An intercooler radiator pipe polishing device

Abstract

The utility model discloses a kind of intercooler radiating pipe polishing equipment, solve the technical problems of low artificial polishing efficiency, high damage rate and the positioning accuracy deficiency of existing equipment. Including: rotating positioning unit is realized thin-walled tube nondestructive clamping by inner diameter clamping block and double support pipe, radial runout≤0.05mm;Feeding unit uses jacking mechanism and temporary storage unit with buffer rubber guide groove, realizes 28 seconds / tube high-speed transmission and zero jamming;Polishing unit is configured X / Z linear motor module, cooperate rotating pipe and form spiral polishing track, automatically compensate ±2mm pipe diameter deviation. Its remarkable effect is: pipe mark rate≤3%, surface roughness reaches Ra1.6 μm, maintenance cycle is extended to 2000 hours.

Description

Technical Field

[0001] This utility model relates to the field of intercooler manufacturing technology, and in particular to an intercooler heat dissipation tube grinding equipment. Background Technology

[0002] The intercooler is a product designed to compensate for the shortcomings of turbocharged engines. It is located between the turbocharger and the engine air inlet. Its function is to reduce the intake temperature of the boosted air and increase the intake air density, thereby increasing the engine's power per unit volume and reducing fuel consumption and harmful substances.

[0003] Existing intercoolers use brazing to weld the heat sink, main plate, and heat pipe together after the core assembly is completed. This brazing process requires flux, a necessary welding agent. During brazing, the flux melts to clean and wet the weld surface. During the cooling phase, a large amount of residual flux flows into the gap between the core brazing restraints and the heat pipes. After complete cooling, the restraints are removed. Often, a large amount of flux remains at the first heat pipe of the intercooler, affecting the product's appearance. Existing grinding processes mostly involve manual handling of the pipes against the grinding wheel, which has three major technical drawbacks: poor positioning accuracy (manual clamping easily leads to radial runout of the pipes exceeding tolerance (generally >0.5mm), making it difficult to guarantee grinding uniformity); high surface damage rate (rigid clamping causes indentation rates of 12%-15% on thin-walled pipes (wall thickness ≤0.8mm); and low automation (manual loading and unloading of a single pipe takes ≥40 seconds, and the dusty environment harms the operator's health). Although some automated equipment has emerged, key bottlenecks still exist: traditional outer diameter clamping mechanisms cause elliptical deformation of pipe fittings (roundness error ≥0.3mm); pipe fittings are prone to jamming in the transmission track during continuous feeding; and the fixed grinding trajectory cannot adapt to the curved surface contours of different pipe diameters. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a grinding device for intercooler heat pipes.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a grinding device for intercooler heat dissipation tubes, comprising: a rotary positioning unit, including: two sets of inner diameter clamping assemblies arranged opposite each other, each set including an inner diameter clamping block rigidly driven by a clamping cylinder piston rod; a pair of guide rods fixedly arranged parallel to the clamping direction, symmetrically arranged on both sides of the clamping cylinder; guide rod fixing seats connected to both ends of the guide rods; two support tubes rotatably connected between the guide rod fixing seats by bearings; a synchronous belt drive mechanism and a first drive motor, the synchronous belt drive mechanism connecting the first drive motor to the end of the support tubes; and a feeding unit, located on the rotary positioning unit. One side of the positioning unit includes: a placement base with an arc-shaped notch at the top; a lifting mechanism fixed below the placement base, which includes a lifting plate driven by a lifting cylinder; a horizontal slide table fixing the lifting mechanism, the horizontal slide table being driven by a feeding cylinder; an inclined guide plate located at the discharge end of the placement base; a temporary placement unit located below the guide plate; and a grinding unit located on the other side of the rotary positioning unit, including: a grinding wheel; a second drive motor mounted on a grinding bracket and driving the grinding wheel; an X-axis drive device for driving the grinding bracket to move horizontally; and a Z-axis drive device for driving the grinding bracket to move vertically.

