A straightening apparatus and method for a hydraulic cylinder housing

Abstract

This invention discloses a straightening device and method for hydraulic cylinder housings, relating to the field of hydraulic cylinder processing technology. It includes: a transfer box with a transfer assembly mounted at its top, and a detection assembly mounted inside the transfer box below the transfer assembly; a through-hole located at the bottom of the transfer box on the side facing the transfer assembly; a lifting frame mounted on one side of the transfer box and positioned on one side of the through-hole; and an external cylinder liner straightening assembly positioned on one side of the transfer box, with an internal cylinder liner straightening assembly and a support seat respectively located on its upper and lower sides. During the transport of the hydraulic cylinder housing, this invention inspects the housing from both the inside and outside, and transports any housings that fail inspection to the external cylinder liner straightening assembly via the cylinder liner moving assembly for straightening. This improves overall processing efficiency when processing a large number of housings continuously.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder processing technology, and more specifically, to a straightening device and method for hydraulic cylinder housings. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. A hydraulic cylinder basically consists of a cylinder and cylinder head, a piston and piston rod, a sealing device, a cushioning device, and an exhaust device.

[0003] During the production process, the housing of a hydraulic cylinder may be affected by various factors, such as materials, processing techniques, and heat treatment, causing changes in its shape or size. To ensure the normal operation and service life of the hydraulic cylinder, manufacturers typically perform calibration on the hydraulic cylinder housing. This includes inspecting and adjusting the shape, dimensions, and surface quality of the housing to ensure it meets design requirements and standards.

[0004] In the existing technology, during the production of a large number of hydraulic cylinder housings, the manufacturer's straightening device is required to quickly identify and straighten the hydraulic cylinder housings in order to improve processing efficiency. Therefore, this invention proposes a straightening device and method for hydraulic cylinder housings. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a straightening device and method for hydraulic cylinder housing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a straightening device for hydraulic cylinder housings, comprising a conveying box, wherein a conveying component is installed at the top of the conveying box, and a detection component is installed inside the conveying box below the conveying component. Each cylinder housing is moved by the conveying component and inspected by the detection component to determine whether the shape of the outer and inner parts of the housing has changed.

[0007] The bottom of the conveyor box is provided with a through opening on the side of the detection component facing the direction of movement of the conveyor component, and a lifting frame is installed on the outside of the conveyor box on one side of the through opening. A cylinder liner external correction component is provided on one side of the lifting frame, a cylinder liner internal correction component is installed on the top of the cylinder liner external correction component, and a support base is provided on the lower side of the cylinder liner external correction component.

[0008] A translation frame is installed between the lifting frame and the cylinder liner outer straightening assembly. A cylinder liner moving assembly is installed on the upper side of the translation frame. The cylinder liner moving assembly moves between the lifting frame and the cylinder liner outer straightening assembly based on the translation frame. After moving to one side of the lifting frame, the lifting frame lifts it to the lower side of the through-hole of the conveyor box, takes the unqualified shell out of the conveyor box, and transports it to the cylinder liner outer straightening assembly through the translation frame. The cylinder liner outer straightening assembly and the cylinder liner inner straightening assembly cooperate to straighten the shell.

[0009] The support base provides support to the bottom of the shell during the straightening process.

[0010] Furthermore, the conveying assembly includes a circulating belt connected to the conveyor box, and a plurality of equally spaced steering mechanisms are installed on the outer side of the circulating belt. Each steering mechanism has a first drive frame installed at its output end. The first drive frame has a plurality of output ends, and each output end has a first support member installed.

[0011] When the first drive frame starts, it drives each first support component to move synchronously. Then, when assembling with the outer shell, one end of the outer shell can be clamped, making it easier to move and rotate.

[0012] Furthermore, the detection component includes two sets of first push rods and an infrared recognition module, with the two sets of first push rods respectively installed on both sides inside the conveyor box;

[0013] The output ends of each of the first push rods are all oriented toward the central axis of the conveyor box, and each is equipped with multiple assembly racks. The assembly racks on both sides inside the conveyor box are staggered.

