A fully automatic small workpiece loading device

Abstract

The present invention relates to a fully automatic small workpiece loading device, which belongs to the technical field of loading equipment, including a frame and several storage bins, a drive assembly, a clip assembly, a transmission assembly and a limit control assembly installed on the frame; the several storage bins are connected end to end and installed on the transmission assembly, and the transmission assembly circulates so that the several storage bins pass through and stay above the overlapping point of the movement path of the transmission assembly and the clip assembly in turn, and the limit control assembly cooperates with the transmission assembly to realize the start and stop of the several storage bins above the overlapping point, and the clip assembly continuously matches and loads the storage bin above the overlapping point. The present application utilizes the action process of the clip assembly loading to drive the transmission assembly to move through the drive assembly, and the process of the transmission assembly movement drives several bins to move, thereby realizing sequential and efficient automatic loading of multiple bins, and selecting mobile storage bins to replace existing fixed storage bins, thereby simplifying the loading process and improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of feeding equipment, and in particular relates to a fully automatic small workpiece feeding device. Background Art

[0002] A clip-type automatic loading silo is usually a device that combines mechanical, electrical and automation technologies to achieve automatic storage, transportation and supply of materials. This loading silo method can improve production efficiency and the degree of automation. However, the existing clip-type automatic loading silo also has some shortcomings:

[0003] On current automated production lines, traditional manual loading methods are no longer able to meet the efficient and precise production requirements for small, lightweight, and thin workpieces. Manual loading is not only labor-intensive and inefficient, but can also easily lead to loading errors or workpiece damage due to human error, compromising product quality and production efficiency.

[0004] To this end, the existing technology usually adopts an automatic loading solution, which usually includes at least one storage bin. In this case, a mechanical loading component is used to automatically perform the loading action, solving various problems of manual loading.

[0005] In the above structure, a single silo design is often adopted. The problem with a single silo is that when a large number of workpieces need to be loaded, the workpieces in the single silo will be quickly loaded in a short time during the automatic loading operation. However, when there are no workpieces in the silo, the automatic operation equipment needs to be stopped before the workpieces waiting to be loaded are added to the single silo, which seriously affects the loading efficiency.

[0006] Based on the above, existing means usually require setting up multiple silos and making multiple storage silos pass through the loading points of the loading assembly in sequence. However, the general solution at this time is to set up two sets of power sources at the same time to simultaneously drive the movement of the storage silos through the loading assembly and the loading action of the loading assembly. However, setting up two sets of power sources at the same time will not only make the entire set of equipment larger, but also increase the cost of the equipment. Summary of the Invention

[0007] In order to solve the above problems existing in the prior art, the present invention provides a fully automatic small workpiece loading device, which solves the problem of increased equipment cost caused by the need for multiple power sources to drive the loading device and drive the loading and movement of the storage bins when using multiple bins for feeding.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A fully automatic small workpiece loading device comprises a frame and a plurality of storage bins mounted on the frame, a drive assembly, a clip assembly, a transmission assembly and a limit control assembly; the clip assembly is connected to the drive assembly, and the drive assembly drives the clip assembly to reciprocate linear motion; the transmission assembly is connected to the drive assembly, and the drive assembly drives the transmission assembly to perform circular motion;

[0010] Several storage bins are connected end to end and installed on the transmission assembly. The transmission assembly circulates so that the several storage bins pass through and stay above the overlapping point of the movement path of the transmission assembly and the magazine assembly in turn. The limit control assembly cooperates with the transmission assembly to realize the start and stop of the several storage bins above the overlapping point. The magazine assembly continuously matches and loads the storage bin above the overlapping point.

[0011] Preferably, the frame includes a first workbench and a second workbench, the second workbench is fixedly mounted on the first workbench; and the second workbench is located above the first workbench; a discharge port is provided on the top surface of the second workbench, and the discharge port corresponds to the workpiece port provided at the bottom of the storage bin.

[0012] Preferably, the storage bin is a polyhedron that is through from top to bottom; a dovetail portion is provided at the bottom of the storage bin, and the dovetail portion is slidably installed in a dovetail groove provided on the second workbench.

[0013] Preferably, the magazine assembly includes a cylinder, a movable block and a push plate; the cylinder is installed on the first workbench, the movable block is connected to the cylinder, and the cylinder drives the movable block to perform reciprocating linear motion; the movable block and the push plate are fixedly connected.

