A precision punching device for steel round pipes

Abstract

The utility model relates to a kind of precision punching device for steel round pipe, including core rod fixed seat, power source fixed seat is fixed in one side of core rod fixed seat, main fixed core rod is fixedly installed in core rod fixed seat, main movement core rod is movably penetrated in core rod fixed seat, core rod driving power source is installed on power source fixed seat, core rod driving power source is connected with main movement core rod, main fixed core rod is sequentially connected with several extension fixed core rods by core rod connecting block, main movement core rod is sequentially connected with extension movement core rod by core rod connecting block, main fixed core rod, extension fixed core rod are all equipped with punching female die, each punching groove below is correspondingly provided with one lifting support assembly.The utility model can realize the compensation to the diameter, wall thickness and radian fluctuation value of round pipe, reduce the deformation of round pipe punching;Multiple hole positions can be punched simultaneously, the number of equipment is reduced, the automation speed is improved, and the personnel and equipment maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of punching equipment, and in particular to a precision punching device for steel round tubes. Background Technology

[0002] Existing precision punching equipment for steel pipes mostly uses fixed structures for the internal die and external support, which cannot compensate for fluctuations in the diameter, wall thickness, and curvature of each round pipe. During punching, the die and the round pipe cannot fit together, resulting in severe deformation of the round pipe after punching. Furthermore, to achieve multi-hole punching in this field, multiple machines are usually required to produce simultaneously, resulting in low production efficiency and high personnel and equipment maintenance costs. Utility Model Content

[0003] The present invention aims to address the shortcomings of the prior art by providing a precision punching device for steel round tubes.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A precision punching device for steel round tubes includes a mandrel fixing seat, a power source fixing seat fixed on one side of the mandrel fixing seat, a main fixed mandrel fixedly installed inside the mandrel fixing seat, a main moving mandrel movably passing through the mandrel fixing seat, the main moving mandrel being located below the main fixed mandrel, a mandrel driving power source installed on the power source fixing seat, the mandrel driving power source being connected to the main moving mandrel, a plurality of extended fixed mandrels being sequentially connected to the main fixed mandrel via mandrel connecting blocks, and the main moving mandrel being sequentially connected to the extended moving mandrels via mandrel connecting blocks. Punching grooves are provided on both the main fixed mandrel and the extended fixed mandrels, and a lifting support assembly is correspondingly provided below each punching groove.

[0006] The lifting support assembly includes a base plate, a drive block is provided on the upper surface of the base plate, the drive block is connected to a mobile power source, the upper surface of the drive block is an inclined slope structure and the higher end of the inclined slope is close to the mobile power source, the upper surface of the mobile power source is provided with four guide sleeves, the guide sleeves are provided with guide posts, and support blocks are installed through the four guide posts. The support blocks are located below the punched groove, the bottom of the support blocks is provided with a through groove and the drive block is installed through the through groove.

[0007] A limit plate is fixed to one end of the upper surface of the base plate near the mobile power source, and the drive block is installed inside the limit plate.

[0008] A self-lubricating slide plate is installed on the upper surface of the base plate below the drive block, and the drive block is slidably mounted on the self-lubricating slide plate.

[0009] T-shaped guide blocks are installed near the port on the middle position of the inner wall of the main moving mandrel and the extension moving mandrel via a fixed pressure plate. Guide grooves are provided in the middle position of the inner wall of the main fixed mandrel and the extension fixed mandrel, and the guide grooves are installed in conjunction with the T-shaped guide blocks.

[0010] The mandrel connecting block includes an intermediate connecting block, with T-shaped connecting blocks at both ends. The connecting ends of the main fixed mandrel, the main moving mandrel, the extended fixed mandrel, and the extended moving mandrel are all provided with mating mounting grooves corresponding to the intermediate connecting block and the T-shaped connecting block.

