Switchable pressure head of servo press

Abstract

A switchable pressure head of a servo press comprises a pressure head sliding rail, the pressure head sliding rail comprises a supporting plate, the upper side of the supporting plate is fixedly connected with a stamping mechanism of the servo press, a rail is arranged on the lower side of the supporting plate, a pressure head sliding table is connected to the rail in a hanging mode, and a plurality of pressure heads of different specifications are arranged on the pressure head sliding table. The press-fitting device can be connected to a stamping mechanism of a universal servo press, press-fitting of different moments and materials is achieved through the press heads of different specifications, the situation that different servo presses are tediously switched for machining is avoided, and multi-specification flexible machining of a single press is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a switchable pressing head of a servo press. Background Art

[0002] A servo press, also known as a servo press or servo press assembly machine, utilizes servo control technology to achieve precision control. A servo press uses a servo motor as its power source, which drives the screw drive system. The servo motor offers high precision and responsiveness, precisely controlling the screw's position and speed according to the control system's instructions. During the machining process, the servo press uses pressure sensors to monitor and provide feedback on pressure changes in real time. The pressure signal is converted into an electrical signal and transmitted to the control system for processing and analysis. Based on the deviation between the preset pressure value and the feedback signal, the control system calculates the corresponding torque command and controls the torque output through the motor to maintain the required pressure during machining. A servo press primarily consists of a frame, die head, worktable, push rod, press plate, servo motor, motor controller, reduction gear, brake, position sensor, programmable controller, touch screen, working mechanism, and auxiliary mechanisms. These components work together to achieve the precise press assembly operation of the servo press. However, some complex parts require multiple press-fitting with different torques and materials during the production process. If a conventional servo press is used, multiple presses will be needed to press-fit in sequence, which requires a high installation space for the servo press, high press procurement costs, and a complex press-fitting process.

[0003] A servo press with application publication number CN111531005A discloses a servo press, comprising a base plate, a support table, four support rods, a cross plate, a loading table, a unloading table, a material taking and unloading mechanism, a material moving mechanism, a stamping mechanism, an inspection mechanism, and a control mechanism. The base plate is arranged horizontally, the support table is fixedly mounted on the upper part of the base plate, the four support rods are respectively fixedly and vertically mounted on the four corners of the upper part of the support table, the cross plate is horizontally and fixedly mounted on the upper ends of the four support rods, the loading table is fixedly mounted on the upper part of the base plate, and the loading table is located on one side of the support table, and a first station slot is also reserved on the upper part of the loading table, the unloading table is fixedly mounted on the upper part of the base plate, and the unloading table is located on the other side of the support table, and the material taking and unloading mechanism is fixedly mounted on the upper part of the base plate. The present invention has the functions of automatic loading, stamping, inspection, and unloading, has a high degree of intelligence, can effectively improve work efficiency and effectively reduce the labor intensity of staff. Utility Model Content

[0004] Some complex parts require multiple press-fitting with different torques and materials during production. If a conventional servo press is used, multiple presses will be needed to press-fit in sequence. This requires a high installation space for the servo press, the purchase cost of the press is high, and the press-fitting process is complicated.

[0005] To address the aforementioned issues, the present invention employs the following technical solution: a switchable ram for a servo press, comprising a ram slide rail, the ram slide rail including a support plate, the upper side of which is fixedly connected to the servo press's stamping mechanism, and a track provided on the underside of the support plate, to which a ram slide is suspended, upon which a plurality of rams are mounted. This utility model can be connected to the stamping mechanism of a general-purpose servo press, enabling press-fitting with different torques and materials using rams of different specifications, eliminating the tedious switching between different servo presses for processing and enabling flexible processing of multiple specifications with a single press.

[0006] As a further improvement of the present invention, a mortise and tenon embedded structure is provided on the support plate, which is fixedly connected to the hammer of the stamping mechanism, so that assembly and disassembly are convenient while ensuring the connection strength; at the same time, the lower end of the hammer of the stamping mechanism is an arc surface structure, which ensures the stability of the stamping force.

