An automatic unloading device for an automobile part machining die

Abstract

The application relates to the technical field of automobile part machining, in particular to an automatic unloading device for an automobile part machining die, which comprises a base, a guide mechanism, a flexible clamping assembly, a driving unit and a safety interlocking module. The guide mechanism is accurately moved along a guide column through a sliding block, so that positioning deviation is avoided; the flexible clamping assembly realizes stable clamping through an adsorption disc and a pressure sensor, so that part damage is prevented; the safety interlocking module realizes real-time monitoring of the running state through a photoelectric switch, so that the safety of the equipment is improved. In addition, a conveying belt with anti-skid protrusions is arranged below a discharging port, so that the parts are stably conveyed. The application can significantly improve the unloading efficiency and safety of the automobile part machining die and meet the intelligent manufacturing requirement.

Description

Technical Field

[0001] This utility model belongs to the technical field of automated mold processing equipment, specifically an automatic unloading device for automotive parts processing molds. Background Technology

[0002] In the automotive parts manufacturing process, after stamping and forming, the parts need to be unloaded from the mold. Efficient and safe unloading operations are crucial to production cycle and product quality. While current manual or semi-automatic unloading methods can complete the basic operations, they are labor-intensive and pose risks such as unstable part removal and damage to molds or parts, making it difficult to meet the high efficiency and high reliability requirements of modern intelligent manufacturing.

[0003] The "Automatic Unloading Punch Press" with publication number CN105107910B achieves unloading by driving the material handling linkage rod through the upper die. It has a compact structure and low failure rate, but the material handling action depends on the movement trajectory of the upper die, which limits its versatility. At the same time, the rigidly connected material handling component is prone to clamping damage or falling off when facing complex curved surface parts, and it lacks an independent guiding mechanism, which affects the repeatability of positioning accuracy.

[0004] The "Automatic Loading and Unloading Machine" disclosed in CN106477319B uses a pneumatic clamping arm to handle workpieces, achieving a high degree of automation. However, its clamping force control is not precise enough, easily leading to scratches or deformation on the surface of parts. Furthermore, the device lacks a design for precise alignment with the mold cavity, potentially causing interference with the mold edge during mold unloading, posing a risk of collision damage. The aforementioned technology still requires improvement in adaptability, safety, and positioning accuracy. Therefore, there is an urgent need for an automated unloading device for automotive parts processing molds that is highly compatible and reliable to address these existing problems. Utility Model Content

[0005] This utility model relates to an automatic unloading device for automotive parts processing molds, comprising a base, a guide mechanism, a flexible clamping assembly, a drive unit, and a safety interlock module. The guide mechanism is fixedly mounted on the top of the base, and the flexible clamping assembly is slidably connected inside the guide mechanism. The flexible clamping assembly achieves lifting and extending / retracting movements via the drive unit. The safety interlock module is located on one side of the base and electrically connected to the drive unit.

[0006] The guiding mechanism includes guide posts, limiting grooves, sliders, and buffer pads. Guide posts are symmetrically fixed to the top of the base. Limiting grooves are formed axially on the outer wall of the guide posts. The sliders are sleeved on the outside of the guide posts, with their inner walls embedded in the limiting grooves to form a sliding fit. A buffer pad is adhered to the bottom of the slider. The buffer pad is made of highly elastic rubber material with a thickness of 5mm to 10mm to absorb the impact force generated when the slider moves rapidly.

[0007] The flexible clamping assembly includes clamping arms, an adsorption plate, a pressure sensor, connecting rods, and a rotating shaft. The clamping arms are symmetrically arranged on both sides of the slider and are rotatably connected to the slider via the rotating shaft. An adsorption plate is installed at the end of each clamping arm, and the surface of the adsorption plate has multiple micropores for adsorbing parts through negative pressure. The middle sections of the clamping arms are hinged together by connecting rods, and a pressure sensor is installed at the intersection of the connecting rods to detect the clamping force between the clamping arms.

