Rotary conveyor device

Abstract

The present invention belongs to the technical field of automated material conveying, and is a rotary conveying device, comprising a circulating track, a transfer mold base, a tooling mold base, and first and second shifting devices. The circulating track comprises first to fourth sections connected in sequence. The transfer mold base is installed on the tracks of two low-position sections, and the transfer mold base can reciprocate along the low-position section. The transfer mold base is provided with a transfer rail connected with the track of the high-position section. A slideway cooperating with the track of the high-position section and the transfer rail is provided on the lower side of the tooling mold base. The first shifting device is provided on the low-position section, and can drive the transfer mold base to move in the direction of the next section along the track of the section where it is located, so that the transfer rail is connected with the track of the next high-position section. The second shifting device is provided on the side of the track of the high-position section, and is provided with an attachment device for coupling the tooling mold base. The tooling mold base can be controlled to move and stop on the above-mentioned sections through the first and second shifting devices, so as to realize the connection between the tooling mold base and the loading process, the intermediate process and the unloading process.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic material conveying, and in particular relates to a rotary conveying device. Background Art

[0002] In order to improve production efficiency, people hope to achieve automated production, such as in some cases involving the need to complete multiple processes on the same tooling, and in the process of pre-positioning additional parts on the workpiece. For example, in the processing of hardware containers and kitchen utensils, it is usually necessary to position several hardware parts together before proceeding to the next step. This processing object involves workpieces and additional parts. During processing, the additional parts need to be placed at a certain position on the workpiece, and then pre-fixed through the corresponding process, such as spot welding, and then proceed to subsequent processes, such as stamping.

[0003] With existing technology, automated production requires multiple conveyor lines to implement different processes, and each conveyor line needs to be equipped with similar tooling. In addition, more robots are needed to transfer workpieces or accessories to the corresponding workstations, which results in very high costs. Therefore, it is necessary to design an economical solution that can be automated. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of automatic feeding of multiple processes on the same tooling and to provide an economical and feasible rotary conveying device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A rotary conveying device comprises a circulating track, a transfer die base, a tooling die base, a first shifting device and a second shifting device.

[0007] The circulating track includes a first section, a second section, a third section and a fourth section which are connected in sequence, and the tracks of the above four sections are arranged alternately in high and low positions.

[0008] The transfer mold base is installed on the tracks of two low-position sections. The transfer mold base can reciprocate along the tracks of the corresponding low-position sections. The transfer mold base is provided with a transfer rail connected with the track of the high-position section.

[0009] A slideway cooperating with the track and transfer rail of the high-position section is arranged on the lower side of the tooling die base.

[0010] The first shifting device is arranged between the transfer mold base and the low-position section where the transfer mold base is located. The first shifting device can drive the transfer mold base to move toward the next section along the track of the section where it is located, so that the transfer rail is connected with the track of the next high-position section.

[0011] The second shifting device is arranged on the side of the high-position section track, and is provided with an attachment device for coupling the tooling mold base. The second shifting device can drive the coupled tooling mold base along the track of the section where it is located to move in the direction of the next section, so that the tooling mold base on the transfer mold base is transferred to the next high-position section, and the tooling mold base on the high-position section is transferred to the transfer mold base of the next low-position section, thereby realizing the cyclic movement of the tooling mold base.

[0012] The tooling die base can be controlled to move and stop in the above four sections through the first shifting device and the second shifting device, so as to realize the connection between the tooling die base and the loading process, the intermediate process and the unloading process.

[0013] Compared with the prior art, the present invention adopts a circulating track with alternating high and low tracks, and connects the transfer of the tooling die base between two adjacent sections by transferring the die base. By controlling the working states of the first and second shifting devices, the movement and stop of the tooling die base in the four sections can be controlled, so that the tooling die base is connected with the loading process, the intermediate process and the unloading process, thereby reducing the loading and unloading operations of the workpiece in each intermediate process, and realizing the repeated use of the tooling die base on a circulating track to complete multiple processes, effectively reducing the use of conveyor lines, tooling and robots, and reducing the occupied space. This implementation scheme is economical and efficient.

[0014] Preferably, the first section and the third section are low-position section tracks, and the second section and the fourth section are high-position section tracks.

[0015] Preferably, the corner between the beginning of the first section and the end of the fourth section is defined as the first corner connection position, the corner between the end of the first section and the beginning of the second section is defined as the second corner connection position, the corner between the end of the second section and the beginning of the third section is defined as the third corner connection position, and the corner between the end of the third section and the beginning of the fourth section is defined as the fourth corner connection position.

