Thin-walled tube stretching equipment

Abstract

The utility model relates to the field of thin-walled tube forming devices, and discloses thin-walled tube stretching equipment which comprises a bottom plate, a limiting groove is formed in the bottom plate, a limiting assembly is arranged on the upper surface of the bottom plate, a mounting plate is arranged on the upper surface of the bottom plate, a concave hole is formed in the mounting plate, and a fixing frame is fixedly connected to the side wall of the mounting plate. A sliding rod is slidably connected to the temporal portion of the fixing frame, a pressing plate is fixedly connected to the side wall of the sliding rod, the side wall of the sliding rod is sleeved with a first spring, one end of the first spring is fixedly connected to the side wall of the pressing plate, and the other end of the first spring is fixedly connected to the side wall of the fixing frame. According to the thin-walled tube stretching device, through cooperation of the mounting plate, the concave hole, the clamping plate, the second spring and other structures, the effect that the male die is convenient to replace is achieved, the problem that due to the fact that part of thin-walled tube stretching equipment is fixed in structure, the male die is troublesome to replace after being used for a long time is solved, and the replacement efficiency is improved through the structure.

Description

Technical Field

[0001] The utility model relates to the field of thin-walled tube forming devices, in particular to thin-walled tube stretching equipment. Background Art

[0002] Thin-walled pipes are relatively thin-walled pipes or tubes, which are usually used in pipeline systems for transporting liquids, gases or other fluids. They can be made of a variety of materials, including metals, plastics, composite materials, etc. During the manufacturing process of thin-walled pipes, stretching equipment can help stretch metal strips or metal sheets into the desired tubular shape. Through stretching, the structure of the metal can be changed to obtain the desired pipe shape and size.

[0003] The Chinese patent document with the search announcement number CN218015152U discloses a tooling for the first stretching of thin-walled tubes, which relates to the field of thin-walled tube forming devices, and includes an upper die seat that is lifted and lowered, a fixed lower die seat, and a die sleeve that is floatingly installed between the upper die seat and the lower die seat, a concave die is installed on the upper die seat, a convex die is installed on the lower die seat, the concave die, the convex die, and the die sleeve are coaxially arranged, a through hole for the convex die to enter and exit is formed in the center of the die sleeve, and the die sleeve is connected to the lower die seat through an elastic reset component. When the application is working, a steel sheet is placed on the top of the die sleeve, the concave die on the upper die seat descends, pressing the outer edge of the steel sheet and continuing to descend, the elastic reset component is compressed, and the convex die extends into the concave die, thereby driving the center of the steel sheet to stretch upward and enter the concave die, completing the first stretching of the steel sheet; the upper die seat drives the concave die to move upward, and the elastic reset component rebounds and resets for cyclic processing, which has strong practicality, but the patent does not take into account the problem that it is more troublesome to replace the convex die after long-term use. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a thin-walled tube stretching device, aiming to improve the problem that the structure of some thin-walled tube stretching devices is relatively fixed, resulting in the difficulty in replacing the punch after long-term use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a thin-walled tube stretching equipment, comprising a base plate, a limiting groove is provided inside the base plate, a limiting assembly is provided on the upper surface of the base plate, a mounting plate is provided on the upper surface of the base plate, a concave hole is provided inside the mounting plate, the side wall of the mounting plate is fixedly connected to a fixing frame, a sliding rod is slidably connected to the temporal part of the fixing frame, the side wall of the sliding rod is fixedly connected to a pressing plate, and the side wall of the sliding rod is sleeved with a first spring, one end of the first spring is fixedly connected to the side wall of the pressing plate, and the other end of the first spring is fixedly connected to the side wall of the fixing frame, a clamping plate is slidably connected inside the fixing frame, the side wall of the clamping plate is fixedly connected to one end of the sliding rod, a second spring is fixedly connected between the clamping plates, the side wall of the clamping plate is slidably connected to the inside of the limiting groove, and a punch is fixedly connected to the upper surface of the mounting plate.

[0006] Through the above technical solution, the effect of facilitating replacement of the punch is achieved, and the difficulty of replacement is reduced.

[0007] Furthermore, the limiting assembly includes a limiting column, a side wall of the limiting column is fixedly connected to the side wall of the bottom plate, and the side wall of the limiting column is slidably connected to the inside of the concave hole.

[0008] Through the above technical solution, the effect of initially limiting the mounting plate is achieved.

[0009] Furthermore, a support rod is fixedly connected to the upper surface of the bottom plate, and a slide plate is slidably connected to the side wall of the support rod.

