A positioning mechanism for a PCB pin insertion machine
By integrating telescopic cylinders and limit components into the PCB pin insertion machine positioning mechanism, the problems of single-direction positioning and complex adjustment in the existing technology are solved, and the effects of multi-direction positioning and rapid adaptation to PCB boards of different sizes are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KANGCHENGLIANG ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-26
Smart Images
Figure CN224290478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCB pin insertion machine technology, and specifically to a positioning mechanism for a PCB pin insertion machine. Background Technology
[0002] The PCB positioning mechanism is a crucial component of PCB pin insertion machines. In existing technologies, traditional positioning mechanisms may only achieve positioning in a single direction, or require complex adjustments to accommodate PCBs of different sizes, potentially limiting positioning accuracy. They also employ complex mechanical structures, such as multi-stage transmission devices or multiple independent drive units, to achieve PCB positioning. This design can result in a bulky structure, high cost, and complex maintenance. Utility Model Content
[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a positioning mechanism for a PCB pin insertion machine, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention employs a positioning mechanism for a PCB pin insertion machine, comprising:
[0005] The base plate extends in a first direction and includes mounting through holes extending in a second direction.
[0006] A fixing block is positioned above the mounting through hole, with its bottom ends connected to the base plate along both ends of the first direction, and its top used to support the PCB board. The fixing block has a front limiting component and a rear limiting component on both sides along the first direction, and side limiting components are symmetrically provided on both sides along the third direction.
[0007] A driving unit, disposed within the mounting through hole, includes a telescopic cylinder and a telescopic connector. The telescopic cylinder is located in the mounting through hole along the first direction near the side wall of the front limiting component. The driving end of the telescopic cylinder extends along the first direction and connects to the rear limiting component. Both ends of the telescopic connector along the third direction are connected to the side limiting component, used to drive the rear limiting component to move along the first direction via the telescopic cylinder, and to drive the side limiting component to move along the third direction via the telescopic connector, so as to abut and limit contact with the PCB board.
[0008] This utility model provides a positioning mechanism for a PCB pin insertion machine. By integrating a telescopic cylinder, a telescopic connector, and a limiting component into a compact structure, it achieves multi-directional positioning functionality. The telescopic cylinder directly drives the rear limiting component to move along a first direction, while simultaneously driving the side limiting component to move along a third direction via the telescopic connector, reducing transmission links and simplifying the structure. Through the coordinated action of the front, rear, and side limiting components, multi-directional positioning can be achieved. The cooperation between the telescopic cylinder and the telescopic connector allows for flexible adjustment of the limiting component's position, adapting to PCBs of different sizes and shapes.
[0009] In some embodiments, the front limiting component includes a first fixing plate, a plurality of first connecting blocks, and a plurality of first baffles. The first fixing plate extends along a first direction, its bottom is connected to the base plate, and its top is provided with a first protrusion extending along a third direction. The plurality of first connecting blocks are spaced apart along the third direction, and the bottom of each first connecting block is provided with a first groove adapted to the first protrusion. The first baffles extend along a second direction and are disposed on the side of the first connecting block near the fixing block along the first direction, and the plurality of first baffles are correspondingly disposed with the plurality of first connecting blocks.
[0010] By employing the above technical solution, the structural stability of the limiting assembly is ensured through the firm connection between the first fixing plate and the base plate, and the grooved fit between the first connecting block and the first fixing plate. The corresponding arrangement of the first baffle and the first connecting block also ensures reliable support for each baffle. Furthermore, the layout of the limiting assembly can be adjusted by increasing or decreasing the number of the first connecting blocks and the first baffle according to the size or shape of the PCB board, adapting to different PCB board specifications without redesigning or replacing the entire limiting assembly.
[0011] In some embodiments, the base plate has an inner groove corresponding to the rear limiting component. The rear limiting component includes a first driven plate, a second fixing plate, a plurality of second connecting blocks, and a plurality of second baffles. The first driven plate extends along the second direction and is disposed on the side wall of the inner groove near the mounting through hole. The second fixing plate extends along the first direction, with its bottom connected to the top of the first driven plate, and its top has a second protrusion extending along a third direction. The plurality of second connecting blocks are spaced apart along the third direction, and the bottom of each second connecting block has a second groove adapted to the second protrusion. The second baffles extend along the second direction and are disposed on the side of the second connecting block near the fixing block along the first direction. The plurality of first baffles correspond one-to-one with the plurality of first connecting blocks.
