CN110000548B - Automatic assembly system and assembly method of plug - Google Patents
Automatic assembly system and assembly method of plug Download PDFInfo
- Publication number
- CN110000548B CN110000548B CN201910455830.6A CN201910455830A CN110000548B CN 110000548 B CN110000548 B CN 110000548B CN 201910455830 A CN201910455830 A CN 201910455830A CN 110000548 B CN110000548 B CN 110000548B
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- steel pipe
- reaming
- station
- plug
- assembly
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 203
- 239000010959 steel Substances 0.000 claims abstract description 203
- 238000007599 discharging Methods 0.000 claims abstract description 74
- 238000005096 rolling process Methods 0.000 claims description 28
- 210000000078 claw Anatomy 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000009785 tube rolling Methods 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an automatic assembly system and an assembly method of a plug, and belongs to the technical field of automation. The system comprises a rack, a discharging device, two assembling devices and a steel pipe feeding device on the rack; the assembly device comprises a plug blanking structure, an index chuck, a chuck pressing plate, a reaming punch and an assembly punch; four bayonets are uniformly arranged on the index chuck and rotated forwards by 90 degrees each time, and a bayonet at the rear part of the upper side and a bayonet at the front part of the upper side are respectively a reaming station and an assembling station; the steel pipes on the reaming station and the assembling station are arranged along the left-right direction and clamped by the chuck pressing plate; the two reaming punches are respectively positioned at the left side and the right side of the steel pipe on the reaming station and are coaxial with the steel pipe; the two assembly punches are respectively positioned at the left side and the right side of the steel pipe on the assembly station and are coaxial with the steel pipe; the two index chucks are synchronously driven, and the reaming cylinder and the assembling cylinder are synchronously driven. The assembly of the plug can be automatically realized, and the device has the advantages of time and labor saving, high efficiency, unified product and the like.
Description
Technical Field
The invention belongs to the technical field of automation, and particularly relates to an automatic assembly system and an assembly method of a plug.
Background
A number of sorting and conveying rollers are used in the fruit processing arts, such as the graded row rollers disclosed in CN201020230312.9, such as the conveying rollers disclosed in 201410572573.1. Up to 600 conveyor rolls are available on a single machine. The common conveying roller or the grading row roller generally comprises a steel pipe and plugs at two ends of the steel pipe, wherein the plugs are of a cylindrical structure, a first-stage step can be arranged on the peripheral surface of each plug, the step surface on the inner side of each plug is inserted into the steel pipe, and a rotating shaft (with holes) is arranged at the circle center of the outer end of each plug. In the prior art, a plug is usually assembled on a steel pipe manually, the plug is inserted into one end of the steel pipe through a reaming cone, and a hammer is used for knocking the reaming cone to ream one end of the steel pipe; and reaming is performed at the other end in the same way. After reaming is completed, inserting the plug at one end of the steel pipe, and mounting the plug by hammering the plug; and then the plug is arranged at the other end in the same way. The mode has the defects of high working strength, low efficiency, incapability of unifying installation and the like.
Disclosure of Invention
In order to solve the problems, the embodiment of the invention provides an automatic assembly system and an assembly method of a plug, which can automatically realize the assembly of the plug and have the advantages of time and labor saving, high efficiency, unified products and the like. The technical scheme is as follows:
on one hand, the embodiment of the invention provides an automatic assembly system of a plug, which comprises a frame 1, and a discharging device, two assembly devices and a steel pipe feeding device which are sequentially arranged on the frame from front to back; the two assembly devices are arranged in bilateral symmetry and comprise a blanking structure of a plug, an index chuck 13 which is used for fixing and driving the steel pipe 2 to move, a chuck pressing plate 14 which is right above the index chuck 13 and can move up and down, a reaming punch 9 which is arranged outside the steel pipe 2 on the index chuck 13 and can move leftwards and rightwards, and an assembly punch 11; the indexing chuck 13 is arranged on the frame 1 in a left-right direction in a rotating way, is round, is uniformly provided with four bayonets matched with the steel pipe 2, rotates forwards for 90 degrees each time, and is provided with a reaming station and an assembling station respectively; the reaming station and the steel pipe 2 on the assembly station are arranged along the left-right direction and clamped by the chuck pressing plate 14; the steel pipe feeding device is used for conveying the steel pipe 2 to a reaming station, the steel pipe 2 on the reaming station is driven to an assembling station by an index chuck 13, and the discharging device is positioned in the adjacent front of the index chuck 13 and used for receiving the steel pipe 2 separated from the assembling station; two reaming punches 9 are respectively positioned at the left and right sides of the steel pipe 2 on the reaming station, are coaxial with the steel pipe 2 and are respectively driven by two reaming cylinders 10 at the left and right sides of the frame 1 to move in opposite directions so as to ream the left and right ends of the steel pipe 2; two assembly punches 11 are respectively positioned at the left side and the right side of the steel pipe 2 on the assembly station, are coaxial with the steel pipe 2 and are respectively driven by two assembly cylinders 12 at the left side and the right side of the frame 1 to move in opposite directions so as to press the plugs 3 on the steel pipe 2; the two index chucks 13 are synchronously driven, and the reaming cylinder 10 and the assembling cylinder 12 are synchronously driven; the two plug blanking structures are respectively positioned between the left side and the right side of the steel pipe 2 on the assembly station and the assembly punch 11 on the corresponding side, and are used for respectively conveying the two plugs 3 to the adjacent outer sides of the left end and the right end of the steel pipe 2 and coaxial with the steel pipe 2.