[0008] The drive unit includes a servo motor, a lead screw, a nut seat, and a transmission belt. The servo motor is fixedly mounted on one side of the base. A lead screw is fixedly connected to the top of the servo motor's output shaft. The lead screw passes through the nut seat and is threadedly connected to it. The top of the nut seat is fixedly connected to the bottom of the slider. The output shaft of the servo motor and the lead screw are synchronously driven through the transmission belt. The two ends of the lead screw are rotatably connected to the base through bearing seats. The inner wall of the bearing seats is inlaid with ball bearings to reduce frictional resistance and improve transmission accuracy.

[0009] The safety interlock module includes a photoelectric switch, a signal processor, and an alarm. The photoelectric switch is installed on one side of the base and is used to detect the operating status of the flexible clamping assembly. The signal processor is electrically connected to the photoelectric switch and is used to receive and process the signals emitted by the photoelectric switch. The alarm is electrically connected to the signal processor and is used to issue an alarm when an abnormal situation is detected.

[0010] A discharge port is provided on one side of the base, and a conveyor belt is provided below the discharge port. The two ends of the conveyor belt are fixedly connected to the base by brackets. The surface of the conveyor belt is provided with anti-slip protrusions, the height of which is 2mm to 5mm, to prevent parts from slipping during conveying.

[0011] The adsorption disk has a vacuum channel inside. One end of the vacuum channel is connected to an external vacuum pump, and the other end is connected to the micropores on the surface of the adsorption disk. The diameter of the vacuum channel is 3mm to 8mm to ensure uniform distribution of adsorption force.

[0012] The surface of the clamping arm is covered with a flexible protective layer made of polyurethane material with a thickness of 1 mm to 3 mm, which is used to protect the surface of the part from scratches or deformation.

[0013] The technical advantages of this invention are as follows: By setting up an independently driven guiding mechanism, the slider moves precisely along the guide post, avoiding the positioning deviation problem caused by the lack of guidance in traditional unloading devices; the adsorption plate in the flexible clamping assembly, combined with a pressure sensor, achieves stable clamping of parts of different shapes and sizes, solving the damage risk caused by rigid clamping; the safety interlock module monitors the equipment's operating status in real time through a photoelectric switch, promptly detecting potential faults and improving the equipment's safety and reliability. The combined effect of these technical means significantly improves the efficiency and safety of unloading from automotive parts processing molds, meeting the needs of modern intelligent manufacturing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle.

[0016] Figure 3 This is a schematic diagram of the drive unit structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the safety interlock module structure of this utility model.

[0018] The attached figures are labeled as follows:

[0019] 1. Base; 2. Guide mechanism; 3. Flexible clamping assembly; 4. Drive unit; 5. Safety interlock module; 6. Discharge port; 7. Conveyor belt; 8. Support; 9. Anti-slip protrusion; 21. Guide column; 22. Limiting groove; 23. Slider; 24. Buffer pad; 31. Clamping arm; 32. Adsorption plate; 33. Pressure sensor; 34. Connecting rod; 35. Rotating shaft; 36. Vacuum channel; 37. Flexible protective layer; 41. Servo motor; 42. Lead screw; 43. Nut seat; 44. Transmission belt; 45. Bearing seat; 51. Photoelectric switch; 52. Signal processor; 53. Alarm. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Specific implementation examples are given below.

[0022] This utility model relates to an automatic unloading device for automotive parts processing molds, the overall structure of which is as follows: Figure 1As shown, the device includes a base 1, a guide mechanism 2, a flexible clamping assembly 3, a drive unit 4, and a safety interlock module 5. The base 1 serves as the supporting foundation for the entire device. The guide mechanism 2 is bolted to its top, and the flexible clamping assembly 3 is slidably connected inside the guide mechanism 2. The flexible clamping assembly 3 achieves lifting and telescopic movements via the drive unit 4. The safety interlock module 5 is located on one side of the base 1 and electrically connected to the drive unit 4. A discharge port 6 is provided on one side of the base 1, and a conveyor belt 7 is installed below the discharge port 6. Both ends of the conveyor belt 7 are fixedly connected to the base 1 via brackets 8, and anti-slip protrusions 9 are distributed on the surface of the conveyor belt 7.

