Cylinder processing apparatus and processing method thereof

Abstract

The application is suitable for the technical field of cylinder processing, and provides a cylinder processing equipment and a processing method thereof, which comprises a machine cover, a main body assembly, a cutting assembly and a head section centering assembly. The main body assembly is arranged in the interior of the machine cover and serves to position a cylinder. The cutting assembly is arranged on one side of the main body assembly and serves to process the outer circle of the cylinder. The head section centering assembly solves the problems that the three-jaw chuck clamps the cylinder blank with an oxidation layer, the clamping jaws are in poor contact, the force is uneven, the workpiece rotates eccentrically, the coaxiality is out of tolerance, the processing precision is reduced, the traditional manual correction method is low in efficiency and easy to introduce human errors. The head section force measuring module provides floating support for the clamping seat through a floating spring rod, realizes self-adaptive fitting with the uneven surface of the cylinder, and transmits the clamping reaction force to the force sensor through the spring rod. The three sets of clamping force difference values are used to identify the cylinder center deviation and the axis inclination deviation in real time. The double-acting cylinder drives the clamping seat to accurately supplement the pressure feeding to complete the axis correction.

Description

Technical Field

[0001] This invention relates to the field of cylinder barrel machining technology, and more specifically, to a cylinder barrel machining equipment and a machining method thereof. Background Technology

[0002] As the core load-bearing component of hydraulic cylinders, pneumatic cylinders, and other actuators, the machining accuracy of the cylinder directly determines the operational stability and service life of the hydraulic system. In actual production, the cylinder is usually made of high-quality alloy steel or carbon steel as raw material, and is formed through multiple processes such as forging, rough turning, semi-finish turning, finish turning, boring, and honing. The core objective is to ensure the roundness, cylindricity, surface roughness, and perpendicularity to the end face of the inner wall of the cylinder, while ensuring that the cylinder mounting reference is coaxial with the center height of the machine tool spindle, so as to provide a reliable foundation for subsequent piston sealing and pressure bearing.

[0003] Current cylinder machining uses a three-jaw self-centering chuck for clamping. Workpiece centering is achieved through the radial synchronous movement of the jaws. During clamping, the clamping force is transmitted through the chuck drive mechanism, fixing the cylinder to the machine tool spindle end and rotating synchronously with the spindle to complete the turning operation. Some processes involve using a tailstock center to hold the other end of the cylinder to enhance rigidity and reduce cutting vibration. The core logic is to constrain the workpiece's degrees of freedom through synchronous clamping of the three jaws, and rely on the chuck's self-centering function to ensure that the workpiece's rotation center coincides with the spindle center.

[0004] However, when the three-jaw chuck is used to clamp the cylinder blank, due to the oxidation on the cylinder surface, only the protruding part at the front end of the jaw can effectively contact the workpiece. The force distribution of the three jaws is extremely uneven, which can easily lead to rotational eccentricity after the cylinder is clamped, that is, the center of the workpiece is offset from the center of the machine tool spindle. Traditional correction methods rely on manual repeated measurement with dial gauges, adjustment of jaw position or modification of workpiece coordinates. This not only has extremely low production efficiency, but also easily introduces human error, causing the cylinder coaxiality to exceed the standard and reducing machining accuracy. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a cylinder processing equipment and processing method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cylinder barrel processing equipment, including a machine cover.

[0007] The main component is located inside the engine cover and serves as the pre-positioning of the cylinder barrel.

[0008] A cutting assembly that slides on one side of the main body assembly and is used for machining the outer diameter of the cylinder.

[0009] The head section centering assembly is connected to the main body assembly and is used to clamp the cylinder head section. The head section centering assembly includes a head three-jaw chuck connected to the main body assembly and clamping blocks installed on the three jaws of the head three-jaw chuck. The side wall of the clamping blocks is equipped with a head section force measuring module. The top and bottom of the head section force measuring module are respectively provided with an inner clamping seat and an outer clamping seat.

[0010] The head section force measuring module includes two sets of floating spring rods and two sets of head section force measuring sensors. One set of floating spring rods and one set of head section force measuring sensors constitute one set. The two sets of floating spring rods and two sets of head section force measuring sensors are respectively installed on the top and bottom of the clamping block.

[0011] The mid-section support assembly includes three sets of mid-section force-measuring spring rods, which are equidistantly arranged around the mid-section of the cylinder outer wall. The ends of the mid-section force-measuring spring rods are rotatably fitted with guide wheels that fit against the cylinder outer wall.

[0012] The tail section force-measuring three-jaw chuck is connected to the main body assembly and is used to clamp the tail section of the cylinder. Each of the three jaws of the tail section force-measuring three-jaw chuck has a built-in tail section pressure sensor.

[0013] The invention is further configured such that: the main component includes a base installed inside the machine housing and a drive mechanism installed on one side of the top of the base; the head three-jaw chuck is connected to the output end of the drive mechanism; a movable guide rail is installed on the top of the base; a sliding drive platform slides on the top of the movable guide rail; the tail force-measuring three-jaw chuck is installed on the output end of the sliding drive platform; a side guide rail is installed on one side of the movable guide rail; the cutting component slides on the side guide rail; and the middle support component is installed on the top of the movable guide rail.

[0014] The invention is further configured such that: a movable stage slides on the side guide rail, an electric slider slides on the top of the movable stage, a main blade is mounted on the top of the electric slider, and the main blade extends to the outer wall of the cylinder.

[0015] The invention is further configured such that a predictive blade and a load pressure sensor are also mounted on the top of the electric slider, and the load pressure sensor is located between the predictive blade and the electric slider.

[0016] The present invention is further configured such that: the head section force measuring module includes a box body installed on one side of the clamping block, a slide plate is slidably connected inside the box body, the end and bottom of the slide plate extend into the interior of the inner clamping seat and the outer clamping seat respectively, and a double-acting cylinder is also installed inside the box body, the two output ends of the double-acting cylinder are respectively connected to the side wall of the slide plate.

[0017] The invention is further configured such that: the side wall of the box body is provided with an inner clamping anti-reverse groove and an outer clamping anti-reverse groove; the side wall of the slide plate is rotatably connected with an inner clamping swing rod and an outer clamping swing rod; the inner clamping swing rod corresponds to the inner clamping anti-reverse groove; the outer clamping swing rod is provided with an outer clamping anti-reverse groove; two top spring rods are symmetrically installed on the side wall of the slide plate; the two top spring rods correspond to the inner clamping swing rod and the outer clamping swing rod respectively; the outer side wall of the inner clamping swing rod and the outer clamping swing rod is provided with a notch that fits with the corresponding top spring rod.

[0018] The present invention is further configured such that: an inner clamping locking rod is installed through the bottom of the inner clamping swing rod, and an outer clamping locking rod is installed through the bottom of the outer clamping swing rod; the fully retracted state of the inner clamping locking rod and the outer clamping locking rod is less than the inner cavity thickness of the box body.

[0019] The present invention is further configured such that: two guide grooves are symmetrically formed on the inner sidewall of the box body, and the two guide grooves correspond to the inner clamping rod and the outer clamping rod respectively, and one end of the inner clamping rod and the outer clamping rod can be inserted into the interior of the corresponding guide groove.

