CN111604724A

CN111604724A - Crystal glass rod grinding machine and feeding device thereof

Info

Publication number: CN111604724A
Application number: CN202010494695.9A
Authority: CN
Inventors: 徐建方; 姚雨轩; 朱敏杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-09-01
Also published as: CN111546147A; CN110385608B; CN110385608A

Abstract

The invention relates to crystal glass grinding equipment. A crystal glass rod grinding machine comprises a frame, and a limiting device, a feeding device, a grinding device and a discharging device which are arranged on the frame; the limiting device is used for positioning the crystal glass rod to be processed; the grinding device comprises an upper grinding mechanism and a lower grinding mechanism which have the same structure, and the upper grinding mechanism and the lower grinding mechanism jointly act to grind the crystal glass rod on the limiting device; the blanking device is used for conveying and collecting the ground crystal glass rods. The crystal glass rod grinding machine has the advantages of automatic feeding and discharging, and high machining efficiency and grinding precision.

Description

Crystal glass rod grinding machine and feeding device thereof

The invention is a divisional application, and the original application number is: 201910693129.8, the filing date is: 2019-07-30, the patent name is: a crystal glass rod grinding machine.

Technical Field

The invention relates to crystal glass grinding equipment.

Technical Field

A grinding machine is a machine tool that grinds the surface of a workpiece using a grinding tool. The common grinding machine is generally a one-machine-by-one working mode. The traditional shaft rod grinding machine processing mode is as follows: the material loading is that one end of the shaft rod is fixed at least, then the shaft rod is ground through the grinding mechanism, and the shaft rod is taken down after the grinding is finished.

Due to the particularity of the crystal glass rod, the crystal glass rod is easy to damage during the clamping operation of the end part, and the clamping part is generally cut off subsequently, so that the crystal glass rod is not only relatively wasted, but also complicated to operate. The prior crystal glass rod grinding processing has the following problems: 1. the end clamping operation needs a single clamping operation, so that the efficiency is low and the material waste is large; 2. external rotating force is additionally added to realize the rotating action of the crystal glass rod; 4. different clamps are needed for crystal glass rods with different thicknesses, manual operation is adopted for feeding and discharging the crystal glass rods, and the production efficiency is low; and 5. the grinding operation of a single grinding wheel counteracts the component of the cutting force in the vertical axial direction, and the grinding precision is influenced.

Invention container

In order to solve the problems existing in the grinding of the crystal glass rod, the invention aims to provide a crystal glass rod grinding machine which can automatically feed and discharge the crystal glass rod and has high processing efficiency and grinding precision.

The technical scheme of this patent is: a crystal glass rod grinding machine comprises a frame, and a limiting device, a feeding device, a grinding device and a discharging device which are arranged on the frame; the limiting device is arranged in the middle of the rack and used for positioning the crystal glass rod to be processed; the feeding device is arranged at one end of the limiting device; the grinding device comprises an upper grinding mechanism and a lower grinding mechanism which have the same structure, the upper grinding mechanism and the lower grinding mechanism are respectively positioned at the upper side and the lower side of the limiting device, and the upper grinding mechanism and the lower grinding mechanism are respectively arranged on the rack through a group of sliding adjusting modules; the upper grinding mechanism and the lower grinding mechanism jointly act to grind the crystal glass rod on the limiting device; the blanking device is used for conveying and collecting the ground crystal glass rods; the feeding device, the limiting device and the discharging device are positioned on the same straight line.

Preferably, the sliding adjusting module comprises a first motor, a screw rod, a sliding plate, a second motor, a lifting cylinder and a fixing plate; the upper part and the lower part of the rear part of the sliding plate are respectively provided with a transverse guide rail, the middle of the rear part of the sliding plate is provided with a transverse lead screw slide block, and the front part of the sliding plate is provided with two vertical guide rails; the sliding plate is connected with the rack through the transverse guide rail; the first motor is arranged on the right side of the sliding plate, and the sliding plate is connected with the rack; the screw rod is positioned at the rear part of the sliding plate, the right end of the screw rod is connected with the first motor, and the left end of the screw rod is connected with the screw rod sliding block; the second motor is arranged at the top of the sliding plate; the upper part of the lifting cylinder is connected with a second motor, and the left side and the right side of the lifting cylinder are connected with the vertical guide rail in a matching way; the fixing plate is provided with a through hole in the vertical direction and is arranged at the lower part of the sliding plate.

