Detection device and detection method for parallelism of double guide rails

Abstract

The invention discloses a detection device and a detection method for parallelism of double guide rails, solves the problem of low detection precision of double guide rail parallelism detection equipment in the prior art, and has the beneficial effect of improving the detection accuracy and precision. Comprising two oppositely-arranged supporting seats, the supporting seats can move along a guide rail, the supporting seat on one side is provided with a fixing plate, a movable piece of a vernier depth gauge is installed on the fixing plate, one end of a ruler piece is connected with a steel wire rope, the other end of the ruler piece is connected with a tension spring, the end of the tension spring is connected with the supporting seat on one side, and the steel wire rope penetrates through the supporting seat on the other side and can be locked. The steel wire rope can move relative to the supporting seats through which the steel wire rope passes so as to tension the steel wire rope, so that the straight ruler piece of the vernier depth gauge is in a working state, and the parallelism of the two guide rails is judged through the relative displacement of the straight ruler piece and the movable piece in the process that the two supporting seats simultaneously move relative to the two guide rails.

Description

Technical Field

[0001] The invention relates to the technical field of double guide rail parallelism detection, in particular to a double guide rail parallelism detection device and detection method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Laser cutting machines and other processing equipment need to design the bed into a split type according to the mechanical structure. Especially for large-format beds, due to the size restrictions of materials, welding, machining, transportation, assembly and other processes, split beds are usually encountered, and the span between the beds is particularly large. They are called A bed (reference bed) and B bed (auxiliary bed). Guide rails are installed on A bed and B bed, respectively called reference guide rails and auxiliary guide rails. The two sets of guide rails must be parallel.

[0004] However, the current split structure design will bring new process requirements to the subsequent assembly and after-sales links. That is, the two sets of guide rails must be parallel to each other during the assembly and delivery. The usual practice is to use a reference ruler or laser interferometer to first detect and straighten the reference guide rail to make it an ideal straight line, and then use this straight line as a reference to detect, adjust, re-detect, and adjust the auxiliary guide rail.

[0005] When the distance between the two guide rails is within the range of about 0.5 meters to 2 meters, after the reference guide rail is adjusted, use a rectangular tube (size is about 120*80) as a tooling, fix one end of the rectangular tube tooling to the slider of the reference guide rail, and then fix the dial indicator to the other end of the rectangular tube tooling, push the dial indicator, and use the gauge to detect the auxiliary guide rail on the B bed. There is a problem of large error. The rectangular tube tooling is in a cantilever state, with poor rigidity, and will tremble when moving, especially when the span exceeds 1 meter. As the span increases, the rectangular tube tooling will obviously sag and tremble, and the accuracy will be significantly reduced.

[0006] When the distance between the two guide rails exceeds 2 meters, the above method does not work; Chinese patent application CN2011202140821 discloses a large-span machine tool guide rail parallelism measuring device, which pulls the steel ruler from both sides through a steel wire rope and a tension spring, and is also provided with a laser alignment reference unit.

[0007] The inventors found that in the actual detection process, the above method does not limit the steel ruler along the direction of the guide rail, and in the process of moving the steel ruler along the guide rail, the steel ruler is displaced in the length and width directions of the guide rail, which is not convenient for reading data; in addition, the side where the tension spring is located must be installed on the reference guide rail. If it is installed in reverse, the tension spring and the steel wire rope pull the steel ruler, and the tension spring can be retracted. When the distance between the guide rails changes within a small range, the retractable tension spring can maintain balance with the steel wire rope, so that the position of the steel ruler will not change, thereby affecting the measurement result; one end of the steel wire rope is fixed by a screw and a nut. In the process of turning the screw, it is easy to reduce the height of one side of the steel wire, thereby affecting the measurement accuracy, and the structural setting is relatively complex and not compact enough.

[0008] In addition, in the prior art, the reference ruler used for machine tool guide rails of ordinary span is a marble ruler, which is relatively heavy, difficult to carry, and easy to break. The laser interferometer used has the problems of high precision, great difficulty in operation, and high equipment cost, which makes it impossible to promote it on a large scale. Summary of the invention

[0009] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a double guide rail parallelism detection device, which has high detection result accuracy and is easy to operate.

