CN210732044U - Surface grinding device for bar - Google Patents

Abstract

The utility model discloses a surface grinding device of bar belongs to the grinding equipment field. The grinding device comprises a pair of grinding wheels arranged on a box frame, a grinding power component for providing power for one of the grinding wheels, and an abrasive belt sleeved between the pair of grinding wheels; the other grinding wheel of the pair of grinding wheels is arranged on the adjusting shaft, and the grinding adjusting mechanism is arranged on the adjusting shaft; the supporting shaft fixed on the box frame vertically penetrates into a shaft hole formed in the adjusting shaft; the grinding adjusting mechanism can drive the adjusting shaft to rotate by taking the supporting shaft as a fulcrum. By adopting the scheme, the supporting shaft is driven to rotate by the grinding adjusting mechanism, so that the included angle between the rotating shafts of the pair of grinding wheels is micro-adjusted according to the deviation condition of the abrasive belt, the deviation amount of the abrasive belt is eliminated, and the working stability of the abrasive belt is ensured. The utility model discloses can guarantee the stability in bar grinding process abrasive band, correct the off tracking, guarantee grinding quality.

Description

Surface grinding device for bar

Technical Field

The utility model belongs to the grinding equipment field relates to a bar, especially surface grinding device during metal bar abrasive machining.

Background

The metal bar has wide application range, and particularly has wide application in the fields of machining, building, bridges and aerospace. The steel bar is particularly obviously used in machining, in the using process, the outer skin of the steel bar raw material needs to be cut off before machining generally because the outer surface of the steel bar raw material is rough and has oxide skin, and then the steel bar raw material is machined and used.

For example, chinese utility model patent document CN205684812U discloses a bar peeling machine, which performs cutting and grinding processes on a bar clamped by a bar clamp on a base simultaneously by arranging a cutting mechanism and a grinding mechanism on a workbench, so as to obtain a steel bar with high surface smoothness, thereby satisfying the subsequent high processing requirements. However, when the device is used, an operator still clamps the bars one by one, then manually cuts or grinds the bars, and finally the processed bars are manually removed, namely the feeding, processing and discharging of the bars all need manual operation, so that the production efficiency is inevitably reduced.

In some special fields, such as washing machines, the rotating shaft of the washing machine is an important part for supporting a drum, transmitting power and completing a washing function, the rotating shaft of the washing machine has the characteristics of high-speed rotation and torque transmission during working, the working environment is severe, generally, moisture and dust exist, in addition, the rotating shaft not only rotates forwards and backwards and bears alternating torque, but also ensures the rotation precision so as to reduce noise and reach the required fatigue limit, and therefore, the requirements of the parts on dimensional precision, geometric precision, fatigue strength and the like are high. Before processing, the shaft part is often subjected to cold extrusion treatment, and in order to ensure the cold extrusion quality, a lubricant is often arranged on the surface of a bar blank, so that the surface of the bar blank is required to be smooth, and therefore, the oxide layer on the surface of the bar is required to be removed. To the knowledge of the inventor, the bar stock blank of the rotating shaft of the washing machine at present basically adopts the cutting or grinding mode of the machine tool without special leather grinding equipment. The prior grinding equipment specially designed for the washing machine is also used for the finished product of the shaft of the washing machine, for example, the publication No. CN108081042A discloses a grinding device for the rotating shaft of the washing machine, which is used for grinding the rotating shaft of the washing machine before installation, even if the finished product shaft is ground, and only the grinding uniformity is improved, the grinding device still needs manual operation.

To sum up, get rid of the epidermis to the bar at present, especially the bar blank of washing machine pivot gets rid of the cinder, adopts the abrasive machining in-process, and material loading, pay-off, processing and unloading are whole to all need manual operation, and degree of automation is lower, and production efficiency is comparatively low, awaits a urgent need to solve.

In addition, when the abrasive belt is used for grinding the bar stock, the problem of deviation of the abrasive belt often occurs.

Disclosure of Invention

The utility model provides a surface grinding device of bar, its aim at solve present adopt abrasive band grinding bar can appear the problem of abrasive band off tracking.

In order to solve the problems, the utility model discloses a surface grinding device for bar stock, which comprises a pair of grinding wheels arranged on a box frame, a grinding power component for providing power for one of the grinding wheels, and an abrasive belt sleeved between the pair of grinding wheels; the other grinding wheel of the pair of grinding wheels is arranged on the adjusting shaft, and the grinding adjusting mechanism is arranged on the adjusting shaft; the supporting shaft fixed on the box frame vertically penetrates into a shaft hole formed in the adjusting shaft; the grinding adjusting mechanism can drive the adjusting shaft to rotate by taking the supporting shaft as a fulcrum. By adopting the scheme, the supporting shaft is driven to rotate by the grinding adjusting mechanism, so that the included angle between the rotating shafts of the pair of grinding wheels is micro-adjusted according to the deviation condition of the abrasive belt, the deviation amount of the abrasive belt is eliminated, and the working stability of the abrasive belt is ensured.

