Weighing and measuring device and method capable of being used for automatic weighing and measuring of explosive column

Abstract

The invention provides a weighing and measuring device and method capable of being used for automatic weighing and measuring of explosive columns, the weighing and measuring device comprises a device main body, the device main body comprises a vertical cabinet type rack, and the upper surface of the rack is sequentially provided with a weighing unit, a lifting turntable unit and a measuring unit from left to right; a discharging and receiving machine capable of moving in a plane mode is arranged in front of the lifting rotary disc unit, and a grain containing groove is formed in the discharging and receiving machine. The device can provide a basis for subsequent remote control type explosive column automatic weighing measurement, an operator can be isolated from the device body in a remote control mode subsequently, man-machine isolation operation is achieved, and the safety of the operator is guaranteed to the maximum extent.

Description

Technical Field

[0001] The invention belongs to the technical field of high-energy explosives, relates to physical and chemical performance detection experiments, and specifically relates to a weighing and measuring device and method that can be used for automatic weighing and measuring explosive columns. Background Art

[0002] As an important component of nuclear weapon implosion, the raw materials of explosives are made into explosive columns through processes such as pressing, melting or pouring, and finally become the core of artillery shells, realizing the long-range strike of ultra-long-range rockets and tactical missiles. However, the changes in the shape and volume of the explosive column and whether it is deformed are the key to guiding the charging of explosives.

[0003] Accelerated aging storage life estimation and high and low temperature environmental testing are both mandatory test items for the identification of explosive formula products, and are also important testing methods for the research on failure modes and failure mechanisms of explosive special projects, new formulas and charges. Both accelerated aging tests and environmental tests subject explosive columns to long-term stimulation in extreme environments such as high or low temperatures, and track and detect changes in the physical and chemical properties of explosive columns to determine failure parameters, find out the critical failure point at different temperatures, and establish mathematical models to estimate the natural storage life or judge the tolerance of explosive columns in extreme environments.

[0004] At present, according to the situation of the existing laboratory, the process flow of the weighing process is that the operator places the explosive column on the balance for weighing operation, one person operates, and one person checks and records; the process flow of the measuring process is that the operator marks a point every 45° on one side of the explosive column, uses a vernier caliper, micrometer or geometric dimension measuring instrument to measure the height of four points on the explosive column and the diameter length between the four points, and obtains four height values ​​and four diameter values. One person operates, and one person checks and records. It takes two people to complete the weighing measurement of a single column for 8min to 13min. A group of samples takes three explosive columns for parallel testing. The explosive column needs to be weighed and measured before and after the test. After the on-site operation is completed, one person needs to enter the measured data before and after the test into the Excel table truthfully, calculate the volume, mass and volume change rate of the explosive column, and compile the original record and test report, and another person checks, and prints the original data and test report after the verification.

[0005] Most of these test samples are "four new / first time". These explosive column samples have been subjected to long-term extreme environmental stimulation, and their stability has deteriorated, their mechanical sensitivity has increased, and their dangerous performance is unknown. When operators weigh and measure the explosive columns face to face (especially after the test), combustion and explosion are prone to occur. In particular, during the measurement process, the operator repeatedly rubs the sample with the measuring tool, which causes combustion and explosion due to friction or static electricity accumulation. In the accelerated aging test and environmental test of explosives, the mass and size (diameter and height) of the sample are first weighed and measured before the test begins, and then the sample is placed in the test box. During or after the test, the sample is taken out of the test box and the mass and size are weighed and measured again. The sample has experienced environmental stimulation such as high temperature or low temperature, and its stability is worse than that of ordinary explosive samples, and its mechanical sensitivity has increased. During the measurement process, combustion and explosion are easily caused by multiple frictions or static electricity accumulation.

[0006] In addition, quality issues such as human errors caused by measuring with hand-held vernier calipers and other measuring tools, and the probability of data recording and processing errors affect the accuracy, consistency and reproducibility of detection. Summary of the invention

[0007] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a weighing measurement device and method that can be used for automatic weighing measurement of explosive columns, so as to solve the technical problem that the safety of operators in the weighing measurement process of explosive columns in the prior art needs to be further improved.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0009] A weighing and measuring device comprises a device body, wherein the device body comprises a vertical cabinet-type frame, and a weighing unit, a lifting turntable unit and a measuring unit are arranged on the upper surface of the frame from left to right in sequence, and a material discharge and receiving machine which can move in a plane is arranged in front of the lifting turntable unit, and a drug column placement slot is arranged on the material discharge and receiving machine.

