Automatic screw assembling device for molded case circuit breaker

Abstract

The invention discloses a molded case circuit breaker screw automatic assembling device which comprises a bearing unit, an automatic placing unit, a screw assembling unit, a screw assembling unit, a screw assembling unit, a screw assembling unit and a screw assembling unit, and the bearing unit comprises a workbench and two sets of sliding grooves symmetrically distributed in the upper surface of the workbench. The device comprises two groups of movable weighing frames which are slidably connected in sliding grooves which are symmetrically distributed, and two groups of first supporting plates which are symmetrically distributed on the upper surfaces of the movable weighing frames and are fixedly connected with the upper surfaces of the movable weighing frames. The auxiliary weighing frames are slidably connected in two groups of symmetrically distributed sliding grooves, and the adjusting handles are fixedly connected to one sides of the auxiliary weighing frames; through an auxiliary weighing frame, a feeding frame, a second telescopic column, an inclined discharging plate, a placement hole, a trapezoidal plate, an inclined sliding groove and the like, screws are placed in the placement hole in the feeding frame, so that a pushing plate is pushed through a fifth telescopic column, and the screws are preliminarily assembled through a clamping semi-ring plate in a lifting pipe; and therefore, the screws are prevented from falling off in the placement process.

Description

Technical Field

[0001] The invention relates to the technical field of automatic screw assembly devices for molded case circuit breakers, and in particular to an automatic screw assembly device for molded case circuit breakers. Background Art

[0002] In the power distribution system, molded case circuit breakers are a key circuit protection device, widely used in various electrical equipment and lines, used to cut off the power supply in time when the circuit is overloaded, short-circuited or other faults occur, thereby protecting the safety of circuits and equipment. In the manufacturing process of molded case circuit breakers, 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 molded case circuit breakers mainly relies on manual operation. Workers need to manually assemble the screws one by one onto the circuit breaker housing. This method is not only inefficient, but also has inconsistent assembly accuracy. With the rapid development of automation technology and the deepening of intelligent transformation of the manufacturing industry, automated assembly equipment is gradually applied to production lines of various products to improve production efficiency and assembly accuracy. However, when taking screws, existing automated assembly equipment usually needs to take the screws separately and then assemble them. When the head and tail positions of the screws are reversed, they need to be quickly screened to facilitate the picking of screws with the heads facing up, which reduces the selection and assembly speed. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing automatic screw assembly device for molded case circuit breakers, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide an automatic assembly device for screws of molded case circuit breakers, which is suitable for solving the problem that the screws need to be picked up individually and then assembled, and when the head and tail positions of the screws are reversed, they need to be quickly screened.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic screw assembly device for a molded case circuit breaker, the automatic screw assembly device comprising:

[0008] A bearing unit, comprising a workbench and two sets of sliding grooves symmetrically distributed on the upper surface of the workbench, wherein two sets of symmetrically distributed moving grooves are provided in the workbench, and the bearing unit further comprises 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 solution of the automatic assembly device for screws of a molded case circuit breaker described in 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 groups 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 group of electric screwdrivers, one end of the transmission rod is fixedly connected to a connecting plate, a lifting frame is connected through the connecting plate, and a first spring and a second spring are fixedly connected to both sides of the lifting frame respectively, the first spring and the second spring are fixedly connected to both sides of the connecting plate at one side away from the two ends of the lifting frame, and a bolt assembly head is fixedly connected to one end of the lifting frame away from the transmission rod.

[0014] As a preferred solution of the automatic assembly device for screws of a molded case circuit breaker described in the present invention, wherein: a trapezoidal plate is fixedly connected to the upper surface of the second telescopic column, two groups of 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 loading frame is fixedly connected to the upper surface of the inclined support rod, a placement hole is provided in the loading frame, a fifth telescopic column is fixedly connected in the loading frame, one end of the fifth telescopic column is fixedly connected to a pushing plate, an inclined slide groove is provided in each group of the inclined blanking plates, a sixth telescopic column is fixedly connected to one side of each group of the inclined blanking plates, and a clamping plate is fixedly connected to the side of the sixth telescopic column away from the inclined blanking plate.

