Reinforcing and stabilizing structure for a multi-tool machine for moulding

Abstract

The present application belongs to the technical field of machine tool, and particularly relates to a reinforcing and stabilizing structure of a multi-head machine tool for die machining, which solves the problem of insufficient strength and stability of the overhanging beam. The reinforcing and stabilizing structure of the die machining machine tool is arranged between a chassis and a beam, the beam is perpendicular to the chassis and can move in the length direction and / or the width direction of the chassis, the beam is used for mounting the front end of a machining assembly to be overhangingly projected to the direction of a die placing table, and the reinforcing and stabilizing structure at least includes one or more of a horizontal moving stabilizing structure for improving the horizontal stability of the beam, a vertical stabilizing structure for improving the vertical stability of the beam and a folding resistance reinforcing structure for improving the folding resistance strength of the beam. The effect of improving the strength of the beam and the stability of lifting and horizontal moving is achieved, and the displacement accuracy of the machining assembly is ensured.

Description

Technical Field

[0001] This invention belongs to the field of machine tool technology, and specifically relates to a reinforced and stable structure for a multi-head machine tool for mold processing. Background Technology

[0002] Automobiles are increasingly influencing and even changing our lives. Automotive molds are indispensable in automobile manufacturing, and mold processing relies on machine tools.

[0003] In existing technologies, to increase flexibility, some machine tools employ cantilevered crossbeams with corresponding machining components mounted at the front end. Translational control of the machining components in the XYZ axes is achieved through the lateral and telescopic movement of the crossbeam on the base frame, and the lifting and lowering of the machining components. Furthermore, to improve efficiency, some machine tools group two crossbeams with clutch-operated mechanisms together, with the two outer sides of the crossbeams connected to the base frame via corresponding slides.

[0004] However, firstly, due to the presence of the front-end machining components, the center of gravity of the cantilever beam is mostly located outside the base frame. As the extension distance increases, higher requirements are placed on the rigidity and strength of the beam, as well as its anti-sagging ability at the front end. Secondly, for better closure, there are usually no guards on the inner side of the beam, meaning that the limiting effect on the beam in the lateral direction is weak. During lateral movement, inertia may cause the beam to deviate significantly, affecting machining accuracy. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a reinforced and stable structure for a multi-head machine tool for mold processing.

[0006] To achieve the innovative objectives of this invention, the following technical solutions can be used:

[0007] A reinforcing and stabilizing structure for a mold processing machine tool is disposed between a base frame and a crossbeam. The crossbeam is perpendicular to the base frame and can be translated along the length and / or width direction of the base frame. The front end of the crossbeam for mounting processing components can be suspended and protruded towards the mold placement table. The reinforcing and stabilizing structure includes at least one or more of the following: a lateral stabilizing structure for improving the horizontal stability of the crossbeam, a vertical stabilizing structure for improving the vertical stability of the crossbeam, and a flexural strengthening structure for improving the flexural strength of the crossbeam.

[0008] The machine tool of this invention is mainly used for, but not limited to, mold processing. The mold to be processed is placed on a mold placement table, and a crossbeam is set on a base frame, capable of moving relative to the base frame along the X and Y axes. This crossbeam is a cantilever design, with the processing components located at the cantilever end. Compared to a gantry-type crossbeam, the separate crossbeam makes processing more flexible and improves efficiency. Due to the cantilever design, the stress point between the crossbeam and the base frame is relatively small. To ensure the strength and stability of the crossbeam, a reinforced stabilizing structure is specially designed. The lateral stabilizing structure ensures the accuracy of the crossbeam's movement during lateral motion, reducing excessive deviation in the lateral direction due to inertia. The vertical stabilizing structure improves vertical strength, making the support stress point of the crossbeam closer to the center of gravity, reducing sagging at the front end of the crossbeam and vertical swaying caused by inertia during lifting and lowering. The bending reinforcement structure directly strengthens the crossbeam, reducing the possibility of breakage. Through these three structures, the displacement accuracy of the processing components during the crossbeam's movement is ensured, improving processing precision.

[0009] In the aforementioned reinforced and stable structure of the multi-head mold processing machine tool, the bending-resistant reinforcement structure includes a cable set at the top of the crossbeam, with both ends of the cable connected to the front end and the rear end or middle of the crossbeam, respectively.

[0010] The cables hold the two ends of the crossbeam together, improving its resistance to bending.

[0011] In the aforementioned reinforced and stable structure of the multi-head mold processing machine tool, the crossbeam has a stress-bearing protrusion at the top of its front end. One end of the cable is connected to the connecting part on the stress-bearing protrusion, and the other end is connected to the connecting part at the top of the rear end of the crossbeam. The stress-bearing protrusion is in the shape of a right triangle or a right trapezoid, and the hypotenuse is located below the cable.