Preferably, the limiting device comprises four clamping plates, a limiting plate, two V-shaped adjusting blocks, four adjusting bolts, two pin seats, two springs and four supporting pins; the rear part of the clamping plate is transversely provided with a pin hole, the rear part of the clamping plate is longitudinally provided with a through hole, the top of the clamping plate is transversely provided with a through groove, and the front part of the clamping plate is provided with a threaded hole which directly reaches the through groove; the clamping plate is connected with the pin seat through a pin hole at the rear part; the pin seat is connected to the frame; the left splint and the right splint are respectively arranged symmetrically up and down, and a gap is arranged between the left splint and the right splint; the limiting plates are arranged in the middle of the upper clamping plate and the lower clamping plate and are transversely arranged; the front part of the limiting plate is provided with a V-shaped groove, and the left end and the right end of the rear part of the limiting plate are respectively connected with a V-shaped adjusting block; the upper end and the lower end of the V-shaped adjusting block respectively penetrate through the through groove; the adjusting bolt penetrates through the threaded hole to be connected with the V-shaped adjusting block; the supporting pin passes through a through hole at the rear part of the clamping plate and is connected with a rotating pin on the pin seat; the upper and lower sides of the spring are respectively connected with the supporting pin.

Preferably, the feeding device comprises a first feeding motor, a feeding rod, a storage frame, a feeding rack, a second feeding motor, a toothed belt and a supporting rod; the first feeding motor is arranged on the feeding rack; the feeding rod is a stepped shaft, three transverse grooves are axially and averagely formed in the right end of the feeding rod, and the transverse grooves are used for placing a crystal glass rod to be processed; the feeding rod is transversely arranged, the left end of the feeding rod is connected with the first feeding motor, and the right end of the feeding rod is connected with the shaft sleeve arranged on the feeding rack; the material storage frame is arranged on the feeding rack and positioned in front of the feeding rod; the second feeding motor is arranged on the supporting rod; the supporting rod is arranged on the feeding rack; the supporting rod is transversely arranged and is positioned at the rear part of the feeding rod; the toothed belt is wrapped on the supporting rod, and a driving shaft and a driven shaft are connected to two ends of the toothed belt; the driving shaft is connected with a second feeding motor; the driven shaft is installed on the feeding rack.

Preferably, the upper grinding mechanism comprises an upper belt pulley, an upper stepped shaft, an upper grinding wheel and an upper bracket; the upper stepped shaft is transversely arranged; the right end of the upper stepped shaft is connected with the upper belt pulley, and the left end of the upper stepped shaft is in clearance fit connection with a shaft sleeve outside the upper stepped shaft; the shaft sleeve is connected with the upper bracket in an interference fit manner; the upper grinding wheel is connected to the upper stepped shaft; the upper bracket is connected to the lifting cylinder.

Preferably, an emergency brake handle is mounted on the side of the upper bracket, and emergency braking can be realized by rotating the emergency brake handle.

Preferably, the lower grinding mechanism is further provided with a precision adjusting mechanism.

Preferably, the precision adjusting mechanism comprises a transverse gear dial mounted on the front part of the second bracket; by rotating the transverse gear dial, the relative positions of the lower grinding wheel and the second bracket in the longitudinal direction are adjusted, namely the longitudinal machining allowance is adjusted.

Preferably, the precision adjusting mechanism further comprises an adjusting handle mounted at the lower part of the second bracket, and the adjusting handle is used for adjusting the relative position of the lower grinding wheel and the second bracket in the vertical direction, namely, for adjusting the machining allowance in the vertical direction.

