Hydraulic matrix universal clamp

Abstract

The utility model discloses a universal fixture for a hydraulic matrix. The universal fixture comprises 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 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 a workpiece; the hydraulic cylinder is arranged on the base and drives the pull-down block to move up and down; at least two pull-down jaw assemblies are arranged side by side at intervals. At least two pull-down jaw assemblies are arranged corresponding to each hydraulic cylinder, and each hydraulic cylinder is matched to drive the pull-down blocks of the at least two pull-down jaw assemblies to move up and down at the same time through a lever mechanism, so that a plurality of workpieces can be clamped at the same time, the clamping efficiency is effectively improved, the number of the hydraulic cylinders can be greatly reduced, and the production cost is reduced. The internal structure of the clamp is looser and simpler, meanwhile, the overall manufacturing cost can be saved, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the field of clamp technology, in particular to a hydraulic matrix universal clamp. Background Art

[0002] A vise is a tool that uses a screw or other mechanism to move the two jaws relative to each other to clamp the workpiece. A vise is generally composed of a base, a clamp body, a fixed jaw and a movable jaw, and a transmission mechanism that moves the movable jaw. According to different occasions of use, there are bench vises and machine vises. Bench vises are installed on the bench workbench for the bench worker to clamp the workpiece for sawing, filing and other processing. Bench vises generally have high jaws and are arched, and the jaw body can be rotated and tightened on the base at will. Machine vises are a kind of machine tool accessories, also known as flat-nose pliers, and are generally installed on the workbench of machine tools such as milling machines, drilling machines, shapers and surface grinders. Compared with bench vises, machine vises have wide and low jaws, large clamping force, and high precision requirements. There are many types of machine vises, which can be divided into ordinary and precision types according to precision. Precision types are used for finishing machine tools such as surface grinders and boring machines. Machine vises can be divided into rotating type with base, fixed type without base and tiltable type according to their structure.

[0003] At present, there are hydraulic combination vises on the market, which can clamp the workpiece very well. Its main structure includes 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 includes 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.

[0004] However, in the prior art, one hydraulic cylinder drives one pull-down jaw assembly. If multiple workpieces need to be clamped, multiple hydraulic cylinders and multiple pull-down jaw assemblies need to be set, and multiple hydraulic cylinders drive multiple pull-down jaw assemblies to clamp multiple workpieces. The clamping efficiency is low, and the internal structure of the hydraulic combination vise becomes very crowded and complicated, while increasing the overall manufacturing cost of the hydraulic combination vise. Therefore, it is necessary to improve the current hydraulic combination vise. Utility Model Content

[0005] In view of this, the utility model aims to address the deficiencies in the prior art, and its main purpose is to provide a hydraulic matrix universal clamp that can effectively solve the problems of low clamping efficiency, crowded and complex internal structure and high manufacturing cost of the existing hydraulic combination vises.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hydraulic matrix universal clamp comprises 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 assemblies are at least two arranged side by side at intervals, and at least one fixed jaw assembly is arranged for each pull-down jaw assembly, and there is at least one hydraulic cylinder, and each hydraulic cylinder drives the pull-down blocks of at least two pull-down jaw assemblies to move up and down simultaneously through a lever mechanism.

[0008] As a preferred solution, there are two hydraulic cylinders, each of which is provided with two pull-down jaw assemblies. Each hydraulic cylinder drives the pull-down blocks of the two pull-down jaw assemblies to move up and down simultaneously through the aforementioned lever mechanism, so that more workpieces can be clamped simultaneously.

[0009] As a preferred solution, the lever mechanism includes a lever, a connecting rod and two lower pull rods. One end of the connecting rod is fixedly connected to the piston rod of the hydraulic cylinder, and the other end of the connecting rod is hinged to the middle part of the lever. The two lower pull rods extend vertically, and the upper ends of the two lower pull rods are respectively fixedly connected to the lower pull blocks of the two lower pull jaw assemblies, and the lower ends of the two lower pull rods are respectively hinged to the two end parts of the lever. The structure is simple and the clamping effect is better.

