CN114985840A - Automatic grinding device for circular saw blade - Google Patents
Automatic grinding device for circular saw blade Download PDFInfo
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- CN114985840A CN114985840A CN202210925431.3A CN202210925431A CN114985840A CN 114985840 A CN114985840 A CN 114985840A CN 202210925431 A CN202210925431 A CN 202210925431A CN 114985840 A CN114985840 A CN 114985840A
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- Prior art keywords
- saw blade
- support
- grinding
- bracket
- module
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
- B23D63/08—Sharpening the cutting edges of saw teeth
- B23D63/12—Sharpening the cutting edges of saw teeth by grinding
- B23D63/14—Sharpening circular saw blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The invention relates to an automatic grinding device for a circular saw blade, which comprises: a substrate; the grinding assembly is used for grinding the saw blade; the saw blade adjusting module is used for adjusting the relative position of the saw blade and the grinding assembly and the machining angle of the rear teeth of the saw blade; the tooth shifting module shifts the saw blade to rotate to the next tooth machining station; the grinding adjusting module is used for realizing the X-axis direction, the Z-axis direction and the horizontal rotation adjustment of the grinding assembly and realizing the grinding processing of the grinding assembly on different angles and feeding of the saw blade; the compensation module is used for preventing the cutting surface of the discharge electrode from being excessively worn; the saw blade clamping module clamps the saw blade in the machining process. The automatic design is carried out on a plurality of processes such as radial adjustment, rear angle adjustment and the like of the saw blade, so that the machining efficiency, the machining precision and the consistency of the tooth shape size are greatly improved; all processing and adjusting the module all set up on the equal base plate, its compact structure, the occupation space of the whole equipment of effectual reduction, the overall arrangement of the enterprise's equipment of being convenient for.
Description
Technical Field
The invention relates to the technical field of circular saw blade processing, in particular to an automatic grinding device for a circular saw blade.
Background
The existing circular saw blade tooth type grinding equipment is low in automation degree, processes such as back angle machining and adjusting need manual intervention at the radial adjustment of a saw blade, adjustment is assisted, the machining efficiency is greatly influenced by the adjusting mode, and the consistency of tooth type machining cannot be guaranteed. Therefore, the invention develops the automatic grinding device of the circular saw blade to solve the problems in the prior art.
Disclosure of Invention
The invention aims to: the utility model provides an automatic grinder of saw blade to solve among the prior art processing equipment degree of automation low, machining precision and uniformity poor problem.
The technical scheme of the invention is as follows: an automatic grinding apparatus for a circular saw blade, comprising: a substrate; the grinding assembly is provided with a discharge electrode, and the discharge electrode discharges to grind the saw blade; the saw blade adjusting module comprises a fourth bracket which is rotationally connected with the substrate; the radial adjusting assembly is arranged on the fourth support and used for mounting the saw blade, and the rear angle adjusting module is connected with the fourth support, so that the adjustment of the relative position of the saw blade and the grinding assembly and the machining angle of the rear teeth of the saw blade is realized, and the grinding assembly is convenient to machine; the tooth shifting module is rotationally connected with the fourth bracket and used for shifting the saw blade to rotate to the next tooth machining station; a grinding adjustment module comprising an X-axis adjustment assembly disposed on a substrate; the Z-axis adjusting component is arranged on the X-axis adjusting component; the R-axis adjusting assembly is arranged on the Z-axis adjusting assembly, realizes the X-axis direction, the Z-axis direction and the horizontal rotation adjustment of the grinding assembly, and is matched with the saw blade adjusting module to realize the grinding processing of the grinding assembly on different angles and feeding of the saw blade; the compensation module is matched with the grinding adjusting assembly and can be used for turning the discharge electrode to prevent the cutting surface of the discharge electrode from being excessively worn; the saw blade clamping module clamps the saw blade in the machining process to prevent shaking; the saw blade adjusting module is provided with a positioning needle, and the operation processes of the rear angle adjusting module, the radial adjusting assembly, the gear shifting module and the grinding adjusting module of the saw blade all use the positioning needle as a reference.
Preferably, the X-axis adjusting assembly comprises a first bracket, and the first bracket is connected to the substrate through a first slide rail arranged horizontally; the first driving mechanism is fixedly arranged on the substrate and can drive the first support to reciprocate along the first sliding rail;
the Z-axis adjusting assembly comprises a second support, and the second support is connected to the first support through a second sliding rail which is vertically arranged; the second driving mechanism is fixedly arranged on the first support and can drive the second support to reciprocate along the second sliding rail;
the R-axis adjusting assembly comprises a third support fixedly connected with the second support and an R axis arranged on the third support, and the R axis is vertically arranged; and the third driving mechanism is arranged on the second bracket and can drive the R shaft to rotate along the axial direction of the vertical direction.
Preferably, the grinding assembly comprises a grinding head and a fourth driving mechanism, the discharge electrode is annular and is arranged in the grinding head, and the grinding head is connected with the R shaft and can rotate along with the R shaft; the fourth driving mechanism is connected with the grinding head and can drive the discharge electrode to rotate.
Preferably, the rear angle adjusting module comprises a fifth bracket rotatably connected with the base plate; a fifth driving mechanism for driving the fifth bracket to rotate; the fifth support and the fourth support are respectively arranged on two sides of the base plate and are connected through a first transmission shaft penetrating through the base plate, and the fourth support can rotate along with the fifth support; the positioning needle is coaxial with the first transmission shaft, and the positioning needle is arranged on the fourth support and matched with the tooth-shaped tip of the saw blade.
