CN218947027U

CN218947027U - Clamping jig for machining thin-wall box body

Info

Publication number: CN218947027U
Application number: CN202320114818.0U
Authority: CN
Inventors: 李台勇
Original assignee: Dongguan Yuyuan Prec Metal Ind Co ltd
Current assignee: Dongguan Yuyuan Prec Metal Ind Co ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-05-02
Anticipated expiration: 2033-01-18

Abstract

The utility model discloses a clamping jig for processing a thin-wall box body, which comprises a bottom plate for placing a reference surface of the thin-wall box body, and at least one clamping mechanism which is arranged on the bottom plate and is used for clamping two ends of the thin-wall box body, wherein the clamping mechanism comprises a movable push block which is used for propping against one end of the thin-wall box body and a plurality of positioning columns which are used for propping against the other end of the thin-wall box body, and one end of the movable push block is provided with a clamping cylinder assembly which is used for driving the movable push block to reciprocate; the clamping jig for processing the thin-wall box body has the advantages of high clamping speed, uniform clamping force at two ends of the thin-wall box body, no damage to the two ends of the thin-wall box body due to clamping, less processing deformation, capability of ensuring the processing plane precision and stable quality of the thin-wall box body.

Description

Clamping jig for machining thin-wall box body

Technical Field

The utility model relates to the technical field of clamping jigs, in particular to a clamping jig for processing a thin-wall box body.

Background

After one end face of the existing thin-wall box body is machined, the end face is required to be used as a reference face, and then the other end face of the thin-wall box body is machined. Therefore, when the other end face of the thin-walled case is processed, it is necessary to clamp and position the left and right faces of the thin-walled case with a bench vice or a hydraulic jig.

However, the use of the bench vice or the hydraulic jig for clamping and positioning the thin-wall box has the following drawbacks: 1. because the wall of the thin-wall box body is thinner, the thin-wall box body is easy to deform greatly; 2. the bench vice or the oil pressure jig clamps the left and right sides of the thin-wall box body through two large planes respectively, and as the flatness of the left and right sides of the thin-wall box body has a certain error, the clamping force of the bench vice or the oil pressure jig is large, so that the clamping points of the left and right sides of the thin-wall box body are stressed unevenly, and rebound deformation is large after the bench vice or the oil pressure jig is taken out; 3. the left and right sides of the thin-wall box body are easily damaged by clamping by using a bench vice or an oil pressure jig.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a clamping jig for processing a thin-wall box body, which is used for solving the problems that the thin-wall box body is clamped and damaged when the thin-wall box body is clamped and positioned by the existing bench vice or oil pressure jig, the stress of clamping points on the left side and the right side of the thin-wall box body is uneven, and the thin-wall box body is easy to deform after being processed.

In order to achieve the above purpose, the utility model provides a clamping jig for processing a thin-wall box body, which comprises a bottom plate for placing a reference surface of the thin-wall box body, and at least one clamping mechanism which is arranged on the bottom plate and is used for clamping two ends of the thin-wall box body, wherein the clamping mechanism comprises a movable push block which is used for propping against one end of the thin-wall box body and a plurality of positioning columns which are used for propping against the other end of the thin-wall box body, and one end of the movable push block is provided with a clamping cylinder assembly which is used for driving the movable push block to reciprocate.

Preferably, the clamping cylinder assembly comprises a mounting seat, a first clamping cylinder arranged at one end of the mounting seat and in transmission connection with one end of the movable pushing block, and a second clamping cylinder arranged at the other end of the mounting seat and in transmission connection with the other end of the movable pushing block; the first clamping cylinder and the second clamping cylinder are arranged to effectively ensure the clamping force, and meanwhile, the clamping force is uniform and the clamping stability is ensured.

Preferably, the other end of the movable pushing block is provided with a smooth contact surface for propping against one end of the thin-wall box body; the smooth contact surface can not damage one end of the thin-wall box body when clamping the thin-wall box body.

Preferably, one end of the smooth contact surface is provided with a rounding; the rounding is convenient for clamping one end of the thin-wall box body.

Preferably, the number of the positioning posts is three.

Preferably, the three positioning columns are respectively a front positioning column, a middle positioning column and a rear positioning column.

Preferably, one end of the positioning column is provided with a chamfer; the chamfering is convenient for clamping the other end of the thin-wall box body.

Preferably, the bottom plate is connected with the clamping cylinder assembly and the positioning column through bolts respectively.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model is provided with the clamping cylinder assembly, the movable pushing block and a plurality of positioning columns, so that the thin-wall box body can be rapidly clamped. The clamping block is used for propping one end of the thin-wall box body, the positioning columns are used for propping the other end of the thin-wall box body, the complete contact of the two ends of the thin-wall box body is reduced, and meanwhile, the positioning columns ensure that the positions of the thin-wall box body are uniformly clamped, so that the box body can be firmly clamped, the box body clamping force is uniform and the clamping force is moderate, a trace of deformation allowance in the transverse direction is reserved, deformation in the vertical direction is avoided, and the machining precision of a machining surface corresponding to one end of a reference surface of the box body is ensured.

2. The clamping jig for processing the thin-wall box body has the advantages of high clamping speed, uniform clamping force at two ends of the thin-wall box body, no damage to the two ends of the thin-wall box body due to clamping, less processing deformation, capability of ensuring the processing plane precision and stable quality of the thin-wall box body.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a clamping fixture for processing a thin-wall box body according to an embodiment of the present utility model;

fig. 2 is an exploded view of a clamping fixture for machining a thin-walled box according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a clamping mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic illustration of a movable push block and clamping cylinder assembly provided by an embodiment of the present utility model;

fig. 5 is a schematic structural view of a front side positioning column, a middle positioning column and a rear side positioning column according to an embodiment of the present utility model.

