Positioning mechanism for end face milling machine

Abstract

The positioning mechanism for the end face milling machine comprises a milling machine table, a portal frame is fixedly arranged on the upper surface of the milling machine table, a guide installation frame is fixedly connected to the upper surface of the portal frame, and a movable limiting mechanism is arranged in the guide installation frame. The movable limiting mechanism comprises two limiting battens fixedly connected to the inner wall of the guide mounting frame, inverted-L-shaped limiting plates are arranged on the surfaces of the limiting battens in a sliding mode, and a movable mounting base is fixedly connected between the two limiting plates. According to the utility model, the movable limiting mechanism is arranged above the milling machine table, so that the top of a workpiece can be pressed and limited downwards by utilizing a limiting support pillar of the movable limiting mechanism when the workpiece is processed and limited, and the workpiece is kept stable on the surface of the supporting assembly; and the limiting jacking columns can move along with the workpiece in the horizontal movement process of the supporting assembly, the movement limiting effect is achieved, and the stability of the milling machine in the machining process of the end faces of the two sides of the workpiece is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to a positioning mechanism for an end milling machine. Background Art

[0002] The face milling machine is a milling machine for processing vertical planes. It has a large processing range and is suitable for the end face cutting of metal materials such as castings and steel parts. It is widely used in the machinery manufacturing industry, especially in the mold industry and plane milling of plastic mold frame frames. It can perform milling, drilling, boring and other special surface processing on the two end faces of extra-long workpieces.

[0003] For example, the patent document with patent publication number CN210451114U discloses a positioning device for an end milling machine, including an end face, a frame, a milling cutter, a worktable and a base. A structure for positioning the side of a workpiece is arranged on the surface of the milling machine workpiece, which results in that each time the end face of the workpiece is changed, the positioning structure needs to be manually operated to adjust the positioning direction of the workpiece, and the side end face cannot be processed while the workpiece is limited. Therefore, it is necessary to improve the shortcomings of the above positioning device when it is used. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning mechanism for an end milling machine to solve the problems raised in the above-mentioned background technology.

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

[0006] A positioning mechanism for an end milling machine comprises a milling machine table, a gantry is fixedly arranged on the upper surface of the milling machine table, a guide mounting frame is fixedly connected to the upper surface of the gantry, a movable limiting mechanism is arranged inside the guide mounting frame, the movable limiting mechanism comprises two limiting strips fixedly connected to the inner wall of the guide mounting frame, a limiting plate in an inverted L shape is slidably arranged on the surface of the limiting strips, a movable mounting seat is fixedly connected between the two limiting plates, the lower surface of the movable mounting seat extends to the inside of the gantry, and an electric push rod is fixedly arranged on the lower surface of the movable mounting seat, a fixed sleeve is fixedly arranged on the telescopic end of the electric push rod, a limiting top column is inserted and installed on the inner wall of the fixed sleeve, and a guide pulley is installed on the upper surface of the movable mounting seat;

[0007] A rectangular guide hole is provided on the upper surface of the milling machine table, a support assembly is slidably provided on the inner wall of the rectangular guide hole, the support assembly includes a fixed bottom shell, a rotating support plate is rotatably provided on the upper surface of the fixed bottom shell, and the position of the movable limiting mechanism corresponds to the support assembly.

[0008] Preferably, the support assembly further comprises a movable screw rod rotatably connected to the inner wall of the rectangular guide hole, a movable block is threadedly connected to the surface of the movable screw rod, and an upper surface of the movable block is fixedly connected to the bottom surface of the fixed bottom shell.

[0009] Preferably, a mounting groove is opened inside the fixed bottom shell, an adjusting motor is arranged inside the mounting groove, a movable column is fixedly installed on the output shaft of the adjusting motor, the top end of the movable column extends to the outside of the mounting groove and is fixedly connected to the bottom surface of the rotating support plate.

[0010] Preferably, a plurality of rubber anti-skid pads are fixedly disposed on the upper surface of the rotating support plate, and the plurality of rubber anti-skid pads are evenly distributed on the upper surface of the rotating support plate in a ring shape.

[0011] Preferably, a movable motor is disposed inside the milling machine table, and an output shaft of the movable motor extends to the inside of the rectangular guide hole and is fixedly connected to the end of the movable screw rod.

[0012] Preferably, two limiting rods are fixedly connected to the surface of the limiting top column, and a positioning groove is formed on the inner wall of the fixing sleeve, and the positioning groove matches the limiting rod.

[0013] Preferably, a guide slot is formed on the inner top wall of the guide installation frame, and the guide pulley is slidably connected to the inner wall of the guide slot.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model is provided with a movable limiting mechanism above the milling machine table. When limiting the processing of the workpiece, the limiting top column of the movable limiting mechanism can be used to press and limit the top of the workpiece downward, so that the workpiece can be kept stable on the surface of the supporting component, and the limiting top column can move with the workpiece during the horizontal movement of the supporting component, thereby achieving the effect of movable limiting, and further improving the stability of the milling machine during the processing of the end faces on both sides of the workpiece.

