CN120421699B - Numerical control clamp platform for laser welding - Google Patents
Numerical control clamp platform for laser weldingInfo
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- CN120421699B CN120421699B CN202510866712.XA CN202510866712A CN120421699B CN 120421699 B CN120421699 B CN 120421699B CN 202510866712 A CN202510866712 A CN 202510866712A CN 120421699 B CN120421699 B CN 120421699B
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Abstract
本发明提供一种激光焊接用数控夹具平台，涉及夹具平台技术领域，包括对叉车挡货架或护顶架的横梁和竖梁进行固定的定位机构，定位机构包括横向设置的支撑杆、四根可拆卸安装于支撑杆上的伸缩杆、以及可拆卸安装在支撑杆上并对位于四根伸缩杆上的横梁和竖梁进行夹持固定的定位组件，四根伸缩杆构成平行四边形结构，且伸缩杆与伸缩杆之间通过端部转动连接；横梁和竖梁分别放置于转动连接的两根伸缩杆上，在四根伸缩杆上构成叉车挡货架或护顶架结构，通过定位组件对放置于四根伸缩杆上的横梁和竖梁施加朝向伸缩杆方向上的夹持力。本发明简化了操作流程、提高了焊接精度和质量、增强了设备的通用性。
The present invention provides a CNC fixture platform for laser welding, which relates to the technical field of fixture platforms and includes a positioning mechanism for securing the horizontal and vertical beams of a forklift backstop or overhead guard. The positioning mechanism comprises a transversely arranged support rod, four telescopic rods detachably mounted on the support rods, and a positioning assembly detachably mounted on the support rods and clamping and securing the horizontal and vertical beams on the four telescopic rods. The four telescopic rods form a parallelogram structure, and the telescopic rods are pivotally connected to each other at their ends. The horizontal and vertical beams are respectively placed on two of the pivotally connected telescopic rods, forming a forklift backstop or overhead guard structure on the four telescopic rods. The positioning assembly applies a clamping force toward the telescopic rods to the horizontal and vertical beams placed on the four telescopic rods. The present invention simplifies the operating process, improves welding accuracy and quality, and enhances the versatility of the equipment.
Description
Technical Field
The invention relates to the technical field of clamp platforms, in particular to a numerical control clamp platform for laser welding.
Background
In the manufacturing industry, the laser welding technology is widely applied to the connection of various metal components by virtue of the remarkable advantages of high precision, high efficiency, good welding quality and the like, and particularly in the manufacturing field of structural components such as a forklift shelf, a cab upper overhead guard and the like. However, when the numerical control clamp platform used for the current laser welding meets the actual production requirement, a plurality of problems to be solved urgently exist, and the production efficiency and the product quality are severely restricted.
1. Complicated arrangement of clamping tools
On the existing laser welding processing table, the arrangement mode of the clamping tool is very complicated. It is often necessary to pre-program and install a plurality of clamping devices on the processing table depending on the specific shape and size of the forklift pallet and overhead guard to be welded. These clamping devices often require precise adjustment of position and angle to ensure that the various parts of the forklift or overhead guard are securely fastened. In the installation process, a worker needs to expend a lot of time and effort to measure, position and debug, which not only increases the production preparation time and reduces the production efficiency, but also makes it difficult to ensure that each clamping device can achieve the best fixing effect due to errors of manual operation. Once the shape or size of the forklift pallet or overhead guard changes, the placement and adjustment of the gripping tools needs to be re-performed, further increasing the complexity and cost of production.
2. Can only weld on one side
Conventional laser welding jig platforms typically only weld a single face of a forklift shelf or overhead guard. After one side of the welding is finished, the forklift shelf or the overhead guard is required to be taken down from the clamp to be overturned, and then the forklift shelf or the overhead guard is fixed on the clamp again to weld the other side of the forklift shelf or the overhead guard. The operation mode is complex, and in the overturning and re-fixing process, the forklift shelf or the overhead guard is easily displaced or deformed, so that the welding precision and quality are affected. In addition, frequent clamping and disassembling operations can also increase the damage risk of the surfaces of the forklift shelf or the overhead guard, and the appearance quality of products is reduced. Meanwhile, as the forklift baffle shelf or the overhead guard is required to be fixed again in each welding, the production period is greatly prolonged, and the production efficiency is reduced.
3. Applicable forklift baffle shelf and overhead guard with single shape and size
Most of the existing clamp platforms can only adapt to the welding of forklift shelves or overhead guards with specific shapes and sizes. The design and layout of the clamping device are usually optimized for a forklift shelf or overhead guard of a certain specification, and when the forklift shelf or overhead guard of different shapes or sizes needs to be welded, the existing clamping device often cannot meet the requirements. Moreover, when the production of the forklift shelf or the overhead guard with different specifications is switched, a great deal of time is spent for replacing and debugging the clamp, the production efficiency is further reduced, and the production flexibility and the market competitiveness of enterprises are limited.
