Grinding device for high-performance cold saw blade

Abstract

The utility model provides a grinding device for a high-performance cold saw blade, belongs to the field of cold saw blade processing, and solves the technical problems that the existing grinding device for the high-performance cold saw blade is long in grinding time and complex in working procedure, a cold saw blade base body needs to be manually transferred, chippings cannot be collected, the environment is polluted and the like. Comprising a platform and two positioning hole grinding assemblies, a rack is fixed to the upper end of the platform, the two positioning hole grinding assemblies are rotationally arranged on the rack, an outer circle grinding assembly is arranged at the upper end of the platform, a pre-pressing assembly is arranged at the lower end of the upper positioning hole grinding assembly, a movable storage cabinet is arranged at the lower end of the platform, and a dust collector is arranged in the movable storage cabinet. According to the cold saw blade base body polishing device, a plurality of positioning holes can be polished at the same time, time is saved, the outer circle of a cold saw blade base body and the positioning holes can be polished at the same time, the process of manually transferring the cold saw blade base body is omitted, working procedures are saved, efficiency is improved, chippings generated in the polishing process can be collected, and environment pollution is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cold saw blade processing technical field relates to a kind of high-performance cold saw blade's polishing device. BACKGROUND

[0002] Cold saw blade is a kind of disc-shaped saw blade without additional cooling liquid in cutting process, through special design and material, realize the heat generated during cutting quickly dissipate, keep cutting low temperature, to ensure cutting quality and tool life.

[0003] During the production process of cold saw blade, burrs may be left on the edge of the positioning hole and the outer circle of the cold saw blade base after polishing the end face of the cold saw blade base. The positioning hole and the outer circle need to be polished respectively by an internal grinding machine and an external grinding machine. During this process, the cold saw blade base needs to be manually transferred, which is time-consuming and labor-intensive, and the efficiency is low. Moreover, the internal grinding machine can only polish one positioning hole at a time, which takes a long time to polish. The debris generated during polishing cannot be collected, which may pollute the environment.

[0004] Therefore, we propose a high-performance cold saw blade polishing device that can polish several positioning holes at the same time, saving time. The outer circle and the positioning hole of the cold saw blade base can be polished simultaneously, eliminating the need for manual transfer of the cold saw blade base, saving process steps, and improving efficiency. The debris generated during polishing can be collected to avoid polluting the environment. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above-mentioned problems of the existing technology and proposes a high-performance cold saw blade polishing device. The technical problem to be solved by the utility model is how to stably and efficiently polish the outer circle and several positioning holes of the cold saw blade, while collecting the debris generated during polishing.

[0006] The purpose of the utility model can be achieved by the following technical solutions:

[0007] A high-performance cold saw blade polishing device includes a platform and two symmetrical positioning hole polishing assemblies. The platform has a rack fixed to its upper end. The cross-section of the rack is horizontally U-shaped. One of the positioning hole polishing assemblies is rotatably arranged on the upper end surface of the lower horizontal part of the rack. The other positioning hole polishing assembly is rotatably arranged on the lower end surface of the upper horizontal part of the rack. The upper end and the lower end of the rack are each provided with a motor for driving the positioning hole polishing assembly to rotate. The upper end of the platform is provided with an outer circle polishing assembly, which is located on the side of the two positioning hole polishing assemblies. The lower end of the upper positioning hole polishing assembly is provided with a pre-pressing assembly. The lower end of the platform is provided with a mobile storage cabinet. The mobile storage cabinet is internally provided with a dust collector. The positioning hole polishing assembly and the outer circle polishing assembly are connected to the dust collector through flexible pipelines.

[0008] The working principle of the utility model is: when using, the worker places the cold saw blade base body which has been polished on the end surface on the lower positioning hole polishing assembly, and roughly aligns the positioning hole with the corresponding position of the positioning hole polishing assembly, the upper positioning hole polishing assembly drives the pre-pressing assembly to pre-press the cold saw blade base body, the lower positioning hole polishing assembly and the upper positioning hole polishing assembly drive the cold saw blade base body to move and polish the positioning hole in turn, and the two positioning hole polishing assemblies rotate synchronously under the drive of the corresponding motor one, drive the cold saw blade base body to rotate a circle and then change direction and reverse a circle, and the outer circle polishing assembly polishes the outer circle of the cold saw blade base body, after polishing, the two positioning hole polishing assemblies release the cold saw blade base body, the worker takes down the cold saw blade base body, the machine resets, the movable storage cabinet is used for storing articles, and is convenient for moving the equipment, and the dust collector is used for collecting the chippings generated in the polishing process.

