A high-precision welding mechanism capable of positioning and pairing

Abstract

The present invention discloses a high-precision welding mechanism capable of positioning and pairing, comprising a welding stand, a self-clamping pairing mechanism and a self-clamping loading and unloading mechanism. The left and right sides of the self-clamping pairing mechanism are both provided with a feeding mechanism for supplying a sub-plate body in a hardware angle code, which is used for a self-clamping material picking and positioning operation of the sub-plate body in the hardware angle code, and which assists in automatic assembly and docking operations. The self-clamping loading and unloading mechanism is arranged in the middle of the frame cavity of the frame part of the welding stand, which can perform a self-clamping locking operation, and is used for automatic feeding of a main plate body in a hardware angle code and automatic unloading processing of the hardware angle code after welding. The high-precision welding mechanism capable of positioning and pairing realizes an automatic clamping material picking operation through the setting of a linkage structure, ensures accurate positioning in picking up materials through the dual methods of pushing and clamping, and realizes automatic assembly and docking operations, meeting the purpose of quick and accurate positioning and pairing.

Description

Technical Field

[0001] The invention relates to the technical field related to hardware welding, and in particular to a high-precision welding mechanism capable of positioning and pairing. Background Art

[0002] Hardware accessories refer to the construction or mechanical hardware connectors made of gold, silver, copper, iron, tin and other metals, which are used to fix things, and the hardware tools used for daily use or production. As for construction hardware, the hardware corners used for connecting building curtain walls are essential basic accessories and are widely used.

[0003] In architecture, hardware angle brackets are hardware that connect components that intersect at right angles of 90 degrees and are used to support objects. During the processing and manufacturing of hardware angle brackets, according to their design and structural settings, welding equipment is usually required to heat, high temperature or high pressure to join the various metal parts of the angle bracket to assist in molding and manufacturing.

[0004] The welding devices used in the prior art still have certain disadvantages, such as:

[0005] 1. The existing welding device used in the processing and production of hardware corner code pieces requires auxiliary tools to perform the assembly and docking between two parts of the hardware corner code pieces, and to temporarily limit and fix the parts of the hardware corner code pieces after the assembly and docking. The above-mentioned auxiliary tools are such as magnetic triangular locators or positioning fixtures, etc. However, the existing welding device and welding method cannot realize the automatic assembly and docking operation. Repeated measurement and adjustment are required during the assembly and docking, which cannot meet the purpose of quick and accurate positioning and pairing, affecting the convenience of operation and work efficiency;

[0006] 2. The existing welding devices used in the processing and production of hardware corner code parts mostly use manual assembly and docking of various components in the hardware corner code parts. The automation performance is not high, and the automatic supply of various components in the hardware corner code parts cannot be realized, and the automatic unloading treatment after welding processing cannot be realized;

[0007] Therefore, we propose a high-precision welding mechanism that can position and pair, so as to solve the above-mentioned problems. Summary of the invention

[0008] The purpose of the present invention is to provide a high-precision welding mechanism that can be positioned and paired, so as to solve the problems proposed in the above-mentioned background technology that the automated assembly and docking operation cannot be realized, the automatic supply of the various components in the hardware angle code parts cannot be realized, and the automated unloading processing after welding processing cannot be realized, which affects the convenience of operation and work efficiency.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a high-precision welding mechanism capable of positioning and pairing, comprising:

[0010] A welding stand, wherein the front and rear sides of the frame of the welding stand are fixedly provided with a conveying assembly, and the conveying assembly is used for automatic fixed-point conveying of hardware corner pieces;

[0011] Also includes:

[0012] A self-clamping pairing mechanism, which is placed in the center of the frame cavity of the frame-carrying part of the welding stand, and a feeding mechanism for supplying the auxiliary plate in the hardware angle code is provided on both sides of the self-clamping pairing mechanism. The self-clamping pairing mechanism is used for the self-clamping material taking and positioning operation of the auxiliary plate in the hardware angle code, and it assists in the automatic assembly and docking operation of the auxiliary plate in the hardware angle code to the main plate;

[0013] Wherein, the self-clamping matching mechanism includes a shell seat, a main push piece, an auxiliary push piece, a linkage tube and a clamping piece, the upper seat wall of the shell seat is fixedly connected to the output end of the first pneumatic telescopic rod by bolts, and the first pneumatic telescopic rod is fixedly installed in the middle of the horizontal frame of the frame-carrying part of the welding stand by bolts, the main push piece is slidably connected in the middle seat cavity of the shell seat, and the middle block of the main push piece forms a sliding structure on the output rod body of the second pneumatic telescopic rod, and the second pneumatic telescopic rod is fixedly installed on the upper seat cavity wall of the shell seat by bolts;

[0014] Wherein, an auxiliary push piece is slidably connected in the lower seat cavity of the shell seat, and a first spring is installed at the connection between the auxiliary push piece and the shell seat, and through-shaped oblique grooves are opened on the front and rear side groove walls of the through groove in the auxiliary push piece;

[0015] Wherein, the left and right side walls of the lower seat cavity of the shell seat are telescopically and slidably connected with a linkage tube, and a second spring is installed at the connection between the inner end of the linkage tube and the shell seat, and the outer end of the linkage tube is rotatably connected with a clamping piece, and a torsion spring is installed at the connection between the clamping piece and the linkage tube;

[0016] Wherein, both the front and rear sides of the inner end of the linkage tube are provided with an integrated pin column part, and the pin column part is connected to the oblique groove in a sliding manner;

[0017] The linkage tube forms a sliding structure on the auxiliary rod, and the middle section of the auxiliary rod is fixedly connected to the lower seat cavity wall of the shell seat by bolts, and the rod body portion of the auxiliary rod close to the linkage tube is provided with a positioning groove, and the rod body portion of the auxiliary rod close to the clamping piece is provided with a spiral groove group;

[0018] Wherein, the feeding mechanism comprises a silo pipe, a first rack plate and a second rack plate, the upper tube wall of the silo pipe is fixedly connected to the frame portion in the welding stand by bolts, and the lower end of the silo pipe is placed on the outside of the clamp in a cover-type state, and the first rack plate and the second rack plate are slidably connected in sequence from top to bottom in the outer tube wall at the lower end of the silo pipe, and the ends of the first rack plate and the second rack plate are connected to the auxiliary plate body in the hardware angle piece by overlapping and bonding;

