CN222134131U - Hydraulic matrix universal fixture - Google Patents

Abstract

The utility model discloses a hydraulic matrix universal clamp, comprising a base, a pull-down jaw assembly, a fixed jaw assembly and a hydraulic cylinder; the pull-down jaw assembly is arranged on the base, and the pull-down jaw assembly comprises a translation block and a pull-down block; the fixed jaw assembly is arranged on the base and cooperates with the translation block to clamp and lock the workpiece; the hydraulic cylinder is arranged on the base and drives the pull-down block to move up and down; the pull-down jaw assembly is at least two arranged side by side at intervals. By arranging at least two pull-down jaw assemblies corresponding to each hydraulic cylinder, and cooperating with each hydraulic cylinder to drive the pull-down blocks of at least two pull-down jaw assemblies to move up and down at the same time through a lever mechanism, multiple workpieces can be clamped at the same time, effectively improving the clamping efficiency, and greatly reducing the number of hydraulic cylinders, making the internal structure of the clamp more relaxed and simple, and at the same time saving the overall manufacturing cost and improving the product competitiveness.

Description

Hydraulic matrix universal fixture

Technical Field

The utility model relates to the technical field of clamps, in particular to a hydraulic matrix universal clamp.

Background

The vice is a tool for clamping a workpiece by relatively moving two jaws by using a screw or other mechanism. The vice is generally composed of a base, a vice body, a fixed jaw, a movable jaw and a transmission mechanism for moving the movable jaw. Different types of bench vices and machine vices are available according to the application occasions. The bench vice is arranged on the bench work workbench for the bench worker to clamp the workpiece so as to process sawing, filing and the like. The jaw of the bench vice is generally higher and is arched, and the body of the bench vice can be rotated and fastened on the base at will. The vice is an accessory of machine tool, also called flat tongs, and is generally installed on the working table of milling machine, drilling machine, shaper and surface grinder. Compared with bench vices, the machine vice has wide and low jaw, large clamping force and high precision requirement. The machine vice has various types, and can be classified into a common type and a precise type according to precision. The precision type machine tool is used for finishing machine tools such as surface grinding machines, boring machines and the like. The machine vice structure can be divided into a rotary type with a base, a fixed type without a base, a tiltable type and the like.

At present, a hydraulic combined vice is available on the market and can clamp a workpiece well, and the hydraulic combined vice mainly comprises a base, a pull-down jaw assembly, a fixed jaw assembly and a hydraulic cylinder, wherein the pull-down jaw assembly is arranged on the base and comprises a translation block and a pull-down block, the fixed jaw assembly is arranged on the base and is matched with the translation block to clamp and lock the workpiece, and the hydraulic cylinder is arranged on the base and drives the pull-down block to move up and down.

However, in the prior art, if a hydraulic cylinder correspondingly drives a pull-down jaw assembly, a plurality of hydraulic cylinders and a plurality of pull-down jaw assemblies are required to be arranged when a plurality of workpieces are required to be clamped, and the plurality of hydraulic cylinders respectively drive the plurality of pull-down jaw assemblies to clamp the plurality of workpieces, so that the clamping efficiency is low, the internal structure of the hydraulic combined vice becomes very crowded and complicated, and the overall manufacturing cost of the hydraulic combined vice is increased. Thus, there is a need for improvements to current hydraulic combination vises.

Disclosure of utility model

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its primary objective is to provide a hydraulic matrix universal fixture, which can effectively solve the problems of low clamping efficiency, crowded and complex internal structure and high manufacturing cost of the existing hydraulic combined vice.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The hydraulic matrix universal clamp comprises a base, a pull-down clamp assembly, a fixed clamp jaw assembly and hydraulic cylinders, wherein the pull-down clamp jaw assembly is arranged on the base and comprises a translation block and a pull-down block, the fixed clamp jaw assembly is arranged on the base and is matched with the translation block to clamp and lock a workpiece, the hydraulic cylinders are arranged on the base and drive the pull-down block to move up and down, the pull-down clamp jaw assembly is at least two in parallel and at intervals, at least one fixed clamp jaw assembly is arranged for each pull-down clamp jaw assembly, and each hydraulic cylinder drives the pull-down blocks of at least two pull-down clamp jaw assemblies to move up and down simultaneously through a lever mechanism.

As a preferable scheme, the number of the hydraulic cylinders is two, two pull-down clamp assemblies are arranged for each hydraulic cylinder, and each hydraulic cylinder drives the pull-down blocks of the two pull-down clamp assemblies to move up and down simultaneously through the lever mechanism, so that more workpieces can be clamped simultaneously.

