A multi-head machine tool for mold processing

Abstract

This invention belongs to the field of machine tool technology, and specifically relates to a multi-head machine tool for mold processing, which solves the problems of inflexible processing and low efficiency. This multi-head machine tool for mold processing includes a mold placement table, with two sets of base frames arranged parallel to each other on both sides of the mold placement table. At least one set of vertically arranged crossbeams are arranged along the length direction of each base frame. The crossbeams can translate along the length and / or width direction of the base frame. A processing component is mounted at the front end of each crossbeam via a lifting drive structure. The rear end of each crossbeam and the processing component are always located on opposite sides of the base frame. The crossbeams are equipped with a bending-resistant reinforcement structure. This design enables independent movement control of the left and right sets of crossbeams and their processing components, resulting in more flexible processing and improved efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of machine tool, in particular to a multi-head machine tool for die machining. BACKGROUND

[0002] Automobiles increasingly affect and even change our lives, and automobile overall die is indispensable in automobile manufacturing, and the machining of the die depends on the machine tool.

[0003] In the prior art, most die machining machine tools set machining assemblies on a cross beam or a gantry type cross beam, the cross beam can move along the chassis (X direction), the machining assembly can move along the cross beam (Y direction), and the machining assembly can move up and down (Z direction), so as to realize the movement control of the XYZ three-axis directions of the machining assembly and achieve the effect of accurate machining of the corresponding position, and in order to improve the efficiency, a plurality of machining assemblies that can independently move can be arranged on one cross beam.

[0004] However, the cross beam makes the X movement direction of the machining assembly thereon synchronous, and cannot realize the true and complete independent movement control of each machining assembly, so that the flexibility of machining is not conducive, and the machining efficiency is affected. SUMMARY

[0005] The present application aims at the above-mentioned problems existing in the prior art, and provides a multi-head machine tool for die machining.

[0006] In order to realize the purpose of the present application, the following technical solutions can be used:

[0007] A multi-head machine tool for die machining, comprising a die placing table, two groups of chassis are arranged in parallel on both sides of the die placing table, or one group of chassis is arranged in parallel on one side of the die placing table, at least one group of vertical cross beams is arranged on the chassis along the length direction, the cross beam can move in the length direction and / or the width direction of the chassis, the front end of the cross beam is suspended and protrudes towards the die placing table, and the machining assembly is arranged through the lifting driving structure.

[0008] The multi-head 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 the processing components are set on the base frame via crossbeams. The crossbeams can move relative to the base frame along the X and Y axes, and the crossbeams are cantilevered, with the processing components located at the cantilevered end. The base frame preferably has two sets, with the two opposing sets of crossbeams and their processing components located on opposite sides of the mold, which can close relative to each other or staggered. Compared to gantry-type crossbeams, the separate crossbeams make processing more flexible and improve efficiency. Of course, single-side processing can also be used, which is particularly suitable for processing molds with smaller widths. Moreover, for long and large molds, multiple sets of crossbeams and processing components can be set along the length of the mold, with the lateral movement paths of adjacent sets connected end to end, eliminating processing blind spots. Of course, the length of the base frame should also be adapted to the length of the mold. Theoretically, the base frame can be set to an infinite length, and an infinite number of sets of crossbeams and their processing components can be set to adapt to molds of corresponding lengths, meet the processing needs of large and long molds, and ensure processing efficiency. For clarification, the front end of the crossbeam mentioned in this article refers to the end closest to another set of base frames. The length direction of the base frame is set as the X-axis direction, the length direction of the crossbeam is set as the Y-axis direction, and the lifting direction of the cutter head assembly is set as the Z-axis direction.

[0009] In the aforementioned multi-head machine tool for mold processing, the rear end of the crossbeam and the processing components are located on both sides of the base frame, and a cable is provided at the top of the crossbeam. The two ends of the cable are connected to the front end and the rear end or the middle of the crossbeam, respectively.

[0010] To enhance the bending resistance of the beam, a bending reinforcement structure is installed at the top of the beam. While ensuring lightweight design, this structure increases the load-bearing capacity at the front end. Specifically, the bending reinforcement structure uses cables to hold the two ends of the beam together, thereby improving the beam's bending resistance.

[0011] In the aforementioned multi-head machine tool for mold processing, 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.

[0012] The stress-bearing protrusion is in the shape of a right triangle or a right trapezoid, with the hypotenuse located below the cable.

[0013] 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.