[0011] The beneficial effects of this utility model are as follows: This utility model ensures that the punching groove is supported in the inner cavity of the round tube by the relative movement and self-locking of the split mandrel. With the help of the external lifting support component, it can adapt to punching at different positions of the round tube and can compensate for the fluctuation values ​​of the diameter, wall thickness and curvature of the round tube, thereby reducing the deformation of the round tube punching. It can realize simultaneous punching of multiple holes, reduce the number of equipment, improve the automation speed, and reduce personnel and equipment maintenance costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model after omitting the support block and the limiting pressure plate;

[0014] In the diagram: 1-Mandrel fixing seat; 2-Power source fixing seat; 3-Main fixed mandrel; 4-Main moving mandrel; 5-Mandrel drive power source; 6-Mandrel connecting block; 7-Extended fixed mandrel; 8-Extended moving mandrel; 9-Punched groove; 10-Lifting support assembly; 11-Fixed pressure plate; 12-T-shaped guide block; 13-Y-type pin-connecting rod;

[0015] 1001-Base plate; 1002-Drive block; 1003-Mobile power source; 1004-Guide sleeve; 1005-Guide post; 1006-Support block; 1007-Limiting pressure plate; 1008-Self-lubricating sliding plate; 1009-Vertical plate; 1010-Cylinder connector;

[0016] 601 - Intermediate connecting block; 602 - T-shaped connecting block;

[0017] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] A precision punching device for steel round tubes, such as Figures 1 to 2 As shown, it includes a mandrel fixing seat 1, a power source fixing seat 2, a main fixed mandrel 3, a main moving mandrel 4, a mandrel driving power source 5, a mandrel connecting block 6, an extension fixed mandrel 7, an extension moving mandrel 8, a punched groove 9, a lifting support assembly 10, a fixing pressure plate 11, a T-shaped guide block 12, and a Y-shaped pin connecting rod 13.

[0022] A power source mounting base 2 is fixedly provided on one side of the mandrel mounting base 1. The power source mounting base 2 has an L-shaped structure and a mandrel drive power source 5 is installed on the power source mounting base 2.

[0023] The main fixed mandrel 3 is fixedly installed in the mandrel fixing seat 1, and the main moving mandrel 4 is movably inserted in the mandrel fixing seat 1. The main moving mandrel 4 is located below the main fixed mandrel 3, and the mandrel driving power source 5 is connected to the main moving mandrel 4.

[0024] The mandrel drive power source 5 is a cylinder, and the piston rod of the mandrel drive power source 5 is connected to the main moving mandrel 4 through a Y-shaped pin connecting rod 13.

[0025] The main fixed mandrel 3 is connected in sequence to several extended fixed mandrels 7 via mandrel connecting blocks 6, and the main moving mandrel 4 is connected in sequence to extended moving mandrels 8 via mandrel connecting blocks 6. As shown in the figure, there are a total of three fixed mandrels and three moving mandrels, which can be set as needed.

[0026] The mandrel connecting block 6 includes an intermediate connecting block 601, with T-shaped connecting blocks 602 at both ends of the intermediate connecting block 601. The connecting ends of the main fixed mandrel 3, the main moving mandrel 4, the extended fixed mandrel 7, and the extended moving mandrel 8 are all provided with mating mounting grooves corresponding to the intermediate connecting block 601 and the T-shaped connecting block 602.

[0027] The main fixed mandrel 3 and the extended fixed mandrel 7 together form the stationary mandrel section.

[0028] The main moving mandrel 4 and the extended moving mandrel 8 together form the moving mandrel section, which is driven by the mandrel drive power source 5 to perform telescopic movement. Through telescopic movement, both the fixed mandrel section and the moving mandrel section are supported in the inner cavity of the circular tube, and self-locking is achieved through contact with the inner cavity of the circular tube.

