An automatic screw assembly device for a plastic case circuit breaker

Abstract

The present invention discloses an automatic screw assembling device for a plastic case circuit breaker, including: a carrying unit, which includes a workbench and two sets of symmetrically distributed sliding grooves opened on the upper surface of the workbench; an automatic placing unit, which includes two sets of symmetrically distributed moving and weighing frames slidably connected in the sliding grooves and two sets of symmetrically distributed first support plates fixedly connected to the upper surfaces of the moving and weighing frames; an assembling and installing unit, which includes two sets of symmetrically distributed auxiliary weighing frames slidably connected in the sliding grooves and an adjusting handle fixedly connected to one side of the auxiliary weighing frame; through the auxiliary weighing frame, the feeding frame, the second telescopic column, the inclined feeding plate, the placing hole, the trapezoidal plate and the inclined sliding groove, etc., the placing hole in the feeding frame places the screws, so as to push the pushing plate by the fifth telescopic column, and then use the clamping semi-ring plate inside the lifting pipe to conduct a preliminary assembling process on the screws, thereby preventing the screws from falling during the placing process.

Description

Technical Field

[0001] The present invention relates to the technical field of the structure of an automatic screw assembly device for a plastic case circuit breaker, and particularly to an automatic screw assembly device for a plastic case circuit breaker. Background Art

[0002] In the power distribution system, as a key circuit protection device, the plastic case circuit breaker is widely used in various electrical equipment and circuits to cut off the power supply in time when faults such as overload and short circuit occur in the circuit, thereby protecting the safety of the circuit and equipment. During the manufacturing process of the plastic case circuit breaker, the assembly of screws is an indispensable and crucial link, and its accuracy and efficiency directly affect the overall quality and production efficiency of the circuit breaker.

[0003] The traditional screw assembly process of the plastic case circuit breaker mainly relies on manual operation. Workers need to manually assemble screws onto the circuit breaker housing one by one. This method is not only inefficient but also has inconsistent assembly accuracy. With the rapid development of automation technology and the in-depth transformation of the manufacturing industry towards intelligentization, automatic assembly equipment has gradually been applied to the production lines of various products to improve production efficiency and assembly accuracy. However, when the existing automatic assembly equipment picks up screws, it usually needs to pick up screws separately and then perform assembly processing. When the head and tail positions of the screws are reversed, it is necessary to quickly screen them to facilitate picking up the screws with the heads facing up, resulting in a decrease in the selection and assembly speed. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing automatic screw assembly device for a plastic case circuit breaker, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an automatic screw assembly device for a plastic case circuit breaker, which is suitable for solving the problem that it is necessary to pick up screws separately and then perform assembly processing, and when the head and tail positions of the screws are reversed, it is necessary to quickly screen them.

[0007] To solve the above technical problems, the present invention provides the following technical solution: An automatic screw assembly device for a plastic case circuit breaker, the screw automatic assembly device includes:

[0008] A loading unit, which includes a workbench and two groups of symmetrically distributed sliding grooves opened on the upper surface of the workbench. Two groups of symmetrically distributed moving grooves are opened in the workbench. The loading unit further includes a clamping and discharging unit;

[0009] An automatic placement unit, comprising two groups of symmetrically distributed sliding grooves in which mobile weighing frames are slidably connected, and two groups of first support plates symmetrically distributed on the upper surface of the mobile weighing frames are fixedly connected, and two groups of symmetrically distributed lifting grooves are hollowed out on one side of each group of mobile weighing frames close to each other, and a first telescopic column is fixedly connected in each group of lifting grooves, one end of the telescopic shaft of the first telescopic column is fixedly connected to a connecting rod, and a weighing plate is fixedly connected to the upper surface of the connecting rod;

[0010] The assembly installation unit includes two groups of symmetrically distributed sliding grooves in which auxiliary weighing frames are slidably connected, and an adjustment handle fixedly connected to one side of the auxiliary weighing frame. A rotating mechanism is fixedly connected to the upper surface of the auxiliary weighing frame, a mounting column is fixedly connected to one side of the output shaft of the rotating mechanism, and a second telescopic column is fixedly connected to one side of the mounting column.

[0011] As a preferred solution of the automatic assembly device for screws of a molded case circuit breaker described in the present invention, the clamping and discharging unit includes a holding table slidably connected in a movable groove and a collecting groove opened on the upper surface of the holding table, one side of the holding table is fixedly connected to multiple groups of symmetrically distributed third telescopic columns, and one side of the telescopic shafts of the multiple groups of symmetrically distributed third telescopic columns are fixedly connected to a connecting plate, and the end of the connecting plate away from the telescopic shaft of the third telescopic column is fixedly connected to a buffer pad, the inner surface of the collecting groove is fixedly connected to two groups of symmetrically distributed support rods, one side of the support rod is rotatably connected to a drive shaft, and the outer surface of the drive shaft is fixedly connected to a transmission belt, and the outer surface of the transmission belt is fixedly connected to multiple groups of symmetrically distributed toggle plates, wherein one end of the drive shaft away from the support rod is fixedly connected to one end of the output shaft of the drive motor, and the drive motor is fixedly connected to the side of the holding table close to the support rod.

