A power mechanism for feeding disc workpieces

Abstract

The present invention relates to the technical field of automated production devices, and specifically to a power mechanism for feeding a disc workpiece, comprising a fixed plate and a turntable, wherein the turntable is arranged at the lower end of the fixed plate, and two transmission modules are radially arranged on both sides of the middle portion of the upper end of the fixed plate, and the upper ends of the two transmission modules are each provided with a connecting rod, and the transmission module is used to drive the connecting rod to move radially, and one end of the connecting rod is fixedly connected to a driving block, and the lower end of the driving block is provided with a cam bearing, and the lower end of the cam bearing is bolted to a cylinder, and the output end of the cylinder is fixedly connected to two workpiece clamps, and both sides of the middle portion of the upper end of the turntable are radially fixedly connected to linear guide rails. Compared with the prior art, the present application solves the problems of the prior art in that the feeding mechanism occupies a large space, the material distribution structure is bloated, and the high-speed feeding is unstable.

Description

Technical Field

[0001] The present invention relates to the technical field of automated production devices, and in particular to a power mechanism for feeding a disc workpiece. Background Art

[0002] In the modern, highly developed field of automated production, the automatic feeding of bulk materials is undoubtedly a key and crucial link. Disc workpieces, as a common and representative material type, are characterized by their regular shape and smooth surface. They require precise and efficient feeding operations in many industrial production processes. This link is like a key hub in the automated production chain, and its operating conditions directly affect the efficiency and quality of the entire production process. It undertakes extremely critical tasks, requiring efficient and precise completion of a series of operations such as material handling, transfer, and placement. Every link cannot tolerate the slightest error. From the precise grasping of materials, to the stable transfer of materials to the designated location, to the accurate placement of materials, strict control is required to ensure that automated production can proceed continuously, stably, and efficiently.

[0003] In the workpiece feeding link, traditional feeding mechanisms generally use conveyor belts as a feeding method. However, this type of traditional feeding mechanism has obvious disadvantages. It is bulky and takes up a lot of space. It is difficult to operate in situations where space is limited. When it is necessary to divide the workpiece and transport it to two different workstations, the problem is more prominent. It not only further increases the overall volume, but also makes the structure more complicated. In order to realize the function of dividing and transporting the workpiece to multiple workstations, traditional feeding mechanisms often need to be equipped with a series of dividing devices, such as mechanical parts such as robotic arms and cylinders, and various electronic components such as infrared detection. The superposition of these devices makes the overall structure of the feeding mechanism bloated, and the difficulty of daily maintenance is greatly increased. More importantly, in high-speed feeding scenarios, traditional feeding mechanisms are difficult to ensure the stability of feeding, which seriously affects production efficiency and product quality.

[0004] Furthermore, we disclose a power mechanism for feeding disc workpieces to solve the problems in the prior art of large space occupied by feeding mechanisms, bloated material distribution structures and unstable high-speed feeding. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose a power mechanism for feeding disc workpieces to solve the problems in the prior art of large space occupied by the feeding mechanism, bloated material distribution structure and unstable high-speed feeding.

[0006] Based on the above objectives, the present invention provides a power mechanism for feeding a disc workpiece, comprising a fixed plate and a turntable, wherein the turntable is arranged at the lower end of the fixed plate, and two transmission modules are radially arranged on both sides of the middle part of the upper end of the fixed plate, and the upper ends of the two transmission modules are each provided with a connecting rod, and the transmission module is used to drive the connecting rod to move radially, and one end of the connecting rod is fixedly connected to a driving block, and the lower end of the driving block is provided with a cam bearing, and the lower end of the cam bearing is bolted to a cylinder, and the output end of the cylinder is fixedly connected to two workpiece clamps, and linear guides are radially fixedly connected to both sides of the middle part of the upper end of the turntable, and the lower end of the cylinder is slidably connected to the linear guide, and the lower end of the fixed plate is fixedly connected to the disc, and an annular groove is provided on the outer side of the disc, and an arc groove is provided on the lower end of the driving block, and the upper end of the cam bearing is placed inside the arc groove, and the arc groove and the annular groove can together form an annular groove, and the upper end of the cam bearing is slidably connected in the annular groove, and the lower end of the turntable is mounted on the station divider and can rotate around the disc center.

