CN216858670U - Automatic welding equipment for handle body and handle seat - Google Patents

Abstract

The utility model discloses automatic welding equipment for a handle body and a handle seat, which comprises a control system, a rack and a rotary platform, wherein the rotary platform is controlled by the control system and is fixed on a dividing disc arranged on the rack; the automatic welding machine further comprises an automatic detection station, and the manual feeding station, the automatic material detection station, the automatic welding station and the automatic discharging station are uniformly arranged along the circumference of the rotary platform in a clockwise sequence. The welding equipment can meet the requirement of double-gun symmetric welding of the handle body and the handle seat, has high automation degree, small labor intensity of workers and greatly improved welding quality.

Description

Automatic welding equipment for handle body and handle seat

Technical Field

The utility model relates to the technical field of welding equipment, in particular to automatic welding equipment for a handle body and a handle seat.

Background

The handle is widely applied, for example, a metal handle is often used in a fireproof smoke exhaust device of a building and is formed by connecting a handle body and a handle seat, one end of the handle body is large, the other end of the handle body is small, the end parts of the two ends are all arc surfaces, a horizontal outward triangular convex tip is arranged in the transverse middle of the large arc surface, a transition plate with two sides being bevel edges is arranged between the large arc surface, namely a large head end, and a small arc surface, namely a small head end, and the large head end of the handle body is provided with a through hole at least comprising a pair of straight edges; the handle seat is a cylinder, a central hole of the cylinder is a stepped hole, one end far away from the handle body is a small round hole, one end close to the handle body is a large polygonal hole such as a hexagonal hole, one end part of the handle seat close to the handle body of the cylinder is embedded into the through hole at least comprising a pair of straight edges, the shape and the size of the embedded part are matched with those of the through hole at least comprising a pair of straight edges, and the joint of the handle seat and the handle body of the cylinder needs to be welded such as at least one pair of symmetrical spot welding.

However, in the prior art, the handle body and the handle seat of the metal handle are welded manually, so that the welding efficiency is low, the alignment accuracy of the handle body and the handle seat is poor, the labor intensity of welding workers is increased, and the welding quality needs to be improved.

If the automatic welding equipment with the control system in the prior art is adopted to automatically weld the handle body and the handle seat of the metal handle, the automatic welding equipment cannot meet the requirement of automatic welding of the handle body and the handle seat of the automatic metal handle for the following reasons: 1. generally, only one welding gun can be used for single-point welding, and the requirement of double-gun symmetrical welding of the handle body and the handle seat cannot be met. 2. The workpiece positioning device cannot meet the requirements of the embedding and pressing of the handle body and the handle seat of the metal handle. 3. The welding device is difficult to meet the requirements of symmetrical arrangement, lifting rotation, fine adjustment and the like. 4. The ground wire of the welding gun is difficult to ensure automatic connection during welding and automatic cut-off during welding stop. 5. The discharge device is not suitable for the grabbing of the metal handle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing automatic welding equipment for a handle body and a handle seat, which can symmetrically weld two welding guns.

The technical scheme of the utility model is that the automatic welding equipment for the handle body and the handle seat comprises a control system, a rack, a dividing disc which is electrically connected with the control system and is fixed on the rack, a rotating platform which is concentrically connected with the dividing disc, and a plurality of positioning devices for the handle body and the handle seat which are arranged on the rotating platform along the circumference, wherein the positioning devices at least correspond to a manual feeding station for manually placing the handle body and the handle seat, an automatic welding station for automatically welding symmetrical points at the joint of the handle body and the handle seat by adopting a double welding gun of the automatic welding device, and an automatic discharging station for grabbing a welded metal handle by adopting an automatic discharging device.

After adopting the structure, the automatic welding equipment for the handle body and the handle seat has the following advantages: the handle body and the handle seat to be welded are manually placed on the positioning device on the manual feeding station, and compared with a complex feeding device, the manual feeding device is relatively simple in structure. When the control system controls the rotary platform to rotate to the automatic welding station, the automatic welding device automatically welds two symmetrical points to the double welding guns at the joint of the handle body and the handle seat, and the requirement of symmetrical welding of the handle body and the double welding guns of the handle seat can be met. The automatic welding equipment is adopted to symmetrically weld the handle body and the handle seat, the welding efficiency is high, an operator only needs to initially place the metal handle to be welded into the positioning device, all other processes are automatically completed by the automatic welding equipment, the automation degree is high, the labor intensity of workers is low, and the welding quality is greatly improved.

Furthermore, the positioning device comprises a groove for embedding most of the handle body horizontally, the groove is used for accommodating the large head end of the handle body to be close to the center of the rotating platform, the part of the small head end of the handle body horizontally hangs in the air, the hanging part is positioned above the edge of the rotating platform, and a polygonal column which is convex upwards and is matched with the polygonal hole of the handle seat is arranged in one end of the large head end of the handle body accommodated in the groove; the positioning devices at two sides of the two bevel edges of the groove containing handle body are provided with first through holes which are convenient for the clamping jaws of the automatic discharging device to go deep to grab the welded handle body of the metal handle. After the structure is adopted, the manual feeding of the handle body and the handle seat is convenient, the adaptability of the handle body, the handle seat and the positioning device is good, the placing, the aligning and the positioning of the handle body and the handle seat are accurate, reliable, quick and convenient, and the positioning requirement of realizing automatic welding of the handle body and the handle seat of the metal handle can be completely met.