[0009] The positioning hole polishing assembly comprises a rotating platform, a gear ring part and a plurality of rotating shafts, the rotating platform is rotationally arranged on the rack, one end of the rotating platform away from the rack is fixed with a transmission assembly box, one end of the transmission assembly box away from the rotating platform is provided with a protective cover, and the center position of the one end of the transmission assembly box away from the rotating platform is fixed with an electric push rod, the telescopic end of the electric push rod passes through the protective cover and is provided with a pressing plate, the gear ring part is rotationally arranged in the transmission assembly box, the transmission assembly box is provided with a driving gear rotationally arranged and a motor two for driving the driving gear to rotate, the driving gear and the gear ring part are engaged, the plurality of rotating shafts pass through one end of the transmission assembly box away from the rotating platform and are arranged in a circle around the electric push rod, the plurality of rotating shafts are rotationally arranged on the transmission assembly box, one end of the plurality of rotating shafts extending into the transmission assembly box is fixed with a driven gear, the plurality of driven gears are engaged with the gear ring part, one end of the plurality of rotating shafts extending out of the transmission assembly box passes through the protective cover and is detachably provided with a positioning hole polishing head, one end of the positioning hole polishing head close to the rotating shaft is cylindrical, and the other end away from the rotating shaft is conical.

[0010] With the above structure, when the worker places the cold saw blade base on the positioning hole polishing assembly located below, the positioning hole on the cold saw blade base is roughly aligned with the positioning hole polishing head, at this time, due to the existence of burrs on the lower end edge of the positioning hole, only the tip of the positioning hole polishing head enters the positioning hole, the electric push rod located above drives the corresponding pressing plate to move downward, and drives the pre-pressing assembly to move downward and contact the cold saw blade base, the motor two in the positioning hole polishing assembly located below drives the corresponding driving gear to rotate, thereby driving the corresponding gear ring to rotate, and then driving the corresponding several groups of driven gears to rotate, the corresponding several groups of driven gears drive the corresponding positioning hole polishing head to rotate through the corresponding shaft, and the lower end edge of the positioning hole is polished to remove the burrs. Under the action of the pre-pressing assembly, the cold saw blade base descends, the cylindrical part of the positioning hole polishing head completely penetrates the positioning hole, the positioning hole is positioned and polished, the electric push rod located above drives the corresponding pressing plate to continue to move downward, and drives the pre-pressing assembly to move downward, the pre-pressing assembly cooperates with the pressing plate located below to completely clamp the cold saw blade base. After the polishing of the positioning hole by the positioning hole polishing head located below is completed, the two electric push rods drive the two pressing plates to hold the cold saw blade base to move upward, the motor two in the positioning hole polishing assembly above drives the corresponding driving gear to rotate, thereby driving the corresponding gear ring to rotate, and then driving the corresponding several groups of driven gears to rotate, the corresponding several groups of driven gears drive the corresponding positioning hole polishing head to rotate through the corresponding shaft, and the upper end edge of the positioning hole is polished to remove the burrs. The two electric push rods drive the two pressing plates to hold the cold saw blade base to move downward between the two groups of positioning hole polishing heads, the electric push rod located above drives the corresponding pressing plate and the pre-pressing assembly to move upward to release the cold saw blade base, and the positioning hole polishing head is detachably arranged on the shaft, so that the corresponding size of the positioning hole polishing head can be replaced for different sizes of the positioning hole.

[0011] The outer circle polishing assembly comprises an electric screw rod, a column and an outer circle polishing head, the electric screw rod is fixed at the upper end of the platform, the column is fixed on the sliding block of the electric screw rod, and the outer circle polishing head is rotatably arranged on the column. A motor three for driving the outer circle polishing head to rotate is arranged on the column, and a dust collecting hopper is arranged on the column, the dust collecting hopper being located below the outer circle polishing head, and the dust collecting hopper being connected with the dust collector through a flexible pipeline.

[0012] With the above structure, when the two pressing plates and the pre-pressing assembly completely clamp the cold saw blade base body, the two positioning hole polishing assemblies rotate synchronously under the driving of the corresponding motor one, driving the cold saw blade base body to rotate, the outer circle polishing head rotates under the driving of the corresponding motor two, the electric screw rod moves the column and the outer circle polishing head, approaches the outer circle of the cold saw blade base body, and polishes the outer circle of the cold saw blade base body, the outer circle polishing head is detachably arranged on the column, facilitating replacement, and the dust collector is connected with the dust collector through a flexible pipeline, and the dust collector can suck the debris falling into the dust collector into the dust collector for collection.

[0013] The pre-pressing assembly comprises a pressing ring, a plurality of circumferentially distributed guide pipes and a plurality of circumferentially distributed springs, the plurality of guide pipes are fixed at the lower end of the pressing plate of the upper positioning hole polishing assembly, the pressing ring is located below the pressing plate of the upper positioning hole polishing assembly, the upper end of the pressing ring is provided with a plurality of circumferentially distributed guide rods, the upper part of the guide rod is a cone, and the lower part is a cylinder, the number and position of the guide rods correspond to those of the guide pipes, the outer diameter of the cylinder of the guide rod is the same as the inner diameter of the guide pipe, the guide rod is located below the guide pipe, and the number of the springs corresponds to that of the guide pipes.

