Multi-shaft rotating pitch changing device

Abstract

The utility model discloses a multi-shaft rotating pitch changing device which comprises a base, a plurality of material taking mechanisms, a guide mechanism and a driving mechanism, each material taking mechanism comprises a connecting base, a rotating shaft, a material taking assembly, a rotating piece and a pitch changing piece, each guide mechanism comprises a guide plate and a plurality of guide pins, and each driving mechanism comprises a driving piece, a driving base and a driving plate. The driving part is connected with the driving seat to drive the guide plate to move, so that the guide pin pushes the rotating part to drive the material taking assembly to rotate and drives the driving plate on the driving seat to drive the variable-pitch part of the material taking mechanism at the head end to move, and then the two adjacent variable-pitch parts are driven to move in sequence; and therefore, the material taking assemblies on the two adjacent connecting seats move to equal preset intervals along with the movement of the variable-pitch pieces. According to the multi-shaft rotating pitch changing device, only one driving piece is adopted, the structure is simple, the transfer efficiency can be improved, and the cost and the fault rate are reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of synchronous rotation distance conversion, and particularly relates to a multi-axis rotation distance conversion device. BACKGROUND

[0002] In production and processing, workpieces usually need to be transferred in different trays, however, the distances and positions of the workpiece-carrying positions in different trays are usually different, so a rotation distance conversion device needs to be used to transfer workpieces in different trays. At present, the rotation distance conversion device usually cooperates multiple pen-shaped air cylinders and multiple rotary air cylinders to realize multi-axis distance conversion and rotation functions, so as to facilitate the transfer of workpieces in different trays. However, due to too many pen-shaped air cylinders and rotary air cylinders, the cost and failure rate of the rotation distance conversion device are high. CONTENT OF THE UTILITY MODEL

[0003] In view of the above, it is necessary to provide a multi-axis rotation distance conversion device to reduce the cost and transfer failure rate.

[0004] The embodiment of the application provides a multi-axis rotation distance conversion device, which comprises:

[0005] a base;

[0006] a plurality of material taking mechanisms, the plurality of material taking mechanisms are sequentially arranged and sequentially connected in linkage from a first end to a last end, each of the material taking mechanisms comprises a connecting seat, a rotating shaft, a material taking assembly, a rotating piece and a distance conversion piece, the connecting seat is connected with the base and the distance conversion piece on opposite sides; one end of the rotating shaft is connected with the material taking assembly, and the other end of the rotating shaft is rotatably arranged through the connecting seat to be connected with the rotating piece; the distance conversion pieces of adjacent two material taking mechanisms are connected in linkage, wherein the connecting seats of the material taking mechanisms at the first end and the middle part are slidingly arranged on the base, and the connecting seat of the material taking mechanism at the last end is fixedly arranged on the base;

[0007] a guide mechanism comprising a guide plate and a plurality of guide pins, the connecting seats are slidingly arranged on the guide plate at intervals, the rotating pieces are arranged on one side of the guide plate at intervals, and the guide pins are arranged on the guide plate at intervals and correspond to the rotating pieces one by one;

[0008] The driving mechanism comprises a driving member, a driving base and a driving plate. The driving member is arranged at one end of the base and connected to the driving plate on both sides of the driving base. One end of the guide plate is connected to the top of the driving base. The driving plate is slidingly and stoppably connected to the variable distance member of the material taking mechanism at the first end. The driving member is connected to the driving base to drive the guide plate to move, so that the guide pin drives the rotating member to rotate the material taking assembly, and drives the driving plate on the driving base to move the variable distance member of the material taking mechanism at the first end, thereby driving the adjacent two variable distance members to move in sequence, so that the material taking assemblies on the adjacent two connecting seats move to the equal interval preset interval.

[0009] In some embodiments, each material taking mechanism further comprises a first stopper and a second stopper. The first stopper and the second stopper are arranged at the top of the connecting seat and located on both sides of the rotating shaft. The first stopper and the second stopper are respectively used to stop the rotating member when the rotating member rotates.

[0010] In some embodiments, each material taking mechanism further comprises a connecting block, a first ball head plunger and a second ball head plunger. The connecting block is arranged on the connecting seat. The first ball head plunger and the second ball head plunger are arranged on the connecting block. The rotating member has a ball groove matched with the first ball head plunger and the second ball head plunger. The ball groove is inserted into the second ball head plunger from the first ball head plunger with the rotation of the rotating member to position the rotating member.

[0011] In some embodiments, the rotating member comprises a rotating part and a fan-shaped part. The rotating part is connected to both ends of the rotating shaft. The fan-shaped part is connected to the rotating part and arranged on the side of the guide plate away from the connecting seat. The fan-shaped part has a circular arc guide surface and a guide groove connected to the circular arc guide surface. The guide pin is guided into the guide groove from the circular arc guide surface.

[0012] In some embodiments, one end of the variable distance member of the material taking mechanism is arranged as a T-shaped buckle. The other end of the variable distance member of the material taking mechanism is arranged with a T-shaped open groove matched with the T-shaped buckle. The variable distance members of the adjacent two material taking mechanisms are slidingly connected through the T-shaped buckle and the T-shaped open groove.

