Drilling and milling rack with conversion structure

Abstract

The utility model relates to the technical field of drilling and milling machine tools, in particular to a drilling and milling machine frame with a conversion structure, which comprises a machine frame, a first sliding seat and a gun drill guide sleeve are respectively arranged on the machine frame, a gun drill clamp is mounted on the first sliding seat, and a gun drill support frame is arranged between the gun drill guide sleeve and the gun drill clamp; two second sliding seats are arranged on one side of the rack in a sliding mode, positioning units are arranged between the two second sliding seats and the gun drill guide sleeve and between the two second sliding seats and the gun drill supporting frame respectively, each positioning unit comprises a base and a self-centering clamp, the bases are connected to the second sliding seats, at least two mounting holes are formed in the bases, ejector blocks are arranged in the mounting holes in a sliding fit mode, and the self-centering clamps are arranged on the ejector blocks. The base is connected with an air inlet, and one side of the self-centering clamp is connected with a positioning column. During drilling, the positioning column enters the mounting hole, air pressure enters the air inlet to push the ejector block to move to be in contact with the positioning column and limit the position of the positioning column, during milling, the air inlet is closed, the positioning column is separated from the mounting hole, and then quick switching between the machine tool drilling and milling is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and milling machine tools, in particular to a drilling and milling machine frame with a conversion structure. Background Art

[0002] Drilling and milling machines are machine tools that integrate drilling, milling, boring and grinding, and are used for processing small and medium-sized parts.

[0003] At present, machine tools use gun drills of different lengths for drilling and milling respectively. The length of the gun drill used for drilling is longer than that used for milling. During drilling, in order to ensure the overall stability of the gun drill, it is necessary to add a positioning structure to limit the position of the gun drill for drilling. During milling, it is necessary to remove the positioning mechanism to prevent the positioning mechanism from affecting the operation of the milling cutter. The positioning structure is often fixed to the frame by bolts. Such a connection method requires special disassembly tools to operate between the positioning structure and the frame, consumes a lot of time, and is time-consuming and labor-intensive. Therefore, the utility model provides a drilling and milling frame with a conversion structure to solve the above problems. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a drilling and milling frame with a conversion structure to solve the problem that the above-mentioned positioning structure and the frame are connected by bolts, which results in the need for special disassembly tools to operate between the positioning structure and the frame, and consumes a lot of time, resulting in time-consuming and labor-intensive problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A drilling and milling machine frame with a conversion structure includes a frame, a first sliding seat and a gun drill guide sleeve are respectively provided on the frame, a gun drill fixture corresponding to the gun drill guide sleeve is installed on the first sliding seat, a gun drill support frame is provided between the gun drill guide sleeve and the gun drill fixture, a first telescoping device and a second telescoping device are respectively installed on one side of the frame, the first telescoping device and the second telescoping device are arranged along the length direction of the frame, and the gun drill guide sleeve and the gun drill support frame slide on the frame through the first telescoping device and the second telescoping device respectively;

[0007] Two second sliding seats are slidingly provided on one side of the frame, and positioning units are respectively provided between the two second sliding seats and the gun drill guide sleeve and the gun drill support frame to realize the installation and disassembly of the gun drill guide sleeve and the gun drill support frame. The positioning unit includes a base and a self-centering clamp, and the base is fixedly connected to the second sliding seat. At least two mounting holes are opened on the base, and the inner sliding fit of the mounting holes is equipped with a top block, and the base is fixedly connected with an air inlet. The self-centering clamp is fixedly connected to a positioning column corresponding to the mounting hole facing the side of the second sliding seat, and the positioning column enters the mounting hole and drives the top block to move through the air pressure of the air inlet to limit the position of the positioning column.

[0008] Preferably, the base has two air pressure channels, a slide groove is provided between the air pressure channel and the mounting hole, the top block is located in the slide groove, the end of the top block close to the slide groove has an inclined surface, the positioning column has a limit groove, and the top block is used in conjunction with the limit groove.

[0009] Preferably, a limiting block is fixedly connected to the interior of the slide groove, a slideway is provided on the top block, the limiting block is located in the slideway, and an elastic member is provided between the slideway and the limiting block.

[0010] Preferably, a sealing gasket in contact with the slide groove is provided around the top block.

[0011] Preferably, the length of the first telescopic device is greater than that of the second telescopic device, and the first telescopic device and the second telescopic device are respectively connected to two second sliding seats.

[0012] Preferably, a second slide rail is installed on the frame, and the second slide seat is slidably fitted on the second slide rail.

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

[0014] 1. During drilling, the positioning column enters the mounting hole, and the air pressure entering the air inlet pushes the top block to move and contact the positioning column and limit the position of the positioning column. During milling, the air inlet is closed, the positioning column is separated from the mounting hole, and the gun drill guide sleeve and the gun drill support frame are removed, thereby realizing quick installation or disassembly between the base and the self-centering clamp, avoiding the cumbersome installation or disassembly caused by the threaded connection between the base and the self-centering clamp, and thus realizing rapid conversion between machine tool drilling and milling.