[0007] As a preferred embodiment of this utility model, the inner diameter clamping block includes a cylindrical base with an anodized surface and a tapered inlet with a cone angle of 25°–35°, the surface of which is plated with a hard chrome layer.

[0008] As a preferred embodiment of the present invention, the synchronous belt transmission mechanism includes a driving pulley keyed to the output shaft of the first drive motor; two driven pulleys interference-fitted to the ends of two support tubes; and a synchronous belt meshing with the driving pulley and the driven pulleys.

[0009] As a preferred technical solution of this utility model, the temporary placement unit includes two pairs of inner diameter abutment blocks with arc-shaped grooves on the contact surfaces, the curvature of the grooves matching the inner diameter of the heat dissipation pipe; a clamping cylinder that drives the inner diameter abutment blocks to close via a floating joint; a fixing column with a buffer rubber guide groove on the top; and infrared beam sensors with the transmitting end and receiving end respectively located on both sides of the temporary placement unit, the beam of which is parallel to the axis of the fixing column.

[0010] As a preferred technical solution of this utility model, the inner diameter abutment block includes a positioning tube with an anodized surface and a tapered guide tube with a cone angle of 25°–35° and a hard chrome plated surface.

[0011] As a preferred embodiment of this utility model, the X-axis driving device includes an X-axis linear motor module, an X-axis drive motor, and an X-axis drive guide rail, all of which are bolted to the mover and the grinding bracket; the Z-axis driving device includes a Z-axis linear motor module, a Z-axis drive motor, and a Z-axis drive guide rail.

[0012] As a preferred embodiment of this utility model, the guide groove depth of the fixing column is greater than half the diameter of the heat dissipation pipe, and the Shore hardness of the buffer rubber pad is 50±5HA.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The inner diameter clamping block of the rotary positioning unit adopts an anodized substrate + a cone-shaped hard chrome plating inlet, which ensures uniform clamping force distribution and reduces the indentation rate of thin-walled tubes to <2%; the dual-support tube synchronous belt drive mechanism controls radial runout ≤0.05mm, ensuring circumferential grinding consistency.

[0015] 2. The lifting mechanism and horizontal slide are linked to achieve high-speed feeding of 13 seconds per pipe; the arc-shaped groove inner diameter abutment block + buffer rubber guide groove design of the temporary placement unit ensures zero jamming rate in pipe transmission; the infrared beam sensor provides real-time positioning and detection, achieving 100% accuracy in picking up good products.

[0016] 3. The X-axis drive device achieves axial feed accuracy of 0.01 mm; the Z-axis drive device dynamically adjusts the grinding depth; the rotating pipe and the axial feed form a spiral full-coverage grinding trajectory; it automatically compensates for ±2 mm pipe diameter deviation to adapt to different pipe specifications. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is the front view of this utility model;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 This is a side view of the present invention;

[0022] Figure 5 This is a schematic diagram of the feeding unit in this utility model;

[0023] Figure 6 This is a schematic diagram of the grinding unit in this utility model;

[0024] In the diagram: 1. Rotary positioning unit; 2. Feeding unit; 3. Grinding unit; 11. Inner diameter clamping block; 12. Clamping cylinder; 13. Guide rod; 14. Guide rod fixing seat; 15. Synchronous belt transmission mechanism; 16. First drive motor; 17. Support tube; 21. Placement base; 22. Lifting plate; 23. Lifting cylinder; 24. Horizontal slide table; 25. Feeding cylinder; 26. Guide plate; 27. Temporary placement unit; 31. Grinding wheel; 32. Grinding bracket; 33. X-axis drive device; 34. Second drive motor; 35. Z-axis drive device Components: 111. Cylindrical base; 112. Conical guide section; 151. Driving pulley; 152. Driven pulley; 153. Synchronous belt; 271. Inner diameter abutment block; 272. Pressing cylinder; 273. Guide groove; 274. Fixed column; 275. Infrared beam sensor; 331. X-axis linear motor module; 332. X-axis drive motor; 333. X-axis drive guide rail; 351. Z-axis linear motor module; 352. Z-axis drive motor; 353. Z-axis drive guide rail; 2711. Positioning tube; 2712. Conical guide tube. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] In the attached diagram, all identical reference numerals refer to the same components.

