CN211826104U - Application of sample arm - Google Patents
Application of sample arm Download PDFInfo
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- CN211826104U CN211826104U CN202020436110.3U CN202020436110U CN211826104U CN 211826104 U CN211826104 U CN 211826104U CN 202020436110 U CN202020436110 U CN 202020436110U CN 211826104 U CN211826104 U CN 211826104U
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- axis
- rack
- gear
- linear bearing
- axis driving
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- 230000033001 locomotion Effects 0.000 claims abstract description 29
- 230000001360 synchronised effect Effects 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000002558 medical inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of mechanical arms, in particular to a sample adding arm, which comprises a frame, a Y-axis motion mechanism and a Z-axis motion mechanism, wherein the Y-axis motion mechanism and the Z-axis motion mechanism are arranged on the frame; the tooth holder is connected with the Y-axis motion mechanism in a sliding manner; the linear bearing is vertically arranged in the tooth holder, and two ends of the linear bearing extend out; the rack is arranged in the linear bearing in a sliding manner, an arc-shaped groove is formed in the tooth holder of the linear bearing, and the gear is meshed with the rack in the arc-shaped groove. The utility model provides a pair of application of sample arm, simple structure, the direction is effectual.
Description
Technical Field
The utility model belongs to the technical field of the arm technique and specifically relates to a application of sample arm is related to.
Background
At present, a plurality of medical inspection institutions all adopt a full-automatic sample processing system to detect samples, and a sample adding arm flexibly moves on an X axis, a Y axis and a Z axis according to needs.
The utility model with publication number CN207841333U and application date 2018.02.11 provides a two-dimensional linear light motion module, wherein a Z-axis servo motor is connected with a Z-axis driving synchronous pulley to drive the Z-axis driving synchronous pulley to rotate and is driven to a Z-axis driven synchronous pulley through a synchronous belt, and the Z-axis driven synchronous pulley is fixed in an X-axis box body through a synchronous pulley fixed bearing and connected with a spline shaft to drive the spline shaft to rotate; z axle drive gear is connected to the integral key shaft front end, and Z axle drive gear is rotatory to drive Z axle circular rack and slides on Z axle circular rack copper sheathing, and then drives the hand claw mounting bracket and be elevating movement, is Z direction motion direction through Z axle sharp optical axis and Z axle sharp optical axis copper sheathing module structure.
The biggest problem of above-mentioned prior art scheme lies in that the direction effect of Z axle circular rack copper sheathing is general, need do Z direction motion direction through Z axle straight line optical axis and Z axle straight line optical axis copper sheathing module structure, and its guide structure is comparatively complicated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a application of sample arm, simple structure, the direction is effectual.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a sample adding arm comprises a rack, a Y-axis movement mechanism and a Z-axis movement mechanism, wherein the Y-axis movement mechanism and the Z-axis movement mechanism are arranged on the rack;
the tooth holder is connected with the Y-axis motion mechanism in a sliding manner; the linear bearing is vertically arranged in the tooth holder, and two ends of the linear bearing extend out; the rack is arranged in the linear bearing in a sliding manner, an arc-shaped groove is formed in the tooth holder of the linear bearing, and the gear is meshed with the rack in the arc-shaped groove.
By adopting the technical scheme, the upper end and the lower end of the linear bearing extend out of the tooth holder, so that the guiding length, namely the lead, is ensured to be long enough, and the guiding precision of the rack is improved; the part of the linear bearing located in the tooth holder is provided with an arc-shaped groove, the rack is exposed at the arc-shaped groove, the gear is arranged in the arc-shaped groove and meshed with the rack, the meshed part of the gear and the rack is located in the linear bearing, the linear bearing effectively offsets the lateral force applied by the gear to the rack, and the stability of the rack in moving in the vertical direction is ensured.
The present invention may be further configured in a preferred embodiment as: the inner wall of the linear bearing is provided with a sliding block protruding inwards, the outer wall of the rack is provided with a guide groove in the vertical direction, and the sliding block is inserted into the guide groove.
