Milling machine workpiece clamping tool

Abstract

A milling machine workpiece clamping tool relates to the technical field of clamping devices and comprises a base, L-shaped supporting plates are arranged on the left side of a rotating seat in a front-back contrast mode, a triangular swing block is rotationally installed between the two L-shaped supporting plates, and three end points of the triangular swing block are rotationally connected with a first control plate, a second control plate and an output shaft of an air cylinder respectively. A top plate is fixedly installed on the tops of the two L-shaped supporting plates, a first fixing plate and a second fixing plate are installed on the left side and the right side of the top plate respectively, connecting bases are installed on the two sides of the first fixing plate and the two sides of the second fixing plate, one end of a first pressing block is connected with one end of a first control plate, and one end of a second pressing block is connected with one end of a second control plate. The triangular swing block is driven by the air cylinder to rotate, so that the first control plate and the second control plate are controlled to drive the first pressing block and the second pressing block to press and clamp a workpiece, the problem that manual adjustment is tedious is solved, working efficiency is improved, and labor intensity is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a clamping fixture for a milling machine workpiece. Background Art

[0002] A milling machine is a widely used machine tool. It can process planes (horizontal and vertical surfaces), grooves (keyways, T-slots, dovetail grooves, etc.), toothed parts (gears, spline shafts, sprockets), spiral surfaces (threads, spiral grooves) and various curved surfaces. In addition, it can also be used for processing the surface of a rotating body, inner holes and cutting. When the milling machine is working, the workpiece is mounted on a workbench or an accessory such as a dividing head. The rotation of the milling cutter is the main motion, supplemented by the feed motion of the workbench or milling head, so that the workpiece can obtain the required processing surface. Due to the multi-blade intermittent cutting, the productivity of the milling machine is relatively high. Simply put, a milling machine is a machine tool that can perform milling, drilling and boring on a workpiece.

[0003] The clamping fixtures currently used in milling machines are suitable for flat workpieces (such as Figure 2 Most of the clamping requires manual control, which is cumbersome to adjust and inconvenient to use. Utility Model Content

[0004] The utility model provides a clamping fixture for a workpiece of a milling machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A workpiece clamping fixture for a milling machine comprises a base, a rotating base is installed on the base, the rotating base is rotatably installed with one end of a cylinder, an L-shaped support plate is arranged on the left side of the rotating base, a triangular pendulum block is rotatably installed between the two L-shaped support plates, and the three end points of the triangular pendulum block are rotatably connected with a first control plate, a second control plate and an output shaft of the cylinder respectively, a top plate is fixedly installed on the top of the two L-shaped support plates, a first fixed plate and a second fixed plate are installed on the left and right sides of the top plate respectively, connecting seats are installed on both sides of the first fixed plate and the second fixed plate, a first pressure block and a second pressure block are rotatably installed on the rotating base, one end of the first pressure block is connected to one end of the first control plate, and one end of the second pressure block is connected to one end of the second control plate.

[0007] A further preferred solution of the utility model is as follows: both the first fixing plate and the second fixing plate are provided with mounting grooves, and one side of the mounting groove on the second fixing plate is provided with an inclined surface.

[0008] A further preferred solution of the present invention is that the length of the first control plate is greater than the length of the second control plate.

[0009] A further preferred solution of the utility model is that threaded holes are arranged on the four corners of the base, and a fixing bolt is screwed into each threaded hole.

[0010] A further preferred solution of the utility model is that the rotation connection between the triangular swing block and the L-shaped support plate is located on one side of the center.