[0010] In order to achieve the above object, the present invention is implemented through the following technical solutions: A detection device for the parallelism of double guide rails comprises two support seats arranged opposite to each other, the support seats can move along the guide rails, a fixed plate is arranged on one side of the support seat, a movable part of a vernier depth gauge is installed on the fixed plate, the movable part of the vernier depth gauge is slidably matched with a ruler part of the vernier depth gauge, one end of the ruler part is connected to a wire rope, and the other end is connected to a tension spring, the end of the tension spring is connected to one side of the support seat, the wire rope passes through the other side of the support seat and can be locked, the wire rope can be moved relative to the support seat through which it passes to tighten the wire rope, so that the ruler part of the vernier depth gauge is in a working state, when the two support seats move relative to the two guide rails at the same time, the movable part of the vernier depth gauge moves along with the support seat where it is located, or when the ruler part of the vernier depth gauge moves along with the support seat where the wire rope is located, the parallelism of the two guide rails is judged by the relative displacement of the ruler part and the movable part.

[0011] In the above-mentioned detection device for parallelism of dual guide rails, the support seat where the tension spring is located can be installed on the reference guide rail or the auxiliary guide rail, and the two support seats can be installed according to needs, which is convenient for rapid installation on site.

[0012] In a double guide rail parallelism detection device as described above, one end of the tension spring is arranged through a hollow bolt, and the hollow bolt is connected to the support seat on one side through a threaded structure so that the hollow bolt drives the wire rope to move relative to the support seat to adjust the tension and straightening of the wire rope, and a wire rope lock is provided at the end of the hollow bolt away from the vernier depth gauge to tighten the wire rope after the wire rope is locked.

[0013] As described above, a double guide rail parallelism detection device, the support seat used to be connected to the tension spring is an inverted T-shape, the vertical part of the inverted T-shaped support seat is located in the area outside the two guide rails, and the distance between the vertical part of the inverted T-shaped support seat and one end of the support seat where it is located close to the other support seat is greater than the distance between the vertical part and the other end of the support seat where it is located, thereby ensuring the stability of the support seat where the tension spring is located and the entire detection device.

[0014] In the double-rail parallelism detection device as described above, the support seat for supporting the steel wire rope is L-shaped or inverted T-shaped, the vertical part of the support seat is located between the two rails, and the length of the horizontal part of the support seat is greater than the height of the vertical part, which is conducive to ensuring the stability of the detection device.

[0015] A double guide rail parallelism detection device as described above, wherein the support base comprises a bottom plate and a vertical plate, the bottom plate is vertically connected to the vertical plate, the fixed plate is vertically arranged with the vertical plate, the fixed plate and the vertical plate of the support base are spaced apart from each other, the vertical plates of the two support bases are arranged opposite to each other, a laser transmitter or an infrared transmitter is arranged on the vertical plate of the support base on one side, and the vertical plate of the support base on the other side is used to receive laser or infrared, the vertical plates on both sides are parallel to each other, and the sizes of the vertical plates on both sides are the same; Graduation lines are arranged along the width direction of the vertical board to facilitate determining that the support seats on both sides are located in the same plane, or, graduation lines are arranged on the vertical board opposite to the laser emitter or infrared emitter, and the position of the graduation lines is the same as the position of the laser emitter or infrared emitter.

[0016] In the double guide rail parallelism detection device as described above, in order to ensure the stability of the support seat structure and the compactness of the structural setting, the laser emitter or the infrared emitter is located on the same support seat as the steel wire rope, the laser emitter or the infrared emitter and the steel wire rope are located at the same height of the support seat, and the laser emitter or the infrared emitter and the steel wire rope are set at a distance.

[0017] In the double guide rail parallelism detection device as described above, the laser emitter or infrared emitter is located on the same support seat as the tension spring, the laser emitter or infrared emitter and the tension spring are located at the same height as the support seat, and a distance is set between the laser emitter or infrared emitter and the tension spring.

[0018] In the double-rail parallelism detection device as described above, the bottom plates of the two support seats are respectively connected to the sliders, and the sliders are engaged with the single-side rails so that the sliders can move along the rails.