[0015] 2. After the drill rod passes through the gun drill guide sleeve and the gun drill support frame is installed on the gun drill fixture, the gun drill guide sleeve can limit the front end position of the drill rod, which can ensure the overall stability of the drill rod. The gun drill support frame can move with the movement of the gun drill, solving the problem of poor drilling accuracy caused by the large centrifugal force generated under high-speed rotation, and avoiding tool breakage caused by poor accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the frame of the utility model.

[0017] Figure 2 This is a schematic structural diagram of the gun drill guide sleeve of the present utility model.

[0018] Figure 3 This is a structural diagram of the drill support frame of the present utility model.

[0019] Figure 4 This is a rear structural schematic diagram of the self-centering clamp of the utility model.

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the base of the utility model.

[0021] In the figure: 1. frame; 2. first sliding seat; 3. gun drill guide sleeve; 4. gun drill support frame; 5. first telescope; 6. second telescope; 7. second sliding seat; 11. first slide rail; 12. second slide rail; 21. gun drill fixture; 72. base; 73. self-centering clamp; 74. air inlet; 721. mounting hole; 722. air pressure channel; 723. slide groove; 724. top block; 725. sealing gasket; 726. limit block; 727. elastic member; 702. slideway; 731. positioning column; 732. limit groove. DETAILED DESCRIPTION

[0022] The following will refer to the attached Figure 1 To the attached Figure 5 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0023] A drilling and milling machine frame with a conversion structure, such as Figures 1 to 5As shown, the machine comprises a frame 1, on which are respectively provided a first sliding seat 2 and a gun drill guide sleeve 3. A gun drill fixture 21 corresponding to the gun drill guide sleeve 3 is mounted on the first sliding seat 2. Specifically, the first sliding seat 2 and the frame 1 are slidably engaged via a ball screw, which is connected to a motor. The frame 1 has a first slide rail 11, on which the first sliding seat 2 slidably engages. The first slide rail 11 can reduce friction between the first sliding seat 2 and the frame 1. A gun drill support frame 4 is disposed between the gun drill guide sleeve 3 and the gun drill fixture 21. Specifically, the gun drill support frame 4 includes a clamping ring and a connecting arm. The clamping ring is fixed to the connecting arm, and the connecting arm is mounted on a self-centering clamp 73. A first telescopic device 5 and a second telescopic device 6 are respectively installed on one side of the frame 1. The first telescopic device 5 and the second telescopic device 6 can both be electric telescopic rods. The first telescopic device 5 and the second telescopic device 6 are arranged along the length direction of the frame 1. The gun drill guide sleeve 3 and the gun drill support frame 4 slide on the frame 1 through the first telescopic device 5 and the second telescopic device 6 respectively. The length of the first telescopic device 5 is greater than the length of the second telescopic device 6. The second telescopic device 6 drives the gun drill support frame 4 to move, so that the gun drill support frame 4 is always located in the middle between the gun drill guide sleeve 3 and the gun drill clamp 21, to prevent the drill rod below 5 mm from bending.

[0024] Specifically, after the drill rod passes through the gun drill guide sleeve 3 and the gun drill support frame 4 is installed on the gun drill fixture 21, the gun drill guide sleeve 3 can limit the front end position of the drill rod, thereby ensuring the overall stability of the drill rod. The gun drill support frame 4 can move with the movement of the gun drill, thereby solving the problem of poor drilling accuracy caused by the large centrifugal force generated under high-speed rotation, and avoiding tool breakage caused by poor drilling accuracy.

[0025] Two second sliding seats 7 are slidingly provided on one side of the frame 1. In detail, a second slide rail 12 is installed on the frame 1, and the second sliding seat 7 slides on the second slide rail 12. The second slide rail 12 can limit the position of the second sliding seat 7 and reduce the friction between the second sliding seat 7 and the frame 1. The first telescope 5 and the second telescope 6 are respectively connected to the two second sliding seats 7. Positioning units are respectively provided between the two second sliding seats 7 and the gun drill guide sleeve 3 and the gun drill support frame 4 to realize quick installation or disassembly of the gun drill guide sleeve 3 and the gun drill support frame 4. The positioning unit includes a base 72 and a self-centering clamp 73. The gun drill guide sleeve 3 and the gun drill support frame 4 are respectively installed on the two self-centering clamps 73. The base 72 is fixedly connected to the second sliding seat 7. Four mounting holes 721 are opened on the base 72. The internal sliding fit of the mounting hole 721 is equipped with a top block 724. The base 72 is fixedly connected with an air inlet 74. The self-centering clamp 73 is fixedly connected to the side of the second sliding seat 7 with a positioning column 731 corresponding to the mounting hole 721.

