Machining jig for side plate of heat exchanger
By designing a processing fixture for the heat exchanger side plate, and using a combination structure of the tool mold fixing plate and the lower template for punching and edge cutting, the problem of difficult to process side plates in the prior art is solved, and high-precision processing and cost reduction are achieved.
Patent Information
- Application Number
- CN202421179596.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-27
AI Technical Summary
It is difficult for existing heat exchanger side plate processing tools to effectively process side plates with complex shapes and irregular sizes, resulting in poor product accuracy and quality, and problems of waste of raw materials and high costs.
A processing fixture for the side plate of the heat exchanger is designed, and a combination structure of the tool mold fixing plate and the lower template is adopted. By setting relatively placed and parallel tools for punching and cutting edge processing, the product is reduced, and the product is fixed through the initial positioning insert set and the positioning insert set to avoid displacement.
High-precision processing of heat exchanger side plates with complex shapes and irregular sizes is achieved, reducing raw material waste and cost, and improving product accuracy and quality.
Smart Images
Figure CN222587820U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to a sheet metal processing jig, in particular to a processing jig for a side plate of a heat exchanger. [Background technology]
[0002] The side plate of a heat exchanger is a commonly used sheet metal structure. At present, the processing of the side plate of a heat exchanger is mostly carried out with processing jigs. Traditional heat exchanger side plate processing jigs are usually only suitable for processing side plates of specific shapes or sizes, and the processing effect is not good for side plates with complex shapes and irregular sizes. At the same time, during processing, the problem of stress concentration in the process of cutting sheet metal is rarely considered, resulting in certain deformation of the product, resulting in poor product accuracy and quality, and also causing waste of raw materials and increasing costs.
[0003] For this reason, the present invention is studied and proposed in view of the above-mentioned problems. [Contents of the utility model]
[0004] The utility model aims to overcome the deficiencies of the prior art and provide a processing jig for a heat exchanger side plate, which can process a heat exchanger side plate with higher precision, avoid waste of raw materials and reduce costs.
[0005] The utility model is realized by the following technical scheme: a processing jig for a side plate of a heat exchanger, the side plate of the heat exchanger is an irregular polygon, comprising a side, a through hole penetrating the inside and outside of the side plate of the heat exchanger, a groove arranged in the middle of the plate, a first folded edge and a second folded edge, the side comprises a circular arc segment connected in a trend, a first side, a second side, a third side, a fourth side, a fifth side, a sixth side and a seventh side, the through hole comprises a first through hole arranged beside the seventh side, a second through hole arranged beside the first through hole, a third through hole arranged beside the second side and the third side, a fourth through hole arranged beside the third through hole, a fifth through hole arranged beside the third side line and the fourth side line and a sixth through hole arranged beside the sixth side line, the groove comprises a first groove, a second groove and a third groove arranged in parallel and of unequal lengths, and the processing jig for the side plate of the heat exchanger comprises:
[0006] A die cutting plate, comprising a first punch, a second punch, a third punch, a fourth punch arranged in the middle of the die cutting plate, and die cutting holes evenly arranged around the die cutting plate, wherein the first punch, the second punch, the third punch and the fourth punch are all made of hard alloy, the first punch is used for trimming to obtain a first side edge of a heat exchanger side plate, the second punch is used for trimming to obtain a fifth side edge of the heat exchanger side plate, the third punch is used for punching to obtain a first through hole of the heat exchanger side plate, and the fourth punch is used for punching to obtain a fourth through hole of the heat exchanger side plate;
[0007] The lower mold plate comprises an initial positioning insert group, a positioning insert group and lower mold fixing holes distributed on the periphery of the plate.
[0008] The first punch is an irregular polygon, including a first punch side edge, a first straight cutting edge, a first arc cutting edge and a second straight cutting edge connected in a trend; the second punch is an irregular polygon, including a second punch side edge and a second arc cutting edge connected in a trend.
[0009] The first punch and the second punch are fixedly connected to the middle position of the die cutting plate, the first punch and the second punch are arranged in parallel up and down and the first punch is arranged at the upper part relative to the second punch, and the third punch and the fourth punch are fixedly connected to the die cutting plate and are on the same horizontal line.
[0010] The lower mold plate is provided with an initial positioning insert group, a positioning insert group and lower mold fixing holes distributed on the periphery of the plate, the initial positioning insert group includes a first initial positioning insert and a second initial positioning insert, and the positioning insert group includes a first insert, a second insert, a third insert, a fourth insert, a fifth insert, a sixth insert, a seventh insert and an eighth insert.
[0011] The initial positioning insert set and the positioning insert set are both fixedly connected to the lower template.
[0012] The initial positioning insert set and the positioning insert set are both made of hard alloy.
