Flange blind plate outer circle chamfering milling machine

Abstract

The utility model discloses a milling machine for chamfering an outer circle of a blind flange, relates to the technical field of blind flange machining, and solves the technical problems in the prior art that the clamping is frequent and the two sides of the blind flange are inconvenient to synchronously machine in the machining process of chamfering the outer circle of the blind flange. Comprising a machine body, a rotating disc and a motor, the rotating disc is rotationally installed at the top of the machine body, the motor is located in the machine body and used for driving the rotating disc to rotate, four supporting pieces distributed in a cross shape are installed at the top of the rotating disc and used for supporting a blind flange body, and each supporting piece comprises a limiting pin and a supporting ring; the outer side wall of the limiting pin is fixedly sleeved with the supporting ring, and a positioning mechanism used for pressing the blind flange body is installed at the top of the machine body. According to the utility model, the flange blind plate does not need to be frequently clamped in the excircle chamfering processing process, and the two sides of the flange blind plate can be conveniently and synchronously subjected to excircle chamfering processing, so that the processing efficiency is favorably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flange blind plate processing, and particularly relates to a milling machine for chamfering the outer circle of a flange blind plate. Background Art

[0002] After the flange blind plate is processed, the outer circle edge may be very sharp, which increases the risk of workers being scratched during operation. By chamfering the outer circle with a milling machine, these sharp edges can be eliminated, thereby reducing the possibility of workers being injured.

[0003] During the process of chamfering the outer circle of the flange blind plate, it is usually placed on the chuck of the milling machine, and the positions of multiple jaws are adjusted to achieve clamping and limiting. Then, the milling cutter is controlled to contact the outer circle side wall at the top of the flange blind plate, and the chuck is driven to rotate to chamfer one side of the flange blind plate. Subsequently, the flange blind plate after one side is processed needs to be turned over to process the other side. This method not only requires frequent adjustment of the jaws on the chuck to clamp the flange blind plate, but also the outer circle chamfering of the flange blind plate is carried out in two times, thus greatly affecting the processing efficiency of the flange blind plate. Content of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a milling machine for chamfering the outer circle of a flange blind plate, which solves the problems of frequent clamping and inconvenience in synchronously processing both sides during the outer circle chamfering process of the flange blind plate in the prior art.

[0005] To achieve the above object, according to an embodiment of the first aspect of the utility model, a milling machine for chamfering the outer circle of a flange blind plate is provided, which includes a machine body, a turntable and a motor. The turntable is rotatably installed on the top of the machine body, and the motor is located inside the machine body and used to drive the turntable to rotate. Four support members distributed in a "cross" shape are installed on the top of the turntable, and the support members are used to support the flange blind plate body. The support member includes a limit pin and a retaining ring. The limit pin is installed on the turntable, and the retaining ring is fixedly sleeved on the outer side wall of the limit pin. A positioning mechanism for pressing the flange blind plate body is installed on the top of the machine body. A feedable tool rest is provided on the top of the machine body, and a milling cutter corresponding to the flange blind plate body is installed on the tool rest. A V-shaped cutting edge is provided on the side of the milling cutter close to the flange blind plate body.

[0006] As a further technical solution of the utility model, the positioning mechanism includes a fixing plate installed on the top of the machine body. The fixing plate has a "7"-shaped structure, and a first cylinder is installed on the top of the fixing plate. The piston rod of the first cylinder is connected to a pressure plate located directly above the turntable.

[0007] As a further technical solution of the present utility model, a screw rod is connected to the top of the milling cutter through a bearing seat. The screw rod is in threaded connection with the top end of the tool holder. A guiding groove is formed on one side of the tool holder close to the milling cutter, and a sliding block sliding along the guiding groove is installed on the side wall of the milling cutter.

[0008] As a further technical solution of the present utility model, a plurality of uniformly distributed ball grooves are formed on one side of the pressing disc close to the turntable, and balls are installed in the ball grooves, and part of the balls extends outside the ball grooves.

[0009] As a further technical solution of the present utility model, a mounting plate is fixedly connected to the top of the machine body, and a second air cylinder for driving the tool holder to feed is connected to the mounting plate.

[0010] As a further technical solution of the present utility model, a guiding rod is slidably penetrated through a position close to the bottom end of the mounting plate, and one end of the guiding rod is fixedly connected to the tool holder.

