CN209902744U

CN209902744U - Positioning fixture for eccentric shaft machining of machining center

Info

Publication number: CN209902744U
Application number: CN201920233492.7U
Authority: CN
Inventors: 陈岑; 李冬冬
Original assignee: Guiyang Kenate Precision Machinery Co Ltd
Current assignee: Guiyang Kenate Precision Machinery Co Ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2020-01-07
Anticipated expiration: 2029-02-25

Abstract

The utility model provides a machining center is used for positioning fixture of eccentric shaft processing, this anchor clamps include first fixed axle, second fixed axle, step, fixed orifices, eccentric orfice, flap one, flap two. The whole clamp is of an integrated structure; the first fixed shaft is arranged at the left position of the whole clamp and fixed on a chuck of the machine tool. The second fixed shaft is positioned at the tail end of the first fixed shaft. The middle part of the step is in an opening shape. The fixing hole is arranged at the center of the second fixing shaft. The eccentric hole is arranged at the corresponding position of the right end part of the fixed hole. The utility model discloses machining center is used for the positioning fixture of eccentric shaft processing through using, sets up fixed orifices and eccentric orfice in the second fixed axle for machining center adds man-hour to the eccentric shaft, need not to look for once more and punches and carry out the clamping fixed, makes the clamping convenient more firm. After clamping is finished, machining can be finished simultaneously, and further, the stability of workpiece clamping is improved, and meanwhile machining efficiency is improved.

Description

Positioning fixture for eccentric shaft machining of machining center

Technical Field

The utility model relates to a numerical control machining center anchor clamps technical field, in particular to positioning fixture that machining center is used for eccentric shaft processing.

Background

In the machining production process, the clamp is often used for machining operation, sometimes materials needing to be machined are irregular, different clamps are needed to adapt to operation, especially for bar-type workpieces, due to the fact that the workpieces are irregular, clamping is inconvenient by the aid of the traditional clamp, and after machining time is long, the workpieces and the clamp are loosened, firmness is difficult to guarantee, and machining is inconvenient. Meanwhile, when the eccentric shaft is machined in the traditional mode, because the central point of the eccentric shaft is not located at one position, the machining position needs to be drilled and fixed respectively, when different positions are machined, clamping at different positions is needed, a large amount of working time needs to be consumed for clamping and fixing, meanwhile, the fixing is not firm, and the rejection rate of machined workpieces is high.

SUMMERY OF THE UTILITY MODEL

For solving the not enough among the prior art, the to-be-solved technical problem of the utility model is to provide a when adding man-hour to the eccentric shaft, reach fixed firm processing simultaneously, need not to punch once more and carry out the positioning fixture that fixed machining center is used for the eccentric shaft processing.

The scheme of the utility model is that:

a positioning clamp for machining an eccentric shaft in a machining center comprises a first fixing shaft, a second fixing shaft, a step, a fixing hole, an eccentric hole, a first protective wing and a second protective wing. The whole clamp is of an integrated structure; the first fixed shaft is arranged at the left position of the whole clamp and fixed on a chuck of the machine tool. The second fixed shaft is positioned at the tail end of the first fixed shaft, is connected with the first fixed shaft into a whole and is used for clamping a workpiece. The step is located the second fixed axle upper end, the step middle part be the opening form, the mounted position of being convenient for observe treating the machined part is fixed. The fixing hole is formed in the center of the second fixing shaft and used for installing and fixing the workpiece to be machined. The eccentric hole is arranged at the corresponding position of the right end part of the fixed hole, and forms a step hole shape with the fixed hole, and the function of the eccentric hole is the same as that of the fixed hole. The first protective wing is obliquely arranged at one side of the right end of the whole clamp and used for protecting and fixing the workpiece to be machined. The second wing is also positioned at the right end part of the whole clamp, is symmetrically arranged with the first wing and has the same function as the first wing.

Preferably, in order to make the fixing hole firmly fix the workpiece to be processed during use, the side surface of the second fixing shaft is further provided with a fixing nail, and the fixing nail is connected to the position of the fixing hole by the side surface of the second fixing shaft, so that the workpiece to be processed is further firmly fixed.

Preferably, the eccentricity formed between the fixing hole and the eccentric hole is 4.88 mm.

Preferably, the steps are in an L-shaped structure.

The utility model discloses machining center is used for the positioning fixture of eccentric shaft processing through using, sets up fixed orifices and eccentric orfice in the second fixed axle for machining center adds man-hour to the eccentric shaft, need not to look for once more and punches and carry out the clamping fixed, makes the clamping convenient more firm. After clamping is finished, machining can be finished simultaneously, and further, the stability of workpiece clamping is improved, and meanwhile machining efficiency is improved.

