Electro-hydraulic servo numerical control bending machine self-lubricating sliding block guide plate
By using a PLC controller and an electric telescopic rod in conjunction with a grease pump, automatic lubrication of the slider guide device is achieved, solving the problem of time-consuming and labor-intensive lubrication and improving the efficiency of equipment use and processing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI MCKENNICK INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-19
AI Technical Summary
The existing electro-hydraulic servo CNC bending machine slide guide device lacks a clear trajectory during grease application and transmission, resulting in time-consuming and labor-intensive maintenance and lubrication, which affects the continuous utilization rate of the equipment and the processing accuracy.
A PLC controller is used to control the electric telescopic rod and the grease pump. A counter is used to deliver grease into the slider in a timed and quantitative manner, realizing automatic lubrication and reducing manual intervention.
This technology enables efficient automatic lubrication of the slider, improving the continuous utilization rate and machining accuracy of the equipment, and reducing manual maintenance time.
Smart Images

Figure CN224372595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slider guiding devices, specifically a self-lubricating slider guide plate for an electro-hydraulic servo CNC bending machine. Background Technology
[0002] The self-lubricating slide guide plate of the electro-hydraulic servo CNC bending machine is a key component of the bending machine. It is located between the slide and the machine bed and mainly plays the role of guiding and supporting the slide, ensuring that the slide can move smoothly and accurately during high-speed and high-precision bending, thus extending its service life. At the same time, it also improves the processing accuracy and stability of the bending machine and ensures the quality of the workpiece. It is an important component for improving the performance of the bending machine and the quality of the workpiece.
[0003] Chinese Patent No. CN216397757U discloses a slider guide device for a CNC bending machine, including a hydraulic cylinder. The hydraulic cylinder is mounted on top of a fixed plate by screw a. Positioning plates are mounted on the left and right sides below the fixed plate by screw b. There is a gap between the left and right positioning plates. The positioning plates have an inverted "L" shape structure. Slide rails are mounted on the front and back sides of the positioning plates by screw c. The structure in this application is neat and orderly, which facilitates the replacement of slide rails and sliders. The hydraulic cylinder has a large installation space, which facilitates the maintenance and heat dissipation of the hydraulic cylinder. Furthermore, the stabilizing strip reinforces the installation, making the movement of the slider more stable.
[0004] The slider guide device of the aforementioned patent requires the assistance of grease during use. However, the application and transfer of grease do not provide a clear trajectory, making maintenance and the application of lubricating materials time-consuming and labor-intensive, affecting the continuous utilization rate of the equipment and the bending processing of materials. Utility Model Content
[0005] The purpose of this invention is to provide a self-lubricating slider guide plate for an electro-hydraulic servo CNC bending machine. Through a PLC controller, after the slider moves longitudinally back and forth a certain number of times, the PLC controller can send an extension signal to the electric telescopic rod, ensuring a sealed connection between the injection port and the grease nipple. This assists the grease pump in delivering grease into the slider for lubrication. It allows for efficient and proactive lubrication at set times, eliminating the need for manual grease addition. The grease only needs to be delivered to the grease pump at set times, thus solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating slider guide plate for an electro-hydraulic servo CNC bending machine, comprising a guide rail, a slider slidably disposed on one side of the guide rail, an oil nozzle disposed at the upper end of the slider, an injection port sealed on one side of the oil nozzle, a grease pump sealed and connected to the upper end of the injection port via a pipe, an electric telescopic rod disposed obliquely on one side of the injection port, a PLC controller disposed on the other side of the guide rail, a buzzer disposed at the lower end of the PLC controller, a fixing block disposed on one side of the upper end of the slider, and a reserved oil nozzle facing the upper grease pump. After a set value is set in the longitudinal sliding direction, the PLC controller can deliver grease to the oil nozzle position, allowing the grease to be delivered into the slider for lubrication.
[0007] Preferably, a second bracket is provided between the lower end of the grease pump and the guide rail, and the second bracket is fixedly connected to the grease pump and the guide rail respectively by bolts. A first bracket is provided on the outside of the electric telescopic rod facing the second bracket, and the first bracket is fixedly connected to the electric telescopic rod and the second bracket respectively by bolts. The reserved first and second brackets can assist in the connection and connection of the grease pump and the electric telescopic rod, which facilitates the stable delivery of grease into the slider for lubrication at the grease nipple position.
[0008] Preferably, the fixed block and the slider are fixedly connected by bolts. A pressing counter is provided at the lower end of one side of the second bracket, and the pressing counter is fixedly connected to the second bracket by bolts. During the longitudinal reciprocating movement of the slider, the pressing counter will be squeezed to complete the counting. The slider can be lubricated at regular intervals according to the counting of the pressing counter.
[0009] Preferably, the PLC controller is electrically connected to the press counter, the buzzer, the grease pump, and the electric telescopic rod, respectively. The electrical connection facilitates the timely and quantitative delivery of grease.
