Screw feeding device of oil pressure hot press

Abstract

The utility model belongs to oil pressure hot press auxiliary equipment technical field especially relates to a screw feeding device of oil pressure hot press, including screw feed assembly, linear drive mechanism and cantilevered screw machine. Linear drive mechanism includes linear drive frame, linear drive assembly and linear movement subassembly. Linear drive assembly includes linear drive motor, linear drive driving wheel, linear drive driven wheel, linear drive belt, linear drive clamping block. Linear movement subassembly includes linear movement slider, linear movement slide rail. Cantilevered screw machine includes machine base, electric screwdriver machine. The screw feeding device of oil pressure hot press provided in the application adopts double feed parallel design, improves the feeding efficiency, the utility model sets up two parallel interval screw feed assemblies, drives cantilevered screw machine alternately to take material through linear drive mechanism, realizes " taking material - replenishing " synchronous operation, and single feeding interval shortens, and the feeding efficiency improves.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for hydraulic hot presses, and particularly relates to a screw feeding device for hydraulic hot presses. Background Technology

[0002] As a core processing equipment in industrial scenarios such as sheet metal bonding and parts pressing, the efficiency and automation level of hydraulic hot presses directly affect the capacity of the entire production line. During the assembly and workpiece processing of hydraulic hot presses, screw tightening is one of the key processes. A feeding device must precisely deliver the screws to the designated workstation, where they are then secured using the hydraulic hot pressing action.

[0003] The screw feeding structure of existing hydraulic hot presses generally adopts a single-sided feeding design, that is, only a single screw feeding component is set up. This structure has the following shortcomings: Limited feeding efficiency: When a single feeding component runs out of screws, the machine needs to be stopped for replenishment, or the entire production line will be interrupted when the feeding machine fails. The average feeding time per cycle is longer, which cannot match the continuous processing rhythm of the hydraulic hot press, resulting in low processing efficiency of the hydraulic hot press. Utility Model Content

[0004] The purpose of this utility model is to provide a screw feeding device for a hydraulic hot press, which aims to solve the technical problem that the average single feeding time of the existing screw feeding structure of the hydraulic hot press is longer, which cannot match the continuous processing rhythm of the hydraulic hot press, resulting in low processing efficiency of the hydraulic hot press.

[0005] To achieve the above objectives, the screw feeding device for the hydraulic hot press provided in this utility model embodiment includes a screw feeding assembly, a linear drive mechanism, and a cantilever screw machine. The screw feeding assembly is disposed on one side of the linear drive mechanism and below the cantilever screw machine; the cantilever screw machine is disposed on the linear drive mechanism and above the screw feeding assembly. Two screw feeding assemblies are provided and arranged in parallel and at intervals; each screw feeding assembly includes a feeding bracket and a screw feeder. The feeding bracket is located on one side of the linear drive mechanism, and the screw feeder is fixed to the feeding bracket and located below the cantilever screw feeder. The linear drive mechanism includes a linear drive frame, a linear drive assembly, and a linear movement assembly. The linear drive frame is disposed on one side of the feeding bracket. The linear drive assembly is fixed to the linear drive frame and connected to the cantilever screw machine. The linear movement assembly is fixed to the linear drive frame and fixedly connected to the cantilever screw machine. The cantilever screw feeder includes a base and an electric screwdriver. The base is fixed to the linear drive assembly and the linear movement assembly, respectively. The electric screwdriver is fixed to the base and positioned above the screw feeder.

[0006] As an optional embodiment of this utility model, the linear drive assembly includes a linear drive motor, a linear drive drive wheel, a linear drive driven wheel, a linear drive belt, and a linear drive clamping block. The linear drive motor is fixed to the linear drive frame and is fixedly connected to the linear drive drive wheel. The linear drive driven wheel is fixed to the linear drive frame. The linear drive belt is fixedly wound around the linear drive drive wheel and the linear drive driven wheel, respectively. The linear drive clamping block is fixed to the linear drive belt and is fixedly connected to the base.

