A honing re-rounding tool for processing a thin-wall cylinder liner

Abstract

This utility model discloses a honing and rounding fixture for machining thin-walled cylinder liners, comprising: a circular support sleeve, on the outside of which a circular baffle box with an open top is fixedly fitted; an annular sealing plate is glued and fixed to the top of the circular baffle box; and four L-shaped fixing seats are fixedly connected to the bottom of the circular baffle box in an annular shape at equal intervals. This utility model, through a series of structures, facilitates the simultaneous contraction and movement of multiple extrusion rods to uniformly and synchronously control and clamp the outer side of the thin-walled cylinder liner in multiple directions, achieving safe and stable fixation. This avoids insufficient clamping force leading to loose clamping or excessive clamping force leading to damage. It also allows for the application of clamping force at multiple points to compress and round the cylinder liner when it bulges outward, improving clamping safety and machining effect. Furthermore, during multi-point clamping, a multi-point, large-area support mechanism is integrally formed on the outer side of the thin-walled cylinder liner, effectively reducing the phenomenon of outward bulging deformation caused by machining pressure during the honing process on the inner side, and improving the machining qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled cylinder liner processing technology, specifically a honing and rounding tooling for processing thin-walled cylinder liners. Background Technology

[0002] In the field of thin-walled cylinder liner honing, existing technologies mainly employ clamping at both ends of the cylinder liner or using simple external tooling for clamping. However, these traditional methods have significant drawbacks: 1. Thin-walled cylinder liners inevitably exhibit irregular outward bulging, and existing fixtures struggle to achieve precise multi-point clamping and rounding on the outer side, resulting in insufficient clamping safety and poor processing results; 2. Under the process mode of clamping at both ends, the inner side of the cylinder liner is easily deformed by outward bulging under processing pressure due to weak external support during honing, lacking an effective external support guarantee mechanism, which seriously affects the product processing qualification rate. In view of this, this application proposes a honing rounding tooling for processing thin-walled cylinder liners to solve the above-mentioned problems. Summary of the Invention

[0003] The purpose of this invention is to provide a honing and rounding tool for machining thin-walled cylinder liners, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a honing and rounding tool for machining thin-walled cylinder liners, comprising: A circular support sleeve has a circular baffle box with an open top fixed on its outer side. An annular sealing plate is glued to the top of the circular baffle box, and four L-shaped fixing seats are fixedly connected to the bottom of the circular baffle box in an annular shape at equal intervals. The PLC controller is fixedly installed on the left side of the round baffle box; The drive motor is fixedly installed on the left side of the circular baffle box and electrically connected to the PLC controller; The extrusion rods are arranged in multiple sets at equal intervals in a ring within the circular support sleeve; The pressure-measuring threaded transverse guide drive assembly consists of multiple sets, which are installed in a ring at equal intervals inside the circular support sleeve and are electrically connected to the PLC controller. The opposing sides of the multiple extrusion rods are respectively fixedly connected to the corresponding pressure-measuring threaded transverse guide drive assembly. The linkage rotary drive assembly is rotatably mounted on the outside of the circular support sleeve and located inside the circular retaining box, and is fixedly connected to the output shaft end of the drive motor. The linkage rotary drive assembly is used to drive multiple pressure-measuring threaded transverse guide drive assemblies to rotate synchronously when the drive motor starts, and the two opposite pressure-measuring threaded transverse guide drive assemblies rotate in opposite directions. The multiple pressure-measuring threaded transverse guide drive assemblies are used to drive multiple extrusion rods to move synchronously and close to each other or to move back and forth in opposite directions when rotating, and to detect the extrusion pressure when they are close to each other and clamped. In conjunction with the PLC controller, the drive motor is automatically shut down when the extrusion pressure reaches the preset value. This realizes the multi-directional uniform synchronous pressure control and clamping work of driving multiple extrusion rods to move close to each other and clamping the outer side of the thin-walled cylinder liner in a multi-directional uniform synchronous manner. The multi-directional uniform synchronous pressure control and clamping work can not only secure and stabilize the cylinder liner, but also compress and round it back when it deforms outward on the outside.