Preferably, the radial adjusting assembly comprises a third slide rail fixedly arranged on the fourth bracket and a sixth driving mechanism; and the sixth bracket is arranged on the third sliding rail and can reciprocate along the third sliding rail under the drive of a sixth driving mechanism.
Preferably, the shifting gear module comprises a seventh bracket which is rotatably connected with the fourth bracket; the seventh support is provided with a seventh driving mechanism and an eighth support connected through a fourth sliding rail, and the seventh driving mechanism can drive the eighth support to reciprocate on the fourth sliding rail;
the eighth support is provided with an eighth driving mechanism, a deflector rod assembly in rotary connection and a ninth support connected through a fifth sliding rail, the eighth driving mechanism can drive the ninth support to reciprocate along the fifth sliding rail, and the fifth sliding rail and the fourth sliding rail are arranged in parallel;
the first shifting block with a circular section is rotatably connected to the ninth bracket, and when the first shifting block reciprocates along with the ninth bracket, the first shifting block can shift the shifting rod assembly to rotate along the rotary connection position of the shifting rod assembly and the eighth bracket; one end of the shifting lever assembly, which is far away from the first shifting block, is connected with the saw blade in a matching way.
Preferably, the gear shifting module further comprises a gear shifting stroke assembly arranged on the fourth support, the gear shifting stroke assembly is provided with at least one first guide surface, the first guide surface is connected with a guide wheel arranged on the eighth support, namely when the eighth support moves along the fourth slide rail, the guide wheel moves along the guide surface, so that the gear shifting module rotates along the hinged position of the gear shifting module and the fourth support.
Preferably, the compensation module comprises a tenth support arranged on the substrate, wherein a turning tool is arranged on the tenth support, and the turning tool is connected with the discharge electrode in a matching manner.
Preferably, the saw blade clamping module comprises an eleventh bracket arranged on the fourth bracket, the eleventh bracket is provided with clamping jaws, and the clamping jaws are arranged on two sides of the saw blade and can move oppositely to clamp the saw blade; and the clamping jaw is also provided with a negative electrode.
Compared with the prior art, the invention has the advantages that:
(1) the automatic design is carried out on a plurality of processes such as radial adjustment, rear angle adjustment and the like of the saw blade, so that the machining efficiency, the machining precision and the consistency of the tooth shape size are greatly improved;
(2) all processing and adjusting module all set up on the base plate, and its compact structure, the effectual occupation space that reduces whole equipment is convenient for the overall arrangement of enterprise's equipment.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic front perspective view of an automatic circular saw blade grinding apparatus according to the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of a reverse side perspective structure of the automatic circular saw blade grinding device according to the present invention;
FIG. 4 is a schematic view of the structure of the substrate and the first frame of the present invention;
FIG. 5 is a schematic view of the internal structure of the R-axis adjusting assembly of the present invention;
FIG. 6 is a schematic view of the polishing assembly of the present invention;
FIG. 7 is a schematic view of a radial adjustment assembly according to the present invention;
FIG. 8 is a schematic view of the relief angle adjustment module of the present invention shown in FIG. 1;
FIG. 9 is a schematic view of the rear angle adjusting module of the present invention, shown in FIG. 2;
FIG. 10 is a schematic view of an internal structure of the gear shifting module according to the present invention;
FIG. 11 is a schematic view of the driving lever assembly according to the present invention;
FIG. 12 is a schematic structural view of the tooth shifting stroke assembly of the present invention;
FIG. 13 is a schematic structural diagram of a compensation module according to the present invention;
FIG. 14 is a schematic view of a saw blade clamping module according to the present invention;
wherein: a substrate 1, a first window 11;
the grinding adjusting module 2, the X-axis adjusting assembly 21, the first bracket 211, the second window 2111, the first slide rail 212, the first sensor 2121, the first driving mechanism 213, the first reducer 2131, the first lead screw 2132, the Z-axis adjusting assembly 22, the second bracket 221, the second slide rail 222, the second sensor 2221, the second driving mechanism 223, the second reducer 2231, the second lead screw 2232, the R-axis adjusting assembly 23, the third bracket 231, the third sensor 2311, the R-axis 232, the first gear 2321, the third sensing block 2322, and the third driving mechanism 233;
the grinding component 3, the grinding head 31, the fourth driving mechanism 32, the discharge electrode 33 and the twelfth bracket 34;
the saw blade adjusting module 4, the fourth bracket 41, the radial adjusting assembly 42, the third slide rail 421, the sixth driving mechanism 422, the sixth bracket 423, the mounting hole 4231, the thirteenth bracket 424, the third lead screw 425, the relief angle adjusting module 43, the fifth bracket 431, the first mounting plate 4311, the second mounting plate 4312, the second connecting block 4313, the third connecting block 4314, the sixth sensor 4315, the encoder 4316, the fifth driving mechanism 432, the speed reducer 4321, the universal coupling 4322, the fifth lead screw 4323, the first transmission shaft 44 and the positioning pin 441;
