CN220362548U - Clamping mechanism for machining - Google Patents

Abstract

The utility model relates to the technical field of machining and discloses a clamping mechanism for machining, which comprises a fixed table and a clamping head, wherein the upper surface of the fixed table is connected with two clamping plates in a sliding manner, the upper surface of the fixed table is provided with two through holes, the bottom surface of the fixed table is fixedly connected with a shell, two L-shaped toothed plates are arranged in the shell, the bottom surface of each clamping plate is fixedly connected with a connecting plate, the bottom end of each connecting plate penetrates through the through holes and extends to the inside of the shell, and the bottom end of each connecting plate is connected with the L-shaped toothed plate.

Description

Clamping mechanism for machining

Technical Field

The utility model relates to the technical field of machining, in particular to a clamping mechanism for machining.

Background

The machining refers to a process of changing the external dimension or performance of a workpiece by a mechanical device, and the machining mode can be divided into cutting machining and pressing machining according to the difference of machining modes, and in the production process, the process of changing the shape, dimension, position, property and the like of a production object into a finished product or a semi-finished product is called a technological process, and is a main part of the production process. The technological process can be divided into casting, forging, stamping, welding, machining, assembling and other technological processes.

According to the fixture for machining disclosed in chinese patent No. CN208196216U, the fixture comprises a base plate, a rotating shaft plate is fixedly connected to one end of the base plate, a first threaded hole is formed in one side of the rotating shaft plate, a threaded rod is movably connected to an inner cavity of the first threaded hole through threads, a rocker is fixedly connected to one end of the threaded rod, and a rocking handle is connected to the rocker through a bearing.

Above-mentioned patent scheme adopts rocking handle and rocking arm to drive the screw thread pole and promotes the movable table, makes the movable table be close to the fixed station, with work piece centre gripping between movable table and fixed station, but the threaded rod uses for a long time, and wearing and tearing very easily appear in the screw thread, leads to the threaded rod to appear smooth silk, influences clamping effect, and for this reason, we propose a fixture for machining.

Disclosure of Invention

The utility model aims to provide a clamping mechanism for machining, which solves the problems that the threaded rod is easy to wear and cause sliding wire and the clamping effect is affected when the threaded rod is used for a long time in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fixture for machining, includes fixed station and gripping head, the upper surface sliding connection of fixed station has two grip blocks, two openings have been seted up to the upper surface of fixed station, the bottom surface fixedly connected with casing of fixed station, the inside of casing is equipped with two L type pinion racks, every the equal fixedly connected with connecting plate in bottom surface of grip block, every the bottom of connecting plate all runs through the opening and extends to the inside of casing, every the bottom of connecting plate all is connected with L type pinion racks, the bottom surface fixed mosaic of fixed station has first bearing, the interior bottom wall fixed mosaic of casing has the second bearing, the inner circle of first bearing and the inner circle of second bearing have the pivot together fixed mounting, the surface fixed mounting of pivot has the gear, two the surface fixed mounting of pivot has two third bearings are inlayed to the inner wall fixed mounting of casing, two the common fixed mounting of inner circle of third bearing has the worm wheel and worm, worm wheel and worm and motor, the worm wheel and the fixed mounting of the back of casing have the drive end to be connected with the worm.

As an optimal scheme, two clamping plates are close to each other, and a clamping groove is formed in one side face of each clamping plate, and each clamping groove is clamped with the clamping head.

As the preferable scheme, two sliding grooves are formed in the inner wall of the shell, sliding blocks are connected in the sliding grooves in a sliding mode, and one side face, close to each other, of each sliding block is connected with an L-shaped toothed plate.

As a preferable scheme, the bottom surface of the shell is fixedly connected with a base, and four mounting holes are formed in the upper surface of the base.

Preferably, a control switch is fixedly arranged on the front surface of the shell, and the control switch is electrically connected with the driving motor through a wire.

As a preferable scheme, movable ports are formed in the left side surface and the right side surface of the shell.

The utility model has the technical effects and advantages that:

according to the utility model, the clamping plates are arranged on the fixed table, the clamping heads of different types are arranged on the clamping plates, the clamping heads can be replaced according to the requirement, so that workpieces with different sections can be conveniently clamped, two L-shaped toothed plates are arranged in the machine shell and are connected with the clamping heads through the connecting plates, the two L-shaped toothed plates can drive the clamping heads to be far away from or close to each other under the rotation of the gears, the gears and the worm wheels are arranged on the rotating shaft, and the driving motor drives the worm to be matched with the worm wheels, so that the L-shaped toothed plates can be driven to drive the clamping plates to move, and the workpieces are clamped.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a top view of the housing of the present utility model.

Fig. 3 is a front cross-sectional view of the housing of the present utility model.

Fig. 4 is a schematic view of the connection structure of the worm wheel and worm of the present utility model.

