CN218639134U - Hydraulic clamping device for machine tool machining - Google Patents

Abstract

The utility model belongs to the technical field of machine tool machining, especially, be a machine tool machining hydraulic clamping device, including base and symmetrical fixed connection the fixing base of base upper surface and fixed connection be located the box of placing between two fixing bases at the base upper surface, still include the lifting unit who sets up at the fixing base upper surface, lifting unit includes fixed column one, through groove, motor, threaded rod, swivel nut, fixed column two, slide bar and sliding sleeve, fixed column one is fixed connection in the upper surface of one of them fixing base, fixed column two is fixed connection in the upper surface of another one of them fixing base, through groove has all been seted up in fixed column one and the fixed column two; the clamping device is favorable for adjusting the clamping height of the clamping device, is convenient to be matched with different machining tools for use, has wide adaptation range, is favorable for improving the clamping firmness of the workpiece, and avoids the workpiece from falling off in the lifting process.

Description

Hydraulic clamping device for machine tool machining

Technical Field

The utility model belongs to the technical field of machine tool machining, concretely relates to machine tool machining hydraulic clamping device.

Background

The machine tool is a digital control machine tool for short, and is an automatic machine tool equipped with a program control system, said control system can logically process the program defined by control code or other symbol instruction, and can decode it, and can use the coded digital representation, and can utilize information carrier to input it into numerical control device, and can utilize the numerical control device to give out various control signals to control the action of machine tool, and can automatically machine the part according to the form and size required by drawing.

The published patent application (announcement) number CN216882816U discloses a metal part clamping device for machining a metal cutting machine, and the technology discloses that "after a workpiece is clamped and fixed by two clamping blocks, the angle of the workpiece can be adjusted by arranging a rotatable base, so that the machining requirements of different positions of the workpiece are adapted, and the use adaptability of the clamping device is improved".

Although above-mentioned design is through setting up the locating part, can realize quick unblock and locking of back shaft, thereby improve the work efficiency when adjusting the angle of work piece, and the ring gear that sets up can multi-angle meshing with the ring gear, thereby make the work piece can carry out multi-angle adjustment, and then improve the practicality, but the device is when using, it is unchangeable to the fixed height of work piece centre gripping, can't adjust, when installing with different lathe, because different lathe are to the processing height diverse of work piece, lead to in the practical application in-process, this clamping device can't cooperate the machining tool on the different lathe to use, the suitability is lower.

For this reason, a machine tool machining hydraulic clamping device is designed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a machine tool machining hydraulic clamping device has and to adjust the clamping height, the more firm characteristics of centre gripping.

In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic clamping device for machine tool machining comprises a base, fixing seats symmetrically and fixedly connected to the upper surface of the base, a placing box fixedly connected to the upper surface of the base and positioned between the two fixing seats, and a lifting assembly arranged on the upper surface of each fixing seat;

the lifting assembly comprises a first fixing column, a through groove, a motor, a threaded rod, a threaded sleeve, a second fixing column, a sliding rod, a sliding sleeve, a limit screw and an adjusting nut, the first fixing column is fixedly connected to the upper surface of one of the fixing seats, the second fixing column is fixedly connected to the upper surface of the other fixing seat, the through groove is formed in the first fixing column and the second fixing column, the motor is fixedly mounted on the upper surface of the first fixing column, the threaded rod is fixedly connected to the end portion of an output shaft of the motor, one end, far away from the motor, of the threaded rod is rotatably connected with the inner wall surface of the through groove through a bearing, the threaded sleeve is connected to the surface of the threaded rod, the sliding rod is fixedly connected to the inside of the through groove, the sliding sleeve is connected to the surface of the sliding rod in a sliding mode, the limit screw is fixedly connected to the upper surface of the sliding sleeve, one end, far away from the sliding sleeve, of the limit screw penetrates through the upper surface of the second fixing column, and the adjusting nut is connected to the surface of the limit screw.

As the utility model relates to a machine tool machining hydraulic pressure clamping device is preferred, still includes the stopper, stopper symmetry fixed connection be in the both sides of swivel nut, the fixed column is seted up link up inslot face symmetry seted up with stopper matched with spacing groove.