[0027] Example 1, such as Figure 1-6 As shown, this utility model provides a grinding device for intercooler heat dissipation pipes, the core structure of which includes a rotary positioning unit:

[0028] Inner diameter clamping block 11: includes a cylindrical base 111 with a diameter of 45mm and a 35° conical inlet 112, which is rigidly connected to the piston rod of the clamping cylinder 12 by M12 bolts;

[0029] Guiding system: Two φ20mm guide rods 13 are parallel to the clamping direction and symmetrically arranged on both sides of the clamping cylinder 12, with both ends interference-fitted to the guide rod fixing seat 14;

[0030] Rotating mechanism: Two φ60mm support tubes 17 are connected to the guide rod fixing seat 14 through 6206 bearings, and the driven pulley 152 is interference-fitted at the single-sided protruding end;

[0031] Transmission mechanism: The output shaft of the first drive motor 16 (power 0.75kW) is keyed to the drive pulley 151, which drives the two support tubes 17 to rotate synchronously through the synchronous belt 153 at a speed of 30rpm.

[0032] X-axis drive device 33: X-axis linear motor module 331 (repeat positioning accuracy ±0.01mm) drives the grinding bracket 32 ​​to move horizontally via bolts, with a stroke range of 300mm;

[0033] Z-axis drive device 35: Z-axis linear motor module 351 drives grinding wheel 31 to feed vertically, with a feed depth adjustable from 0.5 to 1.0 mm;

[0034] The second drive motor 34, with a power of 2.2kW, drives the grinding wheel 31 to rotate at 1500rpm, forming a spiral grinding trajectory with the speed difference between the motor and the support tube 17.

[0035] The feeding unit's workflow is as follows:

[0036] 1. The heat pipe is placed in the arc-shaped notch of the base 21;

[0037] 2. The lifting cylinder 23 drives the lifting plate 22 to lift the pipe fitting to the processing position;

[0038] 3. The feeding cylinder 25 pushes the horizontal slide table 24 to move 200mm, sending the pipe fitting to the center of the inner diameter clamping block 11;

[0039] 4. Clamping cylinder 12 outputs a clamping force of 150N to fix the pipe end.

[0040] Example 2, special treatment for thin-walled tubes: the cone angle of the tapered inlet 112 of the inner diameter clamping block 11 is adjusted to 25°, the surface hard chrome plating is thickened to 20μm, the guide rod 13 is equipped with a linear bearing to reduce clamping friction resistance; the pressure of the clamping cylinder 12 is reduced to 80N to avoid indentation of the tube.

[0041] Inner diameter abutment block 271: positioning tube 2711 diameter 40mm, tapered guide tube 2712 inlet angle 28°; guide groove 273: depth 30mm, buffer rubber pad Shore hardness 48HA; clamping cylinder 272: outputs 25N flexible clamping force through floating joint; infrared beam sensor 275: detection accuracy ±0.2mm, ensuring pipe fitting axis offset <1°.

[0042] Grinding parameters adjustment: the rotation speed of support tube 17 is reduced to 15 rpm; the X-axis feed speed is adjusted to 20 mm / s; the radial infeed of grinding wheel 31 is reduced to 0.3 mm.

[0043] Example 3: Compatibility Implementation of Irregularly Shaped Tubes

[0044] Clamping adaptive structure: The inner diameter clamping block 11 has a polyurethane buffer layer (2mm thick) added to the cylindrical base to compensate for ±2mm pipe diameter deviation; the guide rod fixing seat 14 is equipped with a disc spring (stiffness coefficient 50N / mm) to absorb clamping impact; feeding and transmission optimization: the arc notch width of the placement base 21 is increased to 50mm; the tilt angle of the inclined guide plate 26 is increased to 25° to accelerate the downward movement of the pipe fitting; the height of the fixing column 274 of the temporary placement unit 27 is adjusted to 150mm.

