Automatic feeding core rod mold penetrating device of precise steel pipe drawing machine

Abstract

The utility model relates to the field of precision steel pipe production equipment, in particular to an automatic feeding core rod penetrating die device of a precision steel pipe drawing machine, which comprises a core rod penetrating die main body, and is characterized by comprising a feeding main body, a mounting frame and a plurality of core rod penetrating die main bodies, the multiple core penetrating rod mold bodies are connected with the mounting frame through the mounting assemblies, the mounting blocks and the clamping blocks are arranged, the two clamping blocks move in the direction close to the connecting block till the two clamping blocks completely enter the connecting block, at the moment, the fixing plate loses limitation, the fixing plate moves in the direction away from the mounting frame, and therefore the core penetrating rod mold bodies are fixed. The mounting block moves in the direction away from the core rod penetrating die body through movement of the fixing plate, at the moment, the core rod penetrating die body can be detached, the structure is simple, operation is easy, and replacement and maintenance of the core rod penetrating die body are more convenient.

Description

Technical Field

[0001] This utility model relates to the field of precision steel pipe production equipment, and in particular to an automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine. Background Technology

[0002] The automatic feeding mandrel die device for precision steel pipe drawing machines is an innovative piece of equipment in the field of precision steel pipe drawing production technology. It aims to improve production efficiency, reduce labor intensity, and ensure the accuracy and stability of the drawing process. The mandrel die is a mold with a specific shape and size, which is usually used to guide or support the movement and positioning of the workpiece during the processing.

[0003] In existing automatic feeding and mandrel die devices for precision steel pipe drawing machines, there are typically a feeding rack, a placement rack, and a limiting body. The limiting body usually consists of a motor, a drive rod, and a feeding plate. Multiple arc-shaped limiting grooves are arranged on the feeding plate. During use, the precision steel pipe is usually placed on the placement rack, which is typically tilted upwards. The precision steel pipe will then roll onto the feeding plate. At this point, the motor is started, driving the drive rod to rotate. The rotation of the drive rod causes the feeding plate to rotate, and the precision steel pipe on the feeding plate eventually falls onto the feeding rack due to gravity. This completes the feeding process. The transmission equipment on one side of the frame feeds and transfers precision steel pipes. The transmission device is usually a cylinder and a push plate. The cylinder pushes the push plate to transfer the precision steel pipe to the inside of the mandrel mold for processing. The mandrel mold is usually fixed inside the mounting frame. However, in the current equipment, the mandrel mold is usually welded inside the mounting frame. During the drawing process, the mandrel mold will experience wear. After long-term use, the mandrel mold needs to be maintained. However, because the mandrel mold is usually welded inside the mounting frame, the overall maintenance and replacement is relatively troublesome. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic feeding mandrel die device for a precision steel pipe drawing machine, comprising a feeding body, a mounting frame, and multiple mandrel die bodies, wherein the multiple mandrel die bodies are disposed inside the mounting frame, and the multiple mandrel die bodies are connected to the mounting frame through mounting components;

[0006] The mounting assembly includes a mounting block, a locking block, a fixing plate, and a connecting block. The bottom end of the mounting block extends into the interior of the mounting frame. Multiple guide grooves are provided on one side of the mounting block. The end of the mounting block near the mounting frame extends into the interior of the core-piercing rod mold body. One side of the fixing plate is fixedly connected to one side of the mounting block. The bottom end of the connecting block penetrates the fixing plate and is fixedly connected to the upper end of the mounting frame. Two locking blocks are provided, and both locking blocks extend into the interior of the connecting block. A spring is fixedly connected to the end of each locking block near the connecting block. One end of each spring is fixedly connected to the inner sidewall of the connecting block. The ends of each locking block away from the two springs are both arc-shaped.

[0007] Preferably, one side of the feeding body is provided with multiple limiting plates and a driving body for synchronously driving the multiple limiting bodies. Multiple limiting bodies are arranged opposite to each other on the multiple limiting plates. One side of the multiple limiting bodies is synchronously controlled through a connecting body. A cylinder is also installed at the upper end of the feeding body. A push plate is fixedly connected to the output end of the cylinder.