The hydraulic clamping device for machine tool machining is preferred to comprise a clamping component;

the centre gripping subassembly includes L type fixed plate, spring, L type splint, pneumatic cylinder and spacing telescopic link, the pneumatic cylinder respectively fixed mounting in the sliding sleeve with the one side that the swivel nut is close to each other, the sliding sleeve with the equal fixedly connected with in the one side that the swivel nut is close to each other spacing telescopic link, two spacing telescopic link all is located two the top of pneumatic cylinder, two the equal fixed connection of L type fixed plate is in the pneumatic cylinder with the one end of spacing telescopic link, L type fixed plate is kept away from the one side fixedly connected with of pneumatic cylinder the spring, the spring is kept away from the one end fixedly connected with of L type fixed plate L type splint.

As the utility model relates to a machine tool machining hydraulic clamping device is preferred, still includes anti-skidding rubber pad, anti-skidding rubber pad fixed connection is two the one side that L type splint are close to each other.

As the utility model relates to a machine tool machining hydraulic pressure clamping device is preferred, still includes slide rail and slider, the surface symmetry fixedly connected with of L type fixed plate the slide rail, two the spout has all been seted up to the upper surface of slide rail, two the equal symmetry fixedly connected with in bottom surface of L type splint with the spout matched with that the slide rail surface was seted up the slider.

Compared with the prior art, the beneficial effects of the utility model are that: add lifting unit in this application, be favorable to adjusting clamping device's centre gripping height, the different machining tool of convenient cooperation uses, and the adaptation scope is wide, adds the centre gripping subassembly simultaneously, is favorable to improving the centre gripping fastness to the work piece, avoids the work piece to take place to drop at the lift in-process.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a diagram of the connection structure between the limiting screw and the sliding sleeve of the present invention;

FIG. 3 is a view showing the connection structure between the middle threaded rod and the threaded sleeve according to the present invention;

FIG. 4 is a connection structure diagram of the L-shaped fixing plate and the L-shaped clamping plate of the present invention;

FIG. 5 is a schematic view of a connection structure between the first fixing column and the fixing base of the present invention;

in the figure:

1. a base; 2. a fixed seat; 3. placing the box;

4. a lifting assembly; 41. fixing a first column; 42. a through groove; 43. a motor; 44. a threaded rod; 45. a threaded sleeve; 46. a limiting groove; 47. a limiting block; 48. fixing a second column; 49. a slide bar; 410. a sliding sleeve; 411. a limit screw; 412. adjusting the nut;

5. a clamping assembly; 51. an L-shaped fixing plate; 52. a spring; 53. an L-shaped splint; 54. an anti-skid rubber pad; 55. a slide rail; 56. a slider; 57. a hydraulic cylinder; 58. limiting telescopic rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2;

the utility model provides a machine tool machining hydraulic pressure clamping device, includes base 1 and symmetry fixed connection at the fixing base 2 of 1 upper surface of base and fixed connection be located two fixing base 2 between place box 3 at 1 upper surface of base.

In this embodiment: when using, at first utilize the mounting hole on base 1 surface, install this clamping device to the lathe on, and pass through clamping device with the work piece of pending and fix, then can carry out the processing to the work piece, in the course of treatment, place box 3 through the setting and can accomodate the work piece that has handled, but current clamping device is in the use, it is unchangeable to the fixed height of work piece centre gripping, can't adjust, lead to in the practical application process, this clamping device can't cooperate different machining tool to use, the suitability is lower, borrow this on the basis add lifting unit 4 and clamping unit 5.

Further, the method comprises the following steps:

as shown in fig. 1 to 5:

with the above in mind: the lifting assembly 4 comprises a first fixing column 41, a through groove 42, a motor 43, a threaded rod 44, a threaded sleeve 45, a second fixing column 48, a sliding rod 49, a sliding sleeve 410, a limiting screw 411 and an adjusting nut 412, wherein the first fixing column 41 is fixedly connected to the upper surface of one of the fixing seats 2, the second fixing column 48 is fixedly connected to the upper surface of the other fixing seat 2, the through groove 42 is formed in each of the first fixing column 41 and the second fixing column 48, the motor 43 is fixedly installed on the upper surface of the first fixing column 41, the threaded rod 44 is fixedly connected to the end portion of an output shaft of the motor 43, one end, far away from the motor 43, of the threaded rod 44 is rotatably connected with the inner wall surface of the through groove 42 through a bearing, the threaded sleeve 45 is in threaded connection with the surface of the threaded rod 44, the sliding rod 49 is fixedly connected into the through groove 42 formed in the second fixing column 48, the sliding sleeve 410 is in sliding connection with the surface of the sliding rod 49, the upper surface of the sliding sleeve 410 is fixedly connected with the limiting screw 411, one end, the limiting screw 411, far away from the sliding sleeve 410, the upper surface of the fixing column 48 penetrates through the upper surface of the second fixing column 48, and the adjusting nut 412 is in threaded connection with the limiting screw.

