A rapid detection device for thin-wall cylinder liner shape

Abstract

This utility model discloses a rapid detection device for the shape and position of thin-walled cylinder liners, comprising: a U-shaped support with a base fixedly connected to its bottom; a flat turntable rotatably mounted on the inner wall of the bottom of the U-shaped support; a PLC controller fixedly mounted on the inner wall of the top of the U-shaped support; and a pressure-controlled lifting drive assembly mounted on the inner wall of the top of the U-shaped support. This utility model, through a series of structures, can automatically control and compress the end of the thin-walled cylinder liner, adaptively following its tilt, and automatically detecting the tilt angle. This allows for direct and rapid measurement of whether the end of the thin-walled cylinder liner is horizontal and the specific tilt angle, enabling personnel to clearly determine whether there is a tilt at the end of the thin-walled cylinder liner, thus distinguishing between good and defective products. It avoids uneven stress on the mating surfaces with the cylinder head and other related parts after assembly due to the tilt of the thin-walled cylinder liner end, which affects sealing and service life, thereby improving measurement efficiency and ease of operation.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled cylinder liner detection technology, specifically a rapid detection device for the shape and position of thin-walled cylinder liners. Background Technology

[0002] Thin-walled cylinder liners are a type of cylinder liner that is 1-3 mm thinner. They are key moving parts in internal combustion engines. The shape and position inspection of thin-walled cylinder liners includes the inner and outer diameters at both ends, straightness, and perpendicularity. The inner and outer diameters are usually measured by directly clamping with vernier calipers. Straightness is often checked by dial indicators and / or micrometers to see if there is any deviation at multiple points on a straight line. The inspection is relatively simple.

[0003] However, current methods for measuring perpendicularity still suffer from high complexity. The core of the measurement lies in determining whether the cylinder liner end is level, which typically requires checking the perpendicularity of the end to the shaft. The levelness of the cylinder liner end directly affects the uniformity of the mating surfaces with the cylinder head and other related parts after assembly. Existing measurement methods require multiple tools and have the following significant limitations:

[0004] It is difficult to directly and quickly measure whether the end of a thin-walled cylinder liner is horizontal and to measure its slope, resulting in low measurement efficiency and poor ease of operation. In view of this, this application proposes a rapid detection device for the shape and position of a thin-walled cylinder liner, aiming to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a rapid detection device for the shape and position of thin-walled cylinder liners, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid detection device for the shape and position of a thin-walled cylinder liner, comprising:

[0007] The U-shaped support has a base fixedly connected to its bottom;

[0008] A flat turntable is rotatably mounted on the bottom inner wall of a U-shaped support; the flat turntable is used to support the thin-walled cylinder liner when it is placed vertically.

[0009] The PLC controller is fixedly installed on the top inner wall of the U-shaped support;

[0010] A pressure-controlled lifting and lowering drive assembly is installed on the top inner wall of the U-shaped support, and a lifting plate is fixedly connected to its bottom end. The pressure-controlled lifting and lowering drive assembly is electrically connected to the PLC controller. The pressure-controlled lifting and lowering drive assembly is used to control the lifting plate to move downward and to control the pressure and squeeze it under the control of the PLC controller.

[0011] The pressure box has an open bottom, and multiple pressure rollers are rotatably installed at equal intervals between the inner walls of the front and rear sides of the pressure box.

[0012] The springs are arranged in four groups and connected in a ring at equal intervals between the top of the pressure box and the bottom of the lifting plate. The four springs are used to drive the pressure box to move down when the lifting plate moves down. When the pressure box moves down and causes multiple pressure rollers to squeeze the top of the thin-walled cylinder liner, the four springs are connected in a ring at equal intervals at four points to provide support. This allows the pressure box to tilt. When the top of the thin-walled cylinder liner is uneven and tilts, the force of continued downward pressure causes the pressure box to tilt and drive multiple pressure rollers to squeeze and adhere tightly to the top of the thin-walled cylinder liner until the tilt is uniform.

[0013] The counterweight angle measuring component is fixedly connected to the front side of the pressure box. The counterweight angle measuring component is used to adaptively measure the tilt angle when the pressure box tilts during clamping, so that personnel can clearly know whether the end of the thin-walled cylinder liner has tilted.