[0010] As a preferred solution, the base has a accommodating chamber, the hydraulic cylinder is fixed to the inner top of the accommodating chamber, the piston rod of the hydraulic cylinder faces downward, the lever is located below the hydraulic cylinder, and the two lower pull rods are respectively located on both sides of the hydraulic cylinder. The structure is compact and the workpiece can be clamped better.

[0011] As a preferred solution, return springs are provided between the bottoms of both ends of the lever and the inner bottom of the accommodating cavity so as to quickly return the lever upward.

[0012] As a preferred solution, the lower pull rod includes an equal-height screw and a equal-height nut sleeve. The upper end of the equal-height screw is fixedly connected to the lower pull block, the upper end of the equal-height nut sleeve is threadedly connected to the lower end of the equal-height screw, and the lower end of the equal-height nut sleeve is hinged to the end of the lever. The structure is simple and easy to assemble.

[0013] As a preferred solution, one end of the connecting rod is screwed and fixed to the piston rod of the hydraulic cylinder, and the other end of the connecting rod is hinged to the middle part of the lever through a first pin, which has a simple structure and is easy to assemble.

[0014] As a preferred solution, the lower ends of the two lower pull rods are respectively hinged to the two ends of the lever through second pins, which has a simple structure and is easy to assemble.

[0015] As a preferred solution, the pull-down jaw assembly has two translation blocks, which are respectively located on both sides of the pull-down block and are driven by the pull-down block to move horizontally back and forth simultaneously. Two fixed jaw assemblies are provided for each pull-down jaw assembly, and the two fixed jaw assemblies are respectively located on both sides of the pull-down jaw assembly. The two fixed jaw assemblies cooperate with the two translation blocks to clamp and lock the two workpieces, so that more workpieces can be clamped simultaneously.

[0016] As a preferred solution, an infusion connector and a plurality of spray heads are provided on the base, and the plurality of spray heads are all connected to the infusion connector. The plurality of spray heads are respectively located between the corresponding translation block and the corresponding fixed jaw assembly so as to spray coolant on the workpiece during processing.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0018] By providing 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 simultaneously 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, while also saving overall manufacturing costs and improving product competitiveness.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the assembly of the preferred embodiment of the utility model from another angle;

[0022] Figure 3 It is a partial exploded view of a preferred embodiment of the utility model;

[0023] Figure 4 It is a cross-sectional view of a preferred embodiment of the utility model;

[0024] Figure 5 It is another cross-sectional view of a preferred embodiment of the utility model.

[0025] Description of the accompanying drawings:

[0026] 10. Base 11. Pallet

[0027] 12. Equal height support plate 13. Base plate

[0028] 14. Tooth hanging block 141. First tooth

[0029] 142, strip through hole 15, sliding guide block

[0030] 101, accommodating cavity 102, positioning groove

[0031] 20. Pull-down jaw assembly 21. Translation block

[0032] 211. first base 212. first jaw member

[0033] 213, first bolt 22, pull-down block

[0034] 201, dovetail groove 202, dovetail block

[0035] 203, through hole 30, fixed jaw assembly

[0036] 31. Second base 311. Second teeth

[0037] 312, fixing hole 32, second jaw member

[0038] 33. Second bolt 34. Fixing bolt

[0039] 35. Fastening nut 301 quick jaws

[0040] 40. Hydraulic cylinder 41. Piston rod

[0041] 51. Manifold block 52. Gas line connector

[0042] 53. Oil line connector 54. Infusion connector

[0043] 55. Liquid spray head 60. Lever mechanism

[0044] 61. Lever 62. Connecting rod

[0045] 63, lower pull rod 631, equal height screw

[0046] 632, equal height nut sleeve 633, gasket

[0047] 634, disc spring 64, first pin

[0048] 65. Second pin 66. Return spring. DETAILED DESCRIPTION

[0049] Please refer to Figures 1 to 5 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a base 10, a pull-down jaw assembly 20, a fixed jaw assembly 30 and a hydraulic cylinder 40.

