Detection equipment for sleeve assembly
By measuring the electrical conductivity relationship between the probe and the position judgment contact and the redundant feedback mechanism of the photoelectric sensor combined with the laser reflection path, the accuracy and stability problems of the sleeve and casing assembly detection are solved, and efficient and automated sleeve assembly detection is achieved.
Patent Information
- Application Number
- CN202510951194.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2025-09-09
AI Technical Summary
Existing sleeve and casing assembly production lines lack efficient and accurate detection methods, making it difficult to achieve comprehensive and accurate assembly confirmation, especially in large-scale continuous operations. In addition, existing visual systems are unable to identify the insertion depth and determine whether the insertion is in place. The lack of multiple feedback mechanisms leads to low system stability.
The electrical conductivity between the measuring probe and the position judgment measuring contacts, fixture and sleeve is determined. Combined with the redundant feedback mechanism of the photoelectric sensor and laser reflection path, the correct assembly inside the sleeve is judged by electrical and optical signals, and the insertion depth of the sleeve is quantified.
It realizes the automation and accuracy improvement of sleeve assembly, ensures timely discovery of unqualified parts, establishes quality data archives, facilitates abnormality tracking and analysis, improves system fault tolerance and automatic diagnosis capabilities, adapts to detection needs at different heights, shortens idle time, and improves efficiency.
Smart Images
Figure CN120609256A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of sleeve assembly, in particular to a detection device for sleeve assembly. Background Art
[0002] On existing sleeve and casing assembly lines, the inspection of the assembly completion status usually relies on manual spot checks or simple visual inspection methods for confirmation. This method has the following obvious shortcomings: First, manual inspection is highly subjective, inefficient, and prone to errors. Especially in large-scale continuous operation scenarios, it is difficult to achieve comprehensive and efficient assembly confirmation. Secondly, the existing visual system has limitations in depth information recognition. It can usually only identify the presence of a casing, but cannot accurately measure its insertion depth, let alone determine whether it is inserted in place or whether there is floating installation. Thirdly, the lack of multiple feedback mechanisms leads to low system stability and reliability. For example, whether the probe is in place or in contact with the casing, there is a lack of corresponding accurate judgment means, which is prone to misjudgment or missed detection. In summary, the existing assembly inspection equipment has significant deficiencies in accuracy. Summary of the Invention
[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a detection device for sleeve assembly, comprising a supporting side plate, two parallel second guide rails and a first guide rail are fixedly installed on the side surface of the supporting side plate along the vertical direction, wherein the first guide rail is fixed to the supporting side plate through the first guide rail mounting plate; a measuring arm mounting slider is slidably installed on the second guide rail, a measuring arm is fixedly installed on the measuring arm mounting slider, and a measuring probe for detecting whether there is a sleeve in the sleeve is fixedly installed on the measuring arm, wherein a driving part for driving the measuring probe to move vertically is also fixedly installed on the supporting side plate through an actuator bracket; a conductive slider is slidably installed on the first guide rail in a conductive sliding manner, and a photoelectric sensor is fixedly installed on the conductive slider, wherein a light shielding plate is fixedly installed on the side surface of the measuring arm mounting slider, and the light shielding plate and the photoelectric sensor form a photoelectric switch for monitoring whether the measuring probe has moved into place.
[0004] Preferably, an adjusting electric cylinder is movably mounted on the first guide rail mounting plate in an easily disassembled manner, the telescopic tube end of the adjusting electric cylinder is movably connected to the first guide rail mounting plate, and the telescopic rod end of the adjusting electric cylinder is movably connected to the conductive slider; one end of the first guide rail and the conductive slider are connected in series in a DC circuit, and the resistance between the first guide rail and the conductive slider is determined by measuring the current in the circuit (the resistance is related to the position of the first guide rail on the conductive slider, for example, the top of the first guide rail and the conductive slider are connected in series in the DC circuit. At this time, the lower the position of the conductive slider on the first guide rail, the smaller the current in the circuit and the larger the resistance, thereby monitoring the vertical height position of the photoelectric sensor on the first guide rail).
