Punching device for heat exchanger production

Abstract

The utility model belongs to the technical field of drilling, and particularly relates to a punching device for heat exchanger production, which comprises a device shell and a drilling box arranged in the device shell, the surface of the device shell is fixedly connected with a slag discharge pipe, the surface of the slag discharge pipe is fixedly connected with a suction fan through a first mounting seat, and the surface of the suction fan is fixedly connected with a second mounting seat. The surface of the device shell is fixedly connected with an electric push rod through a second mounting seat, an output shaft of the electric push rod penetrates through the device shell and is fixedly connected with a positioning plate, the device further comprises a loading and unloading assembly fixedly connected to the surface of the positioning plate, and the loading and unloading assembly comprises a fixing cylinder fixedly connected to the surface of the positioning plate. An annular groove is formed in the surface of the positioning plate; according to the drilling machine, the drill bit can be limited through cooperation of an inner bevel gear and a first bevel gear, replacement is convenient, meanwhile, a positioning assembly is additionally arranged, and a positioning shell can be limited through cooperation of a first toothed plate and a second toothed plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling, and in particular relates to a punching device for producing a heat exchanger. Background Art

[0002] Heat exchangers are devices used to transfer heat from hot fluid to cold fluid to meet specified process requirements. They are an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to their operation process, they can be divided into three categories: partition type, hybrid type, and heat storage type. According to the compactness of their surface, they can be divided into compact type and non-compact type. The heat exchanger connecting pipes need to be punched before use to facilitate use.

[0003] After checking, the public (announcement) number: CN211192125U discloses a heat exchanger connecting pipe punching device, which discloses "including a shell, the top surface of the shell is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a connecting plate, and the center of the bottom surface of the connecting plate is fixedly connected to a variable speed motor and other technical solutions; it has the technical effects of preventing workers from working in a dusty environment for a long time and affecting their health by setting a glass observation window, an air suction pipe, a filter plate and an induced draft fan;

[0004] However, the drill bit of the punching device is a component that is easily worn and deformed, and it is also necessary to replace the drill bits of different diameters according to different needs, and the punching device is not easy to replace the drill bits;

[0005] In order to solve the above problems, the present application proposes a punching device for heat exchanger production. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a punching device for heat exchanger production, which has the feature of convenient replacement of drill bits.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching device for heat exchanger production, comprising a device shell and a drilling box arranged inside the device shell, a slag discharge pipe is fixedly connected to the surface of the device shell, a suction fan is fixedly connected to the surface of the slag discharge pipe through a first mounting seat, an electric push rod is fixedly connected to the surface of the device shell through a second mounting seat, an output shaft of the electric push rod passes through the device shell and is fixedly connected to a positioning plate, and also includes a loading and unloading assembly fixedly connected to the surface of the positioning plate;

[0008] The loading and unloading assembly includes a fixed cylinder fixedly connected to the surface of the positioning plate, the surface of the positioning plate is provided with an annular groove, and a positioning ring is arranged inside the annular groove, the positioning ring is slidably connected to the positioning plate through the annular groove, the surface of the positioning ring is fixedly connected to a positioning shell, a plurality of first limiting holes are evenly provided inside the fixed cylinder, and a screw sleeve is arranged inside each of the first limiting holes, the screw sleeve is rotatably connected to the fixed cylinder through a bearing, each of the screw sleeves is fixedly connected to a first bevel gear at one end facing the positioning shell, an inner bevel gear is fixedly connected to the inner wall of the positioning shell, the inner bevel gear is meshingly connected to the first bevel gear, the inner thread of the screw sleeve is connected to a screw, and the end of the screw away from the screw sleeve is fixedly connected to a clamp.

[0009] As a preferred punching device for heat exchanger production of the utility model, a plurality of second limiting holes are evenly opened inside the fixed cylinder, and a positioning rod is arranged inside each of the second limiting holes, the positioning rod is slidably connected to the fixed cylinder through the second limiting hole, and the positioning rod is fixedly connected to the corresponding clamping plate.