[0019] In a second aspect, the present invention further discloses a method for detecting the parallelism of a double guide rail, using the double guide rail parallelism detection device, comprising the following contents: Install the support seat where the tension spring is located on the reference guide rail, and install the support seat where the wire rope is located on the auxiliary guide rail; or install the support seat where the tension spring is located on the auxiliary guide rail, and install the support seat where the wire rope is located on the reference guide rail; Tighten the wire rope to make it in a straight line and lock it; The steel wire rope is moved relative to the support seat where the steel wire rope is located, and the steel wire rope is further straightened, so that the tension spring is in a balanced force state, and the ruler member of the vernier depth gauge is in a working state; The two support seats move simultaneously relative to the two guide rails. Since the fixed plate is fixed to the support seat, the movable part of the vernier depth gauge keeps its position unchanged. When the position of the support seat where the wire rope is located changes along the auxiliary guide rail, the ruler part moves relative to the movable part. Alternatively, when the movable part of the vernier depth gauge is located on the auxiliary guide rail, when the distance between the auxiliary guide rail and the reference guide rail changes, the position of the ruler part of the vernier depth gauge remains unchanged due to the retractable tension spring. Since the fixed plate is fixed to the support seat, the fixed plate drives the movable part of the vernier depth gauge to change relative to the ruler part. Continue moving along the two guide rails, and use the vernier depth gauge to determine the change in distance of the auxiliary guide rail relative to the reference guide rail at different positions. If all values ​​at different positions are the same, it means that the two guide rails are parallel to each other. If the values ​​change, it means that the auxiliary guide rail is not parallel to the reference guide rail.

[0020] The beneficial effects of the present invention are as follows: 1) In the present invention, a fixed plate is provided on one side of the support seat, and the fixed plate is connected to the movable part of the vernier depth gauge to support the movable part. The movable part moves synchronously with the support seat on which it is located, so that the movable part and the ruler part can produce relative movement. Therefore, after the support seat on one side is installed on the reference guide rail and the support seat on the other side is installed on the auxiliary guide rail, the parallelism of the two guide rails can be determined by the movement of the movable part relative to the ruler part or the movement of the ruler part relative to the movable part, which is convenient for operation and facilitates the rapid acquisition of numerical changes through the vernier depth gauge; and the movable part of the vernier depth gauge is fixed, and the ruler part is effectively limited along the length direction of the guide rail to ensure that the ruler The parts or movable parts only move along the width direction of the guide rail, which ensures the accuracy and precision of the data; the wire rope passes through the support seat on one side, and the wire rope can be moved relative to the support seat to adjust the tension of the wire rope. During the adjustment process, the height of the wire rope will not be affected because the wire rope passes through the support seat, thereby ensuring the accuracy of the measurement data; and the positions of the support seats on both sides can be interchanged. Regardless of whether the support seat where the tension spring is located is on the reference guide rail or the auxiliary guide rail, the measurement can be carried out smoothly, which is convenient for the staff to quickly install on site, and there is no need to fix the support seat where the tension spring is located on the reference guide rail, thereby ensuring the overall detection efficiency.

[0021] 2) The present invention can solve the current parallelism detection problem of most split guide rails through the setting of the overall structure, and can replace the rectangular tube tooling, fundamentally avoiding the existence of errors, saving a lot of detection and calibration time, and solving the problem that the rectangular tube tooling is not easy to carry, the length cannot be changed and the adaptability is poor. For example, when the distance between the two guide rails is small, the excess wire rope can be put away, and when the distance between the two guide rails is large, a longer wire rope can be released, which is very convenient and efficient and can adapt to the detection of guide rails with different spacings; it is simple to manufacture and assemble, easy to learn and use, convenient and efficient, and can adapt to various on-site environments. The wire rope, hollow bolts, vernier depth gauge, tension spring and other components used in its accessories are all universal standard parts, and the accessories are easy to replace. The whole can be applied to the detection and calibration of the parallelism of the double guide rails for laser tube cutting machines.