[0012] As a preferred solution of the automatic assembly device for screws of a molded case circuit breaker described in the present invention, wherein: a first adjusting motor is fixedly connected to one side of the workbench through a machine base, a second adjusting motor is fixed to the side of the workbench away from the first adjusting motor through a machine base, a first adjusting screw is fixedly connected to one end of the output shaft of the first adjusting motor, a second adjusting screw is fixedly connected to one end of the output shaft of the second adjusting motor, and a guide rod is fixedly connected in one group of the sliding grooves and the movable grooves.

[0013] As a preferred embodiment of the automatic screw assembling device for a plastic case circuit breaker according to the present invention, wherein: a fourth telescopic column is fixedly connected to the lower surface of the weighing plate, a fixed plate is fixedly connected to the lower surface of the fourth telescopic column, a plurality of symmetrically distributed electric screwdrivers are fixedly connected to the lower surface of the fixed plate, a transmission rod is fixedly connected to the lower surface of the output shaft of each electric screwdriver, one end of the transmission rod is fixedly connected to a connecting disk, a lifting frame is penetrated and connected in the connecting disk, and a first spring and a second spring are respectively fixedly connected to both sides of the lifting frame, and one side of the first spring and the second spring far away from both ends of the lifting frame are fixedly connected to both sides of the connecting disk, and a bolt assembling head is fixedly connected to one end of the lifting frame far away from the transmission rod.

[0014] As a preferred embodiment of the automatic screw assembling device for a plastic case circuit breaker according to the present invention, wherein: a trapezoidal plate is fixedly connected to the upper surface of the second telescopic column, two symmetrically distributed inclined blanking plates are fixedly connected to one side of the trapezoidal plate, an inclined support rod is fixedly connected to one side of the trapezoidal plate, a feeding frame is fixedly connected to the upper surface of the inclined support rod, a placing hole is opened in the feeding frame, a fifth telescopic column is fixedly connected to the inside of the feeding frame, a pushing plate is fixedly connected to one end of the fifth telescopic column, an inclined sliding groove is opened in each inclined blanking plate, a sixth telescopic column is fixedly connected to one side of each inclined blanking plate, and a clamping plate is fixedly connected to one side of the sixth telescopic column far away from the inclined blanking plate.

[0015] As a preferred embodiment of the automatic screw assembling device for a plastic case circuit breaker according to the present invention, wherein: a screw discharge hole is hollowly arranged inside one end of the second telescopic column far away from the mounting column, a connecting pipe is fixedly connected to the lower surface of the second telescopic column, a rotating motor is fixedly connected to the lower surface of the second telescopic column, a driving gear is fixedly connected to one end of the output shaft of the rotating motor, an L-shaped rod is fixedly connected to one end of the second telescopic column, a lifting pipe is snap-connected to one side of the L-shaped rod through a connecting rod, a driven gear is fixedly connected to the outer surface of the lifting pipe, a first electric telescopic rod is fixedly connected to the inner surface of the lifting pipe, and a clamping semi-ring plate is fixedly connected to one end of the first electric telescopic rod.

[0016] As a preferred embodiment of the automatic screw assembling device for a plastic case circuit breaker according to the present invention, wherein: symmetrically distributed clamping grooves are opened on the upper surface of the auxiliary weighing frame, an insertion groove is opened on one side of the auxiliary weighing frame close to the moving weighing frame, the protruding positions on the inner surface of the moving weighing frame are all adapted to the inner surfaces of the clamping grooves and the insertion groove, assembling grooves are opened on the upper surfaces of the auxiliary weighing frame and the moving weighing frame, a connecting groove is opened on one side of the L-shaped rod close to the lifting pipe, and the connecting groove is snap-connected to the outer surface of the lifting pipe through a connecting rod.

[0017] As a preferred solution of the automatic screw assembly device for a plastic case circuit breaker according to the present invention, wherein: one side of the driving gear meshes with one side of the driven gear, and one side of the mounting column is rotatably connected to a telescopic cylinder through a connecting shaft, and one end of the telescopic cylinder away from the mounting column is fixedly connected to one side of the second telescopic column through a connecting shaft.

[0018] As a preferred solution of the automatic screw assembly device for a plastic case circuit breaker according to the present invention, wherein: a first adjusting screw rod is arranged in the sliding groove, and a second adjusting screw rod is arranged in the moving groove. One side of the workbench close to the upper surface of the first adjusting motor is fixedly connected with a circuit breaker housing placing box, and a placing groove is opened in the circuit breaker housing placing box. A conveying placer is fixedly connected to the output shaft of the driving motor in the circuit breaker housing placing box.

[0019] As a preferred solution of the automatic screw assembly device for a plastic case circuit breaker according to the present invention, wherein: a discharge groove is opened on one side of the workbench close to the first adjusting motor, a track groove is opened on the upper surface of the workbench, and the upper surface of the track groove communicates with the placing groove and the connecting groove. A screw wrench joint is fixedly connected in the bolt assembly head, and the inside of the screw wrench joint is a regular hexagon connecting groove.

