CN204458647U - Adjustable clamping device - Google Patents

Abstract

The utility model discloses an adjustable clamping device, which comprises a fixed seat, a fixed shaft connected to the fixed seat, a clamping cylinder and a piston; at least a part of the fixed shaft is a threaded section, and the threaded sleeve of the piston Connected to the threaded section of the fixed shaft; the clamping cylinder is movably fitted on the piston, and can move relative to the piston along the axial direction of the fixed shaft toward or away from the fixed seat under the action of a driving force. The utility model can adjust the positions of the piston and the clamping cylinder by connecting the piston thread on the thread section of the fixed shaft, so that it can be used to compress molds of different specifications, which can effectively save costs; moreover, it can also improve efficiency; In addition, the clamping operation of the utility model is simple and convenient, which is beneficial to popularization.

Description

Adjustable Clamping Device

technical field

The utility model relates to an adjustable clamping device.

Background technique

The existing clamping device mainly includes a fixing seat and a clamping part. The clamping part can be in the first position close to the fixing seat to tighten the mold on the fixing seat and the second position away from the fixing seat to loosen the mold on the fixing seat. Movement between two positions, but since the movement range of the clamping part is generally fixed, and the first position and the second position also remain unchanged, the same clamp can generally only be used to clamp the same clamp. specifications of the mold. During use, if it is necessary to use molds of different specifications, different clampers need to be equipped, resulting in high cost.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide an adjustable clamping device, which can adjust the positions of the piston and the clamping cylinder, so that it can be used to clamp molds of different specifications, and can effectively save costs.

In order to solve the above problems, the technical scheme adopted in the utility model is as follows:

The adjustable clamping device includes a fixed base, a fixed shaft connected to the fixed base, a clamping cylinder, and a piston; at least a part of the fixed shaft is a threaded section, and the piston is threaded on the threaded section of the fixed shaft Above; the clamping cylinder is movably fitted on the piston, and can move relative to the piston along the axial direction of the fixed shaft toward or away from the fixed seat under the action of a driving force.

A return spring is installed between the piston and the clamping cylinder, and the return spring is used to provide a driving force for the clamping cylinder to move away from the fixed seat; the clamping cylinder cooperates with the piston to form a Inject fluid or gas to use the fluid or gas to apply driving force to the clamping cylinder to move the clamping cylinder towards the fixed seat.

The clamping cylinder includes a main sleeve body and a rod sleeve threadedly connected in the main sleeve body; the return spring resists between the rod sleeve and the piston.

The adjustable clamping device also includes a locking member for locking the piston on the fixed shaft.

A guiding structure is formed between the clamping cylinder and the piston to make the piston rotate along with the clamping cylinder.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model can adjust the position of the piston and the clamping cylinder by connecting the piston thread on the thread section of the fixed shaft, so that it can be used to clamp molds of different specifications, which can effectively save costs; It can also save time and improve efficiency by replacing different clamping devices according to the mold; in addition, the clamping operation of the utility model is simple and convenient, which is beneficial to popularization.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Wherein, 2, fixed shaft; 3, piston; 4, clamping cylinder body; 41, main casing body; 42, rod sleeve; 5, return spring; 6, locking member; 7, movable chamber.

Detailed ways

In the following, the utility model will be further described in combination with the accompanying drawings and specific implementation methods, so as to understand more clearly the technical idea claimed by the utility model.

As shown in Figure 1, it is an adjustable clamping device of the present invention, including a fixed seat, a fixed shaft 2 connected to the fixed seat, a clamping cylinder 4, and a piston 3; at least a part of the fixed shaft 2 is The threaded section, the piston 3 is threaded on the threaded section of the fixed shaft 2; the clamping cylinder 4 is movably fitted on the piston 3, and can be moved along the axial direction of the fixed shaft 2 relative to the piston 3 under the action of the driving force Move towards or away from the fixed seat. Wherein, the length of the threaded section directly determines the adjustment range of the piston 3, thus, it can be set according to actual needs.

The utility model can rotate the piston 3 along the threaded section by threading the piston 3 on the threaded section of the fixed shaft 2, thereby adjusting the positions of the piston 3 and the clamping cylinder 4, and can be used for pressing molds of different specifications. While in use, by utilizing the clamping cylinder 4 to move towards or away from the fixed seat, the mold on the fixed seat can be tightened or loosened.