In this embodiment: after the workpiece is clamped and fixed, the fixed height of the workpiece is adjusted according to the actual condition of a processing tool, when the workpiece is adjusted, firstly, a motor 43 installed on the upper surface of a first fixed column 41 is started to operate, so that the motor 43 drives a threaded rod 44 rotatably connected in a through groove 42 to rotate, the threaded rod 44 rotates and then drives a threaded sleeve 45 to ascend and descend on the threaded rod 44, the threaded sleeve 45 can drive a sliding sleeve 410 to slide on the surface of a sliding rod 49 arranged in the through groove 42 formed in a second fixed column 48 during ascending and descending, the height of the clamped workpiece can be adjusted, after the height is adjusted, the adjusting nut 412 is in contact with the upper surface of the second fixed column 48 by rotating the adjusting nut 412, the position of the sliding sleeve 410 is limited, and the workpiece of the same type can be clamped subsequently and conveniently.

It should be noted that: the sizes of the threaded sleeve 45 and the sliding sleeve 410 are smaller than the size of the through groove 42, so that the threaded sleeve 45 and the sliding sleeve 410 are not in contact with the inner surface of the through groove 42, and the friction force between the threaded sleeve 45 and the sliding sleeve 410 and the inner wall surface of the through groove 42 can be effectively reduced.

In an optional embodiment, the fixing device further comprises a limiting block 47, the limiting block 47 is symmetrically and fixedly connected to two sides of the threaded sleeve 45, and limiting grooves 46 matched with the limiting block 47 are symmetrically formed in the inner wall surface of the through groove 42 formed in the first fixing column 41.

In this embodiment: when moving the screw sleeve 45, through mutually supporting of the stopper 47 and the limiting groove 46 that set up, can guarantee that the screw sleeve 45 can not link up the groove 42 again and rotate along with the threaded rod 44 rotates two, through setting up stopper 47 and limiting groove 46, can effectively reduce the screw sleeve 45 and link up the area of contact of groove 42 internal face, be favorable to the screw sleeve 45 to go up and down.

In an alternative embodiment, the clamping assembly 5 includes an L-shaped fixing plate 51, a spring 52, an L-shaped clamping plate 53, a hydraulic cylinder 57 and a limiting telescopic rod 58, the hydraulic cylinder 57 is respectively and fixedly installed on one side of the sliding sleeve 410 and the threaded sleeve 45 close to each other, the limiting telescopic rod 58 is fixedly connected to one side of the sliding sleeve 410 and the threaded sleeve 45 close to each other, the two limiting telescopic rods 58 are both located above the two hydraulic cylinders 57, the two L-shaped fixing plates 51 are fixedly connected to one ends of the hydraulic cylinder 57 and the limiting telescopic rod 58, the spring 52 is fixedly connected to one side of the L-shaped fixing plate 51 far away from the hydraulic cylinder 57, and the L-shaped clamping plate 53 is fixedly connected to one end of the spring 52 far away from the L-shaped fixing plate 51.

In this embodiment: when the clamping device is used, firstly, the two hydraulic cylinders 57 are started to operate through the control button, so that the two hydraulic cylinders 57 can drive the two L-shaped fixing plates 51 to be close to each other, after a certain position is reached, the operation of the two hydraulic cylinders 57 is stopped at the moment, workpieces to be clamped are placed on the surfaces of the two L-shaped clamping plates 53, then the two hydraulic cylinders 57 are started to operate through the control button again, the two L-shaped fixing plates 51 are close to each other and continue to be close to each other, in the closing process, the two L-shaped clamping plates 53 gradually press the springs 52 on the two sides under the limiting effect of the workpieces and the hydraulic cylinders 57, the springs 52 on the two sides are in a compression state, under the elastic action of the springs 52 and the pressure matching of the hydraulic cylinders 57 on the two sides, the clamping firmness of the clamping device on the workpieces can be improved, and the workpieces can be effectively prevented from falling in the lifting process.

