An assembly and positioning device for pipette manufacturing.

Abstract

This utility model discloses an assembly and positioning device for pipette manufacturing, relating to the field of pipette assembly technology. The device includes a workbench with an L-shaped plate fixedly connected to the center of its back end. A mounting plate is fixedly connected to the front end of the L-shaped plate, and a mounting box is fixedly connected to the center of the front end of the mounting plate. A clamping sleeve is symmetrically slidably connected to the front end of the mounting box near its center. A second mounting plate is fixedly connected to the top of the workbench near its center. In this utility model, a drive slide rises the mounting box. Through the action of a series of transmission components—a rack, a first gear, a rotating shaft, a first bevel gear, a second bevel gear, a connecting shaft, a third bevel gear, and a short shaft—the rotating ring drives the nozzle to rotate as the mounting box rises, automatically completing the threaded connection between the nozzle and the ejector handle. This avoids situations where the connection may be too tight or too loose during manual installation, improving assembly efficiency and quality, and ensuring product consistency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of pipette assembly technology, specifically to an assembly and positioning device for pipette manufacturing and processing. Background Technology

[0002] In the field of medical devices, pipettes are a commonly used precision liquid dispensing tool in laboratories. The assembly precision of pipettes directly affects the accuracy of liquid dispensing and the reliability of the product. The core components of pipettes include nozzles and ejector handles. Among them, the quality of the threaded connection between the nozzle and the ejector handle is a key link in the assembly process.

[0003] In the pipette assembly process, when installing the tip and ejector handle, the ejector handle is usually placed in the positioning device, and then the tip is manually screwed onto the ejector handle using a tool. However, it is difficult for operators to maintain consistent force during assembly, which can easily lead to the threaded connection being too tight or too loose. Too tight a connection may damage the threads and affect subsequent disassembly and maintenance, while too loose a connection may cause the tip to fall off and the liquid to leak, seriously affecting the safety and accuracy of the pipette and making it difficult to ensure product consistency. To address these issues, the inventor proposes an assembly positioning device for pipette manufacturing to solve the above problems. Utility Model Content

[0004] To address the issue of inconsistent force applied by operators during assembly, which can lead to threaded connections being either too tight or too loose, this invention aims to provide an assembly and positioning device for pipette manufacturing.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: an assembly and positioning device for pipette production and processing, comprising a workbench, an L-shaped plate fixedly connected to the center of the back end of the top of the workbench, a mounting plate one fixedly connected to the front end of the L-shaped plate, a mounting box fixedly connected to the center of the front end of the mounting plate one, a clamping sleeve symmetrically slidably connected to the front end of the mounting box near the center, a mounting plate two fixedly connected to the top of the workbench near the center, a driving slide fixedly connected to the side end of the mounting plate two, a mounting box provided on the side end of the driving slide, a rotating ring rotatably connected to the center of the top of the mounting box, clamping rings symmetrically provided on the inner wall of the rotating ring near the center, and a guide rod fixedly connected to the side end of the clamping ring away from the center of the rotating ring, and the guide rod slidably connected to the rotating ring.

[0006] Preferably, a lead screw is symmetrically rotatably connected to the outer ring of the rotating ring near the guide rod, and the other end of the lead screw is rotatably connected to the clamping ring. A short shaft is rotatably connected to the top of the inside of the mounting box, and the top of the short shaft passes through the mounting box and is fixedly connected to the rotating ring. A bevel gear is fixedly connected to the outer ring of the short shaft near the bottom.

[0007] Preferably, a square plate is fixedly connected to the bottom of the mounting box near the short shaft, and a connecting shaft is rotatably connected inside the square plate. Two bevel gears are symmetrically fixedly connected to both ends of the connecting shaft, and one of the bevel gears meshes with a bevel gear. A rotating shaft is rotatably connected between the front and rear inner walls of the mounting box and near one side. A bevel gear is fixedly connected to the outer ring of the rotating shaft near the center, and the bevel gear meshes with another bevel gear.

[0008] Preferably, a rack is fixedly connected to the top of the workbench and to one corner near the mounting box, and a first gear is fixedly connected to the side end of the rotating shaft through the mounting box, and the first gear meshes with the rack.

[0009] Preferably, a double-ended screw is rotatably connected between the inner walls of both sides of the mounting box, and both clamping sleeves are threadedly rotatably connected to the double-ended screw. A motor is fixedly connected to the side end of the mounting box, and the output end of the motor passes through the mounting box and is fixedly connected to the double-ended screw.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] In this invention, the running drive slide raises the mounting box. Under the action of a series of transmission components, including rack, first gear, rotating shaft, bevel gear one, bevel gear two, connecting shaft, bevel gear three, and short shaft, the rotating ring drives the nozzle to rotate when the mounting box rises, automatically completing the threaded connection between the nozzle and the pusher handle. This avoids the possibility of tightness or looseness during manual installation, improves assembly efficiency and quality, and ensures product consistency and reliability. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the mounting box of this utility model.