[0014] Preferably, the four springs are fixedly connected in a ring at equal intervals between the top of the pressure box and the bottom of the lifting plate by welding.

[0015] Preferably, the four springs are detachably connected between the top of the pressure box and the bottom of the lifting plate.

[0016] Preferably, the bottom of the lifting plate and the top of the pressure box are provided with rectangular slots, and rectangular blocks are movably installed in both rectangular slots. Four springs are fixedly connected between the two rectangular blocks in a ring at equal intervals. Threaded grooves are provided on both sides of the rectangular blocks, and first knob-type bolts are threaded in the threaded grooves. Threaded holes are provided on the inner walls of both sides of the rectangular slots, and the threaded holes are threaded onto the corresponding first knob-type bolts.

[0017] Preferably, the pressure control lifting drive assembly includes an electric telescopic rod, a pressure sensor, and four T-shaped guide rods. The electric telescopic rod is embedded and fixed on the top inner wall of the U-shaped support. The pressure sensor is fixedly installed between the extended end of the electric telescopic rod and the top of the lifting plate. The four T-shaped guide rods are rectangularly fixedly connected to the top of the lifting plate. The U-shaped support is slidably sleeved on the four T-shaped guide rods. The electric telescopic rod and the pressure sensor are both electrically connected to the PLC controller through flexible wires.

[0018] Preferably, the counterweight angle measuring component includes a semicircular protractor, a support shaft, a rotating sleeve, a counterweight, and a pointer. The semicircular protractor is fixedly installed on the front side of the pressure box, and an angle measuring scale is provided on the front side of the semicircular protractor. The support shaft is fixedly connected to the top of the front side of the semicircular protractor. The rotating sleeve is rotatably mounted on the support shaft. The counterweight is fixedly connected to the bottom of the rotating sleeve. The pointer is fixedly connected to the bottom of the counterweight and cooperates with the angle measuring scale.

[0019] Preferably, a threaded hole is provided on the top right side of the flat turntable, and a second knob-type bolt is threaded inside the threaded hole, with the bottom end of the second knob-type bolt in tight contact with the bottom inner wall of the U-shaped support.

[0020] Preferably, a circular through hole is provided on the bottom inner wall of the U-shaped support, a first bearing is fixedly sleeved in the circular through hole, a rotating shaft is fixedly connected at the bottom center of the flat turntable, and the inner ring of the first bearing is fixedly sleeved with the outer side of the rotating shaft.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. By combining the U-shaped support, PLC controller, lifting plate, pressure box, pressure roller, pressure control and lifting drive assembly, and counterweight angle measuring assembly, the thin-walled cylinder liner end can be automatically pressed and squeezed to adaptively follow the tilt of the end, and the tilt angle can be automatically detected. This allows for direct and rapid measurement of whether the thin-walled cylinder liner end is horizontal and the specific slope. This makes it easy for personnel to clearly know whether there is a tilt at the end of the thin-walled cylinder liner, so as to judge good and bad products. It avoids the phenomenon that uneven force on the mating surface with cylinder head and other related parts after assembly due to the tilt of the thin-walled cylinder liner end will affect the sealing and service life, thus improving measurement efficiency and ease of operation.

[0023] 2. By using a rectangular slot, rectangular block, threaded groove, threaded hole and first knob-type bolt in another way, the four springs can be disassembled and replaced at the same time. This avoids the phenomenon that the springs will age and weaken due to long-term use, which will seriously affect the use. The service life of the whole device is improved by the springs being disassembled and replaced.

[0024] This utility model, through a series of structures, can automatically control and compress the end of the thin-walled cylinder liner, adaptively following its tilt, and automatically detect the tilt angle. This allows for direct and rapid measurement of whether the end of the thin-walled cylinder liner is horizontal and the specific tilt angle. This makes it easy for personnel to clearly know whether there is a tilt at the end of the thin-walled cylinder liner, so as to judge good and bad products. It avoids the phenomenon that uneven force on the mating surface with the cylinder head and other related parts after assembly due to the tilt of the thin-walled cylinder liner end will affect the sealing and service life, thus improving measurement efficiency and ease of operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a rapid detection device for the shape and position of a thin-walled cylinder liner according to Embodiment 1 of this utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of the structure viewed from below;

[0027] Figure 3This is a schematic diagram of the front cross-sectional structure of a rapid detection device for the shape and position of a thin-walled cylinder liner according to Embodiment 1 of this utility model;

[0028] Figure 4 This is a schematic diagram of the counterweight-type angle measuring component of a rapid detection device for the shape and position of a thin-walled cylinder liner according to Embodiment 1 of this utility model.