[0023] The specific structure of guide mechanism 2 is as follows: Figure 2 As shown, the assembly includes a guide post 21, a limiting groove 22, a slider 23, and a buffer pad 24. The guide post 21 is symmetrically fixed to the top of the base 1. A limiting groove 22 is formed along the axial direction on the outer wall of the guide post 21. The slider 23 is sleeved on the outside of the guide post 21, and its inner wall is embedded in the limiting groove 22 to form a sliding fit. A buffer pad 24 is bonded to the bottom of the slider 23. The buffer pad 24 is made of highly elastic rubber material with a thickness of 5mm to 10mm. When the slider 23 moves up and down along the guide post 21, the limiting groove 22 restricts the movement trajectory of the slider 23, ensuring that the slider 23 can only slide along the axial direction of the guide post 21 without rotation or displacement. The buffer pad 24 absorbs impact force when the slider 23 moves rapidly, preventing equipment damage or component damage due to collisions. The sliding fit between the guide post 21 and the slider 23 allows the flexible clamping assembly 3 to move precisely along the guide post 21, thereby achieving precise positioning during the unloading process.

[0024] The specific structure of the flexible clamping component 3 is as follows: Figure 3 As shown, the device includes clamping arms 31, an adsorption plate 32, a pressure sensor 33, a connecting rod 34, and a rotating shaft 35. The clamping arms 31 are symmetrically arranged on both sides of the slider 23 and are rotatably connected to the slider 23 via the rotating shaft 35. An adsorption plate 32 is mounted at the end of each clamping arm 31. The surface of the adsorption plate 32 has multiple micropores, and a vacuum channel 36 is provided inside. One end of the vacuum channel 36 is connected to an external vacuum pump, and the other end communicates with the micropores on the surface of the adsorption plate 32. The diameter of the vacuum channel 36 is 3mm to 8mm. The clamping arms 31 are hinged together in the middle by the connecting rod 34, and the pressure sensor 33 is mounted at the intersection of the connecting rods 34. The surface of the clamping arms 31 is covered with a flexible protective layer 37, which is made of polyurethane material and has a thickness of 1mm to 3mm. When the adsorption plate 32 contacts the part, the external vacuum pump is activated, generating negative pressure on the surface of the adsorption plate 32 through the vacuum channel 36, thereby adsorbing and fixing the part. Pressure sensor 33 monitors the clamping force between clamping arms 31 in real time to ensure that the clamping force is appropriate and to avoid deformation of the part due to excessive clamping force or detachment of the part due to insufficient clamping force. Flexible protective layer 37 protects the surface of the part from scratches or indentations during clamping.

[0025] The specific structure of drive unit 4 is as follows: Figure 4 As shown, the system includes a servo motor 41, a lead screw 42, a nut seat 43, and a transmission belt 44. The servo motor 41 is fixedly mounted on one side of the base 1. The lead screw 42 is fixedly connected to the top of the output shaft of the servo motor 41. The lead screw 42 passes through the nut seat 43 and is threadedly connected to it. The top of the nut seat 43 is fixedly connected to the bottom of the slider 23. The output shaft of the servo motor 41 and the lead screw 42 are synchronously driven through the transmission belt 44. Both ends of the lead screw 42 are rotatably connected to the base 1 through bearing seats 45, the inner wall of which is inlaid with ball bearings. After the servo motor 41 starts, it drives the lead screw 42 to rotate via the transmission belt 44. When the lead screw 42 rotates, the nut seat 43 moves along the axial direction of the lead screw 42, thereby driving the slider 23 to move up and down along the guide post 21. The ball bearings reduce the frictional resistance between the lead screw 42 and the bearing seat 45, improve transmission accuracy, and ensure smooth movement and accurate positioning of the slider 23.

