TWI812337B - Positioning mechanism - Google Patents

Abstract

A positioning mechanism comprises positioning wheels and positioning rails, the positioning wheel is formed with a first guide surface and a second guide surface connected to each other, the positioning rail is formed with a first positioning groove and a second positioning groove that are tangent to each other, the first positioning groove is formed on a groove edge of one side of the second positioning groove, the first guide surface is movably disposed on a groove edge of one side of the second positioning groove, with a position of the second guide surface being limited by a groove wall of the second positioning groove, the first and second guide surfaces are respectively engaged into the first and second positioning grooves for positioning. Thereby, a mechanical dual-positioning is achieved.

Description

positioning mechanism

The present invention relates to a positioning mechanism, in particular to a mechanical, dual-positioning positioning mechanism.

Under the influence of the global epidemic, digital transformation in all walks of life has become an irreversible trend. For example, the digital transformation in the machinery industry focuses on smart manufacturing. The main driver of smart manufacturing is industrial robots. On the production line, the use of industrial robots The demand for how to implement safety protection when humans and robots/robot arms work together is increasing day by day. Countries have also set standards for industrial robots.

According to the hazard prevention standards for industrial robots set by the government, when employers choose robots, they should take measures to avoid the following hazards: first, hazards caused by incorrect operation, wrong actions and malfunctions; second, hazards caused by abnormal power sources. The third is the harm caused by people and objects entering the movable range; the fourth is the harm caused by the failure of related machinery.

Therefore, in order to protect the safety of the operator, since it is impossible to freely enter and exit the robot's working area, a cabin is set up at the boundary of the robot's working area. This cabin is used as an intermediary between the material and the robot. The material required for robot processing Parts are transported to the cabin through an Automated Guided Vehicle (AGV) or an Overhead Crane. However, the aforementioned high construction costs add to the burden on small and medium-sized enterprises.

In addition, after the materials are transported to the cabin, the robot cannot know the direction of the materials, whether it is forward or reverse. Once the material is processed in the wrong direction, wrong processing results will definitely be obtained, causing processing errors and increasing processing costs. cost.

Therefore, when considering how to choose an effective construction cost to carry out material transportation, and how to complete positioning and reprocessing of materials before picking them up, the above problems have not yet been effectively solved.

The purpose of the present invention is to provide a positioning mechanism to solve the above difficulties mentioned in the prior art.

According to an embodiment of the present invention, a positioning mechanism is provided, which includes: a plurality of positioning wheels, the positioning wheels are arranged at intervals, and the positioning wheels form a first guide surface and a second guide surface that are connected to each other; and a plurality of positioning wheels. rails, the positioning rails are spaced apart, and the positioning rails are formed with a first positioning groove and a second positioning groove that intersect with each other. The first positioning groove is formed on one side of the second positioning groove. The positioning wheel pairs When the positioning rails are displaced, the first guide surfaces of the positioning wheels are movably located on one side of the second positioning grooves of the positioning rails, and the second guide surfaces are limited by the groove walls of the second positioning grooves. Under the position, the first guide surfaces of the positioning wheels snap into the first positioning grooves of the positioning rails and combine with each other to perform positioning, and the second guide surfaces snap into the second positioning grooves of the positioning rails and combine with each other. , perform positioning.

According to a second embodiment of the present invention, a positioning mechanism is provided, which includes: a positioning wheel formed with a first guide surface and a second guide surface connected to each other; and a positioning rail formed to intersect with each other. There is a first positioning groove and a second positioning groove. The first positioning groove is formed on the edge of one side of the second positioning groove. The positioning wheel corresponds to the displacement of the positioning rail. The first guide surface of the positioning wheel is movable. The second guide surface is provided on one side edge of the second positioning groove of the positioning rail, and the second guide surface is limited by the groove wall of the second positioning groove. When the position is lowered, the first guide surface of the positioning wheel snaps into the first positioning groove of the positioning rail to combine with each other to perform positioning, and the second guide surface snaps into the second positioning groove of the positioning rail to combine with each other to perform positioning. .

This provides mechanical dual positioning, assembly is positioning, simple and convenient, positioning is action, fast and correct.

The above description is only used to describe the problems to be solved by the present invention, the technical means to solve the problems, and the effects thereof. The specific details of the present invention will be introduced in detail in the following embodiments and related drawings.

