Fixture positioning mechanism of turning and milling combination machine

Abstract

The utility model discloses a turning and milling combination machine clamp positioning mechanism which comprises a pneumatic chuck, a plurality of sliding grooves are formed in the top of the pneumatic chuck in a circumferential distribution mode, and sliding blocks are installed in the sliding grooves in a sliding mode. A clamping block is mounted at the top of the sliding block, a first groove is formed in the bottom of the sliding block, an inserting block is mounted in the first groove through a first spring, a second groove is formed in the inner wall of the bottom of the sliding groove, and a pressure sensor is mounted on the inner wall of the bottom of the second groove; a stress plate is mounted in the second groove through a second spring; during use, the clamping block is pushed towards the circle center of the pneumatic chuck in the sliding groove through the sliding block, the insertion block is driven to enter the second groove to press the stress plate, the sensor outputs a signal to the control panel, it is displayed that the clamping block is located at the initial position, initial positioning of the clamping block is completed, and the positioning accuracy is more accurate compared with manual installation positioning; and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of turning and milling machine tool fixtures, in particular to a turning and milling compound machine fixture positioning mechanism. Background Art

[0002] A turning-milling machine is a CNC machine tool that combines turning and milling functions in one device. It is used to process complex parts. The fixture positioning mechanism plays a vital role in the turning-milling machine. It ensures the installation position of the fixture before use and ensures the accurate positioning and stability of the subsequent workpiece during the processing.

[0003] During the fixture installation process of the turning and milling machine, it is difficult for the operator to confirm whether the clamp is correctly installed during manual installation. This lack of real-time feedback can easily lead to errors in the installation process. In addition, the manual installation and positioning of the clamp is prone to errors, resulting in inaccurate positioning of the clamping device, affecting processing accuracy and product quality. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, one purpose of the utility model is to propose a turning and milling compound machine fixture positioning mechanism, which pushes the slider in the slide groove toward the center of the pneumatic chuck, drives the insert block into the second groove to press the pressure sensor output signal to determine the positioning information of the clamp block.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turning and milling compound machine fixture positioning mechanism, including a pneumatic chuck, the top of the pneumatic chuck is provided with a plurality of slide grooves distributed in a circumferential manner, and a slider is slidably installed inside the slide groove; a clamping block is installed on the top of the slider, and a first groove is provided at the bottom of the slider, and an insert block is installed inside the first groove through a first spring, and a second groove is provided on the bottom inner wall of the slide groove, a pressure sensor is installed on the bottom inner wall of the second groove, and a force plate is installed inside the second groove through a second spring.

[0007] Preferably, an air inlet hole is provided on the outer wall of the pneumatic chuck.

[0008] Preferably, an axial hole is provided at the center of the pneumatic chuck, and a limiting ring is installed on the inner wall of the axial hole.

[0009] Preferably, the top opening of the second groove is provided with an arc-shaped chamfer.

[0010] Preferably, the opening size of the second groove is larger than the outer diameter of the plug block.

[0011] Preferably, the insert block is wedge-shaped, and the wedge-shaped surface faces the arc-shaped chamfer.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: when the utility model is used, the clamping block is pushed toward the center of the pneumatic chuck in the slide groove by the slider, driving the insert block to enter the second groove to press the force plate, so that the sensor outputs a signal to the control panel, indicating that the clamping block is in the initial position, the positioning is accurate, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a fixture positioning mechanism of a turning and milling compound machine according to an embodiment of the utility model;

[0014] Figure 2 It is a cross-sectional structural diagram of a fixture positioning mechanism of a turning and milling compound machine according to an embodiment of the utility model;

[0015] Figure 3 It is a partial structural schematic diagram of the slide groove, the slide block and the clamping block in the clamp positioning mechanism of the turning and milling compound machine according to the embodiment of the utility model.

[0016] In the figure: 1. pneumatic chuck; 2. slide groove; 3. slider; 4. clamping block; 5. limit ring; 6. air inlet hole; 7. shaft hole; 8. first groove; 9. second groove; 10. first spring; 11. insert block; 12. second spring; 13. pressure plate; 14. pressure sensor; 15. arc chamfer. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3 An embodiment of the utility model provides a fixture positioning mechanism for a turning and milling compound machine, comprising: a pneumatic chuck 1.

[0019] Among them, the top of the pneumatic chuck 1 is provided with multiple slide grooves 2 distributed in a circle, a slider 3 is slidably installed inside the slide groove 2, the outer wall of the pneumatic chuck 1 is provided with an air inlet hole 6, and a clamping block 4 is installed on the top of the slider 3. The pneumatic chuck 1 is used as a clamping device for a turning and milling compound machine tool. When installing the clamping block 4 on the pneumatic chuck 1, the clamping block 4 is fixed on the slider 3, and the slider 3 is slid into the slide groove 2, and the movement of the slider 3 is pneumatically controlled by connecting the air inlet hole 6 through an external control air pump.