[0012] A stress-bearing protrusion is set at the front end of the crossbeam to increase the thickness of the front end. This provides more vertical installation space for the processing components and can also serve as a connection point for the cables. The cables are inclined to the length direction of the crossbeam, so that the stress direction of the connection part forms an acute angle with the length direction of the crossbeam, which improves the stress strength and ensures the bending resistance.

[0013] In the aforementioned reinforced and stabilized structure of a multi-head mold processing machine tool, the crossbeam is a skeleton or frame-type hollow structure, and the bending-resistant reinforcement structure also includes at least one reinforcing rib disposed on the crossbeam; the reinforcing rib is located inside the crossbeam and / or on one or more sides of the crossbeam, and the reinforcing rib is in the shape of a round tube, a square tube, or a triangular tube, and its extension direction is adapted to the length direction of the crossbeam or the extension direction of the top surface of the crossbeam.

[0014] To achieve lightweighting, the crossbeams are skeleton or frame-type with a hollow structure. In addition, to enhance structural strength, reinforcing ribs are also provided. These reinforcing ribs are preferably placed inside the crossbeams and cast directly as a single piece during the casting process. Moreover, the shape of the reinforcing ribs is preferably circular tubular, as the circular tubular structure ensures uniform strength throughout the circumference and provides better flexural resistance.

[0015] In the aforementioned reinforced and stable structure of the multi-head mold processing machine tool, at least one set of crossbeams is distributed along the length direction on the base frame. Each set of crossbeams has two beams, and the two beams are respectively set on L-shaped slides. The L-shaped slides are slidably connected to the base frame and can slide relative to another L-shaped slide in the same set. The crossbeams are located between the vertical sections of the two L-shaped slides.

[0016] Each set of crossbeams consists of two beams, which are set on an L-shaped slide. The vertical cross-section of the slide along the length of the base frame is L-shaped, and the lower side of the two slides in the same set is located on the inner side. The crossbeams are installed on the lower side, so that the two crossbeams can close as much as possible after the two L-shaped slides are brought together, which helps to eliminate blind spots in the processing.

[0017] In the above-mentioned reinforced and stable structure of the multi-head mold processing machine tool, at least two sets of first horizontal slide rail slider assemblies are provided between the bottom of the crossbeam and the horizontal section of the L-shaped slide table. The first horizontal slide rail slider assembly and the horizontal section are perpendicular to the length direction of the base frame. The vertical stabilizing structure is set between the horizontal section of the L-shaped slide table and the bottom of the crossbeam.

[0018] The horizontal section of the L-shaped slide table is connected to the crossbeam via the first horizontal slide rail slider assembly. The slider has a T-shaped or other shape that is larger on the outside and smaller on the inside. The shape of the slide rail corresponds to the slider, which ensures the sliding effect while also keeping the crossbeam stable in a horizontal state.

[0019] In the above-mentioned reinforced and stabilized structure of the multi-head mold processing machine tool, the extension direction of the L-shaped slide is perpendicular to the length direction of the base frame. The vertical stabilizing structure includes an extended force-bearing part disposed on the side of the L-shaped slide near the mold placement table. The slide rail of the first horizontal slide rail slider assembly located at the bottom of the crossbeam and close to the vertical section is arranged on the horizontal section and the extended force-bearing part.

[0020] An extended force-bearing section is integrally provided on the inner side of the horizontal section. The cross-section of the extended force-bearing section is also L-shaped, which provides a longer space for the slide rail, reduces the possibility of the crossbeam tilting forward or even breaking, and achieves the effect of vertical stability.

[0021] In the aforementioned reinforced and stabilized structure of the multi-head mold processing machine tool, a transverse stabilization structure is provided between the vertical section and the crossbeam. The transverse stabilization structure includes a second transverse slide rail slider assembly disposed between the outer side of the crossbeam and the inner side of the vertical section. The arrangement direction of the second transverse slide rail slider assembly is perpendicular to the length direction of the base frame.

[0022] The openings of the two L-shaped slides face each other, meaning the vertical sections of the two L-shaped slides are located on the outside. The structure of the second horizontal slide rail slider assembly is similar to that of the first horizontal slide rail slider assembly, but it is located on the side. On the one hand, it can provide a certain vertical bending strength. More importantly, the second horizontal slide rail slider assembly can pull the crossbeam from the side, ensuring the relative stillness of the crossbeam and the L-shaped slides in the horizontal direction. This avoids large swaying of the crossbeam due to inertia during the lateral movement, thus improving the machining accuracy.

