CN103406603A - Elastic locating and locking device for milled teeth of bevel gear shaft - Google Patents

Abstract

The invention relates to the technical field of bevel gear shaft processing, in particular to an elastic positioning and locking device for milling teeth of a bevel gear shaft. The traditional processing is to directly install the workpiece in the milling tire, and then use the tie rod to tighten the workpiece before processing. This clamping method makes the gap between the workpiece and the milling tire impossible to guarantee, resulting in poor processing quality. The invention is composed of a milling carcass, a sleeve, a locking spring sleeve, a plug and a positioning spring sleeve. The right end of the milling carcass and the left half of the sleeve are threaded and connected together; the locking spring sleeve with an open groove is put into the sleeve, and the locking spring sleeve and the front and rear sections of the sleeve are set as clearance fit contacts. The left end of the barrel cooperates with the taper surface of the left end of the locking spring sleeve, and the outer taper surface of the left end of the locking spring sleeve can move axially along the inner taper surface of the left end of the sleeve; one end of the plug and the locking spring sleeve are threaded and connected together; the teeth are milled The front end of the carcass is equipped with a positioning spring sleeve with an open groove. The invention has high positioning precision, simple operation and convenient use.

Description

Elastic Positioning and Locking Device for Bevel Gear Shaft Milling Teeth

technical field

The invention relates to the technical field of bevel gear shaft processing, in particular to an elastic positioning and locking device for milling teeth of a bevel gear shaft.

Background technique

At present, in the existing technology, the milling of bevel gear shafts adopts traditional processing methods. The traditional processing method is to directly load the workpiece into the milling tire, and then use the pull rod to tighten the workpiece before processing. The workpiece and the milling tire have a clearance fit. Due to the disadvantages of the clearance fit, the machining accuracy of parts with a large fit clearance cannot be guaranteed, and the workpiece with a small fit clearance is not easy to load and unload. Therefore, this processing method is far from meeting the current high-quality product design requirements, with poor processing accuracy, low production efficiency, and inconvenient operation.

Contents of the invention

In order to solve the above existing problems, the present invention provides a bevel gear shaft milling teeth elastic positioning and clamping device with high product positioning accuracy, simple operation and convenient use.

The technical solution adopted by the present invention to solve the technical problem is: the bevel gear shaft milling elastic positioning locking device is composed of a milling carcass 1, a sleeve 2, a locking spring sleeve 3, a plug 4, and a positioning spring sleeve 5. The right end of the milling carcass 1 and the left half of the sleeve 2 are threaded and connected together; the locking spring sleeve 3 with an open groove is put into the sleeve 2, and the locking spring sleeve 3 and the sleeve 2 have a section at the front and rear respectively. For clearance fit contact, the left end of the sleeve 2 cooperates with the left end taper surface of the locking spring sleeve 3, and the outer taper surface of the left end of the locking spring sleeve 3 can move axially along the inner taper surface of the left end of the sleeve 2; one end of the plug 4 is locked with the locking The spring sleeve 3 is threaded and connected together; the front end of the milling carcass 1 is equipped with a positioning spring sleeve 5 with an open groove. ; The bevel gear shaft 6 is loaded into the inner hole of the milling carcass 1, and the milling carcass 1 is fixed on the end face of the main shaft of the machine tool with bolts; the other end of the plug 4 is connected with the hydraulic system of the machine tool.

The beneficial effect of the invention is that, since the positioning spring sleeve does not generate friction with the workpiece, it is convenient to assemble and disassemble. Moreover, the positioning accuracy is high, the operation is simple, and the use is convenient. The device can quickly realize the positioning, clamping and processing of the workpiece. Especially suitable for mass production.

Description of drawings

Fig. 1 is a structural diagram of the bevel gear shaft milling tooth elastic positioning and locking device of the present invention.

