Cylinder piston rod axis perpendicularity measuring device

Abstract

The invention discloses a cylinder piston rod axis perpendicularity measuring device, and relates to the technical field of axis perpendicularity measurement. An air cylinder piston rod axis perpendicularity measuring device comprises a machine base, a cover plate is rotatably connected to the machine base, an electric sliding rail is fixedly connected to the machine base, a moving block is slidably connected to the electric sliding rail, a connecting frame is rotatably connected to the moving block, and the connecting frame is composed of an upper section and a lower section which are rotatably connected. And the top end of the connecting frame is rotationally connected with a measurer. The piston rod is fixed between the rotating disc and the fixed top frame, the measurer is controlled to horizontally move to measure the piston rod, and when an abnormality is measured, the applicator moves downwards to be in contact with the piston rod to mark, so that a defect part is quickly positioned and treated; the rotating disc rotates to control the piston rod to rotate and switch the position in contact with the measurer, so that the other side of the piston rod is measured, more comprehensive data is obtained, and the measurement precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of axis perpendicularity measurement, and in particular to a device for measuring the axis perpendicularity of a cylinder piston rod. Background Art

[0002] Measuring the axis perpendicularity of a cylinder piston rod is an important step to ensure the stable operation of the cylinder during work. Poor perpendicularity may lead to an increase in friction between the piston rod and the cylinder barrel, thereby affecting the performance, service life, and working reliability of the equipment.

[0003] When measuring the axis perpendicularity of a cylinder piston rod, a dial indicator can be used for measurement. However, there are some problems with existing measuring instruments during use: one is the single measurement point. Traditional measuring devices generally can only measure at a fixed position, which may cause the measurement results to not fully reflect the true state of the entire piston rod axis; the other is the lack of an immediate feedback mechanism. When a perpendicularity deviation is detected, it is difficult for the existing technology to immediately identify the specific problem area, resulting in the complication of the subsequent processing process.

[0004] To solve the above problems, we propose a device for measuring the axis perpendicularity of a cylinder piston rod. This axis perpendicularity measuring device can perform multiple measurements on the piston rod axis at different angles and positions, thereby obtaining more comprehensive data, improving the measurement accuracy. And once it detects that the perpendicularity exceeds the preset standard, this device will automatically mark the problematic workpiece to quickly locate and process the defective part. Summary of the Invention

[0005] To overcome the shortcomings of existing measuring instruments, such as single measurement points and lack of an immediate feedback mechanism during use, the present invention provides a device for measuring the axis perpendicularity of a cylinder piston rod. This axis perpendicularity measuring device can perform multiple measurements on the piston rod axis at different angles and positions, thereby obtaining more comprehensive data, improving the measurement accuracy. And once it detects that the perpendicularity exceeds the preset standard, this device will automatically mark the problematic workpiece to quickly locate and process the defective part.

[0006] A device for measuring the perpendicularity of the axis of a cylinder piston rod, comprising a base, on which a cover plate is rotatably connected, an electric slide rail is fixedly connected to the base, a moving block is slidably connected to the electric slide rail, a connecting frame is rotatably connected to the moving block, the connecting frame is composed of an upper section and a lower section which are rotatably connected, a measuring device is rotatably connected to the top end of the connecting frame, a fixed top frame is fixedly connected to one side of the base, two longitudinally symmetric fixing plates are fixedly connected to the fixed top frame, a middle plate is slidably connected to the side of the two fixing plates close to each other, a first spring is connected between the middle plate and the fixing plate, the middle plate is arc-shaped, a sliding top frame is slidably connected to the other side of the base, an adjusting rod is rotatably connected in the base, the adjusting rod is threadedly connected to the sliding top frame, and further comprises a mounting frame, the mounting frame is fixedly connected to the top end of the connecting frame, a pressing plate is slidably connected to the mounting frame, an applicator is fixedly connected to the bottom end of the pressing plate, a distance sensor is fixedly connected to the measuring rod of the measuring device, a micro electric push rod is fixedly connected to the mounting frame, the micro electric push rod is electrically connected to the distance sensor, the telescopic end of the micro electric push rod is fixedly connected to the pressing plate, an extrusion block is fixedly connected to the moving block, a toothed rack is slidably connected to the sliding top frame, the movement of the extrusion block is in extrusion cooperation with the toothed rack, a elastic sheet is connected between the bottom end of the toothed rack and the sliding top frame, a rotating disk is rotatably connected to the sliding top frame, the rotating disk and the fixed top frame are used for clamping the piston rod, a gear is connected to the rotating disk through a one-way bearing, the gear meshes with the toothed rack, a stabilizing component for keeping the measuring device stable during movement is arranged on the base and the connecting frame, and a comparison component for comparing the placement position of the piston rod is arranged on the sliding top frame and the fixed top frame.