[0020] The beneficial effects of the present invention are:

[0021] 1. Through the second adjusting motor, the first adjusting motor, the sliding groove, the moving groove and the circuit breaker housing placing box, the first adjusting motor and the second adjusting motor adjust the position of the moving weighing frame. At the same time, the circuit breaker housing placing box is used to hold the circuit breaker to be assembled, and the moving groove drives the clamping and discharging unit on its inner surface to hold the circuit breaker, so as to quickly provide the unassembled circuit breaker housing during the assembly process;

[0022] 2. Through the moving weighing frame, the lifting groove, the fixing plate, the transmission rod, the bolt assembly head, the screw wrench joint, the connecting disc, the lifting frame, the second spring, the first spring and the weighing plate, the fourth telescopic column pushes the fixing plate to move downward along the track groove, so that the bolt assembly head on the lower surface of the electric screwdriver installs the screw fixed on the circuit breaker housing. Further, the first spring and the second spring buffer the impact force during the downward movement of the electric screwdriver. At the same time, driven by the electric screwdriver, the screw is assembled;

[0023] 3. The screws are placed in the placement holes in the loading frame through the auxiliary weighing frame, the loading frame, the second telescopic column, the inclined unloading plate, the placement holes, the trapezoidal plate and the inclined slide groove, so that the fifth telescopic column is used to push the push plate, and then the screws are automatically selected by using the inclined slide groove inside the inclined unloading plate. When the screw head is facing upward, the screw head is clamped and slid down through the inclined slide groove, so that the clamping plate is used to clamp the slid down screw, so that the screw discharge hole inside the second telescopic column receives the screw and makes it slide down, and then the first electric telescopic rod drives the clamping semi-ring plate to clamp and fix the slid down screw, so that the lifting tube is used to slide on the outer surface of the connecting tube, so that the driving gear and the secondary driving gear are meshed with each other, so that the lifting tube is driven to rotate by the rotating motor, so that the screw is preliminarily assembled by using the clamping semi-ring plate inside the lifting tube, so as to prevent the screw from falling during the placement process;

[0024] 4. Through the transmission belt, buffer pad, connecting plate and third telescopic column, the circuit breaker in the circuit breaker housing placement box is placed on the placing table, and then the third telescopic column is used to push the connecting plate to clamp the circuit breaker in the middle. When the circuit breaker housing is assembled, the third telescopic column on the side away from the transmission belt is used to push the circuit breaker housing, and at the same time, the third telescopic column on the other side is retracted, so that the toggle plate on the outer surface of the transmission belt to toggle the circuit breaker housing, so that it is discharged from the discharge chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0026] Figure 1 This is a schematic diagram of the overall structure of an automatic screw assembly device for a molded case circuit breaker proposed by the present invention;

[0027] Figure 2 A schematic diagram of the internal structure of a workbench of an automatic screw assembly device for a molded case circuit breaker proposed by the present invention;

[0028] Figure 3 A schematic diagram of the structure of a placing table of a molded case circuit breaker screw automatic assembly device proposed by the present invention;

[0029] Figure 4 This is a structural schematic diagram of an assembly and installation unit of an automatic assembly device for screws of a molded case circuit breaker proposed by the present invention;

[0030] Figure 5This is a structural schematic diagram of an automatic placement unit of a molded case circuit breaker screw automatic assembly device proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the electric screw distribution and the enlarged structure of the lifting frame of a molded case circuit breaker screw automatic assembly device proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the internal structure of a feeding frame of an automatic screw assembly device for a molded case circuit breaker proposed by the present invention;

[0033] Figure 8 The present invention provides a schematic diagram of the overall structure of a second telescopic column of an automatic screw assembly device for a molded case circuit breaker.

[0034] Description of the drawings: 100, bearing unit; 101, workbench; 102, sliding slot; 103, second adjusting motor; 104, moving slot; 105, circuit breaker housing placement box; 106, placement slot; 107, discharge slot; 108, first adjusting motor; 109, conveying placement device; 110, track slot; 111, first adjusting screw rod; 112, second adjusting screw rod; 200, automatic placement unit; 201, mobile weighing frame; 202, first A support plate; 203, a first telescopic column; 204, a lifting slot; 205, a fourth telescopic column; 206, a connecting rod; 207, an electric screwdriver; 208, a transmission rod; 209, a fixing plate; 210, a bolt assembly head; 211, a screw connection; 212, a connecting plate; 213, a lifting frame; 214, a second spring; 215, a first spring; 216, a weighing plate; 300, an assembly and mounting unit; 301, an auxiliary weighing frame; 302, an adjustment handle ; 303, rotating mechanism; 304, telescopic cylinder; 305, secondary gear; 306, L-shaped rod; 307, second telescopic column; 308, loading frame; 309, lifting tube; 310, connecting tube; 311, inclined unloading plate; 312, placement hole; 313, trapezoidal plate; 314, inclined slide; 315, clamping plate; 316, mounting column; 317, card slot; 318, insertion slot; 319, connecting shaft; 320, rotating motor; 32 1. Second telescopic rod; 322. Clamping half ring plate; 323. Screw discharge hole; 324. Fifth telescopic column; 325. First electric telescopic rod; 326. Inclined support rod; 327. Sixth telescopic column; 328. Push plate; 400. Clamping and discharging unit; 401. Serving table; 402. Transmission belt; 403. Buffer pad; 404. Connecting plate; 405. Third telescopic column; 406. Collecting trough; 407. Toggle plate; 408. Support rod. DETAILED DESCRIPTION

[0035] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings of the specification.