[0029] Figure 5 This is a front sectional view of a rapid detection device for the shape and position of a thin-walled cylinder liner according to Embodiment 2 of this utility model.

[0030] In the diagram: 1. U-shaped support; 101. Flat turntable; 102. Second knob-type bolt; 2. PLC controller; 3. Electric telescopic rod; 301. Pressure sensor; 302. Lifting plate; 303. T-shaped guide rod; 4. Pressure box; 401. Pressure roller; 5. Semi-circular measuring disc; 501. Support shaft; 502. Rotating sleeve; 503. Counterweight; 504. Pointer; 6. Spring; 601. Rectangular locking block; 602. First knob-type bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] like Figures 1 to 4 As shown in this embodiment, a rapid detection device for the shape and position of a thin-walled cylinder liner includes:

[0034] U-shaped support 1, with a base fixedly connected to its bottom;

[0035] A flat turntable 101 is rotatably mounted on the bottom inner wall of a U-shaped support 1. A threaded hole is provided on the top right side of the flat turntable 101, and a second knob bolt 102 is threaded into the threaded hole. The bottom end of the second knob bolt 102 is pressed tightly against the bottom inner wall of the U-shaped support 1. A circular through hole is provided on the bottom inner wall of the U-shaped support 1, and a first bearing is fixedly fitted inside the circular through hole. A rotating shaft is fixedly connected to the bottom center of the flat turntable 101, and the inner ring of the first bearing is fixedly fitted to the outer side of the rotating shaft. The flat turntable 101 is used to support the thin-walled cylinder liner when it is placed vertically.

[0036] PLC controller 2 is fixedly installed on the top inner wall of U-shaped support 1;

[0037] The pressure-controlled lifting and lowering drive assembly is installed on the top inner wall of the U-shaped support 1, and a lifting plate 302 is fixedly connected to its bottom end. The pressure-controlled lifting and lowering drive assembly is electrically connected to the PLC controller 2. The pressure-controlled lifting and lowering drive assembly is used to drive the lifting plate 302 to move down and control the pressure to tighten it under the control of the PLC controller 2.

[0038] The pressure box 4 has an open bottom, and multiple pressure rollers 401 are rotatably mounted at equal intervals between the front and rear inner walls of the pressure box 4. Multiple second bearings are fixedly connected to the front and rear inner walls of the pressure box 4, and pins are fixedly connected to the front and rear ends of the pressure rollers 401. The inner ring of the second bearing is fixedly fitted to the outer side of the corresponding pin, and the pins and second bearings are used to achieve the effect of rotating the pressure rollers 401.

[0039] Springs 6, consisting of four sets connected in a ring at equal intervals between the top of the pressure box 4 and the bottom of the lifting plate 302; the four springs 6 are used to drive the pressure box 4 to move down when the lifting plate 302 moves down. When the pressure box 4 moves down and drives multiple pressure rollers 401 to squeeze the top of the thin-walled cylinder liner, the four springs 6 are connected in a ring at equal intervals at four points with uniform elastic support, which can provide the pressure box 4 with the condition to tilt. When the top of the thin-walled cylinder liner is uneven and tilts, the force of continued downward pressure causes the pressure box 4 to tilt and drive multiple pressure rollers 401 to squeeze and stick tightly to the top of the thin-walled cylinder liner until the tilt is consistent;

[0040] The counterweight angle measuring component is fixedly connected to the front side of the pressure box 4. The counterweight angle measuring component is used to adaptively measure the tilt angle when the pressure box 4 tilts during compression, so that personnel can clearly know whether the end of the thin-walled cylinder liner has tilted.

[0041] Furthermore, four springs 6 are fixedly connected in a ring at equal intervals between the top of the pressure box 4 and the bottom of the lifting plate 302 by welding.

