CN217890134U - Screw tightening device - Google Patents

Abstract

The utility model provides a screw tightening device, which comprises a fixing frame, install the horizontal migration mechanism on the mount, install in the vertical migration mechanism that horizontal migration mechanism removed the end and install in the subassembly of screwing up that vertical migration mechanism removed the end, it includes screws up the slide rail to screw up the subassembly, screw up the slider, screw up the sliding seat, screw up the elastic component, screw up the motor, screwdriver and screw suction nozzle, it removes the end in vertical migration mechanism to screw up the vertical arrangement of slide rail, it slides and sets up in screwing up the slide rail to screw up the slider, it is fixed in on screwing up the slider to screw up the sliding seat, it locates to screw up the elastic component and removes between the end with vertical migration mechanism, screw up motor and screw suction nozzle and install respectively in the top and the bottom of screwing up the sliding seat, screwdriver is connected in the output shaft of screwing up the motor, the bottom of screwdriver is worn to locate in the screw suction nozzle. The screw tightening device is low in cost, improves the mounting efficiency and the operation stability of the screw, and prolongs the service life.

Description

Screw tightening device

Technical Field

The utility model relates to a tooth case equipment technical field, concretely relates to screw tightening device.

Background

As is well known, the gear box is also called a return wave box, which increases or decreases the speed of rotation by meshing gears with different sizes, and the general principle is to drive by using a spring and gear transmission, so that mechanisms such as a sweeper and the like are driven to achieve the purpose of running or rotating. In the tooth case equipment, the tradition method all relies on artifical equipment, and is not only inefficient, intensity of labour is big, and manufacturing cost is high, and the product quality of making moreover is unstable, and the qualification rate is low, can't satisfy the production demand of enterprise. Tooth case equipment needs to adopt the screw to install fixedly, and at present, the intelligence electricity on the market is criticized the price ratio higher, generally more than ten thousand at every cover, however, ordinary electricity is criticized stability not good enough, breaks down easily and damages, and life is shorter, can not adapt to the utility model is used for the locking of screw. Therefore, it is highly desirable to design a new screw tightening device.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a screw tightening device to solve with high costs, stability not good enough, the shorter problem of life.

The technical scheme of the utility model:

the utility model provides a screw tightening device, which comprises a fixed rack, install the horizontal migration mechanism on the mount, install in the vertical migration mechanism that horizontal migration mechanism removed the end and install in the subassembly of screwing up that vertical migration mechanism removed the end, it includes screws up the slide rail to screw up the subassembly, screw up the slider, screw up the sliding seat, screw up the elastic component, screw up the motor, screwdriver and screw suction nozzle, screw up the vertical arrangement of slide rail and remove the end in vertical migration mechanism, it slides to set up in screwing up the slide rail to screw up the slider, it is fixed in on screwing up the slider to screw up the sliding seat, it locates to screw up the elastic component and remove between the end with vertical migration mechanism to screw up the sliding seat, screw up motor and screw suction nozzle and install respectively in the top and the bottom of screwing up the sliding seat, screwdriver is connected in the output shaft of screwing up the motor, the bottom of screwdriver is worn to locate in the screw suction nozzle.

Further, horizontal migration mechanism includes horizontal slide rail, horizontal slider and horizontal sliding seat, and horizontal slide rail level arranges on the mount, and horizontal slider slides and sets up on horizontal slide rail, and horizontal sliding seat is fixed in on the horizontal slider.

Further, horizontal migration mechanism includes horizontal drive motor, horizontal main synchronizing wheel, horizontal slave synchronizing wheel and horizontal hold-in range, horizontal drive motor is fixed in on the mount, horizontal main synchronizing wheel is fixed in on horizontal drive motor's the output shaft, horizontal slave synchronizing wheel rotates and connects on the mount, horizontal main synchronizing wheel and horizontal slave synchronizing wheel are horizontal respectively and are arranged in the both ends of horizontal slide rail, horizontal hold-in range is around locating horizontal main synchronizing wheel and horizontal slave synchronizing wheel, horizontal hold-in range is connected in order to drive horizontal sliding seat reciprocating motion with the horizontal sliding seat, vertical migration mechanism installs on the horizontal sliding seat.

Furthermore, the vertical moving mechanism comprises a vertical sliding rail, a vertical sliding block and a vertical sliding seat, the vertical sliding rail is fixed on the horizontal sliding seat and is perpendicular to the horizontal sliding block, the vertical sliding block is slidably arranged on the vertical sliding rail, and the vertical sliding seat is fixed on the vertical sliding block.

Furthermore, the vertical moving mechanism comprises a vertical cylinder arranged at the top end of the horizontal sliding seat, and a piston rod of the vertical cylinder is connected with the vertical sliding seat.

Furthermore, the tightening slide rail is provided with one, the tightening slide rail is provided with two tightening slide blocks in a sliding mode, and the tightening slide seat is fixed on the two tightening slide blocks.

Furthermore, the tightening assembly further comprises a vacuum detection switch and an air suction device, the vacuum detection switch is used for detecting whether the screw is sucked or not, the air suction device is connected with the screw suction nozzle through an air pipe, and the vacuum detection switch is installed at the top end of the vertical sliding seat and connected onto the air pipe.

Further, tighten the subassembly still including being used for adjusting to tighten the adjusting bolt that the elastic component received pressure, the regulation hole has been seted up on perpendicular sliding seat top, and adjusting bolt wears to locate the regulation hole, and adjusting bolt bottom spiro union is on tightening the sliding seat, and the adjusting bolt periphery is located to the elastic component cover of screwing up.

