Protection device of servo system

Abstract

The utility model discloses a protection device of a servo system, and particularly relates to the technical field of servo systems, the protection device comprises a cylinder body, a telescopic joint is arranged in the cylinder body, a pushing block is fixed at the end part of the telescopic joint, a protection mechanism is arranged at the top of the cylinder body, the protection mechanism comprises a mounting bin, a motor is fixed at one end of the mounting bin, and the motor is fixed at the other end of the mounting bin. A winding shaft is arranged in the mounting bin, one end of the winding shaft is connected with the output shaft end of the motor, a piece of blocking cloth is further wound outside the winding shaft, a through hole is further formed in one side wall of the mounting bin, one end of the blocking cloth is fixed to the outer wall of the winding shaft, and the other end of the blocking cloth penetrates through the through hole and extends out of the mounting bin; by means of the arranged protection mechanism, the stroke route of the telescopic joint is shielded and protected through the blocking cloth in the protection mechanism, and therefore the problem that external sundries enter the position between the pushing block and the cylinder body and block the pushing block is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of servo systems, in particular to a protection device for a servo system. Background Art

[0002] The servo system is a feedback control system that accurately controls the mechanical position, speed and acceleration. It is widely used in the field of automation control. In order to ensure its safe, stable and reliable operation, it is usually equipped with a variety of protection devices.

[0003] The Chinese patent publication number CN116518049A discloses a servo electric cylinder with mechanical protection. The present invention first fixes a frame component on the outer wall of the cylinder body of the bearing seat, and adds a reinforcement component to the top right end of the frame component to increase the stability of the frame component. The frame component is installed with three layers of mounting components, and a leaf spring is installed at the contact position between the mounting component and the frame component. A common protective component is fixed to the outer end of the mounting component. The mounting component installs the protective component on four surfaces, and a synchronization component is installed between two symmetrical groups of mounting components. When one side is hit, the mounting components in both directions can absorb the impact through the synchronization component, and the buffer component on the mounting component is set as the main protective buffer to increase the buffering protection effect of the device. However, the existing servo electric cylinder is used in the working environment of the handling equipment. When the servo electric cylinder is working, the telescopic joint frequently reciprocates. After external debris falls into the travel route, the debris blocks the telescopic joint. The continued movement of the telescopic joint can easily cause damage to the telescopic component in the servo electric cylinder.

[0004] Therefore, it is necessary to invent a protection device for a servo system to solve the above problems. Utility Model Content

[0005] Technical issues solved:

[0006] In view of the deficiencies in the prior art, the utility model provides a protection device for a servo system, which solves the problems mentioned in the background technology.

[0007] Technical solution:

[0008] A protection device for a servo system comprises a cylinder body, in which a telescopic joint is arranged, a pushing block is fixed at the end of the telescopic joint, a protection mechanism is arranged on the top of the cylinder body, and the protection mechanism comprises: an installation bin, a motor is fixed at one end of the installation bin, a reel is arranged inside the installation bin, one end of the reel is connected to the output shaft end of the motor, a blocking cloth is also wound around the outside of the reel, a through hole is also opened on one side wall of the installation bin, one end of the blocking cloth is fixed to the outer wall of the reel, and the other end passes through the through hole and extends to the outside of the installation bin, a clamping plate is fixed to one side wall of the pushing block, and the clamping plate is fixedly connected to the extended end of the blocking cloth; a controller and an infrared sensor are also arranged on one side of the cylinder body, and a reflective plate corresponding to the infrared sensor is arranged on one side wall of the pushing block.

[0009] Preferably, two guide blocks are symmetrically arranged on the outer wall of the cylinder body, and two guide rods are symmetrically arranged outside the cylinder body. The two guide rods respectively penetrate the two guide blocks, and the ends of the guide rods are fixedly connected to the pushing blocks.

[0010] Preferably, a support plate is provided on the top of the guide block, a fixing rod is provided on one side of the support plate, the infrared sensor is fixed to the end of the fixing rod, the controller is fixed to the side wall of the support plate, and the controller and the infrared sensor and the controller and the motor are connected by cables.

[0011] Preferably, the outer sleeve of the guide rod is provided with a folding sleeve, the end face of the folding sleeve is a rectangular structure, the folding sleeve is a soft structure, a buffer block is provided at the end of the guide rod, and a limiting block is fixed on one side of the buffer block.

[0012] Preferably, a T-shaped block is provided at the end of the cloth, a slot matching the T-shaped block is opened at the end of the clamping plate, a threaded hole is opened at the top of the clamping plate, and the threaded hole passes through the slot, and the clamping plate and the T-shaped block are fixedly connected by bolts.

[0013] Preferably, a mounting hole is further provided on the top of the cylinder body, and a threaded column is fixed to the bottom of the mounting bin, and the threaded column is threadedly screwed into the mounting hole.

