A flexible shaft assembly detection device, calibration method, and usage method

Abstract

The present invention discloses a flexible shaft assembly detection device, comprising a flexible shaft assembly straightening component, a base, a rear section measuring mechanism, a guide rail groove, a magnetic grating digital display, a viscous magnetic scale, a magnetic scale probe, and a front section measuring mechanism, wherein the front section measuring mechanism is fixed at the front end of the guide rail groove; the rear section measuring mechanism is slidably installed in the guide rail groove behind the front section measuring mechanism, and the structure of the front section measuring mechanism is the same as that of the rear section measuring mechanism, and the two are assembled in the guide rail groove in an approximately symmetrical manner. The present invention uses a pull rope to simultaneously pull the rear section measuring plate and the rear section first clamp, thereby measuring the length of the flexible shaft assembly, and measuring the three lengths of the flexible shaft assembly: the length of the middle section flexible shaft assembly (the distance between the clamping surfaces of the connectors at both ends of the hose), the length of the front section flexible shaft assembly (the distance from the front end of the flexible shaft to the clamping surface of the connector at the front end of the hose), and the length of the rear section flexible shaft assembly (the distance from the rear end of the flexible shaft to the clamping surface of the connector at the rear end of the hose).

Description

Technical Field

[0001] The present invention relates to the technical field of automobile accessories, and in particular to a flexible shaft assembly detection device, a calibration method, and a use method. Background Art

[0002] Control cable assemblies and push-pull flexible shaft assemblies are used in various fields of the machinery industry. They are used to connect the control components of automobiles, aircraft, and large machinery. They are found in powertrains, transmission systems, braking systems, and travel systems. They are divided into throttle cable (wire) assemblies, clutch cable (wire) assemblies, brake cable (wire) assemblies, odometer flexible shafts, and gear selector flexible shaft assemblies. Cable assemblies have specialized fasteners at both ends to correspond to different vehicle models. Cable assemblies of the same category are primarily distinguished by length and fasteners such as sleeve joints and rope (shaft) joints.

[0003] When operating a control cable assembly or push-pull flexible shaft assembly, the active end of the cable connector is typically connected to various pedals and joysticks to drive the cable's travel. The passive end of the cable connector connects to various loads, driving the load's corresponding movements. The performance of the control cable assembly and push-pull flexible shaft assembly largely determines the machine's maneuverability and stability. The performance of the control cable assembly is primarily determined by parameters such as the cable's load efficiency, travel efficiency, operating range, connector pull-out force, and durability.

[0004] The flexible shaft assembly consists of a hose and a steel wire rope inserted inside the hose. Some flexible shaft assemblies also include several spaced-apart clamp bushings outside the hose. The flexible shaft assembly has three length sections: the middle section (the distance between the connectors at both ends of the hose), the front section (the distance from the front end of the flexible shaft to the connector at the front end of the hose), and the rear section (the distance from the rear end of the flexible shaft to the connector at the rear end of the hose). Currently, measuring the length of a flexible shaft assembly has the following main drawbacks:

[0005] (1) Each time the inspector randomly measures the length of the hose, the length of the front and rear wire ropes, and the position of the pipe clamp bushing of the flexible shaft assembly, he or she only uses a ruler and a joint positioning block. The visual inspection accuracy is low, and for longer flexible shaft assemblies, two people are required to work together to measure. When measuring, the length of each part of the flexible shaft assembly needs to be calculated by comparing the ruler readings with the product drawings. The inspector's work is time-consuming and labor-intensive, and the work fatigue is high.

[0006] (2) The inspector cannot straighten the hose and wire rope stably by manpower during each sampling measurement, and the measurement results have large errors.

[0007] (3) When the inspector makes sampling measurements each time, because the length reference of some specifications of flexible shaft assemblies is marked on the irregular part of the hose joint on the drawing or is blocked by the protective rubber sleeve, it is necessary to select the regular end face of the joint as the reference reference for measurement and calculation.

[0008] (4) Each time the inspector makes a sampling measurement, he / she needs to use an independent stroke measuring instrument to measure the wire rope stroke of the flexible shaft assembly.

[0009] (5) Inspectors need to use inspection tools of corresponding specifications when conducting batch inspections. A set of inspection tools needs to be replaced for each specification of product inspected, which results in a high total cost.

[0010] (6) The inspection fixture used for batch inspection has fixed positioning blocks for the hose and wire rope but no scale. It can only compare the length range of the flexible shaft assembly but cannot read the number. The inspection accuracy is low and it is not convenient for inspection and maintenance of the inspection fixture.

[0011] The applicant has also conducted related research earlier, such as CN213363690U, a length measuring device for cable assemblies, and CN104568407A, a flexible shaft comprehensive testing bench. The patent technology previously applied for by the applicant still has functional deficiencies, such as the inability to measure the length of the front, middle and rear sections of the flexible shaft assembly, and the inability to apply to product sampling measurement and batch measurement.

[0012] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of this application. Summary of the Invention

[0013] The main purpose of this invention is to provide a flexible shaft assembly detection device that can simultaneously measure three lengths of a flexible shaft assembly: the middle length (the distance between the connector engagement surfaces at both ends of the hose), the front length (the distance from the front end of the flexible shaft to the connector engagement surface at the front end of the hose), and the rear length (the distance from the rear end of the flexible shaft to the connector engagement surface at the rear end of the hose). Through positioning and configuration, the sum of the front and rear lengths can be displayed on a single digital scale. The device can also measure wire rope travel and the distance from each pipe clamp to the connector engagement surface. Through proper use, the flexible shaft assembly detection device can also be applied to product sampling and batch measurement.

[0014] To this end, the present invention provides a flexible shaft assembly detection device, a calibration method, and a usage method.

[0015] Preferably, the present invention may also have the following technical features:

[0016] A flexible shaft assembly detection device includes a flexible shaft straightening assembly, a base, a rear-section measuring mechanism, a guide rail groove, a magnetic grating digital display, a viscous magnetic scale, and a magnetic scale probe. The flexible shaft straightening assembly is used to pull the rear-section measuring mechanism, and includes a counterweight, a pull rope, a pull ring, a pulley, and a cylinder. The guide rail groove is arranged along the length of the base; the rear-section measuring mechanism includes a rear-section measuring plate, a rear-section wire rope clamp, and a rear-section linear guide rail. The lower portion of the rear-section measuring plate is slidably connected to the guide rail groove, and the upper surface is provided with the rear-section linear guide rail; the rear-section wire rope clamp is slidably mounted on the rear-section linear guide rail, and its upper end is provided with a T-shaped clamp;

