Automatic assembly device for thermal protector

Abstract

The present application relates to the technical field of thermal protector, and particularly relates to a kind of thermal protector automatic assembly device, by protector shell feeding assembly, end piece feeding assembly and lead feeding assembly, the required assembly material is correspondingly conveyed, protector shell is conveyed to step conveying table group by vibration disc group one and direct shock module one, end piece is fed by vibration disc group two and direct shock module two, is conveyed to receiving table by material distribution mechanism, then by material moving mechanism, end piece is moved and aligned with lead feeding assembly, lead feeding assembly conveys the required lead to the corresponding end piece, then by mechanical gripper, end piece and lead are combined and sent to the protector shell on step conveying table group, after assembly is completed, step conveying table group pushes the protector to protector unloading assembly and cleans up and receives material.The present application realizes the automatic assembly of protector by multiple sets of automatic equipment, improves the assembly efficiency, reduces time and labor cost, and effectively simplifies the traditional protector assembly mode.

Description

Technical Field

[0001] This invention relates to the field of thermal protector technology, and more specifically to an automatic assembly device for thermal protectors. Background Technology

[0002] A thermal protector is a protector with dual protection functions: current overload protection and overheat protection. Its advantage lies in this dual protection. When the motor winding coil current overloads (exceeds) by a multiple of the motor's rated current, this protector will automatically disconnect the power circuit at its rated value, thus protecting the motor's safety. This protector provides protection against motor overload, phase loss, and locked rotor circuits. It can be applied to three-phase motors, submersible pumps, etc., with any wiring method. It automatically disconnects the power circuit within 4-10 seconds, or when the motor winding coil overheats and exceeds the motor's temperature. The thermal protector is mainly assembled from terminal plates, leads, and an insulating base. During assembly, these components need to be connected together to form the entire protector. Currently, the assembly of thermal protectors is generally done manually, or through a combination of semi-automatic and manual methods, resulting in low assembly efficiency and a high risk of damage to the terminal plates and leads, or improper assembly. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic assembly device for thermal protectors.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An automatic assembly device for thermal protectors includes a protector housing feeding assembly, an end piece feeding assembly, and a lead wire feeding assembly. The protector housing feeding assembly, the end piece feeding assembly, and the lead wire feeding assembly are all mounted on a frame. A stepping conveyor assembly for protector assembly and stepping conveying is provided on the frame. The protector housing feeding assembly includes a vibratory feeder assembly and a linear vibration module assembly. Both the vibratory feeder assembly and the linear vibration module assembly are located at one end of the stepping conveyor assembly, and the feeding and unloading ends of the linear vibration module assembly are respectively facing the vibratory feeder assembly and the stepping conveyor assembly. The end piece feeding assembly is located on one side of the stepping conveyor assembly, and the lead wire feeding assembly is located on one side of the end piece feeding assembly. A protector unloading assembly is provided at the other end of the stepping conveyor assembly.

[0006] The stepper conveyor assembly includes a guide platform for moving the protector and a pusher module for pushing the protector to the corresponding position. The two ends of the guide platform are aligned with the unloading end of the direct vibration module one of the protector housing feeding assembly and the feeding end of the protector unloading assembly, respectively. The guide platform is provided with an outlet and an assembly slot. The assembly slot is directly opposite the lead wire feeding assembly and the end piece feeding assembly, and the outlet is directly opposite the protector unloading assembly.

[0007] The end piece feeding assembly includes a second vibratory feeder assembly, a second linear vibration module, a mechanical gripper, and a receiving platform. The second vibratory feeder assembly and the second linear vibration module are connected and located on the side of the stepping conveyor assembly near the protector feeding assembly. The receiving platform is directly opposite the unloading end of the second linear vibration module. The mechanical gripper is mounted on the stepping conveyor assembly and is directly opposite the receiving platform. The receiving platform is equipped with a material distribution mechanism for end piece feeding and a material transfer mechanism for aligning the end pieces with the lead wire feeding assembly.

[0008] Preferably, the material distribution mechanism includes a material distribution plate, a fixed plate, and a material stop fork. The material distribution plate is installed on the upper end of one side of the fixed plate by a cylinder, and the fixed plate is fixedly installed on one side of the receiving platform. The material distribution plate is located above the unloading end of the second vibration module. The material stop fork is installed on the other side of the fixed plate by a cylinder and faces the unloading end of the second vibration module. The material distribution plate is located above the material stop fork.

