Cross beam positioning tool
By designing a beam positioning fixture with multi-directional positioning and clamping, the problem of insufficient versatility of existing fixtures was solved, enabling stable assembly of beams of different sizes and improving assembly accuracy and stability.
Patent Information
- Application Number
- CN202511939757.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-02-17
AI Technical Summary
The existing beam positioning fixtures are not very versatile and cannot meet the assembly needs of beams of different sizes and structures.
A beam positioning fixture was designed, including a positioning frame, a first positioning component, a second positioning component, and a clamping component. It achieves multi-directional positioning and clamping of the beam through multiple adjustment units and is suitable for beams of different heights, lengths, and widths.
The versatility and stability of the beam positioning fixture have been improved, enabling it to adapt to the assembly of beams of different sizes and structures, and enhancing the stability and accuracy during the assembly process.
Smart Images
Figure CN121535684A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of beam assembly technology, specifically relating to a beam positioning fixture. Background Technology
[0002] The main crossbeam of a railway freight car is one of the important components of the railway freight car underframe. The main crossbeam is located between two opposing sleeper beams. The main function of the main crossbeam is to connect the middle beam and the side beams of the underframe, enhance the lateral stiffness and strength of the underframe, improve the stability of the freight car during operation, and also help to evenly distribute the weight of the cargo.
[0003] The main crossbeam has a highly regular structure, and is basically an I-beam composed of three main parts: an upper cover plate, a lower cover plate, and a web plate, although the dimensions may vary. Therefore, in the production of main crossbeams, there is a common phenomenon of using one tooling for one vehicle model, resulting in poor compatibility and versatility of the tooling. Summary of the Invention
[0004] To address the technical problem of the lack of versatility in current beam positioning fixtures, this application provides a beam positioning fixture.
[0005] This application provides a beam positioning fixture, the beam comprising a lower cover plate, a web plate, and an upper cover plate arranged sequentially from bottom to top, the web plate being connected to the upper cover plate and the lower cover plate on both sides along the height direction, the upper cover plate being inclined, characterized in that the positioning fixture includes: The positioning frame is equipped with an assembly platform for supporting the crossbeam; A first positioning component is installed on the positioning frame. The first positioning component is used to position the lower cover plate in a first direction and a second direction. The first direction, the second direction and the height direction are perpendicular to each other. The second positioning component is installed on the positioning frame. The second positioning component is used to clamp and position the web in a first direction and to position the web in a second direction. The second positioning component is also used to position the upper cover plate in the first and second directions and to position the upper cover plate in the height direction. The clamping assembly includes a pressure head for applying a clamping force to the upper surface of the lower cover plate, the pressure head being movable in the height direction, and the clamping force having components in a second direction and in the height direction.
[0006] In some embodiments, the first positioning component is provided with a first positioning surface and a second positioning surface, the first positioning surface being used to abut against the side of the lower cover plate along a first direction, and the second positioning surface being used to abut against the side of the lower cover plate along a second direction.
[0007] In some embodiments, the first positioning component includes a first positioning plate and a positioning block, wherein the first positioning plate and the positioning block are located on both sides of the lower cover plate along a first direction; The positioning block is provided with the first positioning surface, and the first positioning plate is provided with the second positioning surface.
[0008] In some embodiments, the first positioning component further includes a first adjustment unit, wherein the first positioning plate is slidably connected to the positioning frame along a second direction via the first adjustment unit.
[0009] In some embodiments, the second positioning component includes a second positioning plate, a third positioning plate, a first clamping member, and a second clamping member; The second positioning plate is connected to the third positioning plate. The second positioning plate is used to position the web plate in the second direction, and the third positioning plate is used to position the upper cover plate in the second direction. The first clamping member and the second clamping member are respectively used to abut against the two surfaces of the web plate along the first direction. The second positioning plate, the third positioning plate, and the first positioning component are located on the same side of the lower cover plate along the second direction.
[0010] In some embodiments, the first clamping member is mounted on the positioning frame and has a clamping head that moves along the first direction; the second clamping member is a clamping plate and has a third positioning surface that abuts against the surface of the web.
[0011] In some embodiments, the clamping plate is provided with a fourth positioning surface and a fifth positioning surface, the fourth positioning surface being used to press against the lower surface of the upper cover plate, and the fifth positioning surface being used to press against the side of the upper cover plate along a first direction.