[0020] The invention is further configured such that: the mid-section support assembly includes a support seat disposed above the main body assembly; a pressure cap is hinged to the top of the support seat; the support seat and the pressure cap form a limiting ring; three sets of mid-section force-measuring spring rods are equidistantly mounted around the outside of the limiting ring formed by the support seat and the pressure cap; the mid-section force-measuring spring rods extend into the limiting ring and are rotatably mounted with guide wheels; a support platform is disposed on the top of the base; the support seat is mounted on the top of the support platform; a telescopic cylinder is hinged to one side of the top of the support platform; the piston rod end of the telescopic cylinder is hinged to one end of the pressure cap.

[0021] A cylinder barrel machining method, using a cylinder barrel machining apparatus as described above, includes the following steps:

[0022] S1. The cylinder is transferred to the main assembly, and the cylinder head is positioned by the head section centering assembly. The cylinder head is clamped on the outer wall by the head three-jaw chuck. At this time, the cylinder is assisted in the hoisting by the external hoisting equipment.

[0023] S2. The cylinder head is floatingly clamped by the cooperation of the floating spring rod and the outer clamping seat to adapt to the state of the cylinder after oxidation. The corresponding head section force sensor detects the clamping force to generate head clamping data and sets the floating data threshold.

[0024] S3. When the three sets of head section force measuring modules move towards the outer wall of the cylinder at the same time, if the three head clamping data fluctuate within the floating data threshold range, it is determined that the cylinder is in a horizontal state. Then, the tail section force measuring three-jaw chuck clamps the inner wall of the cylinder tail. At this time, the tail section force measuring three-jaw chuck generates three tail clamping data to judge and verify the state of the cylinder again.

[0025] S4. If the three clamping data fluctuate and exceed the floating data threshold, it is determined that the cylinder has a horizontal deviation and the direction of the deviation. At this time, the outer clamping seat corresponding to the deviation direction is moved to provide pressure support for the cylinder, supplement the pressure value of the cylinder deviation, and then adjust the deviation direction of the cylinder. Subsequently, the tail-end force-measuring three-jaw chuck clamps the inner wall of the tail end of the cylinder. At this time, the tail-end force-measuring three-jaw chuck generates three tail clamping data to determine whether the cylinder has returned to its original position.

[0026] S5. Then, the cylinder barrel is machined with a mid-section support point on the outer wall by the cutting assembly. The mid-section support assembly supports the mid-section of the cylinder barrel. Then, the tail section force-measuring three-jaw chuck is controlled to move away from the cylinder barrel. The cutting assembly performs outer ring machining on the cylinder barrel from the mid-section to the tail section again. The inner wall of the cylinder barrel tail section is machined in a small range by the external cutting tool. At this time, the inner support point of the cylinder barrel tail section and the support point of the cylinder barrel mid-section are concentric. Then, the tail section force-measuring three-jaw chuck clamps the cylinder barrel again, while the head section force-measuring module moves away from the cylinder barrel. The cutting assembly performs outer ring machining on the cylinder barrel from the mid-section to the head section again. The cutting assembly detects the load on the outer wall of the cylinder barrel in real time during the cutting process and controls the cylinder barrel speed in linkage to achieve the purpose of one-time machining.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] (1) By setting the head section force measuring module, the floating spring rod provides floating support for the clamp to achieve adaptive surface contact with the uneven surface of the cylinder. The clamping reaction force is transmitted through the floating spring rod to the force sensor to collect three sets of clamping force differences. The cylinder center offset and axis tilt deviation are identified in real time. Then, the double-acting cylinder drives the slide plate to drive the corresponding clamp to accurately compensate for pressure and push the cylinder axis back to the center. At the same time, the mechanical locking and double-acting cylinder support form a double pressure protection and anti-reverse, avoiding the inefficiency of manual repeated dial adjustment and the effect of human error.

[0029] (2) By setting a tail-end force-measuring three-jaw chuck with a built-in tail-end pressure sensor in the gripper, a closed loop of clamping force detection is formed at both ends of the cylinder with the head-end force-measuring module. The matching degree of the three sets of clamping force data under the external clamping condition of the head section and the three sets of clamping force data under the internal clamping condition of the tail section is compared and analyzed. This achieves a secondary cross-verification of the coaxiality of the cylinder axis and the horizontal clamping state throughout the entire length of the cylinder, thus achieving the effect of double verification of the coincidence of the cylinder and the machine tool spindle center, and further eliminating the hidden danger of clamping deviation.

[0030] (3) By setting up a predictive tool and a load pressure sensor, the predictive tool is used to pre-cut the outer wall of the cylinder before the main tool is formally processed. The load pressure sensor collects the cutting load resistance during the pre-cutting process in real time. The load fluctuation data is linked with the clamping force data at the beginning and end to identify the concave and convex shape of the outer wall of the cylinder. This achieves the effect of removing the surface protrusion in advance to avoid impact damage to the main tool and optimizing the cylinder rotation speed for the concave area to ensure cutting stability.

[0031] (4) By setting up a middle section force-measuring spring rod with three sets of circumferentially equidistant surrounding and a middle section support assembly with matching guide wheels, after machining a support reference surface coaxial with the spindle rotation center in the middle section of the cylinder, the middle section support assembly provides stable circumferential rotation support for the middle section of the cylinder. At the same time, the pressure monitoring data of the three sets of middle section force-measuring spring rods is used to verify the horizontal state of the cylinder and identify tilt deviation in real time, achieving the effect of one-time blind-zone machining of the entire outer circle of the cylinder without secondary clamping. This solves the problem of forming a machining blind zone at the end of the cylinder when clamped by a conventional external chuck, and simultaneously ensures the coaxiality of the cylinder machining. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a cylinder processing equipment according to the present invention.

[0033] Figure 2 This is a schematic diagram of the internal structure of the casing in this invention.

[0034] Figure 3 This is a schematic diagram of the head section centering component structure in this invention.

[0035] Figure 4 This is a schematic diagram of the front view structure of the force measuring module in the head section of the present invention.

[0036] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure.

[0037] Figure 6 for Figure 5 A partial structural diagram.

[0038] Figure 7 for Figure 6 A schematic diagram of the partial front view structure.

[0039] Figure 8 for Figure 7 A rear-view diagram of the exploded structure.

[0040] Figure 9 This is a schematic diagram of the combined structure of the box body, inner clamping swing rod, and outer clamping swing rod in this invention.

[0041] Figure 10 for Figure 9 Another perspective structural diagram.

[0042] Figure 11 This is a schematic diagram of the cutting component structure in this invention.

[0043] Figure 12 This is a schematic diagram of the middle section support component structure of the present invention.