[Invention]

10: Material conversion system

20: Material transportation platform

21: Frame

211: Department of force application

212, 213: Connector

22, 23: Carrier

220: carrier surface

24: Undertaken

241:First positioning piece

25: Acceptance

251: Second positioning piece

252: Positioning Department

30: Material and parts conversion platform

31:Cabin

311: Frame

312: Feed port

313: Material intake port

314:Extension board

315: Bootloader

3151:Roller

316: Sensor

40: Positioning mechanism

41: Positioning wheel

411: First guide surface

412: Second guide surface

4121:End

42: Positioning rail

421: First positioning ditch

422: Second positioning ditch

4221: Groove

Figure 1: Three-dimensional schematic diagram of the material conversion system of the present invention.

Figure 2: An exploded schematic diagram of the material conversion system of the present invention.

Figure 3: Exploded schematic diagram 2 of the material conversion system of the present invention.

Figure 4: Schematic diagram of the positioning mechanism of the material conversion system of the present invention.

Figure 5: Schematic diagram of the positioning mechanism of the material conversion system of the present invention.

Figure 6: A schematic diagram of the material conversion system combination and a cross-sectional view of the positioning mechanism combination of the present invention.

In order to enable you, the review committee, to have a further understanding of the present invention, the preferred embodiments are listed below along with the drawings, which are described in detail below: Please refer to Figures 1, 2 and 3. The present invention provides a material conversion system 10. It cooperates with robots, and there are many types of robots. The following explanation will take "industrial robots" as an example. Industrial robots are defined in accordance with ISO 8373: "Industrial robots are automatically controlled and can be updated and modified through programs. It is a fixed or mobile multi-purpose control device with variable behavior. Through program writing and updating, it can realize the motion control of robots on three or more axes to assist industrial automation applications. ”.

The material conversion system 10 includes a material transport platform 20, a material conversion platform 30 and a positioning mechanism 40. The material transport platform 20 can be a cart or a pallet, and is not limited to the two forms mentioned above. The premise is that it is driven by human power. Effectively reduce construction costs. The material transport platform 20 has an appearance similar to a rectangular body. The material transport platform 20 includes a frame 21 and a carrier 22 . The carrier 22 is used to carry materials (such as jigs), and the frame 21 is used to move the carrier 22 .

The frame body 21 is composed of a number of pipe fittings. A force applying part 211 is formed on the top of the frame body 21. The force applying part 211 is inclined to facilitate the operator to apply force.

The following describes how the frame 21 cooperates with different numbers of carriers 22: When the frame 21 cooperates with one carrier 22, the frame 21 is connected to a connecting part 212 on one side of the force applying part 211. This connecting part 212 is used to connect the carrier 22. . In addition, when the frame body 21 cooperates with the two carriers 22 and 23, the frame body 21 must be provided with two connecting parts 212 and 213 at intervals, usually one above the other and one at a distance. One of the connecting parts 212 is close to the force applying part 211, and the other one is close to the force applying part 211. A connecting part 213 is away from the force applying part 211, and the frame 21 connects the carriers 22 and 23 with the connecting parts 212 and 213, so that the two carriers 22 and 23 are spaced apart from each other by a working distance. This working distance allows the lower carrier 23 to carry materials. The required space is required to prevent the materials from colliding with the carrier 22 above. When the force applying part 211 receives force, the carrier 22 will be moved along with the connecting parts 212 and 213 . Moreover, the connecting portions 212 and 213 can be directly formed by the pipe, or other components can be assembled on the pipe.

The carrier 22 is provided with a carrying surface 220 on it. The carrying surface 220 is provided with two supporting trays 24 and 25. The appearance of the two supporting trays 24 and 25 is approximately rectangular. In addition, one of the supporting plates 24 is set as a non-movable type, and the other supporting plate 25 is set as a movable type. The movable type means that it will be displaced with the force under external force, and the non-movable type means that under external force, it will move. Will not shift with force. In addition, the two supporting trays 24 and 25 are arranged on top of each other, and the movable supporting tray 25 is located above the non-movable supporting tray 24.

One of the bearing plates 24 has a front face and a back face opposite to the front face. The bearing plate 24 is placed on the carrier 22 with its back surface. The bearing plate 24 has two sides locked on the carrier 22. After being locked, the bearing plate 24 is non-moving. formula state, so that the supporting plate 25 placed thereon can have a reference for positioning. In addition, the supporting plate 24 is provided with a plurality of first positioning parts 241 on the front. The first positioning parts 241 are approximately cylindrical in appearance. The number of the first positioning parts 241 is four, and they are spaced apart from each other on the front of the supporting plate 24 . , the interval setting can be equidistant or unequal.

