Workpiece positioning device for vertical machining center

Abstract

The utility model discloses a workpiece positioning device for a vertical machining center, which comprises a base and a moving plate, a double-thread screw is arranged on the base through a driving motor, two nuts are sleeved on the double-thread screw in a threaded manner, the nuts are connected with the base through a limiting mechanism, the nuts are connected with the moving plate through a synchronizing mechanism, and the moving plate is connected with the base through the synchronizing mechanism. An extension plate is mounted on the movable plate, an extrusion groove is formed in the outer wall of the extension plate, an anti-falling block is arranged in the extrusion groove through an extrusion mechanism, and an anti-falling groove matched with the extension plate and the anti-falling block is formed in the base. The connecting groove is formed in the movable plate, the synchronous groove is formed in the connecting groove, meanwhile, the nut is arranged on the double-thread screw, and the limiting block and the synchronous block are arranged on the nut, so that the movable plate is conveniently disassembled and assembled relative to assemblies such as the double-thread screw, and convenience is provided for model replacement of the movable plate.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece positioning, in particular to a workpiece positioning device for a vertical machining center. Background Art

[0002] With the development of industry, the requirements for workpiece processing accuracy in mechanical processing are becoming higher and higher. The precise positioning device is an important component of the high-speed linear rail machining center. It fixes the workpiece in the exact position of the machine tool to complete various processing of the workpiece. It requires both accurate positioning and reliable clamping.

[0003] Reference Publication (Announcement) No.: CN216781080U, specifically "Precision Positioning Device for Machining Center", the utility model discloses a precision positioning device for machining center, specifically relates to the technical field of workpiece positioning, including a base, a motor is installed on one side of the top surface of the base, the output end of the motor is fixedly connected with a bidirectional threaded rod, the end bearing of the bidirectional threaded rod is connected with a fixed plate body, the bottom surface of the fixed plate body is fixedly connected to the top surface of the base, the circumferential side walls at both ends of the bidirectional threaded rod are respectively threadedly sleeved with a screw sleeve plate body, and the bottom surfaces of the two screw sleeve plate bodies are provided with a limited position assembly. The above scheme has the problem that when the height of the workpiece to be positioned is relatively high, in order to ensure the stability of the clamping and positioning, the height of the moving plate needs to be changed, and the moving plate in the above scheme is directly threadedly sleeved on the double-headed screw rod, and when replacing, the double-headed screw rod and components such as the drive motor need to be disassembled, and the disassembly of the above components is very troublesome, which is not conducive to replacing moving plates of different models. In order to cope with this technical problem, a workpiece positioning device for a vertical machining center is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a workpiece positioning device for a vertical machining center.

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

[0006] A workpiece positioning device for a vertical machining center includes a base and a movable plate, wherein the base is provided with a double-headed screw through a driving motor, and two nuts are provided on a threaded sleeve of the double-headed screw, and the nuts are connected to the base through a limiting mechanism, and the nuts are connected to the movable plate through a synchronization mechanism, and an extension plate is installed on the movable plate, and an extrusion groove is provided on the outer wall of the extension plate, and an anti-slip block is provided in the extrusion groove through an extrusion mechanism, and an anti-slip groove cooperating with the extension plate and the anti-slip block is provided on the base.

[0007] Preferably, the limiting mechanism comprises a limiting block arranged on the outer wall of the nut, and the base is provided with a limiting opening corresponding to the limiting block.

[0008] Preferably, the synchronization mechanism comprises a synchronization block arranged on the nut, a connection groove is provided on the surface of the movable plate corresponding to the nut, and a synchronization groove corresponding to the synchronization block is provided on the inner wall of the connection groove.

[0009] Preferably, the extrusion mechanism comprises an extrusion spring arranged in the extrusion groove, and two ends of the extrusion spring are elastically connected to the outer wall of the anti-slip block and the inner wall of the extrusion groove respectively.

[0010] Preferably, the vertical cross-sectional view of the anti-slip groove is in a horizontal T-shape, and the limit block and the synchronization block are both welded on the outer wall of the nut.

[0011] Preferably, the vertical outer walls on both sides of the limiting block are in sliding contact with the vertical inner walls on both sides of the limiting opening, and the thickness of the anti-slip block is the same as the height of the vertical part of the anti-slip groove.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting a connecting groove on the movable plate, setting a synchronous groove on the connecting groove, and setting a nut on the double-headed screw, and setting a limit block and a synchronous block on the nut, the movable plate can be conveniently disassembled and assembled relative to components such as the double-headed screw, which provides convenience for its model replacement.

[0014] 2. By setting the extension plate, anti-slip block, extrusion spring and anti-slip groove, the stability of the connection between the moving plate and the double-headed screw and other components is achieved, and the convenient disassembly and assembly of the anti-slip block and the anti-slip groove is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a workpiece positioning device for a vertical machining center proposed by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0017] Figure 3 for Figure 1 Schematic diagram of the vertical section structure;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure at B;

[0019] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at location C.

[0020] In the figure: 1 base, 2 double-headed screw, 3 drive motor, 4 moving plate, 5 connecting groove, 6 extension plate, 7 anti-slip block, 8 nut, 9 limit opening, 10 limit block, 11 synchronization block, 12 anti-slip groove, 13 synchronization groove, 14 extrusion groove, 15 extrusion spring. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-5 A workpiece positioning device for a vertical machining center includes a base 1 and a movable plate 4. Other components are also arranged on the movable plate 4, and other components are also arranged on the base 1. The above components are partially drawn but not numbered in this scheme, and some are not drawn. For details, please refer to the public (announcement) number: CN216781080U, which is specifically "Precision positioning device for machining center".