Furthermore, the automatic welding device comprises two electric welding machines and two welding guns, wherein the respective welding guns are electrically connected with the respective electric welding machines through leads, one ends of respective ground wires are electrically connected with the respective electric welding machines, and the other ends of the respective ground wires are electrically connected with the positioning device at the automatic welding station through an intermittent connection structure; the welding device is characterized by further comprising a first lifting cylinder fixed on the rack, a lifting support frame is fixed at the free end of a first piston rod of the first lifting cylinder, a pressure rod used for pressing a handle seat of a metal handle to be welded is fixed on the lifting support frame, a servo motor is further fixed on the lifting support frame, a rotatable support frame is fixed on a rotating shaft of the servo motor, two welding gun fixing frames are fixed on the rotatable support frame, and the upper parts of two welding guns symmetrically positioned on the two sides of the pressure rod are fixed on the respective welding gun fixing frames; and the welding gun, the ground wire and positioning device intermittent connecting structure, the lifting cylinder and the servo motor are all electrically connected with the control system. After the structure is adopted, the welding gun, the ground wire and positioning device intermittent connecting mechanism, the lifting cylinder and the servo motor are all electrically connected with the control system, and the on-off of the welding gun, the on-off of the ground wire, the on-off of the lifting cylinder and the on-off of the servo motor are all controlled by the control system. During automatic welding, the control system controls the first lifting cylinder and the servo motor to drive the pressure rod in the automatic welding device to accurately press the handle seat of the metal handle on the handle body, simultaneously, the two welding guns are aligned to two symmetrical points at the joint of the handle body and the handle seat, the control system controls the ground wire to be connected, and the two welding guns are started to automatically weld. The automatic welding device can automatically and symmetrically weld two points at the joint of the handle body and the handle seat, and can meet the requirement of double-gun welding of the handle body and the handle seat. The automatic welding device is fully automatic in the aspects of pressing the metal handle, accurately aligning two welding points, connecting the ground wire and welding, and has the advantages of high automation degree, strong pertinence, good adaptability, low labor intensity of workers, high welding efficiency and good welding quality.

Furthermore, the other end of the ground wire is intermittently and electrically connected with the positioning device in a specific structure that the positioning device is made of metal materials, and a metal screw with a metal round handle penetrates through a through hole of the rotating platform and then is screwed in a threaded hole at the bottom of the positioning device; and a ground wire automatic on-off cylinder electrically connected with the control system is arranged on the machine frame below the metal round handle, and a metal contact block which is connected with the other ends of the two ground wires and used for being tightly attached to the metal round handle during welding to conduct the ground wire or be separated from the metal round handle during welding stop is fixed on the free end of a second piston rod of the ground wire automatic on-off cylinder. After the structure is adopted, the control system controls the ground wire automatic on-off cylinder to drive the second piston rod to enable the metal contact block to be attached to the metal round handle in a clinging mode during welding, the metal handle to be welded is conducted with the ground wire through the positioning device to achieve normal welding, and after welding is completed, the control system controls the ground wire automatic on-off cylinder to drive the second piston rod to enable the metal contact block to be separated from the metal round handle without interfering rotation of the rotary platform. The intermittent connection structure of the ground wire is simple, the on-off is reliable, the automatic welding can be smoothly carried out, and the normal rotation and indexing of the index plate and the rotary platform of the automatic welding equipment can be ensured after the welding is finished, so that the automatic welding equipment has higher automation degree and better welding quality.

Furthermore, the rotatable support frame comprises a horizontal rotary table and two vertical plates fixed with the horizontal rotary table, and the two vertical plates are provided with a welding gun and an inner and outer position fine adjustment structure and an upper and lower position fine adjustment structure of the welding gun fixing frame relative to the vertical plates. After the structure is adopted, the positions of the inner direction and the outer direction of the two welding guns and the positions of the upper direction and the lower direction can be finely adjusted, so that the welding positions are more accurate, the welding quality is higher, and the automation degree of equipment is higher.

Further, the internal and external position fine adjustment structure is a manual fine adjustment structure: one side surface of each vertical plate is fixed with one side surface of a first connecting plate, the other side surface of the first connecting plate is in sliding connection with a horizontal sliding plate through a horizontal guide rail and a horizontal guide groove, a first nut and a horizontal adjusting bolt screwed in the first nut are arranged at the top of the first connecting plate, the rear end of the horizontal adjusting bolt is a first rotating handle for screwing force application, and the front end of the horizontal adjusting bolt is in rotating connection with a horizontal driving block fixed at the top of the horizontal sliding plate and is axially limited; the upper and lower position fine setting structure be manual fine setting structure, every level is kept away from a side of glide plane and a side of second connecting plate to the slide and is fixed, another side and a perpendicular slide of second connecting plate are through perpendicular to guide rail and perpendicular to guide slot sliding connection, the outside of second connecting plate have a second nut and close the perpendicular adjusting bolt that is in the second nut soon, perpendicular to adjusting bolt's lower extreme for close the second twist grip that the application of force was used soon, perpendicular to adjusting bolt's upper end with fix perpendicular to the drive block rotation connection and axial spacing in the outside perpendicular to the slide, welder is fixed on the lateral surface of perpendicular to the slide through the welder mount. After the structure is adopted, the fine adjustment structure of the inner position and the outer position is simple and reliable, the manual fine adjustment is convenient and accurate, the accurate positioning of the inner position and the outer position in the horizontal direction is further ensured, and the welding quality is further ensured. And the fine adjustment structure of the upper position and the lower position is simple and reliable, the manual fine adjustment is convenient and accurate, the accurate positioning of the vertical direction of the upper position and the lower position is further ensured, and the welding quality is further ensured.

