CN115856175A - Sweeping and trapping instrument for positioning, clamping and sampling - Google Patents
Sweeping and trapping instrument for positioning, clamping and sampling Download PDFInfo
- Publication number
- CN115856175A CN115856175A CN202211598520.8A CN202211598520A CN115856175A CN 115856175 A CN115856175 A CN 115856175A CN 202211598520 A CN202211598520 A CN 202211598520A CN 115856175 A CN115856175 A CN 115856175A
- Authority
- CN
- China
- Prior art keywords
- base
- sample
- trapping
- base beam
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 23
- 238000010408 sweeping Methods 0.000 title claims description 6
- 238000010926 purge Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 29
- 239000007789 gas Substances 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001926 trapping method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a purging and trapping instrument for positioning, clamping and sampling, which comprises a trapping table and a sample holder, wherein the sample holder is arranged above the trapping table, a sample clamping mechanism is arranged on the trapping table, a plurality of sample placing holes are arranged in a rectangular array on the sample holder, the sample clamping mechanism comprises a fixed base, an X-direction base beam and a Y-direction base, one end of the X-direction base beam is arranged on the fixed base in a sliding manner, the Y-direction base is arranged at the top of the X-direction base beam in a sliding manner, a plurality of first photoelectric sensors which correspond to the X-direction plurality of sample placing holes in a one-to-one manner are uniformly distributed on the fixed base along the X-direction base beam, a first receiver is arranged on the X-direction base beam, a plurality of second photoelectric sensors which correspond to the Y-direction plurality of sample placing holes in a one-to-one manner are uniformly distributed on the X-direction base beam along the Y-direction base moving direction, and a second receiver is arranged on the Y-direction base. Can fix a position and remove to target sample test tube department, can accurate centre gripping target sample test tube, improve the accuracy of centre gripping.
Description
Technical Field
The invention relates to the technical field of purging and trapping instruments, in particular to a purging and trapping instrument for positioning, clamping and sampling.
Background
Along with the development of society, various environmental protection problems are increasingly aggravated, people pay more and more high attention to the environment, and the environment protection not only concerns the living space of human beings, but also directly influences the economic development. The environmental protection work is carried out, one of the common measures usually needs to accurately take an environmental solid, liquid or gas sample, accurately extract the environmental solid, liquid or gas sample in a laboratory, then detect and analyze the extracted substances, and currently, a solid-liquid purging and trapping instrument is mostly adopted for detection and analysis;
a solid-liquid sweeping and trapping instrument is an analyzer used in the field of environmental science and technology and resource science and trapping method, which is a dynamic headspace technology theoretically, and is characterized in that volatile components in a sample are swept out by flowing gas, the swept organic matters are adsorbed by one trap, and then the sample is sent to a gas chromatograph for analysis by thermal desorption. Generally, the dynamic headspace technique is called as a purging and trapping sampling technique, a sample to be purged can be a solid sample or a liquid sample, the purging gas mostly adopts high-purity helium, an adsorbent is filled in a trap, a proper adsorbent can be selected according to the properties of a component to be analyzed, and the purging and trapping method belongs to the category of gas phase extraction. It is intraductal that the sample that awaits measuring is put into the sample test, the sample test tube is placed on the sample frame that sweeps the entrapment appearance, when drawing the target sample test tube and examining, need remove the centre gripping subassembly to target sample test tube department, take out the sample test tube through the centre gripping subassembly and put into the station that sweeps, sweep and draw in order to carry out the sample, present entrapment appearance is at the in-process of centre gripping target sample test tube, the position of unable accurate judgement target sample test tube, need the manual work to assist, its centre gripping precision is relatively poor, the material loading efficiency that leads to the target sample test tube is slow, therefore, need design the entrapment appearance of an automatic positioning centre gripping sample.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the purging and trapping instrument for positioning, clamping and sampling, which can be positioned and moved to a target sample test tube, can accurately clamp the target sample test tube, improves the clamping accuracy, and improves the feeding detection efficiency of the target sample test tube by adopting an automatic mode for positioning and clamping.