[0016] The second section includes at least two process stop positions connecting the second corner connection position and the third corner connection position, each process stop position corresponds to a corresponding intermediate process, and the second shifting device on the second section is attached to and shifts the tooling die base on the first section, so that the tooling die base is shifted from the second corner connection position to each process stop position and the third corner connection position in sequence, and is shifted to the fourth corner connection position by the first shifting device of the third section, and then the tooling die base is shifted to the first corner connection position by the second shifting device on the fourth section. Generally, the first corner connection position is a loading station, which is used to connect with the loading mechanism, the second corner connection position and the at least two process stop positions are intermediate stations, which can meet the connection of at least 3 intermediate processes, and the fourth corner connection position is a unloading station, which is used to connect with the unloading mechanism.

[0017] Preferably, the second corner connection position, the process stop position and the third corner connection position are equidistantly arranged, the second section is allocated with tooling mold bases corresponding to the number of process stop positions, the third section, the fourth section and the first section are allocated with a total of 2 tooling mold bases, and the above-mentioned tooling mold bases are periodically transferred and switched on the circulating track.

[0018] The second shifting device on the second section is provided with one more attachment device than the process stop positions corresponding to each process stop position, and the attachment device periodically transfers the tooling die base on the second corner connection position and each process stop position to the next station in sequence. The above arrangement can synchronously and sequentially transfer the tooling die base to the direction of the next station. Compared with the method of respectively setting fixed tooling die bases on the corresponding stations and transferring the workpiece and the attachment to the die base, the above method omits the alignment operation between the workpiece and the die base, and simplifies the structure of the conveying mechanism, which is conducive to reducing costs.

[0019] As a specific implementation manner, there are two process stop positions, including a first process stop position and a second process stop position, and the second corner connection position, the first process stop position, the second process stop position and the third corner connection position constitute four equidistant workstations, and there are two tooling mold bases allocated on the second section. Three attachment devices are provided corresponding to the two process stop positions in the second section, and the three attachment devices periodically transfer the tooling mold bases on the second corner connection position, the first process stop position and the second process stop position to the next workstation in sequence.

[0020] Preferably, the second shifting device includes 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 to the corresponding second transmission gear, the cross bar is fixedly connected to the second motor, and the attachment device includes a cylinder, the cylinder is mounted on the cross bar, a pin is mounted on the output end of the cylinder, a small hole is provided on the tooling die base corresponding to the pin, and the pin is inserted into the corresponding pin hole to couple the attachment device with the tooling die base. The second shifting device has a simple structure, precise and reliable transmission, and uses the cylinder to drive the extension and retraction of the pin, thereby realizing the matching and disassembly of the pin and the pin hole, and has a fast response speed.

[0021] Preferably, the second section is provided with a limit device corresponding to each process stop position, and the limit device limits the tooling die base when the tooling die base reaches the corresponding process stop position until the limit is released during the next transfer. The setting of the limit device can prevent the tooling die base from moving during the corresponding process and affecting the progress of the process.

[0022] Preferably, the limit device includes a limit cylinder, a limit pin is installed on the push rod of the limit cylinder, and a limit part is provided on the tooling die base corresponding to the limit pin. When the tooling die base reaches the corresponding process stop position, the limit cylinder pushes the limit pin into the limit part to limit and lock the tooling die base. During the next transfer, the limit cylinder drives the limit pin to exit the limit part to unlock. The setting method of the above limit device is simple in structure and fast in response speed, and can act quickly when receiving locking and unlocking instructions.

[0023] Preferably, the first shifting device includes 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 meshed with the first transmission rack, the first motor is fixedly connected to the transfer mold base, and its output end is connected to the first transmission gear. The first shifting device has a simple structure and accurate and reliable transmission.

