Harmonica-shaped tube machining clamp

Abstract

The utility model discloses a harmonica-shaped tube machining clamp which comprises a supporting frame, a bottom plate, a top plate and a plurality of clamping mechanisms, the supporting frame is arranged on the bottom plate in a surrounding mode, and a supporting space is formed in the supporting frame; a plurality of first punching positions are formed in the top plate, the top plate covers the supporting frame, and each first punching position communicates with the supporting space; the multiple clamping mechanisms are arranged around the periphery of the supporting frame and fixed to the supporting frame, and the multiple clamping mechanisms further fix the top plate to the supporting frame. The harmonica-shaped tube is placed in the supporting space, then the supporting frame is covered with the top plate, the clamping mechanism is arranged on the periphery of the supporting frame in a surrounding mode and fixed to the supporting frame, the top plate is fixed to the supporting frame, and the first punching positions formed in the top plate are consistent with the positions, needing punching, of the harmonica-shaped tube; the harmonica-shaped tube is not prone to loosening and shifting, the problems of hole position deviation and harmonica-shaped tube deformation are avoided, and therefore the harmonica-shaped tube punching precision and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, specifically to a harmonica tube machining fixture. Background Technology

[0002] A harmonica tube is a tubular structure used for heat exchange. It gets its name from the resemblance of its hollow, flat tubes to the structure of a harmonica. It is commonly used in the battery thermal management systems of new energy vehicles to achieve efficient heat dissipation from the battery pack. For example... Figure 1 The diagram shows a three-dimensional structure of a harmonica tube 10. The harmonica tube 10 includes a body with a row of openings 12. Multiple holes 11 are spaced apart along the length of the row of openings 12. During the manufacturing process of the harmonica tube 10, holes need to be drilled at the multiple holes 11 spaced apart along the row of openings 12.

[0003] However, due to the large size, thinness and hollowness of the harmonica tube, it is difficult to control the size and position accuracy of the hole when drilling. This can easily lead to product deformation and dimensional instability. If the hole position is deviated, it will affect the assembly accuracy of the harmonica tube and other components such as the collector, resulting in poor sealing and the risk of leakage. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a harmonica tube processing fixture.

[0005] This utility model discloses a harmonica tube processing fixture, comprising: a support frame, a base plate, a top plate, and multiple clamping mechanisms. The support frame surrounds the base plate, forming a support space within the support frame. The top plate has multiple first drilling positions and covers the support frame, with each first drilling position communicating with the support space. The multiple clamping mechanisms are arranged around the periphery of the support frame and are all fixed to the support frame. The multiple clamping mechanisms also fix the top plate to the support frame.

[0006] According to one embodiment of the present invention, a plurality of first embedding blocks and a plurality of second embedding blocks are provided on the side of the top plate facing the support frame. The plurality of first embedding blocks are arranged in two parallel rows at both ends of the top plate, and each first embedding block in each row corresponds to a first punching position. The plurality of second embedding blocks are arranged in two parallel rows outside the first embedding blocks and are staggered with the plurality of first punching positions.

[0007] According to one embodiment of the present invention, the top plate is further provided with a plurality of first hollow positions, which are symmetrically distributed on the top plate.

[0008] According to one embodiment of the present invention, it also includes a buffer block, and a plurality of buffer grooves are provided on the side of the top plate facing the support frame, and the buffer block is embedded in the buffer grooves.

[0009] According to one embodiment of the present invention, the support frame includes two side plates and two support blocks. Each side plate has a second hollow position and two first grooves. The two first grooves are disposed at both ends of the side plate. The top plate has two first protrusions on the side facing the side plates. The first grooves at one end of the two side plates respectively engage with the two first protrusions. The bottom plate has two second protrusions on the side facing the support space. The first grooves at the other end of the two side plates respectively engage with the two second protrusions, so that the two side plates are positioned opposite each other between the bottom plate and the top plate. The two support blocks are arranged opposite each other and fixed to the two side plates respectively. Multiple clamping mechanisms are fixed to the two side plates respectively.

[0010] According to one embodiment of the present invention, the clamping mechanism includes a driving member and a pressing block. The driving member is fixed on the side plate, and one end of the pressing block is connected to the driving member, while the other end extends to the top plate.

[0011] According to one embodiment of the present invention, the clamping mechanism further includes a rotating component, which includes a fixed block and a rotating connecting rod. The fixed block is mounted on the driving component, one end of the rotating connecting rod is rotatably connected to the fixed block, and the other end of the rotating connecting rod is rotatably connected to the middle of the pressure block.

