Positioning equipment for precise measurement of expansion cylinder
By designing the expansion cylinder positioning equipment of the base and adjustment components, the measurement deviation problem caused by the non-vertical expansion cylinder body is solved, and high-precision linear displacement measurement is achieved.
Patent Information
- Application Number
- CN202422813986.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-11-19
AI Technical Summary
When the expansion cylinder body and piston are not perpendicular to the ground, measuring the linear displacement of the piston with a photoelectric displacement sensor will cause deviations, affecting the measurement accuracy.
A positioning device including a base, support frame, fixing components and adjustment components is designed. Through components such as hydraulic rods, hard plates, curved rubber plates, steel balls and electric telescopic rods, ensure that the expansion cylinder body is perpendicular to the ground and reduce measurement deviations.
The accuracy of precision measurement of expansion cylinder is achieved, ensuring the accurate beam path when the photoelectric displacement sensor is measured, and improving the accuracy of the measurement results.
Smart Images
Figure CN223166100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positioning equipment, in particular to a positioning equipment for precise measurement of an expansion cylinder. Background Technique
[0002] An expansion cylinder is a mechanical device driven by compressed air. It realizes linear motion through the movement of a piston inside the cylinder. The positioning equipment for precise measurement of an expansion cylinder generally refers to the equipment used to accurately measure and control the position of the expansion cylinder, for measuring the position of the piston, measuring the linear displacement of the piston due to dimensional changes caused by thermal expansion or other factors. The prior art measures the real-time change of the linear displacement of the piston through a photoelectric displacement sensor.
[0003] When measuring the expansion cylinder, if the body and the piston of the cylinder do not keep perpendicular to the ground, then when using a photoelectric displacement sensor to measure the linear displacement of the piston, certain deviations will occur, affecting the measurement accuracy. This is because the working principle of the photoelectric displacement sensor depends on the straight-line propagation and reflection of light beams. If the position of the sensor or the object to be measured deviates from the expected vertical state, it will cause the path of the light beam to shift, thus affecting the accuracy of the measurement result. Therefore, a positioning equipment for precise measurement of an expansion cylinder is proposed to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a positioning equipment for precise measurement of an expansion cylinder to solve the problem that if the body and the piston of the cylinder do not keep perpendicular to the ground, then when using a photoelectric displacement sensor to measure the linear displacement of the piston, certain deviations will occur, affecting the measurement accuracy.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A positioning device for precise measurement of an expansion cylinder, comprising a base and a support frame. The top of the base is fixedly connected to the support frame by bolts. The top of the support frame is fixedly connected to a fixing component. The top of the fixing component is fixedly connected to an upper mounting plate. One side of the upper end of the upper mounting plate is fixedly connected to a photoelectric displacement sensor. The inner side of the fixing component is in contact with the outer side of the calibration component. The fixing component includes a casing. An activity channel is opened inside the casing. One side of the activity channel opened in the casing is fixedly connected to a hydraulic rod. One side of the hydraulic rod is fixedly connected to a hard plate. One side of the hard plate is fixedly connected to an arc-shaped rubber plate. A spherical groove is opened at one end of the casing. A steel ball is installed inside the spherical groove opened in the casing. The calibration component includes a movable ball. An installation groove is opened inside the movable ball. A limiting sliding groove is opened inside the movable ball. An electric telescopic rod is fixedly connected to the inner side of the movable ball. One side of the electric telescopic rod is fixedly connected to a pressing plate. A clamping plate is slidably connected inside the limiting sliding groove opened in the movable ball. One side of the clamping plate is fixedly connected to a spring plate.
[0007] As a further optimized content of the present utility model, wherein: the number of the support frames is four, and the support frames are fixed at the four corners of the bottom end of the casing. There is a spacing between the casing and the base, and the top end of the casing is fixedly connected to the bottom end of the upper mounting plate.
[0008] As a further optimized content of the present utility model, wherein: the outer sides of the hard plate and the arc-shaped rubber plate are in contact with the inner side of the activity channel opened in the casing. One end of the arc-shaped rubber plate is an arc structure. The activity channel is communicated with the spherical groove, and the activity channel penetrates through one end of the casing. The casing is of a two-section structure.
