CN111301955A - Rotary conveying device - Google Patents

Abstract

The invention belongs to the technical field of automatic material conveying, and relates to a rotary conveying device which comprises a circulating track, a transfer die holder, a tooling die holder, a first shifting device and a second shifting device, wherein the circulating track comprises a first section, a second section and a third section which are sequentially connected, the transfer die holder is arranged on the tracks of the two lower sections, the transfer die holder can reciprocate along the lower sections, the transfer die holder is provided with a transfer rail connected with the tracks of the higher sections, the lower side of the die holder is provided with a slide way matched with the tracks of the higher sections and the transfer rail, the first shifting device is arranged on the lower sections and can drive the transfer die holder to move towards the lower section along the tracks of the sections, so that the transfer rail is connected with the tracks of the next higher sections, the second shifting device is arranged on the side part of the tracks of the higher sections and is provided with an attachment device for coupling the tooling die holder, and the tooling die holder can be controlled to move and stop on the sections through the first shifting device and, the connection of the tool die holder with the feeding process, the middle process and the blanking process is realized.

Description

Rotary conveying device

Technical Field

The invention belongs to the technical field of automatic material conveying, and particularly relates to a rotary conveying device.

Background

In order to improve the production efficiency, it is desirable to realize automatic production, in some cases, such as the case where a plurality of processes need to be completed on the same tool, and in the process of pre-positioning an add-on to a workpiece, for example, in the process of processing hardware containers and kitchen ware, several hardware parts are generally required to be positioned together and then subjected to the next process, such a processing object relates to the workpiece and the add-on, the add-on needs to be placed at a certain position of the workpiece during processing, and then pre-fixed by a corresponding process, such as spot welding, and then subjected to the subsequent processes, such as stamping.

In the prior art, different processes need to be realized by dividing a plurality of conveying lines for realizing automatic production, each conveying line needs to be provided with similar tools, and a plurality of mechanical hands are needed to transfer workpieces or additional parts to corresponding stations, so that the cost is very high, and an economical scheme capable of realizing automation needs to be designed.

Disclosure of Invention

The invention aims to solve the problem of automatic feeding of multiple processes on the same tool and provide an economical and feasible rotary conveying device.

In order to solve the technical problems, the invention adopts the following technical scheme:

a rotary conveying device comprises a circulating track, a transfer die holder, a tooling die holder, a first shifting device and a second shifting device.

The circulating track comprises a first section, a second section, a third section and a fourth section which are sequentially connected, and the tracks of the 4 sections are alternately arranged in height.

The transfer die holder is arranged on the tracks of the two low sections and can reciprocate along the tracks of the corresponding low sections, and transfer rails connected with the tracks of the high sections are arranged on the transfer die holder.

The lower side of the tooling die holder is provided with a slideway matched with the track and the transfer rail of the high-position section.

The first shifting device is arranged between the transfer die holder and the low section where the transfer die holder is located, and the first shifting device can drive the transfer die holder to move towards the direction of the next section along the track of the section where the first shifting device is located, so that the transfer rail is connected with the track of the next high section.

The second shifting device is arranged on the side part of the high-position section track, an attachment device for coupling the tooling die holder is arranged on the second shifting device, the second shifting device can drive the coupled tooling die holder to move towards the next section along the track of the section where the second shifting device is located, so that the tooling die holder on the transfer die holder is transferred to the next high-position section, the tooling die holder on the high-position section is transferred to the transfer die holder of the next low-position section, and the circular movement of the tooling die holder is realized.

The first shifting device and the second shifting device can control the tooling die holder to move and stop on the 4 sections so as to realize the connection of the tooling die holder with the feeding process, the middle process and the blanking process.

Compared with the prior art, the tooling die holder transfer mechanism adopts the circulating tracks with alternately arranged tracks, the tooling die holders of two adjacent sections are transferred by the transfer die holders, the movement and the stop of the tooling die holders on the 4 sections can be controlled by controlling the working states of the first and second shifting devices, so that the tooling die holders are connected with the feeding process, the middle process and the blanking process, the feeding and blanking operation of workpieces in each middle process is reduced, the tooling die holders are repeatedly utilized on one circulating track, the multiple processes are completed, the use of conveying lines, tooling and manipulators is effectively reduced, the occupied space is reduced, and the implementation scheme is economical and feasible and has high efficiency.

Preferably, the first section and the third section are low section tracks, and the second section and the fourth section are high section tracks.

