Cross beam device

Abstract

The utility model relates to the technical field of machine tool parts, in particular to a cross beam device which comprises a cross beam body, a cross beam stand column is fixedly arranged at the lower end of the cross beam body, and a cross beam deflection correction mechanism is arranged in the cross beam body and comprises a cantilever, a cantilever stand column, a pull rod and an adjusting nut. Cantilever beams are arranged on the two sides in the cross beam body in the length direction and are made of flexible materials, cantilever beam stand columns are arranged at the two ends of each cantilever beam respectively, the lower ends of the cantilever beam stand columns are fixedly connected with a bottom plate of the cross beam body, pull rods are arranged between the cantilever beams and the bottom plate of the cross beam body, and the lower ends of the pull rods are fixedly connected with the bottom plate of the cross beam body. The beam body comprises a top plate, a bottom plate and a side plate, the structure is simple, the number of parts is small, the upper space of the beam is not occupied, deflection deformation of different positions of the beam can be corrected respectively, correction precision is high, and correction is rapid and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool components, in particular to a crossbeam device. Background Art

[0002] At present, mechanical crossbeam is widely used in the machine tool manufacturing industry. It is an important component that directly determines the accuracy of machine tools. Because the crossbeam is long, there are columns on both sides of the lower end of the crossbeam to support it. However, the part of the crossbeam between the two ends of the columns will sag downward due to its own weight, and the longer the crossbeam is, the greater the sag will be. The error caused by this is several times or even more than ten times the error of the crossbeam processing. This error is caused by the earth's gravity and cannot be avoided. After searching, CN118219045A crossbeam deflection compensation mechanism includes: a gantry crossbeam, two sides of the lower end of the gantry beam are respectively provided with There are columns, and both sides of the gantry beam are provided with a give way groove. The columns are located on one side of the gantry beam and are provided with a compensating power mechanism, and the compensating power mechanism includes a hydraulic telescopic cylinder and a wire rope; both sides of the upper end of the gantry beam are provided with support components, and the support components include a first support and a second support. The two first supports and the two second supports are symmetrically arranged on both sides of the gantry beam and the center of the gantry beam, and the wire rope is overlapped with the first support and the second support; a safety component is arranged in the first support and the second support, and the safety component includes an adaptive movable seat and a vertical guide rod.

[0003] The shortcomings of the above patent are: first, the structure of the above patent is complex, and many components are used. The supporting assembly is set at the upper end of the beam, which occupies the space above the beam and is not convenient for detecting the deflection of the beam surface; second, the beam is usually very long, and the deflection and deformation of the beam are inconsistent. The hydraulic telescopic cylinder and wire rope of the above patent compensate for the deflection of the beam. The wire rope has a large span and is an overall rough adjustment. It cannot be accurately adjusted to correspond to different positions of the beam. This makes the correction time of the beam deflection long, the correction accuracy is not high, and it is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies of the existing technology and to provide a beam device with a simple structure, few components, no occupation of the upper space of the beam, the deflection deformation at different positions of the beam can be corrected separately, the correction accuracy is high, and the correction is fast and convenient.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is:

[0006] A beam device includes a beam body, and beam columns are fixedly provided on both sides of the lower end of the beam body. The characteristic is that the interior of the beam body is hollow, and a beam deflection correction mechanism is provided inside the beam body. The beam deflection correction mechanism is connected to the bottom plate of the beam body to correct the deflection of the beam body, so as to adjust the bottom plate of the beam body through the beam deflection correction mechanism, and then adjust the entire beam body to achieve the effect of correcting the deflection of the beam body.

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod having a round shank and a bolt. said bolt has a round shank to contact with said linking rod.

[0008] The connecting portion of the utility model can be composed of a threaded hole and an external thread section. The threaded holes are arranged at intervals on the bottom plate of the beam body, and the lower part of the pull rod is provided with an external thread section. The lower end of the pull rod is threadedly connected to the beam body to facilitate the installation of the pull rod.

[0009] The connecting part of the present invention can also be composed of a connecting block and a positioning hole. Positioning holes are provided at intervals on the bottom plate of the beam body, and a connecting block is provided in the positioning hole. The lower end of the pull rod passes through the positioning hole and is fixedly connected to the connecting block. The upper end surface of the connecting block abuts against the inner wall of the positioning hole, so that the connecting block is driven to move upward through the pull rod. The connecting block abuts against the inner wall of the positioning hole, and moves the bottom plate upward.

[0010] The suspension beam columns of the present invention are located above the cross beam columns, so that the cross beam columns support the bottom plate of the cross beam, and the bottom plate of the cross beam supports the suspension beam columns.