[0050] The base 10 has a housing cavity 101. Specifically, the base 10 includes a support plate 11, a plurality of equal-height support plates 12 and a base plate 13. The plurality of equal-height support plates 12 are arranged on the support plate 11 and connected end to end to form a frame. The base plate 13 is arranged on the frame and is surrounded by the frame to form the aforementioned housing cavity 101. Also, the surface of the base plate 13 is concavely provided with a plurality of positioning grooves 102 arranged at intervals from left to right. Each positioning groove 102 extends forward and backward. A tooth block 14 is embedded and fixed at both ends of each positioning groove 102. A first tooth 141 is formed on the surface of the tooth block 14. A strip-shaped through hole 142 is opened on the tooth block 14. A sliding guide block 15 is arranged on both sides of the middle of each positioning groove 102. Also, a confluence block 51 is arranged at the rear side of the base 10. An air circuit connector 52 and an oil circuit connector 53 are arranged on the confluence block 51.

[0051] The pull-down jaw assembly 20 is arranged on the base, and the pull-down jaw assembly 20 includes a translation block 21 and a pull-down block 22. The fixed jaw assembly 30 is arranged on the base 10 and cooperates with the translation block 21 to clamp and lock the workpiece; the hydraulic cylinder 40 is arranged on the base 10 and drives the pull-down block 22 to move up and down; the pull-down jaw assembly 20 is at least two arranged side by side at intervals, and at least one fixed jaw assembly 30 is arranged for each pull-down jaw assembly 20; there is at least one hydraulic cylinder 40, 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 at the same time through a lever mechanism 60.

[0052] In this embodiment, there are two hydraulic cylinders 40, and two pull-down jaw assemblies 20 are provided for each hydraulic cylinder 40. 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 the aforementioned lever mechanism 60. The pull-down jaw assembly 20 has two translation blocks 21, which are respectively located on both sides of the pull-down block 22 and are driven by the pull-down block 22 to move back and forth horizontally at the same time. Two fixed jaw assemblies 30 are provided for each pull-down jaw assembly 20, and the two fixed jaw assemblies 30 are respectively located on both sides of the pull-down jaw assembly 20. The two fixed jaw assemblies 30 cooperate with the two translation blocks 21 to clamp and lock the two workpieces to form a matrix arrangement structure.

[0053] Specifically:

[0054] A dovetail groove 201 is provided on the inner side of the translation block 21, and the dovetail groove 201 extends up and down in an inclined manner. Correspondingly, a dovetail block 202 is convexly provided on the outer side of the pull-down block 22, and the dovetail block 202 is slidably fitted with the dovetail groove 201, so that the pull-down block 22 moves up and down to drive the translation block 21 to slide back and forth horizontally. In this embodiment, the translation block 21 slides back and forth along the sliding guide block 15, and the sliding is more stable and accurate. In addition, the translation block 21 includes a first base 211 and a first jaw member 212 fixed on the first base 211, and the first jaw member 212 is fixed to the top outer edge of the first base 211 by a first bolt 213. In addition, a through hole 203 is provided through the upper and lower surfaces of the center of the pull-down block 22.

[0055] The fixed jaw assembly 30 can be placed on the tooth block 14 in a position that can be adjusted forward and backward and is fixedly connected to the tooth block 14. Specifically, the fixed jaw assembly 30 includes a second base 31 and a second jaw member 32 fixed to the second base 31, the second jaw member 32 is fixed to 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. In addition, the bottom surface of the second base 31 has second teeth 311, and the second teeth 311 are adapted to mesh with the first teeth 141. The second base 31 is provided with a fixing hole 312, and a fixing bolt 34 passes through the fixing hole 312 and the strip through hole 142 from top to bottom in sequence and is screwed and fixedly connected with a fixing nut 35, thereby locking the fixed jaw assembly 30 on the hanging tooth block 14. By loosening the fixing bolt 34 and the fixing nut 35, the second base 31 can be moved so that the second teeth 311 mesh with different first teeth 141, and then the fixing bolt 34 and the fixing nut 35 are tightened. In this way, the distance between the second jaw piece 32 and the corresponding first jaw piece 212 can be adjusted, so that the size of the quick jaw 301 can be adjusted at will according to the size of the workpiece, which is flexible and convenient to use.

