Damage-proof equipment for displacement platform
By setting up a double detection component and a grating reading head switching mechanism on the lead screw guide, the problem of screw guide damage caused by inaccurate reading of the grating scale is solved, and the equipment is protected from damage protection.
Patent Information
- Application Number
- CN202422465162.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-12
AI Technical Summary
During operation, the screw guide may be inaccurate in positioning due to inaccurate reading of the grating scale, or even move to the end and continue to rotate, causing damage.
The switching mechanism of the dual detection component and grating reading head is adopted. The reading error is detected through the pressure sensor and the timer, and the backup grating reading head is automatically switched to prevent damage. The position switching and power management of the grating reading head is achieved by controlling the motor and switch using the microcontroller.
It effectively prevents damage caused by inaccurate reading of lead screw rails, ensures normal operation of the equipment, and reduces equipment losses.
Smart Images
Figure CN223289410U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of displacement platforms, in particular to a displacement platform anti-damage device. Background Art
[0002] Screw guides are high-precision linear transmission products. The screw and guide rails can be combined to form a linear motion system. The screw is responsible for positioning and converting rotational motion into linear motion to drive the guide rail movement. The guide rail is responsible for transferring the components to the target position. The rigidity, reliability, low noise and other performance characteristics of machine tool lead screw guides have made it used in more and more industries. For example, machine tools such as cutting, lathes, drilling machines, milling machines, and punching machines all use machine tool lead screw guides. Machine tool lead screw guides are an important component of precision mechanical systems. They have many excellent performances and have been widely used in the industry. However, there are many deficiencies in the use of lead screw guides: during operation, the lead screw guide may be positioned inaccurately due to inaccurate readings of the grating scale, affecting the work results, and the lead screw guide may be damaged by moving to the end but still rotating due to inaccurate readings of the grating scale, causing losses. Utility Model Content
[0003] In view of the above, the present invention provides a displacement platform anti-damage device to solve the problems raised in the above background technology.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a displacement platform anti-damage device, including a device body, a grating ruler, and a screw guide rail. The grating ruler and the device body are both located on the screw guide rail. The device body includes two groups of detection components and a moving component. The detection component includes a pressure sensor for detecting pressure and a timer for timing the pressure. The output end of the pressure sensor is connected to the input end of the timer. The timer and the pressure sensor are located on the screw guide rail. The screw guide rail includes a movable slide and a guide rail for the slide to slide. The two groups of detection components are arranged relative to each other. One set of detection components is located on the end face of the guide rail above the slide, and the other set is located on the end face of the guide rail facing the slide; the grating ruler includes a scale grating installed on the guide rail, a main grating reading head installed on the slide for reading, and a moving component is installed on the slide, which includes a secondary grating reading head for standby reading, a slide rail for sliding the main grating reading head and the secondary grating reading head, a motor driving the main grating reading head and the secondary grating reading head to slide on the slide rail, and a fixed line for placing the main grating reading head and the secondary grating reading head in the correct position, and the timer output end is connected to the motor input end.
[0005] Furthermore, the fixed line includes a positioning line for placing the main grating reading head or the auxiliary grating reading head in the correct position, two storage lines for storing the main grating reading head or the auxiliary grating reading head, and the positioning line is located between the two storage lines. The positioning line is used to position the main grating reading head or the auxiliary grating reading head for reading, and the storage line is used to position the main grating reading head or the auxiliary grating reading head for not reading.
[0006] Furthermore, a switch is provided on the main body of the device, and a microcontroller is provided in the switch. The microcontroller is electrically connected to the switch, grating scale, lead screw guide, detection component, and moving component respectively, and receives signals and transmits and sends signals through the microcontroller.
[0007] Furthermore, a power cord connected to an external power source is provided on the lead screw guide rail, and an output end of the power cord is connected to an input end of the switch, and electric energy is provided thereto through the power cord.
[0008] Furthermore, after the main grating reading head is replaced, the timer timing limit is 3-5 seconds. After the main grating reading head is replaced, if the timing exceeds 3-5 seconds and is still squeezed, the power is cut off.
[0009] The beneficial effect of the present invention is that when the screw guide rail is in operation, if the slide runs to the end of the guide rail and continues to work, it may be caused by inaccurate reading of the grating reading head on the grating scale, so the grating reading head is automatically replaced to restore the normal operation of the screw guide rail. When the screw guide rail still runs after the grating reading head is replaced, it is proved that the problem is not the grating reading head reading problem, and the screw guide rail stops running to prevent damage to the screw guide rail. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural diagram of the present utility model.
[0011] Figure 2 It is a structural diagram of the mobile component of the utility model before it moves.
[0012] Figure 3 It is a structural schematic diagram of the utility model after the moving component moves.
