Insertion piece silver spot welding equipment

Abstract

The invention discloses inserting piece silver point welding equipment which comprises a machine body, a working table, an inserting piece feeding mechanism, a silver point feeding mechanism, a positioning tool, a discharging mechanism and a welding mechanism. The positioning tool comprises a rack, a floating table, a buffer piece, a positioning table with positioning grooves, a plurality of side grooves, a plurality of clamping lugs, a plurality of movable clamping blocks with clamping grooves, a floating control mechanism and a position control mechanism. The floating control mechanism controls the movable clamping blocks to stretch into the side grooves, the clamping grooves are clamped with the corresponding clamping lugs, the position limiting mechanism fixes the floating control mechanism, the limiting mechanism and the movable clamping blocks are fixed, and therefore installation of the positioning table is completed. The buffer part absorbs tiny vibration generated in the welding process and displacement generated by the positioning table when the workpiece is heated and deformed.

Description

Technical Field

[0001] The invention relates to a plug-in assembly device, in particular to a plug-in silver spot welding device. Background Art

[0002] The plug is a component of an electrical connector. Silver points usually refer to the contact points of the plug or socket, which are made of silver. Silver has good conductivity, can reduce contact resistance, and reduce the heat generated when current passes through. Silver points are usually welded on the contact points of the plug using silver point welding equipment, for example: The Chinese invention patent with announcement number CN113458662B discloses an automated device for contact welding, which is provided with a turntable mechanism and four positioning fixtures, so that the four positioning fixtures pass through the sheet metal feeding mechanism, the contact feeding mechanism, the welding mechanism and the unloading mechanism in sequence, so as to realize the process of sheet metal feeding-electric contact feeding-contact welding-plate armor unloading. The grooves on the positioning fixtures are adapted to the corresponding workpieces. When other types of workpieces need to be processed, the positioning fixtures with different grooves need to be replaced. The defects are as follows: 1. The positioning fixture has no buffer structure. The slight vibration generated during welding and the thermal expansion deformation of the workpiece will cause deformation of the workpiece or cracks in the welded joint; 2. The positioning tooling has a complex structure and high cost, and is inconvenient to disassemble and assemble, which is not conducive to the rapid replacement of different positioning tooling, affecting production efficiency. Summary of the invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art.

[0004] The present application provides a plug-in silver spot welding device, including a machine body, a work surface, a plug-in feeding mechanism, a silver spot feeding mechanism, a positioning tool, a feeding mechanism and a welding mechanism, wherein the positioning tool includes: A stand, which is fixed on the top of the work surface; A floating table, which can be floated and mounted on the top of the table through a buffer; A positioning table, which is detachably mounted on the top of the floating table and has a positioning slot; A plurality of side grooves are symmetrically spaced at the front and rear ends of the two side walls of the positioning platform; A plurality of latches are respectively fixed on the inner side walls of each side groove; A plurality of movable clamping blocks are respectively mounted on the positioning platform through corresponding floating grooves, corresponding to each side groove, and each has a clamping groove that can be engaged with a corresponding clamping ear; A floating control mechanism, which is used to control each movable card block to extend into the corresponding side slot and descend until each card ear is engaged with the corresponding card slot; The position control mechanism is used to lock / unlock the floating control mechanism.

[0005] The floating control mechanism includes: A plurality of lifting shells, the bottom ends of which pass through corresponding lower through slots to exit the floating slot; A plurality of floating shells are respectively fixed on the top of the corresponding lifting shells, with a movable groove on the top and a return spring between the bottom of the floating groove away from the corresponding lower through groove; A plurality of transmission units are used to make each movable block extend into the corresponding side groove as the floating shell descends; The lifting control device is used to control the descent of each lifting shell.

[0006] The transmission unit includes: A pair of transverse grooves are symmetrically arranged on both sides of the lifting shell; A pair of transmission inclined grooves are symmetrically arranged on the inner walls of opposite sides of the side groove, close to the lower through groove end and lower than the other end; A pair of transmission blocks are symmetrically fixed on the bottom of the opposite side walls of the movable clamping block and are respectively slidably matched with the corresponding transverse grooves and the transmission inclined grooves.