[0014] Preferably, a material retrieval trough is provided at one end of the push plate close to the storage bin, and the material retrieval trough is provided on a side of the push plate close to the storage bin; the top of the push plate is flush with the bottom surface of the second workbench.

[0015] Preferably, the structure of the driving assembly includes a slider and a screw rod; the slider is rotatably mounted on the first workbench through a mounting seat, and the slider is mounted on the screw rod and fixedly connected to the movable block.

[0016] Preferably, a suction component is also included, and a plurality of air holes are provided at the bottom of the material trough, and the air holes are connected to the suction component for adsorbing the workpiece in the material trough; the suction component includes a negative pressure chamber and a sliding part; the negative pressure chamber is provided in the pushing plate, and a plurality of the air holes are connected to the negative pressure chamber; the sliding part is slidably connected to the negative pressure chamber and forms a closed structure with the negative pressure chamber, and the sliding part extends out of the pushing plate and is provided with a connecting part, and the connecting part is connected to the second workbench.

[0017] Preferably, the transmission assembly includes a transmission chain, a driving gear set and a passive gear; the driving gear set and the passive gear are rotatably mounted on the frame, and both the driving gear set and the passive gear are engaged with the transmission chain.

[0018] Preferably, the active tooth group includes inner teeth and outer teeth, the inner teeth are coaxially installed with the outer teeth, and the inner teeth are located on the inner periphery of the outer teeth; the limit control component is used to control the meshing state of the active tooth group and the transmission chain, and the limit control component includes an electromagnetic limit member, a limit generator and a control unit; the electromagnetic limit member is slidably installed on the side where the inner teeth and the outer teeth contact, and the outer teeth are provided with an installation groove for accommodating the electromagnetic limit member; the limit generator is installed on the push plate, and the limit generator is used to sense the gravity exerted on the push plate and upload it to the control unit, and the control unit drives the electromagnetic limit member to slide to the installation groove according to the data uploaded by the limit generator.

[0019] The beneficial effects of the present invention are:

[0020] The present application uses a drive assembly and a transmission assembly to realize the loading of several storage bins. The action process of the magazine assembly loading can be used to drive the transmission assembly to move through the drive assembly, and the movement process of the transmission assembly drives several storage bins to move, thereby realizing the sequential and efficient automatic loading of multiple bins, and can meet the needs of one-time loading of workpieces, simplify the loading process, and improve work efficiency; and can realize the pushing of the push plate and the movement of the storage bin by only using the driving force of one cylinder, which can simplify the equipment structure and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic top view of the structure of an automatic loading device provided in one embodiment of the present invention;

[0023] Figure 2 This is a front view structural diagram of an automatic loading device provided in one embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the installation structure of a transmission assembly provided in one embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a suction assembly provided in one embodiment of the present invention;

[0026] Legend: 1. Frame; 11. First workbench; 12. Second workbench; 121. Dovetail groove; 2. Storage bin; 3. Drive assembly; 31. Slider; 32. Screw rod; 4. Clip assembly; 41. Cylinder; 42. Movable block; 43. Push plate; 431. Material trough; 432. Air hole; 5. Transmission assembly; 51. Transmission chain; 521. Internal teeth; 522. External teeth; 53. Passive teeth; 6. Suction assembly; 61. Negative pressure chamber; 62. Sliding part; 7. Limit control assembly; 71. Electromagnetic limit part. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0028] like Figures 1-4 As shown, a fully automatic small workpiece loading device includes a frame 1 and several storage bins 2, a drive assembly 3, a clip assembly 4, a transmission assembly 5 and a limit control assembly 7 installed on the frame 1; the clip assembly 4 is connected to the drive assembly 3, and the drive assembly 3 drives the clip assembly 4 to reciprocate linear motion; the transmission assembly 5 is connected to the drive assembly 3, and the drive assembly 3 drives the transmission assembly 5 to perform a circular motion;