[0009] Preferably, the material transfer mechanism includes a material transfer platform, a material feeding fork, and a mounting base. The material transfer platform is installed in the middle of the receiving platform via an air rail module one. The material transfer platform is directly opposite the unloading end of the direct vibration module two. The material feeding fork is installed on the mounting base via a cylinder three. The mounting base is installed at one end of the receiving platform via an air rail module two and is directly opposite the material transfer platform. The mounting base is fixedly installed on the cylinder module two. The cylinder module two is installed on the receiving platform. The material transfer platform is provided with a wire receiving plate that is aligned with the lead wire feeding assembly.

[0010] Preferably, the mechanical gripper has two grippers with slots for engaging the end piece. A pressure block is located on one side of the upper end of each slot. When the mechanical gripper picks up the end piece and the lead wire, the slots of the two grippers engage with both sides of the end piece. During the clamping process, the pressure blocks at the upper ends of the corresponding slots move closer together and press the connection between the end piece and the lead wire. The mechanical gripper then delivers the end piece and lead wire assembly to the protector housing in the assembly slot of the guide platform. The protector housing enters the assembly slot under the push of the pusher module. After assembly, the pusher module pulls the protector back.

[0011] Preferably, the lead wire feeding assembly includes a wire reel module for lead wire feeding, a wire guide roller group for lead wire conveying, and a wire cutting module for cutting wire. The wire reel module is installed at one end of the receiving platform, the wire guide roller group is installed on the receiving platform via a roller frame and is directly opposite the wire reel module, and the wire cutting module is installed on the receiving platform and is located between the transfer platform and the wire guide roller group. The wire cutting module and the wire guide roller group are connected by a pulley system for transmission.

[0012] Preferably, the guide roller assembly includes a drive roller, a constraint roller, and an adjusting seat for adjusting the distance between the constraint roller and the drive roller. The drive roller is mounted on a motor drive shaft that provides power to the wire spool module. The constraint roller is mounted on the adjusting seat via the constraint roller. One pulley of the pulley assembly is mounted on the drive shaft.

[0013] Preferably, the wire cutting module includes a wire cutting wheel, a wire cutting blade, and a wheel frame. The wire cutting wheel is rotatably mounted on the wheel frame via a drive shaft. The wheel frame is fixedly mounted on the receiving platform. The wire cutting blade is hinged to the wire cutting wheel via a blade holder. The wire cutting wheel is provided with a wire cutting opening. The blade holder is hinged at the wire cutting opening. There are two wire cutting blades and two blade holders, which are symmetrically arranged. The two blade holders are connected by a spring. The wheel frame is provided with blade-stopping posts on both sides. The upper end of the blade-stopping posts can abut against the outer side of the corresponding blade holder. The drive shaft is connected to one pulley of the pulley assembly.

[0014] Preferably, the protector unloading assembly includes a three-phase vibration module, a receiving mechanism, a dust removal mechanism, and a dropping mechanism. The three-phase vibration module is mounted on the frame and faces the discharge port of the guide platform. The receiving mechanism, dust removal mechanism, and dropping mechanism are all mounted on the three-phase vibration module. The receiving frame includes a receiving guide and a coupling joint. The receiving guide is mounted on the top of the three-phase vibration module. The coupling joint is mounted on one end of the three-phase vibration module near the discharge port. A clamping cylinder is provided at the lower end of the coupling joint. A straightening clamp is provided on the clamping cylinder. The straightening clamp is located on both sides of the receiving port of the receiving guide.

[0015] Preferably, the dust removal mechanism includes a brush plate, a dust removal brush, and a dust suction pipe assembly. The brush plate is fixedly installed on one end of the receiving guide frame near the connector. The dust removal brush is rotatably installed on the brush plate, facing the material guide groove of the receiving guide frame. An air inlet is provided on the brush plate, one end of which is connected to an air source pipe, and the other end faces the dust removal brush. The dust suction pipe assembly is installed on the other end of the receiving guide frame. Air holes are provided at the bottom and sides of the receiving guide frame, and the air holes blow air through the air inlet hood into the material guide groove inside the receiving guide frame.

[0016] Preferably, the material feeding mechanism includes a material feeding box and a closing plate. The material feeding box is installed at the other end of the direct vibration module three, and is aligned with the receiving guide. A material feeding port is formed between the material feeding box and the receiving guide. The closing plate is installed at the material feeding port by a cylinder four.