[0007] The lifting control device includes: A pair of connecting rods are respectively fixed between the lower ends of the front pair of floating shells and the lower ends of the rear pair of floating shells; The push frame is movably arranged at the bottom of the floating platform, and both front and rear ends of the two side walls are provided with lifting control inclined grooves; Wherein, each connecting rod is slidably installed in each lifting control inclined groove.

[0008] The position control mechanism includes: A sliding cavity is arranged in the floating platform, connected with each lower through groove, and has an open front end; A plurality of limiting grooves are respectively arranged on the top of the side wall of each lifting shell close to the open end of the sliding cavity; A slide plate is slidably mounted in the slide cavity, with an outer end extending out of the slide cavity and a plurality of outward push springs arranged between the inner end and the inner end of the slide cavity; A plurality of floating engaging members are respectively slidably mounted in the inner cavity of each lifting shell, can be engaged with the corresponding limiting groove, and are fixedly connected with the side wall of the slide plate.

[0009] Floating snap-fit ​​parts include: A fixed frame, which is fixed on the side wall of the slide plate; The flip card block is rotatably mounted in the fixed frame via a rotating shaft, and a torsion spring is provided between the flip card block and the rotating shaft; A limiting rod is fixedly arranged on the top of the inner cavity of the fixed frame and close to one side of the limiting groove; The rotating shaft is fixedly connected to the inner cavity of the fixed frame, and the torsion spring is used to make the flipping block flip upward toward the end of the limiting groove.

[0010] The position control mechanism also includes: A plurality of inclined guide blocks are respectively fixed on the top of the inner cavity of each lifting shell, and the top surface is flush with the bottom surface of the limiting groove.

[0011] Buffer parts include: A plurality of slide bars are fixedly mounted at the four corners of the top surface of the frame, and the top ends thereof moveably pass through the floating platform; A plurality of buffer springs are respectively sleeved on each slide rod, and the top end and the bottom end thereof are respectively in contact with the top surface of the frame and the bottom surface of the floating platform.

[0012] The unloading mechanism includes: A feeding pipe is fixedly arranged on the top of the machine body and located in front of the floating platform, with the lower end extending out of the machine body and the upper end being lower than the floating platform; A support plate is fixed on the rear side wall of the floating platform, and a push cylinder is fixed on the top; The push rod is fixedly connected to the outer end of the piston of the push cylinder and can extend into the positioning groove.

[0013] Both the insert feeding mechanism and the silver point feeding mechanism include: The vibration plate is fixed on the left or right end of the work surface; The feeding slideway is installed between the vibration plate and the floating platform through a bracket and is connected with the discharge port of the vibration plate; The clamping device is used to grab the insert or silver point on the feeding slide and move it through the moving mechanism; Among them, the clamping device is a mechanical claw or a suction cup, the moving mechanism is a transverse sliding table driven by a cylinder, and the moving mechanism in the insert feeding mechanism also includes a lifting platform driven by a cylinder.