[0005] Preferably, the linkage rotary drive assembly includes a first bevel gear and a plurality of second bevel gears. The first bevel gear is rotatably sleeved on a circular support sleeve and located inside a circular retaining box. The plurality of second bevel gears are meshed in a ring at equal intervals on the outside of the first bevel gear. Two opposite second bevel gears are symmetrically arranged. The left side of the leftmost second bevel gear is fixedly connected to the end of the output shaft of the drive motor.

[0006] Preferably, the pressure-measuring threaded transverse guide drive assembly includes a movable base, screws, movable rods, two transverse guide tubes, two transverse guide rods, and a pressure sensor. The opposing sides of the plurality of extrusion rods are respectively fixedly connected to the corresponding two transverse guide tubes. The movable rods are slidably sleeved on the corresponding two transverse guide tubes and fixedly installed with the corresponding movable base. The pressure sensor is fixedly connected between the corresponding movable rod and the extrusion rod. The transverse guide rods are slidably sleeved inside the corresponding transverse guide tubes. The end of the transverse guide rod is fixedly connected to the inner side of the circular support sleeve. The plurality of screws are rotatably embedded in the inner side of the circular support sleeve in an annular arrangement. The opposing ends of the plurality of screws all extend into the circular baffle box and are respectively fixedly connected to the corresponding second bevel gear. The plurality of pressure sensors are electrically connected to the PLC controller. The movable base is threadedly sleeved on the screws.

[0007] Preferably, anti-slip pads are glued and fixed to one side of each of the plurality of extrusion rods.

[0008] Preferably, the movable seat has a threaded hole on the side away from the corresponding movable rod, and the threaded hole is threadedly connected to the corresponding screw.

[0009] Preferably, the top of the first bevel gear has a through hole, and a first bearing is fixedly sleeved inside the through hole. The inner ring of the first bearing is fixedly sleeved with the outer side of the circular support sleeve.

[0010] Preferably, the number of extrusion rods is eight to twelve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By combining the set round support sleeve, extrusion rod, anti-slip rubber pad, PLC controller, round baffle box, linkage rotary drive assembly and pressure-measuring threaded transverse guide drive assembly, it can drive multiple extrusion rods to retract and move in close proximity to achieve multi-directional uniform synchronous precise pressure control and clamping on the outer side of the thin-walled cylinder liner by detecting the extrusion pressure and automatically closing after reaching the preset pressure value. This multi-directional uniform synchronous pressure control and clamping achieves safe and stable fixation, avoiding the phenomenon of insufficient clamping force leading to insufficient clamping or excessive clamping force leading to clamping damage. 2. It can also be squeezed back to round when the outer side is deformed by applying clamping force through multi-point pressure control, thereby improving clamping safety and processing effect; 3. By using multiple extrusion rods to close together and control the pressure clamping, a multi-point large-area support mechanism can be formed on the outside of the thin-walled cylinder liner during multi-point clamping. This effectively reduces the phenomenon of outward deformation caused by processing pressure during the honing of the inner side of the thin-walled cylinder liner, thereby improving the processing qualification rate.

[0012] This utility model incorporates a series of structures that facilitate the simultaneous and precise multi-directional, uniform, synchronous clamping of multiple extrusion rods on the outer side of a thin-walled cylinder liner, achieving safe and stable fixation. This avoids insufficient clamping force leading to loose clamping or excessive clamping force causing damage. Furthermore, by applying clamping force at multiple points, it can compress and round the cylinder liner when it bulges outward, improving clamping safety and processing efficiency. Additionally, during multi-point clamping, a large-area multi-point support mechanism is integrally formed on the outer side of the thin-walled cylinder liner, effectively reducing the outward bulging deformation caused by processing pressure during honing of the inner side and improving the processing qualification rate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the honing and recirculation tooling for machining thin-walled cylinder liners proposed in this utility model. Figure 2 This is a top view schematic diagram of a honing and recirculation tooling for machining thin-walled cylinder liners proposed in this utility model. Figure 3 This is a schematic diagram of the main cross-sectional structure of a honing and recirculation tool for machining thin-walled cylinder liners proposed in this utility model.

