CN219403411U

CN219403411U - Hydraulic clamp for vertical machining center

Info

Publication number: CN219403411U
Application number: CN202320797582.5U
Authority: CN
Inventors: 李鹏
Original assignee: Jiangsu Dewan Cnc Machine Tool Technology Co ltd
Current assignee: Jiangsu Dewan Cnc Machine Tool Technology Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-07-25
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses a hydraulic clamp for a vertical machining center, which relates to the technical field of hydraulic clamps and comprises a mounting base plate, wherein connecting seats are fixedly arranged on the left side and the right side of the top end of the mounting base plate, hydraulic cylinders are fixedly arranged on the two connecting seats, outer frames are fixedly arranged at the piston rod ends of the hydraulic cylinders, middle partition plates are arranged on the inner sides of the outer frames, mounting clamping plates are arranged on the inner sides of the middle partition plates, two plug-in cylinders are fixedly arranged on the inner sides of the middle partition plates, two plug-in rods are fixedly arranged on the outer sides of the mounting plates, and two first connecting springs are arranged between the middle partition plates and the mounting plates. The vertical machining center hydraulic fixture that this application provided sets up first coupling spring and second coupling spring for both sides clamping plate presents progressive increase to the clamping force of part, has reduced the damage to the part surface, and utilizes the deformation characteristic of first coupling spring and second coupling spring, has strengthened the clamping force to the part.

Description

Hydraulic clamp for vertical machining center

Technical Field

The utility model relates to the technical field of hydraulic clamps, in particular to a hydraulic clamp of a vertical machining center.

Background

The vertical machining center refers to a machining center with a spindle axis arranged perpendicular to a workbench. In a vertical machining center, a jig for a workpiece is an important factor affecting machining accuracy and machining efficiency. Most of the existing clamps clamp workpieces mechanically, the pretightening force is insufficient, so that the feed amount of the vertical machining center cannot be too large, and the workpieces are easy to move relative to the clamps after being stressed, so that the machining precision of the vertical machining center is reduced.

The hydraulic clamp is a clamp which replaces mechanical parts with hydraulic elements and realizes automatic positioning, supporting and clamping of workpieces through hydraulic control. In the related art, generally, one clamping head is fixedly arranged on a mounting plate, the other clamping head is fixedly arranged on a piston rod end of a hydraulic cylinder, the hydraulic cylinder is started during clamping, a piston rod of the hydraulic cylinder drives one clamping head to move towards the other clamping head, and clamping of a part is achieved. The present device was invented by studying the above problems.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a hydraulic clamp for a vertical machining center, which solves the problems set forth in the above-mentioned background art.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a vertical machining center hydraulic fixture, includes the installation backing plate, the equal fixed mounting in left and right sides on installation backing plate top has the connecting seat, two equal fixed mounting has the pneumatic cylinder on the connecting seat, the equal fixed mounting of pneumatic cylinder piston rod end has outer frame, outer frame inboard is provided with middle division board, fixed mounting has two connecting rods one between outer frame and the middle division board, middle division board comprises connecting portion and the two separation portions that set up at both ends that set up in the centre to be integrated into one piece structure between connecting portion and two separation portions, middle division board inboard is provided with the dress splint, middle division board medial surface fixed mounting has two grafting section of thick bamboo, clamping board lateral surface fixed mounting has two grafting poles to be provided with two first connecting springs between middle division board and the clamping board.

Optionally, the first connecting rods are movably connected with the outer frame, and the first connecting rods are fixedly connected with the middle partition plate.

Optionally, two locating plates are fixedly arranged on the inner side face of the outer frame, a second connecting rod is fixedly arranged between the two ends of the outer frame and the two locating plates, and a second connecting spring is arranged on the second connecting rod.

Optionally, two equal sliding connection has the movable block on the connecting rod two, the movable block top all is provided with first connecting block with the bottom an organic whole, middle division board top and bottom all fixed mounting have two second connecting blocks, four the position of first connecting block and the position one-to-one of four second connecting blocks to movable mounting has the support member between first connecting block and the second connecting block.

Optionally, one end of the second connecting spring is fixedly connected with the outer frame, and the other end of the second connecting spring is fixedly connected with the moving block.

Optionally, the outer wall surface of the moving block is attached to the inner wall surface of the outer frame.

Optionally, the longitudinal sections of the first connecting block and the second connecting block are both T-shaped structures.

Compared with the prior art, the utility model has the beneficial effects that:

this vertical machining center hydraulic fixture is provided with pneumatic cylinder, outer frame, middle division board, clamping plate, second coupling spring, movable block, support member, grafting section of thick bamboo, grafting pole and first coupling spring, when the part of treating the centre gripping, first coupling spring and second coupling spring all are in compression state, under the effect of self deformation characteristic, first coupling spring and second coupling spring all produce reverse effort to further strengthened the clamping force to the part, guaranteed vertical machining center when processing the part structural stability, thereby guaranteed machining precision, simultaneously, set up first coupling spring and second coupling spring, make both sides clamping plate appear progressive increase to the clamping force of part, reduced the damage to the part surface.

