Finned tube punching device

Abstract

The utility model relates to the technical field of finned tube machining, in particular to a finned tube punching device which comprises a workbench and a support fixedly connected to the upper end of the workbench, a positioning mechanism comprises a base plate arranged above the workbench, side plates are fixedly connected to the left side and the right side of the upper end face of the base plate, a lead screw is a two-way lead screw, and the left side and the right side of the upper end face of the base plate are both provided with a positioning mechanism. The inner side of each V-shaped clamping block is of a V-shaped structure, so that the finned tubes can be matched with the finned tubes with different tube diameters, the universality is high, the positioning mechanism is convenient to operate, the punches are inserted into the positioning grooves through the positioning blocks to be fixed, and the punching efficiency is improved. Then a fixing bolt penetrates through the whole mounting head and the positioning block for limiting and locking, different types of punches can be replaced more conveniently, consumed time is short, chippings generated during punching enter a dust guide pipe through an air channel, then a vacuum generator works to generate negative pressure, the chippings are adsorbed into a dust collection box, treatment is convenient, the machining environment is clean, and the machining efficiency is improved. The maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of finned tube processing technology, specifically a finned tube punching device. Background Technology

[0002] Finned tubes are a type of heat exchange element. To improve heat exchange efficiency, fins are usually added to the surface of the heat exchange tube to increase its outer (or inner) surface area, thereby improving heat exchange efficiency. In the existing technology, the fins are spiral or straight. In order to increase the tube length, the finned tubes are generally processed by a serpentine winding method. In order to fix the finned tubes, holes need to be punched on the fins to facilitate the installation of bolts.

[0003] Existing finned tube punching devices have a simple positioning structure, which makes it difficult to adapt to the processing requirements of different tube diameters or irregular finned tubes. Frequent fixture adjustments are required. Punch replacement is inconvenient and time-consuming. Furthermore, punching waste is prone to accumulate and cannot be cleaned in time, affecting processing accuracy and safety. Utility Model Content

[0004] The purpose of this utility model is to provide a finned tube punching device, which is adaptable to finned tubes of different diameters, has strong versatility, convenient punch replacement, short processing time, and facilitates the collection of debris, making the processing environment clean and reducing the frequency of maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a finned tube punching device, comprising a workbench and a bracket fixedly connected to the upper end of the workbench;

[0006] The positioning mechanism includes a base plate disposed above the worktable. Side plates are fixedly connected to the left and right sides of the upper end face of the base plate. A lead screw is rotatably connected between the two side plates at the front. A slide rod is fixedly connected between the two side plates at the rear. Two symmetrically arranged V-shaped clamping blocks are movably connected to the outer walls of the lead screw and the slide rod.

[0007] A punching mechanism, comprising a mounting head located directly above two V-shaped clamping blocks, a positioning groove being provided at the bottom of the mounting head, a positioning block being movably connected inside the positioning groove, a punch being fixedly connected to the bottom end of the positioning block, and a fixing bolt penetrating the mounting head and the positioning block being provided on the outer wall of the mounting head;

[0008] A drive mechanism, mounted on the bottom of the bracket, is used to drive the punching mechanism to move;

[0009] A dust collection mechanism, mounted on the top of the bracket, is used to collect and absorb debris generated during the punching process.

[0010] As a preferred embodiment of the finned tube punching device of this utility model, the driving mechanism includes a hydraulic cylinder mounted on the top of the bracket, the output end of the hydraulic cylinder extending to the bottom of the bracket and fixedly connected to the mounting head, and end plates fixedly connected to both the left and right sides of the outer wall of the mounting head, and telescopic rods fixedly connected between the two end plates and the bracket.

[0011] As a preferred embodiment of the finned tube punching device of this utility model, the dust collection mechanism includes a dust collection box and a vacuum generator installed on the top of the bracket. The dust collection box and the vacuum generator are connected by a pipe. An air passage is opened inside the punch. A connector communicating with the air passage is fixedly connected to the outer wall of the punch. A dust guide pipe is connected between the connector and the vacuum generator.

[0012] As a preferred embodiment of the finned tube punching device of this utility model, the positioning mechanism further includes a slide rail fixedly connected to the upper surface of the workbench, two slide plates slidably connected to the upper surface of the slide rail, the two slide plates being fixedly connected to the base plate, and the outer walls of the two slide plates being threaded with fixing screws.