[0012] By adopting the above technical solution, an inner groove is set on the base plate, and the first driven plate is installed on the side wall of the inner groove, allowing the rear limiting component to be embedded inside the base plate, reducing the overall height occupation and avoiding interference with other components. The number of the second connecting block and the second baffle can be increased or decreased according to the size or shape of the PCB board, which can quickly adapt to PCB boards of different specifications without redesigning or replacing the entire limiting component.
[0013] In some embodiments, the lateral limiting assembly includes a third fixed plate, a second driven plate, a connecting rod, and a linear bearing. Both the third fixed plate and the second driven plate extend along the first direction. The third fixed plate is located on the side of the base plate away from the mounting through hole along the third direction. The second driven plate is located within the mounting through hole and is positioned close to the third fixed plate along the third direction. Both ends of the second driven plate along the first direction have driven blocks, and the linear bearing is located within the driven blocks. The connecting rod extends along the third direction, with one end connected to the linear bearing and the other end passing through the base plate and connecting to the third fixed plate.
[0014] Using the above technical solution, linear bearings can provide high-precision linear motion, ensuring that the limiting components maintain precise position control during movement. This solution, through the combination of linear bearings and connecting rods, allows the second driven plate to be dynamically adjusted as needed during positioning. The high-precision guiding characteristics of the linear bearings allow the second driven plate to move freely in the third direction, thereby enabling minute displacement adjustments to adapt to the PCB board.
[0015] In some embodiments, the side-mounted limiting assembly further includes an extension, a third baffle, and a bearing seat. The extension is disposed on the top of the driven block and extends away from the mounting through hole along the third direction. The extension is spaced apart from the base plate along the second direction. The third baffle extends along the second direction and is disposed on the side of the extension along the third direction near the fixing block. The bearing seat is disposed on the side of the third fixing plate along the third direction near the telescopic cylinder.
[0016] Using the above technical solution, the extension extends from the top of the driven block along the third direction and cooperates with the third baffle to form a more stable limiting structure. The third baffle extends along the second direction and can provide additional limiting effect from the side, ensuring the stability and positioning accuracy of the PCB board in the third direction.
[0017] In some embodiments, the telescopic connector includes a parallel plate assembly, a connecting plate, and a spring. The parallel plate assembly extends along the third direction and is located on the upper and lower sides of the drive end of the telescopic cylinder. Connecting bearings along the second direction are provided at both ends of the parallel plate assembly along the third direction. The connecting plate is rotatably connected to the connecting bearings and the bearing seats, respectively. The spring extends along the first direction and is sleeved on the extension between the parallel plate assembly and the base plate, used to drive the extension to move the parallel plate assembly via the telescopic cylinder. The connecting plate rotates and drives the second driven plate and the driven block to move along the linear bearing to adjust the position of the third baffle.
[0018] Using the above technical solution, the parallel plate assembly extends along a third direction and is rotatably connected to the connecting plate via a connecting bearing, ensuring high-precision motion transmission. The low-friction characteristics of the connecting bearing make the movement of the parallel plate assembly smoother. A spring extends along the first direction and is sleeved between the parallel plate assembly and the base plate, providing elastic compensation when driven by the telescopic cylinder, reducing impact and vibration during movement.
[0019] In some embodiments, along the second direction, the first connecting block and the first baffle, the second connecting block and the second baffle, the extension and the third baffle are all provided with corresponding bolt mounting holes.
[0020] By employing the above technical solution, bolt mounting holes are provided between the first connecting block and the first baffle, the second connecting block and the second baffle, and the extension and the third baffle, enabling fastening connections using bolts and significantly enhancing the connection strength between the components. The design of multiple bolt mounting holes makes the connection more uniform and stable, reducing the risk of damage caused by localized stress concentration.
[0021] In some embodiments, the mounting through hole is provided with limiting protrusions on both sides of the telescopic cylinder for abutting and limiting the movement with the driven block.