[0010] The present invention also has the following technical features:

[0011] Preferably, the lifting turntable unit is arranged in the middle of the upper surface of the frame.

[0012] The weighing unit is arranged on the left side of the lifting turntable unit.

[0013] The measuring unit is arranged directly to the right of the lifting turntable unit.

[0014] Specifically, the weighing unit includes a weighing balance arranged on the upper surface of the frame, a horizontal weighing fixed tray is arranged on the weighing balance, and a liftable weighing protective cover is also arranged on the top of the weighing balance, the interior of the weighing protective cover is hollow and the bottom is open.

[0015] Specifically, the lifting turntable unit includes a ball screw movable in the vertical direction, a rotatable turntable is arranged on the ball screw in the horizontal direction, a plurality of drug column supporting claws are evenly arranged on the outer edge of the turntable, and the middle of each drug column supporting claw is a groove.

[0016] Specifically, the measuring unit comprises a rotating turntable for measuring the medicine column, and a dimension measuring instrument which can be raised and lowered and has a contact displacement sensor is arranged on the top of the rotating turntable for measuring the medicine column.

[0017] Specifically, the device body is also connected to a control cabinet via an external connection; the control cabinet comprises a vertical cabinet-type control cabinet frame, and a remote monitoring and analysis platform is arranged on the control cabinet frame.

[0018] Preferably, a camera capable of remote monitoring is provided in the top space of the device body, and the shooting range of the camera covers the device body.

[0019] The present invention also protects a weighing measurement method, which is implemented by using the weighing measurement device as described above; the method specifically comprises the following steps:

[0020] Step 1: The material unloading and receiving machine places the explosive column on the column supporting claw through planar movement. The column supporting claw delivers the explosive column to the weighing fixed tray through the rotation of the turntable and the lowering of the turntable under the action of the ball screw. At this time, the weighing scale and the weighing fixed tray are not in contact with the lifting turntable unit, and the weighing protective cover descends to cover the weighing scale. After the weighing scale is stable, the reading is taken through the remote monitoring and analysis platform.

[0021] Step 2. After weighing is completed, the weighing protective cover rises, and the turntable rotates to send the explosive column to the column measurement turntable, and then the diameter measuring probes on both sides of the bottom of the size measuring instrument measure the diameters of the upper and lower surfaces of the explosive column in turn. After the diameter measurements of the upper and lower surfaces of the explosive column are completed, the size measuring instrument descends, and the height measuring probe in the middle of the bottom of the size measuring instrument measures the height of the explosive column. Then the column measurement turntable rotates 90 degrees to repeat the measurement of the upper and lower surface diameters and heights of the explosive column.

[0022] Step three, after repeated measurement, the turntable rotates, and the explosive column supporting claws on the turntable send the explosive column back to the material discharge and receiving machine for return, thus completing the weighing measurement of the explosive column.

[0023] Compared with the prior art, the present invention has the following technical effects:

[0024] (I) The device of the present invention can provide a basis for the subsequent remote-controlled automatic weighing and measurement of explosive columns. The remote control method can be used to isolate the operator from the device body, thus realizing human-machine isolation operation and ensuring the safety of the operator to the greatest extent.

[0025] (II) The method of the present invention has the characteristics of strong versatility and short test time. Without changing the characteristics of the contact measurement method, it can realize automatic weighing and measurement of explosive columns, automatic data collection and calculation, and automatic issuance and printing of original records and reports, thereby realizing automation and unmanned operation of the entire weighing and measurement process, and improving the test efficiency by nine times. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of the weighing measurement device.

[0027] Figure 2 It is a structural diagram of the weighing unit.

[0028] Figure 3 It is a structural schematic diagram of the lifting turntable unit.

[0029] Figure 4 A schematic diagram of the structure of the measurement unit.

