An automatic cycle feeding system for crimping tubes suitable for processing overhead wire hanging strings

Abstract

The present invention discloses an automatic circulation feeding system for crimping tubes suitable for processing contact network hanging strings, which belongs to the technical field of contact network hanging string processing, and includes a crimping tube feeding buffer assembly and a crimping tube automatic feeding assembly. The former performs buffering and vibration conveying on the crimping tubes, so that the crimping tubes to be loaded can be picked up one by one on the crimping tube picking tool and sent to the picking position accordingly, and then the corresponding clamping of the crimping tube automatic feeding assembly is used to realize the accurate transfer of the crimping tubes between the pre-stored workstation, the picking position and the loading position. The automatic circulation feeding system for crimping tubes suitable for processing contact network hanging strings of the present invention has a simple structure and is easy to operate. It effectively realizes the buffering, one-by-one picking and continuous automatic feeding of the crimping tubes, does not require manual operation, reduces labor intensity, improves production efficiency, improves product quality and the stability of batch operations, reduces the cost of hanging string processing, and has good application prospects and promotion value.

Description

Technical Field

[0001] The invention belongs to the technical field of overhead wire hanging string processing, in particular to the field of crimping tube feeding, and specifically relates to an automatic circulation feeding system for crimping tubes suitable for overhead wire hanging string processing. Background Art

[0002] With the rapid development of my country's railway construction, new requirements have been put forward for the process quality standards of relevant components in the railway industry, and the requirements for the construction and maintenance accuracy of the driving line are getting higher and higher. In the railway driving line, the overhead contact network is an important part to ensure the normal operation of the railway. It is connected to the electric railway power supply line and is responsible for supplying power to the entire electric locomotive traction system and train ancillary equipment.

[0003] In the contact network system of the train, the suspension string is an indispensable structure, which is mainly used to stably suspend the contact line under the load-bearing cable, ensure the stability and safety of the contact line setting, and ensure that the contact line can be reliably matched with the pantograph on the top of the train.

[0004] In the pre-assembly process of overhead wire hanging strings, the application of crimping tubes is often indispensable, and the existing crimping tube loading, clamping, and pressing processes often rely on the operation of skilled workers. In addition, the crimping tubes are of different sizes and shapes, and the amount is huge, which leads to cumbersome manual operation procedures, high labor intensity, low production efficiency, and high suspension processing costs. At the same time, manual assembly of crimping tubes is difficult to guarantee product quality, the consistency of product performance is poor, and the qualified rate is low. There is a risk of crimping failure of the crimping tube in later applications.

[0005] In addition, in the existing pre-assembly production of suspension strings, there is no concept of crimping tube cache. When workers need to assemble a suspension string, they have to take two crimping tubes. The above-mentioned defects of manual operation also exist, and the continuity of the suspension string processing is poor. Summary of the invention

[0006] In response to one or more of the above defects or improvement needs in the prior art, the present invention provides an automatic circulation feeding system for crimping tubes suitable for contact network suspension string processing, which can effectively realize the caching and continuous automatic feeding of crimping tubes during the suspension string processing, ensure the continuity and accuracy of the crimping tube feeding process, and reduce the amount of manual labor in the crimping tube feeding process.

[0007] To achieve the above-mentioned purpose, the present invention provides a crimping tube automatic circulation feeding system suitable for processing catenary suspension strings, which comprises a crimping tube feeding buffer component and a crimping tube automatic feeding component;

[0008] The compression tube feeding buffer assembly comprises a compression tube vibration plate, a compression tube channel and a compression tube material taking tool; the compression tube vibration plate has a cavity structure of a certain depth, which is used to accommodate the compression tube and convey the compression tube vibration to the compression tube channel; the inlet end of the compression tube channel is connected to the outer periphery of the compression tube vibration plate and extends along the tangential direction of the compression tube vibration plate, and the outlet end of the compression tube channel is connected to the compression tube material taking tool; the compression tube material taking tool comprises a taking block with a receiving groove, which is correspondingly arranged at the outlet end of the compression tube channel and can be lifted and lowered vertically; a single compression tube can enter the receiving groove from the outlet end of the compression tube channel and move to the taking position of the compression tube with the taking block;