[0022] By adopting the above technical solution, limiting protrusions are provided on both sides of the mounting through hole, which can accurately limit the driven block from both sides, ensure the positional accuracy of the driven block during the movement, and reduce equipment failure caused by limiting failure.
[0023] In some embodiments, the fixing block has fixing through holes at both ends along the first direction, and the fixing through holes extend along the second direction for connection with the base plate by bolts.
[0024] By employing the above technical solution, and by setting fixing through holes at both ends of the fixing block and connecting it to the base plate with bolts, reliable mechanical strength can be provided, ensuring a firm connection between the fixing block and the base plate. Simultaneously, the fixing through holes are aligned with the positioning holes at both ends of the PCB board, and the PCB board and the fixing block are further secured by inserting pins. Attached Figure Description
[0025] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0026] Figure 2 This is a partial structural schematic diagram of an embodiment of the present utility model;
[0027] In the picture:
[0028] 1. Positioning mechanism;
[0029] 2. Base plate; 20. Mounting through hole; 21. Limiting protrusion;
[0030] 3. Fixing block; 30. Fixing through hole;
[0031] 4. Front limiting component; 40. First fixing plate; 41. First connecting block; 42. First baffle; 43. Bolt mounting hole;
[0032] 5. Rear limiting assembly; 50. First driven plate; 51. Second fixing plate; 52. Second connecting block; 53. Second baffle;
[0033] 6. Side-mounted limiting assembly; 60. Third fixing plate; 61. Second driven plate; 62. Driven block; 63. Connecting rod; 64. Linear bearing; 65. Extension; 66. Third baffle; 67. Bearing seat;
[0034] 70. Telescopic cylinder; 71. Drive end; 72. Parallel plate assembly; 73. Connecting bearing; 74. Connecting plate; 75. Spring. Detailed Implementation
[0035] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0036] refer to Figure 1 and Figure 2 , Figure 1 A perspective view of a positioning mechanism 1 for a PCB pin insertion machine provided in an embodiment of the present invention is shown; Figure 2 This diagram shows a partial structural schematic of a positioning mechanism 1 for a PCB pin insertion machine provided in an embodiment of the present invention.
[0037] like Figure 1 and Figure 2 As shown, the technical solution provided in this application is a positioning mechanism 1 for a PCB pin insertion machine, comprising:
[0038] Base plate 2, along the first direction ( Figure 1 Extending in the X direction (as shown), including along the second direction ( Figure 1 Mounting through hole 20 extending in the Z direction (as shown in the middle Z direction).
[0039] The fixing block 3 is located above the mounting through hole 20, with its bottom ends connected to the base plate 2 along both ends in the first direction, and its top used to support the PCB board. The fixing block 3 has a front limiting component 4 and a rear limiting component 5 on both sides along the first direction, respectively, and extends along the third direction (…). Figure 1 The two sides of the component (shown in the Y direction) are symmetrically provided with side limiting components 6, and the first direction, the second direction and the third direction are perpendicular to each other.
[0040] The drive unit, located within the mounting through hole 20, includes a telescopic cylinder 70 and a telescopic connector. The telescopic cylinder 70 is positioned in the mounting through hole 20 along a first direction near the side wall of the front limiting component 4. The drive end 71 of the telescopic cylinder 70 extends along the first direction and connects to the rear limiting component. Both ends of the telescopic connector along a third direction are connected to the side limiting component 6, used to drive the rear limiting component 5 to move along the first direction via the telescopic cylinder 70, and to drive the side limiting component 6 to move along a third direction via the telescopic connector, so as to abut and limit contact with the PCB board.
[0041] This utility model provides a positioning mechanism 1 for a PCB pin insertion machine. By integrating a telescopic cylinder 70, a telescopic connector, and a limiting component into a compact mechanism, it achieves multi-directional positioning functionality. The telescopic cylinder 70 directly drives the rear limiting component 5 to move along a first direction, while simultaneously driving the side limiting component 6 to move along a third direction via the telescopic connector, reducing transmission links and simplifying the structure. Through the coordinated action of the front, rear, and side limiting components 6, multi-directional positioning can be achieved. The cooperation between the telescopic cylinder 70 and the telescopic connector allows for flexible adjustment of the position of the limiting components, adapting to PCBs of different sizes and shapes.
