Gantry truss

Abstract

The invention relates to a gantry truss. The gantry truss comprises a cross beam; the two bases support the two ends of the cross beam respectively, and the bottoms of the bases are fixed to the ground; the two driving modules are fixedly mounted on the tops of the corresponding bases correspondingly, and the driving modules drive the cross beam to move in the Y-axis direction; the first assembly is fixedly connected with the lower surface of one end of the cross beam and installed on the corresponding driving module, and the first assembly enables the cross beam to move in the X-axis direction and the Y-axis direction; the second assembly is fixedly connected with the lower surface of the other end of the cross beam and installed on the corresponding driving module, and the second assembly enables the cross beam to move in the Y-axis direction. The gantry truss provided by the invention can automatically adapt to the position change of the gantry truss for the length size deformation caused by temperature change, eliminates the possible stress, avoids the jamming phenomenon, and effectively prolongs the service life. The device can automatically adapt to the influence of different position deviations of the base or the stand column during installation, the overall deformation is smaller, and the durability is higher.

Description

Technical Field

[0001] The present invention belongs to the technical field of gantry truss structures, and more specifically, relates to a gantry truss capable of automatically eliminating errors caused by changes in beam length dimensions due to stress deformation and temperature changes. Background Art

[0002] In the new energy industry, such as hot wire CVD or other photovoltaic production lines, gantry truss structures are widely used in automated production line equipment. In large-span gantry trusses or other similar structures, the impact of ambient temperature changes on the length-direction size changes of the gantry trusses, as well as the connection and installation method of the span beam of the truss structure and the drive module, play a decisive role in the main load-bearing of the entire machine and the long-term stable operation of the equipment. Therefore, factors such as the rationality of its installation method and connection structure have become key issues for the equipment.

[0003] The connection between the span beam of the gantry truss and the drive module is usually installed in a fixed manner. The change in temperature causes a large expansion and contraction amount on the size (especially the length size of the large span). The equipment cannot adapt to this change and is prone to large stress and deformation. In addition, the installation method of fixed size needs to be fixed after measurement and calibration by high-precision instruments, or the installation gap is increased to accommodate large installation errors. However, these methods usually have disadvantages such as long debugging cycle and poor stability. In other words, the existing gantry truss adopts a fixed connection method, that is, the connection between the span beam of the gantry truss and the drive module is installed in a direct connection method (the structure is fixed when not driven). This method cannot adapt to the situation where the deformation itself is large, the temperature difference is high, and the working conditions are complex; and it is easy to cause large movement resistance, jamming, power loss and other phenomena. In order to avoid such phenomena, it is often necessary to fix it after repeated measurement and calibration by high-precision instruments, or increase the installation gap at the connection to adapt to large installation errors. However, these measures usually cannot fundamentally solve the problem, and there are continuous uncontrollable factors that are prone to occur, the risk is relatively large, and the debugging cycle is long and the debugging cost is high.

[0004] Therefore, it is urgent to design a gantry truss structure that can solve the above-mentioned technical problems. Summary of the invention

[0005] In order to overcome the deficiencies of existing technologies in the new energy industry, such as hot wire CVD or other photovoltaic production lines, the present invention provides a beam or truss with a large span, which can automatically adapt to the relative size and shape changes when the length direction size and shape are sensitive to temperature changes, avoid or eliminate the deformation and distortion that may occur, and ensure the long-term stable operation of the equipment. That is, the purpose of the present invention is to provide a gantry truss, the connection method of the gantry truss span beam is mainly to use a slide rail (or a dovetail slider, or other slide rails or similar structures) at one end and an adjustment block (or an equal height block, or other similar structures) at the other end to connect the two ends of the span beam of the gantry truss structure, which can not only solve the influence of uncontrollable risk factors such as stress deformation and dimensional expansion caused by temperature changes, but also ensure the effective connection of the driving module of the beam on the base or column at both ends, meet its functionality, reduce the debugging time and debugging cost, effectively shorten the installation period, and play a decisive role in the long-term stable operation of the gantry truss.

[0006] In order to solve the above technical problems or achieve the above objectives, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a gantry truss, comprising:

[0008] beam;

[0009] Two bases, the two bases support two ends of the beam respectively, and the bottoms of the bases are fixed on the ground;

[0010] Two driving modules, the two driving modules are respectively fixedly mounted on the top of the corresponding base, and the driving modules drive the crossbeam to move along the Y-axis direction;

[0011] A first component, the first component is fixedly connected to the lower surface of one end of the beam and is installed on the corresponding driving module, and the first component enables the beam to move along the X-axis direction and the Y-axis direction;

[0012] The second component is fixedly connected to the lower surface of the other end of the beam and is installed on the corresponding driving module. The second component enables the beam to move along the Y-axis direction.

