Silicon carbide pipe end grinding device for heat exchanger

By designing an automated silicon carbide tube end grinding device, the moving components and driving parts drive the silicon carbide tube to rotate, the problem of low grinding efficiency and accuracy in the existing technology is solved, and efficient and automated circular cross-section grinding is achieved, improving the improvement of Sealing effect.

CN222345108UActive Publication Date: 2025-01-14WUXI QIANQIAO CHEM MASCH CO LTD
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Patent Information

Application Number
CN202421199458.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-01-14
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

In the prior art, the end grinding efficiency and low accuracy of the silicon carbide tube ends are low, resulting in unsatisfactory sealing effect and it is difficult to ensure a circular cross-section through manual grinding.

Method used

An automated grinding device including a frame, feeding assembly, moving assembly, grinding assembly and processing platform is designed. The silicon carbide tube is rotated by the adjustment and driving part of the first and second moving assembly, and the sanding is carried out by sanding belt. Make sure both ends are polished into a round shape at the same time.

Benefits of technology

The production efficiency and accuracy of the end grinding of silicon carbide tubes is improved, ensuring the improvement of sealing effect, and achieving efficient and automated grinding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a silicon carbide pipe end portion polishing device for a heat exchanger, which comprises a machine frame, a feeding assembly, a first moving assembly, a second moving assembly, a first polishing assembly, a second polishing assembly and a machining platform, the first moving assembly is arranged on the table top of the machine frame, and the second moving assembly is arranged on a cross beam of the machine frame. The machining platform is installed on the first moving assembly, the first grinding assembly and the second grinding assembly are both installed on the second moving assembly, the first grinding assembly and the second grinding assembly are arranged above the machining platform, and the feeding assembly is installed on one side of the rack and connected with the machining platform. The silicon carbide pipe end grinding device for the heat exchanger is high in production efficiency, high in grinding precision and high in automation degree.
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Description

Technical Field

[0001] The utility model relates to the field of chemical machinery and equipment, and more specifically to a silicon carbide tube end grinding device for a heat exchanger. Background Art

[0002] Condenser is an energy-saving device that realizes heat transfer between two or more fluids at different temperatures. It transfers heat from a higher temperature fluid to a lower temperature fluid, so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization. The heat exchanger industry involves nearly 30 industries such as HVAC, pressure vessels, reclaimed water treatment equipment, chemicals, and petroleum.

[0003] Heat exchangers with anti-corrosion function usually use enameled tubes or silicon carbide tubes. Since there are raised particles on the outer wall of silicon carbide, in order to ensure the fit between the silicon carbide tube and the seal, the end of the silicon carbide tube is usually polished. Removing these raised particles can make the silicon carbide tube fit better with the seal and have a better sealing effect.

[0004] In the prior art, grinding equipment is usually used to manually grind the raised particles, which is inefficient and has low precision. Since the mounting holes on the tube sheet are all round and the seals are also round, the deviation caused by manual grinding will lead to unsatisfactory sealing effect. The end of the silicon carbide tube is optimally round, so the end after grinding should also be round. Manual grinding is difficult to ensure that the end has a circular cross-section. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a silicon carbide tube end grinding device for a heat exchanger with high production efficiency, high grinding accuracy and high degree of automation.

[0006] According to one aspect of the utility model, a silicon carbide tube end grinding device for a heat exchanger is provided, which includes: a frame, a feeding assembly, a first moving assembly, a second moving assembly, a first grinding assembly, a second grinding assembly and a processing platform, the first moving assembly is arranged on the table of the frame, the second moving assembly is arranged on the crossbeam of the frame, the processing platform is mounted on the first moving assembly, the first grinding assembly and the second grinding assembly are both mounted on the second moving assembly, the first grinding assembly and the second grinding assembly are arranged above the processing platform, the feeding assembly is installed on one side of the frame, and the feeding assembly is connected to the processing platform. The silicon carbide tube is transported to the processing platform by the feeding assembly, the first grinding assembly and the second grinding assembly facilitate the simultaneous grinding of the two ends of the silicon carbide tube, and the adjustment of the first moving assembly and the second moving assembly facilitates the grinding of the ends of the tube body of different lengths.