[0042] Furthermore, such as Figure 1 and 3 As shown, the pressure control lifting drive assembly includes an electric telescopic rod 3, a pressure sensor 301, and four T-shaped guide rods 303. The electric telescopic rod 3 is embedded and fixed on the top inner wall of the U-shaped support 1. The pressure sensor 301 is fixedly installed between the extended end of the electric telescopic rod 3 and the top of the lifting plate 302. The four T-shaped guide rods 303 are rectangularly fixedly connected to the top of the lifting plate 302. The U-shaped support 1 is slidably sleeved on the four T-shaped guide rods 303. The electric telescopic rod 3 and the pressure sensor 301 are electrically connected to the PLC controller 2 through flexible wires.

[0043] In this embodiment, the top of the U-shaped support 1 is provided with four vertical guide holes that are respectively slidably fitted onto the outer side of the corresponding T-shaped guide rod 303, so as to allow the T-shaped guide rod 303 to pass through and to guide its vertical sliding.

[0044] In this implementation scheme, the electric telescopic rod 3, pressure sensor 301, and four T-shaped guide rods 303 work together. The PLC controller 2 pre-sets the pressure value for closing the electric telescopic rod 3 based on the required clamping force during testing. This pressure value overcomes the pressure of the four springs 6 on the horizontal support state of the pressure box 4, providing a downward pressure that allows the pressure box 4 to adaptively rotate and tilt on the inclined surface during compression. This pressure can be set according to the different springs 6 used. When the operator starts the electric telescopic rod 3 in the forward direction, it drives the pressure sensor 301 to move downwards. The pressure sensor 301 drives the lifting plate 302 to move downwards, and the lifting plate 302 drives the four T-shaped guide rods 303... The T-shaped guide rod 303 slides downward in the vertical guide hole on the U-shaped support 1 to perform vertical guiding work. When the lifting plate 302 moves down to the point where it can no longer move down or is blocked by damping, the pressure sensor 301 detects the squeezing force continued to be applied by the electric telescopic rod 3 and converts it into a standard electrical signal, which is transmitted to the PLC controller 2 through a flexible wire. The PLC controller 2 converts the received standard electrical signal into an actual pressure value through analog-to-digital conversion. When the preset pressure value is reached, the PLC controller 2 controls the electric telescopic rod 3 to close automatically, thereby driving the lifting plate 302 to move down and controlling the pressure to tighten it. Then, the pressure box 4 is controlled and tightened downward through the four springs 6 in sequence.

[0045] Furthermore, such as Figure 1 and 4 As shown, the counterweight-type angle measuring assembly includes a semicircular protractor 5, a support shaft 501, a rotating sleeve 502, a counterweight 503, and a pointer 504. The semicircular protractor 5 is fixedly installed on the front side of the pressure box 4. An angle measuring scale line is provided on the front side of the semicircular protractor 5. The support shaft 501 is fixedly connected to the top of the front side of the semicircular protractor 5. The rotating sleeve 502 is rotatably sleeved on the support shaft 501. The counterweight 503 is fixedly connected to the bottom of the rotating sleeve 502. The pointer 504 is fixedly connected to the bottom of the counterweight 503 and cooperates with the angle measuring scale line.

[0046] In this embodiment, a third bearing is fixedly fitted inside the rotating sleeve 502, and the inner ring of the third bearing is fixedly fitted to the outer side of the support shaft 501, so as to achieve the effect of rotating the rotating sleeve 502.

[0047] In this implementation scheme, the semicircular protractor 5, support shaft 501, rotating sleeve 502, counterweight 503, and pointer 504 work together. When the pressure box 4 tilts during clamping, the pressure box 4 drives the semicircular protractor 5 to tilt as a whole. Under the weight of the counterweight 503, it always drives the pointer 504 to remain vertical. When the semicircular protractor 5 rotates and tilts, it causes the support shaft 501 to rotate adaptively within the rotating sleeve 502. At this time, the position of the pointer 504 on the protractor scale changes. By observing the position of the protractor scale indicated by the pointer 504, it is possible to determine whether there is a tilt or the tilt angle. This achieves the effect of rapid and accurate measurement of the end position of the thin-walled cylinder liner, allowing personnel to clearly know whether there is a tilt at the end of the thin-walled cylinder liner, so as to judge good and bad products. This avoids the phenomenon that uneven force on the mating surface with the cylinder head and other related parts after assembly due to the tilt of the thin-walled cylinder liner end, which affects the sealing and service life.

