Workpiece clamping device of spinning machine

Abstract

The utility model discloses a workpiece clamping device of a spinning machine, which comprises a lathe bed, a processing engine base and an auxiliary engine base, and the processing engine base and the auxiliary engine base are respectively arranged at two ends of the lathe bed. The machining machine base is provided with a main shaft connector for installation of a machined part, the auxiliary machine base is slidably connected with an extension rod, the end of the extension rod is fixedly connected with a bearing, the extension rod is provided with a sleeve, and the bearing is installed in the sleeve and connected with the sleeve so as to assist the sleeve to rotate smoothly through the bearing. The extension rod moves relative to the auxiliary machine base so as to drive the sleeve to abut against the main shaft connector, and a machined part of the main shaft connector is clamped. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

Description

[Technical Field]

[0001] This utility model mainly relates to a workpiece clamping device for a spinning machine. [Background Technology]

[0002] When forming metal parts such as metal lamp cups using existing spinning machines, the metal parts are usually fixed on the rotating end first, and then a mold joint corresponding to the shape of the lamp cup is pushed to fit against the metal parts. The mold rotates synchronously with the rotating end, so the smoothness of the mold joint is very important. In view of this, we propose a clamping technology structure. [Utility Model Content]

[0003] To solve at least one of the above problems, this utility model proposes a new structural solution. The workpiece clamping device of this spinning machine adopts the following technical solution:

[0004] A workpiece clamping device for a spinning machine includes a bed, a machining base, and an auxiliary base, with the machining base and the auxiliary base respectively located at both ends of the bed;

[0005] The machining base is equipped with a spindle joint for mounting the workpiece. An extension rod is slidably connected to the auxiliary base. A bearing is fixed to the end of the extension rod. A sleeve is fitted on the extension rod. The bearing is installed inside the sleeve and connected to the sleeve so that the sleeve can rotate smoothly through the bearing. The extension rod moves relative to the auxiliary base so that the sleeve abuts against the spindle joint and clamps the workpiece of the spindle joint.

[0006] Preferably, the spindle joint and the sleeve are located on the same axis.

[0007] Preferably, the end dimension of the extension rod is narrowed to form an access end, and a bearing is installed at the access end.

[0008] Preferably, the top of the machining base is provided with a slide rail, which extends out of the machining base and horizontally toward the spindle joint, and the slide rail is connected to a cover.

[0009] Preferably, the auxiliary machine base has a through hole, and the extension rod is assembled in the through hole; the auxiliary machine base has a cylinder, and the cylinder is connected to the extension rod to push the extension rod to move towards the processing machine base.

[0010] The beneficial effects of this utility model compared with the prior art are:

[0011] In this structure, the workpiece is assembled onto the spindle joint, while a cylinder pushes an extension rod to move, causing a sleeve to clamp the workpiece onto the spindle joint. The sleeve is connected to the extension rod via a bearing and can rotate freely on the extension rod. Therefore, the sleeve can rotate in conjunction with the spindle joint, and the engagement between the spindle joint and the sleeve creates a clamping state for the workpiece, facilitating subsequent cutting. It boasts advantages such as simple structure, compact fit, and reasonable design; therefore, it is a product with superior technical and economic performance. [Attached Image Description]

[0012] Figure 1 A schematic diagram of the workpiece clamping device of the spinning machine in a preferred embodiment of this utility model;

[0013] Figure 2 This is an exploded view of the workpiece clamping device of the spinning machine in the preferred embodiment of this utility model.

Detailed Implementation Methods

[0014] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] The preferred embodiment provided by this utility model is as follows: Figure 1 and Figure 2 As shown, a workpiece clamping device for a spinning machine includes a bed 1, a machining base 2, and an auxiliary base 3, with the machining base 2 and the auxiliary base 3 respectively located at both ends of the bed 1;

[0018] The machining base 2 is provided with a spindle connector 21 for mounting the workpiece. The spindle connector 21 is connected to a motor to drive the spindle connector 21 to rotate. An extension rod 31 is slidably connected to the auxiliary base 3. A bearing 32 is fixedly connected to the end of the extension rod 31. The inner ring of the bearing 32 is interference-fitted to the end of the extension rod 31. The extension rod 31 is equipped with a sleeve 33. The extension rod 31 extends into the sleeve 33 so that the bearing 32 is installed in the sleeve 33 and connected to the sleeve 33. The outer ring of the bearing 32 is interference-fitted with the sleeve 33 so that the bearing 32 is fixed to the sleeve 33, so that the sleeve 33 can rotate smoothly through the bearing 32. The extension rod 31 moves relative to the auxiliary base 3 to drive the sleeve 33 to abut against the spindle connector 21, clamping the workpiece of the spindle connector 21.