[0007] In some embodiments, the processing platform includes: a first driving part and a second driving part, the first driving part and the second driving part are symmetrically mounted on the first moving assembly and can be close to or away from each other on the first moving assembly. The first driving part and the second driving part mounted on the first moving assembly facilitate grinding of silicon carbide tubes of different lengths.

[0008] In some embodiments, the first driving part includes: a first mounting plate, a first bracket, a first motor, a driving wheel and a driven wheel, the bottom of the first mounting plate is connected to the first moving assembly, the first bracket is arranged on the first mounting plate, the driving wheel and the driven wheel are parallelly mounted on the first bracket, and the first motor is connected to and drives the driving wheel to rotate;

[0009] The structure of the first driving part is the same as that of the second driving part. The first driving part and the second driving part with the same structure drive the silicon carbide tube to rotate, ensuring that the silicon carbide tube rotates during grinding, so that both ends of the tube are ground into a circle with higher precision.

[0010] In some embodiments, the first moving assembly includes: a first linear rail, a first slider and a second slider, the first slider and the second slider are sleeved on the first linear rail, the first driving unit is mounted on the first slider, and the second driving unit is mounted on the second slider. The first slider and the second slider are used to drive the first driving unit and the second driving unit to move and fix, which can be used to adapt to the use of silicon carbide tubes of different lengths.

[0011] In some embodiments, the second moving assembly includes: a second linear rail, a third slider, a fourth slider, a first slider, a second slider, a second motor, a first synchronous belt and a second synchronous belt, the second linear rail is mounted on a crossbeam, the third slider and the fourth slider are both sleeved on the second linear rail, the first slider is fixedly connected to the third slider, the second slider is fixedly connected to the fourth slider, the second bracket is fixed to the outside of the second motor, a driving gear is arranged at the output end of the second motor, the driving gear is meshed with the driven gear, the driving gear and the driven gear are arranged on the second bracket, a first transition wheel is arranged at one end of the second linear rail, a second transition wheel is arranged at the other end of the second linear rail, a first synchronous belt connects the driving gear and the first transition wheel, the first slider is fixedly connected to the first synchronous belt, the second synchronous belt connects the driven gear and the second transition wheel, and the second slider is fixedly connected to the second synchronous belt. The first synchronous belt and the second synchronous belt are driven by the second motor to rotate, thereby realizing the first slider and the second slider moving toward or away from each other.

[0012] In some embodiments, a first grinding assembly is installed at the bottom of the first slide plate, and a second grinding assembly is installed at the bottom of the second slide plate, and the structure of the first grinding assembly is the same as the structure of the second grinding assembly. The first slider and the second slider drive the first driving part and the second driving part to move and fix to adapt to the use of silicon carbide tubes of different lengths.

[0013] In some embodiments, the first grinding assembly includes: a first driving member, a second mounting plate and a grinding unit, the first driving member is mounted on the first slide, the output end of the first driving member is connected to the second mounting plate, a plurality of linear bearings are arranged between the second mounting plate and the first slide, and the grinding unit is mounted on the bottom of the second mounting plate. The first driving member drives the grinding unit to move up and down, so that the grinding unit can approach or move away from the silicon carbide tube placed on the processing platform and grind the silicon carbide tube.

[0014] In some embodiments, the grinding part includes: a third motor, a first grinding belt wheel, a second grinding belt wheel, a third grinding belt wheel and a grinding belt, the output end of the third motor is connected to the first grinding belt wheel, the second grinding belt wheel and the third grinding belt wheel are mounted on the second mounting plate, and the grinding belt passes through the first grinding belt wheel, the second grinding belt wheel and the third grinding belt wheel. The grinding belt is driven to rotate by the third motor to grind the end of the silicon carbide tube.