Preferably, the blanking device comprises a blanking motor, a belt blanking frame and a supporting rod; the support rod is transversely arranged, the right end of the support rod is connected with a blanking motor through a support plate, the middle part of the support rod is connected with a blanking frame, and the left part of the support rod is fixedly connected with the rack; the right end of the belt is connected with a driving shaft, and the left end of the belt is connected with a driven shaft; the driving shaft is connected with a discharging motor; the driven shaft is connected with the support rod through the support plate; the blanking frame is connected to the front part of the support rod, and the top of the blanking frame is provided with a through hole to enable the processed crystal glass rod raw material to fall down.

The technical effect of this patent is: through loading attachment, stop device and the unloader that is in on the collinear cooperation with grinding device, realize the automatic feeding and the unloading of crystal glass stick, through the symmetrical arrangement of upper and lower emery wheel realize the accurate quick grinding to crystal glass stick to can automatic feed, need not to add more external power source, and can adapt to the crystal glass stick raw materials of various sizes, application scope is wide, and the practicality is strong. To sum up, the crystal glass rod grinding machine of this patent advantage is unloading in the automation, and machining efficiency and grinding precision are high.

Drawings

FIG. 1 is a schematic view showing the structure of a crystal glass rod grinder according to the present invention.

FIG. 2 is a schematic view of an upper sliding module.

Fig. 3 is a schematic view of a limiting device.

Fig. 4 is a schematic view of a feeding device.

Fig. 5 is a schematic view of a grinding apparatus.

Fig. 6 is a schematic view of a blanking device.

Detailed description of the preferred embodiments

The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

As shown in figure 1, the crystal glass rod grinding machine comprises a frame 1, a limiting device 2, a feeding device 3, a grinding device 4 and a discharging device 5. The limiting device 2 is installed in the middle of the rack 1, and the limiting device 2 can position the crystal glass rod to be processed. The feeding device 3 is arranged at the left end of the limiting device 2, and the feeding device 3 is arranged on the rack 1. The grinding device 4 includes an upper grinding mechanism 41 and a lower grinding mechanism 42 having the same structure. The upper grinding mechanism 41 and the lower grinding mechanism 42 are respectively arranged at the upper side and the lower side of the limiting device 2. The upper grinding mechanism 41 is mounted on the frame 1 through the slide adjusting module 11. The lower grinding mechanism 42 is mounted on the frame 1 by a lower slide adjusting module. The upper grinding mechanism 41 and the lower grinding mechanism 42 work together to grind the crystal glass rod on the limiting device. The blanking device 5 is connected with the frame 1 at the left side of the limiting device 2, and the blanking device 5 can convey and collect the crystal glass rods which are subjected to grinding processing. The feeding device 3, the limiting device 2 and the discharging device 5 can ensure that the crystal glass rods are on the same axis in the conveying and grinding processes of the crystal glass rods.

As shown in fig. 2, the sliding adjustment module 11 includes a first motor 111, a lead screw 112, a sliding plate 113, a second motor 114, a lifting cylinder 115, and a fixing plate 116. The rear portion of the sliding plate 113 is provided with transverse guide rails 1131 at the upper and lower portions, the middle of the rear portion of the sliding plate 113 is provided with a transverse screw slider 1132, and the front portion of the sliding plate 113 is provided with two vertical guide rails 1133. The slide plate 113 is connected to the frame 1 by the cross rail 1131. The first motor 111 is arranged at the right side of the sliding plate 113, and the sliding plate 113 is connected with the frame 1. The lead screw 112 is located at the rear part of the sliding plate 113, the right end of the lead screw 112 is connected with the first motor 111, and the left end of the lead screw 112 is connected with the lead screw slider 1132. The second motor 114 is mounted on top of the sled 113. The upper part of the lifting cylinder 115 is connected with the second motor 114, and the left and right sides of the lifting cylinder 115 are connected with the vertical guide rail 1133 in a matching way. The fixing plate 116 is installed at the lower portion of the sliding plate 113.

