An automatic grinding equipment for angle steel saw blades

Abstract

This application discloses an automatic grinding device for angle steel saw blades, relating to the technical field of metal processing equipment. It includes a base, a positioning shaft, a fixing structure, an angle steel saw blade feeding mechanism, a damping braking mechanism, and a grinding mechanism. The feeding mechanism drives the saw blade to rotate and controls each rotation by one tooth pitch angle, achieving precise feeding of the saw blade. The damping braking mechanism eliminates the rotational inertia of the saw blade, allowing it to stop accurately. The grinding mechanism precisely grinds each tooth of the saw blade, ensuring grinding quality and achieving automated grinding of angle steel saw blades, thus improving grinding efficiency and quality.

Description

Technical Field

[0001] This application relates to the technical field of metal processing equipment, and in particular to an automatic grinding device for angle steel saw blades. Background Technology

[0002] In the production and processing of angle steel, due to the high hardness of the material and the high intensity of the cutting work, the saw teeth of the circular saw blades used for cutting angle steel are prone to wear and chipping. To ensure cutting quality and efficiency, the saw blades must be regularly and precisely ground and repaired.

[0003] Currently, the grinding of angle steel saw blades in the industry largely relies on manual grinding or low-automation tooth grinding machines. Manual grinding is inefficient, labor-intensive, and makes it difficult to ensure consistency in the grinding angle and amount of each tooth, easily leading to deviations in parameters such as tooth height, rake angle, and clearance angle, affecting the saw blade's lifespan and cutting quality. While existing semi-automatic tooth grinding machines improve grinding efficiency and quality to some extent, they still require manual intervention in positioning and feeding operations, failing to achieve truly automated continuous operation and thus offering limited improvements in production efficiency. Summary of the Invention

[0004] To address the problems existing in the prior art, this application provides an automatic grinding device for angle steel saw blades.

[0005] This application provides an automatic grinding device for angle steel saw blades, which adopts the following technical solution:

[0006] An automatic angle steel saw blade grinding device includes: a base, providing a stable working foundation for the entire device; a positioning shaft, horizontally rotatable on the base, for mounting the angle steel saw blade to be ground; a fixing structure, for fixing the angle steel saw blade to be ground onto the positioning shaft; an angle steel saw blade feeding mechanism, mounted on the base, for pushing the angle steel saw blade to rotate and controlling the angle steel saw blade to rotate by one tooth pitch angle each time; a damping braking mechanism, mounted on the base and connected to the angle steel saw blade to be ground, for eliminating the rotational inertia when the angle steel saw blade is pushed to rotate by the feeding mechanism; and a grinding mechanism, for grinding each saw tooth on the angle steel saw blade.

[0007] Optionally, the angle steel saw blade feeding mechanism includes: a rocker arm, rotatably mounted on the base; a power source connected to the rocker arm for driving the rocker arm to reciprocate; a cantilever arm, hinged to the free end of the rocker arm; and a lever fixedly mounted on the cantilever arm, the front end of which has a beveled angle, and the lever relies on gravity to allow the beveled angle portion to naturally overlap the saw teeth of the angle steel saw blade; when the rocker arm swings forward, the lever engages in the tooth groove to push the saw blade to rotate; when the rocker arm swings backward, the lever slides along the back of the saw teeth and falls into the next tooth groove.

[0008] Optionally, the damping braking mechanism includes: an elastic steel plate, one end of which is mounted on the frame; a pressing member disposed on the elastic steel plate for abutting against the end face of the angle steel saw blade and applying a frictional damping force to the end face of the angle steel saw blade; and an adjusting component for adjusting the bending deformation of the elastic steel plate, thereby changing the normal pressure of the pressing member on the end face of the angle steel saw blade.

[0009] Optionally, the pressing component includes: a mounting bracket fixed to the elastic steel plate; a sliding block slidably disposed on the mounting bracket in a direction perpendicular to the plane of the elastic steel plate; a roller rotatably disposed at the end of the sliding block for abutting against the end face of the angle steel saw blade; an elastic element disposed between the mounting bracket and the sliding block for providing preload to press the roller against the end face of the angle steel saw blade; and a friction plate fixedly disposed on the mounting bracket and located between the roller and the elastic steel plate for providing frictional resistance to the rotation of the roller.