[0007] As an optional solution of this utility model, the linear motion component includes a linear motion slider and a linear motion slide rail. The linear motion slider is fixedly connected to the base and slidably connected to the linear motion slide rail. The linear motion slide rail is fixedly connected to the linear drive frame. Two linear motion components are provided, and both are fixedly connected to the linear drive frame.

[0008] As an optional embodiment of this utility model, the linear drive mechanism further includes a linear drive housing, which is fixedly connected to the linear drive frame; both the linear drive assembly and the linear movement assembly are disposed inside the linear drive housing.

[0009] As an optional embodiment of this utility model, the electric screwdriver includes an electric screwdriver drive assembly, an electric screwdriver lifting assembly, and an electric screwdriver material handling assembly. The electric screwdriver drive assembly is fixed to the machine base, the electric screwdriver lifting assembly is fixed to both the machine base and the electric screwdriver drive assembly, and the electric screwdriver material handling assembly is fixed to the electric screwdriver lifting assembly. The electric screwdriver drive assembly includes an electric screwdriver drive motor, an electric screwdriver drive drive wheel, an electric screwdriver drive driven wheel, an electric screwdriver drive belt, and an electric screwdriver drive clamping block. The electric screwdriver drive motor is fixed to the machine base and connected to the electric screwdriver drive drive wheel. The electric screwdriver drive driven wheel is fixed to the machine base, and the electric screwdriver drive belt is fixedly wound around both the electric screwdriver drive drive wheel and the electric screwdriver drive driven wheel. The electric screwdriver drive clamping block is fixedly connected to the electric screwdriver drive belt and connected to the electric screwdriver lifting assembly.

[0010] As an optional embodiment of this utility model, the electric screwdriver lifting assembly includes a lifting slider, a lifting slide rail, a buffer guide post, a buffer spring, and a lifting seat. Three lifting sliders are provided, one of which is fixedly connected to the electric screwdriver drive clamp, and the remaining two are fixedly connected to the lifting seat. All three lifting sliders are slidably connected to the lifting slide rail, which is fixedly connected to the machine base. The buffer guide post is fixedly connected to both the lifting slider and the lifting seat, and the buffer spring is movably inserted through the buffer guide post and fixedly connected to both the lifting slider and the lifting seat.

[0011] As an optional solution of this utility model, the electric screwdriver feeding assembly includes an electric screwdriver feeding base, an electric screwdriver feeding block, and an electric screwdriver feeding head. The electric screwdriver feeding base is fixed to the lifting base. The electric screwdriver feeding base, the electric screwdriver feeding block, and the electric screwdriver feeding head are fixedly connected in sequence from top to bottom, and the electric screwdriver feeding head is disposed above the screw feeder.

[0012] As an optional solution of this utility model, the cantilever screwdriver further includes an electric screwdriver cover, which is fixed to the machine base, and the electric screwdriver is disposed inside the electric screwdriver cover.

[0013] The screw feeding device of the hydraulic hot press provided in this embodiment of the utility model has at least one of the following technical effects: The screw feeding device of the hydraulic hot press provided in this application adopts a dual-feed parallel design to improve feeding efficiency. This utility model sets two parallel and spaced screw feeding components, which drive the cantilever screw machine to pick up materials alternately through a linear drive mechanism, so as to realize the synchronous "picking up and replenishing" and shorten the single feeding interval, thereby improving the feeding efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A perspective view of the screw feeding device of the hydraulic hot press provided in the embodiment of this utility model.

[0016] Figure 2 The screw feeding device of the hydraulic hot press provided in this embodiment of the utility model is shown in a perspective view after omitting the linear drive cover and the electric screwdriver cover.

[0017] Figure 3The linear drive mechanism of the screw feeding device of the hydraulic hot press provided in the embodiment of this utility model is shown in a perspective view after omitting the linear drive frame and linear drive cover.

[0018] Figure 4 A perspective view of the cantilever screw feeder of the hydraulic hot press provided in this embodiment of the present utility model, omitting the electric screwdriver cover.

