Saw blade laser welding automatic centering clamping tool

Abstract

The utility model discloses a saw blade laser welding automatic centering clamping frock, including the base plate, the centre of base plate has the interference fit with the adaptation bushing, and the inner wall threaded connection of adaptation bushing has the positioning pipe, utilize adaptation bushing to adapt the positioning pipe of different size, realize the installation fixed of different size saw blade, the inside of positioning pipe is provided with the positioning assembly, and the bottom of positioning assembly is provided with the saw blade piece of compacting, to utilize the positioning assembly to the center hole of saw blade piece realizes the compacting fixed of positioning. The utility model realizes accurate clamping and automatic centering to different size saw blade, and promotes the efficiency and quality of saw blade laser welding processing.

Description

Technical Field

[0001] This utility model relates to the field of saw blade processing application technology, and in particular to an automatic centering and clamping fixture for laser welding of saw blades. Background Technology

[0002] In the laser welding process of saw blades, precise positioning and stable clamping of the saw blade are key to ensuring welding quality.

[0003] Traditional saw blade clamping fixtures often suffer from poor adaptability, only able to fix saw blades of a single size. When processing saw blades of different specifications, the entire fixture needs to be changed frequently, which not only increases the complexity of the operation process but also leads to a significant reduction in processing efficiency. At the same time, traditional fixtures lack sufficient positioning accuracy for the center hole of the saw blade, which can easily cause saw blade misalignment, leading to welding position deviations and affecting the performance and service life of the saw blade. They cannot meet the high precision and high efficiency requirements of modern saw blade processing.

[0004] Therefore, this utility model proposes an automatic centering and clamping fixture for laser welding of saw blades. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an automatic centering and clamping fixture for laser welding of saw blades, so as to solve the problems of poor adaptability and low positioning accuracy of traditional fixtures, realize the precise clamping and automatic centering of saw blades of different sizes, and improve the efficiency and quality of laser welding of saw blades.

[0006] To solve the above technical problems, the present invention adopts a technical solution as follows: providing an automatic centering and clamping fixture for laser welding of saw blades, including a base plate, wherein an adapter bushing is interference-connected at the center of the base plate, and a positioning tube is threadedly connected to the inner wall of the adapter bushing. The adapter bushing is used to adapt to positioning tubes of different sizes, thereby realizing the installation and fixing of saw blades of different sizes. The positioning tube is equipped with a positioning component inside, and a saw blade is pressed against the bottom of the positioning component so as to achieve positioning, pressing and fixing of the saw blade with the center hole of the positioning component.

[0007] The present invention is further configured such that: a plurality of anti-slip pads and mounting holes are uniformly fixedly connected in the circumferential direction at the bottom of the substrate near the outer peripheral wall, and the plurality of anti-slip pads and mounting holes are distributed alternately.

[0008] Through the above technical solutions, the anti-slip pad can increase the friction between the substrate and the workbench surface, preventing the tooling from shifting due to vibration during the saw blade welding process and ensuring the overall stability of the tooling; the mounting holes provide mounting points for the fixed connection between the tooling and the workbench. By passing bolts and other connectors through the mounting holes, the substrate is fixed to the workbench, further enhancing the fixing effect of the tooling. The alternating distribution of the two can ensure the anti-slip and fixing functions while making the bottom of the substrate evenly stressed, avoiding local stress concentration that could lead to substrate deformation.

[0009] The present invention is further configured such that: a positioning hole is provided at the center of the substrate, and the adapter bushing is installed inside the positioning hole.

[0010] Through the above technical solution, the positioning hole provides a precise installation reference for the adapter bushing, ensuring that the adapter bushing can be coaxially set with the base plate, thereby ensuring that the central axis of the subsequent positioning tube, positioning component and saw blade is consistent, laying the foundation for automatic centering of the saw blade; at the same time, the interference fit method can make the adapter bushing and the base plate fit tightly, avoiding relative looseness between the two, and ensuring the overall structural stability and positioning accuracy of the tooling.

