A machine tool feeding device

Abstract

The present invention provides a machine tool feeding device, belonging to the technical field of machine tools. It solves the problems that the existing machine tool feeding device cannot circumferentially position and feed polygonal bar materials, resulting in the inability to achieve automatic feeding of polygonal bar materials, etc. The machine tool feeding device of the present invention includes an inclined feeding chute, positioning side plates are arranged on both sides of the feeding chute, a receiving table is arranged at the discharge end of the feeding chute, a baffle opposite to the discharge port of the feeding chute is fixedly connected to the receiving table, a positioning member that can be moved into and out of the space between the feeding chute and the baffle is arranged on the receiving table, the positioning member includes two separately arranged positioning plates, a positioning groove for accommodating a workpiece is formed between the two positioning plates on the positioning member, and the two positioning plates can be respectively opposite to the discharge ends of the two positioning side plates at the same time. The machine tool feeding device of the present invention can circumferentially position and feed polygonal bar materials such as hexagonal bar materials, so as to achieve automatic feeding of polygonal bar materials and has good working stability.

Description

Technical Field

[0001] The present invention belongs to the technical field of machine tools and relates to a feeding device for a machine tool. Background Art

[0002] With the development of mechanization and automation, the application of installing a feeding device on a machine tool to achieve automatic loading and unloading has become increasingly widespread in factories.

[0003] For bar workpieces, a Chinese patent document discloses a tailstock turning type automatic CNC lathe for processing pin shaft products [Application No.: CN201821991793.8, Publication No.: CN209303722U], which includes a CNC lathe body. An X-axis carriage, a rotating spindle mechanism, a tailstock turning mechanism, and an inclined feeding mechanism are provided on the CNC lathe body. An electric tool rest is provided on the X-axis carriage. The inclined feeding mechanism includes an inclined feeding channel. A material supporting and conveying mechanism is provided on the X-axis carriage. One end of the material supporting and conveying mechanism is close to the inclined feeding mechanism, and a discharging mechanism is provided at the other end of the CNC lathe body where the material supporting and conveying mechanism is located. A pushing mechanism for pushing the workpiece to be processed out of the discharging end of the feeding channel is also provided on the CNC lathe body.

[0004] During loading, the workpieces are arranged horizontally in the feeding channel. The X-axis carriage moves so that the material supporting frame of the material supporting and conveying mechanism is opposite to the pushing mechanism. Then, the workpiece at the discharging end of the feeding channel is pushed out by the pushing mechanism and enters the fixing groove of the material supporting frame. After that, the X-axis carriage drives the material supporting and conveying mechanism to move so that the workpiece is opposite to the rotating spindle mechanism. The movable center of the tailstock turning mechanism extends out to push the workpiece into the elastic chuck of the rotating spindle mechanism, and the elastic chuck clamps the workpiece to complete the loading. When the workpiece to be processed is a polygonal bar, such as a hexagonal bar (i.e., a hexagonal prism bar) or an octagonal bar (i.e., an octagonal prism bar), in order to clamp the workpiece firmly, a structure matching the outer shape structure of the polygonal bar is often provided on the elastic chuck. Therefore, during loading, circumferential positioning of the elastic chuck and the workpiece is required.

[0005] In the above-mentioned feeding device, since there is no structure for circumferentially positioning the workpiece in the feeding channel, when the workpieces are stacked and arranged in the feeding channel, the side surface of the polygonal bar may be in contact with the bottom surface of the feeding channel, or the edge of the polygonal bar may be in contact with the bottom surface of the feeding channel. Although the workpiece has a downward sliding process, due to interference between adjacent workpieces, the circumferential angles of these workpieces often cannot be kept consistent when they reach the discharge end of the feeding channel. Thus, when the pusher mechanism pushes the workpiece out of the discharge end of the feeding channel and onto the supporting rack of the supporting and conveying mechanism, the circumferential angle of the workpiece is uncertain, while the circumferential angle of the elastic chuck is fixed, resulting in the workpiece being unable to be pushed into the elastic chuck to complete automatic feeding. Therefore, the above-mentioned feeding device cannot circumferentially position and feed the polygonal bar, so that the polygonal bar cannot achieve automatic feeding.

[0006] In order to achieve automatic feeding of the polygonal bar, a manipulator can be set up for feeding. However, on the one hand, the manipulator itself is relatively expensive, and on the other hand, in order to have a working space for the manipulator in the machine tool, a special machine tool needs to be customized, which will greatly increase the equipment cost. Or the round bar is fed to the machine tool, and then processed into a polygonal bar through machining before further processing, but this will greatly increase the processing cost. Summary of the Invention

[0007] The object of the present invention is to address the above problems existing in the prior art and propose a machine tool feeding device, which solves the technical problem that the existing machine tool feeding device cannot circumferentially position and feed the polygonal bar, resulting in the inability to achieve automatic feeding of the polygonal bar.

[0008] The object of the present invention can be achieved by the following technical solutions:

[0009] A machine tool feeding device includes an inclined feeding slideway. Positioning side plates are arranged on both sides of the feeding slideway. A receiving table is arranged at the discharge end of the feeding slideway. A baffle opposite to the discharge opening of the feeding slideway is fixedly connected to the receiving table. It is characterized in that a positioning member that can be moved into and out of the space between the feeding slideway and the baffle is arranged on the receiving table. The positioning member includes two separately arranged positioning plates. A positioning groove for accommodating the workpiece is formed between the two positioning plates of the positioning member. The two positioning plates can be respectively opposite to the discharge ends of the two positioning side plates at the same time.

[0010] The machine tool is equipped with a spindle fixture, a carriage assembly, a tailstock, etc. Fix the above-mentioned machine tool feeding device on the machine tool. Set the position of the positioning member. After the positioning member is moved out of the space between the feeding slideway and the baffle, the positioning groove of the positioning member is directly located between the spindle fixture and the tailstock.

[0011] The workpiece is a polygonal bar, taking a hexagonal bar as an example. During loading, the positioning member moves into the space between the feeding chute and the baffle, and the two positioning plates of the positioning member are respectively opposite to the two positioning side plates of the feeding chute. The hexagonal bar is placed longitudinally in the feeding chute, and the positioning side plates on both sides of the feeding chute play a positioning role on the side surface of the workpiece, so that the workpiece can slide downward in the feeding chute with circumferential positioning; the hexagonal bar slides out from the discharge port of the feeding chute and enters the positioning groove of the positioning member, and is blocked by the baffle to prevent it from sliding out of the positioning member. Then the positioning member moves out of the space between the feeding chute and the baffle with the hexagonal bar, and the positioning groove of the positioning member is located between the spindle fixture and the tailstock. When the tip of the tailstock extends, it can push the hexagonal bar into the spindle fixture in the state of circumferential positioning, realizing the automatic loading of the hexagonal bar.

