Positioning mounting device for six-component force sensor testing

Abstract

The utility model discloses a positioning installation device for six-component force sensor test relates to sensor test technical field, including support platform, the top of support platform is equipped with two groups of connecting frame, the inner wall fixed limit rod of connecting frame, the outside of limit rod is connected with two groups of clamping block for clamping sensor. The utility model has the advantages that: when the driving block moves downward, will push the convex block and move, thereby drive the sliding rod to slide in the stand, make the support block support and position the sensor inner wall, prevent the deformation or displacement of sensor in the testing process because of stress, guarantee the accuracy of test result, through the clamping block can be to the outside of six-component force sensor clamping positioning, pull the guiding block and slide in the guide plate, adjust the interval of two groups of clamping block, make two groups of clamping block conveniently for the clamping positioning of different size six-component force sensor subsequently.

Description

Technical Field

[0001] This utility model relates to the field of sensor testing technology, and in particular to a positioning and mounting device for testing a six-component force sensor. Background Technology

[0002] The six-component force sensor is a high-precision industrial measuring device that can simultaneously detect force components in three directions and torque components in three-dimensional space, realizing the acquisition of six degrees of freedom mechanical parameters. Its core principle is based on the deformation of an elastic body and the conversion of electrical signals: when an external force or torque is applied to the sensor, the internal strain gauge generates a change in resistance due to deformation, or the piezoelectric element generates a charge signal. After being converted into voltage by a Wheatstone bridge, the six independent components are separated through amplification, filtering and digital processing.

[0003] When testing a six-component force sensor, a positioning and mounting device is required. Existing positioning and mounting devices typically use clamping blocks to hold and position the sensor from the outside. However, during testing, it is impossible to simultaneously clamp and position both the inner and outer sides of the sensor. Relying solely on the outer side, when the sensor is subjected to a large external force, its internal structure is prone to deformation due to the lack of effective support. This deformation alters the stress state of the strain gauges inside the sensor, leading to deviations in the output signal and inaccurate force data obtained from the test. This data fails to accurately reflect the mechanical conditions the sensor experiences in actual applications. Furthermore, due to the lack of internal wall positioning support, the sensor is prone to slight displacement or wobbling on the test bench. This displacement error accumulates in the final test results, reducing the accuracy and reliability of the test. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A positioning and mounting device for testing a six-component force sensor includes a support platform. Two sets of connecting frames are mounted on the top of the support platform. Limiting rods are fixed to the inner walls of the connecting frames. Two sets of clamping blocks for clamping the sensor are slidably connected to the outer sides of the limiting rods. A guide plate is fixed to the top of the connecting frames. A guide block for adjusting the clamping range is fixed to the top of the clamping blocks, and the outer side of the guide block is slidably connected to the inner wall of the guide plate.

[0007] A placement plate is fixed to the top of the support platform, and a column is fixed to the top of the placement plate. A support component for positioning and supporting the inner wall of the sensor is provided inside the column.

[0008] The support assembly includes multiple sets of sliding rods that slide on the inner wall of the column. One end of each sliding rod is fixed with a support block. A guide strip for moving the support block horizontally is fixed to the outer side of each sliding rod, and the outer side of the guide strip is slidably connected to the inner wall of the column. A drive block for pushing the sliding rods to move is slidably connected to the inner wall of the column.

[0009] As a preferred embodiment of the positioning and installation device for testing the six-component force sensor described in this utility model, the top of the guide block is fixed with a connecting block, the inner wall of the connecting block is threaded with a limiting bolt for limiting the clamping block, and the inner cavity of the guide plate is provided with multiple sets of threaded holes that cooperate with the limiting bolt.

[0010] As a preferred embodiment of the positioning and installation device for testing the six-component force sensor described in this utility model, an anti-slip pad is provided on one side of the clamping block, and the anti-slip pad is made of silicone.