[0048] It should be noted that the PLC controller 2 preferably adopts a Siemens S7-200SMART programmable controller with an integrated analog input module, which can receive the standard electrical signal output by the pressure sensor 301 and convert it into the actual pressure value through the integrated analog-to-digital converter; the pressure sensor 301 preferably adopts a Transcell BSS series plate (pressure) load cell; both the electric telescopic rod 3 and the pressure sensor 301 are electrically connected to the PLC controller 2 through flexible wires. The technology of establishing an electrical connection controlled by the PLC controller 2 through direct connection with flexible wires is a mature and well-known method of conventional wire control in existing controllers, and will not be described in detail here;

[0049] Regarding power supply: Since this device is used for production, processing and testing applications, there is no lack of power supply measures at the production, processing and testing site. All electrical components of this device are connected to the local mains power and are connected to the power input interface of each device through conventional power distribution devices such as circuit breakers, contactors, and power modules (not marked in the figure) to form a complete power supply circuit. This power supply scheme is a conventional power distribution method for industrial equipment, and all are conventional, mature and well-known methods, so it will not be described in detail here.

[0050] This embodiment can automatically control the pressure to compress the thin-walled cylinder liner end, adaptively follow its tilt, and automatically detect the tilt angle to directly and quickly measure whether the thin-walled cylinder liner end is horizontal and measure the specific tilt angle. This allows personnel to clearly know whether there is a tilt at the end of the thin-walled cylinder liner, so as to judge good and bad products. It avoids the phenomenon that uneven force on the mating surface with cylinder head and other related parts after assembly due to the tilt of the thin-walled cylinder liner end will affect the sealing and service life, thus improving measurement efficiency and operation convenience.

[0051] The usage method of this embodiment is as follows: When using the rapid detection device for the shape and position of thin-walled cylinder liners, the thin-walled cylinder liner to be measured is placed on the top of the flat turntable 101. The pressure value for closing the electric telescopic rod 3 is preset using the PLC controller 2 according to the clamping force requirements during detection. This pressure value is used to overcome the pressure of the four springs 6 on the horizontal support state of the pressure box 4, so as to provide the pressure box 4 with an adaptive downward pressure that allows it to rotate and tilt on the inclined surface during compression. This pressure can be set according to the different springs 6 used. The operator starts the electric telescopic rod 3 in the forward direction, causing it to drive the pressure sensor 301 to move downward. The pressure sensor 301 drives the lifting plate 302 to move downward. The lifting plate 302 drives the four T-shaped guide rods 303 to slide downward in the vertical guide holes on the U-shaped support 1 to perform vertical guiding work. The lifting plate 302 drives the pressure box 4 to move downward through the four springs 6. When the pressure box 4 drives multiple pressure rollers 401 to move downward and compresses the top of the thin-walled cylinder liner, the four springs 6 are connected in a ring with equal spacing at four points for uniform elastic support, providing the pressure box 4 with an adjustable tilting force. Under the condition that the top of the thin-walled cylinder liner is uneven and tilts, the continued downward pressure causes the pressure box 4 to tilt and drive multiple pressure rollers 401 to press tightly against the top of the thin-walled cylinder liner until the tilt is uniform. When the pressure box 4 tilts, it causes the spring 6 to tilt slightly. The rotatable nature of the pressure rollers 401 avoids hard compression friction with the thin-walled cylinder liner during compression. During compression, the pressure box 4 is blocked and restricted by the thin-walled cylinder liner. The continuously moving lifting plate 302 also compresses the spring 6. The four springs 6 are used to tighten the pressure box 4 downwards. In the intermediate force transmission process, when the lifting plate 302 moves down to the point where it can no longer move down or is blocked by damping, the pressure sensor 301 detects the continued squeezing force applied by the electric telescopic rod 3 and converts it into a standard electrical signal, which is transmitted to the PLC controller 2 through a flexible wire. The PLC controller 2 converts the received standard electrical signal into an actual pressure value through analog-to-digital conversion. When the preset pressure value is reached, the PLC controller 2 controls the electric telescopic rod 3 to automatically close, thereby achieving the effect of driving multiple pressure rollers 401 downward to press tightly against the top of the thin-walled cylinder liner.