[0012] According to one embodiment of the present invention, the base plate is further provided with a plurality of second punching positions, a plurality of third hollow positions, a plurality of third embedding blocks and a plurality of fourth embedding blocks. The plurality of third hollow positions are symmetrically distributed on the base plate. The plurality of third embedding blocks and the plurality of second punching positions are arranged on the side of the base plate facing the support frame. The plurality of third embedding blocks are arranged in two parallel rows at both ends of the base plate, and each third embedding block in each row corresponds to a second punching position. The plurality of fourth embedding blocks are arranged in two parallel rows on the outside of the third embedding blocks and are staggered with the plurality of second punching positions.

[0013] According to one embodiment of the present invention, it further includes a rotating mechanism and a base. The rotating mechanism includes a driving device and a rotating shaft. One end of the rotating shaft is connected to the driving device, and the other end of the rotating shaft is fixedly connected to the base. One side plate is fixed on the base, and multiple clamping mechanisms are fixed on the base and the other side plate and face the top plate.

[0014] According to one embodiment of the present invention, it also includes a partition plate, which has a fourth hollowed-out position. The fourth hollowed-out position is centrally located on the partition plate, and the partition plate is located within the support space and is parallel to the two side plates.

[0015] The beneficial effects of this utility model are as follows: the harmonica tube is placed in the support space, and then the top plate is placed on the support frame. That is, the harmonica tube is located inside the support frame, the bottom plate, and the top plate, while the clamping mechanism is arranged around the support frame. It is fixed to the support frame and fixes the top plate on the support frame. In other words, the clamping mechanism plays a clamping and fixing role on the top plate, so that the top plate is stably placed on the support frame. The multiple first drilling positions opened on the top plate are consistent with the positions where the harmonica tube needs to be drilled. Because the harmonica tube is limited and fixed by the support frame, the bottom plate, the top plate, and the clamping mechanism, it is not easy for the harmonica tube to loosen or shift during drilling. There will be no problems of hole position deviation and harmonica tube deformation, thereby improving the accuracy and quality of harmonica tube drilling. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a structural diagram of the harmonica tube in the embodiment;

[0018] Figure 2 This is a schematic diagram of the harmonica tube processing fixture in the embodiment;

[0019] Figure 3 This is an exploded view of the harmonica tube processing fixture in the embodiment;

[0020] Figure 4 This is a schematic diagram of the top plate in the embodiment;

[0021] Figure 5 This is a schematic diagram of the support frame in the embodiment;

[0022] Figure 6 This is a cross-sectional view of the side panel in the embodiment;

[0023] Figure 7 This is a schematic diagram of the base plate in the embodiment;

[0024] Figure 8 This is a schematic diagram of the clamping mechanism in the embodiment;

[0025] Figure 9 This is a cross-sectional view of the clamping mechanism in the embodiment.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Support frame; 11. Support space; 12. Side plate; 121. Second cutout; 122. First groove; 13. Support block;

[0028] 2. Base plate; 21. Second protrusion; 22. Second drilling position; 23. Third hollow position; 24. Third embedded block; 25. Fourth embedded block;

[0029] 3. Top plate; 31. First drilling position; 32. First embedded block; 33. Second embedded block; 34. First hollow position; 35. Buffer groove; 36. First protrusion;

[0030] 4. Clamping mechanism; 41. Driving component; 42. Pressure block; 43. Rotating assembly; 431. Fixing block; 432. Rotating connecting rod;

[0031] 5. Buffer block; 6. Base;

[0032] 7. Partition; 71. Fourth cutout position;

[0033] 10. Harmonica tube; 11. Hole position; 12. Tube opening. Detailed Implementation

[0034] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0035] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Please see Figures 2 to 3 As shown, Figure 2 This is a schematic diagram of the harmonica tube processing fixture in the embodiment. Figure 3This is an exploded view of the harmonica tube processing fixture in this embodiment. This embodiment discloses a harmonica tube processing fixture, including a support frame 1, a base plate 2, a top plate 3, and multiple clamping mechanisms 4. The support frame 1 surrounds the base plate 2, forming a support space 11 within it. The support space 11 is used to support the harmonica tube 10. The top plate 3 has multiple first drilling positions 31, covering the support frame 1. The top plate 3 covers and fixes the harmonica tube 10 located within the support space 11, preventing displacement. The multiple first drilling positions 31 correspond to the positions on the harmonica tube 10 where holes need to be drilled; that is, the first drilling positions 31 correspond to the hole positions 11 on the harmonica tube 10. The multiple clamping mechanisms 4 are arranged around the support frame 1 and are all fixed to the support frame 1. The multiple clamping mechanisms 4 also fix the top plate 3 to the support frame 1, making the top plate 3 less prone to displacement. Consequently, the harmonica tube 10 located within the support space 11 is also fixed, facilitating precise drilling processing.