[0013] In some embodiments, the driving plate is provided with a strip-shaped hole. One end of the variable distance member of the material taking mechanism at the first end is provided with a push-pull pin matched with the strip-shaped hole. The push-pull pin is slidingly connected to the strip-shaped hole.

[0014] In some embodiments, the end of the variable distance part of the material taking mechanism of the head end is provided with two guide blocks, the push-pull pin is arranged between the two guide blocks, and the driving plate is arranged between the two guide blocks.

[0015] In some embodiments, the base comprises a base plate, a variable distance guide rail and a driving guide rail, the variable distance guide rail and the driving guide rail are arranged on the base plate, the connecting seat of the material taking mechanism of the head end and the middle part is arranged on the variable distance guide rail, the connecting seat of the material taking mechanism of the tail end is arranged on the variable distance guide rail and fixedly connected with the base plate, the driving seat is arranged on the driving guide rail, and the driving part is arranged on the base plate.

[0016] In some embodiments, each material taking mechanism further comprises two pressure guide parts, the two pressure guide parts are arranged at intervals, one of the pressure guide parts is arranged on the connecting seat, and the other pressure guide part is arranged on the variable distance part, and the guide plate is arranged between the two pressure guide parts.

[0017] In some embodiments, the material taking assembly comprises a base and a plurality of suction accessories, the base is connected with one end of the rotating shaft, the plurality of suction accessories are arranged at intervals on the base, and the plurality of suction accessories are used for adsorbing workpieces.

[0018] The multi-shaft rotating distance changing device in use, any two adjacent material taking mechanisms in the plurality of material taking mechanisms are initial interval, at this time, the plurality of material taking mechanisms and the plurality of guide pins are defined as first, second, third,..., n from the first end to the end, and the corresponding connecting seat, rotating shaft, material taking assembly, rotating piece and distance changing piece are also defined as first, second, third,..., n from the first end to the end, wherein the first is defined as the first end, the second is defined as the middle part closest to the first end, and the n is defined as the end, the distance between the first rotating piece and the first guide pin, the distance between the second rotating piece and the second guide pin, the distance between the third rotating piece and the third guide pin,..., the distance between the n rotating piece and the n guide pin increase in turn, the driving piece drives the driving seat to move away from the first material taking mechanism, the driving seat drives the guide plate and the driving plate to move, the guide plate drives the plurality of guide pins to move synchronously, at this time, since the driving plate and the first distance changing piece are in sliding connection, the driving plate cannot drive the first distance changing piece to move before abutting against the first distance changing piece, when the guide plate drives the plurality of guide pins to move synchronously, within the sliding stroke between the driving plate and the first distance changing piece, the first guide pin first contacts and pushes the first rotating piece to rotate, the first rotating piece rotates to drive the first rotating shaft and the first material taking assembly to rotate, then the second guide pin contacts and pushes the second rotating piece to rotate, the second rotating piece rotates to drive the second rotating shaft and the second material taking assembly to rotate, then the third guide pin contacts and pushes the third rotating piece to rotate, the third rotating piece rotates to drive the third rotating shaft and the third material taking assembly to rotate, when the third guide pin contacts the third rotating piece, the first guide pin has abutted and pushed the first rotating piece to rotate to a specified angle direction and has separated from the first rotating piece, so the fourth, fifth,..., n guide pins contact and push the corresponding rotating pieces to rotate, at the same time, when the third guide pin contacts the third rotating piece, the driving plate abuts against the first distance changing piece to drive the first distance changing piece to move, the first distance changing piece moves relative to the second distance changing piece to change the interval between the first material taking mechanism and the second material taking mechanism and become the preset interval, at this time, the second rotating piece rotates to a specified angle direction, when the fourth guide pin contacts the fourth rotating piece, the first distance changing piece drives the second distance changing piece to move, the second distance changing piece moves relative to the third distance changing piece to change the interval between the second material taking mechanism and the third material taking mechanism and become the preset interval, at this time, the third rotating piece rotates to a specified angle direction, so the third, fourth,..., n-1 distance changing pieces move to make the plurality of material taking mechanisms all have the preset interval, thereby realizing the rotation and distance changing of the plurality of material taking mechanisms, it can also be understood that the rotation occurs first and then the distance changing in the process that the plurality of material taking mechanisms change from the initial interval to the preset interval, wherein the distance between the two adjacent guide pins is equal to the preset interval.When the distance between the multiple material taking mechanisms is the preset distance, the distance between the rotating member of each material taking mechanism and the corresponding guide pin is equal.

[0019] When it is required to change the distance between the multiple material taking mechanisms from the preset distance to the initial distance, the driving member drives the driving seat to move reversely, the multiple guide pins synchronously contact and push the corresponding rotating members to rotate reversely, when the multiple rotating members are all rotated reversely to the initial angle direction and are all separated from the corresponding guide pins, the first distance changing member moves reversely towards the second distance changing member to change the distance between the first material taking mechanism and the second material taking mechanism from the preset distance to the initial distance, then the first distance changing member pushes the second distance changing member to move reversely towards the third distance changing member to change the distance between the second material taking mechanism and the third material taking mechanism from the preset distance to the initial distance, and so on, the third, fourth, …, and n-1 distance changing members move reversely to change the distance between the material taking mechanisms from the preset distance to the initial distance, so as to realize the reverse rotation and the reverse distance changing of the multiple material taking mechanisms, which can also be understood as that the rotation occurs first and then the distance changing occurs in the process of changing the distance between the multiple material taking mechanisms from the preset distance to the initial distance.