[0017] It also includes a front-section measuring mechanism, which is fixed to the front end of the guide rail groove; the rear-section measuring mechanism is slidably installed in the guide rail groove behind the front-section measuring mechanism, and it also includes a rear-section digital display scale and a hose rear-end joint positioning module, the lower part of the hose rear-end joint positioning module is fixed to the front end of the rear-section measuring plate, and the upper part is provided with a bayonet; the rear-section digital display scale is installed on the left side of the rear-section measuring plate, and its digital display is fixedly connected to the rear-section wire rope clamp through a connecting plate; the structure of the front-section measuring mechanism is the same as that of the rear-section measuring mechanism, and the two are assembled on the guide rail groove in an approximately symmetrical manner, and it includes a front-section measuring plate, a front-section wire rope clamp, a front-section digital display scale, a hose front-end joint positioning module, and a front-section linear guide rail;

[0018] At least three pulleys are provided, which are divided into a first pulley, a second pulley and a third pulley. The second pulley and the third pulley are assembled on the same rotating shaft to form a pulley group; the first pulley is installed on the first clamp of the rear section through the first vertical frame, and the pulley group is installed at the rear end of the base through the second vertical frame; the pull ring is installed at the rear end of the rear measuring plate, one end of the pull rope is connected to the pull ring, and the pull rope is wrapped around the second pulley, then around the first pulley, and then around the third pulley. The end of the pull rope is connected to the counterweight block, and the cylinder is provided directly below the counterweight block.

[0019] Furthermore, the guide rail groove is provided with a U-shaped long groove, and both sides of the interior of the U-shaped long groove are respectively provided with second guide ribs extending along the length direction thereof.

[0020] Furthermore, it also includes a second connecting member, which includes a large limit block and a second slider. The lower part of the second slider is provided with a second assembly groove that matches the second guide rib, and the upper part is fixed with a rear measuring plate; the two large limit blocks are slidably installed in the U-shaped long groove, and are respectively arranged at both ends of the second slider, and the two sides of the lower part are respectively provided with a third assembly groove that matches the second guide rib, and a limit bolt is provided on the side.

[0021] Furthermore, the rear section clamp of the wire rope includes a rear section first slider, a rear section first clamp, a rear section pointer, and a rear section slider limit block. The lower part of the rear section first slider is an N-shaped structure and is slidably installed on the rear section linear guide rail. The top surface is provided with the rear section first clamp, the front is provided with the rear section pointer, and the rear part is provided with the connecting plate; the two rear section slider limit blocks are slidably installed on the rear section linear guide rail, and the side surfaces thereof are provided with locking bolts; the top of the rear section first clamp is provided with the T-shaped clamp.

[0022] Furthermore, the hose rear end connector positioning module includes a rear section first connecting seat, a rear section second guide rail, a rear section second clamp, a rear section second adhesive scale, and a rear section small limit block. The lower part of the rear section first connecting seat is fixed to the front end of the rear section measuring plate, and the left side is provided with the rear section second adhesive scale arranged along its length direction, and the upper surface of the rear section second guide rail is also fixed; the lower part of the rear section second clamp is slidably connected to the rear section second guide rail, and the upper part is provided with a U-shaped bayonet; the two rear section small limit blocks are slidably installed on the rear section second guide rail and are respectively arranged at both ends of the rear section second clamp, and the side of the rear section small limit block is provided with a locking bolt; the rear section second clamp is also provided with a second pointer, which extends downward to the rear section first connecting seat and is directly in front of the rear section second adhesive scale.

[0023] Furthermore, it also includes a pipe clamp bushing positioning block and a middle section adhesive scale, the top of the pipe clamp bushing positioning block is provided with a positioning groove, and the lower part is provided with a fourth mounting groove that is matched with the second guide rib of the guide rail groove; the middle section adhesive scale is installed on the upper surface of the guide groove and arranged along the length direction of the guide groove; the lower part of the pipe clamp bushing positioning block is also provided with a pointer limit block, and the pointer limit block extends to the top of the middle section adhesive scale.

[0024] Furthermore, the lower part of the pipe clamp bushing positioning block is divided into a third half block and a fourth half block, the third half block is provided with a screw hole for connecting the guide stud, the fourth half block is provided with a connecting hole corresponding to the screw hole, and a screw hole for connecting the locking bolt, the third half block is connected to the fourth half block through the guide stud, and then the locking bolt is tightened to move the third half block away from the fourth half block, thereby locking the pipe clamp bushing positioning block on the guide groove.

[0025] A calibration method for the flexible shaft assembly detection device as described above, including the calibration method for the magnetic scale digital display: first, the magnetic scale digital display is set to absolute measurement mode, then the rear measuring plate is moved closer to the front measuring plate so that the end faces of the front measuring plate and the rear measuring plate are aligned, then the initial value of the magnetic scale digital display is set to zero, and then the initial value reset key is pressed;

[0026] It also includes a calibration method for the front-end digital display scale: first set the front-end digital display scale to the absolute measurement mode, remove the hose front-end joint positioning module, then move the front-end clamp of the wire rope to the rear end of the front-end measuring plate, align the front-end pointer end face with the rear end face of the front-end measuring plate, then set the initial value of the front-end digital display scale to zero, and finally install the hose front-end joint positioning module back to its original position.

[0027] A method for using the flexible shaft assembly detection device to perform sampling measurements on the flexible shaft assembly, wherein the initial mode of each digital display ruler is adjusted to the absolute measurement mode, and the measurement operation steps include:

[0028] S1. Clamping and straightening the flexible shaft assembly: Use the extended cylinder rod to lift the counterweight, and then respectively clamp the connector clamping surfaces at both ends of the hose assembly to be tested into the hose front connector positioning module and the hose rear connector positioning module; then clamp the front and rear sections of the wire rope into the front and rear section clamps of the wire rope respectively. Then, according to the flexible shaft assembly product drawing, push and pull the front section clamp of the wire rope to move the wire rope until the reading of the front section digital scale reaches the standard length value of the front section flexible shaft, and then fix the front section clamp of the wire rope through its limit block; finally, control the cylinder rod to retract, and the counterweight will droop to straighten the hose and wire rope;

[0029] S2. Perform one or more of the following measurement methods separately according to the measurement requirements:

[0030] 1) Measuring method of the middle section flexible shaft length: According to the flexible shaft assembly product drawing, observe whether the reading of the magnetic scale digital display is within the standard range of the middle section flexible shaft length. Otherwise, the measured flexible shaft assembly product is defective, and then fill in the measurement data in the measurement record book;

[0031] 2) Measuring method for the length of the front and rear flexible shafts: According to the flexible shaft assembly product drawing, set the initial value of the rear digital scale to the standard length of the front flexible shaft. When measuring, observe whether the reading of the rear digital scale is within the standard range of the sum of the front and rear flexible shaft lengths. Otherwise, the measured flexible shaft assembly product is defective. Then fill in the measurement record book;

[0032] 3) Method for measuring the stroke of the flexible shaft assembly: first pull the front section of the wire rope out of the front section fixture, then pull the rear section fixture to move the rear section of the wire rope; when the digital display scale reading of the rear section reaches the standard value of the rear section, switch to the relative measurement mode and reset it to zero, then continue to pull the wire rope and the rear section fixture, observe the reading of the digital display scale of the rear section within the maximum push-pull range, and compare it with the range marked on the drawing to determine whether the flexible shaft assembly product is defective, and then fill in the measurement data in the measurement record book;

[0033] 4) Measuring method for the position of the pipe clamp bushing: ensure that the front section of the wire rope is clamped into the front section of the wire rope clamp, and the pipe clamp bushing is in the corresponding positioning groove of the pipe clamp bushing positioning block. The hose and wire rope are in the starting and straightening state at the same time. Observe the position reading of the pipe clamp bushing positioning block, which is the distance from the pipe clamp bushing to the front end connector of the pressure-resistant hose, and then fill in the measurement data in the measurement record book.

