Medical injection practice pen assembly jig circulation line
By designing the medical injection exercise pen assembly fixture circulation line, the automated production of medical injection exercise pen is realized, solving the existing problem of low assembly efficiency and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202422300372.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing medical injection exercise pens are inefficient, difficult and costly, and need to achieve automated production.
A medical injection exercise pen assembly fixture circulation line is designed, including an upper layer conveying component, a lower layer conveying component, a first lifting component, a second lifting component and a multiple assembled fixtures. The circulating transmission and material transfer of the assembled fixture are realized through the automated circulation line, and the coordinated operation of the upper layer and the lower layer conveying component is utilized, combined with the stable support of the connecting frame, to ensure the smooth flow of the assembled fixture in the closed-loop conveying channel, and to achieve automatic material transfer through the precise positioning of the positioning component.
It improves the production efficiency of medical injection exercise pens, reduces operation difficulty, improves product consistency and quality, simplifies assembly steps, reduces artificial errors, and lays the foundation for efficient and high-quality production.
Smart Images
Figure CN223114580U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical practice tool assembly, in particular to a circulating line for a jig for assembling a medical injection practice pen. Background Art
[0002] An insulin practice injection pen is a medical device designed specifically for diabetic patients, aiming to simulate the real insulin injection process to help patients familiarize themselves with and master the insulin injection skills. The internal structure of the pen is carefully designed to simulate the actual operation of an insulin injection pen. The insulin practice injection pen usually does not contain real insulin liquid, but uses simulated liquid to ensure that patients do not come into contact with drugs during practice, thus ensuring safety. Through repeated practice, patients can proficiently master key steps such as preparation before injection, selection of injection sites, control of injection angles, control of injection depths, and post-injection handling.
[0003] The injection practice pen is formed by assembling multiple accessories. In the existing production process of the injection practice pen, it is assembled manually or by semi-automatic equipment. This kind of assembly method has low efficiency, high difficulty, and high cost. Therefore, it is necessary to carry out an automated design for the existing production of injection practice pens. Summary of the Utility Model
[0004] To solve the above problems, the utility model is used for the automatic assembly of medical test practice pens. Through an automated circulating line for the cyclic transmission of assembly jigs, automated material transfer is achieved, which is conducive to improving production efficiency. A circulating line for a jig for assembling a medical injection practice pen that solves the problem of low existing assembly efficiency.
[0005] The technical solution adopted by the utility model is: a circulating line for a jig for assembling a medical injection practice pen, including an upper layer conveying component, a lower layer conveying component, a first lifting component, a second lifting component, and multiple assembly jigs; a connecting frame is arranged between the upper layer conveying component and the lower layer conveying component, and the first lifting component and the second lifting component are respectively arranged at both ends of the lower layer conveying component and the upper layer conveying component to form a closed-loop conveying channel for transmitting the assembly jigs; the assembly jig includes a jig bottom plate and a fixed placement seat, and a first assembly hole and a second assembly hole are arranged in the vertical direction of the fixed placement seat, and the first assembly hole and the second assembly hole are arranged side by side.
[0006] Further improvement of the above solution is that multiple groups of the upper layer conveying components are provided, and the adjacent two groups of upper layer conveying components are connected end to end.
[0007] Further improvement of the above solution is that multiple groups of the lower layer conveying components are provided, and the adjacent two groups of lower layer conveying components are connected end to end.
[0008] A further improvement to the above solution is that the upper conveying component and the lower conveying component are vertically opposite to each other.
[0009] A further improvement to the above solution is that the upper conveying component includes an upper conveying frame, upper conveying rollers, an upper conveyor belt, an upper conveying motor, and upper conveying baffles. The upper conveying rollers are arranged at both ends of the upper conveying frame. The upper conveyor belt is transmission-connected to the upper conveying rollers. The upper conveying motor is arranged on the connecting frame and is drivingly connected to the upper conveying rollers. The upper conveying baffles are arranged on both sides of the upper conveying frame and form an upper conveying groove on the upper side of the upper conveyor belt. The upper conveyor belt is used to drive the assembly jig to convey along the upper conveying groove.
