Gantry type workbench of numerical control machine tool
By designing components such as guide rails, rail bases, horizontal steel bodies, table plates, slots, I-beams, vertical holes, and T-shaped rods, the problem of unstable bolt connections on CNC machine tool gantry worktables was solved, resulting in a more stable worktable structure and enhancing the stability and buffering performance of bolt connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-04-14
AI Technical Summary
In the operation of existing CNC machine tool gantry-type worktables, the direct bolt connection between the first and second worktables causes the bolts to be subjected to tensile stress, affecting stability.
The design incorporates guide rails, rail bases, horizontal steel bodies, platform plates, slots, I-beams, vertical holes, T-bars, recessed holes, springs, and coils. It connects to the I-beams via slots and is secured with bolts. The T-bars and recessed holes provide cushioning, distribute bolt pressure, and enhance stability.
It improves the stability of the workbench, reduces the risk of misalignment between the tabletop and the horizontal steel body, enhances the stability of the bolted connection, and ensures that the workbench operates more stably.
Smart Images

Figure CN224115618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tool worktable technology, specifically to a CNC machine tool gantry worktable. Background Technology
[0002] Currently, gantry milling machines are machining equipment integrating advanced mechanical, electrical, and hydraulic technologies. They are suitable for semi-finishing and finishing in industries such as heavy machinery, locomotives, power generation, machine tools, automobiles, and molds, and can also be used for roughing. Patent number CN202321333492.7 discloses a CNC gantry milling machine with an ultra-wide worktable, capable of processing ultra-large workpieces. The number of worktables connected side-by-side is set according to different workpiece specifications. The worktables can be combined into one unit or used separately, offering flexibility. However, in the use of gantry-type worktables on CNC machine tools, the direct bolt connection between the first and second worktables means that when the worktable is loaded with workpieces, the bolts must directly bear the tensile pressure from the two sets of worktables, which can easily affect the stability of the bolts. Therefore, we propose a gantry-type worktable for CNC machine tools. Utility Model Content
[0003] To address the problems in the existing technology, this utility model provides a gantry-type worktable for CNC machine tools.
[0004] The technical solution adopted by this utility model to solve its technical problem is a gantry-type worktable for a CNC machine tool, including a base. The top surface of the base is equipped with an adjustable guide rail, and there are multiple sets of guide rails. The outer periphery of the guide rail is slidably installed with a support rail seat. Between two sets of the rail seats, there are multiple sets of horizontal steel bodies for auxiliary support. The top surface of the horizontal steel body is bolted with a table plate, and there are two sets of table plates. The outer two sides of the table plate are provided with slots, and there are multiple sets of I-beams that engage with the slots between the multiple sets of horizontal steel bodies.
[0005] The top surface of the horizontal steel body is provided with vertical holes for adjustment, and there are multiple sets of vertical holes. A T-shaped rod for limiting is slidably installed in the vertical hole. The bottom surface of the platform is provided with concave holes that fit with the T-shaped rod, and there are multiple sets of concave holes. A spring for pushing the T-shaped rod to move is assembled between the T-shaped rod and the vertical hole. A ring for limiting is assembled on the outer circumferential surface of the T-shaped rod.
[0006] By adopting the above technical solution, during the use of the gantry-type worktable of CNC machine tools, the slots on the outer side of the table plate can easily fit with the I-beams, and bolts can be used to connect and fix the I-beams and the table plate together. At the same time, multiple sets of I-beams can be arranged longitudinally between multiple sets of horizontal steel bodies, and bolts can be used to fasten the horizontal steel bodies, I-beams, and table plate together. This allows multiple sets of horizontal steel bodies and I-beams to provide auxiliary support for the interlocking table plate. During subsequent work, the I-beams and horizontal steel bodies can share the pressure borne by the bolts, making the worktable operate more stably. Moreover, the assembled worktable has stronger stability and is easier to use.
[0007] When the platform connects the I-beam and the horizontal steel body, one end of the T-shaped rod at the top of the horizontal steel body aligns with a pre-drilled recess at the bottom of the platform, facilitating the positioning of the horizontal steel body and the platform. Simultaneously, the outer ring of the T-shaped rod abuts against the platform after one end of the T-shaped rod enters the recess. At this point, the T-shaped rod descends and, under the elastic support of the spring in the vertical hole, provides cushioning between the platform and the horizontal steel body. Thus, the T-shaped rod not only assists in the connection between the platform and the horizontal steel body but also provides a certain degree of cushioning, reducing misalignment between them. This also helps distribute the pressure on the longitudinal locking bolts, allowing for a more stable connection between the platform and the horizontal steel body and ensuring more stable use of the platform in the future.