[0012] Since the two positioning plates can be respectively opposite to the discharge ends of the two positioning side plates at the same time, when the hexagonal bar slides out of the feeding chute and enters the positioning groove, the positioning plates and the positioning side plates have the same positioning effect, so that the workpiece maintains the same circumferential positioning state and moves from the feeding chute to the positioning member; during the process of the positioning member driving the hexagonal bar to move and the process of the hexagonal bar disengaging from the positioning member, the two positioning plates of the positioning member always have a circumferential positioning effect on the hexagonal bar, preventing the hexagonal bar from rotating during the movement, so that the workpiece always maintains the same circumferential positioning state for feeding. The feeding device of this machine tool can perform circumferential positioning feeding on polygonal bars such as hexagonal bars, thus realizing the automatic loading of polygonal bars.

[0013] Moreover, the two positioning plates can be respectively opposite to the discharge ends of the two positioning side plates at the same time, making the circumferential angles of the positioning of the positioning member and the feeding chute on the hexagonal bar basically the same, ensuring that the hexagonal bar maintains a stable state of circumferential positioning during feeding, so that after all the hexagonal bars are positioned by the positioning side plates of the feeding chute and the positioning plates of the positioning member, their circumferential angles can maintain good consistency, enabling the process of automatic loading of the hexagonal bar to proceed continuously and smoothly, and ensuring the stability of the operation of the feeding device.

[0014] In the above-mentioned feeding device of the machine tool, the notch of the positioning groove is arranged downward, a positioning cylinder is arranged on one side of the receiving table, a positioning hole matching the outer shape of the workpiece and allowing the workpiece to pass through is arranged in the positioning cylinder, a notch is formed on the upper side wall at the feeding end of the positioning cylinder and on the wall surface of the positioning hole, the positioning member can move to the notch and make the notch of the positioning groove opposite to the notch, and a pushing member capable of pushing the workpiece out of the positioning hole is arranged outside the feeding end of the positioning cylinder.

[0015] Fix the above-mentioned machine tool feeding device on the machine tool, adjust the position of the positioning cylinder so that the positioning hole of the positioning cylinder faces the spindle fixture. After the positioning member moves out from between the baffle and the feeding chute and enters the notch of the positioning cylinder, and the notch of the positioning groove faces the notch, the hexagonal bar stock is brought to the notch by the positioning member and enters the positioning hole through the notch of the positioning groove and the notch on the positioning cylinder. Then, the pushing member pushes the workpiece out of the positioning hole and into the spindle fixture, and the spindle fixture clamps the workpiece to complete the feeding. Since the positioning hole matches the shape of the hexagonal bar stock, the positioning hole has a circumferential positioning effect on the hexagonal bar stock. At the same time, after the hexagonal bar stock enters the positioning hole from the positioning member, it is positioned from the two positioning plates of the positioning member to the circumferential positioning of the positioning hole in the positioning cylinder, and its circumferential angle is adjusted, making the circumferential angle of the hexagonal bar stock more compatible with the spindle fixture. Thus, the hexagonal bar stock can enter the spindle fixture better to complete the feeding. This feeding device can better perform circumferential positioning on polygonal bar stocks such as hexagonal bar stocks, enabling the polygonal bar stock to achieve automatic feeding more smoothly.

[0016] In the above-mentioned machine tool feeding device, a material blocking member is fixed on the positioning member. When the positioning member moves out from between the feeding chute and the baffle, the material blocking member blocks the discharge port of the feeding chute. When the positioning member moves into the space between the feeding chute and the baffle, the material blocking member opens the discharge port of the feeding chute.

[0017] After the material blocking member blocks the discharge port of the feeding chute, the workpiece cannot slide out from the feeding chute. After the discharge port of the feeding chute is opened, the workpiece can normally slide out from the feeding chute. The material blocking member blocks the discharge port of the feeding chute when the positioning member moves out from between the feeding chute and the baffle, preventing the workpiece from sliding out of the feeding chute when the two positioning plates are not aligned with the positioning side plates of the feeding chute, ensuring that the workpiece maintains a circumferential positioning state during transportation in the feeding device, facilitating the realization of automatic feeding, and ensuring the stability of the automatic feeding process.

[0018] In the above-mentioned machine tool feeding device, the positioning member further includes a connecting plate connected to the upper ends of the two positioning plates. A limiting block is installed in the positioning groove, and an adjusting member for adjusting the height of the limiting block is provided between the limiting block and the connecting plate. An adjusting structure one for adjusting the distance between the two positioning plates is provided between one of the positioning plates and the connecting plate.

[0019] The limiting block limits the workpiece in the vertical height direction, reducing the vertical movement of the workpiece when it is driven by the positioning member to move, making the feeding device work stably. The setting of the adjusting member makes the height of the limiting block adjustable, facilitating the adjustment of the limiting block to a suitable height. The setting of the adjusting structure one can adjust the distance between the two positioning plates, enabling the positioning plates to be more accurately opposite to the positioning side plates, maintaining the consistency of the circumferential angle of the workpiece during the transfer process from the feeding chute to the positioning member, and thus making the automatic feeding process more stable.

[0020] In the above-mentioned machine tool feeding device, a limiting slot is provided on one of the positioning plates, and a limiting protrusion is provided on the limiting block. The limiting protrusion is embedded in the limiting slot and can move up and down in the limiting slot.

[0021] The limiting block and the limiting slot have a guiding and limiting function, so that the limiting block will not rotate circumferentially during height adjustment, making the height adjustment of the limiting block accurate and convenient.

[0022] In the above-mentioned machine tool feeding device, the machine tool feeding device further includes a receiving cylinder that can move between the positioning cylinder and the machine tool spindle fixture. A receiving hole that can be docked with the positioning hole is provided on the receiving cylinder, and the shape of the receiving hole matches the workpiece. A pushing member that can push the workpiece out of the receiving hole is provided outside the receiving cylinder.