[0011] As a preferred embodiment of the positioning and installation device for testing the six-component force sensor described in this utility model, the top of the support platform is fixed with two sets of fixed seats, the inner wall of the fixed seats is threaded with a threaded rod that drives the connecting frame to move, and one end of the threaded rod is rotatably connected to one side of the connecting frame, and one end of the threaded rod is fixed with a rotating wheel.

[0012] As a preferred embodiment of the positioning and installation device for testing the six-component force sensor described in this utility model, two sets of guide rods are fixed on one side of the connecting frame, and the outer side of the guide rods is slidably connected to the inner wall of the fixed seat.

[0013] As a preferred embodiment of the positioning and installation device for testing the six-component force sensor described in this utility model, a protrusion is fixed to the other end of the slide rod, a spring is provided on the outer side of the slide rod, and the spring is fixed between the protrusion and the inner wall of the column.

[0014] As a preferred embodiment of the positioning and installation device for testing the six-component force sensor described in this utility model, the inner wall of the column is threaded with a screw rod, and the bottom of the screw rod is rotatably connected to the top of the drive block, and a fixing block is fixed to the top of the screw rod.

[0015] The beneficial effects of this utility model are as follows: when the driving block moves downward, it pushes the protrusion to move, thereby causing the slide rod to slide inside the column, so that the support block supports and positions the inner wall of the sensor, preventing the sensor from deforming or shifting due to force during the test, and ensuring the accuracy of the test results. The clamping block can clamp and position the outer side of the six-component force sensor, and the guide block can be pulled to slide inside the guide plate to adjust the distance between the two sets of clamping blocks, which facilitates the subsequent clamping and positioning of six-component force sensors of different sizes by the two sets of clamping blocks. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is an overall structural diagram of the positioning and mounting device for testing a six-component force sensor.

[0018] Figure 2 This is a schematic diagram of the support base in the positioning and mounting device for testing a six-component force sensor.

[0019] Figure 3 This is a schematic diagram of the connecting frame in the positioning and mounting device for testing a six-component force sensor.

[0020] Figure 4 This is a schematic diagram of the column structure in the positioning and installation device for testing a six-component force sensor.

[0021] The following are the labels in the diagram: 1. Support platform; 2. Connecting frame; 3. Limiting rod; 4. Clamping block; 5. Guide block; 6. Guide plate; 7. Placement tray; 8. Column; 9. Support assembly; 91. Slide rod; 92. Support block; 93. Drive block; 10. Connecting block; 11. Limiting bolt; 12. Anti-slip pad; 13. Fixed seat; 14. Threaded rod; 15. Rotary wheel; 16. Guide rod; 17. Protrusion; 18. Spring; 19. Screw; 20. Fixed block. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1:

[0026] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a positioning and installation device for testing a six-component force sensor, including a support platform 1. Two sets of connecting frames 2 are installed on the top of the support platform 1. Limiting rods 3 are fixed to the inner wall of the connecting frames 2. Two sets of clamping blocks 4 for clamping the sensor are slidably connected to the outer side of the limiting rods 3. A guide plate 6 is fixed to the top of the connecting frames 2. A guide block 5 for adjusting the clamping range is fixed to the top of the clamping blocks 4, and the outer side of the guide block 5 is slidably connected to the inner wall of the guide plate 6.

[0027] Two sets of connecting frames 2 are symmetrically arranged. The clamping blocks 4 can clamp and position the outer side of the six-component force sensor. Pulling the guide block 5 to slide inside the guide plate 6 can adjust the distance between the two sets of clamping blocks 4, making it convenient for the two sets of clamping blocks 4 to clamp and position six-component force sensors of different sizes in the future.

[0028] A placement plate 7 is fixed to the top of the support platform 1, and a column 8 is fixed to the top of the placement plate 7. A support component 9 for positioning and supporting the inner wall of the sensor is provided inside the column 8.

[0029] The placement tray 7 is used to place the six-component force sensor, giving the sensor a stable placement plane. The support component 9 is used to position and support the inner wall of the sensor, preventing the sensor from deforming or shifting due to force during the test, and ensuring the accuracy of the test results.

