Automatic assembling device and method for thermomagnetic release

Abstract

The invention discloses a thermomagnetic release automatic assembling device and method.The thermomagnetic release automatic assembling device comprises a rack, a bearing assembly used for bearing a shell is arranged on the rack, and a bolt feeding assembly used for feeding bolts and a nut feeding assembly used for feeding nuts are arranged on one side of the bearing assembly; a containing assembly is arranged at the output end of the bolt feeding assembly and the output end of the nut feeding assembly, a transferring assembly is arranged above the containing assembly, and a screwing assembly is arranged on one side of the transferring assembly. A conveying assembly used for vertically conveying the screwed bolts and nuts to the shell is arranged between the screwing assembly and the bearing assembly, and a screwing assembly is arranged above the conveying assembly. The device has the main beneficial effects that the layout is reasonable, full-automatic connection and full-automatic mechanical operation between a nut and a bolt and between the bolt and a body are achieved, the yield is improved through mechanical consistency, meanwhile, the working intensity is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing, and in particular to an automatic assembly device and method for a thermal-magnetic release. Background Art

[0002] The release is a device that is mechanically connected to the circuit breaker and is used to release the holding mechanism and automatically disconnect the circuit breaker. Its function is that when there is leakage in the line or electric shock to a person, the vector sum of the current passing through the zero-sequence current transformer is not equal to zero, and the two sides of the transformer secondary coil generate voltage, which is amplified by the integrated circuit. When the setting value is reached, the power supply is cut off within 0.1 seconds through the leakage release, thereby playing a role in electric shock and leakage protection.

[0003] The release device at least includes a body, a bolt and a nut. The industry usually uses manual screwing of the nut on the bolt, and then screwing the bolt after the nut is screwed on the body. At present, the size of the bolt and nut is getting smaller and smaller, and the difficulty of manual threading increases. The threading takes a long time and cannot keep up with the speed of the assembly line. At the same time, manual threading may cause leakage and the yield rate cannot be guaranteed. In addition, when manually tightening the bolt on the body, the operator may be pinched. In addition, there are inconsistencies in manual operation, resulting in a high scrap rate; manual production efficiency is low. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an automatic assembly device and method for a thermal magnetic release.

[0005] The purpose of the present invention is achieved through the following technical solutions: A thermal-magnetic release automatic assembly device comprises a frame, a bearing assembly for bearing a shell is provided on the frame, a bolt feeding assembly for feeding bolts and a nut feeding assembly for feeding nuts are provided on one side of the bearing assembly, a containing assembly for accommodating the bolts and nuts is provided at the output ends of the bolt feeding assembly and the nut feeding assembly, a transfer assembly for clamping and transferring the bolts is provided above the containing assembly, a screwing assembly for screwing the bolts and nuts on the containing assembly is provided on one side of the transfer assembly; a conveying assembly for vertically conveying the screwed bolts and nuts to the shell is provided between the screwing assembly and the bearing assembly, and a screwing assembly for screwing the bolts to the shell is provided above the conveying assembly.

[0006] Preferably, the nut feeding assembly at least includes a nut vibration plate fixedly mounted on the frame, a nut support plate fixedly mounted at the output end of the nut vibration plate, an upward push cylinder fixedly mounted on one side of the nut support plate, a nut support block fixedly mounted on the cylinder shaft of the upward push cylinder, a lower nut slot matching the nut being provided on the nut support block; a downward pull cylinder fixedly mounted on the other side of the nut support plate, a downward pull plate fixedly mounted on the cylinder shaft of the downward pull cylinder, an upper nut slot matching the nut being provided on the downward pull plate.

[0007] Preferably, the bolt feeding assembly at least includes a bolt vibration bin fixed on the frame, and the output end of the bolt vibration bin is close to the accommodating assembly.

[0008] Preferably, the accommodation assembly comprises at least three equidistant accommodation rods fixedly mounted on the frame, each of the accommodation rods is fixedly mounted with an accommodation block, and the accommodation block is provided with an accommodation groove matched with the bolt.

[0009] Preferably, the screwing assembly at least includes a pushing cylinder fixedly mounted on the frame, a pushing plate fixedly mounted on the cylinder shaft of the pushing cylinder, a pushing block fixedly mounted on the pushing plate, an automatic gun fixedly mounted on the pushing block, the automatic gun being located on one side of the middle accommodating block, the central axis of the automatic gun being coaxial with the central axis of the middle accommodating block and the central axis of the lower nut slot.