[0009] The automatic crimping tube feeding assembly includes a multi-axis manipulator and a crimping tube feeding unit; one end of the multi-axis manipulator is installed on the working platform, and the other end corresponds to the crimping tube feeding unit, so as to realize the reciprocating movement of the crimping tube feeding unit between the crimping tube picking position and the crimping tube feeding position; the crimping tube feeding unit includes two clamping parts arranged opposite to each other; one end of the clamping part is the clamping end, and the other end is the driving end, and a driving mechanism is arranged corresponding to the two driving ends to drive the two clamping ends to approach or move away synchronously, so as to realize the closing or opening of the crimping tube feeding unit.

[0010] As a further improvement of the present invention, the accommodating groove is opened on the side of the material taking block facing the outlet end of the compression tube channel, and a baffle is arranged on the end face of the side of the material taking block; the baffle is fixed on the end face of the material taking block and can block the outlet end of the compression tube channel when the material taking block moves to the loading position.

[0011] As a further improvement of the present invention, the compression-tube brake plate includes a vibration plate surrounding plate and a vibration plate bottom plate; the vibration plate surrounding plate is circumferentially wrapped around the outer periphery of the vibration plate bottom plate; the vibration plate bottom plate is a vibration actuating mechanism.

[0012] As a further improvement of the present invention, the vibration disk bottom plate is also a rotatable mechanism and / or a liftable mechanism, and the inlet end of the crimping tube channel is arranged on the upper part of the crimping tube vibration disk.

[0013] As a further improvement of the present invention, a rotating arm is further arranged between the crimping tube feeding unit and the multi-axis manipulator; the rotating arm can rotate around the axis, and a plurality of mounting positions are distributed at an angle on the side away from the multi-axis manipulator, which can be used for the simultaneous installation of multiple crimping tube feeding units.

[0014] As a further improvement of the present invention, arc-shaped grooves are respectively provided on the opposite end surfaces of the two clamping ends, so that the crimping tube can be respectively embedded in the corresponding arc-shaped grooves with its two sides when being clamped.

[0015] As a further improvement of the present invention, the height of the inlet end of the crimping tube channel is higher than the height of the outlet end thereof, so that the crimping tube can move from the inlet end to the outlet end under the action of gravity.

[0016] As a further improvement of the present invention, the compression tube channel includes a pair of oppositely arranged channel side plates and a channel bottom plate arranged between the two channel side plates; the channel bottom plate is arranged at a height lower than the top of the channel side plates.

[0017] As a further improvement of the present invention, the crimp tube material removal tooling further includes a lifting block, a lifting mechanism and a mounting plate;

[0018] The material taking block is arranged on the lifting block, and the lifting block corresponds to and matches the output end of the lifting mechanism; the mounting plate is fixedly connected to the lifting mechanism and is used for the installation of the crimping tube material taking tooling.

[0019] As a further improvement of the present invention, the width of the inlet end of the crimping tube channel is greater than the width of the outlet end thereof.

[0020] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0021] In general, the above technical solution conceived by the present invention has the following beneficial effects compared with the prior art:

[0022] (1) The automatic circulation feeding system for crimped tubes suitable for processing contact network suspension strings of the present invention guides each crimped tube to a crimped tube picking tool to wait for being grabbed and fed by constructing a crimped tube vibration plate and a crimped tube channel, thereby providing conditions for the feeding and grabbing mechanism to automatically and continuously supply crimped tubes, replacing traditional manual feeding. It has the characteristics of high efficiency, precision, and a high degree of automation, solves the problem of automatic feeding and assembly of crimped tubes, and constitutes an important part of the feeding of the suspension string pre-assembly automatic production line, reduces the extra manual labor introduced by the feeding and caching of crimped tubes during the suspension string processing, reduces the labor intensity and labor cost of the suspension string processing, improves the degree of automation of the suspension string assembly, and reduces the cost of the suspension string assembly.

