Automatic assembly device for temperature fuse

Abstract

The invention discloses an automatic assembly device for temperature fuses, comprising a slide rail assembly and a carrier transverse movement assembly arranged on the slide rail assembly, wherein a clamp is arranged on the carrier transverse movement assembly; a fuse shell feeding mechanism, a hot melt feeding mechanism, a first gasket stamping feeding mechanism, a coarse spring feeding mechanism, a second gasket stamping feeding mechanism, a contact piece stamping feeding mechanism, a fine spring feeding mechanism and a packaging mechanism are arranged in sequence along the moving direction of the clamp; the packaging mechanism also comprises a ceramic feeding mechanism, an upper lead feeding mechanism, a sealing limit mechanism and a product unloading mechanism which are arranged on the outer side of the turntable mechanism and along the rotation direction, the sealing limit mechanism is used for grabbing and flipping the sealing assembly and pressing it into the fuse shell to complete the finished product assembly; the product unloading mechanism is used for classifying the unloading finished products; the whole process is automatically assembled, and some processing structures are integrated to realize the simultaneous assembly of multiple temperature fuses, thereby improving the automatic assembly efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of thermal fuse assembly, and in particular to an automatic thermal fuse assembly device. Background Art

[0002] Thermal fuses are temperature sensing circuit cut-off devices. Thermal fuses can sense overheating caused by abnormal operation of electrical and electronic products, thereby cutting off the circuit to avoid fire. Figure 1 As shown, the temperature fuse includes a fuse shell and a hot melt installed in the fuse shell, a first gasket, a thick spring, a second gasket, a contact piece, a thin spring, an insulator and an upper lead. Automatically assembling in sequence according to the structure can improve the assembly efficiency. However, in the current assembly method, some of the components are assembled in sequence after processing, and the assembly quantity is limited each time, so the overall automatic assembly efficiency is low. Summary of the invention

[0003] The object of the present invention is to provide an automatic assembly device for a temperature fuse, which can automatically assemble the entire process and integrate some processing structures to realize simultaneous assembly of multiple temperature fuses and improve the efficiency of automatic assembly.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A temperature fuse automatic assembly device comprises a slide rail assembly and a carrier transverse movement assembly arranged on the slide rail assembly, wherein the carrier transverse movement assembly is provided with a fixture; a fuse shell feeding mechanism, a hot melt feeding mechanism, a first gasket stamping feeding mechanism, a coarse spring feeding mechanism, a second gasket stamping feeding mechanism, a contact piece stamping feeding mechanism, a fine spring feeding mechanism and a packaging mechanism are arranged in sequence along the moving direction of the fixture; the fuse shell feeding mechanism is used to convey the fuse shell of the temperature fuse and cut and separate the materials; the hot melt feeding mechanism is used to convey the hot melt and place it in the fuse shell; the first gasket stamping feeding mechanism is used to stamp and form the first gasket and place it in the fuse shell; the coarse spring feeding mechanism is used to convey the coarse spring and place it in the fuse shell; the second gasket stamping feeding mechanism is used to stamp and form the second gasket; The contact piece stamping feeding mechanism is used to stamp out the contact piece and place it in the fuse shell; the thin spring feeding mechanism is used to convey the thin spring and place it in the fuse shell; the packaging mechanism includes a turntable mechanism and a plurality of sealing fixture assemblies arranged along the rotation direction of the turntable mechanism, and the packaging mechanism also includes a ceramic feeding mechanism, an upper lead feeding mechanism, a sealing limit mechanism and a product unloading mechanism which are arranged outside the turntable mechanism and along the rotation direction; the ceramic feeding mechanism conveys the insulator to the sealing fixture assembly, the upper lead feeding mechanism is used to convey the upper lead and insert the insulator to form a sealing assembly; the sealing limit mechanism is used to grab and flip the sealing assembly and press it into the fuse shell to complete the finished product assembly; the product unloading mechanism is used to classify the unloaded finished products.

[0006] Preferably, it also includes detection mechanisms respectively arranged at the downstream end of the hot melt feeding mechanism, the first gasket stamping feeding mechanism, the coarse spring feeding mechanism, the second gasket stamping feeding mechanism, the contact piece stamping feeding mechanism, the fine spring feeding mechanism, the ceramic feeding mechanism, the upper lead feeding mechanism and the product unloading mechanism.

[0007] Preferably, the fuse shell feeding mechanism includes a shunt bracket and a plurality of first flow channels arranged in the shunt bracket, and the plurality of first flow channels correspond one-to-one to the positioning holes on the fixture; a cutting block is slidably installed on the shunt bracket, and the cutting block is provided with a plurality of cutting grooves, and the cutting grooves correspond one-to-one to the first flow channels; a slidable fuse shell limiting plate is also provided on the shunt bracket, and a first cylinder is connected to the cutting block; a sensor for detecting a fuse shell falling onto the fixture is also provided at the bottom of the shunt bracket; and it also includes a first direct vibration for conveying the fuse shell to the cutting block and a first circular vibration disk for conveying the fuse shell to the first direct vibration.

[0008] Preferably, the hot melt feeding mechanism includes a second circular vibration plate and a second direct vibration, a second cylinder for transverse movement and a grabbing bracket installed on the second cylinder are provided above the end of the second direct vibration, a third cylinder and a lifting frame connected to the third cylinder are installed on the grabbing bracket, a suction nozzle corresponding to the positioning holes on the clamp is installed on the lifting frame, and a sensor is also provided on the lifting frame; a guide sleeve for guiding the hot melt to fall is also provided at the end of the second direct vibration.