[0014] In the diagram: 1. Circular support sleeve; 101. Circular baffle box; 102. Annular sealing plate; 103. L-shaped fixed seat; 2. PLC controller; 201. Drive motor; 3. Moving rod; 301. Moving seat; 302. Screw; 303. Second bevel gear; 304. First bevel gear; 305. Pressure sensor; 4. Extrusion rod; 401. Anti-slip pad; 402. Horizontal guide tube; 403. Horizontal guide rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 3 As shown in the figure, this embodiment proposes a honing and rounding tooling for machining thin-walled cylinder liners, comprising: The round support sleeve 1 has a round baffle box 101 with an open top fixed on its outer side. An annular sealing plate 102 is glued and fixed to the top of the round baffle box 101. Four L-shaped fixing seats 103 are fixedly connected to the bottom of the round baffle box 101 in an annular shape at equal intervals. PLC controller 2 is fixedly installed on the left side of the circular baffle box 101; The drive motor 201 is fixedly installed on the left side of the circular baffle box 101 and is electrically connected to the PLC controller 2; The extrusion rods 4 are arranged in multiple sets in a ring at equal intervals within the circular support sleeve 1; The pressure-measuring threaded transverse guide drive assembly consists of multiple sets, which are installed in a ring at equal intervals inside the circular support sleeve 1 and are electrically connected to the PLC controller 2. The opposing sides of the multiple extrusion rods 4 are respectively fixedly connected to the corresponding pressure-measuring threaded transverse guide drive assembly. The linkage rotary drive assembly is rotatably installed on the outside of the circular support sleeve 1 and located inside the circular baffle box 101, and is fixedly connected to the output shaft end of the drive motor 201. The linkage rotary drive assembly is used to drive multiple pressure-measuring threaded transverse guide drive assemblies to rotate synchronously when the drive motor 201 starts. The two opposite pressure-measuring threaded transverse guide drive assemblies rotate in opposite directions. The multiple pressure-measuring threaded transverse guide drive assemblies are used to drive multiple extrusion rods 4 to move synchronously and close to each other or to move back and repel each other when rotating. When they are close to each other and clamped, the extrusion pressure is detected. In conjunction with the PLC controller 2, when the extrusion pressure reaches the preset value, the drive motor 201 is automatically shut down. This realizes the multi-directional uniform synchronous pressure control and clamping work of driving multiple extrusion rods 4 to move close to each other and clamping the outer side of the thin-walled cylinder liner in a multi-directional uniform synchronous manner. The multi-directional uniform synchronous pressure control and clamping work can achieve safe and stable fixation of the cylinder liner, and can also compress and round it when the outer side is deformed outward. In this embodiment, anti-slip pads 401 are glued and fixed to one side of each of the multiple extrusion rods 4. The anti-slip pads 401 enhance the anti-slip performance during clamping. The number of extrusion rods 4 is eight to twelve.