Furthermore, the tightening assembly further comprises a bearing seat, a coupler, a connecting shaft and a shaft sleeve, the bearing seat is fixed on the tightening sliding seat, the top end of the coupler is fixed on an output shaft of the tightening motor, the top end of the connecting shaft is fixed at the bottom end of the coupler, the connecting shaft is rotatably mounted on the bearing seat, the shaft sleeve is fixed at the bottom end of the connecting shaft, and a screwdriver is detachably mounted in the shaft sleeve.

The utility model has the advantages that:

the screw tightening device is matched with the tightening assembly through the arrangement of the fixing frame, the horizontal moving mechanism, the vertical moving mechanism and the tightening assembly, the tightening assembly is matched with the tightening sliding rail, the tightening sliding block, the tightening sliding seat, the tightening elastic piece, the tightening motor, the screwdriver and the screw suction nozzle, the vertical moving mechanism and the tightening assembly can be driven to move to the position right above the screw feeder through the horizontal moving mechanism, the vertical moving mechanism drives the tightening assembly to descend, the screw suction nozzle of the tightening assembly sucks one screw of the screw feeder, the bottom end of the screwdriver is connected with a nut of the sucked screw in an inserting mode, the horizontal moving mechanism drives the vertical moving mechanism and the tightening assembly to move to the position right above a screwing hole of a workpiece to be screwed, the vertical moving mechanism drives the tightening assembly to descend, the bottom end of the screw sucked by the screw suction nozzle abuts against the screwing hole of the workpiece to be screwed, the tightening elastic piece is compressed, the tightening motor drives the screwdriver and the screwing screw to rotate, and the tightening elastic piece is matched with the tightening elastic piece to provide downward elastic force, and the screw is screwed into the screwing hole of the workpiece to be screwed. The screw tightening device adopting the scheme has the advantages of simple and compact structure and lower cost, and can automatically complete the installation of screws and improve the installation efficiency of the screws. The output shaft of the screwdriver and the output shaft of the tightening motor are in rigid connection, so that the problem of swing of the screwdriver is solved, and the screwdriver is more convenient to replace. As the tightening elastic piece is arranged between the tightening sliding seat and the moving end of the vertical moving mechanism, the axial direction of the tightening motor cannot bear force in the screw tightening process, the abrasion of the tightening motor can be reduced, the running stability in the screw tightening process is improved, and the service life of the tightening motor is effectively prolonged.

The preferred embodiments of the present invention and their advantageous effects will be described in further detail with reference to specific embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings there is shown in the drawings,

fig. 1 is a schematic structural view of an assembled workpiece according to the present invention;

FIG. 2 is a schematic view of a first perspective three-dimensional structure of the tooth box assembling machine of the present invention;

FIG. 3 is a schematic view of a second perspective three-dimensional structure of the tooth box assembling machine of the present invention;

FIG. 4 is a schematic view of the structure of the tooth box assembling machine of the present invention;

FIG. 5 is a schematic top view of the tooth box assembling machine of the present invention;

FIG. 6 is a schematic perspective view of the positioning and conveying device of the tooth box assembling machine of the present invention;

FIG. 7 is a schematic view of the positioning and conveying device of the tooth box assembling machine of the present invention;

FIG. 8 is a schematic top view of the positioning and conveying device of the tooth box assembling machine of the present invention;

fig. 9 is a schematic perspective view of the jacking assembly of the tooth box assembling machine of the present invention;

FIG. 10 is a schematic structural view of the box shell loading device of the tooth box assembling machine of the present invention;

fig. 11 is a schematic perspective view of the transfer mechanism of the tooth box assembling machine of the present invention;

fig. 12 is a schematic perspective view of the screw tightening device of the tooth box assembling machine of the present invention;

FIG. 13 is a schematic front view of the screw tightening device of the tooth box assembling machine of the present invention;

fig. 14 is a schematic side view of the screw tightening device of the tooth box assembling machine of the present invention.

