Brake pipe joint transfer mechanism, detection mechanism, and detection device

Abstract

The present application belongs to the field of intelligent manufacturing, and discloses a brake pipe joint conveying mechanism, which comprises a conveying channel and a cutting and transferring assembly. The conveying channel has a rectangular cross section matched with a sleeve knot plate part. A connecting column part abuts against the mouth part of the conveying channel. The cutting and transferring assembly comprises a cutting and transferring cylinder, a cutting and transferring jig, an ejection cylinder and an ejection jig. The cutting and transferring jig is arranged on the output end of the cutting and transferring cylinder. The cutting and transferring jig has a cutting and transferring through slot corresponding to the conveying channel and being linear and continuous. The cutting and transferring through slot is used for receiving a predetermined brake pipe joint conveyed by the conveying channel. The ejection jig is arranged on the output end of the ejection cylinder. The ejection jig has an ejection part. A predetermined station corresponds to the ejection part. The predetermined station and the ejection part are respectively located on opposite sides of the cutting and transferring jig. The present application also discloses a brake pipe joint detection mechanism matched with the brake pipe joint conveying mechanism. The present application also discloses a brake pipe joint detection device comprising the brake pipe joint conveying mechanism and the detection mechanism.

Description

Technical Field

[0001] This invention belongs to the field of intelligent manufacturing, specifically relating to a brake pipe connector conveying mechanism, a detection mechanism, and a detection device. Background Technology

[0002] When a car brakes, braking is generally achieved by brake fluid within the brake lines acting on the braking system. Brake line connectors are indispensable parts of the car's braking system, such as... Figure 1 As shown, a brake hose connector is a relatively complex component, consisting of a sleeve plate, a transition rod, and a connecting post. The sleeve plate has a sleeve through hole, and the surface of the sleeve plate and the sleeve through hole form a precise fit with the relevant components. The free end of the connecting post has an axial connecting blind hole, through which the connecting post precisely fits with the relevant components. Therefore, in the quality inspection of brake hose connectors, in addition to the inspection of surface shape defects, the flatness of the sleeve plate and the axial perpendicularity of the sleeve through hole relative to the sleeve plate are key inspection items with high precision standards. If these inspection items fail to meet the qualified standard values, it is very easy to cause brake fluid leakage, resulting in reduced or failed braking performance, and in severe cases, even causing major traffic accidents.

[0003] Currently, the full inspection of brake hose fittings generally adopts a percentage sampling method, which is achieved through visual inspection by inspectors and programming of a coordinate measuring machine. The inspection efficiency is low. Moreover, since the sampling method is based on the estimation principle of probability, it is almost unavoidable to miss some defective brake hose fittings in the entire batch.

[0004] To better address the aforementioned issues, the industry has attempted to use assembly line methods for testing brake hose connectors. However, for brake hose connectors with complex configurations, the components themselves lack a stable reference surface to support their placement. If an assembly line is used for testing, it is difficult for the brake hose connector to achieve stable positional transmission at each station on the assembly line. Consequently, the assembly line also struggles to establish a testing reference surface for accurate testing of the brake hose connector and to maintain the brake hose connector's positional stability during testing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a brake pipe joint conveying mechanism, a testing mechanism, and testing equipment. These mechanisms enable stable positional transmission of the brake pipe joint at each workstation on the production line, establish a reference surface for accurate testing of the brake pipe joint, and maintain the brake pipe joint's fixed position during testing. This allows for accurate, rapid, and high-precision testing of all brake pipe joint testing items in a production line manner.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A brake hose connector conveying mechanism is used to convey a predetermined brake hose connector to a predetermined workstation. The predetermined brake hose connector has a connecting column, a transition rod, and a sleeve plate in a sequential, linear sequence. The sleeve plate has a sleeve through hole. The connecting column and the transition rod are coaxial and their diameters are larger than the diameter of the transition rod and the thickness of the sleeve plate. The mechanism is characterized by comprising: a conveying channel for conveying the predetermined brake hose connector along a first horizontal direction, the conveying channel having a rectangular cross-section that mates with the sleeve plate; the transition rod and the sleeve plate being inserted into the conveying channel and the connecting column abutting against the opening of the conveying channel; and a switching assembly including a switching cylinder, a switching fixture, an ejection cylinder, and an ejection fixture. The device includes a switching cylinder for linear drive along a second horizontal direction, a switching fixture mounted on the output end of the switching cylinder, a switching through groove corresponding to and continuously connected to the conveying channel, the switching through groove having the same cross-section as the conveying channel, the switching through groove for receiving a predetermined brake pipe connector conveyed by the conveying channel, an ejection cylinder for linear drive along a third horizontal direction, the third horizontal direction being parallel to the first horizontal direction, an ejection fixture mounted on the output end of the ejection cylinder, an ejection part extending along the third horizontal direction, a predetermined station corresponding to the ejection part in the third horizontal direction, and the predetermined station and the ejection part being located on opposite sides of the switching fixture.

[0008] Preferably, the switching assembly further includes a stop body, which corresponds to the switching fixture in the second horizontal direction, and the stop body and the switching through groove are located on opposite sides of the ejector portion.

[0009] A brake hose connector testing mechanism for testing a predetermined brake hose connector, characterized in that it comprises: a reference assembly including a reference cylinder, a reference fixture, and a positioning fixture; the reference cylinder is used for linear driving along a fourth horizontal direction; the reference fixture is disposed on the output end of the reference cylinder; the reference fixture has a workpiece reference surface perpendicular to the fourth horizontal direction; the positioning fixture has a vertical positioning through groove; the extension direction of the positioning through groove is perpendicular to the fourth horizontal direction and the workpiece reference surface is located near the lower opening of the positioning through groove; the positioning through groove has a rectangular cross-section that mates with a sleeve plate portion; a transition rod portion and a sleeve plate portion are inserted into the positioning through groove, and a connecting column portion abuts against the opening on the other side of the positioning through groove; and a testing assembly including a dotting drive cylinder and a plurality of dotting pin rods extending along the fourth horizontal direction; the dotting drive cylinder is used for linear driving along the fourth horizontal direction; the output of the dotting pin rods and the dotting drive cylinder are coupled; and the free end of the dotting pin rods is perpendicularly oriented towards the workpiece reference surface.

[0010] Preferably, the workpiece reference surface has a sleeve hole reference ball protrusion and four planar reference ball protrusions, and the four planar reference ball protrusions are evenly distributed around the sleeve hole reference ball protrusion, and the sleeve hole reference ball protrusion is coaxially corresponding to the sleeve through hole, and the planar reference ball protrusions are corresponding to the solid plate surface of the sleeve plate.