[0014] With the above structure, the electric push rod located above drives the pressing plate and the pre-pressing assembly to descend, the pressing ring contacts the cold saw blade base body, at this time, only the cone of the guide rod enters the inside of the guide pipe, due to the uneven distribution of burrs, the cold saw blade base body may slightly shake during the process that the lower positioning hole polishing head removes the burrs on the lower edge of the positioning hole, the pressing ring shakes with the cold saw blade base body and always contacts the cold saw blade base body under the action of the spring, avoiding the deviation of the cold saw blade base body, after the lower edge polishing of the positioning hole is completed, the electric push rod located above continues to push the pressing plate to move downward, compressing the spring, the cylinder of the guide rod enters the guide pipe, and the pressing ring completely presses the cold saw blade base body.

[0015] The gear ring piece comprises an upper gear ring and a lower gear ring, the mounting plate is provided in the transmission assembly box, a circular through hole smaller than the gear ring piece is formed in the mounting plate, a plurality of balls are rotatably arranged on the upper and lower end faces of the mounting plate, the upper gear ring is located above the mounting plate and contacts the balls on the upper end face of the mounting plate at the lower edge of the upper end face, the lower gear ring is located below the mounting plate and contacts the balls on the lower end face of the mounting plate at the upper edge of the upper end face, the upper gear ring and the lower gear ring are connected through bolts, and the bolts are located inside the circular through hole of the mounting plate.

[0016] With the above structure, the upper gear ring and the lower gear ring are respectively placed on the upper and lower sides of the mounting plate during installation, the upper gear ring and the lower gear ring are connected by the bolts, and the mounting plate is clamped, and the balls are used to reduce the friction between the upper gear ring, the lower gear ring and the mounting plate.

[0017] The upper end face of the protective cover of the lower positioning hole polishing assembly is a slope with a low center and a high periphery, an opening is formed in the center of the slope, a plurality of positioning hole polishing heads of the lower positioning hole polishing assembly are located above the slope, corresponding electric push rods extend out of the protective cover from the opening, and corresponding outer sides of the electric push rods are sleeved with telescopic pipes with a circular cross section, the inside of the protective cover is provided with two symmetrically arranged scrap collecting boxes, the scrap collecting boxes are semicircular rings with a U-shaped cross section, the two scrap collecting boxes are arranged on the two sides of the telescopic pipe, the inner wall of the semicircular ring of each scrap collecting box is attached to the outer wall of the telescopic pipe, the two ends of the semicircular ring of each scrap collecting box are in contact with each other, a magnet piece is arranged on the end face of each of the two ends of the semicircular ring, the two scrap collecting boxes are located below the opening on the slope, and the two scrap collecting boxes are connected with a dust collector through a flexible pipeline.

[0018] With the above structure, the debris generated during the polishing of the positioning hole falls on the slope and falls into the scrap collecting box under the action of gravity, the two scrap collecting boxes are connected through the magnet pieces and are sleeved outside the telescopic pipe to prevent the scrap collecting boxes from deviating, and the two scrap collecting boxes are connected with the dust collector through the flexible pipeline, so that the debris generated during the polishing of the positioning hole falls into the scrap collecting box through the slope and is sucked into the dust collector and collected.

[0019] Compared with the prior art, the polishing device for the high-performance cold saw blade has the following advantages:

[0020] 1. The simultaneous polishing of the positioning holes of the cold saw blade base body is realized through the cooperation of the two positioning hole polishing assemblies and the pre-pressing assembly, time is saved.

[0021] 2. The simultaneous polishing of the positioning holes and the outer circle of the cold saw blade base body is realized through the cooperation of the pre-pressing assembly, the two positioning hole polishing assemblies and the outer circle polishing assembly, the process of manually transferring the cold saw blade base body is saved, the process is saved, and the efficiency is improved.

[0022] 3. The debris generated during the polishing of the positioning hole is collected through the cooperation of the slope, the scrap collecting box and the dust collector, and the debris generated during the polishing of the outer circle is collected through the cooperation of the scrap collecting box and the dust collector, so that the environment is prevented from being polluted. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the utility model.

[0024] Figure 2 It is a structural schematic view of the positioning hole polishing assembly in the utility model.

[0025] Figure 3 It is a structural schematic view of the outer circle polishing assembly in the utility model.

[0026] Figure 4 It is a structural schematic view of the pre-pressing assembly in the utility model.

[0027] Figure 5 is Figure 2 is a partial enlarged structural schematic view of A in the middle.