The correcting pressing block is fixed on the box frame and presses one end of the adjusting shaft, which is far away from the grinding wheel, into the pressure groove; and two screw holes are respectively formed in two opposite side walls of the pressure groove of the correcting press block, each screw hole is screwed in an adjusting screw, the adjusting screw abuts against the side surface of the adjusting shaft, and the adjusting screw is adjusted to enable the adjusting shaft to rotate. The mode of this for realizing grinding adjustment mechanism function is comparatively simple and easy, cost meet the end, can also adopt other modes certainly, for example set up in an arc spout with the tip of regulating spindle, realize rotating through cylinder or hydro-cylinder drive, or realize fixing in the different positions of arc spout through the bolt.

As a further improvement of the scheme, the adjusting shaft, the supporting shaft and the grinding adjusting mechanism are firstly arranged on the grinding adjusting guide rail, and then the grinding adjusting guide rail is fixed on the box frame. And the grinding adjusting guide rail can be driven by a lead screw nut, a tightness adjusting cylinder or a linear motor. The structure can adjust the distance between the pair of grinding wheels, is convenient for installing the abrasive belt and adjusting the tightness of the abrasive belt. The grinding adjusting guide rail is preferably driven by a tightness adjusting cylinder, the tightness adjusting cylinder can be an air cylinder or an oil cylinder, the air cylinder is preferably selected, the grinding adjusting guide rail is simple to realize, and the grinding adjusting guide rail is more suitable for a machine tool to use.

As an implementation structure of the grinding power assembly in the scheme, the grinding power assembly comprises a grinding motor and a grinding wheel seat which are arranged on a box frame, wherein a grinding wheel shaft is arranged in the grinding wheel seat through a bearing; the grinding wheel shaft extends out of two ends of the grinding wheel seat, one end of the grinding wheel shaft is provided with a grinding wheel, and the other end of the grinding wheel shaft is in transmission connection with a grinding motor, so that the power of the grinding motor is transmitted to the grinding wheel to drive the abrasive belt to grind.

As the preferred mode of transmission connection between the grinding motor and the grinding wheel shaft, the other end of the grinding wheel shaft is provided with a belt wheel, and the belt wheel is in transmission connection with a wheel on an output shaft of the grinding motor through a belt.

As a preferred mode of arrangement of the grinding motor, the grinding motor is arranged on an inclined plane of the box frame, so that the dead weight of the grinding motor has component force for tensioning the belt, the belt is not easy to loosen in work, and the stability of transmission is ensured.

Drawings

FIG. 1 is a view of the whole structure of the bar buffing machine of the present invention viewed from the discharge side;

FIG. 2 is a view of the whole structure of the bar buffing machine of the present invention, viewed from the discharge side, showing the interior thereof after the housing is removed;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a perspective view of a feeding device of the bar buffing machine of the present invention;

FIG. 5 is a front cross-sectional view of the feeding device of FIG. 4;

FIG. 6 is a view of the material pushing plate and the material pushing driving member of the feeding device shown in FIG. 4;

FIG. 7 is a perspective view of the material conveying device in the bar buffing machine of the present invention viewed from one side;

FIG. 8 is an enlarged partial view of the material delivery device shown in FIG. 7;

FIG. 9 is a side view of the guide wheel mechanism of the material delivery device of FIG. 7;

FIG. 10 is a top view of the idler mechanism of FIG. 9;

FIG. 11 is a left side view of the idler mechanism of FIG. 9;

FIG. 12 is a side view of the surface grinding device in the bar peeling machine of the present invention;

FIG. 13 is a front view of the surface grinding apparatus of FIG. 12;

FIG. 14 is a top view of the surface grinding apparatus of FIG. 12;

FIG. 15 is a side view of the blanking device of the bar buffing machine of the present invention;

FIG. 16 is a view of the discharging device shown in FIG. 15 in an initial discharging position;

fig. 17 is a view showing a state of a material take-out end position in operation of the blanking apparatus shown in fig. 15.

