CN114147598B - A roller support device for a step-by-step multi-station centerless roller cylindrical grinder - Google Patents

Abstract

The invention belongs to the technical field of roller grinding, and particularly discloses a roller supporting device of a stepping type multi-station coreless roller cylindrical grinding machine, which comprises a roller supporting device, a roller servo jacking device and a roller cylinder jacking device, wherein the roller supporting device comprises a supporting plate, a roller jacking plate and a driving mechanism, the rollers can be placed at the top of the supporting plate, the front and rear parts of the upper part of the supporting plate are respectively provided with the roller jacking plates which are arranged in parallel with the roller jacking plate, the roller jacking plate is movably connected with the supporting plate, under the action of the driving mechanism, the roller jacking plate can vertically upwards move relative to the supporting plate to jack the rollers or vertically downwards move away from the rollers, under the action of the driving mechanism, the jacking heads and the cylinder stretching rod jacking heads can horizontally move left and right to be close to and jack the rollers or keep away from the rollers, so as to prevent the rollers from jumping during processing, improve coaxiality of the rollers after arc opening and finish grinding, improve the quality of finished products and improve the processing precision.

Description

A stepping type multi-station centerless roller cylindrical grinder roller support device

Technical field

The invention belongs to the technical field of roller grinding, and specifically discloses a step-type multi-station centerless roller cylindrical grinder roller support device.

Background technique

Arc or logarithmic curve rollers are often ground by centerless through grinding. In order to achieve the dimensional accuracy and surface quality requirements of the rollers, this grinding method requires two processes of arc opening and fine grinding on two grinding machines. This results in poor roller quality stability and low work efficiency. In order to improve the roller processing quality and work efficiency, it is necessary to design a multi-station centerless roller cylindrical grinder with dual arc opening and fine grinding stations. The roller is The grinder can quickly support and clamp when grinding, and can be adjusted according to rollers of different sizes to improve the quality and efficiency of roller processing.

Contents of the invention

In order to solve the problems in the background technology, the present invention discloses a step-type multi-station centerless roller cylindrical grinder roller support device, which includes a roller support device, a roller servo head device and a roller cylinder head device, which can be used at the same time. The table grinder performs step-by-step arc opening and fine grinding of the outer circle, with high processing efficiency and good finished product quality.

In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

A stepping type multi-station centerless roller cylindrical grinder roller support device, including a base plate, a roller support device, a roller servo head device and a roller cylinder head device. The base plate is set horizontally, and the roller support device includes a support plate. , roller jacking plate and driving mechanism. The support plate is set vertically on the bottom plate. The rollers can be placed on the top of the support plate. There are roller jacking plates arranged parallel to the upper part of the support plate at the front and rear respectively. The rollers The jacking plate is movably connected to the support plate. Under the action of the driving mechanism, the roller jacking plate can move vertically upward relative to the support plate to jack up the roller or move vertically downward away from the roller. The roller servo jacking device and The roller cylinder head device is arranged at intervals on the left and right sides of the support plate. The roller servo head device includes a head. The roller cylinder head device includes a cylinder extending rod head. The head and the cylinder extending rod head are relatively arranged above the support plate. Under the action of the driving device, the top head and the cylinder extending rod head can move horizontally left and right to approach and push against the roller or away from the roller.

Further, the driving mechanism includes a lower connecting rod, an upper connecting rod, a gear and a rack. There are two horizontal through holes that penetrate the support plate at left and right intervals in the middle of the support plate. A gear shaft is penetrated in each through hole. Gears are rotatably connected to both ends of each gear shaft. Below the gears, there are racks meshed with the gears. The racks are movably connected to the base plate through matching slide blocks and guide rails. One end of the rack is connected through The gears are connected to the lower end of the lower connecting rod that is inclined upward, and the upper end of the lower connecting rod is hingedly connected to the lower end of the upper connecting rod that is inclined in the opposite direction. The upper end of the rod is hingedly connected to the lower end of the roller jacking plate. Under the action of the rack cylinder, the rack can move left and right and drive the roller jacking plate vertically upward relative to the support plate through the gear, lower connecting rod and upper connecting rod. The movement lifts the roller up or moves it straight down and away from the roller.