Drawings

FIG. 1: the front view of the positioning fixture used for eccentric shaft processing in the processing center of the utility model is shown;

FIG. 2: the left view of the positioning fixture used for eccentric shaft processing in the processing center of the utility model is shown;

FIG. 3: do the utility model discloses machining center is used for the sectional view of the positioning fixture of eccentric shaft processing.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 3, the positioning jig for eccentric shaft machining in the machining center comprises a first fixing shaft 1, a second fixing shaft 2, a step 3, a fixing hole 4, an eccentric hole 5, a first wing 6 and a second wing 7. The whole clamp is of an integrated structure; the first fixing shaft 1 is arranged at the left position of the whole clamp and fixed on a chuck of a machine tool. The second fixed shaft 2 is positioned at the tail end of the first fixed shaft 1, is connected with the first fixed shaft 1 into a whole and is used for clamping a workpiece. The step 3 is positioned at the upper end of the second fixed shaft 2, the middle part of the step 3 is in an opening shape, and the installation position for observing the workpiece to be machined is fixed. The fixing hole 4 is arranged at the center of the second fixing shaft 2 and used for installing and fixing a workpiece to be machined. The eccentric hole 5 is arranged at the corresponding position of the right end part of the fixed hole 4, forms a step 3 hole shape with the fixed hole 4, and has the same function as the fixed hole 4. The first protective wing 6 is obliquely arranged at one side of the right end of the whole clamp and used for protecting and fixing the workpiece to be machined. The second wing 7 is also positioned at the right end part of the whole clamp, is symmetrically arranged with the first wing 6 and has the same function as the first wing 6.

Preferably, in order to firmly fix the workpiece to be machined in the fixing hole 4 during use, a fixing nail is further arranged on the side surface of the second fixing shaft 2, and the fixing nail is connected to the position of the fixing hole 4 by the side surface of the second fixing shaft 2, so that the workpiece to be machined is further firmly fixed.

Preferably, the eccentricity formed between the fixing hole 4 and the eccentric hole 5 is 4.88 mm.

Preferably, the step 3 is in an L-shaped structure.

The utility model discloses machining center is used for the positioning fixture of eccentric shaft processing, when using: one end of a workpiece to be processed is fixed in a central fixing hole 4 of the second fixing shaft 2, and the other end of the workpiece to be processed is tightly pressed by a tip, at the moment, the position of an eccentric shaft of the workpiece to be processed can be located at the position of an eccentric hole 5, and the other end of the workpiece to be processed is tightly pressed by the tip to process the workpiece to be processed; when the workpiece to be machined in the fixing hole 4 needs to be further fastened, the fixing nail is arranged on the side surface of the second fixing shaft 2, and the using effect can be achieved.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a machining center is used for positioning fixture of eccentric shaft processing which characterized in that: the clamp comprises a first fixing shaft (1), a second fixing shaft (2), a step (3), a fixing hole (4), an eccentric hole (5), a first protection wing (6) and a second protection wing (7); the whole clamp is of an integrated structure; the first fixed shaft (1) is arranged at the left position of the whole clamp and fixed on a machine tool chuck; the second fixed shaft (2) is positioned at the tail end of the first fixed shaft (1), is connected with the first fixed shaft (1) into a whole and is used for clamping a workpiece; the step (3) is positioned at the upper end of the second fixed shaft (2), and the middle part of the step (3) is in an open shape, so that the installation position for observing a workpiece to be machined is fixed; the fixing hole (4) is arranged at the center of the second fixing shaft (2); the eccentric hole (5) is arranged at the corresponding position of the right end part of the fixed hole (4), forms a step (3) hole shape with the fixed hole (4), and has the same action as the fixed hole (4); the first protective wing (6) is obliquely arranged at one side of the right end part of the whole clamp; the second protective wing (7) is also positioned at the right end part of the whole clamp, is symmetrically arranged with the first protective wing (6) and has the same function as the first protective wing (6).

2. The positioning jig of the machining center for eccentric shaft machining according to claim 1, characterized in that: the side surface of the second fixed shaft (2) is also provided with a fixed nail, and the fixed nail is connected to the position of the fixed hole (4) through the side surface of the second fixed shaft (2) so as to further firmly fix the workpiece to be machined.

3. The positioning jig of a machining center for eccentric shaft machining according to claim 1 or 2, characterized in that: the eccentricity formed between the fixing hole (4) and the eccentric hole (5) is 4.88 mm.

4. The positioning jig of the machining center for eccentric shaft machining according to claim 1, characterized in that: the steps (3) are in an L-shaped structure.