Pressurizing jaw chuck

Abstract

The utility model relates to a pressurizing clamping jaw chuck which is provided with a body, a clamping jaw mechanism, an opening and closing mechanism and a driving mechanism are arranged on the body, the driving mechanism can drive the clamping jaw mechanism to be opened and closed through the opening and closing mechanism, the driving mechanism comprises an air cylinder, and an output shaft of the air cylinder is sleeved with a pressurizing spring. The pressurization spring is additionally arranged on the output shaft of the air cylinder of the driving mechanism, the output force of the air cylinder can be effectively increased through the pressurization spring, the clamping force of the clamping jaw mechanism is improved, self-adaptive pressurization can be achieved through the pressurization spring, when a small-size pipe fitting is clamped, the stroke of the clamping jaw is large, and the extension amplitude of the output shaft of the air cylinder is larger. When a large-size pipe fitting is clamped, the stroke of the clamping jaw is small, the stretching amplitude of the output shaft of the air cylinder is smaller, the compression amplitude of the spring is large, the provided extra pressure is large, and under the normal condition, the larger the size of the pipe fitting is, the larger the clamping force is needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping equipment technical field, especially a kind of pressurization dog chuck. BACKGROUND

[0002] Chuck is a kind of clamping equipment, the workpiece to be processed is clamped by controlling the movement of dog mechanism, driving mechanism is driven to move dog mechanism by setting driving mechanism in chuck, the prior art is to set rack on the side of dog seat at the bottom of clamping mechanism, driving mechanism is driven rack by gear, so as to control the movement of dog seat, so as to realize the opening and closing of dog.

[0003] With the development of technology, the production efficiency of product is faster and faster, which is reflected on the equipment with higher inertia and higher feed, which also requires higher clamping force of chuck, and the clamping force of existing chuck is mainly provided by cylinder, and increasing clamping force means that larger cylinder needs to be replaced, in addition to considering cost problem, it is also difficult to realize the increase of cylinder volume in the limited space of chuck. SUMMARY

[0004] In view of the above problems, the utility model aims at providing a kind of pressurization dog chuck, can effectively improve the clamping force of dog.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a kind of pressurization dog chuck, with body, the body is equipped with dog mechanism, opening and closing mechanism and driving mechanism, the driving mechanism can drive dog mechanism to open and close by opening and closing mechanism, the driving mechanism includes cylinder, the output shaft of the cylinder is equipped with pressurization spring.

[0006] In the above technical scheme, the end of the output shaft of the cylinder is equipped with spring seat, and the outer end of the pressurization spring is installed on the spring seat.

[0007] In the above technical scheme, the spring seat is equipped with mounting step, and the outer end of the pressurization spring is installed on the mounting step.

[0008] In the above technical scheme, the inner end of the pressurization spring abuts against and is installed on the end cover of the cylinder.

[0009] In the above technical scheme, the end cover of the cylinder is equipped with limiting groove, and the inner end of the pressurization spring is embedded in the limiting groove.

[0010] In the above technical scheme, the driving mechanism includes cylinder and linkage wheel, the output shaft of the cylinder is drivingly connected to the linkage wheel, and the linkage wheel is drivingly connected to the opening and closing mechanism through the bridge gear.

[0011] In summary, the technical scheme of the utility model has the beneficial effects compared with the traditional technical means: the utility model adds a booster spring on the output shaft of the driving mechanism cylinder, and the booster spring can effectively increase the force output by the cylinder, thereby improving the clamping force of the claw mechanism, and the clamping force can be additionally increased by 80% in actual use.