[0010] A further improvement to the above solution is that the lower conveying component includes a lower conveying frame, lower conveying rollers, a lower conveyor belt, a lower conveying motor, and lower conveying baffles. The lower conveying rollers are arranged at both ends of the lower conveying frame. The lower conveyor belt is transmission-connected to the lower conveying rollers. The lower conveying motor is arranged on the connecting frame and is drivingly connected to the lower conveying rollers. The lower conveying baffles are arranged on both sides of the lower conveying frame and form a lower conveying groove on the upper side of the lower conveyor belt. The lower conveyor belt is used to drive the assembly jig to convey along the lower conveying groove.
[0011] A further improvement to the above solution is that the upper conveying rollers are provided with upper tension stretching blocks. One end of the upper tension stretching block is slidably connected to the upper conveying frame, and the other end is rotatably connected to the upper conveying roller. The lower conveying rollers are provided with lower tension stretching blocks. One end of the lower tension stretching block is slidably connected to the lower conveying frame, and the other end is rotatably connected to the lower conveying roller.
[0012] A further improvement to the above solution is that the connecting frame includes a bottom plate, two side plates, and support foot cups. The two side plates are respectively arranged on both sides of the upper conveying component and the lower conveying component. The bottom plate is arranged at the bottom of the two side plates. The support foot cups are arranged at the bottom of the bottom plate.
[0013] A further improvement to the above solution is that it further includes a positioning component. The positioning component includes a conveying positioning module and a position positioning module. The conveying positioning module includes a first fixing frame arranged on the upper conveying component, a conveying positioning cylinder, and a conveying positioning pressing block. The conveying positioning cylinder is arranged on the first fixing frame. The conveying positioning pressing block is arranged at the driving end of the conveying positioning cylinder. The conveying positioning pressing block is provided with a positioning surface facing the conveying direction of the assembly jig. The positioning surface is used for positioning the jig bottom plate on the upper conveying component.
[0014] A further improvement to the above solution is that the position positioning module is located on one side of the conveying and positioning module. A positioning pressure plate is provided on the positioning surface. The position positioning module includes a lifting cylinder and a lifting positioning block. The lifting positioning block faces the positioning pressure plate to clamp and position the fixture bottom plate.
[0015] A further improvement to the above solution is that the lifting positioning block is provided with a position positioning block, and the fixture bottom plate is provided with a positioning groove. The position positioning block is used to cooperate with the positioning groove to position the fixture bottom plate, and together with the positioning surface, a double-sided positioning structure is formed; a positioning inclined surface is provided on the upper side of the position positioning block.
[0016] A further improvement to the above solution is that positioning pins are provided on both sides of the lifting positioning block where the position positioning block is located, and positioning pin holes are provided on both sides of the fixture bottom plate. The positioning pin holes cooperate with the positioning pins to position the fixture bottom plate.
[0017] The beneficial effects of the present utility model are:
[0018] Compared with the manual assembly of existing test pens, the present utility model is used for the automatic assembly of medical test practice pens. Through the automated circulation line for the cyclic transmission of the assembly fixture, automated material transfer is achieved, which is beneficial to improving production efficiency. It solves the problem of low existing assembly efficiency.
[0019] Through the coordinated operation of the upper-layer and lower-layer conveying components of the present utility model, combined with the stable support of the connecting frame, the smooth flow of the assembly fixture in the closed-loop conveying channel is ensured, effectively reducing the errors and time consumption of manual handling. The ingenious layout of the first lifting component and the second lifting component not only optimizes the space utilization but also ensures the seamless connection of the assembly fixture between different working areas, accelerating the production process. The fixture bottom plate and the fixed placement seat designed on the assembly fixture, especially the parallel arrangement of the first assembly hole and the second assembly hole in the vertical direction, provide a precise positioning and installation environment for the key components of the medical practice pen, significantly reducing the quality problems caused by component misalignment during the assembly process. This design not only improves the product consistency but also simplifies the assembly steps and reduces the operation difficulty, laying a solid foundation for the efficient and high-quality production of the medical practice pen. Description of the Drawings
[0020] Figure 1 is a three-dimensional schematic diagram of the cyclic line of the assembly fixture for the medical injection practice pen of the present utility model;
[0021] Figure 2 is Figure 1 the structural schematic diagram of the cyclic line of the assembly fixture for the medical injection practice pen in
[0022] Figure 3 is Figure 1Schematic diagram of the structure of the circulation line part of the assembly jig for the traditional Chinese medicine injection practice pen;
[0023] Figure 4 is Figure 1 The assembly jig for the circulation line of the assembly jig for the traditional Chinese medicine injection practice pen;
[0024] Figure 5 is Figure 1 Schematic diagram of the structure of the positioning component of the circulation line of the assembly jig for the traditional Chinese medicine injection practice pen;
[0025] Figure 6 is Figure 5 Exploded view of the middle positioning component.
