High-precision roller leveling mechanism

Abstract

The invention relates to a high-precision roller leveling mechanism which sequentially comprises a roller jacking base and a roller jacking top seat from top to bottom, and a roller jacking module installed on the roller jacking base drives the roller jacking top seat above to move in the vertical direction; the roller jacking module comprises a servo motor, a speed reducer and a worm gear lead screw lifter which are installed on a roller jacking base. The roller jacking supporting assembly comprises a supporting base installed on the roller jacking jacking base, supporting rollers are installed on the left side and the right side in a roller installation groove, and a V-shaped groove is formed in the portion, between the two supporting rollers, of the roller installation groove. The laser sensor is used for measuring the levelness of the roller, and the left and right center heights of the workpiece are adjusted according to the measured value to ensure that the workpiece is as high as the center of the chuck.

Description

Technical Field

[0001] The invention relates to the technical field related to mechanical processing, and in particular to a high-precision roller leveling mechanism. Background Art

[0002] Before processing, the roller needs to be clamped to stabilize the workpiece and center it. The structure of the traditional lathe adopts a three-jaw chuck on one side and a top on the other side. This structure is suitable for smaller and shorter workpieces. The roller laser engraving machine needs to process workpieces with a maximum length of about 6 meters. In order to ensure that the roller does not bend and deform around the axial direction, the top + three-jaw chuck is used on both sides. Because the weight of the workpiece is several tons, it must be hoisted by a crane, and the handling accuracy is low; and the large dead weight will cause the workpiece to bend downward. Therefore, high-precision requirements are put forward for the center position of the workpiece before clamping, and an auxiliary support method is required.

[0003] At present, the clamping of rollers is mostly done by manual handling or crane hoisting. The advantage of manual handling is that it can adapt to workpieces of various sizes, but they are all small products. The advantage of crane hoisting is that it can adapt to large-mass workpieces, but the clamping accuracy is low and it can only adapt to products with small diameter differences.

[0004] In view of the above-mentioned defects, the designers actively carried out research and innovation in order to create a high-precision roller leveling mechanism to make it more valuable for industrial use. Summary of the invention

[0005] In order to solve any of the above technical problems, the object of the present invention is to provide a high-precision roller leveling mechanism.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A high-precision roller leveling mechanism comprises, from top to bottom, a roller lifting base and a roller lifting top seat, a roller lifting support assembly is installed on the roller lifting top seat, and a roller lifting module installed on the roller lifting base drives the upper roller lifting top seat to move in the vertical direction;

[0008] The drum lifting module includes a servo motor, a reducer and a worm gear screw lifter respectively installed on the drum lifting base. The servo motor is connected to the input end of the reducer at the rear end, and the output end of the reducer is connected to the worm gear screw lifters on the left and right sides through a coupling. The worm gear screw lifter drives the upper drum lifting seat to move in the vertical direction.

[0009] A laser sensor is installed on the outer side of the front end of the roller lifting base through a sensor bracket;

[0010] The roller lifting support assembly includes a support seat installed on the roller lifting top seat, a roller mounting groove distributed along the left and right directions is opened on the inner side of the top of the support seat, support rollers are installed on the left and right sides of the roller mounting groove, and a V-shaped groove is opened on the roller mounting groove between the two support rollers.

[0011] As a further improvement of the present invention, a roller lifting fixing plate is arranged between the roller lifting base and the roller lifting top seat, and the roller lifting fixing plate is installed on the roller lifting base through a plurality of roller lifting struts.

[0012] As a further improvement of the present invention, a plurality of guide columns distributed along the vertical direction are installed on the roller lifting fixing plate, and the roller lifting top seat is connected to the guide columns.

[0013] As a further improvement of the present invention, a sensor stand is installed on one of the roller lifting pillars, and a number of photoelectric sensors are evenly distributed along the vertical direction on the sensor stand. A sensor sheet distributed along the vertical direction and compatible with the above-mentioned photoelectric sensors is installed at the bottom of the roller lifting top seat.

[0014] As a further improvement of the present invention, the supporting roller is installed in the roller installation groove through a roller installation shaft distributed along the front-to-back direction.

[0015] As a further improvement of the present invention, the rear end of the roller mounting shaft is mounted in the roller mounting groove via a retaining ring.