[0014] The beneficial effects of the present invention are as follows: 1. Through the setting of the stand, floating table, positioning table, positioning groove and buffer room, the slight vibration generated during welding and the deformation of the workpiece due to thermal expansion and deformation are absorbed to avoid deformation of the workpiece or cracks in the welding joint, and to improve the welding yield rate of the silver point of the insert; 2. Through the arrangement of the positioning platform, the floating platform, several side grooves, several carders, several movable card blocks, the floating control mechanism and the position control mechanism, the positioning platform and the floating platform can be detachably connected. If silver spot welding of different inserts is required, only the positioning platform needs to be replaced, which is convenient for disassembly and assembly and low in cost; 3. Through the arrangement of a plurality of lifting shells, a plurality of floating shells, a plurality of movable grooves, a plurality of floating springs, a plurality of transverse grooves, a plurality of transmission inclined grooves, a plurality of transmission blocks, a pair of connecting rods, a push frame and a plurality of lifting control inclined grooves, in cooperation with a position control mechanism, it is only necessary to press the push frame in the direction of the positioning groove to control each movable card block to be inserted into the side groove, and each card slot is engaged with the corresponding card ear. The position control mechanism fixes each lifting shell to keep each movable card block in the above position, or operates the position control mechanism to release the restrictions on each lifting shell, and each movable card block is separated from the corresponding side groove, and each card slot is separated from the corresponding card ear, thereby improving the disassembly and assembly speed of the positioning table, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the insert silver spot welding device in the embodiment of the present application; Figure 2 This is a three-dimensional diagram of the structure above the work surface in the embodiment of the present application; Figure 3 This is a three-dimensional diagram of the positioning tooling in the embodiment of the present application; Figure 4 This is a three-dimensional diagram of the cooperation state of the floating platform and the positioning platform in the embodiment of the present application (the positioning platform is placed on the floating platform); Figure 5 This is a three-dimensional diagram of the cooperation state of the floating platform and the positioning platform in the embodiment of the present application (the positioning platform and the floating platform are separated); Figure 6 A three-dimensional diagram of a floating platform in an embodiment of the present application (cut apart); Figure 7 This is a three-dimensional diagram of the internal structure of the lifting shell in the embodiment of the present application; Figure 8 A top view of the floating platform and the positioning platform in the embodiment of the present application; Fig. 9 for Figure 8 Schematic diagram of the cross-section structure along the AA direction.

[0016] Reference numerals 1-machine body, 2-working table, 3-insert feeding mechanism, 4-silver point feeding mechanism, 341-vibration plate, 342-feeding slide, 343-clamping device, 344-moving mechanism, 5-positioning tooling, 51-stand, 52-floating table, 53-buffer, 531-slide bar, 532-buffer spring, 54-positioning table, 55-positioning groove, 56-side groove, 57-card ear, 58-movable card block, 59-floating groove, 510-card slot, 6-unloading mechanism, 61-unloading pipe, 62-support plate, 63-push cylinder, 64-push rod, 7-welding Mechanism, 8-floating control mechanism, 81-lifting shell, 82-lower through slot, 83-floating shell, 84-movable slot, 85-reset spring, 86-transmission unit, 861-transverse through slot, 862-transmission inclined slot, 863-transmission block, 87-lifting control device, 871-connecting rod, 872-sliding frame, 873-lifting control inclined slot, 9-position control mechanism, 91-sliding cavity, 92-limiting slot, 93-slide plate, 94-external push spring, 95-floating clamp, 951-fixed frame, 952-flipping block, 953-limiting rod, 96-oblique guide block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0018] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0019] The insert silver spot welding device provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0020] Embodiment 1: like Figures 1 to 9 As shown, the embodiment of the present application provides a plug-in silver spot welding device, including a body 1, a work surface 2, a plug-in feeding mechanism 3, a silver spot feeding mechanism 4, a positioning tool 5, a feeding mechanism 6 and a welding mechanism 7, wherein the positioning tool 5 includes a stand 51, which is fixed on the top of the work surface 2; a floating platform 52, which can be floated on the top of the stand 51 through a buffer 53; a positioning platform 54, which can be detachably mounted on the top of the floating platform 52 and has a positioning groove 55; and a plurality of side grooves 56, which are symmetrically spaced on the positioning platform 54. The front and rear ends of the two side walls; a number of ears 57, respectively fixed on the inner walls of each side groove 56; a number of movable blocks 58, respectively installed on the positioning platform 54 through corresponding floating grooves 59, corresponding to each side groove 56, all with a slot 510 that can be engaged with the corresponding ear 57; a floating control mechanism 8, which is used to control each movable block 58 to extend into the corresponding side groove 56 and descend until each ear 57 is engaged with the corresponding slot 510; a position control mechanism 9, which is used to lock / unlock the floating control mechanism 8.

[0021] Furthermore, the buffer member 53 includes a plurality of slide bars 531, which are respectively fixed at the four corners of the top surface of the stand 51, and the top ends thereof move through the floating platform 52; a plurality of buffer springs 532, which are respectively mounted on each slide bar 531, and the top ends and the bottom ends thereof respectively abut against the top surface of the stand 51 and the bottom surface of the floating platform 52.