[0011] Preferably, the detection component includes a four-jaw chuck and a bevel gear drive motor. The positioning axis of the four-jaw chuck extends along the fourth horizontal direction, and the four-jaw chuck has four movable clamping parts and a drive bevel gear. The output end of the bevel gear drive motor is rotatably coupled to the drive bevel gear. The dotting needle bar is correspondingly arranged on the movable clamping part, so that when the bevel gear drive motor rotates, the dotting needle bar moves closer to or away from the positioning axis of the four-jaw chuck.

[0012] Furthermore, the detection component also includes a chuck drive motor. The four-jaw chuck is set on the output end of the chuck drive motor. When the chuck drive motor rotates, the four-jaw chuck rotates around its own positioning axis.

[0013] A brake hose connector testing device is used to test the aforementioned predetermined brake hose connector. It is characterized by comprising: a brake hose connector conveying mechanism as described above, a brake hose connector testing mechanism as described in any of the above, and a positioning through-slot serving as a predetermined workstation; a transfer component and an output mechanism; the output mechanism having a synchronous conveyor belt; the transfer component being used to transfer the predetermined brake hose connector from the predetermined workstation to the synchronous conveyor belt; and the synchronous conveyor belt being used to convey and output the predetermined brake hose connector.

[0014] Preferably, the transfer assembly includes a tilting cylinder and a first finger cylinder disposed at the output end of the tilting cylinder. The first finger cylinder is used to clamp the circumferential surface of the connecting column located at a predetermined work position. The tilting cylinder is used to perform a half-circle tilting movement of the first finger cylinder in a vertical plane. The free end of the connecting column has a connecting blind hole extending axially. Multiple conveying bases are detachably disposed on the synchronous conveyor belt, and the conveying bases are tractably disposed. The conveying bases have vertically upward extending retaining protrusions, which are used to engage with the connecting blind holes, thereby allowing the predetermined brake pipe connector to be inserted into the conveying base.

[0015] Preferably, the present invention further includes an appearance acquisition unit, comprising at least one plate surface acquisition component and a cylindrical surface acquisition component. The plate surface acquisition component includes a first fixed bracket and a light-blocking housing and a plate surface appearance acquisition camera, both mounted on the first fixed bracket. The light-blocking housing is located directly above the synchronous conveyor belt and is open towards the surface of the synchronous conveyor belt. The light-blocking housing is open at both ends in the conveying direction of the synchronous conveyor belt. The light-blocking housing has a viewing window, and when a predetermined brake pipe connector enters the light-blocking housing, the viewing window corresponds to the sleeve plate portion. The plate surface appearance acquisition camera is located on the side of the synchronous conveyor belt, and the camera's optical axis corresponds to the viewing window. The cylindrical surface acquisition component includes a cylindrical surface appearance acquisition camera, a second fixed bracket, and a rotary cylinder mounted on the second fixed bracket. The output end of the rotary cylinder has a pair of plate portion clamping fingers extending towards the synchronous conveyor belt, and the plate portion clamping fingers are used to clamp and cooperate with the sleeve plate portion. Thus, when the rotary cylinder rotates, the pair of plate portion clamping fingers drive the predetermined brake pipe connector to rotate. The cylindrical surface appearance acquisition camera is located on the side of the synchronous conveyor belt, and the camera's optical axis corresponds to the vicinity of the surface of the synchronous conveyor belt.

[0016] Preferably, the present invention further includes a discharge unit, comprising a linear motor, a lifting cylinder, a second finger cylinder, a defective product receiving box, and a good product output ramp. The linear motor passes directly above the defective product receiving box and the good product output ramp. The linear motor is coupled to the output of the lifting cylinder. The second finger cylinder is located at the output end of the lifting cylinder and is directly above the synchronous conveyor belt. The second finger cylinder is used to clamp the surface of the sleeve plate. The lifting cylinder is used to raise and lower the second finger cylinder. The good product output ramp is inclined downward. When the linear motor drives the lifting cylinder to move, the second finger cylinder selectively releases a predetermined brake pipe joint to either the defective product receiving box or the good product output ramp based on a predetermined command.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Because the brake pipe connector conveying mechanism of the present invention includes a conveying channel and a switching assembly, the conveying channel has a rectangular cross-section that mates with the sleeve plate portion, the connecting column portion abuts against the opening of the conveying channel, the switching assembly includes a switching cylinder, a switching fixture, an ejection cylinder, and an ejection fixture, the switching fixture is disposed on the output end of the switching cylinder, the switching fixture has a switching through groove corresponding to and continuously aligned with the conveying channel, the switching through groove is used to receive the predetermined brake pipe connector conveyed by the conveying channel, the ejection fixture is disposed on the output end of the ejection cylinder, the ejection fixture has an ejection part, and a predetermined station is located corresponding to the ejection part, and the predetermined station and the ejection part are respectively located on the switching fixture. On both sides, when the predetermined brake pipe connector is transported to the cutting and rotating channel via the conveying channel, it is not precisely positioned. It is only temporarily positioned by abutting against the cutting and rotating channel. By setting the size of the ejector and the stroke of the ejector cylinder, the predetermined pipe connector can be accurately ejected to the predetermined station. Therefore, the present invention achieves the precise transmission of the predetermined brake pipe connector to the predetermined station during the conveying process of the production line by initially positioning the predetermined brake pipe connector with the cutting and rotating fixture and accurately ejecting the predetermined brake pipe connector to the predetermined station with the ejector. In this process, the predetermined brake pipe connector is always kept in a stable position.

[0019] 2. Because the switching assembly of the present invention also includes a stop body, which corresponds to the switching fixture in the second horizontal direction, and the stop body and the switching through groove are located on opposite sides of the ejection portion, the stop body of the present invention can accurately make the predetermined brake pipe joint correspond to the predetermined station in the third horizontal direction.

[0020] 3. Because the brake pipe joint detection mechanism of the present invention includes a reference component and a detection component, the reference component includes a reference cylinder, a reference fixture, and a positioning fixture. The reference fixture is disposed on the output end of the reference cylinder and has a workpiece reference surface. The positioning fixture has a vertical positioning through groove, and the workpiece reference surface is located near the lower opening of the positioning through groove. The positioning through groove has a rectangular cross-section that mates with the sleeve plate portion, and the connecting column portion abuts against the side opening of the positioning through groove. The detection component has a dotting drive cylinder and multiple dotting needle rods. The output of the dotting needle rods and the dotting drive cylinder are coupled, and the free end of the dotting needle rods is perpendicular to the workpiece reference surface. Therefore, the present invention sets a predetermined brake pipe joint through the positioning fixture and through... The reference cylinder pushes the workpiece reference surface on the reference fixture to the sleeve plate. Under the constraint of the positioning through groove, when the workpiece reference surface is in contact with the sleeve plate, the predetermined brake pipe connector is blocked in the positioning through groove. At this time, the workpiece reference surface becomes the detection reference surface of the sleeve plate. Multiple dotting pins are driven by the dotting drive cylinder to push against the solid plate surface of the sleeve plate, thereby acquiring point data on the flatness of the sleeve plate and obtaining the detection result based on the data. That is, the flatness is accurately detected by setting pressure sensors on multiple dotting pins. If the difference in pressure feedback on multiple dotting pins is greater than a predetermined difference, the flatness of the sleeve plate is judged to be unqualified; otherwise, it is judged to be qualified.