[0017] Furthermore, such as Figure 3As shown, the linkage rotary drive assembly includes a first bevel gear 304 and a plurality of second bevel gears 303. The first bevel gear 304 is rotatably sleeved on the circular support sleeve 1 and located inside the circular baffle box 101. The plurality of second bevel gears 303 are meshed in a ring at equal intervals on the outside of the first bevel gear 304. Two opposite second bevel gears 303 are symmetrically arranged. The left side of the second bevel gear 303 located on the far left is fixedly connected to the end of the output shaft of the drive motor 201. In this embodiment, a through hole is provided at the top of the first bevel gear 304, and a first bearing is fixedly sleeved in the through hole. The inner ring of the first bearing is fixedly sleeved with the outer side of the circular support sleeve 1, so as to achieve the effect of rotating and installing the first bevel gear 304. In this embodiment, the first bevel gear 304 and a plurality of second bevel gears 303 cooperate to drive the left second bevel gear 303 to rotate using the drive motor 201. The second bevel gear 303 drives the first bevel gear 304 meshing with it to rotate. The first bevel gear 304 drives the other plurality of second bevel gears 303 to rotate. Since the two opposite second bevel gears 303 are symmetrically arranged, the two opposite first bevel gears 304 rotate in opposite directions.

[0018] Furthermore, such as Figure 2 and 3 As shown, the pressure-measuring threaded transverse guide drive assembly includes a movable base 301, a screw 302, a movable rod 3, two transverse guide tubes 402, two transverse guide rods 403, and a pressure sensor 305. The opposing sides of the multiple extrusion rods 4 are respectively fixedly connected to the corresponding two transverse guide tubes 402. The movable rod 3 is slidably sleeved on the corresponding two transverse guide tubes 402 and fixedly installed with the corresponding movable base 301. The pressure sensor 305 is fixedly connected between the corresponding movable rod 3 and the extrusion rod 4. The transverse guide rod 403 is slidably sleeved in the corresponding transverse guide tube 402. The end of the transverse guide rod 403 is fixedly connected to the inner side of the circular support sleeve 1. The multiple screws 302 are rotatably embedded in the inner side of the circular support sleeve 1 in an annular shape with equal spacing. The opposing ends of the multiple screws 302 all extend into the circular baffle box 101 and are respectively fixedly connected to the corresponding second bevel gear 303. The multiple pressure sensors 305 are all electrically connected to the PLC controller 2. The movable base 301 is threadedly sleeved on the screw 302. In this embodiment, the movable seat 301 has a threaded hole on the side away from the corresponding movable rod 3. The threaded hole is threadedly connected to the corresponding screw 302. The threaded connection between the screw 302 and the threaded hole facilitates the lateral displacement of the corresponding movable seat 301 when the screw 302 rotates. The movable rod 3 has two transverse guide holes on one side, which are slidably fitted to the outer side of the corresponding transverse guide tube 402, thus guiding the lateral sliding of the movable rod 3. The bottom inner wall of the transverse guide tube 402 has a limit hole. The bottom of the transverse guide rod 403 is fixedly connected to a limit block that is slidably connected to the corresponding limit hole, thus limiting and preventing the transverse guide tube 402 from detaching. The inner side of the circular support sleeve 1 has multiple circular through holes at equal intervals in an annular shape. A second bearing is fixedly fitted inside the circular through holes. The inner ring of the second bearing is fixedly connected to the outer side of the corresponding screw 302, thus enabling the screw 302 to be rotated and installed. In this embodiment, the movable seat 301, screw 302, movable rod 3, two horizontal guide tubes 402, two horizontal guide rods 403, and pressure sensor 305 work together. The PLC controller 2 pre-sets the pressure value for closing the drive motor 201 according to different thin-walled cylinder liner clamping requirements. When the multiple second bevel gears 303 rotate, they drive the multiple screws 302 to rotate synchronously. Since the two opposite second bevel gears 303 rotate in opposite directions, the two opposite screws 302 rotate in opposite directions. At this time, the rotation of the multiple screws 302 drives the multiple movable rods 302 to rotate synchronously. The moving seats 301 move in close proximity or expand and repel each other, driving multiple moving rods 3 to move in close proximity or expand and repel each other. These moving rods 3, via multiple pressure sensors 305, drive multiple extrusion rods 4 to move in close proximity or expand and repel each other. The close proximity contraction of the extrusion rods 4 clamps the outer side of the thin-walled cylinder liner uniformly and synchronously in multiple directions. In the clamped state, the extrusion rods 4 are restricted from further displacement by the thin-walled cylinder liner. At this time, the multiple moving rods 3, continuing their close proximity contraction, extrude pressure on their corresponding pressure sensors 305. The extrusion force applied by the corresponding moving rod 3 is detected and converted into a standard electrical signal, which is then transmitted to the PLC controller 2. The PLC controller 2 converts the received standard electrical signal into an actual pressure value through analog-to-digital conversion. When the preset pressure value is reached, the PLC controller 2 controls the drive motor 201 to shut down. This achieves the effect of driving multiple extrusion rods 4 to move in close proximity, uniformly and synchronously controlling the pressure and clamping the outer side of the thin-walled cylinder liner in multiple directions. This multi-directional uniform and synchronous pressure clamping not only ensures safe and stable fixation but also allows for the compression and rounding of the cylinder liner when it bulges outward due to pressure control. Furthermore, by equipping multiple extrusion rods 4 with pressure sensors 305, the multiple directions are identical, ensuring that the degree of extrusion is the same in multiple directions. Even if one pressure sensor 305 fails, other pressure sensors 305 will continue to detect the extrusion force. When any pressure value received reaches the preset value, the PLC controller 2 can promptly control the drive motor 201 to shut down. This multi-point pressure measurement avoids the impact of a single pressure sensor 305 failure on the overall pressure clamping operation, ensuring the stability of the pressure clamping and compression recovery.