[0010] As a preferred punching device for heat exchanger production of the utility model, a friction pad is fixedly connected to an adjacent side of each clamping plate.

[0011] As a preferred punching device for heat exchanger production of the utility model, a buffer pad is fixedly connected to the interior of the fixing cylinder.

[0012] As a preferred punching device for heat exchanger production of the utility model, it also includes a positioning component arranged inside the fixing cylinder;

[0013] The positioning assembly includes a limiting groove opened inside the fixed cylinder, and a first tooth plate is arranged inside the limiting groove, the first tooth plate and the fixed cylinder are fixedly connected, a second tooth plate is arranged inside the limiting groove, the second tooth plate is slidably connected to the fixed cylinder through the limiting groove, a plurality of positioning grooves are evenly opened inside the positioning shell, and a connecting rod is arranged inside each of the positioning grooves, the connecting rod is slidably connected through the positioning groove, the connecting rod and the second tooth plate are fixedly connected, and a force ring is fixedly connected to one end of the connecting rod away from the second tooth plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are: a loading and unloading component is added to the present application, and the cooperation between the inner bevel gear and the first bevel gear can be utilized to limit the drill bit, which is convenient for replacement. At the same time, a positioning component is added, and the cooperation between the first tooth plate and the second tooth plate can be utilized to limit the positioning shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a vertical cross-section of the positioning shell in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the first tooth plate and the second tooth plate in the utility model;

[0019] Figure 4 For this utility model Figure 2 The enlarged view of point A in the middle;

[0020] In the figure:

[0021] 1. Device housing; 11. Electric push rod; 12. Positioning plate; 13. Drilling box; 14. Slag discharge pipe; 15. Suction fan;

[0022] 2. Loading and disassembling assembly; 21. Fixing cylinder; 22. Positioning ring; 23. Positioning shell; 24. Internal bevel gear; 25. First bevel gear; 26. Screw sleeve; 27. Screw rod; 28. Clamping plate; 29. ​​Positioning rod; 210. Friction pad; 211. Buffer pad;

[0023] 3. Positioning assembly; 31. First tooth plate; 32. Positioning groove; 33. Second tooth plate; 34. Connecting rod; 35. Force ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1 As shown;

[0027] A punching device for heat exchanger production, comprising a device housing 1 and a drilling box 13 arranged inside the device housing 1, a slag discharge pipe 14 is fixedly connected to the surface of the device housing 1, a suction fan 15 is fixedly connected to the surface of the slag discharge pipe 14 through a first mounting seat, an electric push rod 11 is fixedly connected to the surface of the device housing 1 through a second mounting seat, and an output shaft of the electric push rod 11 passes through the device housing 1 and is fixedly connected to a positioning plate 12;

[0028] In this embodiment: after checking the public (announcement) number: CN211192125U discloses a heat exchanger connecting pipe punching device, in order to solve the technical problems existing in this prior art, such as the above background technology disclosed that "the drill bit of the punching device is a component that is easy to wear and deform, and it is also necessary to replace the drill bits of different diameters according to different needs, and the punching device is not easy to replace the drill bit". In terms of combined use, this problem is obviously a real problem that exists and is relatively difficult to solve. In view of this, in order to solve this technical problem, a loading and unloading component 2 and a positioning component 3 are added on this basis.