Further, the roller servo head device includes a servo motor, a coupling, a screw and a head. The servo motor is installed on the fixed plate through the motor frame. The output end of the servo motor is connected to one end of the screw through the coupling. The other end of the rod is threaded through a threaded nut on the upper part of the vertical nut seat. A horizontal head is installed on the lower part of the nut seat. The free end of the head extends in the direction close to the roller. Under the action of the servo motor, , the screw can drive the head through the nut seat to move left and right to approach or away from the roller.

Further, the roller cylinder head device includes a cylinder bracket, a cylinder fixed plate, a cylinder and a cylinder extending rod head. The free end of the cylinder extending rod head is opposite to the free end of the head, and the other end of the cylinder extending rod head is connected to the cylinder output end. connection, the cylinder is set on the top of the cylinder fixed plate, and the cylinder fixed plate is fixedly connected to the bottom plate through a vertical cylinder bracket. The cylinder can push the cylinder extending rod head to move in the direction close to the roller and push against the roller.

Further, a linear bearing is set in the middle part of the ejector head, the linear bearing is arranged on the upper part of the ejector connecting plate, and the lower part of the ejector connecting plate is connected to the upper end of the ejector bracket provided on the bottom plate.

Furthermore, the left and right ends of the front and rear sides of the upper part of the support plate are respectively provided with card slots that match the roller jacking plates. The card slots are arranged vertically, and the left and right ends of the roller jacking plates are respectively embedded in the corresponding clamping plates. The slot is slidingly connected with the card slot.

Further, a discharge port is provided at one end of the top of the support plate adjacent to the cylinder fixed plate. Under the action of the servo motor, the top moves in the direction close to the roller to push the processed roller to be led out of the discharge port.

Compared with the prior art, the beneficial effects of the present invention are:

The roller support device of the step-type multi-station centerless roller cylindrical grinder of the present invention includes a roller support device, a roller servo head device and a roller cylinder head device. The roller support device is used to support the roller, and the roller servo head device is used to support the roller. The top device and the roller cylinder top device are arranged at intervals on the left and right sides of the support plate. The roller servo top device includes a top, and the roller cylinder top device includes a cylinder extension rod top. The top and the cylinder extension rod top are relatively arranged on the support plate. Above, under the action of the driving device, the ejector head and the cylinder rod ejector head can move horizontally left and right to approach and push against the roller or away from the roller. When working, the two ends of the roller are pushed by the servo motor ejector rod and the cylinder rod ejector rod respectively. It can prevent the roller from jumping during processing, improve the coaxiality of the roller after arc opening and fine grinding, improve the quality of finished products, and improve the processing accuracy. Arc opening and fine grinding can be performed step by step on the same grinding machine. Round, high processing efficiency, good quality of finished products, easy to adjust, install, maintain and use.

Description of drawings

FIG1 is a schematic diagram of the main structure of the present invention;

Figure 2 is a schematic structural diagram of the A-A section in Figure 1;

Figure 3 is a schematic top view of the structure of Figure 1;

Figure 4 is a left structural diagram of Figure 1;

Figure 5 is a right structural diagram of Figure 1;

Figure 6 is a schematic diagram of the three-dimensional structure of Figure 1;

Figure 7 is a schematic diagram of the roller fine grinding process;

In the above figure: 1-base plate; 2-roller support device; 3-roller servo head device; 4-roller cylinder head device; 5-roller; 6-discharge port; 2.1-support plate; 2.2-guide rail ; 2.3-slider; 2.4-rack; 2.5-rack cylinder fixed plate; 2.6-rack cylinder extending rod; 2.7-rack cylinder; 2.8-gear shaft; 2.9-key; 2.10-thrust bearing A; 2.11 -Gear; 2.12-deep groove ball bearing; 2.13-thrust bearing B; 2.14-gland; 2.15-lock nut; 2.16-lower connecting rod; 2.17-upper connecting rod; 2.18-roller jacking plate; 3.1-motor Frame; 3.2-motor seat; 3.3-bearing seat; 3.4-servo motor; 3.5-coupling; 3.6-screw; 3.7-nut; 3.8-nut seat; 3.9-head; 3.10-linear bearing; 3.11-head Rod connecting plate; 3.12-ejector rod bracket; 4.1-cylinder bracket; 4.2-cylinder fixed plate; 4.3-cylinder; 4.4-cylinder extending rod top.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

With reference to the accompanying drawings 1-7, a step-by-step multi-station centerless roller cylindrical grinder roller support device of the present invention is described in detail, including a base plate 1, a roller support device 2, a roller servo head device 3 and a roller cylinder. The top device 4 and the bottom plate 1 are set horizontally. The roller support device 2 includes a support plate 2.1, a roller jacking plate 2.18 and a driving mechanism. The support plate 2.1 is set vertically on the bottom plate 1. The roller 5 can be placed on the support plate 2.1. At the top, there are roller jacking plates 2.18 arranged parallel to the upper part of the support plate 2.1 at the front and rear respectively. The left and right ends of the front and rear sides of the upper part of the support plate 2.1 are respectively provided with slots matching the roller jacking plates 2.18. The slot is arranged vertically, and the left and right ends of the roller jacking plate 2.18 are respectively embedded in the corresponding slots and are slidingly connected to the slots. Under the action of the driving mechanism, the roller jacking plate 2.18 can stand upright relative to the support plate 2.1 Move straight upward to push up the roller 5 or move vertically downward away from the roller 5. The roller servo head device 3 and the roller cylinder head device 4 are spaced on the left and right sides of the support plate 2.1. The roller servo head device 3 includes The head 3.9, the roller cylinder head device 4 includes a cylinder extending rod head 4.4, the head 3.9 and the cylinder extending rod head 4.4 are relatively arranged above the support plate 2.1, under the action of the driving device, the head 3.9 and the cylinder extending rod head 4.4 4.4 can move horizontally left and right to approach and push against the roller 5 or away from the roller 5. The head 3.9 and the cylinder extension rod head 4.4 push against both ends of the roller 5 to prevent the roller 5 from jumping during the processing. On the support plate 2.1 An outlet 6 is provided at one end of the top adjacent to the cylinder fixed plate 4.2. Under the action of the servo motor 3.4, the top 3.9 moves in a direction close to the roller 5 and pushes the processed roller 5 out of the outlet 6.

As an optional design, it is preferred that the driving mechanism of the roller support device 2 includes a lower link 2.16, an upper link 2.17, a gear 2.11 and a rack 2.4. There are two horizontally penetrating support plates 2.1 spaced left and right in the middle of the support plate 2.1. Through holes, a gear shaft 2.8 is passed through each through hole, and the gear shaft 2.8 is connected to the roller support plate 2.1 through a key 2.9. The two ends of each gear shaft 2.8 are respectively connected to a gear 2.11 for rotation. The two gear shafts 2.8 The two ends of the extended roller support plate 2.1 are respectively equipped with thrust bearings A2.10 and deep groove ball bearings 2.12. The two ends of the thrust bearing A2.10 are in surface contact with the roller support plate 2.1 and the gear 2.11 respectively. The deep groove ball bearings 2.12 The outer ring is set in the hole in the middle of the four gears 2.11, and the thrust bearing B2.13 is set in the groove on the outside of the gear 2.11. The inner boss of the gland 2.14 matches the inner hole of the thrust bearing B2.13, and the shoulder of the gland 2.14 matches the inner hole of the thrust bearing B2.13. The end face of the thrust bearing B2.13 is in contact, and the locking nut 2.15 is screwed with the outermost threads at both ends of the gear shaft 2.8 to fix the gear 2.11. Below the gear 2.11, there are racks 2.4 meshingly connected with the gear 2.11. The strip 2.4 is movably connected to the base plate 1 through the matching slider 2.3 and guide rail 2.2. Guide rails 2.2 are fixedly installed on the front and rear sides of the lower end of the support plate 2.1. The slider 2.3 is mounted on the guide rail 2.2, and the rack 2.4 is fixedly installed on the guide rail 2.2. Above the slider 2.3, the rack cylinder fixing plate 2.5 is fixedly installed on the right end of the two racks 2.4. The rack cylinder 2.7 is fixedly installed above the base plate 1, located on the right side of the roller support plate 2.1. The rack cylinder extends the rod 2.6 and the tooth The cylinder fixing plate 2.5 is fixedly connected, and the gears 2.11 are respectively connected to the lower ends of the lower connecting rods 2.16 arranged obliquely upward. There are two small screw holes on the end face of the gears 2.11, and the lower connecting rods 2.16 are fixedly installed. The upper end of the lower connecting rods 2.16 is connected to The lower end of the upper connecting rod 2.17 arranged at a reverse tilt is hingedly connected. The upper end of the upper connecting rod 2.17 is hingedly connected with the lower end of the roller jacking plate 2.18. The rack cylinder 2.7 pushes the rack cylinder extension rod 2.6 to extend outward, pushing the gear The bar 2.4 moves to the left and the driving gear 2.11 rotates clockwise. Through the linkage mechanism of the lower link 2.16 and the upper link 2.17, the roller jacking plate 2.18 is driven to jack up in the chute on the upper part of the roller support plate 2.1. When the sub-lifting plate 2.18 is pushed to the highest point, the roller lifting plates 2.18 on the front and rear sides of the supporting plate 2.1 are higher than the upper surface of the roller supporting plate 2.1, and the roller 5 on the roller supporting plate 2.1 is pushed up and away from the rollers. The support plate 2.1 and the roller lifting plate 2.18 are made of plastic material, which facilitates the roller 5 to slide to the left under the push of the servo motor 3.4, and the surface of the roller is not easily scratched.

As an optional design, it is preferred that the roller servo head device 3 includes a servo motor 3.4, a coupling 3.5, a screw 3.6 and a head 3.9. The servo motor 3.4 is fixedly installed on the right end of the motor base 3.2, and the motor base 3.2 is fixedly installed above the motor bracket 3.1. On the right side, the motor bracket 3.1 is fixedly installed on the right side above the base plate 1, the bearing seat 3.3 is set in the hole above the motor bracket 3.1, the right end of the screw 3.6 is set in the hole in the middle of the bearing seat 3.3, and is connected to the servo motor through the coupling 3.5 3.4 output shaft connection, nut 3.7 is set on the screw 3.6, the outer circle of the nut 3.7 is fixed in the nut seat 3.8, the slotted hole below the nut seat 3.8 is penetrated with a head 3.9, and the linear bearing 3.10 is set in the middle of the head 3.9 , the linear bearing 3.10 is set in the hole above the ejector connecting plate 3.11, the lower part of the ejector connecting plate 3.11 is fixedly connected to the ejector bracket 3.12, the lower part of the ejector bracket 3.12 is fixedly installed on the base plate 1, and the servo motor 3.4 drives the screw 3.6 to rotate , causing the nut 3.7 to move left and right, driving the head 3.9 to move left and right in the hole of the linear bearing 3.10, so as to push the roller 5 to step into the arc opening and fine grinding processing station, and finally push the roller 5 into the discharge port.

As an optional design, it is preferred that the roller cylinder head device 4 includes a cylinder bracket 4.1, a cylinder fixing plate 4.2, a cylinder 4.3 and a cylinder extending rod head 4.4. The free end of the cylinder extending rod head 4.4 is opposite to the free end of the head 3.9. The cylinder The other end of the extending rod head 4.4 is connected to the output end of the cylinder 4.3. The cylinder 4.3 is arranged on the top of the cylinder fixed plate 4.2. The cylinder fixed plate 4.2 is fixedly connected to the bottom plate 1 through the vertically arranged cylinder bracket 4.1. The cylinder 4.3 can push the cylinder to extend the rod. The head 4.4 moves in the direction close to the roller 5 and presses the roller 5 to ensure that the roller 5 does not jump during processing.

The working process of the present invention is as follows:

The grinding wheel on the grinding machine used in conjunction with the roller support device of the step-type multi-station centerless roller cylindrical grinder of the present invention is a double grinding wheel. One grinding wheel has 80 grains and is used for arc opening; the other grinding wheel has 240 grains and is used for precision. Grinding, the guide wheel is also a double guide wheel, used for arc opening and fine grinding respectively. The outer circular shape of the double grinding wheel and the double guide wheel are modified according to the size and shape required by the roller grinding process. During grinding, the roller Above the support plate 2.1, the grinding wheel and the guide wheel are respectively located on both sides of the outer circle of the roller and are in contact with the roller. The right end face of the roller is supported by the head 3.9 driven by the servo motor 3.4, and the left end face is supported by the cylinder extending rod head 4.4. Pushing, this can prevent the roller from jumping during grinding. The servo motor, 3.4 drives the pusher 3.9 to push the roller 5 to the exact position required for each station. The design of double grinding wheels and double guide wheels can ensure that the rollers The coaxiality is high, and secondary clamping can be avoided, which can improve processing accuracy and efficiency;

Before grinding, start the rack cylinder 2.7, and the rack cylinder extends the rod 2.6 to push the rack 2.4 to move to the left, driving the gear 2.11 to rotate clockwise, and jack up the roller through the lower link 2.16 and the upper link 2.17 linkage mechanism Lift up the plate 2.18, place the roller 5 into the groove in the middle of the right end above the two roller lifting plates 2.18, turn on the servo motor 3.4, the servo motor 3.4 drives the screw 3.6 to rotate, and the screw 3.6 drives the head 3.9 to the left Push, push the top 3.9 against the right end surface of the roller 5, push the roller 5 accurately to the first station, that is, the arc opening station, stop the servo motor 3.4, the rack cylinder 2.7 reversely intakes air, and the rack cylinder extends The rod 2.6 drives the rack 2.4 to move to the right and drives the gear 2.11 to rotate counterclockwise. Through the linkage mechanism of the lower link 2.16 and the upper link 2.17, it pulls the roller jacking plate 2.18 to move downward, causing the roller jacking plate 2.18 to move downward. The top is lower than the top of the roller support plate 2.1, the roller 5 falls to the upper end of the roller support plate 2.1, the cylinder 4.3 is opened, and the cylinder extends the rod head 4.4 to the right and presses against the other end of the roller 5;

When the arc is opened, the grinding wheel and the guide wheel begin to rotate. The 80-grain grinding wheel and the first guide wheel slowly approach the grinding roller 5. The outer circular surface of the 80-grain grinding wheel and the first guide wheel is shaped according to the outer circular shape required by the roller to open the arc. Trim and grind roller 5 into the shape and size required for arc opening;

After the arc opening is completed, the 80-grain grinding wheel, the first guide wheel and the cylinder 4.3 are retracted, the rack cylinder 2.7 is opened, the rack cylinder extends the rod 2.6 to push the rack 2.4 to move to the left, driving the gear 2.11 to rotate clockwise, and passes the lower connecting rod 2.16 and the upper link 2.17 linkage mechanism push up the roller lifting plate 2.18, push up the roller 5, leave the roller support plate 2.1, turn on the servo motor 3.4, the servo motor 3.4 continues to drive the top 3.9 to push the roller 5 direction Move left, accurately push roller 5 to the second station, which is the outer circle fine grinding station, stop servo motor 3.4, rack cylinder 2.7 reversely intakes air, and the rack cylinder extends rod 2.6 to drive rack 2.4 to the right moves, driving the gear 2.11 to rotate counterclockwise, and pulling the roller jacking plate 2.18 to move downward through the lower link 2.16 and the upper link 2.17 linkage mechanism, so that the top of the roller jacking plate 2.18 is lower than the roller support plate 2.1 At the top, the roller 5 falls to the upper end of the roller support plate 2.1, the cylinder 4.3 is opened, and the rod head 4.4 of the cylinder extends to the right and presses against the other end of the roller 5;

During fine grinding, the 240-grain grinding wheel and the second guide wheel slowly approach the grinding roller 5. The outer circular surfaces of the 240-grain grinding wheel and the second guide wheel are trimmed according to the outer circular shape required for roller fine grinding, and the roller 5 is Grinding to the shape and size required for fine grinding;

After the fine grinding is completed, the 240-grain grinding wheel, the second guide wheel and the cylinder 4.3 are retracted, the rack cylinder 2.7 is opened, the rack cylinder extends the rod 2.6 to push the rack 2.4 to move to the left, driving the gear 2.11 to rotate clockwise, and passes the lower connecting rod 2.16 and the upper link 2.17 linkage mechanism push up the roller lifting plate 2.18, push up the roller 5, leave the roller support plate 2.1, turn on the servo motor 3.4, the servo motor 3.4 drives the top 3.9 to push the roller 5 and continue to Move to the left and enter the discharge port 6. Arc opening and fine grinding of the outer circle are performed step by step on the same grinder. The processing efficiency is high, the quality of the finished product is good, and it is easy to adjust, install, maintain and use.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the claims All changes within the meaning and scope of equivalent elements are encompassed by the present invention, and any reference signs in a claim should not be construed as limiting the claim involved.

In addition, it should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. This description of the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole. , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A roller supporting device of a stepping type multi-station centerless roller cylindrical grinding machine is characterized in that: comprises a bottom plate, a roller supporting device, a roller servo jacking device and a roller cylinder jacking device, wherein the bottom plate is horizontally arranged, the roller supporting device comprises a supporting plate, a roller jacking plate and a driving mechanism, the supporting plate is vertically arranged on the bottom plate, a roller can be placed at the top of the supporting plate, the front and the rear of the upper part of the supporting plate are respectively provided with the roller jacking plate which is arranged in parallel with the roller jacking plate, the roller jacking plate is movably connected with the supporting plate, the driving mechanism comprises a lower connecting rod, an upper connecting rod, a gear and a rack, two horizontal through holes penetrating the supporting plate are arranged at the left and right sides of the middle part of the supporting plate at intervals, gear shafts are respectively penetrated in each through hole, two ends of each gear shaft are respectively connected with the gear in a rotating way, racks which are respectively connected with the gears in a meshed way are respectively arranged below the gears, and the racks are movably connected with the bottom plate through sliding blocks and guide rails which are arranged in a matching way, one end of the rack is connected with a rack cylinder extension rod of the rack cylinder through a connecting piece, the gear is respectively connected with the lower end of a lower connecting rod which is obliquely upwards arranged, the upper end of the lower connecting rod is hinged with the lower end of an upper connecting rod which is reversely obliquely arranged, the upper end of the upper connecting rod is hinged with the lower end of a roller jacking plate, under the action of the rack cylinder, the rack can move left and right and drive the roller jacking plate to vertically upwards move relative to a supporting plate to jack the roller or vertically downwards move away from the roller through the gear, the lower connecting rod and the upper connecting rod, a roller servo jacking device and a roller cylinder jacking device are arranged at the left side and the right side of the supporting plate at intervals, the roller servo jacking device comprises a jacking head, the jacking head and the cylinder extension rod jacking head are oppositely arranged above the supporting plate under the action of a driving device, the top and the cylinder extension rod top can horizontally move left and right to approach and prop against the roller or keep away from the roller.

2. The roller support device of the stepping multi-station centerless roller cylindrical grinding machine according to claim 1, wherein the roller support device is characterized in that: the roller servo top device comprises a servo motor, a shaft coupling, a screw and a top, wherein the servo motor is arranged on a bottom plate through a motor frame, the output end of the servo motor is connected with one end of the screw through the shaft coupling, the other end of the screw is threaded through a nut in threaded connection, the top which is horizontally arranged is threaded on the lower portion of the nut seat, the free end of the top extends towards the direction which is close to the roller, and the screw can drive the top to move left and right to be close to or far away from the roller through the nut seat under the action of the servo motor.

3. The roller support device of the stepping type multi-station centerless roller cylindrical grinding machine according to claim 2, wherein: the roller cylinder top device comprises a cylinder support, a cylinder fixing plate, a cylinder and a cylinder extending rod top, wherein the free end of the cylinder extending rod top is arranged opposite to the free end of the top, the other end of the cylinder extending rod top is connected with the output end of the cylinder, the cylinder is arranged at the top of the cylinder fixing plate, the cylinder fixing plate is fixedly connected with a bottom plate through the vertically arranged cylinder support, and the cylinder can push the cylinder extending rod top to move in the direction close to the roller so as to push against the roller.

4. The roller support device of the stepping type multi-station centerless roller cylindrical grinding machine according to claim 2, wherein: the middle part of the top is sleeved with a linear bearing, the linear bearing is arranged on the upper part of a top rod connecting plate, and the lower part of the top rod connecting plate is connected with the upper end of a top rod bracket arranged on the bottom plate.

5. The roller support device of the stepping type multi-station centerless roller cylindrical grinding machine according to claim 2, wherein: the left end and the right end of the front side surface and the rear side surface of the upper part of the supporting plate are respectively provided with a clamping groove matched with the roller jacking plate, the clamping grooves are vertically arranged, and the left end and the right end of the roller jacking plate are respectively embedded in the corresponding clamping grooves and are in sliding connection with the clamping grooves.

6. A step-by-step multistation coreless roll cylindrical grinder roll supporting device according to claim 3, wherein: a discharge hole is formed in one end, close to the cylinder fixing plate, of the top of the supporting plate, and under the action of the servo motor, the top moves in the direction close to the roller to push the processed roller to be guided out of the discharge hole.