[0011] The beam body of the present invention includes a top plate, a bottom plate and side plates. The top plate is fixedly connected to the bottom plate via the side plates in the front, back, left and right directions respectively. Adjustment holes are provided at intervals on the top plate. The adjustment holes are matched with the pull rods to facilitate rotating the adjustment nuts through the adjustment holes to adjust the deflection of the bottom plate. The bottom plate is fixed to the top plate via the side plates to adjust the deflection of the top plate.

[0012] Due to the adoption of the above structure, the utility model has the advantages of simple structure, few parts, no occupation of space above the beam, the deflection deformation at different positions of the beam can be corrected separately, the correction accuracy is high, and the correction is fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a main sectional view of the utility model.

[0015] Figure 3 This utility model Figure 2 Enlarged view of part A in the middle.

[0016] Figure 4 It is a top sectional view of the utility model.

[0017] Figure 5 This utility model Figure 2 side view.

[0018] Figure 6 It is a schematic diagram of installing the guide rail when the utility model is used.

[0019] Figure numerals: beam body 1, beam column 2, beam deflection correction mechanism 3, bottom plate 4, suspension beam 5, suspension beam column 6, pull rod 7, adjustment nut 8, top plate 9, side plate 10. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0021] A beam device includes a beam body 1, and beam columns 2 are fixedly provided on both sides of the lower end of the beam body 1. The characteristic is that the interior of the beam body 1 is hollow, and a beam deflection correction mechanism 3 is provided inside the beam body 1. The beam deflection correction mechanism 3 is connected to the bottom plate 4 of the beam body 1 to correct the deflection of the beam body 1, so as to adjust the bottom plate of the beam body through the beam deflection correction mechanism, and then adjust the entire beam body to achieve the effect of correcting the deflection of the beam body.

[0022] The utility model discloses the crossbeam deflection correction mechanism 3 including cantilever 5, cantilever stand 6, pull rod 7, adjusting nut 8, the crossbeam body 1 inside is equipped with cantilever 5 along its length direction both sides, the cantilever 5 adopts flexible material, the cantilever 5 both ends are equipped with cantilever stand 6 respectively, and the cantilever stand 6 upper end is fixedly connected with cantilever 5, and the lower end is fixedly connected with the bottom plate 4 of crossbeam body 1, be equipped with pull rod 7 between the cantilever 5 and the bottom plate 4 of crossbeam body 1, the pull rod 7 is along the crossbeam length direction interval arrangement, the pull rod 7 is equipped with pull rod perforation on the interval of the cantilever 5, and the pull rod 7 lower end is connected with the bottom plate 4 of crossbeam body 1 through the connecting portion, and the pull rod 7 upper end is equipped with adjusting nut 8 and is arranged in the cantilever 5, the pull rod 7 upper portion is equipped with external thread, and the adjusting nut 8 is threadedly connected with the pull rod 7, to facilitate the deflection deformation condition of the detection crossbeam body upper end surface, adjusts the adjusting nut on the pull rod of different positions, rotates the adjusting nut downward, promotes the pull rod to move upwards, and the pull rod moves upwards and drives the bottom plate of the crossbeam body of pull rod connecting place to move upwards, and the deflection of whole crossbeam body is corrected.

[0023] The connecting portion can be composed of a threaded hole and an external thread segment, the bottom plate 4 of the crossbeam body 1 is provided with the threaded hole at intervals, the lower part of the pull rod 7 is provided with the external thread segment, and the lower end of the pull rod 7 is threadedly connected with the crossbeam body 1, so that the pull rod is conveniently installed.

[0024] The connecting portion can also be composed of a connecting block and a positioning hole, the bottom plate 4 of the crossbeam body 1 is provided with the positioning hole at intervals, the connecting block is arranged in the positioning hole, the lower end of the pull rod 7 is fixedly connected with the connecting block by penetrating the positioning hole, and the upper end surface of the connecting block abuts against the inner wall of the positioning hole, so that the connecting block is driven to move upwards by the pull rod, the connecting block abuts against the inner wall of the positioning hole, and the bottom plate moves upwards.

[0025] The cantilever stand 6 is located above the crossbeam stand 2, so that the bottom plate of the crossbeam is supported by the crossbeam stand, and the bottom plate of the crossbeam supports the cantilever stand.

[0026] The crossbeam body 1 comprises a top plate 9, a bottom plate 4 and a side plate 10, the top plate 9 is fixedly connected with the bottom plate 4 through the side plate 10 from front to back and left to right, the top plate 9 is provided with the adjusting hole at intervals, the adjusting hole is arranged in cooperation with the pull rod 7, so that the adjusting nut is rotated through the adjusting hole, the deflection of the bottom plate is adjusted, the bottom plate is fixed through the side plate and the top plate, and then the deflection of the top plate is adjusted.