[0023] (2) The automatic circulating feeding system for crimping tubes suitable for processing contact network hanging strings of the present invention adopts a crimping tube vibration plate to vibrate and convey a large number of crimping tubes stored therein, adopts a tangentially contracted crimping tube channel to arrange the crimping tubes in a single row linearly, and the crimping tubes discharged from the end of the crimping tube channel are supported and limited one by one by a crimping tube picking tool, thereby creating favorable conditions for grabbing by the grabbing equipment at the next workstation; thereby, crimping tube caching and continuous automatic feeding are realized without manual operation, reducing labor intensity, improving productivity, and enhancing product quality and stability of batch operations.

[0024] (3) The automatic circulating feeding system for crimping tubes suitable for processing contact network hanging strings of the present invention has a crimping tube vibration plate bottom plate that is liftable and / or rotatable. The liftable vibration plate bottom plate can store more layers of crimping tubes stacked together, eliminating the need to frequently add crimping tubes, thereby increasing the single-time storage capacity; the rotatable vibration plate bottom plate can provide friction force along the circumferential tangential direction for the crimping tube, making it easier for the crimping tube to enter the crimping tube channel and running faster.

[0025] (4) The automatic circulating feeding system for crimping tubes suitable for processing contact wire suspension strings of the present invention particularly structures the crimping tube channel to be wider at the entrance and narrower at the exit, thereby preventing blockage at the entrance and ensuring the smoothness of single discharge at the exit. Furthermore, the overall width of the channel can be adjusted in time by moving the movable side plate, and crimping tubes of different sizes and shapes can be automatically adjusted to adapt.

[0026] (5) The automatic circulating feeding system for crimping tubes suitable for processing contact network hanging strings of the present invention is characterized in that a baffle is arranged at the outlet end of the crimping tube channel corresponding to the crimping tube feeding tooling, and the baffle follows the corresponding movement of the feeding block, so that the baffle can close the outlet end when a single crimping tube is supporting and feeding, thereby preventing the crimping tube in the crimping tube channel from falling, ensuring that the crimping tubes in the crimping tube channel can be accurately fed one by one, and further improving the accuracy of crimping tube feeding.

[0027] (6) The automatic cycle feeding system for crimping tubes suitable for processing contact network suspension strings of the present invention adopts a CNC combination of a multi-axis manipulator, a rotating arm, a crimping tube feeding unit and other mechanisms to achieve continuous reciprocating automatic feeding of crimping tubes without the need for manual operation, thereby reducing labor intensity, improving productivity, and enhancing product quality and the stability of batch operations.

[0028] (7) The automatic circulating feeding system for crimping tubes suitable for processing contact network suspension strings of the present invention is specially designed with two clamping ends for the structure of the crimping tube, and has corresponding arc-shaped grooves, which effectively realizes the reliable clamping of the crimping tube, so that the crimping tube feeding unit can be used for the clamping and feeding of crimping tubes of different sizes, thereby improving the accuracy and stability of the crimping tube clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 2. It is a schematic diagram of the three-dimensional structure of the automatic cycle feeding system for crimping tubes in an embodiment of the present invention;

[0030] Figure 2 2 is a schematic structural diagram of a crimping tube feeding unit of an automatic cycle feeding system for crimping tubes in an embodiment of the present invention;

[0031] Figure 3It is a schematic diagram of the three-dimensional structure of the crimp tube feeding buffer unit in an embodiment of the present invention;

[0032] Figure 4 It is a partial structural schematic diagram of a crimp tube feeding buffer unit in an embodiment of the present invention;

[0033] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0034] 410. Compression tube vibration plate, 4101. Vibration plate enclosure, 4102. Vibration plate bottom plate; 411. Compression tube channel, 4111. Channel bottom plate, 4112. Channel side plate; 412. Compression tube material removal tooling, 4121. Lifting block, 4122. Lifting mechanism, 4123. Mounting block, 4124. Material removal block, 4125. Accommodation tank; 413. Compression tube;

[0035] 51. Robot base, 52. Multi-axis robot, 53. Rotating arm, 55. Crimping tube feeding unit, 551. First clamping part, 552. Second clamping part, 553. First clamping plate, 554. Second clamping plate; 56. Power control unit. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. 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 present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] Example:

[0042] See also Figures 1 to 4 The automatic cycle feeding system for crimping tubes suitable for processing catenary suspension strings in the preferred embodiment of the present invention includes a crimping tube feeding buffer assembly and a crimping tube automatic feeding assembly. The former is mainly used for caching multiple crimping tubes and accurately taking materials one by one, and the latter is mainly used for clamping and feeding the crimping tubes that have been taken by the former to the next process, completing the matching of the crimping tubes and the stranded wires, and ensuring the subsequent processing process.