[0013] As a preferred embodiment of the finned tube punching device of this utility model, the lead screw is a bidirectional lead screw, with one end extending to the outside of the side plate and fixedly connected to a rotary valve.

[0014] As a preferred embodiment of the finned tube punching device of this utility model, a laser is provided on one side of the lower end face of the mounting head.

[0015] In a preferred embodiment of the finned tube punching device of this utility model, a roller groove is fixedly connected to the upper end surface of the substrate, and two rollers are rotatably connected to the bottom ends of the two V-shaped clamps, with the rollers extending into the interior of the roller groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The positioning mechanism is used to fix and position the finned tube to be punched. The finned tube is placed between two V-shaped clamps. The rotary valve drives the lead screw to rotate. The lead screw is a two-way lead screw, that is, the threads at both ends are opposite, so as to synchronously drive the two V-shaped clamps to move relative to each other, thereby clamping and fixing the finned tube. The inner side of the V-shaped clamps has a V-shaped structure, which can be adapted to finned tubes of different diameters. It has strong versatility and the positioning mechanism is easy to operate.

[0018] The punch is fixed inside the positioning slot by inserting a positioning block, and then the fixing bolt passes through the entire mounting head and positioning block to limit and lock it. This makes it more convenient and less time-consuming to replace different models of punches.

[0019] During punching, the hydraulic cylinder is activated to move the mounting head downwards, and the mounting head drives the punch to punch the finned tube. The telescopic rod is set to guide the punch and improve the stability of the punch pressing down.

[0020] During the punching process, the vacuum generator is activated, and the debris generated during punching enters the dust guide tube through the air passage. Then, the vacuum generator works to generate negative pressure, which adsorbs the debris into the dust collection box for easy handling, keeps the processing environment clean, and reduces the frequency of maintenance. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is the overall main view of the present invention;

[0023] Figure 2 This is an enlarged cross-sectional view of the punching mechanism of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the positioning mechanism of this utility model;

[0025] Figure 4 This is a bottom view of the punch structure of this utility model;

[0026] Figure 5 This utility model Figure 1 Enlarged structural diagram of part a in the middle.

[0027] The markings in the diagram are: 1. Workbench; 2. Support; 3. Base plate; 4. Side plate; 5. Lead screw; 6. Slide rod; 7. V-shaped clamp; 8. Mounting head; 9. Positioning groove; 10. Positioning block; 11. Punch; 12. Fixing bolt; 13. Hydraulic cylinder; 14. End plate; 15. Telescopic rod; 16. Air passage; 17. Connector; 18. Dust collection box; 19. Vacuum generator; 20. Dust guide pipe; 21. Slide rail; 22. Slide plate; 23. Fixing screw; 24. Rotary valve; 25. Laser; 26. Groove; 27. Roller. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0029] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0030] Please see Figures 1 to 5 A finned tube punching device includes a workbench 1 and a bracket 2 fixedly connected to the upper end of the workbench 1.

[0031] The positioning mechanism includes a base plate 3 set above the workbench 1. Side plates 4 are fixedly connected to the left and right sides of the upper end surface of the base plate 3. A lead screw 5 is rotatably connected between the two side plates 4 at the front. A slide rod 6 is fixedly connected between the two side plates 4 at the rear. Two symmetrically arranged V-shaped clamping blocks 7 are movably connected to the outer walls of the lead screw 5 and the slide rod 6.

[0032] The punching mechanism includes a mounting head 8 located directly above two V-shaped clamping blocks 7. The bottom of the mounting head 8 is provided with a positioning groove 9. A positioning block 10 is movably connected inside the positioning groove 9. A punch 11 is fixedly connected to the bottom end of the positioning block 10. A fixing bolt 12 is provided on the outer wall of the mounting head 8, penetrating the mounting head 8 and the positioning block 10.

[0033] The drive mechanism is mounted on the bottom of the bracket 2 and is used to drive the punching mechanism to move.

[0034] The dust collection mechanism is installed on the top of the bracket 2 and is used to collect the debris generated during the punching process.

