CN218927059U

CN218927059U - Milling fixture for disc part machining

Info

Publication number: CN218927059U
Application number: CN202223301724.9U
Authority: CN
Inventors: 李金钊; 段中洲; 魏松坡; 廉继西; 孙俊霞; 李胜争; 孙宝发; 孙夏辉; 石颖明; 陈腾飞; 叶培娟; 赵淑君
Original assignee: Henan Pingyuan Optical & Electronic Co ltd
Current assignee: Henan Pingyuan Optical & Electronic Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-28
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to a milling fixture for machining disc parts, belongs to the technical field of machining, and solves the problems of inconvenient installation and positioning and low efficiency in the prior art of disc part milling. The utility model comprises the following steps: the fixture comprises a fixture body, a screw rod, a mandrel, a spring and a compression nut; the clamp body is fixedly arranged on the machine tool; a mandrel positioning hole is formed in the center of the clamp body; the screw rod is fixedly arranged in a mandrel positioning hole of the clamp body; the outside of the screw rod is sleeved with a mounting mandrel and a spring, and the mandrel is slidably mounted in the mandrel positioning hole; the spring is arranged between the mandrel and the clamp body; the part of the mandrel protruding out of the mandrel positioning hole is sleeved with an installation workpiece; the compression nut is connected with the screw rod through threads, and the workpiece can be fixed on the clamp body in a compression mode through the compression nut. The utility model improves the processing positioning precision and the processing efficiency of the disc structural parts.

Description

Milling fixture for disc part machining

Technical Field

The utility model relates to the technical field of machining, in particular to a milling fixture for machining disc parts.

Background

The disc structural member is used for transmission of the whole machine mechanism of the product, the precision requirement is high, holes with different specifications on a single part are more, and the consistency of the machining sizes of the parts influences the whole machine assembly adjustment degree and performance indexes of the product.

When the appearance of a part is milled and each hole is drilled by a single machine, the positioning and clamping of the part are usually carried out by adopting a mode of aligning the center of an outer circle and compacting the end face of the part, the part clamping and the disassembling are time-consuming and labor-consuming, the machine tool can not carry out continuous production, and the utilization efficiency of the machine tool is low.

When a single machine is used for processing parts, alignment and clamping of workpiece parts are needed to be performed manually, clamping positioning errors exist, and the size consistency of the parts cannot be ensured; when the single machine is used for processing the parts, the flexible processing manufacturing degree of the equipment is low, the processing efficiency of the parts is low, and the processing progress of the parts is influenced.

Accordingly, it is desirable to provide a clamp for quickly positioning and securing disc-type parts during milling operations.

Disclosure of Invention

In view of the above analysis, the utility model aims to provide a milling fixture for processing disc parts, which is used for solving the problems of inaccurate positioning and low processing efficiency of the existing milling machine during processing disc parts.

The aim of the utility model is mainly realized by the following technical scheme:

a milling fixture for disc-type part machining, comprising: the fixture comprises a fixture body, a screw rod, a mandrel, a spring and a compression nut;

the clamp body is fixedly arranged on the machine tool; a mandrel positioning hole is formed in the center of the clamp body;

the screw rod is fixedly arranged in a mandrel positioning hole of the clamp body;

the outside of the screw rod is sleeved with a mounting mandrel and a spring, and the mandrel is slidably mounted in the mandrel positioning hole; the spring is arranged between the mandrel and the clamp body;

the part of the mandrel protruding out of the mandrel positioning hole is sleeved with an installation workpiece; the compression nut is connected with the screw rod through threads, and the workpiece can be fixed on the clamp body in a compression mode through the compression nut.

Further, the dabber is ladder cylinder structure, includes: a sliding part and a positioning part.

Further, the sliding portion is slidably mounted in the spindle positioning hole.

Further, the positioning part is arranged above the sliding part, and the workpiece is sleeved and installed on the positioning part and used for positioning the workpiece.

Further, the diameter of the positioning portion is the same as the diameter of the inner hole of the workpiece.

Further, the length of the positioning part is greater than or equal to the length of the inner hole of the workpiece.

Further, the diameter of the positioning portion is smaller than the diameter of the sliding portion.

Further, when the spring is in a natural state, the sliding part protrudes out of the upper port of the mandrel positioning hole.

Further, the lower end face of the compression nut is simultaneously contacted with the upper end face of the mandrel and the upper end face of the workpiece.

Further, the device also comprises a fastening bolt; the clamp body is fixedly connected with the machine tool through a fastening bolt.

In particular, the clamp body is mounted on a zero point positioning system of a flexible manufacturing unit pallet of a machine tool.

The technical scheme of the utility model can at least realize one of the following effects:

1. according to the milling fixture for disc part machining, the workpiece is positioned through the mandrel, the end face of the gold pressing nut is pressed to fix the workpiece on the fixture body in a pressing mode, the workpiece is positioned and clamped, the fixture body is connected with the machine tool, the workpiece is reliably fixed, and the workpiece repeated positioning accuracy is high.