[0013] The first initial positioning insert and the second initial positioning insert are arranged in the middle position of the lower template, the first initial positioning insert and the second initial positioning insert are placed parallel to each other up and down, and the first initial positioning insert is arranged above the second initial positioning insert, the first insert is arranged between the first initial positioning insert and the second initial positioning insert, and the second insert, the third insert, the fourth insert, the fifth insert, the sixth insert, the seventh insert, the eighth insert and the ninth insert are dispersed on both sides of the positioning insert group.
[0014] The initial positioning insert group is used for the initial positioning of the side plate of the heat exchanger. At the same time, the first initial positioning insert is used to avoid the first punch, the second initial positioning insert is used to avoid the second punch, the first insert is used to avoid the third punch, the second insert is used to avoid the fourth punch, the third insert is close to the second side edge, the fourth insert is close to the third side edge, the fifth insert is close to the fourth side edge, the sixth insert is close to the sixth side edge, the seventh insert is close to the seventh side edge, and the ninth insert is close to the first folding edge.
[0015] The knife die fixing hole cooperates with the bolt to fix the knife die fixing plate as a whole, and the lower die fixing hole cooperates with the bolt to fix the lower die plate as a whole.
[0016] Compared with the prior art, the utility model has the following advantages:
[0017] 1. By setting the tools that are relatively placed and in parallel, the edges of both sides of the raw material can be trimmed at the same time while punching the raw material, which reduces the overall deformation of the product, ensures the accuracy and quality of the product, and reduces costs.
[0018] 2. Set the first punch and the second punch to ensure that the punch can fit the two extended sides of the corner when cutting the raw material, reduce stress concentration here, and improve product precision. At the same time, conventional fixtures cut the corner and the two sides extending from the corner at the same time by setting a larger tool, which will increase the cost and the quality of the cut product is relatively low.
Brief Description of the Drawings
[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:
[0020] Figure 1 It is a top view of the side plate of the heat exchanger of the present utility model.
[0021] Figure 2 It is a front view of the side plate of the heat exchanger of the present utility model.
[0022] Figure 3 It is an overall cross-sectional view of the fixture of the present utility model.
[0023] Figure 4 It is a top view of the knife die fixing plate of the utility model.
[0024] Figure 5 It is a top view of the lower template of the utility model.
[0025] Figure 6 It is a top view of the first punch of the utility model.
[0026] Figure 7 It is a top view of the second punch of the utility model. [Specific implementation method]
[0027] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.
[0028] Reference Figure 1-7 , is the first embodiment of the utility model, such as Figure 1-3As shown, a processing jig for a heat exchanger side plate, the heat exchanger side plate 1 is an irregular polygon, including a side 11, a through hole 12 running through the inside and outside of the heat exchanger side plate 1, a groove 13 arranged in the middle of the plate, a first folded edge 14 and a second folded edge 15, the side 11 includes a circular arc segment s connected in a forward direction, a first side 111, a second side 112, a third side 113, a fourth side 114, a fifth side 115, a sixth side 116 and a seventh side 117, the through hole 12 includes a groove 13 arranged in the middle of the plate, and a first folded edge 14 and a second folded edge 15. A first through hole 121 next to the side 117, a second through hole 122 arranged next to the first through hole 121, a third through hole 123 arranged next to the second side 112 and the third side 113, a fourth through hole 124 arranged next to the third through hole 123, a fifth through hole 125 arranged next to the third side line 113 and the fourth side line 114, and a sixth through hole 126 arranged next to the sixth side line 116, the groove 13 includes a first groove 131, a second groove 132 and a third groove 133 arranged in parallel and of unequal lengths.
[0029] like Figure 1-5 As shown, a processing jig for a heat exchanger side plate includes:
[0030] The die plate 2 comprises a first punch 21, a second punch 22, a third punch 23, a fourth punch 24 arranged in the middle of the die plate 2 and die fixing holes 25 evenly arranged around the die plate 2, wherein the first punch 21, the second punch 22, the third punch 23 and the fourth punch 24 are all made of cemented carbide, the first punch 21 is used for trimming to obtain the first side edge 111 of the heat exchanger side plate 1, the second punch 22 is used for trimming to obtain the fifth side edge 115 of the heat exchanger side plate 1, the third punch 23 is used for punching to obtain the first through hole 121 of the heat exchanger side plate 1, and the fourth punch 24 is used for punching to obtain the fourth through hole 124 of the heat exchanger side plate 1;
[0031] The lower mold plate 3 includes an initial positioning insert set 31, a positioning insert set 32 and lower mold fixing holes 33 distributed on the periphery of the plate.
