Numerical control gantry six-guide rail square ram mechanism
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG RUNMING INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-24
AI Technical Summary
Existing square slides are prone to deformation and have poor heat dissipation in gantry machining centers, resulting in short service life and reduced precision.
A CNC gantry six-guide rail square slide mechanism was designed. The anti-torsion ability is increased by setting slide grooves, guide rails, protrusions and grooves, and the heat dissipation effect is improved by setting gaps and heat dissipation vents between the column and the slide.
This improved the service life and machining accuracy of the slide, reduced maintenance costs, and enhanced the practicality and heat dissipation capacity of the device.
Smart Images

Figure CN224543786U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC gantry square slide ram, and more specifically, to a CNC gantry six-guide rail square slide ram mechanism. Background Technology
[0002] A gantry machining center is a machining center where the Z-axis of the spindle is perpendicular to the worktable. Its overall structure is a large machining center with a portal frame frame consisting of double columns and a top beam, with guide rails in the middle of the double columns. It is particularly suitable for machining large and complex-shaped workpieces. The worktable of a gantry machining center is generally rectangular. The large castings such as the worktable, bed, columns, guide rails, and ram are made of cast iron or welded parts. The internal cavities of the castings have a honeycomb composite arrangement structure, an advanced design, and all undergo aging and secondary tempering treatments to eliminate residual internal stress, stabilize the material, and ensure stable workpiece machining accuracy and machine tool life. In the use of gantry machining centers, T-shaped and square rams are mostly used, with square rams being more commonly used when machining large workpieces.
[0003] Most existing square slides use the four corners as wedges to increase the torsional strength between the slide and the column. However, the slide is still prone to deformation after long-term use. Furthermore, the tight fit between the column and the slide results in poor heat dissipation for the workpiece inside the slide, making the workpiece very easy to damage after prolonged use. Therefore, in order to solve the above problems, a CNC gantry six-guide rail square slide mechanism is very necessary. Utility Model Content
[0004] The main technical problem solved by this utility model is to provide a CNC gantry six-guide rail square slide ram mechanism, which can solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, according to one aspect of this utility model, more specifically, a CNC gantry six-guide rail square ram mechanism includes a column, a slide rail connecting device fixedly connected to one side of the column, a slide rail slidably connected to one side of the slide rail connecting device, a ram slidably connected inside the column, a power box bolted to the top of the ram, power mechanisms provided on both sides of the bottom of the power box, six guide rails fixedly installed on the outside of the ram, a fixed plate fixedly connected to the bottom of the ram, a clamp fixedly connected to the bottom of the fixed plate, and an upper fixed seat and a lower fixed seat fixedly installed above and below the column, respectively, with sliding grooves opened inside the upper and lower fixed seats.
[0006] Furthermore, the power mechanism includes telescopic devices fixedly connected to both sides of the bottom of the power box. The outer cylinder of the telescopic device is fixedly disposed between the upper fixed seat and the lower fixed seat. A motor is fixedly disposed on the top of the power box. The telescopic device is connected to the motor through a transmission. Multiple second connection ports are fixedly disposed on the bottom of the power box.
[0007] Furthermore, both the upper and lower fixed seats are tightly fitted to the slide block, and all six guide rails are slidably connected inside the slide groove. The column is fixedly provided with multiple heat dissipation holes on three sides away from the slide rail connection device, and there is a certain gap between the inner side of the column and the slide block at the heat dissipation holes.
[0008] Furthermore, the inner sides of the column, the upper fixing seat, and the lower fixing seat are fixedly provided with protrusions near the slide rail connection device, and a groove is fixedly provided on one side of the slide block, with the protrusions and the grooves fitting tightly together.
[0009] Furthermore, a top cover is fixedly installed on one side of the slide block, and a heat dissipation vent is opened inside the top cover. The heat dissipation hole on the outside of the column is set as a large hole at the heat dissipation vent.
[0010] Furthermore, all six guide rails, except for the top surface and both sides of the top surface, are provided with rough surfaces on their outer sides.
[0011] Furthermore, the fixed plate is provided with a plurality of first connection ports evenly arranged inside, and the fixed plate is fixedly connected to the slide block through the plurality of first connection ports.
[0012] The beneficial effects of this utility model of a CNC gantry six-guide rail square slide ram mechanism are as follows: By setting up grooves, guide rails, protrusions, and grooves, the ram is slidably connected to the column, upper fixed seat, and lower fixed seat during use. This increases the torsional resistance of the connection between the ram and the column during processing, greatly increasing the service life of the ram and the accuracy of the machining center after long-term use, thus improving the practicality of the device. By setting a top cover and heat dissipation vents, and by creating a gap between the inside of the column and the slide, the heat generated by the workpiece inside the slide can be dissipated through the heat dissipation vents into the gap between the inside of the column and the slide during use, and finally overflow from multiple heat dissipation holes. This greatly improves the heat dissipation capacity of the device, allowing the internal workpiece to be used for a long time and reducing maintenance costs. Attached Figure Description
[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.