the shifting block 5, a seventh bracket 51, a fifth sensor 511, a seventh driving mechanism 52, a fourth screw rod 521, a first limit ring 522, a first protrusion 5221, a fourth sensor 523, a fourth slide rail 53, an eighth bracket 54, a first connecting block 541, a fifth sensing block 542, a guide wheel 543, an eighth driving mechanism 55, a shifting lever assembly 56, a first shifting lever 561, a second guide surface 5611, a reset rod 5612, a compression spring 5613, a second shifting lever 562, a shifting needle 5621, a fifth slide rail 57, a ninth bracket 58, a first shifting block 581, a shifting tooth stroke assembly 59, a first guide surface 591, a pin hole 592 and an arc-shaped hole 593;
the compensation module 6, a tenth bracket 61 and a turning tool 62;
a blade clamping module 7, an eleventh bracket 71 and a clamping jaw 72.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
as shown in fig. 1 to 3, an automatic grinding apparatus for a circular saw blade includes:
the display device comprises a substrate 1, wherein a first window 11 is formed in the substrate 1;
as shown in fig. 3 to 5, the grinding adjustment module 2:
the grinding adjusting module 2 comprises an X-axis adjusting component 21 arranged on the substrate 1, the X-axis adjusting component 21 comprises a first support 211, the first support 211 is connected to the substrate 1 through a first slide rail 212 which is horizontally arranged, and the first slide rail 212 is at least arranged at two positions and is arranged in parallel so as to ensure the stability of the operation of the first support 211; the first driving mechanism 213 is fixedly disposed on the substrate 1, and the first driving mechanism 213 may be an air cylinder, and if the first driving mechanism 213 is an air cylinder, a piston end of the air cylinder is directly connected to the first support 211, and the air cylinder telescopically drives the first support 211 to reciprocate along the first slide rail 212; in this embodiment, the first driving mechanism 213 is a servo motor, a rotor end of the servo motor is connected to a first reducer 2131 through a belt, the first reducer 2131 is connected to a first lead screw 2132, a threaded hole matched with the first lead screw 2132 is formed in the first bracket 211, the servo motor drives the first lead screw 2132 to rotate through the first reducer 2131, and the first lead screw 2132 is matched with the threaded hole in the first bracket 211 to drive the first bracket 211 to reciprocate along the first slide rail 212. At least two first sensors 2121 are further disposed on the substrate 1, the first sensors 2121 are disposed on a stroke path of the first support 211, so that when the first support 211 moves to a certain position along the first sliding rail 212, the first sensors 2121 can sense the certain position, that is, when the first sensors 2121 sense the first support 211, the first driving mechanism 213 stops, which can prevent the first support 211 from exceeding a track of the first sliding rail 212, and by reasonably disposing the positions of the first sensors 2121, interference between the first support 211 and other mechanisms during operation can also be avoided.
The Z-axis adjusting assembly 22 includes a second bracket 221, the second bracket 221 is connected to the first bracket 211 through a second slide rail 222 vertically disposed, and the second slide rail 222 is at least disposed at two positions and disposed in parallel to ensure the stability of the operation of the second bracket 221. The second driving mechanism 223 is fixedly arranged on the first support 211, the second driving mechanism 223 can be arranged as a cylinder, if the cylinder is arranged, the cylinder is vertically arranged upwards or downwards, the piston end is directly connected with the second support 221, and the purpose that the second support 221 reciprocates along the second slide rail 222 is achieved through the telescopic motion of the cylinder. In this embodiment, the second driving mechanism 223 is a servo motor, a rotor end of the servo motor is connected to a second speed reducer 2231 disposed on the first bracket 211 through a belt, a second lead screw 2232 is connected to the second speed reducer 2231, the second lead screw 2232 is connected to a threaded hole disposed on the second bracket 221 in a matching manner, the servo motor drives the second lead screw 2232 to rotate through the second speed reducer 2231, and the purpose of driving the second bracket 221 to move along the second slide rail 222 is achieved by matching the second lead screw 2232 with the threaded hole disposed on the second bracket 221. At least two second sensors 2221 are arranged on the first support 211, and the second sensors 2221 are arranged on the stroke path of the second support 221, so that when the second support 221 moves to a certain position along the second slide rail 222, the second sensors 2221 can sense the second support 221, at this time, the second driving mechanism 223 stops, the stroke of the second support 221 can be prevented from exceeding the second slide rail 222, and interference between the second support 221 and other mechanisms in the moving process can be prevented by reasonably arranging the position of the second sensors 2221.
The R-axis adjusting assembly 23 includes a third bracket 231 fixedly connected with the second bracket 221, and an R-axis 232 disposed on the third bracket 231, wherein the R-axis 232 is vertically disposed; the third driving mechanism 233 is disposed on the second bracket 221, the third driving mechanism 233 may be a servo motor, the R-shaft 232 is disposed with a first gear 2321, and the servo motor may directly drive the first gear 2321 through a belt or indirectly drive the R-shaft 232 through a transmission shaft. The third bracket 231 is at least provided with two third sensors 2311, the first gear 2321 is at least provided with two third sensing blocks 2322 corresponding to the third sensors 2311, when the R shaft 232 rotates, and the third sensors 2311 sense the third sensing blocks 2322, the third driving mechanism 233 stops to limit the rotation angle of the R shaft 232, so that the R shaft adjusting assembly 23, the grinding assembly 3 and the like are prevented from interfering with other mechanisms due to the fact that the rotation angle of the R shaft 232 is too large.