[0026] Explanation of reference numerals: upper conveying component 1, upper conveying frame 11, upper conveying roller 12, upper tension stretching block 121, upper conveyor belt 13, upper conveying motor 14, upper conveying baffle 15, lower conveying component 2, lower conveying frame 21, lower conveying roller 22, lower tension stretching block 221, lower conveyor belt 23, lower conveying motor 24, lower conveying baffle 25, first lifting component 3, second lifting component 4, assembly jig 5, jig bottom plate 51, positioning groove 511, positioning pin hole 512, fixed placement seat 52, first assembly hole 521, second assembly hole 522, connecting frame 6, bottom plate 61, two side plates 62, support foot cup 63, positioning component 7, conveying positioning module 71, first fixing frame 711, conveying positioning cylinder 712, conveying positioning pressing block 713, positioning surface 714, positioning pressing plate 715, position positioning module 72, jacking cylinder 721, jacking positioning block 722, position positioning block 723, positioning pin 724, position positioning block 723. Detailed implementation manners
[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit this utility model. As Figures 1 to 6 shown, in an embodiment of the present utility model, a cyclic line of a medical injection practice pen assembly jig is involved, including an upper layer conveying assembly 1, a lower layer conveying assembly 2, a first lifting assembly 3, a second lifting assembly 4, and a plurality of assembly jigs 5; a connecting frame 6 is arranged between the upper layer conveying assembly 1 and the lower layer conveying assembly 2, and the first lifting assembly 3 and the second lifting assembly 4 are respectively arranged at both ends of the lower layer conveying assembly 2 and the upper layer conveying assembly 1 to form a closed-loop conveying channel for transmitting the assembly jig 5; the assembly jig 5 includes a jig bottom plate 51 and a fixed placement seat 52, and a first assembly hole 521 and a second assembly hole 522 are arranged in the vertical direction of the fixed placement seat 52, and the first assembly hole 521 and the second assembly hole 522 are arranged side by side. This embodiment is used for the automatic assembly of medical test practice pens. Through the automated cyclic line for the cyclic transmission of the assembly jig 5, automated material transfer is realized, which is beneficial to improving production efficiency. The problem of low existing assembly efficiency is solved.
[0030] In this embodiment, through the coordinated operation of the upper and lower layer conveying assemblies 2, combined with the stable support of the connecting frame 6, the smooth flow of the assembly jig 5 in the closed-loop conveying channel is ensured, effectively reducing the errors and time consumption of manual handling. The ingenious layout of the first lifting assembly 3 and the second lifting assembly 4 not only optimizes the space utilization, but also ensures the seamless connection of the assembly jig 5 between different working areas, accelerating the production process. The jig bottom plate 51 and the fixed placement seat 52 designed on the assembly jig 5, especially the first assembly hole 521 and the second assembly hole 522 arranged side by side in the vertical direction, provide a precise positioning and installation environment for the key components of the medical practice pen, greatly reducing the quality problems caused by component misalignment during the assembly process. This design not only improves the consistency of the product, but also simplifies the assembly steps, reduces the operation difficulty, and lays a solid foundation for the efficient and high-quality production of the medical practice pen.
[0031] There are multiple sets of upper conveying components 1, and the heads and tails of adjacent two sets of upper conveying components 1 are connected end to end. There are multiple sets of lower conveying components 2, and the heads and tails of adjacent two sets of lower conveying components 2 are connected end to end. The upper conveying components 1 and the lower conveying components 2 are arranged opposite to each other vertically. In this embodiment, the continuity and smoothness of the assembly line are ensured, the material handling and waiting time are reduced, and the production rhythm is accelerated. The vertical layout of the upper and lower layers optimizes the space utilization, facilitating the operators to perform different processes simultaneously. For example, pre-assembly of parts is carried out on the upper layer, while the assembly of the complete set is carried out on the lower layer, realizing seamless connection between processes, improving the collaborative operation ability of the overall production line, and having significant technical effects on improving the assembly quality and output of the medical practice pen.