The reference numerals in the drawings denote:

100. a frame;

200. a feeding device; 210. a feeding platform; 220. a material storage box; 221. a blanking port; 222. a sloping plate; 230. a material taking push plate; 231. a material taking groove; 232. a material pushing baffle plate; 233. a roller; 240. a material pushing driving member;

300. a material conveying device; 310. a support beam; 320. a chain transmission mechanism; 321. a sprocket; 322. a wheel carrier; 323. a chain; 324. a side guide plate; 330. a guide wheel mechanism; 331. a guide wheel frame; 332. a guide wheel; 333. a linear guide rail; 334. a guide wheel adjusting screw; 340. a support; 350. a transmission gear; 360. a pinch roller;

400. a surface grinding device; 410. a box frame; 420. grinding the wheel; 430. an abrasive belt; 440. grinding the power assembly; 441. grinding the motor; 442. a pulley; 443. a belt; 444. a grinding wheel seat; 450. a grinding adjustment mechanism; 451. grinding the adjusting guide rail; 452. an adjustment shaft; 453. a support shaft; 454. correcting and pressing blocks; 455. an adjusting screw; 456. a tightness adjusting cylinder; 460. a grinding amount adjusting guide rail; 470. grinding quantity adjusting screw rods;

500. a blanking device; 510. a fixed seat; 520. a drive cylinder; 530. a guide bar; 540. taking a material shaft; 550. a counterweight; 560. mounting a plate; 570. taking a material part; 580. a limiting guide plate; 581. a low level linear guide rail section; 582. a slope section; 583. a high level linear guide rail section; 590. a slide base;

600. and (4) a housing.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

The bar peeling machine shown in fig. 1 has an overall structure similar to that of a general machine tool, and is provided with a frame 100 as a supporting base, a corresponding working part mounted on the frame 100 and covered inside by a cover 600, so that a relatively closed processing space can be formed in the cover 600 to reduce noise, reduce pollution and improve production safety; meanwhile, the cover 600 has an openable door facing the operation side for convenient operation.

The working part of the bar peeling machine mainly comprises four parts, namely a feeding device 200, a material conveying device 300, a surface grinding device 400 and a discharging device 500 which are arranged on a rack 100. The feeding device 200 is arranged at the feeding end of the material conveying device 300 and is used for feeding bars to be processed into the material conveying device 300 one by one; the surface grinding device 400 is positioned at a processing station on one side of the feeding direction of the material conveying device 300 and is used for grinding the bar to be processed conveyed to the processing station by the material conveying device 300; the blanking device 500 is disposed at the feeding end of the material conveying device 300, and is used for taking the ground bar material off the material conveying device 300. Fig. 2 is a view showing a working part after the cover 600 is removed, and the arrangement form of the working part can be clearly seen, so that the feeding, processing and discharging full-automatic operation can be realized in the bar grinding process through the organic combination of the feeding device 200, the material conveying device 300, the surface grinding device 400 and the discharging device 500, manual intervention is not needed, and the production efficiency is effectively improved.

The device is suitable for the automatic grinding of all bar stocks, in particular to metal bar stocks, and of course, the device is mainly used for the pretreatment design of the surface of a metal bar stock blank before the cutting process, such as the removal of surface scale. The embodiment is mainly explained by the application of the device in the grinding processing of the rotating shaft of the washing machine, and is used for grinding and removing the surface scale of the blank bar of the rotating shaft of the washing machine. The working part will be described in detail below with reference to specific structures of the respective parts and methods of use in the work.

As shown in fig. 4 and 5, a structural form of the feeding device 200 in the present embodiment is illustrated, and it is a box structure, and mainly comprises a feeding platform 210, a storage box 220, a material-taking push plate 230 and a material-pushing driving member 240. The feeding device 200 is supported and mounted on the frame 100 by a feeding platform 210, and the upper surface of the feeding platform 210 has a plane for the bar stock to be pushed out and enter the feeding device 300. The storage box 220 is disposed above the feeding platform 210, and has a storage cavity with a width capable of accommodating the length of a single bar, and a blanking port 221 at the bottom for dropping out a single bar, and the blanking port 221 is close to the feeding end of the material conveying device 300, so that the bar can be pushed out from the blanking port 221 and fall onto the material conveying device 300. The material taking push plate 230 is disposed between the material storage box 220 and the feeding platform 210, and is located near the blanking port 221 of the material storage box 220, and connected to the material pushing driving member 240, and driven by the material pushing driving member 240 to move back and forth along the feeding direction, so that one end of the material taking push plate 230 near the blanking port 221 opens or closes the blanking port 221. When the material taking push plate 230 moves in the reverse direction of the feeding direction, the blanking port 221 is opened, a bar falls on the plane of the feeding platform 210, and when the material taking push plate 230 moves in the feeding direction, the material taking push plate 230 pushes out the bar falling on the plane of the feeding platform 210, and the bar is fed into the material conveying device 300, so that the feeding is completed.