[0010] Preferably, the transferring assembly at least includes a transferring rack fixedly mounted on the frame, a transferring cylinder fixedly arranged on the transferring rack, a transferring plate fixedly arranged on the piston of the transferring cylinder, a lower pressure cylinder fixedly arranged on the transferring plate, a lower pressure plate fixedly arranged on the piston of the lower pressure cylinder, a clamping cylinder fixedly arranged on the lower pressure plate, and the distance between the clamping cylinders is equal to the distance between adjacent accommodating support rods.

[0011] Preferably, the bearing assembly at least includes a bearing frame, a driving cylinder is fixedly provided on the bearing frame, a sliding plate is fixedly provided on the cylinder shaft of the driving cylinder, a group of bearing blocks is fixedly provided on the sliding plate, and the shell can be clamped on the bearing blocks.

[0012] Preferably, the conveying assembly at least includes a conveying frame, on which an upper conveying box and a lower conveying box are fixedly provided, the lower conveying box is located directly above the shell, and the upper conveying box and the lower conveying box are connected by a hose; the conveying frame is also fixedly provided with a transmission frame, a transmission screw is pivotally provided on the transmission frame, one end of the transmission screw is transmission-connected to a transmission motor, a transmission screw is provided on the transmission screw which is transmission-connected to the transmission motor as a screw, a transmission plate is fixedly provided on the transmission nut, a push-down cylinder is fixedly provided on the transmission plate, and a clamping cylinder is fixedly provided on the piston of the push-down cylinder.

[0013] Preferably, the screw connection assembly includes a driving frame fixedly mounted on the conveying frame, a driving screw rod is pivotally provided on the driving frame, one end of the driving screw rod is transmission-connected to the driving motor, a driving nut is provided on the driving screw rod which is transmission-connected to the driving motor, a driving plate is fixedly mounted on the driving nut, a servo cylinder is fixedly mounted on the driving plate, a fixing plate is fixedly mounted on the cylinder shaft of the servo cylinder, and a screw gun is fixedly mounted on the fixing plate.

[0014] A method for automatically assembling a thermal magnetic release comprises the following steps: S1. The nut vibration plate is started to transport the nut to the output end of the nut vibration plate, the push-up cylinder drives the nut support block to move upward, and the pull-down cylinder drives the pull-down plate to move downward until the lower nut clamping groove and the upper nut clamping groove cooperate to clamp the nut; at the same time, the bolt vibration bin is started to transport the bolt to the corresponding receiving groove of the receiving block; S2, the downward pressure cylinder drives the downward pressure plate to move downward until the clamping cylinder clamps the bolt on the receiving block at the end side of the bolt vibration bin, and the transfer cylinder is started to drive the transfer plate and the downward pressure cylinder to move, placing the bolt in the receiving groove of the receiving block in the middle; S3, the push cylinder is started to drive the push plate and the automatic gun to move to the specified position, and the automatic gun is started to screw the bolt into the nut; S4, the pressing cylinder is started again to drive the pressing plate to move downward until the clamping cylinder clamps the bolt on the middle receiving block, and the transfer cylinder is started again to drive the transfer plate and the pressing cylinder to move, and the tightened bolt and nut are placed in the receiving groove of the receiving block on the end side; S5, the push cylinder is started, driving the clamping cylinder to clamp the bolt, the transmission motor is started, and the transmission plate is driven to move to the top of the upper conveying box through the transmission screw and the transmission nut in turn, and the clamping cylinder releases the bolt, and the bolt passes through the software and the lower conveying box and flows vertically into the housing; S6, the driving motor is started, and the driving plate is driven to move to the top of the shell through the driving screw rod and the driving nut in turn, and the screw gun is started to screw the bolt onto the shell.