[0015] As a preferred solution of the automatic screw assembly device for a molded case circuit breaker described in the present invention, wherein: the second telescopic column is hollowed out at one end away from the mounting column to provide a screw discharge hole, 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 tube is connected to one side of the L-shaped rod through a connecting rod, a secondary driving gear is fixedly connected to the outer surface of the lifting tube, a first electric telescopic rod is fixedly connected to the inner surface of the lifting tube, and a clamping semi-ring plate is fixedly connected to one end of the first electric telescopic rod.

[0016] As a preferred solution of the automatic assembly device for screws of a molded case circuit breaker described in the present invention, wherein: the upper surface of the auxiliary weighing frame is provided with symmetrically distributed card slots, the side of the auxiliary weighing frame close to the mobile weighing frame is provided with an insertion slot, the protruding positions on the inner surface of the mobile weighing frame are adapted to the card slots and the inner surfaces of the insertion slots, the upper surfaces of the auxiliary weighing frame and the mobile weighing frame are provided with assembly slots, the side of the L-shaped rod close to the lifting tube is provided with a connecting groove, and the connecting groove is engaged and connected with the outer surface of the lifting tube through a connecting rod.

[0017] As a preferred solution of the automatic screw assembly device for a molded case circuit breaker described in the present invention, one side of the driving gear is meshed with one side of the secondary driving gear, one side of the mounting column is rotatably connected to a telescopic cylinder via 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 via a connecting shaft.

[0018] 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 screw is arranged in the sliding groove, and a second adjusting screw is arranged in the movable groove, a circuit breaker housing placement box is fixedly connected to the side of the workbench close to the upper surface of the first adjusting motor, and a placement slot is opened in the circuit breaker housing placement box, and a conveying placer is fixedly connected to the circuit breaker housing placement box through the output shaft of the driving motor.

[0019] As a preferred solution of the automatic screw assembly device for a molded case circuit breaker described in the present invention, a discharge trough is provided on the side of the workbench close to the first adjustment motor, a track groove is provided on the upper surface of the workbench, and the upper surface of the track groove is connected to the placement groove and the connecting groove, a screw tightening joint is fixedly connected inside the bolt assembly head, and the interior of the screw tightening joint is a regular hexagonal connecting groove.

[0020] Beneficial effects of the present invention:

[0021] 1. The first adjusting motor and the second adjusting motor adjust the position of the movable weighing frame through the second adjusting motor, the first adjusting motor, the sliding slot, the moving slot and the circuit breaker housing placement box. At the same time, the circuit breaker housing placement box is used to hold the circuit breaker that needs to be assembled, and the moving slot drives the clamping and discharging unit on its inner surface to hold the circuit breaker, so that the unassembled circuit breaker housing can be quickly provided during the assembly process;

[0022] 2. By moving the weighing frame, the lifting groove, the fixing plate, the transmission rod, the bolt assembly head, the screw tightening joint, the connecting plate, 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 screws fixed on the circuit breaker housing, and the first spring and the second spring are further used to buffer the impact force of the electric screwdriver during the descent process, and at the same time, driven by the electric screwdriver, the screws are 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 a molded case circuit breaker screw automatic assembly device 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] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0038] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0039] Embodiment 1:

[0040] Reference Figure 1 - Figure 8 , which is an embodiment of the present invention, provides an automatic assembly device for screws of a molded 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] The carrying unit 100 includes a workbench 101 and two sets of sliding grooves 102 symmetrically distributed on the upper surface of the workbench 101. Two sets of moving grooves 104 symmetrically distributed are provided in the workbench 101. The carrying unit 100 also includes a clamping and discharging unit 400.

[0042] The automatic placement unit 200 includes two groups of symmetrically distributed sliding grooves 102 in which a mobile weighing frame 201 is slidably connected, and two groups of symmetrically distributed first support plates 202 are fixedly connected to the upper surface of the mobile weighing frame 201. Two groups of symmetrically distributed lifting grooves 204 are hollowed out on one side of each group of mobile weighing frames 201 close to each other, and each group of lifting grooves 204 is fixedly connected to a first telescopic column 203, one end of the telescopic axis 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 position of the auxiliary weighing frame 301 can also be adjusted by the sliding groove 102 and the adjustment handle 302.

