Milling jig

Abstract

The utility model discloses a milling machine fixture which comprises a positioning cylinder, an installation cylinder is movably connected outside the positioning cylinder, one end of the installation cylinder is fixedly connected with a fixing plate, and the center line of the installation cylinder and the center line of the positioning cylinder are located on the same vertical plane. A driving mechanism used for controlling the multiple sets of clamps to move is arranged in the positioning cylinder. The milling jig is provided with the through groove, a workpiece is placed between the positioning clamping plates during machining, the driving motor is started to drive the rotating disc to rotate through the speed reducer, the rotating disc drives the four sets of arc-shaped push plates to move through the driving groove, and the arc-shaped push plates drive the connecting sliding blocks and the positioning clamping plates at one ends to contract towards the middle through the connecting plates; after machining, the driving motor is started to continuously drive the rotating disc to rotate, meanwhile, the reset spring can eject the arc-shaped push plate out through the top plate to open the positioning clamping plate so as to facilitate discharging, and the problem that movement of multiple sets of clamps cannot be controlled at the same time is solved.

Description

Technical Field

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

[0002] Milling machines are commonly used processing equipment in industrial production. They use various milling cutters to mill workpieces to make the workpieces into the required size and shape. They play a very important role in the field of industrial production. Milling machines are generally equipped with special fixtures when processing workpieces. The fixtures are used to fix the workpieces to ensure the stability of the workpiece during processing, thereby improving the processing accuracy.

[0003] However, the milling machine fixtures currently used in the industrial production field still have some defects in use. During operation, multiple sets of fixtures cannot be driven to move at the same time, resulting in insufficient balance between the sets of fixtures after clamping, thereby affecting the clamping stability.

[0004] Now a new type of milling machine fixture is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a milling machine fixture to solve the problem in the above background technology that the movement of multiple sets of fixtures cannot be controlled simultaneously.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a milling machine fixture, comprising a positioning cylinder, wherein the outer portion of the positioning cylinder is movably connected to a mounting cylinder, one end of the mounting cylinder is fixedly connected to a fixing plate, the centerline of the mounting cylinder and the centerline of the positioning cylinder are in the same vertical plane, and a driving mechanism for controlling the movement of multiple sets of fixtures is provided inside the positioning cylinder;

[0007] The driving mechanism includes a turntable, a turntable is movably connected to the interior of the mounting cylinder, a driving groove is opened at one end of the turntable, both sides and both ends of the driving groove are movably connected to a group of arc-shaped push plates, one side of the arc-shaped push plate is fixedly connected to a top plate, one end of the positioning cylinder is fixedly connected to a cross plate, both ends and both sides of the cross plate are respectively opened with a group of movable grooves, one end of the movable groove is fixedly connected to a return spring, one end of the return spring is fixedly connected to a connecting piece, one end of the fixed plate is fixedly connected to a reducer, and one end of the reducer is fixedly connected to a driving motor.

[0008] Preferably, the output end of the driving motor is fixedly connected to the input end of the reducer, and the output end of the reducer passes through the fixing plate and extends to the inside of the mounting cylinder and is fixedly connected to the turntable.

[0009] Preferably, the top plate extends to the inside of the movable groove and is fixedly connected to the connecting piece, and the top plate is slidably connected to the movable groove.

[0010] Preferably, a group of sliding grooves are respectively provided on both sides and both ends of one end of the positioning cylinder, a through groove is provided at one end inside the sliding groove, one end of the arc-shaped push plate is fixedly connected to a connecting plate, the connecting plate passes through the through groove and is fixedly connected to a connecting slider, one end of the connecting slider is fixedly connected to a positioning clamping plate, and one end of the positioning clamping plate is provided with anti-slip grooves.

[0011] Preferably, the connecting slider is slidably connected to the sliding groove, and the through groove is communicated with the interior of the positioning cylinder.

[0012] Preferably, the positioning clamp is slidably connected to the positioning cylinder, and the connecting plate is slidably connected to the through slot.

[0013] Preferably, a group of positioning screws are fixedly connected to both sides and both ends of the outside of the positioning cylinder, a group of positioning protrusions are fixedly connected to both sides and both ends of the outside of the mounting cylinder, a group of slots are respectively provided on both sides and both ends of one end of the mounting cylinder, a positioning groove is provided at one end of the positioning protrusion, a positioning nut is movably connected to the outside of the positioning screw, and a hexagonal groove is provided at one end of the positioning nut.

