Automatic disengagement type driving mechanism

Abstract

The utility model relates to the technical field of driving mechanisms, and discloses an automatic disengagement type driving mechanism which is characterized in that four connecting seats are respectively mounted on one sides of two sliding seats, a workbench is mounted at the tops of the two connecting seats on one side, and the tops of the two connecting seats on the other side abut against the bottom of the workbench; an alarm assembly is arranged on one side of the two connecting bases on the other side, and a disengaging assembly is arranged on the top of the connecting base on the other side. When the workbench collides, the workbench drives the sliding plate to move in the sliding groove, at the moment, the sliding plate moves on the top of the positioning elastic piece, the limiting protrusion is made to break away from the interior of the positioning hole, then the positioning elastic piece is extruded, at the moment, one end of the positioning elastic piece moves in the groove, and the limiting protrusion is located in the groove. And the bottom of the workbench is separated from the fixing plate and one connecting seat, so that the workbench is prevented from continuing to move after being collided, and further damage caused by collision is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to drive mechanism technical field, concretely is a kind of automatic uncoupling type drive mechanism. BACKGROUND

[0002] Drive structure and execution structure are two important concepts in the field of mechanical engineering and automation, they bear different functions respectively, and cooperate to realize the normal operation of mechanical equipment. Drive structure and execution structure are usually fixedly installed, when execution structure collides, it is easy to cause equipment damage under the driving of drive structure, for example Figure 6 As shown in the figure, when drive structure and execution structure are through general force limiting structure, spring ball and platform are directly pressed together, since there is gap between spring ball and shell, after spring ball is pressed down, platform can move uncontrollably in the gap, so as to reduce the precision of platform movement, therefore, an automatic uncoupling type drive mechanism is proposed. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing an automatic uncoupling type drive mechanism to solve the problems proposed in the above background technology.

[0004] To realize the above-mentioned purpose, the utility model provides the following technical scheme: an automatic uncoupling type drive mechanism, including base,

[0005] Connecting assembly, the connecting assembly is arranged in the inner side of base, and the inner side bottom of base is provided with drive assembly;

[0006] The connecting assembly includes two sliding rails, two sliding seats and four connecting seats, two sliding rails are respectively installed on the inner sides of base, two sliding seats are slidingly connected to the outer sides of sliding rails, four connecting seats are respectively installed on one side of two sliding seats, the top of two connecting seats on one side is provided with workbench, the top of two connecting seats on the other side is abutted to the bottom of workbench, the side of two connecting seats on the other side is provided with alarm assembly, and the top of one connecting seat on the other side is provided with uncoupling assembly.

[0007] Preferably, the aforementioned disengagement assembly includes a fixing plate, a positioning spring, and a limiting protrusion. The fixing plate is fixedly connected to the top of one of the connecting seats on one side. The top of the fixing plate has an installation groove, and the positioning spring is installed inside the installation groove. The limiting protrusion is disposed on the positioning spring. The bottom of the installation groove has a recess, and one end of the positioning spring is inserted into the recess. Two spring plungers are installed on the fixing plate, and one end of the spring plunger abuts against the bottom of the positioning spring. Sliding grooves are provided on both sides of the installation groove, and a sliding plate is slidably connected inside the sliding groove. The bottom of the sliding plate is provided with a positioning hole above the limiting protrusion.

[0008] Preferably, the bottom of the workbench is provided with a fixing groove, and the sliding plate is installed inside the fixing groove.

[0009] Preferably, the alarm assembly described above includes a mounting plate, a PLC controller, an alarm, and a slotted photoelectric switch. The mounting plate is installed on one side of the two connecting seats on the other side, the PLC controller and the alarm are respectively installed on one side of the mounting plate, and the slotted photoelectric switch is installed inside the slot.

[0010] Preferably, the electrical signal output terminal of the aforementioned slotted photoelectric switch is connected to the electrical signal input terminal of the PLC controller, and the electrical output terminal of the PLC controller is connected to the electrical input terminal of the alarm.

