CN211439064U

CN211439064U - Machining center clamping device

Info

Publication number: CN211439064U
Application number: CN201922377160.9U
Authority: CN
Inventors: 傅叶成
Original assignee: Zhejiang Yiye Machinery Co ltd
Current assignee: Zhejiang Yiye Machinery Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-08
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a clamping device of a processing center, which comprises a clamping table, wherein two sliding grooves are arranged on two sides of the clamping table, four sliding blocks are arranged on two sides of the clamping table, two jacks are arranged on one side of each sliding block, an inserting rod is respectively arranged in the two jacks, a pushing block is fixedly arranged at one end of the inserting rod, a first threaded hole is arranged on the upper end surface of each sliding block, a nut is arranged on the upper end surface of each sliding block, rotary grooves are arranged in the four sliding blocks, rotary sheets are fixedly arranged on the lower end surface of the nut, a threaded rod is arranged in the nut, a fixed block is arranged above the threaded rod, the structure of the utility model is reasonable, the sliding blocks are enabled to slide to four corners of workpieces with different sizes through the sliding blocks, the side walls of the workpieces are fixed through the inserting rods, the heights of the threaded rods are adjusted through the rotating nuts, finally the fixed blocks are fixed on the threaded, the clamping device has the advantage of clamping workpieces with different sizes.

Description

Machining center clamping device

Technical Field

The utility model relates to a clamping device field, in particular to machining center clamping device.

Background

The machining center, named cnc for short, is one high efficiency automatic machine tool comprising mechanical equipment and numerically controlled system for machining complicated workpiece. The processing center is called a computer gong. The machining center is provided with a tool magazine, has an automatic tool changing function, and is a numerical control machine tool for performing multi-process machining after a workpiece is clamped once. The machining center is a highly electromechanical integrated product, after a workpiece is clamped, the numerical control system can control the machine tool to automatically select and replace a cutter, automatically set a tool, automatically change the rotating speed of a main shaft, feed amount and the like according to different procedures, and can continuously complete various procedures such as drilling, boring, milling, reaming, tapping and the like, so that the time of the workpiece clamping, the time of auxiliary procedures such as measurement, machine tool adjustment and the like is greatly reduced, and the numerical control machine tool has a good economic effect on parts which are relatively complex in machining shape, high in precision requirement and frequent in variety replacement.

Before a machining center processes a workpiece, the workpiece needs to be fixed in the machining center, so that a clamping device is needed, and most of the existing clamping devices of the machining center can only clamp the workpiece with a single size. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a machining center clamping device has the advantage of carrying out the centre gripping to not unidimensional work piece.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a machining center clamping device comprises a clamping table, wherein two sliding grooves are symmetrically formed in two sides of the clamping table, four sliding blocks are symmetrically arranged in two sides of the clamping table, one ends of the four sliding blocks are located in the sliding grooves and are in sliding fit with the sliding grooves, two insertion holes are symmetrically formed in one sides of the four sliding blocks, insertion rods penetrate through the two insertion holes, the insertion rods are T-shaped and are in sliding fit with the insertion holes, a pushing block is fixedly arranged at one end of each insertion rod, threaded holes I are formed in the upper end faces of the four sliding blocks, nuts are arranged on the upper end faces of the four sliding blocks, rotary grooves are formed in the four sliding blocks, rotary pieces are fixedly arranged on the lower end faces of the nuts and are T-shaped and are located in the rotary grooves and are in rotating fit with the rotary grooves, threaded rods penetrate through the nuts, the rotating sheet is arranged in a penetrating mode of the threaded rod and matched with the first threaded hole, the fixed block is arranged above the threaded rod, a through hole is formed in the top of the fixed block, a second threaded hole is formed in the top of the threaded rod, a screw penetrates through the through hole, and the screw is matched with the second threaded hole.

Adopt above-mentioned technical scheme, the user removes the sliding block, the sliding block can be in the spout horizontal slip, thereby make the sliding block can slide to four corners of not unidimensional work piece, later pull the inserted bar, the inserted bar can slide in the jack, thereby fix the lateral wall of work piece, user's antiport nut, nut antiport drives the threaded rod rebound, when the up end of threaded rod is neat with the up end of work piece, the stall nut, support the one end of fixed block respectively on four corners of work piece up end, place the other end of fixed block on the threaded rod again, make through-hole and two laminatings of screw hole, later penetrate the screw in the through-hole, forward twist the screw again, twist the screw in two screw holes, thereby fix the fixed block on the threaded rod, finally accomplish the fixed to the work piece.

