A temporary storage rack for connecting manual trolleys and AGV trolleys

Abstract

The present invention provides a temporary storage rack, comprising a rack body, a connecting rod mechanism, a guide bar, a positioning pin, a front limit rod and a rear guide wheel. The connecting rod mechanism is used to control the lifting and lowering of the positioning pin and the front limit rod, and the lifting and lowering positioning pin and the front limit rod are used to position the PCB carrier. When the AGV trolley places the PCB carrier into the edge bin, the connecting rod mechanism will not be triggered. At this time, the positioning pin and the front limit rod are both in the raised state. The AGV trolley directly puts down the PCB carrier and relies on the positioning pin, the rear guide wheel, the guide bars on both sides and the front limit rod to guide the falling PCB carrier. When a manual trolley is pushed close to the temporary storage rack, the connecting rod mechanism can be triggered, and the employee steps on the trolley foot brake to ensure that the connecting rod mechanism is always in the triggered state; at this time, the positioning pin and the front limit rod are both in the lowered state, and the employee can push / pull the PCB carrier into / out of the temporary storage rack. It can be seen that the temporary storage rack of the present invention can be docked with both the AGV trolley and the manual trolley.

Description

Technical Field

[0001] The invention belongs to the field of temporary storage devices for PCB boards, and in particular relates to a temporary storage rack for connecting a manual trolley and an AGV trolley. Background Art

[0002] In the past, PCBs were typically transported between production processes using manual carts, and temporary racks for storing PCB carriers simply docked with these carts. With the rise of smart manufacturing, automated guided vehicle (AGV) carts have also become increasingly popular, but their temporary racks for storing PCB carriers can only dock with AGVs. Even in intelligent PCB production rooms, occasional exceptions still require manual handling of PCB storage anomalies. However, the existing temporary racks for AGVs are cumbersome to manually handle, necessitating the development of a new type of temporary rack that can dock with both AGVs and manual carts. Summary of the Invention

[0003] The purpose of the present invention is to provide a temporary storage rack for docking a manual trolley and an AGV trolley, which can solve the problem that the existing temporary storage rack can only dock a single PCB transport vehicle and is difficult to handle when encountering occasional abnormalities.

[0004] The present invention is achieved as follows: a temporary storage rack for docking a manual trolley and an AGV trolley, comprising a rack body, a connecting rod mechanism, a guide bar, a positioning pin, a front limit rod and a rear guide wheel;

[0005] The frame body is provided with a side wire bin, the front end of which is an open end; a supporting platform is provided on both sides of the top of the side wire bin, and limiting holes and positioning holes are reserved on the supporting platform and distributed at intervals in the front and back directions, the front limiting rod is located in the limiting hole, and the positioning pin is located in the positioning hole; the guide bar is located at the outer edge of the supporting platform, and the rear guide wheel is installed on the supporting platform and is located at the end away from the open end;

[0006] The connecting rod mechanism includes a movable rod, a front fixing member, a front connecting rod, a rear fixing member, a rear connecting rod and a return spring; the front fixing member and the rear fixing member are fixed to the frame body at intervals in front and back, the movable rod is movably arranged in the front fixing member and the rear fixing member, and the length direction of the movable rod is parallel to the length direction of the supporting platform; the return spring is always in a compressed state and maintains a thrust on the movable rod toward the open end; the front end of the movable rod protrudes out of the open end;

[0007] The bottom end of the positioning pin is hinged to the top end of the front connecting rod, the bottom end of the front connecting rod is hinged to the movable rod, the bottom end of the front limit rod is hinged to the top end of the rear connecting rod, and the bottom end of the rear connecting rod is hinged to the movable rod; when there is no external force, the positioning pin and the front limit rod are both perpendicular to the movable rod, and the positioning pin and the front limit rod remain in a state of protruding out of the surface of the supporting platform; when the front end of the movable rod is subjected to a thrust, the front connecting rod and the rear connecting rod can respectively pull the positioning pin and the front limit rod down to a position below the surface of the supporting platform.

[0008] Furthermore, the temporary storage rack also includes a plurality of universal support wheels, and the plurality of universal support wheels are distributed on the supporting platform in a dot matrix.

[0009] Furthermore, the front fixing member and the rear fixing member are both hollow bearings.

[0010] Furthermore, a return spring limiter is fixed on the movable rod, and the return spring is clamped between the return spring limiter and the front fixing member and / or the rear fixing member.

