High-rigidity double-beam type numerical control profiling machine

Abstract

The utility model discloses a high-rigidity double-beam type numerical control profiling machine, which relates to the technical field of profiling machines and comprises a machine base, a double-beam type frame arranged at the top of the machine base, a machine head main body arranged on the double-beam type frame and a machining table arranged below the machine head main body. The double-beam type frame comprises two cross beams arranged in parallel and side boxes arranged at the two ends of the cross beams, oil grooves are welded to the tops of the cross beams, X-axis guide rails are arranged in the two oil grooves, and an X-axis rack is arranged in one oil groove; the whole structure is more stable through the arrangement of the double-beam type frame, the weighting phenomenon is avoided, the guide rail is lubricated in an oil-immersed mode through the arrangement of the oil groove, the lubricating effect is improved, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of profiling machine technology, and more specifically to a high-rigidity double-beam CNC profiling machine. Background Technology

[0002] A copying machine is a semi-automatic machine tool that performs cutting operations by controlling the movement trajectory of the cutting tool or workpiece according to a template or model.

[0003] Existing contouring machines employ a single-beam structure, with guide rails mounted on the sidewalls of the crossbeam. The machine head slides along these guide rails. The main design flaws of this single-beam structure are: limited torsional stiffness and bending resistance; when the guide rails are mounted on the sidewalls, the bending and torque moments generated by the machine head's weight directly act on the sidewall guide rails, making them prone to plastic deformation due to long-term asymmetric loads; and the sidewall-mounted guide rails must withstand the lateral force during machine head sliding, further weakening overall stability. Therefore, structural improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a high-rigidity double-beam CNC profiling machine in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A high-rigidity double-beam CNC copying machine includes a base, a double-beam frame on top of the base, a head body mounted on the double-beam frame, and a processing table below the head body.

[0007] The double-beam frame consists of two parallel crossbeams and side boxes at both ends of the crossbeams. Oil troughs are welded to the top of the crossbeams, and both troughs contain X-axis guide rails. One of the troughs also contains an X-axis rack. The troughs are sealed around the sides and bottom, with only an opening at the top to prevent leakage of the internal liquid.

[0008] The side box includes an L-shaped plate and a shell, which are welded and fixed together. The side wall of the L-shaped plate is fixed to a crossbeam, and the side wall of the shell is provided with a door panel. The four corners of the door panel are screwed to the shell. The door panel facilitates the opening of the side box for motor installation.

[0009] The L-shaped plate has four reinforcing plates along its length. The reinforcing plates are connected to the L-shaped plate by welding. The four reinforcing plates reinforce the L-shaped plate to prevent deformation. The other four reinforcing plates are arranged at equal intervals to divide the L-shaped plate into three equal parts, which facilitates the installation of the motor in the middle section of the L-shaped plate, improves installation efficiency, and the central installation of the motor ensures that the overall center of gravity of the side box is centered and stable.

[0010] The L-shaped plate has a slide block at its bottom. The slide block slides in conjunction with the Y-axis guide rail on the top of the machine base, allowing the L-shaped plate to slide along the machine base. The motor mounted on the L-shaped plate is connected to a Y-gear via its output shaft. The Y-gear engages with the Y-axis rack on the machine base, and the rotation of the motor causes the L-shaped plate to move along the Y-axis guide rail.

[0011] The oil tank is filled with lubricating oil. By injecting lubricating oil into the oil tank to wet the X-axis guide rail and X-axis rack, compared with the existing technology of periodically adding oil to the guide rail using an oil pump, the oil immersion lubrication of the guide rail is more effective, eliminates the need for frequent adding and subsequent fault repair, reduces costs and improves lubrication efficiency.

[0012] Dust covers are installed on both sides of the top of the oil tank. These dust covers are mounted on the side box using fasteners with an L-shaped structure. Both the vertical and horizontal plates of the fasteners have oblong holes. The dust covers prevent external dust from falling into the oil tank and contaminating the lubricating oil. The fasteners are connected to the dust covers via screws through the oblong holes on the vertical plates. The end of the dust cover furthest from the fasteners is connected to the machine head, moving the dust cover as the machine head moves. The fasteners are also connected to the side box via screws through oblong holes on the horizontal plates. The dust covers have an inverted U-shaped structure, and the oblong holes on both the horizontal and vertical plates facilitate position adjustment, preventing the dust covers from being too close to the oil tank and causing excessive wear.