Preferably, a plurality of all set firmly the ring piece on the outer wall of inserted bar, just the ring piece is located the jack, and is a plurality of the spring is all worn to be equipped with by the surface of inserted bar, the one end of spring and the one end fixed connection that the ejector pad was kept away from to the ring piece, the bottom fixed connection that the ejector pad was kept away from to the other end of spring and jack.

By adopting the technical scheme, a user pulls the plurality of inserted bars in the direction far away from the clamping table, so that the ring block moves in the direction far away from the clamping table, and then the spring receives pressurization between the bottom of the pushing block far away from one end of the pushing block and the bottom of the inserting hole far away from the pushing block, so that the spring generates elasticity. Then place the work piece on the centre gripping platform, loosen the inserted bar, the elasticity of spring can push up the movable ring piece and move toward the direction of being close to the work piece, and the one end of inserted bar has set firmly the ejector pad, and the ring piece can drive the inserted bar toward the direction of being close to the work piece to remove toward the direction of being close to the work piece to make the ejector pad tentatively support the side at the work piece.

Preferably, the outer wall of the plurality of ring blocks is fixedly provided with two guide blocks, the jack is internally provided with two guide grooves, and the guide blocks are positioned in the guide grooves and are in sliding fit with the guide grooves.

By adopting the technical scheme, in the moving process of the ring block, the ring block drives the guide block to slide in the guide groove, so that the inserted bar cannot rotate relatively in the moving process.

Preferably, a plurality of annular grooves are formed in the surfaces of the inserting rods, and the annular grooves are located between one end, away from the push block, of the inserting rod and one end, away from the push block, of the annular block.

By adopting the technical scheme, the ring groove enables the clamping block to be clamped in the ring groove, and the workpiece is guaranteed to vibrate during machining and not to drive the inserted rod to slide.

As preferred, four the equal symmetry in one side of sliding block has set firmly two squares, two all be equipped with the draw-in groove in the square, one side of draw-in groove all is equipped with the fixture block, the one end of fixture block is located the draw-in groove, and with draw-in groove sliding fit, the bottom of draw-in groove has set firmly reset spring, reset spring's the other end and the one end fixed connection of fixture block.

By adopting the technical scheme, the inserted bar is jacked by a user, so that the pushing block which is initially propped against the side surface of the workpiece is propped against the workpiece tightly, then the clamping block is loosened, the elastic force of the spring can prop the clamping block back to the initial state, and the end, far away from the square block, of the clamping block is clamped in the annular groove, so that the workpiece is guaranteed to vibrate during machining and cannot drive the inserted bar to slide.

Preferably, a plurality of one side of sliding block all is symmetrical is equipped with two recesses, two one side of fixture block all sets firmly the draw runner, the draw runner is located the recess, and with groove sliding fit.

By adopting the technical scheme, the two grooves can enable the sliding strip to vertically slide when sliding, and the clamping block can be prevented from being separated from the square.

Preferably, the surfaces of the push blocks are fixedly provided with anti-abrasion pads, the surfaces of the anti-abrasion pads are rough, and the anti-abrasion pads are elastic.

By adopting the technical scheme, the friction force between the push block and the workpiece can be increased by the anti-abrasion pad, so that the workpiece can be more stably fixed by the push block, and the workpiece surface can be prevented from being deformed by the push block and the workpiece.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a cross-sectional view of the embodiment;

FIG. 3 is another cross-sectional view of the embodiment;

FIG. 4 is a partial enlarged view of the area B in FIG. 3;

FIG. 5 is an enlarged view of a portion of the area C in FIG. 2;

fig. 6 is a partially enlarged view of the area a in fig. 3.

Reference numerals: 1. a clamping table; 2. a chute; 3. a slider; 4. inserting a rod; 5. a push block; 6. a nut; 7. rotating the sheet; 8. a threaded rod; 9. a fixed block; 10. a screw; 11. a ring block; 12. a spring; 13. a guide block; 14. a ring groove; 15. a square block; 16. a clamping block; 17. a return spring; 18. a slide bar; 19. an anti-wear pad.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

As shown in fig. 1 to 6, a machining center clamping device comprises a clamping table 1, two sliding grooves 2 are symmetrically arranged on two sides of the clamping table 1, four sliding blocks 3 are symmetrically arranged on two sides of the clamping table 1, one ends of the four sliding blocks 3 are located in the sliding grooves 2, a user moves the sliding blocks 3, the sliding blocks 3 can slide left and right in the sliding grooves 2, and therefore the sliding blocks 3 can slide to four corners of workpieces with different sizes.

