Electric press

Abstract

The utility model relates to the technical field of pressure equipment, in particular to an electric press which comprises a frame, a pressure applying mechanism and a pressure bearing mechanism, the pressure applying mechanism and the pressure bearing mechanism are arranged on the frame, the pressure bearing mechanism is used for bearing a workpiece to be machined, and the pressure applying mechanism is arranged opposite to the pressure bearing mechanism and can move towards the pressure bearing mechanism. The processing mechanism is used for processing a to-be-processed workpiece on the pressure-bearing mechanism; the pressure applying mechanism comprises a jack; the rocker is connected with the power input end of the jack and used for controlling the jack to extend; the driving assembly comprises a motor and a transmission unit, one end of the transmission unit is connected with the power output end of the motor, the other end of the transmission unit is connected with the rocker, and therefore the motor can drive the rocker to swing in a reciprocating mode through the transmission unit.

Description

Technical Field

[0001] This utility model relates to the field of pressure equipment technology, and in particular to an electric press. Background Technology

[0002] Presses are used for assembling, disassembling, or conducting pressure tests on various workpieces, and are widely used in the processing of motors, bearings, and other components. Presses include hydraulic presses and lightweight presses. While hydraulic presses are more expensive, lightweight presses can still process some workpieces using the pressure of jacks. Furthermore, lightweight presses offer significant advantages for situations requiring individual workpiece processing: such as lower cost, smaller footprint, and manually controllable pressure.

[0003] Currently available lightweight presses consist of a frame and pressure-applying and pressure-bearing mechanisms mounted on the frame. The pressure-bearing mechanism supports the workpiece to be processed, while the pressure-applying mechanism applies pressure to the workpiece via jacks to complete the assembly, disassembly, or pressure testing of the workpiece. However, current lightweight presses require manual pressing of the jack levers during operation, which is labor-intensive and affects work efficiency. Utility Model Content

[0004] This utility model provides an electric press that can effectively save manpower and improve work efficiency.

[0005] This application provides an electric press, including a frame and a pressure-applying mechanism and a pressure-bearing mechanism disposed on the frame. The pressure-bearing mechanism is used to carry the workpiece to be processed. The pressure-applying mechanism is disposed opposite to the pressure-bearing mechanism and can move toward the pressure-bearing mechanism to complete the processing of the workpiece to be processed on the pressure-bearing mechanism. The pressure-applying mechanism includes: a jack; a rocker arm connected to the power input end of the jack for controlling the extension of the jack; and a drive assembly including a motor and a transmission unit. One end of the transmission unit is connected to the power output end of the motor, and the other end is connected to the rocker arm, so that the motor can drive the rocker arm to swing back and forth through the transmission unit.

[0006] In one possible implementation, a vertical beam is provided on the frame, and the pressure applying mechanism further includes: a sliding plate that slides with the vertical beam; and a mounting plate that is detachably connected to the sliding plate; wherein, a jack is provided on the sliding plate, the power output end of the jack is connected to the frame, and the drive component is provided on the mounting plate.

[0007] In one possible implementation, the transmission unit includes: a crank connected to the power output end of a motor; and a connecting rod assembly, one end of which is rotatably connected to the crank and the other end of which is rotatably connected to a rocker arm.

[0008] In one possible implementation, the connecting rod assembly includes a linear bearing mounted on a mounting plate; a connecting rod, one end of which is rotatably connected to a crank; and a drive shaft that slides with the linear bearing, one end of which is rotatably connected to a rocker arm, and the other end of which is rotatably connected to the end of the connecting rod away from the crank.

[0009] In one possible implementation, a groove and an opening communicating with the groove are provided at one end of the drive shaft adjacent to the crank; a buckle is provided on the rocker arm, and the buckle can be engaged into the groove through the opening. The buckle includes a first state of being engaged into the groove and a second state of being disengaged from the groove.

[0010] In one possible implementation, the slot extends along the length of the drive shaft, and the opening is connected to the middle of the slot.

[0011] In one possible implementation, a handle is provided at the end of the joystick away from the jack.

[0012] In one possible implementation, the jack's power input end is equipped with a tube, and the rocker arm is inserted into the tube.