As a preferred scheme, lever mechanism is including lever, connecting rod and two pull down bars, the one end and the piston rod fixed connection of pneumatic cylinder of this connecting rod, and the other end of connecting rod is articulated with the middle part of lever, and the equal vertical extension of these two pull down bars, the upper end of two pull down bars respectively with the pull down piece fixed connection of two pull down pincers mouth assemblies, the lower extreme of two pull down bars respectively with the both ends articulated of lever, simple structure, it is better to press from both sides tight effect.

As a preferable scheme, a containing cavity is formed in the base, the hydraulic cylinder is fixed to the inner top of the containing cavity, a piston rod of the hydraulic cylinder faces downwards, the lever is located below the hydraulic cylinder, the two lower pull rods are located on two sides of the hydraulic cylinder respectively, and the hydraulic cylinder is compact in structure and capable of clamping a workpiece better.

As a preferable scheme, return springs are arranged between bottoms of two ends of the lever and the inner bottom of the accommodating cavity so as to enable the lever to return upwards rapidly.

As a preferable scheme, the lower pull rod comprises equal-height screws and equal-height nut sleeves, the upper ends of the equal-height screws are fixedly connected with the lower ends of the lower pull blocks, the upper ends of the equal-height nut sleeves are in threaded connection with the lower ends of the equal-height screws, the lower ends of the equal-height nut sleeves are hinged with the end parts of the levers, and the lower pull rod is simple in structure and convenient to assemble.

As a preferable scheme, one end of the connecting rod is fixedly connected with a piston rod of the hydraulic cylinder in a screwed mode, the other end of the connecting rod is hinged to the middle of the lever through a first pin, and the connecting rod is simple in structure and convenient to assemble.

As a preferable scheme, the lower ends of the two lower pull rods are hinged with the two end parts of the lever through second pins respectively, and the structure is simple and the assembly is convenient.

As a preferable scheme, the pull-down jaw assembly is provided with two translation blocks, the two translation blocks are respectively positioned at two sides of the pull-down block and driven by the pull-down block to move horizontally back and forth, two fixed jaw assemblies are respectively arranged for each pull-down jaw assembly, the two fixed jaw assemblies are respectively positioned at two sides of the pull-down jaw assembly, and the two fixed jaw assemblies are respectively matched with the two translation blocks to clamp and lock two workpieces so as to clamp more workpieces simultaneously.

As a preferable scheme, the base is provided with an infusion connector and a plurality of liquid spraying heads, the liquid spraying heads are connected with the infusion connector, and the liquid spraying heads are respectively positioned between the corresponding translation blocks and the corresponding fixed jaw assemblies so as to spray cooling liquid on the workpiece in the processing process.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:

Through setting up two at least pull-down jaw assemblies corresponding to each pneumatic cylinder to cooperate each pneumatic cylinder to drive the pull-down piece of two at least pull-down jaw assemblies through a lever mechanism and move about simultaneously, can press from both sides tightly simultaneously a plurality of work pieces, effectively improved clamping efficiency, and can significantly reduce pneumatic cylinder quantity, make anchor clamps inner structure loose more simple, still can save holistic manufacturing cost simultaneously, promote product competitiveness.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present utility model;

FIG. 2 is an assembled perspective view of another angle of the preferred embodiment of the present utility model;

FIG. 3 is a partially exploded view of the preferred embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a preferred embodiment of the present utility model;

FIG. 5 is another cross-sectional view of the preferred embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. Base 11 and pallet

12. Equal-height support plate 13 and base plate

14. Hanging tooth block 141, first tooth

142. Bar-shaped through hole 15 and sliding guide block

101. Accommodating cavity 102 and positioning groove

20. Pull-down jaw assembly 21 and translation block

211. First base 212, first jaw member

213. First bolt 22, pull-down block

201. Dovetail groove 202 and dovetail block

203. Through hole 30 and fixed jaw assembly

31. Second base 311 and second tooth

312. Securing aperture 32, second jaw member

33. Second bolt 34, fixing bolt

35. Quick jaw of fixing nut 301

40. Hydraulic cylinder 41, piston rod

51. Confluence block 52 and gas path joint

53. Oil line joint 54 and infusion joint

55. Liquid ejecting head 60 and lever mechanism

61. Lever 62, connecting rod

63. Lower pull rod 631 and contour screw

632. Equal-height nut sleeve 633 and gasket

634. Disc spring 64, first pin

65. A second pin 66, a return spring.

Detailed Description

Referring to fig. 1 to 5, a preferred embodiment of the present utility model is shown, which comprises a base 10, a pull-down jaw assembly 20, a fixed jaw assembly 30, and a hydraulic cylinder 40.