During operation, the first motor 111 drives the screw rod 112 to rotate, the screw rod 112 is matched with the screw rod slider 1132 to drive the sliding plate to move left and right, and the transverse guide rail 1131 and the sliding groove on the rack and the screw rod 112 act together to realize the left and right movement of the sliding plate on the rack 1. The second motor 114 drives the cylinder 115, and the two sides of the cylinder 115 are matched with the guide rail 1133, so that the cylinder 115 moves up and down in front of the slide plate. The bottom of the air cylinder 115 can reach any point in the X-O-Z plane through the cooperation of the first motor 111 and the second motor 114. The advantage is that this cylinder 115 moves steadily, makes the stable feeding of upper grinding mechanism 41 of settling at the cylinder 115 bottom, and upper grinding mechanism 41 can move about to realize the grinding function of local shaft section.

As shown in fig. 3, the limiting device 2 includes four clamping plates 21, a limiting plate 22, two V-shaped adjusting blocks 23, four adjusting bolts 24, two pin bosses 25, two springs 26 and four supporting pins. The rear part of the clamping plate 21 is transversely provided with a pin hole 211, the rear part of the clamping plate 21 is longitudinally provided with a through hole 212, the top part of the clamping plate 21 is transversely provided with a through groove 213, and the front part of the clamping plate 21 is provided with a threaded hole 214 reaching the through groove. The clamping plate 21 is connected with the pin seat 25 through the pin hole 211 at the rear. The pin seat 25 is connected to the frame 1. The left clamping plate 21 and the right clamping plate 21 are respectively arranged symmetrically up and down, and a gap is arranged in the middle of the left clamping plate 21 and the right clamping plate 21. The limiting plate 22 is arranged in the middle of the upper clamping plate 21 and the lower clamping plate 21, and the limiting plate 22 is transversely arranged. The front part of the limiting plate 22 is provided with a V-shaped transverse groove, and the left end and the right end of the rear part of the limiting plate 22 are respectively connected with a V-shaped adjusting block 23. The upper and lower ends of the V-shaped adjusting block 23 pass through the through groove 213. The adjusting bolt 24 passes through the threaded hole 214 to be connected with the V-shaped adjusting block. The support pin passes through a through hole 212 at the rear of the clamping plate 21 and is connected with a rotating pin on the pin seat 25. The upper and lower sides of the spring 26 are connected to the support pins, respectively.

When the machine tool works, the adjusting bolt 24 is rotated according to the size of the shaft of the machining material, so that the position of the limiting plate 22 is adjusted, the position of the limiting plate 22 is fixed, and the limiting plate 22 is used for limiting the moving freedom degree in the Y-axis direction during machining. The clamping plate 21 rotates around the pin hole 211 at the rear part, so that the distance between the upper clamping plate and the lower clamping plate can be properly changed when the shaft diameter of the crystal glass rod is changed, and the crystal glass rod is suitable for crystal glass rods with different shaft diameters. The front part of the limiting plate 22 is provided with a transverse V-shaped groove to prevent the crystal glass rods from falling off during transportation. The support pins engage the springs 26 to prevent the upper and lower jaws from closing under the support of the amorphous glass rod, thereby causing the process to stop. The four clamping plates 21 and the limiting plate 22 are matched to effectively limit the position of the crystal glass rod.

The advantage is that this stop device can adjust limiting plate 22's initial position according to the crystal glass stick of difference for adapt to the crystal glass stick of different shaft diameters, and add the definite position of guaranteeing the crystal glass stick man-hour, and processing can go on in succession, realizes automaticly.

As shown in fig. 4, the feeding device 3 includes a first feeding motor 31, a feeding rod 32, a storage frame 33, a feeding rack 34, a second feeding motor 35, a toothed belt 36 and a supporting rod 37. The first feeding motor 31 is arranged on the feeding frame 34. The feeding rod 32 is a stepped shaft, three transverse grooves 321 are axially and averagely formed in the right end, and a crystal glass rod to be processed is placed in each transverse groove 321. The feeding rod is transversely 32 placed, the left end of the feeding rod 32 is connected with a first feeding motor, and the right end of the feeding rod 32 is connected with a shaft sleeve arranged on the feeding rack 34. The material storage frame 33 is arranged on the material loading frame 34 and is positioned in front of the material loading rod 32. The second feeding motor 35 is arranged on the supporting rod 37. The support rod 37 is arranged on the feeding rack 34. The supporting rod 37 is transversely arranged, and the supporting rod 37 is positioned at the rear part of the feeding rod. The toothed belt 36 is wrapped on the support rod 37, and a driving shaft 361 and a driven shaft 362 are connected with two ends of the toothed belt 36. The driving shaft 361 is connected with the second feeding motor 35. The driven shaft is mounted on the feeding frame 34.