The purpose of the invention is realized by the following technical scheme: a blowing and sweeping trapping instrument capable of positioning, clamping and sampling comprises a trapping table and a sample frame, wherein the sample frame is arranged above the trapping table, a sample clamping mechanism is arranged on the trapping table, a rectangular array is arranged on the sample frame, a plurality of sample placing holes are formed in the sample frame, the sample clamping mechanism comprises a fixed base, an X-direction base beam and a Y-direction base, the fixed base is fixedly arranged on the trapping table, the X-direction base beam is arranged on the fixed base in a sliding mode towards one end of the base beam, the X-direction base beam moves along the length direction of the trapping table, the Y-direction base is arranged at the top of the X-direction base beam in a sliding mode towards the base, the Y-direction base moves along the width direction of the trapping table, a Z-direction sliding seat is arranged on the Y-direction base, the Z-direction sliding seat moves along the height direction of the trapping table, and a clamping mechanism is arranged on the Z-direction sliding seat, a plurality of first photoelectric sensors are uniformly distributed on the fixed base along the moving direction of the X-direction base beam, the number of the first photoelectric sensors is equal to the number of rows of the sample placing holes in the X direction, the plurality of first photoelectric sensors correspond to the plurality of sample placing holes in the X direction one by one, a first receiver is arranged on the X-direction base beam, the first photoelectric sensors are positioned on the moving path of the first receiver, a plurality of second photoelectric sensors are uniformly distributed on the X-direction base beam along the moving direction of the Y-direction base, the number of the second photoelectric sensors is equal to the number of rows of the sample placing holes in the Y direction, the plurality of second photoelectric sensors correspond to the plurality of sample placing holes in the Y direction one by one, a second receiver is arranged on the Y-direction base, and the second photoelectric sensors are positioned on the moving path of the second receiver, and the sample placing hole below the intersection point of the X-direction position of the first photoelectric sensor and the Y-direction position of the second photoelectric sensor is a target sample hole, and at the moment, the clamping mechanism is positioned right above the target sample hole.
In some embodiments, an X-direction sliding groove is formed in an end surface of the fixed base, which is close to the sample holder, an X-direction lead screw is arranged in the X-direction sliding groove, the X-direction lead screw is rotatably connected with the fixed base, one end of the X-direction base beam is slidably fitted in the X-direction sliding groove and in threaded connection with the X-direction lead screw, a first motor is arranged in the fixed base, and an output shaft of the first motor is in transmission connection with one end of the X-direction lead screw.
In some embodiments, a plurality of X-direction mechanical limits are arranged in the X-direction sliding groove along the moving direction of the X-direction base beam, the X-direction mechanical limits correspond to the first photoelectric sensors one by one, each X-direction mechanical limit includes a limit rod, a limit groove for accommodating the limit rod is formed in the fixed base, the moving direction of the limit rod is perpendicular to the moving direction of the X-direction base beam, a first electromagnet is arranged in the limit groove, a first magnetic sheet is arranged at one end of the limit rod close to the first electromagnet, a first reset spring is arranged between the first magnetic sheet and the first electromagnet, two ends of the first reset spring are respectively connected with the limit rod and the fixed base, the first electrified electromagnet generates a magnetic pole the same as the first magnetic sheet, and when a first photoelectric sensor responds, the first electromagnet corresponding to the first photoelectric sensor responds synchronously, so that the limit rod is ejected to abut against the X-direction base beam.
In some embodiments, a Y-direction sliding groove is formed in the top of the X-direction base beam, a Y-direction lead screw is arranged in the Y-direction sliding groove, the Y-direction lead screw is rotatably connected with the X-direction base beam, and the Y-direction base is slidably fitted in the Y-direction sliding groove and is in threaded connection with the Y-direction lead screw.
In some embodiments, a second motor is arranged in the X-direction machine base beam, and an output shaft of the second motor is in transmission connection with one end of the Y-direction lead screw.
In some embodiments, a plurality of Y-direction mechanical limits are arranged in the X-direction base beam, the Y-direction mechanical limits are uniformly distributed along the axial direction of the Y-direction lead screw, the Y-direction mechanical limits correspond to the second photoelectric sensors one to one, the Y-direction mechanical limits include Y-direction limit rods, mounting holes are formed in the X-direction base beam, the Y-direction limit rods are slidably arranged in the mounting holes, and when one of the second photoelectric sensors responds, the Y-direction limit rods corresponding to the second photoelectric sensors extend out of the mounting holes to limit the Y-direction base to move.
In some embodiments, a second electromagnet is arranged in the mounting hole, a second magnetic sheet is arranged at one end, close to the second electromagnet, of the Y-direction limiting rod, the second electromagnet is electrified to repel the second magnetic sheet, a second return spring is sleeved on the Y-direction limiting rod, and two ends of the second return spring are respectively connected with the Y-direction limiting rod and the X-direction base beam.
In some embodiments, a driving cavity is arranged in the Y-direction base, a rodless cylinder is vertically arranged in the driving cavity, a Z-direction chute is vertically formed in the Y-direction base, the Z-direction chute is communicated with the driving cavity, and the Z-direction sliding seat is connected with a sliding seat of the rodless cylinder through a connecting column.
In some embodiments, the fixture includes finger cylinder and spacing cap, finger cylinder perpendicular to Z is to the slide, the cylinder body of finger cylinder is installed on the Z is to the slide, spacing cap is located the top of finger cylinder, the lateral wall of spacing cap passes through the connecting rod and connects the cylinder body of finger cylinder, the interior top of spacing cap inlays and is equipped with pressure sensor.
In some embodiments, the inner wall of the limiting cap is provided with a conical rubber sleeve, and the small-diameter end of the conical rubber sleeve is arranged close to the pressure sensor.
