CN210937201U

CN210937201U - Eccentric clamp

Info

Publication number: CN210937201U
Application number: CN201921594733.7U
Authority: CN
Inventors: 李培华; 李世波
Original assignee: Chongqing Super Tusi Robot Tools Co ltd
Current assignee: Chongqing Super Tusi Robot Tools Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-07
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to a machine-building technical field specifically discloses an eccentric fixture, the on-line screen storage device comprises a base, be equipped with three slides on the base, be equipped with actuating mechanism in the slide, slide in the slide and be equipped with the slider, the slider is connected with actuating mechanism, the up end and the base up end of slider flush, are equipped with the jack catch seat on the slider, are equipped with the mounting groove on the jack catch seat, and the one end that is close to the base center on the mounting groove runs through the jack catch seat, can dismantle on the mounting groove and be connected with eccentric jack catch, and the length of three eccentric jack catch is different, is equipped with the incomplete columniform inner groovy with part surface profile. The utility model discloses the problem of eccentric clamping part is anticipated to solve.

Description

Eccentric clamp

Technical Field

The utility model relates to a machine-building technical field specifically discloses an eccentric anchor clamps.

Background

At present, the manipulator technology is mature day by day, and the motion mode of manipulator is diversified, can carry out the removal in all directions. The manipulator is mostly used for grabbing, transferring, transporting and fixing parts; however, since the shape and structure of each part are different, the number of types of robot holders is required.

In the related art, a three-jaw chuck is used as a most common clamp, which can also be mounted on a manipulator, and is commonly used for clamping shaft parts. The existing three-jaw chuck can only clamp parts concentrically, and for the processing requirements of part of special-shaped parts, such as eccentric shafts, the existing jaws can not clamp the eccentric shafts eccentrically, so that the eccentric shafts can not be processed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an eccentric anchor clamps to solve the problem of eccentric clamping part.

In order to achieve the above object, the basic scheme of the utility model is:

eccentric fixture, the on-line screen storage device comprises a base, be equipped with three slides on the base, be equipped with actuating mechanism in the slide, the slip is equipped with the slider in the slide, and the slider is connected with actuating mechanism, the up end and the base up end of slider flush, are equipped with the jack catch seat on the slider, are equipped with the mounting groove on the jack catch seat, and the one end that is close to the base center on the mounting groove runs through the jack catch seat, can dismantle on the mounting groove and be connected with eccentric jack catch, and the length of three eccentric jack catch is different, is equipped with the incomplete columniform inner groovy with the part.

Optionally, the upper end of the slider is provided with a first clamping groove for accommodating the jaw seat, a first mounting plate is arranged on the side wall of the lower portion of the jaw seat, the first mounting plate abuts against the upper end face of the slider, and first screw holes are formed in the first mounting plate and the slider.

Optionally, a T-shaped second clamping groove is formed in the side wall of the mounting groove, a T-shaped second clamping block is arranged on the side wall of the eccentric clamping jaw, and the second clamping block can be inserted into the second clamping groove; and first connecting plates are arranged at two ends of the second clamping groove, second connecting plates are arranged at two ends of the second clamping block, and second screw holes are formed in the first connecting plates and the second connecting plates.

Optionally, actuating mechanism includes cylinder and air pump, the cylinder includes cylinder body, first piston and piston rod, first piston sliding seal sets up in the cylinder body, the one end and the piston fixed connection of piston rod, and the other end and the jack catch seat of piston rod can be dismantled and be connected, be equipped with the trachea on the air pump, trachea and cylinder intercommunication.

Optionally, a first spring is arranged in the cylinder body, one end of the first spring is connected with the first piston, and the other end of the first spring is connected with the inner wall of the cylinder body; the side wall of the cylinder body is communicated with a branch pipe, a second piston is connected in the branch pipe in a sliding and sealing mode, a switch is further arranged in the branch pipe, the second piston can abut against the switch, a second spring is arranged on the second piston and connected with the inner wall of the branch pipe, and the stiffness coefficient of the second spring is larger than that of the first spring; the air pipe is provided with an electromagnetic valve which is connected with the switch in series.