[0012] In some embodiments, multiple first clamping members are provided, and the multiple first clamping members are arranged sequentially along the second direction. The second positioning component further includes a second adjustment unit with the same number of first clamping members. The first clamping members are slidably connected to the positioning frame along the second direction through the corresponding second adjustment unit. The clamping plates are provided in multiple ways, and the multiple clamping plates are arranged sequentially along the second direction; the second positioning component includes a third adjustment unit with the same number of clamping plates, and the clamping plates are slidably connected to the positioning frame along the second direction through the corresponding third adjustment unit.
[0013] In some embodiments, both the second adjustment unit and the third adjustment unit include a slider and a sliding member. The slider is slidably connected to the positioning frame along the second direction, and the sliding member is slidably connected to the slider along the first direction. The sliding member is connected to the first clamping member or the clamping plate.
[0014] In some embodiments, the clamping assembly includes a bracket and a clamping member, the bracket being mounted on the positioning frame, the clamping member being slidably connected to the bracket along the height direction, and the clamping member being provided with the pressure head; The clamping assembly is provided in multiple parts, and the multiple clamping elements are arranged sequentially along the second direction.
[0015] According to the crossbeam positioning fixture provided in the embodiments of this application, the first positioning component can clamp and position the lower cover plate in a first direction, the second positioning component can clamp and position the web plate in a first direction and in a second direction, and the pressure head of the clamping component can move along the height direction. Therefore, it can be applied to crossbeams of different height dimensions, thus improving the versatility of the positioning fixture.
[0016] Because the clamping force provided by the clamping head of the clamping assembly has components along the height direction and the second direction, the clamping assembly, in conjunction with the second positioning assembly, can achieve clamping and positioning of the web plate and the top cover plate along the second direction. It can also be used for the assembly of crossbeams of different lengths, with a compact structure and strong versatility. Attached Figure Description
[0017] Figure 1 A schematic diagram of the beam structure is shown.
[0018] Figure 2 A schematic diagram of the positioning fixture and the crossbeam of this application is shown.
[0019] Figure 3 It shows Figure 2 A magnified view of a portion of the image.
[0020] Figure 4 It shows Figure 2 A structural diagram from another perspective.
[0021] Figure 5 A schematic diagram of the structure showing the cooperation between the first positioning plate and the first adjustment unit is shown.
[0022] Figure 6 A schematic diagram of the push-pull clamp is shown.
[0023] Figure 7 It shows Figure 6 Another structural diagram from another perspective.
[0024] Figure 8 It shows Figure 6 Another structural diagram from a different perspective.
[0025] Figure 9 It shows Figure 4 A schematic diagram of the structure of one of the clamping plates.
[0026] Figure 10 It shows Figure 9 Another structural diagram from another perspective.
[0027] Explanation of reference numerals in the attached figures: 110-First positioning plate, 112-Second positioning surface, 120-First adjusting unit, 130-Positioning block; 210-First clamping member, 220-Second clamping member, 220a-Clamping plate, 221-Third positioning surface, 222-Fourth positioning surface, 223-Fifth positioning surface, 230-Second positioning plate, 240-Second adjusting unit, 250-Third adjusting unit, 260-Third positioning plate, 261-Abutting positioning surface; 300- Clamping assembly, 310-bracket, 320-clamping component, 330-fourth adjustment unit, 340-track, 350-fixing block; 400-positioning frame, 410-assembly platform, 420-side rail; 700-crossbeam, 701-lower cover plate, 702-web plate, 703-upper cover plate; 810-push-pull clamp, 811-connecting frame, 812-pressure rod, 813-connecting rod, 814-drive rod; 911-slider, 912-slider component. Detailed Implementation
[0028] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0029] Please see Figure 1 The crossbeam 700 includes a lower cover plate 701, a web plate 702, and an upper cover plate 703 arranged sequentially from bottom to top. The web plate 702 is connected to the upper cover plate 703 and the lower cover plate 701 on both sides along the height direction, and the upper cover plate 703 is inclined.
[0030] The width direction of the crossbeam 700, which is also the width direction of the lower cover plate 701, is defined as the first direction, i.e., the X-axis direction. The axial extension direction of the crossbeam 700, which is also the length direction of the lower cover plate 701 and the web plate 702, is defined as the second direction, i.e., the Y-axis direction. The height direction of the crossbeam 700 is defined as the Z-axis direction. The first direction, the second direction, and the height direction are all perpendicular to each other.
[0031] According to the first aspect of this application, a beam positioning fixture is provided, which can position beams of different sizes and has strong versatility.