[0019] The following are the labeling elements in the figure: 1. Screw feeding assembly; 2. Linear drive mechanism; 3. Cantilever screw machine; 11. Feeding bracket; 12. Screw feeder; 21. Linear drive frame; 22. Linear drive assembly; 23. Linear motion assembly; 24. Linear drive housing; 30. Base; 31. Electric screwdriver drive assembly; 32. Electric screwdriver lifting assembly; 33. Electric screwdriver material handling assembly; 34. Electric screwdriver cover; 221. Linear drive motor; 222. Linear drive drive pulley; 223. Linear drive driven pulley; 224. Linear drive belt; 225. Linear drive clamp; 231. Linear movement slider; 232. Linear movement guide rail; 311. Electric screwdriver drive motor; 312. Electric screwdriver drive drive pulley; 313. Electric screwdriver drive driven pulley; 314. Electric screwdriver drive belt; 315. Electric screwdriver drive clamp; 321. Lifting slider; 322. Lifting slide rail; 323. Buffer guide post; 324. Buffer spring; 325. Lifting seat; 331. Electric screwdriver feeder; 332. Electric screwdriver feeder block; 333. Electric screwdriver feeder head. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0024] In one embodiment of this utility model, such as Figures 1-4 As shown, a screw feeding device for a hydraulic hot press is provided, including a screw feeding assembly 1, a linear drive mechanism 2, and a cantilever screw machine 3. The screw feeding assembly 1 is located on one side of the linear drive mechanism 2 and below the cantilever screw machine 3; the cantilever screw machine 3 is located on the linear drive mechanism 2 and above the screw feeding assembly 1.

[0025] There are two screw feeding assemblies 1, which are arranged in parallel and spaced apart. The screw feeding assembly 1 includes a feeding bracket 11 and a screw feeder 12. The feeding bracket 11 is located on one side of the linear drive mechanism 2, and the screw feeder 12 is fixed to the feeding bracket 11 and located below the cantilever screw feeder 3.

[0026] The linear drive mechanism 2 includes a linear drive frame 21, a linear drive assembly 22, and a linear movement assembly 23. The linear drive frame 21 is disposed on one side of the feeding bracket 11. The linear drive assembly 22 is fixed to the linear drive frame 21 and connected to the cantilever screw machine 3. The linear movement assembly 23 is fixed to the linear drive frame 21 and is fixedly connected to the cantilever screw machine 3. The cantilever screw feeder 3 includes a base 30 and an electric screwdriver. The base 30 is fixed to the linear drive assembly 22 and the linear movement assembly 23, respectively. The electric screwdriver is fixed to the base 30 and is positioned above the screw feeder 12.

[0027] In another embodiment of this utility model, the linear drive assembly 22 includes a linear drive motor 221, a linear drive drive wheel 222, a linear drive driven wheel 223, a linear drive belt 224, and a linear drive clamping block 225. The linear drive motor 221 is fixed to the linear drive frame 21 and is fixedly connected to the linear drive drive wheel 222; the linear drive driven wheel 223 is fixed to the linear drive frame 21; the linear drive belt 224 is fixedly wound around the linear drive drive wheel 222 and the linear drive driven wheel 223 respectively; the linear drive clamping block 225 is fixed to the linear drive belt 224 and is fixedly connected to the base 30. The linear movement assembly 23 includes a linear movement slider 231 and a linear movement slide rail 232. The linear movement slider 231 is fixedly connected to the base 30 and slidably connected to the linear movement slide rail 232, which is fixedly connected to the linear drive frame 21. Two linear movement assemblies 23 are provided, both of which are fixedly connected to the linear drive frame 21.