[0036] In the following description, numerous specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0037] Secondly, as used herein, an "embodiment" or "example embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in an embodiment" in different places in this specification do not all refer to the same embodiment, nor are they embodiments that are mutually exclusive of other embodiments individually or selectively.

[0038] Furthermore, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views showing the device structure are enlarged locally out of the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0039] Embodiment 1:

[0040] Referring to Figure 1 - Figure 8 , which is an embodiment of the present invention, provides an automatic assembly device for screws of a plastic case circuit breaker, including a carrying unit 100, an automatic placement unit 200, an assembly and installation unit 300, and a clamping and discharging unit 400.

[0041] Among them, the carrying unit 100 includes a workbench 101 and two sets of symmetrically distributed sliding grooves 102 opened on the upper surface of the workbench 101. Two sets of symmetrically distributed moving grooves 104 are opened in the workbench 101. The carrying unit 100 further includes a clamping and discharging unit 400;

[0042] Among them, the automatic placement unit 200 includes two sets of symmetrically distributed moving weighing frames 201 slidably connected in the sliding grooves 102, and two sets of symmetrically distributed first support plates 202 fixedly connected to the upper surfaces of the moving weighing frames 201. Two sets of symmetrically distributed lifting grooves 204 are hollowed out on one side of each set of moving weighing frames 201 close to each other, and a first telescopic column 203 is fixedly connected in each set of lifting grooves 204. One end of the telescopic shaft of the first telescopic column 203 is fixedly connected to a connecting rod 206, and a weighing plate 216 is fixedly connected to the upper surface of the connecting rod 206;

[0043] Among them, the assembly and installation unit 300 includes two groups of symmetrically distributed sliding grooves 102 in which an auxiliary weighing frame 301 is slidably connected and an adjustment handle 302 fixedly connected to one side of the auxiliary weighing frame 301, a rotating mechanism 303 is fixedly connected to the upper surface of the auxiliary weighing frame 301, a mounting column 316 is fixedly connected to one side of the output shaft of the rotating mechanism 303, and a second telescopic column 307 is fixedly connected to one side of the mounting column 316.

[0044] Furthermore, the clamping and discharging unit 400 includes a holding platform 401 slidably connected in the movable groove 104 and a collecting groove 406 opened on the upper surface of the holding platform 401, one side of the holding platform 401 is fixedly connected to multiple groups of symmetrically distributed third telescopic columns 405, and one side of the telescopic axis of the multiple groups of symmetrically distributed third telescopic columns 405 is fixedly connected to a connecting plate 404, one end of the connecting plate 404 away from the telescopic axis of the third telescopic column 405 is fixedly connected to a buffer pad 403, the inner surface of the collecting groove 406 is fixedly connected to two groups of symmetrically distributed support rods 408, one side of the support rods 408 is rotatably connected to a drive shaft, and A transmission belt 402 is fixedly connected to the outer surface of the driving shaft, and a plurality of symmetrically distributed toggle plates 407 are fixedly connected to the outer surface of the transmission belt 402, wherein one end of the driving shaft away from the support rod 408 is fixedly connected to one end of the output shaft of the driving motor, and the driving motor is fixedly connected to the side of the placing table 401 close to the support rod 408, wherein the middle position of the placing table 401 is a trapezoidal structure, so that after the circuit breaker housing is assembled, the circuit breaker housing is pushed toward the side of the transmission belt 402 through the single-sided third telescopic column 405, so that the assembled circuit breaker housing can be quickly discharged outward to a certain extent.

[0045] Furthermore, a first adjusting motor 108 is fixedly connected to one side of the workbench 101 through a machine base, a second adjusting motor 103 is fixed to the side of the workbench 101 away from the first adjusting motor 108 through a machine base, a first adjusting screw 111 is fixedly connected to one end of the output shaft of the first adjusting motor 108, and a second adjusting screw 112 is fixedly connected to one end of the output shaft of the second adjusting motor 103, wherein a group of sliding grooves 102 and movable grooves 104 are fixedly connected with guide rods, wherein the positions of the movable weighing frame 201 and the placing table 401 can be adjusted respectively by the first adjusting screw 111 and the second adjusting screw 112, and the sliding groove 102 and the adjustment handle 302 can also be used to drive the auxiliary weighing frame 301 to adjust its position.

[0046] Further, symmetrically distributed card slots 317 are provided on the upper surface of the auxiliary weighing frame 301, and an insertion slot 318 is provided on one side of the auxiliary weighing frame 301 close to the movable weighing frame 201. The convex positions on the inner surface of the movable weighing frame 201 are all adapted to the inner surfaces of the card slots 317 and the insertion slot 318. Assembly slots are provided on the upper surfaces of both the auxiliary weighing frame 301 and the movable weighing frame 201. A connection slot is provided on one side of the L-shaped rod 306 close to the lifting pipe 309, and the connection slot is snap-connected to the outer surface of the lifting pipe 309 through a connecting rod. Among them, the inner surface of the lifting pipe 309 is slidably connected to the outer surface of the connecting pipe 310, and the lifting pipe 309 can rotate around the outer surface of the connecting pipe 310. Thus, the lifting pipe 309 can lift and rotate on the outer surface of the connecting pipe 310. At the same time, one end of the connecting rod close to the lifting pipe 309 can be rotatably connected around its outer surface.