[0013] exist Figure 1-Figure 3 Among them, 1. Screw guide; 101. Slide; 102. Guide rail; 2. Grating ruler; 201. Scale grating; 202. Main grating reading head; 203. Secondary grating reading head; 3. Device body; 301. Detection component; 302. Pressure sensor; 303. Timer; 304. Moving component; 305. Slide rail; 306. Motor; 307. Positioning line; 308. Storage line; 309. Switch; 310. Microcontroller; 311. Power line. DETAILED DESCRIPTION
[0014] The present invention will be further described below with reference to the accompanying drawings and some embodiments.
[0015] exist Figure 1-Figure 3In the invention, a displacement platform anti-damage device includes a device body 3, a grating ruler 2, and a screw guide rail 1. The grating ruler 2 and the device body 3 are both located on the screw guide rail 1. The device body 3 includes two sets of detection components 301 and a moving component 304. The detection component 301 includes a pressure sensor 302 for detecting pressure and a timer 303 for timing the pressure. The output end of the pressure sensor 302 is connected to the input end of the timer 303. The timer 303 and the pressure sensor 302 are located on the screw guide rail 1. The screw guide rail 1 includes a movable slide 101 and a guide rail 102 for the slide 101 to slide. The two sets of detection components 301 are arranged opposite to each other, and one set of detection components 301 is located on the slide 101 at the end of the guide rail 102. The other set is located on the end face of the guide rail 102 facing the slide 101. There are two sets of detection components 301. When the slide 101 is damaged, the detection component 301 on the guide rail 102 can be detected. When the guide rail 102 is damaged, the detection component 301 on the slide 101 can be detected. The double detection minimizes the risk of damage to the screw guide rail 1. Under normal circumstances, the length of the guide rail 102 will be slightly larger than the actual value. Therefore, the slide 101 will not interact with the end of the guide rail 102 during normal sliding, and the guide rail 102 will not be squeezed on the slide 101. Under the influence of readings and other reasons, the slide 101 may continue to move so that the slide 101 moves to the end of the guide rail 102, causing the two end faces of the slide 101 and the guide rail 102 to be compressed. The force is applied, and then the pressure sensor 302 is subjected to pressure and transmits the pressure signal to the timer 303; the grating ruler 2 includes a scale grating 201 mounted on the guide rail 102, a main grating reading head 202 mounted on the slide 101 for reading, the scale grating 201 is used in conjunction with the grating reading head for reading, and the moving component 304 is mounted on the slide 101, which includes a sub-grating reading head 203 for standby reading, a slide rail 305 for the main grating reading head 202 and the sub-grating reading head 203 to slide, a motor 306 that drives the main grating reading head 202 and the sub-grating reading head 203 to slide on the slide rail 305, a fixing line for placing the main grating reading head 202 and the sub-grating reading head 203 in the correct position, and the motor 306. 6 are respectively connected to the main grating reading head 202, the auxiliary grating reading head 203, and the slide rail 305, and the output end of the timer 303 is connected to the input end of the motor 306. If the slide 101 moves to the end of the guide rail 102 and continues to move due to inaccurate readings of the main grating reading head 202, the pressure sensor 302 is squeezed and transmits the signal to the microcontroller 310 through the timer 303. Then the microcontroller 310 receives the signal and drives the motor 306 to drive the main grating reading head 202 and the auxiliary grating reading head 203 to move to the right synchronously, so that the auxiliary grating reading head 203 moves to the positioning line 307 for reading, and the main grating reading head 202 moves to the right storage line 308 to wait for replacement, and then the screw guide rail 1 resumes normal operation.
[0016] In this embodiment, the fixed line includes a positioning line 307 for placing the main grating reading head 202 or the auxiliary grating reading head 203 in the correct position, and two storage lines 308 for storing the main grating reading head 202 or the auxiliary grating reading head 203. The positioning line 307 is located between the two storage lines 308. The positioning line 307 is used to position the main grating reading head 202 or the auxiliary grating reading head 203 for reading, and the storage line 308 is used to position the main grating reading head 202 or the auxiliary grating reading head 203 for not reading. Under normal circumstances, the main grating reading head 202 is fixed on the positioning line 307 for reading, and the auxiliary grating reading head 203 is stored on the left storage line 308 for standby. When it is found that the reading is inaccurate, the motor 306 drives the main grating reading head 202 and the auxiliary grating reading head 203 to move to the right synchronously, so that the auxiliary grating reading head 203 moves to the positioning line 307 for reading, and the main grating reading head 202 moves to the right storage line 308 to wait for replacement.
[0017] In this embodiment, a switch 309 is provided on the device body 3, and a microcontroller 310 is provided in the switch 309. The microcontroller 310 can be operated by the switch 309 to adjust the device body 3, the grating scale 2 and the screw guide 1. The microcontroller 310 is electrically connected to the switch 309, the grating scale 2, the screw guide 1, the detection component 301 and the moving component 304 respectively. The microcontroller 310 receives signals and transmits signals. For example, the microcontroller 310 can realize the timing time of the receiving timer 303, and send instructions to replace the main grating reading head 202 according to the timing time, or receive the timing time to turn off the switch 309 and cut off the power supply.