[0027] As shown in the accompanying drawings Figure 1-5The crossbeam body 1 of the present invention is composed of a top plate 9, a bottom plate 4 and side plates 10 therebetween. Side plates 10 are arranged on both sides of the top plate 9 along its length direction, or four side plates 10 are arranged on the front, back, left and right sides of the top plate 9. The number of side plates is installed according to demand. The upper ends of the side plates 10 are fixed to the top plate 9, and the lower ends are fixed to the bottom plate 4. The crossbeam deflection correction mechanism 3 is installed on the bottom plate 4. Crossbeam columns 2 are arranged on the front and back sides of the left and right sides of the lower end of the bottom plate 4. There are four crossbeam columns 2 in total. The crossbeam columns 2 are fixedly connected to the bottom plate 4 to support the crossbeam body 1. The suspension beam columns 6 are fixed on the bottom plate 4 just above the crossbeam columns 2. The crossbeam column 2 supports the suspension beam column 6 through the bottom plate 4. Suspension beams 5 are provided on both sides of the crossbeam body 1 along the length direction of the crossbeam body 1. The suspension beam 5 is located above the bottom plate 4. Both ends of the suspension beam 5 are fixedly connected to the suspension beam column 6. The suspension beam 5 is supported by the suspension beam column 6. A plurality of pull rods 7 are provided between the suspension beam 5 and the bottom plate 4. The lower end of the pull rod 7 is fixed to the bottom plate 4, and the upper end passes through the suspension beam 5 and is threadedly connected to the adjusting nut 8. After all the pull rods 7 are installed, the bottom plate 4 is fixedly connected to the lower end of the side plate 10 in the front, back, left and right directions. Adjustment holes are provided at intervals on the top plate 9. The number and position of the adjustment holes match the number and position of the pull rods 7.

[0028] When in use, a guide rail is installed on the beam body 1. The beam body 1 can be installed with one guide rail or two guide rails. The following are respectively described:

[0029] First, when two guide rails are installed on the beam body 1, as shown in the attached Figure 6 A guide rail is fixed on the upper end and side of the beam body 1. The upper guide rail is fixedly connected to the top plate 9, and the side guide rail is fixedly connected to the side plate 10.

[0030] During the inspection, the deflection deformation of the guide rail surface at the upper end of the beam body 1 is measured. The inspection instrument is an optical autocollimator or a laser interferometer, both of which are existing components. The optical autocollimator or the laser interferometer performs a linear inspection on the guide rail surface. The inspection method is the same as that of the existing technology and will not be described in detail.

[0031] When it is found that there is an uneven place on the guide rail surface, the operator will find the pull rod 7 below the uneven place, and then the operator will use a handheld tool, such as a wrench, to pass through the adjustment hole of the uneven place, turn the adjusting nut 8 on the pull rod 7, and rotate the adjusting nut 8 downward. While adjusting, use an optical autocollimator or a laser interferometer to detect until the guide rail surface at the upper end of the beam body 1 meets the design accuracy requirement. The utility model rotates the adjusting nut 8 on the pull rod 7 to adjust the deflection of the bottom plate 4. The bottom plate 4 is fixed to the top plate 9 through the side plates 10. The bottom plate 4 will change the deflection of the top plate 9 through the side plates 10. After adjustment, it will be tested again. If there is an uneven place, it will be adjusted again. This is repeated many times until the guide rail surface at the upper end of the beam body 1 meets the design accuracy requirement.

[0032] Second, when a guide rail is installed on the beam body 1, the guide rail can be hung on the beam body 1, that is, the guide rail is fixed on the side plate 10 of the beam body 1, the upper end of the guide rail is fixed to the top plate 9 of the beam body 1, and the lower end of the guide rail is fixed to the bottom plate 4 of the beam body 1.

[0033] During the inspection, the deflection and deformation of the guide rail surface at the upper end of the beam body 1 are measured. The instrument and measuring method are the same as above. When the guide rail surface is found to be uneven, the operator finds the pull rod 7 below the uneven place, and then the operator holds a tool, such as a wrench, through the adjustment hole of the uneven place, and turns the adjusting nut 8 on the pull rod 7. The adjusting nut 8 is rotated downward and adjusted while being inspected with an optical autocollimator or a laser interferometer until the guide rail surface at the upper end of the beam body 1 meets the design accuracy requirement. The utility model rotates the adjusting nut 8 on the pull rod 7 to adjust the deflection of the bottom plate 4. The bottom plate 4 is fixed to the top plate 9 through the side plates 10. The bottom plate 4 will change the deflection of the top plate 9 through the side plates 10. At the same time, the bottom plate 4 is also fixed to the top plate 9 through the guide rail. After the bottom plate 4 is adjusted, it will also drive the top plate to adjust through the guide rail. After adjustment, it is inspected again. If there is an uneven place, it is adjusted again. This is repeated many times until the guide rail surface at the upper end of the beam body 1 meets the design accuracy requirement.