The steel pipe feeding device comprises a steel pipe discharging hopper 4 arranged on a frame 1 along the vertical direction, at least two steel pipe rolling beams 6 arranged on the frame 1 along the front-back direction, a pushing block 7 which is adjacently above the steel pipe rolling beams 6 and can push the steel pipe 2 on the steel pipe rolling beams forwards and backwards, and a pushing cylinder 8 which is arranged on the frame 1 and is used for driving the pushing block 7 to move forwards and backwards; the steel pipe discharging hopper 4 is arranged in the left-right direction, the upper part of the steel pipe discharging hopper is an upper open cone hopper, and the lower part of the steel pipe discharging hopper is a first rectangular pipe which can only pass through one steel pipe 2; the steel pipe rolling beam 6 is positioned below the steel pipe blanking hopper 4, the distance between the steel pipe rolling beam and the steel pipe blanking hopper is larger than the diameter of the steel pipe 2, and the upper side of the steel pipe rolling beam is level with the reaming station; the front side of the ejector block 7 is provided with an arc notch matched with the steel pipe 2; the pushing cylinder 8 is arranged along the front-back direction.
Specifically, the number of the steel pipe rolling beams 6 in the embodiment of the invention is two, the steel pipe rolling beams are respectively positioned at the outer sides of the two index chucks 13, and grooves are arranged on the steel pipe rolling beams and positioned right below the first rectangular pipe; the front side and the rear side of the bottom end of the first rectangular pipe are provided with guide wing plates along the front-rear direction.
The discharging device comprises a discharging ejector rod 22 arranged in the left-right direction and adjacent to the front of the index chuck 13, and a discharging inclined surface arranged in the front-back direction and obliquely downwards at the front side of the discharging ejector rod 22, wherein the discharging ejector rod 22 is arranged in the back-to-front direction and obliquely downwards; the discharging inclined plane is composed of a plurality of discharging inclined rods 21 which are arranged side by side left and right; the discharging ejector rod 22 and the discharging inclined rod 21 are arranged on the frame 1.
Wherein, the inner end of the reaming punch 9 in the embodiment of the invention is provided with a reaming cone with small inside and big outside; the assembly punch 11 is of a cylindrical structure, and the inner end of the assembly punch is coaxially provided with a contact pin matched with a rotating shaft on the plug 3; the contact pin is coaxial with the steel pipe 2 at the assembly station and can be inserted into the rotating shaft at the plug 3.
The reaming station and the assembling station are positioned on the same horizontal plane, and the assembling cylinder 12 and the reaming cylinder 10 on the same side of the frame 1 are arranged in parallel front and back; the middle part of the frame 1 is provided with a driving shaft and an indexing cylinder, the driving shaft is arranged along the left-right direction and is driven to rotate by the indexing cylinder, and two indexing chucks 13 are coaxially fixed on the driving shaft and have the same bayonet positions.
Specifically, a pressing plate cylinder 15 is arranged on the upper part of the frame 1 and right above the index chuck 13 in the vertical direction, the chuck pressing plate 14 is a circular arc plate matched with the index chuck 13, the circular arc plate is arranged at the lower end of a telescopic rod of the pressing plate cylinder 15, the lower end of the telescopic rod covers a reaming station and an assembling station, and the central angle of the circular arc plate is larger than 90 degrees.
The blanking structure of the plug in the embodiment of the invention comprises a blanking hopper 5 of the plug arranged on a frame 1 along the vertical direction, a positioning supporting groove 20 arranged right below the blanking hopper 5 of the plug and along the left-right direction, a blanking top block capable of clamping the plug 3 at the front side or the rear side of the bottom end of the blanking hopper 5 of the plug, a blanking cylinder 16 for driving the blanking top block to move forwards and backwards, a lifting supporting block 23 capable of moving upwards and downwards at the inner side of the positioning supporting groove 20 and a lifting cylinder 17 for driving the lifting supporting block 23 to move upwards and downwards; the plug discharging hopper 5 is arranged in the left-right direction, the upper part of the plug discharging hopper is an upper open cone hopper, and the lower part of the plug discharging hopper is a second rectangular pipe which can only pass through one plug 3; the outer side of the second rectangular pipe is provided with a strip-shaped opening for the rotating shaft of the plug 3 to penetrate out along the vertical direction; the positioning supporting groove 20 is an arc-shaped groove matched with the outer step surface of the plug 3, and the inner side of the positioning supporting groove is provided with a space for the lifting supporting block 23 to move up and down; the upper side of the lifting support block 23 is provided with an arc-shaped groove matched with the inner side step surface of the plug 3 along the left-right direction, the arc-shaped groove is driven by the lifting cylinder 17 to rise to be level with the inner side step surface of the plug 3, and the arc-shaped groove is driven by the lifting cylinder 17 to descend to be below the outer side step surface of the plug 3.