The grinding component 3 is connected with the lower end of the R shaft, and the grinding adjusting module 2 adjusts the position of the grinding component 3, namely the X adjusting component 21 adjusts the grinding component 3 in the horizontal direction, and the grinding component comprises feeding, retracting and the like during saw blade tooth type grinding; the Z-axis adjusting component 22 realizes the adjustment of the grinding component 3 in the vertical direction, which comprises the adjustment of the grinding position and the small-amplitude movement of the grinding component 3 in the vertical direction all the time in the grinding process, so that the discharge electrodes 33 are uniformly worn, and the abnormal wear caused by the grinding of the discharge electrodes 33 by a fixed ring surface all the time is avoided; the R-axis adjusting assembly 23 realizes the rotation of the grinding assembly 3 in the horizontal direction, and can grind the tooth-shaped side edge of the saw blade.
In this embodiment, the first bracket 211 is provided with a second window 2111, and the position of the second window 2111 corresponds to the position of the first window 11; one end of the second bracket 221 passes through the second window 2111 and is connected to the third bracket 231, one end of the third bracket 231, which is far away from the second bracket 221, passes through the first window 11, and the R-axis 232 is disposed on the third bracket 231, i.e., the R-axis 232 and the polishing assembly 3 are disposed on one side of the substrate 1, which is far away from the first bracket 211. Compared with the traditional mode that the grinding mechanism and the grinding adjusting mechanism are designed on the same side of the substrate 1, the grinding adjusting mechanism fully utilizes the space and greatly reduces the volume of the whole device.
As shown in fig. 6, the grinding assembly 3:
the grinding assembly 3 comprises a grinding head 31, a fourth driving mechanism 32 connected with the grinding head 31, a discharge electrode 33 is in a circular ring shape and is arranged in the grinding head 31, the fourth driving mechanism 32 can drive the discharge electrode 33 to rotate, the discharge electrode 33 rotates and discharges to grind saw blade teeth; the grinding head 31 is connected to the R-axis 232, and is rotatable with the R-axis 232. In this embodiment, the fourth driving mechanism 32 is a motor, and is connected to the transmission shaft on the discharge electrode 33 through a belt, so as to drive the discharge electrode 33 to rotate. The grinding head 31 is fixedly connected with a twelfth bracket 34, the fourth driving mechanism 32 is connected with the upper end of the twelfth bracket 34, and the transmission belt is arranged in the twelfth bracket 34, so that the layout is compact, and the volume of the device is reduced.
As shown in fig. 7 to 9, the blade adjusting module 4:
the saw blade adjusting module 4 comprises a fourth bracket 41 which is rotatably connected with the substrate 1; the radial adjusting assembly 42 arranged on the fourth support 41 and used for installing the saw blade and the rear angle adjusting module 43 connected with the fourth support 41 realize the adjustment of the relative position of the saw blade and the grinding assembly 3 and the machining angle of the rear teeth of the saw blade, so that the grinding assembly 3 can be conveniently machined.
As shown in fig. 8 to 9, the rear angle adjusting module 43:
the rear angle adjusting module 43 includes a fifth bracket 431 rotatably connected to the substrate 1; a fifth driving mechanism 432 for driving the fifth frame 431 to rotate; the fifth bracket 431 and the fourth bracket 41 are respectively arranged at two sides of the base plate, and are connected through a first transmission shaft 44 passing through the base plate 1, and the fourth bracket 41 can rotate along with the fifth bracket 431; a positioning pin 441 is coaxially arranged with the first transmission shaft 44, and the positioning pin 441 is arranged on the fourth bracket 41, and is matched with the tooth-shaped tip of the saw blade.
In this embodiment, the fifth driving mechanism 432 is driven by a motor and is connected to a speed reducer 4321, and a rotor end of the speed reducer 4321 is connected to the fifth lead screw 4323 through a universal coupling 4322. The fifth bracket 431 comprises a first mounting plate 4311 rotatably connected to the base plate 1, and the first mounting plate 4311 is fixedly connected with the first transmission shaft 44; the first mounting plate 4311 is connected to the second mounting plate 4312 through a second connection block 4313, the second mounting plate 4312 is parallel to the first mounting plate 4311, a third connection block 4314 is disposed therebetween, and the third connection block 4314 is rotatably connected to the first mounting plate 4311 and the second mounting plate 4312. The fifth lead screw 4323 passes through the third connecting block 4314 and is connected with a threaded hole on the third connecting block 4314 in a matching manner. When the fifth driving mechanism 432 operates, the fifth lead screw 4323 is driven to rotate by the universal coupling 4322, and under the matching of the fifth lead screw 4323 and the threaded hole of the third connecting block 4314, the third connecting block 4314 is pulled (pushed) to move, so that the first mounting plate 4311 rotates along the rotational connection between the first mounting plate 4311 and the base plate 1; then, the fourth bracket 41 is driven to rotate by the first transmission shaft 44, so as to achieve the purpose of adjusting the back angle of the saw blade.
In this embodiment, the positioning pin 441 can be fixedly connected to the first transmission shaft 44 and rotate with the first transmission shaft 44; the positioning shaft 441 may be mounted on the fourth bracket 41 without being connected to the first transmission shaft 44, and if the positioning shaft is directly mounted on the fourth bracket 41, the mounting position thereof needs to be coaxial with the first transmission shaft 44. In addition, one end of the positioning pin 441 far away from the fourth bracket 41 is designed to be a sharp angle, and when the saw blade is positioned, the sharp angle of the positioning pin 441 and the corner of the saw blade tooth shape need to be on the same straight line.