[0005] Preferably, the second guide rail and the measuring arm mounting slider are conductively slidably matched, the top end of the second guide rail and the measuring arm mounting slider are connected in series in a DC circuit, and the resistance between the second guide rail and the measuring arm mounting slider is determined by measuring the current in the circuit (the resistance is related to the position of the measuring arm mounting slider on the second guide rail; the lower the position of the measuring arm mounting slider on the second guide rail, the smaller the current in the circuit and the larger the resistance, thereby measuring the vertical height position of the measuring probe on the second guide rail, and being used to measure the depth of the sleeve inserted into the sleeve).
[0006] Preferably, a position judgment measuring contact insulated from the measuring probe is fixedly installed at the bottom end of the measuring probe, the circumferential diameter of the position judgment measuring contact is smaller than the diameter of the measuring probe, the position judgment measuring contact and the measuring probe are coaxially arranged, wherein the measuring probe is made of insulating material, or the surface of the measuring probe is provided with an insulating coating, the position judgment measuring contact and the fixture for fixing the sleeve are conductively matched through conduction and the conduit, and the position judgment measuring contact is in contact with the sleeve inside the sleeve and conductively matched.
[0007] Preferably, the driving part includes an actuator cylinder, and an actuator piston is installed on the inner wall of the actuator cylinder in a sliding seal. The top and bottom ends of the actuator cylinder are respectively provided with holes for connecting the air pipe, which are used to drive the actuator piston to slide on the inner wall of the actuator cylinder, and a driving rod is also provided at the axial position inside the actuator cylinder. The bottom end of the driving rod extends to the bottom of the actuator cylinder, the actuator cylinder and the driving rod are slidingly sealed, and the top end of the driving rod is fixedly matched with the actuator piston.
[0008] Preferably, the bottom end of the driving rod passes through the bottom of the measuring arm mounting slider, and a limit ring is fixedly installed on the bottom end of the driving rod, and the limit ring contacts and cooperates with the measuring arm mounting slider to limit the position of the measuring arm mounting slider on the driving rod and prevent the measuring arm mounting slider from separating from the driving rod. An actuating piston is also threadedly sleeved on the circumferential surface of the driving rod, and a threaded rod is fixedly installed between the actuating piston and the opposite surface of the measuring arm mounting slider, and the threaded rod is wrapped around the driving rod, wherein the driving rod and the measuring arm mounting slider are slidably matched.
[0009] Preferably, a threaded rod is inserted into the top of the actuator cylinder in a threaded seal fit coaxial with the drive rod, a hexagonal block is fixed to the top of the threaded rod, the top of the actuator piston is in contact with the actuator piston, a bellows is provided on the outer side of the threaded rod, and both ends of the bellows are in rotational seal fit with the hexagonal block and the actuator cylinder.
[0010] Preferably, a first reflector bracket is fixedly mounted on the top of the actuator cylinder, and the first reflector bracket is fixedly mounted on an inclined manner, and a laser is fixedly mounted on the support side plate below the first reflector, and a second reflector is arranged on the side of the laser, and the second reflector is fixedly mounted on the output shaft of the second reflector adjustment servo motor, and the second reflector adjustment servo motor is fixed on the support side plate, wherein the pipeline emitted by the laser can be reflected onto the second reflector by the laser, and a light receiver is arranged above the second reflector adjustment servo motor, and the light receiver is fixed at a position away from the second reflector (for example, fixed on the ceiling of the factory or the top of the equipment casing), and a worm gear mechanism is arranged in series in the output shaft of the second reflector adjustment servo motor and the transmission path of the second reflector, for realizing self-locking movement of the second reflector, preventing the second reflector from driving the output shaft of the second reflector adjustment servo motor to rotate due to gravity, or increasing the passive rotation resistance of the output shaft of the second reflector adjustment servo motor.
[0011] Preferably, the supporting side plates are fixedly mounted on the frame by means of aluminium beams, so that the measuring probe is located above the edge of a rotating station of the frame, which is used to fix a fixture for placing the sleeve.
