Sample preparation device for chemical component inspection of small-diameter metal wire and method thereof

Abstract

The invention discloses a sample preparation device for chemical component inspection of a small-diameter metal wire and a method thereof, and relates to the technical field of chemical detection. The sample preparation device for chemical component inspection of the small-diameter metal wire comprises a sample preparation device base, side sliding rail grooves are formed in the two sides of the top of the sample preparation device base, and clamping linkage sliding rods are movably connected into the side sliding rail grooves in a sleeved mode. According to the sample preparation device and method for chemical component inspection of the small-diameter metal wire, the steps of measuring the thickness one by one through a high-precision caliper and manually adjusting the distance between clamping plates of a special clamp are omitted, errors generated in the manual measuring, adjusting and clamping processes are avoided through the synergistic effect of a diameter adaptation module and a preset program, and the detection accuracy is improved. And meanwhile, cutting marks do not need to be manually aligned in the whole process, repeated manual operation links are reduced, and the working intensity of operators is reduced.

Description

Technical Field

[0001] This invention relates to the field of chemical detection technology, specifically to a sample preparation device and method for testing the chemical composition of small-diameter metal wires. Background Technology

[0002] In the analysis of quality disputes concerning metallic materials, chemical composition testing is a crucial step in determining the ownership of disputed samples and handling after-sales compensation issues. The industry mainstream utilizes direct-reading spectrometers for this testing. According to GB / T 4336-2016 "Determination of Multi-Element Content in Carbon Steel and Medium-Low Alloy Steel - Spark Discharge Atomic Emission Spectrometry," the sample to be tested must have an analytical surface diameter greater than 16 mm and a thickness greater than 2 mm, and the surface must be flat and clean to ensure the accuracy and reliability of the test results. When cutting and sampling small-diameter metal wires, the original thickness of the sample section must first be measured and recorded using high-precision calipers to ensure that the thickness meets the requirements for subsequent flattening. During the cutting process, a special clamp must be used to fix the wire to prevent wire misalignment that could lead to uneven cross-sections or length deviations. The clamp must be adapted to the wire diameter, and adjustable clamps should be used to apply force evenly from both sides, while ensuring that the cutting area is fully exposed. After the wire is securely fixed, it should be precisely cut along the preset marks to obtain a sample with a length greater than 150mm, laying the foundation for qualified samples for subsequent flattening and chemical composition testing. In the above sampling steps, the thickness must be manually measured with high-precision calipers and the data recorded for each wire. Specialized clamps require adjusting the clamp spacing according to the diameter of each wire and manually clamping it in place. Cutting also requires precise alignment with preset marks. Each step relies on manual processing. In batch sampling, repetitive measurements, clamp adjustments, and alignment operations significantly increase working hours, making continuous and efficient operation impossible. This results in a limited number of samples processed per unit time, a significant decrease in testing efficiency, and an inability to meet the rapid testing needs of large batches of samples with quality issues. Summary of the Invention

[0003] The purpose of this invention is to provide a sample preparation device and method for testing the chemical composition of small-diameter metal wires, which solves the problems mentioned in the background art by using a combination of a quick-clamping mechanism and a groove.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a sample preparation device for chemical composition testing of small-diameter metal wire, comprising a sample preparation device base, side slide rail grooves on both sides of the top of the sample preparation device base, a clamping linkage slide rod movably sleeved inside the side slide rail groove, a quick clamping mechanism provided at the top of the clamping linkage slide rod, a wire carrying lifting platform fixedly sleeved in the middle of the sample preparation device base, the top of the wire carrying lifting platform and the top of the small-diameter metal wire to be sampled fitting together, and the bottom of the wire carrying lifting platform being fixedly connected to the side of the clamping linkage slide rod through a movable component.

[0005] Preferably, the quick-clamping mechanism includes a quick-clamping mechanism mounting base, a built-in sliding groove for the clamping mechanism, a sliding shaft built into the groove, a clamping buffer spring, a spring limiting sleeve, a wire clamping telescopic arm, and a wire gripper with an angled guide. The quick-clamping mechanism mounting base is fixedly installed on one side of the clamping linkage slide rod. The quick-clamping mechanism mounting base has a built-in sliding groove for the clamping mechanism inside. The sliding shaft built into the groove is movably installed inside the groove, and the outer wall of the groove is also wound with a clamping buffer spring. The side of the clamping buffer spring abuts against the side of the spring limiting sleeve, and the inside of the spring limiting sleeve and the outer wall of the sliding shaft built into the groove are movably connected. The side of the spring limiting sleeve is inlaid with a wire clamping telescopic arm. The end of the wire clamping telescopic arm away from the spring limiting sleeve is fixedly installed with a wire gripper with an angled guide. A longitudinally rotating gripper-built-in rolling friction wheel is movably installed inside one side of the wire gripper with an angled guide.

[0006] Preferably, the quick-clamping mechanism further includes a gripper limiting shaft, a clamping limiting rebound spring, a limiting shaft movable collar, an adapter ring, a slide rod end rotating mechanism mounting base, a rotating mechanism built-in cavity, a cavity-in-place fixed shaft, and a rotating shaft external spring. The end of the clamping linkage slide rod away from the quick-clamping mechanism mounting base is fixedly mounted with the slide rod end rotating mechanism mounting base. The slide rod end rotating mechanism mounting base has a rotating mechanism built-in cavity inside, and a cavity-in-place fixed shaft is fixedly mounted inside the rotating mechanism built-in cavity. The rod has a fixed shaft rod inside the cavity with a rotating shaft external spring movably sleeved on its outer circumference. One side of the rotating shaft external spring is fitted with a rotating shaft external linkage block. The inside of the rotating shaft external linkage block and the outer wall of the fixed shaft rod inside the cavity away from the quick-clamping mechanism mounting seat are movably sleeved. Both sides of the rotating shaft external linkage block are fixedly installed with linkage block side connecting lugs. The outer wall of the linkage block side connecting lugs is movably connected to the end of the wire clamping telescopic arm away from the wire clamping through a connecting rod and a wire clamping claw with an angled guide.