[0010] Through the above technical solution, the effect of guiding the skateboard is achieved.

[0011] Furthermore, a placement plate is fixedly connected between the slide plates, a placement groove is provided inside the placement plate, and an inner side wall of the placement plate is slidably connected to the side wall of the punch.

[0012] Through the above technical solution, the effect of stably placing the steel sheet is achieved.

[0013] Furthermore, a third spring is sleeved on the side wall of the support rod, one end of the third spring is fixedly connected to the side wall of the slide plate, and the other end of the third spring is fixedly connected to the upper surface of the bottom plate.

[0014] Through the above technical solution, the effect of returning the sliding plate to its original position after movement is achieved.

[0015] Furthermore, a top frame is fixedly connected to the upper surface of the support rod, and a concave mold is slidably connected inside the top frame.

[0016] Through the above technical solution, the effect of limiting the die is achieved.

[0017] Furthermore, a hydraulic rod is fixedly connected inside the top frame, and an output end of the hydraulic rod is fixedly connected to the upper surface of the die.

[0018] Through the above technical solution, the effect of driving the die to move is achieved.

[0019] Furthermore, a sliding plate is slidably connected to the inside of the die, a pressure ring is fixedly connected to the lower surface of the die, a telescopic rod is fixedly connected to the inside of the die, one end of the telescopic rod is fixedly connected to the side wall of the sliding plate, a fourth spring is sleeved on the side wall of the telescopic rod, one end of the fourth spring is fixedly connected to the side wall of the sliding plate, and the other end of the sliding plate is fixedly connected to the inside of the die.

[0020] Through the above technical solution, the effect of facilitating the taking of the stretched steel sheet is achieved.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the cooperation among the mounting plate, the concave hole, the fixing frame, the sliding rod, the pressing plate, the first spring, the clamping plate and the second spring achieves the effect of facilitating the replacement of the punch, solves the problem that the structure of some thin-walled tube stretching equipment is relatively fixed, resulting in the troublesome replacement of the punch after long-term use, and improves the replacement efficiency through the above structure.

[0023] 2. In the utility model, the cooperation among the die, the pressure ring, the sliding plate, the telescopic rod and the fourth spring achieves the effect of facilitating material removal, solves the problem that after some thin-walled tube stretching equipment stretches the thin-walled tube, the thin-walled tube will be stuck inside the die and is difficult to remove. The practicality of the equipment is improved through the above structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a thin-walled tube stretching device proposed by the utility model;

[0025] Figure 2 This is a bottom plate structure diagram of a thin-walled tube stretching device proposed by the utility model;

[0026] Figure 3 This is a top frame structure diagram of a thin-walled tube stretching equipment proposed by the utility model.

[0027] Legend:

[0028] 1. Bottom plate; 2. Limiting groove; 3. Limiting column; 4. Mounting plate; 5. Concave hole; 6. Fixed frame; 7. Sliding rod; 8. Pressing plate; 9. First spring; 10. Card plate; 11. Second spring; 12. Punch; 13. Support rod; 14. Sliding plate; 15. Placement plate; 16. Placement groove; 17. Third spring; 18. Top frame; 19. Hydraulic rod; 20. Concave die; 21. Pressing ring; 22. Sliding plate; 23. Telescopic rod; 24. Fourth spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 and Figure 2 , an embodiment of the utility model provides: a thin-walled tube stretching equipment, including a bottom plate 1, a limiting groove 2 is provided inside the bottom plate 1, a limiting assembly is arranged on the upper surface of the bottom plate 1, a mounting plate 4 is provided on the upper surface of the bottom plate 1, a concave hole 5 is provided inside the mounting plate 4, a fixing frame 6 is fixedly connected to the side wall of the mounting plate 4, a sliding rod 7 is slidably connected to the temporal part of the fixing frame 6, a pressing plate 8 is fixedly connected to the side wall of the sliding rod 7, a first spring 9 is sleeved on the side wall of the sliding rod 7, one end of the first spring 9 is fixedly connected to the side wall of the pressing plate 8, and the other end of the first spring 9 is fixedly connected to the side wall of the fixing frame 6, a card plate 10 is slidably connected inside the fixing frame 6, a side wall of the card plate 10 is fixedly connected to one end of the sliding rod 7, a second spring 11 is fixedly connected between the card plates 10, the side wall of the card plate 10 is slidably connected to the inside of the limiting groove 2, a convex mold 12 is fixedly connected to the upper surface of the mounting plate 4, and a limiting assembly includes a limiting column 3, a side wall of the limiting column 3 is fixedly connected to the side wall of the bottom plate 1, and a side wall of the limiting column 3 is slidably connected to the inside of the concave hole 5.