Preferably, the corner of the first section end and the fourth section end is defined as a first corner engagement position, the corner of the first section end and the second section end is defined as a second corner engagement position, the corner of the second section end and the third section end is defined as a third corner engagement position, and the corner of the third section end and the fourth section end is defined as a fourth corner engagement position.

The second section comprises at least two process rest positions for connecting the second corner connecting position and the third corner connecting position, each process rest position corresponds to a corresponding intermediate process, the second shifting device on the second section is attached to and transfers the tooling die holder on the first section, so that the tooling die holder is sequentially transferred from the second corner connecting position to each process rest position and the third corner connecting position, transferred from the first shifting device on the third section to the fourth corner connecting position, and transferred from the second shifting device on the fourth section to the first corner connecting position. Generally, the first corner joint position is a feeding station and is used for being jointed with a feeding mechanism, the second corner joint position and the at least two process rest positions are intermediate stations and can meet the joint of at least 3 intermediate processes, and the fourth corner joint position is a discharging station and is used for being jointed with a discharging mechanism.

Preferably, the second corner connecting position, the process stop position and the third corner connecting position are arranged at equal intervals, the second section is distributed with tool die holders corresponding to the process stop position, the third section, the fourth section and the first section are distributed with 2 tool die holders, and the tool die holders are periodically switched on the circulating track.

And the second shifting device on the second section is provided with 1 more attaching devices corresponding to the rest positions of each working procedure, and the attaching devices periodically transfer the second corner connecting positions and the tooling die holders on the rest positions of each working procedure to the next working position in sequence. The mode can synchronously and sequentially transfer the tooling die holder to the direction of the next station, and compared with the mode that the tooling die holders are respectively fixed on the corresponding stations and the workpieces and the additional parts are respectively transferred to the die holders, the mode omits the alignment operation between the workpieces and the die holders, simplifies the structure of the conveying mechanism and is beneficial to reducing the cost.

As a specific embodiment, the number of the process rest positions is 2, the process rest positions comprise a first process rest position and a second process rest position, the second corner connecting position, the first process rest position, the second process rest position and the third corner connecting position form 4 equidistant stations, 2 tooling die holders on the second section are distributed, the second section is provided with 3 attaching devices corresponding to the 2 process rest positions, and the 3 attaching devices periodically transfer the tooling die holders on the second corner connecting position, the first process rest position and the second process rest position to the next station in sequence.

Preferably, the second displacement device comprises a second transmission rack, a second transmission gear, a second motor and a cross rod, the second transmission rack and the cross rod are arranged along the second section and the fourth section, the second transmission gear is meshed with the corresponding second transmission rack, the output end of the second motor is connected with the corresponding second transmission gear, the cross rod is fixedly connected with the second motor, the attachment device comprises an air cylinder, the air cylinder is installed on the cross rod, a pin rod is installed at the output end of the air cylinder, a small hole is formed in the tooling die holder corresponding to the pin rod, and the pin rod is inserted into the corresponding pin hole to couple the attachment device with the tooling die holder. The second shifting device is simple in structure, accurate and reliable in transmission, and the pin rod is driven to stretch by the aid of the air cylinder, so that the pin rod and the pin hole are matched and disassembled, and the second shifting device is high in reaction speed.

Preferably, the second section is provided with a limiting device corresponding to each process stop position, and the limiting device limits the tool die holder when the tool die holder reaches the corresponding process stop position and releases the limiting until the next transfer. The limiting device is arranged to prevent the tool die holder from moving on the way when the corresponding working procedure is carried out, so that the working procedure is not influenced.

Preferably, stop device includes spacing cylinder, install the spacer pin on spacing cylinder's the push rod, correspond on the frock die holder the spacer pin is equipped with spacing portion, and when the frock die holder reachd corresponding process outage position, spacing cylinder pushed the spacer pin spacing portion into and carries out spacing locking to the frock die holder, and when shifting next time, spacing cylinder orders about the spacer pin and withdraws from spacing portion and realizes the unblock. The limiting device is simple in arrangement mode and structure, high in reaction speed and capable of rapidly acting when receiving locking and unlocking instructions.

Preferably, the first shifting device comprises a first transmission rack, a first transmission gear and a first motor, the first transmission rack is arranged along a first section and a third section, the first transmission gear is meshed with the first transmission rack, the first motor is fixedly connected with the shifting die holder, the output end of the first motor is connected with the first transmission gear, and the first shifting device is simple in structure and accurate and reliable in transmission.