[0024] Preferably, a positioning device is provided on the transfer mold base, and the positioning device includes a positioning cylinder, a positioning pin is installed on the push rod of the positioning cylinder, and a positioning part is provided on the tooling mold base corresponding to the positioning pin. When the tooling mold base is installed on the transfer mold base, the positioning cylinder pushes the positioning pin into the positioning part to position and lock the tooling mold base. When transferring to the next section, the positioning cylinder drives the positioning pin to exit the positioning part to unlock it. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of a rotary conveying device;

[0026] Figure 2 for Figure 1 A top view of

[0027] Figure 3 It is a schematic diagram of the rotary conveying device (excluding the tooling die base);

[0028] Figure 4 for Figure 3 A top view of

[0029] Figure 5 is a schematic diagram of a second shifting device;

[0030] Figure 6 is a schematic diagram of a transfer mold base;

[0031] Figure 7 is a schematic diagram of a transfer mold base and a first shifting device;

[0032] Figure 8 is a schematic diagram of a transfer mold base;

[0033] Fig. 9 It is a schematic diagram of the tooling die base (without the shell);

[0034] Fig.10 It is a schematic diagram of the tooling die base;

[0035] Fig.11 is a schematic diagram of a spot welding machine;

[0036] Fig.12 is a schematic diagram of a spot welding machine;

[0037] Fig.13 The invention relates to a stainless steel bottom pot production line using the rotary conveying device of the present invention. DETAILED DESCRIPTION

[0038] The specific implementation of the present invention is described below with reference to the accompanying drawings.

[0039] See also Figures 1 to 7 The present embodiment provides a rotary conveying device, including a circulating track L, a transfer mold base T, a tooling mold base W, a first shifting device N, and a second shifting device M. 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 four sections are alternately arranged in high and low positions. In a specific implementation, 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.

[0040] See also Figures 1 to 4 , Figure 6 , Fig. 9 and Fig.10 The transfer mold base T is provided with two for loading the tooling mold base W. The transfer mold base T is respectively installed on the tracks of the two low-level sections (L1, L3). The transfer mold base T can reciprocate along the tracks of the corresponding low-level sections (L1, L3). A transfer rail T0 connected with the track of the high-level section (L2, L4) is provided on the transfer mold base T. A slideway W01 matching with the track of the high-level section (L2, L4) and the transfer rail T0 is provided on the lower side of the tooling mold base W. The first shifting device N is provided between the transfer mold base T and the low-level section (L1, L3) where the transfer mold base T is located. The first shifting device N can drive the transfer mold base T to move along the track of the section where it is located in the direction of the next section, so that the transfer rail T0 is connected with the track of the next high-level section (L2, L4).

[0041] See also Figures 1 to 5The second shifting device M is arranged on the side of the track of the high-position section (L2, L4), and is provided with an attachment device F for coupling the tooling die base W. The second shifting device M can drive the coupled tooling die base W to move toward the next section along the track of the section where it is located, so that the tooling die base W on the transfer die base T is transferred to the next high-position section (L2, L4), and the tooling die base W on the high-position section (L2, L4) is transferred to the transfer die base T on the next low-position section (L1, L3), thereby realizing the cyclic movement of the tooling die base W.

[0042] The tooling die base W can be controlled to move and stop in the above four sections through the first shifting device N and the second shifting device M, so as to achieve the connection between the tooling die base W and the loading process, the intermediate process and the unloading process.

[0043] Compared with the prior art, the present invention adopts a circulating track L with alternating high and low tracks, and connects the tooling die base W of two adjacent sections by transferring the die base T. The movement and stop of the tooling die base W in the four sections can be controlled by controlling the working states of the first and second shifting devices M, that is, the workstations corresponding to the corresponding processes are preset on the circulating track L, and the corresponding processes can be carried out after the tooling die base W is driven to the corresponding workstations, so that the tooling die base W is connected with the loading process, the intermediate process and the unloading process, thereby reducing the loading and unloading operations of the workpiece in each intermediate process, and realizing the repeated use of the tooling die base W on one circulating track L to complete multiple processes, effectively reducing the use of conveyor lines, tooling and robots, and reducing the occupied space. This implementation scheme is economical and efficient.

[0044] See also Figure 2 and Figure 4 The corner between the beginning of the first section L1 and the end of the fourth section L4 is defined as the first corner connection position S1, the corner between the end of the first section L1 and the beginning of the second section L2 is defined as the second corner connection position S2, the corner between the end of the second section L2 and the beginning of the third section L3 is defined as the third corner connection position S3, and the corner between the end of the third section L3 and the beginning of the fourth section L4 is defined as the fourth corner connection position S4.