[0007] As a further improvement to the present invention, buffer blocks are provided at both ends of the ram slide rail to block and limit the ram slide. The buffer blocks are equipped with elastic structures to cushion the ram slide and are bolted to both ends of the ram slide rail. The ram slide rail is also equipped with a telescopic cylinder, which is connected to the ram slide to control its movement. A vertical limit cylinder is fixed to the support plate and can be extended to block and limit the ram slide. A return spring is provided on the ram, and the ram and ram slide are fixedly connected by bolts. The telescopic cylinder controls the movement of the ram slide to different positions. When the buffer blocker at the left end of the ram slide collides with the left end of the ram slide to achieve a blocking limit, the ram at the right end of the ram slide is in the middle of the ram slide and becomes the ram used by the stamping mechanism. When the buffer blocker at the right end of the ram slide collides with the right end of the ram slide to achieve a blocking limit, the ram at the left end of the ram slide is in the middle of the ram slide and becomes the ram used by the stamping mechanism. When the limit cylinder is extended, the ram limiter in the middle of the ram slide can be fixed in the middle of the ram slide, making it the ram used by the stamping mechanism. Through the cooperation of the first cylinder, the buffer blocker and the limit cylinder, the three rams on the ram slide can be precisely positioned and switched.

[0008] The beneficial effect of the present invention is that in the production process of complex parts, when faced with production needs that require multiple press-fitting of different torques and materials, multiple materials and different torque requirements can be pressed on the same servo press, which is convenient for construction personnel to construct single complex parts, reduces the process flow, and makes the press-fitting process simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is the main view of the utility model.

[0010] Figure 2 This is a cross-sectional view of the utility model.

[0011] In the figure, 1 is the hammer, 2 is the ram slide rail, 3 is the support plate, 4 is the track, 5 is the ram slide, 6 is the ram, 7 is the spring, 8 is the limit cylinder, 9 is the buffer blocker, 10 is the telescopic cylinder, and 11 is the infrared sensor. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below with reference to the accompanying drawings.

[0013] Example 1: A switchable ram of a servo press comprises a ram slide 2, the ram slide 2 comprises a support plate 3, the upper side of the support plate 3 is fixedly connected to the punching mechanism of the servo press, the lower side of the support plate 3 is provided with a track 4, the ram slide 5 is suspended on the track 4, and the ram slide 5 is provided with three rams 6 of different specifications. Servo presses are widely used in many industries such as automobiles, motors, electronics, home appliances, and machinery. In the automotive industry, servo presses are used for press-fitting of engine components, steering components, drive shaft components, etc.; in the motor industry, servo presses are used for press-fitting of micromotor components and motor components; in the electronics and home appliance industries, servo presses are used for press-fitting and riveting of circuit board components, electronic components, and home appliance accessories. In addition, servo presses are also suitable for other occasions that require precise CNC press-fitting displacement and press-fitting force. The working principle of a servo press is to drive a high-precision ball screw through a servo motor to perform precise press assembly operations. During the press assembly process, a servo motor precisely controls the rotation angle and speed of the ball screw according to preset programs and control instructions, thereby achieving precise position control and pressure output for the press head. A highly sensitive pressure sensor installed on the front end of the press head collects real-time pressure data, enabling precise pressure regulation and monitoring through a closed-loop control system. When using a servo press for machining, many factors need to be considered. Pressure requirements: Determine the sufficient pressure range the servo press can provide based on the nature of the workpiece and process requirements. Accuracy requirements: Focus on the servo press's pressure and position control accuracy to meet the needs of high-precision press assembly. Speed ​​and efficiency: Consider production efficiency requirements and select a servo press with high-speed response and rapid positioning capabilities. Control functions: Select a servo press with multi-stage pressure control, displacement control, and dwell time control based on process requirements. Stability and reliability: Consider the equipment's manufacturing quality, brand reputation, and customer reviews to select a product with high stability and reliability. Therefore, different servo press specifications are required for different machining scenarios and applications. The production process of some complex parts requires multiple press-fitting with different torques and materials. If a conventional servo press is used, multiple presses must be used in sequence, which requires a high installation space for the servo press, high press procurement costs, and a complex press-fitting process. The present invention can be connected to the punching mechanism of a general servo press, and different specifications of the press head 6 can be used to press-fit different torques and materials, avoiding the tedious switching between different servo presses for processing, and realizing flexible processing of multiple specifications with a single press.