[0029] Several storage bins 2 are connected end to end and installed in the transmission assembly 5. The transmission assembly 5 circulates to make several storage bins 2 pass through and stay above the overlapping point of the movement path of the transmission assembly 5 and the clip assembly 4. The limit control assembly 7 cooperates with the transmission assembly 5 to realize the start and stop of several storage bins 2 above the overlapping point. The clip assembly 4 continuously matches and loads the storage bin 2 above the overlapping point. On the one hand, the driving assembly 3 drives the clip assembly 4 to perform reciprocating linear motion through mechanical connection; on the other hand, it also drives the transmission assembly 5 to perform cyclic motion. The two coordinated movements ensure that the upper The smooth progress of the feeding process realizes the automatic start and stop and loading of multiple bins, and the transmission component 5 starts to circulate under the action of the driving component 3, so that the several storage bins 2 installed on the transmission component 5 pass through and stay above the transmission component 5 and the clip component 4 in turn; in order to ensure that the storage bin 2 can stay stably above the coincidence point and automatically move after all the workpieces in the current storage bin 2 are loaded, the unloaded storage bin 2 is moved to the coincidence point for the clip component 4 to load, and the limit control component 7 completes the start and stop of the storage bin 2 by limiting with the transmission component 5;

[0030] The plurality of storage bins 2 are designed to be connected end to end and are installed on the frame 1 perpendicular to the movement direction of the clip assembly 4. Each storage bin 2 is used to store small workpieces. The plurality of storage bins 2 connected end to end can increase the storage space, speed up the production efficiency, avoid the need to feed materials with only fixed storage bins 2, and need to frequently load the storage bins 2; the transmission assembly 5 is connected to the storage bin 2, and is driven by the drive assembly 3, so that the transmission assembly 5 can drive the storage bin 2 to move. This function allows the system to increase the number of storage bins 2 according to production needs, so that the loading device can automatically complete the number of materials that need to be loaded. Moreover, during the movement of the storage bin 2, for example, it currently takes 3 hours to complete the loading of the workpiece, and the storage space of the existing fixed storage bin 2 is limited, and the storage bin 2 needs to be loaded multiple times to meet the requirements, and generally a counterweight block is configured on the top of the storage bin 2, which will result in a cumbersome process when loading the fixed storage bin 2 and seriously affect the efficiency; while the mobile storage bin 2 can place the workpiece into the bin before loading, and after starting the loading device, it can automatically run until the loading is completed, which can meet the long-term loading requirements, and the process is simple and efficient;

[0031] Specifically, when the mobile storage silo 2 is loading, several storage silos 2 pass through the clip assembly 4 in sequence under the action of the drive assembly 3 and the transmission assembly 5 to complete the loading; the clip assembly 4 is installed on the frame 1 and can move back and forth in the front and rear directions of the frame 1. When the storage silo 2 moves to the loading area, the clip assembly 4 moves forward under the drive of the drive assembly 3 and accurately docks with the outlet of the storage silo 2. At this time, the workpiece falls into the clip assembly 4 under the action of gravity to complete the material receiving action; after the material receiving is completed, the clip assembly 4 continues to move forward to transport the workpiece to the next process or designated position. During the whole process, the design of the clip assembly 4 should ensure that the workpiece is stable and not easy to fall, while maintaining high-speed and precise movement. It can simultaneously drive the transmission assembly 5 and cooperate to realize the start and stop of the storage silo 2 through a single drive assembly 3, reducing additional drive sources and control systems, thereby simplifying the overall structure and reducing manufacturing costs and maintenance costs. Due to the use of a single power source and a unified control system, it is easier to achieve precise coordination and synchronous movement between the transmission assembly 5 and the storage silo 2, thereby improving the accuracy and reliability of the loading process;

[0032] In short, the drive component 3 and the transmission component 5 are selected to realize the loading of several storage bins 2. The loading action process of the clip component 4 can be utilized to drive the transmission component 5 to move through the drive component 3, and the movement process of the transmission component 5 drives several bins to move, thereby realizing the sequential and efficient automatic loading of multiple bins. The mobile storage bin 2 is selected to replace the existing fixed storage bin 2, which can realize the one-time loading of workpieces according to demand, simplify the loading process, and improve work efficiency.

[0033] In one embodiment, the frame 1 includes a first workbench 11 and a second workbench 12, the second workbench 12 is fixedly mounted on the first workbench 11; and the second workstation is located above the first workbench 11; the top surface of the second workbench 12 is provided with a discharge port, which corresponds to the workpiece port at the bottom of the storage bin 2; when the workpiece in the storage bin 2 needs to be loaded, the transmission assembly 5 drives the storage bin 2 to move in the left and right directions and the workpiece port corresponds to the storage port, forming a loading area for the workpiece, at this time, the clip assembly 4 will move backward in the front and rear directions, and accurately dock with the workpiece port of the storage bin 2. After the docking is completed, The workpiece falls into the clip assembly 4 by gravity or auxiliary device, and then the clip assembly 4 transports the workpiece to the next process. The entire loading process is a cyclic operation process, and the first workbench 11 and the second workbench 12 stacked up and down can work on several storage bins 2 and the clip assembly 4 without affecting each other; after completing one loading, the clip assembly 4 will return to the initial position, and the transmission assembly 5 will only drive the next storage bin 2 to move to the receiving position after the workpiece in the storage bin 2 is loaded, and replace the new storage bin 2 to continue loading. This cyclic operation method greatly improves production efficiency.