[0010] Preferably, a cutting tool is provided between the two guide rails, a grinding mold is provided at the lower end of the cutting tool, and a bending machine housing is provided outside the grinding mold. Reserved openings are provided on both sides inside the bending machine housing, and the reserved openings are used for sound discharge.
[0011] Preferably, the reserved opening corresponds to the position of the buzzer, which facilitates efficient sound transmission.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] During the longitudinal reciprocating movement of the slider in this utility model, the slider can press a pressing counter via a fixed block. Based on the pressed value of the pressing counter, the grease pump can be started at regular intervals by a PLC controller. The injection port and grease nipple can also be connected at regular intervals, allowing the grease pump to deliver grease into the slider through the injection port and grease nipple. This allows for direct lubrication of the slider's interior. The timed activation of the electric telescopic rod can adjust the connection between the injection port and grease nipple, enabling the timely delivery of grease into the slider. Reserved grease can be stored in the grease pump beforehand, facilitating the timely and quantitative delivery of grease into the slider for efficient lubrication. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall external structure of this utility model;
[0015] Figure 2 This is a schematic diagram showing the positional relationship of the cutting tools in this utility model;
[0016] Figure 3 This is a schematic diagram of the transmission trajectory of the electric telescopic pole of this utility model;
[0017] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of region A in the middle;
[0018] Figure 5 This is a schematic diagram showing the positional relationship of the PLC controller of this utility model;
[0019] Figure 6 For the present utility model Figure 5 Enlarged view of a portion of region B in the middle.
[0020] In the diagram: 1. Bending machine housing; 2. Grinding mold; 3. Cutting tool; 4. Pre-reserved opening; 5. Guide rail; 6. Slider; 7. Grease pump; 8. First bracket; 9. Electric telescopic rod; 10. Press counter; 11. Fixing block; 12. Oil nozzle; 13. Injection port; 14. Pipeline; 15. Buzzer; 16. PLC controller; 17. Second bracket. Detailed Implementation
[0021] The present invention will be further described below with reference to specific embodiments.
[0022] like Figure 1 and Figure 2As shown, the self-lubricating slider guide plate of the electro-hydraulic servo CNC bending machine in this embodiment includes a guide rail 5, a cutter 3 is arranged between the two guide rails 5, and a slider 6 is arranged on one side of the outer side of the two guide rails 5. The inside of the slider 6 is slidably connected to the outside of the guide rail 5. When the cutter 3 moves longitudinally back and forth, the slider 6 slides outside the guide rail 5.
[0023] The upper end of the slider 6 is sealed with an oil nozzle 12. Referring to Chinese Patent No. CN218913473U, a rolling linear guide pair with an anti-deformation structure, the connection method of the slider 6, the internal structure of the slider 6, and the connection method between the oil nozzle 12 and the slider 6 are described in detail in that application. This application does not make any additional improvements to the internal structure of the slider 6 or the connection method of the oil nozzle 12. Therefore, the slider 6 and the oil nozzle 12 are not described in detail in this application.
[0024] Furthermore, in order to periodically lubricate the inside of slider 6, such as... Figure 3 and Figure 4 As shown, an injection port 13 is sealed on one side of the outside of the grease nipple 12, and the injection port 13 is sealed to the grease nipple 12. A grease pump 7 is provided at the upper end of the injection port 13, and the grease pump 7 is sealed to the injection port 13 through a pipe 14. When it is necessary to transfer grease to the slider 6, the grease pump 7 can actively transfer the grease through the pipe 14, and finally send the grease into the lubrication position inside the slider 6 through the connection between the injection port 13 and the grease nipple 12, so as to achieve timed lubrication.
[0025] In this embodiment, an electric telescopic rod 9 is inclinedly provided on one side of the outside of the injection port 13, and one end of the electric telescopic rod 9 is fixedly connected to the outer wall of the injection port 13 by bolts. The extension and retraction of the electric telescopic rod 9 can drive the injection port 13 to retract, and the connection state between the injection port 13 and the nozzle 12 can be adjusted.
[0026] It is worth mentioning that a second bracket 17 is provided between the lower end of the grease pump 7 and the guide rail 5, and the second bracket 17 is fixedly connected to the grease pump 7 and the guide rail 5 respectively by bolts. A first bracket 8 is provided on the outside of the electric telescopic rod 9 facing the second bracket 17, and the first bracket 8 is fixedly connected to the electric telescopic rod 9 and the second bracket 17 respectively by bolts. The connection between the first bracket 8 and the second bracket 17 facilitates the connection with the guide rail 5.
[0027] In order to actively lubricate the slider 6 after it moves back and forth at regular intervals, such as Figure 5 and Figure 6 As shown, a PLC controller 16 is installed on the other side of the guide rail 5. A buzzer 15 is installed at the lower end of the PLC controller 16. The buzzer 15 is activated during the process of lubricating grease being delivered to remind the user to pay attention.
