CN110977804A

CN110977804A - Portable bench clamp

Info

Publication number: CN110977804A
Application number: CN202010024216.7A
Authority: CN
Inventors: 刘少岗; 齐晓明; 张义飞
Original assignee: Tianjin University of Science and Technology
Current assignee: Tianjin University of Science and Technology
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-04-10

Abstract

The invention discloses portable bench clamp, which mainly comprises four parts, namely a base, a movable jaw, a screw and a fixing screw. The base is provided with a concave guide rail, a mounting hole, a screw hole and a fixed jaw. The guide rail, the screw hole, the fixed jaw and the base are integrally designed. The fixed jaw is designed integrally. The screw hole is used for being matched with the screw rod and providing positioning and clamping force for the screw rod. The top end of the screw rod is also provided with a screw hole which is convenient for the movable jaw to be fixed with the screw rod. The movable jaw is provided with a sliding block which is matched with the concave guide rail of the base, and the movable jaw is integrally designed, wherein the sliding block and the movable jaw are also integrally designed. The fixed screw is used for connecting the movable jaw with the screw rod. The bench clamp is only composed of four parts when being integrally seen, and the installation operation of the bench clamp is greatly simplified. The upper part of the horizontal part of the bench clamp base is provided with a guide rail and a screw hole, and the guide rail is provided with a guide surface which is an upper end surface of the guide rail and is used for being matched with a bottom sliding block of the movable jaw. When the bench clamp works, a workpiece is placed on the concave table guide rail and is not directly placed on the guide rail surface, the guide surface of the guide rail is protected, and the working precision and the service life of the bench clamp are improved.

Description

Portable bench clamp

Technical Field

The present invention relates to the field of clamping tools, particularly those that clamp light and small parts and require frequent disassembly and assembly.

Background

The bench clamp is a common clamping tool in machining, is a random accessory of some machine tools, is fixed on a worktable of the machine tool and is used for clamping a workpiece to carry out machining; and can also be used for clamping a workpiece during the bench work. When the bench clamp works, a workpiece is firstly placed between two jaws of the bench clamp, and then the movable clamp body is driven to clamp the workpiece. Present widely used bench vice, the complicated part quantity of structure is many, and the screw rod crosses the base installation loaded down with trivial details, and overall structure is heavy, is not convenient for remove and use.

Disclosure of Invention

The invention aims to provide a portable bench clamp which is simple in structure and light in weight and is convenient to mount, dismount and move. The invention reduces the weight of the bench clamp and the number of parts of the bench clamp structure by changing the structure of the fixed jaw, the structure of the movable jaw, the structure of the screw, the installation mode of the screw and the matching mode of the screw and the movable jaw, simplifies the installation of the bench clamp, simultaneously can avoid the abrasion or deformation of the guide surface of the guide rail, improves the working precision of the bench clamp and prolongs the service life of the bench clamp.

The invention provides the following technical scheme:

a portable bench clamp is composed of four parts, namely a base, a movable jaw, a screw rod and a fixing screw, wherein the base comprises a guide rail, a screw hole and a mounting hole. Greatly simplifying the structure of the bench clamp.

Moreover, the guide rail and the base are integrally designed, and the base is provided with four pillars for supporting the concave guide rail.

And the screw hole is positioned on the base, so that the screw rod is convenient to mount, and the screw rod and the base are integrally designed.

And when the workpiece is clamped, the workpiece is placed on the concave guide rail but is not contacted with the guide surface of the guide rail, so that the abrasion of the workpiece to the guide surface is avoided, and the precision and the service life of the bench clamp can be well protected.

In addition, the movable jaw is integrally designed, so that the installation of the bench clamp is simplified, and the stability is improved.

Moreover, two sliding blocks are arranged at the bottom of the movable jaw and are used for matching with the guide rail to move, and the movable jaw is positioned.

And the screw hole is arranged at the head of the screw rod, so that the movable jaw and the screw rod are convenient to fix, the arrangement that the conventional screw rod penetrates through the whole base is changed, the position of the screw rod is lifted to the upper side of the base, and the bench clamp is convenient to install.

Moreover, the fixed clamp body is integrally designed, so that the installation of the bench clamp is facilitated, and the weight of the fixed clamp body is reduced.

Moreover, the base is integrally designed, so that the number of parts is greatly reduced.

The bench clamp has the advantages that a large number of integrated designs are carried out on the bench clamp structure, the bench clamp is convenient to mount, dismount and move, the number of parts is greatly reduced, the operation of the bench clamp is simplified, and the operation is simple.

