line in bracing piece and the electromagnet centre of a circle. The utility model discloses have the effect of fixing a position not unidimensional work piece.

Description

Positioning and supporting device for workpiece on electromagnetic chuck

Technical Field

The utility model belongs to the technical field of the technique of work piece processing equipment and specifically relates to a location strutting arrangement of work piece on electromagnet is related to.

Background

The electromagnetic chuck is a machine tool accessory product produced by utilizing the principle that an electromagnetic principle is utilized, an internal coil is electrified to generate magnetic force, so that a workpiece contacting the surface of a panel is tightly sucked, and the coil is powered off, so that the magnetic force disappears to realize demagnetization, and the workpiece is taken down.

At present, when workpieces such as bearing rings are finely ground, the workpieces need to be supported and positioned by an electromagnetic chuck, as shown in fig. 1, the electromagnetic chuck 2 is arranged on a base 1, and a driving motor (not shown in the drawing) for driving the electromagnetic chuck 2 to rotate is arranged inside the base 1. A plurality of T-shaped grooves 21 are formed in the end face of the electromagnetic chuck 2, which adsorbs a workpiece, at equal intervals in the circumferential direction, T-shaped blocks 22 are inserted into the T-shaped grooves 21 in a sliding mode, stepped supporting blocks 23 are fixedly connected to the tops of the T-shaped blocks 22, and fasteners which are abutted against the T-shaped grooves 21 penetrate through the stepped faces of the supporting blocks 23.

When the work piece is adsorbed to needs, adjust the position of supporting shoe 23 in T type groove 21 according to the size of work piece size for supporting shoe 23 gathers together or mutual dispersion each other, thereby makes the work piece tightly laminate on the upper surface of supporting shoe 23, thereby realizes adsorbing the work piece. Since the number of workpieces is large and the required accuracy is high when the workpieces are machined, it is necessary to ensure that the workpieces to be machined are attracted to the same position of the electromagnetic chuck 2 each time, and therefore, a pair of positioning units 3 for positioning the workpieces are provided on the base 1. The positioning unit 3 includes a support rod 31 fixed to the base 1 by a fastener, and a positioning rod 32 abutting against a side wall of the workpiece is fixedly connected to a side wall of the support rod 31. When a workpiece needs to be machined, the supporting block 23 is used for adsorbing the workpiece, and the positioning rod 32 is used for supporting and positioning the workpiece, so that the machining precision of the workpiece can be ensured.

The above prior art solutions have the following drawbacks: when the size of the workpiece changes, the positioning rod 32 cannot position the workpieces with different sizes, and the positioning rod 32 and the supporting rod 31 need to be replaced, so that the workpieces with different sizes can be positioned, and the positioning assembly 3 cannot be used for positioning the workpieces with different sizes.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a location strutting arrangement of work piece on electromagnet, it has the effect of fixing a position not unidimensional work piece.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a location strutting arrangement of work piece on electromagnetic chuck, sets up on the base, be provided with electromagnetic chuck on the base, the last equidistant a plurality of T type grooves that are provided with of circumference of electromagnetic chuck, it has the supporting shoe that carries out the absorption to the work piece to slide to peg graft in the T type groove, be provided with a pair of positioning mechanism who carries out location support to the work piece on the base, positioning mechanism is including setting up vertical ascending bracing piece on the base, be connected with on the bracing piece and carry out flexible butt piece along the line in bracing piece and electromagnetic chuck centre of a circle.

Through adopting above-mentioned technical scheme, add man-hour as needs to the work piece, at first the position that is located T type groove according to the size adjustment supporting shoe of work piece, make the supporting shoe mutual dispersion or gather together each other, then place the work piece at the upper surface of supporting shoe and utilize the supporting shoe to adsorb the work piece, utilize positioning mechanism to fix the position of work piece this moment, thereby guarantee that the work piece of same model all places on same position, when the work piece is changed to needs, make the butt joint piece support the location to the work piece through the position of adjusting the butt joint piece, thereby realize the location that can be suitable for not unidimensional work piece.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a supporting rod, including bracing piece, mounting piece, threaded connection has the second screw rod that transversely runs through the mounting piece on the bracing piece, the tip and the butt piece interconnect of second screw rod.

Through adopting above-mentioned technical scheme, when the position of butt joint piece needs to be adjusted, revolve to twist the second screw rod and make the second screw rod move towards the work piece to can drive butt joint piece and move towards the work piece, when butt joint piece and work piece each other between, the butt joint piece can support the position of work piece, thereby guarantees that each work piece is located the same position, and then guarantees the machining precision of work piece.