[0019] The first rack plate is meshed with the upper side of the gear column, and the lower side of the gear column is meshed with the second rack plate, and the gear column is assisted by the shaft column to form a rotating structure in the groove cavity of the outward tube wall of the silo tube;

[0020] The middle part of the first rack plate facing outward is fixedly connected to the output end of the telescopic electromagnet by bolts, and the telescopic electromagnet is fixedly mounted on the outward tube wall of the silo tube by bolts;

[0021] Wherein, a fourth spring is installed at the connection between the second rack plate and the silo pipe;

[0022] The self-clamping and loading and unloading mechanism is arranged in the middle of the frame cavity of the frame part of the welding stand. It can perform self-clamping and locking operations on the main board body of the hardware angle code part, and is used for automatic feeding of the main board body of the hardware angle code part and automatic unloading of the hardware angle code part after welding.

[0023] Preferably, a circular pressure plate is fixedly connected to the output rod body of the second pneumatic telescopic rod by bolts, and the circular pressure plate is connected to the main pushing member in a sliding manner, and a third spring is installed at the connection between the circular pressure plate and the main pushing member;

[0024] Wherein, the left and right side blocks of the main pushing member are respectively connected to the auxiliary plate bodies in the left and right hardware corner code members by pushing, pressing and fitting.

[0025] Preferably, the limiting ring in the second pneumatic telescopic rod is connected to the transverse block of the auxiliary push member by pushing and pressing, and the maximum sliding distance of the auxiliary push member is smaller than the maximum sliding distance of the circular pressure plate on the main push member.

[0026] Preferably, a first pin is fixedly connected to the tube body of the linkage tube, and the first pin is connected to the positioning groove in a sliding manner;

[0027] The length of the positioning groove is the same as that of the spiral groove group, and the spiral groove group is connected to the second pin in a sliding manner, and the second pin is clamped and fixedly connected to the clamping member by bolts;

[0028] The outward end of the clamp is in a conical structure, and the upper and lower sides of the clamp are vertically provided with integrated pressure plate parts, and the pressure plate part in the clamp is connected with the auxiliary plate body in the hardware corner piece by clamping and pressing.

[0029] Preferably, the self-clamping loading and unloading mechanism comprises a shell frame and a clamping plate, the middle part of the lower side wall of the shell frame is fixedly connected to the output end of the third pneumatic telescopic rod by bolts, and the third pneumatic telescopic rod is fixedly installed on the horizontal plate of the frame part in the welding stand by bolts, and the upper side wall of the shell frame is connected to the main board body in the hardware corner piece by overlapping and bonding;

[0030] Wherein, the left and right sides of the shell frame are slidably connected with clamping plates, and a double-headed cylinder is fixedly installed in the frame cavity of the shell frame by bolts, and the two output ends of the double-headed cylinder are respectively fixedly connected to the bent ends of the transverse plates in the two clamping plates by bolts.

[0031] Preferably, the sliding directions of the two clamping plates in the shell frame are opposite to each other, and the longitudinal plate body in the clamping plate and the main plate body in the hardware corner piece are clamped and pressed together;

[0032] Wherein, a suction cup type electromagnet is fixedly mounted on the longitudinal plate body in the clamping plate.

[0033] Compared with the prior art, the invention has the following beneficial effects: the high-precision welding mechanism capable of positioning and pairing realizes automatic clamping material taking operation through the setting of the linkage structure, ensures accurate positioning in the material taking through the dual modes of pushing and clamping, and realizes automatic assembly and docking operation, meets the purpose of fast and accurate positioning and pairing, and improves work efficiency;

[0034] 1. A linkage tube and a clamping piece are provided. Through the elastic support of the third spring, when the second pneumatic telescopic rod is initially extended, the main push piece is driven to move downward so that its side block pushes the auxiliary plate in the hardware corner code piece, and the auxiliary plate in the hardware corner code piece is positioned and restricted on the clamping piece. After the second pneumatic telescopic rod continues to extend, the main push piece is kept in the pushing state, and the auxiliary push piece is pushed downward. Through the sliding cooperation between the pin column part and the oblique groove, and through the sliding cooperation between the second pin bolt and the spiral groove group, the clamping piece is rotated and reversed and then synchronously retracted to clamp the auxiliary plate in the hardware corner code piece. Through the setting of the linkage structure, the automatic clamping material picking operation is realized. Through the dual methods of pushing and clamping, the precise positioning in the material picking is guaranteed, and the reliability after clamping and fixing is also guaranteed.

[0035] Furthermore, the silo pipe is arranged in an inclined state after being installed, and its lower end silo opening is correspondingly fitted to the lower end of the shell seat, and is placed on the outside of the clamping piece in a cover state. Through the limiting cooperation of the first rack plate and the second rack plate, the one-by-one feeding operation of the auxiliary plates in the hardware corner code piece is realized, and the outward end of the clamping piece is arranged in a conical structure. When the auxiliary plates in the hardware corner code piece slide down to feed, the clamping piece is inserted through the bolt holes of the auxiliary plates in the hardware corner code piece, so as to realize the automatic feeding operation of the auxiliary plates in the hardware corner code piece. Through the automatic setting, the work efficiency is effectively improved;

[0036] Furthermore, the self-clamping pairing mechanism and the self-clamping loading and unloading mechanism are on the same vertical central axis, and the self-clamping pairing mechanism is driven to perform lifting movement by the first pneumatic telescopic rod, and the self-clamping pairing mechanism carries the auxiliary plate body in the hardware angle code piece after being clamped and positioned, and docks with the main plate body in the hardware angle code piece in the self-clamping loading and unloading mechanism, so as to realize the automatic assembly docking operation, which is different from the manual assembly docking in the traditional welding, and does not need to adjust and measure repeatedly, so as to meet the purpose of quick and accurate positioning and pairing;

[0037] 2. It is equipped with a clamping plate and a transmission assembly. Driven by a double-headed cylinder, the sliding directions of the two clamping plates on the frame are set in opposite directions. When the two clamping plates shrink and slide, they can perform a self-clamping and locking operation on the main body of the hardware angle code. When the two clamping plates extend and slide, the magnetic adsorption between the suction cup electromagnet and the main body of the hardware angle code drives the welded hardware angle code and the clamping piece to automatically separate. The automated setting ensures convenient operation.