[0007] Preferably, the conveying module includes a conveying frame fixedly connected to the upper end surface of the fixed plate, the inner middle part of the conveying frame is rotatably connected to a screw rod, a motor is provided on one side of the conveying frame, the output end of the motor extends into the interior of the conveying frame and is fixedly connected to the screw rod, the outer wall of the screw rod is transmission-connected to a transmission block, and the upper end of the transmission block is fixedly connected to the side of the lower end surface of the connecting rod away from the driving block.

[0008] Preferably, a pneumatic-electric ring mounting plate is bolted to the lower middle end of the fixed plate at a concentric position with the turntable, and a pneumatic-electric ring body is provided at the middle of the upper end of the pneumatic-electric ring mounting plate, and the pneumatic-electric ring body is used for the pneumatic-electric connection of the cylinder.

[0009] Preferably, both sides of the fixing plate and the disc are provided with open grooves on the same side as the driving block, the specifications and dimensions of the open grooves are the same as those of the driving block, and the groove width of the open grooves is greater than the groove width of the annular sliding groove.

[0010] Preferably, the upper end of the linear guide rail is slidably connected to a slider, and the lower end of the cylinder is fixedly connected to the slider.

[0011] Preferably, the connecting rod is "Z"-shaped.

[0012] Preferably, a roller is provided at the upper end of the cam bearing at a position inside the arc-shaped sliding groove, and the roller is engaged and rotatably connected with the cam bearing.

[0013] Preferably, four corners of the lower end surface of the fixing plate are fixedly connected with columns, and the fixing plate is installed on the work surface through the four columns.

[0014] Preferably, a plurality of anti-slip grooves are provided on the inner side of one end of the workpiece clamping jaw away from the cylinder to increase the friction force on the circular workpiece to prevent it from falling.

[0015] Preferably, the pneumatic-electric ring body is provided with four-way gas interface and four-way circuit interface.

[0016] Beneficial effects of the present invention:

[0017] 1. During the rotation of the turntable, the two cam bearings achieve a smooth and stable transition between the short arc-shaped groove and the annular groove of the drive block. This design cleverly utilizes the short arc-shaped groove at the lower end of the drive block and the notch of the annular groove to form a complete sliding path. When the turntable starts to rotate, the cam bearing slides along this path in the annular groove. Due to the precise design and tight fit of the groove, the workpiece clamp and the clamped workpiece can maintain absolute radial stability during rotation without any radial displacement. This smooth transition design not only eliminates the jitter or offset caused by rotation in traditional feeding mechanisms, but also greatly improves the feeding accuracy, so that the workpiece can be delivered to the designated position accurately, providing a solid guarantee for subsequent processing or assembly processes.

[0018] 2. The power mechanism of the present invention is simple and clear in structure. It clamps the disc workpiece through the workpiece clamping claws, and then feeds the workpiece to the specified position by rotating the turntable, successfully realizing the complex feeding function. Compared with the traditional feeding mechanism, the present invention reduces the transmission components required for material distribution, and only uses the rotation of the turntable to achieve material distribution, which greatly reduces the overall cost and improves the convenience of daily maintenance. The whole device is arranged on the turntable, which greatly reduces the space occupied by the device and facilitates the use of the device in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 Schematic diagram of the internal three-dimensional structure of the present invention;

[0022] Figure 3 It is a three-dimensional schematic diagram of part of the structure of the present invention;

[0023] Figure 4This is a schematic diagram of the three-dimensional structure of the workpiece clamp of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the cam bearing installation of the present invention;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the lower end of the disc of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the transmission module of the present invention.

[0027] The following are marked in the figure:

[0028] 1. Fixed plate; 2. Turntable; 3. Motor; 4. Connecting rod; 5. Workpiece clamp; 6. Pneumatic ring mounting plate; 7. Pneumatic ring body; 8. Disc; 9. Drive block; 10. Linear guide; 11. Slider; 12. Cam bearing; 13. Arc slide; 14. Annular slide; 15. Opening slot; 16. Conveyor rack; 17. Screw; 18. Transmission block; 19. Cylinder. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0031] like Figures 1 to 7As shown, a power mechanism for feeding a disc workpiece includes a fixed plate 1 and a turntable 2. The turntable 2 is arranged at the lower end of the fixed plate 1. Two transmission modules are radially arranged on both sides of the middle of the upper end of the fixed plate 1. The upper ends of the two transmission modules are each provided with a connecting rod 4. The transmission module is used to drive the connecting rod 4 to move radially. One end of the connecting rod 4 is fixedly connected to a driving block 9. The lower end of the driving block 9 is provided with a cam bearing 12. The lower end of the cam bearing 12 is bolted to a cylinder 19. The output end of the cylinder 19 is fixedly connected to two workpiece clamps 5. Both sides of the middle of the upper end are radially fixedly connected with linear guides 10, the lower end of the cylinder 19 is slidably connected to the linear guide 10, the lower end of the fixed plate 1 is fixedly connected to the disc 8, the outer side of the disc 8 is provided with an annular slide 14, the lower end of the driving block 9 is provided with an arcuate slide 13, the upper end of the cam bearing 12 is placed inside the arcuate slide 13, the arcuate slide 13 and the annular slide 14 can together form an annular groove, the upper end of the cam bearing 12 is slidably connected in the annular slide 14, and the lower end of the turntable 2 is mounted on the station divider and can rotate around the disc center;

[0032] During the rotation of the turntable 2, the two cam bearings 12 achieve a smooth and stable transition between the short arc-shaped groove 13 and the annular groove 14 of the drive block 9. This design cleverly utilizes the short arc-shaped groove 13 at the lower end of the drive block 9 and the notch of the annular groove 14 to form a complete sliding path. When the turntable 2 starts to rotate, the cam bearing 12 slides along this path in the annular groove 14. Due to the precise design and tight fit of the groove, the workpiece clamp 5 and the clamped workpiece can maintain absolute radial stability during the rotation process without any radial displacement. This smooth transition design not only eliminates the jitter or offset caused by rotation in traditional feeding mechanisms, but also greatly improves the accuracy of feeding, so that the workpiece can be delivered to the designated position accurately, providing a solid guarantee for subsequent processing or assembly processes.

[0033] Further, such as Figure 7 As shown, the conveying module includes a conveying frame 16 fixedly connected to the upper end surface of the fixed plate 1, and the inner middle part of the conveying frame 16 is rotatably connected to the screw rod 17. A motor 3 is provided on one side of the conveying frame 16. The output end of the motor 3 extends into the interior of the conveying frame 16 and is fixedly connected to the screw rod 17. The outer wall of the screw rod 17 is transmission-connected to a transmission block 18. The upper end of the transmission block 18 is fixedly connected to the side of the lower end surface of the connecting rod 4 away from the driving block 9. The connecting rod 4 is "Z"-shaped;

[0034] The transmission module is mainly composed of a transmission frame 16 fixedly connected to the upper end surface of the fixed plate 1. The inner middle part of the transmission frame 16 is rotatably connected to a screw rod 17. A motor 3 is provided on one side of the transmission frame 16. The output end of the motor 3 is fixedly connected to the screw rod 17, thereby driving the screw rod 17 to rotate. When the screw rod 17 rotates, the transmission block 18 connected to its outer wall will move linearly along the screw rod 17. The upper end of this transmission block 18 is fixedly connected to the side of the lower end face of the "Z"-shaped connecting rod 4 away from the driving block 9. Therefore, when the transmission block 18 moves, it will drive the driving block 9 connected to it through the connecting rod 4. The turntable 2 can move radially, so that after the turntable 2 stops rotating, the end effector such as the workpiece clamp 5 can be radially extended or retracted through the drive of the motor 3 screw rod 17 module, thereby completing the feeding process of the workpiece of the disc 8. This design is not only compact in structure, but also can effectively achieve high-precision radial movement, thereby improving the accuracy and efficiency of feeding. At the same time, in actual use, the transmission module can adopt different alternatives according to actual conditions, such as using a group of motor 3 screw rod 17 modules to realize the opposite direction of loading and unloading through gear rack transmission, or using other linear drive mechanisms.

