An engine high-temperature-resistant aluminum alloy cylinder body post-casting forming treatment device

Abstract

The application relates to the technical field of cylinder part machining, in particular to a post-casting forming treatment equipment for a high-temperature-resistant aluminum alloy cylinder body of an engine, which comprises a lifting table, a cutter expanding device, a cutter expanding rod, a honing head, a cutter, an oil stone and a control system, the lifting table is provided with the cutter expanding device and the cutter expanding rod, and a cutter core is slidably arranged in the cutter expanding rod. The adjusting piece is arranged, the distance between the supporting blocks is adjusted through the adjusting piece, the supporting blocks abut against the cutter, both ends of the cutter can be supported, cutter inclination is avoided, the uniformity of the grinding force at the cylinder hole and the special-shaped hole of the engine cylinder body can be ensured when the engine cylinder body is honed, the pressure sensor is arranged, the pressure sensor is electrically connected with the control system, the pressure sensor can control the start and stop of the adjusting piece, the adjusting precision of the position of the supporting block and the adjusting speed of the support can be improved, and the processing precision and the working efficiency of the treatment equipment are further improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of cylinder part processing technology, in particular to a post-casting forming treatment equipment for an engine high-temperature-resistant aluminum alloy cylinder. BACKGROUND

[0002] After the cylinder hole of the engine cylinder is cast and formed, the cylinder hole needs to be processed through rough boring, semi-precision boring, precision boring and honing. As a key process for cylinder hole finishing, honing can effectively improve the surface roughness, shape accuracy and size consistency by grinding the inner wall of the cylinder hole with an oil stone. However, during honing, the oil stone will be gradually worn out, causing the oil stone to fail to fit the inner wall of the cylinder hole, resulting in a decrease in the diameter of the cylinder hole for subsequent processing and failing to meet the precision requirements. The existing technology usually uses an intelligent sensor system to real-time control the displacement of the cutter bar, so that the oil stone can self-adaptively compensate for the wear amount along the radial direction of the honing head, thereby maintaining the processing precision. The distance between the oil stone and the inner wall of the cylinder hole is controlled by the intelligent sensor system to move the cutter bar, so that the cutter bar extrudes the cutter along the radial direction of the honing head, thereby moving the oil stone along the honing head to adjust the distance between the oil stone and the inner wall of the cylinder hole. However, when the treatment equipment processes a cylinder hole with a special-shaped hole (such as a cooling liquid hole or a lubricating oil hole), the oil stone lacks support when moving to the special-shaped hole, causing the oil stone to tilt to one side of the special-shaped hole, resulting in uneven distribution of the grinding force at the edge area of the special-shaped hole, and causing excessive material removal at the special-shaped hole, forming an unintended chamfer or horn-shaped deformation. Such defects can damage the cylindricity of the cylinder hole, reduce the sealing performance of the cylinder hole with the piston ring, and further affect the compression ratio and combustion efficiency of the engine.

[0003] To solve the problem, the invention patent with the application number CN202211663126.8 provides a honing clamp for processing a special-shaped cylinder hole of an engine cylinder. The honing clamp fills the special-shaped hole with a filler block, so that the inner surface of the cylinder hole forms a simple straight hole, thereby ensuring that both ends of the oil stone can be supported, and the processing precision of the cylinder hole is ensured. However, the filler block needs to be frequently replaced after being worn out, and the positioning and calibration during replacement takes a long time, reducing the production efficiency. If a sensor is introduced to dynamically adjust the position of the filler block, a gap will be generated between the filler block and the mating surface of the cylinder hole, and the oil stone may be broken due to impact, scratch the inner wall of the cylinder hole, or even cause the cylinder to be scrapped.

[0004] Therefore, in order to ensure the processing precision of the cylinder in real time, a post-casting forming treatment equipment for an engine high-temperature-resistant aluminum alloy cylinder is provided. SUMMARY

[0005] The application aims to provide a post-casting forming treatment device for an engine high-temperature-resistant aluminum alloy cylinder body, which supports the cutter through an adaptive adjusting member, can ensure the uniformity of grinding force and the processing precision of the treatment device when processing the cylinder bore with a special-shaped hole, and can quickly adjust the position after the adjusting member is worn to ensure the working efficiency of the treatment device.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme.