[0017] The beneficial effects of this invention are as follows: To achieve automated assembly of thermal protectors, this invention utilizes a protector housing feeding assembly, an end piece feeding assembly, and a lead wire feeding assembly to transport the required assembly materials accordingly. The protector housing is conveyed to a stepping conveyor assembly via a vibratory feeder group one and a direct vibration module one. The end pieces are fed by a vibratory feeder group two and a direct vibration module two, and then distributed to a receiving platform by a material distribution mechanism. A material transfer mechanism then moves the end pieces to align with the lead wire feeding assembly. The lead wire feeding assembly transports the required lead wires to the corresponding end pieces. A mechanical gripper then clamps and attaches the end pieces and lead wires to the protector housing on the stepping conveyor assembly. After assembly, the stepping conveyor assembly pushes the protector to the protector unloading assembly, where the unloading assembly cleans and collects the protector. This invention achieves automated assembly of the protector through multiple sets of automated equipment, improving assembly efficiency, reducing time and labor costs, and effectively simplifying traditional protector assembly methods. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the stepper conveyor assembly of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the end-piece feeding assembly of the present invention.

[0024] Figure 6 This is a partial structural diagram of the mechanical gripper of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the protector feeding assembly of the present invention. Figure 1 .

[0026] Figure 8 This is a three-dimensional structural diagram of the protector feeding assembly of the present invention. Figure 2 .

[0027] Figure 9 This is a top view of the protector feeding assembly of the present invention.

[0028] Figure 10 This invention is a three-dimensional structural diagram of a lead wire feeding assembly. Figure 1 .

[0029] Figure 11 This is a three-dimensional structural diagram of the lead wire feeding assembly of the present invention. Figure 2 .

[0030] Figure 12 This is a schematic diagram of the wire-cutting module of the present invention.

[0031] Figure 13 This is a schematic diagram of the wire-passing module of the present invention.

[0032] Figure 14 This is an assembly sequence diagram of the present invention.

[0033] In the picture:

[0034] 1-Protector housing feeding assembly; 1a-Vibration plate assembly 1; 1b-Direct vibration module 1;

[0035] 2-End piece feeding assembly; 2a-Vibrating plate assembly two; 2b-Direct vibration module two; 2c-Mechanical gripper; 2c1-Gripper; 2c2-Gripper; 2c3-Pressure block; 2d-Receiving platform; 2e-Distribution mechanism; 2e1-Distribution plate; 2e2-Cylinder one; 2e3-Fixing plate; 2e4-Stopping fork; 2e5-Cylinder two; 2f-Transfer mechanism; 2f1-Transfer platform; 2f2-Air rail module one; 2f3-Pulling fork; 2f4-Cylinder three; 2f5-Mounting base; 2f6-Air rail module two; 2f7-Wire guide plate;

[0036] 3- Lead wire feeding assembly; 3a- Wire reel module; 3b- Wire guide roller assembly; 3b1- Drive shaft; 3b2- Drive roller; 3b3- Constraint roller; 3b4- Constraint wheel; 3b5- Adjusting seat; 3c- Roller frame; 3d- Wire cutting module; 3d1- Wire cutting wheel; 3d2- Drive shaft; 3d3- Wheel frame; 3d4- Wire cutting knife; 3d5- Wire break point; 3d6- Knife holder; 3d7- Spring; 3d8- Knife stop post; 3e- Pulley assembly;

[0037] 4-Stepping conveyor assembly; 4a-Guide platform; 4b-Pushing module; 4c-Discharge port; 4d-Assembly slot;

[0038] 5-Rack;

[0039] 6- Protector feeding assembly; 6a- Direct vibration module three; 6b- Receiving mechanism; 6b1- Receiving guide; 6b2- Connecting joint; 6b3- Clamping cylinder; 6b4- Correcting chuck; 6c- Dust removal mechanism; 6c1- Brush plate; 6c2- Dust removal brush; 6c3- Air inlet; 6c4- Air vent; 6c5- Dust suction pipe assembly; 6c6- Air inlet hood; 6d- Unloading mechanism; 6d1- Unloading box; 6d2- Unloading port; 6d3- Closing plate; 6d4- Cylinder four. Implementation

[0040] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0042] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, 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 orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0043] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; 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 refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] like Figures 1 to 14 As shown, an automatic assembly device for thermal protectors includes a protector housing feeding assembly 1 for feeding the protector housing, an end piece feeding assembly 2 for feeding the end pieces, and a lead wire feeding assembly 3. The protector housing feeding assembly 1, the end piece feeding assembly 2, and the lead wire feeding assembly 3 are all mounted on a frame 5. A stepping conveyor group 4 for protector assembly and stepping conveying is provided on the frame 5. The protector housing feeding assembly 1 includes a vibratory feeder group 1a and a linear vibration module 1b. Both the vibratory feeder group 1a and the linear vibration module 1b are located at one end of the stepping conveyor group 4, and the feeding and unloading ends of the linear vibration module 1b are respectively facing the vibratory feeder group 1a and the stepping conveyor group 4. The end piece feeding assembly 2 is located on one side of the stepping conveyor group 4, and the lead wire feeding assembly 3 is located on one side of the end piece feeding assembly 2. A protector unloading assembly 6 is provided at the other end of the stepping conveyor group 4.