[0032] The upper conveying component 1 includes an upper conveying frame 11, upper conveying rollers 12, an upper conveyor belt 13, an upper conveying motor 14, and upper conveying baffles 15. The upper conveying rollers 12 are arranged at both ends of the upper conveying frame 11. The upper conveyor belt 13 is transmission-connected to the upper conveying rollers 12. The upper conveying motor 14 is arranged on the connecting frame 6 and is drivingly connected to the upper conveying rollers 12. The upper conveying baffles 15 are arranged on both sides of the upper conveying frame 11 and form an upper conveying groove on the upper side of the upper conveyor belt 13. The upper conveyor belt 13 is used to drive the assembly jig 5 to be conveyed along the upper conveying groove. Specifically, the lower conveying component 2 includes a lower conveying frame 21, lower conveying rollers 22, a lower conveyor belt 23, a lower conveying motor 24, and lower conveying baffles 25. The lower conveying rollers 22 are arranged at both ends of the lower conveying frame 21. The lower conveyor belt 23 is transmission-connected to the lower conveying rollers 22. The lower conveying motor 24 is arranged on the connecting frame 6 and is drivingly connected to the lower conveying rollers 22. The lower conveying baffles 25 are arranged on both sides of the lower conveying frame 21 and form a lower conveying groove on the upper side of the lower conveyor belt 23. The lower conveyor belt 23 is used to drive the assembly jig 5 to be conveyed along the lower conveying groove. In this embodiment, the upper and lower conveying components 2 ensure the stable transmission and accurate positioning of the assembly jig 5 through a precisely controlled conveyor belt and roller system, reducing the errors and costs of manual handling. The upper conveying component 1 focuses on preliminary or high-precision assembly processes, while the lower layer undertakes subsequent processing or finished product conveying, forming an efficient and smooth operation process. In addition, the conveying grooves formed by the baffles on both sides effectively prevent offset and dropping during the assembly process, ensuring the accuracy and safety of the medical practice pen assembly, and are an indispensable efficient technical solution in modern medical device manufacturing.
[0033] The upper conveying roller 12 is provided with an upper tension stretching block 121. One end of the upper tension stretching block 121 is slidably connected to the upper conveying frame 11, and the other end is rotatably connected to the upper conveying roller 12. The lower conveying roller 22 is provided with a lower tension stretching block 221. One end of the lower tension stretching block 221 is slidably connected to the lower conveying frame 21, and the other end is rotatably connected to the lower conveying roller 22. In this embodiment, the slidable connection mechanism of the upper and lower tension stretching blocks 221 not only ensures the constant tension control of the conveying roller on the material or semi-finished product, but also allows flexible adjustment of the tension size according to the material characteristics and assembly requirements, effectively preventing uneven stretching or breakage of the material. This design optimizes the production process, improves the assembly efficiency and product quality, and provides a solid technical support for the high-standard production of medical practice pens.
[0034] The connecting frame 6 includes a bottom plate 61, two side plates 62 and support foot cups 63. The two side plates 62 are respectively arranged on both sides of the upper conveying assembly 1 and the lower conveying assembly 2. The bottom plate 61 is arranged at the bottom of the two side plates 62, and the support foot cups 63 are arranged at the bottom of the bottom plate 61. In this embodiment, the two side plates 62 accurately position the upper and lower conveying assemblies 2, ensuring the precise alignment of the components of the medical practice pen during the transmission process and reducing the misalignment error. The stable design of the bottom plate 61 and the support foot cups 63 not only enhances the load-bearing capacity of the overall structure, but also enables the rapid leveling of the production line by adjusting the height of the foot cups to adapt to different working environments. This structure effectively promotes the assembly efficiency and product quality, and provides a solid support for the precise manufacturing of medical supplies.
