Test board device for sensor calibration

Abstract

The utility model relates to the technical field of sensor calibration, and discloses a testboard device for sensor calibration, which solves the problem that a sensor cannot be calibrated at different positions at present, and comprises a workbench, an adjusting mechanism is arranged at the top of the workbench, a supporting mechanism is arranged on the adjusting mechanism, and the supporting mechanism is arranged on the workbench. The adjusting mechanism comprises a supporting shaft rotationally connected to the top of the workbench, a containing table is fixedly connected to the top end of the supporting shaft, a bottom cylinder is fixedly connected to the bottom of the containing table and fixedly connected to the outer side of the supporting shaft in a sleeving mode, two L-shaped round rods are symmetrically and fixedly connected between the bottom of the bottom cylinder and the supporting shaft, and a driving ring is movably connected between the two L-shaped round rods in a sleeving mode. Two connecting columns are symmetrically and fixedly connected to the bottom of the driving ring, and a bottom ring is fixedly connected between the bottom ends of the two connecting columns; according to the utility model, the supporting shaft and the fixing ring can be fixed, and the fixation of the sensor after rotation can be realized, so that the position of the sensor can be conveniently adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of sensor calibration technology, specifically a test bench device for sensor calibration. Background Technology

[0002] Test benches for sensor calibration are typically designed to ensure the accuracy and reliability of sensors. These test benches are mainly used to calibrate and test various types of sensors to ensure their accuracy and stability in practical applications. By simulating different working environments and conditions, the test bench can perform comprehensive performance evaluations of sensors, including indicators such as sensitivity, response time, and linearity.

[0003] In existing technologies, the sensor to be calibrated is typically mounted on a fixture for fixation and connected to the test system via an electrical interface. However, once fixed, the sensor's position remains unchanged, making it impossible to calibrate the sensor at different locations. Consequently, it is difficult to ensure that the sensor can accurately measure in various practical application scenarios. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a test bench device for sensor calibration, which effectively solves the problem that it is currently impossible to calibrate sensors at different locations.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a test bench device for sensor calibration, comprising a workbench, wherein an adjustment mechanism is provided on the top of the workbench, and a support mechanism is provided on the adjustment mechanism;

[0006] The adjustment mechanism includes a support shaft rotatably connected to the top of the worktable. A placement platform is fixedly connected to the top of the support shaft, and a bottom cylinder is fixedly connected to the bottom of the placement platform. The bottom cylinder is fixedly sleeved on the outside of the support shaft. Two L-shaped round rods are symmetrically fixedly connected between the bottom of the bottom cylinder and the support shaft. A drive ring is movably sleeved between the two L-shaped round rods. Two connecting posts are symmetrically fixedly connected to the bottom of the drive ring. A bottom ring is fixedly connected between the bottom ends of the two connecting posts. Two insert rods are symmetrically fixedly connected to the top of the bottom ring. A fixing ring is provided on the outside of the support shaft. The fixing ring is located between the drive ring and the bottom ring. Both connecting posts pass through the fixing ring. Multiple insertion holes are provided at equal angles on the bottom of the fixing ring. The two insert rods are inserted into two corresponding insertion holes respectively.

[0007] Preferably, two columns are symmetrically fixedly connected between the bottom of the fixed ring and the top of the worktable. A limit ring is movably sleeved between the two columns. Two return springs are symmetrically fixedly connected between the limit ring and the fixed ring. The two return springs are respectively sleeved on the outside of the two columns. The limit ring is located below the bottom ring.

[0008] Preferably, the bottom of the bottom ring is fixedly connected to multiple bottom rods at equal angles, and each bottom rod has a ball bearing located at the top of the limiting ring at its bottom end.

[0009] Preferably, a guide rod is fixedly connected between the outer side of the bottom cylinder and the bottom of the placement platform, a guide plate is movably sleeved on the outer side of the guide rod, and a U-shaped push rod is fixedly connected to the side of the guide plate away from the bottom cylinder.

[0010] Preferably, a movable rod is rotatably connected to the bottom of the guide plate, and the bottom end of the movable rod is rotatably connected to the top of the drive ring.

