A high-precision cutting mechanism

Abstract

The application provides a high-precision cutting mechanism for cutting the insulating heat-shrink sleeve on the copper bar body after heat bonding, which comprises a rack, a positioning assembly, a first cutting assembly and a second cutting assembly. The positioning assembly is arranged on the rack and is used for positioning the copper bar body when the copper bar body moves in a first horizontal direction, so that the heat-shrink sleeve on the copper bar body is located at a preset cutting position. The cutting end of the first cutting assembly is arranged on the rack, and the first cutting assembly cuts the heat-shrink sleeve on both sides of the cutting position in a vertical direction after positioning. The cutting end of the second cutting assembly is arranged on the rack and is arranged in abutment with the cutting end of the first cutting assembly, and the second cutting assembly cuts the heat-shrink sleeve on both ends of the cutting position in a second horizontal direction after positioning. In this way, the accurate cutting of the four sides of the end of the heat-shrink sleeve at the preset position is realized, a cutting method with high cutting precision and good consistency of finished products is provided, and the production efficiency and product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, and in particular to a high-precision cutting mechanism. Background Technology

[0002] During the assembly of new energy batteries, it is usually necessary to fit an insulating heat-shrink sleeve over the copper busbar to achieve insulation and mechanical protection. After the heat-shrink sleeve is fitted, it is heated to shrink and fit tightly against the surface of the copper busbar, thereby improving insulation performance and safety.

[0003] However, in actual production, the length of the heat shrink sleeve becomes somewhat unstable after heating. To ensure the yield rate, a certain length is usually reserved before the heat shrink sleeve is installed to compensate for dimensional changes during heating and shrinkage. However, after heating and bonding with the copper busbar, the heat shrink sleeve often exceeds the intended installation position, adversely affecting the electrical performance and heat dissipation of the copper busbar. Therefore, the excess portion needs to be trimmed.

[0004] Currently, the cutting process of heat shrink tubing usually relies on manual operation. Operators use scissors or manual tools to cut, which cannot ensure the specific cutting position, resulting in problems such as inconsistent cutting lengths, thus affecting the stability of mass production and product quality. Utility Model Content

[0005] The purpose of this application is to provide a high-precision cutting mechanism to solve the problem of poor precision in cutting heat shrink sleeves on copper busbars in the prior art.

[0006] To achieve this objective, the following technical solution is adopted in this application:

[0007] This application provides a high-precision cutting mechanism for cutting the heat-shrinkable insulating sleeve that has been heat-bonded onto a copper busbar body. The high-precision cutting mechanism includes a frame, a positioning assembly, a first cutting assembly, and a second cutting assembly, wherein:

[0008] The positioning component is mounted on the frame and is configured to position the copper busbar body as it moves along the first horizontal direction, so that the heat shrink sleeve on the copper busbar body is located at the preset cutting position.

[0009] The cutting end of the first cutting component is mounted on the frame. The first cutting component is configured to cut the positioned heat shrink sleeve on both sides of the vertical direction at the cutting position. The cutting end of the second cutting component is mounted on the frame and fits against the cutting end of the first cutting component. The second cutting component is configured to cut the positioned heat shrink sleeve at both ends of the second horizontal direction at the cutting position.

[0010] Optionally, the positioning component includes a positioning block. The positioning block has a first positioning surface and a second positioning surface at one end near the copper busbar along a first horizontal direction. The first positioning surface is set along the horizontal direction and is configured to position the first end of the copper busbar body in the vertical direction during feed movement. The second positioning surface is set along the vertical direction and is configured to position the copper busbar body along the first horizontal direction.