[0012] Compared with the prior art, the present invention has the following advantages: (1) The present invention uses the electrical conductivity relationship between the measuring probe and the position judgment measuring contact, the fixture and the sleeve to accurately judge whether the sleeve is correctly assembled inside the sleeve, and uses the presence or absence of the electrical signal as the basis for judging whether the assembly is successful. Compared with the traditional manual visual inspection or visual comparison method, the present device avoids the misjudgment caused by human subjective error, greatly improves the automation and accuracy of the assembly process, and ensures that unqualified parts can be discovered and marked in the first time; (2) The present invention indirectly obtains the vertical height position of the measuring probe when pressing the sleeve by measuring the resistance change between the measuring arm mounting slider and the second guide rail, thereby quantifying the actual depth dimension of the sleeve inserted into the sleeve. This method not only meets the demand for accurate measurement, but also can be connected to the production traceability system to establish a quality data file for each workstation or each product, which is convenient for subsequent quality control and abnormal tracking analysis; (3) The present invention causes the displacement of the reflector by the swing of the actuator cylinder, which indirectly causes the deviation of the laser reflection path. Combined with the signal interruption of the light receiver, a redundant feedback mechanism is formed to confirm whether the measuring probe is in full contact with the sleeve end face, thereby preventing measurement misjudgment. In addition, the mechanism can also assist in determining whether the turntable is accurately positioned, thereby improving the overall fault tolerance and automatic diagnostic capability of the system; (4) The movement of the slider and guide rail of the measuring arm of the present invention is driven by a cylinder, and the limit displacement is limited by a limit ring to prevent structural detachment. At the same time, by setting a photoelectric sensor in conjunction with a light shield, the displacement state of the slider is detected in real time to determine whether the mechanism has run to the preset measurement position, thereby effectively preventing misoperation caused by probe offside, fixture not in place or other faults, and ensuring long-term stable operation of the equipment; (5) The present invention drives the threaded rod up and down by rotating the hexagonal block set at the top, thereby adjusting the initial stroke starting point of the actuating piston in the actuating cylinder, effectively adapting to the detection requirements of sleeve products with different heights or insertion depths, enhancing the applicability and flexibility of the detection equipment, while shortening unnecessary idle time and improving the measurement cycle and operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0014] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle.
[0015] Figure 3 For the present invention Figure 1 Schematic diagram of the structure at point B in the middle.
[0016] Figure 4 This is the laser light path diagram of the present invention.
[0017] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point C in the middle.
[0018] Figure 6 For the present invention Figure 4 Schematic diagram of the structure at point D in the middle.
[0019] Figure 7 For the present invention Figure 4 Schematic diagram of the structure at E in the middle.
[0020] Figure 8 For the present invention Figure 4 Schematic diagram of the structure at F in the middle.
[0021] Figure 9 Schematic diagram of the driving part structure of the present invention.
[0022] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at G in the middle.
[0023] Figure 11 For the present invention Figure 9 Schematic diagram of the structure at H in the middle.
[0024] Figure 12 For the present invention Figure 9 Schematic diagram of the structure at point I.
[0025] In the figure: 101-support side plate; 102-aluminum beam; 103-first guide rail mounting plate; 104-adjusting electric cylinder; 105-first guide rail; 106-conductive slider; 107-photoelectric sensor; 108-light shielding plate; 109-second guide rail; 110-measuring arm mounting slider; 111-measuring arm; 112-measuring probe; 113-position judgment measuring contact; 114-driving rod; 115-actuating cylinder; 116-actuating piston; 117-threaded rod; 118-hexagonal block; 119-bellows; 120-actuating cylinder bracket; 121-light receiver; 122-first reflector bracket; 123-first reflector; 124-laser; 125-second reflector adjustment servo motor; 126-second reflector; 127-limiting ring. DETAILED DESCRIPTION
[0026] The following is combined with Figure 1-12 , and further illustrate the technical solution of the present invention through specific implementation methods.