[0032] This application is described below with reference to the accompanying drawings and specific embodiments: Please see Figure 2 as well as Figure 3 The beam positioning fixture provided in this application includes a positioning frame 400, a first positioning component, a second positioning component, a third positioning component, and a clamping component 300. The positioning frame 400 has an assembly platform 410 for supporting the beam 700. The first positioning component is mounted on the positioning frame 400 and is used to position the lower cover plate 701 in a first direction and a second direction. The second positioning component is mounted on the positioning frame 400 and is used to clamp and position the web plate 702 in the first direction and in the second direction. The clamping component 300 has a pressure head for applying a clamping force to the surface of the lower cover plate 701 away from the upper cover plate 703. The pressure head is movable along the height direction, and the clamping force has components along the second direction and the height direction.
[0033] The positioning frame 400 provides an installation base for the first positioning component, the second positioning component, the third positioning component, and the clamping component 300, and also provides an assembly platform 410 that supports the crossbeam 700. The assembly platform 410 can provide height positioning for the lower cover plate 701. The positioning frame 400 can be a frame structure or a base-type structure; this application does not impose any restrictions.
[0034] The first positioning component can position the lower cover plate 701 in a first direction and a second direction, and the second positioning component can clamp and position the web plate 702 in a first direction and a second direction. The pressure head of the clamping component 300 can move along the height direction, so it can be applied to beams 700 with different height dimensions, thus improving the versatility of the positioning fixture.
[0035] For the lower cover plate 701 of the crossbeam 700, its height direction support and positioning are achieved by the assembly platform 410, and the positioning in the first and second directions is achieved by the first positioning component. The first and second directions only have positioning without clamping. Therefore, the positioning fixture can position the lower cover plate 701 with different dimensions in the second direction and different dimensions in the first direction, thus improving versatility. The lower cover plate 701 is located at the bottom, with a web plate 702 and an upper cover plate 703 above it. Since the clamping force provided by the clamping component 300 has a component in the second direction, the clamping component 300 and the first positioning component can cooperate to achieve clamping and positioning of the lower cover plate 701 in the second direction, thereby improving the stability and accuracy of the crossbeam 700 assembly process.
[0036] For the web 702 of the crossbeam 700, its height-direction support and positioning are achieved by the lower cover plate 701 after positioning, and the clamping and positioning in the first direction are achieved by the second positioning component. Similar to the lower cover plate 701, the web 702 only has positioning without clamping in the second direction. The pressure head can move along the height square. Therefore, the positioning fixture can achieve positioning of the web 702 with different dimensions in the second direction and height direction, improving versatility. Above the web 702 is the upper cover plate 703 and the clamping component 300. Since the clamping force provided by the clamping component 300 has a component in the second direction, the clamping component 300 can cooperate with the second positioning component to achieve clamping and positioning of the web 702 in the second direction, improving the stability and accuracy of the crossbeam 700 assembly process.
[0037] For the upper cover plate 703 of the crossbeam 700, its height direction is clamped and positioned by the web plate 702, the second positioning component, and the clamping component 300. The first direction is achieved by the second positioning component, and the second direction is also achieved by the second positioning component. Since the upper cover plate 703 is clamped and positioned in the second direction by the second positioning component and the clamping component 300, and the pressure head of the clamping component 300 can move along the height direction, it can be applied to upper cover plates 703 with different dimensions in the second direction, improving the versatility of the positioning fixture.
[0038] The first positioning component has a first positioning surface and a second positioning surface 112. The first positioning surface is used to abut against the side of the lower cover plate 701 along a first direction, and the second positioning surface 112 is used to abut against the side of the lower cover plate 701 along a second direction. By abutting the side of the lower cover plate 701 in the first direction and the side of the lower cover plate 701 in the second direction with the first positioning surface and the second positioning surface 112 respectively, the positioning of the lower cover plate 701 in the X and Y directions is achieved.
[0039] Please see Figure 2 , Figure 4 as well as Figure 5 The first positioning component may include a first positioning plate 110 and a positioning block 130. The positioning block 130 is provided with a first positioning surface 131, and the first positioning plate 110 is provided with a second positioning surface 112. The positioning block 130 abuts against the side of the lower cover plate 701 along the first direction.
[0040] In other embodiments, the first positioning component may also be provided with two first positioning plates 110, each of which is provided with a first positioning surface and a second positioning surface 112, so that the positioning of the lower cover plate 701 in the X and Y directions can still be achieved.
[0041] The dimension of the first positioning surface along the Y direction can be slightly larger, which can increase the contact area between the first positioning surface and the side of the lower cover plate 701 in the first direction, thereby improving positioning stability. Similarly, the dimension of the second positioning surface 112 along the X direction can be slightly larger, which can increase the contact area between the second positioning surface 112 and the side of the lower cover plate 701 in the second direction, thereby further improving positioning stability.
