A size batch measuring device and measuring method for steel wire braided hose

Abstract

The present invention discloses a size batch measuring device for steel wire braided rubber hose and a measuring method thereof, comprising a machine body and a transmission mechanism, a visual inspection mechanism, a pipe diameter measuring mechanism, a roundness measuring mechanism and a PLC controller arranged on the machine body. The transmission mechanism is used to simultaneously convey multiple groups of steel wire braided rubber hoses to be tested, the pipe diameter measuring mechanism is used to clamp and position the steel wire braided rubber hoses and measure the inner and outer diameters, the visual inspection mechanism is used to detect the position of the steel wire braided rubber hoses after positioning, the roundness measuring mechanism is used to measure the roundness of the pipe wall of the steel wire braided rubber hose, and the transmission mechanism, the visual inspection mechanism and the pipe diameter measuring mechanism are all controlled by the PLC controller. The present invention realizes batch and multi-size measurement of steel wire braided rubber hoses through one device, the equipment is integrated, and multiple size measurement quality inspections are carried out successively. The operation during measurement is highly intelligent, which is convenient for the staff to timely control the equipment operation status and product measurement results.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, and in particular to a batch size measuring device for a wire braided rubber hose and a measuring method thereof. Background Art

[0002] The wire braided hose structure is composed of a liquid-resistant synthetic rubber inner layer, a middle rubber layer, a Ⅰ or Ⅱ or Ⅲ wire braided reinforcement layer, and a synthetic rubber outer layer with excellent weather resistance. The hose is made of special synthetic rubber, has excellent oil resistance, heat resistance, and aging resistance, and has high bearing pressure, excellent pulse performance, and is soft to use but has little deformation under pressure. Based on its characteristics, it is mainly used for mine hydraulic supports and oil field mining, and is suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and various industrial departments. The mechanized and automated hydraulic systems convey petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel, lubricating oil) liquids, water-based liquids (such as emulsions, oil-water emulsions, water), gases, etc. and liquid transmission with a certain pressure and temperature.

[0003] Due to the special application places of wire braided hoses, their dimensions need to be inspected after production. The dimensions that need to be inspected include length, wall thickness, etc. The size measurement of wire braided hoses in the prior art is manual sampling. Inspectors use tools such as vernier calipers to measure the dimensions of wire braided hoses. The actual operation of size measurement and data recording are time-consuming and labor-intensive. Sometimes multiple measurements are required to ensure the accuracy of the measurement data. The work efficiency is low and the measurement quality cannot be guaranteed. In addition, due to manual sampling and a small number of inspections, it is difficult to control the quality of products produced in batches, especially in large batches. For this reason, we provide a size batch measuring device for wire braided hoses and a measuring method thereof to solve the above problems. Summary of the invention

[0004] In response to the problems existing in the above-mentioned prior art, the present invention provides a batch size measuring device and a measuring method for steel wire braided hoses, which can perform batch and continuous size measurement and inspection of multiple sizes of steel wire braided hoses, avoiding the measurement errors and low efficiency that are prone to occur in traditional manual sampling. Batch measurement increases the number of measurements, which can further ensure product quality and is suitable for high-quality production of large quantities of hoses.

[0005] In order to achieve the above-mentioned object, the present invention adopts a size batch measuring device for steel wire braided rubber hose, which includes a machine body and a transmission mechanism, a visual detection mechanism, a pipe diameter measuring mechanism, a roundness measuring mechanism and a PLC controller arranged on the machine body;

[0006] The transmission mechanism is used to simultaneously convey multiple groups of steel wire braided hoses to be tested, and includes multiple conveying rollers arranged horizontally and parallelly at equal intervals. The conveying roller shafts are rotatably mounted on the machine body, and the outer wall is provided with multiple conveying slots distributed at equal intervals along the axial direction;

[0007] The pipe diameter measuring mechanism is used for clamping and positioning the steel wire braided rubber hose and measuring the inner and outer diameters. It is arranged at one end of the machine body, and the other end of the machine body is a feeding port. The pipe diameter measuring mechanism includes a rotating part, a clamping part and a signal part. The rotating part includes a reduction motor and a base plate corresponding to the transmission slot position one by one. The reduction motor and the corresponding base plate are respectively arranged on the inner and outer sides of the machine body, and the two are connected by a coupling; the clamping part includes a base installed at the center of the base plate, and a touch pressure rod is sleeved on the base through a spring. The outer side of the touch pressure rod is circumferentially hinged with a plurality of evenly distributed connecting rods, and the other end of each connecting rod is rotatably connected to a transmission rod, and the end of the transmission rod is hinged with a clamping and measuring assembly, and the middle part is rotatably connected to a support frame, and the above-mentioned support frames are all fixed on the base plate; the signal part includes a signal lamp installed on the machine body, and the signal lamp is located above the base plate, and the number of the signal lamps corresponds one by one. The output end of the signal lamp is electrically connected to the input end of the PLC controller;