[0007] A post-casting forming treatment device for an engine high-temperature-resistant aluminum alloy cylinder body, comprising a lifting platform, a cutter expanding device, a cutter expanding rod, a honing head, a cutter, an oil stone, and a control system, wherein the lifting platform is provided with the cutter expanding device and the cutter expanding rod, the cutter expanding rod is internally slidably provided with an expanding core, the cutter expanding rod and the expanding core are connected with the cutter expanding device, the honing head is connected to the cutter expanding rod, the honing head is elastically connected with a plurality of cutters, the cutters are slidably connected with the honing head, the oil stone is arranged on the cutters, the expanding core is provided with an adjusting cone, the cutters are provided with adjusting pins in contact with the adjusting cone, the cutter expanding device is used for controlling the rotation of the cutter expanding rod and the axial movement of the expanding core, the control system is electrically connected with the cutter expanding device, the cutter expanding rod is connected with a support ring, the support ring is provided with an adjusting member, the adjusting member is provided with a plurality of support blocks consistent with the number of cutters, the support blocks are provided with pressure sensors, one end of the cutter extends to be attached to the support blocks, and the pressure sensors are electrically connected with the control system.

[0008] By arranging the adjusting member, adjusting the distance between the support blocks through the adjusting member, and making the support blocks abut against the cutters, both ends of the cutters can be supported, thereby avoiding the inclination of the cutters, ensuring the uniformity of grinding force at the special-shaped hole of the cylinder bore when honing the engine cylinder body, ensuring the processing precision of the engine cylinder body, and enabling the distance to be adjusted through the adjusting member even if the support blocks or the cutters are worn after multiple processing, thereby improving the service life of the device, the oil stone moves smoothly during the processing process without impact, thereby avoiding the damage of the cylinder body caused by the breakage of the oil stone, the arrangement of the pressure sensors and the electrical connection between the pressure sensors and the control system enable the pressure sensors to control the start and stop of the adjusting member, improve the adjustment precision of the position of the support blocks and the adjustment speed of the support, and further improve the processing precision and working efficiency of the treatment device.

[0009] Preferably, the lifting platform is provided with a connecting spring, one end of the connecting spring is rotatably connected with the support ring, the support ring is keyed to the cutter expanding rod, and a rotating seat is rotatably arranged below the support ring.

[0010] By elastically connecting the rotating seat to the lifting platform, when the lifting platform drives the cutter rod to move up and down, the rotating seat can abut against the cylinder, at this time the honing head and the supporting ring produce relative displacement, and when the oil stone moves to the special-shaped hole, the cutter abuts against the supporting block at this time, which can guarantee the processing precision of the cylinder hole, and when processing the lower part of the special-shaped hole, the oil stone and the cylinder hole are in uniform contact at this time, and the cutter is separated from the supporting block, therefore, the abrasion of the supporting block and the cutter can be reduced, the service life of the parts is improved, the length of the cutter is reduced, the bending strength of the cutter is avoided to be reduced due to the too long length, and the processing precision of the processing device is avoided to be reduced due to the deformation of the cutter under the extrusion of the supporting block.

[0011] Preferably, the adjusting member comprises a plurality of adjusting cylinders opened on the supporting ring, an adjusting rod is slidably installed on the adjusting cylinder, the adjusting rod is elastically connected with the supporting ring, a plurality of supporting blocks are arranged on the plurality of adjusting rods respectively, an oil cylinder is opened on the supporting ring, the oil cylinder is communicated with the adjusting cylinder, an electromagnetic valve one is arranged at the communicated part of the oil cylinder and the adjusting cylinder, a pressing piston is slidably installed in the oil cylinder, an electric push rod is arranged above the pressing piston, a pressing plate is arranged on the electric push rod, and the electromagnetic valve one and the electric push rod are electrically connected with the control system.

[0012] The hydraulic oil enters through the compression of the electric push rod and the pressing piston, and when the pressure value of the pressure sensor reaches the set value, the electromagnetic valve one is closed, at this time, the position adjustment of the supporting block is completed, the service life of the parts is improved, and the working efficiency is improved, the setting of the mode can reduce the setting of the external hydraulic oil supply, thereby reducing the manufacturing difficulty and the manufacturing cost, and one oil cylinder is communicated with a plurality of adjusting cylinders, the plurality of pressure sensors can reach the set value through the compression of one electric push rod, thereby reducing the setting of the power source and the manufacturing cost.

[0013] Preferably, a sliding block is slidably installed on the cutter, and elastic sleeves are connected between the sliding block and the cutter on both sides.