The reference numbers illustrate: the box shell 10, the motor 20, the tire 30, the frame 1, the positioning and conveying device 2, the box shell loading device 3, the screw tightening device 4, the screw feeder 5, the first conveying line 21, the carrier 22, the positioning mechanism 23, the conveying frame 211, the conveying motor 212, the driving wheel 213, the tensioning wheel 214, the driven wheel 215, the conveying belt 216, the guide strip 217, the support post 2111, the section 2112, the connecting plate 2113, the driving wheel 218, the conveying belt 219, the bottom plate 221, the positioning block 222, the blocking piece 231, the jacking component 232, the clamping component 233, the jacking frame 2321, the guide sleeve 2322, the guide rod 2323, the jacking plate 2324, the sliding base 2325, the elastic component 2326, the pushing cylinder 2327, the pushing block 2328, the loading support 31, the translation mechanism 32, the lifting mechanism 33, the sliding mechanism the grabbing mechanism 34, the translation guide rail 321, the translation seat 322, the translation cylinder 323, the buffer 324, the lifting slide block 331, the lifting rail 332, the lifting cylinder 333, the clamping jaw cylinder 341, the clamping jaw 342, the carrying mechanism 6, the transfer mechanism 7, the transfer frame 71, the transfer slide rail 72, the slave synchronizing wheel 73, the master synchronizing wheel 74, the master synchronizing belt 75, the slave synchronizing belt 76, the transfer motor 77, the transfer positioning seat 78, the fixing frame 41, the horizontal moving mechanism 42, the vertical moving mechanism 43, the tightening component 44, the tightening slide rail 441, the tightening slide block 442, the tightening slide seat 443, the tightening elastic element 444, the tightening motor 445, the screwdriver 446, the screw suction nozzle, the horizontal slide rail 421, the horizontal slide block 422, the horizontal slide seat 423 and the horizontal driving motor 424, the horizontal main synchronizing wheel 425, the horizontal auxiliary synchronizing wheel 426, the horizontal synchronous belt 427, the vertical sliding rail 431, the vertical sliding block 432, the vertical sliding seat 433, the vertical air cylinder 434, the vacuum detection switch 448, the adjusting bolt 449, the bearing seat 450, the coupling 451, the connecting shaft 452, the shaft sleeve 453 and the second conveying line 8.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Please refer to fig. 1 to 5, the utility model provides a tooth case kludge, the tooth case equipment of mainly used sweeper, the tooth case includes case shell 10, motor 20 and tire 30, and outside the main part of motor 10 passed through the screw fixation in case shell 10, the output shaft of motor 10 inserted in case shell 10, installs the pivot on the tire 30, and the pivot is worn to locate in the shaft hole of case shell 10 to rotationally install tire 30 outside case shell 10. The utility model provides a tooth case kludge is used for screwing up case shell 10 and motor 10's main part screw to cooperate the installation with case shell 10 and tire 30, so that accept a former assembly process and cooperate a back assembly process, play the effect after opening before taking over, realize continuous assembly. The gearbox assembling machine comprises a rack 1, a positioning and conveying device 2, a gearbox shell feeding device 3, a screw tightening device 4 and a screw feeder 5, wherein the positioning and conveying device 2 is arranged on the rack 1, the positioning and conveying device 2 comprises a first conveying line 21, a carrier 22 and a positioning mechanism 23, the first conveying line 21 is fixed on the rack 1, the carrier 22 is borne on the first conveying line 21 for conveying, the carrier 22 is used for bearing a motor 20 and a tire 30 and positioning the motor 20 and the tire 30, a gearbox shell assembling station and a screw tightening station are arranged on the first conveying line 21, and the positioning mechanism 23 is arranged on the gearbox shell assembling station and the screw tightening station of the first conveying line 21 so as to position the carrier 22 which is conveyed on the first conveying line 21 and is loaded with the motor 20 and the tire 30 at corresponding stations respectively. The box shell feeding device 3 is arranged on the frame 1 and close to a box shell assembling station, so that the clamping box shell 10 is sleeved on an output shaft of the motor 20 and a rotating shaft of the tire 30 on the carrier 22 positioned by the positioning mechanism 23 at the box shell assembling station, and the assembling positions of the box shell 10, the motor 20 and the tire 30 are determined. The screw tightening device 4 and the screw feeder 5 are disposed on the frame 1 at a screw tightening station of the first conveyor line 21, so that the screws are taken out from the screw feeder 5 by the screw tightening device 4 and the motor 20 and the case 10 on the positioned carrier 22 are screwed. The first transfer line 21 transfers the assembly of the housing 10, the motor 20 and the tires 30 after being tightened to the latter assembly equipment for further assembly.

The utility model discloses tooth case kludge, through set up location conveyor 2 in frame 1, case shell loading attachment 3, screw tightening device 4 and screw feeder 5 cooperate, location conveyor 2 is through setting up first transfer chain 21, carrier 22 and positioning mechanism 23 cooperate, earlier place motor 20 and tire 30 on carrier 22 and advance line location, carrier 22 bears motor 20 and tire 30 and is carried to case shell equipment station by first transfer chain 21, positioning mechanism 23 fixes a position the carrier 22 of case shell equipment station department, case shell loading attachment 3 presss from both sides and gets in the output shaft of motor 20 and the pivot of tire 30 that case shell 10 emboliaed on carrier 22 after the location, thereby confirm case shell 10, the equipment position of motor 20 and tire 30. Then, the positioning mechanism 23 releases the carrier 22, the carrier 22 is conveyed to the screw tightening station, the positioning mechanism 23 at the screw tightening station positions the carrier 22, and the screw tightening device 4 takes out the screws from the screw feeders 5 and screws the motors 20 and the case 10 on the positioned carrier 22. The positioning mechanism 23 then releases the carrier 22 and the first transfer line 21 transfers the tightened assembly of the enclosure 10, motor 20 and tires 30 to the latter assembly equipment for further assembly. Therefore, the utility model discloses the automatic equipment of case shell 10, motor 20 and tire 30 can be realized to the tooth case assembly machine to can effectively link up the preceding, back equipment process of tooth case assembly line, realize the tooth case and assemble in succession, improve packaging efficiency, tooth case quality and qualification rate, reduce human cost and intensity of labour, thereby satisfy the production demand of enterprise better.