[0026] The specific structure of safety interlock module 5 is as follows: Figure 4 As shown, the system includes a photoelectric switch 51, a signal processor 52, and an alarm 53. The photoelectric switch 51 is mounted on one side of the base 1 and is used to detect the operating status of the flexible clamping assembly 3. The signal processor 52 is electrically connected to the photoelectric switch 51 and is used to receive and process the signals emitted by the photoelectric switch 51. The alarm 53 is electrically connected to the signal processor 52. When the photoelectric switch 51 detects an abnormal operation of the flexible clamping assembly 3, the signal processor 52 receives and analyzes the signal. If a fault is confirmed, the alarm 53 is triggered to sound an alarm. The photoelectric switch 51 monitors the position and movement status of the flexible clamping assembly 3 in real time through photoelectric signals, and the signal processor 52 performs logical judgments on the received signals to ensure the safe and reliable operation of the equipment.

[0027] A discharge port 6 is located on one side of the base 1. A conveyor belt 7 is installed below the discharge port 6. Both ends of the conveyor belt 7 are fixedly connected to the base 1 via brackets 8. Anti-slip protrusions 9 are distributed on the surface of the conveyor belt 7, with a height of 2mm to 5mm. When the flexible clamping assembly 3 adsorbs and moves the part above the discharge port 6, the adsorption plate 32 releases negative pressure, and the part falls off the adsorption plate 32 and onto the surface of the conveyor belt 7. The conveyor belt 7 is driven by a motor, and the anti-slip protrusions 9 prevent the part from slipping during the conveying process, ensuring that the part is smoothly transported to the next process.

[0028] The working process of this utility model is as follows: After the servo motor 41 starts, it drives the lead screw 42 to rotate through the transmission belt 44. When the lead screw 42 rotates, the nut seat 43 moves along the axial direction of the lead screw 42, thereby driving the slider 23 to move up and down along the guide post 21. During the movement of the slider 23, the clamping arm 31 moves to the top of the part. After the adsorption plate 32 contacts the part, the external vacuum pump starts and generates negative pressure on the surface of the adsorption plate 32 through the vacuum channel 36, adsorbing and fixing the part. The pressure sensor 33 detects the clamping force between the clamping arms 31 in real time to ensure that the clamping force is appropriate. After adsorption is completed, the servo motor 41 rotates in reverse, driving the slider 23 to move upward and move the part to the top of the discharge port 6. The adsorption plate 32 releases the negative pressure, and the part falls off the adsorption plate 32 and onto the surface of the conveyor belt 7. The conveyor belt 7 is driven by the motor to transport the part to the next process. The photoelectric switch 51 monitors the operating status of the flexible clamping assembly 3 in real time. If an abnormality is detected, the signal processor 52 receives and analyzes the signal and triggers the alarm 53 to issue an alarm.

[0029] The above embodiments describe in detail the specific structure and working principle of this utility model. The connection relationship, positional relationship and mutual cooperation relationship between the components are fully explained to ensure that those skilled in the art can implement the technical solution according to the contents of the specification.

[0030] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the implementation principle of this utility model is provided in conjunction with specific application scenarios.

[0031] Firstly, during the automotive parts processing, after the stamping or forming process is completed, the parts typically remain inside the mold cavity. At this time, the servo motor 41 starts, and its output shaft drives the lead screw 42 to rotate via the transmission belt 44. Since the lead screw 42 and the nut seat 43 are threadedly connected, the rotational motion of the lead screw 42 is converted into linear movement of the nut seat 43 along the axial direction of the lead screw 42. The top of the nut seat 43 is fixedly connected to the bottom of the slider 23, thereby driving the slider 23 to move up and down along the guide post 21. The outer wall of the guide post 21 is provided with a limiting groove 22, and the inner wall of the slider 23 is embedded in the limiting groove 22 to form a sliding fit, ensuring that the slider 23 can only move along the axial direction of the guide post 21 without deviation or rotation. This structural design effectively avoids the positioning deviation problem caused by the lack of an independent guiding mechanism in traditional unloading devices. At the same time, the buffer pad 24 bonded to the bottom of the slider 23 absorbs the impact force during rapid movement, reducing the risk of equipment vibration and parts damage.