[0035] In this embodiment: the positioning mechanism is used to fix and position the finned tube to be punched. The finned tube is placed between two V-shaped clamps 7. The rotary valve 24 drives the lead screw 5 to rotate. The lead screw 5 is a bidirectional lead screw, that is, the threads at both ends are opposite, thereby synchronously driving the two V-shaped clamps 7 to move relative to each other, thereby clamping and fixing the finned tube. The inner side of the V-shaped clamp 7 has a V-shaped structure, which can be adapted to finned tubes of different diameters, making it highly versatile and easy to operate.

[0036] The punch 11 is fixed inside the positioning groove 9 by inserting the positioning block 10, and then the fixing bolt 12 passes through the entire mounting head 8 and the positioning block 10 to limit and lock it. This makes it more convenient and less time-consuming to replace punches 11 of different models.

[0037] As a technical optimization of this utility model, the driving mechanism includes a hydraulic cylinder 13 installed at the top of the bracket 2. The output end of the hydraulic cylinder 13 extends to the bottom of the bracket 2 and is fixedly connected to the mounting head 8. End plates 14 are fixedly connected to both the left and right sides of the outer wall of the mounting head 8. Telescopic rods 15 are fixedly connected between the two end plates 14 and the bracket 2.

[0038] In this embodiment: when punching, the hydraulic cylinder 13 is activated to drive the mounting head 8 to move down, and the mounting head 8 drives the punch 11 to punch the finned tube. The telescopic rod 15 is set to guide and improve the stability of the punch 11 pressing down.

[0039] As a technical optimization of this utility model, the dust collection mechanism includes a dust collection box 18 and a vacuum generator 19 installed on the top of the bracket 2. The dust collection box 18 and the vacuum generator 19 are connected by a pipe. An air passage 16 is opened inside the punch 11. A connector 17 connected to the air passage 16 is fixedly connected to the outer wall of the punch 11. A dust guide pipe 20 is connected between the connector 17 and the vacuum generator 19.

[0040] In this embodiment: During the punching process, the vacuum generator 19 is activated, and the debris generated by punching enters the dust guide pipe 20 through the air passage 16. Then, the vacuum generator 19 works to generate negative pressure, which adsorbs the debris into the dust collection box 18 for easy handling, keeps the processing environment clean, and reduces the maintenance frequency.

[0041] As a technical optimization of this utility model, the positioning mechanism also includes a slide rail 21 fixedly connected to the upper surface of the worktable 1. Two slide plates 22 are slidably connected to the upper surface of the slide rail 21. The two slide plates 22 are fixedly connected to the base plate 3. The outer walls of the two slide plates 22 are threaded with fixing screws 23.

[0042] In this embodiment: the substrate 3 is slidably connected to the upper end of the slide rail 21 via the slide plate 22, so that the horizontal position of the finned tube can be adjusted according to the situation, making it more flexible to use. The fixing screw 23 is used to lock the slide plate 22, so that the slide plate 22 and the slide rail 21 are relatively fixed.

[0043] As a technical optimization of this utility model, the lead screw 5 is a bidirectional lead screw, with one end extending to the outside of the side plate 4 and fixedly connected to a rotary valve 24.

[0044] In this embodiment: the lead screw 5 is a bidirectional lead screw, one end of which extends to the outside of the side plate 4 and is fixedly connected to a rotary valve 24. The rotary valve 24 facilitates the rotation of the lead screw 5. The lead screw 5 is a bidirectional lead screw, that is, the threads at both ends are opposite, thereby synchronously driving the two V-shaped clamps 7 to move relative to each other, thereby clamping and fixing the finned tube.

[0045] As a technical optimization of this utility model, a laser 25 is provided on one side of the lower end face of the mounting head 8.

[0046] In this embodiment, a laser 25 is provided on one side of the lower end face of the mounting head 8. Activating the laser 25 facilitates real-time display of the punching position, thereby improving the punching accuracy.

[0047] As a technical optimization of this utility model, a rolling groove 26 is fixedly connected to the upper end surface of the substrate 3, and two rollers 27 are rotatably connected to the bottom ends of the two V-shaped clamps 7, with multiple rollers 27 extending into the interior of the rolling groove 26.

[0048] In this embodiment, the roller 27 rolls inside the groove 26, and the roller 27 is fixed to the bottom of the V-shaped clamp 7, thereby limiting the V-shaped clamp 7 so that it can only move in the horizontal direction.