[0045] See also Figures 1 to 4, the second section L2 includes at least two process stop positions connecting the second corner connection position S2 and the third corner connection position S3, each process stop position corresponds to a corresponding intermediate process, the second shifting device M on the second section L2 is attached to and transfers the tooling die base W on the first section L1, so that the tooling die base W is transferred from the second corner connection position S2 to each process stop position and the third corner connection position S3 in sequence, and is transferred to the fourth corner connection position S4 by the first shifting device N of the third section L3, and then the tooling die base W is transferred to the first corner connection position S1 by the second shifting device M on the fourth section L4. Generally, the first corner connection position S1 is a loading station for connecting with a loading mechanism, the second corner connection position S2 and the at least two process stop positions are intermediate stations, which can meet the connection of at least three intermediate processes, and the fourth corner connection position S4 is a unloading station for connecting with an unloading mechanism.

[0046] See also Figure 2 and Figure 4 In a preferred embodiment, the second corner connection position S2, the process stop position and the third corner connection position S3 are equidistantly arranged, the second section L2 is allocated with tooling mold bases W corresponding to the number of process stop positions, the third section L3, the fourth section L4 and the first section L1 are allocated with a total of 2 tooling mold bases W, and the above-mentioned tooling mold bases W are periodically transferred and switched on the circulating track L.

[0047] See also Figure 2 , the second shifting device M on the second section L2 is provided with one more attachment device F than the process stop position corresponding to each process stop position, and the attachment device F periodically transfers the second corner connection position S2 and the tooling die base W on each process stop position to the next station in sequence. The above arrangement can synchronously and sequentially transfer the tooling die base W to the direction of the next station. Compared with the method of respectively setting fixed tooling die bases on the corresponding stations and transferring the workpiece and the attachment to the die base, the above method saves the alignment operation between the workpiece and the die base, and simplifies the structure of the conveying mechanism, which is conducive to reducing costs.

[0048] See also Figures 1 to 4 As a specific implementation, there are two process stop positions, including a first process stop position S5 and a second process stop position S6. The second corner connection position S2, the first process stop position S5, the second process stop position S6 and the third corner connection position S3 constitute four equidistant workstations. Two tooling mold bases W are allocated on the second section L2. Three attachment devices F are provided corresponding to the two process stop positions in the second section L2. The three attachment devices F periodically transfer the tooling mold bases W on the second corner connection position S2, the first process stop position S5 and the second process stop position S6 to the next workstation in sequence.

[0049] See also Figure 1, Figure 3 , Figure 6 and Figure 7 In a preferred embodiment, the first shifting device N includes a first transmission rack N1, a first transmission gear N2 and a first motor N3. The first transmission rack N1 is arranged along the first section L1 and the third section L3. The first transmission gear N2 is meshed with the first transmission rack N1. The first motor N3 is fixedly connected to the transfer mold base T, and its output end is connected to the first transmission gear N2. The first shifting device N has a simple structure and accurate and reliable transmission.

[0050] See also Figure 3 , Figure 6 , Figure 8 and Fig.10 In a preferred embodiment, a positioning device D is provided on the transfer die base T, and the positioning device D includes a positioning cylinder D1, a positioning pin D2 is installed on the push rod of the positioning cylinder D1, and a positioning part W02 is provided on the tooling die base W corresponding to the positioning pin D2. When the tooling die base W is installed on the transfer die base T, the positioning cylinder D1 pushes the positioning pin D2 into the positioning part W02 to position and lock the tooling die base W. When transferring to the next section, the positioning cylinder D1 drives the positioning pin D2 to withdraw from the positioning part W02 to unlock it.

[0051] See also Figure 1 , Fig. 9 and Fig.10 The tooling mold base W includes a tooling base W03 and a plurality of movable clamping seats W04. A mold W05 for mounting a workpiece is provided in the middle of the tooling base W03. The plurality of movable clamping seats W04 are circumferentially arranged on the tooling base W03 around the mold W05. The movable clamping seats W04 can be relatively clamped or loosened. The tooling base W03 is respectively provided with a first guide groove W06 and a first guide rail W07 extending along the movable direction of the movable clamping seat W04 corresponding to each movable clamping seat W04. The movable clamping seat W04 corresponds to the first guide groove W06 and the first guide rail W07 extending along the movable direction of the movable clamping seat W04. A first guide slider W08 is connected to the rail W07, and a first guide column W09 is provided corresponding to the first guide groove W06. The first guide slider W08 slides with the corresponding first guide rail W07, and the first guide column W09 extends to the lower side of the tooling base W03 through the corresponding first guide groove W06. Pushing each first guide column W09 toward the outer edge of the tooling base W03 can loosen the movable clamping seat W04, and pushing the first guide column W09 toward the middle of the tooling base W03 can relatively clamp the movable clamping seat W04.