[0044] Explanation of reference numerals in the attached diagram: 1. Machine cover;

[0045] 2. Main body components; 21. Base; 22. Moving guide rail; 23. Sliding drive stage; 24. Drive mechanism; 25. Side guide rail;

[0046] 3. Cutting assembly; 31. Moving stage; 32. Electric slide block; 33. Predictive tool; 34. Main tool; 35. Load pressure sensor;

[0047] 4. Head section centering assembly; 41. Head three-jaw chuck; 42. Clamping block;

[0048] 43. Head section force measuring module; 431. Box body; 432. Inner clamp anti-reverse groove; 433. Inner clamp swing rod; 434. Outer clamp anti-reverse groove; 435. Outer clamp swing rod; 436. Top spring rod; 437. Slide plate; 438. Inner clamp locking rod; 439. Outer clamp locking rod; 4301. Double-acting cylinder; 4302. Guide groove; 4303. Head section force measuring sensor; 4304. Floating spring rod;

[0049] 44. Inner clamp; 45. Outer clamp;

[0050] 5. Mid-section support assembly; 51. Support platform; 52. Support seat; 53. Pressure cap; 54. Mid-section force-measuring spring rod; 55. Guide wheel; 56. Telescopic cylinder;

[0051] 6. Tail-end force-measuring three-jaw chuck. Detailed Implementation

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0053] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0054] Please see Figures 1-12 The present invention provides the following technical solutions:

[0055] Example 1, see Figure 1A cylinder processing device includes a machine cover 1, inside which a main body assembly 2 is installed. The machine cover 1 serves as the main body for pre-positioning the cylinder. The main body assembly 2 includes a base 21 installed inside the machine cover 1 and a drive mechanism 24 installed on one side of the top of the base 21. A movable guide rail 22 is installed on the top of the base 21, and a sliding drive table 23 slides on the top of the movable guide rail 22. A side guide rail 25 is installed on one side of the movable guide rail 22. The drive mechanism 24 has a built-in rotary motor and a sliding mechanism. The rotary motor is installed on the sliding table of the sliding mechanism.

[0056] A head section centering assembly 4 is connected to the output end of the rotary motor of the drive mechanism 24. The head section centering assembly 4 is used to clamp the head section of the cylinder. That is, when the cylinder is placed, it is hoisted by an external hoisting device and transferred to the top of the moving guide rail 22. Then, the sliding mechanism in the drive mechanism 24 drives the rotary motor to move, which in turn drives the head section centering assembly 4 to move. The head section centering assembly 4 clamps the head section of the cylinder internally or externally as needed.

[0057] The specific structure of the head section centering component 4 is as follows:

[0058] The head section centering assembly 4 includes a head three-jaw chuck 41 connected to the output end of the drive mechanism 24 and clamping blocks 42 mounted on the three jaws of the head three-jaw chuck 41. The head section of the cylinder is clamped by the clamping blocks 42 on the three jaws of the head three-jaw chuck 41. The three clamping blocks 42 move closer to each other, thereby completing the clamping of the cylinder head section.

[0059] The output end of the sliding drive stage 23 is equipped with a tail section force-measuring three-jaw chuck 6, which is used to internally clamp the tail section of the cylinder. By cooperating with the head section centering assembly 4, the cylinder is clamped and positioned.

[0060] A cutting assembly 3 slides on the side guide rail 25. The cutting assembly 3 is used for machining the outer diameter of the cylinder. The specific structure of the cutting assembly 3 is as follows:

[0061] The cutting assembly 3 includes a movable stage 31 that slides on the side guide rail 25. An electric slider 32 slides on the top of the movable stage 31. A main cutter 34 is mounted on the top of the electric slider 32. The main cutter 34 extends to the outer wall of the cylinder. The movable stage 31 slides on the side guide rail 25, thereby driving the electric slider 32 and the main cutter 34 to move. The electric slider 32 is used to drive the main cutter 34 to move closer to the cylinder. The main cutter 34 is used to process the outer wall of the cylinder.

[0062] Specifically, after the cylinder is clamped and positioned, the head three-jaw chuck 41 is driven to rotate by the drive mechanism 24, and at the same time the sliding drive table 23 drives the tail force measuring three-jaw chuck 6 to rotate, and the cylinder begins to rotate. At this time, the main cutter 34 moves closer to the cylinder and then processes the outer wall of the cylinder. Subsequently, the main cutter 34 slides along the outer wall of the cylinder and then processes the outer wall of the cylinder.

[0063] In Example 2, when the head three-jaw chuck 41 is clamping the cylinder blank, due to the oxidation on the cylinder surface, only the protruding part at the front end of the clamping block 42 can effectively contact the workpiece. The force distribution of the three clamping blocks 42 is extremely uneven, which easily leads to rotational eccentricity after the cylinder is clamped, that is, the center of the workpiece is offset from the center of the machine tool spindle. In other words, the existing conventional three-jaw chuck only has the function of single internal clamping or single external clamping, and the equipment has extremely poor versatility. Cylinders with different process requirements must frequently change the jaws or chuck, and the clamping adaptability is insufficient. The single mode cannot take into account the differentiated clamping requirements of the blank and the finished surface. The inner hole of the external clamping chuck is prone to slippage, and the outer circle of the internal clamping chuck is prone to damage. It is impossible to achieve closed-loop clamping force and centering adjustment in both modes.

[0064] To ensure the cylinder's center is aligned, traditional correction methods rely on manual repeated measurements using dial gauges, adjusting chuck positions, or modifying workpiece coordinates. This not only results in extremely low production efficiency but also easily introduces human error, causing the cylinder's coaxiality to exceed the standard and reducing machining accuracy.

[0065] Later, staff switched to contact probe scanning or non-contact visual inspection for center offset detection. However, contact probes require additional specialized hardware, necessitate machine shutdown and interruption of the processing flow during inspection, and can only detect static rotational eccentricity of the workpiece, failing to detect uneven force on individual jaws or dynamic slippage risks during clamping. Furthermore, the probes are susceptible to wear from metal filings and oil, leading to decreased accuracy. Non-contact visual inspection is significantly affected by workshop lighting, dust, and workpiece surface oxide scale. Both methods follow a passive logic of clamping first, then inspecting, and then adjusting. Once eccentricity is detected, the clamps must be loosened, the jaws adjusted, and clamped again, resulting in a cumbersome and inefficient process.

[0066] Therefore, a head section force measuring module 43 is installed on the side wall of the clamping block 42. The top and bottom of the head section force measuring module 43 are respectively provided with an inner clamping seat 44 and an outer clamping seat 45. When the clamping block 42 clamps the cylinder head section, the inner clamping seat 44 and the outer clamping seat 45 can be used to fit and conform to the cylinder. That is, when the cylinder head section is clamped externally, the outer clamping seat 45 on the clamping block 42 conforms to the outer wall of the cylinder. When the cylinder head section is clamped internally, the inner clamping seat 44 on the clamping block 42 conforms to the inner wall of the cylinder. When the outer clamping seat 45 or the inner clamping seat 44 positions the cylinder, the corresponding head section force measuring module 43 detects the clamping force and determines whether there is a tilting deviation in the cylinder.