[0035] It further includes a positioning component 7. The positioning component 7 includes a conveying positioning module 71 and a position positioning module 72. The conveying positioning module 71 includes a first fixing frame 711 arranged on the upper conveying assembly 1, a conveying positioning cylinder 712 and a conveying positioning pressing block 713. The conveying positioning cylinder 712 is arranged on the first fixing frame 711, and the conveying positioning pressing block 713 is arranged at the driving end of the conveying positioning cylinder 712. The conveying positioning pressing block 713 is provided with a positioning surface 714 in the conveying direction towards the assembly jig 5, and the positioning surface 714 is used for positioning the jig bottom plate 51 on the upper conveying assembly 1. In this embodiment, the conveying positioning module 71 is stably supported by the first fixing frame 711, and the conveying positioning cylinder 712 drives the conveying positioning pressing block 713 to move precisely. Its positioning surface 714 accurately docks with the conveying path of the assembly jig 5, ensuring the stable positioning of the jig bottom plate 51 on the upper conveying assembly 1. This design not only simplifies the jig positioning process, but also reduces the assembly errors caused by position deviations, effectively ensuring the consistency and quality reliability of the assembly of medical practice pens, and is one of the key technologies to improve the automation level of medical device production.
[0036] The position positioning module 72 is located on one side of the conveying and positioning module 71. A positioning pressure plate 715 is arranged on the positioning surface 714. The position positioning module 72 includes a lifting cylinder 721 and a lifting positioning block 722. The lifting positioning block 722 faces the positioning pressure plate 715 to clamp and position the fixture bottom plate 51. In this embodiment, the precise cooperation between the lifting cylinder 721 and the lifting positioning block 722 ensures the stable clamping and precise positioning of the fixture bottom plate 51 during the assembly process, effectively avoiding assembly errors caused by position deviation. At the same time, the positioning pressure plate 715 arranged on the positioning surface 714 acts relatively with the lifting positioning block 722 to form a stable clamping force, further enhancing the fixing effect of the fixture bottom plate 51 and providing a solid foundation for the accurate assembly of the precision components inside the medical practice pen. The implementation of this technical solution not only speeds up the assembly speed but also significantly improves the assembly quality of the product, providing a strong guarantee for the high-precision and high-reliability production of the medical practice pen.
[0037] A position positioning block 723 is arranged on the lifting positioning block 722. A positioning groove 511 is arranged on the fixture bottom plate 51. The position positioning block 723 is used to cooperate with the positioning groove 511 to position the fixture bottom plate 51 and form a double-sided positioning structure in combination with the positioning surface 714. A positioning inclined surface is arranged on the upper side of the position positioning block 723. Specifically, positioning pins 724 are arranged on both sides of the lifting positioning block 722 where the position positioning block 723 is located. Positioning pin holes 512 are arranged on both sides of the fixture bottom plate 51. The positioning pin holes 512 cooperate with the positioning pins 724 to position the fixture bottom plate 51. In this embodiment, the position positioning block 723 closely cooperates with the positioning groove 511 on the fixture bottom plate 51 to form a stable double-sided positioning structure, effectively preventing deviation during the assembly process and ensuring the precise docking of each component of the practice pen. In addition, the positioning pins 724 on both sides of the lifting positioning block 722 are precisely docked with the positioning pin holes 512 on the fixture bottom plate 51, further enhancing the reliability of the positioning and reducing errors caused by human factors. In addition, the design of the positioning inclined surface optimizes the assembly path and makes the operation smoother. In summary, the application of this structural design in the field of medical practice pen assembly not only improves the production efficiency but also guarantees the assembly quality of the product.
[0038] The above embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.
Claims
1. A medical injection practice pen assembly jig circulating line, characterized in that: It includes an upper conveying component, a lower conveying component, a first lifting component, a second lifting component, and multiple assembly jigs; a connecting frame is provided between the upper conveying component and the lower conveying component, and the first lifting component and the second lifting component are respectively arranged at both ends of the lower conveying component and the upper conveying component to form a closed-loop conveying channel for the transmission of the assembly jigs; the assembly jig includes a jig bottom plate and a fixed placement seat, and a first assembly hole and a second assembly hole are arranged in the vertical direction of the fixed placement seat, and the first assembly hole and the second assembly hole are arranged side by side.
