CN218817319U

CN218817319U - Parallel cylinder

Info

Publication number: CN218817319U
Application number: CN202221943419.7U
Authority: CN
Inventors: 魏力; 周文豪; 嘉藤荣次
Original assignee: Star Seiki Xiangyang Co ltd
Current assignee: Star Seiki Xiangyang Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-04-07
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to a cylinder field, concretely relates to parallel cylinder. The parallel cylinder comprises a body consisting of two cavities which are arranged in parallel, wherein a piston and a piston rod are arranged in each cavity, a gear is arranged at the joint of the two cavities, a rack meshed with the gear is arranged on each piston rod, and the two piston rods can reciprocate in opposite directions in the same step under the action of the gear; the body is provided with fingers connected with the piston rod, and the fingers can be opened or clamped along with the movement of the piston rod. The utility model provides a parallel cylinder through gear and rack structure, has realized pressing from both sides tight/the complete synchronization that loosens in minimum space, and the high accuracy that the realization clamp that can be fine was got improves production efficiency.

Description

Parallel cylinder

Technical Field

The invention relates to the field of cylinders, in particular to a parallel cylinder.

Background

At present, long-stroke cylinders are used in various automation industries, medicine technologies, mechanical manufacturing and automobile manufacturing industries, but due to long stroke, the cylinders are easy to have the problems of asynchronism and shaking at the tail end of the stroke during clamping.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a new parallel cylinder, this cylinder pass through gear and rack structure, have realized pressing from both sides tight/unclamped complete synchronization in minimum space, and the high accuracy that the realization clamp that can be fine was got improves production efficiency.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a parallel cylinder comprises a body formed by two cavities which are arranged in parallel, wherein a piston and a piston rod are arranged in each cavity, a gear is arranged at the joint of the two cavities, a rack meshed with the gear is arranged on each piston rod, and the two piston rods can reciprocate in opposite directions in the same step under the action of the gear; the body is provided with fingers connected with the piston rod, and the fingers can be opened or clamped along with the movement of the piston rod.

In a preferred embodiment, the finger is connected to the piston rod by a connecting member, and the connecting member includes at least one connecting plate.

In a preferred embodiment, the connecting plate is connected to the piston rod by means of a plug connection.

In a preferred embodiment, the connecting plate is connected with the fingers by means of bolts.

As a preferred embodiment, the parallel cylinder further comprises a guide rod for ensuring smooth movement of the finger.

In a preferred embodiment, two guide rods are provided, and the guide rods are arranged on the body through fingers.

As a preferred embodiment, the cavity is provided with an avoiding hole, the avoiding hole is a waist hole, and the connecting plate reciprocates along the waist hole.

As a preferred embodiment, the two ends of the cavity are both provided with a fixing plate, the fixing plate and the cavity form a sealed space, and the fixing plate is provided with an air inlet and outlet hole.

In a preferred embodiment, a magnet is further provided at an end of the piston rod.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

(1) After the parallel cylinder provided by the utility model is ventilated, due to the structural arrangement of combining the rack and the piston rod into a whole, when the piston in the piston cavity is simultaneously pushed by the cylinder, the complete synchronization of clamping \ opening can be easily realized through the close fit of the gear and the rack;

(2) The connecting plate is connected with the piston rod in an inserting mode, so that the installation is convenient;

(3) The arrangement of the guide mechanism further ensures the clamping accuracy;

(4) The parallel cylinder not only saves the appearance size, but also ensures the precision of the action through reasonable arrangement.

Drawings

Fig. 1 is a schematic perspective view of a parallel cylinder provided in an embodiment of the present invention;

fig. 2 is a cross-sectional view of a parallel cylinder according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a parallel cylinder gear and a piston rod provided in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of the connection between the fingers and the piston rod of the parallel cylinder provided by the embodiment of the present invention.

In the figure, 1 cavity, 2 pistons, 3 piston rods, 4 gears, 5 fingers, 6 connecting plates, 7 guide rods, 8 fixing plates and 9 magnets are arranged.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

As shown in fig. 1-4, a parallel cylinder comprises a body formed by two cavities 1 arranged in parallel, wherein a piston 2 and a piston rod 3 are arranged in each cavity 1, a gear 4 is arranged at the joint of the two cavities 1, a rack meshed with the gear 4 is arranged on each piston rod, and the two piston rods 3 can reciprocate in opposite directions under the action of the gear 4;

the body is provided with a finger 5 connected with the piston rod 3, and the finger 5 can be opened or clamped along with the movement of the piston rod 3.

