Surface grinding device for extrusion forming three-way pipe

Abstract

The utility model discloses a surface grinding device for an extrusion forming three-way pipe. The grinding device comprises an assembly column which is arranged in a branch pipe of the three-way pipe in a penetrating mode and attached to the inner wall of the branch pipe, and a sliding support which moves in the radial direction of a grinding wheel is further arranged on one side of the assembly column. The assembling column is of a deformation structure under the action of external force, an annular groove is formed in the surface, located on one side of the sliding support, of the assembling column, and a fastening cover body which can be embedded into the annular groove and drives the assembling column to abut against the inner wall of the branch pipe is arranged on the sliding support. The grinding device is detachably assembled and connected with the branch pipe, so that the main pipe of the three-way pipe can be exposed after the three-way pipe is integrally assembled and fixed, and stable grinding operation is facilitated. In addition, the grinding device can drive the three-way pipe to move relative to the grinding wheel in the length direction of the grinding area, complete grinding operation can be conducted on the grinding area, and the defects that the surface quality of the main pipe is reduced and the wall thickness is affected due to the fact that manual holding grinding is unstable at present are overcome.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tee pipe forming, in particular to a surface grinding device for extrusion forming tee pipe. BACKGROUND

[0002] The tee pipe structure is shown in the accompanying drawings, including a main pipe and a branch pipe perpendicular to the main pipe. Figure 4 At present, when forming a large-diameter tee pipe, it can be formed by extrusion molding through a mold. Figures 1-3 The mold structure is shown in the accompanying drawings, including upper and lower molds with circular arc groove structure. Figure 3 When forming, the straight pipe blank in a heated state is placed between the upper and lower molds, and the pipe ends are extruded from both sides, so that the middle bottom of the pipe body is embedded into the through hole of the lower mold. Figure 4 The tee pipe shown in the accompanying drawings is formed.

[0003] Because the upper and lower molds are half structures, when the tee pipe is formed, the upper and lower molds are attached, and the attached plane cannot guarantee a flat structure, so there is still a gap at the attached position. Figure 6 Under the action of the large extrusion of the tee pipe forming, the side wall of the main pipe will be partially embedded in the gap, which will cause the protrusion (ridge) on the surface of the main pipe. After the tee pipe is formed, in order to improve the surface accuracy, the protrusions (ridges) on both sides of the main pipe need to be ground.

[0004] In view of the above problems, the present application aims to provide a surface grinding device for extrusion forming tee pipe, which can perform complete and stable grinding operation on the grinding area, and solve the problems of surface quality decline and wall thickness affected by manual holding and unstable grinding.

[0005] In order to achieve the above purpose, the technical solution adopted by the present application is as follows: a surface grinding device for extrusion forming tee pipe, the tee pipe including a main pipe and a branch pipe perpendicular to the main pipe, the tee pipe having a grinding area on the surface of the main pipe after extrusion forming, characterized in that: the grinding device is detachably connected with the branch pipe, and the grinding device drives the tee pipe to displace along the length direction of the grinding area compared with the grinding wheel.

[0006] Preferably, the grinding device includes an assembly column that passes through the branch pipe and is in contact with the inner wall of the branch pipe, and a sliding bracket that moves radially along the grinding wheel is also provided on one side of the assembly column.

[0007] Preferably, the assembly column is a deformable structure under external force, with an circumferential groove on its surface located on one side of the sliding bracket, and a fastening cover that can be embedded in the circumferential groove and drives the assembly column to abut against the inner wall of the branch pipe on the sliding bracket.

[0008] Preferably, the sliding bracket is also vertically adjustable with horizontal adjusting rods that contact the bottom surfaces of both sides of the main pipe.