[0015] In some embodiments, the feeding assembly includes: a base, a support rod, a moving rod and a third driving unit, two support rods are installed on the base, the support rods are vertically arranged with the frame, the third driving unit is provided with a moving rod, the moving rod is provided with at least two, the third driving unit drives the moving rod to rise and fall and move forward and backward, and the moving rod is arranged on the inner side of the support rod;

[0016] A shift rod is arranged at the front end of the support rod, and a plurality of first placement grooves are arranged at the rear end of the support rod, wherein the plurality of first placement grooves extend to the middle of the support rod, and a bevel is provided between the first placement grooves and the shift rod;

[0017] The moving rod is provided with a plurality of second placement grooves, which are arranged corresponding to the first placement grooves. The silicon carbide tubes to be processed are prevented from being moved by the support rods, and the third driving part and the moving rods are used to realize the moving feeding of the silicon carbide tubes.

[0018] In some embodiments, the third driving part includes: a third mounting plate, a third linear rail, a fifth slider, a second driving member, a fourth mounting plate and a third driving member, the third linear rail is mounted on the base, the fifth slider is sleeved on the third linear rail, the third linear rail and the fifth slider are each provided with two groups, the third mounting plate is fixedly connected to the fifth slider, the second driving member is connected to the base and the third mounting plate, a plurality of third driving members are vertically arranged on the third mounting plate, the output end of the third driving assembly is connected to the fourth mounting plate, and the bottom of the moving rod is fixedly mounted on the fourth mounting plate;

[0019] The first driving member, the second driving member and the third driving member are cylinders. The second driving member drives the moving rod to move horizontally forward and backward, and the third driving member drives the moving rod to move up and down, thereby realizing the separate feeding of the silicon carbide tube.

[0020] The utility model discloses a silicon carbide tube end grinding device for a heat exchanger. The silicon carbide tube is conveyed to a processing platform through a feeding assembly. The two ends of the silicon carbide tube are simultaneously ground through a first grinding assembly and a second grinding assembly. The ends of the tube body with different lengths can be ground through adjustment of a first moving assembly and a second moving assembly. The silicon carbide tubes with different lengths can be ground through a first driving part and a second driving part installed on the first moving assembly. The silicon carbide tubes with different lengths can be ground through the first driving part and the second driving part with the same structure. The silicon carbide tube is driven to rotate through the first driving part and the second driving part with the same structure, so that the silicon carbide tube rotates during grinding, so that the two ends of the tube are ground into a circle with higher precision. The first slider and the second slider are used to drive the first driving part and The movement and fixation of the second driving part should be adapted to the use of silicon carbide tubes of different lengths; the first synchronous belt and the second synchronous belt are driven to rotate by the second motor to realize the movement of the first slide plate and the second slide plate toward or away from each other; the grinding part is driven to move up and down by the first driving member to realize the grinding part approaching or moving away from the silicon carbide tube placed on the processing platform and grinding the silicon carbide tube; the sanding belt is driven to rotate by the third motor to realize the grinding of the end of the silicon carbide tube; the support rod is used to prevent the silicon carbide tube that needs to be processed, and the third driving part and the moving rod are used to realize the moving feeding of the silicon carbide tube; the second driving member is used to drive the moving rod to move horizontally back and forth, and the third driving member is used to drive the moving rod to move up and down, thereby realizing the separate feeding of the silicon carbide tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a silicon carbide tube end grinding device for a heat exchanger of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a processing platform of a silicon carbide tube end grinding device for a heat exchanger of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the second moving component of the silicon carbide tube end grinding device for the heat exchanger of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first grinding component of the silicon carbide tube end grinding device for the heat exchanger of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the grinding part of the silicon carbide tube end grinding device for heat exchanger of the utility model;

[0026] Figure 6 It is a structural schematic diagram of a feeding assembly of a silicon carbide tube end grinding device for a heat exchanger of the utility model;

[0027] Figure 7 This is a schematic diagram of the initial position of the feeding assembly of the silicon carbide tube end grinding device for the heat exchanger of the utility model;

[0028] Figure 8 This is a schematic diagram of the lifting state of the feeding assembly of the silicon carbide tube end grinding device for the heat exchanger of the utility model;

[0029] Fig. 9 It is a schematic diagram of the forward movement state of the feeding assembly of the silicon carbide tube end grinding device for the heat exchanger of the utility model;

[0030] Fig.10 The utility model is a schematic diagram of the falling state of the feeding component of the silicon carbide tube end grinding device for the heat exchanger. DETAILED DESCRIPTION

[0031] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0032] In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meaning of the terms can be understood according to the specific circumstances.