[0022] Furthermore, the unloading mechanism 6 includes a unloading pipe 61, which is fixed on the top of the machine body 1 and located on the front side of the floating platform 52, with the lower end extending out of the machine body 1 and the upper end lower than the floating platform 52; a support plate 62, which is fixed on the rear side wall of the floating platform 52 and has a pushing cylinder 63 fixed on the top; a pushing rod 64, which is fixedly connected to the outer end of the piston of the pushing cylinder 63 and can be extended into the positioning groove 55.

[0023] Furthermore, the insert feeding mechanism 3 and the silver dot feeding mechanism 4 both include a vibration plate 341, which is fixed at the left end or the right end of the work table 2; a feeding slide 342, which is mounted between the vibration plate 341 and the floating platform 52 through a bracket and is connected to the discharge port of the vibration plate 341; a clamping device 343, which is used to grab the insert or silver dot on the feeding slide 342 and is moved by a moving mechanism 344. The clamping device 343 is a mechanical claw or a suction cup, and the moving mechanism 344 is a transverse sliding table driven by a cylinder. The moving mechanism 344 in the insert feeding mechanism 3 also includes a lifting platform driven by a cylinder.

[0024] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the insert is discharged from the discharge port of the corresponding vibration plate 341, and is transferred to the clamping position of the corresponding clamping device 343 through the corresponding feeding chute 342. The corresponding transverse sliding table and the lifting table move under the drive of the corresponding cylinder, so that the corresponding clamping device 343 approaches and clamps the insert at the end of the feeding chute 342 away from the vibration plate 341 and transfers it to the positioning groove 55. The corresponding clamping device 343 maintains the clamping of the insert, and the silver dot is discharged from the discharge port of the corresponding vibration plate 341, and is transferred to the clamping position of the corresponding clamping device 343 through the corresponding feeding chute 342. The movable table moves under the drive of the corresponding cylinder, transfers the silver point to the top of the insert and then moves away from the insert, and then the welding mechanism 7 is activated to weld the silver point to the insert. The vibration generated during this period and the deformation generated when the insert and the silver point expand due to heat will cause the floating table 52 to float along the extension direction of the slide bar 531. The floating spring provides floating support for the floating table 52. After the silver point welding action is completed, the clamping device 343 corresponding to the insert releases the insert, and the push cylinder 63 is activated to make the push rod 64 extend into the positioning groove 55, and the insert with the silver point welded in the positioning groove 55 is pushed into the discharge pipe 61, and is discharged from the lower end of the discharge pipe 61 and falls into a container placed outside the machine body 1; When it is necessary to replace the positioning platform 54, operate the position control mechanism 9 to release the restriction on the floating control mechanism 8, and the floating control mechanism 8 drives each active block 58 to rise and disengage from the corresponding side groove 56, until each active block 58 is completely disengaged from the corresponding side groove 56, and each slot 510 is also disengaged from the corresponding ear 57, then the positioning platform 54 can be removed from the top of the floating platform 52, and then the new positioning platform 54 is placed on the top of the floating platform 52, so that each side groove 56 corresponds to the corresponding floating groove 59, and operate the floating control mechanism 8 to make each active block 58 obliquely inserted into the corresponding side groove 56, until the inner side wall of each active block 58 is tightly against the inner end side wall of the corresponding side groove 56, and each slot 510 is also engaged with the corresponding ear 57, and then the position control mechanism 9 restricts the floating control mechanism 8 so that it cannot move, and the replacement of the positioning platform 54 is completed.

[0025] Embodiment 2: like Figures 4 to 9 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the floating control mechanism 8 includes a plurality of lifting shells 81, the bottom ends of which pass through the floating groove 59 through the corresponding lower through grooves 82; a plurality of floating shells 83, which are respectively fixed on the top of the corresponding lifting shells 81, and are provided with movable grooves 84 on the tops, and reset springs 85 are provided between the bottom of the floating groove 59 and the side away from the corresponding lower through grooves 82; a plurality of transmission units 86, which are used to make each movable block 58 extend into the corresponding side groove 56 when the floating shell 83 descends; and a lifting control device 87, which is used to control the descent of each lifting shell 81.