[0019] It should be noted that the PLC controller 2 preferably adopts the Siemens S7-200SMART programmable controller with integrated analog input module, which can receive the standard electrical signal output by the pressure sensor 305 and convert it into the actual pressure value through the integrated analog-to-digital conversion function; the pressure sensor 305 is preferably a plate (pressure) weighing sensor of the Transcell BSS series. Furthermore, the electrical connection between the drive motor 201 and the PLC controller 2 is achieved through wires and a servo driver. The preferred servo driver is a Siemens V90 servo driver, a commonly used driver for controlling motors and electric actuators in conjunction with Siemens programmable controllers, meeting the programmable controller's direct control requirements for the drive motor 201. The pressure sensor 305 is electrically connected to the PLC controller 2 via a flexible wire. Given that the pressure sensor 305 is a moving component, the connecting flexible wire is designed with a certain reserved bending length to meet its displacement requirements. This method of establishing an electrical connection controlled by the PLC controller 2 via direct wire connection is a mature and well-known technology for conventional wired control of the controller, and will not be elaborated further here. Regarding power supply, given that the thin-walled cylinder liner processing site is a machining site with sufficient power supply measures and conditions, all electrical components of this device are connected to the local mains power supply. They are connected to the power input interfaces of each device through conventional power distribution devices such as circuit breakers, contactors, and power modules (not marked in the figure) to form a complete power supply circuit. This power supply scheme is a conventional power distribution method for industrial equipment and is a mature and well-known technical means, so it will not be described in detail here.

[0020] It should be further noted that the round support sleeve 1, the first bevel gear 304, the second bevel gear 303, the moving seat 301, the screw 302, the moving rod 3, the transverse guide tube 402, the transverse guide rod 403, and the extrusion rod 4 are all preferably made of stainless steel. The screw 302 has a high wear-resistant load-bearing specification with a thread clearance of 0.5-1mm on the outer side. The stainless steel material has the advantages of high hardness, high wear resistance, and good maintenance-free effect, which ensures long-term connection and drive support stability. It should be further explained that at least eight extrusion rods 4 should be used. The number of extrusion rods 4 can be appropriately increased according to the different diameter specifications of thin-walled cylinder liners. That is, the more extrusion rods 4 there are within the installation space, the better. By using multiple extrusion rods 4 to simultaneously shrink and extrude in multiple directions, an effective extrusion and rounding effect can be formed by multiple full-circle and multi-point extrusion.