[0032] like Figure 6-7 As shown, the first punch 21 is an irregular polygon, including a first punch side 211, a first straight cutting edge 212, a first arc cutting edge 213 and a second straight cutting edge 214 connected in a trend; the second punch 22 is an irregular polygon, including a second punch side 221 and a second arc cutting edge 222 connected in a trend.
[0033] In this embodiment, when the first punch 21 is cutting edges, the first straight cutting edge 212 coincides with the first side 11 of the heat exchanger side plate 1, the first arc cutting edge 213 coincides with the arc segment s, and the second straight cutting edge 214 coincides with the seventh side 17. At this time, the first side 11 and the arc segment s can be smoothly obtained by cutting edges. Other common situations are that a tool is usually provided for cutting the first side 11, the seventh side 17 and the arc segment s. Compared with the common situation, in this embodiment, when the first punch 21 cuts the arc segment s and the first side 11, a second straight cutting edge 214 coincides with the seventh side 17 is also provided, thereby reducing the deformation of the side plate at this point during processing, thereby improving the product precision and quality.
[0034] refer to Figure 1-7 This is the second embodiment of the utility model, wherein the first punch 21 and the second punch 22 are fixedly connected to the middle position of the die cutting plate 2, the first punch 21 and the second punch 22 are arranged in parallel up and down, and the first punch 21 is arranged at the upper part relative to the second punch 22, and the third punch 23 and the fourth punch 24 are fixedly connected to the die cutting plate 2 and are on the same horizontal line.
[0035] The lower mold plate is provided with an initial positioning insert group, a positioning insert group and lower mold fixing holes distributed on the periphery of the plate, the initial positioning insert group includes a first initial positioning insert and a second initial positioning insert, and the positioning insert group includes a first insert, a second insert, a third insert, a fourth insert, a fifth insert, a sixth insert, a seventh insert and an eighth insert.
[0036] The initial positioning insert set 31 and the positioning insert set 32 are both fixedly connected to the lower template 3 .
[0037] The initial positioning insert set 31 and the positioning insert set 32 are both made of hard alloy.
[0038] The first initial positioning insert 311 and the second initial positioning insert 312 are arranged in the middle position of the lower template 3, the first initial positioning insert 311 and the second initial positioning insert 312 are placed parallel to each other up and down, and the first initial positioning insert 311 is arranged above the second initial positioning insert 312, the first insert 321 is arranged between the first initial positioning insert 311 and the second initial positioning insert 312, the second insert 322, the third insert 323, the fourth insert 324, the fifth insert 325, the sixth insert 326, the seventh insert 327, the eighth insert 328 and the ninth insert 329 are dispersedly arranged on both sides of the positioning insert group 31.
[0039] The initial positioning insert group 31 is used for the initial positioning of the heat exchanger side plate 1. At the same time, the first initial positioning insert 311 is used to avoid the first punch 21, the second initial positioning insert 312 is used to avoid the second punch 22, the first insert 321 is used to avoid the third punch 23, the second insert 322 is used to avoid the fourth punch 24, the third insert 323 is close to the second side 112, the fourth insert 324 is close to the third side 113, the fifth insert 325 is close to the fourth side 114, the sixth insert 326 is close to the sixth side 116, the seventh insert 327 is close to the seventh side 117, and the ninth insert 329 is close to the first folding edge 14.
[0040] The knife die fixing hole 25 cooperates with bolts to fix the knife die fixing plate 2 as a whole, and the lower die fixing hole 33 cooperates with bolts to fix the lower die plate 3 as a whole.
[0041] In this embodiment, the first punching hole 21 and the second punching hole 22 are placed opposite to each other and parallel to each other, and the third punching hole 3 and the fourth punching hole 4 are placed opposite to each other and are on the same horizontal line. During the punching and trimming process of the product, it is ensured that both ends of the product can be stressed at the same time, reducing product deformation and improving product precision and quality. At the same time, the lower template 3 is provided with an initial positioning insert group 31 and a positioning insert group 32, which are used to fix each edge of the product, reduce the displacement of the product during the processing, and ensure the precision of product processing. The initial positioning insert group 31 and the positioning insert group 32 are both detachable for easy replacement or maintenance.