Preferably, the inner side of the index chuck 13 in the embodiment of the invention is provided with four clamping jaws 18 matched with the four clamping jaws in a sliding way along the radial direction, and the frame 1 and the inner side of the index chuck 13 are provided with cams 19 for driving the clamping jaws 18 to grip and release the steel pipe 2; an elastic component for driving the clamping jaw 18 to move towards the circle center of the index chuck 13 is arranged between the clamping jaw 18 and the index chuck 13, one end of the elastic component, which is close to the cam 19, is provided with a roller in a left-right direction, and the other end of the elastic component is provided with an arc-shaped claw matched with the clamping jaw; the inner ends of the claws 18 move along the cams 19 through rollers, the steel pipes 2 in the corresponding bayonets are gripped when the inner ends rotate to the upper sides of the cams 19, and the steel pipes 2 in the corresponding bayonets are released when the inner ends rotate to the lower sides of the cams 19.
On the other hand, the embodiment of the invention also provides an assembly method of the plug, which comprises the following steps:
s101 reaming and assembling: the blanking structure of the plug sends the plug 3 to adjacent outer sides of the left end and the right end of the steel pipe 2 on the assembly station; the reaming punches 9 on the left and right sides of the steel pipe 2 on the reaming station are driven by the reaming cylinders 10 to move oppositely to realize reaming, and meanwhile, the assembling punches 11 on the left and right sides of the steel pipe 2 on the assembling station are driven by the assembling cylinders 12 to move oppositely to realize assembling.
S102, feeding, discharging and station conversion: after reaming and assembling are completed, the chuck pressing plate 14 moves upwards, the two index chucks 13 rotate forwards by 90 degrees, and the steel pipe 2 on the reaming station is moved to the assembling station; in the rotating process of the index chuck 13, the steel pipe 2 on the assembly station falls into a discharging device for discharging; after the rotation is completed, the steel pipe feeding device forwards conveys the steel pipe 2 into a reaming station; after the steel pipe 2 is sent to the reaming station, the chuck pressing plate 14 moves downwards to fix the steel pipe 2 on the reaming station and the assembling station, and then step S101 is executed, and the like, so that the automatic assembly of the plug is realized.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: the embodiment of the invention provides an automatic assembly system and an assembly method of a plug, which can simultaneously perform reaming and assembly actions on the left end and the right end of a steel pipe on a reaming station and an assembly station respectively, and can simultaneously perform four actions continuously without interruption, wherein the feeding of the steel pipe and the feeding of the plug do not need to be manually participated in, and other processes do not need to be manually participated in. In conclusion, the system can automatically realize the assembly of the plug and has the advantages of high degree of automation, time and labor saving, high efficiency, good concentricity, uniform product quality and the like.
Drawings
Fig. 1 is a schematic structural diagram of an automatic assembly system of a plug according to an embodiment of the present invention;
FIG. 2 is a top view of an automated assembly system for a plug provided in an embodiment of the present invention;
FIG. 3 is a side view of an automated assembly system for a plug provided in an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the lifting support block in combination with the positioning support groove and the lifting support block when lifted;
fig. 5 is a schematic view of the structure of the lifting support block combined with the positioning support groove and the lifting support block when descending.
In the figure: 1 a frame, 2 steel pipes, 3 plugs, 4 steel pipe baits, 5 plug baits, 6 steel pipe sliding beams, 7 pushing blocks, 8 pushing cylinders, 9 reaming punches, 10 reaming cylinders, 11 assembling punches, 12 assembling cylinders, 13 indexing chucks, 14 chuck pressing plates, 15 pressing plate cylinders, 16 discharging cylinders, 17 lifting cylinders, 18 clamping jaws, 19 cams, 20 positioning supporting grooves, 21 discharging diagonal rods, 22 discharging ejector rods and 23 lifting supporting blocks.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
Example 1
Referring to fig. 1-5, an embodiment of the present invention provides an automatic assembly system for a plug, the system includes a frame 1, and a discharging device, two assembly devices and a steel pipe feeding device which are sequentially arranged on the frame from front to back; the two assembly devices (about the midpoint of the steel tube 2) are symmetrically arranged on the left and right, and comprise a blanking plug structure, an index chuck 13 which is fixed and drives the steel tube 2 to move, a chuck pressing plate 14 which is right above the index chuck 13 and can move up and down, a reaming punch 9 which is arranged on the outer side of the steel tube 2 on the index chuck 13 and can move left and right, an assembly punch 11 and the like. Wherein, two index chucks 13 are respectively positioned at the left and right sides of the steel pipe 2 (output of the steel pipe feeding device). The indexing chuck 13 is arranged on the frame 1 in a left-right direction in a rotating way, is round, is uniformly provided with four bayonets matched with the steel pipe 2 (the circle center angle between two adjacent bayonets is 90 degrees), rotates forwards for 90 degrees each time, and the bayonets at the rear part of the upper side and the bayonets at the front part of the upper side are respectively a reaming station and an assembling station. The reaming station is used for reaming