[0012] Moreover, the booster spring can also adaptively increase the pressure, when clamping small-size pipe fittings, the claw stroke is large, the extension amplitude of the cylinder output shaft is larger, the spring compression amplitude is small, and the additional pressure provided is small, when clamping large-size pipe fittings, the claw stroke is small, the extension amplitude of the cylinder output shaft is smaller, the spring compression amplitude is large, and the additional pressure provided is large, and under normal circumstances, the larger the size of the pipe fitting, the larger the clamping force required. BRIEF DESCRIPTION OF DRAWINGS

[0013] The foregoing and other objects, features and advantages of the utility model will become more apparent from the following detailed description, when taken in conjunction with the accompanying drawings in which:

[0014] Figure 1 It is a schematic view of the utility model in perspective structure;

[0015] Figure 2 It is a schematic view of the utility model in perspective structure without shell;

[0016] Figure 3 It is a schematic view of the utility model in perspective structure without shell; Figure 2

[0017] Figure 4 It is a schematic view of the utility model in perspective structure without shell; Figure 2

[0018] It is a schematic view of the utility model in perspective structure without shell; Figure 5

[0019] The reference signs are as follows: 100, the body; 200, the claw mechanism; 300, the opening and closing mechanism; 310, the overbridge gear; 400, the driving mechanism; 410, the cylinder; 411, the output shaft; 420, the booster spring; 430, the spring seat; 431, the mounting step; 440, the linkage wheel. DETAILED DESCRIPTION

[0020] The following is based on the ideal embodiment of the utility model for inspiration, through the following description, the relevant staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and must be determined according to the scope of claims.

[0021] The utility model is further described with reference to the following drawings: ​​

[0022] As Figures 1-5 shown, a kind of pressurized jaw chuck, with body 100, which is equipped with jaw mechanism 200, opening and closing mechanism 300 and drive mechanism 400, drive mechanism 400 can drive jaw mechanism 200 opening and closing by opening and closing mechanism 300, drive mechanism 400 includes cylinder 410, the output shaft 411 of cylinder 410 is equipped with pressurized spring 420.

[0023] The end of the output shaft 411 of the cylinder 410 is provided with a spring seat 430, and the outer end of the pressurized spring 420 is mounted on the spring seat 430.

[0024] The spring seat 430 is provided with a mounting step 431, and the outer end of the pressurized spring 420 is mounted on the mounting step 431.

[0025] As Figure 3 shown, the inner end of the pressurized spring 420 abuts against and is mounted on the end cover of the cylinder 410.

[0026] The end cover of the cylinder 410 is provided with a limiting groove, and the inner end of the pressurized spring 420 is embedded in the limiting groove.

[0027] The drive mechanism 400 includes a cylinder 410 and a linkage wheel 440, the output shaft 411 of the cylinder 410 is drivingly connected to the linkage wheel 440, and the linkage wheel 440 is drivingly connected to the opening and closing mechanism 300 through the bridge gear 310.

[0028] The above only is the preferred embodiment of the present application and does not limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressurized collet chuck, having a body, a collet mechanism, an opening and closing mechanism and a driving mechanism are arranged on the body, the driving mechanism can drive the collet mechanism to open and close through the opening and closing mechanism, characterized in that: The driving mechanism comprises a cylinder, and a booster spring is sleeved on an output shaft of the cylinder.

2. The power clamp chuck of claim 1, wherein, An end of the output shaft of the cylinder is provided with a spring seat, and an outer end of the booster spring is mounted on the spring seat.

3. The power clamp chuck of claim 2, wherein, The spring seat is provided with a mounting step, and the outer end of the booster spring is mounted on the mounting step.

4. The power clamp chuck of claim 1, wherein, An inner end of the booster spring abuts against and is mounted on an end cover of the cylinder.

5. The power clamp chuck of claim 4, wherein, The end cover of the cylinder is provided with a limiting groove, and the inner end of the booster spring is embedded in the limiting groove.

6. The power clamp chuck of claim 1, wherein, The driving mechanism comprises a cylinder and a linkage wheel, the output shaft of the cylinder is drivingly connected to the linkage wheel, and the linkage wheel is drivingly connected to the opening and closing mechanism through a bridge gear.

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