Guide rail straightening machine

Abstract

The invention provides a guide rail straightening machine, and belongs to the technical field of machinery. The guide rail straightening machine solves the problems that an existing guide rail straightening machine is not ideal in guide rail straightening effect and low in working efficiency. The guide rail straightening machine comprises a machine frame, a straightening assembly is arranged on the machine frame and comprises two gantry supports fixedly connected to the machine frame, the gantry supports are provided with an upper pressing roller and a lower pressing roller which are horizontally arranged, and a motor capable of driving the lower pressing roller to rotate is arranged on the gantry supports. The gantry support is provided with a lifting mechanism capable of driving the upper material pressing roller to ascend and descend relative to the lower material pressing roller, the side portion of the gantry support is provided with a left material pressing roller and a right material pressing roller which are vertically arranged, and the gantry support is provided with a driving mechanism capable of driving the left material pressing roller and the right material pressing roller to be synchronously close to or away from each other. The guide rail straightening machine has the advantages of being good in straightening effect and high in working efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of machinery, and relates to a straightening machine, in particular to a guide rail straightening machine. BACKGROUND

[0002] A guide rail is a groove or ridge made of metal or other materials, which can bear, fix, guide mobile devices or equipment and reduce friction. The longitudinal groove or ridge on the surface of the guide rail is used to guide, fix machine parts, special equipment, instruments, etc. The guide rail is also called a sliding rail, linear guide rail or linear sliding rail, which is used in linear reciprocating motion occasions. It has higher rated load than linear bearings and can bear certain torque. It can realize high-precision linear motion under high load. The guide rail can be divided into T-shaped and U-shaped, etc. The existing T-shaped guide rail is easy to bend due to collision during transportation. Therefore, before actual use, a correction device is needed to correct the T-shaped guide rail. However, in the existing correction device, the correction structure continuously hits and extrudes the guide rail to the side, which easily causes the supporting plate, fixing block and the like to shift, resulting in poor subsequent correction effect. Therefore, improvement is needed.

[0003] For example, a method and device for adjusting the straightness of a guide rail are disclosed in Chinese patent document (application number: 201910689085.1). The method includes placing a dial gauge on a beam on which the guide rail is installed, and attaching the measuring contact of the dial gauge to the deformed part of the guide rail. A positioning seat is arranged between the beam and the guide rail, and the positioning seat is laterally limited with the beam. An adjusting bolt is arranged on one side of the positioning seat, and a pressing block is arranged at the end of the adjusting bolt. The deformed part of the guide rail is straightened by rotating the adjusting bolt and pressing the pressing block. The present application also discloses an adjusting device. However, the adjusting device has poor correction effect and low work efficiency. SUMMARY

[0004] The purpose of the present application is to solve the above-mentioned problems existing in the prior art, and to provide a guide rail straightening machine with good straightening effect and high work efficiency.

[0005] The purpose of the present application can be achieved by the following technical scheme: a guide rail straightening machine, comprising a rack, a straightening assembly is arranged on the rack, the straightening assembly comprises two gantry supports fixedly connected to the rack, characterized in that the gantry supports are provided with horizontally arranged upper and lower pressing rollers, the gantry supports are provided with a motor capable of driving the lower pressing roller to rotate, the gantry supports are provided with a lifting mechanism capable of driving the upper pressing roller to lift relative to the lower pressing roller, the side of the gantry supports is provided with vertically arranged left and right pressing rollers, and the gantry supports are provided with a driving mechanism capable of driving the left and right pressing rollers to move close to or away from each other synchronously.

[0006] When working, the workpiece is sent to and abuts on the two lower pressing rollers, the upper pressing roller is driven to move downward by the lifting mechanism, the upper and lower end faces of the workpiece abut on the corresponding upper pressing roller and lower pressing roller, then the left pressing roller and the right pressing roller are driven to synchronously approach and abut on the left and right side walls of the workpiece, the lower pressing roller is driven to rotate by the motor to drive the workpiece to move by friction, and the upper and lower correction and the left and right correction are synchronously realized, so that the straightening effect is good and the working efficiency is high.

[0007] In the guide rail straightening machine, the side walls of the left pressing roller and the right pressing roller are annularly provided with corresponding type grooves. The left pressing roller and the right pressing roller are provided with the type grooves for embedding the left and right sides of the workpiece, so that the correction effect is improved.