[0009] Preferably, the contact sheet stamping feeding mechanism includes a sheet feeding mechanism and a stamping mechanism, the stamping mechanism includes a fourth cylinder which can move laterally, the fourth cylinder is provided with a stripping slide and a fifth cylinder which is provided on the stripping slide, the fifth cylinder is provided with a stamping fixing plate, the stamping fixing plate is provided with shell entry pressure heads which correspond one to one with the positioning holes on the fixture and a punching needle which can extend out of the shell entry pressure head; the stripping slide is provided with a receiving plate which corresponds to the shell entry pressure head, the receiving plate is provided with a forming punching hole.

[0010] Preferably, the fine spring feeding mechanism includes a support frame and a plurality of drop tubes arranged on the support frame, and the drop tubes correspond to the positioning holes on the clamp one by one; the support frame is provided with a sixth cylinder which can move laterally and a seventh cylinder installed on the sixth cylinder, and a drop block is installed on the seventh cylinder, and a drop opening corresponding to the drop tube is opened on the drop block, and a first limit ejector cylinder for stopping the fine spring from falling into the drop opening is provided on the drop block; a second limit ejector cylinder for stopping the fine spring from falling into the drop tube is installed on the support frame; a sensor for detecting the drop state of the fine spring is installed on the support frame; and it also includes a third circular vibration plate for conveying the fine spring to the drop opening.

[0011] Preferably, the ceramic feeding mechanism includes a ceramic feeding bracket and a hopper longitudinally slidably mounted on the ceramic feeding bracket, and a plurality of ceramic material tubes extending into the hopper are installed on the ceramic feeding bracket at intervals; a rotating seat and a lever rotatably mounted on the rotating seat are installed on the ceramic feeding bracket, and one end of the lever is rotatably connected to the hopper; a driving motor and an eccentric wheel installed on the driving motor are installed on the ceramic feeding bracket, and the eccentric wheel is provided with a roller rollingly matched with the other end of the lever; a third limiting ejector cylinder for stopping the insulator falling into the ceramic material tube is installed on the ceramic feeding bracket.

[0012] Preferably, the upper lead feeding mechanism includes an upper lead bracket and a sliding plate slidably mounted on the upper lead bracket, a fourth circular vibration disk and a third direct vibration disk are mounted on the sliding plate, an eighth cylinder is mounted on the upper lead bracket, and the eighth cylinder is used to push or pull the sliding plate to move; an upper lead cache rail is mounted on the upper lead bracket, a pull plate with a limited upper lead is mounted at the end of the upper lead cache rail, and a ninth cylinder for driving the pull plate is mounted at the end of the upper lead cache rail; a sliding channel corresponding to the positioning holes of the sealing clamp assembly is provided on the upper lead cache rail; sensors are provided at the feeding end and the discharging end of the upper lead cache rail.

[0013] Preferably, the sealing limit mechanism includes a packaging support seat and a support column installed on the packaging support seat, the support column is equipped with a tenth cylinder, and the tenth cylinder is equipped with a pressure plate corresponding to the clamp; the packaging support seat is equipped with a packaging limit plate for limiting the sealing clamp assembly; it also includes a telescopic electric cylinder located below the support seat and a lower top plate installed on the telescopic electric cylinder, and the telescopic electric cylinder is equipped with a servo motor.

[0014] Preferably, the product unloading mechanism includes a unloading support seat, on which is mounted an eleventh cylinder located above the sealing clamp assembly, on which is mounted an air blow plate, on which is mounted an air nozzle; the unloading support seat is mounted a material receiving trough located below the clamp and a twelfth cylinder for pushing the material receiving trough to slide; a product material dividing trough and a waste material hopper are provided below the material receiving trough; and a finished product material frame is placed below the product material dividing trough.

[0015] Beneficial effects:

[0016] The entire automatic assembly device is arranged in sequence according to the assembly order of the temperature fuse, and the clamp is moved and adjusted by the carrier transverse movement component. At the same time, multiple positioning holes are set on the clamp to assemble multiple temperature fuses at one time, forming a continuous flow of multiple batches and multiple numbers of assembly lines;

[0017] Then, the assembly process is carried out in sequence. The fuse shell is pre-placed on the fixture for positioning by the fuse shell feeding mechanism, the hot melt is placed into the fuse shell by the hot melt feeding mechanism, the first gasket is stamped and formed by the first gasket stamping feeding mechanism and placed into the fuse shell, the coarse spring is placed into the fuse shell by the coarse spring feeding mechanism, the second gasket is stamped and formed by the second gasket stamping feeding mechanism and placed into the fuse shell, the contact piece is stamped and formed by the contact piece stamping feeding mechanism and placed into the fuse shell, and the fine spring is placed into the fuse shell by the fine spring feeding mechanism to complete the assembly of the fuse shell assembly; and at the packaging mechanism, after the insulator and the upper lead are assembled into a sealing assembly on the sealing fixture assembly by the ceramic feeding mechanism and the upper lead upper feeding mechanism, the fuse shell assembly and the sealing assembly are finally pressed together by the sealing limit mechanism to form a product, and finally the product unloading structure is used for classification unloading to complete the automatic assembly process of the entire temperature fuse;

[0018] The first gasket, the second gasket and the contact piece are directly formed by stamping and placed in the fuse shell, and a plurality of temperature fuses are assembled at the same time, thereby improving the production efficiency of the entire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the structural diagram of the thermal fuse;

[0020] Figure 2 It is a structural schematic diagram of the automatic assembly device of the present invention;

[0021] Figure 3 for Figure 1 A schematic diagram of a top view structure;

[0022] Figure 4 It is a three-dimensional structural diagram of the fuse housing feeding mechanism of the present invention;

[0023] Figure 5 It is a front view structural schematic diagram of the fuse housing feeding mechanism in the present invention;

[0024] Figure 6 It is a three-dimensional perspective structural schematic diagram of the hot melt feeding mechanism in the present invention;

[0025] Figure 7 It is a front view structural schematic diagram of the hot melt feeding mechanism in the present invention;