[0042] In some embodiments, reference Figure 1 and Figure 2The front limiting component 4 includes a first fixing plate 40, a plurality of first connecting blocks 41, and a plurality of first baffles 42. The first fixing plate 40 extends along a first direction, its bottom is connected to the base plate 2, and its top is provided with a first protrusion extending along a third direction. The plurality of first connecting blocks 41 are spaced apart along a third direction, and the bottom of each first connecting block 41 is provided with a first groove adapted to the first protrusion. The first baffles 42 extend along a second direction and are provided on the side of the first connecting block 41 close to the fixing block 3 along the first direction. The plurality of first baffles 42 are provided one-to-one with the plurality of first connecting blocks 41.
[0043] For example, the structural stability of the limiting assembly is ensured by the firm connection between the first fixing plate 40 and the base plate 2, and the groove engagement between the first connecting block 41 and the first fixing plate 40. The corresponding arrangement of the first baffle 42 and the first connecting block 41 also ensures that each baffle is reliably supported. In addition, the layout of the limiting assembly can be adjusted by increasing or decreasing the number of the first connecting block 41 and the first baffle 42 according to the size or shape of the PCB board, adapting to PCB boards of different specifications without redesigning or replacing the entire limiting assembly.
[0044] In some embodiments, reference Figure 1 and Figure 2 The base plate 2 has an inner groove corresponding to the rear limiting component 5. The rear limiting component 5 includes a first driven plate 50, a second fixing plate 51, a plurality of second connecting blocks 52, and a plurality of second baffles 53. The first driven plate 50 extends along a second direction and is located on the side wall of the inner groove near the mounting through hole 20. The second fixing plate 51 extends along a first direction and its bottom is connected to the top of the first driven plate 50. The top has a second protrusion extending along a third direction. The plurality of second connecting blocks 52 are spaced apart along a third direction, and the bottom of each second connecting block 52 has a second groove adapted to the second protrusion. The second baffles 53 extend along a second direction and are located on the side of the second connecting block 52 near the fixing block 3 along the first direction. The plurality of first baffles 42 are correspondingly arranged with the plurality of first connecting blocks 41.
[0045] For example, by providing an inner groove on the base plate 2 and mounting the first driven plate 50 on the side wall of the inner groove, the rear limiting component 5 can be embedded inside the base plate 2, reducing the overall height occupied and avoiding interference with other components. The number of the second connecting block 52 and the second baffle 53 can be increased or decreased according to the size or shape of the PCB board, which can quickly adapt to PCB boards of different specifications without redesigning or replacing the entire limiting component.
[0046] In some embodiments, reference Figure 1 and Figure 2The side-mounted limiting assembly 6 includes a third fixed plate 60, a second driven plate 61, a connecting rod 63, and a linear bearing 64. Both the third fixed plate 60 and the second driven plate 61 extend along a first direction. The third fixed plate 60 is located on the side of the base plate 2 away from the mounting through hole 20 along a third direction. The second driven plate is located within the mounting through hole 20 and is positioned close to the third fixed plate 60 along a third direction. Both ends of the second driven plate 61 along the first direction have driven blocks 62, and the linear bearing 64 is located within the driven blocks 62. The connecting rod 63 extends along a third direction, with one end connected to the linear bearing 64 and the other end passing through the base plate 2 and connecting to the third fixed plate 60.
[0047] For example, the linear bearing 64 provides high-precision linear motion, ensuring that the limiting assembly maintains precise position control during movement. This solution, through the combination of the linear bearing 64 and the connecting rod 63, allows the second driven plate 61 to be dynamically adjusted as needed during positioning. The high-precision guiding characteristics of the linear bearing 64 allow the second driven plate 61 to move freely in the third direction, thereby enabling minute displacement adjustments to accommodate the PCB board.
[0048] In some embodiments, reference Figure 1 and Figure 2 The side-mounted limiting assembly 6 also includes an extension 65, a third baffle 66, and a bearing seat 67. The extension 65 is located on the top of the driven block 62 and extends in a third direction away from the mounting through hole 20. The extension 65 is spaced apart from the base plate 2 in a second direction. The third baffle 66 extends in the second direction and is located on the side of the extension 65 near the fixing block 3 in a third direction. The bearing seat 67 is located on the side of the third fixing plate 60 near the telescopic cylinder 70 in a third direction.
