Electric interlocking driving safety cock supporting mechanism of hydraulic machine

Abstract

The utility model belongs to the technical field of hydraulic machine equipment, and discloses a hydraulic machine electrical interlocking driving safety cock supporting mechanism which comprises a bottom plate seat (3), a supporting and fixing bottom plate (8) and a rack (11). The bottom plate seat (3) is arranged in the middle of the edge of the hydraulic machine base (1), two parallel linear guide rails (7) are arranged above the bottom plate seat (3), and the supporting and fixing bottom plate (8) is in sliding connection with the linear guide rails (7); the rack (11) and the linear guide rail (7) are arranged in parallel; a supporting sleeve seat (19) and an adjustable-speed motor (13) are arranged at the top of the supporting and fixing bottom plate (8), and an output shaft of the adjustable-speed motor (13) downwards penetrates through the supporting and fixing bottom plate (8) to be fixedly connected with a gear (9); and the safety supporting sleeve (18) is vertically inserted into the supporting sleeve seat (19). The safety plug mechanism is simple in structure and high in automation degree, the placing stability of the safety plug mechanism is improved, manual operation is completely replaced, and the intrinsic safety of equipment is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic press equipment, and particularly relates to an electrical interlock drive safety bolt support mechanism for a hydraulic press. Background Art

[0002] When replacing the mold of a current large 315T plastic product hydraulic press, generally, the slider is first raised to the upper limit position, and then the safety bolt support mechanism is manually turned to the support position. This operation method is too traditional and has a relatively high risk factor, with the possibility of misoperation. If the safety bolt is not turned to the support position, in case the slider slides down during the installation process, it is easy to cause accidents, not only easily damaging the equipment but also unable to ensure the safety of the operator. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is: the problem that the existing hydraulic press does not install a safety bolt device or configure a safety bolt support mechanism, and the traditional manual operation has a relatively high risk factor.

[0004] To solve the above technical problem, the specific technical solution of the utility model is as follows:

[0005] An electrical interlock drive safety bolt support mechanism for a hydraulic press includes a bottom plate seat 3, a support fixed bottom plate 8, and a rack 11; the bottom plate seat 3 is arranged in the middle of the edge of the hydraulic press base 1, two parallel linear guide rails 7 are arranged above the bottom plate seat 3, and the support fixed bottom plate 8 is slidably connected with the linear guide rails 7; the rack 11 is arranged parallel to the linear guide rails 7; a support sleeve seat 19 and a speed regulation motor 13 are arranged at the top of the support fixed bottom plate 8, the output shaft of the speed regulation motor 13 passes through the support fixed bottom plate 8 downward and is fixedly connected with a gear 9; the gear 9 meshes with the rack 11; a safety support sleeve 18 is vertically inserted into the support sleeve seat 19, and protection position limit switches 2 and retraction safety position limit switches 15 are respectively arranged at corresponding positions at both ends of the rack 11; the motor 13, the protection position limit switch 2, and the retraction safety position limit switch 15 are all connected to the PLC control system; when the support fixed bottom plate 8 moves forward to the protection position limit switch 2, the protection position limit switch 2 is turned on and the retraction safety position limit switch 15 is turned off. At this time, the PLC control system of the hydraulic press sends a stop signal to the motor 13, and the safety support sleeve 18 is in a protection state in the working area of the machine tool.

[0006] Among them, two groups of electrical interlock drive safety bolt support mechanisms are symmetrically arranged on both sides of the hydraulic press base.

[0007] Among them, the protection position limit switch 2 and the retraction safety position limit switch 15 are interlocked.

[0008] Among them, a buffer spring 12 is arranged on the safety support sleeve 18.

[0009] Among them, the rack 11 and two linear guide rails 7 are fixedly installed on the base plate 3 by fastening screws.

[0010] Among them, in the protected state, the safety support sleeve 18 is located between the slider 17 and the hydraulic press base 1.

[0011] Among them, the base plate 3 is installed on the hydraulic press base 1 by fastening screws 6.

[0012] Among them, a spring adjustment ring 16 is arranged at the end of the buffer spring 12.

[0013] Among them, the spring adjustment ring 16 is fixed on the safety support sleeve 18 by an adjustment screw 14.

[0014] Among them, the speed-regulating motor 13 is fixed on the support and fixing base plate 8 by screws.

[0015] The utility model has the following advantages:

[0016] 1. The speed-regulating motor is installed on the support and fixing base plate, and the linear motion of the gear and rack is realized by driving the motor; the support and fixing base plate is installed on two linear guide rails installed in parallel with the rack; the safety bolt support mechanism is driven to move forward and backward synchronously by the linear motion of the gear and rack. The speed of the forward and backward movement of the safety bolt support mechanism can be easily adjusted by the manual knob of the motor speed regulator.

