A saw blade base body lifting positioning guide mechanism with a rotation limiting function

Abstract

The utility model discloses a saw blade base body lifting positioning guide mechanism with limit rotation function, the utility model is provided with first drive unit and second drive unit, through the drive three guide bearings extrude saw blade base body, make the process of saw blade base body upward movement, receive the extrusion guide of three guide bearings, form three -point formula support, ensure that saw blade base body steady upward movement, do not need artificial prevention saw blade base body rotation and axial swing, have guaranteed the positioning accuracy and the promotion of processing efficiency, also avoided the collision of saw blade base body and rotating roller or other articles, the damage of equipment, set up photoelectric open light, when the light of photoelectric switch is shaded by saw blade base body, will through the control module of welding machine and start corresponding pneumatic element, make second cylinder and third cylinder synchronous drive guide assembly move to saw blade base body side, play the purpose of automatic positioning guide, further improved the positioning guide efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, and in particular to a saw blade base lifting and positioning guide mechanism with a rotation restriction function. Background Technology

[0002] Automatic diamond saw blade welding machines primarily weld diamond-containing alloy cutting heads onto the saw blade substrate. Typically, the saw blade substrate is positioned on a frame or lifting mechanism, the cutting head is held in place by pneumatic clamps, and then welding is completed using a high-frequency heating machine. The automatic diamond saw blade welding machine uses high-frequency heating to melt the cutting head and weld the elongated cutting head onto the circumference of the disc-shaped saw blade substrate. After welding one tooth, the saw blade substrate is rotated to weld the next tooth. Therefore, it is crucial to ensure that the saw teeth are aligned axially and circumferentially with the centers of the saw blade substrate teeth during welding. For example, the patent with announcement number CN208644369U discloses an automatic diamond saw blade welding machine. The machine first raises the saw blade base from the ground to the welding position through a lifting mechanism, and then pushes the saw blade base onto the surface of the rotating roller through a pressure roller. The friction formed by the contact between the rotating roller and the saw blade base drives the saw blade base to rotate circumferentially, thereby realizing the function of rotating the saw blade base and welding each cutter head.

[0003] However, existing automatic welding machines do not have a positioning and guiding device. During the upward movement of the saw blade base, manual assistance is required to position it and prevent the saw blade base from rotating and swaying axially. Manual assistance not only results in large positioning deviations, but is also time-consuming, labor-intensive, and inefficient. Furthermore, the saw blade base is prone to collisions with rotating rollers or other objects during the upward movement, which can damage the equipment. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a saw blade base lifting and positioning guide mechanism with a rotation limiting function.

[0005] This utility model provides a saw blade base lifting and positioning guide mechanism with a rotation-limiting function, mounted on a welding machine. The welding machine includes a frame, with a first cylinder at one bottom end and a base plate at the other bottom end. A rotating roller is provided on the end face of the base plate near the first cylinder. A saw blade base is provided between the rotating roller and the first cylinder. The axial direction of the saw blade base is a first direction. The saw blade base lifting and positioning guide mechanism includes:

[0006] The first drive unit includes a first drive assembly disposed at the bottom end of the first cylinder and a guide assembly disposed on the first drive assembly near the saw blade base end along a first direction.

[0007] The second drive unit includes two guide components distributed on both sides of the rotating roller along the second direction, and a second drive component connected to the two guide components is installed on the base plate near the saw blade base.

[0008] The guiding assembly includes a guide bearing, the axis of which is a second direction; the first driving assembly and the second driving assembly are both used to drive the corresponding guiding assembly to move toward the saw blade base side, causing the surface of the guide bearing column to abut against the end surface of the saw blade base.

[0009] According to the technical solution provided in the embodiments of this application, the guide assembly includes a first mounting plate connected to a first drive assembly or a second drive assembly. One end of the first mounting plate extends towards the end near the saw blade base to form a second mounting plate. A mounting post is provided in the middle of the second mounting plate. The guide bearing is fitted outside the mounting post. A cover block for pressing the inner bearing bush of the guide bearing is provided at the end of the mounting post away from the second mounting plate.