[0021] 4. Because the workpiece reference surface of the present invention has a sleeve reference ball protrusion and four planar reference ball protrusions, and the four planar reference ball protrusions are evenly distributed around the sleeve reference ball protrusion, and the sleeve reference ball protrusion is coaxially corresponding to the sleeve through hole, and the planar reference ball protrusions are corresponding to the solid plate surface of the sleeve plate, the sleeve reference ball protrusion and the sleeve through hole are connected to provide an axial reference for the sleeve through hole through the insertion fit, so that the perpendicularity of the sleeve through hole relative to the detection reference surface can be obtained by combining the pressure difference feedback of the dotting needle rod with the axial reference. Therefore, the present invention forms point support for the plate surface of the sleeve plate through the four planar reference ball protrusions, making the detection reference surface more accurate, and can simultaneously perform precise detection of the flatness of the sleeve plate and the perpendicularity of the sleeve through hole relative to the sleeve plate by simply using the dotting method based on the detection reference surface.

[0022] 5. Because the detection component of the present invention includes a four-jaw chuck and a bevel gear drive motor, the four-jaw chuck has four movable clamping parts and a drive bevel gear. The output end of the bevel gear drive motor is rotatably coupled to the drive bevel gear. The dotting needle rod is correspondingly arranged on the movable clamping parts. Thus, when the bevel gear drive motor rotates, the dotting needle rod moves closer to or away from the positioning axis of the four-jaw chuck. Based on the basic characteristics of the four-jaw chuck that is available on the market and can be easily purchased, the drive bevel gear in the four-jaw chuck has the characteristic of driving the four movable clamping parts to move closer to or away from the positioning axis of the four-jaw chuck. Therefore, the present invention can realize that multiple dotting needle rods can uniformly dot the solid plate surface of the sleeve plate part through the four-jaw chuck, thereby realizing the collection of point data at any number of positions on the two diagonals of the solid plate surface of the sleeve plate part.

[0023] 6. Because the detection component of the present invention also includes a chuck drive motor, and the four-jaw chuck is set on the output end of the chuck drive motor, when the chuck drive motor rotates, the four-jaw chuck rotates around its own positioning axis. Therefore, by rotating the four-jaw chuck, the present invention can realize the acquisition of point data at any number of positions on the entire solid plate surface of the sleeve plate.

[0024] 7. Because the brake pipe joint testing equipment of the present invention includes a brake pipe joint conveying mechanism, a brake pipe joint testing mechanism, a transfer component, and an output mechanism, the output mechanism has a synchronous conveyor belt, the transfer component is used to transfer the predetermined brake pipe joint from the predetermined workstation to the synchronous conveyor belt, and the synchronous conveyor belt is used to transport and output the predetermined brake pipe joint, the present invention can realize the entire process of input, testing, and output of the predetermined brake pipe joint in a streamlined operation.

[0025] 8. Because the transfer assembly of the present invention includes a flipping cylinder and a first finger cylinder, the first finger cylinder is used to clamp the connecting column, the flipping cylinder is used to perform a half-circle flipping movement of the first finger cylinder, the free end of the connecting column has a connecting blind hole extending axially, a plurality of conveying bases are provided on the synchronous conveyor belt, and the conveying bases are tractably provided, the conveying bases have a retaining protrusion, the retaining protrusion is used to insert and cooperate with the connecting blind hole, so that the predetermined brake pipe connector is inserted on the conveying base, therefore, the present invention, through the flipping cylinder and the first finger cylinder, causes the predetermined brake pipe connector located at the predetermined work position to rotate 180° in the vertical plane, so that the retaining protrusion can be inserted and cooperate with the connecting blind hole, thereby making the predetermined brake pipe connector stably fixed on the conveying base, so that the synchronous conveyor belt can stably convey the predetermined brake pipe connector through the conveying base, and expose the connecting column for subsequent appearance quality inspection.

[0026] 9. Because the present invention also includes an appearance acquisition unit, comprising a plate surface acquisition assembly and a cylindrical surface acquisition assembly, the plate surface acquisition assembly includes a first fixed bracket, a light-blocking housing, and a plate surface appearance acquisition camera, the light-blocking housing is located directly above the synchronous conveyor belt, the light-blocking housing has a viewing window, and when a predetermined brake pipe connector enters the light-blocking housing, the viewing window corresponds to the fitted plate portion, the plate surface appearance acquisition camera is located on the side of the synchronous conveyor belt, and the camera optical axis corresponds to the viewing window, the cylindrical surface acquisition assembly includes a cylindrical surface appearance acquisition camera, a second fixed bracket, and a rotary cylinder, the output end of the rotary cylinder has a pair of plate portion clamping fingers extending toward the synchronous conveyor belt, and the plate portion clamping fingers are used for The device is clamped and engaged with the sleeve plate, so that when the rotary cylinder rotates, a pair of plate clamping fingers drive the predetermined brake pipe connector to rotate. The cylindrical appearance acquisition camera is located on the side of the synchronous conveyor belt, and the camera optical axis corresponds to the surface of the synchronous conveyor belt. Therefore, the present invention can acquire data on the images of the opposite two sides of the sleeve plate through multiple plate appearance acquisition cameras, so that the operator can obtain the surface defects based on the data. The rotary cylinder drives the predetermined brake pipe connector to rotate, and cooperates with the cylindrical appearance acquisition camera to acquire data on the full circumference surface of the connecting column, so that the operator can obtain the surface defects based on the data.

[0027] 10. Because the present invention also includes a discharge unit, including a linear motor, a lifting cylinder, a second finger cylinder, a defective product receiving box, and a good product output ramp, the linear motor passes directly above the defective product receiving box and the good product output ramp, the second finger cylinder is located directly above the synchronous conveyor belt, the second finger cylinder is used to clamp the plate surface of the sleeve plate, the lifting cylinder is used to raise and lower the second finger cylinder, and the good product output ramp is inclined downward. When the linear motor drives the lifting cylinder to move, the second finger cylinder selectively releases a predetermined brake pipe joint to the defective product receiving box or the good product output ramp based on a predetermined command. Therefore, the present invention can automatically output the predetermined brake pipe joints of good and defective products in a relatively isolated manner through the discharge unit. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a brake hose connector.