[0016] As a further improvement of the present invention, spacers are installed on the roller mounting shafts at the front and rear ends of the supporting roller.

[0017] By means of the above scheme, the present invention has at least the following advantages:

[0018] The present invention uses an installed laser sensor to measure the level of the roller, and then adjusts the left and right center heights of the workpiece according to the measured value to ensure that the height is the same as the center of the chuck.

[0019] The present invention can adapt to workpieces of various diameters through the roller lifting module and can also serve as a supporting seat during the processing of the long roller.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a high-precision roller leveling mechanism of the present invention;

[0023] Figure 2 yes Figure 1 The main view;

[0024] Figure 3 yes Figure 1 A schematic diagram of the structure of the middle drum lifting support assembly;

[0025] Figure 4 yes Figure 3 Schematic diagram of the internal structure.

[0026] The meanings of the various reference numerals in the figures are as follows.

[0027] Drum lifting base 1, drum lifting pillar 2, drum lifting fixing plate 3, drum lifting top seat 4, drum lifting support assembly 5, sensor bracket 6, laser sensor 7, servo motor 8, reducer 9, sensor stand 10, photoelectric sensor 11, induction sheet 12, worm gear screw lift 13, coupling 14, guide column 15, support seat 16, roller mounting groove 17, support roller 18, V-groove 19, roller mounting shaft 20, retaining ring 21, spacer sleeve 22. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. The components of the embodiment of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiment of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0030] like Figure 1 to Figure 4 As shown, a high-precision roller leveling mechanism includes a roller lifting base 1 and a roller lifting top seat 4 from top to bottom, a roller lifting support assembly 5 is installed on the roller lifting top seat 4, and the roller lifting module installed on the roller lifting base 1 drives the upper roller lifting top seat 4 to move in the vertical direction.

[0031] 1. The drum lifting module includes a servo motor 8, a reducer 9 and a worm gear screw lift 13 respectively installed on the drum lifting base 1. The servo motor 8 is connected to the input end of the reducer 9 at the rear end, and the output end of the reducer 9 is connected to the worm gear screw lift 13 on the left and right sides through the coupling 14. The worm gear screw lift 13 drives the upper drum lifting seat 4 to move in the vertical direction.

[0032] 2. A laser sensor 7 is installed on the outer side of the front end of the roller lifting base 1 through a sensor bracket 6.

[0033] 3. The roller lifting support assembly 5 includes a support seat 16 installed on the roller lifting top seat 4, and a roller mounting groove 17 distributed along the left and right directions is opened on the inner side of the top of the support seat 16. Support rollers 18 are installed on the left and right sides of the roller mounting groove 17, and a V-shaped groove 19 is opened on the roller mounting groove 17 between the two support rollers 18.

[0034] The supporting roller 18 is installed in the roller mounting groove 17 through the roller mounting shaft 20 distributed along the front and rear direction. The rear end of the roller mounting shaft 20 is installed in the roller mounting groove 17 through the retaining ring 21, and the roller mounting shaft 20 at the front and rear ends of the supporting roller 18 is installed with a spacer 22.

[0035] 4. A roller lifting fixing plate 3 is provided between the roller lifting base 1 and the roller lifting top seat 4. The roller lifting fixing plate 3 is installed on the roller lifting base 1 through a plurality of roller lifting pillars 2. A plurality of guide columns 15 distributed along the vertical direction are installed on the roller lifting fixing plate 3, and the roller lifting top seat 4 is connected to the guide columns 15.

[0036] 5. A sensor stand 10 is installed on one of the roller lifting pillars 2, and a number of photoelectric sensors 11 are evenly distributed along the vertical direction on the sensor stand 10. A sensing sheet 12 distributed along the vertical direction and compatible with the above-mentioned photoelectric sensors 11 is installed at the bottom of the roller lifting top seat 4.

[0037] The servo motor 8 is used as a power source and is installed on the input end of the reducer 9. The output end of the reducer 9 is connected to the worm screw elevator 13 through the coupling 14, so that the left and right sides can be raised and lowered synchronously, thereby driving the drum lifting support assembly 5 to rise and fall. The laser sensor 7 is used to measure distance.