[0033] like Figure 1 As shown, the silicon carbide tube end grinding device for heat exchanger described in the utility model comprises: a frame 1, a feeding assembly 2, a first moving assembly 3, a second moving assembly 4, a first grinding assembly 5, a second grinding assembly 6 and a processing platform 7. The first moving assembly 3 is arranged on the table 11 of the frame 1, the second moving assembly 4 is arranged on the crossbeam 12 of the frame 1, the processing platform 7 is mounted on the first moving assembly 3, the first grinding assembly 5 and the second grinding assembly 6 are both mounted on the second moving assembly 4, the first grinding assembly 5 and the second grinding assembly 6 are arranged above the processing platform 7, the feeding assembly 2 is installed on one side of the frame 1, and the feeding assembly 2 is connected to the processing platform 7. The silicon carbide tube is transported to the processing platform 7 by the feeding assembly 2, and the first grinding assembly 5 and the second grinding assembly 6 facilitate the simultaneous grinding of the two ends of the silicon carbide tube, and the adjustment of the first moving assembly 3 and the second moving assembly 4 facilitates the grinding of the ends of the tube body of different lengths.

[0034] like Figure 2As shown, the processing platform 7 includes: a first driving part 71 and a second driving part 72, which are symmetrically mounted on the first moving assembly 3 and can be close to or away from each other on the first moving assembly 3. The first driving part 71 and the second driving part 72 mounted on the first moving assembly 3 facilitate grinding of silicon carbide tubes of different lengths.

[0035] The first driving part 71 includes: a first mounting plate 711, a first bracket 712, a first motor 713, a driving wheel 714 and a driven wheel 715. The bottom of the first mounting plate 711 is connected to the first moving assembly 3. The first bracket 712 is arranged on the first mounting plate 711. The driving wheel 714 and the driven wheel 715 are parallelly mounted on the first bracket 712. The first motor 713 is connected to and drives the driving wheel 714 to rotate.

[0036] The structure of the first driving part 71 is the same as that of the second driving part 72. The first driving part 71 and the second driving part 72 with the same structure drive the silicon carbide tube to rotate, ensuring that the silicon carbide tube rotates during grinding, so that both ends of the tube are ground into a circle with higher precision.

[0037] The first moving assembly 3 includes: a first linear rail 31, a first slider 32 and a second slider 33. The first slider 32 and the second slider 33 are sleeved on the first linear rail 31, the first driving part 71 is mounted on the first slider 32, and the second driving part 72 is mounted on the second slider 33. The first slider 32 and the second slider 33 are used to drive the first driving part 71 and the second driving part 72 to move and fix, so as to adapt to the use of silicon carbide tubes of different lengths.

[0038] like Figure 3As shown, the second moving assembly 4 includes: a second linear rail 41, a third slider 42, a fourth slider 43, a first slider 44, a second slider 45, a second motor 46, a first synchronous belt 47 and a second synchronous belt 48. The second linear rail 41 is installed on the crossbeam 12, the third slider 42 and the fourth slider 43 are both sleeved on the second linear rail 41, the first slider 44 is fixedly connected to the third slider 42, the second slider 45 is fixedly connected to the fourth slider 43, the second bracket 49 is fixed on the outer side of the second motor 46, and the output end of the second motor 46 is provided with an active gear The driving gear 410 is meshed with the driven gear 411, and the driving gear 410 and the driven gear 411 are installed on the second bracket 49. A first transition wheel 412 is set at one end of the second linear rail 41, and a second transition wheel 413 is set at the other end of the second linear rail 41. The first synchronous belt 47 connects the driving gear 410 and the first transition wheel 412. The first slide 44 is fixedly connected to the first synchronous belt 47, the second synchronous belt 48 connects the driven gear 411 and the second transition wheel 413, and the second slide 45 is fixedly connected to the second synchronous belt 48. The first synchronous belt 47 and the second synchronous belt 48 are driven to rotate by the second motor 46 to realize the first slide 44 and the second slide 45 to move toward or away from each other. Of course, the driving gear 410 and the driven gear 411 are provided with synchronous pulleys for connecting the first synchronous belt 47 and the second synchronous belt 48.

