CN211219239U

CN211219239U - Clamping device for precision cutting workpiece

Info

Publication number: CN211219239U
Application number: CN201922433216.8U
Authority: CN
Inventors: 王海斌; 王远旗; 吴松; 胡锦
Original assignee: Jiangsu Lexi Laser Technology Co ltd
Current assignee: Jiangsu Lexi Laser Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-11
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a clamping device of precision cutting work piece, it includes that parallel fixes two guide rails and at least two anchor clamps bases that move on two guide rails in the workstation both sides, every anchor clamps base includes the base plate respectively, two sliding seats, the work piece compresses tightly apron and die clamping cylinder, two sliding seats of every anchor clamps base slide the assembly respectively on two guide rails, the base plate is fixed to be assembled between two sliding seats, die clamping cylinder's cylinder body is fixed in the below of base plate, die clamping cylinder's piston rod upwards sets up and upwards wears out from the base plate, the work piece compresses tightly the top that the apron is located the base plate and is the same with base plate extending direction, die clamping cylinder's piston rod upper end compresses tightly apron fixed connection with the work piece. When a workpiece is clamped, the piston rod of the air cylinder moves downwards to enable the workpiece to be clamped between the workpiece pressing cover plate and the base plate, clamping and positioning of two sides of the workpiece are achieved through the two clamp bases respectively, and clamping and fixing of the workpiece can be achieved through any two adjacent clamp bases.

Description

Clamping device for precision cutting workpiece

Technical Field

The utility model relates to a clamping device of precision cutting work piece belongs to precision cutting machine technical field.

Background

In the prior art, no matter be accurate laser cutting machine or traditional laser cutting workstation in the cutting of panel, just place panel on the full rack lathe bed, then provide panel and lean on a fixture locating piece to fix a position and fix panel in the X, Y direction, this kind of panel locate mode has following problem: (1) the plate is easily deformed and warped to damage the cutting head when being heated in the cutting process, and the cutting head is easily contacted with a clamp positioning block in a cutting area, so that an operator is forced to excessively retain the material to waste the plate; (2) the fixture positioning block is fixed, a plate is limited in one station, machining efficiency is influenced, the large workpiece and the small workpiece are all used in one station, and the universality is poor.

Disclosure of Invention

An object of the utility model is to provide a clamping device of accurate cutting work piece that is fit for not equidimension work piece and uses.

The utility model adopts the following technical scheme: clamping device of precision cutting work piece, it includes that parallel fixes two guide rails and at least two anchor clamps bases that move on two guide rails of workstation both sides, every anchor clamps base includes the base plate respectively, two sliding seats, the work piece compresses tightly apron and die clamping cylinder, two sliding seats of every anchor clamps base slide assembly respectively on two guide rails, the base plate is fixed to be assembled between two sliding seats, die clamping cylinder's cylinder body is fixed in the below of base plate, die clamping cylinder's piston rod upwards sets up and upwards wears out from the base plate, the work piece compresses tightly the apron and is located the top of base plate and the same with base plate extending direction, die clamping cylinder's piston rod upper end compresses tightly apron fixed connection with the work piece.

In each clamp base, an included angle of 3-5 degrees is formed between the bottom surface of the workpiece pressing cover plate and the upper surface of the base plate in the moving direction of the guide rail.

And the workpiece pressing cover plate is provided with reference scale marks.

And the sliding seat is provided with a puller bolt which is used for being tightly propped on the guide rail.

The sliding seat is fixedly connected with the base plate through bolts.

The number of the clamping cylinders on the base plate of each group of the clamp bases is more than two.

The number of the clamp bases is four.

The utility model has the advantages that: the utility model discloses set up the anchor clamps base more than two, arbitrary two adjacent anchor clamps bases can all realize the tight fixedly of clamp of work piece, therefore a plurality of anchor clamps bases of n can form n-1 clamping station (n is more than or equal to 2's integer) at most. When a workpiece is clamped, the workpiece pressing cover plate moves upwards through the upward action of the air cylinder piston rod, so that the workpiece is placed between the workpiece pressing cover plate and the base plate, the air cylinder piston rod moves downwards to enable the workpiece to be clamped between the workpiece pressing cover plate and the base plate, and the two sides of the workpiece are clamped and positioned through the two clamp bases respectively; the adjustment of the size of the clamping breadth of the working position is realized by moving the sliding seat on the guide rail, and workpieces with different sizes can be used. Realize the all standing centre gripping to the work piece both sides through two anchor clamps bases, avoid the wane, can reduce the centre gripping clout simultaneously, can also avoid prior art's locating piece and cutting head collision to arouse the collision and report to the police and can't cut, make to stay the too big extravagant panel of material.

Preferably, the workpiece is pressed to form an included angle of 3-5 degrees between the bottom surface of the cover plate and the upper surface of the base plate, so that the workpiece is clamped only at the edge, and the clamping excess material is smaller than 2mm or even smaller.

Preferably, a clamping reference is provided for repeated clamping of multiple workpieces through reference scale marks on the workpiece pressing cover plate.

Preferably, the puller bolt can generate a force on the sliding seat, so that the clamp base is prevented from displacing after the workpiece is clamped.

Preferably, four fixture bases can basically meet the current production needs, and two pairs of four fixture bases are matched to form two clamping stations which are not influenced mutually.