[0009] As a further optimized content of the present utility model, wherein: the opened shape of the spherical groove is a sphere. A ball hole is opened inside the casing near the spherical groove. The number of the ball holes opened in the casing is the same as the number of the steel balls. The shape of the steel balls is a sphere. The outer sides of the steel balls are in contact with the outer side of the movable ball. The movable ball is embedded and installed inside the spherical groove.
[0010] As a further optimized content of the present utility model, wherein: the shape of the movable ball is a grooved sphere. The installation groove penetrates through the inner side of the movable ball. The opened shape of the installation groove is three-section rectangular bodies. The limiting sliding groove is communicated with the installation groove.
[0011] As a further optimized content of the present utility model, wherein: the opened shape of the limiting sliding groove is two-section rectangular bodies. The number of the limiting sliding grooves is two, and the limiting sliding grooves are opened inside the front end and the rear end of the inner side of the movable ball.
[0012] As a further optimized content of the present utility model, wherein: the shape of the clamping plate is a rectangular body, the clamping plate is fixedly connected to the top end and the bottom end of the spring plate, one end of the spring plate is embedded and installed inside the limiting sliding groove, the number of the electric telescopic rods and the pressing plates is two, and there is a spacing between the pressing plate and the spring plate.
[0013] Compared with the prior art, the beneficial effects of the present utility model are:
[0014] In the present utility model, through the arranged fixing component and calibration component, the device ensures that the body and the piston of the expansion cylinder are relatively perpendicular to the ground, effectively reducing the measurement deviation caused by the non-perpendicularity of the cylinder body and the piston. Through the coordinated work of components such as the spring plate, the clamping plate, and the limiting sliding groove, the vertical alignment of the cylinder with the ground is realized, thereby ensuring the accurate beam path of the photoelectric displacement sensor when measuring the linear displacement of the piston, and avoiding the measurement error caused by the deviation of the beam path. This precise fixing and measuring method makes the precise measurement of the expansion cylinder more reliable, improves the accuracy of the measurement result, and is particularly important for application scenarios that require high-precision positioning. Description of the Drawings
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the housing structure of the present utility model;
[0017] Figure 3 is a schematic diagram of the hydraulic rod structure of the present utility model;
[0018] Figure 4 is the present utility model Figure 3 schematic diagram of the structure at location A;
[0019] Figure 5 is a schematic diagram of the movable ball structure of the present utility model;
[0020] Figure 6 is a schematic diagram of the clamping plate structure of the present utility model.
[0021] In the figure: 1, base; 2, support frame;
[0022] 3, fixing component; 31, housing; 32, movable track; 33, hydraulic rod; 34, hard plate; 35, arc-shaped rubber plate; 36, spherical groove; 37, steel ball;
[0023] 4, calibration component; 41, movable ball; 42, installation groove; 43, limiting sliding groove; 44, electric telescopic rod; 45, pressing plate; 46, spring plate; 47, clamping plate;
[0024] 5, photoelectric displacement sensor; 6, upper mounting plate. Detailed implementation mode
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0026] It should be noted that the terms used herein are only for describing the specific implementation mode and are not intended to limit the exemplary implementation mode according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.
[0027] Please refer to Figure 1-6 , the present invention provides a technical solution:
[0028] A positioning device for precise measurement of an expansion cylinder, including a base 1 and a support frame 2. The top of the base 1 is fixedly connected to the support frame 2 by bolts. The top of the support frame 2 is fixedly connected to a fixing component 3. The top of the fixing component 3 is fixedly connected to an upper mounting plate 6. One side of the upper end of the upper mounting plate 6 is fixedly connected to an optoelectronic displacement sensor 5. The inner side of the fixing component 3 is in contact with the outer side of the calibration component 4. The fixing component 3 includes a housing 31. An activity channel 32 is opened inside the housing 31. One side of the activity channel 32 opened in the housing 31 is fixedly connected to a hydraulic rod 33. One side of the hydraulic rod 33 is fixedly connected to a hard plate 34. One side of the hard plate 34 is fixedly connected to an arc-shaped rubber plate 35. A spherical groove 36 is opened at one end of the housing 31. A steel ball 37 is installed inside the spherical groove 36 opened in the housing 31. The calibration component 4 includes a movable ball 41. An installation groove 42 is opened inside the movable ball 41. A limiting chute 43 is opened inside the movable ball 41. An electric telescopic rod 44 is fixedly connected to the inner side of the movable ball 41. One side of the electric telescopic rod 44 is fixedly connected to a pressing plate 45. A clamping plate 47 is slidably connected inside the limiting chute 43 opened in the movable ball 41. One side of the clamping plate 47 is fixedly connected to a spring plate 46.