[0014] The sliding block is slidably installed on the cutter, which can reduce the abrasion of the supporting block and the cutter, reduce the radial force of the pressure sensor, and improve the service life of the pressure sensor, the elastic sleeves can avoid the flushing of the lubricating oil between the sliding block and the cutter by the cooling liquid in the machining process, the lower elastic sleeves can keep the sliding block in a constant position when the sliding block contacts the supporting block, ensure that the supporting block is pressed on the sliding block when the cutter moves up, and ensure the reliability of the device operation.

[0015] Preferably, a plurality of pressure relief cylinders are arranged on the support ring, a pressure relief block and a pressure relief rod are slidably arranged in the pressure relief cylinders, the pressure relief block and the pressure relief rod are elastically connected, a guide slope is arranged on the pressure relief rod, the guide slope abuts against the cutter, the pressure relief cylinders are communicated with the adjusting cylinders, an electromagnetic valve two is arranged at the communication position of the pressure relief cylinders and the adjusting cylinders, the electromagnetic valve two is electrically connected with the control system, and the electromagnetic valve two is an electromagnetic one-way valve.

[0016] The relative sliding between the support ring and the cutter rod generates a gap, so that the support ring and the cutter rod cannot be coaxial, and when the cutter rises and abuts against the support block, the support block interferes with the movement of the sliding block, so that the support block cannot be pressed on the sliding block, and the support block cannot support the cutter. Therefore, by arranging the pressure relief cylinder, the electromagnetic valve two is opened, the adjusting rod is reset under the action of the elastic connection, and part of the hydraulic oil enters the pressure relief rod, the support block is retracted, the sliding block is not interfered with the support block when moving upward, and when the cutter moves downward, the sliding block moves to the maximum displacement position, the cutter no longer presses the pressure relief rod, the support rod is retracted, and relative friction between the sliding block and the support block is avoided, so that the pressure sensor generates a radial force and is damaged. The electromagnetic valve two is an electromagnetic one-way valve, the hydraulic oil can enter the adjusting cylinder after the electromagnetic valve two is closed, and the hydraulic oil cannot flow back, so that the support rod is retracted due to the backflow of the hydraulic oil caused by the vibration of the equipment during the machining process, the cutter loses support and the problem of uneven grinding force occurs again, and the processing accuracy of the cylinder body is ensured.

[0017] Preferably, the diameter of the pressure relief rod is equal to that of the pressure relief cylinder, air grooves are symmetrically arranged on the two sides of the pressure relief cylinder, an exhaust hole is arranged on the pressure relief rod, and an exhaust one-way valve is arranged in the exhaust hole.

[0018] When the pressure relief rod moves to the air groove, the pressure relief rod can be reset under the action of the elastic connection, when the pressure relief rod moves away from the air groove, the pressure relief rod moves through the exhaust one-way valve to exhaust the gas in the pressure relief cylinder, and after the exhaust, the pressure relief rod cannot be reset under the action of the elastic connection, so that the pressure relief rod continuously presses the cutter, the reciprocating stress generated by the elastic connection easily causes stress fatigue of the cutter and damages the cutter, and the service life of the cutter is prolonged.

[0019] Preferably, the adjusting cylinder is inclined, and the oil cylinder is communicated with the highest position of the adjusting cylinder.

[0020] The adjusting cylinder is inclined, and the oil cylinder is communicated with the highest position of the adjusting cylinder, so that the bubbles in the adjusting rod can be exhausted in time after the electromagnetic valve one is opened, and the existence of the bubbles does not affect the positioning accuracy of the support block.

[0021] Preferably, a protruding portion is arranged above the cutter, and the protruding portion protrudes to one side of the pressure relief rod.

[0022] The tool has a protrusion on top. When the tool moves upward, the protrusion can squeeze the pressure relief rod. As the tool continues to move, the protrusion protrudes to the side of the pressure relief rod, so that the lower part of the tool will not come into contact with the pressure relief rod. This prevents the pressure relief rod from being located above the protective sleeve and damaging the protective sleeve when the tool moves upward.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By setting an adjusting component, the distance between the support blocks can be adjusted, and the support blocks can be made to abut against the cutting tool, so that both ends of the cutting tool can be supported, thereby preventing the cutting tool from tilting. This ensures the uniformity of grinding force at the irregular holes of the cylinder bore during honing of the engine cylinder block. Furthermore, by setting a pressure sensor and electrically connecting the pressure sensor to the control system, the pressure sensor can control the start and stop of the adjusting component, which can improve the adjustment accuracy of the support block position and the adjustment speed of the support, further improving the processing accuracy and working efficiency of the processing equipment.