[0014] Each of the assembly racks has multiple vertically distributed pressure sensing modules installed on its side.

[0015] Before the casing test, a set of standard component casings are brought into contact with each row of pressure sensing modules inside the test assembly, and basic pressure is applied to each of them. The results are recorded as standard data A.

[0016] After the shell to be tested comes into contact with each pressure sensing module, each pressure sensing module generates real-time data B. By comparing the real-time data B with the standard data A, the difference value is obtained, and the difference value is compared with the preset comparison threshold.

[0017] If the difference value is greater than the comparison threshold, the outer shell is marked as unqualified, and the cylinder liner moving assembly moves it to the cylinder liner external correction assembly for correction;

[0018] If the difference value is not greater than the comparison threshold, the shell is marked as qualified and the shell moves to the next processing equipment with the conveyor assembly.

[0019] Furthermore, the infrared recognition module is installed at the bottom of the inside of the conveyor box, and the infrared recognition module is equipped with multiple recognition units that can move synchronously. When each recognition unit moves, it moves around the center of the infrared recognition module.

[0020] As the outer shell passes by, the moving path of the central part of the outer shell passes above the central part of the infrared recognition module. After the central part of the outer shell coincides with the central part of the infrared recognition module, the conveying component stops working, and each recognition unit moves synchronously to detect the inner diameter of the outer shell.

[0021] Furthermore, both the lifting frame and the translation frame include a first axial drive mechanism, and an electromagnetic adsorption mechanism is installed at the output end of the first axial drive mechanism.

[0022] Furthermore, the cylinder liner external straightening assembly includes a first assembly box, and a plurality of first cylinders are installed inside the first assembly box. The plurality of first cylinders are distributed in multiple rows and are installed in a ring inside the first assembly box.

[0023] An assembly plate is installed between the output ends of the first cylinders in each row. The edges of each adjacent assembly plate abut against each other, and an annular area is formed between the inner walls of each assembly plate. When the outer shell is straightened, its outer wall is embedded in the annular area.

[0024] Furthermore, the cylinder liner internal straightening assembly includes a second assembly box, the top of which is equipped with a second cylinder, the output end of which is oriented downwards and is equipped with an inner diameter straightening component;

[0025] When the housing is straightened, the inner diameter straightener is embedded inside the housing.

[0026] Furthermore, the second assembly box is equipped with a circulation frame that is sleeved on the outside of the inner diameter straightening component. The output end of the circulation frame is equipped with a connecting frame, and the side of the connecting frame facing the inner diameter straightening component is equipped with an oiling frame via a second push rod.

[0027] The upper oil frame includes a housing connected to the second push rod. A roller is rotatably connected inside the housing. One side of the roller extends to the outside of the housing and, driven by the second push rod, contacts the outer wall of the inner diameter straightening component.

[0028] An oil supply unit is installed inside the housing on the side near the roller. When the roller rotates, the oil supply unit applies lubricating oil to the outside of the roller and applies lubricating oil to the outside of the inner diameter straightener as the roller contacts and rotates.

[0029] Furthermore, the cylinder liner moving assembly includes a base, and magnetic attraction parts are provided on the side of the base facing the lifting frame and the translation frame. When the cylinder liner moving assembly is assembled and moved with the lifting frame or the translation frame, the magnetic attraction parts in the base are connected to the electromagnetic adsorption mechanism in the lifting frame or the translation frame.

[0030] The base is equipped with a lifting mechanism, and a second drive frame is installed at the output end of the lifting mechanism;

[0031] The upper side of the second drive frame is provided with multiple output sections. Each output section moves synchronously with the center of the second drive frame as the center, and each output section is equipped with a second support member.

[0032] When each of the second support members moves based on the output part, it is clamped from the inside or outside of the bottom of the housing.

