Square tube opening expansion forming equipment

Abstract

The utility model relates to the technical field of square tube opening expansion forming, and discloses square tube opening expansion forming equipment which comprises a machine body, a hydraulic station installed on the rear side of the machine body, an opening expansion forming mechanism installed on the top close to one end of the machine body, and a pressing mechanism installed on the top close to the middle of the machine body. The top of the machine body is provided with a protective cover covering the opening expanding forming mechanism and the pressing mechanism, and the top, close to the other end of the machine body, of the machine body is provided with a conveying mechanism capable of conveying the square pipe to the position opposite to the opening expanding forming mechanism through the pressing mechanism. The conveying mechanism conveys an unformed square tube to the position opposite to the forming die, the square tube is pressed through the pressing mechanism, then the forming die in the opening expansion forming mechanism is pushed by the pushing oil cylinder to enter an end opening of the square tube to conduct opening expansion forming, after opening expansion forming is completed, the pressing mechanism does not press the square tube any more, and the square tube is not pressed by the pressing mechanism. In conclusion, the square tube can be conveyed on the machine body, and the opening expansion forming speed of the square tube is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to square tube mouth forming technical field, concretely is a square tube mouth forming equipment. BACKGROUND

[0002] In prior art, square tube end mouth expanding process is the processing technology of expanding the end head of small diameter pipe into the end head of large diameter pipe.

[0003] Prior art such as Chinese patent (application number: 201820555070.7) discloses a metal pipe end head expanding device, which can realize automatic pressing and automatic expanding processing of metal pipe, has high automation degree, greatly reduces the labor intensity of operating personnel, improves production efficiency, has reasonable device structure design, is convenient to use, reliable in performance, can guarantee the safety of operating personnel and has high practicability.

[0004] However, the above patent still needs workers to carry the square tube to the pressing cylinder below for expanding when using, and the square tube also needs to be manually unloaded after completion, which is time-consuming and laborious and low in efficiency, therefore, improvement is needed. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of prior art, the utility model provides a square tube mouth forming equipment, which solves the problems mentioned in the background art.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme:

[0007] A square tube mouth forming equipment, comprising a machine body, a hydraulic station is installed on the rear side of the machine body, a mouth forming mechanism is installed on the top of the machine body near one end thereof, a pressing mechanism is installed on the top of the machine body near the middle thereof, a protective cover is arranged on the top of the machine body and covers the mouth forming mechanism and the pressing mechanism, and a conveying mechanism capable of conveying the square tube to the pressing mechanism and the mouth forming mechanism arranged opposite to each other is installed on the top of the machine body near the other end thereof.

[0008] In the utility model, specifically, the mouth forming mechanism comprises a bracket installed on the top of the machine body, a push oil cylinder powered by the hydraulic station is installed horizontally on the outer side of the bracket, a mold mounting seat is installed on the free end of the piston rod of the push oil cylinder, the mold mounting seat is slidably installed on the top of the machine body, a forming mold is installed on the side of the mold mounting seat close to the pressing mechanism, and the forming mold is arranged in the shape of a four-pyramid platform.

[0009] In order to realize the guidance of the mold mounting seat, two symmetrical guide rails are fixed on the top of the machine body, and two symmetrical sliding sleeves are fixed on the bottom of the mold mounting seat and slidably matched with the guide rails.

[0010] The utility model discloses a specific, the pressing mechanism includes the support frame of installation at the top of the machine body, the vertical installation of support frame top is provided with the pressing oil cylinder by the power of hydraulic station, the lower end of piston rod of pressing oil cylinder inserts into the support frame and is fixed with the mounting plate, the bottom installation of mounting plate has upper module, the bottom of support frame is fixed with the limit block, and the detachable lower module is installed to the top of limit block, the interface of upper module and lower module all are triangular, and the opening is opposite arrangement.

[0011] In order to realize the orientation of upper module, the vertical guide pillar is fixed on the top of mounting plate, and the guide hole that is slidably connected with the guide pillar is formed on the top of support frame.

[0012] In order to realize the location of upper module and lower module, the vertical limit rod is fixed on the top of limit block, and the limit block that is passed through the limit rod is formed on the lower module, and the positioning slot that is inserted into the upper end of limit rod is formed on the bottom of upper module.

