A chemical engineering automation instrument testing device convenient to adjust

Abstract

The utility model belongs to the field of instrument test, specifically disclose a kind of chemical automation instrument test device of easy adjustment, it include: base and the linear drive piece one and test box being set in the top of base, two movable seats are movably provided on the fixed seat by linear drive piece two, clamping mechanism is provided on the movable seat;The clamping mechanism includes movable plate movably arranged on movable seat, the front end of movable plate is movably provided with push plate by elastic part one, movable plate rear end the movable seat is movably provided with arc block;The utility model adjusts movable seat position preliminary adaptation instrument size when clamping first, after fixing movable seat, it is pushed movable plate by rotating arc block, improve the pushing force of push plate and guarantee clamping stability, when disassembling, it can be released by reversing arc block, when subsequent instrument replacement, only need to reverse arc block, without adjusting the position of movable seat, greatly shorten the adjustment time when instrument replacement.

Description

Technical Field

[0001] This utility model belongs to the field of instrument testing, specifically relating to a conveniently adjustable automated chemical testing instrument device. Background Technology

[0002] An automated instrument is an automated technology tool consisting of several automated components and having relatively complete functions. In the production process of automated instruments, it is often necessary to use testing equipment to perform functional verification, performance evaluation, calibration and fault diagnosis.

[0003] Chinese patent CN218724307U discloses a conveniently adjustable automated instrument testing device, relating to the field of automated instrument testing. The device includes a base with a rectangular slot on its surface. A threaded rod is rotatably connected to the inner wall of the slot, and a movable block is threadedly connected to the surface of the threaded rod. An electric telescopic rod is fixedly connected to the end of the movable rod, and a rectangular frame is fixedly connected to the end of the electric telescopic rod. A test box and a control box are mounted on the upper surface of the base. The rectangular frame has fixing components for securing automated instruments, enabling it to clamp and fix automated instruments of different sizes. Furthermore, by reversing the threaded rod, the two clamping plates can be moved away from each other, thereby releasing the automated instrument and facilitating its removal after testing.

[0004] The aforementioned patent achieves instrument clamping by adjusting the distance between the clamping plates using a threaded rod, and uses a buffer spring to buffer the clamping force.

[0005] However, in the aforementioned patent, the buffer spring uses its own reaction force to push the second moving block to move in the opposite direction when clamping, which can easily cause the second threaded rod to rotate backward, resulting in loosening of the clamp. To avoid this situation, it is necessary to reduce the pitch to achieve self-locking, or to perform secondary restriction after the second moving block has finished moving. However, reducing the pitch makes it difficult to adjust the rotation of the threaded rod, and the adjustment efficiency is not ideal. The secondary restriction structure has too many operation steps. When replacing a new instrument after the instrument test is completed, it is necessary to first release the secondary structure restriction and then rotate the threaded rod. After replacement, the operation is repeated, and the adjustment efficiency is not ideal. Utility Model Content

[0006] The purpose of this utility model is to provide a conveniently adjustable chemical automation instrument testing device. By setting up an arc-shaped block rotation structure, when in use, the clamping push plate is first adjusted to a position slightly larger than the instrument, without affecting the disassembly and assembly of the instrument. Then, the arc-shaped block is rotated to increase the pushing force of the clamping push plate. When replacing it later, only the arc-shaped block needs to be rotated forward and backward. The adjustment is convenient and quick, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A conveniently adjustable chemical automation instrument testing device includes: a base, a linear drive component one and a test box disposed on the top of the base, a fixed seat is movably disposed on the linear drive component one, and two movable seats are movably disposed on the fixed seat through the linear drive component two, and a clamping mechanism is disposed on the movable seats.

[0009] The clamping mechanism includes a movable plate movably mounted on a movable seat. A push plate is movably mounted at the front end of the movable plate via an elastic element. An arc-shaped block is movably mounted on the movable seat at the rear end of the movable plate, and a gripping frame is mounted on the arc-shaped block.

[0010] Preferably, the linear drive component is an electric guide rail.

[0011] Preferably, the second linear drive component includes a bidirectional lead screw movably disposed within a fixed seat, with both ends of the bidirectional lead screw threadedly connected to two movable seats respectively.

[0012] Preferably, a wing plate is provided on the movable seat on the side of the fixed seat, and a limit bolt is threaded on the wing plate.

[0013] Preferably, a telescopic column is provided between the push plate and the movable plate.

[0014] Preferably, both sides of the push plate are movably provided with arc-shaped side plates, and an elastic element is provided between the arc-shaped side plates and the movable plate. A stop rod is provided on the movable plate at the rear end of the arc-shaped side plates.