It should be noted that: the spring 52 is provided with a plurality of hydraulic cylinders 57 of the same type, and are connected with the same control button, so that the synchronous operation of the two hydraulic cylinders 57 is conveniently realized.

In an alternative embodiment, the device further comprises an anti-slip rubber pad 54, and the anti-slip rubber pad 54 is fixedly connected to the surfaces of the two L-shaped clamping plates 53, which are close to each other.

In this embodiment: when clamping is carried out, the anti-skid rubber pads 54 fixedly connected to the surfaces of the two L-shaped clamping plates 53 can protect a workpiece to a certain extent, and the two L-shaped clamping plates 53 are prevented from causing abrasion to the workpiece.

In an optional embodiment, the device further comprises a slide rail 55 and a slide block 56, the slide rail 55 is symmetrically and fixedly connected to the surface of the L-shaped fixing plate 51, the upper surfaces of the two slide rails 55 are both provided with slide grooves, and the slide blocks 56 matched with the slide grooves provided by the slide rail 55 are symmetrically and fixedly connected to the bottom surfaces of the two L-shaped clamping plates 53.

In this embodiment: in the clamping process, the L-shaped clamping plates 53 are extruded by the workpiece, so that the L-shaped clamping plates 53 are gradually close to the L-shaped fixing plate 51, and in the closing process, the sliding blocks 56 fixedly connected with the bottom surfaces of the L-shaped clamping plates 53 slide in the sliding rails 55 fixedly connected with the surfaces of the L-shaped fixing plate 51, so that the L-shaped clamping plates 53 can be limited in movement estimation, the two L-shaped clamping plates 53 can be guaranteed to move on the same horizontal plane, and the workpiece clamping stability is improved.

The working principle is as follows: when the clamping device is used, firstly, the clamping device is installed on a machine tool by utilizing the installation hole on the surface of the base 1, then, the device is connected with an external power supply device through a power line, when the clamping device is used, firstly, two hydraulic cylinders 57 are started to operate through a control button to enable the two hydraulic cylinders 57 to drive the two L-shaped fixing plates 51 to approach each other, when a certain position is reached, the two hydraulic cylinders 57 are stopped to operate, a workpiece to be clamped is placed on the surfaces of the two L-shaped clamping plates 53, then, the two hydraulic cylinders 57 are started to operate through the control button again to enable the two L-shaped fixing plates 51 to approach each other and continue to approach each other, and in the approaching process, the two L-shaped clamping plates 53 gradually extrude the springs 52 on the two sides under the limiting action of the workpiece and the hydraulic cylinders 57 to enable the springs 52 on the two sides to be in a compressed state, under the elastic force action of the spring 52 and the pressure fit of the hydraulic cylinders 57 on the two sides, the clamping firmness of the clamping device on the workpiece can be improved, when clamping is carried out, a certain protection effect can be achieved on the workpiece through the anti-skid rubber pads 54 fixedly connected to the surfaces of the two L-shaped clamping plates 53, the workpiece is prevented from being abraded by the two L-shaped clamping plates 53, in the clamping process, the L-shaped clamping plates 53 are extruded by the workpiece, the L-shaped clamping plates 53 are enabled to gradually approach the L-shaped fixing plate 51, in the approaching process, the sliding blocks 56 fixedly connected to the bottom surfaces of the L-shaped clamping plates 53 slide in the sliding rails 55 fixedly connected to the surfaces of the L-shaped fixing plate 51, so that the moving track of the L-shaped clamping plates 53 can be limited, the two L-shaped clamping plates 53 can be guaranteed to move on the same horizontal plane, the stability of clamping the workpiece is improved, after the workpiece is clamped, according to the actual conditions of a machining tool, the fixed height of a workpiece is adjusted, when the workpiece is adjusted, firstly, a motor 43 installed on the upper surface of a first fixing column 41 is started to operate, the motor 43 drives a threaded rod 44 which is connected in a through groove 42 to rotate, the threaded rod 44 rotates and then drives a threaded sleeve 45 to ascend and descend on the threaded rod 44, the threaded sleeve 45 drives a sliding sleeve 410 to slide on the surface of a sliding rod 49 arranged in the through groove 42 formed in a second fixing column 48 while ascending and descending, so that the height of a clamped workpiece can be adjusted, after the workpiece is adjusted, the adjusting nut 412 is in contact with the upper surface of the second fixing column 48 by rotating the adjusting nut 412, the position of the sliding sleeve 410 is limited, the subsequent clamping of the same type of workpiece is facilitated, when the threaded sleeve 45 is moved, the limiting block 47 and the limiting groove 46 are matched with each other, the threaded sleeve 45 can be ensured not to rotate along with the rotation of the second fixing column 44, the limiting block 47 and the limiting groove 46 are arranged, the contact area between the threaded sleeve 45 and the inner wall surface of the through groove 42 can be effectively reduced, the lifting of the threaded sleeve 45 is beneficial to the lifting of the threaded sleeve 45, and the workpiece can be accommodated in the processing process of the arranged placing box 3.