[0029] Figure 2 This is a plan view of a brake pipe joint testing device according to an embodiment of the present invention.

[0030] Figure 3 This is a perspective view of a brake pipe joint testing device according to an embodiment of the present invention.

[0031] Figure 4 This is a perspective view of the brake pipe connector conveying mechanism, brake pipe connector detection mechanism, transfer component, and output mechanism according to an embodiment of the present invention.

[0032] Figure 5 This is a perspective view of the brake pipe connector transmission mechanism according to an embodiment of the present invention.

[0033] Figure 6 This is a schematic diagram illustrating the fit between a reference component and a predetermined brake pipe connector in an embodiment of the present invention.

[0034] Figure 7 This is an assembly diagram of the reference cylinder and reference fixture according to an embodiment of the present invention.

[0035] Figure 8 This is a schematic diagram of the detection component according to an embodiment of the present invention.

[0036] Figure 9 for Figure 8 Exploded view.

[0037] Figure 10 This is a schematic diagram of a four-jaw chuck according to an embodiment of the present invention.

[0038] Figure 11 This is a schematic diagram of the output mechanism and appearance acquisition unit according to an embodiment of the present invention.

[0039] Figure 12 This is a schematic diagram of a conveying base according to an embodiment of the present invention.

[0040] Figure 13 This is a schematic diagram of the positive positioning block according to an embodiment of the present invention.

[0041] Figure 14 This is a schematic diagram illustrating the cooperation between the second fixed bracket, the rotary cylinder, and the synchronous conveyor belt in an embodiment of the present invention.

[0042] Figure 15 This is a schematic diagram illustrating the cooperation between the output mechanism and the discharge unit in an embodiment of the present invention.

[0043] In the diagram: 1000, Brake pipe connector testing equipment; 1000A, Equipment base frame; 100, Brake pipe connector conveying mechanism; W, Pre-selected brake pipe connector; 110, Input component; 111, Rotary screen box; 112, Vertical vibrating feeder; 1121, Conveying trough; D1, First horizontal direction; 120, Switching component; 121, Switching cylinder; D2, Second horizontal direction; 122, Switching fixture; 1221, Switching through groove; 123, Ejection cylinder; D3. Third horizontal direction, 124. Ejection fixture, 1241. Ejection part, 125. Stop body, 200. Brake pipe joint inspection mechanism, 210. Reference component, 211. Positioning fixture, 2111. Predetermined station, 212. Reference cylinder, D4. Fourth horizontal direction, 213. Reference fixture, 2131. Inspection semi-groove, 21311. Workpiece reference surface, 21311a. Sleeve reference spherical protrusion, 21311b. Planar reference spherical protrusion, 220. Detection components, 221, four-jaw chuck, 2211, chuck base, 2212, chuck housing, 2212a, guide groove, 2213, rotating base plate, 2213a, mating gear part, 2213b, surface-driven spiral, 2214, drive bevel gear, 2215, movable clamping part, 2216, dotting pin bar, 222, chuck drive motor, 223, bevel gear drive motor, 224, dotting drive cylinder, 300, transfer assembly, 310. 320. Tilting cylinder, 330. First finger cylinder, 400. Vertical drive cylinder, 410. Output mechanism, 420. Synchronous conveyor belt, 430. Synchronous drive motor, 431. Conveyor base, 440. Fixing protrusion, 440. Alignment block, 440a. Alignment through slot, 500. Appearance acquisition unit, 510. Panel acquisition assembly, 511. First fixed bracket, 512. Light-blocking housing, 513. Panel appearance acquisition camera, 520. Column acquisition assembly, 521. Second fixed bracket, 522. Rotary cylinder, 5221. Panel finger clamp, 524. Ring light, 600. Discharge unit, 610. Linear motor, 620. Lifting cylinder, 630. Second finger cylinder, 640. Defective product receiving box, 650. Good product output ramp, 660. Good product receiving box. Detailed Implementation

[0044] To make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments, in conjunction with the accompanying drawings, specifically describe the brake pipe joint transmission mechanism, detection mechanism and detection equipment of the present invention. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0045] like Figure 2 and Figure 3As shown, the brake pipe joint testing device 1000 in this embodiment includes a brake pipe joint conveying mechanism 100, a brake pipe joint testing mechanism 200, a transfer component 300, an output mechanism 400, an appearance acquisition unit 500, and a discharge unit 600. Specifically, the brake pipe joint testing device 1000 is horizontally arranged and also includes a device base frame 1000A. The brake pipe joint conveying mechanism 100 extends from the outside of the device base frame 1000A to the inside of the device base frame 1000A. The brake pipe joint testing mechanism 200, the transfer component 300, the output mechanism 400, the appearance acquisition unit 500, and the discharge unit 600 are all located inside the device base frame 1000A. The brake pipe joint testing mechanism 200 is output coupled to the brake pipe joint conveying mechanism 100, and the multiple driving components of the brake pipe joint testing device 1000 are operated by commands issued by its own program.

[0046] like Figure 4 As shown, the brake pipe connector conveying mechanism 100 is used to convey a predetermined brake pipe connector W to a predetermined work station. The predetermined brake pipe connector W has a connecting column, a transition rod, and a sleeve plate in sequence in a straight line. The sleeve plate has a sleeve through hole. The connecting column and the transition rod are coaxial and their diameters are larger than the diameter of the transition rod and the thickness of the sleeve plate. The free end of the connecting column has a connecting blind hole extending axially (not shown in the figure).

[0047] like Figure 5 As shown, the brake pipe connector transmission mechanism 100 includes an input component 110 and a switching component 120.

[0048] The input component 110 has a conveying channel 1121 for conveying a predetermined brake pipe connector W along a first horizontal direction D1. The conveying channel 1121 has a rectangular cross section that mates with the sleeve plate portion. The transition rod portion and the sleeve plate portion are inserted into the conveying channel 1121 and the connecting column portion abuts against the opening of the conveying channel 1121.

[0049] In this embodiment, the input component 110 further includes a rotary screen box 111 and a vertical vibrating feeder 112. The rotary screen box 111 contains a batch of predetermined brake pipe connectors W. The conveying channel 1121 is formed on the vertical vibrating feeder 112. The rotary screen box 111 automatically rotates and vibrates the predetermined brake pipe connectors W and conveys them to the conveying channel 1121. The vertical vibrating feeder 112 then conveys the predetermined brake pipe connectors W to the cutting component 120 through the conveying channel 1121.