[0033] Furthermore, a column is installed at the center of the upper surface of the second drive frame. When the bottom of the housing is not closed, after the housing falls onto the cylinder liner moving assembly, the column is embedded into the interior of the housing and supports the housing to prevent the housing from tipping over.

[0034] Furthermore, the support includes a frame and a reinforcing base. The frame is installed on the lower side of the cylinder liner outer straightening assembly, and the frame is a frame structure.

[0035] Both sides of the frame are equipped with a second axial drive mechanism, and multiple support cylinders are installed at the output ends of the two sets of second axial drive mechanisms.

[0036] Multiple support cylinders are used to lift both sides of the reinforcement seat, and the second axial drive mechanism drives the reinforcement seat to move between the lower side and one side of the cylinder liner outer straightening assembly;

[0037] After the reinforcement seat is moved to one side of the cylinder liner external straightening assembly, there is no obstruction between the bottom of the cylinder liner external straightening assembly and the translation frame.

[0038] After the reinforcement seat is moved to the underside of the cylinder liner outer straightening assembly, it is supported from the bottom of the housing during housing straightening.

[0039] This invention also discloses a method for straightening a hydraulic cylinder housing, comprising the following steps:

[0040] Step 1: Install the cylinder shells with no external abnormalities onto the conveying assembly of the above-mentioned straightening equipment in sequence, and move them to the detection assembly for shell inspection via the conveying assembly;

[0041] Step 2: When a defective shell is detected, the conveying assembly moves it to the upper side of the through-hole, and the cylinder liner moving assembly transfers the shell to the cylinder liner outer straightening assembly;

[0042] Step 3: The support base supports the outer shell from the bottom in Step 2, and the various assembly plates in the cylinder liner external straightening assembly support and straighten the outer shell from the sides.

[0043] Step 4: The cylinder liner internal straightening assembly is activated to straighten the outer shell from the inside.

[0044] Step 5: The cylinder liner moving assembly transports the housing calibrated in Step 4 to the transfer box, which then moves it along with the remaining qualified housings to the next processing equipment.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] During the transportation of the cylinder housing, this invention inspects the housing from both the inside and outside. Housings that fail the inspection are then transported to the cylinder liner external correction assembly via the cylinder liner moving assembly for correction. This improves the overall processing efficiency when processing a large number of housings continuously.

[0047] Furthermore, when the cylinder housing is being straightened, the present invention has a corresponding straightening area built in, and straightens simultaneously from the inside and outside of the housing through the inner diameter straightening component and the assembly plate, thereby improving the quality of straightening. During straightening, the housing is supported from the bottom by the support seat. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of a straightening device for a hydraulic cylinder housing;

[0049] Figure 2 This is a cross-sectional view of the correction device in this invention;

[0050] Figure 3 This is a cross-sectional view of the cylinder liner moving assembly in the straightening device of the present invention;

[0051] Figure 4 This is a side sectional view of the support base in the correction device of the present invention;

[0052] Figure 5 This is a top sectional view of the cylinder liner external straightening assembly in the straightening device of the present invention;

[0053] Figure 6 This is a top sectional view of the straightening component inside the cylinder liner in the straightening device of the present invention;

[0054] In the diagram: 1. Conveyor box; 2. Conveyor assembly; 3. Detection assembly; 4. Lifting frame; 5. Translation frame; 6. Cylinder liner moving assembly; 7. Cylinder liner external straightening assembly; 8. Cylinder liner internal straightening assembly; 9. Support seat; 21. Circulating belt; 22. Steering mechanism; 23. First drive frame; 24. First support member; 31. First push rod; 32. Assembly frame; 33. Pressure sensing module; 34. Infrared recognition module; 41. First axial drive mechanism; 42. Electromagnetic... Adsorption mechanism; 71, First assembly box; 72, First cylinder; 73, Assembly plate; 81, Second assembly box; 82, Second cylinder; 83, Inner diameter straightening component; 84, Circulation frame; 85, Connecting frame; 86, Second push rod; 87, Oiling frame; 61, Base; 62, Lifting mechanism; 63, Second drive frame; 64, Column; 65, Second support component; 91, Reinforcing seat; 92, Frame body; 93, Second axial drive mechanism; 94, Support cylinder. Detailed Implementation