[0034] A method for using the flexible shaft assembly detection device to quickly measure flexible shaft assemblies in batches, the measurement operation steps include:

[0035] S1. Clamping and straightening the flexible shaft assembly product: Use the extended cylinder rod to lift the counterweight block, and then respectively clamp the connector clamping surfaces at both ends of the tested hose into the hose front end connector positioning module and the hose rear end connector positioning module; then clamp the front section of the wire rope and the rear section of the wire rope into the front section of the wire rope clamp and the rear section of the wire rope clamp respectively. Then, according to the flexible shaft assembly product drawing, push and pull the front section of the wire rope clamp to move the wire rope until the reading of the front section digital scale reaches the standard length value of the front section of the flexible shaft, and then fix the front section of the wire rope clamp through its limit block; finally, control the cylinder rod to retract, and the counterweight block will droop to straighten the pressure-resistant hose and wire rope;

[0036] S2. Switch each digital scale to relative measurement mode: According to the drawing of the flexible shaft assembly product being tested, move the rear measuring plate so that the reading of the magnetic scale digital display is equal to the standard value of the middle section flexible shaft length. Then switch the magnetic scale digital display to relative measurement mode, that is, set the magnetic scale digital display reading to zero at the standard position. Similarly, switch the rear digital scale to relative measurement mode. Observe whether the readings of the magnetic scale digital display and the rear digital display are within the tolerance range marked on the drawing. Otherwise, the tested flexible shaft assembly product is defective.

[0037] S3. Perform the following measurement method according to the measurement requirements:

[0038] 1) Quick measurement method for short flexible shaft assemblies: According to the lower limits of the lengths of each section marked on the drawing of the flexible shaft assembly being tested, move the rear section measuring plate and the rear section clamp of the wire rope to the corresponding lower limit positions of the two products, and then fix their lower limit blocks close to them. If the corresponding size of the flexible shaft assembly product is too short, the hose connector positioning module or wire rope clamp at one end cannot be installed, so the short flexible shaft assembly product can be detected;

[0039] 2) A quick measurement method for detecting the position of the pipe clamp bushing: According to the number of pipe clamp bushings clamped by the flexible shaft assembly product being tested, a corresponding number of pipe clamp bushing positioning blocks and their pointer limit blocks, as well as double the number of large limit blocks, are installed on the guide rail groove; according to the lower limit of the position of the pipe clamp bushing marked on the drawing of the flexible shaft assembly product being tested, the pointer limit block with the pipe clamp bushing positioning block is adjusted to the upper and lower limits of the pipe clamp bushing installation position respectively, and then the upper and lower limit large limit blocks are fixed close to both sides of the pointer limit block accordingly, and it is observed whether each pipe clamp bushing can be stuck into the corresponding positioning groove on the top of the pipe clamp bushing positioning block. If the pipe clamp bushing cannot be stuck in the positioning groove, the tested flexible shaft assembly product is a defective product.

[0040] The beneficial effects of the present invention compared to the prior art include: through the structure of the flexible shaft assembly detection device, the total length of the flexible shaft assembly, the length of each section, the stroke, the position of the pipe clamp bushing, etc. can be measured to determine whether they meet production requirements. The flexible shaft assembly detection device can also be operated by different methods to achieve rapid measurement of shorter flexible shaft assemblies and the position of the pipe clamp bushing. In other words, through the flexible shaft assembly detection device and by performing appropriate operations on the flexible shaft assembly detection device, sampling measurement and batch measurement of flexible shaft assembly products can be achieved, greatly enriching the functionality of the flexible shaft assembly detection device and significantly surpassing the existing flexible shaft assembly detection device in terms of functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a perspective view of the present invention.

[0042] Figure 2 and Figure 4 It is a three-dimensional diagram of the rear-stage measuring mechanism of the present invention.

[0043] Figure 3 It is a partial stereoscopic view of the present invention (the base, guide rail groove and other components are not shown).

[0044] Figure 5 yes Figure 4 Enlarged view of part A in .

[0045] Figure 6 and Figure 7 It is a three-dimensional diagram of the front-end measuring mechanism of the present invention.

[0046] Figure 8 It is an assembly drawing of the pipe clamp bushing positioning block of the present invention. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope of the present invention and its application.

[0048] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts unless otherwise specifically specified.

[0049] like Figure 1 A flexible shaft assembly detection device shown includes a flexible shaft assembly straightening component, a base 27, a guide rail groove 12, a magnetic grating digital display 24, a viscous magnetic scale 14, and a magnetic scale probe 15. The flexible shaft assembly straightening component includes a counterweight block 30, a pull rope 29, a pull ring 42, a pulley, and a cylinder 32. The flexible shaft assembly detection device also includes a front-end measuring mechanism, a rear-end measuring mechanism, a first connecting member, and a second connecting member. The guide rail groove 12 is arranged along the length direction of the base 27 and is fixed to the base 27 by bolts; the rear end face of the front-end measuring mechanism serves as a first reference plane and is fixed to the front end of the guide rail groove 12 by the first connecting member; the front end face of the rear-end measuring mechanism serves as a second reference plane and is slidably installed on the rear end of the guide rail groove 12 by the second connecting member. During operation, the ends of the flexible shaft assembly are respectively attached to the front and rear measuring mechanisms. The flexible shaft assembly straightening assembly then pulls the rear measuring mechanism away from the front measuring mechanism, thereby straightening the flexible shaft assembly and obtaining its length information. The distance traveled by the rear measuring mechanism on the guide rail slot 12 is measured through the coordination between the magnetic scale digital display 24, the viscous magnetic scale 14, and the magnetic scale probe 15. The viscous magnetic scale 14 is fixed to the right side of the guide rail slot 12, while the magnetic scale digital display 24 and magnetic scale probe 15 are mounted to the right side of the rear measuring mechanism, with the magnetic scale probe 15 extending to the viscous magnetic scale 14. The values ​​detected by the magnetic scale probe 15 during movement are automatically accumulated on the magnetic scale digital display 24.

[0050] The guide rail groove 12 is provided with a U-shaped long groove, and two sides of the interior of the U-shaped long groove are respectively provided with second guide ribs 121 extending along the length direction thereof.