Through adopting above-mentioned technical scheme, rack cartridge is in linear bearing, and in the slider inserted guide slot, realizes rack and linear bearing's sliding connection.
The present invention may be further configured in a preferred embodiment as: the Z-axis driving assembly comprises a Z-axis driving motor, a coupler and a square shaft, wherein one end of the coupler is connected with a main shaft of the Z-axis driving motor, and the other end of the coupler is connected with the square shaft;
the square shaft penetrates through the inner edge of the gear to drive the gear to rotate.
Through adopting above-mentioned technical scheme, the square shaft passes the square inner edge of gear in the horizontal direction, realizes that the transmission of square shaft and gear is connected, drives the square shaft rotation through Z axle driving motor to it is rotatory to drive the gear, and then the gear and rack meshing transmission realize going up and down.
The present invention may be further configured in a preferred embodiment as: a bearing is arranged on the tooth holder;
and a shaft body is arranged in the axial direction of the gear, and the shaft body is rotationally connected with the bearing.
Through adopting above-mentioned technical scheme, the axis body at gear both ends respectively with bearing inner race interference fit, guarantee the rotational stability of gear.
The present invention may be further configured in a preferred embodiment as: the Y-axis movement mechanism comprises a Y-axis driving assembly, a guide rail arranged on the rack, a Y-axis sliding block and a Y-axis connecting plate, and the Y-axis sliding block is connected with the guide rail in a sliding manner;
one side of the Y-axis connecting plate is connected with the Y-axis sliding block, and the other side of the Y-axis connecting plate is connected with the tooth holder; the Y-axis connecting plate is connected with the Y-axis driving assembly.
Through adopting above-mentioned technical scheme, drive the hold-in range gyration through Y axle driving motor to the Y axle connecting plate that drives and hold-in range and be connected slides along the guide rail.
The present invention may be further configured in a preferred embodiment as: the Y-axis driving assembly comprises a Y-axis driving motor, a synchronous belt pulley and a driven wheel, wherein the synchronous belt pulley and the driven wheel are arranged along the Y-axis direction;
and a synchronous belt is connected between the synchronous belt wheel and the driven wheel.
By adopting the technical scheme, the synchronous belt is respectively wound on the synchronous belt pulley and the driven wheel, and the Y-axis driving motor drives the synchronous belt to rotate.
The present invention may be further configured in a preferred embodiment as: the top of Y axle connecting plate is provided with the fixed plate, the fixed plate is kept away from the one end of Y axle connecting plate is located the lower surface of hold-in range, the upper surface of hold-in range is provided with the fixing base, the fixing base with the fixed plate is connected and is carried the hold-in range.
Through adopting above-mentioned technical scheme, realize being connected of Y hub connection board and hold-in range.
The present invention may be further configured in a preferred embodiment as: the rack is a hollow pipe body, and the bottom end of the rack is communicated with a sample adding needle.
Through adopting above-mentioned technical scheme, application of sample test liquid flows into application of sample needle from the rack, realizes the application of sample.
To sum up, the utility model discloses a beneficial technological effect does:
1. the part of the linear bearing located in the tooth holder is provided with an arc-shaped groove, the rack is exposed at the arc-shaped groove, the gear is arranged in the arc-shaped groove and meshed with the rack, the meshed part of the gear and the rack is located in the linear bearing, the linear bearing effectively offsets the lateral force applied by the gear to the rack, and the stability of the rack in moving in the vertical direction is ensured.
2. The upper end and the lower end of the linear bearing extend out of the tooth holder, so that the guiding length, namely the lead, is ensured to be long enough, and the guiding precision of the rack is improved.
3. The inner wall of the linear bearing is provided with a sliding block protruding inwards, the outer wall of the rack is provided with a guide groove along the vertical direction, the rack is inserted into the linear bearing, and the sliding block is inserted into the guide groove, so that the sliding connection between the rack and the linear bearing is realized.
Drawings
Fig. 1 is a schematic structural view of a sample adding arm provided by the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a first schematic structural diagram of the Y-axis motion mechanism;
FIG. 4 is a second schematic structural view of the Y-axis motion mechanism;
FIG. 5 is a front view of FIG. 1;
fig. 6 is a sectional view a-a of fig. 5.