[0020] The multi-axis rotating and distance changing device provided by the embodiment of the application realizes multi-axis rotation and distance changing through the cooperative matching between the base, the multiple material taking mechanisms, the guide mechanism and the driving mechanism, has a simple structure, and adopts one driving member, which is favorable for reducing the number of driving members, thereby reducing the cost and the failure rate of the multi-axis rotating and distance changing device, making the action of the multi-axis rotating and distance changing device reliable, and being favorable for improving the transfer efficiency when the multi-axis rotating and distance changing device is applied to workpiece transfer. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the multi-axis rotating and distance changing device and the workpiece provided by the embodiment of the application.

[0022] Figure 2 is Figure 1 is an exploded schematic view of the multi-axis rotating and distance changing device and the workpiece shown in FIG. 1.

[0023] Figure 3 is Figure 2 is an exploded schematic view of the material taking mechanism and the workpiece in the multi-axis rotating and distance changing device shown in FIG. 1.

[0024] Figure 4 is Figure 1 is a schematic view of the multi-axis rotating and distance changing device and the workpiece rotating and distance changing to the first state.

[0025] Figure 5 is Figure 1 is a schematic view of the multi-axis rotating and distance changing device and the workpiece rotating and distance changing to the second state.

[0026] Figure 6 is Figure 1 Fig. 6 is a schematic view of a multi-axis rotary lead screw device and a workpiece rotating lead screw to a third state.

[0027] Main element symbol explanation: multi-axis rotary lead screw device 100, base 10, base plate 11, lead screw guide 12, driving guide 13, fixed block 14, taking mechanism 20, connecting seat 21, rotating shaft 22, taking assembly 23, base 232, suction accessory 234, rotating piece 24, rotating part 242, sector part 244, circular arc guide surface 245, guide groove 246, positioning part 248, lead screw 25, T-shaped buckle 252, T-shaped open groove 254, push-pull pin 256, guide block 258, first stop piece 262, second stop piece 264, connecting block 272, first ball head plunger 274, second ball head plunger 276, pressure guide piece 28, connecting sliding block 29, guide mechanism 30, guide plate 31, guide pin 32, driving mechanism 40, driving piece 41, driving seat 42, driving plate 43, strip-shaped hole 432, driving sliding block 44, assembling seat 45, workpiece 200. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are examples only for explaining the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it is to be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, it is to be noted that the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other, it can be direct connection, or indirect connection through intermediate medium, it can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0031] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0032] Please refer to Figure 1 , the present application provides a multi-axis rotary pitch changing device 100. The multi-axis rotary pitch changing device 100 can be applied to the transfer operation of the workpiece 200, and the workpiece 200 is transferred to different trays (not shown in the figure) through the multi-axis rotary pitch changing device 100.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , the multi-axis rotary pitch changing device 100 includes a base 10, a plurality of material taking mechanisms 20, a guide mechanism 30 and a driving mechanism 40. The plurality of material taking mechanisms 20, the guide mechanism 30 and the driving mechanism 40 are all arranged on the base 10, so that the multi-axis rotary pitch changing device 100 realizes modularized arrangement. The driving mechanism 40 and the guide mechanism 30 cooperate to rotate and change the distance between the adjacent two material taking mechanisms 20 from the initial distance to the preset distance, and the preset distance is greater than the initial distance. Among them, the multi-axis rotary pitch changing device 100 can be connected with an external mechanical arm (not shown in the figure) or other functional device through the base 10, so that the multi-axis rotary pitch changing device 100 can move between different trays.

[0034] For the convenience of understanding and description, the present application defines the XYZ coordinate system as shown in Figure 1 . As shown in Figure 1 , along the X-axis direction from right to left, the first end of the plurality of material taking mechanisms 20, the middle of the plurality of material taking mechanisms 20 and the end of the plurality of material taking mechanisms 20 are defined, the first end of the plurality of material taking mechanisms 20 can be understood as the first material taking mechanism 20 that rotates and changes the distance in the plurality of material taking mechanisms 20, the middle of the plurality of material taking mechanisms 20 is other material taking mechanisms 20 except the first end and the end of the plurality of material taking mechanisms 20, and the middle of the plurality of material taking mechanisms 20 includes at least one material taking mechanism 20.

