Automatic honing device and honing method for automobile cylinder sleeve

Abstract

The invention provides an automatic honing device and method for an automobile cylinder sleeve, and relates to the technical field of automobile cylinder sleeve honing, the honing device comprises a rotating disc and a honing assembly, the rotating disc is driven by a driving part, and the rotating disc is provided with a honing station and a feeding and discharging station; a material pressing disc capable of ascending and descending is arranged above the feeding and discharging station, a sliding baffle is elastically connected to the material pressing disc, and an ejector block is arranged below the sliding baffle. The honing station and the feeding and discharging station are each provided with a clamping barrel, the upper end face of each clamping barrel can abut against the corresponding ejector block, a supporting rod is elastically connected into each clamping barrel, the end of each supporting rod is elastically connected with a limiting block, and a trigger piece is arranged in each clamping barrel. A bearing table is arranged on the rack and located below the feeding and discharging station. The feeding and discharging station and the honing station can be switched, feeding, discharging and honing are conducted synchronously, on the feeding and discharging station, feeding of the cylinder sleeve to be honed is achieved, discharging of the honed cylinder sleeve is completed at the same time, and the feeding and discharging efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile cylinder liner honing, and in particular to an automatic honing device and a honing method for an automobile cylinder liner. Background Art

[0002] Automobile cylinder liners are accessories in automobile engine piston cylinders. As wear-and-tear materials, cylinder liners are convenient for replacement after the engine cylinder is worn out. The upper end of the cylinder liners generally has a mounting top ring designed as an integral part of the cylinder liners. The mounting top ring can be used to limit the position of the automobile cylinder liners during installation, making it easier for workers to install the automobile cylinder liners and the engine.

[0003] The honing device of the cylinder liner is mainly used to grind the inner surface of the cylinder liner to achieve the required finish and precision, and ensure the sealing and lubricity between the piston and the cylinder liner. For example, the patent document with the announcement number CN115781427B discloses a cylinder liner inner wall grinding device, which includes an adjustable grinding head assembly and a bottom fixing assembly. When in use, the cylinder liner is hoisted to the top of the bottom fixing assembly through the hoisting equipment. After the bottom fixing assembly fixes the cylinder liner, the adjustable grinding head assembly extends into the cylinder liner, and the reduction motor drives the grinding screw of the adjustable assembly to grind the inner wall of the cylinder liner.

[0004] In the grinding equipment, after grinding a cylinder liner, the polished cylinder liner needs to be removed before placing the next cylinder liner to be polished, which is inefficient. In order to improve the grinding efficiency, there are also grinding equipment with a double-station structure in the prior art. For example, the patent document with the announcement number CN216681567U discloses a pneumatic lifting double-station rotary table mechanism for grinding medium and large castings. The rotary table mechanism includes a rotary table plate, and the rotary table plate is provided with a first processing station and a second processing station. The motor drives the two processing stations on the rotary table plate to interchange positions to save loading and unloading time.

[0005] However, one station of the mechanism is grinding while the other station is loading and unloading. During loading and unloading, the workpiece needs to be removed manually or by a robot before the workpiece to be polished can be placed. The loading and unloading time is long, which affects the grinding efficiency. Summary of the invention

[0006] In view of this, the present invention provides an automatic honing device and a honing method for automobile cylinder liners, which solves the technical problem in the prior art that when honing a cylinder liner, the honed cylinder liner needs to be removed before the cylinder liner to be honed can be put in, thereby reducing the efficiency of loading and unloading.

[0007] In order to solve the above technical problems, on the one hand, the present invention provides an automatic honing device for automobile cylinder sleeves, comprising a turntable rotatably arranged on a frame and a honing assembly arranged above one side of the turntable; the turntable is driven by a driving member, a honing station is arranged on one side of the turntable, and a loading and unloading station is arranged on the other side of the turntable; A pressing plate for installing the cylinder sleeve is provided above the loading and unloading station, a linear driver that can drive the pressing plate to rise and fall is provided on the frame, a sliding baffle that limits the vertical position of the cylinder sleeve installation top ring is elastically connected to the pressing plate, a top block is provided below the sliding baffle, and both the top block and the sliding baffle are provided with inclined surfaces that slide with each other; The honing station and the loading and unloading stations are both provided with a clamping cylinder whose upper end surface can abut against the top block, a support rod is elastically connected inside the clamping cylinder, and a limit block is elastically connected to the end of the support rod for limiting the vertical position of the installed top ring, a trigger member is provided inside the clamping cylinder, and the trigger member and the limit block are both provided with two inclined surfaces that slide with each other.