The sixth sensors 4315 are disposed on both sides of the stroke of the second mounting plate 4312, that is, when the sixth sensors 4315 sense the second mounting plate 4312, the fifth driving mechanism 432 is stopped, which limits the adjustment range of the rear angle of the saw blade and prevents the fourth bracket 41, the fifth bracket 431, and other mechanisms from rotating at an excessively large angle and interfering with other mechanisms.
An encoder 4316 is further disposed at the rotational connection position of the first mounting plate 4311 and the base plate 1, and is used for detecting and transmitting the rotational angle of the first mounting plate 4311, i.e. the angle of the saw blade rear angle adjustment, in real time and feeding back the detected angle to the operation end.
As shown in fig. 7, the radial adjustment assembly 42:
the radial adjusting assembly 42 includes a third slide rail 421 fixedly disposed on the fourth bracket 41, and a sixth driving mechanism 422; and a sixth support 423 disposed on the third slide rail 421, wherein the sixth support 423 can reciprocate along the third slide rail 421 under the driving of a sixth driving mechanism 422. The sixth support 423 is provided with a plurality of mounting holes 4231, and the saw blade is mounted on the sixth support 423 through the mounting holes 4231, so that the relative position of the saw blade and the grinding assembly 3 can be adjusted when the sixth support 423 moves on the third slide rail 421. In this embodiment, the sixth driving mechanism 422 is a servo motor, and is connected to the sixth support 423 through the third screw rod 425 and the belt, and the axial direction of the third screw rod 425 is the same as the direction of the third slide rail 421, specifically: a thirteenth bracket 424 is arranged on the fourth bracket 41, and the servo motor is arranged on the thirteenth bracket 424; a threaded hole matched and connected with the third screw rod 425 is formed in the sixth support 423; the servo motor drives the third screw rod 425 to rotate through the belt, and further drives the sixth support 423 to reciprocate along the third slide rail 421.
As shown in fig. 10 to 12, the gear-shifting module 5:
the tooth shifting module 5 realizes the purpose of shifting the saw blade to rotate to the next tooth profile machining station. The gear shifting module 5 comprises a seventh bracket 51 which is rotationally connected with the fourth bracket 41; the seventh support 51 is provided with a seventh driving mechanism 52 and an eighth support 54 connected by a fourth slide rail 53, the seventh driving mechanism 52 can be a motor, and the fourth slide rail 53 is provided with at least two groups and arranged in parallel; the seventh driving mechanism 52 can drive the eighth bracket 54 to reciprocate on the fourth slide rail 53.
In this embodiment, the seventh driving mechanism 52 is a servo motor, a rotor end of the seventh driving mechanism is connected to the fourth screw rod 521, the eighth bracket 54 is provided with a first connecting block 541, the first connecting block 541 is provided with a threaded hole in fit connection with the fourth screw rod 521, and the servo motor drives the eighth bracket 54 to move along the fourth sliding rail 53 through the fit between the fourth screw rod 521 and the threaded hole.
A first limit ring 522 is arranged at the joint of the servo motor and the fourth screw rod 521, the first limit ring 522 is annular and can rotate along with the rotor of the servo motor, and a first protrusion 5221 is arranged on the first limit ring 522; the seventh bracket 51 is provided with a fourth sensor 523 capable of sensing the first protrusion 5221, that is, when the first limiting ring 522 rotates to the first protrusion 5221 times that the fourth sensor 523 senses, the seventh driving mechanism 52 stops; meanwhile, the seventh bracket 51 is further provided with a fifth sensor 511, the eighth bracket 54 is provided with a fifth sensing block 542 matched with the fifth sensor 511, that is, when the seventh driving mechanism 52 drives the eighth bracket 54 to move upwards and the fifth sensing block 542 is sensed by the fifth sensor 511, the seventh driving mechanism 52 stops, and through the design of the fourth sensor 523 and the fifth sensor 511, the stroke range of the eighth bracket 54 is limited, and the interference with other mechanisms caused by too large stroke of the eighth bracket 54 is effectively avoided.
An eighth driving mechanism 55 is arranged on the eighth bracket 54, and the eighth driving mechanism 55 is fixedly connected to the first connecting block 541; the shift lever assembly 56 is rotatably connected to the eighth bracket 54; the fifth slide rail 57 is disposed on the eighth support 54, the fifth slide rail 57 is parallel to the fourth slide rail 53, the fifth slide rail 57 is connected to a ninth support 58, and the ninth support 58 is further connected to the eighth driving mechanism 55, i.e. the eighth driving mechanism 55 can drive the ninth support 58 to reciprocate along the fifth slide rail 57. In this embodiment, the eighth driving mechanism 55 is driven by a cylinder, a piston end of the cylinder is connected to the ninth bracket 58, and the ninth bracket 58 moves by extension and contraction of the cylinder.
A first shifting block 581 with a circular section is rotatably connected to the ninth support 58. When the first shifting block 581 reciprocates along with the ninth bracket 58, the shifting rod assembly 56 can be shifted to rotate along the rotary connection part of the first shifting block 581 and the eighth bracket 54; one end of the shift lever assembly 56, which is far away from the first shift block 581, is connected with the saw blade in a matching manner. In this embodiment, the shift lever assembly 56 includes a first shift lever 561 and a second shift lever 562 rotatably connected to the eighth bracket 54, and the second shift lever 562 rotates with the first shift lever 561. A second guide surface 5611 is arranged on the inner side of one end, away from the second shift lever 562, of the first shift lever 561, and the second guide surface 5611 is in fit connection with the first shift block 581, that is, when the ninth bracket 58 moves along the fifth slide rail 57, the first shift block 581 slides on the second guide surface 5611, so that the first shift lever 561 is shifted to rotate along the rotational connection between the first shift lever 561 and the eighth bracket 54, and the second shift lever 562 rotates along with the first shift lever 561; a reset rod 5612 is laterally extended from a connection portion of the first shift lever 561 and the second shift lever 562, a compression spring 5613 is connected to the reset rod 5612, and the other end of the compression spring 5613 is connected to the eighth bracket 54, and is used for resetting the shift lever assembly 56. One end of the second shifting lever 562, which is far away from the first shifting lever 561, is provided with a shifting needle 5621, and the shifting needle 5621 is matched with the saw blade tooth groove, that is, when the first shifting lever 561 rotates along the rotational connection part of the second shifting lever 562 and the eighth bracket 54, the shifting needle 5621 can move into the tooth groove of the saw blade.