[0035] The plurality of material taking mechanisms 20 are arranged in sequence and are connected in sequence from the first end to the end, as shown in Figure 2 and Figure 3As shown, each of the material taking mechanisms 20 comprises a connecting seat 21, a rotating shaft 22, a material taking assembly 23, a rotating piece 24 and a variable distance piece 25. The connecting seat 21 is a substantially quadrangular frame structure. The connecting seat 21 is stable in structure and light in weight. Opposite sides of the connecting seat 21 are respectively slidably connected with the base 10 and the variable distance piece 25. The rotating shaft 22 is rotatably arranged in the connecting seat 21 and protrudes from the upper and lower sides of the connecting seat 21. The rotating shaft 22 is rotatably connected to the connecting seat 21 by a bearing. One end of the rotating shaft 22 is connected with the material taking assembly 23, i.e. the material taking assembly 23 is connected with the lower end of the rotating shaft 22. The other end of the rotating shaft 22 is rotatably arranged in the connecting seat 21 and connected with the rotating piece 24, i.e. the rotating piece 24 is connected with the upper end of the rotating shaft 22. The adjacent two variable distance pieces 25 are connected in linkage. In the embodiment, the connecting seats 21 of the material taking mechanisms 20 at the head and the middle are slidably arranged on the base 10, and the connecting seat 21 of the material taking mechanism 20 at the tail is fixedly arranged on the base 10. The linkage between the two variable distance pieces 25 can be understood as that one of the variable distance pieces 25 can drive the other variable distance piece 25 to move after moving a preset stroke.

[0036] As shown in the figure, Figure 2 The guide mechanism 30 comprises a guide plate 31 and a plurality of guide pins 32. The guide plate 31 is arranged on the top of the plurality of connecting seats 21 and slidably connected with the top of the plurality of connecting seats 21. The guide plate 31 is spaced apart from the plurality of rotating shafts 22. The plurality of rotating pieces 24 are arranged on one side of the guide plate 31. The plurality of guide pins 32 are arranged above the guide plate 31 at equal intervals and correspondingly arranged with the plurality of rotating pieces 24. The plurality of rotating pieces 24 are arranged above the guide plate 31.

[0037] The driving mechanism 40 comprises a driving member 41, a driving base 42 and a driving plate 43. The driving member 41 can be a pen-shaped cylinder. The driving member 41 is arranged at one end of the base 10. The driving member 41 and the driving plate 43 are respectively connected to two sides of the driving base 42. The driving base 42 is connected with the driving member 41 and arranged facing the connecting seat 21 of the material taking mechanism 20 at the first end. One end of the guide plate 31 is connected to the top of the driving base 42. The driving plate 43 is connected to the variable distance member 25 of the material taking mechanism 20 at the first end in a sliding and stopping manner. The driving member 41 is connected with the driving base 42 to drive the guide plate 31 to move, so that the guide pin 32 pushes the rotating member 24 to drive the material taking assembly 23 to rotate. The driving member 41 is connected with the driving base 42 to drive the driving plate 43 on the driving base 42 to drive the variable distance member 25 of the material taking mechanism 20 at the first end to move, and then drive the adjacent two variable distance members 25 in the middle to move in sequence, so that the material taking assemblies 23 on the adjacent two connecting seats 21 move to the equal interval preset interval along with the movement of the variable distance member 25. It can be understood that the sliding and stopping connection between the driving plate 43 and the variable distance member 25 can be understood as that the driving plate 43 has a sliding stroke relative to the variable distance member 25. When the driving plate 43 moves the sliding stroke relative to the variable distance member 25, the driving plate 43 abuts against the variable distance member 25 to drive the variable distance member 25 to move left and right in the X-axis direction.

[0038] In the embodiment, the number of the material taking mechanisms 20 and the number of the guide pins 32 can be five. In order to facilitate understanding and description, the plurality of material taking mechanisms 20 and the plurality of guide pins 32 are defined as the first, the second, the third, the fourth and the fifth from the first end, the middle to the last end. Specifically, the material taking mechanism 20 at the first end is the first material taking mechanism 20. The material taking mechanisms 20 in the middle are the second, the third and the fourth material taking mechanisms 20. The material taking mechanism 20 at the last end is the fifth material taking mechanism 20. Correspondingly, the connecting seat 21, the rotating shaft 22, the material taking assembly 23, the rotating member 24 and the variable distance member 25 are also defined as the first, the second, the third, the fourth and the fifth from the first end, the middle to the last end. It can be understood that in other embodiments, the number of the material taking mechanisms 20 and the number of the guide pins 32 can also be more or less. When the number of the material taking mechanisms 20 and the number of the guide pins 32 are more, only other material taking mechanisms 20 and the guide pins 32 are arranged at equal intervals on the guide plate 31 in sequence. When the number of the material taking mechanisms 20 and the number of the guide pins 32 are less, only other material taking mechanisms 20 and the guide pins 32 are reduced. The length of the guide plate 31 is adaptively arranged.

[0039] As Figure 2As shown, in the embodiment, the base 10 comprises a base plate 11, a variable-length guide rail 12 and a driving guide rail 13, the variable-length guide rail 12 and the driving guide rail 13 are arranged on the base plate 11 in a spaced manner, the length of the variable-length guide rail 12 is greater than the length of the driving guide rail 13, the connecting seat 21 of the material taking mechanism 20 at the first end and the middle part is slidingly arranged on the variable-length guide rail 12, the connecting seat 21 of the material taking mechanism 20 at the end is arranged on the variable-length guide rail 12 and fixedly connected with the base plate 11, the driving seat 42 is slidingly arranged on the driving guide rail 13, wherein the driving seat 42 is slidingly arranged on the driving guide rail 13 through the driving sliding block 44, and the driving member 41 is arranged on the base plate 11 through the assembly seat 45. Wherein, the base 10 further comprises a fixing block 14, the fixing block 14 is arranged at one end of the base plate 11 and connected with the connecting seat 21 of the material taking mechanism 20 at the end. In this way, the specific structure of the above-mentioned base 10 is arranged to realize the installation of the plurality of material taking mechanisms 20 and the driving mechanism 40.