[0043] Specifically, the compression tube loading buffer assembly in the preferred embodiment is as follows: Figure 1 , 3 As shown in , 4, it includes a compression tube vibration plate 410, a compression tube channel 411 and a compression tube material pick-up tool 412. Among them, the compression tube vibration plate 410 is used to realize the storage of the compression tube 413 and the feeding to the compression tube channel 411; the two ends of the compression tube channel 411 are respectively connected to the compression tube vibration plate 410 and the compression tube material pick-up tool 412, which are used to send the compression tubes 413 to the compression tube material pick-up tool 412 one by one, and realize the buffering of several compression tubes 413 before feeding; the compression tube material pick-up tool 412 is used to realize the one-by-one feeding of the compression tubes 413 in the compression tube channel 411, and realize the support and limit of each compression tube 413, so that the compression tube feeding device can feed it to the next station.

[0044] Preferably, multiple sets of crimping tube channels 411 and crimping tube material pick-up tools 412 can be arranged in multiple tangential directions on the circumference of the crimping tube vibration plate 410. By constructing the crimping tube vibration plate 410 and the crimping tube channels 411, the crimping tubes 413 are guided to the crimping tube material pick-up tool 412 to wait for being grabbed, so that the subsequent crimping tube feeding device can automatically and continuously feed the crimping tubes 413, replacing the traditional manual feeding. It has the characteristics of high efficiency, precision, and high degree of automation, solves the problem of automatic feeding and assembly of crimping tubes, and constitutes an important part of the feeding process of the automatic production line for pre-assembly of hanging strings.

[0045] More specifically, the compression tube vibration plate 410 in the preferred embodiment includes a vibration plate enclosure 4101 and a vibration plate bottom plate 4112. The vibration plate enclosure 4101 is a ring plate structure with a circular cross section, which surrounds the outer periphery of the vibration plate bottom plate 4102 and forms a compression tube storage cavity of a certain depth above the vibration plate bottom plate 4102. At the same time, the vibration plate bottom plate 4102 is a vibration actuation mechanism, which can realize the driving and feeding of the compression tube 413 through vibration, and it is inclined toward the entrance of the compression tube channel 411, which facilitates the feeding of the compression tube 413 to the compression tube channel 411.

[0046] When there are multiple sets of compression tube channels 411, the middle of the vibration plate bottom plate 4102 is raised, and inclined bottom plate end surfaces are respectively provided corresponding to the multiple channel entrances. Of course, a vibration plate top plate can also be provided on the top of the vibration plate enclosure 4101 to form a closed accommodation space, but an injection window for the compression tube 413 is reserved on the top plate.

[0047] Further preferably, the vibration plate bottom plate 4102 is a lifting mechanism, which is used to move the stacked multiple layers of compression tubes to the compression tube channel 411 in a manner of lifting and vibrating, at which point one end of the compression tube channel 411 is connected to the upper part of the vibration plate enclosure 4101. In another preferred embodiment, the vibration plate bottom plate 4102 is configured as a rotatable mechanism, which is used to accelerate the compression tube friction to the compression tube channel 411. Alternatively, the vibration plate bottom plate 4102 can also be lifted and rotated at the same time, which is used to accelerate the stacked multiple layers of compression tubes to the compression tube channel 411 in a manner of lifting and vibrating and rotating; at this point, one end of the compression tube channel 411 is connected to the upper part of the vibration plate enclosure 4101. The present invention particularly structures the vibration plate bottom plate in a lifting and / or rotatable manner. The lifting vibration plate bottom plate can store more layers of compression tubes stacked together, without the need to frequently add compression tubes, thereby increasing the single storage capacity; the rotatable vibration plate bottom plate can provide friction along the circumferential tangential direction for the compression tube, making it easier to enter the compression tube channel, and the operation speed is faster.