[0011] Preferably, the support mechanism includes an annular guide rail fixed to the outside of the fixed ring, and multiple guide blocks are slidably connected at equal angles to the outside of the annular guide rail. Each guide block has a support column fixedly connected between its top and the bottom of the placement platform.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model facilitates the rotation of a sensor fixed on the top of the placement platform by the cooperation between the placement platform and the support shaft. The cooperation between the fixing ring, column, limiting ring, return spring, ball, bottom rod and bottom ring facilitates the insertion of two insertion rods into two corresponding insertion holes, thereby fixing the support shaft and the fixing ring. This enables the sensor to be fixed after rotation, thus facilitating the adjustment of the sensor's position.

[0014] 2. This new type of platform can support and limit the placement platform through the cooperation between the ring guide rail, guide block and support column, thereby ensuring the stability of the placement platform when it rotates. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the test bench device for sensor calibration according to the present invention;

[0018] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the drive ring structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the fixing ring structure of this utility model;

[0021] Figure 5This is a schematic diagram of the bottom ring structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the support mechanism structure of this utility model.

[0023] In the diagram: 1. Workbench; 2. Adjustment mechanism; 201. Support shaft; 202. Drive ring; 203. Placement platform; 204. Fixed ring; 205. Limiting ring; 206. L-shaped round rod; 207. Bottom cylinder; 208. Guide rod; 209. Guide plate; 2010. U-shaped push rod; 2011. Movable rod; 2012. Return spring; 2013. Insertion hole; 2014. Connecting column; 2015. Bottom ring; 2016. Column; 2017. Bottom rod; 2018. Ball bearing; 2019. Insertion rod; 3. Support mechanism; 301. Circular guide rail; 302. Guide block; 303. Support column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example 1, by Figure 1 The present invention relates to a test bench device for sensor calibration, comprising a workbench 1, an adjustment mechanism 2 on the top of the workbench 1, and a support mechanism 3 on the adjustment mechanism 2.

[0026] Specifically, by Figure 2-5The adjustment mechanism 2 includes a support shaft 201 rotatably connected to the top of the worktable 1. A placement platform 203 is fixedly connected to the top of the support shaft 201. A bottom cylinder 207 is fixedly connected to the bottom of the placement platform 203. The bottom cylinder 207 is fixedly sleeved on the outside of the support shaft 201. Two L-shaped round rods 206 are symmetrically fixedly connected between the bottom of the bottom cylinder 207 and the support shaft 201. A drive ring 202 is movably sleeved between the two L-shaped round rods 206. Two... Two connecting posts 2014 are connected, with a bottom ring 2015 fixedly connected between their bottom ends. Two insert rods 2019 are symmetrically fixedly connected to the top of the bottom ring 2015. A fixing ring 204 is provided on the outer side of the support shaft 201, located between the drive ring 202 and the bottom ring 2015. Both connecting posts 2014 pass through the fixing ring 204. Multiple insertion holes 2013 are provided at equal angles at the bottom of the fixing ring 204, and the two insert rods 2019 are inserted into two corresponding insertion holes 2013 respectively. Within 013, two columns 2016 are symmetrically fixedly connected between the bottom of the fixed ring 204 and the top of the worktable 1. A limit ring 205 is movably sleeved between the two columns 2016. Two return springs 2012 are symmetrically fixedly connected between the limit ring 205 and the fixed ring 204. The two return springs 2012 are respectively sleeved on the outside of the two columns 2016. The limit ring 205 is located below the bottom ring 2015. Multiple bottom rods 201 are fixedly connected at equal angles to the bottom of the bottom ring 2015. 7. Each bottom rod 2017 has a ball bearing 2018 located at the top of the limiting ring 205 at its bottom end. A guide rod 208 is fixedly connected between the outer side of the bottom cylinder 207 and the bottom of the placement platform 203. A guide plate 209 is movably sleeved on the outer side of the guide rod 208. A U-shaped push rod 2010 is fixedly connected to the side of the guide plate 209 away from the bottom cylinder 207. A movable rod 2011 is rotatably connected to the bottom of the guide plate 209. The bottom end of the movable rod 2011 is rotatably connected to the top of the drive ring 202.

