A fully automatic bolt press-fitting equipment

Abstract

The utility model discloses a full -automatic bolt press -mounting equipment belongs to press -mounting technical field, including frame, be equipped with bolt feeding system, press -mounting system, detection system and control system on the frame, the bolt feeding system includes vibrating disk and bolt conveying track, and vibrating disk installs at one side of frame, is equipped with electromagnetic vibrator inside, and the electromagnetic vibrator is connected with control system through the conducting wire, the bolt conveying track is the curved aluminum alloy channel, and the inlet end is connected with the output of vibrating disk, and the end extends to the just above of the position of waiting press -mounting, the press -mounting system is composed of press -mounting cylinder, press -mounting shaft, pressure head and guide sleeve, and press -mounting cylinder is fixed at the top of frame, and its piston rod projects downward and is fixedly connected with the upper end of press -mounting shaft, the guide sleeve is fixedly installed on the frame, and is located just above the position of waiting press -mounting, the press -mounting shaft passes through the guide sleeve vertically, and the pressure head is installed at the lower end of press -mounting shaft, and the pressure head shape is matched with bolt head.

Description

Technical Field

[0001] This utility model belongs to the field of press-fitting equipment technology, specifically relating to a fully automatic bolt press-fitting equipment. Background Technology

[0002] Bolt pressing is a common assembly process in industrial production. Traditional bolt pressing often relies on manual operation or semi-automated equipment, which presents several problems: First, manual pressing is inefficient and labor-intensive, making it difficult to meet the needs of large-scale production; second, manual operation is prone to quality issues such as loose or misaligned bolts, affecting product reliability and consistency; and third, existing automated equipment is complex in structure, expensive, and poorly adaptable to different bolt specifications and product components, making flexible adjustments difficult. To address these shortcomings, this invention aims to provide a fully automatic bolt pressing device with a reasonable structure, high degree of automation, and stable pressing quality. Summary of the Invention

[0003] To address the aforementioned problems, this utility model discloses a fully automatic bolt pressing device with a reasonable structure, reduced manual intervention, increased automation, and stable pressing quality.

[0004] To achieve the above objectives, the specific technical solution of this application is as follows: A fully automatic bolt pressing device includes a frame, on which a bolt feeding system, a pressing system, a detection system and a control system are installed; The frame is a cuboid frame structure; the bolt feeding system includes a vibratory feeder and a bolt conveying track. The vibratory feeder is installed on one side of the frame and has an electromagnetic vibrator inside. The electromagnetic vibrator is connected to the control system through a wire; the bolt conveying track is a curved aluminum alloy channel, with the inlet end connected to the output port of the vibratory feeder and the end extending directly above the position to be pressed. The pressing system consists of a pressing cylinder, a pressing shaft, a pressing head, and a guide sleeve. The pressing cylinder is fixed to the top of the frame, and its piston rod extends downward and is fixedly connected to the upper end of the pressing shaft. The guide sleeve is fixedly installed on the frame and located directly above the position to be pressed. The pressing shaft passes vertically through the guide sleeve, and the pressing head is installed at the lower end of the pressing shaft. The shape of the pressing head matches the bolt head. The detection system includes a bolt position sensor and a clamping force sensor. The bolt position sensor is mounted on the frame and located below the end of the bolt conveying track, and is fixed by a bracket. The clamping force sensor is installed between the pressure head and the guide sleeve and is fixed to the side wall of the guide sleeve by bolts. The control system uses a PLC controller, which is connected to the pressing cylinder, bolt position sensor and clamping force sensor through wires, and controls the action of the pressing cylinder according to the sensor signals.

[0005] Based on the above technical features, preferably, the vibratory plate is spiral-shaped, and the pitch of the spiral track gradually decreases, so that the bolts can be arranged in an orderly manner under the action of the electromagnetic vibrator and output along the spiral track to the inlet end of the bolt conveying track.

[0006] Based on the above technical features, preferably, the pressing shaft and the guide sleeve are in clearance fit, the pressing shaft can move up and down inside the guide sleeve, and the inner wall of the guide sleeve is smooth, reducing the friction force when the pressing shaft moves.