[0048] like Figure 3 , 4As shown in the figure, the crimped tube channel 411 in the preferred embodiment includes a channel bottom plate 4111 and a channel side plate 4112; it may also include a crimped tube channel top plate to form a closed or semi-closed space, and the channel top plate may be made of a transparent or semi-transparent material for easy observation. The channel side plates 4112 are arranged in pairs and are arranged on both sides of the channel bottom plate 4111, and the channel bottom plate 4111 is clamped between the two side plates, and the setting height of the channel bottom plate 4111 is lower than the top of the channel side plate 4112, forming a through groove structure with a certain depth.

[0049] Furthermore, the width of the crimping tube channel entrance (close to the crimping tube vibration disk 410) is greater than the width of the crimping tube outlet (close to the crimping tube material removal tool 412). At the same time, the two channel side plates 4112 preferably include fixed side plates and movable side plates, and the movable side plates can be moved relative to the fixed side plates to adjust the horizontal width of the through-groove structure. Preferably, the channel bottom plate 4111 is inclined, and the vertical height at the entrance is higher than the height at the outlet (that is, it extends obliquely downward from one side of the crimping tube vibration disk 410 to one side of the crimping tube material removal tool 412), which is used to accelerate the flow of the crimping tube 413. Further preferably, the inclination angle of the channel bottom plate 4111 is adjustable, and the flow rate of the crimping tube 413 can be accelerated or slowed down as needed.

[0050] In a preferred embodiment of the present invention, the crimping tube channel is specially constructed to be wider at the entrance and narrower at the exit, which not only prevents blockage at the entrance but also ensures the smoothness of single discharge at the exit. At the same time, the through-slot width of the channel can be adjusted in time by moving the movable side plate to meet the caching and feeding requirements of crimping tubes of different sizes and shapes.

[0051] like Figure 4As shown in the figure, the crimping tube material taking tool 412 in the preferred embodiment includes a lifting block 4121, a lifting mechanism 4122, a mounting block 4123, and a material taking block 4124. Among them, the lifting block 4121 is matched and arranged at the output end of the lifting mechanism 4122, and can be vertically lifted and lowered under the drive of the lifting mechanism 4122. The lifting mechanism 4122 in the preferred embodiment is a lifting cylinder, which is arranged at the bottom of the lifting block 4121. At the same time, the mounting block 4123 is arranged on one side of the lifting mechanism 4122, and is fixedly connected to the lifting mechanism 4122, and is used to fix the lifting mechanism 4122 on the corresponding workbench. The material taking block 4124 is arranged on the top of the lifting block 4121, one side of which is directly opposite to the exit of the crimping tube channel 411, and a receiving groove 4125 is provided on the side end surface for realizing the limiting and receiving of the crimping tube 413. In a preferred embodiment, two material taking plates are arranged side by side on the top of the material taking block 4124, and material taking grooves are respectively provided on the two material taking plates, and the two material taking grooves are horizontally coaxial. Preferably, in the preferred embodiment, the opening length of the receiving groove 4125 in the direction of the crimping tube channel 411 is not less than the width of the crimping tube 413, so as to ensure that the crimping tube 413 can be reliably received in the receiving groove 4125.

[0052] Furthermore, a baffle (not shown in the drawings) is vertically arranged on one side of the lifting block 4121 and the lifting mechanism 4122 close to the crimping tube channel 411, and the top of the baffle is fixed below the accommodating groove 4125, so that when the lifting block 4121 rises, the baffle can close the outlet of the crimping tube channel 411 to prevent the crimping tube 413 at the outlet from falling. In a preferred embodiment of the present invention, the corresponding arrangement of the material taking block 4124 at the outlet of the crimping tube channel 411 allows the crimping tube 413 in the crimping tube channel 411 to be taken one by one, preventing the crimping tube from rotating in the horizontal plane, ensuring the continuity and accuracy of the material taking, and creating convenient conditions for the subsequent feeding device to grab. Of course, the above-mentioned vertical arrangement of the baffle is correspondingly arranged based on the vertical lifting process of the lifting block 4121. When the material taking block 4124 is arranged on the horizontal block for horizontal movement, a horizontal baffle can be arranged on the material taking block 4124, which can be specifically selected according to actual needs.

