CN223699550U

CN223699550U - A gear-shaping tooling fixture

Info

Publication number: CN223699550U
Application number: CN202423304621.7U
Authority: CN
Inventors: 占培庆; 彭员军; 赵越超
Original assignee: Jmcg Concord Transmission Technic Co ltd
Current assignee: Jmcg Concord Transmission Technic Co ltd
Priority date: 2024-12-31
Filing date: 2024-12-31
Publication date: 2025-12-23
Anticipated expiration: 2034-12-31

Abstract

This utility model discloses a gear-shaping fixture, including a base, a connecting plate, a positioning seat, a pressure plate, and fastening screws. The positioning seat is used to position the lower outer diameter of the workpiece. The positioning seat is used to position the lower outer diameter of the workpiece body, and the upper gear-shaping part of the workpiece is higher than the fixture. Tightening the fastening screws on the side of the pressure plate clamps the workpiece. The positioning seat and the pressure plate are produced by cutting from the same part. The gear-shaping fixture provided in this application solves the clamping problem of gear-shaping for workpieces with this structure, and there is no interference between the gear-shaping cutter and the fixture. This fixture has high positioning accuracy and can eliminate positioning gaps; it is convenient to clamp and does not require recalibration after clamping; the gear-shaping fixture has a simple structure, is easy to implement, and is inexpensive.

Description

Gear shaping frock clamp

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a gear shaping fixture.

Background

In the field of machining, a solid stepped shaft workpiece is a common transmission part and is structurally characterized in that teeth are arranged at the upper end, the diameter of the outer circle of the lower end is larger than that of the upper end, and a stepped structure is formed. However, in actual machining processes, such workpieces face a number of technical challenges. For example, due to the compact structure, adjacent shoulders are too close to the tooth processing section, and the hobbing process can be used for hobbing the shoulders, so that the hobbing method cannot be applied.

In order to solve the above-described problems, an attempt has been made to perform gear shaping using a conventional platen clamping manner. However, in practice, the clamping position of the pressure plate is difficult to select. Due to the specificity of the workpiece structure, the clamping position is selected not only by considering the stability of the workpiece, but also by avoiding interference between the gear shaper cutter and the tool fixture. In addition, clamping processing using a three-jaw chuck has been attempted. However, the clamping process is particularly troublesome when processing such workpieces. Each part needs to be accurately clamped and calibrated to ensure machining precision and stability. This not only greatly reduces production efficiency, but also increases labor costs and operational difficulties.

Disclosure of utility model

The utility model mainly solves the technical problem of providing the gear shaping fixture with simple structure, the workpiece clamping mode is simple, the gear shaping cutter and the fixture are not interfered, and the workpiece clamping process is not required to be corrected, so that the efficiency is high.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The gear shaping fixture comprises a base, a connecting disc, a positioning seat, a pressing plate and a fastening screw, wherein the positioning seat is used for positioning the outer circle of the lower end of a workpiece;

The lower part of the base is used for being connected with a workbench of the gear shaping machine, the upper part of the base is provided with a connecting disc, a locating seat is arranged on the connecting disc, a workpiece is placed in the locating seat, the shaft end of the workpiece is attached to the connecting disc to limit, and a pressing plate is fixedly connected to the locating seat through a fastening screw so as to clamp the workpiece.

In some embodiments, the positioning seat is used for positioning the excircle of the lower end of the workpiece main body, the gear shaping part of the upper end of the workpiece is higher than the fixture, and the fastening screw on the side surface of the pressing plate is screwed to clamp the workpiece. The tool clamp solves the problem of gear shaping and clamping of workpieces with the structure, and the gear shaping cutter and the gear shaping tool clamp are free from interference.

In some embodiments, the positioning seat and the pressure plate are produced by cutting after the same part is machined. The fixture has the advantages of simple structure, simple processing technology and high positioning precision.

In some embodiments, the pressing plate clamps the workpiece, and the workpiece is fixed by a fastening screw for fastening the side surface of the pressing plate, so that the positioning gap is eliminated, and the clamping is convenient.