[0028] In the figure, 1, positioning hole polishing assembly; 2, outer circle polishing assembly; 3, pre-pressing assembly; 4, rack; 5, platform; 6, rotating platform; 7, transmission assembly box; 8, protective cover; 9, pressing plate; 10, electric push rod; 11, driving gear; 12, gear ring part; 13, driven gear; 14, rotating shaft; 15, positioning hole polishing head; 16, electric screw rod part; 17, stand; 18, outer circle polishing head; 19, pressing ring; 20, guide pipe; 21, guide rod; 22, spring; 23, upper gear ring; 24, lower gear ring; 25, mounting plate; 26, ball; 27, inclined surface; 28, scrap collecting box; 29, magnet piece; 30, scrap collecting hopper; 31, mobile storage cabinet. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0030] As Figures 1-5 shown, the polishing device of the high-performance cold saw blade comprises a platform 5 and two symmetrical positioning hole polishing assemblies 1, the upper end of the platform 5 is fixed with a rack 4, the cross section of the rack 4 is a transverse U-shaped, one of the positioning hole polishing assemblies 1 is rotationally arranged on the upper end face of the lower end horizontal part of the rack 4, the other positioning hole polishing assembly 1 is rotationally arranged on the lower end face of the upper end horizontal part of the rack 4, the upper end and the lower end of the rack 4 are both provided with a motor one for driving the positioning hole polishing assembly 1 to rotate, the upper end of the platform 5 is provided with an outer circle polishing assembly 2, the outer circle polishing assembly 2 is located on the side of the two positioning hole polishing assemblies 1, the lower end of the upper positioning hole polishing assembly 1 is provided with a pre-pressing assembly 3, the lower end of the platform 5 is provided with a mobile storage cabinet 31, the inside of the mobile storage cabinet 31 is provided with a dust collector, the positioning hole polishing assembly 1 and the outer circle polishing assembly 2 are both connected with the dust collector through flexible pipelines.

[0031] In the embodiment, when in use, the worker places the cold saw blade base body after end face polishing on the lower positioning hole polishing assembly 1, and roughly aligns the positioning hole with the corresponding position of the positioning hole polishing assembly 1, the upper positioning hole polishing assembly 1 drives the pre-pressing assembly 3 to pre-press the cold saw blade base body, the lower positioning hole polishing assembly 1 and the upper positioning hole polishing assembly 1 drive the cold saw blade base body to move and polish the positioning holes in turn, and the two positioning hole polishing assemblies 1 rotate synchronously under the drive of the corresponding motor one, drive the cold saw blade base body to rotate a circle and then change direction and reverse a circle, and the outer circle polishing assembly 2 polishes the outer circle of the cold saw blade base body, after polishing, the two positioning hole polishing assemblies 1 release the cold saw blade base body, the worker takes down the cold saw blade base body, the machine resets, the movable storage cabinet 31 is used for storing articles and facilitates the movement of the equipment, and the dust collector is used for collecting the debris generated in the polishing process.

[0032] The positioning hole polishing assembly 1 comprises a rotating platform 6, a gear ring part 12 and a plurality of rotating shafts 14. The rotating platform 6 is rotationally arranged on the rack 4. The end of the rotating platform 6 away from the rack 4 is fixed with a transmission assembly box 7. The end of the transmission assembly box 7 away from the rotating platform 6 is provided with a protective cover 8. The center position of the end of the transmission assembly box 7 away from the rotating platform 6 is fixed with an electric push rod 10. The telescopic end of the electric push rod 10 penetrates through the protective cover 8 and is provided with a pressing plate 9. The gear ring part 12 is rotationally arranged in the interior of the transmission assembly box 7. The interior of the transmission assembly box 7 is provided with a driving gear 11 rotationally arranged and a motor two for driving the driving gear 11 to rotate. The driving gear 11 and the gear ring part 12 are engaged. The plurality of rotating shafts 14 penetrate through the end of the transmission assembly box 7 away from the rotating platform 6 and are arranged in a circumferential direction around the electric push rod 10. The plurality of rotating shafts 14 are rotationally arranged on the transmission assembly box 7. The end of each of the plurality of rotating shafts 14 penetrating into the transmission assembly box 7 is fixed with a driven gear 13. Each of the plurality of driven gears 13 is engaged with the gear ring part 12. The end of each of the plurality of rotating shafts 14 penetrating out of the transmission assembly box 7 penetrates through the protective cover 8 and is detachably provided with a positioning hole polishing head 15. The end of the positioning hole polishing head 15 close to the rotating shaft 14 is cylindrical, and the end of the positioning hole polishing head 15 away from the rotating shaft 14 is conical.