[0053] like Figure 1 , 2 As shown in , the automatic crimp tube feeding assembly in the preferred embodiment includes a robot base 51 , a multi-axis robot 52 , a rotating arm 53 , a crimp tube feeding unit 55 and a power control unit 56 .

[0054] Further, the multi-axis manipulator 52 is directly or indirectly mounted on the working platform. In the preferred embodiment, the indirect mounting is used as an example. The lower end of the multi-axis manipulator 52 is mounted on the working platform through the manipulator base 51, and a power control unit 56 is provided between the manipulator base 51 and the multi-axis manipulator 52 to control the corresponding rotation of each axis of the multi-axis manipulator 52. The degree of freedom of the multi-axis manipulator 52 is not less than six. Preferably, the multi-axis manipulator 52 is a six-axis manipulator, including an upper arm, a lower arm and a wrist connected in sequence. The front end of the lower arm, i.e., the wrist, is provided with a rotating arm 53. The rotating arm 53 can rotate around the axis. The rotating arm 53 is connected to the end of the multi-axis manipulator 52 through a rotating cylinder, and a plurality of mounting positions are distributed at angles to each other on the end face of the rotating arm 53 facing away from the multi-axis manipulator 52, such as mounting positions divided into three equal parts of 120°. Each mounting position is equipped with a plurality of identical or different tools as needed, such as a plurality of crimping tube feeding units 55 in this embodiment.

[0055] Of course, in actual settings, the crimping tube feeding unit 55, the connecting wire clamp feeding unit and the heart-shaped ring feeding unit can also be installed at the installation position of the rotating arm 53 at the same time, so as to realize the feeding of the crimping tube, the heart-shaped ring and the connecting wire clamp. The number of settings of various feeding units can be selected according to processing needs. Through the multi-axis manipulator 52 and the crimping tube feeding unit 55 specially designed for the crimping tube 413, it can effectively replace the traditional manual feeding, and has the characteristics of high efficiency, precision, and high degree of automation. It solves the problem of automatic feeding and assembly of crimping tubes and constitutes an important part of the feeding of the automatic production line for the pre-assembly of the suspension string.

[0056] Further, the crimp tube feeding unit 55 is as follows Figure 2 As shown in , it is used to realize the back and forth movement of the crimping tube 413 between a single material taking station and an assembly pressing station. Specifically, the crimping tube feeding unit 55 includes a first clamping portion 551 and a second clamping portion 552 arranged opposite to each other, which are used to clamp the outer periphery of the crimping tube 413 in the material taking position and to release the clamping and release the crimping tube 413 in the placing position.

[0057] Preferably, the first clamping portion 551 and the second clamping portion 552 are symmetrical structures, and the ends of the two clamping portions that are away from the clamping end portions (i.e., the driving ends) are matched in a pin-connected manner to form a "pincer" structure. A driving mechanism (e.g., a driving cylinder) is provided at the driving ends of the two clamping portions, which can drive the driving ends of the two clamping portions to move toward or away from each other synchronously, thereby achieving that the clamping ends of the two clamping portions can move toward or away from each other.

[0058] Furthermore, arc-shaped grooves are respectively provided on the opposite end surfaces of the two clamping ends for matching the outer arc surface of the crimping tube. When the two clamping ends are close to each other and matched accordingly, the two arc-shaped grooves can form an arc-shaped through hole for accommodating the crimping tube 413 between the two clamping ends, such as Figure 2 As shown in . By setting the arc-shaped through hole, the stability of the clamping of the crimping tube 413 can be further ensured, and the falling of the crimping tube 413 can be avoided. Preferably, a buffer structure is provided on the inner peripheral wall surface of the arc-shaped groove to reduce the damage to the crimping tube 413, and further ensure the quality of the finished hanging string.

[0059] Furthermore, corresponding to the two clamping parts, there are clamping plates in pairs, namely, a first clamping plate 553 and a second clamping plate 554. The two clamping parts are clamped side by side between the two clamping plates and can rotate in a plane parallel to the end faces of the two clamping plates to realize the opening or closing of the clamping end. At the same time, the crimping tube feeding unit 55 is installed on the installation position of the rotating arm 53 through the first clamping plate 553.