[0009] The beneficial effects of this application are: the grinding device is detachably connected to the branch pipe, allowing the tee pipe to be assembled and fixed as a whole while the main pipe is exposed, facilitating stable grinding operations. This grinding device can also drive the tee pipe to shift relative to the grinding wheel along the length of the grinding area, enabling a complete grinding operation of the grinding area and solving the drawbacks of current manual grinding methods that are unstable and cause a decrease in the surface quality and wall thickness of the main pipe. Attached Figure Description

[0010] Figure 1 The upper and lower mold structures are for forming a T-shaped pipe.

[0011] Figure 2 This diagram illustrates the process of placing a straight tube blank in the upper and lower molds for forming.

[0012] Figure 3 To Figure 2 The diagram shows a straight tube blank being extruded into a tee pipe at both ends.

[0013] Figure 4 for Figure 3 Illustration of a tee pipe after extrusion molding.

[0014] Figure 5 for Figure 3 Side view.

[0015] Figure 6 for Figure 5 Enlarged view of the structure at point A.

[0016] Figure 7 This is a diagram showing the positions of the grinding device and grinding wheel in this application.

[0017] Figure 8 For the purpose of this application Figure 7 Diagram showing the assembly and grinding of a tee pipe on the basic structure.

[0018] Figure 9 This is a schematic diagram of the assembly column and fastening cover structure of this application.

[0019] Figure 10This diagram illustrates the locking mechanism between the assembly column and the branch pipe in this application.

[0020] In the diagram: 7-fastening bolt; 81-upper mold; 82-lower mold; 9-straight tube blank. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] See attached document Figures 1-10 The illustration shows a surface grinding device for an extruded tee pipe. The tee pipe includes a main pipe 11 and a branch pipe 12 perpendicular to the main pipe 11. After extrusion molding, the surface of the main pipe 11 has an axis-symmetrical grinding area 1a. To achieve stable grinding of this grinding area 1a, this application provides a surface grinding device, such as... Figure 8 As shown, since the surface of the branch pipe is smooth, it can be detachably assembled and connected with the branch pipe 12, so that the tee pipe can be assembled and fixed as a whole and the main pipe 11 can be exposed to the outside, which is convenient for grinding operations.

[0023] Based on assembly, such as Figure 8 As shown, the grinding device drives the tee pipe to displace relative to the grinding wheel 2 along the length of the grinding area 1a. Since the grinding area 1a is located along the entire length of the main pipe sidewall, driving the tee pipe (main pipe 11) to displace relative to the grinding wheel 2 along the length of the grinding area 1a allows for a complete grinding operation of the grinding area 1a, solving the problem of unstable manual grinding causing a decrease in the surface quality and affecting the wall thickness of the main pipe 11.

[0024] Specifically, such as Figures 7-8 As shown, the grinding device includes an assembly column 3 that passes through the branch pipe 12 and is in contact with the inner wall of the branch pipe 12. A sliding bracket 4 that moves radially along the grinding wheel 2 is also provided on one side of the assembly column 3. The assembly column 3 has a certain surface width. After the branch pipe 12 is fitted onto the assembly column 3, the deflection of the tee pipe is restricted, thereby ensuring that the grinding area 1a is linearly aligned with the grinding wheel 2. After the grinding area 1a is aligned with the grinding wheel 2, the sliding bracket 4 slides radially along the grinding wheel 2, thus enabling complete grinding of one side of the grinding area 1a. The horizontal sliding of the sliding bracket 4 ensures the consistency of the grinding depth.

[0025] After the grinding on one side is completed, the three-way pipe is disengaged from the grinding wheel 2 by the sliding bracket 4, and then the grinding area 1a on the other side is rotated to the position corresponding to the grinding wheel 2, so as to achieve the straight grinding operation in the same way.