[0019] The spindle connector 21 and the sleeve 33 are located on the same axis to ensure that the spindle connector 21 and the sleeve 33 rotate concentrically. The end dimension of the extension rod 31 is narrowed to form an access end 34, and the bearing 32 is installed on the access end 34; the diameter of the access end 34 is smaller than the diameter of the extension rod 31, and the number of bearings 32 installed can be one or more, and the outer diameter of the sleeve 33 is the same as the diameter of the extension rod 31.

[0020] The top of the machining base 2 is provided with a slide rail 21. The slide rail 21 extends out of the machining base 2 and horizontally towards the spindle joint 21. The slide rail 21 is connected to a cover 22. The cover 22 is connected to the slide rail 21 through a slide block. The cover 22 moves along the slide rail 21 to adjust its position on the slide rail 21 so that the cover 22 can block the debris flying out of the workpiece during machining.

[0021] The auxiliary machine base 3 is provided with a through hole 34, and the extension rod 31 is assembled in the through hole 34; the auxiliary machine base 3 is provided with a cylinder 35, which is connected to the extension rod 31 to push the extension rod 31 to move towards the processing machine base 2.

[0022] A spinning machine utilizes a symmetrical rotational forming process. A sheet metal or hollow blank is fixed to the mandrel of the spinning machine and rotated at high speed. Then, a spinning wheel or pressing rod presses down on the surface of the blank. Under the combined action of spinning force and pressure, the stress point of the metal sheet changes from a point to a line and then to a surface. Local plastic deformation gradually expands to the entire blank, causing it to fit tightly against the mold to achieve the desired shape. This process is suitable for processing symmetrical objects and can achieve variations such as deep drawing, flanging, necking, bulging, and curling through different spinning methods. During processing, the workpiece is assembled onto the spindle joint 21. Simultaneously, a cylinder pushes the extension rod to move, causing the sleeve 33 to press the workpiece against the spindle joint 21. The sleeve 33 is connected to the extension rod via a bearing 32 and can rotate freely relative to the extension rod 31. Therefore, the sleeve 33 can rotate in conjunction with the spindle joint 21, and the interaction between the spindle joint 21 and the sleeve 33 creates a clamping state for the workpiece, facilitating subsequent cutting processing.

[0023] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A workpiece clamping device for a spinning machine, characterized by: It includes a bed, a processing seat and an auxiliary seat, the processing seat and the auxiliary seat are respectively arranged at two ends of the bed; The processing seat is provided with a spindle joint for mounting a workpiece, the auxiliary seat is slidably connected with an extension rod, an end of the extension rod is fixedly connected with a bearing, the extension rod is assembled with a sleeve, the bearing is installed in the sleeve and connected with the sleeve to assist the sleeve to smoothly rotate through the bearing; the extension rod moves relative to the auxiliary seat to drive the sleeve to abut against the spindle joint to clamp the workpiece of the spindle joint.

2. A workpiece clamping device for a spinning machine according to claim 1, wherein: The spindle joint and the sleeve are located on the same axial line.

3. A workpiece holding device for a spinning machine according to claim 1, wherein: An end of the extension rod is narrowed in size to form an access end, and the bearing is installed in the access end.

4. A workpiece holding device for a spinning machine according to claim 1, wherein: The top of the processing seat is provided with a slide rail, the slide rail extends out of the processing seat and horizontally extends towards the spindle joint, and the slide rail is connected with a cover.

5. A workpiece holding device for a spinning machine according to claim 1, wherein: The auxiliary seat is provided with a through hole, and the extension rod is assembled in the through hole; the auxiliary seat is provided with a gas cylinder, and the gas cylinder is connected with the extension rod to drive the extension rod to move towards the processing seat.

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