[0060] In addition, the power control unit 56 in the preferred embodiment is arranged at the end of the multi-axis manipulator 52, and is mainly used to control the rotation of each axis of the multi-axis manipulator 52 and the rotation of the rotating arm 53, as well as the closing or opening of the two clamping parts.

[0061] In the preferred embodiment of the present invention, a CNC combination of a multi-axis manipulator, a rotating arm, a crimping tube feeding unit and other mechanisms is adopted to realize continuous reciprocating automatic feeding of the crimping tube without manual operation, thereby reducing labor intensity, improving productivity, and enhancing product quality and the stability of batch operations.

[0062] On the other hand, for the automatic circulation feeding system for crimping tubes suitable for processing catenary suspension strings in the preferred embodiment of the present invention, its working process preferably includes the following steps:

[0063] S1, placing a number of compression tubes 413 in batches in the compression tube vibration plate 410;

[0064] S2. According to the type of the crimping tube 413 to be inserted, the movable side plate of the crimping tube channel 411 is moved to adjust the width of the crimping tube channel;

[0065] S3, start the vibration actuation mechanism of the crimp tube vibration plate 410, guide the crimp tubes 413 in the plate to the entrance of the crimp tube channel 411, and discharge them one by one from the exit along the crimp tube channel 411, and send them one by one into the receiving groove 4125 of the material taking block 4124;

[0066] S4, control the lifting mechanism 4122 to work, so that the lifting block 4121 drives the material taking block 4124 to rise accordingly, and further lifts the crimping tube 413 that has completed a single material taking to the material taking position, waiting for the crimping tube feeding unit 55 to grab and feed the material. At this time, the baffle completes the blocking of the outlet end of the crimping tube channel 411, and the crimping tube 413 in the crimping tube channel 411 will not fall off;

[0067] S5, control the two clamping parts to be in an open state, and at the same time control the multi-axis manipulator 52 and the rotating arm 53 to work accordingly, so that the two clamping parts move to the two sides of the crimping tube 413 on the material taking block 4124, and then control the two clamping parts to close, and complete the clamping of the crimping tube 413;

[0068] S6, control the multi-axis manipulator 52 and the rotating arm 53 to work accordingly, and send the crimping tube 413 from the material taking position to the loading station. After the material is loaded in place, release the two clamping parts to complete the loading of the crimping tube 413 at the loading station;

[0069] S7, repeating steps S3 to S6 in sequence to complete the continuous automatic loading of multiple crimping tubes 413.

[0070] The automatic circulation feeding system for crimping tubes suitable for contact network hanging string processing in the present invention has a simple structure and is easy to operate. It adopts a crimping tube vibration plate to vibrate and convey a large number of crimping tubes stored therein, adopts a tangentially contracted crimping tube channel to linearly arrange the crimping tubes in a single row, and the crimping tubes discharged from the end of the crimping tube channel are supported and limited one by one by a crimping tube picking tool, thereby creating favorable conditions for grasping the crimping tube feeding unit; at the same time, by setting a multi-axis manipulator and a rotating arm with multiple degrees of freedom and utilizing the corresponding setting of the crimping tube feeding unit at the end of the rotating arm, accurate clamping of the crimping tube at the picking station and corresponding transfer of the crimping tube to the loading station are accurately realized, thereby realizing continuous automation of crimping tube caching, picking and loading, without the need for manual operation, reducing labor intensity, improving production efficiency, enhancing product quality and stability of batch operations, reducing the cost of hanging string processing, and having good application prospects and promotion value.