[0051] Recombination Figures 2 to 5 To learn more about the composition of the back-end measurement mechanism, first refer to Figure 2 and Figure 3The second connecting member includes a large limit block 26 and a second slider 25. The lower portion of the second slider 25 is slidably mounted in the U-shaped long groove of the guide rail groove 12. The surface of the lower portion of the second slider 25 that contacts the U-shaped long groove is provided with a second assembly groove 251 that matches the second guide rib 121. The upper portion of the second slider 25 is connected to the rear-section measuring mechanism via bolts. The two large limit blocks 26 are slidably mounted in the U-shaped long groove and are respectively provided at both ends of the second slider 25. The two sides of the lower portion are respectively provided with third assembly grooves 263 that match the second guide rib 121. The large limit blocks 26 are also provided with limit bolts 264. The limit bolts 264 limit the movement of the large limit blocks 26, so that the two large limit blocks 26 can be abutted against the two ends of the second slider 25. Adjusting the limit bolts 264 limits the movement of the large limit blocks 26, thereby fixing the position of the second slider 25. Preferably, the large limit block 26 includes a first half block 261 and a second half block 262 cut along its length direction, and a guide screw 265. A first screw hole connecting the guide screw 265 is opened on the surface where the first half block 26 and the second half block 262 abut each other, and a guide hole corresponding to the position of the first screw hole is opened in the second half block 262. The second half block 262 is also provided with a second screw hole. The bolt end of the guide screw 265 is assembled in the first screw hole, and its cylindrical end is assembled in the guide hole, and the second half block 262 moves along the length direction of the guide screw 265 through the guide hole; the limiting bolt 264 is assembled into the second screw hole, so that the front end of the limiting bolt 264 is against the first half block 261, and then the first half block 261 and the second half block 262 are moved away from each other, so that the assembly grooves of the first half block 261 and the second half block 262 are pressed against the second guide rib 121 of the U-shaped long groove, thereby achieving the purpose of limiting the movement of the large limiting block 26.

[0052] Further reference Figures 2 to 5The rear section measuring mechanism includes a rear section measuring plate 23, a wire rope rear section clamp 18, a rear section digital display scale 19, a hose rear end connector positioning module 13, a rear section linear guide 22, and a rear section viscous scale 21. The lower surface of the rear section measuring plate 23 is fixedly connected to the second slider 25. The rear section linear guide 22 and the rear section viscous scale 21 are fixed to the upper surface of the rear section measuring plate 23 and are arranged along the length of the rear section measuring plate 23 and are parallel to each other. The wire rope rear section clamp 18 is slidably mounted on the rear section linear guide 22, and its upper end is provided with a T-shaped clamp 181 for clamping the connector 101 at the rear end of the flexible shaft. The lower portion of the hose rear end connector positioning module 13 is fixed to the front end of the rear section measuring plate 23, and the upper portion is provided with a bayonet 39 to clamp the hose rear end connector of the flexible shaft assembly. The rear-end digital scale 19 is mounted to the left side of the rear-end measuring plate 23. It consists of a scale body and a digital cursor slidably mounted on the scale body. The scale body extends along the length of the rear-end measuring plate 23 and is secured to the plate 23 at both ends by bolts. The digital cursor is fixedly connected to the rear-end wire rope clamp 18 via a connecting plate 191, allowing it to follow the movement of the rear-end wire rope clamp 18 and display the distance traveled by the clamp 18. Alternatively, a rear-end adhesive scale 21 can also be used to measure the distance traveled by the clamp 18. When the rear-end adhesive scale 21 is assembled, its rear end is aligned with the front end of the rear-end measuring plate 23.

[0053] Key References Figure 2The wire rope rear section fixture 18 includes a rear section first slider 186, a rear section first fixture 182, and a rear section pointer 17. The lower portion of the rear section first slider 186 has an N-shaped structure and is slidably mounted on the rear section linear guide 22. The rear section first fixture 182 is mounted on its top surface, the rear section pointer 17 is mounted on its front portion, and the connecting plate 191 is mounted on its rear portion. On the one hand, the position indicated by the rear section pointer 17 serves as a data recording point. For example, when the rear section pointer 17 is aligned with the front end of the rear section measuring plate 23, it serves as the initial zero value of the rear section digital display scale 19. On the other hand, by aligning the rear section pointer 17 with the rear section viscous scale 21 and positioning it above the rear section viscous scale 21, the travel distance of the rear section first slider 186 can be determined by the scale line on the rear section viscous scale 21 indicated by the rear section pointer 17, which has the same function as the rear section digital display scale 19. The T-shaped clamping opening 181 is provided on the top surface of the rear first clamp 182 to clamp the connector 101 at the rear end of the flexible shaft. Preferably, the rear slider limit block 183 is further included. The lower portion of the rear slider limit block 183 is an N-shaped structure and is slidably mounted on the rear linear guide rail 22. The side of the rear slider limit block 183 is provided with a screw hole. The screw hole is installed with a bolt 184. By screwing in the bolt 184, the rear linear guide rail 22 is tightened, thereby fixing the position of the rear slider limit block 183 on the rear linear guide rail 22. Furthermore, a rear slider limit block 183 can be provided at each of the front and rear ends of the rear first slider 186, and the position of the rear first slider 186 on the rear linear guide rail 22 can be fixed by the rear slider limit block 183.

[0054] Continue reading Figure 2 The rear linear guide rail 22 is provided with first guide grooves extending along its length on both sides. Correspondingly, first guide ribs 185 are provided on both sides of the N-shaped structure of the rear first slider 186 and the rear slider stopper 183, which mate with the first guide grooves. During installation, the rear first slider 186 and the rear slider stopper 183 are aligned with the first guide ribs 185 and the first guide grooves. The slider 186 and the rear slider stopper 183 are then slid into the rear linear guide rail 22 from the end. Bolts 184 are then used to restrict the movement of the rear slider stopper 183 on the rear linear guide rail 22, thereby securing the position of the rear first slider 186.

[0055] Continue reading Figure 2 and Figure 3The hose rear end connector positioning module 13 comprises a rear first connecting seat 131, a rear second guide rail 37, a rear second clamp 132, a rear second adhesive scale 38, and a rear small stop block 40. The lower portion of the rear first connecting seat 131 is bolted to the front end of the rear measuring plate 23. The left side of the rear first connecting seat 131 is provided with the rear second adhesive scale 38 running along its length. The rear second guide rail 37 is also fixed to its upper surface, aligned with the rear linear guide 22. The lower portion of the rear second clamp 132 is slidably connected to the rear second guide rail 37, and the upper portion is provided with a U-shaped retaining plate 39 for engaging the hose rear end connector of the flexible shaft assembly. The rear second clamp 132 also has a second pointer 135, which extends downward to the rear first connecting seat 131 and is located directly in front of the rear second adhesive scale 38. The rear-segment small stopper 40 is slidably mounted on the rear-segment second guide rail 37. A rear-segment small stopper 40 is provided at each end of the rear-segment second clamp 132. The side surfaces of the rear-segment small stopper 40 are provided with screw holes for connecting bolts. To secure the position of the rear-segment second clamp 132, the rear-segment second clamp 132 is slid to the designated position according to installation requirements. The two rear-segment small stoppers 40 are then attached to the rear-segment second clamp 132. The rear-segment small stoppers 40 are then secured in place using locking bolts, thereby restricting the movement of the rear-segment second clamp 132 on the rear-segment second guide rail 37.