[0026] Figure 8 It is a structural schematic diagram of the first gasket stamping and feeding mechanism and the second gasket stamping and feeding mechanism in the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the contact sheet stamping and feeding mechanism in the present invention;

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the forming part in the contact piece stamping and feeding mechanism;

[0029] Fig.11 It is a front view structural schematic diagram of the forming part in the contact piece stamping and feeding mechanism;

[0030] Fig.12 It is a structural schematic diagram of the fine spring feeding mechanism in the present invention;

[0031] Fig.13 It is a structural schematic diagram of the turntable mechanism in the present invention;

[0032] Fig.14 It is a structural schematic diagram of the sealing clamp assembly in the present invention;

[0033] Fig.15 It is a three-dimensional structural schematic diagram of the insulator feeding mechanism in the present invention;

[0034] Fig.16 It is a side view structural schematic diagram of the insulator feeding mechanism in the present invention;

[0035] Fig.17 It is a three-dimensional structural schematic diagram of the upper lead feeding mechanism in the present invention;

[0036] Fig.18 It is a partial cross-sectional structural schematic diagram of the upper lead sliding down position in the upper lead feeding mechanism;

[0037] Fig.19 It is a structural schematic diagram of the sealing and limiting mechanism in the present invention;

[0038] Fig. 20 It is a structural schematic diagram of the product unloading mechanism in the present invention;

[0039] exist Figures 1 to 20 In the figure, the corresponding relationship between the component names or lines and the figure numbers is as follows:

[0040] Slide rail assembly 1, carrier transverse movement assembly 2, fuse shell feeding mechanism 3, diverter bracket 31, first flow channel 32, cutting block 33, cutting groove 34, fuse shell limit plate 35, first cylinder 36, first straight vibration 37, first circular vibration plate 38, hot melt feeding mechanism 4, second circular vibration plate 41, second straight vibration 42, second cylinder 43, grab bracket 44, third cylinder 45, lifting frame 46, suction nozzle 47, guide sleeve 48, first gasket stamping feeding mechanism 5, coarse spring feeding mechanism 6, second gasket stamping feeding mechanism 7, stamping assembly chassis 71, lower template 72, punch 73 , upper template 74, copper sheet punch 75, feeding mechanism 76, coil tray 77, waste collection bucket 78, contact sheet stamping feeding mechanism 8, sheet material feeding mechanism 81, fourth cylinder 82, stripping slide 83, fifth cylinder 84, stamping fixing plate 85, shell entry pressure head 86, punch needle 87, receiving plate 88, forming punch 89, fine spring feeding mechanism 9, support frame 91, blanking pipe 92, sixth cylinder 93, seventh cylinder 94, blanking block 95, blanking port 96, first limit ejector cylinder 97, second limit ejector cylinder 98, third circular vibration plate 99, packaging mechanism 10, turntable mechanism 1 1. Sealing fixture assembly 12, base 121, upper mold fixture 122, flip shaft 123, rotating shaft 124, synchronous belt 125, clamping plate 126, guide roller 127, ceramic feeding mechanism 13, ceramic feeding bracket 131, hopper 132, ceramic material pipe 133, rotating seat 134, lever 135, drive motor 136, eccentric wheel 137, roller 138, third limit ejector cylinder 139, upper lead feeding mechanism 14, upper lead bracket 141, sliding plate 142, fourth circular vibration disk 143, third direct vibration 144, eighth cylinder 145, upper lead cache track 1 46, pulling plate 147, ninth cylinder 148, sliding channel 149, sealing limit mechanism 15, packaging support seat 151, support column 152, tenth cylinder 153, pressing plate 154, packaging limit plate 155, telescopic electric cylinder 156, lower top plate 157, servo motor 158, product unloading mechanism 16, unloading support seat 161, eleventh cylinder 162, blowing plate 163, air nozzle 164, material receiving trough 165, twelfth cylinder 166, product distributing trough 167, waste hopper 168, finished product material frame 169, distributing box 1610, detection mechanism 17, waste grabbing mechanism 18. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] See also Figure 2-Figure 3As shown, an embodiment of the present invention proposes an automatic assembly device for a temperature fuse, comprising a slide rail assembly 1 and a carrier transverse movement assembly 2 arranged on the slide rail assembly 1, wherein the carrier transverse movement assembly 2 is provided with a clamp, wherein the carrier transverse movement assembly 2 can adopt a reciprocating movement mechanism composed of a reciprocating slide rail or a reciprocating belt to realize the movement and rotation of the clamp in the entire assembly process, so that the entire assembly process can flow and form a continuous automatic assembly process.

[0043] Specifically, a fuse shell feeding mechanism 3, a hot melt feeding mechanism 4, a first gasket stamping feeding mechanism 5, a coarse spring feeding mechanism 6, a second gasket stamping feeding mechanism 7, a contact piece stamping feeding mechanism 8, a fine spring feeding mechanism 9 and a packaging mechanism 10 are arranged in sequence along the moving direction of the fixture; wherein the fuse shell feeding mechanism 3 is used to convey the fuse shell of the temperature fuse and cut and separate it, the hot melt feeding mechanism 4 is used to convey the hot melt and place it into the fuse shell, the first gasket stamping feeding mechanism 5 is used to stamp and form the first gasket and place it into the fuse shell, the coarse spring feeding mechanism 6 is used to convey the coarse spring and place it into the fuse shell, the second gasket stamping feeding mechanism 7 is used to stamp and form the second gasket and place it into the fuse shell, and the contact piece stamping feeding mechanism 8 is used to stamp and form the contact The thin spring feeding mechanism 9 is used to convey the thin spring and place it in the fuse shell. The packaging mechanism 10 includes a turntable mechanism 11 and a plurality of sealing fixture assemblies 12 arranged along the rotation direction of the turntable mechanism 11. The packaging mechanism 10 also includes a ceramic feeding mechanism 13, an upper lead feeding mechanism 14, a sealing limit mechanism 15 and a product unloading mechanism 16 which are arranged outside the turntable mechanism 11 and along the rotation direction. The ceramic feeding mechanism 13 conveys the insulator to the sealing fixture assembly 12, the upper lead feeding mechanism 14 is used to convey the upper lead and insert the insulator to form a sealing assembly; the sealing limit mechanism 15 is used to grab and flip the sealing assembly and press it into the fuse shell to complete the finished product assembly; the product unloading mechanism 16 is used to classify the unloading finished products.

