CN203679780U

CN203679780U - Cam drive type quick clamping device

Info

Publication number: CN203679780U
Application number: CN201320766346.3U
Authority: CN
Inventors: 侯鹏
Original assignee: Xian Zhongzhi Huize Optical Technology Co Ltd
Current assignee: Xian Zhongzhi Huize Optical Technology Co Ltd
Priority date: 2013-11-27
Filing date: 2013-11-27
Publication date: 2014-07-02
Anticipated expiration: 2023-11-27

Abstract

The utility model discloses a cam drive type quick clamping device. The cam drive type quick clamping device comprises a connecting rod which is used for being connected with an L-shaped clamping arm I and an L-shaped clamping arm II, a T-shaped pull rod and an eccentric wheel which is used for driving the T-shaped pull rod; a hinge seat I is fixedly installed at the lower end of the L-shaped clamping arm, a hinge seat II is fixedly installed at the lower end of the L-shaped clamping arm II, the hinge seat I is rotatably connected with one end of the pull rod through a pin roll I, the hinge seat II is rotatably connected with the other end of the connecting rod through a pin roll II, the end part of the T-shaped pull rod sequentially penetrates through the L-shaped clamping arm I and the L-shaped clamping arm II and then is rotatably connected with the eccentric wheel through a pin roll III, and a driving handle for turning the eccentric wheel is fixedly installed on the eccentric wheel. The cam drive type quick clamping device has the characteristics of reasonable design, simple structure, fast clamping speed, self-locking, good clamping effect, convenience in operation, short machining preparation time, very low production cost and easiness in popularization and use.

Description

Actuated by cams formula fast fixture

Technical field

The utility model belongs to Machining Technology field, relates to a kind of clamping device, is specifically related to a kind of actuated by cams formula fast fixture.

Background technology

At present, fastener is all widely used in all trades and professions, the problems such as fastener generally adopts the modes such as wedge clamping, helical clamping, centering clamping or hinge clamping, and above-mentioned clamping mode exists structure and manufacture craft relative complex, and force increasing ratio is relatively little.

Utility model content

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, a kind of actuated by cams formula fast fixture is provided, and it is reasonable in design, simple in structure, clamp speeds is fast, can self-locking, clamp effective, easy to operate, leading time is short, production efficiency is high, and production cost is very low, is convenient to promote the use of.

For achieving the above object, the technical solution adopted in the utility model is: a kind of actuated by cams formula fast fixture, comprise the symmetrically arranged L shaped clamp arm one for clamping work pieces and L shaped clamp arm two, it is characterized in that: also comprise connecting rod for connecting described L shaped clamp arm one and described L shaped clamp arm two, for driving the T shape pull bar of described L shaped clamp arm one and described L shaped clamp arm two workpiece pressings and for driving the eccentric wheel of described T shape pull bar; Described L shaped clamp arm one lower end is installed with hinged seat one, described L shaped clamp arm two lower ends are installed with hinged seat two, described hinged seat one is rotationally connected by bearing pin one and one end of described connecting rod, described hinged seat two is rotationally connected by bearing pin two and the other end of described connecting rod, the end of described T shape pull bar is successively through being rotationally connected by bearing pin three and described eccentric wheel after described L shaped clamp arm one and described L shaped clamp arm two, and on described eccentric wheel, fixed installation is useful on and rotates described eccentric driving handle.

Above-mentioned actuated by cams formula fast fixture, is characterized in that: described driving handle welds or is fixedly mounted on described eccentric wheel by screw thread.

The utility model compared with prior art has the following advantages:

(1) this actuated by cams formula fast fixture design is very reasonable, simple and compact for structure, and eccentric wheel drives L shaped clamp arm one and L shaped clamp arm two fast workpiece to be processed to be clamped by T shape pull bar, and clamp speeds is fast, has auto-lock function, clamps effective.

(2) the workpiece easy accessibility of this actuated by cams formula fast fixture, operating personnel only need can be realized the clamping of workpiece or be unclamped by rotating drive handle, thereby workman clamps or to unclamp workpiece rapid, and the leading time is short, and production efficiency is high.