[0008] One end of the touch-pressure rod is conical, and an inner diameter indicating scale line is arranged on the outer wall, and the other end is hollow inside and slidably sleeved on the base. A guide rod is arranged circumferentially on the outer wall of the base, and a guide groove matching with the guide rod is opened in the hollow end of the touch-pressure rod;

[0009] The clamping and measuring assembly includes a clamping seat, a touch-pressure switch, an elastic plate, a clamping plate, a steel ball and a laser distance sensor which are sequentially distributed from the outside to the inside, wherein one side of the clamping seat is hinged to the end of the transmission rod, and the end is provided with a laser distance sensor, and the center of the other side is provided with a touch-pressure switch, the elastic plate is concave, and the two ends are movably connected to the clamping seat, the middle part is fixedly connected to the middle part of one side of the clamping plate, and the steel balls are installed in a matrix on the other side of the clamping plate;

[0010] When the pipe diameter measuring mechanism (4) and the clamping measuring assembly are measuring, the steel wire braided rubber hose is first sent to the touch pressure rod (45) during the transfer process. In the process of pushing the touch pressure rod (45), the connecting rod drives one end of the transmission rod (43) to rotate, and the clamping measuring assembly is rotated and pushed toward the pipe wall, gradually clamping the steel wire braided rubber hose until the signal light (47) lights up and the hose completely reaches the detection position. The outer diameter value of the steel wire braided rubber hose can be obtained by subtracting the data measured by the current laser distance sensor (414) from the diameter of the circle where the original clamping plate (412) is located.

[0011] The visual inspection mechanism is used to detect the position of the wire braided hose after positioning, and is arranged on the machine body and located on the upper side of the transmission mechanism;

[0012] The roundness measuring mechanism is used to measure the roundness of the wall of the wire braided hose and is installed on the visual inspection mechanism;

[0013] The transmission mechanism, visual inspection mechanism and pipe diameter measuring mechanism are all controlled by a PLC controller, and the PLC controller is installed on the outer wall of the machine body.

[0014] As a further optimization of the above solution, one end of the conveying roller rotates through gears and chains, and the output end is connected to a driving device, which is installed on the outer wall of the body and its input end is electrically connected to the output end of the PLC controller.

[0015] As a further optimization of the above scheme, the visual detection mechanism includes an electric telescopic rod, a hanging rod, a steel plate, a visual sensor and a length indicator rod distributed in sequence from top to bottom. The hanging rod is horizontally arranged and fixedly installed on the machine body. The electric telescopic rod is installed in the middle of the upper side of the hanging rod, and its telescopic end passes through the hanging rod and is vertically connected to the steel plate. There are two visual sensors, which are respectively installed on the two end surfaces of the steel plate through brackets. The input end of the electric telescopic rod is electrically connected to the output end of the PLC, and the output end of the visual sensor is electrically connected to the input end of the PLC controller.

[0016] As a further optimization of the above scheme, the length indicating rod is arranged below the conveying roller and is slidably connected to the machine body. A horizontal slide groove matching the length indicating rod is provided on the machine body. Indicating scales are provided on both sides of the slide groove, and the value of the indicating scale gradually decreases from the feeding port to the pipe diameter measuring mechanism.

[0017] As a further optimization of the above scheme, a roundness measuring mechanism is installed on the side of the steel plate close to the clamping measuring assembly. The roundness measuring mechanism includes a light sensor and a roundness detection plate. The roundness detection plate is vertically installed on the lower surface of the steel plate, and the lower side is provided with equally spaced measuring slots along the length direction. The measuring slots correspond one-to-one to the conveying slots on the conveying roller. Pressure sensors are installed on the inner walls at both ends of the opening of the above-mentioned measuring slots, and the output end of the pressure sensor is connected to the input end of the PLC controller by Bluetooth.

[0018] As a further optimization of the above solution, an alarm light for displaying whether the test result is qualified or not is installed on the machine body, and the input end of the alarm light is electrically connected to the output end of the PLC controller.