[0007] Optionally, roller shafts are rotatably connected to the middle plate at equally spaced intervals.

[0008] Optionally, a pointer is fixedly connected to the sliding top frame, and scale lines for cooperating with the pointer are arranged at the top end of the base.

[0009] Optionally, the stabilizing component includes limiting blocks, the limiting blocks are fixedly connected to the top end of the base, diamond-shaped blocks are fixedly connected to the rotational connection between the lower section of the connecting frame and the moving block, the rotational connection between the lower section and the upper section of the connecting frame, and the rotational connection between the measuring device and the upper section of the connecting frame, first air cylinders are fixedly connected to the sides of the lower section of the connecting frame, the upper section of the connecting frame and the moving block close to the diamond-shaped blocks, a piston end of the first air cylinder is fixedly connected to a clamping block adapted to the diamond-shaped block, an air guide pipe is communicated between the three first air cylinders, a second air cylinder is fixedly connected to the side of the moving block close to the limiting block, the lower end of the air guide pipe is communicated with the second air cylinder, a piston end of the second air cylinder is in extrusion cooperation with the limiting block, and a second spring is connected between the piston end of the second air cylinder and the cylinder body.

[0010] Optionally, the comparison component includes a guide ring, the guide ring is fixedly connected to the sides of the fixed top frame and the sliding top frame away from each other, a mounting plate frame is slidably connected to the guide ring, a comparison rod is fixedly connected to the mounting plate frame, and a clamping rod is threadedly connected to the mounting plate frame.

[0011] Optionally, it further includes a support assembly for supporting the middle part of the piston rod. The support assembly includes a measuring rack, the measuring rack is fixedly connected to the top end of the machine base, equally spaced support frames are slidably connected to the measuring rack, equally spaced screw rods are rotatably connected to the measuring rack, and the screw rods are threadedly connected to the support frames.

[0012] Optionally, it further includes a cleaning assembly for cleaning the surface of the piston rod. The cleaning assembly includes an elastic frame, the elastic frame is fixedly connected to the moving block, a brush block is fixedly connected to the top end of the elastic frame, a winding box is fixedly connected to one side of the machine base away from the elastic frame, a pull rope is connected in the winding box through a scroll spring, and the tail end of the pull rope passes through the middle part of the elastic frame and is connected to the top end of the elastic frame.

[0013] The beneficial effects of the present invention are as follows: 1. Fix the piston rod between the fixed rotating disc and the fixed top frame, then control the measuring rod of the measuring device to contact the surface of the rod of the piston rod, and then control the moving block to move through the electric slide rail to drive the measuring device to move horizontally to the left to measure the piston rod. If the piston rod is offset and not perpendicular, the applicator will move downward to contact the piston rod for marking. When the measuring device measures to the edge position of the piston rod, the extrusion block and the tooth rack are squeezed and matched to control the rotation of the rotating disc, thereby driving the rotation of the piston rod to switch the position in contact with the measuring device, and the moving block drives the measuring device to move to the right to measure the other side of the piston rod. In this way, the axis of the piston rod can be measured multiple times at different angles and positions, so as to obtain more comprehensive data, improve the measurement accuracy, and once it is detected that the perpendicularity exceeds the preset standard, it can automatically mark the problematic position to quickly locate and process the defective part.

[0014] 2. When the moving block drives the measuring device to move and measure, the second air cylinder is inflated so that the clamping block fits the rhombic block, thereby restricting the rotation of the connecting frame and the measuring device, so that the measuring device maintains the adjusted position angle for movement, and avoids the influence of the angle or position offset of the measuring device on the measurement accuracy during the movement process.

[0015] 3. After fixing the piston rod between the fixed top frame and the rotating disc, by comparing the piston rod with the comparison rod, observe whether the piston rod is parallel to the comparison rod, so as to ensure that the initial fixed position of the piston rod is in a horizontal state.

