An integrated forming device for a type A worm drive clamp

Abstract

The present invention relates to an integrated forming device for a type A worm drive clamp, which comprises an installation table, a hoop belt straightening, feeding and cutting unit, a feeding and riveting bottom unit, a moving unit, a worm upper cover assembling unit, a riveting upper cover unit, a hoop belt ring forming unit and a locking and detecting unit. A hoop belt straightening, feeding and cutting unit is arranged on the left side of the front end of the installation table, a feeding and riveting bottom unit is arranged behind the hoop belt straightening, feeding and cutting unit, a moving unit for taking materials is arranged on the right front side of the feeding and riveting bottom unit, a worm upper cover assembling unit and a riveting upper cover unit are sequentially arranged behind the moving unit from back to front, and a hoop belt ring forming unit and a locking and detecting unit are sequentially arranged on the front end of the right side of the moving unit from back to front. By reasonably integrating a plurality of existing independent processing devices onto one workbench, the present invention greatly saves labor and labor intensity, and has strong fluency in the whole processing process, thus greatly improving the processing efficiency.

Description

Technical Field

[0001] The invention belongs to the field of forming equipment for connecting fasteners, and relates to an integrated forming equipment for a clamp, in particular to an integrated forming device for an A-type worm drive clamp. Background Art

[0002] The A-type worm drive clamp is generally used for connecting pipe bundles on automobiles and ships. It mainly consists of a hoop band, a hoop shell and a worm. The hoop shell is composed of a hoop shell upper cover and a hoop shell bottom support which are riveted to each other. A worm is installed between the hoop shell upper cover and the hoop shell bottom support. The hoop shell bottom support is riveted to one end of the hoop band. Hoop teeth are punched at the other end of the hoop band, and the end with the punched hoop teeth extends between the worm and the hoop shell bottom support. The size adjustment of the hoop band loop is realized through the meshing of the worm and the hoop teeth.

[0003] The existing forming process of the A-type worm drive clamp includes the straightening and cutting of the hoop band, the riveting of the hoop band and the hoop shell bottom support, the riveting of the hoop shell bottom support and the hoop shell upper cover, the forming of the hoop band loop, the locking of the worm, and the detection of the tightening torque and the size of the hoop band loop. At present, these steps are all completed manually on independent machines. There are not only problems of high labor intensity and low processing efficiency, but also problems that the equipment is scattered from each other, which is not conducive to the workshop layout and inconvenient for material transfer.

[0004] In view of this, it is urgent to design an integrated forming device for the A-type worm drive clamp, which can improve the processing efficiency and the qualified product rate on the premise of facilitating the workshop layout, greatly improve the processing quality of the clamp and reduce the processing cost. Summary of the Invention

[0005] The purpose of the invention is to overcome the deficiencies of the prior art and provide an integrated forming device for an A-type worm drive clamp with simple structure, high processing efficiency, low labor intensity, conducive to workshop layout, high product qualification rate and easy to realize.

[0006] The technical problems of the invention are solved by adopting the following technical solutions:

[0007] An integrated forming device for an A-type worm drive clamp, characterized in that it includes an installation table, a hoop band straightening, feeding and cutting unit, a feeding and riveting bottom unit, a moving unit, a worm and upper cover assembling unit, a riveting upper cover unit, a hoop band loop forming unit and a locking and detecting unit. The hoop band straightening, feeding and cutting unit is arranged on the left side at the front end of the installation table. The feeding and riveting bottom unit is arranged behind the hoop band straightening, feeding and cutting unit. The moving unit for taking materials is arranged on the front right side of the feeding and riveting bottom unit. The worm and upper cover assembling unit and the riveting upper cover unit are arranged in sequence from back to front behind the moving unit. The hoop band loop forming unit and the locking and detecting unit are arranged in sequence from back to front at the front end on the right side of the moving unit.

[0008] Moreover, the hoop belt straightening, feeding and cutting unit includes a straightening mechanism, a servo slide module, a slide seat, a moving pressing cylinder, a fixed pressing cylinder, a cutting module and a cutting cylinder. A first mounting plate extending horizontally forward is mounted on the mounting table. The straightening mechanism, the servo slide module, the fixed pressing cylinder and the cutting module are sequentially mounted on the first mounting plate from front to back. A slide seat that slides back and forth is provided on the servo slide module. A moving pressing cylinder is mounted on the slide seat. A square hole positioning block is mounted on the piston rod of the moving pressing cylinder. A fixed pressing cylinder is fixedly installed at the rear end of the servo slide module. A long hole positioning block is mounted on the piston rod of the fixed pressing cylinder. A cutting module is mounted at the rear of the long hole positioning block. The cutting knife on the cutting module is driven by the cutting cylinder.

[0009] Moreover, it further includes a baffle plate. A baffle plate is mounted on the right side of the slide seat through a mounting frame. The lower edge of the baffle plate is placed on the passing hoop belt.

[0010] Moreover, it further includes a feeding detection mechanism. A feeding detection mechanism is provided at the front end of the straightening mechanism. The feeding detection mechanism is composed of a mounting frame, an upper wheel, a lower wheel and a photoelectric switch. An upper wheel and a lower wheel are provided on the mounting frame in an up-and-down opposite manner. A photoelectric switch is provided behind the mounting frame. The upper end surface of the photoelectric switch is flush with the upper end surface of the lower wheel. The photoelectric switch is signal-connected to the moving pressing cylinder.

[0011] Moreover, the feeding and bottom riveting unit includes a hoop shell bottom support vibrating disk, a linear vibrating chute, a bottom pushing cylinder, a feeding chute, a bottom riveting die and a bottom riveting cylinder. A bottom riveting die driven by the bottom riveting cylinder is mounted at the rear of the hoop belt straightening, feeding and cutting unit. A feeding chute is provided behind the bottom riveting die. A bottom pushing cylinder is provided behind the feeding chute. The piston rod of the bottom pushing cylinder drives a pushing block to stretch in the feeding chute. A feeding port is opened on the left side of the feeding chute. The feeding port is connected to the hoop shell bottom support vibrating disk through the linear vibrating chute. A detection switch is mounted on the feeding chute opposite to the linear vibrating chute. The detection switch is signal-connected to the bottom pushing cylinder.

[0012] Moreover, a pressing block driven by a pressing cylinder to lift is provided at the upper end of the feeding port of the feeding chute.

[0013] Moreover, the bottom riveting die includes an upper die holder, a fixing plate, an upper die, a lower die holder, a lower backing plate, a lower die insert frame, a lower die insert, a lower die core, a lower die supporting spring, a lower die supporting cylinder, a blanking block and a blanking block compression spring. The upper die holder and the lower die holder are arranged opposite to each other up and down. Fixing plates are provided at the four corners at the lower end of the upper die holder. An upper die is provided in the middle at the bottom end of the upper die holder. The lower end surface of the upper die is an upwardly concave arc structure. A bottom riveting cylinder for driving its lifting is mounted on the top of the upper die holder.

[0014] On the upper end face of the lower die carrier, a lower backing plate and a lower die insert frame are sequentially arranged from bottom to top. A lower die insert is installed inside the lower die insert frame, and a lower die core opposite to the upper die is sleeved inside the lower die insert. The upper end face of the lower die core is an upwardly convex arc structure. A limiting groove is provided at the bottom of the lower die core, and an upper limiting groove is provided on the lower backing plate opposite to the limiting groove. The lower die support spring is installed between the upper limiting groove and the lower limiting groove;

[0015] A blank stop block is provided at the front end of the lower die core. A spring positioning pin inserted into the lower backing plate is sleeved inside the blank stop block, and a blank stop block compression spring is sleeved on the spring positioning pin. The upper and lower end faces of the blank stop block compression spring are respectively limited in the limiting grooves formed at the bottom of the blank stop block and the upper part of the lower backing plate.

[0016] Moreover, the bottom riveting die further includes a hoop shell bottom support limiting mechanism, which includes a limiting cylinder and a limiting head. Blocks are provided on the left and right sides of the lower die insert frame. A guiding hole is opened on the left block, and a limiting head controlled by the limiting cylinder is telescopically installed in the guiding hole. The guiding hole is higher than the upper end face of the lower die core and is located directly above it.

[0017] Moreover, the bottom riveting die further includes a lower die support cylinder. A first telescopic hole is provided in the middle of the bottom of the upper limiting groove, and a second telescopic hole opposite to it is provided on the lower die carrier below the first telescopic hole. The through hole formed by the inner hole of the lower die support spring, the first telescopic hole, and the second telescopic hole is a telescopic hole. A lower die support cylinder is installed at the bottom of the lower die carrier, and the cylinder rod of the lower die support cylinder telescopically moves in the telescopic hole.

[0018] Moreover, it further includes a hoop belt guiding and aligning mechanism, which includes left and right guiding blocks and an upper and lower guiding through block. In the feeding direction of the hoop belt, left and right guiding blocks arranged opposite to each other are installed at the front end of the blank stop block. The channel between the two left and right guiding blocks forms a guiding channel. An upper and lower guiding through block is provided at the front end of the guiding channel, and a through hole is provided on the upper and lower guiding through block.