[0023] In the aforementioned reinforced and stable structure of the multi-head mold processing machine tool, the front end of the crossbeam is connected to a tool head mounting platform, which is driven to move up and down by a lifting drive assembly. The lower end of the tool head mounting platform is provided with a tool head assembly. The tool head mounting platforms are located on the adjacent side of the same group of crossbeams, and the two tool head mounting platforms can be brought close together to fit against each other. The tool head mounting platform is a vertically extending tubular shape, and a vertically penetrating mounting hole is provided on the tool head mounting platform. The tool head assembly is located at the lower end of the mounting hole, and the connecting line of the tool head assembly is pulled out from the upper end of the mounting hole. The lower end of the tool head mounting platform is provided with a heat dissipation rib, and the tool head assembly is located inside the heat dissipation rib.

[0024] The tool head mounting platforms are located on the adjacent sides of the two crossbeams in the same group. When the crossbeams are closed, the two tool head mounting platforms can be as close as possible, even touching, which helps to eliminate machining blind spots. The mounting holes on the tool head mounting platforms are vertically continuous, accommodating tool head assemblies of different lengths. The connecting wires of the tool head assemblies can also be pulled out from the top of the mounting holes, making wiring convenient. In addition, the heat dissipation ribs at the bottom of the tool head mounting platforms are located on the outer side of the tool head assembly, which increases the contact area with air and promotes heat dissipation.

[0025] In the aforementioned reinforced and stable structure of a multi-head mold processing machine tool, the length of the base frame is adapted to the length of the mold placement table. A slide rail is provided along the length of the base frame, and several sets of crossbeams are arranged along the length of the slide rail. One set of base frames is arranged parallel to one side of the mold placement table, or both sides of the mold placement table are arranged parallel to each other. At least one set of crossbeams is distributed along the length of the base frame, with the lateral movement paths of adjacent sets of crossbeams coinciding. Each set of crossbeams has two crossbeams, and the lateral movement paths of the two sets of processing components on the two crossbeams are connected or coincident. The base frame, crossbeams, and mold placement table are all equipped with lightweight hollow structures. The rear end of the crossbeam is located outside the base frame, and the rear end of the crossbeam is also equipped with a counterweight structure. The mold placement table includes a plate-shaped placement table or a cradle-type placement table.

[0026] The slide rails are arranged along the length of the base frame, which can be equipped with multiple sets of crossbeams to accommodate the processing needs of molds of different lengths. In each set of crossbeams, the lateral movement paths (X-axis direction) of two processing components intersect or connect, and the lateral movement paths of adjacent sets of crossbeams also intersect or connect, eliminating processing blind spots in the longitudinal direction. Similarly, the extension paths (Y-axis direction) of the processing components on two sets of base frames intersect or connect, eliminating processing blind spots in the transverse direction. Thus, with the coordinated action of each set of processing components, highly efficient processing with zero blind spots can be achieved. Furthermore, the lightweight hollow structure reduces weight while maintaining structural strength, lowering driving force costs and reducing strength requirements at connection points. This lightweight hollow structure can be further achieved by making the base frame or crossbeams into hollow frame structures and setting holes in the main body to achieve lightweighting. To balance the weight at both ends of the crossbeams, the rear end of the crossbeam is always located at the rear of the base frame. Furthermore, a counterweight structure, such as a suspended counterweight block, can be installed at the rear end of the crossbeam to reduce the possibility of the crossbeam tilting forward. In addition, the mold placement table can be a traditional plate-type fixed structure or a cradle-type placement table. The cradle-type placement table can actively adjust its height or tilt angle to improve processing flexibility.

[0027] As an optimization, the cross-section of the base frame is L-shaped with the lower side inside. The bottom of the inner and outer sides of the L-shaped slide table is slidably connected to the lower and higher sides of the base frame through a longitudinal slide rail slider assembly. A drive mounting area is formed between the base frame and the L-shaped slide table. The L-shaped slide table is connected to the transverse drive assembly on the base frame. The transverse drive assemblies of two adjacent sets of L-shaped slide tables are located on the inner side of the base frame or in the drive mounting area.

[0028] The inner side of the base frame is lower than the outer side. The inner and outer sides of the L-shaped slide are slidably connected to the lower and higher sides of the base frame, respectively. The middle position of the top of the base frame forms a drive installation area due to the height difference between the two sides. This installation area can be used to install the transverse drive assembly. In order to make the drive assemblies of the two crossbeams in the same group staggered, the transverse drive assembly of one crossbeam is set in the drive installation area, and the other is preferably set in the inner side of the L-shaped slide, so as to avoid the overlap of the two sets of drive assemblies and provide conditions for the transverse movement paths of the crossbeams to be connected end to end or intersect.

[0029] Furthermore, the transverse drive structure between the L-shaped slide and the base frame, as well as the telescopic drive assembly between the L-shaped slide and the crossbeam, can be implemented using structures such as a lead screw motor or a linear actuator. The lifting drive assembly between the cutter head mounting table and the crossbeam can be implemented using linear actuators such as pneumatic cylinders or electric cylinders.

