Method for detecting output of pin shaft type force sensor to electric cylinder
By installing a pin-type force sensor at the end joint U fork of the electric cylinder, and combining the limit seat and clamping structure, the problem of line chaos in the wire exposed to the outside and under the vibration environment is solved, achieving higher detection accuracy and service life.
Patent Information
- Application Number
- CN202510065746.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-04-29
AI Technical Summary
When the existing pin-type force sensor detects the output of the electric cylinder, the wires are exposed to the outside, which are easily affected by the external environment, and the service life and accuracy are difficult to guarantee. In addition, line chaos is prone to occur in vibration environments, affecting the detection results.
A pin-type force sensor detection method is designed. By installing a pin-type force sensor at the end joint U fork of the electric cylinder, and using a limit seat to penetrate the wire vertically, combining the clamping structure of the pull ring and the spring, the wire is prevented from shaking; at the same time, through the dual function of the meshing connection between the handwheel and the gear, the bearing seat is clamped to prevent it from shaking.
It effectively prevents the wire from shaking and line chaos due to vibration during the detection process, improves the detection accuracy and service life, and can adapt to wires of different specifications and sizes to ensure the smooth progress of the inspection work.
Smart Images
Figure CN119901398A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of industrial automation control, and in particular to a method for detecting the output of an electric cylinder by a pin-type force sensor. Background Art
[0002] As a key actuator in modern industrial automation equipment, accurate detection of the output of the electric cylinder is crucial to ensure the normal operation and precision control of the equipment. In the existing technology, the detection methods of the electric cylinder output usually include direct measurement and indirect measurement. The direct measurement method directly obtains the output data by installing a force sensor inside the electric cylinder, but this method has the problem of complex sensor installation and high cost. The indirect measurement method indirectly calculates the output of the electric cylinder by detecting the current, voltage and other parameters of the electric cylinder, but this method is greatly affected by environmental factors and the measurement accuracy is difficult to guarantee.
[0003] The existing technical solutions have the following deficiencies:
[0004] First, when the existing pin-type force sensor detects the output of the electric cylinder, its wires are exposed to the outside, which not only affects its aesthetics but also makes it easily affected by the harsh external environment, thereby reducing its service life and use value. At the same time, it is easy to cause line confusion in a vibrating environment, which has a certain impact on the detection work and makes it difficult to carry out subsequent detection work smoothly.
[0005] Second, the existing pin-type force sensor is directly inserted into the interior of the mounting surface when it is installed and fixed. Such a fixing structure is relatively simple. During the detection operation, it is easy to be affected by the vibration force from the operation of the machine and thus shake, thereby affecting the monitoring results;
[0006] Therefore, we need to design a pin-type force sensor to detect the output of the electric cylinder to solve the above-mentioned problems. Summary of the invention
[0007] The object of the present invention is to provide a method for detecting the output of an electric cylinder by a pin-type force sensor, so as to solve the problem that the wires of the existing pin-type force sensor are exposed to the outside during detection as mentioned in the above background technology.
[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a method for detecting the output of an electric cylinder by a pin-type force sensor, comprising a base, an electric cylinder body is fixed above the base, and a connecting rod is fixed at the output end of the electric cylinder body, an electric cylinder end joint U fork is fixed above the connecting rod, and a through groove is provided inside the electric cylinder end joint U fork, a bearing seat is horizontally penetrated inside the through groove, and an electric wire is fixedly connected to one side of the bearing seat, a connecting plate is fixed to one side of the electric cylinder end joint U fork, and a limit seat is fixed above the connecting plate, and the electric wire vertically penetrates the inside of the limit seat.
[0009] Preferably, mounting seats are fixed on both sides of the limit seat, a movable rod is horizontally passed through the interior thereof, a pull ring is fixed to the outer side of the movable rod, a mounting seat is fixed to the inner side of the movable rod and moves inside the limit seat, a spring is wound on the outer side of the movable rod, a limit groove is provided on the inner side of the mounting seat, and an anti-slip protrusion is fixed inside the limit groove.
[0010] Preferably, the cross-section of the anti-slip protrusions is circular, and they are arranged at equal intervals on the inner side of the anti-slip protrusions.
[0011] Preferably, the anti-slip protrusion is configured in a V-shape, which can clamp wires of different sizes.
[0012] Preferably, a handwheel is rotatably connected to the outer side of the U fork of the end joint of the electric cylinder below the bearing seat, and a receiving groove is opened inside the U fork of the end joint of the electric cylinder, which is provided with two groups, and the inside of the receiving groove is rotatably connected to the forward and reverse screws, and a first bevel gear is fixed to the outside of the forward and reverse screws, and a rotating shaft is rotatably connected to the inside of the receiving groove at the front end of the forward and reverse screws, and a second bevel gear is fixed to the outside of the rotating shaft, and the second bevel gear is meshingly connected to the first bevel gear, and a positioning groove is opened inside the U fork of the end joint of the electric cylinder above the accommodating groove, and a threaded sleeve is provided on the outer side of the forward and reverse screws, and the threaded sleeve moves inside the positioning groove, and is inserted into the interior of the bearing seat.