[0008] Preferably, the limiting body includes a limiting block, a locking post, and a fixing frame. There are two limiting blocks, each movably disposed within a sliding groove on the fixing frame. The two limiting blocks are arranged opposite each other, and their adjacent sides are both arc-shaped. There are multiple locking posts, and each of the two limiting blocks has multiple locking holes on one side for limiting the multiple locking posts. Each locking post has a second spring on its outer side wall away from the multiple locking holes. One end of each second spring is fixedly connected to one side of the fixing frame, and the end of each second spring away from the fixing frame is fixedly connected to one side of the connecting body.

[0009] Preferably, the connecting body includes a connecting plate and a fixing block. There are two fixing blocks, one side of each fixing block is fixedly connected to one side of the connecting plate. One side of the locking post is fixedly connected to the connecting plate on one side of the two fixing blocks. One end of the second spring is fixedly connected to one side of the connecting plate.

[0010] Preferably, the driving body includes a motor and a driving rod. The motor is installed above the feeding body, and the output end of the motor is fixedly connected to one end of the driving rod. The end of the driving rod away from the motor is fixedly inserted through the limiting plate.

[0011] Preferably, a placement body is fixedly installed on one side of the feeding body. The placement body includes a placement frame and a locking assembly. One side of the placement frame is fixedly connected to one side of the feeding body. The upper end of the placement frame is inclined. The locking assembly is installed on the placement frame.

[0012] Preferably, the engaging assembly includes a base, a second cylinder, a mounting plate, and a blocking plate. The base is fixedly installed on the mounting plate, the second cylinder is fixedly mounted on the base, and the output end of the second cylinder is fixedly connected to the bottom end of the mounting plate. Two blocking plates are provided, and the ends of the two blocking plates are fixedly connected to the upper end of the mounting plate.

[0013] This utility model has the following beneficial effects:

[0014] 1. By setting up mounting blocks and locking blocks, and moving the two locking blocks towards the connecting block until they are fully inserted into the connecting block, the fixing plate will lose its restraint and move away from the mounting frame. The movement of the fixing plate will cause the mounting block to move away from the core rod mold body, thus enabling the disassembly of the core rod mold body. The structure is simple and the operation is easy, making the replacement and maintenance of the core rod mold body more convenient.

[0015] 2. By setting up a flow channel, when the interior of the core-piercing mold body rusts after long-term operation, lubricating oil can be injected into the equipment through the flow channel, which significantly reduces friction between surfaces. This makes it easier to disassemble the core-piercing mold body, and when lubrication is needed, new lubricating oil can be injected through the flow channel without disassembling the equipment or performing complicated operations, thus improving maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic feeding and mandrel-passing die device for a precision steel pipe drawing machine proposed in this utility model;

[0017] Figure 2 for Figure 1 The enlarged view at point A is shown below;

[0018] Figure 3 This is a schematic diagram of the placement body proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting body proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting body and the driving body proposed in this utility model;

[0021] Figure 6 This is an exploded view of the limiting body proposed in this utility model;

[0022] Figure 7 Top view of the limiting body proposed in this utility model

[0023] Figure 8 This is a schematic diagram of the installation components proposed in this utility model;

[0024] Figure 9 This is a split view of the installation components proposed in this utility model;

[0025] Figure 10 This is a cross-sectional view of the connecting block proposed in this utility model.

[0026] Legend:

[0027] 1. Feeding body; 2. Spring II; 3. Limiting plate; 4. Placement rack; 5. Blocking plate; 6. Motor; 7. Limiting block; 8. Fixing block; 9. Connecting plate; 10. Mounting plate; 11. Base; 12. Cylinder II; 13. Drive rod; 14. Fixing frame; 15. Engaging column; 16. Mounting frame; 17. Mounting block; 18. Connecting block; 19. Guide channel; 20. Core rod mold body; 21. Engaging block; 22. Fixing plate; 23. Spring I; 24. Cylinder I; 25. Push plate. Detailed Implementation

[0028] Reference Figure 1-10 The present invention provides an automatic feeding mandrel die device for a precision steel pipe drawing machine, including a feeding body 1, a mounting frame 16 and multiple mandrel die bodies 20. The multiple mandrel die bodies 20 are arranged inside the mounting frame 16 and are all connected to the mounting frame 16 through mounting components.