[0008] By adopting the above technical solution, the honed cylinder sleeve is transferred to the loading and unloading station, the cylinder sleeve to be honed is installed under the pressing plate, and the linear actuator drives the pressing plate to move downward, so that the cylinder sleeve to be honed pushes the honed cylinder sleeve in the clamping cylinder to move, so that the limit block in the clamping cylinder releases the limit on the honed cylinder sleeve, and the honed cylinder sleeve falls onto the receiving table. At the same time, the cylinder sleeve to be honed falls into the clamping cylinder and completes the clamping. The present invention realizes the unloading of the honed cylinder sleeve while loading the cylinder sleeve to be honed at the loading and unloading station, thereby improving the efficiency of loading and unloading, and further improving the efficiency of honing.

[0009] Preferably, a feed channel is provided under the pressing plate, and the feed channel includes an arc section and vertical sections arranged on both sides of the arc section, the vertical section is provided with a slot for clamping the installation top ring, the vertical section is provided with a spring pin for limiting the horizontal direction of the installation top ring, and the sliding baffle is located at the connection between the arc section and the vertical section.

[0010] By adopting the above technical solution, the mounting top ring of the cylinder liner is pushed from the groove to the arc section, the sliding baffle is located below the mounting top ring to limit the vertical direction of the mounting top ring, and the spring pin is located on the side of the mounting top ring to limit the horizontal direction of the mounting top ring, thereby increasing the firmness of the connection between the cylinder liner and the lower part of the press plate.

[0011] Preferably, an annular sliding plate elastically connected to the clamping cylinder is provided below the clamping cylinder, a top rod slidably connected to the clamping cylinder is provided on the sliding plate, a sliding groove is provided on the side wall of the clamping cylinder, a clamping plate slidably connected to the top rod is provided in the sliding groove, and the upper end surface of the sliding groove and the upper end surface of the clamping plate are both provided with mutually matching inclined surfaces; A mounting platform is arranged below the rotating disk on the frame, an upwardly inclined slope is arranged from the loading and unloading station to the honing station, and two tops which can abut against the slope are arranged on the sliding disk in the radial direction.

[0012] By adopting the above technical solution, when the clamping cylinder moves from the loading and unloading station to the honing station, the top head abuts against the slope and drives the sliding plate to move upward, the sliding plate drives the push rod to move upward, the push rod drives the clamping plate to move along the radial direction of the cylinder sleeve and clamp and center the cylinder sleeve, so that the cylinder sleeve and the clamping cylinder are concentric, which is conducive to the honing assembly to hone the cylinder sleeve smoothly. After honing, the clamping cylinder moves from the honing station to the loading and unloading station, the sliding plate moves downward with the slope, and the clamping plate releases the clamping of the cylinder sleeve, which is conducive to the concentricity of the cylinder sleeve and the clamping cylinder during the unloading process of the cylinder sleeve, and reduces the wear of the cylinder sleeve or the clamping cylinder caused by the cylinder sleeve hitting the clamping cylinder during the loading and unloading process.

[0013] Preferably, a receiving platform is provided on the frame below the loading and unloading stations, and the receiving platform is used to receive the cylinder sleeve falling from the clamping barrel.

[0014] Preferably, a receiving plate is elastically provided on the upper end surface of the receiving platform, and a cleaning brush capable of cleaning the inner wall of the cylinder sleeve is rotatably connected to the receiving platform, and the cleaning brush passes through the receiving plate and is threadedly connected to the receiving plate.

[0015] By adopting the above technical solution, the cylinder sleeve falling from the clamping barrel falls onto the receiving plate, and the cleaning brush extends into the cylinder sleeve. Under the action of the gravity of the cylinder sleeve, the receiving plate descends and drives the cleaning brush to rotate to clean the inner wall of the cylinder sleeve.

[0016] Preferably, the sliding plate is provided with a rod-passing hole through which the support rod can pass, and elastic wedges are elastically connected to both sides of the rod-passing hole on the sliding plate, and two limiting wedges that can abut against the sides of the elastic wedges are slidably connected between the two elastic wedges. The two elastic wedges can drive the two limiting wedges to move closer to or away from each other as the sliding plate rises and falls, thereby realizing the opening and closing of the rod-passing hole.

[0017] By adopting the above technical solution, at the honing station, the sliding plate drives the two elastic wedges to rise until the upper end faces of the elastic wedges abut against the lower end face of the clamping barrel, and the two elastic wedges push the two limit wedges to approach each other, closing the rod hole, reducing the downward movement of the support rod caused by vibration during the honing process, thereby facilitating the stability of the limit block at the end of the support rod to limit the installation top ring of the cylinder sleeve. At the loading and unloading station, the sliding plate drives the two elastic wedges to descend, and under the action of elastic force, the upper end face of the elastic wedge extends out of the upper end face of the sliding plate and separates from the lower end face of the clamping barrel, and the two elastic wedges lose their support for the limit wedges. After the support rod moves downward, it can pass through the rod hole, which is conducive to the cylinder sleeve in the clamping barrel falling onto the receiving platform.