[0025] 2. By elastically connecting the rotating seat to the lifting platform, the adjusting component is installed on the rotating seat. When processing the area below the irregular hole, the oilstone is in uniform contact with the cylinder hole. When the oilstone moves to the irregular hole, the cutter will then abut against the support block. Therefore, this setting can reduce the wear of the support block and the cutter, improve the service life of the parts, and reduce the length of the cutter. This avoids the reduction of the bending strength of the cutter due to its excessive length, thereby preventing the cutter from deforming under the pressure of the support block and affecting the processing accuracy of the device.

[0026] 3. By sliding the slider on the tool, the wear between the support block and the tool can be reduced, and the radial force of the pressure sensor can be reduced, thus improving the service life of the pressure sensor. The telescopic sleeve can prevent the coolant from washing away the lubricating oil between the slider and the tool during the machining process. The lower telescopic sleeve is elastic, which can keep the slider in a constant position when it is in contact with the support block, ensuring that the support block can be pressed against the slider when the tool moves upward, thus ensuring the reliability of the device operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a partial cross-sectional view of the overall structure of the present invention;

[0029] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0030] Figure 4 for Figure 1 Sectional view at point BB;

[0031] Figure 5 For Figure 4 Local enlarged view at C;

[0032] Figure 6 For the invention of oil stone to the cross section view of the special-shaped hole;

[0033] Figure 7 For Figure 6 Local enlarged view at D;

[0034] Figure 8 For the invention of support block cross-sectional view;

[0035] Figure 9 For the invention of tool structure schematic diagram.

[0036] Figure: 1, lifting platform; 2, the knife device; 3, the knife rod; 4, the honing head; 5, the tool; 51, the adjusting pin; 52, the convex part; 6, the oil stone; 7, the core; 71, the adjusting cone; 8, the support ring; 9, the adjusting part; 91, the adjusting cylinder; 92, the adjusting rod; 93, the electromagnetic valve one; 94, the extrusion piston; 95, the electric push rod; 96, the extrusion plate; 10, the support block; 11, the pressure sensor; 12, the connecting spring; 13, the rotating seat; 14, the oil cylinder; 15, the sliding block; 16, the telescopic sleeve; 17, the pressure relief cylinder; 18, the pressure relief block; 19, the pressure relief rod; 20, the guide slope; 21, the electromagnetic valve two; 22, the air groove; 23, the exhaust hole; 24, the exhaust one-way valve; 25, the cylinder; 251, the cylinder hole; 252, the special-shaped hole. DETAILED DESCRIPTION

[0037] Please refer to Figures 1 to 9 , the present application provides a kind of engine high temperature resistant aluminum alloy cylinder after casting forming treatment equipment, technical scheme is as follows:

[0038] A kind of engine high temperature resistant aluminum alloy cylinder after casting forming treatment equipment, refer to Figures 1 to 9The utility model relates to a honing device, including lift platform 1, be provided with the cutter device 2 with the cutter rod 3 on lift platform 1, the inside sliding installation of cutter rod 3 has the core 7 of rising, cutter rod 3 with the core 7 of rising are connected with the cutter device 2, the cutter device 2 is the cutter device 2 of honing machine control rising cutter rod 3 rotation and control core 7 of rising of prior art, inside mainly includes servo motor and hydraulic cylinder, servo motor is used for control rising cutter rod 3 rotation, and hydraulic cylinder is used for control core 7 of rising axial movement, and moreover, the core 7 of rising needs and rising cutter rod 3 elastic connection, is used for the reset of core 7 of rising, and the honing head 4 of connecting is provided on cutter rod 3, and the cutter 5 of elastic connection is provided on honing head 4, and the cutter 5 is slidably connected with honing head 4, and the adjusting cone 71 is equipped on the core 7 of rising, and the adjusting pin 51 is equipped on the cutter 5, and the oil stone 6 is set on the cutter 5, in operation, lift platform 1 drives rising cutter rod 3 to move down, pushes the core 7 of rising through the cutter device 2, makes adjusting cone 71 extrude adjusting pin 51, thereby promotes the cutter 5 to move, makes the oil stone 6 adhere on the inner wall of cylinder hole 251, detects the pressure of oil stone 6 and the inner wall of cylinder hole 251 through control system, and then according to the pressure size control core 7 stops moving, after the oil stone 6 and the inner wall of cylinder hole 251 adhere, lift platform 1 drives rising cutter rod 3 to move up and down, the cutter device 2 drives rising cutter rod 3 to rotate, makes honing head 4 reciprocating movement and rotation, thereby realizes the polishing of cylinder hole 251, lift platform 1 is connected with the connecting spring 12, the connecting spring 12 is connected with the support ring 8, the support ring 8 is keyed with rising cutter rod 3, the support ring 8 is equipped with the adjusting part 9, the adjusting part 9 is equipped with the support block 10, the support block 10 is equipped with the pressure sensor 11, when lift platform 1 moves down, the rotating seat 13 adheres on the top of cylinder body 25, and because the rotating seat 13 is elastically connected with lift platform 1, at this time, honing head 4 and rotating seat 13 generate relative displacement, when processing the lower part of special-shaped hole 252, at this time, the oil stone 6 and the uniform contact of cylinder hole 251, at this time, the cutter 5 and support block 10 separate, when the oil stone 6 moves to special-shaped hole 252, at this time, the cutter 5 will be with support block 10 abut, thereby supporting the cutter 5, thereby guaranteeing the uniformity of grinding force, guaranteeing the processing progress of processing device, when processing special-shaped hole 252, the cutter 5 will be with support block 10 abut, thereby reducing the length of cutter 5, avoiding the bending strength reduction of cutter 5 due to the length being too long, thereby avoiding the deformation of cutter 5 when being extruded by support block 10 to affect the processing precision of processing device, when completing the processing of a cylinder body 25, lift device moves up, makes the cutter 5 move to support block 10, control system controls the cutter device 2, makes the core 7 of rising extrude cutter 5, makes the oil stone 6 adhere on the inner wall of cylinder hole 251, at this time, adjusting part 9 starts adjusting the position of support block 10, makes the value of pressure sensing in control system and pressure sensor 11 all reach the set value, at this time, control system controls the core 7 of rising to stop moving, and control adjusting part 9 stops adjusting the position of support block 10, thereby quickly adjusting the position of support block 10, improves work efficiency, and guarantees the precision of subsequent cylinder body 25 processing.The adjusting part 9 comprises a plurality of adjusting cylinders 91 opened on the supporting ring 8, adjusting rods 92 are slidably installed on the adjusting cylinders 91, the adjusting rods 92 are elastically connected with the supporting ring 8, a plurality of supporting blocks 10 are arranged on the adjusting rods 92 respectively, an oil cylinder 14 is opened on the supporting ring 8, the oil cylinder 14 is communicated with the adjusting cylinders 91, an electromagnetic valve one 93 is arranged at the communicated part of the oil cylinder 14 and the adjusting cylinders 91, an extrusion piston 94 is slidably installed in the oil cylinder 14, an electric push rod 95 is arranged above the extrusion piston 94, an extrusion plate 96 is arranged on the electric push rod 95, and the electromagnetic valve one 93 and the electric push rod 95 are electrically connected with the control system; when the position of the supporting block 10 is adjusted, the control system controls the electromagnetic valve one 93 to open, at this time, the adjusting rod 92 is reset under the action of the elastic connection, at this time, the electric push rod 95 moves downward, the extrusion plate 96 is pressed to the extrusion piston 94, so that the hydraulic oil is extruded into the adjusting cylinder 91, the adjusting rod 92 and the supporting block 10 are driven to move, after the supporting block 10 contacts with the cutter 5, the value of the pressure sensor 11 gradually increases, when the pressure of the plurality of pressure sensors 11 reaches the set value, the control system controls the electromagnetic valve one 93 to close, and controls the electric push rod 95 to retract, at this time, the position adjustment of the supporting block 10 is completed, and the setting of the adjusting mode can reduce the setting of the external hydraulic oil supply, thereby reducing the manufacturing difficulty and the manufacturing cost, the oil cylinder 14 is communicated with a plurality of adjusting cylinders 91, the plurality of pressure sensors 11 can reach the set value through the extrusion of the electric push rod 95, thereby reducing the setting of the power source and reducing the manufacturing cost; the adjusting cylinder 91 is arranged obliquely, and the oil cylinder 14 is communicated with the highest part of the adjusting cylinder 91; after the bubbles are generated in the adjusting rod 92, the bubbles can be discharged in time after the electromagnetic valve one 93 is opened, because the bubbles are compressible, the existence of the bubbles can avoid affecting the positioning accuracy of the supporting block 10; the cutter 5 is slidably installed with a sliding block 15, the sliding block 15 is connected with the cutter 5 through elastic sleeves 16 on both sides, and the lower elastic sleeve 16 is elastic; by slidably installing the sliding block 15 on the cutter 5, the wear of the supporting block 10 and the cutter 5 can be reduced, the radial force of the pressure sensor 11 can be reduced, and the service life of the pressure sensor 11 can be improved, the setting of the elastic sleeve 16 can avoid that the cooling liquid flushes away the lubricating oil between the sliding block 15 and the cutter 5 in the machining process, the lower elastic sleeve 16 is elastic, so that the sliding block 15 can be kept at a constant position when the sliding block 15 is not in contact with the supporting block 10, the supporting block 10 can be pressed on the sliding block 15 when the cutter 5 moves upward, and the reliability of the processing device operation can be ensured; the cutter 5 is provided with a protruding part 52, and the protruding part 52 protrudes to one side of the pressure relief rod 19; the protruding part 52 can extrude the pressure relief rod 19 when the cutter 5 moves upward, and the cutter 5 will not contact with the pressure relief rod 19 at the lower part due to the protruding part 52 protruding to one side of the pressure relief rod 19 when the cutter 5 continues to move, so that the pressure relief rod 19 is not above the protective sleeve 16, and the protective sleeve 16 is not damaged when the cutter 5 moves upward.