[0011] The present invention is further configured such that: the positioning component includes a mounting rod, the bottom of the mounting rod is fixedly connected to an adjusting screw, and the adjusting screw is threaded to the inner bottom of the positioning tube; the side wall of the mounting rod is symmetrically and movably connected to a locking block near the bottom position, and the two locking blocks are pressed against the saw blade.

[0012] Through the above technical solution, the threaded engagement between the adjusting screw and the positioning tube allows for the adjustment of the vertical position of the mounting rod inside the positioning tube, thereby driving the locking blocks to move synchronously to adapt to the clamping requirements of saw blades of different thicknesses; the symmetrically arranged locking blocks can apply uniform pressure from both sides of the central hole of the saw blade, keeping the center of the saw blade aligned with the center of the positioning tube, achieving automatic centering of the saw blade, while the clamping state can prevent the saw blade from shaking during welding, ensuring the accuracy of the welding position.

[0013] The present invention is further configured such that: an adjusting block is threadedly connected to the outer wall of the mounting rod near the middle position, a stabilizing spring is abutted against the top of the adjusting block, and the top of the stabilizing spring abuts against a fixing block fixedly connected to the inner wall of the positioning tube near the top position.

[0014] Through the above technical solution, rotating the adjusting block can change its vertical position on the mounting rod, thereby adjusting the compression of the stabilizing spring: when the spring compression increases, its downward elastic force on the adjusting block is enhanced, which can indirectly increase the clamping force of the clamping block on the saw blade and improve clamping stability; when the spring compression decreases, the clamping force is reduced accordingly, making it easier to pick up and put down the saw blade. At the same time, the stabilizing spring can play a buffering role, absorbing some of the vibration generated during the welding process, preventing the vibration from being transmitted to the saw blade and causing positioning deviation, and further ensuring welding accuracy.

[0015] The present invention is further configured such that: the two card blocks respectively pass through the positioning tube and the corresponding limiting groove is opened therein, and are slidably connected to the limiting groove; the opposite surfaces of the two card blocks are fixedly connected to the sliding rods, and are arranged in a relatively staggered manner; the two sliding rods pass through the mounting rods, and the outer walls of the two sliding rods are wrapped with tension springs; and the end faces of the two mounting rods are fixedly connected to the end plates.

[0016] Through the above technical solution, the limiting groove restricts the sliding direction of the clamping block, ensuring that the clamping block can only move in the radial direction of the positioning tube, avoiding the clamping block from shifting or rotating during movement, and ensuring the stability and centering of the saw blade. The sliding cooperation between the slide rod and the mounting rod provides guidance for the radial movement of the clamping block, while the elastic force of the tension spring makes the two clamping blocks always tend to move closer to each other. When the center hole of the saw blade is fitted into the outside of the clamping block, the tension spring can drive the clamping block to automatically clamp the center hole of the saw blade, achieving rapid centering and clamping. The end plate can prevent the slide rod from coming out of the mounting rod, ensuring the integrity of the connection between the clamping block and the mounting rod.

[0017] The present invention is further configured such that the top of the mounting rod is threadedly connected to the adjusting end cap at the top of the positioning tube.

[0018] Through the above technical solution, the threaded connection between the adjusting end cap and the positioning tube can seal the top opening of the positioning tube, preventing debris, dust and other impurities generated during the welding process from entering the interior of the positioning tube, and avoiding impurities affecting the movement flexibility and positioning accuracy of the positioning component; at the same time, the threaded engagement between the mounting rod and the adjusting end cap can further fix the position of the mounting rod, forming a double positioning with the adjusting screw at the bottom, preventing the mounting rod from loosening on its own after moving up and down, ensuring the stability of the clamping block in holding the saw blade, and further improving the overall positioning accuracy of the tooling.