[0022] 3) In the present invention, the wire rope is passed through the hollow bolt. After the wire rope is locked, the hollow bolt is installed on the support seat through the threaded structure, which drives the wire rope to move relative to the support seat during rotation, and can gradually tighten and straighten the wire rope, so that the tension spring is also in a force balance state, and the ruler part of the vernier depth gauge is in a working state, which will not affect the horizontality of the wire rope and is also convenient for smooth adjustment of the tension state of the wire rope.

[0023] 4) The support seat in the present invention has a simple structure, which is L-shaped or inverted T-shaped, convenient for storage and installation, and the length of the bottom plate is greater than the height of the vertical plate, which is conducive to ensuring the stability of the support seat. The vertical plate of the support seat used to support the tension spring exceeds the guide rail setting, and the vertical plate of the support seat on the other side is located between the two guide rails, which is conducive to ensuring the balance of the overall detection device, the stability of the detection device during movement, and the accuracy of the measurement results; the structure is relatively simple and compact, and the vertical plates on both sides are not only used to support the tension spring or wire rope, but can also be provided with a laser transmitter or an infrared transmitter, and the vertical plate on the other side forms a receiving plate. While the structure is compact, the scale lines set on the vertical plates are conducive to moving the support seats on both sides so that the support seats on both sides can be quickly placed on the same plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] Figure 1 It is a schematic diagram of the use status of a dual-guide rail parallelism detection device according to one or more embodiments of the present invention.

[0026] Figure 2 It is an enlarged schematic diagram of a dual-guide rail parallelism detection device in use according to one or more embodiments of the present invention.

[0027] Figure 3 It is a schematic diagram of a first support seat in a dual-guide rail parallelism detection device according to one or more embodiments of the present invention.

[0028] Figure 4 It is a front view of a first support seat in a dual-guide rail parallelism detection device according to one or more embodiments of the present invention.

[0029] Figure 5 It is a front view of a second support seat in a dual-guide rail parallelism detection device according to one or more embodiments of the present invention.

[0030] Figure 6 It is a top view of a second support seat in a dual-guide rail parallelism detection device according to one or more embodiments of the present invention.

[0031] Figure 7 It is a schematic diagram of a vernier depth gauge in a dual guide rail parallelism detection device according to one or more embodiments of the present invention.

[0032] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0033] Among them: 1. Reference guide rail, 2. Auxiliary guide rail, 3. First support seat, 4. Second support seat, 5. Hollow bolt, 6. Wire rope lock, 7. Wire rope, 8. Slider, 9. Vernier depth gauge, 10. Fixed plate, 11. Tension spring, 12. Laser pen, 13. Engraved line, 14. Laser beam; 3-1. First bottom plate, 3-2. First vertical plate, 4-1. Second bottom plate, 4-2. Second vertical plate; 9-1. Movable part, 9-2. Ruler part. DETAILED DESCRIPTION

[0034] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof; As introduced in the background technology, the dual-guide rail parallelism detection equipment in the prior art has the problem of low detection accuracy. In order to solve the above technical problem, the present invention proposes a dual-guide rail parallelism detection device.

[0036] Embodiment 1 In a typical embodiment of the present invention, reference is made to Figure 1 and Figure 2As shown, a double-guide rail parallelism detection device includes two support seats arranged opposite to each other, the support seats can move along the guide rails, one side of the support seat is provided with a fixed plate 10, the movable member 9-1 of the vernier depth gauge 9 is installed on the fixed plate 10, the movable member 9-1 of the vernier depth gauge 9 is slidably matched with the ruler member 9-2 of the vernier depth gauge 9, one end of the ruler member 9-2 is connected to the wire rope 7, and the other end is connected to the tension spring 11, the end of the tension spring 11 is connected to one side of the support seat, the wire rope 7 passes through the other side of the support seat and can be locked, the wire rope 7 can be moved relative to the support seat through which it passes to tighten the wire rope 7, at this time the wire rope 7 and the tension spring 11 are connected. The spring 11 is in a force balance state, so that the ruler member 9-2 of the vernier depth gauge 9 is in a working state (when the movable member 9-1 has a displacement change relative to the ruler member 9-2, or the ruler member 9-2 has a displacement change relative to the movable member 9-1, it can respond directly to ensure the accuracy of data detection). In the process of the two support seats moving simultaneously relative to the two guide rails, the movable member 9-1 of the vernier depth gauge 9 moves along with the support seat where it is located, or when the ruler member 9-2 of the vernier depth gauge 9 moves along with the support seat where the wire rope 7 is located, the parallelism of the two guide rails is judged by the relative displacement of the ruler member 9-2 and the movable member 9-1.