[0013] In one possible implementation, the pressure-applying mechanism also includes an elastic element, one end of which is connected to the frame and the other end to a sliding plate, for driving the jack to reset after pressure relief.

[0014] In one possible implementation, multiple sets of adjustment holes are provided on the vertical beam along the extension direction, and pins are inserted into the adjustment holes to support the pressure-bearing mechanism.

[0015] The electric press provided by this utility model outputs power through a motor, which drives a rocker arm to swing back and forth through a transmission unit. The rocker arm acts on the power input end of the jack, thereby causing the jack to extend and complete the processing of the workpiece. This can effectively save manpower and improve work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an electric press provided by this utility model.

[0018] Figure 2 This is a side view of an electric press provided by this utility model.

[0019] Figure 3 yes Figure 2 The diagram shows a partially enlarged structural schematic of point B on the electric press shown.

[0020] Figure 4 This is a three-dimensional structural diagram of an electric press provided by this utility model from another perspective.

[0021] Figure 5 This is a schematic diagram of the planar structure of an electric press provided by this utility model.

[0022] Figure label:

[0023] 1. Frame; 11. Vertical beam; 12. Adjustment hole; 13. Pin;

[0024] 2. Pressure applying mechanism; 21. Jack; 211. Insertion tube; 22. Rocker arm; 221. Buckle; 222. Handle; 23. Drive assembly; 231. Motor; 232. Crank; 233. Connecting rod assembly; 2331. Linear bearing; 2332. Connecting rod; 2333. Drive shaft; 23331. Slot; 23332. Opening; 24. Sliding plate; 25. Mounting plate; 26. Elastic element;

[0025] 3. Pressure-bearing mechanism. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The following is combined with Figures 1-5 This invention describes an electric press, comprising a frame 1 and a pressure-applying mechanism 2 and a pressure-bearing mechanism 3 disposed on the frame 1. The pressure-bearing mechanism 3 is used to carry the workpiece to be processed. The pressure-applying mechanism 2 is disposed opposite to the pressure-bearing mechanism 3 and can move toward the pressure-bearing mechanism 3 to complete the processing of the workpiece to be processed on the pressure-bearing mechanism 3. The pressure-applying mechanism 2 includes: a jack 21; a rocker arm 22 connected to the power input end of the jack 21 for controlling the extension of the jack 21; and a drive assembly 23 including a motor 231 and a transmission unit. One end of the transmission unit is connected to the power output end of the motor 231, and the other end is connected to the rocker arm 22, so that the motor 231 can drive the rocker arm 22 to swing back and forth through the transmission unit.

[0028] In this invention, the motor 231 outputs power, which drives the rocker arm 22 to swing back and forth through the transmission unit. The rocker arm 22 acts on the power input end of the jack 21, thereby causing the jack 21 to extend and complete the processing of the workpiece. This can effectively save manpower and improve work efficiency.

[0029] In the specific working process, the pressure-bearing mechanism 3 first supports the workpiece to be processed, and the pressure-applying mechanism 2 moves towards the pressure-bearing mechanism 3 through the support provided by the frame 1. The working principle of the pressure-applying mechanism 2 is as follows: the motor 231 drives the rocker arm 22 to swing back and forth through the transmission unit. The swinging motion of the rocker arm 22 directly drives the power input end of the jack 21, thereby controlling the extension motion of the jack 21. This design ultimately converts the rotational motion of the motor 231 into the linear motion of the jack 21, realizing automated operation. In practical applications, such as bearing press-fitting scenarios, this design completely replaces the traditional manual operation of the jack 21. The operator only needs to place the workpiece in place and start the motor 231 to complete the entire press-fitting process. This automated design not only significantly improves work efficiency but also ensures the stability and consistency of the press-fitting process. Especially in mass production, this design can work continuously and stably, avoiding the fatigue problems that are prone to occur with manual operation. At the same time, by controlling the operating parameters of the motor 231, the pressure can be precisely controlled to ensure processing quality.