In the figure, 1, a frame; 11. a guide rail; 12. a Y-axis slider; 13. a Y-axis connecting plate; 14. a fixing plate; 15. a fixed seat; 16. a synchronous belt; 17. a Y-axis drive motor; 18. a synchronous pulley; 19. a driven wheel; 21. a Z-axis drive motor; 22. a coupling; 23. a square shaft; 24. a gear; 25. a bearing; 26. a tooth holder; 27. a linear bearing; 271. a slider; 28. a rack; 281. a guide groove; 29. and a sample adding needle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a sample adding arm, including the frame 1 of rectangular shape, install Y axle motion and Z axle motion in frame 1, wherein Y axle motion removes along the horizontal direction, and Z axle motion removes along vertical direction, realizes the epaxial linkage of sample adding arm at Y axle and Z.
Referring to fig. 3 and 4, the Y-axis movement mechanism includes a Y-axis driving assembly, a guide rail 11 disposed on the frame 1, a Y-axis slider 12, and a Y-axis connection plate 13, the guide rail 11 is fixed to the inner side of the frame 1 along the length direction of the frame 1, and the length direction of the guide rail 11 is in the horizontal direction. The Y-axis sliding block 12 is connected with the guide rail 11 in a sliding mode, an inwards concave through groove is formed in the Y-axis sliding block 12, and the guide rail 11 is inserted into the through groove to guarantee the Y-axis sliding block 12 to freely slide on the guide rail 11.
The Y-axis driving assembly comprises a Y-axis driving motor 17, a synchronous belt pulley 18 and a driven wheel 19, wherein the Y-axis driving motor 17 is arranged at one end of the guide rail 11, the Y-axis driving motor 17 is fixedly arranged on the machine frame 1, and the main shaft is vertical to the inner side surface of the machine frame 1. The timing pulley 18 is coaxially connected to the main shaft of the Y-axis drive motor 17. The driven wheel 19 is arranged at one end of the guide rail 11 far away from the Y-axis driving motor 17, and the driven wheel 19 is rotatably arranged on the frame 1, and the rotating axis of the driven wheel is perpendicular to the inner side surface of the frame 1. A timing belt 16 is connected between the timing pulley 18 and the driven pulley 19, and the timing belt 16 is wound around the timing pulley 18 and the driven pulley 19 to rotate.
The Y-axis connecting plate 13 is fixedly connected to one side of the Y-axis sliding block 12 far away from the guide rail 11, and a fixing plate 14 is arranged at the top of the Y-axis connecting plate 13. The fixing plate 14 is stepped, the higher end is fixedly connected with the top of the Y-axis connecting plate 13, and the lower end extends into the lower surface of the synchronous belt. Correspondingly, be provided with fixing base 15 at the upper surface of hold-in range 16, fixing base 15 is the panel of bar, and fixing base 15 and fixed plate 14 clip hold-in range 16, and fixing base 15 and fixed plate 14 bolted connection to realize being connected of Y axle connecting plate 13 and hold-in range 16, drive hold-in range 16 through Y axle driving motor 17 and revolve, thereby drive the Y axle connecting plate 13 of being connected with hold-in range 16 and slide along guide rail 11.
Referring to fig. 5 and 6, the Z-axis movement mechanism includes a Z-axis driving assembly, a gear 24, a rack 28, a linear bearing 27 and a gear seat 26, which are disposed on the frame 1, and the gear seat 26 is fixedly mounted on the Y-axis connecting plate 13 on a side far away from the Y-axis slider 12. The gear 24 rotates and is set up on the toothholder 26, and the axial both ends integrated into one piece of gear 24 has the axis body, sets up to 24 axles of gear promptly, is located correspondingly and fixedly installs bearing 25 on the toothholder 26, and the axis body at gear 24 both ends respectively with the inner circle interference fit of bearing 25, guarantees the rotational stability of gear 24. The inner edge of gear 24 is connected to a Z-axis drive assembly that drives the rotation of gear 24.