[0008] Specifically, the top surface of the horizontal steel body is fitted with a cover plate for sealing the vertical hole, and the cover plate is inserted and connected to the T-shaped rod.
[0009] By adopting the above technical solution, the cover plate can conveniently seal the vertical holes on the surface of the horizontal steel body and interlock and slide with the T-shaped rod, thereby facilitating the limiting of the sliding of the T-shaped rod in the vertical hole, reducing the possibility of separation between the T-shaped rod and the vertical hole. At the same time, the cover plate is easy to disassemble and install, making it convenient to disassemble and replace the T-shaped rod.
[0010] Specifically, the top and bottom surfaces of the ring are both bonded with protective rubber rings, and the ring fits snugly with the cover plate.
[0011] By adopting the above technical solution, the rubber ring has good elasticity, which facilitates protection when the ring body and the cover plate fit together, and when the ring body and the platform plate come into contact with each other, thereby reducing the situation of scratches and damage caused by friction between the ring body and the platform plate or the cover plate.
[0012] Specifically, the outer peripheral surface of the platform is provided with an L-shaped groove, and there are multiple sets of L-shaped grooves. Two sets of platform plates are connected by screws with U-shaped blocks that fit into the L-shaped grooves.
[0013] By adopting the above technical solution, the U-shaped block can easily fit into the L-shaped groove between the two sets of platforms and can be fastened with screws, so that the platforms spliced together can operate more stably.
[0014] Specifically, the I-beam is bolted to the platform.
[0015] By adopting the above technical solution, after the slots on the outside of the I-beam and the platform are engaged and connected, bolts can be used to fasten the I-beam and the platform, so that the I-beam and the platform can form a whole, and the platform can be used more stably in the future.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. The technical solution of this application, through the design of guide rails, rail bases, horizontal steel bodies, table plates, slots, and I-beams, allows for easy engagement between the slots on the outer side of the table plate and the I-beams during the use of a gantry-type worktable on a CNC machine tool. Bolts are used to connect and fix the I-beams to the table plate. Simultaneously, multiple sets of I-beams are conveniently arranged longitudinally between multiple sets of horizontal steel bodies, and bolts are used to fasten the horizontal steel bodies, I-beams, and table plates. This allows the multiple sets of horizontal steel bodies and I-beams to provide auxiliary support for the interconnected table plate. During subsequent operation, the I-beams and horizontal steel bodies can share the pressure borne by the bolts, resulting in more stable operation of the worktable. Furthermore, the assembled worktable has stronger stability and is easier to use.
[0018] 2. The technical solution of this application, through the design of vertical holes, T-shaped rods, recessed holes, springs, and coils, allows the platform to connect with the I-beam and the horizontal steel body when the platform connects. One end of the T-shaped rod at the top of the horizontal steel body can align with the recessed hole at the bottom of the platform, facilitating the limiting of the horizontal steel body and the platform. Simultaneously, the coil around the outer periphery of the T-shaped rod abuts against the platform after one end of the T-shaped rod enters the recessed hole. At this time, the T-shaped rod will descend and, under the elastic support of the spring in the vertical hole, facilitates buffering between the platform and the horizontal steel body. Thus, the T-shaped rod not only assists in the connection between the platform and the horizontal steel body but also provides a certain buffering performance, reducing misalignment between the platform and the horizontal steel body. This facilitates the distribution of pressure on the longitudinal locking bolts, enabling the platform to connect more stably with the horizontal steel body and ensuring more stable use of the platform in the future. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is an isometric view of the present invention;
[0021] Figure 2 This is a schematic diagram of the horizontal steel body structure of this utility model;
[0022] Figure 3 This is a planar schematic diagram of the connection structure between the T-shaped rod and the concave hole of this utility model;
[0023] Figure 4 This is a partial structural diagram of point A between the platform and the horizontal steel body of this utility model;
[0024] In the diagram: 1. Base; 2. Guide rail; 3. Rail seat; 4. Horizontal steel body; 5. Platform; 6. Slot; 7. I-beam; 8. Vertical hole; 9. Cover plate; 10. T-shaped rod; 11. Recessed hole; 12. Spring; 13. Ring body; 14. Rubber ring; 15. L-shaped groove; 16. U-shaped block. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] Please see Figure 1-4 This utility model provides a technical solution: a gantry-type worktable for a CNC machine tool, including a base 1. The top surface of the base 1 is fitted with adjustable guide rails 2, and there are multiple sets of guide rails 2. Support rail seats 3 are slidably installed on the outer periphery of the guide rails 2. Horizontal steel bodies 4 for auxiliary support are fitted between two sets of support rail seats 3, and there are multiple sets of horizontal steel bodies 4. A table plate 5 is bolted to the top surface of the horizontal steel body 4, and there are two sets of table plates 5. Slots 6 are provided on both sides of the outer periphery of the table plate 5, and multiple sets of horizontal steel bodies... The body 4 is fitted with an I-beam 7 that engages with the slot 6, and there are multiple sets of I-beams 7; the top surface of the horizontal steel body 4 is provided with a vertical hole 8 for adjustment, and there are multiple sets of vertical holes 8; a T-shaped rod 10 for limiting is slidably installed in the vertical hole 8; the bottom surface of the platform 5 is provided with a concave hole 11 that fits with the T-shaped rod 10, and there are multiple sets of concave holes 11; a spring 12 for pushing the T-shaped rod 10 to move is fitted between the T-shaped rod 10 and the vertical hole 8; a ring body 13 for limiting is fitted on the outer circumferential surface of the T-shaped rod 10.