[0013] In one embodiment of the present invention, the first component adaptively moves along the X-axis direction as the length dimension of the beam expands or contracts.

[0014] In one embodiment of the present invention, the first component is a slide rail, a dovetail slider or a linear bearing plus a guide rod, and the second component is an adjustment block or an equal height block.

[0015] In one embodiment of the present invention, when the first component is a dovetail slider, the dovetail slider is installed on a dovetail fixing seat, the dovetail slider cooperates with the dovetail shape of the dovetail fixing seat, and the dovetail slider slides along the dovetail shape relative to the dovetail fixing seat.

[0016] In one embodiment of the present invention, the driving module adopts a linear motor as a driving method.

[0017] In one embodiment of the present invention, the driving module includes a screw module, a belt module and a gear rack module.

[0018] In one embodiment of the present invention, the base is in the form of a column.

[0019] In one embodiment of the present invention, the first component has a small angular deflection error relative to the second component when moving along the Y-axis.

[0020] The technical solution provided by the present invention has the following advantages compared with the prior art:

[0021] The gantry truss provided by the present invention can automatically adapt to the position change of the length dimension deformation caused by temperature change, eliminate the stress that may be generated, avoid the jamming phenomenon, and effectively improve the service life. The gantry truss provided by the present invention can fully guarantee the structural stability after installation, automatically adapt to the influence of different position deviations of the base or column during installation, and has smaller overall deformation and higher durability. The present invention has a simple structure, is stable and reliable, and is easy to debug and has a short debugging cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings required for use in the description of the embodiments or the prior art are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A front view in the XZ axis direction of a gantry truss provided in one embodiment of the present invention is shown;

[0025] Figure 2 Shows Figure 1 Side view of the gantry truss in the YZ axis direction;

[0026] Figure 3 A front view in the XZ axis direction of a gantry truss provided in another embodiment of the present invention is shown;

[0027] Figure 4 Shows Figure 3 A side view of the left end of the gantry truss;

[0028] Figure 5 Shows Figure 3 Side view of the right side end of the gantry truss.

[0029] Among them, 1. crossbeam; 2. base; 3. adjustment block; 4. slide rail; 5. drive module; 6. column; 7. equal height block; 8. dovetail slider; 9. dovetail fixing seat. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purposes, features and advantages of the present disclosure, the embodiments of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0032] like Figure 1-5 As shown, the present invention provides a gantry truss, including: a crossbeam 1, two bases 2 or two columns 6, two driving modules 5, a first component (for example, a slide rail 4 or a dovetail slider 8) and a second component (for example, an adjustment block 3 or an equal height block 7). The two bases 2 or two columns 6 are respectively located at the two ends of the crossbeam 1 and are used to support the two ends of the crossbeam 1, and the bottom of the base 2 or the column 6 is fixed on the ground. The two driving modules 5 are respectively fixedly installed on the top of the corresponding base 2 or column 6, and the driving module 5 drives the crossbeam 1 to move along the Y-axis direction; the first component (for example, the slide rail 4 or the dovetail slider 8) is fixedly connected to the lower surface of one end of the crossbeam 1 and is installed on the corresponding driving module 5, and the first component (for example, the slide rail 4 or the dovetail slider 8) enables the crossbeam 1 to move along the X-axis direction and the Y-axis direction. The second component (for example, the adjustment block 3 or the equal height block 7) is fixedly connected to the lower surface of the other end of the beam 1 and installed on the corresponding driving module 5. The second component (for example, the adjustment block 3 or the equal height block 7) enables the beam 1 to move along the Y-axis direction.

[0033] Through the above technical solution of the present invention, the gantry truss provided by the present invention can automatically adapt to its position change when the length dimension is deformed due to temperature change, eliminate the stress that may be generated, avoid the jamming phenomenon, and effectively improve the service life. The gantry truss provided by the present invention fully guarantees the structural stability after installation, can automatically adapt to the influence of different position deviations of the base or column during installation, has smaller overall deformation, and higher durability.