[0010] According to the technical solution provided in the embodiments of this application, the first driving component is a second cylinder installed at the bottom of the first cylinder, and the second driving component includes two third cylinders distributed on both sides of the rotating roller along the second direction and disposed on the base plate. The piston rod ends of the second cylinder and the third cylinder are connected to the first mounting plate of the corresponding guide component.

[0011] According to the technical solution provided in the embodiments of this application, the second drive assembly further includes a rectangular connecting rod integrally formed with the first mounting plate. The rectangular connecting rod is detachably connected to the piston rod end of the third cylinder. A telescopic guide block is detachably installed at the end of the third cylinder away from the base plate. The telescopic guide block has a telescopic guide channel inside that extends along the first direction and is adapted to the rectangular connecting rod.

[0012] The second cylinder is a double-rod cylinder.

[0013] According to the technical solution provided in the embodiments of this application, the telescopic guide block has a limiting structure at the end away from the third cylinder, and the limiting structure includes:

[0014] The upper limit position includes an upper limit through hole on the first mounting plate and an upper limit screw hole on the telescopic guide block near the saw blade base and corresponding to the upper limit through hole. The upper limit screw hole is internally threaded with a limit bolt that passes through the upper limit through hole.

[0015] The third cylinder has a top dead center state and a bottom dead center state. When the third cylinder is in the top dead center state, the first mounting plate abuts against the head of the limit bolt. When the third cylinder retracts, it is in the bottom dead center state.

[0016] According to the technical solution provided in the embodiments of this application, a dustproof structure is provided between the first mounting plate and the telescopic guide block. The dustproof structure is used to prevent dust from entering the upper limit screw hole or the telescopic guide channel.

[0017] According to the technical solution provided in the embodiments of this application, the dustproof structure includes:

[0018] The fixing part includes a reinforcing protrusion provided on the telescopic guide block near the end of the saw blade base, and a mounting block surrounding the side surface of the reinforcing protrusion, wherein the side surface of the mounting block is provided with a mounting groove near the edge of the telescopic guide block;

[0019] The rubber protective sleeve includes a rectangular ring sleeve fitted outside the mounting block, a snap-fit ​​edge located at one end of the rectangular ring sleeve and capable of being snapped into the mounting groove, and a rubber cover located at the other end of the rectangular sleeve and in contact with the first mounting plate. The rubber cover is provided with a first clearance opening that fits with the rectangular connecting rod and a second clearance opening that fits with the upper limit through hole.

[0020] According to the technical solution provided in the embodiments of this application, a photoelectric switch for monitoring the saw blade substrate is provided on one side of the guide assembly. The second cylinder and the third cylinder are both connected to pneumatic components. The output end of the photoelectric switch is electrically connected to the input end of the control module of the welding machine. The output end of the control module of the welding machine is electrically connected to the input end of the pneumatic component. The control module of the welding machine controls the operation of the pneumatic component, and then the pneumatic component controls the action of the second cylinder and the third cylinder.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This invention features a first drive unit and a second drive unit. By driving three guide bearings to compress the saw blade base, the saw blade base moves upwards under the compression and guidance of the three guide bearings, forming a three-point support. This ensures stable upward movement of the saw blade base without the need for manual intervention to prevent rotation and axial sway, thus ensuring improved positioning accuracy and processing efficiency. It also prevents the saw blade base from colliding with rotating rollers or other objects, which could damage the equipment. Furthermore, a photoelectric switch is included. When the light from the photoelectric switch is blocked by the saw blade base, the corresponding pneumatic component is activated through the welding machine control module. This causes the second and third cylinders to synchronously drive the guide assembly towards the saw blade base, achieving automatic positioning and guidance, further improving the efficiency of positioning and guidance.