In some embodiments, the positioning seat leaves a chip fluid outflow hole.

Compared with the prior art, the embodiment of the application has the beneficial effects that:

The gear shaping fixture provided by the embodiment of the application solves the clamping problem of workpiece gear shaping of the structure, and the gear shaping cutter and the fixture are not interfered. The gear shaping fixture has the advantages of high positioning accuracy, capability of eliminating positioning gaps, convenience in clamping, no need of recalibration after clamping, simple structure, easiness in implementation and low manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is a C-C cross-sectional view of fig. 1.

FIG. 3 is a schematic view of a positioning seat and a platen according to an embodiment of the present utility model.

Fig. 4 shows a cross-sectional view of C-C of fig. 3.

Fig. 5 shows a schematic structural view of the positioning seat.

Fig. 6 shows a schematic structural view of the platen.

Reference numerals illustrate:

1. The cutting tool comprises a base, a connecting disc, a positioning seat, a pressing plate, a fastening screw, a workpiece, a cutting fluid outflow hole and a cutting fluid outflow hole.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 and 2, an embodiment of the application provides a gear shaping fixture, which comprises a base 1, a connecting disc 2, a positioning seat 3, a pressing plate 4 and a fastening screw 5.

The lower part of the base 1 is connected with a workbench of a gear shaping machine, the upper part of the base is provided with a connecting disc 2, and the connecting disc 2 is provided with a positioning seat 3. And placing a workpiece 6 (namely a solid stepped shaft workpiece) into the positioning seat 3, and attaching and limiting the shaft end of the workpiece 6 and the connecting disc 2. The pressing plate 4 is installed, and the fastening screw 5 is tightened to clamp the workpiece 6 so as to eliminate the positioning gap. The gear shaping part at the upper end of the workpiece 6 is higher than the fixture, and the gear shaping cutter and the fixture are not in interference risk.

Referring to fig. 3 to 6, the positioning seat 3 and the pressing plate 4 are formed by cutting the same part after machining. The parts are integrally processed first by adopting an inner hole grinding process. For example, the tolerance bandwidth of the inner hole is 0.021 and the roundness is 0.015. After the part processing is completed, the part is cut into a positioning seat 3 and a pressing plate 4. The positioning seat 3 and the pressing plate 4 are high in positioning precision, and the workpiece 6 does not need to be calibrated after being clamped. As an example, the positioning seat 3 is provided with a chip liquid outflow hole 7.

Without being limited thereto, any changes or substitutions that are not contemplated by the inventors are intended to be included within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. The gear shaping fixture is characterized by comprising a base (1), a connecting disc (2), a positioning seat (3), a pressing plate (4) and a fastening screw (5), wherein the positioning seat (3) is used for positioning the outer circle of the lower end of a workpiece (6);

The lower part of the base (1) is used for being connected with a gear shaping machine workbench, the upper part of the base is provided with a connecting disc (2), a locating seat (3) is arranged on the connecting disc (2), a workpiece (6) is placed in the locating seat (3), the shaft end of the workpiece (6) is attached to the connecting disc (2) to limit, and a pressing plate (4) is fixedly connected to the locating seat (3) through a fastening screw (5) so as to clamp the workpiece (6).

2. The gear shaping frock clamp according to claim 1, characterized in that the positioning seat (3) is used for positioning the excircle of the lower end of the main body of the workpiece (6), the gear shaping part of the upper end of the workpiece (6) is higher than the frock clamp, and the fastening screw (5) on the side surface of the pressing plate (4) is screwed down to clamp the workpiece (6).

3. Gear shaping tool clamp according to claim 2, characterized in that the positioning seat (3) and the pressing plate (4) are produced by cutting after machining of the same part.

4. A gear shaping frock clamp according to claim 3, characterized in that the clamp plate (4) clamps the workpiece (6), is fixed by tightening the fastening screw (5) on the side of the clamp plate (4), eliminates the positioning gap, and is convenient for clamping.

5. Gear shaping tool clamp according to claim 1, characterized in that the positioning seat (3) leaves a chip fluid outflow hole (7).