[0052] See also Figure 1 , Fig. 9 and Fig.10A first pin W10 is respectively provided in the middle of the tooling base W03 corresponding to each movable clamp seat W04, and a second pin W11 is respectively provided on each movable clamp seat W04. The first pin W10 and the second pin W11 are connected by an elastic member W12. The elastic member W12 is preferably a tension spring. The elastic member W12 drives the corresponding movable clamp seat W04 to move toward the middle of the tooling base W03 through the first pin W10, so that the movable clamp seat W04 clamps itself when not subjected to outward force, thereby realizing the reset function, thereby saving the power mechanism for realizing the reset function of the movable clamp seat W04, so as to reduce the production cost.

[0053] See also Fig. 9 The movable clamp W04 includes a seat body W13 connected to the first guide slider W08 and a pulley W14 arranged at the upper end of the seat body W13 close to the mold W05. The pulley W14 is in rolling contact with the outer surface of the workpiece. While clamping the workpiece, the pulley W14 can ensure that the outer surface of the workpiece will not be scratched when the workpiece and the movable clamp W04 move up and down relative to each other, thereby playing a protective role.

[0054] See also Fig. 9 , and also includes a clamp W15 arranged at the upper end of each movable clamp seat W04, the clamp W15 is located on the upper side of the mold W05, and is used to clamp additional parts on the upper end surface of the workpiece, such as clamping the bottom sheet and the aluminum sheet when manufacturing the pot body of the composite pot bottom. Each movable clamp seat W04 is also provided with a clamp driving cylinder W16, and the clamp driving cylinder W16 drives the clamp W15 to clamp or release relatively.

[0055] See also Figure 1 and Fig. 9 The tooling mold base W also includes a shell W17 that covers the upper side of the tooling base W03.

[0056] See also Figures 6 to 9The transfer mold base T includes a transfer base T01 and a clamping base driving mechanism for driving the movable clamping base W04. The transfer base T01 is 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 clamping base W04 in a circumferential direction corresponding to the movable clamping base W04. The clamping base 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 matched with the second guide rail T03 through a second guide slider T05. The invention comprises a pushing part T06 arranged on the side of the first guide column W09 close to the mold W05, and a driving rod T07 arranged on the lower side of the pushing part T06 and extending to the lower side of the transfer base T01 through the second guide groove T02. The driving device T08 is arranged on the lower side of the transfer base T01, and includes a movable plate T09, a second guide column T10, a push block driving cylinder T11, a plurality of connecting seats T12 and a plurality of connecting rods T13. The second guide column T10 is vertically arranged on the lower side of the transfer base T01. T09 can be movably arranged on the second guide column T10 up and down, the multiple connecting seats T12 are circumferentially arranged in the middle of the movable disk T09, the upper end of each connecting rod T13 is hinged to a corresponding driving rod T07, and the lower end is hinged to a corresponding connecting seat T12, the push block driving cylinder T11 is fixedly arranged on the lower side of the movable disk T09, and its push rod is connected to the movable disk T09 to drive the movable disk T09 to move along the second guide column T10, thereby driving the multiple connecting rods T13 to open or close, and when the connecting rods T13 are opened, the connecting rods T13 are opened and closed. When the movable push block T04 pushes the first guide column W09 in the direction away from the mold W05 to loosen the movable clamp W04, the driving device T08 controls the movement of the movable push block T04 to realize the opening or resetting of the first guide column W09, so as to open or close the movable clamp W04. This method has a simple structure and is easy to implement. In addition, the above-mentioned setting method adopts a connecting rod to drive away, and the movement of each movable push block T04 can be synchronously driven by only one cylinder. This control method has low cost and fast action.

[0057] See also Figures 1 to 10When loading the workpiece, the transfer die base T moves to the first corner connection position S1, and the push block driving cylinder T11 drives the movable clamping seat W04 to loosen in order to load the workpiece. After the workpiece is loaded, the driving cylinder stops operating, and the elastic member W12 drives the first guide column W09 to push the movable push block T04 inward, so as to drive the movable plate T09 to press downward against the push rod of the push block driving cylinder T11 and retract it, so that the movable clamping seat W04 moves closer to clamp the workpiece. Similarly, when unloading the workpiece, the transfer die base T moves to the fourth corner connection position S4, and the driving cylinder drives the movable clamping seat W04 to loosen in order to unload the workpiece. The above-mentioned setting method of the transfer die base T is combined with the arrangement method of the circulating track L, and a clamping seat driving mechanism is reasonably set thereon to connect and apply the loading and unloading mechanism of the rotary conveying device, which is suitable for various production lines and has strong practicality and high efficiency.