[0011] Optionally, the first cutting assembly includes a first drive assembly, a first cutting blade, and a second cutting blade, wherein:

[0012] The fixed end of the first drive assembly is mounted on the frame, and the drive end of the first drive assembly is connected to the first cutting blade and / or the second cutting blade. The first cutting blade and the second cutting blade are mounted on the side of the positioning block that extends along the second horizontal direction and is close to the heat shrink sleeve. The first cutting blade and the second cutting blade extend along the second horizontal direction respectively. The first drive assembly is configured to drive the first cutting blade and / or the second cutting blade to move up and down so that the first cutting blade and the second cutting blade move closer to each other or further away from each other.

[0013] Optionally, the first cutting blade is positioned directly below the second cutting blade and is fixedly mounted on the frame, with the top of the first cutting blade and the first positioning surface on the same plane. The driving end of the first driving assembly is connected to the second cutting blade so that when the second cutting blade moves vertically close to the first cutting blade, it cooperates with the first cutting blade to cut the heat shrink sleeve on both sides in the vertical direction.

[0014] Optionally, the positioning assembly further includes a positioning plate that extends along a second horizontal direction and is vertically disposed on the frame on the side of the first and second cutting blades away from the positioning block along the first horizontal direction. One end of the positioning plate along the second horizontal direction extends vertically and is provided with a third positioning surface, which is configured to limit the heat shrink sleeve along the second horizontal direction.

[0015] Optionally, the positioning component further includes a first adjustment component and a second adjustment component, wherein:

[0016] Both the first adjustment component and the second adjustment component are mounted on the frame. The adjustment end of the first adjustment component is connected to the positioning block. The first adjustment component is configured to drive the positioning block to reciprocate along a first horizontal direction. The second adjustment component is configured to adjust the relative position of the positioning plate on the frame along a second horizontal direction.

[0017] Optionally, the second cutting assembly includes a second drive assembly, a third cutting blade, and a fourth cutting blade, wherein:

[0018] The fixed end of the second drive assembly is mounted on the frame, and the drive end of the second drive assembly is connected to the third and / or fourth cutting blades. The third and fourth cutting blades are spaced apart and correspondingly arranged along the second horizontal direction and both extend in the vertical direction. The second drive assembly is configured to drive the third and / or fourth cutting blades to move along the second horizontal direction so that the third and fourth cutting blades move closer to or further away from each other along the second horizontal direction.

[0019] Optionally, the first cutting assembly further includes a first heating element, and the second cutting assembly further includes a second heating element. The first cutting blade, the second cutting blade, the third cutting blade, and the fourth cutting blade are all configured as heating blades, wherein:

[0020] The heating end of the first heating element is in thermal contact with the first and second cutting blades. The first heating element is configured to heat the first and second cutting blades to a preset temperature. The heating end of the second heating element is in thermal contact with the third and fourth cutting blades. The second heating element is configured to heat the third and fourth cutting blades to a preset temperature.

[0021] Optional, the high-precision cutting mechanism also includes an air blowing assembly and a take-up section, wherein:

[0022] The receiving section is located on the side of the first cutting blade near the positioning block and below the positioning block. The blowing end of the air blowing assembly faces the cutting position. The air blowing assembly is configured to blow the waste material of the heat shrink sleeve cut off by the first cutting assembly and the second cutting assembly away from the cutting position. The receiving section is configured to receive the waste material of the falling heat shrink sleeve.

[0023] Compared with existing technologies, the high-precision cutting mechanism proposed in this application has the following advantages:

[0024] 1) By setting a positioning component, a first cutting component and a second cutting component on the frame, and positioning the heat shrink sleeve at the preset cutting position during the copper busbar body feeding process, and then cutting along the vertical and second horizontal directions, the precise cutting of the preset positions on the four sides of the heat shrink sleeve end is realized, providing a cutting method with high cutting accuracy and good product consistency, thereby improving production efficiency and product quality.

[0025] 2) By setting a positioning component with a first positioning surface, a second positioning surface and a third positioning surface, the heat shrink sleeve is multi-directionally limited in the vertical direction, the first horizontal direction and the second horizontal direction to ensure that the cutting position is accurate and reliable.