4. Repositioning the clamping device is costly and inefficient
When welding needs to be carried out on forklift shelves or overhead guards of different sizes, the prior art requires rearrangement of clamping devices. This process involves not only the disassembly, installation and adjustment of the clamping device, but also the re-planning and adjustment of the processing station. In the rearrangement process, a large amount of manpower and material resources are required to be input, and the production cost is increased. Meanwhile, due to the fact that a long time is needed for rearranging the clamping device, the downtime of the production line is prolonged, and the utilization rate and the production efficiency of equipment are reduced. Furthermore, frequent clamping device replacement and adjustment also increases wear and failure risk of the equipment, further increasing maintenance costs.
In summary, the existing laser welding fixture platform has a plurality of problems in terms of fixture arrangement, welding surface limitation, suitability for forklift shelf or overhead guard specification, replacement of a clamping device and the like, and cannot meet the requirements of modern manufacturing industry on efficient, flexible and high-quality welding. Therefore, the development of a novel numerical control clamp platform for laser welding, which can solve the problems, has important practical significance
Disclosure of Invention
The application provides a numerical control clamp platform for laser welding.
The application provides a numerical control clamp platform for laser welding, which comprises a positioning mechanism for fixing a beam and a vertical beam of a forklift shelf or a overhead guard, and a turnover assembly for controlling the positioning mechanism to turn over, wherein the positioning mechanism comprises a support rod which is transversely arranged, four telescopic rods which are detachably arranged on the support rod, and a positioning assembly which is detachably arranged on the support rod and is used for clamping and fixing the beam and the vertical beam which are positioned on the four telescopic rods, the four telescopic rods form a parallelogram structure, and the telescopic rods are rotationally connected with each other through end parts;
The transverse beams and the vertical beams are respectively placed on the two telescopic rods which are rotationally connected, a forklift shelf or a top protection frame structure is formed on the four telescopic rods, clamping force in the direction of the telescopic rods is applied to the transverse beams and the vertical beams placed on the four telescopic rods through the positioning components, positioning force in the direction of the parallelogram center of the transverse beams and the vertical beams is synchronously applied, and the forklift shelf or the top protection frame structure is fixed.
Preferably, the telescopic rod comprises an extension arm, an extension rod and a sliding bar, wherein the end part of the extension arm is provided with a telescopic slot along the length direction, and the side surface of the extension arm is provided with a sliding slot opening penetrating through the telescopic slot;
The end parts of the extension rod and the extension arm, which are opposite, are provided with a connecting structure which is connected in a rotating way.
Preferably, the telescopic rod further comprises a telescopic spring penetrating through the telescopic groove, and two ends of the telescopic spring are connected with the bottom wall of the telescopic groove and the end part of the telescopic rod.
Preferably, the connecting structure comprises a rotating block fixedly arranged on the same side surface of the extension rod and the extension arm, and a rotating hole is formed in the rotating block.
Preferably, the four telescopic rods form a parallelogram structure, fixing bolts penetrate through rotating holes formed in two rotating blocks at two opposite corners of the parallelogram structure, and the fixing bolts can be detachably and fixedly installed in mounting holes formed in the rod body of the support rod.
Preferably, when the rotating block is attached to the rotating block, the fixing bolts penetrate through the two rotating holes, and the fixing nuts are in threaded connection with the fixing bolts to rotationally connect the two rotating blocks.
Preferably, when the rotating block is rotationally connected with the rotating block through the fixing bolt, the opposite ends of the rotating block and the rotating block are provided with clamping insections.
Preferably, the positioning assembly comprises a lifting piece detachably arranged on the supporting rod, a distance adjusting piece arranged on the lifting piece and a transverse block transversely arranged and connected with the output end of the distance adjusting piece, wherein two convex blocks downwards extend from the bottom of the transverse block away from the position of the lifting piece, clamping grooves for clamping the transverse beam or the vertical beam are formed between the two convex blocks, the lifting piece is positioned in a window of a forklift shelf or a top protection frame structure, the output end of the lifting piece drives the distance adjusting piece to move upwards, the output end of the distance adjusting piece drives the transverse block to move to the position above the transverse beam or the vertical beam, the output ends of the lifting piece and the distance adjusting piece synchronously shrink, and the transverse block and the convex blocks are driven to respectively compress and tighten the contact surface of the transverse beam or the vertical beam, so that the forklift shelf or the top protection frame structure formed by the transverse beam and the vertical beam is stably positioned.
Preferably, the lifting member comprises a lifting cylinder vertically arranged on the support rod;
The distance adjusting piece comprises a distance adjusting cylinder transversely arranged at the output end of the lifting cylinder, and the distance adjusting cylinder is fixedly arranged at the output end of the lifting cylinder through a connecting block.