[0037] In practical applications, the harmonica tube 10 is placed neatly in the support space 11 after the support frame 1 and the base plate 2 are fixed. Then, the top plate 3 is placed on the support frame 1 to cover and fix the harmonica tube 10 in the support space 11. The clamping mechanism 4 surrounding the support frame 1 is then used to further fix the top plate 3 to the support frame 1, making it difficult for the harmonica tube 10 to move within the support space 11. The multiple first drilling positions 31 on the top plate 3 correspond to the positions where the harmonica tube 10 needs to be drilled. The harmonica tube processing fixture with the harmonica tube 10 placed is then moved into the processing equipment for drilling. Due to the use of the harmonica tube processing fixture, the harmonica tube 10 is not easy to loosen or move during drilling. The first drilling positions 31 are aligned with the holes 11 of the harmonica tube 10, and there will be no problems such as hole position 11 deviation or harmonica tube 10 deformation, thereby improving the accuracy and quality of the harmonica tube 10 drilling.

[0038] Further, please refer to Figure 4 As shown, Figure 4As shown in the schematic diagram of the top plate in this embodiment, the top plate 3 is provided with multiple first embedding blocks 32 and multiple embedding blocks 33. The multiple first embedding blocks 32 and multiple embedding blocks 33 are all located on the side of the top plate 3 facing the support frame 1. The multiple first embedding blocks 32 are arranged in two parallel rows at both ends of the top plate 3, and each first embedding block 32 in each row corresponds to a first drilling position 31. The multiple second embedding blocks 33 are arranged in two parallel rows outside the first embedding blocks 32 and are staggered with the multiple first drilling positions 31. Specifically, the shape of the first embedding block 32 matches the opening 12 of the harmonica tube 10, and the first embedding block 32 is used to embed into the opening 12 of the harmonica tube 10. When multiple workpieces are placed in the support space 11 and the top plate is placed on the support frame 1, a first embedding block 32 is embedded in each opening 12, further fixing and defining the position of the harmonica tube 10 and the top plate 3, making the hole position 11 of the harmonica tube 10 correspond more precisely to the first drilling position 31. Multiple embedding blocks 33 are used to embed into the gap between two adjacent harmonica tubes 10, thereby providing support between the harmonica tubes 10 and preventing the harmonica tubes 10 from being squeezed and deformed.

[0039] Furthermore, in this embodiment, the top plate 3 is also provided with a plurality of first hollow positions 34, which are symmetrically distributed on the top plate 3. Specifically, the provision of a plurality of first hollow positions 34 on the top plate 3 is used to reduce the overall weight of the harmonica tube processing fixture, and also to save materials. The symmetrical distribution of the first hollow positions 34 on the top plate 3 is to ensure that the overall force is evenly distributed, maintain balance and stability, and reduce the risk of deformation or damage caused by local stress concentration.

[0040] Furthermore, in this embodiment, the harmonica tube processing fixture also includes a buffer block 5, and the top plate 3 is provided with multiple buffer grooves 35. The buffer grooves 35 are located on the side of the top plate 3 facing the support frame 1, and each buffer block 5 is embedded in a buffer groove 35, that is, each buffer block 5 corresponds to one buffer groove 35. Specifically, the buffer block 5 is made of urethane elastomer, also known as polyurethane (PU) elastomer, which has the rigidity of plastic and the elasticity of rubber. When the top plate 3 covers the harmonica tube 10 located in the support space 11, the buffer block 5 plays a shock-absorbing role when it contacts the harmonica tube 10, and at the same time plays a protective role for the harmonica tube 10. It prevents the top plate 3 from colliding with the harmonica tube 10 due to the material of the top plate 3 being too hard or the force being too great when placing it, thus preventing damage to the harmonica tube 10. In addition, the buffer block 5 can also be made of rubber or other materials with a certain degree of elasticity.