[0045] The stepping conveyor assembly 4 includes a guide platform 4a for moving the protector and a pushing module 4b for pushing the protector to the corresponding position. The two ends of the guide platform 4a are aligned with the unloading end of the direct vibration module 1b of the protector housing loading assembly 1 and the loading end of the protector unloading assembly 6, respectively. The guide platform 4a is provided with an outlet 4c and an assembly groove 4d. The assembly groove 4d is directly opposite the lead wire loading assembly 3 and the end piece loading assembly 2, and the outlet 4c is directly opposite the protector unloading assembly 6.

[0046] The end piece feeding assembly 2 includes a second vibratory feeder assembly 2a, a second linear vibration module 2b, a mechanical gripper 2c, and a receiving platform 2d. The second vibratory feeder assembly 2a and the second linear vibration module 2b are connected and located on the side of the stepping conveyor assembly 4 near the protector feeding assembly. The receiving platform 2d is directly opposite the unloading end of the second linear vibration module 2b. The mechanical gripper 2c is installed on the stepping conveyor assembly 4 and is directly opposite the receiving platform 2d. The receiving platform 2d is equipped with a material distribution mechanism 2e for end piece material distribution and a material transfer mechanism 2f for aligning the end pieces with the lead wire feeding assembly 3.

[0047] To achieve automated assembly of the thermal protector, this invention utilizes a protector housing feeding assembly 1, an end piece feeding assembly 2, and a lead wire feeding assembly 3 to transport the required assembly materials. The protector housing is conveyed to a stepping conveyor assembly 4 via a vibratory feeder group 1a and a direct vibration module 1b. The end pieces are fed by a second vibratory feeder group 2a and a second direct vibration module 2b, and then distributed to a receiving platform 2d by a material distribution mechanism 2e. A material transfer mechanism 2f moves the end pieces to align with the lead wire feeding assembly 3. The lead wire feeding assembly 3 then delivers the required lead wires to the corresponding end pieces. A mechanical gripper 2c clamps the end pieces and lead wires together and places them onto the protector housing on the stepping conveyor assembly 4. After assembly, the stepping conveyor assembly 4 pushes the protector to the protector unloading assembly 6, which cleans and collects the protector. This invention achieves automated assembly of the protector through multiple sets of automated equipment, improving assembly efficiency, reducing time and labor costs, and effectively simplifying traditional protector assembly methods.

[0048] like Figures 2 to 5 As shown, the material distribution mechanism 2e includes a material distribution plate 2e1, a fixed plate 2e3, and a material blocking fork 2e4. The material distribution plate 2e1 is installed on the upper end of one side of the fixed plate 2e3 via a cylinder 2e2. The fixed plate 2e3 is fixedly installed on one side of the receiving platform 2d. The material distribution plate 2e1 is located above the unloading end of the direct vibration module 2b. The material blocking fork 2e4 is installed on the other side of the fixed plate 2e3 via a cylinder 2e5 and faces the unloading end of the direct vibration module 2b. The material distribution plate 2e1 is located above the material blocking fork 2e4.

[0049] During end piece feeding, the end pieces are fed through the vibratory feeder group 2a and the linear vibration module 2b, and are arranged and conveyed sequentially on the linear vibration module 2b. Since the end pieces are relatively thin, the front and rear end pieces are prone to overlapping when conveyed on the linear vibration module 2b. Therefore, this invention uses a separating plate 2e1 to separate the end pieces on the linear vibration module 2b. When the end piece passes through the separating plate 2e1, the cylinder 2e2 controls the lifting and lowering of the separating plate 2e1, and the material passage on the separating plate 2e1 separates the end pieces. During the separation, the cylinder 2e5 first pushes the stop fork 2e4 to block the feeding end of the linear vibration module 2b, which facilitates the contact and separation between the separating plate 2e1 and the end piece, and can also adjust the posture of the end piece to prevent the end piece from deviating when entering the transfer mechanism 2f.

[0050] like Figures 2 to 5 As shown, the material transfer mechanism 2f includes a material transfer platform 2f1, a material fork 2f3, and a mounting base 2f5. The material transfer platform 2f1 is installed in the middle of the receiving platform 2d via an air rail module 1 2f2. The material transfer platform 2f1 is directly opposite the unloading end of the direct vibration module 2b. The material fork 2f3 is installed on the mounting base 2f5 via a cylinder 3 2f4. The mounting base 2f5 is installed at one end of the receiving platform 2d via an air rail module 2f6 and is directly opposite the material transfer platform 2f1. The mounting base 2f5 is fixedly installed on the cylinder module 2. The cylinder module 2 is installed on the receiving platform 2d. The material transfer platform 2f1 is provided with a guide plate 2f7 for receiving the lead wire, which is aligned with the lead wire feeding assembly 3.

