CN202367622U

CN202367622U - Hydraulic clamp

Info

Publication number: CN202367622U
Application number: CN 201120557370
Authority: CN
Inventors: 左文收; 姜海斌; 耿相军
Original assignee: Shandong Fayin Numerically Controlled Machinery Co Ltd
Current assignee: Shandong Fayin Numerically Controlled Machinery Co Ltd
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-08-08
Anticipated expiration: 2021-12-28

Abstract

The utility model discloses a hydraulic clamp, which comprises an upper jaw, a lower jaw and a clamp body. The lower jaw is fixed on the clamp body. The middle part of the upper jaw is connected with the clamp body through a rotating shaft in a rotating way. A wedge is arranged in the clamp body, slides in the depth directions of the jaws, and is connected with an oil cylinder which drives the wedge to slide. The top surface of the wedge is an inclined surface of which the front end is low. A sliding chute is formed on the lateral surface of the wedge. A sliding guide surface in the sliding chute is parallel to the top surface of the wedge. A sliding guide shaft is arranged in the sliding chute. A roller pressed on the top surface of the wedge is arranged at the rear end of the upper jaw, and is connected with the wedge in a rotating way. The axes of the roller, the rotating shaft and the guide shaft are parallel. The roller is connected with the guide shaft through a connecting sleeve. The connecting sleeve is connected with the roller and the guide shaft in a rotating way. The jaws are stably and reliably opened and closed; the hydraulic clamp is applicable to the flat plate conveyance of a numerical control machine tool; and the stability of the numerical control machine tool is greatly improved.

Description

A kind of hydraulic clamp

Technical field

The utility model relates to a kind of hydraulic clamp.

Background technology

At present, known the hydraulic clamp chucking power is very big in flat board is carried, and simpler and more direct in this case version is lever construction.This lever construction only provides clamping force, and upper jaw opens general employing spring reset.Adopt spring that upper jaw is resetted following shortcoming is arranged: structure is not compact, uses instability, particularly in the Digit Control Machine Tool use, reduces the stability of Digit Control Machine Tool greatly.

Summary of the invention

The technical problem that the utility model will solve is: a kind of hydraulic clamp stable with snap-action that open is provided.

The utility model comprises upper jaw, lower jaw and caliper body, and lower jaw is fixed on the caliper body, and the middle part and the caliper body of upper jaw are rotationally connected through rotating shaft; Be provided with the wedge that slides at the jaw depth direction in the described caliper body, wedge is connected with and drives the oil cylinder that wedge slides, and the end face of wedge is the low inclined-plane of front end; The side of wedge is provided with chute; Slide-and-guide face in the chute is parallel with the end face of wedge, is provided with the axis of guide of slip in the chute, and the rear end of upper jaw is provided with the roller on the end face that is pressed in wedge; Roller and wedge are rotationally connected; Roller, rotating shaft and axis of guide three's parallel axes, roller is connected through adapter sleeve with the axis of guide, and adapter sleeve and roller and the axis of guide all are rotationally connected.

In order to make compact conformation, described caliper body is the U-lag body, and the two ends of rotating shaft are connected with the cell wall of the both sides of caliper body, and wedge and adapter sleeve are arranged in the groove of caliper body.

For easy for installation, the said clamp bar that is fixed on the caliper body rear end that includes, the cylinder body of oil cylinder is fixed on the rear end of clamp bar, is provided with the connecting rod of slip in the clamp bar, and the front end of connecting rod is connected with wedge, and the rear end of connecting rod is connected with the piston rod of oil cylinder.

The beneficial effect of the utility model: the utility model is realized opening of bit and interlock through the motion that oil cylinder promotes wedge, and action is very reliable and stable, is suitable for carrying use at numerical control system lathe middle plateform, has improved the stability of Digit Control Machine Tool greatly.

Description of drawings

Fig. 1 is the main TV structure sketch map of the utility model;

Fig. 2 is the plan structure sketch map of the utility model;

Fig. 3 is the A-A cutaway view of Fig. 2;

Structural representation when Fig. 4 is the utility model interlock (removing the left side wall of caliper body);

Fig. 5 is the structural representation (remove the left side wall of caliper body) of the utility model when opening;

Among the figure: 1, oil cylinder; 2, clamp bar; 3, caliper body; 4, rotating shaft; 5, upper jaw; 6, lower jaw; 7, connecting rod; 8, wedge; 9, roller; 10, adapter sleeve; 11, the axis of guide.

