Numerical control gantry type double-station sliding block grinding machine

Abstract

The utility model discloses a numerical control gantry type double-station sliding block grinding machine which comprises double stand columns welded to the upper end of a machine body, a cross beam is fixed to the upper ends of the double stand columns, and the machine body, the double stand columns and the cross beam are arranged to form a closed frame structure. The transverse dragging plates are arranged on the left side and the right side of the upper end of the cross beam, vertical dragging plates are arranged on the transverse dragging plates, and high-speed vertical grinding heads are installed at the lower ends of the vertical dragging plates; and the sliding groove is formed in the middle position of the upper end of the lathe bed, a workbench is clamped to the upper end of the sliding groove, a fixing mechanism is arranged at the upper end of the workbench, a machined object is limited in an adsorption mode, and the object is prevented from falling off in the moving process. According to the numerical control gantry type double-station sliding block grinding machine, a workpiece can be adsorbed into the grinding machine, the phenomenon that the workpiece deviates in the machining process of the grinding machine is avoided, the working efficiency is greatly improved through the arrangement of double stations, and the function of chamfering the two ends of the sliding block is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to numerically controlled grinders, in particular to a numerically controlled gantry type double-station slider grinder. Background Art

[0002] Grinding machines are used to process workpieces. Grinding machines can greatly improve work efficiency and can process various curved surfaces, special-shaped boundaries, holes, slots and cavities.

[0003] In the prior art, a gantry type vertical and horizontal CNC grinding machine with publication number CN101817158A is connected to a servo motor at one end and a grinding head is installed at the other end; the vertical spindle is a high-speed electric spindle; the grinding head can be installed at the lower end of the vertical spindle to realize vertical and horizontal dual grinding processing of the machine tool; a milling tool can also be installed on the vertical spindle, so that the machine tool can perform milling processing such as drilling, trimming, chamfering, etc.

[0004] The CNC grinder used can realize all-round processing of the workpiece by installing multiple grinding heads. When placing the workpiece, it is usually clamped by a clamping structure or placed directly on the workbench. During the operation of the grinder, the workpiece will shake slightly or the clamping structure will exert force on the workpiece. If the clamping force is too large, it will affect the structure of part of the workpiece, and the clamping structure must be operated to affect the processing efficiency. Utility Model Content

[0005] The utility model aims to provide a CNC gantry double-station slider grinder to solve the problem in the background technology mentioned above that the processing efficiency of grinders currently on the market is low and workpiece clamping is required.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC gantry type double-station slider grinder, a CNC gantry type double-station slider grinder, comprising double columns welded to the upper end of a bed, a crossbeam being fixed to the upper end of the double columns, and a closed frame structure is formed by the arrangement of the bed, the double columns and the crossbeam;

[0007] Also includes:

[0008] A transverse carriage is arranged on the left and right sides of the upper end of the crossbeam, and a vertical carriage is arranged on the transverse carriage, and a high-speed vertical grinding head is installed at the lower end of the vertical carriage;

[0009] A slide is installed at the middle position of the upper end of the bed, and a workbench is clamped on the upper end of the slide, and a fixing mechanism is provided on the upper end of the workbench to limit the processing object by adsorption to prevent the object from falling off during movement.

[0010] Preferably, the fixing mechanism comprises an electric permanent magnetic chuck, which is installed on the left and right sides of the upper end of the workbench, and a horizontal grinding head is fixed to the lower end of the vertical slide, and the horizontal grinding head can fine-tune the surface of the electric permanent magnetic chuck.

[0011] Preferably, a through hole is provided at the lower end of the bed, and the through hole allows the grinding debris to fall off, thereby avoiding the upper end of the workbench from getting stuck.

[0012] Preferably, the horizontal slide is operated by a direct connection between a servo motor and a ball screw, the workbench is operated by a servo motor, a precision reducer, and a ball screw, and the vertical slide is operated by a servo motor, a precision worm gear reducer, and a ball screw.

[0013] Preferably, linear grating rulers are installed on the horizontal carriage and the vertical carriage to realize closed-loop control.

[0014] Preferably, the dimensions of the electric permanent magnetic chuck are 200mm×800mm respectively, and a grinding spindle and a dressing spindle are installed on the workbench. The grinding spindle adopts a dual high-speed electric spindle, and the maximum speed of the dual high-speed electric spindle is 30,000rpm, and the electric power is 7.5KW.