[0030] Figure 5 This is a physical picture of the weighing measurement device.

[0031] Figure 6 This is a complete flow chart of a set of weighing measurements in Example 2 of the present invention.

[0032] Figure 7 This is an operation flow chart of a set of weighing and measuring devices in Example 2 of the present invention.

[0033] The meanings of the numbers in the figure are: 1-device body, 2-frame, 3-weighing unit, 4-lifting turntable unit, 5-measuring unit, 6-discharging and receiving machine, 7-cartridge placement slot, 8-control cabinet, 9-camera.

[0034] 301- weighing balance, 302- weighing fixed tray, 303- weighing protective cover.

[0035] 401- ball screw, 402- turntable, 403- drug column supporting claw.

[0036] 501- drug column measuring rotating turntable, 502- dimension measuring instrument.

[0037] 801-control cabinet rack, 802-remote monitoring and analysis platform.

[0038] The specific contents of the present invention are further explained in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0039] It should be noted that, unless otherwise specified, all devices and equipment used in the present invention are devices and equipment known in the prior art. For example, the dimension measuring instrument is a commonly used dimension measuring instrument known in the art.

[0040] The present invention mainly relates to a testing method for tracking and measuring the mass and geometrical quantity of explosive columns with a diameter and a height range of 20 mm to 40 mm. The method is mainly used for testing the mass and dimensional changes of melt-cast, poured and pressed explosive columns. The present invention studies the safety and quality problems existing in the weighing and measuring procedures of existing accelerated aging storage life estimation and high and low temperature environmental tests, improves the safety, work efficiency and test quality of the weighing and measuring procedures of explosive columns, and can effectively guide the charging of explosives.

[0041] In accordance with the above technical scheme, specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical scheme of this application fall within the protection scope of the present invention.

[0042] Embodiment 1:

[0043] This embodiment provides a weighing measurement device, such as Figure 1 As shown, the device includes a device body 1, which includes a vertical cabinet-type frame 2. The upper surface of the frame 2 is provided with a weighing unit 3, a lifting turntable unit 4 and a measuring unit 5 from left to right. In front of the lifting turntable unit 4, a material discharger and receiver 6 that can be moved in a plane is provided, and a drug column placement slot 7 is provided on the material discharger and receiver 6.

[0044] As a preferred solution of this embodiment, the lifting turntable unit 4 is arranged in the middle of the upper surface of the frame 2.

[0045] The weighing unit 3 is arranged directly to the left of the lifting turntable unit 4 .

[0046] The measuring unit 5 is arranged directly to the right of the lifting turntable unit 4 .

[0047] As a preferred solution of this embodiment, Figure 2 As shown, the weighing unit 3 includes a weighing scale 301 arranged on the upper surface of the frame 2, a horizontal weighing fixed tray 302 is arranged on the weighing scale 301, and a liftable weighing protective cover 303 is also arranged on the top of the weighing scale 301. The inside of the weighing protective cover 303 is hollow and the bottom is open. The weighing protective cover 303 covers the explosive column inside for safety protection when the explosive column is weighed.

[0048] As a preferred solution of this embodiment, Figure 3As shown, the lifting turntable unit 4 includes a ball screw 401 that can move in the vertical direction, a turntable 402 that can rotate in the horizontal direction is arranged on the ball screw 401, and a plurality of drug column holding claws 403 are evenly arranged on the outer edge of the turntable 402, as shown in FIG. Figure 5 As shown, the middle of each drug column supporting claw 403 is a groove type.

[0049] As a preferred solution of this embodiment, Figure 4 As shown, the measuring unit 5 comprises a drug column measuring rotating turntable 501 , and a dimension measuring instrument 502 which can be raised and lowered and has a contact displacement sensor is arranged on the top of the drug column measuring rotating turntable 501 .

[0050] In this embodiment, the sides of the rack 2 are two brown acrylic glass with explosion-proof film, and each brown acrylic glass has an embedded black aluminum alloy handle. The bottom plate of the rack 2 is a 20mm thick anodized AL6061 plate with natural color treatment. The bottom plate is removable for device debugging and maintenance. There are heavy-duty 3-inch casters and heavy-duty M16 foot cups around the bottom of the device.