the steel pipe 2, and the assembling station is used for assembling the plug 3 and the steel pipe 2; the bayonet is an arc gap with the size matched with the steel pipe 2, the steel pipe 2 is required to enter and escape conveniently, and in the embodiment, the radian of the front side is smaller than that of the rear side along the rotation direction of the index chuck 13. The steel pipes 2 on the reaming station and the assembling station are arranged along the left-right direction and clamped by the chuck pressing plate 14 at the same time. The steel pipe feeding device forwards conveys the steel pipe 2 to a reaming station, the steel pipe 2 on the reaming station is driven to an assembling station by an index chuck 13, and the discharging device is positioned in the adjacent front of the index chuck 13 and is used for receiving the steel pipe 2 separated from the assembling station (driven by the index chuck 13, naturally dropped or ejected by a discharging ejector rod 22). Two reaming punches 9 are respectively positioned at the left and right sides of the steel pipe 2 on the reaming station, are coaxial with the steel pipe 2 and are respectively driven by two reaming cylinders 10 at the left and right sides of the frame 1 to move in opposite directions so as to ream the left and right ends of the steel pipe 2; the two assembly punches 11 are respectively positioned at the left side and the right side of the steel pipe 2 on the assembly station (the steel pipe is fed into the plug 3 through the plug blanking structure) and coaxial with the steel pipe 2, and are respectively driven by two assembly cylinders 12 at the left side and the right side of the frame 1 to move in opposite directions so as to press the plug 3 on the steel pipe 2. The two index chucks 13 are synchronously driven to always ensure that the steel pipe 2 is arranged along the left and right directions; the two reaming cylinders 10 and the two assembling cylinders 12 are synchronously driven, so that the simultaneous reaming and assembling of the left end and the right end of the two steel pipes 2 is ensured, namely, four actions are simultaneously carried out, the product quality is uniform, and the concentricity is good. The blanking structures of the plugs of the two assembly devices are respectively positioned between the left side and the right side of the steel pipe 2 on the assembly station and the assembly punch 11 on the corresponding side, and are used for respectively conveying the two plugs 3 to the adjacent outer sides of the left end and the right end of the steel pipe 2 (the assembly station) in a certain direction and coaxial with the steel pipe 2 (the assembly station).
Referring to fig. 1-3, the steel pipe feeding device in the embodiment of the invention comprises a steel pipe discharging hopper 4 arranged on a frame 1 along a vertical direction, at least two steel pipe rolling beams 6 arranged on the frame 1 along a front-back direction, an ejection block 7 which is adjacently above the steel pipe rolling beams 6 and can eject the upper steel pipe 2 forwards and backwards, an ejection cylinder 8 used for driving the ejection block 7 to move forwards and backwards on the frame 1, and the like. Wherein, the steel pipe discharging hopper 4 is arranged along the left and right directions, the upper part of the steel pipe discharging hopper is an upper open cone hopper (the upper part is big and small, the front side and the rear side of the steel pipe discharging hopper are inclined planes, the bottoms of the inclined planes of the front side and the rear side are not flush, the distance between the inclined planes of the front side and the rear side is larger than the diameter of the steel pipe 2, and is smaller than 2 times of the diameter of the steel pipe 2 so as to ensure that a single steel pipe 2 passes through), and the lower part of the steel pipe discharging hopper is a first rectangular pipe (which is arranged along the left and right directions, and the length and the width of the steel pipe are respectively slightly larger than the length and the diameter of the steel pipe 2). The steel pipe rolling beam 6 is a rectangular beam which is horizontally arranged, is positioned below the steel pipe blanking hopper 4 and is provided with a distance larger than the diameter of the steel pipe 2, and the upper side of the steel pipe rolling beam is flush with the reaming station (before the steel pipe rolling beam extends to the reaming station or forwards) so as to ensure that the steel pipe 2 can roll forwards to the reaming station. The pushing block 7 is a strip block which is arranged in the front-back direction, and the front side of the pushing block is an arc notch matched with the steel pipe 2; the ejector cylinder 8 is disposed in the front-rear direction.
Specifically, referring to fig. 1-3, in the embodiment of the present invention, two steel pipe rolling beams 6 are provided, and the two steel pipe rolling beams are respectively located at the outer sides of the two index chucks 13 and are respectively used for supporting the left and right sides of the steel pipe 2, and a groove (shallower to avoid deflection when falling onto the steel pipe rolling beam 6) is arranged on the steel pipe rolling beams directly below the first rectangular pipe. The front side and the rear side of the bottom end of the first rectangular pipe are provided with guide wing plates along the front-rear direction (horizontally) for guiding. Correspondingly, two supporting steel pipes 2 are respectively provided with a pushing block 7, the rear part of the frame 1 is provided with a sliding frame which can slide along the front and back directions (in particular to a sliding rail which can pass through the front and back directions), the two pushing blocks 7 are arranged on the left side and the right side of the sliding frame side by side, and the middle part of the rear side of the sliding frame is connected with a telescopic rod of a pushing cylinder 8.