[0015] Preferably, two sets of automatic quantitative lubrication devices are installed inside the crossbeam, and the lubrication devices include thin oil lubrication and lithium-based grease lubrication. Thin oil lubrication is used for lubrication of the vertical slide plate, and lithium-based grease lubrication is used for lubrication of the horizontal slide plate. Two cooling nozzles and coolant are installed inside the crossbeam. The coolant is connected to the cooling nozzles, and the coolant adopts a three-stage filtration method of magnetic separator + paper filtration + natural sedimentation. The flow rate of the coolant is 2X33L / min.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the CNC gantry double-station slider grinder can adsorb the workpiece inside the grinder, and the workpiece will not be offset during the grinding process. The double-station setting greatly improves the work efficiency and has the function of chamfering both ends of the slider. The specific contents are as follows:

[0017] 1. The workbench slides on the slide, which is a double-station slide to achieve efficient grinding. It adopts a gantry structure with good rigidity and stable precision. The workpiece is limited by the setting of an electric permanent magnetic chuck to avoid shaking of the workpiece during processing, improve efficiency, reduce labor and floor space;

[0018] 2. The dressing spindle is driven by a built-in synchronous stator and rotor and is used to dress the grinding wheels of two high-speed electric spindles. The dressing spindle can be disassembled, which is convenient for disassembly and installation;

[0019] 3. The internal system of the grinder controls the vertical and lateral feed of the two vertical grinding heads, the longitudinal feed of the worktable, and the rotary motion of the two high-speed spindles and the dressing spindle;

[0020] 4. The lubrication device adopts two types of lubrication: thin oil lubrication and lithium-based grease lubrication. Different lubricants are used to lubricate different parts. The setting of lubricants can reduce the friction between parts and protect the parts. The lubrication device can adopt manual and automatic lubrication methods;

[0021] 5. The coolant is sprayed through the cooling nozzle onto the workpiece and the high-speed vertical grinding head to cool the high-speed vertical grinding head and the workpiece, thereby avoiding high temperatures after the high-speed vertical grinding head and the workpiece come into contact with each other, and protecting the high-speed vertical grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the crossbeam of the utility model;

[0025] Figure 4 This is a schematic diagram of the top view of the structure of the electric permanent magnetic chuck of the utility model;

[0026] Figure 5 This is a schematic diagram of the side view structure of the high-speed vertical grinding head of the utility model;

[0027] Figure 6 This is a schematic diagram of the through hole structure of the utility model when viewed from above.

[0028] In the figure: 1. bed; 2. slide; 3. double columns; 4. crossbeam; 5. horizontal slide; 6. vertical slide; 7. electric permanent magnetic chuck; 8. workbench; 9. high-speed vertical grinding head; 10. through hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 6 , the utility model provides the following technical solutions:

[0031] Embodiment 1: In order to solve the problem of slow grinding and lack of chamfering function in the prior art, the following technical solution is disclosed. Figure 1 and Figure 2 As shown, the CNC gantry double-station slider grinder comprises a double column 3 welded to the upper end of the bed 1, a crossbeam 4 is fixed to the upper end of the double column 3, and a closed frame structure is formed by the arrangement of the bed 1, the double column 3 and the crossbeam 4; it also comprises: a transverse slide 5 arranged on the left and right sides of the upper end of the crossbeam 4, and a vertical slide 6 is arranged on the transverse slide 5, and a high-speed vertical grinding head 9 is installed at the lower end of the vertical slide 6; the transverse slide 5 is operated by a servo motor and a ball screw direct connection mode, the workbench 8 is operated by a servo motor, a precision reducer and a ball screw mode, and the vertical slide 6 is operated by a servo motor, a precision worm gear reducer and a ball screw mode.

[0032] Linear grating rulers are installed on the horizontal carriage 5 and the vertical carriage 6 to realize closed-loop control;

[0033] The arrangement of the transverse carriage 5 and the vertical carriage 6 can change the position of the high-speed vertical grinding head 9, thereby increasing the workpiece surface processing range. The arrangement of the transverse carriage 5 and the vertical carriage 6 can independently perform transverse and vertical feed movements. The slide 2 adopts a high-rigidity linear rolling guide rail, which has high rigidity and precise positioning.

[0034] Embodiment 2: A new technical solution is added on the basis of Embodiment 1, which can make the workpiece stably located above the electric permanent magnetic suction cup 7. The slide 2 is installed in the middle position of the upper end of the bed 1, and the upper end of the slide 2 is engaged with a workbench 8, and the upper end of the workbench 8 is provided with a fixing mechanism, which limits the processing object by adsorption to prevent the object from falling off during the movement.