[0019] A measuring method for the above-mentioned steel wire braided hose size batch measuring device comprises the following steps:

[0020] S1. Preparation: Start the machine through the PLC controller, move the length indicator rod to the measuring length and lock it;

[0021] S2. Loading: Deliver multiple steel wire braided hoses to the conveying slot of the first conveying roller at the loading port;

[0022] S3. Clamping and positioning: The wire braided hose moves into the machine body along with the transmission roller until it moves to the pipe diameter measuring mechanism and is clamped by the clamping and measuring assembly. The outer diameter is measured while clamping, and the touch switch is triggered, and the signal light turns on.

[0023] S4. Length and inner diameter detection: After all the signal lights are on, the light sensor sends a signal to the PLC controller, which first controls the electric telescopic rod to push the steel plate down. During the steel plate's descent, the two visual sensors take pictures of both ends of the steel wire braided hose, collect the inner diameter information at the end connected to the touch-pressure rod, and collect the length information at the other end. The information in the photo is converted into a digital signal and transmitted to the PLC controller;

[0024] S5. Roundness measurement: After the steel plate descends to the point where the pressure sensor detects data, the PLC controller sends a message to the electric telescopic rod to stop the action. At this time, the roundness detection plate is in contact with the steel wire braided hose, and the reduction motor starts to rotate the steel wire braided hose. During the rotation, the pressure value generated by the outer wall of the hose and the pressure sensor in the semicircular groove is used as the direct data for measuring the roundness. If the value fluctuation is within the allowable range, the roundness measurement result is qualified, otherwise it is a defective product;

[0025] S6. Measurement results: After step S, the PLC controller controls all driving devices of the machine to stop operating. If the test result is qualified, the alarm light will turn green, if it is unqualified, the red light will turn red and the alarm will sound. At the same time, the PLC controller sends the data results to the host computer;

[0026] S7. Unloading: The PLC controller controls the electric telescopic rod to pull up the steel plate and drives the conveying roller to rotate in the opposite direction, so that the steel wire braided hose is moved out in the opposite direction, and the measurement ends.

[0027] The invention discloses a batch size measuring device for steel wire braided rubber hoses and a measuring method thereof. By opening a conveying slot on a conveying roller, the steel wire braided rubber hoses are moved in batches by rotating the roller, thereby realizing batch feeding and discharging of the steel wire braided steel pipes.

[0028] The present invention provides a batch size measuring device and a measuring method for a wire braided rubber hose, wherein the pipe diameter measuring mechanism has the following functions: first, to realize the locking and positioning of the wire braided rubber hose; second, to trigger a signal light to light up, triggering the start conditions for subsequent roundness measurement and length detection; and third, to realize the measurement of direct data of the outer diameter of the wire braided rubber hose during the process of clamping the wire braided rubber hose using a clamping part.

[0029] The present invention discloses a batch size measuring device and a measuring method for steel wire braided hoses, which realize batch and multi-size measurement of steel wire braided hoses through one device. The device is integrated, and multiple size detection and quality inspection are carried out successively. The next action of the device is automatically triggered by monitoring data such as sensor data and light intensity, so as to realize continuous measurement and inspection between sizes. The device has a high degree of intelligence, reduces manual operation, and provides timely feedback on problems arising during the measurement process, so as to facilitate the staff to timely control the equipment operation status and product measurement results.

[0030] With reference to the following description and drawings, a specific embodiment of the present invention is disclosed in detail, indicating the manner in which the principle of the present invention can be adopted. It should be understood that the scope of the embodiment of the present invention is not limited thereby, and the embodiment of the present invention includes many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 For the present invention Figure 1 A in the enlarged view;

[0033] Figure 3 For the present invention Figure 1 The enlarged view of point B in the figure;

[0034] Figure 4 It is a front view of the present invention;

[0035] Figure 5 A top view of the present invention;

[0036] Figure 6 It is a three-dimensional structural schematic diagram of the pipe diameter measuring mechanism in the present invention;

[0037] Figure 7 It is a front view of the pipe diameter measuring mechanism in the present invention;

[0038] Figure 8 It is a side view of the roundness detection plate of the present invention;

[0039] Fig. 9 It is a circuit control block diagram of the present invention.

