Pairing device

Abstract

The present invention provides an assembling device, which includes a first guide rail extending along a first direction, a pair of frames, a pair of brackets, a multi-functional frame and a driving mechanism. Each of the frames includes a frame body and an end tube plate fixing portion. Each of the brackets includes a bracket body and a first tube body supporting portion. The multi-functional frame includes a multi-functional frame body, a second tube body supporting portion and an intermediate tube plate fixing portion. The second tube body supporting portion and the intermediate tube plate fixing portion are detachably and alternately assembled and connected to the multi-functional frame body. Compared with the prior art, the assembling device of the present invention can realize the assembly of two tube bodies, an intermediate tube plate and two end tube plates through the cooperation of a pair of frames, a pair of brackets and the multi-functional frame, increasing the diversity of its functions, simplifying the structure of the assembling device, saving materials and production costs, and improving the concentricity, automation degree and assembly efficiency of the assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe fitting assembly, and particularly to an assembling device for assembling two pipe bodies, an intermediate pipe plate and two end pipe plates. Background Art

[0002] In the manufacturing process of a screw machine, the pipe body and the pipe plate need to be assembled before being welded and fixed to ensure the concentric positioning between the pipe body and the pipe plate. At present, manual assembly is mainly used in the industry, and marks are made at the corresponding positions of the pipe body and the pipe plate for marking. However, due to visual deviation and subjective problems during manual marking, the concentricity of manual assembly is low, resulting in a low product qualification rate. Moreover, the efficiency of manual assembly is low, which greatly affects the production efficiency. Summary of the Invention

[0003] To solve the above technical problems, the purpose of the present invention is to provide an assembling device to solve the problems of low concentricity and poor efficiency in manual assembly.

[0004] To achieve one of the above invention purposes, the present invention provides an assembling device for assembling two pipe bodies, an intermediate pipe plate and two end pipe plates, including a first guide rail extending along a first direction, a pair of frames oppositely arranged along the first direction, a pair of brackets arranged between the pair of frames, a multi-functional frame arranged between the pair of brackets, and a driving mechanism. The pair of frames correspond to the two end pipe plates one by one. Each frame includes a frame body and an end pipe plate fixing part for supporting and fixing the corresponding end pipe plate. The pair of brackets correspond to the two pipe bodies one by one. Each bracket includes a bracket body and a first pipe body supporting part for supporting the corresponding pipe body. The multi-functional frame includes a multi-functional frame body, a second pipe body supporting part for supporting at least one of the two pipe bodies, and an intermediate pipe plate fixing part for supporting and fixing the intermediate pipe plate. The second pipe body supporting part and the intermediate pipe plate fixing part are detachably and alternately assembled and connected to the multi-functional frame body.

[0005] As a further improvement of an embodiment of the present invention, the first pipe body supporting part is movably assembled on the bracket body and reciprocates relative to the bracket body along a second direction perpendicular to the first direction under the drive of the driving mechanism;

[0006] The pair - assembling device further includes two transfer racks and a second guide rail parallel to the first guide rail. The two transfer racks are respectively arranged between a pair of the bracket bodies and the first guide rail. Each transfer rack has a first end slidably connected to the first guide rail and a second end slidably connected to the second guide rail. The two transfer racks can reciprocate along the first guide rail and the second guide rail, and drive the corresponding bracket body to reciprocate along the first direction.

[0007] Each transfer rack is provided with a third guide rail extending along a third direction. Each bracket body is slidably connected to the corresponding transfer rack and reciprocates along the third guide rail. Wherein, the third direction is perpendicular to the first direction and the second direction.

[0008] As a further improvement of an embodiment of the present invention, when the second tube body support part is assembled and connected to the multi - functional frame body, the second tube body support part reciprocates relative to the multi - functional frame body along a second direction perpendicular to the first direction under the drive of the drive mechanism; when the intermediate tube plate fixing part is assembled and connected to the multi - functional frame body, the intermediate tube plate fixing part reciprocates relative to the multi - functional frame body along the second direction under the drive of the drive mechanism.

[0009] As a further improvement of an embodiment of the present invention, the intermediate tube plate fixing part includes a fixing plate arranged perpendicular to the first direction and a bracket for supporting the intermediate tube plate. The bracket defines that the length direction of the intermediate tube plate is consistent with the first direction, and the bracket and the fixing plate are spaced apart along the first direction.

[0010] As a further improvement of an embodiment of the present invention, the intermediate tube plate fixing part further includes a first electromagnet for sucking and tightening the intermediate tube plate and a first switch for controlling the energization or de - energization of the first electromagnet. The first electromagnet is embedded at one end of the fixing plate close to the bracket.

[0011] As a further improvement of an embodiment of the present invention, both the first tube body support part and the second tube body support part include a motor and a rotating member that defines the length direction of the corresponding tube body to be consistent with the first direction. The motor is connected to the rotating member and drives the rotating member to drive the corresponding tube body to rotate around the first direction.

[0012] As a further improvement of an embodiment of the present invention, the rotating member is a pair of rollers spaced apart along a third direction perpendicular to the first direction. The rollers have an axis along the first direction. The motor is respectively connected to the pair of rollers and drives the pair of rollers to rotate around the axis respectively. The tube body support part further includes a locking member for restricting the rotation of the rollers.

[0013] As a further improvement of an embodiment of the present invention, the end tube plate fixing portion includes a vertical plate disposed perpendicular to the first direction, a positioning pin for positioning the end tube plate, a second electromagnet for sucking and fixing the corresponding end tube plate, and a second switch for controlling the energization or de - energization of the second electromagnet. The vertical plate is fixedly assembled on one side of the frame body close to the bracket. The vertical plate is provided with a through - hole, the positioning pin passes through the through - hole and is inserted into the end tube plate. The vertical plate has an inner surface facing the bracket, and the electromagnet is embedded in the vertical plate and is flush with the inner surface of the vertical plate.

[0014] As a further improvement of an embodiment of the present invention, the pairing device further includes a rangefinder. The rangefinder includes a transmitting end and a receiving end. The transmitting end is disposed on one of a pair of the frames, and the receiving end is disposed on the other of a pair of the frames.