The base 10 has a chamber 101 therein. Specifically, the base 10 includes a supporting plate 11, a plurality of supporting plates 12 with equal height, and a base plate 13, wherein the supporting plates 12 are all disposed on the supporting plate 11 and connected end to form a frame, and the base plate 13 is disposed on the frame and forms the accommodating cavity 101 with the frame. And, the surface of the substrate 13 is concavely provided with a plurality of positioning slots 102 which are arranged at intervals left and right, each positioning slot 102 extends back and forth, the front end and the rear end of each positioning slot 102 are embedded and fixed with a tooth hanging block 14, a first tooth 141 is formed on the surface of the tooth hanging block 14, a strip-shaped through hole 142 is formed on the tooth hanging block 14, and two sides of the middle part of each positioning slot 102 are provided with sliding guide blocks 15. And, a confluence block 51 is provided at the rear side of the base 10, and an air path joint 52 and an oil path joint 53 are provided on the confluence block 51.

The pull-down jaw assembly 20 is arranged on the base, the pull-down jaw assembly 20 comprises a translation block 21 and a pull-down block 22, the fixed jaw assembly 30 is arranged on the base 10 and is matched with the translation block 21 to clamp and lock a workpiece, the hydraulic cylinders 40 are arranged on the base 10 and drive the pull-down block 22 to move up and down, the number of the pull-down jaw assemblies 20 is at least two, at least one fixed jaw assembly 30 is arranged for each pull-down jaw assembly 20, at least one hydraulic cylinder 40 is arranged, and each hydraulic cylinder 40 drives the pull-down blocks 22 of at least two pull-down jaw assemblies 20 to move up and down simultaneously through a lever mechanism 60.

In this embodiment, two hydraulic cylinders 40 are provided, and two pull-down jaw assemblies 20 are provided for each hydraulic cylinder 40, and each hydraulic cylinder 40 drives the pull-down blocks 22 of the two pull-down jaw assemblies 20 to move up and down simultaneously through a lever mechanism 60. The pull-down jaw assembly 20 has two translation blocks 21, the two translation blocks 21 are respectively located at two sides of the pull-down block 22 and are driven by the pull-down block 22 to move horizontally back and forth, two fixed jaw assemblies 30 are respectively arranged for each pull-down jaw assembly 20, the two fixed jaw assemblies 30 are respectively located at two sides of the pull-down jaw assembly 20, and the two fixed jaw assemblies 30 respectively cooperate with the two translation blocks 21 to clamp and lock two workpieces so as to form a matrix arrangement structure.

Specifically:

The inside of the translation block 21 is provided with a dovetail groove 201, the dovetail groove 201 extends in an up-down inclined manner, correspondingly, the outside of the pull-down block 22 is convexly provided with a dovetail block 202, and the dovetail block 202 and the dovetail groove 201 are clamped together in a sliding fit manner, so that the pull-down block 22 drives the translation block 21 to slide horizontally back and forth, and in the embodiment, the translation block 21 slides back and forth along the sliding guide block 15, and the sliding is more stable and accurate. And, the translation block 21 includes a first base 211 and a first jaw member 212 fixed to the first base 211, the first jaw member 212 being fixed to a top outer edge of the first base 211 by a first bolt 213. And a through hole 203 is formed through the upper and lower surfaces of the center of the pull-down block 22.

The fixed jaw assembly 30 is positioned on the cog block 14 in a back and forth adjustable position and is fixedly connected to the cog block 14. Specifically, the fixed jaw assembly 30 includes a second base 31 and a second jaw member 32 fixed on the second base 31, the second jaw member 32 is fixed on the top outer edge of the second base 31 by a second bolt 33, and a quick jaw 301 for clamping a workpiece is formed between the second jaw member 32 and the corresponding first jaw member 212. The bottom surface of the second base 31 has a second tooth 311, the second tooth 311 is engaged with the first tooth 141, the second base 31 is provided with a fixing hole 312, a fixing bolt 34 sequentially passes through the fixing hole 312 and the bar-shaped through hole 142 from top to bottom and is fixedly connected with a fixing nut 35 in a threaded manner, so that the fixed jaw assembly 30 is locked on the hanging tooth block 14, the second base 31 can be moved by loosening the fixing bolt 34 and the fixing nut 35 to enable the second tooth 311 to be engaged with different first teeth 141, and then the fixing bolt 34 and the fixing nut 35 are locked, so that the distance between the second jaw 32 and the corresponding first jaw 212 can be adjusted at will, and the size of the quick jaw 301 can be adjusted at will according to the size of a workpiece, and the use is flexible and convenient.