[0018] Preferably, a baffle is provided on the frame in the middle of the honing station and the loading and unloading stations, and two through holes are formed on the baffle for allowing the clamping cylinder to pass through, and hinged plates are hinged on both sides of the through holes, and brushes for cleaning the clamping cylinder are installed on the opposite sides of the two hinged plates.

[0019] By adopting the above technical solution, during the switching process between the honing station and the loading and unloading station, the clamping cylinder passes through the through hole, the brush contacts the clamping cylinder, and cleans the grinding fluid on the clamping cylinder, thereby reducing the amount of grinding fluid reaching the loading and unloading station, which is beneficial to reducing the contamination of the grinding fluid to the loading and unloading station.

[0020] Preferably, a partition that can enclose the honing station is provided between the frame and the baffle.

[0021] By adopting the above technical solution, the partition plate and the baffle plate can block the honing liquid splashing during honing, thereby reducing the distance of the honing liquid splashing.

[0022] Preferably, the honing assembly includes a grinding head arranged at a honing station, a second linear drive for driving the grinding head to rise and fall, and a grinding head motor for driving the grinding head to rotate.

[0023] By adopting the above technical solution, the second linear drive drives the grinding head to rise and fall, and the grinding head motor drives the grinding head to rotate, thereby realizing the honing of the inner wall of the cylinder sleeve.

[0024] On the other hand, the present invention provides an automated honing method for automobile cylinder liners, using the automated honing device for automobile cylinder liners, comprising the following steps: S1: Install the cylinder sleeve to be honed on the press plate, and the sliding baffle limits the installation top ring; S2: Linear drive 1 drives the pressing plate to move downward, the cylinder sleeve to be honed pushes the honed cylinder sleeve to move downward, the honed cylinder sleeve pushes the support rod in the clamping tube to move downward until the limit block abuts against the contact piece, so that the limit block releases the limit on the installation top ring, the honed cylinder sleeve falls onto the receiving table, and the support rod is reset under the action of elastic force; S3: After the pressure plate moves down to the top block abutting the clamping barrel, the sliding baffle releases the limit on the installation top ring, and the cylinder liner to be honed falls into the clamping barrel. The limit block limits the installation top ring to complete the clamping. The driving member drives the turntable to rotate so that the clamped cylinder liner is rotated to the honing station for honing.

[0025] By adopting the above technical solution, the cylinder liner to be honed is loaded on the pressing plate, and the cylinder liner to be honed is moved downward while the honed cylinder liner in the clamping barrel can be unloaded, thereby improving the efficiency of loading and unloading, and further improving the efficiency of honing.

[0026] The beneficial effects of the above technical solution of the present invention are as follows: 1. The present invention can switch between the loading and unloading stations and the honing stations, and the loading and unloading and honing are carried out synchronously. In addition, at the loading and unloading stations, the cylinder liner to be honed is loaded while the cylinder liner after honing is unloaded, thereby improving the efficiency of loading and unloading, and further improving the efficiency of honing.

[0027] 2. At the honing station, the clamping plate in the clamping barrel moves along the radial direction of the cylinder liner and clamps and centers the cylinder liner, so that the cylinder liner and the clamping barrel are concentric, which is beneficial to the honing assembly to hone the cylinder liner smoothly; at the loading and unloading station, the clamping plate releases the clamping of the cylinder liner, which is beneficial to the concentricity of the cylinder liner and the clamping barrel during the unloading process of the cylinder liner, reducing the wear of the cylinder liner or the clamping barrel caused by the cylinder liner hitting the clamping barrel during the loading and unloading process.

[0028] 3. The cylinder sleeve falling from the clamping barrel falls onto the receiving plate, and the cleaning brush extends into the cylinder sleeve. Under the action of the gravity of the cylinder sleeve, the receiving plate descends and drives the cleaning brush to rotate to clean the inner wall of the cylinder sleeve.