[0032] Subsequently, when the slider 23 moves the flexible clamping assembly 3 above the mold, the clamping arm 31 adjusts its angle via the rotating shaft 35, bringing the adsorption plate 32 into contact with the part surface. The adsorption plate 32 has a vacuum channel 36 inside. After the external vacuum pump is activated, negative pressure is generated on the surface of the adsorption plate 32 through the vacuum channel 36, firmly adsorbing the part. Multiple micropores distributed on the surface of the adsorption plate 32 can evenly distribute the adsorption force, thus adapting to parts of different shapes and sizes and avoiding excessive local pressure that could cause part deformation. Simultaneously, the clamping arms 31 are hinged together in the middle by a connecting rod 34. A pressure sensor 33 installed at the intersection of the connecting rods 34 detects the clamping force between the clamping arms 31 in real time. If the clamping force exceeds the preset range, the system automatically adjusts the negative pressure value of the adsorption plate 32 to ensure a moderate clamping force, preventing the part from falling off due to insufficient clamping force or damaging the part due to excessive clamping force. Furthermore, the flexible protective layer 37 covering the surface of the clamping arms 31 further protects the part surface from scratches or indentations.

[0033] After adsorption is complete, the servo motor 41 reverses its rotation, driving the lead screw 42 to rotate in the opposite direction via the transmission belt 44, thereby causing the nut seat 43 to move upward along the lead screw 42. This action causes the slider 23 and its flexible clamping assembly 3 to rise as a whole, removing the part from the mold cavity. During this process, the photoelectric switch 51 monitors the position and operating status of the flexible clamping assembly 3 in real time and transmits the signal to the signal processor 52. The signal processor 52 performs logical judgment on the received signal. If an abnormality is detected, such as the slider 23 being stuck or the adsorption plate 32 not completely adsorbing the part, the alarm 53 is triggered to sound an alarm, reminding the operator to handle the situation promptly. This safety interlock mechanism significantly improves the safety and reliability of the equipment operation.

[0034] Next, when the flexible clamping assembly 3 moves the part above the discharge port 6, the suction plate 32 releases negative pressure, and the part falls off the suction plate 32 and onto the surface of the conveyor belt 7. The conveyor belt 7 is driven by a motor, and the anti-slip protrusions 9 distributed on its surface effectively prevent the part from slipping during the conveying process, ensuring that the part is smoothly transported to the next process. The height of the anti-slip protrusions 9 is 2mm to 5mm, which provides sufficient friction without damaging the surface of the part.

[0035] In the above steps, the coordinated work between the components enables efficient and safe unloading of parts from the mold. For example, the guide mechanism 2, through the cooperation of the limiting groove 22 and the slider 23, ensures the precise movement of the flexible clamping assembly 3; the flexible clamping assembly 3, through the combined design of the adsorption plate 32, the pressure sensor 33, and the flexible protective layer 37, solves the problem of part damage that may be caused by rigid clamping; the safety interlock module 5, through the linkage of the photoelectric switch 51, the signal processor 52, and the alarm 53, improves the safety and stability of equipment operation. These technical means work together to not only meet the requirements of modern intelligent manufacturing for high efficiency and high reliability, but also significantly reduce the need for manual intervention and improve the level of production automation.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic unloading device for automotive parts processing molds, characterized in that, The device includes a base (1), a guide mechanism (2), a flexible clamping assembly (3), a drive unit (4), and a safety interlock module (5). The guide mechanism (2) is fixedly installed on the top of the base (1). The flexible clamping assembly (3) is slidably connected inside the guide mechanism (2). The flexible clamping assembly (3) realizes lifting and telescopic movements through the drive unit (4). The safety interlock module (5) is located on one side of the base (1) and is electrically connected to the drive unit (4).

