阅读说明：本技术 一种夹模装置 (Die clamping device ) 是由 龙晓斌 曹敏 于 2019-11-05 设计创作，主要内容包括：本发明公开了一种夹模装置,包括安装板、气缸和分别具有上模座和下模座的一组夹模,夹模安装在安装板上,还包括一连杆组件,该连杆组件包括第一摆臂、第二摆臂和第一连接轴,所述第一摆臂和第二摆臂的第一端与第一连接轴枢接且可绕该第一连接轴转动,所述第一摆臂和第二摆臂的第二端分别安装在安装板上且可转动,所述第一摆臂和第二摆臂上分别设有压块,压块与上模座的上表面相抵,气缸的活塞杆与第一连接轴连接并可带动第一连接轴作上、下往复运动,从而带动所述第一摆臂和第二摆臂摆动,在所述第一摆臂和第二摆臂的摆动行程内,压块完成对上模座的松开或者下压动作。本发明具有气缸作用力范围大、适用范围广、作用效果较好,成本较低的优点。(The invention discloses a die clamping device, which comprises an installation plate, an air cylinder and a group of die clamps respectively provided with an upper die holder and a lower die holder, wherein the die clamps are arranged on the installation plate, the die clamps also comprise a connecting rod assembly, the connecting rod assembly comprises a first swing arm, a second swing arm and a first connecting shaft, the first ends of the first swing arm and the second swing arm are pivoted with the first connecting shaft and can rotate around the first connecting shaft, the second ends of the first swing arm and the second swing arm are respectively arranged on the mounting plate and can rotate, the first swing arm and the second swing arm are respectively provided with a pressing block, the pressing block is abutted against the upper surface of the upper die base, a piston rod of the air cylinder is connected with the first connecting shaft and can drive the first connecting shaft to do up-and-down reciprocating motion, so as to drive the first swing arm and the second swing arm to swing, and in the swing stroke of the first swing arm and the second swing arm, the pressing block finishes the action of loosening or pressing down the upper die holder. The invention has the advantages of large acting force range of the cylinder, wide application range, better acting effect and lower cost.)

1. The utility model provides a die clamping device, includes mounting panel (1), cylinder (2) and a set of die (3) that press from both sides that have upper die base (31) and die holder (32) respectively, die (3) are installed on mounting panel (1) to press from both sides, characterized in that still includes a link assembly (4), and this link assembly (4) include first swing arm (41), second swing arm (42) and first connecting axle (43), the first end and the first connecting axle (43) pin joint of first swing arm (41) and second swing arm (42) and can rotate around this first connecting axle (43), the second end of first swing arm (41) and second swing arm (42) is installed respectively on mounting panel (1) and rotatable, first swing arm (41) and second swing arm (42) are equipped with briquetting (44) respectively, briquetting (44) and the upper surface counterbalance of upper die base (31), and piston rod (21) of cylinder (2) are connected with first connecting axle (43) and can drive first connecting axle (43) The upper die holder (31) is driven to swing by reciprocating up and down, so that the first swing arm (41) and the second swing arm (42) are driven to swing, and the pressing block (44) completes the loosening or pressing action on the upper die holder (31) in the swinging stroke of the first swing arm (41) and the second swing arm (42).

2. The die clamping device of claim 1, wherein a mounting hole (310) is formed in the upper die holder (31), a return spring (5) is arranged in the mounting hole (310), and a first end of the return spring (5) abuts against the upper die holder (31) and a second end abuts against the lower die holder (32).

3. The die clamping device according to claim 1 or 2, wherein the lower edges of the second ends of the first swing arm (41) and the second swing arm (42) are further respectively provided with a pressing wheel (6), and the lower edges of the second ends of the first swing arm (41) and the second swing arm (42) are abutted against the upper surface of the upper die base (31) through the pressing wheel (6).

4. A die clamping device according to claim 1 or 2, wherein the second ends of the first swing arm (41) and the second swing arm (42) are respectively mounted on the mounting plate 1 through a second connecting shaft (40), and the first swing arm (41) and the second swing arm (42) are rotatable around the second connecting shaft (40).

Technical Field

The invention relates to the field of die clamping devices, in particular to a die clamping device.

Background

At present, the structure of the die clamping device of the cutting machine is shown in fig. 1, and the die clamping device specifically includes a supporting table 900, an air cylinder 100, a die clamp 200 and a connecting plate 300, a first surface of the connecting plate 300 is installed at a piston rod end of the air cylinder 100 and is driven by the piston rod to reciprocate, the die clamp 200 includes an upper die clamp 201 and a lower die clamp 202 matched with the upper die clamp 201, the upper die clamp 201 is installed on a second surface of the connecting plate 300, the piston rod of the air cylinder 100 drives the connecting plate 300 to reciprocate up and down, so as to drive the upper die clamp 201 to reciprocate up and down to open or close the die clamp 200, thereby realizing the loosening and clamping of the die.