[0019] The beneficial effects of this utility model are as follows: 1. The automatic centering and clamping fixture for laser welding of saw blades proposed in this utility model is designed with an adaptable bushing and a replaceable positioning tube. By utilizing the adaptability of the adaptable bushing to positioning tubes of different sizes, it enables the rapid installation and fixing of saw blades of different specifications without the need to replace the entire fixture, which greatly simplifies the operation process and significantly improves the adaptability and efficiency of saw blade processing. 2. The automatic centering and clamping fixture for laser welding of saw blades proposed in this utility model can automatically and accurately position and clamp the center hole of the saw blade through the coordinated action of the symmetrical locking blocks, tension springs and adjustment structures in the positioning component. At the same time, with the buffering and vibration reduction function of the stabilizing spring, it can effectively avoid the offset and shaking of the saw blade during the welding process, ensure the centering accuracy and welding quality of the laser welding of the saw blade, and improve the processing qualification rate and performance of the saw blade. Attached Figure Description

[0020] Figure 1 This is a first structural diagram of an automatic centering and clamping fixture for laser welding of saw blades according to this utility model; Figure 2 This is a second structural diagram of an automatic centering and clamping fixture for laser welding of saw blades according to this utility model; Figure 3 This is a structural diagram of the positioning tube and positioning assembly in an automatic centering and clamping fixture for laser welding of saw blades according to this utility model; Figure 4 This is a cross-sectional view of the positioning tube and positioning assembly in an automatic centering and clamping fixture for laser welding of saw blades according to this utility model. Figure 5 This is a structural diagram of the positioning tube in an automatic centering and clamping fixture for laser welding of saw blades according to this utility model; Figure 6 This is a structural diagram of the positioning component in an automatic centering and clamping fixture for laser welding of saw blades according to this utility model; Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Base plate; 11. Anti-slip pad; 12. Mounting hole; 13. Positioning hole; 2. Adaptor bushing; 3. Positioning tube; 31. Limiting groove; 32. Fixing block; 33. Adjusting end cap; 4. Positioning assembly; 41. Mounting rod; 42. Adjusting screw; 43. Locking block; 431. Slide rod; 432. Tension spring; 433. End plate; 44. Adjusting block; 45. Stabilizing spring; 5. Saw blade. Detailed Implementation

[0022] 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.

[0023] like Figure 1 and Figure 2As shown, an automatic centering and clamping fixture for laser welding of saw blades includes a base plate 1. Multiple anti-slip pads 11 and mounting holes 12 are uniformly fixedly connected in the circumferential direction at the bottom of the base plate 1 near its outer peripheral wall. The anti-slip pads 11 and mounting holes 12 are distributed alternately. The anti-slip pads 11 increase the friction between the base plate 1 and the worktable surface, preventing displacement of the fixture due to vibration during saw blade welding and ensuring the overall stability of the fixture. The mounting holes 12 provide mounting points for the fixture's fixed connection to the worktable. The base plate 1 is fixed to the worktable by bolts or other connectors passing through the mounting holes 12, further enhancing the fixture's fixing effect. The alternating distribution of these two types of fixtures ensures both anti-slip and fixing functions while ensuring uniform force distribution on the bottom of the base plate 1, preventing localized stress concentration that could lead to substrate deformation. A positioning hole 13 is provided at the center of the substrate 1. The adapter bushing 2 is installed inside the positioning hole 13. The positioning hole 13 provides a precise installation reference for the adapter bushing 2, ensuring that the adapter bushing 2 can be coaxially set with the substrate 1. This ensures that the central axis of the subsequent positioning tube 3, positioning component 4 and saw blade component 5 are consistent, laying the foundation for automatic centering of the saw blade. At the same time, the interference fit allows the adapter bushing 2 to fit tightly with the substrate 1, avoiding relative looseness between the two and ensuring the overall structural stability and positioning accuracy of the tooling. An adapter bushing 2 is interference-fitted at the center of the substrate 1, and a positioning tube 3 is threadedly connected to the inner wall of the adapter bushing 2. The adapter bushing 2 is used to accommodate positioning tubes 3 of different sizes, so that saw blades of different sizes can be installed and fixed.

