Zero-point positioning gear grinding clamp

Abstract

A connecting flange is arranged on the upper portion of a zero-point positioning mother disc, a clamp body, a piston and a spring are fixed on the upper portion of the connecting flange, a gear is installed on the outer surface of an expansion sleeve, and the inner conical surface of the expansion sleeve is matched with the clamp body. An upper pull rod is vertically arranged on the inner side of the clamp body, the top of the upper pull rod is matched with the expansion sleeve in a press-fitting mode, a bayonet is formed in the outer surface of the support, the interior of the bayonet is fixedly installed on the clamp body, and a zero-point positioner is installed on the connecting flange and matched with a zero-point positioning mother disc to achieve production changing and positioning. Through the zero point positioner, the zero point positioning mother disc and the connecting flange, rapid positioning and rapid production changing are achieved, so that the effect of fixing gears is achieved, gears with different inner diameters can be clamped, and the overall practicability of the clamp is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a zero point positioning gear grinding fixture and belongs to the technical field of machining. BACKGROUND

[0002] With the development of the 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 high-efficiency automation processing is the goal of the transformation and upgrading of gear enterprises. The key to achieving this goal lies in 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 unclamping workpieces and achieve accurate angular positioning, a zero point positioning gear grinding fixture is proposed. SUMMARY

[0004] The utility model aims at providing a zero point positioning gear grinding fixture to solve the problems raised in the background.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a zero point positioning gear grinding fixture, comprising a zero point positioning master disc, a connecting flange is arranged on the upper part of the zero point positioning master disc, a fixture body, a piston and a spring are fixed on the upper part of the connecting flange, a gear is arranged on the outer surface of the expansion sleeve, and the inner tapered surface of the expansion sleeve cooperates with the fixture body; an upper pull rod is vertically arranged on the inner side of the fixture body, the upper pull rod is in pressure assembly cooperation with the expansion sleeve, a bayonet is arranged on the outer surface of the support, the bayonet is fixedly installed inside the fixture body, a zero point positioner is installed on the connecting flange, and the zero point positioner realizes changeover and positioning by cooperating with the zero point positioning master disc.

[0006] Compared with the prior art, the utility model has the advantages that the utility model realizes rapid positioning and rapid changeover through the zero point positioner, the zero point positioning master disc and the connecting flange, thereby achieving the function of fixing the gear and clamping gears with different inner diameters, and improving the overall practicality of the fixture. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0008] In the figure: 1, zero point positioning master disc; 2, connecting flange; 3, fixture body; 4, upper pull rod; 5, expansion sleeve; 6, support; 7, gear; 8, piston; 9, spring; 10, zero point positioner. DETAILED DESCRIPTION

[0009] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0010] A zero-point positioning gear grinding fixture, comprising a zero-point positioning master disc 1, a connecting flange 2 is arranged on the upper portion of the zero-point positioning master disc 1, a fixture body 3, a piston 8 and a spring 9 are fixed on the upper portion of the connecting flange 2, a gear 7 is arranged on the outer surface of an expansion sleeve 5, and the inner tapered surface of the expansion sleeve 5 is matched with the fixture body 3; an upper pull rod 4 is vertically arranged on the inner side of the fixture body 3, the upper pull rod 4 is press-fitted with the expansion sleeve 5, a support 6 is provided with a bayonet on the outer surface, the bayonet is fixedly installed on the fixture body 3, a zero-point positioner 10 is installed on the connecting flange 2, and the zero-point positioner 10 realizes production change and positioning by matching with the zero-point positioning master disc 1.

[0011] The utility model discloses a zero-point positioner, zero-point positioning master disc, connecting flange realize quick positioning, quick production change, thereby reach the fixed effect to gear, and can hold the gear of different inner diameter, improved the practicability of fixture whole.

[0012] The above is the preferred embodiment of the utility model, and for the ordinary skilled person in the art, according to the teaching of the utility model, the change, modification, replacement and variation of the embodiment without departing from the principle and spirit of the utility model still fall within the protection scope of the utility model.

Claims

1. A zero-point positioning gear grinding fixture, characterized in that, The utility model relates to a zero point positioning master disc (1) is provided with connecting flange (2) on the upper portion, the connecting flange (2) is fixed with clamp body (3), piston (8) and spring (9) on the upper portion, gear (7) is installed on the outer surface of expansion sleeve (5), and the inner tapered surface of expansion sleeve (5) is matched with clamp body (3), the upper pull rod (4) is vertically arranged in the inner side of clamp body (3), the upper pull rod (4) top is matched with expansion sleeve (5) pressure equipment, and the outer surface of support (6) is equipped with bayonet, and the bayonet is fixedly installed in the inside on clamp body (3), and the zero point positioner (10) is installed on connecting flange (2), and the zero point positioner (10) realizes production change and positioning through cooperation with zero point positioning master disc (1).

Images