[0015] As a further improvement of an embodiment of the present invention, the pairing device further includes a controller. The controller is connected to the driving mechanism and the driving mechanism, and is configured to: obtain the distance information detected by the rangefinder, and control the driving mechanism to drive the pair of frames to reciprocate along the first guide rail according to the distance information detected by the rangefinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The pairing device of the present invention can realize the pairing of two pipe bodies, an intermediate tube plate and two end tube plates through the cooperation of a pair of frames, a pair of brackets and a multi - functional frame. By alternately and detachably assembling and connecting the second pipe body support portion and the intermediate tube plate fixing portion to the multi - functional frame body, the diversity of its functions is increased, the structure of the pairing device is simplified, materials and production costs are saved, and the concentricity, automation degree and pairing efficiency of pairing are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a perspective structural view of the pairing device for a pipe body and two end tube plates according to Embodiment 1 of the present invention;

[0018] Figure 2 is Figure 1 an enlarged schematic view of part A in FIG. 1;

[0019] Figure 3 is Figure 1 an enlarged schematic view of part B in FIG. 1;

[0020] Figure 4 FIG. 2 is a perspective structural view of the pairing device according to Embodiment 2 of the present invention, showing the state where the second pipe body support portion is assembled and connected to the multi - functional frame body in the figure;

[0021] Figure 5Schematic three-dimensional structure diagram of the pairing device according to Embodiment 2 of the present invention, showing the state where the intermediate tube sheet fixing part is assembled and connected to the multi-functional frame;

[0022] Figure 6 is Figure 4 Enlarged schematic view of part C in;

[0023] Figure 7 is Figure 4 Enlarged schematic view of part D in. Specific embodiments

[0024] The present invention will be described in detail below with reference to the specific embodiments shown in the drawings.

[0025] In the various drawings of the present invention, for the convenience of illustration, the dimensions of some structures or parts are enlarged relative to other structures or parts. Therefore, it is only used to illustrate the basic structure of the subject matter of the present invention.

[0026] It should be understood that although terms such as first and second can be used herein to describe various elements or structures, the objects described should not be limited by these terms. These terms are only used to distinguish these described objects from each other.

[0027] Embodiment 1

[0028] Referring to Figure 1 , a pairing device 100 for a tube body and two end tube sheets provided by an embodiment of the present invention is used to pair the tube body and the two end tube sheets located at both ends of the tube body. The pairing device 100 for a tube body and two end tube sheets includes a horizontally placed base 11 and a first guide rail 111 provided on the base 11.

[0029] For the convenience of description, the extending direction of the first guide rail 111 is defined as the first direction. In this embodiment, the first direction extends horizontally. The direction perpendicular to the first direction and extending vertically is defined as the second direction, and the direction perpendicular to both the first direction and the second direction is defined as the third direction. Then, in this embodiment, the third direction also extends horizontally.

[0030] The pairing device 100 for a tube body and two end tube sheets further includes a pair of racks 12a and 12b oppositely arranged along the first direction, a bracket 13 provided between the pair of racks 12a and 12b, and a driving mechanism. The driving mechanism is respectively connected to the pair of racks 12a and 12b and controls the pair of racks 12a and 12b to reciprocate along the first guide rail 111. The racks 12a and 12b correspond to the two end tube sheets one by one.

[0031] Referring to Figures 1 to 2, specifically, in this embodiment, the frame 12a corresponds to one of the two end tube sheets. The frame 12a includes a frame body 121a and an end tube sheet fixing portion 122a for supporting and fixing one of the two end tube sheets; the frame 12b corresponds to the other of the two end tube sheets. The frame 12b includes a frame body 121b and an end tube sheet fixing portion 122b for supporting and fixing the other of the two end tube sheets.

[0032] The bracket 13 includes a bracket body 131 and a tube body supporting portion 132 for supporting the tube body. The tube body supporting portion 132 is connected above the bracket body 131.

[0033] Among them, at least two of the pair of frame bodies 121a and 121b and the bracket body 131 are movably connected to the first guide rail 111 and reciprocate along the first guide rail 111, so that the tube body has the freedom to move relative to the two end tube sheets along the first direction, so as to avoid interference or damage between the end tube sheets, the tube body, the frame bodies 121a and 121b, and the bracket body 131 when supporting and fixing the end tube sheets or placing the tube body.

[0034] See Figure 1 , in this embodiment, the pair of frame bodies 121a and 121b and the bracket body 131 are all movably connected to the first guide rail 111 and reciprocate along the first guide rail 111.

[0035] In other embodiments, only the pair of frame bodies 121a and 121b may be movably connected to the first guide rail 111 and reciprocate along the first guide rail 111, or only the frame body 121a and the bracket body 131 may be movably connected to the first guide rail 111 and reciprocate along the first guide rail 111, or only the frame body 121b and the bracket body 131 may be movably connected to the first guide rail 111 and reciprocate along the first guide rail 111. Compared with other embodiments, in this embodiment, any one of the frame bodies 121a and 121b and the bracket body 131 can be controlled to move, which is more flexible to use. Moreover, the shortest distance movement path can be selected according to the relative positions of the three to reach the assembly position, without being restricted by the one fixedly connected to the first guide rail 111 among the three, improving the working efficiency and flexibility of the tube body and two end tube sheet assembly device 100.

[0036] The end tube sheet fixing part 122a is movably assembled on the frame body 121a and reciprocates relative to the frame body 121a along the second direction under the drive of the driving mechanism. The end tube sheet fixing part 122b is movably assembled on the frame body 121b and reciprocates relative to the frame body 121b along the second direction under the drive of the driving mechanism, and / or the tube body supporting part 132 is movably assembled on the bracket body 131 and reciprocates relative to the bracket body 131 along the second direction under the drive of the driving mechanism, so that the tube body has the freedom of movement along the second direction relative to the two end tube sheets, and the alignment concentricity of the tube body and the two end tube sheets in the second direction of the alignment device 100 is improved.

[0037] Further, the bracket body 131, and / or the pair of frame bodies 121a and 121b reciprocate along the third direction, so that the tube body has the freedom of movement along the third direction relative to the two end tube sheets, and the alignment concentricity of the tube body and the two end tube sheets in the third direction of the alignment device 100 is improved.

[0038] Thus, the alignment device 100 of the tube body and the two end tube sheets can realize the concentric alignment of the tube body and the two end tube sheets, improve its concentricity and alignment accuracy, and greatly improve the automation degree and alignment efficiency of the alignment of the tube body and the two end tube sheets.

[0039] See Figure 1 , further, in this embodiment, the bracket body 131 can reciprocate along the third direction, while the positions of the pair of frame bodies 121a and 121b relative to the first guide rail 111 are fixed in the third direction.

[0040] In other embodiments, it is also possible to set the pair of frame bodies 121a and 121b to reciprocate along the third direction, while the position of the bracket body 131 relative to the first guide rail 111 is fixed in the third direction, or the bracket body 131, the pair of frame bodies 121a and 121b all reciprocate along the third direction. Compared with other embodiments, in this embodiment, only the position of the bracket body 131 relative to the first guide rail 111 in the third direction needs to be adjusted, without adjusting the positions of the pair of frame bodies 121a and 121b in the third direction, and the concentricity of the tube body and the two end tube sheets in the third direction can be realized, simplifying the operation process and improving the work efficiency.