[0029] As a further implementation of this solution, the number of the support frames 2 is four. The support frames 2 are fixed at the four corners of the bottom end of the housing 31. There is a spacing between the housing 31 and the base 1. The top of the housing 31 is fixedly connected to the bottom end of the upper mounting plate 6, which is convenient for installing the expansion cylinder inside the movable ball 41 and at the same time convenient for the installed expansion cylinder to swing in the direction of the ground attraction force;
[0030] As a further implementation of this solution, the outer sides of the hard board 34 and the arc-shaped rubber board 35 are attached to the inner side of the movable channel 32 opened in the casing 31. One end of the arc-shaped rubber board 35 has an arc structure. The movable channel 32 communicates with the spherical groove 36. One end of the movable channel 32 penetrates through the casing 31. The casing 31 is of a two-section structure. The arc structure of the arc-shaped rubber board 35 facilitates clamping with the movable ball 41. The arc-shaped rubber board 35 can increase the friction with the movable ball 41 and at the same time prevent damage to the surface of the movable ball 41. The casing 31 is of a two-section structure. This segmented design can facilitate assembly and maintenance, and may also help to adjust or replace components;
[0031] As a further implementation of this solution, the opening shape of the spherical groove 36 is spherical. A ball hole is opened on the inner side of the casing 31 close to the spherical groove 36. The number of ball holes opened in the casing 31 is the same as the number of steel balls 37. The shape of the steel balls 37 is spherical. The outer sides of the steel balls 37 are attached to the outer side of the movable ball 41. The movable ball 41 is embedded and installed inside the spherical groove 36, which can reduce the friction when the movable ball 41 moves;
[0032] As a further implementation of this solution, the shape of the movable ball 41 is a grooved sphere. The installation groove 42 penetrates through the inner side of the movable ball 41. The opening shape of the installation groove 42 is a three-section rectangular body. The limit sliding groove 43 communicates with the installation groove 42. The opening shape of the limit sliding groove 43 is a rectangular body at both ends. The number of limit sliding grooves 43 is two. The limit sliding grooves 43 are opened on the inner side of the front end and the inner side of the rear end of the movable ball 41. The shape of the clamping plate 47 is a rectangular body. The clamping plate 47 is fixedly connected to the top and bottom of the spring plate 46. One end of the spring plate 46 is embedded and installed inside the limit sliding groove 43. The number of the electric telescopic rods 44 and the pressing plates 45 is two. There is a distance between the pressing plate 45 and the spring plate 46, which can fix expansion cylinders of different sizes. By pushing the two electric telescopic rods 44 and the pressing plates 45, the expansion cylinder is located at the middle end of the movable ball 41. The spring plate 46 can increase the contact area with the expansion cylinder and prevent damage to the body of the expansion cylinder when fixing the expansion cylinder.
[0033] Workflow: When fixing the expansion cylinder, ensure that the body and piston of the expansion cylinder are relatively perpendicular to the ground, and place the expansion cylinder inside the mounting groove 42 from bottom to top. During the placement process of the expansion cylinder, it will contact the spring plate 46, causing the spring plate 46 to deform. The spring plate 46 drives the two clamping plates 47 to slide into the internal limit chute 43. The settings of the clamping plate 47 and the limit chute 43 can prevent the spring plate 46 from detaching from the inside of the mounting groove 42. The setting of the spring plate 46 can increase the contact area with the expansion cylinder. When the top of the expansion cylinder body is flush with the top of the movable ball 41, start the two electric telescopic rods 44 to push the pressing plate 45 to move. The pressing plate 45 presses on the spring plate 46 to fix the expansion cylinder through the spring plate 46. After the fixation is completed, at this time, under the action of the weight of the expansion cylinder itself, the expansion cylinder will drive the movable ball 41 to move inside the spherical groove 36. The movable ball 41 drives the steel ball 37 to roll. The steel ball 37 can reduce the friction generated when the movable ball 41 rotates. Since the weight of the expansion cylinder body below the movable ball 41 is greater than the weight above the movable ball 41, at this time, the body of the expansion cylinder automatically faces the ground, making the body and piston of the expansion cylinder relatively perpendicular to the ground. When the body of the expansion cylinder stops moving, start the two hydraulic rods 33 to push the hard plate 34 and the arc-shaped rubber plate 35 to move inside the movable track 32. When the arc-shaped rubber plate 35 is closely attached to the outside of the movable ball 41, the movable ball 41 can be fixed at this time. Then, detect the linear displacement of the piston of the expansion cylinder through the photoelectric displacement sensor 5. The device can ensure that the body and piston of the expansion cylinder are aligned with the photoelectric displacement sensor 5, prevent the path of the light beam from shifting during detection, and ensure the accuracy of detection.