[0014] Figure 1 This is a schematic diagram of the overall structure of a CNC gantry six-guide rail square slide block mechanism according to the present invention; Figure 2 This is a schematic diagram of the fixed plate structure of a six-guide-rail square slide block mechanism for CNC gantry cranes according to this utility model; Figure 3 This is a schematic diagram of the column structure of a six-guide-rail square slide ram mechanism for CNC gantry cranes according to this utility model; Figure 4 This is a schematic diagram of the slide structure of a six-guide-rail square slide mechanism for CNC gantry cranes according to this utility model.
[0015] In the diagram: 1. Column; 101. Upper fixed seat; 102. Lower fixed seat; 103. Slide groove; 104. Protrusion; 2. Slide rail connecting device; 3. Slide block; 301. Top cover; 302. Guide rail; 303. Fixed plate; 304. Clamp; 305. Groove; 306. Heat dissipation vent; 307. First connection port; 4. Power box; 401. Telescopic device; 402. Motor; 403. Second connection port; 5. Slide rail. Detailed Implementation
[0016] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.
[0017] like Figure 1-4 As shown, according to one aspect of this utility model, a CNC gantry six-guide rail square ram mechanism is provided, including a column 1, a slide rail connecting device 2 fixedly connected to one side of the column 1, a slide rail 5 slidably connected to one side of the slide rail connecting device 2, a ram 3 slidably connected inside the column 1, a power box 4 bolted to the top of the ram 3, power mechanisms provided on both sides of the bottom of the power box 4, six guide rails 302 fixedly installed on the outside of the ram 3, a fixed plate 303 fixedly connected to the bottom of the ram 3, a clamp 304 fixedly connected to the bottom of the fixed plate 303, and upper fixed seats 1 fixedly installed on the top and bottom of the column 1 respectively. 01 and the lower fixed seat 102, both the upper fixed seat 101 and the lower fixed seat 102 are provided with sliding grooves 103. By setting the sliding grooves 103, guide rails 302, protrusions 104 and grooves 305, the slide block 3 is slidably connected to the column 1 and the upper fixed seat 101 and the lower fixed seat 102 through the sliding grooves 103, guide rails 302, protrusions 104 and grooves 305 during use. This makes the anti-torsion ability of the connection between the slide block 3 and the column 1 increased by multiple guide rails 302 during processing, which greatly increases the service life of the slide block 3 and the accuracy of the machining center after long-term use.
[0018] In this embodiment, the power mechanism includes telescopic devices 401 fixedly connected to both sides of the bottom of the power box 4. The bottom outer cylinder of the telescopic device 401 is fixedly disposed between the upper fixed seat 101 and the lower fixed seat 102. A motor 402 is fixedly disposed on the top of the power box 4. The telescopic device 401 and the motor 402 are connected by transmission. A plurality of second connection ports 403 are fixedly disposed on the bottom of the power box 4. By setting the power mechanism, the slide ram 3 can move up and down.
[0019] In this embodiment, both the upper fixed seat 101 and the lower fixed seat 102 are tightly fitted to the slide block 3, and the six guide rails 302 are slidably connected inside the slide groove 103. The column 1 is fixedly provided with multiple heat dissipation holes on three sides away from the slide rail connecting device 2. There is a certain gap between the inner side of the column 1 and the slide block 3 at the heat dissipation holes. By setting the top cover 301 and the heat dissipation port 306 and setting the gap between the inside of the column 1 and the slide block 3, the heat generated by the workpiece inside the slide block 3 can be dissipated through the heat dissipation port 306 into the gap between the inside of the column 1 and the slide block 3 during use, and finally overflow from the multiple heat dissipation holes, which greatly improves the heat dissipation capacity of the device, allowing the internal workpiece to be used for a long time and reducing maintenance costs.
[0020] In this embodiment, a protrusion 104 is fixedly provided on the inner side of the column 1, the upper fixing seat 101 and the lower fixing seat 102 near the slide rail connecting device 2, and a groove 305 is fixedly provided on one side of the slide block 3. The protrusion 104 and the groove 305 fit tightly together. By setting the protrusion 104 and the groove 305, the connection between the slide block 3 and the column 1 is more stable.