The invention has the beneficial effects that:
1. the sample placing holes are arranged on the sample rack in a rectangular array, each sample placing hole is enabled to have X-direction and Y-direction coordinates on the sample rack, each sample placing hole corresponds to one of the first photoelectric sensor and the second photoelectric sensor, the positions of the sample placing holes are located through the combination of the first photoelectric sensor and the second photoelectric sensor, after the coordinate position of a sample test tube to be detected is input, the corresponding first photoelectric sensor and the second photoelectric sensor respond, after the first receiver receives a signal sent by the first photoelectric sensor, the X-direction machine base beam stops moving, after the second receiver receives a signal sent by the second photoelectric sensor, the Y-direction machine base stops moving, after the process is completed, the clamping mechanism is located right above the target sample test tube, the position of the target sample test tube can be automatically and quickly located, and the device has the advantages of being high in positioning accuracy, high in response speed and stable in clamping.
2. Every first photoelectric sensor all corresponds and is provided with X to mechanical spacing, every second photoelectric sensor all corresponds and is provided with Y to mechanical spacing, after one of them first photoelectric sensor response, the X that corresponds with it is to mechanical spacing start, block X through the gag lever post that stretches out and remove to the frame roof beam, thereby overcome X to the movement error and the inertial error of frame roof beam, equally, after one of them second photoelectric sensor response, the Y that corresponds with it is to mechanical spacing start, block Y through the Y that stretches out and remove to the frame to the gag lever post, thereby overcome Y to the movement error and the inertial error of frame, further improve positioning accuracy, guarantee the accuracy and the speed of centre gripping.
Drawings
FIG. 1 is a perspective view of a purging and trapping instrument for positioning, clamping and sampling according to the present invention;
FIG. 2 is a front view of a purge trap instrument for positioning, clamping and sampling in accordance with the present invention;
FIG. 3 is a top view of a sample-positioning and clamping purging trap according to the present invention;
FIG. 4 is a schematic diagram of the internal structure of a fixing base in the purging and trapping instrument for positioning, clamping and sampling according to the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is a schematic view of the internal structure of an X-direction machine base beam in the purging and trapping instrument for positioning, clamping and sampling according to the present invention;
FIG. 7 is an enlarged view taken at A in FIG. 6;
FIG. 8 shows a purge with positioning, clamping and sampling according to the present invention the inner structure schematic diagram of a limiting cap in the trapping instrument;
in the figure, 1-a trapping table, 2-a sample rack, 3-a sample placing hole, 4-a fixed base, 5-an X-direction base beam, 6-a Y-direction base, 7-a Z-direction sliding base, 8-a first photoelectric sensor, 9-a second photoelectric sensor, 10-an X-direction sliding groove, 11-an X-direction lead screw, 12-a first motor, 13-a limiting rod, 14-a limiting groove, 15-a first electromagnet, 16-a first magnetic sheet, 17-a first reset spring, 18-a Y-direction sliding groove, 19-a Y-direction lead screw, 20-a second motor, 21-a Y-direction limiting rod, 22-a second electromagnet, 23-a second magnetic sheet, 24-a second reset spring, 25-a Z-direction sliding groove, 26-a finger cylinder, 27-a limiting cap, 28-a pressure sensor and 29-a conical rubber sleeve.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in figures 1 to 7, a purging and trapping instrument for positioning, clamping and sampling comprises a trapping table 1 and a sample holder 2, wherein the sample holder 2 is arranged above the trapping table 1, a sample clamping mechanism is arranged on the trapping table 1, a plurality of sample placing holes 3 are arranged on the sample holder 2 in a rectangular array, the plurality of sample placing holes 3 are arranged in a rectangular array, the length direction of the trapping table 1 is taken as an X coordinate direction, the width direction of the trapping table 1 is taken as a Y coordinate direction, the height direction of the trapping table 1 is taken as a Z coordinate direction, the sample clamping mechanism comprises a fixed base 4, an X-direction base beam 5 and a Y-direction base 6, the fixed base 4 is fixedly arranged on the trapping table 1, one end of the X-direction base beam 5 is arranged on the fixed base 4 in a sliding manner, the X-direction base beam 5 moves along the length direction of the trapping table 1, the Y-direction base 6 is arranged on the top of the X-direction base beam 5 in a sliding manner, and the Y-direction base 6 moves along the width direction of the trapping table 1, a Z-direction sliding seat 7 is arranged on the Y-direction base 6, the Z-direction sliding seat 7 moves along the height direction of the trapping table 1, a clamping mechanism is arranged on the Z-direction sliding seat 7, a plurality of first photoelectric sensors 8 are uniformly distributed on the fixed base 4 along the moving direction of the X-direction base beam 5, the number of the first photoelectric sensors 8 is equal to the number of the rows of the sample placing holes 3 in the X direction, the plurality of first photoelectric sensors 8 correspond to the plurality of the sample placing holes 3 in the X direction one by one, a first receiver is arranged on the X-direction base beam 5, the first photoelectric sensors 8 are positioned on the moving path of the first receiver, a plurality of second photoelectric sensors 9 are uniformly distributed on the X-direction base beam 5 along the moving direction of the Y-direction base 6, the number of the second photoelectric sensors 9 is equal to the number of the rows of the sample placing holes 3 in the Y direction, and the plurality of the second photoelectric sensors 9 correspond to the plurality of the sample placing holes 3 in the Y direction one by one, a second receiver is