[0029] The mounting components include a mounting block 17, a locking block 21, a fixing plate 22, and a connecting block 18. The bottom end of the mounting block 17 extends into the interior of the mounting frame 16. Multiple guide grooves 19 are provided on one side of the mounting block 17. The end of the mounting block 17 near the mounting frame 16 extends into the interior of the core-piercing rod mold body 20. One side of the fixing plate 22 is fixedly connected to one side of the mounting block 17. The bottom end of the connecting block 18 penetrates through the fixing plate 22 and is fixedly connected to the upper end of the mounting frame 16. There are two locking blocks 21. The two locking blocks 21 extend into the interior of the connecting block 18. Springs 23 are fixedly connected to the ends of the two locking blocks 21 near the connecting block 18. One end of each spring 23 is fixedly connected to the inner sidewall of the connecting block 18. The ends of the two locking blocks 21 away from the two springs 23 are both arc-shaped.

[0030] Specifically, by setting the mounting block 17 and the locking block 21, the two locking blocks 21 are moved towards the connecting block 18 until they are fully inserted into the interior of the connecting block 18. At this time, the fixing plate 22 will be unrestricted and will move away from the mounting frame 16. The movement of the fixing plate 22 will cause the mounting block 17 to move away from the core rod mold body 20. At this time, the core rod mold body 20 can be disassembled. The structure is simple and the operation is easy, making the replacement and maintenance of the core rod mold body 20 more convenient.

[0031] During installation, the mounting block 17 is simply inserted back into the core rod mold body 20. During this process, the fixing plate 22 will first contact the arc-shaped side of the two locking blocks 21. The fixing plate 22 will press the two locking blocks 21, causing them to enter the connecting block 18 until the fixing plate 22 has completely passed through the two locking blocks 21. At this point, the two springs 23 will cause the two locking blocks 21 to pop out, thus fixing the position of the fixing plate 22. This completes the fixing of the core rod mold body 20.

[0032] The feeding body 1 has multiple limit plates 3 and a drive body that synchronously drives the multiple limit bodies on one side. Multiple limit bodies are arranged opposite each other on the multiple limit plates 3. The multiple limit bodies are synchronously controlled on one side through the connecting body. The feeding body 1 also has a cylinder 24 installed on the upper end. The output end of the cylinder 24 is fixedly connected to a push plate 25.

[0033] Among them, cylinder 24 pushes push plate 25 to transfer the precision steel tube into the interior of the mandrel mold;

[0034] The limiting body includes a limiting block 7, a locking post 15, and a fixing frame 14. There are two limiting blocks 7, both of which are movably set in the sliding grooves provided on the fixing frame 14. The two limiting blocks 7 are arranged opposite each other, and the adjacent sides of the two limiting blocks 7 are both arc-shaped. There are multiple locking posts 15. Each side of the two limiting blocks 7 is provided with multiple locking holes for limiting the multiple locking posts 15. The outer side wall of the multiple locking posts 15 away from the multiple locking holes is provided with spring 2. One end of the multiple spring 2 is fixedly connected to one side of the fixing frame 14, and the end of the multiple spring 2 away from the fixing frame 14 is fixedly connected to one side of the connecting body. The driving body includes a motor 6 and a driving rod 13. The motor 6 is installed above the feeding body 1. The output end of the motor 6 is fixedly connected to one end of the driving rod 13. The end of the driving rod 13 away from the motor 6 is fixedly inserted through the limiting plate 3.

[0035] Specifically, by setting the locking post 15 and the second spring 2, the connecting body is pulled to move away from the fixed frame 14. The connecting body drives the locking post 15 to move, so that the end of the locking post 15 away from the connecting body will disengage from the locking hole. During this process, the movement of the connecting body will also stretch the second spring 2. When the locking post 15 is completely disengaged from the locking hole, the positions of the two limit blocks 7 can be adjusted, that is, the distance between the two limit blocks 7 can be adjusted. This allows for positioning and transmission of both larger and smaller precision steel pipes during the production process, which improves the versatility of the overall equipment to a certain extent.

[0036] The connecting body includes a connecting plate 9 and a fixing block 8. There are two fixing blocks 8. One side of each fixing block 8 is fixedly connected to one side of the connecting plate 9. One side of the locking post 15 is fixedly connected to the connecting plate 9 on one side of the two fixing blocks 8. One end of the second spring 2 is fixedly connected to one side of the connecting plate 9.

[0037] Among them, pulling the connecting plate 9 can synchronously control multiple locking columns 15, and by setting two fixing blocks 8, it can prevent the rebound amplitude from being too large when the connecting plate 9 rebounds, which to a certain extent makes the service life of the equipment longer.