Preferably, the transfer die holder is provided with a positioning device, the positioning device comprises a positioning cylinder, a positioning pin is installed on a push rod of the positioning cylinder, the tool die holder corresponds to the positioning pin, the positioning cylinder pushes the positioning pin into the positioning part to position and lock the tool die holder when the tool die holder is installed on the transfer die holder, and the positioning cylinder orders the positioning pin to withdraw from the positioning part to unlock the tool die holder when the tool die holder is transferred to a next section.

Drawings

FIG. 1 is a schematic view of a rotary conveyor;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the rotary transport device (with the tooling die holder removed);

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of a second displacement device;

FIG. 6 is a schematic view of a transfer die holder;

FIG. 7 is a schematic view of a transfer die holder and a first displacement device;

FIG. 8 is a schematic view of a transfer die holder;

FIG. 9 is a schematic view of the tooling die holder (with the housing removed);

FIG. 10 is a schematic view of a tooling die holder;

FIG. 11 is a schematic view of a spot welder;

FIG. 12 is a schematic view of a spot welder;

fig. 13 is a stainless steel bottom-beating pot production line to which the rotary conveying device of the present invention is applied.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1 to 7, the present embodiment provides a rotary conveying device, including a circulating track L, a transferring mold seat T, a tooling mold seat W, a first shifting device N, and a second shifting device M, where the circulating track L includes a first section L1, a second section L2, a third section L3, and a fourth section L4, the tracks of the above 4 sections are alternately arranged in high and low directions, in a specific embodiment, the first section L1 and the third section L3 are low-position section (L1, L3) tracks, and the second section L2 and the fourth section L4 are high-position section (L2, L4) tracks.

Referring to fig. 1 to 4, 6, 9 and 10, two transfer die holders T are provided for loading the tooling die holders W, the transfer die holders T are respectively mounted on the rails of two low-position sections (L1, L3), the transfer die holders T can reciprocate along the rails of the corresponding low-position sections (L1, L3), a transfer rail T0 engaged with the rails of the high-position sections (L2, L4) is provided thereon, a slide way W01 engaged with the rails of the high-position sections (L2, L4) and the transfer rail T0 is provided on the lower side of the tooling die holder W, and a first displacement device N is provided between the transfer die holder T and the low-position sections (L1, L3) where the transfer die holder T is located, the first displacement device N can drive the transfer die holder T to move along the direction of the next low-position section (L2, L4) along the rails of the located section, so that the transfer rail T0 is engaged with the rails of the next high-position section (L2, L3535).

Referring to fig. 1 to 5, the second shifting device M is disposed at a side of the track of the high-level section (L2, L4), and is provided with an attachment device F for coupling the tooling die holder W, and the second shifting device M can drive the coupled tooling die holder W to move toward the next section along the track of the section, so that the tooling die holder W on the transfer die holder T is transferred to the next high-level section (L2, L4), and the tooling die holder W on the high-level section (L2, L4) is transferred to the transfer die holder T on the next low-level section (L1, L3), thereby realizing the circular movement of the tooling die holder W.

The first shifting device N and the second shifting device M can control the tooling die holder W to move and stop on the 4 sections so as to realize the connection of the tooling die holder W with the feeding process, the middle process and the blanking process.

Compared with the prior art, the tooling die holder W is connected with the tooling die holders W of two adjacent sections for transfer by the transfer die holders T through the circulating rails L which are alternately arranged in the height direction of the rails, the movement and the stoppage of the tooling die holders W on the 4 sections can be controlled by controlling the working states of the first and second shifting devices M, namely, stations corresponding to corresponding processes are preset on the circulating rails L, and the corresponding processes can be carried out after the tooling die holders W are driven to reach the corresponding stations, so that the connection of the tooling die holders W with the loading process, the middle process and the unloading process is realized, the loading and unloading operation of workpieces in each middle process is reduced, the repeated utilization of the tooling die holders W on one circulating rail L is realized, multiple processes are completed, the use of conveying lines, tooling and mechanical hands is effectively reduced, the occupied space is reduced, and the implementation scheme is economical, feasible and high in efficiency.

Referring to fig. 2 and 4, the corner between the head end of the first section L1 and the tail end of the fourth section L4 is defined as a first corner engagement position S1, the corner between the tail end of the first section L1 and the head end of the second section L2 is defined as a second corner engagement position S2, the corner between the tail end of the second section L2 and the head end of the third section L3 is defined as a third corner engagement position S3, and the corner between the tail end of the third section L3 and the head end of the fourth section L4 is defined as a fourth corner engagement position S4.