[0013] Preferably, the positioning block is L-shaped, and its width is the same as the width of the bearing seat.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] (1) By installing a pin-type force sensor at the U fork at the end of the electric cylinder, when the electric cylinder moves, the radial force of the U fork at the end of the electric cylinder acts on the pin-type force sensor, causing the strain gauge on the pin-type force sensor to deform, thereby causing the output voltage of the bridge measurement circuit to change. By measuring and analyzing the change in output voltage, the magnitude and direction of the radial force acting on the pin can be calculated, that is, the magnitude and direction of the output force of the electric cylinder. At the same time, by turning the hand wheel and under the dual effects of the threaded connection and the gear meshing connection, the bearing seat can be clamped and limited to prevent it from shaking due to the vibration of the machine during the detection process;
[0016] (2) By installing the limit seat, the wire is vertically passed through the inside. At this time, the pull ring is pulled and under the elastic action of the spring, the clamping seat can be driven to limit and fix the wire to prevent the wire from shaking, thereby causing line confusion and affecting the detection work to a certain extent. At the same time, by setting the limit groove, wires of different specifications and sizes can be limited and fixed. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the U-fork at the end joint of the electric cylinder of the present invention;
[0020] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the limit seat of the present invention;
[0021] Figure 4 It is a schematic diagram of the side cross-sectional structure of the U-fork at the end joint of the electric cylinder of the present invention;
[0022] Figure 5 It is a schematic diagram of the force structure of the pin-type force sensor of the present invention.
[0023] Explanation of the reference numerals in the figure: 1. base; 2. electric cylinder body; 3. connecting rod; 4. bearing seat; 5. U fork of the electric cylinder end joint; 6. electric wire; 7. limiting seat; 8. clamping seat; 9. mounting seat; 10. movable rod; 11. spring; 12. anti-slip protrusion; 13. limiting groove; 14. pull ring; 15. through groove; 16. receiving groove; 17. threaded sleeve; 18. positioning block; 19. positioning groove; 20. forward and reverse thread screw; 21. first bevel gear; 22. second bevel gear; 23. hand wheel; 24. rotating shaft. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.
[0025] Embodiment 1
[0026] In order to solve the problem that the wires of the existing pin-type force sensor are exposed to the outside during detection, the following solution is disclosed, specifically: Figure 1 , Figure 2 and Figure 3 As shown:
[0027] A method for detecting the output of an electric cylinder by a pin-type force sensor, comprising a base 1, an electric cylinder body 2 is fixed above the base 1, and a connecting rod 3 is fixed at the output end of the electric cylinder body 2, an electric cylinder end joint U fork 5 is fixed above the connecting rod 3, and a through groove 15 is provided inside the electric cylinder end joint U fork 5, a bearing seat 4 is horizontally penetrated inside the through groove 15, and a wire 6 is fixedly connected to one side of the bearing seat 4, a connecting plate is fixed to one side of the electric cylinder end joint U fork 5, and a limit seat 7 is fixed above the connecting plate, and the wire 6 vertically penetrates inside the limit seat 7;
[0028] The two sides of the limit seat 7 are fixed with mounting seats 9, and a movable rod 10 is horizontally penetrated inside the limit seat 7. A pull ring 14 is fixed to the outside of the movable rod 10. The mounting seat 9 is fixed to the inside of the movable rod 10, which moves inside the limit seat 7. A spring 11 is wound around the outside of the movable rod 10. A limit groove 13 is arranged on the inside of the mounting seat 9, and an anti-slip protrusion 12 is fixed inside the limit groove 13.
[0029] The cross-section of the anti-slip protrusions 12 is circular, and the anti-slip protrusions 12 are arranged at equal intervals on the inner side of the anti-slip protrusions 12;
[0030] The anti-slip protrusion 12 is V-shaped and can clamp wires 6 of different sizes.
[0031] In this embodiment, when in use, the wire 6 is vertically passed through the interior of the limit seat 7. At this time, the pull ring 14 is pulled and under the elastic action of the spring 11, the clamping seat 8 is driven to move inside the limit seat 7, thereby limiting and clamping the outer side of the wire 6 to prevent the line from becoming chaotic and causing a certain impact on the detection work.