[0040] In the figure: 1. body; 2. transmission mechanism; 21. conveying roller; 22. conveying slot; 3. visual detection mechanism; 31. electric telescopic rod; 32. suspension rod; 33. steel plate; 34. visual sensor; 35. length indicator rod; 4. pipe diameter measuring mechanism; 41. reduction motor; 42. base plate; 43. transmission rod; 44. base; 45. touch pressure rod; 46. support frame; 47. signal light; 48. guide rod; 49. clamping seat; 410. touch pressure switch; 411. elastic plate; 412. clamping plate; 413. steel ball; 414. laser ranging sensor; 5. roundness measuring mechanism; 51. light sensor; 52. roundness detection plate; 53. measuring slot; 54. pressure sensor; 6. PLC controller; 7. alarm light. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0042] It should be noted that when an element is referred to as being "disposed on, provided with" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected, connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. "Fixed connection" means a fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this article. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] Please refer to the instruction manual Figure 1-9 The present invention provides a technical solution: a size batch measuring device for a wire braided rubber hose, comprising a body 1 and a transmission mechanism 2, a visual inspection mechanism 3, a pipe diameter measuring mechanism 4, a roundness measuring mechanism 5 and a PLC controller 6 arranged on the body 1, and an alarm light 7 for displaying whether the inspection result is qualified or not is installed on the body 1.

[0045] Transmission mechanism 2 is used to simultaneously transport multiple groups of steel wire braided hoses to be tested, refer to Figure 4 and 5, including a plurality of conveying rollers 21 arranged horizontally and parallelly at equal intervals, the conveying rollers 21 are axially rotatably mounted on the machine body 1, and a plurality of conveying slots 22 distributed at equal intervals are axially arranged on the outer wall, one end of the conveying roller 21 rotates through a gear and a chain, and a driving motor is connected to the output end, the driving motor is mounted on the outer wall of the machine body 1, and its output end is electrically connected to the PLC controller 6, after the transmission mechanism 2 is started, a plurality of steel wire braided hoses can be simultaneously transferred into the machine body 1 through the transmission roller 21.

[0046] The pipe diameter measuring mechanism 4 is used to measure the wall thickness of the wire braided hose and is arranged at one end of the machine body 1. The other end of the machine body 1 is a feeding port. Figure 1 , 2, 6 and 7, the pipe diameter measuring mechanism 4 specifically includes a rotating part, a clamping part and a signal part, the rotating part includes a reduction motor 41 and a base plate 42 corresponding to the transmission slot 22, the reduction motor 41 and the corresponding base plate 42 are respectively arranged on the inner and outer sides of the body 1, and are connected to each other through a coupling; the clamping part includes a base 44 installed at the center of the base plate 42, and a touch pressure rod 45 is connected to the base 44 through a spring sleeve, one end of the touch pressure rod 45 is conical, and the outer wall is provided with an inner diameter indicating scale line, and the other end is hollow inside and slidably sleeved on the base 44, and a guide rod 48 is circumferentially provided on the outer wall of the base 44, and the hollow of the touch pressure rod 45 A guide groove matching with the guide rod 48 is opened at the end, and a plurality of evenly distributed connecting rods are hingedly connected to the outer side of the touch-pressure rod 45 in the circumferential direction. The other end of each connecting rod is rotatably connected to the transmission rod 43. The end of the transmission rod 43 is hinged with a clamping measurement component, and the middle part is rotatably connected with a support frame 46. The clamping measurement component includes a clamping seat 49, a touch-pressure switch 410, an elastic plate 411, a clamping plate 412, a steel ball 413 and a laser distance sensor 414, which are distributed from the outside to the inside. One side of the clamping seat 49 is hinged to the end of the transmission rod 43, and the end is provided with a laser distance sensor 414, and the touch-pressure switch is installed at the center of the other side. The spring plate 411 is concave, and both ends are movably connected to the clamping seat 49, and the middle part is fixedly connected to the middle part of one side of the clamping plate 412. The other side of the clamping plate 412 is equipped with a plurality of steel balls 413 distributed in a matrix. The support frame 46 is fixed on the base plate 42. The clamping plate 412 is an arc plate, and the plurality of clamping plates 412 are distributed in a circular shape with equal spacing. The signal part includes a signal lamp 47 installed on the machine body 1, and the output end of the signal lamp 47 is electrically connected to the input end of the PLC controller 6. One end of the touch-pressure rod 45 is conical, used to support the pipe mouth of the hose, and the other end is hollow inside and slidably sleeved on the base 44. A guide rod 48 is circumferentially arranged on the outer wall of the base 44, and a guide groove matching the guide rod 48 is opened at the hollow end of the touch-pressure rod 45. During operation, the steel wire braided rubber hose is first sent to the touch-pressure rod 45 during the transfer process. In the process of pushing the touch-pressure rod 45, the connecting rod rotates with one end of the transmission rod 43, and the clamping and measuring assembly is rotated and pushed toward the pipe wall, gradually clamping the steel wire braided rubber hose until the signal light 47 lights up and completely reaches the detection position. The outer diameter value of the steel wire braided rubber hose can be obtained by subtracting the data measured by the current laser ranging sensor 414 from the diameter of the circle where the original clamping plate 412 is located (this is a known fixed value).