[0056] The hydraulic cylinder 40 is fixed to the inner top of the accommodating chamber 101 , with the piston rod 41 of the hydraulic cylinder 40 facing downward. The hydraulic cylinder 40 is connected to the manifold 51 through an air pipe and an oil pipe.

[0057] The lever mechanism 60 includes a lever 61, a connecting rod 62 and two lower pull rods 63. One end of the connecting rod 62 is fixedly connected to the piston rod 41 of the hydraulic cylinder 40, and the other end of the connecting rod 62 is hinged to the middle of the lever 61. The two lower pull rods 63 extend vertically. The upper ends of the two lower pull rods 63 are respectively fixedly connected to the lower pull blocks 22 of the two lower pull jaw assemblies 20, and the lower ends of the two lower pull rods 63 are respectively hinged to the two ends of the lever 61. In this embodiment, the lever 61 is located below the hydraulic cylinder 40. One end of the connecting rod 62 is screwed and fixed to the piston rod 41 of the hydraulic cylinder 40, and the other end of the connecting rod 62 is hinged to the middle of the lever 61 through a first pin 64, which has a simple structure and is easy to assemble. The two lower pull rods 63 are respectively located on both sides of the hydraulic cylinder 40, and the lower ends of the two lower pull rods 63 are respectively hinged to the two ends of the lever 61 through a second pin 65, which has a simple structure and is easy to assemble. In addition, the pull-down rod 63 includes a height screw 631 and a height nut sleeve 632. The upper end of the height screw 631 is fixedly connected to the pull-down block 22, the upper end of the height nut sleeve 632 is screwed and connected to the lower end of the height screw 631, and the lower end of the height nut sleeve 632 is hinged to the end of the lever 61, which has a simple structure and is easy to assemble. In addition, the height screw 631 passes through the through hole 203 from top to bottom, and a gasket 633 and a disc spring 634 are clamped in the through hole 203 to clamp and fix the head of the height screw 631. In addition, a reset spring 66 is arranged between the bottom of both ends of the lever 61 and the inner bottom of the accommodating chamber 101, so that the lever 61 can be quickly reset upward.

[0058] In addition, an infusion connector 54 and a plurality of spray heads 55 are provided on the base 10. The plurality of spray heads 55 are all connected to the infusion connector 54. The plurality of spray heads 55 are respectively located between the corresponding translation block 21 and the corresponding fixed jaw assembly 30 so as to spray coolant on the workpiece during processing.

[0059] The working principle of this embodiment is described in detail as follows:

[0060] When in use, first, the utility model is fixed to the processing equipment, and the air circuit connector 52 and the oil circuit connector 53 are connected to the external hydraulic station. Then, the multiple workpieces to be processed are placed between the corresponding translation block 21 and the corresponding fixed jaw assembly 30. Then, the hydraulic station drives the hydraulic cylinder 40 to work, so that the piston rod 41 extends downward, and the piston rod 41 extends downward to drive the lever 61 to move downward, and then the lever 61 drives the two lower pull rods 63 to move downward. The lower pull rod 63 moves downward and pulls the lower blocks 22 of at least two lower pull jaw assemblies 20 to move downward. The lower blocks 22 of at least two lower pull jaw assemblies 20 move downward and drive the corresponding translation block 21 to slide horizontally and approach the corresponding fixed jaw assembly 30, so that multiple workpieces are clamped between the corresponding fixed jaw assembly 30 and the corresponding translation block 21 at the same time. At this time, multiple workpieces are clamped, and the processing equipment can be used to process multiple workpieces. When multiple workpieces are processed, the hydraulic station drives the hydraulic cylinder 40 to work again, so that the piston rod 41 retracts upward. The piston rod 41 retracts upward and cooperates with the action of the reset spring 66 to make the lever 61 move upward and reset quickly. The lever 61 then drives the two lower pull rods 63 to move upward. The lower pull rods 63 move upward and drive the lower pull blocks 22 of at least two lower pull jaw assemblies 20 to move upward. The lower pull blocks 22 of at least two lower pull jaw assemblies 20 move upward and drive the corresponding translation blocks 21 to slide horizontally in the opposite direction and away from the corresponding fixed jaw assembly 30, so that multiple workpieces can be released at the same time. At this time, multiple workpieces can be removed.