[0033] In this embodiment, when the worker places the cold saw blade base on the positioning hole polishing assembly 1 located below, the positioning hole on the cold saw blade base is roughly aligned with the positioning hole polishing head 15, at this time, due to the existence of burrs on the lower end edge of the positioning hole, only the tip of the positioning hole polishing head 15 enters the positioning hole, the upper electric push rod 10 drives the corresponding pressing plate 9 to move downward, and drives the pre-pressing assembly 3 to move downward and contact with the cold saw blade base, the motor two in the positioning hole polishing assembly 1 located below drives the corresponding driving gear 11 to rotate, thereby driving the corresponding gear ring 12 to rotate, and then driving the corresponding several groups of driven gears 13 to rotate, the corresponding several groups of driven gears 13 drive the corresponding positioning hole polishing head 15 to rotate through the corresponding shaft 14, and the lower end edge of the positioning hole is polished to remove the burrs. Under the action of the pre-pressing assembly, the cold saw blade base descends, the cylindrical part of the positioning hole polishing head 15 completely penetrates the positioning hole, the positioning hole is positioned and polished, the upper electric push rod 10 drives the corresponding pressing plate 9 to continue to move downward, and drives the pre-pressing assembly 3 to move downward, the pre-pressing assembly 3 cooperates with the pressing plate 9 located below to completely clamp the cold saw blade base. After the polishing of the positioning hole by the positioning hole polishing head 15 located below is completed, the two electric push rods 10 drive the two pressing plates 9 to hold the cold saw blade base to move upward, the motor two in the positioning hole polishing assembly 1 located above drives the corresponding driving gear 11 to rotate, thereby driving the corresponding gear ring 12 to rotate, and then driving the corresponding several groups of driven gears 13 to rotate, the corresponding several groups of driven gears 13 drive the corresponding positioning hole polishing head 15 to rotate through the corresponding shaft 14, and the upper end edge of the positioning hole is polished to remove the burrs. The two electric push rods 10 drive the two pressing plates 9 to hold the cold saw blade base to move downward between the two groups of positioning hole polishing heads 15, the upper electric push rod 10 drives the corresponding pressing plate 9 and the pre-pressing assembly 3 to move upward to release the cold saw blade base, and the positioning hole polishing head 15 is detachably arranged on the shaft 14, so as to facilitate replacement of the corresponding size of the positioning hole polishing head 15 for different sizes of the positioning hole.

[0034] The outer circle polishing assembly 2 comprises an electric screw rod 16, a column 17 and an outer circle polishing head 18, the electric screw rod 16 is fixed on the upper end of the platform 5, the column 17 is fixed on the sliding block of the electric screw rod 16, and the outer circle polishing head 18 is detachably arranged on the column 17. A motor three for driving the outer circle polishing head 18 to rotate is arranged on the column 17, and a dust collecting hopper 30 is arranged on the column 17, the dust collecting hopper 30 is located below the outer circle polishing head 18, and the dust collecting hopper 30 is connected with the dust collector through a flexible pipeline.

[0035] In the embodiment, when the two pressing plates 9 and the pre-pressing assembly 3 completely clamp the cold saw blade base body, the two positioning hole polishing assemblies 1 are synchronously rotated under the driving of the corresponding motor one, the cold saw blade base body is rotated, the outer circle polishing head 18 is rotated under the driving of the corresponding motor two, the electric screw rod 16 drives the column 17 and the outer circle polishing head 18 to move, and the outer circle polishing head 18 is detachably arranged on the column 17, so that the outer circle polishing head 18 is convenient to replace. The dust collector is connected with the dust collecting hopper 30 through a flexible pipeline, and the dust collector can suck the debris falling into the dust collecting hopper 30 into the dust collector for collection.

[0036] The pre-pressing assembly 3 comprises a pressing ring 19, a plurality of circumferentially distributed guide pipes 20 and a plurality of circumferentially distributed springs 22. The guide pipes 20 are fixed at the lower end of the pressing plate 9 of the upper positioning hole polishing assembly 1, the pressing ring 19 is located below the pressing plate 9 of the upper positioning hole polishing assembly 1, the upper end of the pressing ring 19 is provided with a plurality of circumferentially distributed guide rods 21, the upper part of the guide rod 21 is a conical body, and the lower part is a cylindrical body, the number and position of the guide rod 21 correspond to those of the guide pipe 20, the outer diameter of the cylindrical body of the guide rod 21 is the same as the inner diameter of the guide pipe 20, the guide rod 21 is located below the guide pipe 20, and the number of the springs 22 corresponds to that of the guide pipes 20. The spring 22 is respectively sleeved outside the corresponding guide pipe 20, and the upper end of the spring 22 is connected with the pressing plate 9, and the lower end of the spring 22 is connected with the pressing ring 19.

[0037] In the embodiment, the electric push rod 10 located at the upper side drives the pressing plate 9 and the pre-pressing assembly 3 to descend, and the pressing ring 19 is in contact with the cold saw blade base body. At this time, only the conical body of the guide rod 21 enters the inside of the guide pipe 20. Due to the uneven distribution of burrs, the cold saw blade base body may produce slight shaking in the process that the lower positioning hole polishing head 15 removes the burrs on the lower edge of the positioning hole. The pressing ring 19 shakes with the cold saw blade base body and is always in contact with the cold saw blade base body under the action of the spring 22, so that the cold saw blade base body is prevented from deviating. After the lower edge of the positioning hole is polished, the electric push rod 10 located at the upper side continues to push the pressing plate 9 to move downward, compresses the spring 22, and the cylindrical body of the guide rod 21 enters the guide pipe 20. The pressing ring 19 completely presses the cold saw blade base body.