[0019] Moreover, the worm upper cover assembly unit includes a worm feeding mechanism, a hoop shell upper cover feeding mechanism, a turntable tooling, and a worm upper cover grasping mechanism. The worm feeding mechanism is installed at the 3 o'clock direction of the turntable tooling, the hoop shell upper cover feeding mechanism is installed at the 12 o'clock direction of the turntable tooling, and the worm upper cover grasping mechanism is installed at the 6 o'clock direction of the turntable tooling.

[0020] Moreover, the worm feeding mechanism includes a worm vibrating bowl, a worm linear vibrating chute, and a worm switching and grasping mechanism. A leftward-extending worm linear vibrating chute is butted at the discharge port of the worm vibrating bowl. The worm linear vibrating chute is driven by a vibrator located at its bottom to vibrate, and a worm switching and grasping mechanism is provided at the right end of the worm linear vibrating chute;

[0021] The described worm gear switching and grasping mechanism includes a worm gear switching cylinder, a worm gear switching groove block, a worm gear sliding groove, a worm gear grasping mounting frame, a transverse slider, a transverse cylinder, a longitudinal slider, a longitudinal cylinder, and a worm gear pneumatic gripper. A worm gear sliding groove is installed below the discharge port of the worm gear straight vibrating chute. A worm gear switching groove block driven by the worm gear switching cylinder is slidably installed in the worm gear sliding groove. A worm gear bearing groove with left and right openings is provided on the worm gear switching groove block. A material taking notch is formed on the groove wall of the worm gear sliding groove at a position closer to the front. A worm gear pneumatic gripper is provided directly above the material taking notch. The worm gear pneumatic gripper is installed on the longitudinal slider. The longitudinal slider is driven by the longitudinal cylinder, and the longitudinal cylinder is installed on the transverse slider. The transverse slider is driven by the transverse cylinder, and the transverse cylinder is installed on the worm gear grasping mounting frame.

[0022] Moreover, the upper cover feeding mechanism of the hoop shell includes a hoop shell upper cover vibrating disk, a hoop shell upper cover straight vibrating chute, and a hoop shell upper cover switching and grasping mechanism. A forward-extending hoop shell upper cover straight vibrating chute is connected to the discharge port of the hoop shell upper cover vibrating disk. The hoop shell upper cover straight vibrating chute is driven to vibrate by a vibrator located at its bottom. A hoop shell upper cover switching and grasping mechanism is provided at the front end of the hoop shell upper cover straight vibrating chute.

[0023] The described hoop shell upper cover switching and grasping mechanism includes a hoop shell upper cover switching cylinder, a hoop shell upper cover switching groove block, a hoop shell upper cover grasping mounting frame, a transverse slider, a transverse cylinder, a longitudinal slider, a longitudinal cylinder, and a hoop shell upper cover pneumatic gripper. A hoop shell upper cover sliding groove is installed below the discharge port of the hoop shell upper cover straight vibrating chute. A hoop shell upper cover switching groove block driven by the hoop shell upper cover switching cylinder is slidably installed in the hoop shell upper cover sliding groove. A hoop shell upper cover bearing groove with front and rear openings is provided on the hoop shell upper cover switching groove block. A material taking notch is formed on the groove wall of the hoop shell upper cover sliding groove at a position closer to the right. A hoop shell upper cover pneumatic gripper is provided directly above the material taking notch. The hoop shell upper cover pneumatic gripper is installed on the longitudinal slider. The longitudinal slider is driven by the longitudinal cylinder, and the longitudinal cylinder is installed on the transverse slider. The transverse slider is driven by the transverse cylinder, and the transverse cylinder is installed on the hoop shell upper cover grasping mounting frame.

[0024] Moreover, the turntable tooling includes a turntable, a driving motor, and loading stations circumferentially and evenly distributed on the turntable. A driving motor for driving its rotation is installed below the turntable. The loading stations include a bottom plate, an L-shaped vertical plate, a hoop shell upper cover bearing table, a worm gear front limiting block, and a worm gear rear limiting block. The bottom plates are circumferentially and evenly distributed on the turntable. An L-shaped vertical plate is installed on the bottom plate and arranged oppositely on the left and right. Two spaced hoop shell upper cover bearing tables are provided between the two L-shaped vertical plates. The width between the two hoop shell upper cover bearing tables is adapted to the width of the bottom of the hoop shell upper cover. A worm gear front limiting block and a worm gear rear limiting block are respectively installed between the two hoop shell upper cover bearing tables and arranged front and rear.

[0025] Moreover, the worm upper cover grasping mechanism includes a component grasping pneumatic gripper, a lifting slider, a lifting cylinder, a horizontal moving slider, and a horizontal moving cylinder. A component grasping mounting frame is installed across between the front of the turntable tooling and the riveting unit. A horizontal moving slider driven by a horizontal moving cylinder is installed on the component grasping mounting frame. A lifting slider driven by a lifting cylinder is installed on the horizontal moving slider. A component grasping pneumatic gripper is installed on the lifting slider.

[0026] Moreover, the moving unit includes a moving platform and a material clamping and transferring tooling. A moving platform is arranged in front of the worm upper cover assembly unit, and the material clamping and transferring tooling is arranged at intervals on the moving platform.

[0027] Each of the material clamping and transferring tooling includes a first lifting cylinder, a second lifting cylinder, and a finger clamping cylinder. A first lifting cylinder is installed on the moving platform. A second lifting cylinder is installed on the first lifting cylinder in a lifting manner. A finger clamping cylinder is driven and installed on the second lifting cylinder.

[0028] Moreover, the upper cover riveting unit is composed of a first riveting machine and a second riveting mechanism. The first riveting upper die in the first riveting machine is composed of a first upper die body and spacer feet arranged at both ends of the first upper die body. A profiled arc groove is provided in the middle of the lower end surface of the first upper die body. Inclined surfaces are provided on both sides of the arc groove and incline outward. Spacer feet are provided on the table surface outside the inclined surfaces.

[0029] The second riveting upper die in the second riveting machine is composed of a second upper die body. A profiled arc groove is provided in the middle of the lower end surface of the second upper die body. Pressing platforms protruding outward are provided at both ends of the arc groove.

[0030] Moreover, the hoop belt forming unit includes a material taking mechanism and a coiling mechanism. The material taking mechanism includes a front and rear material taking cylinder, an up and down material taking cylinder, and a pneumatic gripper. A transverse moving slider driven by the front and rear material taking cylinder is installed at the rear of the mounting frame. A pneumatic gripper driven by the up and down material taking cylinder is installed on the transverse moving slider. A coiling mechanism is provided at the rear of the material taking mechanism.

[0031] Moreover, the locking detection unit includes an automatic tape threading and locking mechanism, a locking amount detection mechanism, and a feeding mechanism. The locking amount detection mechanism is installed on the installation vertical plate of the automatic tape threading and locking mechanism. A feeding mechanism is installed at the left end of the automatic tape threading and locking mechanism.

[0032] Moreover, the automatic belt threading and locking mechanism comprises a horizontal mounting plate, a mounting vertical plate, a clamp fixing assembly, a clamp belt threading assembly and a clamp worm locking assembly, wherein a mounting vertical plate arranged opposite to the clamp belt straightening, feeding and cutting unit is mounted on the horizontal mounting plate, and the clamp fixing assembly comprises a clamping cylinder, a clamp shell clamping block, a clamp shell support block and a support block telescopic cylinder, a telescopic hole is provided at an upper position of the mounting vertical plate, a clamp shell support block is installed in the telescopic hole, the clamp shell support block is driven by the support block telescopic cylinder to telescope left and right in the telescopic hole, and a clamp shell clamping block driven to rise and fall by the clamping cylinder is provided directly above the extended clamp shell support block;

[0033] The clamp strap threading assembly comprises a rear push block, an upper support block, a front push block and an arc guide block. A rear push block driven by a rear push cylinder is provided at the front lower part of the clamp shell support block, a front push block driven by a front push cylinder is provided at the rear lower part of the clamp shell support block, an arc guide block is provided at the rear of the clamp shell support block, a guide groove is provided on the bottom surface of the arc guide block, the upper end notch of the guide groove is opposite to the position where the strap is to be threaded, an upper support block is provided at the lower part of the clamp shell support block, the upper support block is driven by a removal assembly, the removal assembly comprises a front push cylinder, a removal frame and an upper support cylinder, a front push cylinder is provided below the mounting vertical plate, a removal frame is installed at the front end of the front push cylinder, an upper support cylinder is installed on the removal frame, and an upper support block is installed on the upper support cylinder;

[0034] The clamp worm locking assembly includes a rearward moving frame, a locking motor and a locking sleeve. A rearward pushing cylinder is installed in front of the mounting frame, and a rearward moving frame is driven and installed on the rearward pushing cylinder. A locking sleeve driven by the locking motor is installed on the rearward moving frame; the rearward pushing block is installed on the rearward moving frame below the locking sleeve.

[0035] Moreover, the clamp band threading assembly also includes a band pressing block, and a band pressing block linked to the clamp shell clamping block is arranged at the front end of the clamp shell clamping block. The band pressing block is composed of a block body and a clamp shell head groove arranged at the bottom of the block body, and the protruding parts on both sides of the clamp shell groove form a clamp band pressure head.

[0036] Moreover, the feeding mechanism includes a feeding rail, a feeding slider, front and rear feeding cylinders, left and right feeding cylinders and a pneumatic clamp. A feeding rail is installed on the left side of the mounting vertical plate, and a feeding slider is installed on the feeding rail. The feeding slider is driven by the front and rear feeding cylinders, and left and right feeding cylinders are installed on the feeding slider, and pneumatic clamps are driven and installed on the left and right feeding cylinders.