The specific embodiment

A kind of hydraulic clamp shown in Fig. 1-5; Comprise upper jaw 5, lower jaw 6, caliper body 3, clamp bar 2 and oil cylinder 1; Caliper body 3 is the U-lag body, and lower jaw 6 is fixed on the caliper body 3, and the middle part of upper jaw 5 and caliper body 3 are rotationally connected through rotating shaft 4; The two ends of rotating shaft 4 are connected with the cell wall of the both sides of caliper body 3, are provided with wedge 8 and adapter sleeve 10 in the groove of caliper body 3.The end face of wedge 8 is the low inclined-plane of front end, and the side of wedge 8 is provided with chute, and the slide-and-guide face in the chute is parallel with the end face of wedge 8, and the front end of wedge 8 is positioned at the below of the rear end of upper jaw 5.The jaw degree of depth is meant that the jaw depth direction is on the length direction of caliper body 3 from upper jaw 5 and the distance of lower jaw 6 occlusal end to rotating shaft.

Clamp bar 2 is fixed on the rear end of caliper body 3, and the cylinder body of oil cylinder 1 is fixed on the rear end of clamp bar 2, is provided with the connecting rod 7 of slip in the clamp bar 2, and the front end of connecting rod 7 is connected with wedge 8, and the rear end of connecting rod 7 is connected with the piston rod of oil cylinder 1.Slide in the groove of caliper body 3 thereby make oil cylinder 1 can promote wedge 8, the two side of caliper body play the guiding role.

Be provided with the axis of guide 11 of slip in the chute of wedge 8; The rear end of upper jaw 5 is provided with the roller 9 on the end face that is pressed in wedge 8; Roller 9 is rotationally connected with wedge 8; Roller 9, rotating shaft 4 and the axis of guide 11 threes' parallel axes, roller 9 is connected through adapter sleeve 10 with the axis of guide 11, and adapter sleeve 10 all is rotationally connected with the roller 9 and the axis of guide 11.

Operation principle: as shown in Figure 4 when needing the jaw interlock, promote wedge 8 forward, roller 9 drives rear end end motion behind the end face of wedge 8 of upper jaw 5, and promptly the rear end of wedge 8 is lifted, and the front end of upper jaw 54 rotates around the shaft, realizes and lower jaw 6 interlocks.

In the time of need opening, as shown in Figure 5, pull back wedge 8, roller 9 drives the front end of the top surface motion of the rear end of upper jaw 5 to wedge 8, and promptly the rear end of wedge 8 is dragged down, and the front end of upper jaw 54 upwards rotates around the shaft, and upper jaw 5 separates with lower jaw 6, and the realization jaw is opened.

Claims

1. a hydraulic clamp comprises upper jaw, lower jaw and caliper body, and lower jaw is fixed on the caliper body; The middle part and the caliper body of upper jaw are rotationally connected through rotating shaft, it is characterized in that: be provided with the wedge that slides at the jaw depth direction in the described caliper body, wedge is connected with and drives the oil cylinder that wedge slides; The end face of wedge is the low inclined-plane of front end, and the side of wedge is provided with chute, and the slide-and-guide face in the chute is parallel with the end face of wedge; Be provided with the axis of guide of slip in the chute; The rear end of upper jaw is provided with the roller on the end face that is pressed in wedge, and roller and wedge are rotationally connected, roller, rotating shaft and axis of guide three's parallel axes; Roller is connected through adapter sleeve with the axis of guide, and adapter sleeve and roller and the axis of guide all are rotationally connected.

2. hydraulic clamp according to claim 1 is characterized in that: described caliper body is the U-lag body, and the two ends of rotating shaft are connected with the cell wall of the both sides of caliper body, and wedge and adapter sleeve are arranged in the groove of caliper body.

3. hydraulic clamp according to claim 1 and 2; It is characterized in that: the said clamp bar that is fixed on the caliper body rear end that includes; The cylinder body of oil cylinder is fixed on the rear end of clamp bar; Be provided with the connecting rod of slip in the clamp bar, the front end of connecting rod is connected with wedge, and the rear end of connecting rod is connected with the piston rod of oil cylinder.