[0030] In some embodiments, a vertical beam 11 is provided on the frame 1, and the pressure applying mechanism 2 further includes: a sliding plate 24, which slides in cooperation with the vertical beam 11; and a mounting plate 25, which is detachably connected to the sliding plate 24; wherein, a jack 21 is provided on the sliding plate 24, the power output end of the jack 21 is connected to the frame 1, and the drive assembly 23 is provided on the mounting plate 25.

[0031] In this invention, a jack 21 is mounted on a sliding plate 24. The base of the jack 21 is fixedly connected to the sliding plate 24, and the power output end of the jack 21 is connected to the top crossbeam of the frame 1, thereby enabling the sliding plate 24 to rise and fall through the extension and retraction of the jack 21. A pressure rod is provided at the bottom of the sliding plate 24, which applies pressure to the workpiece for processing. The pressure rod is detachably connected to the sliding plate 24, allowing for the replacement of different types of pressure rods according to different workpieces. The vertical beam 11 not only supports the structure of the frame 1 but also serves as a slide rail, allowing the sliding plate 24 to slide up and down along the vertical beam 11, ensuring the stability of the sliding plate 24's vertical movement.

[0032] Specifically, the sliding plate 24 and the vertical beam 11 form a sliding guide mechanism to ensure the stability of movement during the pressing process; the mounting plate 25 is detachably connected to the sliding plate 24 to achieve modular installation of the drive component 23; the jack 21 is mounted on the sliding plate 24, and its power output end is connected to the frame 1. This design demonstrates multiple advantages in practical applications: First, the cooperation between the sliding plate 24 and the vertical beam 11 provides stable guiding support for the movement of the jack 21, avoiding swaying and eccentricity during the pressing process, which is particularly important for the pressing of precision parts; second, the detachable design of the mounting plate 25 facilitates the installation and maintenance of the drive component 23. When it is necessary to repair or replace the drive component 23, only the mounting plate 25 needs to be removed, without touching the entire pressing mechanism 2; third, this modular design also facilitates the upgrading and modification of the equipment, allowing for the replacement of different specifications of the drive component 23 according to actual needs. Meanwhile, the connection method between the jack 21 and the frame 1 ensures the reliability of pressure transmission.

[0033] like Figure 2 and 5 As shown, in some embodiments, the transmission unit includes: a crank 232 connected to the power output end of the motor 231; and a connecting rod assembly 233, one end of which is rotatably connected to the crank 232 and the other end of which is rotatably connected to the rocker arm 22.

[0034] In this invention, the motor 231 drives the crank 232 to rotate, and the crank 232 drives the rocker arm 22 to oscillate back and forth through the connecting rod assembly 233. The connecting rod assembly 233 can be a single connecting rod, and the rotation of the crank 232 drives the bottom of the connecting rod to move, while the top of the connecting rod drives the rocker arm 22 to oscillate up and down.

[0035] Specifically, this embodiment describes the structural design of the transmission unit, employing a crank 232 connecting rod mechanism to achieve motion conversion. Its working principle is as follows: the motor 231 drives the crank 232 to rotate, and the crank 232 is connected to the rocker arm 22 via the connecting rod assembly 233, converting the rotational motion into the reciprocating oscillating motion of the rocker arm 22. In practical applications, this transmission method has significant advantages: First, the motion conversion process of the crank 232 connecting rod mechanism is smooth and reliable, producing ideal reciprocating motion characteristics, particularly suitable for the working requirements of presses; second, this mechanism can amplify torque, enabling the same power motor 231 to drive a larger tonnage jack 21; third, this mechanism has a compact structure, occupies little space, and is simple to maintain. Under different working conditions, such as bearing press-fitting and parts assembly, this transmission mechanism can maintain stable working performance.

[0036] like Figure 2As shown, the connecting rod assembly 233 further includes a linear bearing 2331, which is mounted on the mounting plate 25; a connecting rod 2332, one end of which is rotatably connected to the crank 232; and a drive shaft 2333, which is slidably engaged with the linear bearing 2331. One end of the drive shaft 2333 is rotatably connected to the rocker arm 22, and the other end is rotatably connected to the end of the connecting rod 2332 away from the crank 232.