[0029] More specifically:

[0030] like Figures 1 to 4 As shown;

[0031] Combining the above:

[0032] In order to facilitate the replacement of the drill bit, the punching device for heat exchanger production also includes a loading and unloading component 2 fixedly connected to the surface of the positioning plate 12;

[0033] The loading and unloading assembly 2 includes a fixed cylinder 21 fixedly connected to the surface of the positioning plate 12, an annular groove is provided on the surface of the positioning plate 12, and a positioning ring 22 is provided inside the annular groove, the positioning ring 22 is slidably connected to the positioning plate 12 through the annular groove, and a positioning shell 23 is fixedly connected to the surface of the positioning ring 22, a plurality of first limiting holes are evenly provided inside the fixed cylinder 21, and a screw sleeve 26 is provided inside each of the first limiting holes, and the screw sleeve 26 is rotatably connected to the fixed cylinder 21 through a bearing, and each screw sleeve 26 is fixed toward one end of the positioning shell 23. A first bevel gear 25 is fixedly connected, an inner bevel gear 24 is fixedly connected to the inner wall of the positioning shell 23, the inner bevel gear 24 and the first bevel gear 25 are meshingly connected, a screw 27 is connected to the inner thread of the screw sleeve 26, and a clamping plate 28 is fixedly connected to the end of the screw 27 away from the screw sleeve 26, a plurality of second limiting holes are evenly opened inside the fixed cylinder 21, and a positioning rod 29 is arranged inside each second limiting hole, the positioning rod 29 is slidably connected to the fixed cylinder 21 through the second limiting hole, and the positioning rod 29 is fixedly connected to the corresponding clamping plate 28.

[0034] In this embodiment: when the drill bit needs to be replaced, force is applied to the positioning shell 23 to make it rotate, the connecting rod 34 will drive the screw sleeve 26 to rotate through the first bevel gear 25, the screw 27 will move in the opposite direction, each clamping plate 28 will move away from the drill bit, and the positioning rod 29 will slide inside the second limiting hole to limit the clamping plate 28, thereby releasing the limit on the drill bit.

[0035] Going further:

[0036] In an optional embodiment, a friction pad 210 is fixedly connected to an adjacent side of each clamping plate 28 .

[0037] In this embodiment, the friction pad 210 will increase the friction on the drill bit when the clamping plate 28 clamps the drill bit, making the clamping tighter.

[0038] Going further:

[0039] In an optional embodiment, a buffer pad 211 is fixedly connected to the interior of the fixing tube 21 .

[0040] In this embodiment, when the drill bit is inserted into the fixing tube 21 , the buffer pad 211 will cushion the drill bit to prevent the drill bit from being severely worn due to hard contact.

[0041] Going further:

[0042] In an optional embodiment, it further includes a positioning assembly 3 disposed inside the fixing cylinder 21;

[0043] The positioning assembly 3 includes a limiting groove opened inside the fixed cylinder 21, and a first tooth plate 31 is arranged inside the limiting groove, the first tooth plate 31 and the fixed cylinder 21 are fixedly connected, a second tooth plate 33 is arranged inside the limiting groove, the second tooth plate 33 is slidably connected to the fixed cylinder 21 through the limiting groove, a plurality of positioning grooves 32 are evenly opened inside the positioning shell 23, and a connecting rod 34 is arranged inside each positioning groove 32, the connecting rod 34 is slidably connected through the positioning groove 32, the connecting rod 34 and the second tooth plate 33 are fixedly connected, and a force ring 35 is fixedly connected to one end of the connecting rod 34 away from the second tooth plate 33.

[0044] In this embodiment: when it is necessary to rotate the positioning shell 23, force is applied to the force ring 35 to move the force ring 35 upward, so that the second tooth plate 33 and the first tooth plate 31 are separated, and then the force ring 35 is rotated, and the positioning shell 23 can be moved until it is rotated to a suitable position, and the force ring 35 is released, and the second tooth plate 33 will mesh with its first tooth plate 31 due to gravity.