[0051] In this embodiment, the precision of the weighing balance 301 is ±0.1 mg, and the precision of the dimension measuring instrument 502 is ±3 μm.

[0052] In this embodiment, the weighing fixed tray 302 and the charge column measuring rotating turntable 501 are both in the shape of a groove, and explosive column holders are arranged on both sides of the middle of the groove. The height of the explosive column holder from the bottom of the groove is greater than or equal to the height of the charge column supporting claws 403, the width of the groove is equal to the width of the explosive column, and the width of the groove is greater than the width of the charge column supporting claws 403, so that the charge column supporting claws 403 can accurately place the explosive column on the explosive column holder in the groove, and then the turntable 402 descends and the weighing fixed tray 302 or the charge column measuring rotating turntable 501 moves to remove the charge column supporting claws 403, and finally the explosive column is weighed or measured.

[0053] In this embodiment, the weighing unit 3, the lifting turntable unit 4, the measuring unit 5 and the material unloading and receiving machine 6 are all controlled by explosion-proof servo motors. The movement accuracy of the explosion-proof servo motors is ±0.02mm, which effectively ensures the safety, stability, efficiency and accuracy of the overall machine operation.

[0054] In this embodiment, the lifting turntable unit 4 is composed of an explosion-proof servo motor controlling the rotational motion and an explosion-proof servo motor plus a ball screw controlling the up and down motion. Four drug column supporting claws 403 are evenly arranged on the outer edge of the turntable 402. Each rotation is sensed by the sensor to sense the rotation and lifting into place. After the operating action is ensured to be in place, other mechanisms can perform subsequent actions. The screw movement accuracy is ±0.023mm~±0.05mm.

[0055] In this embodiment, the material discharging and receiving machine 6 is a linear module, which is composed of X and Y axes, and moves in a plane to move the designated explosive column into the column supporting claw 403 and unload the material after the test is completed.

[0056] As a preferred solution of this embodiment, in the process of realizing the subsequent automatic weighing and measurement of explosive columns, the device body 1 is also connected to the control cabinet 8 through an external connection; the control cabinet 8 includes a vertical cabinet-type control cabinet frame 801, and a remote monitoring and analysis platform 802 is arranged on the control cabinet frame 801.

[0057] In this embodiment, the remote monitoring and analysis platform 802 in the control cabinet 8 includes an operating computer, in which analysis software and remote monitoring software are integrated, a power switch and an emergency stop button of the device body 1 are distributed around the operating computer, and a printer is provided at the bottom of the control cabinet frame 801. The analysis software and remote monitoring software are both commonly used analysis software and remote monitoring software known in the art, or new analysis software and remote monitoring software are developed according to actual needs.

[0058] As a preferred solution of this embodiment, in the process of realizing the subsequent automatic weighing and measurement of the explosive column, a remotely monitored camera 9 is arranged in the top space of the device body 1 , and the shooting range of the camera 9 covers the device body 1 .

[0059] In this embodiment, the camera 9 uses a high-definition camera to perform panoramic monitoring of the entire process of weighing measurement and transmit it to the remote monitoring and analysis platform 802 in real time. The operator can clearly observe the equipment operation status and on-site conditions in the operation room to ensure safe operation.

[0060] Embodiment 2:

[0061] This embodiment provides a weighing measurement method, which is implemented by using the weighing measurement device in Embodiment 1; the method specifically comprises the following steps:

[0062] Step 1: the material unloading and receiving machine 6 places the explosive column on the column claw 403 through planar motion; the column claw 403 delivers the explosive column to the weighing fixed tray 302 through the rotation of the turntable 402 and the lowering of the turntable 402 under the action of the ball screw 401; at this time, the weighing scale 301 and the weighing fixed tray 302 are not in contact with the lifting turntable unit 4; the weighing protective cover 303 descends to cover the weighing scale 301; after the weighing scale 301 is stable, the reading is taken through the remote monitoring and analysis platform 802.

