Reducing press

Abstract

The utility model relates to the technical field of press machines, in particular to a variable-diameter press machine, which comprises a bottom plate and two side plates fixed on the bottom plate, and is characterized in that a first support plate and a second support plate are fixed on the side plates, a hydraulic cylinder is fixed on the first support plate, a bending plate is fixed at the output end of the hydraulic cylinder, and the bending plate is fixed on the second support plate. Two semicircular cylinders are hinged to the bending plate, the two semicircular cylinders can be combined into a cylinder, a conical seat is installed on the bottom plate, and the conical seat and the cylinder formed by combining the semicircular cylinders are concentrically arranged; the air cylinder is designed to be matched with the semicircular cylinder to clamp the copper pipe, then the hydraulic cylinder is started to be matched with the conical base for reaming, the reaming process can be simply, conveniently and efficiently completed, the production efficiency is improved, the whole process is mechanically completed, and the safety coefficient is high.

Description

Technical Field

[0001] This utility model relates to the field of press technology, specifically a variable diameter press. Background Technology

[0002] In the existing electrode copper tube processing, flaring is a common process. Flaring of copper tubes is done manually, by workers using hammers to strike the flaring fixture to complete the flaring process.

[0003] Using the above-mentioned copper tube flaring method wastes manpower and resources, is labor-intensive and time-consuming, has low production efficiency, is prone to workplace accidents, is difficult to operate, and affects the quality of copper tube flaring. Summary of the Invention

[0004] The technical problem to be solved by this invention is to design a variable diameter press to address the issues of low efficiency and low safety in copper tube flaring.

[0005] To solve the above-mentioned technical problems, the variable diameter press of this utility model includes a base plate and two side plates fixed on the base plate. A first support plate and a second support plate are fixed on the side plates. A hydraulic cylinder is fixed on the first support plate. A bending plate is fixed at the output end of the hydraulic cylinder. Two semi-cylinders are hinged on the bending plate. The two semi-cylinders can be combined to form a cylinder. A conical seat is installed on the base plate. The conical seat and the cylinder formed by the semi-cylinders are concentrically arranged.

[0006] Preferably, the output end of the hydraulic cylinder is also fixed with a mounting frame, and cylinders are fixed on both sides of the mounting frame. The output ends of the two cylinders are fixed with abutment joints, which can overlap with the side wall of the semi-cylinder.

[0007] Preferably, the conical seat is rotatably mounted on the second support plate via a bearing, the bottom surface of the conical seat is coaxially fixed to the worm gear via a support shaft, the worm gear meshes with the worm, one end of the worm is coaxially fixed to the motor output shaft, the motor is fixed on the base plate, and the other end of the worm is rotatably mounted on the base plate via a third support plate.

[0008] Preferably, the second support plate has an annular groove, a seat ring is fixed in the annular groove, a moving ring is fixed on the bottom surface of the conical seat, and a rolling element is arranged between the seat ring and the moving ring.

[0009] Preferably, a friction pad is fixed to the inner wall of the semi-cylinder.

[0010] Preferably, the friction pad is made of carbon fiber.

[0011] In summary, the beneficial effects of this utility model are as follows:

[0012] ① This new design uses a cylinder and a semi-cylinder to clamp the copper tube, and then a hydraulic cylinder is activated to work with a conical seat to enlarge the hole. This allows for a simple and efficient hole enlargement process, improving production efficiency. The entire process is mechanized, resulting in a high safety factor.

[0013] ② This new type of device uses a motor and worm gear structure to drive the conical seat to rotate. This allows the conical seat to expand while rotating, resulting in more uniform contact between the conical seat and the end of the copper tube. This avoids excessive or insufficient local deformation and ensures the uniformity of the expansion. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 This is a front view of a variable diameter press;

[0016] Figure 2 This is an isometric drawing of a variable diameter press.

[0017] Figure 3 This is a schematic diagram of the fit between a cylinder and a semi-cylinder;

[0018] Figure 4 This is a schematic diagram showing the fit between the conical seat and the second support plate;

[0019] Figure 5 This is a partial isometric view from the first perspective of a variable diameter press.

[0020] In the diagram: 1-Base plate; 2-Side plate; 10-First support plate; 11-Second support plate; 13-Hydraulic cylinder; 14-Bending plate; 15-Semi-cylinder; 16-Conical seat; 20-Mounting frame; 21-Cylinder; 22-Abutment joint; 30-Support shaft; 31-Worm gear; 32-Worm; 33-Motor; 34-Third support plate; 40-Annular groove; 41-Seat ring; 42-Moving ring; 43-Rolling element; 50-Friction pad. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0026] See attached document Figure 1-5 This utility model discloses a variable diameter press, which includes a base plate 1 and two side plates 2 fixed on the base plate 1. The two side plates 2 are located on both sides of the base plate 1 and are vertically arranged. A first support plate 10 and a second support plate 11 are fixed on the side plates 2, with the first support plate 10 positioned above the second support plate 11.

