Workpiece overturning clamp for numerical control machine tool

Abstract

The workpiece overturning clamp for the numerical control machine tool relates to the technical field of machine tool clamps and comprises a bearing frame and an operation table, supporting plates are fixed to the upper sides of the front end and the rear end of the bearing frame, bearings are installed on the inner sides of the supporting plates, and first rotating shafts are connected into the bearings in a penetrating mode; a connecting base is fixed to the outer surface of the first rotating shaft, the operation table is located at the upper end of the connecting base, the side, away from the connecting base, of the first rotating shaft is sleeved with a transmission gear, a protruding grab handle is installed on the side, away from the transmission gear, of the first rotating shaft, and a limiting rack is installed on the lower portion, close to the transmission gear, of the bearing frame. According to the workpiece overturning clamp for the numerical control machine tool, through the arrangement of the supporting plate, the bearing, the first rotating shaft, the connecting base, the operation table, the transmission gear, the protruding grab handle, the limiting rack, the limiting sliding block and the limiting sliding groove, the overturning clamp can conduct clamping and fixing operation on a workpiece in different directions.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool fixtures, in particular to a workpiece turning fixture for a numerically controlled machine tool. Background Art

[0002] A CNC machine tool is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, and represent them in coded numbers. The information is input into the CNC device through an information carrier, and various control signals are sent out by the CNC device after calculation and processing to control the movement of the machine tool. The parts are automatically processed according to the shape and size required by the drawing. Therefore, a flip fixture is needed to fix the workpiece when processing it.

[0003] During use, most of the existing flip clamps adopt a fixed angle, and the clamp as a whole is horizontal to clamp and fix the workpiece. Due to the special processing requirements of some workpieces (drilling inclined holes), the workpiece needs to be clamped and fixed in different directions. However, the existing flip clamps are not convenient for clamping and fixing operations in different directions, so the flip clamps have certain usage limitations and cannot meet people's needs.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a workpiece turning fixture for CNC machine tools is proposed. Utility Model Content

[0005] The utility model aims to provide a workpiece turning fixture for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a workpiece flipping fixture for a CNC machine tool, comprising a supporting frame and an operating table, a supporting plate is fixed to the upper side of the front and rear ends of the supporting frame, and a bearing is installed on the inner side of the supporting plate, a rotating shaft 1 is penetrated and connected to the inside of the bearing, and a connecting seat is fixed to the outer surface of the rotating shaft 1, the operating table is located at the upper end of the connecting seat, a transmission gear is sleeved on the side of the rotating shaft 1 away from the connecting seat, a protruding handle is installed on the side of the rotating shaft 1 away from the transmission gear, a limiting rack is installed on the supporting frame near the bottom of the transmission gear, and a limiting slider is fixedly connected to the middle of the bottom of the limiting rack, and a limiting slide groove is provided on the supporting frame near the bottom of the limiting rack.

[0007] Furthermore, the operating table is fixedly connected to the rotating shaft 1 through a connecting seat, and the rotating shaft 1 is rotatably connected to the supporting plate through a bearing.

[0008] Furthermore, the transmission gear is meshingly connected with the limiting rack, and there are two transmission gears.

[0009] Furthermore, a measuring disk is installed on the outer surface of the support plate, a connecting block is fixed on a side of the operating table close to the measuring disk, and a pointer is installed at the front end of the operating table through the connecting block.

[0010] Furthermore, an outer main frame is installed at the left and right ends of the outside of the supporting frame, and a second rotating shaft is installed at the left and right ends of the outer main frame.

[0011] Furthermore, a driving motor is installed on the left side of the outer main frame, and the output end of the driving motor is rotatably connected to the supporting frame through a second rotating shaft.

[0012] Furthermore, a fixed clamping plate is installed on the left side of the upper surface of the operating table, an electric telescopic rod is installed on the right side of the upper surface of the operating table, and a movable clamping plate is installed on the output end of the electric telescopic rod.

[0013] The utility model provides a workpiece turning fixture for a CNC machine tool, which has the following beneficial effects:

[0014] 1. The utility model can utilize external force to drive the rotating shaft with the protruding handle to rotate through the arrangement of the support plate, the bearing, the rotating shaft 1, the connecting seat, the operating table, the transmission gear, the protruding handle, the limiting rack, the limiting slider and the limiting slide groove, and with the cooperation of the bearing, the operating table in a horizontal state can be changed to a certain angle, so that the flip fixture can clamp and fix the workpiece in different directions, and at the same time, the meshing connection between the transmission gear and the limiting rack can be used to limit the position of the operating table with changed angle, so that the flip fixture will not easily change its angle during use, thereby ensuring its overall stability in use.