Referring to fig. 6 to 8, in the embodiment, the first conveying line 21 includes a conveying frame 211, a conveying motor 212, a driving wheel 213, a tensioning wheel 214, driven wheels 215, a conveying belt 216, and a guiding strip 217, the conveying frame 211 is fixed on the frame 1, the conveying motor 212 is fixed at the bottom of the conveying frame 211 and located at the middle position of the conveying frame 211, the driving wheel 213 is fixed on an output shaft of the conveying motor 212, the two driven wheels 215 are mounted on the conveying frame 211 through transmission shafts and located at two inner sides of the middle position of the conveying frame 211, the driving wheel 213 is connected with the transmission shaft at the middle position of the conveying frame 211 to drive the conveying frame 211 to rotate, the tensioning wheel 214 is rotatably mounted at two sides of the conveying frame 211 above each driven wheel 215, and the two tensioning wheels 214 and the driven wheels 215 at each side of the conveying frame 211 are arranged in a triangular shape. Two driven wheels 215 are rotatably mounted on two inner sides of two ends of the conveying frame 211, and a tension wheel 214 and a conveying belt 216 are wound on the driven wheel 215 on each side of the conveying frame 211. Guide strips 217 are arranged on two sides of the conveying frame 211, and the two guide strips 217 are used for respectively bearing the ascending sections of the two conveying frames 211 and forming guide grooves for conveying the carriers 22. The carriers 22 are carried on two conveyor belts 216 and positioned in the guide grooves for conveyance. This first transfer chain 21 is through being fixed in the conveyor motor 212 in the carriage 211 bottom and being located the intermediate position department of carriage 211, driven wheel 215 and two take-up pulleys 214 that the triangle-shaped of the intermediate position department of driving carriage 211 through conveyor motor 212 was arranged rotate, thereby drive two conveyer belts 216 and rotate, gib block 217 provides support and guide effect for conveyer belt 216, make the carrier 22 who bears on conveyer belt 216 can smoothly carry along the guide way direction, vacate the space at conveyor frame 211 both ends and install positioning mechanism 23 and with preceding, the linking of back equipment process equipment, driven wheel 215 and two take-up pulleys 214 through the triangle-shaped arrangement can effectively tension conveyer belt 216, avoid conveyer belt 216 to skid, transportation stability has been promoted. It should be understood that the above-mentioned solution is only a preferred embodiment of the first conveying line 21, but the first conveying line 21 is not limited to the above-mentioned solution as long as the device for conveying the carrier 22 can be realized.

In this embodiment, a convex strip is disposed on the surface of the conveying belt 216 contacting with the driven wheel 215, a limit groove adapted to the convex strip is formed on the peripheries of the driven wheel 215 and the tension wheel 214, the convex strip of the conveying belt 216 is disposed in the limit groove of the driven wheel 215 and the tension wheel 214, a sliding groove adapted to the convex strip is formed on the surface of the guide strip 217 contacting with the conveying belt 216, and the convex strip of the conveying belt 216 is disposed in the sliding groove of the guide strip 217. In this way, the conveyor belt 216 can be prevented from slipping, and the conveying stability can be further improved.

In this embodiment, the carriage 211 includes pillar 2111, section bar 2112 and connecting plate 2113, and pillar 2111 includes the cylinder and is fixed in the flange seat of cylinder bottom, and the flange seat is fixed in frame 1, and the cylinder top is equipped with the mounting groove, and section bar 2112 is installed in the dress inslot on two cylinder tops, and section bar 2112 parallel arrangement has two, and every section bar 2112 supports on frame 1 through two pillar 2111, passes through connecting plate 2113 fixed connection between two section bars 2112. The conveying frame 211 adopting the structure has the advantages of simple structure, convenient material taking and easy manufacture.

In this embodiment, the first conveying line 21 further includes a driving wheel 218 and a driving belt 219, a driving shaft of the driven wheel 215 at the middle position of the conveying frame 211 extends to the outside of the conveying frame 211, the driving wheel 218 is fixed at the extending end of the driving shaft, and the driving wheel 218 is connected with the driving wheel 213 of the conveying motor 212 through the driving belt 219. Like this, be convenient for conveying motor 212 and the transmission shaft from driving wheel 215 realize the transmission and be connected, simple structure, the assembly of being convenient for, the cost is lower, can with the utility model discloses it suits to suit. Of course, the transmission connection between the transmission motor 212 and the transmission shaft of the driven wheel 215 is not limited to this, and may be, for example, a gear transmission or a chain transmission.

In this embodiment, the carrier 22 includes a bottom plate 221 supported on the conveyor 216 and a positioning block 222 fixed on the bottom plate 221, the positioning block 222 is provided with a motor positioning hole and a tire positioning hole, and the positions of the motor positioning hole and the tire positioning hole correspond to the installation positions on the housing 10 for respectively placing the motor 20 and the tire 30 for positioning.

In this embodiment, the positioning mechanism 23 includes a blocking member 231, a jacking member 232, and a clamping member 233, a position sensor is disposed at the positioning mechanism 23 to detect whether a workpiece on the carrier 22 reaches the assembly station, the blocking member 231 is fixed at a lower position between the two conveyor belts 216 to block the carrier 22 on the conveyor belts 216 and on which the workpiece is placed, the jacking member 232 is fixed between the two conveyor belts 216 and is located at a lower position of the blocked carrier 22 to lift the blocked carrier 22 off the conveyor belts 216, and the clamping member 233 is relatively mounted at two sides of the conveyor frame 211 to clamp the lifted carrier 22. If the position sensor detects the workpiece on the carrier 22 conveyed by the conveyor belt 216, the blocking member 231 moves upward to block the carrier 22, the carrier 22 slides relative to the conveyor belt 216, then the lifting assembly 232 lifts the blocked carrier 22 away from the conveyor belt 216, and then the clamping assembly 233 moves to clamp the lifted carrier 22, so that the clamped carrier 22 facilitates the assembly of the box shell 10 and the screw tightening device 4 on the motor 20 and the tire 30 of the carrier 22 in sequence and the screwing of the screw. Through blockking piece 231, jacking subassembly 232 and clamping component 233 to placing the carrier 22 of work piece and blockking in proper order, jacking and the clamping action respectively, whole action process is simple, link up, and positioning speed is fast to can realize the accurate location of carrier 22, thereby the equipment of the case shell of being convenient for and the tightening of screw.