[0015] The beneficial effects of the present invention are mainly reflected in: 1. With reasonable layout and exquisite design, the device realizes fully automatic connection between nut and bolt and between bolt and body, and fully automatic mechanized operation. The consistency of mechanization improves the yield rate, reduces work intensity and improves work efficiency. 2. Loading materials through nut vibration plate and bolt vibration bin can avoid production stoppage caused by untimely manual loading, thereby improving work efficiency; 3. The nut vibration plate, bolt feeding assembly, accommodating assembly, screwing assembly and transfer assembly are highly integrated, making the layout reasonable, reducing the occupied space and having a wide range of applicability; 4. The upper conveying box, the lower conveying box and the hose cooperate with each other to convey the bolts vertically. The operation is simple and convenient, and it is easy to disassemble, replace and repair, which greatly improves work efficiency. In addition, screwing the bolts vertically into the shell can avoid accidental falling of the bolts, thereby further improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings: Figure 1 : A stereogram of a preferred embodiment of the present invention; Figure 2 : A three-dimensional diagram of a nut vibration plate, a bolt feeding assembly, a accommodating assembly and a screwing assembly in a preferred embodiment of the present invention; Figure 3 : A three-dimensional diagram of a nut feeding assembly in a preferred embodiment of the present invention; Figure 4 : A three-dimensional diagram of a bearing assembly in a preferred embodiment of the present invention; Figure 5 : A three-dimensional view of the conveying assembly and the screw connection assembly in the first direction in a preferred embodiment of the present invention; Figure 6 : A stereoscopic view of the conveying component and the screw connection component in the second direction in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0019] like Figures 1 to 6As shown, the present invention discloses an automatic assembly device for a thermal-magnetic release, including a frame 1, on which a bearing assembly 2 for bearing a shell 100 is provided, and the bearing assembly 2 at least includes a bearing frame 21, on which a driving cylinder 22 is fixedly provided, and on the cylinder shaft of the driving cylinder 22 a sliding plate 23 is fixedly provided, and on the sliding plate 23 a group of bearing blocks 24 are fixedly provided. In this preferred embodiment, four bearing blocks are provided on the sliding plate 23. Of course, other numbers of bearing blocks 24 may also be provided, which all belong to the protection scope of the present invention and will not be described in detail here. The shell 100 may be snapped onto the bearing block 24, and specifically, the bearing block 24 is provided with a bearing port that is designed to imitate the shell, and the shell 100 is plugged into the bearing port.

[0020] A bolt loading assembly 3 for loading bolts 101 and a nut loading assembly 4 for loading nuts 102 are provided on one side of the bearing assembly 2. The nut loading assembly 4 at least includes a nut vibration disk 41 fixedly mounted on the frame 1. The structure of the nut vibration disk 41 is prior art, and the present invention will not be described in detail here. A nut support plate 42 is fixedly mounted at the output end of the nut vibration disk 41, and an upward push cylinder 43 is fixedly mounted on one side of the nut support plate 42. A nut support block 44 is fixedly mounted on the cylinder shaft of the upward push cylinder 43, and a lower nut clamping groove 45 matching the nut 102 is provided on the nut support block 44; a lower pull cylinder 46 is fixedly mounted on the other side of the nut support plate 42, and a lower pull plate 47 is fixedly mounted on the cylinder shaft of the pull cylinder 46, and an upper nut clamping groove 48 matching the nut 102 is provided on the pull plate 47. The upper nut retaining groove 48 and the lower nut retaining groove 45 cooperate with each other to limit the nut 102 to prevent movement when the bolt and the nut are screwed together, thereby improving the accuracy of the screwing.

[0021] The bolt feeding assembly 3 at least includes a bolt vibration bin 31 fixed on the frame 1. The structure of the bolt vibration bin 31 is a prior art, and the present invention will not be described in detail here. The output end of the bolt vibration bin 31 is close to the accommodating assembly 5. In a preferred embodiment of the present invention, the nut vibration plate and the bolt vibration bin are used for feeding, which can avoid production stoppage caused by untimely manual feeding, thereby improving work efficiency.

[0022] The output ends of the bolt feeding assembly 3 and the nut feeding assembly 4 are provided with a receiving assembly 5 for receiving the bolts 101 and the nuts 102, and the receiving assembly 5 includes at least three receiving support rods 51 equidistantly arranged on the frame 1, and each of the receiving support rods 51 is fixed with a receiving block 52, and the receiving block 52 is provided with a receiving groove 53 adapted to the bolt 101.

[0023] In the above, a transfer component 6 for clamping and transplanting the bolt 101 is provided above the accommodating component 5, and the transfer component 6 at least includes a transfer frame 61 fixedly mounted on the frame 1, a transfer cylinder 62 is fixedly mounted on the transfer frame 61, a transfer plate 63 is fixedly mounted on the piston of the transfer cylinder 62, a lower pressure cylinder 64 is fixedly mounted on the transfer plate 63, a lower pressure plate 65 is fixedly mounted on the piston of the lower pressure cylinder 64, a clamping cylinder 66 is fixedly mounted on the lower pressure plate 65, and a distance between the clamping cylinders 66 is equal to a distance between adjacent accommodating support rods 51, thereby realizing batch clamping and transplanting to improve work efficiency.