[0061] The design focus of the utility model is: 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 can greatly reduce the number of hydraulic cylinders, making the internal structure of the clamp more loose and simple, while also saving overall manufacturing costs and improving product competitiveness.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. 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; Features: There are at least two pull-down jaw assemblies arranged side by side at intervals, and at least one fixed jaw assembly is arranged for each pull-down jaw assembly. There is at least one hydraulic cylinder, and each hydraulic cylinder drives the pull-down blocks of at least two pull-down jaw assemblies to move up and down simultaneously through a lever mechanism.

2. The hydraulic matrix universal clamp according to claim 1, Features: There are two hydraulic cylinders, and each hydraulic cylinder is provided with two pull-down jaw assemblies. Each hydraulic cylinder drives the pull-down blocks of the two pull-down jaw assemblies to move up and down simultaneously through the aforementioned lever mechanism.

3. The hydraulic matrix universal clamp according to claim 2, Features: The lever mechanism includes a lever, a connecting rod and two lower pull rods, one end of the connecting rod is fixedly connected to the piston rod of the hydraulic cylinder, the other end of the connecting rod is hinged to the middle part of the lever, the two lower pull rods extend vertically, the upper ends of the two lower pull rods are respectively fixedly connected to the lower pull blocks of the two lower pull jaw assemblies, and the lower ends of the two lower pull rods are respectively hinged to the two end parts of the lever.

4. The hydraulic matrix universal clamp according to claim 3, Features: The base is provided with a containing cavity, the hydraulic cylinder is fixed to the inner top of the containing cavity, the piston rod of the hydraulic cylinder faces downward, the lever is located below the hydraulic cylinder, and the two lower pull rods are respectively located on both sides of the hydraulic cylinder.

5. The hydraulic matrix universal clamp according to claim 4, Features: Reset springs are arranged between the bottoms of both ends of the lever and the inner bottom of the accommodating cavity.

6. The hydraulic matrix universal clamp according to claim 3, Features: The lower pull rod includes a contour screw and a contour nut sleeve, the upper end of the contour screw is fixedly connected to the lower pull block, the upper end of the contour nut sleeve is threadedly connected to the lower end of the contour screw, and the lower end of the contour nut sleeve is hinged to the end of the lever.

7. The hydraulic matrix universal clamp according to claim 3, Features: One end of the connecting rod is screwed and fixed to the piston rod of the hydraulic cylinder, and the other end of the connecting rod is hinged to the middle part of the lever through a first pin.

8. The hydraulic matrix universal clamp according to claim 3, Features: The lower ends of the two lower pull rods are respectively hinged to the two ends of the lever through second pins.

9. The hydraulic matrix universal clamp according to claim 1, Features: The pull-down jaw assembly has two translation blocks, which are respectively located on both sides of the pull-down block and are driven by the pull-down block to move horizontally back and forth simultaneously. Two fixed jaw assemblies are provided for each pull-down jaw assembly, and the two fixed jaw assemblies are respectively located on both sides of the pull-down jaw assembly. The two fixed jaw assemblies cooperate with the two translation blocks to clamp and lock the two workpieces.

10. The hydraulic matrix universal clamp according to claim 1, Features: The base is provided with an infusion connector and a plurality of spray heads, which are all connected to the infusion connector, and the plurality of spray heads are respectively located between the corresponding translation block and the corresponding fixed jaw assembly.

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