The present invention may be further configured in a preferred embodiment as: set up the mounting hole that vertically runs through the butt piece on the butt piece, the side that lies in the mounting hole on the butt piece and keep away from the work piece is the butt face, the second screw rod passes the butt face and rotates with the butt face to be connected, the both sides that lie in the butt face on the second screw rod are fixed the cover respectively and are connect the limiting plate, fixedly connected with overlaps with the butt piece each other and lies in the overlap joint piece of butt piece below on the installation piece.

Through adopting above-mentioned technical scheme, when needs support the location to the work piece, rotatory second screw rod makes the second screw rod drive the butt piece and remove towards the work piece, because rotate between second screw rod and the butt piece and be connected, and the both sides difference fixedly connected with limiting plate that lies in the limiting plate on the second screw rod can prevent to take place relative movement between second screw rod and the butt piece, when the second screw rod rotates and drives the butt piece back-and-forth movement, butt piece self can take place to rotate, can support the butt piece through set up the butt piece in butt piece bottom, and then avoid butt piece self to take place to rotate, thereby promote the stability that the butt piece supported the work piece.

The present invention may be further configured in a preferred embodiment as: the end face of the abutting block abutted to the workpiece is an arc-shaped face.

Through adopting above-mentioned technical scheme, utilize the arc to carry out the butt to the work piece and can reduce the area of contact between butt piece and the work piece to reduce frictional force between the two, and then make work piece pivoted more smooth and easy.

The present invention may be further configured in a preferred embodiment as: and a rotating wheel with the same radian and radius as the arc-shaped surface is rotatably connected below the abutting block.

Through adopting above-mentioned technical scheme, can increase a strong point that supports the work piece through setting up the runner to promote the support effect to the work piece.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a fixing device for fixing a screw rod, including the bracing piece, the bracing piece is last to be seted up fore-and-aft first sliding tray, fixedly connected with at least one first screw rod that passes first sliding tray on the installation piece, the one side that lies in the bracing piece and keeps away from the installation piece on the first screw rod is provided with the fastener and fixes first screw rod.

By adopting the technical scheme, when the workpiece is required to be supported, the workpiece with different heights can be supported and positioned by adjusting the position of the first screw rod in the first sliding groove, and the abutting block is ensured to be always abutted against the middle position of the workpiece, so that the supporting effect on the workpiece is improved.

The present invention may be further configured in a preferred embodiment as: the base is fixedly connected with a movable rail for the supporting rod to slide, the supporting rod is fixedly connected with a locking block, and a fastener is arranged between the locking block and the movable rail and longitudinally penetrates through the locking block and the movable rail to fix the locking block and the movable rail.

Through adopting above-mentioned technical scheme, when the size of work piece changes, the position that needs to adjust a pair of positioning mechanism makes accurate supporting the work piece of a pair of positioning mechanism, when the position that needs adjust positioning mechanism, not hard up latch segment and remove the fastener between the track and make the bracing piece can remove along removing the track, when positioning mechanism's position is confirmed, utilize the fastener to lock latch segment and removal track to make accurate supporting the location to the work piece of a pair of positioning mechanism.

The present invention may be further configured in a preferred embodiment as: and scale marks are arranged on one side of the electromagnetic chuck, which is positioned in the T-shaped groove.

Through adopting above-mentioned technical scheme, can remove the supporting shoe and make the supporting shoe accurate below that is located the work piece according to the size of work piece through setting up the scale mark to make the supporting shoe accurate adsorb the work piece.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when a workpiece needs to be machined, firstly, the position of the supporting block in the T-shaped groove is adjusted according to the size of the workpiece, so that the supporting blocks are mutually dispersed or gathered, then the workpiece is placed on the upper surface of the supporting block and is adsorbed by the supporting block, and at the moment, the position of the workpiece is fixed by the positioning mechanism, so that the workpieces of the same type are all placed on the same position;

2. when the workpiece needs to be positioned and supported, the longitudinal height of the mounting block on the supporting rod can be adjusted, and at the moment, the second screw rod and the abutting block can move longitudinally under the driving of the mounting block, so that the abutting block can accurately abut against the middle position of the workpiece, and the supporting effect on the workpiece is further improved;

3. when the size of a workpiece changes, the distance between the pair of positioning mechanisms needs to be adjusted, the support rod can move along the moving track by loosening the fastener between the locking block and the moving track, and when the position of the positioning mechanisms is determined, the locking block and the moving track are locked by the fastener, so that the workpiece is accurately supported and positioned by the pair of positioning mechanisms.

Drawings

Fig. 1 is a schematic structural diagram of the background art.

Fig. 2 is a schematic structural view of the whole of the present embodiment.