[0027] The present invention provides a detection device for sleeve assembly, comprising a supporting side plate 101, on the side of the supporting side plate 101, two parallel second guide rails 109 and a first guide rail 105 are fixedly installed along the vertical direction, wherein the first guide rail 105 is fixed to the supporting side plate 101 through a first guide rail mounting plate 103; a measuring arm mounting slider 110 is slidably mounted on the second guide rail 109, a measuring arm 111 is fixedly mounted on the measuring arm mounting slider 110, and a measuring arm 111 is fixedly mounted on the measuring arm 111 for detecting whether there is a sleeve in the sleeve The measuring probe 112 is fixedly mounted on the supporting side plate 101 via an actuator bracket 120 to drive the measuring probe 112 to move vertically. A conductive slider 106 is slidably mounted on the first guide rail 105 in a conductive sliding manner, and a photoelectric sensor 107 is fixedly mounted on the conductive slider 106. A light shielding plate 108 is fixedly mounted on the side of the measuring arm mounting slider 110. The light shielding plate 108 and the photoelectric sensor 107 form a photoelectric switch for monitoring whether the measuring probe 112 has moved into place. An adjusting electric cylinder 104 is movably mounted on the first guide rail mounting plate 103 in an easily removable manner. The end of the telescopic tube of the adjusting electric cylinder 104 is movably connected to the first guide rail mounting plate 103, and the end of the telescopic rod of the adjusting electric cylinder 104 is movably connected to the conductive slider 106. One end of the first guide rail 105 and the conductive slider 106 are connected in series in a DC circuit, and the resistance between the first guide rail 105 and the conductive slider 106 is determined by measuring the current in the circuit (the resistance is related to the position of the first guide rail 105 on the conductive slider 106. For example, if the top of the first guide rail 105 and the conductive slider 106 are connected in series in the DC circuit, the lower the position of the conductive slider 106 on the first guide rail 105, the smaller the current in the circuit and the larger the resistance, thereby monitoring the vertical height of the photoelectric sensor 107 on the first guide rail 105). The second guide rail 109 and the measuring arm mounting slider 110 are in conductive sliding cooperation. The top end of the second guide rail 109 and the measuring arm mounting slider 110 are connected in series in a DC circuit. The resistance between the second guide rail 109 and the measuring arm mounting slider 110 is determined by measuring the current in the circuit. (The resistance is related to the position of the measuring arm mounting slider 110 on the second guide rail 109. The lower the position of the measuring arm mounting slider 110 on the second guide rail 109, the smaller the current in the circuit and the greater the resistance. This is used to measure the vertical height of the measuring probe 112 on the second guide rail 109 and to measure the depth of the cannula inserted into the sleeve.)A position judgment measuring contact 113 insulated from the measuring probe 112 is fixedly installed at the bottom end of the measuring probe 112. The circumferential diameter of the position judgment measuring contact 113 is smaller than the diameter of the measuring probe 112. The position judgment measuring contact 113 is coaxially arranged with the measuring probe 112, wherein the measuring probe 112 is made of insulating material, or the surface of the measuring probe 112 is provided with an insulating coating. The position judgment measuring contact 113 is electrically matched with the fixture that fixes the sleeve through conduction and the conduit, and the position judgment measuring contact 113 is in contact with the sleeve inside the sleeve and is electrically matched.