[0029] 4. Baffles and partitions are installed around the honing station to block the honing fluid splashing during honing. At the same time, during the switching process between the honing station and the loading and unloading station, the brush on the baffle contacts the clamping cylinder and cleans the grinding fluid on the clamping cylinder, reducing the amount of grinding fluid reaching the loading and unloading station, which is beneficial to reduce the pollution of the grinding fluid to the loading and unloading station. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an automatic honing device for automobile cylinder sleeves of the present invention; Figure 2 It is a structural schematic diagram of the cylinder sleeve of the present invention installed on the pressing plate; Figure 3 It is a partial cross-sectional view of the pressing plate of the present invention; Figure 4 It is a partial cross-sectional view of the turntable and the chuck of the present invention; Figure 5 It is a cross-sectional view of the chuck when the support rod of the present invention is in a descending state; Figure 6 It is a cross-sectional view of the chuck of the present invention when it is in the loading and unloading station; Figure 7 It is a partial cross-sectional view of the sliding plate and the supporting rod of the present invention when they are in the honing station.

[0031] In the figure: 1, frame; 11, mounting table; 12, baffle; 121, hinged plate; 122, brush; 13, partition; 14, receiving table; 141, receiving plate; 142, cleaning brush; 2, turntable; 21, honing station; 22, loading and unloading station; 3, pressing plate; 31, spring pin; 32, sliding baffle; 33, top block; 34, inclined plane 1; 35, feeding channel; 351, arc section; 352, vertical section; 353, notch; 4, linear drive 1; 5, clamping cylinder; 51, Limiting groove; 511, support rod; 512, limiting block; 513, trigger member; 514, inclined plane 2; 52, slide groove; 521, push rod; 522, return spring; 523, clamping plate; 524, inclined plane 3; 6, sliding plate; 61, push head; 62, rod hole; 63, elastic wedge; 64, limiting wedge; 7, honing assembly; 71, grinding head; 72, linear drive 2; 73, grinding head motor; 74, lifting plate; 75, connecting rod; 76, rotating drum; 8, cylinder sleeve; 81, install the top ring. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 7 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0033] Example This embodiment provides an automatic honing device for automobile cylinder sleeves, such as Figure 1 As shown, it includes a frame 1, a turntable 2, a honing assembly 7 and a driving member (not shown in the figure).

[0034] like Figure 1 As shown, a mounting platform 11 is fixedly provided on the frame 1, and a turntable 2 is rotatably connected to the mounting platform 11, and the rotation of the turntable 2 is driven by a driving member. The driving member is a driving motor, and the driving motor (not shown in the figure) is arranged on the frame 1 and inside the mounting platform 11.

[0035] like Figure 1 As shown, a honing station 21 and a loading and unloading station 22 are provided on the turntable 2 , and the rotation of the turntable 2 can realize the switching of the honing station 21 and the loading and unloading station 22 .

[0036] like Figure 1 and Figure 2As shown, a pressing plate 3 for mounting the cylinder sleeve 8 is provided above the loading and unloading station 22, and a linear actuator 4 capable of driving the pressing plate 3 to rise and fall is provided on the frame 1. A feeding channel 35 is provided below the pressing plate 3, and the feeding channel 35 includes an arc segment 351 and vertical segments 352 arranged on both sides of the arc segment 351, and the arc segment 351 can abut against half of the circumference of the cylinder sleeve 8.

[0037] like Figure 2 As shown, the vertical section 352 is provided with a groove 353 for clamping the mounting top ring 81 of the cylinder liner 8, and a spring pin 31 is installed on the vertical section 352. The two spring pins 31 are located on both sides of the mounting top ring 81 and can move radially along the cylinder liner 8, so as to realize the horizontal limitation of the mounting top ring 81.

[0038] like Figure 2 and Figure 3 As shown, the connection between the vertical section 352 and the arc section 351 is elastically connected with a sliding baffle 32. The two sliding baffles 32 are located below the top ring 81 and can move radially along the cylinder sleeve 8, so as to limit the vertical direction of the top ring 81. A top block 33 is provided below the sliding baffle 32, which can push the sliding baffle 32 to move radially along the cylinder sleeve 8. The upper end surface of the top block 33 and the middle part of the sliding baffle 32 are provided with a mutually matching inclined surface 34. The top block 33 is provided with a step so that the lower end of the top block 33 extends out of the pressing plate 3. The upward movement of the top block 33 can push the sliding baffle 32 to move to the side away from the axis of the cylinder sleeve 8 to release the limit of the top ring 81.

[0039] like Figure 1 and Figure 4 As shown, both the honing station 21 and the loading and unloading station 22 are provided with a feeding hole, and a clamping cylinder 5 that can abut against the top block 33 is fixedly installed on the feeding hole, and a plurality of limit grooves 51 are opened on the inner wall of the clamping cylinder 5, and a support rod 511 that can slide up and down is elastically connected in the limit groove 51, and a limit block 512 that can move along the radial direction of the cylinder liner 8 is elastically connected to the end of the support rod 511, and the limit block 512 can limit the vertical direction of the installation top ring 81 of the cylinder liner 8.