Another bearing plate 25 also has a front face and a back face opposite to the front face. The bearing plate 25 is provided with a plurality of second positioning parts 251 on the front face. The appearance of the second positioning parts 251 is similar to a cylinder. The second positioning parts 251 are made of a number of There are four, and they are spaced apart from each other on the front surface of the bearing plate 25. The spaced arrangement can be equidistant or unequal. In addition, a positioning portion 252 is formed on the back of the bearing plate 25 corresponding to each first positioning member 241. This positioning portion 252 can penetrate the bearing plate 25. The shape of the positioning portion 252 is formed corresponding to the outline of the first positioning member 241 to ensure the positioning of the bearing plate 25. The portion 252 is relatively assembled with the first positioning member 241 of the bearing plate 24 to perform positioning.

The bearing plate 25 is used to carry the material (not shown). The material has a positioning portion (not shown) formed on the back corresponding to each second positioning member 251. The shape of the positioning portion corresponds to the contour of the second positioning member 251, so that The positioning part of the material is relatively assembled with the second positioning part 251 of the bearing plate 25 to perform positioning.

The material has a certain weight. When transferring the material to the holding tray 25, attention must be paid to the correct alignment of the second positioning member 251 of the holding tray 25 with the positioning portion of the material before assembly. As for whether the first and second positioning parts 241 and 251 are arranged relative to each other, the size of the material must be taken into consideration, which will affect the size of the distance between the first and second positioning parts 241 and 251. From the figure, the first positioning member and the second positioning member 241 and 251 are not arranged relative to each other, but this does not mean that the situation of relative arrangement will not occur.

The following describes how the carrier 22 cooperates with a movable tray 25. The carrier 22 must be provided with a structure that replaces the non-movable tray 24. The carrier 22 is provided with a plurality of third positioning members (not shown) on the carrying surface 220. The appearance of these third positioning members is similar to a cylinder. The number of the third positioning members is four, and they are spaced apart from each other on the carrying surface 220 of the carrier 22. , the spacing settings can be equidistant or unequal. If the height of the third positioning member is insufficient, the carrier 22 can be formed with a thickness on the loading surface 220, and this thickness can increase the height of the third positioning member. Alternatively, if the structural strength of the third positioning member allows, the third positioning member itself can increase the height. of. The third positioning member may be combined with the carrier 22 in a locking manner, or may be integrally formed with the carrier 22, provided that it must meet the requirement of being non-movable. Similarly, the shape of the positioning portion 252 of the supporting plate 25 corresponds to the contour of the third positioning member, so that the positioning portion 252 of the supporting plate 25 and the third positioning member of the carrier 22 are relatively assembled and positioned.

The material conversion platform 30 is a rectangular body. The material conversion platform 30 includes a cabin 31. The cabin 31 is composed of a plurality of frames 311 with a rectangular structure. The cabin 31 has a feed port 312 on one side through the frames 311. , the width of the feed port 312 is greater than the width of the carrier 22, so that the carrier 22 of the material transport platform 20 can enter and leave the cabin 31 through the feed port 312. The cabin 31 is equipped with a material intake port 313 through the frame 311 on the other side opposite to the material inlet 312, so that an industrial robot (not shown) that cooperates with the material conversion platform 30 can enter and leave the cabin 31 through the material intake port 313. .