Referring to fig. 2 and 6, a linear bearing 27 is installed in the tooth holder 26 along the vertical direction, and both the upper and lower ends of the linear bearing 27 extend out of the tooth holder 26, so that the guiding length, i.e., the lead length, is ensured to be sufficiently long. The inner wall of the linear bearing 27 is provided with an inward convex sliding block 271, correspondingly, the outer wall of the rack 28 is provided with a guide groove 281 matched with the sliding block 271, the rack 28 is inserted into the linear bearing 27, and the sliding block 271 is inserted into the guide groove 281, so that the sliding connection between the rack 28 and the linear bearing 27 is realized; the lead of the linear bearing 27 is sufficiently long to improve the guiding accuracy of the rack 28.
The part of the linear bearing 27, which is positioned in the tooth holder 26, is provided with an arc-shaped groove, the rack 28 is exposed at the arc-shaped groove, and the gear 24 is arranged in the arc-shaped groove and meshed with the rack 28, so that the transmission of the gear 24 and the rack 28 is realized; the meshing part of the gear 24 and the rack 28 is positioned in the linear bearing 27, and the linear bearing 27 effectively counteracts the lateral force applied to the rack 28 by the gear 24, so that the stability of the movement of the rack 28 in the vertical direction is ensured.
Referring to fig. 1, the Z-axis driving assembly includes a Z-axis driving motor 21, a coupling 22, and a square shaft 23, the Z-axis driving motor 21 is fixedly mounted on the frame 1 through a motor bracket, and a main shaft axis of the Z-axis driving motor 21 is parallel to an inner side surface of the frame 1. One end of the square shaft 23 is rotatably connected to the frame 1, and the other end is connected to a main shaft of the Z-axis driving motor 21 through a coupling 22. The square shaft 23 penetrates through the square inner edge of the gear 24 in the horizontal direction, so that the transmission connection between the square shaft 23 and the gear 24 is realized, the square shaft 23 is driven to rotate through the Z-axis driving motor 21, the gear 24 is driven to rotate, and the gear 24 and the rack 28 are meshed for transmission to realize lifting.
Referring to fig. 6, the rack 28 is a hollow tube, the bottom end of the hollow tube is provided with a sample injection needle 29, the sample injection needle 29 is communicated with the rack 28, and sample injection liquid flows into the sample injection needle 29 from the rack 28 to realize sample injection.
The implementation principle of the embodiment is as follows: the upper end and the lower end of the linear bearing 27 extend out of the tooth holder 26, so that the guiding length, namely the lead, is ensured to be long enough, and the guiding precision of the rack 28 is improved; the part of the linear bearing 27 located in the gear seat 26 is provided with an arc-shaped groove, the rack 28 is exposed at the arc-shaped groove, the gear 24 is arranged in the arc-shaped groove and meshed with the rack 28, the meshed part of the gear 24 and the rack 28 is located in the linear bearing 27, the linear bearing 27 effectively counteracts the lateral force applied by the gear 24 to the rack 28, and the stability of the rack 28 moving in the vertical direction is ensured.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a sample adding arm, includes frame (1), set up in Y axle motion and Z axle motion on frame (1), its characterized in that: the Z-axis movement mechanism comprises a Z-axis driving component, a gear (24), a rack (28), a linear bearing (27) and a tooth holder (26), which are arranged on the rack (1), and the inner edge of the gear (24) is in transmission connection with the Z-axis driving component;
the tooth holder (26) is connected with the Y-axis motion mechanism in a sliding manner; the linear bearing (27) is vertically arranged in the tooth holder (26) and two ends of the linear bearing extend out; the rack (28) is arranged in the linear bearing (27) in a sliding mode, an arc-shaped groove is formed in the tooth holder (26) of the linear bearing (27), and the gear (24) is meshed with the rack (28) in the arc-shaped groove.
2. A sample addition arm according to claim 1, wherein: the inner wall of the linear bearing (27) is provided with a sliding block (271) protruding inwards, the outer wall of the rack (28) is provided with a guide groove (281) along the vertical direction, and the sliding block (271) is inserted into the guide groove (281).