In order to make the bar material fall from the storage box 220 more smoothly, the inclined plate 222 is designed at the bottom of the storage box 220 to form a slope for the bar material to roll off, and the falling port 221 is located at the lowest position of the slope, so that the bar material in the storage box 220 can smoothly fall out from the falling port under the action of self weight, and can completely fall out without leakage.

When the bar materials fall onto the plane of the feeding platform 210 from the blanking port 221, deviation may occur, and position inaccuracy is caused, for this reason, a material taking groove 231 which is corresponding to the blanking port 221 and can hold a single bar material is formed in one end, close to the blanking port 221, of the material taking push plate 230, the material taking groove 231 on the material taking push plate 230 is open towards one side of the feeding direction, a material pushing baffle 232 which blocks the bar material is arranged on the opposite side of the feeding direction, the bar materials are limited through the material taking groove 231, so that the feeding positions at each time are the same, and the feeding accuracy is ensured. As shown in fig. 6, a structural view of the pushing material driving member 240 connected to the material taking push plate 230 is shown, the pushing material driving member 240 is connected to the rear end of the material taking push plate 230, the front end of the material taking push plate 230 is used as a material pushing end, and a material taking groove 231 is formed.

In order to reduce the motion resistance of the material taking push plate 230, a roller mounting groove is formed in the bottom of the material taking push plate 230, and a roller 233 is mounted on the inner side wall of the roller mounting groove, so that the material taking push plate 230 can be supported on the plane of the feeding platform 210 in a rolling manner through the roller 233, the friction between the material taking push plate 230 and the feeding platform 210 is reduced, the roller 233 is hidden, the gap between the material taking push plate 230 and the feeding platform 210 is small, and the whole structure is compact.

In the feeding device 200, the pushing material driving member 240 is used as a power element of the material pushing plate 230, and may be a cylinder, an oil cylinder, a linear motor, or other structures capable of providing linear reciprocating power in the prior art. In this embodiment, the pushing driving member 240 is selected from a cylinder in consideration of easy implementation and cost.

When the feeding device 200 is used for grinding and feeding the rotating shaft blank of the washing machine, a certain amount of rotating shaft bar blank is stored in the storage box 220; at the beginning, the blanking port 221 of the storage box 220 is closed by the material taking push plate 230; during feeding, the material pushing driving member 240 drives the material pushing plate 230 to move in the reverse direction of feeding, i.e. to the right as shown in fig. 5, the material taking groove 231 on the material pushing plate 230 is aligned with the material dropping port 221, and a rotating shaft bar blank falls into the material taking groove 231; then, the pushing material driving member 240 drives the material taking push plate 230 to move in the feeding direction, so as to push out the bar material in the material taking groove 231, and feed the bar material into the material conveying device 300, thereby completing feeding; meanwhile, the material taking push plate 230 seals the blanking port 221 to prevent the bar from falling down, so as to prepare for the next feeding. After the previous bar is ground, the feeding device 200 repeats the above steps again, and then feeds a bar into the feeding device 300, and so on, and intermittently and continuously feeds the bar. Of course, a sensor may be disposed at the blanking port 221 to detect the feeding state for reliable control.

Referring to fig. 7 and 8, there is shown a structural form of the material conveying device 300 of the present embodiment, which conveys the bar material by using a chain transmission structure, specifically, it includes a chain transmission mechanism 320 mounted on a support beam 310, and at least one guide wheel mechanism 330 located at a grinding station on a side of a feeding direction of the chain transmission mechanism 320. In general, the support beam 310 is supported and installed by a plurality of brackets 340 arranged along a length direction thereof, thereby being fixed to the frame 100. The number of guide wheel mechanisms 330 matches that of face grinder 400, for example, two face grinders 400 may be provided for rough grinding and finish grinding, respectively, and there are two guide wheel mechanisms 330.

The side guide plates 324 are symmetrically arranged on the two sides of the chain transmission mechanism 320 in the feeding direction, so that a feeding space is formed between the side guide plates 324 on the two sides and the guide wheel mechanism 330, and a processing gap is reserved on the two sides of the chain transmission mechanism 320 at the position of the guide wheel mechanism 330, so that a grinding space is reserved when the bar stock reaches the position. Preferably, the upper portions of the side guides 324 on either side of the chain drive 320 extend outwardly to form a V-shaped flare therebetween. By the mode, the accuracy and the stability of conveying the bar on the chain transmission mechanism 320 can be effectively guaranteed, the falling of the bar is avoided, and the grinding is not influenced.