Preferably, the turnover assembly comprises a base, a first supporting block and a second supporting block which are symmetrically arranged on two sides of the top end of the base, a first rotating disc and a second rotating disc which are respectively arranged on opposite end surfaces of the first supporting block and the second supporting block in a rotating mode, and a driving motor which is arranged on the base and controls the rotation degree of the first rotating disc or the second rotating disc around the axis, wherein the supporting rod is arranged between the first rotating disc and the second rotating disc along the axis direction of the first rotating disc and the axis direction of the second rotating disc, and two ends of the supporting rod are respectively detachably connected with opposite surfaces of the first rotating disc and the second rotating disc.
The invention has the beneficial effects that:
1. Through demountable installation and length adjustable telescopic link to and but the locating component of nimble adjustment position, can adapt to different shapes and size's fork truck keep off goods shelves or overhead guard fast, improved the fixed efficiency to crossbeam and longeron, improved production efficiency.
2. The design of the overturning assembly can carry out double-sided welding without manual disassembly and re-fixing of the forklift baffle shelf or the overhead guard, so that the whole production efficiency is improved, the overturning angle and the position can be accurately controlled through automatic overturning, the accurate butt joint of the welding surface is also ensured, and the welding precision and quality are improved.
3. The parallelogram structure formed by the four telescopic rods in the positioning mechanism and the accurate compacting and tensioning functions of the positioning assembly provide stable and reliable clamping for the forklift shelf or the overhead guard. In the laser welding process, the forklift baffle shelf or the overhead guard can be effectively prevented from being displaced due to high temperature and vibration, and the welding precision is ensured.
4. The parallelogram structure is formed by four telescopic rods with adjustable length, the welding of the forklift baffle shelves or the overhead guard with different sizes is convenient to adapt by changing the size of the parallelogram, the problem that a plurality of sets of clamp platforms are required to be equipped for forklift baffle shelves or overhead guards with different specifications in the prior art is avoided, and the production cost is reduced.
5. When the production of the forklift shelf or the overhead guard with different specifications is switched, the length of the telescopic rod and the position of the positioning component are controlled to be simply adjusted, and the clamping device is not required to be rearranged. The device reduces the downtime of the device, improves the utilization rate of the device, reduces the abrasion and failure risk of the device caused by frequent replacement of the clamping device, and reduces the maintenance cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
Fig. 1 is a schematic diagram of a simple structure of a numerical control clamp platform for laser welding.
Fig. 2 is a schematic diagram of a structure of a numerical control fixture platform overturning forklift shelf or a top guard for laser welding.
FIG. 3 is a schematic view of a structure of a fixed forklift shelf or overhead guard of the positioning assembly of the present invention.
Fig. 4 is a schematic view of a first telescopic rod according to the present invention.
Fig. 5 is a schematic view of a second telescopic rod according to the present invention.
Fig. 6 is a schematic cross-sectional view of a second telescopic rod according to the present invention.
Fig. 7 is a schematic structural diagram of a positioning assembly according to the present invention.
Fig. 8 is an enlarged schematic view of the structure of fig. 1 at a.
Fig. 9 is an enlarged schematic view of the structure at B in fig. 1.
Fig. 10 is an enlarged schematic view of the structure at B in fig. 1.
The laser welding device comprises a laser welding device 1, a base, a first supporting block 3, a second supporting block 4, a first rotating disc 5, a second rotating disc 6, a supporting rod 7, a mounting rod 8, a mounting rod 9, a connecting rod 10, a mounting hole 11, a cross beam 12, a vertical beam 13, an extension arm 14, an extension rod 15, a rotating block 16, a telescopic groove 17, a sliding notch 18, a telescopic spring 19, a sliding strip 20, a fixing hole 21, a lifting cylinder 22, a distance adjusting cylinder 23, a fixing block 24, a transverse block 25 and a bump.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are attained and can be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, but which are appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention.
In the existing laser welding field, a plurality of problems to be solved are urgent for a clamp platform used for welding operation of a forklift shelf or a overhead guard.
The clamping tool arrangement process of the conventional clamp platform is extremely complicated from the aspect of clamping tool arrangement. Because the shape and the size of the forklift shelves or overhead guards of different specifications are greatly different, operators are required to spend a great deal of time and effort to rearrange and debug the clamping tools each time the forklift shelves or overhead guards of different specifications are replaced and welded. In some special-shaped forklift shelves or overhead guards, it may be necessary to install a plurality of clamps of different shapes and sizes and to precisely adjust their positions and angles to ensure that the forklift shelf or overhead guard can be securely clamped. The process is not only low in efficiency, but also is easy to cause inaccurate clamping due to manual operation errors, and further the welding quality is affected.