[0030] Compared with the prior art, the present invention has the following main advantages:

[0031] 1. To ensure the strength and stability of the crossbeam, this invention features a specially designed reinforced stabilizing structure. The lateral stabilizing structure ensures the accuracy of the crossbeam's movement during lateral motion, reducing excessive deviations in the lateral direction due to inertia. The vertical stabilizing structure enhances vertical strength, bringing the crossbeam's support point closer to the center of gravity, reducing sagging at the front end of the crossbeam and vertical swaying caused by inertia during lifting and lowering. The bending reinforcement structure directly strengthens the crossbeam, reducing the possibility of breakage. Through these three structures, the displacement accuracy of the processing components during the crossbeam's movement is ensured, improving processing precision.

[0032] 2. A load-bearing protrusion is provided at the front end of the crossbeam. This protrusion expands the installation position of the processing components and can also serve as a connection point for the cable. The cable is inclined to the length direction of the crossbeam, so that the force direction of the connection part forms an acute angle with the length direction of the crossbeam, thereby improving the stress strength and ensuring the bending resistance.

[0033] 3. An extended force-bearing part is also integrally provided on the inner side of the horizontal section. The cross-section of the extended force-bearing part is also L-shaped, which provides a longer space for the slide rail, reduces the possibility of the crossbeam tilting forward or even breaking, and achieves the effect of vertical stability.

[0034] 4. The second transverse slide rail slider assembly can pull the crossbeam from the side, ensuring the relative stillness of the crossbeam and the L-shaped slide table in the horizontal direction, avoiding large shaking of the crossbeam due to inertia during transverse movement, and improving machining accuracy.

[0035] 5. To achieve lightweighting, the crossbeam is a skeleton or frame type with a hollow structure. To enhance structural strength, the crossbeam is equipped with reinforcing ribs, which are preferably placed inside the crossbeam and cast integrally during casting. The shape of the reinforcing ribs is preferably circular tubular, as the circular tubular structure ensures uniform strength throughout the circumference and provides better flexural resistance. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the single-unit base frame and its crossbeams and other structures provided by the present invention;

[0037] Figure 2 This is a schematic diagram of the base frame, crossbeam, and mold placement platform of Embodiment 1 provided by the present invention;

[0038] Figure 3 This invention provides Figure 1 Front view diagram;

[0039] Figure 4 This is a cross-sectional schematic diagram of the beam provided by the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the L-shaped slide provided by the present invention;

[0041] Figure 6 This is a schematic diagram of the base frame, crossbeams, and mold placement platform of Embodiment 2 provided by the present invention (only one set of crossbeams is shown on each set of base frames);

[0042] Figure 7 This is a schematic diagram of the base frame, crossbeam, and mold placement platform of Embodiment 3 provided by the present invention.

[0043] In the figure, 1 is the mold placement platform, 2 is the base frame, 3 is the crossbeam, 4 is the lifting drive structure, 5 is the processing component, 6 is the bending reinforcement structure, 7 is the cable, 8 is the force-bearing protrusion, 9 is the connecting part, 10 is the telescopic drive component, 11 is the L-shaped slide table, 12 is the vertical section, 13 is the horizontal section, 14 is the first horizontal slide rail slider assembly, 15 is the extended force-bearing part, 17 is the longitudinal slide rail slider assembly, 18 is the drive mounting area, 19 is the transverse drive component, 20 is the cutter head mounting platform, 21 is the lifting drive component, 22 is the cutter head assembly, 23 is the mounting hole, 24 is the heat dissipation rib, 25 is the slide rail, 27 is the second horizontal slide rail slider assembly, 28 is the reinforcing rib, 29 is the transverse stabilizing structure, and 30 is the vertical stabilizing structure. Detailed Implementation

[0044] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0045] Example 1

[0046] Specific implementation examples Figures 1-5As shown, the reinforcing and stabilizing structure of this mold processing machine tool is set between the base frame 2 and the crossbeam 3. The crossbeam 3 is perpendicular to the base frame 2 and can be translated along the length and / or width direction of the base frame 2. The front end of the crossbeam 3 for mounting the processing component 5 is suspended and protruded towards the mold placement table 1. A set of base frames 2 is arranged parallel to one side of the mold placement table 1. The reinforcing and stabilizing structure includes a transverse stabilizing structure 29 for improving the horizontal stability of the crossbeam 3, a vertical stabilizing structure 30 for improving the vertical stability of the crossbeam 3, and a flexural strengthening structure 6 for improving the flexural strength of the crossbeam 3.