Drawings

For a clearer description of embodiments of the present application or of the solutions in the prior art, the drawings that are needed in the embodiments will be briefly described, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and that other drawings can be obtained according to these drawings by a person having ordinary skill in the art.

FIG. 1 is a schematic view of the structure of example 1 provided by a vertical machining center hydraulic jig;

FIG. 2 is a top plan view of the structure of example 1 provided by a vertical machining center hydraulic clamp;

FIG. 3 is a schematic view of a partial structure provided by a hydraulic clamp of a vertical machining center;

FIG. 4 is a schematic view of the structure of example 2 provided by the hydraulic clamp of the vertical machining center;

FIG. 5 is a top plan view of the structure of example 2 provided by the hydraulic clamp of the vertical machining center;

fig. 6 is a schematic view of the structure of the moving block and the first connecting block provided by the hydraulic clamp of the vertical machining center.

Reference numerals illustrate:

1. installing a backing plate; 2. a connecting seat; 3. a hydraulic cylinder; 4. an outer frame; 5. an intermediate partition plate; 501. a connection part; 502. a blocking portion; 6. clamping plates are arranged; 7. a first connecting rod; 8. a positioning plate; 9. a second connecting rod; 10. a second connecting spring; 11. a moving block; 12. a first connection block; 13. a second connection block; 14. a support rod; 15. a plug-in cylinder; 16. inserting a connecting rod; 17. and a first connecting spring.

Description of the embodiments

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, 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.

Examples

Referring to fig. 1-3, the hydraulic clamp for the vertical machining center of the embodiment comprises a mounting base plate 1, wherein the mounting base plate 1 is mounted on a workbench of the vertical machining center through bolts during use, connecting seats 2 are fixedly mounted on the left side and the right side of the top end of the mounting base plate 1, hydraulic cylinders 3 are fixedly mounted on the two connecting seats 2, the two hydraulic cylinders 3 are oppositely arranged, an outer frame 4 is fixedly mounted on the piston rod end of the hydraulic cylinder 3, a middle partition plate 5 is arranged on the inner side of the outer frame 4, and a clamping plate 6 is arranged on the inner side of the middle partition plate 5.

The cross section of the outer frame 4 is of a -shaped structure, two connecting rods 7 are fixedly arranged between the outer frame 4 and the middle partition plate 5, two plug-in cylinders 15 are fixedly arranged on the inner side surface of the middle partition plate 5, two plug-in rods 16 are fixedly arranged on the outer side surface of the clamping plate 6, the diameter of each plug-in rod 16 is equal to the inner diameter of each plug-in cylinder 15, each plug-in rod 16 is arranged in each plug-in cylinder 15, two first connecting springs 17 are arranged between the middle partition plate 5 and the clamping plate 6, one end of each first connecting spring 17 is fixedly connected with the middle partition plate 5, and the other end of each first connecting spring 17 is fixedly connected with the clamping plate 6.

Wherein, middle division board 5 comprises connecting portion 501 and two separation portion 502 that set up at both ends that set up in the centre, and separation portion 502 at both ends is broken line shape structure to be integrated into one piece structure between connecting portion 501 and the two separation portion 502.

It is noted that the length of the clamping plate 6 is longer than the length of the intermediate partition plate 5, and the length of the clamping plate 6 is equal to the length of the outer frame 4.

When the clamping device is used, an operator places a part to be clamped between two clamping plates 6, then starts two hydraulic cylinders 3, piston rods of the two hydraulic cylinders 3 extend out to drive outer frames 4, middle partition plates 5 and clamping plates 6 on two sides to move in opposite directions, the clamping plates 6 on two sides are contacted with the part first, along with continuous extension of the piston rods, the inserting connection rods 16 gradually extend into the inserting connection cylinders 15, and the first connecting springs 17 are compressed gradually, the clamping plates 6 on two sides move in opposite directions, when the clamping plates 6 on two sides are respectively contacted with blocking portions 502 of the middle partition plates 5 on two sides, the hydraulic cylinders 3 are closed to stop extension of the piston rods, clamping of the part is achieved at the moment, and the first connecting springs 17 generate reverse acting force under the action of self deformation characteristics, so that the clamping force on the part is further enhanced, the structural stability of the vertical machining center on the part is guaranteed, machining precision is guaranteed, meanwhile, the clamping force of the clamping plates 6 on two sides on the part is gradually increased, and damage on the surface of the part is reduced.

Examples

Referring to fig. 4-6, in this embodiment, the connection manner between the first two connecting rods 7 and the outer frame 4 and the connection manner between the first two connecting rods 7 and the middle partition plate 5 are different from those in embodiment 1, in this embodiment, the first two connecting rods 7 are movably connected with the outer frame 4, and the first two connecting rods 7 are fixedly connected with the middle partition plate 5.