[0047] The visual inspection mechanism 3 is used to detect whether the length and inner diameter of the steel wire braided tube are of standard size, referring to Figure 1 , 4The structure includes an electric telescopic rod 31, a suspension rod 32, a steel plate 33, a visual sensor 34 and a length indicating rod 35 which are sequentially arranged from top to bottom. The suspension rod 32 is horizontally arranged and fixedly mounted on the machine body 1. The electric telescopic rod 31 is installed at the middle part of the upper side of the suspension rod 32, and its telescopic end passes through the suspension rod 32 and is vertically connected to the steel plate 33. There are two visual sensors 34 which are respectively installed on the two end surfaces of the steel plate 33 through brackets. The input end of the electric telescopic rod 31 is electrically connected to the output end of the PLC, and the output end of the visual sensor 34 is electrically connected to the input end of the PLC controller 6. The length indicating rod 35 is arranged below the conveying roller 21 and is slidable with the machine body 1. The machine body 1 is dynamically connected, and a horizontal slide groove matched with the length indicator rod 21 is provided on the machine body 1. Indicator scales are provided on both sides of the slide groove, and the value of the indicator scale gradually decreases from the feeding port to the pipe diameter measuring mechanism 4; before the detection, the length indicator rod 35 is adjusted to the standard production length position of the batch of hoses, and two visual sensors 34 are used to respectively shoot the relative position of the steel wire braided hose and the length indicator rod 35, as well as the contact position of the steel wire braided hose and the touch-pressure rod 35, and the inner diameter indicator scale line is used as a reference standard. The picture taken at the detection position is compared with the basic image saved in the memory in advance, and the product with unqualified length and inner diameter at the current position can be detected.

[0048] The roundness measuring mechanism 5 is used to measure the roundness of the tube wall of the wire braided hose and is installed on the visual inspection mechanism 3. Figure 4 and 8 , specifically installed on the side of the steel plate 33 close to the clamping measurement component, the roundness measuring mechanism 5 includes a light sensor 51 and a roundness detection plate 52, the roundness detection plate 52 is vertically installed on the lower surface of the steel plate 33, and the lower side is provided with equally spaced measuring slots 53 along the length direction, the measuring slots 53 correspond one to one with the conveying slots 22 on the conveying roller 21, and pressure sensors 54 are installed on the inner walls of both ends of the opening of the above-mentioned measuring slots 53, and the output end of the pressure sensor 54 is connected to the input end of the PLC controller 6 by Bluetooth. When the signal light 47 is fully lit, the light sensor 51 detects that the light intensity reaches the set value, and the PLC controller 6 starts the electric telescopic rod 35 and the reduction motor 41 to start the length and roundness measurement. During the roundness detection process, the steel wire braided hose rotates with the rotation of the clamping component, and the data measured by the pressure sensor 54 on its outer wall is used as a value directly related to the roundness, and the data fluctuation range is within the allowable range. It is qualified.

[0049] The transmission mechanism 2, the visual inspection mechanism 3, the pipe diameter measuring mechanism 4 and the alarm light 7 are all controlled by the PLC controller 6. The PLC controller 6 is installed on the outer wall of the machine body 1. The operation of the entire equipment can be controlled by the PLC controller 6, and the degree of intelligence is high.

[0050] Working principle: Before measuring, the length indicator rod 35 needs to be adjusted to the standard length position of the batch of steel wire braided rubber hoses and locked by bolts. Then, the machine body 1 is started by the PLC controller 6. First, the power device is driven to rotate with the conveying roller 21. At this time, multiple groups of steel wire braided rubber hoses can be put into the conveying slot 22 on the conveying roller 21 at the same time or successively. The steel wire braided rubber hoses are sent to the pipe diameter measuring mechanism 4 along with the driving roller 21. The steel wire braided rubber hoses squeeze the pressure rod 45. The front end of the pressure rod 45 is conical. The mouth moves forward until it is stuck in the position where the cone is the same thickness as the inner diameter of the tube, and then continues to squeeze the touch-pressure rod 45 backward. During this process, the transmission rod 43 rotates around the connection with the support frame 46 under the action of the connecting rod. At this time, the clamping and measuring assembly moves toward the center and gradually clamps the steel wire braided hose until the touch-pressure switch 410 is triggered. At this time, the clamping plate 412 completely clamps the steel wire braided hose, and the corresponding signal light 47 lights up. At the same time, the latest data measured by the laser distance sensor 414 is used as data directly related to the outer diameter;