[0055] Reference Figures 1 to 6 As shown, a straightening device for hydraulic cylinder housings includes a conveyor box 1, a conveyor assembly 2 installed at the top inside the conveyor box 1, and a detection assembly 3 installed inside the conveyor box 1 below the conveyor assembly 2. Each cylinder housing moves through the conveyor assembly 2 and is inspected by the detection assembly 3 to determine whether the shape of the outer and inner parts of the housing has changed.

[0056] The bottom of the conveyor box 1 is provided with a through opening on the side of the detection component 3 facing the direction of movement of the conveyor component 2. A lifting frame 4 is installed on the outside of the conveyor box 1 on one side of the through opening. A cylinder liner external correction component 7 is provided on one side of the lifting frame 4. A cylinder liner internal correction component 8 is installed on the top of the cylinder liner external correction component 7. A support seat 9 is provided on the lower side of the cylinder liner external correction component 7.

[0057] A translation frame 5 is installed between the lifting frame 4 and the cylinder liner outer straightening assembly 7. A cylinder liner moving assembly 6 is installed on the upper side of the translation frame 5. The cylinder liner moving assembly 6 moves between the lifting frame 4 and the cylinder liner outer straightening assembly 7 based on the translation frame 5. After moving to one side of the lifting frame 4, the lifting frame 4 lifts it to the lower side of the through-hole of the conveyor box 1, takes the unqualified shell out of the conveyor box 1, and transports it to the cylinder liner outer straightening assembly 7 through the translation frame 5. The cylinder liner outer straightening assembly 7 and the cylinder liner inner straightening assembly 8 cooperate to straighten the shell.

[0058] The support base 9 provides support to the bottom of the shell during the straightening process.

[0059] Reference Figure 2As shown, the conveying assembly 2 includes a circulating belt 21 connected to the conveying box 1. Multiple equally spaced steering mechanisms 22 are installed on the outer side of the circulating belt 21. Each steering mechanism 22 has a first drive frame 23 installed at its output end. The first drive frame 23 has multiple output ends, and each output end has a first support member 24 installed.

[0060] When the first drive frame 23 starts, it drives each first support member 24 to move synchronously. Thus, when assembling with the outer shell, one end of the outer shell can be clamped, making it easier to move and rotate.

[0061] The detection component 3 includes two sets of first push rods 31 and an infrared recognition module 34. The two sets of first push rods 31 are respectively installed on both sides inside the transfer box 1.

[0062] The output ends of each first push rod 31 are all facing the central axis of the conveyor box 1, and each is equipped with multiple assembly racks 32. The assembly racks 32 on both sides inside the conveyor box 1 are staggered.

[0063] Each assembly rack 32 has multiple vertically distributed pressure sensing modules 33 installed on its side;

[0064] Before the outer casing test, a set of standard component outer casings are brought into contact with each row of pressure sensing modules 33 inside the test assembly 3, and basic pressure is applied to each of them, which is recorded as standard data A.

[0065] After the shell to be tested comes into contact with each pressure sensing module 33, each pressure sensing module 33 generates real-time data B. By comparing the real-time data B with the standard data A, the difference value is obtained, and the difference value is compared with the preset comparison threshold.

[0066] If the difference value is greater than the comparison threshold, the outer shell is marked as unqualified, and the cylinder liner moving assembly 6 moves it to the cylinder liner outer correction assembly 7 for correction;

[0067] If the difference value is not greater than the comparison threshold, the shell is marked as qualified and the shell moves to the next processing equipment with the conveyor component 2.