[0028] The linear drive assembly 22 operates as follows: The linear drive motor 221 starts, driving the linear drive drive wheel 222 fixed to it to rotate; the linear drive belt 224 is wound around the drive wheel and the linear drive driven wheel 223 fixed on the linear drive frame 21, respectively. The drive wheel drives the driven wheel to rotate synchronously through belt transmission, causing the linear drive belt 224 to circulate along the trajectory formed by the drive wheel and the driven wheel. The linear drive clamp 225 fixed to the linear drive belt 224 moves synchronously with the belt, thereby causing the machine base 30 (connected to the cantilever screw machine 3) fixed to it to move. The linear movement slider 231 fixed on the machine base 30 then converts the movement of the machine base 30 into sliding along the linear movement slide rail 232 (the linear movement slide rail 232 is fixed to the linear drive frame 21); and the two parallel linear movement assemblies 23 together limit the offset of the machine base 30, ensuring that the machine base 30 moves smoothly in a preset direction, ultimately realizing the position switching of the cantilever screw machine 3 between the screw feeding assembly 1 and the pressing station.

[0029] In another embodiment of the present invention, the linear drive mechanism 2 further includes a linear drive housing 24, which is fixedly connected to the linear drive frame 21; the linear drive assembly 22 and the linear movement assembly 23 are both disposed inside the linear drive housing 24.

[0030] In another embodiment of this utility model, the electric screwdriver includes an electric screwdriver drive assembly 31, an electric screwdriver lifting assembly 32, and an electric screwdriver material picking assembly 33. The electric screwdriver drive assembly 31 is fixed to the base 30, the electric screwdriver lifting assembly 32 is fixed to both the base 30 and the electric screwdriver drive assembly 31, and the electric screwdriver material picking assembly 33 is fixed to the electric screwdriver lifting assembly 32. The electric screwdriver drive assembly 31 includes an electric screwdriver drive motor 311, an electric screwdriver drive drive wheel 312, an electric screwdriver drive driven wheel 313, an electric screwdriver drive belt 314, and an electric screwdriver drive clamping block 315. The electric screwdriver drive motor 311 is fixed to the base 30 and connected to the electric screwdriver drive drive wheel 312. The electric screwdriver drive driven wheel 313 is fixed to the base 30, and the electric screwdriver drive belt 314 is fixedly wound around the electric screwdriver drive drive wheel 312 and the electric screwdriver drive driven wheel 313. The electric screwdriver drive clamping block 315 is fixedly connected to the electric screwdriver drive belt 314 and connected to the electric screwdriver lifting assembly 32. The electric screwdriver lifting assembly 32 includes a lifting slider 321, a lifting slide rail 322, a buffer guide post 323, a buffer spring 324, and a lifting base 325. There are three lifting sliders 321, one of which is fixedly connected to the electric screwdriver drive clamp 315, and the remaining two lifting sliders 321 are fixedly connected to the lifting base 325. All three lifting sliders 321 are slidably connected to the lifting slide rail 322, which is fixedly connected to the machine base 30. The buffer guide post 323 is fixedly connected to the lifting slider 321 and the lifting base 325 respectively. The buffer spring 324 is movably inserted through the buffer guide post 323 and is fixedly connected to the lifting slider 321 and the lifting base 325 respectively. The electric screwdriver feeding assembly 33 includes an electric screwdriver feeding base 331, an electric screwdriver feeding block 332, and an electric screwdriver feeding head 333. The electric screwdriver feeding base 331 is fixed to the lifting base 325. The electric screwdriver feeding base 331, the electric screwdriver feeding block 332, and the electric screwdriver feeding head 333 are fixedly connected from top to bottom, and the electric screwdriver feeding head 333 is located above the screw feeder 12. The cantilever screw machine 3 also includes an electric screwdriver cover 34, which is fixed to the machine base 30, and the electric screwdriver is located inside the electric screwdriver cover 34.