[0026] Furthermore, the transmission unit 86 includes a pair of transverse grooves 861, which are symmetrically arranged on both sides of the lifting shell 81; a pair of transmission inclined grooves 862, which are symmetrically arranged on the opposite inner walls of the side grooves 56, close to the end of the lower groove 82 and lower than the other end; a pair of transmission blocks 863, which are symmetrically fixed at the bottom of the opposite side walls of the movable clamping block 58, and slideably cooperate with the corresponding transverse grooves 861 and the transmission inclined grooves 862 respectively.

[0027] Furthermore, the lifting control device 87 includes a pair of connecting rods 871, which are respectively fixed between the lower ends of a pair of floating shells 83 on the front side and the lower ends of a pair of floating shells 83 on the rear side; a sliding frame 872, which is movably arranged at the bottom of the floating platform 52, and lifting control inclined grooves 873 are provided at the front and rear ends of both side walls, and each connecting rod 871 is slidably installed in each lifting control inclined groove 873.

[0028] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when it is necessary to lower each lifting shell 81, the push frame 872 is pressed toward the direction close to the positioning platform 54, so that each connecting rod 871 slides from the upper end of the corresponding lifting control inclined groove 873 to the lower end of the corresponding lifting control inclined groove 873. At this time, the height of each connecting rod 871 decreases, and the height of each lifting shell 81, each floating shell 83 and each movable block 58 also decreases. At the same time, each transmission block 863 moves away from the corresponding transmission inclined groove 862 and the corresponding transverse groove 861. The end of each movable block 58 slides toward one end close to the side groove 56, and each movable block 58 slides into the corresponding side groove 56 in the corresponding movable groove 84. Each movable block 58 is gradually inserted into the corresponding side groove 56, and each slot 510 is also gradually engaged with the corresponding ear 57, until the inner side wall of each movable block 58 is tightly pressed against the inner end side wall of the corresponding side groove 56. At this time, the inner end of each slot 510 is also tightly pressed against the corresponding ear 57, and each return spring 85 is compressed to store elastic potential energy. The position control mechanism 9 fixes the position of each lifting shell 81, and the positioning platform 54 is fixed; When it is necessary to raise each lifting shell 81, the operating position control mechanism 9 releases the fixation of each lifting shell 81, and each reset spring 85 releases elastic potential energy to push each lifting shell 81 up, driving each connecting rod 871 to slide from the lower end to the upper end of the corresponding inclined groove, pushing the outer end of the push frame 872 to extend out from under the floating platform 52, and the height of each lifting shell 81, each floating shell 83 and each movable block 58 also rises. At the same time, each transmission block 863 slides toward the end of the corresponding transmission inclined groove 862 and the corresponding transverse groove 861 away from the side groove 56, and each transmission block 863 slides toward the end of the corresponding movable groove 84 away from the corresponding side groove 56. Each movable block 58 gradually disengages from the corresponding side groove 56, and each card slot 510 gradually disengages from the corresponding ear 57.

[0029] Embodiment 3: like Figures 6 to 9 As shown, in the present embodiment, in addition to the structural features of the aforementioned embodiments, the position control mechanism 9 includes a sliding cavity 91, which is arranged in the floating platform 52, connected to each lower through groove 82, and open at the front end; a plurality of limiting grooves 92, respectively arranged at the top of the side wall of each lifting shell 81 close to the open end of the sliding cavity 91; a slide plate 93, which is slidably installed in the sliding cavity 91, with the outer end extending out of the sliding cavity 91, and a plurality of outward thrust springs 94 are provided between the inner end and the inner end of the sliding cavity 91; a plurality of floating engaging members 95, which can be slidably installed in the inner cavity of each lifting shell 81, can be engaged with the corresponding limiting grooves 92, and are fixedly connected to the side wall of the slide plate 93.

[0030] Furthermore, the floating engaging member 95 includes a fixed frame 951, which is fixed on the side wall of the slide plate 93; a flip block 952, which is rotatably installed in the fixed frame 951 through a rotating shaft, and a torsion spring is provided between the rotating shaft; a limiting rod 953, which is fixed on the top of the inner cavity of the fixed frame 951 close to the limiting groove 92, the rotating shaft is fixedly connected to the inner cavity of the fixed frame 951, and the torsion spring is used to flip the flip block 952 upward toward the end of the limiting groove 92.

