CN203843539U - Clamping device for thin wall part with lightening hole - Google Patents

Abstract

The utility model relates to a clamping device for a thin wall part with a lightening hole and belongs to the field of machining. The clamping device comprises a fixture body, a press plate and screws. When the part is clamped, a boss on the opening part of the part to be clamped is connected in an annular groove in the outer edge of the fixture body in a clamping mode, the press plate is pulled outwards, a clamping part at the front end of the press plate is made to penetrate out of the lightening hole of the side wall of the part to be clamped, the screws between the press plate and the fixture body are then tightly screwed, the clamping part at the front end of the press plate is made to move towards the side of the fixture body, and the boss of the opening part of the part to be clamped is axially clamped between the fixture body and the clamping part at the front end of the press plate. The clamping device is simple in structure, clamping is convenient, the part is axially clamped by inserting the press plate capable of stretching into the lightening hole of the part in the radial direction, the thin wall cylindrical part is prevented from stressed in the radial direction to be deformed, and significant practical value is achieved.

Description

A kind of clamping device with lightening hole thin-wall part

Technical field

The utility model relates to a kind of clamping device with lightening hole thin-wall part, belongs to machine and adds field.

Background technology

As shown in Figure 1, it is shaped as the tubular construction of an end opening to the front end axle of certain product parts, and the oral area outer of tubular construction extends outward annular boss, is all processed with lightening hole at bottom surface and the sidewall of tubular construction.Because this part belongs to high-precision thin-wall piece, part rigidity is poor, in the time that this part is carried out to following process, if adopt the clamping tools such as conventional soft pawl to carry out radial clamping location to it, the clamping force of fixture is crossed conference and is caused workpiece deformation, cannot meet product design to its dimensional accuracy and form and position tolerance, therefore need to design a kind of clamping tool that adapts to this part clamping and positioning.

Utility model content

The purpose of this utility model is easily to deform in order to solve when traditional clamping is operated in certain front end axle part of clamping, causes element precision to be difficult to meet the technical barrier of product requirement, and a kind of clamping device with lightening hole thin-wall part is provided.

The purpose of this utility model is achieved through the following technical solutions:

A kind of clamping device with lightening hole thin-wall part of the present utility model, comprises clamp body, pressing plate and screw;

Clamp body is circular plate type structure, the outer rim of the side plate face of clamp body is processed with interior shape and treats the cannelure that clamping parts oral area boss profile matches, in this lateral plates of clamp body, be processed with one group of circle distribution screwed hole, the distributing position of this screwed hole matches with the distributing position of the lightening hole for the treatment of clamping parts sidewall, and in this lateral plates of clamp body, the inner side of each screwed hole is all processed with a pressing plate positioning slot radially extending;

The front end of pressing plate is width and treat the clamping section that clamping parts sidewall lightening hole width matches, and has location slotted hole on this clamping section, and the rear end of pressing plate is extended positioning boss downwards along plate face vertical direction;

Screw passes the location slotted hole of pressing plate front end clamping section and is threaded in the screwed hole of clamp body, the positioning boss of pressing back-end is inserted in the pressing plate positioning slot of clamp body, and between pressing plate and clamp body, leave clamping gap.

While clamping part, first the oral area boss screens for the treatment of clamping parts is connected in the cannelure at clamp body outer rim place, pull out pressing plate, make the clamping section of pressing plate front end pass the lightening grooves for the treatment of clamping parts sidewall, screw again the screw connecting between pressing plate and clamp body, make the clamping section of pressing plate front end to clamp body one side shifting, make the oral area boss axial grip for the treatment of clamping parts between clamp body and pressing plate front end clamping section.

Beneficial effect

The utility model is simple in structure, and convenient mounting and clamping is inserted in the lightening hole of part by the pressing plate of expandable, and it is realized to axial grip, avoids thin-wall tube-shaped part be subject to radial pressure and deform, and has important practical value.

Brief description of the drawings

Fig. 1 is the structural representation for the treatment of clamping product front end axle part;

Fig. 2 is the use state diagram of the utility model clamping device;

Fig. 3 is that the A-A of Fig. 2 is to view;

Fig. 4 is the structural representation of clamp body in the utility model clamping device;

Fig. 5 is the structural representation of briquetting in the utility model clamping device;

Wherein, 1-clamp body; 2-pressing plate; 3-screw; 4-part to be clamped.

Detailed description of the invention

Below in conjunction with drawings and Examples, content of the present utility model is further described.

Embodiment

A kind of clamping device with lightening hole thin-wall part of the present utility model, as shown in Figure 2,3, comprises clamp body 1, pressing plate 2 and screw 3;

As shown in Figure 4, clamp body 1 is circular plate type structure, the outer rim of the side plate face of clamp body 1 is processed with interior shape and treats the cannelure that clamping parts oral area boss profile matches, in clamp body 1 this lateral plates, be processed with one group of circle distribution screwed hole, the distributing position of this screwed hole matches with the distributing position of the lightening hole for the treatment of clamping parts sidewall, and in clamp body 1 this lateral plates, the inner side of each screwed hole is all processed with a pressing plate positioning slot radially extending;

As shown in Figure 5, the front end of pressing plate 2 is width and treat the clamping section that clamping parts sidewall lightening hole width matches, and has location slotted hole on this clamping section, and the rear end of pressing plate 2 is extended positioning boss downwards along plate face vertical direction;

Screw 3 passes the location slotted hole of pressing plate 2 front end clamping sections and is threaded in the screwed hole of clamp body 1, the positioning boss of pressing plate 2 rear ends is inserted in the pressing plate positioning slot of clamp body 1, and between pressing plate 2 and clamp body, leave clamping gap.

While clamping part, first the oral area boss screens for the treatment of clamping parts is connected in the cannelure at clamp body outer rim place, pull out pressing plate 2, make the clamping section of pressing plate 2 front ends pass the lightening grooves for the treatment of clamping parts sidewall, screw again the screw 3 connecting between pressing plate 2 and clamp body 1, make the clamping section of pressing plate 2 front ends to clamp body 1 one side shiftings, make the oral area boss axial grip for the treatment of clamping parts between clamp body 1 and pressing plate 2 front end clamping sections.

Claims (1)

1. the clamping device with lightening hole thin-wall part, is characterized in that: comprise clamp body, pressing plate and screw;

Clamp body is circular plate type structure, the outer rim of the side plate face of clamp body is processed with interior shape and treats the cannelure that clamping parts oral area boss profile matches, in this lateral plates of clamp body, be processed with one group of circle distribution screwed hole, the distributing position of this screwed hole matches with the distributing position of the lightening hole for the treatment of clamping parts sidewall, and in this lateral plates of clamp body, the inner side of each screwed hole is all processed with a pressing plate positioning slot radially extending;

The front end of pressing plate is width and treat the clamping section that clamping parts sidewall lightening hole width matches, and has location slotted hole on this clamping section, and the rear end of pressing plate is extended positioning boss downwards along plate face vertical direction;

Screw passes the location slotted hole of pressing plate front end clamping section and is threaded in the screwed hole of clamp body, the positioning boss of pressing back-end is inserted in the pressing plate positioning slot of clamp body, and between pressing plate and clamp body, leave clamping gap.