In terms of welding function, the existing clamp platforms can only realize single-sided welding. When the forklift baffle shelf or the overhead guard is required to be welded on two sides, one side of the forklift baffle shelf or the overhead guard is required to be welded firstly, then the forklift baffle shelf or the overhead guard is detached from the clamp, and the forklift baffle shelf or the overhead guard is manually turned and then is fixed again, so that the other side of the forklift baffle shelf or the overhead guard can be welded. The operation mode not only increases the production period and reduces the production efficiency, but also can hardly ensure that the position and the angle of the forklift baffle shelf or the overhead guard are completely unchanged in the manual overturning process, and the welding surface is easy to be inaccurate in butt joint, so that the welding precision and the welding quality are influenced.
In addition, the existing clamp platforms are relatively poor in universality and generally can only be suitable for welding forklift shelves or overhead guards of specific shapes and sizes. Once the shape or size of the forklift shelves or overhead guard changes, the corresponding jig platform needs to be redesigned and manufactured, which undoubtedly increases the equipment investment costs and production preparation time for the enterprise. Meanwhile, the process of rearranging the clamping device is complex and time-consuming, the production efficiency is further reduced, and the production cost is increased.
Aiming at the problems in the prior art, the numerical control clamp platform for laser welding provides an innovative solution. The clamp platform mainly comprises a positioning mechanism and a turnover assembly, simplification of clamping tool arrangement, automatic realization of double-sided welding and adaptation to forklift shelves or overhead guards with various shapes and sizes are realized through ingenious design and automatic control, and the problems in the prior art are effectively solved.
Embodiment 1 referring to fig. 1-10, the numerical control clamp platform for laser welding comprises a positioning mechanism for fixing a beam 11 and a vertical beam 12 of a forklift shelf or a top guard frame, and a turnover assembly for controlling the positioning mechanism to turn over, wherein the positioning mechanism comprises a support rod 7 which is transversely arranged, four telescopic rods which are detachably arranged on the support rod 7, and a positioning assembly which is detachably arranged on the support rod 7 and is used for clamping and fixing the beam 11 and the vertical beam 12 which are positioned on the four telescopic rods, the four telescopic rods form a parallelogram structure, the telescopic rods are connected with the telescopic rods through end rotation, the beam 11 and the vertical beam 12 are respectively arranged on the two telescopic rods which are connected in a rotating manner, and form the forklift shelf or the top guard frame structure, and clamping force in the direction of the telescopic rods is applied to the beam 11 and the vertical beam 12 which are arranged on the four telescopic rods through the positioning assembly, and positioning force in the direction of the telescopic rods is synchronously applied to control the beam 11 and the vertical beam 12.
In this embodiment, in the preparation phase, first four detachable telescopic rods are mounted to the support rods 7 arranged transversely (wherein the length of the telescopic rods can be fixed). Because the telescopic rods are connected with each other through the end parts in a rotating way, the four telescopic rods form a parallelogram structure. And two of the relative rotation connection positions are detachably arranged on the support rod 7, and at the moment, under the condition that the length of the four telescopic rods on the support rod 7 is fixed, the two rotation connection positions are detachably arranged on the support rod 7, so that the fixing of the positions of the four telescopic rods on the support rod 7 is ensured. And then the cross beam 11 and the vertical beams 12 of the forklift shelf or overhead guard are respectively placed on the two telescopic rods which are rotationally connected, at this time, the two cross beams 11 and the two vertical beams 12 form a forklift shelf or overhead guard structure on the four telescopic rods, and the abutting positions of the cross beam 11 and the vertical beams 12 are positioned on the outer sides of the four telescopic rods. And simultaneously, the positioning component synchronously applies positioning force for controlling the cross beam 11 and the vertical beam 12 to face the center direction of the parallelogram so as to realize stable fixation of a forklift shelf or a top guard structure. The stability of the cross beam 11 and the vertical beam 12 in the welding process is guaranteed through accurate positioning and fixing, and welding errors are reduced, so that the quality of the forklift shelf or overhead guard for laser welding is improved, and the dimensional accuracy and the structural strength of the forklift shelf or overhead guard are guaranteed. The laser welding device 1 that the cooperation set up welds crossbeam 11 and vertical roof beam 12 butt position, and crossbeam 11 and vertical roof beam 12 butt position are located the telescopic link outside to guaranteed that laser welding device 1 can weld the vertical direction of crossbeam 11 and vertical roof beam 12 butt position, avoided the telescopic link to cause the interference to welding operation, guaranteed welded stability and gone on. And after this face welding is accomplished, through control upset subassembly, drive positioning mechanism (including bracing piece 7, telescopic link, crossbeam 11, vertical beam 12, positioning assembly and the fork truck after the one side welding is accomplished keep off goods shelves or overhead guard) and overturn, so that laser welding device 1 welds fork truck keeps off goods shelves or overhead guard structure another side, laser welding device 1 has been guaranteed to the fork truck and has kept off goods shelves or overhead guard structure comprehensive welding, the problem that traditional anchor clamps can't realize multi-angle welded has been solved, laser welding's flexibility and efficiency have been improved.