[0058] See also Fig. 9 and Fig.10 In a preferred embodiment, two first guide grooves W06 are provided opposite to each other, the first guide rail W07 is provided between the first guide grooves W06, and two first guide posts W09 of each movable clamping seat W04 are provided correspondingly; see Figure 6 and Figure 8 , two second guide grooves T02 are relatively provided, the second guide rail T03 is arranged between the second guide grooves T02, and two driving rods T07 are correspondingly provided for each movable push block T04. The upper end of each connecting rod T13 is arranged between the two driving rods T07 corresponding to the movable push block T04, and is hinged to the two driving rods T07. The above-mentioned setting method can improve the smoothness and stability of the movement of the movable clamping seat W04 and the movable push block T04, and prevent them from shaking.

[0059] See also Figures 1 to 5 , Fig. 9 and Fig.10In a preferred embodiment, the second shifting 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 the second section L2 and the fourth section L4. The second transmission gear M02 is meshed with the corresponding second transmission rack M01. The output end of the second motor M03 is connected to the corresponding second transmission gear M02. The cross bar M04 is fixedly connected to the second motor M03. The attachment device F includes an attachment cylinder F01. The attachment cylinder F01 is installed on the cross bar M04 at intervals. A pin rod F02 is installed at the output end of the attachment cylinder F01. A pin hole W18 is provided on the tooling die base W corresponding to the pin rod F02. The pin rod F02 is inserted into the corresponding pin hole W18 to couple the attachment device F with the tooling die base W. The second displacement device M has a simple structure, accurate and reliable transmission, and utilizes the attached cylinder F01 to drive the extension and retraction of the pin rod F02, thereby realizing the matching and disassembly of the pin rod F02 and the pin hole W18, and has a fast response speed.

[0060] See also Figure 3 and Figure 4 In a preferred embodiment, the second section L2 is provided with a limit device C corresponding to each process stop position, and the limit device C limits the tooling die base W when the tooling die base W reaches the corresponding process stop position until the limit is released when the next transfer is performed. The setting of the limit device C can prevent the tooling die base W from moving during the corresponding process and affecting the progress of the process.

[0061] See also Figure 3 , Figure 4 , Fig.10 The limit device C includes a limit cylinder C01, and a limit pin C02 is installed on the push rod of the limit cylinder C01. When the tooling die holder W reaches the corresponding process stop position, the limit cylinder C01 pushes the limit pin C02 into the limit part W20 to limit and lock the tooling die holder W. During the next transfer, the limit cylinder C01 drives the limit pin C02 to withdraw from the limit part W20 to unlock. The setting method of the above-mentioned limit device C is simple in structure and fast in response speed, and can act quickly when receiving the locking and unlocking instructions. As a preferred embodiment, the positioning part W02 is the limit part W20.

[0062] See also Figures 1 to 13 As a specific implementation method, the rotary conveying device is used for the production of stainless steel bottom pots. The first corner connection position S1 is connected to the pot body feeding mechanism S7, the second corner connection position S2 is connected to the aluminum sheet feeding mechanism S13, the first process stop position S5 is connected to the bottom sheet feeding mechanism S14, the second process stop position S6 is connected to the spot welder H, and the fourth corner connection position S4 is connected to the unloading mechanism S8.

[0063] See also Figure 4 , Fig.11 and Fig.12 The track of the second section L2 corresponding to the second process rest position S6 is designed as a split track L21, and the split track L21 is installed on a vertical lifting device Z. When the tooling die base W reaches the second process rest position S6, the split track L21 can be moved downward relative to the lower electrode H2 of the spot welding machine H through the vertical lifting device Z, so that the workpiece on the tooling die base W moves downward to contact the lower electrode H2 of the spot welding machine H to achieve spot welding. After the spot welding is completed, the split track L21 is moved upward relative to the lower electrode H2 of the spot welding machine H through the vertical lifting device Z to combine with the second section L2.