Finally, it should be noted that: although the present invention 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 above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a machine tool machining hydraulic pressure clamping device, includes base (1) and symmetry fixed connection be in the fixing base (2) and the fixed connection of base (1) upper surface are in base (1) upper surface is located two place box (3), its characterized in that between fixing base (2): the lifting component (4) is arranged on the upper surface of the fixed seat (2);

the lifting assembly (4) comprises a first fixing column (41), a through groove (42), a motor (43), a threaded rod (44), a threaded sleeve (45), a second fixing column (48), a sliding rod (49), a sliding sleeve (410), a limiting screw rod (411) and an adjusting nut (412), the first fixing column (41) is fixedly connected to the upper surface of one of the fixing seats (2), the second fixing column (48) is fixedly connected to the upper surface of the other fixing seat (2), the through groove (42) is formed in each of the first fixing column (41) and the second fixing column (48), the motor (43) is fixedly installed on the upper surface of the first fixing column (41), the threaded rod (44) is fixedly connected to the end portion of an output shaft of the motor (43), one end, far away from the motor (43), of the threaded rod (44) is rotatably connected with the inner wall surface of the through groove (42) through a bearing, the threaded sleeve (45) is connected to the surface of the sliding sleeve (44), the through groove (42) formed in the second fixing column (48) is fixedly connected with the threaded sleeve (49), the surface of the sliding sleeve (410) is slidably connected with the sliding sleeve (411), one end, far away from the sliding sleeve (410), of the limiting screw rod (411) penetrates through the upper surface of the second fixing column (48), and the surface of the limiting screw rod (411) is in threaded connection with the adjusting nut (412).

2. A machine tool hydraulic clamping apparatus according to claim 1 wherein: the screw sleeve fixing device is characterized by further comprising limiting blocks (47), the limiting blocks (47) are symmetrically and fixedly connected to two sides of the screw sleeve (45), and limiting grooves (46) matched with the limiting blocks (47) are symmetrically formed in the inner wall surface of the through groove (42) formed in the first fixing column (41).

3. The machine tool hydraulic clamping device of claim 1, wherein: also comprises a clamping component (5);

centre gripping subassembly (5) include L type fixed plate (51), spring (52), L type splint (53), pneumatic cylinder (57) and spacing telescopic link (58), pneumatic cylinder (57) respectively fixed mounting be in sliding sleeve (410) with the one side that swivel nut (45) are close to each other, sliding sleeve (410) with the equal fixedly connected with in one side that swivel nut (45) are close to each other spacing telescopic link (58), two spacing telescopic link (58) all are located two the top of pneumatic cylinder (57), two the equal fixed connection of L type fixed plate (51) is in pneumatic cylinder (57) with the one end of spacing telescopic link (58), keep away from L type fixed plate (51) the one side fixedly connected with of pneumatic cylinder (57) spring (52), spring (52) are kept away from the one end fixedly connected with of L type fixed plate (51) L type splint (53).

4. A machine tool hydraulic clamping apparatus according to claim 3 wherein: the L-shaped clamping plate is characterized by further comprising an anti-skidding rubber pad (54), wherein the anti-skidding rubber pad (54) is fixedly connected to one surface, close to each other, of the two L-shaped clamping plates (53).

5. The machine tool hydraulic clamping device of claim 3, wherein: the L-shaped clamping plate is characterized by further comprising sliding rails (55) and sliding blocks (56), the sliding rails (55) are symmetrically and fixedly connected to the surface of the L-shaped fixing plate (51), sliding grooves are formed in the upper surfaces of the two sliding rails (55), and the sliding blocks (56) matched with the sliding grooves formed in the surfaces of the sliding rails (55) are symmetrically and fixedly connected to the bottom surfaces of the two L-shaped clamping plates (53).

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