[0038] Furthermore, by driving the third pneumatic telescopic rod, the self-clamping and loading and unloading mechanism is operated to perform lifting and lowering movements. The width of the shell frame is smaller than the spacing between the left and right conveying components, that is, the self-clamping and loading and unloading mechanism can freely move in and out between the two conveying components. The conveying component carries the main board body of the hardware angle code piece and transports it to the top of the self-clamping and loading and unloading mechanism at a fixed point. After the self-clamping and loading and unloading mechanism rises and moves, the automatic feeding of the main board body of the hardware angle code piece is realized. After the self-clamping and loading and unloading mechanism descends and moves, the automatic unloading processing of the hardware angle code piece after welding is realized, and the automatic unloading output is carried out in cooperation with the conveying component. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the side cross-sectional structure of the connection between the welding stand and the conveying assembly of the present invention;

[0041] Figure 3 This is a schematic diagram of the front cross-sectional structure of the connection between the shell seat and the silo pipe of the present invention;

[0042] Figure 4It is a schematic diagram of the front view cross-section of the three-dimensional structure of the self-clamping pairing mechanism of the present invention;

[0043] Figure 5 It is a schematic diagram of the three-dimensional structure of the main push member and the auxiliary push member separated from each other from the side of the present invention;

[0044] Figure 6 It is a schematic diagram of the front view cross-section of the three-dimensional structure of the connection between the housing seat and the auxiliary push member of the present invention;

[0045] Figure 7 It is a schematic diagram of the front cross-sectional three-dimensional structure of the connection between the housing seat and the linkage pipe of the present invention;

[0046] Figure 8 It is a schematic diagram of a front cross-sectional three-dimensional structure of the connection between the linkage pipe and the clamping member of the present invention;

[0047] Fig. 9 It is a bottom-view cross-sectional three-dimensional structural diagram of the connection between the linkage pipe and the auxiliary rod of the present invention;

[0048] Fig.10 It is a schematic diagram of the front cross-sectional three-dimensional structure of the feeding mechanism of the present invention;

[0049] Fig.11 This is a schematic diagram of a front view of a three-dimensional structure of the first rack plate and the second rack plate being separated according to the present invention;

[0050] Fig.12 This is a schematic diagram of the self-clamping and loading and unloading mechanism of the present invention in a disassembled front view stereoscopic structure;

[0051] Fig.13 It is a bottom-up three-dimensional structural schematic diagram of the connection between the shell frame and the clamping plate of the present invention.

[0052] In the figure: 1, welding stand; 2, conveying assembly; 3, self-clamping matching mechanism; 4, feeding mechanism; 5, self-clamping loading and unloading mechanism; 6, shell seat; 7, first pneumatic telescopic rod; 8, main push member; 9, second pneumatic telescopic rod; 901, round pressure plate; 10, auxiliary push member; 1001, oblique groove; 11, first spring; 12, linkage tube; 1201, pin column; 1202, first pin bolt; 13, second spring; 14, clamping member ; 1401, second pin; 15, torsion spring; 16, third spring; 17, auxiliary rod; 1701, positioning groove; 1702, spiral groove group; 18, silo pipe; 19, first rack plate; 20, second rack plate; 21, gear column; 22, telescopic electromagnet; 23, fourth spring; 24, frame; 25, third pneumatic telescopic rod; 26, clamping plate; 2601, suction cup electromagnet; 27, double-head cylinder. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] See also Figure 1-13 The present invention provides a technical solution: a high-precision welding mechanism capable of positioning and pairing, comprising a welding stand 1, a self-clamping pairing mechanism 3 and a self-clamping loading and unloading mechanism 5.

[0055] The high-precision welding mechanism capable of positioning and pairing is mainly used for welding in the production and processing of hardware corner code parts. The hardware corner code parts are divided into two parts: a main plate body and a sub-plate body. The main plate body is a flat plate structure, and bolt holes symmetrically arranged front and back are opened on both ends of the main plate body. The sub-plate body is an "L" shaped structure, and bolt holes symmetrically arranged front and back are opened on the longitudinal part. After the sub-plate body is placed, the transverse part thereof needs to be overlapped and welded to the main plate body.

[0056] The high-precision welding mechanism capable of positioning and pairing requires two hardware angle code pieces to be combined into a group, and the main plate body and the auxiliary plate body are assembled and docked in groups, and welding operations are performed. When the high-precision welding mechanism capable of positioning and pairing is in use, the welding stand 1 is composed of a combination of three parts: a table plate part, a frame part and a frame part. Conveying components 2 are arranged on both the front and rear sides of the frame part of the welding stand 1. The conveying components 2 are first used to automatically and fixed-pointly convey the main plate body of the hardware angle code piece before feeding, wherein the main plate bodies of two hardware angle code pieces are taken as a group, and the self-clamping and loading and unloading mechanism 5 is arranged in the middle of the frame cavity of the frame part of the welding stand 1, and is arranged in a horizontal state, and then the self-clamping and loading and unloading mechanism 5 is used to simultaneously perform self-clamping and locking operations on the main plate bodies of the two hardware angle code pieces, and the hardware angle code piece is performed. The main plate body of the code piece is lifted upward for automatic feeding before welding, and the self-clamping matching mechanism 3 is placed in the middle of the frame cavity of the frame part of the welding stand 1, and is arranged in a vertical state. The left and right sides of the self-clamping matching mechanism 3 are provided with feeding mechanisms 4 for supplying the auxiliary plate body of the hardware angle code piece. Then, the self-clamping matching mechanism 3 performs the self-clamping material picking and positioning operation of the auxiliary plate body of the hardware angle code piece, that is, picks up the auxiliary plate bodies of two hardware angle code pieces at the same time, and assists in the automatic assembly and docking operation of the auxiliary plate body of the hardware angle code piece to the main plate body. After completing the welding operation between the main plate body and the auxiliary plate body of the hardware angle code piece, the self-clamping loading and unloading mechanism 5 is used to automatically unload the hardware angle code piece after welding, and the conveying component 2 is used to automatically output the hardware angle code piece after welding;