[0008] In the guide rail straightening machine, the two sides of the gantry support are provided with sliding blocks, and the two ends of the upper pressing roller are inserted into the sliding blocks. The two ends of the upper pressing roller are embedded in the sliding blocks, so that the lifting of the upper pressing roller is facilitated, and the working is reliable and stable.

[0009] In the guide rail straightening machine, the lifting mechanism comprises a lead screw vertically arranged on the two sides of the gantry support, the lower end of the lead screw is inserted into the corresponding sliding block and is threadedly connected with the sliding block, and the upper end of the lead screw is fixedly connected with a hand wheel. Rotating the hand wheel drives the lead screw to rotate, thereby driving the sliding block to lift, so that the lifting of the upper pressing roller is realized, and the structure is simple and the working is reliable and stable.

[0010] In the guide rail straightening machine, the two sides of the gantry support are fixedly connected with vertically arranged guide rails, and the outer side of the sliding block is provided with a vertically arranged sliding groove, and the guide rail is embedded in the sliding groove. The guide rail is embedded in the sliding groove of the sliding block, so that the sliding block has a good guiding effect.

[0011] In the guide rail straightening machine, the two sliding blocks are fixedly connected through a horizontally arranged connecting rod, the lifting mechanism comprises a hydraulic cylinder whose cylinder body is fixedly connected to the gantry support, and the piston rod of the hydraulic cylinder is fixedly connected to the middle part of the connecting rod. The connecting rod is lifted by the hydraulic cylinder, thereby lifting the upper pressing roller through the sliding block, and the structure is simple and the working is reliable.

[0012] In the guide rail straightening machine, the upper and lower sides of the left and right pressure rollers are provided with upper and lower swing arms, the upper and lower swing arms are one-to-one corresponding in structure and position, the upper and lower swing arms are horizontally arranged, one end of the upper and lower swing arms is hinged to the gantry support, the upper and lower swing arms can horizontally swing, a rotating shaft is fixedly connected between the corresponding upper and lower swing arms, and the left and right pressure rollers are axially fixedly connected to the corresponding rotating shafts. The left and right pressure rollers are driven to swing by the horizontal swinging of the upper and lower swing arms, and the left and right pressure rollers are synchronously close to or far away from each other.

[0013] In the guide rail straightening machine, the driving mechanism comprises a hydraulic cylinder two horizontally fixedly connected to the gantry support, a swing rod is arranged at the outer end of the upper swing arm and connected to the piston rod of the hydraulic cylinder two, and the two ends of the swing rod are hinged to the piston rod of the hydraulic cylinder two and one end of the upper swing arm. The two upper swing arms are synchronously swung by the hydraulic cylinder two and the swing rod, and the structure is simple and the work is reliable.

[0014] In the guide rail straightening machine, one end of the upper and lower swing arms is fixedly connected with a connecting shaft, the gantry support is fixedly connected with a mounting block, and the connecting shaft penetrates through the mounting block.

[0015] In the guide rail straightening machine, the driving mechanism comprises a motor fixedly connected to the gantry support, a gear one is fixedly connected to the rotating shaft of the motor, a gear two is fixedly connected to the connecting shaft, the two gears two are engaged, and the gear one is engaged with one of the gears two. The motor drives the two connecting shafts to rotate in opposite directions through the transmission of the gear one and the gears two and the transmission of the two gears two, so that the left and right pressure rollers are synchronously close to or far away from each other, and the structure is simple and the work is reliable.

[0016] In the guide rail straightening machine, the rack is provided with a heating assembly, the heating assembly comprises a housing arranged on the rack, the housing is provided with through holes for the guide rail to pass through at both ends, and heating wires are arranged on the inner side walls of the housing. The workpiece in the housing is heated by the heating wires,

[0017] In the aforementioned guide rail straightening machine, a straightening bracket is provided on the frame, located between two gantry supports. The straightening bracket has two straightening wheels arranged vertically, with a guide rail passing between them. A hydraulic cylinder is mounted on the frame to raise and lower the straightening bracket. By raising and lowering the straightening bracket using the hydraulic cylinder, one of the straightening wheels presses against the workpiece, achieving straightening. This machine offers advantages such as good straightening effect and simple, reliable structure.

[0018] Compared with existing technologies, this guide rail straightening machine has the following advantages:

[0019] 1. The lifting mechanism drives the upper pressure roller to move downward, so that the upper and lower end faces of the workpiece abut against the corresponding upper and lower pressure rollers. Then, the drive mechanism drives the left and right pressure rollers to move closer and abut against the left and right sides of the workpiece. The motor drives the lower pressure roller to rotate, and the friction force drives the workpiece to move, realizing up-down and left-right correction at the same time. It has the advantages of good straightening effect and high work efficiency.