As shown in fig. 10, a in fig. 10 is a fixed state diagram of the positioning assembly to the forklift shelf structure, and B in fig. 10 is a fixed state diagram of the positioning assembly to the forklift overhead guard structure.
In this embodiment, constitute parallelogram structure through detachable telescopic link, can adjust the space size that four telescopic links enclose in a flexible way to adapt to not unidimensional fork truck keeps off goods shelves or protects the placement of roof rack crossbeam 11 and vertical beam 12, solved traditional anchor clamps and be difficult to adapt to multiple size fork truck and keep off goods shelves or protect the fixed problem of roof rack. The locating component not only can apply the clamping force towards the direction of the telescopic rod to the cross beam 11 and the vertical beam 12, but also can synchronously apply the locating force towards the center direction of the parallelogram, and the double-gravity application mode can more accurately fix the cross beam 11 and the vertical beam 12 at a preset position, so that the problem of welding quality reduction caused by shaking or shifting of a forklift shelf or a overhead guard in the laser welding process is avoided.
In this embodiment, adjustable telescopic link structure and detachable mounting means for this numerical control anchor clamps platform can be applicable to the fork truck fender goods shelves or the overhead guard welding of multiple equidimension and shape, has strengthened the commonality of equipment greatly, has reduced the equipment purchasing cost of enterprise. And the detachable installation design of each part is convenient for the assembly, debugging and maintenance of the equipment, reduces the operation difficulty and improves the operability and maintainability of the equipment.
As shown in fig. 4, in the first telescopic rod structure, the telescopic rod comprises an extension arm 13, an extension rod 14 and a sliding bar 19, wherein a telescopic slot 16 is formed in the end portion of the extension arm 13 along the length direction, a sliding notch 17 penetrating through the telescopic slot 16 is formed in the side face of the extension arm 13, one end of the extension rod 14 is slidably arranged in the telescopic slot 16 in a penetrating manner, the sliding bar 19 is slidably arranged in the sliding notch 17 and fixedly arranged on the rod body of the extension rod 14, and compared with the telescopic rod structure in the prior art, the end portion of the extension rod 14 and the end portion of the extension arm 13 are provided with a connecting structure in a rotating connection manner, in which one end rod body is larger than the other end rod body, the telescopic rod structure in the prior art can lead to the situation that the cross beam 11 and the vertical beam 12 incline due to the fact that the thickness states of the two end rod bodies are different when the cross beam 11 and the vertical beam 12 are placed on two rotating connection telescopic rods, the forklift shelf or a top frame structure formed by the cross beam 11 and the vertical beam 12 is not convenient to stably fix the forklift shelf or the top frame structure in a sliding manner, compared with the telescopic rod structure in the invention, the arrangement of the sliding bar 19 in which the sliding notch 17 is arranged on the connecting structure is guaranteed, and the telescopic rod 11 and the telescopic rod structure is conveniently contacted with the telescopic rod assembly in the same plane or after the telescopic rod is placed on the same plane.
As shown in fig. 5-6, in the second telescopic rod structure, the telescopic rod comprises two telescopic arms 13, an telescopic rod 14 and a sliding strip 19, wherein telescopic grooves 16 are formed in opposite end portions of the two telescopic arms 13 along the length direction, sliding notch 17 penetrating through the telescopic grooves 16 are formed in the side face of the telescopic arm 13, two ends of the telescopic rod 14 are respectively and slidably arranged in different telescopic grooves 16, the sliding strip 19 is slidably arranged in the sliding notch 17 and fixedly arranged on a rod body of the telescopic rod 14, and a connecting structure in rotary connection is arranged on opposite end portions of the two telescopic arms 13.
The telescopic rod length is fixed in various ways, in this embodiment, the position between the telescopic rod 14 and the telescopic arm 13 is preferably fixed by a bolt, the side surface of the telescopic arm 13 is provided with a fixing hole 20 communicated with the inside of the telescopic slot 16, the bolt is in threaded connection with the fixing hole 20 by the bolt, and the end part of the bolt is tightly abutted on the side surface of the telescopic rod 14 penetrating through the telescopic slot 16 by rotating the bolt, so that the position between the telescopic rod 14 and the telescopic arm 13 is conveniently fixed, and compared with various fixing structures in the prior art, the telescopic rod is fixed by the bolt, so that the telescopic rod is simple in structure and convenient to operate on one hand, and the cost is reduced on the other hand.