[0030] The support assembly 9 includes multiple sets of slide rods 91 that slide on the inner wall of the column 8. A support block 92 is fixed to one end of each slide rod 91. A guide strip for moving the support block 92 horizontally is fixed to the outer side of the slide rod 91. The outer side of the guide strip is slidably connected to the inner wall of the column 8. A drive block 93 for pushing the slide rod 91 to move is slidably connected to the inner wall of the column 8.

[0031] The inclined surface of the drive block 93 has a certain angle. Pushing the drive block 93 downward will push the slide rod 91 to slide inside the column 8, so that the support block 92 supports the inner wall of the six-component force sensor. Furthermore, the sliding of the slide rod 91 can enable the support block 92 to support and position six-component force sensors with different inner diameters.

[0032] Example 2:

[0033] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, a connecting block 10 is fixed to the top of the guide block 5, and a limiting bolt 11 for limiting the clamping block 4 is threadedly connected to the inner wall of the connecting block 10. The inner cavity of the guide plate 6 has multiple sets of threaded holes that cooperate with the limiting bolt 11.

[0035] After the spacing between the two sets of clamping blocks 4 is adjusted, the guide plate 6 can be fixed by the limit bolts 11 and threaded holes to improve the stability of the clamping blocks 4.

[0036] Specifically, an anti-slip pad 12 is provided on one side of the clamping block 4. The anti-slip pad 12 is made of silicone.

[0037] The anti-slip pad 12 increases the friction between the clamping block 4 and the sensor, preventing the sensor from sliding during clamping. At the same time, the silicone material has a certain degree of flexibility, which can prevent the clamping block 4 from damaging the sensor surface.

[0038] Specifically, two sets of fixed seats 13 are fixed on the top of the support platform 1. The inner wall of the fixed seat 13 is threadedly connected to a threaded rod 14 that drives the connecting frame 2 to move. One end of the threaded rod 14 is rotatably connected to one side of the connecting frame 2. A rotating wheel 15 is fixed to one end of the threaded rod 14.

[0039] Rotating the wheel 15 drives the threaded rod 14 to rotate, causing the threaded rod 14 to push the connecting frame 2 to move, thereby causing the clamping block 4 to contact the outside of the sensor for clamping and positioning.

[0040] Specifically, two sets of guide rods 16 are fixed on one side of the connecting frame 2, and the outer side of the guide rods 16 is slidably connected to the inner wall of the fixed seat 13.

[0041] When the connecting frame 2 moves, it causes the guide rod 16 to slide inside the fixed seat 13, so that the connecting frame 2 moves horizontally.

[0042] Example 3:

[0043] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0044] Specifically, a protrusion 17 is fixed to the other end of the slide rod 91, and a spring 18 is provided on the outside of the slide rod 91, with the spring 18 fixed between the protrusion 17 and the inner wall of the column 8.

[0045] When the drive block 93 moves downward, it pushes the protrusion 17 to move, thereby causing the slide rod 91 to slide inside the column 8, so that the support block 92 supports and positions the inner wall of the sensor. At this time, the movement of the protrusion 17 will cause the spring 18 to contract. When the sensor needs to be removed, the drive block 93 is pulled upward. At this time, the elastic force of the spring 18 pushes the protrusion 17 to reset, so that the protrusion 17 contacts the bottom of the drive block 93, causing the slide rod 91 to slide into the column 8, so that the support block 92 is disengaged from the inner wall of the sensor. A silicone pad is provided on the outside of the support block 92.

[0046] Specifically, the inner wall of the column 8 is threaded with a screw 19, and the bottom of the screw 19 is rotatably connected to the top of the drive block 93. A fixing block 20 is fixed to the top of the screw 19.

[0047] Rotating the fixed block 20 can drive the screw 19 to rotate, causing the screw 19 to move up and down inside the column 8, thereby driving the drive block 93 to move up and down.