[0045] The working principle and use process of the utility model are as follows: when the drill bit needs to be replaced, force is applied to the positioning shell 23 to make it rotate, the connecting rod 34 will drive the screw sleeve 26 to rotate through the first bevel gear 25, the screw 27 will move in the opposite direction, each clamping plate 28 will move away from the drill bit, the positioning rod 29 will slide inside the second limiting hole to limit the clamping plate 28, and the limit on the drill bit will be released. The friction pad 210 will strengthen the friction on the drill bit when the clamping plate 28 clamps the drill bit, so that The clamping is tighter. When the drill bit is inserted into the interior of the fixed tube 21, the buffer pad 211 will cushion the drill bit to prevent severe wear of the drill bit caused by hard contact. When the positioning shell 23 needs to be rotated, force is applied to the force ring 35 to move the force ring 35 upward to separate the second tooth plate 33 and the first tooth plate 31. Then the force ring 35 is rotated, and the positioning shell 23 can be moved until it is rotated to a suitable position. The force ring 35 is released, and the second tooth plate 33 will mesh with its first tooth plate 31 due to gravity.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A punching device for heat exchanger production, comprising a device housing (1) and a drilling box (13) arranged inside the device housing (1), a slag discharge pipe (14) being fixedly connected to the surface of the device housing (1), a suction fan (15) being fixedly connected to the surface of the slag discharge pipe (14) via a first mounting seat, an electric push rod (11) being fixedly connected to the surface of the device housing (1) via a second mounting seat, an output shaft of the electric push rod (11) passing through the device housing (1) and being fixedly connected to a positioning plate (12), characterized in that: It also includes a loading and unloading assembly (2) fixedly connected to the surface of the positioning plate (12); The loading and unloading assembly (2) comprises a fixing cylinder (21) fixedly connected to the surface of the positioning plate (12); the surface of the positioning plate (12) is provided with an annular groove, and a positioning ring (22) is arranged inside the annular groove; the positioning ring (22) is slidably connected to the positioning plate (12) through the annular groove; the surface of the positioning ring (22) is fixedly connected with a positioning shell (23); a plurality of first limiting holes are evenly arranged inside the fixing cylinder (21), and a screw sleeve (23) is arranged inside each first limiting hole. 6), the screw sleeve (26) is rotatably connected to the fixed cylinder (21) through a bearing, one end of each screw sleeve (26) facing the positioning shell (23) is fixedly connected to a first bevel gear (25), the inner wall of the positioning shell (23) is fixedly connected to an inner bevel gear (24), the inner bevel gear (24) and the first bevel gear (25) are meshingly connected, the internal thread of the screw sleeve (26) is connected to a screw rod (27), and one end of the screw rod (27) away from the screw sleeve (26) is fixedly connected to a clamping plate (28).

2. The punching device for heat exchanger production according to claim 1, characterized in that: A plurality of second limiting holes are evenly arranged inside the fixed cylinder (21), and a positioning rod (29) is arranged inside each of the second limiting holes. The positioning rod (29) is slidably connected to the fixed cylinder (21) through the second limiting hole, and the positioning rod (29) is fixedly connected to the corresponding clamping plate (28).

3. The punching device for heat exchanger production according to claim 1, characterized in that: A friction pad (210) is fixedly connected to an adjacent side of each clamping plate (28).

4. The punching device for heat exchanger production according to claim 1, characterized in that: A buffer pad (211) is fixedly connected to the interior of the fixing cylinder (21).

5. The punching device for heat exchanger production according to claim 1, characterized in that: It also includes a positioning assembly (3) arranged inside the fixing cylinder (21); The positioning assembly (3) comprises a limiting groove provided inside the fixed cylinder (21), and a first tooth plate (31) is provided inside the limiting groove, the first tooth plate (31) and the fixed cylinder (21) are fixedly connected, a second tooth plate (33) is provided inside the limiting groove, the second tooth plate (33) is slidably connected to the fixed cylinder (21) through the limiting groove, a plurality of positioning grooves (32) are evenly provided inside the positioning shell (23), and a connecting rod (34) is provided inside each of the positioning grooves (32), the connecting rod (34) is slidably connected through the positioning groove (32), the connecting rod (34) and the second tooth plate (33) are fixedly connected, and a force ring (35) is fixedly connected to one end of the connecting rod (34) away from the second tooth plate (33).

Images