Before the centre gripping work piece, the user removes four sliding blocks 3 earlier according to the size of work piece and slides to four corners of work piece, has seted up two jacks of the equal symmetry in one side of four sliding blocks 3, all wears to be equipped with inserted bar 4 in two jacks, and inserted bar 4 is the T style of calligraphy, and the user pulls out inserted bar 4, and inserted bar 4 can slide in the jack.

All set firmly ring piece 11 on the outer wall of a plurality of inserted bars 4, and ring piece 11 is located the jack, and spring 12 is all worn to be equipped with by the surface of inserted bar 4, and the one end fixed connection of ejector pad 5 is kept away from to spring 12's one end and ring piece 11, and the bottom fixed connection of ejector pad 5 is kept away from to spring 12's the other end and jack. The user pulls the plurality of inserted bars 4 towards the direction far away from the clamping table 1, so that the ring block 11 moves towards the direction far away from the clamping table 1, and then the spring 12 is pressurized between one end of the ring block 11 far away from the push block 5 and the bottom of the jack far away from the push block 5, so that the spring 12 generates elasticity. Then, a workpiece is placed on the clamping table 1, the inserting rod 4 is loosened, the elastic force of the spring 12 can push the movable ring block 11 to move towards the direction close to the workpiece, the pushing block 5 is fixedly arranged at one end of the inserting rod 4, the ring block 11 moves towards the direction close to the workpiece and can drive the inserting rod 4 to move towards the direction close to the workpiece, and therefore the pushing block 5 is initially abutted to the side face of the workpiece.

The surface of the push block 5 is fixedly provided with an anti-abrasion pad 19, the surface of the anti-abrasion pad 19 is rough, the anti-abrasion pad 19 is elastic, and the anti-abrasion pad 19 can increase the friction force between the push block 5 and a workpiece, so that the push block 5 can fix the workpiece more stably, and the push block 5 can be prevented from being extruded with the workpiece to deform the surface of the workpiece.

All set firmly two guide blocks 13 on the outer wall of ring piece 11, all be equipped with two guide slots in the jack, a plurality of guide blocks 13 all are located the guide slot, and at the in-process that ring piece 11 removed, ring piece 11 drives guide block 13 and slides in the guide slot to make inserted bar 4 can not rotate relatively at the in-process that removes.

The equal symmetry in one side of four sliding blocks 3 has set firmly two squares 15, all is equipped with the draw-in groove in two squares 15, and one side of draw-in groove all is equipped with fixture block 16, and the one end of fixture block 16 is located the draw-in groove, and the user removes the card soon, and fixture block 16 can slide in the draw-in groove, and the bottom of draw-in groove has set firmly reset spring 17, and reset spring 17's the other end and fixture block 16's one end fixed connection, fixture block 16 slides and makes reset spring 17 receive the extrusion, makes reset spring 17 produce elasticity. A plurality of annular grooves 14 have all been seted up on the surface of a plurality of inserted bar 4, a plurality of annular grooves 14 all are located inserted bar 4 and keep away from between the one end of ejector pad 5 and the one end that ejector pad 5 was kept away from to ring block 11, the user pushes up inserted bar 4, make tentatively support ejector pad 5 and the work piece of the side at the work piece and support tightly, later loosen fixture block 16, reset spring 17's elasticity can push back initial condition with fixture block 16, thereby make fixture block 16 keep away from 15 one end card of square in annular groove 14, guarantee that the work piece can not drive inserted bar 4 and slide adding man-hour vibrations.

One side of the sliding block 3 is symmetrically provided with two grooves, one side of each of the two clamping blocks 16 is fixedly provided with a sliding strip 18, the sliding strips 18 are located in the grooves, the two grooves enable the sliding strips 18 to vertically slide when sliding, and the clamping blocks 16 can be prevented from being separated from the square blocks 15.

All be equipped with nut 6 on the up end of four sliding blocks 3, all be equipped with the turn trough in four sliding blocks 3, set firmly rotor 7 on the lower terminal surface of nut 6, rotor 7 is the T style of calligraphy, and rotor 7 is located the turn trough, and the user rotates nut 6, and nut 6 rotates and can drive rotor 7 at the turn trough internal rotation. All set up screw hole one on the up end of four sliding blocks 3, wear to be equipped with threaded rod 8 in the nut 6, and threaded rod 8 wears to establish rotor 7, and cooperatees with screw hole one, and nut 6 can drive threaded rod 8 relative rotation to make threaded rod 8 rotate from top to bottom in screw hole one, user's antiport nut 6, nut 6 antiport drive threaded rod 8 rebound, when the up end of threaded rod 8 and the up end of work piece level at ordinary times, stall nut 6.