[0023] In addition, depending on the different installation positions of the first drive unit and the second drive unit, the second cylinder is selected as a double-rod type cylinder to restrict the axial rotation of the guide assembly and maintain stable movement, while the third cylinder restricts the axial rotation of the guide assembly through the telescopic guide channel of the telescopic guide block and the rectangular connecting rod, thereby achieving stable movement of the corresponding guide assembly and ensuring the stable advancement of the three guide bearings.

[0024] Furthermore, when the saw blade base is raised and lowered, it should be as close as possible to the rotating drive roller. Therefore, the extension distance of the third cylinder needs to be accurately positioned to avoid excessive extension causing excessive tilting of the saw blade base. Specifically, when the piston rod extends, the first mounting plate on the piston rod is held in place by the head of the limit bolt to prevent excessive extension. After the guide bearing of the second drive unit stabilizes, the guide bearing of the first drive unit will press the saw blade base against the surfaces of the other two guide bearings, ensuring not only stable pressing but also stable movement. During welding, the rotating roller needs to rotate the saw blade base, and the second and third cylinders retract, moving the guide assembly away from the saw blade base. In addition, a rubber protective sleeve is installed in this area to prevent dust from entering the upper limit screw hole and to ensure the removable use of the limit bolt. To improve the stability of the rubber protective sleeve installation, the rubber protective sleeve has an installation edge that can be snapped into the installation groove to prevent the rubber protective sleeve from loosening and excessive gaps.

[0025] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0026] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 A side view of a saw blade base lifting and positioning guide mechanism with a rotation-limiting function provided in an embodiment of this application;

[0028] Figure 2 A top view of a saw blade base lifting and positioning guide mechanism with a rotation-limiting function provided in an embodiment of this application;

[0029] Figure 3 An exploded view of the second drive component in a saw blade base lifting and positioning guide mechanism with a rotation-limiting function, provided in an embodiment of this application;

[0030] Figure 4 A cross-sectional view of the second drive component in a saw blade base lifting and positioning guide mechanism with a rotation-limiting function provided in an embodiment of this application;

[0031] Figure 5 A schematic diagram of the installation structure of the telescopic guide block and the second cylinder in a saw blade base lifting and positioning guide mechanism with a rotation limiting function provided in an embodiment of this application;

[0032] Figure 6 A cross-sectional structural diagram of the guide component in a saw blade base lifting and positioning guide mechanism with a rotation-limiting function provided in an embodiment of this application;

[0033] Figure 7 A schematic diagram of the structure of the rubber protective sleeve in a saw blade base lifting and positioning guide mechanism with a rotation limiting function provided in this application embodiment;

[0034] Figure 8 A schematic diagram of the connecting component in a saw blade base lifting and positioning guide mechanism with a rotation-limiting function provided in an embodiment of this application;

[0035] Figure 9 This is a schematic diagram of the structure of a welding machine provided in an embodiment of this application.

[0036] Numbering on the map:

[0037] 1. Welding machine; 11. Frame; 12. Base plate; 13. Motor; 14. Small bevel gear; 15. Rotating roller; 16. Roller base; 17. Roller spindle; 18. Pressure roller; 19. First cylinder;

[0038] 2. Saw blade base; 3. Second cylinder; 31. Third mounting plate;

[0039] 4. Guide assembly; 41. First mounting plate; 42. First countersunk hole; 43. Second mounting plate; 44. First screw hole; 45. Mounting post; 46. First stud; 47. Cover block; 48. Guide bearing;

[0040] 5. Second drive assembly; 51. Third cylinder; 52. Rectangular connecting rod; 53. Telescopic guide block; 54. Telescopic guide channel; 55. Upper limit screw hole; 56. Upper limit through hole; 57. Reinforcing protrusion; 58. Mounting block; 59. Mounting groove; 510. Rubber protective sleeve; 511. Mating through hole; 512. Second countersunk hole; 513. Third countersunk hole; 514. Second clearance opening; 515. Snap-fit ​​edge; 516. First clearance opening;