[0039] The first grinding assembly 5 is installed at the bottom of the first slide plate 44, and the second grinding assembly 6 is installed at the bottom of the second slide plate 45. The structure of the first grinding assembly 5 is the same as that of the second grinding assembly 6. The first slider 32 and the second slider 33 drive the first driving part 71 and the second driving part 72 to move and fix to adapt to the use of silicon carbide tubes of different lengths.

[0040] like Figure 4 As shown, the first grinding assembly 5 includes: a first driving member 51, a second mounting plate 52 and a grinding part 53. The first driving member 51 is mounted on the first slide 44. The output end of the first driving member 51 is connected to the second mounting plate 52. A plurality of linear bearings 54 are arranged between the second mounting plate 52 and the first slide 44. The grinding part 53 is arranged at the bottom of the second mounting plate 52. The first driving member 51 drives the grinding part 53 to move up and down, so that the grinding part 53 can approach or move away from the silicon carbide tube placed on the processing platform 7 and grind the silicon carbide tube. In order to reduce dust, adsorption holes can be arranged in parallel on the side of the grinding part 53 to connect the suction device of the workshop to reduce silicon carbide dust.

[0041] like Figure 5As shown, the grinding part 53 includes: a third motor 531, a first grinding belt wheel 532, a second grinding belt wheel 533, a third grinding belt wheel 534 and a grinding belt 535. The output end of the third motor 531 is connected to the first grinding belt wheel 532. The second grinding belt wheel 533 and the third grinding belt wheel 534 are installed on the second mounting plate 52. The grinding belt 535 passes through the first grinding belt wheel 532, the second grinding belt wheel 533 and the third grinding belt wheel 534. The grinding belt 535 is driven to rotate by the third motor 531 to grind the end of the silicon carbide tube.

[0042] like Figure 6 As shown, the feeding assembly 2 includes: a base 21, a support rod 22, a moving rod 23 and a third driving part 24. Two support rods 22 are installed on the base 21. The support rods 22 are vertically arranged with the frame 1. The moving rods 23 are arranged on the third driving part 24. The moving rods 23 are provided with at least two. The third driving part 24 drives the moving rods 23 to rise and fall and move forward and backward. The moving rods 23 are arranged on the inner side of the support rods 22.

[0043] A shift rod 221 is disposed at the front end of the support rod 22, and a plurality of first placement grooves 222 are disposed at the rear end of the support rod 22. The plurality of first placement grooves 222 extend to the middle of the support rod 22, and a bevel is provided between the first placement groove 222 and the shift rod 221;

[0044] The moving rod 23 is provided with a plurality of second placement grooves 231, which are arranged corresponding to the first placement grooves 222. The support rod 22 is used to prevent the silicon carbide tube to be processed, and the third driving part 24 and the moving rod 23 are used to realize the moving feeding of the silicon carbide tube.

[0045] The third driving part 24 includes: a third mounting plate 241, a third linear rail 242, a fifth slider 243, a second driving member 244, a fourth mounting plate 245 and a third driving member 246. The third linear rail 242 is mounted on the base 21. The fifth slider 243 is sleeved on the third linear rail 242. The third linear rail 242 and the fifth slider 243 are each provided with two groups. The third mounting plate 241 is fixedly connected to the fifth slider 243. The second driving member 244 is connected to the base 21 and the third mounting plate 241. A plurality of third driving members 246 are vertically arranged on the third mounting plate 241. The output end of the third driving assembly is connected to the fourth mounting plate 245. The bottom of the moving rod 23 is fixedly mounted on the fourth mounting plate 245.