During operation, the crystal glass rod in the storage frame 33 falls into the transverse groove of the front part 32 of the feeding rod under the action of gravity, at the moment, the feeding rod 32 is driven by the first feeding motor 31 to place the crystal glass rod on the toothed belt 36 at the rear part of the feeding rod 32, and then the first feeding motor 31 stops. At this time, the second feeding motor 35 is started and drives the toothed belt 36 to transport the crystal glass rod, and after the crystal glass rod is transported out of the transverse groove of the feeding rod 32, the second feeding motor 35 is stopped, the first feeding motor 31 is restarted, and the next cycle is started.

The feeding device has the advantages that the automatic feeding of the crystal glass rod can be realized, and the feeding is single without clamping the shell. The whole matching is tight, the feeding is reliable and stable, and the feeding well is ordered.

As shown in fig. 5, the upper grinding mechanism 41 includes a first pulley 411, an upper stepped shaft 412, an upper grinding wheel 413, and an upper bracket 414. The upper stepped shaft is transversely arranged. The right end of the upper stepped shaft 412 is connected with the first belt pulley 411, and the left end is connected with the first shaft sleeve outside the upper stepped shaft 412 in a clearance fit manner. The first bushing is connected to the upper bracket 414 in an interference fit manner. The upper grinding wheel 413 is connected to the upper stepped shaft 412. The upper bracket 414 is arranged at the lower part of the upper lifting cylinder 115.

The connection relationship and the position relationship of the components of the lower grinding mechanism 42 and the upper grinding mechanism are respectively corresponding and identical. The lower grinding mechanism 42 includes a second pulley 421, a second stepped shaft 422, a lower grinding wheel 423, and a second bracket 424. The lower grinding mechanism 42 is also provided with a precision adjusting mechanism which comprises a transverse gear dial 4241 arranged at the front part of the second bracket 424; by rotating the traverse gear dial 4241, the relative positions of the lower grinding wheel 423 and the second carriage 424 in the longitudinal direction are adjusted, i.e., for adjusting the longitudinal allowance. An adjustment handle 4242 is installed at a lower portion of the second bracket 424, and is used to adjust a relative position of the lower grinding wheel 423 and the second bracket 424 in a vertical direction, that is, to adjust a machining allowance in the vertical direction.

During operation, the first belt pulley 411 is driven to rotate by an external power source, the belt pulley 411 drives the upper grinding wheel 413 to rotate clockwise through the upper stepped shaft 412, the transmission mode of the lower grinding wheel is the same as that of the upper grinding wheel, the lower grinding wheel 423 rotates anticlockwise, is synchronously close to the crystal glass rod, and carries out a grinding process on the crystal glass rod together. Because the upper grinding wheel and the lower grinding wheel are symmetrically arranged, the component force of the cutting force in the vertical direction is counteracted, the component force of the cutting force in the longitudinal direction is in the Y-axis negative direction, and the limiting plate 22 limits the moving freedom degree of the Y axis, so that the crystal glass rod can rotate in the anticlockwise axial direction during processing.

The grinding device has the advantages that the two grinding wheels are used for grinding together, and the efficiency is high. And because the vertical component force of the cutting force is offset, the crystal glass rod can be prevented from deforming, thereby improving the processing precision and better protecting the damage of the bearing. Because the crystal glass rod rotates anticlockwise, the whole outer surface can be ground, external power does not need to be added additionally to enable the crystal glass rod to rotate, and the precision is guaranteed while the structure is simple.