[0017] 2. The electrical interlock drives the safety bolt support mechanism to operate stably and reliably, without manual pushing. The safety bolt support mechanism is driven to move forward and backward automatically by controlling the forward and reverse rotation of the motor. The structure is simple, the degree of automation is high, the stability of the placement of the safety bolt mechanism is improved, manual operation is completely replaced, and the intrinsic safety of the equipment is guaranteed. Brief Description of the Drawings

[0018] Figure 1 is the overall three-dimensional schematic diagram of the motor-driven safety bolt interlock support mechanism of the utility model;

[0019] Figure 2 is the three-dimensional exploded schematic diagram of the motor-driven safety bolt interlock support mechanism of the utility model;

[0020] Explanation of the marks in the figure: 1. Hydraulic press base; 2. Protection position detection and induction limit switch; 3. Base plate of the safety bolt support mechanism; 4. Linear rail mounting seat; 5. Linear rail fastening screw; 6. Base plate fastening screw; 7. Linear guide rail; 8. Support and fixing base plate; 9. Gear; 10. Rack fixing screw; 11. Rack; 12. Adjustment spring; 13. Speed-regulating motor; 14. Adjustment screw; 15. Retraction safety position detection and induction limit switch; 16. Spring adjustment ring; 17. Slider; 18. Support sleeve; 19. Support sleeve seat; 20. Fastening screw. Detailed implementation mode

[0021] In order to better understand the purpose, structure and function of the present utility model, the following will make a more detailed description of the present utility model in conjunction with the attached drawings.

[0022] As Figure 1 - Figure 2 shown, the electrical interlock drive safety bolt support mechanism of the present utility model is symmetrically installed at the left and right middle positions of the hydraulic press base 1 through the fastening screws 6 on the base plate seat 3. The speed regulating motor 13, the safety support sleeve 18, the support sleeve seat 19, and the buffer spring 12 and spring adjustment ring 16 installed on the support sleeve 18 are integrally installed on the support fixed base plate 8; the support fixed base plate 8 is installed on two linear guide rails 7 installed in parallel with the rack 11. The rack 11 and the two linear guide rails 7 are respectively fixedly installed on the safety bolt support mechanism base plate seat 3 through the fastening screws 10 and fastening screws 5.

[0023] The safety support sleeve 18 is inserted into the safety support sleeve seat 19, and the safety support sleeve seat 19 is fixedly welded to the support fixed base plate 8; the buffer spring 12 on the safety support sleeve 18 can buffer part of the impact force generated by the sudden sliding of the slider 17, and the compression displacement of the buffer spring 12 is adjusted by the adjustment screw 14 on the spring adjustment ring 16.

[0024] The action process and principle of the present utility model are as follows:

[0025] When the hydraulic press needs to perform operations such as die change, safety maintenance and mold repair, it is necessary to stop the slider 17 at the upper limit position, and the operator needs to enter between the slider 17 and the workbench 1. To ensure that the slider will not fall and cause a safety accident, after the hydraulic press slider 17 rises to the upper limit position, the machine tool control system issues a signal to drive the speed regulating motor 13, and the transmission movement is executed through the gear 9 and the rack 11 installed on the motor shaft of the speed regulating motor 13. The support fixed base plate 8 is integrally installed on two linear guide rails 7 installed in parallel with the rack 11, and the speed regulating motor 13 is fixed to the support fixed base plate 8 by the screw 20. Through the meshing transmission of the gear 9 installed on the speed regulating motor 13 and the rack 11, the rotational movement of the motor 13 is converted into a linear movement, and the support fixed base plate 8 installed on the linear guide rail 7 is synchronously driven, so as to automatically realize the forward and backward movement of the safety bolt support mechanism.

[0026] When the hydraulic press is in the normal working state, the support fixed base plate 8 is in the external safety area of the machine tool. At this time, the signal detection and induction limit switch 15 (retreat safety position) is in the on state, and the detection and induction limit switch 2 (protection position) is in the off state. The signal detection and induction limit switch 15 and the detection and induction limit switch 2 are a pair of limit interlock electrical signals, and only under the current signal state can the slider 17 be allowed to move downward for work;

[0027] When the hydraulic press needs to perform operations such as die change, safety maintenance, and die repair, first move the slider 17 upward to the upper limit position. After reaching the upper limit position, the machine tool PLC control system sends a forward rotation start control signal to the motor 13, synchronously driving the support fixed bottom plate 8 installed on the linear guide 7 to move. When the support fixed bottom plate 8 moves forward to the detection induction limit switch 2 (protection position), the induction limit switch 2 is turned on and the induction limit switch 15 is turned off. At this time, the hydraulic press PLC control system sends a stop signal to the motor 13, and the safety bolt support mechanism is in a protected state in the machine tool working area;