[0038] During use, the present invention is provided with a set of roller leveling mechanisms on both sides of the workpiece. First, the laser sensors 7 on both sides measure the distance of the clamping part of the workpiece respectively. If the measured data is different from the preset parameters, the servo motor 8 drives the worm screw elevator 13 and drives the roller lifting support assembly 5 to lift and lower, so that the left and right ends of the workpiece can be lifted and lowered in the same direction or opposite directions respectively, so as to achieve the purpose of leveling it and making it equal to the center of the chuck at the same time. In addition, due to its large dead weight, long workpieces will produce downward bending deformation, and the closer to the center, the more serious it is. In order to meet high-precision processing indicators, this leveling mechanism adopts a roller lifting support assembly 5 (whose supporting part is two freely rotatable shaft parts, namely, support rollers 18), which can move to a suitable position below the workpiece as an auxiliary support during the processing.

[0039] The present invention adopts the form of laser sensor combined with servo motor + multi-stage reduction, which can ensure the center height of workpieces of different mass, length and diameter with high precision. At the same time, it can also serve as an auxiliary support structure in the processing process to meet high-precision processing indicators.

[0040] The installed laser sensor is used to measure the level of the roller, and then the left and right center heights of the workpiece are adjusted according to the measured value to ensure that it is at the same height as the center of the chuck.

[0041] The roller lifting module can not only adapt to workpieces of different diameters, but also act as a support seat during the processing of long rollers.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A high-precision roller leveling mechanism, comprising, from top to bottom, a roller lifting base (1) and a roller lifting top seat (4), a roller lifting support assembly (5) being mounted on the roller lifting top seat (4), a roller lifting module mounted on the roller lifting base (1) driving the upper roller lifting top seat (4) to move in a vertical direction; characterized in that: The drum lifting module comprises a servo motor (8), a reducer (9) and a worm gear screw lift (13) respectively mounted on the drum lifting base (1); the servo motor (8) is connected to the input end of the reducer (9) at the rear end; the output end of the reducer (9) is respectively connected to the worm gear screw lifts (13) on the left and right sides through a coupling (14); the worm gear screw lift (13) drives the upper drum lifting seat (4) to move in the vertical direction; A laser sensor (7) is installed on the outer side of the front end of the roller lifting base (1) via a sensor bracket (6); The roller lifting support assembly (5) comprises a support seat (16) installed on the roller lifting top seat (4), a roller mounting groove (17) distributed along the left-right direction is opened on the inner side of the top of the support seat (16), support rollers (18) are installed on both the left and right sides of the roller mounting groove (17), and a V-shaped groove (19) is opened on the roller mounting groove (17) between the two support rollers (18).

2. A high-precision roller leveling mechanism as claimed in claim 1, characterized in that: A roller lifting fixing plate (3) is provided between the roller lifting base (1) and the roller lifting top seat (4); the roller lifting fixing plate (3) is installed on the roller lifting base (1) via a plurality of roller lifting pillars (2).

3. A high-precision roller leveling mechanism as claimed in claim 2, characterized in that: A plurality of guide columns (15) distributed along the vertical direction are installed on the roller lifting fixing plate (3), and the roller lifting top seat (4) is connected to the guide columns (15).

4. A high-precision roller leveling mechanism as claimed in claim 2, characterized in that: A sensor stand (10) is installed on one of the roller lifting pillars (2), and a plurality of photoelectric sensors (11) are evenly distributed along the vertical direction on the sensor stand (10). A sensing sheet (12) distributed along the vertical direction and compatible with the above-mentioned photoelectric sensors (11) is installed at the bottom of the roller lifting top seat (4).

5. A high-precision roller leveling mechanism as claimed in claim 1, characterized in that: The supporting roller (18) is installed in the roller installation groove (17) via a roller installation shaft (20) distributed along the front-rear direction.

6. A high-precision roller leveling mechanism as claimed in claim 5, characterized in that: The rear end of the roller installation shaft (20) is installed in the roller installation groove (17) via a retaining ring (21).

7. A high-precision roller leveling mechanism as claimed in claim 5, characterized in that: Spacer sleeves (22) are installed on the roller installation shafts (20) at the front and rear ends of the support roller (18).

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