CN205271509U - Table vice - Google Patents

Abstract

The utility model discloses a bench vise, which comprises a support and two identical jaws. An isosceles trapezoidal notch is opened on the upper end of the support; one side of the two jaws is provided with a slope and is in contact with the slope on the gap respectively. Coordination; two pressure plates are fixedly connected to the front and back of the support and the two jaws are limited in the middle of the four pressure plates; there is a sliding guide structure between the pressure plate and the jaws; The upper ends of the rods are assembled together to form a first rotating hinge; the lower end of the other jaw is assembled with the upper end of the second connecting rod to form a second rotating hinge; the lower end of the first connecting rod and the lower end of the second connecting rod are assembled with the support frame A third rotating hinge is formed; when the piston rod on the cylinder device moves, the first connecting rod and the second connecting rod are respectively driven by the third rotating hinge so that the two jaws are moved closer to each other or separated. The utility model can automatically realize fast clamping and fast release bench vise.

Description

a bench vise

technical field

The utility model relates to a bench vise, in particular to a clamping tool that can be used for a machine tool that does not need to rotate a workpiece.

Background technique

At present, the commonly used bench vices are all manually operated. The handle of the bench vice is connected to the screw rod, and the screw rod is driven to rotate by turning the handle, so that one jaw screwed on the screw rod moves closer to the other jaw, thereby realizing Clamping and fixing function. This bench vise is purely manual operation, the work efficiency is very low, the labor intensity is high, and it is not suitable for the needs of batch quick operation. In actual production, machine tools, milling machines, and machining centers that lower blanks or drill central holes for blanks all need a quick clamping and quick release bench vise.

Utility model content

The utility model solves the defects of low clamping efficiency and high labor intensity in the prior art, and provides a bench vice that can automatically realize quick clamping and quick release.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a bench vise, including a support and two symmetrical jaws, the support is an H-shaped structure formed by combining two vertical plates and a horizontal plate Bracket structure; two pressure plates are symmetrically fixedly connected on both sides of the inner side of the upper end of the support; the pressure plate is matched with the jaws to form an inclined sliding guide structure; the protrusion at the lower end of the left jaw is connected to the first The upper ends of the connecting rods are assembled together to form a first rotating hinge; the protrusion at the lower end of the right jaw and the upper end of the second connecting rod are assembled together to form a second rotating hinge; the bottom end of the horizontal plate is fixed with a cylinder device The piston rod gap on the cylinder device passes through the first through hole in the middle of the horizontal plate; the piston rod is fixedly connected with a support frame; the lower end of the first connecting rod, the lower end of the second connecting rod and the support The frames are assembled together to form a third rotating hinge; when the piston rod moves, the first connecting rod and the second connecting rod are respectively driven by the third rotating hinge so that the two jaws slide obliquely on the inclined sliding guide structure to realize mutual move closer or apart.

Preferably, the sliding guide structure is composed of an inclined T-shaped notch on the pressing plate and an inclined T-shaped protrusion on the jaw, and the inclined T-shaped protrusion is inserted into the inclined T-shaped notch.

As a preference, the upper ends of the two risers on the support are provided with second through holes, which first cooperate with the threaded holes on the pressure plate, and are fixedly connected together by screws.

As a preference, the lower end of the jaw has two parallel protrusions; the upper end of the first connecting rod is inserted into the middle of the two protrusions of the left jaw; the first pin passes through the first connection The upper end of the rod and the two protrusions on the left jaw are assembled together to form a first rotating hinge; the upper end of the second connecting rod is inserted into the middle of the two protrusions on the right jaw; the second pin shaft passes through The upper end of the second connecting rod and the two protrusions on the right jaw are assembled together to form a second rotating hinge; the support frame is a Y-shaped frame structure; the lower end of the first connecting rod is provided with a gap; the The lower end of the second connecting rod is provided with a step; the step gap is inserted into the middle of the gap; the lower end of the first connecting rod is inserted into the middle of the support frame; the third pin shaft passes through the support frame, the first connecting rod, The second connecting rods fit together to form a third rotary hinge.

Preferably, a second threaded hole is provided on the lower end surface of the support frame and is fixedly connected with the external thread on the upper end of the piston rod.