[0027] When using the gantry-type worktable of a CNC machine tool, the slots 6 on the outer side of the table 5 can easily fit together with the I-beams 7, and bolts can be used to connect and fix the I-beams 7 and the table 5 together. At the same time, multiple sets of I-beams 7 can be arranged longitudinally between multiple sets of horizontal steel bodies 4, and bolts can be used to fasten the horizontal steel bodies 4, I-beams 7 and table 5 together. This allows the multiple sets of horizontal steel bodies 4 and I-beams 7 to provide auxiliary support for the spliced table 5. During subsequent work, the I-beams 7 and horizontal steel bodies 4 can share the pressure borne by the bolts, making the worktable operate more stably. The assembled worktable is more stable and easier to use.
[0028] When the platform 5 connects the I-beam 7 and the horizontal steel body 4, one end of the T-shaped rod 10 at the top of the horizontal steel body 4 can align with the pre-set recess 11 at the bottom of the platform 5, facilitating the positioning of the horizontal steel body 4 and the platform 5. At the same time, the outer ring 13 of the T-shaped rod 10 will abut against the platform 5 after one end of the T-shaped rod 10 enters the recess 11. At this time, the T-shaped rod 10 will descend and, under the elastic support of the spring 12 in the vertical hole 8, facilitate buffering between the platform 5 and the horizontal steel body 4. Thus, the T-shaped rod 10 can not only assist in the connection between the platform 5 and the horizontal steel body 4, but also provide a certain buffering performance, and reduce the misalignment between the platform 5 and the horizontal steel body 4. This facilitates the distribution of pressure on the longitudinal locking bolts, allowing the platform 5 to connect more stably with the horizontal steel body 4, and enabling the platform 5 to be used more stably in the future.
[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the top surface of the horizontal steel body 4 is fitted with a cover plate 9 for sealing the vertical hole 8, and the cover plate 9 is inserted and connected to the T-shaped rod 10.
[0030] In use, the cover plate 9 can conveniently seal the vertical hole 8 on the surface of the horizontal steel body 4 and be inserted into and slidably connected with the T-shaped rod 10, thereby facilitating the limiting of the sliding of the T-shaped rod 10 in the vertical hole 8, reducing the possibility of separation between the T-shaped rod 10 and the vertical hole 8. At the same time, the cover plate 9 is easy to disassemble and replace, making it convenient to remove and replace the T-shaped rod 10.
[0031] like Figure 2 and Figure 3 As shown, the top and bottom surfaces of the ring body 13 are both bonded with protective rubber rings 14, and the ring body 13 fits into the cover plate 9.
[0032] When in use, the rubber ring 14 has good elasticity, which facilitates protection when the ring body 13 and the cover plate 9 fit together, and when the ring body 13 and the platform 5 abut together, thereby reducing the situation of scratches and damage caused by friction between the ring body 13 and the platform 5 or the cover plate 9.
[0033] like Figure 1 As shown, an L-shaped groove 15 is provided on the outer peripheral surface of the platform 5, and there are multiple sets of L-shaped grooves 15. A U-shaped block 16 that fits into the L-shaped groove 15 is assembled between two sets of platform 5 by screws.
[0034] When in use, the U-shaped block 16 can easily fit into the L-shaped groove 15 between the two sets of platform 5 and can be fastened with screws, so that the platform 5 spliced together can operate more stably.
[0035] like Figure 1 As shown, the I-beam 7 is bolted to the platform 5.