[0051] To connect the end pieces one by one and quickly connect the end pieces and the leads, this invention uses a transfer mechanism 2f to receive the end pieces one by one. The air rail module 2f2 drives the transfer platform 2f1 to move and align the transfer platform 2f1 with the direct vibration module 2b. Then, the air rail module 2f6 and the cylinder 2f4 move the feed fork 2f3 to the end piece at the end of the direct vibration module 2b. The end piece is then moved to the middle of the transfer platform 2f1 and locked in place by the feed fork 2f3. The air rail module 2f2 then moves the transfer platform 2f1 and the end piece to align with the lead wire feeding assembly 3. During this process, the feed fork 2f3 always locks the end piece on the transfer platform 2f1 so that the lead wire can pass through the top of the end piece.

[0052] like Figure 6As shown, the mechanical gripper 2c has two grippers 2c1 with slots 2c2 for engaging the end piece. One side of the upper end of the slot 2c2 has a pressure block 2c3. When the mechanical gripper 2c picks up the end piece and the lead wire, the slots 2c2 of the two grippers 2c1 engage the two sides of the end piece respectively. During the clamping process, the pressure blocks 2c3 at the upper end of the corresponding slots 2c2 move closer to each other and press the connection between the end piece and the lead wire. Then the mechanical gripper 2c delivers the end piece and lead wire assembly to the protector housing at the assembly slot 4d of the guide platform 4a. The protector housing enters the assembly slot 4d under the push of the pusher module 4b. After assembly, the pusher module 4b pulls the protector back.

[0053] like Figures 10 to 13 As shown, the lead wire feeding assembly 3 includes a wire reel module 3a for lead wire feeding, a wire conveying roller group 3b for lead wire conveying, and a wire cutting module 3d for cutting wire. The wire reel module 3a is installed at one end of the receiving platform 2d. The wire conveying roller group 3b is installed on the receiving platform 2d via a roller frame 3c and is directly opposite the wire reel module 3a. The wire cutting module 3d is installed on the receiving platform 2d and is located between the transfer platform 2f1 and the wire conveying roller group 3b. The wire cutting module 3d and the wire conveying roller group 3b are connected by a pulley group 3e for transmission.

[0054] When feeding the lead wire, the required lead wire reels are stored in the wire reel module 3a. The lead wire is passed through the wire guide roller group 3b and is assisted in conveying by the wire guide roller group 3b. After passing through the wire guide roller group 3b, the lead wire enters the wire cutting module 3d. Driven by the wire reel module 3a and the wire guide roller group 3b, the wire cutting module 3d is driven by the pulley group 3e, so that the wire cutting module 3d cuts the lead wire.

[0055] like Figures 10 to 13 As shown, the wire roller group 3b includes a drive roller 3b2, a constraint roller 3b4, and an adjusting seat 3b5 for adjusting the distance between the constraint roller 3b4 and the drive roller 3b2. The drive roller 3b2 is mounted on a motor drive shaft 3b1 that provides power to the wire spool module 3a. The constraint roller 3b4 is mounted on the adjusting seat 3b5 via the constraint roller 3b3. One pulley of the pulley group 3e is mounted on the drive shaft 3b1.

[0056] To facilitate lead wire feeding, the present invention uses a wire reel module 3a for feeding and a wire guide roller group 3b for auxiliary feeding. When the lead wire passes between the drive roller 3b2 and the constraint roller 3b4, it is clamped and fed by the drive roller 3b2 and the constraint roller 3b4 to prevent the lead wire from shaking or deviating during the wire cutting process.

[0057] like Figures 10 to 13As shown, the wire cutting module 3d includes a wire cutting wheel 3d1, a wire cutting blade 3d4, and a wheel frame 3d3. The wire cutting wheel 3d1 is rotatably mounted on the wheel frame 3d3 via a drive shaft 3d2. The wheel frame 3d3 is fixedly mounted on the receiving platform 2d. The wire cutting blade 3d4 is hinged to the wire cutting wheel 3d1 via a blade holder 3d6. The wire cutting wheel 3d1 is provided with a wire cutting opening 3d5. The blade holder 3d6 is hinged at the wire cutting opening 3d5. There are two wire cutting blades 3d4 and two blade holders 3d6, which are symmetrically arranged. The two blade holders 3d6 are connected by a spring 3d7. The wheel frame 3d3 has blade abutment posts 3d8 on both sides. The upper end of the blade abutment post 3d8 can abut against the outer side of the corresponding blade holder 3d6. The drive shaft 3d2 is connected to one pulley of the pulley group 3e.