[0015] Figure 3 This is a cross-sectional view of the mounting box of this utility model.

[0016] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Workbench; 2. L-shaped plate; 21. Mounting plate one; 22. Mounting box; 23. Clamping sleeve; 24. Double-ended screw; 25. Motor; 3. Mounting plate two; 31. Drive slide; 32. Rack; 33. Rotating shaft; 34. First gear; 35. Bevel gear one; 36. Bevel gear two; 37. Mounting box; 4. Rotating ring; 41. Short shaft; 42. Bevel gear three; 43. Connecting shaft; 45. Clamping ring; 46. Lead screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figure 1-4 As shown, this utility model provides a technical solution: an assembly and positioning device for pipette manufacturing, including a workbench 1. An L-shaped plate 2 is fixedly connected to the center of the back end of the top of the workbench 1. The front end of the L-shaped plate 2 can be set with a positioning line according to actual needs. The upward movement stops when the bottom of the nozzle moves to the positioning line. A mounting plate 21 is fixedly connected to the front end of the L-shaped plate 2. The mounting plate 21 is set to support and fix the mounting box 22. The mounting box 22 is fixedly connected to the center of the front end of the mounting plate 21. Clamping sleeves 23 are symmetrically slidably connected to the front end of the mounting box 22 near the center. The two clamping sleeves 23 are set to limit the ejector handle. Rubber pads can be set on the inner wall of the clamping sleeves 23. A second mounting plate 3 is fixedly connected to the top of the workbench 1 near the center. Mounting plate 2 3 is used to mount and fix the drive slide 31. The drive slide 31 is fixedly connected to the side of mounting plate 2 3. The drive slide 31 is provided with a mounting box 37 on the side. A rotating ring 4 is rotatably connected to the top center of the mounting box 37. A rotating disk is provided below the rotating ring 4 and is connected to it through two support shafts. Clamping rings 45 are symmetrically arranged near the center of the inner wall of the rotating ring 4. Rubber pads can be provided on the inner wall of the clamping rings 45 to limit the movement of the nozzle. A guide rod is fixedly connected to the side of the clamping rings 45 away from the center of the rotating ring 4, and the guide rod is slidably connected to the rotating ring 4. The electrical components in this application are electrically connected to their compatible power supply through wires. A suitable controller should be selected according to the actual situation to meet the control requirements. The detailed connection methods are known in the art.

[0020] A lead screw 46 is symmetrically rotatably connected to the outer ring of the rotating ring 4 near the guide rod, and the other end of the lead screw 46 is rotatably connected to the clamping ring 45.

[0021] By adopting the above technical solution, after the lead screw 46 rotates, the clamping ring 45 connected to the rotation can move under the action of the guide rod.

[0022] Inside the mounting box 37, at the top, a short shaft 41 is rotatably connected, and the top of the short shaft 41 passes through the mounting box 37 and is fixedly connected to the rotating ring 4. A bevel gear 42 is fixedly connected to the outer ring of the short shaft 41 near the bottom.

[0023] By adopting the above technical solution, after the short shaft 41 rotates, the fixedly connected rotating ring 4 can rotate, and the center of the rotating ring 4 is at the same level as the center of the two clamping sleeves 23.

[0024] A square plate is fixedly connected to the bottom of the mounting box 37 near the short shaft 41. A connecting shaft 43 is rotatably connected inside the square plate. Two bevel gears 36 are symmetrically fixedly connected to both ends of the connecting shaft 43, and one of the bevel gears 36 meshes with a bevel gear 42.

[0025] By adopting the above technical solution, the square plate is set to facilitate the rotational installation of the connecting shaft 43, thereby allowing the two fixedly connected bevel gears 36 to rotate.

[0026] A rotating shaft 33 is rotatably connected between the front and rear inner walls of the mounting box 37 and near one side. A bevel gear 35 is fixedly connected to the outer ring of the rotating shaft 33 near the center, and the bevel gear 35 meshes with another bevel gear 36.

[0027] By adopting the above technical solution, after the rotating shaft 33 rotates, the fixedly connected bevel gear 35 can rotate, thereby causing one of the meshing bevel gears 36 to rotate.

[0028] A rack 32 is fixedly connected to the top of the workbench 1 and to one side corner near the mounting box 37. A first gear 34 is fixedly connected to the side end of the rotating shaft 33 through the mounting box 37, and the first gear 34 meshes with the rack 32.

[0029] By adopting the above technical solution, the rack 32 is set in order to facilitate the rotation of the first gear 34 when the mounting box 37 rises.

[0030] A double-ended screw 24 is rotatably connected between the inner walls of both sides of the mounting box 22, and both clamping sleeves 23 are threadedly rotatably connected to the double-ended screw 24.