Furthermore, the automatic discharging device comprises an inner and outer moving mechanism arranged on the frame and electrically connected with the control system, an up-down moving mechanism arranged on the inner and outer moving mechanism and two clamping jaws arranged on the up-down moving mechanism, wherein the two clamping jaws are used for penetrating into the two first through holes of the positioning device to grab out the handle body of the welded metal handle. After the structure more than adopting, automatic discharge device is with strong points for the unloading of metal handle, and can move inside and outside, can reciprocate again, especially two clamping jaws can go deep into in two first through-holes of positioner in order to grab out the handle body of welded metal handle, and discharge device is multiple functional, can satisfy the needs of the automatic discharge of welded metal handle completely.

Furthermore, the automatic discharging device has the specific structure that two mounting blocks are fixed with the frame, two ends of two horizontal first guide rods which are parallel up and down are fixed with the two mounting blocks, an internal and external moving cylinder is matched with the two first guide rods in a sliding manner, the free end of a third piston rod of the internal and external moving cylinder is fixed with the mounting block at the outer end, and a third connecting plate is fixed on the internal and external moving cylinder; a second lifting cylinder is fixed on the third connecting plate, and the free end of a fourth piston rod of the second lifting cylinder is connected with two clamping jaws. After adopting above structure, discharge apparatus simple structure, the operation is reliable and stable, and is swift and smooth and easy, has further guaranteed the automation of automatic discharge process.

Furthermore, a finger cylinder is fixed at the free end of a fourth piston rod of the second lifting cylinder, and the free ends of the two piston rods of the finger cylinder are fixed with respective clamping jaws. After adopting above structure, clamping jaw simple structure, the operation is reliable and stable, and is swift and smooth and easy, has further guaranteed the automation of automatic discharge process.

Furthermore, the positioning device is also correspondingly provided with a sensor for detecting the automatic detection station of whether the metal handle to be welded is arranged on the positioning device, and the manual feeding station, the automatic detection station, the automatic welding station and the automatic discharging station are uniformly arranged in a clockwise sequence along the circumference of the rotary platform. After the structure is adopted, the sensor detects whether the handle body and the handle seat to be welded exist or not in advance for the positioning device to be rotated to the automatic welding station, and feeds back an electric signal to the control system, if so, an automatic welding program is entered, and if not, the index plate and the rotary platform are continuously rotated, so that misoperation is avoided, energy is saved, and the processing efficiency is further improved.

Drawings

Fig. 1 is a schematic diagram showing an explosion structure of a metal handle in the prior art.

Fig. 2 is a schematic diagram of an explosion structure of a metal handle in the prior art.

Fig. 3 is a schematic perspective view of the automatic welding apparatus of the present invention.

Fig. 4 is a schematic view of an explosive structure of the automatic welding apparatus of the present invention.

FIG. 5 is a schematic perspective view of an automatic welding apparatus of the present invention with the housing removed.

Fig. 6 is a first schematic structural diagram of the automatic welding device, the rotary platform and the positioning device in the utility model.

FIG. 7 is a second schematic structural view of the automatic welding device, the rotary platform and the positioning device of the present invention.

Fig. 8 is a schematic perspective view of the automatic welding device of the present invention without two welding machines.

Fig. 9 is a schematic perspective view of the automatic welding device of the present invention without two welding machines.

Fig. 10 is an exploded view of the inner and outer position fine adjustment structure and the upper and lower position fine adjustment structure according to the present invention.

Fig. 11 is an exploded view of the inner and outer position fine adjustment structure and the up and down position fine adjustment structure according to the present invention.

Fig. 12 is a front view schematically showing the structure of the automatic discharging apparatus of the present invention.

Fig. 13 is a schematic perspective view of the automatic discharging apparatus of the present invention.

Fig. 14 is a schematic perspective view of a positioning device according to the present invention.

Fig. 15 is a schematic perspective view of a positioning device according to the present invention.