[0037] Taking into account the actual use requirements, for the convenience of installation, the support seat where the tension spring 11 is located can be installed on the reference guide rail 1 or the auxiliary guide rail 2, and the two support seats can be installed according to the needs, which is convenient for quick installation on site.

[0038] In this embodiment, the support seat for supporting the tension spring 11 is the first support seat 3 , and the support seat for supporting the steel wire rope is the second support seat 4 .

[0039] It should be noted that the support seat includes a bottom plate and a vertical plate, respectively. The bottom plate is vertically connected to the vertical plate. The length of the bottom plate can be 4-6 times the length of the vertical plate, which is conducive to ensuring the stability of the support seat structure. The fixed plate 10 is vertically arranged with the vertical plate. Of course, in other examples, the fixed plate 10 can also be inclined relative to the bottom plate. The fixed plate 10 and the vertical plate of the support seat where it is located are set at a distance. When in use, the fixed plate 10 is placed on the upper side of the guide rail, and the fixed plate 10 is arranged higher than the vertical plate. The vertical plates of the two support seats are arranged oppositely, and the vertical plate of the support seat on one side is provided with a laser transmitter or an infrared transmitter, and the vertical plate of the support seat on the other side is used to receive laser or infrared rays. The vertical plates on both sides are parallel to each other, and the sizes of the vertical plates on both sides are the same. Scale lines are arranged along the width direction of the vertical plates to facilitate determining that the support seats on both sides are located in the same plane, and the scale lines and the center point of the laser transmitter or the infrared transmitter are located in the same straight line. In this way, if the scale position where the emission point of the laser transmitter or the infrared transmitter is located corresponds to the scale position where the laser transmitter or the infrared transmitter is located, it means that the two support seats are located in the same plane.

[0040] It is easy to understand that in other examples, a score line 13 is set on the vertical plate opposite to the laser emitter or the infrared emitter, and the position of the score line 13 is the same as the position of the laser emitter or the infrared emitter. When the laser emitted by the laser emitter or the infrared emitted by the infrared emitter corresponds to the position of the score line 13, it means that the two are in the same plane.

[0041] Specifically, refer to Figure 3 and Figure 4 As shown, the first support seat 3 used to connect with the tension spring 11 is an inverted T-shape, and the first support seat 3 includes a first bottom plate 3-1 and a first vertical plate 3-2. The first vertical plate 3-2 is located in the area outside the two guide rails, and the distance between the first vertical plate 3-2 of the inverted T-shaped first support seat 3 and the first vertical plate 3-2 support seat near the second support seat 4 is greater than the distance between the first vertical plate 3-2 and the other end of the first support seat 3, thereby ensuring the stability of the support seat where the tension spring 11 is located and the entire detection device.

[0042] refer to Figure 5 and Figure 6 As shown, the second support seat 4 for supporting the steel wire rope 7 is L-shaped, and the second support seat 4 includes a second vertical plate 4-2, and the second vertical plate 4-2 is located between the two guide rails. The length of the second bottom plate 4-1 of the second support seat 4 is greater than the height of the second vertical plate 4-2, which is conducive to ensuring the stability of the second support seat 4 and the stability of the entire detection device.

[0043] In order to ensure the stability of the support seat structure and the compactness of the structural setting, the laser emitter or infrared emitter is located on the same support seat as the steel wire rope 7, the laser emitter or infrared emitter and the steel wire rope are located at the same height of the support seat, and the laser emitter or infrared emitter and the steel wire rope are set at a distance.

[0044] It is easy to understand that the laser emitter or infrared emitter is located on the same support base as the tension spring 11, the laser emitter or infrared emitter and the tension spring 11 are located at the same height of the support base, and there is a distance between the laser emitter or infrared emitter and the tension spring 11.