[0028] The driving part includes an actuator cylinder 115, and an actuator piston 116 is installed on the inner wall of the actuator cylinder 115 in a sliding and sealing manner. The top and bottom ends of the actuator cylinder 115 are respectively provided with holes for connecting the air pipe, which are used to drive the actuator piston 116 to slide on the inner wall of the actuator cylinder 115. A driving rod 114 is also provided at the axial position inside the actuator cylinder 115, and the bottom end of the driving rod 114 extends to the bottom of the actuator cylinder 115. The actuator cylinder 115 and the driving rod 114 are slidingly and sealingly matched, and the top end of the driving rod 114 is fixedly matched with the actuator piston 116. The bottom end of the driving rod 114 passes through the bottom of the measuring arm mounting slider 110, and a limit ring 127 is fixedly installed on the bottom end of the driving rod 114. The limit ring 127 contacts and cooperates with the measuring arm mounting slider 110 to limit the position of the measuring arm mounting slider 110 on the driving rod 114 to prevent the measuring arm mounting slider 110 from separating from the driving rod 114. The circumferential surface of the driving rod 114 is also threadedly sleeved with an actuating piston 116, and a threaded rod 117 is fixedly installed between the actuating piston 116 and the opposite surface of the measuring arm mounting slider 110. The threaded rod 117 is wrapped around the driving rod 114, and the driving rod 114 slides with the measuring arm mounting slider 110. The top of the actuator cylinder 115 is coaxial with the drive rod 114 and a threaded rod 117 is inserted into the threaded seal. The top of the threaded rod 117 is fixed with a hexagonal block 118. The top of the actuator piston 116 is in contact with the actuator piston 116. The outer side of the threaded rod 117 is provided with a bellows 119. The two ends of the bellows 119 are in rotational seal with the hexagonal block 118 and the actuator cylinder 115. A first reflector bracket 122 is fixedly mounted on the top of the actuator 115, and a first reflector 123 is fixedly mounted on the first reflector bracket 122 at an angle. A laser 124 is fixedly mounted on the support side plate 101 below the first reflector 123. A second reflector 126 is provided on the side of the laser 124. The second reflector 126 is fixedly mounted on the output shaft of a second reflector adjustment servo motor 125. The second reflector adjustment servo motor 125 is fixed on the support side plate 101, wherein the pipeline emitted by the laser 124 can be reflected by the laser 124 to the second reflector 126. A light receiver 121 is mounted above the second reflector adjustment servo motor 125 and is secured at a location away from the second reflector 126 (e.g., on the ceiling of a factory building or on top of an equipment housing). A worm gear mechanism is connected in series between the output shaft of the second reflector adjustment servo motor 125 and the transmission path of the second reflector 126. This mechanism is used to achieve self-locking motion of the second reflector 126, prevent gravity from driving the output shaft of the second reflector adjustment servo motor 125, or increase the passive rotational resistance of the output shaft of the second reflector adjustment servo motor 125. The support side plate 101 is fixedly mounted to the frame via an aluminum beam 102, positioning the measurement probe 112 above the edge of the frame's rotation station, which is used to secure the fixture holding the sleeve.
[0029] When the sleeve containing the cannula moves below the measuring probe 112, the drive unit is activated. The top air hole of the actuator cylinder 115 allows air to flow in, while the bottom air hole allows air to flow out. This pushes the actuating piston 116 downward on the inner wall of the actuator cylinder 115. The drive rod 114 drives the measuring arm mounting slider 110 to slide on the second guide rail 109 (the drive rod 114 drives the measuring arm mounting slider 110 via the threaded rod 117). The measuring arm mounting slider 110 drives the measuring probe 112 toward the end face of the cannula via the measuring arm 111 (the measuring probe 112 is located directly above the end face edge of the cannula). If there is a cannula in the sleeve (i.e., the cannula and the sleeve are assembled successfully, otherwise the assembly fails and a mark is required for the assembly failure), the bottom end of the measuring probe 112 contacts the cannula. At this point, a closed circuit is formed between the position determination measurement contact 113, the cannula, the sleeve, and the corresponding fixture. At this point, an electrical signal is generated, which is used as a signal that a cannula is in the sleeve. Otherwise, there is no cannula. In order to ensure the contact force between the position judgment measuring contact 113 and the sleeve, when the position judgment measuring contact 113 (the bottom end of the measuring probe 112) contacts the sleeve, the driving rod 114 will continue to move downward, pushing the threaded rod 117 through the actuating piston 116, and then the threaded rod 117 compresses and squeezes the measuring arm mounting slider 110, thereby squeezing the sleeve through the measuring arm 111 and the measuring probe 112. At this time, the driving rod 114 and the measuring arm mounting slider 110 slide relative to each other.