[0007] Preferably, a telescopic arm end connecting slider is fixedly installed at the end of the wire clamping telescopic arm away from the wire clamping claw with the beveled guide, and a slider guide rod is movably sleeved inside the telescopic arm end connecting slider.

[0008] Preferably, a slider buffer compression spring is movably sleeved on the outer wall of the slider guide rod. The slider buffer compression spring is fixedly installed inside the spring and slider mounting cylinder. The spring and slider mounting cylinder are embedded in the inner wall of the spring limiting sleeve.

[0009] Preferably, the wire clamp with beveled guide has an installation opening on the side away from the built-in rolling friction wheel of the clamp. An adapter ring is fitted inside the installation opening. A clamp limiting shaft is fixedly installed on the side of the adapter ring. A clamping limiting rebound spring is movably sleeved on the outer wall of the clamp limiting shaft. A limiting shaft movable collar is movably sleeved on the end of the clamp limiting shaft near the adapter ring.

[0010] Preferably, the connecting component includes a built-in push plate for the lifting platform, a pneumatic transmission pipe, a sliding rod linkage push plate, a push member connecting telescopic rod, and a telescopic rod guide fixing seat. The top middle section of the sample preparation device base has a lifting platform embedding installation groove. The lifting platform embedding installation groove and the outer wall of the wire-bearing lifting platform are embedded and installed. The built-in push plate for the lifting platform is movably installed inside the wire-bearing lifting platform. The bottom of the built-in push plate for the lifting platform is fixedly installed with a push member connecting telescopic rod. Pneumatic transmission pipes are fixedly installed on both sides of the bottom of the telescopic rod guide fixing seat. The sliding rod linkage push plate is movably sleeved inside the pneumatic transmission pipe. The outer wall of the sliding rod linkage push plate and the outer wall of the clamping linkage sliding rod are fixedly connected.

[0011] Preferably, the pneumatic transmission tube has a transmission cavity pneumatic storage cavity inside, and a pneumatic push rod is movably sleeved inside the transmission cavity pneumatic storage cavity. The side of the pneumatic push rod is fixedly connected to the side of the slide rod linkage push plate.

[0012] Preferably, the wire-bearing lifting platform has a pusher stroke limiting groove inside, and a telescopic rod bottom pneumatic piston is fixedly installed at the bottom of the pusher connecting the telescopic rod. A piston guide fixing shaft is movably sleeved inside the telescopic rod bottom pneumatic piston, and a piston return rebound spring is movably sleeved on the outer wall of the piston guide fixing shaft. A pneumatic transmission through hole is opened on the side of the piston guide fixing shaft, and the bottom of the piston guide fixing shaft is fixedly installed inside the telescopic rod guide fixing seat. The bottom of the pneumatic transmission through hole and the pneumatic storage chamber of the transmission cavity opened inside the pneumatic transmission pipe are interconnected.

[0013] Preferably, it includes the following steps; S1. Clamping and Positioning: Place the small-diameter metal wire to be sampled on the top of the wire-bearing lifting platform. Gravity pushes the platform to retract into the base of the sample preparation device. The moving parts at the bottom of the platform move the clamping linkage slide rod to both sides of the wire, triggering the rapid clamping mechanism: the angled-guided wire jaws guide the wire to cut into the outer wall of the rolling friction wheel inside the jaws. The angled-guided jaws compress the wire clamping telescopic arm, causing it to retract. The slider connected to the end of the telescopic arm compresses the slider, buffering the spring and storing energy. The angled-guided jaws rotate around the connecting rod, expanding outwards so that the wire enters between the two angled-guided jaws, forming a frictional connection. The increased spacing between the angled-guided jaws compresses the external spring of the rotating shaft and the clamping limit rebound spring, using the rebound force to double-fix the wire. Simultaneously, the small-diameter metal wire to be sampled, when placed against the built-in push plate of the lifting platform, causes the push component to extend the connecting telescopic rod into the telescopic rod guide fixing seat. The pneumatic piston at the bottom of the telescopic rod moves down, squeezing the piston reset rebound spring, and forcing the air at the bottom of the pneumatic piston through the pneumatic transmission through-hole into the pneumatic storage chamber of the pneumatic transmission tube. The gas pushes the push rod to extend, causing the clamping linkage slide rod to move to both sides of the mounting groove of the lifting platform for further clamping. The built-in push plate of the lifting platform moves to the bottom of the push component stroke limit groove, and the depth of the push component stroke limit groove reaches mm, completing the precise positioning of the small-diameter metal wire to be sampled.

[0014] S2. Cutting and Sampling: After positioning the small-diameter metal wire to be sampled, place the cutting tool against the upper surface of the sample preparation device base and cut at the position where the small-diameter metal wire to be sampled is flush with the top of the sample preparation device base. The sample remains inside the sample preparation device base.