[0038] A placement body is fixedly installed on one side of the feeding body 1. The placement body includes a placement frame 4 and a locking assembly. One side of the placement frame 4 is fixedly connected to one side of the feeding body 1. The upper end of the placement frame 4 is inclined. The locking assembly is installed on the placement frame 4. The locking assembly includes a base 11, a second cylinder 12, a mounting plate 10, and a blocking plate 5. The base 11 is fixedly installed on the placement body. The second cylinder 12 is fixedly installed on the base 11. The output end of the second cylinder 12 is fixedly connected to the bottom end of the mounting plate 10. There are two blocking plates 5. The ends of the two blocking plates 5 are fixedly connected to the upper end of the mounting plate 10.

[0039] When the equipment is in use, the precision steel pipe is usually placed on the placement rack 4 first. The position of the precision steel pipe is limited by two baffle plates 5. When it needs to be transferred, the cylinder 12 is activated, which causes the mounting plate 10 to move towards the base 11. During this process, the two baffle plates will gradually stop limiting the precision steel pipe, and the precision steel pipe will enter the feeding body 1 through the inclined side of the placement rack 4 for transfer.

[0040] Working principle: When the equipment is in use, the precision steel pipe is usually placed on the placement rack 4 first. The position of the precision steel pipe is limited by two baffles 5. When it needs to be transferred, the cylinder 12 is activated, which drives the mounting plate 10 to move closer to the base 11. During this process, the two baffles will gradually stop limiting the precision steel pipe, and the precision steel pipe will enter the feeding body 1 through the inclined side of the placement rack 4 for transfer.

[0041] By setting the locking post 15 and the second spring 2, pulling the connecting plate 9 can synchronously control the multiple locking posts 15, so that the end of the locking post 15 away from the connecting body will disengage from the locking hole. During this process, the movement of the connecting body will also stretch the second spring 2. When the locking post 15 is completely disengaged from the locking hole, the position of the two limit blocks 7 can be adjusted, that is, the distance between the two limit blocks 7 can be adjusted. Referring to Figure 1, the present invention provides an automatic feeding mandrel die device for a precision steel pipe drawing machine: including a feeding body 1, a plurality of limit plates 3 are provided on one side of the feeding body 1 and a driving body that synchronously drives the plurality of limit bodies. A plurality of limit bodies are arranged opposite to each other on the plurality of limit plates 3, and one side of the plurality of limit bodies is synchronously controlled through the connecting body.

[0042] The limiting body includes a limiting block 7, a locking post 15, and a fixing frame 14. There are two limiting blocks 7, both of which are movably set in the sliding grooves provided on the fixing frame 14. The two limiting blocks 7 are arranged opposite each other, and the adjacent sides of the two limiting blocks 7 are both arc-shaped. There are multiple locking posts 15. Each side of the two limiting blocks 7 is provided with multiple locking holes for limiting the multiple locking posts 15. The outer side wall of the multiple locking posts 15 away from the multiple locking holes is provided with spring 2. One end of the multiple spring 2 is fixedly connected to one side of the fixing frame 14, and the end of the multiple spring 2 away from the fixing frame 14 is fixedly connected to one side of the connecting body. The driving body includes a motor 6 and a driving rod 13. The motor 6 is installed above the feeding body 1. The output end of the motor 6 is fixedly connected to one end of the driving rod 13. The end of the driving rod 13 away from the motor 6 is fixedly inserted through the limiting plate 3.

[0043] Two limit blocks 7 form a group, and there is a gap between each group. When the adjacent limit blocks 7 in two adjacent groups are adjusted in position, the gap between them will increase. When the size of the precision steel pipes being transported is different, the gap between the adjacent limit blocks 7 in each group can play a screening role. When the size of the precision steel pipe is smaller than the gap between the adjacent limit blocks 7 in each group, it will fall between the adjacent limit blocks 7, thus realizing the screening of precision steel pipes during processing.

[0044] Specifically, by setting the locking post 15 and the second spring 2, the connecting body is pulled to move away from the fixed frame 14. The connecting body drives the locking post 15 to move, so that the end of the locking post 15 away from the connecting body will disengage from the locking hole. During this process, the movement of the connecting body will also stretch the second spring 2. When the locking post 15 is completely disengaged from the locking hole, the positions of the two limit blocks 7 can be adjusted, that is, the distance between the two limit blocks 7 can be adjusted. This allows for positioning and transmission of both larger and smaller precision steel pipes during the production process, which improves the versatility of the overall equipment to a certain extent.