[0058] To cut continuous lead wires, this invention uses a wire-passing module and a pulley assembly 3e to drive the transmission shaft 3d2 and the wire-cutting wheel 3d1 to rotate. The lead wire is fed towards the transfer table 2f1 in the wire groove at the upper end of the wire-cutting wheel 3d1. One rotation of the wire-cutting wheel 3d1 cuts a section of lead wire. During the rotation of the wire-cutting wheel 3d1, when the knife holder 3d6 and the wire-cutting blade 3d4 on the wire-cutting wheel 3d1 are not in contact with the abutment post 3d8, the wire-cutting blades 3d4 on both sides open, and the lead wire passes through. When the knife holder 3d6 abuts against the abutment post 3d8, the abutment post 3d8 presses the two knife holders 3d6 and the wire-cutting blade 3d4 against the lead wire, thus cutting the lead wire. After the knife holder 3d6 leaves the abutment post 3d8, the wire-cutting blade 3d4 and the knife holder 3d6 return to their original positions under the action of the spring 3d7.

[0059] like Figures 7 to 9 As shown, the protector unloading assembly 6 includes a direct vibration module 6a, a receiving mechanism 6b, a dust removal mechanism 6c, and a dropping mechanism 6d. The direct vibration module 6a is mounted on the frame 5 and faces the discharge port 4c of the guide table 4a. The receiving mechanism 6b, the dust removal mechanism 6c, and the dropping mechanism 6d are all mounted on the direct vibration module 6a. The receiving frame 5 includes a receiving guide 6b1 and a coupling connector 6b2. The receiving guide 6b1 is mounted on the top of the direct vibration module 6a. The coupling connector 6b2 is mounted on one end of the direct vibration module 6a near the discharge port 4c. A clamping cylinder 6b3 is provided at the lower end of the coupling connector 6b2. A straightening chuck 6b4 is provided on the clamping cylinder 6b3. The straightening chuck 6b4 is located on both sides of the receiving port of the receiving guide 6b1.

[0060] The stepping conveyor group 4 transports the assembled protector along the guide platform 4a to the receiving frame 5. When the protector moves to the discharge port 4c on the guide platform 4a, the pushing module 4b pushes the protector from the discharge port 4c into the receiving guide 6b1 of the receiving mechanism 6b. The protector stops at the end of the receiving guide 6b1, and then the straightening chuck 6b4 is controlled by the docking cylinder to clamp the protector and the end piece for further feeding and conveying.

[0061] like Figures 7 to 9As shown, the dust removal mechanism 6c includes a brush plate 6c1, a dust removal brush 6c2, and a suction pipe assembly 6c5. The brush plate 6c1 is fixedly installed on one end of the receiving guide frame 6b1 near the connector 6b2. The dust removal brush 6c2 is rotatably installed on the brush plate 6c1, and the dust removal brush 6c2 is directly opposite the material guide groove of the receiving guide frame 6b1. An air inlet 6c3 is provided on the brush plate 6c1. One end of the air inlet 6c3 is connected to the air source pipe, and the other end is directly opposite the dust removal brush 6c2. The suction pipe assembly 6c5 is installed on the other end of the receiving guide frame 6b1. Air holes 6c4 are provided on the bottom and sides of the receiving guide frame 6b1. The air holes 6c4 blow air through the air inlet hood 6c6 into the material guide groove inside the receiving guide frame 6b1.

[0062] When the protector moves from the receiving guide 6b1 to the unloading mechanism 6d under the action of the direct vibration module 6a, as the protector passes below the position of the brush plate 6c1, the air inlet 6c3 blows air horizontally to blow out dust or debris from the guide groove of the receiving guide 6b1, and also blows the protector away from the front. While the air inlet 6c3 is blowing air, the dust removal brush 6c2 rotates rapidly under this action and brushes the upper surface of the protector. When the protector moves to the position below the dust suction pipe group 6c5 and the position of the air hole 6c4, the air hole 6c4 blows air to the bottom and sides of the protector, blowing away and sucking away the dust or debris on the sides of the protector.

[0063] like Figures 7 to 9 As shown, the material feeding mechanism 6d includes a material feeding box 6d1 and a closing plate 6d3. The material feeding box 6d1 is installed at the other end of the direct vibration module 6a and is aligned with the receiving guide 6b1. A material feeding port 6d2 is formed between the material feeding box 6d1 and the receiving guide 6b1. The closing plate 6d3 is installed at the material feeding port 6d2 by a cylinder 6d4.