[0011] As a further technical solution of the present utility model, the supporting member further includes a threaded pin, the threaded pin is coaxially connected to the bottom end of the limit pin, and a plurality of uniformly distributed threaded grooves are formed on the top of the turntable, and the threaded grooves are matched with the threaded pins.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the limit pin on the turntable passes through the flange hole on the flange blind plate body, and with the cooperation of the supporting ring, it is convenient to hang and support the flange blind plate body. With the cooperation of the positioning mechanism, it is not only convenient to press and position the flange blind plate body, so that the flange blind plate body will not jump during the rotation of the turntable, but also convenient to quickly clamp and position the flange blind plate body.

[0014] 2. In the present utility model, by moving the tool holder, it is convenient for the milling cutter to approach the flange blind plate body after clamping. The V-shaped cutting edge is convenient to adapt to flange blind plate bodies of different thicknesses, and it is convenient for the outer circumferential end faces on both sides of the flange blind plate body to abut against the V-shaped cutting edge. With the rotation of the turntable, it is convenient to synchronously chamfer the outer circumferences on both sides of the flange blind plate body, which is beneficial to improving the processing efficiency. Description of the Drawings

[0015] Figure 1 It is a three-dimensional view of a flange blind plate outer circumferential chamfering milling machine of the present utility model;

[0016] Figure 2 It is a three-dimensional view when the flange blind plate body is processed in a flange blind plate outer circumferential chamfering milling machine of the present utility model;

[0017] Figure 3This is a three-dimensional view of the connection part between the support and the turntable in a flange blank outer circle chamfering milling machine of the present utility model;

[0018] Figure 4 This is a three-dimensional view of the support in a flange blank outer circle chamfering milling machine of the present utility model;

[0019] Figure 5 This is a three-dimensional view of the connection part between the milling cutter and the tool holder in a flange blank outer circle chamfering milling machine of the present utility model;

[0020] Figure 6 This is a three-dimensional view of the pressure plate in a flange blank outer circle chamfering milling machine of the present utility model.

[0021] In the figure: 1, machine body; 2, turntable; 3, support; 301, limit pin; 302, support ring; 303, threaded pin; 4, flange blank body; 5, tool holder; 6, milling cutter; 7, V-shaped cutting edge; 8, fixing plate; 9, first cylinder; 10, pressure plate; 11, screw rod; 12, guide groove; 13, ball; 14, mounting plate; 15, second cylinder; 16, guide rod. Specific embodiments

[0022] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1-6 shown, a flange blank outer circle chamfering milling machine includes a machine body 1, a turntable 2 and a motor. The turntable 2 is rotatably installed on the top of the machine body 1, and the motor is located inside the machine body 1 for driving the turntable 2 to rotate. Four support members 3 distributed in a "cross" shape are installed on the top of the turntable 2, and the support members 3 are used to support the flange blank body 4;

[0024] The support member 3 includes a limit pin 301 and a support ring 302. The limit pin 301 is installed on the turntable 2, and the support ring 302 is fixedly sleeved on the outer side wall of the limit pin 301. The support member 3 further includes a threaded pin 303, and the threaded pin 303 is coaxially connected to the bottom end of the limit pin 301. A plurality of uniformly distributed threaded grooves are formed on the top of the turntable 2, and the threaded grooves are matched with the threaded pin 303, which is convenient to replace the support member 3 as needed and convenient to adapt to the flange holes on flange blank bodies 4 of different models.

[0025] A positioning mechanism for pressing the flange blind plate body 4 is installed on the top of the machine body 1. The positioning mechanism includes a fixing plate 8 installed on the top of the machine body 1. The fixing plate 8 is in a "7"-shaped structure. A first cylinder 9 is installed on the top of the fixing plate 8. The piston rod of the first cylinder 9 is connected to a pressure plate 10 located directly above the turntable 2, which facilitates pressing on the top of the flange blind plate body 4 to ensure that it does not jump during the rotation process. A plurality of evenly distributed ball grooves are provided on the side of the pressure plate 10 close to the turntable 2, and balls 13 are installed in the ball grooves. Part of the balls 13 extends outside the ball grooves, which is beneficial to reducing the friction between the pressure plate 10 and the flange blind plate body 4.

[0026] A feedable tool holder 5 is provided on the top of the machine body 1. The top of the machine body 1 is fixedly connected with a mounting plate 14. A second cylinder 15 for driving the tool holder 5 to feed is connected to the mounting plate 14. A guide rod 16 is slidably penetrated through a position near the bottom end of the mounting plate 14. One end of the guide rod 16 is fixedly connected to the tool holder 5, which plays a guiding role and is beneficial to improving the stability of the tool holder 5 during feeding.