[0037] Moreover, the locking amount detection unit includes an optical fiber sensor, a detection through hole is provided on the end surface of the arc-shaped guide block, and the optical fiber sensor is installed on the mounting plate, and the probe of the optical fiber sensor is opposite to the detection through hole.

[0038] Moreover, the locking amount detection unit further includes a defective product diversion mechanism, which includes a torque sensor, a diversion cylinder, and a diversion hopper with openings at both the front and the rear. The diversion hopper driven by the diversion cylinder is installed below the left end of the clamp worm locking assembly, and the torque sensor is installed on the locking motor, and the torque sensor is signal-connected to the diversion cylinder.

[0039] The advantages and positive effects of the present invention are:

[0040] The integrated forming device of the present A-type worm drive clamp reasonably integrates multiple existing independent processing devices onto one workbench, and transfers materials between various processes through the moving unit and the feeding mechanism, greatly saving labor and labor intensity. The entire processing process has strong fluency and greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a perspective view of the present invention;

[0042] Figure 2 is a top view of the present invention;

[0043] Figure 3 is a schematic structural view of the strap straightening, feeding, and cutting unit of the present invention;

[0044] Figure 4 is a top view of the strap straightening, feeding, and cutting unit of the present invention;

[0045] Figure 5 is a schematic structural view of the feeding detection mechanism of the present invention;

[0046] Figure 6 is a schematic structural view showing a part of the moving pressing cylinder of the present invention;

[0047] Figure 7 is a schematic structural view showing the long hole positioning block on the fixed pressing cylinder of the present invention;

[0048] Figure 8 is a schematic structural view of the uncut strap;

[0049] Figure 9 is a schematic structural view of the feeding and bottom riveting unit of the present invention;

[0050] Figure 10 is Figure 9 a top view of;

[0051] Figure 11 is Figure 9 an enlarged view of part A of;

[0052] Figure 12 is Figure 11 a sectional view taken along line A-A of;

[0053] Figure 13 Schematic structural diagram of the hoop shell bottom support limiting mechanism of the present invention;

[0054] Figure 14 Schematic structural diagram of the feeding part of the hoop shell bottom support of the present invention;

[0055] Figure 15 Schematic structural diagram of the feeding part of the hoop shell bottom support of the present invention with the pressing block part omitted;

[0056] Figure 16 Schematic structural diagram of the worm upper cover assembly unit of the present invention;

[0057] Figure 17 Schematic structural diagram of the worm feeding mechanism of the present invention;

[0058] Figure 18 Schematic structural diagram of the hoop shell upper cover feeding mechanism of the present invention;

[0059] Figure 19 Schematic structural diagram of the loading station of the present invention;

[0060] Figure 20 Schematic structural diagram of assembling the worm and the hoop shell upper cover at the loading station;

[0061] Figure 21 Schematic structural diagram of the worm upper cover grasping mechanism of the present invention;

[0062] Figure 22 Schematic structural diagram showing that a profiling limiting block for the hoop shell upper cover is provided above the upper parts between the two jaws of the component grasping pneumatic jaw;

[0063] Figure 23 Schematic structural diagram of the moving unit;

[0064] Figure 24 Schematic structural diagram of the clamping and transferring tooling;

[0065] Figure 25 Schematic structural diagram of the upper cover riveting unit;

[0066] Figure 26 Schematic structural diagram of the first upper die body on the first riveting machine;

[0067] Figure 27 Schematic structural diagram of the second upper die body on the second riveting machine;

[0068] Figure 28 Schematic structural diagram of the hoop belt forming unit of the present invention;

[0069] Figure 29 Schematic structural diagram of the locking detection unit of the present invention;

[0070] Figure 30 is Figure 29 the front view of

[0071] Figure 31 is Figure 30 the enlarged view of part B of

[0072] Figure 32 is Figure 30 the top view of

[0073] Figure 33 is Figure 30 the side view of

[0074] Figure 34 is the structural schematic diagram of the locking amount detection mechanism and the hoop pressing block of the present invention;

[0075] Figure 35 is the structural schematic diagram of the arc guide block of the present invention.

[0076] Explanation of reference numerals

[0077] 1 - First mounting plate, 2 - Hoop strap straightening, feeding, and blanking unit, 3 - Feeding and bottom riveting unit, 4 - Lifting cylinder, 5 - Upper cover riveting unit, 6 - Worm upper cover assembly unit, 7 - Material taking mechanism, 8 - Coiling mechanism, 9 - Locking detection unit, 10 - Horizontal mounting plate, 11 - Moving unit, 12 - Hoop shell bottom support vibrating bowl, 13 - Hoop shell upper cover vibrating bowl, 14 - Turntable, 15 - Worm upper cover grasping mechanism, 16 - Mounting table, 17 - Worm vibrating bowl, 18 - Clamp worm locking assembly, 19 - Arc groove, 20 - Blanking module, 21 - Inclined plane, 22 - Feeding detection mechanism, 23 - Straightening mechanism, 24 - Servo sliding table module, 25 - Stop plate, 26 - Moving pressing cylinder, 27 - Fixed pressing cylinder, 28 - Photoelectric switch, 29 - Upper wheel, 30 - Lower wheel, 31 - Mounting frame, 32 - Square hole positioning block, 33 - Long hole positioning block, 34 - Square hole, 35 - Long hole, 36 - Cutting position, 37 - Linear vibrating chute, 38 - Bottom riveting cylinder, 39 - Bottom riveting die, 40 - Bottom pushing cylinder, 41 - Feeding chute, 42 - Belt fixing jaw, 43 - Upper die holder, 44 - Fixed plate, 45 - Upper die, 46 - Lower die insert frame, 47 - Lower die insert, 48 - Lower die core, 49 - Lower die support spring, 50 - Lower die support cylinder, 51 - Lower die holder, 52 - Lower backing plate, 53 - Stop block compression spring, 54 - Spring positioning pin, 55 - Upper and lower alignment through blocks, 56 - Left and right alignment blocks, 57 - Stop block, 58 - Limit cylinder, 59 - Limit head, 60 - Protrusion on the limit head, 61 - Hoop strap, 62 - Pressing material cylinder, 63 - Pressing block, 64 - Pushing block, 65 - Feeding port, 66 - Detection switch, 67 - Hoop shell upper cover switching grasping mechanism, 68 - Worm switching grasping mechanism, 69 - Worm switching groove block, 70 - Worm linear vibrating groove, 71 - Hoop shell upper cover linear vibrating groove, 72 - Loading station, 73 - Hoop shell upper cover switching grasping mechanism, 74 - Spacing feet, 75 - Horizontal cylinder, 76 - Longitudinal slider, 77 - Horizontal slider, 78 - Worm grasping mounting frame, 79 - Worm pneumatic gripper, 80 - Worm chute, 81 - Worm bearing groove, 82 - Worm switching cylinder, 83 - Longitudinal cylinder, 84 - Hoop shell upper cover pneumatic gripper, 85 - Hoop shell upper cover switching groove block, 86 - Hoop shell upper cover switching cylinder, 87 - Material taking notch, 88 - Hoop shell upper cover chute, 89 - L-shaped vertical plate, 90 - Hoop shell upper cover bearing table, 91 - Worm rear limit block, 92 - Worm front limit block, 93 - Base plate, 94 - Hoop shell upper cover, 95 - Worm, 96 - Horizontal moving slider, 97 - Lifting slider, 98 - Component grasping pneumatic gripper, 99 - Horizontal moving cylinder, 100 - Hoop shell upper cover profiling limit block, 101 - Thrust head, 102 - Moving platform, 103 - Clamping and transferring tooling, 104 - Finger clamping cylinder, 105 - First lifting cylinder, 106 - Second lifting cylinder, 107 - First riveting machine, 108 - Second riveting machine, 109 - Pneumatic gripper, 110 - Left and right feeding cylinders, 111 - Feeding slide rail, 112 - Mounting vertical plate, 113 - Pressing cylinder114-belt pressing block, 115-belt pressing head, 116-torque sensor, 117-front and rear feeding cylinders, 118-locking motor, 119-diverter cylinder, 120-feeding mechanism, 121-diverter guide hopper, 122-upper cylinder, 123-forward cylinder, 124-optical fiber sensor, 125-arc guide block, 126-hoop shell pressing block, 127-hoop shell support block, 128-locking sleeve, 129-backward push block, 130-backward moving frame, 131-upper support block, 132-forward push block, 133-feeding port, 134-support block telescopic cylinder, 135-backward push cylinder, 136-left push cylinder, 137-moving out frame, 138-slide rail, 139-detection through hole, 140-guide groove, 141-pressing table. DETAILED DESCRIPTION

[0078] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0079] An integrated forming device for an A-type worm drive clamp, the innovation of which is that it comprises a mounting platform 16 and a clamp band straightening, feeding and cutting unit 2, a feeding riveting bottom unit 3, a moving unit 11, a worm upper cover assembly unit 6, a riveting upper cover unit 5, a clamp band ring forming unit and a locking detection unit 9 installed on the mounting platform,

[0080] A band straightening, feeding and cutting unit is arranged on the left side of the front end of the mounting platform, a feeding and riveting bottom unit is arranged at the rear of the band straightening, feeding and cutting unit, a moving unit for taking materials is arranged on the right side in front of the feeding and riveting bottom unit, a worm upper cover assembly unit and a riveting upper cover unit are arranged in sequence from back to front behind the moving unit, and a band ring forming unit and a locking detection unit are arranged in sequence from back to front at the front end of the right side of the moving unit;

[0081] The band straightening, feeding and cutting unit is used to straighten and cut the material band pulled out from the band roll in sequence to form a band;

[0082] The feeding and riveting bottom unit is used to feed the hoop shell bottom support and load it onto the hoop band for riveting;

[0083] The moving unit is used to transfer the processed parts, specifically, firstly, the hoop band riveted with the hoop shell bottom bracket is transferred to the front end of the worm upper cover assembly unit; then the assembled part is transferred to the riveting upper cover unit for riveting the upper cover, at which time, the hoop band is assembled with the hoop shell and the worm; then the assembled part is transferred to the hoop band ring forming unit for forming the hoop band ring;

[0084] The locking detection unit is used to drive the worm to allow the free end of the hoop to penetrate into the hoop shell.

