Auxiliary straightening device for drawing oblate pipe

Abstract

The utility model discloses an oblate pipe drawing auxiliary centralizing device which comprises a lower bottom plate and an upper bottom plate which are arranged in parallel, a spring assembly is arranged between the lower bottom plate and the upper bottom plate, the lower bottom plate and the upper bottom plate are connected through two adjusting screws, and at least three width limiting wheels are arranged on the surface of the upper bottom plate. Two bottom support limiting wheels are arranged among the at least three width limiting wheels, and the width limiting wheels and the bottom support limiting wheels are matched to form a limiting channel. According to the utility model, the linear posture of the pipe during drawing can be ensured, and the drawing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-precision connector manufacturing, and particularly relates to an auxiliary straightening device for drawing flat-round tubes. Background Art

[0002] Tpy-c is one of the mainstream interfaces at present. Its end is a flat-round metal part. During its processing, a round tube needs to be drawn multiple times to form a flat-round structure. During the drawing process, it is necessary to manually insert the pipe into the drawing die of the drawing machine, and then pass it through and connect it to the chuck of the drawing machine.

[0003] During the threading process, since the pipe has a certain length and is relatively thin, when one end is clamped and fixed, the other end will show a certain amount of bending and deflection. And during the threading process, since it is impossible for manual operation to ensure that the pipe enters the drawing die along the axis, problems such as the pipe being bent by collision are likely to occur. During the subsequent drawing process, the stress is uneven, ultimately resulting in a decline in the quality of the finished product and an increase in the waste rate of the pipe. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide an auxiliary straightening device for drawing flat-round tubes, which can ensure the straight posture of the pipe during drawing and improve the drawing quality.

[0005] To solve the above technical problem, the utility model provides an auxiliary straightening device for drawing flat-round tubes, which includes a lower bottom plate and an upper bottom plate arranged in parallel. A spring is arranged between the lower bottom plate and the upper bottom plate and is connected by two adjusting screws. At least three width limiting wheels are arranged on the surface of the upper bottom plate. Two bottom support limiting wheels are arranged between at least three width limiting wheels. The width limiting wheels and the bottom support limiting wheels cooperate to form a limiting channel. The two adjusting screws are respectively arranged on both sides of the width direction of the limiting channel.

[0006] Further, the number of the springs is 4, and they are evenly distributed between the lower bottom plate and the upper bottom plate.

[0007] Further, both of the two adjusting screws pass through the inside of the spring and are threadedly connected to the lower bottom plate.

[0008] Further, guide columns are also arranged in the other two springs. One end of the guide column is fixedly connected to the bottom of the upper bottom plate, and the other end is provided with a guide hole on the corresponding lower bottom plate and is inserted into the guide hole.

[0009] Further, an installation groove is arranged on the upper bottom plate corresponding to the bottom support limiting wheel. Two shaft holes penetrating through the two side walls of the installation groove are opened on the side edge of the upper bottom plate. An installation shaft is arranged in the shaft hole. The installation shaft axially connects the bottom support limiting wheel and arranges it in the installation groove. The arrangement direction of the installation shaft is the same as the width direction of the limiting channel.

[0010] Further, threaded posts are provided at the bottom of the lower base plate, and threaded sleeves are provided on the threaded posts. The threaded sleeves are fixed on the equipment platform at the feeding end of the drawing die.

[0011] Further, a tightening bolt is provided on the surface of the threaded sleeve, and the tightening bolt is used to limit the relative position of the threaded post and the threaded sleeve.

[0012] Further, the number of the width limiting wheels is 4.

[0013] Advantages of the present utility model:

[0014] 1. A limiting channel is formed by the cooperation of the width limiting wheels and the bottom support limiting wheels, which can limit the positions of both sides and the bottom of the pipe when the pipe is manually threaded. The limited pipe is not easily bent, and has a positioning and protecting effect. During the use process, it also has a certain straightening effect, improving the quality of drawing.

[0015] 2. The cooperation of the upper base plate, the lower base plate, the spring and the adjusting screws enables the installation height of the upper base plate to be adjusted, that is, the height of the limiting channel can be adjusted, meeting the alignment effect and being convenient for installation and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic top view structure diagram of the present utility model;

[0018] Figure 3 is a schematic diagram of the present utility model along the length direction of the limiting channel;

[0019] Figure 4 is a schematic diagram of the present utility model installed on the drawing equipment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments given are not intended to limit the present utility model.

[0021] Referring to Figures 1 to 3 as shown, an embodiment of the oval pipe drawing auxiliary straightening device of the present utility model includes a lower base plate 1 and an upper base plate 2 arranged in parallel. A spring 3 is arranged between the lower base plate and the upper base plate and connected by two adjusting screws 4. At least three width limiting wheels 5 are arranged on the surface of the upper base plate. Two bottom support limiting wheels 6 are arranged between at least three width limiting wheels. The width limiting wheels and the bottom support limiting wheels cooperate to form a limiting channel 7. The two adjusting screws are respectively arranged on both sides in the width direction of the limiting channel.

[0022] The lower bottom plate is used to be fixed on the equipment platform at the feeding end of the drawing die. The upper bottom plate is arranged on the lower bottom plate by the reaction force of two adjusting screws and springs. Specifically, the number of springs is 4, and they are evenly distributed between the lower bottom plate and the upper bottom plate, so that there is a stable acting force between the upper bottom plate and the lower bottom plate. When the two adjusting screws pass through the upper bottom plate and are threadedly connected to the lower bottom plate, the relative position between the lower bottom plate and the upper bottom plate can be adjusted. By rotating the two adjusting screws, the upper bottom plate can move up and down, so as to adjust the setting height of the limiting channel and align it with the axis of the central hole of the drawing die.

