Pipe rolling device

Abstract

The utility model discloses a pipe rolling device. The pipe rolling device comprises an upper module, a lower module, a semi-forming rolling mechanism and a forming rolling mechanism, wherein the semi-forming rolling mechanism and the forming rolling mechanism are arranged between the upper module and the lower module in parallel; the upper die set comprises an upper base plate and an upper die base which are installed from top to bottom, the lower die set comprises a lower die base and a lower base plate which are installed from top to bottom, guide pipes are vertically installed on the two sides of the bottom of the upper die base, guide pieces are vertically installed at the positions, corresponding to the guide pipes, of the top of the lower die base, and the guide pieces are sleeved with the guide pipes. Stiffening structures are arranged between the upper seat plate and the upper die seat and between the lower die seat and the lower seat plate, each stiffening structure comprises a plurality of vertical plates, first stiffening plates and second stiffening plates, and the first stiffening plates and the second stiffening plates are located on the two sides of the vertical plates, so that the stiffening structures are of inverted umbrella-shaped structures. Due to the arrangement of the stiffening structure, the instability of the device caused by stamping is effectively relieved, and a semi-formed part and a formed part can be pressed at the same time.

Description

Technical Field

[0001] The utility model relates to the field of rolling dies, and more specifically, to a tube rolling device. Background Art

[0002] The stamping and curling process is a metal processing method mainly used to manufacture round or quasi-circular parts. This process places the tube on a curling mechanism and applies pressure to the tube so that the tube is curled into the desired shape under the pressure of the die.

[0003] In order to deal with the instability caused by stamping, a stiffening structure is now added inside the upper and lower die assemblies to enhance stability. Utility Model Content

[0004] The utility model aims to provide a pipe rolling device, which is provided with a stiffening structure to effectively alleviate the instability of the device brought by the punching belt, and can press semi-formed parts and formed parts at the same time.

[0005] The technical solution adopted by the utility model to solve this technical problem is: to provide a pipe rolling device for pressing a pipe into a semi-formed pipe and pressing the semi-formed pipe into a circle, comprising an upper die set, a lower die set, and a semi-formed rolling mechanism and a formed rolling mechanism arranged in parallel between the upper die set and the lower die set;

[0006] The upper die set includes an upper seat plate and an upper die seat installed from top to bottom, and the lower die set includes a lower die seat and a lower seat plate installed from top to bottom. Guide tubes are vertically installed on both sides of the bottom of the upper die seat, and a guide piece is vertically installed on the top of the lower die seat corresponding to the position of the guide tube, and the guide tube is sleeved outside the guide piece;

[0007] A stiffening structure is provided between the upper seat plate and the upper die seat, and between the lower die seat and the lower seat plate. The stiffening structure includes a plurality of vertical plates, a first stiffening plate and a second stiffening plate. The first stiffening plate and the second stiffening plate are located on both sides of the vertical plates, so that the stiffening structure is an inverted umbrella-shaped structure.

[0008] Preferably, in the tube rolling device, the inner surface of the guide tube fits with the outer surface of the guide member, and a spring is sleeved on the outer side of the bottom of the guide member.

[0009] Preferably, in the tube rolling device, the semi-forming rolling mechanism comprises a semi-forming male die, a semi-forming female die and first positioning blocks located on both sides of the semi-forming female die;

[0010] The semi-molding convex die is fixed to the upper die seat by screws and positioning keys, and the semi-molding concave die is fixed to the lower die seat by screws and positioning keys.

[0011] Preferably, in the tube rolling device, the semi-forming convex die matches the shape of the semi-forming concave die.

[0012] Preferably, in the tube rolling device, the first positioning blocks are symmetrically arranged around the central axis of the semi-forming die.

[0013] Preferably, in the tube rolling device, the forming and rolling mechanism comprises a rolling punch, a rolling die and second positioning blocks located on both sides of the rolling die;

[0014] The rolling punch is fixed to the upper die seat by screws, and the rolling concave die is fixed to the lower die seat by screws and positioning keys.