[0024] A screwing assembly 7 for screwing the bolt 101 and the nut 102 on the accommodating assembly 5 is provided on one side of the transfer assembly 6. The screwing assembly 7 at least includes a push cylinder 71 fixed on the frame 1. A push plate 72 is fixed on the cylinder shaft of the push cylinder 71. A push block 73 is fixed on the push plate 72. An automatic gun 74 is fixed on the push block 73. The automatic gun 74 is located on one side of the middle accommodating block 52. The central axis of the automatic gun 74 is coaxial with the central axis of the middle accommodating block 52 and the central axis of the lower nut slot 45. In the above, the nut vibration plate, bolt feeding assembly, accommodating assembly, screwing assembly and transfer assembly are highly integrated, so that the layout is reasonable, the occupied space is reduced, and it has a wide applicability.

[0025] Another key point of the present invention is that a conveying assembly 8 is provided between the screwing assembly 7 and the bearing assembly 2 for vertically conveying the screwed bolts 101 and nuts 102 to the housing 100. The conveying assembly 8 at least includes a conveying frame 81, on which an upper conveying box 82 and a lower conveying box 83 are fixed. The lower conveying box 83 is located directly above the housing 100, and the upper conveying box 82 and the lower conveying box 83 are connected by a hose 84. The upper conveying box, the lower conveying box and the hose cooperate with each other to vertically convey the bolts, which is simple and convenient to operate, easy to disassemble, replace and repair, and greatly improves work efficiency. Specifically, the two ends of the hose 84 are respectively connected to the upper conveying box 82 and the lower conveying box 83, and the diameter of the hose 84 is equal to the diameter of the bolt 101, so that when the bolt with the nut tightened is dropped from the upper conveying box 82, it can only fall vertically downward through the hose 84 and the lower conveying box 83 to the shell 100. Compared with screwing the bolt into the shell horizontally, this conveying method does not require auxiliary fixtures, making the structure more compact and the layout more reasonable. It can also avoid the accidental falling of the bolt, thereby further improving the yield rate.

[0026] The conveying frame 81 is also fixed with a transmission frame 85, on which a transmission screw is pivotally provided, one end of which is in transmission connection with a transmission motor 86, and a transmission nut is provided on the transmission screw for screw transmission, and a transmission plate 87 is fixed on the transmission nut. The screw transmission can more accurately control the transfer position of the transfer plate 87, thereby improving the accuracy of the clamping cylinder 89 when clamping. A push-down cylinder 88 is fixed on the transmission plate 87, and a clamping cylinder 89 is fixed on the piston of the push-down cylinder 88.

[0027] A screwing assembly 9 for screwing the bolt 101 onto the housing 100 is provided above the conveying assembly 8. The screwing assembly 9 includes a driving frame 91 fixedly mounted on the conveying frame 81. A driving screw is pivotally mounted on the driving frame 91. One end of the driving screw is connected to a driving motor 92. A driving nut is provided on the driving screw for screw transmission. A driving plate 93 is fixedly mounted on the driving nut. The screw transmission can more accurately control the transfer position of the driving plate 93, thereby improving the accuracy of the screw gun 96 when tightening. A servo cylinder 94 is fixedly mounted on the driving plate 93. A fixing plate 95 is fixedly mounted on the cylinder shaft of the servo cylinder 94. A screw gun 96 is fixedly mounted on the fixing plate 95.

[0028] The working process of the present invention is briefly described below, which comprises the following steps: S1, the nut vibration plate 41 is started, and the nut 102 is transported to the output end of the nut vibration plate 41, the push-up cylinder 43 drives the nut support block 44 to move upward, and the pull-down cylinder 46 drives the pull-down plate 47 to move downward, until the lower nut clamping groove 45 and the upper nut clamping groove 48 cooperate to clamp the nut 102; at the same time, the bolt vibration bin 31 is started, and the bolt 101 is transported to the corresponding receiving groove 53 of the receiving block 52; S2, the pressing cylinder 64 drives the pressing plate 65 to move downward until the clamping cylinder 66 clamps the bolt 101 on the receiving block 52 at the end side of the bolt vibration bin 31, and the transfer cylinder 62 is started to drive the transfer plate 63 and the pressing cylinder 64 to move, so as to place the bolt 101 in the receiving groove 53 of the receiving block 52 in the middle; S3, the push cylinder 71 is started, driving the push plate 72 and the automatic gun 74 to move to the specified position, and the automatic gun 74 is started to screw the bolt 101 into the nut 102; S4, the pressing cylinder 64 is started again, driving the pressing plate 65 to move downward until the clamping cylinder 66 clamps the bolt 101 on the middle receiving block 52, and the transfer cylinder 62 is started again, driving the transfer plate 63 and the pressing cylinder 64 to move, and the tightened bolt 101 and nut 102 are placed in the receiving groove 53 of the receiving block 52 on the end side; S5, the push cylinder 88 is started, driving the clamping cylinder 89 to clamp the bolt 101, the transmission motor 86 is started, and the transmission plate 87 is driven to move to the top of the upper conveying box 82 through the transmission screw and the transmission nut in turn, and the clamping cylinder 89 releases the bolt 101, and the bolt 101 passes through the software 84 and the lower conveying box 83 and flows vertically into the housing 100; S6, the driving motor 92 is started, and the driving plate 93 is driven to move to the top of the housing 100 through the driving screw rod and the driving nut in sequence, and the screw gun 96 is started to screw the bolt 101 onto the housing 100.