[0044] The main steps of the entire automated assembly process are as follows:

[0045] The fuse shell is loaded and placed in the positioning hole of the fixture through the fuse shell loading structure. In this embodiment, one fixture can be provided with 8 positioning holes, and 8 temperature fuses are assembled synchronously in each process. The fuse shell is moved synchronously by the movement of the fixture. The hot melt is placed in the fuse shell by the hot melt loading mechanism 4 to complete the second process assembly. The first gasket is stamped and formed by the first gasket stamping loading mechanism 5 and placed in the fuse shell and stacked on the hot melt. The thick spring is placed in the fuse shell and stacked on the first gasket by the thick spring loading mechanism 6. The second gasket is stamped and formed by the second gasket stamping loading mechanism 7 and placed in the fuse shell and stacked on the thick spring. The contact piece is stamped and formed by the contact piece stamping loading mechanism 8 and placed in the fuse shell and stacked on the second gasket. Finally, the thin spring is placed in the fuse shell and stacked on the contact piece by the thin spring loading mechanism 9, thereby completing the assembly of the fuse shell assembly on the straight moving line.

[0046] At the packaging mechanism 10, the position of the sealing clamp assembly 12 is changed by rotating through the turntable mechanism 11, and the insulator is placed on the sealing clamp assembly 12 in sequence along the rotation direction through the ceramic feeding mechanism 13, and then the upper lead is inserted into the insulator through the upper lead feeding mechanism 14 to form a sealing assembly.

[0047] The fuse shell assembly and the sealing assembly are moved to the sealing limit mechanism 15 for assembly and fixed connection to complete the assembly of the entire product, and finally continue to move to the product unloading mechanism 16 for classification and unloading to complete the entire automatic assembly process of the temperature fuse.

[0048] The fuse housing assembly and the sealing assembly are assembled simultaneously and then packaged and fixed at the sealing limit mechanism 15, which is beneficial to improving the production efficiency of the entire assembly process.

[0049] Specifically, during the entire assembly process, it is necessary to detect whether the material discharge is completed in each process. The detection mechanism 17 is also included, which is respectively arranged at the downstream end of the hot melt feeding mechanism 4, the first gasket stamping feeding mechanism 5, the coarse spring feeding mechanism 6, the second gasket stamping feeding mechanism 7, the contact piece stamping feeding mechanism 8, the fine spring feeding mechanism 9, the ceramic feeding mechanism 13, the upper lead feeding mechanism 14 and the product unloading mechanism 16. The specific detection mechanism 17 can use sensors such as infrared sensors or position sensors to detect after the corresponding parts are placed in the current process to ensure that no errors occur.

[0050] Of course, there will be waste in the specific assembly process. Therefore, before the fuse housing assembly is moved to the sealing limit mechanism 15 for packaging, the problematic fuse housing assembly is unloaded and grabbed by the waste grabbing mechanism 18 to avoid entering the product assembly process.

[0051] Specifically, Figure 2 , Figure 4 , Figure 5 As shown, the fuse shell feeding mechanism 3 includes a shunt bracket 31 and a plurality of first flow channels 32 arranged in the shunt bracket 31. The plurality of first flow channels 32 correspond to the positioning holes on the fixture one by one. After feeding, the fuse shell slides into the positioning holes on the fixture through the first flow channels 32 for positioning. A cutting block 33 is slidably mounted on the diverter bracket 31, and a plurality of cutting grooves 34 are provided on the cutting block 33, and the cutting grooves 34 correspond to the first flow channel 32 one by one. The diverter bracket 31 is also provided with a slidable fuse shell limiting plate 35, and a first cylinder 36 is connected to the cutting block 33. The first cylinder 36 carries the cutting block 33, and the fuse shells are arranged and aligned with the first flow channel 32 through the cutting grooves 34, wherein the number of the cutting grooves 34 and the number of the first flow channel 32 are both 8. Therefore, after the first cylinder 36 reciprocates until the 8 fuse shells are correspondingly positioned to the first flow channel 32, the first flow channel 32 is opened to allow the 8 fuse shells to slide down onto the fixture. At the same time, a sensor for detecting the fuse shell falling into the fixture is provided at the bottom of the diverter bracket 31, and the sensor is used to detect whether the fuse shell falls into the fixture. The specific sensor can be a mature detection sensor such as an infrared sensor. It also includes a first direct vibration 37 for conveying fuse shells to the cutting block 33 and a first circular vibration plate 38 for conveying fuse shells to the first direct vibration 37. The fuse shells are sequentially conveyed to the first direct vibration 37 by the first circular vibration plate 38 and then sequentially moved to the cutting block 33, forming a continuous feeding process, and after the cutting is completed, they slide down to the next fixture through the first flow channel 32, thereby forming a continuous assembly process.