[0042] In some embodiments, please refer to Figure 2 The first positioning component may further include a first adjustment unit 120, and a first positioning plate 110 is slidably connected to the positioning frame 400 along a second direction via the first adjustment unit 120. The first positioning plate 110 and the positioning frame 400 are slidably connected along the Y direction, which allows adjustment of the position of the second positioning surface 112 along the Y direction. Since the web 702 of the crossbeam 700 extends out of the lower cover plate 701 along the Y direction, and the size of the web 702 extending out of the lower cover plate 701 varies for different vehicle models, the adjustable position of the second positioning surface 112 in the Y direction can be used to position the lower cover plate 701 in the Y direction for different web 702 extension sizes, improving versatility and compatibility.
[0043] In some embodiments, the first positioning plate 110 can also be slidably connected to the positioning frame 400 along a first direction via the first adjusting unit 120. The first positioning plate 110 and the positioning frame 400 are slidably connected along the X direction, which can adjust the position of the second positioning surface 112 along the X direction, increase or decrease the contact area between the second positioning surface 112 and the side of the lower cover plate 701 in the Y direction, adjust the contact position between the second positioning surface 112 and the lower cover plate 701, and improve the stability of the positioning of the lower cover plate 701 in the Y direction.
[0044] Please see Figure 5The first adjustment unit 120 may include a slider 911 and a sliding member 912. The slider 911 is slidably connected to the positioning frame 400 along the second direction, and the sliding member 912 is slidably connected to the slider 911 along the first direction. The sliding member 912 is connected to the first positioning plate 110. The slider 911 is slidably connected to the positioning frame 400 along the Y direction, so the slider 911 can reciprocate along the axial direction of the crossbeam 700. The sliding member 912 is connected to the slider 911, so the slider 911 can drive the sliding member 912 to reciprocate along the axial direction of the crossbeam 700. The first positioning plate 110 is also connected to the slider 911, so the reciprocating movement of the first positioning plate 110 along the axial direction of the crossbeam 700 is realized, thus making it suitable for positioning lower cover plates 701 of different lengths. The slider 912 and the slide block 911 are slidably connected along the width direction of the lower cover plate 701. Therefore, the slider 912 can drive the first positioning plate 110 to reciprocate along the width direction of the lower cover plate 701, thus making it applicable to the positioning of lower cover plates 701 of different widths, with high versatility and strong compatibility. In some other embodiments, the first adjustment unit 120 may also use a worm gear mechanism or other linear motion mechanism to realize the movement of the first positioning plate 110 along the X direction, which is not limited in this application.
[0045] Please see Figure 2 The positioning frame 400 may be provided with a side rail 420 parallel to the axial direction of the crossbeam 700. The slider 911 of the first adjusting unit 120 slides in cooperation with the side rail 420, improving the stability of the slider 911 reciprocating along the axial direction of the crossbeam 700. In other embodiments, the positioning frame 400 may also be provided with a slide groove extending along the axial direction of the crossbeam 700. The slider 911 of the first adjusting unit 120 is provided with a sliding protrusion that slides in cooperation with the slide groove, which also improves the stability of the slider 911 reciprocating along the axial direction of the crossbeam 700.
[0046] In some embodiments, multiple positioning blocks may be provided, and the multiple positioning blocks are arranged sequentially along the second direction, namely the Y direction, so that multi-point positioning improves the positioning accuracy of the lower cover plate 701.
[0047] Please see Figure 2 , Figure 3 as well as Figure 4 The second positioning assembly may include a second positioning plate 230, a third positioning plate 260, a first clamping member 210, and a second clamping member 220. The second positioning plate 230 is connected to the third positioning plate 260. The second positioning plate 230 is used to position the web plate 702 in the second direction, and the third positioning plate 260 is used to position the upper cover plate 701 in the second direction. The first clamping member 210 and the second clamping member 220 are respectively used to abut against the two plate surfaces of the web plate 702 along the first direction. The second positioning plate 230, the third positioning plate 260, and the first positioning assembly are located on the same side of the lower cover plate 701 along the second direction.
[0048] The second positioning plate 230 can position the web plate 702 in the Y direction. The first clamping member 210 and the second clamping member 220 cooperate to clamp and position the web plate 702 in the X direction. The second positioning plate 230, the third positioning plate 260 and the first positioning component are located on the same side of the second direction. In this way, the lower cover plate 701 can be positioned on one side in the Y direction. The other side of the lower cover plate 701 in the Y direction can be freely set. This assembly fixture can be used for the assembly of crossbeams 700 of different lengths, with high versatility and strong compatibility.