[0023] The feeding slideway, the receiving table and the positioning cylinder are fixed on the machine tool. The receiving cylinder is installed on the carriage assembly, and the receiving cylinder is moved between the machine tool spindle fixture and the positioning cylinder through the carriage assembly. During loading, the receiving cylinder is docked with the positioning cylinder to make the receiving hole dock with the positioning hole. After the workpiece is brought into the positioning cylinder by the positioning member, the pushing member pushes the workpiece out of the positioning cylinder and makes the workpiece enter the receiving hole of the receiving cylinder. Since the shape of the receiving hole matches the workpiece, the workpiece is circumferentially positioned in the receiving hole. Then the receiving cylinder moves to the machine tool spindle fixture, and the pushing member pushes the workpiece out of the receiving hole and makes the workpiece enter the machine tool spindle fixture. The machine tool spindle fixture clamps the workpiece to complete the loading. The receiving cylinder keeps the workpiece in a circumferentially positioned state, enabling automatic loading of the workpiece. And after the receiving cylinder is provided, the positioning cylinder, the receiving table and the feeding slideway are all fixed on the machine tool, ensuring the stability of the feeding process and facilitating the stable automatic feeding of the workpiece.

[0024] In the above-mentioned machine tool feeding device, the machine tool feeding device further includes a storage slideway that is inclined. The feeding end of the feeding slideway is horizontally arranged at the discharge port of the storage slideway. There is a height difference between the feeding end of the feeding slideway and the discharge end of the storage slideway, and the feeding slideway is arranged lower than the storage slideway. A material separating assembly that can separate the workpieces one by one is provided on the storage slideway.

[0025] During loading, the hexagonal bar stock is placed horizontally in the storage chute. The hexagonal bar stocks are separated one by one at the material distribution component. After being separated, the hexagonal bar stocks can rotate freely without being interfered by adjacent hexagonal bar stocks. To maintain balance, the side surface of the hexagonal bar stock will lean against the bottom surface of the storage chute, thus achieving primary positioning. Due to the height difference between the feeding end of the feeding chute and the discharging end of the storage chute, and by utilizing the structural characteristics of the hexagonal bar stock, during the process of the hexagonal bar stock sliding out of the storage chute and falling into the feeding chute, under the action of the gravitational torque, the hexagonal bar stock will deflect around the contact point with the bottom surface of the storage chute, making two of its side surfaces gradually become vertical. The feeding end of the feeding chute is horizontally arranged at the discharging opening of the storage chute, and positioning side plates are provided on both sides of the feeding chute. In this way, when the hexagonal bar stock enters the feeding chute, it is placed longitudinally, and the two vertical side surfaces of the hexagonal bar stock are respectively opposite to the two positioning side plates on the feeding chute. When the hexagonal bar stock falls onto the feeding chute, circumferential positioning is formed and it slides while maintaining the circumferential positioning state in the feeding chute.

[0026] Therefore, the storage chute and the feeding chute together form an integral unit that can automatically achieve circumferential positioning of the workpiece. After setting this feeding device on the machine tool, regardless of the circumferential angle of the hexagonal bar stock in the storage chute, it can achieve automatic circumferential positioning when sliding out of the storage chute and entering the feeding chute. After automatic positioning, the hexagonal bar stock can achieve automatic feeding. This feeding device of the machine tool can achieve automatic circumferential positioning of polygonal bar stocks such as hexagonal bar stocks, which is beneficial for realizing automatic feeding of polygonal bar stocks such as hexagonal bar stocks.

[0027] In the above feeding device, the feeding end of the positioning side plate close to the storage chute has a connecting portion, and the feeding end of the other positioning side plate has a limiting portion that protrudes upward from the connecting portion. The discharging end of the storage chute is erected on the connecting portion and forms a rotating space with the limiting portion.

[0028] The existence of the rotating space enables the hexagonal bar stock to deflect without interference when sliding out of the storage chute. At the same time, the limiting portion has a limiting effect, so that the hexagonal bar stock is limited during the process of entering the feeding chute after completing deflection, ensuring circumferential positioning between the workpiece and the two positioning side plates, enabling this feeding device to position the hexagonal bar stock more smoothly and enabling the hexagonal bar stock to achieve automatic feeding more smoothly.

[0029] In the above feeding device of the machine tool, the storage chute includes a lower chute connected to the feeding chute and an upper chute located above the lower chute. The discharging end of the upper chute is connected to the feeding end of the lower chute and there is a height difference between them.

[0030] The hexagonal bar stock is horizontally placed into the upper slideway. At this time, the circumferential angle of the hexagonal bar stock may be in an uncertain state. When the hexagonal bar stock slides from the upper slideway to the lower slideway, due to the height difference, the hexagonal bar stock can generate a flip during the falling process. After falling into the lower slideway, the side surface of the hexagonal bar stock can be abutted against the bottom surface of the storage slideway to generate pre-positioning. In this way, the hexagonal bar stocks in the lower slideway can be in the same circumferential angle, so as to better position the hexagonal bar stocks in the feeding device and make the workpiece realize automatic feeding more smoothly.

[0031] In the above-mentioned machine tool feeding device, the material distribution component includes a first cylinder and a second cylinder arranged in sequence along the extending direction of the storage slideway. The first cylinder is close to the feeding slideway, and the piston rods of the first cylinder and the second cylinder can block the workpiece in the storage slideway when they extend; when the piston rods of the first cylinder and the second cylinder both extend, there is a material distribution space for placing one workpiece between the piston rods of the first cylinder and the second cylinder in the storage slideway, and there is a lower slide space for placing at least one workpiece at the edge of the discharge port of the storage slideway from the piston rod of the first cylinder in the storage slideway.

[0032] When the material distribution action is not performed, the piston rods of the first cylinder and the second cylinder both extend, and the workpiece is blocked in the storage slideway. When distributing materials, the piston rod of the second cylinder retracts, the first workpiece slides down and is blocked by the piston rod of the first cylinder, then the piston rod of the second cylinder extends to separate the first workpiece and the second workpiece, and then the piston rod of the first cylinder retracts, the first workpiece slides out of the storage slideway, and then the piston rod of the first cylinder extends again, and the material distribution process is repeated in sequence.

[0033] The material distribution space for placing only one workpiece enables the workpieces to be smoothly separated one by one, making the material distribution of the workpieces smooth and effective; the setting of the lower slide space ensures that the side surface of the workpiece abuts against the bottom surface of the storage slideway when the workpiece slides out of the storage slideway, so as to ensure the accurate positioning of the workpiece in the feeding slideway after flipping.

[0034] In the above-mentioned machine tool feeding device, the feeding slideway includes a feeding bottom plate, two positioning side plates are respectively fixed on the feeding bottom plate, and positioning sliding shafts are fixed between the two positioning side plates and the feeding bottom plate. The positioning sliding shafts lift the workpiece to make the workpiece slide more stably in the feeding slideway.