[0014] As a further improvement of the present invention, a mortise and tenon embedded structure is provided on the support plate 3, which is fixedly connected to the hammer 1 of the stamping mechanism, so that it is convenient for assembly and disassembly while ensuring the connection strength; at the same time, the lower end of the hammer 1 of the stamping mechanism is a curved surface structure, which ensures the stability of the stamping force.

[0015] As a further improvement of the present invention, buffer blockers 9 are provided at both ends of the ram slide 2 to block and limit the ram slide 5. An elastic structure is provided inside the buffer blocker 9 to buffer the ram slide 5. The buffer blocker 9 is fixed to both ends of the ram slide 2 by bolts. A telescopic cylinder 10 is also provided on the ram slide 2, and the telescopic cylinder 10 is connected to the ram slide 5 to control the movement of the ram slide 5. A vertical limiting cylinder 8 is fixed on the support plate 3, and the limiting cylinder 8 can be extended to block and limit the ram slide 5. A reset spring 7 is provided on the ram 6, and the ram 6 is fixed to the ram slide 5 by bolts. The reset spring 7 allows the product to exit the ram 6 after the press-fitting is completed through the spring 7 to restore the deformation and allow the product component to remain on the support head.

[0016] The telescopic cylinder 10 is used to control the movement of the ram slide 5 to different positions. When the telescopic cylinder 10 is extended, the ram slide 5 moves to the left, and the buffer blocker 9 at the left end of the ram slide rail 2 collides with the left end of the ram slide 5 to achieve blocking and limiting. At this time, the ram 6 at the right end of the ram slide 5 is in the middle position of the ram slide rail 2, becoming the ram 6 used by the stamping mechanism; when the telescopic cylinder 10 is retracted, the buffer blocker 9 at the right end of the ram slide rail 2 collides with the right end of the ram slide 5 to achieve blocking and limiting. At this time, the ram 6 at the left end of the ram slide 5 is in the middle position of the ram slide rail 2 , becoming the ram 6 used by the stamping mechanism; when the ram 6 in the middle of the ram slide 5 needs to be used, first control the telescopic cylinder 10 to extend, the ram slide 5 moves to the left, the buffer blocker 9 at the left end of the ram slide rail 2 collides with the left end of the ram slide 5, and the blocking limit is achieved, and then control the limit cylinder 8 to extend. At this time, the telescopic cylinder 10 is controlled to shrink, the ram slide 5 moves to the right, and the right side of the ram slide 5 is blocked and limited by the limit cylinder 8. At this time, the ram 6 in the middle of the ram slide 5 is limited and fixed in the middle position of the ram slide rail 2, making it the ram 6 used by the stamping mechanism. Through the mutual cooperation of the telescopic cylinder 10, the buffer blocker 9 and the limit cylinder 8, the three rams 6 on the ram slide 5 can be accurately positioned and switched.

[0017] This utility model realizes the pressing of multiple materials and different torque requirements on the same servo press through multi-specification press heads. The present invention has high compatibility, which allows the switch to be compatible with multiple materials and torque requirements on the same press; at the same time, it reduces the working space. Conventional servo presses require three press sub-stations to process three materials, but now only one press is needed to operate at the same station; this can reduce the fatigue of operators, and compared with the original mode of three press sub-stations, it reduces the operators' walking back and forth and the operation of taking and placing materials; at the same time, it improves production efficiency, and compared with the original mode of three press sub-stations, it reduces the front station operators' walking back and forth and the operation of taking and placing materials multiple times, thereby reducing the production cycle by about 30s, and improving production efficiency.