The working principle and the beneficial effects of the basic scheme are as follows:

the eccentric jack catch of different models can be installed on the jack catch seat in this scheme, and the length of eccentric jack catch, the shape of inner groovy etc. can all predetermine according to the clamping part, and the different eccentric jack catches of change during the different parts of centre gripping can.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the construction of a first connecting plate and a second connecting plate;

fig. 3 is a transverse sectional view of the cylinder.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a base 1, a slide way 2, a cylinder 3, a sliding block 4, a jaw seat 5, a first mounting plate 6, an eccentric jaw 7, an inner groove 8, a second clamping block 9, a cylinder body 10, a first piston 11, a piston rod 12, a first spring 13, a branch pipe 14, a second piston 15, a switch 16, an air pipe 17, a second spring 18, a first connecting plate 19 and a second connecting plate 20.

Example one

This embodiment is substantially as shown in fig. 1, 2 and 3:

eccentric anchor clamps are equipped with three slides 2 on the base 1 including base 1, are equipped with actuating mechanism in the slide 2, slide 2 in and slide and be equipped with slider 4, slider 4 is connected with actuating mechanism, the up end of slider 4 flushes with the 1 up end of base. The up end of slider 4 is equipped with first draw-in groove, and the card is gone into in the first draw-in groove has jaw seat 5, and the fixed first mounting panel 6 that is equipped with of lower part lateral wall of jaw seat 5 upper level, and first mounting panel 6 offsets with the up end of slider 4, all is equipped with first screw on first mounting panel 6 and the slider 4, and the screw is equipped with the screw in the first screw. Be equipped with the mounting groove on the jack catch seat 5, the one end that is close to base 1 center on the mounting groove runs through jack catch seat 5, can dismantle on the mounting groove and be connected with eccentric jack catch 7, and the length of three eccentric jack catch 7 is different, is equipped with the incomplete columniform inner groovy 8 with the profile modeling of part surface on the one side that three eccentric jack catch 7 is relative. The detachable connection mode of the mounting groove and the eccentric clamping jaw 7 is as follows: the lateral wall of the mounting groove is transversely provided with a T-shaped second clamping groove, the lateral wall of the eccentric clamping jaw 7 is transversely and fixedly provided with a T-shaped second clamping block 9, and the second clamping block 9 can be inserted into the second clamping groove. The two ends of the second clamping groove are fixedly provided with first connecting plates 19, the two ends of the second clamping block 9 are provided with second connecting plates 20, the first connecting plates 19 abut against the second connecting plates 20, second screw holes are formed in the first connecting plates and the second connecting plates, and screws are connected to the second screw holes through threads.

The driving mechanism comprises a cylinder 3 and an air pump, the cylinder 3 comprises a cylinder body 10, a first piston 11 and a piston rod 12, the first piston 11 is arranged in the cylinder body 10 in a sliding sealing mode, one end of the piston rod 12 is fixedly connected with the piston, and the other end of the piston rod 12 is fixedly connected with the jaw seat 5. A first spring 13 is arranged in the cylinder body 10, one end of the first spring 13 is fixedly connected with the first piston 11, and the other end of the first spring 13 is fixedly connected with the inner wall of the cylinder body 10; the side wall of the cylinder body 10 is communicated with a branch pipe 14, a second piston 15 is connected in the branch pipe 14 in a sliding and sealing mode, a switch 16 is further fixedly arranged in the branch pipe 14, and the second piston 15 can abut against the switch 16. The second piston 15 is fixedly provided with a second spring 18, the second spring 18 is fixedly connected with the inner wall of the branch pipe 14, and the stiffness coefficient of the second spring 18 is larger than that of the first spring 13. An air pipe 17 is arranged on the air pump, the air pipe 17 is communicated with the air cylinder 3, an electromagnetic valve is arranged on the air pipe 17, and the electromagnetic valve is connected with the switch 16 in series.