[0015] S3. After the reset and unloading cutting is completed, push the clamping linkage slide rod to one side, which drives the slide rod linkage push plate to pull the air pressure to push the top rod back. The air pressure storage chamber of the transmission cavity forms a negative pressure, causing the gas to flow back through the air pressure transmission hole. The piston reset rebound spring rebounds and pushes the air pressure piston at the bottom of the telescopic rod and the built-in push plate of the lifting platform to lift the wire carrying lifting platform, pushing the sample out of the sample preparation device base. At the same time, the clamping linkage slide rod drives the quick clamping mechanism to clamp the remaining small-diameter metal wire to be sampled and move it to one side of the sample preparation device base. Pull the small-diameter metal wire to be sampled upward so that it rubs and rolls against the built-in rolling friction wheel of the gripper and then disengages. Finally, the compressed clamping limit rebound spring, the external spring of the rotating shaft, the spring limit sleeve plate, and the slider buffer compression spring rebound and reset, and the device returns to its initial state for the next operation.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. A sample preparation device and method for chemical composition testing of small-diameter metal wires. This device eliminates the steps of measuring the thickness of each wire with a high-precision caliper and manually adjusting the spacing of the clamping plates of the special fixture. Through the synergy of the diameter adaptation module and the preset program, it automatically matches the diameter parameters of small-diameter metal wires of different specifications to be sampled, and accurately controls the clamping force of the quick-clamping mechanism and the depth of the travel limit groove of the pusher. This avoids errors that occur during manual measurement, adjustment, and clamping, ensuring consistent clamping and positioning accuracy for each wire. At the same time, no manual alignment of cutting marks is required throughout the process, reducing repetitive manual operations and lowering the workload of operators.

[0017] 2. This sample preparation device and method for chemical composition testing of small-diameter metal wires achieves automatic unloading and resetting through component linkage, and then proceeds to the clamping process of the next wire. This breaks the manual operation mode of processing samples one by one, and forms a continuous cycle operation system of clamping, positioning, cutting, unloading and resetting. This design significantly shortens the total working time of batch sampling, significantly increases the number of samples processed per unit time, and can meet the rapid testing needs of large batches of quality disputed samples, effectively solving the problem of low detection efficiency under the traditional operation mode. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the top of the clamping linkage slide rod in this invention; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the spring and slider mounting cylinder in this invention; Figure 4 This is a schematic diagram of the overall bottom structure of the sample preparation device base in this invention; Figure 5 This is a two-dimensional structural diagram of the top of the pneumatic transmission rod in this invention; Figure 6 This is a schematic diagram of the internal cross-sectional structure of the wire-bearing lifting platform and the telescopic rod guide fixing seat in this invention; Figure 7 This is a schematic diagram of the clamping structure of the present invention; Figure 8 This is a schematic diagram of the structure of the sample taken out after processing according to the present invention.

[0019] In the diagram: 1. Sample preparation device base; 2. Side slide rail groove; 3. Clamping linkage slide rod; 4. Wire carrying lifting platform; 5. Small-diameter metal wire to be sampled; 6. Clamping limit rebound spring; 7. Lifting platform embedded mounting groove; 9. Lifting platform built-in push plate; 10. Pneumatic transmission pipe; 11. Slide rod linkage push plate; 12. Push component connecting telescopic rod; 13. Telescopic rod guide fixing seat; 14. Pneumatic push rod; 15. Transmission cavity pneumatic storage chamber; 31. Quick clamping mechanism mounting seat; 32. Clamping mechanism built-in slide groove; 33. Slide groove built-in sliding shaft; 34. Clamping buffer storage spring; 35. Spring limit sleeve; 36. Wire clamping telescopic arm; 37. Wire clamp with angled guide; 38. 39. Gripper with built-in rolling friction wheel; 41. Gripper limiting shaft; 62. Pushing component stroke limiting groove; 63. Limiting shaft movable collar; 64. Adaptor ring; 65. Slide rod end rotating mechanism mounting seat; 66. Rotating mechanism built-in chamber; 67. Chamber-in-place fixed shaft; 121. Rotating shaft external spring; 122. Telescopic rod bottom pneumatic piston; 123. Piston guide fixed shaft; 124. Piston reset rebound spring; 125. Pneumatic transmission through hole; 361. Telescopic arm end connecting slider; 362. Slider guide slide rod; 363. Slider buffer compression spring; 364. Spring and slider mounting cylinder; 651. Rotating shaft external rotating linkage block; 661. Linkage block side connecting lug; 671. Connecting rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-8 This invention provides a sample preparation device and method for testing the chemical composition of small-diameter metal wires: A sample preparation device and method for testing the chemical composition of small-diameter metal wires includes a sample preparation device base 1. Side slide rail grooves 2 are provided on both sides of the top of the sample preparation device base 1. A clamping linkage slide rod 3 is movably sleeved inside the side slide rail groove 2. A quick-clamping mechanism is provided on the top of the clamping linkage slide rod 3. A wire carrying lifting platform 4 is fixedly sleeved in the middle of the sample preparation device base 1. The top of the wire carrying lifting platform 4 and the top of the small-diameter metal wire 5 to be sampled are in contact with each other. The bottom of the wire carrying lifting platform 4 is fixedly connected to the side of the clamping linkage slide rod 3 through a movable component.

[0022] During operation, the small-diameter metal wire 5 to be sampled is placed on top of the wire-bearing lifting platform 4. The weight of the wire 5 itself pushes the lifting platform 4 to retract into the sample preparation device base 1. During this retraction, the movable component at the bottom of the lifting platform 4 drives the clamping linkage slide rod 3 to move to both sides of the wire 5. At this time, the quick-clamping mechanism at the top of the clamping linkage slide rod 3 clamps the outer wall of the wire 5, thus limiting the wire 5 to the installation position. Then, the wire 5 is cut at the point where it is flush with the top of the sample preparation device base 1. After cutting, the sampled area remains inside the sample preparation device base 1. The clamping linkage slide rod 3 is then pushed to one side, causing the connected movable component to drive the lifting platform 4 upwards, detaching the sampled part from the sample preparation device base 1. The sampled material can then be retrieved. Figure 7 and Figure 8 As shown.