As shown in fig. 12, the tooth shifting module 5 further includes a tooth shifting stroke component 59 disposed on the fourth support 41, the tooth shifting stroke component 59 has at least one first guide surface 591, in this embodiment, the section of the tooth shifting stroke component 59 is a circular triangle, so there are three first guide surfaces 591, but the tooth shifting stroke component 59 may also be designed into other shapes, for example, the section is a circular quadrangle, and 2 to 4 first guide surfaces may be disposed; a pentagonal arc, 2 to 5 first guide surfaces may be provided, etc. The plurality of first guide surfaces 591 are each irregularly curved in cross-section, and the curved shape is set according to the specification of the circular saw blade. The position of the shifting tooth stroke component 59 mounted on the fourth support 41 can also be adjusted, specifically, as in this embodiment, the shifting tooth stroke component 59 is provided with a pin hole 592 and an arc hole 593, the pin hole 592 connects the shifting tooth stroke component 59 to the fourth support 41 in a rotating manner through a pin, the arc hole 593 connects the shifting tooth stroke component 59 to the fourth support 41 through a bolt, during position adjustment, the bolt is loosened, the shifting tooth stroke component 59 rotates to a proper position along the pin hole 592, and then the bolt is tightened. The first guiding surface 591 is connected with the guiding wheel 543 arranged on the eighth frame 54, and the guiding wheel 543 is always in close contact with the first guiding surface 591, and the guiding wheel 543 can roll on the first guiding surface 591.
In this embodiment, the working process of the gear shifting module 5 is as follows: firstly, when the seventh driving mechanism 52 drives the eighth support 54 to move to the downstream end along the fourth sliding rail 53, the guide wheel 543 rolls along the first guide surface 591, so that the tooth shifting module 5 rotates along the hinged position of the tooth shifting module and the fourth support 41, and at this time, the shifting needle 5621 moves to the tooth profile of the saw blade; secondly, the eighth driving mechanism 55 drives the ninth bracket 58 to move along the fifth sliding rail 57 to the upstream end, and the first poking block 581 rolls along the second guide surface 5611, so that the poking needle 5621 enters the tooth slot of the saw blade through the first poking rod 561 and the second poking rod 562; thirdly, the seventh driving mechanism 52 drives the eighth support 54 to move towards the upward end along the fourth slide rail 53, and the poking needle 5621 drives the saw blade to rotate to the next tooth-shaped processing station; finally, the eighth drive mechanism 55 drives the ninth carriage 58 to move along the fifth slide 57 toward the downstream end so that the setting finger 5621 is moved away from the gullet of the blade. It should be noted that, in actual operation, the above steps are not necessarily performed step by step, and the seventh driving mechanism 52 and the eighth driving mechanism 55 may be operated simultaneously or at a part of the operation time, specifically determined according to the specification of the saw blade and/or the shape and size of the first guiding surface 591 and/or the second guiding surface 5611.
In addition, the first guide surface 591 is always in contact with the guide wheel 543, and may be implemented by arranging a convolution spring at the rotation connection position of the seventh bracket 51 and the fourth bracket 41 or arranging a return spring between the seventh bracket 51 and the fourth bracket 41; besides the design of the compression spring 5613 in this embodiment, a convolution spring may be disposed at the rotational connection between the shift lever assembly 56 and the eighth bracket 54, for example, to maintain the contact between the second guide surface 5611 and the first shift block 581 during operation or to reset the shift lever assembly 56 after the completion of the shifting operation.
As shown in fig. 13, the compensation module 6:
it cooperates with grinding adjustment module 2, can carry out the turning to discharge electrode 33, prevents that the cutting face of discharge electrode 33 from excessively wearing and tearing. The compensation module 6 comprises a tenth support 61 arranged on the substrate 1, a turning tool 62 is arranged on the tenth support 61, and the turning tool 62 is connected with the discharge electrode 33 in a matching manner. When the discharge electrode 33 is excessively worn, the grinding adjusting module 2 drives the grinding assembly 3 to move downwards, so that the discharge electrode 33 is in contact with the turning tool 62 to turn the worn surface. And during the tooth profile regrinding process after each turning, the X-axis adjusting assembly 21 drives the grinding assembly 3 to grind the cutting feed by an amount equal to or slightly larger than the turning amount due to abrasion. The discharge electrode 33 becomes thin after many times of turning, and cannot be ground and can be replaced. In this process, the degree of wear of the discharge electrode 33 can be determined based on the time during which the discharge electrode 33 is continuously operated or the number of machining teeth.