[0050] The switching assembly 120 includes a switching cylinder 121, a switching fixture 122, an ejection cylinder 123, an ejection fixture 124, and a stop body 125.

[0051] The switching cylinder 121 is used for linear drive along the second horizontal direction D2. The switching fixture 122 is set on the output end of the switching cylinder 121. The switching fixture 122 has a switching through groove 1221 that corresponds to and is linearly continuous with the conveying channel 1121. The switching through groove 1221 has the same cross-section as the conveying channel 1121. The switching through groove 1221 is used to receive the predetermined brake pipe connector W conveyed by the conveying channel 1121. In this embodiment, the surfaces of all cylinder elements including the switching cylinder 121 of the brake pipe connector detection device 1000 always have reed switches (not shown in the figure). The output shaft of all cylinder elements is provided with a magnetic ring corresponding to the reed switch, so that the operation of the output shaft of all cylinder elements can be maintained at a predetermined stroke.

[0052] Ejector cylinder 123 is used for linear drive along a third horizontal direction D3, which is parallel to the first horizontal direction D1. Ejector fixture 124 is disposed on the output end of ejector cylinder 123. Ejector fixture 124 has an ejector portion 1241 extending along the third horizontal direction D3. The ejector portion 1241 is adapted to the size of the cutting through groove 1221. A predetermined station is located on the third horizontal direction D3 corresponding to the ejector portion 1241. The predetermined station and the ejector... Parts 1241 are located on opposite sides of the switching fixture 122. Specifically, when the switching through groove 1221 contains a predetermined brake pipe connector W, the switching cylinder 121 drives the switching fixture 122 so that the switching through groove 1221 corresponds to the ejection part 1241 in the third horizontal direction D3. When the ejection cylinder 123 drives the ejection fixture 124, the ejection part 1241 ejects the predetermined brake pipe connector W from the switching through groove 1221 along the third horizontal direction D3.

[0053] The stop body 125 corresponds to the cutting fixture 122 in the second horizontal direction D2, and the stop body 125 and the cutting through groove 1221 are located on opposite sides of the ejector 1241. Specifically, when the cutting cylinder 121 drives the cutting fixture 122 to move, the stop body 125 can limit the stop position of the cutting fixture 122 in the second horizontal direction D2, so that the cutting through groove 1221 and the ejector 1241 are precisely aligned in the third horizontal direction D3.

[0054] The brake pipe joint testing mechanism 200 includes a reference component 210 and a testing component 220.

[0055] like Figure 6 and Figure 7 As shown, the reference assembly 210 includes a positioning fixture 211, a reference cylinder 212, and a reference fixture 213.

[0056] The reference cylinder 212 is used for linear drive along the fourth horizontal direction D4, the reference fixture 213 is set on the output end of the reference cylinder 212, and the positioning fixture 211 is fixed on the reference fixture 213.

[0057] The positioning fixture 211 has a vertical positioning through groove, which is the predetermined station 2111. The extension direction of the predetermined station 2111 / positioning through groove is perpendicular to the fourth horizontal direction D4. The predetermined station 2111 has a rectangular cross section that mates with the sleeve plate portion. The transition rod portion and the sleeve plate portion are inserted into the positioning through groove, and the connecting column portion abuts against the opening on one side of the predetermined station 2111 / positioning through groove. Specifically, the ejector portion 1241 pushes the predetermined brake pipe connector W into the predetermined station 2111, and at this time, the predetermined brake pipe connector W abuts against the opening on one side of the predetermined station 2111 through the connecting column portion.

[0058] Specifically, the reference fixture 213 has a detection half-slot 2131 that is vertically connected to the predetermined station 2111, and the detection half-slot 2131 is located on the surface of the reference fixture 213 away from the reference cylinder 212. The detection half-slot 2131 is open towards the ejector 1241 in the third horizontal direction D3 and open towards the outside in the fourth horizontal direction D4.

[0059] The inspection semi-groove 2131 has a workpiece reference surface 21311 adjacent to the predetermined station 2111 surface and perpendicular to the fourth horizontal direction D4. The workpiece reference surface 21311 has a sleeve hole reference ball protrusion 21311a and four planar reference ball protrusions 21311b. The four planar reference ball protrusions 21311b are evenly distributed around the sleeve hole reference ball protrusion 21311a. The sleeve hole reference ball protrusion 21311a is coaxially corresponding to the sleeve through hole, and the planar reference ball protrusions 21311b correspond to the solid plate surface of the sleeve plate. Specifically, the workpiece reference surface 21311 is a vertical plane. When the predetermined brake pipe connector W enters the predetermined station, most of the sleeve plate corresponds to the workpiece reference surface 21311 in the fourth horizontal direction D4.

[0060] like Figure 8 and Figure 9 As shown, the detection component 220 includes a four-jaw chuck 221, a chuck drive motor 222, a bevel gear drive motor 223, and a dotting drive cylinder 224.

[0061] like Figure 10 As shown, the positioning axis of the four-jaw chuck 221 extends along the fourth horizontal direction D4. The four-jaw chuck 221 includes a chuck base 2211, a chuck base shell 2212, a rotating base plate 2213, a drive bevel gear 2214, four movable clamping parts 2215, and a dotting pin bar 2216.

[0062] The four-jaw chuck 221 is mounted on the output end of the chuck drive motor 222. The dotting drive cylinder 224 is used for linear drive along the fourth horizontal direction D4. The dotting needle rod 2216 is coupled to the output end of the dotting drive cylinder 224. When the dotting drive cylinder 224 is activated, the dotting needle rod 2216 moves toward or away from the workpiece reference surface 21311. When the chuck drive motor 222 rotates, the four-jaw chuck 221 rotates around its own positioning axis. The output end of the bevel gear drive motor 223 is rotatably coupled to the drive bevel gear 2214. The dotting needle rod 2216 is correspondingly mounted on the movable clamping part 2215. Specifically, the chuck drive motor 222 is fixed to the output end of the dotting drive cylinder 224 through a fixed plate frame (not shown in the figure), thereby realizing the output coupling of the dotting needle rod 2216 and the dotting drive cylinder 224 through the chuck drive motor 222.

[0063] Specifically, the chuck base 2211 and the chuck base shell 2212 are fitted together to cover the rotating base 2213 inside. The chuck base shell 2212 has a cross-shaped guide groove 2212a on the plane facing the fourth horizontal direction D4. The movable clamping part 2215 is movably disposed in the guide groove 2212a, and the guide groove 2212a connects the inside and outside of the four-jaw chuck 221 in the fourth horizontal direction D4.

