Tool clamp of numerical control lathe

Abstract

The utility model relates to the technical field of work fixtures, and discloses a numerical control lathe work fixture which comprises a working table, a first driving motor and a third driving motor, a plurality of moving strips are arranged on the working table, the moving strips are fixedly connected with a plurality of mounting blocks, a plurality of resistance strips are mounted on the mounting blocks, and the resistance strips are fixedly connected with the first driving motor and the third driving motor. The output end of the first driving motor is connected with a rotating shaft, driving bevel gears are installed at the two ends of the rotating shaft correspondingly, the driving bevel gears are connected with driven bevel gears in an engaged mode, the driven bevel gears are coaxially provided with rotating columns, the rotating columns penetrate through the workbench, and gears are installed on the rotating columns; according to the clamping device, the moving strip is connected with the mounting block, the resistance strips are mounted on the mounting block, the resistance strips and the mounting block are arc-shaped, and the clamping effect on a tubular workpiece is improved through mutual matching of the protruding ends on the resistance strips.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a tooling fixture for a numerically controlled lathe. 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 carrier inputs the CNC device, and the CNC device sends various control signals 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. CNC machine tools have better solved the problems of complex, precise, small batch, and multi-variety parts processing. They are flexible and high-efficiency automated machine tools, and fixtures are usually required during mechanical processing.

[0003] According to the Chinese patent publication number "CN217493438U", a patent document entitled "A CNC lathe fixture" is disclosed. The device uses a guide plate to implement tilt adjustment on the storage table. When clamping the workpiece, the fixture is only suitable for clamping plate-shaped workpieces, and the clamping effect on tubular workpieces is poor. The fixture cannot be adjusted according to the size of the workpiece, resulting in low practicality of the fixture.

[0004] Therefore, we designed a CNC lathe fixture. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art that the clamping effect of the tubular workpiece is poor and workpieces of different sizes cannot be clamped, and a tooling clamp for a CNC lathe is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A CNC lathe tooling fixture comprises a workbench and a first drive motor and a third drive motor, wherein a plurality of moving bars are arranged on the workbench, a plurality of mounting blocks are fixedly connected to the moving bars, a plurality of resistance bars are mounted on the mounting blocks, a rotating shaft is connected to the output end of the first drive motor, driving bevel gears are respectively mounted at both ends of the rotating shaft, the driving bevel gear is meshingly connected to a driven bevel gear, a rotating column is coaxially arranged on the driven bevel gear, the rotating column passes through the workbench, and a gear is mounted on the rotating column.

[0008] Preferably, the moving bar is provided with a plurality of teeth, the teeth are meshed and connected with the gear, the moving bar and the gear are located at the top of the workbench, and the mounting block is in an arc shape.

[0009] Preferably, a "T"-shaped groove is provided on the mounting block, a plurality of prismatic protrusions are provided on the resistance bar, a sliding rod is provided on the resistance bar, a strip-shaped hole is provided on the mounting block, and the sliding rod moves in the strip-shaped hole.

[0010] Preferably, a bearing frame is installed at the bottom end of the workbench, the bearing frame is connected to the first driving motor, and the driving bevel gear and the driven bevel gear are in a vertical position relationship.

[0011] Preferably, a fixing block is fixedly installed on the workbench, and an assembly frame is connected to the bottom end of the fixing block. The assembly frame is in an "L" shape, and the assembly frame is connected to the third driving motor.

[0012] Preferably, the output end of the third driving motor is connected to a screw rod, the screw rod is coaxially provided with a ball block, the ball block is connected to a limit plate, and the limit plate is always kept parallel to the workbench.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model adopts a moving bar connected with a mounting block, a resistance bar is installed on the mounting block, the resistance bar and the mounting block are in an arc shape, and the protruding ends on multiple resistance bars cooperate with each other to improve the clamping effect of the tubular workpiece.

[0015] 2. The utility model adopts a driven bevel gear coaxially provided with a rotating column, and a gear is installed on the rotating column. The driven bevel gear drives the gear to rotate to move the moving bar, thereby clamping workpieces of different sizes.

[0016] In summary, the utility model has a reasonable design and can not only effectively clamp tubular workpieces, but also clamp workpieces of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a CNC lathe fixture proposed by the utility model;

[0018] Figure 2 This is a front view of the overall structure of a CNC lathe fixture proposed by the utility model;

[0019] Figure 3 A schematic diagram of a vertical clamping structure of a CNC lathe fixture proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a transverse clamping structure of a CNC lathe fixture.

[0021] In the figure: 1. workbench; 2. first drive motor; 3. second drive motor; 4. moving bar; 5. mounting block; 6. resistance bar; 7. sliding rod; 8. rotating shaft; 9. driving bevel gear; 10. driven bevel gear; 11. rotating column; 12. gear; 13. fixing block; 14. screw; 15. assembly frame; 16. ball block; 17. limit plate; 18. supporting frame. DETAILED DESCRIPTION