[0016] 4. The support frames at the same height can support the middle section position of the piston rod, further ensuring the initial fixed state of the piston rod and ensuring its horizontal placement.

[0017] 5. After the brush block contacts the piston rod and continues to move, the surface of the piston rod can be cleaned to avoid impurities on the surface of the piston rod affecting the measurement accuracy. Description of the Drawings

[0018] Figure 1 Schematic three-dimensional structure diagram of the present invention.

[0019] Figure 2 Schematic three-dimensional structure diagram of components such as the moving block, measuring device, and connecting frame of the present invention.

[0020] Figure 3 Schematic three-dimensional structure diagram of components such as the sliding top frame, adjusting rod, and piston rod of the present invention.

[0021] Figure 4 Schematic three-dimensional structure diagram of components such as the extrusion block, tooth rack, gear, and rotating disc of the present invention.

[0022] Figure 5 Schematic three-dimensional structure diagram of components such as the mounting bracket, applicator, and pressing plate of the present invention.

[0023] Figure 6 Schematic three-dimensional structure diagram of components such as the limiting block, diamond-shaped block, and first air cylinder of the present invention.

[0024] Figure 7 Schematic three-dimensional structure diagram of components such as the clamping block, air duct, and second air cylinder of the present invention.

[0025] Figure 8 Schematic three-dimensional structure diagram of components such as the mounting plate frame, comparison rod, and clamping rod of the present invention.

[0026] Figure 9 Schematic three-dimensional structure diagram of the mounting plate frame, comparison rod, clamping rod, and guide ring of the present invention.

[0027] Figure 10 Schematic three-dimensional structure diagram of components such as the support frame, screw rod, and measuring frame of the present invention.

[0028] Figure 11 Exploded structure diagram of the support frame, screw rod, and measuring frame of the present invention.

[0029] Figure 12 Schematic three-dimensional structure diagram of components such as the elastic frame, pull rope, and brush block of the present invention.

[0030] Marks in the attached drawings: 1: Machine base, 101: Cover plate, 11: Electric slide rail, 1101: Moving block, 12: Measuring device, 13: Connecting frame, 14: Fixed top frame, 1401: Fixed plate, 1402: First spring, 1403: Centering plate, 15: Sliding top frame, 1501: Adjusting rod, 16: Piston rod, 17: Mounting frame, 18: Applicator, 19: Pressing plate, 1901: Distance sensor, 110: Micro electric push rod, 111: Extrusion block, 112: Elastic piece, 113: Rack, 114: Gear, 115: Rotating disc, 2: Limit block, 21: Rhombic block, 22: First air cylinder, 23: Clamping block, 24: Air duct, 25: Second air cylinder, 26: Second spring, 3: Mounting plate frame, 31: Comparison rod, 32: Clamping rod, 33: Guide ring, 4: Support frame, 41: Screw rod, 42: Measuring frame, 5: Elastic frame, 51: Pulling rope, 52: Brush block, 53: Winding box. Detailed implementation mode

[0031] The following describes the implementation mode of the present invention with reference to the attached drawings.