[0023] A double-headed screw 2 is provided on the base 1 through a driving motor 3, and two nuts 8 are threadedly sleeved on the double-headed screw 2. The nuts 8 are connected to the base 1 through a limiting mechanism, and the nuts 8 are connected to the movable plate 4 through a synchronization mechanism. An extension plate 6 is installed on the movable plate 4, and an extrusion groove 14 is provided on the outer wall of the extension plate 6. An anti-slip block 7 is provided in the extrusion groove 14 through an extrusion mechanism, and an anti-slip groove 12 cooperating with the extension plate 6 and the anti-slip block 7 is provided on the base 1.

[0024] The limiting mechanism includes a limiting block 10 arranged on the outer wall of the nut 8, and a limiting opening 9 corresponding to the limiting block 10 is opened on the base 1. The limiting block 10 is located in the limiting opening 9 to limit the nut 8, thereby effectively preventing the nut 8 from rotating with the double-headed screw 2.

[0025] The synchronization mechanism includes a synchronization block 11 arranged on the nut 8, a connecting groove 5 is provided on the surface of the movable plate 4 corresponding to the nut 8, and a synchronization groove 13 corresponding to the synchronization block 11 is provided on the inner wall of the connecting groove 5. When the synchronization block 11 is in the synchronization groove 13, when the nut 8 moves on the double-headed screw 2, the movable plate 4 can be synchronously moved above the base 1.

[0026] The extrusion mechanism includes an extrusion spring 15 arranged in the extrusion groove 14, and the two ends of the extrusion spring 15 are elastically connected to the outer wall of the anti-slip block 7 and the inner wall of the extrusion groove 14 respectively. The elastic potential energy provided by the extrusion spring 15 can realize the extrusion and pushing operation of the anti-slip block 7 without external interference, so that when the extension plate 6 is in the anti-slip groove 12, the anti-slip block 7 is in the horizontal part of the anti-slip groove 12.

[0027] The vertical cross-section of the anti-slip groove 12 is in a horizontal T-shape, and the limit block 10 and the synchronization block 11 are welded on the outer wall of the nut 8. The above shape can be specifically referred to in the attached Figure 4 As shown, the limiting block 10 can enter the limiting opening 9 from below the base 1 and be welded to the nut 8.

[0028] The vertical outer walls on both sides of the limit block 10 are in sliding contact with the vertical inner walls on both sides of the limit opening 9. This design makes it impossible for the limit block 10 to move horizontally in the limit opening 9. The thickness of the anti-slip block 7 is the same as the height of the vertical part of the anti-slip groove 12. This design makes it impossible for the anti-slip block 7 to move vertically in the anti-slip groove 12.

[0029] When the utility model is used, when it is necessary to replace the movable plate 4 of a different type, specifically a movable plate 4 with a higher or lower height, it is necessary to disassemble it and the nut 8 at this time. First, the hand enters the horizontal part of the anti-slip groove 12, presses the anti-slip block 7 to compress the extrusion spring 15, and the anti-slip block 7 enters the extrusion groove 14 and disengages from the anti-slip groove 12, and then the vertical limit of the extension plate 6 and other components is released, and the movable plate 4 is directly lifted up, the synchronous groove 13 is disengaged from the synchronous block 11, and the movable plate 4 is disengaged from the nut 8 and other components, and then other movable plates 4 are replaced and vertically lowered again for installation, ensuring that the anti-slip block 7 is finally in the horizontal part of the anti-slip groove 12, and ensuring that the synchronous block 11 is in the synchronous groove 13.

[0030] 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 positioning device for a vertical machining center, comprising a base (1) and a movable plate (4), characterized in that: The base (1) is provided with a double-headed screw (2) through a driving motor (3), two nuts (8) are threadedly sleeved on the double-headed screw (2), the nuts (8) are connected to the base (1) through a limiting mechanism, the nuts (8) are connected to the moving plate (4) through a synchronization mechanism, an extension plate (6) is installed on the moving plate (4), an extrusion groove (14) is provided on the outer wall of the extension plate (6), an anti-slip block (7) is provided in the extrusion groove (14) through an extrusion mechanism, and an anti-slip groove (12) cooperating with the extension plate (6) and the anti-slip block (7) is provided on the base (1).

2. A workpiece positioning device for a vertical machining center according to claim 1, characterized in that: The limiting mechanism comprises a limiting block (10) arranged on the outer wall of the nut (8), and the base (1) is provided with a limiting opening (9) corresponding to the limiting block (10).

3. A workpiece positioning device for a vertical machining center according to claim 2, characterized in that: The synchronization mechanism comprises a synchronization block (11) arranged on a nut (8); a connection groove (5) is provided on a surface of the movable plate (4) corresponding to the nut (8); and a synchronization groove (13) corresponding to the synchronization block (11) is provided on an inner wall of the connection groove (5).

4. A workpiece positioning device for a vertical machining center according to claim 3, characterized in that: The extrusion mechanism comprises an extrusion spring (15) arranged in the extrusion groove (14), and two ends of the extrusion spring (15) are elastically connected to the outer wall of the anti-slip block (7) and the inner wall of the extrusion groove (14) respectively.

5. A workpiece positioning device for a vertical machining center according to claim 4, characterized in that: The vertical cross-section of the anti-slip groove (12) is in a transverse T-shape, and the limit block (10) and the synchronization block (11) are both welded and arranged on the outer wall of the nut (8).

6. A workpiece positioning device for a vertical machining center according to claim 5, characterized in that: The vertical outer walls on both sides of the limiting block (10) are in sliding contact with the vertical inner walls on both sides of the limiting opening (9), and the thickness of the anti-slip block (7) is the same as the height of the vertical part of the anti-slip groove (12).

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