Milling jig convenient to operate

Abstract

The utility model discloses a milling machine fixture convenient to operate, which comprises a bottom plate fixed on a milling machine, the upper surface of the bottom plate is rotatably connected with a shell, the upper surface of the bottom plate is provided with a locking assembly to fix the shell, the top of the shell is provided with a plurality of sliding chutes, the interiors of the plurality of sliding chutes are all connected with clamping frames in a sliding manner, and the clamping frames are arranged on the bottom plate. Threaded holes are formed in one sides of the clamping frames, second threaded rods are in threaded connection with the interiors of the threaded holes, and protrusions are integrally formed on the inner wall of the top of the shell. According to the clamp, irregular workpieces can be stably clamped, the workpieces are prevented from falling off, a worker can conveniently operate the clamp, the use efficiency of the clamp is improved, the angle of the workpieces can be adjusted, therefore, the workpieces can be conveniently machined, the use convenience of the clamp is improved, and the work efficiency of the clamp is improved. And the surface of the workpiece can be prevented from being damaged by the clamping frame, and the workpiece clamping safety of the clamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling machines, in particular to a milling machine fixture which is easy to operate. Background Art

[0002] A milling machine mainly refers to a machine tool that uses a milling cutter to process various surfaces of a workpiece. A fixture is required on the milling machine to clamp and fix the workpiece.

[0003] After searching, the Chinese patent with publication number CN216706805U discloses a milling machine fixture that is easy to operate and use, including a base, a column fixedly installed on the top of the base, and a workpiece table fixedly installed on the top of the column, so that multiple arc-shaped clamps are synchronously moved toward the annular workpiece, so that the multiple arc-shaped clamps clamp the annular workpiece. However, there is still the following defect: when encountering an irregular workpiece, its clamping is unstable, causing the workpiece to fall off easily during processing. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a milling machine fixture which is easy to operate.

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

[0006] 14. The invention relates to a milling machine fixture which is easy to operate and comprises a base plate fixed on the milling machine, the upper surface of the base plate being rotatably connected to a shell, the upper surface of the base plate being provided with a locking assembly so that the shell is fixed, a plurality of slide grooves being provided on the top of the shell, a clamping frame being slidably connected in the plurality of slide grooves, a threaded hole being provided on one side of the clamping frame, a second threaded rod being threadedly connected in the threaded hole, a protrusion being integrally formed on the top inner wall of the shell, and the second threaded rod being rotatably connected to the protrusion, a gear being rotatably connected to a circumferential outer wall of the second threaded rod at a position away from the protrusion, an elliptical groove being provided on one end of the second threaded rod away from the protrusion, an elliptical rod being slidably connected in the elliptical groove, a connecting plate being fixedly connected to one side of the connecting plate with two wedge-shaped blocks, two slots being provided on one side of the gear, and the wedge-shaped block being plugged into the slot, a tension spring being sleeved on the circumferential outer wall of the elliptical rod, and two ends of the tension spring being respectively fixed to the connecting plate and the second threaded rod, and a driving assembly for rotating the second threaded rod being provided on the bottom inner wall of the shell.

[0007] As a further solution of the utility model, the driving assembly includes a motor, the motor is fixedly connected to the bottom inner wall of the shell, one end of the motor output shaft is keyed to a toothed disc, and the toothed disc is meshed with the gear.

[0008] As a further solution of the utility model, the locking assembly includes a protrusion, which is fixedly connected to the upper surface of the base plate, and one side of the protrusion is fixedly connected to a U-shaped plate, one side of the U-shaped plate is provided with a threaded groove, and a first threaded rod is threadedly connected in the threaded groove, and one end of the first threaded rod is rotatably connected to an insertion rod, and the circumferential outer wall of the shell is provided with a plurality of grooves, and the insertion rod passes through the protrusion and is inserted into the groove.

[0009] As a further solution of the utility model, the plurality of grooves are evenly distributed in an annular shape along the circumferential outer wall of the shell.

[0010] As a further solution of the present invention, the other end of the first threaded rod is fixedly connected with a knob for rotating the first threaded rod.

[0011] As a further solution of the utility model, a plurality of heat dissipation holes connected to the interior of the shell are opened on the circumferential outer walls of the shells.

[0012] As a further solution of the utility model, a rubber pad is fixedly connected to one side of the clamping frame, and the rubber pad has the same specifications as the clamping frame.

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

[0014] 1. Through the coordinated use of connecting plates and gears, irregular workpieces can be stably clamped through multiple clamps to prevent the workpieces from falling off. At the same time, multiple clamps can be moved synchronously, which is convenient for workers to operate and clamp, thereby improving the use effect of the clamp.

[0015] 2. Through the setting of the rotating shell, after the clamping frame clamps the workpiece, the angle of the workpiece can be adjusted by rotating the shell, thereby facilitating the processing of the workpiece and improving the convenience of using the fixture.