[0035] Compared with the prior art, the present invention has the following advantages:

[0036] 1. Set a movable positioning part, and the two positioning plates of the positioning part can be respectively opposite to the two positioning side plates of the feeding slideway at the same time, so that polygonal bar stocks such as hexagonal bar stocks can continuously maintain the same circumferential positioning state during feeding, and the polygonal bar stocks can smoothly realize automatic feeding.

[0037] 2. The setting of the positioning cylinder enables the hexagonal bar stock to maintain a circumferential positioning state continuously during feeding, and at the same time, the circumferential angle of the workpiece can be corrected through the positioning cylinder, making the circumferential angle of the workpiece closer to the spindle fixture, so that the workpiece can be automatically loaded more smoothly.

[0038] 3. A material distribution component is arranged on the material storage chute. The discharge port of the material storage chute is connected to the feeding chute for longitudinally placing workpieces. There is a height difference between the discharge end of the material storage chute and the feeding end of the feeding chute. The material storage chute and the feeding chute together form an integral body that can automatically circumferentially position the workpiece, enabling polygonal bar stocks such as hexagonal bar stocks to achieve automatic circumferential positioning regardless of their circumferential angles in the material storage chute, and after sliding out of the material storage chute and entering the feeding chute, the hexagonal bar stock can achieve automatic circumferential positioning and then automatic feeding.

[0039] 4. The material storage chute is divided into an upper chute and a lower chute. The upper chute and the lower chute are connected and have a height difference, enabling the workpiece to be initially positioned when entering the lower chute, making it possible for the hexagonal bar stock to be positioned more smoothly in the feeding device and enabling the hexagonal bar stock to be automatically loaded more smoothly.

[0040] 5. A material blocking part, a limit block, an adjustment structure I and a receiving cylinder are set, enabling the hexagonal bar stock to maintain a circumferential positioning state continuously during feeding and enabling the hexagonal bar stock to be automatically loaded more smoothly. Brief Description of the Drawings

[0041] Figure 1 is a three-dimensional view of the first embodiment of this feeding device when installed on a machine tool;

[0042] Figure 2 is a three-dimensional view of the material storage chute and the feeding chute in the first embodiment of this feeding device;

[0043] Figure 3 is a cross-sectional view of the material storage chute and the feeding chute in the first embodiment of this feeding device;

[0044] Figure 4 is a partial three-dimensional view of the feeding chute and the positioning part in the first embodiment of this feeding device;

[0045] Figure 5 is a three-dimensional view of the positioning cylinder in the first embodiment of this feeding device;

[0046] Figure 6 is a three-dimensional view of the positioning part in the first embodiment of this feeding device;

[0047] Figure 7 is a structural schematic diagram of the material distribution component in the fifth embodiment of this feeding device.

[0048] In the figure, 1 is a workpiece; 2 is a bed; 3 is a spindle box; 4 is a carriage assembly; 5 is a spindle fixture; 6 is a stock chute; 6a is a lower chute; 6b is an upper chute; 6c is a blanking opening; 6d is a turning limit plate; 7 is a material distribution assembly; 7a is a first cylinder; 7b is a second cylinder; 7c is a material distribution space; 7d is a lower space; 7e is a material distribution wheel; 8 is a feeding chute; 8a is a positioning side plate; 8b is a feeding bottom plate; 8c is a positioning slide shaft; 8d is a connecting part; 8e is a limiting part; 8f is a rotating space; 9 is a receiving table; 9a is a baffle; 10 is a positioning member; 10a is a positioning plate; 10b is a positioning groove; 10c is a connecting plate; 10d is a limiting block; 10e is a limiting slot; 10f is a limiting protrusion; 11 is a material blocking member; 12 is a flat pushing member; 13 is a positioning cylinder; 13a is a positioning hole; 13b is a notch; 13c is a gap; 14 is a pushing member; 15 is a receiving cylinder; 15a is a receiving hole; 16 is a material pushing member; 18 is a receiving hopper; 19 is an inclined chute; 20 is a conveyor belt; 21 is a collection box; 22 is a swing cylinder; 23 is a sealing plate. Detailed implementation mode

[0049] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0050] Embodiment 1

[0051] As Figures 1-6 shown, a machine tool feeding device is installed on a machine tool and is used for feeding and unloading the workpiece 1. The workpiece 1 is a polygonal bar, such as a pentagonal bar, a hexagonal bar or an octagonal bar, etc. The machine tool includes a bed 2 and an outer cover fixed on the bed 2. A partition is provided inside the outer cover, and the outer cover and the partition are not shown in the figure. A spindle box 3 and a carriage assembly 4 are provided on the bed 2. The spindle box 3 is fixed on the left side of the partition, and the carriage assembly 4 is fixed on the right side of the partition. A spindle fixture 5 for clamping the workpiece 1 is provided on the spindle box 3. The machine tool feeding device includes a loading mechanism and an unloading mechanism. The loading mechanism includes a stock chute 6, a feeding chute 8, a receiving table 9, a positioning member 10, a positioning cylinder 13 and a receiving cylinder 15. The unloading mechanism includes a receiving hopper 18, an inclined chute 19, a conveyor belt 20 and a collection box 21. The conveyor belt 20 is installed in front of the bed 2, the collection box 21 is placed at the output end of the conveyor belt 20, the inclined chute 19 is installed at the input end of the conveyor belt 20, and the inclined chute 19 is connected to a driving member. The driving member can drive the inclined chute 19 to move left and right. A swing cylinder 22 is fixed on the spindle box 3. A driving arm is fixed on the rotating shaft of the swing cylinder 22. The receiving hopper 18 is fixed on the driving arm. The swing cylinder 22 can drive the receiving hopper 18 to swing between the spindle fixture 5 and the inclined chute 19. An opening is provided on the receiving hopper 18, and a sealing plate 23 is provided at the opening. A cylinder is fixed on the driving arm, and the cylinder drives the sealing plate 23 to move so that the sealing plate 23 closes and opens the opening of the receiving hopper 18.