The present invention will be described in further detail with reference to the drawings and specific examples. Drawings

FIG. 1 is a perspective view of the bench clamp

FIG. 2 is a structural plan view of the bench clamp

FIG. 3 is a front view of the structure of the bench clamp

FIG. 4 is a front view of the screw structure

FIG. 5 is a cross-sectional view of a screw structure

Description of reference numerals: 1-bench clamp base, 2-movable jaw slide block, 3-concave guide rail, 4-movable jaw, 5-screw crank,

6-screw rod, 7-screw hole, 8-fixing screw, 9-fixing jaw and 10-mounting hole.

Detailed Description

The present invention will be described in further detail with reference to the attached drawings, and the following embodiments are illustrative only, not limiting, and should not be construed as limiting the scope of the present invention.

In order to be able to describe the invention in detail, first, the bench clamp of the invention will be explained in detail.

The core of the invention is to provide a portable bench clamp, which changes the structure of the prior base 1, the structure and the arrangement mode of the screw 6 and the structure of the movable jaw 4. The bench clamp base comprises a fixed jaw 9, a concave guide rail 3, a screw hole 7 and a mounting hole 10. The concave guide rail 3 is placed on the base through four support columns, the guide surface of the concave guide rail 3 is used for being matched with the sliding block at the bottom of the movable jaw 4 to work, and a workpiece is placed on the upper surface of the concave guide rail 3, so that even if the concave guide rail 3 is abraded or deformed in the using process, the sliding fit between the movable jaw 4 and the guide rail 3 is not influenced, and further the working precision and the service life of the bench clamp are improved. Screw holes 7 are also arranged on the base for positioning the screw rods 6 and providing clamping force for the screw rods 6, mounting holes 10 are used for mounting bench clamps, and the fixed jaw 9 is used for matching with the movable jaw 4 to clamp parts. The arrangement of the screw 6 is changed from the prior structure of crossing the base into the arrangement of directly matching with the screw hole of the base and the movable jaw 4, and the top of the screw 6 is provided with a screw hole for matching with a fixed screw 8 to fix the movable jaw. The screw 6 and the screw crank 5 are designed integrally. The movable jaw 4 is arranged into an integrated structure, and the sliding block 2 is added at the bottom.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a vise provided in the present invention; FIG. 2 is a top view of the vise provided in the present invention; fig. 3 is a front view of the present invention.

A method of using a portable bench clamp (as shown in fig. 1):

(1) firstly, a workpiece is placed on the concave guide rail 3 of the bench clamp base, the upper surface of the guide rail 3 bears the gravity of the workpiece, the screw crank 5 is rotated, and the screw crank 5 drives the screw 6 to push the movable clamp body 4 to move towards the fixed clamp body 9 until the workpiece is clamped tightly.

(2) When the workpiece needs to be loosened, the screw crank 5 is rotated reversely, and the screw 6 drives the movable clamp body 4 to be far away from the workpiece, so that the pressure of the workpiece is relieved; and finally, taking out the workpiece.

The present invention provides a portable bench clamp, which is described in detail above, and the principle and the embodiments of the present invention are explained in detail herein by using specific examples, which are only used to help understand the method and the core idea of the present invention. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the protective scope of the present invention to those skilled in the art.

Claims

1. A portable bench clamp comprises a base, a screw, a movable jaw and a fixing screw. The method is characterized in that: the movable jaw is fixed on the screw rod through a fixing screw, the movable jaw is placed on the guide rail, the screw rod is positioned through a screw hole in the base and provides clamping force required by the movable jaw, and clamping work is completed.

2. A portable bench clamp as defined in claim 1, wherein: the screw and the screw crank are integrally designed.

3. A portable bench clamp as defined in claim 1, wherein: the base comprises a concave guide rail, the concave guide rail is arranged on the base through four support columns, and therefore the installation of the bench clamp is simplified.

4. A portable bench clamp as defined in claim 1, wherein: the base includes the screw, and the screw is located the base top, and the screw is used for providing the clamp force to the location of screw rod and for pressing from both sides tight work piece.

5. A portable bench clamp as defined in claim 1, wherein: the movable jaw is additionally provided with a sliding block at the bottom, so that the structure is simplified.

6. A portable bench clamp as defined in claim 1, wherein: the screw hole is machined in the top of the screw rod, so that the movable jaw is convenient to connect with the screw rod, and the depth of the screw hole is slightly shorter than that of the fixed screw.

7. A portable bench clamp as defined in claim 1, wherein: the movable jaw is integrally designed.

8. A portable bench clamp as defined in claim 1, wherein: the fixed jaw is designed integrally.

9. A portable bench clamp as defined in claim 1, wherein: the screw rod and the movable jaw are matched in a way that the movable jaw is directly fixed on the screw rod through a fixing screw.