[0015] Preferably, in the tube rolling device, the second positioning blocks are symmetrically arranged around the central axis of the rolling die.

[0016] The utility model at least has the following beneficial effects:

[0017] 1. The utility model can simultaneously press semi-formed parts and formed parts on one device.

[0018] 2. The setting of the stiffening structure effectively alleviates the instability of the device caused by stamping.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a pipe rolling device of the utility model;

[0021] Explanation of the accompanying drawings: 1. upper die set, 2. lower die set, 3. semi-formed rolling mechanism, 4. formed rolling mechanism, 5. guide tube, 6. guide member, 7. upper seat plate, 8. upper die seat, 9. lower seat plate, 10. lower die seat, 11. stiffening structure, 12. vertical plate, 13. first stiffening plate, 14. second stiffening plate, 15. semi-formed punch, 16. semi-formed die, 17. first positioning block, 18. rolling punch, 19. rolling die, 20. second positioning block, 21. spring, 22. screw, 23. positioning key, 24. pipe, 25. semi-formed pipe. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0023] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0025] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0026] like Figure 1 As shown, a preferred embodiment of the utility model provides a tube rolling device for pressing a tube 24 into a semi-formed tube 25 and pressing the semi-formed tube 25 into a circle, comprising an upper die set 1, a lower die set 2, and a semi-formed rolling mechanism 3 and a forming rolling mechanism 4 arranged in parallel between the upper die set 1 and the lower die set 2, the semi-formed rolling mechanism 3 being used to press the tube 24 into three 120° arcs so that the semi-formed tube 25 presents a W-shaped structure, and the forming rolling mechanism 4 being used to press the W-shaped semi-formed tube 25 into a circle; a single stamping operation can complete a W-shaped semi-formed tube 25 and a final rolled formed tube.

[0027] The upper mold assembly 1 includes an upper seat plate 7 and an upper mold base 8 installed from top to bottom, and the lower mold assembly 2 includes a lower mold base 10 and a lower seat plate 9 installed from top to bottom. Guide tubes 5 are vertically installed on both sides of the bottom of the upper mold base 8, and a guide member 6 is vertically installed on the top of the lower mold base 10 corresponding to the position of the guide tube 5. The guide tube 5 is sleeved on the outside of the guide member 6; the device is guided by aligning the guide tube 5 and the guide member 6.

[0028] A stiffening structure 11 is provided between the upper seat plate 7 and the upper die seat 8 and between the lower die seat 10 and the lower seat plate 9. The stiffening structure 11 includes a plurality of vertical plates 12, a first stiffening plate 13 and a second stiffening plate 14. The first stiffening plate 13 and the second stiffening plate 14 are located on both sides of the vertical plate 12, so that the stiffening structure 11 is an inverted umbrella-shaped structure. By increasing the contact area between the stiffening structure and the upper seat plate 7 and the lower die seat 10, stiffening is performed more effectively, thereby improving the stability of the device when responding to stamping.

[0029] Furthermore, in the tube rolling device, the inner surface of the guide tube 5 is in contact with the outer surface of the guide member 6, and a spring 21 is sleeved on the outer side of the bottom of the guide member 6. The spring 21 can facilitate the reset of the device to make the next workpiece.

[0030] Furthermore, in the tube rolling device, the semi-molding rolling mechanism 3 includes a semi-molding male die 15, a semi-molding female die 16 and first positioning blocks 17 located on both sides of the semi-molding female die 16;

[0031] The semi-molding convex die 15 is fixed to the upper die base 8 by screws 22 and positioning keys 23, and the semi-molding concave die 16 is fixed to the lower die base 10 by screws 22 and positioning keys 23. When unloading, the semi-molding convex die 15 can be easily separated from the upper die base 8 by screws 22, and the semi-molding concave die 16 can be easily separated from the lower die base 10.

[0032] Furthermore, in the tube rolling device, the semi-forming convex die 15 and the semi-forming concave die 16 match in shape.