[0037] This embodiment of the invention further optimizes the connecting rod assembly 233. Its working principle is as follows: the linear bearing 2331 is fixed on the mounting plate 25, and the driving shaft 2333 forms a sliding fit with the linear bearing 2331. The two ends of the driving shaft 2333 are respectively connected to the connecting rod 2332 and the rocker arm 22, thereby realizing motion transmission. This design exhibits significant technical effects in practical applications: First, the use of the linear bearing 2331 greatly reduces friction loss during transmission, improves transmission efficiency, and extends the service life of the equipment; second, the precise guiding effect provided by the linear bearing 2331 ensures the smoothness of the transmission process, reducing vibration and noise; third, this design simplifies the structure of the connecting rod assembly 233, facilitating maintenance and replacement. In applications requiring long-term continuous operation, the advantages of this design are particularly evident, maintaining stable transmission performance.

[0038] Specifically, the linear bearing 2331 is arranged vertically, and the drive shaft 2333 can also reciprocate vertically. During the rotation of the crank 232, the bottom of the connecting rod 2332 moves, and the top of the connecting rod 2332 drives the drive shaft 2333 to move up and down. Through this design, the drive shaft 2333 of the connecting rod assembly 233 only moves in the vertical direction, which not only improves the stability of the drive, but also reduces the space occupied by the drive shaft 2333 when it moves, avoiding any impact on the worker's work. Finally, the rotation area of ​​the crank 232 and the connecting rod 2332 can be moved down to the bottom area, further reducing the space occupied by the work area.

[0039] like Figure 3 As shown, in some embodiments, the drive shaft 2333 is provided with a slot 23331 and an opening 23332 communicating with the slot 23331 at one end near the crank 232; the rocker arm 22 is provided with a buckle 221, which can be inserted into the slot 23331 through the opening 23332. The buckle 221 includes a first state of being inserted into the slot 23331 and a second state of being disengaged from the slot 23331.

[0040] In this invention, a slot 23331 and an opening 23332 are provided on the drive shaft 2333. The buckle 221 on the crank 232 can enter the slot 23331 through the opening 23332 to form a reliable connection. The buckle 221 has two working states: engaged and disengaged. The slot 23331 extends along the length of the drive shaft 2333, and the opening 23332 communicates with the middle of the slot 23331. This design has multiple advantages in practical applications: First, the buckle 221 connection enables quick assembly and disassembly, allowing parts to be assembled and disassembled without special tools, greatly improving maintenance efficiency; second, the two working states ensure the reliability of the connection, preventing accidental detachment during operation.

[0041] In some embodiments, the slot 23331 extends along the length of the drive shaft 2333, and the opening 23332 communicates with the middle of the slot 23331.

[0042] In this invention, by positioning the opening 23332 in the middle of the slot 23331, the state of the latch 221 is easily observed and operated, improving operational convenience. To pull the latch 221 out of the slot 23331, simply align the latch 221 with the opening 23332 and then pull the rocker arm 22 axially to disengage the latch 221 through the opening 23332. Similarly, to insert the latch 221 into the slot 23331, align the latch 221 with the opening 23332 and then push the rocker arm 22 axially to insert the latch 221 into the slot 23331. The latch 221 moves up and down within the slot 23331, causing the rocker arm 22 to swing up and down, making it less likely to disengage from the opening 23332 in the middle.

[0043] In some embodiments, a handle 222 is provided at the end of the rocker arm 22 away from the jack 21.

[0044] In this invention, the jack 21 is driven by the rocker arm 22 using a lever, requiring only a small amount of power. Therefore, the motor 231 in this invention is a small motor that can power the jack 21. Furthermore, the small motor offers a certain level of safety; even in the event of misoperation, the motor 231 will stop when the jack 21 encounters resistance during extension, thus improving safety. Moreover, most of the extension of the jack 21 is driven by the motor 231. When resistance is encountered and the motor 231 cannot drive it, the buckle 221 can be separated from the slot 23331, and the rocker arm 22 can be manually operated via the handle 222, ensuring control over the applied pressure.