[0040] As shown in the drawings, Figure 3 In the embodiment, each material taking assembly 23 is used to adapt to the adsorption of the workpiece 200. Specifically, each material taking assembly 23 comprises a base 232 and a plurality of suction accessories 234, the base 232 is connected with one end of the rotating shaft 22, i.e. the base 232 is connected with the lower end of the rotating shaft 22, the plurality of suction accessories 234 are arranged on the base 232 in a spaced manner, and the plurality of suction accessories 234 are used to adsorb the workpiece 200, wherein each suction accessory 234 is communicated with an external negative pressure device (not shown in the drawings), and each suction accessory 234 generates negative pressure under the action of the external negative pressure device to adsorb the workpiece 200. In this way, the specific structure of the above-mentioned material taking assembly 23 is arranged to enable the material taking assembly 23 to adsorb the workpiece 200.

[0041] The rotating member 24 comprises a rotating part 242 and a sector part 244. The rotating part 242 is connected to the two ends of the rotating shaft 22 respectively, i.e. the rotating part 242 is connected to the upper end of the rotating shaft 22, and the sector part 244 is connected to the rotating part 242 and arranged on the side of the guide plate 31 away from the connecting base 21. The sector part 244 has a circular arc guide surface 245 and a guide groove 246 connected to the circular arc guide surface 245. The guide groove 246 is arranged in the middle of the sector part 244, i.e. the guide groove 246 is arranged in the middle of the circular arc guide surface 245. Thus, when the driving part 41 drives the driving base 42 to move the guide pin 32 on the guide plate 31 towards the corresponding rotating member 24, the guide pin 32 first contacts the circular arc guide surface 245 of the sector part 244, so that the guide pin 32 can be smoothly guided to move into the guide groove 246. When the guide pin 32 moves into the corresponding guide groove 246, the guide pin 32 pushes the rotating member 24 to rotate during the process of being pulled by the driving part 41 and the guide plate 31, until the rotating member 24 rotates to a specified angle direction, and then the guide pin 32 is separated from the guide groove 246, so that the guide pin 32 is separated from the rotating member 24.

[0042] In order to realize the linkage connection between the adjacent variable distance members 25, in the embodiment, one end of the variable distance member 25 of the taking mechanism 20 is provided with a T-shaped buckle 252, and the other end is provided with a T-shaped opening groove 254 matched with the T-shaped buckle 252. The T-shaped buckle 252 and the T-shaped opening groove 254 are slidably connected between the adjacent two variable distance members 25 of the taking mechanism 20. Alternatively, the first end of the variable distance member 25 of the taking mechanism 20 is provided with a T-shaped opening groove 254, and the other end can not be provided with a T-shaped buckle 252. The structure of the variable distance member 25 at the end of the taking mechanism 20 can be the same as that of the variable distance member 25 at the middle part, so as to increase more taking mechanisms 20 according to the actual production situation. Thus, by arranging the specific structure of the variable distance member 25, the T-shaped buckle 252 can slide in the T-shaped opening groove 254 and move the variable distance member 25 after sliding a predetermined stroke, so as to realize the linkage connection between the adjacent variable distance members 25.

[0043] In order to stop the rotation of the rotating member 24, the first stopper 262 and the second stopper 264 are provided in the present embodiment. The first stopper 262 and the second stopper 264 are both in a cylindrical shape, and are arranged on the top of the connecting seat 21 and on both sides of the rotating shaft 22. The first stopper 262 and the second stopper 264 are used to abut against the sector 244 when the rotating member 24 rotates, so as to stop the rotation of the rotating member 24 and ensure that the rotating member 24 rotates to a specified angle direction. In this way, the first stopper 262 and the second stopper 264 are arranged to stop the rotation of the rotating member 24, ensure that the rotating member 24 rotates to a specified angle direction, and ensure the rotation accuracy of the multi-axis rotary lead varying device 100.

[0044] In order to position the rotating member 24, the connecting block 272, the first ball head plunger 274 and the second ball head plunger 276 are arranged in the present embodiment. The connecting block 272 is arranged on the upper side of the connecting seat 21 and on the side of the rotating shaft 22 away from the guide plate 31. The first ball head plunger 274 and the second ball head plunger 276 are arranged on the connecting block 272. The rotating member 24 has a ball groove (not shown in the figure) adapted to the first ball head plunger 274 and the second ball head plunger 276. The ball groove is inserted into the second ball head plunger 276 from the first ball head plunger 274 with the rotation of the rotating member 24, so as to position the rotating member 24. The rotating member 24 further comprises a positioning portion 248 connected to both ends of the rotating portion 242 connected with the sector 244. The side of the positioning portion 248 facing the connecting block 272 is provided with a ball groove. The first ball head plunger 274 and the second ball head plunger 276 are both composed of a spring, a ball head and the like. The first ball head plunger 274 and the second ball head plunger 276 are adapted to the ball groove. The ball head of the first ball head plunger 274 and the second ball head plunger 276 can be elastically inserted into the corresponding ball groove under the elastic force of the spring. In this way, the connecting block 272, the first ball head plunger 274, the second ball head plunger 276 and the positioning portion 248 are arranged to elastically position the rotating member 24 by inserting the first ball head plunger 274 or the second ball head plunger 276 into the ball groove of the positioning portion 248 when the rotating member 24 rotates, so as to ensure the rotation accuracy of the rotating member 24 and further ensure the rotation accuracy of the multi-axis rotary lead varying device 100.