[0018] Example 2: A switchable ram of a servo press comprises a ram slide 2, the ram slide 2 comprising a support plate 3, the upper side of the support plate 3 being fixedly connected to the punching mechanism of the servo press, the lower side of the support plate 3 being provided with a track 4, the track 4 being suspended by a ram slide 5, the ram slide 5 being provided with three rams 6 of different specifications. Servo presses are widely used in a variety of industries, including automobiles, motors, electronics, home appliances, and machinery. In the automotive industry, servo presses are used for press-fitting engine assemblies, steering gear assemblies, drive shaft assemblies, and other components; in the motor industry, servo presses are used for press-fitting micromotor assemblies and motor assemblies; in the electronics and home appliance industries, servo presses are used for press-fitting and riveting circuit board assemblies, electronic components, and home appliance accessories. In addition, servo presses are also suitable for other occasions requiring precise numerically controlled press-fitting displacement and press-fitting force. The working principle of a servo press is to perform precise press-fitting operations by driving a high-precision ball screw with a servo motor. During the press assembly process, a servo motor precisely controls the rotation angle and speed of the ball screw according to preset programs and control instructions, thereby achieving precise position control and pressure output for the press head. A highly sensitive pressure sensor installed on the front end of the press head collects real-time pressure data, enabling precise pressure regulation and monitoring through a closed-loop control system. When using a servo press for machining, many factors need to be considered. Pressure requirements: Determine the sufficient pressure range the servo press can provide based on the nature of the workpiece and process requirements. Accuracy requirements: Focus on the servo press's pressure and position control accuracy to meet the needs of high-precision press assembly. Speed ​​and efficiency: Consider production efficiency requirements and select a servo press with high-speed response and rapid positioning capabilities. Control functions: Select a servo press with multi-stage pressure control, displacement control, and dwell time control based on process requirements. Stability and reliability: Consider the equipment's manufacturing quality, brand reputation, and customer reviews to select a product with high stability and reliability. Therefore, different servo press specifications are required for different machining scenarios and applications. The production process of some complex parts requires multiple press-fitting with different torques and materials. If a conventional servo press is used, multiple presses must be used in sequence, which requires a high installation space for the servo press, high press procurement costs, and a complex press-fitting process. The present invention can be connected to the punching mechanism of a general servo press, and different specifications of the press head 6 can be used to press-fit different torques and materials, avoiding the tedious switching between different servo presses for processing, and realizing flexible processing of multiple specifications with a single press.

[0019] As a further improvement of the present invention, a mortise and tenon embedded structure is provided on the support plate 3, which is fixedly connected to the hammer 1 of the stamping mechanism, so that it is convenient for assembly and disassembly while ensuring the connection strength; at the same time, the lower end of the hammer 1 of the stamping mechanism is a curved surface structure, which ensures the stability of the stamping force.

[0020] As a further improvement of the present invention, buffer blockers 9 are provided at both ends of the ram slide 2 to block and limit the ram slide 5. An elastic structure is provided inside the buffer blocker 9 to buffer the ram slide 5. The buffer blocker 9 is fixed to both ends of the ram slide 2 by bolts. A telescopic cylinder 10 is also provided on the ram slide 2, and the telescopic cylinder 10 is connected to the ram slide 5 to control the movement of the ram slide 5. A vertical limiting cylinder 8 is fixed on the support plate 3, and the limiting cylinder 8 can be extended to block and limit the ram slide 5. A reset spring 7 is provided on the ram 6, and the ram 6 is fixed to the ram slide 5 by bolts. The reset spring 7 allows the product to exit the ram 6 after the press-fitting is completed through the spring 7 to restore the deformation and allow the product component to remain on the support head.