[0051] When all the signal lights 47 are on, the light brightness in the machine body 1 will increase. When the light sensor 51 detects that the light reaches the specified value, it will send a signal to the PLC controller 6. The PLC controller 6 first controls the electric telescopic rod 31 to push the steel plate 33 down. During the descent, the visual sensors 34 at both ends of the steel plate 33 take pictures of both ends of the steel wire braided hose. One end is a schematic diagram of the position of the pipe mouth and the length indicator rod 35, and the other end is a schematic diagram of the position of the pipe mouth and the inner diameter indicator scale line on the touch pressure rod 45. The visual sensor 34 converts the image information into digital information and transmits it to the PLC controller 6 to determine whether the inner diameter and length are standard sizes. After the steel plate 33 descends to the pressure sensor 54 to detect the data, the PLC controller 6 sends a message to the electric telescopic rod 31 to stop the action, and starts the reduction motor 41. The base plate 42 is driven The clamping assembly and the wire braided hose rotate steadily and slowly. During the rotation, the outer wall of the wire braided hose always presses against the pressure sensor 54. The data measured during the circumferential rotation is used as direct data related to the roundness measurement. If all pressure values ​​are within the allowable range, the roundness is qualified. So far, the machine body 1 has successively realized the data measurement and detection of the outer diameter, length, inner diameter and roundness of the wire braided hose. The results are displayed through the alarm light 7. Red is unqualified and an alarm is issued, and green is qualified, which is convenient for staff to find defective products in time. At the same time, the test results are sent to the host computer, which is convenient for technical personnel to retain and subsequently analyze the product data. After the transmission is completed, the PLC controller 6 drives the electric telescopic rod 31 to lift and reset the steel plate 33, and drives the conveying roller 21 to rotate in the opposite direction until the wire braided hose completely leaves the machine body 1, ending the measurement of this batch.

[0052] The above embodiment provides a device for batch measuring the size of a wire braided hose, and the measuring method thereof is as follows:

[0053] S1. Preparation: Start the machine body 1 through the PLC controller 6, move the length indicator rod 35 to the measuring length and lock it;

[0054] S2. Loading: The plurality of braided steel wire hoses are delivered to the first conveyor roller 21 at the feeding port on the conveying slot 22;

[0055] S3. Clamping and positioning: The wire braided hose moves with the drive roller into the body 1 until the wire braided hose moves to the pipe diameter measuring mechanism 4, is clamped by the clamping measuring assembly, and the outer diameter measurement is completed while clamping, and the touch switch 410 is triggered, and the signal light 47 is lit;

[0056] S4. Length and inner diameter detection: After all the signal lights 47 are on, the light sensor 51 sends a signal to the PLC controller 6. The PLC controller 6 first controls the electric telescopic rod 31 to push the steel plate 33 down. During the descent of the steel plate 33, the two visual sensors 34 take pictures of both ends of the steel wire braided hose, collect the inner diameter size information at one end connected to the touch rod 45, and collect the length information at the other end, and convert the information in the photo into a digital signal and transmit it to the PLC controller 6;

[0057] S5. Roundness measurement: After the steel plate 33 descends to the point where the pressure sensor 54 detects data, the PLC controller 6 sends a message to the electric telescopic rod 31 to stop the action. At this time, the roundness detection plate 52 is in contact with the steel wire braided hose, and the reduction motor 41 starts to rotate the steel wire braided hose. During the rotation, the outer wall of the hose is in contact with the pressure sensor 54 in the semicircular groove. The generated pressure value is used as direct data for measuring the roundness. If the value fluctuation is within the allowable range, the roundness measurement result is qualified, otherwise it is a defective product.