[0045] In this embodiment, the laser emitter may be an existing laser pen 12 , and the laser beam 14 emitted by the laser pen 12 is parallel to the steel wire rope 7 .

[0046] In addition, one end of the tension spring 11 is arranged through the hollow bolt 5, and the hollow bolt 5 is connected to the support seat on one side through a threaded structure so that the hollow bolt 5 can drive the wire rope to move relative to the support seat to adjust the tension and straightening of the wire rope 7. A wire rope lock buckle 6 is set at the end of the hollow bolt 5 away from the vernier depth gauge 9. The wire rope 7 can be tightened after passing through the wire rope lock buckle 6. The wire rope 7 can be locked by the wire rope lock buckle 6. After the wire rope 7 is locked, the hollow bolt 5 can be moved relative to the support seat to tighten and straighten the wire rope 7.

[0047] Among them, the wire rope lock buckle 6 is an existing wire rope lock buckle, and the wire rope lock buckle 6 is fixedly connected to the end of the hollow bolt 5 away from the vernier depth gauge 9.

[0048] In order to realize the movement of the support seat along the guide rail, the bottom plates of the two support seats are respectively connected to the slider 8, which can be specifically connected by bolts. The distance between one end of the bottom plate located on the inner side of the guide rail and the center line of the slider 8 is smaller than the distance between the other end of the bottom plate and the center line of the slider 8. The slider 8 is engaged with the single-sided guide rail so that the slider 8 can move along the guide rail. The slider 8 is provided with a groove, and the shape of the groove is the same as the cross-sectional shape of the guide rail. The slider 8 can enter the guide rail from one side of the guide rail through the groove and can move along the guide rail.

[0049] It should be noted that the steel wire rope 7 is selected to have a diameter less than or equal to 1 mm, which has the characteristics of being light, soft, non-elastic and fast in response.

[0050] It is easy to understand that the vernier depth gauge 9 is an existing vernier depth gauge, referring to Figure 7 As shown, the ruler piece 9-2 of the vernier depth gauge 9 is a steel ruler, and openings are respectively provided at both ends of the ruler piece 9-2 for connection with the tension spring 11 or the wire rope. The movable piece 9-1 of the vernier depth gauge 9 is a ruler frame that can slide relative to the ruler piece 9-2. The movable piece 9-1 has a slide groove, and the ruler piece 9-2 can move along the slide groove. The movable piece 9-1 includes a slide groove section, and two wing sections are symmetrically provided on both sides of the slide groove section. The wing sections are respectively provided with openings for connection with the fixed plate 10. A numerical display is provided at the vernier depth gauge 9, or the vernier depth gauge is not provided with a numerical display, because the ruler piece 9-2 and the movable piece 9-1 both have scale lines, which are convenient for reading the value. The accuracy of the detection device depends on the accuracy of the vernier depth gauge 9: 0.02mm.

[0051] The monitoring device provided in this embodiment has a fixed plate 10 disposed on one side of the support seat, and the fixed plate 10 is connected to the movable part 9-1 of the vernier depth gauge 9 to support the movable part 9-1. The movable part 9-1 of the vernier depth gauge 9 is fixed, and the ruler part 9-2 is effectively limited along the length direction of the guide rail to ensure that the ruler part 9-2 or the movable part 9-1 only moves along the width direction of the guide rail to ensure the accuracy of the data. The movable part 9-1 moves synchronously with the support seat where it is located, so that the movable part 9-1 and the ruler part 9-2 can produce relative movement, thereby the support seat on one side is installed on the reference guide rail 1. After the support seat on the other side is installed on the auxiliary guide rail 2, the distance between the zero scale line of the ruler member and the movable member 9-1 changes through the relative movement of the movable member 9-1 and the ruler member 9-2, so that the parallelism of the two guide rails can be quickly determined, and the vernier depth gauge 9 is convenient for rapid acquisition of data; the wire rope 7 passes through the support seat on one side, and the wire rope 7 is movable relative to the support seat to adjust the tension of the wire rope 7. During the adjustment process, because the wire rope 7 passes through the support seat, it will not affect the height of the wire rope 7, thereby ensuring the accuracy and precision of the measurement data and ensuring the detection efficiency.