[0031] The electric screwdriver operates as follows: After the electric screwdriver drive motor 311 starts, it drives the electric screwdriver drive drive wheel 312 connected to it to rotate. Since the electric screwdriver drive belt 314 is wound around the drive wheel and the electric screwdriver drive driven wheel 313 fixed on the machine base 30, the drive wheel drives the driven wheel to rotate synchronously through belt transmission, so that the belt moves cyclically along the track formed by the two wheels. The electric screwdriver drive clamp 315, which is fixed to the belt, moves synchronously with the belt, transmitting power to the electric screwdriver lifting assembly 32. The electric screwdriver drive clamp 315 is fixed to one of the lifting sliders 321 in the electric screwdriver lifting assembly 32. When the clamp moves, it drives the slider to slide along the lifting slide rail 322 fixed on the machine base 30. The remaining two lifting sliders 321 are fixed to the lifting seat 325 and are connected to the aforementioned sliders through the buffer guide post 323 and the buffer spring 324. During the sliding process, the buffer spring 324 can buffer the lifting impact force, ensuring that the lifting seat 325 smoothly follows the slider to rise and fall along the slide rail, realizing the height adjustment of the electric screwdriver picking assembly 33. The feeding seat of the electric screwdriver feeding assembly 33 is fixed to the lifting seat 325 and rises and falls synchronously with the lifting seat 325. The feeding seat, feeding block, and feeding head are fixed in sequence from top to bottom. When the lifting seat 325 drives the feeding head down to above the screw feeder 12 and contacts the screw, the feeding is completed. After feeding, the lifting seat 325 rises and drives the feeding assembly away from the feeder to prepare for subsequent screw installation.

[0032] The screw feeding device for the hydraulic hot press provided in this application operates as follows: (1) Initialization: After the equipment is started, the linear drive motor 221 drives the linear drive belt 224 to move, so that the machine base 30 moves along the linear moving slide rail 232 to the initial position (directly above the first screw feeder 12), the electric screwdriver drive motor 311 drives the electric screwdriver lifting assembly 32 to rise to the highest position, the electric screwdriver picking head 333 is de-energized and the negative pressure device is closed. (2) First feeding and picking: The control system issues a picking command, the electric screwdriver drive motor 311 rotates forward, driving the electric screwdriver drive belt 314 to move down, which in turn drives the lifting slider 321 to slide down along the lifting slide rail 322, and the electric screwdriver picking head 333 approaches the outlet of the first screw feeder 12; when the picking head contacts the screw, the electromagnet is energized and the negative pressure device is activated to attract the screw; then the electric screwdriver drive motor 311 reverses, driving the electric screwdriver lifting assembly 32 to rise to the initial height; (3) Move to the pressing station: The linear drive motor 221 starts and drives the machine base 30 to move along the linear sliding rail 232 to the pressing station of the hydraulic hot press. The moving speed is 500mm / s, and it stops after it reaches the position. (4) Screw installation: After the pressing mechanism of the hydraulic hot press is in place, the electric screwdriver take-up head 333 moves down to install the screw into the preset position of the workpiece. Then the electromagnet is de-energized and the negative pressure device is turned off to complete the installation. (5) Second feeding and picking: After installation, the linear drive motor 221 drives the base 30 to move directly above the second screw feeder 12 and repeats the picking action of step (2); at the same time, the first screw feeder 12 automatically replenishes screws to prepare for the next picking. (6) Cyclic operation: The reciprocating movement of the linear drive mechanism 2 enables the alternating feeding and installation of the two screw feeding components 1, which, in conjunction with the pressing rhythm of the hydraulic hot press, forms a continuous automated production. (7) Fault switching: If one of the screw feeders 12 malfunctions (such as screws running out or jamming), its built-in sensor sends a signal, and the control system automatically switches to a single feeding mode, using only the other screw feeder 12 to pick up the material. At the same time, an alarm signal is issued to remind the staff to inspect and repair the machine, thus avoiding production line shutdown.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screw feeding device for a hydraulic hot press, characterized in that, The device includes a screw feeding assembly, a linear drive mechanism, and a cantilever screw machine. The screw feeding assembly is located on one side of the linear drive mechanism and below the cantilever screw machine. The cantilever screw machine is located on the linear drive mechanism and above the screw feeding assembly. Two screw feeding assemblies are provided and arranged in parallel and at intervals; each screw feeding assembly includes a feeding bracket and a screw feeder. The feeding bracket is located on one side of the linear drive mechanism, and the screw feeder is fixed to the feeding bracket and located below the cantilever screw feeder. The linear drive mechanism includes a linear drive frame, a linear drive assembly, and a linear movement assembly. The linear drive frame is disposed on one side of the feeding bracket. The linear drive assembly is fixed to the linear drive frame and connected to the cantilever screw machine. The linear movement assembly is fixed to the linear drive frame and fixedly connected to the cantilever screw machine. The cantilever screw feeder includes a base and an electric screwdriver. The base is fixed to the linear drive assembly and the linear movement assembly, respectively. The electric screwdriver is fixed to the base and positioned above the screw feeder.