[0064] See also Fig. 9 , Fig.11 and Fig.12 Specifically, the spot welding machine H includes a main unit H3, an upper electrode H1 and a lower electrode H2. The upper electrode H1 is driven to move up and down by a welding driving device H4. The mold W05 is installed on a tooling base W03 through a vertically arranged middle tube W21. A through hole W22 connected to the middle tube W21 is opened in the middle of the mold W05. The workpiece is sleeved on the mold W05 with its opening facing downward. The lower electrode H2 is arranged on the lower side of the tooling die base W and is coaxial with the middle tube W21. The vertical lifting device Z drives the split track L21 together with the tooling die base W and the workpiece to move downward, so that the top end of the lower electrode H2 enters the middle tube W21 and contacts the upper top surface of the workpiece through the mold W05. The arrangement of the spot welding machine H is compact in structure. The track of the second section L2 corresponding to the second process rest position S6 is designed as a split track L21 that can move up and down, thereby driving the workpiece to move up and down relative to the lower electrode H2 to achieve spot welding. The circulating track L of this arrangement is better connected and matched with the spot welding machine H, thereby simplifying the structure of the spot welding machine H.

[0065] See also Fig. 9 , Fig.11 and Fig.12 Specifically, the vertical lifting device Z includes a connecting arm Z1, a vertical lifting component Z2 that drives the connecting arm Z1 to move up and down, the connecting arm Z1 is fixedly connected to the split track L21, the vertical lifting component Z2 can be an existing screw drive mechanism, which includes a motor, a screw, and a nut seat, the nut seat is threadedly connected to the screw, the motor screw rotates to drive the nut seat to move up and down, a slide is connected to the nut seat, and the connecting arm Z1 is fixedly connected to the slide.

[0066] See also Figure 4 The limiting device C located at the second process rest position S6 is arranged on the connecting arm Z1.

[0067] See also Fig.13The present invention also provides a stainless steel bottom pot production line using the above-mentioned rotary conveying device, which includes the above-mentioned rotary conveying device, a pot body feeding mechanism S7, an aluminum sheet feeding mechanism S13, a bottom sheet feeding mechanism S14, a spot welding machine H, a feeding mechanism S8, a heating machine S9, a punching machine S11 and a discharging mechanism S12. The first corner connection position S1 is connected to the pot body feeding mechanism S7, which is used to convey the pot body to the first corner connection position S1 and load it on the tooling mold base W on the transfer mold base T. The feeding mechanism S7 can be a conveying table, and the fourth corner connection position S4 is connected to the feeding mechanism S8, which is used to discharge the pot body processed by the intermediate process. The feeding mechanism S8 can be a multi-axis manipulator. The feeding mechanism S8 is subsequently connected with A heating machine S9 and a punching machine S11, wherein the punching machine S11 is used to punch the bottom sheet, the aluminum sheet and the bottom wall of the pot body together, the heating machine S9 and the punching machine S11 are connected by a multi-axis manipulator S10, and a discharge mechanism S12 is connected behind the punching machine S11, and the discharge mechanism S12 can be a conveyor table; the second corner connection position S2 is connected to an aluminum sheet feeding mechanism S13, which is used to place the aluminum sheet on the pot body located at the second corner connection position S2, the first process stop position S5 is connected to a bottom sheet feeding mechanism S14, which is used to place the bottom sheet on the pot body where the aluminum sheet has been placed at the first process stop position S5, and the second process stop position S6 is connected to a spot welder H, and the spot welder H is used to weld and position the bottom sheet, the aluminum sheet and the bottom wall of the pot body.

[0068] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A rotary conveying device, characterized in that: include: The circular track comprises a first section, a second section, a third section and a fourth section which are connected in sequence, and the tracks of the above four sections are arranged alternately in high and low positions; A transfer mold base is installed on the tracks of the two low-position sections. The transfer mold base can reciprocate along the tracks of the corresponding low-position sections. The transfer mold base is provided with a transfer rail connected with the track of the high-position section. The tooling die base has a slideway on the lower side that cooperates with the track and transfer rail of the high section; A first shifting device is provided between the transfer mold base and the low-position section where the transfer mold base is located, and the first shifting device can drive the transfer mold base to move along the track of the section where it is located toward the next section, so that the transfer rail is connected with the track of the next high-position section; The second shifting device is arranged on the side of the high-position section track, and is provided with an attachment device for coupling the tooling die base. The second shifting device can drive the coupled tooling die base to move in the direction of the next section along the track of the section where it is located, so that the tooling die base on the transfer die base is transferred to the next high-position section, and the tooling die base on the high-position section is transferred to the transfer die base of the next low-position section, so as to realize the cyclic movement of the tooling die base; The tooling die base can be controlled to move and stop in the above four sections through the first shifting device and the second shifting device, so as to realize the connection between the tooling die base and the loading process, the intermediate process and the unloading process.