[0011] Preferably, the drive assembly includes two fixed seats, a lead screw, and a mounting seat. The two fixed seats are fixedly connected to the inner bottom of the base. The lead screw is rotatably connected to the inner side of the two fixed seats. The mounting seat is movably sleeved on the outer side of the lead screw. A servo motor is installed on the inner bottom of the base. A coupling is installed on the output shaft of the servo motor. The other end of the coupling is installed on one end of the lead screw.

[0012] Preferably, the mounting base described above is threaded to the outside of the lead screw, and the mounting base is fixedly connected to one side of one of the connecting bases.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] When the worktable collides with another object, the worktable moves the sliding plate inside the groove. At this time, the sliding plate moves on top of the positioning spring, causing the limiting protrusion to disengage from the positioning hole. Then, the positioning spring is squeezed, and one end of the positioning spring moves inside the groove, causing the bottom of the worktable to disengage from the fixed plate and a connecting seat respectively. This prevents the worktable from continuing to move after the collision, thus avoiding further damage caused by the collision. At the same time, when the force on the worktable is less than the disengagement force, there is no relative displacement between the worktable and the mounting seat on the lead screw, resulting in higher accuracy of the worktable movement.

[0015] When one end of the positioning spring moves into the interior of the slotted photoelectric switch, it can block the light emitted from the transmitting end of the slotted photoelectric switch, preventing the receiving end from receiving the light. At this time, the slotted photoelectric switch transmits an electrical signal to the PLC controller, which then controls the alarm to start. The alarm can promptly remind personnel that the workbench has detached, allowing personnel to inspect and repair the device immediately. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the workbench of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixing plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the non-fixed connection structure of the driving structure and the execution structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Base; 2. Slide rail; 3. Slide block; 4. Connecting seat; 5. Worktable; 6. Fixing plate; 7. Mounting groove; 8. Positioning spring; 9. Limiting protrusion; 10. Groove; 11. Spring plunger; 12. Slide groove; 13. Sliding plate; 14. Positioning hole; 15. Fixing groove; 16. Mounting plate; 17. PLC controller; 18. Alarm; 19. Slotted photoelectric switch; 20. Fixing seat; 21. Lead screw; 22. Mounting seat; 23. Servo motor; 24. Coupling. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example

[0026] Please see Figures 1-5 The present invention provides a technical solution: an automatic disengagement drive mechanism, including a base 1; a connecting component, the connecting component being disposed on the inner side of the base 1, and a drive component being disposed on the bottom inner side of the base 1.

[0027] By setting up a connecting component, the worktable 5 can slide above the base 1. The connecting component includes two slide rails 2, two slide blocks 3, and four connecting seats 4. The two slide rails 2 are respectively installed on the inner sides of the base 1, the two slide blocks 3 are slidably connected to the outer side of the slide rails 2, and the four connecting seats 4 are respectively installed on one side of the two slide blocks 3. The worktable 5 is installed on the top of the two connecting seats 4 on one side, and the top of the two connecting seats 4 on the other side abuts against the bottom of the worktable 5. An alarm component is set on one side of the two connecting seats 4 on the other side, and a disengagement component is set on the top of one connecting seat 4 on the other side. By moving the slide blocks 3 on the connecting seats 4 outside the slide rails 2, the worktable 5 is moved on the top of the base 1.

[0028] By setting up a disengagement assembly, further damage to the equipment caused by collisions to the workbench 5 can be avoided. The disengagement assembly includes a fixed plate 6, a positioning spring 8, and a limiting protrusion 9. The fixed plate 6 is fixedly connected to the top of a connecting seat 4 on one side. The top of the fixed plate 6 has a mounting groove 7, and the positioning spring 8 is installed inside the mounting groove 7. The limiting protrusion 9 is set on the positioning spring 8. The bottom of the mounting groove 7 has a groove 10, and one end of the positioning spring 8 is inserted into the groove 10. Two spring plungers 11 are installed on the fixed plate 6, and one end of the spring plunger 11 abuts against the bottom of the positioning spring 8. Sliding grooves 12 are opened on both sides of the interior of the mounting groove 7. The internal sliding connection of the 2 is a sliding plate 13. The bottom of the sliding plate 13 is located above the limiting protrusion 9 and has a positioning hole 14. The bottom of the worktable 5 has a fixing groove 15 and the sliding plate 13 is installed inside the fixing groove 15. When the worktable 5 collides, the worktable 5 drives the sliding plate 13 to move inside the sliding groove 12. At this time, the sliding plate 13 moves on the top of the positioning spring 8, so that the limiting protrusion 9 is disengaged from the positioning hole 14. Then the positioning spring 8 is squeezed. At this time, one end of the positioning spring 8 moves inside the groove 10, so that the bottom of the worktable 5 is disengaged from the fixing plate 6 and a connecting seat 4 respectively, preventing the worktable 5 from continuing to move after being collided.