[0016] 2. The utility model provides a fixing sleeve and a limiting top column, and a limiting rod is provided on the surface of the limiting top column. The limiting top column can be inserted into the fixing sleeve, and the limiting rod is used to enter the positioning groove on the inner wall of the fixing sleeve, thereby limiting and preventing the limiting top column from falling off, and making it convenient for the staff to install and replace the limiting top column. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional front view structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the mobile limiting mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the installation structure of the limiting top column and the fixing sleeve of the utility model;

[0020] Figure 4 It is a schematic diagram of the front cross-section structure of the fixed bottom shell of the utility model;

[0021] Figure 5 It is a schematic diagram of the partial side section structure of the rectangular guide hole of the utility model.

[0022] In the figure: 1. milling machine table; 2. gantry; 3. guide mounting frame; 4. limit strip; 5. limit plate; 6. mobile mounting seat; 7. electric push rod; 8. fixed sleeve; 9. limit top column; 10. guide pulley; 11. rectangular guide hole; 12. fixed bottom shell; 13. rotating support plate; 14. moving screw rod; 15. moving block; 16. adjusting motor; 17. movable column; 18. rubber anti-skid pad; 19. mobile motor; 20. limit rod; 21. guide slide. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-5 A positioning mechanism for an end milling machine comprises a milling machine table 1, a gantry 2 is fixedly arranged on the upper surface of the milling machine table 1, a guide mounting frame 3 is fixedly connected to the upper surface of the gantry 2, and a movable limiting mechanism is arranged inside the guide mounting frame 3.

[0026] The movable limiting mechanism includes two limiting strips 4 fixedly connected to the inner wall of the guide mounting frame 3, and the surface of the limiting strips 4 is slidably provided with an inverted L-shaped limiting plate 5, a movable mounting seat 6 is fixedly connected between the two limiting plates 5, and a guide pulley 10 is installed on the upper surface of the movable mounting seat 6. A guide groove 21 is provided on the inner top wall of the guide mounting frame 3, and the guide pulley 10 is slidably connected to the inner wall of the guide groove 21.

[0027] It is worth mentioning that by providing a guide pulley 10 on the top of the movable mounting seat 6, when the movable limiting mechanism is limiting the workpiece downward, the guide pulley 10 is used to form a reaction force on the guide mounting frame 3 upward, which helps to keep the movable limiting mechanism in a stable working process, and the guide pulley 10 can improve the smoothness of the movable mounting seat 6 during movement.

[0028] The lower surface of the movable mounting seat 6 extends to the interior of the gantry 2, and an electric push rod 7 is fixedly installed on the lower surface of the movable mounting seat 6. The upper surface of the gantry 2 is provided with a long strip-shaped guide hole, and the movable mounting seat 6 is slidably connected to the inner wall of the guide hole.

[0029] The telescopic end of the electric push rod 7 is fixedly provided with a fixing sleeve 8, the inner wall of the fixing sleeve 8 is inserted with a limiting top column 9, the surface of the limiting top column 9 is fixedly connected to two limiting rods 20, and the inner wall of the fixing sleeve 8 is provided with a positioning groove, which matches the limiting rod 20.

[0030] It is worth mentioning that by setting the fixing sleeve 8 and the limiting top column 9, and setting the limiting rod 20 on the surface of the limiting top column 9, when the staff needs to use the limiting top column 9, first insert the limiting top column 9 into the fixing sleeve 8, and use the limiting rod 20 to enter the positioning groove on the inner wall of the fixing sleeve 8, which effectively prevents the limiting top column 9 from falling off and facilitates the staff to install and replace the limiting top column.

[0031] A rectangular guide hole 11 is provided on the upper surface of the milling machine table 1, and a support assembly is slidably provided on the inner wall of the rectangular guide hole 11. The support assembly includes a fixed bottom shell 12, and a rotating support disk 13 is rotatably provided on the upper surface of the fixed bottom shell 12. A plurality of rubber anti-skid pads 18 are fixedly provided on the upper surface of the rotating support disk 13, and the plurality of rubber anti-skid pads 18 are evenly distributed in a ring shape on the upper surface of the rotating support disk 13.

[0032] The position of the movable limiting mechanism corresponds to the supporting assembly. A mounting groove is opened inside the fixed bottom shell 12, and an adjusting motor 16 is arranged inside the mounting groove. A movable column 17 is fixedly installed on the output shaft of the adjusting motor 16. The top end of the movable column 17 extends to the outside of the mounting groove and is fixedly connected to the bottom surface of the rotating support plate 13.