[0041] Further, please refer to Figures 5 to 7 As shown, Figure 5 This is a schematic diagram of the support frame in the embodiment. Figure 6 This is a cross-sectional view of the side panel in the embodiment. Figure 7This is a schematic diagram of the base plate in the embodiment. In this embodiment, the support frame 1 includes two side plates 12 and two support blocks 13. The side plates 12 have a second hollowed-out position 121 and two first grooves 122, which are located at both ends of the side plates 12. The top plate 3 has two first protrusions 36 on the side facing the side plates 12, and the first grooves 122 at one end of each side plate 12 are respectively engaged with the two first protrusions 36. Similarly, the bottom plate 2 has two second protrusions 21 on the side facing the support space 11, and the first grooves 122 at the other end of each side plate 12 are respectively engaged with the two second protrusions 21. Thus, the two side plates 12 are positioned opposite each other between the bottom plate 2 and the top plate 3. In addition, the two support blocks 13 are arranged opposite each other and fixed to the two side plates 12, and multiple clamping mechanisms 4 are respectively fixed to the two side plates 12.

[0042] Specifically, the second cutout 121 is centrally located on the side plate 12. The second cutout 121 reduces the weight of the side plate 12, thereby reducing the overall weight of the harmonica tube processing fixture. The central location of the second cutout 121 on the side plate 12 ensures even force distribution, maintaining balance and stability. The first groove 122 of the side plate 12 and the first protrusion 36 of the top plate 3 allow the first protrusion 36 to engage with the first groove 122 when the top plate 3 is placed on the support frame 1, providing a secure fit. This also simplifies disassembly of the top plate 3 and facilitates the removal of the harmonica tube from the support space 11. Similarly, the first groove 122 of the side plate 12 and the second protrusion 21 of the bottom plate 2 make the assembly of the side plate 12 onto the bottom plate 2 simple, convenient, and stable. Specifically, the bottom plate 2 and the side plate 12 are also fixed with screws, further improving their stability, and the screw fixing also facilitates installation and disassembly.

[0043] Further, please refer to Figure 8 and Figure 9 As shown, Figure 8 This is a schematic diagram of the clamping mechanism in the embodiment. Figure 9 This is a cross-sectional view of the clamping mechanism in the embodiment. In this embodiment, the clamping mechanism 4 further includes a driving member 41 and a pressing block 42. The driving member 41 is fixed to the side plate 12, with its driving end facing away from the side plate 12. One end of the pressing block 42 is connected to the driving member 41, and the other end extends above the top plate 3. When the harmonica tube 10 is placed on the support frame 1, the top plate 3 covers the support frame 1. Driven by the driving member 41, one end of the pressing block 42 presses the top plate 3 against the support frame 1 to maintain the stability of the top plate 3, thereby maintaining the stability of the harmonica tube 10 located within the support frame 1.

[0044] Specifically, the clamping mechanism 4 also includes a rotating assembly 43, which includes a fixed block 431 and a rotating connecting rod 432. The fixed block 431 is mounted on the driving member 41 and located between the driving member 41 and the pressure block 42. One end of the rotating connecting rod 432 is rotatably connected to the fixed block 431, and one end of the pressure block 42 is rotatably connected to the driving member 41. The middle part of the pressure block 42 is rotatably connected to the other end of the rotating connecting rod 432, and the other end of the pressure block 42 is located above the top plate 3. During operation, the driving member 41 pushes one end of the pressure block 42 upward. At this time, the pressure block 42 rotates with the rotating connecting rod 432, and the rotating connecting rod 432 also rotates with the fixed block 431. In this way, using the lever principle, the other end of the pressure block 42 presses the top plate 3 tightly against the support frame 1, thereby effectively improving the clamping effect, preventing the harmonica tube 10 from shaking, and further improving the stability of production.

[0045] Furthermore, review Figure 7 As shown, in this embodiment, the base plate 2 is provided with a plurality of second punching positions 22, a plurality of third cutout positions 23, a plurality of third embedding blocks 24 and a plurality of fourth embedding blocks 25. The plurality of third cutout positions 23 are symmetrically distributed on the base plate 2. The plurality of third embedding blocks 24 and the plurality of fourth embedding blocks 25 are all located on the side of the base plate 2 facing the support frame 1. The plurality of third embedding blocks 24 are arranged in two parallel rows at both ends of the base plate 2, and each third embedding block 24 in each row corresponds to a second punching position 22. The plurality of fourth embedding blocks 25 are arranged in two parallel rows on the outside of the third embedding blocks 24 and are staggered with the plurality of second punching positions 22.

