CN219881877U - Clamp - Google Patents

Abstract

The utility model relates to the technical field of workpiece clamping devices, in particular to a clamp. Including the bottom plate, the bottom plate upper surface is provided with the boss, be provided with first recess and the second recess that are used for holding two risers respectively on the boss, be provided with in the first recess and compress tightly a riser and be close to the clamp plate by power unit driven on the lateral wall of second recess, the bottom surface of second recess is provided with the third recess in one side of keeping away from first recess, sliding connection has the lifter plate in the third recess, be provided with the spring between the bottom surface of third recess and the bottom surface of lifter plate, the top surface of lifter plate is provided with the jack-post, and the rotation axis is connected and its one end that is located the second recess is provided with the lug that can push down the lifter plate with the boss rotation. The utility model can conveniently clamp the workpiece.

Description

Clamp

Technical Field

The utility model relates to the technical field of workpiece clamping devices, in particular to a clamp.

Background

As shown in fig. 4, the aluminum alloy workpiece 1 produced by the die casting process is provided with vertical plates 11 on both sides of the bottom surface in the length direction, and the whole surface of the top surface is required to be milled into a plane, wherein the thickness of the workpiece 1 is about 5 mm, the length is about 60 mm, and the width is about 40 mm.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a clamp aiming at the technical defects.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a clamp, includes the bottom plate, the bottom plate upper surface is provided with the boss, be provided with first recess and the second recess that are used for holding two risers respectively on the boss, be provided with in the first recess and compress tightly a riser on the lateral wall that first recess is close to the second recess by power unit driven clamp plate, the bottom surface of second recess is provided with the third recess in one side of keeping away from first recess, sliding connection has the lifter plate in the third recess, be provided with the spring between the bottom surface of third recess and the bottom surface of lifter plate, the top surface of lifter plate is provided with the jack-prop, and the rotation axis is connected and its one side that is located the one end of second recess is provided with the lug that can push down the lifter plate with the boss rotation.

Further optimize this technical scheme, clamp plate and first recess sliding connection, the clamp plate lower part is provided with the screw hole, and this screw hole threaded connection has the threaded rod of being connected with the boss rotation, one end of threaded rod stretches out from one side of boss.

Further optimizing this technical scheme, the top of spliced pole is the hemisphere.

Further optimize this technical scheme, the top surface of boss still is provided with the setting element that is used for giving the both sides location of work piece width direction.

The utility model has the following advantages: the bottom of boss is provided with the bottom plate that is used for fixing on the workstation, and the top of boss is provided with first recess and second recess, and the clamp plate compresses tightly a riser in first recess can be fixed the work piece that figure 4 shows, and the jack-prop on the lifter plate can play the effect of supporting and fixing the work piece, prevents to appear shaking the sword line when processing the top surface of work piece, and the clamping is comparatively convenient.

Drawings

Fig. 1 is a schematic structural view of the clamp of the present utility model.

Fig. 2 is a cross-sectional view of the clamp of the present utility model.

Fig. 3 is a schematic structural view of the bump.

Fig. 4 is a schematic structural view of a workpiece with vertical plates on both sides of the bottom surface.

In the figure: 1. a workpiece; 11. a vertical plate; 2. a bottom plate; 3. a boss; 31. a first groove; 32. a second groove; 33. a lifting plate; 331. a top column; 34. a rotation shaft; 341. a bump; 35. a positioning piece; 36. a threaded rod; 37. a pressing plate; 38. a third groove; 4. and (3) a spring.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

The specific embodiment is as follows: referring to fig. 1-4, a fixture includes a base plate 2, which in use, is secured to a table of a machining apparatus (e.g., a milling machine or machining center). The upper surface of the bottom plate 2 is provided with a boss 3, the boss 3 is provided with a first groove 31 and a second groove 32 for accommodating the two vertical plates 11, the distance between the two grooves is not exactly equal to the distance between the two vertical plates 11 due to the machining precision, and if the two distances are equal, the two vertical plates 11 are difficult to be quickly inserted into the two grooves due to no gap, therefore, the distance between the two grooves is smaller than the distance between the two vertical plates 11, and the width of the grooves is larger than the thickness of the vertical plates 11 (the thickness is in the left-right direction in fig. 1). A pressing plate 37 driven by a power mechanism is arranged in the first groove 31, and can press one vertical plate 11 on the side wall of the first groove 31 close to the second groove 32. The bottom surface of second recess 32 is provided with third recess 38 in the one side that keeps away from first recess 31, sliding connection has lifter plate 33 in the third recess 38, be provided with spring 4 between the bottom surface of third recess 38 and the bottom surface of lifter plate 33, lifter plate 33's top surface is provided with jack-post 331, rotation axis 34 and boss 3 rotate to be connected and its one side that lies in second recess 32 is provided with the lug 341 that can push down lifter plate 33, the one end that rotation axis 34 lies in second recess 32 can also prevent lifter plate 33 to go up on, spring 4 still is in compression when lifter plate 33's top surface and rotation axis 34's bottom contact, rotation axis 34's the other end stretches out from boss 3's side and this end is provided with the handle.