[0016] 3. By setting the rubber pad, when the clamp is clamping the workpiece, the rubber pad can prevent the clamp from causing damage to the surface of the workpiece, thereby improving the safety of the clamp clamping the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural schematic diagram of a milling machine fixture that is easy to operate proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional structural diagram of a housing of a milling machine fixture that is easy to operate, as proposed by the utility model;

[0019] Figure 3 The utility model provides an enlarged structural diagram of the A part of a milling machine fixture which is easy to operate.

[0020] In the figure: 1, shell; 2, bottom plate; 3, protrusion; 4, U-shaped plate; 5, first threaded rod; 6, plug rod; 7, groove; 8, slide groove; 9, second threaded rod; 10, clamping frame; 12, toothed disc; 13, tension spring; 14, elliptical rod; 15, connecting plate; 16, wedge block; 17, slot; 18, gear. DETAILED DESCRIPTION

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of the application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0022] Reference Figure 1-Figure 3A milling machine fixture that is easy to operate includes a base plate 2 fixed on the milling machine, a shell 1 is rotatably connected to the upper surface of the base plate 2, a locking assembly is provided on the upper surface of the base plate 2 to fix the shell 1, a plurality of slide grooves 8 are provided on the top of the shell 1, a clamping frame 10 is slidably connected in each of the plurality of slide grooves 8, a threaded hole is provided on one side of the clamping frame 10, a second threaded rod 9 is threadedly connected in the threaded hole, a protrusion is integrally formed on the top inner wall of the shell 1, and the second threaded rod 9 is rotatably connected to the protrusion, and the circumferential outer wall of the second threaded rod 9 is rotatably connected to the position away from the protrusion The second threaded rod 9 has a gear 18, an elliptical groove is provided at one end away from the protrusion, an elliptical rod 14 is slidably connected in the elliptical groove, a connecting plate 15 is welded at one end of the elliptical rod 14, two wedge-shaped blocks 16 are welded on one side of the connecting plate 15, two slots 17 are provided on one side of the gear 18, and the wedge-shaped blocks 16 are plugged into the slots 17, a tension spring 13 is sleeved on the circumferential outer wall of the elliptical rod 14, and the two ends of the tension spring 13 are respectively fixed to the connecting plate 15 and the second threaded rod 9, a driving assembly is provided on the bottom inner wall of the housing 1 to rotate the gear 18, and the driving assembly is driven by the driving assembly. The driving assembly drives the gear 18 to rotate. At this time, since the tension spring 13 pulls the connecting plate 15, the gear 18 will drive the connecting plate 15 to rotate through the wedge block 16. The connecting plate 15 will drive the second threaded rod 9 to rotate along the gear 18 through the elliptical rod 14. The second threaded rod 9 will drive the clamping frame 10 to move along the slide groove 8 through the threaded engagement with the clamping frame 10. When one or more of the clamping frames 10 are in contact with the workpiece and the remaining clamping frames 10 have not yet contacted the workpiece, the toothed disc 12 will continue to drive the gear 18 to rotate, and the clamping frames in contact with the workpiece will rotate. 10 cannot move. At this time, due to the threaded engagement of the second threaded rod 9 with the clamping frame 10, the second threaded rod 9 cannot rotate, and the gear 18 will push the wedge block 16 to move through the inclined surface of the wedge block 16 during the rotation process, so that the wedge block 16 is disengaged from the slot 17, and the wedge block 16 will push the connecting plate 15 to move, and the connecting plate 15 will stretch the tension spring 13, so that the gear 18 will rotate by itself, so as not to affect the movement of the other clamping frames 10 that are not in contact with the workpiece, so that non-standard workpieces can be clamped to prevent the workpiece from falling off.

[0023] The drive assembly includes a motor, which is fixed to the bottom inner wall of the housing 1 by bolts. One end of the motor output shaft is keyed to a toothed disc 12, and the toothed disc 12 is meshed with a gear 18. The motor drives the toothed disc 12 to rotate, and the toothed disc 12 drives the gear 18 to rotate by meshing with the gear 18.

[0024] In the utility model, in order to prevent the shell 1 from rotating easily, the locking assembly includes a protrusion 3, which is welded to the upper surface of the bottom plate 2. A U-shaped plate 4 is fixed to one side of the protrusion 3 by bolts. A threaded groove is provided on one side of the U-shaped plate 4. A first threaded rod 5 is threadedly connected to the threaded groove. An insertion rod 6 is rotatably connected to one end of the first threaded rod 5. A plurality of grooves 7 are provided on the circumferential outer wall of the shell 1, and the insertion rod 6 passes through the protrusion 3 and is plugged into the groove 7. When the first threaded rod 5 is rotated, the first threaded rod 5 moves by engaging with the thread of the threaded groove, and the first threaded rod 5 drives the insertion rod 6 to move. The first threaded rod 5 is welded with a knob for rotating the first threaded rod 5 at the other end. The circumferential outer wall of the multiple shells 1 is provided with a plurality of heat dissipation holes connected with the interior of the shell 1. The heat dissipation holes can dissipate the heat generated when the motor is working to prevent the motor from malfunctioning due to excessive temperature. A rubber pad is bonded to one side of the clamp 10, and the rubber pad is equal to the specifications of the clamp 10. The rubber pad can prevent the clamp 10 from causing damage to the surface of the workpiece.