[0023] Please see Figure 1-3 The quick-clamping mechanism includes a quick-clamping mechanism mounting base 31, a built-in sliding groove 32, a sliding shaft 33 built into the groove, a clamping buffer spring 34, a spring limiting sleeve 35, a wire clamping telescopic arm 36, and a wire clamping claw 37 with an angled guide. The quick-clamping mechanism mounting base 31 is fixedly installed on one side of the clamping linkage slide rod 3. The quick-clamping mechanism mounting base 31 has a built-in sliding groove 32 inside. The sliding shaft 33 is movably installed inside the built-in sliding groove 32 and its outer wall is also wound with... There is a clamping buffer storage spring 34, the side of the clamping buffer storage spring 34 abuts against the side of the spring limiting sleeve 35, and the inside of the spring limiting sleeve 35 and the outer wall of the sliding shaft 33 built into the slide groove are movably connected. A wire clamping telescopic arm 36 is embedded in the side of the spring limiting sleeve 35. A wire clamping telescopic arm 36 with an angled guide is fixedly installed at the end of the wire clamping telescopic arm 36 away from the spring limiting sleeve 35. A longitudinally rotating clamping claw built-in rolling friction wheel 38 is movably installed inside one side of the wire clamping claw 37. The quick-clamping mechanism also includes a gripper limiting shaft 39, a clamping limiting rebound spring 6, a limiting shaft movable collar 62, an adapter ring 63, a slide rod end rotating mechanism mounting base 64, a rotating mechanism internal cavity 65, an internal cavity fixed shaft 66, and a rotating shaft external spring 67. The end of the clamping linkage slide rod 3 away from the quick-clamping mechanism mounting base 31 is fixedly mounted with the slide rod end rotating mechanism mounting base 64. The slide rod end rotating mechanism mounting base 64 has an internal rotating mechanism internal cavity 65 inside, and the internal rotating mechanism internal cavity 65 is fixedly mounted with the cavity fixed shaft 66. An external rotating spring 67 is movably sleeved on the outer circumference of the indoor fixed shaft rod 66. An external rotating linkage block 651 is attached to one side of the external rotating spring 67. The inner wall of the external rotating linkage block 651 and the outer wall of the inner fixed shaft rod 66 away from the quick clamping mechanism mounting seat 31 are movably sleeved. Both sides of the external rotating linkage block 651 are fixedly installed with linkage block side connecting lugs 661. The outer wall of the linkage block side connecting lugs 661 is movably connected to the end of the wire clamping telescopic arm 36 away from the wire clamping through the connecting rod 671 and the wire clamping claw 37 with beveled guide. A telescopic arm 36 is fixedly installed at one end away from the wire clamping claw 37 with an angled guide. A slider end connecting slider 361 is movably sleeved inside the telescopic arm end connecting slider 361. A slider guide rod 362 is movably sleeved on the outer wall of the slider guide rod 362. A slider buffer compression spring 363 is fixedly installed inside the spring and slider mounting cylinder 364. The spring and slider mounting cylinder 364 and the outer wall of the spring limiting sleeve 35 are embedded in the spring. The wire clamp 37 with angled guide has an installation port on the side away from the built-in rolling friction wheel 38. An adapter ring 63 is fitted inside the installation port. A clamp limiting shaft 39 is fixedly installed on the side of the adapter ring 63. A clamping limiting rebound spring 6 is movably sleeved on the outer wall of the clamp limiting shaft 39. A limiting shaft movable collar 62 is movably sleeved on the end of the clamp limiting shaft 39 near the adapter ring 63.

[0024] When the clamping linkage slide bar 3 in the above embodiment moves to both sides of the small-diameter metal wire 5 to be sampled, the quick clamping mechanism set at its top will come into contact with the small-diameter metal wire 5 to be sampled. It should be noted that one side of the wire clamp 37 with beveled guide is beveled. During the process of the wire clamp 37 with beveled guide coming into contact with the small-diameter metal wire 5 to be sampled, the small-diameter metal wire 5 to be sampled can be quickly cut into the outer wall of the rolling friction wheel 38 built into the clamp by means of the guiding effect of the beveled angle.

[0025] During the process of the small-diameter metal wire 5 to be sampled and the wire clamp 37 with the beveled guide fitting together at an angle, the wire clamping telescopic arm 36, which is fixedly connected to the outer wall of the wire clamp 37 with the beveled guide, will retract into the spring and slider mounting cylinder 364. During the retraction process, the slider 361 connected to the telescopic arm end, which is fixedly connected to the outer wall of the wire clamping telescopic arm 36, will move along the outer wall of the slider guide rod 362 towards the bottom of the inner cavity of the spring and slider mounting cylinder 364. At the same time, the slider buffer compression spring 363, which is movably sleeved on the outer wall of the slider guide rod 362, will be squeezed, thereby generating stored force.

[0026] Additionally, it should be noted that when the wire clamping telescopic arm 36 moves inside the spring and the slider mounting cylinder 364, the end of the wire clamping claw 37 with the angled guide away from the angle can be rotated through the connecting rod 671. This causes the end of the wire clamping claw 37 with the angled guide near the angle to be in an outward expansion state, thereby allowing the small-diameter metal wire 5 to be sampled to smoothly enter the gap between the two oppositely arranged wire clamping claws 37 with the angled guide, and form a frictional connection with the built-in rolling friction wheel 38 of the claw that is movably sleeved inside the wire clamping claw 37 with the angled guide.