2. The medical injection practice pen assembly jig circulation line according to claim 1, characterized in that: Multiple groups of the upper conveying components are provided, and the heads and tails of adjacent two groups of upper conveying components are connected end to end; Multiple groups of the lower conveying components are provided, and the heads and tails of adjacent two groups of lower conveying components are connected end to end; The upper conveying component and the lower conveying component are opposite to each other up and down.
3. The medical injection practice pen assembly jig circulation line according to claim 2, characterized in that: The upper conveying component includes an upper conveying frame, upper conveying rollers, an upper conveyor belt, an upper conveying motor, and upper conveying baffles. The upper conveying rollers are arranged at both ends of the upper conveying frame, the upper conveyor belt is transmission-connected to the upper conveying rollers, the upper conveying motor is arranged on the connecting frame and is drivingly connected to the upper conveying rollers; the upper conveying baffles are arranged on both sides of the upper conveying frame and form an upper conveying groove on the upper side of the upper conveyor belt, and the upper conveyor belt is used to drive the assembly jig to convey along the upper conveying groove.
4. The medical injection practice pen assembly jig circulation line according to claim 3, characterized in that: The lower conveying component includes a lower conveying frame, lower conveying rollers, a lower conveyor belt, a lower conveying motor, and lower conveying baffles. The lower conveying rollers are arranged at both ends of the lower conveying frame, the lower conveyor belt is transmission-connected to the lower conveying rollers, the lower conveying motor is arranged on the connecting frame and is drivingly connected to the lower conveying rollers; the lower conveying baffles are arranged on both sides of the lower conveying frame and form a lower conveying groove on the upper side of the lower conveyor belt, and the lower conveyor belt is used to drive the assembly jig to convey along the lower conveying groove.
5. The medical injection practice pen assembly jig circulation line according to claim 4, characterized in that: The upper conveying roller is provided with an upper tension stretching block, one end of the upper tension stretching block is slidably connected to the upper conveying frame, and the other end is rotationally connected to the upper conveying roller; The lower conveying roller is provided with a lower tension stretching block, one end of the lower tension stretching block is slidably connected to the lower conveying frame, and the other end is rotationally connected to the lower conveying roller.
6. The medical injection practice pen assembly jig circulating line according to claim 1, wherein: The connecting frame includes a bottom plate, two side plates, and support foot cups. The two side plates are respectively arranged on both sides of the upper conveying component and the lower conveying component, the bottom plate is arranged at the bottom of the two side plates, and the support foot cups are arranged at the bottom of the bottom plate.
7. The medical injection practice pen assembly jig circulating line according to claim 1, wherein: It further includes a positioning component, and the positioning component includes a conveying positioning module and a position positioning module. The conveying positioning module includes a first fixing frame arranged on the upper conveying component, a conveying positioning cylinder, and a conveying positioning pressing block. The conveying positioning cylinder is arranged on the first fixing frame, the conveying positioning pressing block is arranged at the driving end of the conveying positioning cylinder, and a positioning surface is arranged on the conveying positioning pressing block towards the conveying direction of the assembly jig, and the positioning surface is used for positioning the jig bottom plate on the upper conveying component.
8. The medical injection practice pen assembly jig circulation line according to claim 7, characterized in that: The position positioning module is located on one side of the conveying and positioning module. A positioning pressing plate is provided on the positioning surface. The position positioning module includes a lifting cylinder and a lifting positioning block. The lifting positioning block is opposite to the positioning pressing plate to clamp and position the fixture bottom plate.
9. The medical injection practice pen assembly jig circulation line according to claim 8, characterized in that: The lifting positioning block is provided with a position positioning block. The fixture bottom plate is provided with a positioning groove. The position positioning block is used to cooperate with the positioning groove to position the fixture bottom plate and form a double-sided positioning structure in combination with the positioning surface. A positioning inclined surface is provided on the upper side of the position positioning block.
10. The medical injection practice pen assembly jig circulation line according to claim 9, characterized in that: Positioning pins are provided on both sides of the lifting positioning block where the position positioning block is located. Positioning pin holes are provided on both sides of the fixture bottom plate. The positioning pin holes cooperate with the positioning pins to position the fixture bottom plate.