[0026] To avoid the branch pipe 12 rotating on the assembly column 3 due to the force transmitted by the grinding wheel 2 during the grinding process, the assembly column 3 is a deformable structure under external force, preferably made of rubber, such as... Figures 9-10 As shown, an circumferential groove 3a (preferably a conical structure) is formed on one side surface of the sliding bracket 4, and a fastening cover 5 is provided on the sliding bracket 4, which can be embedded in the circumferential groove 3a and drives the assembly column 3 to abut against the inner wall of the branch pipe 12. The outer side of the fastening cover 5 is preferably threaded to the sliding bracket 4. After the branch pipe 12 is sleeved on the assembly column 3 and vertically aligned with the grinding wheel 2, the fastening cover 5 is rotated so that it is embedded in the circumferential groove 3a (the side wall thickness of the fastening cover 5 is greater than the inner width of the circumferential groove 3a), which drives the fastening cover 5 to deform outward, thereby achieving tight contact with the inner wall of the branch pipe 12. This effectively overcomes the force of the grinding wheel 2 during the grinding process and realizes a straight grinding operation on the grinding area 1a.

[0027] After the branch pipe 12 is fitted onto the assembly column 3, it is difficult to adjust the main pipe 11 to a high-precision horizontal grinding state, which affects the grinding depth during grinding. Therefore, to solve this problem, such as... Figure 8 As shown, the sliding bracket 4 is also equipped with a horizontal adjustment rod 6 that is vertically adjustable (preferably by means of fastening bolts 7) and contacts the bottom surfaces of both sides of the main pipe 11. The horizontal adjustment rod 6 is preferably a V-shaped structure, which can simultaneously contact the bottom surfaces of the main pipe 11 on both sides of the branch pipe 12, thereby adjusting the main pipe 11 to a horizontal grinding state. Then, the fastening cover 5 is used to lock the rod in place and perform the grinding operation.

[0028] The principle of this application is as follows: When performing the grinding operation on the grinding area 1a of the main pipe 11 of the tee pipe, the branch pipe 12 is fitted onto the assembly column 3, so that the grinding area 1a corresponds vertically to the grinding wheel 2. Then, the horizontal adjustment rod 6 contacts both bottom surfaces of the main pipe 11 simultaneously, adjusting the main pipe 11 to a horizontal position. Next, the fastening cover 5 is rotated so that it is embedded in the circumferential groove 3a, driving the fastening cover 5 to deform outward, thereby achieving tight contact and locking with the inner wall of the branch pipe 12. Then, the sliding bracket 4 drives the main pipe 11 to move linearly (reciprocatingly), and the grinding area 1a contacts the grinding wheel 2, realizing the grinding operation on one side. Then, the branch pipe 12 is rotated so that the grinding area 1a on the other side of the main pipe 11 corresponds to the grinding wheel 2, and after leveling and locking, a linear grinding operation is performed.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this application. Various changes and modifications may be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A surface grinding device for an extruded tee pipe, the tee pipe comprising a main pipe (11) and a branch pipe (12) perpendicular to the main pipe (11), wherein the surface of the main pipe (11) of the tee pipe after extrusion molding has an axis-symmetrical grinding area (1a), characterized in that: The grinding device is detachably assembled with the branch pipe (12), and the grinding device drives the tee pipe to displace relative to the grinding wheel (2) along the length direction of the grinding area (1a).

2. The grinding device according to claim 1, characterized in that: The grinding device includes an assembly column (3) that passes through the branch pipe (12) and is attached to the inner wall of the branch pipe (12), and a sliding bracket (4) that moves radially along the grinding wheel (2) is also provided on one side of the assembly column (3).

3. The grinding device according to claim 2, characterized in that: The assembly column (3) is a deformable structure under external force. An circumferential groove (3a) is provided on its surface on one side of the sliding bracket (4), and a fastening cover (5) is provided on the sliding bracket (4) that can be embedded in the circumferential groove (3a) and drive the assembly column (3) to abut against the inner wall of the branch pipe (12).

4. The grinding device according to claim 3, characterized in that: A horizontal adjusting rod (6) that contacts the bottom surfaces on both sides of the main pipe (11) is also vertically adjusted on the sliding bracket (4).

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