[0045] The connecting body includes a connecting plate 9 and a fixing block 8. There are two fixing blocks 8. One side of each fixing block 8 is fixedly connected to one side of the connecting plate 9. One side of the locking post 15 is fixedly connected to the connecting plate 9 on one side of the two fixing blocks 8. One end of the second spring 2 is fixedly connected to one side of the connecting plate 9.

[0046] Among them, pulling the connecting plate 9 can synchronously control multiple locking columns 15, and by setting two fixing blocks 8, it can prevent the rebound amplitude from being too large when the connecting plate 9 rebounds, which to a certain extent makes the service life of the equipment longer.

[0047] A placement body is fixedly installed on one side of the feeding body 1. The placement body includes a placement frame 4 and a locking assembly. One side of the placement frame 4 is fixedly connected to one side of the feeding body 1. The upper end of the placement frame 4 is inclined. The locking assembly is installed on the placement frame 4. The locking assembly includes a base 11, a second cylinder 12, a mounting plate 10, and a blocking plate 5. The base 11 is fixedly installed on the placement body. The second cylinder 12 is fixedly installed on the base 11. The output end of the second cylinder 12 is fixedly connected to the bottom end of the mounting plate 10. There are two blocking plates 5. The ends of the two blocking plates 5 are fixedly connected to the upper end of the mounting plate 10.

[0048] When the equipment is in use, the precision steel pipe is usually placed on the placement rack 4 first. The position of the precision steel pipe is limited by two baffle plates 5. When it needs to be transferred, the cylinder 12 is activated to drive the mounting plate 10 to move closer to the base 11. During this process, the two baffle plates will gradually stop limiting the precision steel pipe, and the precision steel pipe will enter the feeding body 1 through the inclined side of the placement rack 4 for transfer.

[0049] The feeding body 1 of the above-mentioned equipment is usually composed of a feeding rack and a conveying device. After the precision steel pipe enters the feeding rack, it is transported by the conveying device to facilitate subsequent work. After the precision steel pipe enters the mandrel mold body 20, the mandrel mold body 20 is used to fit the steel pipe blank into the mandrel mold, and the drawing machine makes it plastically deformed by passing through the mandrel mold and the outer mold at the same time, so as to achieve the required size and shape. The mandrel mold body 20 is usually bolted to the feeding rack for easy replacement and disassembly.

[0050] Working principle: When the equipment is in use, the precision steel pipe is usually placed on the placement rack 4 first. The position of the precision steel pipe is limited by two baffles 5. When it needs to be transferred, the cylinder 12 is activated, which drives the mounting plate 10 to move closer to the base 11. During this process, the two baffles will gradually stop limiting the precision steel pipe, and the precision steel pipe will enter the feeding body 1 through the inclined side of the placement rack 4 for transfer.

[0051] By setting the locking post 15 and the second spring 2, pulling the connecting plate 9 can synchronously control multiple locking posts 15, so that the end of the locking post 15 away from the connecting body will disengage from the locking hole. During this process, the movement of the connecting body will also stretch the second spring 2. When the locking post 15 is completely disengaged from the locking hole, the position of the two limit blocks 7 can be adjusted, that is, the distance between the two limit blocks 7 can be adjusted.

[0052] By setting the mounting block 17 and the locking block 21, and moving the two locking blocks 21 toward the connecting block 18 until the two locking blocks 21 are fully inserted into the interior of the connecting block 18, the fixing plate 22 will be unrestricted and will move away from the mounting frame 16. The movement of the fixing plate 22 will cause the mounting block 17 to move away from the core rod mold body 20, thus enabling the disassembly of the core rod mold body 20. The structure is simple and the operation is easy, making the replacement and maintenance of the core rod mold body 20 more convenient.