[0057] When the automatic fixed-point conveying before the main body of the hardware corner code is fed by the conveying component 2, specifically, according to the attached Figure 1and Figure 2 As shown, the frame part of the welding stand 1 is fixedly connected to the lower side of the table part by bolts, and after it is placed, the frame part is placed on the ground so that the table part is set in a horizontal state. The front and rear sides of the frame part of the welding stand 1 are fixedly provided with conveying components 2. Since the conveying component 2 is specifically an electric conveyor belt (the above-mentioned electric conveyor belt is a prior art and is not described in detail in the drawings of the specification), the spacing size between the front and rear conveying components 2 is adapted to the width size of the main body of the hardware corner code. After the main body of the hardware corner code is placed, it is movably arranged between the front and rear conveying components 2, and the front and rear ends of the main body are respectively overlapped and pressed on the belt bodies of the front and rear conveying components 2, and are arranged in an active positioning state. The conveying component 2 is started to operate, and the main body of the hardware corner code is moved to the top of the self-clamping loading and unloading mechanism 5.

[0058] When the main bodies of the two hardware angle code pieces are simultaneously self-clamped and locked by the self-clamping loading and unloading mechanism 5, and the upward lifting automatic feeding operation before welding is performed, specifically, according to the attached Figure 1 , Figure 2 , Fig.12 and Fig.13 As shown, a horizontal cross plate is fixedly connected to the frame part of the welding stand 1 by bolts, wherein the cross plate is placed below the conveying assembly 2, and the third pneumatic telescopic rod 25 is fixedly installed on the cross plate of the frame part of the welding stand 1 by bolts after being placed, and is arranged in a vertical upward state, wherein the output end movably passes through the cross plate of the frame part of the welding stand 1, and since the middle part of the lower side wall of the shell frame 24 is fixedly connected to the output end of the third pneumatic telescopic rod 25 by bolts, the third pneumatic telescopic rod 25 is started to stretch and operate, so that the shell frame 24 moves upward in the frame cavity of the frame part of the welding stand 1;

[0059] Since the width of the frame 24 is smaller than the spacing between the left and right conveying components 2, the frame 24 is driven to move upward and moves through the gap between the two conveying components 2, so that its upper side wall is connected to the main body of the hardware corner piece in an overlapping manner;

[0060] Since both sides of the shell frame 24 are provided with open wedge-shaped limiting grooves, and since the clamping plate 26 is arranged in an "L"-shaped structure, wherein the transverse plate body is provided with an integrated wedge-shaped strip, after the clamping plate 26 is installed, the transverse plate body is in contact with the lower side wall of the shell frame 24, and the wedge-shaped strip is movably inserted into the wedge-shaped limiting groove in the shell frame 24, so that the clamping plate 26 is positioned on the shell frame 24 in an active state;

[0061] Since the double-headed cylinder 27 is installed in the frame cavity of the shell frame 24 by bolts after being placed, it is set in a horizontal state, and its two output ends correspond to the two clamping plates 26 respectively. Since the end of the transverse plate body in the clamping plate 26 is set in a downward bending state, the two output ends of the double-headed cylinder 27 are respectively fixedly connected to the bending ends of the transverse plate bodies in the two clamping plates 26 by bolts, and the double-headed cylinder 27 is started to shrink and operate, so that the left and right clamping plates 26 slide and shrink in opposite directions on the shell frame 24, and the longitudinal plate body in the clamping plate 26 is clamped and pressed with the main plate body in the hardware corner code piece, so that the clamping and locking of the main plate bodies in the two hardware corner code pieces are completed;

[0062] Since a through hole for feeding or unloading is provided on the middle plate portion of the welding stand 1, the center of the self-clamping and loading and unloading mechanism 5 is arranged corresponding to the center of the through hole of the middle plate portion of the welding stand 1, and the specification size of the self-clamping and loading and unloading mechanism 5 is smaller than the specification size of the through hole of the middle plate portion of the welding stand 1, that is, the self-clamping and loading and unloading mechanism 5 together with the hardware angle code piece can enter and exit from the through hole of the middle plate portion of the welding stand 1, and then the third pneumatic telescopic rod 25 is started to continue to stretch and operate, so that the shell frame 24 together with the middle plate body of the hardware angle code piece rises and moves, and moves through the through hole of the middle plate portion of the welding stand 1, and is placed on the upper side of the middle plate portion of the welding stand 1, completing the automatic feeding operation of the middle plate body of the hardware angle code before welding;

[0063] When the auxiliary plate in the hardware angle code is supplied to the self-clamping matching mechanism 3 through the feeding mechanism 4, specifically, according to the attached Figure 1 , Figure 3 , Fig.10 and Fig.11 As shown, the telescopic electromagnet 22 is installed on the outward tube wall of the silo tube 18 by bolts after being installed, and is arranged in a horizontal state, wherein the output end is movably inserted into the inward tube wall groove cavity at the lower end of the silo tube 18. Since the first rack plate 19 is movably clamped on the upper part of the outward tube wall groove cavity of the silo tube 18 after being installed, and is arranged in a horizontal state, and since the middle part of the first rack plate 19 toward the outside is fixedly connected with the output end of the telescopic electromagnet 22 by bolts, the telescopic electromagnet 22 is started to extend and operate, so that the first rack plate 19 slides out in the outward tube wall at the lower end of the silo tube 18, and the end of the first rack plate 19 is connected to the sub-plate body in the next hardware angle code piece by overlapping and fitting, that is, the sub-plate body in the next hardware angle code piece is limited to prevent it from slipping;

[0064] Since the middle part of the gear column 21 is rotatably connected with the shaft column, it is movably clamped in the groove cavity of the inner tube wall at the lower end of the silo tube 18 after being installed, wherein the two ends of the shaft column are respectively fixedly inserted into the groove cavity walls on both sides, and are placed in the gap between the first rack plate 19 and the second rack plate 20. Since the first rack plate 19 is meshedly connected with the upper side of the gear column 21, and the lower side of the gear column 21 is meshedly connected with the second rack plate 20, when the first rack plate 19 is driven to extend and slide, the meshing action between the first rack plate 19 and the gear column 21 causes the gear column 21 to rotate in the groove cavity of the outer tube wall of the silo tube 18 with the assistance of the shaft column, and then the meshing action between the gear column 21 and the second rack plate 20 drives the second rack plate 20 to slide, that is, the sliding direction of the second rack plate 20 is opposite to the sliding direction of the first rack plate 19.