Fig. 3 is a schematic structural diagram showing the electromagnetic chuck and the positioning mechanism in this embodiment.

In the figure, 1, a base; 2. an electromagnetic chuck; 21. a T-shaped groove; 22. a T-shaped block; 23. a support block; 24. scale lines; 3. a positioning assembly; 31. a support bar; 311. a first sliding groove; 312. a locking block; 32. positioning a rod; 4. a positioning mechanism; 41. a first screw; 42. mounting blocks; 43. a second screw; 431. a limiting plate; 44. a butting block; 441. mounting holes; 442. an abutting surface; 443. an arc-shaped surface; 45. a lapping block; 46. a rotating wheel; 5. a moving track; 51. a second sliding groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 2 and fig. 3, for the positioning and supporting device for workpiece on electromagnetic chuck of the present invention, the positioning and supporting device is disposed on the base 1, the electromagnetic chuck 2 capable of rotating is disposed on the base 1, and the driving motor (not shown in the figure) for driving the electromagnetic chuck 2 to rotate is disposed inside the base 1. A plurality of T-shaped grooves 21 are formed in the end face of the electromagnetic chuck 2, which adsorbs a workpiece, at equal intervals in the circumferential direction, T-shaped blocks 22 are inserted into the T-shaped grooves 21 in a sliding mode, stepped supporting blocks 23 are fixedly connected to the tops of the T-shaped blocks 22, and fasteners which are abutted against the T-shaped grooves 21 penetrate through the stepped faces of the supporting blocks 23. In order to ensure the accuracy of workpiece processing, each workpiece needs to be placed at the same position for processing, so that a pair of positioning mechanisms 4 needs to be provided on the base 1 to position each workpiece so that each workpiece is placed at the same position.

As shown in fig. 3, the positioning mechanism 4 includes a support rod 31 vertically and upwardly disposed on the base 1, a first sliding groove 311 disposed along a height direction of the support rod 31 is formed on the support rod 31, a pair of first screws 41 is disposed transversely through the first sliding groove 311, an installation block 42 is fixedly connected to one end of each of the pair of first screws 41, and the other end of each of the pair of first screws 41 is locked by a fastener. A second screw 43 penetrating through the mounting block 42 is screwed to a side wall of the mounting block 42 adjacent to the first screw 41, and an abutment block 44 for positioning and supporting the workpiece is rotatably connected to one end of the second screw 43 directed to the center of the electromagnetic chuck 2.

The abutting block 44 is provided with a mounting hole 441 longitudinally penetrating through the abutting block 44, a side surface, away from the center of the electromagnetic chuck 2, of the abutting block 44, located in the mounting hole 441, is an abutting surface 442, the second screw 43 penetrates through the abutting surface 442 and is rotatably connected with the abutting surface 442, limiting plates 431 are fixedly sleeved on two sides, located in the abutting surface 442, of the second screw 43 respectively, and the limiting plates 431 are arranged to prevent relative movement between the second screw 43 and the abutting surface 442 in the axial direction of the second screw 43.

Fixedly connected with is located butt joint piece 44 below and with the mutual overlap joint piece 45 of butt joint piece 44 on installation piece 42, can prevent through setting up overlap joint piece 45 that butt joint piece 44 from taking place to rotate for butt joint piece 44 is stable carries out the location support to the work piece. The end part of the abutting block 44 and the workpiece abutting against each other is provided with the arc-shaped surface 443, and the contact area between the abutting block 44 and the workpiece can be reduced by arranging the arc-shaped surface 443, so that the friction force between the abutting block 44 and the workpiece is reduced, and the workpiece rotates more smoothly.

The rotating wheel 46 is rotatably connected below the abutting block 44, the radian and the radius of the rotating wheel 46 are the same as those of the arc-shaped surface 443, and a supporting point for supporting a workpiece can be added by arranging the rotating wheel 46, so that the supporting effect on the workpiece is improved. When workpieces with different sizes need to be supported, the longitudinal height of the mounting block 42 is adjusted by loosening the nut on the first screw rod 41 according to the height of the workpieces, so that the abutting block 44 abuts at the middle position of the workpieces; then, the second screw 43 is rotated according to the diameter of the workpiece, and the abutting block 44 can be driven to move toward the workpiece by rotating the second screw 43 and abut against the workpiece.