[0030] During this process, since the compression amount of the threaded rod 117 is fixed (the threaded rod 117 only needs to be compressed to the limit), the displacement of the measuring arm mounting slider 110 on the second guide rail 109 is also determined. By measuring the position of the measuring arm mounting slider 110 on the second guide rail 109, the depth dimension information of the sleeve installed in the sleeve can be determined (determined by the resistance formed between the second guide rail 109 and the measuring arm mounting slider 110). When the measuring probe 112 squeezes the end face of the sleeve, a reaction force is applied to the actuator cylinder 115 body (because the threaded rod 117 is compressed to the limit). At this time, the actuator cylinder bracket 120 that fixes the actuator cylinder 115 will be significantly deformed, causing the actuator cylinder 115 to swing on the supporting side plate 101, and the first reflector bracket 122 fixed on the actuator cylinder 115 will swing. The first reflector 123 on the first reflector bracket 122 will swing, which will cause the incident angle of the laser 124 irradiated on the first reflector 123 to change. At this time, the position of the light reflected by the first reflector 123 on the second reflector 126 will change. At this time, the light reflected by the second reflector 126 will deviate from the light receiver 121, making it impossible for the light receiver 121 to receive the light signal (which can also be used here as a signal that the measuring probe 112 is not in contact with the end face of the sleeve. For example, when the measuring probe 112 moves downward because the sleeve has not moved to the specified position, the measuring probe 112 The bottom end of the needle 112 contacts the edge of the sleeve. At this time, the measuring probe 112 has not moved to the position at all. Combined with the photoelectric signal at the photoelectric sensor 107, it is determined that the driving sleeve turntable is working abnormally). At this time, it is a signal that the bottom end of the measuring probe 112 is completely in contact with the sleeve. This is used as a signal for the driving rod 114 to rise. The top air hole of the actuator cylinder 115 inhales air, and the bottom air hole intakes air, driving the actuator piston 116 to move upward inside the actuator cylinder 115. According to the different heights of each sleeve, the topmost position of the actuator piston 116 inside the actuator cylinder 115 can be adjusted by rotating the hexagonal block 118 to shorten the formation of the actuator piston 116 inside the actuator cylinder 115 and improve efficiency. Specifically, rotating the hexagonal block 118 can drive the threaded rod 117 to rotate. The rotation of the threaded rod 117 will cause the vertical movement along the axial direction of the actuator cylinder 115, thereby changing the distance between the actuator piston 116 and the top of the inner wall of the actuator cylinder 115 when the actuator piston 116 contacts the threaded rod 117.
[0031] When the measuring arm mounting slider 110 moves downward to the set position, the light shielding plate 108 on the measuring arm mounting slider 110 will pass through the photoelectric sensor 107, and the photoelectric sensor 107 will detect the movement of the light shielding plate 108. The photoelectric sensor 107 will determine whether the measuring arm mounting slider 110 has moved to the area position, which is used to determine whether the equipment is working normally.
Claims
1. A sleeve assembly detection device, characterized in that: It comprises a supporting side plate (101), wherein two parallel second guide rails (109) and a first guide rail (105) are fixedly mounted on the side surface of the supporting side plate (101) along a vertical direction, wherein the first guide rail (105) is fixed to the supporting side plate (101) via a first guide rail mounting plate (103); A measuring arm mounting slider (110) is slidably mounted on the second guide rail (109), a measuring arm (111) is fixedly mounted on the measuring arm mounting slider (110), a measuring probe (112) for detecting whether a sleeve exists in the sleeve is fixedly mounted on the measuring arm (111), wherein a driving unit for driving the measuring probe (112) to move vertically is also fixedly mounted on the supporting side plate (101) via an actuator bracket (120); A conductive slider (106) is slidably mounted on the first guide rail (105) in a conductive sliding manner, and a photoelectric sensor (107) is fixedly mounted on the conductive slider (106). A light shielding plate (108) is fixedly mounted on the side of the measuring arm mounting slider (110). The light shielding plate (108) and the photoelectric sensor (107) form a photoelectric switch for monitoring whether the measuring probe (112) has moved into place.
2. The sleeve assembly detection device according to claim 1, characterized in that: An adjusting electric cylinder (104) is movably mounted on the first guide rail mounting plate (103) in a manner that is easy to disassemble. The end of the telescopic cylinder of the adjusting electric cylinder (104) is movably connected to the first guide rail mounting plate (103), and the end of the telescopic rod of the adjusting electric cylinder (104) is movably connected to the conductive slider (106). One end of the first guide rail (105) and the conductive slider (106) are connected in series in a DC circuit, and the resistance between the first guide rail (105) and the conductive slider (106) is determined by measuring the current in the circuit.