[0013] The surface of the crossbeam is covered with a tin-zinc alloy layer, and a tungsten carbide wear-resistant layer is placed at the bottom of the tin-zinc alloy layer. When the contouring machine is working, gravel and water will continuously splash onto the bottom of the crossbeam, causing corrosion. The tin-zinc alloy layer is attached to the crossbeam substrate by electroplating to form a dense anti-corrosion layer. The tungsten carbide wear-resistant layer is then welded to the bottom of the tin-zinc alloy layer to improve wear resistance and extend the service life of the crossbeam.

[0014] The bottom of the tungsten carbide wear-resistant layer has several protrusions. The protrusion design further increases wear resistance and improves abrasion and impact resistance.

[0015] The crossbeam is made of heat-treated steel. Heat treatment processes such as quenching and tempering can significantly improve the strength, hardness and rigidity of steel.

[0016] In this utility model, the slide at the bottom of the machine head body is used to connect with the X-axis guide rail, and the motor on the machine head body is connected with the X-axis rack through the X-gear. The motor drives the machine head to move along the crossbeam. The connection between the slide and the X-axis guide rail and the connection between the motor and the X-axis rack are existing technologies and will not be described in detail in this utility model.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention makes the overall structure more stable by setting a double-beam frame to avoid uneven weight distribution, and improves the lubrication effect and reduces costs by setting an oil groove for the guide rail to use oil immersion lubrication. Attached Figure Description

[0019] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0020] Fig. 2 This is a schematic diagram of a double-beam frame structure;

[0021] Fig. 3 This is a schematic diagram of the internal structure of the side box;

[0022] Fig. 4 This is a schematic diagram of the dust cover structure;

[0023] Fig. 5 This is a schematic diagram of a structure with a tin-zinc alloy layer and a tungsten carbide wear-resistant layer on the crossbeam;

[0024] Fig. 6 This is a partial structural schematic diagram of the present invention.

[0025] Reference numerals: 1. Base; 2. Double-beam frame; 3. Machine head body; 4. Machining table; 5. Crossbeam; 6. Side box; 7. Oil tank; 8. X-axis guide rail; 9. X-axis rack; 10. L-shaped plate; 11. Housing; 12. Door panel; 13. Reinforcing plate; 14. Slide; 15. Y-axis guide rail; 16. Y-axis rack; 17. Dust cover; 18. Fixing component; 19. Waist-shaped hole; 20. Tin-zinc alloy layer; 21. Tungsten carbide wear-resistant layer; 22. Protrusion. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figs. 1 to 6As shown, this embodiment provides a high-rigidity double-beam CNC copying machine, including a base 1, a double-beam frame 2 on the top of the base 1, a head body 3 mounted on the double-beam frame 2, and a processing table 4 located below the head body 3.

[0030] The double-beam frame 2 includes two parallel crossbeams 5 and side boxes 6 located at both ends of the crossbeams 5. Oil troughs 7 are welded to the top of the crossbeams 5, and both oil troughs 7 are equipped with X-axis guide rails 8. One of the oil troughs 7 contains an X-axis rack 9. The oil troughs 7 are closed on all sides and at the bottom, with only an opening at the top to prevent leakage of the internal liquid.

[0031] The side box 6 includes an L-shaped plate 10 and a housing 11, which are welded together. The side wall of the L-shaped plate 10 is fixed to the crossbeam 5. The side wall of the housing 11 is provided with a door panel 12, and the four corners of the door panel 12 are screwed to the housing 11. The door panel 12 facilitates the opening of the side box 6 for motor installation.

[0032] The L-shaped plate 10 is provided with four reinforcing plates 13 along its length. The reinforcing plates 13 are connected to the L-shaped plate 10 by welding. The four reinforcing plates 13 reinforce the L-shaped plate 10 to prevent deformation. The other four reinforcing plates 13 are arranged at equal intervals to divide the L-shaped plate 10 into three equal parts, which facilitates the installation of the motor in the middle section of the L-shaped plate 10, improves installation efficiency, and the central installation of the motor makes the overall center of gravity of the side box 6 central and stable.

[0033] The bottom of the L-shaped plate 10 is provided with a slide block 14. The slide block 14 is slidably connected to the Y-axis guide rail 15 on the top of the machine base 1, so that the L-shaped plate 10 slides along the machine base 1. The function of the motor installed on the L-shaped plate 10 is to connect to the Y gear through the motor output shaft. The Y gear is connected to the Y-axis rack 16 on the machine base 1. The rotation of the motor causes the L-shaped plate 10 to move along the Y-axis guide rail 15.

