Saw blade processing positioning device

Abstract

The present invention discloses a saw blade processing and positioning device in the field of saw blade processing technology, comprising a circular base, a circle center positioning mechanism, four magnetic units and four slot clamping mechanisms, wherein the slot clamping mechanism comprises an external connecting frame arranged on the outer side of the circular base, a first push rod is arranged on the external connecting frame, and a slot clamping mechanism capable of being displaced on the upper surface of the circular base is arranged on the output end of the first push rod; wherein the slot clamping mechanism can be elastically clamped into the outer cutting groove from the bottom end of the circular saw blade, and the four first push rods can control each of the slot clamping mechanisms to synchronously extend to clamp the outer cutting groove of the circular saw blade; by arranging four slot clamping mechanisms between the four magnetic units, a card which can elastically rise to be able to extend into the outer cutting groove of the circular saw blade is arranged on the slot clamping mechanism, and the four slot clamping mechanisms move relatively toward the center to clamp the outer cutting groove of the circular saw blade.

Description

Technical Field

[0001] The invention relates to the technical field of metal saw blade processing, and in particular to a saw blade processing positioning device. Background Art

[0002] A circular saw blade is a circular saw blade with a sharp cutting edge on the outer circle and a center hole in the center. The center hole of the circular saw blade is the mounting hole for installing the mechanical spindle. During the manufacturing process of the circular saw blade, the center hole of the circular saw blade is first obtained by rough machining and then corrected by a subsequent process, that is, the hole is reamed by a reamer to ensure the installation effect with the spindle of the woodworking machinery during use and to ensure the concentricity effect under high-speed rotation.

[0003] As mentioned above, reaming the center hole of a circular saw blade is usually performed on a vertical drilling machine. During the entire reaming process, a worker manually places a circular saw blade to be reamed on the drilling table of the vertical drilling machine, and the reamer of the vertical drilling machine performs the reaming. After the reaming is completed, the worker removes it from the drilling table and places the next circular saw blade to be reamed on the drilling table, and repeats the process.

[0004] There are still the following problems in the existing operation process that need to be improved:

[0005] (1) When placing a circular saw blade on a vertical drilling machine, it is necessary to manually correct the position of the circular saw blade so that the inner hole of the circular saw blade is directly below the milling machine tool. Not only is the operation more cumbersome, but the outer edge of the blade is easily scratched during the manual position correction process;

[0006] (2) When a circular saw blade is being reamed, its outer cutting edge and cutting groove are generally processed. The conventional outer clamping method used for fixing the circular saw blade is likely to damage the outer cutting edge of the circular saw blade. The existing method of fixing the circular saw blade with a magnetic base is difficult to fix the circular saw blade stably, which can easily cause the position of the circular saw blade to shift during the reaming process. Summary of the invention

[0007] The object of the present invention is to provide a saw blade processing positioning device to solve the problems of low safety factor in manually correcting the position of a circular saw blade in the prior art and easy damage to the outer cutting edge by the existing clamping method for fixing the circular saw blade.

[0008] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0009] A saw blade processing positioning device, comprising:

[0010] A circular bottom plate, which is arranged on a lathe of a milling machine for reaming holes of a circular saw blade;

[0011] A circle center positioning mechanism, which is arranged at the center of the circular bottom plate and is used to quickly position the circular hole of the circular saw blade;

[0012] Four magnetic units are arranged on the top of the circular bottom plate and are evenly distributed around the outer circumference of the circle center positioning mechanism, and are used to support the circular saw blade positioned on the circle center positioning mechanism;

[0013] Four notch clamping mechanisms are all arranged on the outside of the circular bottom plate and respectively located between the four magnetic suction units, and the notch clamping mechanisms can clamp the outer cutting groove of the circular saw blade;

[0014] The notch clamping mechanism comprises an outer connecting frame arranged outside the circular chassis, a first push rod is arranged on the outer connecting frame, and a notch clamping mechanism capable of displacement on the upper surface of the circular chassis is arranged on the output end of the first push rod;

[0015] The slot engaging mechanism can be elastically engaged with the outer cutting slot from the bottom end of the circular saw blade, and the four first push rods can control the slot engaging mechanisms to synchronously extend to clamp the outer cutting slot of the circular saw blade.