The drawings include:

1. a bottom plate; 2. clamping mechanism; 3. a movable pushing block; 30. a smooth contact surface; 4. positioning columns; 41. a front side positioning column; 42. a middle positioning column; 43. a rear positioning column; 5. a clamping cylinder assembly; 50. a mounting base; 51. a first clamping cylinder; 52. and a second clamping cylinder.

Detailed Description

The technical solutions of the present embodiment of the present utility model will be clearly and completely described below with reference to the drawings in the present embodiment of the present utility model, and it is apparent that the described present embodiment is one embodiment of the present utility model, but not all the present embodiments. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Referring to fig. 1 to 5, an embodiment of the present utility model provides a clamping fixture for processing a thin-walled box, which includes a base plate 1 for placing a reference surface of the thin-walled box, and at least one clamping mechanism 2 mounted on the base plate 1 and used for clamping two ends of the thin-walled box, wherein the clamping mechanism 2 includes a movable push block 3 for propping against one end of the thin-walled box and a plurality of positioning columns 4 for propping against the other end of the thin-walled box, and one end of the movable push block 3 is provided with a clamping cylinder assembly 5 for driving the movable push block 3 to reciprocate.

The clamping cylinder assembly 5 comprises a mounting seat 50, a first clamping cylinder 51 arranged at one end of the mounting seat 50 and in transmission connection with one end of the movable push block 3, and a second clamping cylinder 52 arranged at the other end of the mounting seat 50 and in transmission connection with the other end of the movable push block 3. The first and

second clamping cylinders

51 and 52 function: the clamping force of the pushing block is guaranteed, and meanwhile, the uniformity and the clamping stability of the clamping force are guaranteed.

The other end of the movable push block 3 is provided with a smooth contact surface 30 which is used for propping against one end of the thin-wall box body. The smooth contact surface 30 functions: when one end of the movable push block 3 abuts against one end of the thin-wall box body, the thin-wall box body cannot be damaged.

The number of the positioning posts 4 is three. Wherein, three reference columns 4 are respectively a front side reference column 41, a middle reference column 42 and a rear side reference column 43. The front side positioning column 41, the middle positioning column 42 and the rear side positioning column 43 can ensure uniform clamping force and clamping stability.

One end of the smooth contact surface 30 is provided with a rounding; one end of the positioning column 4 is provided with a chamfer. The rounding of the smooth contact surface 30 of the movable push block 3 and the chamfering of the positioning column 4 are convenient for the loading and unloading of the thin-wall box body.

The bottom plate 1 is respectively connected with the clamping cylinder assembly 5 and the positioning column 4 through bolts.

The application method of the clamping jig for processing the thin-wall box body comprises the following steps: because the occupied area of the clamping mechanism 2 is small, two assembly clamping mechanisms 2 can be placed, two thin-wall boxes are respectively installed in the movable clamping blocks at the same time, the datum planes at the bottoms of the two thin-wall boxes are guaranteed to be attached to the bottom plate 1, finally, the two clamping cylinder assemblies 5 are driven through an electric control system in the prior art, the two thin-wall boxes are guaranteed to be clamped, and finally, the top surfaces of the thin-wall boxes are machined through CNC.

According to the clamping jig for processing the thin-wall box body, disclosed by the embodiment of the utility model, the clamping speed is high, the clamping force at the two ends of the thin-wall box body is uniform, the clamping of the clamping jig does not damage the two ends of the thin-wall box body, the processing deformation is less, the processing plane precision can be ensured, the plane precision can be controlled within 0.5 millimeter, and the stable quality of the thin-wall box body is ensured.

The foregoing is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the utility model, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. The utility model provides a clamping tool for thin wall box processing, is including being used for supplying bottom plate (1) that the thin wall box reference surface placed, its characterized in that still includes at least one clamping mechanism (2) of installing on bottom plate (1) and being used for clamping thin wall box both ends, clamping mechanism (2) including be used for with thin wall box one end tight movable push block (3) and be used for with thin wall box other end tight a plurality of reference column (4) of offseting, the tight cylinder subassembly (5) of clamp that is used for driving movable push block (3) reciprocating motion is installed to movable push block (3) one end.

2. The clamping jig for machining the thin-wall box body according to claim 1, wherein the clamping cylinder assembly (5) comprises a mounting seat (50), a first clamping cylinder (51) arranged at one end of the mounting seat (50) and in transmission connection with one end of the movable pushing block (3), and a second clamping cylinder (52) arranged at the other end of the mounting seat (50) and in transmission connection with the other end of the movable pushing block (3).

3. The clamping jig for processing the thin-wall box body according to claim 1, wherein the other end of the movable pushing block (3) is provided with a smooth contact surface (30) for propping against one end of the thin-wall box body.

4. A clamping jig for thin-walled tank processing according to claim 3 characterized in that one end of the smooth contact surface (30) is provided with a rounded corner.

5. The clamping jig for processing the thin-wall box body according to claim 1, wherein the number of the positioning columns (4) is three.

6. The clamping jig for processing the thin-walled box according to claim 5, wherein the three positioning columns (4) are a front positioning column (41), a middle positioning column (42) and a rear positioning column (43), respectively.

7. The clamping jig for processing the thin-walled box according to any one of claims 1, 5 or 6, wherein one end of the positioning column (4) is provided with a chamfer.

8. The clamping jig for processing the thin-wall box body according to claim 1, wherein the bottom plate (1) is connected with the clamping cylinder assembly (5) and the positioning column (4) through bolts respectively.