[0027] In operation, first push the U-shaped push rod 2010, causing the guide plate 209 to slide along the guide rod 208 and approach the bottom cylinder 207. The movable rod 2011 then drives the drive ring 202 to slide downwards along the two L-shaped round rods 206. Next, the two connecting pillars 2014 drive the bottom ring 2015 to move downwards. Simultaneously, both insertion rods 2019 descend, and the bottom rods 2017 and ball bearings 2018 drive the limiting ring 205 to slide downwards along the two uprights 2016. At this point, both return springs 2012 are stretched until the two insertion rods 2019 exit from their corresponding insertion holes 2013. The internal disengagement mechanism releases the support shaft 201 from the fixing ring 204. Then, the placement platform 203 is rotated, causing the support shaft 201 and the sensor fixed to the top of the placement platform 203 to rotate. When the rotation is complete, the U-shaped push rod 2010 is released. At this time, the limiting ring 205 moves upward along the two columns 2016 under the action of the two return springs 2012, and pushes the bottom ring 2015 upward, so that the two insertion rods 2019 are inserted into the two corresponding insertion holes 2013 respectively, fixing the support shaft 201 to the fixing ring 204, realizing the fixation of the sensor after rotation. Finally, the position of the sensor is adjusted.

[0028] Specifically, by Figure 6 As shown, the support mechanism 3 includes an annular guide rail 301 fixed to the outside of the fixed ring 204. Multiple guide blocks 302 are slidably connected at equal angles to the outside of the annular guide rail 301. A support column 303 is fixedly connected between the top of each guide block 302 and the bottom of the placement platform 203.

[0029] In use, when the placement platform 203 rotates, each support column 303 drives each guide block 302 to slide on the outside of the annular guide rail 301, supporting and limiting the placement platform 203 to prevent it from shaking during rotation, thereby ensuring the stability of the placement platform 203 during rotation.

Claims

1. A test bench apparatus for sensor calibration, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with an adjustment mechanism (2), and the adjustment mechanism (2) is provided with a support mechanism (3); The adjustment mechanism (2) includes a support shaft (201) rotatably connected to the top of the worktable (1). A placement platform (203) is fixedly connected to the top of the support shaft (201). A bottom cylinder (207) is fixedly connected to the bottom of the placement platform (203). The bottom cylinder (207) is fixedly sleeved on the outside of the support shaft (201). Two L-shaped round rods (206) are symmetrically fixedly connected between the bottom of the bottom cylinder (207) and the support shaft (201). A drive ring (202) is movably sleeved between the two L-shaped round rods (206). Two connecting columns are symmetrically fixedly connected to the bottom of the drive ring (202). A bottom ring (2015) is fixedly connected between the bottom ends of the two connecting columns (2014). Two insert rods (2019) are symmetrically fixedly connected to the top of the bottom ring (2015). A fixing ring (204) is provided on the outside of the support shaft (201). The fixing ring (204) is located between the drive ring (202) and the bottom ring (2015). Both connecting columns (2014) pass through the fixing ring (204). Multiple insertion holes (2013) are provided at equal angles at the bottom of the fixing ring (204). The two insert rods (2019) are inserted into two corresponding insertion holes (2013) respectively.

2. A test rig apparatus for sensor calibration according to claim 1, characterised in that: Two columns (2016) are symmetrically fixedly connected between the bottom of the fixed ring (204) and the top of the worktable (1). A limiting ring (205) is movably sleeved between the two columns (2016). Two return springs (2012) are symmetrically fixedly connected between the limiting ring (205) and the fixed ring (204). The two return springs (2012) are respectively sleeved on the outside of the two columns (2016). The limiting ring (205) is located below the bottom ring (2015).

3. A test bed apparatus for sensor calibration according to claim 1, characterized in that: The bottom ring (2015) is fixedly connected to a plurality of bottom rods (2017) at equal angles, and each bottom rod (2017) has a ball (2018) at the bottom end located on the top of the limiting ring (205).

4. A test bed apparatus for sensor calibration according to claim 1, characterized in that: A guide rod (208) is fixedly connected between the outer side of the bottom cylinder (207) and the bottom of the placement platform (203). A guide plate (209) is movably sleeved on the outer side of the guide rod (208). A U-shaped push rod (2010) is fixedly connected to the side of the guide plate (209) away from the bottom cylinder (207).

5. A test rig apparatus for sensor calibration according to claim 4, characterised in that: The bottom of the guide plate (209) is rotatably connected to a movable rod (2011), and the bottom end of the movable rod (2011) is rotatably connected to the top of the drive ring (202).

6. A test bed apparatus for sensor calibration according to claim 1, characterized in that: The support mechanism (3) includes an annular guide rail (301) fixed to the outside of the fixed ring (204). Multiple guide blocks (302) are slidably connected at equal angles to the outside of the annular guide rail (301). A support column (303) is fixedly connected between the top of each guide block (302) and the bottom of the placement platform (203).

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