[0026] 3) The first and second cutting components respectively achieve end cutting in the vertical and horizontal directions, which can complete the cutting of all four sides of the heat shrink sleeve in one go, thus improving cutting efficiency.

[0027] 4) The air blowing component blows the cutting waste away from the cutting position, and the receiving part automatically collects the waste, reducing manual cleaning and improving production continuity. At the same time, it cools the cut, promotes the rapid solidification and shaping of the cut, prevents deformation, and improves the quality of the finished product after cutting. Attached Figure Description

[0028] To more clearly illustrate and understand the technical solutions in the embodiments of this application, the accompanying drawings used in the background technology and embodiment descriptions of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0029] Figure 1 This is a front view of the high-precision cutting mechanism provided in the embodiments of this application;

[0030] Figure 2 This is a schematic diagram of the installation structure of the positioning component of the high-precision cutting mechanism provided in the embodiments of this application;

[0031] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle. Detailed Implementation

[0032] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figures 1 to 3As shown in the embodiment of this application, a high-precision cutting mechanism is provided for cutting the heat-shrinkable insulating sleeve on the copper busbar body after heat bonding. The high-precision cutting mechanism includes a frame 10, a positioning component 20, a first cutting component 30, and a second cutting component 40, wherein: the positioning component 20 is disposed on the frame 10, and the positioning component 20 is configured to cut the copper busbar body along a first horizontal direction ( Figure 2 Positioning is performed during the feed movement in the Y direction, so that the heat shrink sleeve on the copper busbar body is located at the preset cutting position; the cutting end of the first cutting component 30 is set on the frame 10, and the first cutting component 30 is configured to cut the positioned heat shrink sleeve on both sides in the vertical direction at the cutting position; the cutting end of the second cutting component 40 is set on the frame 10 and fits against the cutting end of the first cutting component 30, and the second cutting component 40 is configured to cut the positioned heat shrink sleeve in the second horizontal direction (Y direction) at the cutting position. Figure 1 Cut at both ends (in the direction of X).

[0034] Specifically, the first cutting component 30 and the second cutting component 40 move alternately. The second cutting component 40 first cuts the heat shrink sleeve to further improve the stability and safety of the cutting.

[0035] By setting a positioning component 20, a first cutting component 30, and a second cutting component 40 on the frame 10, and positioning the heat shrink sleeve at the preset cutting position during the copper busbar body feeding process, and then cutting along the vertical and second horizontal directions, the precise cutting of the preset positions on the four sides of the heat shrink sleeve end is achieved, providing a cutting method with high cutting accuracy and good product consistency, thereby improving production efficiency and product quality.

[0036] In one embodiment, the positioning component 20 includes a positioning block 21. The positioning block 21 has a first positioning surface 210 and a second positioning surface 211 at one end near the copper busbar along a first horizontal direction. The first positioning surface 210 is arranged in a horizontal direction and is configured to position the first end of the copper busbar body in a vertical direction when it is fed and moved. The second positioning surface 211 is arranged in a vertical direction and is configured to position the copper busbar body along the first horizontal direction.

[0037] By setting a positioning block 21 with a first positioning surface 210 and a second positioning surface 211 in the positioning component 20, bidirectional positioning of the copper busbar body in the vertical direction and the first horizontal direction is achieved, thereby ensuring the stability and accuracy of the copper busbar positioning and providing a reliable foundation for the precise cutting of the subsequent heat shrink sleeve.

[0038] In one embodiment, the first cutting assembly 30 includes a first driving assembly 31, a first cutting blade 32, and a second cutting blade 33, wherein: the fixed end of the first driving assembly 31 is disposed on the frame 10, the driving end of the first driving assembly 31 is connected to the first cutting blade 32 and / or the second cutting blade 33, the first cutting blade 32 and the second cutting blade 33 are disposed on the side of the positioning block 21 extending along the second horizontal direction near the heat shrink sleeve, the first cutting blade 32 and the second cutting blade 33 respectively extend along the second horizontal direction, and the first driving assembly 31 is configured to drive the first cutting blade 32 and / or the second cutting blade 33 to move up and down, so that the first cutting blade 32 and the second cutting blade 33 move closer to or further away from each other in the vertical direction.