As shown in fig. 14, the blade clamping module 7:
the saw blade clamp has the function of clamping the saw blade in the machining process and preventing shaking. The saw blade clamping module 7 comprises an eleventh bracket 71 arranged on the fourth bracket 41, a clamping jaw 72 is arranged on the eleventh bracket 71, and the clamping jaws 72 are arranged on two sides of the saw blade and can move oppositely to clamp the saw blade; a negative electrode (not shown) is also provided on the jaw 72. Namely, when the discharge electrode 33 processes the saw blade tooth shape, the clamping jaw 72 is in a state of clamping the saw blade; when the gear-shifting die set 5 works, the clamping jaw 72 is in a state of loosening the saw blade.
In this embodiment, the automatic circular saw blade grinding apparatus comprises the following steps: selecting a proper first guide surface 591 to be matched with the guide wheel 543 according to the specification of the circular saw blade, and fixedly mounting the corresponding tooth shifting stroke assembly 59 on the fourth bracket 41; the circular saw blade is rotatably connected and installed on the sixth support 423 through an installation hole 4231, and the sixth support 423 and the circular saw blade are driven to move by the sixth driving mechanism 422 until the tooth-shaped tip of the circular saw blade is coincided with the axis of the positioning needle 441; the fifth driving mechanism 432 drives the fifth bracket 431 to rotate to drive the fourth bracket 41 to rotate, namely, the adjustment of the tooth-shaped back angle of the circular saw blade is realized, the adjustment angle is monitored in real time through an encoder 4316 according to a set value, and the tooth-shaped tip of the circular saw blade is always in coincidence with the axis of the positioning needle 441 because the rotating axis of the back angle adjustment is coincident with the positioning needle 441; the saw blade clamping module 7 is started, and the saw blade is clamped by the clamping jaw 72; the grinding assembly 3 is started, and the discharge electrode 33 is driven to rotate by the fourth driving mechanism 32; the grinding adjusting module 2 is started, feeding is carried out through the X-axis adjusting module 21, the discharge electrode 33 is close to the tooth shape of the circular saw blade and carries out discharge grinding, the Z-axis adjusting module 22 always drives the grinding module 3 to reciprocate up and down in the grinding process, and the general grinding stroke (the feeding amount of the X-axis adjusting module 21 driving the grinding module 3) is up and down to the tooth-shaped tip of the circular saw blade, namely the axis of the positioning needle 441; when the tooth-shaped side edge of the circular saw blade needs to be ground, the R-axis adjusting component 23 starts to drive the grinding component 3 to horizontally rotate and is matched with the X-axis adjusting component 21 and the Z-axis adjusting component 22 for grinding; after one tooth type is ground, the clamping jaw 72 is loosened, the tooth shifting module 5 starts the tooth shifting operation of the circular saw blade, so that the circular saw blade rotates to the next processing tooth position, the clamping jaw 72 clamps again, and the grinding assembly 3 carries out grinding processing; repeating the above processes until all the tooth shapes are processed. When the grinding assembly 3 is continuously machined for a certain time or until a certain number of tooth profiles are machined, the Z-axis adjusting assembly 22 drives the grinding assembly 3 downwards, and the worn surface of the discharge electrode 33 is turned through the turning tool 62.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. An automatic grinding device for a circular saw blade, comprising:
a substrate;
the grinding assembly is provided with a discharge electrode, and the discharge electrode discharges electricity to grind the saw blade;
the saw blade adjusting module comprises a fourth bracket which is rotationally connected with the substrate; the radial adjusting assembly is arranged on the fourth support and used for mounting the saw blade, and the rear angle adjusting module is connected with the fourth support, so that the adjustment of the relative position of the saw blade and the grinding assembly and the machining angle of the rear teeth of the saw blade is realized, and the grinding assembly is convenient to machine;
the tooth shifting module is rotationally connected with the fourth bracket and used for shifting the saw blade to rotate to the next tooth machining station;
the grinding adjusting module comprises an X-axis adjusting component arranged on the substrate; the Z-axis adjusting component is arranged on the X-axis adjusting component; the R-axis adjusting assembly is arranged on the Z-axis adjusting assembly, realizes the X-axis direction, the Z-axis direction and the horizontal rotation adjustment of the grinding assembly, and is matched with the saw blade adjusting module to realize the grinding processing of the grinding assembly on different angles and feeding of the saw blade;
the compensation module is matched with the grinding adjustment module to prevent the cutting surface of the discharge electrode from being excessively worn;
the saw blade clamping module clamps the saw blade in the machining process to prevent shaking;
the saw blade adjusting module is provided with a positioning needle, and the operation processes of the rear angle adjusting module, the radial adjusting assembly, the gear shifting module and the grinding adjusting module of the saw blade all use the positioning needle as a reference.
2. The automatic circular saw blade grinding apparatus as claimed in claim 1, wherein: the X-axis adjusting assembly comprises a first support, and the first support is connected to the base plate through a first sliding rail arranged horizontally; the first driving mechanism is fixedly arranged on the substrate and can drive the first support to reciprocate along the first sliding rail;
the Z-axis adjusting assembly comprises a second support, and the second support is connected to the first support through a second sliding rail which is vertically arranged; the second driving mechanism is fixedly arranged on the first support and can drive the second support to reciprocate along the second sliding rail;
the R-axis adjusting assembly comprises a third support fixedly connected with the second support and an R axis arranged on the third support, and the R axis is vertically arranged; and the third driving mechanism is arranged on the second bracket and can drive the R shaft to rotate along the axial direction of the vertical direction.