[0052] As Figures 1-3 shown, the material storage chute 6 is fixed on the outer side of the outer cover. The material storage chute 6 is inclined and used for horizontally placing the workpiece 1. The material storage chute 6 includes a lower chute 6a and an upper chute 6b. The lower chute 6a is inclined and fixed on the outer cover through a bracket. The upper chute 6b is located above the lower chute 6a and fixed on the lower chute 6a through a support bar. The discharge end of the upper chute 6b is connected to the feed end of the lower chute 6a and there is a height difference between them. The inclination angle of the lower chute 6a relative to the horizontal plane is 10° - 15°, preferably 12°. The inclination angle of the upper chute 6b relative to the horizontal plane is the same as that of the lower chute 6a relative to the horizontal plane. A steering limit plate 6d is arranged between the discharge end of the upper chute 6b and the feed end of the lower chute 6a. There is a blanking port 6c for one workpiece 1 to pass through between the edge of the discharge port of the upper chute 6b and the steering limit plate 6d. The size of the height difference is set according to the size of the workpiece 1, so that the workpiece 1 can smoothly fall from the upper chute 6b to the lower chute 6a and will not fall out of the material storage chute 6 from the connection between the lower chute 6a and the upper chute 6b.

[0053] A material separation component 7 capable of separating the workpieces 1 one by one is arranged on the material storage chute 6. The material separation component 7 is fixedly installed at the discharge end of the lower chute 6a. The material separation component 7 includes a cylinder one 7a and a cylinder two 7b arranged in sequence along the extending direction of the lower chute 6a. The cylinder one 7a is close to the discharge port of the lower chute 6a. The piston rods of the cylinder one 7a and the cylinder two 7b can both extend to block the workpiece 1 in the material storage chute 6. When the piston rods of the cylinder one 7a and the cylinder two 7b both extend, there is a material separation space 7c for placing one workpiece 1 between the piston rods of the cylinder one 7a and the cylinder two 7b in the lower chute 6a. There is a lower space 7d for placing at least one workpiece 1 from the piston rod of the cylinder one 7a to the edge of the discharge port of the lower chute 6a in the lower chute 6a.

[0054] The feeding chute 8 is inclined and used for longitudinally placing the workpiece 1. The feeding chute 8 is fixed inside the outer cover. The feeding end of the feeding chute 8 extends out of the outer cover and is connected to the discharging end of the lower chute 6a. The inclination angle of the feeding chute 8 with respect to the horizontal plane is 8° - 12°, preferably 10°. The inclination angle of the storage chute 6 is coordinated with that of the feeding chute 8, enabling the workpiece 1 to complete automatic positioning more smoothly. The feeding end of the feeding chute 8 is horizontally arranged at the discharging opening of the storage chute 6, that is, in the three-dimensional space, relative to the storage chute 6, the feeding chute 8 is inclined and horizontally arranged. In the projection on the horizontal plane, the storage chute 6 and the feeding chute 8 are perpendicular to each other. There is a height difference between the feeding end of the feeding chute 8 and the discharging end of the storage chute 6, and the feeding chute 8 is arranged lower than the storage chute 6. The size of the height difference can be theoretically calculated according to the structural dimensions of the workpiece 1, the speed at which the workpiece 1 slides out of the storage chute 6, and the force on the workpiece 1, etc., or can be determined through physical experiments. Positioning side plates 8a for positioning the sides of the workpiece 1 are arranged on both sides of the feeding chute 8. When the hexagonal bar stock is in the feeding chute 8, its two relatively arranged sides are respectively opposite to the two positioning side plates 8a. The feeding chute 8 includes a feeding bottom plate 8b. The two positioning side plates 8a are respectively fixed on the feeding bottom plate 8b. Positioning sliding shafts 8c are fixed between the two positioning side plates 8a and the feeding bottom plate 8b. The positioning sliding shafts 8c are fixed on the inner side surfaces of the positioning side plates 8a. An adjusting structure two is arranged between at least one positioning side plate 8a and the feeding bottom plate 8b, and the width between the two positioning side plates 8a is adjustable through the adjusting structure two. The adjusting structure two includes a strip-shaped hole or a strip-shaped groove arranged on the feeding bottom plate 8b. After the screw passes through the strip-shaped hole or the strip-shaped groove, it is fixedly connected to the positioning side plate 8a. A connecting portion 8d is provided at the feeding end of the positioning side plate 8a close to the lower chute 6a. A limiting portion 8e protruding upward from the connecting portion 8d is provided at the feeding end of the other positioning side plate 8a. The discharging end of the storage chute 6 is erected on the connecting portion 8d and forms a rotating space 8f with the limiting portion 8e.

[0055] As Figure 1 , Figures 4-6As shown, a receiving table 9 is provided at the discharging end of the feeding chute 8, and the receiving table 9 is fixed on the main spindle box 3. A baffle 9a opposite to the discharging port of the feeding chute 8 is fixedly connected to the receiving table 9. A positioning member 10 that can be moved into and out of the space between the feeding chute 8 and the baffle 9a is provided on the receiving table 9. The positioning member 10 includes two separately arranged positioning plates 10a. A positioning groove 10b is formed between the two positioning plates 10a on the positioning member 10. The notch of the positioning groove 10b faces downward. The upper ends of the two positioning plates 10a are connected with a connecting plate 10c. A limiting block 10d is installed in the positioning groove 10b. An adjusting member for adjusting the height of the limiting block 10d is provided between the limiting block 10d and the connecting plate 10c, and the adjusting member is not shown in the figure. The adjusting member is an adjusting bolt and an adjusting nut. The adjusting bolt is fixed to the limiting block 10d. After passing through the connecting plate 10c, the adjusting bolt is threadedly connected with the adjusting nut. A fixing nut is also threadedly connected to the adjusting bolt. The fixing nut is located between the limiting block 10d and the connecting plate 10c. The fixing nut and the adjusting nut abut against the connecting plate 10c. The height of the limiting block 10d is adjusted by rotating the adjusting nut and the fixing nut; or the adjusting member is an adjusting bolt and a fixing nut. The fixing nut is threadedly connected to the adjusting bolt. After passing through the limiting block 10d and the fixing nut, the adjusting bolt is threadedly connected with the connecting plate 10c. The fixing nut is tightened to fix the limiting block 10d on the adjusting bolt. The height of the limiting block 10d is adjusted by rotating the adjusting bolt. An adjusting structure one for adjusting the distance between the two positioning plates 10a is provided between one of the positioning plates 10a and the connecting plate 10c, that is, one of the positioning plates 10a is adjustably fixedly connected to the connecting plate 10c. The adjusting structure one includes a connecting strip hole and a bolt provided on the connecting plate 10c. After passing through the connecting strip hole, the bolt is threadedly connected to the positioning plate 10a. The distance between the two positioning plates 10a is adjusted by adjusting the position of the positioning plate 10a; or the adjusting structure one includes a bolt. The side part of the connecting plate 10c has a downward protruding side convex part. After passing through the side convex part, the bolt is fixed to the positioning plate 10a. Two nuts are threadedly connected to the bolt. The two nuts respectively abut against both sides of the side convex part. A limiting slot 10e is also provided on one of the positioning plates 10a. A limiting protrusion 10f is provided on the limiting block 10d. The limiting protrusion 10f is embedded in the limiting slot 10e and can move up and down in the limiting slot 10e. A material blocking member 11 is fixed on the positioning member 10. When the positioning member 10 is moved out of the space between the feeding chute 8 and the baffle 9a, the material blocking member 11 blocks the discharging port of the feeding chute 8; when the positioning member 10 is moved into the space between the feeding chute 8 and the baffle 9a, the material blocking member 11 opens the discharging port of the feeding chute 8. The material blocking member 11 can be integrally fixed to one of the positioning plates 10a.