[0085] 1. Forming of the hoop band on the clamp

[0086] The described hoop belt straightening, feeding and cutting unit includes a straightening mechanism 23, a servo sliding table module 24, a sliding seat, a moving pressing cylinder 26, a fixed pressing cylinder 27, a cutting module 20 and a cutting cylinder. A first mounting plate 1 extending horizontally forward is mounted on the mounting table, and the straightening mechanism, the servo sliding table module, the fixed pressing cylinder and the cutting module are sequentially mounted on the first mounting plate from front to back.

[0087] Since the raw material to be processed is a hoop belt roll, it is necessary to straighten the hoop belt. The described straightening unit includes a straightening mounting frame, an upper straightening wheel and a lower straightening wheel. The lower straightening wheels are evenly distributed at intervals along the length direction of the straightening mounting frame, and the upper straightening wheels are installed at intervals above the lower straightening wheels and are arranged staggeredly with them.

[0088] A sliding seat that slides back and forth is provided on the servo sliding table module. A moving pressing cylinder is mounted on the sliding seat. A square hole positioning block 32 is mounted on the rod of the moving pressing cylinder. A fixed pressing cylinder is fixedly installed at the rear end of the servo sliding table module. A long hole positioning block 33 is mounted on the rod of the fixed pressing cylinder. A cutting module is mounted at the rear of the long hole positioning block. The cutting knife on the cutting module is driven by a cutting cylinder.

[0089] When feeding, the moving pressing cylinder drives the square hole positioning block to descend, and inserts the square hole plug on it into the square hole of the hoop belt. Then the servo sliding table module works, and the moving pressing cylinder drives the hoop belt to move backward.

[0090] An origin detection switch flap extending downward is mounted at the side end of the sliding seat. An origin switch is embedded on the servo sliding table module. The origin detection switch is in a normally off state. The origin detection switch flap moves with the sliding seat. When the origin detection switch flap covers the origin detection switch, the detection switch light is on, and this position is regarded as the origin of the servo motor. Based on this, the pulse value of the servo motor is determined, that is, the feeding length of the moving pressing cylinder.

[0091] Since the hoop belt before cutting is relatively long, in order to prevent the hoop belt from warping and affecting the cutting quality in the subsequent process, the device further includes a baffle plate 25. A baffle plate is mounted on the right side of the sliding seat through a mounting frame. The lower edge of the baffle plate is placed above the passing hoop belt.

[0092] It also includes a feeding detection mechanism 22. A feeding detection mechanism is arranged at the front end of the straightening mechanism. The feeding detection mechanism is composed of a mounting frame 31, an upper wheel 29, a lower wheel 30 and a photoelectric switch 28. An upper wheel and a lower wheel are arranged oppositely up and down on the mounting frame. A photoelectric switch is arranged behind the mounting frame. The upper end surface of the photoelectric switch is flush with the upper end surface of the lower wheel. The photoelectric switch is signal-connected to the moving pressing cylinder. Through the setting of the feeding detection mechanism, it can detect whether there is material. On the one hand, it plays a role in sending signals for the feeding work. On the other hand, it plays a role in preventing personal injury caused by misoperation.

[0093] During use, place the coiled hoop belt reel on the feeder, take out its end, pass it through the feeding hole (between the upper wheel and the lower wheel) of the feeding detection mechanism, and then reach the feeding mechanism composed of a servo sliding table module, a sliding seat and a moving pressing cylinder through the straightening unit;

[0094] The square hole positioning block under the moving pressing cylinder is inserted into the square hole 34 on the hoop belt. Under the action of the servo sliding table module, the hoop belt is pulled backward. When the long hole 35 on the hoop belt moves below the long hole positioning block of the fixed pressing cylinder, the long hole positioning block presses it. The cutting position 36 of the hoop belt is exactly below the cutting knife. At this time, with the hoop belt fixed, a stable cutting work is completed, and the long hoop belt forms a hoop belt assembled on the clamp.

[0095] By designing the existing method of manually cutting and feeding materials to be completely completed by machines, the cutting efficiency is greatly improved. Since the operation of workers is reduced, both the processing cost and the labor intensity are reduced, and it is safe and reliable with good product consistency.

[0096] II. Riveting the bottom support of the clamp shell on the hoop belt

[0097] The feeding and bottom riveting unit includes a clamp shell bottom support vibrating disk 12, a straight vibrating chute 37, a bottom pushing cylinder 40, a feeding chute 41, a bottom riveting die 39 and a bottom riveting cylinder 38. A bottom riveting die driven by a bottom riveting cylinder is installed at the rear of the hoop belt straightening, feeding and cutting unit. A feeding chute is arranged behind the bottom riveting die. A bottom pushing cylinder is arranged behind the feeding chute. The piston rod of the bottom pushing cylinder drives a pushing block 64 to stretch in the feeding chute. A feeding port 65 is opened on the left side of the feeding chute. The feeding port is connected to a clamp shell bottom support vibrating disk through a straight vibrating chute. A detection switch 66 is installed on the feeding chute opposite to the straight vibrating chute. The detection switch is signal-connected to the bottom pushing cylinder.

[0098] Under the action of the linear vibration chute, the hoop shell bottom support will be continuously conveyed forward. To avoid interfering with the conveyance of the hoop shell bottom support in the riveting direction, a pressure block 63 is also designed, that is, a pressure block driven by a pressure cylinder 62 to lift and lower is provided at the upper end of the feed chute inlet. In this way, the pressure block can fix the hoop shell bottom support to be conveyed. After the previous hoop shell bottom support is sent out and the bottom pushing cylinder is restored, the pressure block releases the hoop shell bottom support.

[0099] The described bottom riveting die includes an upper die holder 43, a fixing plate 44, an upper die 45, a lower die holder 51, a lower backing plate 52, a lower die insert frame 46, a lower die insert 47, a lower die core 48, a lower die support spring 49, a lower die support cylinder 50, a stop block 57 and a stop block compression spring 53. The upper die holder and the lower die holder are arranged opposite to each other up and down. Fixing plates are provided at the four corners of the lower end of the upper die holder, and an upper die is provided in the middle of the bottom end of the upper die holder. The lower end face of the upper die is an upwardly concave arc structure; A bottom riveting cylinder for driving its lifting is installed at the top of the upper die holder;

[0100] On the upper end face of the lower die holder, a lower backing plate and a lower die insert frame are arranged in sequence from bottom to top. A lower die insert is installed inside the lower die insert frame, and a lower die core opposite to the upper die is sleeved inside the lower die insert. The upper end face of the lower die core is an upwardly convex arc structure. A limit groove is provided at the bottom of the lower die core, and an upper limit groove is provided on the lower backing plate opposite to the limit groove. The lower die support spring is installed between the upper limit groove and the lower limit groove;

[0101] A stop block is provided at the front end of the lower die core. A spring positioning pin 54 inserted on the lower backing plate is sleeved inside the stop block, and a stop block compression spring is sleeved on the spring positioning pin. The upper end face and the lower end face of the stop block compression spring are respectively limited in the limit grooves formed at the bottom of the stop block and the upper part of the lower backing plate.

[0102] The described bottom riveting die also includes a hoop shell bottom support limiting mechanism. This hoop shell bottom support limiting mechanism includes a limiting cylinder 58 and a limiting head 59. Blocks are provided on the left and right sides of the lower die insert frame. A guide hole is opened on the left block, and a limiting head controlled by the limiting cylinder is telescopically installed in the guide hole. The guide hole is higher than the upper end face of the lower die core and is located directly above it.

[0103] To prevent the problem that the lower die support spring fails and cannot eject the lower die core, a lower die support cylinder is also designed. A first telescopic hole is provided at the middle position of the bottom of the upper limit groove, and a second telescopic hole opposite to it is provided on the lower die holder below the first telescopic hole. The through hole formed by the inner hole of the lower die support spring, the first telescopic hole and the second telescopic hole is a telescopic hole. A lower die support cylinder is installed at the bottom of the lower die holder, and the cylinder rod of the lower die support cylinder telescopically moves in the telescopic hole.