[0031] When the punch 12 needs to be replaced, the operator presses the pressing plate 8 in the middle at the same time. This action causes the slide bar 7 to drive the card plate 10 to slide inward inside the fixed frame 6. In this process, the first spring 9 and the second spring 11 are squeezed and deformed, and then the card plate 10 is pulled out from the inside of the limiting groove 2 to replace the punch 12. When installing a new punch 12, the operator sets the concave hole 5 opened in the new installation plate 4 on the outer wall of the limiting column 3 to ensure the initial positioning of the new punch 12, and then presses the pressing plate 8 again to slide the card plate 10 to the middle of the fixed frame 6. At this time, the first spring 9 and the second spring 11 are squeezed again and shrink. When the card plate 10 slides to the appropriate position, the operator inserts it into the inside of the limiting groove 2. At this time, the pressing plate 8 is released, the first spring 9 and the second spring 11 lose pressure, and begin to reset, pushing the card plate 10 to slide and engage in the inside of the limiting groove 2, thereby fixing the installation plate 4 and the new punch 12.

[0032] Reference Figure 3 The upper surface of the bottom plate 1 is fixedly connected with a support rod 13, and the side wall of the support rod 13 is slidably connected with a slide plate 14. A placement plate 15 is fixedly connected between the slide plates 14. A placement groove 16 is provided inside the placement plate 15. The inner side wall of the placement plate 15 is slidably connected to the side wall of the punch 12. A third spring 17 is sleeved on the side wall of the support rod 13. One end of the third spring 17 is fixedly connected to the side wall of the slide plate 14, and the other end of the third spring 17 is fixedly connected to the upper surface of the bottom plate 1. The upper surface of the support rod 13 is fixedly connected with a top frame 18, and the top frame 18 is slidably connected inside. A die 20 is connected, a hydraulic rod 19 is fixedly connected inside the top frame 18, the output end of the hydraulic rod 19 is fixedly connected to the upper surface of the die 20, a sliding plate 22 is slidably connected inside the die 20, a pressure ring 21 is fixedly connected to the lower surface of the die 20, a telescopic rod 23 is fixedly connected inside the die 20, one end of the telescopic rod 23 is fixedly connected to the side wall of the sliding plate 22, a fourth spring 24 is sleeved on the side wall of the telescopic rod 23, one end of the fourth spring 24 is fixedly connected to the side wall of the sliding plate 22, and the other end of the sliding plate 22 is fixedly connected to the inside of the die 20.

[0033] When using the equipment to stretch thin-walled tubes, first place the steel sheet inside the placement groove 16 to ensure that the steel sheet remains stable during the stretching process. Then start the hydraulic rod 19 to drive the die 20 to move downward. During this process, the pressure ring 21 will press on the top of the steel sheet and drive the placement plate 15 to move downward together. When the placement plate 15 moves downward, it will squeeze the third spring 17 to shrink it. At the same time, the placement plate 15 slides on the outer wall of the punch 12, and the punch 12 pushes the middle part of the steel sheet upward to perform the stretching operation. During the stretching process, the steel sheet will slide upward inside the die 20 and squeeze the sliding plate 22. At this time, the telescopic rod 23 and the fourth spring 24 will be under pressure and then shrink. After the stretching is completed, the hydraulic rod 19 will drive the die 20 to reset. At this time, the third spring 17 and the fourth spring 24 lose pressure and begin to reset, pushing the sliding plate 22 downward, thereby pushing the stretched steel sheet out of the die 20.