[0046] Furthermore, 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 the side of the auxiliary weighing frame 301 close to the mobile weighing frame 201. The protruding positions on the inner surface of the mobile weighing frame 201 are adapted to the inner surfaces of the card slots 317 and the insertion slots 318. Assembly slots are provided on the upper surfaces of the auxiliary weighing frame 301 and the mobile weighing frame 201. A connecting slot is provided on the side of the L-shaped rod 306 close to the lifting tube 309, and the connecting slot is engaged and connected with the outer surface of the lifting tube 309 through a connecting rod, wherein the inner surface of the lifting tube 309 is slidably connected to the outer surface of the connecting tube 310, and the lifting tube 309 can rotate around the outer surface of the connecting tube 310, so that the lifting tube 309 can be lifted and rotated on the outer surface of the connecting tube 310, and at the same time, the end of the connecting rod close to the lifting tube 309 can be rotatably connected around its outer surface.

[0047] Furthermore, one side of the driving gear 321 is meshed with one side of the secondary gear 305, one side of the mounting column 316 is rotatably connected to the telescopic cylinder 304 via the connecting shaft 319, and one end of the telescopic cylinder 304 away from the mounting column 316 is fixedly connected to one side of the second telescopic column 307 via the connecting shaft 319, wherein the driving gear 321 drives the secondary gear 305 to rotate, and then the secondary gear 305 is used to synchronously drive the lifting tube 309 to rotate, so that the lifting tube 309 drives its internal structure to perform preliminary installation and placement of the screws.

[0048] Furthermore, a first adjusting screw rod 111 is provided in the sliding groove 102, and a second adjusting screw rod 112 is provided in the movable 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, and a placement groove 106 is provided in the circuit breaker housing placement box 105, and a conveying placer 109 is fixedly connected to the circuit breaker housing placement box 105 through the output shaft of the driving motor, wherein the driving motor fixed in the circuit breaker housing placement box 105 drives the conveying placer 109, thereby quickly placing the circuit breaker housing on the placing table 401.

[0049] Furthermore, a discharge trough 107 is provided on one side of the workbench 101 close to the first adjustment 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 connected to the placement groove 106 and the connecting groove, a screw tightening joint 211 is fixedly connected inside the bolt assembly head 210, and the interior of the screw tightening joint 211 is a regular hexagonal connecting groove.

[0050] Working principle: The first adjusting motor 108 and the second adjusting motor 103 adjust the position of the movable weighing frame 201 through the second adjusting motor 103, the first adjusting motor 108, the sliding slot 102, the moving slot 104 and the circuit breaker housing placement box 105. 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 slot 104 drives the clamping and discharging unit 400 on its inner surface to hold the circuit breaker, so that it can quickly provide an unassembled circuit breaker housing during the assembly process;

[0051] By moving the weighing frame 201, the lifting slot 204, the fixing plate 209, the transmission rod 208, the bolt assembly head 210, the screw screw joint 211, the connecting plate 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 slot 110, so that the bolt assembly head 210 on the lower surface of the electric screwdriver 207 installs the screws fixed on the circuit breaker housing, and the first spring 215 and the second spring 214 are further used to buffer the impact force of the electric screwdriver 207 during the descent process, and at the same time, driven by the electric screwdriver 207, it assembles the screws;

[0052] The auxiliary weighing frame 301, the loading frame 308, the second telescopic column 307, the inclined blanking plate 311, the placement hole 312, the trapezoidal plate 313 and the inclined slide groove 314 are used to place the screw in the placement hole 312 in the loading frame 308, so that the fifth telescopic column 324 is used to push the push plate 328, and then the inclined slide groove 314 inside the inclined blanking plate 311 is used to automatically select the screw. When the screw head faces upward, the screw head is clamped and slid down through the inclined slide groove 314, so that the clamping plate 315 is used to clamp the slid down screw. The screw is closed so that the screw discharge hole 323 inside the second telescopic column 307 receives the screw and makes it slide down, and then the first electric telescopic rod 325 drives the clamping semi-ring plate 322 to clamp and fix the screw that slides down, so that the lifting tube 309 slides on the outer surface of the connecting tube 310, so that the driving gear 321 and the secondary driving gear 305 are meshed with each other, and the lifting tube 309 is driven to rotate by the rotating motor 320, so that the screw is preliminarily assembled by the clamping semi-ring plate 322 inside the lifting tube 309, so as to prevent the screw from falling during the placement process;