It can be understood that the piston rod 3 and the rack may be an integral structure or a separate structure, when the piston rod is an integral structure, that is, the side of the piston rod contacting the rack is provided with teeth engaged with the gear, and when the piston rod is a separate structure, the rack is fixed on the piston rod. The structure that piston rod and rack unite two into one has both saved overall dimension in space, has improved the precision of action again, can realize that the high accuracy is got.

The utility model provides a parallel cylinder, the back of ventilating, because rack and piston rod unite two into one structure setting, when having guaranteed that the piston of piston intracavity receives the thrust of cylinder simultaneously, through the inseparable cooperation of gear-rack, light realization presss from both sides tightly \ open complete synchronization, and has saved overall dimension.

Illustratively, the finger 5 is connected to the piston rod 3 by a connecting member comprising at least one connecting plate 6. It can be understood that the connecting plate 6 only needs to be installed on the piston rod 3 and the finger 5 at the same time to realize the connection between the piston rod and the finger 5, and the connecting plate 6 can be fixedly connected with the piston rod 3 and the finger 5 through bolts and other modes at the same time and can also be connected together in other detachable modes.

Illustratively, as shown in fig. 4, the connecting plate 6 is connected with the piston rod 3 by plugging and connected with the finger 5 by bolting.

Illustratively, the cavity 1 is provided with a relief hole which is designed in a waist hole form, and the connecting plate 6 reciprocates along the waist hole. That is, the connecting plate 6 passes through the waist hole and is inserted on the piston rod 3 to drive the finger 5 to move along with the movement of the piston rod 3. The waist hole and the connecting plate 6 form a guide structure similar to a slide block guide rail, and the accuracy of the moving direction of the finger 5 can be ensured.

Illustratively, a guide rod 7 is further arranged on the parallel air cylinder, and the guide rod 7 is used for ensuring the smooth movement of the finger 5. Guide arm 7 can set up two, and guide arm 7 passes finger 5 and installs on the body, and the mode cooperation of this structure and grafting for whole cylinder equipment is convenient, and overall structure is exquisite.

It will be appreciated that the waist opening and the web 6 resemble a guide structure and that the guide bar 7 also acts as a guide structure, whereby the clamping and opening action is well guaranteed without increasing the volume of the device.

It can be understood that the fixing plates 8 can be arranged at two ends of the cavity 1, the fixing plates 8 and the cavity 1 form a sealed space, the fixing plates 8 are provided with air inlet and outlet holes, and two ends of the guide rod 7 can be directly fixed on the fixing plates 8.

Illustratively, the end of the piston rod is also provided with a magnet 9, and the magnet 9 can trigger a magnetic switch arranged on the air cylinder to detect the movement position of the air cylinder.

It is understood that the parallel cylinder may be provided with a gasket or the like as needed, which will not be described in detail herein.

The working principle of the embodiment is as follows: when the clamping device is used, air is respectively fed into the two cavities from the two ends of the body, the two piston rods move in opposite directions under the action of the piston, and clamping/opening synchronization is realized under the further action of the gear and the rack.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A parallel cylinder is characterized by comprising a body formed by two cavities (1) which are arranged in parallel, wherein a piston (2) and a piston rod (3) are arranged in each cavity (1), a gear (4) is arranged at the joint of the two cavities (1), a rack meshed with the gear (4) is arranged on each piston rod (3), and the two piston rods (3) can reciprocate in opposite directions in the same step under the action of the gear (4);

the body is provided with fingers (5) connected with the piston rod (3), and the fingers (5) are opened or clamped along with the movement of the piston rod (3).

2. Parallel cylinder according to claim 1, characterized in that the finger (5) is connected to the piston rod (3) by means of a connection piece comprising at least one connection plate (6).

3. Parallel cylinder according to claim 2, characterized in that the connection plate (6) is connected with the piston rod (3) by means of a plug-in connection.

4. Parallel cylinder according to claim 2 or 3, characterised in that the connection plate (6) is connected with the fingers (5) by means of a screw connection.

5. The parallel cylinder according to claim 1, characterized in that it further comprises a guide rod (7), said guide rod (7) being used to ensure a smooth movement of the finger (5).

6. Parallel cylinder according to claim 5, characterized in that there are two guide rods (7), said guide rods (7) being mounted on the body through the fingers (5).

7. The parallel cylinder according to claim 2 or 3, characterized in that the cavity is provided with an avoiding hole, the avoiding hole is a waist hole, and the connecting plate (6) reciprocates along the waist hole.

8. The parallel cylinder according to claim 1, characterized in that the fixing plates (8) are arranged at both ends of the cavity (1), the fixing plates (8) and the cavity (1) form a sealed space, and the fixing plates (8) are provided with air inlet and outlet holes.

9. Parallel cylinder according to claim 1, characterized in that the end of the piston rod is further provided with a magnet (9).