[0049] For example, the extension 65 extends from the top of the driven block 62 along a third direction and cooperates with the third baffle 66 to form a more stable limiting structure. The third baffle 66 extends along a second direction and can provide additional limiting effect from the side to ensure the stability and positioning accuracy of the PCB board in the third direction.
[0050] In some embodiments, reference Figure 1 and Figure 2The telescopic connector includes a parallel plate assembly 72, a connecting plate 74, and a spring 75. The parallel plate assembly 72 extends along a third direction and is located on the upper and lower sides of the drive end 71 of the telescopic cylinder 70. Connecting bearings 73 in a second direction are provided at both ends of the parallel plate assembly 72 along the third direction. The connecting plate 74 is rotatably connected to the connecting bearings 73 and the bearing seat 67, respectively. The spring 75 extends along the first direction and is sleeved on an extension 65 between the parallel plate assembly 72 and the base plate 2. The extension 65 is used to drive the parallel plate assembly 72 to move via the telescopic cylinder 70. The connecting plate 74 rotates, causing the second driven plate 61 and the driven block 62 to move along the linear bearing 64, thereby adjusting the position of the third baffle 66.
[0051] For example, the parallel plate assembly 72 extends along a third direction and is rotatably connected to the connecting plate 74 via a connecting bearing 73, ensuring high-precision motion transmission. The low-friction characteristics of the connecting bearing 73 make the movement of the parallel plate assembly 72 smoother. The spring 75 extends along a first direction and is sleeved between the parallel plate assembly 72 and the base plate 2, providing elastic compensation when the telescopic cylinder 70 is driven, reducing impact and vibration during movement.
[0052] In some embodiments, reference Figure 1 and Figure 2 Along the second direction, the first connecting block 41 and the first baffle 42, the second connecting block 52 and the second baffle 53, the extension 65 and the third baffle 66 are all provided with bolt mounting holes 43.
[0053] For example, by providing bolt mounting holes 43 between the first connecting block 41 and the first baffle 42, the second connecting block 52 and the second baffle 53, the extension 65 and the third baffle 66, bolts can be used for fastening connections, significantly enhancing the connection strength between the components. The design of multiple bolt mounting holes 43 makes the connection more uniform and stable, reducing the risk of damage caused by local stress concentration.
[0054] In some embodiments, reference Figure 1 and Figure 2 The mounting through hole 20 has a limiting protrusion 21 on both sides of the telescopic cylinder 70, which is used to abut and limit the movement of the driven block 62.
[0055] For example, limiting protrusions 21 are provided on both sides of the mounting through hole 20, which can accurately limit the driven block 62 from both sides, ensuring the positional accuracy of the driven block 62 during movement and reducing equipment failure caused by limiting failure.
[0056] In some embodiments, reference Figure 1 and Figure 2 The fixing block 3 has fixing through holes 30 at both ends along the first direction, and the fixing through holes 30 extend along the second direction for connecting with the base plate 2 by bolts.
[0057] For example, by providing fixing through holes 30 at both ends of the fixing block 3 and connecting it to the base plate 2 with bolts, reliable mechanical strength can be provided to ensure a firm connection between the fixing block 3 and the base plate 2. At the same time, the fixing through holes 30 are aligned with the positioning holes at both ends of the PCB board, and the PCB board and the fixing block 3 are further fixed by inserting pins.
[0058] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. A positioning mechanism of a PCB pin machine, characterized in that, The utility model relates to a PCB board limiting device, including: a bottom plate extending along a first direction, comprising a mounting hole extending along a second direction; a fixed block arranged above the mounting hole, the bottom of both ends along the first direction is connected with the bottom plate, and the top is used for bearing the PCB board; the front limiting assembly and the rear limiting assembly are arranged on both sides of the fixed block along the first direction respectively, and the side limiting assembly is symmetrically arranged on both sides along a third direction; a driving part arranged in the mounting hole, comprising a telescopic air cylinder and a telescopic connecting piece, the telescopic air cylinder is arranged on the side wall of the mounting hole close to the front limiting assembly along the first direction; the driving end of telescopic air cylinder extends along the first direction and is connected with the rear limiting assembly; the telescopic connecting piece is connected with the side limiting assembly on both ends along the third direction, is used for driving the rear limiting assembly to move along the first direction through the telescopic air cylinder, and drives the side limiting assembly to move along the third direction through the telescopic connecting piece to abut with the PCB board and limit.