[0035] Further, such as Figures 2 to 6 As shown, the lower middle end of the fixed plate 1 is bolted to the concentric position of the turntable 2 with an air-electric ring mounting plate 6, and the middle part of the upper end of the air-electric ring mounting plate 6 is provided with an air-electric ring body 7, which is used for the air-electric connection of the cylinder 19, and the air-electric ring body 7 is provided with four-way air path interfaces and four-way circuit interfaces. Open grooves 15 are provided on both sides of the fixed plate 1 and the disc 8 and on the same side as the driving block 9. The specifications and dimensions of the open grooves 15 are the same as those of the driving block 9, and the groove width of the open grooves 15 is larger than the groove width of the annular slide groove 14. The upper end of the cam bearing 12 is provided with a roller at the inner position of the arc-shaped slide groove 13, and the roller is engaged and rotatably connected with the cam bearing 12. The four corners of the lower end face of the fixed plate 1 are fixedly connected with columns, and the fixed plate 1 is mounted on the workbench through four columns.

[0036] The power mechanism is mainly composed of key components such as a turntable 2, a fixed plate 1, a transmission module, a cam bearing 12, an annular slide 14, a drive block 9 and a pneumatic ring. When working, the two groups of workpiece clamps 5 are first installed on two groups of radially placed linear guides 10 and rotate with the turntable 2. Directly above the turntable 2, the fixed plate 1 is stably mounted on the table through structures such as columns. The transmission module is installed on it, and a circular disc 8 with an annular slide 14 is installed below. There are two open grooves 15 at both ends of the diameter of the annular slide 14. The cam bearing 12 connected to the workpiece clamp 5 is embedded in the arc slide 13. When the turntable 2 rotates, the cam bearing 12 slides in the fixed annular slide 14. This ensures that the workpiece clamp 5 has no radial displacement when the turntable 2 rotates, and the rotation stability can be ensured by the roller on the cam bearing 12. At the same time When the transmission module is in motion, it will drive the driving block 9 to move, and then drive the cam bearing 12 connected to the workpiece clamp 5 through the driving block 9, so that the workpiece clamp 5 extends or retracts radially. In addition, at the lower end of the middle part of the fixed plate 1, a pneumatic-electrical ring mounting plate 6 is bolted to the concentric position with the turntable 2, and a pneumatic-electrical ring body 7 is provided in the middle part of the upper end of the pneumatic-electrical ring mounting plate 6. This pneumatic-electrical ring body 7 is the key to the pneumatic-electrical connection of the cylinder 19. It has only four-way pneumatic interface and four-way circuit interface, which greatly simplifies the complexity of the pneumatic-electrical connection.

[0037] Further, such as Figure 4 As shown, the upper end of the linear guide 10 is slidably connected to the slider 11, and the lower end of the cylinder 19 is fixedly connected to the slider 11;

[0038] The slider 11 is slidably connected to the linear guide rail 10 , and the cylinder 19 is arranged on the slider 11 to improve the stability when the driving block 9 drives the cylinder 19 to move radially.