2. According to the milling fixture for disc part machining, when the workpiece is disassembled, the compression nut spring is disassembled to automatically spring up the mandrel and the workpiece, so that the rapid disassembly of the part is facilitated.

3. According to the milling fixture for processing the disc parts, disclosed by the utility model, the manipulator is controlled by the software control system of the flexible manufacturing unit to perform operation, automatic processing, cleaning and detection on the workpiece in the processing process, and the processing efficiency and the size consistency of the parts are obviously improved by the clamping mode.

4. The milling fixture for processing the disc parts can be suitable for milling the shapes of the disc parts with different specifications and sizes by replacing the mandrel. The machining quality of the parts can be guaranteed, the clamping and the disassembly can be quickly aligned, the production efficiency is improved, the stability of the machining process is good, and the machining method can be widely popularized and applied in the contour milling of the disc parts of photoelectric products.

In the utility model, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.

FIG. 1 is a schematic view of a milling fixture for machining disc-type parts according to the present utility model;

fig. 2 is a schematic view showing a state of a milling fixture for machining disc parts according to the present utility model.

Reference numerals:

1-a clamp body; 2-a screw rod; 3-a mandrel; 4-a spring; 5-compressing the nut; 6-a workpiece; 7-fastening bolts.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

Example 1

In one embodiment of the present utility model, a milling fixture for machining disc parts is disclosed, as shown in fig. 1, comprising: the fixture comprises a fixture body 1, a screw rod 2, a mandrel 3, a spring 4 and a compression nut 5;

the clamp body 1 is fixedly arranged on a machine tool; a mandrel positioning hole is formed in the center of the clamp body 1;

the screw rod 2 is fixedly arranged in a mandrel positioning hole of the clamp body 1;

the outside of the screw rod 2 is sleeved with a mounting mandrel 3 and a spring 4, and the mandrel 3 is slidably mounted in a mandrel positioning hole; the spring 4 is arranged between the mandrel 3 and the clamp body 1;

the part of the mandrel 3 protruding out of the mandrel positioning hole is sleeved with an installation workpiece 6; the compression nut 5 is in threaded connection with the screw rod 2, and the compression nut 5 can compress and fix the workpiece 6 on the clamp body 1.

As shown in fig. 1, the mandrel 3 is installed in the mandrel positioning hole, the spring 4 is arranged below the mandrel 3, the compression nut 5 rotates on the screw rod 2 to move downwards so as to press the workpiece 6 and the mandrel 3, finally, the workpiece 6 is pressed and fixed on the fixture body 1, and meanwhile, the mandrel 3 and the workpiece 6 synchronously move downwards and compress the spring 4, so that clamping and fixing of the workpiece 6 are completed.

As shown in fig. 2, when the work 6 needs to be removed after the completion of the processing: the compression nut 5 is unscrewed upwards, the mandrel 3 slides upwards in the mandrel positioning hole under the action of the elasticity of the spring 4, the workpiece 6 is pushed to move upwards to eject the workpiece 6, a gap is reserved between the workpiece 6 and the clamp body 1, and the workpiece 6 can be detached from the clamp by pulling the workpiece 6 upwards.

As shown in fig. 1, the clamp body 1 is fixedly installed on a zero point positioning system of a flexible manufacturing unit tray on a machine tool through a fastening bolt 7, and a software control system of the flexible manufacturing unit is used for controlling a manipulator to operate, automatically process, clean and detect a workpiece in the machining process.

Further, the mandrel 3 has a stepped cylindrical structure, and includes: a sliding part and a positioning part.

Further, the sliding portion is slidably mounted in the spindle positioning hole. As shown in fig. 1 and 2, when the workpiece 6 is clamped or removed by the milling jig of the present utility model, the sliding portion of the spindle 3 can slide up and down in the spindle positioning hole.

Further, the positioning portion is disposed above the sliding portion, and the workpiece 6 is sleeved on the positioning portion, so as to position the workpiece 6.

Further, the diameter of the positioning portion is the same as the diameter of the inner hole of the work piece 6.

Because dabber 3 installs in the dabber locating hole of anchor clamps body 1, and work piece 6 cover is established in the locating part of dabber 3, and work piece 6 passes through the locating part cooperation of centre bore and dabber 3, and dabber locating hole and dabber 3 are as location structure simultaneously, can fix a position work piece 6. The axis of the workpiece 6 is consistent with the axis of the mandrel 3, the workpiece 6 is positioned in the horizontal direction through the mandrel 3, and the positions of the workpiece 6 have good uniformity in the repeated installation, processing and disassembly processes of the workpieces 6 in batches of the same model.