[0063] Step 2, after weighing is completed, the weighing protective cover 303 rises, the turntable 402 rotates to send the explosive column to the column measuring rotating turntable 501, and then the diameter measuring probes on both sides of the bottom of the size measuring instrument 502 measure the diameters of the upper and lower surfaces of the explosive column in turn. After the diameter measurement of the upper and lower surfaces of the explosive column is completed, the size measuring instrument 502 descends, and the height measuring probe in the middle of the bottom of the size measuring instrument 502 measures the height of the explosive column. Then the column measuring rotating turntable 501 rotates 90 degrees to repeat the measurement of the upper and lower surface diameters and height of the explosive column.

[0064] Step 3, after repeated measurement, the turntable 402 rotates, and the explosive column claws 403 on the turntable 402 send the explosive column back to the discharge and receiving machine 6 for return, that is, the weighing measurement of the explosive column is completed.

[0065] The order adopted by this method is weighing first and then measuring to prevent mechanical movement from causing errors in the weighing data. During weighing, other moving mechanisms do not work.

[0066] In this embodiment, taking the weighing of the mass, diameter and height of a group of three explosive columns as an example, the mass change rate, volume and volume change rate are recorded and calculated, and the original record and report are issued. The specific operation process is:

[0067] like Figure 6 As shown, the operator places the marked explosive column to be tested into the column placement slot 7 of the discharge and receiving machine 6, closes the equipment door and the explosion-proof door of the device body 1 in turn, goes to the monitoring room to turn on the equipment power and the computer power, and operates the remote monitoring and analysis platform 802 to reset the alarm, reset the whole machine, and confirm the size selection in turn. After confirming again through the video of the camera 9 that the status of the device body 1 is normal, long press the "work start button" to start the operation.

[0068] The explosive column weighing and measuring device starts to operate, such as Figure 7As shown, the material discharging and receiving machine 6 places the first explosive column on the column claw 403 through a plane movement, and the column claw 403 delivers the explosive column to the weighing fixed tray 302 through the rotation of the turntable 402. At this time, the weighing scale 301 and the weighing fixed tray 302 are not in contact with the lifting turntable unit 4, and the weighing protective cover 303 descends to cover the weighing scale 301, so that the weighing scale 301 is in a closed state. A delay is set in the device, and after the weighing scale 301 is stable, The readings are read through the remote monitoring and analysis platform 802. After the first explosive column is weighed, the weighing protection cover 303 rises, and then the column claw 403 takes the first explosive column off the weighing scale 301 by rotating the turntable 402, and at the same time, the second explosive column is placed on the weighing fixed tray 302 to weigh the second explosive column. After the weighing of the second explosive column is completed, the column claw 403 takes the second explosive column off the weighing scale 301 by rotating the turntable 402. 1, and at the same time, the third explosive column is placed on the weighing fixed tray 302 to weigh the third explosive column. After the weighing of the third explosive column is completed, the column claw 403 takes the third explosive column from the weighing balance 301 through the rotation of the turntable 402, and then the column claw 403 sends the first explosive column to the column measurement rotating turntable 501, and the diameter measuring probes on both sides of the bottom of the size measuring instrument 502 measure the diameters of the upper and lower surfaces of the first explosive column in turn. After the diameter measurements of the upper and lower surfaces of the first explosive column are completed, the size measuring instrument 502 descends to perform a height test on the first explosive column, and then the column measurement rotating turntable 501 rotates 90 degrees to repeat the measurement of the upper and lower surface diameters and height of the first explosive column. Two height measurement points and four diameter measurement points can be obtained simultaneously in each measurement. The column measurement rotating turntable 501 takes a value every time it rotates 90 degrees. A number of groups of data can be obtained according to needs, which are generally even numbers. After the repeated measurement of the first explosive charge is completed, the turntable 402 rotates, and the charge claw 403 on the turntable 402 takes the first explosive charge and sends it back to the material discharging and receiving machine 6 for returning to its original position. Then, according to the measurement method of the first explosive charge, the diameter and height of the second and third explosive charges are measured in sequence. After the repeated measurement of the third explosive charge is completed, the turntable 402 rotates, and the charge claw 403 on the turntable 402 sends the third explosive charge to the material discharging and receiving machine 6 for returning to its original position. The whole returns to zero position, and the weighing measurement of the explosive charge is completed.