[0027] A hydraulic cylinder 13 is fixed on the first support plate 10. A bending plate 14 is fixed to the output end of the hydraulic cylinder 13. Two semi-cylinders 15 are hinged to the bending plate 14, and the two semi-cylinders 15 are symmetrically arranged about the central axis of the bending plate 14. The two semi-cylinders 15 can be combined to form a cylinder. A conical seat 16 is installed on the base plate 1, and the conical seat 16 and the semi-cylinders 15 are concentrically arranged with respect to the combined cylinder.

[0028] When it is necessary to flare the copper tube, place one end of the copper tube between the two semi-cylinders 15, then align the two semi-cylinders 15 together, and then fix the two semi-cylinders 15 with a fixing hoop. Then start the hydraulic cylinder 13. The output end of the hydraulic cylinder 13 drives the bending plate 14 to move downward, thereby driving the two semi-cylinders 15 and the copper tube clamped by the two semi-cylinders 15 to move downward. When the copper tube contacts the conical seat 16, the end that needs to be flared will be expanded by the conical seat 16, thus completing the flaring.

[0029] Of course, using a fixing hoop for fixing is quite labor-intensive, so a cylinder is used to assist in the engagement of the two semi-cylinders 15. Specifically, the output end of the hydraulic cylinder 13 is also fixed with a mounting frame 20, and cylinders 21 are fixed on both sides of the mounting frame 20. The output ends of the two cylinders 21 are fixed with abutment joints 22, which can overlap with the side walls of the semi-cylinder 15.

[0030] When the two semi-cylinders 15 need to be aligned, simply start the cylinder 21. The output heads of the two cylinders 21 drive the abutment 22 to abut against the outer wall of the semi-cylinder 15, and then clamp the two semi-cylinders 15 together.

[0031] As a further explanation of this embodiment, the conical seat 16 is rotatably mounted on the second support plate 11 via bearings. The bottom surface of the conical seat 16 is coaxially fixed with the worm gear 31 via the support shaft 30. The worm gear 31 meshes with the worm 32. One end of the worm 32 is coaxially fixed with the output shaft of the motor 33. The motor 33 is fixed on the base plate 1. The other end of the worm 32 is rotatably mounted on the base plate 1 via the third support plate 34.

[0032] Preferably, in order to ensure the stability of the rotation of the worm gear 32, the worm gear 32 is rotatably mounted on the base plate 1.

[0033] As the copper tube moves downward, the motor 33 is started. The output shaft of the motor 33 drives the worm 32 to rotate. Through the meshing of the worm wheel 31 and the worm 32, the worm wheel 31 is driven to rotate, thereby driving the conical seat 16 to rotate. In this way, the tube is flared while rotating, and the contact between the conical seat 16 and the end of the copper tube is more uniform, thereby avoiding excessive or insufficient local deformation and ensuring the uniformity of the flaring.

[0034] As a further explanation of this embodiment, the second support plate 11 is provided with an annular groove 40, a seat ring 41 is fixed in the annular groove 40, a moving ring 42 is fixed on the bottom surface of the conical seat 16, and a rolling element 43 is arranged between the seat ring 41 and the moving ring 42.

[0035] After clamping, in order to prevent the copper tube from rotating under the action of the conical seat 16, a friction pad 50 is fixed on the inner wall of the semi-cylinder 15. The friction pad 50 is made of carbon fiber to increase the coefficient of friction.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, multiple improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A variable diameter press, comprising a base plate (1) and two side plates (2) fixed on the base plate (1), characterized in that, A first support plate (10) and a second support plate (11) are fixed on the side plate (2). A hydraulic cylinder (13) is fixed on the first support plate (10). A bending plate (14) is fixed at the output end of the hydraulic cylinder (13). Two semi-cylinders (15) are hinged on the bending plate (14). The two semi-cylinders (15) can be combined into a cylinder. A conical seat (16) is installed on the bottom plate (1). The conical seat (16) and the semi-cylinders (15) are concentrically arranged to form a cylinder.

2. The variable diameter press as described in claim 1, characterized in that, The output end of the hydraulic cylinder (13) is also fixed with a mounting frame (20). Both sides of the mounting frame (20) are fixed with cylinders (21). The output ends of the two cylinders (21) are fixed with abutment joints (22). The abutment joints (22) can overlap with the side wall of the semi-cylinder (15).

3. The variable diameter press as described in claim 2, characterized in that, The conical seat (16) is rotatably mounted on the second support plate (11) via a bearing. The bottom surface of the conical seat (16) is coaxially fixed with the worm gear (31) via a support shaft (30). The worm gear (31) meshes with the worm (32). One end of the worm (32) is coaxially fixed with the output shaft of the motor (33). The motor (33) is fixed on the base plate (1). The other end of the worm (32) is rotatably mounted on the base plate (1) via a third support plate (34).

4. The variable diameter press as described in claim 3, characterized in that, The second support plate (11) has an annular groove (40), a seat ring (41) is fixed in the annular groove (40), a moving ring (42) is fixed on the bottom surface of the conical seat (16), and a rolling element (43) is arranged between the seat ring (41) and the moving ring (42).

5. The variable diameter press as described in claim 4, characterized in that, A friction pad (50) is fixed to the inner wall of the semi-cylinder (15).

6. The variable diameter press as described in claim 5, characterized in that, The friction pad (50) is made of carbon fiber.

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