[0038] The gear ring 12 comprises an upper gear ring 23 and a lower gear ring 24. The transmission assembly box 7 is provided with a mounting plate 25. The mounting plate 25 is provided with a circular through hole with a size smaller than that of the gear ring 12. A plurality of balls 26 are rotatably arranged on the upper and lower end faces of the mounting plate 25. The upper gear ring 23 is located above the mounting plate 25, and the lower end face edge is in contact with the balls 26 on the upper end face of the mounting plate 25. The lower gear ring 24 is located below the mounting plate 25, and the upper end face edge is in contact with the balls 26 on the lower end face of the mounting plate 25. The upper gear ring 23 and the lower gear ring 24 are connected through bolts, and the bolts are located inside the circular through hole of the mounting plate 25.

[0039] In the present embodiment, the upper and lower toothed rings 23 and 24 are placed on the upper and lower sides of the mounting plate 25 respectively during installation, the upper and lower toothed rings are connected by bolts, and the mounting plate 25 is clamped, and the ball bearings 26 are used to reduce the friction between the upper and lower toothed rings 23 and 24 and the mounting plate 25.

[0040] The upper end face of the protective cover 8 of the lower positioning hole polishing assembly 1 is a slope 27 with a low center and a high periphery, an opening is formed in the center of the slope 27, and the plurality of positioning hole polishing heads 15 of the lower positioning hole polishing assembly 1 are all located above the slope 27; the corresponding electric push rods 10 extend out of the protective cover 8 from the opening, the outer sides of the corresponding electric push rods 10 are sleeved with telescopic pipes with a circular cross section, the inside of the protective cover 8 is provided with two symmetrical dust collecting boxes 28, the dust collecting boxes 28 are semicircular rings with a U-shaped cross section, the two dust collecting boxes 28 are arranged on the two sides of the telescopic pipe and are attached to the outer wall of the telescopic pipe, the two ends of the semicircular rings of the two dust collecting boxes 28 are in contact with each other, and a magnet piece 29 is arranged on the end face of each of the two ends of the semicircular rings, the two dust collecting boxes 28 are located below the opening on the slope 27, and the two dust collecting boxes 28 are connected to the dust collector through a flexible pipeline.

[0041] In the present embodiment, the debris generated during the positioning hole polishing process falls on the slope and falls into the dust collecting boxes 28 under the action of gravity, the two dust collecting boxes 28 are connected through the magnet pieces 29 and are sleeved on the outer sides of the telescopic pipes to prevent the dust collecting boxes 28 from deviating, and the two dust collecting boxes 28 are connected to the dust collector through a flexible pipeline, so that the debris generated during the positioning hole polishing process falls into the dust collecting boxes 28 through the slope 27 and is sucked into the dust collector and collected.

[0042] The working principle of the utility model is as follows: when in use, the worker places the cold saw blade base body polished through end face polishing on the lower positioning hole polishing assembly 1 and roughly aligns the positioning holes on the cold saw blade base body with the corresponding positions of the positioning hole polishing assembly 1 and the positioning hole polishing heads 15, at this time, due to the existence of burrs on the lower end edges of the positioning holes, only the tips of the positioning hole polishing heads 15 enter the positioning holes;

[0043] The upper electric push rod 10 drives the pressing plate 9 and the pre-pressing assembly 3 to descend, the pressing ring 19 is in contact with the cold saw blade base body, at this time, only the conical part of the guide rod 21 enters the inside of the guide pipe 20, due to the uneven distribution of the burrs, the cold saw blade base body may slightly shake during the process in which the lower positioning hole polishing head 15 removes the burrs on the lower edge of the positioning hole, the pressing ring 19 shakes along with the cold saw blade base body and is always in contact with the cold saw blade base body under the action of the spring 22, so that the cold saw blade base body is prevented from deviating;

[0044] The motor two in the lower positioning hole polishing assembly 1 drives the corresponding driving gear 11 to rotate, thereby driving the corresponding gear ring 12 to rotate, and in turn driving the corresponding groups of driven gears 13 to rotate. The corresponding groups of driven gears 13 drive the corresponding positioning hole polishing head 15 to rotate through the corresponding shaft 14, polish the lower end edge of the positioning hole, remove burrs, the upper electric push rod 10 continues to push the compression plate 9 to move downward, compresses the spring 22, and the cold saw blade base body is lowered. The cylindrical part of the positioning hole polishing head 15 completely penetrates the positioning hole, and the cylindrical part of the guide rod 21 enters the guide pipe 20, and the compression ring 19 completely compresses the cold saw blade base body;