[0013] In order to limit the horizontal movement of pipe, the limit oil cylinder that is provided with power by hydraulic station is further fixed on the side of support frame, the lower end of piston rod of limit oil cylinder is fixed with the baffle, and the baffle is located between forming die and upper module and is abutted on the side of upper module.

[0014] In the utility model, the specific, the conveying mechanism includes a plurality of adjusting oil cylinders that are installed in the machine body, and the adjusting oil cylinders are provided with power by hydraulic station, the upper end of piston rod of adjusting oil cylinder is fixed with the U-shaped conveying frame that is stretched out of the top of machine body, the nylon roller is arranged in the conveying frame, the nylon roller is composed of two transversely arranged conveying circular tables, the smaller end of two conveying circular tables is fixed, the motor is installed on the outer side of one side plate of conveying frame, the output shaft of motor is rotatably stretched into the inner side of conveying frame, one end of nylon roller is fixed with the output shaft of motor, and the other end is rotatably installed in the inner side of the other side plate of conveying frame.

[0015] Compared with the prior art, the conveying mechanism conveys the unformed square pipe to the opposite arrangement with the forming die, the square pipe is pressed by the pressing mechanism, then the forming die in the expanding opening forming mechanism enters the square pipe port by the pushing of pushing oil cylinder, and the expanding opening forming is carried out, after completion, the pressing mechanism no longer presses the square pipe, and the formed square pipe can slide off the machine body through the conveying mechanism, so that the square pipe can be conveyed on the machine body, and the rate of square pipe expanding opening forming is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a specific, the pressing mechanism includes the support frame of installation at the top of the machine body, the vertical installation of support frame top is provided with the pressing oil cylinder by the power of hydraulic station, the lower end of piston rod of pressing oil cylinder inserts into the support frame and is fixed with the mounting plate, the bottom installation of mounting plate has upper module, the bottom of support frame is fixed with the limit block, and the detachable lower module is installed to the top of limit block, the interface of upper module and lower module all are triangular, and the opening is opposite arrangement. Figure One ;

[0017] Figure 2 The utility model discloses a specific, the pressing mechanism includes the support frame of installation at the top of the machine body, the vertical installation of support frame top is provided with the pressing oil cylinder by the power of hydraulic station, the lower end of piston rod of pressing oil cylinder inserts into the support frame and is fixed with the mounting plate, the bottom installation of mounting plate has upper module, the bottom of support frame is fixed with the limit block, and the detachable lower module is installed to the top of limit block, the interface of upper module and lower module all are triangular, and the opening is opposite arrangement. Figure Two (protective cover is not drawn);

[0018] Figure 3 The three-dimensional representation of this utility model Figure Three (The protective shield is not shown);

[0019] Figure 4 The three-dimensional expansion forming mechanism of this utility model Figure One ;

[0020] Figure 5 The three-dimensional expansion forming mechanism of this utility model Figure Two ;

[0021] Figure 6 The three-dimensional expansion forming mechanism of this utility model Figure Three ;

[0022] Figure 7 This is a perspective view of the clamping mechanism of this utility model;

[0023] Figure 8 This is a perspective view of the conveying mechanism of this utility model installed on the machine body;

[0024] Figure 9 The three-dimensional conveying mechanism of this utility model Figure One ;

[0025] Figure 10 The three-dimensional conveying mechanism of this utility model Figure Two .

[0026] Reference numerals: 1. Machine body; 2. Hydraulic station; 3. Protective cover; 4. Support; 5. Pushing cylinder; 6. Mold mounting base; 7. Forming mold; 8. Guide rail; 9. Sliding sleeve; 10. Support frame; 11. Clamping cylinder; 12. Mounting plate; 13. Upper module; 14. Limiting block; 15. Lower module; 16. Guide column; 17. Limiting rod; 18. Positioning groove; 19. Limiting cylinder; 20. Baffle; 21. Adjusting cylinder; 22. Conveyor frame; 23. Nylon roller; 24. Motor; M, Square tube. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] like Figures 1-10 As shown, this utility model provides a square tube expansion forming device, including a machine body 1, a hydraulic station 2 installed on the rear side of the machine body 1, an expansion forming mechanism installed on the top of the machine body 1 near one end, a pressing mechanism installed on the top of the machine body 1 near the middle, a protective cover 3 provided on the top of the machine body 1 covering the expansion forming mechanism and the pressing mechanism, and a conveying mechanism installed on the top of the machine body 1 near the other end, which can convey the square tube M through the pressing mechanism to the conveying mechanism arranged opposite to the expansion forming mechanism.