[0052] When the pressure box 4 tilts during compression, it drives the semi-circular protractor 5 to tilt as a whole. Under the weight of the counterweight 503, the pointer 504 is always kept vertical with the pointer pointing downwards. When the semi-circular protractor 5 rotates and tilts, it drives the support shaft 501 to rotate adaptively within the rotating sleeve 502. At this time, the position of the pointer 504 on the protractor scale changes. By observing the position of the protractor scale indicated by the pointer 504, it is possible to determine whether there is a tilt or the tilt angle. By automatically controlling the pressure and clamping to adaptively follow the tilt of the thin-walled cylinder liner end and automatically detect the tilt angle, it is convenient to directly and quickly measure whether the end of the thin-walled cylinder liner is horizontal and measure the specific slope. This allows personnel to clearly know whether there is a tilt at the end of the thin-walled cylinder liner, so as to judge good and bad products. It avoids the phenomenon that uneven force on the mating surface with the cylinder head and other related parts after assembly due to the tilt of the thin-walled cylinder liner end, which affects the sealing and service life. It improves measurement efficiency and ease of operation.

[0053] In addition, when another direction test is required after testing in one direction, the electric telescopic rod 3 is activated in the reverse direction to drive the upper structure and pressure box 4 to move upward and reset. Then, the second knob bolt 102 is rotated in the reverse direction to separate it from the U-shaped support 1, releasing the lock on the flat turntable 101. Then, the flat turntable 101 can be rotated 90 degrees, causing the thin-walled cylinder liner to rotate 90 degrees, so that its top end rotates from the front-back direction to the left-right direction. The second knob bolt 102 is rotated in the forward direction to lock the flat turntable 101. The pressure test can then be performed again in the same way as the above test.

[0054] Example 2

[0055] like Figure 5 As shown, this embodiment differs from Embodiment 1 in that: four springs 6 are detachably connected between the top of the pressure box 4 and the bottom of the lifting plate 302. Rectangular slots are provided at the bottom of the lifting plate 302 and the top of the pressure box 4. Rectangular blocks 601 are movably fitted in both rectangular slots. The four springs 6 are fixedly connected in a ring at equal intervals between the two rectangular blocks 601. Threaded grooves are provided on both sides of the rectangular blocks 601. First knob bolts 602 are threaded in the threaded grooves. Threaded holes are provided on the inner walls of both sides of the rectangular slots. The threaded holes are threaded onto the corresponding first knob bolts 602.

[0056] This embodiment allows for the simultaneous disassembly and replacement of the four springs 6, avoiding the phenomenon that the springs 6 will age and weaken due to excessive use over time. The lifespan of the entire device is improved by making the springs 6 detachable and replaceable.

[0057] The usage method of this embodiment is as follows: Unlike Embodiment 1, it also has the following functions: Utilizing the provided rectangular slots, rectangular blocks 601, threaded grooves, threaded holes, and first knob-type bolts 602, the two rectangular slots are used to position the two rectangular blocks 601; the four first knob-type bolts 602, in conjunction with the four threaded grooves, are used to lock the two rectangular blocks 601; the two rectangular blocks 601 are used to connect and support the four springs 6; subsequently, the four first knob-type bolts 602 are rotated in the reverse direction to separate them from their corresponding threaded grooves, thus releasing the torque. To lock the rectangular locking block 601, the pressure box 4 is moved downwards to separate from the lower rectangular locking block 601. Then, the spring 6 is moved downwards to separate the upper rectangular locking block 601 from the upper rectangular slot, thus disassembling the four springs 6. During installation, the rectangular locking block 601 is inserted into the corresponding rectangular slot, and then locked using the first knob-type bolt 602. This facilitates the simultaneous disassembly and replacement of the four springs 6, preventing the springs from aging over time and causing a significant weakening of their elasticity, which would severely affect their use. The detachable and replaceable springs 6 improve the service life of the entire device.