Drawings

Fig. 1 is a diagram illustrating a state of use of a clamping device for precision cutting of a workpiece according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a plan view of FIG. 1;

fig. 4 is a schematic structural view of the jig base of fig. 1.

In the figure, 1-a guide rail, 2-a base plate, 3-a sliding seat, 4-a workpiece pressing cover plate, 5-a clamping cylinder, 51-a cylinder body, 52-a piston rod, 6-a reference scale mark, 7-a puller bolt, 8-a workpiece, 9-a laser cutting head, 10-a machine tool Y-axis transmission assembly and 11-a machine tool X-axis transmission assembly.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The utility model relates to a clamping device of precision cutting work piece's of embodiment structure is as shown in fig. 1 to fig. 4, it includes that parallel fixation is at two guide rails 1 of workstation both sides and four anchor clamps bases that move on two guide rails, every anchor clamps base includes base plate 2 respectively, two sliding seat 3, the work piece compresses tightly apron 4 and die clamping cylinder 5, two sliding seat 3 of every anchor clamps base slide the assembly respectively on two guide rails 1, base plate 2 fixed mounting is between two sliding seat 3, die clamping cylinder 5's cylinder body 51 is fixed in the below of base plate 2, die clamping cylinder 5's piston rod 52 upwards sets up and upwards wears out from base plate 2, the work piece compresses tightly the apron 4 and is located base plate 2's top and the same with base plate 2 extending direction, die clamping cylinder 5's piston rod 52 upper end compresses tightly apron 4 fixed connection with the work piece. In this embodiment, the number of the air cylinders 5 on the substrate 1 of each set of the jig bases is three.

In each jig base, an angle of 3 to 5 ° is formed between the bottom surface of the work pressing cover plate 4 and the upper surface of the base plate 2 in the moving direction of the guide rail 1. And the workpiece pressing cover plate 4 is provided with reference scale marks 6. And a jacking bolt 7 for jacking on the guide rail is arranged on the sliding seat 3. The sliding seat 3 is fixedly connected with the base plate 2 through bolts.

The clamping device of the embodiment comprises three clamping stations, and any two adjacent clamp bases can be combined to clamp and fix a workpiece; the four clamp bases can be matched with each other two by two to form two clamping stations which are not influenced mutually. The breadth size of each clamping station can be flexibly adjusted by adjusting the position of the sliding seat on the guide rail, the clamp base is fixed by screwing the adjusting bolt after the adjustment is completed, the three clamping cylinders drive the workpiece pressing cover plate to fully cover and hold one side of the workpiece, so that the warping plate is avoided, the workpiece pressing cover plate and the base plate have an included angle of 3-5 degrees (the included angle is very small, so that the included angle is not shown in the attached drawing), the clamping excess material is smaller than 2mm or even smaller, and the phenomenon that the collision of a positioning block and a cutting head causes collision alarm and the excessive waste plate material can not be cut to enable the remaining material to be cut is. The workpiece pressing cover plate is carved with reference scale lines to provide a clamping reference for repeated clamping of multiple workpieces. And the clamping of each station is not influenced mutually, and the other two stations clamp the workpiece.

The above embodiment is a preferred embodiment of the present invention, and in other embodiments of the present invention, the clamp base may have more than two arbitrary values; the number of the clamping cylinders on the base plate of each group of the clamp bases is more than two arbitrary values.

In other embodiments of the present invention, the bottom surface of the workpiece pressing cover plate and the upper surface of the base plate may be planes parallel to the horizontal plane.

The foregoing embodiments and description have been provided to illustrate the principles of the invention and, without departing from the spirit and scope of the invention, there are various changes and modifications that fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Clamping device of precision cutting work piece, its characterized in that: the fixture comprises two guide rails which are fixed on two sides of a workbench in parallel and at least two fixture bases which move on the two guide rails, each fixture base comprises a base plate, two sliding seats, a workpiece pressing cover plate and a clamping cylinder, the two sliding seats of each fixture base are assembled on the two guide rails in a sliding mode respectively, the base plates are fixedly assembled between the two sliding seats, a cylinder body of the clamping cylinder is fixed below the base plate, a piston rod of the clamping cylinder upwards penetrates out of the base plate, the workpiece pressing cover plate is located above the base plate and is the same as the extending direction of the base plate, and the upper end of the piston rod of the clamping cylinder is fixedly connected with the workpiece pressing cover plate.

2. The clamping device for precision cutting of a workpiece according to claim 1, wherein: in each clamp base, an included angle of 3-5 degrees is formed between the bottom surface of the workpiece pressing cover plate and the upper surface of the base plate in the moving direction of the guide rail.

3. The clamping device for precision cutting of a workpiece according to claim 1, wherein: and the workpiece pressing cover plate is provided with reference scale marks.

4. The clamping device for precision cutting of a workpiece according to claim 1, wherein: and the sliding seat is provided with a puller bolt which is used for being tightly propped on the guide rail.

5. The clamping device for precision cutting of a workpiece according to claim 1, wherein: the sliding seat is fixedly connected with the base plate through bolts.

6. The clamping device for precision cutting of a workpiece according to claim 1, wherein: the number of the clamping cylinders on the base plate of each group of the clamp bases is more than two.

7. The clamping device for precision cutting of a workpiece according to claim 1, wherein: the number of the clamp bases is four.