[0069] After the operation of the explosive column weighing and measuring device is completed, the operator saves, processes and outputs the data through the operating software in the remote monitoring and analysis platform 802, prints the original records and reports, and finally the operator enters the explosion-proof room to remove the three explosive columns after the operation from the explosive column weighing and measuring device, restores the environment, and the test is completed.

Claims

1. A weighing and measuring device, comprising a device body (1), characterized in that: The device body (1) comprises a vertical cabinet-type frame (2), and a weighing unit (3), a lifting turntable unit (4) and a measuring unit (5) are arranged on the upper surface of the frame (2) from left to right in sequence. A material discharge and receiving machine (6) capable of plane movement is arranged in front of the lifting turntable unit (4), and a drug column placement slot (7) is arranged on the material discharge and receiving machine (6).

2. The weighing measuring device according to claim 1, characterized in that: The lifting turntable unit (4) is arranged in the middle of the upper surface of the frame (2); The weighing unit (3) is arranged directly to the left of the lifting turntable unit (4); The measuring unit (5) is arranged directly to the right of the lifting turntable unit (4).

3. The weighing measuring device according to claim 1, characterized in that: The weighing unit (3) comprises a weighing scale (301) arranged on the upper surface of the frame (2), a horizontal weighing fixed tray (302) being arranged on the weighing scale (301), and a liftable weighing protective cover (303) being arranged on the top of the weighing scale (301), the inside of the weighing protective cover (303) being hollow and the bottom being open.

4. The weighing and measuring device according to claim 1, characterized in that: The lifting turntable unit (4) includes a ball screw (401) that can move in the vertical direction, and a rotatable turntable (402) is arranged on the ball screw (401) in the horizontal direction. A plurality of drug column supporting claws (403) are evenly arranged on the outer edge of the turntable (402), and the middle of each drug column supporting claw (403) is a groove type.

5. The weighing measuring device according to claim 1, characterized in that: The measuring unit (5) comprises a drug column measuring rotating turntable (501), and a dimension measuring instrument (502) which can be raised and lowered and has a contact displacement sensor is arranged on the top of the drug column measuring rotating turntable (501).

6. The weighing measuring device according to claim 1, characterized in that: The device body (1) is also connected to a control cabinet (8) via an external connection; the control cabinet (8) comprises a vertical cabinet-type control cabinet frame (801), and a remote monitoring and analysis platform (802) is arranged on the control cabinet frame (801).

7. The weighing and measuring device according to claim 1, characterized in that: A camera (9) capable of remote monitoring is arranged in the top space of the device body (1), and the shooting range of the camera (9) covers the device body (1).

8. A weighing measurement method, characterized in that: The method is implemented by using the weighing and measuring device according to any one of claims 1 to 7; the method specifically comprises the following steps: Step 1: The material discharge and receiving machine (6) places the explosive column on the column claw (403) through planar motion, and the column claw (403) delivers the explosive column to the weighing fixed tray (302) through the rotation of the turntable (402) and the descending of the turntable (402) under the action of the ball screw (401). At this time, the weighing scale (301) and the weighing fixed tray (302) are not in contact with the lifting turntable unit (4), and the weighing protective cover (303) descends to cover the weighing scale (301). After the weighing scale (301) is stable, the reading is taken through the remote monitoring and analysis platform (802); Step 2: After weighing is completed, the weighing protective cover (303) is raised, and the turntable (402) is rotated to send the explosive column to the explosive column measuring turntable (501), and then the diameter measuring probes on both sides of the bottom of the size measuring instrument (502) measure the diameters of the upper and lower surfaces of the explosive column in sequence. After the diameter measurement of the upper and lower surfaces of the explosive column is completed, the size measuring instrument (502) is lowered, and the height measuring probe in the middle of the bottom of the size measuring instrument (502) measures the height of the explosive column, and then the explosive column measuring turntable (501) is rotated 90 degrees to repeat the measurement of the upper and lower surface diameters and height of the explosive column; Step 3, after repeated measurement, the turntable (402) rotates, and the explosive column claws (403) on the turntable (402) send the explosive column back to the material discharge and collection machine (6) for return, thus completing the weighing measurement of the explosive column.

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