The hydraulic cylinder 40 is fixed to the inner top of the accommodating chamber 101, the piston rod 41 of the hydraulic cylinder 40 faces downward, and the hydraulic cylinder 40 is connected with the confluence block 51 through an air pipe and an oil pipe.

The lever mechanism 60 comprises a lever 61, a connecting rod 62, and two pull-down rods 63, wherein one end of the connecting rod 62 is fixedly connected with the piston rod 41 of the hydraulic cylinder 40, the other end of the connecting rod 62 is hinged with the middle part of the lever 61, the two pull-down rods 63 extend vertically, the upper ends of the two pull-down rods 63 are respectively fixedly connected with the pull-down blocks 22 of the two pull-down jaw assemblies 20, and the lower ends of the two pull-down rods 63 are respectively hinged with the two end parts of the lever 61. In the present embodiment, the lever 61 is located below the hydraulic cylinder 40. One end of the connecting rod 62 is fixedly connected with the piston rod 41 of the hydraulic cylinder 40 in a threaded manner, the other end of the connecting rod 62 is hinged with the middle part of the lever 61 through a first pin 64, and the hydraulic cylinder is simple in structure and convenient to assemble. The two lower pull rods 63 are respectively located at two sides of the hydraulic cylinder 40, and the lower ends of the two lower pull rods 63 are respectively hinged with two end parts of the lever 61 through second pins 65, so that the structure is simple and the assembly is convenient. In addition, the pull-down rod 63 includes a constant-height screw 631 and a constant-height nut sleeve 632, wherein the upper ends of the constant-height screws 631 are fixedly connected with the pull-down block 22, the upper ends of the constant-height nut sleeves 632 are in threaded connection with the lower ends of the constant-height screws 631, and the lower ends of the constant-height nut sleeves 632 are hinged with the end parts of the levers 61, so that the structure is simple and the assembly is convenient. The high screws 631 pass through the through holes 203 from top to bottom, and the gasket 633 and the disc spring 634 are engaged in the through holes 203 to clamp and fix the heads of the high screws 631. In addition, a return spring 66 is provided between the bottoms of both ends of the lever 61 and the inner bottom of the accommodating chamber 101 so as to quickly return the lever 61 upward.

And, the base 10 is provided with an infusion connector 54 and a plurality of liquid spray heads 55, the liquid spray heads 55 are connected with the infusion connector 54, and the liquid spray heads 55 are respectively positioned between the corresponding translation blocks 21 and the corresponding fixed jaw assemblies 30 so as to spray cooling liquid on the workpiece in the processing process.

The working principle of the embodiment is described in detail as follows:

When the device is used, firstly, the device is fixed on processing equipment, the air path connector 52 and the oil path connector 53 are connected with an external hydraulic station, then, a plurality of workpieces to be processed are placed between the corresponding translation blocks 21 and the corresponding fixed jaw assemblies 30, then, the hydraulic station drives the hydraulic cylinder 40 to work, the piston rod 41 stretches downwards to drive the lever 61 to move downwards, the lever 61 drives the two lower pull rods 63 to move downwards, the lower pull rods 63 move downwards to pull the lower pull blocks 22 of the at least two lower jaw assemblies 20 to move downwards, and the lower pull blocks 22 of the at least two lower jaw assemblies 20 move downwards to drive the corresponding translation blocks 21 to horizontally slide and to be close to the corresponding fixed jaw assemblies 30, so that the workpieces are clamped between the corresponding fixed jaw assemblies 30 and the corresponding translation blocks 21 at the same time, and the workpieces are clamped by the processing equipment. When a plurality of workpieces are processed, the hydraulic station drives the hydraulic cylinder 40 to work again, so that the piston rod 41 is retracted upwards, the piston rod 41 is retracted upwards and is matched with the action of the return spring 66, the lever 61 is quickly moved upwards to be reset, the lever 61 drives the two pull down rods 63 to move upwards, the pull down rods 63 move upwards to drive the pull down blocks 22 of the at least two pull down jaw assemblies 20 to move upwards, and the pull down blocks 22 of the at least two pull down jaw assemblies 20 move upwards to drive the corresponding translation blocks 21 to slide horizontally reversely and away from the corresponding fixed jaw assemblies 30, so that a plurality of workpieces are simultaneously loosened, and at the moment, the workpieces can be taken down.