[0056] The rear linear guide rail and the rear second guide rail have the same structure. The rear slider limit block and the rear small limit block 40 have the same structure.

[0057] Re-reference Figure 1The system is equipped with three pulleys: a first pulley 20, a second pulley 28, and a third pulley 46. One pulley serves as the first pulley 20, and the other two pulleys are assembled on the same shaft to form a pulley block. The first pulley 20 is mounted on the first fixture 182 of the rear section via a first stand, and the pulley block is mounted on the rear end of the base 27 via a second stand. The pull ring 42 is mounted on the rear end of the rear measuring plate 23. One end of the pull rope 29 is connected to the pull ring 42. After the pull rope 29 passes through the second pulley 28 of the pulley group, it passes through the first pulley 20 and then passes through the third pulley 46 of the pulley group. The end of the pull rope 29 is connected to the counterweight block 30. The cylinder 32 is provided directly below the counterweight block 30. When the cylinder rod is extended, the counterweight block 30 is lifted up. When the cylinder rod is contracted, the counterweight block 30 moves downward under its own weight, and then the rear section measuring plate 23 and the rear section first clamp 182 are pulled toward the rear end of the guide rail groove 12 by the pull rope 29, so as to straighten the flexible shaft assembly clamped in the front section measuring mechanism and the rear section measuring mechanism. By simultaneously pulling the rear measuring plate and the rear first clamp 182 through a pull rope 29, the length of the flexible shaft assembly and the three lengths of the flexible shaft assembly can be measured: the length of the middle section of the flexible shaft (the distance between the clamping surfaces of the connectors at both ends of the hose), the length of the front section of the flexible shaft (the distance from the front end of the flexible shaft to the clamping surface of the connector at the front end of the hose), and the length of the rear section of the flexible shaft (the distance from the rear end of the flexible shaft to the clamping surface of the connector at the rear end of the hose). Preferably, a lifting platform 31 is also included, and the lifting platform 31 is a box with an opening at the top, the opening of which faces upward, and the bottom is connected to the cylinder rod. During operation, the lifting platform 31 is used to support the counterweight 30. When the cylinder rod is extended, the lifting platform 31 lifts the counterweight 30. After the cylinder rod is retracted, the counterweight 30 falls back into the lifting platform 31 to prevent the counterweight 30 from shaking out of the lifting range of the cylinder 32 during the lifting process. Furthermore, a foot valve 33 is also included to control the telescopic state of the cylinder 32.

[0058] Preferably, the base 27 is an aluminum profile plate, and the first connecting member can be an aluminum profile, the upper part of which is fixedly connected to the front section measuring mechanism, and the lower part is locked on the guide rail groove 12 through the aluminum profile connecting member. During operation, the front section measuring mechanism is adjusted to a position and then fixed, serving as a fixed part. The rear section measuring mechanism can move on the guide rail groove 12, serving as a movable part. After the two ends of the flexible shaft assembly are clamped in the front section measuring mechanism and the rear section measuring mechanism, the counterweight block 30 is lowered to pull the rear section measuring mechanism to move, and then the flexible shaft assembly is straightened, and then the magnetic grating digital display, the front section digital display scale, the rear section digital display scale, the front section viscous scale, the rear section viscous scale and other measuring tools are observed to obtain the relevant information of the flexible shaft assembly.

[0059] Measurement data.

[0060] Reference Figure 6 and Figure 7The structure of the front-end measuring mechanism is identical to that of the rear-end measuring mechanism, comprising a front-end measuring plate 1, a front-end wire rope clamp 6, a front-end digital display scale 4, a hose front-end joint positioning module 9, a front-end linear guide 3, and a front-end viscous scale 2. While the views illustrated in this embodiment may differ slightly in detail, the overall structure remains unchanged. Therefore, both are assembled in a substantially symmetrical manner on the guide rail groove 12. For example, the hose front-end joint positioning module 9 is located at the rear end of the front-end measuring plate 1, and the hose rear-end joint positioning module 13 is located at the front end of the rear-end measuring plate 23. Therefore, the specific structure of the front-end measuring mechanism will not be repeated.

[0061] Refer again Figure 7 and Figure 8 In some flexible shaft assembly products, several pipe clamp bushings 34 are installed in the middle of the hose. These bushings must be fixed to the specified position of the hose according to process requirements. As an added feature, this flexible shaft assembly inspection device verifies the position of the pipe clamp bushings 34 by adding a pipe clamp bushing positioning block 35 and a mid-section viscous scale 11. The top of the pipe clamp bushing positioning block 35 is provided with a positioning groove 357 for clamping and positioning the pipe clamp bushings, and the lower portion is slidably connected to the guide groove 12. The mid-section viscous scale 11 is installed on the upper surface of the guide groove 12 and is arranged along the length of the guide groove 12. The lower structure of the pipe clamp bushing positioning block 35 is identical to that of the large stopper 26, including a fourth mounting slot 353 that mates with the second guide rib 121 of the guide rail slot 12. The lower portion of the pipe clamp bushing positioning block 35 is divided into a third half block 354 and a fourth half block 355. The third and fourth half blocks 354, 355 are connected by a guide stud 351 and locked to the guide rail slot 12 by a locking bolt 352. During use, the assembly position of the pipe clamp bushing 34 is detected by adjusting the locking bolt 352 to secure the plurality of pipe clamp bushing positioning blocks 35 to designated positions on the guide rail slot 12, according to the assembly technical requirements of the pipe clamp bushing 34. The third half block 354 also includes a pointer stopper 36 that extends above the mid-section viscous scale 11. The pointer stopper 36 points to the mid-section viscous scale 11 to determine the position of the pipe clamp bushing positioning block 35. Preferably, the large limiting blocks 26 are respectively provided at both ends of the pipe clamp bushing positioning block 35 to assist in fixing the position of the pipe clamp bushing positioning block 35 .

[0062] A calibration method for a flexible shaft assembly detection device, a calibration method for a magnetic scale digital display 24: first, set the magnetic scale digital display 24 to absolute measurement mode, then move the rear measuring plate 23 closer to the front measuring plate 1 so that the end faces of the front measuring plate 1 and the rear measuring plate 23 are in contact, then set the initial value of the magnetic scale digital display 24 to zero, and then press the initial value reset key.