In this embodiment, the blocking member 231 is a blocking cylinder, a main body of the blocking cylinder is fixed on the conveying frame 211 and located at a lower position between the two conveying belts 216, and a piston rod of the blocking cylinder is used for blocking the carrier 22. The bottom of the carrier 22 (i.e. the bottom plate 221) is provided with a blocking groove adapted to the piston rod of the blocking cylinder, so that the piston rod extending out of the blocking cylinder slides into the blocking groove to block the movement of the carrier 22. Adopt to block the cylinder and block carrier 22, simple structure easily realizes, and the cost is lower, can adapt to betterly the utility model discloses well carrier 22 blocks the location. It is to be understood that the blocking member 231 is not limited to the blocking cylinder, and a telescopic driving means such as a push rod motor may be used to perform the blocking function.

Referring to fig. 9, in the embodiment, the jacking assembly 232 includes a jacking frame 2321, guide sleeves 2322, guide rods 2323, a jacking plate 2324, a sliding base 2325, an elastic member 2326, a pushing cylinder 2327 and a pushing block 2328, the jacking frame 2321 is fixed below the two conveyor belts 216, the two guide sleeves 2322 are fixed on the jacking frame 2321, each guide sleeve 2322 slidably penetrates through the guide rod 2323, the jacking plate 2324 is connected to the top ends of the two guide rods 2323, the sliding base 2325 is connected to the bottom ends of the two guide rods 2323, the elastic member 2326 is sleeved on the guide rod 2323 and is located between the guide sleeve 2322 and the sliding base 2325, the pushing cylinder 2327 is horizontally fixed at the bottom of the jacking frame 2321, the pushing block 2328 is slidably disposed in a sliding slot at the bottom of the jacking frame 2321, one end of the pushing block 2328 is fixed on a piston rod of the pushing cylinder 2327, and the other end of the pushing block 2328 is provided with an inclined sliding surface, which is slidably engaged with the sliding surface of the sliding base 2325 to drive the pushing block 2325 to move upward when a piston rod of the pushing cylinder 2327 extends out. The sliding base 2325 includes a base fixed to the guide bar 2323 and a rolling member rotatably connected to the base, and when the pushing block 2328 horizontally extends, the inclined sliding surface of the pushing block 2328 can slide relative to the rolling member. After the stopping member 231 stops the carrier 22, the piston rod of the pushing cylinder 2327 extends to drive the pushing block 2328 to move toward the sliding base 2325, the inclined sliding surface of the pushing block 2328 drives the guide rod 2323 to ascend along the guide sleeve 2322 through the sliding base 2325, the horizontal movement of the pushing block 2328 is converted into the ascending movement of the guide rod 2323, the elastic member 2326 is compressed, so that the guide rod 2323 ascends stably, and the carrier 22 is jacked through the jacking plate 2324 on the guide rod 2323. Jacking subassembly 232 adopts pushing cylinder 2327, ejector pad 2328 and sliding seat 2325 to come jacking guide bar 2323, can realize hard jacking carrier 22 for carrier 22 can stably bear the holding down force that screw tightening device 4 screwed up the screw in-process and produce, guarantees that the screw is accurate, screwed up steadily, can avoid directly adopting the piston rod of cylinder to come the jacking and the crooked unstable problem that influences the screw and twist that causes.

Referring to fig. 10, in this embodiment, the box shell feeding device 3 includes a feeding support 31, a translation mechanism 32, a lifting mechanism 33, and a grabbing mechanism 34, the feeding support 31 is fixed on the rack 1, the translation mechanism 32 is horizontally installed on the feeding support 31, the lifting mechanism 33 is installed at a translation end of the translation mechanism 32, so that the translation mechanism 32 drives the lifting mechanism 33 to translate, and the grabbing mechanism 34 is installed at a lifting end of the lifting mechanism 33, so as to drive the grabbing mechanism 34 to lift and grab the box shell 10 through the grabbing mechanism 34.

In this embodiment, the translation mechanism 32 includes a translation guide rail 321 horizontally fixed on the feeding bracket 31, a translation seat 322 slidably disposed on the translation guide rail 321, and a translation cylinder 323 horizontally mounted on the feeding bracket 31 and connected to the translation seat 322. The translation mechanism 32 further includes a buffer 324 mounted on the feeding frame 31 near one end of the translation guide rail 321, and the buffer 324 and the translation cylinder 323 are disposed at two ends of the translation guide rail 321 relatively. The lifting mechanism 33 is disposed on the translation base 322.

In this embodiment, the lifting mechanism 33 includes a lifting slider 331 fixed on the translation base 322, a lifting rail 332 disposed on the lifting slider 331 and capable of lifting and sliding, and a lifting cylinder 333 fixed on the translation base 322 for pushing the lifting rail 332 to slide. The gripping mechanism 34 is mounted to the bottom end of the lifting rail 332.

In this embodiment, the grabbing mechanism 34 includes a clamping jaw cylinder 341 mounted at the bottom end of the lifting rail 332 and a clamping jaw 342 mounted at the driving end of the clamping jaw cylinder 341, and the clamping jaw cylinder 341 drives the clamping jaw 342 to clamp or unclamp the cabinet 10.