[0034] In the above gantry truss of the present invention, the first component can adaptively move along the X-axis direction as the length of the beam 1 expands and contracts. For the length deformation of the gantry truss caused by temperature changes, the first component can automatically adapt to its position change.

[0035] In the above-mentioned gantry truss of the present invention, if Figure 1-2 As shown, the first component is the slide rail 4 , and the second component is the adjustment block 3 .

[0036] In the above-mentioned gantry truss of the present invention, if Figure 4-5 As shown, the first component is the dovetail slider 8 and the second component is the contour block 7 .

[0037] In the above-mentioned gantry truss of the present invention, if Figure 5 As shown, the dovetail slider 8 is installed on the dovetail fixing seat 9, the dovetail slider 8 matches the dovetail shape of the dovetail fixing seat 9, and the dovetail slider 8 slides along the dovetail shape relative to the dovetail fixing seat 9.

[0038] In the above-mentioned gantry truss of the present invention, the first component can also be a linear bearing plus a guide rod or other sliding structures similar to the slide rail 4 or the dovetail slider 8, and the second component can also be other structures similar to the adjustment block 3 or the equal height block 7.

[0039] In the above-mentioned gantry truss of the present invention, the driving module 5 preferably adopts a linear motor as a driving method.

[0040] In the above-mentioned gantry truss of the present invention, the driving module 5 may include a screw module, a belt module, a gear rack module, and the like.

[0041] In the above-mentioned gantry truss of the present invention, the first component has a smaller angle deflection error relative to the second component when moving along the Y axis.

[0042] The above technical solution of the present invention is described in detail below through specific embodiments.

[0043] Example 1

[0044] Figure 1 and 2 The front view in the XZ axis direction and the side view in the YZ axis direction of a gantry truss provided in one embodiment of the present invention are shown respectively. Figure 1-2 As shown, a gantry truss includes: a crossbeam 1, two bases 2, an adjustment block 3, a slide rail 4, and two drive modules 5. The two bases 2 are respectively located at the two ends of the crossbeam 1 and are used to support the two ends of the crossbeam 1, and the bottom of the base 2 is fixed on the ground. The two drive modules 5 are respectively fixedly installed on the top of the corresponding base 2, and the drive module 5 drives the crossbeam 1 to move along the Y-axis direction. The slide rail 4 is connected to one end of the crossbeam 1 (such as Figure 1 The lower surface of the adjusting block 3 is fixedly connected to the other end of the beam 1 (as shown in the figure) and mounted on the corresponding driving module 5. The slide rail 4 enables the beam 1 to move along the X-axis direction and the Y-axis direction. Figure 1 The lower surface of the right side end shown in the figure is fixedly connected and installed on the corresponding driving module 5, and the adjustment block 3 makes the beam 1 move along the Y-axis direction.

[0045] like Figure 1 As shown, in the front view in the XZ axis direction, the slide rail 4 itself is a component, relative to the same side ( Figure 1 The base 2 fixed to the ground and the driving module 5 fixedly mounted on the base 2 can drive the beam 1 to move in the X-axis direction (left and right) (such as Figure 1 The movement direction arrow indicates that the block 3 cannot move in the Z-axis direction or rotate. The adjustment block 3 is relative to the same side ( Figure 1 The base 2 fixed to the ground and the driving module 5 fixedly mounted on the base 2 (in the middle right side) cannot move or rotate in the Z-axis direction (up and down) and the X-axis direction (left and right).

[0046] In the above-mentioned embodiment of the present invention, the slide rail 4 can adaptively move along the X-axis direction as the length of the beam 1 is expanded or contracted.

[0047] Specifically, in this Figure 1 In the front view in the XZ axis direction, one side of the beam 1 is equivalent to the fixed end (adjustment block 3 side), and the other side is the movable end (slide rail 4 side).

[0048] In order to avoid the large dimensional deformation of the beam 1 in the length direction cannot be eliminated, causing other dimensional changes, causing movement deformation, damaging key parts and components or reducing movement accuracy, you can use Figure 1 The influence of stress and deformation can be eliminated in a way. For example, in the length direction of the beam 1, the stress deformation of the beam 1 and the expansion and contraction of the length dimension caused by temperature change can be automatically eliminated by the adaptive movement of the slide rail 4 at the movable end of the beam 1, thereby ensuring that the machine equipment can operate stably for a long time. The adaptive function of the slide rail 4 at the movable end of the beam 1 effectively reduces the relative accuracy requirements of the installation position of the base 2 and the drive module 5 at both ends of the beam 1 in the length direction (X axis).