[0056] On one side of the loading table 9, there is a positioning cylinder 13. The positioning cylinder 13 is fixed on the spindle box 3 and penetrates through the partition plate. The feeding end of the positioning cylinder 13 is located on the left side of the partition plate, and the discharging end of the positioning cylinder 13 is located on the right side of the partition plate. A positioning hole 13a that matches the shape of the workpiece 1 and allows the workpiece 1 to pass through is provided inside the positioning cylinder 13. An indentation 13b is formed on the upper side wall of the feeding end of the positioning cylinder 13, and a notch 13c is formed on the wall surface of the positioning hole 13a. A pusher 14 capable of pushing the workpiece 1 out of the positioning hole 13a is provided outside the feeding end of the positioning cylinder 13. The pusher 14 can be a cylinder or a linear motor. A flat pusher 12 is connected to the positioning member 10. The flat pusher 12 can be a cylinder or a linear motor, etc. The flat pusher 12 drives the positioning member 10 to move between the discharging end of the feeding slideway 8 and the indentation 13b of the positioning hole 13a. When the positioning member 10 moves between the feeding slideway 8 and the baffle 9a, the two positioning plates 10a can be respectively opposite to the discharging ends of the two positioning side plates 8a at the same time. When the positioning member 10 moves to the indentation 13b of the positioning cylinder 13, the notch of the positioning groove 10b is opposite to the notch 13c at the positioning hole 13a.

[0057] The machine tool feeding device further includes a receiving cylinder 15 that can move between the positioning cylinder 13 and the machine tool spindle fixture 5. The receiving cylinder 15 is fixed on the carriage assembly 4. A receiving hole 15a that can be docked with the positioning hole 13a is provided on the receiving cylinder 15, and the shape of the receiving hole 15a matches that of the workpiece 1. A ejector 16 capable of pushing the workpiece 1 out of the receiving hole 15a is provided outside the receiving cylinder 15. The ejector 16 can be a cylinder or a linear motor.

[0058] For the convenience of description, a hexagonal bar workpiece is taken as an example of the polygonal bar workpiece. Before the machining starts, the piston rods of cylinder one 7a and cylinder two 7b both extend. The pusher 12 drives the positioning member 10 to move into the space between the feeding chute 8 and the baffle 9a, and makes the positioning plate 10a face the positioning side plate 8a. Then, the hexagonal bar can be manually placed in the storage chute 6. At this time, the hexagonal bar in the storage chute 6 is in a state of uncertain circumferential angle. It may be that the side of the hexagonal bar abuts against the bottom surface of the storage chute 6, or it may be that the edge of the hexagonal bar abuts against the bottom surface of the storage chute 6. When starting the machining, the piston rod of cylinder two 7b retracts, the first hexagonal bar slides down and abuts against the piston rod of cylinder one 7a. Then the piston rod of cylinder two 7b extends to separate the first hexagonal bar and the second hexagonal bar. After that, the piston rod of cylinder one 7a retracts, and the first hexagonal bar slides out of the lower chute 6a and enters the feeding chute 8. Then the piston rod of cylinder one 7a extends. The first hexagonal bar slides out of the feeding chute 8 and enters the positioning groove 10b of the positioning member 10. Then the pusher 12 pushes the positioning member 10 to the notch 13b of the positioning cylinder 13. The notch of the positioning groove 10b faces the notch 13c of the positioning hole 13a, and the first hexagonal bar falls from the positioning groove 10b into the positioning hole 13a. Then the carriage assembly 4 drives the receiving cylinder 15 to move, so that the receiving hole 15a in the receiving cylinder 15 faces the positioning hole 13a of the positioning cylinder 13. The pusher 14 pushes the first hexagonal bar in the positioning hole 13a out and makes the first hexagonal bar enter the receiving hole 15a. Then the carriage assembly 4 moves to move the receiving cylinder 15 to the spindle fixture 5. The ejector 16 pushes the first hexagonal bar out of the receiving cylinder 15 and into the spindle fixture 5, and the spindle fixture 5 clamps the first hexagonal bar to complete the loading. After the first hexagonal bar is loaded, the machine tool processes it. During the processing, the second hexagonal bar is conveyed into the positioning member 10 and waits to be pushed out. After the first hexagonal bar is processed, the swing cylinder 22 rotates to swing the receiving hopper 18 to the spindle fixture 5, and the first hexagonal bar fixed on the spindle fixture 5 is located at the opening of the receiving hopper 18. The spindle fixture 5 releases the first hexagonal bar, and the first hexagonal bar falls into the receiving hopper 18. Then the sealing plate 23 moves to close the opening of the receiving hopper 18. Then the swing cylinder 22 drives the receiving hopper 18 to swing forward, the inclined chute 19 moves to the right, the receiving hopper 18 is located above the inclined chute 19, the sealing plate 23 opens the opening of the receiving hopper 18, and the first hexagonal bar falls from the receiving hopper 18 into the inclined chute 19. At the same time, the inclined chute 19 moves to the left, and the first hexagonal bar falls along the inclined chute 19 onto the conveyor belt and is then conveyed by the conveyor belt into the collection box 21 to complete the unloading. After the first hexagonal bar falls into the receiving hopper 18, the receiving cylinder 15 moves and docks with the positioning cylinder 13 to continue to complete the loading operation of the second hexagonal bar. In this way, the working process of automatic loading and unloading is carried out continuously in a cycle.