[0016] As a preferred solution of the present invention, the center positioning mechanism includes an external fixing component arranged at the center position of the top end of the circular chassis, and a driving component arranged at the bottom end of the circular chassis, the interior of the external fixing component is movably connected with a center positioning column, and the driving component can make the center positioning column rise and fall inside the external fixing component;

[0017] Among them, the center positioning column and the driving component, the center positioning column rises inside the external fixing component to enable the center positioning column.

[0018] As a preferred solution of the present invention, the driving assembly includes a plurality of sliding rods fixedly connected to the bottom end of the circular chassis, a plurality of sliding rods are slidably connected to a slider, and the ends of the plurality of sliding rods are fixedly connected to a fixed block, and the fixed block is provided with a second push rod capable of driving the slider to slide along the direction of the plurality of sliding rods;

[0019] Wherein, the plurality of sliding rods are evenly distributed around the outer side of the external fixing assembly, and the directions of the plurality of sliding rods are consistent with the direction in which the central positioning column is lifted and lowered in the external fixing assembly;

[0020] Wherein, the sliding block is rotatably connected to the outer circumferential surface of the central positioning column.

[0021] As a preferred solution of the present invention, the outer fixing assembly includes a main fixing cylinder fixedly connected to the center position of the top end of the circular bottom plate, the inner part of the main fixing cylinder is rotatably connected to the inner rotating cylinder, and the outer side of the main fixing cylinder is provided with an elastic support assembly for elastically supporting the inner rotating cylinder, and the elastic support assembly can increase the resistance of the inner rotating cylinder to rotate in the main fixing cylinder;

[0022] Among them, the outer side of the inner rotating cylinder is provided with an external connecting block that can pass through the main fixed cylinder, the outer side of the main fixed cylinder is provided with a sliding groove for lateral displacement of the external connecting block, and the part of the external connecting block that passes through the sliding groove of the main fixed cylinder is provided with transversely distributed through holes.

[0023] As a preferred solution of the present invention, the elastic support assembly includes an outer fixing block fixed to the outside of the main fixing cylinder, the outer fixing block is provided with an arc-shaped guide rod distributed around the outside of the main fixing cylinder, the end of the arc-shaped guide rod movably passes through the through hole of the outer connecting block, and the arc-shaped guide rod is sleeved with a spring for elastically supporting the outer connecting block;

[0024] When the outer connection block moves along the slide groove of the main fixed cylinder, the outer connection block always moves along the outer side of the arc-shaped guide rod through the through hole and presses the spring.

[0025] As a preferred solution of the present invention, the inner drum is provided with two symmetrically distributed spiral grooves, the outer side of the central positioning column is provided with a protruding structure that always matches the two spiral grooves, and the central positioning column can be lifted and lowered in the inner drum and can rotate quantitatively through the spiral grooves;

[0026] The top of the center positioning column is a conical structure, and the center positioning column supports the inner hole of the circular saw blade through the inclined surface of the conical structure at the top, and the center positioning column lifts the circular saw blade to synchronously rotate quantitatively;

[0027] Among them, when the outer cutting groove of the circular saw blade engages with the four notch clamping mechanisms during the process of the center positioning column rotating to lift the circular saw blade, the center positioning column can rotate together with the inner rotating cylinder in the main fixed cylinder and release the rotation margin through the elastic support component.

[0028] As a preferred solution of the present invention, the slot engaging mechanism comprises a mounting box movably placed on the top of the circular bottom plate, a torsion spring shaft is arranged in the mounting box, a slotted card is rotatably connected to the torsion spring shaft, and the torsion spring shaft can elastically support the slotted card so that the slotted card tends to rotate upward;

[0029] One end of the installation box is fixedly connected to the telescopic end of the first push rod, and the torsion spring shaft is located in the installation box near the first push rod.