[0010] Optionally, the adjusting assembly includes an adjusting screw threaded to the base and two adjusting nuts threaded to the adjusting screw. The elastic steel plate is sleeved on the adjusting screw, and the two adjusting nuts are located on both sides of the elastic steel plate.

[0011] Optionally, the friction plate is detachably mounted on a mounting bracket, and the mounting bracket is provided with a mounting structure for fixing the friction plate.

[0012] Optionally, the mounting structure includes: a mounting guide rail, fixedly mounted on a mounting bracket; a mounting block, fixedly mounted on a friction plate and adapted to the mounting guide rail for insertion into the mounting guide rail; a locking block, rotatably mounted on the mounting guide rail, and having a limiting portion for abutting against the end of the mounting block to confine the mounting block within the mounting guide rail; and a torsion spring, mounted on the locking block, for providing a driving force to deflect the locking block toward the mounting block.

[0013] Optionally, the grinding mechanism includes: a lifting frame, which is slidably mounted on the base in the vertical direction via a linear guide pair; a driving element for driving the lifting frame to reciprocate in the vertical direction; a grinding head, which is rotatably mounted on the lifting frame via a bearing; a grinding wheel, which is coaxially fixedly mounted on the front end of the grinding head; and a motor for driving the grinding head and the grinding wheel to rotate.

[0014] Optionally, a vibration damping seat is fixedly installed on the base, and the vibration damping seat has an installation port. An installation sleeve is installed in the installation port, and the positioning shaft rotatably passes through the installation sleeve. End plates are fixedly installed at both ends of the installation sleeve, and vibration damping springs are respectively installed on both sides of the vibration damping seat to drive the end plates on the same side to slide away from the vibration damping seat. Multiple sliding grooves are provided along the circumference of the installation sleeve in the installation port, and a support block is slidably installed in each sliding groove. A support spring is also provided in each sliding groove to drive the support block to slide closer to the installation sleeve.

[0015] Optionally, each of the support blocks has multiple balls rotatably mounted near the end of the mounting sleeve, and the balls on the same support block are distributed along the length of the mounting sleeve. The side wall of the mounting sleeve has multiple grooves along the length of the mounting sleeve, and the grooves correspond one-to-one with the support blocks. Each ball on the support block is set in the corresponding groove and is rotatably connected to the mounting sleeve.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The base provides a stable working foundation for the equipment, ensuring its operational stability; the positioning shaft is used to install the angle steel saw blade, and the fixing structure secures the saw blade to the positioning shaft, making the saw blade firmly installed; the angle steel saw blade feed mechanism drives the saw blade to rotate and controls each rotation by one tooth pitch angle, achieving precise feeding of the saw blade; the damping braking mechanism eliminates the rotational inertia of the saw blade, allowing the saw blade to stop accurately; the grinding mechanism grinds each tooth of the saw blade, ensuring the grinding quality of the saw blade, and the whole system realizes automated grinding of the angle steel saw blade, improving grinding efficiency and quality.

[0018] 2. This application uses a power source to drive a rocker arm to reciprocate, which in turn moves a cantilever hinged to the free end of the rocker arm. Since the paddle is fixed to the cantilever, the beveled angle at the front end of the paddle naturally engages with the teeth of the angle steel saw blade under gravity. When the rocker arm swings forward, the paddle engages in the tooth groove to push the saw blade to rotate; when it swings backward, it slides along the back of the teeth and falls into the next tooth groove, thus achieving the function of pushing the angle steel saw blade to rotate and controlling its rotation by one tooth pitch angle each time. This improves the automation level of the angle steel saw blade rotation during grinding, replacing manual intervention in positioning, feeding, and other operations, and helps to achieve truly automated continuous operation of angle steel saw blade grinding, thereby improving production efficiency.

[0019] 3. This application provides a vibration damping seat on the machine base, with the positioning shaft rotating through the mounting sleeve. The end plates at both ends of the mounting sleeve, in conjunction with the vibration damping springs on both sides of the vibration damping seat, can buffer the axial vibration generated when the positioning shaft rotates. The support block and support spring in the circumferential groove inside the mounting opening can buffer the radial vibration generated when the positioning shaft rotates, thereby reducing the overall vibration of the equipment and ensuring the stability and accuracy of the angle steel saw blade grinding.