[0059] After separating the hexagonal bar stock from the adjacent hexagonal bar stock through the material dividing component 7, the hexagonal bar stock continues to slide down along the lower slideway 6a. During the sliding process, since the hexagonal bar stock is not interfered by other hexagonal bar stocks, in order to maintain balance, the side surface of the hexagonal bar stock will lean against the bottom surface of the lower slideway 6a to form a primary positioning. When the hexagonal bar stock slides out of the storage slideway 6 and falls onto the feeding slideway 8, by utilizing the structural characteristics of the hexagonal bar stock, under the action of the gravitational torque, the hexagonal bar stock will rotate around the point where it abuts against the bottom surface of the storage slideway 6, making two opposite side surfaces of the hexagonal bar stock gradually tend to be vertical. The feeding end of the feeding slideway 8 is horizontally arranged at the discharge port of the storage slideway 6, and positioning side plates 8a are arranged on both sides of the feeding slideway 8. In this way, when the hexagonal bar stock enters the feeding slideway 8, it is placed longitudinally, and the two vertical side surfaces on the hexagonal bar stock are respectively opposite to the two positioning side plates 8a on the feeding slideway 8. When the hexagonal bar stock falls onto the feeding slideway 8, circumferential positioning is formed and it slides while maintaining the circumferential positioning state in the feeding slideway 8. Therefore, by setting this feeding device on the machine tool, no matter what circumferential angle the hexagonal bar stock is in the storage slideway 6, it can achieve automatic circumferential positioning after sliding out of the storage slideway 6 and entering the feeding slideway 8.

[0060] On the positioning member 10, since the two positioning plates 10a can be respectively opposite to the discharge ends of the two positioning side plates 8a at the same time, when the hexagonal bar stock slides out of the feeding slideway 8 and enters the positioning groove 10b, the positioning plates 10a and the positioning side plates 8a produce the same positioning effect, enabling the workpiece 1 to move from the feeding slideway 8 to the positioning member 10 while maintaining the same circumferential positioning state; during the process of the positioning member 10 driving the hexagonal bar stock to move and the process of the hexagonal bar stock disengaging from the positioning member 10, the two positioning plates 10a of the positioning member 10 always have a circumferential positioning effect on the hexagonal bar stock, preventing the hexagonal bar stock from rotating during the movement and enabling the workpiece 1 to always maintain the same circumferential positioning state for feeding. The feeding device of this machine tool can position and feed polygonal bar stocks such as hexagonal bar stocks, thereby enabling automatic feeding of polygonal bar stocks. The settings of the positioning member 10, the positioning cylinder 13, and the receiving cylinder 15 enable the hexagonal bar stock to continue to maintain the circumferential positioning state during the feeding process after automatic circumferential positioning, enabling automatic feeding of the hexagonal bar stock after automatic positioning. The feeding device of this machine tool can perform automatic circumferential positioning on polygonal bar stocks such as hexagonal bar stocks and can perform continuous circumferential positioning and feeding on polygonal bar stocks, thereby enabling automatic feeding of polygonal bar stocks and ensuring a stable and smooth feeding process.

[0061] Embodiment 2

[0062] In the structure of the first embodiment, the material receiving cylinder 15 and the material ejecting member 16 are omitted. The positioning cylinder 13 is not fixed to the main spindle box 3. The positioning cylinder 13 and the material pushing member 14 are installed on the carriage assembly 4. The carriage assembly 4 can drive the positioning cylinder 13 to move between the main spindle fixture 5 and the material receiving table 9. The material receiving end of the positioning cylinder 13 is located on the right side, and the material discharging end of the positioning cylinder 13 is located on the left side and can face the main spindle fixture 5. Other structures are the same as those in the first embodiment. To cooperate with the positioning cylinder 13, the positions of other structures are adaptively installed on the outer cover located on the right side of the partition. During machining, after the hexagonal bar stock slides from the feeding chute 8 into the positioning member 10, the carriage assembly 4 moves the positioning cylinder 13 to the material receiving table 9. The flat pushing member 12 moves the positioning member 10 to the notch 13b of the positioning cylinder 13, and the hexagonal bar stock enters the positioning hole 13a. Then, the carriage assembly 4 moves the positioning cylinder 13 to the main spindle fixture 5, and the material pushing member 14 pushes the hexagonal bar stock into the main spindle fixture 5. The main spindle fixture 5 clamps the workpiece 1 to complete the loading. The structure of the second embodiment can also complete automatic positioning through the storage chute 6 and the feeding chute 8, and maintain the circumferential positioning state through the positioning cylinder 13 and the positioning member 10, and can realize automatic loading.

[0063] When the blanking mechanism is not installed, the positioning cylinder 13 and the material pushing member 14 can also be fixed to the outer cover of the machine tool or the machine tool bed 2 so that the positioning hole 13a of the positioning cylinder 13 faces the main spindle fixture 5.

[0064] The Third Embodiment

[0065] In the structure of the second embodiment, the positioning cylinder 13 and the material pushing member 14 are omitted. The structure of the positioning member 10 is different from that of the second embodiment. The positioning member 10 is U-shaped, and the notch of the positioning member 10 is arranged upward. The flat pushing member 12 can drive the positioning member 10 to move between the feeding chute 8 and the main spindle fixture 5. Other structures are the same as those in the second embodiment, and only the installation positions of the devices on the machine tool are adaptively adjusted. A tailstock is provided on the machine tool. During machining, after the hexagonal bar stock slides from the feeding chute 8 into the positioning member 10, the flat pushing member 12 moves the positioning member 10 to the main spindle fixture 5, and the center point of the tailstock pushes the hexagonal bar stock into the main spindle fixture 5. The main spindle fixture 5 clamps the workpiece 1 to complete the loading. The structure of the third embodiment can also complete automatic positioning through the storage chute 6 and the feeding chute 8, and maintain the circumferential positioning state through the positioning member 10, and can realize automatic loading.

[0066] The Fourth Embodiment

[0067] In the structure of the second embodiment, the positioning cylinder 13 and the pusher 14 are omitted. A tailstock is provided on the machine tool. The structure of the positioning member 10 is the same as that of the second embodiment. The positioning member 10 and the receiving table 9 are fixed on the carriage assembly 4. The carriage assembly 4 can drive the positioning member 10 and the receiving table 9. After the positioning member 10 is moved out between the feeding chute 8 and the baffle 9a, the positioning groove 10b of the positioning member 10 is located between the spindle fixture 5 and the tailstock. During machining, after the hexagonal bar stock slides from the feeding chute 8 into the positioning groove 10b of the positioning member 10, the flat pusher 12 moves the positioning member 10 out between the feeding chute 8 and the baffle 9a. Then, the carriage assembly 4 drives the receiving table 9 to align the positioning groove 10b of the positioning member 10 with the spindle fixture 5. The center point of the tailstock pushes the hexagonal bar stock into the spindle fixture 5, and the spindle fixture 5 clamps the workpiece 1 to complete the loading. The structure of the fourth embodiment can also achieve circumferential positioning and feeding through the feeding chute 8 and the positioning member 10, and can achieve automatic loading.

[0068] When the blanking mechanism is not installed, the receiving table 9 can also be fixed on the outer cover of the machine tool. After the positioning member 10 is moved out between the feeding chute 8 and the baffle 9a, the positioning groove 10b of the positioning member 10 is located between the spindle fixture 5 and the tailstock.

[0069] Embodiment Five

[0070] As Figure 7 shown, the structure of the material distribution component 7 is different from that of the first embodiment, and the other structures are the same as those of the first embodiment. Through holes are formed on the bottom surface of the storage chute 6, and the width of the through holes is smaller than the length of the workpiece 1 to ensure that the workpiece 1 will not leak out through the through holes. The material distribution component 7 includes a material distribution runner 7e installed at the through holes. Four material distribution blades are evenly arranged along the circumference on the outer side surface of the material distribution runner 7e. The material distribution runner 7e is connected to a motor. The motor drives the material distribution runner 7e to rotate, and the workpiece 1 is sequentially separated by the four material distribution blades and conveyed to the other side of the material distribution runner 7e.

[0071] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A machine tool feeding device, comprising a feeding chute (8) arranged obliquely, positioning side plates (8a) are arranged on both sides of the feeding chute (8), a receiving table (9) is arranged at the discharging end of the feeding chute (8), and a baffle (9a) opposite to the discharging port of the feeding chute (8) is fixedly connected to the receiving table (9), characterized in that, A positioning member (10) capable of being moved into and out of the space between the feeding slideway (8) and the baffle (9a) is arranged on the material receiving table (9). The positioning member (10) includes two separately arranged positioning plates (10a). A positioning groove (10b) for accommodating the workpiece (1) is formed between the two positioning plates (10a) on the positioning member (10). The two positioning plates (10a) can be respectively opposite to the discharging ends of the two positioning side plates (8a) at the same time. A material blocking member (11) is fixed on the positioning member (10). When the positioning member (10) is moved out of the space between the feeding slideway (8) and the baffle (9a), the material blocking member (11) blocks the discharging port of the feeding slideway (8). When the positioning member (10) is moved into the space between the feeding slideway (8) and the baffle (9a), the material blocking member (11) opens the discharging port of the feeding slideway (8). The machine tool feeding device further includes an inclined storage slideway (6). The feeding end of the feeding slideway (8) is horizontally arranged at the discharging port of the storage slideway (6). A height difference is arranged between the feeding end of the feeding slideway (8) and the discharging end of the storage slideway (6), and the feeding slideway (8) is arranged lower than the storage slideway (6). A material separating assembly (7) capable of separating the workpieces (1) one by one is arranged on the storage slideway (6). The feeding end of the positioning side plate (8a) close to the storage slideway (6) has a connecting portion (8d). The feeding end of the other positioning side plate (8a) has a limiting portion (8e) protruding upward from the connecting portion (8d). The discharging end of the storage slideway (6) is erected on the connecting portion (8d) and forms a rotating space (8f) with the limiting portion (8e). The feeding slideway (8) includes a feeding bottom plate (8b). The two positioning side plates (8a) are respectively fixed on the feeding bottom plate (8b). Positioning slide shafts (8c) are fixed between the two positioning side plates (8a) and the feeding bottom plate (8b). The positioning slide shafts (8c) are fixed on the inner side surfaces of the positioning side plates (8a).

2. The machine tool feeding device according to claim 1, characterized in that, The notch of the positioning groove (10b) is arranged downward. A positioning cylinder (13) is arranged on one side of the material receiving table (9). A positioning hole (13a) which is matched with the outer shape of the workpiece (1) and enables the workpiece (1) to pass through is arranged in the positioning cylinder (13). A notch (13b) is formed on the upper side wall of the feeding end of the positioning cylinder (13) and a gap (13c) is formed on the hole wall surface of the positioning hole (13a). The positioning member (10) can move to the notch (13b) and make the notch of the positioning groove (10b) opposite to the gap (13c). A pushing member (14) capable of pushing the workpiece (1) out of the positioning hole (13a) is arranged outside the feeding end of the positioning cylinder (13).

3. The machine tool feeding device according to claim 1 or 2, characterized in that The positioning member (10) further includes a connecting plate (10c) connected to the upper ends of two positioning plates (10a). A limiting block (10d) is installed in the positioning groove (10b). An adjusting member for adjusting the height of the limiting block (10d) is provided between the limiting block (10d) and the connecting plate (10c). An adjusting structure one for adjusting the distance between the two positioning plates (10a) is provided between one of the positioning plates (10a) and the connecting plate (10c).

4. The machine tool feeding device according to claim 3, characterized in that, A limiting slot (10e) is provided on one of the positioning plates (10a). A limiting protrusion (10f) is provided on the limiting block (10d). The limiting protrusion (10f) is embedded in the limiting slot (10e) and can move up and down in the limiting slot (10e).

5. The machine tool feeding device according to claim 2, characterized in that, The machine tool feeding device further includes a receiving cylinder (15) capable of moving between the positioning cylinder (13) and the machine tool spindle fixture (5). A receiving hole (15a) capable of docking with the positioning hole (13a) is provided on the receiving cylinder (15). The shape of the receiving hole (15a) matches that of the workpiece (1). A material ejecting member (16) capable of ejecting the workpiece (1) out of the receiving hole (15a) is provided outside the receiving cylinder (15).

6. The machine tool feeding device according to claim 1 or 2 or 5, characterized in that, The material storage slideway (6) includes a lower slideway (6a) connected to the feeding slideway (8) and an upper slideway (6b) located above the lower slideway (6a). The discharging end of the upper slideway (6b) is connected to the feeding end of the lower slideway (6a) and there is a height difference between the two.

7. The machine tool feeding device according to claim 1 or 2 or 5, characterized in that, The material distribution assembly (7) includes a cylinder one (7a) and a cylinder two (7b) arranged in sequence along the extending direction of the material storage slideway (6). The cylinder one (7a) is close to the feeding slideway (8). When the piston rods of the cylinder one (7a) and the cylinder two (7b) extend, they can block the workpiece (1) in the material storage slideway (6). When the piston rods of both the cylinder one (7a) and the cylinder two (7b) extend, there is a material distribution space (7c) for placing one workpiece (1) between the piston rods of the cylinder one (7a) and the cylinder two (7b) in the material storage slideway (6). There is a lower slide space (7d) for placing at least one workpiece (1) from the piston rod of the cylinder one (7a) to the edge of the discharging port of the material storage slideway (6) in the material storage slideway (6).

Images