Shown in the figure: 1. a triangular convex tip, 2, a big head end, 3, a second through hole, 4, a handle body, 5, a small head end, 6, a bevel edge, 7, a straight edge, 8, a handle seat, 9, a round hole, 10, a polygonal hole, 11, an embedding part, 12, a manual feeding station, 13, an automatic detection station, 14, a button, 15, an electric welding machine, 16, a control panel, 17, a cover shell, 18, an automatic discharging station, 19, a frame, 20, a metal contact block, 21, a metal handle to be welded, 22, a rotating platform, 23, a positioning device, 24, an automatic discharging device, 25, a dividing disc, 26, a welded metal handle, 27, an automatic ground wire on-off cylinder, 28, a ground wire, 29, an automatic welding device, 30, a first lifting cylinder, 31, a servo motor, 32, an automatic welding station, 33, a welding gun, 34, a welding gun fixing frame, 35, a third guide rod, 36 and a supporting frame, 37. an inner and outer position fine adjustment structure 38, an upper and lower position fine adjustment structure 39, a lifting support frame 40, a pressure lever 41, a wire 42, a second piston rod 43, a second guide rod 44, a first piston rod 45, a horizontal rotary disc 46, a vertical guide groove 47, a vertical adjusting bolt 48, a horizontal driving block 49, a first nut 50, a horizontal adjusting bolt 51, a connecting block 52, a vertical plate 53, a first connecting plate 54, a horizontal guide groove 55, a horizontal sliding plate 56, a second connecting plate 57, a second nut 58, a vertical sliding plate 59, a vertical driving block 60, a horizontal guide rail 61, a vertical guide rail 62, a mounting block 63, a third connecting plate 64, a second lifting cylinder 65, a clamping jaw 66, a finger cylinder 67, a fourth piston rod 68, a third piston rod 69, a first guide rod, 70. the device comprises an inner and outer moving cylinder, 71, a first through hole, 72, a groove, 73, a polygonal column, 74, a counter bore, 75, a metal round handle, 76, a metal screw, 77, a baffle, 78, a first rotating handle, 79 and a second rotating handle.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It is to be noted that the description of the embodiments is provided to aid understanding of the present invention, and is not intended to limit the present invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, a metal handle in a fire-proof smoke exhaust valve in the prior art is formed by connecting a handle body 4 and a handle seat 8, wherein one end of the handle body 4 is large, the other end of the handle body is small, the end parts of the two ends are both arc surfaces, a horizontal outward triangular convex tip 1 is arranged in the transverse middle of the large arc surface, a transition plate with bevel edges 6 at two sides is arranged between the large arc surface, namely a large head end 2, and a small arc surface, namely a small head end 5, and a large head end 2 of the handle body 4 is provided with a second through hole 3 at least comprising a pair of straight edges 7. The handle seat 8 is a cylinder, the central hole of the cylinder is a stepped hole, one end far away from the handle body 4 is a small round hole 9, one end close to the handle body 4 is a large polygonal hole 10 such as a hexagonal hole, one end part, close to the handle body 4, of the handle seat 8 of the cylinder is embedded into the second through hole 3 at least comprising a pair of straight edges 7, the shape and the size of the embedded part 11 are matched with the shape and the size of the second through hole 3 at least comprising a pair of straight edges 7, and at least one pair of symmetrical spot welding is welded at the joint of the handle seat 8 of the cylinder and the handle body 4.

As shown in fig. 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

The automatic welding equipment for the handle body and the handle seat comprises a control system, a frame 19, an index plate 25 which is electrically connected with the control system and fixed on the frame 19, and a rotating platform 22 which is concentrically connected with the index plate 25. The above sentence can also be expressed as follows: comprises a control system, a frame 19 and a rotary platform 22 controlled by the control system and fixed on an index plate 25 arranged on the frame 19. A plurality of positioning devices 23 of the handle body 4 and the handle holder 8 are arranged circumferentially on the rotary platform 22. The positioning devices 23 correspond to at least the manual loading station 12 for manually placing the handle body 4 and the handle seat 8, the automatic welding station 32 for automatically welding symmetrical points, such as a pair of symmetrical points, at the joint of the handle body 4 and the handle seat 8 by using the automatic welding device 29 and the automatic unloading station 18 for grabbing the welded metal handle 26 by using the automatic unloading device 24.

The utility model relates to automatic welding equipment for a handle body and a handle seat, which can also be called a special welding production line for automatically welding the handle body and the handle seat. In other words, the automatic welding equipment is used for welding and fixing the handle body 4 or the handle main body and the handle seat 8 or the handle seat ring. The control system may also be referred to as a control assembly or control device. The rotary platform 22 may also be referred to as a rotary platform or a rotary work platform. The index plate 25 is a commercially available product, and is a mature prior art, and may also be called an index plate assembly or an index motor assembly or an index plate assembly, and the index plate 25 is generally driven by a servo motor, or may be driven by a stepping motor or a rotary cylinder. It will be understood that the present invention employs a horizontal indexing disk, with the rotary platform 22 concentrically connected to the indexing disk 25. The rack 19 is used for supporting various devices and various components, such as the dividing disc 25 and the rotary platform 22 are installed in the middle of the rack 19, the control system is dispersedly installed on the rack 19, the control system (not shown in the figure) generally comprises a main controller, such as a PLC programmed controller, an air source control component and various components, such as relays, sensors and the like, for example, a sensor is arranged on the rack 19 above the automatic detection station 13 of the rotary platform 22, the automatic welding device 29 is arranged on the rack 19 above the automatic welding station 32 of the rotary platform 22, and the automatic discharging device 24 is arranged on the rack 19 above the automatic discharging station 18 of the rotary platform 22. The positioning device 23 may also be referred to as a welding jig.

The automatic welding equipment for the handle body and the handle seat further comprises a cover 17, and if the rack 19 is divided into an upper part and a lower part, the cover 17 is fixed on the top of the lower part of the rack 19 and covers the upper part of the rack 19. A control panel 16 and buttons 14 are mounted on the housing 17. The lower portion of the housing 19 may also be referred to as the base portion.

The positioning device 23 comprises a groove 72 for embedding a large part of the handle body 4 horizontally, wherein the large part can be understood as a large part of the length, the groove 72 is used for accommodating the end of the big end 2 of the handle body 4 close to the center of the rotating platform 22, the part horizontally towards the small end 5 of the handle body 4 is suspended and the suspended part is positioned above the edge of the rotating platform 22, and the end of the groove 72 for accommodating the big end 2 of the handle body 4 is internally provided with a polygonal column 73 which is convex upwards and is used for being matched with the polygonal hole 10 of the handle seat 8. The recess 72 is formed to receive the first through hole 71 of the positioning device 23 on both sides of the bevel edge 6 of the handle body 4 for facilitating the insertion of the jaw 65 of the automatic discharging device 24 into the handle body to grasp the welded metal handle 26. The positioning device 23 may be a rectangular block horizontally fixed on the top surface of the rotary platform 22, and the width bisector of each rectangular block is on a diameter line of the rotary platform 22. The positioning device 23 may also have a plurality of counterbores 74, such as two screws, that are threaded through the counterbores 74 and then threadably engage the threaded bores of the rotary platform 22.