Referring to fig. 1 to 4, the second section L2 includes at least two process rest positions for engaging the second corner engagement position S2 and the third corner engagement position S3, each process rest position corresponds to a corresponding intermediate process, the second shifting device M on the second section L2 is attached to and shifts the tooling die holder W on the first section L1, so that the tooling die holder W is sequentially shifted from the second corner engagement position S2 to each process rest position and the third corner engagement position S3, and is shifted from the first shifting device N on the third section L3 to the fourth corner engagement position S4, and then is shifted to the first corner engagement position S1 by the second shifting device M on the fourth section L4. Generally, the first corner connecting position S1 is a feeding station for connecting with a feeding mechanism, the second corner connecting position S2 and the at least two process rest positions are intermediate stations capable of meeting the connection of at least 3 intermediate processes, and the fourth corner connecting position S4 is a discharging station for connecting with a discharging mechanism.

Referring to fig. 2 and 4, in a preferred embodiment, the second corner engagement position S2, the process rest position and the third corner engagement position S3 are equidistantly arranged, the second section L2 is allocated with the tooling die holders W corresponding to the number of the process rest positions, and the third section L3, the fourth section L4 and the first section L1 are allocated with 2 tooling die holders W together, and the tooling die holders W are periodically switched on the circulating track L.

Referring to fig. 2, the second displacement device M on the second section L2 is provided with 1 more attachment devices F corresponding to the process rest positions, and the attachment devices F periodically transfer the second corner engagement position S2 and the tooling die holder W on each process rest position to the next work position in sequence. The mode can synchronously and sequentially transfer the tooling die holder W to the direction of the next station, and compared with the mode that the tooling die holders are respectively fixed on the corresponding stations and the workpiece and the additional part are respectively transferred to the die holders, the mode omits the alignment operation between the workpiece and the die holders, simplifies the structure of the conveying mechanism and is beneficial to reducing the cost.

Referring to fig. 1 to 4, as a specific embodiment, there are 2 process rest positions, including the first process rest position S5 and the second process rest position S6, the second corner engagement position S2, the first process rest position S5, the second process rest position S6 and the third corner engagement position S3 constitute 4 equidistant stations, 2 tooling die holders W on the second section L2 are allocated, the second section L2 is provided with 3 attaching devices F corresponding to the 2 process rest positions, and the 3 attaching devices F periodically transfer the tooling die holders W on the second corner engagement position S2, the first process rest position S5 and the second process rest position S6 to the next station in sequence.

Referring to fig. 1, 3, 6 and 7, in a preferred embodiment, the first shifting device N includes a first transmission rack N1, a first transmission gear N2 and a first electric motor N3, the first transmission rack N1 is arranged along a first section L1 and a third section L3, a first transmission gear N2 is engaged with the first transmission rack N1, the first electric motor N3 is fixedly connected with the transfer die holder T, and the output end of the first electric motor N3 is connected with a first transmission gear N2, and the first shifting device N has a simple structure and accurate and reliable transmission.

Referring to fig. 3, 6, 8 and 10, in a preferred embodiment, a positioning device D is arranged on the transfer die holder T, the positioning device D includes a positioning cylinder D1, a push rod of the positioning cylinder D1 is provided with a positioning pin D2, a positioning portion W02 is arranged on the tooling die holder W corresponding to the positioning pin D2, when the tooling die holder W is mounted on the transfer die holder T, the positioning cylinder D1 pushes the positioning pin D2 into the positioning portion W02 to position and lock the tooling die holder W, and when the transfer is performed to the next section, the positioning cylinder D1 drives the positioning pin D2 to exit from the positioning portion W02 to unlock.

Referring to fig. 1, 9 and 10, the tooling die holder W includes a tooling base W03 and a plurality of movable clamp holders W04, the tooling base W03 is provided with a die W05 for mounting a workpiece in the middle, the plurality of movable clamp holders W04 are circumferentially provided on the tooling base W03 around a die W05, the movable clamp holders W04 can be clamped or released relatively, the tooling base W03 is provided with a first guide groove W06 and a first guide rail W07 respectively corresponding to each movable clamp holder W04, the movable clamp holder W04 is connected with a first guide slider W08 corresponding to the first guide rail W07, a first guide column W09 corresponding to the first guide groove W06 is provided, the first guide slider W08 is slidably engaged with a corresponding first guide rail W07, the first guide column W09 extends to the lower side of the tooling base W06 through the corresponding first guide groove W06, and the movable clamp holders W06 can be pushed to release the outer side edge of each movable clamp holder W06, pushing the first guide post W09 toward the middle of the tool base W03 causes the movable clamp holder W04 to clamp relatively.