[0027] A milling cutter 6 corresponding to the flange blind plate body 4 is installed on the tool holder 5. A V-shaped cutting edge 7 is provided on the side of the milling cutter 6 close to the flange blind plate body 4, which is convenient for adapting to flange blind plate bodies 4 of different thicknesses. The top of the milling cutter 6 is connected to a screw rod 11 through a bearing seat. The screw rod 11 is threadedly connected to the top end of the tool holder 5, which is convenient for adjusting the milling cutter 6 to rise and fall. A guide groove 12 is provided on the side of the tool holder 5 close to the milling cutter 6. A slider sliding along the guide groove 12 is installed on the side wall of the milling cutter 6, which improves the stability of the lifting adjustment of the milling cutter 6.

[0028] The working principle of the present utility model: According to the specific dimensions of the flange holes on the flange blind plate body 4 to be processed, select the support member 3 with the corresponding size. The cross-sectional diameters of the limit pins 301 of different support members 3 are different, but the sizes of the threaded pins 303 connected to the bottom ends of the limit pins 301 are the same. Install the support member 3 with the corresponding size at the appropriate position on the turntable 2, and then the corresponding flange holes on the flange blind plate body 4 can be sleeved on the limit pins 301. The flange blind plate body 4 can be suspended and supported by using the retaining ring 302. Start the first cylinder 9 to drive the pressure plate 10 to press the flange blind plate body 4, and the position can be quickly limited. Rotate the screw rod 11 to adjust the milling cutter 6 to rise and fall, so that the V-shaped cutting edge 7 of the milling cutter 6 corresponds to the flange blind plate body 4. Finally, start the second cylinder 15 to drive the tool holder 5 to feed until the V-shaped cutting edge 7 abuts against the outer circular end faces on the upper and lower sides of the flange blind plate body 4 respectively. Control the rotation of the turntable 2 to synchronously chamfer the outer circles on both sides of the flange blind plate body 4.

[0029] The above embodiments are only used to illustrate the technical method of the present utility model rather than to limit it. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present utility model.

Claims

1. A flange blind plate external chamfering milling machine, comprising a machine body (1), a turntable (2) and a motor, wherein the turntable (2) is rotatably mounted on the top of the machine body (1), and the motor is located in the machine body (1) and is used to drive the turntable (2) to rotate, characterized in that: Four support members (3) arranged in a "cross" shape are installed on the top of the rotating disk (2). The support members (3) are used to support the flange blind plate body (4). The support members (3) include a limit pin (301) and a support ring (302). The limit pin (301) is installed on the rotating disk (2). The support ring (302) is fixedly sleeved on the outer wall of the limit pin (301). A positioning mechanism for pressing the flange blind plate body (4) is installed on the top of the machine body (1). A feedable tool holder (5) is provided on the top of the machine body (1). A milling cutter (6) corresponding to the flange blind plate body (4) is installed on the tool holder (5). A V-shaped cutting edge (7) is provided on a side of the milling cutter (6) close to the flange blind plate body (4).

2. A flange blind plate external chamfering milling machine according to claim 1, characterized in that: The positioning mechanism comprises a fixing plate (8) mounted on the top of the machine body (1); the fixing plate (8) is a "7"-shaped structure; a first cylinder (9) is mounted on the top of the fixing plate (8); a piston rod of the first cylinder (9) is connected to a pressure plate (10) located directly above the turntable (2).

3. A flange blind plate external chamfering milling machine according to claim 1, characterized in that: The top of the milling cutter (6) is connected to a screw rod (11) via a bearing seat, and the screw rod (11) is threadedly connected to the top of the tool holder (5). A guide groove (12) is provided on a side of the tool holder (5) close to the milling cutter (6), and a sliding block is installed on the side wall of the milling cutter (6) to slide along the guide groove (12).

4. A flange blind plate external chamfering milling machine according to claim 2, characterized in that: A plurality of evenly distributed ball grooves are provided on one side of the pressure plate (10) close to the rotating plate (2), and balls (13) are installed in the ball grooves. Parts of the balls (13) extend to the outside of the ball grooves.

5. The flange blind plate external chamfering milling machine according to claim 1, characterized in that: A mounting plate (14) is fixedly connected to the top of the machine body (1), and a second cylinder (15) for driving the tool holder (5) to feed is connected to the mounting plate (14).

6. A flange blind plate external chamfering milling machine according to claim 5, characterized in that: A guide rod (16) is slidably provided at a position near the bottom end of the mounting plate (14), and one end of the guide rod (16) is fixedly connected to the tool holder (5).

7. The flange blind plate external chamfering milling machine according to claim 1, characterized in that: The support member (3) further comprises a threaded pin (303), wherein the threaded pin (303) is coaxially connected to the bottom end of the limit pin (301), and a plurality of evenly distributed threaded grooves are formed on the top of the turntable (2), and the threaded grooves match the threaded pin (303).

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