Referring to fig. 2, in the present embodiment, the tooth box assembling machine further includes a carrying mechanism 6 and a transferring mechanism 7 disposed on the rack 1, the carrying mechanism 6 is disposed near a feeding end of the transferring mechanism 7 to grab the box shell 10 on the transferring mechanism 7, and the box shell feeding device 3 is disposed near a discharging end of the transferring mechanism 7 to grab the box shell 10 on the transferring mechanism 7 and to be sleeved on an output shaft of the motor 20 and a rotating shaft of the tire 30 on the carrier 22. The carrying mechanism 6 is substantially similar to the translating mechanism 32 except that a rotary cylinder is added to the translating mechanism 32 to rotate the housing 10, and the detailed structure thereof is not described herein.

Referring to fig. 11, in the present embodiment, the relay mechanism 7 includes a relay rack 71, a relay slide rail 72, a slave synchronizing wheel 73, a master synchronizing wheel 74, a master synchronizing belt 75, a slave synchronizing belt 76, a relay motor 77, and a relay positioning seat 78, the relay slide rail 72 is horizontally fixed on the relay rack 71, the two slave synchronizing wheels 73 are rotatably connected to the relay rack 71 and respectively close to two ends of the relay slide rail 72, the slave synchronizing belt 76 is wound on the two slave synchronizing wheels 73, one of the slave synchronizing wheels 73 is fixed with the other slave synchronizing wheel 73 on a wheel axle, the relay motor 77 is fixed on the relay rack 71, the master synchronizing wheel 74 is fixed on an output shaft of the relay motor 77, and the master synchronizing belt 75 is wound on the master synchronizing wheel 74 and the other slave synchronizing wheel 73. One end of the transfer positioning seat 78 is slidably disposed on the transfer slide rail 72, and the other end is connected to the slave timing belt 76. The grabbing mechanism 34 grabs the case shell 10 and places the case shell on the transfer positioning seat 78 for positioning, then the transfer motor 77 drives the main synchronizing wheel 74 to rotate, the main synchronizing wheel 74 drives the three slave synchronizing wheels 73 to rotate through the main synchronizing belt 75, so as to drive the transfer positioning seat 78 to reciprocate along the transfer sliding rail 72, and the case shell 10 can be conveyed on the transfer positioning seat 78 along the transfer sliding rail 72 in a reciprocating manner.

Referring to fig. 4, in this embodiment, two sets of screw tightening devices 4 are arranged at intervals along the first conveying line 21, and two screws fixed to the box shell 10 and the motor 20 are respectively tightened by the two sets of screw tightening devices 4, so as to improve the screw assembling efficiency. It will be appreciated that a set of screw tightening devices 4 may be used to tighten the two screws that secure the housing 10 to the motor 20.

Referring to fig. 12 to 14, in the present embodiment, the screw tightening device 4 includes a fixed frame 41, a horizontal moving mechanism 42 installed on the fixed frame 41, a vertical moving mechanism 43 installed at a moving end of the horizontal moving mechanism 42, and a tightening assembly 44 installed at a moving end of the vertical moving mechanism 43, the tightening assembly 44 includes a tightening slide rail 441, a tightening slide block 442, a tightening slide seat 443, a tightening elastic member 444, a tightening motor 445, a screw driver 446, and a screw suction nozzle 447, the tightening slide rail 441 is vertically disposed at the moving end of the vertical moving mechanism 43, the tightening slide block 442 is slidably disposed on the tightening slide rail 441, the tightening slide seat 443 is fixed on the tightening slide block 442, the tightening elastic member 444 is disposed between the tightening slide seat 443 and the moving end of the vertical moving mechanism 43 to provide an elastic force along a downward sliding direction of the tightening slide seat 443, the tightening motor 445 and the screw suction nozzle 447 are respectively installed at a top end and a bottom end of the tightening slide seat 443, the screw driver 446 is connected to an output shaft of the tightening motor 445, and a bottom end of the screw suction nozzle 446 is inserted into a nut of the screw suction nozzle 447.

The screw tightening device 4 is provided with a fixed frame 41, a horizontal moving mechanism 42, a vertical moving mechanism 43 and a tightening assembly 44 which are matched, the tightening assembly 44 is provided with a tightening slide rail 441, a tightening slide block 442, a tightening slide seat 443, a tightening elastic member 444, a tightening motor 445, a screwdriver 446 and a screw suction nozzle 447 which are matched, the horizontal moving mechanism 42 can drive the vertical moving mechanism 43 and the tightening assembly 44 to translate to the position right above the screw feeder 5, the vertical moving mechanism 43 drives the tightening assembly 44 to descend, so that the screw suction nozzle 447 of the tightening assembly 44 sucks a screw of the screw feeder 5, the bottom end of the screwdriver 446 is inserted into a nut of the sucked screw, the horizontal moving mechanism 42 drives the vertical moving mechanism 43 and the tightening assembly 44 to move to the position right above a screw hole of a workpiece to be screwed, the vertical moving mechanism 43 drives the tightening assembly 44 to descend, so that the bottom end of the screw sucked by the screw suction nozzle 447 abuts against the screw hole of the workpiece to be screwed, the tightening elastic member 444 is compressed, the tightening motor 445 drives the screwdriver 446 and the screw to rotate, and the tightening elastic member 444 provides downward elastic force for screwing the workpiece to screw hole. The screw tightening device 4 adopting the scheme has the advantages of simple and compact structure and lower cost, and can automatically complete the installation of screws and improve the installation efficiency of the screws. The output shafts of the screwdriver 446 and the tightening motor 445 are in rigid connection, so that the problem of swinging of the screwdriver 446 is reduced, and the screwdriver 446 is more convenient to replace. Because the tightening elastic piece 444 is arranged between the tightening sliding seat 443 and the moving end of the vertical moving mechanism 43, the axial direction of the tightening motor 445 cannot be stressed in the screw tightening process, the abrasion of the tightening motor 445 can be reduced, the running stability in the screw tightening process is improved, and the service life of the tightening motor 445 is effectively prolonged.