[0047] Further, one side of the driving gear 321 is meshed with one side of the driven gear 305. One side of the mounting column 316 is rotatably connected with a telescopic cylinder 304 through a connecting shaft 319. One end of the telescopic cylinder 304 far from the mounting column 316 is fixedly connected with one side of the second telescopic column 307 through a connecting shaft 319. Among them, the driving gear 321 drives the driven gear 305 to rotate. Thus, the driven gear 305 synchronously drives the lifting pipe 309 to rotate, so that the lifting pipe 309 drives the internal structure thereof to preliminarily install and place the screw.

[0048] Further, a first adjusting lead screw 111 is arranged in the sliding groove 102, and a second adjusting lead screw 112 is arranged in the moving groove 104. A circuit breaker housing placement box 105 is fixedly connected to one side of the upper surface of the workbench 101 close to the first adjusting motor 108. A placement groove 106 is provided in the circuit breaker housing placement box 105. A conveying placer 109 is fixedly connected to the output shaft of the driving motor in the circuit breaker housing placement box 105. Among them, the driving motor fixed in the circuit breaker housing placement box 105 drives the conveying placer 109, so as to quickly place the circuit breaker housing on the placing table 401.

[0049] Further, a discharge slot 107 is provided on one side of the workbench 101 close to the first adjusting motor 108. A track groove 110 is provided on the upper surface of the workbench 101, and the upper surface of the track groove 110 is communicated with the placement groove 106 and the connection groove. A screw wrench connector 211 is fixedly connected in the bolt assembly head 210, and the inside of the screw wrench connector 211 is a regular hexagon connection groove.

[0050] Working principle: Through the second adjustment motor 103, the first adjustment motor 108, the sliding groove 102, the moving groove 104 and the circuit breaker housing placement box 105, the first adjustment motor 108 and the second adjustment motor 103 adjust the position of the moving weighing frame 201. At the same time, the circuit breaker housing placement box 105 is used to hold the circuit breaker that needs to be assembled, and the moving groove 104 drives the clamping and discharging unit 400 on its inner surface to hold the circuit breaker, so as to quickly provide the unassembled circuit breaker housing during the assembly process;

[0051] Through the moving weighing frame 201, the lifting groove 204, the fixing plate 209, the transmission rod 208, the bolt assembly head 210, the screw screwing joint 211, the connecting disk 212, the lifting frame 213, the second spring 214, the first spring 215 and the weighing plate 216, the fourth telescopic column 205 pushes the fixing plate 209 to move downward along the track groove 110, so that the bolt assembly head 210 on the lower surface of the electric screwdriver 207 installs the screw fixed on the circuit breaker housing. Further, the first spring 215 and the second spring 214 buffer the impact force during the downward movement of the electric screwdriver 207. At the same time, driven by the electric screwdriver 207, the screw is assembled;

[0052] Through the auxiliary weighing frame 301, the feeding frame 308, the second telescopic column 307, the inclined feeding plate 311, the placement hole 312, the trapezoidal plate 313 and the inclined sliding groove 314, etc., the placement hole 312 in the feeding frame 308 places the screw. Thus, the fifth telescopic column 324 pushes the pushing plate 328, and then uses the inclined sliding groove 314 inside the inclined feeding plate 311 to automatically select the screw. When the head of the screw is facing up, the head of the screw is clamped and slides down through the inclined sliding groove 314. Thus, the clamping plate 315 clamps the sliding screw, and the screw discharge hole 323 inside the second telescopic column 307 receives the screw and makes it slide down. Then, the first electric telescopic rod 325 drives the clamping semi-circular plate 322 to clamp and fix the sliding screw. Thus, the lifting tube 309 slides on the outer surface of the connecting tube 310, so that the driving gear 321 meshes with the driven gear 305, and the rotation motor 320 drives the lifting tube 309 to rotate. Thus, the clamping semi-circular plate 322 inside the lifting tube 309 performs preliminary assembly on the screw, and further prevents the screw from falling during the placement process;

[0053] Through the drive belt 402, buffer pad 403, connecting plate 404 and the third telescopic column 405, the circuit breaker in the circuit breaker housing placement box 105 is placed through the placement table 401. Furthermore, the third telescopic column 405 is used to push the connecting plate 404 to clamp the circuit breaker in the middle. When the assembly of the circuit breaker housing is completed, the third telescopic column 405 on the side away from the drive belt 402 is used to push the circuit breaker housing, and at the same time, the third telescopic column 405 on the other side is contracted. As a result, the dial plate 407 on the outer surface of the drive belt 402 dials the circuit breaker housing, causing it to be discharged from the discharge slot 107.