[0015] Preferably, the movable seat is provided with a sliding groove, and the movable plate is provided with a slider, which is slidably connected to the sliding groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention features a movable plate mounted on a movable base. The front end of the movable plate is connected to a push plate via an elastic element, and the rear end is fitted with an arc-shaped block and a gripping frame. During clamping, the position of the movable base is first adjusted to initially adapt to the instrument size. After fixing the movable base, the gripping frame is rotated to drive the arc-shaped block to push the movable plate, thereby increasing the pushing force of the push plate and ensuring clamping stability. During disassembly, the arc-shaped block is rotated in the opposite direction to reduce the pushing force and release the constraint. When replacing the instrument, only the arc-shaped block needs to be rotated forward and backward, without the need to adjust the position of the movable base, which greatly shortens the adjustment time when replacing the instrument and improves testing efficiency. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a schematic diagram of the clamping mechanism of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a top view of the fixing base of this utility model;

[0022] Figure 4 This is a partial structural diagram of the arc-shaped block of this utility model.

[0023] In the diagram: 1. Base; 2. Test box; 3. Linear drive component one; 4. Fixed seat; 5. Linear drive component two; 501. Two-way lead screw; 502. Wing plate; 503. Limit bolt; 6. Movable seat; 7. Clamping mechanism; 701. Push plate; 702. Elastic component one; 703. Movable plate; 7031. Slide groove; 7032. Slider; 704. Arc block; 705. Grip frame; 706. Arc side plate; 707. Stop rod; 708. Elastic component two; 709. Telescopic column. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] As attached Figure 1 To be continued Figure 4 As shown:

[0028] Example 1: This example provides a conveniently adjustable chemical automation instrument testing device, including: a base 1, a linear drive component 3 and a test box 2 disposed on the top of the base 1, a fixed seat 4 movably disposed on the linear drive component 3, two movable seats 6 movably disposed on the fixed seat 4 via a second linear drive component 5, and a clamping mechanism 7 disposed on the movable seats 6; the clamping mechanism 7 includes a movable plate 703 movably disposed on the movable seats 6, a push plate 701 movably disposed at the front end of the movable plate 703 via an elastic component 702, an arc-shaped block 704 movably disposed on the movable seat 6 at the rear end of the movable plate 703, and a gripping frame 705 disposed on the arc-shaped block 704.

[0029] Specifically, the linear drive component 3 is an electric guide rail, and the electric slide on the electric guide rail is connected to the fixed base 4 to drive the fixed base 4 to move linearly.

[0030] Specifically, the linear drive component 25 includes a bidirectional lead screw 501 movably disposed within the fixed base 4, with both ends of the bidirectional lead screw 501 threadedly connected to two movable seats 6 respectively.

[0031] Specifically, a wing plate 502 is provided on the movable seat 6 on the side of the fixed seat 4, and a limit bolt 503 is threaded on the wing plate 502.

[0032] Based on the dimensions of the chemical automation instrument to be tested (such as pressure transmitters, flow sensors, etc.), the distance between the two movable seats 6 is first adjusted by the linear drive component 2 5. Specifically, the operator rotates the knob to drive the bidirectional lead screw 501 to rotate. Since the threads at both ends of the bidirectional lead screw 501 turn in opposite directions, the two movable seats 6 will move relative to or away from each other along the lead screw axis until the distance between the clamping mechanisms 7 is adapted to the width of the instrument (slightly larger than the width of the instrument, so that the user can place the instrument in the gap between the two clamping mechanisms 7 or remove it at this time). After adjustment, the limit bolt 503 on the rotating wing plate 502 is rotated so that the end of the limit bolt 503 abuts against the side of the fixed seat 4, locking the position of the movable seat 6 and preventing the distance from shifting due to the reaction force of the elastic component 1 702 during the test.

[0033] The operator then places the instrument between the two push plates 701, with the movable base 6 supporting the instrument at the bottom. The operator holds the grip 705 and rotates it to both sides of the base 1, causing the arc-shaped block 704 to rotate synchronously. Because the distance from the rotation axis of the arc-shaped block 704 to the bottom boundary point is greater than the distance from the side boundary point (initially in contact with the movable plate 703), after the arc-shaped block 704 rotates 90°, the original bottom boundary point will contact the movable plate 703, thus increasing the distance between the rotation axis of the arc-shaped block 704 and the movable plate 703. This pushes the movable plate 703, along with the push plates 701, towards the instrument. Because the push plates 701 are very close to the instrument, the movable plate 703 will continue to move even after the push plates 701 have contacted the dial. The spring pushes the instrument, compressing the elastic element 702. The elastic element 702, a helical spring, accumulates elastic potential energy and transmits the reaction force to the push plate 701, ensuring clamping stability while preventing damage to the instrument surface. Then, the linear drive element 3 moves the instrument to the test chamber 2 for easy testing. The test chamber 2 integrates a test module corresponding to the instrument under test, used for functional verification and performance evaluation, such as simulating or injecting process variable signals (e.g., temperature, pressure, flow rate, current, voltage), real-time acquisition of instrument output signals and field process signals, calibration of sensors and transmitters for zero point, slope, and range, simulation of fault scenarios, and testing of alarm, interlock, and DCS / PLC responses. This is existing technology and will not be described further.