[0041] 6. Photoelectric switch; 61. Connecting screw hole; 62. Connector; 621. First plate; 622. Connecting through hole; 623. Second plate. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0043] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] Please refer to Figures 1-9 This utility model provides a saw blade base lifting and positioning guide mechanism with a rotation-limiting function, mounted on a welding machine 1. The welding machine 1 includes a frame 11, with a first cylinder 19 at one bottom and a base plate 12 at the other bottom. A rotating roller 15 is located on the end face of the base plate 12 near the first cylinder 19. A saw blade base 2 is located between the rotating roller 15 and the first cylinder 19, with the axial direction of the saw blade base 2 being a first direction. The welding machine 1 also includes a motor 13, a small bevel gear 14, a roller base 16, a roller spindle 17, a pressure roller 18, and a control module for the welding machine 1. The control module of the welding machine 1 is a programmable logic controller (PLC), which is prior art and will not be described in detail. The first direction is... Figure 1 and Figure 2 The left and right directions in the middle.

[0045] The saw blade base lifting and positioning guide mechanism includes:

[0046] The first drive unit includes a first drive assembly disposed at the bottom of the first cylinder 19, and a guide assembly 4 disposed on the first drive assembly near the end of the saw blade base 2 along the first direction.

[0047] The second drive unit includes two guide components 4 distributed on both sides of the rotating roller 15 along a second direction. A second drive component 5, connected to the two guide components 4, is mounted on the base plate 12 near the end of the saw blade base 2; wherein the second direction is... Figure 2 The front and back directions in the middle;

[0048] The guide assembly 4 includes a guide bearing 48, the axis of which is in the second direction. The first drive assembly and the second drive assembly 5 are both used to drive the corresponding guide assembly 4 to move toward the saw blade base 2, causing the column surface of the guide bearing 48 to abut against the end surface of the saw blade base 2. Taking the guide bearing 48 corresponding to the first drive assembly as a reference, the guide bearing 48 corresponding to the second drive assembly 5 can be at the same horizontal height as the reference, or it can be within a certain range above or below the reference. Since the saw blade base 2 is installed on the lifting mechanism, it is sufficient for the guide bearings 48 on both sides of the saw blade base 2 to maintain approximately the same horizontal height. Even if the installation position is restricted, it is acceptable as long as the deviation is not too large. Optionally, the two guide bearings 48 are set at both ends of the connecting rod, and the second drive assembly 5 is set below the rotating roller 15. The connecting rod is driven to move by the second drive assembly 5, thereby driving the two guide bearings 48 to move synchronously.

[0049] like Figure 1 , Figure 2 and Figure 9 As shown, the second drive assembly 5 pushes two guide bearings 48 to move to the left, and the first drive assembly pushes one guide bearing 48 to move to the right. During the upward movement of the saw blade base 2, it is guided by the compression of the three guide bearings 48, forming a three-point support and guidance. This ensures that the saw blade base 2 moves upward stably without the need for manual prevention of rotation and axial sway of the saw blade base 2. This ensures improved positioning accuracy and processing efficiency, and also avoids collisions between the saw blade base 2 and the rotating roller 15 or other objects, thereby preventing damage to the equipment.

[0050] In some embodiments, the guide assembly 4 includes a first mounting plate 41 connected to the first drive assembly or the second drive assembly 5. One end of the first mounting plate 41 extends toward the end near the saw blade base 2 to form a second mounting plate 43. A mounting post 45 is provided in the middle of the second mounting plate 43. A guide bearing 48 is fitted outside the mounting post 45. A cover block 47 for pressing the inner bearing shell of the guide bearing 48 is provided at the end of the mounting post 45 away from the second mounting plate 43.