The top of threaded rod 8 is equipped with fixed block 9, and the through-hole has been seted up at the top of fixed block 9, and the top of threaded rod 8 is equipped with screw hole two, and the user supports the one end of fixed block 9 respectively on four corners of work piece up end, places the other end of fixed block 9 on threaded rod 8 again, makes through-hole and the laminating of screw hole two. The screw 10 penetrates through the through hole, the screw 10 is matched with the threaded hole, the screw 10 penetrates into the through hole, the screw 10 is screwed in the forward direction, the screw 10 is screwed into the threaded hole II, the fixing block 9 is fixed on the threaded rod 8, and finally the workpiece is fixed.

Claims

1. A clamping device of a machining center comprises a clamping table (1) and is characterized in that two sliding grooves (2) are symmetrically formed in two sides of the clamping table (1), four sliding blocks (3) are symmetrically arranged in two sides of the clamping table (1), one ends of the four sliding blocks (3) are located in the sliding grooves (2) and are in sliding fit with the sliding grooves (2), two inserting holes are symmetrically formed in one sides of the four sliding blocks (3), inserting rods (4) penetrate through the two inserting holes, the inserting rods (4) are T-shaped, the inserting rods (4) are in sliding fit with the inserting holes, pushing blocks (5) are fixedly arranged at one ends of the inserting rods (4), threaded holes I are formed in the upper end faces of the four sliding blocks (3), nuts (6) are arranged on the upper end faces of the four sliding blocks (3), rotating grooves are formed in the four sliding blocks (3), the improved nut runner is characterized in that a rotary piece (7) is fixedly arranged on the lower end face of the nut (6), the rotary piece (7) is T-shaped, the rotary piece (7) is located in a rotary groove and is in running fit with the rotary groove, a threaded rod (8) is arranged in the nut (6) in a penetrating mode, the rotary piece (7) is arranged in the threaded rod (8) in a penetrating mode and is matched with a threaded hole I, a fixed block (9) is arranged above the threaded rod (8), a through hole is formed in the top of the fixed block (9), a threaded hole II is formed in the top of the threaded rod (8), a screw (10) is arranged in the through hole in a penetrating mode, and the screw (10) is matched with.

2. The clamping device of the machining center according to claim 1, wherein a ring block (11) is fixedly arranged on the outer wall of each of the plurality of the insert rods (4), the ring block (11) is located in the jack, springs (12) are arranged on the outer surfaces of the plurality of the insert rods (4) in a penetrating manner, one ends of the springs (12) are fixedly connected with one ends, far away from the push block (5), of the ring blocks (11), and the other ends of the springs (12) are fixedly connected with the bottom, far away from the push block (5), of the jack.

3. A machining center clamping device according to claim 2, characterized in that two guide blocks (13) are fixedly arranged on the outer wall of each of the plurality of ring blocks (11), two guide grooves are arranged in the insertion holes, and the plurality of guide blocks (13) are arranged in the guide grooves and are in sliding fit with the guide grooves.

4. The machining center clamping device as claimed in claim 3, wherein a plurality of annular grooves (14) are formed in the surfaces of a plurality of the insert rods (4), and the plurality of annular grooves (14) are located between one ends of the insert rods (4) far away from the push block (5) and one ends of the annular blocks (11) far away from the push block (5).

5. The machining center clamping device as claimed in claim 4, wherein two blocks (15) are symmetrically and fixedly arranged on one side of each of the four sliding blocks (3), clamping grooves are formed in the two blocks (15), a clamping block (16) is arranged on one side of each clamping groove, one end of each clamping block (16) is located in each clamping groove and is in sliding fit with the clamping groove, a return spring (17) is fixedly arranged at the bottom of each clamping groove, and the other end of each return spring (17) is fixedly connected with one end of each clamping block (16).

6. A machining center clamping device according to claim 5, characterized in that two grooves are symmetrically formed in one side of each of the sliding blocks (3), a sliding strip (18) is fixedly arranged on one side of each of the two clamping blocks (16), and the sliding strips (18) are located in the grooves and are in sliding fit with the grooves.

7. The machining center clamping device according to claim 6, wherein an anti-abrasion pad (19) is fixedly arranged on the surface of each of the plurality of pushing blocks (5), the surface of the anti-abrasion pad (19) is rough, and the anti-abrasion pad (19) has elasticity.