[0011] Furthermore, one end of the return spring is fixed to the frame, and the other end abuts against the end of the movable rod away from the open end.

[0012] Furthermore, a limiting block for preventing the movable rod from retracting into the rear fixing member is fixed to one end of the movable rod away from the open end.

[0013] Furthermore, a rear buffer pad is provided on a side of the limiting block facing the open end; or a rear buffer pad is provided on a side of the rear fixing member facing the limiting block.

[0014] Furthermore, a positioning step is provided at the top end of the front limiting rod.

[0015] Furthermore, the bottom end of the positioning pin is hinged to the top end of the front connecting rod through a connecting pin or a screw, the bottom end of the front connecting rod is hinged to the movable rod through a connecting pin or a screw, the bottom end of the front limiting rod is hinged to the top end of the rear connecting rod through a connecting pin or a screw, and the bottom end of the rear connecting rod is hinged to the movable rod through a connecting pin or a screw.

[0016] Furthermore, the movable rod is provided with a front mounting groove and a rear mounting groove spaced apart from each other in the front and rear directions. The bottom end of the front connecting rod is hinged to the groove wall of the front mounting groove, and the bottom end of the rear connecting rod is hinged to the groove wall of the rear mounting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The temporary storage rack of the present invention is provided with a connecting rod mechanism for controlling the lifting and lowering of the positioning pin and the front limit rod. The liftable positioning pin and the front limit rod are used to position the PCB carrier; the supporting platforms on both sides of the temporary storage rack are installed with guide bars, which can play a guiding role when the PCB carrier is manually pushed in.

[0019] When the AGV places the PCB carrier into the edge bin, the linkage mechanism is not triggered. At this time, the positioning pin and the front limit rod are both in the raised state. The AGV directly lowers the PCB carrier and relies on the positioning pin, rear guide wheel, two side guide strips and front limit rod to guide the falling PCB carrier.

[0020] When the manual trolley is pushed close to the temporary storage rack, a thrust can be applied to the movable rod to trigger the linkage mechanism. The employee then steps on the trolley's foot brake to ensure that the linkage mechanism is always in the triggered state. At this time, the positioning pin and the front limit rod are both in the lowered state, and the employee can push / pull the PCB carrier into / out of the temporary storage rack.

[0021] It can be seen that the temporary storage rack of the present invention can be docked with both AGV carts and manual trolleys, thus solving the problem that the existing temporary storage rack can only be docked with a single PCB transport vehicle, which makes it difficult to handle occasional abnormalities. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a temporary storage rack for docking a manual trolley and an AGV trolley provided by an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Schematic diagram of the connecting rod mechanism of the temporary storage rack in the non-touch state;

[0024] Figure 3 yes Figure 1 Schematic diagram of the connecting rod mechanism of the temporary storage rack in the contact state;

[0025] Figure 4 Schematic diagram of another method for installing a return spring provided in this embodiment;

[0026] Figure 5 This is a schematic diagram of the temporary storage rack docking with the AGV trolley in this embodiment;

[0027] Figure 6 Schematic diagram of the temporary storage rack docking with the manual trolley in this embodiment. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a communication between the internal parts of the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Please see Figure 1 , showing a temporary storage rack 100 for docking a manual trolley and an AGV trolley provided in this embodiment, including a frame body 1, a connecting rod mechanism 2, a guide bar 3, a positioning pin 4, a front limit rod 5, a rear guide wheel 6 and a plurality of universal support wheels 7.

[0031] The frame 1 contains a wire bin 10 with an open front end. A support platform 11 is located on either side of the top of the bin 10. The support platform 11 has retaining holes 111 and positioning holes 112 spaced apart from each other. A front retaining rod 5 is located within the retaining hole 111, and a positioning step 51 is provided at the top of the front retaining rod 5. A positioning pin 4 is located within the positioning hole 112. A guide bar 3 is located at the outer edge of the support platform 11, and a rear guide wheel 6 is mounted on the support platform 11, at the end away from the open end.

[0032] A plurality of universal support wheels 7 are distributed in a dot matrix on the supporting platform 11. When docking with a manual cart, the universal support wheels 7 can make the PCB carrier on the manual cart slide more smoothly.

[0033] The connecting rod mechanism 2 has two states: triggered and untriggered. The connecting rod mechanism 2 includes a movable rod 21 , a front fixing member 22 , a front connecting rod 23 , a rear fixing member 24 , a rear connecting rod 25 and a return spring 26 .