[0065] After the second rack plate 20 is installed, it is movably clamped in the lower part of the groove cavity of the outward tube wall of the silo tube 18 and is arranged in a horizontal state. In addition, since a fourth spring 23 is installed at the connection between the second rack plate 20 and the silo tube 18, the fourth spring 23 is symmetrically arranged about the horizontal center axis of the second rack plate 20, one end of which is movably inserted in the spring bin of the second rack plate 20 and pressed against the bin wall, and the other end of which is pressed against the groove cavity wall of the inward tube wall of the silo tube 18. After being driven, the second rack plate 20 slides and contracts in the outward tube wall at the lower end of the silo tube 18, and the fourth spring 23 is squeezed and elastically deformed, wherein the fourth spring 23 is reset by elastic deformation to assist the reset sliding of the second rack plate 20. When the second rack plate 20 shrinks and slides, the end of the second rack plate 20 loses the overlapping and fitting connection with the auxiliary plate body in the current hardware angle code piece, that is, the auxiliary plate body in the current hardware angle code piece loses the limiting treatment and does not restrict its sliding.

[0066] Since the feeding mechanism 4 is arranged in an inclined state after being installed, the inclination directions of the left and right feeding mechanisms 4 are opposite, the upper end of the silo pipe 18 is inserted through the horizontal frame of the frame portion of the welding stand 1 after being installed, and the upper tube wall thereof is fixedly connected to the frame portion of the welding stand 1 by bolts, and the upper end of the silo pipe 18 is in an open state, and the auxiliary plate body in the hardware angle code piece is neatly stacked in the tube cavity of the silo pipe 18 through the upper end of the silo pipe 18. When the second rack plate 20 loses its limit on the auxiliary plate body in the current hardware angle code piece, during the feeding operation, the auxiliary plate body in the current hardware angle code piece slides down along the inclined silo pipe 18 due to the influence of gravity;

[0067] Since the lower end of the silo tube 18 is in an open state and corresponds to the lower end of the shell seat 6, it is placed on the outside of the clamp 14 in a cover state, and since the outward end of the clamp 14 is in a conical structure, the width of the pressure plate in the clamp 14 is smaller than the diameter of the clamp 14, and the clamp 14 is placed on the outward end of the linkage tube 12. The front and rear linkage tubes 12 on one side correspond to the front and rear bolt holes of the auxiliary plate in the hardware angle code piece on one side, respectively. When the auxiliary plate in the current hardware angle code piece slides down to feed, the clamp 14 is inserted through the bolt holes of the auxiliary plate in the hardware angle code piece, that is, the auxiliary plate in the current hardware angle code piece is hung on the clamp 14 to complete the feeding operation;

[0068] When the self-clamping matching mechanism 3 is used to perform the self-clamping material picking of the auxiliary plate body in the hardware angle code piece and assist in the automatic assembly and docking operation, specifically, according to the attached Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the end of the output rod body of the second pneumatic telescopic rod 9 is sleeved and fixedly connected to the limiting ring by bolts. After installation, the output rod body moves through the middle block of the main pushing member 8, and the limiting ring is movably clamped on the lower side wall of the middle block of the main pushing member 8. With the assistance of the limiting ring, the main pushing member 8 is prevented from being separated from the output rod body of the second pneumatic telescopic rod 9. Since the circular pressure plate 901 is inserted through the sleeve and fixedly connected to the output rod body of the second pneumatic telescopic rod 9 by bolts after installation, it is movably inserted in the middle block cylinder of the main pushing member 8. In the groove, since a third spring 16 is installed at the connection between the circular pressure plate 901 and the main push member 8, the third spring 16 is movably sleeved on the outer side of the output rod body of the second pneumatic telescopic rod 9 after being installed, one end of which is pressed against the plate body of the circular pressure plate 901, and the other end of which is pressed against the wall of the middle block cylinder groove of the main push member 8. Through the elastic support of the third spring 16, the main push member 8 is positioned on the output rod body of the second pneumatic telescopic rod 9 in an active state, and the output rod body of the second pneumatic telescopic rod 9 can drive the main push member 8 to move synchronously;

[0069] Since the shell seat 6 is provided with an upper seat cavity, a middle seat cavity and a lower seat cavity from top to bottom, the second pneumatic telescopic rod 9 is fixedly installed on the upper seat cavity wall of the shell seat 6 by bolts after being placed, and is arranged in a vertical downward state, wherein the output rod body movably penetrates through the upper seat cavity wall of the shell seat 6 and is inserted into the middle seat cavity of the shell seat 6. Moreover, since the cavity walls on both sides of the middle seat cavity of the shell seat 6 are provided with through-going slide grooves, the longitudinal section of the main push member 8 is arranged in an "E"-shaped structural state, and after its placement, the middle block is movably clamped in the middle seat cavity of the shell seat 6, and the left and right side blocks thereof are movably inserted through the slide grooves on both sides of the middle seat cavity of the shell seat 6 to extend outward, and are movably clamped in the slide grooves on both sides, so that the main push member 8 is in the shell seat 6. The upper part is positioned in an active state, and the second pneumatic telescopic rod 9 is started to stretch and operate. Through the elastic support of the third spring 16, the second pneumatic telescopic rod 9 initially stretches and drives the main push member 8 to move synchronously, so that the main push member 8 slides downward in the middle seat cavity of the shell seat 6. A notch is opened in the middle of the inner tube wall at the lower end of the silo tube 18. The side blocks in the main push member 8 enter the tube cavity of the silo tube 18 through the notch in the silo tube 18, and the left and right side blocks of the main push member 8 are respectively connected with the auxiliary plates in the left and right hardware corner code pieces by pushing and pressing. After the auxiliary plate in the hardware corner code piece is pushed, the side wall of the bolt hole is pressed against the clamp 14, even if its positioning is limited to the clamp 14;