[0039] The cooperation between the first drive assembly 31 and the first cutting blade 32 and the second cutting blade 33 extending along the second horizontal direction ensures that the cutting range covers the corresponding side of the heat shrink sleeve, thereby improving the integrity and stability of the cutting.

[0040] In one embodiment, the first cutting blade 32 is disposed directly below the second cutting blade 33 and is fixedly mounted on the frame 10. The top end of the first cutting blade 32 is located on the same plane as the first positioning surface 210. The driving end of the first driving assembly 31 is connected to the second cutting blade 33 so that when the second cutting blade 33 moves in the vertical direction close to the first cutting blade 32, it cooperates with the first cutting blade 32 to cut the heat shrink sleeve on both sides in the vertical direction.

[0041] Specifically, the first drive assembly 31 includes a drive member 310 and a connecting plate 311. The drive end of the drive member 310 is connected to the connecting plate 311. The first end of the connecting plate 311 along the first horizontal direction is fixedly connected to the second cutting blade 33. The drive member 310 is configured to drive the connecting plate 311 to move up and down.

[0042] Specifically, the connecting plate 311 has at least one first guide hole, and the frame 10 has a first guide rod 312 corresponding to the first guide hole in the vertical direction. The first guide rod passes through the corresponding first guide hole to ensure the accuracy of the connecting plate 311 moving in the vertical direction.

[0043] Specifically, a second through hole is provided on the base 10, the first end of the second guide rod is fixedly connected to the upper surface of the connecting plate 311, the second end of the second guide rod 313 passes through the second through hole and the second guide rod 313 can move vertically in the second through hole.

[0044] Specifically, the drive component 310 is configured as a cylinder, with the piston rod of the cylinder facing downwards.

[0045] By fixing the first cutting blade 32 and having its top end on the same plane as the first positioning surface 210, the second cutting blade 33 is driven to approach the first cutting blade 32 for cutting, forming a cutting fit. This provides a vertical cutting method with a flat cut and uniform cutting force. At the same time, the cooperation between the first cutting blade 32 and the first positioning surface 210 further improves the stability and positioning accuracy of the heat shrink sleeve on the copper busbar body in the vertical direction.

[0046] In one embodiment, the positioning component 20 further includes a positioning plate 22, which extends along a second horizontal direction and is vertically disposed on the frame 10 on the side of the first cutting blade 32 and the second cutting blade 33 away from the positioning block 21 along the first horizontal direction. One end of the positioning plate 22 along the second horizontal direction extends vertically and is provided with a third positioning surface 220, which is configured to limit the heat shrink sleeve along the second horizontal direction.

[0047] The heat shrink sleeve is limited along the second horizontal direction by the third positioning surface 220 of the positioning plate 22 to prevent the heat shrink sleeve from shifting along the second horizontal direction. In conjunction with the positioning block 21, it ensures that the heat shrink sleeve is in the preset cutting position from all directions, and further improves the cutting accuracy.

[0048] In one embodiment, the positioning component 20 further includes a first adjustment component 23 and a second adjustment component 24, wherein:

[0049] The first adjustment component 23 and the second adjustment component 24 are both mounted on the frame 10. The adjustment end of the first adjustment component 23 is connected to the positioning block 21. The first adjustment component 23 is configured to drive the positioning block 21 to reciprocate along the first horizontal direction. The second adjustment component 24 is configured to adjust the relative position of the positioning plate 22 on the frame 10 along the second horizontal direction.