The beneficial effects of the utility model are:

1. The cylinder is used as the power for rapid displacement of the jaws, which can automatically realize rapid clamping and rapid release, which greatly improves the working efficiency of the vise and reduces the labor intensity of the operators.

2. Adopt sliding guide structure, slide rail is fixed, the work is stable, the workpiece clamping process is stable and firm, and the structure is simple and easy to install, which makes the vise widely used.

3. The pressure plate is fixed on the support by screws, which is convenient for installation, replacement and disassembly.

4. The support frame and the piston rod are fixed by threads, which is convenient for installation and adjustment of the direction of the support frame.

Description of drawings

Fig. 1 is a front view of a specific embodiment of a bench vise of the present invention.

Fig. 2 is a perspective view of a specific embodiment of a bench vise of the present invention.

Fig. 3 is a schematic diagram of a support structure of a specific embodiment of a bench vise of the present invention.

Fig. 4 is a structural schematic diagram of a pressing plate of a specific embodiment of a bench vise of the present invention.

Fig. 5 is a schematic diagram of the jaw structure of a specific embodiment of the bench vise of the present invention.

Fig. 6 is a structural schematic diagram of the first rotary hinge of a specific embodiment of the bench vise of the present invention.

Fig. 7 is a structural schematic diagram of the second rotating hinge of a specific embodiment of a bench vise of the present invention.

Fig. 8 is a structural schematic diagram of the second rotary hinge of a specific embodiment of a bench vise of the present invention.

Fig. 9 is a cross-sectional view of the fixed connection position between the support frame and the piston rod of a specific embodiment of the bench vise of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

As shown in Figures 1 to 9, a bench vise includes a support 1 and two symmetrical jaws 3. The support 1 is an H formed by combining two vertical plates 1a and a horizontal plate 1b. Type bracket structure; two pressure plates 2 are symmetrically fixedly connected on both sides of the inner side of the upper end of the support 1; the pressure plate 2 and the jaw 3 cooperate to form an inclined sliding guide structure; the lower end of the left jaw 3 The protrusion 3b of the upper end of the first connecting rod 4 is assembled together to form a first rotating hinge; the protrusion 3b at the lower end of the right jaw 3 is assembled with the upper end of the second connecting rod 5 to form a second rotating hinge; The bottom end of the horizontal plate 1b is fixed with a cylinder device 8; the gap between the piston rod 7 on the cylinder device 8 passes through the first through hole 1c in the middle of the horizontal plate 1b; the piston rod 7 is fixedly connected with a support frame 6; the lower end of the first connecting rod 4 and the lower end of the second connecting rod 5 are assembled with the support frame 6 to form a third rotating hinge; when the piston rod 7 moves, the first connecting rod is driven by the third rotating hinge 4 and the second connecting rod 5 so that the two jaws 3 slide obliquely on the inclined sliding guide structure to achieve mutual closeness or separation;

The sliding guide structure is composed of the inclined T-shaped notch 2a on the pressure plate 2 and the inclined T-shaped protrusion (3a) structure on the jaw 3, and the inclined T-shaped protrusion 2a is inserted into the inclined T-shaped notch in a gap 3a;

The upper end of the two vertical plates 1a on the support 1 is provided with a second through hole 1d, which is matched with the first threaded hole 2b on the pressure plate 2, and is fixedly connected together by screws 9;

The lower end of the jaw (3) has two parallel protrusions 3b; the upper end of the first connecting rod 4 is inserted into the middle of the two protrusions 3b of the left jaw 3; the first pin shaft 10 Pass through the two protrusions 3b on the upper end of the first connecting rod 4 and the left jaw 3 to form a first rotating hinge; In the middle of the two protrusions 3b; the second pin shaft 11 passes through the upper end of the second connecting rod 5 and the two protrusions 3b of the right side jaw 3 fit together to form a second rotating hinge; the support frame 6 is Y-shaped frame structure; the lower end of the first connecting rod 4 is provided with a gap 4a; the lower end of the second connecting rod 5 is provided with a step 5a; the gap of the step 5a is inserted into the middle of the gap 4a; the first connection The lower end of the rod 4 is inserted into the middle of the support frame 6; the third pin shaft 12 passes through the support frame 6, the first connecting rod 4, and the second connecting rod 5 to form a third rotating hinge;

The lower end surface of the support frame 6 is provided with a hole of the second thread 6a, which is fixedly connected with the external thread 7a on the upper end of the piston rod.