[0045] The two electric push rods 10 drive the two compression plates 9 to clamp the cold saw blade base body to move upward, the motor two in the upper positioning hole polishing assembly 1 drives the corresponding driving gear 11 to rotate, thereby driving the corresponding gear ring 12 to rotate, and in turn driving the corresponding groups of driven gears 13 to rotate. The corresponding groups of driven gears 13 drive the corresponding positioning hole polishing head 15 to rotate through the corresponding shaft 14, polish the upper end edge of the positioning hole, remove burrs, and the debris generated during the positioning hole polishing process falls into the debris collecting box 28 through the inclined surface 27 and is collected by the dust collector,

[0046] Meanwhile, the two positioning hole polishing assemblies 1 are driven by the corresponding motor one to rotate synchronously, drive the cold saw blade base body to rotate a circle and then change direction to reverse a circle, the outer circle polishing head 18 is driven by the corresponding motor two to rotate, the electric screw rod 16 drives the column 17 and the outer circle polishing head 18 to move, and the outer circle of the cold saw blade base body is polished. The debris generated during the outer circle polishing process falls into the debris collecting hopper 30 and is collected by the dust collector;

[0047] After polishing, the two electric push rods 10 drive the two compression plates 9 to clamp the cold saw blade base body to move downward between the two groups of positioning hole polishing heads 15, the upper electric push rod 10 drives the corresponding compression plate 9 and the pre-compression assembly 3 to move upward, releases the cold saw blade base body, the worker takes down the cold saw blade base body, and the machine resets;

[0048] The moving storage cabinet 31 is used for storing articles and facilitating the movement of the equipment; the positioning hole polishing head 15 is detachably arranged on the shaft 14, facilitating the replacement of the corresponding size of the positioning hole polishing head 15 for different sizes of the positioning hole, and the outer circle polishing head 18 is detachably arranged on the column 17, facilitating replacement;

[0049] When the gear ring part 12 is installed, the upper gear ring 23 and the lower gear ring 24 are respectively placed on the upper and lower sides of the installation plate 25, the upper gear ring and the lower gear ring are connected by bolts, and the installation plate 25 is clamped, the ball 26 is used to reduce the friction between the upper gear ring 23, the lower gear ring 24 and the installation plate 25; two scrap collecting boxes 28 are connected through the magnet sheet 29, are sleeved outside the telescopic pipe, and prevent the scrap collecting boxes 28 from deviating.

[0050] In summary, through cooperation of the two positioning hole polishing assemblies 1 and the pre-pressing assembly 3, simultaneous polishing of the positioning holes of the cold saw blade base body is realized, time is saved;

[0051] Through cooperation of the pre-pressing assembly 3, the two positioning hole polishing assemblies 1 and the outer circle polishing assembly 2, simultaneous polishing of the outer circle and the positioning holes of the cold saw blade base body is realized, the process of manually transferring the cold saw blade base body is saved, the working procedure is saved, and the efficiency is improved;

[0052] Through cooperation of the inclined surface 27, the scrap collecting box 28 and the dust collector, collection of the scraps in the positioning hole polishing process is realized; through cooperation of the scrap collecting box 30 and the dust collector, collection of the scraps in the outer circle polishing process is realized, and the environment is prevented from being polluted.

[0053] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A high-performance cold saw blade polishing device, comprising a platform (5) and two symmetrical positioning hole polishing assemblies (1), characterized in that, The upper end of the platform (5) is fixed with a rack (4), the cross section of the rack (4) is transverse U shape, one of the positioning hole polishing assembly (1) is rotatably arranged on the upper end surface of the lower end horizontal part of the rack (4), the other positioning hole polishing assembly (1) is rotatably arranged on the lower end surface of the upper end horizontal part of the rack (4), the upper end and the lower end of the rack (4) are provided with a motor one for driving the positioning hole polishing assembly (1) to rotate, the upper end of the platform (5) is provided with an outer circle polishing assembly (2), the outer circle polishing assembly (2) is located on the side of the two positioning hole polishing assemblies (1), the lower end of the upper positioning hole polishing assembly (1) is provided with a pre-pressing assembly (3), the lower end of the platform (5) is provided with a mobile storage cabinet (31), the mobile storage cabinet (31) is internally provided with a dust collector, the positioning hole polishing assembly (1) and the outer circle polishing assembly (2) are connected with the dust collector through flexible pipelines.