The chain transmission mechanism 320 can be implemented in a conventional manner, for example, it includes two chain wheels 321 mounted on both ends of the support beam 310 via a wheel frame 322, and a chain 323 mounted between the two chain wheels 321, so as to realize a chain transmission feeding structure. The sprocket 321 is driven to rotate by a motor.

In this embodiment, the function of the guide wheel mechanism 330 is important, and is the key to the realization of automatic grinding, and it mainly plays a role in guiding and compressing the bar to suspend the bar. Here, the guide pulley mechanism 330 includes a guide pulley 332 installed on the guide pulley frame 331 near the side of the chain transmission mechanism 320, and the guide pulley 332 is driven by a guide pulley motor. When the number of the guide wheel mechanisms 330 is not less than two, one of the guide wheels 332 of the adjacent guide wheel mechanisms 330 and one of the guide wheels 332 of the two guide wheel mechanisms 330 at the head and the tail can be in transmission connection with the guide wheel motor through universal couplings, so that the synchronous rotation among the plurality of guide wheel mechanisms 330 can be realized by one power source. As shown in fig. 8, the power source of the guide wheel mechanism 330 is a motor, and the power is transmitted to the transmission gear 350 through a chain transmission, and the transmission gear 350 is connected with the coupling. Here, the coupling is a universal coupling, which can accommodate power transmission when each portion is not coaxial, and can satisfy independent adjustment of the amount of compression of each guide wheel mechanism 330.

As shown in fig. 3 and 8, a pressing wheel 360 having a rotation axis parallel to the feeding direction is disposed above the chain transmission mechanism 320 on the guiding side of each guide wheel mechanism 330, and the rotation direction of the guide wheel mechanism 330 is from bottom to top when viewed from the pressing wheel 360 side, i.e., clockwise when viewed from the drawing direction. Guide wheel mechanism 330 can restrict the vertical position of the bar when the bar is being ground in the air, preventing the bar from flying out. Therefore, a triangular grinding space is formed by the action of the guide wheel mechanism 330, the pressing wheel 360 and the surface grinding device 400, and the bar is well limited in the grinding space.

Fig. 9, 10 and 11 show the structure of the guide wheel mechanism 330 of this embodiment, in order to make the guide wheel mechanism 330 have better guiding and rod suspending functions, the projection of the rotating shaft of the guide wheel 332 in the feeding plane is closer to the chain transmission mechanism 320 along the feeding direction and has an included angle α with the feeding direction, and the projection of the rotating shaft of the guide wheel 332 in the plane perpendicular to the feeding plane is further away from the chain transmission mechanism 320 along the feeding direction and has an included angle β with the feeding direction, the guide wheel 332 is arranged in such a way, and has horizontal and vertical component forces, which can not only guide the rod into the grinding station well, but also make the guide wheel 332 drive the rod to suspend and grind, the included angle α and the included angle β are relatively suitable in the range of 1 ° to 5 °, and meet the guiding and suspending requirements on the premise of ensuring the rod to be.

In order to meet the requirements of grinding of bars with different diameters and adjusting of the compaction amount, a guide wheel frame 331 in the guide wheel mechanism 330 is installed on a linear guide rail 333 and can be adjusted along the vertical feeding direction through a guide wheel adjusting screw 334, so that the distance of the guide wheel 332 relative to the chain transmission mechanism is adjusted, the bar guiding compaction amount is adjusted, and the bar guiding compaction amount is adapted to the guiding of the bars with different diameters.

When the material conveying device 300 is used for grinding and feeding a rotating shaft blank of a washing machine, the rotating shaft blank bar materials are fed from the feeding device 200 to the chain 323 of the material conveying device 300 and are fed forwards under the driving of the chain 323; when the bar stock reaches a grinding station, namely the position of the guide wheel mechanism 330, the guide wheel 332 guides the bar stock to enter between the guide wheel 332 and an abrasive belt 430 of the surface grinding device 400, the guide wheel 332 has upward acting force on the bar stock to enable the bar stock to suspend, the upper side of the bar stock is in contact with the press wheel 360 for limiting, the press wheel 360 rotates along with the bar stock, and the surface grinding device 400 grinds the bar stock; the bar stock after grinding falls onto the chain 323, and is conveyed forwards continuously to be ground next step, or is conveyed to the tail end of the material conveying device 300 to wait for blanking.