[0053] Through the transmission belt 402, the buffer pad 403, the connecting plate 404 and the third telescopic column 405, the circuit breaker in the circuit breaker housing placement box 105 is placed on the placing table 401, and then the third telescopic column 405 is used to push the connecting plate 404 to clamp the circuit breaker in the middle. When the circuit breaker housing is assembled, the third telescopic column 405 on the side away from the transmission 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 retracted, so that the toggle plate 407 on the outer surface of the transmission belt 402 to toggle the circuit breaker housing, so that it is discharged from the discharge chute 107.

[0054] Embodiment 2

[0055] Reference Figure 2 - Figure 6 and Figure 8 , compared with the first embodiment, the difference is that: the lower surface of the weighing plate 216 is fixedly connected to the fourth telescopic column 205, the lower surface of the fourth telescopic column 205 is fixedly connected to the fixing plate 209, the lower surface of the fixing plate 209 is fixedly connected to multiple groups of symmetrically distributed electric screwdrivers 207, each group of electric screwdrivers 207 The lower surface of the output shaft is fixedly connected to a transmission rod 208, one end of the transmission rod 208 is fixedly connected to a connecting plate 212, the connecting plate 212 is penetrated and connected to a lifting frame 213, and the two sides of the lifting frame 213 are respectively fixedly connected to the first spring 2 15 and the second spring 214, the first spring 215 and the second spring 214 are fixedly connected to both sides of the connecting plate 212 at one side away from the two ends of the lifting frame 213, and the lifting frame 213 is fixedly connected to the end away from the transmission rod 208 with a bolt assembly head 210, wherein the first spring 215 and the second spring 214 make the bolt assembly head 210 at one end of the lifting frame 213 contact the screw outside the circuit breaker housing, thereby reducing the impact force generated by the collision between the two when in contact, thereby improving the protection capability of the equipment and products to a certain extent.

[0056] Furthermore, a trapezoidal plate 313 is fixedly connected to the upper surface of the second telescopic column 307, and two groups of symmetrically distributed inclined blanking plates 311 are fixedly connected to one side of the trapezoidal plate 313, and an inclined support rod 326 is fixedly connected to one side of the trapezoidal plate 313, and a loading frame 308 is fixedly connected to the upper surface of the inclined support rod 326, and a placement hole 312 is provided in the loading frame 308, and a fifth telescopic column 324 is fixedly connected in the loading frame 308, and a push plate 328 is fixedly connected to one end of the fifth telescopic column 324, and an inclined slide groove 314 is provided in each group of inclined blanking plates 311, and a sixth telescopic column 327 is fixedly connected to one side of each group of inclined blanking plates 311, and the sixth telescopic column 327 is away from the inclined lower A clamping plate 315 is fixedly connected to one side of the material plate 311, wherein a downwardly contracting placement groove 106 is opened in the loading frame 308, so that the screws placed in the placement hole 312 are limited, and then the push plate 328 is driven by the fifth telescopic column 324 to move in the placement groove 106, so that the push plate 328 pushes the screw to move into the inclined slide groove 314. At the same time, there are two groups of inclined unloading plates 311, and the two groups of inclined unloading plates 311 are not connected, so that the screws with their heads facing downward or tilted in the initial state fall from under the inclined unloading plates 311, thereby avoiding to a certain extent the selection of screws in the wrong state that affects the assembly of the circuit breaker housing.