[0064] When the protector is conveyed from the receiving guide 6b1 to the discharge port 6d2, the cylinder 6d4 pushes the closing plate 6d3 away, opening the discharge port 6d2; conversely, it closes the discharge port 6d2.

[0065] It should be stated that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to the present invention. However, such variations, as long as they do not depart from the spirit of the present invention, should be within the scope of protection of the present invention. Furthermore, some terminology used in this specification and claims is not limiting, but merely for ease of description.

Claims

1. A thermal protector automatic assembly apparatus, characterized by, The protective shell feeding assembly (1), the end piece feeding assembly (2) and the lead feeding assembly (3) are installed on the rack (5), the rack (5) is provided with a stepping conveying table group (4) for protective assembly and stepping conveying, the protective shell feeding assembly (1) comprises a vibration disc group one (1a) and a straight shock module one (1b), the vibration disc group one (1a) and the straight shock module one (1b) are located at one end of the stepping conveying table group (4), and the feeding and discharging ends of the straight shock module one (1b) respectively face the vibration disc group one (1a) and the stepping conveying table group (4), the end piece feeding assembly (2) is located at one side of the stepping conveying table group (4), the lead feeding assembly (3) is arranged at one side of the end piece feeding assembly (2), and the other end of the stepping conveying table group (4) is provided with a protective shell discharging assembly (6); The stepping conveying table group (4) comprises a guide table (4a) for protective movement and a pushing module (4b) for pushing the protective to a corresponding position, the two ends of the guide table (4a) are respectively aligned with the discharging end of the straight shock module one (1b) of the protective shell feeding assembly (1) and the feeding end of the protective shell discharging assembly (6), the guide table (4a) is provided with a discharging port (4c) and an assembly groove (4d), the assembly groove (4d) faces the lead feeding assembly (3) and the end piece feeding assembly (2), and the discharging port (4c) faces the protective shell discharging assembly (6); The end piece feeding assembly (2) comprises a vibration disc group two (2a), a straight shock module two (2b), a mechanical gripper (2c) and a receiving table (2d), the vibration disc group two (2a) and the straight shock module two (2b) are connected and located at one side of the stepping conveying table group (4) close to the protective feeding assembly, the receiving table (2d) faces the discharging end of the straight shock module two (2b), the mechanical gripper (2c) is installed on the stepping conveying table group (4) and faces the receiving table (2d), and the receiving table (2d) is provided with a distributing mechanism (2e) for end piece distributing conveying and a material moving mechanism (2f) for aligning the end piece with the lead feeding assembly (3); The distributing mechanism (2e) comprises a distributing piece (2e1), a fixed plate (2e3) and a material blocking fork (2e4), the distributing piece (2e1) is installed on the upper end of one side of the fixed plate (2e3) through a cylinder one (2e2), the fixed plate (2e3) is fixedly installed on one side of the receiving table (2d), the distributing piece (2e1) is located above the discharging end of the straight shock module two (2b), and the material blocking fork (2e4) is installed on the other side of the fixed plate (2e3) through a cylinder two (2e5) and faces the discharging end of the straight shock module two (2b), and the distributing piece (2e1) is located above the material blocking fork (2e4). The material moving mechanism (2f) comprises a material moving table (2f1), a material poking fork (2f3) and a mounting seat (2f5), the material moving table (2f1) is installed at the middle part of the material receiving table (2d) through the air rail module one (2f2), the material moving table (2f1) can face the discharging end of the straight vibration module two (2b), the material poking fork (2f3) is installed on the mounting seat (2f5) through the air cylinder three (2f4), the mounting seat (2f5) is installed on one end of the material receiving table (2d) through the air rail module two (2f6) and faces the material moving table (2f1), the mounting seat (2f5) is fixedly installed on the air cylinder module two, the air cylinder module two is installed on the material receiving table (2d), the material moving table (2f1) is provided with a lead wire plate (2f7) for receiving lead wires which is aligned with the lead wire feeding assembly (3); The two clamping jaws (2c1) of the mechanical clamping hand (2c) are provided with a socket (2c2) capable of clamping the end piece, the upper end of the socket (2c2) has a pressing block (2c3), when the mechanical clamping hand (2c) clamps the end piece and the lead wire, the sockets (2c2) of the two clamping jaws (2c1) clamp the two sides of the end piece respectively, in the clamping process, the pressing blocks (2c3) corresponding to the upper end of the socket (2c2) are close to each other and press the connection between the end piece and the lead wire, then the mechanical clamping hand (2c) clamps and sends the end piece and lead wire assembly to the protector shell on the assembly groove (4d) of the material guiding table (4a), the protector shell enters the assembly groove (4d) under the pushing of the material pushing module (4b), and the protector is pulled back again after assembly is completed. The lead wire feeding assembly (3) comprises a wire disc module (3a) for lead wire feeding, a wire passing roller group (3b) for lead wire conveying and a wire cutting module (3d) for wire cutting, the wire disc module (3a) is installed on one end of the material receiving table (2d), the wire passing roller group (3b) is installed on the material receiving table (2d) through a roller support (3c) and faces the wire disc module (3a), and the wire cutting module (3d) is installed on the material receiving table (2d) and located between the material moving table (2f1) and the wire passing roller group (3b), the wire cutting module (3d) and the wire passing roller group (3b) are drivingly connected through a belt wheel group (3e); The wire passing roller group (3b) comprises a driving roller (3b2), a constraint wheel (3b4) and an adjusting seat (3b5) for adjusting the distance between the constraint wheel (3b4) and the driving roller (3b2), the driving roller (3b2) is installed on a motor driving shaft (3b1) for providing power for the wire disc module (3a), the constraint wheel (3b4) is installed on the adjusting seat (3b5) through a constraint roller (3b3), and one belt wheel of the belt wheel group (3e) is installed on the driving shaft (3b1). The cutting line module (3d) comprises a cutting line wheel (3d1), a cutting line cutter (3d4) and a wheel frame (3d3), the cutting line wheel (3d1) is rotatably mounted on the wheel frame (3d3) through a transmission shaft (3d2), the wheel frame (3d3) is fixedly mounted on the material receiving table (2d), the cutting line cutter (3d4) is hingedly connected to the cutting line wheel (3d1) through a cutter holder (3d6), the cutting line wheel (3d1) is provided with a broken line port (3d5), the cutter holder (3d6) is hingedly connected at the broken line port (3d5), the cutting line cutter (3d4) and the cutter holder (3d6) are both provided with two and are symmetrically arranged, the two cutter holders (3d6) are connected through a spring (3d7), the wheel frame (3d3) is provided with a cutter abutting column (3d8) on both sides, the upper end of the cutter abutting column (3d8) can abut against the outside of the corresponding cutter holder (3d6), and the transmission shaft (3d2) is connected with one belt wheel of a belt wheel set (3e).