[0015] 2. The utility model can measure the rotation angle of the operating table by setting the measuring disk, the connecting block and the pointer, so as to achieve precise control of the rotation angle of the operating table, thereby improving the overall use effect of the flip fixture. The installation of the outer main frame, the second rotating shaft and the driving motor can provide the supporting frame with the power to flip, and realize the effect of automatic unloading. At the same time, the workpiece can be clamped under the setting of the fixed clamp, the electric telescopic rod and the movable clamp. The overall structure is simple, so it is convenient for people to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a workpiece turning fixture for a CNC machine tool according to the utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of the main body of a workpiece turning fixture for a CNC machine tool according to the utility model;

[0018] Figure 3The utility model is a schematic diagram of a partial three-dimensional structure of a partition vertical plate of a workpiece turning fixture for a CNC machine tool.

[0019] In the figure: 1. supporting frame; 2. supporting plate; 3. bearing; 4. rotating axis 1; 5. connecting seat; 6. operating table; 7. transmission gear; 8. protruding handle; 9. limit rack; 10. limit slider; 11. limit slide groove; 12. measuring plate; 13. connecting block; 14. pointer; 15. outer main frame; 16. rotating axis 2; 17. driving motor; 18. fixed splint; 19. electric telescopic rod; 20. movable splint. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a workpiece turning fixture for a CNC machine tool comprises a supporting frame 1 and an operating table 6, a supporting plate 2 is fixed to the upper side of the front and rear ends of the supporting frame 1, and a bearing 3 is installed on the inner side of the supporting plate 2, a rotating shaft 4 is penetrated and connected inside the bearing 3, and a connecting seat 5 is fixed to the outer surface of the rotating shaft 4, the operating table 6 is located at the upper end of the connecting seat 5, a transmission gear 7 is sleeved on the side of the rotating shaft 4 away from the connecting seat 5, a protruding handle 8 is installed on the side of the rotating shaft 4 away from the transmission gear 7, a limit rack 9 is installed on the supporting frame 1 below the transmission gear 7, and the bottom of the limit rack 9 A limiting slide block 10 is fixedly connected to the middle part, a limiting slide groove 11 is provided on the supporting frame 1 near the lower part of the limiting rack 9, the operating table 6 is fixedly connected to the rotating shaft 4 through the connecting seat 5, and the rotating shaft 4 is rotatably connected to the supporting plate 2 through the bearing 3, the transmission gear 7 is meshingly connected to the limiting rack 9, and the number of the transmission gears 7 is two, the supporting plate 2, the bearing 3, the rotating shaft 4, the connecting seat 5, the operating table 6, the transmission gear 7, the protruding handle 8, the limiting rack 9, the limiting slide block 10 and the limiting slide groove 11 can enable the flip fixture to clamp and fix the workpiece in different directions.

[0022] like Figure 1 and Figure 3As shown, a measuring plate 12 is installed on the outer surface of the support plate 2, a connecting block 13 is fixed on a side of the operating table 6 close to the measuring plate 12, and a pointer 14 is installed at the front end of the operating table 6 through the connecting block 13. The arrangement of the measuring plate 12, the connecting block 13 and the pointer 14 can measure the rotation angle of the operating table 6. An outer main frame 15 is installed on the left and right ends of the outer supporting frame 1, and a rotating shaft 16 is installed on the left and right ends of the outer main frame 15. A driving motor 17 is installed on the left side of the outer main frame 15, and the driving motor 17 is installed on the left side of the outer main frame 15. The output end of the driving motor 17 is rotatably connected to the supporting frame 1 through the rotating shaft 16. The installation of the outer main frame 15, the rotating shaft 16 and the driving motor 17 can provide the supporting frame 1 with power to flip. A fixed clamp 18 is installed on the left side of the upper end surface of the operating table 6, and an electric telescopic rod 19 is installed on the right side of the upper end surface of the operating table 6, and a movable clamp 20 is installed on the output end of the electric telescopic rod 19. The setting of the fixed clamp 18, the electric telescopic rod 19 and the movable clamp 20 can be used to clamp the workpiece.