In this embodiment, the horizontal moving mechanism 42 includes a horizontal sliding rail 421, a horizontal sliding block 422, a horizontal sliding seat 423, a horizontal driving motor 424, a horizontal main synchronizing wheel 425, a horizontal slave synchronizing wheel 426, and a horizontal synchronous belt 427, where the horizontal sliding rail 421 is horizontally disposed on the fixed frame 41, the horizontal sliding block 422 is slidably disposed on the horizontal sliding rail 421, the horizontal sliding seat 423 is fixed on the horizontal sliding block 422, the horizontal driving motor 424 is fixed on the fixed frame 41, the horizontal main synchronizing wheel 425 is fixed on an output shaft of the horizontal driving motor 424, the horizontal slave synchronizing wheel 426 is rotatably connected to the fixed frame 41, the horizontal main synchronizing wheel 425 and the horizontal slave synchronizing wheel 426 are respectively horizontally disposed at two ends of the horizontal sliding rail 421, the horizontal synchronous belt 427 is wound on the horizontal main synchronizing wheel 425 and the horizontal slave synchronizing wheel 426, and the horizontal synchronous belt 427 is connected to the horizontal sliding seat 423 to drive the horizontal sliding seat 423 to reciprocate. The horizontal moving mechanism 42 has a moving end, i.e., a horizontal sliding base 423, and the vertical moving mechanism 43 is mounted on the horizontal sliding base 423. The horizontal moving mechanism 42 adopting the scheme has the advantages of simple structure, lower cost and stable operation, and can be suitable for transferring screws.

In this embodiment, the vertical moving mechanism 43 includes a vertical sliding rail 431, a vertical sliding block 432, a vertical sliding seat 433 and a vertical cylinder 434, the vertical sliding rail 431 is fixed on the horizontal sliding seat 423 and is perpendicular to the horizontal sliding block 422, the vertical sliding block 432 is slidably disposed on the vertical sliding rail 431, the vertical sliding seat 433 is fixed on the vertical sliding block 432, the vertical cylinder 434 is installed at the top end of the horizontal sliding seat 423, and a piston rod of the vertical cylinder 434 is connected with the vertical sliding seat 433 to drive the vertical sliding seat 433 to slide up and down along the vertical sliding rail 431. The vertical moving mechanism 43 moves the end, i.e., the vertical sliding base 433. The vertical moving mechanism 43 is matched with the vertical sliding rail 431, the vertical sliding block 432, the vertical sliding seat 433 and the vertical air cylinder 434, so that the vertical moving mechanism 43 is flattened, occupied space is saved, and the vertical moving mechanism is more suitable for being installed in narrow space for operation.

In this embodiment, one tightening slide rail 441 is provided, two tightening sliders 442 are slidably provided on the tightening slide rail 441, and the tightening slide base 443 is fixed to the two tightening sliders 442. The two tightening sliding blocks 442 drive the tightening sliding seats 443 to slide back and forth along the tightening sliding rails 441, so that the sliding process is smoother and more stable, the service life of the tightening sliding blocks 442 is prolonged, and the problem of upward tilting of screws in the screwing process is solved.

In this embodiment, the tightening assembly 44 further includes a vacuum detecting switch 448 for detecting whether the screw is sucked or not, and a suction device connected to the screw suction nozzle 447 through an air tube, wherein the vacuum detecting switch 448 is mounted at the top end of the vertical sliding base 433 and connected to the air tube. The vacuum detection switch 448 can detect whether the screw is sucked at the bottom end of the screw suction nozzle 447, and can be used for monitoring the screw in the movement process of the horizontal moving mechanism 42 and the vertical moving mechanism 43, so that the problem that the screw falls off to cause the direct damage to the workpiece by the screwdriver 446 is solved.

In this embodiment, the subassembly 44 of screwing up still includes and is used for adjusting to screw up the adjusting bolt 449 that elastic component 444 received pressure, and the regulation hole has been seted up on perpendicular sliding seat 433 top, and adjusting bolt 449 wears to locate the regulation hole, and adjusting bolt 449 bottom spiro union is on screwing up sliding seat 443, screws up the periphery that adjusting bolt 449 was located to elastic component 444 cover. The tightness of the tightening elastic part 44 can be adjusted by rotating the adjusting bolt 449, so that the problem of different locking pressures required by different products is solved, and the adjustment is more convenient. The tightening spring 44 is preferably a spring.

In this embodiment, the tightening unit 44 further includes a bearing seat 450, a coupling 451, a connecting shaft 452, and a bushing 453, the bearing seat 450 is fixed to the tightening sliding seat 443, a top end of the coupling 451 is fixed to the output shaft of the tightening motor 445, a top end of the connecting shaft 452 is fixed to a bottom end of the coupling 451, the connecting shaft 452 is rotatably mounted to the bearing seat 450, the bushing 453 is fixed to a bottom end of the connecting shaft 452, and the screwdriver 446 is detachably mounted in the bushing 453. Like this, be convenient for screw up the output shaft of motor 445 with be connected fixedly with screwdriver 446, and can guarantee both rigid connection, improved the operating stability of screwing up the screw in-process, reduced the wobbling problem of screwdriver 446, it is also more convenient that screwdriver 446 changes.