[0021] The method of use in this embodiment is as follows: When using the honing and rounding tool for processing thin-walled cylinder liners, the pressure value for controlling the drive motor 201 to close is preset using the PLC controller 2 according to different clamping requirements of thin-walled cylinder liners. The thin-walled cylinder liner is placed between multiple extrusion rods 4. The operator operates the PLC controller 2 to start the drive motor 201 in the forward direction. The drive motor 201 drives the second bevel gear 303 on the left to rotate. The second bevel gear 303 drives the first bevel gear 304 meshing with it to rotate. The first bevel gear 304 drives multiple other second bevel gears 303 to rotate. Since the two opposite second bevel gears 303 are symmetrically arranged, the two opposite first bevel gears 304 rotate in opposite directions. When the multiple second bevel gears 303 rotate, they drive multiple screws 302 to rotate synchronously. Since the two opposite second bevel gears 303 rotate in opposite directions, the two opposite screws 302 rotate in opposite directions. At this time, when the multiple screws 302 rotate, they drive multiple moving seats 301 to retract and move in close proximity. The multiple moving seats 301 drive multiple moving rods 3 to retract in close proximity. Multiple moving rods 3, driven by multiple pressure sensors 305, move in close proximity, causing multiple extrusion rods 4 to retract and move in close proximity. The multiple extrusion rods 4, driven by multiple anti-slip pads 401, retract and move in close proximity, clamping the outer side of the thin-walled cylinder liner. In the clamping state, the extrusion rods 4 are restricted from displacement by the thin-walled cylinder liner. At this time, the multiple moving rods 3, which continue to retract and move in close proximity, respectively extrude on the corresponding pressure sensors 305. The pressure sensors 305 detect the extrusion force applied by the corresponding moving rods 3, convert it into a standard electrical signal, and transmit it to the PLC controller 2. The PLC controller 2 converts the received standard electrical signal into an actual pressure value through analog-to-digital conversion. When the preset pressure value is reached, the PLC controller 2 controls the drive motor 201 to shut down. This achieves the effect of driving multiple extrusion rods 4 to retract and move in close proximity, thereby achieving multi-directional uniform synchronous precise pressure control and clamping on the outer side of the thin-walled cylinder liner. The multi-directional uniform synchronous pressure control and clamping achieves safe and stable fixation, avoiding the phenomenon of insufficient clamping force leading to loose clamping or excessive clamping force leading to clamping damage. It can also compress and round the outer side when it bulges outward by applying clamping force at multiple points, improving clamping safety and processing effect. Furthermore, by equipping multiple extrusion rods 4 with pressure sensors 305, the multiple directions are identical, ensuring that the extrusion degree is the same in all directions. Even if one pressure sensor 305 fails, other pressure sensors 305 will continue to detect the extrusion pressure. When any pressure value received reaches a preset value, the PLC controller 2 can promptly control the drive motor 201 to shut down. Multi-point pressure measurement avoids the impact of a single pressure sensor 305 failure on the overall pressure control and clamping operation, ensuring the stability of pressure control, clamping, and extrusion recovery. In addition, the multi-directional clamping of multiple extrusion rods 4 on the outside of the thin-walled cylinder liner also forms a multi-point large-area support mechanism on the outside, effectively reducing the phenomenon of outward deformation caused by processing pressure during the honing of the inner side of the thin-walled cylinder liner, thereby improving the processing qualification rate. When releasing the clamping, the drive motor 201 is started in reverse, which is completely opposite to the forward start of the drive motor 201. At this time, the multiple extrusion rods 4 change to outward expansion, releasing the safety clamping support state, and the thin-walled cylinder liner can be removed for replacement.