[0049] In some embodiments, the web of the beam has a large end and a small end, and the second positioning plate 230, the third positioning plate 260, and the first positioning plate 110 of the first positioning assembly are all located on the large end side of the web.
[0050] In some embodiments, the second positioning plate 230 can be vertically arranged, and its surface serves as an abutting surface that abuts against the side of the web 702 along the Y direction. The second positioning plate 230 may be connected with reinforcing ribs to improve its strength and ensure positioning stability. In other embodiments, structural steel such as I-beams or channel steel can be used as the structure for positioning the web 702 in the Y direction, eliminating the need for welding reinforcing ribs and providing higher strength.
[0051] In some embodiments, the second positioning plate 230 can be welded to the positioning frame 400, resulting in high connection strength. Furthermore, the second positioning plate 230 only positions the web plate 702 on one side in the Y direction, while the other side of the web plate 702 in the Y direction is freely disposed. Therefore, even if the second positioning plate 230 is welded, it can still be used for positioning web plates 702 of different lengths without the need for disassembly.
[0052] In some embodiments, the third positioning plate 260 is provided with a mating positioning surface 261 that abuts against one side of the upper cover plate 703 along the second direction, thereby positioning the upper cover plate 703 in the second direction. The second positioning plate 230 and the third positioning plate 260 are connected, and together they constitute a positioning bracket. Therefore, the positioning bracket has rich functions and a simple structure. In other embodiments, the second positioning plate 230 may be provided with a stepped surface, with two surfaces of the stepped surface abutting against one side of the upper cover plate 703 and the web plate 702 in the Y direction, respectively, to accommodate the structure in which the upper cover plate 703 and the web plate 702 are not flush, thereby improving the positioning accuracy of the upper cover plate 703 and the web plate 702 and eliminating the need for the third positioning plate 260.
[0053] In some embodiments, the first clamping member 210 can be mounted on the positioning frame 400 and has a chuck that moves along a first direction. The second clamping member 220 is a clamping plate 220a, which has a third positioning surface 221 that abuts against the surface of the web 702. The clamping plate 220a is fixedly disposed, and the chuck of the first clamping member 210 can move along the X direction, thereby achieving adjustment and fixation of the position of the web 702. In other embodiments, both the first clamping member 210 and the second clamping member 220 may also have chucks that move along the first direction, still achieving positioning and clamping of the web 702 along the X direction.
[0054] The first clamping element 210 can be a screw, with its end forming a chuck. The screw is screwed to the positioning frame 400 and extends in the X direction. As the screw rotates, the chuck at the end of the screw moves in the X direction. Alternatively, the first clamping element 210 can be a push-pull type clamp 810; please refer to [reference needed]. Figure 6 , Figure 7 as well as Figure 8 The push-pull clamp 810 includes a connecting frame 811, a pressure rod 812, a connecting rod 813, and a drive rod 814. The connecting frame 811 has a guide hole. The pressure rod 812 extends along a first direction, with its middle portion passing through the guide hole. One end of the pressure rod 812 forms a chuck. One end of the connecting rod 813 is hinged to the other end of the pressure rod 812, and the other end of the connecting rod 813 is hinged to the middle portion of the drive rod 814. The lower end of the drive rod 814 is hinged to the connecting frame 811. When the drive rod 814 rotates around the connecting frame 811, it drives the connecting rod 813 to move along the X direction, thereby driving the pressure rod 812 to move along the first direction. The push-pull clamp 810 is part of the prior art; further details can be found in existing disclosures, which will not be elaborated upon here.
[0055] Multiple first clamping members 210 are provided, and the multiple first clamping members 210 are arranged sequentially along the second direction. The second positioning assembly may further include a number of second adjusting units 240 equal to the number of first clamping members 210. The second adjusting units 240 are arranged one-to-one with the first clamping members 210, and the first clamping members 210 are slidably connected to the positioning frame 400 along the second direction through the corresponding second adjusting units 240. The first clamping members 210 can move along the Y direction, thereby being suitable for positioning web plates 702 of different lengths.
[0056] In some embodiments, please refer to Figure 2 The first clamping member 210 can also be slidably connected to the positioning frame 400 along the first direction through the corresponding second adjustment unit 240. That is to say, the position of the first clamping member 210 along the X direction is adjustable. In this way, before positioning the web plate 702, the first clamping member 210 can be moved to a position away from the assembly platform 410, so that there is enough space to place the web plate 702. After the web plate 702 is placed in a suitable position, the first clamping member 210 can be moved toward the web plate 702.