[0020] 2. The connecting rod is raised and lowered by a hydraulic cylinder, which in turn drives the upper pressure roller to rise and fall via a slider. This design has the advantages of simple structure and reliable operation.

[0021] 3. The hydraulic cylinder drives the rocker arm to swing synchronously, which has the advantages of simple structure and reliable operation;

[0022] 4. The straightening bracket is raised and lowered by a hydraulic cylinder, so that one of the straightening rollers presses against the workpiece to achieve straightening. It has the advantages of good straightening effect and simple and reliable structure. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the guide rail straightening machine.

[0024] Figure 2 This is a top view schematic diagram of the guide rail straightening machine.

[0025] Figure 3 yes Figure 2 A schematic diagram of the AA section.

[0026] Figure 4 yes Figure 2 BB cross-sectional diagram.

[0027] Figure 5 This is a schematic diagram of another type of drive mechanism for this guide rail straightening machine.

[0028] Figure 6 This is a schematic diagram of another type of drive mechanism for this guide rail straightening machine.

[0029] Figure 7 This is a schematic diagram of another type of lifting mechanism for this guide rail straightening machine.

[0030] Figure 8 This is a three-dimensional schematic diagram of another structure of the guide rail straightening machine.

[0031] In the diagram, 1. Frame; 2. Straightening assembly; 2a. Gantry support; 2b. Upper pressure roller; 2c. Lower pressure roller; 3. Lifting mechanism; 3a. Hydraulic cylinder; 4. Left pressure roller; 5. Right pressure roller; 6. Groove; 7. Drive mechanism; 7a. Motor; 7b. Gear 1; 7c. Gear 2; 8. Slider; 9. Lead screw; 10. Handwheel; 11. Guide rail; 12. Connecting rod; 13. Upper rocker arm; 14. Lower rocker arm; 15. Rotating shaft; 16. Hydraulic cylinder 2; 17. Swing rod; 18. Connecting shaft; 19. Mounting block; 20. Cover; 21. Straightening bracket; 22. Straightening wheel; 23. Hydraulic cylinder 3. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] like Figures 1 to 4 As shown, the guide rail straightening machine includes a frame 1, on which a straightening assembly 2 is provided. The straightening assembly 2 includes two gantry supports 2a fixed to the frame 1. The gantry supports 2a are provided with a horizontally arranged upper pressure roller 2b and a lower pressure roller 2c. The gantry supports 2a are provided with a motor that can drive the lower pressure roller 2c to rotate. The gantry supports 2a are provided with a lifting mechanism 3 that can drive the upper pressure roller 2b to rise and fall relative to the lower pressure roller 2c. The side of the gantry supports 2a is provided with a vertically arranged left pressure roller 4 and a right pressure roller 5. The side walls of the left pressure roller 4 and the right pressure roller 5 are all provided with corresponding grooves 6.

[0034] The gantry support 2a is equipped with a drive mechanism 7 that can drive the left pressure roller 4 and the right pressure roller 5 to move synchronously closer or further apart. A straightening support 21 is mounted on the frame 1, located between the two gantry supports 2a. The straightening support 21 has two vertically arranged straightening wheels 22, with a guide rail 11 passing between them. A hydraulic cylinder 23 is mounted on the frame 1 to raise and lower the straightening support 21. By raising and lowering the straightening support 21 via the hydraulic cylinder 23, one of the straightening wheels 22 presses against the workpiece, achieving straightening. This method offers advantages such as good straightening effect and simple, reliable structure.

[0035] Both sides of the gantry support 2a are fixed with vertically arranged guide rails 11. The guide rails 11 are equipped with sliders 8. The outer side of the sliders 8 is provided with vertically arranged grooves and the guide rails 11 are embedded in the grooves. The two ends of the upper pressure roller 2b are inserted on the sliders 8.

[0036] The lifting mechanism 3 includes lead screws 9 vertically arranged on both sides of the gantry bracket 2a. The lower end of the lead screw 9 is inserted into the corresponding slider 8 and threadedly connected to the slider 8. The upper end of the lead screw 9 is fixedly connected to a handwheel 10. Rotating the handwheel 10 drives the lead screw 9 to rotate, thereby driving the slider 8 to rise and fall, thus realizing the lifting and falling of the upper pressure roller 2b. It has the advantages of simple structure and reliable and stable operation.