Further, the length of the positioning portion is equal to or greater than the length of the inner hole of the workpiece 6. Preferably, in order to facilitate the synchronous pressing down of the spindle 3 and the workpiece 6 by the compression nut 5, the length of the positioning portion is set to be the same as the length of the inner hole of the workpiece 6. For workpieces 6 of different model sizes, mandrels 3 of different model sizes are selected.

Further, when the spring 4 is in a natural state, the sliding part protrudes out of the upper port of the mandrel positioning hole.

Further, the lower end face of the compression nut 5 is simultaneously in contact with the upper end face of the mandrel 3 and the upper end face of the workpiece 6.

Further, the clamp body 1 is fixedly connected with the machine tool through a fastening bolt 7.

Specifically, as shown in fig. 1, the design size of the jig body 1 is larger than the positioning face size of the work, and the size of the jig body 1 and the position of the screw hole for mounting the fastening bolt 7 are designed according to the structure and size of the part in combination with the screw hole on the flexible manufacturing unit tray.

Specifically, the fixture body 1 is connected with the part positioning system of the flexible manufacturing unit tray, so that the zero point of the workpiece 6 is rapidly and repeatedly positioned, the repeated positioning accuracy is within 0.005mm, the clamping and aligning preparation time is greatly shortened, the labor intensity is greatly reduced, and the consistency of the machining dimension of the parts is improved.

Specifically, a mandrel positioning hole is designed on the clamp body 1, and the gap between the mandrel positioning hole and the mandrel 3 is within 0.01 mm.

Compared with the prior art, the technical scheme provided by the embodiment has at least one of the following beneficial effects:

1. the milling fixture for machining disc parts is designed, so that the machining quality and the machining efficiency of the parts are greatly improved, and the assembly and adjustment progress and performance index requirements of the whole machine of the product are ensured.

2. The milling fixture for processing the disc parts can be applied to milling processing of the disc parts with different types by replacing the mandrel 3, can realize flexible processing and manufacturing of the disc parts in a flexible manufacturing unit, improves the processing efficiency and the processing quality of the parts, and has good economical efficiency and popularization value.

3. According to the milling clamp for processing disc parts, the central position of a workpiece 6 is positioned through the mandrel 3, the workpiece 6 is clamped and fixed through the compression nut 5 and the clamp body 1, after processing is finished, the compression nut 5 is unscrewed, and the mandrel 3 and the workpiece 6 can be ejected upwards through the spring 4; the quick disassembly of the parts is convenient.

The production practice proves that the milling fixture can ensure the processing quality of the parts, can rapidly align, clamp and disassemble the parts, improves the production efficiency of the parts, has good stability in the processing process, and can be widely applied to the processing of milling the shapes of disc parts.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. A milling fixture for disc-like part machining, comprising: the fixture comprises a fixture body (1), a screw rod (2), a mandrel (3), a spring (4) and a compression nut (5);

the clamp body (1) is fixedly arranged on the machine tool; a mandrel positioning hole is formed in the center of the clamp body (1);

the screw rod (2) is fixedly arranged in a mandrel positioning hole of the clamp body (1);

the outside of the screw rod (2) is sleeved with a mounting mandrel (3) and a spring (4), and the mandrel (3) is slidably mounted in a mandrel positioning hole; the spring (4) is arranged between the mandrel (3) and the clamp body (1);

a part of the mandrel (3) protruding out of the mandrel positioning hole is sleeved with an installation workpiece (6); the compression nut (5) is connected with the screw rod (2) through threads, and the compression nut (5) can compress and fix the workpiece (6) on the clamp body (1).

2. Milling fixture for disc-like part machining according to claim 1, characterized in that the spindle (3) is of stepped cylindrical structure comprising: a sliding part and a positioning part.

3. The milling fixture for disc-type part machining according to claim 2, wherein the sliding portion is slidably mounted in the spindle positioning hole.

4. A milling fixture for machining disc parts according to claim 3, wherein the positioning part is arranged above the sliding part, and the workpiece (6) is sleeved and mounted on the positioning part for positioning the workpiece (6).

5. Milling fixture for disc-like parts machining according to claim 4, characterized in that the diameter of the positioning part is the same as the diameter of the inner hole of the work piece (6).

6. Milling fixture for disc-like part machining according to claim 5, characterized in that the length of the positioning part is equal to or greater than the length of the inner hole of the work piece (6).

7. The milling fixture for machining of disc-like parts according to claim 6, wherein the diameter of the positioning portion is smaller than the diameter of the sliding portion.

8. Milling fixture for disc parts machining according to claim 7, characterized in that the sliding part protrudes out of the upper port of the spindle locating hole when the spring (4) is in natural state.

9. Milling fixture for disc-like part machining according to claim 8, characterized in that the lower end face of the compression nut (5) is in contact with both the upper end face of the spindle (3) and the upper end face of the workpiece (6).

10. Milling fixture for disc parts machining according to claim 9, further comprising fastening bolts (7), wherein the fixture body (1) is fixedly connected with the machine tool by means of fastening bolts (7).