[0024] like Figures 3-7 As shown, a positioning component 4 is provided inside the positioning tube 3, and a saw blade 5 is pressed against the bottom of the positioning component 4 so as to achieve positioning, pressing and fixing of the saw blade 5 by using the positioning component 4 to the center hole of the saw blade 5. The positioning component 4 includes a mounting rod 41, with an adjusting screw 42 fixedly connected to the bottom of the mounting rod 41. The adjusting screw 42 is threadedly connected to the inner bottom of the positioning tube 3. The side wall of the mounting rod 41 is symmetrically and movably connected to two locking blocks 43 near the bottom. The two locking blocks 43 press against the saw blade 5. The threaded engagement between the adjusting screw 42 and the positioning tube 3 allows for the adjustment of the vertical position of the mounting rod 41 inside the positioning tube 3, thereby driving the locking blocks 43 to move synchronously to meet the clamping requirements of saw blades 5 of different thicknesses. The symmetrically arranged locking blocks 43 can apply uniform pressure from both sides of the central hole of the saw blade 5, keeping the center of the saw blade 5 aligned with the center of the positioning tube 3, achieving automatic centering of the saw blade. At the same time, the pressing state can prevent the saw blade from shaking during welding, ensuring the accuracy of the welding position. An adjusting block 44 is threadedly connected to the outer wall of the mounting rod 41 near the middle. A stabilizing spring 45 is fitted against the top of the adjusting block 44, and the top of the stabilizing spring 45 is fitted against a fixing block 32 fixedly connected to the inner wall of the positioning tube 3 near the top. Rotating the adjusting block 44 can change its vertical position on the mounting rod 41, thereby adjusting the compression of the stabilizing spring 45: when the spring compression increases, its downward elastic force on the adjusting block 44 is enhanced, which can indirectly increase the clamping force of the clamping block 43 on the saw blade 5 and improve the clamping stability; when the spring compression decreases, the clamping force is reduced accordingly, which facilitates the removal and placement of the saw blade 5. At the same time, the stabilizing spring 45 can play a buffering role, absorbing some of the vibration generated during the welding process, avoiding the vibration from being transmitted to the saw blade 5 and causing positioning deviation, further ensuring welding accuracy. Two locking blocks 43 pass through the corresponding limiting grooves 31 on the positioning tube 3 and are slidably connected to the limiting grooves 31. The limiting grooves 31 restrict the sliding direction of the locking blocks 43, ensuring that the locking blocks 43 can only move in the radial direction of the positioning tube 3, preventing the locking blocks 43 from shifting or rotating during movement, and ensuring the stability and centering of the saw blade 5. The opposing surfaces of the two locking blocks 43 are fixedly connected to sliding rods 431, which are staggered relative to each other. Both sliding rods 431 pass through the mounting rod 41, and their outer walls are wrapped with tension rods. The sliding engagement of spring 432, slide bar 431 and mounting rod 41 provides guidance for the radial movement of the locking block 43, while the elastic force of spring 432 can make the two locking blocks 43 always tend to move closer to each other. When the center hole of the saw blade 5 is fitted into the outside of the locking block 43, spring 432 can drive the locking block 43 to automatically clamp the center hole of the saw blade, realizing quick centering and clamping. The end faces of the two mounting rods 41 are fixedly connected with end plates 433. The end plates 433 can prevent the slide bar 431 from coming out of the mounting rod 41, ensuring the integrity of the connection between the locking block 43 and the mounting rod 41. The top of the mounting rod 41 is threadedly connected to the adjusting end cap 33 at the top of the positioning tube 3. The threaded connection between the adjusting end cap 33 and the positioning tube 3 can seal the opening at the top of the positioning tube 3, preventing debris, dust and other impurities generated during the welding process from entering the interior of the positioning tube 3, and avoiding impurities affecting the movement flexibility and positioning accuracy of the positioning component 4. At the same time, the threaded engagement between the mounting rod 41 and the adjusting end cap 33 can further fix the position of the mounting rod 41, forming a double positioning with the adjusting screw 42 at the bottom, preventing the mounting rod 41 from loosening on its own after moving up and down, ensuring the stability of the clamping block 43 in holding the saw blade 5, and further improving the overall positioning accuracy of the tooling.