[0034] Working principle: When using the equipment to stretch thin-walled tubes, first place the steel sheet inside the placement groove 16, then start the hydraulic rod 19 to drive the die 20 to move downward, so that the pressure ring 21 presses on the top of the steel sheet and drives the placement plate 15 to move downward, squeezes the third spring 17 to make it shrink, and then the placement plate 15 slides on the outer wall of the punch 12, and the punch 12 will lift the middle part of the steel sheet upward to stretch it, and the stretched steel sheet will slide upward inside the die 20 to squeeze the sliding plate 22 upward, so that the telescopic rod 23 and the fourth spring 24 are forced to shrink, and after the stretching is completed, the hydraulic rod 19 drives the die 20 to reset, and the third spring 17 loses pressure and resets, and the fourth spring 24 loses the force of squeezing the steel sheet and resets, and pushes the sliding plate 22 downward to remove the stretched steel sheet from the die 20 is pushed out from the inside, thereby completing the stretching work of the steel sheet. When the punch 12 needs to be replaced, the pressing plate 8 is pressed inward at the same time, so that the slide bar 7 drives the card plate 10 to slide inward inside the fixed frame 6, and the first spring 9 and the second spring 11 are squeezed, and the card plate 10 is pulled out from the inside of the limiting groove 2 to replace the punch 12. When installing a new punch 12, the concave hole 5 opened in the new mounting plate 4 is sleeved on the outer wall of the limiting column 3, and then the pressing plate 8 is pressed again to make the card plate 10 slide to the middle part of the fixed frame 6, so that the first spring 9 and the second spring 11 are contracted, and then the card plate 10 is inserted into the inside of the limiting groove 2 again. At this time, the pressing plate 8 is released, the first spring 9 and the second spring 11 lose pressure and start to reset, and the card plate 10 is stuck in the inside of the limiting groove 2, and the mounting plate 4 is fixed, thereby completing the replacement of the punch 12.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thin-walled tube stretching device, comprising a bottom plate (1), characterized in that: A limiting groove (2) is provided inside the bottom plate (1), a limiting assembly is provided on the upper surface of the bottom plate (1), a mounting plate (4) is provided on the upper surface of the bottom plate (1), a recessed hole (5) is provided inside the mounting plate (4), a fixing frame (6) is fixedly connected to the side wall of the mounting plate (4), a sliding rod (7) is slidably connected to the temporal part of the fixing frame (6), a pressing plate (8) is fixedly connected to the side wall of the sliding rod (7), a first spring (9) is sleeved on the side wall of the sliding rod (7), and the first spring ( 9) one end is fixedly connected to the side wall of the pressing plate (8), the other end of the first spring (9) is fixedly connected to the side wall of the fixing frame (6), a card plate (10) is slidably connected inside the fixing frame (6), the side wall of the card plate (10) is fixedly connected to one end of the sliding rod (7), a second spring (11) is fixedly connected between the card plates (10), the side wall of the card plate (10) is slidably connected inside the limiting groove (2), and a punch (12) is fixedly connected to the upper surface of the mounting plate (4).

2. The thin-wall tube stretching equipment according to claim 1, characterized in that: The limiting assembly comprises a limiting column (3), the side wall of the limiting column (3) being fixedly connected to the side wall of the bottom plate (1), and the side wall of the limiting column (3) being slidably connected inside the concave hole (5).

3. The thin-wall tube stretching device according to claim 1, characterized in that: A support rod (13) is fixedly connected to the upper surface of the bottom plate (1), and a slide plate (14) is slidably connected to the side wall of the support rod (13).

4. The thin-wall tube stretching device according to claim 3, characterized in that: A placement plate (15) is fixedly connected between the slide plates (14), a placement groove (16) is provided inside the placement plate (15), and the inner side wall of the placement plate (15) is slidably connected to the side wall of the punch (12).

5. The thin-wall tube stretching device according to claim 3, characterized in that: A third spring (17) is sleeved on the side wall of the support rod (13); one end of the third spring (17) is fixedly connected to the side wall of the slide plate (14); and the other end of the third spring (17) is fixedly connected to the upper surface of the bottom plate (1).

6. The thin-wall tube stretching device according to claim 5, characterized in that: The upper surface of the support rod (13) is fixedly connected to a top frame (18), and the interior of the top frame (18) is slidably connected to a concave mold (20).

7. The thin-wall tube stretching equipment according to claim 6, characterized in that: A hydraulic rod (19) is fixedly connected inside the top frame (18), and an output end of the hydraulic rod (19) is fixedly connected to the upper surface of the die (20).

8. The thin-wall tube stretching device according to claim 7, characterized in that: A sliding plate (22) is slidably connected inside the die (20), a pressure ring (21) is fixedly connected to the lower surface of the die (20), a telescopic rod (23) is fixedly connected inside the die (20), one end of the telescopic rod (23) is fixedly connected to the side wall of the sliding plate (22), a fourth spring (24) is sleeved on the side wall of the telescopic rod (23), one end of the fourth spring (24) is fixedly connected to the side wall of the sliding plate (22), and the other end of the sliding plate (22) is fixedly connected to the inside of the die (20).

Images