[0014] Preferably, the positioning nut is movably connected to the positioning groove, and the slot is slidably connected to the positioning screw.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the milling machine fixture can not only realize the simultaneous control of the movement of multiple sets of fixtures, realize the improvement of the fixture stability to improve the stability after clamping, but also realize the convenience of disassembly and assembly;

[0016] (1) By providing a through slot, a positioning clamp, a connecting slider, a driving motor, a speed reducer, a turntable, an arc-shaped push plate, a connecting plate, a driving slot, a reset spring, a cross plate, a connecting piece, a movable slot and a top plate, the workpiece is first placed between the four sets of positioning clamps during processing, the driving motor is started to drive the turntable to rotate through the speed reducer, the turntable drives the four sets of arc-shaped push plates to move through the driving slot, the arc-shaped push plate drives the connecting slider and the positioning clamp at one end to retract toward the middle through the connecting plate, so that the positioning clamp fits the outside of the workpiece to position it, the driving motor is started to continue to drive the turntable to rotate after processing, and the reset spring can push the arc-shaped push plate out through the top plate to open the positioning clamp to facilitate unloading, thereby realizing that the movement of multiple sets of positioning clamps can be controlled simultaneously to clamp and position the workpiece;

[0017] (2) By providing a slide groove, a through groove, a positioning clamp, an anti-slip groove and a connecting slider, when the workpiece is clamped, the positioning clamp moves and the connecting slider at one end thereof fits inside the slide groove, which can effectively limit the positioning clamp to prevent the positioning clamp from shaking and affecting the clamping stability. In addition, the anti-slip groove at one end of the positioning clamp can increase the friction force after the workpiece is clamped, so as to further improve the stability of the workpiece positioning, thereby achieving the goal of improving the stability of the workpiece clamping;

[0018] (3) By providing a mounting tube, a positioning protrusion, a positioning screw, a positioning nut, a slot, a positioning groove and a hexagonal slot, the positioning tube is inserted into the interior of the mounting tube during installation, and the positioning screw on the outside of the positioning tube is inserted into the slot. The slot is then sleeved on the outside of the positioning screw and is tightened by rotating the slot through the hexagonal slot. The slot and the positioning groove are engaged to position the positioning tube through the positioning screw. When maintenance of the internal components is required, the slot is rotated to remove it from the outside of the positioning screw to facilitate the removal of the positioning tube from the interior of the mounting tube, thereby achieving convenient disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a side structural diagram of the installation tube of the present utility model;

[0021] Figure 3 This is a schematic diagram of the front cross-sectional structure of the turntable of the present invention;

[0022] Figure 4 This is a schematic diagram of the rear cross-plate structure of the present invention.

[0023] In the figure: 1. Positioning cylinder; 2. Mounting cylinder; 3. Slide groove; 4. Through groove; 5. Positioning splint; 6. Anti-slip groove; 7. Positioning convex plate; 8. Positioning screw; 9. Positioning nut; 10. Slot; 11. Fixing plate; 12. Connecting slider; 13. Positioning groove; 14. Driving motor; 15. Reducer; 16. Hexagonal groove; 17. Turntable; 18. Arc push plate; 19. Connecting plate; 20. Driving groove; 21. Reset spring; 22. Cross plate; 23. Connecting piece; 24. Movable groove; 25. Top plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-4 A milling machine fixture includes a positioning cylinder 1, the outer portion of the positioning cylinder 1 is movably connected to a mounting cylinder 2, one end of the mounting cylinder 2 is fixedly connected to a fixing plate 11, the center line of the mounting cylinder 2 and the center line of the positioning cylinder 1 are in the same vertical plane, and the interior of the positioning cylinder 1 is provided with a driving mechanism for controlling the movement of multiple sets of fixtures;

[0026] The driving mechanism includes a turntable 17, which is movably connected to the inside of the mounting cylinder 2. A driving groove 20 is provided at one end of the turntable 17. A group of arc-shaped push plates 18 are movably connected to both sides and ends of the inside of the driving groove 20. A top plate 25 is fixedly connected to one side of the arc-shaped push plate 18. A cross plate 22 is fixedly connected to one end of the inside of the positioning cylinder 1. A group of movable grooves 24 are respectively provided at both ends and both sides of the cross plate 22. A return spring 21 is fixedly connected to one end of the movable groove 24. A connecting piece 23 is fixedly connected to one end of the return spring 21. A reducer 15 is fixedly connected to one end of the fixed plate 11. One end of the reducer 15 is fixedly connected to the driving motor 14.

[0027] The output end of the driving motor 14 is fixedly connected to the input end of the reducer 15. The output end of the reducer 15 passes through the fixing plate 11 and extends to the interior of the mounting tube 2 and is fixedly connected to the turntable 17.