[0068] The infrared recognition module 34 is installed at the bottom of the inside of the conveyor box 1, and the infrared recognition module 34 is equipped with multiple recognition units that can move synchronously. When each recognition unit moves, it moves around the center of the infrared recognition module 34.

[0069] As the outer shell passes by, the moving path of the center part of the outer shell passes above the center part of the infrared recognition module 34. After the center part of the outer shell coincides with the center part of the infrared recognition module 34, the conveying component 2 stops working, and each recognition unit moves synchronously to detect the size of the inner diameter of the outer shell.

[0070] Each identification unit adopts an infrared structure. When the infrared light is not projected onto the side wall of the shell, the length read by the corresponding identification unit is greater than the length of the shell. When there is deformation on the inner wall of the shell, the length information read by the identification unit at the corresponding position is detected to have changed, and the time of change is different from the time when the other identification units identify the normal side wall of the shell.

[0071] Furthermore, when the infrared recognition module 34 detects, the outer casing rotates based on the steering mechanism 22 in the transmission assembly 2.

[0072] Both the lifting frame 4 and the translation frame 5 include a first axial drive mechanism 41, and an electromagnetic adsorption mechanism 42 is installed at the output end of the first axial drive mechanism 41.

[0073] The cylinder liner external straightening assembly 7 includes a first assembly box 71, and a plurality of first cylinders 72 are installed inside the first assembly box 71. The plurality of first cylinders 72 are distributed in multiple rows and are installed in a ring inside the first assembly box 71.

[0074] An assembly plate 73 is installed between the output ends of each first cylinder 72. The edges of each adjacent assembly plate 73 abut against each other, and an annular area is formed between the inner walls of each assembly plate 73. When the outer shell is straightened, its outer wall is embedded in the annular area.

[0075] The cylinder liner internal straightening assembly 8 includes a second assembly box 81, a second cylinder 82 is installed at the top inside the second assembly box 81, the output end of the second cylinder 82 is set downward and an inner diameter straightening component 83 is installed thereon;

[0076] When the housing is straightened, the inner diameter straightening element 83 is embedded inside the housing.

[0077] The second assembly box 81 is equipped with a circulation frame 84 that is sleeved on the outside of the inner diameter straightening component 83. The output end of the circulation frame 84 is equipped with a connecting frame 85. The side of the connecting frame 85 facing the inner diameter straightening component 83 is equipped with an oiling frame 87 via a second push rod 86.

[0078] The upper oil rack 87 includes a housing connected to the second push rod 86. A roller is rotatably connected inside the housing. One side of the roller extends to the outside of the housing and contacts the outer wall of the inner diameter straightening member 83 under the drive of the second push rod 86.

[0079] An oil supply unit is installed inside the housing on the side near the roller. When the roller rotates, the oil supply unit applies lubricating oil to the outside of the roller and applies lubricating oil to the outside of the inner diameter straightener 83 as the roller contacts and rotates with the roller.

[0080] Reference Figure 3As shown, the cylinder liner moving assembly 6 includes a base 61. The base 61 is provided with magnetic attraction parts on the side facing the lifting frame 4 and the translation frame 5. When the cylinder liner moving assembly 6 is assembled and moved with the lifting frame 4 or the translation frame 5, the magnetic attraction parts in the base 61 are connected to the electromagnetic adsorption mechanism 42 in the lifting frame 4 or the translation frame 5.

[0081] A lifting mechanism 62 is installed inside the base 61, and a second drive frame 63 is installed at the output end of the lifting mechanism 62.

[0082] The upper side of the second drive frame 63 is provided with multiple output parts. Each output part moves synchronously with the center of the second drive frame 63 as the center, and each output part is equipped with a second support member 65.

[0083] When each of the second support members 65 moves based on the output part, it is clamped from the inside or outside of the bottom of the housing.