[0104] It further includes a strap guiding mechanism, which includes left and right guiding blocks 56 and upper and lower guiding through blocks 55. In the feeding direction of the strap, left and right guiding blocks arranged opposite to each other are installed at the front end of the material blocking block. The channel between the two left and right guiding blocks forms a guiding channel. At the front end of the guiding channel, there is an upper and lower guiding through block, and a perforation is provided on the upper and lower guiding through block. The left and right guiding blocks are of an integrally formed structure, which consists of a vertical part and an inclined part that is inclined outward at the upper end of the vertical part. A Y-shaped guiding channel is formed between the two left and right guiding blocks.

[0105] The working principle of the feeding and riveting bottom unit is as follows:

[0106] The hoop shell bottom tray vibrating disk and the linear vibrator slide send the hoop shell bottom to the lower die core and make it abut against the material blocking block. At this time, the protrusion 60 on the limit head of the hoop shell bottom tray limiting mechanism is stuck between the two hoop shell upper cover riveting claws on both sides of the hoop shell bottom tray to limit the hoop shell bottom tray; then the belt body of the strap 61 is fixed by the belt fixing claws 42, and the end passes through the upper and lower guiding through blocks and between the left and right guiding blocks. At this time, the square hole of the strap is directly above the front and rear strap riveting claws of the hoop shell bottom tray;

[0107] Start the riveting bottom cylinder. Under the action of the upper die, the strap riveting claws sleeved in the square hole are riveted on the strap. The elastic force of the material blocking block compression spring is very small to ensure that the strap can move downward with the downward pressure of the upper die. After the upper die is lifted, the lower die core is lifted to continue to complete the feeding and riveting work of the hoop shell bottom.

[0108] III. Assembly of the worm and the hoop shell upper cover

[0109] The worm upper cover assembly unit includes a worm feeding mechanism, a hoop shell upper cover feeding mechanism, a turntable tooling, and a worm upper cover grasping mechanism 15. The worm feeding mechanism is installed at the 3 o'clock direction of the turntable tooling, the hoop shell upper cover feeding mechanism is installed at the 12 o'clock direction of the turntable tooling, and the worm upper cover grasping mechanism is installed at the 6 o'clock direction of the turntable tooling.

[0110] The worm feeding mechanism includes a worm vibrating disk 17, a worm linear vibrator chute 70, and a worm switching grasping mechanism 68. A leftward-extending worm linear vibrator chute is butted at the discharge port of the worm vibrating disk. The worm linear vibrator chute is driven by a vibrator at its bottom to vibrate, and a worm switching grasping mechanism is provided at the right end of the worm linear vibrator chute;

[0111] The worm switching grabbing mechanism includes a worm switching cylinder 82, a worm switching slot block 69, a worm slide 80, a worm grabbing mounting frame 78, a transverse slider 77, a transverse cylinder 75, a longitudinal slider 76, a longitudinal cylinder 83 and a worm pneumatic clamp 79. A worm slide is installed below the discharge port of the worm straight vibration slot, and a worm switching slot block driven by a worm switching cylinder is slidably installed in the worm slide. A worm bearing slot 81 with left and right openings is provided on the worm switching slot block. A material taking notch is formed on the slot wall at the front position of the worm slide, and a worm pneumatic clamp is provided directly above the material taking notch. The worm pneumatic clamp is installed on the longitudinal slider, the longitudinal slider is driven by the longitudinal cylinder, the longitudinal cylinder is installed on the transverse slider, the transverse slider is driven by the transverse cylinder, and the transverse cylinder is installed on the worm grabbing mounting frame.

[0112] The working principle of worm feeding is as follows: with the vibration of the worm vibration plate and the worm straight vibration groove, the worm is transported forward. When it is transported to the discharge port of the worm straight vibration groove, the worm switching cylinder is activated, which pushes out the worm switching groove block, so that the worm is placed in the worm bearing groove of the worm switching groove block, and then the cylinder rod of the worm switching cylinder retracts, so that the worm bearing groove is opposite to the material removal cutout on the worm slide groove; at this time, the worm pneumatic clamp is activated, which first moves horizontally in the direction of the worm, and falls when it reaches directly above it. The worm pneumatic clamp grabs the worm and places it in the worm placement position on the turntable tooling.

[0113] The hoop shell upper cover feeding mechanism comprises a hoop shell upper cover vibration plate 13, a hoop shell upper cover straight vibration groove 71 and a hoop shell upper cover switching grabbing mechanism 67. A hoop shell upper cover straight vibration groove extending forward is connected to the discharge port of the hoop shell upper cover vibration plate. The hoop shell upper cover straight vibration groove is driven to vibrate by a vibrator located at the bottom thereof. A hoop shell upper cover switching grabbing mechanism is arranged at the front end of the hoop shell upper cover straight vibration groove.

[0114] The hoop shell cover switching grabbing mechanism 73 includes a hoop shell cover switching cylinder 86, a hoop shell cover switching slot block 85, a hoop shell cover grabbing mounting frame, a transverse slider, a transverse cylinder, a longitudinal slider, a longitudinal cylinder and a hoop shell cover pneumatic clamp 84. A hoop shell cover slide 88 is installed below the discharge port of the hoop shell cover straight vibration slot, and a hoop shell cover switching slot block driven by the hoop shell cover switching cylinder is slidably installed in the hoop shell cover slide. A hoop shell cover bearing slot with front and rear openings is provided on the hoop shell cover switching slot block, and a material taking notch 87 is formed on the slot wall at the right position of the hoop shell cover slide, and a hoop shell cover pneumatic clamp is provided just above the material taking notch, and the hoop shell cover pneumatic clamp is installed on the longitudinal slider, the longitudinal slider is driven by the longitudinal cylinder, the longitudinal cylinder is installed on the transverse slider, the transverse slider is driven by the transverse cylinder, and the transverse cylinder is installed on the hoop shell cover grabbing mounting frame.

[0115] The working principle of the hoop shell upper cover feeding mechanism is the same as that of the worm gear feeding mechanism.

[0116] The described turntable tooling includes a turntable 14, a driving motor, and loading stations 72 that are circumferentially spaced and evenly distributed on the turntable. A driving motor for driving its rotation is installed below the turntable; the loading stations include a bottom plate 93, an L-shaped vertical plate 89, a hoop shell upper cover bearing platform 90, a worm front limit block 92, and a worm rear limit block 91. The bottom plates are circumferentially spaced and evenly distributed on the turntable. L-shaped vertical plates are installed on the bottom plates and are arranged oppositely left and right. Two spaced hoop shell upper cover bearing platforms are provided between the two L-shaped vertical plates. The width between the two hoop shell upper cover bearing platforms is adapted to the width of the bottom of the hoop shell upper cover. A worm front limit block and a worm rear limit block are respectively installed between the two hoop shell upper cover bearing platforms and are arranged front and back.

[0117] The turntable tooling is used for the transportation of the worm 95 and the hoop shell upper cover 94, and it rotates counterclockwise under the action of the driving motor. The distance between the two L-shaped vertical plates can be adjusted according to the width of the hoop shell upper cover. As Figure 20 shown, the hoop shell upper cover is placed on the hoop shell upper cover bearing platform between the two L-shaped vertical plates, and the worm is placed between the worm front limit block and the worm rear limit block at the lower part of the hoop shell upper cover.

[0118] The hoop shell upper cover is placed on the upper part of the worm, thus assembling into a worm upper cover assembly. The turntable tooling continues to rotate counterclockwise by 180 degrees and reaches the worm upper cover grasping mechanism.

[0119] The described worm upper cover grasping mechanism includes a component grasping pneumatic gripper 98, a lifting slider 97, a lifting cylinder 4, a horizontal moving slider 96, and a horizontal moving cylinder 99. A component grasping mounting frame is installed across between the front of the turntable tooling and the moving unit. A horizontal moving slider driven by the horizontal moving cylinder is installed on the component grasping mounting frame. A lifting slider driven by the lifting cylinder is installed on the horizontal moving slider. A component grasping pneumatic gripper is installed on the lifting slider.

[0120] In order to make the worm upper cover assembly move more smoothly during grasping, a hoop shell upper cover profiling limit block 100 is provided above the two grippers of the component grasping pneumatic gripper. The hoop shell upper cover profiling limit block has a profiling groove at the bottom of the block body and a structure with heads 101 pressed against the two side wings of the hoop shell upper cover on both sides of the profiling groove. During grasping, the profiling groove opening on the hoop shell upper cover profiling limit block is at the upper part of the hoop shell upper cover, and the heads are pressed against the two side wings of the hoop shell upper cover.

[0121] The worm upper cover grasping mechanism grasps the worm upper cover assembly and places it on the hoop band riveted with the hoop shell bottom support. At this time, the hoop shell upper cover riveting claws on the hoop shell bottom support extend out from the riveting holes on the two side wings of the hoop shell upper cover.

[0122] IV. Transfer and Riveting of the Worm Upper Cover Assembly

[0123] The described mobile unit includes a mobile platform 102 and a material clamping and transfer tooling 103. A mobile platform is provided in front of the worm upper cover assembly unit, and the material clamping and transfer tooling is arranged at intervals on the mobile platform;

[0124] Each of the described material clamping and transfer toolings includes a first lifting cylinder 105, a second lifting cylinder 106 and a finger clamping cylinder 104. The first lifting cylinder is installed on the mobile platform, the second lifting cylinder is installed on the first lifting cylinder in a lifting manner, and the finger clamping cylinder is installed on the second lifting cylinder in a driving manner.