[0057] The second adjustment unit 240 can use the same structure as the first adjustment unit 120. The second adjustment unit 240 includes a slider 911 and a sliding member 912. The slider 911 is slidably connected to the positioning frame 400 along the second direction, and the sliding member 912 is slidably connected to the slider 911 along the first direction. The sliding member 912 is connected to the first clamping member 210, thereby realizing that the position of the first clamping member 210 is adjustable along the X and Y directions.
[0058] In some embodiments, clamping plates 220a can be installed on the positioning frame 400. The clamping plates 220a can abut their sides against the surface of the web 702 along the X direction. Multiple clamping plates 220a can be provided, and multiple clamping plates 220a are arranged sequentially along the axial direction of the beam 700 to perform multi-point X-direction positioning of the web 702, thereby improving the positioning accuracy of the web 702. In other embodiments, clamping plates 220a can be vertically arranged, with their own surface serving as a third positioning surface 221 abutting against the surface of the web 702. The surface area is relatively large, which can also achieve accurate positioning of the web 702 along the X direction.
[0059] In some embodiments, please refer to Figure 9 as well as Figure 10 The clamping plate 220a has a fourth positioning surface 222 and a fifth positioning surface 223. The fourth positioning surface 222 is used to press against the lower surface of the upper cover plate 703, and the fifth positioning surface 223 is used to press against the side of the upper cover plate 703 along the first direction. The clamping plate 220a has a third positioning surface 221, a fourth positioning surface 222, and a fifth positioning surface 223, which are respectively used to press against the surface of the web plate 702, the lower surface of the upper cover plate 703, and the side of the upper cover plate 703 along the X direction. One structure achieves three positioning functions, which is simple in structure and rich in function. The clamping plate 220a has a notch, and the fourth positioning surface 222 and the fifth positioning surface 223 form the inner wall of the notch, which is simple in structure.
[0060] In some embodiments, multiple clamping plates 220a may be provided, such as three, four or six, and the multiple clamping plates 220a are arranged sequentially along the second direction, so that the web plate 702 and the upper cover plate 703 can be positioned at multiple points, thereby improving the positioning accuracy and stability of the web plate 702 and the upper cover plate 703.
[0061] Please see Figure 4The second positioning component may also include the same number of third adjustment units 250 as the clamping plates 220a. Each third adjustment unit 250 corresponds to one clamping plate 220a, and the clamping plate 220a is slidably connected to the positioning frame 400 along the second direction via the corresponding third adjustment unit 250. In other words, the Y-direction position of the clamping plate 220a is adjustable. Since the clamping plate 220a has a fourth positioning surface 222 that abuts against the lower surface of the upper cover plate 703, and the upper cover plate 703 is inclined, the adjustable Y-direction position of the clamping plate 220a can be applied to the crossbeam 700 of the upper cover plate 703 with different inclination angles, further improving the applicability and compatibility of the positioning fixture. In other embodiments, multiple clamping plates 220a may be provided, with different heights of the fourth positioning surface 222. Any clamping plate 220a can be detachably connected to the positioning frame 400, thus also enabling positioning of the upper cover plate 703 with different inclination angles.
[0062] In some embodiments, the clamping plate 220a can also be slidably connected to the positioning frame 400 along the first direction via a corresponding third adjustment unit 250, thereby making the X-direction position of the clamping plate 220a adjustable. Since the clamping plate 220a is provided with a third positioning surface 221 that abuts against the surface of the web plate 702 and a fifth positioning surface 223 that abuts against the side of the upper cover plate 703 along the X direction, the X-direction position of the clamping plate 220a is adjustable, which can be used to position upper cover plates 703 with different widths.
[0063] Please see Figure 4 as well as Figure 5 The third adjustment unit 250 can be selected with the same structure as the first adjustment unit 120 and the second adjustment unit 240. That is, the third adjustment unit 250 also includes a slider 911 and a sliding member 912. The slider 911 is slidably connected to the positioning frame 400 along the second direction, and the sliding member 912 is slidably connected to the slider 911 along the first direction. The sliding member 912 is connected to the clamping plate 220a.