[0084] A column 64 is installed at the center of the upper surface of the second drive frame 63. When the bottom of the housing is not closed, after the housing falls on the cylinder liner moving assembly 6, the column 64 is embedded into the interior of the housing and supports the housing to prevent the housing from tipping over.

[0085] Reference Figure 4 As shown, the support base 9 includes a frame 92 and a reinforcing base 91. The frame 92 is installed on the lower side of the cylinder liner outer straightening assembly 7, and the frame 92 is a frame structure.

[0086] The frame 92 has a second axial drive mechanism 93 installed on both sides inside, and the output ends of the two sets of second axial drive mechanisms 93 are each equipped with multiple support cylinders 94.

[0087] Multiple support cylinders 94 are used to lift the two sides of the reinforcing seat 91, and drive the reinforcing seat 91 to move between the lower side and one side of the cylinder liner outer straightening assembly 7 through the second axial drive mechanism 93.

[0088] After the reinforcing seat 91 moves to one side of the cylinder liner external straightening assembly 7, there is no obstruction between the bottom of the cylinder liner external straightening assembly 7 and the translation frame 5.

[0089] After the reinforcing seat 91 is moved to the underside of the cylinder liner outer straightening assembly 7, it is supported from the bottom of the housing during housing straightening.

[0090] Working principle:

[0091] The cylinder housings with no apparent abnormalities are sequentially installed onto the transmission assembly 2 of the above-mentioned straightening equipment. After assembling 5 sets, a set of empty first drive frames 23 is reserved. During installation, the openings of each housing are fitted onto the outside of each first support member 24 in the transmission assembly 2. Then the first drive frame 23 is started, and the housings are assembled by moving each first support member 24.

[0092] Then, the conveyor component 2 is activated, which moves each shell sequentially to the detection component 3 for shell detection;

[0093] When a defective shell is detected, the conveying assembly 2 moves it to the upper side of the through opening and then stops working. The electromagnetic adsorption mechanism 42 in the translation frame 5 drives the cylinder liner moving assembly 6 to move to one side of the lifting frame 4. Then the electromagnetic adsorption mechanism 42 in the lifting frame 4 starts and completes the assembly with the cylinder liner moving assembly 6. The electromagnetic adsorption mechanism 42 in the translation frame 5 is then disconnected from the cylinder liner moving assembly 6.

[0094] Then the first axial drive mechanism 41 is activated, driving the cylinder liner moving assembly 6 to rise to the lower side of the through opening of the transfer box 1. Subsequently, the lifting mechanism 62 in the cylinder liner moving assembly 6 is activated, raising the second drive frame 63 to the lower side of the housing. Then the second drive frame 63 is activated, assembling the bottom of the housing through each second support member 65. Then the first drive frame 23 drives the first support member 24 to reset, disconnecting the connection with the top of the housing.

[0095] Then the electromagnetic adsorption mechanism 42 in the lifting frame 4 descends and resets, bringing the cylinder liner moving assembly 6 into contact with the electromagnetic adsorption mechanism 42 in the translation frame 5. Then the translation frame 5 drives the cylinder liner moving assembly 6 to move to the lower side of the cylinder liner outer correction assembly 7.

[0096] The lifting mechanism 62 in the cylinder liner moving assembly 6 is activated again, lifting the outer shell into the cylinder liner external straightening assembly 7. Subsequently, each of the first cylinders 72 in the cylinder liner external straightening assembly 7 is activated, and the outer shell is clamped and wrapped by the assembly plate 73.

[0097] Subsequently, the cylinder liner moving assembly 6 is reset, the frame 92 in the support seat 9 drives the reinforcing seat 91 to move to the lower side of the cylinder liner outer correction assembly 7, and the support cylinder 94 is disconnected from the reinforcing seat 91. After the reinforcing seat 91 loses the support of the support cylinder 94, it sits on the ground. Then, the first cylinder 72 drives the assembly plate 73 to retract one end distance, and after the bottom of the outer shell sits on the upper side of the reinforcing seat 91, the outer shell is clamped.