Please refer to Figures 4, 5 and 6. The positioning mechanism 40 provides the material transport platform 20 and the material conversion platform 30 to perform mechanical double positioning. The positioning mechanism 40 includes a positioning wheel 41 and a positioning rail 42. The positioning wheel 41 is assembled on the material. On the transport platform 20, the positioning rail 42 is assembled on the material transfer platform 30. The positioning wheel 41 on the material transport platform 20 is displaced corresponding to the positioning rail 42 on the material transfer platform 30. Furthermore, the positioning wheel 41 and the positioning rail The number 42 is set correspondingly and operates with each other. The positioning wheel 41 is movably located on the positioning rail 42. The movable mode can be rolling or sliding, and the movable mode is along the direction of force application, where: The positioning wheels 41 are further assembled on the two side walls of the bearing plate 25 of the material transport platform 20. The positioning wheels 41 have an appearance similar to a cylinder. The positioning wheels 41 are axially formed with a first guide surface 411 with a smaller diameter and a larger diameter. The second guide surface 412 has the first guide surface 411 and the second guide surface 412 connected to each other. The first guide surface 411 is approximately straight-shaped in cross-section view, and the second guide surface 412 is approximately V-shaped in cross-sectional view. The number of positioning wheels 41 can be plural, that is, two or more. Considering whether the bearing plate 25 can maintain the level, when the number of positioning wheels 41 is an odd number (for example, the number is three), they should be set at staggered intervals with each other, and the number is an even number. (for example, the number is four), they are set at intervals relative to each other. As can be seen from the figure, the embodiment is explained with four positioning wheels 41, two of which are arranged on the opposite side walls in front of the bearing plate 25, and the other two are arranged on the opposite side walls of the rear of the bearing plate 25, and the front and rear positions are The wheels 41 are at a working distance from each other.

The number of positioning rails 42 corresponding to the positioning wheels 41 can be plural, that is, more than two (inclusive). The positioning rails 42 corresponding to the positioning wheels 41 are further assembled on the two side frames 311 in the cabin 31 of the material conversion platform 30. The positioning rail 42 has an appearance similar to a rectangular body. The positioning rail 42 is formed with first and second positioning grooves 421 and 422 adjacent to each other on one side wall. The first and second positioning grooves 421 and 422 intersect with each other, or intersect with each other or are perpendicular to each other. The first and second positioning grooves 421 and 422 are approximately V-shaped in cross-section. The first and second positioning grooves 421 and 422 are formed with tapered groove walls on both sides. The contraction is from wide to narrow, with the top of the ditch being wide and the bottom of the ditch being narrow.

The above description is based on the plurality of positioning wheels 41 and the plurality of positioning rails 42 cooperating with the material transport platform 20 and the material conversion platform 30. It can also be used without cooperating with the material transport platform 20 and the material conversion platform 30. One positioning wheel 41 and one positioning rail 42 are arranged correspondingly and act with each other, or only a plurality of positioning wheels 41 and a plurality of positioning rails 42 are arranged correspondingly and act with each other.

The first positioning groove 421 is formed on the edge of one side of the second positioning groove 422 and is cut down to the groove wall. The first positioning groove 421 and the second positioning groove 422 share the groove edge with each other. Certainly The walls of the positioning grooves 421 and 422 are adjacent to each other and connected to each other. The depth of the first positioning groove 421 is smaller than the depth of the second positioning groove 422. The shallower depth of the first positioning groove 421 cooperates with the smaller diameter of the first guide surface 411. , the second positioning groove 422 with a deeper depth cooperates with the second guide surface 412 with a larger diameter. The second positioning groove 422 is further formed with a groove 4221 at the bottom of the groove. The groove 4221 is approximately U-shaped in cross-section, and the groove edges on both sides of the groove 4221 are connected to the groove walls on both sides of the second positioning groove 422 respectively.

It should be noted that before the positioning wheel 41 and the positioning rail 42 are positioned with each other, when the positioning wheel 41 is assembled, the first guide surface 411 of the positioning wheel 41 needs to be close to the side wall of the bearing plate 25, and the second guide surface 412 needs to be away from the bearing plate. The side wall of the plate 25. When assembling the positioning rail 42, the second positioning groove 422 of the positioning rail 42 needs to be close to the side wall of the cabin 31, and the first positioning groove 421 needs to be away from the side wall of the cabin 31.

The operation description of the material transport platform 20 and the material conversion platform 30 is as follows: First, the carrier 22 of the material transport platform 20 enters the cabin 31 from the feed port 312, and the positioning wheels 41 on both sides of the bearing plate 25 correspond to the two side frames. The positioning rail 42 of 311 advances until the positioning wheel 41 and the positioning rail 42 offset each other to perform positioning.