[0064] The movable clamping part 2215 has a clamping position (not shown in the figure) facing the outside of the four-jaw chuck 221, and a rack part (not shown in the figure) extending towards the inside of the four-jaw chuck 221 and along the extending direction of the guide groove 2212a. There are four dotting pin bars 2216, which are detachably provided on the clamping positions of the four movable clamping parts 2215, and the dotting pin bars 2216 extend along the fourth horizontal direction D4. The free end of the dotting pin bars 2216 is perpendicular to the workpiece reference surface 21311.

[0065] Specifically, the head of the injection needle bar 2216 is equipped with an independent pressure sensor (not shown in the attached figure) that provides feedback pressure data.

[0066] The rotating base disk 2213 has a mating gear part 2213a and a surface driving spiral line 2213b formed on opposite sides in the fourth horizontal direction D4. The mating gear part 2213a meshes with the driving bevel gear 2214, and the movable clamping part meshes with the surface driving spiral line 2213b through the rack part at the bottom. Thus, when the bevel gear drive motor 223 rotates, the dotting needle bar 2216 moves closer to or further away from the positioning axis of the four-jaw chuck 221.

[0067] The transfer assembly 300 includes a tilting cylinder 310, a first finger cylinder 320, and a vertical drive cylinder 330.

[0068] A vertical drive cylinder 330 is fixed on the equipment frame 1000A and is used to drive vertically. A flip cylinder 310 is located at the output end of the vertical drive cylinder 330, and a first finger cylinder 320 is located at the output end of the flip cylinder 310. The first finger cylinder 320 is used to clamp the circumference of the connecting column located at the predetermined work station 2111. The flip cylinder 310 is used to perform a half-circle flip movement of the first finger cylinder 320 in the vertical plane. Specifically, the predetermined brake pipe connector W is kept vertical in the predetermined work station 2111, the output jaws of the first finger cylinder 320 are horizontal, and after the first finger cylinder 320 clamps the connecting column through the jaws, it rotates 180° clockwise around the output shaft of the flip cylinder 310. At this time, the predetermined brake pipe connector W clamped by the first finger cylinder 320 is still vertical, but the connecting column and the connecting blind hole face downwards, corresponding to the end of the output mechanism 400.

[0069] Specifically, the dot-mapping inspection process for the sleeve plate is as follows:

[0070] First, when there is no predetermined brake pipe connector W in the predetermined workstation 2111, the dotting drive cylinder 224 drives the dotting needle rod 2216 to make point contact with the plane reference ball convex 21311b, and uses the pressure feedback data at this time as the inspection reference data of the pressure sensor at the free end of the dotting needle rod 2216. This step is called the zeroing step, which can also be performed manually by the operator.

[0071] Then, when there is no predetermined brake pipe connector W in the predetermined work station 2111, and the output end of the reference cylinder 212 is activated, causing the planar reference ball protrusion 21311b to abut against the sleeve plate, the four planar reference ball protrusions 21311b constitute the reference plane for measuring the flatness of the sleeve plate, and the sleeve hole reference ball protrusion 21311a cooperates with the sleeve through hole. At this time, through the cooperation of the dotting drive cylinder 224, the chuck drive motor 222 and the bevel gear drive motor 223, the free end of the dotting needle rod 2216 takes pressure feedback data at multiple points on the solid plate surface of the sleeve plate in a spiral path. The operator can obtain the flatness of the sleeve plate based on the pressure feedback data. This step is called the flatness data acquisition step, which can also be implemented manually by the operator.

[0072] Next, the output end of the reference cylinder 212 reverses its action, causing the planar reference ball protrusion 21311b to leave the sleeve plate portion, while maintaining the insertion and engagement of the sleeve hole reference ball protrusion 21311a with the sleeve through hole. At this time, the pressure feedback data from multiple points continues to be collected through the cooperation of the dotting drive cylinder 224, the chuck drive motor 222, and the bevel gear drive motor 223, following a spiral path. Based on the multiple pressure feedback change data obtained in the relative flatness data acquisition step, the operator can obtain the perpendicularity of the sleeve through hole relative to the sleeve plate portion. This step is called the perpendicularity data acquisition step, which can also be performed manually by the operator.

[0073] Finally, the output end of the reference cylinder 212 continues to move in the opposite direction, causing the reference ball protrusion 21311a of the sleeve hole to disengage from the sleeve through hole and return to the initial position before the start of the test. At the same time, the dotting drive cylinder 224, the chuck drive motor 222 and the bevel gear drive motor 223 move accordingly and return to the initial position before the start of the test.

[0074] like Figure 11 As shown, the output mechanism 400 includes a synchronous conveyor belt 410, a synchronous drive motor 420, and a conveyor base 430.

[0075] The synchronous conveyor belt 410 is driven by a synchronous drive motor 420, thereby transmitting power in a straight line. Multiple conveyor bases 430 are detachably provided on the synchronous conveyor belt 410, and the conveyor bases 430 are transmissively arranged.

[0076] The synchronous conveyor belt 410 is used to convey and output a predetermined brake pipe connector W through the conveyor base 430. Specifically, multiple output bases 430 are evenly arranged on the synchronous conveyor belt 410, and based on external commands, when the predetermined brake pipe connector W held by the first finger cylinder 320 corresponds to the end of the output mechanism 400, one output base 430 is located directly below the corresponding connection blind hole of the predetermined brake pipe connector W.

[0077] like Figure 12 As shown, the conveying base 430 has a vertically upward extending retaining protrusion 431, which is used to engage with the connecting blind hole, so that the predetermined brake pipe connector W is inserted into the conveying base 430.

[0078] Specifically, the output mechanism 400 also includes a positive positioning block 440, such as Figure 13As shown, the positioning block 440 is located directly above the synchronous conveyor belt 410 and close to the end of the synchronous conveyor belt 410 corresponding to the transfer component 300. The positioning block 440 has a vertically downward-opening positioning through groove 440a, and the positioning through groove 440a corresponds to and matches the sleeve plate portion. When the predetermined brake pipe connector W is conveyed on the synchronous conveyor belt 410, the sleeve plate portion is located above and continues to be conveyed through the positioning through groove 440a. If, due to an accident, the predetermined brake pipe connector W does not maintain a vertical position on the conveying base 430, it interferes with the positioning through groove 440a, triggering the brake pipe connector detection device 1000 to stop operating.

[0079] The appearance acquisition unit 500 includes at least one panel acquisition component 510 and a cylindrical surface acquisition component 520. In this embodiment, the number of panel acquisition components 510 is two.