[0027] When the small-diameter metal wire 5 to be sampled enters the spacing of the wire clamp 37 with angled guide, the spacing between the two opposing wire clamps 37 with angled guide needs to be widened. This will cause the wire clamp 37 with angled guide to drive the clamping buffer storage spring 34 and the rotating linkage block 651 connected to the wire clamping telescopic arm 36 through the connecting rod 671, and squeeze the rotating linkage spring 67 with the external shaft along the outer wall of the cavity fixed shaft rod 66. After being squeezed, the rotating linkage spring 67 with the external shaft will generate a rebound force, so that the two ends of the wire clamp 37 with angled guide will form a squeezing force, thereby firmly fixing the small-diameter metal wire 5 to be sampled that is in contact with the rolling friction wheel 38 inside the clamp.

[0028] During the movement of the angled wire clamp 37, the adapter ring 63 extends into the installation port. At this time, the side of the angled wire clamp 37 away from the built-in rolling friction wheel 38 pushes the movable collar 62 of the limiting shaft, causing it to squeeze and clamp the limiting rebound spring 6 along the outer wall of the limiting shaft 39. The rebound force generated by the clamping limiting rebound spring 6 after being squeezed will apply a limiting force to the middle of the angled wire clamp 37, thereby achieving the limiting installation of the small diameter metal wire 5 to be sampled.

[0029] After sampling is completed, push the clamping linkage slide bar 3 to one side. This will cause the fixed small-diameter metal wire 5 to be sampled to be clamped by the quick-clamping mechanism at the top of the clamping linkage slide bar 3 and moved to one side of the sample preparation device base 1. At this time, the small-diameter metal wire 5 can be pulled upward. During the pulling process, the small-diameter metal wire 5 will rub against the outer wall of the rolling friction wheel 38 built into the claw and roll along with it. This allows it to be quickly removed from the gap between the two opposing wire clamping claws 37 with angled guides. After the small-diameter metal wire 5 is removed, the clamping limit rebound spring 6, the external spring 67 of the rotating shaft, the clamping buffer storage spring 34, and the slider buffer compression spring 363, which were previously squeezed, will automatically reset for subsequent repeated use.

[0030] Please see Figure 4-7 The connecting components include a lifting platform built-in push plate 9, a pneumatic transmission pipe 10, a sliding rod linkage push plate 11, a push member connecting telescopic rod 12, and a telescopic rod guide fixing seat 13. The top middle section of the sample preparation device base 1 is provided with a lifting platform inlay mounting groove 7. The lifting platform inlay mounting groove 7 is inlaid and installed inside the wire carrying lifting platform 4 and on the outer wall. The lifting platform built-in push plate 9 is movably installed inside the wire carrying lifting platform 4. The push member connecting telescopic rod 12 is fixedly installed at the bottom of the lifting platform built-in push plate 9. Pneumatic transmission pipes 10 are fixedly installed on both sides of the bottom of the telescopic rod guide fixing seat 13. The sliding rod linkage push plate 11 is movably sleeved inside the pneumatic transmission pipe 10. The outer wall of the sliding rod linkage push plate 11 is fixedly connected to the outer wall of the clamping linkage sliding rod 3. The pneumatic transmission tube 10 has a transmission cavity pneumatic storage cavity 15 inside, and a pneumatic push rod 14 is movably sleeved inside the transmission cavity pneumatic storage cavity 15. The side of the pneumatic push rod 14 is fixedly connected to the side of the slide rod linkage push plate 11. The wire carrying lifting platform 4 has a pusher stroke limit groove 41 inside. The bottom of the pusher connecting telescopic rod 12 is fixedly installed with a telescopic rod bottom air pressure piston 121. The inside of the telescopic rod bottom air pressure piston 121 is movably sleeved with a piston guide fixing shaft 122. The outer wall of the piston guide fixing shaft 122 is movably sleeved with a piston reset rebound spring 123. The side of the piston guide fixing shaft 122 has an air pressure transmission through hole 124. The bottom of the piston guide fixing shaft 122 is fixedly installed inside the telescopic rod guide fixing seat 13. The bottom of the air pressure transmission through hole 124 and the transmission cavity air pressure storage cavity 15 opened inside the air pressure transmission pipe 10 are interconnected.

[0031] When the small-diameter metal wire 5 to be sampled is placed on top of the wire-bearing lifting platform 4, the bottom of the small-diameter metal wire 5 will fit against the top of the built-in push plate 9 of the lifting platform. During the fitting process, the push member connecting telescopic rod 12, which is fixedly connected to the bottom of the built-in push plate 9 of the lifting platform, will extend into the interior of the telescopic rod guide fixing seat 13. During the extension, the telescopic rod bottom pneumatic piston 121, which is fixedly installed at the bottom of the push member connecting telescopic rod 12, will move downward along the outer wall of the piston guide fixing shaft 122, and at the same time squeeze the piston return rebound spring 123. At the same time, the air stored at the bottom of the telescopic rod bottom pneumatic piston 121 is compressed and will be transported through the pneumatic transmission through hole 124 to the transmission cavity pneumatic storage chamber 15 opened inside the pneumatic transmission pipe 10.

[0032] When a large amount of gas is stored in the pneumatic storage chamber 15 of the transmission cavity, the gas will generate thrust, pushing the pneumatic push rod 14 out from the inside of the pneumatic transmission pipe 10. During the extension of the pneumatic push rod 14, the clamping linkage slide rod 3, which is fixedly connected to the outer wall of the slide rod linkage push plate 11, will move along the inside of the side slide rail groove 2 to both sides of the lifting platform mounting groove 7, thereby clamping the small-diameter metal wire 5 to be sampled placed inside the lifting platform mounting groove 7.

[0033] When the built-in push plate 9 of the lifting platform moves to the bottom of the push component stroke limit groove 41, the depth of the push component stroke limit groove 41 is exactly 150mm. At this time, the cutting tool can be placed against the upper surface of the sample preparation device base 1 to cut and sample the small-diameter metal wire 5 to be sampled. After the cutting is completed, the above steps are reversed to complete the separation of each component.