[0045] Specifically, a man-held handle 222 is provided at the end of the rocker arm 22. During normal operation, the handle 222 moves with the rocker arm 22, while the rocker arm 22 can be controlled manually when manual operation is required. This design demonstrates significant practical value in real-world applications: First, when the motor 231 or drive system malfunctions, the operator can directly control the rocker arm 22 via the handle 222, switching the press to manual mode and preventing complete work interruption due to equipment failure. Second, in certain special working conditions requiring precise pressure control, manual operation allows for finer pressure adjustment, which is particularly useful in precision parts assembly. Third, the handle 222 facilitates equipment debugging and maintenance; during maintenance, the working status of each mechanism can be verified manually. This dual-mode operation significantly improves the reliability and adaptability of the equipment.

[0046] In one specific embodiment, during bearing assembly, the bearing is positioned on the pressure-bearing mechanism 3, and then the motor 231 is started. The motor 231 drives the rocker arm 22 to swing rapidly through the transmission unit until the pressure rod abuts against the bearing. At this point, the motor 231 automatically shuts off due to obstruction, switching to manual mode. The worker can pull the clip 221 out of the slot 23331 and then manually operate the rocker arm 22 to complete the bearing assembly, avoiding damage to the motor 231 when manually operating the rocker arm 22. Afterwards, the clip 221 is re-engaged into the slot 23331 to continue processing the next bearing.

[0047] like Figure 1 As shown, in some embodiments, the power input end of the jack 21 is provided with a tube 211, and the rocker arm 22 is inserted into the tube 211.

[0048] In this invention, a plug tube 211 is provided at the power input end of the jack 21, and the rocker arm 22 is plugged into the plug tube 211. This connection design has significant advantages in practical applications: First, the plug-in connection structure is simple and reliable, requiring no complex tools during assembly, and is not easily loosened after connection, ensuring long-term reliability; second, when the jack 21 needs to be replaced or maintenance is required, the rocker arm 22 can be quickly disassembled and reinstalled, greatly improving maintenance efficiency; third, the plug-in connection has a certain degree of self-adaptability, adapting to slight coaxiality errors, reducing the requirements for assembly precision. This connection method is particularly suitable for industrial applications requiring frequent disassembly or maintenance, ensuring both connection reliability and improved maintenance convenience.

[0049] Furthermore, the insertion tube 211 is connected to the rocker arm 22 to ensure that the drive shaft 2333 can move back and forth in the vertical direction to drive the rocker arm 22 to swing up and down. The length of the insertion tube 211 inserted into the rocker arm 22 changes adaptively during the up and down swinging process.

[0050] In some embodiments, the pressure-applying mechanism further includes an elastic element 26, one end of which is connected to the frame 1 and the other end is connected to the sliding plate 24, for driving the jack 21 to reset after pressure relief.

[0051] In this invention, an elastic element 26 is provided between the frame 1 and the sliding plate 24. When the jack 21 is depressurized, the elastic force of the elastic element 26 drives the sliding plate 24 to move upward, thereby achieving automatic reset of the jack 21. This design plays an important role in practical applications: First, the automatic reset function eliminates the need for manual reset, significantly improving work efficiency, which is especially important in mass production. Second, the elastic reset ensures the smoothness of the reset process, avoiding the impact that may be caused by sudden rebound. Third, this design simplifies the operation process and reduces the labor intensity of operators. In continuous operation, the automatic reset function can significantly shorten the work cycle and improve production efficiency. At the same time, the elastic element 26 also acts as a buffer, extending the service life of the equipment.

[0052] In some embodiments, the vertical beam 11 is provided with a plurality of adjustment holes 12 along the extension direction, and a pin 13 is inserted into the adjustment hole 12. The pin 13 is used to support the pressure bearing mechanism 3.

[0053] In this invention, multiple sets of adjustment holes 12 are provided on the vertical beam 11 along its extension direction. The pressure-bearing mechanism 3 is supported by inserting pins 13 into the adjustment holes 12 at different heights, thereby achieving adjustment of the working height. This design has multiple advantages in practical applications: First, the multi-level adjustable design allows the press to adapt to workpieces of different heights, greatly expanding the applicability of the equipment; second, the pin 13 positioning method is simple and reliable, and the adjustment process requires no complex tools, making operation convenient; third, the multiple sets of adjustment holes 12 provide continuous height selection, which can accurately match the size requirements of different workpieces. In actual production, this flexible height adjustment function allows the same machine to adapt to the processing needs of various workpiece specifications, improving the utilization rate of the equipment. At the same time, the pin 13 positioning method also ensures the stability of the adjusted position, guaranteeing processing accuracy.