[0047] Specifically, the processing machine tool of the present invention is mainly used for, but not limited to, mold processing. The mold to be processed is placed on the mold placement table 1, and the crossbeam 3 is set on the base frame 2. It can move relative to the base frame 2 along the X-axis and Y-axis directions. The crossbeam 3 is a cantilever type, and the processing component 5 is located at the cantilever end. Compared with the gantry type crossbeam 3, the split crossbeam 3 makes the processing more flexible and improves efficiency. Because of the cantilever design, the stress point between the crossbeam 3 and the base frame 2 is relatively small. To ensure the strength and stability of the crossbeam 3, a reinforced stabilizing structure is specially designed. The lateral stabilizing structure 29 can ensure the motion accuracy of the crossbeam 3 during lateral movement and reduce excessive deviation in the lateral direction caused by inertia. The vertical stabilizing structure 30 is used to improve the vertical strength, so that the support stress point of the crossbeam 3 is closer to the center of gravity, reducing the sagging of the front end of the crossbeam 3 and the vertical swaying caused by inertia during lifting and lowering. The bending reinforcement structure 6 is used to directly strengthen the strength of the crossbeam 3 and reduce the possibility of breakage. Through these three structures, the displacement accuracy of the processing component 5 during the movement of the crossbeam 3 can be guaranteed, and the processing accuracy can be improved.

[0048] like Figure 1 , Figure 2 , Figure 4 As shown, the flexural strengthening structure 6 includes a cable 7 disposed at the top of the crossbeam 3, with both ends of the cable 7 connected to the front end and the rear end or middle of the crossbeam 3, respectively. The crossbeam 3 has a stress-bearing protrusion 8 at the top of the front end, and one end of the cable 7 is connected to a connecting part 9 on the stress-bearing protrusion 8, and the other end is connected to a connecting part 9 at the top of the rear end of the crossbeam 3; the stress-bearing protrusion 8 is in the shape of a right triangle or a right trapezoid, and the hypotenuse is located below the cable 7.

[0049] Specifically, the cable 7 holds both ends of the crossbeam 3, improving its flexural strength. A load-bearing protrusion 8 is provided at the front end of the crossbeam 3, increasing its thickness. This provides more vertical installation space for the processing component 5 and also serves as a connection point for the cable 7. The cable 7 is inclined to the length direction of the crossbeam 3, so that the force direction of the connecting part 9 forms an acute angle with the length direction of the crossbeam 3, improving its strength and ensuring flexural resistance.

[0050] In this embodiment, the crossbeam 3 is a skeleton-type hollow structure, and the bending-resistant strengthening structure 6 also includes two reinforcing ribs 28 disposed on the crossbeam 3; the reinforcing ribs 28 are located inside the crossbeam 3, the reinforcing ribs 28 are in the shape of a round tube, and the extension direction is adapted to the extension direction of the top surface of the crossbeam 3.

[0051] Specifically, in order to achieve lightweighting, the crossbeam 3 is a skeleton or frame type with a hollow structure on the beam body. At the same time, in order to enhance the structural strength, a reinforcing rib 28 is also provided. The reinforcing rib 28 is preferably set inside the crossbeam 3 and is cast directly as a whole during casting. Moreover, the shape of the reinforcing rib 28 is preferably circular tubular. The circular tubular structure makes the strength uniform in all directions and has better flexural resistance.

[0052] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, a set of crossbeams 3 are distributed along the length of the base frame 2. Each set of crossbeams 3 has two beams, which are respectively mounted on L-shaped slides 11. The L-shaped slides 11 are slidably connected to the base frame 2 and can slide relative to another L-shaped slide 11 in the same set. The crossbeams 3 are located between the vertical sections 12 of the two L-shaped slides 11. Two sets of first horizontal slide rail slider assemblies 14 are provided between the bottom of the crossbeams 3 and the horizontal section 13 of the L-shaped slides 11. The first horizontal slide rail slider assemblies 14 and the horizontal section 13 are perpendicular to the length direction of the base frame 2. A vertical stabilizing structure 30 is provided between the horizontal section 13 of the L-shaped slides 11 and the bottom of the crossbeams 3. The L-shaped slide table 11 extends perpendicularly to the length direction of the base frame 2. The vertical stabilizing structure 30 includes an extended force-bearing portion 15 located on the side of the L-shaped slide table 11 near the mold placement platform 1. The slide rail 25 of the first horizontal slide rail slider assembly 14, located at the bottom of the crossbeam 3 and near the vertical section 12, is arranged on the horizontal section 13 and the extended force-bearing portion 15. A transverse stabilizing structure 29 is provided between the vertical section 12 and the crossbeam 3. The transverse stabilizing structure 29 includes a second horizontal slide rail slider assembly 27 located between the outer side of the crossbeam 3 and the inner side of the vertical section 12. The arrangement direction of the second horizontal slide rail slider assembly 27 is perpendicular to the length direction of the base frame 2.