[0023] Subsequently, the pipe 112 is manually placed in the limiting channel, so that the pipe is limited by the bottom support limiting wheel and the width limiting wheel, that is, both sides and the bottom of the pipe are restricted. Subsequently, the end of the pipe is pushed towards the drawing die. During the movement, the bottom support limiting wheel and the width limiting wheel also slide along with it, reducing the friction force and avoiding leaving scratches on the surface of the pipe. After the threading is completed, the drawing can be carried out. During the drawing process, the width limiting wheel can also play a role in supporting and correcting, improving the drawing quality to a certain extent.

[0024] Based on this, the number of the above-mentioned width limiting wheels is preferably 4. The 4 width limiting wheels are distributed in pairs on both sides of the pipe, and the positioning and correcting effects are better.

[0025] In order to ensure the installation effect of the spring and the stability of the acting force application during height adjustment, the two adjusting screws are designed to pass through the inside of the spring and then be threadedly connected to the lower bottom plate. Guide posts 8 are also arranged in the other two springs. One end of the guide post is fixedly connected to the bottom of the upper bottom plate, and the other end is provided with a guide hole on the corresponding lower bottom plate and is inserted into the guide hole, so that the spring will not directly fall off from the side. During assembly, the operation is convenient. During adjustment, due to the guidance, the adjustment accuracy effect is better.

[0026] The rotation direction of the above-mentioned bottom support limiting wheel is consistent with the length direction of the limiting channel. When it is installed, if it is directly installed on the surface of the upper bottom plate, it needs to be fixed by an installation bracket, the structure is complex, and the height of the limiting channel will be lifted, and the installation height of the width limiting wheel will also be too high, which is not conducive to assembly and use. Therefore, an installation groove 9 is opened on the upper bottom plate corresponding to the bottom support limiting wheel, and two shaft holes penetrating the two side walls of the installation groove are opened on the side edge of the upper bottom plate. An installation shaft 10 is arranged in the shaft hole, and the installation shaft axially connects the bottom support limiting wheel in the installation groove. The bottom support limiting wheel protrudes partially above the surface of the upper bottom plate to prevent the pipe from contacting the surface of the upper bottom plate.

[0027] Since the auxiliary straightening device is installed on the existing equipment for use, if it is directly welded and fixed, it is not easy to remove, which will affect the maintenance. Therefore, threaded posts 11 are provided at the bottom of the lower base plate, and threaded sleeves 12 are provided on the threaded posts. The threaded sleeves are fixed on the equipment platform 111 at the feeding end of the drawing die 113. Refer to Figure 3 and 4 As shown, the fixation is achieved by screwing the threaded posts into the threaded sleeves, and the threaded sleeves can be welded to the equipment platform, so that the auxiliary straightening device can be quickly removed, making the maintenance more convenient.

[0028] After the threaded posts and threaded sleeves are provided, the rough adjustment of the height position of the auxiliary straightening device can be realized. After adjusting the approximate position, the tightening bolt 13 provided on the surface of the threaded sleeve is tightened. The tightening bolt extends into the threaded sleeve and abuts against and tightens the threaded post, so that the threaded post cannot move, that is, it plays a fixing role. Subsequently, according to the height of the drawing die, the position of the upper base plate is adjusted by two adjusting screws to ensure the height of the limiting channel, so that the pipe can pass through the drawing die smoothly and be connected to the drawing chuck of the drawing equipment at the same height.

[0029] The above-described embodiments are only preferred embodiments cited to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. An auxiliary straightening device for drawing flat-round tubes, characterized in that, It includes a lower bottom plate and an upper bottom plate which are arranged in parallel. A spring is arranged between the lower bottom plate and the upper bottom plate and they are connected by two adjusting screws. At least three width limiting wheels are arranged on the surface of the upper bottom plate. Two bottom support limiting wheels are arranged between at least three width limiting wheels. The width limiting wheels and the bottom support limiting wheels cooperate to form a limiting channel. The two adjusting screws are respectively arranged on both sides in the width direction of the limiting channel.

2. The oval tube drawing auxiliary alignment device according to claim 1, characterized in that, The number of the springs is 4, and they are evenly distributed between the lower bottom plate and the upper bottom plate.

3. The oval tube drawing auxiliary alignment device according to claim 2, characterized in that, Both of the two adjusting screws pass through the inside of the spring and are threadedly connected to the lower bottom plate.

4. The oval tube drawing auxiliary straightening device according to claim 3, characterized in that, Guide posts are also arranged in the other two springs. One end of each guide post is fixedly connected to the bottom of the upper bottom plate, and the other end is provided with a guide hole on the corresponding lower bottom plate and penetrates into the guide hole.

5. The oval tube drawing auxiliary straightening device according to claim 1, characterized in that, An installation groove is arranged on the upper bottom plate corresponding to the bottom support limiting wheel. Two shaft holes penetrating through the two side walls of the installation groove are opened on the side edge of the upper bottom plate. An installation shaft is arranged in the shaft holes. The installation shaft axially connects the bottom support limiting wheel and arranges it in the installation groove. The arrangement direction of the installation shaft is consistent with the width direction of the limiting channel.

6. The oval tube drawing auxiliary straightening device according to claim 1, characterized in that, Threaded posts are arranged at the bottom of the lower bottom plate. Threaded sleeves are arranged on the threaded posts. The threaded sleeves are fixed on the equipment platform at the feeding end of the drawing die.

7. The oval tube drawing auxiliary straightening device according to claim 6, characterized in that, Tightening bolts are arranged on the surface of the threaded sleeves. The tightening bolts are used to limit the relative positions of the threaded posts and the threaded sleeves.

8. The oval tube drawing auxiliary straightening device according to claim 1, characterized in that, The number of the width limiting wheels is 4.

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