[0063] Calibration method of the front digital display scale 4: first set the front digital display scale 4 to absolute measurement mode, remove the hose front end joint positioning module 9, then move the wire rope front clamp 6 to the rear end of the front section measuring plate 1, so that the end face of the front pointer 5 is aligned with the rear end face of the front section measuring plate 1, then set the initial value of the front digital display scale 4 to zero, and finally install the hose front end joint positioning module 9 back to its original position.

[0064] The calibration method of the rear digital scale 19 is the same as that of the front digital scale 4.

[0065] A method for using the flexible shaft assembly detection device to perform sampling measurement of flexible shafts, wherein the initial mode of each digital display ruler is adjusted to the absolute measurement mode, and the measurement operation steps include:

[0066] S1. Clamping and straightening the flexible shaft assembly product: first confirm whether the cylinder 32 is in the extended state to support the counterweight 30, otherwise step on the foot valve 33 to raise it, and then respectively clamp the connector clamping surfaces at both ends of the hose (product) 10 into the hose front end connector positioning module 9 and the hose rear end connector positioning module 13; then clamp the front section of the wire rope (product) 8 and the rear section of the wire rope (product) 16 into the front section of the wire rope clamp 6 and the rear section of the wire rope clamp 18 respectively, and then according to the flexible shaft assembly product drawing, the front section of the wire rope clamp 6 moves with the wire rope until the reading of the front section digital display scale 4 is the standard length value of the front section flexible shaft, and then fix the front section of the wire rope clamp 6 through its slider limit block; finally, step on the foot valve 33 to retract the cylinder rod, and the counterweight 30 droops to straighten the hose (product) 10 and the wire rope;

[0067] S2. Perform one or more of the following measurement methods separately according to the measurement requirements:

[0068] 1) Measuring method of the middle section flexible shaft length: According to the flexible shaft assembly product drawing, observe whether the reading of the magnetic scale digital display meter 24 is within the standard range of the middle section flexible shaft length. Otherwise, the measured flexible shaft assembly product is defective, and then fill in the measurement data in the measurement record book;

[0069] 2) Measuring method for the length of the front and rear flexible shafts: According to the flexible shaft assembly product drawing, set the initial value of the rear digital scale 19 to the standard length of the front flexible shaft. When measuring, observe whether the reading of the rear digital scale 19 is within the standard range of the sum of the front and rear flexible shaft lengths. Otherwise, the measured flexible shaft assembly product is defective. Then fill in the measurement record book;

[0070] 3) Measuring method of flexible shaft assembly stroke: first pull out the front section of the wire rope (product) 8 from the front section fixture 6, then pull the rear section fixture 18 to move the rear section of the wire rope (product) 16; when the reading of the rear section digital display scale 19 reaches the standard value of the rear section, switch to relative measurement mode and reset it to zero, then continue to pull the wire rope and the rear section fixture 18, observe the reading of the rear section digital display scale 19 in the maximum push-pull range, and compare it with the range marked on the drawing to determine whether the flexible shaft assembly product is defective, and then fill in the measurement data in the measurement record book;

[0071] 4) Measuring method for the position of the pipe clamp bushing: ensure that the front section of the wire rope (product) 8 is clamped into the front section of the wire rope clamp 6, and each pipe clamp bushing (product) 34 is in the clamping groove of the corresponding pipe clamp bushing positioning block 35. The hose and wire rope are simultaneously in the start-up straightening state. Observe the scale reading of the middle section of the viscous scale 11 pointed by the pointer of the corresponding pointer limit block 36, which is the distance position from each pipe clamp bushing (product) 34 to the front end connector of the hose (product) 10, and then fill in the measurement data in the measurement record book;

[0072] S3. After each measurement in step S2 is performed, step on the foot valve 33 to raise the lifting platform 31 to support the counterweight 30, and then remove the product to be tested to complete the test.

[0073] A method for using the flexible shaft assembly detection device to quickly measure flexible shaft assemblies in batches, the measurement operation steps including:

[0074] S1. Clamping and straightening the flexible shaft assembly product: first confirm whether the cylinder is in the extended state to support the counterweight 30, otherwise step on the foot valve 33 to raise it, and then respectively clamp the connector clamping surfaces at both ends of the hose (product) 10 into the hose front end connector positioning module 9 and the hose rear end connector positioning module 13; then clamp the front section of the wire rope (product) 8 and the rear section of the wire rope (product) 16 into the front section of the wire rope clamp 6 and the rear section of the wire rope clamp 18 respectively, and then according to the flexible shaft assembly product drawing, pull the front section of the wire rope clamp 6 to move with the wire rope, until the reading of the front section digital display scale 4 is the standard length value of the front section flexible shaft, fix the front section of the wire rope clamp 6 through its slider limit block; finally, step on the foot valve 33 to retract the cylinder rod, and the counterweight 30 will droop to straighten the hose (product) 10 and the wire rope;

[0075] S2. Switch each digital display ruler to relative measurement mode: the fixed front-segment digital display ruler 4 measurement mode does not need to be switched; wherein, according to the drawing of the soft shaft assembly product being tested, move the rear-segment measuring plate 23 so that the reading of the magnetic scale digital display meter 24 is equal to the standard value of the middle-segment soft shaft length, and then switch the magnetic scale digital display meter 24 to the relative measurement mode, that is, set the reading of the magnetic scale digital display meter 24 to zero at the standard position. Similarly, switch the rear-segment digital display ruler 19 to the relative measurement mode; in step S2, observe whether the readings of the magnetic scale digital display meter 24 and the rear-segment digital display ruler 19 are within the tolerance range marked on the drawing, otherwise the tested soft shaft assembly product is defective; wherein, the reading of the magnetic scale digital display meter 24 represents the measured length of the middle-segment soft shaft, and the reading of the rear-segment digital display ruler 19 represents the sum of the measured lengths of the front and rear segments of the soft shaft;

[0076] S3. Perform the following measurement method according to the measurement requirements:

[0077] 1) Quick measurement method for short flexible shaft assemblies: According to the lower limits of the lengths of each section (front section, middle section, and rear section) marked on the drawing of the flexible shaft assembly being tested, move the rear section measuring plate 23 and the wire rope rear section clamp 18 to the corresponding lower limit positions of the two products and then fix their lower limit blocks closely to them. If the corresponding dimension of the flexible shaft assembly product is too short, the hose connector positioning module or wire rope clamp at one end cannot be installed, so the short flexible shaft assembly product can be detected;

[0078] 2) A quick measurement method for detecting the position of the pipe clamp bushing: According to the number of pipe clamp bushings 34 clamped by the soft shaft assembly product being inspected, a corresponding number of pipe clamp bushing positioning blocks 35 and their pointer limit blocks 36, as well as double the number of large limit blocks 26, are installed on the guide rail groove; in this embodiment, four pipe clamp bushing positioning blocks 35 are installed, and according to the lower limit of the position of the pipe clamp bushing 34 marked on the drawing of the soft shaft assembly product being inspected, the four sets of pointer limit blocks 36 with the pipe clamp bushing positioning blocks 35 are adjusted to the upper and lower limits of the corresponding pipe clamp bushing 34 installation position, and then the upper and lower limit large limit blocks 26 are installed accordingly and fixed to both sides close to each pointer limit block, and each pipe clamp bushing (product) 34 is observed to see whether it can be stuck in the positioning groove 357 at the top of the corresponding pipe clamp bushing positioning block 35. If the four pipe clamp bushings 34 cannot be stuck in the positioning groove 357 at the same time, the inspected soft shaft assembly product is defective.