[0039] Referring to Figures 2 to 9The support ring 8 is provided with a plurality of pressure relief cylinders 17, the pressure relief block 18 and the pressure relief rod 19 are slidably installed in the pressure relief cylinders 17, the pressure relief block 18 and the pressure relief rod 19 are elastically connected, the pressure relief rod 19 is provided with a guide inclined surface 20, the guide inclined surface 20 abuts against the cutter 5, the pressure relief cylinder 17 is communicated with the adjusting cylinder 91, the communication position of the pressure relief cylinder 17 and the adjusting cylinder 91 is provided with the electromagnetic valve two 21, the electromagnetic valve two 21 is electrically connected with the control system; when the cutter 5 moves downward, the cutter 5 no longer extrudes the pressure relief rod 19, at this time the control system controls the electromagnetic valve two 21 to open, the hydraulic oil in the adjusting cylinder 91 enters the inside of the pressure relief cylinder 17, so that when the cutter 5 moves upward, the sliding block 15 will not interfere with the support block 10, when the cutter 5 moves upward, the cutter 5 extrudes on the pressure relief rod 19, so as to extrude the pressure relief block 18 through the pressure relief rod 19, push the hydraulic oil to enter the adjusting cylinder 91 again, make the adjusting rod 92 extend to keep the original extension length, and make the adjusting rod 92 move along the axial direction and extrude on the sliding block 15, so as to avoid that the support ring 8 causes the cutter 5 to rise and adhere to the support block 10 due to the existence of the sliding gap, which will cause the support block 10 to interfere with the movement of the sliding block 15, cause the support block 10 to be unable to extrude on the sliding block 15, cause the support block 10 to be unable to support the cutter 5 and affect the processing precision of the processing equipment; the electromagnetic valve two 21 is an electromagnetic one-way valve; after the electromagnetic valve is opened for 1s, the adjusting rod 92 is retracted, and then the control system controls the electromagnetic valve two 21 to be closed, when the cutter 5 moves upward and extrudes the pressure relief rod 19, the hydraulic oil can enter the adjusting cylinder 91, but cannot flow back to the pressure relief cylinder 17, thereby avoiding that the hydraulic oil flows back due to equipment vibration during the machining process, causing the support rod to retract, thereby causing the cutter 5 to lose support and the problem of uneven grinding force occurs again, thereby ensuring the processing precision of the cylinder body 25; the pressure relief rod 19 and the pressure relief cylinder 17 are equal in diameter, the pressure relief cylinder 17 is symmetrically provided with an air vent groove 22 on both sides, the pressure relief rod 19 is provided with an exhaust hole 23, the exhaust hole 23 is provided with an exhaust one-way valve 24, and the exhaust one-way valve 24 is used for exhausting the gas in the pressure relief cylinder 17; when the cutter 5 starts to extrude the pressure relief rod 19, the pressure relief rod 19 is always extruded by the cutter 5 under the action of elastic connection, and when the pressure relief rod 19 is staggered with the air vent groove 22, the pressure relief rod 19 is matched with the pressure relief cylinder 17 at this time, along with the movement of the pressure relief rod 19, the gas in the pressure relief cylinder 17 is exhausted from the exhaust one-way valve 24 along the exhaust port, at this time the pressure relief rod 19 cannot be popped out under the action of negative pressure, thereby avoiding that the pressure relief rod 19 continuously pressurizes the cutter 5, avoiding that the reciprocating stress of the pressure relief rod 19 due to elastic connection easily causes stress fatigue of the cutter 5 and damages the cutter 5, thereby improving the service life of the cutter 5, and when the electromagnetic valve two 21 is opened, the hydraulic oil in the adjusting rod 92 extrudes the pressure relief block 18, the pressure relief rod 19 is moved to the air vent groove 22 by the negative pressure in the pressure relief cylinder 17, at this time the pressure relief rod 19 loses the negative pressure effect and can be reset under the action of elastic connection.