[0014] In the aforementioned multi-head machine tool for mold processing, each group of crossbeams has two crossbeams, which 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 group. The crossbeams are located between the vertical sections of the two L-shaped slides.

[0015] 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.

[0016] In the aforementioned multi-head machine tool for mold processing, at least two sets of first transverse slide rail slider assemblies are provided between the bottom of the crossbeam and the horizontal section of the L-shaped slide table. The extension direction of the first transverse slide rail slider assembly and the L-shaped slide table is perpendicular to the length direction of the base frame. The L-shaped slide table has an extended force-bearing part located between the vertical section and the horizontal section on the side near the mold placement table. The slide rail of the first transverse slide rail slider assembly located at the bottom of the crossbeam and near the vertical section is arranged on the horizontal section and the extended force-bearing part.

[0017] The horizontal section of the L-shaped slide table is connected to the crossbeam via a first transverse slide rail slider assembly. The slider has a T-shaped or other shape with a larger outer diameter and a smaller inner diameter. The shape of the slide rail corresponds to the slider, ensuring both smooth sliding and stable horizontal position of the crossbeam. Furthermore, an extended force-bearing section is integrally formed on the inner side of the horizontal section. This extended force-bearing section also has an L-shaped cross-section, providing more space for the slide rail and reducing the possibility of the crossbeam sagging, tilting forward, or even breaking, thus ensuring machining accuracy.

[0018] In the aforementioned multi-head machine tool for mold processing, a second transverse slide rail slider assembly is provided between the outer side of the crossbeam and the vertical section of the L-shaped slide table, which can ensure that the L-shaped slide table and the crossbeam remain relatively stationary during transverse movement.

[0019] 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.

[0020] In the aforementioned multi-head machine tool for mold processing, the base frame has an L-shaped cross-section with the lower side facing inward. The bottom of the inner and outer sides of the L-shaped slide table are slidably connected to the lower and higher sides of the base frame via longitudinal slide rail slider assemblies, respectively. 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, respectively.

[0021] 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.

[0022] In the aforementioned multi-head machine tool for mold processing, the front end of the crossbeam is connected to a cutting head mounting table, which is driven to move up and down by a lifting drive assembly. The lower end of the cutting head mounting table is provided with a cutting head assembly. The cutting head mounting tables are located on the adjacent side of the same group of crossbeams, and the two cutting head mounting tables can be brought close to each other.

[0023] The cutting head mounting platform is a vertically extending tubular shape, and the cutting head mounting platform is provided with a vertically penetrating mounting hole. The cutting head assembly is located at the lower end of the mounting hole, and the connecting wire of the cutting head assembly is pulled out from the upper end of the mounting hole.

[0024] The lower end of the cutter head mounting platform is provided with heat dissipation ribs, and the cutter head assembly is located inside the heat dissipation ribs.

[0025] 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.

[0026] In the aforementioned multi-head machine tool for mold processing, the crossbeam is a skeleton or frame-type hollow structure, and the crossbeam is provided with at least one reinforcing rib. 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, square tube, or 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.

[0027] 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.

[0028] In the multi-head machine tool for mold processing mentioned above, the length of the base frame is adapted to the length of the mold placement table, and a slide rail is provided on the base frame along the length direction, and several sets of crossbeams are arranged on the slide rail along the length direction.

[0029] The lateral movement paths of adjacent groups of crossbeams coincide, and the lateral movement paths of adjacent processing components on each group of crossbeams are connected end to end.

[0030] The processing components are suspended between two sets of base frames, and the front ends of the telescopic paths of the oppositely arranged processing components overlap or connect.

[0031] The base frame, crossbeams, and mold placement platform are all equipped with lightweight hollow structures;

[0032] The rear end of the crossbeam is located on the side of the base frame away from the mold placement table;

[0033] The mold placement platform includes a plate-shaped placement platform or a cradle-type placement platform.

[0034] 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.

[0035] As an optimization, 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 a screw motor or linear actuator, while the lifting drive assembly between the cutter head mounting table and the crossbeam can be implemented using a linear actuator such as a pneumatic cylinder or an electric cylinder.

[0036] Compared with the prior art, the present invention has the following main advantages:

[0037] 1. The processing components are mounted on the base frame via crossbeams. The crossbeams can move relative to the base frame along the X and Y axes. The two sets of crossbeams and their processing components are located on both sides of the mold. They can close relative to each other or staggered. Compared to gantry-type crossbeams, the split crossbeams make processing more flexible and improve efficiency.