[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A positioning device for precise measurement of an expansion cylinder, comprising a base (1) and a support frame (2), characterized in that: The top of the base (1) is fixedly connected with a support frame (2) by bolts. The top of the support frame (2) is fixedly connected with a fixing component (3). The top of the fixing component (3) is fixedly connected with an upper shelf board (6). One side of the upper end of the upper shelf board (6) is fixedly connected with an optoelectronic displacement sensor (5). The inner side of the fixing component (3) is in contact with the outer side of the calibration component (4). The fixing component (3) includes a casing (31). An activity channel (32) is opened inside the casing (31). One side of the activity channel (32) opened in the casing (31) is fixedly connected with a hydraulic rod (33). One side of the hydraulic rod (33) is fixedly connected with a hard board (34). One side of the hard board (34) is fixedly connected with an arc-shaped rubber board (35). A spherical groove (36) is opened at one end of the casing (31). A steel ball (37) is installed inside the spherical groove (36) opened in the casing (31). The calibration component (4) includes a movable ball (41). An installation groove (42) is opened inside the movable ball (41). A limiting sliding groove (43) is opened inside the movable ball (41). An electric telescopic rod (44) is fixedly connected inside the movable ball (41). One side of the electric telescopic rod (44) is fixedly connected with a pressing board (45). A clamping board (47) is slidably connected inside the limiting sliding groove (43) opened in the movable ball (41). One side of the clamping board (47) is fixedly connected with a spring board (46).
2. The positioning device for precise measurement of an expansion cylinder according to claim 1, wherein: The number of the support frames (2) is four. The support frames (2) are fixed at the four corners of the bottom end of the casing (31). There is a spacing between the casing (31) and the base (1). The top end of the casing (31) is fixedly connected with the bottom end of the upper shelf board (6).
3. The positioning device for precise measurement of an expansion cylinder according to claim 1, characterized in that: The outer sides of the hard board (34) and the arc-shaped rubber board (35) are in contact with the inner side of the activity channel (32) opened in the casing (31). One end of the arc-shaped rubber board (35) is an arc structure. The activity channel (32) is communicated with the spherical groove (36). The activity channel (32) penetrates through one end of the casing (31). The casing (31) is of a two-section structure.
4. The positioning device for precise measurement of an expansion cylinder according to claim 1, characterized in that: The opened shape of the spherical groove (36) is spherical. A ball hole is opened inside the casing (31) near the spherical groove (36). The number of the ball holes opened in the casing (31) is the same as the number of the steel balls (37). The shape of the steel balls (37) is spherical. The outer sides of the steel balls (37) are in contact with the outer side of the movable ball (41). The movable ball (41) is embedded and installed inside the spherical groove (36).
5. The positioning device for precise measurement of an expansion cylinder according to claim 1, characterized in that: The shape of the movable ball (41) is a grooved sphere. The installation groove (42) penetrates through the inner side of the movable ball (41). The opened shape of the installation groove (42) is a three-section rectangular body. The limiting sliding groove (43) is communicated with the installation groove (42).
6. The positioning device for precise measurement of an expansion cylinder according to claim 1, characterized in that: The opened shape of the limiting sliding groove (43) is a two-end rectangular body. The number of the limiting sliding grooves (43) is two. The limiting sliding grooves (43) are opened inside the front end and the rear end of the inner side of the movable ball (41).
7. The positioning device for precise measurement of an expansion cylinder according to claim 1, characterized in that: The shape of the card board (47) is a rectangular body. The card board (47) is fixedly connected to the top end and the bottom end of the spring plate (46). One end of the spring plate (46) is embedded and installed inside the limit sliding groove (43). The number of the electric telescopic rods (44) and the extrusion plates (45) is two each. A spacing is provided between the extrusion plate (45) and the spring plate (46).