[0054] Embodiment 2

[0055] Refer to Figure 2 - Figure 6 and Figure 8 Compared with Embodiment 1, the difference lies in that: a fourth telescopic column 205 is fixedly connected to the lower surface of the weighing plate 216. A fixing plate 209 is fixedly connected to the lower surface of the fourth telescopic column 205. A plurality of symmetrically distributed electric screwdrivers 207 are fixedly connected to the lower surface of the fixing plate 209. A transmission rod 208 is fixedly connected to the lower surface of the output shaft of each group of electric screwdrivers 207. One end of the transmission rod 208 is fixedly connected to an adapter plate 212. A lifting frame 213 is connected through the adapter plate 212. First springs 215 and second springs 214 are respectively fixedly connected to both sides of the lifting frame 213. One side of the first springs 215 and the second springs 214 away from both ends of the lifting frame 213 are fixedly connected to both sides of the adapter plate 212. A bolt assembly head 210 is fixedly connected to one end of the lifting frame 213 away from the transmission rod 208. Among them, when the bolt assembly head 210 at one end of the lifting frame 213 contacts the screw outside the circuit breaker housing through the first springs 215 and the second springs 214, the impact force generated when the two collide during contact is reduced, thereby improving the protection ability of the equipment and products to a certain extent.

[0056] Further, a trapezoidal plate 313 is fixedly connected to the upper surface of the second telescopic column 307. Two symmetrically distributed inclined feeding plates 311 are fixedly connected to one side of the trapezoidal plate 313. An inclined support rod 326 is fixedly connected to one side of the trapezoidal plate 313. The upper surface of the inclined support rod 326 is fixedly connected to a feeding frame 308. A placing hole 312 is formed in the feeding frame 308. A fifth telescopic column 324 is fixedly connected in the feeding frame 308. One end of the fifth telescopic column 324 is fixedly connected to a pushing plate 328. An inclined sliding groove 314 is formed in each of the two groups of inclined feeding plates 311. A sixth telescopic column 327 is fixedly connected to one side of each of the two groups of inclined feeding plates 311. The side of the sixth telescopic column 327 away from the inclined feeding plate 311 is fixedly connected to a clamping plate 315. Among them, a downwardly shrinking placing groove 106 is formed in the feeding frame 308 to limit the screws placed through the placing hole 312. Then, the pushing plate 328 is driven by the fifth telescopic column 324 to move in the placing groove 106, so that the pushing plate 328 pushes the screws, causing them to move into the inclined sliding groove 314. At the same time, the number of inclined feeding plates 311 is two, and the two inclined feeding plates 311 are not connected. Therefore, the screws with their heads facing down or inclined in the initial state fall from below the inclined feeding plates 311, thereby avoiding the influence of selecting screws in the wrong state on the assembly of the circuit breaker housing to a certain extent.

[0057] Further, a screw discharge hole 323 is hollowed out inside one end of the second telescopic column 307 away from the mounting column 316. A connecting pipe 310 is fixedly connected to the lower surface of the second telescopic column 307. A rotating motor 320 is fixedly connected to the lower surface of the second telescopic column 307. One end of the output shaft of the rotating motor 320 is fixedly connected to a driving gear 321. One end of the second telescopic column 307 is fixedly connected to an L-shaped rod 306. One side of the L-shaped rod 306 is snap-connected to a lifting pipe 309 through a connecting rod. A driven gear 305 is fixedly connected to the outer surface of the lifting pipe 309. A first electric telescopic rod 325 is fixedly connected to the inner surface of the lifting pipe 309. One end of the first electric telescopic rod 325 is fixedly connected to a clamping semi-ring plate 322. Among them, during the downward sliding of the screws, the first electric telescopic rod 325 quickly clamps them with the clamping semi-ring plate 322 and blocks the screws that are about to fall from above.

[0058] Working principle: First, the circuit breaker housing placement box 105 and the feeding frame 308 are used to store the circuit breaker and screws respectively. Then, the output shaft of the first adjustment motor 108 drives the second adjustment screw rod 112 to rotate, so that the second adjustment screw rod 112 drives the moving weighing frame 201 to move in the sliding groove 102, and then the assembly groove on the upper surface of the auxiliary weighing frame 301 is exposed. Thus, the rotating mechanism 303 drives the mounting column 316 and its surface structure as a whole to deflect, so that the lifting pipe 309 on one side of the mounting column 316 rotates into the assembly groove on the upper surface of the auxiliary weighing frame 301.

[0059] Secondly, due to the different positions of the screw holes above the circuit breaker housing, the second telescopic column 307 is required to adjust the position of the lifting pipe 309 to ensure that the lifting pipe 309 moves above the screw hole. Then, the screws are placed through the placement holes 312 in the feeding frame 308, enabling automatic selection of screws during the assembly process. The fifth telescopic column 324 is used to push the push plate 328, and then the inclined chute 314 inside the inclined feeding plate 311 is used to automatically select the screws. When the head of the screw faces upward, the head of the screw is engaged and slides down through the inclined chute 314, and then the clamping plate 315 clamps the sliding screw.