[0058] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid detection device for the shape and position of a thin-walled cylinder liner, comprising a U-shaped support (1), characterized in that: include: U-shaped support (1), with a base fixedly connected to its bottom; A flat turntable (101) is rotatably mounted on the bottom inner wall of a U-shaped support (1); The PLC controller (2) is fixedly installed on the top inner wall of the U-shaped support (1); The pressure-controlled lifting drive assembly is installed on the top inner wall of the U-shaped support (1), and a lifting plate (302) is fixedly connected to its bottom end. The pressure-controlled lifting drive assembly is electrically connected to the PLC controller (2). The pressure box (4) has an open bottom and multiple pressure rollers (401) are rotatably installed at equal intervals between the front and rear inner walls of the pressure box (4). Springs (6) are in four groups and are connected in a ring at equal intervals between the top of the pressure box (4) and the bottom of the lifting plate (302); The counterweight angle measuring component is fixedly connected to the front side of the pressure box (4).

2. The rapid detection device for the shape and position of a thin-walled cylinder liner according to claim 1, characterized in that: The four springs (6) are fixedly connected in a ring at equal intervals by welding between the top of the pressure box (4) and the bottom of the lifting plate (302).

3. The rapid detection device for the shape and position of a thin-walled cylinder liner according to claim 1, characterized in that: The four springs (6) are detachably connected between the top of the pressure box (4) and the bottom of the lifting plate (302).

4. The rapid detection device for the shape and position of a thin-walled cylinder liner according to claim 3, characterized in that: The bottom of the lifting plate (302) and the top of the pressure box (4) are provided with rectangular slots. Rectangular blocks (601) are movably installed in both rectangular slots. Four springs (6) are fixedly connected between the two rectangular blocks (601) in a ring with equal spacing. Threaded grooves are provided on both sides of the rectangular blocks (601). First knob bolts (602) are threaded in the threaded grooves. Threaded holes are provided on the inner walls of both sides of the rectangular slots. The threaded holes are threaded on the corresponding first knob bolts (602).

5. The rapid detection device for the shape and position of a thin-walled cylinder liner according to claim 1, characterized in that: The pressure control lifting drive assembly includes an electric telescopic rod (3), a pressure sensor (301), and four T-shaped guide rods (303). The electric telescopic rod (3) is embedded and fixed on the top inner wall of the U-shaped support (1). The pressure sensor (301) is fixedly installed between the extended end of the electric telescopic rod (3) and the top of the lifting plate (302). The four T-shaped guide rods (303) are rectangularly fixedly connected to the top of the lifting plate (302). The U-shaped support (1) is slidably sleeved on the four T-shaped guide rods (303). The electric telescopic rod (3) and the pressure sensor (301) are both electrically connected to the PLC controller (2) through flexible wires.

6. The rapid detection device for the shape and position of a thin-walled cylinder liner according to claim 1, characterized in that: The counterweight angle measuring component includes a semicircular protractor (5), a support shaft (501), a rotating sleeve (502), a counterweight (503), and a pointer (504). The semicircular protractor (5) is fixedly installed on the front side of the pressure box (4). An angle measuring scale line is provided on the front side of the semicircular protractor (5). The support shaft (501) is fixedly connected to the top of the front side of the semicircular protractor (5). The rotating sleeve (502) is rotatably sleeved on the support shaft (501). The counterweight (503) is fixedly connected to the bottom of the rotating sleeve (502). The pointer (504) is fixedly connected to the bottom of the counterweight (503) and cooperates with the angle measuring scale line.

7. The rapid detection device for the shape and position of a thin-walled cylinder liner according to claim 1, characterized in that: The top right side of the flat turntable (101) is provided with a threaded hole, and a second knob bolt (102) is threaded inside the threaded hole. The bottom end of the second knob bolt (102) is pressed tightly against the bottom inner wall of the U-shaped support (1).

8. The rapid detection device for the shape and position of a thin-walled cylinder liner according to claim 1, characterized in that: A circular through hole is provided on the bottom inner wall of the U-shaped support (1), and a first bearing is fixedly sleeved in the circular through hole. A rotating shaft is fixedly connected at the bottom center of the flat turntable (101), and the inner ring of the first bearing is fixedly sleeved with the outer side of the rotating shaft.

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