[0029] Specifically, the expansion forming mechanism of this utility model includes a bracket 4 installed on the top of the machine body 1. A push cylinder 5 powered by a hydraulic station 2 is horizontally installed on the outside of the bracket 4. A mold mounting seat 6 is installed on the free end of the piston rod of the push cylinder. The bottom of the mold mounting seat 6 is slidably installed on the top of the machine body 1. A forming mold 7 is installed on the side of the mold mounting seat 6 near the pressing mechanism. The forming mold 7 is set in the shape of a frustum of a four-sided pyramid.

[0030] In order to guide the mold mounting base 6, two symmetrically arranged guide rails 8 are fixed on the top of the machine body 1, and two symmetrically arranged sliding sleeves 9 are fixed on the bottom of the mold mounting base 6. The sliding sleeves 9 slide in cooperation with the guide rails 8.

[0031] Specifically, in this utility model, the clamping mechanism includes a support frame 10 installed on the top of the machine body 1. A clamping cylinder 11 powered by a hydraulic station 2 is vertically installed on the top of the support frame 10. The lower end of the piston rod of the clamping cylinder 11 extends into the support frame 10 and is fixed with a mounting plate 12. An upper module 13 is installed at the bottom of the mounting plate 12. A limit block 14 is fixed at the bottom of the support frame 10. A detachable lower module 15 is installed on the top of the limit block 14. The interfaces of the upper module 13 and the lower module 15 are triangular and their openings are arranged opposite each other.

[0032] In order to guide the upper module 13, a vertical guide post 16 is fixed on the top of the mounting plate 12, and a guide hole is provided on the top of the support frame 10 to slide with the guide post 16.

[0033] In order to limit the upper module 13 and the lower module 15, several limiting rods 17 are vertically fixed on the top of the limiting block 14, several limiting blocks 14 are opened on the lower module 15 for the limiting rods 17 to pass through, and several positioning grooves 18 are opened at the bottom of the upper module 13 for the upper end of the limiting rods 17 to be inserted.

[0034] To limit the horizontal movement of the square tube M, a limiting cylinder 19 powered by a hydraulic station 2 is fixed to the side of the support frame 10. A baffle 20 is fixed to the lower end of the piston rod of the limiting cylinder 19. The baffle 20 is located between the forming mold 7 and the upper module 13 and abuts against the side of the upper module 13.

[0035] Specifically, in this utility model, the conveying mechanism includes several adjusting cylinders 21 installed inside the machine body 1. The adjusting cylinders 21 are powered by a hydraulic station 2. The upper end of the piston rod of the adjusting cylinder 21 extends out of the top of the machine body 1 and is fixed to a U-shaped conveying frame 22. A nylon roller 23 is installed inside the conveying frame 22. The nylon roller 23 is composed of two horizontally placed conveying truncated cones. The smaller end of the two conveying truncated cones is fixed together. A motor 24 is installed on the outer side of one side plate of the conveying frame 22. The output shaft of the motor 24 rotates and extends into the inner side of the conveying frame 22. One end of the nylon roller 23 is fixed to the output shaft of the motor 24, and the other end is rotated and installed on the inner side of the other side plate of the conveying frame 22.

[0036] The working principle of this utility model is described in detail below: The square tube M is placed on the conveying mechanism. The motor 24 is started by connecting to an external power source, driving the nylon roller 23 to rotate, conveying the unformed square tube M to a position opposite to the forming mold 7. During this process, the limiting cylinder 19 is activated, causing the baffle 20 to move downwards until the square tube M abuts against the baffle 20. Then, the limiting cylinder 19 drives the baffle 20 upwards, no longer limiting the square tube M. The pressing cylinder 11 is activated, causing the upper module 13 to move downwards. During this process, the upper end of the limiting rod 17 is inserted into the positioning groove 18. After the upper module 13 and the lower module 15 are closed, the square tube M is pressed. Then, the forming mold 7 in the expansion forming mechanism is pushed by the pushing cylinder 5. The mold mounting seat 6 drives the sliding sleeve 9 to slide along the guide rail 8 until the forming mold 7 enters the end of the square tube M, squeezes the end of the square tube M, and performs expansion forming. After completion, the pushing cylinder 5 drives the forming mold 7 to return to its original position. The pressing mechanism drives the upper module 13 to no longer press the square tube M. The formed square tube M can slide away from the machine body 1 through the conveying mechanism. In summary, the square tube M can be conveyed on the machine body 1, which improves the expansion forming rate of the square tube M.