[0045] Performance verification: Clamping roundness error ≤ 0.1mm; Transmission efficiency: 28 seconds / tube (standard tube) → 32 seconds / tube (irregular tube); Surface roughness stabilized at Ra1.6μm.

[0046] This utility model is a grinding equipment for intercooler heat pipes. Through the collaborative innovation design of three units, it significantly improves the grinding quality and efficiency of heat pipes.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A grinding device for intercooler heat dissipation tubes, characterized in that, include: The rotary positioning unit (1) includes: two sets of inner diameter clamping assemblies arranged opposite to each other, each set including an inner diameter clamping block (11) rigidly driven by the piston rod of the clamping cylinder (12); a pair of guide rods (13) fixedly arranged and parallel to the clamping direction, symmetrically arranged on both sides of the clamping cylinder (12); guide rod fixing seats (14) connected to both ends of the guide rods (13); two support tubes (17) rotatably connected between the guide rod fixing seats (14) by bearings; and a synchronous belt drive mechanism (15) and a first drive motor (16), wherein the synchronous belt drive mechanism (15) connects the first drive motor (16) and the end of the support tube (17); and a feeding unit (2) located on one side of the rotary positioning unit (1), including: a feeding unit with an arc-shaped notch at the top. The base (21); a lifting mechanism fixed below the base (21), which includes a lifting plate (22) driven by a lifting cylinder (23); a horizontal slide (24) fixing the lifting mechanism, which is driven by a feeding cylinder (25); an inclined guide plate (26) provided at the discharge end of the base (21); and a temporary placement unit (27) located below the guide plate (26); a grinding unit (3) provided on the other side of the rotary positioning unit (1), including: a grinding wheel (31); a second drive motor (34) mounted on the grinding bracket (32) and driving the grinding wheel (31); an X-axis drive device (33) for driving the grinding bracket (32) to move horizontally; and a Z-axis drive device (35) for driving the grinding bracket (32) to move vertically.

2. The intercooler heat dissipation tube polishing equipment according to claim 1, characterized in that, The inner diameter clamping block (11) includes: a cylindrical base (111) with an anodized surface; and a tapered inlet (112) with a tapered angle of 25°–35° and a hard chrome plating.

3. The intercooler heat dissipation tube polishing equipment according to claim 1, characterized in that, The synchronous belt drive mechanism (15) includes: a driving pulley (151) keyed to the output shaft of the first drive motor (16); two driven pulleys (152) interference-fitted to the ends of two support tubes (17); and a synchronous belt (153) meshing with the driving pulley (151) and the driven pulleys (152).

4. The intercooler heat dissipation tube polishing equipment according to claim 1, characterized in that, The temporary placement unit (27) includes: two pairs of inner diameter abutment blocks (271), the contact surfaces of which are provided with arc-shaped grooves with curvature matching the inner diameter of the heat dissipation pipe; a pressing cylinder (272), which drives the inner diameter abutment blocks (271) to close through a floating joint; a fixed column (274), with a guide groove (273) with buffer rubber on the top; and an infrared beam sensor (275), with the transmitting end and receiving end respectively located on both sides of the temporary placement unit (27), and the beam parallel to the axis of the fixed column (274).

5. The intercooler heat dissipation tube polishing equipment according to claim 4, characterized in that, The inner diameter abutment block (271) includes: a positioning tube (2711) with an anodized surface; and a tapered guide tube (2712) with a tapered angle of 25°–35° and a hard chrome plated surface.

6. The intercooler heat dissipation tube polishing equipment according to claim 1, characterized in that, The X-axis drive device (33) includes: an X-axis linear motor module (331), whose mover is bolted to the grinding bracket (32), an X-axis drive motor (332), and an X-axis drive rail (333); the Z-axis drive device (35) includes: a Z-axis linear motor module (351), a Z-axis drive motor (352), and a Z-axis drive rail (353).

7. The intercooler heat dissipation tube polishing equipment according to claim 4, characterized in that, The guide groove (273) of the fixed column (274) has a depth greater than 1 / 2 of the diameter of the heat dissipation pipe, and the Shore hardness of the buffer rubber pad is 50±5HA.

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