[0028] The top plate 25 extends into the interior of the movable groove 24 and is fixedly connected to the connecting piece 23 , and the top plate 25 is slidably connected to the movable groove 24 ;

[0029] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, during processing, the workpiece is first placed between the four groups of positioning clamps 5, and the drive motor 14 is started to drive the turntable 17 to rotate through the reducer 15. The turntable 17 drives the four groups of arc-shaped push plates 18 to move through the drive slot 20. The arc-shaped push plates 18 drive the connecting slider 12 and the positioning clamps 5 at one end to shrink toward the middle through the connecting plate 19, so that the positioning clamps 5 fit the outside of the workpiece to position it. After processing, the drive motor 14 is started to continue to drive the turntable 17 to rotate. At the same time, the reset spring 21 can push the arc-shaped push plate 18 out through the top plate 25 to open the positioning clamps 5 to facilitate unloading, thereby realizing that multiple groups of positioning clamps 5 can be controlled to move and clamp the workpiece in position at the same time.

[0030] Example 2: A set of slide grooves 3 are respectively provided on both sides and both ends of one end of the positioning cylinder 1. A through groove 4 is provided at one end inside the slide groove 3. One end of the arc-shaped push plate 18 is fixedly connected to a connecting plate 19. The connecting plate 19 passes through the through groove 4 and is fixedly connected to a connecting slider 12. One end of the connecting slider 12 is fixedly connected to a positioning splint 5. One end of the positioning splint 5 is provided with an anti-slip groove 6.

[0031] The connecting slider 12 is slidably connected to the slide groove 3, and the through groove 4 is connected to the interior of the positioning cylinder 1;

[0032] The positioning clamping plate 5 is slidably connected to the positioning cylinder 1, and the connecting plate 19 is slidably connected to the through groove 4;

[0033] Specifically, if Figure 1 and Figure 2 As shown, when the workpiece is clamped, the positioning clamp 5 moves and the connecting slider 12 at one end thereof fits inside the slide groove 3, which can effectively limit the positioning clamp 5 to prevent the positioning clamp 5 from shaking and affecting the clamping stability, and the anti-slip groove 6 opened at one end of the positioning clamp 5 can increase the friction force after the workpiece is clamped, so as to further improve the stability of the workpiece positioning, thereby achieving the goal of improving the stability of the workpiece clamping.

[0034] Example 3: A set of positioning screws 8 are fixedly connected to both sides and ends of the exterior of the positioning cylinder 1, a set of positioning convex plates 7 are fixedly connected to both sides and ends of the exterior of the mounting cylinder 2, a set of slots 10 are respectively opened on both sides and ends of one end of the mounting cylinder 2, a positioning groove 13 is opened at one end of the positioning convex plate 7, a positioning nut 9 is movably connected to the exterior of the positioning screw 8, and a hexagonal slot 16 is opened at one end of the positioning nut 9;

[0035] The positioning nut 9 is movably connected to the positioning groove 13, and the slot 10 is slidably connected to the positioning screw 8;

[0036] Specifically, if Figure 1 and Figure 2 As shown, during installation, the positioning tube 1 is inserted into the interior of the mounting tube 2, and the positioning screw 8 on the outside of the positioning tube 1 is inserted into the slot 10. Then, the slot 10 is sleeved on the outside of the positioning screw 8, and the slot 10 is rotated through the hexagonal slot 16 to tighten it. The slot 10 is engaged with the positioning groove 13 and the positioning tube 1 can be positioned by the positioning screw 8. When maintenance of the internal components is required, the slot 10 is rotated to remove it from the outside of the positioning screw 8 to facilitate the removal of the positioning tube 1 from the inside of the mounting tube 2, so that it can be easily disassembled for maintenance.