[0034] After the test is completed, the instrument is moved out of the test box 2 using the linear drive component 3. The operator then reverses the arc block 704 to release the pushing and limiting state of the arc block 704 on the movable plate 703. At this time, the push plate 701 returns to a state with a certain gap between it and the dial. The push plate 701 can also move to a certain extent through the elastic component 702, reducing the resistance of the device to the instrument and making it easy for personnel to remove the instrument for replacement. The instrument can be replaced by simply moving the arc block 704, without having to operate the limit bolt 503 and the double screw 501 multiple times.

[0035] Suitable for testing large quantities of instruments of the same type and specifications.

[0036] Specifically, a telescopic column 709 is provided between the push plate 701 and the movable plate 703.

[0037] The telescopic column 709 extends and retracts synchronously with the deformation of the elastic element 702, limiting the offset of the push plate 701 and ensuring that the clamping direction is always consistent.

[0038] Specifically, the movable seat 6 is provided with a sliding groove 7031, and the movable plate 703 is provided with a slider 7032, which is slidably connected to the sliding groove 7031.

[0039] When the movable plate 703 moves, it will drive the slider 7032 to slide synchronously in the slide groove 7031. The slider 7032 adopts a T-shaped setting to limit the position of the movable plate 703, so that it will only move in a straight line along the movable seat 6 to ensure stability.

[0040] Example 2: This example is basically the same as the previous example, except that arc-shaped side plates 706 are movably provided on both sides of the push plate 701, an elastic element 708 is provided between the arc-shaped side plate 706 and the movable plate 703, and a stop rod 707 is provided on the movable plate 703 at the rear end of the arc-shaped side plate 706.

[0041] As can be seen from the above, when the instrument to be tested is circular (such as a pipeline flow sensor) or has an elliptical cross section, the instrument is placed between the two push plates 701. During the process of pushing the movable plate 703, the movable plate 703 will drive the stop rod 707 to move together until the stop rod 707 contacts the arc-shaped side plate 706 and pushes the arc-shaped side plate 706 to rotate around the connection point until the arc-shaped side plate 706 is tightly attached to the side of the instrument, forming a three-point clamping structure of "push plate 701 front clamping + arc-shaped side plate 706 side auxiliary clamping". This avoids the circular instrument from rolling and shifting during the test, and improves the clamping stability. When the elastic element 1 702 pushes the movable plate 703 in the initial direction after the test, the stop rod 707 will disengage from the arc-shaped side plate 706. At this time, the elastic element 2 708 (using an elastic pull rope) will use its own elasticity to pull the arc-shaped side plate 706 in the initial direction and rotate it back to its original position, so as not to obstruct the instrument's removal path. This makes it convenient for the user to directly remove the instrument from the front and back of the device, making it convenient to use.

[0042] The linear drive component 3 uses a servo motor and a ball screw slide mounted on the base 1. The slide is fixedly connected to the fixed seat 4. The servo motor drives the screw to rotate, which in turn drives the slide and the fixed seat 4 to move horizontally.

[0043] The linear drive component 25 adopts an electric push rod set in the fixed base 4, and the output end of the electric push rod is fixedly connected to the movable base 6.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] 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 conveniently adjustable automated instrument testing device for chemical processing, characterized in that, include: The base (1), and a linear drive component 1 (3) and a test box (2) are disposed on the top of the base (1). A fixed seat (4) is movably disposed on the linear drive component 1 (3). Two movable seats (6) are movably disposed on the fixed seat (4) through the linear drive component 2 (5). A clamping mechanism (7) is disposed on the movable seat (6). The clamping mechanism (7) includes a movable plate (703) movably mounted on a movable seat (6). A push plate (701) is movably mounted on the front end of the movable plate (703) via an elastic element (702). An arc-shaped block (704) is movably mounted on the movable seat (6) at the rear end of the movable plate (703). A gripping frame (705) is mounted on the arc-shaped block (704).

2. The easily adjustable chemical automation instrument testing device according to claim 1, characterized in that, The linear drive component (3) is an electric guide rail.

3. The easily adjustable chemical automation instrument testing device according to claim 1, characterized in that, The second linear drive component (5) includes a bidirectional lead screw (501) movably disposed within a fixed seat (4), and the two ends of the bidirectional lead screw (501) are threadedly connected to two movable seats (6) respectively.

4. The easily adjustable automated chemical testing instrument according to claim 1, characterized in that, A wing plate (502) is provided on the movable seat (6) on the side of the fixed seat (4), and a limit bolt (503) is threaded on the wing plate (502).

5. The easily adjustable chemical automation instrument testing device according to claim 1, characterized in that, A telescopic column (709) is provided between the push plate (701) and the movable plate (703).

6. The easily adjustable chemical automation instrument testing device according to claim 1, characterized in that, Both sides of the push plate (701) are movably provided with arc-shaped side plates (706), and an elastic element (708) is provided between the arc-shaped side plate (706) and the movable plate (703). A stop rod (707) is provided on the movable plate (703) at the rear end of the arc-shaped side plate (706).

7. The easily adjustable chemical automation instrument testing device according to claim 1, characterized in that, The movable seat (6) is provided with a sliding groove (7031), and the movable plate (703) is provided with a slider (7032). The slider (7032) is slidably connected to the sliding groove (7031).

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