[0041] See Figure 1, specifically, in this embodiment, the pipe body and the two end tube sheets assembling device 100 further includes a transfer rack 14 and a second guide rail 15 parallel to the first guide rail 111. The transfer rack 14 is disposed between the bracket body 131 and the first guide rail 111. One end of the transfer rack 14 is slidably connected to the first guide rail 111, and the other end of the transfer rack 14 is slidably connected to the second guide rail 15. The transfer rack 14 reciprocates along the first guide rail 111 and the second guide rail 15, and drives the bracket body 131 to reciprocate along the first direction. The transfer rack 14 is provided with a third guide rail 141 extending along the third direction. The bracket body 131 is slidably connected to the transfer rack 14 and reciprocates along the third guide rail 141.

[0042] On the one hand, the bracket body 131 drives the pipe body to reciprocate along the third guide rail 141, realizing the degree of freedom of movement of the pipe body along the third direction, so as to adjust the concentricity of the pipe body and the two end tube sheets in the third direction, improving the accuracy and working efficiency; on the other hand, after the assembly is completed, the assembled workpiece can be moved out of the first guide rail 111 by the transfer rack 14, so as to remove it from the pipe body and the two end tube sheets assembling device 100.

[0043] In this embodiment, when the bracket body 131 drives the pipe body to move along the third guide rail 141 to the end where the transfer rack 14 is connected to the first guide rail 111, the central axes of the pipe body support part 132 and the two end tube sheet fixing parts 122a and 122b along the second direction are coplanar. In this way, as long as the bracket body 131 is controlled to move to the end where the transfer rack 14 is connected to the first guide rail 111, the central axes of the pipe body and the two end tube sheets along the second direction can be made coplanar, avoiding adjusting the position of the bracket body 131 on the third guide rail back and forth to ensure the concentricity of the pipe body and the two end tube sheets in the third direction, and simplifying the operation process.

[0044] In other embodiments, the driving mechanism can also be controlled to drive the bracket body 131 to move to the position where the central axes of the pipe body support part 132 and the two end tube sheet fixing parts 122a and b along the second direction are coplanar, further improving the automation degree of the pipe body and the two end tube sheets assembling device 100.

[0045] Further, in this embodiment, the end tube sheet fixing portion 122a is fixedly assembled to the frame body 121a, the end tube sheet fixing portion 122b is fixedly assembled to the frame body 121b, and the tube body supporting portion 132 is movably assembled to the bracket body 131 and reciprocates relative to the bracket body 131 along the second direction under the drive of the driving mechanism. That is, the tube body supporting portion 132 moves up and down relative to the bracket body 131 under the drive of the driving mechanism. After the tube body is hoisted and placed on the tube body supporting portion 132, according to the dimensional information of the tube body and the two end tube sheets, the driving mechanism is controlled to drive the tube body supporting portion 132 to move up and down relative to the bracket body 131, so that the tube body and the two end tube sheets are concentrically paired in the second direction.

[0046] In other embodiments, the end tube sheet fixing portion 122a may also be movably assembled to the frame body 121a and reciprocate relative to the frame body 121a along the second direction under the drive of the driving mechanism, the end tube sheet fixing portion 122b may be movably assembled to the frame body 121b and reciprocate relative to the frame body 121b along the second direction under the drive of the driving mechanism, and the tube body supporting portion 132 is fixedly assembled to the bracket body 131. In a variant embodiment, the end tube sheet fixing portion 122a may also be movably assembled to the frame body 121a and reciprocate relative to the frame body 121a along the second direction under the drive of the driving mechanism, the end tube sheet fixing portion 122b may be movably assembled to the frame body 121b and reciprocate relative to the frame body 121b along the second direction under the drive of the driving mechanism, and the tube body supporting portion 132 is movably assembled to the bracket body 131 and reciprocates relative to the bracket body 131 along the second direction under the drive of the driving mechanism. Compared with other embodiments and variant embodiments, in this embodiment, only the position of the tube body supporting portion 132 relative to the bracket body 131 in the second direction needs to be adjusted, that is, the height of the tube body supporting portion 132 in the vertical direction, without adjusting the height of a pair of end tube sheet fixing portions 122a and 122b in the vertical direction, so as to achieve the concentricity of the tube body and the two end tube sheets in the vertical direction, simplify the operation process, and improve the work efficiency.

[0047] For the pairing device 100 of the tube body and the two end tube sheets in this embodiment, by setting the positions of the two end tube sheets fixed relative to the first guide rail 111 in the second direction and the third direction, only the positions of the tube body in the second direction and the third direction need to be adjusted, so as to achieve the concentricity of the tube body and the two end tube sheets in the second direction and the third direction, simplify the operation process, and improve the work efficiency.

[0048] See Figures 1 to 2, Further, both the end tube sheet fixing parts 122a and 122b include vertical plates 1221 arranged perpendicular to the first direction and positioning pins 1222 for positioning the end tube sheets. The vertical plates 1221 are fixedly assembled on the sides of the frame bodies 121a and 121b close to the bracket 13 to limit the relative positions of the two end tube sheets along the first direction, thereby facilitating their alignment with the tube body. The vertical plates 1221 are provided with through holes 12211, and the end tube sheets also have positioning holes for the positioning pins 1222 to be inserted therein. At least two groups of the through holes 12211 and the positioning holes are arranged in one-to-one correspondence. The positioning pins 1222 pass through the through holes 12211 and are inserted into the positioning holes of the end tube sheets to hoist the end tube sheets on the vertical plates 1221 and prevent them from rotating in the plane perpendicular to the first direction. The positioning pins 1222 are detachably connected to the vertical plates 1221. During alignment, first hoist the end tube sheets until the positioning holes are aligned with the through holes 12211, and then sequentially pass the positioning pins 1222 through the through holes 12211 from the side of the vertical plates 1221 away from the bracket body 131 and insert them into the positioning holes, so that the end tube sheets can be assembled on the vertical plates 1221. After the alignment is completed, remove the positioning pins 1222 from the side of the vertical plates 1221 away from the bracket body 131 or pull out the positioning pins 1222 until they are disengaged from the positioning holes, and then move the frames 12a and 12b away from the bracket 13 along the first direction, so that the assembled workpiece can be smoothly removed, thus avoiding interference or damage.

[0049] See Figures 1 to 2 , Further, the end tube sheet fixing parts 122a and 122b further include electromagnets 1223 for sucking and tightening the end tube sheets and switches for controlling the energization or de-energization of the electromagnets 1223. During alignment, after the positioning pins 1222 assemble the end tube sheets on the vertical plates 1221, turn on the switch to control the electromagnets 1223 to be energized to suck and tighten the end tube sheets and prevent them from falling off the vertical plates 1221. After the alignment is completed, turn off the switch to control the electromagnets 1223 to be de-energized, and then pull out the positioning pins 1222, so that the assembled workpiece can be smoothly removed.

[0050] The vertical plates 1221 have inner surfaces 12212 facing the bracket 13. The electromagnets 1223 are embedded in the vertical plates 1221 and flush with the inner surfaces 12212 of the vertical plates 1221, so that the end tube sheets are abutted against the inner surfaces 12212 of the vertical plates 1221, increasing the assembly firmness between the end tube sheets and the vertical plates 1221 during alignment and avoiding damage to the end tube sheets.