[0049] like Figure 2 As shown, in the side view in the YZ axis direction, the beam 1 and the slide rail 4 as well as the beam 1 and the adjustment block 3 can move in the Y axis direction (front and back) relative to the drive module 5 and the base 2 on their respective sides, cannot move in the Z axis direction (up and down), and cannot rotate in other directions. Figure 2 In the side view in the YZ axis direction, the driving module 5 drives the beam 1 to move in the positive or reverse direction along the Y axis to complete the working stroke according to the beat requirements.

[0050] In the above-mentioned embodiment of the present invention, the slide rail 4 has a small angle of deflection error relative to the adjustment block 3 when moving along the Y axis. By designing and manufacturing the control slide rail 4 to achieve a certain assembly gap, and the adaptive function of the slide rail 4 at the movable end of the beam 1, the relative synchronization requirements of the two ends of the beam 1 relative to the running direction (Y axis) of the base 2 and the drive module 5 are effectively reduced. In other words, the slide rail 4 at the movable end of the beam 1 is allowed to have a small angle of deflection error relative to the adjustment block 3 at the fixed end of the beam 1 when moving along the Y axis, so that key components will not be damaged, and the normal working needs of the equipment are met.

[0051] It can be seen that the embodiment 1 of the present invention provides an adaptive large-span gantry truss device, which realizes the position adjustment of the beam 1 relative to the base 2 by connecting the slide rail 4 and the adjustment block 3 with the beam 1 and the driving module 5. The position adjustment member includes an adjustment block 3 at the relatively fixed end at both ends of the beam 1 (the beam 1 at this end is not absolutely fixed, and it can move along the Y-axis direction) and a slide rail 4 at the relatively movable end (the beam 1 at this end can move along the Y-axis direction and along the X-axis direction); the driving module realizes the movement of the beam 1 along the Y-axis direction. In the length direction of the beam 1, the stress deformation and temperature change of the beam 1 cause the expansion and contraction of the length dimension change, and the adaptive movement of the slide rail 4 of the beam 1 automatically eliminates the error caused by the length change, thereby ensuring that the machine equipment can operate stably for a long time. In addition, through the adaptive function of the slide rail 4 of the beam 1, the relative accuracy requirements of the installation position length direction (X-axis) of the base 2 and the driving module 5 at both ends of the beam 1 are further effectively reduced.

[0052] Example 2

[0053] Figure 3-5 FIG. 2 shows a front view in the XZ axis direction and side views of the left and right ends of a gantry truss provided in another embodiment of the present invention. Figure 3-5As shown, a gantry truss comprises: a crossbeam 1, two columns 6, equal height blocks 7, a dovetail slider 8 and a dovetail fixing seat 9, and two driving modules 5. The two columns 6 are respectively located at both ends of the crossbeam 1, and the bottoms of the columns 6 are fixed on the ground. The two driving modules 5 are respectively fixed on the tops of the corresponding columns 6, and the driving modules 5 drive the crossbeam 1 to move along the Y-axis direction. The dovetail slider 8 is fixed to the dovetail fixing seat 9, and together with one end of the crossbeam 1 (such as Figure 1 The lower surface of the equal height block 7 is fixedly connected to the other end of the beam 1 (as shown in the right side end) and mounted on the corresponding driving module 5, and the dovetail slider 8 makes the beam 1 move along the X-axis direction and the Y-axis direction. Figure 1 The lower surface of the left end as shown is fixedly connected and mounted on the corresponding driving module 5, and the equal height block 7 enables the beam 1 to move along the Y-axis direction.

[0054] like Figure 3-5 As shown, the driving modules 5 on both sides respectively drive the connected equal height blocks 7 and dovetail fixing seats 9 to drive the dovetail sliders 8 and the crossbeam 1 to realize linear motion in the Y-axis direction on the columns at both ends.

[0055] like Figure 3-5 As shown, the surface of the dovetail slider 8 is connected to the crossbeam 1, and the dovetail below the dovetail slider 8 cooperates with the dovetail shape of the dovetail fixing seat 9. The dovetail slider 8 can slide along the dovetail shape relative to the dovetail fixing seat 9. The dovetail slider 8 can make the crossbeam 1 move in the X-axis direction (left and right).