[0032] Embodiment 1: A device for measuring the perpendicularity of the axis of a cylinder piston rod, as Figures 1 - 5As shown in the figure, it includes a machine base 1, a cover plate 101, an electric slide rail 11, a moving block 1101, a measuring device 12, a connecting frame 13, a fixed top frame 14, a fixing plate 1401, a first spring 1402, a centering plate 1403, a sliding top frame 15, an adjusting rod 1501, a mounting bracket 17, an applicator 18, a pressing plate 19, a distance sensor 1901, a micro electric push rod 110, a pressing block 111, a spring piece 112, a rack 113, a gear 114, a rotating disk 115, a stabilizing component and a comparison component. The cover plate 101 is rotatably connected to the upper rear part of the machine base 1. The electric slide rail 11 is fixedly connected to the upper rear part of the machine base 1. The moving block 1101 is slidably connected to the electric slide rail 11. The connecting frame 13 is rotatably connected to the moving block 1101. The connecting frame 13 is composed of an upper section and a lower section that are rotatably connected. The measuring device 12 is rotatably connected to the top end of the connecting frame 13. The fixed top frame 14 is fixedly connected to the right part of the machine base 1. Two fixing plates 1401 that are symmetric in the front and rear are fixedly connected to the upper part of the fixed top frame 14. The centering plate 1403 is slidably connected to the side of the front and rear fixing plates 1401 that are close to each other. Two first springs 1402 are connected between the centering plate 1403 and the fixing plates 1401. The centering plate 1403 is arc-shaped, and rollers are rotatably connected to the centering plate 1403 at equal intervals. The sliding top frame 15 is slidably connected to the left part of the machine base 1. A pointer is fixedly connected to the right part of the sliding top frame 15. A scale line that cooperates with the pointer is provided on the upper left side of the machine base 1. The adjusting rod 1501 is rotatably connected inside the machine base 1. The adjusting rod 1501 is threadedly connected to the sliding top frame 15. The mounting bracket 17 is fixedly connected to the top end of the connecting frame 13. The pressing plate 19 is slidably connected to the upper part of the mounting bracket 17. The applicator 18 is fixedly connected to the bottom end of the pressing plate 19. The distance sensor 1901 is fixedly connected to the measuring rod of the measuring device 12. The micro electric push rod 110 is fixedly connected to the upper part of the mounting bracket 17. The micro electric push rod 110 is electrically connected to the distance sensor 1901. The telescopic end of the micro electric push rod 110 is fixedly connected to the pressing plate 19. The pressing block 111 is fixedly connected to the moving block 1101. The rack 113 is slidably connected to the upper part of the sliding top frame 15. The pressing block 111 moves leftward to be in pressing cooperation with the rack 113. A spring piece 112 is connected between the lower side of the rack 113 and the sliding top frame 15. The rotating disk 115 is rotatably connected to the upper part of the sliding top frame 15. The rotating disk 115 and the fixed top frame 14 are used to clamp the piston rod 16. The gear 114 is connected to the rotating disk 115 through a one-way bearing. The gear 114 meshes with the rack 113. A stabilizing component for keeping the measuring device 12 stable during movement is provided on the machine base 1 and the connecting frame 13. A comparison component for comparing the placement position of the piston rod 16 is provided on the fixed top frame 14 and the sliding top frame 15.

[0033] When using this device, the staff places the piston rod 16 to be measured between the rotating disc 115 and the fixed top frame 14, making the piston end of the piston rod 16 contact the fixed top frame 14. Under the synchronous expansion and contraction of the first spring 1402, the centering plate 1403 can slide and fit the piston end of the piston rod 16. The piston end of the piston rod 16 is limited by the front and rear centering plates 1403 to be centered. Then, the sliding top frame 15 is driven to slide left and right by the adjusting rod 1501, and then the position of the rotating disc 115 is adjusted by moving it left and right to support the rod end of the piston rod 16. The piston rod 16 is clamped by the cooperation of the rotating disc 115 and the fixed top frame 14. Under the action of the pointer and the scale line, it is convenient for the staff to accurately adjust the position of the sliding top frame 15. After the piston rod 16 is clamped, the staff adjusts the position of the measuring device 12 by rotating the connecting frame 13, making the measuring rod of the measuring device 12 contact the rod surface of the piston rod 16. Then, the moving block 1101 is controlled to move left by the electric slide rail 11. The leftward movement of the moving block 1101 drives the measuring device 12 to move horizontally leftward through the connecting frame 13. During the horizontal leftward movement of the measuring device 12, it can detect whether the rod of the piston rod 16 is offset to detect the axis perpendicularity of the piston rod 16. When the moving block 1101 drives the connecting frame 13 and the measuring device 12 to move for measurement, the mounting frame 17 also drives the applicator 18 to move synchronously with the connecting frame 13 and the measuring device 12. If there is an offset, the measuring rod of the measuring device 12 will expand and contract. At this time, the distance sensor 1901 will control the micro electric push rod 110 to shorten. The shortening of the micro electric push rod 110 drives the pressing plate 19 to move downward. The downward movement of the pressing plate 19 drives the applicator 18 to move downward to contact the piston rod 16 for marking. After the measuring rod of the measuring device 12 returns to zero, the distance sensor 1901 controls the micro electric push rod 110 to extend, driving the pressing plate 19 and the applicator 18 to move upward to reset. The synchronous movement of the applicator 18 and the measuring device 12 can accurately mark the offset position and length of the piston rod 16. When the moving block 1101 drives the measuring device 12 to move to the edge position of the piston rod 16, the extrusion block 111 also moves with the moving block 1101 to contact the tooth rack 113, and then squeezes the tooth rack 113 to slide downward. The elastic piece 112 deforms. The downward sliding of the tooth rack 113 drives the gear 114 to rotate. The rotation of the gear 114 drives the rotating disc 115 to rotate. The rotation of the rotating disc 115 drives the piston rod 16 to rotate and switch the position in contact with the measuring device 12. When the piston rod 16 rotates, the rollers on the centering plate 1403 also rotate, facilitating the rotation and surface change of the piston rod 16. At this time, the electric slide rail 11 controls the moving block 1101 to move rightward. The rightward movement of the moving block 1101 drives the measuring device 12 to move rightward to measure the other side of the piston rod 16. The extrusion block 111 moves with the moving block 1101 and separates from the tooth rack 113. At this time, under the action of the reset of the elastic piece 112, the tooth rack 113 slides upward to reset.Under the action of the one-way bearing, the tooth rack 113 slides upward to drive the gear 114 to rotate idly. In this way, the axis of the piston rod 16 can be measured multiple times at different angles and positions, so as to obtain more comprehensive data, improve the measurement accuracy, and once it is detected that the perpendicularity exceeds the preset standard, it can automatically mark the problematic position, so as to quickly locate and process the defective part.