[0051] Further, the tube body supporting part 132 includes a motor and a rotating member that defines the length direction of the tube body to be consistent with the first direction. The motor is connected to the rotating member and drives the rotating member to drive the tube body to rotate around the first direction, so that the tube body rotates to the pairing position for alignment with the two end tube sheets.

[0052] See Figure 1 and Figure 3 Specifically, in this embodiment, the rotating member is a pair of rollers 1321 arranged at intervals along the third direction. In this way, when the pipe body is placed on the pair of rollers 1321, the pair of rollers 1321 simultaneously apply a supporting force to the pipe body, which not only defines that the length direction of the pipe body is consistent with the first direction, but also prevents the pipe body from rolling off the rollers 1321. The rollers 1321 have an axis along the first direction, and the motor is respectively connected to the pair of rollers 1321 and drives the pair of rollers 1321 to rotate around the axis respectively, so as to drive the pipe body to rotate around the first direction, so that the pipe body rotates to the pairing position for butt welding with the two end tube sheets.

[0053] See Figure 1 and Figure 3 Further, the pipe body support portion 132 further includes a locking member 1322 for restricting the rotation of the rollers 1321. When the pipe body rotates to the pairing position for butt welding with the two end tube sheets, the locking member 1322 locks the rollers 1321 to prevent the rollers 1321 from continuing to rotate and driving the pipe body to rotate and deviate from the pairing position for butt welding with the two end tube sheets.

[0054] See Figure 1 Further, at least two brackets 13 are provided. The at least two brackets 13 are arranged at intervals between a pair of frames 12a and 12b to provide more stable support for the pipe body, prevent the pipe body from shifting or even falling, and further affect the concentric butt welding of the pipe body with the two end tube sheets. In this embodiment, two brackets 13 are provided, and the two brackets 13 jointly support the pipe body to share the pressure borne by each bracket 13; in other embodiments, three or more brackets 13 can also be provided according to the length or weight of the pipe body to share the pressure borne by each bracket 13.

[0055] Further, the butt welding device 100 for the pipe body and the two end tube sheets further includes a rangefinder. The rangefinder includes a transmitting end and a receiving end. The transmitting end is arranged on one of the pair of frames 12a and 12b, and the receiving end is arranged on the other of the pair of frames 12a and 12b. That is to say, when the transmitting end is arranged on the frame 12a, the receiving end is arranged on the frame 12b; when the transmitting end is arranged on the frame 12b, the receiving end is arranged on the frame 12a.

[0056] In this embodiment, the transmitting end is disposed on the surface of the vertical plate 1221 close to the bracket 13, and the end tube plates are abutted against the surface of the vertical plate 1221 close to the bracket 13. The distance between the two end tube plates can be detected by the rangefinder, so as to control the distance that a pair of frames 12a and 12b move along the first direction, so that the tube body and the two end tube plates move until the tube body abuts against the two end tube plates, avoiding gaps or mutual extrusion between the tube body and the two end tube plates, which may cause defective products.

[0057] Further, in this embodiment, the assembling device 100 for the tube body and the two end tube plates further includes a controller, which is connected to the driving mechanism, the rangefinder, the switch and the motor. The controller is configured to:

[0058] According to the distance information detected by the rangefinder, control the driving mechanism to drive a pair of frames 12a and 12b to reciprocate along the first guide rail 111;

[0059] Control the switch to be turned on to control the electromagnet 1223 to be energized or control the switch to be turned off to control the electromagnet 1223 to be de-energized;

[0060] Control the motor to operate to control a pair of rollers 1321 to rotate around the axis;

[0061] According to the dimensional information of the tube body and the end tube plates, control the driving mechanism to drive the tube body support portion 132 of the bracket 13 to rise or fall along the second direction.

[0062] Compared with the prior art, the pipe body and the end pipe plate pairing device 100 provided by the present invention has the beneficial effects that at least two of a pair of frame bodies 121a and 121b and the bracket body 131 are movably connected to the first guide rail 111 and reciprocate along the first guide rail 111, so that the pipe body has the freedom to move relative to the two end pipe plates along the first direction; the bracket body 131, and / or, a pair of frame bodies 121a and 121b reciprocate along the second direction, so that the pipe body has the freedom to move relative to the two end pipe plates along the second direction, improving the pairing concentricity of the pipe body and the end pipe plate pairing device 100 in the second direction; the end pipe plate fixing parts 122a / 122b are movably assembled on the frame bodies 121a / 121b and reciprocate relative to the frame bodies 121a / 121b along the third direction under the drive of the drive mechanism, and / or, the pipe body support part 132 is movably assembled on the bracket body 131 and reciprocates relative to the bracket body 131 along the third direction under the drive of the drive mechanism, so that the pipe body has the freedom to move relative to the two end pipe plates along the third direction; through the three-direction freedom of the pipe body relative to the two end pipe plates, the concentric pairing of the pipe body and the two end pipe plates can be realized, improving its concentricity and pairing accuracy, and greatly improving the automation degree and pairing efficiency of the pairing of the pipe body and the two end pipe plates; after the pairing is completed, the paired workpiece can be moved out away from the first guide rail 111 through the transfer rack 14, so as to remove it from the pipe body and the end pipe plate pairing device 100; the end pipe plates can be fixed on the frames 12a and 12b through the positioning pins 1222 and the electromagnets 1223; the motor is connected to the rotating member and drives the rotating member to drive the pipe body to rotate around the first direction, so that the pipe body can be rotated to the pairing position for pairing with the two end pipe plates; the rotating member is provided with a pair of rollers 1321 which not only defines the length direction of the pipe body to be consistent with the first direction, but also prevents the pipe body from rolling off the rollers 1321; the locking member 1322 locks the rollers 1321 to limit the pipe body from deviating from the pairing position for pairing with the two end pipe plates; the distance measuring instrument can detect the distance between the two end pipe plates to prevent gaps or mutual extrusion between the pipe body and the two end pipe plates, resulting in defective products.

[0063] Embodiment 2

[0064] See Figures 4 to 5 , the pairing device 200 provided by an embodiment of the present invention is used for pairing two pipe bodies, an intermediate pipe plate and two end pipe plates, and their arrangement order is: one of the end pipe plates, one of the pipe bodies, the intermediate pipe plate, the other pipe body, and the other end pipe plate.

[0065] The pairing device 200 includes a horizontally placed base 21 and a first guide rail 211 provided on the base 21.

[0066] For ease of description, the extending direction of the first guide rail 211 is defined as the first direction. In this embodiment, the first direction extends along the horizontal direction. The direction perpendicular to the first direction and extending along the vertical direction is defined as the second direction, and the direction perpendicular to both the first direction and the second direction is defined as the third direction. Then, in this embodiment, the third direction also extends horizontally.