arranged on the Y-direction base 6, a second photoelectric sensor 9 is positioned on the moving path of the second receiver, the sample placing hole 3 under the intersection point of the X-direction position of the first photoelectric sensor 8 responding to the second photoelectric sensor 9 responding to the second photoelectric sensor is a target sample hole, at the moment, the clamping mechanism is positioned right above the target sample hole, the X-direction coordinate and the Y-direction coordinate of each sample placing hole 3 are recorded in the system, so that the coordinate position of each sample placing hole 3 in a plane rectangular coordinate system is accurately positioned, each sample placing hole 3 corresponds to one first photoelectric sensor 8 and one second photoelectric sensor 9, the position of the sample placing hole 3 is positioned by combining the first photoelectric sensor 8 and the second photoelectric sensor 9, and after the coordinate position of the sample test tube to be detected is input, the first photoelectric sensor 8 and the second photoelectric sensor 9 corresponding to the sample test tube respond, when the first receiver receives a signal sent by the first photoelectric sensor 8, the X-direction machine base beam 5 stops moving, when the second receiver receives a signal sent by the second photoelectric sensor 9, the Y-direction machine base 6 stops moving, after the process is finished, the clamping mechanism is positioned right above the target sample test tube, so that the position of the target sample test tube can be automatically and quickly positioned, the clamping mechanism has the advantages of high positioning precision, high response speed and stable clamping, the sample test tube is placed in the sample placing hole 3, after the position of the sample placing hole 3 is determined, the position of the sample test tube in the sample placing hole is also determined, so that the position of the target sample test tube is accurately and quickly positioned, after the positioning is finished, the Z-direction sliding seat drives the clamping mechanism to downwards move along the Z-axis direction, and the clamping mechanism takes the target sample test tube out of the sample placing hole 3, and finally, transferring the target sample test tube to a purging detection station of the purging and trapping instrument by matching with the movement of the X-direction base amount 5 and the Y-direction base amount 6.
In some embodiments, as shown in fig. 4 and 5, an X-direction chute 10 is formed in an end surface of the fixed base 4 close to the sample holder 2, an X-direction lead screw 11 is disposed in the X-direction chute 10, the X-direction lead screw 11 is rotatably connected to the fixed base 4, one end of the X-direction base beam 5 is slidably fitted in the X-direction chute 10 and is in threaded connection with the X-direction lead screw 11, a first motor 12 is disposed in the fixed base 4, an output shaft of the first motor 12 is in transmission connection with one end of the X-direction lead screw 11, when a response is made by the first photoelectric sensor 8, the first motor 12 is started, the first motor 12 drives the X-direction lead screw 11 to rotate, so that the X-direction base beam 5 slides on the X-direction lead screw 11, thereby performing positioning in the X-coordinate direction, and when the first receiver receives a signal sent by the first photoelectric sensor 8, the first motor 12 is turned off, thereby completing positioning in the X-direction coordinate; because the first motor 12 is turned off, the first motor 12 continues to rotate under the action of inertia, so that an inertial error exists in the actual movement of the X-direction base beam 5, and similarly, the X-direction base beam 5 has a movement error under the influence of friction and the external environment, the errors are mutually superposed to amplify the errors, and because the errors are uncontrollable in each movement, the errors in each X-direction base beam 5 are different, so that the errors cannot be eliminated in advance, therefore, an X-direction mechanical limit is arranged in the fixed base 4, the movement error and the inertial error of the X-direction base beam 5 are eliminated through the X-direction mechanical limit, specifically, a plurality of X-direction mechanical limits are arranged in the X-direction chute 10 along the movement direction of the X-direction base beam 5, the X-direction mechanical limits correspond to the first photoelectric sensors 8 one by one, the X-direction mechanical limit comprises a limit rod 13, a limiting groove 14 for accommodating a limiting rod 13 is formed in the fixed base 4, the moving direction of the limiting rod 13 is perpendicular to the moving direction of the X-direction base beam 5, a first electromagnet 15 is arranged in the limiting groove 14, one end of the limiting rod 13, which is close to the first electromagnet 15, is provided with a first magnetic sheet 16, a first reset spring 17 is arranged between the first magnetic sheet 16 and the first electromagnet 15, two ends of the first reset spring 17 are respectively connected with the limiting rod 13 and the fixed base 4, the first electromagnet 15 is electrified to generate a magnetic pole which is the same as that of the first magnetic sheet 16, when a first photoelectric sensor 8 responds, the first electromagnet 15 corresponding to the first photoelectric sensor 8 responds synchronously and is used for ejecting the limiting rod 13 to abut against the X-direction base beam 5, each first photoelectric sensor 8 is correspondingly provided with X-direction mechanical limiting, when one first photoelectric sensor 8 responds, the corresponding X-direction mechanical limit is started, namely the first electromagnet 15 corresponding to the first photoelectric sensor 8 is electrified, and repels the first magnetic sheet 16 through the first electromagnet 15, so that the limiting rod 13 is moved out of the limiting groove 14, the limiting rod 13 is positioned on the moving path of the X-direction base beam 5, so that the X-direction base beam 5 is blocked by the limiting rod 13 to continuously move, the inertia rotating force of the first motor 12 after the stop is released, and the positioning precision of the X-direction base beam 5 in the X coordinate direction is improved.