When in use, start the cylinder device 8 to move the piston rod 7 upwards, and drive the first connecting rod 4 and the second connecting rod 5 to move upwards through the third rotating hinge, so that the two jaws 3 slide obliquely upward through the inclined plane sliding guide structure When the cylinder device 8 is activated to move the piston rod 7 downward, the first connecting rod 4 and the second connecting rod 5 are respectively driven downward through the third rotating hinge, so that the two jaws 3 pass through the inclined plane. The sliding guide structure slides obliquely upwards to separate from each other to release the workpiece.

The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .

Claims (5)

1. A bench vise, comprising a support (1), two symmetrical jaws (3), is characterized in that: the support (1) is composed of two vertical plates (1a) and a horizontal plate (1b) An H-shaped bracket structure formed by combination; two pressure plates (2) are symmetrically fixedly connected on both sides of the inner side of the upper end of the support (1); the pressure plate (2) is matched with the jaws (3) Form an inclined sliding guide structure; the protrusion (3b) at the lower end of the left jaw (3) is assembled with the upper end of the first connecting rod (4) to form a first rotary hinge; the right jaw (3) ) the lower end of the protrusion (3b) and the second connecting rod (5) upper end are assembled together to form a second rotary hinge; the bottom end of the horizontal plate (1b) is fixed with a cylinder device (8) to fix; the cylinder device The gap between the piston rod (7) on (8) passes through the first through hole (1c) in the middle of the horizontal plate (1b); the described piston rod (7) is fixedly connected with the support frame (6); the described first The lower end of a connecting rod (4), the lower end of the second connecting rod (5) and the support frame (6) are assembled together to form a third rotating hinge; when the piston rod (7) moves, the first connecting rod is respectively driven by the third rotating hinge. The rod (4) and the second connecting rod (5) make the two jaws (3) slide obliquely on the inclined-plane sliding guide structure to realize mutual closeness or separation. 2. A bench vise as claimed in claim 1, characterized in that: the sliding guide structure is composed of the inclined plane T-shaped notch (2a) on the pressure plate (2) and the inclined plane T on the jaw (3). T-shaped protrusion (3a) structure, the inclined T-shaped protrusion (2a) is inserted into the inclined T-shaped notch (3a). 3. A bench vise as claimed in claim 1, characterized in that: the upper ends of the two vertical plates (1a) on the support (1) are provided with a second through hole (1d) and are connected with the pressure plate (2 ) on the first threaded hole (2b) and are fixedly connected together by screws (9). 4. A bench vise as claimed in claim 1, characterized in that: the lower end of the jaw (3) has two parallel protrusions (3b); the upper end of the first connecting rod (4) The gap is inserted between the two protrusions (3b) of the left jaw (3); the first pin shaft (10) passes through the upper end of the first connecting rod (4) and the two protrusions on the left jaw (3) (3b) assembled together to form a first rotary hinge; the upper end gap of the second connecting rod (5) is inserted into the middle of the two protrusions (3b) of the right jaw (3); the second pin shaft (11) passes through The two protrusions (3b) of the upper end of the second connecting rod (5) and the right jaw (3) are fitted together to form a second rotary hinge; the support frame (6) is a Y-shaped frame structure; the The lower end of the first connecting rod (4) is provided with a gap (4a); the lower end of the second connecting rod (5) is provided with a step (5a); the gap between the step (5a) is inserted into the middle of the gap (4a); the The lower end gap of the first connecting rod (4) is inserted into the middle of the support frame (6); the third pin shaft (12) is assembled through the support frame (6), the first connecting rod (4), and the second connecting rod (5) Together form a third rotary hinge. 5. A bench vise as claimed in claim 1, characterized in that: the lower end surface of the support frame (6) is provided with a second threaded (6a) hole and is connected with the external thread (7a) on the upper end of the piston rod. Mate fixedly connected together.