[0079] In the above, you can generally first determine whether the flexible shaft assembly is too short. If the length of the flexible shaft assembly meets the requirements, then quickly measure the position of the pipe clamp bushing.

[0080] The structure of the flexible shaft assembly detection device can be used to measure whether the total length of the flexible shaft assembly, the length of each section, the stroke, the position of the pipe clamp bushing, etc. meet production requirements. The flexible shaft assembly detection device can also be operated in different ways to quickly measure shorter flexible shaft assemblies and the position of the pipe clamp bushing. In other words, through the flexible shaft assembly detection device and appropriate operation of the flexible shaft assembly detection device, both sampling and batch measurement of flexible shaft assembly products can be achieved, greatly enriching the functionality of the flexible shaft assembly detection device and significantly surpassing existing flexible shaft assembly detection devices in terms of functionality.

[0081] Those skilled in the art will recognize that numerous variations to the foregoing description are possible, and that the examples and figures are intended only to describe one or more specific implementations.

[0082] Although what is considered to be an exemplary embodiment of the present invention has been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention, and that the detection device can also detect push-pull flexible shaft assembly products by simply replacing the corresponding fixture. In addition, many modifications can be made to adapt specific situations to the teachings of the present invention without departing from the central concept of the invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may also include all embodiments and their equivalents that fall within the scope of the present invention.

Claims

1. A flexible shaft assembly detection device, comprising a flexible shaft assembly straightening assembly, a base, a rear-stage measuring mechanism, a guide rail groove, a magnetic grating digital display, a viscous magnetic scale, and a magnetic scale probe; the flexible shaft assembly straightening assembly is used to pull the rear-stage measuring mechanism, and includes a counterweight, a pull rope, a pull ring, a pulley, and a cylinder; the guide rail groove is arranged along the length direction of the base; the rear-stage measuring mechanism includes a rear-stage measuring plate, a rear-stage wire rope clamp, and a rear-stage linear guide rail; the lower portion of the rear-stage measuring plate is slidably connected to the guide rail groove, and the upper surface is provided with the rear-stage linear guide rail; the rear-stage wire rope clamp is slidably mounted on the rear-stage linear guide rail, and its upper end is provided with a T-shaped clamp; the characteristics are: It also includes a front-section measuring mechanism, which is fixed to the front end of the guide rail groove; the rear-section measuring mechanism is slidably installed in the guide rail groove behind the front-section measuring mechanism, and it also includes a rear-section digital display scale and a hose rear-end joint positioning module, the lower part of the hose rear-end joint positioning module is fixed to the front end of the rear-section measuring plate, and the upper part is provided with a bayonet; the rear-section digital display scale is installed on the left side of the rear-section measuring plate, and its digital display cursor is fixedly connected to the rear-section wire rope clamp through a connecting plate; the structure of the front-section measuring mechanism is the same as that of the rear-section measuring mechanism, and the two are assembled on the guide rail groove in an approximately symmetrical manner, and it includes a front-section measuring plate, a front-section wire rope clamp, a front-section digital display scale, a hose front-end joint positioning module, and a front-section linear guide; At least three pulleys are provided, which are divided into a first pulley, a second pulley, and a third pulley. The second pulley and the third pulley are assembled on the same rotating shaft to form a pulley group; the first pulley is mounted on the first clamp of the rear section through a first stand, and the pulley group is mounted on the rear end of the base through a second stand; the pull ring is mounted on the rear end of the rear measuring plate, one end of the pull rope is connected to the pull ring, the pull rope is wound around the second pulley, then around the first pulley, and then around the third pulley, the end of the pull rope is connected to the counterweight block, and the cylinder is provided below the counterweight block; The rear section clamp of the wire rope includes a rear section first slider, a rear section first clamp, a rear section pointer, and a rear section slider limit block. The lower part of the rear section first slider is an N-shaped structure and is slidably mounted on the rear section linear guide rail. The top surface is provided with the rear section first clamp, the front part is provided with the rear section pointer, and the rear part is provided with the connecting plate. The two rear section slider limit blocks are slidably mounted on the rear section linear guide rail, and locking bolts are provided on the side surfaces thereof. The top of the rear section first clamp is provided with the T-shaped clamp. The rear measuring plate and the rear first clamp are pulled simultaneously by a pull rope to measure the length of the flexible shaft assembly and the three lengths of the flexible shaft assembly: the middle section flexible shaft length, the front section flexible shaft length, and the rear section flexible shaft length.

2. A flexible shaft assembly detection device according to claim 1, characterized in that: The guide rail groove is provided with a U-shaped long groove, and both sides of the interior of the U-shaped long groove are respectively provided with second guide ribs extending along the length direction thereof.

3. A flexible shaft assembly detection device according to claim 2, characterized in that: It also includes a second connecting member, which includes a large limit block and a second slider. The lower part of the second slider is provided with a second assembly groove that matches the second guide rib, and the upper part is fixed with a rear measuring plate; the two large limit blocks are slidably installed in the U-shaped long groove, and are respectively arranged at both ends of the second slider, and the two sides of the lower part are respectively provided with a third assembly groove that matches the second guide rib, and a limit bolt is provided on the side.

4. The flexible shaft assembly detection device according to claim 1, characterized in that: The hose rear end joint positioning module includes a rear section first connecting seat, a rear section second guide rail, a rear section second clamp, a rear section second sticky scale, and a rear section small limit block. The lower part of the rear section first connecting seat is fixed to the front end of the rear section measuring plate, and the left side is provided with the rear section second sticky scale arranged along its length direction, and the upper surface of the rear section second guide rail is also fixed; the lower part of the rear section second clamp is slidably connected to the rear section second guide rail, and the upper part is provided with a U-shaped bayonet; the two rear section small limit blocks are slidably installed on the rear section second guide rail and are respectively arranged at both ends of the rear section second clamp, and the side of the rear section small limit block is provided with a locking bolt; the rear section second clamp is also provided with a second pointer, which extends downward to the rear section first connecting seat and is directly in front of the rear section second sticky scale.

5. The flexible shaft assembly detection device according to claim 2, characterized in that: It also includes a pipe clamp bushing positioning block and a middle section adhesive scale. The top of the pipe clamp bushing positioning block is provided with a positioning groove, and the lower part is provided with a fourth mounting groove that is matched with the second guide rib of the guide rail groove; the middle section adhesive scale is installed on the upper surface of the guide groove and arranged along the length direction of the guide groove; the lower part of the pipe clamp bushing positioning block is also provided with a pointer limit block, and the pointer limit block extends to the top of the middle section adhesive scale.