[0020] 4. This application uses multiple balls that are rotatably arranged at the end of the support block and a wheel groove corresponding to the support block is opened on the side wall of the mounting sleeve. The balls are arranged in the wheel groove and are in rolling connection with the mounting sleeve. This can further reduce the friction between the support block and the mounting sleeve, reduce wear, improve the smoothness and stability of the positioning shaft rotation, and thus help improve the accuracy and quality of angle steel saw blade grinding. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0022] Figure 2 This is a cross-sectional view of the structure of the vibration damping seat used in the embodiments of this application;

[0023] Figure 3 yes Figure 1 Enlarged view of section A;

[0024] Figure 4 This is a schematic diagram illustrating the structure of the crimping component according to an embodiment of this application;

[0025] Figure 5 This is a structural cross-sectional view used in the embodiments of this application to illustrate the installation structure.

[0026] Explanation of reference numerals in the attached drawings: 1. Base; 2. Positioning shaft; 21. Positioning block; 22. Support platform; 23. Limit nut; 3. Angle steel saw blade feed mechanism; 31. Rocker arm; 32. Power source; 33. Cantilever; 34. Paddle; 4. Damping braking mechanism; 41. Elastic steel plate; 42. Adjustment assembly; 421. Adjusting screw; 422. Adjusting nut; 43. Mounting bracket; 431. Mounting guide rail; 432. Locking block; 4321. Limit. 433. Torsion spring; 44. Sliding block; 45. Roller; 46. Elastic element; 47. Friction plate; 471. Mounting block; 5. Grinding mechanism; 51. Lifting frame; 52. Drive element; 53. Grinding head; 54. Grinding wheel; 55. Electric motor; 6. Vibration damping seat; 61. Mounting port; 62. Mounting sleeve; 621. End plate; 622. Wheel groove; 63. Vibration damping spring; 64. Support block; 641. Ball bearing; 65. Support spring. Detailed Implementation

[0027] The following will be combined with the appendix Figure 1 - Appendix Figure 5 The technical solutions in the embodiments of the present invention are clearly and completely described herein. The described embodiments are only possible technical implementations of the present invention and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of the present invention without creative effort, and these embodiments are also within the protection scope of the present invention.

[0028] This application mainly adopts a combination of components such as a base and a positioning shaft to realize automatic grinding of angle steel saw blades, thereby improving the grinding efficiency and quality of angle steel saw blades and achieving automated continuous operation. The following is a further detailed description of this application.

[0029] This application discloses an automatic grinding device for angle steel saw blades. (Refer to...) Figure 1 The system includes a base 1, a positioning shaft 2, a fixing structure, an angle steel saw blade feeding mechanism 3, a damping braking mechanism 4, and a grinding mechanism 5. The base 1 provides a stable working foundation for the entire device. The positioning shaft 2 is horizontally rotatable on the base 1 and is used to mount the angle steel saw blade to be ground. The fixing structure secures the angle steel saw blade to be ground onto the positioning shaft 2. The angle steel saw blade feeding mechanism 3, mounted on the base 1, pushes the angle steel saw blade to rotate and controls its rotation by one tooth pitch at a time. The damping braking mechanism 4, mounted on the base 1, connects to the angle steel saw blade to eliminate rotational inertia. The grinding mechanism 5 precisely grinds each tooth on the angle steel saw blade. This achieves automated grinding of the angle steel saw blade, improving grinding efficiency and quality. This is because the various mechanisms work together, forming a complete automated process from saw blade installation, rotation, braking to grinding, reducing manual intervention and ensuring consistency and precision in grinding.