3. The automatic circular saw blade grinding apparatus as claimed in claim 2, wherein: the grinding assembly comprises a grinding head and a fourth driving mechanism, the discharge electrode is annular and is arranged in the grinding head, and the grinding head is connected with the R shaft and can rotate along with the R shaft; the fourth driving mechanism is connected with the grinding head and can drive the discharge electrode to rotate.
4. The automatic circular saw blade grinding apparatus as claimed in claim 1, wherein: the rear angle adjusting module comprises a fifth bracket which is rotationally connected with the substrate; a fifth driving mechanism for driving the fifth bracket to rotate; the fifth support and the fourth support are respectively arranged on two sides of the base plate and are connected through a first transmission shaft penetrating through the base plate, and the fourth support can rotate along with the fifth support; the positioning pin is coaxial with the first transmission shaft, is arranged on the fourth support and is matched with the tooth-shaped tip of the saw blade.
5. The automatic circular saw blade grinding apparatus as claimed in claim 4, wherein: the radial adjusting assembly comprises a third sliding rail and a sixth driving mechanism which are fixedly arranged on the fourth support; and the sixth bracket is arranged on the third sliding rail and can reciprocate along the third sliding rail under the driving of a sixth driving mechanism.
6. The automatic circular saw blade grinding apparatus as claimed in claim 1, wherein: the shifting gear module comprises a seventh bracket which is rotationally connected with the fourth bracket; the seventh support is provided with a seventh driving mechanism and an eighth support connected through a fourth sliding rail, and the seventh driving mechanism can drive the eighth support to reciprocate on the fourth sliding rail;
the eighth support is provided with an eighth driving mechanism, a deflector rod assembly in rotary connection and a ninth support connected through a fifth sliding rail, the eighth driving mechanism can drive the ninth support to reciprocate along the fifth sliding rail, and the fifth sliding rail and the fourth sliding rail are arranged in parallel;
the first shifting block with a circular section is rotatably connected to the ninth bracket, and when the first shifting block reciprocates along with the ninth bracket, the first shifting block can shift the shifting rod assembly to rotate along the rotary connection position of the shifting rod assembly and the eighth bracket; one end of the shifting lever assembly, which is far away from the first shifting block, is connected with the saw blade in a matching way.
7. The automatic circular saw blade grinding apparatus as claimed in claim 6, wherein: the gear shifting module further comprises a gear shifting stroke assembly arranged on the fourth support, the gear shifting stroke assembly is provided with at least one first guide surface, the first guide surface is connected with a guide wheel arranged on the eighth support, namely when the eighth support moves along the fourth slide rail, the guide wheel moves along the guide surface, and the gear shifting module rotates along the hinged position of the eighth support and the fourth support.
8. The automatic circular saw blade grinding apparatus as claimed in claim 1, wherein: the compensation module is including setting up the tenth support on the base plate, be provided with the lathe tool on the tenth support, the lathe tool is connected with the cooperation of discharge electrode.
9. The automatic circular saw blade grinding device as claimed in claim 1, wherein said saw blade clamping module includes an eleventh bracket disposed on a fourth bracket, said eleventh bracket having a clamping jaw disposed on both sides of the saw blade for clamping the saw blade by moving in opposite directions; and the clamping jaw is also provided with a negative electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210925431.3A CN114985840B (en) | 2022-08-03 | 2022-08-03 | Automatic grinding device for circular saw blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210925431.3A CN114985840B (en) | 2022-08-03 | 2022-08-03 | Automatic grinding device for circular saw blade |
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| CN114985840A true CN114985840A (en) | 2022-09-02 |
| CN114985840B CN114985840B (en) | 2022-10-25 |
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| CN109202177A (en) * | 2017-07-04 | 2019-01-15 | 东莞市领邦机械科技有限公司 | A kind of full-automatic alloy saw blade mill top flour milling machine |
| CN208713015U (en) * | 2018-08-30 | 2019-04-09 | 浙江百博机械科技有限公司 | Saw blade flank numerical control electrical discharge machine |
| CN112439947A (en) * | 2019-08-29 | 2021-03-05 | 临沂和通精密机械设备有限公司 | Universal tooth grinding machine for circular saw blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6329624B1 (en) * | 1997-10-01 | 2001-12-11 | Vollmer Werke Maschinenfabrik Gmbh | Measuring device on a machine for machining workpieces with cutting teeth, especially saw blades |
| CN2659612Y (en) * | 2003-11-28 | 2004-12-01 | 吴树辉 | Automatic toothing machine for alloyed steel circular saw web |
| CN103692018A (en) * | 2013-11-29 | 2014-04-02 | 东莞市俊知自动机械有限公司 | Bilateral discharge machine |
| CN205927349U (en) * | 2016-06-30 | 2017-02-08 | 台州美日机床有限公司 | Saw blade gear grinding machines |
| CN109202177A (en) * | 2017-07-04 | 2019-01-15 | 东莞市领邦机械科技有限公司 | A kind of full-automatic alloy saw blade mill top flour milling machine |
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| CN208304037U (en) * | 2018-05-31 | 2019-01-01 | 严洪 | Diamond disc gear grinding machines with top to bottom, left and right, front and rear three-shaft linkage |
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| CN112439947A (en) * | 2019-08-29 | 2021-03-05 | 临沂和通精密机械设备有限公司 | Universal tooth grinding machine for circular saw blade |
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|---|---|
| CN114985840B (en) | 2022-10-25 |
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