Further, as shown in fig. 6 and 7, a Y-direction chute 18 is formed at the top of the X-direction base beam 5, a Y-direction lead screw 19 is arranged in the Y-direction chute 18, the Y-direction lead screw 19 is rotatably connected with the X-direction base beam 5, the Y-direction base 6 is slidably fitted in the Y-direction chute 18 and is threadedly connected to the Y-direction lead screw 19, a second motor 20 is arranged in the X-direction base beam 5, an output shaft of the second motor 20 is in transmission connection with one end of the Y-direction lead screw 19, when a response is made by the second photoelectric sensor 9, the second motor 20 is started, the second motor 20 drives the Y-direction lead screw 19 to rotate, so that the Y-direction base 6 slides on the Y-direction lead screw 19 to perform positioning in the Y-coordinate direction, and when the second receiver receives a signal sent by the second photoelectric sensor 9, the second motor 20 is turned off, so that positioning in the Y-direction coordinate is completed; a plurality of Y-direction mechanical limits are arranged in the X-direction base beam 5 and are uniformly distributed along the axial direction of the Y-direction lead screw 19, the Y-direction mechanical limits correspond to a plurality of second photoelectric sensors 9 one by one, the Y-direction mechanical limits comprise Y-direction limiting rods 21, mounting holes are formed in the X-direction base beam 5, the Y-direction limiting rods 21 are arranged in the mounting holes in a sliding mode, when one of the second photoelectric sensors 9 responds, the Y-direction limiting rods 21 corresponding to the second photoelectric sensors 9 extend out of the mounting holes to limit the movement of the Y-direction base 6, second electromagnets 22 are arranged in the mounting holes, one ends, close to the second electromagnets 22, of the Y-direction limiting rods 21 are provided with second magnetic sheets 23, the second electromagnets 22 electrically repel the second magnetic sheets 23, second reset springs 24 are sleeved on the Y-direction limiting rods 21, two ends of the second reset springs 24 are respectively connected with the Y-direction limiting rods 21 and the X-direction base beam 5, and the same as the above, the moving error and the inertia error of the Y-direction base 6 are eliminated through Y-direction mechanical limit, specifically, each second photoelectric sensor 9 is correspondingly provided with Y-direction mechanical limit, when one second photoelectric sensor 9 responds, the corresponding Y-direction mechanical limit is started, namely, the second electromagnet 22 corresponding to the second photoelectric sensor 9 is electrified, the second electromagnet 22 repels the second magnetic sheet 23, so that the Y-direction limiting rod 21 is moved out of the mounting hole, the Y-direction limiting rod 21 is positioned on the moving path of the Y-direction base 6, so that the Y-direction limiting rod 21 blocks the Y-direction base 6 to continuously move, the inertia rotating force of the second motor 12 after being stopped is released, the positioning precision of the Y-direction base 6 in the Y coordinate direction is improved, when the Y-direction positioning is completed, the second electromagnet 22 is powered off, the Y-direction limiting rod 21 is reset into the mounting hole again under the reaction force of the second reset spring 24, and the automatic reset of the Y-direction mechanical limit is realized. During specific implementation, the X-direction base beam 5 and the Y-direction base 6 need to move accurately, so that the driving mode of the screw-nut pair is adopted, the movement precision is high, and the accurate positioning of the target sample test tube can be realized.