[0040] Working principle: refer to Figures 1 to 9In operation, the lifting device moves down to move the honing head 4 to the bottom of the cylinder hole 251, and the rotating seat 13 is attached to the cylinder 25. At this time, the cutter holder 2 controls the plunger 7 to press the cutter 5. When the control system detects that the pressure between the oil stone 6 and the inner wall of the cylinder hole 251 reaches the set pressure, the lifting platform 1 is controlled to move back and forth, and the cutter holder 3 is controlled to rotate to process the cylinder 25. During the upward movement of the cutter 5, the electromagnetic valve 21 is opened for 11 seconds. At this time, the adjusting rod 92 is pressed to push the hydraulic oil in the adjusting cylinder 91 into the relief cylinder 17 under the action of the elastic connection, and then the relief block 18 is moved. The relief block 18 moves to the air vent groove 22 under the action of negative pressure, so that the relief rod 19 is reset and extends out under the action of the elastic connection. The electromagnetic valve 21 is opened for 11 seconds and then closed. When the cutter 5 moves up, the cutter 5 is pressed on the relief rod 19, so that the relief rod 19 presses the relief block 18, and the relief block 18 presses the hydraulic oil in the cylinder into the adjusting cylinder 91, so as to push the adjusting rod 92 and the supporting block 10 to extend out, so that the supporting block 10 is pressed on the sliding block 15 to provide support for the cutter 5, so as to ensure the uniformity of the grinding force of the oil stone 6 when processing the special-shaped hole 252, and ensure the processing precision of the processing device. When the cutter 5 moves down, the electromagnetic valve 21 is opened for 11 seconds. When the cutter 5 is separated from the relief rod 19, the supporting rod is retracted. At this time, the relief block 18 is popped out again under the action of the hydraulic oil pressure. At this time, the supporting block 10 is separated from the sliding block 15, so as to avoid the relative displacement between the sliding block 15 and the supporting block 10 when the sliding block 15 moves to the maximum displacement position, which causes the sensor to generate a radial force and be damaged. At this time, the cutter 5 moves down to process the lower part of the special-shaped hole 252. In this way, the processing of the inner wall of the cylinder hole 251 is completed. After the workpiece is processed, the cutter 5 stays at the position where the relief rod 19 is completely pressed. At this time, the electromagnetic valve 93 is opened, and the electromagnetic valve 21 is closed. At this time, the adjusting rod 92 is reset, and the internal air is discharged from the oil cylinder 14. At this time, the control system controls the cutter holder 2 and the electric push rod 95 to move, so that the plunger 7 presses the cutter 5, and the pressing plate 96 presses the pressing piston 94, so that the hydraulic oil enters the adjusting cylinder 91 to press the adjusting rod 92 and the supporting block 10 to extend out. When the control system detects that the pressure between the oil stone 6 and the inner wall of the cylinder hole 251 and the pressure of the pressure sensor 11 reaches the set value, the plunger 7 is retracted, and the electromagnetic valve 93 is closed. At this time, the lifting device can move up. At this time, the processed cylinder 25 can be taken out, and the cylinder 25 to be processed can be placed. The above processing is repeated to process the next cylinder 25.

[0041] The above describes one embodiment of the present application in detail with reference to the drawings, but the present application is not limited to the above-described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments without departing from the principles and ideas of the present application shall still fall within the protection scope of the present application.