[0040] like Figure 1 and Figure 4 As shown, a triggering member 513 is provided on one side of the support rod 511 in the limiting groove 51, which can drive the limiting block 512 to move radially along the cylinder sleeve 8. The triggering member 513 is a rod-shaped structure, and the upper end surface of the triggering member 513 and the middle part of the limiting block 512 are provided with mutually matching inclined surfaces 514. The support rod 511 drives the limiting block 512 to move downward, which can push the limiting block 512 to move to the side away from the axis of the cylinder sleeve 8, so as to release the limit of the installation top ring 81.

[0041] like Figure 1As shown, a receiving platform 14 is provided on the frame 1 below the loading and unloading station 22. The receiving platform 14 is used to receive the cylinder sleeve 8 dropped from the clamping cylinder 5. A receiving plate 141 is elastically provided on the upper end surface of the receiving platform 14. A cleaning brush 142 capable of cleaning the inner wall of the cylinder sleeve 8 is rotatably connected to the receiving platform 14. The bristles of the upper part of the cleaning brush 142 are columnar and can extend into the interior of the cylinder sleeve 8. The brush rod at the lower part of the cleaning brush 142 penetrates the receiving plate 141 and is threadedly connected to the receiving plate 141.

[0042] like Figure 1 As shown, the cylinder sleeve 8 to be honed is mounted on the pressing plate 3, as shown in FIG. Figure 2 As shown, the spring pin 31 limits the horizontal direction of the top ring 81, the sliding baffle 32 limits the vertical direction of the top ring 81, and the linear drive 4 drives the pressing plate 3 to move downward. Figure 4 and Figure 5 As shown, the cylinder sleeve 8 to be honed pushes the honed cylinder sleeve 8 downward, and the honed cylinder sleeve 8 pushes the support rod 511 in the clamping tube 5 downward to the limit block 512 abutting against the contacting piece 513, so that the limit block 512 releases the limit on the installation top ring 81, and the honed cylinder sleeve 8 falls onto the receiving platform 14, and the support rod 511 is reset under the action of elastic force; after the pressing plate 3 moves down to the top block 33 abutting against the clamping tube 5, the sliding baffle 32 releases the limit on the installation top ring 81, and the cylinder sleeve 8 to be honed falls into the clamping tube 5, and the limit block 512 limits the installation top ring 81, completing the clamping. In this embodiment, the cylinder sleeve 8 to be honed can be loaded and unloaded at the same time, which improves the efficiency of loading and unloading, and thus improves the efficiency of honing. The cylinder sleeve 8 dropped from the clamping tube 5 falls onto the receiving plate 141 , and the cleaning brush 142 extends into the cylinder sleeve 8 . Under the action of the gravity of the cylinder sleeve 8 , the receiving plate 141 descends and drives the cleaning brush 142 to rotate, thereby cleaning the inner wall of the cylinder sleeve 8 .

[0043] like Figure 4 and Figure 5 As shown, a sliding groove 52 is opened on the side wall of the clamping cylinder 5 at one side of the limiting groove 51, and the sliding groove 52 corresponds to the limiting groove 51 one by one. A push rod 521 passing through the lower end of the clamping cylinder 5 is slidably connected in the sliding groove 52, and the lower end of the push rod 521 is fixedly connected to the annular sliding plate 6, and the sliding plate 6 is located between the clamping cylinder 5 and the mounting platform 11. A reset spring 522 is sleeved on the push rod 521, and the two ends of the reset spring 522 are respectively connected to the sliding plate 6 and the clamping cylinder 5.

[0044] like Figure 4 and Figure 5As shown, a clamping plate 523 capable of clamping the side wall of the cylinder sleeve 8 is provided in the slide groove 52, and the upper end of the push rod 521 is located in the limiting groove 51 and is slidably connected to the lower end of the clamping plate 523, and the clamping plate 523 can slide relative to the push rod 521 along the radial direction of the cylinder sleeve 8. The upper end surface of the slide groove 52 and the upper end surface of the clamping plate 523 are both provided with mutually matching inclined surfaces 524, and the lower end surface of the slide groove 52 and the lower end of the clamping plate 523 are also provided with mutually matching inclined surfaces 524. The upward movement of the push rod 521 can push the clamping plate 523 to move to the side close to the axial direction of the cylinder sleeve 8, so as to achieve the clamping and centering of the cylinder sleeve 8.

[0045] like Figure 1 and Figure 4 As shown, an upwardly inclined slope (not shown) is provided on the mounting platform 11 from the loading and unloading station 22 to the honing station 21, and two plugs 61 are provided on the sliding plate 6 in the radial direction, both of which can abut against the slope.