In the figure: 1. a fixed table; 2. a control switch; 3. a housing; 4. a base; 5. a clamping plate; 6. a through port; 7. a clamping groove; 8. a clamping head; 9. a mounting hole; 10. a movable opening; 11. a chute; 12. a slide block; 13. an L-shaped toothed plate; 14. a gear; 15. a first bearing; 16. a connecting plate; 17. a driving motor; 18. a rotating shaft; 19. a worm; 20. a second bearing; 21. a worm wheel; 22. and a third bearing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a clamping mechanism for machining, as shown in fig. 1-4, which comprises a fixed table 1 and a clamping head 8, wherein the clamping head 8 is provided with a plurality of groups, the upper surface of the fixed table 1 is connected with two clamping plates 5 in a sliding manner, the upper surface of the fixed table 1 is provided with two through holes 6, the bottom surface of the fixed table 1 is fixedly connected with a shell 3, the inside of the shell 3 is provided with two L-shaped toothed plates 13, the bottom surface of each clamping plate 5 is fixedly connected with a connecting plate 16, the bottom end of each connecting plate 16 penetrates through the through holes 6 and extends into the inside of the shell 3, the bottom end of each connecting plate 16 is connected with the L-shaped toothed plates 13, the bottom surface of the fixed table 1 is fixedly embedded with a first bearing 15, the inner bottom wall of the shell 3 is fixedly embedded with a second bearing 20, the inner ring of the first bearing 15 and the inner ring of the second bearing 20 are fixedly installed together, the outer surface of the rotating shaft 18 is fixedly installed with a gear 14, one side, which is close to each other, of the two L-shaped toothed plates 13 is meshed with the gear 14, the outer surface of the rotating shaft 18 is fixedly installed with a 21, the inner wall of the shell 3 is fixedly embedded with two third bearings 22, the third bearings 22 are fixedly embedded with the worm wheel 22, the second bearings 19 are fixedly embedded with the worm bearings 19, and the worm is fixedly installed with the worm is fixedly installed on the back surface of the inner ring 19, and one end of the worm is fixedly installed with the worm drive motor 19, and is fixedly installed on the back surface of the back of the shell 19.

In this embodiment, draw-in groove 7 has all been seted up to a side that two grip blocks 5 are close to each other, every draw-in groove 7 all with clamping head 8 looks joint, through draw-in groove 7 and clamping head 8 joint, can conveniently change clamping head 8, set up the pull ring on clamping head 8, conveniently take down clamping head 8, two spouts 11 have been seted up to the inner wall of casing 3, the inside of every spout 11 is equal sliding connection has slider 12, a side that two sliders 12 are close to each other all is connected with L type pinion rack 13, through spout 11 and slider 12 cooperation L type pinion rack 13, can make things convenient for L type pinion rack 13 and gear 14 meshing.

In this embodiment, the bottom surface fixedly connected with base 4 of casing 3, four mounting holes 9 have been seted up to the upper surface of base 4, through base 4 and mounting hole 9 cooperation, the convenience is installed fixture on the machining center, the positive fixed mounting of casing 3 has control switch 2, control switch 2 passes through the wire and is connected with driving motor 17 electricity, the convenience is controlled fixture through control switch 2, movable mouth 10 has all been seted up to the left and right sides face of casing 3, through movable mouth 10, make things convenient for L type pinion rack 13 to slide, can not cause blocking L type pinion rack 13.

The working principle of the utility model is as follows: when the clamping mechanism for machining is used, the clamping mechanism is firstly fixed on a machining center through the mounting hole 9 on the base 4, a power supply of the clamping mechanism is connected, the clamping head 8 which is matched with the section of a workpiece to be clamped is adjusted according to the requirement, the clamping head 8 is clamped into the clamping groove 7 on the clamping plate 5, the driving motor 17 is started to drive the worm 19 to be matched with the worm wheel 21, the gear 14 is driven to rotate, the gear 14 is meshed with the two L-shaped toothed plates 13, and the L-shaped toothed plates 13 drive the clamping plate 5 to fix the workpiece under the matching of the sliding groove 11 and the sliding block 12.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. Clamping mechanism for machining, including fixed station (1) and gripping head (8), its characterized in that: the upper surface sliding connection of fixed station (1) has two grip blocks (5), two through-holes (6) have been seted up to the upper surface of fixed station (1), the bottom surface fixedly connected with casing (3) of fixed station (1), the inside of casing (3) is equipped with two L type pinion racks (13), every the bottom surface of grip blocks (5) is all fixedly connected with connecting plate (16), every the bottom of connecting plate (16) is all through-hole (6) and extends to the inside of casing (3), every the bottom of connecting plate (16) is all connected with L type pinion racks (13), the bottom surface fixed of fixed station (1) is inlayed and is had first bearing (15), the inner bottom wall fixed of casing (3) is inlayed and is had second bearing (20), the inner circle of first bearing (15) and the inner circle of second bearing (20) are fixed together and are installed pivot (18), the surface fixed mounting of pivot (18) has gear (14), two L type pinion racks (13) are all run through-hole (6) and are extended to the inside of casing (3), two one side of worm wheel (13) is close to each other gear (14) are all inlayed with inner circle (22) are all fixed with the inner wall (22), the fixed mounting of three (22), the worm (19) is meshed with the worm wheel (21), the driving motor (17) is fixedly arranged on the back of the shell (3), and one end of the worm (19) is connected with the output end of the driving motor (17).

2. A clamping mechanism for machining according to claim 1, wherein: clamping grooves (7) are formed in one side face, close to each other, of each clamping plate (5), and each clamping groove (7) is clamped with the clamping head (8).

3. A clamping mechanism for machining according to claim 1, wherein: two sliding grooves (11) are formed in the inner wall of the shell (3), sliding blocks (12) are slidably connected in the sliding grooves (11), and one side faces, close to each other, of the sliding blocks (12) are connected with an L-shaped toothed plate (13).

4. A clamping mechanism for machining according to claim 1, wherein: the bottom surface fixedly connected with base (4) of casing (3), four mounting holes (9) have been seted up to the upper surface of base (4).

5. A clamping mechanism for machining according to claim 1, wherein: the front of the shell (3) is fixedly provided with a control switch (2), and the control switch (2) is electrically connected with a driving motor (17) through a lead.

6. A clamping mechanism for machining according to claim 1, wherein: the left and right sides of the shell (3) are provided with movable ports (10).