Referring to fig. 1, 9 and 10, the middle of the tool base W03 is provided with a first pin W10 corresponding to each movable clamp W04, each movable clamp W04 is provided with a second pin W11, the first pin W10 is connected with the second pin W11 through an elastic member W12, the elastic member W12 is preferably a tension spring, and the elastic member W12 drives the corresponding movable clamp W04 to move towards the middle of the tool base W03 through the first pin W10, so that the movable clamp W04 is clamped by itself when not being subjected to an outward acting force, a reset function is realized, a power mechanism for realizing the reset function of the movable clamp W04 is saved, and the production cost is reduced.

Referring to fig. 9, the movable clamp holder W04 includes a holder body W13 connected to the first guide slider W08 and a pulley W14 disposed at the upper end of the holder body W13 on a side close to the die W05, the pulley W14 is in rolling contact with the outer surface of the workpiece, and the pulley W14 can ensure that the outer surface of the workpiece is not scratched when the workpiece and the movable clamp holder W04 move up and down relatively, thereby achieving a protective effect.

Referring to fig. 9, the device further comprises a clamp W15 arranged at the upper end of each movable clamping seat W04, wherein the clamp W15 is positioned at the upper side of the die W05 and is used for clamping additional pieces on the upper end surface of a workpiece, such as a wrapping sheet and an aluminum sheet when a pot body of a composite pot bottom is manufactured, and a clamp driving cylinder 387w 2 is also arranged on each movable clamping seat W04 and drives the clamp W15 to clamp or release relatively.

Referring to fig. 1 and 9, the tooling die holder W further includes a housing W17 covering the upper side of the tooling base W03.

Referring to fig. 6 to 9, the transfer die holder T includes a transfer base T01 and a die holder driving mechanism for driving the movable die holder W04, the transfer base T01 is circumferentially provided with a plurality of second guide grooves T02 and a plurality of second guide rails T03 arranged along the movable direction of the movable die holder W04 corresponding to the movable die holder W04, the die holder driving mechanism includes a movable push block T04 and a driving device T08 arranged on each second guide rail T03, the movable push block T04 is slidably engaged with the second guide rail T03 by a second guide slider T05, and includes a push portion T06 arranged on one side of the first guide column W09 close to the die W05, and a driving rod T01 arranged on the lower side of the push portion T06 and extending to the lower side of the transfer base T01 through a second guide groove T02, the driving device T01 is arranged on the lower side of the transfer base T01, and includes a movable disk T01, a second guide post T01, a plurality of connecting rods T01, a plurality of driving connecting rods 01 and a plurality of driving connecting rods 01, the second guide post T10 is vertically disposed at the lower side of the transfer base T01, the movable tray T09 is disposed on the second guide post T10 in a vertically movable manner, the plurality of connecting seats T12 are circumferentially disposed at the middle of the movable tray T09, the upper end of each connecting rod T13 is hinged to a corresponding one of the driving rods T07, the lower end is hinged to a corresponding one of the connecting seats T12, the push block driving cylinder T11 is fixedly disposed at the lower side of the movable tray T09, the push rod thereof is connected to the movable tray T09 to drive the movable tray T09 to move along the second guide post T10, so as to drive the plurality of connecting rods T13 to open or close, when the connecting rods T13 are opened, the movable push block T04 pushes the first guide post W09 in a direction away from the mold W05 to open the movable clamp holder W04, the movable push block T04 is controlled by the driving device T08 to move to open or close the movable clamp holder W09, so as to realize a simple structure of opening or closing the movable clamp holder W04, the control method is easy to realize, the connecting rod is adopted to drive the moving block to move away, and the moving push blocks T04 can be synchronously driven by only one air cylinder.

Referring to fig. 1 to 10, when a workpiece is loaded, the transfer die holder T moves to the first corner connecting position S1, the push block driving cylinder T11 drives the movable clamp holder W04 to release for loading the workpiece, after the workpiece is loaded, the driving cylinder stops operating, the elastic member W12 drives the first guide pillar W09 to push the movable push block T04 inward to drive the movable disk T09 to press and retract the push rod of the push block driving cylinder T11 downward, so that the movable clamp holder W04 is closed to clamp the workpiece, similarly, when the workpiece is unloaded, the transfer die holder T moves to the fourth corner connecting position S4, the driving cylinder drives the movable clamp holder W04 to release for unloading the workpiece, the arrangement mode of the transfer die holder T is combined with the arrangement mode of the circulation track L, the clamp holder driving mechanism is reasonably arranged thereon to connect the loading and unloading mechanisms of the rotary conveying device, and the rotary conveying device is suitable for various production lines, and has strong practicability, the efficiency is high.