[0030] Reference Figure 1 and Figure 2 Specifically, the base 1 is generally made of high-strength metal materials, such as cast steel, with a robust and stable structure capable of withstanding various forces and vibrations during equipment operation. A vibration damping seat 6 is fixedly mounted on the base 1. The vibration damping seat 6 has an installation opening 61, within which an installation sleeve 62 is installed. The positioning shaft 2 rotatably passes through the installation sleeve 62, and the positioning shaft 2 is connected to the installation sleeve 62 via a bearing. The installation sleeve 62 is generally made of alloy metal materials, possessing good wear resistance. End plates 621 are fixedly mounted at both ends of the installation sleeve 62. Vibration damping springs 63 are respectively installed on both sides of the vibration damping seat 6. One end of the vibration damping spring 63 abuts against the vibration damping seat 6, and the other end abuts against the end plate 621 on the same side, giving the end plate 621 an elastic tendency to slide away from the vibration damping seat 6.

[0031] Reference Figure 2Multiple grooves are provided along the circumference of the mounting sleeve 62 inside the mounting port 61. Typically, three grooves are provided, evenly spaced along the circumference of the mounting sleeve 62. A support block 64 is slidably installed in each groove, and a support spring 65 is also provided within the groove to drive the support block 64 in the corresponding groove to slide closer to the mounting sleeve 62. Through the installation of the vibration damping seat 6, and with the positioning shaft 2 rotatably passing through the mounting sleeve 62, the end plates 621 at both ends of the mounting sleeve 62, in conjunction with the vibration damping springs 63 on both sides of the vibration damping seat 6, can buffer the axial vibration generated when the positioning shaft 2 rotates. The support blocks 64 and support springs 65 in the circumferential grooves inside the mounting port 61 can buffer the radial vibration generated when the positioning shaft 2 rotates, thereby reducing the overall vibration of the equipment and ensuring the stability and accuracy of the angle steel saw blade grinding.

[0032] Reference Figure 2 Each support block 64 has multiple rotatable balls 641 rotatably mounted near the end of the mounting sleeve 62. These balls 641 on the same support block 64 are distributed along the length of the mounting sleeve 62. The sidewall of the mounting sleeve 62 has multiple grooves 622 along its length, each groove corresponding to a support block 64 and fitting with a ball 641. Each ball 641 on the support block 64 is positioned within its corresponding groove and is in rolling contact with the mounting sleeve 62. By using multiple rotatable balls 641 at the ends of the support blocks 64, and by positioning these balls within the grooves and in rolling contact with the mounting sleeve 62, the friction between the support blocks 64 and the mounting sleeve 62 is reduced, wear is decreased, and the smoothness and stability of the positioning shaft 2's rotation are improved. This, in turn, helps to improve the accuracy and quality of angle steel saw blade grinding.

[0033] Reference Figure 2 The positioning shaft 2 is typically made of alloy steel, which has high strength and wear resistance. It is cylindrical in shape and its surface is precision-machined to ensure accurate fit with the angle steel saw blade. The fixing structure includes a positioning block 21 on the side wall of the positioning shaft 2. The positioning block 21 is integrally formed with the positioning shaft 2 and is adapted to the inner hole of the angle steel saw blade. A support 22 is provided on the positioning block 21 to abut against the end face of the angle steel saw blade. The fixing structure also includes a limiting nut 23. An external thread adapted to the limiting nut 23 is provided on the side wall of the positioning shaft 2, on the side of the positioning block 21 away from the vibration damping seat 6. The angle steel saw blade to be ground is fitted onto the positioning block 21, and the limiting nut 23 is threaded onto the positioning shaft 2. As the limiting nut 23 is tightened, both ends of the angle steel saw blade abut against the support 22 and the limiting nut 23 respectively, thereby fixing the angle steel saw blade to the positioning shaft 2.

[0034] Reference Figure 1The grinding mechanism 5 includes a lifting frame 51, a drive element 52, a grinding head 53, a grinding wheel 54, and a motor 55. The lifting frame 51 is slidably mounted on the base 1 in the vertical direction via a linear guide pair; it can be made of cast iron and has good rigidity. The drive element 52 can be a cylinder or an electric actuator, used to drive the lifting frame 51 to reciprocate in the vertical direction. The grinding head 53 is rotatably mounted on the lifting frame 51 via bearings, and the grinding wheel 54 is coaxially fixed at the front end of the grinding head 53. The motor 55 drives the grinding head 53 and the grinding wheel 54 to rotate. The motor 55 can be an AC motor or a DC motor, selected according to different working requirements.