[0125] In order to ensure the riveting quality, the upper cover riveting unit is composed of a first riveting machine 107 and a second riveting machine 108. The first riveting upper die in the first riveting machine is composed of a first upper die body and spacer feet 74 arranged at both ends of the first upper die body. In the middle of the lower end face of the first upper die body, there is a profiled arc groove 19. On both sides of the arc groove, there are inclined planes 21 inclined outward. Spacer feet are arranged on the table outside the inclined planes;

[0126] The second riveting upper die in the second riveting machine is composed of a second upper die body. In the middle of the lower end face of the second upper die body, there is a profiled arc groove. At both ends of the arc groove, there are pressing platforms 141 extending outward.

[0127] There are four of the described material clamping and transfer toolings, and the distance between the four material clamping and transfer toolings corresponds to the distance between the first riveting machine and the second riveting machine;

[0128] Since during riveting, the assembled product needs to be placed on the lower die body of the first riveting machine or the second riveting machine, therefore, in order to cooperate with the downward movement of the product, the material clamping and transfer tooling is designed into a stepped lifting structure. When the first lifting cylinder and the second lifting cylinder rise simultaneously, at this time the product is located between the upper die and the lower die of the upper cover riveting unit, and the left and right movement of the product can be realized; when the second lifting cylinder drops, the product hoop belt can fall into the lower die to complete the riveting operation; when the first lifting cylinder and the second lifting cylinder drop simultaneously, at this time the product is fixed on the riveting machine, and the finger clamping cylinder is located at the lower end of the product, so the left and right movement of the material clamping and transfer tooling is realized.

[0129] On the one hand, the material clamping and transferring tooling plays a role in transferring materials, and on the other hand, it can realize feeding into each riveting machine. Four material clamping and transferring toolings cooperate with each other to complete the material transfer in each process. The first material clamping and transferring tooling moves to the left, that is, in the previous process of feeding the worm upper cover assembly, the semi-finished product is placed; under the action of the moving platform, it moves to the right to complete the discharging of the worm upper cover assembly; then the first material clamping and transferring tooling loosens the hoop band and moves to the left to continue receiving materials (the hoop band riveted with the hoop shell bottom bracket), the second material clamping and transferring tooling clamps the hoop band and places it on the first riveting machine for riveting, then the second one moves to the left, the third one clamps the hoop band and places it on the second riveting machine for riveting, then it moves to the left again, and the fourth material clamping and transferring tooling takes the material and then discharges it.

[0130] The working process is as follows:

[0131] First of all, the worm is fed through the worm feeding unit and placed on the turntable.

[0132] Then, the turntable rotates counterclockwise by 90 degrees, so that the loading station carrying the worm rotates to the hoop shell upper cover feeding unit. Here, the hoop shell upper cover is fed. At this time, the hoop shell upper cover is placed on the worm.

[0133] Subsequently, the turntable tooling rotates reversely by 180 degrees, rotating the loading tooling carrying the worm upper cover assembly to the position of the worm upper cover grasping mechanism. The component clamping pneumatic claw clamps the worm upper cover assembly onto the first material clamping and transferring tooling. At this time, the first material clamping and transferring tooling has already clamped the hoop band riveted with the hoop shell bottom bracket.

[0134] Under the action of the moving platform, the first material clamping and transferring tooling is sequentially conveyed to the subsequent process to complete pre-riveting and full riveting, and finally discharges the material.

[0135] V. Forming of the hoop band

[0136] The hoop band forming unit described above includes a material taking mechanism 7 and a coiling mechanism 8. The material taking mechanism includes a front and rear material taking cylinder, an up and down material taking cylinder and a pneumatic claw. A transverse moving slider driven by the front and rear material taking cylinder is installed at the rear of the mounting frame, and a pneumatic claw driven by the up and down material taking cylinder is installed on the transverse moving slider; a coiling mechanism is provided at the rear of the material taking mechanism. The coiling mechanism is prior art and will not be elaborated here.

[0137] VI. Feeding the free end of the hoop band into the hoop shell

[0138] The locking detection unit described above includes an automatic tape threading and locking mechanism, a locking amount detection mechanism and a feeding mechanism 120. The locking amount detection mechanism is installed on the mounting vertical plate 112 of the automatic tape threading and locking mechanism, and a feeding mechanism is installed at the left end of the automatic tape threading and locking mechanism;

[0139] The automatic belt threading and locking mechanism is used to thread the free end of the hoop belt into the hoop shell, and under the action of the worm, the hoop belt is extended into the hoop shell; the locking amount detection mechanism is used to detect the hoop belt exposed at the right end of the hoop shell to meet the assembly requirements.

[0140] The described automatic belt threading and locking mechanism includes a horizontal mounting plate 10, a mounting vertical plate, a clamp fixing component, a clamp belt threading component, and a clamp worm locking component 18. The horizontal mounting plate has a structure with a notch in the front, and this notch is a blanking port 133. A mounting vertical plate is installed on the horizontal mounting plate opposite to the hoop belt straightening, feeding, and cutting unit. The clamp fixing component includes a pressing cylinder 113, a hoop shell pressing block 126, a hoop shell supporting block 127, and a supporting block telescopic cylinder 134. A telescopic hole is opened at the upper position of the mounting vertical plate, and a hoop shell supporting block is installed in this telescopic hole. The hoop shell supporting block is driven by the supporting block telescopic cylinder to move left and right in the telescopic hole. A hoop shell pressing block driven by the pressing cylinder to move up and down is arranged directly above the extended hoop shell supporting block.

[0141] The described clamp belt threading component includes a rear pushing block 129, an upper supporting block 131, a front pushing block 132, and an arc-shaped guiding block 125. A rear pushing block driven by a rear pushing cylinder 135 is arranged at the front lower part of the hoop shell supporting block. A front pushing block driven by a front pushing cylinder 123 is arranged at the rear lower part of the hoop shell supporting block. An arc-shaped guiding block is arranged behind the hoop shell supporting block. A guiding groove 142 is arranged on the bottom surface of the arc-shaped guiding block, and the upper end opening of this guiding groove is opposite to the position where the belt is to be threaded. An upper supporting block is arranged at the lower part of the hoop shell supporting block, and this upper supporting block is driven by a moving-out component. The moving-out component includes a left pushing cylinder 136, a moving-out frame 137, and an upper supporting cylinder 122. A left pushing cylinder is arranged below the mounting vertical plate. A moving-out frame that moves on a slide rail 138 is installed at the front end of the left pushing cylinder. An upper supporting cylinder is installed on the moving-out frame, and an upper supporting block is installed on the upper supporting cylinder.

[0142] The described clamp worm locking component includes a rear moving frame 130, a locking motor 118, and a locking sleeve 128. A rear pushing cylinder is installed in front of the mounting vertical frame. A rear moving frame is driven and installed on the rear pushing cylinder. A locking sleeve driven by the locking motor is installed on the rear moving frame. The rear pushing block is installed on the rear moving frame below the locking sleeve.

[0143] The working principle of the belt threading operation is as follows:

[0144] The hoop shell is fixed, and the rear push block pushes the hoop band ring of the clamp backward so that the free end of the hoop band is stuck in the guide groove of the arc guide block, and then the front push block is pushed forward so that the free end of the hoop band is inserted into the hoop shell along the guide of the arc guide block. In order to make the insertion more accurate, a band pressing block 114 is also designed at the position of the quick entry into the hoop shell. The clamp band threading assembly also includes a band pressing block, and a band pressing block linked to it is arranged at the rear end of the hoop shell clamping block. The band pressing block is composed of a block body and a hoop shell head groove arranged at the bottom of the block body, and the protruding parts on both sides of the hoop shell groove form a hoop band pressure head 115. The hoop band penetrates into the hoop shell under the guidance of the hoop band pressure head, and the gap between the hoop band pressure head and the hoop shell supporting block forms a band threading gap.

[0145] After the band is threaded, the locking motor drives the locking sleeve to rotate, thereby driving the worm in the hoop shell to rotate, and under the meshing of the worm and the hoop teeth, the free end of the band is threaded out of the hoop shell.

[0146] In order to avoid safety problems caused by manual direct feeding and misoperation, a feeding mechanism is installed at the front end of the feeding port. The feeding mechanism includes a feeding rail 111, a feeding slider, front and rear feeding cylinders 117, left and right feeding cylinders 110 and a pneumatic clamp 109. A feeding rail is installed on the left side of the mounting vertical plate, a feeding slider is installed on the feeding rail, the feeding slider is driven by the front and rear feeding cylinders, left and right feeding cylinders are installed on the feeding slider, and pneumatic clamps are installed on the left and right feeding cylinders.

[0147] During operation, the left and right feeding cylinders push out the pneumatic clamps to clamp the clamp on the clamp band ring forming unit, and then the left and right feeding cylinders retract and move forward. When the clamp is facing the clamp shell pushing block, the front and rear feeding cylinders operate to place the clamp shell on the clamp shell supporting block and then retract.

[0148] 7. Locking amount detection (detection of the number of exposed teeth)

[0149] The locking amount detection unit includes an optical fiber sensor 124. A detection through hole 139 is provided on the end surface of the arc-shaped guide block. The optical fiber sensor is installed on the mounting plate, and the probe of the optical fiber sensor is opposite to the detection through hole.