[0067] The pairing device 200 further includes a pair of racks 22a and 22b oppositely arranged along the first direction, a pair of brackets 23a and 23b disposed between the pair of racks 22a and 22b, a multi-functional rack 26 disposed between the pair of brackets 23a and 23b, and a driving mechanism. The driving mechanism is respectively connected to the pair of racks 22a and 22b and controls the pair of racks 22a and 22b to reciprocate along the first guide rail 211. The pair of racks 22a and 22b respectively correspond to the two end tube sheets.

[0068] See Figures 4 to 5 , specifically, in this embodiment, the rack 22a corresponds to one of the two end tube sheets. The rack 22a includes a rack body 221a and an end tube sheet fixing portion 222a for supporting and fixing one of the two end tube sheets; the rack 22b corresponds to the other of the two end tube sheets. The rack 22b includes a rack body 221b and an end tube sheet fixing portion 222b for supporting and fixing the other of the two end tube sheets.

[0069] See Figures 4 to 5 , the pair of brackets 23a and 23b respectively correspond to the two tubes. Specifically, in this embodiment, the bracket 23a includes a bracket body 231a and a first tube supporting portion 232a for supporting one of the two tubes. The first tube supporting portion 232a is connected above the bracket body 231a; the bracket 23b includes a bracket body 231b and a first tube supporting portion 232b for supporting the other of the tubes. The first tube supporting portion 232b is connected above the bracket body 231b.

[0070] See Figures 4 to 5 , the multi-functional rack 26 includes a multi-functional rack body 261, a second tube supporting portion 262 for supporting at least one of the two tubes, and an intermediate tube sheet fixing portion 263 for supporting and fixing the intermediate tube sheet. The second tube supporting portion 262 and the intermediate tube sheet fixing portion 263 are detachably and alternately assembled and connected to the multi-functional rack body 261 to achieve functional diversity, simplify the structure of the pairing device 200, and save materials and production costs.

[0071] When assembling and pairing one of the two pipe bodies with one of the two end tube plates, the second pipe body support portion 262 is assembled and connected to the multi-functional frame body 261. The bracket 23a and the multi-functional frame 26 jointly support one of the two pipe bodies, and cooperate with the frame 22a to move, so as to pair one of the two pipe bodies with one of the two end tube plates. When assembling and pairing the other of the two pipe bodies with the other of the two end tube plates, the second pipe body support portion 262 is assembled and connected to the multi-functional frame body 261. The bracket 23b and the multi-functional frame 26 jointly support the other of the two pipe bodies, and cooperate with the frame 22b to move, so as to pair the other of the two pipe bodies with the other of the two end tube plates. By jointly supporting one of the two pipe bodies by the bracket 23a and the multi-functional frame 26, the stability of the support for one of the two pipe bodies is improved; by jointly supporting the other of the two pipe bodies by the bracket 23b and the multi-functional frame 26, the stability of the support for the other of the two pipe bodies is improved.

[0072] When assembling and pairing the two pipe bodies with the intermediate tube plate, the intermediate tube plate fixing portion 263 is assembled and connected to the multi-functional frame body 261. The multi-functional frame 26 supports the intermediate tube plate, and cooperates with the bracket 23a and the bracket 23b to move, so as to pair the two pipe bodies with the intermediate tube plate.

[0073] Among them, at least four of the pair of frame bodies 221a and 221b, the pair of bracket bodies 231a and 231b, and the multi-functional frame 26 are movably connected to the first guide rail 211 and reciprocate along the first guide rail 211, so that the two pipe bodies and the intermediate tube plate have the freedom of movement relative to the two end tube plates along the first direction, so as to avoid interference or damage between the two end tube plates, the two pipe bodies, the intermediate tube plate, the frames 22a and b, the brackets 23a and b, and the multi-functional frame 26 when supporting and fixing the end tube plates, or placing the pipe bodies, or supporting and fixing the intermediate tube plate.

[0074] See Figures 4 to 5, in this embodiment, a pair of frame bodies 221a and 221b, a pair of bracket bodies 231a and 231b, and the multi-functional frame body 261 are all movably connected to the first guide rail 211 and reciprocate along the first guide rail 211. In other embodiments, only any four of the pair of frame bodies 221a and 221b, the pair of bracket bodies 231a and 231b, and the multi-functional frame body 261 may be movably connected to the first guide rail 211 and reciprocate along the first guide rail 211. Compared with other embodiments, in this embodiment, any one of the pair of frame bodies 221a and 221b, the pair of bracket bodies 231a and 231b, and the multi-functional frame body 261 can be controlled to move as needed, which is more flexible to use. Moreover, the shortest distance of the movement path can be selected according to the relative positions of the five to reach the pairing position, without being restricted by the one fixedly connected to the first guide rail 211 among the five, improving the working efficiency and flexibility of the pairing device 200.

[0075] In this embodiment, the end tube sheet fixing part 222a is fixedly assembled on the frame body 221a, and the end tube sheet fixing part 222b is fixedly assembled on the frame body 221b; in other embodiments, the end tube sheet fixing part 222a can also be movably assembled on the frame body 221a and reciprocate relative to the frame body 221a along the second direction under the drive of the drive mechanism, and / or the end tube sheet fixing part 222b is movably assembled on the frame body 221b and reciprocate relative to the frame body 221b along the second direction under the drive of the drive mechanism.

[0076] See Figure 4 and Figure 7 , further, in this embodiment, the first tube body support part 232a is movably assembled on the bracket body 231a and reciprocates relative to the bracket body 231a along the second direction under the drive of the drive mechanism, and the first tube body support part 232b is movably assembled on the bracket body 231b and reciprocates relative to the bracket body 231b along the second direction under the drive of the drive mechanism. That is, the first tube body support part 232a moves up and down relative to the bracket body 231a under the drive of the drive mechanism; the first tube body support part 232b moves up and down relative to the bracket body 231b under the drive of the drive mechanism, so that the two tube bodies have the freedom of movement along the second direction relative to the two end tube sheets, improving the concentricity of the pairing of the tube bodies and the end tube sheets in the second direction. After the two tube bodies are respectively hoisted and placed on the corresponding first tube body support parts 232a or 232b, according to the size information of the two tube bodies and the two end tube sheets, the drive mechanism drives the corresponding first tube body support part 232a or 232b to move up and down relative to the bracket body 231a or 231b, so that the two tube bodies and the two end tube sheets are concentrically paired in the second direction.

[0077] Further, in this embodiment, a pair of bracket bodies 231a and 231b can reciprocate along the third direction, while the positions of a pair of frame bodies 221a and 221b relative to the first guide rail 211 in the third direction are fixed.