[0029] When fixed, the positioning spring 8, under the thrust of the two spring plungers 11, firmly locks the limiting protrusion 9 into the positioning hole 14 of the sliding plate 13. At this time, the fixed plate 6 and the sliding plate 13 are a fixedly connected whole. The spring plunger 11 is a standard part. Since the elastic force that the positioning spring 8 can provide is small, in order to ensure the synchronous movement between the sliding plate 13 and the fixed plate 6, additional thrust is needed to firmly press the limiting protrusion 9 of the positioning spring 8 into the positioning hole of the sliding plate.

[0030] By setting up an alarm component, personnel can be promptly alerted when the workbench 5 detaches, allowing them to immediately inspect the device. The alarm component includes a mounting plate 16, a PLC controller 17, an alarm 18, and a slotted photoelectric switch 19. The mounting plate 16 is installed on one side of the two connecting seats 4 on the other side. The PLC controller 17 and the alarm 18 are respectively installed on one side of the mounting plate 16. The slotted photoelectric switch 19 is installed inside the groove 10. The electrical signal output terminal of the slotted photoelectric switch 19 is connected to the electrical signal input terminal of the PLC controller 17, and the electrical output terminal of the PLC controller 17 is connected to the electrical input terminal of the alarm 18. When one end of the positioning spring 8 moves into the interior of the slotted photoelectric switch 19, it can block the light emitted by the transmitting end of the slotted photoelectric switch 19, preventing the receiving end from receiving the light. At this time, the slotted photoelectric switch 19 transmits an electrical signal to the PLC controller 17, which then controls the alarm 18 to be activated to alert personnel. The model of the slotted photoelectric switch 19 is HY301-07.

[0031] By setting up a drive assembly, the worktable 5 can be moved to meet the movement requirements of the worktable 5. The drive assembly includes two fixed seats 20, a lead screw 21, and a mounting seat 22. The two fixed seats 20 are fixedly connected to the inner bottom of the base 1. The lead screw 21 is rotatably connected to the inner side of the two fixed seats 20. The mounting seat 22 is movably sleeved on the outer side of the lead screw 21. A servo motor 23 is installed on the inner bottom of the base 1. A coupling 24 is installed on the output shaft of the servo motor 23. The other end of the coupling 24 is installed on one end of the lead screw 21. The mounting seat 22 is threaded to the outer side of the lead screw 21 and is fixedly connected to one side of a connecting seat 4. The output shaft of the servo motor 23 drives the lead screw 21 to rotate through the coupling 24, thereby driving the slide 3 on the connecting seat 4 to move outside the slide rail 2 through the mounting seat 22, thereby driving the worktable 5 to move on the top of the base 1, thus completing the drive of the worktable 5.

[0032] In terms of working principle or structural principle, during use, the servo motor 23 is started by controlling the switch group. The output shaft of the servo motor 23 drives the lead screw 21 to rotate through the coupling 24, thereby driving the slide 3 on the connecting seat 4 to move outside the slide rail 2 through the mounting seat 22, thereby driving the worktable 5 to move on the top of the base 1, completing the driving of the worktable 5. When the worktable 5 collides, the worktable 5 drives the sliding plate 13 to move inside the slide groove 12. At this time, the sliding plate 13 moves on the top of the positioning spring 8, causing the limiting protrusion 9 to disengage from the inside of the positioning hole 14. Then, the limiting protrusion 9 abuts against the sliding plate 13, causing the positioning spring 8 to be squeezed. At this time, one end of the positioning spring 8 moves inside the groove 10, causing the bottom of the worktable 5 to disengage from the fixed plate 6 and the connecting seat 4 respectively, thereby avoiding further damage caused by the collision.