[0011] The utility model has the following benefits:

[0012] The utility model drives the triangular pendulum block to rotate by the cylinder, thereby controlling the first control plate and the second control plate to drive the first pressure block and the second pressure block to clamp the workpiece, solving the problem of cumbersome manual adjustment, improving work efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of a flat plate workpiece of the utility model;

[0015] Figure 3 It is a rear cross-sectional structural schematic diagram of the utility model;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the L-shaped support plate of the utility model;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the first fixing plate of the utility model;

[0018] Figure 6 It is a schematic diagram of the three-dimensional structure of the second fixing plate of the utility model;

[0019] In the figure: 1-base, 2-rotating seat, 3-cylinder, 4-L-shaped support plate, 5-first fixed plate, 6-second fixed plate, 7-connecting seat, 8-first pressing block, 9-second pressing block, 10-first control plate, 11-second control plate, 12-fixing bolt, 13-triangular pendulum block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] according to Figure 1-6As shown, a workpiece clamping fixture for a milling machine comprises a base 1, on which a rotating base 2 is installed, the rotating base 2 is rotatably installed with one end of a cylinder 3, an L-shaped support plate 4 is arranged on the left side of the rotating base 2, a triangular pendulum block 13 is rotatably installed between the two L-shaped support plates 4, and the three end points of the triangular pendulum block 13 are rotatably connected with a first control board 10, a second control board 11 and an output shaft of the cylinder 3 respectively, a top plate is fixedly installed on the top of the two L-shaped support plates 4, a first fixed plate 5 and a second fixed plate 6 are installed on the left and right sides of the top plate respectively, a connecting base 7 is installed on both sides of the first fixed plate 5 and the second fixed plate 6, a first pressure block 8 and a second pressure block 9 are rotatably installed on the rotating base 2, one end of the first pressure block 8 is connected to one end of the first control board 10, and one end of the second pressure block 9 is connected to one end of the second control board 11.

[0022] The first fixing plate 5 and the second fixing plate 6 are both provided with mounting grooves, and a slope is provided on one side of the mounting groove of the second fixing plate 6, so that workpieces can be better mounted and taken out.

[0023] The length of the first control board 10 is greater than the length of the second control board 11 .

[0024] Threaded holes are provided on the four corners of the base 1 , and a fixing bolt 12 is screwed into each threaded hole.

[0025] The rotation connection between the triangular swing block 13 and the L-shaped support plate 4 is located on one side of the center.

[0026] Working principle: Place the workpiece for processing on the first fixed plate 5 and the second fixed plate 6, start the cylinder 3, and the output shaft of the cylinder 3 drives the triangular pendulum block 13 to rotate, thereby controlling the first control plate 10 and the second control plate 11 to drive the first pressure block 8 and the second pressure block 9 to clamp the workpiece, and then the workpiece can be processed.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A workpiece clamping fixture for a milling machine, characterized in that: The invention comprises a base (1), a rotating base (2) is mounted on the base (1), the rotating base (2) and one end of the cylinder (3) are rotatably mounted together, an L-shaped support plate (4) is arranged on the left side of the rotating base (2) in front and back comparison, a triangular swing block (13) is rotatably mounted between the two L-shaped support plates (4), three end points of the triangular swing block (13) are respectively rotatably connected to a first control plate (10), a second control plate (11) and an output shaft of the cylinder (3), a top plate is fixedly mounted on the top of the two L-shaped support plates (4), a first fixed plate (5) and a second fixed plate (6) are respectively mounted on the left and right sides of the top plate, a connecting seat (7) is mounted on both sides of the first fixed plate (5) and the second fixed plate (6), a first pressing block (8) and a second pressing block (9) are rotatably mounted on the rotating base (2), one end of the first pressing block (8) is connected to one end of the first control plate (10), and one end of the second pressing block (9) is connected to one end of the second control plate (11).

2. A milling machine workpiece clamping fixture according to claim 1, characterized in that: Both the first fixing plate (5) and the second fixing plate (6) are provided with mounting grooves, and one side of the mounting groove on the second fixing plate (6) is provided with an inclined surface.

3. A milling machine workpiece clamping fixture according to claim 1, characterized in that: The length of the first control plate (10) is greater than the length of the second control plate (11).

4. A milling machine workpiece clamping fixture according to claim 1, characterized in that: The four corners of the base (1) are provided with threaded holes, and a fixing bolt (12) is screwed into each threaded hole.

5. The milling machine workpiece clamping fixture according to claim 1, characterized in that: The rotation connection between the triangular swing block (13) and the L-shaped support plate (4) is located on one side of the center.

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