[0030] As a preferred solution of the present invention, a slot is provided at the top of the installation box for the torsion spring shaft to pass through;

[0031] Among them, the torsion spring shaft is an isosceles triangle structure, the right-angled side of the torsion spring shaft is used to engage in the outer cutting groove of the circular saw blade, the bottom end of the right-angled side of the torsion spring shaft is located inside the installation box and is connected to a protruding structure that cannot pass through the cutting groove, and the torsion spring shaft can always be inside the installation box through the protruding structure when rising along the cutting groove card.

[0032] As a preferred solution of the present invention, a sliding frame is provided at the bottom end of the installation box, a sliding rail is slidably connected inside the sliding frame, the sliding rail is fixedly connected to the top of the circular chassis, and the installation box can move toward the center of the circular chassis on the sliding rail through the sliding frame.

[0033] As a preferred solution of the present invention, the magnetic attraction unit comprises a secondary fixed cylinder fixed on the top of the circular bottom plate, the interior of the secondary fixed cylinder is movably connected with an electromagnet, and the bottom end of the secondary fixed cylinder is connected with an inner sleeve of the cylinder through a thread;

[0034] The inner thread sleeve is used to support the electromagnet, and the inner thread sleeve can make the electromagnet rise and fall along the auxiliary fixed cylinder by lifting and lowering along the auxiliary fixed cylinder through the thread.

[0035] Wherein, the top end of the secondary fixing tube and the top end of the external fixing component are at the same level.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] (1) The present invention supports the circular saw blade by arranging a center positioning mechanism and four magnetic units on the circular bottom plate. The four magnetic units can keep the circular saw blade in a horizontal state by magnetic attraction. The center positioning mechanism can be lifted from the inner hole of the circular saw blade to automatically correct the position of the circular saw blade.

[0038] In addition, the center positioning mechanism can rotate together with the circular saw blade during the lifting process, so that the outer cutting groove of the circular saw blade can be clamped into the four notch clamping mechanisms;

[0039] (2) The present invention arranges four slot clamping mechanisms between four magnetic suction units. The slot clamping mechanisms are provided with a card that can elastically rise to be able to extend into the outer cutting groove of the circular saw blade. The four slot clamping mechanisms move relative to each other toward the center to clamp the outer cutting groove of the circular saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0041] Figure 1 A top view of the entire device is provided for the present invention.

[0042] Figure 2 A top view of an external fixation assembly is provided for the present invention.

[0043] Figure 3 A schematic diagram of the bottom structure of a driving assembly is provided for the present invention.

[0044] Figure 4 A cross-sectional view of a notch engagement mechanism is provided for the present invention.

[0045] The numbers in the figure represent the following:

[0046] 1-circular chassis; 2-center positioning mechanism; 3-magnetic unit; 4-slot clamping mechanism;

[0047] 21-external fixing assembly; 22-driving assembly; 23-center positioning column;

[0048] 211-main fixed cylinder; 212-inner rotating cylinder; 213-elastic support assembly; 221-sliding rod; 222-sliding block; 223-fixed block; 224-second push rod;

[0049] 2121-external connection block; 2122-spiral groove; 2131-external fixing block; 2132-arc guide rod; 2133-spring;

[0050] 31-secondary fixed cylinder; 32-electromagnet; 33-thread sleeve in the cylinder;

[0051] 41-external connecting frame; 42-first push rod; 43-slot engaging mechanism;

[0052] 431-installation box; 432-torsion spring shaft; 433-slot card;

[0053] 4311-slide frame; 4312-slide rail. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] like Figures 1 to 4 As shown, the present invention provides a saw blade processing positioning device, comprising:

[0056] The circular bottom plate 1 is arranged on a lathe of a milling machine for reaming holes of a circular saw blade;

[0057] A circle center positioning mechanism 2, which is arranged at the center of the circular base plate 1 and is used to quickly position the circular hole of the circular saw blade;