As shown in fig. 6, the blanking device 5 includes a blanking motor 51, a belt 52, a blanking frame 53 and a support rod 54. The support rod 54 is transversely arranged, the right end of the support rod 54 is connected with the blanking motor 51 through a support plate, the middle part of the support rod 54 is connected with the blanking frame 53, and the left part of the support rod 54 is fixedly connected with the frame 1. The belt 52 has a right end connected to the driving shaft 521 and a left end connected to the driven shaft 522. The driving shaft 521 is connected with the blanking motor 51. The driven shaft 522 is connected with the support rod 54 through a support plate. The blanking frame 53 is arranged at the front part of the support rod 54, and a through hole is arranged at the top part.

When the blanking machine works, the blanking motor 51 drives the belt 52 to move through the driving shaft 521. When grinding device 4 resets, when stopping the grinding, unloading motor 51 starts, and drive belt 52 motion, belt 52 carries the crystal glass stick of a processing completion to unloading frame 53 top through the friction mode, under the effect of gravity, the crystal glass stick falls into the unloading frame, then unloading motor 51 stops, after that under loading attachment 3's promotion, the crystal glass stick of processing completion can be pushed away belt 52 on stop device 2, because belt 52 motionless can produce frictional force this moment, through frictional force and loading attachment 3's motive force, fix the crystal glass stick of waiting to process in the middle of stop device 2. Until the next grinding device 4 is reset, the next cycle of the conveying process is started again.

The blanking device has the advantages that automatic conveying and collection can be realized, and the degree of freedom of movement of the X axis of the crystal glass rod is limited under the combined action of friction and the feeding device 3. The conveying is stable, the well is orderly, the structure is simple, and the efficiency is high.

In summary, the automatic crystal glass rod grinding machine integrates automatic feeding, automatic grinding and automatic discharging, crystal glass rods on the feeding device 3, the limiting device 2 and the discharging device 5 are positioned on the same straight line, when the feeding device 3 and the discharging device 5 stop moving, friction between the crystal glass rods and the belt 52 and friction between the crystal glass rods to be processed and the toothed belt 36 limit movement of the crystal glass rods, an upper grinding wheel and a lower grinding wheel limit rotation of an Y, Z shaft and movement of a Z shaft during processing, and movement of the Y shaft is limited through the limiting plate, so that only rotation of the X shaft is left. Through the symmetrical arrangement of the upper grinding wheel and the lower grinding wheel, the vertical component force for counteracting the cutting force is realized to protect the crystal glass rod, and the rotation of the crystal glass rod is realized through the speed difference of the upper grinding wheel and the lower grinding wheel, so that the automatic rotary feeding is realized. The common grinding action of the upper grinding wheel and the lower grinding wheel greatly improves the efficiency. The whole grinder has high efficiency and good grinding precision, can adapt to crystal glass rods with different thicknesses, and can randomly select the position to be processed.

Because the crystal glass rods 6 on the feeding device 3, the limiting device 2 and the discharging device 5 are on the same axis, under the pushing action of the feeding device 3 and the friction action of the crystal glass rods, the crystal glass rods to be processed and the processed crystal glass rods limit the freedom degree of movement of the crystal glass rods to be processed in the X direction. The feeding device 3 stops feeding, at this time, the upper grinding wheel 413 is started and rotates clockwise, the lower grinding wheel 423 is started and rotates anticlockwise, and under the action of the two groups of sliding adjusting modules, the lower grinding wheel moves to a neutral position between the left clamping plate and the right clamping plate simultaneously and is positioned at the upper side and the lower side of the crystal glass rod to be processed, so that the moving freedom degree and the Y, Z rotating freedom degree of the crystal glass rod to be processed in the Y-axis direction are limited. The limiting plate 22 limits the freedom of movement in the Y direction, thereby only the freedom of rotation of the X axis of the crystal glass rod to be processed is left. After that, grinding is started, and due to the limitation of all degrees of freedom, the machining precision is ensured as long as the distance between the upper grinding wheel and the lower grinding wheel is ensured. Because the rotating speed of the upper grinding wheel is greater than that of the lower grinding wheel and the X-axis rotational freedom degree is not limited, the crystal glass rod rotates anticlockwise, and the rotary feeding motion is completed. And after the grinding process is finished, the upper grinding wheel and the lower grinding wheel reset and stop. The blanking device 5 is started and stopped after blanking is finished. The loading device 3 is then activated, whereby the next cycle is started. The automatic feeding device is characterized in that the feeding device 3 is capable of automatically feeding materials and stable in feeding, the limiting device 2 and the grinding device 4 act together to limit each degree of freedom of the crystal glass rod, automatic rotary feeding is achieved while accuracy is guaranteed, external power sources are not required to be added, and automatic discharging and collection are achieved through the discharging device 5. By the symmetrical arrangement of the upper grinding wheel 413 and the lower grinding wheel 423, the component force of the cutting force in the vertical direction is counteracted in the grinding process, the crystal glass rod is prevented from jumping and deforming during processing, the grinding precision is ensured, and the grinding efficiency is improved by the common grinding of the upper grinding wheel and the lower grinding wheel.