As shown in fig. 4, 5, 6, 7, 8, 9, 10, and 11.

The automatic welding unit 29 comprises two welding bugs 15 and two welding torches 33 arranged on a frame 19. The respective welding guns 33 are electrically connected to the respective welding machines 15 via wires 41, one ends of the respective ground wires 28 are electrically connected to the respective welding machines 15, and the other ends of the respective ground wires 28 are electrically connected to the positioning device 23 at the automatic welding station of the automatic welding apparatus via an intermittent connection structure.

The automatic welding device 29 further comprises a first lifting cylinder 30 fixed on the frame 19, a lifting support frame 39 is fixed at the free end of a first piston rod 44 of the first lifting cylinder 30, a press rod 40 for pressing the handle seat 8 of the metal handle 21 to be welded is fixed on the lifting support frame 39, and a buffer spring (not shown in the figure) can be arranged on the press rod 40. The lifting support frame 39 is also fixed with a servo motor 31, a rotary support frame 36 is fixed on a rotating shaft of the servo motor 31, two welding gun fixing frames 34 are fixed on the rotary support frame 36, and the upper parts of two welding guns 33 symmetrically positioned at two sides of the pressure lever 40 are fixed on the respective welding gun fixing frames 34. The bottom of the motor portion of the servo motor 31 may be provided with a decelerator. The welding gun 33, the ground wire 28 and the positioning device 23 intermittent connecting mechanism, the lifting cylinder 30 and the servo motor 31 are all electrically connected with the control system. That is, the on/off of the welding gun 33, the on/off of the ground wire 28, the on/off of the first lifting cylinder 30 and the on/off of the servo motor 31 are controlled by the control system. The servo motor 31 can be replaced by a stepping motor. For better guidance, two second guide rods 43 may be provided on one of the first lifting cylinder 30 and the lifting support frame 39, such as the lifting support frame 39, and two guide holes slidably fitted on the second guide rods 43 may be provided on the other one, such as the first lifting cylinder 30.

The specific structure of the intermittent electrical connection between one end of the ground wire 28 and the positioning device 23 is that the positioning device 23 is made of a metal material, that is, the positioning device 23 is made of a metal material, and the positioning device 23 is screwed into a threaded hole at the bottom of the positioning device 23 after a metal screw 76 with a metal round handle 75 passes through a through hole of the rotary platform 22 so as to be fixed and electrically connected with each other. The frame 19 under the metal round handle 75 is provided with an automatic ground wire on-off cylinder 27 which is electrically connected with the control system, namely the on-off of the ground wire is controlled by the control system, the free end of the second piston rod 42 of the automatic ground wire on-off cylinder 27 is fixedly connected with a metal contact block 20 which is electrically connected with one end of two ground wires 28, the automatic ground wire on-off cylinder 27 drives the second piston rod 42 to enable the metal contact block 20 to be clung to the metal round handle 75 during welding, the metal handle 21 to be welded is conducted with the ground wires 28 through a positioning device 23, and the automatic ground wire on-off cylinder 27 drives the second piston rod 42 to enable the metal contact block 20 to be separated from the metal round handle 75 after welding is completed without interfering the rotation of the rotary platform 22. The above expression can be said in an alternative way: the free end of the second piston rod 42 of the ground wire automatic on-off cylinder 27 is fixed with a metal contact block 20 which is connected with the other ends of the two ground wires 28 and is used for being tightly attached to the metal round handle 75 during welding to conduct the ground wires 28 or separating from the metal round handle 75 during welding stopping. During welding, the control system controls the ground wire automatic on-off cylinder 27 to drive the second piston rod 42 to enable the metal contact 20 and the metal round handle 75 to be tightly attached, the metal handle 21 to be welded is conducted with the ground wire 28 through the positioning device 23, and after welding is completed, the ground wire automatic on-off cylinder 27 drives the second piston rod 42 to enable the metal contact 20 and the metal round handle 75 to be separated without interfering the rotation of the rotary platform 22. The metal contact block 20 may also be referred to as a metal contact.

The rotatable support 36 includes a horizontal turntable 45 and two vertical plates 52 fixed to the horizontal turntable 45, wherein the two vertical plates 52 are fixed to the horizontal turntable 45 via a connecting block 51. The two vertical plates 52 are provided with an inner and outer position fine adjustment structure 37 and an upper and lower position fine adjustment structure 38 of the welding gun 33 and the welding gun fixing frame 34 relative to the vertical plates 52.

The inner and outer position fine adjustment structure 37 may be a manual fine adjustment structure: one side of each vertical plate 52 is fixed with one side of a first connecting plate 53, the other side of the first connecting plate 53 is connected with a horizontal sliding plate 55 in a sliding manner through a horizontal guide rail 60 and a horizontal guide groove 54, the top of the first connecting plate 53 is provided with a first nut 49 and a horizontal adjusting bolt 50 screwed in the first nut 49, the rear end of the horizontal adjusting bolt 50 is a first rotating handle 78 for screwing force application, and the front end of the horizontal adjusting bolt 50 is connected with a horizontal driving block 48 fixed at the top of the horizontal sliding plate 55 in a rotating manner and is axially limited.