[0067] The head section force measuring module 43 includes two sets of floating spring rods 4304 and two sets of head section force measuring sensors 4303. Each set of floating spring rods 4304 and head section force measuring sensors 4303 forms a group. The two sets of floating spring rods 4304 and the two sets of head section force measuring sensors 4303 are respectively installed on the top and bottom of the clamping block 42. A sensing unit of one set of floating spring rods 4304 and head section force measuring sensors 4303 is set at the top and bottom of the clamping block 42. The floating spring rods 4304 are inner clamps 4. 4. The outer clamp 45 provides floating support, allowing the inner clamp 44 and outer clamp 45 to adaptively float according to the unevenness of the cylinder surface, ensuring that the inner clamp 44 and outer clamp 45 are effectively in contact with the cylinder surface. At the same time, the reaction force of the cylinder on the inner clamp 44 or outer clamp 45 is transmitted to the head section force sensor 4303 through the floating spring rod 4304 to collect the real-time clamping force value of the corresponding clamping position. The two sets of sensing units respectively collect the force signal of the inner clamping condition or the outer clamping condition.

[0068] The head section force measuring module 43 includes a box 431 installed on one side of the clamping block 42. A slide plate 437 is slidably connected inside the box 431. The end and bottom of the slide plate 437 extend into the inner clamping seat 44 and the outer clamping seat 45, respectively. A double-acting cylinder 4301 is also installed inside the box 431. The two output ends of the double-acting cylinder 4301 are connected to the side wall of the slide plate 437, respectively.

[0069] The housing 431 serves as the mounting base for the head section force measuring module 43, providing installation space and protection for internal components. The slide plate 437, as a component for force transmission and displacement execution, engages with the inner clamp 44 and the outer clamp 45 at both ends, respectively. The double-acting cylinder 4301 can output linear driving force in both directions, causing the slide plate 437 to slide radially within the housing 431. This, in turn, causes the inner clamp 44 or the outer clamp 45 to undergo radial displacement, thereby achieving active pressure compensation adjustment for cylinder deviation.

[0070] The side wall of the box 431 is provided with an inner clamping anti-reverse groove 432 and an outer clamping anti-reverse groove 434. The side wall of the slide plate 437 is rotatably connected with an inner clamping swing rod 433 and an outer clamping swing rod 435. The inner clamping swing rod 433 corresponds to the inner clamping anti-reverse groove 432, and the outer clamping swing rod 435 corresponds to the outer clamping anti-reverse groove 434. Two top spring rods 436 are symmetrically installed on the side wall of the slide plate 437. The two top spring rods 436 correspond to the inner clamping swing rod 433 and the outer clamping swing rod 435 respectively. The outer side wall of the inner clamping swing rod 433 and the outer clamping swing rod 435 is provided with a notch that fits with the corresponding top spring rod 436.

[0071] The top spring rod 436 presses against the notch of the corresponding swing rod with pre-tension force, providing initial pre-tension force to the swing rod, so that the swing rod always has the tendency to swing in the direction of the corresponding anti-reverse groove. When the slide plate 437 drives the swing rod to move in the clamping direction, the swing rod slides along the inclined surface of the anti-reverse groove, and can smoothly complete the feeding action. After the slide plate 437 completes the pressure adjustment, if there is a reverse retraction tendency, the end of the swing rod will be stuck into the stepped surface of the anti-reverse groove, forming a reverse lock and preventing the slide plate 437 from retracting. The inner clamping swing rod 433 and the inner clamping anti-reverse groove 432 are locked in the inner clamping condition, and the outer clamping swing rod 435 and the outer clamping anti-reverse groove 434 are locked in the outer clamping condition. At the same time, with the support of the double-acting cylinder 4301, the pressure of the inner clamping seat 44 or the outer clamping seat 45 is further increased.

[0072] An inner clamping rod 438 is installed through the bottom of the inner clamping rod 433, and an outer clamping rod 439 is installed through the bottom of the outer clamping rod 435. The fully retracted state of the inner clamping rod 438 and the outer clamping rod 439 is less than the inner cavity thickness of the box body 431. Two guide grooves 4302 are symmetrically opened on the inner side wall of the box body 431. The two guide grooves 4302 correspond to the inner clamping rod 438 and the outer clamping rod 439 respectively. One end of the inner clamping rod 438 and the outer clamping rod 439 can be inserted into the corresponding guide groove 4302.

[0073] The inner clamping rod 438 and the outer clamping rod 439 serve as locking actuators for the inner clamping rocker arm 433 and the outer clamping rocker arm 435, respectively, swinging and moving synchronously with the rocker arm. When the outer clamping seat 45 is used to clamp the outer wall of the cylinder, the operator pulls the outer clamping rod 439 out of the corresponding guide groove 4302 and inserts it into the outer clamping anti-reverse groove 434, while retracting the inner clamping rod 438 from the inner clamping anti-reverse groove 432 and inserting it into the corresponding guide groove 4302. In this state, the outer clamping rod 439 can... The inner clamping rod 438 slides within the outer clamping anti-reverse groove 434 and can prevent retraction in the reverse direction, while the inner clamping locking rod 438 slides along the corresponding guide groove 4302 without contacting the inner clamping anti-reverse groove 432. Conversely, when the inner clamping seat 44 is used to clamp the outer wall of the cylinder, the outer clamping locking rod 439 retracts, and the inner clamping locking rod 438 extends and retracts and inserts into the inner clamping anti-reverse groove 432. In this state, the inner clamping locking rod 438 can slide within the inner clamping anti-reverse groove 432 and can prevent retraction in the reverse direction, further enhancing the locking and limiting effect.

[0074] The tail section force-measuring three-jaw chuck 6 has a built-in tail section pressure sensor on each of its three jaws. This sensor collects the clamping force values ​​of the three jaws at the tail end in real time, forming a closed loop of force detection at both ends with the head section force-measuring module 43 at the head end. By comparing the clamping force data at both ends, the coaxiality and horizontal status of the cylinder are further verified, achieving a dual verification of the cylinder positioning accuracy.

[0075] The top of the electric slider 32 is also equipped with a predictive blade 33 and a load pressure sensor 35, which is located between the predictive blade 33 and the electric slider 32.

[0076] The predictive cutter 33 is mounted on the top of the electric slider 32 of the cutting assembly 3. It can move along the cylinder axial direction with the moving table 31 and feed radially with the electric slider 32. It is used to perform pre-cutting on the outer wall of the cylinder after clamping and positioning. The load pressure sensor 35 is set between the mounting base of the predictive cutter 33 and the electric slider 32. It can collect the cutting load resistance during the pre-cutting process of the predictive cutter 33 in real time, and feed back the load fluctuation data in real time. It is linked with the clamping force data of the head section force measuring module 43 and the tail section pressure sensor to verify the rotational coaxiality of the cylinder after clamping.

[0077] Specifically, the cylinder processing equipment also includes a control system, which is used to coordinate the overall operation of the equipment.

[0078] During cylinder machining, the first step is to clamp the head section of the cylinder. This is achieved by driving three clamping blocks 42 to feed synchronously towards the center of the cylinder via a three-jaw chuck 41. The clamping blocks 42 then move the outer clamping seat 45 to fit against the outer wall of the head section of the cylinder. During clamping, the outer clamping seat 45 is subjected to the reverse force of the oxide scale and uneven surface of the cylinder, which compresses the floating spring rod 4304 on the corresponding side to generate adaptive floating. This allows the outer clamping seat 45 to form a stable surface contact with the outer wall of the cylinder, increasing the effective contact area between the three jaws and the workpiece and reducing clamping rotation eccentricity caused by local point contact.