As shown in fig. 2 and 3, since the pair of positioning mechanisms 4 is provided, the distance between the pair of positioning mechanisms 4 needs to be adjusted according to the size of the workpiece, and therefore, a moving rail 5 having the same arc as that of the electromagnetic chuck 2 is fixedly connected to the base 1 on the outer side of the electromagnetic chuck 2. The second sliding groove 51 for the support rod 31 to slide is formed on the moving rail 5, the locking block 312 is fixedly connected to the side wall of the support rod 31, and when the position of the support rod 31 needs to be fixed, a fastener which is locked with the moving rail 5 is longitudinally arranged on the locking block 312 in a penetrating manner. When the size of the workpiece is small, the pair of positioning mechanisms 4 needs to be adjusted to move oppositely along the moving track 5; when the size of the workpiece is large, it is necessary to adjust the pair of positioning mechanisms 4 to move in the direction of separating along the moving rail 5.

One side that is located T type groove 21 on electromagnet 2 is provided with scale mark 24, can remove supporting shoe 23 and make the below that is located the work piece that supporting shoe 23 is accurate through setting up scale mark 24 according to the size of work piece to make supporting shoe 23 accurate adsorb the work piece.

The fastener proposed in this embodiment is a bolt.

The implementation principle of the embodiment is as follows: when a workpiece needs to be supported and positioned, firstly, the position of the supporting block 23 in the T-shaped groove 21 is moved, so that the supporting block 23 can accurately adsorb the workpiece; then, loosening the fastening piece on the locking block 312 to enable the pair of positioning mechanisms 4 to move along the moving track 5, so that the pair of positioning mechanisms 4 are in proper positions to support the workpiece; then, the position of the mounting block 42 in the first sliding groove 311 is adjusted according to the height of the workpiece, so that the abutting block 44 is positioned in the middle position of the workpiece to abut against the workpiece; finally, the second screw 43 is screwed according to the size of the workpiece, so that the second screw 43 drives the abutting block 44 to position and support the workpiece.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a location strutting arrangement of work piece on electromagnetic chuck, sets up on base (1), be provided with electromagnetic chuck (2) on base (1), equally spaced a plurality of T type grooves (21) of being provided with of circumference on electromagnetic chuck (2), it has supporting shoe (23) that carry out absorption, its characterized in that to the work piece to slide to peg graft in T type groove (21): the positioning device is characterized in that a pair of positioning mechanisms (4) for positioning and supporting a workpiece are arranged on the base (1), each positioning mechanism (4) comprises a vertical upward supporting rod (31) arranged on the base (1), and a butting block (44) stretching along a connecting line of the supporting rod (31) and the circle center of the electromagnetic chuck (2) is connected onto the supporting rod (31).

2. A positioning and supporting device for a workpiece on an electromagnetic chuck as claimed in claim 1, wherein: the supporting rod (31) is connected with an installation block (42), the installation block (42) is connected with a second screw rod (43) transversely penetrating through the installation block (42) in a threaded mode, and the end portion of the second screw rod (43) is connected with the abutting block (44) in an interconnecting mode.

3. A positioning and supporting device for a workpiece on an electromagnetic chuck as claimed in claim 2, wherein: set up mounting hole (441) that vertically runs through butt piece (44) on butt piece (44), the side that lies in mounting hole (441) and keep away from the work piece on butt piece (44) is butt face (442), second screw rod (43) pass butt face (442) and rotate with butt face (442) and be connected, the both sides that lie in butt face (442) on second screw rod (43) are fixed the cover respectively and are connect limiting plate (431), overlap joint piece (45) that fixedly connected with and butt piece (44) overlap joint each other and lie in butt piece (44) below on installation piece (42).

4. A positioning and supporting device for a workpiece on an electromagnetic chuck as set forth in any one of claims 1 to 3, wherein: the end face of the abutting block (44) abutting against the workpiece is an arc-shaped face (443).

5. The apparatus of claim 4, wherein the positioning and supporting device comprises: a rotating wheel (46) with the same radian and radius as the arc-shaped surface (443) is rotatably connected below the abutting block (44).

6. A positioning and supporting device for a workpiece on an electromagnetic chuck as claimed in claim 2, wherein: the utility model discloses a fixing device for fixing a screw rod, including bracing piece (31), installation piece (42) are gone up fixedly connected with at least one first screw rod (41) that pass first sliding tray (311), the one side that lies in bracing piece (31) and keeps away from installation piece (42) on first screw rod (41) is provided with the fastener and fixes first screw rod (41).

7. The apparatus of claim 6, wherein the positioning and supporting device comprises: fixedly connected with supplies bracing piece (31) to carry out gliding removal track (5) on base (1), fixedly connected with latch segment (312) on bracing piece (31), vertically pass latch segment (312) and remove track (5) and be provided with the fastener and fix the two.

8. A positioning and supporting device for a workpiece on an electromagnetic chuck as claimed in claim 1, wherein: and scale marks (24) are arranged on one side of the electromagnetic chuck (2) positioned in the T-shaped groove (21).