[0053] Specifically, each set of crossbeams 3 consists of two beams, which are mounted on an L-shaped slide table 11. The slide table has an L-shaped vertical cross-section along the length of the base frame 2, with the lower sides of the two slide tables in the same set located on the inner side. The crossbeams 3 are installed on this lower side, allowing the two crossbeams 3 to close as much as possible when the two L-shaped slide tables 11 are brought together, thus eliminating blind spots in the machining process. The horizontal section 13 of the L-shaped slide table 11 is connected to the crossbeam 3 via a first horizontal slide rail slider assembly 14. The slider has a T-shaped cross-section or another shape that is larger on the outside and smaller on the inside. The shape of the slide rail 25 corresponds to the slider, ensuring both smooth sliding and stable horizontal position of the crossbeam 3. An extended force-bearing section 15 is integrally provided on the inner side of the horizontal section 13. This extended force-bearing section 15 also has an L-shaped cross-section, providing a longer space for the slide rail 25, reducing the possibility of the crossbeam 3 tilting forward or even breaking, thus achieving the effect of a vertically stable structure 30. The openings of the two L-shaped slides 11 face each other, that is, the vertical sections 12 of the two L-shaped slides 11 are located on the outside. The structure of the second horizontal slide rail slider assembly 27 is similar to that of the first horizontal slide rail slider assembly 14, but it is set on the side. On the one hand, it can also provide a certain vertical bending strength. More importantly, the second horizontal slide rail slider assembly 27 can pull the crossbeam 3 from the side, ensuring the relative staticity of the crossbeam 3 and the L-shaped slides 11 in the horizontal direction, avoiding large shaking of the crossbeam 3 due to inertia during the horizontal movement, and improving the processing accuracy.

[0054] like Figures 1-3 As shown, a cutter head mounting platform 20 is connected to the front end of the crossbeam 3 and is driven to rise and fall by the lifting drive assembly 21. A cutter head assembly 22 is provided at the lower end of the cutter head mounting platform 20. The cutter head mounting platforms 20 are located on the same side of the crossbeam 3 in the same group, and the two cutter head mounting platforms 20 can be close to each other. The cutter head mounting platform 20 is a vertically extending tube. A vertical through mounting hole 23 is provided on the cutter head mounting platform 20. The cutter head assembly 22 is located at the lower end of the mounting hole 23. The connecting line of the cutter head assembly 22 is pulled out from the upper end of the mounting hole 23. A heat dissipation rib 24 is provided at the lower end of the cutter head mounting platform 20, and the cutter head assembly 22 is located in the heat dissipation rib 24.

[0055] Specifically, the tool head mounting platform 20 is located on the adjacent side of the two crossbeams 3 in the same group. When the crossbeams 3 are closed, the two tool head mounting platforms 20 can be as close as possible, even touching, which helps to eliminate blind spots in machining. The mounting holes 23 on the tool head mounting platform 20 are vertically penetrating, which can accommodate tool head assemblies 22 of different lengths. The connecting wires of the tool head assembly 22 can also be pulled out from the upper end of the mounting holes 23, making wiring convenient. In addition, the heat dissipation ribs 24 at the bottom of the tool head mounting platform 20 are located on the outer side of the tool head assembly 22, which can increase the contact area with air and facilitate heat dissipation.

[0056] In this embodiment, the length of the base frame 2 is adapted to the length of the mold placement platform 1. A slide rail 25 is provided on the base frame 2 along the length direction, and several sets of crossbeams 3 are arranged on the slide rail 25 along the length direction. A set of base frames 2 is arranged parallel to one side of the mold placement platform 1. A set of crossbeams 3 is distributed on the base frame 2 along the length direction. The lateral movement paths of adjacent sets of crossbeams 3 coincide. Each set of crossbeams 3 has two crossbeams. The lateral movement paths of the two sets of processing components 5 on the two crossbeams 3 are connected or coincident. The mold placement platform 1 includes a plate-shaped placement platform or a cradle-type placement platform.