[0078] In other embodiments, it is also possible to arrange a pair of frame bodies 221a and 221b to reciprocate along the third direction, while the positions of a pair of bracket bodies 231a and 231b relative to the first guide rail 211 in the third direction are fixed, or a pair of bracket bodies 231a and 231b and a pair of frame bodies 221a and 221b both reciprocate along the third direction. Compared with other embodiments, in this embodiment, only the positions of a pair of bracket bodies 231a and 231b relative to the first guide rail 211 in the third direction need to be adjusted, without adjusting the positions of a pair of frame bodies 221a and 221b in the third direction, so as to achieve the concentricity of the two pipe bodies and the two end tube sheets in the third direction, simplify the operation process, and improve the work efficiency.

[0079] See Figures 4 to 5 , specifically, in this embodiment, the assembling device 200 further includes two transfer racks 24a and 24b, and a second guide rail 25 parallel to the first guide rail 211. The transfer rack 24a is correspondingly arranged between the bracket body 231a and the first guide rail 211, and the transfer rack 24b is correspondingly arranged between the bracket body 231b and the first guide rail 211. One end of the transfer rack 24a is slidably connected to the first guide rail 211, and the other end of the transfer rack 24a is slidably connected to the second guide rail 25. One end of the transfer rack 24b is slidably connected to the first guide rail 211, and the other end of the transfer rack 24b is slidably connected to the second guide rail 25. The transfer rack 24a can reciprocate along the first guide rail 211 and the second guide rail 25, and drive the bracket body 231a to reciprocate along the first direction. The transfer rack 24b can reciprocate along the first guide rail 211 and the second guide rail 25, and drive the bracket body 231b to reciprocate along the first direction.

[0080] The transfer rack 24a is provided with a third guide rail 241a extending along the third direction. The bracket body 231a is slidably connected to the transfer rack 24a and reciprocates along the third guide rail 241. The transfer rack 24b is provided with a third guide rail 241b extending along the third direction. The bracket body 231b is slidably connected to the transfer rack 24b and reciprocates along the third guide rail 241b.

[0081] On the one hand, the bracket bodies 231a and 231b drive the two pipe bodies to reciprocate along the third guide rail 241 respectively, realizing the freedom degree of movement of the two pipe bodies in the third direction, so as to adjust the concentricity of the two pipe bodies and the two end pipe plates in the third direction, improving the accuracy and working efficiency. On the other hand, after the assembly is completed, the assembled workpieces can be moved out of the first guide rail 211 by the two transfer racks 24a and 24b, so as to remove them from the assembly equipment 200.

[0082] In this embodiment, when the bracket body 231a drives one of the two pipe bodies to move along the third guide rail 241 to the end where the transfer rack 24a is connected to the first guide rail 211, the central axis of the first pipe body support part 232a and the two end pipe plate fixing parts 222a and 222b in the second direction are coplanar. When the bracket body 231b drives the other of the two pipe bodies to move along the third guide rail 241b to the end where the transfer rack 24b is connected to the first guide rail 211, the central axis of the first pipe body support part 232b and the two end pipe plate fixing parts 222a and 222b in the second direction are coplanar. In this way, as long as the bracket body 231a is controlled to move to the end where the transfer rack 24a is connected to the first guide rail 211, one of the two pipe bodies can be made coplanar with the two end pipe plates along the central axis in the second direction. As long as the bracket body 231b is controlled to move to the end where the transfer rack 24b is connected to the first guide rail 211, the other of the two pipe bodies can be made coplanar with the two end pipe plates along the central axis in the second direction, avoiding adjusting the positions of the bracket body 231a or 232b on the third guide rail back and forth to ensure the concentricity of the two pipe bodies and the two end pipe plates in the third direction, and simplifying the operation process.

[0083] In other embodiments, the driving mechanism can also be controlled to drive the bracket body 231a to move to the position where the central axis of the first pipe body support part 232a and the two end pipe plate fixing parts 222a and 222b in the second direction are coplanar, and the driving mechanism can be controlled to drive the bracket body 231b to move to the position where the central axis of the first pipe body support part 232b and the two end pipe plate fixing parts 222a and 222b in the second direction are coplanar, further improving the automation degree of the assembly equipment 200.

[0084] Further, when the second tube body support part 262 is assembled and connected to the multi-functional frame body 261, the second tube body support part 262 reciprocates relative to the multi-functional frame body 261 along the second direction under the drive of the drive mechanism; when the intermediate tube plate fixing part 263 is assembled and connected to the multi-functional frame body 261, the intermediate tube plate fixing part 263 reciprocates relative to the multi-functional frame body 261 along the second direction under the drive of the drive mechanism. By adjusting the reciprocating movement of the second tube body support part 262 or the intermediate tube plate fixing part 263 relative to the multi-functional frame body 261 along the second direction, that is, the lifting movement, according to the dimensional information of the two tube bodies, the two end tube plates, and the intermediate tube plate, the drive mechanism can be controlled to drive the second tube body support part 262 or the intermediate tube plate fixing part 263 to lift relative to the multi-functional frame body 261, so that the two tube bodies or the intermediate tube plate are concentrically paired with the two end tube plates in the second direction.

[0085] See Figure 5 , further, the intermediate tube plate fixing part 263 includes a fixing plate 2631 arranged perpendicular to the first direction and a bracket 2632 for supporting the intermediate tube plate. The bracket 2632 defines that the length direction of the intermediate tube plate is consistent with the first direction, and the bracket 2632 and the fixing plate 2631 are arranged at intervals along the first direction. During pairing, the intermediate tube plate is placed on the bracket 2632, and one end of the intermediate tube plate is abutted against the fixing plate 2631 to prevent the intermediate tube plate from falling off the bracket 2632 or even being damaged.

[0086] In this embodiment, the bracket 2632 is set in an M shape. In other embodiments, the bracket 2632 can also be set in a V shape or other shapes, as long as the intermediate tube plate can be stably placed on the bracket 2632 without falling off.

[0087] See Figure 5 , further, the intermediate tube plate fixing part 263 further includes a first electromagnet 2633 for sucking and tightening the intermediate tube plate and a first switch for controlling the energization or de-energization of the first electromagnet 2633. The first electromagnet 2633 is embedded at one end of the fixing plate 2631 close to the bracket 2632. After the intermediate tube plate is placed on the bracket 2632, the first switch is turned on to control the first electromagnet 2633 to be energized to suck and tighten the intermediate tube plate to prevent it from falling off the bracket 2632; after the pairing of the intermediate tube plate is completed, the first switch is turned off to control the first electromagnet 2633 to be de-energized, and the paired workpiece can be smoothly removed.

[0088] Further, the first tube body support parts 232a and 232b and the second tube body support part 262 each include a motor and a rotating member that defines the length direction of the corresponding tube body to be consistent with the first direction. The motor is connected to the rotating member and drives the rotating member to drive the tube body to rotate about the first direction, so that the tube body rotates to a pairing position for alignment with the corresponding end tube plate or the intermediate tube plate group.