[0034] As Figure 1 , Figure 6 and Figure 7 shown, the stabilizing component includes a limit block 2, a diamond block 21, a first air cylinder 22, a clamping block 23, an air duct 24, a second air cylinder 25 and a second spring 26. The limit block 2 is fixedly connected to the upper right rear part of the machine base 1. Diamond blocks 21 are fixedly connected to the rotational joints of the lower section of the connecting frame 13 with the moving block 1101, the rotational joints of the lower section and the upper section of the connecting frame 13, and the rotational joint of the measuring device 12 with the upper section of the connecting frame 13. First air cylinders 22 are fixedly connected to the sides of the lower section of the connecting frame 13, the upper section of the connecting frame 13 and the moving block 1101 close to the diamond block 21. The piston end of the first air cylinder 22 is fixedly connected with a clamping block 23 adapted to the diamond block 21. An air duct 24 communicates between the three first air cylinders 22. The upper right part of the moving block 1101 is fixedly connected with a second air cylinder 25. The lower end of the air duct 24 communicates with the second air cylinder 25. The piston end of the second air cylinder 25 is in extrusion fit with the limit block 2. A second spring 26 is connected between the piston end of the second air cylinder 25 and the cylinder body.

[0035] In the initial state, the limit block 2 presses the piston end of the second air cylinder 25, and the second spring 26 is in a deformed state. The clamping block 23 is separated from the diamond block 21, and the measuring device 12 and the connecting frame 13 can rotate freely for adjustment. When the moving block 1101 drives the measuring device 12 to move for measurement, the second air cylinder 25 will also move together with the moving block 1101, and then separate from the limit block 2. At this time, the second spring 26 resets to make the piston end of the second air cylinder 25 slide to the right, and then squeeze the air in the second air cylinder 25 into the air duct 24, and introduce the air into the three first air cylinders 22 through the air duct 24, thereby driving the piston end of the first air cylinder 22 to extend outwards. The piston end of the first air cylinder 22 extending outwards drives the clamping block 23 to move and fit the diamond block 21, thereby fixing the diamond block 21 and restricting the rotation of the connecting frame 13 and the measuring device 12, so that the measuring device 12 maintains the adjusted position angle for movement, and avoids the angle or position deviation of the measuring device 12 during the movement affecting the measurement accuracy.

[0036] As Figure 1 , Figure 8 and Figure 9As shown in the figure, the comparison component includes a mounting plate frame 3, a comparison rod 31, a clamping rod 32 and a guide ring 33. Guide rings 33 are fixedly connected to the mutually remote sides of the upper parts of the fixed top frame 14 and the sliding top frame 15. The mounting plate frame 3 is slidably connected to the guide rings 33. A comparison rod 31 is fixedly connected to the mounting plate frame 3. A clamping rod 32 is threadedly connected to the mounting plate frame 3.