However, in the mold clamping device in the prior art, the acting force effect of the cylinder 100 in the design is poor, the acting force range is small, and for the mold clamping device requiring a larger thrust force, a cylinder with a larger thrust force is required, and even an additional cylinder is required. Therefore, the cylinder designed in the prior art has the advantages of small acting force range, narrow application range, poor acting effect and higher cost.

Disclosure of Invention

The invention aims to provide a die clamping device which has the advantages of larger acting force range of an air cylinder, wider application range, better acting effect and lower cost.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a die clamping device, includes mounting panel, cylinder and the a set of die holder that has upper die base and die holder respectively, die holder installs on the mounting panel, still includes a link assembly, and this link assembly includes first swing arm, second swing arm and first connecting axle, the first end of first swing arm and second swing arm and first connecting axle pin joint just can rotate around this first connecting axle, be equipped with the briquetting on first swing arm and the second swing arm respectively, the briquetting offsets with the upper surface of upper die base, and the piston rod of cylinder is connected with first connecting axle and can drives first connecting axle and make upper and lower reciprocating motion, thereby drives first swing arm and the swing of second swing arm in the swing stroke of first swing arm and second swing arm, the briquetting is accomplished and is pressed down the action to the loosening of upper die base.

As an improvement of the invention, a mounting hole is arranged in the upper die base, a return spring is arranged in the mounting hole, and the first end of the return spring is abutted against the upper die base while the second end is abutted against the lower die base.

As an improvement of the invention, the lower edges of the second ends of the first swing arm and the second swing arm are respectively provided with a pinch roller, and the lower edges of the second ends of the first swing arm and the second swing arm are abutted against the upper surface of the upper die holder through the pinch rollers.

As an improvement of the invention, the second ends of the first swing arm and the second swing arm are respectively arranged on the mounting plate through second connecting shafts, and the first swing arm and the second swing arm can rotate around the second connecting shafts.

The die holder comprises a mounting plate, an air cylinder and a group of clamping dies which are respectively provided with an upper die holder and a lower die holder, wherein the clamping dies are mounted on the mounting plate, the die holder also comprises a connecting rod assembly, the connecting rod assembly comprises a first swing arm, a second swing arm and a first connecting shaft, the first ends of the first swing arm and the second swing arm are pivoted with the first connecting shaft and can rotate around the first connecting shaft, pressing blocks are respectively arranged on the first swing arm and the second swing arm and abut against the upper surface of the upper die holder, a piston rod of the air cylinder is connected with the first connecting shaft and can drive the first connecting shaft to do up-and-down reciprocating motion so as to drive the first swing arm and the second swing arm to swing, and the pressing blocks finish the loosening or pressing action of the upper die holder in the swinging stroke of the first swing arm and the second swing arm. Compared with the prior art, when the clamping die needs larger thrust to be closed, the acting force range of the air cylinder is larger due to the adoption of the connecting rod assembly, and one air cylinder can meet different thrust requirements. Therefore, the invention has the advantages of large acting force range of the cylinder, wide application range, better acting effect and lower cost.

Drawings

FIG. 1 is a schematic plan view of a mold clamping device in the prior art;

FIG. 2 is a schematic perspective view of the closed state of the clamping mold according to the present invention;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a schematic perspective view of the open state of the clamping mold according to the present invention;

fig. 5 is a front view of fig. 4.

Detailed Description

The invention will be further described with reference to the accompanying drawings and the detailed description below:

fig. 2 to 5 disclose an embodiment of a die clamping device, which includes a mounting plate 1, a cylinder 2, and a set of die clamps 3 having an upper die holder 31 and a lower die holder 32, respectively, wherein the die clamps 3 are mounted on the mounting plate 1, and further includes a link assembly 4, the link assembly 4 includes a first swing arm 41, a second swing arm 42, and a first connecting shaft 43, in this embodiment, specifically, two sets of the first swing arm 41 and the second swing arm 42 are respectively provided, first ends of the first swing arm 41 and the second swing arm 42 are pivotally connected to the first connecting shaft 43 and can rotate around the first connecting shaft 43, second ends of the first swing arm 41 and the second swing arm 42 are respectively mounted on the mounting plate 1 and can rotate, in this embodiment, two sets of the first swing arm 41 and the second swing arm 42 are respectively disposed on front and rear sides of the mounting plate 1, and the front and rear swing arms are symmetrically disposed with the mounting plate 1 as a center, in the present invention, it is preferable that the second ends of the first swing arm 41 and the second swing arm 42 are mounted on the mounting plate 1 through a second connecting shaft 40, and the first swing arm 41 and the second swing arm 42 are rotatable about the second connecting shaft 40. Specifically, the first swing arms 41 and the second swing arms 42 are respectively mounted on the mounting plate 1 through second connecting shafts 40, the two first swing arms 41 are mounted on the same second connecting shaft 40, the two first swing arms 41 can rotate around the second connecting shaft 40, the two second swing arms 42 are mounted on the same second connecting shaft 40, and the two second swing arms 42 can rotate around the second connecting shaft 40; the first swing arm 41 and the second swing arm 42 are respectively provided with a pressing block 44, the pressing block 44 abuts against the upper surface of the upper die holder 31, the piston rod 21 of the cylinder 2 is connected with the first connecting shaft 43 and can drive the first connecting shaft 43 to reciprocate up and down, so as to drive the first swing arm 41 and the second swing arm 42 to swing, and in the swing stroke of the first swing arm 41 and the second swing arm 42, the pressing block 44 completes the action of loosening or pressing down the upper die holder 31. When the upper die holder 31 presses the lower die holder 32 downwards, the clamp die 3 is closed; when the present invention is used, the air cylinder 2 is started, the piston rod 21 of the air cylinder 2 extends downward, because the piston rod 21 of the air cylinder 2 is connected with the first connecting shaft 43, the piston rod 21 moves downward to drive the first connecting shaft 43 to move downward (the direction shown as a in fig. 3 is the direction in which the piston rod 21 moves), the first ends of the first swing arm 41 and the second swing arm 42 are pivotally connected with the first connecting shaft 43 and can rotate around the first connecting shaft 43, the second ends of the first swing arm 41 and the second swing arm 42 are respectively mounted on the mounting plate 1 and can rotate, so that the first swing arm 41 swings clockwise (the direction shown as B1 in the figure), the second swing arm 42 swings counterclockwise (the direction shown as B2 in the figure), so that the pressing block 44 of the first swing arm 41 and the second swing arm 42 presses downward on the upper surface of the upper die holder 31, and the upper die holder 31 is forced to move towards the lower die holder 32 and is contacted with the lower die holder 32 to realize die assembly when the upper die holder 31 presses downwards and moves back to the same direction (such as directions of C1 and C2 in the figure). In the present invention, the upper die holder 31 is provided with the mounting hole 310, the mounting hole 310 is provided with the return spring 5, and the first end of the return spring 5 abuts against the upper die holder 31, and the second end abuts against the lower die holder 32, in this embodiment, specifically, the return spring 5 abuts against the upper surface of the lower die holder 32, in the present invention, the return spring 5 may be provided in the lower die holder 32, and the upper end of the return spring abuts against the upper die holder, or may be provided that a part of the return spring is provided in the lower die holder 32, and a part of the return spring is provided in the upper die holder, as long as the return spring 5 is ensured to be capable of resetting the upper die holder 31 and the lower die holder 32. When the mold is opened, the piston rod 21 of the cylinder 2 is retracted, that is, the piston rod 21 of the cylinder 2 moves upward (the direction of a ' in fig. 5), at this time, under the action of the piston rod 21, the first swing arm 41 swings counterclockwise (the direction of B1 ' in the drawing), and the second swing arm 42 swings clockwise (the direction of B2 ' in the drawing), so that the pressing blocks 44 of the first swing arm 41 and the second swing arm 42 move upward and move relative to each other (the directions of C1 ' and C2 ' in the drawing), at this time, the upper mold base 31 moves upward and away from the lower mold base 32 under the action of the return spring 5, and separates from the lower mold base 32, thereby opening the mold. Compared with the prior art, when the clamping die needs larger thrust to close the die, the invention has larger acting force range of the cylinder due to the use of the connecting rod assembly, and one cylinder 2 can meet different thrust requirements. The air cylinder has the advantages of large acting force range, wide application range, good acting effect and low cost.

In the present invention, it is preferable that pressing wheels 6 are further respectively installed at the pressing blocks 44 of the first swing arm 41 and the second swing arm 42, and the pressing blocks 44 of the first swing arm 41 and the second swing arm 42 are abutted against the upper surface of the upper die base 31 through the pressing wheels 6, and in the present invention, the pressing wheels 6 are provided to reduce the friction between the pressing blocks 44 of the first swing arm 41 and the second swing arm 42 and the upper surface of the upper die base 31, so that the pressing blocks 44 of the first swing arm 41 and the second swing arm 42 can better move on the upper surface of the upper die base 31.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.