[0021] In this embodiment, a top cover 301 is fixedly provided on one side of the slide ram 3. A heat dissipation vent 306 is provided inside the top cover 301. The heat dissipation hole on the outside of the column 1 is set as a large hole at the heat dissipation vent 306. By setting the large hole, the heat generated inside the slide ram 3 can be discharged more quickly during high-intensity work, and the production cost is reduced.
[0022] In this embodiment, the outer surfaces of the six guide rails 302, except for the top surface and both sides of the top surface, are provided with rough surfaces. By providing rough surfaces, the friction between the slide block 3 and the column 1 is increased, and the load on the power mechanism is reduced when machining on the same plane.
[0023] In this embodiment, a plurality of first connection ports 307 are evenly arranged inside the fixed plate 303. The fixed plate 303 is fixedly connected to the slide 3 through the plurality of first connection ports 307. By setting a plurality of first connection ports 307, the tool can be more stably connected to the slide 3.
[0024] The working principle of this device is as follows: During use, the slide block 3 is slidably connected to the column 1, the upper fixed seat 101, and the lower fixed seat 102 through the guide rail 302 of the slide groove 103, the protrusion 104, and the groove 305. This increases the torsional resistance of the connection between the slide block 3 and the column 1 through multiple guide rails 302, greatly increasing the service life of the slide block 3 and the accuracy of the machining center after long-term use. During use, the heat generated by the workpiece inside the slide block 3 is dissipated through the heat dissipation port 306 into the gap between the column 1 and the slide block 3, and finally overflows from multiple heat dissipation holes, greatly improving the heat dissipation capacity of the device, allowing the internal workpiece to be used for a long time and reducing maintenance costs.
[0025] All electrical components mentioned in this article are real-world electrical components.
[0026] Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples mentioned above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model are also within the protection scope of this utility model.
Claims
1. A CNC gantry six-guide-rail square slide ram mechanism, comprising a column (1), characterized in that: A slide rail connecting device (2) is fixedly connected to one side of the column (1), and a slide rail (5) is slidably connected to one side of the slide rail connecting device (2). A slide block (3) is slidably connected inside the column (1). A power box (4) is bolted to the top of the slide block (3). Power mechanisms are provided on both sides of the bottom of the power box (4). Six guide rails (302) are fixedly provided on the outside of the slide block (3). A fixed plate (303) is fixedly connected to the bottom of the slide block (3). A clamp (304) is fixedly connected to the bottom of the fixed plate (303). An upper fixed seat (101) and a lower fixed seat (102) are fixedly provided on the upper and lower sides of the column (1). A sliding groove (103) is provided inside both the upper fixed seat (101) and the lower fixed seat (102).
2. The CNC gantry six-guide-rail square slide mechanism according to claim 1, characterized in that: The power mechanism includes telescopic devices (401) fixedly connected to both sides of the bottom of the power box (4). The outer cylinder of the telescopic device (401) is fixedly disposed between the upper fixed seat (101) and the lower fixed seat (102). A motor (402) is fixedly disposed on the top of the power box (4). The telescopic device (401) and the motor (402) are connected by transmission. A plurality of second connection ports (403) are fixedly disposed on the bottom of the power box (4).
3. The CNC gantry six-guide-rail square slide mechanism according to claim 1, characterized in that: The upper fixed seat (101) and the lower fixed seat (102) are both tightly fitted with the slide block (3). The six guide rails (302) are all slidably connected inside the slide groove (103). The column (1) has multiple heat dissipation holes fixedly provided on the three sides away from the slide rail connection device (2). There is a gap between the inner side of the column (1) and the slide block (3) at the heat dissipation holes.
4. The CNC gantry six-guide-rail square slide mechanism according to claim 1, characterized in that: The inner sides of the column (1), the upper fixing seat (101) and the lower fixing seat (102) are fixedly provided with protrusions (104) near the slide rail connecting device (2), and the slide block (3) is fixedly provided with a groove (305) on one side, and the protrusions (104) and the groove (305) fit tightly together.
5. A CNC gantry six-guide-rail square slide block mechanism according to claim 3, characterized in that: A top cover (301) is fixedly installed on one side of the slide (3), and a heat dissipation port (306) is opened inside the top cover (301). The heat dissipation hole on the outside of the column (1) is set as a large hole at the heat dissipation port (306).
6. The CNC gantry six-guide-rail square slide mechanism according to claim 1, characterized in that: The six guide rails (302) have rough surfaces on their outer sides, except for the top surface and both sides of the top surface.
7. A CNC gantry six-guide-rail square slide block mechanism according to claim 1, characterized in that: The fixed plate (303) has a plurality of first connection ports (307) evenly arranged inside, and the fixed plate (303) is fixedly connected to the slide (3) through the plurality of first connection ports (307).