The specific implementation process is as follows:

the air pump injects air into the cylinder body 10 through the air pipe 17, the air pressure in the cylinder body 10 is gradually increased, the first piston 11 gradually moves outwards, the eccentric clamping jaws 7 are pushed to the part by the first piston 11 rod, and the part is fixed by the eccentric clamping jaws 7. The eccentric claw 7 cannot move continuously after contacting with the part, the air pressure in the cylinder body 10 is gradually increased until the air pressure is larger than the force application required by the deformation of the second spring 18, the second piston 15 starts to move and extrudes the switch 16, the switch 16 controls the closing of the electromagnetic valve, the air pipe 17 and the air in the cylinder body 10 cannot flow out, the air pressure in the air pipe is kept stable, and the part clamping is completed. Because the lengths of the three eccentric clamping jaws 7, the shapes of the inner grooves 8 and the like are different, when the three eccentric clamping jaws 7 clamp a part, the part deviates from the center of the base 1 to finish eccentric clamping.

When the eccentric clamping jaw 7 needs to be disassembled, the screws on the first connecting plate 19 and the second connecting plate 20 are taken out, and then the eccentric clamping jaw 7 slides out of the clamping jaw seat 5 so as to disassemble the eccentric clamping jaw 7.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.

Claims

1. Eccentric anchor clamps, its characterized in that: the base is provided with three slides, a driving mechanism is arranged in the slides, a slide block is arranged in the slides in a sliding manner and is connected with the driving mechanism, the upper end face of the slide block flushes with the upper end face of the base, a jaw seat is arranged on the slide block, a mounting groove is formed in the jaw seat, one end, close to the center of the base, of the mounting groove penetrates through the jaw seat, an eccentric jaw is detachably connected to the mounting groove, the length of the three eccentric jaw is different, and an incomplete cylindrical inner groove which is formed by copying the outer surface of a part is formed in one side, opposite to the three eccentric.

2. The eccentric clamp of claim 1, wherein: the upper end of slider is equipped with the first draw-in groove that is used for holding the jack catch seat, is equipped with first mounting panel on the lower part lateral wall of jack catch seat, and first mounting panel offsets with the up end of slider, all is equipped with first screw on first mounting panel and the slider.

3. The eccentric clamp of claim 2, wherein: a T-shaped second clamping groove is formed in the side wall of the mounting groove, a T-shaped second clamping block is arranged on the side wall of the eccentric clamping jaw, and the second clamping block can be inserted into the second clamping groove; and first connecting plates are arranged at two ends of the second clamping groove, second connecting plates are arranged at two ends of the second clamping block, and second screw holes are formed in the first connecting plates and the second connecting plates.

4. The eccentric clamp of claim 3, wherein: actuating mechanism includes cylinder and air pump, the cylinder includes cylinder body, first piston and piston rod, first piston sliding seal sets up in the cylinder body, the one end and the piston fixed connection of piston rod, and the other end and the jack catch seat of piston rod can be dismantled and be connected, be equipped with the trachea on the air pump, trachea and cylinder intercommunication.

5. The eccentric clamp of claim 4, wherein: a first spring is arranged in the cylinder body, one end of the first spring is connected with the first piston, and the other end of the first spring is connected with the inner wall of the cylinder body; the side wall of the cylinder body is communicated with a branch pipe, a second piston is connected in the branch pipe in a sliding and sealing mode, a switch is further arranged in the branch pipe, the second piston can abut against the switch, a second spring is arranged on the second piston and connected with the inner wall of the branch pipe, and the stiffness coefficient of the second spring is larger than that of the first spring; the air pipe is provided with an electromagnetic valve which is connected with the switch in series.