The surface grinding device 400 adopts the existing grinding structure of the abrasive belt 430 to grind the surface of the bar, but the quality of the bar is mainly the stability of the operation of the abrasive belt 430 by grinding the abrasive belt 430, so the surface grinding device 400 is optimally designed in the embodiment. As shown in fig. 12, 13 and 14, there is shown a configuration of a surface grinding apparatus 400 of the present embodiment, which includes a box frame 410 mounted on a frame 100, a pair of grinding wheels 420 mounted on the box frame 410, a grinding power assembly 440 for powering one of the grinding wheels 420, an abrasive belt 430 fitted between the pair of grinding wheels 420, and a grinding adjustment mechanism 450. Wherein the other grinding wheel 420 of the pair of grinding wheels 420 is mounted on the adjustment shaft 452; a support shaft 453 fixed on the box frame 410 vertically penetrates into a shaft hole arranged on the adjusting shaft 452; the grinding adjustment mechanism 450 is configured to drive the adjustment shaft 452 to rotate about the support shaft 453. By adopting the scheme, the supporting shaft 453 is driven to rotate by the grinding adjusting mechanism 450, so that the included angle between the rotating shafts of the pair of grinding wheels 420 is slightly adjusted according to the deviation condition of the abrasive belt 430, the deviation amount of the abrasive belt 430 is eliminated, and the working stability of the abrasive belt 430 is ensured. The grinding end of the abrasive belt 430 in the surface grinding device 400 is aligned with the machining vacant position of the upper guide plate 324 of the material conveying device 300 and is arranged on both sides of the chain transmission mechanism 320 opposite to the guide wheel mechanism 330.

Here, as an implementation structure of the grinding adjustment mechanism 450, it includes a leveling block 454 having a pressing groove, the leveling block 454 is fixed on the box frame 410, and presses the end of the adjustment shaft 452 away from the grinding wheel 420 into the pressing groove; two opposite side walls of the pressure groove of the correcting press block 454 are respectively provided with a screw hole, each screw hole is screwed into an adjusting screw 455, the adjusting screws 455 are propped against the side surface of the adjusting shaft 452, and the adjusting screws 455 can be adjusted to enable the adjusting shaft 452 to rotate, so that the included angle between the rotating shafts of the two grinding wheels 420 can be slightly adjusted, correction is performed according to the deviation of the abrasive belt 430, and the running stability of the abrasive belt 430 is ensured. In order to realize the function of the grinding adjustment mechanism 450 in a simple and cost-saving manner, other manners may be adopted, such as disposing the end of the adjustment shaft 452 in an arc chute, and rotating the adjustment shaft by driving of an air cylinder or an oil cylinder, or fixing the adjustment shaft at different positions of the arc chute by bolts.

Meanwhile, the adjusting shaft 452, the supporting shaft 453 and the grinding adjusting mechanism 450 are mounted on the grinding adjusting rail 451 first, the grinding adjusting rail 451 is fixed on the box frame 410, and the grinding adjusting rail 451 may be driven by a lead screw nut, a slack adjusting cylinder 456 or a linear motor. With the structure, the distance between the pair of grinding wheels 420 can be adjusted, the installation of the abrasive belt 430 is convenient, and the tightness of the abrasive belt 430 can be adjusted. The grinding adjusting guide rail 451 is preferably driven by a tightness adjusting cylinder 456, and the tightness adjusting cylinder 456 can be an air cylinder or an oil cylinder, preferably an air cylinder, so that the grinding adjusting guide rail is simple to realize and is more suitable for a machine tool.

As an implementation structure of the grinding power assembly 440, it includes a grinding motor 441 and a grinding wheel seat 444 mounted on the box frame 410, a grinding wheel shaft is mounted in the grinding wheel seat 444 through a bearing; the grinding wheel shaft extends out of two ends of the grinding wheel seat 444, one end of the grinding wheel shaft is provided with a grinding wheel 420, and the other end of the grinding wheel shaft is in transmission connection with a grinding motor 441, so that the power of the grinding motor 441 is transmitted to the grinding wheel 420 to drive the abrasive belt 430 to grind. As a preferable mode of the transmission connection between the grinding motor 441 and the grinding wheel shaft, a pulley 442 is attached to the other end of the grinding wheel shaft, and the pulley 442 is transmission-connected to the wheel on the output shaft of the grinding motor 441 via a belt 443.