[0007] Based on the above technical features, the pressure head is cylindrical, with a groove at the lower end that matches the bolt head. The shape of the groove is consistent with the shape of the bolt head. The pressure head is fixedly connected to the lower end of the pressing shaft by a bolt.

[0008] Based on the above technical features, preferably, the bolt position sensor is a photoelectric sensor, with the transmitting end and the receiving end respectively installed on both sides of the end of the bolt conveying track, for detecting whether the bolt has reached the position to be pressed.

[0009] Based on the above technical features, preferably, the clamping force sensor is a strain gauge pressure sensor, which is installed on the connecting bracket between the pressure head and the guide sleeve. The connecting bracket is annular and sleeved on the pressing shaft. The clamping force sensor is connected to the control system through a signal line and transmits the detected clamping force signal to the control system in real time.

[0010] Compared with the prior art, the beneficial effects of this application are as follows: This application utilizes a vibratory feeder in the bolt feeding system to quickly and orderly arrange bolts, and automatically delivers the bolts to the pressing position via a conveyor track, eliminating the need for manual picking and placing of each bolt. The pressing system, driven by a cylinder, can efficiently complete the pressing action according to a preset program. The series of processes are closely connected and highly automated. Compared with manual pressing and simple semi-automatic equipment, the pressing volume per unit time is greatly increased, effectively helping to speed up production. The guide sleeve provides precise guidance for the press-fit shaft, ensuring that the press head presses down at a uniform speed along a straight line, resulting in even force on the bolt and upright press-fitting. On the other hand, the detection system monitors in real time, and the bolt position sensor accurately determines whether the bolt has reached the press-fitting position, avoiding omissions or misfitting. The clamping force sensor provides real-time feedback on the pressing force, and the control system dynamically adjusts the cylinder air pressure accordingly to ensure that the clamping force meets the process requirements, eliminating problems of over-tightening or over-loosening, and significantly improving the first-pass yield of the product. The parameters of the vibratory feeder and conveyor track can be flexibly adjusted according to common bolt specifications to adapt to the feeding of bolts of different sizes; the pressing stroke, pressing head shape and size of the pressing system are also adjustable. By changing the corresponding tooling fixtures and adjusting the control program parameters, it can be quickly switched to press-fitting operations that are suitable for different types of product parts, meeting the pressing needs of enterprises for multiple product lines and multiple specifications of bolts. One piece of equipment has a wider range of applications, reducing the enterprise's equipment investment and operating costs. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a fully automatic bolt pressing device according to the present invention; Figure 2 This is a schematic diagram of the working process of a fully automatic bolt pressing device according to this utility model; List of identifiers in attached diagrams: 1. Frame; 2. Shock-absorbing pad; 3. Vibratory feeder; 4. Bolt conveying track; 5. Pressing cylinder; 6. Pressing shaft; 7. Press head; 8. Guide sleeve; 9. Bolt position sensor; 10. Clamping force sensor; 11. Support. Detailed Implementation

[0012] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0013] It should be noted that the terms "upper," "lower," "left," "right," "front," and "rear" used in the following description refer to the directions shown in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] like Figure 1 As shown, a fully automatic bolt pressing device includes a frame 1, which is placed on a flat workshop floor to ensure its stability. Vibration damping pads 2 are installed at the four corners of the bottom of the frame 1, and the vibration damping pads 2 are fixedly connected to the frame 1 by bolts to reduce the impact of vibration during equipment operation on the ground and the surrounding environment.

[0015] The bolt feeding system includes a vibratory feeder 3 and a bolt conveying track 4. The vibratory feeder 3 is installed on one side of the frame 1, and the wires of the electromagnetic vibrator are connected to the control system. The inlet end of the bolt conveying track 4 is connected to the output port of the vibratory feeder 3, and the end of the bolt conveying track 4 is extended directly above the position to be pressed. The curvature and angle of the track are adjusted to ensure that the bolts can be smoothly conveyed to the pressing position.