[0052] Specifically, Figure 2 , Figure 6 , Figure 7As shown, the hot melt feeding mechanism 4 includes a second circular vibration disk 41 and a second straight vibration disk 42. The hot melt is sequentially transported to the second straight vibration disk 42 by the second circular vibration disk 41 to be moved to the feeding position. A second cylinder 43 for transverse movement and a grabbing bracket 44 installed on the second cylinder 43 are provided above the end of the second straight vibration disk 42. A third cylinder 45 and a lifting frame 46 connected to the third cylinder 45 are installed on the grabbing bracket 44. A suction nozzle 47 corresponding to the positioning holes on the clamp is installed on the lifting frame 46. A sensor is also provided on the lifting frame 46. At the same time, a guide sleeve 48 for guiding the hot melt to fall is also provided at the end of the second straight vibration disk 42. The lateral position of the third cylinder 45 is adjusted by the second cylinder 43, so that the lifting frame 46 and the suction nozzle 47 installed on the third cylinder 45 can be moved between the end of the second straight vibration 42 and the clamp. The suction nozzle 47 is moved to the end of the second straight vibration 42 and the lifting position is adjusted to grasp the hot melt under negative pressure. Then, it is moved above the clamp and moved downward to place the hot melt in the guide sleeve 48 and drop it into the fuse shell to complete the loading process.

[0053] After the hot melt is loaded, the first gasket is punched and loaded by the first gasket punching loading mechanism 5, the coarse spring is loaded by the coarse spring loading mechanism 6, and the second gasket is punched and loaded by the second gasket punching loading mechanism 7, wherein the first gasket punching loading mechanism 5 and the second gasket punching loading mechanism 7 have the same structure, as shown in FIG. Figure 1 , Figure 2 , Figure 8 As shown, the punch assembly chassis 71 includes a punch press 73 located above the lower template 72, the punch press 73 is installed on the lower template 72, the upper template 74 and the copper sheet punch 75 installed on the upper template 74 are installed on the lifting mechanism of the punch press 73, and the lower template 72 is provided with punch holes corresponding to the positioning holes on the fixture. The punch assembly chassis 71 is also equipped with a feeding mechanism 76 and a coiling tray 77 located on one side of the feeding mechanism 76, the coiling tray 77 is connected to a motor, and the motor drives the coiling tray 77 to rotate to realize the traction and movement of the copper sheet material, and the feeding mechanism 76 is used to feed the copper sheet material to the punching position, and the punch press 73 drives the copper sheet punch 75 to punch the copper sheet material, and the formed copper sheet falls on the fixture after punching and falls into the fuse shell, completing the forming processing and feeding of the first gasket or the second gasket. At the same time, a waste collection bucket 78 is installed on the stamping assembly chassis 71 and is located below the lower template 72 to facilitate the collection of waste generated by stamping.

[0054] Specifically, the stamping forming processes of the first gasket and the second gasket both adopt the same stamping mechanism.

[0055] Specifically, the coarse spring feeding mechanism 6 is similar in structure to the ceramic feeding mechanism 13. For the specific structure, please refer to the detailed description of the ceramic feeding mechanism 13 pair later. It is only necessary to replace the objects of the specific feeding pair between the coarse spring and the insulator.

[0056] Specifically, Figure 1 , Figure 9-11 As shown, the contact piece also adopts the method of synchronous feeding by stamping and forming, and the contact piece stamping feeding mechanism 8 includes a sheet feeding mechanism 81 and a stamping mechanism, and the stamping mechanism includes a fourth cylinder 82 that can move laterally, and a stripping slide 83 is installed on the fourth cylinder 82, and a fifth cylinder 84 is installed on the stripping slide 83, and a stamping fixing plate 85 is installed on the fifth cylinder 84, and the stamping fixing plate 85 is provided with a shell insertion pressure head 86 corresponding to the positioning holes on the fixture and a protruding The punching needle 87 of the shell entry pressure head 86 and the material removal slide plate 83 are provided with a receiving plate 88 corresponding to the shell entry pressure head 86, and the receiving plate 88 is provided with a forming punching hole 89; after the copper sheet is moved to the punching position by the sheet material feeding mechanism 81, the shell entry pressure head 86 is moved to the forming punching hole 89 position by the fourth cylinder 82 and the fifth cylinder 84, and then moved downward to perform punching and separation from the copper sheet, and then the punching needle 87 continues to move downward to push the contact sheet downward and drop it into the fuse shell.

[0057] Among them, the sheet material feeding mechanism 81 adopts the existing winding structure to realize the discharge of copper sheets and the winding of waste materials, can be directly used, and can be the same as the sheet material feeding structure in the first gasket stamping feeding mechanism 5 and the second gasket stamping feeding mechanism 7.

[0058] After the contact piece is placed, the thin spring is loaded. Specifically, Figure 1 , Fig.12As shown, the fine spring feeding mechanism 9 includes a support frame 91 and a plurality of drop tubes 92 arranged on the support frame 91, the drop tubes 92 correspond to the positioning holes on the fixture one by one, the support frame 91 is provided with a sixth cylinder 93 which can move laterally and a seventh cylinder 94 installed on the sixth cylinder 93, the seventh cylinder 94 is provided with a drop block 95, the drop block 95 is provided with a drop opening 96 corresponding to the drop tube 92, and the sixth cylinder 93 and the seventh cylinder 94 are connected to each other. 94 realizes the translation and lifting movement of the blanking block 95, thereby the thin springs can be placed into the blanking tube 92 from the blanking port 96 one by one, and after all the blanking tubes 92 are filled with thin springs, the thin springs are fed into the fuse shell. In order to stop the thin springs when releasing the materials, in this embodiment, the number of blanking tubes 92 is 8, corresponding to the number of fuse shells, but the number of blanking blocks 95 and blanking ports 96 is 4, so it is necessary to perform reciprocating motion to place the thin springs in the 8 blanking tubes 92 in sequence. Specifically, the blanking block 95 is provided with a first limit pin cylinder 97 for stopping the thin springs falling into the blanking port 96, and the first limit pin cylinder 97 is used to stop the thin springs entering the blanking port 96, and the thin springs are released after the blanking port 96 is aligned with the blanking tube 92, so that the thin springs fall into the blanking tube 92, thereby realizing the process of four blanking stations loading the 8 blanking tubes 92 in sequence.