[0052] Embodiment 2 This embodiment discloses a method for detecting the parallelism of a double guide rail, using a double guide rail parallelism detection device described in Embodiment 1, and includes the following contents: Install the support seat where the tension spring 11 is located on the reference guide rail 1, and install the support seat where the wire rope is located on the auxiliary guide rail 2; or install the support seat where the tension spring 11 is located on the auxiliary guide rail 2, and install the support seat where the wire rope 7 is located on the reference guide rail 1; Turn on the laser pen 12, observe the green light spot in the display area of ​​the support seat on the other side, and adjust the support seat so that the green light spot coincides with the engraved line 13 on the vertical plate; Pre-tighten the wire rope 7, open the wire rope lock 6, pull the wire rope 7 by hand until the wire rope 7 is in a straight line, and close the wire rope lock 6; One end of the wire rope 7 is directly fixed by the wire rope lock 6, and the other end is also fixed to the vernier seat after passing through the ruler piece 9-2 of the vernier depth gauge 9 and the tension spring 11. At this time, the hollow bolt 5 can be tightened with a wrench, and the bolt drives the wire rope lock 6 to move, gradually tightening and straightening the wire rope 7, and the tension spring 11 is also in a force balance state, and the ruler piece 9-2 of the vernier depth gauge is in a working state; Determine the value between the zero scale line of the ruler piece at the initial position and the movable piece 9-1 by using the vernier depth gauge 9 and record it as reading 1; The two support seats move simultaneously relative to the two guide rails. Since the fixed plate 10 is fixed to the support seat, the movable member 9-1 of the vernier depth gauge 9 maintains a constant position. When the position of the support seat where the wire rope 7 is located changes along the auxiliary guide rail 2, the ruler member 9-2 changes relative to the movable member 9-1. Alternatively, when the movable member 9-1 of the vernier depth gauge 9 is located on the auxiliary guide rail 2, when the distance between the auxiliary guide rail 2 and the reference guide rail 1 changes, the position of the ruler member 9-2 of the vernier depth gauge 9 remains constant due to the retractable tension spring 11. Since the fixed plate 10 is fixed to the support seat, the fixed plate 10 drives the movable member 9-1 of the vernier depth gauge 9 to change relative to the ruler member. Continue moving along the two guide rails, recording different readings 2, 3, ..., n at different positions, where n is greater than or equal to 3, until the entire auxiliary guide rail 2 is measured. Note: Reading 1, reading 2, reading 3..., reading n is not the actual distance between the two guide rails, but the change in the distance between the two guide rails. If all values ​​at different positions are the same, it means that the two guide rails are parallel to each other. If the values ​​change, it can be judged that the distance has increased or decreased based on the size of the change. The two guide rails have an "S-bend", which means that the auxiliary guide rail 2 is not parallel to the reference guide rail 1.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double guide rail parallelism detection device, characterized in that: The invention comprises two supporting seats arranged opposite to each other, the supporting seats can move along the guide rails, a fixed plate is arranged on one side of the supporting seats, a movable part of the vernier depth gauge is installed on the fixed plate, the movable part of the vernier depth gauge is slidably matched with the ruler part of the vernier depth gauge, one end of the ruler part is connected to a wire rope, and the other end is connected to a tension spring, the end of the tension spring is connected to one side of the supporting seats, the wire rope passes through the other side of the supporting seats and can be locked, the wire rope can be moved relative to the supporting seats through which it passes to tighten the wire rope, so that the ruler part of the vernier depth gauge is in a working state, when the two supporting seats move relative to the two guide rails at the same time, the movable part of the vernier depth gauge moves along with the supporting seat where it is located, or when the ruler part of the vernier depth gauge moves along with the supporting seat where the wire rope is located, the parallelism of the two guide rails is judged by the relative displacement of the ruler part and the movable part.

2. A double guide rail parallelism detection device according to claim 1, characterized in that: The support seat where the tension spring is located can be installed on a reference guide rail or an auxiliary guide rail.