[0079] When the outer clamp 45 is in contact with the outer wall of the cylinder, the clamping reaction force of the cylinder is synchronously transmitted to the corresponding head section force sensor 4303 through the floating spring rod 4304. The head section force sensors 4303 on the three clamping blocks 42 collect the clamping force values ​​of their respective positions in real time and upload them to the control system. The control system determines whether there is a center offset or axial tilt deviation of the cylinder by comparing the difference between the three sets of clamping force data. At the same time, it accurately locates the direction and amount of the deviation. No manual dial gauge measurement is required, and no additional detection equipment is required. Eccentricity detection and automatic correction can be completed simultaneously when the clamping action is completed, realizing online and real-time identification of the cylinder status during the clamping process and eliminating human error introduced by manual measurement.

[0080] When the control system detects that the difference between the three sets of clamping force data exceeds the preset floating data threshold, and determines that there is a clamping deviation in the cylinder, the control system sends a drive command to the double-acting cylinder 4301 corresponding to the deviation direction. The double-acting cylinder 4301 outputs linear drive force, which drives the slide plate 437 in the housing 431 to slide towards the center of the cylinder. The slide plate 437 simultaneously drives the outer clamping seat 45 to feed towards the outer wall of the cylinder, providing precise pressure compensation support for the deviation position of the cylinder, supplementing the clamping force at that position, and pushing the cylinder axis back to the center of the machine tool spindle.

[0081] While the slide plate 437 drives the outer clamp seat 45 to complete the pressure replenishment feed, the outer clamping swing rod 435 on the side wall of the slide plate 437 slides and feeds synchronously along the outer clamping anti-reverse groove 434 on the side wall of the box body 431 under the pre-tightening force of the top spring rod 436. After the pressure replenishment action is completed, if the outer clamp seat 45 has a reverse retraction tendency due to the reaction force of the cylinder, the outer clamping locking rod 439 at the end of the outer clamping swing rod 435 will be engaged in the stepped surface of the outer clamping anti-reverse groove 434 to form a mechanical lock, and form a double lock in conjunction with the pushing force of the double-acting cylinder 4301. At the same time, the mechanical lock of the outer clamping locking rod 439 can reduce the locking pressure of the double-acting cylinder 4301.

[0082] After the deviation correction and locking pressure maintenance of the head section external clamping are completed, the sliding drive stage 23 drives the tail section force-measuring three-jaw chuck 6 to feed towards the tail section of the cylinder, clamping and positioning the inner wall of the tail section of the cylinder. The tail section pressure sensors built into the three jaws of the tail section force-measuring three-jaw chuck 6 collect three sets of tail section clamping force data in real time and upload them to the control system. The control system compares the matching degree of the three sets of external clamping force data of the head section with the three sets of internal clamping force data of the tail section, and performs a second cross-verification of the coaxiality and level status of the cylinder throughout the entire length range to ensure that the cylinder coincides with the center of the machine tool spindle.

[0083] After the initial and final clamping verification is completed, the drive mechanism 24 and the sliding drive table 23 drive the cylinder to rotate at the machining speed. The moving table 31 of the cutting assembly 3 drives the predictive tool 33 to move to the preset position on the outer wall of the cylinder. The electric slider 32 drives the predictive tool 33 to feed to the preset cutting depth. The predictive tool 33 moves along the cylinder axis with the moving table 31. During the pre-cutting process, the load pressure sensor 35 collects the cutting load resistance of the predictive tool 33 in real time and uploads it to the control system. The system determines the concavity and convexity of the outer wall of the cylinder by the fluctuation of the load data. When the load data is too large, the predictive tool 33 is in the convex part. For the convex part, the predictive tool 33 can be cut off in advance to reduce the damage of the convex part to the main tool 34. If the load data is too small, the predictive tool 33 is in the concave part. For the concave part, the control system can control and slow down the rotation speed of the cylinder to make the main tool 34 cut stably when passing through the concave part.

[0084] When the machining process requires clamping the inner wall of the cylinder head section, the application of the inner clamp 44 can follow the complete closed-loop working logic of the outer clamp 45 external clamping condition described above.

[0085] In Example 3, the jaws of a conventional external chuck need to clamp and position the end of the cylinder, which will block part of the cylinder, thus preventing the blocked part from being processed and creating a processing blind spot.

[0086] Therefore, a mid-section support assembly 5 is installed on the top of the moving guide rail 22. The mid-section support assembly 5 is used to provide auxiliary support for the middle part of the cylinder, thereby providing clamping force when the cylinder is blocked during machining. It can also determine whether there is any tilting deviation of the cylinder. The specific structure of the mid-section support assembly 5 is as follows:

[0087] The intermediate support assembly 5 includes three sets of intermediate force-measuring spring rods 54, which are equidistantly arranged around the intermediate section of the cylinder outer wall. The ends of the intermediate force-measuring spring rods 54 are rotatably fitted with guide wheels 55 that fit against the outer wall of the cylinder. The intermediate force-measuring spring rods 54 are used to support the intermediate section of the cylinder outer wall and adapt the rotation of the cylinder using the guide wheels 55. At the same time, during the rotation of the cylinder, the three sets of intermediate force-measuring spring rods 54 are used to perform pressure tests to determine whether the cylinder is in a tilting deviation state.

[0088] The intermediate support assembly 5 also includes a support seat 52 disposed above the moving guide rail 22. A pressure cap 53 is hinged to the top of the support seat 52, and the support seat 52 and the pressure cap 53 form a limiting ring. Three sets of intermediate force-measuring spring rods 54 are equidistantly mounted around the outside of the limiting ring formed by the support seat 52 and the pressure cap 53. The intermediate force-measuring spring rods 54 extend into the limiting ring and are rotated by guide wheels 55. A support platform 51 is disposed on the top of the base 21, and the support seat 52 is mounted on the top of the support platform 51. A telescopic cylinder 56 is hinged to one side of the top of the support platform 51. The piston rod end of the telescopic cylinder 56 is connected to the pressure cap 53. One end of the cover 53 is hinged. When the head section and tail section of the cylinder are positioned by the head section centering assembly 4 and the tail section force measuring three-jaw chuck 6 respectively, the telescopic cylinder 56 remains in the retracted state, that is, the cover 53 is in the open state, so that the placement of the cylinder will not interfere. When the head section and tail section of the cylinder need to be processed, the telescopic cylinder 56 extends, causing the cover 53 to press on the outer wall of the support seat 52. The support seat 52 is used to provide auxiliary support for the outer wall of the middle section of the cylinder. The middle section force measuring spring rod 54, together with the corresponding guide wheel 55, performs pressure testing on the outer wall of the middle section of the cylinder to determine whether the cylinder is in a tilted deviation state.