Referring to fig. 9 and 10, in a preferred embodiment, the first guide grooves W06 are oppositely disposed, the first guide rail W07 is disposed between the first guide grooves W06, and two first guide posts W09 of each movable clamping seat W04 are correspondingly disposed; referring to fig. 6 and 8, two second guide grooves T02 are oppositely disposed, the second guide rail T03 is disposed between the second guide grooves T02, two driving rods T07 of each movable pushing block T04 are correspondingly disposed, the upper end of each connecting rod T13 is disposed between two driving rods T07 of the corresponding movable pushing block T04 and hinged to the two driving rods T07, and the arrangement can improve the smoothness and stability of the movement of the movable clamp holder W04 and the movable pushing block T04 and prevent the movable clamp holder from shaking.

Referring to fig. 1 to 5, 9 and 10, in a preferred embodiment, the second displacement device M includes a second transmission rack M01, a second transmission gear M02, a second motor M03 and a cross bar M04, the second transmission rack M01 and the cross bar M04 are arranged along a second section L2 and a fourth section L4, the second transmission gear M02 is engaged with a corresponding second transmission rack M01, an output end of the second motor M03 is connected with a corresponding second transmission gear M02, the cross bar M04 is fixedly connected with the second motor M03, the attachment device F includes an attachment cylinder F01, the attachment cylinder F01 is mounted on the cross bar M04 at intervals, an output end of the attachment cylinder F01 is mounted with a pin F02, a corresponding pin F02 on the tool die holder W is provided with a pin hole W18, and the pin F02 is inserted into a corresponding pin hole W18 to couple the attachment device F with the tool die holder W. The second displacement device M is simple in structure, accurate and reliable in transmission, the pin rod F02 is driven to stretch by the aid of the attaching air cylinder F01, and therefore the pin rod F02 is matched with and detached from the pin hole W18, and the reaction speed is high.

Referring to fig. 3 and 4, in a preferred embodiment, the second section L2 is provided with a limiting device C for each process rest position, and the limiting device C limits the tool die holder W when the tool die holder W reaches the corresponding process rest position and releases the limiting when the tool die holder W is transferred next time. The limiting device C is arranged to prevent the tooling die holder W from moving on the way when the corresponding working procedure is carried out and influencing the working procedure.

Referring to fig. 3, 4 and 10, the limiting device C comprises a limiting cylinder C01, a limiting pin C02 is mounted on a push rod of the limiting cylinder C01, when the tooling die holder W reaches a corresponding process rest position, the limiting cylinder C01 pushes the limiting pin C02 into a limiting part W20 to limit and lock the tooling die holder W, and when the tooling die holder W is transferred next time, the limiting cylinder C01 drives the limiting pin C02 to exit from the limiting part W20 to realize unlocking. The limiting device C is simple in arrangement mode and structure, high in reaction speed and capable of rapidly acting when receiving locking and unlocking instructions. In a preferred embodiment, the positioning portion W02 is the stopper portion W20.

Referring to fig. 1 to 13, as a specific embodiment, the rotary conveying device is used for producing stainless steel bottoming pots, a first corner connecting position S1 is connected with a pot body feeding mechanism S7, a second corner connecting position S2 is connected with an aluminum sheet feeding mechanism S13, a first procedure stopping position S5 is connected with a bottom sheet feeding mechanism S14, a second procedure stopping position S6 is connected with a spot welding machine H, and a fourth corner connecting position S4 is connected with a blanking mechanism S8.

Referring to fig. 4, 11 and 12, the rail of the second section L2 corresponding to the second process rest position S6 is designed as a split rail L21, the split rail L21 is mounted on a vertical lifting device Z, when the tooling die holder W reaches the second process rest position S6, the split rail L21 can move downwards relative to the lower electrode H2 of the spot welder H through the vertical lifting device Z, so that the workpiece on the tooling die holder W moves downwards to contact with the lower electrode H2 of the spot welder H to realize spot welding, and after the spot welding is completed, the split rail L21 moves upwards relative to the lower electrode H2 of the spot welder H through the vertical lifting device Z to be combined with the second section L2.