2. A device for automatically assembling a thermal protector according to claim 1, wherein The protector blanking assembly (6) comprises a straight vibration module three (6a), a material receiving mechanism (6b), a dust removal mechanism (6c) and a blanking mechanism (6d), the straight vibration module three (6a) is installed on the rack (5) and faces the discharge port (4c) of the material guide table (4a), the material receiving mechanism (6b), the dust removal mechanism (6c) and the blanking mechanism (6d) are all installed on the straight vibration module three (6a), the material receiving mechanism (6b) comprises a material receiving guide frame (6b1) and a butt joint (6b2), the material receiving guide frame (6b1) is installed on the top of the straight vibration module three (6a), the butt joint (6b2) is installed on one end of the straight vibration module three (6a) close to the discharge port (4c), and the lower end of the butt joint (6b2) is provided with a pair of clamping air cylinders (6b3), and the clamping air cylinders (6b3) are provided with correction clamping heads (6b4) on both sides of the material receiving port of the material receiving guide frame (6b1).

3. A device for automatically assembling a thermal protector according to claim 2, wherein The dust removal mechanism (6c) comprises a brush plate (6c1), a dust removal brush (6c2) and a dust suction pipe group (6c5), the brush plate (6c1) is fixedly installed on one end of the material receiving guide frame (6b1) close to the butt joint (6b2), the dust removal brush (6c2) is rotatably installed on the brush plate (6c1), the dust removal brush (6c2) faces the material guide groove of the material receiving guide frame (6b1), the brush plate (6c1) is provided with an air inlet hole (6c3), one end of the air inlet hole (6c3) is connected with an air source pipeline, and the other end faces the dust removal brush (6c2), the dust suction pipe group (6c5) is installed on the other end of the material receiving guide frame (6b1), the bottom and the two sides of the material receiving guide frame (6b1) are provided with air holes (6c4), and the air holes (6c4) blow air to the material guide groove in the material receiving guide frame (6b1) through an air inlet cover (6c6).

4. A device for automatically assembling a thermal protector according to claim 3, wherein The blanking mechanism (6d) comprises a blanking box (6d1) and a closing plate (6d3), the blanking box (6d1) is installed on the other end of the straight vibration module three (6a) and faces the material receiving guide frame (6b1), a blanking port (6d2) is formed between the blanking box (6d1) and the material receiving guide frame (6b1), and the closing plate (6d3) is installed at the blanking port (6d2) through a fourth air cylinder (6d4).

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