[0029] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0030] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic assembly device for a thermal-magnetic release, comprising a frame (1), characterized in that: The frame (1) is provided with a bearing assembly (2) for bearing the housing (100); a bolt loading assembly (3) for loading bolts (101) and a nut loading assembly (4) for loading nuts (102) are provided on one side of the bearing assembly (2); output ends of the bolt loading assembly (3) and the nut loading assembly (4) are provided with a receiving assembly (5) for receiving the bolts (101) and the nuts (102); and a moving assembly (5) for clamping and transplanting the bolts (101) is provided above the receiving assembly (5). A carrier assembly (6), one side of the transfer assembly (6) is provided with a screwing assembly (7) for screwing the bolt (101) and the nut (102) on the accommodating assembly (5); a conveying assembly (8) is provided between the screwing assembly (7) and the carrier assembly (2) for vertically conveying the screwed bolt (101) and the nut (102) to the shell (100); and a screwing assembly (9) is provided above the conveying assembly (8) for screwing the bolt (101) onto the shell (100).

2. The automatic assembly device for the thermal-magnetic release according to claim 1, characterized in that: The nut feeding assembly (4) at least comprises a nut vibration plate (41) fixedly mounted on the frame (1); a nut support plate (42) is fixedly mounted at the output end of the nut vibration plate (41); an upward push cylinder (43) is fixedly mounted on one side of the nut support plate (42); a nut support block (44) is fixedly mounted on the cylinder shaft of the upward push cylinder (43); a lower nut retaining groove (45) matching the nut (102) is formed on the nut support block (44); a lower pull cylinder (46) is fixedly mounted on the other side of the nut support plate (42); a lower pull plate (47) is fixedly mounted on the cylinder shaft of the lower pull cylinder (46); and an upper nut retaining groove (48) matching the nut (102) is formed on the lower pull plate (47).

3. The automatic assembly device for the thermal-magnetic release according to claim 2, characterized in that: The bolt feeding assembly (3) comprises at least a bolt vibration bin (31) fixedly mounted on the frame (1), and an output end of the bolt vibration bin (31) is close to the accommodating assembly (5).

4. The automatic assembly device for the thermal-magnetic release according to claim 2, characterized in that: The accommodating assembly (5) comprises at least three equidistantly arranged accommodating support rods (51) fixedly mounted on the frame (1), each of the accommodating support rods (51) being fixedly mounted with a accommodating block (52), and the accommodating block (52) being provided with an accommodating groove (53) adapted to the bolt (101).

5. The automatic assembly device for the thermal-magnetic release according to claim 4, characterized in that: The screwing assembly (7) at least comprises a pushing cylinder (71) fixedly mounted on the frame (1); a pushing plate (72) is fixedly mounted on the cylinder shaft of the pushing cylinder (71); a pushing block (73) is fixedly mounted on the pushing plate (72); an automatic gun (74) is fixedly mounted on the pushing block (73); the automatic gun (74) is located on one side of the middle accommodating block (52); the central axis of the automatic gun (74) is coaxial with the central axis of the middle accommodating block (52) and the central axis of the lower nut slot (45).