[0016] The pressing cylinder 5 is fixed to the top of the frame 1, and the pressing cylinder 5 causes the piston rod to extend downward. The upper end of the pressing shaft 6 is fixedly connected to the piston rod of the pressing cylinder 5 to ensure a firm and reliable connection. The guide sleeve is fixed on the frame 1, located directly above the position to be pressed, and the pressing shaft 6 can pass vertically through the guide sleeve 8 and move smoothly up and down within the guide sleeve 8. The pressing head 7 is installed at the lower end of the pressing shaft 6. According to the head shape and size of the bolt to be pressed, a suitable pressing head 7 is selected, and its lower groove matches the bolt head. Finally, the pressing head 7 is fixedly connected to the pressing shaft 6 with bolts.

[0017] Bolt position sensor 9 is mounted on frame 1, located below the end of bolt conveying track 4, and fixed by bracket 11. The position and angle of the sensor are adjusted to accurately detect whether the bolt has reached the pressing position. Clamping force sensor 10 is mounted on the connecting bracket between pressure head 7 and guide sleeve 8. The connecting bracket is annular and sleeved on pressing shaft 6. Clamping force sensor 10 is fixed to the side wall of guide sleeve 8 by bolts, and the signal line of clamping force sensor 10 is connected to the control system.

[0018] The control system PLC controller is installed in a suitable position on the frame 1 and connected to the pressing cylinder 5, bolt position sensor 9, and clamping force sensor 10 via wires. The control system is debugged, and various parameters are set, such as the air pressure of the pressing cylinder 5, pressing speed, and clamping force threshold, to ensure that the control system can accurately control the action of the pressing cylinder 5 based on sensor signals, thereby achieving automatic bolt pressing and quality monitoring.

[0019] Working principle: Bolt feeding: Vibratory plate 3 vibrates under the action of electromagnetic vibrator, causing the bolts to be subjected to multi-directional vibration within the helical track. As the pitch of the helical track gradually decreases, the bolts gradually converge towards the center during vibration and are arranged in an orderly manner under the guidance of the track, eventually being output to the inlet end of bolt conveying track 4. During this process, the vibration frequency and amplitude of the electromagnetic vibrator can be adjusted by the control system to adapt to the feeding needs of bolts of different specifications.

[0020] Bolt delivery: Bolt delivery track 4 is a curved aluminum alloy channel. Its shape and angle design allow the bolts to slide or roll smoothly along the track to the position to be pressed under the influence of gravity and vibration. The surface of the delivery track should be kept smooth to reduce friction between the bolts and the track and ensure smooth bolt delivery.

[0021] Press-fitting: When the bolt reaches the press-fitting position, the bolt position sensor 9 detects its presence and sends a signal to the control system. The control system activates the press-fitting cylinder 5, whose piston rod drives the press-fitting shaft 6 and the press head 7 downwards. After the press head 7 contacts the bolt head, it continues to apply downward pressure, pressing the bolt into the product component. During the press-fitting process, the clamping force sensor 10 monitors the clamping force on the press-fitting shaft 6 in real time and transmits the signal to the control system. The control system precisely controls the pressing force by adjusting the air pressure of the press-fitting cylinder 5 according to a preset clamping force threshold, ensuring the firmness and consistency of the bolt press-fitting. When the clamping force reaches the set value, the control system stops the press-fitting cylinder 5, the press head 7 maintains pressure for a certain period of time, and then returns to its original position, completing one press-fitting cycle.

[0022] Bolt position sensor 9 employs a photoelectric sensor, detecting whether the bolt has reached the pressing position via an optical signal between the transmitter and receiver. When the bolt blocks the optical signal, the receiver receives no signal, triggering the sensor to send a bolt positioning signal to the control system. The clamping force sensor 10 uses a strain gauge pressure sensor, with a strain gauge as its core component. When the pressure head 7 applies pressure to the bolt, the pressure is transmitted to the strain gauge through the connecting bracket, causing deformation and a change in its resistance. The strain gauge is connected to a measuring circuit, and the change in resistance is converted into an electrical signal output, which is then processed and transmitted to the control system. The control system processes and analyzes the signals from bolt position sensor 9 and clamping force sensor 10 in real time. Based on the signal from bolt position sensor 9, it controls the start and stop of pressing cylinder 5, and adjusts the air pressure of pressing cylinder 5 based on the signal from clamping force sensor 10, achieving precise control of the pressing process and ensuring the stability and reliability of the pressing quality.