3. A double guide rail parallelism detection device according to claim 1, characterized in that: One end of the tension spring is passed through a hollow bolt, and the hollow bolt is connected to the support seat on one side through a threaded structure so that the hollow bolt drives the wire rope to move relative to the support seat. A wire rope lock buckle is provided at the end of the hollow bolt away from the vernier depth gauge to tighten the wire rope after the wire rope is locked.

4. A double guide rail parallelism detection device according to claim 1, characterized in that: The support seat used to connect with the tension spring is an inverted T-shape, the vertical part of the inverted T-shaped support seat is located in the area outside the two guide rails, and the distance between the vertical part of the inverted T-shaped support seat and one end of the support seat where it is located close to the other support seat is greater than the distance between the vertical part and the other end of the support seat where it is located.

5. A double guide rail parallelism detection device according to claim 1, characterized in that: The support seat for supporting the steel wire rope is L-shaped or inverted T-shaped, the vertical part of the support seat is located between the two guide rails, and the length of the horizontal part of the support seat is greater than the height of the vertical part.

6. A double guide rail parallelism detection device according to claim 1, characterized in that: The support bases respectively include a bottom plate and a vertical plate, the bottom plate is vertically connected to the vertical plate, the fixed plate is vertically arranged with the vertical plate, the fixed plate and the vertical plate of the support base are spaced apart from each other, the vertical plates of the two support bases are arranged opposite to each other, a laser transmitter or an infrared transmitter is arranged on the vertical plate of the support base on one side, and the vertical plate of the support base on the other side is used to receive laser or infrared rays; Graduation lines are arranged along the width direction of the vertical board to facilitate determining that the support seats on both sides are located in the same plane, or, graduation lines are arranged on the vertical board opposite to the laser emitter or infrared emitter, and the position of the graduation lines is the same as the position of the laser emitter or infrared emitter.

7. A double guide rail parallelism detection device according to claim 6, characterized in that: The laser emitter or the infrared emitter is located on the same support base as the steel wire rope, the laser emitter or the infrared emitter and the steel wire rope are located at the same height as the support base, and a distance is set between the laser emitter or the infrared emitter and the steel wire rope.

8. A double guide rail parallelism detection device according to claim 6, characterized in that: The laser emitter or infrared emitter is located on the same support seat as the tension spring, the laser emitter or infrared emitter and the tension spring are located at the same height as the support seat, and there is a distance between the laser emitter or infrared emitter and the tension spring.

9. A double guide rail parallelism detection device according to claim 6, characterized in that: The bottom plates of the two support seats are respectively connected to the sliders, and the sliders are engaged with the single-side guide rails so that the sliders can move along the guide rails.

10. A method for detecting the parallelism of dual guide rails, characterized in that: A double guide rail parallelism detection device according to any one of claims 1 to 9, characterized in that it includes the following contents: Install the support seat where the tension spring is located on the reference guide rail, and install the support seat where the wire rope is located on the auxiliary guide rail; or install the support seat where the tension spring is located on the auxiliary guide rail, and install the support seat where the wire rope is located on the reference guide rail; Tighten the wire rope to make it in a straight line and lock it; The steel wire rope is moved relative to the support seat where the steel wire rope is located, and the steel wire rope is further straightened, so that the tension spring is in a balanced force state, and the ruler member of the vernier depth gauge is in a working state; The two support seats move simultaneously relative to the two guide rails. Since the fixed plate is fixed to the support seat, the movable part of the vernier depth gauge keeps its position unchanged. When the position of the support seat where the wire rope is located changes along the auxiliary guide rail, the ruler part changes its relative position relative to the movable part. Alternatively, when the movable part of the vernier depth gauge is located on the auxiliary guide rail, when the distance between the auxiliary guide rail and the reference guide rail changes, the position of the ruler part of the vernier depth gauge remains unchanged due to the retractable tension spring. Since the fixed plate is fixed to the support seat, the fixed plate drives the movable part of the vernier depth gauge to change relative to the ruler part. Continue moving along the two guide rails, and use the vernier depth gauge to determine the change in distance of the auxiliary guide rail relative to the reference guide rail at different positions. If all values ​​at different positions are the same, it means that the two guide rails are parallel to each other. If the values ​​change, it means that the auxiliary guide rail is not parallel to the reference guide rail.

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