Claims

1. A casting and forming post-processing device for high-temperature resistant aluminum alloy cylinder blocks for engines, characterized in that, The utility model relates to a kind of honing machine, including lifting platform (1), expanding tool device (2), expanding tool rod (3), honing head (4), tool (5), oil stone (6), control system, the lifting platform (1) is equipped with expanding tool device (2) with expanding tool rod (3), expanding tool rod (3) inside sliding installation has expanding core (7), expanding tool rod (3) and expanding core (7) are connected with expanding tool device (2), honing head (4) is connected in expanding tool rod (3), a plurality of tools (5) are elastically connected in honing head (4), and tool (5) and honing head (4) slidingly connect, oil stone (6) is arranged on tool (5), adjusting cone (71) is equipped on expanding core (7), adjusting pin (51) is equipped on tool (5) and is contacted with adjusting cone (71), expanding tool device (2) is used to control expanding tool rod (3) rotation and expanding core (7) axial movement, control system is electrically connected with expanding tool device (2), expanding tool rod (3) is connected with support ring (8), adjusting member (9) is equipped on support ring (8), adjusting member (9) is equipped on a plurality of support blocks (10) with the same number of tool (5), pressure sensor (11) is equipped on support block (10), tool (5) one end extends to and is attached with support block (10), pressure sensor (11) is electrically connected with control system; Connecting spring (12) is equipped on the lifting platform (1), one end of connecting spring (12) is rotatably connected with support ring (8), support ring (8) is keyed with expanding tool rod (3), rotatably mounted rotating seat (13) below support ring (8); Adjusting member (9) includes a plurality of adjusting cylinders (91) opened in support ring (8), adjusting rod (92) is slidingly installed on adjusting cylinder (91), adjusting rod (92) is elastically connected with support ring (8), a plurality of support blocks (10) are respectively arranged on a plurality of adjusting rods (92), oil cylinder (14) is opened on support ring (8), oil cylinder (14) is communicated with adjusting cylinder (91), electromagnetic valve one (93) is equipped at the communicated part of oil cylinder (14) and adjusting cylinder (91), extrusion piston (94) is slidingly installed in oil cylinder (14), electric push rod (95) is equipped above extrusion piston (94) of lifting platform (1), extrusion plate (96) is equipped on electric push rod (95), electromagnetic valve one (93) and electric push rod (95) are electrically connected with control system; A plurality of pressure relief cylinders (17) are opened on support ring (8), pressure relief block (18) and pressure relief rod (19) are slidingly installed in pressure relief cylinder (17), pressure relief block (18) and pressure relief rod (19) are elastically connected, guide inclined plane (20) is equipped on pressure relief rod (19), guide inclined plane (20) is abutted with tool (5), pressure relief cylinder (17) is communicated with adjusting cylinder (91), electromagnetic valve two (21) is equipped at the communicated part of pressure relief cylinder (17) and adjusting cylinder (91), electromagnetic valve two (21) is electrically connected with control system, electromagnetic valve two (21) is electromagnetic one-way valve.

2. The post-machining treatment apparatus for a high-temperature-resistant aluminum alloy engine block according to claim 1, characterized by The sliding block (15) is slidably installed on the cutter (5), and the sliding block (15) is connected with the cutter (5) on both sides through the telescopic sleeve (16), and the telescopic sleeve (16) at the lower side is provided with elasticity.

3. The post-machining treatment apparatus for a high-temperature-resistant aluminum alloy engine block according to claim 1, characterized by The pressure relief rod (19) is equal in diameter to the pressure relief cylinder (17), symmetrical air grooves (22) are formed on both sides of the pressure relief cylinder (17), the pressure relief rod (19) is provided with an exhaust hole (23), the exhaust hole (23) is internally provided with an exhaust one-way valve (24), and the exhaust one-way valve (24) is used for discharging the gas in the pressure relief cylinder (17).

4. The post-machining treatment apparatus for a high-temperature-resistant aluminum alloy engine block according to claim 1, characterized by The adjusting cylinder (91) is obliquely arranged, and the oil cylinder (14) is communicated with the highest part of the adjusting cylinder (91).

5. The post-machining treatment apparatus for a high-temperature-resistant aluminum alloy engine block according to claim 1, characterized by The cutter (5) is provided with a protruding part (52) on the upper side, and the protruding part (52) protrudes to one side of the pressure relief rod (19).

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