Referring to fig. 9, 11 and 12, specifically, the spot welder H includes a main machine H3, an upper electrode H1 and a lower electrode H2, the upper electrode H1 is driven by a welding driving device H4 to move up and down, the die W05 is mounted on a tooling base W03 through a vertically arranged middle through pipe W21, a through hole W22 communicated with a middle through pipe W21 is formed in the middle of the die W05, a workpiece opening is sleeved on the die W05 downward, the lower electrode H2 is arranged on the lower side of the tooling die holder W and is coaxial with the middle through pipe W21, and a vertical lifting device Z drives a split rail L21 to move down together with the tooling die holder W21 and the workpiece, so that the top end of the lower electrode H2 enters the middle through pipe W21 and contacts with the upper top surface of the workpiece through the die W05. The spot welding machine H is compact in structure in the arrangement mode, the track of the second section L2 corresponding to the second procedure rest position S6 is designed to be a split track L21 capable of moving up and down, so that the workpiece is driven to move up and down relative to the lower electrode H2, spot welding is achieved, the circulating track L in the arrangement mode is better connected and matched with the spot welding machine H, and the structure of the spot welding machine H is simplified.

Referring to fig. 9, 11 and 12, specifically, the vertical lifting device Z includes a connecting arm Z1, and a vertical lifting assembly Z2 for driving the connecting arm Z1 to move up and down, the connecting arm Z1 is fixedly connected to the split rail L21, the vertical lifting assembly Z2 may be an existing lead screw driving mechanism, and includes a motor, a lead screw, and a nut seat, the nut seat is in threaded connection with the lead screw, the motor lead screw rotates to drive the nut seat to move up and down, a sliding seat is connected to the nut seat, and the connecting arm Z1 is fixedly connected to the sliding seat.

Referring to fig. 4, a stopper C at the second process rest position S6 is provided on the connecting arm Z1.

Referring to fig. 13, the present invention further provides a stainless steel bottom-beating pot production line using the above rotary conveying device, which includes the above rotary conveying device, a pot body feeding mechanism S7, an aluminum sheet feeding mechanism S13, a bottom-wrapping feeding mechanism S14, a spot welding machine H, a blanking mechanism S8, a heater S9, a punch S11 and a discharging mechanism S12, the first corner joining position S1 is connected with the pot body feeding mechanism S7 for conveying the pot body to the first corner joining position S1 and loading on the tooling die holder W on the transfer die holder T, the feeding mechanism S7 may be a conveying table, the fourth corner joining position S4 is connected with the blanking mechanism S8 for blanking the multi-axis processed pot body through the intermediate process, the blanking mechanism S8 may be a manipulator, the blanking mechanism S8 is subsequently connected with the heater S9 and the punch S11, wherein the punch S11 is used for punching the bottom-wrapping sheet, the aluminum sheet and the bottom wall together, the heater S9 is connected with the punch machine S11 through a multi-shaft manipulator S10, a discharging mechanism S12 is connected behind the punch machine S11, and the discharging mechanism S12 can be a conveying table; the second corner joint position S2 is connected with an aluminum sheet feeding mechanism S13, and is used for placing an aluminum sheet on a pot body positioned at the second corner joint position S2, the first procedure stop position S5 is connected with a bottom sheet feeding mechanism S14, and is used for placing a bottom sheet on the pot body positioned at the first procedure stop position S5 and already provided with the aluminum sheet, the second procedure stop position S6 is connected with a spot welding machine H, and the spot welding machine H is used for welding and positioning the bottom sheet, the aluminum sheet and the bottom wall of the pot body.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (10)

1. The rotary conveying device is characterized by comprising:

the circulating track comprises a first section, a second section, a third section and a fourth section which are sequentially connected, and the tracks of the 4 sections are alternately arranged in height;

the transfer die holders are installed on the tracks of the two low-position sections and can reciprocate along the tracks of the corresponding low-position sections, and transfer rails connected with the tracks of the high-position sections are arranged on the transfer die holders;

the lower side of the tooling die holder is provided with a slideway matched with the track of the high-level section and the transfer track;

the first shifting device is arranged between the transfer die holder and the low section where the transfer die holder is located, and can drive the transfer die holder to move towards the direction of the next section along the track of the section where the first shifting device is located, so that the transfer rail is connected with the track of the next high section;

the second shifting device is arranged on the side part of the high-position section track and is provided with an attachment device for coupling the tooling die holder, the second shifting device can drive the coupled tooling die holder to move towards the next section along the track of the section where the second shifting device is located, so that the tooling die holder on the transfer die holder is transferred to the next high-position section, the tooling die holder on the high-position section is transferred to the transfer die holder of the next low-position section, and the circular movement of the tooling die holder is realized;

the first shifting device and the second shifting device can control the tooling die holder to move and stop on the 4 sections so as to realize the connection of the tooling die holder with the feeding process, the middle process and the blanking process.