The utility model has the design key points that the plurality of workpieces can be clamped simultaneously by arranging at least two pull-down jaw assemblies corresponding to each hydraulic cylinder and driving the pull-down blocks of the at least two pull-down jaw assemblies to move up and down by a lever mechanism in cooperation with each hydraulic cylinder, so that the clamping efficiency is effectively improved, the number of the hydraulic cylinders can be greatly reduced, the internal structure of the clamp is more loose and simple, the whole manufacturing cost can be saved, and the product competitiveness is improved.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims (10)

1. The hydraulic matrix universal clamp comprises a base, a pull-down clamp assembly, a fixed clamp jaw assembly and hydraulic cylinders, wherein the pull-down clamp jaw assembly is arranged on the base and comprises a translation block and a pull-down block, the fixed clamp jaw assembly is arranged on the base and is matched with the translation block to clamp and lock a workpiece, the hydraulic cylinders are arranged on the base and drive the pull-down block to move up and down, and the hydraulic matrix universal clamp is characterized in that the number of the pull-down clamp jaw assembly is at least two, at least one fixed clamp jaw assembly is arranged for each pull-down clamp jaw assembly, and each hydraulic cylinder drives the pull-down blocks of at least two pull-down clamp jaw assemblies to move up and down simultaneously through a lever mechanism.

2. The hydraulic matrix universal fixture according to claim 1, wherein the number of the hydraulic cylinders is two, two pull-down jaw assemblies are arranged for each hydraulic cylinder, and each hydraulic cylinder drives pull-down blocks of the two pull-down jaw assemblies to move up and down simultaneously through a lever mechanism.

3. The hydraulic matrix universal fixture of claim 2, wherein the lever mechanism comprises a lever, a connecting rod and two pull-down rods, one end of the connecting rod is fixedly connected with a piston rod of the hydraulic cylinder, the other end of the connecting rod is hinged with the middle part of the lever, the two pull-down rods vertically extend, the upper ends of the two pull-down rods are respectively fixedly connected with pull-down blocks of the two pull-down jaw assemblies, and the lower ends of the two pull-down rods are respectively hinged with two end parts of the lever.

4. The hydraulic matrix universal fixture according to claim 3, wherein the base is provided with a containing cavity, the hydraulic cylinder is fixed at the inner top of the containing cavity, a piston rod of the hydraulic cylinder faces downwards, the lever is positioned below the hydraulic cylinder, and the two lower pull rods are respectively positioned at two sides of the hydraulic cylinder.

5. The hydraulic matrix universal fixture of claim 4, wherein return springs are arranged between bottoms of two ends of the lever and an inner bottom of the accommodating cavity.

6. The hydraulic matrix universal fixture according to claim 3, wherein the pull-down rod comprises equal-height screws and equal-height nut sleeves, the upper ends of the equal-height screws are fixedly connected with the pull-down blocks, the upper ends of the equal-height nut sleeves are in threaded connection with the lower ends of the equal-height screws, and the lower ends of the equal-height nut sleeves are hinged with the end parts of the levers.

7. The hydraulic matrix universal fixture according to claim 3, wherein one end of the connecting rod is fixedly connected with a piston rod of the hydraulic cylinder in a threaded manner, and the other end of the connecting rod is hinged with the middle part of the lever through a first pin.

8. The hydraulic matrix universal fixture according to claim 3, wherein the lower ends of the two lower pull rods are hinged with the two end parts of the lever through second pins respectively.

9. The hydraulic matrix universal fixture according to claim 1, wherein the pull-down jaw assembly is provided with two translation blocks, the two translation blocks are respectively positioned at two sides of the pull-down block and driven by the pull-down block to move horizontally back and forth, two fixed jaw assemblies are respectively arranged for each pull-down jaw assembly, the two fixed jaw assemblies are respectively positioned at two sides of the pull-down jaw assembly, and the two fixed jaw assemblies are respectively matched with the two translation blocks to clamp and lock two workpieces.

10. The universal hydraulic matrix clamp according to claim 1, wherein the base is provided with an infusion connector and a plurality of liquid spraying heads, the liquid spraying heads are connected with the infusion connector, and the liquid spraying heads are respectively positioned between the corresponding translation blocks and the corresponding fixed jaw assemblies.