[0023] Working principle: The CNC machine tool uses a workpiece flip fixture, first according to Figure 1 , Figure 2 and Figure 3The structure shown in , when in use, the workpiece to be processed can be placed on the operating table 6 first, and one side of it is close to the fixed clamping plate 18, and then the electric telescopic rod 19 (which is a conventional electric telescopic rod in the prior art) on the operating table 6 is started, so that it drives the movable clamping plate 20 at the output end to change its position and approach the other side of the workpiece, thereby completing the clamping work of the workpiece, and then the machine tool will process the workpiece clamped on the operating table 6, when the workpiece is processed, the drive motor 17 (which is a conventional motor in the prior art) on the outer main frame 15 can be started, so that it drives the supporting frame 1 connected to the drive motor 17 through the rotating shaft 2 16 to flip 180 degrees, and then the electric telescopic rod 19 is started again, so that it drives the movable clamping plate 20 to separate from the workpiece, thereby realizing the unloading work, when the workpiece is processed, if the workpiece to be processed has special processing requirements for drilling inclined holes, it is necessary to adjust the horizontal operating table 6 to a certain angle, then the protruding handle 8 can be held by hand and rotated, this At the same time, with the cooperation of the bearing 3 on the support plate 2, the rotating shaft 4 connected to the protruding handle 8 can be driven to rotate synchronously, and the operating table 6 connected to the rotating shaft 4 through the connecting seat 5 will also rotate in the same direction. During the rotation process, the pointer 14 connected to the operating table 6 through the connecting block 13 will change its position on the surface of the measuring disk 12. People can adjust the rotation angle of the operating table 6 by pointing the pointer 14 on the measuring disk 12. When it is adjusted to a suitable angle, the protruding handle 8 can be stopped from rotating. Before pausing, the transmission gear 7 on the rotating shaft 4 will be meshed and connected with the limit rack 9 below, and the limit rack 9 will change its position due to the sliding of the bottom limit slider 10 in the limit slide groove 11 on the supporting frame 1. Therefore, when the protruding handle 8 stops rotating, the limit slider 10 will no longer change its position, but will limit the position of the operating table 6 after the angle is adjusted. After that, the workpiece is placed on the operating table 6 after the angle is adjusted and clamped, and then the machine tool can be started to process the workpiece.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A workpiece turning fixture for a CNC machine tool, comprising a supporting frame (1) and an operating table (6), characterized in that: A support plate (2) is fixed on the upper side of the front and rear ends of the support frame (1), and a bearing (3) is installed on the inner side of the support plate (2). A rotating shaft (4) is connected to the inside of the bearing (3), and a connecting seat (5) is fixed to the outer surface of the rotating shaft (4). The operating table (6) is located at the upper end of the connecting seat (5). A transmission gear (7) is sleeved on the side of the rotating shaft (4) away from the connecting seat (5). A protruding handle (8) is installed on the side of the rotating shaft (4) away from the transmission gear (7). A limit rack (9) is installed on the support frame (1) below the transmission gear (7), and a limit slider (10) is fixedly connected to the middle of the bottom of the limit rack (9). A limit slide groove (11) is provided on the support frame (1) below the limit rack (9).

2. A workpiece turning fixture for a CNC machine tool according to claim 1, characterized in that: The operating table (6) is fixedly connected to the rotating shaft (4) via a connecting seat (5), and the rotating shaft (4) is rotatably connected to the supporting plate (2) via a bearing (3).

3. The workpiece turning fixture for a CNC machine tool according to claim 1, characterized in that: The transmission gear (7) is meshingly connected with the limiting rack (9), and there are two transmission gears (7).

4. The workpiece turning fixture for a CNC machine tool according to claim 1, characterized in that: A measuring disk (12) is installed on the outer surface of the support plate (2), a connecting block (13) is fixed on a side of the operating table (6) close to the measuring disk (12), and a pointer (14) is installed at the front end of the operating table (6) through the connecting block (13).

5. The workpiece turning fixture for a CNC machine tool according to claim 1, characterized in that: The supporting frame (1) is provided with an outer main frame (15) at both left and right ends outside the supporting frame (1), and a second rotating shaft (16) is provided at both left and right ends of the outer main frame (15).

6. The workpiece turning fixture for a CNC machine tool according to claim 5, characterized in that: A driving motor (17) is installed on the left side of the outer main frame (15), and the output end of the driving motor (17) is rotationally connected to the supporting frame (1) through a second rotating shaft (16).

7. The workpiece turning fixture for a CNC machine tool according to claim 1, characterized in that: A fixed clamping plate (18) is installed on the left side of the upper end surface of the operating table (6), an electric telescopic rod (19) is installed on the right side of the upper end surface of the operating table (6), and a movable clamping plate (20) is installed on the output end of the electric telescopic rod (19).

Images