[0046] Specifically, multiple third cutouts 23 are provided on the base plate 2 to reduce the overall weight of the harmonica tube processing fixture and save materials. The first cutouts 34 are symmetrically distributed on the base plate 2 to ensure uniform stress distribution, maintain balance and stability, and reduce the risk of deformation or damage caused by local stress concentration.

[0047] Specifically, the third embedding block 24 on the base plate 2 is shaped to match the opening 12 of the harmonica tube 10, and the opening 12 of the harmonica tube 10 fits into the third embedding block 24. When multiple harmonica tubes 10 are placed in the support space 11, a third embedding block 24 is embedded in each opening 12, further fixing and defining the position of the harmonica tube 10 and the base plate 2, making the hole 11 of the harmonica tube 10 correspond more precisely to the second drilling position 22. The fourth embedding block 24 is used to embed into the gap between the inlet tube 10 and the harmonica tube 10, thereby forming a supporting force between the harmonica tubes 10 and preventing the harmonica tubes 10 from being squeezed and deformed.

[0048] Furthermore, the harmonica tube processing fixture also includes a rotating mechanism and a base 6. The rotating mechanism includes a drive device and a rotating shaft. One end of the rotating shaft is connected to the drive device, and the other end of the rotating shaft is fixedly connected to the base 6. One side plate 12 is fixed on the base 6, and multiple clamping mechanisms 4 are fixed on the base 6 and the other side plate 12, facing the top plate 3. With the setting of the rotating mechanism and the base 6, when the harmonica tube processing fixture is used to process and drill holes for the harmonica tube 10, after drilling the hole 11 at one end, it is not necessary to remove the harmonica tube 10 and place it at the other end for drilling. It is only necessary to start the rotating mechanism, drive the rotating shaft to rotate, and the rotating shaft drives the base 6 to rotate, so that the bottom plate 2 rotates to the original position of the top plate 3, and drills the second drilling position 22 of the bottom plate 2. The hole 11 at the other end of the harmonica tube 10 is successfully processed. Then the harmonica tube processing fixture is removed, thereby removing the harmonica tube 10 with the holes 11 processed at both ends.

[0049] Furthermore, review Figure 2 and Figure 3 As shown, the harmonica tube processing fixture also includes a partition 7. The partition 7 has a fourth cutout 71, which is centrally located on the partition 7. The fourth cutout 71 is used to reduce the overall weight of the harmonica tube processing fixture and save materials. The central location of the fourth cutout 71 on the partition 7 ensures even force distribution and maintains balance and stability. The partition 7 is located inside the support space 11 and is parallel to the two side plates 12. The partition 7 provides support for the harmonica tubes 10, allowing more harmonica tubes 10 to be processed without causing mutual compression and deformation due to multiple layers of harmonica tubes 10 stacked together.

[0050] In practical applications, the harmonica tube 10 to be processed is placed in the support space 11. The tube opening 12 of the harmonica tube 10 facing the base plate 2 is fitted with the third embedding block 24 of the base plate 2. The fourth embedding block 25 is embedded in the gap between the inlet tube 10 and the harmonica tube 10, thereby fixing and aligning the hole 11 of the harmonica tube 10 with the second drilling position 22 of the base plate 2. Then, the top plate 3 is placed on the support frame 1. The first protrusion 36 of the top plate 3 and the first groove 122 of the two side plates 12 are fitted together, thereby fixing the top plate 3 on the support frame 1. The first embedding block 32 of the top plate 3 is fitted with the tube opening 12 of the harmonica tube 10 facing the top plate 3. The second embedding block 33 is embedded in the gap between the inlet tube 10 and the harmonica tube 10, and the first drilling position 31 of the top plate 3 corresponds precisely to the hole 11 of the harmonica tube 10. Next, the drive unit 41 is activated. When the drive unit 41 is working, it pushes one end of the pressure block 42 upward. At this time, the pressure block 42 rotates with the rotating connecting rod 432, and the rotating connecting rod 432 also rotates with the fixed block 431. In this way, using the lever principle, the other end of the pressure block 42 presses the top plate 3 tightly against the support frame 1, thereby effectively improving the pressing effect, preventing the harmonica tube 10 from shaking, and further improving the stability of production. When the processing equipment finishes processing the hole 11 of the harmonica tube 10 corresponding to the top plate 3, the rotating mechanism is activated. The rotating mechanism drives the rotating shaft to rotate, and the rotating shaft drives the base 6 to rotate, so that the bottom plate 2 rotates to the original position of the top plate 3. The processing equipment performs the drilling operation on the second drilling position 22 of the bottom plate 2, and successfully processes the hole 11 of the harmonica tube 10 facing the bottom plate 2. The holes 11 at both ends of the harmonica tube 10 are placed into the harmonica tube processing fixture for processing in one go, thereby improving production efficiency and reducing the labor intensity of workers.