[0058] Four magnetic units 3 are arranged on the top of the circular bottom plate 1 and are evenly distributed around the outer circumference of the circle center positioning mechanism 2, and are used to support the circular saw blade positioned on the circle center positioning mechanism 2;

[0059] Four notch clamping mechanisms 4 are all arranged on the outside of the circular bottom plate 1 and are respectively located between the four magnetic suction units 3. The notch clamping mechanisms 4 can clamp the outer cutting groove of the circular saw blade;

[0060] The notch clamping mechanism 4 comprises an outer connecting frame 41 arranged outside the circular chassis 1, a first push rod 42 is arranged on the outer connecting frame 41, and a notch clamping mechanism 43 capable of displacement on the upper surface of the circular chassis 1 is arranged on the output end of the first push rod 42;

[0061] The slot engaging mechanism 43 can be elastically engaged with the outer cutting slot from the bottom end of the circular saw blade, and the four first push rods 42 can control the slot engaging mechanisms 43 to extend synchronously to clamp the outer cutting slot of the circular saw blade.

[0062] When placing a circular saw blade on a vertical drilling machine, it is necessary to manually correct the position of the circular saw blade so that the inner hole of the circular saw blade is directly below the milling machine tool. Not only is the operation more cumbersome, but the outer edge of the blade is easily scratched during the manual position correction process.

[0063] The present invention supports the circular saw blade together by arranging a center positioning mechanism 2 and four magnetic units 3 on a circular base plate 1. The four magnetic units 3 can keep the circular saw blade in a horizontal state by magnetic attraction. The center positioning mechanism 2 can be lifted from the inner hole of the circular saw blade to automatically correct the position of the circular saw blade.

[0064] When a circular saw blade is reaming, its outer cutting edge and cutting groove are generally processed. The conventional outer clamping method used for fixing is easy to damage the outer cutting edge of the circular saw blade. The existing method of fixing the circular saw blade with a magnetic base is difficult to fix the circular saw blade stably, which can easily cause the position of the circular saw blade to shift during the reaming process.

[0065] The present invention arranges four slot clamping mechanisms 4 between four magnetic units, and the slot clamping mechanisms 4 are provided with slot cards 433 that can elastically rise to be able to extend into the outer slot of the circular saw blade. The four slot clamping mechanisms 4 move relative to the center to clamp the outer slot of the circular saw blade.

[0066] In addition, during the lifting process of the circle center positioning mechanism 2 , it can rotate together with the circular saw blade, so that the outer cutting groove of the circular saw blade can be clamped into the four notch clamping mechanisms 4 .

[0067] The center positioning mechanism 2 includes an outer fixing component 21 disposed at the center of the top of the circular chassis 1, and a driving component 22 disposed at the bottom of the circular chassis 1. A center positioning column 23 is movably connected inside the outer fixing component 21, and the driving component 22 can make the center positioning column 23 rise and fall inside the outer fixing component 21.

[0068] The center positioning column 23 and the driving assembly 22 are connected. The center positioning column 23 rises inside the outer fixing assembly 21 to enable the center positioning column 23 to move upward.

[0069] The driving assembly 22 includes a plurality of slide bars 221 fixedly connected to the bottom end of the circular chassis 1, a slider 222 is slidably connected to the plurality of slide bars 221, and a fixing block 223 is fixedly connected to the ends of the plurality of slide bars 221, and a second push rod 224 capable of driving the slider 222 to slide along the direction of the plurality of slide bars 221 is provided on the fixing block 223;

[0070] Among them, the plurality of slide bars 221 are evenly distributed around the outer side of the external fixing assembly 21, and the directions of the plurality of slide bars 221 are consistent with the direction in which the central positioning column 23 is lifted and lowered in the external fixing assembly 21;

[0071] The slider 222 is rotatably connected to the outer circumferential surface of the center positioning column 23 .