As shown in fig. 1-6, in this embodiment, the telescopic rod further includes a telescopic spring 18 penetrating into the telescopic slot 16, two ends of the telescopic spring 18 are connected with the bottom wall of the telescopic slot 16 and the end of the extension rod 14, and in the fixture platform, when the length of the extension rod 14 penetrating into the extension arm 13 is adjusted, the telescopic rod is used for buffering the transient impact force generated in the stretching process due to the too strong adjustment, so that the adjusting process of the telescopic rod is more stable, and the situation that the telescopic rod is damaged or the forklift shelf or overhead guard is positioned inaccurately due to the rapid or large-force stretching is avoided.
As shown in fig. 1-6 and 9, in this embodiment, the connection structure includes a rotating block 15 fixedly disposed on the same side surface of the extension rod 14 and the extension arm 13, a rotating hole is formed in the rotating block 15, in this embodiment, when the extension rods are rotationally connected, the two rotating blocks 15 are directly controlled to be overlapped, and the two rotating blocks pass through the rotating hole through a bolt, and are connected through a nut at the other end of the bolt, so that the rotational connection between the extension rod and the extension rod is realized.
As shown in fig. 9, in the present embodiment, when the rotating block 15 is attached to the rotating block 15, the fixing bolt passes through the two rotating holes, and the fixing nut is screwed with the fixing bolt to rotationally connect the two rotating blocks 15.
As shown in fig. 1-3, in this embodiment, four telescopic rods form a parallelogram structure, fixing bolts penetrate through rotating holes formed in two rotating blocks 15 at two opposite corners of the parallelogram structure, the fixing bolts can be detachably and fixedly installed in installing holes 10 formed in a shaft of a supporting rod 7, the two rotating blocks 15 are fixedly installed in the installing holes 10 through the fixing bolts, the positions of extension rods 14 or extension arms 13 connected with the fixed two rotating blocks 15 can be fixed, and when the four telescopic rods form the parallelogram structure, the parallelogram structure is fixed at the moment, so that the stability of the subsequent fixing of a forklift shelf or overhead guard structure on the telescopic rods formed by a cross beam 11 and a vertical beam 12 is facilitated, and the stability and precision of welding of the subsequent laser welding device 1 to the forklift shelf or overhead guard structure are ensured.
As shown in fig. 9, in this embodiment, when the rotating block 15 is rotationally connected with the rotating block 15 through a fixing bolt, the opposite ends of the rotating block 15 and the rotating block 15 are provided with clamping insections, when the rotating block 15 is rotationally connected and fixed with the rotating block 15 through a bolt, at this time, because the opposite end surfaces of the rotating block 15 and the rotating block 15 are provided with clamping insections, the two rotating blocks 15 are mutually attached, after the four telescopic rods form a parallelogram structure, the four telescopic rods are directly connected with the threads of the bolts through nuts, so that the adjacent rotating blocks 15 are controlled to be tightly clamped, and the stability of the positions between the rotating block 15 and the rotating block 15 is ensured, so that the stability of the parallelogram structure formed by the four telescopic rods is ensured.
As shown in fig. 1-2, the positioning assembly comprises a lifting member detachably arranged on the supporting rod 7, a distance adjusting member arranged on the lifting member, and a transverse block 24 transversely arranged and connected with the output end of the distance adjusting member, wherein two protruding blocks 25 extend downwards from the bottom of the transverse block 24 away from the position of the lifting member, clamping grooves for clamping the transverse beam 11 or the vertical beam 12 are formed between the two protruding blocks 25, the lifting member is positioned in a window of a forklift shelf or a overhead guard structure, the output end of the lifting member drives the distance adjusting member to move upwards, the output end of the distance adjusting member drives the transverse block 24 to move above the transverse beam 11 or the vertical beam 12, the output ends of the lifting member and the distance adjusting member synchronously shrink, and the transverse block 24 and the protruding blocks 25 are driven to respectively compress and tighten contact surfaces of the transverse beam 11 or the vertical beam 12, so that the forklift shelf or the overhead guard structure formed by the transverse beam 11 and the vertical beam 12 is stably positioned.