Then, the first guide surface 411 of the positioning wheel 41 is movably disposed on the edge of one side of the second positioning groove 422 of the positioning rail 42, and the second guide surface 412 is limited by the groove wall of the second positioning groove 422. Until the first guide surface 411 of the positioning wheel 41 snaps into the first positioning groove 421 of the positioning rail 42 and combines with each other to perform positioning, and the second guide surface 412 snaps into the second positioning groove 422 of the positioning rail 42 and combines with each other to perform positioning. The material itself has a certain weight, and the bearing plate 25 transmits this weight downward, so that the positioning wheel 41 and the positioning rail 42 are more closely combined and positioned accurately. This provides mechanical dual positioning. Assembly means positioning, which is simple and convenient. Positioning means action, which is fast and correct. It allows industrial robots to quickly obtain material positioning information, allowing industrial robots to respond quickly to clamp materials, preventing processing errors and reducing costs. Processing costs.

Since the outer diameter of the first guide surface 411 is smaller than the outer diameter of the second guide surface 412, when the first guide surface 411 of the positioning wheel 41 moves on the positioning rail 42, the second guide surface 412 will be affected by the force of the second positioning groove 422. ditch wall limit position to prevent the positioning wheel 41 from being excessively offset and causing the supporting plate 25 and the materials on it to slide down. In order to make the second guide surface 412 and the second positioning groove 422 more closely combined, the groove 4221 of the second positioning groove 422 provides the second guide surface 412 of the positioning wheel 41 to accommodate, and the second guide surface 412 further has an angled end. 4121 is accommodated in the groove 4221 of the second positioning groove 422.

Finally, after the positioning wheel 41 and the positioning rail 42 are positioned with each other, the first guide surface 411 of the positioning wheel 41 is away from the side wall of the cabin 31 and the second guide surface 412 is close to the side wall of the cabin 31 . The second positioning groove 422 of the positioning rail 42 is away from the side wall of the bearing plate 25 , and the first positioning groove 421 is close to the side wall of the bearing plate 25 .

Please refer to Figure 3. The material conversion platform 30 further includes two extension plates 314. The distance between the positioning rails 42 corresponds to the distance between the positioning wheels 41 on both sides of the bearing plate 25. The positioning rails 42 are assembled. The extension plate 314 is provided on one side, and the other side of the extension plate 314 is assembled on the two side frames 311 in the cabin 31 . In this way, the positioning rail 42 can be matched with the positioning wheel 41 by adjusting the extension plate 314 .

Please refer to FIG. 3 , the material conversion platform 30 further includes two guides 315 . The guides 315 are assembled on the two side frames 311 of the cabin 31 corresponding to the carrier 22 , and the guides 315 are assembled below the positioning rail 42 . Each guide 315 is composed of a number of rollers 3151 arranged at intervals, so that when the carrier 22 enters the cabin 31, the guides 315 on both sides of the cabin 31 abut against the two side walls of the carrier 22 in a rolling manner, and the carrier 22 is in Under the guidance of the guide 315, the positioning wheel 41 and the positioning rail 42 are quickly aligned and positioned.

Please refer to FIG. 3 . The material conversion platform 30 further includes a sensor 316 . This sensor 316 corresponds to the side frame 311 of the material assembly in the cabin 31 and is used to detect whether the material has been transported in place. The positioning is completed. At this time, the industrial robot quickly obtains the positioning information of the material through the sensor 316, so that the industrial robot can quickly respond to clamp the material and execute the next process.

To sum up, the present invention provides a material conversion system 10, which is movably disposed on one side of the second positioning groove 422 of the positioning rail 42 through the first guide surface 411 of the positioning wheel 41 of the positioning mechanism 40. until the first guide surface 411 of the positioning wheel 41 snaps into the first positioning groove 421 of the positioning rail 42 and is positioned, and the second guide surface 412 snaps into the second positioning groove 422 of the positioning rail 42 for positioning. This provides mechanical and dual positioning. Assembly means positioning, which is simple and convenient. Positioning means action, which is fast and correct. It allows industrial robots to quickly obtain material positioning information, allowing industrial robots to respond quickly to clamp materials and prevent processing errors. , reduce processing costs.

Finally, the above disclosed embodiments are not intended to limit the present invention. Anyone skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present invention, and all of them are protected by the present invention. Inventing. Therefore, the protection scope of the present invention shall be determined by the appended patent application scope.