[0038] 2. To enhance the bending resistance of the crossbeam, a cable is installed at the top of the crossbeam, which improves the load-bearing capacity at the front end while ensuring lightweight design.

[0039] 3. For long and large molds, multiple sets of crossbeams and processing components can be set along the length of the mold. The transverse movement paths of two adjacent sets are connected end to end, eliminating blind spots in processing, meeting the processing requirements of large and long molds, and ensuring processing efficiency.

[0040] 4. The second transverse slide rail slider assembly located between the vertical section and the side of the crossbeam can provide a certain vertical bending strength. More importantly, the second transverse slide rail slider assembly can pull the crossbeam from the side, ensuring the relative staticity of the crossbeam and the L-shaped slide table in the horizontal direction, avoiding large shaking of the crossbeam due to inertia during the transverse movement, and improving the machining accuracy.

[0041] 5. To achieve lightweighting, the crossbeam is a skeleton or frame type with a hollow structure on the beam. At the same time, to enhance the structural strength, the crossbeam is also equipped with reinforcing ribs. These reinforcing ribs are preferably placed inside the crossbeam and are cast integrally during production. Moreover, the shape of the reinforcing ribs is preferably circular tubular. The circular tubular structure makes the strength uniform in all directions and has better flexural resistance.

[0042] 6. 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 low and high 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. In order to make the drive components of the two crossbeams in the same group staggered, the lateral drive component 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 components. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 provided by the present invention (only one set of crossbeams is shown on each set of base frames);

[0044] Figure 2 This is a top view schematic diagram of Embodiment 1 provided by the present invention;

[0045] Figure 3 This is a schematic diagram of a single-unit base frame and its structure provided by the present invention;

[0046] Figure 4 This is a rear view schematic diagram of a single base frame and its upper structure provided by the present invention;

[0047] Figure 5 This is a schematic diagram of the structure of the L-shaped slide provided by the present invention;

[0048] Figure 6 This is a cross-sectional schematic diagram of the beam provided by the present invention;

[0049] Figure 7 This is a front view schematic diagram of Embodiment 2 provided by the present invention;

[0050] Figure 8 A schematic diagram of the overall structure of Embodiment 3 provided by the present invention.

[0051] In the figure, the components are: mold placement platform 1, base frame 2, crossbeam 3, lifting drive structure 4, processing component 5, cable 7, force-bearing protrusion 8, connecting part 9, telescopic drive component 10, L-shaped slide table 11, vertical section 12, horizontal section 13, first transverse slide rail slider assembly 14, extended force-bearing part 15, longitudinal slide rail slider assembly 17, drive mounting area 18, transverse drive component 19, cutter head mounting platform 20, lifting drive component 21, cutter head assembly 22, mounting hole 23, heat dissipation rib 24, slide rail 25, second transverse slide rail slider assembly 27, and reinforcing rib 28. Detailed Implementation

[0052] 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.

[0053] Example 1

[0054] Specific implementation examples Figures 1-6 As shown, the multi-head machine tool used for mold processing includes a mold placement table 1, which includes a plate-shaped placement table. Two sets of base frames 2 are arranged parallel to each other on both sides of the mold placement table 1. A set of vertically arranged crossbeams 3 are arranged on the base frames 2 along the length direction. The crossbeams 3 can be translated along the length direction and / or width direction of the base frames 2. The front end of the crossbeams 3 is suspended and protrudes towards the mold placement table 1, and a processing component 5 is provided through the lifting drive structure 4.

[0055] Specifically, the multi-head 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 processing component 5 is set on the base frame 2 via a crossbeam 3. The crossbeam 3 can move relative to the base frame 2 along the X and Y axes, and the crossbeam 3 is cantilevered. The processing component 5 is located at the cantilever end. The base frame 2 preferably has two sets, with the two opposing sets of crossbeams 3 and their processing components 5 located on opposite sides of the mold, which can close relative to each other or staggered. Compared with gantry-type crossbeams, the separate crossbeams 3 make processing more flexible and improve efficiency. Moreover, for long and large molds, multiple sets of crossbeams 3 and processing components 5 can be set along the length of the mold, with the lateral movement paths of adjacent sets connected end to end, eliminating processing blind spots. Of course, the length of the base frame 2 should also be adapted to the length of the mold. Theoretically, the base frame 2 can be set to be infinitely long, and an infinite number of sets of crossbeams 3 and their processing components 5 can be set to adapt to molds of corresponding lengths, meet the processing needs of large and long molds, and ensure processing efficiency.