6. The automatic assembly device for the thermal-magnetic release according to claim 5, characterized in that: The transfer assembly (6) at least comprises a transfer frame (61) fixedly mounted on the frame (1); a transfer cylinder (62) is fixedly mounted on the transfer frame (61); a transfer plate (63) is fixedly mounted on the piston of the transfer cylinder (62); a lower pressure cylinder (64) is fixedly mounted on the transfer plate (63); a lower pressure plate (65) is fixedly mounted on the piston of the lower pressure cylinder (64); a clamping cylinder (66) is fixedly mounted on the lower pressure plate (65); and a distance between the clamping cylinders (66) is equal to a distance between adjacent accommodating support rods (51).

7. The automatic assembly device for the thermal-magnetic release according to claim 6, characterized in that: The bearing assembly (2) comprises at least a bearing frame (21), a driving cylinder (22) being fixedly mounted on the bearing frame (21), a sliding plate (23) being fixedly mounted on the cylinder shaft of the driving cylinder (22), a group of bearing blocks (24) being fixedly mounted on the sliding plate (23), and the housing (100) being snap-connected to the bearing blocks (24).

8. The automatic assembly device for the thermal-magnetic release according to claim 7, characterized in that: The conveying assembly (8) at least comprises a conveying frame (81), an upper conveying box (82) and a lower conveying box (83) are fixedly provided on the conveying frame (81), the lower conveying box (83) is located directly above the shell (100), and the upper conveying box (82) and the lower conveying box (83) are connected via a hose (84); a transmission frame (85) is also fixedly provided on the conveying frame (81), a transmission screw is pivotally provided on the transmission frame (85), one end of the transmission screw is transmission-connected to a transmission motor (86), a transmission nut is provided on the transmission screw and is thread-driven with the transmission screw, a transmission plate (87) is fixedly provided on the transmission nut, a lower push cylinder (88) is fixedly provided on the transmission plate (87), a clamping cylinder (89) is fixedly provided on the piston of the lower push cylinder (88).

9. The automatic assembly device for the thermal-magnetic release according to claim 8, characterized in that: The screw connection assembly (9) comprises a driving frame (91) fixedly mounted on the conveying frame (81); a driving screw is pivotally mounted on the driving frame (91); one end of the driving screw is drivingly connected to a driving motor (92); a driving nut is mounted on the driving screw and is driven by the screw; a driving plate (93) is fixedly mounted on the driving nut; a servo cylinder (94) is fixedly mounted on the driving plate (93); a fixing plate (95) is fixedly mounted on the cylinder shaft of the servo cylinder (94); and a screw gun (96) is fixedly mounted on the fixing plate (95).

10. Automatic assembly method of thermal magnetic release, characterized in that: The steps include: S1, the nut vibration plate (41) is started, and the nut (102) is conveyed to the output end of the nut vibration plate (41), the upward push cylinder (43) drives the nut support block (44) to move upward, and the downward pull cylinder (46) drives the downward pull plate (47) to move downward, until the lower nut clamping groove (45) and the upper nut clamping groove (48) cooperate to clamp the nut (102); at the same time, the bolt vibration bin (31) is started, and the bolt (101) is conveyed to the corresponding receiving groove (53) of the receiving block (52); S2, the downward pressing cylinder (64) drives the downward pressing plate (65) to move downward until the clamping cylinder (66) clamps the bolt (101) on the receiving block (52) located at the end side of the bolt vibration bin (31), and the transfer cylinder (62) is started to drive the transfer plate (63) and the downward pressing cylinder (64) to move, so as to place the bolt (101) in the receiving groove (53) of the receiving block (52) located in the middle; S3, the pushing cylinder (71) is started to drive the pushing plate (72) and the automatic gun (74) to move to a specified position, and the automatic gun (74) is started to screw the bolt (101) into the nut (102); S4, the pressing cylinder (64) is started again to drive the pressing plate (65) to move downward until the clamping cylinder (66) clamps the bolt (101) on the middle receiving block (52), and the transfer cylinder (62) is started again to drive the transfer plate (63) and the pressing cylinder (64) to move, so as to place the tightened bolt (101) and nut (102) in the receiving groove (53) of the receiving block (52) on the end side; S5, the push cylinder (88) is started, driving the clamping cylinder (89) to clamp the bolt (101), the transmission motor (86) is started, and the transmission plate (87) is driven to move to the top of the upper conveying box (82) through the transmission screw and the transmission nut in sequence, the clamping cylinder (89) releases the bolt (101), and the bolt (101) passes through the software (84) and the lower conveying box (83) and flows vertically into the housing (100); S6, the driving motor (92) is started, and the driving plate (93) is driven to move to the top of the housing (100) through the driving screw and the driving nut in sequence, and the screw gun (96) is started to screw the bolt (101) onto the housing (100).

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