In this embodiment, after the forklift shelf or overhead guard beam 11 and the vertical beam 12 are placed on the telescopic rod to form the forklift shelf or overhead guard structure, the lifter starts to work. Because the lifting piece is positioned in the window of the forklift baffle shelf or the overhead guard structure, the lifting piece cannot interfere with the forklift baffle shelf or the overhead guard. The output end of the lifting member moves upwards to drive the distance adjusting member to rise together, so that the transverse block 24 and the convex block 25 move upwards along with the distance adjusting member until the transverse block 24 moves to a proper height above the transverse beam 11 or the vertical beam 12. When the lateral mass 24 reaches the appropriate height, the distance-adjusting member output starts to move laterally, pushing the lateral mass 24 horizontally closer to the cross beam 11 or the vertical beam 12. The distance adjusting piece can accurately move the transverse block 24 to the position right above the transverse beam 11 or the vertical beam 12 according to preset parameters or real-time feedback information through an accurate control system, so that the protruding block 25 is positioned above the side surface of the forklift shelf or the overhead guard. After the lateral mass 24 and the bump 25 reach the proper position, the lift and pitch adjustment member outputs begin to retract synchronously. The output end of the lifting piece is contracted downwards, so that the transverse block 24 and the protruding blocks 25 move downwards, at the moment, the clamping grooves formed between the two protruding blocks 25 are clamped on the beam body of the transverse beam 11 or the vertical beam 12, the position between the transverse beam 11 or the vertical beam 12 and the protruding blocks 25 is relatively fixed, and downward pressing force is applied to the contact surface of the transverse beam 11 or the vertical beam 12. Meanwhile, the output end of the distance adjusting piece contracts towards the direction close to the center of the forklift shelf or the overhead guard, and the transverse block 24 drives the lug 25 to apply tension force towards the center of the parallelogram to the transverse beam 11 or the vertical beam 12. The two forces are matched with each other to fix the forklift baffle rack or the overhead guard structure from multiple directions, so that the forklift baffle rack or the overhead guard is effectively prevented from being displaced or deformed in the welding process, stable positioning of the forklift baffle rack or the overhead guard structure is realized, and a stable positioning system is formed under the combined action of the two forces, so that various external forces such as vibration, thermal stress and the like possibly generated in the welding process can be resisted. This positioning has a high degree of flexibility and accuracy. The lifting piece and the distance adjusting piece can be respectively adjusted in the vertical direction and the horizontal direction, so that the forklift shelf or overhead guard structure with different sizes and shapes can be adapted. Meanwhile, through accurately controlling the movement of the output end, the accurate positioning of the forklift shelf or the overhead guard can be realized, and the welding quality and the production efficiency are improved. In addition, the positioning assembly is relatively simple in structure and easy to install and maintain, and production cost and use difficulty are reduced.
As shown in fig. 7 and 8, the lifting member comprises a lifting cylinder 21 vertically arranged on the supporting rod 7, the distance adjusting member comprises a distance adjusting cylinder 22 transversely arranged on the output end of the lifting cylinder 21, the distance adjusting cylinder 22 is fixedly arranged on the output end of the lifting cylinder 21 through a connecting block, and the lifting cylinder 21 is detachably arranged on the supporting rod 7 through a fixing block 23 arranged on the side face.
As shown in fig. 1-2, in this embodiment, the turnover assembly includes a base 2, a first supporting block 3 and a second supporting block 4 symmetrically disposed on two sides of the top end of the base 2, a first rotating disk 5 and a second rotating disk 6 respectively rotatably disposed on opposite end surfaces of the first supporting block 3 and the second supporting block 4, and a driving motor disposed on the base 2 and controlling the first rotating disk 5 or the second rotating disk 6 to rotate 180 degrees around an axis, a supporting rod 7 is disposed between the first rotating disk 5 and the second rotating disk 6 along the axis direction of the first rotating disk 5 and the second rotating disk 6, two ends of the supporting rod are respectively detachably connected with opposite surfaces of the first rotating disk 5 and the second rotating disk 6, a mounting rod 8 is vertically fixed on an end surface of the supporting rod 7, and the mounting rods 8 on two ends of the supporting rod 7 are respectively detachably mounted on opposite surfaces of the first rotating disk 5 and the second rotating disk 6 through bolts, so that the mounting of the supporting rod 7 can be realized.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The numerical control clamp platform for laser welding comprises a positioning mechanism for fixing a beam (11) and a vertical beam (12) of a forklift shelf or a overhead guard and a turnover assembly for controlling the positioning mechanism to turn over, and is characterized in that the positioning mechanism comprises a supporting rod (7) which is transversely arranged, four telescopic rods which are detachably arranged on the supporting rod (7), and a positioning assembly which is detachably arranged on the supporting rod (7) and is used for clamping and fixing the beam (11) and the vertical beam (12) which are positioned on the four telescopic rods, wherein the four telescopic rods form a parallelogram structure, and the telescopic rods are rotationally connected with each other through end parts;
the transverse beams (11) and the vertical beams (12) are respectively placed on two telescopic rods which are rotationally connected, a forklift shelf or a top protection frame structure is formed on the four telescopic rods, clamping force in the direction of the telescopic rods is applied to the transverse beams (11) and the vertical beams (12) placed on the four telescopic rods through the positioning assembly, positioning force in the direction of the parallelogram center of the transverse beams (11) and the vertical beams (12) is synchronously applied, and the forklift shelf or the top protection frame structure is fixed;
The positioning assembly comprises a lifting piece detachably arranged on the supporting rod (7), a distance adjusting piece arranged on the lifting piece and a transverse block (24) transversely arranged and connected with the output end of the distance adjusting piece, wherein two protruding blocks (25) downwards extend from the bottom of the transverse block (24) away from the position of the lifting piece, and a clamping groove for clamping the cross beam (11) or the vertical beam (12) is formed between the two protruding blocks (25);
The lifting piece is positioned in a window of the forklift shelf or the overhead guard structure, the output end of the lifting piece drives the distance adjusting piece to move upwards, the output end of the distance adjusting piece drives the transverse block (24) to move to the upper part of the transverse beam (11) or the vertical beam (12), the output ends of the lifting piece and the distance adjusting piece shrink synchronously, the transverse block (24) and the convex block (25) are driven to respectively compress and tighten the contact surface of the transverse beam (11) or the vertical beam (12), and the forklift shelf or the overhead guard structure formed by the transverse beam (11) and the vertical beam (12) is stably positioned;
the lifting piece comprises a lifting cylinder (21) vertically arranged on the supporting rod (7);
the distance adjusting piece comprises a distance adjusting cylinder (22) transversely arranged at the output end of the lifting cylinder (21), and the distance adjusting cylinder (22) is fixedly arranged at the output end of the lifting cylinder (21) through a connecting block.