[0057] Furthermore, a screw discharge hole 323 is hollowed out at 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, a driving gear 321 is fixedly connected to one end of the output shaft of the rotating motor 320, an L-shaped rod 306 is fixedly connected to one end of the second telescopic column 307, a lifting tube 309 is connected to one side of the L-shaped rod 306 through a connecting rod, a secondary driving gear 305 is fixedly connected to the outer surface of the lifting tube 309, a first electric telescopic rod 325 is fixedly connected to the inner surface of the lifting tube 309, and a clamping semi-ring plate 322 is fixedly connected to one end of the first electric telescopic rod 325, wherein the first electric telescopic rod 325 uses the clamping semi-ring plate 322 to quickly clamp the screw when the screw slides down, and blocks the screw that is about to fall from the top.

[0058] Working principle: First, the circuit breaker and the screw are stored in the circuit breaker housing placement box 105 and the loading frame 308 respectively, and then the second adjusting screw 112 is driven to rotate by the output shaft of the first adjusting motor 108, so that the second adjusting screw 112 drives the movable weighing frame 201 to move in the sliding groove 102, so that the assembly groove on the upper surface of the auxiliary weighing frame 301 is exposed, and then the rotating mechanism 303 is used to drive the installation column 316 and its surface structure as a whole to deflect, so that the lifting tube 309 on one side of the installation column 316 is rotated 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 tube 309 to ensure that the lifting tube 309 moves to the top of the screw hole, and then the screws are placed using the placement holes 312 in the loading frame 308, so that the screws can be automatically selected during the assembly process, and the fifth telescopic column 324 is used to push the push plate 328, and then the inclined slide groove 314 inside the inclined unloading plate 311 is used to automatically select the screws. When the screw head is facing upward, the screw head is clamped and slid down through the inclined slide groove 314, so that the clamping plate 315 is used to clamp the slid down screw;

[0060] At the same time, the opening below the inclined blanking plate 311 can be used to exclude non-compliant screws, so that the non-compliant screws can be re-introduced from the placement hole 312, so that the screw discharge hole 323 inside the second telescopic column 307 can receive the screws and make them slide down, and then the first electric telescopic rod 325 drives the clamping semi-ring plate 322 to clamp and fix the sliding screws, so that the lifting tube 309 is slid on the outer surface of the connecting tube 310, so that the driving gear 321 and the secondary driving gear 305 are meshed with each other, so that the lifting tube 309 is driven to rotate by the rotating motor 320, so that the screws are preliminarily assembled by the clamping semi-ring plate 322 inside the lifting tube 309, so as to prevent the screws from falling off from the screw holes during the placement process, thereby improving the overall assembly efficiency of the equipment to a certain extent;

[0061] Further, after the pre-installation of the screws is completed, the rotating mechanism 303 is used again to drive the installation column 316 to return to its original position to prevent it from affecting the subsequent installation steps to a certain extent, and the output shaft of the first adjustment motor 108 is further used to drive the second adjustment screw 112 to rotate again, so that the assembly groove on the upper surface of the mobile weighing frame 201 overlaps with the assembly groove on the upper surface of the auxiliary weighing frame 301 again, and the circuit breaker housing is placed on the placing table 401 by using the circuit breaker housing placement box 105, and the buffer pad 403 on one side of the connecting plate 404 is driven by the third telescopic column 405 to approach the circuit breaker housing for clamping, so that the circuit breaker housing is kept 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 assembly device for a molded case circuit breaker, characterized in that: The automatic screw assembly device comprises: A carrying unit (100), comprising a workbench (101) and two groups of sliding grooves (102) symmetrically distributed on the upper surface of the workbench (101), two groups of symmetrically distributed moving grooves (104) being provided in the workbench (101), and the carrying unit (100) further comprising a clamping and discharging unit (400); The automatic placement unit (200) comprises two groups of symmetrically distributed sliding grooves (102) in which a mobile weighing frame (201) is slidably connected, and two groups of symmetrically distributed first support plates (202) are fixedly connected on the upper surface of the mobile weighing frame (201), and two groups of symmetrically distributed lifting grooves (204) are hollowed out on the side close to each other of each group of the mobile weighing frames (201), and a first telescopic column (203) is fixedly connected in each group of the lifting grooves (204), and a connecting rod (206) is fixedly connected to one end of the telescopic axis of the first telescopic column (203), and a weighing plate (216) is fixedly connected to the upper surface of the connecting rod (206); An assembly installation unit (300) comprises two groups of symmetrically distributed sliding grooves (102) in which auxiliary weighing frames (301) are 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).