[0034] The oil sump 7 is filled with lubricating oil. By injecting lubricating oil into the oil sump 7 to wet the X-axis guide rail 8 and X-axis rack 9, compared with the prior art of periodically adding oil to the guide rail using an oil pump, the oil immersion lubrication of the guide rail is more effective, eliminates the need for frequent adding and subsequent fault repair, reduces costs and improves lubrication efficiency.

[0035] Dust covers 17 are provided on both sides of the top of the oil tank 7. The dust covers 17 are installed on the side box 6 by fasteners 18. The fasteners 18 have an L-shaped structure and have waist-shaped holes 19 on both the vertical and horizontal plates. The dust covers 17 prevent external dust from falling into the oil tank 7 and contaminating the lubricating oil. The fasteners 18 are screwed to the dust covers 17 through the waist-shaped holes 19 on the vertical plate. The end of the dust cover 17 away from the fasteners 18 is connected to the machine head. When the machine head moves, it moves the dust cover 17. The fasteners 18 are screwed to the side box 6 through the waist-shaped holes 19 on the horizontal plate. The dust cover 17 has an inverted U-shaped structure. The waist-shaped holes 19 on the horizontal and vertical plates facilitate the adjustment of the position of the dust cover 17, preventing the dust cover 17 from being too close to the oil tank 7 and causing excessive wear.

[0036] The surface of the crossbeam 5 is provided with a tin-zinc alloy layer 20, and the bottom of the tin-zinc alloy layer 20 is provided with a tungsten carbide wear-resistant layer 21. When the contouring machine is working, gravel and water will continuously splash onto the bottom of the crossbeam 5, causing corrosion to the crossbeam 5. The tin-zinc alloy layer 20 is attached to the substrate of the crossbeam 5 by electroplating to form a dense anti-corrosion layer. The bottom of the tin-zinc alloy layer 20 is overlaid with a tungsten carbide wear-resistant layer 21 to improve wear resistance and extend the service life of the crossbeam 5.

[0037] The bottom of the tungsten carbide wear-resistant layer 21 has several protrusions 22. The protrusions 22 are designed to further increase wear resistance and improve wear resistance and impact resistance.

[0038] The crossbeam 5 is made of heat-treated steel. Heat treatment processes such as quenching and tempering can significantly improve the strength, hardness and rigidity of steel.

[0039] In this utility model, the slide 14 at the bottom of the machine head body 3 is used to connect with the X-axis guide rail 8. The motor on the machine head body 3 is connected with the X-axis rack 9 through the X-gear. The motor drives the machine head to move along the crossbeam 5. The connection between the slide 14 and the X-axis guide rail 8 and the connection between the motor and the X-axis rack 9 are existing technologies and will not be described in detail in this utility model.

Claims

1. A high-rigidity double-beam numerical control copying machine, comprising a base, a double-beam frame arranged on the top of the base, a head main body mounted on the double-beam frame, and a machining table arranged below the head main body. The double-beam frame comprises two parallel arranged cross beams and side boxes arranged at the two ends of the cross beams, oil grooves are welded on the top of the cross beams, X guides are arranged in the two oil grooves, and an X rack is arranged in one of the oil grooves.

2. The high-rigidity double-beam type NC copying machine according to claim 1, characterized by The side box comprises an L-shaped plate and a shell, the L-shaped plate and the shell are fixedly welded, the side wall of the L-shaped plate is fixedly connected with the cross beam, the side wall of the shell is provided with a door plate, and the four corners of the door plate are screw-connected with the shell.

3. The high-rigidity double-beam type NC copying machine according to claim 2, characterized by Four reinforcing plates are arranged on the L-shaped plate along the length direction of the L-shaped plate.

4. The high-rigidity double-beam type NC copying machine according to claim 3, characterized by A sliding seat is arranged at the bottom of the L-shaped plate.

5. The high rigidity dual beam type CNC copying machine according to claim 1, characterized in that, Lubricating oil is injected into the oil groove.

6. The high rigidity dual beam type CNC copying machine according to claim 1, characterized by, Dust covers are arranged on the two sides of the top of the oil groove, the dust covers are mounted on the side box through fixing members, the fixing members have an L-shaped structure, waist-shaped holes are arranged on the vertical plate and the horizontal plate of the fixing members.

7. The high rigidity dual beam type CNC profiling machine according to claim 1, characterized in that, A tin-zinc alloy layer is arranged on the surface of the cross beam, and a tungsten carbide wear-resistant layer is arranged at the bottom of the tin-zinc alloy layer.

8. The high rigidity double-beam type NC copying machine according to claim 7, characterized by A plurality of protrusions are formed at the bottom of the tungsten carbide wear-resistant layer.

Images