[0037] As another way, such as Figure 7 As shown, the two sliders 8 are fixedly connected by a horizontally arranged connecting rod 12. The lifting mechanism 3 includes a hydraulic cylinder 3a whose cylinder body is fixedly connected to the gantry bracket 2a. The piston rod of the hydraulic cylinder 3a is fixedly connected to the middle part of the connecting rod 12. The hydraulic cylinder 3a drives the connecting rod 12 to rise and fall, thereby driving the upper pressure roller 2b to rise and fall through the slider 8. It has the advantages of simple structure and reliable operation.

[0038] The left and right pressure rollers 4 and 5 each have an upper rocker arm 13 and a lower rocker arm 14 on their upper and lower sides, respectively. The upper and lower rocker arms 13 and 14 correspond one-to-one in structure and position. They are horizontally positioned, with one end hinged to the gantry bracket 2a, allowing them to swing horizontally. A rotating shaft 15 is fixedly connected between the upper and lower rocker arms 13 and 14. The left and right pressure rollers 4 and 5 are axially fixed to the corresponding rotating shafts 15. A connecting shaft 18 is fixedly connected to one end of each upper and lower rocker arm 13 and 14. A mounting block 19 is fixedly connected to the gantry bracket 2a, and the connecting shaft 18 passes through the mounting block 19.

[0039] As another way, such as Figure 5 As shown, the drive mechanism 7 includes a motor 7a whose housing is fixedly connected to the gantry bracket 2a. A gear 7b is fixedly connected to the rotating shaft of the motor 7a, and gears 7c are fixedly connected to the connecting shafts 18. The two gears 7c mesh with each other, and gear 7b meshes with one of the gears 7c. The motor 7a drives the two connecting shafts 18 to rotate in opposite directions through the transmission between gear 7b and gear 7c, and then through the transmission between the two gears 7c. This enables the left pressure roller 4 and the right pressure roller 5 to move synchronously closer or further apart, which has the advantages of simple structure and reliable operation.

[0040] As another way, such as Figure 6 As shown, the drive mechanism 7 includes a second hydraulic cylinder 16 whose cylinder body is horizontally fixed to the gantry bracket 2a. The piston rod of the second hydraulic cylinder 16 and the outer end of the upper rocker arm 13 are provided with a swing arm 17. The two ends of the swing arm 17 are respectively hinged to the piston rod of the second hydraulic cylinder 16 and one end of the upper rocker arm 13. The swing arm 17 is driven to swing by the second hydraulic cylinder 16, which in turn drives the two upper rocker arms 13 to swing synchronously. This mechanism has the advantages of simple structure and reliable operation.

[0041] The frame 1 is provided with a straightening bracket 21, which is located between two gantry brackets 2a. The straightening bracket 21 is provided with two straightening wheels 22 arranged vertically, and the guide rail 11 passes through the space between the two straightening wheels 22. The frame 1 is provided with a hydraulic cylinder 23 that drives the straightening bracket 21 to rise and fall.

[0042] During operation, the workpiece is fed into and pressed against the two lower pressure rollers 2c. The handwheel 10 is turned to drive the lead screw 9 to rotate, thereby causing the slider 8 to descend and the upper pressure roller 2b to move downward, so that the upper and lower end faces of the workpiece abut against the corresponding upper pressure roller 2b and lower pressure roller 2c. The motor 7a drives the two connecting shafts 18 to rotate in opposite directions through the transmission of gear 1 7b and gear 2 7c, and then through the transmission of the two gears 2 7c. This achieves synchronous approach of the left pressure roller 4 and the right pressure roller 5, and makes the two sides of the workpiece embedded in the groove 6. The motor drives the lower pressure roller 2c to rotate, and the friction force drives the workpiece to move, realizing synchronous vertical and horizontal straightening. It has the advantages of good straightening effect and high working efficiency.