[0064] Please see Figure 2 as well as Figure 4 The clamping assembly 300 may include a bracket 310 and a clamping member 320. The bracket 310 is mounted on the positioning frame 400, and the clamping member 320 is slidably connected to the bracket 310 along the height direction. The clamping member 320 is provided with a pressure head. The clamping member 320 and the bracket 310 are slidably connected along the height direction, realizing the reciprocating movement of the pressure head along the height direction. In some embodiments, the clamping member 320 may be a telescopic cylinder, such as a pneumatic cylinder or an electric cylinder. The fixed end of the telescopic cylinder is connected to the bracket 310, and the telescopic end of the telescopic cylinder reciprocates along the height direction. The telescopic end constitutes the pressure head, which can still realize the reciprocating movement of the pressure head along the height direction.
[0065] When the clamping member 320 is slidably connected to the bracket 310, a track can be provided on the bracket 310. The clamping assembly 300 also includes a fixing block 350, which is slidably engaged with the track 340. The clamping member 320 is installed on the fixing block 350, thereby improving the stability of the clamping member 320 during the sliding process along the bracket 310.
[0066] The clamping member 320 can be a structure similar to the first clamping member 210, such as a screw. The screw is screwed to the bracket 310 and extends along the X direction. As the screw rotates, the pressure head at the end of the screw moves along the X direction. The clamping member 320 can also be a push-pull clamp 810. The connecting frame 811 of the push-pull clamp 810 is connected to the fixing block 350. The end of the pressure rod 812 away from the connecting rod 812 constitutes the pressure head. For more details, please refer to the description of the first clamping member 210. This application will not repeat it here.
[0067] The clamping assembly 300 may also include a fourth adjustment unit 330. The bracket 310 can be slidably connected to the positioning frame 400 in the first direction through the fourth adjustment unit 330. This allows the clamping member 320 to be adjusted in the X direction. This allows the X-direction position of the clamping member 320 to be adjusted after the position of the upper cover plate 703 is determined, improving the convenience of placing the upper cover plate 703 above the web plate 702.
[0068] In some embodiments, the bracket 310 can also be slidably connected to the positioning frame 400 along the second direction via the fourth adjustment unit 330, which enables the position of the clamping member 320 to be adjustable along the Y direction, avoiding interference during the placement of the upper cover plate 703 and improving the ease of installation.
[0069] The fourth adjustment unit 330 can adopt a structure similar to that of the first adjustment unit 120, the second adjustment unit 240 and the third adjustment unit 250. The fourth adjustment unit 330 can also include a slider 911 and a sliding member 912. The slider 911 is slidably connected to the positioning frame 400 along the second direction, and the sliding member 912 is slidably connected to the slider 911 along the first direction. The sliding member 912 is connected to the first clamping member 210 or the clamping plate 220a.
[0070] In some embodiments, multiple clamping components 300 may be provided, and multiple clamping elements 320 are arranged sequentially along the second direction to clamp the upper cover plate 703 at multiple points, thereby improving the positioning and accuracy of the clamping and positioning.
[0071] The positioning process of the positioning fixture provided in this application is described in detail below: (1) Positioning of the lower cover plate 701: Place the lower cover plate 701 on the assembly platform 410, press one side of the lower cover plate 701 in the width direction against the first positioning surface 131 of the positioning block 130, adjust the position of the first positioning plate 110 through the first adjustment unit 120, so that the second positioning surface 112 abuts against the side of the lower cover plate 701 in the Y direction, and complete the positioning of the lower cover plate 701. (2) Positioning of web plate 702: The position of clamping plate 220a is adjusted by the third adjustment unit 250, and web plate 702 is placed on the lower cover plate 701. The X-direction plate surface of web plate 702 is pressed against the third positioning surface 221 of clamping plate 220a, and the Y-direction side of web plate 702 is pressed against the second positioning plate 230, thereby achieving the positioning of web plate 702 in the X, Y and Z directions. The position of first clamping member 210 is adjusted by the second adjustment unit 240, and then the first clamping member 210 is pushed and pulled so that its clamp head is pressed against the other plate surface of web plate 702 in the X direction, thereby completing the positioning and clamping of web plate 702 in the X direction, Y direction and Z direction.
[0072] (3) Positioning of the upper cover plate 703: Place the upper cover plate 703 above the web plate 702, and rely on the web plate 702 and the fourth positioning surface 222 of the clamping plate 220a for support. Adjust the Y-direction position of the upper cover plate 703 so that the upper cover plate 703 abuts against the abutting positioning surface 261 of the third positioning plate 260 to achieve Y-direction positioning. Adjust the upper cover plate 703 along the X-direction so that the upper cover plate 703 abuts against the fifth positioning surface 223 of the clamping plate 220a to achieve X-direction positioning. Adjust the X-direction and Y-direction positions of the clamping member 320 through the fourth adjustment unit 330, and then push and pull the clamping member 320 so that the pressure head presses low on the upper cover plate 703 to achieve Z-direction and Y-direction clamping, and complete the positioning and clamping of the upper cover plate 703.