[0089] See Figures 4 to 5 and Figure 7 , specifically, in this embodiment, the rotating members of the first tube body support parts 232a, 232b and the second tube body support part 262 are a pair of rollers 2321 arranged at intervals along the third direction. In this way, when the tube body is placed on the pair of rollers 2321, the pair of rollers 2321 simultaneously apply a supporting force to the tube body, not only defining the length direction of the tube body to be consistent with the first direction, but also preventing the tube body from rolling off the rollers 2321. The rollers 2321 have an axis along the first direction, and the motor is respectively connected to the pair of rollers 2321 and drives the pair of rollers 2321 to rotate about the axis respectively, so as to drive the tube body to rotate about the first direction, so that the tube body rotates. The tube body support part includes a motor and a rotating member that defines the length direction of the tube body to be consistent with the first direction. The motor is connected to the rotating member and drives the rotating member to drive the tube body to rotate about the first direction, so that the tube body rotates to a pairing position for alignment with the corresponding end tube plate or the intermediate tube plate group.

[0090] See Figures 4 to 5 and Figure 7 , further, the first tube body support parts 232a, 232b and the second tube body support part 262 each include a locking member 2322 that restricts the rotation of the rollers 2321. When the tube body rotates to a pairing position for alignment with the corresponding end tube plate or the intermediate tube plate group, the locking member 2322 locks the rollers 2321 to prevent the rollers 2321 from continuing to rotate and driving the tube body to rotate away from the pairing position for alignment with the corresponding end tube plate or the intermediate tube plate group.

[0091] See Figures 4 to 6, Further, both the end tube sheet fixing parts 222a and 222b include vertical plates 2221 arranged perpendicular to the first direction and positioning pins 2222 for positioning the end tube sheets. The vertical plates 2221 are fixedly assembled on the sides of the frame bodies 221a and 221b close to the bracket 23 to limit the relative positions of the two end tube sheets in the first direction, thereby facilitating their alignment with the corresponding tube bodies. The vertical plates 2221 are provided with through holes 22211, and the end tube sheets also have positioning holes for the positioning pins 2222 to be inserted therein. At least two groups of through holes 22211 and the positioning holes are arranged in one-to-one correspondence. The positioning pins 2222 pass through the through holes 22211 and are inserted into the positioning holes of the end tube sheets to hoist the end tube sheets on the vertical plates 2221 and prevent them from rotating in the plane perpendicular to the first direction. The positioning pins 2222 are detachably connected to the vertical plates 2221. During alignment, first hoist the end tube sheets until the positioning holes are aligned with the through holes 22211, and then sequentially insert the positioning pins 2222 through the through holes 22211 from the side of the vertical plates 2221 away from the bracket body 231 and into the positioning holes, so that the end tube sheets can be assembled on the vertical plates 2221. After the alignment is completed, remove the positioning pins 2222 from the side of the vertical plates 2221 away from the bracket body 231 or pull out the positioning pins 2222 until they are disengaged from the positioning holes, and then move the frames 22a and 22b away from each other in the first direction, and the assembled workpieces can be smoothly removed, thus avoiding interference or damage.

[0092] See Figures 4 to 6 , Further, both the end tube sheet fixing parts 222a and 222b also include second electromagnets 2223 for sucking and tightening the end tube sheets and second switches for controlling the energization or de-energization of the electromagnets. During alignment, after the positioning pins 2222 assemble the end tube sheets on the vertical plates 2221, turn on the second switch to control the second electromagnets 2223 to be energized to suck and tighten the end tube sheets and prevent them from falling off the vertical plates 2221. After the alignment is completed, turn off the second switch to control the second electromagnets 2223 to be de-energized, and then pull out the positioning pins 2222, and the assembled workpieces can be smoothly removed.

[0093] The vertical plates 2221 have inner surfaces 22212 facing the bracket 23. The second electromagnets 2223 are embedded in the vertical plates 2221 and flush with the inner surfaces 22212 of the vertical plates 2221, so that the end tube sheets are in contact with the inner surfaces 22212 of the vertical plates 2221, increasing the assembly firmness between the end tube sheets and the vertical plates 2221 during alignment and avoiding damage to the end tube sheets.

[0094] Further, the pairing device 200 further includes a rangefinder, which includes a transmitting end and a receiving end. The transmitting end is disposed on one of a pair of racks 22a and 22b, and the receiving end is disposed on the other of the pair of racks 22a and 22b. That is, when the transmitting end is disposed on the rack 22a, the receiving end is disposed on the rack 22b; when the transmitting end is disposed on the rack 22b, the receiving end is disposed on the rack 22a.

[0095] In this embodiment, the transmitting end is disposed on a side surface of the vertical plate 2221 close to the bracket 23a, and the end tube plate abuts against the side surface of the vertical plate 2221 close to the bracket 23a. The distance between the two end tube plates is detected by the rangefinder, so as to control the distance that a pair of racks 22a and 22b move along the first direction, so that the two pipe bodies and the two end tube plates move to make the two pipe bodies abut against the corresponding end tube plates, avoiding gaps or mutual extrusion between the two pipe bodies and the corresponding end tube plates, which may cause defective products.

[0096] Further, in this embodiment, the pairing device 200 further includes a controller, which is connected to the driving mechanism, the rangefinder, the first switch, the second switch and the motor. The controller is configured to:

[0097] Control the driving mechanism to drive a pair of racks 22a and / or 22b to reciprocate along the first guide rail 211;

[0098] Control the first switch to be turned on to energize the first electromagnet 2633 or control the first switch to be turned off to de-energize the first electromagnet 2633, control the second switch to be turned on to energize the second electromagnet 2223 or control the second switch to be turned off to de-energize the second electromagnet 2223;

[0099] Control the motor to operate to control a pair of rollers 2321 to rotate around the axis;

[0100] According to the dimensional information of the pipe body, the end tube plate and the intermediate tube plate, control the driving mechanism to drive the first pipe body support portion 232a of the bracket 23a, the first pipe body support portion 232b of the bracket 23b, the second pipe body support portion 262 of the multifunctional frame 26 or the intermediate tube plate fixing portion 263 to rise or fall along the second direction;

[0101] Obtain the distance information detected by the rangefinder, and according to the distance information detected by the rangefinder, control the driving mechanism to drive a pair of racks 22a and / or 22b to reciprocate along the first guide rail 211.