Referring to fig. 2 and 3, in the embodiment, the tooth box assembling machine further includes a second conveying line 8, the second conveying line 8 is installed below the first conveying line 21, two ends of the first conveying line 21 are respectively connected to upper conveying lines of front and rear assembling devices to form a whole upper conveying line, two ends of the second conveying line 8 are respectively connected to lower conveying lines of the front and rear assembling devices to form a whole lower conveying line, and two ends of the whole upper conveying line and the whole lower conveying line are respectively connected to a vertical conveying line, so as to circularly convey the carriers 22 sequentially through the assembling devices.

In the present embodiment, the screw feeder 5 is a device that continuously supplies screws one at a time for tightening. The devices known from the prior art on the screw feeder 5 are available directly from commercial sources.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying importance; the words "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, a particular component geometry.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. The screw tightening device is characterized by comprising a fixing frame (41), a horizontal moving mechanism (42) arranged on the fixing frame (41), a vertical moving mechanism (43) arranged at the moving end of the horizontal moving mechanism (42) and a tightening assembly (44) arranged at the moving end of the vertical moving mechanism (43), wherein the tightening assembly (44) comprises a tightening sliding rail (441), a tightening sliding block (442), a tightening sliding seat (443), a tightening elastic piece (444), a tightening motor (445), a screwdriver (446) and a screw suction nozzle (447), the tightening sliding rail (441) is vertically arranged at the moving end of the vertical moving mechanism (43), the tightening sliding block (442) is slidably arranged on the tightening sliding rail (441), the tightening sliding seat (443) is fixed on the tightening sliding block (442), the tightening elastic piece (444) is arranged between the tightening sliding seat (443) and the moving end of the vertical moving mechanism (43), the tightening motor (445) and the screw suction nozzle (447) are respectively arranged at the top end of the tightening sliding seat (443) and the bottom end of the screwdriver (447), the screwdriver (445) is connected with an output shaft (446) of the screwdriver in the screw suction nozzle (446) which penetrates through the tightening sliding seat (443).

2. The screw tightening device according to claim 1, wherein the horizontal movement mechanism (42) includes a horizontal slide rail (421), a horizontal slider (422), and a horizontal sliding seat (423), the horizontal slide rail (421) is horizontally disposed on the fixed frame (41), the horizontal slider (422) is slidably disposed on the horizontal slide rail (421), and the horizontal sliding seat (423) is fixed on the horizontal slider (422).

3. The screw tightening apparatus according to claim 2, wherein the horizontal movement mechanism (42) includes a horizontal driving motor (424), a horizontal master synchronizing wheel (425), a horizontal slave synchronizing wheel (426) and a horizontal synchronous belt (427), the horizontal driving motor (424) is fixed to the fixed frame (41), the horizontal master synchronizing wheel (425) is fixed to an output shaft of the horizontal driving motor (424), the horizontal slave synchronizing wheel (426) is rotatably connected to the fixed frame (41), the horizontal master synchronizing wheel (425) and the horizontal slave synchronizing wheel (426) are respectively horizontally disposed at two ends of the horizontal sliding rail (421), the horizontal synchronous belt (427) is wound around the horizontal master synchronizing wheel (425) and the horizontal slave synchronizing wheel (426), the horizontal synchronous belt (427) is connected to the horizontal sliding seat (423) to drive the horizontal sliding seat (423) to reciprocate, and the vertical movement mechanism (43) is mounted on the horizontal sliding seat (423).

4. The screw tightening apparatus according to claim 2, wherein the vertical movement mechanism (43) includes a vertical slide rail (431), a vertical slider (432), and a vertical slide base (433), the vertical slide rail (431) is fixed to the horizontal slide base (423) and is perpendicular to the horizontal slider (422), the vertical slider (432) is slidably disposed on the vertical slide rail (431), and the vertical slide base (433) is fixed to the vertical slider (432).

5. Screw tightening device according to claim 4, characterized in that the vertical movement mechanism (43) comprises a vertical cylinder (434) mounted on top of a horizontal sliding seat (423), the piston rod of the vertical cylinder (434) being connected to a vertical sliding seat (433).

6. Screw tightening device according to claim 1, characterized in that the tightening slide rail (441) is provided with one, two tightening sliders (442) are slidably provided on the tightening slide rail (441), and the tightening slide seat (443) is fixed to the two tightening sliders (442).

7. The screw tightening apparatus according to claim 1, wherein the tightening unit (44) further comprises a vacuum detecting switch (448) for detecting whether the screw is sucked or not, and a suction unit connected to the screw suction nozzle (447) through an air tube, the vacuum detecting switch (448) being mounted on a top end of the vertical sliding base (433) and connected to the air tube.

8. The screw tightening device according to claim 4, wherein the tightening assembly (44) further comprises an adjusting bolt (449) for adjusting the pressure on the tightening elastic member (444), an adjusting hole is formed at the top end of the vertical sliding seat (433), the adjusting bolt (449) is inserted into the adjusting hole, the bottom end of the adjusting bolt (449) is screwed on the tightening sliding seat (443), and the tightening elastic member (444) is sleeved on the periphery of the adjusting bolt (449).

9. The screw tightening apparatus according to claim 1, wherein the tightening assembly (44) further comprises a bearing housing (450), a coupling (451), a connecting shaft (452), and a bushing (453), the bearing housing (450) is fixed to the tightening slide block (443), a top end of the coupling (451) is fixed to an output shaft of the tightening motor (445), a top end of the connecting shaft (452) is fixed to a bottom end of the coupling (451), the connecting shaft (452) is rotatably mounted to the bearing housing (450), the bushing (453) is fixed to a bottom end of the connecting shaft (452), and the screwdriver (446) is detachably mounted in the bushing (453).

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