[0025] In use, this utility model is based on a base plate 1 for support. The adapter bushing 2, which is interference-fitted in the central positioning hole 13, can be threaded to fit positioning tubes 3 of different sizes to meet the installation requirements of saw blade parts 5 of different specifications. After the saw blade part 5 is placed, the positioning component 4 inside the positioning tube 3 plays a core role. The adjusting screw 42 at the bottom of the mounting rod 41 engages with the threaded bottom of the positioning tube 3, which can drive the mounting rod 41 to move up and down, so that the symmetrical locking blocks 43 on the side wall extend into the central hole of the saw blade part 5. The locking blocks 43 slide with the mounting rod 41 through the sliding rod 431. The saw blades are connected and brought closer together under the contraction force of the tension spring 432, achieving automatic centering and clamping. At the same time, the adjusting block 44 on the mounting rod 41 can adjust the compression of the stabilizing spring 45, which enhances the clamping stability of the clamping block 43 and buffers welding vibration through the spring force. The top of the mounting rod 41 is threaded with the adjusting end cap 33 of the positioning tube 3 to further fix the position of the mounting rod 41. The anti-slip pad 11 and the mounting hole 12 at the bottom of the base plate 1 ensure the stability of the entire fixture on the worktable, ultimately achieving precise centering and stable clamping of the saw blade to meet the requirements of laser welding.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic centering and clamping fixture for laser welding of saw blades, comprising a substrate (1), characterized in that: The base plate (1) is interference-fitted with an adapter bushing (2) at its center, and the inner wall of the adapter bushing (2) is threaded with a positioning tube (3). The adapter bushing (2) is used to accommodate positioning tubes (3) of different sizes, so that saw blades of different sizes can be installed and fixed. The positioning tube (3) is provided with a positioning component (4) inside, and a saw blade (5) is pressed at the bottom of the positioning component (4) so ​​as to use the positioning component (4) to position and press the saw blade (5) in the center hole.

2. The automatic centering and clamping fixture for laser welding of saw blades according to claim 1, characterized in that: The bottom of the substrate (1) near the outer peripheral wall is uniformly fixed with multiple anti-slip pads (11) and mounting holes (12) in the circumferential direction, and the multiple anti-slip pads (11) and mounting holes (12) are distributed alternately.

3. The automatic centering and clamping fixture for laser welding of saw blades according to claim 1, characterized in that: A positioning hole (13) is provided at the center of the substrate (1), and the adapter bushing (2) is installed inside the positioning hole (13).

4. The automatic centering and clamping fixture for laser welding of saw blades according to claim 1, characterized in that: The positioning component (4) includes a mounting rod (41), the bottom of which is fixedly connected to an adjusting screw (42), and the adjusting screw (42) is threaded to the inner bottom of the positioning tube (3). The side wall of the mounting rod (41) is symmetrically and movably connected to a locking block (43) near the bottom, and the two locking blocks (43) are pressed against the saw blade (5).

5. The automatic centering and clamping fixture for laser welding of saw blades according to claim 4, characterized in that: An adjusting block (44) is threadedly connected to the outer wall of the mounting rod (41) near the middle position. A stabilizing spring (45) is abutted against the top of the adjusting block (44), and the top of the stabilizing spring (45) abuts against a fixing block (32) fixedly connected to the inner wall of the positioning tube (3) near the top position.

6. The automatic centering and clamping fixture for laser welding of saw blades according to claim 4, characterized in that: The two locking blocks (43) pass through the positioning tube (3) and the corresponding limiting groove (31) respectively, and are slidably connected to the limiting groove (31). The opposing surfaces of the two locking blocks (43) are fixedly connected to the sliding rods (431), and are arranged in a relatively staggered manner. The two sliding rods (431) pass through the mounting rod (41), and the outer walls are wrapped with tension springs (432). The end faces of the two mounting rods (41) are fixedly connected to the end plates (433).

7. The automatic centering and clamping fixture for laser welding of saw blades according to claim 6, characterized in that: The top of the mounting rod (41) is threaded to the adjusting end cap (33) at the top of the positioning tube (3).

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