[0060] At the same time, the opening below the inclined feeding plate 311 can be used to exclude non-compliant screws, allowing the non-compliant screws to be re-placed through the placement holes 312. The screw discharge hole 323 inside the second telescopic column 307 receives the screws and allows them to slide down. Then, the first electric telescopic rod 325 drives the clamping semi-ring plate 322 to clamp and fix the sliding screws. The lifting pipe 309 slides on the outer surface of the connecting pipe 310, causing the driving gear 321 and the driven gear 305 to mesh with each other. The rotation motor 320 drives the lifting pipe 309 to rotate, and the clamping semi-ring plate 322 inside the lifting pipe 309 is used to perform preliminary assembly on the screws, preventing the screws from falling out of the screw holes during placement and thus improving the overall assembly efficiency of the equipment to a certain extent.

[0061] Furthermore, after the pre-installation of the screws is completed, the rotation mechanism 303 is used to drive the mounting post 316 back to its original position to avoid affecting the subsequent installation steps to a certain extent. The output shaft of the first adjustment motor 108 is used to drive the second adjustment screw rod 112 to rotate again, so that the assembly groove on the upper surface of the moving weighing frame 201 coincides with the assembly groove on the upper surface of the auxiliary weighing frame 301. The circuit breaker housing is placed on the placing table 401 through the circuit breaker housing placing box 105. The buffer pad 403 on one side of the connecting plate 404 is driven by the third telescopic column 405 to move closer to and clamp the circuit breaker housing, keeping the circuit breaker housing stable on the upper surface of the placing table 401.

[0062] Further, the first adjusting screw rod 111 is used to drive the placing table 401 to move in the movable groove 104, and the circuit breaker housing on the upper surface of the placing table 401 is moved to the bottom of the fourth telescopic column 205, and the fourth telescopic column 205 is used to drive the fixing plate 209 and the electric screwdriver 207 thereunder to descend as a whole, and further, the bolt assembly head 210 under the electric screwdriver 207 is in contact with the screw, so that the screw can fully assemble the circuit breaker housing under the drive of the electric screwdriver 207, and then the fixing plate 209 is lifted, so that the third telescopic column 405 on one side pushes the circuit breaker housing to the side of the transmission belt 402, and then the transmission belt 402 is driven to rotate by the motor inside the placing table 401, so that the circuit breaker housing is driven to be discharged to the side of the discharge trough 107 by the toggle plate 407, and then the subsequent assembly work is repeated.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic screw assembling device for a plastic case circuit breaker, characterized in that, The screw automatic assembly device includes: A carrying unit (100), which includes a workbench (101) and two sets of symmetrically distributed sliding grooves (102) opened on the upper surface of the workbench (101). Two sets of symmetrically distributed moving grooves (104) are opened in the workbench (101). The carrying unit (100) further includes a clamping and discharging unit (400). A first adjusting screw rod (111) is arranged in the sliding groove (102), and a second adjusting screw rod (112) is arranged in the moving groove (104). One side of the upper surface of the workbench (101) close to the first adjusting motor (108) is fixedly connected with a breaker housing placement box (105), and a placement groove (106) is opened in the breaker housing placement box (105). A conveying placer (109) is fixedly connected to the output shaft of the driving motor in the breaker housing placement box (105); An automatic placement unit (200), which includes two sets of symmetrically distributed moving weighing frames (201) slidably connected in the sliding grooves (102) and two sets of symmetrically distributed first support plates (202) fixedly connected to the upper surfaces of the moving weighing frames (201). Two sets of symmetrically distributed lifting grooves (204) are hollowed out on one side of each group of the moving weighing frames (201) close to each other, and a first telescopic column (203) is fixedly connected in each group of the lifting grooves (204). One end of the telescopic shaft of the first telescopic column (203) is fixedly connected with a connecting rod (206). A weighing plate (216) is fixedly connected to the upper surface of the connecting rod (206). One side of the workbench (101) is fixedly connected with a first adjusting motor (108) through a machine base, and a second adjusting motor (103) is fixed on the side of the workbench (101) far from the first adjusting motor (108) through a machine base. One end of the output shaft of the first adjusting motor (108) is fixedly connected with a first adjusting screw rod (111), and one end of the output shaft of the second adjusting motor (103) is fixedly connected with a second adjusting screw rod (112). Guide rods are fixedly connected in one of the sets of the sliding grooves (102) and the moving grooves (104); An assembly and installation unit (300), which includes two sets of symmetrically distributed auxiliary weighing frames (301) slidably connected in the sliding grooves (102) and an adjusting handle (302) fixedly connected to one side of the auxiliary weighing frame (301). A rotating mechanism (303) is fixedly connected to the upper surface of the auxiliary weighing frame (301). One side of the output shaft of the rotating mechanism (303) is fixedly connected with an installation column (316). A second telescopic column (307) is fixedly connected to one side of the installation column (316).