[0039] Working principle: During the operation of the power mechanism, the two groups of transmission modules serve as the core power source, and their movements are precise and coordinated. When the feeding instruction is received, the transmission module starts to work, driving the connecting rod 4 and the connected driving block 9 to move. The design of the driving block 9 is particularly critical. A short arc groove is provided at its lower end. This groove cooperates with the notch of the annular groove 14 to form a complete annular groove. As the driving block 9 moves, it drives the cam bearing 12 connected to the workpiece clamp 5 to slide in the annular groove 14, thereby realizing the radial movement of the workpiece clamp 5. After the workpiece clamp 5 extends radially to the outside of the turntable 2, it opens to grab the workpiece placed on the disc 8 outside. After the grabbing is completed, the transmission module moves again to drive the workpiece clamp 5 and the grabbed workpiece along It returns radially to the inside of the turntable 2. At this time, the turntable 2 starts to rotate, rotating the workpiece and the workpiece clamp 5 180 degrees together. During the rotation of the turntable 2, the two cam bearings 12 smoothly transition between the short arc groove 13 and the annular groove 14 of the drive block 9, ensuring that the workpiece clamp 5 and the workpiece have no radial displacement during the rotation process, thereby ensuring the accuracy of feeding. When the turntable 2 rotates to the specified position and stops, the transmission module starts again, driving the drive block 9 and the cam bearing 12 to move radially, thereby driving the workpiece clamp 5 and the workpiece to extend to the outside of the turntable 2 again, completing a complete feeding cycle. During this process, the pneumatic-electric ring body 7 serves as the pneumatic-electrical connection component of the cylinder 19. The four-way pneumatic interface and four-way circuit interface set therein ensure the stability and reliability of the action of the workpiece clamp 5.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0041] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A power mechanism for disc workpiece feeding, characterized by: The invention comprises a fixed plate (1) and a turntable (2), wherein the turntable (2) is arranged at the lower end of the fixed plate (1), and two transmission modules are radially arranged on both sides of the middle part of the upper end of the fixed plate (1), and the upper ends of the two transmission modules are provided with connecting rods (4), and the transmission modules are used to drive the connecting rods (4) to move radially, and the transmission module comprises a transmission frame (16) fixedly connected to the upper end surface of the fixed plate (1), and the inner middle part of the transmission frame (16) is rotatably connected to the screw rod (17), and a motor (3) is provided on one side of the transmission frame (16), and the output end of the motor (3) extends into the interior of the transmission frame (16) and is fixedly connected to the screw rod (17), and the outer wall of the screw rod (17) is connected to the transmission block for transmission. (18), the upper end of the transmission block (18) is fixedly connected to the side of the lower end face of the connecting rod (4) away from the driving block (9), the lower end of the middle part of the fixing plate (1) is bolted to the pneumatic and electric ring mounting plate (6) at the concentric position of the turntable (2), the middle part of the upper end of the pneumatic and electric ring mounting plate (6) is provided with a pneumatic and electric ring body (7), the pneumatic and electric ring body (7) is used for the pneumatic and electric connection of the cylinder (19), one end of the connecting rod (4) is fixedly connected to the driving block (9), the lower end of the driving block (9) is provided with a cam bearing (12), the lower end of the cam bearing (12) is bolted to the cylinder (19), the output end of the cylinder (19) is fixedly connected to two workpiece clamps (5), the turntable (2) The middle part of the upper end of the rotating disk (2) is radially fixedly connected to a linear guide rail (10) on both sides, the lower end of the cylinder (19) is slidably connected to the linear guide rail (10), the lower end of the fixed plate (1) is fixedly connected to the disc (8), the outer side of the disc (8) is provided with an annular groove (14), the lower end of the driving block (9) is provided with an arc groove (13), the upper end of the cam bearing (12) is placed inside the arc groove (13), the upper end of the cam bearing (12) is slidably connected in the annular groove (14), the arc groove (13) on the driving block (9) and the annular groove (14) on the disc (8) form a continuous annular groove when the rotating disk (2) is stationary, and the roller of the cam bearing (12) slides along the annular groove , ensuring that the workpiece clamping jaws (5) have no radial offset when the turntable (2) rotates, the lower end of the turntable (2) is installed on the workstation divider and can rotate around the center of the disk, the fixed plate (1) and the disc (8) are both provided with open grooves (15) on the same side as the drive block (9), the specifications and dimensions of the open grooves (15) are the same as the specifications and dimensions of the drive block (9), the groove width of the open grooves (15) is greater than the groove width of the annular slide groove (14), the pneumatic ring body (7) is provided with four-way air path interfaces and four-way circuit interfaces, the four-way air path interfaces of the pneumatic ring body (7) are respectively connected to the air paths of two groups of cylinders (19), and the cylinders (19) are controlled to extend and retract by an external air source to drive the workpiece clamping jaws (5) to open and close.

2. A disc workpiece feeding power mechanism according to claim 1, characterized in that: The upper end of the linear guide rail (10) is slidably connected to a slider (11), and the lower end of the cylinder (19) is fixedly connected to the slider (11).

3. The disc workpiece feeding power mechanism according to claim 1, characterized in that: The connecting rod (4) is in a "Z" shape.

4. The disc workpiece feeding power mechanism according to claim 1, characterized in that: A roller is provided at the upper end of the cam bearing (12) at a position inside the arc-shaped sliding groove (13), and the roller is engaged and rotatably connected with the cam bearing (12).

5. The disc workpiece feeding power mechanism according to claim 1, characterized in that: Four corners of the lower end surface of the fixing plate (1) are fixedly connected with upright posts, and the fixing plate (1) is mounted on the work surface via the four upright posts.

6. The disc workpiece feeding power mechanism according to claim 1, characterized in that: A plurality of anti-slip grooves are provided on the inner side of one end of the workpiece clamping jaw (5) away from the cylinder (19) to increase the friction force on the circular disc workpiece to prevent it from falling.

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