[0098] Then, the oiling frame 87 rotates once along the inner diameter straightener 83, applies lubricating oil to the outside of the inner diameter straightener 83, and then resets. Finally, the second cylinder 82 drives the inner diameter straightener 83 to descend and embed into the inside of the housing, and works with the assembly plate 73 to straighten the housing.

[0099] The support base 9 supports the outer shell in step two from the bottom, and the various assembly plates 73 in the cylinder liner external straightening assembly 7 support and straighten the outer shell from the side.

[0100] Subsequently, the cylinder liner moving assembly 6 moves the corrected housing to the lower side of the transfer box 1. After encountering the idle first drive frame 23, the housing is lifted by the lifting frame 4 and assembled with it.

[0101] The transfer box 1 moves the corrected shell along with the remaining qualified shells to the next processing equipment.

[0102] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of this template.

Claims

1. A straightening apparatus for a hydraulic cylinder housing, characterized by include: The conveyor box (1) has a conveyor component (2) installed at the top inside, and a detection component (3) is installed inside the conveyor box (1) on the lower side of the conveyor component (2). The through opening is located at the bottom of the conveyor box (1) and on the side of the detection component (3) facing the direction of movement of the conveyor component (2); The lifting frame (4) is installed on one side of the conveyor box (1) and is set on one side of the through opening; The cylinder liner external straightening assembly (7) is set on one side of the conveyor box (1), and the cylinder liner external straightening assembly (7) is provided with the cylinder liner internal straightening assembly (8) and the support seat (9) on the upper and lower sides respectively. The translation frame (5) is set between the lifting frame (4) and the cylinder liner external straightening assembly (7); The cylinder liner moving assembly (6) is connected to the lifting frame (4) or the translation frame (5). The cylinder liner moving assembly (6) moves between the lifting frame (4) and the cylinder liner outer straightening assembly (7) based on the translation frame (5). After moving to one side of the lifting frame (4), the lifting frame (4) lifts it to the lower side of the through-hole of the transfer box (1) and takes the unqualified shell out of the transfer box (1) and transports it to the cylinder liner outer straightening assembly (7). The cylinder liner moving assembly (6) is also used to move the straightened shell to the lower side of the transfer box (1). The transfer box (1) is also used to move the straightened shell and the remaining qualified shell to the next processing equipment. The support base (9) provides support to the bottom of the shell during the straightening process; The detection component (3) includes: The first push rod (31) and the two sets of the first push rod (31) are respectively installed on both sides inside the conveyor box (1); Assembly frame (32), and multiple assembly frames (32) are respectively connected to a set of first push rods (31); Multiple assembly frames (32) on one side of the two sets of first push rods (31) are staggered; Pressure sensing modules (33), multiple pressure sensing modules (33) are installed in multiple rows on the side of the corresponding assembly frame (32); during testing, the housing to be tested contacts each pressure sensing module (33); An infrared identification module (34) is installed at the bottom of the inside of the conveyor box (1), and the infrared identification module (34) includes multiple identification units; After the outer shell is moved to the upper side of the infrared recognition module (34) based on the conveying component (2), each recognition unit detects the inner diameter of the outer shell; The cylinder liner moving assembly (6) includes a base (61), a lifting mechanism (62) is installed inside the base (61), and a second drive frame (63) is installed at the output end of the lifting mechanism (62). The upper side of the second drive frame (63) is provided with multiple output parts. Each output part moves synchronously with the center of the second drive frame (63) as the center, and each output part is equipped with a second support member (65).

2. A straightening apparatus for a hydraulic cylinder shell as defined in claim 1, wherein The transmission component (2) includes: The circulating belt (21) is connected to the conveyor box (1), and multiple equally spaced steering mechanisms (22) are installed on the outside of the circulating belt (21). The first drive frame (23) is connected to the steering mechanism (22), and the first drive frame (23) is provided with multiple output ends; First support member (24), and multiple first support members (24) are respectively connected to each output end of the corresponding first drive frame (23); When the first drive frame (23) is started, each first support member (24) moves synchronously based on the output end corresponding to the first drive frame (23).