[0071] It will be easily understood by those skilled in the art that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic circulation feeding system for crimping tubes suitable for processing overhead wire hanging strings, characterized in that: It includes a compression tube feeding buffer component and a compression tube automatic feeding component; The compression tube feeding buffer assembly includes a compression tube vibration plate, a compression tube channel and a compression tube material removal tool; the compression tube vibration plate has a cavity structure of a certain depth for accommodating the compression tube and transmitting the compression tube vibration to the compression tube channel; the inlet end of the compression tube channel is connected to the outer periphery of the compression tube vibration plate and extends along the tangential direction of the compression tube vibration plate, and the outlet end of the compression tube channel is connected to the compression tube material removal tool; and The crimping tube material taking tooling comprises a taking block with a receiving groove, which is arranged correspondingly at the outlet end of the crimping tube channel and can be lifted and lowered vertically; the receiving groove is arranged on a side of the taking block opposite to the outlet end of the crimping tube channel, and a single crimping tube can enter the receiving groove from the outlet end of the crimping tube channel and rise to the taking position of the crimping tube along with the taking block; and a baffle is arranged on the end face of the taking block on which the receiving groove is arranged, the baffle is fixed on the end face of the taking block, the top of the baffle is fixed below the receiving groove, and the outlet of the crimping tube channel can be blocked when the taking block rises to the loading position; Two feeding plates are arranged side by side on the top of the feeding block, and feeding grooves are respectively provided on the two feeding plates. The two feeding grooves are horizontally coaxial, and the length of the receiving groove in the direction of the crimping tube channel is not less than the width of the crimping tube; The automatic crimping tube feeding assembly includes a multi-axis manipulator and a crimping tube feeding unit; one end of the multi-axis manipulator is installed on the working platform, and the other end is matched with the crimping tube feeding unit to realize the reciprocating movement of the crimping tube feeding unit between the crimping tube picking position and the crimping tube loading position; the crimping tube feeding unit includes two clamping parts arranged opposite to each other; one end of the clamping part is the clamping end, and the other end is the driving end; arc-shaped grooves are respectively provided on the opposite end surfaces of the two clamping ends, so that the crimping tube can be respectively embedded in the corresponding arc-shaped grooves with its two sides when being clamped; and a driving mechanism is provided at the corresponding two driving ends to drive the two clamping ends to approach or move away synchronously, thereby realizing the closing or opening of the crimping tube feeding unit.

2. The automatic circulating feeding system for crimping tubes suitable for processing overhead wire hanging strings according to claim 1, wherein: The compression-tubed brake plate comprises a vibration plate surrounding plate and a vibration plate bottom plate; the vibration plate surrounding plate is circumferentially wrapped around the outer periphery of the vibration plate bottom plate; the vibration plate bottom plate is a vibration actuating mechanism.

3. The automatic circulating feeding system for crimping tubes suitable for processing overhead wire hanging strings according to claim 2, wherein: The vibration plate bottom plate is also a rotatable mechanism and / or a liftable mechanism, and the inlet end of the crimping tube channel is arranged on the upper part of the crimping tube vibration plate.

4. The automatic circulation feeding system for crimping tubes suitable for processing overhead wire hanging strings according to any one of claims 1 to 3, wherein: A rotating arm is also provided between the crimping tube feeding unit and the multi-axis manipulator; the rotating arm can rotate around an axis, and a plurality of mounting positions are distributed at an angle on a side away from the multi-axis manipulator, which can be used for the simultaneous installation of a plurality of crimping tube feeding units.

5. The automatic circulation feeding system for crimping tubes suitable for processing overhead wire hanging strings according to any one of claims 1 to 3, wherein: The height of the inlet end of the crimping tube channel is higher than the height of the outlet end thereof, so that the crimping tube can move from the inlet end to the outlet end under the action of gravity.

6. The automatic circulation feeding system for crimping tubes suitable for processing overhead wire hanging strings according to any one of claims 1 to 3, wherein: The compression tube channel comprises a pair of channel side plates arranged opposite to each other and a channel bottom plate arranged between the two channel side plates; the channel bottom plate is arranged at a height lower than the top of the channel side plates.

7. The automatic circulation feeding system for crimping tubes suitable for processing overhead wire hanging strings according to any one of claims 1 to 3, wherein: The crimp tube material removal tooling also includes a lifting block, a lifting mechanism and a mounting plate; The material taking block is arranged on the lifting block, and the lifting block corresponds to and matches the output end of the lifting mechanism; the mounting plate is fixedly connected to the lifting mechanism and is used for the installation of the crimping tube material taking tooling.

8. The automatic circulating feeding system for crimping tubes suitable for processing overhead wire hanging strings according to claim 6, wherein: The width of the inlet end of the crimp tube channel is greater than the width of the outlet end thereof.

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