[0072] The outer fixing assembly 21 includes a main fixing cylinder 211 fixedly connected to the center position of the top of the circular chassis 1, the inner rotating cylinder 212 is rotatably connected inside the main fixing cylinder 211, and an elastic supporting assembly 213 for elastically supporting the inner rotating cylinder 212 is arranged outside the main fixing cylinder 211, and the elastic supporting assembly 213 can increase the resistance of the inner rotating cylinder 212 to rotation in the main fixing cylinder 211;

[0073] Among them, the outer side of the inner rotating cylinder 212 is provided with an external connecting block 2121 that can pass through the main fixed cylinder 211, the outer side of the main fixed cylinder 211 is provided with a sliding groove for the lateral displacement of the external connecting block 2121, and the part of the external connecting block 2121 that passes through the sliding groove of the main fixed cylinder 211 is provided with transversely distributed through holes.

[0074] The elastic support assembly 213 includes an outer fixing block 2131 fixed to the outside of the main fixing cylinder 211, and an arc-shaped guide rod 2132 is arranged on the outer fixing block 2131 and is distributed around the outside of the main fixing cylinder 211. The end of the arc-shaped guide rod 2132 movably passes through the through hole of the outer connecting block 2121, and a spring 2133 for elastically supporting the outer connecting block 2121 is sleeved on the arc-shaped guide rod 2132;

[0075] When the outer connection block 2121 moves along the sliding groove of the main fixing tube 211 , the outer connection block 2121 always moves along the outer side of the arc-shaped guide rod 2132 through the through hole and presses the spring 2133 .

[0076] Two symmetrically distributed spiral grooves 2122 are provided inside the inner drum 212, and a protruding structure that always matches the two spiral grooves 2122 is provided on the outer side of the central positioning column 23. The central positioning column 23 can be lifted and lowered in the inner drum 212 and can rotate quantitatively through the spiral grooves 2122;

[0077] The top of the center positioning column 23 is a conical structure, and the center positioning column 23 supports the inner hole of the circular saw blade through the inclined surface of the conical structure at the top, and the center positioning column 23 lifts the circular saw blade to synchronously rotate quantitatively;

[0078] When the outer groove of the circular saw blade engages with the four notch clamping mechanisms 4 during the process of the center positioning column 23 rotating to lift the circular saw blade, the center positioning column 23 can rotate together with the inner rotating cylinder 212 in the main fixed cylinder 211 and release the rotation margin through the elastic support component 213.

[0079] The slot engaging mechanism 43 comprises a mounting box 431 movably placed on the top of the round chassis 1, a torsion spring shaft 432 is arranged in the mounting box 431, a slotted card 433 is rotatably connected to the torsion spring shaft 432, and the torsion spring shaft 432 can elastically support the slotted card 433 so that the slotted card 433 tends to rotate upward;

[0080] One end of the installation box 431 is fixedly connected to the telescopic end of the first push rod 42 , and the torsion spring shaft 422 is located in the installation box 431 near the first push rod 42 .

[0081] The top of the mounting box 431 is provided with a slot for the torsion spring shaft 432 to pass through;

[0082] Among them, the torsion spring shaft 432 is an isosceles triangle structure, the right-angled side of the torsion spring shaft 432 is used to engage in the outer cutting groove of the circular saw blade, the bottom end of the right-angled side of the torsion spring shaft 432 is inside the installation box 431 and is connected to a protruding structure that cannot pass through the cutting groove, and the torsion spring shaft 432 can always be inside the installation box 431 through the protruding structure when rising along the cutting groove card 433.

[0083] A slide frame 4311 is provided at the bottom end of the installation box 431. A slide rail 4312 is slidably connected inside the slide frame 4311. The slide rail 4312 is fixedly connected to the top of the circular chassis 1. The installation box 431 can move toward the center of the circular chassis 1 on the slide rail 4312 through the slide frame 4311.

[0084] The magnetic unit 3 includes a secondary fixed cylinder 31 fixed to the top of the round bottom plate 1, an electromagnet 32 ​​is movably connected inside the secondary fixed cylinder 31, and a cylinder inner thread sleeve 33 is connected to the bottom end of the secondary fixed cylinder 31 through a thread.