[0073] (4) Check the assembly dimensions of each part.
[0074] The positioning fixture provided in this application can be used to position crossbeams 700 of different lengths, widths and heights. The clamping component 300 cooperates with the second positioning plate 230 to clamp and position the upper cover plate 703 and the web plate 702 in the Y direction. The clamping component 300 can also clamp the crossbeam 700 in the Z direction. It has a simple structure and rich functions.
[0075] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0076] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0077] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0078] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0079] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A beam positioning fixture, the beam comprising a lower cover plate, a web plate, and an upper cover plate arranged sequentially from bottom to top, the web plate being connected to the upper cover plate and the lower cover plate on both sides along its height direction, the upper cover plate being inclined, characterized in that, The positioning fixture includes: The positioning frame is equipped with an assembly platform for supporting the crossbeam; A first positioning component is installed on the positioning frame. The first positioning component is used to position the lower cover plate in a first direction and a second direction. The first direction, the second direction and the height direction are perpendicular to each other. The second positioning component is installed on the positioning frame. The second positioning component is used to clamp and position the web in a first direction and to position the web in a second direction. The second positioning component is also used to position the upper cover plate in the first and second directions and to position the upper cover plate in the height direction. The clamping assembly includes a pressure head for applying a clamping force to the upper surface of the lower cover plate, the pressure head being movable in the height direction, and the clamping force having components in a second direction and in the height direction.
2. The beam positioning fixture according to claim 1, characterized in that, The first positioning component has a first positioning surface and a second positioning surface. The first positioning surface is used to abut against the side of the lower cover plate along a first direction, and the second positioning surface is used to abut against the side of the lower cover plate along a second direction.
3. The beam positioning fixture according to claim 2, characterized in that, The first positioning component includes a positioning block and a first positioning plate. The positioning block is provided with the first positioning surface, and the first positioning plate is provided with the second positioning surface.
4. The beam positioning fixture according to claim 3, characterized in that, The first positioning component further includes a first adjustment unit, and the first positioning plate is slidably connected to the positioning frame along a second direction via the first adjustment unit.
5. The beam positioning fixture according to any one of claims 1-4, characterized in that, The second positioning component includes a second positioning plate, a third positioning plate, a first clamping member, and a second clamping member; The second positioning plate is connected to the third positioning plate. The second positioning plate is used to position the web plate in the second direction, and the third positioning plate is used to position the upper cover plate in the second direction. The first clamping member and the second clamping member are respectively used to abut against the two surfaces of the web plate along the first direction. The second positioning plate, the third positioning plate, and the first positioning component are located on the same side of the lower cover plate along the second direction.
6. The beam positioning fixture according to claim 5, characterized in that, The first clamping member is mounted on the positioning frame and has a chuck that moves along the first direction; the second clamping member is a clamping plate and has a third positioning surface that abuts against the surface of the web.
7. The beam positioning fixture according to claim 6, characterized in that, The clamping plate is provided with a fourth positioning surface and a fifth positioning surface. The fourth positioning surface is used to press against the lower plate surface of the upper cover plate, and the fifth positioning surface is used to press against the side of the upper cover plate along the first direction.
8. The beam positioning fixture according to claim 6, characterized in that, The first clamping member is provided in multiple ways, and the multiple first clamping members are arranged sequentially along the second direction. The second positioning component also includes a second adjustment unit with the same number of first clamping members. The first clamping members are slidably connected to the positioning frame along the second direction through the corresponding second adjustment unit. The clamping plates are provided in multiple ways, and the multiple clamping plates are arranged sequentially along the second direction; the second positioning component includes a third adjustment unit with the same number of clamping plates, and the clamping plates are slidably connected to the positioning frame along the second direction through the corresponding third adjustment unit.
9. The beam positioning fixture according to claim 8, characterized in that, Both the second adjustment unit and the third adjustment unit include a slider and a sliding member. The slider is slidably connected to the positioning frame along the second direction, and the sliding member is slidably connected to the slider along the first direction. The sliding member is connected to the first clamping member or the clamping plate.
10. The beam positioning fixture according to any one of claims 1-4, characterized in that, The clamping assembly includes a bracket and a clamping member. The bracket is mounted on the positioning frame, and the clamping member is slidably connected to the bracket along the height direction. The clamping member is provided with the pressure head. The clamping assembly is provided in multiple parts, and the multiple clamping elements are arranged sequentially along the second direction.