The inner side of the outer frame 4 is fixedly provided with two positioning plates 8, two ends of the outer frame 4 and the two positioning plates 8 are fixedly provided with two connecting rods 9, the two connecting rods 9 are provided with second connecting springs 10, the two connecting rods 9 are slidably connected with moving blocks 11, one end of each second connecting spring 10 is fixedly connected with the outer frame 4, and the other end of each second connecting spring 10 is fixedly connected with each moving block 11.

The top and bottom of the movable block 11 are all integrally provided with first connecting blocks 12, the top and bottom of the middle partition plate 5 are all fixedly provided with two second connecting blocks 13, the positions of the four first connecting blocks 12 are in one-to-one correspondence with the positions of the four second connecting blocks 13, and support rods 14 are movably arranged between the first connecting blocks 12 and the second connecting blocks 13.

Wherein, the longitudinal sections of the first connecting block 12 and the second connecting block 13 are of T-shaped structures, so that the support rod piece 14 can be prevented from falling off.

It is worth noting that the outer wall surface of the moving block 11 is attached to the inner wall surface of the outer frame 4, so that the limiting of the moving block 11 is realized, and the moving of the moving block 11 along the outer frame 4 is ensured.

When the vertical type clamping device is used, an operator places a part to be clamped between two clamping plates 6, then starts two hydraulic cylinders 3, piston rods of the two hydraulic cylinders 3 extend to drive outer frames 4 and middle partition plates 5 on two sides and clamping plates 6 to move in opposite directions, the clamping plates 6 on two sides are firstly contacted with the part, as the piston rods extend continuously, a plug-in rod 16 extends into a plug-in cylinder 15 gradually, a first connecting spring 17 compresses gradually, the clamping plates 6 on two sides move in opposite directions, a connecting rod 7 on two sides and the middle partition plates 5 on two sides also move in opposite directions, two moving blocks 11 on each side move in opposite directions, so that a second connecting spring 10 compresses gradually, when the clamping plates 6 on two sides are respectively contacted with the middle partition plates 5 on two sides, and the clamping plates 6 on two sides are respectively contacted with the outer frames 4 on two sides, the hydraulic cylinders 3 are closed, the extension of the piston rods is stopped, clamping of the part is realized, and the first connecting spring 17 generates reverse acting force under the action of self deformation characteristics, the second connecting spring 10 also generates reverse acting force under the action of self deformation characteristics, the clamping force on the part is further strengthened, the stability of the vertical type part machining precision is guaranteed, and the machining precision of the part is guaranteed.

Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The hydraulic clamp for the vertical machining center is characterized by comprising a mounting base plate (1), wherein a connecting seat (2) is fixedly arranged on the left side and the right side of the top end of the mounting base plate (1), two hydraulic cylinders (3) are fixedly arranged on the connecting seat (2), an outer frame (4) is fixedly arranged on the piston rod end of each hydraulic cylinder (3), two connecting rods (7) are fixedly arranged on the inner side of each outer frame (4), two first connecting springs (17) are arranged between each outer frame (4) and each middle separating plate (5), each middle separating plate (5) consists of a connecting part (501) arranged in the middle and two blocking parts (502) arranged at two ends, an integrally formed structure is arranged between each connecting part (501) and each two blocking parts (502), each middle separating plate (5) is internally provided with a mounting clamp plate (6), two plug-in cylinders (15) are fixedly arranged on the inner side surfaces of each middle separating plate (5), and two first connecting springs (17) are arranged between each middle separating plate (5) and each clamping plate (6).

2. The vertical machining center hydraulic jig according to claim 1, wherein: the first connecting rods (7) are movably connected with the outer frame (4), and the first connecting rods (7) are fixedly connected with the middle partition plate (5).

3. The vertical machining center hydraulic jig according to claim 1, wherein: the two positioning plates (8) are fixedly arranged on the inner side face of the outer frame (4), a connecting rod II (9) is fixedly arranged between the two ends of the outer frame (4) and the two positioning plates (8), and a second connecting spring (10) is arranged on the connecting rod II (9).

4. The vertical machining center hydraulic jig according to claim 3, wherein: two equal sliding connection has movable block (11) on connecting rod two (9), all an organic whole is provided with first connecting block (12) on movable block (11) top and bottom, equal fixed mounting in middle division board (5) top and bottom has two second connecting blocks (13), four the position of first connecting block (12) and the position one-to-one of four second connecting blocks (13) to movable mounting has support member (14) between first connecting block (12) and second connecting block (13).

5. The vertical machining center hydraulic jig according to claim 4, wherein: one end of the second connecting spring (10) is fixedly connected with the outer frame (4), and the other end of the second connecting spring (10) is fixedly connected with the moving block (11).

6. The vertical machining center hydraulic jig according to claim 4, wherein: the outer wall surface of the moving block (11) is attached to the inner wall surface of the outer frame (4).

7. The vertical machining center hydraulic jig according to claim 4, wherein: longitudinal sections of the first connecting block (12) and the second connecting block (13) are of T-shaped structures.