[0029] T-shaped guide blocks 12 are installed near the port on the middle position of the inner wall of the main moving core rod 4 and the extension moving core rod 8 via a fixed pressure plate 11. Guide grooves are provided in the middle position of the inner wall of the main fixed core rod 3 and the extension fixed core rod 7. The guide grooves are installed in conjunction with the T-shaped guide blocks 12.

[0030] The mandrels are connected by T-shaped guide blocks 12 and guide grooves, which ensures the straightness and stability of the moving mandrels during the extension and retraction process.

[0031] Both the main fixing core rod 3 and the extension fixing core rod 7 are provided with punching grooves 9, and the punching grooves 9 are provided with corresponding punches.

[0032] Each punched groove 9 has a corresponding lifting support component 10 below it.

[0033] The lifting support assembly 10 includes a base plate 1001. A drive block 1002 is provided on the upper surface of the base plate 1001. The drive block 1002 is connected to a mobile power source 1003. The upper surface of the drive block 1002 is an inclined slope structure, and the higher end of the inclined slope is close to the mobile power source 1003. The upper surface of the mobile power source 1003 is provided with four guide sleeves 1004. Guide posts 1005 are provided on the guide sleeves 1004. Support blocks 1006 are installed through the four guide posts 1005. The support blocks 1006 are located below the punched groove 9. The bottom of the support block 1006 is provided with a through groove, and the drive block 1002 is installed through the through groove.

[0034] The mobile power source 1003 drives the drive block 1002 to move horizontally. When the drive block 1002 moves horizontally, its inclined surface contacts the inner wall of the through groove of the support block 1006, converting the horizontal thrust into the vertical lifting force of the support block 1006, thus supporting the circular tube.

[0035] The guide post 1005 and the guide sleeve 1004 ensure that the support block moves smoothly and vertically without swaying.

[0036] A limiting pressure plate 1007 is fixed to one end of the upper surface of the base plate 1001 near the mobile power source 1003, and the drive block 1002 is installed inside the limiting pressure plate 1007.

[0037] A self-lubricating slide plate 1008 is installed on the upper surface of the base plate 1001 below the drive block 1002, and the drive block 1002 is slidably mounted on the self-lubricating slide plate 1008.

[0038] Both the self-lubricating slide plate 1008 and the limiting pressure plate 1007 are designed to ensure smooth movement, reduce wear, and provide precise positioning.

[0039] A vertical plate 1009 is provided on one side of the base plate 1001, and a mobile power source 1003 is installed on the outer side of the vertical plate 1009.

[0040] The mobile power source 1003 is a cylinder, and the piston rod of the mobile power source 1003 is connected to the drive block 1002 through the cylinder joint 1010.

[0041] The working principle of this utility model is as follows:

[0042] The main moving mandrel 4 and the extended moving mandrel 8 are connected as a whole by the mandrel connecting block 6, and are connected to the mandrel drive power source 5 by the Y-shaped pin connecting rod 13. The moving mandrel part and the fixed mandrel part are guided by the T-shaped guide block 12. The mandrel drive power source 5 works to push the main moving mandrel 4 and the extended moving mandrel 8 to move until the fixed mandrel part and the moving mandrel part are both supported in the inner cavity of the round tube. The mandrel achieves self-locking through the contact surface.

[0043] The support block 1006 is installed with the guide post 1005. The drive block 1002 is connected to the mobile power source 1003 through the cylinder connector 1010. When the mobile power source 1003 works, it drives the support block 1006 to move up and down through the drive block 1002 until the support block 1006 is supported on the outside of the round tube.

[0044] This invention uses a split mandrel that moves relative to each other and is self-locking to ensure that the punching groove 9 is supported in the inner cavity of the round tube. In conjunction with the external lifting support assembly 10, it can adapt to punching at different positions of the round tube and can compensate for fluctuations in the diameter, wall thickness and curvature of the round tube, thereby reducing the deformation of the round tube during punching.

[0045] This invention enables simultaneous punching at multiple holes, reducing the number of devices, increasing automation speed, and lowering personnel and equipment maintenance costs.