As a preferable mode of the arrangement of the grinding motor 441, the grinding motor 441 is mounted on an inclined surface of the case frame 410, so that the self weight of the grinding motor 441 has a component force of tightening the belt 443, and thus the belt 443 is not easily loosened during operation, and the stability of transmission is ensured. In addition, the box frame 410 is mounted to the frame 100 through the grinding amount adjusting guide rail 460, and the box frame 410 is driven to move along the grinding amount adjusting guide rail 460 by the grinding amount adjusting screw 470, and the moving direction of the box frame 410 is perpendicular to the feeding direction, so that the grinding amount can be adjusted. The adjusting screw 470 may be connected to a hand wheel outside the operating side of the apparatus to facilitate the grinding amount adjusting operation.

When the surface grinding device 400 is used for grinding a washing machine rotating shaft blank, the grinding motor 441 drives the grinding wheel 420 to rotate, so as to drive the belt to move, and the bar stock entering between the abrasive belt 430 and the guide wheel 332 is ground.

The bar stock ground by the surface grinding device 400 needs to be taken away in time when being conveyed to the tail part by the material conveying device 300, and the bar stock is completed with the assistance of the blanking device 500. As shown in fig. 15, a structural form of the blanking device 500 of the present embodiment is shown, which is disposed at one side of the end of the material conveying device 300, and includes a fixed seat 510 mounted on the frame 100, a driving cylinder 520 and a guide rod 530 mounted on the fixed seat 510, and a sliding seat 590 slidably mounted on the guide rod 530. Wherein, the extension and contraction direction of the driving cylinder 520 is parallel to the guiding of the guide rod 530 and drives the connecting slide 590, and the guiding of the guide rod 530 is parallel to the conveying direction of the material conveying device 300; the sliding seat 590 is rotatably provided with a material taking shaft 540, and the rotation axis of the material taking shaft 540 is vertical to the guide of the guide rod 530; the material taking shaft 540 is provided with a material taking piece 570 at one end close to the chain 323 of the material conveying device 300 through a mounting plate 560, and a material taking driving piece at the other end. When the material taking piece 570 does not take the bar, the material taking driving piece can enable the material taking piece 570 to be aligned to the end part of the bar to be taken on the chain 323, and the bar is grabbed or sucked; when the take-out member 570 takes out the bar, the take-out shaft 540 may be rotated to raise the bar. Here, the guide rods 530 have a pair, and are disposed below the driving cylinder 520, and can stably guide and support the slider 590.

By adopting the scheme, when the bar stock is ground and conveyed to the tail of the material conveying device 300, the end part of the bar stock can be grabbed by the material fetching part 570, the driving cylinder 520 drives the bar stock to be separated from the conveying device 300, then the bar stock is erected under the action of the material fetching driving part and directly received or placed to the next station, preparation is made for the next operation, and the material fetching process is completed.

Get the material action for the rotation of getting material axle 540, get the material driving piece and can adopt the motor, but electric drive gets material axle 540 and rotates, and is comparatively complicated. In the embodiment, the material taking action is optimally designed, the counterweight member 550 is used as a material taking driving member, the required material taking action can be completed without additional power, and when the material taking member 570 does not take the bar material, the weight of the counterweight member 550 can enable the material taking member 570 to be aligned with the end part of the bar material to be taken; when the material taking piece 570 takes the bar, the material taking shaft 540 is forced to rotate under the action of gravity, so that the bar stands up, and the material taking shaft 540 is forced to rotate through the gravity difference before and after material taking, so that material taking and discharging are completed.

One end of the counterweight 550 is provided with a sleeve section sleeved on the material taking shaft 540, and the other end is a counterweight end; and the counterweight end of the counterweight 550 is provided with a roller, and the axis of the roller is parallel to the axis of the material taking shaft 540. A limiting guide plate 580 is arranged on the sliding seat 590 corresponding to the movement direction of the roller, the upper surface of the limiting guide plate 580 is provided with a rail surface for the roller to roll, and the rail surface of the limiting guide plate 580 is divided into a low-position linear guide rail section 581, a slope section 582 and a high-position linear guide rail section 583 which are connected in sequence from the material taking side to the material discharging side. Through the limiting function of the limiting guide plate 580 and the telescopic action of the driving cylinder 520, when the bar is separated from the material conveying device 300, the bar is pulled out along the axial direction and then rotates slowly, and finally the bar stands up, the movement of the bar is stable in the whole process, vibration cannot be generated, and the bar is prevented from falling off from the material taking part 570.

Here, get material 570 and can adopt electro-magnet, sucking disc, manipulator, or other structures that can snatch the bar, preferably get material 570 and adopt the electro-magnet, adsorb the bar terminal surface and can snatch, control is simple. The driving cylinder 520 is an air cylinder, a hydraulic cylinder, a linear motor, or other components capable of realizing linear motion, and preferably, the driving cylinder 520 is an air cylinder, which is simple and easy to implement.