[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, the rear end of the crossbeam 3 and the processing component 5 are located on both sides of the base frame 2. The top of the crossbeam 3 is provided with a cable 7, and the two ends of the cable 7 are connected to the front end and the rear end or the middle of the crossbeam 3, respectively. The top of the front end of the crossbeam 3 is provided with a stress-bearing protrusion 8. One end of the cable 7 is connected to the connecting part 9 on the stress-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 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.

[0057] Specifically, to enhance the bending resistance of the crossbeam 3, a bending reinforcement structure is provided at the top of the crossbeam 3. While ensuring lightweight design, this structure improves the load-bearing capacity at the front end. The bending reinforcement structure is specifically designed by using cables 7 to hold both ends of the crossbeam 3 together, thereby improving its bending resistance. A stress-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 cables 7. The cables 7 are 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 stress strength and ensuring its bending resistance.

[0058] like Figures 1-6As shown, 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 extension directions of the first horizontal slide rail slider assemblies 14 and the L-shaped slides 11 are perpendicular to the length direction of the base frame 2. The L-shaped slides 11 has an extended force-bearing part 15 located between the vertical section 12 and the horizontal section 13 on the side near the mold placement platform 1. The slide rails of the first horizontal slide rail slider assembly 14 located at the bottom of the crossbeams 3 and near the vertical section 12 are arranged on the horizontal section 13 and the extended force-bearing part 15.

[0059] 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 transverse slide rail slider assembly 14. The slider has a T-shaped or other shape with a larger outer diameter and a smaller inner diameter. The shape of the slide rail corresponds to the slider, ensuring both smooth sliding and stable horizontal position of the crossbeam 3. Furthermore, 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 slide rail mounting space, reducing the possibility of the crossbeam 3 tilting forward or even breaking, and improving machining accuracy.

[0060] As a further optimization, a second horizontal slide rail slider assembly 27 is provided between the outer side of the crossbeam 3 and the vertical section 12 of the L-shaped slide table 11, which can ensure that the L-shaped slide table 11 and the crossbeam 3 remain relatively stationary during horizontal movement.

[0061] Specifically, the openings of the two L-shaped slides 11 are opposite 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 lateral movement, and improving the processing accuracy.

[0062] like Figure 1 , Figure 3 , Figure 6As shown, 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. The front end of the crossbeam 3 is connected to a cutting head mounting platform 20, which is driven to rise and fall by the 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 platforms 20 are 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 cutting head mounting platform 20 is a vertically extending tube, and a vertical through mounting hole 23 is provided on the cutting head mounting platform 20. The cutting head assembly 22 is located at the lower end of the mounting hole 23, and the connecting line of the cutting head assembly 22 is pulled out from the upper end of the mounting hole 23. The lower end of the cutting head mounting platform 20 is provided with a heat dissipation rib 24, and the cutting head assembly 22 is located inside the heat dissipation rib 24.

[0063] Specifically, the inner side of the base frame 2 is lower than the outer side. 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. A drive mounting area 18 is formed at the middle of the top of the base frame 2 due to the height difference on both sides. This mounting area can be used to install the transverse drive assembly 19. To allow the drive assemblies of the two crossbeams 3 in the same group to be staggered, the transverse drive assembly 19 of one crossbeam 3 is located in the drive mounting area 18, and the other is preferably located on the inner side of the L-shaped slide table 11, avoiding overlap between the two sets of drive assemblies and providing conditions for the transverse movement paths of the crossbeams 3 to be connected end-to-end or intersecting. The cutter head mounting table 20 is located on the adjacent side of the two crossbeams 3 in the same group. When the crossbeams 3 are closed, the two cutter head mounting tables 20 can be as close as possible, even touching, which helps to eliminate blind spots in machining. The mounting holes 23 on the cutter head mounting table 20 are vertically penetrating, accommodating cutter head assemblies 22 of different lengths. The connecting wires of the cutter head assemblies 22 can also be pulled out from the upper end of the mounting holes 23, facilitating wiring. In addition, the heat dissipation ribs 24 at the bottom of the cutter head mounting platform 20 are located on the outside of the cutter head assembly 22, which can increase the contact area with air and facilitate heat dissipation.

[0064] As a further optimization, the crossbeam 3 is a skeleton or frame-type hollow structure. The crossbeam 3 is provided with two reinforcing ribs 28. The reinforcing ribs 28 are located inside the crossbeam 3. The reinforcing ribs 28 are in the shape of a round tube, and their extension direction is adapted to the length direction of the crossbeam 3 or the extension direction of the top surface of the crossbeam 3.