Preferably, a return spring 5 is installed between the piston 3 and the clamping cylinder 4, and the return spring 5 is used to provide a driving force that urges the clamping cylinder 4 to move away from the fixed seat; the clamping cylinder The body 4 cooperates with the piston 3 to form an active cavity 7 for introducing fluid or gas to apply a driving force to the clamping cylinder 4 to move the clamping cylinder 4 toward the fixed seat. The utility model is beneficial to reduce the manufacturing cost by adopting the above structure. When in use, fluid or gas can be introduced into the movable chamber 7 to use the pressure of the fluid or gas as the driving force to push the clamping cylinder 4 to move toward the fixed seat, and when the fluid or gas in the movable chamber 7 When being removed, the clamping cylinder 4 moves away from the fixed seat under the action of the return spring 5 .

Preferably, the clamping cylinder 4 includes a main sleeve body 41 and a rod sleeve 42 threaded in the main sleeve body 41 ; the return spring 5 abuts between the rod sleeve 42 and the piston 3 . By adopting the above structure, installation can be facilitated.

Preferably, the adjustable clamping device further includes a locking member 6 for locking the piston 3 on the fixed shaft 2 . And when the piston 3 is adjusted in place on the threaded section of the fixed shaft 2, the installation stability of the piston 3 can be further improved by using the locking member 6 to lock the piston 3 on the fixed shaft 2. Wherein, the locking member 6 in the utility model can adopt any existing locking member 6, as long as the piston 3 can be locked on the fixed shaft 2 and get final product. For example, the locking member 6 can be a hoop connected to the piston 3 .

Preferably, a guide structure is formed between the clamping cylinder 4 and the piston 3 for urging the piston 3 to rotate along with the clamping cylinder 4 . By adopting the guide structure, the clamping cylinder 4 can be rotated directly during the adjustment process, so that the piston 3 can rotate on the threaded section along with the clamping cylinder 4, so that the rotation operation of the piston 3 is simpler and more convenient. Wherein, the guide structure may include a groove arranged on the clamping cylinder 4 and extending axially along the fixed shaft 2, a flange arranged on the piston 3 and matched with the groove, or the guide structure may It includes a protrusion arranged on the clamping cylinder 4 and extending axially along the fixed shaft 2, and a concave position arranged on the piston 3 and matched with the protrusion. Of course, in addition to the above structure, the guide structure can adopt other structures, as long as the piston 3 can rotate with the clamping cylinder 4 .

Before use, the user can rotate the clamping cylinder 4 according to the specifications of the mold, so as to drive the piston 3 to rotate through the clamping cylinder 4, so that the piston 3 can move on the threaded section of the fixed shaft 2, and the piston 3 and the Clamp cylinder 4 position. After the piston 3 is moved in place, the locking member 6 can be used to lock the piston 3 on the fixed shaft 2 . When in use, first place the mold on the fixed seat, and then pass gas (or fluid) into the movable cavity 7, and the pressure of the gas can be used to push the clamping cylinder 4 to move toward the fixed seat, so that it can be used The clamping cylinder 4 tightens the mold on the fixed seat; and when there is no gas in the movable cavity 7, the clamping cylinder 4 can move away from the fixed seat under the action of the return spring 5 to loosen the mold. mold.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (5)

1. The adjustable clamping device is characterized in that it includes a fixed seat, a fixed shaft connected to the fixed seat, a clamping cylinder, and a piston; at least a part of the fixed shaft is a threaded section, and the piston is threaded On the threaded section of the fixed shaft; the clamping cylinder is movably fitted on the piston, and can move relative to the piston along the axial direction of the fixed shaft toward or away from the fixed seat under the action of a driving force. 2. The adjustable clamping device according to claim 1, characterized in that: a return spring is installed between the piston and the clamping cylinder, and the return spring is used to provide force for the clamping cylinder to move away from the fixed seat. The driving force for directional movement; the clamping cylinder cooperates with the piston to form an activity for passing in fluid or gas to apply a driving force to the clamping cylinder by fluid or gas to move the clamping cylinder towards the direction of the fixed seat cavity. 3. The adjustable clamping device according to claim 2, characterized in that: the clamping cylinder comprises a main sleeve and a rod sleeve screwed into the main sleeve; between the pistons. 4. The adjustable clamping device according to claim 1, further comprising a locking member for locking the piston on the fixed shaft. 5 . The adjustable clamping device according to claim 1 , wherein a guide structure is formed between the clamping cylinder and the piston for urging the piston to rotate along with the clamping cylinder. 6 .