[0034] It should be noted that when the small-diameter metal wire 5 to be sampled is removed from the top of the built-in push plate 9 of the lifting platform, the piston reset rebound spring 123, which is squeezed by the air pressure piston 121 at the bottom of the telescopic rod, will generate a rebound force, which will drive the connected parts to reset so that the next operation can be carried out.

[0035] Working principle: Step 1: Clamping and Positioning The small-diameter metal wire 5 to be sampled is placed on top of the wire carrying lifting platform 4. The weight of the wire 5 itself pushes the lifting platform 4 to retract into the sample preparation device base 1. During this retraction, the movable part at the bottom of the lifting platform 4 drives the clamping linkage slide rod 3 to move to both sides of the small-diameter metal wire 5, triggering the rapid clamping mechanism. The angled guide wire jaws 37 use their angled guide to quickly cut into the outer wall of the built-in rolling friction wheel 38. The small-diameter metal wire 5 squeezes the angled guide wire jaws 37, causing the wire clamping mechanism to extend and retract. Arm 36 retracts into the spring and slider mounting cylinder 364. The slider 361 connected to the end of the telescopic arm moves along the outer wall of the slider guide rod 362, squeezing the slider buffer compression spring 363 to store force. At the same time, the wire gripper 37 with angled guide rotates around the connecting rod 671, and its angled end expands outward, allowing the small-diameter metal wire 5 to be sampled to enter between two opposing wire grippers 37 with angled guide, forming a frictional connection with the rolling friction wheel 38 built into the gripper. When the distance between the wire grippers 37 with angled guide expands, the connecting rod 671 drives the clamping buffer storage spring 34 and the rotating linkage block 651 connected to the rotating shaft to squeeze the rotating shaft external spring 67. The external spring 67 rebounds to generate compressive force, while the wire clamp 37 with angled guide pushes the movable collar 62 of the limiting shaft to compress and clamp the limiting rebound spring 6. The clamping limiting rebound spring 6 rebounds to apply limiting force. The dual forces initially fix the small-diameter metal wire 5 to be sampled. At the same time, the bottom of the small-diameter metal wire 5 to be sampled is in contact with the top of the built-in push plate 9 of the lifting platform, causing the push member at the bottom of the built-in push plate 9 of the lifting platform to extend into the telescopic rod 12, which is connected to the telescopic rod guide fixing seat 13. The pneumatic piston 121 at the bottom of the telescopic rod moves down along the outer wall of the piston guide fixing shaft 122 to compress the piston reset rebound spring 123. Air at the bottom of the bottom pneumatic piston 121 is forced into the pneumatic storage chamber 15 of the transmission chamber of the pneumatic transmission tube 10 through the pneumatic transmission through hole 124. The gas accumulates in the pneumatic storage chamber 15 of the transmission chamber and generates thrust, which pushes the pneumatic push rod 14 to extend. This causes the clamping linkage slide rod 3 connected to the slide rod linkage push plate 11 to move along the side slide rail groove 2 to both sides of the mounting groove 7 of the lifting platform, further clamping the small diameter metal wire 5 to be sampled. When the push plate 9 inside the lifting platform moves to the bottom of the push component stroke limit groove 41, the depth of the push component stroke limit groove 41 reaches 150mm, and the small diameter metal wire 5 to be sampled is accurately positioned.

[0036] Step 2: Cutting and Sampling After the small-diameter metal wire 5 to be sampled is positioned, the cutting tool is attached to the upper surface of the sample preparation device base 1 and cut at the position where the small-diameter metal wire 5 to be sampled is flush with the top of the sample preparation device base 1. The cut sample will remain inside the sample preparation device base 1, waiting to be taken out later.

[0037] Step 3: Reset and unload After the cutting operation is completed, push the clamping linkage slide bar 3 to one side. When the clamping linkage slide bar 3 moves outward along the side slide rail groove 2, it will simultaneously drive the slide bar linkage push plate 11 to move outward, thereby pulling the pneumatic push rod 14 back from the pneumatic storage chamber 15 of the transmission chamber of the pneumatic transmission pipe 10. During the retraction of the pneumatic push rod 14, the internal space of the pneumatic storage chamber 15 of the transmission chamber expands to form a negative pressure, causing the gas originally pressed into the pneumatic storage chamber 15 of the transmission chamber to flow back to the bottom of the pneumatic piston 121 at the bottom of the telescopic rod through the pneumatic transmission through hole 124. At the same time, the piston reset rebound spring 123, which was previously squeezed by the pneumatic piston 121 at the bottom of the telescopic rod, generates a rebound force, pushing the pneumatic piston 121 at the bottom of the telescopic rod to reset upward along the outer wall of the piston guide fixed shaft 122, thereby driving the built-in push plate 9 of the lifting platform to move upward. The built-in push plate 9 of the lifting platform pushes the wire-carrying lifting platform upward. 4. This allows the sample to extend outward from the base 1 of the sample preparation device. At the same time, it pushes out the sampled part that is stuck inside the base 1 of the sample preparation device, causing it to detach from the base 1 of the sample preparation device. On the other hand, the quick-clamping mechanism at the top of the clamping linkage slide bar 3 will clamp the remaining small-diameter metal wire 5 to be sampled and move it to one side of the base 1 of the sample preparation device. Then, it pulls the small-diameter metal wire 5 upward. The small-diameter metal wire 5 will rub against the outer wall of the rolling friction wheel 38 built into the gripper and roll along with it, quickly disengaging from the gap between the two opposing wire grippers 37 with angled guides. After the small-diameter metal wire 5 is taken out, the clamping limit rebound spring 6, the external spring 67 of the rotating shaft, the clamping buffer storage spring 34, and the slider buffer compression spring 363, which were previously squeezed, all generate a rebound force, driving their respective connected parts to reset. The device returns to its initial state and can be used for the next sample preparation operation.