[0046] The first driving member 51, the second driving member 244 and the third driving member 246 are cylinders. The second driving member 244 drives the moving rod 23 to move horizontally forward and backward, and the third driving member 246 drives the moving rod 23 to move up and down, thereby realizing the separate feeding of the silicon carbide tube.

[0047] When grinding the end of the silicon carbide tube, follow the steps below:

[0048] S1: Confirm the length of the processed silicon carbide tube;

[0049] S2: Adjust the first moving assembly 3 and the second moving assembly 4 to ensure that the distance between the first grinding assembly 5 and the second grinding assembly 6 and the first driving part 71 and the second driving part 72 is equivalent to the length of the silicon carbide tube to be processed;

[0050] S3: The feeding assembly 2 feeds the silicon carbide tube to the first driving part 71 and the second driving part 72 and is located on the driving wheel 714 and the driven wheel 715;

[0051] S4: The first driving part 71 and the second driving part 72 are running, the first motor 713 is connected and drives the driving wheel 714 to rotate, thereby driving the silicon carbide tube to rotate;

[0052] S5: the first grinding assembly 5 and the second grinding assembly 6 operate to grind the end of the silicon carbide tube at the same time;

[0053] S6: The first grinding assembly 5 and the second grinding assembly 6 stop and move upward;

[0054] S7: The feeding assembly 2 feeds the polished silicon carbide tube to the front end of the support rod 22, and at the same time, the silicon carbide tube is transported to the first driving part 71 and the second driving part 72;

[0055] S8: Repeat the above steps 3-7.

[0056] In the specific implementation process, the steps of feeding the material by the feeding component 2 are as follows:

[0057] S1: Figure 7 As shown, in the initial position, the first placement groove 222 is located vertically above the second placement groove 231, and the silicon carbide tube falls into the first placement groove 222;

[0058] S2: Figure 8 As shown, the third driving member 246 drives the moving rod 23 to lift up, lifts up the silicon carbide tube, and the silicon carbide tube falls into the second placement groove 231;

[0059] S3: Fig. 9 As shown, the second driving member 244 drives the moving rod 23 to move forward, driving the silicon carbide tube to move forward. It should be noted that the forward movement distance needs to be controlled to be consistent with the position of the next first placement groove 222;

[0060] S4: Fig.10 As shown, the third driving member 246 drives the moving rod 23 to move downward, and the silicon carbide tube falls into the first placement groove 222;

[0061] S5: Pull back, the second driving member 244 drives the moving rod 23 to move backward to the initial position.

[0062] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A silicon carbide tube end grinding device for a heat exchanger, characterized in that: include: A frame, a feeding assembly, a first moving assembly, a second moving assembly, a first grinding assembly, a second grinding assembly and a processing platform, wherein the first moving assembly is arranged on the table top of the frame, the second moving assembly is arranged on the crossbeam of the frame, the processing platform is installed on the first moving assembly, the first grinding assembly and the second grinding assembly are both installed on the second moving assembly, the first grinding assembly and the second grinding assembly are arranged above the processing platform, the feeding assembly is installed on one side of the frame, and the feeding assembly is connected to the processing platform.

2. The silicon carbide tube end grinding device for heat exchanger according to claim 1, characterized in that: The processing platform comprises: a first driving part and a second driving part, wherein the first driving part and the second driving part are symmetrically mounted on the first moving assembly and can approach or move away from each other on the first moving assembly.

3. The silicon carbide tube end grinding device for heat exchanger according to claim 2, characterized in that: The first driving part comprises: a first mounting plate, a first bracket, a first motor, a driving wheel and a driven wheel, the bottom of the first mounting plate is connected to a first moving assembly, the first bracket is arranged on the first mounting plate, the driving wheel and the driven wheel are parallelly mounted on the first bracket, and the first motor is connected to and drives the driving wheel to rotate; The structure of the first driving part is the same as that of the second driving part.