[0046] like Figure 1 and Figure 4 As shown, during the transfer from the loading and unloading station 22 to the honing station 21, due to the upward inclination of the slope, the top head 61 drives the sliding plate 6 to move upward, the sliding plate 6 drives the ejector rod 521 to move upward, and the clamping plate 523 clamps and centers the cylinder sleeve 8, so that the cylinder sleeve 8 and the clamping cylinder 5 are concentric, which is conducive to the honing assembly 7 to hone the cylinder sleeve 8 smoothly. After honing, the clamping cylinder 5 moves from the honing station 21 to the loading and unloading station 22, the sliding plate 6 moves downward following the slope, and the clamping plate 523 releases the clamping of the cylinder sleeve 8, which is conducive to the concentricity of the cylinder sleeve 8 and the clamping cylinder 5 during the unloading process of the cylinder sleeve 8, and reduces the situation in which the cylinder sleeve 8 hits the clamping cylinder 5 during the loading and unloading process and causes wear on the cylinder sleeve 8 or the clamping cylinder 5.

[0047] like Figure 6 and Figure 7 As shown, the sliding plate 6 is provided with a rod hole 62 for allowing the support rod 511 to pass through, and elastic wedge blocks 63 are elastically connected to both sides of the rod hole 62 on the sliding plate 6. The elastic wedge blocks 63 can extend out of the upper end surface of the sliding plate 6, and the sliding plate 6 can drive the elastic wedge blocks 63 to move upward until the upper end surface of the elastic wedge blocks 63 abuts against the lower end surface of the clamping cylinder 5.

[0048] like Figure 6 and Figure 7 As shown, two limiting wedge blocks 64 are connected between the two elastic wedge blocks 63 in a circumferential sliding manner along the sliding disk 6. The two limiting wedge blocks 64 are located below the rod hole 62. The limiting wedge blocks 64 abut against and cooperate with the adjacent sides of the elastic wedge blocks 63. The two limiting wedge blocks 64 can approach or move away from each other to achieve the closing or opening of the rod hole 62.

[0049] like Figure 7As shown, at the honing station 21, the slide plate 6 drives the two elastic wedges 63 to rise until the upper end surface of the elastic wedges 63 abuts against the lower end surface of the clamping tube 5, and the two elastic wedges 63 push the two limit wedges 64 to approach each other, closing the rod hole 62, reducing the downward movement of the support rod 511 caused by vibration during the honing process, thereby facilitating the stability of the limit block 512 at the end of the support rod 511 to limit the installation top ring 81 of the cylinder sleeve 8. Figure 6 As shown, at the loading and unloading station 22, the sliding plate 6 drives the two elastic wedge blocks 63 to descend. Under the action of the elastic force, the upper end faces of the elastic wedge blocks 63 extend out of the upper end face of the sliding plate 6 and are separated from the lower end face of the clamping tube 5. The two elastic wedge blocks 63 lose their support for the limiting wedge blocks 64. The support rod 511 can pass through the rod hole 62 after moving downward, which is beneficial for the cylinder sleeve 8 in the clamping tube 5 to fall onto the receiving platform 14.

[0050] like Figure 1 As shown, a baffle 12 is provided on the frame 1 in the middle of the honing station 21 and the loading and unloading station 22. The baffle 12 is provided with two through holes for the clamping cylinder 5 to pass through. Both sides of the through holes are hinged with hinged plates 121. The two hinged plates 121 are installed on the opposite sides thereof with brushes 122 for cleaning the clamping cylinder 5.

[0051] like Figure 1 As shown, during the switching process between the honing station 21 and the loading and unloading station 22, the clamping cylinder 5 passes through the through hole, the brush 122 contacts the clamping cylinder 5, and cleans the grinding fluid on the clamping cylinder 5, thereby reducing the amount of grinding fluid reaching the loading and unloading station 22, which is beneficial to reducing the contamination of the grinding fluid to the loading and unloading station 22.

[0052] like Figure 1 As shown, a partition 13 is provided between the frame 1 and the baffle 12 to enclose the honing station 21. The partition 13 and the baffle 12 can block the honing fluid splashed during honing.

[0053] like Figure 1 As shown, the honing assembly 7 includes a grinding head 71 , a linear drive 2 72 and a grinding head motor 73 .

[0054] like Figure 1 As shown, a lifting plate 74 is slidably connected to the frame 1, and a connecting rod 75 that penetrates the lifting plate 74 is rotatably connected to the lifting plate 74. The lower end of the connecting rod 75 is fixedly connected to the grinding head 71, and the linear drive 2 72 and the grinding head motor 73 are both arranged above the frame 1. The linear drive 2 72 drives the lifting plate 74 to rise and fall, thereby driving the grinding head 71 to rise and fall. The upper end of the connecting rod 75 is sleeved in a rotating drum 76, and the rotating drum 76 and the connecting rod 75 are connected by a key. The grinding head motor 73 drives the rotating drum 76 to rotate, thereby driving the connecting rod 75 and the grinding head 71 to rotate. The linear drive 1 4 and the linear drive 2 72 in this embodiment are both cylinders or hydraulic cylinders.