[0050] Specifically, the first adjustment component 23 is a linear module composed of a motor and a ball screw linear transmission pair arranged along the first horizontal direction.

[0051] Specifically, the second adjustment component 24 includes a through hole, a waist-shaped hole 240, and a bolt assembly 241. The waist-shaped hole 240 is provided on the positioning plate 22 and extends along the first horizontal direction. The through hole is provided on the frame 10 and corresponds to the waist-shaped hole 240. The bolt assembly 241 connects the positioning plate 22 and the frame 10 through the waist-shaped hole 240 and the through hole.

[0052] The positioning block 21 is driven to reciprocate along the first horizontal direction by the first adjustment component 23, and the positioning plate 22 is adjusted along the second horizontal direction by the second adjustment component 24. This achieves precise adjustment of the positioning component 20 in two directions, providing a flexible adjustment method that can adapt to copper busbars and heat shrink sleeves of different sizes, thereby improving the versatility and adjustment efficiency of the equipment.

[0053] In one embodiment, the second cutting assembly 40 includes a second driving assembly, a third cutting blade (not shown) and a fourth cutting blade 42, wherein: the fixed end of the second driving assembly is disposed on the frame 10, the driving end of the second driving assembly is connected to the third cutting blade and / or the fourth cutting blade 42, the third cutting blade and the fourth cutting blade 42 are correspondingly spaced along the second horizontal direction and both extend along the vertical direction, and the second driving assembly is configured to drive the third cutting blade and / or the fourth cutting blade 42 to move along the second horizontal direction, so that the third cutting blade and the fourth cutting blade 42 move closer or further away along the second horizontal direction.

[0054] Specifically, the drive end of the second drive assembly is connected to the third and fourth cutting blades 42, and the second drive assembly is configured to drive the third and fourth cutting blades 42 to move closer to or further away from each other along a second horizontal direction.

[0055] Specifically, the second drive assembly includes two sets of drive modules 410 and two connecting rods 411. The two sets of drive modules 410 are spaced apart along the second horizontal direction. The first end of the connecting rod 411 is connected to the corresponding cutting blade along the first horizontal direction, and the second end of the connecting rod 411 is connected to the corresponding drive module 410. The drive module 410 is a linear module composed of a motor and a ball screw linear transmission pair arranged along the second horizontal direction, so as to drive the third cutting blade and the fourth cutting blade 42 to move closer to or away from each other along the second horizontal direction.

[0056] The second drive assembly drives the third and fourth cutting blades 42 to approach each other along the second horizontal direction, ensuring the accuracy of cutting the heat shrink sleeve at both ends along the second horizontal direction. At the same time, the cutting range can be flexibly adjusted according to the width of the heat shrink sleeve to meet the cutting needs of heat shrink sleeves of different specifications.

[0057] In one embodiment, the first cutting assembly 30 further includes a first heating element, the second cutting assembly 40 further includes a second heating element, and the first cutting blade 32, the second cutting blade 33, the third cutting blade, and the fourth cutting blade 42 are all configured as heating blades, wherein:

[0058] The heating end of the first heating element is in thermal contact with the first cutting blade 32 and the second cutting blade 33. The first heating element is configured to heat the first cutting blade 32 and the second cutting blade 33 to a preset temperature. The heating end of the second heating element is in thermal contact with the third cutting blade and the fourth cutting blade 42. The second heating element is configured to heat the third cutting blade and the fourth cutting blade 42 to a preset temperature.

[0059] By setting heating elements in the first cutting component 30 and the second cutting component 40 respectively, and designing all cutting blades as heating blades and connecting them to the corresponding heating elements, constant temperature heating cutting of heat shrink sleeves is realized, providing a hot cutting method with smooth cuts and less burrs, reducing cutting resistance, thereby improving cutting quality and cutting efficiency.