In some embodiments, as shown in fig. 8, a driving cavity is arranged in the Y-direction base 6, a rodless cylinder is vertically arranged in the driving cavity, a Z-direction sliding slot 25 is vertically formed in the Y-direction base 6, the Z-direction sliding slot 25 is communicated with the driving cavity, the Z-direction sliding slot 7 is connected with a sliding seat of the rodless cylinder through a connecting column, the clamping mechanism comprises a finger cylinder 26 and a limiting cap 27, the finger cylinder 26 is perpendicular to the Z-direction sliding seat 7, a cylinder body of the finger cylinder 26 is mounted on the Z-direction sliding seat 7, the limiting cap 27 is located above the finger cylinder 26, a side wall of the limiting cap 27 is connected with the cylinder body of the finger cylinder 26 through a connecting rod, a pressure sensor 28 is embedded in the inner top of the limiting cap 27, the Z-direction sliding seat 7 is driven by the extension and retraction of the rodless cylinder to move up and down the finger cylinder 26, so that the target sample test tube is located between two clamping jaws of the finger cylinder 26, the head of the target test tube is located in the limiting cap 27, and finally the finger cylinder 26 acts to clamp the target sample test tube, so as to improve the clamping strength of the sample; the pressure sensor 28 judges whether the head of the target sample tube enters the limiting cap 27 or not, controls the contact strength of the sample tube and the limiting cap 27, and the finger cylinder 26 acts after the pressure sensor 28 responds.
Further, as shown in fig. 8, a conical rubber sleeve 29 is arranged on the inner wall of the limiting cap 27, the small diameter end of the conical rubber sleeve 29 is arranged close to the pressure sensor 28, and the conical rubber sleeve 29 compensates for the placement error of the sample tube, so that the head of the sample tube can accurately penetrate into the conical rubber sleeve 29.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; and those skilled in the art will recognize that the benefits of the present invention are to be achieved only in certain circumstances, and not directly to the best use in the industry, as compared to current implementations in the prior art.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A blowing and sweeping trapping instrument for positioning, clamping and sampling comprises a trapping table (1) and a sample frame (2), wherein the sample frame (2) is arranged above the trapping table (1), a sample clamping mechanism is arranged on the trapping table (1), the blowing and sweeping trapping instrument is characterized in that a plurality of sample placing holes (3) are formed in a rectangular array on the sample frame (2), the sample clamping mechanism comprises a fixed base (4), an X-direction base beam (5) and a Y-direction base (6), the fixed base (4) is fixedly arranged on the trapping table (1), the X-direction base beam (5) is slidably arranged on the fixed base (4) at one end, the X-direction base beam (5) moves along the length direction of the trapping table (1), the Y-direction base (6) is slidably arranged at the top of the X-direction base beam (5), the Y-direction base (6) moves along the width direction of the trapping table (1), the Y-direction base (6) is provided with a Z-direction slide base (7), the Z-direction base (7) moves along the column direction of the trapping table (1), a plurality of sample placing holes (8) are uniformly arranged on the X-direction base beam (5), and a plurality of sensors (8) are uniformly arranged on the X-direction base beam (6), the plurality of first photoelectric sensors (8) correspond to the plurality of sample placing holes (3) in the X direction one by one, a first receiver is arranged on the X-direction base beam (5), the first photoelectric sensors (8) are located on the moving path of the first receiver, a plurality of second photoelectric sensors (9) are uniformly distributed on the X-direction base beam (5) along the moving direction of the Y-direction base (6), the number of the second photoelectric sensors (9) is equal to the number of columns of the sample placing holes (3) in the Y direction, the plurality of second photoelectric sensors (9) correspond to the plurality of sample placing holes (3) in the Y direction one by one, a second receiver is arranged on the Y-direction base (6), the second photoelectric sensors (9) are located on the moving path of the second receiver, the sample placing holes (3) below the intersection point of the X-direction position of the first photoelectric sensor (8) and the Y-direction position of the second photoelectric sensor (9) are responded, and the sample placing holes are located above the target sample clamping mechanism.
2. The purging and trapping instrument for positioning, clamping and sampling according to claim 1, characterized in that an X-direction chute (10) is formed in an end surface of the fixed base (4) close to the sample holder (2), an X-direction lead screw (11) is arranged in the X-direction chute (10), the X-direction lead screw (11) is rotatably connected with the fixed base (4), one end of the X-direction base beam (5) is slidably fitted in the X-direction chute (10) and is in threaded connection with the X-direction lead screw (11), a first motor (12) is arranged in the fixed base (4), and an output shaft of the first motor (12) is in transmission connection with one end of the X-direction lead screw (11).
3. A sweep trap instrument for positioning and clamping sampling according to claim 2, a plurality of X-direction mechanical limits are arranged in the X-direction sliding groove (10) along the moving direction of the X-direction base beam (5), the X-direction mechanical limits are in one-to-one correspondence with the first photoelectric sensors (8), the X-direction mechanical limit comprises a limit rod (13), a limit groove (14) for accommodating the limit rod (13) is formed on the fixed base (4), the moving direction of the limiting rod (13) is vertical to the moving direction of the X-direction machine base beam (5), a first electromagnet (15) is arranged in the limit groove (14), one end of the limiting rod (13) close to the first electromagnet (15) is provided with a first magnetic sheet (16), a first return spring (17) is arranged between the first magnetic sheet (16) and the first electromagnet (15), two ends of the first return spring (17) are respectively connected with the limiting rod (13) and the fixed machine base (4), the first electromagnet (15) is electrified to generate a magnetic pole which is the same as that of the first magnetic sheet (16), when one first photoelectric sensor (8) responds, the first electromagnet (15) corresponding to the first photoelectric sensor (8) responds synchronously, the limiting rod (13) is used for popping up and propping against the X-direction machine base beam (5).