[0053] During installation, the mounting block 17 is simply inserted back into the core rod mold body 20. During this process, the fixing plate 22 will first contact the arc-shaped side of the two locking blocks 21. The fixing plate 22 will press the two locking blocks 21, causing them to enter the connecting block 18 until the fixing plate 22 is completely through the two locking blocks 21. At this point, the two springs 23 will cause the two locking blocks 21 to pop out, thus fixing the position of the fixing plate 22. This completes the fixing of the core rod mold body 20.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine, characterized in that: It includes a feeding body (1), a mounting frame (16) and multiple core-piercing rod mold bodies (20), the multiple core-piercing rod mold bodies (20) are disposed inside the mounting frame (16), and the multiple core-piercing rod mold bodies (20) are connected to the mounting frame (16) through mounting components; The mounting assembly includes a mounting block (17), a locking block (21), a fixing plate (22), and a connecting block (18). The bottom end of the mounting block (17) extends into the interior of the mounting frame (16). A plurality of guide grooves (19) are provided on one side of the mounting block (17). The end of the mounting block (17) near the mounting frame (16) extends into the interior of the core-piercing rod mold body (20). One side of the fixing plate (22) is fixedly connected to one side of the mounting block (17). The bottom end of the connecting block (18) penetrates through the core-piercing rod mold body (20). The bottom end of the fixing plate (22) and the connecting block (18) are fixedly connected to the upper end of the mounting frame (16). There are two locking blocks (21). The two locking blocks (21) extend into the interior of the connecting block (18). A spring (23) is fixedly connected to one end of each locking block (21) near the connecting block (18). One end of each spring (23) is fixedly connected to the inner side wall of the connecting block (18). The ends of the two locking blocks (21) away from the two springs (23) are both set in an arc shape.

2. The automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine according to claim 1, characterized in that: The feeding body (1) is provided with multiple limiting plates (3) on one side, and multiple limiting bodies are provided opposite to each other on the multiple limiting plates (3). The feeding body (1) is also provided with a driving body that synchronously drives the multiple limiting bodies on one side. The multiple limiting bodies are synchronously controlled by a connecting body on one side. The feeding body (1) is also provided with a cylinder (24) at the upper end, and a push plate (25) is fixedly connected to the output end of the cylinder (24).

3. The automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine according to claim 2, characterized in that: The limiting body includes a limiting block (7), a locking post (15), and a fixing frame (14). There are two limiting blocks (7), and both limiting blocks (7) are movably disposed in the sliding groove provided on the fixing frame (14). The two limiting blocks (7) are arranged opposite to each other, and the adjacent sides of the two limiting blocks (7) are both set in an arc shape. There are multiple locking posts (15). One side of each of the two limiting blocks (7) is provided with multiple locking holes for limiting the multiple locking posts (15). The outer side wall of the multiple locking posts (15) away from the multiple locking holes is provided with springs (2). One end of the multiple springs (2) is fixedly connected to one side of the fixing frame (14), and the end of the multiple springs (2) away from the fixing frame (14) is fixedly connected to one side of the connecting body.

4. The automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine according to claim 3, characterized in that: The connecting body includes a connecting plate (9) and a fixing block (8). There are two fixing blocks (8). One side of each fixing block (8) is fixedly connected to one side of the connecting plate (9). One side of the locking post (15) is fixedly connected to the connecting plate (9) on one side of the two fixing blocks (8). One end of the second spring (2) is fixedly connected to one side of the connecting plate (9).

5. The automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine according to claim 4, characterized in that: The driving body includes a motor (6) and a driving rod (13). The motor (6) is installed above the feeding body (1). The output end of the motor (6) is fixedly connected to one end of the driving rod (13). The end of the driving rod (13) away from the motor (6) is fixedly inserted through the limiting plate (3).

6. The automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine according to claim 5, characterized in that: A placement body is fixedly installed on one side of the feeding body (1). The placement body includes a placement frame (4) and a locking assembly. One side of the placement frame (4) is fixedly connected to one side of the feeding body (1). The upper end of the placement frame (4) is inclined. The locking assembly is installed on the placement frame (4).

7. The automatic feeding and mandrel-threading die device for a precision steel pipe drawing machine according to claim 6, characterized in that: The engaging assembly includes a base (11), a second cylinder (12), a mounting plate (10), and a blocking plate (5). The base (11) is fixedly mounted on the placement frame. The second cylinder (12) is fixedly mounted on the base (11). The output end of the second cylinder (12) is fixedly connected to the bottom end of the mounting plate (10). There are two blocking plates (5), and the ends of the two blocking plates (5) are fixedly connected to the upper end of the mounting plate (10).

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