[0045] In order to guide the guide plate 31, ensure the moving accuracy of the guide plate 31, in the embodiment, each taking mechanism 20 further comprises two guide pressure pieces 28, the two guide pressure pieces 28 are spaced apart, one of the guide pressure pieces 28 is arranged on the top of the connecting seat 21 and is divided into two sections by the rotating shaft 22, the other guide pressure piece 28 is arranged on the variable distance piece 25, the guide plate 31 is adapted and slidably arranged between the two guide pressure pieces 28, wherein the guide plate 31 and the two guide pressure pieces 28 can be adapted to be a sliding rail and sliding block structure to realize sliding connection. In this way, by arranging the above-mentioned guide pressure piece 28, the guide plate 31 is guided to ensure the moving accuracy of the guide plate 31.

[0046] In the embodiment, each taking mechanism 20 further comprises a connecting sliding block 29, the connecting sliding block 29 and the variable distance piece 25 are arranged on the two sides of the connecting seat 21, and the connecting sliding block 29 is slidably connected with the variable distance guide rail 12. In this way, by arranging the above-mentioned connecting sliding block 29, the connecting seat 21 is slidably connected to the variable distance guide rail 12.

[0047] As shown in Figure 2 , in the embodiment, the driving plate 43 is roughly T-shaped, the driving plate 43 is provided with a strip-shaped hole 432, the variable distance piece 25 of the first end taking mechanism 20 is provided with a push-pull pin 256 adapted to the strip-shaped hole 432 at one end connected with the driving plate 43, the push-pull pin 256 is inserted into the strip-shaped hole 432, so that the push-pull pin 256 is slidably connected with the strip-shaped hole 432, wherein the length of the strip-shaped hole 432 is roughly equal to the sliding stroke, and the length of the strip-shaped hole 432 is roughly 1 / 2 of the distance between the adjacent two guide pins 32. In this way, by arranging the above-mentioned strip-shaped hole 432 and push-pull pin 256, the driving plate 43 and the variable distance piece 25 are slidably and stoppably connected, the sliding between the driving plate 43 and the variable distance piece 25 is smooth, and the push-pull stability is strong.

[0048] In order to ensure the moving accuracy of the driving plate 43, in the embodiment, the variable distance piece 25 of the first end taking mechanism 20 is provided with two spaced-apart guide blocks 258 at one end connected with the driving plate 43, the two guide blocks 258 are spaced apart upward and downward, the push-pull pin 256 is arranged between the two guide blocks 258, and the driving plate 43 is adapted and slidably arranged between the two guide blocks 258, wherein the driving plate 43 and the two guide blocks 258 can be adapted to be a sliding rail and sliding block mechanism. In this way, by arranging the above-mentioned guide block 258, the moving accuracy of the driving plate 43 is ensured.

[0049] The multi-axis rotary variable distance device 100 provided by the embodiment of the application is used, please see Figure 1 , Figure 1The initial state of the five material taking mechanisms 20 is shown, in which the initial spacing between the five material taking mechanisms 20 is shown, and the distance between the first rotating piece 24 and the first guide pin 32, the distance between the second rotating piece 24 and the second guide pin 32, the distance between the third rotating piece 24 and the third guide pin 32, the distance between the fourth rotating piece 24 and the fourth guide pin 32, and the distance between the fifth rotating piece 24 and the fifth guide pin 32 are sequentially increased. The driving piece 41 drives the driving seat 42 to move away from the terminal material taking mechanism 20 along the X-axis direction, and the driving seat 42 drives the guide plate 31 and the driving plate 43 to move together, and the guide plate 31 drives the five guide pins 32 to move synchronously. At this time, the driving plate 43 is slidingly connected with the first distance changing piece 25 through the push-pull pin 256 and the strip-shaped hole 432. When the driving plate 43 slides on the first distance changing piece 25, the guide plate 31 drives the five guide pins 32 to move synchronously. Within the sliding stroke between the driving plate 43 and the first distance changing piece 25, the first guide pin 32 first contacts the arc guide surface 245 of the sector-shaped part 244 of the first rotating piece 24, so that the first guide pin 32 can be smoothly guided into the guide groove 246. When the first guide pin 32 moves to the corresponding guide groove 246, the first guide pin 32 pushes the first rotating piece 24 to rotate, and the first rotating piece 24 rotates to drive the first rotating shaft 22 to rotate, and the first material taking assembly 23 rotates with the first rotating shaft 22.