2. The screw feeding device for a hydraulic hot press according to claim 1, characterized in that, The linear drive assembly includes a linear drive motor, a linear drive drive pulley, a linear drive driven pulley, a linear drive belt, and a linear drive clamp. The linear drive motor is fixed to the linear drive frame and is fixedly connected to the linear drive drive pulley. The linear drive driven pulley is fixed to the linear drive frame. The linear drive belt is fixedly wound around the linear drive drive pulley and the linear drive driven pulley, respectively. The linear drive clamp is fixed to the linear drive belt and is fixedly connected to the base.

3. The screw feeding device for a hydraulic hot press according to claim 2, characterized in that, The linear motion assembly includes a linear motion slider and a linear motion slide rail. The linear motion slider is fixedly connected to the base and slidably connected to the linear motion slide rail. The linear motion slide rail is fixedly connected to the linear drive frame. There are two linear motion assemblies, both of which are fixedly connected to the linear drive frame.

4. The screw feeding device for a hydraulic hot press according to claim 1, characterized in that, The linear drive mechanism further includes a linear drive housing, which is fixedly connected to the linear drive frame; both the linear drive assembly and the linear movement assembly are disposed inside the linear drive housing.

5. The screw feeding device for a hydraulic hot press according to claim 1, characterized in that, The electric screwdriver includes an electric screwdriver drive assembly, an electric screwdriver lifting assembly, and an electric screwdriver material handling assembly. The electric screwdriver drive assembly is fixed to the machine base. The electric screwdriver lifting assembly is fixed to both the machine base and the electric screwdriver drive assembly. The electric screwdriver material handling assembly is fixed to the electric screwdriver lifting assembly. The electric screwdriver drive assembly includes an electric screwdriver drive motor, an electric screwdriver drive drive wheel, an electric screwdriver drive driven wheel, an electric screwdriver drive belt, and an electric screwdriver drive clamp. The electric screwdriver drive motor is fixed to the machine base and connected to the electric screwdriver drive drive wheel. The electric screwdriver drive driven wheel is fixed to the machine base. The electric screwdriver drive belt is fixedly wound around the electric screwdriver drive drive wheel and the electric screwdriver drive driven wheel. The electric screwdriver drive clamp is fixedly connected to the electric screwdriver drive belt and connected to the electric screwdriver lifting assembly.

6. The screw feeding device for a hydraulic hot press according to claim 5, characterized in that, The electric screwdriver lifting assembly includes a lifting slider, a lifting slide rail, a buffer guide post, a buffer spring, and a lifting base. Three lifting sliders are provided, one of which is fixedly connected to the electric screwdriver drive clamp, and the remaining two are fixedly connected to the lifting base. All three lifting sliders are slidably connected to the lifting slide rail, which is fixedly connected to the machine base. The buffer guide post is fixedly connected to both the lifting slider and the lifting base. The buffer spring is movably inserted through the buffer guide post and fixedly connected to both the lifting slider and the lifting base.

7. The screw feeding device for a hydraulic hot press according to claim 6, characterized in that, The electric screwdriver feeding assembly includes an electric screwdriver feeding base, an electric screwdriver feeding block, and an electric screwdriver feeding head. The electric screwdriver feeding base is fixed to the lifting base. The electric screwdriver feeding base, the electric screwdriver feeding block, and the electric screwdriver feeding head are fixedly connected from top to bottom, and the electric screwdriver feeding head is located above the screw feeder.

8. The screw feeding device for a hydraulic hot press according to claim 5, characterized in that, The cantilever screwdriver also includes an electric screwdriver cover, which is fixed to the machine base, and the electric screwdriver is disposed inside the electric screwdriver cover.

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