[0034] In one embodiment, the structure of the storage bin 2 is a polyhedron that is connected from top to bottom; a dovetail portion is provided at the bottom of the storage bin 2, and the dovetail portion is slidably installed in a dovetail groove 121 provided on the second workbench 12; the matching design of the dovetail groove 121 and the dovetail portion provides a high-precision sliding guide mechanism. When the storage bin 2 moves along the dovetail groove 121 of the second workbench 12 under the drive of the transmission assembly 5, the shape of the dovetail portion ensures that the storage bin 2 can slide smoothly along a predetermined straight path without deviation or shaking. This design greatly improves the positioning accuracy of the storage bin 2, ensuring that it can accurately dock with the material receiving position of the magazine assembly 4 each time it is loaded.

[0035] In one embodiment, the magazine assembly 4 includes a cylinder 41, a movable block 42, and a push plate 43; the cylinder 41 is mounted on the first workbench 11, the movable block 42 is connected to the cylinder 41, and the cylinder 41 drives the movable block to perform reciprocating linear motion; the movable block 42 and the push plate 43 are fixedly connected; the cylinder 41 serves as a power source and is firmly mounted on the first workbench 11. When a control signal is received, the cylinder 41 starts working and generates linear thrust through the movement of the piston inside it; the movable block 42 is connected to the piston rod of the cylinder 41 directly or through a connecting piece. Driven by the cylinder 41, the movable block 42 performs reciprocating linear motion in the front-to-back direction. This motion trajectory ensures that the push plate 43 can accurately reach the material receiving position of the storage bin 2 and push the workpiece to the target position; the push plate 43 is fixedly connected to the movable block 42 and moves with the movable block 42. The specific shape and size of the push plate 43 are designed according to the shape and size of the workpiece to ensure that the workpiece can be firmly grasped and pushed; when the movable block 42 and the push plate 43 move to the material receiving position of the storage bin 2, the push plate 43 extends into the bottom of the storage bin 2, and the design of its shape and position enables the workpiece to naturally fall into the push plate 43. Subsequently, the cylinder 41 continues to drive the movable block 42 and the push plate 43 to move backward, pushing the workpiece to the target position, completing the loading of a workpiece, and the reciprocating motion of the cylinder 41 can realize the automatic loading of the workpiece.

[0036] In one embodiment, a feed chute 431 is provided at one end of the push plate 43 near the storage bin 2. The feed chute 431 is located on the side of the push plate 43 near the storage bin 2. The top of the push plate 43 is flush with the bottom of the second workbench 12. This flushness ensures that the push plate 43 remains firmly in place on the second workbench 12 during movement, preventing any shaking or shifting due to height differences. This design improves the positioning accuracy of the push plate 43 at the material receiving position. When the push plate 43 moves with the movable block 42 to the material receiving position of the storage bin 2, the feed chute 431 precisely aligns with the discharge port of the storage bin 2. Because the shape and size of the feed chute 431 match the workpiece, the workpiece can smoothly fall into the feed chute 431 and be effectively grasped by the push plate 43. Driven by the cylinder 41, the movable block 42 drives the push plate 43 backward along a predetermined trajectory. At this time, the workpiece in the trough 431 is firmly fixed on the push plate 43 and is pushed to the target position together with the push plate 43. Since the push plate 43 is flush with the second workbench 12, the pushing process is very smooth, reducing the risk of the workpiece falling or being damaged due to shaking or impact.