[0056] like Figure 4 As shown, one end of the beam 1 is fixedly connected to the driving module 5 through a height-equalizing block 7. Figure 5 As shown, the other end of the crossbeam 1 is softly connected to the driving module 5 through a dovetail slider 8 and a dovetail fixing seat 9 as a dovetail guide rail matching method.

[0057] In the above embodiment of the present invention, the two columns 6 are completely fixed to the ground at both ends of the beam 1, and are completely fixed to the driving modules 5 at both ends. The present invention greatly reduces the installation requirements and debugging requirements for the installation surface, can reduce the installation accuracy of the column 6 position, and reduce the accuracy requirements for debugging instruments.

[0058] In the length direction (X-axis direction) of the beam 1, the stress deformation of the beam 1 and the expansion and contraction of the length dimension caused by temperature changes can be adaptively moved along the X-axis direction through the dovetail cooperation of the dovetail slider 8 and the dovetail fixing seat 9, thereby automatically eliminating its errors.

[0059] It can be seen that the connection method of the cross beam or truss in the structure of the dovetail slider 8 at one end and the equal height block 7 at the other end in the embodiment 2 of the present invention can automatically adapt to the length size change caused by temperature change, and will not cause stress deformation, which effectively guarantees the stability of the structural function and the long-term stable operation of the equipment. In addition, the embodiment 2 of the present invention also guarantees the overall operation accuracy of the cross beam, and also ensures that the overall rigidity of the equipment and the stability of the equipment operation can be effectively met.

[0060] In addition, alternatively, in other embodiments, the slide rail 4 or the dovetail slider 8 can be replaced by other similar structures, for example, a linear bearing plus a guide rod, etc.

[0061] In addition, in the above embodiments 1-2 of the present invention, a linear motor is preferably used as a driving method, and is connected to the crossbeam 1 through a guide rail or a slide rail as a guide. Of course, the driving module in the present invention can also be other driving modules including a screw module, a belt module, a gear rack module, etc.

[0062] Moreover, the present invention is used in gantry truss equipment of photovoltaic automation production lines, but is not limited to use in photovoltaic automation production equipment, nor is it limited to use in the new energy industry or pan-semiconductor equipment, and is not limited to use in other automation equipment.

[0063] In summary, the gantry truss provided by the present invention can automatically adapt to the position change caused by temperature change, eliminate the stress that may be generated, avoid the jamming phenomenon, and effectively improve the service life. The gantry truss provided by the present invention fully guarantees the structural stability after installation, can automatically adapt to the influence of different position deviations of the base or column during installation, has smaller overall deformation, and higher durability. The present invention has a simple structure, is stable and reliable, and is easy to debug and has a short debugging cycle.

[0064] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to the process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above is only an embodiment of the present application, and the embodiment enables those skilled in the art to understand and implement the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and features disclosed herein.

Claims

1. A gantry truss, characterized in that: include: beam; Two bases, the two bases respectively support two ends of the beam, and the bottoms of the bases are fixed on the ground; Two driving modules, the two driving modules are respectively fixedly mounted on the top of the corresponding base, and the driving modules drive the crossbeam to move along the Y-axis direction; A first component, the first component is fixedly connected to the lower surface of one end of the beam and is installed on the corresponding driving module, and the first component enables the beam to move along the X-axis direction and the Y-axis direction; The second component is fixedly connected to the lower surface of the other end of the beam and installed on the corresponding driving module, and the second component enables the beam to move along the Y-axis direction.

2. The gantry truss according to claim 1, characterized in that: The first component adaptively moves along the X-axis direction as the length of the beam expands or contracts.

3. The gantry truss according to claim 1, characterized in that: The first component is a slide rail, a dovetail slider or a linear bearing plus a guide rod, and the second component is an adjustment block or an equal height block.

4. The gantry truss according to claim 3, characterized in that: When the first component is a dovetail slider, the dovetail slider is installed on a dovetail fixing seat, the dovetail slider cooperates with the dovetail shape of the dovetail fixing seat, and the dovetail slider slides along the dovetail shape relative to the dovetail fixing seat.

5. The gantry truss according to claim 1, characterized in that: The driving module adopts a linear motor as a driving method.

6. The gantry truss according to claim 1, characterized in that: The driving module comprises a screw module, a belt module and a gear rack module.

7. The gantry truss according to claim 1, characterized in that: The base is in the form of a column.

8. The gantry truss according to claim 1, characterized in that: The first component has a small angular deflection error relative to the second component when moving along the Y-axis.

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