[0031] By adopting the above technical solution, after the double-headed screw 24 rotates, the two clamping sleeves 23 connected by the threaded rotation can move towards each other.

[0032] A motor 25 is fixedly connected to the side of the mounting box 22, and the output end of the motor 25 passes through the mounting box 22 and is fixedly connected to the double-headed screw 24.

[0033] By adopting the above technical solution, the working motor 25 is started, thereby causing the fixedly connected double-headed screw 24 to rotate.

[0034] Working principle: When using this device, first place the pipette ejector handle between the two clamping sleeves 23, then start the working motor 25, which causes the fixedly connected double-ended screw 24 to rotate. This causes the two threaded clamping sleeves 23 to move towards each other under the action of the mounting box 22, thereby completing the positioning of the ejector handle.

[0035] Then, the nozzle to be installed below the ejector handle is placed between the two clamping rings 45. Next, the two lead screws 46 are rotated simultaneously, causing the two clamping rings 45 to move towards each other under the action of the guide rod, thereby limiting the nozzle. Then, the drive slide 31 is operated, which allows the mounting box 37 to rise. Then, under the action of the rack 32, the first gear 34 drives the rotating shaft 33 and the first bevel gear 35 to rotate. Then, under the action of the two second bevel gears 36 and the connecting shaft 43, the third bevel gear 42 drives the short shaft 41 to rotate. Thus, when the mounting box 37 rises, the rotating ring 4 drives the nozzle to rotate. The nozzle stops when it moves to the positioning line set at the front end of the L-shaped plate 2. This allows the nozzle thread to be rotated below the ejector handle, thus avoiding the situation of being too tight or too loose when manually installed, thereby improving the qualification rate of pipette assembly.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An assembly positioning device for pipette production and processing, comprising a worktable (1), characterized in that: An L-shaped plate (2) is fixedly connected to the center of the back end of the top of the workbench (1). An installation plate (21) is fixedly connected to the front end of the L-shaped plate (2). An installation box (22) is fixedly connected to the center of the front end of the installation plate (21). A clamping sleeve (23) is symmetrically slidably connected to the front end of the installation box (22) near the center. The top of the workbench (1) is fixedly connected to a mounting plate two (3) near the center. The side of the mounting plate two (3) is fixedly connected to a drive slide (31). The side of the drive slide (31) is provided with a mounting box (37). The top center of the mounting box (37) is rotatably connected to a rotating ring (4). The inner wall of the rotating ring (4) is symmetrically provided with clamping rings (45) near the center. The side of the clamping ring (45) away from the center of the rotating ring (4) is fixedly connected to a guide rod, and the guide rod is slidably connected to the rotating ring (4).

2. The assembly positioning device for pipette manufacturing as claimed in claim 1, wherein, The outer ring (4) of the rotating ring (4) is symmetrically connected to a lead screw (46) near the guide rod, and the other end of the lead screw (46) is rotatably connected to the clamping ring (45).

3. The assembly positioning device for pipette manufacturing as claimed in claim 1, wherein, The top of the mounting box (37) is rotatably connected to a short shaft (41), and the top of the short shaft (41) passes through the mounting box (37) and is fixedly connected to the rotating ring (4). A bevel gear (42) is fixedly connected to the outer ring of the short shaft (41) near the bottom.

4. The assembly positioning device for pipette manufacturing as claimed in claim 3, wherein A square plate is fixedly connected to the bottom of the mounting box (37) near the short shaft (41). A connecting shaft (43) is rotatably connected inside the square plate. Two bevel gears (36) are symmetrically fixedly connected to both ends of the connecting shaft (43), and one of the bevel gears (36) meshes with a bevel gear (42).

5. An assembly positioning device for pipette manufacturing as claimed in claim 4, wherein, A rotating shaft (33) is rotatably connected between the front and rear inner walls of the mounting box (37) and near one side. A bevel gear (35) is fixedly connected to the outer ring of the rotating shaft (33) near the center, and the bevel gear (35) meshes with another bevel gear (36).

6. An assembly positioning device for pipette manufacturing as claimed in claim 5, wherein, A rack (32) is fixedly connected to the top of the workbench (1) and to one side corner near the mounting box (37). A first gear (34) is fixedly connected to the side end of the rotating shaft (33) through the mounting box (37), and the first gear (34) meshes with the rack (32).

7. The assembly positioning device for pipette manufacturing as claimed in claim 1, wherein, The mounting box (22) is rotatably connected between the inner walls on both sides by a double-ended screw (24), and both clamping sleeves (23) are threadedly rotatably connected to the double-ended screw (24).

8. The assembly positioning device for pipette manufacturing as claimed in claim 7, wherein, A motor (25) is fixedly connected to the side of the mounting box (22), and the output end of the motor (25) passes through the mounting box (22) and is fixedly connected to the double-headed screw (24).

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