[0037] In one embodiment, the structure of the drive assembly 3 includes a slider 31 and a screw rod 32. The slider 31 is rotatably mounted on the first workbench 11 via a mounting base. The slider 31 is mounted on the screw rod 32 and fixedly connected to the movable block 42. The slider 31 is rotatably mounted on the first workbench 11 via the mounting base. This mounting method allows the slider 31 to remain stable in the horizontal direction while being able to slide along the axial direction of the screw rod 32. The mounting base ensures that the slider 31 does not deviate from the predetermined trajectory during movement, thereby maintaining the stability and accuracy of the transmission. The slider 31 and the movable block 42 are connected by a fixed connecting member. In this way, when the slider 31 moves axially under the drive of the screw rod 32, the movable block 42 will also move with it. When the movable block 42 performs reciprocating linear motion with the slider 31, due to the threaded connection between the slider 31 and the screw rod 32, the screw rod 32 rotates with the first workbench 11.

[0038] In one embodiment, a suction component 6 is further included, and a plurality of air holes 432 are provided at the bottom of the material trough 431, and the air holes 432 are connected to the suction component 6 for adsorbing the workpiece in the material trough 431; the suction component 6 includes a negative pressure chamber 61 and a sliding member 62; the negative pressure chamber 61 is provided in the pushing plate 43, and a plurality of air holes 432 are connected to the negative pressure chamber 61; the sliding member 62 is slidably connected in the negative pressure chamber 61 and forms a closed structure with the negative pressure chamber 61, and the sliding member 62 extends out of the pushing plate 43 and is provided with a connecting portion, which is connected to the second workbench 12; the sliding member 62 is slidably connected in the negative pressure chamber 61 and forms a closed structure with the negative pressure chamber 61.

[0039] Although some automated loading devices are currently available on the market, they still have many shortcomings considering the characteristics of small, lightweight workpieces. For example, the push mechanism of traditional loading devices is often simply designed, making it difficult to adapt to the stable transportation of lightweight workpieces. At the same time, the suction force of the suction mechanism is insufficient, which can easily cause the workpiece to fall off during transportation, resulting in loading failure or damage to the workpiece. This embodiment allows the volume of the negative pressure chamber 61 to be changed or the air hole 432 to be opened or closed by moving the sliding member 62 when necessary, thereby controlling the generation and release of negative pressure. Due to the negative pressure, the workpiece is tightly adsorbed to the bottom of the material trough 431. The design of the air hole 432 should ensure that the negative pressure is evenly distributed throughout the entire material trough 431 area, thereby achieving comprehensive adsorption of the workpiece. Under the action of the negative pressure, the workpiece is firmly adsorbed in the material trough 431. Subsequently, the push plate 43 moves with the movable block 42, removing the workpiece from the storage bin 2 and pushing it to the target location. Throughout the entire process, the negative pressure maintains the adsorption force on the workpiece, ensuring that the workpiece does not fall or shift.

[0040] In one embodiment, the transmission assembly 5 includes a transmission chain 51, a driving gear set and a passive gear 53; the driving gear set and the passive gear 53 are rotatably mounted on the frame 1, and both the driving gear set and the passive gear 53 are engaged with the transmission chain 51; when the driving gear set starts to rotate, the teeth on it begin to engage with the chain links on the transmission chain 51, and the chain transmits power. During the transmission process, the chain links on the chain sequentially contact the teeth of the driving gear set and the passive gear 53 and generate a force, thereby realizing continuous transmission of power. The passive gear 53 is also rotatably mounted on the frame 1 and engages with the other side of the transmission chain 51. When the transmission chain 51 moves under the drive of the active gear group, it will push the passive gear 53 to rotate together; in this way, the chain rotates on the second workbench 12, and drives the material bin to move during the rotation process; specifically, the transmission chain 51 is provided with a clamping bar, and the storage bin 2 is provided with a clamping groove, the clamping bar is clamped with the clamping groove on the left, and drives the storage bin 2 to move to the right under the action of the transmission chain 51. When it moves to the loading area, the clamping bar just needs to turn, that is, it moves from the upper part of the transmission chain 51 to the lower part. At this time, the clamping bar will slide out of the clamping groove, thereby realizing the movement of the storage bin 2 by the transmission component 5.