[0028] It is worth mentioning that a fixing block 11 is provided on one side of the upper end of the slider 6, and the fixing block 11 is fixedly connected to the slider 6 by bolts. A pressing counter 10 is provided at the lower end of one side of the second bracket 17, and the pressing counter 10 is fixedly connected to the second bracket 17 by bolts. When the slider 6 slides back and forth along the guide rail 5 in the longitudinal direction, the slider 6 will drive the fixing block 11 to squeeze the pressing counter 10. Squeezing the pressing counter 10 can complete the counting. After counting, the grease can be delivered.
[0029] Furthermore, the PLC controller 16 is electrically connected to the press counter 10, the buzzer 15, the grease pump 7, and the electric telescopic rod 9. After the press counter 10 detects a certain number of presses, the PLC controller 16 can give the electric telescopic rod 9 a telescopic signal, and the PLC controller 16 can give the grease pump 7 and the buzzer 15 a start / stop signal, thus completing the delivery of grease.
[0030] To facilitate the sound output of the buzzer 15, a mold 2 is provided at the lower end of the cutter 3, and a bending machine housing 1 is provided on the outside of the mold 2. Reserved openings 4 are provided on both sides inside the bending machine housing 1, and the reserved openings 4 correspond to the positions of the buzzer 15. After the buzzer 15 emits a sound, the sound is emitted from the reserved openings 4.
[0031] Working principle: Using the auxiliary cutting tool 3, the material to be bent is placed on the upper end of the mold 2. The hydraulic structure at the upper end of the cutting tool 3 is activated, pressing the cutting tool 3. The two sides of the cutting tool 3 slide vertically outside the guide rail 5 via the sliders 6, causing the sliders 6 to slide back and forth longitudinally along the guide rail 5, thus bending the material. After a single back-and-forth movement of the slider 6, the slider 6 presses the pressing counter 10 through the fixed block 11. After the slider 6 has moved back and forth a corresponding number of times, the pressing counter 10 sends a start signal to the buzzer 15 through the PLC controller 16. At the same time, the PLC controller 16 sends an extension signal to the electric telescopic rod 9. The telescopic rod 9 pushes the injection port 13, causing the injection port 13 to be plugged outside the grease nipple 12. Finally, the PLC controller 16 gives the grease pump 7 a start signal. The grease pump 7 will transfer a certain amount of grease from the pipe 14 to the grease nipple 12 and finally deliver the grease into the lubrication position inside the slider 6. After the grease pump 7 delivers the grease, the electric telescopic rod 9 receives a retraction signal from the slider 6, realizing the separation of the injection port 13 and the grease nipple 12. The PLC controller 16 resets the count of the press counter 10 and re-performs the subsequent calculations. At the same time, the PLC controller 16 stops the sound emitted by the buzzer 15.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An electro-hydraulic servo numerical control bending machine self-lubricating sliding block guide plate, comprising a guide rail (5), a sliding block (6) is arranged on one side of the outer part of the guide rail (5), and an oil nozzle (12) is arranged at the upper end of the sliding block (6), characterized in that, An injection port (13) is sealed on one side of the outside of the grease nipple (12). A grease pump (7) is sealed and connected to the upper end of the injection port (13) through a pipe (14). An electric telescopic rod (9) is inclined on one side of the outside of the injection port (13). A PLC controller (16) is provided on the other side of the outside of the guide rail (5). A buzzer (15) is provided at the lower end of the PLC controller (16). A fixing block (11) is provided on one side of the upper end of the slider (6).
2. The electro-hydraulic servo numerical control bending machine self-lubricating sliding block guide plate according to claim 1, characterized in that: A second bracket (17) is provided between the lower end of the grease pump (7) and the guide rail (5), and the second bracket (17) is fixedly connected to the grease pump (7) and the guide rail (5) by bolts. A first bracket (8) is provided on the outside of the electric telescopic rod (9) facing the second bracket (17), and the first bracket (8) is fixedly connected to the electric telescopic rod (9) and the second bracket (17) by bolts.
3. The electro-hydraulic servo numerical control bending machine self-lubricating sliding block guide plate according to claim 2, characterized in that: The fixed block (11) and the slider (6) are fixedly connected by bolts. A press counter (10) is provided at the lower end of one side of the second bracket (17), and the press counter (10) and the second bracket (17) are fixedly connected by bolts.
4. The self-lubricating slider guide plate of the electro-hydraulic servo CNC bending machine according to claim 3, characterized in that: The PLC controller (16) is electrically connected to the press counter (10), the buzzer (15), the grease pump (7), and the electric telescopic rod (9), respectively.
5. The self-lubricating slider guide plate of the electro-hydraulic servo CNC bending machine according to claim 4, characterized in that: A cutting tool (3) is provided between the two guide rails (5). A grinding wheel (2) is provided at the lower end of the cutting tool (3). A bending machine housing (1) is provided outside the grinding wheel (2). Reserved openings (4) are provided on both sides inside the bending machine housing (1).
6. The self-lubricating slider guide plate of the electro-hydraulic servo CNC bending machine according to claim 5, characterized in that: The reserved opening (4) corresponds to the position of the buzzer (15).