3. A straightening apparatus for a hydraulic cylinder shell as defined in claim 1, wherein The lifting frame (4) and the translation frame (5) both include a first axial drive mechanism (41), and an electromagnetic adsorption mechanism (42) is installed at the output end of the first axial drive mechanism (41).

4. A straightening apparatus for a hydraulic cylinder shell as defined in claim 1, wherein The cylinder liner external correction assembly (7) includes a first assembly box (71), and a plurality of first cylinders (72) are installed inside the first assembly box (71). The plurality of first cylinders (72) are distributed in multiple rows and installed in a ring inside the first assembly box (71). Assembly plates (73) are installed between the output ends of each first cylinder (72). The edges of each adjacent assembly plate (73) abut against each other, and an annular area is formed between the inner walls of each assembly plate (73). When the outer shell is straightened, its outer wall is embedded in the annular area.

5. A straightening apparatus for a hydraulic cylinder shell as defined in claim 4, wherein The cylinder liner internal straightening assembly (8) includes a second assembly box (81), a second cylinder (82) is installed at the top of the second assembly box (81), and an inner diameter straightening component (83) is installed at the bottom of the second cylinder (82).

6. A straightening apparatus for a hydraulic cylinder shell as defined in claim 5, wherein The second assembly box (81) is equipped with a circulation frame (84) sleeved on the outside of the inner diameter straightener (83). The output end of the circulation frame (84) is equipped with a connecting frame (85). The connecting frame (85) is equipped with an oiling frame (87) on the side facing the inner diameter straightener (83) via a second push rod (86). Before correction, the oiling rack (87) applies lubricating oil to the outside of the inner diameter correction part (83).

7. A straightening apparatus for a hydraulic cylinder shell as defined in claim 3, wherein The base (61) is provided with magnetic attraction parts on the side facing the lifting frame (4) and the horizontal moving frame (5).

8. A straightening apparatus for a hydraulic cylinder shell as defined in claim 1, wherein The support base (9) includes a frame (92) and a reinforcing base (91). The frame (92) is installed on the lower side of the cylinder liner external straightening assembly (7), and the frame (92) is a frame structure. The frame (92) is equipped with a second axial drive mechanism (93) on both sides inside, and multiple support cylinders (94) are installed at the output ends of the two sets of second axial drive mechanisms (93). Multiple support cylinders (94) are used to lift the two sides of the reinforcement seat (91) and drive the reinforcement seat (91) to move between the lower side and one side of the cylinder liner outer straightening assembly (7) through the second axial drive mechanism (93); when the reinforcement seat (91) moves, it contacts the multiple support cylinders (94) and is lifted off the ground.

9. A method of straightening a straightening apparatus for a housing of a hydraulic cylinder according to any one of claims 1 to 8, characterized in that Includes the following steps: Step 1: Install the hydraulic cylinder shells with no external abnormalities onto the transmission assembly (2) of the straightening equipment in sequence, and move them to the detection assembly (3) in sequence through the transmission assembly (2) for shell detection; Step 2: When a defective shell is detected, the conveying assembly (2) moves it to the upper side of the through-hole and transfers the shell to the cylinder liner outer straightening assembly (7) via the cylinder liner moving assembly (6); Step 3: The support base (9) supports the shell transferred in Step 2 from the bottom, and the assembly plates (73) in the cylinder liner external straightening assembly (7) support and straighten the shell from the side; Step 4: The cylinder liner internal straightening assembly (8) is activated to straighten the outer shell from the inside; Step 5: The cylinder liner moving assembly (6) transports the housing after the correction in step 4 to the transfer box (1), which then moves it and the remaining qualified housings to the next processing equipment.

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