[0051] like Figure 1 , Figure 2 and Figure 6 As shown, the inner bearing shell of the guide bearing 48 is pressed by the cover block 47, so that the outer bearing shell of the guide bearing 48 is pressed and adhered to the saw blade base 2. During the upward movement of the saw blade base 2, the saw blade base 2 is guided to move upward, and the saw blade base 2 is restricted from tilting and deflection. In addition, the end of the mounting post 45 away from the cover block 47 is provided with a first stud 46, and the middle of the second mounting plate 43 is provided with a first screw hole 44 that is threaded to the first stud 46. The mounting post 45 and the guide bearing 48 can be removed for replacement and maintenance.

[0052] In some embodiments, the first driving assembly is a second cylinder 3 mounted at the bottom of the first cylinder 19, and the second driving assembly 5 includes two third cylinders 51 distributed along a second direction on both sides of the rotating roller 15 and disposed on the base plate 12. The piston rod ends of the second cylinder 3 and the third cylinder 51 are both connected to the first mounting plate 41 of the corresponding guide assembly 4; Figure 2 and Figure 3 As shown, cylinders are common propulsion devices with a variety of models, making it easy to purchase the appropriate size and promote their use. The original welding machine 1 also uses cylinders for clamping, for example, the first cylinder 19 is used to drive the clamping wheel 18 to clamp the saw blade base 2 during the welding process.

[0053] In some embodiments, a third mounting plate 31 is detachably mounted on the bottom end of the first cylinder 19 by bolts, and a second cylinder 3 is detachably mounted on the bottom end of the third mounting plate 31 by bolts. The second drive assembly 5 further includes a rectangular connecting rod 52 integrally formed with the first mounting plate 41. The rectangular connecting rod 52 is detachably connected to the piston rod end of the third cylinder 51. A telescopic guide block 53 is detachably mounted on the end of the third cylinder 51 away from the base plate 12. The telescopic guide block 53 has a telescopic guide channel 54 extending in a first direction and adapted to the rectangular connecting rod 52. Figure 3 and Figure 5 As shown, each corner of the third cylinder 51 is provided with a third countersunk hole 513, and each corner of the telescopic guide block 53 is provided with a second countersunk hole 512 corresponding to the third countersunk hole 513. The telescopic guide block 53 and the third cylinder 51 are installed on the base plate 12 of the machine body by passing bolts through the second countersunk hole 512 and the third countersunk hole 513, so as to realize the detachable installation of the telescopic guide block 53 and the third cylinder 51.

[0054] The second cylinder 3 is a double-rod cylinder; such as Figure 2 and Figure 4 As shown, the double-rod cylinder is a type of cylinder with two piston rods, thus it can stably push the corresponding first mounting plate 41. The third cylinder 51, due to the limitation of the rotating roller 15, adopts a single-rod cylinder. Therefore, the rectangular connecting rod 52 is restricted by the telescopic guide channel 54 to ensure that the piston rod of the third cylinder 51 will not rotate during the movement, thereby achieving the purpose of stably pushing the corresponding first mounting plate 41. Ultimately, this ensures the stable movement of the guide bearing 48 and prevents the axis of the guide bearing 48 from being misaligned. Furthermore, the first mounting plate 41 is provided with a first countersunk hole 42 corresponding to the number of piston rods. The piston bolt passes through the first countersunk hole 42 and is threaded to the piston end screw hole on the piston rod, realizing the detachable installation of the first mounting plate 41. In addition, the rectangular connecting rod 52 is provided with a mating through hole 511 for the piston bolt to pass through.

[0055] In some embodiments, the telescopic guide block 53 has a limiting structure at the end away from the third cylinder 51, the limiting structure including:

[0056] The upper limit position includes an upper limit through hole 56 provided on the first mounting plate 41, and an upper limit screw hole 55 provided on the telescopic guide block 53 near the saw blade base 2 end and corresponding to the upper limit through hole 56. The upper limit screw hole 55 is internally threaded with a limit bolt that passes through the upper limit through hole 56.