[0034] The above two guide rail installation methods can be selected according to needs. Compared with the existing technology, the utility model has a simple structure, fewer components, and the beam deflection correction mechanism 3 is installed inside the beam body 1, which does not occupy the space on the upper end surface of the beam body 1, making it convenient to install the guide rail and detect the deflection of the guide rail surface. The beam body 1 in the utility model is composed of a top plate 9, a side plate 10 and a bottom plate 4. The bottom plate 4 is connected to the top plate 9 through the side plate 10. To adjust the deflection of the bottom plate 4, the bottom plate 4 will change the deflection of the top plate 9 through the side plate 10, that is, by adjusting the deflection deformation of the bottom plate 4, the deflection deformation of the top plate 9 is adjusted, and then the beam deflection correction mechanism 3 is operated according to the deflection deformation of the top plate 9 until the top plate The deflection meets the requirements, so it is very convenient to adjust the deflection of the guide rail surface through the crossbeam deflection correction mechanism 3. The suspension beam 5 in the utility model is flexible, and the distance between the pull rod 7 and the bottom plate 4 is adjusted by the suspension beam 5. The adjusting nut 8 is rotated to drive the pull rod 7 to rise, and the distance between the pull rod 7 and the bottom plate 4 becomes shorter, driving the bottom plate 4 to rise. The bottom plate 4 drives the top plate 9 to rise through the side plate 10 to achieve deflection correction of the top plate 9. Multiple pull rods 7 are set between the suspension beam 5 and the bottom plate 4, which can realize precise adjustment of different positions of the bottom plate 4, and then realize precise adjustment of different positions of the top plate 9. With the existing optical autocollimator or laser interferometer detection equipment, detection is convenient and fast.

[0035] Due to the adoption of the above structure, the utility model has the advantages of simple structure, few parts, no occupation of space above the beam, the deflection deformation at different positions of the beam can be corrected separately, the correction accuracy is high, and the correction is fast and convenient.

Claims

1. A crossbeam device, comprising a crossbeam body (1), wherein crossbeam columns (2) are fixedly provided on both sides of the lower end of the crossbeam body (1), characterized in that: The interior of the crossbeam body (1) is hollow, and a crossbeam deflection correction mechanism (3) is provided inside the crossbeam body (1). The crossbeam deflection correction mechanism (3) is connected to the bottom plate (4) of the crossbeam body (1) to correct the deflection of the crossbeam body (1). The crossbeam deflection correction mechanism (3) includes a suspension beam (5), a suspension beam column (6), a pull rod (7), and an adjusting nut (8). The interior of the crossbeam body (1) is provided with suspension beams (5) on both sides along its length direction. The suspension beam (5) is made of flexible material. Suspension beam columns (6) are provided at both ends of the suspension beam (5). The suspension beam columns (6) are provided at the ends of the suspension beam (5). The upper end of (6) is fixedly connected to the suspension beam (5), and the lower end is fixedly connected to the bottom plate (4) of the beam body (1). A pull rod (7) is provided between the suspension beam (5) and the bottom plate (4) of the beam body (1). The pull rods (7) are arranged at intervals along the length direction of the beam. Pull rod through holes are provided at intervals on the suspension beam (5). The lower end of the pull rod (7) is connected to the bottom plate (4) of the beam body (1) through a connecting portion. The upper end of the pull rod (7) passes through the suspension beam (5) and is provided with an adjusting nut (8). The upper part of the pull rod (7) is provided with an external thread, and the adjusting nut (8) is threadedly connected to the pull rod (7).

2. A crossbeam device according to claim 1, characterized in that: The connecting portion is composed of a threaded hole and an external threaded section. The bottom plate (4) of the beam body (1) is provided with threaded holes at intervals. The lower part of the pull rod (7) is provided with an external threaded section. The lower end of the pull rod (7) is threadedly connected to the beam body (1).

3. A crossbeam device according to claim 1, characterized in that: The connecting portion is composed of a connecting block and a positioning hole. Positioning holes are provided at intervals on the bottom plate (4) of the beam body (1). A connecting block is provided in the positioning hole. The lower end of the pull rod (7) passes through the positioning hole and is fixedly connected to the connecting block. The upper end surface of the connecting block abuts against the inner wall of the positioning hole.

4. A crossbeam device according to claim 1, 2 or 3, characterized in that: The cantilever beam column (6) is located above the crossbeam column (2).

5. A crossbeam device according to claim 1, 2 or 3, characterized in that: The crossbeam body (1) comprises a top plate (9), a bottom plate (4) and side plates (10); the top plate (9) is fixedly connected to the bottom plate (4) via the side plates (10); adjustment holes are provided at intervals on the top plate (9); the adjustment holes are arranged in coordination with the pull rods (7).

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