Referring to fig. 1-3, the discharging device in the embodiment of the invention comprises a discharging ejector rod 22 arranged in the left-right direction and adjacent front of the index chuck 13, a discharging inclined surface and the like, wherein the discharging inclined surface is arranged on the front side of the discharging ejector rod 22 in the front-back direction and inclined downwards, the discharging ejector rod 22 is arranged in the back-to-front direction and inclined downwards, is positioned at the front lower part of the assembly station, and is positioned above the front side of the bayonet at the front part of the lower side of the index chuck 13. The discharging inclined plane is composed of a plurality of discharging inclined rods 21 which are arranged side by side left and right; the discharging ejector rod 22 and the discharging inclined rod 21 are arranged on the frame 1. Specifically, the number of the discharging inclined rods 21 is 2, and the 2 discharging inclined rods 21 are respectively positioned on the inner sides of the 2 index chucks 13.
Referring to fig. 1-3, the reaming punches 9 in the embodiment of the present invention are arranged in the left-right direction, and the inner ends thereof are provided with reaming cones with smaller inside and larger outside (the diameter of the outer ends is larger than that of the steel pipe 2, and the diameter of the inner ends is smaller than that of the steel pipe 2). The assembly punch 11 is arranged along the left-right direction, is of a cylindrical structure, and is coaxially provided with a contact pin matched with a rotating shaft on the plug 3 at the inner end. The pins are arranged in the left-right direction, are coaxial with the steel pipe 2 on the assembly station (and are coaxial with the plugs on the positioning support groove 20 at the same time) and can be inserted into the rotating shafts (the diameter of which is slightly smaller than the diameter of the rotating shaft holes) on the plugs 3.
Referring to fig. 1-3, the reaming station and the assembling station in the embodiment of the invention are located on the same horizontal plane (the included angle between the connecting line of each bayonet and the index chuck 13 and the horizontal plane is 45 °). The assembling air cylinders 12 and the reaming air cylinders 10 on the same side of the frame 1 are arranged side by side (the telescopic rods are all positioned on the inner side). The middle part of the frame 1 is provided with a driving shaft and an indexing cylinder, the driving shaft is arranged along the left and right direction and is driven to rotate by the indexing cylinder, and two indexing chucks 13 are coaxially fixed on the driving shaft and have the same bayonet positions. Of course, other ways of driving the indexing movement of the two index chucks 13 simultaneously can be used in this patent.
Referring specifically to fig. 1-3, in the embodiment of the present invention, a pressing plate cylinder 15 is disposed on the upper portion of the frame 1 and directly above the index chuck 13 in the vertical direction, the chuck pressing plate 14 is an arc plate matched with the index chuck 13, and the arc plate is disposed at the lower end of a telescopic rod of the pressing plate cylinder 15, and covers the reaming station and the assembling station, and the central angle of the arc plate is greater than 90 ° (preferably less than 100 ° -for facilitating rolling and separating of the steel pipe 2).
Referring to fig. 1 to 5, the blanking structure of the blanking plug in the embodiment of the present invention includes a blanking plug hopper 5 disposed on a frame 1 along a vertical direction, a positioning support groove 20 (parallel to an assembly station) disposed right below the blanking plug hopper 5 (a second rectangular tube) and along a left-right direction, a blanking top block (not shown in the drawings) disposed at a front side or a rear side of a bottom end of the blanking plug hopper 5 and capable of clamping the blanking plug 3, a blanking cylinder 16 driving the blanking top block to move back and forth, a lifting support block 23 disposed at an inner side of the positioning support groove 20 and capable of moving up and down, and a lifting cylinder 17 driving the lifting support block 23 to move up and down. Wherein, the blanking hopper 5 of the choke plug is arranged along the left and right directions, the upper part of the blanking hopper is an upper open cone hopper (the upper part is big and small, the front side and the rear side are inclined planes), the lower part of the blanking hopper is a second rectangular pipe (which is arranged along the left and right directions and is slightly larger than the choke plug 3) only capable of allowing one choke plug 3 to pass through, and a vibration disc can be arranged above the blanking hopper to facilitate the directional automatic addition of the choke plug 3. The outside of the second rectangular pipe is provided with a strip-shaped opening along the vertical direction for the rotating shaft of the plug 3 to penetrate out so as to ensure that the plug 3 is sent into the positioning and supporting groove 20 according to a certain direction. The positioning support groove 20 is disposed between the adjacent outer side of the end of the steel pipe 2 and the assembly plug 11 on the corresponding side, is an arc-shaped groove (disposed along the left-right direction and coaxial with the steel pipe 2 on the assembly station) matched with the outer step surface of the plug 3, and is provided with a space for the lifting support block 23 to move up and down on the inner side. The upper side of the lifting support block 