[0057] The third cylinder 51 has a top dead center and a bottom dead center. When the third cylinder 51 is in the top dead center state, the first mounting plate 41 abuts against the head of the limit bolt, and the guide bearing 48 abuts against the end surface of the saw blade base 2. When the third cylinder 51 retracts, it is in the bottom dead center state. Here, retraction refers to the action of the piston rod of the cylinder retracting inward and the exposed part becoming shorter. The aforementioned bottom dead center state is the state when the piston rod of the third cylinder 51 has retracted to the point where it can no longer retract, which is determined by the characteristics of the cylinder itself.

[0058] like Figure 3 and Figure 4 As shown, during use, the third cylinder 51 is activated to the upper dead center position, and the head of the first mounting plate 41 abuts against the limit bolt. At this time, the guide bearing 48 abuts against the end surface of the saw blade base 2, and the second cylinder 3 pushes the opposite guide bearing 48 to abut against the end surface of the saw blade base 2 to achieve the purpose of pressing. During this process, because the head of the first mounting plate 41 abuts against the limit bolt, it extends a fixed distance each time, ensuring that the saw blade base 2 can be pressed and guided at the same position each time it is raised or lowered, thus improving the consistency of the pressing and guiding position. In the lower dead center position, the first mounting plate 41 and the guide bearing 48 retract, which can avoid the rotating roller 15 and ensure that the rotating roller 15 can stably drive the rotation of the saw blade base 2.

[0059] In some embodiments, a dustproof structure is provided between the first mounting plate 41 and the telescopic guide block 53. The dustproof structure is used to prevent dust from entering the upper limit screw hole 55 or the telescopic guide channel 54, thus avoiding the situation where the limit bolt is difficult to remove. It also avoids the situation where dust enters the telescopic guide channel 54, causing the rectangular connecting rod 52 to wear or get stuck, thus ensuring the stable operation of the rectangular connecting rod 52.

[0060] In some embodiments, the dustproof structure includes:

[0061] The fixing part includes a reinforcing protrusion 57 located on the telescopic guide block 53 near the end of the saw blade base 2, and a mounting block 58 surrounding the side surface of the reinforcing protrusion 57. The side surface of the mounting block 58 near the edge of the telescopic guide block 53 is provided with a mounting groove 59. The edge of the mounting block 58 is provided with a third clearance opening corresponding to the second countersunk hole 512 to avoid the installation of the corresponding bolt. The mounting block 58 also has a fourth clearance opening corresponding to the position of the upper limit screw hole 55 to avoid the installation of the corresponding limit bolt.

[0062] The rubber protective sleeve 510 includes a rectangular ring sleeve fitted outside the mounting block 58, a snap-fit ​​edge 515 located at one end of the rectangular ring sleeve and capable of being snapped into the mounting groove 59, and a rubber cover located at the other end of the rectangular sleeve and in contact with the first mounting plate 41. The rubber cover has a first clearance opening 516 that fits with the rectangular connecting rod 52 and a second clearance opening 514 that fits with the upper limit through hole 56.

[0063] like Figure 3 and Figure 7 As shown, the first clearance opening 516 is for the rectangular connecting rod 52 to pass through, while the second clearance opening 514 is for the limit bolt to pass through. The rubber protective sleeve 510 can effectively prevent dust from entering the upper limit screw hole 55 or the telescopic guide channel 54, thus achieving the purpose of dust prevention. Furthermore, the snap-fit ​​edge 515 can snap into the mounting groove 59, which on the one hand facilitates the stability after installation, and on the other hand prevents the rectangular ring edge of the rubber protective sleeve 510 from deforming and lifting to form a large gap.