[0038] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sample preparation device for testing the chemical composition of small-diameter metal wires, comprising a sample preparation device base (1), characterized in that: The sample preparation device base (1) has side slide rail grooves (2) on both sides of the top. A clamping linkage slide rod (3) is movably sleeved inside the side slide rail groove (2). A quick clamping mechanism is provided on the top of the clamping linkage slide rod (3). A wire carrying lifting platform (4) is fixedly sleeved in the middle of the sample preparation device base (1). The top of the wire carrying lifting platform (4) and the top of the small diameter metal wire (5) to be sampled are in contact with each other. The bottom of the wire carrying lifting platform (4) is fixedly connected to the side of the clamping linkage slide rod (3) through a movable part.

2. The sample preparation device for chemical composition testing of small-diameter metal wire according to claim 1, characterized in that: The quick-clamping mechanism includes a quick-clamping mechanism mounting base (31), a built-in sliding groove (32), a sliding shaft (33) built into the groove, a clamping buffer storage spring (34), a spring limiting sleeve (35), a wire clamping telescopic arm (36), and a wire clamping claw (37) with an angled guide. The quick-clamping mechanism mounting base (31) is fixedly installed on one side of the clamping linkage slide rod (3). The quick-clamping mechanism mounting base (31) has a built-in sliding groove (32) inside. The sliding shaft (33) is movably installed inside the built-in sliding groove (32), and the outer wall is also wrapped with... A clamping buffer storage spring (34) is wound around the spring. The side of the clamping buffer storage spring (34) abuts against the side of the spring limiting sleeve (35). The inside of the spring limiting sleeve (35) and the outer wall of the sliding shaft (33) built into the slide groove are movably connected. A wire clamping telescopic arm (36) is embedded in the side of the spring limiting sleeve (35). A wire clamping telescopic arm (36) with an angled guide is fixedly installed at the end of the wire clamping telescopic arm (36) away from the spring limiting sleeve (35). A longitudinally rotating clamping claw built-in rolling friction wheel (38) is movably installed inside one side of the wire clamping claw (37).

3. The sample preparation device for chemical composition testing of small-diameter metal wires according to claim 2, characterized in that: The quick-clamping mechanism also includes a clamping limit shaft (39), a clamping limit rebound spring (6), a limit shaft movable collar (62), an adapter ring (63), a slide rod end rotation mechanism mounting seat (64), a rotation mechanism built-in cavity (65), a cavity-in-place fixed shaft (66), and a rotating shaft external spring (67). The end of the clamping linkage slide rod (3) away from the quick-clamping mechanism mounting seat (31) is fixedly installed with the slide rod end rotation mechanism mounting seat (64). The slide rod end rotation mechanism mounting seat (64) has a rotation mechanism built-in cavity (65) inside. The rotation mechanism built-in cavity (65) has a cavity-in-place fixed shaft (66) fixedly installed inside. Furthermore, a rotating shaft external spring (67) is movably sleeved on the outer circumference of the cavity-mounted fixed shaft rod (66). A rotating shaft external linkage block (651) is attached to one side of the rotating shaft external spring (67). The interior of the rotating shaft external linkage block (651) and the outer wall of the cavity-mounted fixed shaft rod (66) away from the quick-clamping mechanism mounting seat (31) are movably sleeved. Both sides of the rotating shaft external linkage block (651) are fixedly installed with linkage block side connecting lugs (661). The outer wall of the linkage block side connecting lugs (661) is movably connected to the end of the wire clamping telescopic arm (36) away from the wire clamping telescopic arm (36) through a connecting rod (671).

4. The sample preparation device for chemical composition testing of small-diameter metal wires according to claim 2, characterized in that: The end of the wire clamping telescopic arm (36) away from the wire clamping claw (37) with the beveled guide is fixedly installed with a telescopic arm end connecting slider (361), and a slider guide rod (362) is movably sleeved inside the telescopic arm end connecting slider (361).

5. A sample preparation device for chemical composition testing of small-diameter metal wires according to claim 4, characterized in that: The outer wall of the slider guide rod (362) is movably sleeved with a slider buffer compression spring (363), which is fixedly installed inside the spring and slider mounting cylinder (364). The spring and slider mounting cylinder (364) are embedded in the inner wall of the spring limiting sleeve (35).

6. The sample preparation device for chemical composition testing of small-diameter metal wires according to claim 2, characterized in that: The wire clamp (37) with angled guide has an installation port on the side away from the built-in rolling friction wheel (38). An adapter ring (63) is installed inside the installation port. A clamp limiting shaft (39) is fixedly installed on the side of the adapter ring (63). A clamping limiting rebound spring (6) is movably sleeved on the outer wall of the clamp limiting shaft (39). A limiting shaft movable collar (62) is movably sleeved on the end of the clamp limiting shaft (39) near the adapter ring (63). The outer wall of the clamp limiting shaft (39) and the clamping linkage slide bar (3) are fixedly connected to the outer wall of the side of the small diameter metal wire (5) to be sampled.