3. A sample addition arm according to claim 1, wherein: the Z-axis driving assembly comprises a Z-axis driving motor (21), a coupler (22) and a square shaft (23), one end of the coupler (22) is connected with a main shaft of the Z-axis driving motor (21), and the other end of the coupler is connected with the square shaft (23);
the square shaft (23) penetrates through the inner edge of the gear (24) to drive the gear (24) to rotate.
4. A sample addition arm according to claim 3, wherein: a bearing (25) is arranged on the tooth holder (26);
and a shaft body is arranged in the axial direction of the gear (24), and the shaft body is rotationally connected with the bearing (25).
5. A sample addition arm according to claim 1, wherein: the Y-axis movement mechanism comprises a Y-axis driving assembly, a guide rail (11) arranged on the rack (1), a Y-axis sliding block (12) and a Y-axis connecting plate (13), and the Y-axis sliding block (12) is connected with the guide rail (11) in a sliding mode;
one side of the Y-axis connecting plate (13) is connected with the Y-axis sliding block (12), and the other side of the Y-axis connecting plate is connected with the tooth holder (26); and the Y-axis connecting plate (13) is connected with the Y-axis driving component.
6. A sample addition arm according to claim 5, wherein: the Y-axis driving assembly comprises a Y-axis driving motor (17), a synchronous belt pulley (18) and a driven wheel (19), wherein the synchronous belt pulley (18) and the driven wheel (19) are arranged along the Y-axis direction, and the synchronous belt pulley (18) is connected with a main shaft of the Y-axis driving motor (17);
a synchronous belt (16) is connected between the synchronous pulley (18) and the driven wheel (19).
7. A sample addition arm according to claim 6, wherein: the top of Y axle connecting plate (13) is provided with fixed plate (14), fixed plate (14) are kept away from the one end of Y axle connecting plate (13) is located the lower surface of hold-in range (16), the upper surface of hold-in range (16) is provided with fixing base (15), fixing base (15) with fixed plate (14) are connected and are carried hold-in range (16).
8. A sample addition arm according to claim 1, wherein: the rack (28) is a hollow pipe body, and the bottom end of the rack (28) is communicated with a sample adding needle (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020436110.3U CN211826104U (en) | 2020-03-30 | 2020-03-30 | Application of sample arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020436110.3U CN211826104U (en) | 2020-03-30 | 2020-03-30 | Application of sample arm |
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| Publication Number | Publication Date |
|---|---|
| CN211826104U true CN211826104U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020436110.3U Active CN211826104U (en) | 2020-03-30 | 2020-03-30 | Application of sample arm |
Country Status (1)
| Country | Link |
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| CN (1) | CN211826104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730861A (en) * | 2020-12-27 | 2021-04-30 | 江苏贝索生物工程有限公司 | Full-automatic quantitative sample adding device |
| CN114770462A (en) * | 2022-04-18 | 2022-07-22 | 北京美联泰科生物技术有限公司 | Reagent box grabbing mechanism |
-
2020
- 2020-03-30 CN CN202020436110.3U patent/CN211826104U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730861A (en) * | 2020-12-27 | 2021-04-30 | 江苏贝索生物工程有限公司 | Full-automatic quantitative sample adding device |
| CN112730861B (en) * | 2020-12-27 | 2023-08-08 | 江苏贝索生物工程有限公司 | Full-automatic quantitative sample adding device |
| CN114770462A (en) * | 2022-04-18 | 2022-07-22 | 北京美联泰科生物技术有限公司 | Reagent box grabbing mechanism |
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Effective date of registration: 20240320 Address after: 100000, 1st Floor, Building 11, No. 99 Science and Technology 14th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing Sino fir Jinqiao Biological Technology Co.,Ltd. Country or region after: Zhong Guo Address before: 100000 Room 301, block a, building 19, courtyard 8, Liangshuihe Second Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING MEILIAN TAIKE BIOTECHNOLOGY Co.,Ltd. Country or region before: Zhong Guo |