[0028] When operations such as die change, safety maintenance of the hydraulic press, and die repair are completed and the hydraulic press needs to run, in the manual working state, after pressing the safety bolt support mechanism withdrawal button on the control panel, the machine tool PLC control system sends a reverse rotation start control signal to the motor 13, synchronously driving the support fixed bottom plate 8 installed on the linear guide 7 to move. When the support fixed bottom plate 8 moves backward to the detection induction limit switch 15 position, the induction limit switch 15 is turned on and the induction limit switch 2 is turned off. At this time, the hydraulic press PLC control system sends a stop signal to the motor 13 to ensure that the safety support mechanism withdraws from the machine tool working area to the outside of the machine tool. At this time, the hydraulic press is allowed to run and the slider can move downward.

[0029] In this embodiment, an electrically driven safety support device is installed between the slider and the base. When the equipment slider has abnormal pressure relief, the support rods on both sides can support the slider to achieve the safety protection function. The support mechanism is symmetrically placed on the left and right sides of the hydraulic press base and consists of a speed control motor, a gear rack, a bottom plate, a linear guide, a moving fixed bottom plate, a support fixed bottom plate, a spring, a support sleeve, a support sleeve seat, etc. By upgrading and transforming the original electrical control signal, it is ensured that the support mechanism is interlocked with the electrical system of the equipment. When the large hydraulic press performs die change operation, the hydraulic press PLC control system sends a drive command, and the safety bolt support mechanisms symmetrically installed on both sides automatically enter the hydraulic press working area at the same time without manual intervention.

[0030] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, for those skilled in the art, without departing from the principle of the present invention, several deformations and improvements can still be made, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. An electrical interlock drive safety bolt support mechanism for a hydraulic press, characterized in that, It includes a base plate seat (3), a support and fixing base plate (8), and a rack (11); The base plate seat (3) is arranged in the middle of the edge of the hydraulic press base (1). Above the base plate seat (3), there are two parallel linear guide rails (7). The support and fixing base plate (8) is slidably connected to the linear guide rails (7); the rack (11) is arranged parallel to the linear guide rails (7); On the top of the support and fixing base plate (8), there are a support sleeve seat (19) and a speed regulating motor (13). The output shaft of the speed regulating motor (13) passes downward through the support and fixing base plate (8) and is fixedly connected to a gear (9); the gear (9) meshes with the rack (11); a safety support sleeve (18) is vertically inserted into the support sleeve seat (19); At corresponding positions at both ends of the rack (11), there are respectively a protection position limit switch (2) and a retraction safety position limit switch (15); The motor (13), the protection position limit switch (2), and the retraction safety position limit switch (15) are all connected to the PLC control system; When the support and fixing base plate (8) moves forward to the protection position limit switch (2), the protection position limit switch (2) is turned on and the retraction safety position limit switch (15) is turned off. At this time, the PLC control system of the hydraulic press issues a stop signal for the motor (13), and the safety support sleeve (18) is in a protection state in the working area of the machine tool.

2. The hydraulic press electrical interlock drive safety bolt support mechanism according to claim 1, characterized in that, Two groups of electrically interlocked drive safety bolt support mechanisms are symmetrically arranged on both sides of the hydraulic press base.

3. The hydraulic press electrical interlock drive safety bolt support mechanism according to claim 1, characterized in that, The protection position limit switch (2) and the retraction safety position limit switch (15) are interlocked.

4. The hydraulic press electrical interlock drive safety bolt support mechanism according to claim 1, characterized in that, A buffer spring (12) is arranged on the safety support sleeve (18).

5. The hydraulic press electrical interlock drive safety bolt support mechanism according to claim 1, characterized in that, The rack (11) and the two linear guide rails (7) are fixedly installed on the base plate seat (3) through fastening screws.

6. The hydraulic press electric interlock drive safety bolt support mechanism according to claim 1, characterized in that, In the protection state, the safety support sleeve (18) is located between the slider (17) and the hydraulic press base (1).

7. The hydraulic press electric interlock drive safety bolt support mechanism according to claim 1, characterized in that, The base plate seat (3) is installed on the hydraulic press base (1) through fastening screws (6).

8. The hydraulic press electrical interlock drive safety bolt support mechanism according to claim 1, characterized in that, The end of the buffer spring (12) is provided with a spring adjustment ring (16).

9. The hydraulic press electrical interlock drive safety bolt support mechanism according to claim 8, characterized in that, The spring adjustment ring (16) is fixed on the safety support sleeve (18) through an adjustment screw.

10. The hydraulic press electrical interlock drive safety bolt support mechanism according to claim 1, characterized in that, The speed regulating motor (13) is fixed on the support and fixing base plate (8) by screws.

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