As shown in fig. 16 and 17, when the blanking device 500 is used for performing a grinding and machining blanking operation on a washing machine rotating shaft blank, a bar stock is sent to the end of the material conveying device 300, under the driving action of the driving cylinder 520, the electromagnet as a material taking part 570 approaches the bar stock and contacts with the bar stock, and the electromagnet is electrified to adsorb the bar stock; then, the driving cylinder 520 moves reversely, the electromagnet drives the bar to gradually leave the material conveying device 300, the roller of the counterweight 550 is always in contact with the low-level linear guide rail section 581 of the limit guide plate 580 within the distance of the material conveying device 300, when the bar is just separated from the material conveying device 300, the roller of the counterweight 550 enters the slope section 582 of the limit guide plate 580, and the bar rotates slowly and stands up gradually as the driving cylinder 520 continues to push forwards; when the bar is completely erected vertically, the roller of the counterweight 550 enters the high-position linear guide rail section 583 of the limit guide plate 580, so that the stability of the bar in the whole material taking process is ensured; and finally, the electromagnet is powered off, and the bar stock is vertically put down to finish blanking. And repeating the steps to continuously perform the blanking operation.

In conclusion, through the organic combination of the feeding device 200, the material conveying device 300, the surface grinding device 400 and the blanking device 500, the automatic operation of the whole process of feeding, processing and blanking can be realized in the bar grinding process, the manual intervention is not needed, the labor intensity is reduced, and the production efficiency is effectively improved.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (8)

1. A surface grinding device for bar stock comprises a pair of grinding wheels (420) arranged on a box frame (410), a grinding power assembly (440) for providing power for one grinding wheel (420), and a sand belt (430) sleeved between the pair of grinding wheels (420); the other grinding wheel (420) of the pair of grinding wheels (420) is mounted on an adjustment shaft (452), characterized by further comprising a grinding adjustment mechanism (450); a support shaft (453) fixed on the box frame (410) vertically penetrates into a shaft hole arranged on the adjusting shaft (452); the grinding adjusting mechanism (450) can drive the adjusting shaft (452) to rotate by taking the supporting shaft (453) as a fulcrum.

2. The surface grinding device for bar stock as set forth in claim 1, wherein: the grinding adjustment mechanism (450) comprises a corrective compact (454) having a press groove; the correcting press block (454) is fixed on the box frame (410), and one end of the adjusting shaft (452) far away from the grinding wheel (420) is pressed in the press groove; two opposite side walls of the pressure groove of the correcting pressure block (454) are respectively provided with a screw hole, and each screw hole is screwed in an adjusting screw (455); the adjusting screw (455) is abutted against the side surface of the adjusting shaft (452), and the adjusting screw (455) is adjusted to enable the adjusting shaft (452) to rotate.

3. A surface grinding device for bar stock according to claim 2, wherein: the adjusting shaft (452), the supporting shaft (453) and the grinding adjusting mechanism (450) are all installed on a grinding adjusting guide rail (451) fixed on the box frame (410).

4. A surface grinding device for bar stock according to claim 3, wherein: the grinding adjusting guide rail (451) is driven by a screw nut, a tightness adjusting cylinder (456) or a linear motor.

5. The surface grinding device for bar stock as set forth in claim 4, wherein: the grinding adjusting guide rail (451) is driven by a tightness adjusting cylinder (456), and the tightness adjusting cylinder (456) is an air cylinder or an oil cylinder.

6. A surface grinding device for bar stock according to any one of claims 1 to 5, characterized in that: the grinding power assembly (440) comprises a grinding motor (441) and a grinding wheel seat (444) which are arranged on the box frame (410); a grinding wheel shaft is arranged in the grinding wheel seat (444) through a bearing; the grinding wheel shaft extends out of two ends of the grinding wheel seat (444), one end of the grinding wheel shaft is provided with a grinding wheel (420), and the other end of the grinding wheel shaft is in transmission connection with the grinding motor (441).

7. The surface grinding device for bar stock as set forth in claim 6, wherein: and a belt wheel (442) is arranged at the other end of the grinding wheel shaft, and the belt wheel (442) is in transmission connection with a wheel on an output shaft of the grinding motor (441) through a belt (443).

8. The surface grinding device for bar stock as set forth in claim 7, wherein: the grinding motor (441) is mounted on an inclined surface of the case frame (410) such that the self weight of the grinding motor (441) has a component force that tensions the belt (443).

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