Internal tooth grinding clamp

Abstract

The utility model discloses an internal tooth grinding clamp which comprises a base, a clamping jaw is arranged on the upper portion of the base, a liquid expansion clamp is fixed on the upper portion of the clamping jaw, a positioning disc and a forcing screw are arranged in the middle of the liquid expansion clamp, a pressing plate is arranged on the end face of the liquid expansion clamp, and a screw A and a spring are arranged in an inner hole of the pressing plate. A screw B is arranged on the lower portion of the base, a T-shaped block is arranged at the bottom of the screw B, oil pressure is provided through the pressurizing screw and converted into the hydraulic expansion clamp so as to clamp the gear, and the gear is pressed through the pressing plate. The hydraulic expansion clamp is matched with the pressing plate, so that the effect of fixing the gear is achieved, gears with different inner diameters can be clamped, and the practicability of the whole clamp is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of inner tooth grinding clamps, belong to machining technical field. BACKGROUND

[0002] With the development of machining industry, precision and automation are important development trends. The gear industry, which is widely used, also faces this development trend, and high-precision and efficient automation is the goal of gear enterprise transformation and upgrading. The key to achieving this goal is the fixture, which needs to have the characteristics of flexible clamping, good stability, cost-effectiveness, etc. For the existing fixture, a large number of improvement suggestions have been accumulated through long-term verification and digestion, laying the foundation for the innovation of new structures.

[0003] The existing gear grinding fixture needs to be debugged and aligned before each changeover, and the angular positioning is not accurate, which is time-consuming. In addition, the traditional gear grinding precision is insufficient, etc. In order to save the time required for clamping and unloading workpieces and achieve accurate angular positioning, we propose a kind of inner tooth grinding clamp. SUMMARY

[0004] The utility model aims at providing a kind of inner tooth grinding clamp to solve the problems raised in the above background.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An inner tooth grinding clamp, comprising a base, the base upper portion is provided with a claw, the claw upper portion is fixed with a liquid expansion clamp, the liquid expansion clamp is provided with a positioning disc and a pressure screw in the middle, the end face is provided with a pressure plate, the pressure plate inner hole has screw A and spring; The lower part of the base is provided with screw B, the bottom of screw B is provided with T-shaped block, oil pressure is provided by pressure screw, which is converted to the inside of liquid expansion clamp to clamp the gear, and the gear is pressed by the pressure plate.

[0007] Compared with the prior art, the utility model has the advantages that: the utility model cooperates with the pressure plate through the liquid expansion clamp, so as to achieve the effect of fixing the gear, and can clamp gears with different inner diameters, improving the overall practicality of the clamp. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a whole structure schematic view of the utility model;

[0009] In the figure: 1, base; 2 claw; 3, liquid expansion clamp; 4, support; 5, pressure plate; 6, gear; 7, T-shaped block; 8, screw B; 9, spring; 10, screw A; 11, pressure screw. DETAILED DESCRIPTION

[0010] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0011] The inner tooth grinding fixture comprises a base 1, a clamping jaw 2 arranged on the upper portion of the base 1, a liquid expansion clamp 3 fixed on the upper portion of the clamping jaw 2, a positioning disc 4 and a press screw 11 arranged in the middle of the liquid expansion clamp 3, a pressing plate 5 arranged on the end face of the liquid expansion clamp 3, and a screw A10 and a spring 9 arranged in the inner hole of the pressing plate 5; a screw B8 is arranged on the lower portion of the base 1, a T-shaped block 7 is arranged on the bottom of the screw B8, oil pressure is provided by manually rotating the press screw 11, the liquid expansion clamp 3 is converted inside to clamp the gear 6, and the gear is pressed by the pressing plate 5, so that the practicability and rigidity of the whole fixture can be improved.

[0012] The above is the preferred embodiment of the present application, and for those skilled in the art, according to the teaching of the present application, the changes, modifications, replacements and variations of the embodiments without departing from the principles and spirits of the present application still fall into the protection scope of the present application.

Claims

1. An internal tooth grinding fixture, characterized in that, The utility model provides a gear clamping device, including base (1), the upper portion of base (1) is provided with dog (2), the upper portion of dog (2) is fixed with liquid expansion clamp (3), the middle portion of liquid expansion clamp (3) is provided with positioning disc (4) and pressurizing screw (11), and the end surface of pressurizing screw (11) is equipped with pressure plate (5), the inner hole of pressure plate (5) has screw A (10) and spring (9);The lower portion of base (1) is equipped with screw B (8), and the bottom of screw B (8) is equipped with T-shaped block (7), oil pressure is provided by pressurizing screw (11), is converted to the inside of liquid expansion clamp (3) to thereby clamps gear (6), and is pressed to gear by pressure plate (5).

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