[0085] The inner thread sleeve 33 is used to support the electromagnet 32. The inner thread sleeve 33 can lift and lower the electromagnet 32 ​​along the auxiliary fixed cylinder 31 by lifting and lowering along the auxiliary fixed cylinder 31 through the thread.

[0086] The top end of the auxiliary fixing tube 31 and the top end of the external fixing component 21 are at the same level.

[0087] When reaming a circular saw blade, the circular base plate 1 needs to be placed on a lathe of a milling machine, and power is supplied to the four magnetic units 3 , the first push rod 42 , and the second push rod 224 .

[0088] The circular saw blade that needs to be drilled is then placed on a support structure composed of four magnetic units 3 and a center positioning mechanism 2. The electromagnets 32 of the four magnetic units 3 are energized to magnetically attract the circular saw blade, so that the circular saw blade remains horizontal after being supported.

[0089] After the circular saw blade is supported by the magnet, the position of the circular saw blade needs to be corrected so that the center hole of the circular saw blade is directly below the milling machine tool. By controlling the telescopic end of the second push rod 224 to extend, the slider 222 together with the center positioning column 23 moves toward the external fixing component 21 on the multiple slide rods 221 until the center positioning column 23 extends out of the external fixing component 21. The center hole of the circular saw blade is supported by the conical inclined surface, thereby raising the height of the circular saw blade, so that the part of the circular saw blade that was originally in contact with the magnetic unit is adjusted to a suspended state. Under the magnetic action of the four electromagnets 32, the circular saw blade whose inner hole is supported by the center positioning column 23 can automatically correct its position.

[0090] When the center positioning column 23 extends out from the outer fixing assembly 21, the center positioning column 23 cooperates with the spiral groove on the inner side of the inner rotating cylinder 212 through the protruding structure on the outer side, so that the center positioning column 23 can rotate quantitatively during the rising process, thereby allowing the circular saw blade supported on the center positioning column 23 to rotate quantitatively.

[0091] When the circular saw blade is placed on the four magnetic units 3 or is corrected, the circular saw blade can cover the positions of the four slot locking mechanisms 43 at the same time. However, when the circular saw blade is placed for the first time, the outer cutting groove of the circular saw blade is difficult to be accurately inserted into the cutting groove card 433 of the four slot locking mechanisms 43. The center positioning column 23 rotates together with the circular saw blade, so that the outer cutting groove of the circular saw blade can move to the position of the cutting groove card 433 during the rotation.

[0092] The slotting card 433 of the slot locking mechanism 43 is connected to the mounting box 431 via a torsion spring shaft 432, and the torsion spring shaft 432 provides elastic support for the slotting card 433 to rotate upward. When the non-slotting part of the circular saw blade is pressed against the slotting card 433, the slotting card 433 will abut against the bottom end of the circular saw blade and compress the torsion spring on the torsion spring shaft 432. When the slot of the circular saw blade rotates to just above the slotting card 433, the torsion spring of the torsion spring shaft 432 is released, enabling the slotting card 433 to elastically rotate upward until it is inserted into the slot of the circular saw blade.

[0093] When the cutting slot cards 433 of the four slot locking mechanisms 43 are inserted into the outer cutting slots of the circular saw blade, by controlling the four first push rods to extend synchronously, the four mounting boxes 431 can be moved toward the center position of the circular chassis 1 at the same time, so that the four cutting slot cards 433 are clamped in the four outer cutting slots of the circular saw blade.

[0094] Since the second push rod 224 controls the rotation amplitude of the center positioning column 23 during the rising process, if the outer cutting groove of the circular saw blade is engaged with the four cutting groove cards when the circular saw blade is controlled to rotate a small amount, the center positioning column 23 continues to rotate and exerts a lateral shear force on the four cutting groove cards 433. After the cutting groove cards 433 are supported by the mounting box 431, the first push rod 42 and the external connecting frame 41, the center positioning column 23 exerts a lateral shear force on the inner rotating cylinder 212, thereby causing the inner rotating cylinder 212 to rotate in the outer main fixed cylinder 211.