[0037] Compared with the prior art, this utility model has the following advantages: the conveying mechanism conveys the unformed square tube to a position opposite to the forming mold, and the pressing mechanism presses the square tube. Then, the forming mold in the expansion forming mechanism is pushed into the end of the square tube by the pushing cylinder 5 to perform expansion forming. After completion, the pressing mechanism no longer presses the square tube, and the formed square tube can slide away from the machine body 1 through the conveying mechanism. In summary, the square tube can be conveyed on the machine body 1, which improves the speed of square tube expansion forming.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A square tube expansion forming device, comprising a machine body, wherein a hydraulic station is installed on the rear side of the machine body, characterized in that: The top of the machine body near one end is equipped with an expansion forming mechanism, and the top of the machine body near the middle is equipped with a pressing mechanism. A protective cover is provided on the top of the machine body to cover the expansion forming mechanism and the pressing mechanism. The top of the machine body near the other end is equipped with a conveying mechanism that can convey the square tube through the pressing mechanism to a conveying mechanism arranged opposite to the expansion forming mechanism. The expansion forming mechanism includes a bracket installed on the top of the machine body. A push cylinder powered by a hydraulic station is horizontally installed on the outside of the bracket. A mold mounting seat is installed on the free end of the piston rod of the push cylinder. The bottom of the mold mounting seat is slidably installed on the top of the machine body. A forming mold is installed on the side of the mold mounting seat near the pressing mechanism. The clamping mechanism includes a support frame installed on the top of the machine body. A clamping cylinder powered by a hydraulic station is vertically installed on the top of the support frame. The lower end of the piston rod of the clamping cylinder extends into the support frame and is fixed with a mounting plate. An upper module is installed at the bottom of the mounting plate. A limit block is fixed at the bottom of the support frame. A detachable lower module is installed on the top of the limit block. The interface between the upper module and the lower module is triangular and the openings are arranged opposite each other. The conveying mechanism includes several adjusting cylinders installed inside the machine body. The adjusting cylinders are powered by a hydraulic station. The upper end of the piston rod of the adjusting cylinder extends out of the top of the machine body and is fixed to a U-shaped conveying frame. Nylon rollers are installed inside the conveying frame. A motor is installed on the outer side of one side plate of the conveying frame. The output shaft of the motor rotates and extends into the inner side of the conveying frame. One end of the nylon roller is fixed to the output shaft of the motor, and the other end is rotatably installed on the inner side of the other side plate of the conveying frame.

2. The square tube expansion forming equipment according to claim 1, characterized in that: The top of the machine body has two symmetrically arranged guide rails, and the bottom of the mold mounting base has two symmetrically arranged sliding sleeves, which slide in cooperation with the guide rails.

3. The square tube expansion forming equipment according to claim 2, characterized in that: The molding die is shaped like a frustum of a square pyramid.

4. The square tube expansion forming equipment according to claim 3, characterized in that: The mounting plate has a vertical guide post fixed to its top, and a guide hole is provided on the top of the support frame to slide with the guide post.

5. The square tube expansion forming equipment according to claim 4, characterized in that: The top of the limiting block is vertically fixed with several limiting rods, and the lower module has several limiting blocks for the limiting rods to pass through. The bottom of the upper module has several positioning slots for the upper end of the limiting rods to be inserted.

6. The square tube expansion forming equipment according to claim 5, characterized in that: The support frame is also fixed with a limit cylinder powered by a hydraulic station. The lower end of the piston rod of the limit cylinder is fixed with a baffle. The baffle is located between the forming mold and the upper module and abuts against the side of the upper module.

7. The square tube expansion forming equipment according to claim 6, characterized in that: The nylon roller consists of two horizontally placed conveying truncated cones, with the smaller end of the two conveying truncated cones fixed together.

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