[0035] Reference Figure 1 and Figure 3 The angle steel saw blade feed mechanism 3 includes a rocker arm 31, a power source 32, a cantilever 33, and a lever 34. The rocker arm 31 is rotatably mounted on the base 1, and the power source 32 is connected to the rocker arm 31 to drive its reciprocating swing. The rocker arm 31 is typically made of aluminum alloy, which is lightweight and strong enough, and its shape can be straight or have a certain bending angle. The power source 32 can be a motor-driven crank-rocker mechanism or a hydraulic cylinder. The motor-driven crank-rocker mechanism is compact and easy to control; the hydraulic cylinder has a larger driving force. The cantilever 33 is hinged to the free end of the rocker arm 31 and can be made of steel. The lever 34 is bolted to the free end of the cantilever 33. The front end of the lever 34 has a beveled angle, and gravity allows the beveled angle to naturally overlap the saw teeth of the angle steel saw blade. The lever 34 can be made of stainless steel, which has good corrosion resistance. When the rocker arm 31 swings forward, the paddle 34 engages with the tooth groove, pushing the saw blade to rotate. When the rocker arm 31 swings backward, the paddle 34 slides along the back of the saw teeth and falls into the next tooth groove. This process is repeated to precisely control the angle steel saw blade to rotate by one tooth pitch each time.

[0036] Reference Figure 1 and Figure 4 The damping braking mechanism 4 eliminates the rotational inertia of the saw blade, allowing it to stop accurately. Specifically, the damping braking mechanism 4 includes an elastic steel plate 41, a pressing component, and an adjusting assembly 42. The elastic steel plate 41 is generally made of spring steel and has good elasticity. One end of it is mounted on the frame, and its shape can be long and narrow. The pressing component is disposed on the elastic steel plate 41 and is used to abut against the end face of the angle steel saw blade, applying frictional damping force to the end face of the angle steel saw blade, which can eliminate the rotational inertia when the angle steel saw blade is pushed and rotated by the feed mechanism 3. The adjusting assembly 42 is used to adjust the bending deformation of the elastic steel plate 41, thereby changing the normal pressure of the pressing component on the end face of the angle steel saw blade.

[0037] Reference Figure 1The adjusting assembly 42 includes an adjusting screw 421 threaded onto the machine base 1 and two adjusting nuts 422 threaded onto the adjusting screw 421. An elastic steel plate 41 is fitted onto the adjusting screw 421, and the two adjusting nuts 422 are located on opposite sides of the elastic steel plate 41. The angle of the elastic steel plate 41 can be adjusted using the two adjusting nuts 422, and the bending deformation of the elastic steel plate 41 can be changed by rotating the adjusting screw 421, thereby changing the normal pressure between the pressing component and the end face of the angle steel saw blade, and flexibly adjusting the friction damping force.

[0038] Reference Figure 4 Specifically, the pressing component includes a mounting bracket 43, a sliding block 44, a roller 45, an elastic element 46, and a friction plate 47. The mounting bracket 43 is fixed to the elastic steel plate 41; the sliding block 44 is slidably disposed on the mounting bracket 43 in a direction perpendicular to the plane of the elastic steel plate 41; the roller 45 is rotatably disposed at the end of the sliding block 44 for abutting against the end face of the angle steel saw blade; the elastic element 46 includes a spring steel sheet, which has a "U"-shaped structure and is disposed between the mounting bracket 43 and the sliding block 44, with one end fixedly disposed on the mounting bracket 43 and the other end abutting against the sliding block 44, providing preload for the roller 45 to press against the end face of the angle steel saw blade. In addition, the elastic element 46 can also be made of spring, elastic rubber, etc.; the friction plate 47 is fixedly mounted on the mounting bracket 43 and located between the roller 45 and the elastic steel plate 41. After the sliding block 44 drives the roller 45 to move a certain distance closer to the elastic steel plate 41, the friction plate 47 abuts against the roller 45. The friction plate 47 can provide frictional resistance to the rotation of the roller 45, and the bending deformation of the elastic steel plate 41 can be adjusted by adjusting the adjusting component 42, thereby adjusting the tightness between the friction plate 47 and the roller 45, so as to achieve precise control of the damping force.