[0051] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A harmonica tube processing jig characterized by, The utility model relates to a kind of supporting frame, bottom plate, top plate and multiple clamping mechanisms, the supporting frame is surrounded in the bottom plate, and the supporting space is formed in the supporting frame;The top plate is provided with multiple first punching sites, and the top plate is covered on the supporting frame;Multiple clamping mechanisms are arranged around the supporting frame and are fixed on the supporting frame, and multiple clamping mechanisms also fix the top plate on the supporting frame. The top plate is provided with multiple first embedding blocks and multiple second embedding blocks on the side towards the supporting frame, and multiple first embedding blocks are divided into two rows and arranged in parallel on the two ends of the top plate, and each first embedding block in each row corresponds to a first punching site, and multiple second embedding blocks are divided into two rows and arranged in parallel on the outside of the first embedding block and staggered with multiple first punching sites.

2. The harmonica tube processing jig according to claim 1, characterized by The top plate is also provided with multiple first hollow sites, and the first hollow sites are symmetrically distributed on the top plate.

3. The harmonica tube processing jig according to claim 2, characterized by The top plate is provided with multiple buffer grooves on the side towards the supporting frame, and the buffer block is embedded in the buffer groove.

4. The harmonica tube processing jig according to any one of claims 1 to 3, characterized by The supporting frame includes two side plates and two supporting blocks, each side plate is provided with a second hollow site and two first grooves, two first grooves are arranged at the two ends of the side plate, the top plate is provided with two first protrusions on the side towards the side plate, the first groove of one end of two side plates is respectively embedded with two first protrusions, the bottom plate is provided with two second protrusions on the side facing the supporting space, the first groove of the other end of two side plates is respectively embedded with two second protrusions, so that two side plates are arranged opposite between the bottom plate and the top plate, two supporting blocks are arranged opposite and are respectively fixed on two side plates, and multiple clamping mechanisms are respectively fixed on two side plates.

5. The harmonica tube processing jig according to claim 4, wherein The clamping mechanism includes a driving member and a pressing block, the driving member is fixed on the side plate, one end of the pressing block is connected to the driving member, and the other end extends above the top plate.

6. The harmonica tube processing jig according to claim 5, wherein ​ 7. The harmonica tube processing jig according to claim 6, wherein The clamping mechanism (4) further comprises a rotating assembly (43), the rotating assembly (43) comprises a fixed block (431) and a rotating connecting rod (432), the fixed block (431) is installed on the driving piece (41), one end of the rotating connecting rod (432) is rotatably connected to the fixed block (431), and the other end of the rotating connecting rod (432) is rotatably connected to the middle portion of the pressing block (42).

8. The harmonica tube processing jig according to claim 6, wherein A plurality of second punching positions (22), a plurality of third hollow positions (23), a plurality of third embedded blocks (24) and a plurality of fourth embedded blocks (25) are further formed in the bottom plate (2), the plurality of third hollow positions (23) are symmetrically distributed on the bottom plate (2), the plurality of third embedded blocks (24) and the plurality of second punching positions (22) are arranged on one side of the bottom plate (2) facing the support frame (1), the plurality of third embedded blocks (24) are arranged in two rows in parallel at two ends of the bottom plate (2), and each third embedded block (24) in each row corresponds to one second punching position (22), and the plurality of fourth embedded blocks (25) are arranged in two rows in parallel outside the third embedded blocks (24) and are arranged in a staggered manner with the plurality of second punching positions (22).

9. The harmonica tube processing jig according to claim 8, wherein The rotating mechanism and the base (6) are further included, the rotating mechanism comprises a driving device and a rotating shaft, one end of the rotating shaft is connected with the driving device, the other end of the rotating shaft is fixedly connected with the base (6), one side plate (12) is fixed on the base (6), and a plurality of clamping mechanisms (4) are fixed on the base (6) and the other side plate (12) and face the top plate (3).

10. The harmonica tube processing jig according to claim 8, wherein The partition plate (7) is further included, the partition plate (7) is provided with a fourth hollow position (71), the fourth hollow position (71) is arranged in the center of the partition plate (7), and the partition plate (7) is arranged in the support space (11) and parallel to the two side plates (12).

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