2. The automatic screw assembly device for a molded case circuit breaker according to claim 1, characterized in that: The clamping and discharging unit (400) comprises a holding platform (401) slidably connected in a movable 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 shafts 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 shaft of the third telescopic column (405) is fixedly connected to a buffer pad (403); ), the inner surface of the collecting tank (406) is fixedly connected with two groups of symmetrically distributed support rods (408), one side of the support rod (408) is rotatably connected with a drive shaft, and the outer surface of the drive shaft is fixedly connected with a transmission belt (402), and the outer surface of the transmission belt (402) is fixedly connected with 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 the side of the holding platform (401) close to the support rod (408).

3. The automatic screw assembly device for a molded case circuit breaker according to claim 1, characterized in that: A first adjusting motor (108) is fixedly connected to one side of the workbench (101) via a machine base, and a second adjusting motor (103) is fixedly connected to one side of the workbench (101) away from the first adjusting motor (108) via a machine base, one end of the output shaft of the first adjusting motor (108) is fixedly connected to a first adjusting screw rod (111), and one end of the output shaft of the second adjusting motor (103) is fixedly connected to a second adjusting screw rod (112), wherein a set of the sliding grooves (102) and the movable grooves (104) are both fixedly connected to guide rods.

4. The automatic screw assembly device for a molded case circuit breaker according to claim 1, characterized in that: The lower surface of the weighing plate (216) is fixedly connected to a fourth telescopic column (205), and 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), and 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), and 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), and the first spring (215) and the second spring (214) are fixedly connected to the two sides of the connecting plate (212) at one side away from the two ends of the lifting frame (213), and the lifting frame (213) is fixedly connected to a bolt assembly head (210) at one end away from the transmission rod (208).

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

6. The automatic screw assembly device for a molded case circuit breaker according to claim 5, characterized in that: A screw discharge hole (323) is hollowed out at 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); an 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 connected to a lifting tube (309) through a connecting rod; the outer surface of the lifting tube (309) is fixedly connected to a secondary driving gear (305); the inner surface of the lifting tube (309) is fixedly connected to a first electric telescopic rod (325); one end of the first electric telescopic rod (325) is fixedly connected to a clamping semi-ring plate (322).

7. The automatic screw assembly device for a molded case circuit breaker according to claim 6, characterized in that: The upper surface of the auxiliary weighing frame (301) is provided with symmetrically distributed card slots (317); the side of the auxiliary weighing frame (301) close to the mobile weighing frame (201) is provided with an insertion slot (318); the protruding positions of the inner surface of the mobile weighing frame (201) are adapted to the inner surfaces of the card slots (317) and the insertion slots (318); the upper surfaces of the auxiliary weighing frame (301) and the mobile weighing frame (201) are provided with assembly slots; the side of the L-shaped rod (306) close to the lifting tube (309) is provided with a connecting slot, and the connecting slot is engaged and connected with the outer surface of the lifting tube (309) through a connecting rod.

8. The automatic screw assembly device for a molded case circuit breaker according to claim 7, characterized in that: One side of the driving gear (321) is meshed with one side of the secondary driving gear (305); one side of the mounting column (316) is rotatably connected to a telescopic cylinder (304) via a connecting shaft (319); and one end of the telescopic cylinder (304) away from the mounting column (316) is fixedly connected to one side of a second telescopic column (307) via a connecting shaft (319).

9. The automatic screw assembly device for a molded case circuit breaker according to claim 8, characterized in that: 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); 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), and a placement groove (106) is provided in the circuit breaker housing placement box (105); and a conveying placement device (109) is fixedly connected to the circuit breaker housing placement box (105) via an output shaft of a driving motor.

10. The automatic screw assembly device for a molded case circuit breaker according to claim 9, characterized in that: A discharge trough (107) is provided on one side of the workbench (101) close to the first adjustment 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 connected to the placement groove (106) and the connection groove; a screw joint (211) is fixedly connected inside the bolt assembly head (210), and the interior of the screw joint (211) is a regular hexagonal connection groove.

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