[0041] In one embodiment, the active gear group includes an inner tooth 521 and an outer tooth 522, the inner tooth 521 and the outer tooth 522 are coaxially mounted, and the inner tooth 521 is located on the inner periphery of the outer tooth 522; the limit control component 7 is used to control the meshing state of the active gear group and the transmission chain 51, and the limit control component 7 includes an electromagnetic limit member 71, a limit generator and a control unit; the electromagnetic limit member 71 is slidably mounted on the side of the inner tooth 521 in contact with the outer tooth 522, and the outer tooth 522 is provided with a mounting groove for accommodating the electromagnetic limit member 71; the limit generator is mounted on the push plate 43, and the limit generator is used to sense the gravity exerted on the push plate 43 and upload it to the control unit, and the control unit drives the electromagnetic limit member 71 to slide to the mounting groove according to the data uploaded by the limit generator; the inner tooth 521 and the outer tooth 522 are coaxially mounted, and the inner tooth 521 is located on the inner periphery of the outer tooth 522, so that the active gear group The gear group is more compact and efficient when transmitting power; the limit control component 7 realizes dynamic control of the meshing state of the active gear group and the transmission chain 51 through the coordinated work of the electromagnetic limit member 71, the limit generator and the control unit; the electromagnetic limit member 71 is slidably installed on the contact side of the inner teeth 521 and the outer teeth 522, and the outer teeth 522 are provided with a mounting groove to accommodate the electromagnetic limit member 71; when the electromagnetic limit member 71 slides into the mounting groove, it will prevent the relative movement between the inner teeth 521 and the outer teeth 522. At this time, the inner teeth 521 and the outer teeth 522 synchronously transmit power to the transmission chain 51, that is, the screw rod 32 transmits the transmission force to the inner teeth 521, and the inner teeth 521 are connected to the outer teeth 522 through the electromagnetic limit member 71, so that the rotational force of the screw rod 32 will be transmitted to the transmission chain 51 through the outer teeth 522, thereby realizing the rotation of the transmission chain 51;

[0042] The limit generator is installed on the push plate 43 and is used to sense the weight of the push plate 43. This information is crucial for determining whether the limit mechanism needs to be activated. In order for the workpiece to enter the push plate 43 smoothly, the storage bin 2 usually has a counterweight block on the top of the storage bin 2. When the limit generator senses that the weight of the push plate 43 is consistent with the weight of the counterweight block, it uploads this information to the control unit. The control unit quickly processes the data and sends a command to the electromagnetic limit member 71. The electromagnetic limit member 71 will quickly slide into the installation groove, and the inner teeth 521 and the outer teeth 522 will be connected by the action of the electromagnetic limit member 71. In this way, the rotational force of the screw rod 32 can be transmitted to the transmission chain 51.

[0043] By setting a limit control component 7 to control the connection status of the inner teeth 521 and the outer teeth 522, and then controlling the connection and disconnection of the drive component 3 and the transmission component 5, the start and stop of several storage bins 2 are realized, and the cylinder 41 is used as a power source to control the storage bin 2 to stay above the clip assembly 4 when loading, and when one of the storage bins 2 is loaded, it will move so that the next storage bin 2 is aligned with the clip assembly 4. The pushing of the push plate 43 and the movement of the storage bin 2 can be achieved by only using the driving force of one cylinder 41, which can simplify the equipment structure and save costs.

[0044] Working principle:

[0045] In the initial state, the plurality of storage bins 2 are filled with workpieces, and each workpiece is provided with a counterweight. After the first storage bin 2 reaches the loading area, the clip assembly 4 is driven. At this time, the clip assembly 4 starts to reciprocate to realize the loading and unloading of the workpieces in the first storage bin 2. At this time, the electromagnetic limiter 71 maintains the initial state and is located in the inner teeth 521. Therefore, the inner teeth 521 and the outer teeth 522 are not connected. When the inner teeth 521 are acted upon by the rotational force of the screw rod 32, the rotational force is not transmitted to the outer teeth 522, and the transmission chain 51 does not rotate. At this time, the inner teeth 521 and the outer teeth 522 are idling.

[0046] Moving state: until the workpiece in the first storage bin 2 is loaded, the limit generator detects that the weight of the push plate 43 is consistent with the weight of the counterweight block. At this time, the limit generator uploads the weight information of the push plate 43 to the control unit, and the control unit drives the electromagnetic limit member 71 to extend from the inner teeth 521 to the outer teeth 522, so as to realize the connection between the inner teeth 521 and the outer teeth 522. At this time, the rotational force of the screw rod 32 will be transmitted to the outer teeth 522 through the inner teeth 521. Since the outer teeth 522 are engaged with the transmission chain 51, when the outer teeth 522 rotate, it drives the transmission chain 51 to rotate. When the transmission chain 51 rotates, it drives the storage bin 2 filled with workpieces to move to the loading area, and the storage bin that has been loaded 2 is moved out of the loading area. When the limit generator detects that the weight of the push plate 43 has changed, that is, it is inconsistent with the weight of the counterweight block, it sends a signal to the control unit. At this time, the control unit will send a signal to the electromagnetic limit member 71, so that the electromagnetic limit member 71 moves from the outer teeth 522 back to the inner teeth 521; at this time, the workpiece located in the loading area can be loaded normally, and this reciprocating cycle will be repeated until the set time is completed, which can realize the automatic loading of the workpiece throughout the process, and the transition process of the front and rear storage bins 2 is fast and efficient, and will not affect the loading of the workpiece; at the same time, the pushing of the push plate 43 and the movement of the storage bin 2 can be realized by only the driving force of the cylinder 41, which can simplify the equipment structure and save costs.