(3) production technology of this actuated by cams formula fast fixture is simple, and requirement on machining accuracy is not high, and a lot of parts are all convenient to produce very much, purchase, thereby its production cost is very low, is convenient to batch production, promotes the use of.

Below by drawings and Examples, the utility model is described in further detail.

Brief description of the drawings

Fig. 1 is overall structure schematic diagram of the present utility model.

Description of reference numerals:

1-L shaped clamp arm one; 2-T shape pull bar; 3-hinged seat one;

4-bearing pin one; 5-connecting rod; 6-bearing pin two;

7-hinged seat two; 8-L shaped clamp arm two; 9-bearing pin three;

10-eccentric wheel; 11-driving handle; 12-workpiece.

Detailed description of the invention

A kind of actuated by cams formula fast fixture as shown in Figure 1, comprise the symmetrically arranged L shaped clamp arm 1 for clamping work pieces 12 and L shaped clamp arm 28, also comprise connecting rod 5 for connecting described L shaped clamp arm 1 and described L shaped clamp arm 28, for driving the T shape pull bar 2 of described L shaped clamp arm 1 and described L shaped clamp arm 28 workpiece pressings 12 and for driving the eccentric wheel 10 of described T shape pull bar 2; Described L shaped clamp arm one 1 lower ends are installed with hinged seat 1, described L shaped clamp arm 28 lower ends are installed with hinged seat 27, described hinged seat 1 is rotationally connected by bearing pin 1 and one end of described connecting rod 5, described hinged seat 27 is rotationally connected by bearing pin 26 and the other end of described connecting rod 5, the end of described T shape pull bar 2 is successively through being rotationally connected by bearing pin 39 and described eccentric wheel 10 after described L shaped clamp arm 1 and described L shaped clamp arm 28, and on described eccentric wheel 10, fixed installation is useful on the driving handle 11 that rotates described eccentric wheel 10.

In the present embodiment, described driving handle 11 welds or is fixedly mounted on described eccentric wheel 10 by screw thread.

The course of work of the utility model actuated by cams formula fast fixture is: as shown in Figure 1, first workpiece to be clamped 12 is placed on to the opening part between L shaped clamp arm 1 and L shaped clamp arm 28, clockwise rotate eccentric wheel 10 by driving handle 11, eccentric wheel 10 drives L shaped clamp arm 1 and L shaped clamp arm 28 Quick holding parts 12 by T shape pull bar 2.Otherwise, rotating counterclockwise eccentric wheel 10, L shaped clamp arm 1 and L shaped clamp arm 28 can unclamp workpiece 12.

The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.

Claims

1. an actuated by cams formula fast fixture, comprise the symmetrically arranged L shaped clamp arm one (1) for clamping work pieces (12) and L shaped clamp arm two (8), it is characterized in that: also comprise connecting rod (5) for connecting described L shaped clamp arm one (1) and described L shaped clamp arm two (8), for driving the T shape pull bar (2) of described L shaped clamp arm one (1) and described L shaped clamp arm two (8) workpiece pressings (12) and for driving the eccentric wheel (10) of described T shape pull bar (2), described L shaped clamp arm one (1) lower end is installed with hinged seat one (3), described L shaped clamp arm two (8) lower ends are installed with hinged seat two (7), described hinged seat one (3) is rotationally connected by bearing pin one (4) and one end of described connecting rod (5), described hinged seat two (7) is rotationally connected by bearing pin two (6) and the other end of described connecting rod (5), the end of described T shape pull bar (2) is successively through being rotationally connected by bearing pin three (9) and described eccentric wheel (10) after described L shaped clamp arm one (1) and described L shaped clamp arm two (8), the upper fixed installation of described eccentric wheel (10) is useful on the driving handle (11) that rotates described eccentric wheel (10).

2. according to actuated by cams formula fast fixture claimed in claim 1, it is characterized in that: described driving handle (11) welds or is fixedly mounted on described eccentric wheel (10) by screw thread.