[0050] Please refer to Figure 4 the first state shown, and Figure 5 the second state shown, in the first state, the first material taking assembly 23 is rotated completely, the second material taking assembly 23 is in the rotating process, and the third material taking assembly 23 just starts to rotate; in the second state, the first material taking assembly 23 and the second material taking assembly 23 are rotated and distance changed completely, the third material taking assembly 23 and the fourth material taking assembly 23 are rotated completely but not distance changed, and the fifth material taking assembly 23 just starts to rotate.

[0051] In the process that the first material taking assembly 23 rotates with the first rotating shaft 22, the driving plate 43 and the first distance changing piece 25 are still in the sliding stroke, then the second guide pin 32 contacts the second rotating piece 24 and pushes the second rotating piece 24 to rotate, the second rotating piece 24 rotates to drive the second rotating shaft 22 to rotate, the second material taking assembly 23 rotates with the second rotating shaft 22, then the third guide pin 32 contacts the third rotating piece 24 and pushes the third rotating piece 24 to rotate, the third rotating piece 24 rotates to drive the third rotating shaft 22 to rotate, and the third material taking assembly 23 rotates with the third rotating shaft 22.

[0052] When the driving member 41 continues to drive the driving base 42 to move the guide plate 31 and the driving plate 43 along the X-axis direction away from the first end of the material taking mechanism 20, the first guide pin 32 gradually contacts and then pushes the first rotating member 24 to rotate, and after rotating to a specified angle direction, for example, 90°, the first guide pin 32 is separated from the first rotating member 24. Then, the fourth and fifth guide pins 32 gradually contact and push the corresponding rotating members 24 to rotate in turn. At the same time, when the third guide pin 32 contacts the third rotating member 24 and the second guide pin 32 pushes the second rotating member 24 to rotate, the sliding stroke between the driving plate 43 and the first variable distance member 25 ends, that is, the driving plate 43 also slides to the end on the first variable distance member 25.

[0053] When the driving member 41 continues to drive the driving base 42 to move the guide plate 31 and the driving plate 43 along the X-axis direction away from the first end of the material taking mechanism 20, the driving base 42 drives the driving plate 43 to move the first variable distance member 25 together away from the second variable distance member 25, so that the T-shaped opening slot 254 of the first variable distance member 25 moves away from the second variable distance member 25 along the X-axis direction, and the first variable distance member 25 moves relative to the second variable distance member 25, so that the distance between the first material taking mechanism 20 and the second material taking mechanism 20 changes from the initial distance to the preset distance.

[0054] When the distance between the first material taking mechanism 20 and the second material taking mechanism 20 becomes the preset distance, at this time, the second rotating member 24 rotates to a specified angle direction, when the fourth guide pin 32 contacts the fourth rotating member 24, the first variable distance member 25 pulls the second variable distance member 25 to move together, so that the T-shaped opening slot 254 of the second variable distance member 25 moves away from the third variable distance member 25 along the X-axis direction, and the second variable distance member 25 moves relative to the third variable distance member 25, so that the distance between the second material taking mechanism 20 and the third material taking mechanism 20 also changes from the initial distance to the preset distance, at this time, the third rotating member 24 rotates to a specified angle direction, and the third and fourth variable distance members 25 move, so that the distance between the five material taking mechanisms 20 is the preset distance, thereby realizing the rotation and variable distance of the five material taking mechanisms 20.

[0055] Please refer to Figure 6 The third state is shown, which is the state of the five material taking mechanisms 20 of the multi-axis rotating and variable distance device 100 after rotating and variable distance, wherein the distance between the adjacent two guide pins 32 is equal to the preset distance, when the distance between the five material taking mechanisms 20 is the preset distance, the distance between the rotating member 24 of each material taking mechanism 20 and the corresponding guide pin 32 is equal, and the fifth material taking mechanism 20 does not move.

[0056] When it is required to change the interval between the five material taking mechanisms 20 from the preset interval to the initial interval, the driving member 41 drives the driving seat 42 to move reversely, the five guide pins 32 synchronously contact the circular arc guide surface 245 of the corresponding sector 244 and move to the corresponding guide groove 246, when the five guide pins 32 move to the corresponding guide groove 246, the five guide pins 32 push the corresponding rotating member 24 to rotate reversely, when the five rotating members 24 all rotate reversely to the initial angle direction and all are separated from the corresponding guide pins 32, the T-shaped opening groove 254 of the first interval changing member 25 moves along the X-axis direction to the second interval changing member 25, so that the interval between the first material taking mechanism 20 and the second material taking mechanism 20 changes from the preset interval to the initial interval, then the first interval changing member 25 pushes the second interval changing member 25 to move reversely towards the third interval changing member 25, so that the interval between the second material taking mechanism 20 and the third material taking mechanism 20 changes from the preset interval to the initial interval, in this way, the third and fourth interval changing members 25 move reversely, so that the interval between the material taking mechanisms 20 changes from the preset interval to the initial interval, thereby realizing the reverse rotation and reverse interval changing of the five material taking mechanisms 20.

[0057] The multi-axis rotating and interval changing device 100 provided by the embodiment of the present application realizes multi-axis rotation and interval changing through the cooperative matching between the base 10, the plurality of material taking mechanisms 20, the guide mechanism 30 and the driving mechanism 40, the multi-axis rotating and interval changing device 100 adopts one driving member 41, which is beneficial to reduce the number of the driving member 41, thereby reducing the cost and failure rate of the multi-axis rotating and interval changing device 100, making the action of the multi-axis rotating and interval changing device 100 reliable, and the multi-axis rotating and interval changing device 100 is applied to workpiece transfer, which is beneficial to improve the transfer efficiency.