[0033] By setting the adjustment motor 16, when the limiting top column 9 is separated from the upper surface of the workpiece, the adjustment motor 16 can be used to drive the rotating support plate 13 to rotate, so as to adjust the workpiece to different horizontal rotation angles, thereby facilitating the processing of different positions on the workpiece surface.

[0034] It is worth mentioning that, by providing a movable limiting mechanism on the surface of the gantry 2 above the milling machine table 1, when the workpiece is limited in processing, the workpiece is first placed on the surface of the rotating support disk 13, and then the electric push rod 7 is started to drive the limiting top column 9 to press downward on the surface of the workpiece, so that the bottom of the workpiece is pressed against the surface of the rotating support disk 13, and then the moving motor 19 is started to drive the fixed bottom shell 12 to move in the rectangular guide hole 11, thereby driving the workpiece to move horizontally on the surface of the milling machine table 1, so as to facilitate the processing of the end faces on both sides of the workpiece.

[0035] The supporting assembly also includes a moving screw rod 14 rotatably connected to the inner wall of the rectangular guide hole 11 , a moving block 15 is threadedly connected to the surface of the moving screw rod 14 , and the upper surface of the moving block 15 is fixedly connected to the bottom surface of the fixed bottom shell 12 .

[0036] A moving motor 19 is disposed inside the milling machine table 1 . The output shaft of the moving motor 19 extends into the inside of the rectangular guide hole 11 and is fixedly connected to the end of the moving lead screw 14 .

[0037] The above 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 substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning mechanism for an end milling machine, comprising a milling machine table (1), characterized in that: A gantry (2) is fixedly arranged on the upper surface of the milling machine table (1), a guide mounting frame (3) is fixedly connected to the upper surface of the gantry (2), a movable limiting mechanism is arranged inside the guide mounting frame (3), the movable limiting mechanism comprises two limiting strips (4) fixedly connected to the inner wall of the guide mounting frame (3), a limiting plate (5) in an inverted L shape is slidably arranged on the surface of the limiting strips (4), a movable mounting seat (6) is fixedly connected between the two limiting plates (5), the lower surface of the movable mounting seat (6) extends to the inside of the gantry (2), and an electric push rod (7) is fixedly arranged on the lower surface of the movable mounting seat (6), a fixed sleeve (8) is fixedly arranged at the telescopic end of the electric push rod (7), a limiting top column (9) is inserted and installed on the inner wall of the fixing sleeve (8), and a guide pulley (10) is installed on the upper surface of the movable mounting seat (6); A rectangular guide hole (11) is provided on the upper surface of the milling machine table (1), a support assembly is slidably provided on the inner wall of the rectangular guide hole (11), the support assembly comprises a fixed bottom shell (12), a rotating support plate (13) is rotatably provided on the upper surface of the fixed bottom shell (12), and the position of the movable limiting mechanism corresponds to the support assembly.

2. The positioning mechanism for an end milling machine according to claim 1, characterized in that: The support assembly also includes a movable screw rod (14) rotatably connected to the inner wall of the rectangular guide hole (11); a movable block (15) is threadedly connected to the surface of the movable screw rod (14); and an upper surface of the movable block (15) is fixedly connected to the bottom surface of the fixed bottom shell (12).

3. The positioning mechanism for an end milling machine according to claim 1, characterized in that: The fixed bottom shell (12) is provided with a mounting groove inside, an adjusting motor (16) is arranged inside the mounting groove, a movable column (17) is fixedly mounted on the output shaft of the adjusting motor (16), the top end of the movable column (17) extends to the outside of the mounting groove and is fixedly connected to the bottom surface of the rotating support plate (13).

4. The positioning mechanism for an end milling machine according to claim 1, characterized in that: A plurality of rubber anti-skid pads (18) are fixedly arranged on the upper surface of the rotating support plate (13); the plurality of rubber anti-skid pads (18) are evenly distributed in a ring shape on the upper surface of the rotating support plate (13).

5. The positioning mechanism for an end milling machine according to claim 1, characterized in that: A moving motor (19) is arranged inside the milling machine table (1), and an output shaft of the moving motor (19) extends into the interior of the rectangular guide hole (11) and is fixedly connected to the end of the moving lead screw (14).

6. The positioning mechanism for an end milling machine according to claim 1, characterized in that: Two limiting rods (20) are fixedly connected to the surface of the limiting top column (9), and a positioning groove is provided on the inner wall of the fixing sleeve (8), and the positioning groove matches the limiting rod (20).

7. The positioning mechanism for an end milling machine according to claim 1, characterized in that: The inner top wall of the guide installation frame (3) is provided with a guide slot (21), and the guide pulley (10) is slidably connected to the inner wall of the guide slot (21).

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