20: Material transportation platform

220: carrier surface

24: Undertaken

241:First positioning piece

25: Acceptance

251: Second positioning piece

252: Positioning Department

30: Material and parts conversion platform

31:Cabin

311: Frame

316: Sensor

40: Positioning mechanism

41: Positioning wheel

411: First guide surface

412: Second guide surface

4121:End

42: Positioning rail

421: First positioning ditch

422: Second positioning ditch

4221: Groove

Claims (10)

A positioning mechanism, which includes: a plurality of positioning wheels (41). The positioning wheels (41) are arranged at intervals. The positioning wheels (41) form a first guide surface and a second guide surface (411, 412) that are connected to each other. ); and a plurality of positioning rails (42), which are arranged at intervals, and the positioning rails (42) are formed with a first positioning groove and a second positioning groove (421, 422) that intersect with each other. A positioning groove (421) is formed on one side edge of the second positioning groove (422). The positioning wheels (41) displace correspondingly to the positioning rails (42). The first guide surfaces of the positioning wheels (41) (411) is movably provided on one side of the second positioning groove (422) of the positioning rails (42), and the second guide surface (412) is limited on the groove wall of the second positioning groove (422) Down, the first guide surfaces (411) of the positioning wheels (41) snap into the first positioning grooves (421) of the positioning rails (42) and combine with each other to perform positioning. The second guide surfaces (412) The second positioning grooves (422) snapped into the positioning rails (42) are combined with each other to perform positioning. The positioning mechanism of claim 1, wherein the positioning wheels (41) are staggered or arranged at relative intervals, the positioning rails (42) are staggered or arranged at relative intervals, and the second positioning groove (422) is further at the bottom of the groove. A groove (4221) is formed, two side groove edges of the groove (4221) are respectively connected to the groove wall, and the groove (4221) of the second positioning groove (422) accommodates the positioning wheels (41). One end (4121) of the second guide surface (412), the outer diameter of the first guide surface (411) is smaller than the outer diameter of the second guide surface (412), and the depth of the first positioning groove (421) is smaller than the outer diameter of the second guide surface (412). The depth of the second positioning groove (422), the first positioning groove and the second positioning groove (421, 422) share a groove edge with each other, and the groove walls of the first positioning groove and the second positioning groove (421, 422) are mutually Adjacent and connected to each other. The positioning mechanism as described in claim 1, wherein the positioning mechanism (40) cooperates with a material conversion system (10), and the material conversion system (10) includes: a material transport platform (20), which It includes a supporting plate (25), which is used to carry a material; and a material conversion platform (30), which includes a cabin (31), and the cabin (31) is provided with a feed The opening (312), the supporting plate (25) enters and exits the cabin (31) through the inlet (312), and the positioning wheels (41) of the positioning mechanism (40) are respectively assembled on the supporting plate (25), the positioning rails (42) are arranged on both sides of the cabin (31) corresponding to the positioning wheels (41), and the positioning wheels (41) on both sides of the bearing plate (25) Corresponding to the displacement of the positioning rails (42) on both sides of the cabin (31). The positioning mechanism as described in claim 3, wherein the material transport platform (20) includes a frame (21) and a carrier (22), the frame (21) is used to move the carrier (22), and the The frame body (21) is composed of several pipe fittings. The frame body (21) is formed with a force applying part (211). The frame body (21) is connected with a connecting part (212) on one side of the force applying part (211). The connecting part (212) is connected to the carrier (22), and when the force applying part (211) receives force, the carrier (22) is moved along with the connecting part (212). The positioning mechanism as described in claim 4, wherein the carrier (22) of the material transport platform (20) enters and exits the cabin (31) through the inlet (312), and the cabin (31) It is composed of several frames (311). The cabin (31) has the feed inlet (312) erected through the frames (311) on one side. The cabin (31) is opposite to the feed inlet (312). ) is set up on the other side of the frame (311) with a material inlet (313), and an industrial robot that cooperates with the material conversion platform (30) enters and exits the cabin (31) through the material inlet (313). ). The positioning mechanism as described in claim 5, wherein the carrier (22) is provided with a carrying surface (220) on which a bearing plate (24) and the bearing plate (25) are assembled, and the bearing plates (24, 25) placed on top of each other, the The tray (25) is located above the tray (24). The tray (24) has a front face and a back surface opposite the front side. The tray (24) is placed on the carrier (22) with the back side. The tray (24) (24) The lock is provided on the carrier (22). The bearing plate (24) is equipped with a plurality of first positioning parts (241) on the front side. The first positioning parts (241) are spaced apart from each other on the bearing plate. On the front of (24), the bearing plate (25) has a front face