[0058] S6 measurement results: After step S5, the PLC controller 6 controls all drive devices of the machine body 1 to stop operating. If the test result is qualified, the alarm light 7 turns green, and if it is unqualified, the red light turns red and the alarm sounds. At the same time, the PLC controller 6 sends the data results to the host computer;

[0059] S7. Unloading: The PLC controller 6 controls the electric telescopic rod 31 to pull up the steel plate 33, and drives the conveying roller 21 to rotate in the opposite direction, so that the steel wire braided hose is moved out in the opposite direction, and the measurement is ended.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A size batch measuring device for steel wire braided hose, characterized in that: It comprises a machine body (1), and a transmission mechanism (2), a visual detection mechanism (3), a pipe diameter measurement mechanism (4), a roundness measurement mechanism (5), and a PLC controller (6) arranged on the machine body (1); The transmission mechanism (2) is used to simultaneously convey multiple groups of steel wire braided rubber hoses to be tested, and comprises a plurality of conveying rollers (21) arranged horizontally and parallelly at equal intervals, wherein the conveying rollers (21) are rotatably mounted on the machine body (1), and the outer wall is provided with a plurality of conveying slots (22) distributed at equal intervals along the axial direction; The pipe diameter measuring mechanism (4) is used for clamping and positioning the steel wire braided rubber hose and measuring the inner and outer diameters. It is arranged at one end of the machine body (1). The other end of the machine body (1) is a feeding port. The pipe diameter measuring mechanism (4) comprises a rotating part, a clamping part and a signal part. The rotating part comprises a reduction motor (41) and a base plate (42) corresponding to the transmission slot (22). The reduction motor (41) and the corresponding base plate (42) are arranged on the inner and outer sides of the machine body (1) and are connected by a coupling. The clamping part comprises a base (44) installed at the center of the base plate (42). The base (44) is connected by a spring. A touch pressure rod (45) is sleeved, and a plurality of evenly distributed connecting rods are hingedly connected to the outer side of the touch pressure rod (45), and the other end of each connecting rod is rotatably connected to a transmission rod (43). The end of the transmission rod (43) is hingedly connected to a clamping measurement assembly, and the middle is rotatably connected to a support frame (46), and the support frame (46) is fixed on the base plate (42); the signal part includes a signal lamp (47) installed on the machine body (1), and the signal lamps (47) are located above the base plate (42) and the number of the signal lamps (47) corresponds to each other. The output end of the signal lamp (47) is electrically connected to the input end of the PLC controller (6); One end of the touch-pressure rod (45) is conical, and an inner diameter indicating scale line is arranged on the outer wall, and the other end is hollow inside and slidably sleeved on the base (44). A guide rod (48) is arranged circumferentially on the outer wall of the base (44), and a guide groove matching the guide rod (48) is opened at the hollow end of the touch-pressure rod (45); The clamping and measuring assembly comprises a clamping seat (49), a touch-pressure switch (410), an elastic plate (411), a clamping plate (412), a steel ball (413) and a laser distance sensor (414) which are sequentially arranged from the outside to the inside, wherein one side of the clamping seat (49) is hinged to the end of the transmission rod (43), and the end is provided with a laser distance sensor (414), and the center of the other side is provided with a touch-pressure switch (410), the elastic plate (411) is concave, and the two ends are movably connected to the clamping seat (49), and the middle part is fixedly connected to the middle part of one side of the clamping plate (412), and the steel ball (413) is installed in a matrix on the other side of the clamping plate (412); When the pipe diameter measuring mechanism (4) and the clamping measuring assembly are measuring, the steel wire braided rubber hose is first sent to the touch pressure rod (45) during the transfer process. In the process of pushing the touch pressure rod (45), the connecting rod drives one end of the transmission rod (43) to rotate, and the clamping measuring assembly is rotated and pushed toward the pipe wall, gradually clamping the steel wire braided rubber hose until the signal light (47) lights up and the hose completely reaches the detection position. The outer diameter value of the steel wire braided rubber hose can be obtained by subtracting the data measured by the current laser distance sensor (414) from the diameter of the circle where the original clamping plate (412) is located. The visual detection mechanism (3) is used to detect the position of the wire braided rubber hose after positioning, and is arranged on the machine body (1) and located on the upper side of the transmission mechanism (2); The roundness measuring mechanism (5) is used to measure the roundness of the tube wall of the wire braided rubber hose and is installed on the visual inspection mechanism (3); The transmission mechanism (2), the visual detection mechanism (3) and the pipe diameter measurement mechanism (4) are all controlled by a PLC controller (6), and the PLC controller (6) is mounted on the outer wall of the machine body (1).

2. The device for measuring the size of a steel wire braided hose in batches according to claim 1, characterized in that: One end of the conveying roller (21) rotates in coordination with a gear and a chain, and the output end is connected to a driving device, which is mounted on the outer wall of the machine body (1), and the input end of the driving device is electrically connected to the output end of the PLC controller (6).