[0065] Specifically, in order to achieve lightweighting, the beam body of the crossbeam 3 is provided with a hollow structure. At the same time, in order to enhance the structural strength, the crossbeam 3 is integrally cast with reinforcing ribs 28 during processing. Moreover, the shape of the reinforcing ribs 28 is circular tubular, which makes the strength uniform in all directions and has better bending resistance.

[0066] As an optimization, 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. The lateral movement paths of adjacent sets of crossbeams 3 coincide, and the lateral movement paths of adjacent processing components 5 on each set of crossbeams 3 are connected end to end. The processing components 5 are suspended between the two sets of base frames 2, and the front ends of the extension paths of the oppositely arranged processing components 5 coincide or connect. The base frame 2, crossbeams 3 and mold placement platform 1 are all provided with lightweight hollow structures. The rear end of the crossbeam 3 is located on the side of the base frame 2 away from the mold placement platform 1.

[0067] 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.

[0068] 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.

[0069] Example 2

[0070] 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.

[0071] Specific implementation examples Figure 7 As shown, the mold placement platform 1 has only one set of base frames 2 arranged in parallel on one side, and the base frames 2 are equipped with crossbeams 3.

[0072] Example 3

[0073] The working principle of this embodiment is basically the same as that of embodiment 1, except that the mold placement platform 1 is different.

[0074] Specific implementation examples Figure 8 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.

[0075] 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 multi-head machine tool for mold processing, comprising a mold placement table (1), characterized in that, The mold placement platform (1) is provided with two sets of base frames (2) arranged in parallel on both sides, or the mold placement platform is provided with one set of base frames (2) arranged in parallel on one side. The base frames (2) are provided with at least one set of vertically arranged crossbeams (3) arranged along the length direction. The crossbeams (3) can be translated along the length direction and / or width direction of the base frames (2). The front end of the crossbeams (3) is suspended and protrudes towards the mold placement platform (1), and a processing component (5) is provided through the lifting drive structure (4). Each group of crossbeams (3) has two crossbeams (3), which are respectively set on L-shaped slides (11). The L-shaped slides (11) are slidably connected to the base frame (2) and can be disengaged and slid relative to another L-shaped slide (11) in the same group. The crossbeams (3) are located between the vertical sections (12) of the two L-shaped slides (11). The base frame (2) has an L-shaped cross section 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 by 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).

2. The multi-head machine tool for mold processing according to claim 1, characterized in that, The rear end of the crossbeam (3) and the processing component (5) are located on both sides of the base frame (2). The top of the crossbeam (3) is provided with a cable (7), and the two ends of the cable (7) are connected to the front end and the rear end or the middle of the crossbeam (3) respectively.

3. The multi-head machine tool for mold processing 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 multi-head machine tool for mold processing 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 extension direction of the first horizontal slide rail slider assembly (14) and the L-shaped slide table (11) is perpendicular to the length direction of the base frame (2). The L-shaped slide table (11) has an extended force-bearing part (15) located between the vertical section (12) and the horizontal section (13) on one side 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).

5. The multi-head machine tool for mold processing according to claim 1, characterized in that, A second horizontal slide rail slider assembly (27) is provided between the outer side of the crossbeam (3) and the vertical section (12) of the L-shaped slide table (11), which can ensure that the L-shaped slide table (11) and the crossbeam (3) remain relatively stationary during horizontal movement.

6. The multi-head machine tool for mold processing according to claim 1, 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).

7. The multi-head machine tool for mold processing according to claim 1, characterized in that, The crossbeam (3) is a skeleton or frame hollow structure. The crossbeam (3) is provided with at least one reinforcing rib (28). The reinforcing rib (28) is located inside the crossbeam (3) and / or on one or more sides of the crossbeam (3), and 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).

8. The multi-head machine tool for mold processing according to any one of claims 1-7, 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. The transverse paths of adjacent beams (3) overlap, and the transverse paths of adjacent processing components (5) on each beam (3) are connected end to end. The processing component (5) is suspended between two sets of base frames (2), and the front ends of the telescopic paths of the processing components (5) arranged opposite to each other overlap or connect. 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 side of the base frame (2) away from the mold placement platform (1); The mold placement platform (1) includes a plate-shaped placement platform or a cradle-type placement platform.

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