[0070] Since the circular pressure plate 901 is connected to the main push member 8 in a sliding manner, the maximum sliding distance of the auxiliary push member 10 is smaller than the maximum sliding distance of the circular pressure plate 901 on the main push member 8. When the main push member 8 slides down and presses the auxiliary plate in the hardware angle code, the second pneumatic telescopic rod 9 continues to stretch and operate, so that the middle block of the main push member 8 slides on the output rod body of the second pneumatic telescopic rod 9, and the limit ring in the second pneumatic telescopic rod 9 moves downward to separate from the middle block of the main push member 8, and the third spring 16 is squeezed and elastically deformed;

[0071] Since the limiting ring in the second pneumatic telescopic rod 9 is connected to the transverse block of the auxiliary push member 10 by a pushing and fitting manner, the longitudinal section of the auxiliary push member 10 is set in a "concave"-shaped structural state, and after being installed, it is movably clamped in the lower seat cavity of the shell seat 6 and is set in an active positioning state. In addition, since a first spring 11 is installed at the connection between the auxiliary push member 10 and the shell seat 6, the first spring 11 is symmetrically arranged about the vertical center axis of the auxiliary push member 10. After the first spring 11 is installed, it is placed in the middle of the longitudinal block in the auxiliary push member 10, one end of which is movably inserted in the spring bin of the longitudinal block in the auxiliary push member 10, pressed against the bin wall, and the other end is inserted into the lower seat cavity wall of the shell seat 6. When the second pneumatic telescopic rod 9 continues to extend, the limiting ring in the second pneumatic telescopic rod 9 pushes the auxiliary push member 10, so that the auxiliary push member 10 slides downward in the lower seat cavity of the shell seat 6, and the first spring 11 is squeezed and elastically deformed;

[0072] Since both the front and rear ends of the left longitudinal block and the front and rear ends of the right longitudinal block in the auxiliary push piece 10 are provided with open through grooves, the left and right cavity walls of the lower seat cavity of the shell seat 6 are provided with linkage tubes 12, and the linkage tubes 12 are symmetrically arranged front and back about the horizontal central axis of the shell seat 6, that is, the four front, rear, left and right linkage tubes 12 respectively correspond to the four front, rear, left and right through grooves in the auxiliary push piece 10. After the linkage tube 12 is arranged, it is movable to pass through the lower seat cavity wall of the shell seat 6 and extend outward, and its inner end is movably inserted into the through groove in the auxiliary push piece 10, and is arranged in a horizontal state. Through the cooperation of the pin column part 1201 and the oblique groove 1001, the linkage tube 12 is positioned in the shell seat 6 in an active state. On the lower seat cavity wall, and because the auxiliary rod 17 is arranged in a horizontal state after being arranged, the middle section thereof penetrates through the lower seat cavity wall of the shell seat 6, and the middle section thereof is fixedly connected to the lower seat cavity wall of the shell seat 6 by bolts, and the rod body portion thereof close to the linkage tube 12 is provided with a positioning groove 1701 of a strip-shaped through structure, and the first pin 1202 is fixedly connected to the tube body of the linkage tube 12 after being arranged, and is arranged in a vertical state, and it is movably penetrated through the positioning groove 1701, and the linkage tube 12 is positioned on the lower seat cavity wall of the shell seat 6 in an active state through the cooperation of the first pin 1202 and the positioning groove 1701, that is, it is ensured that the linkage tube 12 only slides in a horizontal state;

[0073] Since through-shaped oblique grooves 1001 are provided on the front and rear side groove walls of the through groove in the auxiliary push member 10, the front and rear two oblique grooves 1001 in the longitudinal blocks on one side of the auxiliary push member 10 are arranged in the same inclination direction, and the oblique groove 1001 of the left longitudinal block of the auxiliary push member 10 and the oblique groove 1001 of the right longitudinal block are arranged in opposite inclination directions, forming an "eight"-shaped structure in combination. In addition, since the front and rear sides of the inner end of the linkage tube 12 are vertically provided with an integrated structure of pin column parts 1201, after the linkage tube 12 is installed, the pin column part 1201 is movably inserted in the oblique groove 1001. When the auxiliary push member 10 is pushed down, the pin column part 1201 slides along the oblique groove 1001, and the sliding cooperation between the pin column part 1201 and the oblique groove 1001 causes the linkage tube 12 to shrink and slide on the lower seat cavity wall of the shell seat 6;

[0074] After the auxiliary rod 17 is installed, its left and right sections are respectively movably inserted into the tube cavities of the left and right two linking tubes 12, and are respectively movably inserted into the tube cavities of the left and right two clamping members 14. In addition, since the second spring 13 is installed at the connection between the inner end of the linking tube 12 and the shell seat 6, after the second spring 13 is installed, one end of the second spring 13 is movably inserted into the spring bin of the inner end of the linking tube 12, pressed against the bin wall, and the other end is plugged into the lower seat cavity wall of the shell seat 6. After the linking tube 12 shrinks and slides, the linking tube 12 slides on the auxiliary rod 17, the first pin 1202 slides along the positioning groove 1701, and the second spring 13 is squeezed to elastically deform.

[0075] Since the outward end of the linkage tube 12 is sleeved and fixedly connected with the tube sleeve portion of the integrated structure by bolts, the longitudinal section of the tube sleeve portion is a "concave"-shaped structure, and since the inward end of the clamping piece 14 is sleeved and fixedly connected with the connecting tube portion of the integrated structure by bolts, the longitudinal section of the connecting tube portion is a "convex"-shaped structure, which is compatible with the tube sleeve portion in the linkage tube 12, after the clamping piece 14 is placed, the connecting tube portion is movably sleeved on the outward end of the linkage tube 12, and the tube sleeve portion in the linkage tube 12 is movably sleeved on the outside of the connecting tube portion in the clamping piece 14, so that the clamping piece 14 is positioned at the outward end of the linkage tube 12 in an active state, and the tube cavity of the clamping piece 14 is connected to the tube cavity of the linkage tube 12, that is, when the linkage tube 12 contracts and slides, the clamping piece 14 is driven to move synchronously;