3. The sleeve assembly detection device according to claim 2, characterized in that: The second guide rail (109) and the measuring arm mounting slider (110) are conductively slidably matched, and the top end of the second guide rail (109) and the measuring arm mounting slider (110) are connected in series in a DC circuit. The resistance between the second guide rail (109) and the measuring arm mounting slider (110) is determined by measuring the magnitude of the current in the circuit.
4. The sleeve assembly detection device according to claim 3, characterized in that: A position determination measuring contact (113) insulated and matched with the measuring probe (112) is fixedly installed at the bottom end of the measuring probe (112), the circumferential diameter of the position determination measuring contact (113) is smaller than the diameter of the measuring probe (112), the position determination measuring contact (113) and the measuring probe (112) are coaxially arranged, wherein the measuring probe (112) is made of an insulating material, or the surface of the measuring probe (112) is provided with an insulating coating, the position determination measuring contact (113) and the fixture for fixing the sleeve are electrically matched through conduction and a conduit, and the position determination measuring contact (113) and the sleeve in the sleeve are in contact and electrically matched.
5. The sleeve assembly detection device according to claim 4, characterized in that: The driving part includes an actuating cylinder (115), an actuating piston (116) is installed on the inner wall of the actuating cylinder (115) in a sliding seal, and holes for connecting an air pipe are respectively provided at the top and bottom ends of the actuating cylinder (115), which are used to drive the actuating piston (116) to slide on the inner wall of the actuating cylinder (115), wherein a driving rod (114) is further provided at an axial position inside the actuating cylinder (115), the bottom end of the driving rod (114) extends to the bottom of the actuating cylinder (115), the actuating cylinder (115) and the driving rod (114) are in sliding sealing cooperation, and the top end of the driving rod (114) is fixedly cooperated with the actuating piston (116).
6. The sleeve assembly detection device according to claim 5, characterized in that: The bottom end of the driving rod (114) passes through the bottom of the measuring arm mounting slider (110), and a limiting ring (127) is fixedly installed on the bottom end of the driving rod (114). The limiting ring (127) contacts and cooperates with the measuring arm mounting slider (110) to limit the position of the measuring arm mounting slider (110) on the driving rod (114) and prevent the measuring arm mounting slider (110) from being separated from the driving rod (114). The circumferential surface of the driving rod (114) is also threadedly sleeved with an actuating piston (116). A threaded rod (117) is fixedly installed between the actuating piston (116) and the opposite surface of the measuring arm mounting slider (110). The threaded rod (117) is sleeved around the driving rod (114), wherein the driving rod (114) and the measuring arm mounting slider (110) are slidably matched.
7. The sleeve assembly detection device according to claim 6, characterized in that: The top end of the actuator cylinder (115) is threadedly sealed with a threaded rod (117) at a position coaxial with the drive rod (114). A hexagonal block (118) is fixed to the top end of the threaded rod (117). The top end of the actuator piston (116) is in contact with the actuator piston (116). A bellows (119) is provided on the outer side of the threaded rod (117). Both ends of the bellows (119) are rotationally sealed with the hexagonal block (118) and the actuator cylinder (115).
8. The sleeve assembly detection device according to claim 7, characterized in that: A first reflector bracket (122) is fixedly mounted on the top of the actuator cylinder (115), a first reflector (123) is fixedly mounted on the first reflector bracket (122) in an inclined manner, a laser (124) is fixedly mounted on the support side plate (101) below the first reflector (123), a second reflector (126) is arranged on the side of the laser (124), the second reflector (126) is fixedly mounted on the output shaft of the second reflector adjustment servo motor (125), the second reflector adjustment servo motor (125) is fixed on the support side plate (101), wherein the pipeline emitted by the laser (124) can be reflected to the second reflector (126) through the laser (124), a light receiver (121) is arranged above the second reflector adjustment servo motor (125), and the light receiver (121) is fixed at a position away from the second reflector (126).
9. The sleeve assembly detection device according to claim 8, characterized in that: The supporting side plate (101) is fixedly mounted on the frame via the aluminum beam (102) so that the measuring probe (112) is located above the edge of the frame rotation station, which is used to fix the fixture for placing the sleeve.