[0049] Working principle: During use, the finned tube is placed between two V-shaped clamps 7. The rotary valve 24 drives the lead screw 5 to rotate. The lead screw 5 is a bidirectional lead screw, that is, the threads at both ends are opposite, thereby synchronously driving the two V-shaped clamps 7 to move relative to each other, thus clamping and fixing the finned tube. Then, the hydraulic cylinder 13 is activated to drive the mounting head 8 to move down. The mounting head 8 drives the punch 11 to punch the finned tube. The telescopic rod 15 is set to guide and improve the stability of the punch 11 when it is pressed down. During the punching process, the vacuum generator 19 is activated. The debris generated by punching enters the dust guide pipe 20 through the air passage 16. Then, the vacuum generator 19 works to generate negative pressure, which adsorbs the debris into the dust collection box 18 for easy processing. The punch 11 is fixed inside the positioning groove 9 by the positioning block 10. Then, the fixing bolt 12 passes through the entire mounting head 8 and the positioning block 10 to limit and lock it. It is more convenient and less time-consuming to replace different models of punch 11.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. A punching device for finned tubes, characterized in that: Includes a workbench (1) and a bracket (2) fixedly connected to the upper end of the workbench (1); The positioning mechanism includes a base plate (3) disposed above the workbench (1), and side plates (4) are fixedly connected to the left and right sides of the upper end surface of the base plate (3). A lead screw (5) is rotatably connected between the two side plates (4) in front, and a slide rod (6) is fixedly connected between the two side plates (4) in the rear. Two symmetrically arranged V-shaped clamps (7) are movably connected to the outer walls of the lead screw (5) and the slide rod (6). The punching mechanism includes a mounting head (8) located directly above two V-shaped clamps (7). The bottom of the mounting head (8) is provided with a positioning groove (9). A positioning block (10) is movably connected inside the positioning groove (9). A punch (11) is fixedly connected to the bottom end of the positioning block (10). A fixing bolt (12) penetrating the mounting head (8) and the positioning block (10) is provided on the outer side wall of the mounting head (8). A drive mechanism is mounted on the bottom of the bracket (2) and is used to drive the punching mechanism to move. A dust collection mechanism is installed on the top of the bracket (2) for adsorbing and collecting debris generated during the punching process.

2. The finned tube punching device according to claim 1, characterized in that: The driving mechanism includes a hydraulic cylinder (13) installed at the top of the bracket (2). The output end of the hydraulic cylinder (13) extends to the bottom of the bracket (2) and is fixedly connected to the mounting head (8). End plates (14) are fixedly connected to the left and right sides of the outer wall of the mounting head (8). Telescopic rods (15) are fixedly connected between the two end plates (14) and the bracket (2).

3. The finned tube punching device according to claim 1, characterized in that: The dust collection mechanism includes a dust collection box (18) and a vacuum generator (19) installed on the top of the bracket (2). The dust collection box (18) and the vacuum generator (19) are connected by a pipe. An air passage (16) is opened inside the punch (11). A connector (17) communicating with the air passage (16) is fixedly connected to the outer wall of the punch (11). A dust guide pipe (20) is connected between the connector (17) and the vacuum generator (19).

4. The finned tube punching device according to claim 1, characterized in that: The positioning mechanism also includes a slide rail (21) fixedly connected to the upper surface of the workbench (1). The upper surface of the slide rail (21) is slidably connected to two slide plates (22). The two slide plates (22) are fixedly connected to the base plate (3). The outer walls of the two slide plates (22) are threaded with fixing screws (23).

5. The finned tube punching device according to claim 1, characterized in that: The lead screw (5) is a two-way lead screw, with one end extending to the outside of the side plate (4) and fixedly connected to a rotary valve (24).

6. The finned tube punching device according to claim 1, characterized in that: A laser (25) is provided on one side of the lower end face of the mounting head (8).

7. The finned tube punching device according to claim 1, characterized in that: The upper end face of the substrate (3) is fixedly connected with a roller groove (26), and the bottom ends of the two V-shaped clamps (7) are rotatably connected with two rollers (27), and the rollers (27) extend into the interior of the roller groove (26).

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