[0064] In some embodiments, a photoelectric switch 6 for monitoring the saw blade base 2 is provided on one side of a guide assembly 4. The second cylinder 3 and the third cylinder 51 are both connected to pneumatic components. The output end of the photoelectric switch 6 is electrically connected to the input end of the control module of the welding machine 1. The output end of the control module of the welding machine 1 is electrically connected to the input end of the pneumatic component. The control module of the welding machine 1 controls the operation of the pneumatic component, and then the pneumatic component controls the action of the second cylinder 3 and the third cylinder 51. Among them, the pneumatic component is a key component of the pneumatic system, mainly used to adjust and control the pressure, flow rate and flow direction of compressed air. The pneumatic components corresponding to the cylinder retraction and extension are common technologies, which will not be described in detail here.

[0065] like Figure 2As shown, the light emitted by the photoelectric switch 6 is directed towards the saw blade substrate 2. When there is no saw blade substrate 2, the light from the photoelectric switch 6 is not blocked, and the control module of the welding machine 1 does not activate the corresponding pneumatic components; the second cylinder 3 and the third cylinder 51 do not operate. However, when the saw blade substrate 2 blocks the light from the photoelectric switch 6, the control module of the welding machine 1 activates the corresponding pneumatic components. This causes the third cylinder 51 to first push the corresponding guide bearing 48 to fit against the saw blade substrate 2, and then causes the second cylinder 3 to push the corresponding guide bearing 48 to press the saw blade substrate 2 tightly. Finally, a stable compression state is formed under the action of the three guide bearings 48. The control module of the welding machine 1 is a programmable logic controller (PLC), which is a common circuit configuration. The placement is not described in detail here; furthermore, a connector 62 is installed on one end face of the telescopic guide block 53, and a connecting screw hole 61 is provided on one end face of the telescopic guide block 53. The connector 62 includes a first plate 621 connected to the end face of the telescopic guide block 53. The first plate 621 is provided with a through hole corresponding to the connecting screw hole 61. Ordinary hex bolts or socket head cap screws are used to pass through the connecting through hole 622 and connect to the connecting screw hole 61 to achieve the purpose of connecting the first plate 621 and the telescopic guide block 53. In addition, an L-shaped second plate 623 is provided on one side of the first plate 621. The photoelectric switch 6 is installed on the top of the L-shaped second plate 623, which facilitates the removal and replacement of the connector 62 and the photoelectric switch 6.

[0066] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0067] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A saw blade base lifting and positioning guide mechanism with a rotation-limiting function, mounted on a welding machine (1), the welding machine (1) including a frame (11), a first cylinder (19) being provided at the bottom of one end of the frame (11), and a base plate (12) being provided at the bottom of the other end, a rotating roller (15) being provided at the end face of the base plate (12) near the first cylinder (19), a saw blade base (2) being provided between the rotating roller (15) and the first cylinder (19), the axial direction of the saw blade base (2) being a first direction, characterized in that, The saw blade base lifting and positioning guide mechanism includes: The first drive unit includes a first drive assembly located at the bottom of the first cylinder (19) and a guide assembly (4) located at the end of the first drive assembly near the saw blade base (2) along the first direction. The second drive unit includes two guide components (4) distributed on both sides of the rotating roller (15) along the second direction. The base plate (12) is equipped with a second drive component (5) connected to the two guide components (4) near the end of the saw blade base (2). The guide assembly (4) includes a guide bearing (48), the axis of which is the second direction; the first drive assembly and the second drive assembly (5) are both used to drive the corresponding guide assembly (4) to move toward the saw blade base (2), causing the column surface of the guide bearing (48) to abut against the end surface of the saw blade base (2).

2. The saw blade base lifting and positioning guide mechanism with rotation restriction function according to claim 1, characterized in that, The guide assembly (4) includes a first mounting plate (41) connected to the first drive assembly or the second drive assembly (5). One end of the first mounting plate (41) extends towards the end near the saw blade base (2) to form a second mounting plate (43). The second mounting plate (43) has a mounting post (45) in the middle. The guide bearing (48) is fitted onto the mounting post (45). The end of the mounting post (45) away from the second mounting plate (43) has a cover block (47) for pressing the inner bearing shell of the guide bearing (48).