and a back face opposite to the front face. The bearing plate (25) is equipped with a plurality of second positioning parts (251) on the front face. These second positioning parts (251) are The pieces (251) are spaced apart from each other on the front side of the bearing plate (25). The bearing plate (25) has a plurality of positioning portions (252) formed on the back side corresponding to the first positioning pieces (241). The shape of the portion (252) corresponds to the contour of the first positioning parts (241). The positioning portions (252) of the supporting plate (25) and the first positioning parts (241) of the supporting plate (24) Relatively assembled, the material piece is formed with a plurality of positioning parts corresponding to the second positioning parts (251) of the bearing plate (25), and the shapes of the positioning parts are formed corresponding to the contours of the second positioning parts (251). The positioning parts of the material are assembled opposite to the second positioning parts (251) of the supporting plate (25). The positioning mechanism as described in claim 5, wherein the carrier (22) is provided with a carrying surface (220) on which the bearing plate (25) is assembled, and the carrier (22) is provided with a plurality of The third positioning members are spaced apart from each other on the carrying surface (220) of the carrier (22). The bearing plate (25) has a front face and a back face opposite to the front face. The bearing plate (25) has a front face and a back face opposite to the front face. 25) A plurality of second positioning parts (251) are assembled on the front side. The second positioning parts (251) are spaced apart from each other on the front side of the supporting plate (25). The supporting plate (25) is on the back side. A plurality of positioning portions (252) are formed corresponding to the third positioning members of the carrier (22), and the shapes of the positioning portions (252) are formed corresponding to the contours of the third positioning members. The positioning portions (252) of the bearing plate (25) are The positioning part (252) is assembled opposite to the third positioning parts of the carrier (22), and the material part corresponds to the second positioning parts of the bearing plate (25). The positioning part (251) is formed with a plurality of positioning parts, and the shapes of the positioning parts are formed corresponding to the contours of the second positioning parts (251). The positioning parts of the material part are in contact with the second positioning parts of the bearing plate (25). The positioning parts (251) are relatively assembled. The positioning mechanism according to claim 6 or 7, wherein the material transfer platform (30) further includes two extension plates (314), and the positioning rails (42) are arranged on one side of the two extension plates (314) The other side of the two extension plates (314) is assembled on the two sides of the frames (311) in the cabin (31). The material conversion platform (30) further includes two guides (315). Two guides (315) are arranged on the two sides of the frames (311) in the cabin (31) corresponding to the carrier (22). The two guides (315) are composed of a number of rollers (3151). The rollers (3151) are spaced apart from each other, the two guides (315) on both sides of the cabin (31) offset the two sides of the carrier (22), and the material conversion platform (30) further includes a sensor ( 316), the sensor (316) corresponds to the frame (311) on one side of the cabin (31) where the material is assembled. A positioning mechanism, which includes: a positioning wheel (41) formed with a first guide surface and a second guide surface (411, 412) connected to each other; and a positioning rail (42). The positioning rail (42) is formed with a first positioning groove and a second positioning groove (421, 422) that intersect with each other. The first positioning groove (421) is formed on one side edge of the second positioning groove (422). The wheel (41) displaces correspondingly to the positioning rail (42), and the first guide surface (411) of the positioning wheel (41) is movably located on one side of the second positioning groove (422) of the positioning rail (42). The second guide surface (412) is limited by the groove wall of the second positioning groove (422), and the first guide surface (411) of the positioning wheel (41) snaps into the positioning rail (42). The first positioning groove (421) is This combination performs positioning, and the second guide surface (412) snaps into the second positioning groove (422) of the positioning rail (42) and combines with each other to perform positioning. The positioning mechanism according to claim 9, wherein the second positioning groove (422) further forms a groove (4221) at the bottom of the groove, and the two side groove edges of the groove (4221) are respectively connected to the groove wall, and the second positioning groove (422) is further formed with a groove (4221) at the bottom of the groove (4221). The groove (4221) of the two positioning grooves (422) accommodates one end (4121) of the second guide surface (412) of the positioning wheel (41), and the outer diameter of the first guide surface (411) is smaller than the The outer diameter of the second guide surface (412), the depth of the first positioning groove (421) is smaller than the depth of the second positioning groove (422), and the first positioning groove and the second positioning groove (421, 422) are mutually exclusive. Sharing groove edges, the first positioning groove and the second positioning groove (421, 422) have groove walls adjacent to each other and connected to each other.

Images