Automatic feeding device for cylindrical rollers

Abstract

The utility model belongs to the technical field of automatic feeding of cylindrical rollers, and discloses an automatic feeding device of cylindrical rollers, which is characterized in that a pushing mechanism is fixedly arranged on a support plate; the pneumatic feeding mechanism is arranged on the left side of the rear portion of the first bearing groove, the first bearing groove and the second bearing groove correspond to each other in a front-back flush mode, and a gap is reserved between the first bearing groove and the second bearing groove. The adjustable conveying groove is fixedly formed in the upper portion of the rear side of the pneumatic feeding mechanism, the position of the adjustable conveying groove corresponds to the position of the second bearing groove in an up-down mode, and the adjustable conveying groove is used for conveying the cylindrical rollers to a machining station of a numerical control machining center. The automatic feeding device has the advantages that automatic feeding of large cylindrical rollers is achieved, the automatic matching degree of feeding of the cylindrical rollers and a numerical control machining center is improved, and the automatic feeding device can adapt to automatic conveying of cylindrical roller blanks with different lengths.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic feeding of cylindrical rollers, and particularly relates to an automatic feeding device for cylindrical rollers. Background Art

[0002] As a rolling element, the cylindrical roller is the core of a bearing component and has high process requirements in manufacturing. Due to characteristics such as linear contact with the raceway, large radial load capacity, and strong load-bearing capacity, cylindrical rollers are widely used in the bearing field. The main processes of cylindrical roller processing include raw material preparation, pre-processing, finish machining, and heat treatment. Among them, raw material preparation: The raw materials of cylindrical rollers are usually cylindrical metal materials, such as steel. Before processing, it is necessary to inspect and screen the raw materials to ensure that the material quality meets the standard requirements. Among them, pre-processing uses processes such as sawing, turning, and grinding to make the raw materials meet the required size and surface roughness. Among them, finish machining is the core step and also the most complex part of cylindrical roller processing, mainly through processes such as grinding, sanding, and polishing to further improve the dimensional accuracy and surface quality of the rollers. Among them, heat treatment is to improve the material properties of cylindrical rollers. Usually, quenching and tempering processes are used to make the rollers have high hardness and wear resistance.

[0003] In the pre-processing link of cylindrical rollers, the turning and grinding of cylindrical rollers are completed at one time in an automated CNC machining center. In actual application scenarios, it is necessary to transport the cylindrical roller blanks cut into sections to the processing stations of the CNC machining center. At present, most of the automatic feeding devices for cylindrical rollers use a vibrating bowl feeder in combination with a chain conveyor to achieve automatic feeding of cylindrical rollers. For example, the patent application number is CN202010437499.8, and the invention name is an automatic feeding device for cylindrical rollers. In the prior art, the main technical problems of the automatic feeding device for cylindrical rollers are as follows: 1. The cylindrical roller feeding device disclosed in the patent application number CN202010437499.8, with the invention name of an automatic feeding device for cylindrical rollers, can only be used for cylindrical rollers with relatively small specifications and dimensions, and is not applicable to large cylindrical rollers with larger specifications and dimensions (because the self-weight of large cylindrical rollers is relatively large, and the vibration amplitude of the vibrating bowl feeder is difficult to vibrate and transport large cylindrical rollers regularly). 2. In the prior art, the inclined conveyor trough of the automatic feeding device for cylindrical rollers, which is used for gravity automatic feeding of cylindrical rollers, has a non-adjustable width and cannot meet the transportation of cylindrical rollers with different diameters. Based on the technical problems in the prior art, the inventor has developed an automatic feeding device for cylindrical rollers, which can achieve efficient feeding of cylindrical rollers and at the same time achieve efficient cooperation with an automated CNC machining center. Content of the Utility Model

[0004] To solve the above technical problems, the present utility model provides an automatic feeding device for cylindrical rollers, which has a simple structure, is scientifically and reasonably designed, and can realize continuous automatic feeding operation of cylindrical rollers. The present utility model can solve the problem of automatic feeding and conveying of large cylindrical rollers in the prior art, and at the same time solve the problem that the width of the inclined conveying groove for gravity automatic conveying of cylindrical rollers in the automatic feeding device of cylindrical rollers in the prior art cannot be adjusted and cannot meet the conveying requirements of cylindrical rollers with different diameters.

[0005] The technical solution adopted by the present utility model is as follows: an automatic feeding device for cylindrical rollers, comprising a chain conveyor, cylindrical rollers, and a support plate. The chain conveyor is arranged at the bottom position of the pushing mechanism, and the chain conveyor is used to convey the sawn segmental cylindrical rollers to the bottom position of the pushing mechanism; the cylindrical rollers are placed on the chain conveyor, and the support plates are symmetrically and fixedly arranged on the right side plate of the chain conveyor; the pushing mechanism is fixedly arranged on the support plate, and the pushing mechanism is used to push the cylindrical rollers into the second receiving groove through the first receiving groove; the receiving groove is divided into a first receiving groove and a second receiving groove. The first receiving groove is fixedly arranged at the rear bottom position of the pushing mechanism, and a connecting body is fixedly arranged on the left side of the first receiving groove. The rear side surface of the connecting body is fixedly connected to the front side surface of the rear part of the pneumatic feeding mechanism. The second receiving groove is fixedly arranged at the right side position of the pneumatic feeding mechanism, and the second receiving groove realizes its own up and down lifting under the lifting action of the pneumatic feeding mechanism, so as to realize the lifting feeding of the cylindrical rollers; the pneumatic feeding mechanism is arranged at the rear left side position of the first receiving groove, the first receiving groove and the second receiving groove are flush with each other front and back, and a gap is reserved between the first receiving groove and the second receiving groove; the adjustable conveying groove is fixedly arranged at the upper rear side position of the pneumatic feeding mechanism, and the adjustable conveying groove corresponds to the second receiving groove in the up and down direction. The adjustable conveying groove is used to convey the cylindrical rollers to the processing station of the numerical control machining center.

[0006] The pushing mechanism includes a support plate, which is a trapezoidal plate. The support plates are symmetrically arranged left and right to form a cavity structure. A U-shaped opening is provided at the middle position of the bottom of the support plates symmetrically arranged left and right. The U-shaped opening is an opening that penetrates the support plate body. The limit bottom plates are symmetrically arranged front and back on both sides of the U-shaped opening between the support plates. The two limit bottom plates symmetrically arranged front and back form a space for limiting and guiding the cylindrical rollers. The connecting plate is fixedly arranged at the upper front position of the support plates symmetrically arranged left and right, and the connecting plate is used for fixedly connecting the support plates symmetrically arranged left and right. The stop rod is fixedly arranged at the lower rear position of the connecting plate, and both ends of the stop rod are fixedly connected to the support plates. The discharge chute is fixedly arranged inside the rear sides of the left and right support plates. The discharge chute is a hollow structure formed by symmetrically combining two plates. The discharge chute is fixed at both ends of the rear limit bottom plate. A convex edge is fixedly arranged on the inner bottom edge of the discharge chute, and the convex edge is used for rolling support of the cylindrical roller. The connecting rod is installed at the upper rear end position of the discharge chute. The first set screw handle and the second set screw handle respectively pass through the upper body at the rear end of the chute to tighten and fix the connecting rod. The fixed connecting rod is fixedly arranged at the upper rear position of the support plate, and both ends of the fixed connecting rod are fixedly connected to the inner wall of the support plate. The floating bracket is fixedly arranged at the upper rear end position of the left and right support plates. The floating bracket is used for floating support of the double-rod cylinder. The double-rod cylinder is fixedly arranged at the upper position of the floating bracket. Magnetic switches are symmetrically arranged in the upper groove of the double-rod cylinder, and the magnetic switches are used for detecting the stroke position of the double-rod cylinder. A cushion block is fixedly arranged at the front end of the telescopic rod of the double-rod cylinder, and the cushion block is fixedly connected to the upper rear side of the push frame. The push claw includes a push claw body, which is U-shaped. A fixing hole is opened at the upper position near the rear side of the push claw body. A rotating hole is opened at the middle position near the lower part of the push claw body. A circular protrusion is fixedly arranged on the right surface of the rotating hole. The rotating hole penetrates the circular protrusion. A push groove is opened at the middle position of the bottom of the push claw body. The push groove is a U-shaped groove with an open bottom. A convex platform is opened at the middle position of the front side of the push claw body. The circular protrusion of the push claw body is installed in the inner ring of the bearing. The push claw body and the bearing are symmetrically installed on the rotating shaft. The outer side surface of the push claw body is parallel to the inner side surface of the support plate and a gap is reserved. The rotating shaft passes through the outside of the left and right support plates and is fixed by an end cover. The push frame is fixedly installed at both ends of the through rod. The through rod on the inner side of the push frame passes through the fixing holes of the symmetrically installed push claw bodies and is fixed to the through rod. The bottom of the push claw body extends to the upper position of the limit bottom plate. The proximity switch mounting hole is opened at the middle position of the bottom of the proximity switch mounting plate. The proximity switch mounting plate is fixedly installed at the inner side position of the U-shaped opening of the right support plate. The proximity switch mounting hole is a through hole that penetrates the right support plate. The proximity switch is fixedly installed in the proximity switch mounting hole, and the proximity switch is used for sensing the conveying displacement position of the cylindrical roller.

[0007] The limiting bottom plate includes a limiting bottom plate body, which is rectangular in shape. One side of the limiting bottom plate body is provided with an inclined surface; the inclined surface of the limiting bottom plate body faces the middle line direction of the U-shaped opening, and both ends of the limiting bottom plate body are fixedly connected to the support plates.

[0008] The receiving groove includes a bottom plate, which is inclined with the front higher than the rear. The bottoms of the vertical fixing plate and the adjusting plate are inclined. The vertical fixing plate is fixedly arranged at the left end position of the bottom plate, and the adjusting plate is placed in a fitting manner at the corresponding position of the vertical fixing plate; adjustment holes are symmetrically opened on the side surface of the upper part of the adjusting plate. The left end of the adjusting rod is fixedly connected to the upper part of the vertical fixing plate. The right end of the adjusting rod passes through the adjustment hole in the upper part of the adjusting plate, and the limiting body is sleeved on the adjusting rod inside the adjusting plate; external threads are provided on the adjusting rod, and screw holes are symmetrically arranged on the side surface of the limiting body. The right end of the adjusting rod is fixed and limited at a specific position by the cooperation of the nut and the limiting body to fix the adjusting plate.

[0009] The floating bracket includes a cross plate, which is horizontally and fixedly arranged at the upper rear position of the left and right support plates. Vertical plates are symmetrically arranged at the middle upper position of the cross plate. A bearing is fixedly installed at the center of the side surface of the vertical plate. A connecting rod is horizontally fixedly installed in the inner ring of the bearing of the vertical plate. A fixing body is fixedly installed at the middle position of the connecting rod, and the fixing body is used for fixedly installing a double-rod cylinder.

[0010] The pneumatic feeding mechanism includes a cylinder support body, which is fixedly arranged at the right side position of the first receiving groove, and a matching baffle is fixedly arranged at the rear side position of the cylinder support body; a guide rod type rodless cylinder is vertically and fixedly arranged at the right side position of the cylinder support body. A slider is arranged on the guide rod type rodless cylinder, and the slider moves up and down on the guide rod type rodless cylinder; a slide rail is fixedly arranged at the rear side position of the guide rod type rodless cylinder, and the slide rail is fixedly connected to the right side surface of the cylinder support body; a slide rail moving body is slidably installed on the slide rail; a pair of magnetic switch groups are symmetrically arranged in the grooves on the front and rear side surfaces of the guide rod type rodless cylinder, and the magnetic switch group one is used for detecting the stroke position of the guide rod type rodless cylinder; buffer body fixing bodies are symmetrically fixedly arranged at the upper and lower ends of the right side of the slide rail. A buffer body penetrates and is fixed at the center position of the buffer body fixing body. A buffer rod is fixedly arranged at the center position of the inner end of the buffer body, and a rubber head is fixedly arranged at the inner end of the buffer rod; a proximity switch one is fixedly arranged at the front side near the middle position of the bottom of the matching baffle, and the proximity switch one is used for inductively detecting the position signal of the cylindrical roller.

[0011] The receiving groove is fixedly arranged on the slider of the guide rod type rodless cylinder and the slide rail moving body, and a gap is reserved between the receiving groove and the matching baffle; the proximity switch one is arranged in a front-back corresponding manner with the receiving groove.

[0012] The adjustable conveying trough includes an inclined support plate which is fixedly arranged with the front higher than the rear on the upper right side of the matching baffle. The fixed plate is vertically fixed at the upper left end of the inclined support plate. The adjusting plates are symmetrically arranged on the right side of the fixed plate. Two groups of bumps are symmetrically arranged on the upper end faces of the fixed plate and the adjusting plates, with two bumps in a group. Each bump is provided with an adjusting hole. The left end of the adjusting rod is fixedly installed in the adjusting hole of the bump on the fixed plate. The right end of the adjusting rod passes through the adjusting hole of the bump on the adjusting plate and extends to the right side of the adjusting plate. The limiting block is installed on the adjusting rod at the left side of the adjusting plate. The adjusting rod is provided with an external thread, and the central position of the limiting block is provided with a threaded hole. A nut is installed at the right end of the adjusting rod; The connecting plates are symmetrically and fixedly arranged at the inner rear ends of the fixed plate and the adjusting plate. A supporting convex edge is fixedly arranged at the inner bottom edge of the connecting plate; The opposed switch support plate is fixedly arranged at the outer front end of the connecting plate. A square hole is opened on the side of the connecting plate corresponding to the opposed switch support plate. The opposed switch is fixedly arranged on the opposed switch support plate and is symmetrically arranged. The reinforcing adjusting plate is fixedly arranged at the bottom near the rear end of the left connecting plate and extends to the right side of the right connecting plate. A notch is opened at the upper right end of the reinforcing adjusting plate. The left and right connecting plates are fixedly connected into one body by passing a screw through the notch on the reinforcing adjusting plate and tightening and fixing it on the screw with a nut.

[0013] The magnetic switch group on the double-rod cylinder is fixedly connected to the PLC control module through a signal transmission line. The proximity switch is fixedly connected to the PLC control module through a signal transmission line; The magnetic switch group one is fixedly connected to the PLC control module through a signal transmission line. The proximity switch one is fixedly connected to the PLC control module through a signal transmission line; The opposed switch is fixedly connected to the PLC control module through a signal transmission line.

[0014] The working process of this automatic feeding device for cylindrical rollers: I. The process of pushing out the cylindrical rollers: Place the sawn cylindrical rollers on the chain conveyor. As the chain conveyor rotates, the cylindrical rollers are transported to the lower position of the pushing mechanism. At this time, the cylindrical rollers correspond to the left U-shaped opening of the support plate (at this time, the left and right pushing claws are in the initial position, that is, the pushing groove of the pushing claw body corresponds to the middle position between the front and rear limit plates). At the same time, use the inclined surfaces of the symmetrically arranged front and rear limit bottom plates to limit the cylindrical rollers to the middle position of the symmetrically arranged front and rear limit bottom plates (at this time, the cylindrical rollers correspond to the pushing groove of the pushing claw body). As the cylindrical rollers continue to move to the right, when the proximity switch senses the position signal of the cylindrical rollers, the proximity switch transmits the sensed signal to the PLC control module. The PLC control module simultaneously sends a control instruction for the retraction action to the double-rod cylinder of the pushing mechanism. The double-rod cylinder starts the retraction action, pushing the backing plate and the pushing frame to move backward. Driven by the through rod, the pushing claws rotate and swing backward around the rotation axis through the bearings (when the magnetic switch group I set on the double-rod cylinder detects the retraction limit position of the double-rod cylinder, the double-rod cylinder starts the extension action). At this time, the pushing grooves of the left and right pushing claws push the cylindrical rollers backward and roll them to the receiving groove I through the discharge chute (at this time, the double-rod cylinder returns to the initial stroke, that is, the initial position of the left and right pushing claws). II. The feeding process of the cylindrical rollers: When the cylindrical rollers roll onto the receiving groove I, use the corresponding docking structure between the receiving groove II and the receiving groove I, and at the same time, use the inclined setting of the bottom plate of the receiving groove II. The cylindrical rollers continue to roll into the receiving groove II by their own weight. When the proximity switch I senses the position signal of the cylindrical rollers, the proximity switch I transmits the sensed position signal to the PLC control module. The PLC control module sends a control instruction for lifting to the guide rod type rodless cylinder. The guide rod type rodless cylinder drives the slider and the slide rail moving body to move upward, thereby driving the receiving groove II to rise (using the close fit between the receiving groove II and the mating baffle during the rising process). When the guide rod type rodless cylinder drives the receiving groove II to rise to the upper limit position, the guide rod type rodless cylinder stops for one second. At this time, the cylindrical rollers roll from the receiving groove II onto the adjustable conveying groove and roll through the conveying channel formed by the inclined support plate, the fixing plate and the adjusting plate to the symmetrically arranged connecting plates. Using the supporting effect of the supporting convex edges on the cylindrical rollers, they continue to roll on the symmetrically arranged connecting plates. When the cylindrical rollers roll to the position of the opposed switch, the opposed switch senses the position signal of the cylindrical rollers and transmits the cylindrical roller position signal to the PLC control module. The PLC control module sends a control instruction to start the loading port to the loading port of the CNC machining center, thereby transporting the cylindrical rollers to the machining working position of the CNC machining center.III. Adjustment of the conveying widths of the receiving trough and the adjustable conveying trough: 1. Adjustment of the conveying width of the receiving trough: When the length of the cylindrical roller blank increases and the conveying width of the receiving trough needs to be increased, loosen the upper nut at the right end of the adjusting rod, then move the adjusting plate to the right side of the bottom plate, and finally adjust the position of the adjusting limit body and tighten the nut, and make an adaptive adjustment according to the sawing length of the cylindrical roller blank; when it is necessary to reduce the conveying width of the receiving trough, just operate the opposite actions above. 2. Adjustment of the conveying width of the adjustable conveying trough: When the length of the cylindrical roller blank increases and the conveying width of the adjustable conveying trough needs to be increased, first loosen the nut at the right end of the adjusting rod, and at the same time loosen the screw and nut installed at the right side position of the right connecting plate on the trough opening; then move the adjusting plate to the right side of the inclined supporting plate, and at the same time drive the right connecting plate to move the same distance to the right along the strengthening adjusting plate. Finally, tighten the nut at the right end of the adjusting rod so that the limiting block is close to the left side surface of the convex block on the right adjusting plate, and at the same time install the screw and nut on the trough opening of the strengthening adjusting plate at the position of the right connecting plate, and tighten the screw and nut; if you want to reduce the conveying width of the adjustable conveying trough, just operate the opposite actions above.

[0015] The beneficial effects of the present utility model are as follows: Through the settings of the chain plate conveyor, the pushing mechanism, the first receiving trough, the second receiving trough, the pneumatic feeding mechanism and the adjustable conveying trough, the automatic feeding of larger cylindrical rollers is realized, the automation cooperation degree of the cylindrical roller feeding and the numerical control machining center is improved, and the automatic conveying of cylindrical roller blanks with different lengths can be adapted. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 for the present utility model Figure 1 is a schematic structural diagram in the right direction;

[0018] Figure 3 is a schematic structural diagram of the pushing mechanism of the present utility model;

[0019] Figure 4 for the present utility model Figure 3 is a partial enlarged view of part A in the present utility model;

[0020] Figure 5 for the present utility model Figure 3 is a partial enlarged view of part B in the present utility model;

[0021] Figure 6 is a schematic structural diagram of the pushing claw of the present utility model;

[0022] Figure 7 is a schematic structural diagram of the pneumatic feeding mechanism of the present utility model;

[0023] Figure 8For the present utility model Figure 7 Partial enlarged side view of part C in it;

[0024] Figure 9 For the present utility model Figure 7 Partial enlarged top view of part D in it;

[0025] Markings in the figure: 1, chain plate conveyor; 2, cylindrical roller; 3, support plate; 4, material pushing mechanism; 41, support plate; 42, U-shaped opening; 43, limit bottom plate; 431, limit bottom plate body; 432, inclined surface; 44, connecting plate; 45, retaining rod; 46, discharge chute; 47, convex edge; 48, connecting rod; 49, jackscrew handle one; 410, jackscrew handle two; 411, fixed connecting rod; 412, floating bracket; 4121, cross plate; 4122, vertical plate; 4123, connecting rod; 4124, bearing; 4125, fixed body; 413, double-rod cylinder; 414, magnetic switch group; 415, backing plate; 416, pushing frame; 417, through rod; 418, pushing claw; 4181, pushing claw body; 4182, fixing hole; 4183, rotating hole; 4184, circular protrusion; 4185, pushing groove; 4186, convex platform; 419, rotating shaft; 420, bearing; 421, end cover; 422, proximity switch mounting plate; 423, proximity switch mounting hole; 424, proximity switch; 5, receiving groove; 51, bottom plate; 52, vertical fixing plate; 53, adjusting plate; 54, adjusting rod; 55, adjusting hole; 56, limiting body; 6, receiving groove one; 7, receiving groove two; 8, pneumatic feeding mechanism; 81, cylinder support body; 82, mating baffle; 83, guide rod type rodless cylinder; 84, slider; 85, slide rail; 86, slide rail moving body; 87, magnetic switch group one; 88, buffer fixing body; 89, buffer body; 810, buffer rod; 811, rubber head; 812, proximity switch one; 9, adjustable conveying chute; 91, inclined support plate; 92, fixing plate; 93, adjusting plate; 94, convex block; 95, adjusting hole; 96, adjusting rod; 97, limiting block; 98, connecting plate; 99, supporting convex edge; 910, opposed switch support plate; 911, square hole; 912, opposed switch; 913, strengthening adjusting plate; 914, notch; 10, connecting body. Detailed implementation manners

[0026] The following further elaborates on the detailed implementation manners of the present utility model with reference to the accompanying drawings.

[0027] The present utility model provides an automatic feeding device for cylindrical rollers:

[0028] As Figure 1As shown in the figure, the chain plate conveyor 1 is arranged at the bottom of the pusher mechanism 4. The chain plate conveyor 1 is used to convey the sawn cylindrical rollers 2 to the bottom position of the pusher mechanism 4. Through the arrangement of the chain plate conveyor 1, the sawn cylindrical roller blanks 2 can be conveyed to the bottom position of the pusher mechanism 4, so that the cylindrical rollers 2 can be pushed into the receiving groove 1 6 and the receiving groove 2 7 by the pusher mechanism 4, realizing the pushing and transfer of the cylindrical rollers 3.

[0029] As Figure 1-5 shown, the support plate 41 is a trapezoidal plate. The support plates 41 are symmetrically arranged left and right to form a cavity structure. The U-shaped opening 42 is opened at the middle position of the bottom of the support plates 41 that are symmetrically arranged left and right. The U-shaped opening 42 is an opening that penetrates the main body of the support plate 41. Through the left and right symmetrically arranged support plates 41, a cavity is formed for the push claw 418 to swing rotationally around the rotation axis 419 through the bearing 420. The arrangement of the U-shaped opening 42 enables the cylindrical roller 2 conveyed by the chain conveyor 1 to smoothly enter the push groove 4185 of the push claw 418 through the U-shaped opening 42, realizing that the push claw 408 rotates and swings backward under the retraction action of the double-rod cylinder 413 when the cylindrical roller 2 is involved.

[0030] As Figure 1-4 shown, the limit bottom plates 43 are symmetrically arranged front and back on both sides of the U-shaped opening 42 between the support plates 41. The two limit bottom plates 43 symmetrically arranged front and back form a space for limiting and guiding the cylindrical roller 2. The limit bottom plate 43 includes a limit bottom plate body 431. The limit bottom plate body 431 is rectangular. An inclined surface 432 is arranged on one side of the limit bottom plate body 431. The inclined surface of the limit bottom plate body 431 faces the midline direction of the U-shaped opening 42, and both ends of the limit bottom plate body 431 are fixedly connected to the support plate 41. Through the arrangement of the front and back symmetric limit bottom plates 43, using the inclined surfaces of the two front and back symmetric limit bottom plates 43, on the one hand, it plays a role in limiting the cylindrical roller 2; on the other hand, it plays a role in guiding the cylindrical roller 2 under the rotational cooperation of the chain conveyor 1.

[0031] As Figure 3-5 shown, the discharge chute 46 is fixedly arranged inside the rear sides of the left and right support plates 41. The discharge chute 46 is a hollow structure formed by symmetrically combining two plates. The discharge chute 46 is fixed at both ends of the rear limit bottom plate 43. A convex edge 47 is fixedly arranged on the inner bottom edge of the discharge chute 46. The convex edge 47 is used for the rolling support of the cylindrical roller 2. Through the arrangement of the convex edge 47 on the inner bottom plate of the discharge chute 46, on the one hand, it can play a role in guiding the cylindrical roller 2 during the rolling process; on the other hand, it plays a role in supporting the cylindrical roller 2 during the rolling process.

[0032] As Figure 3 、 Figure 4 、Figure 5 As shown, the floating bracket 412 is used to floatingly support the double-rod cylinder 413. The double-rod cylinder 413 is fixedly arranged at the upper position of the floating bracket 412. The floating bracket 412 includes a horizontal plate 4121 which is horizontally and fixedly arranged at the upper rear position of the left and right support plates 41. Vertical plates 4122 are symmetrically arranged at the upper middle position of the horizontal plate 4121. A bearing 4124 is fixedly installed at the center of the side surface of the vertical plate 4122. A connecting rod 4123 is horizontally and fixedly installed in the inner ring of the bearing 4124 of the vertical plate 4122. A fixing body 4125 is fixedly installed at the middle position of the connecting rod 4123. The fixing body 4125 is used to fixedly install the double-rod cylinder 41. Through the floating support function of the horizontal plate 4121, vertical plates 4122, bearing 4124, connecting rod 4123, and fixing body 4125 in the floating bracket 412, on the one hand, the followability of the telescopic movement of the double-rod cylinder 41 is improved, and on the other hand, the flexibility of the rotational swing of the push claw 418 is improved.

[0033] As Figure 1 or Figure 2 shown, the pneumatic feeding mechanism 8 is arranged at the rear left position of the first receiving groove 6. The first receiving groove 6 and the second receiving groove 7 are flush with each other front and back, and there is a gap reserved between the first receiving groove 6 and the second receiving groove 7. Through the gap reserved between the first receiving groove 6 and the second receiving groove 7, on the one hand, it is ensured that the cylindrical roller 2 can pass through the first receiving groove 6 and the second receiving groove 7 due to their flush corresponding arrangement, ensuring that the cylindrical roller 2 smoothly rolls through the first receiving groove 6 and enters the second receiving groove 7; on the other hand, it can ensure that the second receiving groove 7 can move up and down under the drive of the pneumatic feeding mechanism 8.

[0034] As Figure 1 、 2 、7 shown, the adjustable conveying groove 9 is fixedly arranged at the rear upper position of the pneumatic feeding mechanism 8. The adjustable conveying groove 9 and the second receiving groove 7 are in an up-and-down corresponding position. Through the arrangement of the adjustable conveying groove 9, under the limiting cooperation of the guide-rod type rodless cylinder 83 and the second receiving groove 7 with the baffle 82, the cylindrical roller 2 is conveyed to the machining station of the CNC machining center.

[0035] As Figure 1 、 2, as shown in FIGS. 6 and 7, the receiving groove 5 includes a bottom plate 51 which is inclined with the front higher than the rear. The bottoms of the vertical fixing plate 52 and the adjusting plate 53 are inclined. The vertical fixing plate 52 is fixedly arranged at the left end position of the bottom plate 51, and the adjusting plate 53 is placed in contact with the corresponding position of the vertical fixing plate 52. Adjusting holes 55 are symmetrically formed in the upper side of the adjusting plate 53. The left end of the adjusting rod 54 is fixedly connected to the upper part of the vertical fixing plate 52. The right end of the adjusting rod 54 passes through the adjusting hole 55 in the upper part of the adjusting plate 53, and the limiting body 56 is sleeved on the adjusting rod 54 inside the adjusting plate 53. External threads are provided on the adjusting rod 54, and screw holes are symmetrically arranged on the side of the limiting body 56. The right end of the adjusting rod 54 fixes and limits the adjusting plate 53 at a specific position through the cooperation of the nut and the limiting body 56. Through the settings of the bottom plate 51, the vertical fixing plate 52, the adjusting plate 53, the adjusting rod 54, the adjusting hole 55, the limiting body 56 and the nut, the conveying width of the first receiving groove 6 and the second receiving groove 7 is adjusted to improve the adaptability to cylindrical roller 2 blanks of different lengths.

[0036] As Figure 7 shown, the pneumatic feeding mechanism 8 includes a cylinder support body 81 which is fixedly arranged at the right side position of the first receiving groove 6, and the cooperating baffle 82 is fixedly arranged at the rear side position of the cylinder support body 81. A rodless cylinder 83 is vertically and fixedly arranged at the right side position of the cylinder support body 81. A slider 84 is arranged on the rodless cylinder 83 and moves up and down on the rodless cylinder 83. A slide rail 85 is fixedly arranged at the rear side position of the rodless cylinder 83 and is fixedly connected to the right side surface of the cylinder support body 81. A slide rail moving body 86 is slidably installed on the slide rail 85. A first magnetic switch group 87 is symmetrically arranged in the grooves on the front and rear side surfaces of the rodless cylinder 83, and the first magnetic switch group 87 is used to detect the stroke position of the rodless cylinder 83. Buffer fixed bodies 88 are symmetrically and fixedly arranged at the right end positions of the upper and lower sides of the slide rail 85. A buffer body 89 is fixedly penetrated through the center position of the buffer fixed body 88. A buffer rod 810 is fixedly arranged at the center position of the inner end of the buffer body 89, and a rubber head 811 is fixedly arranged at the inner end of the buffer rod 810. A first proximity switch 812 is fixedly arranged at the front side near the middle position of the bottom of the cooperating baffle 82, and the first proximity switch 812 is used to sense and detect the position signal of the cylindrical roller 2. Through the setting of the pneumatic feeding mechanism 8, the cylindrical roller 2 in the second receiving groove 7 can be automatically lifted to the front end position of the adjustable conveying groove 9 to realize the linkage type automatic feeding of the cylindrical roller 2.

[0037] As Figure 7As shown in FIGS. 8 or 9, the adjustable conveying trough 9 includes an inclined support plate 91, which is fixedly arranged at the upper right position of the mating baffle 82 with the front end higher and the rear end lower. The fixing plate 92 is vertically fixed at the upper left end position of the inclined support plate 91. The adjusting plates 93 are symmetrically arranged on the right side of the fixing plate 92. Two groups of bumps 94 are symmetrically arranged on the upper end faces of the fixing plate 92 and the adjusting plates 93. Two bumps 94 form a group, and an adjusting hole 95 is provided on each bump 94. The left end of the adjusting rod 96 is fixedly installed in the adjusting hole 95 of the bump 94 on the fixing plate 92. The right end of the adjusting rod 96 passes through the adjusting hole 95 of the bump 94 on the adjusting plate 93 and extends to the right side position of the adjusting plate 93. The limiting block 97 is installed on the adjusting rod 96 at the left side position of the adjusting plate 93. External threads are provided on the adjusting rod 96, and a threaded hole is provided at the central position of the limiting block 97. A nut is installed at the right end of the adjusting rod 96. The connecting plates 98 are symmetrically and fixedly arranged at the inner rear positions of the fixing plate 92 and the adjusting plates 93. A supporting convex edge 99 is fixedly arranged at the inner bottom edge of the connecting plates 98. The opposed switch support plate 910 is fixedly arranged at the outer front position of the connecting plates 98. A square hole 911 is provided on the side surface of the connecting plates 98 corresponding to the opposed switch support plate 910. The opposed switch 912 is fixedly arranged on the opposed switch support plate 910. The opposed switches 912 are symmetrically arranged. The strengthening adjusting plate 913 is fixedly arranged at the bottom position near the rear end of the left connecting plate 98, and the strengthening adjusting plate 913 extends to the right side position of the right connecting plate 98. A notch 914 is provided at the upper right end of the strengthening adjusting plate 913. By passing a screw through the notch 914 on the strengthening adjusting plate 913 and tightening and fixing it on the screw with a nut, the rear ends of the left and right connecting plates 98 are fixedly connected into one body. Through the setting of the adjustable conveying trough 9 as described above, on the one hand, the automatic conveying of the cylindrical rollers 2 is realized. At the same time, by using the setting of the opposed switch 912, automatic linkage opening and closing with the feeding port of the CNC machining center can be achieved, and the cylindrical rollers 2 can be automatically conveyed to the machining station of the CNC machining center. On the other hand, the conveying width of the adjustable conveying trough 9 can be adjusted to adapt to the conveying of cylindrical roller blanks 2 with different lengths.

[0038] As Figure 1-9As shown in the figure, the working process of this automatic feeding device for cylindrical rollers is as follows: I. The process of pushing out the cylindrical rollers: Place the sawn cylindrical rollers 2 on the chain conveyor 1. As the chain conveyor 1 rotates, the cylindrical rollers 2 are transported to the lower position of the pushing mechanism 4. At this time, the cylindrical rollers 2 correspond to the left U-shaped opening 42 of the support plate 41 (at this time, the left and right push claws 418 are in the initial position, that is, the pushing groove 4185 of the push claw body 4181 corresponds to the middle position between the front and rear limit plates 43). At the same time, use the inclined surfaces 432 of the front and rear symmetrically arranged limit bottom plates 43 to limit the cylindrical rollers 2 to the middle position of the front and rear symmetrically arranged limit bottom plates 43 (at this time, the cylindrical rollers 2 correspond to the pushing groove 4185 of the push claw body 4181). As the cylindrical rollers continue to move to the right, when the proximity switch 424 senses the position signal of the cylindrical rollers 2, the proximity switch 424 transmits the sensed signal to the PLC control module. The PLC control module simultaneously sends a control instruction for the retraction action to the double-rod cylinder 413 of the pushing mechanism 4. The double-rod cylinder 413 starts the retraction action, pushing the backing plate 415 and the pushing frame 416 to move backward. Driven by the through rod 417, the push claws 418 rotate and swing backward around the rotation axis 419 through the bearing 420 (at this time, when the magnetic switch group 87 on the double-rod cylinder 413 detects the retraction limit position of the double-rod cylinder 413, the double-rod cylinder 413 starts the extension action). At this time, the pushing grooves 4185 of the left and right push claws 418 push the cylindrical rollers 2 backward and roll them to the receiving groove 6 through the discharge chute 46 (at this time, the double-rod cylinder 413 returns to the initial stroke, that is, the initial position of the left and right push claws 418).II. Feeding process of cylindrical rollers: When the cylindrical roller 2 rolls onto the first receiving groove 6, by using the corresponding docking structure between the second receiving groove 7 and the first receiving groove 6, and simultaneously by virtue of the inclined setting of the bottom plate 51 of the second receiving groove 7, the cylindrical roller 2 continues to roll into the second receiving groove 7 by its own weight. When the first proximity switch 812 senses the position signal of the cylindrical roller 2, the first proximity switch 812 transmits the sensed position signal to the PLC control module. The PLC control module sends a lifting control instruction to the guide rod type rodless cylinder 83. The guide rod type rodless cylinder 83 drives the slider 84 and the slide rail moving body 86 to move upward, thereby driving the second receiving groove 7 to rise (by means of the close fit between the second receiving groove 7 and the mating baffle 82 during the rising process). When the guide rod type rodless cylinder 83 drives the second receiving groove 7 to rise to the upper limit position, the guide rod type rodless cylinder 83 stops for one second with a time delay. At this time, the cylindrical roller 2 rolls from the second receiving groove 7 onto the adjustable conveying groove 9 and rolls through the conveying channel formed by the inclined support plate 91, the fixing plate 92 and the adjusting plate 93 onto the symmetrically arranged connecting plate 98. By virtue of the supporting effect of the supporting convex edge 99 on the cylindrical roller, it continues to roll on the symmetrically arranged connecting plate 98. When the cylindrical roller 2 rolls to the position of the opposed switch 912, the opposed switch 912 senses the position signal of the cylindrical roller 2 and transmits the position signal of the cylindrical roller 2 to the PLC control module. The PLC control module sends a control instruction to start the feeding port of the CNC machining center, thereby conveying the cylindrical roller to the machining working position of the CNC machining center. III. Adjustment of the conveying widths of the receiving groove and the adjustable conveying groove: 1. Adjustment of the conveying width of the receiving groove: When the length of the blank of the cylindrical roller 2 increases and the conveying width of the receiving groove 5 needs to be increased, loosen the upper nut at the right end of the adjusting rod 54, then move the adjusting plate 53 to the right side of the bottom plate 51, and finally tighten the nut after positioning the adjusting limit body 56, and make an adaptive adjustment according to the sawing length of the blank of the cylindrical roller 2; when the conveying width of the receiving groove needs to be decreased, perform the opposite actions as above. 2. Adjustment of the conveying width of the adjustable conveying groove: When the length of the blank of the cylindrical roller 2 increases and the conveying width of the adjustable conveying groove needs to be increased, first loosen the nut at the right end of the adjusting rod 96, and at the same time loosen the screw and nut installed at the right side position of the right connecting plate 98 on the slot opening 914; then move the adjusting plate 93 to the right side of the inclined support plate 91, and at the same time drive the right connecting plate 98 to move the same distance to the right along the reinforcing adjusting plate 913. Finally, tighten the nut at the right end of the adjusting rod 96 to make the limiting block 97 close to the left side surface of the convex block 94 on the right adjusting plate 93, and at the same time install the screw and nut on the slot opening 914 of the reinforcing adjusting plate 913 at the position of the right connecting plate 98 and tighten the screw and nut; if you want to decrease the conveying width of the adjustable conveying groove, perform the opposite actions as above.

[0039] Various modifications to the above-described embodiments will be apparent to those of ordinary skill in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic feeding device for cylindrical rollers, comprising a chain plate conveyor, cylindrical rollers, and a support plate. The chain plate conveyor is arranged at the bottom position of the pushing mechanism. The chain plate conveyor is used to convey the sawn segmental cylindrical rollers to the bottom position of the pushing mechanism; the cylindrical rollers are placed on the chain plate conveyor, and the support plates are symmetrically and fixedly arranged on the right side plate of the chain plate conveyor; the pushing mechanism is fixedly arranged on the support plate, and the pushing mechanism is used to push the cylindrical rollers into the second receiving groove through the first receiving groove; the receiving groove is divided into a first receiving groove and a second receiving groove. The first receiving groove is fixedly arranged at the rear bottom position of the pushing mechanism, and a connecting body is fixedly arranged on the left side of the first receiving groove. The rear side surface of the connecting body is fixedly connected to the front side surface of the rear part of the pneumatic feeding mechanism. The second receiving groove is fixedly arranged at the right side position of the pneumatic feeding mechanism. The second receiving groove realizes its own up and down lifting under the lifting action of the pneumatic feeding mechanism, so as to realize the lifting feeding of the cylindrical rollers; the pneumatic feeding mechanism is arranged at the rear left position of the first receiving groove. The first receiving groove and the second receiving groove are flush with each other front and back, and there is a gap reserved between the first receiving groove and the second receiving groove; the adjustable conveying groove is fixedly arranged at the upper rear position of the pneumatic feeding mechanism. The adjustable conveying groove corresponds to the second receiving groove in an up and down manner. The adjustable conveying groove is used to convey the cylindrical rollers to the processing station of the numerical control machining center.

2. The automatic feeding device for cylindrical rollers according to claim 1, characterized in that: The pusher mechanism includes a support plate which is a trapezoidal plate. The support plates are symmetrically arranged left and right to form a cavity structure. A U-shaped opening is provided at the middle position of the bottom of the support plates symmetrically arranged left and right. The U-shaped opening is an opening that penetrates the support plate body. Limit bottom plates are symmetrically arranged front and back on both sides of the U-shaped opening between the support plates. The two limit bottom plates symmetrically arranged front and back form a space for limiting and guiding cylindrical rollers. A connecting plate is fixedly arranged at the upper front position of the support plates symmetrically arranged left and right. The connecting plate is used for fixedly connecting the support plates symmetrically arranged left and right. A stop rod is fixedly arranged at the lower rear position of the connecting plate. Both ends of the stop rod are fixedly connected to the support plates. A discharge chute is fixedly arranged inside the rear sides of the left and right support plates. The discharge chute is a hollow structure formed by symmetrically combining two plates. The discharge chute is fixed at both ends of the rear limit bottom plate. A convex edge is fixedly arranged on the inner bottom edge of the discharge chute. The convex edge is used for rolling support of the cylindrical roller. A connecting rod is installed at the upper rear end position of the discharge chute. A first set screw handle and a second set screw handle respectively pass through the upper rear body of the chute end to tightly fix the connecting rod. A fixed connecting rod is fixedly arranged at the upper rear position of the support plates. Both ends of the fixed connecting rod are fixedly connected to the inner walls of the support plates. A floating bracket is fixedly arranged at the upper rear end position of the left and right support plates. The floating bracket is used for floating support of a double-rod cylinder. The double-rod cylinder is fixedly arranged at the upper position of the floating bracket. Magnetic switches are symmetrically arranged in the upper grooves of the double-rod cylinder. The magnetic switches are used for detecting the stroke position of the double-rod cylinder. A cushion block is fixedly arranged at the front end of the telescopic rod of the double-rod cylinder. The cushion block is fixedly connected to the upper rear side of the pusher frame. The pusher claw includes a pusher claw body which is U-shaped. A fixing hole is provided at the upper position near the rear side of the pusher claw body. A rotating hole is provided at the middle position near the lower part of the pusher claw body. A circular protrusion is fixedly arranged on the right surface of the rotating hole. The rotating hole penetrates through the circular protrusion. A push groove is provided at the middle position of the bottom of the pusher claw body. The push groove is a U-shaped groove with an open bottom. A convex platform is provided at the middle position of the front side of the pusher claw body. The circular protrusion of the pusher claw body is installed in the inner ring of a bearing. The pusher claw body and the bearing are symmetrically installed on a rotating shaft. The outer side surface of the pusher claw body is parallel to the inner side surface of the support plate and a gap is reserved. The rotating shaft passes through the outer sides of the left and right support plates and is fixed by end caps. The pusher frame is fixedly installed at both ends of a through rod. The through rod on the inner side of the pusher frame passes through the fixing holes of the symmetrically installed pusher claw bodies and is fixed to the through rod. The bottom of the pusher claw body extends to the upper position of the limit bottom plate. A proximity switch mounting hole is provided at the middle position of the bottom of a proximity switch mounting plate. The proximity switch mounting plate is fixedly installed at the inner side position of the U-shaped opening of the right support plate. The proximity switch mounting hole is a through hole that penetrates the right support plate. The proximity switch is fixedly installed in the proximity switch mounting hole. The proximity switch is used for sensing the conveying displacement position of the cylindrical roller.

3. The automatic feeding device for cylindrical rollers according to claim 2, characterized in that: The limit bottom plate includes a limit bottom plate body which is rectangular. An inclined surface is provided on one side surface of the limit bottom plate body. The inclined surface of the limit bottom plate body faces the middle line direction of the U-shaped opening. Both ends of the limit bottom plate body are fixedly connected to the support plates.

4. An automatic feeding device for cylindrical rollers according to claim 1, characterized in that: The receiving groove includes a bottom plate which is inclined with the front end higher than the rear end. The bottoms of the vertical fixing plate and the adjusting plate are inclined. The vertical fixing plate is fixedly arranged at the left end position of the bottom plate, and the adjusting plate is placed in a fitting manner at the corresponding position of the vertical fixing plate. Adjusting holes are symmetrically formed in the upper side of the adjusting plate. The left end of the adjusting rod is fixedly connected to the upper part of the vertical fixing plate. The right end of the adjusting rod passes through the adjusting hole in the upper part of the adjusting plate, and a limiting body is sleeved on the adjusting rod inside the adjusting plate. External threads are provided on the adjusting rod, threaded holes are symmetrically arranged on the side surface of the limiting body, and the right end of the adjusting rod is fixed and limited at a specific position by the cooperation of the nut and the limiting body to fix the adjusting plate.

5. The automatic feeding device for cylindrical rollers according to claim 2, characterized in that: The floating bracket includes a cross plate which is horizontally and fixedly arranged at the upper rear position of the left and right support plates. Vertical plates are symmetrically arranged at the middle upper position of the cross plate. A bearing is fixedly installed at the center of the side surface of the vertical plate. A connecting rod is horizontally fixedly installed in the inner ring of the bearing of the vertical plate. A fixing body is fixedly installed at the middle position of the connecting rod, and the fixing body is used for fixedly installing a double-rod cylinder.

6. The automatic feeding device for cylindrical rollers according to claim 1, characterized in that: The pneumatic feeding mechanism includes a cylinder support body which is fixedly arranged at the right side position of the first receiving groove. A matching baffle is fixedly arranged at the rear side position of the cylinder support body. A guide rod type rodless cylinder is vertically and fixedly arranged at the right side position of the cylinder support body. A slider is arranged on the guide rod type rodless cylinder and moves up and down on the guide rod type rodless cylinder. A slide rail is fixedly arranged at the rear side position of the guide rod type rodless cylinder and is fixedly connected to the right side surface of the cylinder support body. A slide rail moving body is slidably installed on the slide rail. A pair of magnetic switch groups are symmetrically arranged in the grooves on the front and rear side surfaces of the guide rod type rodless cylinder, and the magnetic switch group one is used for detecting the stroke position of the guide rod type rodless cylinder. Buffer fixed bodies are symmetrically fixedly arranged at the upper and lower ends of the right side of the slide rail. A buffer body penetrates and is fixed at the center of the buffer fixed body. A buffer rod is fixedly arranged at the center of the inner end of the buffer body, and a rubber head is fixedly arranged at the inner end of the buffer rod. A proximity switch one is fixedly arranged at the front side near the middle position of the bottom of the matching baffle, and the proximity switch one is used for sensing and detecting the position signal of the cylindrical roller.

7. The automatic feeding device for cylindrical rollers according to claim 1, characterized in that: The receiving groove is fixedly arranged on the slider of the guide rod type rodless cylinder and the slide rail moving body, and a gap is reserved between the receiving groove and the matching baffle. The proximity switch one is arranged corresponding to the receiving groove in the front and rear directions.

8. An automatic feeding device for cylindrical rollers according to claim 1, characterized in that: The adjustable conveying trough includes an inclined support plate which is fixedly arranged with the front end higher and the rear end lower at the upper right position of the mating baffle. The fixed plate is vertically fixed at the upper left end position of the inclined support plate. The adjusting plates are symmetrically arranged at the right side position of the fixed plate. Two groups of convex blocks are symmetrically arranged on the upper end faces of the fixed plate and the adjusting plates from left to right. Two convex blocks form a group, and each convex block is provided with an adjusting hole. The left end of the adjusting rod is fixedly installed in the adjusting hole of the convex block on the fixed plate. The right end of the adjusting rod passes through the adjusting hole of the convex block on the adjusting plate and extends to the right side position of the adjusting plate. The limiting block is installed on the adjusting rod at the left side position of the adjusting plate. The adjusting rod is provided with an external thread, and a threaded hole is provided at the central position of the limiting block. A nut is installed at the right end of the adjusting rod; the connecting plates are symmetrically and fixedly arranged at the inner rear end positions of the fixed plate and the adjusting plates. A supporting convex edge is fixedly arranged at the inner bottom edge of the connecting plates; the opposed switch support plate is fixedly arranged at the outer front end position of the connecting plates. A square hole is opened on the side surface of the connecting plates corresponding to the opposed switch support plate. The opposed switches are fixedly arranged on the opposed switch support plate and are symmetrically arranged. The reinforcing adjusting plate is fixedly arranged at the bottom position near the rear end of the left connecting plate and extends to the right side position of the right connecting plate. A notch is opened at the upper right end of the reinforcing adjusting plate. A screw is passed through the notch on the reinforcing adjusting plate and is fixedly tightened on the screw by a nut to fixedly connect the rear ends of the left and right connecting plates into one body.

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