[0037] After the piston rod 16 is fixed between the fixed top frame 14 and the rotating disk 115, the staff can control the comparison between the piston rod 16 and the comparison rod 31, observe whether the piston rod 16 and the comparison rod 31 are parallel, so as to ensure that the initial fixed position of the piston rod 16 is in a horizontal state. When the clamping rod 32 rotates and presses against the fixed top frame 14 or the sliding top frame 15, the position of the mounting plate frame 3 can be fixed. After the clamping rod 32 rotates in reverse and is loosened, the mounting plate frame 3 can slide on the guide ring 33, thereby adjusting the position of the comparison rod 31 so that the comparison rod 31 moves to a position convenient for the staff to observe.

[0038] Embodiment 2: On the basis of Embodiment 1, as Figure 1 、 Figure 10 and Figure 11 shown, it further includes a support component for supporting the middle part of the piston rod 16. The support component includes a support frame 4, a screw rod 41 and a measuring frame 42. A measuring frame 42 is fixedly connected to the middle part of the upper side of the machine base 1. Scale lines are provided on the measuring frame 42. Three equally spaced support frames 4 are slidably connected to the measuring frame 42. Three equally spaced screw rods 41 are rotatably connected to the measuring frame 42. The screw rod 41 is threadedly connected to the support frame 4.

[0039] When using this device, three support frames 4 at the same height can support the middle section of the piston rod 16, further ensuring the initial fixed state of the piston rod 16 and ensuring its horizontal placement. Rotating the screw rod 41 can drive the support frame 4 to slide on the measuring frame 42 to adjust the height so as to provide a suitable support height according to actual needs.

[0040] As Figure 1 and Figure 12 shown, it further includes a cleaning component for cleaning the surface of the piston rod 16. The cleaning component includes an elastic frame 5, a pull rope 51, a brush block 52 and a winding box 53. An elastic frame 5 is fixedly connected to the moving block 1101. A brush block 52 is fixedly connected to the upper part of the elastic frame 5. A winding box 53 is fixedly connected to the right part of the machine base 1. A pull rope 51 is connected in the winding box 53 through a volute spring. The tail end of the pull rope 51 passes through the middle part of the elastic frame 5 and is connected to the top end of the elastic frame 5.

[0041] In the initial state, the entire drawstring 51 is released to pull the elastic frame 5 to deform, so as to control the separation of the brush block 52 from the piston rod 16. When the moving block 1101 moves to the left, the elastic frame 5 will also drive the brush block 52 to move to the left together. At this time, the elastic frame 5 is no longer pulled by the drawstring 51, and the elastic frame 5 resets to make the brush block 52 contact the piston rod 16. When the brush block 52 continues to move, it will clean the surface of the piston rod 16 in front of the measuring device 12, avoiding impurities on the surface of the piston rod 16 from affecting the measurement accuracy, and the drawstring 51 that is relaxed when the elastic frame 5 moves is wound up by the winding box 53.

[0042] The above has introduced the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A device for measuring the verticality of a cylinder piston rod axis, comprising a base (1), a cover plate (101) rotatably connected to the base (1), an electric slide rail (11) fixedly connected to the base (1), a moving block (1101) slidably connected to the electric slide rail (11), a connecting frame (13) rotatably connected to the moving block (1101), the connecting frame (13) comprising an upper section and a lower section rotatably connected, a measuring device (12) rotatably connected to the top of the connecting frame (13), a fixed top frame (14) fixedly connected to one side of the base (1), the fixed top frame (14) Two longitudinally symmetrical fixed plates (1401) are fixedly connected to the frame (14); a center plate (1403) is slidably connected to one side of the two fixed plates (1401) close to each other; a first spring (1402) is connected between the center plate (1403) and the fixed plate (1401); the center plate (1403) is arc-shaped; a sliding top frame (15) is slidably connected to the other side of the machine base (1); an adjusting rod (1501) is rotatably connected inside the machine base (1); the adjusting rod (1501) is connected to the sliding top frame (15) by threads, and is characterized in that: The apparatus also includes a mounting frame (17), the mounting frame (17) is fixedly connected to the top of the connecting frame (13), a pressing plate (19) is slidably connected to the mounting frame (17), an applicator (18) is fixedly connected to the bottom of the pressing plate (19), a distance sensor (1901) is fixedly connected to the measuring rod of the measuring device (12), a micro electric push rod (110) is fixedly connected to the mounting frame (17), the micro electric push rod (110) and the distance sensor (1901) are electrically connected, the telescopic end of the micro electric push rod (110) is fixedly connected to the pressing plate (19), an extrusion block (111) is fixedly connected to the moving block (1101), a gear rack (113) is slidably connected to the sliding top frame (15), and an extrusion block (111) is fixedly connected to the moving block (1101). The pressing block (111) moves to be pressed and matched with the gear rack (113), a spring sheet (112) is connected between the bottom end of the gear rack (113) and the sliding top frame (15), a rotating disk (115) is rotatably connected to the sliding top frame (15), the rotating disk (115) and the fixed top frame (14) are used to clamp the piston rod (16), a gear (114) is connected to the rotating disk (115) through a one-way bearing, the gear (114) is meshed with the gear rack (113), a stabilizing component for maintaining the stability of the measuring device (12) during movement is provided on the machine base (1) and the connecting frame (13), and a comparison component for comparing the placement position of the piston rod (16) is provided on the sliding top frame (15) and the fixed top frame (14).