2. The polishing apparatus of high-performance cold saw blade according to claim 1, wherein, The positioning hole polishing assembly (1) comprises a rotating platform (6), a gear ring (12) and a plurality of rotating shafts (14), the rotating platform (6) is rotatably arranged on the rack (4), the end of the rotating platform (6) away from the rack (4) is fixed with a transmission assembly box (7), the end of the transmission assembly box (7) away from the rotating platform (6) is provided with a protective cover (8), and the center position of the end of the transmission assembly box (7) away from the rotating platform (6) is fixed with an electric push rod (10), the telescopic end of the electric push rod (10) penetrates through the protective cover (8) and is provided with a pressing plate (9), the gear ring (12) is rotatably arranged in the transmission assembly box (7), the transmission assembly box (7) is internally provided with a driving gear (11) rotatably arranged and a motor two for driving the driving gear (11) to rotate, the driving gear (11) and the gear ring (12) are engaged, the plurality of rotating shafts (14) penetrate through the end of the transmission assembly box (7) away from the rotating platform (6) and are arranged around the circumference of the electric push rod (10), the plurality of rotating shafts (14) are rotatably arranged on the transmission assembly box (7), the end of the plurality of rotating shafts (14) extending into the transmission assembly box (7) is fixed with a driven gear (13), the plurality of driven gears (13) are engaged with the gear ring (12), the end of the plurality of rotating shafts (14) extending out of the transmission assembly box (7) penetrates through the protective cover (8) and is detachably provided with a positioning hole polishing head (15), the end of the positioning hole polishing head (15) close to the rotating shaft (14) is cylindrical, and the end of the positioning hole polishing head (15) away from the rotating shaft (14) is conical.

3. The polishing apparatus of high-performance cold saw blade according to claim 2, wherein, The outer circle polishing assembly (2) comprises an electric screw rod (16), a column (17) and an outer circle polishing head (18), the electric screw rod (16) is fixed on the upper end of the platform (5), the column (17) is fixed on the sliding block of the electric screw rod (16), the outer circle polishing head (18) is rotatably arranged on the column (17), the column (17) is provided with a motor three for driving the outer circle polishing head (18) to rotate, the column (17) is provided with a scrap collecting hopper (30), the scrap collecting hopper (30) is located below the outer circle polishing head (18), and the scrap collecting hopper (30) is connected with the dust collector through a flexible pipeline.

4. The polishing apparatus of high-performance cold saw blade according to claim 3, wherein, The pre-pressing assembly (3) comprises a pressing ring (19), a plurality of circumferentially distributed guide pipes (20) and a plurality of circumferentially distributed springs (22), the plurality of guide pipes (20) are fixed at the lower end of the pressing plate (9) of the upper locating hole polishing assembly (1), the pressing ring (19) is located below the pressing plate (9) of the upper locating hole polishing assembly (1), the upper end of the pressing ring (19) is provided with a plurality of circumferentially distributed guide rods (21), the upper part of the guide rod (21) is a cone, and the lower part is a cylinder, the number and position of the guide rod (21) correspond to those of the guide pipe (20), the outer diameter of the cylinder of the guide rod (21) is the same as the inner diameter of the guide pipe (20), the guide rod (21) is located below the guide pipe (20), the number of the spring (22) corresponds to that of the guide pipe (20), the spring (22) is respectively sleeved outside the corresponding guide pipe (20), and the upper end of the spring (22) is connected with the pressing plate (9), and the lower end of the spring (22) is connected with the pressing ring (19).

5. The polishing apparatus of high-performance cold saw blade according to claim 4, wherein, The gear ring part (12) comprises an upper gear ring (23) and a lower gear ring (24), the transmission assembly box (7) is provided with a mounting plate (25), the mounting plate (25) is provided with a circular through hole with a size smaller than that of the gear ring part (12), the mounting plate (25) is provided with a plurality of rolling balls (26) on the upper and lower end faces, the upper gear ring (23) is located above the mounting plate (25), and the lower end face edge is in contact with the rolling balls (26) on the upper end face of the mounting plate (25), the lower gear ring (24) is located below the mounting plate (25), and the upper end face edge is in contact with the rolling balls (26) on the lower end face of the mounting plate (25), the upper gear ring (23) and the lower gear ring (24) are connected through bolts, and the bolts are located inside the circular through hole of the mounting plate (25).

6. The polishing apparatus of a high-performance cold saw blade according to claim 5, wherein, The upper end face of the protective cover (8) of the lower locating hole polishing assembly (1) is a slope (27) with a center lower and a periphery higher, an opening is formed in the center of the slope (27), a plurality of locating hole polishing heads (15) of the lower locating hole polishing assembly (1) are located above the slope (27), corresponding electric push rods (10) extend out of the protective cover (8) from the opening, a telescopic pipe with a circular cross section is sleeved outside the corresponding electric push rod (10), the inside of the protective cover (8) is provided with two symmetrically arranged scrap collecting boxes (28), the scrap collecting box (28) is a semicircular ring with a U-shaped cross section, the two scrap collecting boxes (28) are arranged on the two sides of the telescopic pipe, the inner wall of the semicircular ring is attached to the outer wall of the telescopic pipe, the two ends of the semicircular ring of the two scrap collecting boxes (28) are in contact with each other, a magnet piece (29) is arranged on the end face of each of the two ends of the semicircular ring, the two scrap collecting boxes (28) are located below the opening on the slope (27), and the two scrap collecting boxes (28) are connected with a dust collector through a flexible pipeline.

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