2. The automatic unloading device for automotive parts processing molds according to claim 1, characterized in that, The guiding mechanism (2) includes a guide post (21), a limiting groove (22), a slider (23), and a buffer pad (24). The top of the base (1) is symmetrically fixed with the guide post (21). The outer wall of the guide post (21) is provided with a limiting groove (22) along the axial direction. The slider (23) is sleeved on the outside of the guide post (21), and the inner wall of the slider (23) is embedded in the limiting groove (22) to form a sliding fit. The bottom of the slider (23) is bonded with a buffer pad (24). The buffer pad (24) is made of high elastic rubber material with a thickness of five to ten millimeters.

3. The automatic unloading device for automotive parts processing molds according to claim 1, characterized in that, The flexible clamping assembly (3) includes a clamping arm (31), an adsorption plate (32), a pressure sensor (33), a connecting rod (34), and a rotating shaft (35). The clamping arm (31) is symmetrically arranged on both sides of the slider (23) and is rotatably connected to the slider (23) through the rotating shaft (35). An adsorption plate (32) is installed at the end of the clamping arm (31). Multiple microholes are distributed on the surface of the adsorption plate (32). The middle part of the clamping arm (31) is hinged to each other through the connecting rod (34). A pressure sensor (33) is installed at the intersection of the connecting rod (34).

4. The automatic unloading device for automotive parts processing molds according to claim 1, characterized in that, The drive unit (4) includes a servo motor (41), a lead screw (42), a nut seat (43), and a transmission belt (44). The servo motor (41) is fixedly installed on one side of the base (1). The lead screw (42) is fixedly connected to the top of the output shaft of the servo motor (41). The lead screw (42) passes through the nut seat (43) and is threadedly connected to the nut seat (43). The top of the nut seat (43) is fixedly connected to the bottom of the slider (23). The output shaft of the servo motor (41) is synchronously driven with the lead screw (42) through the transmission belt (44).

5. The automatic unloading device for automotive parts processing molds according to claim 1, characterized in that, The safety interlock module (5) includes a photoelectric switch (51), a signal processor (52), and an alarm (53). The photoelectric switch (51) is installed on one side of the base (1). The signal processor (52) is electrically connected to the photoelectric switch (51), and the alarm (53) is electrically connected to the signal processor (52).

6. The automatic unloading device for automotive parts processing molds according to claim 1, characterized in that, The base (1) has a discharge port (6) on one side, and a conveyor belt (7) is provided below the discharge port (6). The two ends of the conveyor belt (7) are fixedly connected to the base (1) through the bracket (8). Anti-slip protrusions (9) are distributed on the surface of the conveyor belt (7), and the height of the anti-slip protrusions (9) is two to five millimeters.

7. The automatic unloading device for automotive parts processing molds according to claim 3, characterized in that, The adsorption disk (32) is provided with a vacuum channel (36) inside. One end of the vacuum channel (36) is connected to an external vacuum pump, and the other end is connected to the micropores on the surface of the adsorption disk (32). The diameter of the vacuum channel (36) is three to eight millimeters.

8. The automatic unloading device for automotive parts processing molds according to claim 3, characterized in that, The surface of the clamping arm (31) is covered with a flexible protective layer (37), which is made of polyurethane material and has a thickness of one to three millimeters.

9. An automatic unloading device for automotive parts processing molds according to claim 4, characterized in that, The two ends of the lead screw (42) are rotatably connected to the base (1) through bearing seats (45), and the inner wall of the bearing seats (45) is inlaid with ball bearings.

10. An automatic unloading device for automotive parts processing molds according to claim 6, characterized in that, The conveyor belt (7) is driven by a motor to transport parts to the next process.

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