[0026] Specifically, during drilling, the positioning column 731 enters the mounting hole 721, and the air pressure entering the air inlet 74 pushes the top block 724 to move and contact the positioning column 731 and limit the position of the positioning column 731. During milling, the air inlet 74 is closed, the positioning column 731 is separated from the mounting hole 721, and the gun drill guide sleeve 3 and the gun drill support frame 4 are removed, thereby realizing rapid installation or disassembly between the base 72 and the self-centering clamp 73, avoiding the cumbersome installation or disassembly caused by the threaded connection between the base 72 and the self-centering clamp 73, and thus realizing rapid conversion between machine tool drilling and milling.

[0027] There are two air pressure channels 722 on the base 72, the air pressure channels 722 are connected to the air inlet 74, there is a slide groove 723 between the air pressure channel 722 and the mounting hole 721, the top block 724 is located in the slide groove 723, and the end of the top block 724 close to the slide groove 723 has an inclined surface to ensure that the air pressure can push the top block 724 to move faster. There is a limit groove 732 on the positioning column 731, and the top block 724 is used in conjunction with the limit groove 732.

[0028] A limit block 726 is fixedly connected to the interior of the chute 723. The top block 724 is provided with a chute 702, and the limit block 726 is located within the chute 702. An elastic member 727 is provided between the chute 702 and the limit block 726. The elastic member 727 can be an elastic structure such as a spring or a rubber column. The elastic member 727 can automatically reset after the top block 724 moves. A sealing gasket 725 is provided around the circumference of the top block 724 to contact the chute 723. The sealing gasket 725 prevents air leakage between the top block 724 and the chute 723.

[0029] Specifically, the air pressure of the air inlet 74 enters the air pressure channel 722, and the air pressure in the air pressure channel 722 uses the inclined surface of the top block 724 to push the top block 724 to move. The top block 724 enters the mounting hole 721 and is located in the limit groove 732 on the positioning column 731, thereby fixing the position of the self-centering clamp 73.

[0030] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A drilling and milling machine frame with a conversion structure, comprising a frame (1), wherein a first sliding seat (2) and a gun drill guide sleeve (3) are respectively provided on the frame (1), and a gun drill fixture (21) corresponding to the gun drill guide sleeve (3) is installed on the first sliding seat (2), characterized in that: A gun drill support frame (4) is provided between the gun drill guide sleeve (3) and the gun drill fixture (21), and a first telescopic device (5) and a second telescopic device (6) are respectively installed on one side of the frame (1), wherein the first telescopic device (5) and the second telescopic device (6) are provided along the length direction of the frame (1), and the gun drill guide sleeve (3) and the gun drill support frame (4) slide on the frame (1) through the first telescopic device (5) and the second telescopic device (6) respectively; Two second sliding seats (7) are slidably provided on one side of the frame (1), and positioning units are provided between the two second sliding seats (7) and the gun drill guide sleeve (3) and the gun drill support frame (4) respectively, so as to realize the installation and disassembly of the gun drill guide sleeve (3) and the gun drill support frame (4), and the positioning unit includes a base (72) and a self-centering clamp (73), and the base (72) is fixedly connected to the second sliding seat (7), and the base (72) is provided with at least two mounting holes ( 721), the interior of the mounting hole (721) is slidably fitted with a top block (724), the base (72) is fixedly connected with an air inlet (74), the self-centering clamp (73) is fixedly connected with a positioning column (731) corresponding to the mounting hole (721) on one side facing the second sliding seat (7), and the positioning column (731) enters the mounting hole (721) and passes through the air inlet (74) to drive the top block (724) to move to limit the position of the positioning column (731).

2. The drilling and milling machine frame with a conversion structure according to claim 1, characterized in that: The base (72) has two air pressure channels (722), a slide groove (723) is provided between the air pressure channel (722) and the mounting hole (721), the top block (724) is located in the slide groove (723), and one end of the top block (724) close to the slide groove (723) has an inclined surface, the positioning column (731) has a limiting groove (732), and the top block (724) is used in conjunction with the limiting groove (732).

3. The drilling and milling machine frame with a conversion structure according to claim 2, characterized in that: The interior of the slide groove (723) is fixedly connected to a limiting block (726); a slideway (702) is provided on the top block (724); the limiting block (726) is located in the slideway (702); and an elastic member (727) is provided between the slideway (702) and the limiting block (726).

4. The drilling and milling machine frame with a conversion structure according to claim 2, characterized in that: A sealing gasket (725) in contact with the slide groove (723) is provided on the circumference of the top block (724).

5. The drilling and milling machine frame with a conversion structure according to claim 1, characterized in that: The length of the first telescopic device (5) is greater than that of the second telescopic device (6), and the first telescopic device (5) and the second telescopic device (6) are respectively connected to two second sliding seats (7).

6. The drilling and milling machine frame with a conversion structure according to claim 1, characterized in that: A second slide rail (12) is installed on the frame (1), and the second slide seat (7) is slidably fitted on the second slide rail (12).

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