[0055] An automatic honing method for automobile cylinder liners, using the above-mentioned automatic honing device for automobile cylinder liners, comprises the following steps: S1: The cylinder sleeve 8 to be honed is mounted on the pressing plate 3, the spring pin 31 limits the horizontal direction of the top ring 81, and the sliding baffle 32 limits the vertical direction of the top ring 81; S2: The linear drive 4 drives the pressing plate 3 to move downward, and the cylinder sleeve 8 to be honed pushes the honed cylinder sleeve 8 to move downward. The honed cylinder sleeve 8 pushes the support rod 511 in the clamping tube 5 to move downward until the limit block 512 abuts against the contact piece 513, so that the limit block 512 releases the limit on the installation top ring 81, and the honed cylinder sleeve 8 falls onto the receiving platform 14, and the support rod 511 is reset under the action of elastic force; S3: After the pressing plate 3 moves down until the top block 33 abuts against the clamping tube 5, the sliding baffle 32 releases the limit on the installation top ring 81, and the cylinder sleeve 8 to be honed falls into the clamping tube 5. The limit block 512 limits the installation top ring 81, and the clamping is completed; S4: The driving member drives the turntable 2 to rotate. During the transfer of the clamped cylinder sleeve 8 from the loading and unloading station 22 to the honing station 21, due to the upward inclination of the slope of the mounting table 11, the top head 61 drives the sliding plate 6 to move upward, and the sliding plate 6 drives the top rod 521 to move upward, and the clamping plate 523 clamps and centers the cylinder sleeve 8; at the honing station 21, the sliding plate 6 drives the two elastic wedge blocks 63 to rise until the upper end surface of the elastic wedge blocks 63 abuts against the lower end surface of the clamping cylinder 5, and the two elastic wedge blocks 63 push the two limit wedge blocks 64 to approach each other, closing the through-rod hole 62; S5: After the linear drive 2 72 drives the grinding head 71 to move downward, the grinding head 71 hones the cylinder liner 8. After honing, the driving member drives the turntable 2 to rotate. In the process of the honed cylinder liner 8 rotating from the honing station 21 to the loading and unloading station 22, the sliding plate 6 moves downward along the slope, and the clamping plate 523 releases the clamping of the cylinder liner 8. At the loading and unloading station 22, the sliding plate 6 drives the two elastic wedge blocks 63 to descend. Under the action of elastic force, the upper end surface of the elastic wedge block 63 extends out of the upper end surface of the sliding plate 6 and is separated from the lower end surface of the clamping tube 5. The two elastic wedge blocks 63 lose support for the limiting wedge block 64. After the support rod 511 moves downward, it can pass through the rod hole 62, so that loading and unloading can be realized. The driving member drives the turntable 2 to rotate, and this cycle is repeated to realize the automatic honing of the automobile cylinder liner 8.

[0056] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic honing device for automobile cylinder liners, comprising a turntable (2) rotatably arranged on a frame (1) and a honing assembly (7) arranged above one side of the turntable (2); the turntable (2) is driven by a driving member, a honing station (21) is arranged on one side of the turntable (2), and a loading and unloading station (22) is arranged on the other side of the turntable (2); the characteristics are: A pressing plate (3) for mounting a cylinder sleeve (8) is provided above the loading and unloading station (22), a linear actuator (4) capable of driving the pressing plate (3) to rise and fall is provided on the frame (1), a sliding baffle (32) for limiting the vertical position of a mounting top ring (81) of the cylinder sleeve (8) is elastically connected to the pressing plate (3), a top block (33) is provided below the sliding baffle (32), and both the top block (33) and the sliding baffle (32) are provided with inclined surfaces (34) that slide in cooperation with each other; The honing station (21) and the loading and unloading station (22) are both provided with a clamping cylinder (5) whose upper end surface can abut against the top block (33); a support rod (511) is elastically connected inside the clamping cylinder (5); the end of the support rod (511) is elastically connected to a limit block (512) that can limit the vertical direction of the installation top ring (81); a trigger member (513) is provided inside the clamping cylinder (5); and the trigger member (513) and the limit block (512) are both provided with inclined surfaces (514) that are slidably matched with each other.