[0150] When the free end of the hoop moves in the arc guide block, the optical fiber sensor starts to record the number of hoop teeth passing through, thereby calculating the number of hoop teeth exposed at the right end of the hoop shell, achieving the purpose of online detection and avoiding the problems of low detection accuracy and missed detection caused by manual detection.

[0151] 8. Torque detection of clamps

[0152] The detection of torque is also an important part of the clamp detection, which directly reflects whether the worm and the clamp teeth can mesh, and determines the quality of the product. In order to prevent unqualified products with unqualified torque from being mixed into qualified products, the present invention designs a defective product diversion mechanism. The defective product diversion mechanism includes a torque sensor 116, a diversion cylinder 119 and a diversion hopper 121 with openings at the front and rear. A diversion hopper driven by a diversion cylinder is installed below the left end of the clamp worm locking assembly. A torque sensor is installed on the locking motor, and the torque sensor is signal-connected to the diversion cylinder.

[0153] When the diversion cylinder detects and receives a signal of unqualified product, it will push out the diversion hopper, so that the falling material will be collected elsewhere along the guide of the diversion hopper, avoiding being mixed into the qualified product collection basket directly below the material outlet.

[0154] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art can understand that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the content disclosed in the embodiments and drawings.

Claims

1. An integrated forming device for a type A worm drive clamp, characterized in that: It includes an installation table, a hoop belt straightening, feeding, and cutting unit, a feeding and bottom riveting unit, a moving unit, a worm upper cover assembling unit, an upper cover riveting unit, a hoop belt forming unit, and a locking detection unit. A hoop belt straightening, feeding, and cutting unit is arranged on the left side at the front end of the installation table. A feeding and bottom riveting unit is arranged behind the hoop belt straightening, feeding, and cutting unit. A moving unit for material taking is arranged on the right side in front of the feeding and bottom riveting unit. A worm upper cover assembling unit and an upper cover riveting unit are sequentially arranged from back to front behind the moving unit. A hoop belt forming unit and a locking detection unit are sequentially arranged from back to front at the front end on the right side of the moving unit; The hoop belt straightening, feeding, and cutting unit includes a straightening mechanism, a servo sliding table module, a sliding seat, a moving pressing cylinder, a fixed pressing cylinder, a cutting module, and a cutting cylinder. A first mounting plate extending horizontally forward is mounted on the installation table. A straightening mechanism, a servo sliding table module, a fixed pressing cylinder, and a cutting module are sequentially mounted on the first mounting plate from front to back. A sliding seat sliding back and forth is arranged on the servo sliding table module. A moving pressing cylinder is mounted on the sliding seat. A square hole positioning block is mounted on the piston rod of the moving pressing cylinder. A fixed pressing cylinder is fixedly mounted at the rear end of the servo sliding table module. A long hole positioning block is mounted on the piston rod of the fixed pressing cylinder. A cutting module is mounted behind the long hole positioning block. The cutting knife on the cutting module is driven by a cutting cylinder; It further includes a material blocking plate. A material blocking plate is mounted on the right side of the sliding seat through a mounting frame. The lower edge of the material blocking plate is placed on the passing hoop belt; It further includes a feeding detection mechanism. A feeding detection mechanism is arranged at the front end of the straightening mechanism. The feeding detection mechanism is composed of a mounting frame, an upper wheel, a lower wheel, and a photoelectric switch. An upper wheel and a lower wheel arranged oppositely up and down are arranged on the mounting frame. A photoelectric switch is arranged behind the mounting frame. The upper end face of the photoelectric switch is flush with the upper end face of the lower wheel. The photoelectric switch is signal-connected to the moving pressing cylinder.

2. The integrated forming device of a type A worm drive clamp according to claim 1, characterized in that: The feeding and bottom riveting unit includes a hoop shell bottom support vibrating disk, a linear vibrating chute, a bottom pushing cylinder, a feeding chute, a bottom riveting die, and a bottom riveting cylinder. A bottom riveting die driven by a bottom riveting cylinder is mounted behind the hoop belt straightening, feeding, and cutting unit. A feeding chute is arranged behind the bottom riveting die. A bottom pushing cylinder is arranged behind the feeding chute. The piston rod of the bottom pushing cylinder drives a pushing block to stretch in the feeding chute. A feeding port is opened on the left side of the feeding chute. The feeding port is connected to a hoop shell bottom support vibrating disk through a linear vibrating chute. A detection switch is mounted on the feeding chute opposite to the linear vibrating chute. The detection switch is signal-connected to the bottom pushing cylinder.

3. The integrated forming device of a type A worm drive clamp according to claim 2, characterized in that: A pressing block driven by a pressing cylinder to lift is arranged at the upper end of the feeding port of the feeding chute.

4. An integrated forming device for a type A worm drive clamp according to claim 2, characterized in that: The described bottom riveting die includes an upper die holder, a fixing plate, an upper die, a lower die holder, a lower backing plate, a lower die insert frame, a lower die insert, a lower die core, a lower die supporting spring, a lower die supporting cylinder, a stop block and a stop block compression spring. The upper die holder and the lower die holder are arranged opposite to each other vertically. Fixing plates are provided at the four corners at the lower end of the upper die holder, and an upper die is provided in the middle of the bottom end of the upper die holder. The lower end face of the upper die is an upwardly concave arc structure. A bottom riveting cylinder for driving its lifting is installed at the top of the upper die holder. On the upper end face of the lower die holder, a lower backing plate and a lower die insert frame are arranged successively from bottom to top. A lower die insert is installed inside the lower die insert frame. A lower die core opposite to the upper die is sleeved inside the lower die insert. The upper end face of the lower die core is an upwardly convex arc structure. A limiting groove is provided at the bottom of the lower die core, and an upper limiting groove is provided on the lower backing plate opposite to the limiting groove. The lower die supporting spring is installed between the upper limiting groove and the lower limiting groove. A stop block is provided at the front end of the lower die core. A spring positioning pin inserted on the lower backing plate is sleeved inside the stop block. A stop block compression spring is sleeved on the spring positioning pin. The upper end face and the lower end face of the stop block compression spring are respectively limited in the limiting grooves formed at the bottom of the stop block and the upper part of the lower backing plate.

5. The integrated molding device of a type A worm drive clamp according to claim 4, characterized in that: The bottom riveting die further includes a hoop shell bottom support limiting mechanism, which includes a limiting cylinder and a limiting head. Blocks are provided on the left and right sides of the lower die insert frame. A guiding hole is formed in the left block. A limiting head controlled by the limiting cylinder is telescopically installed in the guiding hole. The guiding hole is higher than the upper end face of the lower die core and is located directly above it.

6. The integrated forming device of a type A worm drive clamp according to claim 4, characterized in that: The bottom riveting die further includes a lower die supporting cylinder. A first telescopic hole is provided in the middle of the bottom of the upper limiting groove. A second telescopic hole opposite to it is provided on the lower die holder below the first telescopic hole. The through hole formed by the inner hole of the lower die supporting spring, the first telescopic hole and the second telescopic hole is a telescopic hole. A lower die supporting cylinder is installed at the bottom of the lower die holder, and the cylinder rod of the lower die supporting cylinder telescopically moves in the telescopic hole.

7. An integrated forming device for a type A worm drive clamp according to claim 4, characterized in that: It further includes a hoop belt guiding and aligning mechanism, which includes left and right guiding blocks and an upper and lower guiding through block. In the feeding direction of the hoop belt, left and right guiding blocks arranged opposite to each other are installed at the front end of the stop block. The channel between the two left and right guiding blocks forms a guiding channel. An upper and lower guiding through block is provided at the front end of the guiding channel, and a through hole is provided on the upper and lower guiding through block.

8. An integrated molding device for a type A worm drive clamp according to claim 1, characterized in that: The worm upper cover assembly unit includes a worm feeding mechanism, a hoop shell upper cover feeding mechanism, a turntable tooling and a worm upper cover grasping mechanism. A worm feeding mechanism is installed at the 3 o'clock direction of the turntable tooling, a hoop shell upper cover feeding mechanism is installed at the 12 o'clock direction of the turntable tooling, and a worm upper cover grasping mechanism is installed at the 6 o'clock direction of the turntable tooling.

9. An integrated forming device for a type A worm drive clamp according to claim 8, characterized in that: The worm feeding mechanism includes a worm vibrating bowl, a worm linear vibrating chute and a worm switching and grasping mechanism. A leftward-extending worm linear vibrating chute is butted at the discharge port of the worm vibrating bowl. The worm linear vibrating chute is driven by a vibrator located at its bottom to vibrate. A worm switching and grasping mechanism is provided at the right end of the worm linear vibrating chute. The described worm gear switching and grasping mechanism includes a worm gear switching cylinder, a worm gear switching groove block, a worm gear chute, a worm gear grasping mounting frame, a transverse slider, a transverse cylinder, a longitudinal slider, a longitudinal cylinder, and a worm gear pneumatic gripper. A worm gear chute is installed below the discharge port of the worm gear linear vibrating chute. A worm gear switching groove block driven by the worm gear switching cylinder is slidably installed in the worm gear chute. A worm gear bearing groove with left and right openings is provided on the worm gear switching groove block. A material taking notch is formed on the groove wall of the worm gear chute at a position closer to the front. A worm gear pneumatic gripper is provided directly above the material taking notch. The worm gear pneumatic gripper is installed on the longitudinal slider. The longitudinal slider is driven by the longitudinal cylinder. The longitudinal cylinder is installed on the transverse slider. The transverse slider is driven by the transverse cylinder. The transverse cylinder is installed on the worm gear grasping mounting frame.