[0014] In the above technical solution, the technical effects provided by the utility model are:

[0015] By setting up a protective mechanism, the travel route of the telescopic joint is shielded and protected by a blocking cloth in the protective mechanism, thereby avoiding the problem of external debris entering between the push block and the cylinder body and blocking the push block, ensuring that the telescopic joint can move smoothly and unobstructed during the reciprocating movement, thereby ensuring that the structure in the cylinder body that drives the telescopic joint to move can operate stably and will not get stuck due to external debris blocking the push block. Under the action of the protective mechanism, the servo electric cylinder runs more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0019] Figure 3 It is a cross-sectional view of the installation bin of the utility model;

[0020] Figure 4 This is an exploded view of the cloth rolling assembly of the utility model;

[0021] Figure 5 This is a state diagram of the utility model after the protective mechanism is removed;

[0022] Figure 6 This is a schematic diagram of the structure of the clamping plate and the baffle of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the installation bin of the utility model;

[0024] Description of reference numerals:

[0025] 1. Cylinder body; 2. Push block; 3. Limit block; 4. Buffer block; 5. Folding sleeve; 6. Controller; 7. Mounting compartment; 71. Threaded column; 72. Mounting hole; 8. Cloth stopper; 9. Motor; 10. Support plate; 11. Guide block; 12. Guide rod; 13. Fixed rod; 14. Infrared sensor; 15. Reflector; 16. Bushing; 17. Through hole; 18. Scroll; 19. Telescopic joint; 20. Clamping plate; 21. Slot. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-7A protection device for a servo system shown in the figure comprises a cylinder body 1, a telescopic joint 19 is arranged in the cylinder body 1, a pushing block 2 is fixed at the end of the telescopic joint 19, a protection mechanism is arranged on the top of the cylinder body 1, and the protection mechanism comprises: an installation bin 7, a motor 9 is fixed at one end of the installation bin 7, a reel 18 is arranged inside the installation bin 7, one end of the reel 18 is connected to the output shaft end of the motor 9, a stopper cloth 8 is also wound around the outside of the reel 18, specifically, shaft sleeves 16 are arranged at both ends of the reel 18, the two shaft sleeves 16 are respectively fixed at the two ends of the installation bin 7, and grooves for placing and fixing the shaft sleeves 16 are opened at both ends of the installation bin 7; a through hole 17 is also opened on one side wall of the installation bin 7, one end of the stopper cloth 8 is fixed to the outer wall of the reel 18, and the other end passes through the through hole 17 and extends to the outside of the installation bin 7, a clamping plate 20 is fixed to one side wall of the pushing block 2, and the clamping plate 20 is fixedly connected to the extended end of the stopper cloth 8;

[0028] A controller 6 and an infrared sensor 14 are also provided on one side of the cylinder body 1, and a reflective plate 15 corresponding to the infrared sensor 14 is provided on one side wall of the push block 2;

[0029] A support plate 10 is provided on the top of the guide block 11, a fixing rod 13 is provided on one side of the support plate 10, an infrared sensor 14 is fixed to the end of the fixing rod 13, a controller 6 is fixed to the side wall of the support plate 10, and the controller 6 and the infrared sensor 14 and the controller 6 and the motor 9 are connected by cables; specifically, it has been disclosed in the Chinese publication number CN113131665A, the patent name of which is a servo electric cylinder, and the working principle of the cylinder body 1 of the present invention can refer to the working principle of the patent;

[0030] When the telescopic joint 19 drives the push block 2 to move toward one side of the cylinder body 1, the space between the push block 2 and the cylinder body 1 is in an open state. At this time, under the shielding effect of the blocking cloth 8, the space between the push block 2 and the cylinder body 1 (that is, the travel route of the above-mentioned telescopic joint) is protected, and external objects cannot enter the space. After the external objects fall on the blocking cloth 8, they are supported by the blocking cloth 8 or move to both sides of the blocking cloth 8.

[0031] In some examples, two guide blocks 11 are symmetrically arranged on the outer wall of the cylinder body 1, and two guide rods 12 are symmetrically arranged on the outside of the cylinder body 1. The two guide rods 12 respectively penetrate the two guide blocks 11, and the ends of the guide rods 12 are fixedly connected to the pushing block 2; specifically, during the reciprocating motion of the telescopic joint 19, the guide rod 12 is driven by the pushing block 2, and the guide rod 12 moves in a straight line under the restriction of the guide block 11. The cooperation between the guide rod 12 and the guide block 11 is conducive to strengthening the strength and stability of the telescopic joint 19, ensuring that the telescopic joint 19 will not shake or sway during movement, and the moving direction of the object pushed by it is also more accurate.

[0032] In some examples, the outer sleeve of the guide rod 12 is provided with a folding sleeve 5, the end face of the folding sleeve 5 is a rectangular structure, the folding sleeve 5 is a soft structure, a buffer block 4 is provided at the end of the guide rod 12, a limiting block 3 is fixed on one side of the buffer block 4, and the limiting block 3 is fixed on the outer wall of the cylinder body 1. Specifically, the folding sleeve 5 is made of rubber material, the inside of the folding sleeve 5 is a hollow structure, and the outside of the folding sleeve 5 is a corrugated structure. During the movement of the guide rod 12, the folding sleeve 5 is pushed, and the guide rod 12 drives the buffer block 4 to move, and the folding sleeve 5 is compressed at the same time.