Claims
1. A processing jig for a heat exchanger side plate, the heat exchanger side plate (1) being an irregular polygon, comprising a side edge (11), a through hole (12) penetrating the inside and outside of the heat exchanger side plate (1), a groove (13) arranged in the middle of the plate, a first folded edge (14) and a second folded edge (15), the side edge (11) comprising a circular arc segment (s) connected in a forward direction, a first side edge (111), a second side edge (112), a third side edge (113), a fourth side edge (114), a fifth side edge (115), a sixth side edge (116) and a seventh side edge (117), the through hole (12) comprising a groove (13) arranged in the middle of the plate 17), a first through hole (121) arranged next to the first through hole (121), a second through hole (122) arranged next to the first through hole (121), a third through hole (123) arranged next to the second side (112) and the third side (113), a fourth through hole (124) arranged next to the third through hole (123), a fifth through hole (125) arranged next to the third side (113) and the fourth side (114), and a sixth through hole (126) arranged next to the sixth side (116), the groove (13) comprising a first groove (131), a second groove (132) and a third groove (133) arranged in parallel and of unequal lengths, characterized in that The processing jig of the heat exchanger side plate includes: A die-cutting plate (2), comprising a first punch (21), a second punch (22), a third punch (23), a fourth punch (24) arranged in the middle of the die-cutting plate (2), and die-cutting holes (25) evenly arranged around the die-cutting plate (2), wherein the first punch (21), the second punch (22), the third punch (23) and the fourth punch (24) are all made of hard alloy, the first punch (21) is used for trimming to obtain the arc segment s and the first side edge (111) of the heat exchanger side plate (1), the second punch (22) is used for trimming to obtain the fifth side edge (115) of the heat exchanger side plate (1), the third punch (23) is used for punching to obtain the first through hole (121) of the heat exchanger side plate (1), and the fourth punch (24) is used for punching to obtain the fourth through hole (124) of the heat exchanger side plate (1); The lower mold plate (3) comprises an initial positioning insert group (31), a positioning insert group (32), and lower mold fixing holes (33) distributed on the periphery of the plate.
2. A heat exchanger side plate processing jig as claimed in claim 1, characterized in that: The first punch (21) is an irregular polygon, comprising a first punch side edge (211), a first straight cutting edge (212), a first circular cutting edge (213), and a second straight cutting edge (214) connected in a linear manner; the second punch (22) is an irregular polygon, comprising a second punch side edge (221) and a second circular cutting edge (222) connected in a linear manner.
3. A processing jig for a heat exchanger side plate as claimed in claim 2, characterized in that: The first punch (21) and the second punch (22) are fixedly connected to the middle position of the die cutting plate (2); the first punch (21) and the second punch (22) are arranged in parallel up and down, and the first punch (21) is arranged at the upper part relative to the second punch (22); the third punch (23) and the fourth punch (24) are fixedly connected to the die cutting plate (2) and are located on the same horizontal line.
4. A heat exchanger side plate processing jig as claimed in claim 3, characterized in that: The initial positioning insert group (31) comprises a first initial positioning insert (311) and a second initial positioning insert (312); the positioning insert group (32) comprises a first insert (321), a second insert (322), a third insert (323), a fourth insert (324), a fifth insert (325), a sixth insert (326), a seventh insert (327) and an eighth insert (328).
5. A processing jig for a heat exchanger side plate as claimed in claim 4, characterized in that: The initial positioning insert set (31) and the positioning insert set (32) are both fixedly connected to the lower template (3).
6. A heat exchanger side plate processing jig as claimed in claim 5, characterized in that: The initial positioning insert set (31) and the positioning insert set (32) are both made of hard alloy.
7. A heat exchanger side plate processing jig as claimed in claim 6, characterized in that: The first initial positioning insert (311) and the second initial positioning insert (312) are arranged in the middle position of the lower template (3), the first initial positioning insert (311) and the second initial positioning insert (312) are placed in parallel up and down, and the first initial positioning insert (311) is arranged above the second initial positioning insert (312), the first insert (321) is arranged between the first initial positioning insert (311) and the second initial positioning insert (312), and the second insert (322), the third insert (323), the fourth insert (324), the fifth insert (325), the sixth insert (326), the seventh insert (327), the eighth insert (328) and the ninth insert (329) are dispersedly arranged on both sides of the initial positioning insert group (31).
8. A heat exchanger side plate processing jig as claimed in claim 7, characterized in that: The initial positioning insert group (31) is used for initial positioning of the heat exchanger side plate (1); at the same time, the first initial positioning insert (311) is used to avoid the first punch (21), the second initial positioning insert (312) is used to avoid the second punch (22), the first insert (321) is used to avoid the third punch (23), the second insert (322) is used to avoid the fourth punch (24), the third insert (323) is close to the second side edge (112), the fourth insert (324) is close to the third side edge (113), the fifth insert (325) is close to the fourth side edge (114), the sixth insert (326) is close to the sixth side edge (116), the seventh insert (327) is close to the seventh side edge (117), and the ninth insert (329) is close to the first folded edge (14).
9. A heat exchanger side plate processing jig as claimed in claim 1, characterized in that: The knife die fixing hole (25) cooperates with the bolt to fix the knife die fixing plate (2) as a whole, and the lower die fixing hole (33) cooperates with the bolt to fix the lower die plate (3) as a whole.