[0059] At the same time, a second limit pin cylinder 98 for stopping the spring from falling into the blanking tube 92 is installed on the support frame 91. The second limit pin cylinder 98 is activated after the fixture is moved into place, releasing the thin spring to fall into the fuse housing to complete the assembly. Specifically, a sensor for detecting the blanking state of the thin spring is installed on the support frame 91. The sensor is used to detect the dynamic state of the thin spring falling into the fuse housing, so as to provide a feedback signal for the action of the second limit pin cylinder 98.

[0060] It also includes a third circular vibration disk 99 for conveying thin springs to the blanking port 96. A flexible material guiding structure is provided between the third circular vibration disk 99 and the blanking port 96 to facilitate continuous material feeding when the blanking port 96 moves.

[0061] A number of thin springs can be stored through the drop tube 92, and the falling of the thin springs can be controlled by the action of the second limit ejector cylinder 98, so that the process of loading the thin springs into the drop tube 92 and the process of loading the thin springs into the fuse shell from the drop tube 92 are separated, so that two loading processes can be carried out continuously.

[0062] After the above assembly process, the components in the fuse case are assembled to form a fuse case assembly. The fuse case assembly is carried by the fixture to move toward the sealing limit mechanism 15, and before moving into position, the unqualified fuse case assembly detected at the front end is unloaded by the waste grabbing mechanism 18. The specific waste grabbing mechanism 18 can be composed of a cylinder, a clamp, etc. to automatically grab the fuse case assembly on the fixture and unload it to the waste collection place. Of course, a robot can also be introduced for operation.

[0063] While the fuse housing assembly is being assembled, the sealing assembly is also being assembled at the packaging mechanism 10 , and is being loaded and assembled respectively by the ceramic loading mechanism 13 and the upper lead loading mechanism 14 .

[0064] Among them, Figure 1-Figure 2 , Figure 15-16 The ceramic feeding mechanism 13 shown in the figure includes a ceramic feeding bracket 131 and a hopper 132 longitudinally slidably mounted on the ceramic feeding bracket 131, a plurality of ceramic material tubes 133 extending into the hopper 132 are installed at intervals on the ceramic feeding bracket 131, a rotating seat 134 and a lever 135 rotatably mounted on the rotating seat 134 are installed on the ceramic feeding bracket 131, one end of the lever 135 is rotatably connected to the hopper 132, and a driving motor 136 and a driving motor 136 are installed on the ceramic feeding bracket 131. The eccentric wheel 137 is provided with a roller 138 which is in rolling cooperation with the other end of the lever 135; when the eccentric wheel 137 is rotated by the driving motor 136, the lever 135 is pressed back and forth up and down by the roller 138, so that the hopper 132 is driven to move up and down along the ceramic material tube 133, and when the insulator in the hopper 132 rises and exceeds the feeding position of the ceramic material tube 133, the insulator automatically slides into the ceramic material tube 133, thereby utilizing the lifting and lowering action of the hopper 132 to allow the insulator to automatically enter the ceramic material tube 133 and slide downward.

[0065] A third limiting ejector cylinder 139 is installed on the ceramic feeding bracket 131 to stop the insulator from falling into the ceramic material tube 133. The third limiting ejector cylinder 139 is used to control the sliding state of the insulator from the ceramic material tube 133, and after falling, it is placed in the positioning hole of the sealing clamp assembly 12, and then rotated upward for the lead feeding process.

[0066] Specifically, Figure 1-Figure 2 , Figure 17-Figure 18As shown, the upper lead feeding mechanism 14 includes an upper lead bracket 141 and a sliding plate 142 slidably mounted on the upper lead bracket 141, the sliding plate 142 is mounted with a fourth circular vibration disk 143 and a third direct vibration 144, the upper lead bracket 141 is mounted with an eighth cylinder 145, the eighth cylinder 145 is used to push or pull the sliding plate 142 to move; an upper lead buffer track 146 is mounted on the upper lead bracket 141, a pull plate 147 for limiting the upper lead is mounted at the end of the upper lead buffer track 146, and a ninth cylinder 148 for driving the pull plate 147 to move is mounted at the end of the upper lead buffer track 146; the upper lead buffer track 146 is provided with a The positioning holes of the sealing clamp assembly 12 correspond one by one to the slide channel 149; the feed end and the discharge end of the upper lead cache track 146 are both provided with sensors; the eighth cylinder 145 pulls the fourth circular vibration disk 143 and the third direct vibration 144 to move and then guides the upper lead into the slide channel of the upper lead cache track 146, and guides the upper lead into the 8 slide channels in turn, and when the upper lead slides to the end of the upper lead cache track 146, the back pull plate 147 is used to limit the position, and when the upper lead needs to be lowered into the slide channel 149 and inserted into the insulator, the ninth cylinder 148 pulls the pull plate 147 to release the upper lead to slide downward from the slide channel 149, and the falling state of the upper lead is detected by the sensor during the sliding process.

[0067] After the above process, the upper lead and the insulator are plugged and assembled into a sealing component. During the movement toward the sealing limit mechanism 15, the sealing component is flipped over and covered on the clamp by the sealing clamp assembly 12, thereby the sealing component and the fuse shell assembly are molded together at the sealing limit mechanism 15.