The vertical position fine adjustment structure can be a manual fine adjustment structure, one side surface, away from the sliding surface, of each horizontal sliding plate 55 is fixed to one side surface of a second connecting plate 56, the other side surface of the second connecting plate 56 is in sliding connection with a vertical sliding plate 58 through a vertical guide rail 61 and a vertical guide groove 46, a second nut 57 and a vertical adjusting bolt 47 screwed in the second nut 57 are arranged on the outer side of the second connecting plate 56, the lower end of the vertical adjusting bolt 47 is a second rotating handle 79 for screwing force application, the upper end of the vertical adjusting bolt 47 is in rotating connection with a vertical driving block 59 fixed on the outer side of the vertical sliding plate 58 and axially limited, and the welding gun 33 is fixed on the outer side surface of the vertical sliding plate 58 through a welding gun fixing frame 34.

The adjusting bolt is rotationally connected with the driving block but axially limited, and the following specific structure can be adopted: a hemispherical shell with a center hole is welded on the driving block, the diameter of the adjusting bolt penetrating into the center hole of the hemispherical shell is larger than that of the center hole, the handle is rotated manually, the adjusting bolt drives the driving block to move in a reciprocating mode, and the front end of the bolt cannot be axially separated from the driving block. It will be understood that the adjusting bolts include a horizontal adjusting bolt 50 and a vertical adjusting bolt 47; the drive block includes a horizontal drive block 48 and a vertical drive block 59.

Of course, the adjusting bolt is rotatably connected with the driving block but axially limited, and another specific structure can be adopted, namely the front end of the adjusting bolt is abutted against the driving block, and a return spring such as a tension spring can be arranged between the driving block and the nut and can be reset by the return spring after screwing or unscrewing.

The guide rail can also be called a slide rail, and the guide groove can also be called a sliding groove. The cross section of the guide rail can be dovetail-shaped, the cross section of the guide groove can be dovetail-shaped groove matched with the dovetail-shaped block, for example, the edges of the two guide rails in sliding fit with the two side frames of the guide groove in fig. 10 and 11 are oblique edges which are mutually embedded, and the function of the oblique edges is that the two plates which slide relatively can only slide relatively and cannot be separated from each other.

When the control system controls the automatic welding device 29 to automatically weld, the first lifting cylinder 30 is controlled to descend to the welding horizontal height, the servo motor 31 is controlled to rotate to the welding horizontal position, the inner and outer position fine adjustment and/or the upper and lower position fine adjustment can be manually carried out when needed, the first lifting cylinder 30 is controlled to descend to the welding horizontal height, the pressing rod 40 presses the metal handle 21 to be welded, the ground wire automatic on-off cylinder 27 is controlled to be connected with the ground wire 28, the two welding guns 33 are controlled to weld for example spot welding at the same time, and the procedure is carried out when the first metal handle is welded for the first time. Generally, after the horizontal rotation position is adjusted, the inner and outer positions are finely adjusted, and the upper and lower positions are finely adjusted, the welding is started from the metal handle on the second positioning device, and only the welding needs to be descended to the horizontal height adjustment, and the horizontal rotation position is not required to be adjusted and finely adjusted. After the symmetric spot welding, the control system controls the first lifting cylinder 30 to ascend to the horizontal height when the welding is not performed, and then controls the index plate 25 and the rotary platform 22 to rotate to the next index position.

Of course, the inner and outer position fine adjustment structure described above may also be an automatic fine adjustment structure: one side of each vertical plate is fixed with one side of a first connecting plate, the other side of the first connecting plate is connected with a horizontal sliding plate in a sliding mode through a horizontal guide rail and a horizontal guide groove, a horizontal fine adjustment cylinder is arranged at the top of the first connecting plate, the free end of a piston rod of the horizontal fine adjustment cylinder is fixed with a horizontal driving block fixed at the top of the horizontal sliding plate, and the horizontal fine adjustment cylinder is electrically connected with a control system and is controlled to be opened and closed by the control system. After the structure is adopted, the fine adjustment structure of the inner position and the outer position is simple and reliable, the operation is convenient, the accurate positioning of the inner position and the outer position in the horizontal direction is further ensured, the welding quality is further ensured, and the automation degree of the automatic welding device is further improved.

Similarly, the above-mentioned upper and lower position fine adjustment structure may also be an automatic fine adjustment structure: one side of each horizontal sliding plate, which is far away from the sliding surface, is fixed with one side of a second connecting plate, the other side of the second connecting plate is in sliding connection with a vertical sliding plate through a vertical guide rail and a vertical guide groove, a vertical fine tuning cylinder is arranged outside the second connecting plate, the free end of a piston rod of the vertical fine tuning cylinder is fixed with a vertical driving block fixed outside the vertical sliding plate, a welding gun is fixed on the outer side surface of the vertical sliding plate through a welding gun fixing frame, and the vertical fine tuning cylinder is electrically connected with a control system, namely, the vertical fine tuning cylinder is controlled by the control system to be opened and closed. After the structure is adopted, the fine adjustment structure of the upper position and the lower position is simple and reliable, the operation is convenient, the accurate positioning of the vertical direction of the upper position and the lower position is further ensured, the welding quality is further ensured, and the automation degree of the automatic welding device is further improved.

The automatic discharging device 24 comprises an inner and outer moving mechanism which is arranged on the frame 19 and controlled by the control system, an up-down moving mechanism which is arranged on the inner and outer moving mechanism, and two clamping jaws 65 which are arranged on the up-down moving mechanism, wherein the two clamping jaws 65 are used for penetrating into two first through holes 71 of the positioning device 23 to grab out the welded metal handle 26, namely the handle body 4 of the welded metal handle.