23 is provided with an arc-shaped groove (which is arranged along the left-right direction and is coaxial with the steel pipe 2 on the assembly station (when the lifting cylinder 17 ascends)) which is driven by the lifting cylinder 17 to be lifted to be flush with the inner side step surface of the plug 3 (which is higher than the positioning support groove 20 to horizontally arrange the plug 3 left-right), and the lifting support block is driven by the lifting cylinder 17 to be lifted to be lowered to the lower side or flush with the outer side step surface of the plug 3 so as to ensure that the plug 3 can move inwards. Specifically, the left and right sides of the front portion of the frame 1 are provided with a supporting beam along the front-back direction, the positioning supporting groove 20 is formed in the supporting beam, the lifting cylinder 17 is fixed at the bottom of the supporting beam along the vertical direction (a through hole for a telescopic rod to pass through is formed in the vertical direction), the inner side of the lifting cylinder is provided with a rectangular groove for installing the lifting supporting block 23 and enabling the lifting supporting block to move up and down, and the discharging cylinder 16 is arranged on the front side of the second rectangular pipe along the front-back direction and is fixed on the supporting beam. The working engineering is as follows: the discharging cylinder 16 enables the discharging top block to act, one plug 3 falls into the positioning supporting groove 20, and at the moment, the lifting cylinder 17 enables the lifting supporting block 23 to lift so as to ensure that the plug 3 is horizontal; then, the assembly cylinder 12 drives the assembly punch 11 to move inwards, when the contact pin is inserted into the rotating shaft of the plug 3, the lifting cylinder 17 enables the lifting support block 23 to descend so as to ensure that the plug 3 passes through, and the assembly cylinder 12 continues to drive the assembly punch 11 to move inwards so as to jack the plug 3 in the positioning support groove 20 into the end part of the steel pipe 2; after the assembly is completed, the lifting cylinder 17 is lifted, the assembly cylinder 12 returns, the discharging cylinder 16 enables the discharging top block to act, one plug 3 falls into the positioning supporting groove 20, and the like, so that intermittent discharging of the plug 3 is realized.
Specifically, the two index chucks 13 are respectively located right in front of the left and right sides of the steel pipe blanking hopper 4, the two plug blanking hoppers 5 are respectively located right in front of the adjacent outer sides of the left and right sides of the steel pipe blanking hopper 4, the two assembly punches 11 are respectively located outside the two positioning support grooves 20, and the two reaming punches 9 are respectively located right behind the two assembly punches 11.
Preferably, referring to fig. 1-3, the inside of the index chuck 13 in the embodiment of the present invention is provided with four jaws 18 slidably along its radial direction, which engage with four bayonets. A cam 19 (fixed to the frame 1, arranged parallel to the index chuck 13, and provided with a through hole for the passage of a drive shaft) for gripping and releasing the steel pipe 2 is provided on the frame 1 and on the inner side of the index chuck 13. Between the jaws 18 and the index chuck 13, elastic means (in particular springs) are provided for driving them towards the centre of the index chuck 13, and on the index chuck 13, along its radial direction, slide tracks are provided for the jaws 18 to slide, preferably on the front side of the tube 2 (in the bayonet) for facilitating the rolling of the tube 2 into the reaming station. The claw 18 is provided with a roller at one end (inner end) close to the cam 19 and is provided with an arc claw (specifically, an L-shaped structure bent backward, and an arc shape at one side contacted with the steel pipe 2) engaged with the bayonet at the other end. The lower side of the cam 19 is a protruding part, the inner end of the claw 18 moves along the cam 19 by a roller, when the claw rotates to the upper side of the cam 19, the steel tube 2 in the corresponding bayonet is gripped (the inner movement, preferably the steel tube 2 is gripped within the range of a reaming station and an assembling station, the steel tube 2 is loosened to be convenient for rolling in the steel tube 2 at the adjacent front side of the reaming station, the steel tube 2 is loosened to be convenient for discharging before the ejection rod 22), and when the claw rotates to the lower side of the cam 19, the steel tube 2 in the corresponding bayonet is released.
Example 2
Embodiment 2 provides a method for assembling a plug using the automatic assembly system provided in embodiment 1, the method comprising:
s101 reaming and assembling: the blanking structure of the plug sends the plug 3 to adjacent outer sides (to the positioning supporting groove 20, the blanking cylinder 16 and the lifting cylinder 17 act) of the left end and the right end of the steel pipe 2 on the assembly station and is coaxial with the steel pipe 2; the reaming punches 9 on the left and right sides of the steel pipe 2 on the reaming station are driven by the reaming cylinders 10 to move in opposite directions to realize reaming (at this time, the chuck pressing plate 14 presses the steel pipe 2), and meanwhile, the assembly punches 11 on the left and right sides of the steel pipe 2 on the assembly station are driven by the assembly cylinders 12 to move in opposite directions to realize assembly (the lifting cylinders 17 cooperate).