[0076] Since the auxiliary rod 17 is provided with a spiral groove group 1702 near the rod body of the clamp 14, the spiral groove group 1702 is divided into two parts, a straight groove and a spiral groove, which are symmetrically arranged about the horizontal center axis of the auxiliary rod 17, wherein the spiral groove extends horizontally inwardly and is connected with a straight groove, and the two spiral groove groups 1702 are arranged oppositely. Since the second pin 1401 is symmetrically arranged about the horizontal center axis of the clamp 14, the two second pins 1401 correspond to the two spiral groove groups 1702 respectively, and the second pin 1401 is clamped and connected to the clamp after being placed and fixed by bolts. The clamping member 14 is in a vertical state and is movably inserted in the spiral groove group 1702. When the clamping member 14 initially shrinks and slides following the linkage tube 12, the second pin 1401 slides along the spiral groove in the spiral groove group 1702. Through the sliding cooperation of the two, the clamping member 14 rotates and reverses at the outward end of the linkage tube 12. When the clamping member 14 continues to shrink and slide following the linkage tube 12, the second pin 1401 slides along the straight groove in the spiral groove group 1702. Through the sliding cooperation of the two, the clamping member 14 maintains the rotated state and continues to shrink and slide.

[0077] Since a torsion spring 15 is installed at the connection between the clamping piece 14 and the linkage tube 12, the torsion spring 15 is movably sleeved on the outward end of the linkage tube 12 after being installed, and is placed in the gap between the linkage tube 12 and the connecting tube part in the clamping piece 14, one end of the torsion spring 15 is clamped on the connecting tube part in the clamping piece 14, and the other end of the torsion spring 15 is clamped on the outward end of the linkage tube 12. After the clamping piece 14 is driven to rotate and reverse, the torsion spring 15 is squeezed and elastically deformed;

[0078] Since the upper and lower sides of the clamping piece 14 are vertically provided with a pressure plate portion of an integrated structure, and since the length dimension of the positioning groove 1701 is the same as the length dimension of the spiral groove group 1702, after the clamping piece 14 rotates and changes direction, the pressure plate portion exceeds the width of the bolt hole of the auxiliary plate body in the hardware angle code piece. When the clamping piece 14 follows the linkage tube 12 to fully shrink and slide, the pressure plate portion in the clamping piece 14 and the auxiliary plate body in the hardware angle code piece are connected by a clamping and pressing method, completing the self-clamping material taking;

[0079] Since the longitudinal section of the frame portion in the welding stand 1 is a "U"-shaped frame structure, the lower end of the longitudinal frame in the frame portion is fixedly connected to the upper side of the table portion in a vertically upward state by bolts, and the first pneumatic telescopic rod 7 is installed by bolts in the middle of the horizontal frame of the frame portion in the welding stand 1, and is arranged in a vertically downward state, wherein the output end movably passes through the middle of the horizontal frame of the frame portion in the welding stand 1, and is inserted into the frame cavity of the frame portion, and since the upper side seat wall of the shell seat 6 is fixedly connected to the first by bolts after the shell seat 6 is installed, The output end of the pneumatic telescopic rod 7 is arranged in a vertical downward state. After the self-clamping matching mechanism 3 is placed, its center is arranged corresponding to the center of the opening of the table portion in the welding stand 1, and is on the same vertical central axis as the self-clamping loading and unloading mechanism 5. The first pneumatic telescopic rod 7 is started to stretch and operate, so that the shell seat 6 moves downward in the frame cavity of the frame portion in the welding stand 1, even if the self-clamping matching mechanism 3 drives the auxiliary plate body in the hardware angle code piece and the main plate body in the hardware angle code piece in the self-clamping loading and unloading mechanism 5 to automatically assemble and dock;

[0080] Since an electric welder is fixedly installed on the left section of the plate in the welding stand 1 (the above electric welder is a prior art and is not described in detail in the drawings of the specification), after the hardware angle code is automatically positioned and assembled, manual welding is performed by the electric welder;

[0081] According to the above, when the hardware angle code is automatically unloaded after welding by the self-clamping loading and unloading mechanism 5, specifically, since the suction cup type electromagnet 2601 is fixedly installed on the longitudinal plate body of the clamping plate 26, the suction cup type electromagnet 2601 is started to operate, and the main plate body in the hardware angle code is adsorbed, and the double-headed cylinder 27 is started to stretch and operate, so that the left and right clamping plates 26 are slid and stretched on the shell frame 24 in opposite directions. After being adsorbed and fixed by the suction cup type electromagnet 2601, the two clamping plates 26 are stretched and slid and then pulled The two hardware corner code pieces are separated, and the auxiliary plate body and the clamping piece 14 in the hardware corner code piece are separated, and the first pneumatic telescopic rod 7 is started to shrink and operate, so that the shell seat 6 moves upward in the frame cavity of the frame portion in the welding stand 1, even if the self-clamping matching mechanism 3 is reset, the self-clamping loading and unloading mechanism 5 re-clamps and locks the welded hardware corner code piece, and the third pneumatic telescopic rod 25 is started to shrink and operate, so that the self-clamping loading and unloading mechanism 5 drives the welded hardware corner code piece to be reset to the conveying assembly 2, and the conveying assembly 2 automatically outputs it;