[0102] Compared with the prior art, the pair-making device 200 provided by the present invention has the beneficial effects that through the cooperative work of a pair of racks 22a and 22b, a pair of brackets 23a and 23b, and the multi-functional rack 26, the pairing of two pipe bodies, an intermediate pipe plate, and two end pipe plates can be achieved. By alternately and detachably assembling and connecting the second pipe body support portion 262 and the intermediate pipe plate fixing portion 263 to the multi-functional rack body 261, the diversity of its functions is increased, and the structure of the pair-making device 200 is simplified, saving materials and production costs, and moreover, the concentricity, automation degree, and pair-making efficiency of the pairing are improved; at least four of the five components including a pair of rack bodies 221a and 221b, a pair of bracket bodies 231a and 231b, and the multi-functional rack 26 are movably connected to the first guide rail 211 and reciprocate along the first guide rail 211, enabling the two pipe bodies and the intermediate pipe plate to have the freedom to move relative to the two end pipe plates along the first direction; a pair of brackets 23a and 23b have the freedom in the first direction, the second direction, and the third direction, improving the concentricity of the pairing of the pipe body and the end pipe plate; by driving the first pipe body support portions 232a and 232b, the second pipe body support portion 262, and the intermediate pipe plate fixing portion 263 to lift and lower along the third direction by the driving mechanism, the concentricity of the two pipe bodies, the intermediate pipe plate, and the two end pipe plates in the third direction can be achieved; the paired workpiece can be removed by two transfer racks 24a and 24b, avoiding damage to the workpiece; the second pipe body support portion 262 or the intermediate pipe plate fixing portion 263 reciprocates relative to the multi-functional rack body 261 along the second direction under the drive of the driving mechanism, enabling the two pipe bodies or the intermediate pipe plate to be concentrically paired with the two end pipe plates in the second direction; the intermediate pipe plate fixing portion 263 can prevent the intermediate pipe plate from falling off the bracket 2632 or even being damaged; the first switch controls the first electromagnet 2633 to tightly hold the intermediate pipe plate, strengthening the fixation of the intermediate pipe plate; the motor is connected to the rotating member and drives the rotating member to drive the pipe body to rotate around the first direction, enabling the pipe body to rotate to the pairing position for pairing with the two end pipe plates; the rotating member is provided as a pair of rollers 2321, which not only defines the length direction of the pipe body to be consistent with the first direction, but also prevents the pipe body from rolling off the rollers 2321; the locking member 2322 locks the rollers 2321 to limit the deviation of the pipe body from the pairing position for pairing with the two end pipe plates; the end pipe plate can be fixed to the racks 22a and 22b by the positioning pin 2222 and the second electromagnet 2223; the distance measuring instrument can detect the distance between the two end pipe plates to avoid gaps or mutual extrusion between the pipe body and the two end pipe plates, resulting in defective products.

[0103] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0104] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A pairing device for pairing two pipe bodies, an intermediate pipe plate and two end pipe plates, characterized in that, it includes a first guide rail extending in a first direction, a pair of racks oppositely arranged along the first direction, a pair of brackets arranged between the pair of racks, a multi-functional rack arranged between the pair of brackets, and a driving mechanism. The pair of racks correspond to the two end pipe plates one by one. Each rack includes a rack body and an end pipe plate fixing part for supporting and fixing the corresponding end pipe plate. The pair of brackets correspond to the two pipe bodies one by one. Each bracket includes a bracket body and a first pipe body supporting part for supporting the corresponding pipe body. The multi-functional rack includes a multi-functional rack body, a second pipe body supporting part for supporting at least one of the two pipe bodies, and an intermediate pipe plate fixing part for supporting and fixing the intermediate pipe plate. The second pipe body supporting part and the intermediate pipe plate fixing part are detachably and alternately assembled and connected to the multi-functional rack body.

2. The pairing device according to claim 1, characterized in that, the first pipe body supporting part is movably assembled on the bracket body and reciprocates relative to the bracket body in a second direction perpendicular to the first direction under the drive of the driving mechanism; the pairing device further includes two transfer racks and a second guide rail parallel to the first guide rail. The two transfer racks are respectively arranged between a pair of bracket bodies and the first guide rail. Each transfer rack has a first end slidably connected to the first guide rail and a second end slidably connected to the second guide rail. The two transfer racks can reciprocate along the first guide rail and the second guide rail and drive the corresponding bracket body to reciprocate along the first direction; each transfer rack is provided with a third guide rail extending in a third direction. Each bracket body is slidably connected to the corresponding transfer rack and reciprocates along the third guide rail, wherein the third direction is perpendicular to the first direction and the second direction.

3. The pairing device according to claim 1, characterized in that, when the second pipe body supporting part is assembled and connected to the multi-functional rack body, the second pipe body supporting part reciprocates relative to the multi-functional rack body in a second direction perpendicular to the first direction under the drive of the driving mechanism; when the intermediate pipe plate fixing part is assembled and connected to the multi-functional rack body, the intermediate pipe plate fixing part reciprocates relative to the multi-functional rack body in the second direction under the drive of the driving mechanism.

4. The pairing device according to claim 1, characterized in that, the intermediate pipe plate fixing part includes a fixing plate arranged perpendicular to the first direction and a bracket for supporting the intermediate pipe plate. The bracket defines that the length direction of the intermediate pipe plate is consistent with the first direction, and the bracket and the fixing plate are arranged at intervals along the first direction.

5. The pairing device according to claim 4, characterized in that, The intermediate tube sheet fixing portion further includes a first electromagnet for sucking and fastening the intermediate tube sheet, and a first switch for controlling the energization or de-energization of the first electromagnet. The first electromagnet is embedded at one end of the fixing plate close to the bracket.

6. The pairing device according to claim 1, wherein, both the first tube body supporting portion and the second tube body supporting portion include a motor and a rotating member that defines the length direction of the corresponding tube body to be the same as the first direction. The motor is connected to the rotating member and drives the rotating member to drive the corresponding tube body to rotate around the first direction.

7. The pairing device according to claim 6, wherein, the first tube body supporting portion is movably assembled on the bracket body and reciprocates relative to the bracket body along a second direction perpendicular to the first direction under the drive of the drive mechanism; the rotating member is a pair of rollers arranged at intervals along a third direction. The rollers have an axis along the first direction. The motor is respectively connected to the pair of rollers and drives the pair of rollers to rotate around the axis respectively. The tube body supporting portion further includes a locking member for restricting the rotation of the rollers. The third direction is perpendicular to the first direction and the second direction.

8. The pairing device according to claim 1, wherein, the end tube sheet fixing portion includes a vertical plate perpendicular to the first direction, a positioning pin for positioning the end tube sheet, a second electromagnet for sucking and fastening the corresponding end tube sheet, and a second switch for controlling the energization or de-energization of the second electromagnet. The vertical plate is fixedly assembled on one side of the frame body close to the bracket. The vertical plate is provided with a through hole. The positioning pin passes through the through hole and is inserted into the end tube sheet. The vertical plate has an inner surface facing the bracket. The electromagnet is embedded in the vertical plate and is flush with the inner surface of the vertical plate.

9. The pairing device according to claim 1, wherein, it further includes a rangefinder. The rangefinder includes a transmitting end and a receiving end. The transmitting end is arranged on one of the pair of frames, and the receiving end is arranged on the other of the pair of frames.

10. The pairing device according to claim 9, wherein, it further includes a controller. The controller is respectively connected to the drive mechanism and the rangefinder, and is used for: acquiring the distance information detected by the rangefinder, and controlling the drive mechanism to drive the pair of frames to reciprocate along the first guide rail according to the distance information detected by the rangefinder.

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