2. The numerical control clamp platform for laser welding according to claim 1, wherein the telescopic rod comprises an extension arm (13), an extension rod (14) and a sliding strip (19), wherein the end part of the extension arm (13) is provided with a telescopic slot (16) along the length direction, the side surface of the extension arm (13) is provided with a sliding notch (17) penetrating through the telescopic slot (16), one end of the extension rod (14) is slidably arranged in the telescopic slot (16), and the sliding strip (19) is slidably arranged in the sliding notch (17) and fixedly arranged on the rod body of the extension rod (14);
the opposite ends of the extension rod (14) and the extension arm (13) are provided with a connecting structure which is connected in a rotating way.
3. The numerical control clamp platform for laser welding as set forth in claim 2, wherein the telescopic rod further comprises a telescopic spring (18) penetrating through the telescopic groove (16), and two ends of the telescopic spring (18) are connected with the bottom wall of the telescopic groove (16) and the end part of the telescopic rod (14).
4. A numerical control clamp platform for laser welding according to claim 2 or 3, wherein the connecting structure comprises a rotating block (15) fixedly arranged on the same side surface of the extension rod (14) and the extension arm (13), and a rotating hole is formed in the rotating block (15).
5. The numerical control clamp platform for laser welding according to claim 4, wherein the four telescopic rods form a parallelogram structure, fixing bolts are arranged in rotating holes formed in two rotating blocks (15) at two opposite corners in a penetrating manner, and the fixing bolts are detachably and fixedly arranged in mounting holes (10) formed in a rod body of the supporting rod (7).
6. The numerical control clamp platform for laser welding according to claim 5, wherein when the rotating blocks (15) are attached to the rotating blocks (15), the fixed nuts are connected with the fixed bolts in a threaded manner to rotationally connect the two rotating blocks (15) through the fixed bolts passing through the two rotating holes.
7. The numerical control clamp platform for laser welding as set forth in claim 6, wherein when the rotating block (15) is rotationally connected with the rotating block (15) through a fixing bolt, engaged insections are formed at opposite ends of the rotating block (15) and the rotating block (15).
8. The numerical control clamp platform for laser welding, as set forth in claim 1, characterized in that the turnover assembly comprises a base (2), a first supporting block (3) and a second supporting block (4) symmetrically arranged at two sides of the top end of the base (2), a first rotating disc (5) and a second rotating disc (6) respectively arranged on opposite end surfaces of the first supporting block (3) and the second supporting block (4), and a driving motor arranged on the base (2) and controlling the first rotating disc (5) or the second rotating disc (6) to rotate 180 degrees around an axis, wherein a supporting rod (7) is arranged between the first rotating disc (5) and the second rotating disc (6) along the axis direction of the first rotating disc (5) and the second rotating disc (6), and two ends are respectively detachably connected with opposite surfaces of the first rotating disc (5) and the second rotating disc (6).
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| CN111250818B (en) * | 2020-04-15 | 2021-08-20 | 宁波宏诺汽车零部件科技有限公司 | An intelligent and efficient coil pipe end cutting mechanism |
| CN113369405B (en) * | 2021-06-10 | 2022-12-13 | 重庆智茂机械制造有限公司 | Production device and production process of automobile silencer |
| CN117102796A (en) * | 2023-06-08 | 2023-11-24 | 中车永济电机有限公司 | A diameter-adjustable welding fixture |
| CN117729721A (en) * | 2023-12-25 | 2024-03-19 | 马鞍山悦创科技有限公司 | Bender switch board with quick fixed knot constructs |
| CN221849191U (en) * | 2024-02-29 | 2024-10-18 | 洛阳盛金友机械有限公司 | Auxiliary supporting table for finishing of robot base |
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