[0020] In this embodiment, Figure 1 As shown, a first groove 8 is provided at the bottom of the slider 3, an insert block 11 is installed inside the first groove 8 through a first spring 10, a second groove 9 is provided on the bottom inner wall of the slide groove 2, a pressure sensor 14 is installed on the bottom inner wall of the second groove 9, and a force plate 13 is installed inside the second groove 9 through a second spring 12.

[0021] When in use, the installed multiple clamping blocks 4 are pushed toward the center of the pneumatic chuck 1, so that the inserting block 11 moves along the slide groove 2 to above the second groove 9, and the inserting block 11 is pushed into the second groove 9 under the action of the first spring 10, and the force plate 13 is pressed to push the second spring 12 to squeeze the pressure sensor 14. The pressure sensor 14 is electrically connected to the control panel of the milling machine, so that the pressure sensor 14 is subjected to pressure and outputs a signal to the control panel of the milling machine for display. After seeing the data change, the operator can judge that the clamping block 4 on the pneumatic chuck 1 is in the initial position, completing the initial positioning of the clamping block 4

[0022] Furthermore, the top opening of the second groove 9 is provided with an arc chamfer 15, the shape of the insert block 11 is wedge-shaped, and the wedge surface faces the arc chamfer 15. When the slider 3 moves away from the center of the pneumatic chuck 1, the insert block 11 can use the wedge surface to contact the arc chamfer 15 and move upward into the first groove 8, thereby disengaging the insert block 11 from the second groove 9 and avoiding the slider 3 from getting stuck.

[0023] like Figure 1 As shown, an axial hole 7 is provided at the center of the pneumatic chuck 1 , and a limiting ring 5 is installed on the inner wall of the axial hole 7 . The limiting ring 5 can limit the movement of the slider 3 in the slide groove 2 into the axial hole 7 .

[0024] It should be noted that the opening size of the second groove 9 is larger than the outer diameter of the insert block 11 .

[0025] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: when the utility model is used, the pneumatic chuck 1 is used as a clamping device for a turning and milling compound machine tool. When installing the clamping block 4 on the pneumatic chuck 1, the clamping block 4 is fixed on the slider 3, and the slider 3 is slid into the slide groove 2.

[0026] After installing multiple clamping blocks 4 in sequence along the circumference, push the multiple clamping blocks 4 toward the center of the pneumatic chuck 1, so that the insert block 11 moves along the slide groove 2 to above the second groove 9, and under the action of the first spring 10, push the insert block 11 into the second groove 9, and press the force plate 13 to push the second spring 12 to squeeze the pressure sensor 14. The pressure sensor 14 is subjected to pressure and outputs a signal to the control panel of the turning and milling machine for display. After seeing the data changes, the operator can judge that the clamping block 4 on the pneumatic chuck 1 is in the initial position, completing the initial positioning of the clamping block 4, and the positioning accuracy is more accurate than manual installation and positioning.

[0027] After completing the initial position positioning, the control air pump of the pneumatic chuck 1 is started to drive the slider 3 to move in the slide groove 2. When the slider 3 moves away from the center of the pneumatic chuck 1, the insert block 11 can use the wedge surface to disengage from the second groove 9 to avoid the slider 3 from getting stuck.

[0028] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fixture positioning mechanism for a lathe-milling composite machine, comprising a pneumatic chuck (1), a plurality of slide grooves (2) are arranged on the top of the pneumatic chuck (1) in a circumferential distribution, a slider (3) is slidably mounted inside the slide groove (2), and the characteristics are: A clamping block (4) is installed on the top of the slider (3), a first groove (8) is provided at the bottom of the slider (3), an insert block (11) is installed inside the first groove (8) via a first spring (10), a second groove (9) is provided on the bottom inner wall of the slide groove (2), a pressure sensor (14) is installed on the bottom inner wall of the second groove (9), and a force plate (13) is installed inside the second groove (9) via a second spring (12).

2. A fixture positioning mechanism for a turning and milling machine according to claim 1, characterized in that: An air inlet hole (6) is provided on the outer wall of the pneumatic chuck (1).

3. The fixture positioning mechanism for a turning and milling machine according to claim 1, characterized in that: An axial hole (7) is provided at the center of the pneumatic chuck (1), and a limit ring (5) is installed on the inner wall of the axial hole (7).

4. The fixture positioning mechanism for a turning and milling machine according to claim 1, characterized in that: The top opening of the second groove (9) is provided with an arc-shaped chamfer (15).

5. The fixture positioning mechanism for a turning and milling machine according to claim 1, characterized in that: The opening size of the second groove (9) is larger than the outer diameter of the insert block (11).

6. The fixture positioning mechanism for a turning and milling machine according to claim 4, characterized in that: The insert block (11) is in a wedge shape, and the wedge surface faces the arc chamfer (15).

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