The automatic discharging device 24 may have a specific structure that two mounting blocks 62 are fixed to the frame 19, two ends of two horizontal first guide rods 69 parallel to each other are fixed to the two mounting blocks 62, an inner and outer moving cylinder 70 is slidably fitted on the two first guide rods 69, a free end of a third piston rod 68 of the inner and outer moving cylinder 70 is fixed to the mounting block 62 at the outer end, and a third connecting plate 63 is fixed to the inner and outer moving cylinder 70. A second lifting cylinder 64 is fixed on the third connecting plate 63, and two clamping jaws 65 are arranged at the free end of a fourth piston rod 67 of the second lifting cylinder 64. For example, a finger cylinder 66 is fixed to the free end of the fourth piston rod 67 of the second lift cylinder 64 via a pair of flanges (not shown), and the free ends of the two piston rods of the finger cylinder 66 are fixed to the respective jaws 65. For better guidance, two third guide rods 35 may be provided on the second lift cylinder 64 and the pair of flanges, one of the third guide rods 35 being, for example, a flange, and the other of the second lift cylinder 64 being, for example, provided with two guide holes slidably fitted on the third guide rods 35.

When the handle body 4 of the metal handle is grabbed, the control system controls the inner and outer moving cylinders 70 to move to positions right above the two first through holes 71 of the positioning device 23, then controls the second lifting cylinder 64 to descend until the two clamping jaws 65 go deep into the two first through holes 71, then controls the finger cylinder 66 to hold or clamp the two inclined edges 6 of the handle body 4 of the welded metal handle 26, namely grabbing, the control system controls the second lifting cylinder 64 to lift, controls the inner and outer moving cylinders 70 to move outwards, controls the finger cylinder 66 to reversely release the two clamping jaws 65, and the welded metal handle 26 falls into a collection container of the welded metal handle 26 through the sliding chute by self weight. The metal knobs 75 described above may also be referred to as metal pucks.

The positioning device 23 is further provided with a sensor (not shown) to detect whether there is a metal handle 21 to be welded or an automatic detection station 13 of a handle body and a handle seat to be welded on the positioning device 23. The manual feeding station 12, the automatic detection station 13, the automatic welding station 32 and the automatic discharging station 18 are arranged in a clockwise sequence and are uniformly arranged along the circumference of the rotary platform 22. The sensor detects whether the metal handle 21 to be welded exists in the positioning device 23 to be transferred to the automatic welding station 32 in advance, and feeds an electric signal back to the control system, if so, the control system controls the metal handle on the automatic welding station 32 to enter an automatic welding program, and if not, the control system continues to rotate the dividing disc 25 and the rotary platform 22.

The number of the positioning devices 23 of the handle bodies 4 and the handle holders 8 arranged along the circumference of the rotary platform 22 may be 8 that are uniformly arranged along the circumference. Among the 8 positioning devices 23, a manual feeding station 12, an automatic detection station 13, an automatic welding station 32, and an automatic discharging station 18 may be disposed at intervals, and if the foremost positioning device 23 shown in fig. 3 is set as the first positioning device, the first positioning device is the manual feeding station 12, the third positioning device is the automatic detection station 13, the fifth positioning device is the automatic welding station 32 (see fig. 6), and the seventh positioning device is the automatic discharging station 18. The positioning device 23 is provided with four stations, it being understood that the positioning device 23 is provided at the location of these four stations on the rotary platform 22. The four stations are arranged uniformly along the circumference, i.e. the rotary platform 22 is divided into four equal parts along the circle center, the four stations are respectively positioned on a bisector, and the bisectors of adjacent stations are mutually 90 degrees.

A baffle 77 for preventing flame flicker from damaging the eyes of a feeding operator in the welding process is arranged on the frame 19 between the automatic welding station 32 and the manual feeding station 12. The setting of baffle has effectively protected operation workman's eyes not by the injury, and the spark produces the interference to operation workman when preventing the welding to guarantee operation workman safety work.

The finger cylinder 66 is also called a gripping finger cylinder or a double-piston bidirectional cylinder. The jaws 65 may also be referred to as fingers. The above-mentioned fixing is welding or screwing by using screw or bolt, etc. The control system controls the opening and closing of the cylinders, and controls the opening and closing of the electromagnetic valve of each cylinder.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a handle body and handle seat's automatic weld equipment, includes control system, frame, is connected and fixes the graduated disk in the frame with control system electricity, the rotary platform who connects with the graduated disk is concentric, its characterized in that: the automatic welding device comprises a rotating platform, a plurality of positioning devices, an automatic welding device and an automatic discharging device, wherein the rotating platform is provided with a plurality of handle bodies and handle seats which are arranged along the circumference, the plurality of positioning devices at least correspond to a manual feeding station for manually placing the handle bodies and the handle seats, an automatic welding station for automatically welding symmetrical points of joints of the handle bodies and the handle seats by adopting double welding guns of the automatic welding device, and an automatic discharging station for grabbing welded metal handles by adopting the automatic discharging device.