In use, as shown in fig. 1, two vertical plates 11 are first fully inserted into the first groove 31 and the second groove 32, respectively, wherein the vertical plate 11 located in the first groove 31 is located at the left side of the pressing plate 37, the vertical plate 11 located in the second groove 32 is located at the right side of the top plate 33, the bump 341 is located at the lower side of the rotation shaft 34 to press down the lifting plate 33 by a certain distance so that a certain gap is formed between the top end of the top column 331 and the bottom surface of the workpiece 1, then the pressing plate 37 is moved to the left to press the vertical plate 11 against the left wall of the first groove 31, the workpiece 1 is fixed at this time, then the rotation shaft 34 is rotated so that the bump 341 is rotated to one side, the lifting plate 33 is lifted up so that the top end of the top column 331 is in contact with the bottom surface of the workpiece 1 and provides an upward thrust force to the workpiece 1 (at this time, the top surface of the lifting plate 33 is not in contact with the rotation shaft 34), the workpiece 1 is supported and fixed, and if there is no top column 331, the left end of the workpiece 1 is processed in the top surface of the processing, the left side of the workpiece 1 is not pressed down by the pressing plate 37, and if the left end of the top surface of the workpiece 1 is not pressed against the top surface of the top plate 1 due to the left end of the workpiece 1 (37 is not pressed against the top surface of the bottom surface of the workpiece 1 because the left end of the pressing plate 3 is not pressed against the top surface of the top plate 3, and the top surface of the top surface is not pressed against the top surface of the workpiece 1 because the top surface is not pressed against the top surface by the top surface of the top plate 3, if the top surface of the top surface is not pressed against the top surface of the top surface 3.

Specifically, the power mechanism may be: the pressing plate 37 is slidably connected with the first groove 31, a threaded hole is formed in the lower portion of the pressing plate 37, the threaded hole is in threaded connection with a threaded rod 36 rotatably connected with the boss 3, one end of the threaded rod 36 extends out of one side of the boss 3, a handle is arranged at the end of the threaded rod, and the pressing plate 37 can be driven to press or loosen the vertical plate 11 by rotating the threaded rod 36. An air cylinder can be arranged on one side of the boss 3, and a piston rod of the air cylinder extends into the first groove 31 to be connected with the pressing plate 37 so as to drive the pressing plate 37 to press or loosen the vertical plate 11.

The top end of the top column 331 is hemispherical, and if the top end is a plane, the plane is difficult to be perfectly parallel to the top surface of the boss 3 due to the problem of machining accuracy, and it is also difficult to form surface contact.

The top surface of the boss 3 is also provided with positioning pieces 35 for positioning both sides of the workpiece 1 in the width direction. As shown in fig. 1, a certain gap is reserved between the front side and the rear side of the first groove 31 and the second groove 32 and the vertical plate 11 so as to facilitate the insertion of the vertical plate 11, and after the positioning piece 35 is arranged, when the workpieces 1 are in a large batch, the positions of the workpieces 1 are relatively fixed and accurate during each clamping.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims (5)

1. A clamp comprising a base plate (2), characterized in that: the utility model discloses a lifting device, including bottom plate (2), boss (3) are provided with first recess (31) and second recess (32) that are used for holding two riser (11) respectively on the boss (3), be provided with in first recess (31) and compress tightly one riser (11) on the lateral wall that first recess (31) is close to second recess (32) by power unit driven clamp plate (37), the bottom surface of second recess (32) is provided with third recess (38) in one side of keeping away from first recess (31), sliding connection has lifter plate (33) in third recess (38), be provided with spring (4) between the bottom surface of third recess (38) and the bottom surface of lifter plate (33), the top surface of lifter plate (33) is provided with spliced pole (331), and rotation axis (34) are connected with boss (3) rotation and its one side that is located the one end of second recess (32) is provided with lug (341) that can push down lifter plate (33).

2. A clamp as claimed in claim 1, wherein: the clamp plate (37) and first recess (31) sliding connection, clamp plate (37) lower part is provided with the screw hole, and this screw hole threaded connection has threaded rod (36) of being connected with boss (3) rotation, one end of threaded rod (36) stretches out from one side of boss (3).

3. A clamp according to any one of claims 1-2, characterized in that: the top end of the top column (331) is hemispherical.

4. A clamp according to any one of claims 1-2, characterized in that: the top surface of the boss (3) is also provided with positioning pieces (35) for positioning the two sides of the width direction of the workpiece (1).

5. A clamp according to claim 3, wherein: the top surface of the boss (3) is also provided with positioning pieces (35) for positioning the two sides of the width direction of the workpiece (1).