2. The positioning mechanism according to claim 1, characterized in that The front limiting assembly comprises a first fixed plate, a plurality of first connecting blocks and a plurality of first baffle plates, the first fixed plate extends along the first direction, and the bottom is connected with the bottom plate, and the top is provided with the first lug extending along the third direction; a plurality of first connecting blocks are arranged at intervals along the third direction, and the bottom of each first connecting block is provided with a first recess matched with the first lug; the first baffle plate extends along the second direction and is arranged on the side of the first connecting block close to the fixed block along the first direction, and the plurality of first baffle plates are arranged one by one with the plurality of first connecting blocks.
3. The positioning mechanism according to claim 2, characterized in that The bottom plate is provided with an inner recess corresponding to the rear limiting assembly, and the rear limiting assembly comprises a first driven plate, a second fixed plate, a plurality of second connecting blocks and a plurality of second baffle plates, the first driven plate extends along the second direction and is arranged on the side wall of the inner recess close to the mounting hole; the second fixed plate extends along the first direction, and the bottom is connected with the top of the first driven plate, and the top is provided with the second lug extending along the third direction; a plurality of second connecting blocks are arranged at intervals along the third direction, and the bottom of each second connecting block is provided with a second recess matched with the second lug; the second baffle plate extends along the second direction and is arranged on the side of the second connecting block close to the fixed block along the first direction, and the plurality of first baffle plates are arranged one by one with the plurality of first connecting blocks.
4. The positioning mechanism according to claim 3, characterized in that The side-mounted limiting assembly includes a third fixed plate, a second driven plate, a connecting rod, and a linear bearing. The third fixed plate and the second driven plate both extend along the first direction. The third fixed plate is located on the side of the base plate away from the mounting through hole along the third direction. The second driven plate is located inside the mounting through hole and is positioned close to the third fixed plate along the third direction. Both ends of the second driven plate along the first direction are provided with driven blocks, and the linear bearing is located inside the driven blocks. The connecting rod extends along the third direction, with one end connected to the linear bearing and the other end passing through the base plate and connected to the third fixed plate.
5. The positioning mechanism according to claim 4, characterized in that The side-mounted limiting assembly further includes an extension, a third baffle, and a bearing seat. The extension is located on the top of the driven block and extends away from the mounting through hole along the third direction. The extension is spaced apart from the base plate along the second direction. The third baffle extends along the second direction and is located on the side of the extension closer to the fixed block along the third direction. The bearing seat is located on the side of the third fixed plate closer to the telescopic cylinder along the third direction.
6. The positioning mechanism according to claim 5, wherein The telescopic connector includes a parallel plate assembly, a connecting plate, and a spring. The parallel plate assembly extends along the third direction and is located on the upper and lower sides of the drive end of the telescopic cylinder. The two ends of the parallel plate assembly along the third direction are provided with connecting bearings along the second direction. The connecting plate is rotatably connected to the connecting bearings and the bearing seats, respectively. The spring extends along the first direction and is sleeved on the extension between the parallel plate assembly and the base plate. It is used to drive the extension to move the parallel plate assembly through the telescopic cylinder. The connecting plate rotates and drives the second driven plate and the driven block to move along the linear bearing to adjust the position of the third baffle.
7. The positioning mechanism of claim 5, wherein Along the second direction, the first connecting block and the first baffle, the second connecting block and the second baffle, the extension and the third baffle are all provided with corresponding bolt mounting holes.
8. The positioning mechanism of claim 4, wherein, The mounting through hole has a limiting protrusion on both sides of the telescopic cylinder, which is used to abut and limit the movement of the driven block.
9. The positioning mechanism of claim 1, wherein, The fixing block has fixing through holes at both ends along the first direction, and the fixing through holes extend along the second direction for connection with the base plate by bolts.