4. The purging and trapping instrument for positioning, clamping and sampling according to claim 3, wherein a Y-direction sliding groove (18) is formed in the top of the X-direction base beam (5), a Y-direction lead screw (19) is arranged in the Y-direction sliding groove (18), the Y-direction lead screw (19) is rotatably connected with the X-direction base beam (5), and the Y-direction base (6) is slidably fitted in the Y-direction sliding groove (18) and is in threaded connection with the Y-direction lead screw (19).
5. A blowing and trapping instrument with positioning, clamping and sampling functions as claimed in claim 4, characterized in that a second motor (20) is arranged in the X-direction base beam (5), and an output shaft of the second motor (20) is in transmission connection with one end of the Y-direction lead screw (19).
6. The purging and trapping instrument for positioning, clamping and sampling according to claim 5, wherein a plurality of Y-direction mechanical limits are arranged in the X-direction machine base beam (5), the Y-direction mechanical limits are uniformly distributed along the axial direction of the Y-direction lead screw (19), the Y-direction mechanical limits correspond to the second photoelectric sensors (9) one by one, the Y-direction mechanical limits comprise Y-direction limit rods (21), a mounting hole is formed in the X-direction machine base beam (5), the Y-direction limit rods (21) are slidably arranged in the mounting hole, and when one of the second photoelectric sensors (9) responds, the Y-direction limit rods (21) corresponding to the second photoelectric sensors (9) extend out of the mounting hole to limit the movement of the Y-direction machine base (6).
7. The purging and trapping instrument for positioning, clamping and sampling as claimed in claim 6, wherein a second electromagnet (22) is arranged in the mounting hole, a second magnetic sheet (23) is arranged at one end of the Y-direction limiting rod (21) close to the second electromagnet (22), the second electromagnet (22) is electrically repelled by the second magnetic sheet (23), a second return spring (24) is sleeved on the Y-direction limiting rod (21), and two ends of the second return spring (24) are respectively connected with the Y-direction limiting rod (21) and the X-direction base beam (5).
8. The purging and trapping instrument with the positioning, clamping and sampling functions as claimed in claim 1, wherein a driving cavity is arranged in the Y-direction base (6), a rodless cylinder is vertically arranged in the driving cavity, a Z-direction sliding groove (25) is vertically formed in the Y-direction base (6), the Z-direction sliding groove (25) is communicated with the driving cavity, and the Z-direction sliding seat (7) is connected with a sliding seat of the rodless cylinder through a connecting column.
9. A blowing and trapping instrument for positioning and clamping sampling according to claim 8, characterized in that the clamping mechanism comprises a finger cylinder (26) and a limiting cap (27), the finger cylinder (26) is perpendicular to the Z-direction slide (7), the cylinder body of the finger cylinder (26) is installed on the Z-direction slide (7), the limiting cap (27) is located above the finger cylinder (26), the side wall of the limiting cap (27) is connected with the cylinder body of the finger cylinder (26) through a connecting rod, and a pressure sensor (28) is embedded in the top of the limiting cap (27).