[0018] In this embodiment, a power cord 311 connected to an external power source is provided on the lead screw guide rail 1. The output end of the power cord 311 is connected to the input end of the switch 309. When the power is turned on through the power cord 311, electric energy is provided to the switch 309.
[0019] In this embodiment, after the main grating reading head 202 is replaced, the timing limit of the timer 303 is 3-5 seconds. After the main grating reading head 202 is replaced, if it is still squeezed after the timing exceeds 3-5 seconds, it proves that the screw guide rail 1 is moving continuously due to reasons other than reading, and the power is cut off to reduce damage to the screw guide rail 1.
[0020] In this embodiment, the screw guide rail 1 is a common screw guide rail device, such as a PMI screw guide rail, a DBX series linear guide rail, etc.
[0021] In this embodiment, the microcontroller 310 is a common electrical component, such as a single chip microcomputer of the AT89C2051 or TMS320VC5509A model.
[0022] In this embodiment, the timer 303 is a common timer device, such as a KG316T timer.
[0023] In this embodiment, the pressure sensor 302 is a common pressure sensor device, such as an LWPF2 pressure sensor.
[0024] In this embodiment, the switch 309 is a common control panel switch, such as a control panel of model ZZ-2020, model iTC602TAT-2, etc.
[0025] In this embodiment, the control circuit of the present invention is a common circuit in the circuit field. The device of the present invention can be connected to an external power supply or a built-in battery through a power cord to provide power to the device. Technicians in the relevant technical field can implement it and will not be elaborated here.
[0026] The utility model is specifically implemented as follows: when in use, the power supply is connected through the power cord 311 to provide power, the switch 309 is turned on, and the microcontroller 310 receives information and transmits the instruction information. During the use of the lead screw guide 1, if the main grating reading head 202 reads inaccurately, causing the slide 101 to move to the end of the guide rail 102 and continue to move, the pressure sensor 302 is squeezed and the signal is transmitted to the microcontroller 310 through the timer 303. Then the microcontroller 310 receives the signal and drives the motor 306 to drive the main grating reading head 202 to read the inaccurate reading. The head 202 and the auxiliary grating reading head 203 move to the right synchronously, so that the auxiliary grating reading head 203 moves to the positioning line 307 for reading, and the main grating reading head 202 moves to the right storage line 308 to wait for replacement, and then the screw guide rail 1 resumes normal operation. If after replacing the main grating reading head 202, the timer 303 receives the extrusion information for more than 3-5 seconds, it proves that the screw guide rail 1 has been moving not due to the reading reason, then the microcontroller 310 receives the signal to disconnect the switch 309, so that the screw guide rail 1 stops moving to reduce losses.
[0027] It is worth noting that, in the description of this utility model, "plurality" means two or more, unless otherwise specifically defined. In this utility model, unless otherwise specified and defined, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integral connection; it can also be mechanical connection. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.
[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and is intended to encompass all variations within the meaning and scope of the claims. Any reference signs in the claims should not be construed as limiting the claim to which they relate.
Claims
1. A displacement platform anti-damage device, comprising a device body, a grating scale, and a lead screw guide rail, wherein the grating scale and the device body are both located on the lead screw guide rail, and characterized in that: The main body of the device includes two groups of detection components and a moving component. The detection component includes a pressure sensor for detecting pressure and a timer for timing the pressure. The output end of the pressure sensor is connected to the input end of the timer. The timer and the pressure sensor are located on a screw guide rail. The screw guide rail includes a movable slide and a guide rail for the slide to slide. The two groups of detection components are arranged opposite to each other, one of which is located on the end face of the guide rail above the slide, and the other is located on the end face of the guide rail facing the slide. The grating ruler includes a scale grating installed on a guide rail, a main grating reading head installed on a slide for reading, and a moving component installed on the slide, which includes a secondary grating reading head for standby reading, a slide rail for sliding the main grating reading head and the secondary grating reading head, a motor driving the main grating reading head and the secondary grating reading head to slide on the slide rail, and a fixing line for placing the main grating reading head and the secondary grating reading head in the correct position. The output end of the timer is connected to the input end of the motor.
2. The anti-damage device for a displacement platform according to claim 1, characterized in that: The fixed line includes a positioning line for placing the main grating reading head or the auxiliary grating reading head in the correct position, and two storage lines for storing the main grating reading head or the auxiliary grating reading head, and the positioning line is located between the two storage lines.
3. The anti-damage device for a displacement platform according to claim 1, characterized in that: The device body is provided with a switch, and a microcontroller is provided in the switch. The microcontroller is electrically connected with the switch, the grating ruler, the lead screw guide rail, the detection component, and the moving component respectively.
4. The anti-damage device for a displacement platform according to claim 1, characterized in that: A power line connected to an external power source is provided on the lead screw guide rail, and an output end of the power line is connected to an input end of the switch.
5. The anti-damage device for a displacement platform according to claim 1, characterized in that: After the main grating reading head is replaced, the timer timing limit is 3-5 seconds.