[0060] In one embodiment, the high-precision cutting mechanism further includes an air blowing assembly 50 and a receiving section (not shown in the figure), wherein:

[0061] The receiving section is located on the side of the first cutting blade 32 near the positioning block 21 and below the positioning block 21. The blowing end of the air blowing assembly 50 faces the cutting position. The air blowing assembly 50 is configured to blow the waste material of the heat shrink sleeve cut off by the first cutting assembly 30 and the second cutting assembly 40 away from the cutting position. The receiving section is configured to receive the waste material of the falling heat shrink sleeve.

[0062] Specifically, the receiving section is set as a receiving box with the opening facing upwards.

[0063] Specifically, the air blowing assembly 50 includes an external air source and an air blowing pipe 51. The external air source is connected to one end of the air blowing pipe 51, and the nozzle end of the air blowing pipe 51 faces the cutting position. The external air source is configured to supply air to the air blowing pipe 51 to blow the cut-off waste away from the cutting position through the gas blown out by the nozzle.

[0064] By setting up an air blowing component 50 to blow the cut waste away from the cutting position, combined with the waste receiving part, an automatic waste cleaning structure is provided, thereby keeping the cutting area clean. At the same time, when the air blowing component 50 blows towards the cutting position, it also cools the cut, promoting rapid cooling and solidification of the cut, further improving product quality and production efficiency.

[0065] The working principle of the aforementioned high-precision cutting mechanism is as follows:

[0066] S1, the first end of the copper busbar moves toward the second limiting surface of the positioning block 21 along the first horizontal direction, and at the same time, the copper busbar moves along the side of the positioning plate 22 along the second horizontal direction and abuts against the third limiting surface through the insulating sleeve and the bottom of the copper busbar abuts against the second limiting surface, until the first end of the copper busbar abuts against the second limiting surface. At this time, the heat shrink sleeve moves to the preset cutting position and the bottom of the heat shrink sleeve abuts against the first cutting blade 32.

[0067] S2, the second heating element heats the third cutting blade and the fourth cutting blade 42, and the second driving assembly drives the third cutting blade and the fourth cutting blade 42 to move closer to each other along the second horizontal direction to cut the heat shrink sleeve on both sides extending along the first horizontal direction, while limiting the copper bus body along the first horizontal direction.

[0068] S3, the first heating unit heats the first cutting blade 32 and the second cutting blade 33, and the first driving assembly 31 drives the second cutting blade 33 to descend so as to cooperate with the first cutting blade 32 to cut the heat shrink sleeve on both sides in the vertical direction.

[0069] S4, while the second drive assembly drives the third and fourth cutting blades 42 to move away from each other in the second horizontal direction, the first drive assembly 31 drives the second cutting blade 33 to rise, and the air blowing assembly 50 blows air toward the cutting position to blow the cut waste material to the receiving part while cooling the cut.

[0070] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A high-precision cutting mechanism for cutting the heat-shrinkable insulation sleeve after being heat-bonded on the copper bar body, characterized in that, The high-precision cutting mechanism includes a frame, a positioning component, a first cutting component, and a second cutting component, wherein: The positioning component is disposed on the frame and is configured to position the copper bus body as it moves along a first horizontal direction, so that the heat shrink sleeve on the copper bus body is located at a preset cutting position. The cutting end of the first cutting component is disposed on the frame. The first cutting component is configured to cut the positioned heat shrink sleeve on both sides of the cutting position along the vertical direction. The cutting end of the second cutting component is disposed on the frame and fits against the cutting end of the first cutting component. The second cutting component is configured to cut the positioned heat shrink sleeve at both ends of the cutting position along the second horizontal direction.

2. The high-precision cutting mechanism according to claim 1, characterized in that The positioning component includes a positioning block. The positioning block has a first positioning surface and a second positioning surface at one end near the copper busbar along the first horizontal direction. The first positioning surface is arranged in the horizontal direction and is configured to position the first end of the copper busbar body in the vertical direction when it is fed and moved. The second positioning surface is arranged in the vertical direction and is configured to position the copper busbar body along the first horizontal direction.