2. The rotary conveyor of claim 1, wherein the first and third sections are low section tracks and the second and fourth sections are high section tracks.

3. The rotary conveyor assembly of claim 2 wherein the corner of the first section end and the fourth section end defines a first corner engagement position, the corner of the first section end and the second section end defines a second corner engagement position, the corner of the second section end and the third section end defines a third corner engagement position, and the corner of the third section end and the fourth section end defines a fourth corner engagement position;

the second section comprises at least two process rest positions for connecting the second corner connecting position and the third corner connecting position, each process rest position corresponds to a corresponding intermediate process, the second shifting device on the second section is attached to and shifts the tooling die holder on the first section, so that the tooling die holder is sequentially shifted from the second corner connecting position to each process rest position and the third corner connecting position, and is shifted to the fourth corner connecting position by the first shifting device on the third section, and then is shifted to the first corner connecting position by the second shifting device on the fourth section.

4. The rotary conveying device according to claim 3, wherein the second corner connecting position, the process stop position and the third corner connecting position are arranged at equal intervals, the second section is distributed with tool die holders corresponding to the number of the process stop positions, the third section, the fourth section and the first section are distributed with 2 tool die holders, and the tool die holders are periodically switched on and off on the circulating track; and the second shifting device on the second section is provided with 1 more attaching devices corresponding to the rest positions of each working procedure, and the attaching devices periodically transfer the second corner connecting positions and the tooling die holders on the rest positions of each working procedure to the next working position in sequence.

5. The rotary conveyor according to claim 4, wherein the number of the process rest positions is 2, including a first process rest position and a second process rest position, the second corner joint position, the first process rest position, the second process rest position and the third corner joint position constitute 4 equidistant work positions, the number of the tooling die holders on the second section is 2, the second section is provided with 3 attachment devices corresponding to the 2 process rest positions, and the 3 attachment devices periodically transfer the tooling die holders on the second corner joint position, the first process rest position and the second process rest position to a next work position in sequence.

6. The rotary conveying device according to claim 4, wherein the second shifting device comprises a second transmission rack, a second transmission gear, a second motor and a cross bar, the second transmission rack and the cross bar are arranged along the second section and the fourth section, the second transmission gear is meshed with the corresponding second transmission rack, the output end of the second motor is connected with the corresponding second transmission gear, the cross bar is fixedly connected with the second motor, the attachment device comprises a cylinder, the cylinder is mounted on the cross bar, a pin rod is mounted at the output end of the cylinder, a pin hole is formed in the tooling die holder corresponding to the pin rod, and the pin rod is inserted into the corresponding pin hole to couple the attachment device with the tooling die holder.

7. The rotary conveying device according to claim 3, wherein the second section is provided with a limiting device corresponding to each process stop position, and the limiting device limits the tool die holder when the tool die holder reaches the corresponding process stop position and releases the limiting when the tool die holder is transferred next time.

8. The rotary conveying device according to claim 7, wherein the limiting device comprises a limiting cylinder, a limiting pin is mounted on a push rod of the limiting cylinder, and a limiting part is arranged on the tooling die holder corresponding to the limiting pin; when the tool die holder reaches the corresponding process stop position, the limiting cylinder pushes the limiting pin into the limiting part to limit and lock the tool die holder, and when the tool die holder is transferred next time, the limiting cylinder drives the limiting pin to withdraw from the limiting part to realize unlocking.

9. The rotary transport device of claim 1, wherein the first displacement device comprises a first transmission rack, a first transmission gear and a first motor, the first transmission rack is arranged along the first section and the third section, the first transmission gear is engaged with the first transmission rack, the first motor is fixedly connected with the transfer mold base, and the output end of the first motor is connected with the first transmission gear.

10. The rotary conveying device according to claim 9, wherein the transfer die holder is provided with a positioning device, the positioning device comprises a positioning cylinder, a push rod of the positioning cylinder is provided with a positioning pin, the tooling die holder is provided with a positioning portion corresponding to the positioning pin, when the tooling die holder is mounted on the transfer die holder, the positioning cylinder pushes the positioning pin into the positioning portion to position and lock the tooling die holder, and when the transfer die holder is transferred to a next section, the positioning cylinder drives the positioning pin to exit the positioning portion to unlock the tooling die holder.

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