[0022] Reference Figure 1-Figure 4 A CNC lathe fixture comprises a workbench 1, a first drive motor 2 and a third drive motor 3. A plurality of moving bars 4 are arranged on the workbench 1. The moving bars 4 are fixedly connected with a plurality of mounting blocks 5. The output end of the first drive motor 2 is connected with a rotating shaft 8. Active bevel gears 9 are respectively installed at both ends of the rotating shaft 8. The active bevel gear 9 is meshingly connected with a driven bevel gear 10. The driven bevel gear 10 is coaxially provided with a rotating column 11. The rotating column 11 passes through the workbench 1. A gear 12 is installed on the rotating column 11. A plurality of teeth are arranged on the moving bar 4. The teeth are meshingly connected with the gear 12. The moving bar 4 and the gear 12 are located at the top of the workbench 1. The mounting block 5 is in an arc shape. A carrier frame 18 is installed at the bottom of the workbench 1. The carrier frame 18 is connected to the first drive motor 2. Machine 2, active bevel gear 9 and driven bevel gear 10 are in vertical position relationship. After the workpiece is placed on the workbench 1, the first drive motor 2 is driven to drive the rotating shaft 8 to rotate. The rotating shaft 8 drives multiple active bevel gears 9 to rotate synchronously during the rotation process. The multiple active bevel gears 9 drive the multiple driven bevel gears 10 to rotate by virtue of the meshing connection relationship. The multiple driven bevel gears 10 rotate while rotating, and the multiple rotating columns 11 rotate while rotating. The multiple rotating columns 11 drive the multiple gears 12 to rotate when rotating. The gears 12 drive the multiple moving bars 4 to move in opposite directions on the workbench 1 by virtue of the meshing connection relationship. The moving bars 4 drive the mounting blocks 5 to move synchronously during the opposite movement, thereby clamping workpieces of different sizes.

[0023] A plurality of resistance bars 6 are installed on the mounting block 5, a "T"-shaped groove is provided on the mounting block 5, a plurality of prismatic protrusions are arranged on the resistance bar 6, a sliding rod 7 is provided on the resistance bar 6, a strip hole is provided on the mounting block 5, the sliding rod 7 moves in the strip hole, and the mounting block 5 is acted upon by the moving bar 4 while driving the resistance bar 6 to move synchronously until the resistance bar 6 fits the workpiece and clamps the workpiece, the plurality of resistance bars 6 are symmetrically arranged, and the prismatic protrusions on the symmetrically arranged resistance bars 6 are distributed in a clockwise direction, the resistance bar 6 is made of rubber material, which increases the friction force when clamping the workpiece without squeezing the workpiece to cause damage to the workpiece, and the clockwise distributed protrusions prevent the workpiece from being shifted in position between the plurality of resistance bars 6, thereby achieving effective clamping of the tubular workpiece.

[0024] A fixed block 13 is fixedly installed on the workbench 1, and an assembly frame 15 is connected to the bottom end of the fixed block 13. The assembly frame 15 is "L"-shaped. The assembly frame 15 is connected to the third drive motor 3. The output end of the third drive motor 3 is connected to the screw 14. The screw 14 is coaxially provided with a ball block 16. The ball block 16 is connected to a limit plate 17. The limit plate 17 always remains parallel to the workbench 1. By driving the third drive motor 3, the third drive motor 3 drives the screw 14 to rotate. During the rotation, the screw 14 causes the ball block 16 to move in the vertical direction. The ball block 16 drives the limit plate 17 to move while moving. When the limit plate 17 moves to the appropriate position, the limit plate 17 fits tightly with the top of the workpiece, further enhancing the clamping effect of the workpiece.

[0025] The working principle of the utility model is as follows: a moving bar 4 is arranged on the workbench 1, a plurality of mounting blocks 5 are fixedly connected to the moving bar 4, a plurality of resistance bars 6 are installed on the mounting blocks 5, a rotating shaft 8 is connected to the output end of the first driving motor 2, active bevel gears 9 are respectively installed at both ends of the rotating shaft 8, the active bevel gear 9 is meshingly connected with a driven bevel gear 10, a rotating column 11 is coaxially arranged on the driven bevel gear 10, the rotating column 11 passes through the workbench 1, a gear 12 is installed on the rotating column 11, and the moving bar 4 is driven to move by the rotation of the gear 12, so as to clamp tubular workpieces of different sizes.

[0026] 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 CNC lathe fixture, comprising a workbench (1), a first drive motor (2) and a third drive motor (3), characterized in that: The workbench (1) is provided with a plurality of moving bars (4), the moving bars (4) are fixedly connected with a plurality of mounting blocks (5), the mounting blocks (5) are provided with a plurality of resistance bars (6), the output end of the first drive motor (2) is connected with a rotating shaft (8), both ends of the rotating shaft (8) are respectively provided with driving bevel gears (9), the driving bevel gear (9) is meshingly connected with a driven bevel gear (10), the driven bevel gear (10) is coaxially provided with a rotating column (11), the rotating column (11) passes through the workbench (1), and a gear (12) is provided on the rotating column (11).

2. A CNC lathe fixture according to claim 1, characterized in that: The moving bar (4) is provided with a plurality of teeth, which are meshedly connected with the gear (12); the moving bar (4) and the gear (12) are located at the top of the workbench (1); and the mounting block (5) is in an arc shape.

3. A CNC lathe fixture according to claim 1, characterized in that: The mounting block (5) is provided with a T-shaped groove, the resistance bar (6) is provided with a plurality of prismatic protrusions, the resistance bar (6) is provided with a slide bar (7), the mounting block (5) is provided with a strip hole, and the slide bar (7) moves in the strip hole.

4. A CNC lathe fixture according to claim 1, characterized in that: A carrier frame (18) is installed at the bottom end of the workbench (1), and the carrier frame (18) is connected to the first drive motor (2). The driving bevel gear (9) and the driven bevel gear (10) are in a vertical position relationship.

5. The CNC lathe fixture according to claim 1, characterized in that: A fixed block (13) is fixedly mounted on the workbench (1), the bottom end of the fixed block (13) is connected to an assembly frame (15), the assembly frame (15) is in an "L" shape, and the assembly frame (15) is connected to a third drive motor (3).

6. The CNC lathe fixture according to claim 1, characterized in that: The output end of the third drive motor (3) is connected to a screw rod (14), the screw rod (14) is coaxially provided with a ball block (16), the ball block (16) is connected to a limit plate (17), and the limit plate (17) and the workbench (1) are always kept parallel.

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