[0037] Working principle: When the utility model is in use, the positioning cylinder 1 is inserted into the interior of the installation cylinder 2 during installation, and the positioning screw 8 on the outside of the positioning cylinder 1 is inserted into the interior of the slot 10. Then the slot 10 is sleeved on the outside of the positioning screw 8, and the slot 10 is rotated through the hexagonal slot 16 to tighten it. The slot 10 is engaged with the positioning groove 13 and the positioning cylinder 1 can be positioned by the positioning screw 8. When the internal components need to be maintained, the slot 10 is rotated to remove it from the outside of the positioning screw 8 to facilitate the removal of the positioning cylinder 1 from the inside of the installation cylinder 2. During processing, the workpiece is first placed between the four sets of positioning splints 5, and the drive motor 14 is started to drive the turntable 17 to rotate through the reducer 15. The turntable 17 drives the four sets of arc pushers through the drive slot 20 When the plate 18 moves, the arc-shaped push plate 18 drives the connecting slider 12 and the positioning clamping plate 5 at one end to retract toward the middle through the connecting plate 19, so that the positioning clamping plate 5 fits against the outside of the workpiece to position it. After processing, the drive motor 14 is started to continue to drive the turntable 17 to rotate. At the same time, the reset spring 21 can push the arc-shaped push plate 18 out through the top plate 25 to open the positioning clamping plate 5 to facilitate unloading. When clamping the workpiece, the positioning clamping plate 5 moves while the connecting slider 12 at one end thereof fits against the inside of the slide groove 3, which can effectively limit the positioning clamping plate 5 to prevent the positioning clamping plate 5 from shaking and affecting the clamping stability. The anti-slip groove 6 opened at one end of the positioning clamping plate 5 can increase the friction after clamping the workpiece to further improve the stability of the workpiece positioning.

Claims

1. A milling machine fixture, comprising a positioning cylinder (1), characterized in that: The outside of the positioning cylinder (1) is movably connected to a mounting cylinder (2), one end of the mounting cylinder (2) is fixedly connected to a fixing plate (11), the center line of the mounting cylinder (2) and the center line of the positioning cylinder (1) are on the same vertical plane, and a driving mechanism for controlling the movement of multiple sets of clamps is provided inside the positioning cylinder (1); The driving mechanism comprises a turntable (17), the interior of the mounting cylinder (2) is movably connected to the turntable (17), one end of the turntable (17) is provided with a driving groove (20), both sides and ends of the interior of the driving groove (20) are movably connected to a group of arc-shaped push plates (18), one side of the arc-shaped push plates (18) is fixedly connected to a top plate (25), one end of the interior of the positioning cylinder (1) is fixedly connected to a cross plate (22), both ends and both sides of the cross plate (22) are provided with a group of movable grooves (24), one end of the interior of the movable groove (24) is fixedly connected to a reset spring (21), one end of the reset spring (21) is fixedly connected to a connecting piece (23), one end of the fixed plate (11) is fixedly connected to a reducer (15), and one end of the reducer (15) is fixedly connected to a driving motor (14).

2. A milling machine fixture according to claim 1, characterized in that: The output end of the driving motor (14) is fixedly connected to the input end of the reducer (15), and the output end of the reducer (15) passes through the fixed plate (11) and extends to the interior of the mounting cylinder (2) and is fixedly connected to the turntable (17).

3. The milling machine fixture according to claim 1, characterized in that: The top plate (25) extends to the interior of the movable groove (24) and is fixedly connected to the connecting piece (23), and the top plate (25) is slidably connected to the movable groove (24).

4. The milling machine fixture according to claim 1, characterized in that: A group of slide grooves (3) are respectively provided on both sides and both ends of one end of the positioning cylinder (1), a through groove (4) is provided at one end inside the slide groove (3), one end of the arc-shaped push plate (18) is fixedly connected to a connecting plate (19), the connecting plate (19) passes through the through groove (4) and is fixedly connected to a connecting slider (12), one end of the connecting slider (12) is fixedly connected to a positioning clamping plate (5), and one end of the positioning clamping plate (5) is provided with an anti-slip groove (6).

5. The milling machine fixture according to claim 4, characterized in that: The connecting slide block (12) is slidably connected to the sliding groove (3), and the through groove (4) is communicated with the interior of the positioning cylinder (1).

6. The milling machine fixture according to claim 4, characterized in that: The positioning clamping plate (5) is slidably connected to the positioning cylinder (1), and the connecting plate (19) is slidably connected to the through groove (4).

7. The milling machine fixture according to claim 1, characterized in that: A group of positioning screws (8) are fixedly connected to both sides and both ends of the exterior of the positioning cylinder (1), a group of positioning convex plates (7) are fixedly connected to both sides and both ends of the exterior of the installation cylinder (2), a group of slots (10) are respectively provided on both sides and both ends of one end of the installation cylinder (2), a positioning groove (13) is provided at one end of the positioning convex plate (7), a positioning nut (9) is movably connected to the exterior of the positioning screw (8), and a hexagonal groove (16) is provided at one end of the positioning nut (9).

8. The milling machine fixture according to claim 7, characterized in that: The positioning nut (9) is movably connected to the positioning groove (13), and the slot (10) is slidably connected to the positioning screw (8).

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