S102, feeding, discharging and station conversion: after reaming and assembling, the chuck pressing plate 14 moves upwards (pressing plate cylinder 15 acts), and the two index chucks 13 rotate forward by 90 degrees (indexing cylinder acts), so that the steel pipe 2 on the reaming station is moved to the assembling station. In the rotating process of the index chuck 13, the steel pipe 2 on the assembly station falls into a discharging device (a discharging ejector rod 22) for discharging; after the rotation is completed, the steel pipe feeding device immediately forwards the steel pipe 2 into the reaming station (the pushing cylinder 8 acts). After the steel pipe 2 is sent to the reaming station, the chuck pressing plate 14 moves downwards (the pressing plate cylinder 15 acts) to fix the steel pipe 2 on the reaming station and the assembling station, and then step S101 is executed, and the like, so that the automatic assembly of the plug is realized.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. An automatic assembly system of a plug is characterized by comprising a frame (1), and a discharging device, two assembly devices and a steel pipe feeding device which are sequentially arranged on the frame from front to back; the two assembly devices are arranged in bilateral symmetry and comprise a blanking structure of a plug, an index chuck (13) which is fixed and drives the steel pipe (2) to move, a chuck pressing plate (14) which is right above the index chuck (13) and can move up and down, and a reaming punch (9) and an assembly punch (11) which are arranged on the outer side of the steel pipe (2) on the index chuck (13) and can move leftwards and rightwards; the indexing chuck (13) is arranged on the frame (1) in a rotating manner along the left-right direction and is round, four bayonets matched with the steel pipe (2) are uniformly arranged on the indexing chuck, the indexing chuck rotates forwards for 90 degrees each time, and a bayonet at the rear part of the upper side and a bayonet at the front part of the upper side are respectively a reaming station and an assembling station; the reaming station and the steel pipe (2) on the assembly station are arranged in the left-right direction and are clamped by the chuck pressing plate (14); the steel pipe feeding device is used for conveying the steel pipe (2) to a reaming station, the steel pipe (2) on the reaming station is driven to an assembling station by an index chuck (13), and the discharging device is positioned in the adjacent front of the index chuck (13) and used for receiving the steel pipe (2) separated from the assembling station; two reaming punches (9) are respectively positioned at the left side and the right side of the steel pipe (2) on the reaming station, are coaxial with the steel pipe (2) and are respectively driven by two reaming cylinders (10) at the left side and the right side of the frame (1) to move in opposite directions so as to ream the left end and the right end of the steel pipe (2); two assembly punches (11) are respectively positioned at the left side and the right side of the steel pipe (2) on the assembly station, are coaxial with the steel pipe (2) and are respectively driven by two assembly cylinders (12) at the left side and the right side of the frame (1) to move in opposite directions so as to press the plugs (3) on the steel pipe (2); the two index chucks (13) are synchronously driven, and the reaming cylinder (10) and the assembling cylinder (12) are synchronously driven; the two plug blanking structures are respectively positioned between the left side and the right side of the steel pipe (2) on the assembly station and the assembly punch heads (11) on the corresponding sides, are used for respectively conveying the two plugs (3) to the adjacent outer sides of the left end and the right end of the steel pipe (2) and are coaxial with the steel pipe (2);
the steel pipe feeding device comprises a steel pipe discharging hopper (4) arranged on the frame (1) along the vertical direction, at least two steel pipe rolling beams (6) arranged on the frame (1) along the front-back direction, an ejection block (7) arranged above the steel pipe rolling beams (6) adjacently and an ejection cylinder (8) arranged on the frame (1) and used for driving the ejection block (7) to move back and forth; the pushing block (7) can push the steel pipe (2) on the steel pipe rolling beam (6) along the front-back direction; the steel pipe discharging hopper (4) is arranged along the left-right direction, the upper part of the steel pipe discharging hopper is an upper open cone hopper, and the lower part of the steel pipe discharging hopper is a first rectangular pipe which can only pass through one steel pipe (2); the steel pipe rolling beam (6) is positioned below the steel pipe blanking hopper (4) and the distance between the steel pipe rolling beam and the steel pipe rolling beam is larger than the diameter of the steel pipe (2), and the upper side of the steel pipe rolling beam is level with the reaming station; the front side of the pushing block (7) is provided with an arc-shaped notch matched with the steel pipe (2); the pushing cylinder (8) is arranged along the front-back direction;
the discharging device comprises a discharging ejector rod (22) arranged in the left-right direction and adjacent to the front of the index chuck (13) and a discharging inclined surface arranged in the front-back direction and obliquely downwards at the front side of the discharging ejector rod (22), and the discharging ejector rod (22) is obliquely downwards arranged from back to front; the discharging inclined plane is composed of a plurality of discharging inclined rods (21) which are arranged side by side left and right; the discharging ejector rod (22) and the discharging inclined rod (21) are arranged on the frame (1);
the reaming station and the assembling station are positioned on the same horizontal plane, and an assembling cylinder (12) and a reaming cylinder (10) on the same side of the frame (1) are arranged in parallel front and back; the middle part of the frame (1) is provided with a driving shaft and an indexing cylinder, the driving shaft is arranged in the left-right direction and is driven to rotate by the indexing cylinder, and two indexing chucks (13) are coaxially fixed on the driving shaft and have the same bayonet positions;
the blanking structure of the plug comprises a blanking hopper (5) arranged on a frame (1) along the vertical direction, a positioning supporting groove (20) arranged right below the blanking hopper (5) and along the left-right direction, a blanking top block capable of clamping the plug (3) at the front side or the rear side of the bottom end of the blanking hopper (5), a blanking cylinder (16) for driving the blanking top block to move forwards and backwards, a lifting supporting block (23) which is arranged at the inner side of the positioning supporting groove (20) and capable of moving upwards and downwards, and a lifting cylinder (17) for driving the lifting supporting block (23) to move upwards and downwards; the blanking hopper (5) of the plug is arranged along the left-right direction, the upper part of the blanking hopper is an upper open cone hopper, and the lower part of the blanking hopper is a second rectangular pipe which can only pass through one plug (3); the outer side of the second rectangular pipe is provided with a strip-shaped opening for the rotating shaft of the plug (3) to penetrate out along the vertical direction; the positioning supporting groove (20) is an arc-shaped groove matched with the outer step surface of the plug (3), and a space for the lifting supporting block (23) to move up and down is arranged on the inner side of the positioning supporting groove; the upper side of the lifting support block (23) is provided with an arc-shaped groove matched with the inner side step surface of the plug (3) along the left-right direction, the arc-shaped groove is driven by the lifting cylinder (17) to rise to be level with the inner side step surface of the plug (3), and the arc-shaped groove is driven by the lifting cylinder (17) to descend to the lower side of the outer side step surface of the plug (3).