[0054] The electric press outputs power through the motor 231, which drives the rocker arm 22 to swing back and forth through the transmission unit. The rocker arm 22 acts on the power input end of the jack 21, thereby causing the jack 21 to extend and complete the processing of the workpiece. This effectively saves manpower and improves work efficiency.

[0055] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electric press machine characterized by comprising: The frame (1) and the pressure mechanism (2) and the pressure bearing mechanism (3) are arranged on the frame (1), the pressure bearing mechanism (3) is used for bearing the workpiece to be processed, the pressure mechanism (2) is arranged opposite to the pressure bearing mechanism (3) and can move towards the pressure bearing mechanism (3) to complete the processing of the workpiece to be processed on the pressure bearing mechanism (3); the pressure mechanism (2) comprises: The jack (21); The rocker (22) is connected with the power input end of the jack (21) and is used for controlling the elongation of the jack (21); The drive assembly (23) comprises a motor (231) and a transmission unit, one end of the transmission unit is connected with the power output end of the motor (231), and the other end is connected with the rocker (22), so that the motor (231) can drive the rocker (22) to reciprocate through the transmission unit.

2. The electric press machine according to claim 1, characterized in that, The frame (1) is provided with a vertical beam (11), and the pressure mechanism (2) further comprises: The sliding plate (24) is in sliding fit with the vertical beam (11); The mounting plate (25) is detachably connected with the sliding plate (24); The jack (21) is arranged on the sliding plate (24), the power output end of the jack (21) is connected with the frame (1), and the drive assembly (23) is arranged on the mounting plate (25).

3. The electric press machine according to claim 2, characterized in that, The transmission unit comprises: The crank (232) is connected with the power output end of the motor (231); The connecting rod assembly (233) is rotatably connected with the crank (232) at one end and rotatably connected with the rocker (22) at the other end.

4. The electric press machine according to claim 3, characterized in that The connecting rod assembly (233) comprises: The linear bearing (2331) is arranged on the mounting plate (25); The connecting rod (2332) is rotatably connected with the crank (232) at one end; The driving shaft (2333) is in sliding fit with the linear bearing (2331), one end of the driving shaft (2333) is rotatably connected with the rocker (22), and the other end is rotatably connected with the end of the connecting rod (2332) away from the crank (232).

5. The electric press machine according to claim 4, characterized in that One end of the driving shaft (2333) adjacent to the crank (232) is provided with a clamping groove (23331) and an opening (23332) in communication with the clamping groove (23331); The clasp (221) is arranged on the rocker (22), the clasp (221) can be clamped into the clamping groove (23331) through the opening (23332), and the clasp (221) comprises a first state of being clamped into the clamping groove (23331) and a second state of being separated from the clamping groove (23331).

6. The electric press machine according to claim 5, wherein The clamping groove (23331) extends along the length direction of the driving shaft (2333), and the opening (23332) is in communication with the middle part of the clamping groove (23331).

7. The electric press machine of claim 5, wherein, One end of the rocker (22) away from the jack (21) is provided with a handle (222).

8. The electric press machine according to any one of claims 1 to 7, characterized in that The power input end of the jack (21) is provided with a plug pipe (211), and the rocker (22) is plugged with the plug pipe (211).

9. The electric press machine according to any one of claims 2-7, characterized in that, The pressure applying mechanism (2) further comprises an elastic member (26), one end of the elastic member (26) is connected with the frame (1), and the other end is connected with the sliding plate (24), so as to drive the jack (21) to reset after pressure relief.

10. The electric press machine of claim 2, wherein, A plurality of groups of adjusting holes (12) are arranged on the vertical beam (11) along the extension direction, and a pin shaft (13) is inserted in the adjusting hole (12), and the pin shaft (13) is used for supporting the pressure bearing mechanism (3).

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