4. The silicon carbide tube end grinding device for heat exchanger according to claim 3, characterized in that: The first moving assembly includes: a first linear rail, a first slider and a second slider, the first slider and the second slider are sleeved on the first linear rail, the first driving part is installed on the first slider, and the second driving part is installed on the second slider.

5. The silicon carbide tube end grinding device for heat exchanger according to claim 4, characterized in that: The second moving assembly includes: a second linear rail, a third slider, a fourth slider, a first slider, a second slider, a second motor, a first synchronous belt and a second synchronous belt. The second linear rail is installed on the crossbeam. The third slider and the fourth slider are both sleeved on the second linear rail. The first slider is fixedly connected to the third slider, and the second slider is fixedly connected to the fourth slider. A second bracket is fixed to the outer side of the second motor. A driving gear is arranged at the output end of the second motor, and the driving gear is meshed with a driven gear. The driving gear and the driven gear are arranged on the second bracket. A first transition wheel is arranged at one end of the second linear rail, and a second transition wheel is arranged at the other end of the second linear rail. The first synchronous belt connects the driving gear and the first transition wheel. The first slider is fixedly connected to the first synchronous belt, and the second synchronous belt connects the driven gear and the second transition wheel. The second slider is fixedly connected to the second synchronous belt.

6. The silicon carbide tube end grinding device for heat exchanger according to claim 5, characterized in that: A first grinding assembly is installed at the bottom of the first slide plate, and a second grinding assembly is installed at the bottom of the second slide plate. The structure of the first grinding assembly is the same as that of the second grinding assembly.

7. The silicon carbide tube end grinding device for heat exchanger according to claim 6, characterized in that: The first grinding assembly includes: a first driving member, a second mounting plate and a grinding part, the first driving member is installed on the first slide, the output end of the first driving member is connected to the second mounting plate, a plurality of linear bearings are arranged between the second mounting plate and the first slide, and the grinding part is installed at the bottom of the second mounting plate.

8. The silicon carbide tube end grinding device for heat exchanger according to claim 7, characterized in that: The grinding part includes: a third motor, a first grinding belt wheel, a second grinding belt wheel, a third grinding belt wheel and a grinding belt, the output end of the third motor is connected to the first grinding belt wheel, the second grinding belt wheel and the third grinding belt wheel are mounted on the second mounting plate, and the grinding belt passes through the first grinding belt wheel, the second grinding belt wheel and the third grinding belt wheel.

9. The silicon carbide tube end grinding device for heat exchanger according to claim 8, characterized in that: The feeding assembly comprises: a base, a support rod, a moving rod and a third driving part, two support rods are installed on the base, the support rods are arranged vertically with the frame, the moving rods are arranged on the third driving part, the moving rods are provided with at least two, the third driving part drives the moving rods to rise and fall and move forward and backward, and the moving rods are arranged on the inner side of the support rods; A shift rod is arranged at the front end of the support rod, and a plurality of first placement grooves are arranged at the rear end of the support rod, wherein the plurality of first placement grooves extend to the middle of the support rod, and a bevel is provided between the first placement groove and the shift rod; The moving rod is provided with a plurality of second placement grooves, and the second placement grooves are arranged corresponding to the first placement grooves.

10. The silicon carbide tube end grinding device for heat exchanger according to claim 9, characterized in that: The third driving part comprises: a third mounting plate, a third linear rail, a fifth slider, a second driving member, a fourth mounting plate and a third driving member, the third linear rail is mounted on the base, the fifth slider is sleeved on the third linear rail, the third linear rail and the fifth slider are each provided with two groups, the third mounting plate is fixedly connected to the fifth slider, the second driving member is connected to the base and the third mounting plate, a plurality of third driving members are vertically arranged on the third mounting plate, the output end of the third driving member is connected to the fourth mounting plate, and the bottom of the moving rod is fixedly mounted on the fourth mounting plate; The first driving member, the second driving member and the third driving member are cylinders.