[0048] In use, first, place the six-component force sensor on the outside of the column 8. Rotating the fixing block 20 will drive the screw 19 to rotate, causing the screw 19 to move the drive block 93 downward. When the drive block 93 moves downward, it will push the protrusion 17 to move, thereby causing the slide rod 91 to slide inside the column 8, so that the support block 92 supports and positions the inner wall of the sensor. At this time, the movement of the protrusion 17 will cause the spring 18 to contract. The clamping block 4 can clamp and position the outside of the six-component force sensor, pulling the guide block 5 inside the guide plate 6. The sliding mechanism adjusts the distance between the two sets of clamping blocks 4, facilitating the clamping and positioning of six-component force sensors of different sizes. Rotating the rotating wheel 15 drives the threaded rod 14 to rotate, causing the threaded rod 14 to push the connecting frame 2 to move, thereby causing the clamping blocks 4 to contact the outside of the sensor for clamping and positioning. In conjunction with the support block 92, it improves the stability of the support and positioning of the six-component force sensor. When the connecting frame 2 moves, it drives the guide rod 16 to slide inside the fixed seat 13, causing the connecting frame 2 to move horizontally.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning and mounting device for testing a six-component force sensor, comprising a support platform (1), characterized in that: The top of the support platform (1) is equipped with two sets of connecting frames (2). The inner wall of the connecting frame (2) is fixed with a limit rod (3). The outer side of the limit rod (3) is slidably connected with two sets of clamping blocks (4) for clamping the sensor. The top of the connecting frame (2) is fixed with a guide plate (6). The top of the clamping block (4) is fixed with a guide block (5) for adjusting the clamping range. The outer side of the guide block (5) is slidably connected with the inner wall of the guide plate (6). The top of the support platform (1) is fixed with a placement plate (7), the top of the placement plate (7) is fixed with a column (8), and the inside of the column (8) is provided with a support component (9) for positioning and supporting the inner wall of the sensor. The support assembly (9) includes multiple sets of slide rods (91) that slide on the inner wall of the column (8). One end of each slide rod (91) is fixed with a support block (92). The outer side of each slide rod (91) is fixed with a guide strip for moving the support block (92) horizontally. The outer side of the guide strip is slidably connected to the inner wall of the column (8). The inner wall of the column (8) is slidably connected with a drive block (93) that pushes the slide rod (91) to move.

2. The positioning and mounting device for testing a six-component force sensor as described in claim 1, characterized in that: The top of the guide block (5) is fixed with a connecting block (10), and the inner wall of the connecting block (10) is threaded with a limiting bolt (11) for limiting the clamping block (4). The inner cavity of the guide plate (6) has multiple sets of threaded holes that cooperate with the limiting bolt (11).

3. The positioning and mounting device for testing a six-component force sensor as described in claim 1, characterized in that: One side of the clamping block (4) is provided with an anti-slip pad (12), which is made of silicone.

4. The positioning and mounting device for testing a six-component force sensor as described in claim 1, characterized in that: The top of the support platform (1) is fixed with two sets of fixed seats (13). The inner wall of the fixed seat (13) is threadedly connected with a threaded rod (14) that drives the connecting frame (2) to move. One end of the threaded rod (14) is rotatably connected to one side of the connecting frame (2). One end of the threaded rod (14) is fixed with a rotating wheel (15).

5. The positioning and mounting device for testing a six-component force sensor as described in claim 4, characterized in that: Two sets of guide rods (16) are fixed on one side of the connecting frame (2), and the outer side of the guide rods (16) is slidably connected to the inner wall of the fixed seat (13).

6. The positioning and mounting device for testing a six-component force sensor as described in claim 1, characterized in that: The other end of the slide rod (91) is fixed with a protrusion (17), and a spring (18) is provided on the outside of the slide rod (91), and the spring (18) is fixed between the protrusion (17) and the inner wall of the column (8).

7. The positioning and mounting device for testing a six-component force sensor as described in claim 1, characterized in that: The inner wall of the column (8) is threaded with a screw (19), and the bottom of the screw (19) is rotatably connected to the top of the drive block (93). The top of the screw (19) is fixed with a fixing block (20).

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