[0047] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fully automatic small workpiece loading device, characterized in that: The machine comprises a frame and several storage bins, a drive assembly, a clip assembly, a transmission assembly and a limit control assembly installed on the frame; the clip assembly is connected to the drive assembly, and the clip assembly drives the drive assembly to reciprocate linearly; the transmission assembly is connected to the drive assembly, and the drive assembly drives the transmission assembly to perform a circular motion; several storage bins are connected end to end and installed on the transmission assembly, and the circular motion of the transmission assembly causes several of the storage bins to pass through and stay above the overlapping point of the motion path of the transmission assembly and the clip assembly, and the limit control assembly cooperates with the transmission assembly to realize the start and stop of several of the storage bins above the overlapping point, and the clip assembly continuously matches and loads the storage bin above the overlapping point; The frame includes a first workbench, and the clip assembly includes a cylinder, a movable block and a push plate; the cylinder is installed on the first workbench, the movable block is connected to the cylinder, and the cylinder drives the movable block to perform reciprocating linear motion; the movable block and the push plate are fixedly connected; the structure of the driving assembly includes a slider and a screw rod; the slider is rotatably installed on the first workbench through a mounting seat, the slider is installed on the screw rod and is fixedly connected to the movable block; the transmission assembly includes a transmission chain, an active gear group and a passive gear; the active gear group and the passive gear are rotatably installed on the frame, and the active gear group and the passive gear are both meshed with the transmission chain; the active gear group It includes inner teeth and outer teeth, the inner teeth are coaxially installed with the outer teeth, and the inner teeth are located on the inner periphery of the outer teeth; the limit control component is used to control the meshing state of the active tooth group and the transmission chain, and the limit control component includes an electromagnetic limit part, a limit generator and a control unit; the electromagnetic limit part is slidably installed on the side where the inner teeth and the outer teeth contact, and the outer teeth are provided with a mounting groove for accommodating the electromagnetic limit part; the limit generator is installed on the push plate, and the limit generator is used to sense the gravity exerted on the push plate and upload it to the control unit, and the control unit drives the electromagnetic limit part to slide to the mounting groove according to the data uploaded by the limit generator.

2. A fully automatic small workpiece loading device according to claim 1, characterized in that: The frame includes a second workbench, which is fixedly installed on the first workbench; and the second workbench is located above the first workbench; a discharge port is provided on the top surface of the second workbench, and the discharge port corresponds to the workpiece port provided at the bottom of the storage bin.

3. A fully automatic small workpiece loading device according to claim 2, characterized in that: The storage bin is a polyhedron that is connected from top to bottom; a dovetail portion is provided at the bottom of the storage bin, and the dovetail portion is slidably installed in a dovetail groove provided on the second workbench.

4. A fully automatic small workpiece loading device according to claim 2, characterized in that: A material taking trough is provided at one end of the push plate close to the material storage bin, and the material taking trough is provided on one side of the push plate close to the material storage bin; the top of the push plate is flush with the bottom surface of the second workbench.

5. A fully automatic small workpiece loading device according to claim 4, characterized in that: It also includes a suction component, and a plurality of air holes are provided at the bottom of the material trough, and the air holes are connected to the suction component for adsorbing the workpiece in the material trough; the suction component includes a negative pressure chamber and a sliding member; the negative pressure chamber is provided in the pushing plate, and a plurality of the air holes are connected to the negative pressure chamber; the sliding member is slidably connected to the negative pressure chamber and forms a closed structure with the negative pressure chamber, and the sliding member extends out of the pushing plate and is provided with a connecting portion, and the connecting portion is connected to the second workbench.

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