2. The device for measuring the verticality of a cylinder piston rod axis according to claim 1, characterized in that: The center plate (1403) is rotatably connected to rollers that are evenly distributed.

3. A cylinder piston rod axis verticality measuring device according to claim 2, characterized in that: A pointer is fixedly connected to the sliding top frame (15), and a scale line used in conjunction with the pointer is provided on the top of the machine base (1).

4. A device for measuring the verticality of a cylinder piston rod axis according to claim 3, characterized in that: Stable components The invention comprises a limit block (2), the limit block (2) is fixedly connected to the top of the machine base (1), the rotation connection between the lower section of the connecting frame (13) and the moving block (1101), the rotation connection between the lower section of the connecting frame (13) and the upper section, and the rotation connection between the measuring device (12) and the upper section of the connecting frame (13) are all fixedly connected with a diamond block (21), and the lower section of the connecting frame (13), the upper section of the connecting frame (13) and the side of the moving block (1101) close to the diamond block (21) are all fixedly connected with a first air cylinder (22). The piston end of the first air cylinder (22) is fixedly connected to a clamping block (23) adapted to the diamond block (21); an air guide pipe (24) is connected between the three first air cylinders (22); a second air cylinder (25) is fixedly connected to one side of the moving block (1101) close to the limit block (2); the lower end of the air guide pipe (24) is connected to the second air cylinder (25); the piston end of the second air cylinder (25) is pressed and matched with the limit block (2); and a second spring (26) is connected between the piston end of the second air cylinder (25) and the cylinder body.

5. The device for measuring the verticality of a cylinder piston rod axis according to claim 4, characterized in that: The comparison component comprises a guide ring (33), the guide ring (33) is fixedly connected to a side of a fixed top frame (14) and a sliding top frame (15) which are away from each other, a mounting plate frame (3) is slidably connected to the guide ring (33), a comparison rod (31) is fixedly connected to the mounting plate frame (3), and a clamping rod (32) is threadedly connected to the mounting plate frame (3).

6. The device for measuring the verticality of a cylinder piston rod axis according to claim 5, characterized in that: The invention also comprises a support assembly for supporting the middle part of the piston rod (16), the support assembly comprising a measuring frame (42), the measuring frame (42) being fixedly connected to the top of the machine base (1), the measuring frame (42) being slidably connected to the supporting frames (4) distributed at equal intervals, the measuring frame (42) being rotatably connected to the screw rods (41) distributed at equal intervals, and the screw rods (41) being connected to the supporting frame (4) by threads.

7. The device for measuring the verticality of a cylinder piston rod axis according to claim 6, characterized in that: The cleaning assembly is also provided for cleaning the surface of the piston rod (16), the cleaning assembly comprising an elastic frame (5), the elastic frame (5) being fixedly connected to the moving block (1101), a brush block (52) being fixedly connected to the top of the elastic frame (5), a winding box (53) being fixedly connected to the side of the machine base (1) away from the elastic frame (5), a pull rope (51) being connected to the winding box (53) via a spiral spring, and the tail end of the pull rope (51) passing through the middle of the elastic frame (5) and connected to the top of the elastic frame (5).

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