[0068] like Figure 13-14As shown, the sealing clamp assembly 12 includes a base 121 installed on the turntable mechanism 11 and an upper mold clamp 122 rotatably installed on the base 121, the upper mold clamp 122 is provided with a flip shaft 123 extending out of the base 121, and a rotating shaft 124 is installed on the base 121. A synchronous belt 125 is sleeved on the flip shaft 123 and the rotating shaft 124, and a clamp plate 126 and a guide roller 127 installed on the clamp plate 126 are connected to the synchronous belt 125. The guide roller 127 cooperates with the sliding guide groove on the turntable mechanism 11. By utilizing the curved surface change of the sliding guide groove, when the guide roller 127 slides to the corresponding position, the clamp plate 126 is used to pull the synchronous belt 125 to cause the upper mold clamp 122 to flip 180°, so that the sealing assembly is flipped synchronously. At the same time, the position of the upper mold fixture 122 is adjusted on the base 121 by cooperating with the slide plate and the slider to ensure the fit between the upper mold fixture 122 and the fixture in the sealing limit mechanism 15, thereby completing the alignment of the sealing component and the fuse shell component and facilitating the subsequent application of pressure to complete the packaging.

[0069] Specifically, Figure 1-Figure 2 , Fig.19 As shown, the sealing limiting mechanism 15 includes a packaging support seat 151 and a support column 152 installed on the packaging support seat 151, a tenth cylinder 153 is installed on the support column 152, and a pressing plate 154 corresponding to the clamp is installed on the tenth cylinder 153. The tenth cylinder 153 drives the pressing plate 154 to position and press the clamp, that is, the fuse shell assembly is positioned and pressed. At the same time, a packaging limiting plate 155 for limiting the upper mold clamp 122 is installed on the packaging support seat 151, and the packaging limiting plate 155 is installed on the packaging support seat 151. 55 limits the upper mold fixture 122 after flipping, and also includes a telescopic electric cylinder 156 located below the support seat and a lower top plate 157 installed on the telescopic electric cylinder 156. A servo motor 158 is installed on the telescopic electric cylinder 156. When the servo motor 158 drives the telescopic electric cylinder 156 to move the lower top plate 157 upward, the fixture moves the fuse shell assembly toward the sealing assembly. When the fixture and the upper mold fixture 122 are closed, the sealing assembly is fixed on the fuse shell assembly through the extrusion effect, completing the assembly of the entire temperature fuse.

[0070] The assembled product continues to move toward the product unloading mechanism 16 following the sealing clamp assembly 12 , and the clamp begins to flow back to the initial position through the carrier transverse movement assembly 2 , thereby forming a cyclic movement.

[0071] Among them, Figure 2 , Fig. 20As shown, the product unloading mechanism 16 includes an unloading support seat 161, on which an eleventh cylinder 162 located above the sealing fixture assembly 12 is installed, and a blowing plate 163 is installed on the eleventh cylinder 162, and an air nozzle 164 is installed on the blowing plate 163, and an air flow is generated by the air nozzle 164 to blow the product off the sealing fixture assembly 12, and at the same time, a material receiving trough 165 located below the fixture and a material receiving trough 165 for pushing the material receiving trough 165 to slide are installed on the unloading support seat 161. The twelfth cylinder 166 is provided, and a product distributing trough 167 and a waste hopper 168 are provided below the receiving trough 165; the blown-off products fall into the receiving trough 165, and after the product is pre-detected for defects, the position of the receiving trough 165 is moved by the twelfth cylinder 166. When the product is qualified, the product falls into the product distributing trough 167 through the receiving trough 165, and a finished product frame 169 is placed below the product distributing trough 167, and the products are collected by the finished product frame 169. The unqualified products fall into the distributing hopper 132 through the receiving trough 165 for collection for subsequent processing.

[0072] Thus, the entire assembly process of the temperature fuse is completed through automatic loading, stamping and assembly, and 8 temperature fuses can be assembled at one time, thereby improving the assembly efficiency.

[0073] Finally, it should be noted that this embodiment does not describe in detail all the constituent mechanisms, but mainly explains the parts that constitute protection. If there are some mechanisms that affect the feasibility, they can be directly assembled and applied using existing technologies.

[0074] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0076] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An automatic assembly device for a thermal fuse, characterized in that: It comprises a slide rail assembly and a carrier transverse movement assembly arranged on the slide rail assembly, wherein the carrier transverse movement assembly is provided with a clamp; A fuse housing feeding mechanism, a hot melt feeding mechanism, a first gasket stamping feeding mechanism, a thick spring feeding mechanism, a second gasket stamping feeding mechanism, a contact piece stamping feeding mechanism, a thin spring feeding mechanism and a packaging mechanism are sequentially arranged along the moving direction of the fixture; The fuse shell feeding mechanism is used to convey the fuse shells of the thermal fuse and cut and separate them; The hot melt feeding mechanism is used to convey the hot melt and place it into the fuse housing; The first gasket stamping and feeding mechanism is used for stamping and forming the first gasket and placing it into the fuse housing; The coarse spring feeding mechanism is used to convey the coarse spring and place it into the fuse housing; The second gasket stamping and feeding mechanism is used for stamping and forming the second gasket and placing it into the fuse housing; The contact piece stamping and feeding mechanism is used for stamping and forming the contact piece and placing it into the fuse housing; The thin spring feeding mechanism is used to convey the thin spring and place it into the fuse housing; The packaging mechanism includes a turntable mechanism and a plurality of sealing fixture assemblies arranged along the rotation direction of the turntable mechanism, and the packaging mechanism also includes a ceramic feeding mechanism, an upper lead feeding mechanism, a sealing limit mechanism and a product unloading mechanism, which are arranged outside the turntable mechanism and along the rotation direction; The ceramic feeding mechanism conveys the insulator to the sealing fixture assembly, and the upper lead feeding mechanism is used to convey the upper lead and insert the insulator into the sealing assembly; The sealing limit mechanism is used to grab the sealing component, flip it over and press it into the fuse housing to complete the finished product assembly; The product unloading mechanism is used to classify and unload finished products; The fuse housing feeding mechanism comprises a shunt bracket and a plurality of first flow channels arranged in the shunt bracket, and the plurality of first flow channels correspond one by one to the positioning holes on the fixture; A cutting block is slidably mounted on the diverter bracket, a plurality of cutting grooves are arranged on the cutting block, and the cutting grooves correspond to the first flow channels one by one. A slidable fuse housing limit plate is also arranged on the diverter bracket, and a first cylinder is connected to the cutting block; The bottom of the shunt bracket is also provided with a sensor for detecting a fuse shell that falls onto the fixture; It also includes a first direct vibration device for conveying the fuse housing to the cut block and a first circular vibration plate for conveying the fuse housing to the first direct vibration device.