[0031] Furthermore, the position control mechanism 9 also includes a plurality of inclined guide blocks 96 , which are respectively fixed on the top of the inner cavity of each lifting shell 81 , and the top surface is flush with the bottom surface of the limiting groove 92 .

[0032] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when each lifting shell 81 descends, the associated limiting grooves 92 and the inclined guide blocks 96 descend simultaneously, and each inclined guide block 96 first contacts the side wall of each fixed frame 951. During the descending process of each inclined guide block 96, each fixed frame 951 and the slide plate 93 are pushed to move toward the inner end of the sliding cavity 91, and the outward push spring 94 is compressed and shortened. The torsion spring releases its elastic potential energy to cause each flip block 952 to flip upward toward one end of the limiting groove 92 until it contacts the limiting rod 953, until each limiting groove 92 descends to the same horizontal height as each flip block 952, and the outward push spring 94 releases its elastic potential energy to push the slide plate 93 and each fixed frame 951 toward the outside of the sliding cavity 91 Slide so that each flip block 952 is inserted into the corresponding limiting groove 92. A notch is provided on each fixed frame 951, which accommodates each inclined guide block 96 at this time. When each lifting shell 81 needs to rise, the slide plate 93 is pushed into the sliding cavity 91 to make each flip block 952 disengage from the corresponding limiting groove 92, and each notch is separated from each inclined guide block 96. Each lifting shell 81 rises under the push of the corresponding reset spring 85, and the slider is released. Each outward push spring 94 releases elastic potential energy, pushing each fixed frame 951 and each flip block 952 to move in the direction of the limiting groove 92, and each flip block 952 rubs against the inner wall of the corresponding lifting shell 81. When each lifting shell 81 descends, due to the existence of friction, the flip block 952 will flip downward.

[0033] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0034] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A plug-in silver spot welding device, comprising a body (1), a work surface (2), a plug-in feeding mechanism (3), a silver spot feeding mechanism (4), a positioning tool (5), a feeding mechanism (6) and a welding mechanism (7), characterized in that: The positioning tool (5) comprises: A stand (51) fixedly mounted on the top of the work surface (2); A floating platform (52) which is floatably mounted on the top of the platform (51) via a buffer (53); A positioning platform (54) which is detachably mounted on the top of the floating platform (52) and has a positioning groove (55); A plurality of side grooves (56) symmetrically spaced at the front and rear ends of the two side walls of the positioning platform (54); A plurality of latches (57) are respectively fixed on the inner side walls of the side grooves (56); A plurality of movable clamping blocks (58) are respectively mounted on the positioning platform (54) through corresponding floating grooves (59), corresponding to the side grooves (56), and each has a clamping groove (510) that can be engaged with a corresponding clamping ear (57); A floating control mechanism (8) for controlling each of the movable clamping blocks (58) to extend into the corresponding side groove (56) and descend until each clamping ear (57) is engaged with the corresponding clamping groove (510); A position control mechanism (9) is used to lock / unlock the floating control mechanism (8).

2. The insert silver spot welding device according to claim 1, characterized in that: The floating control mechanism (8) comprises: A plurality of lifting shells (81), the bottom ends of which pass through corresponding lower through slots (82) and out of the floating slot (59); A plurality of floating shells (83) are respectively fixedly mounted on the top of the corresponding lifting shell (81), with a movable groove (84) being provided on the top and a return spring (85) being provided between the bottom of the floating groove (59) away from the corresponding lower through groove (82); A plurality of transmission units (86) for causing each of the movable blocks (58) to extend into a corresponding side groove (56) as the floating shell (83) descends; The lifting control device (87) is used to control the descent of each lifting shell (81).

3. The insert silver spot welding device according to claim 2, characterized in that: The transmission unit (86) comprises: A pair of transverse grooves (861) symmetrically arranged on both sides of the lifting shell (81); A pair of transmission inclined grooves (862) are symmetrically arranged on the inner walls of opposite sides of the side groove (56), with one end close to the lower through groove (82) lower than the other end; A pair of transmission blocks (863) are symmetrically fixed on the bottom of the opposite side walls of the movable clamping block (58) and are respectively slidably matched with the corresponding transverse grooves (861) and the transmission inclined grooves (862).