3. The high-precision cutting mechanism according to claim 2, wherein The first cutting assembly includes a first driving assembly, a first cutting blade, and a second cutting blade, wherein: The fixed end of the first drive assembly is disposed on the frame, and the drive end of the first drive assembly is connected to the first cutting blade and / or the second cutting blade. The first cutting blade and the second cutting blade are disposed on the side of the positioning block that extends along the second horizontal direction near the heat shrink sleeve. The first cutting blade and the second cutting blade extend along the second horizontal direction respectively. The first drive assembly is configured to drive the first cutting blade and / or the second cutting blade to move up and down, so that the first cutting blade and the second cutting blade move closer to or further away from each other in the vertical direction.

4. The high-precision cutting mechanism according to claim 3, characterized in that The first cutting blade is positioned directly below the second cutting blade and is fixedly mounted on the frame. The top end of the first cutting blade is on the same plane as the first positioning surface. The driving end of the first driving assembly is connected to the second cutting blade so that when the second cutting blade moves vertically closer to the first cutting blade, it cooperates with the first cutting blade to cut the heat shrink sleeve on both sides in the vertical direction.

5. The high-precision cutting mechanism according to claim 3, wherein The positioning assembly further includes a positioning plate that extends along the second horizontal direction and is vertically disposed on a frame on the side of the first cutting blade and the second cutting blade away from the positioning block along the first horizontal direction. A third positioning surface is provided on one end of the positioning plate that extends vertically along the second horizontal direction. The third positioning surface is configured to limit the heat shrink sleeve along the second horizontal direction.

6. The high-precision cutting mechanism according to claim 5, characterized in that The positioning component further includes a first adjustment component and a second adjustment component, wherein: Both the first adjustment component and the second adjustment component are mounted on the frame. The adjustment end of the first adjustment component is connected to the positioning block. The first adjustment component is configured to drive the positioning block to reciprocate along the first horizontal direction. The second adjustment component is configured to adjust the relative position of the positioning plate on the frame along the second horizontal direction.

7. The high-precision cutting mechanism according to claim 3, wherein The second cutting assembly includes a second drive assembly, a third cutting blade, and a fourth cutting blade, wherein: The fixed end of the second drive assembly is disposed on the frame, and the drive end of the second drive assembly is connected to the third cutting blade and / or the fourth cutting blade. The third cutting blade and the fourth cutting blade are disposed at intervals along the second horizontal direction and both extend in the vertical direction. The second drive assembly is configured to drive the third cutting blade and / or the fourth cutting blade to move along the second horizontal direction, so that the third cutting blade and the fourth cutting blade move closer or further away along the second horizontal direction.

8. The high-precision cutting mechanism according to claim 7, characterized in that The first cutting assembly further includes a first heating element, and the second cutting assembly further includes a second heating element. The first cutting blade, the second cutting blade, the third cutting blade, and the fourth cutting blade are all configured as heating blades, wherein: The heating end of the first heating element is in thermal contact with the first cutting blade and the second cutting blade. The first heating element is configured to heat the first cutting blade and the second cutting blade to a preset temperature. The heating end of the second heating element is in thermal contact with the third cutting blade and the fourth cutting blade. The second heating element is configured to heat the third cutting blade and the fourth cutting blade to a preset temperature.

9. The high-precision cutting mechanism according to claim 3, wherein The high-precision cutting mechanism also includes an air blowing assembly and a material receiving section, wherein: The receiving part is located on the side of the first cutting blade near the positioning block and below the positioning block. The blowing end of the air blowing assembly faces the cutting position. The air blowing assembly is configured to blow the waste material of the heat shrink sleeve cut off by the first cutting assembly and the second cutting assembly away from the cutting position. The receiving part is configured to receive the waste material of the heat shrink sleeve that falls off.

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