3. The device for measuring the size of a steel wire braided hose in batches according to claim 2, characterized in that: The visual detection mechanism (3) comprises an electric telescopic rod (31), a suspension rod (32), a steel plate (33), a visual sensor (34) and a length indicating rod (35) which are arranged in sequence from top to bottom. The suspension rod (32) is arranged horizontally and fixedly mounted on the machine body (1). The electric telescopic rod (31) is mounted on the middle part of the upper side of the suspension rod (32). The telescopic end of the electric telescopic rod (31) passes through the suspension rod (32) and is vertically connected to the steel plate (33). There are two visual sensors (34) which are respectively mounted on the two end surfaces of the steel plate (33) through brackets. The input end of the electric telescopic rod (31) is electrically connected to the output end of the PLC, and the output end of the visual sensor (34) is electrically connected to the input end of the PLC controller (6).

4. A device for measuring the size of a steel wire braided hose in batches according to claim 3, characterized in that: The length indicating rod (35) is arranged below the conveying roller (21) and is slidably connected to the machine body (1). The machine body (1) is provided with a horizontal slide groove that matches the length indicating rod (35). The machine body (1) is provided with indicating scales on both sides of the slide groove, and the values ​​of the indicating scales gradually decrease from the feeding port to the pipe diameter measuring mechanism (4).

5. A device for measuring the size of a steel wire braided hose in batches according to claim 4, characterized in that: A roundness measuring mechanism (5) is installed on one side of the steel plate (33) close to the clamping measuring assembly. The roundness measuring mechanism (5) comprises a light sensor (51) and a roundness detection plate (52). The roundness detection plate (52) is vertically installed on the lower surface of the steel plate (33), and the lower side is provided with measuring slots (53) distributed at equal intervals along the length direction. The measuring slots (53) correspond one-to-one to the conveying slots (22) on the conveying roller (21). Pressure sensors (54) are installed on the inner walls of both ends of the opening of the measuring slots (53). The output end of the pressure sensor (54) is connected to the input end of the PLC controller (6) via Bluetooth.

6. A device for measuring the size of a steel wire braided hose in batches according to claim 5, characterized in that: An alarm light (7) for displaying whether the test result is qualified or not is installed on the machine body (1), and an input end of the alarm light (7) is electrically connected to an output end of the PLC controller (6).

7. A measuring method for the size batch measuring device for steel wire braided hose according to claim 6, characterized in that: The following steps are involved: S1. Preparation: Start the machine body (1) through the PLC controller (6), move the length indicator rod to the measuring length and lock it; S2. Loading: Send multiple braided steel wire hoses to the conveying slot (22) of the first conveying roller (21) at the feeding port; S3. Clamping and positioning: The wire braided hose moves into the machine body (1) along with the driving roller until the wire braided hose moves to the pipe diameter measuring mechanism (4), is clamped by the clamping measuring assembly, and the outer diameter is measured while clamping, and the touch pressure switch (410) is triggered, and the signal light (47) is turned on; S4. Length and inner diameter detection: After all the signal lights (47) are lit, the light sensor (51) sends a signal to the PLC controller (6). The PLC controller (6) first controls the electric telescopic rod (31) to push the steel plate (33) down. During the process of the steel plate (33) descending, the two visual sensors (34) respectively take pictures of both ends of the steel wire braided hose, collect the inner diameter size information at the end connected to the touch pressure rod (45), and collect the length information at the other end, and convert the information in the picture into a digital signal and transmit it to the PLC controller (6); S5. Roundness measurement: After the steel plate (33) is lowered to the point where the pressure sensor (54) detects data, the PLC controller (6) sends a message to the electric telescopic rod (31) to stop the action. At this time, the roundness detection plate (52) is in contact with the steel wire braided hose, and the reduction motor (41) starts to rotate the steel wire braided hose. During the rotation process, the pressure value generated by the contact between the outer wall of the hose and the pressure sensor (54) in the semicircular groove is used as direct data for measuring the roundness. If the fluctuation of the value is within the allowable range, the roundness measurement result is qualified, otherwise it is a defective product. S6. Measurement results: After step S5, the PLC controller (6) controls all driving devices of the machine body (1) to stop operating. If the test result is qualified, the alarm light (7) lights up green. If it is unqualified, the red light lights up and an alarm sounds. At the same time, the PLC controller (6) sends the data result to the host computer; S7. Unloading: The PLC controller (6) controls the electric telescopic rod (31) to pull up the steel plate (33) and drives the conveying roller (21) to rotate in the opposite direction, so that the steel wire braided hose is moved out in the opposite direction, and the measurement ends.

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