[0057] Specifically, the slide rail 25 is arranged along the length of the base frame 2. Multiple sets of crossbeams 3 can be installed on the base frame 2 to adapt to the processing requirements of molds of different lengths. In each set of crossbeams 3, the lateral movement paths (X-axis direction) of two processing components 5 intersect or connect, and the lateral movement paths of adjacent sets of crossbeams 3 also intersect or connect, eliminating processing blind spots in the longitudinal direction. The extension paths (Y-axis direction) of the processing components 5 on the two sets of base frames 2 are also intersected or connected, eliminating processing blind spots in the transverse direction. Thus, with the cooperative action of each set of processing components 5, efficient processing with zero blind spots can be achieved. In addition, the lightweight hollow structure reduces weight while ensuring structural strength, reduces driving force costs and strength requirements at connection points. This lightweight hollow structure can be further achieved by making the base frame 2 or crossbeams 3 into a hollow frame structure and setting holes in the main body. To balance the weight at both ends of the crossbeam 3, the rear end of the crossbeam 3 is always located behind the base frame 2. Furthermore, a counterweight structure, such as a suspended counterweight block, can be installed at the rear end of the crossbeam 3 to reduce the possibility of the crossbeam 3 tilting forward. In addition, the mold placement table 1 can be a traditional plate-type fixed structure or a cradle-type placement table. The cradle-type placement table can actively adjust its height or tilt angle to improve processing flexibility.

[0058] As an optimization, the cross-section of the base frame 2 is L-shaped with the lower side inside. The bottom of the inner and outer sides of the L-shaped slide table 11 is slidably connected to the lower and higher sides of the base frame 2 through the longitudinal slide rail slider assembly 17, respectively. A drive mounting area 18 is formed between the base frame 2 and the L-shaped slide table 11. The L-shaped slide table 11 is connected to the transverse drive assembly 19 on the base frame 2. The transverse drive assemblies 19 of two adjacent sets of L-shaped slide tables 11 are located on the inner side of the base frame 2 or in the drive mounting area 18, respectively.

[0059] Specifically, the inner side of the base frame 2 is lower than the outer side, and the inner and outer sides of the L-shaped slide table 11 are slidably connected to the lower and higher sides of the base frame 2, respectively. The middle position of the top of the base frame 2 forms a drive installation area 18 due to the height difference on both sides. This installation area can be used for the installation of the transverse drive assembly 19. In order to make the drive assemblies of the two crossbeams 3 in the same group staggered, the transverse drive assembly 19 of one crossbeam 3 is set in the drive installation area 18, and the other is preferably set in the inner side of the L-shaped slide table 11, so as to avoid the overlap of the two sets of drive assemblies and provide conditions for the transverse movement path of the crossbeam 3 to be connected end to end or intersect.

[0060] The specific working principle is as follows: The mold to be processed is placed in the center and fixed on the mold placement platform 1. The processing components 5 are installed in the corresponding position and number according to the length of the mold. The movement of the L-shaped slide 11, the crossbeam 3 and the cutter head mounting platform 20 realizes the movement control of the XYZ three-axis direction, so as to realize the processing of the processing components 5.

[0061] Example 2

[0062] The working principle of this embodiment is basically the same as that of embodiment 1, except that the number and position of the base frame 2 are different.

[0063] Specific implementation examples Figure 6 As shown, a set of base frames 2 are arranged parallel to each other on both sides of the mold placement platform 1, and a crossbeam 3 is installed on the base frame 2.

[0064] Example 3

[0065] The working principle of this embodiment is basically the same as that of embodiment 1, except that the mold placement platform 1 is different.

[0066] Specific implementation examples Figure 7 As shown, the mold placement platform 1 is a cradle-type placement platform that can be actively raised, lowered, or have its tilt angle adjusted.

[0067] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A reinforced and stable structure for a multi-head mold processing machine tool, disposed between a base frame (2) and a crossbeam (3), wherein the crossbeam (3) is perpendicular to the base frame (2) and is capable of translational movement along the length and / or width direction of the base frame (2), characterized in that, The front end of the beam (3) used to install the processing component (5) is suspended in the direction of the mold placement table (1). The strengthening and stabilizing structure includes at least one or more of the following: a transverse stabilizing structure (29) for improving the horizontal stability of the beam, a vertical stabilizing structure (30) for improving the vertical stability of the beam, and a flexural strengthening structure (6) for improving the flexural strength of the beam. The base frame (2) has at least one set of crossbeams (3) distributed along its length. Each set of crossbeams (3) has two crossbeams, and the two crossbeams (3) are respectively set on L-shaped slides (11). The L-shaped slides (11) are slidably connected to the base frame (2) and can slide relative to another L-shaped slide (11) in the same set. The crossbeams (3) are located between the vertical sections (12) of the two L-shaped slides (11). The cross-section of the base frame (2) is L-shaped with the lower side inside. The bottom of the inner and outer sides of the L-shaped slide (11) are slidably connected to the lower and higher sides of the base frame (2) respectively through the longitudinal slide rail slider assembly (17). A drive mounting area (18) is formed between the base frame (2) and the L-shaped slide (11). The L-shaped slide (11) is connected to the transverse drive assembly (19) on the base frame (2). The transverse drive assemblies (19) of two adjacent sets of L-shaped slides (11) are located on the inner side of the base frame (2) or in the drive mounting area (18). A transverse stabilizing structure (29) is provided between the vertical section (12) and the crossbeam (3). The transverse stabilizing structure (29) includes a second transverse slide rail slider assembly (27) disposed between the outer side of the crossbeam (3) and the inner side of the vertical section (12). The arrangement direction of the second transverse slide rail slider assembly (27) is perpendicular to the length direction of the base frame (2).