2. The rotary conveying device according to claim 1, characterized in that: The first segment and the third segment are low-level segment tracks, and the second segment and the fourth segment are high-level segment tracks.

3. The rotary conveying device according to claim 2, characterized in that: The corner between the first section head end and the fourth section end is defined as the first corner connection position, the corner between the first section end and the second section head end is defined as the second corner connection position, the corner between the second section end and the third section head end is defined as the third corner connection position, and the corner between the third section end and the fourth section head end is defined as the fourth corner connection position; The second section includes at least two process stop positions connecting the second corner connection position and the third corner connection position, and each process stop position corresponds to a corresponding intermediate process. The second shifting device on the second section is attached to and transfers the tooling mold base on the first section, so that the tooling mold base is transferred from the second corner connection position to each process stop position and the third corner connection position in sequence, and is transferred to the fourth corner connection position by the first shifting device on the third section, and then the tooling mold base is transferred to the first corner connection position by the second shifting device on the fourth section.

4. The rotary conveying device according to claim 3, characterized in that: The second corner connection position, the process stop position and the third corner connection position are equidistantly arranged, and the second section is allocated with tooling mold bases corresponding to the number of process stop positions, and the third section, the fourth section and the first section are allocated with a total of 2 tooling mold bases, and the above-mentioned tooling mold bases are periodically transferred and switched on the circulating track; the second shifting device on the second section is provided with an attachment device corresponding to each process stop position, which is one more than the number of the process stop positions, and the attachment device periodically transfers the tooling mold bases on the second corner connection position and each process stop position to the next work station in sequence.

5. The rotary conveying device according to claim 4, characterized in that: There are two process stop positions, including a first process stop position and a second process stop position. The second corner connection position, the first process stop position, the second process stop position and the third corner connection position constitute four equidistant workstations. There are two tooling mold bases allocated on the second section. Three attachment devices are provided corresponding to the two process stop positions in the second section. The three attachment devices periodically transfer the tooling mold bases on the second corner connection position, the first process stop position and the second process stop position to the next workstation in sequence.

6. The rotary conveying device according to claim 4, characterized in that: The second shifting device includes 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 to the corresponding second transmission gear. The cross bar is fixedly connected to the second motor. The attachment device includes a cylinder, which is mounted on the cross bar. A pin rod is installed at the output end of the cylinder. A pin hole is provided on the tooling die base corresponding to the pin rod. The pin rod is inserted into the corresponding pin hole to couple the attachment device with the tooling die base.

7. The rotary conveying device according to claim 3, characterized in that: The second section is provided with a limit device corresponding to each process stop position, and the limit device limits the tooling mold base when the tooling mold base reaches the corresponding process stop position until the limit is released during the next transfer.

8. The rotary conveying device according to claim 7, characterized in that: The limit device includes a limit cylinder, a limit pin is installed on the push rod of the limit cylinder, and a limit part is provided on the tooling die base corresponding to the limit pin; when the tooling die base reaches the corresponding process stop position, the limit cylinder pushes the limit pin into the limit part to limit and lock the tooling die base, and during the next transfer, the limit cylinder drives the limit pin to exit the limit part to achieve unlocking.

9. The rotary conveyor device according to claim 1, characterized in that: The first shifting device includes 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 meshed with the first transmission rack. The first motor is fixedly connected to the transfer mold base, and its output end is connected to the first transmission gear.

10. The rotary conveyor device according to claim 9, characterized in that: The transfer mold base is provided with a positioning device, and the positioning device includes a positioning cylinder. A positioning pin is installed on the push rod of the positioning cylinder. A positioning part is provided on the tooling mold base corresponding to the positioning pin. When the tooling mold base is installed on the transfer mold base, the positioning cylinder pushes the positioning pin into the positioning part to position and lock the tooling mold base. When transferring to the next section, the positioning cylinder drives the positioning pin to exit the positioning part to unlock it.

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