[0043] As a preferred option, such as Figure 8 As shown, a heating assembly is provided on the frame 1. The heating assembly is located at the front end of the straightening assembly 2. The heating assembly includes a cover 20 provided on the frame 1. The two ends of the cover 20 are provided with through holes for the guide rail 11 to pass through. Heating wires are provided on the upper and lower inner walls of the cover 20.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A guide rail straightening machine, comprising a frame (1), wherein a straightening assembly (2) is provided on the frame (1), the straightening assembly (2) comprising two gantry supports (2a) fixedly connected to the frame (1), characterized in that, The gantry support (2a) is provided with a horizontally arranged upper pressure roller (2b) and a lower pressure roller (2c). The gantry support (2a) is provided with a motor that can drive the lower pressure roller (2c) to rotate. The gantry support (2a) is provided with a lifting mechanism (3) that can drive the upper pressure roller (2b) to rise and fall relative to the lower pressure roller (2c). The side of the gantry support (2a) is provided with a vertically arranged left pressure roller (4) and a right pressure roller (5). The side walls of the left pressure roller (4) and the right pressure roller (5) are provided with corresponding grooves (6). The gantry support (2a) is provided with a drive mechanism (7) that can drive the left pressure roller (4) and the right pressure roller (5) to move closer or further apart synchronously.

2. The guide rail straightening machine according to claim 1, characterized in that, The gantry support (2a) is provided with sliders (8) on both sides, and the two ends of the upper pressure roller (2b) are inserted into the sliders (8).

3. The guide rail straightening machine according to claim 1, characterized in that, The lifting mechanism (3) includes lead screws (9) vertically arranged on both sides of the gantry bracket (2a). The lower end of the lead screw (9) is inserted into the corresponding slider (8) and threadedly connected to the slider (8). The upper end of the lead screw (9) is fixedly connected to a handwheel (10).

4. The guide rail straightening machine according to claim 1 or 2, characterized in that, The two sliders (8) are fixedly connected by a horizontally arranged connecting rod (12). The lifting mechanism (3) includes a hydraulic cylinder (3a) whose cylinder body is fixedly connected to the gantry bracket (2a). The piston rod of the hydraulic cylinder (3a) is fixedly connected to the middle part of the connecting rod (12).

5. The guide rail straightening machine according to claim 1 or 2, characterized in that, The left pressure roller (4) and the right pressure roller (5) are provided with an upper rocker arm (13) and a lower rocker arm (14) on their upper and lower sides respectively. The upper rocker arm (13) and the lower rocker arm (14) are one-to-one corresponding in structure and position. The upper rocker arm (13) and the lower rocker arm (14) are horizontally arranged. One end of the upper rocker arm (13) and the lower rocker arm (14) is hinged to the gantry bracket (2a) and the upper rocker arm (13) and the lower rocker arm (14) can swing horizontally. A rotating shaft (15) is fixedly connected between the corresponding upper rocker arm (13) and the lower rocker arm (14). The left pressure roller (4) and the right pressure roller (5) are axially fixedly connected to the corresponding rotating shaft (15).

6. The guide rail straightening machine according to claim 5, characterized in that, The drive mechanism (7) includes a hydraulic cylinder two (16) whose cylinder body is horizontally fixed on the gantry bracket (2a). The piston rod of the hydraulic cylinder two (16) and the outer end of the upper rocker arm (13) are provided with a swing rod (17). The two ends of the swing rod (17) are respectively hinged to the piston rod of the hydraulic cylinder two (16) and one end of the upper rocker arm (13).

7. The guide rail straightening machine according to claim 5, characterized in that, The upper rocker arm (13) and the lower rocker arm (14) are fixedly connected to one end of a connecting shaft (18), and the gantry bracket (2a) is fixedly connected to a mounting block (19), and the connecting shaft (18) passes through the mounting block (19).

8. The guide rail straightening machine according to claim 7, characterized in that, The drive mechanism (7) includes a motor (7a) whose housing is fixedly connected to the gantry bracket (2a). A gear 1 (7b) is fixedly connected to the shaft of the motor (7a), and a gear 2 (7c) is fixedly connected to the connecting shaft (18). The two gear 2 (7c) mesh with each other, and the gear 1 (7b) meshes with one of the gear 2 (7c).

9. The guide rail straightening machine according to claim 1 or 2, characterized in that, The frame (1) is provided with a heating assembly, which includes a cover (20) provided on the frame (1). The two ends of the cover (20) are provided with through holes for the guide rail (11) to pass through, and the upper and lower inner walls of the cover (20) are provided with heating wires.

10. The guide rail straightening machine according to claim 1 or 2, characterized in that, The frame (1) is provided with a straightening bracket (21), which is located between the two gantry brackets (2a). The straightening bracket (21) is provided with two straightening wheels (22) arranged vertically, and a guide rail passes between the two straightening wheels (22). The frame (1) is provided with a hydraulic cylinder (23) that drives the straightening bracket (21) to rise and fall.

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