[0033] Furthermore, in the tube rolling device, the first positioning blocks 17 are symmetrically arranged around the central axis of the semi-forming die 16. The first positioning blocks 17 are used to position the tube 24 to prevent the tube 24 from moving during the pressing process, resulting in inaccurate forming.

[0034] Furthermore, in the tube rolling device, the forming and rolling mechanism 4 includes a rolling punch 18, a rolling die 19 and second positioning blocks 20 located on both sides of the rolling die 19;

[0035] The rolling punch 18 is fixed to the upper die base 8 by screws 22, and the rolling die 19 is fixed to the lower die base 10 by screws 22 and positioning keys 23. When unloading, the rolling punch 18 can be easily separated from the upper die base 8 by screws 22, and the rolling die 19 can be easily separated from the lower die base 10.

[0036] Furthermore, in the tube rolling device, the second positioning blocks 20 are symmetrically arranged around the central axis of the rolling die 19. The second positioning blocks 20 are used to position the semi-formed tube 25 to prevent the semi-formed tube 25 from moving during the pressing process, resulting in inaccurate forming.

[0037] The specific working process is as follows: when in use, the tube 24 can be placed on the semi-forming die 16, the tube 24 is located between the first positioning blocks 17, the semi-formed tube 25 is placed on the rolling die 19, the semi-formed tube 25 is located between the second positioning blocks 20, the punching machine drives the upper die set 1 to move downward, and aligns the guide tube 5 and the guide member 6 to guide the device, so that the semi-forming punch 15 is pressed against the tube 24, and the rolling punch 18 is pressed against the semi-formed tube 25, the semi-forming punch 15 is molded with the semi-forming die 16, and the rolling punch 18 is molded with the rolling die 19, and one stamping operation can complete a W-shaped semi-formed tube 25 and a final rolled formed tube.

[0038] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A pipe rolling device, characterized in that: Used to press a pipe into a semi-formed pipe and press the semi-formed pipe into a circle, comprising an upper die set, a lower die set, and a semi-formed rounding mechanism and a formed rounding mechanism arranged in parallel between the upper die set and the lower die set; The upper die set includes an upper seat plate and an upper die seat installed from top to bottom, and the lower die set includes a lower die seat and a lower seat plate installed from top to bottom. Guide tubes are vertically installed on both sides of the bottom of the upper die seat, and a guide piece is vertically installed on the top of the lower die seat corresponding to the position of the guide tube, and the guide tube is sleeved outside the guide piece; A stiffening structure is provided between the upper seat plate and the upper die seat, and between the lower die seat and the lower seat plate. The stiffening structure includes a plurality of vertical plates, a first stiffening plate and a second stiffening plate. The first stiffening plate and the second stiffening plate are located on both sides of the vertical plates, so that the stiffening structure is an inverted umbrella-shaped structure.

2. The pipe rolling device according to claim 1, characterized in that: The inner surface of the guide tube is in contact with the outer surface of the guide member, and a spring is sleeved on the outer side of the bottom of the guide member.

3. The pipe rolling device according to claim 1, characterized in that: The semi-forming rolling mechanism comprises a semi-forming convex die, a semi-forming concave die and first positioning blocks located on both sides of the semi-forming concave die; The semi-molding convex die is fixed to the upper die seat by screws and positioning keys, and the semi-molding concave die is fixed to the lower die seat by screws and positioning keys.

4. The pipe rolling device according to claim 3, characterized in that: The shape of the semi-forming convex mold matches that of the semi-forming concave mold.

5. The tube rolling device according to claim 3, characterized in that: The first positioning blocks are symmetrically arranged around the central axis of the semi-forming die.

6. The pipe rolling device according to claim 1, characterized in that: The forming and rolling mechanism comprises a rolling convex die, a rolling concave die and second positioning blocks located on both sides of the rolling concave die; The rolling punch is fixed to the upper die seat by screws, and the rolling concave die is fixed to the lower die seat by screws and positioning keys.

7. The tube rolling device according to claim 6, characterized in that: The second positioning blocks are symmetrically arranged around the central axis of the rolling die.

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