[0080] The panel acquisition component 510 includes a first fixed bracket 511, a light-blocking housing 512, and a panel appearance acquisition camera 513.

[0081] Both the light-blocking housing 512 and the panel appearance acquisition camera 513 are mounted on the first fixed bracket 511. In this embodiment, the two first fixed brackets 511 are located near the opposite outer sides of the synchronous conveyor belt 410.

[0082] The light-blocking housing 512 is located directly above the synchronous conveyor belt 410 and is open to the surface of the synchronous conveyor belt 410. The light-blocking housing 512 is open at both ends in the conveying direction of the synchronous conveyor belt 410. The light-blocking housing 512 has viewing windows on both sides (not shown in the figure). When the synchronous conveyor belt 410 drives the predetermined brake pipe joint W into the light-blocking housing 512, the viewing windows are connected to the sleeve plate portion.

[0083] The appearance acquisition camera 513 is located on the side of the synchronous conveyor belt 410, and the camera optical axis corresponds to the perspective window, so as to acquire data on the appearance image of the sleeve plate. This allows the operator to obtain information on the surface defects of the sleeve plate from the terminal based on the data. Specifically, during data acquisition, the light-blocking housing 512 blocks external interference light, thereby making the data more accurate.

[0084] like Figure 14 As shown, the cylindrical surface acquisition component 520 includes a second fixed bracket 521, a rotary cylinder 522, and a cylindrical surface appearance acquisition camera (not shown in the attached figure).

[0085] A rotary cylinder 522 is mounted on a second fixed bracket 521. The output end of the rotary cylinder 522 has a pair of plate-shaped clamping fingers 5221 extending toward the synchronous conveyor belt 410. The plate-shaped clamping fingers 5221 are used to clamp and engage with the sleeve plate. When the rotary cylinder 522 rotates, the pair of plate-shaped clamping fingers 5221 drive the predetermined brake pipe connector W to rotate. Specifically, a blocking sensor (not shown in the figure) is provided on the inner wall of the plate-shaped clamping fingers 5221. When the sleeve plate engages with the pair of plate-shaped clamping fingers 5221, the blocking sensor is triggered, thereby causing the rotary cylinder 522 to move and causing the predetermined brake pipe connector W to rotate about the fixed protrusion 431 as the axis. In this embodiment, a ring light 524 is also provided on the second fixed bracket 521, facing the synchronous conveyor belt 410 and surrounding the plate-shaped clamping fingers 5221. The rotary cylinder 522 is triggered three times each time, and each time the predetermined brake pipe connector W rotates 120°.

[0086] The cylindrical appearance acquisition camera is located on the side of the synchronous conveyor belt 410, and the camera optical axis corresponds to the surface of the synchronous conveyor belt 410. In this way, the cylindrical appearance acquisition camera can acquire appearance image data of the entire circumference of the connected column. Specifically, the interval between two adjacent movements of the rotary cylinder 522 is one second.

[0087] like Figure 15 As shown, the discharge unit 600 includes a linear motor 610, a lifting cylinder 620, a second finger cylinder 630, a defective product receiving box 640, a good product output ramp 650, and a good product receiving box 660.

[0088] Specifically, the defective product receiving box 640, the good product output ramp 650, and the good product receiving box 660 are all located near the outer side of the end of the output mechanism 400, which is far from the transfer assembly 300.

[0089] Linear motor 610 passes directly above defective product receiving box 640 and good product output ramp 650. Linear motor 610 is coupled to the output of lifting cylinder 620. Second finger cylinder 630 is located at the output end of lifting cylinder 620 and directly above synchronous conveyor belt 410. Second finger cylinder 630 is used to clamp the plate surface of the sleeve plate. Lifting cylinder 620 is used to raise and lower second finger cylinder 630. Specifically, based on external commands, when the predetermined brake pipe connector W passes the appearance acquisition unit 500 and reaches the corresponding end of synchronous conveyor belt 410, an output base 430 is located directly below the corresponding gripper of second finger cylinder 630. Lifting cylinder 620 drives second finger cylinder 630 to move towards sleeve plate. After second finger cylinder 630 clamps predetermined brake pipe connector W with gripper, lifting cylinder 620 drives second finger cylinder 630 to lift predetermined brake pipe connector W.

[0090] When the linear motor 610 drives the lifting cylinder 620 to move, the second finger cylinder 630 selectively releases the predetermined brake connector W to either the defective product receiving box 640 or the good product output ramp 650 based on a predetermined command. Specifically, based on the flatness data of the sleeve plate portion measured by the detection component 220 on the connecting plate portion, the perpendicularity data of the sleeve through hole of the sleeve plate portion, and the appearance data of the sleeve plate portion and the connecting column portion obtained by the appearance acquisition unit 500, in this embodiment, the relevant control program determines whether the predetermined brake connector W is a good product or a defective product based on the data, and triggers the second finger cylinder 630 to release the predetermined brake connector W of the good product or the defective product at two different positions, and these two positions are respectively located directly above the defective product receiving box 640 and the good product output ramp 650.

[0091] The good product output ramp 650 is inclined downwards. The predetermined brake pipe connector W held by the second finger cylinder 630 is located directly above the upper end of the good product output ramp 650. The good product receiving box 660 is connected to the lower end of the good product output ramp 650. The predetermined brake pipe connector W, which is determined to be a good product, falls from the second finger cylinder 630 into the good product output ramp 650 and enters the good product receiving box 660 through the good product output ramp 650.

[0092] The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications or variations that can be made by those skilled in the art without creative effort within the scope of the appended claims are still within the scope of protection of this patent.

Claims

1. A brake pipe connector conveying mechanism for conveying a predetermined brake pipe connector to a predetermined workstation, the predetermined brake pipe connector having a connecting column portion, a transition rod portion, and a sleeve plate portion that are sequentially and linearly continuous, the sleeve plate portion having a sleeve through hole, the connecting column portion and the transition rod portion being coaxial and having a diameter greater than the diameter of the transition rod portion and the thickness of the sleeve plate portion, characterized in that, include: A conveying channel for conveying the predetermined brake pipe connector along a first horizontal direction, the conveying channel having a rectangular cross-section that mates with the sleeve plate portion, the transition rod portion and the sleeve plate portion being inserted into the conveying channel, and the connecting post portion abutting against the opening of the conveying channel. The switching assembly includes a switching cylinder, a switching fixture, an ejector cylinder, and an ejector fixture. The switching cylinder is used for linear drive along the second horizontal direction. The switching fixture is disposed on the output end of the switching cylinder. The switching fixture has a continuous switching groove corresponding to the conveying channel. The switching groove has the same cross-section as the conveying channel. The switching groove is used to receive the predetermined brake pipe connector conveyed by the conveying channel. The ejector cylinder is used for linear drive along a third horizontal direction, which is parallel to the first horizontal direction. The ejector fixture is disposed on the output end of the ejector cylinder. The ejector fixture has an ejector portion extending along the third horizontal direction. The predetermined station corresponds to the ejector portion in the third horizontal direction. The predetermined station and the ejector portion are respectively located on opposite sides of the cutting fixture.