[0021] The telescopic cylinder 10 is used to control the movement of the ram slide 5 to different positions. When the telescopic cylinder 10 is extended, the ram slide 5 moves to the left, and the buffer blocker 9 at the left end of the ram slide rail 2 collides with the left end of the ram slide 5 to achieve blocking and limiting. At this time, the ram 6 at the right end of the ram slide 5 is in the middle position of the ram slide rail 2, becoming the ram 6 used by the stamping mechanism; when the telescopic cylinder 10 is retracted, the buffer blocker 9 at the right end of the ram slide rail 2 collides with the right end of the ram slide 5 to achieve blocking and limiting. At this time, the ram 6 at the left end of the ram slide 5 is in the middle position of the ram slide rail 2 , becoming the ram 6 used by the stamping mechanism; when the ram 6 in the middle of the ram slide 5 needs to be used, first control the telescopic cylinder 10 to extend, the ram slide 5 moves to the left, the buffer blocker 9 at the left end of the ram slide rail 2 collides with the left end of the ram slide 5, and the blocking limit is achieved, and then control the limit cylinder 8 to extend. At this time, the telescopic cylinder 10 is controlled to shrink, the ram slide 5 moves to the right, and the right side of the ram slide 5 is blocked and limited by the limit cylinder 8. At this time, the ram 6 in the middle of the ram slide 5 is limited and fixed in the middle position of the ram slide rail 2, making it the ram 6 used by the stamping mechanism. Through the mutual cooperation of the telescopic cylinder 10, the buffer blocker 9 and the limit cylinder 8, the three rams 6 on the ram slide 5 can be accurately positioned and switched.

[0022] As a further improvement of the present invention, unlike the first embodiment, an infrared sensor 11 is provided on the side of the ram 6 to detect the position of the ram 6. Press-fitting is only allowed when the ram 6 and the support head are aligned. The detection of the infrared sensor 11 is used to prevent production accidents caused by malfunctions such as misalignment of the slide rail and slide table, and to prevent accidents that may cause damage to the ram 6.

[0023] This utility model realizes the pressing of multiple materials and different torque requirements on the same servo press through multi-specification press heads. The present invention has high compatibility, which allows the switch to be compatible with multiple materials and torque requirements on the same press; at the same time, it reduces the working space. Conventional servo presses require three press sub-stations to process three materials, but now only one press is needed to operate at the same station; this can reduce the fatigue of operators, and compared with the original mode of three press sub-stations, it reduces the operators' walking back and forth and the operation of taking and placing materials; at the same time, it improves production efficiency, and compared with the original mode of three press sub-stations, it reduces the front station operators' walking back and forth and the operation of taking and placing materials multiple times, thereby reducing the production cycle by about 30s, and improving production efficiency.

[0024] The above specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the specific implementation structure and scope of the present invention. In fact, equivalent variations can be made based on the shape, structure, and design purpose of the present invention. Therefore, all equivalent variations made based on the shape, structure, and design purpose of the present invention should be included in the scope of protection of the present invention and should be protected by the present invention.

Claims

1. A switchable pressing head of a servo press, characterized in that: It includes a ram slide rail, which includes a support plate. The upper side of the support plate is fixedly connected to the punching mechanism of the servo press. The lower side of the support plate is provided with a track. The ram slide is suspended on the track. The ram slide is provided with several rams.

2. The switchable pressing head of the servo press according to claim 1, characterized in that: The support plate is provided with a mortise and tenon embedded structure which is fixedly connected with the hammer of the punching mechanism.

3. The switchable pressing head of the servo press according to claim 2, characterized in that: The lower end of the hammer is a curved surface structure.

4. The switchable pressing head of the servo press according to claim 1, characterized in that: Buffer blockers are provided at both ends of the pressure head slide rail to block and limit the pressure head slide.

5. The switchable pressing head of the servo press according to claim 1 or 3, characterized in that: The pressure head slide rail is also provided with a telescopic cylinder, which is connected to the pressure head slide to control the movement of the pressure head slide.

6. The switchable pressing head of the servo press according to claim 1, characterized in that: A vertical limiting cylinder is fixed on the support plate, and the limiting cylinder can be extended to block and limit the pressure head slide.

7. The switchable pressing head of the servo press according to claim 1, characterized in that: The pressure head is provided with a return spring, and the pressure head is fixedly connected to the pressure head slide by bolts.

8. The switchable pressing head of the servo press according to claim 4, characterized in that: The buffer blocker is provided with an elastic structure to buffer the pressure head slide, and the buffer blocker is fixed to both ends of the pressure head slide rail by bolts.

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