[0033] When one end of the positioning spring 8 moves into the interior of the slotted photoelectric switch 19, it can block the light emitted by the transmitting end of the slotted photoelectric switch 19, so that the receiving end cannot receive the light. At this time, the slotted photoelectric switch 19 transmits an electrical signal to the PLC controller 17, and the PLC controller 17 controls the alarm 18 to start. The alarm 18 can promptly remind the personnel that the workbench 5 has been detached, so that the personnel can inspect and maintain the device as soon as possible.

[0034] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. An automatic disconnect drive mechanism characterized by: It comprises a base (1); A connecting assembly is arranged on the inner side of the base (1), and the bottom of the inner side of the base (1) is provided with a driving assembly; The connecting assembly comprises two slide rails (2), two slide seats (3) and four connecting seats (4), the two slide rails (2) are respectively arranged on the two sides of the inner side of the base (1), the two slide seats (3) are slidably connected to the outer sides of the slide rails (2), the four connecting seats (4) are respectively arranged on one side of the two slide seats (3), the top of the two connecting seats (4) on one side is provided with a workbench (5), the top of the two connecting seats (4) on the other side abuts against the bottom of the workbench (5), one side of the two connecting seats (4) on the other side is provided with an alarm assembly, and the top of the connecting seat (4) on the other side is provided with a disconnecting assembly.

2. An automatic release drive mechanism according to claim 1, wherein: The disconnecting assembly comprises a fixed plate (6), a positioning elastic sheet (8) and a limiting protrusion (9), the fixed plate (6) is fixedly connected to the top of the connecting seat (4) on one side, the top of the fixed plate (6) is provided with a mounting groove (7), the positioning elastic sheet (8) is arranged in the mounting groove (7), the limiting protrusion (9) is arranged on the positioning elastic sheet (8), the bottom of the mounting groove (7) is provided with a groove (10), one end of the positioning elastic sheet (8) is inserted into the groove (10), two spring plungers (11) are arranged on the fixed plate (6), one end of the spring plunger (11) abuts against the bottom of the positioning elastic sheet (8), and the inner sides of the mounting groove (7) are provided with a sliding groove (12), a sliding plate (13) is slidably connected in the sliding groove (12), and the bottom of the sliding plate (13) is provided with a positioning hole (14) above the limiting protrusion (9).

3. An automatic release drive mechanism according to claim 2, wherein: The bottom of the workbench (5) is provided with a fixed groove (15), and the sliding plate (13) is arranged in the fixed groove (15).

4. An automatic release drive mechanism according to claim 2, wherein: The alarm assembly comprises a mounting plate (16), a PLC controller (17), an alarm (18) and a groove-shaped photoelectric switch (19), the mounting plate (16) is arranged on one side of the two connecting seats (4) on the other side, the PLC controller (17) and the alarm (18) are respectively arranged on one side of the mounting plate (16), and the groove-shaped photoelectric switch (19) is arranged in the groove (10).

5. An automatic release drive mechanism according to claim 4, wherein: The electrical signal output end of the groove-shaped photoelectric switch (19) is connected with the electrical signal input end of the PLC controller (17), and the electrical output end of the PLC controller (17) is connected with the electrical input end of the alarm (18). The electrical signal output end of the groove-shaped photoelectric switch (19) is connected with the electrical signal input end of the PLC controller (17), and the electrical output end of the PLC controller (17) is connected with the electrical input end of the alarm (18).

6. An automatic release drive mechanism according to claim 1, wherein: Said driving assembly includes two fixed seats (20), a screw rod (21) and a mounting seat (22), the two fixed seats (20) are fixedly connected to the inner bottom of the base (1), the screw rod (21) is rotatably connected to the inner side of the two fixed seats (20), the mounting seat (22) is movably sleeved on the outer side of the screw rod (21), the inner bottom of the base (1) is provided with a servo motor (23), the output shaft of the servo motor (23) is provided with a shaft coupling (24), and the other end of the shaft coupling (24) is mounted on one end of the screw rod (21).

7. An automatic release drive mechanism according to claim 6, wherein: Said mounting seat (22) is connected to the outer side of the screw rod (21) through screw connection, and one side of the mounting seat (22) is fixedly connected to one of the connecting seats (4).

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