[0089] Specifically, the cylinder barrel is first clamped and positioned at both ends by the head section centering assembly 4 and the tail section force-measuring three-jaw chuck 6. Then, the predictive cutter 33 and the main cutter 34 move to the middle section of the cylinder barrel. The cylinder barrel rotates at a preset speed under the drive of the drive mechanism 24. The electric slider 32 drives the predictive cutter 33 and the main cutter 34 to feed towards the cylinder barrel. The predictive cutter 33 first removes the oxide scale, protrusions and other uneven allowances on the outer wall of the middle section of the cylinder barrel to provide a stable cutting allowance for the main cutter 34. Then, the main cutter 34 machines a high-precision cylindrical surface at the middle section of the outer wall of the cylinder barrel as a middle section support point. This support point is completely coaxial with the rotation center of the cylinder barrel spindle, providing a precise support reference for the middle section support assembly. During the machining process, the load pressure sensor 35 monitors the cutting load in real time to ensure the machining accuracy of the support reference surface.

[0090] After the mid-section support point is processed, the limiting ring formed by the pressure cap 53 and the support seat 52 surrounds the mid-section of the cylinder. The three sets of mid-section force-measuring spring rods 54 drive the guide wheel 55 to fit against the outer wall of the mid-section support point, providing stable rotational support for the cylinder from three circumferential directions. The tail section force-measuring three-jaw chuck 6 is released and exits the tail end of the cylinder along the moving guide rail 22, completely freeing up the processing space of the tail section of the cylinder. At this time, the control system compares the mid-section pressure data measured by the three sets of mid-section force-measuring spring rods 54 with the head clamping data to perform a second cross-verification of the cylinder's horizontal state and determine whether additional pressure is needed.

[0091] Subsequently, the cutting assembly 3 performs full-length machining on the outer diameter of the cylinder from the middle section to the tail section. At the same time, the inner wall of the cylinder tail section is turned by the external cutting tool. After the cylinder tail section is machined, the tail section force-measuring three-jaw chuck 6 is re-feeded to the cylinder tail section to clamp and position the machined inner wall of the cylinder tail section. The control system cross-checks the cylinder horizontal state by comparing the matching degree between the middle section pressure data measured by the three sets of middle section force-measuring spring rods 54 and the tail clamping data, and determines whether pressure supplementation is needed.

[0092] Subsequently, the head section centering assembly 4 is released and withdrawn from the cylinder head end, completely freeing up the machining space of the cylinder head section. The cutting assembly 3 performs full-length machining on the outer circle from the middle section to the head section of the cylinder, ultimately achieving one-time blind-spot-free machining of the entire outer circle of the cylinder without the need for secondary clamping.

[0093] Example 4: A cylinder barrel machining method, using the cylinder barrel machining equipment described above, includes the following steps:

[0094] S1. The cylinder is transferred to the main component 2, and the cylinder head is positioned by the head section centering component 4. The cylinder head is clamped on the outer wall by the head three-jaw chuck 41. At this time, the cylinder is assisted in the hoisting by the external hoisting equipment.

[0095] The more specific steps in S1 are as follows:

[0096] S11. The cylinder barrel is moved to the top of the base 21 using an external hoisting device. The cylinder barrel head is clamped and positioned by the head three-jaw chuck 41, that is, the three sets of head section force measuring modules 43 clamp the outer wall of the cylinder barrel head. Then, the cylinder barrel tail section is assisted in hoisting using an external hoisting device.

[0097] S2. The floating spring rod 4304 and the outer clamp 45 are used to float and clamp the cylinder head to adapt to the state of the cylinder after oxidation. The corresponding head section force sensor 4303 detects the clamping force to generate head clamping data and sets the floating data threshold.

[0098] The more specific steps of S2 are as follows:

[0099] S21. When the three sets of head section force measuring modules 43 clamp the outer wall of the cylinder head, the head three-jaw chuck 41 drives the three clamping blocks 42 to move closer to each other, and the cylinder head is placed between the three clamping blocks 42. During the movement of the clamping blocks 42, the outer clamping seat 45 is pressed against the outer wall of the cylinder head. The outer clamping seat 45 is squeezed by the reverse force of the cylinder and the floating spring rod 4304 and the head section force measuring sensor 4303 to adapt to the state after the cylinder is oxidized. The corresponding head section force measuring sensor 4303 detects the clamping force, generates head clamping data, and sets the floating data threshold.

[0100] S3. When the three sets of head section force measuring modules 43 move towards the outer wall of the cylinder at the same time, if the three head clamping data fluctuate and are within the floating data threshold range, it is determined that the cylinder is in a horizontal state. Then, the tail section force measuring three-jaw chuck 6 clamps the inner wall of the cylinder tail. At this time, the tail section force measuring three-jaw chuck 6 generates three tail clamping data to judge and verify the state of the cylinder again.

[0101] The more specific steps for S3 are as follows:

[0102] S31. When the three sets of head force measuring modules 43 move towards the outer wall of the cylinder barrel simultaneously, if the three head clamping data fluctuate within the floating data threshold range, it is determined that the cylinder barrel is in a horizontal state. The sliding drive stage 23 drives the tail force measuring three-jaw chuck 6 to move towards the tail of the cylinder barrel. Then, the tail force measuring three-jaw chuck 6 clamps the inner wall of the tail of the cylinder barrel. At this time, the three tail force measuring sensors built into the tail force measuring three-jaw chuck 6 generate three tail clamping data, which are used to judge and verify the state of the cylinder barrel again.

[0103] S4. If the three clamping data fluctuate and exceed the floating data threshold, it is determined that the cylinder has a horizontal deviation and the direction of the deviation. At this time, the outer clamp 45 corresponding to the deviation direction is moved to provide pressure support for the cylinder, supplement the pressure value of the cylinder deviation, and adjust the direction of the cylinder deviation. Then, the tail section force-measuring three-jaw chuck 6 clamps the inner wall of the tail section of the cylinder. At this time, the tail section force-measuring three-jaw chuck 6 generates three tail clamping data to determine whether the cylinder has returned to its original position.

[0104] The more specific steps for S4 are as follows:

[0105] S41. If the three clamping data fluctuate and exceed the floating data threshold, it is determined that the cylinder has a horizontal deviation and the direction of the cylinder deviation. At this time, by controlling the corresponding cylinder deviation direction, the double-acting cylinder 4301 drives the slide plate 437 to move, causing the outer clamp 45 to be moved to squeeze the outer wall of the cylinder. The outer clamp 45 provides pressure support to the cylinder, supplementing the pressure value of the cylinder deviation, and thus adjusting the direction of the cylinder deviation.

[0106] S42, during the movement of the slide plate 437, the outer clamping swing rod 435 moves downward, the outer clamping locking rod 439 slides inside the outer clamping anti-reverse groove 434, and the outer clamping locking rod 439 is locked in the opposite direction after sliding one level. Under the mechanical locking of the outer clamping locking rod 439 and the box body 431 and the dual action of the double-acting cylinder 4301, the position of the outer clamping seat 45 is locked.

[0107] S43. Then, the cylinder barrel is clamped on the inner wall of the tail section by the tail section force measuring three-jaw chuck 6. At this time, the tail section force measuring three-jaw chuck 6 generates three tail clamping data to determine whether the cylinder barrel has returned to its original position.