[0058] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and not limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced therein.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the present application.

Claims

1. A multi-axis rotary indexing device, characterized by, The utility model provides a kind of material taking mechanism, including: Base; Multiple material taking mechanisms, multiple the material taking mechanisms are sequentially arranged and sequentially linked from first end to end, each the material taking mechanism includes connecting seat, pivot, material taking component, rotating piece and variable distance piece, the opposite sides of connecting seat are connected with base, variable distance piece respectively;The one end of pivot is connected with material taking component, the other end of pivot is rotated and passes through connecting seat to be connected with rotating piece;Adjacent two variable distance pieces are linked, wherein, the connecting seat of first end and middle part material taking mechanism is slidably arranged on base, the connecting seat of end material taking mechanism is fixedly arranged on base; Guide mechanism, including guide plate and multiple guide pins, multiple connecting seats are spaced apart on the guide plate, multiple rotating pieces are spaced apart on one side of the guide plate, multiple guide pins are spaced apart on the guide plate and correspond to multiple rotating pieces; Driving mechanism, including driving piece, driving seat and driving plate, driving piece is arranged on one end of base, and driving plate is connected to the two sides of driving seat respectively, one end of guide plate is connected to the top of driving seat, driving plate is slidably connected with the variable distance piece of first end material taking mechanism, driving piece is connected with driving seat to drive guide plate to move, so that guide pin drives rotating piece to rotate, and driving plate on driving seat drives variable distance piece of first end material taking mechanism to move, in turn, to drive adjacent two variable distance pieces to move, so that the material taking components on adjacent two connecting seats move to equal interval preset interval with the movement of variable distance piece.

2. The multi-axis rotary indexing apparatus of claim 1, wherein, Each the material taking mechanism further includes first stopper and second stopper, first stopper and second stopper are spaced apart on the top of connecting seat and located on both sides of pivot, first stopper and second stopper are used to stop rotating piece when rotating.

3. The multi-axis rotary indexing apparatus of claim 1, wherein, Each the material taking mechanism further includes connecting block, first ball head plunger and second ball head plunger, connecting block is arranged on connecting seat, first ball head plunger and second ball head plunger are spaced apart on connecting block, rotating piece has ball groove adapted to first ball head plunger and second ball head plunger, ball groove is inserted into second ball head plunger from first ball head plunger to position rotating piece with the rotation of rotating piece.

4. The multi-axis rotary indexing apparatus of claim 1, wherein, Rotating piece includes rotating part and sector, rotating part and material taking component are connected to both ends of pivot respectively, sector is connected with rotating part and arranged on the side of guide plate away from connecting seat, sector has circular arc guide surface and guide groove connected with circular arc guide surface, guide pin is guided into guide groove from circular arc guide surface.

5. The poly-axial repositioning device of claim 1, wherein, One end of the variable distance part of the material taking mechanism is provided with a T-shaped buckle, and the other end of the variable distance part of the material taking mechanism is provided with a T-shaped open slot matched with the T-shaped buckle, wherein the variable distance parts of two adjacent material taking mechanisms are connected through the T-shaped buckle and the T-shaped open slot.

6. The multi-axis rotary indexing apparatus of claim 1, wherein, The driving plate is provided with a strip-shaped hole, and one end of the variable distance part of the first material taking mechanism connected with the driving plate is provided with a push-pull pin matched with the strip-shaped hole, and the push-pull pin is connected with the strip-shaped hole in sliding mode.

7. The multi-axis rotary indexing apparatus of claim 6, wherein, One end of the variable distance part of the first material taking mechanism connected with the driving plate is provided with two guide blocks arranged at intervals, and the push-pull pin is arranged between the two guide blocks, and the driving plate is arranged between the two guide blocks in matched and sliding mode.

8. The multi-axis rotary indexing apparatus of claim 1, wherein, The base comprises a base plate, a variable distance guide rail and a driving guide rail, the variable distance guide rail and the driving guide rail are arranged at intervals on the base plate, the connecting seat of the first and middle material taking mechanisms is arranged on the variable distance guide rail in sliding mode, the connecting seat of the last material taking mechanism is arranged on the variable distance guide rail and fixedly connected with the base plate, the driving seat is arranged on the driving guide rail in sliding mode, and the driving part is arranged on the base plate.

9. The poly-axial revolute mechanism of claim 1, wherein, Each material taking mechanism further comprises two pressure guide parts arranged at intervals, one of the two pressure guide parts is arranged on the connecting seat, and the other pressure guide part is arranged on the variable distance part, and the guide plate is arranged between the two pressure guide parts in matched and sliding mode.

10. The poly-axial revolute displacement device of claim 1, wherein, The material taking assembly comprises a base and a plurality of suction accessories, one end of the base is connected with the rotating shaft, the plurality of suction accessories are arranged at intervals on the base, and the plurality of suction accessories are used for adsorbing workpieces.

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