2. The automatic handle body and handle seat welding apparatus of claim 1, wherein: the positioning device comprises a groove for embedding most of the horizontal handle body, the groove is used for accommodating the large head end of the handle body to be close to the center of the rotary platform, the part of the horizontal handle body facing to the small head end is suspended, the suspended part is positioned above the edge of the rotary platform, and a polygonal column which is convex upwards and is used for being matched with the polygonal hole of the handle seat is arranged in one end of the large head end of the groove accommodating handle body; the positioning devices at two sides of the two bevel edges of the groove containing handle body are provided with first through holes which are convenient for the clamping jaws of the automatic discharging device to go deep to grab the welded handle body of the metal handle.

3. The automatic handle body and handle seat welding apparatus of claim 1, wherein: the automatic welding device comprises two electric welding machines and two welding guns, wherein the respective welding guns are electrically connected with the respective electric welding machines through leads, one ends of respective ground wires are electrically connected with the respective electric welding machines, and the other ends of the respective ground wires are electrically connected with the positioning device at the automatic welding station through an intermittent connection structure; the welding device is characterized by further comprising a first lifting cylinder fixed on the rack, a lifting support frame is fixed at the free end of a first piston rod of the first lifting cylinder, a pressure rod used for pressing a handle seat of a metal handle to be welded is fixed on the lifting support frame, a servo motor is further fixed on the lifting support frame, a rotatable support frame is fixed on a rotating shaft of the servo motor, two welding gun fixing frames are fixed on the rotatable support frame, and the upper parts of two welding guns symmetrically positioned on the two sides of the pressure rod are fixed on the respective welding gun fixing frames; and the welding gun, the ground wire and positioning device intermittent connecting structure, the lifting cylinder and the servo motor are all electrically connected with the control system.

4. The automatic handle body and handle holder welding apparatus of claim 3, wherein: the other end of the ground wire is intermittently and electrically connected with a positioning device, the positioning device is made of metal materials, and a metal screw with a metal round handle penetrates through a through hole of the rotating platform and then is screwed in a threaded hole at the bottom of the positioning device; and a ground wire automatic on-off cylinder electrically connected with the control system is arranged on the machine frame below the metal round handle, and a metal contact block which is connected with the other ends of the two ground wires and used for being tightly attached to the metal round handle during welding to conduct the ground wire or be separated from the metal round handle during welding stop is fixed on the free end of a second piston rod of the ground wire automatic on-off cylinder.

5. The automatic handle body and handle holder welding apparatus of claim 4, wherein: the rotatable support frame comprises a horizontal rotary table and two vertical plates fixed with the horizontal rotary table, and the two vertical plates are provided with a welding gun and an inner and outer position fine adjustment structure and an upper and lower position fine adjustment structure of the welding gun fixing frame relative to the vertical plates.

6. The automatic handle body and handle holder welding apparatus of claim 5, wherein: the inner and outer position fine adjustment structure is a manual fine adjustment structure: one side surface of each vertical plate is fixed with one side surface of a first connecting plate, the other side surface of the first connecting plate is in sliding connection with a horizontal sliding plate through a horizontal guide rail and a horizontal guide groove, a first nut and a horizontal adjusting bolt screwed in the first nut are arranged at the top of the first connecting plate, the rear end of the horizontal adjusting bolt is a first rotating handle for screwing force application, and the front end of the horizontal adjusting bolt is in rotating connection with a horizontal driving block fixed at the top of the horizontal sliding plate and is axially limited; the upper and lower position fine setting structure be manual fine setting structure, every level is kept away from a side of glide plane and a side of second connecting plate to the slide and is fixed, another side and a perpendicular slide of second connecting plate are through perpendicular to guide rail and perpendicular to guide slot sliding connection, the outside of second connecting plate have a second nut and close the perpendicular adjusting bolt that is in the second nut soon, perpendicular to adjusting bolt's lower extreme for close the second twist grip that the application of force was used soon, perpendicular to adjusting bolt's upper end with fix perpendicular to the drive block rotation connection and axial spacing in the outside perpendicular to the slide, welder is fixed on the lateral surface of perpendicular to the slide through the welder mount.

7. The automatic handle body and handle holder welding apparatus of claim 2, wherein: the automatic discharging device comprises an inner and outer moving mechanism arranged on the frame and electrically connected with the control system, an up-down moving mechanism arranged on the inner and outer moving mechanism and two clamping jaws arranged on the up-down moving mechanism, wherein the two clamping jaws are used for penetrating into two first through holes of the positioning device so as to grab out a handle body of a welded metal handle.

8. The automatic handle body and handle holder welding apparatus of claim 7, wherein: the automatic discharging device is structurally characterized in that two mounting blocks are fixed with a rack, two ends of two horizontal first guide rods which are parallel up and down are fixed with the two mounting blocks, an internal and external moving cylinder is matched on the two first guide rods in a sliding manner, the free end of a third piston rod of the internal and external moving cylinder is fixed with the mounting block at the outer end, and a third connecting plate is fixed on the internal and external moving cylinder; a second lifting cylinder is fixed on the third connecting plate, and the free end of a fourth piston rod of the second lifting cylinder is connected with two clamping jaws.

9. The automatic handle body and handle holder welding apparatus of claim 8, wherein: a finger cylinder is fixed at the free end of the fourth piston rod of the second lifting cylinder, and the free ends of the two piston rods of the finger cylinder are fixed with the respective clamping jaws.

10. The automatic welding equipment of handle body and handle seat according to claim 1, characterized in that: the positioning device is also correspondingly provided with a sensor for detecting the automatic detection station of whether the metal handle to be welded is arranged on the positioning device, and the manual feeding station, the automatic detection station, the automatic welding station and the automatic discharging station are uniformly arranged along the circumference of the rotary platform in a clockwise sequence.

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