4. The insert silver spot welding device according to claim 2, characterized in that: The lifting control device (87) comprises: A pair of connecting rods (871) are respectively fixed between the lower ends of the front pair of floating shells (83) and the lower ends of the rear pair of floating shells (83); A push frame (872) is movably arranged at the bottom of the floating platform (52), and both front and rear ends of the two side walls are provided with lifting control inclined grooves (873); Wherein, each of the connecting rods (871) is slidably mounted in each of the lifting control inclined grooves (873).

5. The insert silver spot welding device according to claim 2, characterized in that: The position control mechanism (9) comprises: A sliding cavity (91) is arranged in the floating platform (52), communicated with each lower through groove (82), and has an open front end; A plurality of limiting grooves (92) are respectively arranged on the top of the side wall of each lifting shell (81) close to the open end of the sliding cavity (91); A slide plate (93) is slidably mounted in the slide cavity (91), with an outer end extending out of the slide cavity (91) and a plurality of outward push springs (94) disposed between the inner end and the inner end of the slide cavity (91); A plurality of floating engaging members (95) are slidably mounted in the inner cavity of each lifting shell (81), can be engaged with the corresponding limiting groove (92), and are fixedly connected to the side wall of the slide plate (93).

6. The insert silver spot welding device according to claim 5, characterized in that: The floating engaging member (95) comprises: A fixed frame (951) fixedly mounted on a side wall of the slide plate (93); A flipping clamping block (952) is rotatably mounted in the fixed frame (951) via a rotating shaft, and a torsion spring is provided between the flipping clamping block and the rotating shaft; A limiting rod (953) fixedly mounted on a side of the top of the inner cavity of the fixing frame (951) close to the limiting groove (92); The rotating shaft is fixedly connected to the inner cavity of the fixed frame (951), and the torsion spring is used to make the flip block (952) flip upwards towards the end of the limiting groove (92).

7. The insert silver spot welding device according to claim 6, characterized in that: The position control mechanism (9) further comprises: A plurality of inclined guide blocks (96) are respectively fixedly mounted on the top of the inner cavity of each lifting shell (81), and the top surface is flush with the bottom surface of the limiting groove (92).

8. The insert silver spot welding device according to claim 1, characterized in that: The buffer member (53) comprises: A plurality of sliding rods (531) are respectively fixed at the four corners of the top surface of the frame (51), and the top ends thereof movably pass through the floating platform (52); A plurality of buffer springs (532) are respectively sleeved on the slide bars (531), with the top and bottom ends thereof respectively abutting against the top surface of the stand (51) and the bottom surface of the floating platform (52).

9. The insert silver spot welding device according to claim 1, characterized in that: The unloading mechanism (6) comprises: A feed pipe (61) fixedly mounted on the top of the machine body (1) and located in front of the floating platform (52), with its lower end extending out of the machine body (1) and its upper end being lower than the floating platform (52); A support plate (62) is fixedly mounted on the rear side wall of the floating platform (52), and a material pushing cylinder (63) is fixedly mounted on the top; A push rod (64) is fixedly connected to the outer end of the piston of the push cylinder (63) and can extend into the positioning groove (55).

10. The insert silver spot welding device according to claim 1, characterized in that: The insert feeding mechanism (3) and the silver dot feeding mechanism (4) both comprise: A vibration plate (341) is fixedly mounted on the left end or the right end of the work surface (2); A feeding slideway (342) is installed between the vibration plate (341) and the floating platform (52) via a bracket and is connected to the discharge port of the vibration plate (341); A clamping device (343) is used to grab the insert or silver dot on the feeding slideway (342) and is moved by a moving mechanism (344); The clamping device (343) is a mechanical claw or a suction cup, the moving mechanism (344) is a transverse sliding table driven by a cylinder, and the moving mechanism (344) in the insert feeding mechanism (3) further includes a lifting platform driven by a cylinder.

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