[0082] This is the entire working process of the high-precision welding mechanism capable of positioning and pairing. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0083] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0084] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision welding mechanism capable of positioning and pairing, comprising: A welding stand (1), wherein a conveying assembly (2) is fixedly mounted on both the front and rear sides of a frame portion of the welding stand (1), and the conveying assembly (2) is used for automatic fixed-point conveyance of hardware corner pieces; It is characterized by further comprising: A self-clamping pairing mechanism (3), the self-clamping pairing mechanism (3) is arranged in the middle of the frame cavity of the frame portion in the welding stand (1), and a feeding mechanism (4) for feeding the auxiliary plate body in the hardware angle code is arranged on both the left and right sides of the self-clamping pairing mechanism (3), the self-clamping pairing mechanism (3) is used for the self-clamping material taking and positioning operation of the auxiliary plate body in the hardware angle code, and it assists in the automatic assembly and docking operation of the auxiliary plate body in the hardware angle code to the main plate body; The self-clamping pairing mechanism (3) comprises a housing (6), a main push member (8), an auxiliary push member (10), a linkage tube (12) and a clamping member (14); the upper housing wall of the housing (6) is fixedly connected to the output end of the first pneumatic telescopic rod (7) by bolts, and the first pneumatic telescopic rod (7) is fixedly installed in the middle of the horizontal frame of the frame portion of the welding stand (1) by bolts; the main push member (8) is slidably connected in the middle housing cavity of the housing (6), and the middle block of the main push member (8) forms a sliding structure on the output rod body of the second pneumatic telescopic rod (9), and the second pneumatic telescopic rod (9) is fixedly installed in the upper housing cavity wall of the housing (6) by bolts; Wherein, an auxiliary push piece (10) is slidably connected in the lower seat cavity of the shell seat (6), and a first spring (11) is installed at the connection between the auxiliary push piece (10) and the shell seat (6), and through-shaped oblique grooves (1001) are provided on the front and rear side groove walls of the through groove in the auxiliary push piece (10); Wherein, the left and right side walls of the lower seat cavity of the shell seat (6) are telescopically and slidably connected to a linkage tube (12), and a second spring (13) is installed at the connection between the inner end of the linkage tube (12) and the shell seat (6), and a clamping piece (14) is rotatably connected to the outer end of the linkage tube (12), and a torsion spring (15) is installed at the connection between the clamping piece (14) and the linkage tube (12); Wherein, both front and rear sides of the inner end of the linkage tube (12) are provided with pin columns (1201) of an integrated structure, and the pin columns (1201) are connected to the oblique groove (1001) in a sliding manner; The linkage tube (12) forms a sliding structure on the auxiliary rod (17), and the middle section of the auxiliary rod (17) is fixedly connected to the lower seat cavity wall of the housing seat (6) by means of bolts, and a positioning groove (1701) is provided on the rod body portion of the auxiliary rod (17) close to the linkage tube (12), and a spiral groove group (1702) is provided on the rod body portion of the auxiliary rod (17) close to the clamping member (14); The feeding mechanism (4) comprises a silo tube (18), a first rack plate (19) and a second rack plate (20); the upper tube wall of the silo tube (18) is fixedly connected to the frame portion in the welding stand (1) by bolts, and the lower end of the silo tube (18) is placed outside the clamping member (14) in a cover-mounted state; the first rack plate (19) and the second rack plate (20) are slidably connected in sequence from top to bottom in the outer tube wall at the lower end of the silo tube (18), and the ends of the first rack plate (19) and the second rack plate (20) are connected to the auxiliary plate body in the hardware corner piece by overlapping and bonding. The first rack plate (19) is meshedly connected with the upper side of the gear column (21), and the lower side of the gear column (21) is meshedly connected with the second rack plate (20), and the gear column (21) is assisted by the shaft column to form a rotating structure in the groove cavity of the outward tube wall of the silo tube (18); The middle part of the first rack plate (19) facing outward is fixedly connected to the output end of the telescopic electromagnet (22) by means of bolts, and the telescopic electromagnet (22) is fixedly mounted on the outward tube wall of the silo tube (18) by means of bolts; Wherein, a fourth spring (23) is installed at the connection between the second rack plate (20) and the silo pipe (18); A self-clamping and loading and unloading mechanism (5) is arranged in the middle of a frame cavity of a frame part in a welding stand (1), and can perform a self-clamping and locking operation on a main body of a hardware angle code component, and is used for automatic feeding of the main body of a hardware angle code component and automatic unloading of the hardware angle code component after welding.

2. A high-precision welding mechanism capable of positioning and pairing according to claim 1, characterized in that: A circular pressure plate (901) is fixedly connected to the output rod body of the second pneumatic telescopic rod (9) by means of bolts, and the circular pressure plate (901) is connected to the main pushing member (8) in a sliding manner, and a third spring (16) is installed at the connection between the circular pressure plate (901) and the main pushing member (8); The left and right side blocks of the main push piece (8) are respectively connected to the auxiliary plates of the left and right hardware corner pieces by means of pushing and pressing.

3. A high-precision welding mechanism capable of positioning and pairing according to claim 2, characterized in that: The limiting ring in the second pneumatic telescopic rod (9) is connected to the transverse block of the auxiliary push member (10) by a push-fitting manner, and the maximum sliding distance of the auxiliary push member (10) is smaller than the maximum sliding distance of the circular pressure plate (901) on the main push member (8).

4. A high-precision welding mechanism capable of positioning and pairing according to claim 1, characterized in that: A first pin (1202) is fixedly connected to the tube body of the linkage tube (12), and the first pin (1202) is connected to the positioning groove (1701) in a sliding manner; The length of the positioning groove (1701) is the same as the length of the spiral groove group (1702), the spiral groove group (1702) and the second pin (1401) are connected in a sliding manner, and the second pin (1401) is clamped and fixedly connected to the clamping member (14) by bolts; The outward end of the clamp (14) is arranged in a conical structure, and the upper and lower sides of the clamp (14) are vertically provided with pressure plate portions of an integrated structure, and the pressure plate portion in the clamp (14) and the auxiliary plate body in the hardware corner piece are connected by a clamping and pressing method.

5. The high-precision welding mechanism capable of positioning and pairing according to claim 1, characterized in that: The self-clamping loading and unloading mechanism (5) comprises a shell frame (24) and a clamping plate (26), wherein the middle portion of the lower side wall of the shell frame (24) is fixedly connected to the output end of the third pneumatic telescopic rod (25) by means of bolts, and the third pneumatic telescopic rod (25) is fixedly mounted on the horizontal plate of the frame portion in the welding stand (1) by means of bolts, and the upper side wall of the shell frame (24) is connected to the main plate body in the hardware corner piece by means of overlapping and bonding; Wherein, the left and right sides of the shell frame (24) are both slidably connected with clamping plate members (26), and a double-headed cylinder (27) is fixedly installed in the frame cavity of the shell frame (24) by means of bolts, and the two output ends of the double-headed cylinder (27) are respectively fixedly connected to the bent ends of the transverse plates in the two clamping plate members (26) by means of bolts.

6. A high-precision welding mechanism capable of positioning and pairing according to claim 5, characterized in that: The sliding directions of the two clamping plates (26) in the shell frame (24) are opposite to each other, and the longitudinal plate body in the clamping plate (26) and the main plate body in the hardware corner piece are clamped and pressed together; Wherein, a suction cup type electromagnet (2601) is fixedly mounted on the longitudinal plate body in the clamping plate member (26).

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