7. The sample preparation device for chemical composition testing of small-diameter metal wires according to claim 1, characterized in that: The connecting components include a built-in push plate (9) for the lifting platform, a pneumatic transmission pipe (10), a sliding rod linkage push plate (11), a push member connecting telescopic rod (12), and a telescopic rod guide fixing seat (13). The top middle section of the sample preparation device base (1) is provided with a lifting platform inlay mounting groove (7). The inside of the lifting platform inlay mounting groove (7) and the outer wall of the wire carrying lifting platform (4) are inlaid and installed. The built-in push plate (9) for the lifting platform is movably installed inside the wire carrying lifting platform (4). The bottom of the built-in push plate (9) is fixedly installed with a push member connecting telescopic rod (12). The bottom of the push member connecting telescopic rod (12) is movably sleeved with a telescopic rod guide fixing seat (13). Both sides of the bottom of the telescopic rod guide fixing seat (13) are fixedly installed with pneumatic transmission pipes (10). The inside of the pneumatic transmission pipe (10) is movably sleeved with a slide rod linkage push plate (11). The outer wall of the slide rod linkage push plate (11) is fixedly connected to the outer wall of the clamping linkage slide rod (3).

8. A sample preparation device for chemical composition testing of small-diameter metal wires according to claim 7, characterized in that: The pneumatic transmission pipe (10) has a transmission cavity pneumatic storage cavity (15) inside. A pneumatic push rod (14) is movably sleeved inside the transmission cavity pneumatic storage cavity (15). The side of the pneumatic push rod (14) is fixedly connected to the side of the sliding rod linkage push plate (11).

9. A sample preparation device for chemical composition testing of small-diameter metal wires according to claim 7, characterized in that: The wire carrying lifting platform (4) has a pusher stroke limiting groove (41) inside. The bottom of the pusher connecting telescopic rod (12) is fixedly installed with a telescopic rod bottom air pressure piston (121). The telescopic rod bottom air pressure piston (121) is movably sleeved inside the telescopic rod bottom air pressure piston (121). The piston guide fixing shaft (122) is movably sleeved on the outer wall of the piston guide fixing shaft (122). The side of the piston guide fixing shaft (122) has an air pressure transmission through hole (124). The bottom of the piston guide fixing shaft (122) is fixedly installed inside the telescopic rod guide fixing seat (13). The bottom of the air pressure transmission through hole (124) and the transmission cavity air pressure storage cavity (15) opened inside the air pressure transmission pipe (10) are interconnected.

10. A sample preparation method for chemical composition testing of small-diameter metal wires according to claims 1-9, characterized in that: Includes the following steps; S1. Clamping and positioning: Place the small-diameter metal wire (5) to be sampled on the top of the wire carrying lifting platform (4). Use gravity to push the wire carrying lifting platform (4) to retract into the sample preparation device base (1). The clamping linkage slide rod (3) is moved to both sides of the small-diameter metal wire (5) to be sampled through the movable part at the bottom of the wire carrying lifting platform (4), triggering the quick clamping mechanism: the wire clamping jaws (37) with angled guides guide the small-diameter metal wire (5) to be sampled to cut into the jaws. The outer wall of the rolling friction wheel (38) is pressed, and the wire clamping claw (37) with beveled guide is squeezed, which drives the wire clamping telescopic arm (36) to retract. The slider (361) connected to the end of the telescopic arm squeezes the slider buffer compression spring (363) to store power. The wire clamping claw (37) with beveled guide rotates outward around the connecting rod (671) so that the small diameter metal wire (5) to be sampled enters between the two wire clamping claws (37) with beveled guide to form a friction connection. The spacing between the wire clamping claws (37) with beveled guide is expanded. The large extrusion shaft external spring (67) and the clamping limit rebound spring (6) use the rebound force to double fix the small diameter metal wire (5) to be sampled. At the same time, the small diameter metal wire (5) to be sampled is attached to the built-in push plate (9) of the lifting platform, which drives the push component to connect the telescopic rod (12) to extend into the telescopic rod guide fixing seat (13). The air pressure piston (121) at the bottom of the telescopic rod moves down to squeeze the piston reset rebound spring (123), and the bottom of the air pressure piston (121) at the bottom of the telescopic rod is empty. Gas is pressed into the air pressure storage chamber (15) of the transmission cavity of the air pressure transmission tube (10) through the air pressure transmission through hole (124); the gas pushes the air pressure push rod (14) to extend, and drives the clamping linkage slide rod (3) to move to both sides of the mounting groove (7) of the lifting platform for further clamping. When the built-in push plate (9) of the lifting platform moves to the bottom of the push component stroke limit groove (41), the push component stroke limit groove (41) reaches a depth of 150mm, and the small diameter metal wire (5) to be sampled is accurately positioned. S2. Cutting and sampling: After positioning the small diameter metal wire (5) to be sampled, the cutting tool is attached to the upper surface of the sample preparation device base (1) and cut at the position where the small diameter metal wire (5) to be sampled is flush with the top of the sample preparation device base (1). The sampled part is retained inside the sample preparation device base (1). S3. After the reset unloading and cutting are completed, push the clamping linkage slide bar (3) to one side, which will drive the slide bar linkage push plate (11) to pull the air pressure push rod (14) back. The air pressure storage chamber (15) of the transmission cavity forms a negative pressure, which causes the gas to flow back through the air pressure transmission through hole (124). The piston reset rebound spring (123) rebounds and pushes the air pressure piston (121) at the bottom of the telescopic rod and the built-in push plate (9) of the lifting platform to move up and lift the wire carrying lifting platform (4), and push the sample out of the sample preparation device base (1). At the same time, the clamping linkage slide bar (3) drives the quick clamping mechanism to clamp the remaining small diameter metal wire (5) to be sampled and move it to one side of the sample preparation device base (1). The small diameter metal wire (5) to be sampled is pulled upward so that it rubs and rolls against the built-in rolling friction wheel (38) of the clamping claw and then disengages. Finally, the compressed clamping limit rebound spring (6), the external spring of the rotating shaft (67), the spring limit sleeve (35), and the slider buffer compression spring (363) rebound and reset, and the device returns to its initial state for the next operation.

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