2. The automatic honing device for automobile cylinder liners according to claim 1 is characterized in that: A feed channel (35) is provided below the pressing plate (3), the feed channel (35) comprising an arc section (351) and vertical sections (352) arranged on both sides of the arc section (351), the vertical section (352) being provided with a notch (353) for clamping and mounting a top ring (81), the vertical section (352) being provided with a spring pin (31) for limiting the horizontal position of the top ring (81), and the sliding baffle (32) being located at the connection between the arc section (351) and the vertical section (352).

3. The automatic honing device for automobile cylinder liner according to claim 2, characterized in that: An annular sliding plate (6) elastically connected to the clamping cylinder (5) is provided below the clamping cylinder (5); a top rod (521) slidably connected to the clamping cylinder (5) is provided on the sliding plate (6); a sliding groove (52) is provided on the side wall of the clamping cylinder (5); a clamping plate (523) slidably connected to the top rod (521) is provided in the sliding groove (52); and an upper end surface of the sliding groove (52) and an upper end surface of the clamping plate (523) are both provided with inclined surfaces (524) that are slidably matched with each other; A mounting platform (11) is provided on the frame (1) below the turntable (2), an upwardly inclined slope is provided on the mounting platform (11) from the loading and unloading station (22) to the honing station (21), and two top heads (61) are provided on the sliding plate (6) in a radial direction and can abut against the slope.

4. The automatic honing device for automobile cylinder liners according to claim 3 is characterized in that: A receiving platform (14) is provided on the frame (1) below the loading and unloading station (22), and the receiving platform (14) is used to receive the cylinder sleeve (8) dropped from the clamping cylinder (5).

5. The automatic honing device for automobile cylinder liners according to claim 4 is characterized in that: A receiving plate (141) is elastically provided on the upper end surface of the receiving platform (14). A cleaning brush (142) capable of cleaning the inner wall of the cylinder sleeve (8) is rotatably connected to the receiving platform (14). The cleaning brush (142) passes through the receiving plate (141) and is threadedly connected to the receiving plate (141).

6. The automatic honing device for automobile cylinder liners according to claim 5, characterized in that: The sliding plate (6) is provided with a rod-passing hole (62) through which the support rod (511) can pass. The sliding plate (6) is elastically connected with elastic wedge blocks (63) on both sides of the rod-passing hole (62). Two limit wedge blocks (64) that can abut against the side surfaces of the elastic wedge blocks (63) are slidably connected between the two elastic wedge blocks (63). The two elastic wedge blocks (63) can drive the two limit wedge blocks (64) to move closer to or farther from each other as the sliding plate (6) rises and falls, thereby realizing the opening and closing of the rod-passing hole (62).

7. The automatic honing device for automobile cylinder liners according to claim 6, characterized in that: A baffle (12) is provided on the frame (1) at a middle portion between the honing station (21) and the loading and unloading station (22), the baffle (12) being provided with two through holes through which the clamping cylinder (5) can pass, hinged plates (121) are hingedly connected on both sides of the through holes, and brushes (122) for cleaning the clamping cylinder (5) are installed on the opposite sides of the two hinged plates (121).

8. The automatic honing device for automobile cylinder liners according to claim 7, characterized in that: A partition plate (13) capable of enclosing a honing station (21) is provided between the frame (1) and the baffle plate (12).

9. The automatic honing device for automobile cylinder liners according to claim 8, characterized in that: The honing assembly (7) comprises a grinding head (71) arranged at the honing station (21), a second linear drive (72) for driving the grinding head (71) to rise and fall, and a grinding head motor (73) for driving the grinding head (71) to rotate.

10. An automated honing method for automobile cylinder liners, using the automated honing device for automobile cylinder liners according to claim 1, characterized in that: The following steps are involved: S1: The cylinder sleeve (8) to be honed is mounted on the press plate (3), and the sliding baffle (32) is used to limit the installation top ring (81); S2: The linear drive 1 (4) drives the pressing plate (3) to move downward, and the cylinder sleeve (8) to be honed pushes the honed cylinder sleeve (8) to move downward. The honed cylinder sleeve (8) pushes the support rod (511) in the clamping tube (5) to move downward until the limit block (512) abuts against the contact piece (513), so that the limit block (512) releases the limit on the installation top ring (81), and the honed cylinder sleeve (8) falls onto the receiving platform (14), and the support rod (511) is reset under the action of the elastic force; S3: After the pressing plate (3) moves down to the top block (33) and abuts against the clamping cylinder (5), the sliding baffle (32) releases the limit on the installation top ring (81), and the cylinder sleeve (8) to be honed falls into the clamping cylinder (5). The limit block (512) limits the installation top ring (81), and the clamping is completed. The driving member drives the turntable (2) to rotate so that the clamped cylinder sleeve (8) is rotated to the honing station (21) for honing.

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