2. The automatic assembly device for a thermal fuse according to claim 1, characterized in that: It also includes detection mechanisms respectively arranged at the downstream end of the hot melt feeding mechanism, the first gasket stamping feeding mechanism, the coarse spring feeding mechanism, the second gasket stamping feeding mechanism, the contact piece stamping feeding mechanism, the fine spring feeding mechanism, the ceramic feeding mechanism, the upper lead feeding mechanism and the product unloading mechanism.

3. An automatic assembly device for a thermal fuse according to claim 1 or 2, characterized in that: The hot melt feeding mechanism comprises a second circular vibrating plate and a second straight vibration plate, a second cylinder for transverse movement and a grabbing bracket mounted on the second cylinder are arranged above the end of the second straight vibration plate, a third cylinder and a lifting frame connected to the third cylinder are arranged on the grabbing frame, a suction nozzle corresponding to the positioning holes on the fixture is arranged on the lifting frame, and a sensor is also arranged on the lifting frame; The second straight vibration end is also provided with a guide sleeve for guiding the hot melt to fall.

4. The automatic assembly device for a thermal fuse according to claim 1 or 2, characterized in that: The contact sheet stamping and feeding mechanism comprises a sheet material feeding mechanism and a stamping mechanism, the stamping mechanism comprises a fourth cylinder which can move laterally, a material stripping slide plate is mounted on the fourth cylinder, and a fifth cylinder which is mounted on the material stripping slide plate, a stamping fixing plate is mounted on the fifth cylinder, and a shell-entering press head which corresponds to the positioning holes on the fixture one by one and a punching needle which can extend out of the shell-entering press head is provided on the stamping fixing plate; A receiving plate corresponding to the shell entry pressure head is installed on the stripping slide, and a forming punching hole is opened on the receiving plate.

5. The automatic assembly device for a thermal fuse according to claim 1 or 2, characterized in that: The thin spring feeding mechanism comprises a support frame and a plurality of drop tubes arranged on the support frame, and the drop tubes correspond to the positioning holes on the clamp one by one; The support frame is provided with a sixth cylinder that can move laterally and a seventh cylinder installed on the sixth cylinder, a blanking block is installed on the seventh cylinder, a blanking opening corresponding to the blanking pipe is opened on the blanking block, and a first limit pin cylinder for stopping a thin spring from falling into the blanking opening is provided on the blanking block; The support frame is provided with a second limiting ejector cylinder for stopping the ejector from falling into the drop tube; The support frame is provided with a sensor for detecting the blanking state of the fine spring; It also includes a third circular vibration plate for conveying fine springs to the drop port.

6. The automatic assembly device for a thermal fuse according to claim 1 or 2, characterized in that: The ceramic feeding mechanism comprises a ceramic feeding bracket and a hopper longitudinally slidably mounted on the ceramic feeding bracket, and a plurality of ceramic feeding tubes extending into the hopper are installed at intervals on the ceramic feeding bracket; The ceramic feeding bracket is provided with a rotating seat and a lever rotatably mounted on the rotating seat, and one end of the lever is rotatably connected to the hopper; The ceramic feeding bracket is provided with a driving motor and an eccentric wheel installed on the driving motor, and the eccentric wheel is provided with a roller that rolls with the other end of the lever; The ceramic feeding bracket is provided with a third limiting ejector cylinder for stopping the insulator falling into the ceramic material tube.

7. The automatic assembly device for a thermal fuse according to claim 1 or 2, characterized in that: The upper lead wire feeding mechanism comprises an upper lead wire bracket and a sliding plate slidably mounted on the upper lead wire bracket, a fourth circular vibration plate and a third direct vibration plate are mounted on the sliding plate, an eighth cylinder is mounted on the upper lead wire bracket, and the eighth cylinder is used to push or pull the sliding plate to move; An upper lead buffer track is installed on the upper lead bracket, a pull plate for limiting the upper lead is installed at the end of the upper lead buffer track, and a ninth cylinder for driving the pull plate is installed at the end of the upper lead buffer track; The upper lead buffer track is provided with a sliding channel corresponding to the positioning holes of the sealing fixture assembly one by one; Sensors are provided at both the feeding end and the discharging end of the upper lead buffer track.

8. The automatic assembly device for a thermal fuse according to claim 1 or 2, characterized in that: The sealing limit mechanism comprises a packaging support seat and a support column mounted on the packaging support seat, a tenth cylinder is mounted on the support column, and a pressing plate corresponding to the clamp is mounted on the tenth cylinder; The packaging support seat is provided with a packaging limiting plate for limiting the sealing fixture assembly; It also includes a telescopic electric cylinder located below the support seat and a lower top plate installed on the telescopic electric cylinder, and a servo motor is installed on the telescopic electric cylinder.

9. The automatic assembly device for a thermal fuse according to claim 1 or 2, characterized in that: The product unloading mechanism comprises an unloading support seat, an eleventh air cylinder located above the sealing fixture assembly is installed on the unloading support seat, a blowing plate is installed on the eleventh air cylinder, and an air nozzle is installed on the blowing plate; The material unloading support seat is provided with a material receiving trough located below the clamp and a twelfth cylinder for pushing the material receiving trough to slide; A product distributing trough and a waste hopper are provided below the receiving trough; A finished product material frame is placed below the product distribution trough.

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