[0025] Working principle: when it is needed, the workpiece is placed on the top of the housing 1, and then the motor drives the toothed disc 12 to rotate, and the toothed disc 12 drives the gear 18 to rotate by meshing with the gear 18. At this time, since the tension spring 13 pulls the connecting plate 15, the gear 18 drives the connecting plate 15 to rotate through the wedge block 16, and the connecting plate 15 drives the second threaded rod 9 to rotate following the gear 18 through the elliptical rod 14. The second threaded rod 9 drives the clamping frame 10 to move along the slide groove 8 by meshing with the thread of the clamping frame 10. When one or more of the clamping frames 10 are in contact with the workpiece and the remaining clamping frames 10 have not yet contacted the workpiece, the toothed disc 12 will continue to drive the gear 18 to rotate, and the ones in contact with the workpiece The clamping frame 10 that is in contact with the workpiece cannot move. At this time, since the second threaded rod 9 is engaged with the thread of the clamping frame 10, the second threaded rod 9 cannot rotate, and the gear 18 will push the wedge block 16 to move through the inclined surface of the wedge block 16 during the rotation process, so that the wedge block 16 is disengaged from the slot 17, and the wedge block 16 will push the connecting plate 15 to move, and the connecting plate 15 will stretch the tension spring 13, so that the gear 18 will rotate by itself, so as not to affect the movement of the remaining clamping frames 10 that are not in contact with the workpiece, so that non-standard workpieces can be clamped to prevent the workpiece from falling off, and at the same time, multiple clamping frames 10 can be moved synchronously, which is convenient for the staff to operate for clamping and improves the use effect of the clamp.

[0026] The present invention has been described through the above-mentioned embodiments. Those skilled in the art will appreciate that the present invention is not limited to the above-mentioned embodiments, and more modifications may be made according to the teachings of the present invention. These modifications are all within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A convenient-to-operate milling machine fixture, comprising a base plate (2) fixed on the milling machine, characterized in that: The upper surface of the base plate (2) is rotatably connected to the shell (1), and the upper surface of the base plate (2) is provided with a locking assembly to fix the shell (1). The top of the shell (1) is provided with a plurality of slide grooves (8), and a clamping frame (10) is slidably connected in each of the plurality of slide grooves (8). A threaded hole is provided on one side of the clamping frame (10), and a second threaded rod (9) is threadedly connected in the threaded hole. A protrusion is integrally formed on the inner wall of the top of the shell (1), and the second threaded rod (9) is rotatably connected to the protrusion. A gear (18) is rotatably connected to the circumferential outer wall of the second threaded rod (9) at a position away from the protrusion. The second threaded rod (9) ) is provided with an elliptical groove at one end away from the protrusion, an elliptical rod (14) is slidably connected in the elliptical groove, one end of the elliptical rod (14) is fixedly connected to a connecting plate (15), one side of the connecting plate (15) is fixedly connected to two wedge blocks (16), one side of the gear (18) is provided with two slots (17), and the wedge blocks (16) are plugged into the slots (17), the circumferential outer wall of the elliptical rod (14) is sleeved with a tension spring (13), and the two ends of the tension spring (13) are respectively fixed to the connecting plate (15) and the second threaded rod (9), and the bottom inner wall of the shell (1) is provided with a driving component for rotating the second threaded rod (9).

2. The easy-to-operate milling machine fixture according to claim 1, characterized in that: The driving assembly comprises a motor, which is fixedly connected to the bottom inner wall of the housing (1); one end of the motor output shaft is keyed to a toothed disc (12), and the toothed disc (12) is meshed with a gear (18).

3. The easy-to-operate milling machine fixture according to claim 1, characterized in that: The locking assembly comprises a protrusion (3), wherein the protrusion (3) is fixedly connected to the upper surface of the bottom plate (2); a U-shaped plate (4) is fixedly connected to one side of the protrusion (3); a thread groove is provided on one side of the U-shaped plate (4); a first threaded rod (5) is threadedly connected in the thread groove; an insertion rod (6) is rotatably connected to one end of the first threaded rod (5); a plurality of grooves (7) are provided on the circumferential outer wall of the housing (1), and the insertion rod (6) passes through the protrusion (3) and is inserted into the groove (7).

4. The easy-to-operate milling machine fixture according to claim 3, characterized in that: The plurality of grooves (7) are evenly distributed in an annular shape along the circumferential outer wall of the housing (1).

5. The easy-to-operate milling machine fixture according to claim 3, characterized in that: The other end of the first threaded rod (5) is fixedly connected with a knob for rotating the first threaded rod (5).

6. The easy-to-operate milling machine fixture according to claim 3, characterized in that: A plurality of heat dissipation holes connected to the interior of the shell (1) are provided on the circumferential outer walls of the shells (1).

7. The easy-to-operate milling machine fixture according to claim 1, characterized in that: A rubber pad is fixedly connected to one side of the clamping frame (10), and the rubber pad has the same specifications as the clamping frame (10).

Images