3. The saw blade base lifting and positioning guide mechanism with rotation restriction function according to claim 2, characterized in that, The first drive assembly is a second cylinder (3) mounted at the bottom of the first cylinder (19). The second drive assembly (5) includes two third cylinders (51) distributed along the second direction on both sides of the rotating roller (15) and mounted on the base plate (12). The piston rod ends of the second cylinder (3) and the third cylinder (51) are connected to the first mounting plate (41) of the corresponding guide assembly (4).

4. The saw blade base lifting and positioning guide mechanism with rotation restriction function according to claim 3, characterized in that, The second drive assembly (5) also includes a rectangular connecting rod (52) integrally formed with the first mounting plate (41). The rectangular connecting rod (52) is detachably connected to the piston rod end of the third cylinder (51). A telescopic guide block (53) is detachably installed on the end of the third cylinder (51) away from the base plate (12). The telescopic guide block (53) has a telescopic guide channel (54) extending in the first direction and adapted to the rectangular connecting rod (52). The second cylinder (3) is a double-rod cylinder.

5. The saw blade base lifting and positioning guide mechanism with rotation restriction function according to claim 4, characterized in that, The telescopic guide block (53) has a limiting structure at the end away from the third cylinder (51), and the limiting structure includes: The upper limit position includes an upper limit through hole (56) provided on the first mounting plate (41) and an upper limit screw hole (55) provided on the telescopic guide block (53) near the saw blade base (2) and corresponding to the upper limit through hole (56). The upper limit screw hole (55) is internally threaded with a limiting bolt that passes through the upper limit through hole (56). The third cylinder (51) has an upper dead center state and a lower dead center state. When the third cylinder (51) is in the upper dead center state, the first mounting plate (41) abuts against the head of the limit bolt. When the third cylinder (51) retracts, it is in the lower dead center state.

6. The saw blade base lifting and positioning guide mechanism with rotation restriction function according to claim 5, characterized in that, A dustproof structure is provided between the first mounting plate (41) and the telescopic guide block (53). The dustproof structure is used to prevent dust from entering the upper limit screw hole (55) or the telescopic guide channel (54).

7. The saw blade base lifting and positioning guide mechanism with rotation restriction function according to claim 6, characterized in that, The dustproof structure includes: The fixing part includes a reinforcing protrusion (57) provided on the telescopic guide block (53) near the end of the saw blade base (2), and a mounting block (58) surrounding the side surface of the reinforcing protrusion (57), wherein the side surface of the mounting block (58) near the edge of the telescopic guide block (53) is provided with a mounting groove (59). The rubber protective sleeve (510) includes a rectangular ring sleeve fitted outside the mounting block (58), a snap-fit ​​edge (515) located at one end of the rectangular ring sleeve and capable of being snapped into the mounting groove (59), and a rubber cover located at the other end of the rectangular sleeve and in contact with the first mounting plate (41). The rubber cover is provided with a first clearance opening (516) that fits into the rectangular connecting rod (52) and a second clearance opening (514) that fits into the upper limit through hole (56).

8. The saw blade base lifting and positioning guide mechanism with rotation restriction function according to claim 7, characterized in that, A photoelectric switch (6) for monitoring the saw blade substrate (2) is provided on one side of the guide assembly (4). The second cylinder (3) and the third cylinder (51) are both connected to the pneumatic components. The output end of the photoelectric switch (6) is electrically connected to the input end of the control module of the welding machine (1). The output end of the control module of the welding machine (1) is electrically connected to the input end of the pneumatic components. The control module of the welding machine (1) controls the operation of the pneumatic components, and then the pneumatic components control the action of the second cylinder (3) and the third cylinder (51).

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