[0039] Reference Figure 4 and Figure 5Specifically, since the friction plate 47 is prone to wear during long-term use, and in order to facilitate the replacement of the worn friction plate 47, the friction plate 47 is detachably mounted on the mounting bracket 43. The mounting bracket 43 is provided with a mounting structure for fixing the friction plate 47. Specifically, the mounting structure includes a mounting guide rail 431, a mounting block 471, a locking block 432, and a torsion spring 433. The mounting guide rail 431 is fixedly mounted on the mounting bracket 43; the mounting block 471 is fixedly mounted on the friction plate 47 and is adapted to the mounting guide rail 431, and can be inserted into the mounting guide rail 431; the side wall of the mounting guide rail 431 has a connection port, and the locking block 432 is rotatably mounted in the connection port of the mounting guide rail 431, and the free end of the locking block 432 is provided with a limiting part 4321, which is used to abut against the end of the mounting block 471 and restrict the mounting block 471 within the mounting guide rail 431; the torsion spring 433 is sleeved on the rotation shaft of the locking block 432, and is used to provide a driving force to deflect the locking block 432 toward the mounting block 471. The limiting part 4321 is provided with a chamfer to facilitate the mounting block 471 sliding into the mounting guide rail 431.

[0040] The implementation principle of the automatic angle steel saw blade grinding device in this embodiment is as follows: Through the coordinated work of various mechanisms, the automatic angle steel saw blade grinding device achieves automated grinding of angle steel saw blades, improving grinding efficiency and quality. The base 1 provides a stable working foundation for the device, ensuring operational stability. The positioning shaft 2 is used to install the angle steel saw blade; the fixing structure secures the saw blade to the positioning shaft 2, ensuring stable installation. The angle steel saw blade feeding mechanism 3 pushes the saw blade to rotate and controls each rotation by one tooth pitch angle, achieving precise feeding. The damping braking mechanism 4 eliminates the rotational inertia of the saw blade, allowing it to stop accurately. The grinding mechanism 5 precisely grinds each tooth of the saw blade, ensuring grinding quality. Simultaneously, the vibration damping seat 6 reduces vibration during operation, improving grinding quality and device stability. Compared to existing technologies, this device significantly improves grinding efficiency, ensures consistent grinding quality for each tooth, and reduces manual labor intensity, demonstrating significant practicality and innovation.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic grinding device for angle steel saw blades, characterized in that, include: The base (1) provides a stable working foundation for the entire equipment; The positioning shaft (2) is horizontally rotatably mounted on the machine base (1) and is used to install the angle steel saw blade to be ground; A fixed structure is used to fix the angle steel saw blade to be ground onto the positioning shaft (2); Angle steel saw blade feed mechanism (3) is installed on the machine base (1) to drive the angle steel saw blade to rotate and control the angle steel saw blade to rotate by one tooth pitch each time; Damping braking mechanism (4) is installed on the base (1) and connected to the angle steel saw blade to be ground, used to eliminate the rotational inertia when the angle steel saw blade feed mechanism (3) pushes it to rotate; The grinding mechanism (5) is used to grind the teeth on the angle steel saw blade; The damping braking mechanism (4) includes: A flexible steel plate (41) is mounted on the frame at one end; A pressing component is provided on the elastic steel plate (41) for abutting against the end face of the angle steel saw blade and applying frictional damping force to the end face of the angle steel saw blade; Adjustment component (42) is used to adjust the bending deformation of the elastic steel plate (41), thereby changing the positive pressure of the pressing member on the end face of the angle steel saw blade; The crimping member includes: Mounting bracket (43) is fixed to the elastic steel plate (41); The sliding block (44) is slidably disposed on the mounting bracket (43) in a direction perpendicular to the plane of the elastic steel plate (41); Roller (45) is rotatably disposed at the end of the sliding block (44) and is used to abut against the end face of the angle steel saw blade; An elastic element (46) is disposed between the mounting bracket (43) and the sliding block (44) to provide a preload that presses the roller (45) against the end face of the angle steel saw blade; Friction plate (47) is fixedly mounted on the mounting bracket (43) and located between the roller (45) and the elastic steel plate (41) to provide frictional resistance to the rotation of the roller (45); A vibration damping seat (6) is fixedly installed on the base (1). An installation port (61) is opened on the vibration damping seat (6). An installation sleeve (62) is installed in the installation port (61). The positioning shaft (2) is rotatably inserted into the installation sleeve (62). Both ends of the mounting sleeve (62) are fixedly provided with end plates (621), and the two sides of the damping seat (6) are respectively provided with damping springs (63) for driving the end plates (621) on the same side to slide away from the damping seat (6). Multiple sliding grooves are provided in the mounting port (61) along the circumference of the mounting sleeve (62). A support block (64) is slidably provided in each sliding groove. A support spring (65) is also provided in the sliding groove to drive the support block (64) to slide closer to the mounting sleeve (62).