2. The automatic assembly system of plugs according to claim 1, characterized in that the number of the steel tube rolling beams (6) is two and is respectively positioned at the outer sides of the two index chucks (13), and a groove is arranged on the steel tube rolling beams and is positioned right below the first rectangular tube; the front side and the rear side of the bottom end of the first rectangular pipe are provided with guide wing plates along the front-rear direction.
3. The automatic assembly system of plugs according to claim 1, characterized in that the inner end of the reaming punch (9) is provided with a reaming cone with small inside and large outside; the assembly punch (11) is of a cylindrical structure, and the inner end of the assembly punch is coaxially provided with a contact pin matched with the rotating shaft on the plug (3); the contact pin is coaxial with the steel pipe (2) on the assembly station and can be inserted into the rotating shaft on the plug (3).
4. The automatic assembly system of plugs according to claim 1, wherein a pressing plate cylinder (15) is arranged on the upper portion of the frame (1) and right above the index chuck (13) along the vertical direction, the chuck pressing plate (14) is an arc-shaped plate matched with the index chuck (13), and the arc-shaped plate is arranged at the lower end of a telescopic rod of the pressing plate cylinder (15) and covers the reaming station and the assembling station, and the central angle of the arc-shaped plate is larger than 90 degrees.
5. The automatic assembly system of the plug according to claim 1, characterized in that the inside of the index chuck (13) is provided with four jaws (18) which are matched with the four bayonets along the radial sliding direction, and a cam (19) which is arranged on the frame (1) and is positioned on the inside of the index chuck (13) and used for driving the jaws (18) to grasp and release the steel pipe (2) is arranged; an elastic part which drives the clamping jaw (18) to move towards the circle center of the indexing chuck (13) is arranged between the clamping jaw (18) and the indexing chuck (13), one end, close to the cam (19), of the elastic part is provided with a roller in a left-right direction, and the other end of the elastic part is provided with an arc-shaped claw matched with the clamping jaw; the inner ends of the clamping claws (18) move along the cams (19) through the rollers, the steel pipes (2) in the corresponding bayonets are gripped when the clamping claws rotate to the upper sides of the cams (19), and the steel pipes (2) in the corresponding bayonets are released when the clamping claws rotate to the lower sides of the cams (19).
6. A method of assembling an automated assembly system employing a plug according to any one of claims 1-5, the method comprising:
s101 reaming and assembling: the blanking structure of the plug sends the plug (3) to adjacent outer sides of the left end and the right end of the steel pipe (2) on the assembly station; the reaming punches (9) on the left side and the right side of the steel pipe (2) on the reaming station are driven by the reaming cylinders (10) to move in opposite directions to realize reaming, and meanwhile, the assembling punches (11) on the left side and the right side of the steel pipe (2) on the assembling station are driven by the assembling cylinders (12) to move in opposite directions to realize assembling;
s102, feeding, discharging and station conversion: after reaming and assembling are completed, the chuck pressing plate (14) moves upwards, the two index chucks (13) rotate forwards by 90 degrees, and the steel pipe (2) on the reaming station is moved to the assembling station; in the rotating process of the index chuck (13), the steel pipe (2) on the assembly station falls into a discharging device for discharging; after the rotation is completed, the steel pipe feeding device forwards feeds the steel pipe (2) into a reaming station; after the steel pipe (2) is sent to the reaming station, the chuck pressing plate (14) moves downwards to fix the reaming station and the steel pipe (2) on the assembling station, and then the step S101 is executed, and the like, so that the automatic assembly of the plug is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910455830.6A CN110000548B (en) | 2019-05-29 | 2019-05-29 | Automatic assembly system and assembly method of plug |
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| CN201910455830.6A CN110000548B (en) | 2019-05-29 | 2019-05-29 | Automatic assembly system and assembly method of plug |
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| CN110000548B true CN110000548B (en) | 2024-03-05 |
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