10. The integrated forming device of a type A worm drive clamp according to claim 8, characterized in that: The described upper cover feeding mechanism for the hoop shell includes a hoop shell upper cover vibrating bowl, a hoop shell upper cover linear vibrating chute, and a hoop shell upper cover switching and grasping mechanism. A forward-extending hoop shell upper cover linear vibrating chute is connected to the discharge port of the hoop shell upper cover vibrating bowl. The hoop shell upper cover linear vibrating chute is driven to vibrate by a vibrator located at its bottom. A hoop shell upper cover switching and grasping mechanism is provided at the front end of the hoop shell upper cover linear vibrating chute. The described hoop shell upper cover switching and grasping mechanism includes a hoop shell upper cover switching cylinder, a hoop shell upper cover switching groove block, a hoop shell upper cover grasping mounting frame, a transverse slider, a transverse cylinder, a longitudinal slider, a longitudinal cylinder, and a hoop shell upper cover pneumatic gripper. A hoop shell upper cover chute is installed below the discharge port of the hoop shell upper cover linear vibrating chute. A hoop shell upper cover switching groove block driven by the hoop shell upper cover switching cylinder is slidably installed in the hoop shell upper cover chute. A hoop shell upper cover bearing groove with front and rear openings is provided on the hoop shell upper cover switching groove block. A material taking notch is formed on the groove wall of the hoop shell upper cover chute at a position closer to the right. A hoop shell upper cover pneumatic gripper is provided directly above the material taking notch. The hoop shell upper cover pneumatic gripper is installed on the longitudinal slider. The longitudinal slider is driven by the longitudinal cylinder. The longitudinal cylinder is installed on the transverse slider. The transverse slider is driven by the transverse cylinder. The transverse cylinder is installed on the hoop shell upper cover grasping mounting frame.

11. An integrated forming device for a type A worm drive clamp according to claim 8, characterized in that: The described turntable tooling includes a turntable, a driving motor, and loading stations circumferentially and evenly distributed on the turntable. A driving motor for driving its rotation is installed below the turntable. The loading stations include a bottom plate, an L-shaped vertical plate, a hoop shell upper cover bearing table, a worm gear front limit block, and a worm gear rear limit block. The bottom plates are circumferentially and evenly distributed on the turntable. An L-shaped vertical plate is installed on the bottom plate and arranged oppositely left and right. Two spaced hoop shell upper cover bearing tables are provided between the two L-shaped vertical plates. The width between the two hoop shell upper cover bearing tables is adapted to the width of the bottom of the hoop shell upper cover. A worm gear front limit block and a worm gear rear limit block are respectively installed between the two hoop shell upper cover bearing tables and arranged front and rear.

12. An integrated molding device for a type A worm drive clamp according to claim 8, characterized in that: The described worm upper cover grasping mechanism includes a component grasping pneumatic gripper, a lifting slider, a lifting cylinder, a horizontal moving slider, and a horizontal moving cylinder. A component grasping mounting frame is installed across between the front of the turntable tooling and the riveting unit. A horizontal moving slider driven by a horizontal moving cylinder is installed on the component grasping mounting frame. A lifting slider driven by a lifting cylinder is installed on the horizontal moving slider. A component grasping pneumatic gripper is installed on the lifting slider.

13. The integrated forming device of a type A worm drive clamp according to claim 1, characterized in that: The described moving unit includes a moving platform and a material clamping and transferring tooling. A moving platform is arranged in front of the worm upper cover assembly unit, and the material clamping and transferring tooling is arranged at intervals on the moving platform. Each of the described material clamping and transferring toolings includes a first lifting cylinder, a second lifting cylinder, and a finger clamping cylinder. A first lifting cylinder is installed on the moving platform. A second lifting cylinder is installed on the first lifting cylinder for lifting. A finger clamping cylinder is installed on the second lifting cylinder for driving.

14. An integrated molding device for a type A worm drive clamp according to claim 1, characterized in that: The described upper cover riveting unit is composed of a first riveting machine and a second riveting machine. The first riveting upper die in the first riveting machine is composed of a first upper die body and spacer feet arranged at both ends of the first upper die body. A profiled arc groove is provided in the middle of the lower end surface of the first upper die body. Inclined surfaces inclined outward are provided on both sides of the arc groove. Spacer feet are provided on the table surface outside the inclined surfaces. The second riveting upper die in the second riveting machine is composed of a second upper die body. A profiled arc groove is provided in the middle of the lower end surface of the second upper die body. Pressing platforms protruding outward are provided at both ends of the arc groove.

15. An integrated molding device for a type A worm drive clamp according to claim 1, characterized in that: The described hoop band forming unit includes a material taking mechanism and a coil winding mechanism. The material taking mechanism includes a front and rear material taking cylinder, an up and down material taking cylinder, and a pneumatic gripper. A lateral moving slider driven by the front and rear material taking cylinder is installed at the rear of the mounting frame. A pneumatic gripper driven by the up and down material taking cylinder is installed on the lateral moving slider. A coil winding mechanism is provided at the rear of the material taking mechanism.

16. An integrated forming device for a type A worm drive clamp according to claim 1, characterized in that: The described locking detection unit includes an automatic tape threading and locking mechanism, a locking amount detection mechanism, and a feeding mechanism. The locking amount detection mechanism is installed on the mounting vertical plate of the automatic tape threading and locking mechanism. A feeding mechanism is installed at the left end of the automatic tape threading and locking mechanism.

17. An integrated molding device for a type A worm drive clamp according to claim 16, characterized in that: The described automatic tape threading and locking mechanism includes a horizontal mounting plate, a mounting vertical plate, a clamp fixing component, a clamp tape threading component, and a clamp worm locking component. A mounting vertical plate opposite to the hoop band straightening, feeding, and cutting unit is installed on the horizontal mounting plate. The clamp fixing component includes a pressing cylinder, a hoop shell pressing block, a hoop shell supporting block, and a supporting block telescopic cylinder. A telescopic hole is opened at a position above the mounting vertical plate. The hoop shell supporting block is installed in the telescopic hole. The hoop shell supporting block is driven by the supporting block telescopic cylinder to move left and right in the telescopic hole. A hoop shell pressing block driven by the pressing cylinder to lift is arranged directly above the protruding hoop shell supporting block. The clamp strap threading assembly comprises a rear push block, an upper support block, a front push block and an arc guide block. A rear push block driven by a rear push cylinder is provided at the front lower part of the clamp shell support block, a front push block driven by a front push cylinder is provided at the rear lower part of the clamp shell support block, an arc guide block is provided at the rear of the clamp shell support block, a guide groove is provided on the bottom surface of the arc guide block, the upper end notch of the guide groove is opposite to the position where the strap is to be threaded, an upper support block is provided at the lower part of the clamp shell support block, the upper support block is driven by a removal assembly, the removal assembly comprises a front push cylinder, a removal frame and an upper support cylinder, a front push cylinder is provided below the mounting vertical plate, a removal frame is installed at the front end of the front push cylinder, an upper support cylinder is installed on the removal frame, and an upper support block is installed on the upper support cylinder; The clamp worm locking assembly includes a rearward moving frame, a locking motor and a locking sleeve. A rearward pushing cylinder is installed in front of the mounting frame, and a rearward moving frame is driven and installed on the rearward pushing cylinder. A locking sleeve driven by the locking motor is installed on the rearward moving frame; the rearward pushing block is installed on the rearward moving frame below the locking sleeve.

18. An integrated molding device for a type A worm drive clamp according to claim 17, characterized in that: The clamp band threading assembly also includes a band pressing block. A band pressing block linked to the clamp shell clamping block is arranged at the front end of the clamp shell clamping block. The band pressing block consists of a block body and a clamp shell head groove arranged at the bottom of the block body. The protruding parts on both sides of the clamp shell groove form a clamp band pressure head.

19. An integrated molding device for a type A worm drive clamp according to claim 16, characterized in that: The feeding mechanism includes a feeding rail, a feeding slider, front and rear feeding cylinders, left and right feeding cylinders and a pneumatic clamp. A feeding rail is installed on the left side of the mounting vertical plate, and a feeding slider is installed on the feeding rail. The feeding slider is driven by the front and rear feeding cylinders. Left and right feeding cylinders are installed on the feeding slider, and pneumatic clamps are driven and installed on the left and right feeding cylinders.

20. An integrated molding device for a type A worm drive clamp according to claim 17, characterized in that: The locking amount detection unit comprises an optical fiber sensor. A detection through hole is arranged on the end surface of the arc-shaped guide block. The optical fiber sensor is mounted on the mounting plate, and the probe of the optical fiber sensor is opposite to the detection through hole.

21. An integrated molding device for a type A worm drive clamp according to claim 17, characterized in that: The locking amount detection unit also includes a defective product diversion mechanism, which includes a torque sensor, a diversion cylinder and a diversion guide hopper with front and rear openings. A diversion guide hopper driven by a diversion cylinder is installed below the left end of the clamp worm locking assembly, and a torque sensor is installed on the locking motor, which is connected to the diversion cylinder signal.

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