[0108] S5. Then, the cylinder barrel is machined with a middle section support point on the outer wall by the cutting assembly 3. The middle section support assembly 5 supports the middle section of the cylinder barrel. Then, the tail section force-measuring three-jaw chuck 6 is controlled to move away from the cylinder barrel. The cutting assembly 3 performs outer ring machining on the cylinder barrel from the middle section to the tail section again. The inner wall of the tail section of the cylinder barrel is machined in a small range by the external cutting tool. At this time, the inner support point of the tail section of the cylinder barrel and the support point of the middle section of the cylinder barrel are concentric. Then, the tail section force-measuring three-jaw chuck 6 clamps the cylinder barrel again, while the head section force-measuring module 43 moves away from the cylinder barrel. The cutting assembly 3 performs outer ring machining on the cylinder barrel from the middle section to the head section again. The cutting assembly 3 detects the load on the outer wall of the cylinder barrel in real time and controls the cylinder barrel speed in linkage to achieve the purpose of one-time machining.

[0109] The more specific steps for S5 are as follows:

[0110] S51, then the moving stage 31 drives the electric slider 32, the predictive blade 33, the main blade 34 and the load pressure sensor 35 to move synchronously to the middle section of the cylinder. The predictive blade 33 and the main blade 34 are both in contact with the outer wall of the cylinder. At the same time, the extension length of the predictive blade 33 is less than the extension length of the main blade 34. Then the cylinder is driven to rotate by the drive mechanism 24 and the head section centering assembly 4. At this time, the electric slider 32 drives the predictive blade 33 and the main blade 34 to move closer to the cylinder. The predictive blade 33 scrapes off the protrusions on the outer wall of the cylinder, and the main blade 34 cuts out the middle section support point at the middle section position of the outer wall of the cylinder.

[0111] S52. Then, control the tail section force-measuring three-jaw chuck 6 to move away from the cylinder. The predictive cutter 33 and the main cutter 34 then perform outer ring machining on the cylinder from the middle section to the tail section in sequence. The inner wall of the cylinder tail section is then machined in a small range by the external cutting tool. At this time, the inner clamping support point of the cylinder tail section and the support point of the cylinder middle section are concentric. Then, the tail section force-measuring three-jaw chuck 6 clamps the cylinder again, while the head section force-measuring module 43 moves away from the cylinder. The predictive cutter 33 and the main cutter 34 then perform outer ring machining on the cylinder from the middle section to the head section again.

[0112] S53. During the machining process of the cutting component 3, the load pressure sensor 35 continuously monitors the load resistance of the cylinder barrel on the main cutter 34. When there is a protrusion on the outer wall of the cylinder barrel, the load resistance will increase. At this time, the main cutter 34 cuts the protrusion on the outer wall of the cylinder barrel. When there is a depression on the outer wall of the cylinder barrel, the load resistance will decrease. At this time, the rotation speed of the cylinder barrel is controlled in a linked manner, thereby predicting in advance the concave and convex conditions of the outer wall of the cylinder barrel, reducing the damage of the cylinder barrel to the main cutter 34, so as to achieve the purpose of one-time turning forming.

[0113] The control logic of real-time load monitoring, prediction of concave and convex conditions on the outer wall of the cylinder barrel, and linked adaptation of the spindle speed during the above cutting process, based on the supporting mechanisms of the head section, middle section, and tail section of this equipment, forms a standardized coaxiality control and machining execution process. The working conditions definition and step-by-step execution logic of each clamping position sensor are as follows:

[0114] Definition of the front sensor:

[0115] Outer clamping in the head section (the outer clamping seat 45 fits the outer wall): W11, W12, W13 (3 special outer clamping force sensors);

[0116] Inner clamping in the head section (the inner clamping seat 44 fits the inner wall): W21, W22, W23 (3 special inner clamping force sensors).

[0117] Support in the middle section: Z1, Z2, Z3 (3 middle section force sensors).

[0118] Inner support in the tail section: N1, N2, N3 (3 tail section force sensors).

[0119] The following is the working condition of the outer clamping of the cylinder head:

[0120] Step 1: Complete the basic clamping of the outer clamping in the head section and the inner support in the tail section, and collect the pressure data of W11, W12, W13 and N1, N2, N3.

[0121] Coaxiality judgment and adjustment: The pressure difference between 3 claws in the same group ≤ 5%, and the pressure difference between the corresponding claws at the head and tail ≤ 8% is qualified; if unqualified, single-claw supplementary pressure is used to adjust the eccentricity, and after the adjustment is completed, lock it to prevent backtracking.

[0122] Step 2: Conduct centering closed-loop verification and locking.

[0123] Continuously collect the pressure data, confirm that the clamping is qualified and the coaxiality meets the standard, lock the clamping oil pressure and the locked state, and synchronize the reference parameters to the control system.

[0124] Step 3: Keep the head and tail clamped and immobile, turn the reference support point in the middle section, monitor the pressure in real time, immediately supplement the pressure to prevent slipping when the pressure decay exceeds 5%, and adjust the cutting parameters in a linked manner according to the pressure fluctuation to turn out a high-precision reference surface in the middle section coaxial with the spindle.

[0125] Step 4: Switch to head and middle clamping, release tail section, and collect pressure data for W11, W12, W13, Z1, Z2, and Z3.

[0126] Coaxiality judgment and adjustment: The pressure difference within the same group is ≤5%, and the pressure difference between the corresponding claws of the head section and the middle section is ≤8% to be considered qualified; if unqualified, the head section clamping is finely adjusted based on the middle section reference plane, and locked after adjustment.

[0127] Step 5: Turn from the middle section to the tail section to complete the precision turning of the inner wall of the tail section. Monitor the clamping pressure in the head, and immediately replenish the pressure to prevent deviation if there is an abnormality. Adjust the spindle speed in conjunction with the cutting load to complete the high-precision reference inner hole machining of the tail section.

[0128] Step 6: Switch to tail and middle clamping, release the head section, and collect pressure data for Z1, Z2, Z3, N1, N2, and N3.

[0129] Step 7: Turn from the middle section to the head section to complete the final finish turning of the entire cylinder. Monitor the clamping pressure at the middle and tail, dynamically compensate for pressure to prevent deviation, and reduce speed in conjunction with pressure and cutting load fluctuations to ensure machining quality. After machining, reverse verify the coaxiality of the entire cylinder through 9 sets of pressure data.

[0130] Internal clamping working condition adaptation instructions:

[0131] When the head section uses the inner clamp seat 44 for inner wall clamping, it is only necessary to switch the head section force measurement data source to W21, W22, or W23. The judgment logic, adjustment actions, and processing flow of steps 1-7 above remain unchanged. Switching the corresponding inner clamping locking structure will allow for seamless adaptation.