[0095] As the inner rotating cylinder 212 rotates, the external connecting block 2121 arranged on the outer side of the inner rotating cylinder 212 can be laterally displaced in the transverse groove arranged on the main fixed cylinder 211, so that the external connecting block 2121 is displaced along the arc-shaped guide rod 2132 of the elastic support component 213, thereby compressing the spring 2133 to eliminate excess lateral shear force. When the center positioning column 23 retracts into the external fixed component 21, the spring 2133 will be released to reset the external connecting block 2121 and the inner rotating cylinder 212.

[0096] By rotating the inner threaded sleeve 33 , the height of the inner threaded sleeve 33 and the supported electromagnet 32 ​​can be adjusted inside the auxiliary fixed sleeve 31 , and the suction force of the electromagnet 32 ​​to magnetically attract the circular saw blade is adjusted.

[0097] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A saw blade processing positioning device, characterized in that: include, The circular bottom plate (1) is arranged on a lathe of a milling machine for reaming holes on a circular saw blade; A circle center positioning mechanism (2), which is arranged at the center of the circular base plate (1) and is used to quickly position the circular hole of the circular saw blade; Four magnetic attraction units (3), all arranged at the top of the circular base plate (1) and evenly distributed around the outer circumference of the circle center positioning mechanism (2), and used for supporting the circular saw blade positioned on the circle center positioning mechanism (2); Four notch clamping mechanisms (4) are all arranged on the outside of the circular base (1) and are respectively located between the four magnetic attraction units (3), and the notch clamping mechanisms (4) are capable of clamping the outer cutting groove of the circular saw blade; the notch clamping mechanism (4) comprises an external connecting frame (41) arranged on the outside of the circular base (1), a first push rod (42) is arranged on the external connecting frame (41), and a notch clamping mechanism (43) capable of displacement on the upper surface of the circular base (1) is arranged on the output end of the first push rod (42); The notch engaging mechanism (43) can be elastically engaged with the outer cutting groove from the bottom end of the circular saw blade, and the four first push rods (42) can synchronously extend to clamp the outer cutting groove of the circular saw blade by controlling each of the notch engaging mechanisms (43); The circle center positioning mechanism (2) comprises an external fixing component (21) arranged at the center position of the top end of the circular base (1), and a driving component (22) arranged at the bottom end of the circular base (1), the interior of the external fixing component (21) being movably connected with a center positioning column (23), and the driving component (22) is capable of causing the center positioning column (23) to rise and fall inside the external fixing component (21); Wherein, the central positioning column (23) and the driving assembly (22), the central positioning column (23) rising inside the external fixing assembly (21) can enable the central positioning column (23); The slot engaging mechanism (43) comprises a mounting box (431) movably placed on the top of the circular base plate (1), a torsion spring shaft (432) being arranged in the mounting box (431), a slotted card (433) being rotatably connected to the torsion spring shaft (432), and the torsion spring shaft (432) being capable of elastically supporting the slotted card (433) so that the slotted card (433) tends to rotate upwards; One end of the installation box (431) is fixedly connected to the telescopic end of the first push rod (42), and the torsion spring shaft (432) is located in the installation box (431) at a position close to the first push rod (42); A slot is formed at the top of the installation box (431) for the torsion spring shaft (432) to pass through; The torsion spring shaft (432) is in an isosceles triangle structure, the right-angled side of the torsion spring shaft (432) is used to engage in the outer groove of the circular saw blade, the bottom end of the right-angled side of the torsion spring shaft (432) is located inside the installation box (431) and is connected to a protruding structure that cannot pass through the groove, and the torsion spring shaft (432) can always be located inside the installation box (431) through the protruding structure when rising along the groove card (433); A sliding frame (4311) is provided at the bottom end of the installation box (431), a sliding rail (4312) is slidably connected inside the sliding frame (4311), and the sliding rail (4312) is fixedly connected to the top end of the circular chassis (1), so that the installation box (431) can move on the sliding rail (4312) toward the center of the circular chassis (1) through the sliding frame (4311); The magnetic attraction unit (3) comprises a secondary fixed cylinder (31) fixed to the top of the circular base plate (1), an electromagnet (32) is movably connected inside the secondary fixed cylinder (31), and a cylinder inner thread sleeve (33) is connected to the bottom end of the secondary fixed cylinder (31) via a thread. The inner thread sleeve (33) is used to support the electromagnet (32); the inner thread sleeve (33) is raised and lowered along the auxiliary fixed cylinder (31) via a thread, so that the electromagnet (32) can be raised and lowered along the auxiliary fixed cylinder (31); Wherein, the top end of the auxiliary fixing tube (31) and the top end of the external fixing component (21) are at the same horizontal height.