2. The automatic screw assembling device for a plastic case circuit breaker according to claim 1, wherein: The clamping and discharging unit (400) comprises a holding platform (401) slidably connected in the moving groove (104) and a collecting groove (406) provided on the upper surface of the holding platform (401); one side of the holding platform (401) is fixedly connected to a plurality of groups of symmetrically distributed third telescopic columns (405); one side of the telescopic axes of the plurality of groups of symmetrically distributed third telescopic columns (405) are fixedly connected to a connecting plate (404); an end of the connecting plate (404) away from the telescopic axes of the third telescopic columns (405) is fixedly connected to a buffer pad (403); ), the inner surface of the collecting tank (406) is fixedly connected to two groups of symmetrically distributed support rods (408), one side of the support rod (408) is rotatably connected to a drive shaft, and the outer surface of the drive shaft is fixedly connected to a transmission belt (402), and the outer surface of the transmission belt (402) is fixedly connected to multiple groups of symmetrically distributed toggle plates (407), wherein one end of the drive shaft away from the support rod (408) is fixedly connected to one end of the output shaft of the drive motor, and the drive motor is fixedly connected to a side of the holding platform (401) close to the support rod (408).

3. The automatic screw assembling device for a plastic case circuit breaker according to claim 1, wherein: The lower surface of the weighing plate (216) is fixedly connected to a fourth telescopic column (205), the lower surface of the fourth telescopic column (205) is fixedly connected to a fixing plate (209), the lower surface of the fixing plate (209) is fixedly connected to a plurality of symmetrically distributed electric screwdrivers (207), the lower surface of the output shaft of each group of the electric screwdrivers (207) is fixedly connected to a transmission rod (208), one end of the transmission rod (208) is fixedly connected to a connecting plate (212), a lifting frame (213) is connected through the connecting plate (212), and the two sides of the lifting frame (213) are respectively fixedly connected to a first spring (215) and a second spring (214), the first spring (215) and the second spring (214) are fixedly connected to the two sides of the connecting plate (212) away from the two ends of the lifting frame (213), and the lifting frame (213) is fixedly connected to one end of the connecting plate (212) away from the transmission rod (208).

4. An automatic screw assembly device for a plastic case circuit breaker according to claim 3, characterized in that: A trapezoidal plate (313) is fixedly connected to the upper surface of the second telescopic column (307), two groups of symmetrically distributed inclined blanking plates (311) are fixedly connected to one side of the trapezoidal plate (313), an inclined support rod (326) is fixedly connected to one side of the trapezoidal plate (313), a loading frame (308) is fixedly connected to the upper surface of the inclined support rod (326), a placement hole (312) is provided in the loading frame (308), a fifth telescopic column (324) is fixedly connected in the loading frame (308), one end of the fifth telescopic column (324) is fixedly connected to a pushing plate (328), each group of the inclined blanking plates (311) is provided with an inclined slide groove (314), each group of the inclined blanking plates (311) is fixedly connected to one side of a sixth telescopic column (327), and a clamping plate (315) is fixedly connected to the side of the sixth telescopic column (327) away from the inclined blanking plates (311).

5. The automatic screw assembling device for a plastic case circuit breaker according to claim 4, characterized in that: One end of the second telescopic column (307) far from the mounting column (316) is hollowed out to be provided with a screw discharge hole (323). A connecting pipe (310) is fixedly connected to the lower surface of the second telescopic column (307). A rotating motor (320) is fixedly connected to the lower surface of the second telescopic column (307). One end of the output shaft of the rotating motor (320) is fixedly connected to a driving gear (321). An L-shaped rod (306) is fixedly connected to one end of the second telescopic column (307). A lifting pipe (309) is connected to one side of the L-shaped rod (306) through a connecting rod in a clamping manner. A driven gear (305) is fixedly connected to the outer surface of the lifting pipe (309). A first electric telescopic rod (325) is fixedly connected to the inner surface of the lifting pipe (309). One end of the first electric telescopic rod (325) is fixedly connected to a clamping semi-circular plate (322).

6. The automatic screw assembling device for molded case circuit breaker according to claim 5, characterized in that: Symmetrically distributed card slots (317) are formed in the upper surface of the auxiliary weighing frame (301). An insertion slot (318) is formed in one side of the auxiliary weighing frame (301) close to the moving weighing frame (201). The protruding positions on the inner surface of the moving weighing frame (201) are all adapted to the inner surfaces of the card slots (317) and the insertion slot (318). Assembly grooves are formed in the upper surfaces of both the auxiliary weighing frame (301) and the moving weighing frame (201). A connecting slot is formed in one side of the L-shaped rod (306) close to the lifting pipe (309), and the connecting slot is connected to the outer surface of the lifting pipe (309) through a connecting rod in a clamping manner.

7. An automatic assembly device for screws of a plastic case circuit breaker according to claim 6, characterized in that: One side of the driving gear (321) meshes with one side of the driven gear (305). One side of the mounting column (316) is rotatably connected to a telescopic cylinder (304) through a connecting shaft (319). One end of the telescopic cylinder (304) far from the mounting column (316) is fixedly connected to one side of the second telescopic column (307) through a connecting shaft (319).

8. An automatic screw assembling device for a plastic case circuit breaker according to claim 7, characterized in that: A discharge slot (107) is formed in one side of the workbench (101) close to the first adjustment motor (108). A track slot (110) is formed in the upper surface of the workbench (101), and the upper surface of the track slot (110) is communicated with the placement slot (106) and the connecting slot. A screw wrench head (211) is fixedly connected inside the bolt assembly head (210), and the inside of the screw wrench head (211) is a regular hexagon connecting slot.

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