[0032] Embodiment 2
[0033] This embodiment is different from the first embodiment. The support base 4 can be fixed by a fixing assembly to prevent it from shaking. Figure 4 and Figure 5 As shown:
[0034] The outer side of the electric cylinder end joint U fork 5 below the bearing seat 4 is rotatably connected with a hand wheel 23, and the inner side of the electric cylinder end joint U fork 5 is provided with a receiving groove 16, which is provided with two groups, and the inner side of the receiving groove 16 is rotatably connected with a positive and negative threaded screw 20, and a first bevel gear 21 is fixed to the outer side of the positive and negative threaded screw 20, and the inner side of the receiving groove 16 at the front end of the positive and negative threaded screw 20 is rotatably connected with a rotating shaft 24, and a second bevel gear 22 is fixed to the outer side of the rotating shaft 24, and the second bevel gear 22 is meshed and connected with the first bevel gear 21, and a positioning groove 19 is provided inside the electric cylinder end joint U fork 5 above the accommodating groove 16, and a threaded sleeve 17 is sleeved on the outer side of the positive and negative threaded screw 20, and the threaded sleeve 17 moves inside the positioning groove 19, and is inserted into the inner side of the bearing seat 4;
[0035] The positioning block 18 is L-shaped, and its width is the same as the width of the bearing seat 4 .
[0036] In this embodiment, when in use, the bearing seat 4 is installed at the U-fork position of the electric cylinder body 2 to ensure good contact and fixation between the bearing seat 4 and the U-fork. At this time, by turning the hand wheel 23 and under the dual effects of the threaded connection and the gear meshing connection, the bearing seat 4 can be clamped and limited. The bearing seat 4 collects the force signal of the pin shaft in real time during the operation of the electric cylinder body 2, and converts the force signal into an electrical signal. At this time, the electrical signal output by the bearing seat 4 is amplified, filtered, etc., and then input into the data acquisition system for storage and analysis, so that the output size and direction of the electric cylinder can be displayed in real time.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A method for detecting the output of an electric cylinder by a pin-type force sensor, comprising a base (1), characterized in that: An electric cylinder body (2) is fixed above the base (1), and a connecting rod (3) is fixed at the output end of the electric cylinder body (2); an electric cylinder end joint U fork (5) is fixed above the connecting rod (3), and a through groove (15) is provided inside the electric cylinder end joint U fork (5); a bearing seat (4) is horizontally penetrated inside the through groove (15), and an electric wire (6) is fixedly connected to one side of the bearing seat (4); a connecting plate is fixed to one side of the electric cylinder end joint U fork (5), and a limit seat (7) is fixed above the connecting plate, and the electric wire (6) vertically penetrates inside the limit seat (7).
2. The method for detecting the output of an electric cylinder by a pin-type force sensor according to claim 1, characterized in that: Mounting seats (9) are fixed on both sides of the limiting seat (7), and a movable rod (10) is passed through the inside of the limiting seat transversely. A pull ring (14) is fixed on the outside of the movable rod (10). A mounting seat (9) is fixed on the inside of the movable rod (10) and moves inside the limiting seat (7). A spring (11) is wound on the outside of the movable rod (10). A limiting groove (13) is arranged on the inside of the mounting seat (9), and an anti-slip protrusion (12) is fixed inside the limiting groove (13).
3. The method for detecting the output of an electric cylinder by a pin-type force sensor according to claim 2, characterized in that: The cross-section of the anti-slip protrusions (12) is circular, and they are arranged at equal intervals on the inner side of the anti-slip protrusions (12).
4. The method for detecting the output of an electric cylinder by a pin-type force sensor according to claim 1, characterized in that: The anti-slip protrusion (12) is configured in a V-shape and can clamp electric wires (6) of different sizes.
5. The method for detecting the output of an electric cylinder by a pin-type force sensor according to claim 1, characterized in that: The outer side of the electric cylinder end joint U fork (5) below the bearing seat (4) is rotatably connected to a hand wheel (23); the inner side of the electric cylinder end joint U fork (5) is provided with a receiving groove (16), which is provided with two groups, and the inner side of the receiving groove (16) is rotatably connected to a positive and negative threaded screw (20); the outer side of the positive and negative threaded screw (20) is fixed with a first bevel gear (21); the inner side of the receiving groove (16) at the front end of the positive and negative threaded screw (20) is rotatably connected to a rotating shaft (24), and the outer side of the rotating shaft (24) is fixed with a second bevel gear (22); the second bevel gear (22) is meshingly connected with the first bevel gear (21); the inner side of the electric cylinder end joint U fork (5) above the accommodating groove (16) is provided with a positioning groove (19); the outer side of the positive and negative threaded screw (20) is sleeved with a threaded sleeve (17), and the threaded sleeve (17) moves inside the positioning groove (19) and is inserted into the inner side of the bearing seat (4).
6. The method for detecting the output of an electric cylinder by a pin-type force sensor according to claim 5, characterized in that: The positioning block (18) is configured to be L-shaped, and its width is the same as the width of the bearing seat (4).