2. A saw blade processing positioning device according to claim 1, characterized in that: The driving assembly (22) comprises a plurality of sliding rods (221) fixedly connected to the bottom end of the circular chassis (1); a slider (222) is slidably connected to the plurality of sliding rods (221); and a fixing block (223) is fixedly connected to the ends of the plurality of sliding rods (221); and a second push rod (224) is provided on the fixing block (223) capable of driving the slider (222) to slide along the direction of the plurality of sliding rods (221); The plurality of slide bars (221) are evenly distributed around the outer side of the external fixing component (21), and the orientation of the plurality of slide bars (221) is consistent with the orientation of the central positioning column (23) rising and falling in the external fixing component (21); The sliding block (222) is rotatably connected to the outer circumferential surface of the central positioning column (23).

3. A saw blade processing positioning device according to claim 1, characterized in that: The outer fixing assembly (21) comprises a main fixing cylinder (211) fixedly connected to the center position of the top end of the circular base plate (1); the inner part of the main fixing cylinder (211) is rotatably connected to an inner rotating cylinder (212); an elastic support assembly (213) for elastically supporting the inner rotating cylinder (212) is arranged on the outer side of the main fixing cylinder (211); the elastic support assembly (213) is capable of increasing the resistance of the inner rotating cylinder (212) to rotation in the main fixing cylinder (211); An outer side of the inner rotating cylinder (212) is provided with an outer connecting block (2121) capable of passing through the main fixed cylinder (211), a sliding groove for allowing the outer connecting block (2121) to move laterally is provided on the outer side of the main fixed cylinder (211), and a portion of the outer connecting block (2121) passing through the sliding groove of the main fixed cylinder (211) is provided with through holes distributed laterally.

4. A saw blade processing positioning device according to claim 3, characterized in that: The elastic support assembly (213) comprises an outer fixing block (2131) fixed to the outside of the main fixing cylinder (211); the outer fixing block (2131) is provided with an arc-shaped guide rod (2132) distributed around the outside of the main fixing cylinder (211); the end of the arc-shaped guide rod (2132) movably passes through the through hole of the outer connecting block (2121); the arc-shaped guide rod (2132) is sleeved with a spring (2133) for elastically supporting the outer connecting block (2121); When the outer connection block (2121) moves along the slide groove of the main fixed cylinder (211), the outer connection block (2121) always moves along the outer side of the arc-shaped guide rod (2132) through the through hole and compresses the spring (2133).

5. The saw blade processing positioning device according to claim 3, characterized in that: The inner rotating cylinder (212) is provided with two symmetrically distributed spiral grooves (2122), the outer side of the central positioning column (23) is provided with a protruding structure that always matches the two spiral grooves (2122), and the central positioning column (23) can be raised and lowered in the inner rotating cylinder (212) and can rotate quantitatively through the spiral grooves (2122); The top end of the center positioning column (23) is a conical structure, the center positioning column (23) supports the inner hole of the circular saw blade through the inclined surface of the conical structure at the top end, and the center positioning column (23) lifts the circular saw blade to synchronously rotate quantitatively; When the outer notch of the circular saw blade engages with the four notch clamping mechanisms (4) during the process of the central positioning column (23) rotating to lift the circular saw blade, the central positioning column (23) can rotate together with the inner rotating cylinder (212) in the main fixed cylinder (211) and release the rotation margin through the elastic support assembly (213).

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