[0046] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A precision punching device for steel round tubes, characterized in that, The device includes a mandrel fixing seat (1), a power source fixing seat (2) fixed on one side of the mandrel fixing seat (1), a main fixed mandrel (3) fixedly installed inside the mandrel fixing seat (1), a main moving mandrel (4) movably passing through the mandrel fixing seat (1), the main moving mandrel (4) being located below the main fixed mandrel (3), a mandrel driving power source (5) installed on the power source fixing seat (2), the mandrel driving power source (5) being connected to the main moving mandrel (4), the main fixed mandrel (3) being sequentially connected to several extended fixed mandrels (7) through the mandrel connecting block (6), the main moving mandrel (4) being sequentially connected to extended moving mandrels (8) through the mandrel connecting block (6), and punched grooves (9) provided on both the main fixed mandrel (3) and the extended fixed mandrels (7), with a corresponding lifting support component (10) provided below each punched groove (9).

2. The precision punching device for steel round tubes according to claim 1, characterized in that, The lifting support assembly (10) includes a base plate (1001), a drive block (1002) is provided on the upper surface of the base plate (1001), the drive block (1002) is connected to a mobile power source (1003), the upper surface of the drive block (1002) is an inclined slope structure and the higher end of the inclined slope is close to the mobile power source (1003), the upper surface of the mobile power source (1003) is provided with four guide sleeves (1004), the guide sleeves (1004) are provided with guide posts (1005), the four guide posts (1005) are installed with support blocks (1006), the support blocks (1006) are located below the punched groove (9), the bottom of the support blocks (1006) is provided with a through groove and the drive block (1002) is installed in the through groove.

3. A precision punching device for steel round tubes according to claim 2, characterized in that, A limiting pressure plate (1007) is fixed to one end of the upper surface of the base plate (1001) near the mobile power source (1003), and a drive block (1002) is installed inside the limiting pressure plate (1007).

4. A precision punching device for steel round tubes according to claim 3, characterized in that, A self-lubricating slide plate (1008) is installed on the upper surface of the base plate (1001) below the drive block (1002), and the drive block (1002) is slidably mounted on the self-lubricating slide plate (1008).

5. A precision punching device for steel round tubes according to claim 4, characterized in that, A vertical plate (1009) is provided on one side of the base plate (1001), and a mobile power source (1003) is installed on the outer side of the vertical plate (1009).

6. A precision punching device for steel round tubes according to claim 5, characterized in that, The mobile power source (1003) is a cylinder, and the piston rod of the mobile power source (1003) is connected to the drive block (1002) through the cylinder connector (1010).

7. A precision punching device for steel round tubes according to claim 1, characterized in that, T-shaped guide blocks (12) are installed near the port on the middle position of the inner wall of the main moving core (4) and the extension moving core (8) through the fixed pressure plate (11). Guide grooves are provided in the middle position of the inner wall of the main fixed core (3) and the extension fixed core (7). The guide grooves are installed in conjunction with the T-shaped guide blocks (12).

8. A precision punching device for steel round tubes according to claim 1, characterized in that, The mandrel connecting block (6) includes an intermediate connecting block (601), and T-shaped connecting blocks (602) are provided at both ends of the intermediate connecting block (601). The connecting ends of the main fixed mandrel (3), the main moving mandrel (4), the extended fixed mandrel (7), and the extended moving mandrel (8) are all provided with matching mounting grooves corresponding to the intermediate connecting block (601) and the T-shaped connecting block (602).

9. A precision punching device for steel round tubes according to claim 1, characterized in that, The power source mounting base (2) has an L-shaped structure.

10. A precision punching device for steel round tubes according to claim 9, characterized in that, The mandrel drive power source (5) is a cylinder, and the piston rod of the mandrel drive power source (5) is connected to the main motion mandrel (4) through a Y-shaped pin connecting rod (13).

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