[0035] The fixing mechanism includes an electric permanent magnetic chuck 7, which is installed on the left and right sides of the upper end of the workbench 8. A horizontal grinding head is fixed at the lower end of the vertical carriage 6, and the horizontal grinding head can finely trim the surface of the electric permanent magnetic chuck 7;

[0036] Place the workpiece on the electric permanent magnetic chuck 7, press the workpiece downward by hand, and firmly place the workpiece on the electric permanent magnetic chuck 7 through the electric permanent magnetic chuck 7 to avoid shaking of the workpiece during processing, so as to avoid shaking affecting the normal processing of the workpiece;

[0037] The lower end of the bed 1 is provided with a through hole 10, through which the grinding debris can fall off the grinding machine, thereby avoiding the phenomenon of engagement at the upper end of the workbench 8;

[0038] The size of the electric permanent magnetic chuck 7 is 200mm×800mm. A grinding spindle and a dressing spindle are installed on the workbench 8. The grinding spindle adopts a dual high-speed electric spindle. The maximum speed of the dual high-speed electric spindle is 30000rpm and the electric power is 7.5KW.

[0039] Two sets of automatic quantitative lubrication devices are installed inside the crossbeam 4. The lubrication devices include thin oil lubrication and lithium-based grease lubrication. Thin oil lubrication is used to lubricate the vertical slide 6, and lithium-based grease lubrication is used to lubricate the horizontal slide 5. Two cooling nozzles are installed inside the crossbeam 4 and filled with coolant. The coolant is connected to the cooling nozzle, and the coolant adopts a three-stage filtration method of magnetic separator + paper filtration + natural sedimentation. The flow rate of the coolant is 2X33L / min. During the processing, the coolant is sprayed through the cooling nozzle to cool the workpiece and the high-speed vertical grinding head 9, protect the high-speed vertical grinding head 9 and the workpiece, and greatly improve the service life of the high-speed vertical grinding head 9 and the workpiece.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A CNC gantry-type double-station slider grinding machine, comprising a double column (3) welded to the upper end of a bed (1), a crossbeam (4) being fixed to the upper end of the double column (3), and a closed frame structure is formed by the arrangement of the bed (1), the double column (3) and the crossbeam (4); It is characterized in that Also includes: A transverse carriage (5) is arranged on the left and right sides of the upper end of the crossbeam (4), and a vertical carriage (6) is arranged on the transverse carriage (5), and a high-speed vertical grinding head (9) is installed at the lower end of the vertical carriage (6); The slide groove (2) is installed at the middle position of the upper end of the bed (1), and the upper end of the slide groove (2) is engaged with a workbench (8), and the upper end of the workbench (8) is provided with a fixing mechanism, which limits the processing object by adsorption to prevent the object from falling off during the movement.

2. The CNC gantry double-station slider grinding machine according to claim 1 is characterized in that: The fixing mechanism comprises an electric permanent magnetic suction cup (7) which is mounted on the left and right sides of the upper end of the workbench (8). A horizontal grinding head is fixed to the lower end of the vertical carriage (6), and the horizontal grinding head can fine-tune the surface of the electric permanent magnetic suction cup (7).

3. The CNC gantry double-station slider grinding machine according to claim 1 is characterized in that: A through hole (10) is provided at the lower end of the bed (1), and the through hole (10) allows the grinding debris to fall off, thereby preventing the upper end of the workbench (8) from getting stuck.

4. The CNC gantry double-station slider grinding machine according to claim 1, characterized in that: The horizontal carriage (5) is operated by a servo motor and a ball screw direct connection method, the workbench (8) is operated by a servo motor, a precision reducer, and a ball screw method, and the vertical carriage (6) is operated by a servo motor, a precision worm gear reducer, and a ball screw method.

5. The CNC gantry double-station slider grinding machine according to claim 4 is characterized in that: The transverse carriage (5) and the vertical carriage (6) are provided with linear grating rulers to realize closed-loop control.

6. The CNC gantry double-station slider grinding machine according to claim 2, characterized in that: The dimensions of the electric permanent magnetic chuck (7) are 200 mm×800 mm. A grinding spindle and a dressing spindle are installed on the workbench (8). The grinding spindle adopts a dual high-speed electric spindle. The maximum speed of the dual high-speed electric spindle is 30,000 rpm and the electric power is 7.5 kW.

7. The CNC gantry double-station slider grinding machine according to claim 2, characterized in that: Two sets of automatic quantitative lubrication devices are installed inside the crossbeam (4), and the lubrication devices include two types of lubrication: thin oil lubrication and lithium-based grease lubrication. The thin oil lubrication is used to lubricate the vertical carriage (6), and the lithium-based grease lubrication is used to lubricate the horizontal carriage (5). Two cooling nozzles are installed inside the crossbeam (4) and are filled with coolant. The coolant is connected to the cooling nozzles, and the coolant adopts a three-stage filtration method of magnetic separator + paper filtration + natural sedimentation. The flow rate of the coolant is 2X33L / min.

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