[0022] 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 honing and recirculation tooling for machining thin-walled cylinder liners, comprising a circular support sleeve (1), characterized in that: include: The round support sleeve (1) has a round baffle box (101) with an open top fixed on its outer side. The top of the round baffle box (101) is glued and fixed with an annular sealing plate (102). The bottom of the round baffle box (101) is fixedly connected with four L-shaped fixing seats (103) in an annular shape at equal intervals. The PLC controller (2) is fixedly installed on the left side of the round baffle box (101); The drive motor (201) is fixedly installed on the left side of the round baffle box (101) and electrically connected to the PLC controller (2); The extrusion rod (4) is arranged in multiple groups and in a ring with equal spacing inside the circular support sleeve (1); The pressure-measuring threaded transverse guide drive assembly consists of multiple sets, which are installed in a ring at equal intervals inside the circular support sleeve (1) and electrically connected to the PLC controller (2). The opposing sides of the multiple extrusion rods (4) are respectively fixedly connected to the corresponding pressure-measuring threaded transverse guide drive assembly. The linkage rotary drive assembly is rotatably mounted on the outside of the round support sleeve (1) and located inside the round baffle box (101), and is fixedly connected to the end of the output shaft of the drive motor (201).

2. The honing and rounding tooling for machining thin-walled cylinder liners according to claim 1, characterized in that: The linkage rotary drive assembly includes a first bevel gear (304) and a plurality of second bevel gears (303). The first bevel gear (304) is rotatably sleeved on the circular support sleeve (1) and located inside the circular baffle box (101). The plurality of second bevel gears (303) are meshed in a ring at equal intervals on the outside of the first bevel gear (304). Two opposite second bevel gears (303) are symmetrically arranged. The left side of the leftmost second bevel gear (303) is fixedly connected to the end of the output shaft of the drive motor (201).

3. The honing and rounding tooling for machining thin-walled cylinder liners according to claim 2, characterized in that: The pressure-measuring threaded transverse guide drive assembly includes a movable base (301), a screw (302), a movable rod (3), two transverse guide tubes (402), two transverse guide rods (403), and a pressure sensor (305). The opposing sides of the plurality of extrusion rods (4) are respectively fixedly connected to the corresponding two transverse guide tubes (402). The movable rod (3) is slidably sleeved on the corresponding two transverse guide tubes (402) and fixedly installed with the corresponding movable base (301). The pressure sensor (305) is fixedly connected to the corresponding movable rod (3) and extrusion rod (4). Between them, the horizontal guide rod (403) is slidably sleeved in the corresponding horizontal guide tube (402), the end of the horizontal guide rod (403) is fixedly connected to the inner side of the circular support sleeve (1), multiple screws (302) are rotatably embedded in the inner side of the circular support sleeve (1) in a ring at equal intervals, the opposing ends of multiple screws (302) all extend into the circular baffle box (101) and are fixedly connected to the corresponding second bevel gear (303) respectively, multiple pressure sensors (305) are electrically connected to the PLC controller (2), and the moving seat (301) is threadedly sleeved on the screw (302).

4. The honing and rounding tooling for machining thin-walled cylinder liners according to claim 1, characterized in that: Anti-slip pads (401) are glued and fixed to one side of each of the multiple extrusion rods (4).

5. A honing and rounding tooling for machining thin-walled cylinder liners according to claim 3, characterized in that: The movable seat (301) has a threaded hole on the side away from the corresponding movable rod (3), and the threaded hole is threadedly connected to the corresponding screw (302).

6. A honing and rounding tooling for machining thin-walled cylinder liners according to claim 2, characterized in that: The top of the first bevel gear (304) has a through hole, and a first bearing is fixedly fitted inside the through hole. The inner ring of the first bearing is fixedly fitted to the outer side of the round support sleeve (1).

7. A honing and recirculation tooling for machining thin-walled cylinder liners according to claim 1, characterized in that: The number of the extrusion rods (4) is eight to twelve.

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