Claims

1. A feeding device on a crystal glass rod grinding machine is characterized in that the feeding device (3) comprises a first feeding motor (31), a feeding rod (32), a storage frame (33), a feeding rack (34), a second feeding motor (35), a toothed belt (36) and a supporting rod (37); the first feeding motor (31) is arranged on the feeding rack (34); the feeding rod (32) is a stepped shaft, three transverse grooves (321) are axially and averagely formed in the right end, and the transverse grooves (321) are used for placing crystal glass rods to be processed; the feeding rod is transversely arranged (32), the left end of the feeding rod (32) is connected with a first feeding motor, and the right end of the feeding rod (32) is connected with a shaft sleeve (341) arranged on the feeding rack (34); the material storage frame (33) is arranged on the feeding rack (34) and is positioned at the front part of the feeding rod (32); the second feeding motor (35) is arranged on the supporting rod (37); the supporting rod (37) is arranged on the feeding frame (34); the supporting rod (37) is transversely arranged, and the supporting rod (37) is positioned at the rear part of the feeding rod; the toothed belt (36) is wrapped on the supporting rod (37), and a driving shaft (361) and a driven shaft (362) are connected to two ends of the toothed belt (36); the driving shaft (361) is connected with a second feeding motor (35); the driven shaft is arranged on the feeding rack (34).

2. A crystal glass rod grinding machine is characterized by comprising a frame (1) and a limiting device (2), a grinding device (4), a discharging device (5) and a feeding device (3) according to claim 1 on the frame; the limiting device (2) is used for positioning the crystal glass rod to be processed; the feeding device (3) is positioned at one end of the limiting device (2); the grinding device (4) comprises an upper grinding mechanism (41) and a lower grinding mechanism (42) which are identical in structure, the upper grinding mechanism (41) and the lower grinding mechanism (42) are respectively positioned on the upper side and the lower side of the limiting device (2), and the upper grinding mechanism (41) and the lower grinding mechanism (42) are respectively installed on the rack (1) through a group of sliding adjusting modules (11); the upper grinding mechanism (41) and the lower grinding mechanism (42) jointly act to grind the crystal glass rod on the limiting device; the blanking device (5) is used for conveying and collecting the ground crystal glass rods; the feeding device (3), the limiting device (2) and the discharging device (5) are positioned on the same straight line;

the blanking device (5) comprises a blanking motor (51), a belt (52), a blanking frame (53) and a support rod (54); the support rod (54) is transversely arranged, the right end of the support rod (54) is connected with the blanking motor (51) through a support plate, the middle part of the support rod (54) is connected with the blanking frame (53), and the left part of the support rod (54) is fixedly connected with the machine tool body (1); the right end of the belt (52) is connected with a driving shaft (521), and the left end is connected with a driven shaft (522); the driving shaft (521) is connected with a blanking motor (51); the driven shaft (522) is connected with the supporting rod (54) through a supporting plate; the blanking frame (53) is connected to the front part of the support rod (54), and the top part of the blanking frame is provided with a through hole to enable the processed crystal glass rod raw material to fall down.