6. A flexible shaft assembly detection device according to claim 5, characterized in that: The lower part of the pipe clamp bushing positioning block is divided into a third half block and a fourth half block. The third half block is provided with a screw hole for connecting the guide stud, and the fourth half block is provided with a connecting hole corresponding to the screw hole, as well as a screw hole for connecting the locking bolt. The third half block is connected to the fourth half block through the guide stud, and then the locking bolt is tightened to move the third half block away from the fourth half block, thereby locking the pipe clamp bushing positioning block on the guide groove.

7. A calibration method for the flexible shaft assembly detection device according to claim 1, characterized in that: The calibration method of the magnetic scale digital display includes: first setting the magnetic scale digital display to absolute measurement mode, then moving the rear measuring plate closer to the front measuring plate so that the end faces of the front measuring plate and the rear measuring plate are in contact, then setting the initial value of the magnetic scale digital display to zero, and then pressing the initial value reset key; It also includes a calibration method for the front-end digital display scale: first set the front-end digital display scale to the absolute measurement mode, remove the hose front-end joint positioning module, then move the front-end clamp of the wire rope to the rear end of the front-end measuring plate, align the front-end pointer end face with the rear end face of the front-end measuring plate, then set the initial value of the front-end digital display scale to zero, and finally install the hose front-end joint positioning module back to its original position.

8. A method for sampling and measuring a flexible shaft assembly using the flexible shaft assembly detection device according to claim 1, characterized in that: The initial mode of each digital ruler is set to absolute measurement mode. The measurement operation steps include: S1. Clamping and straightening the flexible shaft assembly: Use the extended cylinder rod to lift the counterweight, and then respectively clamp the connector clamping surfaces at both ends of the hose to be tested into the hose front connector positioning module and the hose rear connector positioning module; then clamp the front and rear sections of the wire rope into the front and rear section clamps of the wire rope respectively. Then, according to the flexible shaft assembly product drawing, move the front section clamp with the wire rope until the reading on the front section digital scale reaches the standard length value of the front section flexible shaft, and then fix the front section clamp of the wire rope; finally, control the cylinder rod to retract, and the counterweight will droop to straighten the hose and wire rope; S2. Perform one or more of the following measurement methods separately according to the measurement requirements: 1) Measurement method of the middle section flexible shaft length: According to the flexible shaft assembly product drawing, observe whether the reading of the magnetic scale digital display is within the standard range of the middle section flexible shaft length. Otherwise, the measured flexible shaft assembly product is defective, and then fill in the measurement data in the measurement record book; 2) Measuring method for the length of the front and rear flexible shafts: According to the flexible shaft assembly product drawing, set the initial value of the rear digital scale to the standard length of the front flexible shaft. When measuring, observe whether the reading of the digital display of the rear digital scale is within the standard range of the sum of the lengths of the front and rear flexible shafts. Otherwise, the measured flexible shaft assembly product is defective. Then fill in the measurement data in the measurement record book; 3) Method for measuring the stroke of the flexible shaft assembly: first pull the front section of the wire rope out of the front section fixture, then push and pull the rear section fixture to move the rear section of the wire rope; when the digital display of the rear section reaches the standard value, switch to the relative measurement mode and reset it to zero, then continue to push and pull the rear section fixture, observe the reading of the digital display of the rear section in the maximum push-pull range, and compare it with the range marked on the drawing to determine whether the flexible shaft assembly product is defective, and then fill in the measurement data in the measurement record book; 4) Method for measuring the position of the pipe clamp bushing: ensure that the front section of the wire rope is clamped into the front section of the wire rope clamp, and the pipe clamp bushing is in the corresponding positioning groove of the pipe clamp bushing positioning block. The hose and wire rope are in the starting and straightening state at the same time. Observe the position reading of the pipe clamp bushing positioning block, which is the distance from the pipe clamp bushing to the front end connector of the hose, and then fill in the measurement data in the measurement record book.

9. A method for rapidly batch measuring flexible shaft assemblies using the flexible shaft assembly detection device according to claim 1, characterized in that: The measurement operation steps include: S1. Clamping and straightening the flexible shaft assembly product: Use the cylinder rod to extend to lift the counterweight block, and then respectively clamp the connector clamping surfaces at both ends of the hose assembly to be tested into the hose front connector positioning module and the hose rear connector positioning module; then clamp the front section of the wire rope and the rear section of the wire rope into the front section clamp and the rear section clamp of the wire rope respectively. Then, according to the flexible shaft assembly product drawing, push and pull the front section clamp of the wire rope and move the wire rope until the reading of the front section digital scale reaches the standard length value of the front section flexible shaft, and then fix the front section clamp of the wire rope; finally, control the cylinder rod to retract, and the counterweight block will droop to straighten the pressure-resistant hose and wire rope; S2. Switch each digital scale to relative measurement mode: According to the drawing of the flexible shaft assembly product being tested, move the rear measuring plate so that the reading of the magnetic scale digital display is equal to the standard value of the middle section flexible shaft length. Then switch the magnetic scale digital display to relative measurement mode, that is, set the magnetic scale digital display reading to zero at the standard position. Similarly, switch the rear digital scale to relative measurement mode. Observe whether the readings of the magnetic scale digital display and the rear digital scale are within the tolerance range marked on the drawing. Otherwise, the tested flexible shaft assembly product is defective. S3. Perform the following measurement method according to the measurement requirements: 1) Quick measurement method for short flexible shaft assemblies: According to the lower limits of the lengths of each section marked on the drawing of the flexible shaft assembly being tested, move the rear section measuring plate and the rear section clamp of the wire rope to the corresponding lower limit positions of the two products, and then fix their lower limit blocks close to them. If the corresponding size of the flexible shaft assembly product is too short, the hose connector positioning module or wire rope clamp at one end cannot be installed, so the short flexible shaft assembly product can be detected; 2) A quick measurement method for detecting the position of the pipe clamp bushing: According to the number of pipe clamp bushings clamped by the flexible shaft assembly product being tested, a corresponding number of pipe clamp bushing positioning blocks and their pointer limit blocks, as well as double the number of large limit blocks, are installed on the guide rail groove; according to the lower limit of the position of the pipe clamp bushing marked on the drawing of the flexible shaft assembly product being tested, the pointer limit block with the pipe clamp bushing positioning block is adjusted to the upper and lower limits of the pipe clamp bushing installation position respectively, and then the upper and lower limit large limit blocks are fixed close to both sides of the pointer limit block accordingly, and it is observed whether each pipe clamp bushing can be stuck into the corresponding positioning groove on the top of the pipe clamp bushing positioning block. If the pipe clamp bushing cannot be stuck in the positioning groove, the tested flexible shaft assembly product is a defective product.

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