Detailed ways:

It can be seen from Fig. 1 that the elastic positioning and locking device for bevel gear shaft milling is composed of a milling carcass 1, a sleeve 2, a locking spring sleeve 3, a plug 4, and a positioning spring sleeve 5. The right end of the milling carcass 1 and the left half of the sleeve 2 are threaded and connected together; the locking spring sleeve 3 with an open groove is put into the sleeve 2, and the locking spring sleeve 3 and the sleeve 2 have a section at the front and rear respectively. For clearance fit contact, the left end of the sleeve 2 cooperates with the left end taper surface of the locking spring sleeve 3, and the outer taper surface of the left end of the locking spring sleeve 3 can move axially along the inner taper surface of the left end of the sleeve 2; one end of the plug 4 is locked with the locking The spring sleeve 3 is threaded and connected together; the front end of the milling carcass 1 is equipped with a positioning spring sleeve 5 with an open groove. ; The bevel gear shaft 6 is loaded into the inner hole of the milling carcass 1, and the milling carcass 1 is fixed on the end face of the main shaft of the machine tool with bolts; the other end of the plug 4 is connected with the hydraulic system of the machine tool.

During work, the milling tooth carcass 1 is fixed on the end face of the main shaft of the machine tool with bolts, and the other end of the plug 4 is connected with the hydraulic system of the machine tool. Wipe the workpiece 6 clean and gently put it into the inner hole of the positioning spring sleeve 5. When the machine tool gives oil pressure, the screw plug 4 drives the locking spring sleeve 3 to move to the right. Since the sleeve 2 is fixed, the locking spring sleeve 3 Under the action of the inclined surface, the opening groove is contracted, the workpiece is automatically locked first, and then the workpiece 6 is driven to move to the right together. The workpiece 6 moves to the right to compress the positioning spring sleeve 5 and expand it, eliminating the need for milling carcass 1 and positioning The gap between the spring sleeve 5, the workpiece 6 and the positioning spring sleeve 5 plays the role of precise positioning. At this time, the workpiece 6 can be processed. After the workpiece is processed, the oil pressure is released, and the plug 4 and the locking spring Cover 3 loses external force simultaneously, and workpiece is loosened, and positioning spring cover 5 loses effect after workpiece is loosened, just can take out workpiece.

It should be understood that the above detailed description of the technical solution of the present invention with the aid of preferred embodiments is illustrative rather than restrictive. Those skilled in the art can modify the technical solutions described in the embodiments on the basis of reading the description of the present invention, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions Deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (4)

1. A bevel gear shaft milling tooth elastic positioning and locking device is characterized in that: it consists of a milling tooth carcass (1), a sleeve (2), a locking spring sleeve (3), a plug (4), and a positioning spring sleeve (5); the right end of the milling carcass (1) and the left half of the sleeve (2) are screwed together; the locking spring sleeve (3) with an open groove is put into the sleeve (2), The locking spring cover (3) and the sleeve (2) have a section in the front and back respectively set as a gap fit contact, the left end of the sleeve (2) cooperates with the left end taper of the locking spring cover (3), and the locking spring cover (3) The outer tapered surface at the left end can move axially along the inner tapered surface at the left end of the sleeve (2); one end of the plug (4) and the locking spring sleeve (3) are threadedly connected together; the front end of the milling carcass (1) is equipped with The positioning spring sleeve (5) with an open groove, the taper of the inner hole at the front end of the milling carcass (1) is consistent with the outer conicity of the positioning spring sleeve (5), and is processed by matching grinding; the bevel gear shaft (6) is installed into the milling tire In the inner hole of the body (1), the milling tooth body (1) is fixed on the end face of the main shaft of the machine tool with bolts; the other end of the plug (4) is connected with the hydraulic system of the machine tool. 2. The bevel gear shaft milling tooth elastic positioning and locking device according to claim 1, characterized in that: the inner hole of the front end of the milling tooth carcass (1) and the outer circle of the positioning spring sleeve (5) are processed by matching grinding The taper is 2.5 to 3.5 degrees. 3. The bevel gear shaft milling tooth elastic positioning and locking device according to claim 1 is characterized in that: there are 6 opening slots in the locking spring sleeve (3), which are evenly distributed on the left end of the locking spring sleeve (3) , the length of the slot is 4/5 of the length of the locking spring sleeve (3). 4. The bevel gear shaft milling tooth elastic positioning and locking device according to claim 1 is characterized in that: there are 6 opening slots in the positioning spring sleeve (5), and the intersections are evenly distributed on the left and right sides of the positioning spring sleeve (5). end, the slot length is 4/5 of the length of the positioning spring sleeve (5).

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