3. The crystal glass rod grinding machine according to claim 2, characterized in that the limiting device (2) comprises four clamping plates (21), a limiting plate (22), two V-shaped adjusting blocks (23), four adjusting bolts (24), two pin seats (25), two springs (26) and four supporting pins; the rear part of the clamping plate (21) is transversely provided with a pin hole (211), the rear part of the clamping plate (21) is longitudinally provided with a through hole (212), the top of the clamping plate (21) is transversely provided with a through groove (213), and the front part of the clamping plate (21) is provided with a threaded hole (214) which is directly communicated with the through groove; the clamping plate (21) is connected with the pin seat (26) through a pin hole (211) at the rear part; the pin seat (26) is connected to the frame (1); the left clamping plate (21) and the right clamping plate (21) are respectively arranged symmetrically up and down, and a gap is arranged between the left clamping plate (21) and the right clamping plate (21); the limiting plates (22) are arranged in the middle of the upper clamping plate and the lower clamping plate (21), and the limiting plates (22) are transversely arranged; the front part of the limiting plate (22) is provided with a V-shaped groove, and the left end and the right end of the rear part of the limiting plate (22) are respectively connected with a V-shaped adjusting block (23); the upper end and the lower end of the V-shaped adjusting block (23) respectively penetrate through the through groove (213); the adjusting bolt (24) penetrates through the threaded hole (214) to be connected with the V-shaped adjusting block; the supporting pin (26) passes through a through hole (212) at the rear part of the clamping plate (21) and is connected with a rotating pin on the pin seat (25); the upper side and the lower side of the spring (25) are respectively connected with a supporting pin (26);

the sliding adjusting module (11) comprises a first motor (111), a lead screw (112), a sliding plate (113), a second motor (114), a lifting cylinder (115) and a fixing plate (116); the upper part and the lower part of the rear part of the sliding plate (113) are respectively provided with a transverse guide rail (1131), the middle of the rear part of the sliding plate (113) is provided with a transverse lead screw slider (1132), and the front part of the sliding plate (113) is provided with two vertical guide rails (1133); the sliding plate (113) is connected with the frame (1) through the transverse guide rail (1131); the first motor (111) is arranged on the right side of the sliding plate (113), and the sliding plate (113) is connected with the rack (1); the lead screw (112) is positioned at the rear part of the sliding plate (113), the right end of the lead screw (112) is connected with the first motor (111), and the left end of the lead screw (112) is connected with the lead screw sliding block (1132); the second motor (114) is arranged at the top of the sliding plate (113); the upper part of the lifting cylinder (115) is connected with a second motor (114), and the left side and the right side of the lifting cylinder (115) are connected with the vertical guide rail (1133) in a matching way; a through hole is formed in the fixing plate (116) in the vertical direction, and the fixing plate (116) is installed at the lower part of the sliding plate (113);

the upper grinding mechanism (41) comprises an upper belt pulley (411), an upper stepped shaft (412), an upper grinding wheel (413) and an upper bracket (414); the upper stepped shaft is transversely arranged; the right end of the upper stepped shaft (412) is connected with the upper belt wheel (411), and the left end of the upper stepped shaft (412) is in clearance fit connection with a shaft sleeve (4121) outside the upper stepped shaft (412); the shaft sleeve (4121) is connected with the upper bracket (414) in an interference fit manner; the upper grinding wheel (413) is connected to the upper stepped shaft (412); the upper bracket (414) is connected to the lifting cylinder (115);

an emergency brake handle (4141) is arranged on the side edge of the upper bracket (414), and emergency braking can be realized by rotating the emergency brake handle (4141); the lower grinding mechanism (42) is also provided with a precision adjusting mechanism; the precision adjusting mechanism comprises a transverse gear dial (4241) arranged at the front part of the second bracket (424); adjusting the relative position of the lower grinding wheel (423) and the second bracket (424) in the longitudinal direction by rotating the transverse gear dial (4241), namely, adjusting the longitudinal machining allowance; the precision adjusting mechanism further comprises an adjusting handle (4242) arranged at the lower part of the second bracket (424), and the adjusting handle is used for adjusting the relative position of the lower grinding wheel (423) and the second bracket (424) in the vertical direction, namely used for adjusting the machining allowance in the vertical direction.