[0034] Front and rear fixing members 22, 24 are fixed to frame 1 at intervals. A movable rod 21 is movably disposed between these two fixing members. The length of the movable rod 21 is parallel to the length of the support platform 11. A return spring 26 is always compressed and maintains a thrust force on the movable rod 21 toward the open end. The front end of the movable rod 21 protrudes out of the open end to facilitate activation by a manual trolley.

[0035] The movable rod 21 is provided with front and rear mounting slots spaced apart from each other. The bottom end of the positioning pin 4 is hinged to the top end of the front connecting rod 23 via a connecting pin 27. The bottom end of the front connecting rod 23 is hinged to the wall of the front mounting slot of the movable rod 21 via a connecting pin 27. The bottom end of the front limiting rod 5 is hinged to the top end of the rear connecting rod 25 via a connecting pin 27. The bottom end of the rear connecting rod 25 is hinged to the wall of the rear mounting slot of the movable rod 21 via a connecting pin 27. In actual application, in addition to using the connecting pin 27, screws or other connecting parts can also be used to achieve hinged connection. In addition, the front and rear mounting slots on the movable rod 21 are not necessary. The movable rod 21 can be provided with a connecting end or a connecting hole can be directly provided to achieve hinged connection between the movable rod 21 and the front and rear connecting rods 23 and 25.

[0036] For details, please see Figure 2 and Figure 3 In this embodiment, both the front fixing member 22 and the rear fixing member 24 are hollow bearings. A return spring stopper 28 is fixed to the movable rod 2 in front of the front fixing member 22, with the return spring 26 sandwiched between the return spring stopper 28 and the front fixing member 22. Alternatively, a return spring stopper 28 can be fixed to the movable rod 21 in front of the rear fixing member 24, with the return spring 26 sandwiched between the return spring stopper 28 and the rear fixing member 24 (not shown). Furthermore, to increase the return force, two return spring stoppers 26 can be provided at intervals. In this case, two return springs 26 can be provided at intervals in front and behind (not shown).

[0037] A limit block 29 is fixed to the end of the movable rod 21 away from the open end to prevent the movable rod 21 from retracting into the rear fixing piece 24. The diameter of the limit block 29 is larger than the aperture of the inner hole of the rear fixing piece 24, thereby preventing the movable rod 21 from retracting into the rear fixing piece 24 and causing the movable rod 21 to fall off.

[0038] A rear buffer pad 2 a is provided on a side of the limiting block 29 facing the open end; or a rear buffer pad 2 a is provided on a side of the rear fixing member 24 facing the limiting block 29 .

[0039] In addition to being mounted on the movable rod 21, the return spring 26 Figure 4 The return spring 26 can also be arranged at a position behind the movable rod 21, that is, one end of the return spring 26 is fixed to the frame 1, and the other end abuts against the end of the movable rod 21 away from the open end.

[0040] Please see again Figure 2 When there is no external force, the connecting rod mechanism 2 is in an untriggered state. At this time, the positioning pin 4 and the front limit rod 5 are both perpendicular to the movable rod 21, and the positioning pin 4 and the front limit rod 5 remain in a state of protruding from the surface of the supporting platform 11.

[0041] Please see again Figure 3 When the front end of the movable rod 21 is pushed, the connecting rod mechanism 2 is in a triggered state. At this time, the front connecting rod 23 and the rear connecting rod 25 can respectively pull the positioning pin 4 and the front limit rod 5 down to a position below the surface of the supporting platform 11.

[0042] The temporary storage rack 100 of this embodiment can control the raising and lowering of the positioning pin 4 and the front limit rod 5 through the connecting rod mechanism 2. The lifting and lowering positioning pin 4 and the front limit rod 5 can be used to position the PCB carrier. At the same time, the supporting platforms 11 on both sides of the temporary storage rack 1 are installed with guide bars 3, which can play a guiding role when manually pushing the PCB carrier.

[0043] Please see Figure 5 When the AGV trolley 200 places the PCB carrier 300 into the edge bin 10, the connecting rod mechanism 2 will not be triggered. At this time, the positioning pin 4 and the front limit rod 5 are both in the raised state. The AGV trolley 200 directly puts the PCB carrier 300 down and relies on the positioning pin 4, the rear guide wheel 6, the guide bars 3 on both sides and the front limit rod 5 to guide the falling PCB carrier 300.