[0033] In some examples, a T-shaped block is provided at the end of the cloth baffle 8, a slot 21 matching the T-shaped block is opened at the end of the clamping plate 20, a threaded hole is opened at the top of the clamping plate 20, and the threaded hole passes through the slot 21, and the clamping plate 20 and the T-shaped block are fixedly connected by bolts; specifically, during the installation process of the end of the cloth baffle 8 and the clamping plate 20, the cloth baffle 8 is horizontally inserted into the slot 21 from the side wall of the clamping plate 20, and then the clamping plate 20 is vertically screwed into the bolt, and the bolt passes through the T-shaped block, thereby connecting the end of the cloth baffle 8 to the clamping plate 20.

[0034] In some examples, a mounting hole 72 is further provided at the top of the cylinder body 1, and a threaded column 71 is fixed at the bottom of the mounting chamber 7, and the threaded column 71 is threadedly engaged with the mounting hole 72; specifically, an inner wall of the mounting hole 72 is provided with an internal thread, and during the installation of the mounting chamber 7, the threaded column 71 is manually aligned with the mounting hole 72, and the mounting chamber 7 is rotated clockwise, so that the threaded column 71 can be screwed into the mounting hole 72, thereby completing the installation of the mounting chamber 7.

[0035] Through the above technical scheme: when in use, the servo electric cylinder of the present invention is used for the pushing structure of the handling equipment. During the use, the telescopic joint 19 makes reciprocating motion. During the movement of the telescopic joint 19, it pushes and drives the pushing block 2 to move. The pushing block 2 pushes the target object. During this process, the pushing block 2 is actuated and drives the reflector 15 to move, and also pulls the clamping plate 20. The clamping plate 20 directly drives the cloth blocking 8. At the same time, the infrared sensor 14 detects the movement of the reflector 15. The infrared sensor 14 transmits the information to the controller 6. The controller 6 transmits the information to the motor 9. The motor 9 is powered on and works. The motor 9 drives the reel 18 to rotate, so that the cloth blocking 8 is loosened and stretched. The cloth blocking 8 blocks the space between the cylinder body 1 and the pushing block 2 for protection.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A servo system protection device, comprising a cylinder (1), characterized in that: The cylinder body (1) is provided with a telescopic joint (19), a push block (2) is fixed to the end of the telescopic joint (19), and a protective mechanism is provided on the top of the cylinder body (1), the protective mechanism comprising: A mounting chamber (7), a motor (9) being fixed at one end of the mounting chamber (7), a reel (18) being arranged inside the mounting chamber (7), one end of the reel (18) being connected to an output shaft end of the motor (9), and a stop cloth (8) being wound around the outside of the reel (18), A through hole (17) is also formed on one side wall of the installation bin (7); one end of the blocking cloth (8) is fixed to the outer wall of the reel (18); the other end passes through the through hole (17) and extends to the outside of the installation bin (7); a clamping plate (20) is fixed on one side wall of the pushing block (2); the clamping plate (20) is fixedly connected to the extended end of the blocking cloth (8); A controller (6) and an infrared sensor (14) are also provided on one side of the cylinder body (1), and a reflective plate (15) corresponding to the infrared sensor (14) is provided on one side wall of the push block (2).

2. A servo system protection device according to claim 1, characterized in that: Two guide blocks (11) are symmetrically arranged on the outer wall of the cylinder body (1), and two guide rods (12) are symmetrically arranged outside the cylinder body (1). The two guide rods (12) respectively penetrate the two guide blocks (11), and the ends of the guide rods (12) are fixedly connected to the push block (2).

3. A servo system protection device according to claim 2, characterized in that: A support plate (10) is arranged on the top of the guide block (11), a fixing rod (13) is arranged on one side of the support plate (10), the infrared sensor (14) is fixed to the end of the fixing rod (13), the controller (6) is fixed to the side wall of the support plate (10), and the controller (6) and the infrared sensor (14) and the controller (6) and the motor (9) are connected via cables.

4. A servo system protection device according to claim 2, characterized in that: The guide rod (12) is externally sleeved with a folding sleeve (5), the end surface of the folding sleeve (5) is a rectangular structure, the folding sleeve (5) is a soft structure, and a buffer block (4) is disposed at the end of the guide rod (12), and a limiting block (3) is fixed on one side of the buffer block (4).

5. The protection device for a servo system according to claim 1, characterized in that: A T-shaped clamping block is arranged at the end of the baffle (8), a slot (21) matching with the T-shaped clamping block is opened at the end of the clamping plate (20), a threaded hole is opened at the top of the clamping plate (20), and the threaded hole passes through the slot (21), and the clamping plate (20) and the T-shaped clamping block are fixedly connected by bolts.

6. The protection device for a servo system according to claim 1, characterized in that: The top of the cylinder body (1) is also provided with a mounting hole (72), and the bottom of the mounting chamber (7) is fixed with a threaded column (71), and the threaded column (71) is threadedly engaged with the mounting hole (72).

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