[0132] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

Claims

1. A cylinder barrel processing equipment, characterized in that: Including the hood (1); The main body component (2) is located inside the engine cover (1) and serves as the pre-positioning of the main body for the cylinder barrel; A cutting assembly (3) slides on one side of the main body assembly (2) and is used for machining the outer circle of the cylinder. The head section centering assembly (4) is connected to the main body assembly (2) and is used to clamp the cylinder head section. The head section centering assembly (4) includes a head three-jaw chuck (41) connected to the main body assembly (2) and a clamping block (42) installed on the three jaws of the head three-jaw chuck (41). The side wall of the clamping block (42) is equipped with a head section force measuring module (43). The top and bottom of the head section force measuring module (43) are respectively provided with an inner clamping seat (44) and an outer clamping seat (45). The head section force measuring module (43) includes two sets of floating spring rods (4304) and two sets of head section force measuring sensors (4303). One set of floating spring rods (4304) and one set of head section force measuring sensors (4303) form a set. The two sets of floating spring rods (4304) and two sets of head section force measuring sensors (4303) are respectively installed on the top and bottom of the clamping block (42). The middle section support assembly (5) includes three sets of middle section force-measuring spring rods (54). The three sets of middle section force-measuring spring rods (54) are equidistantly arranged around the middle section of the cylinder outer wall. The end of the middle section force-measuring spring rod (54) has a guide wheel (55) that rotatably fits against the cylinder outer wall. The tail section force measuring three-jaw chuck (6) is connected to the main body component (2) and is used to clamp the tail section of the cylinder. The tail section pressure sensor is built into each of the three jaws of the tail section force measuring three-jaw chuck (6). The head section force measuring module (43) includes a box (431) installed on one side of the clamp (42). A slide plate (437) is slidably connected inside the box (431). The end and bottom of the slide plate (437) extend into the inner clamp (44) and the outer clamp (45) respectively. A double-acting cylinder (4301) is also installed inside the box (431). The two output ends of the double-acting cylinder (4301) are connected to the side wall of the slide plate (437) respectively. The side wall of the box (431) is provided with an inner clamping anti-reverse groove (432) and an outer clamping anti-reverse groove (434). The side wall of the slide plate (437) is rotatably connected with an inner clamping swing rod (433) and an outer clamping swing rod (435). The inner clamping swing rod (433) corresponds to the inner clamping anti-reverse groove (432), and the outer clamping swing rod (435) corresponds to the outer clamping anti-reverse groove (434). The side wall of the slide plate (437) is symmetrically equipped with two top spring rods (436). The two top spring rods (436) correspond to the inner clamping swing rod (433) and the outer clamping swing rod (435) respectively. The outer side wall of the inner clamping swing rod (433) and the outer clamping swing rod (435) is provided with a notch that fits with the corresponding top spring rod (436).

2. The cylinder barrel processing equipment according to claim 1, characterized in that: The main component (2) includes a base (21) installed inside the housing (1) and a drive mechanism (24) installed on one side of the top of the base (21). The head three-jaw chuck (41) is connected to the output end of the drive mechanism (24). A moving guide rail (22) is installed on the top of the base (21). A sliding drive table (23) slides on the top of the moving guide rail (22). The tail force measuring three-jaw chuck (6) is installed on the output end of the sliding drive table (23). A side guide rail (25) is installed on one side of the moving guide rail (22). The cutting component (3) slides on the side guide rail (25). The middle support component (5) is installed on the top of the moving guide rail (22).

3. The cylinder barrel processing equipment according to claim 2, characterized in that: A movable stage (31) slides on the side guide rail (25), and an electric slider (32) slides on the top of the movable stage (31). A main blade (34) is mounted on the top of the electric slider (32), and the main blade (34) extends to the outer wall of the cylinder.

4. The cylinder barrel processing equipment according to claim 3, characterized in that: The top of the electric slider (32) is also equipped with a prediction knife (33) and a load pressure sensor (35), which is located between the prediction knife (33) and the electric slider (32).

5. The cylinder barrel processing equipment according to claim 1, characterized in that: An inner clamping rod (438) is installed through the bottom of the inner clamping rod (433), and an outer clamping rod (439) is installed through the bottom of the outer clamping rod (435). The fully retracted state of the inner clamping rod (438) and the outer clamping rod (439) is less than the inner cavity thickness of the box body (431).

6. The cylinder barrel processing equipment according to claim 5, characterized in that: The inner sidewall of the box (431) has two symmetrical guide grooves (4302), which correspond to the inner locking rod (438) and the outer locking rod (439) respectively. One end of the inner locking rod (438) and the outer locking rod (439) can be inserted into the corresponding guide groove (4302).

7. The cylinder processing equipment according to claim 2, characterized in that: The mid-section support assembly (5) also includes a support seat (52) disposed above the main body assembly (2). A pressure cap (53) is hinged to the top of the support seat (52). The support seat (52) and the pressure cap (53) form a limiting ring. Three sets of mid-section force-measuring spring rods (54) are equidistantly mounted around the outside of the limiting ring formed by the support seat (52) and the pressure cap (53). The mid-section force-measuring spring rods (54) extend into the limiting ring and rotate with guide wheels (55). A support platform (51) is provided on the top of the base (21). The support seat (52) is mounted on the top of the support platform (51). A telescopic cylinder (56) is hinged to one side of the top of the support platform (51). The piston rod end of the telescopic cylinder (56) is hinged to one end of the pressure cap (53).

8. A cylinder barrel machining method, using a cylinder barrel machining equipment as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. The cylinder is transferred to the main component (2), and the cylinder head is positioned by the head section centering component (4), and the cylinder head is clamped on the outer wall by the head three-jaw chuck (41). At this time, the cylinder is assisted in the hoisting using external hoisting equipment. S2. The cylinder head is floated and clamped by the cooperation of the floating spring rod (4304) and the outer clamp (45) to adapt to the state of the cylinder after oxidation. The corresponding head section force sensor (4303) detects the clamping force to generate head clamping data and sets the floating data threshold. S3. When the three sets of head section force measuring modules (43) move towards the outer wall of the cylinder at the same time, if the three head clamping data fluctuate and are within the floating data threshold range, the cylinder is determined to be in a horizontal state. Then, the tail section force measuring three-jaw chuck (6) clamps the inner wall of the tail of the cylinder. At this time, the tail section force measuring three-jaw chuck (6) generates three tail clamping data to judge and verify the state of the cylinder again. S4. If the three clamping data fluctuate and exceed the floating data threshold, it is determined that the cylinder has a horizontal deviation and the direction of the cylinder deviation. At this time, the outer clamp (45) corresponding to the deviation direction is moved to provide pressure support for the cylinder, supplement the pressure value of the cylinder deviation, and then adjust the direction of the cylinder deviation. Then, the tail section force measuring three-jaw chuck (6) clamps the inner wall of the tail section of the cylinder. At this time, the tail section force measuring three-jaw chuck (6) generates three tail clamping data to determine whether the state of the cylinder has returned to the original position. S5. Then, the cylinder barrel is machined with the middle section support point on the outer wall by the cutting component (3). The middle section support component (5) supports the middle section of the cylinder barrel. Then, the tail section force measuring three-jaw chuck (6) is controlled to move away from the cylinder barrel. The cutting component (3) performs outer ring machining on the middle section to the tail section of the cylinder barrel again. The inner wall of the tail section of the cylinder barrel is machined in a small range by the external cutting tool. At this time, the inner support point of the tail section of the cylinder barrel and the support point of the middle section of the cylinder barrel are concentric. Then, the tail section force measuring three-jaw chuck (6) clamps the cylinder barrel again, while the head section force measuring module (43) moves away from the cylinder barrel. The cutting component (3) performs outer ring machining on the middle section to the head section of the cylinder barrel again. The cutting component (3) detects the load on the outer wall of the cylinder barrel in real time and controls the cylinder barrel speed in linkage to achieve the purpose of one-time machining.

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