2. The brake pipe connector conveying mechanism according to claim 1, characterized in that: in, The switching assembly further includes a stop body that corresponds to the switching fixture in the second horizontal direction, and the stop body and the switching through groove are located on opposite sides of the ejector portion.

3. A brake hose connector testing mechanism, used to test a predetermined brake hose connector as described in claim 1 or 2, characterized in that, include: The reference components include a reference cylinder, a reference fixture, and a positioning fixture. The reference cylinder is used for linear drive along the fourth horizontal direction, and the reference fixture is disposed on the output end of the reference cylinder. The reference fixture has a workpiece reference surface perpendicular to the fourth horizontal direction. The positioning fixture has a vertical positioning through groove, the extension direction of which is perpendicular to the fourth horizontal direction, and the workpiece reference surface is located near the lower opening of the positioning through groove. The positioning through groove has a rectangular cross-section that mates with the sleeve plate portion, and the transition rod portion and the sleeve plate portion are inserted into the positioning through groove, while the connecting column portion abuts against the opening on the other side of the positioning through groove. The detection assembly has a dotting drive cylinder and a plurality of dotting needle rods extending along the fourth horizontal direction. The dotting drive cylinder is used for linear drive along the fourth horizontal direction. The output of the dotting needle rods is coupled to the output of the dotting drive cylinder, and the free end of the dotting needle rods is perpendicular to the workpiece reference surface.

4. The brake pipe joint detection mechanism according to claim 3, characterized in that: in, The workpiece reference surface has a sleeve hole reference ball protrusion and four planar reference ball protrusions. The four planar reference ball protrusions are evenly distributed around the sleeve hole reference ball protrusion. The sleeve hole reference ball protrusion is coaxially corresponding to the sleeve through hole, and the planar reference ball protrusions are corresponding to the solid plate surface of the sleeve plate.

5. The brake pipe joint detection mechanism according to claim 3, characterized in that: in, The detection assembly includes a four-jaw chuck and a bevel gear drive motor. The positioning axis of the four-jaw chuck extends along the fourth horizontal direction, and the four-jaw chuck has four movable clamping parts and a drive bevel gear. The output end of the bevel gear drive motor is rotatably coupled to the drive bevel gear, and the dotting needle bar is correspondingly disposed on the movable clamping part, so that when the bevel gear drive motor rotates, the dotting needle bar moves closer to or further away from the positioning axis of the four-jaw chuck.

6. The brake pipe joint detection mechanism according to claim 5, characterized in that: in, The detection component also includes a chuck drive motor. The four-jaw chuck is mounted on the output end of the chuck drive motor. When the chuck drive motor rotates, the four-jaw chuck rotates around its own positioning axis.

7. A brake hose connector testing device, used to test a predetermined brake hose connector as described in any one of claims 1-6, characterized in that, include: The brake pipe connector conveying mechanism as described in claim 1 or 2, The brake pipe joint inspection mechanism as described in any one of claims 3-6, wherein the positioning slot is the predetermined work station. A transfer assembly and an output mechanism, the output mechanism having a synchronous conveyor belt, the transfer assembly being used to transfer the predetermined brake connector from the predetermined station to the synchronous conveyor belt, the synchronous conveyor belt being used to deliver the predetermined brake connector.

8. The brake pipe joint testing equipment according to claim 7, characterized in that: in, The transfer assembly includes a tilting cylinder and a first finger cylinder disposed at the output end of the tilting cylinder. The first finger cylinder is used to clamp the circumferential surface of the connecting column located at the predetermined workstation. The tilting cylinder is used to tilt the first finger cylinder half a circle in a vertical plane. The free end of the connecting column has a blind connection hole extending axially. The synchronous conveyor belt is detachably provided with multiple conveyor bases, and the conveyor bases are tractably provided. Each conveyor base has a vertically extending retaining protrusion, which is used to engage with the connecting blind hole, so that the predetermined brake pipe connector is inserted into the conveyor base.

9. The brake pipe joint testing equipment according to claim 7, characterized in that, Also includes: The appearance acquisition unit includes at least one panel acquisition component and one cylindrical acquisition component. The panel acquisition component includes a first fixed bracket, a light-blocking housing, and a panel appearance acquisition camera, all mounted on the first fixed bracket. The light-blocking housing is located directly above the synchronous conveyor belt and is open towards the surface of the synchronous conveyor belt, with the light-blocking housing opening at both ends in the conveying direction of the synchronous conveyor belt. The light-blocking housing has a viewing window, and when the predetermined brake pipe connector enters the light-blocking housing, the viewing window corresponds to the sleeve plate portion. The camera for capturing the appearance of the panel is located on the side of the synchronous conveyor belt, and the camera's optical axis corresponds to the viewing window. The cylindrical surface acquisition component includes a cylindrical surface appearance acquisition camera, a second fixed bracket, and a rotary cylinder mounted on the second fixed bracket. The output end of the rotary cylinder has a pair of plate-shaped clamping fingers extending toward the synchronous conveyor belt, and these plate-shaped clamping fingers are used to clamp and engage with the sleeve plate, so that when the rotary cylinder rotates, the pair of plate-shaped clamping fingers drive the predetermined brake pipe connector to rotate. The cylindrical appearance acquisition camera is located on the side of the synchronous conveyor belt, and the camera optical axis corresponds to the surface of the synchronous conveyor belt.

10. The brake pipe joint testing equipment according to claim 7, characterized in that, Also includes: The discharge unit includes a linear motor, a lifting cylinder, a second finger cylinder, a defective product receiving box, and a good product output ramp. The linear motor passes directly above the defective product receiving box and the good product output ramp, and the linear motor is coupled to the output of the lifting cylinder. The second finger cylinder is located at the output end of the lifting cylinder and is directly above the synchronous conveyor belt. The second finger cylinder is used to clamp the surface of the sleeve plate. The lifting cylinder is used to raise and lower the second finger cylinder. The good product output ramp is inclined downwards. When the linear motor drives the lifting cylinder to move, the second finger cylinder selectively releases the predetermined brake connector to the defective product receiving box or the good product output ramp based on a predetermined command.

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