[0036] When in use, after the slots 6 on the outside of the I-beam 7 and the platform 5 are engaged and connected, bolts can be used to fasten the I-beam 7 and the platform 5 together, so that the I-beam 7 and the platform 5 can form a whole, and the platform 5 can be used more stably in the future.
[0037] The working principle and usage process of this utility model are as follows: In use, first, install the corresponding structural components in suitable positions. During the use of the gantry-type worktable of the CNC machine tool, the slot 6 on the outer side of the table plate 5 easily engages with the I-beam 7, and bolts can be used to connect and fix the I-beam 7 and the table plate 5 together. Simultaneously, multiple sets of I-beams 7 are conveniently arranged longitudinally between multiple sets of transverse steel bodies 4, and bolts are used to fasten the transverse steel bodies 4, I-beams 7, and table plate 5. This allows the multiple sets of transverse steel bodies 4 and I-beams 7 to provide auxiliary support for the interconnected table plate 5. During subsequent work, the I-beams 7 and transverse steel bodies 4 can share the pressure borne by the bolts, making the worktable operate more stably. Furthermore, the assembled worktable has stronger stability and is easier to use. Simultaneously, when the table plate 5 drives the I-beams 7 and transverse steel bodies 4 to connect, the T-shaped rod 10 at the top of the transverse steel body 4... The end can mate with the pre-set recessed hole 11 at the bottom of the table 5, which facilitates the limiting of the horizontal steel body 4 and the table 5. At the same time, the outer ring 13 of the T-shaped rod 10 will abut against the table 5 after one end of the T-shaped rod 10 enters the recessed hole 11. At this time, the T-shaped rod 10 will descend and, under the elastic support of the spring 12 in the vertical hole 8, facilitate the buffering between the table 5 and the horizontal steel body 4. Thus, the T-shaped rod 10 can not only assist in the connection between the table 5 and the horizontal steel body 4, but also provide a certain buffering performance, and reduce the misalignment between the table 5 and the horizontal steel body 4. It can also distribute the pressure on the longitudinal locking bolt, so that the table 5 can be connected to the horizontal steel body 4 more stably, and the table 5 can be used more stably in the future. Therefore, the gantry table of the CNC machine tool can be used more stably after being spliced together.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A gantry-type worktable for a CNC machine tool, characterized in that, Includes a base (1), the top surface of which is fitted with an adjustable guide rail (2), and there are multiple sets of guide rails (2). The outer periphery of the guide rail (2) is slidably fitted with a support rail seat (3). Between the two sets of rail seats (3), there is a horizontal steel body (4) for auxiliary support, and there are multiple sets of horizontal steel bodies (4). The top surface of the horizontal steel body (4) is fitted with a platform (5) by bolts, and there are two sets of platform (5). The outer two sides of the platform (5) are provided with slots (6), and there are multiple sets of I-beams (7) that engage with the slots (6) between the multiple sets of horizontal steel bodies (4). The top surface of the horizontal steel body (4) is provided with vertical holes (8) for adjustment, and there are multiple sets of vertical holes (8). A T-shaped rod (10) for limiting is slidably installed in the vertical hole (8). The bottom surface of the platform (5) is provided with concave holes (11) that fit with the T-shaped rod (10), and there are multiple sets of concave holes (11). A spring (12) for pushing the T-shaped rod (10) to move is assembled between the T-shaped rod (10) and the vertical hole (8). A ring body (13) for limiting is assembled on the outer peripheral surface of the T-shaped rod (10).
2. The gantry-type worktable for a CNC machine tool according to claim 1, characterized in that, The top surface of the horizontal steel body (4) is fitted with a cover plate (9) for sealing the vertical hole (8), and the cover plate (9) is inserted into the T-shaped rod (10).
3. A gantry-type worktable for a CNC machine tool according to claim 1, characterized in that, The top and bottom surfaces of the ring (13) are both bonded with protective rubber rings (14), and the ring (13) fits into the cover plate (9).
4. A gantry-type worktable for a CNC machine tool according to claim 1, characterized in that, The outer peripheral surface of the platform (5) is provided with an L-shaped groove (15), and there are multiple sets of L-shaped grooves (15). Two sets of platform (5) are connected by screws to form a U-shaped block (16) that fits the L-shaped groove (15).
5. A gantry-type worktable for a CNC machine tool according to claim 1, characterized in that, The I-beam (7) is bolted to the platform (5).
Citation Information
Patent Citations
Numerical control gantry boring and milling machine tool with ultra-wide workbench
CN219582171U