2. The automatic grinding equipment for angle steel saw blades according to claim 1, characterized in that, The angle steel saw blade feeding mechanism (3) includes: The rocker arm (31) is rotatably mounted on the base (1); A power source (32) is connected to the rocker arm (31) and is used to drive the rocker arm (31) to swing back and forth. The cantilever (33) is hinged to the free end of the rocker arm (31); A paddle (34) is fixedly mounted on the cantilever (33). The front end of the paddle (34) is provided with a bevel angle, and the paddle (34) relies on gravity to allow the bevel angle part to naturally overlap the saw teeth of the angle steel saw blade. When the rocker arm (31) swings forward, the paddle (34) is engaged in the tooth valley to push the saw blade to rotate. When the rocker arm (31) swings backward, the paddle (34) slides along the back of the saw teeth and falls into the next tooth valley.

3. The automatic grinding equipment for angle steel saw blades according to claim 1, characterized in that, The adjustment assembly (42) includes an adjustment screw (421) threaded to the base (1) and two adjustment nuts (422) threaded to the adjustment screw (421). The elastic steel plate (41) is sleeved on the adjustment screw (421), and the two adjustment nuts (422) are located on both sides of the elastic steel plate (41).

4. The automatic grinding equipment for angle steel saw blades according to claim 1, characterized in that, The friction plate (47) is detachably mounted on the mounting bracket (43), and the mounting bracket (43) is provided with a mounting structure for fixing the friction plate (47).

5. The automatic grinding equipment for angle steel saw blades according to claim 4, characterized in that, The mounting structure includes: The mounting rail (431) is fixedly mounted on the mounting bracket (43); The mounting block (471) is fixedly mounted on the friction plate (47) and is adapted to the mounting guide rail (431) for insertion into the mounting guide rail (431); A locking block (432) is rotatably mounted on a mounting guide rail (431), and a limiting part (4321) is provided on the locking block (432) for abutting against the end of the mounting block (471) and restricting the mounting block (471) within the mounting guide rail (431); A torsion spring (433), disposed on the locking block (432), is used to provide a driving force to deflect the locking block (432) toward the mounting block (471).

6. The automatic grinding equipment for angle steel saw blades according to claim 1, characterized in that, The polishing mechanism (5) includes: The lifting frame (51) is slidably mounted on the base (1) in the vertical direction via a linear guide pair; A driving element (52) is used to drive the lifting frame (51) to reciprocate in the vertical direction; The grinding head (53) is rotatably mounted on the lifting frame (51) via a bearing; A grinding wheel (54) is coaxially fixed at the front end of the grinding head (53); An electric motor (55) is used to drive the grinding head (53) and grinding wheel (54) to rotate.

7. The automatic grinding equipment for angle steel saw blades according to claim 1, characterized in that, Each of the support blocks (64) has multiple balls (641) rotatably disposed at the end near the mounting sleeve (62), and the balls (641) on the same support block (64) are distributed along the length of the mounting sleeve (62). The side wall of the mounting sleeve (62) is provided with multiple wheel grooves (622) along the length of the mounting sleeve (62). The wheel grooves (622) correspond one-to-one with the support blocks (64), and each ball (641) on the support block (64) is disposed in the corresponding wheel groove (622) and is rotatably connected to the mounting sleeve (62).

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