[0044] Please see Figure 6 When the manual trolley 400 is pushed close to the temporary storage rack 100, the manual trolley 400 contacts the front end of the movable rod 21 and pushes the movable rod 21 to slide toward the inside of the temporary storage rack 100. When the movable rod 2 slides, the connecting rod mechanism 2 is triggered, and the worker steps on the foot brake of the manual trolley 400 to ensure that the connecting rod mechanism 2 is always in the triggered state; at this time, the positioning pin 4 and the front limit rod 5 are both in the lowered state, and the employee can push / pull the PCB carrier 300 into / out of the temporary storage rack 100.

[0045] It can be seen that the temporary storage rack 100 of this embodiment can be docked with both the AGV trolley 200 and the manual trolley 400. This solves the problem that the existing temporary storage rack can only be docked with a single PCB transport vehicle, which makes it difficult to handle occasional abnormalities.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temporary storage rack for docking manual trolleys and AGV trolleys, characterized in that: It includes a frame, a connecting rod mechanism, a guide bar, a positioning pin, a front limit rod and a rear guide wheel; The frame body is provided with a side wire bin, the front end of which is an open end; a supporting platform is provided on both sides of the top of the side wire bin, and limiting holes and positioning holes are reserved on the supporting platform and distributed at intervals in the front and back directions, the front limiting rod is located in the limiting hole, and the positioning pin is located in the positioning hole; the guide bar is located at the outer edge of the supporting platform, and the rear guide wheel is installed on the supporting platform and is located at the end away from the open end; The connecting rod mechanism includes a movable rod, a front fixing member, a front connecting rod, a rear fixing member, a rear connecting rod and a return spring; the front fixing member and the rear fixing member are fixed to the frame body at intervals in front and back, the movable rod is movably arranged in the front fixing member and the rear fixing member, and the length direction of the movable rod is parallel to the length direction of the supporting platform; the return spring is always in a compressed state and maintains a thrust on the movable rod toward the open end; the front end of the movable rod protrudes out of the open end; The bottom end of the front limit rod is hinged to the top end of the front connecting rod, the bottom end of the front connecting rod is hinged to the movable rod, the bottom end of the locating pin is hinged to the top end of the rear connecting rod, and the bottom end of the rear connecting rod is hinged to the movable rod; when there is no external force, the locating pin and the front limit rod are both perpendicular to the movable rod, and the locating pin and the front limit rod remain in a state of protruding out of the surface of the supporting platform; when the front end of the movable rod is subjected to a thrust, the front connecting rod and the rear connecting rod can respectively pull the front limit rod and the locating pin down to a position below the surface of the supporting platform.

2. The temporary storage rack according to claim 1, characterized in that: It also includes a plurality of universal support wheels, which are distributed on the supporting platform in a dot matrix.

3. The temporary storage rack according to claim 1, characterized in that: The front fixing member and the rear fixing member are both hollow bearings.

4. The temporary storage rack according to claim 1, characterized in that: A return spring limiting piece is fixed on the movable rod, and the return spring is clamped between the return spring limiting piece and the front fixing piece and / or the rear fixing piece.

5. The temporary storage rack according to claim 1, characterized in that: One end of the return spring is fixed on the frame body, and the other end abuts against the end of the movable rod away from the open end.

6. The temporary storage rack according to claim 1, wherein: A limiting block for preventing the movable rod from retracting into the rear fixing member is also fixed to one end of the movable rod away from the open end.

7. The temporary storage rack according to claim 1, characterized in that: A rear buffer pad is provided on a side of the limiting block facing the open end; or a rear buffer pad is provided on a side of the rear fixing member facing the limiting block.

8. The temporary storage rack according to claim 1, wherein: A positioning step is provided on the top end of the front limiting rod.

9. The temporary storage rack according to claim 1, wherein: The bottom end of the front limit rod is hinged to the top end of the front connecting rod through a connecting pin or a screw, the bottom end of the front connecting rod is hinged to the movable rod through a connecting pin or a screw, the bottom end of the positioning pin is hinged to the top end of the rear connecting rod through a connecting pin or a screw, and the bottom end of the rear connecting rod is hinged to the movable rod through a connecting pin or a screw.

10. The temporary storage rack according to claim 9, characterized in that: The movable rod is provided with a front mounting groove and a rear mounting groove spaced apart from each other. The bottom end of the front connecting rod is hinged to the groove wall of the front mounting groove, and the bottom end of the rear connecting rod is hinged to the groove wall of the rear mounting groove.

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