[0023] The equipment operates in a cyclical manner according to the above process, realizing continuous automatic bolt pressing.

[0024] In summary, this fully automatic bolt pressing equipment, through its ingenious structural design and advanced automation control technology, achieves high efficiency, precision, and stability in bolt pressing, and has good application prospects and market value.

[0025] It should be noted that the accompanying drawings merely illustrate the technical concept of the present invention and should not be used to limit the scope of protection of the present invention. For those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and all such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A fully automatic bolt pressing device, characterized in that: Includes a frame (1), on which a bolt feeding system, a pressing system, a detection system and a control system are provided; The frame (1) is a cuboid frame structure; the bolt feeding system includes a vibratory plate (3) and a bolt conveying track (4). The vibratory plate (3) is installed on one side of the frame (1) and has an electromagnetic vibrator inside. The electromagnetic vibrator is connected to the control system through a wire; the bolt conveying track (4) is a curved aluminum alloy channel. The inlet end is connected to the output port of the vibratory plate (3), and the end extends to the top of the position to be pressed. The pressing system consists of a pressing cylinder (5), a pressing shaft (6), a pressing head (7), and a guide sleeve (8). The pressing cylinder (5) is fixed on the top of the frame (1), and its piston rod extends downward and is fixedly connected to the upper end of the pressing shaft (6). The guide sleeve (8) is fixedly installed on the frame (1) and is located directly above the position to be pressed. The pressing shaft (6) passes vertically through the guide sleeve (8), and the pressing head (7) is installed at the lower end of the pressing shaft (6). The shape of the pressing head (7) matches the bolt head. The detection system includes a bolt position sensor (9) and a clamping force sensor (10). The bolt position sensor (9) is installed on the frame (1) and located below the end of the bolt conveying track (4), and is fixed by a bracket (11). The clamping force sensor (10) is installed between the pressure head (7) and the guide sleeve (8), and is fixed to the side wall of the guide sleeve (8) by bolts. The control system uses a PLC controller, which is connected to the press cylinder (5), bolt position sensor (9) and clamping force sensor (10) respectively through wires, and controls the action of the press cylinder (5) according to the sensor signals; The clamping force sensor (10) is a strain gauge pressure sensor, which is installed on the connecting bracket between the pressure head (7) and the guide sleeve (8). The connecting bracket is ring-shaped and sleeved on the pressing shaft (6). The clamping force sensor (10) is connected to the control system through a signal line and transmits the detected clamping force signal to the control system in real time.

2. The fully automatic bolt pressing equipment according to claim 1, characterized in that: The vibratory plate (3) is spiral in shape, and the pitch of the spiral track gradually decreases, so that the bolts can be arranged in an orderly manner under the action of the electromagnetic vibrator and output along the spiral track to the inlet end of the bolt conveying track (4).

3. The fully automatic bolt pressing equipment according to claim 1, characterized in that: The press-fit shaft (6) and the guide sleeve (8) are in clearance fit, and the press-fit shaft (6) can move up and down inside the guide sleeve (8).

4. The fully automatic bolt pressing equipment according to claim 1, characterized in that: The pressure head (7) is cylindrical, and the lower end is provided with a groove that matches the bolt head. The shape of the groove is consistent with the shape of the bolt head. The pressure head (7) is fixedly connected to the lower end of the press shaft (6) by bolts.

5. The fully automatic bolt pressing equipment according to claim 1, characterized in that: The bolt position sensor (9) is a photoelectric sensor, with the transmitting end and the receiving end installed on both sides of the end of the bolt conveying track (4).

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