2. The reinforced and stable structure of the multi-head mold processing machine tool according to claim 1, characterized in that, The flexural strengthening structure (6) includes a cable (7) set at the top of the crossbeam (3), and the two ends of the cable (7) are respectively connected to the front end and the rear end or the middle of the crossbeam (3).

3. The reinforced and stable structure of the multi-head mold processing machine tool according to claim 2, characterized in that, The crossbeam (3) has a force-bearing protrusion (8) at the top of the front end. One end of the cable (7) is connected to the connecting part (9) on the force-bearing protrusion (8), and the other end is connected to the connecting part (9) at the top of the rear end of the crossbeam (3). The force-bearing protrusion (8) is in the shape of a right triangle or a right trapezoid, and the hypotenuse is located below the cable (7).

4. The reinforced and stable structure of the multi-head mold processing machine tool according to claim 1, characterized in that, The crossbeam (3) is a skeleton or frame hollow structure, and the bending strengthening structure (6) also includes at least one reinforcing rib (28) provided on the crossbeam (3). The reinforcing rib (28) is located inside the crossbeam (3) and / or on one or more sides of the crossbeam (3), either above, below, left, or right. The reinforcing rib (28) is in the shape of a round tube, a square tube, or a triangular tube, and its extension direction is adapted to the length direction of the crossbeam (3) or the extension direction of the top surface of the crossbeam (3).

5. The reinforced and stable structure of the multi-head mold processing machine tool according to claim 1, characterized in that, At least two sets of first horizontal slide rail slider assemblies (14) are provided between the bottom of the crossbeam (3) and the horizontal section (13) of the L-shaped slide table (11). The first horizontal slide rail slider assembly (14) and the horizontal section (13) are perpendicular to the length direction of the base frame (2). The vertical stabilizing structure (30) is provided between the horizontal section (13) of the L-shaped slide table (11) and the bottom of the crossbeam (3).

6. The reinforced and stable structure of the multi-head mold processing machine tool according to claim 1, characterized in that, The extension direction of the L-shaped slide (11) is perpendicular to the length direction of the base frame (2). The vertical stabilizing structure (30) includes an extended force-bearing part (15) located on the side of the L-shaped slide (11) near the mold placement table (1). The slide rail of the first horizontal slide rail slider assembly (14) located at the bottom of the crossbeam (3) and close to the vertical section (12) is arranged on the horizontal section (13) and the extended force-bearing part (15).

7. The reinforced and stable structure of the multi-head mold processing machine tool according to any one of claims 1-6, characterized in that, The front end of the crossbeam (3) is connected to a cutting head mounting platform (20) and is driven to rise and fall by a lifting drive assembly (21). The lower end of the cutting head mounting platform (20) is provided with a cutting head assembly (22). The cutting head mounting platform (20) is located on the same side of the crossbeam (3) in the same group, and the two cutting head mounting platforms (20) can be close to each other. The blade mounting platform (20) is a vertically extending tubular shape. The blade mounting platform (20) is provided with a vertically penetrating mounting hole (23). The blade assembly (22) is located at the lower end of the mounting hole (23). The connecting line of the blade assembly (22) is pulled out from the upper end of the mounting hole (23). The lower end of the blade mounting platform (20) is provided with a heat dissipation rib (24), and the blade assembly (22) is located inside the heat dissipation rib (24).

8. The reinforced and stable structure of the multi-head mold processing machine tool according to any one of claims 1-6, characterized in that, The length of the base frame (2) is adapted to the length of the mold placement platform (1). A slide rail (25) is provided on the base frame (2) along the length direction, and several sets of crossbeams (3) are arranged on the slide rail (25) along the length direction. A set of base frames (2) is arranged parallel to one side of the mold placement platform (1), or a set of base frames (2) is arranged parallel to both sides of the mold placement platform (1). The base frame (2) has at least one set of crossbeams (3) distributed along the length direction. The lateral movement paths of adjacent sets of crossbeams (3) overlap. Each set of crossbeams (3) has two crossbeams. The lateral movement paths of the two sets of processing components (5) on the two crossbeams (3) are connected or overlap. The base frame (2), crossbeam (3) and mold placement platform (1) are all equipped with lightweight hollow structures (26); The rear end of the crossbeam (3) is located on the outside of the base frame (2), and the rear end of the crossbeam (3) is also provided with a counterweight structure; The mold placement platform (1) includes a plate-shaped placement platform or a cradle-type placement platform.

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