10. A blowing and trapping instrument with positioning and clamping sampling function according to claim 9, characterized in that the inner wall of the limiting cap (27) is provided with a conical rubber sleeve (29), and the small diameter end of the conical rubber sleeve (29) is arranged close to the pressure sensor (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598520.8A CN115856175A (en) | 2022-12-12 | 2022-12-12 | Sweeping and trapping instrument for positioning, clamping and sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598520.8A CN115856175A (en) | 2022-12-12 | 2022-12-12 | Sweeping and trapping instrument for positioning, clamping and sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115856175A true CN115856175A (en) | 2023-03-28 |
Family
ID=85672527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211598520.8A Pending CN115856175A (en) | 2022-12-12 | 2022-12-12 | Sweeping and trapping instrument for positioning, clamping and sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115856175A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710750A (en) * | 2009-12-18 | 2010-05-19 | 无锡索立得机械设计制造有限公司 | Stroke-correction transverse transmission mechanism of stretch yarn machine |
| CN107030772A (en) * | 2017-04-08 | 2017-08-11 | 泉州泉港润美环保科技有限公司 | A kind of paper tube cutting machine with automatic changing blade function |
| CN109649931A (en) * | 2019-02-14 | 2019-04-19 | 江苏贺鸿电子有限公司 | A kind of automatic identification counting apparatus |
| CN111156218A (en) * | 2020-02-29 | 2020-05-15 | 杭州师范大学钱江学院 | Cam type multi-stable-state reversing valve and working position switching method thereof |
| CN111358279A (en) * | 2020-04-18 | 2020-07-03 | 上海涵夏智能设备有限公司 | Intelligent cooker |
| CN113033751A (en) * | 2021-04-02 | 2021-06-25 | 南京工业职业技术大学 | Novel USB flash disk is used in electronic material evidence preservation |
| CN113894784A (en) * | 2021-10-14 | 2022-01-07 | 南京继海电子信息科技有限公司 | Industrial robot calibration device and calibration method |
| CN215678392U (en) * | 2021-09-22 | 2022-01-28 | 山东德环检测技术有限公司 | Full-automatic solid-liquid purging and trapping instrument for soil detection |
| CN217878591U (en) * | 2022-07-05 | 2022-11-22 | 常州磐宇仪器有限公司 | Sweeping and trapping device for Vocs sampling in water |
-
2022
- 2022-12-12 CN CN202211598520.8A patent/CN115856175A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710750A (en) * | 2009-12-18 | 2010-05-19 | 无锡索立得机械设计制造有限公司 | Stroke-correction transverse transmission mechanism of stretch yarn machine |
| CN107030772A (en) * | 2017-04-08 | 2017-08-11 | 泉州泉港润美环保科技有限公司 | A kind of paper tube cutting machine with automatic changing blade function |
| CN109649931A (en) * | 2019-02-14 | 2019-04-19 | 江苏贺鸿电子有限公司 | A kind of automatic identification counting apparatus |
| CN111156218A (en) * | 2020-02-29 | 2020-05-15 | 杭州师范大学钱江学院 | Cam type multi-stable-state reversing valve and working position switching method thereof |
| CN111358279A (en) * | 2020-04-18 | 2020-07-03 | 上海涵夏智能设备有限公司 | Intelligent cooker |
| CN113033751A (en) * | 2021-04-02 | 2021-06-25 | 南京工业职业技术大学 | Novel USB flash disk is used in electronic material evidence preservation |
| CN215678392U (en) * | 2021-09-22 | 2022-01-28 | 山东德环检测技术有限公司 | Full-automatic solid-liquid purging and trapping instrument for soil detection |
| CN113894784A (en) * | 2021-10-14 | 2022-01-07 | 南京继海电子信息科技有限公司 | Industrial robot calibration device and calibration method |
| CN217878591U (en) * | 2022-07-05 | 2022-11-22 | 常州磐宇仪器有限公司 | Sweeping and trapping device for Vocs sampling in water |
Non-Patent Citations (1)
| Title |
|---|
| 黄建裕: "《新能源汽车驱动电机及控制技术》", 28 February 2021, 哈尔滨：哈尔滨工程大学出版社, pages: 61 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1924835B1 (en) | Automatic solid phase microextraction (spme) sampling apparatus | |
| US6732598B2 (en) | Automatic pipettor with a single-row, multi-channel pipetting head | |
| JP6616090B2 (en) | Equipment for solid-phase microextraction | |
| CN106960777B (en) | Mass spectrometry system and its working method | |
| JPH0320707B2 (en) | ||
| JP2011089934A (en) | Heat insulating apparatus | |
| WO2021179001A1 (en) | Autosampler | |
| JP2005518530A (en) | Device and method for automating the transfer of multiple samples to an analytical instrument | |
| JP3704570B2 (en) | Chucking device and sample inspection device provided with the same | |
| US9150983B1 (en) | Automated dried blood spot system and method | |
| Pawliszyn | Solid phase microextraction | |
| JP2003502659A (en) | Apparatus and method for high resolution separation and analysis of compounds | |
| CN115856175A (en) | Sweeping and trapping instrument for positioning, clamping and sampling | |
| CN103472163A (en) | Automatic sample injector having bottle pressing function and liquid chromatograph | |
| CN117269388A (en) | Automatic sample injection device and method for gas chromatograph mass spectrometer | |
| CN218890164U (en) | Solid phase microextraction instrument | |
| CN206441693U (en) | Mass spectrometry system | |
| CN217443372U (en) | Full-automatic sample adding system and trace sample adding device thereof | |
| CN113083743B (en) | Full-automatic detection device and detection method for radioactive source | |
| CN109406653A (en) | A kind of chromatograph of automatic sample | |
| CN211179873U (en) | Liquid transfer mechanism of automatic enzyme-linked immunoassay analyzer | |
| CN206742192U (en) | A kind of sample injection apparatus for mass spectrographs of good airproof performance | |
| CN220752016U (en) | Biological mass spectrum imaging sampling device | |
| CN220752017U (en) | Three-dimensional biological mass spectrum imaging sampling device of probe electrospray ion source | |
| CN112697991A (en) | Detection equipment for volatile organic compounds in water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |