Bar rolling device and processing method

Abstract

The present invention belongs to the field of bar processing technology, and particularly relates to a bar rolling device and processing method. A bar rolling device includes a base, a bearing and a main shaft are provided in the middle of the base, the main shaft is hollow inside and is used to pass the bar to be processed, a disk is provided on the side of the main shaft extending out of the base, three rolling boxes are evenly provided on the end surface of the disk, a rolling roller is provided at the bottom of the rolling box, a rolling roller pressure adjustment mechanism and a rolling roller radial adjustment mechanism are respectively provided in the rolling box, a rolling box radial drive mechanism is provided at the top of the base, the rolling box radial drive mechanism is used to drive the rolling roller radial adjustment mechanism to adjust the distance between the rolling box and the bar to be processed in the main shaft, and the rolling roller pressure adjustment mechanism is used to adjust the rolling pressure of the rolling roller. The present invention performs rolling processing on the bar through the rolling box, and the rolling force can be freely adjusted. At the same time, it is suitable for rolling bars of different diameters, which can effectively improve the surface quality of the processed bar and the processing efficiency. It has a simple structure, is easy to maintain, and has high processing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of bar processing, and in particular relates to a bar rolling device and a processing method. Background Art

[0002] With the continuous advancement of industrial manufacturing technology, the requirements for the external dimensional accuracy and surface quality of round bars (or tubes) leaving the factory are becoming increasingly stringent. Currently, peeling machines, both domestically and internationally, only perform lathe peeling. However, the external dimensional accuracy and surface quality of the bars after peeling are poor, requiring further improvement. Existing bar rolling mainly uses ball rolling on lathes, which is inefficient, relies on manual experience to set the rolling pressure, and is complex to operate, requiring high worker skills. Furthermore, due to the limited length of the lathe, only shorter bars can be processed. Summary of the Invention

[0003] In response to the above problems, the purpose of the present invention is to provide a rod rolling device and processing method, in which the rod is rolled by three rolling boxes installed on the spindle disc. The rolling force can be freely adjusted by the rolling boxes. In addition, the three rolling boxes can realize simultaneous feeding movement to adapt to the rolling of rods of different diameters, which can effectively improve the surface quality of the processed rods and the processing efficiency. It has a simple structure, is easy to maintain, and has high processing efficiency.

[0004] The technical solution of the present invention is: a rod polishing device, comprising a base, a bearing is provided in the middle of the base, a main shaft is provided in the middle of the bearing, the interior of the main shaft is hollow, and is used to pass the rod to be processed, and a disk is provided on the side of the main shaft extending out of the base, and the end face of the disk is centered on the axis of the main shaft, and three polishing boxes are evenly provided, and the polishing box includes a polishing box body, a roller seat is provided at the lower part of the polishing box body, a roller shaft is provided on the roller seat, and a polishing roller is provided on the roller shaft, and a polishing roller pressure adjustment mechanism and a polishing roller radial adjustment mechanism are respectively provided in the polishing box body above the roller seat, and a polishing box radial driving mechanism is provided on the top of the base, and the polishing box radial driving mechanism is connected with the polishing roller radial adjustment mechanism, and is used to drive the polishing roller radial adjustment mechanism to adjust the distance between the polishing box and the rod to be processed in the main shaft, and the polishing roller pressure adjustment mechanism is used to adjust the rolling pressure of the polishing roller.

[0005] The polishing roller pressure adjustment mechanism includes a pressure cover, an adjustment shaft, an inner adjustment shaft, a pressure shaft and a sliding block connected in sequence from top to bottom. The sliding block is located above the roller seat. A sliding groove is provided on the outside of the sliding block. A sliding key matching the sliding groove is provided on the surface of the disc. The sliding groove can be slidably sleeved in the sliding key. A disc spring groove is provided above the sliding block. A disc spring is sleeved on the outside of the pressure shaft. The lower part of the disc spring is located in the disc spring groove. The pressure cover is fixedly connected to the top of the polishing box body, and the adjustment shaft can be rotatably installed in the middle of the pressure cover.

[0006] The radial adjustment mechanism of the polishing roller includes a feed gear, a pressing shaft and a pressing pad connected in sequence from top to bottom. The side of the feed gear is connected to the end face teeth of the synchronization gear. The synchronization gear is rotatably connected to the outer side of the disc close to the side of the polishing box body. The pressing shaft is threadedly connected to the inner surface of the polishing box body.

[0007] The radial driving mechanism of the roller polishing box includes a guide rail and an oil cylinder arranged on the top of the base, a sliding seat is slidably connected to the guide rail, the sliding seat is fixedly connected to the protruding end of the oil cylinder, an adjustment motor is provided above the sliding seat, an adjustment gear is connected to the output shaft of the adjustment motor, and the adjustment gear is rotatably connected to the radial teeth on the outside of the synchronization gear.

[0008] A clamping ring is provided on the top of the disc end surface close to the synchronous gear.

[0009] A copper sleeve is provided at the connection between the polishing roller and the roller shaft.

[0010] A positioning key is provided on the side of the polishing box body, and the polishing box body is fixedly connected to the end surface of the disc through the positioning key.

[0011] The roller shaft is provided with a positioning pin, and the roller shaft is fixedly connected to the roller seat through the positioning pin.

[0012] A bar rolling method, using any of the bar rolling devices described above, comprises the following steps:

[0013] S1: The bar to be processed passes through the hollow inside the spindle and extends out from the end face of the disc;

[0014] S2: According to the rolling reduction and processing diameter set by the rolling process parameters, the rolling pressure of the rolling roller is adjusted by the rolling roller pressure adjustment mechanism, and the distance between the rolling box and the bar to be processed in the spindle is adjusted by the rolling box radial drive mechanism.

[0015] S3: The main motor drives the main shaft to rotate, and the main shaft drives the three roller burnishing boxes installed on the end face of the disc to rotate. The roller burnishes the rod to be processed. The rod after burning can be discharged through the inner hole of the main shaft, thereby realizing the burning processing of long rods.

[0016] The technical effects of the present invention are as follows: 1. The present invention drives the three roller burnishing boxes installed on the end face to rotate through the main shaft. After the roller burnishing boxes set the pressing amount and processing diameter according to the process parameters, they burnish the rods to be processed. The burnished rods can be discharged through the inner hole of the main shaft, and the burning processing of long rods can be realized; 2. The present invention drives the sliding seat through the oil cylinder and drives the adjustment motor to move and engage the adjustment gear. The rotation of the adjustment motor can drive the synchronous gear to rotate. The synchronous gear is a gear with both end face teeth and radial teeth. It can rotate around the main shaft and is driven by the adjustment motor. Down, the synchronous gear rotates, and its end teeth can drive the three feed gears to rotate at the same time, and the feed gear is internally connected to the pressing shaft by a threaded pair. Therefore, when the feed gear rotates, it can drive the pressing shaft to move axially and drive the rolling box to feed or retreat, thereby realizing synchronous adjustment of the rolling box until it meets the set diameter, and can roll bars of different diameters; 3. The present invention drives the inner adjustment shaft to rotate by rotating the adjustment shaft, and drives the pressing shaft up and down by the threaded pair, thereby driving the sliding seat to produce displacement, and the compression amount of the disc spring changes, thereby realizing the adjustment of the rolling pressure.

[0017] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic structural diagram of a rod rolling device according to an embodiment of the present invention.

[0019] Figure 2 It is an enlarged schematic diagram of the structure of the roller burnishing box according to an embodiment of the present invention.

[0020] Figure markings: 1-rolling box, 2-adjusting gear, 3-adjusting motor, 4-sliding seat, 5-guide rail, 6-oil cylinder, 7-base, 8-bearing, 9-spindle, 10-rod to be processed, 11-adjusting shaft, 12-pressure cover, 13-feed gear, 14-inner adjusting shaft, 15-pressing pad, 16-pressing shaft, 17-disc spring, 18-sliding block, 19-roller seat, 20-roller shaft, 21-copper sleeve, 22-rolling roller, 23-pressing shaft, 24-synchronizing gear, 25-clamping ring, 26-positioning key, 27-rolling box body, 28-sliding key, 29-positioning pin. DETAILED DESCRIPTION Example 1

[0021] like Figure 1 、 Figure 2As shown, a rod polishing device comprises a base 7, a bearing 8 is provided in the middle of the base 7, a main shaft 9 is provided in the middle of the bearing 8, the main shaft 9 is hollow inside and is used to pass the rod 10 to be processed, and a disk is provided on the side of the main shaft 9 extending out of the base 7, and three polishing boxes 1 are evenly provided on the end face of the disk with the axis of the main shaft 9 as the center. The polishing box 1 comprises a polishing box body 27, a roller seat 19 is provided at the lower part of the polishing box body 27, a roller shaft 20 is provided on the roller seat 19, and a polishing roller 22 is provided on the roller shaft 20, and a polishing roller pressure adjustment mechanism and a polishing roller radial adjustment mechanism are respectively provided in the polishing box body 27 above the roller seat 19, and a polishing roller radial adjustment mechanism is provided. A polishing box radial driving mechanism is provided on the top of the base 7, and the polishing box radial driving mechanism is connected with the polishing roller radial adjustment mechanism, which is used to drive the polishing roller radial adjustment mechanism to adjust the distance between the polishing box 1 and the rod 10 to be processed in the main shaft 9, and the polishing roller pressure adjustment mechanism is used to adjust the rolling pressure of the polishing roller 22.

[0022] During actual use, the present invention passes the rod 10 to be processed through the hollow interior of the main shaft 9 and extends it out from the end face of the disc; according to the pressing amount and processing diameter set by the rolling process parameters, the rolling pressure of the rolling roller 22 is adjusted by the rolling roller pressure adjustment mechanism, and the radial adjustment mechanism of the rolling box is driven by the radial driving mechanism of the rolling roller to adjust the distance between the rolling box 1 and the rod 10 to be processed in the main shaft 9; the main motor drives the main shaft 9 to rotate, and the main shaft 9 drives the three rolling boxes 1 installed on the end face of the disc to rotate, and the rolling roller 22 rolls the rod 10 to be processed, and the rod after rolling can be discharged through the inner hole of the main shaft 9, thereby realizing the rolling processing of the long rod. Example 2

[0023] Preferably, on the basis of Example 1, in this embodiment, the polishing roller pressure adjustment mechanism includes a pressure cover 12, an adjustment shaft 11, an inner adjustment shaft 14, a pressure shaft 16 and a sliding block 18 connected in sequence from top to bottom, and the sliding block 18 is located above the roller seat 19, and a sliding groove is provided on the outside of the sliding block 18, and a sliding key 28 matching the sliding groove is provided on the surface of the disc, and the sliding groove can be slidably mounted in the sliding key 28, and a disc spring groove is provided above the sliding block 18, and a disc spring 17 is provided on the outside of the pressure shaft 16, and the lower part of the disc spring 17 is located in the disc spring groove, the pressure cover 12 is fixedly connected to the top of the polishing box body 27, and the adjustment shaft 11 can be rotatably installed in the middle of the pressure cover 12.

[0024] During actual use, the present invention drives the inner adjustment shaft 14 to rotate by rotating the adjustment shaft 11, and drives the pressure shaft 16 to move up and down through the threaded pair, thereby driving the sliding block 18 to produce displacement and the compression amount of the disc spring 17 to change, thereby realizing the adjustment of the rolling pressure. Example 3

[0025] Preferably, based on Example 1 or Example 2, in this embodiment, the radial adjustment mechanism of the polishing roller includes a feed gear 13, a pressing shaft 23 and a pressing pad 15 connected in sequence from top to bottom, and the side of the feed gear 13 is connected to the end face teeth of the synchronization gear 24, and the synchronization gear 24 is rotatably connected to the outer side of the disc close to the side of the polishing box body 27, and the pressing shaft 23 is threadedly connected to the inner surface of the polishing box body 27.

[0026] During actual use, the radial adjustment mechanism of the polishing roller described in the present invention includes a feed gear 13, a pressing shaft 23 and a pressing pad 15 connected in sequence from top to bottom. The side of the feed gear 13 is connected to the rotating shaft of the synchronous gear 24. The synchronous gear 24 is located on the outside of the polishing box body 27. The feed gear 13 and the pressing shaft 23 are connected by a spline, which can ensure that the pressing shaft 23 can move up and down while the position of the feed gear remains unchanged. The pressing shaft 23 is connected to the inside of the polishing box body through a threaded pair. A pressing pad 15 is installed at the bottom of the pressing shaft 23, and presses the disc spring 17, so that the disc spring 17 generates deformation pressure inside the pressing pad 15 and the sliding block 18. Example 4

[0027] Preferably, on the basis of Example 1 or Example 3, in this embodiment, the radial driving mechanism of the roller polishing box includes a guide rail 5 and a cylinder 6 arranged on the top of the base 7, and a sliding seat 4 is slidably connected to the guide rail 5, and the sliding seat 4 is fixedly connected to the protruding end of the cylinder 6. An adjustment motor 3 is provided above the sliding seat 4, and an adjustment gear 2 is connected to the output shaft of the adjustment motor 3, and the adjustment gear 2 is rotatably connected to the radial teeth on the outside of the synchronization gear 24.

[0028] During actual use, the adjusting gear 2 of the present invention is installed on the rotating shaft of the adjusting motor 3, and the adjusting motor 3 is fixed on the sliding seat 4. The sliding seat 4 can move horizontally on the upper part of the base 7 through the guide rail 5, and the oil cylinder 6 is used to drive the sliding seat 4 to move. When it is necessary to roll the bars of different diameters, the oil cylinder 6 can push the sliding seat 4 and drive the adjusting motor 3 to move and engage the adjusting gear 2. The rotation of the adjusting motor 3 can drive the synchronous gear 24 to rotate, and the synchronous gear 24 is a gear with both end teeth and radial teeth. It can rotate around the main shaft 9. Under the drive of the adjusting motor 3, the synchronous gear 24 rotates, and its end teeth can simultaneously drive the three feed gears 13 to rotate, and the feed gear 13 is internally connected to the pressing shaft by a threaded pair. Therefore, when the feed gear rotates, it can drive the pressing shaft to produce axial movement and drive the rolling box to feed or retreat, thereby realizing synchronous adjustment of the rolling box, and the feed of the three rolling boxes 1 can be synchronously adjusted until it meets the set diameter. Example 5

[0029] Preferably, based on Example 1 or Example 4, in this embodiment, a clamping ring 25 is provided on the top of the disc end surface close to the synchronous gear 24 .

[0030] During actual use, a clamping ring 25 is provided on the top of the end surface of the disc close to the synchronous gear 24 , and the clamping ring 25 is used to position the synchronous gear 24 . Example 6

[0031] Preferably, based on Example 1 or Example 5, in this embodiment, a copper sleeve 21 is provided at the connection between the polishing roller 22 and the roller shaft 20 .

[0032] During actual use, a copper sleeve 21 is provided at the connection between the polishing roller 22 and the roller shaft 20 of the present invention to ensure stable operation of the polishing roller 22 and prevent wear of the roller shaft 20. Example 7

[0033] Preferably, based on Example 1 or Example 6, in this embodiment, a positioning key 26 is provided on the side of the polishing box body 27, and the polishing box body 27 is fixedly connected to the end face of the disc through the positioning key 26.

[0034] During actual use, a positioning key 26 is provided on the side of the polishing box body 27 of the present invention, and the polishing box body 27 is fixedly connected to the end face of the disc through the positioning key 26, and the connection is tight and easy to adjust. Example 8

[0035] Preferably, on the basis of Example 1 or Example 7, in this embodiment, a positioning pin 29 is provided on the roller shaft 20 , and the roller shaft 20 is fixedly connected to the roller seat 19 via the positioning pin 29 .

[0036] During actual use, the roller shaft 20 of the present invention is fixedly connected to the roller seat 19 via the positioning pin 29, and the connection is tight and easy to adjust. Example 9

[0037] A bar rolling method, using any of the bar rolling devices described above, comprises the following steps:

[0038] S1: The rod 10 to be processed passes through the inner hollow of the spindle 9 and extends out from the end face of the disc;

[0039] S2: According to the rolling reduction and processing diameter set by the rolling process parameters, the rolling pressure of the rolling roller 22 is adjusted by the rolling roller pressure adjustment mechanism, and the distance between the rolling box 1 and the rod 10 to be processed in the spindle 9 is adjusted by the rolling box radial drive mechanism.

[0040] S3: The main motor drives the main shaft 9 to rotate, and the main shaft 9 drives the three roller burnishing boxes 1 installed on the end surface of the disc to rotate. The roller burnishing rollers 22 burnish the rods 10 to be processed. The burnished rods can be discharged through the inner hole of the main shaft 9, thereby realizing the rolling processing of long rods.

[0041] In step S2, according to the diameter of the processed rod, the processing diameter of the polishing roller is set to be 0.02~0.05mm smaller than the diameter of the processed rod. The higher the yield strength of the rod to be processed, the smaller the processing diameter of the polishing roller is, and the disc spring pressure is set to 1.1~1.4 times the yield strength of the processed rod. Since three polishing rollers are used for simultaneous processing, the rod feed speed can reach 0.2~0.3mm / r, and the linear speed of the polishing roller can reach 150~200m / min.

[0042] After roller burnishing, the material can achieve higher surface quality and geometric profile of the bar. At the same time, because roller burnishing is a plastic processing, it also improves the wear resistance and hardness of the bar surface. The present invention can effectively improve the surface quality of the processed bar, has high processing efficiency, and can effectively increase the economic added value of the bar. It has the advantages of simple structure, easy maintenance, and high processing efficiency.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A bar rolling device, characterized in that: The invention comprises a base (7), a bearing (8) is provided in the middle of the base (7), a main shaft (9) is provided in the middle of the bearing (8), the main shaft (9) is hollow inside and is used to pass through the rod (10) to be processed, a disk is provided on the side where the main shaft (9) extends out of the base (7), and three roller boxes (1) are evenly provided on the end surface of the disk with the axis of the main shaft (9) as the center, the roller box (1) comprises a roller box body (27), a roller seat (19) is provided at the lower part of the roller box body (27), and the roller seat (1 9) is provided with a roller shaft (20), and a polishing roller (22) is provided on the roller shaft (20), and a polishing roller pressure adjustment mechanism and a polishing roller radial adjustment mechanism are respectively provided in the polishing box body (27) above the roller seat (19), and a polishing box radial driving mechanism is provided on the top of the base (7), and the polishing box radial driving mechanism is connected to the polishing roller radial adjustment mechanism, and is used to drive the polishing roller radial adjustment mechanism to adjust the distance between the polishing box (1) and the rod (10) to be processed in the main shaft (9). The polishing roller pressure adjustment mechanism The mechanism is used to adjust the rolling pressure of the rolling roller (22), and the radial adjustment mechanism of the rolling roller includes a feed gear (13), a pressing shaft (23) and a pressing pad (15) connected in sequence from top to bottom. The side of the feed gear (13) is connected to the end face teeth of the synchronous gear (24), and the synchronous gear (24) is rotatably connected to the side of the outer side of the disc close to the rolling box body (27). The pressing shaft (23) is threadedly connected to the inner surface of the rolling box body (27). The feed gear (13) and the pressing shaft are connected to the end face teeth of the synchronous gear (24). (23) Through a spline connection, the radial driving mechanism of the roller polishing box includes a guide rail (5) and an oil cylinder (6) arranged on the top of the base (7), a sliding seat (4) is slidably connected to the guide rail (5), and the sliding seat (4) is fixedly connected to the protruding end of the oil cylinder (6). An adjustment motor (3) is provided above the sliding seat (4), and an adjustment gear (2) is connected to the output shaft of the adjustment motor (3), and the adjustment gear (2) is rotatably connected to the radial teeth on the outer side of the synchronous gear (24).

2. The rod rolling device according to claim 1, characterized in that: The polishing roller pressure adjustment mechanism includes, from top to bottom, a pressure cover (12), an adjustment shaft (11), an inner adjustment shaft (14), a pressure shaft (16) and a sliding block (18) connected in sequence, wherein the sliding block (18) is located above the roller seat (19), a sliding groove is provided on the outer side of the sliding block (18), a sliding key (28) matching the sliding groove is provided on the surface of the disc, and the sliding groove can be slidably sleeved in the sliding key (28), a disc spring groove is provided above the sliding block (18), a disc spring (17) is sleeved on the outer side of the pressure shaft (16), and the lower part of the disc spring (17) is located in the disc spring groove, the pressure cover (12) is fixedly connected to the top of the polishing box body (27), and the adjustment shaft (11) can be rotatably installed in the middle of the pressure cover (12).

3. The rod rolling device according to claim 1, characterized in that: A clamping ring (25) is provided on the top of the disc end surface near the synchronous gear (24).

4. The rod rolling device according to claim 1, characterized in that: A copper sleeve (21) is provided at the connection between the polishing roller (22) and the roller shaft (20).

5. The rod rolling device according to claim 1, characterized in that: A positioning key (26) is provided on the side of the polishing box body (27), and the polishing box body (27) is fixedly connected to the end face of the disc via the positioning key (26).

6. The rod rolling device according to claim 1, characterized in that: A positioning pin (29) is provided on the roller shaft (20), and the roller shaft (20) is fixedly connected to the roller seat (19) via the positioning pin (29).

7. A bar rolling method, using a bar rolling device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: The rod (10) to be processed passes through the inner hollow of the spindle (9) and extends out from the end face of the disc; S2: According to the pressing amount and processing diameter set by the rolling process parameters, the rolling pressure of the rolling roller (22) is adjusted by the rolling roller pressure adjustment mechanism, and the distance between the rolling box (1) and the rod (10) to be processed in the main shaft (9) is adjusted by driving the rolling roller radial adjustment mechanism through the rolling box radial drive mechanism; S3: The main motor drives the main shaft (9) to rotate, and the main shaft (9) drives the three roller burnishing boxes (1) installed on the end surface of the disc to rotate, and the roller burnishing roller (22) burnishes the rod (10) to be processed. The burnished rod can be discharged through the inner hole of the main shaft (9), thereby realizing the rolling processing of the long rod.

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