CN116494094A - Double-upright-column compound grinding machine for simultaneously grinding two parallel surfaces - Google Patents

Abstract

The invention provides a double-column compound grinding machine for simultaneous grinding of two parallel surfaces, which belongs to the technical field of grinding machines and includes: a main base and a side base; the side bases are two, symmetrically arranged on both sides of the main base, and perpendicular to the main base; a movable worktable is arranged above the main base; a partition plate is arranged on the worktable; a movable ground frame is arranged on the side frame; A liftable main shaft front seat is arranged on the side facing the main base; a motor is arranged on the main shaft front seat; the output shaft of the motor is arranged downward and is connected with a grinding wheel. The invention adopts two grinding wheels for grinding processing, which improves the work efficiency, and can realize multi-directional movement at the same time, thereby improving the applicability of the grinding machine.

Description

A double-column compound grinding machine for simultaneous grinding of two parallel surfaces

technical field

The invention relates to the technical field of grinding machines, in particular to a double-column compound grinding machine for simultaneously grinding two parallel surfaces.

Background technique

A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinding machines use high-speed rotating grinding wheels for grinding, and a few use other abrasive tools such as oil stones and abrasive belts and free abrasives for processing, such as honing machines, superfinishing machine tools, abrasive belt grinders, grinding machines and polishing machine etc. The grinding machine can process materials with higher hardness, such as hardened steel, hard alloy, etc.; it can also process brittle materials, such as glass and granite. The grinding machine can be used for grinding with high precision and small surface roughness, as well as high-efficiency grinding, such as powerful grinding. When the existing grinding machine processes the workpiece, only one grinding wheel grinds the workpiece, the processing speed is slow and the position of the workpiece needs to be adjusted many times, resulting in errors, resulting in a decrease in processing accuracy. At the same time, the grinding wheel of the existing grinding machine moves in a single direction The grinding process is realized by cooperating with the movement of the workpiece, which has poor applicability and low movement accuracy, which needs to be improved.

Contents of the invention

The object of the present invention is to provide a double-column compound grinding machine for simultaneously grinding two parallel surfaces.

For solving the problems of the technologies described above, the purpose of the present invention is achieved in that:

A double-column compound grinding machine for simultaneous grinding of two parallel surfaces, comprising: a main base and a side base; the side bases are two, symmetrically arranged on both sides of the main base, and perpendicular to the main base;

A movable workbench is arranged above the main base; the workbench is driven to move by a forward and backward movement mechanism; a dividing plate, an electromagnetic sucker and a pressing mechanism are arranged on the workbench; the electromagnetic sucker is arranged on the dividing The top of the disc is used to suck the workpiece; the pressing mechanism is arranged above the electromagnetic chuck, which can be lifted and lowered to press the workpiece;

The side base is provided with a movable ground frame; the upper frame is driven by a left and right moving mechanism; the side of the upper frame facing the main base is provided with a liftable main shaft front seat; the main shaft front seat passes through Driven by a lifting mechanism; a motor is arranged on the front seat of the main shaft; the output shaft of the motor is arranged downward and connected with a grinding wheel.

On the basis of the above scheme and as a preferred scheme of the above scheme, the front and rear moving mechanism includes front and rear slide rails, front and rear servo motors, and front and rear ball screws; the front and rear slide rails are fixed above the main base; the workbench Slidingly arranged on the front and rear slide rails, the bottom is screwed to the front and rear ball screws; the front and rear servo motors are used to drive the front and rear ball screws to rotate.

On the basis of the above-mentioned solution and as a preferred solution of the above-mentioned solution, the pressing mechanism includes a fixing seat and a pressing plate; There is an air cylinder; the pressing plate is fixed on the end of the push rod of the air cylinder.

On the basis of the above solution and as a preferred solution of the above solution, the left and right moving mechanism includes left and right slide rails, left and right servo motors, and left and right ball screws; the left and right slide rails are arranged on the side frame; the upper The bottom of the frame is slidably connected to the left and right slide rails, and is screwed to the left and right ball screws; the left and right servo motors are used to drive the left and right ball screws to rotate.

On the basis of the above scheme and as a preferred scheme of the above scheme, the lifting mechanism includes a lifting slide rail, a lifting servo motor, and a lifting ball screw; the lifting slide rail is arranged on the upper frame; the main shaft front seat Slidingly arranged on the lifting slide rail, and threadedly connected with the lifting ball screw; the lifting servo motor is used to drive the lifting ball screw to rotate.

On the basis of the above scheme and as a preferred scheme of the above scheme, the front and rear moving mechanism, the left and right moving mechanism and the lifting mechanism are all covered with dust-proof folded cloth; the dust-proof folded cloth covers the outside of each mechanism and is arranged on each mechanism Sliding parts on both sides to keep out dust.

On the basis of the above solution and as a preferred solution of the above solution, an online measuring device is arranged on the front seat of the main shaft; the online measuring device is arranged on one side of the grinding wheel for real-time measurement of the displacement value of the grinding wheel.

On the basis of the above-mentioned scheme and as a preferred scheme of the above-mentioned scheme, a grinding wheel cover is arranged on the outside of the grinding wheel; The grinding wheel is directed toward the small half of the split disc for contact with the workpiece.

On the basis of the above-mentioned solution and as a preferred solution of the above-mentioned solution, a trimmer is arranged on one side of the split disk; the trimmer is fixed on the workbench.

The beneficial effects of the present invention are:

1. There are grinding wheels on both sides of the workpiece, which can grind both sides at the same time, which improves the processing efficiency.

2. Driven by the forward and backward moving mechanism, left and right moving mechanism and lifting mechanism, the grinding wheel can move in multiple directions. Connecting with CNC grinding software can realize automatic grinding, automatic dressing and automatic compensation, which reduces the skill requirements for operators and can Set up different programs such as rough grinding, fine grinding, and light grinding to ensure the consistency of roughness and dimensional accuracy of workpiece grinding.

3. The machine tool has good anti-vibration characteristics, precise motion characteristics, good structural rigidity and small thermal deformation characteristics; the moving parts of the machine tool have good rigidity and high feed sensitivity, and the feed axis, front and rear, left and right, and five axes of elevation all adopt " The driving mode of "servo motor + ball screw" also adopts pre-tightened precision linear guide rails, which have the characteristics of high rigidity, high positioning accuracy, and excellent anti-crawling performance.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a schematic diagram of the main frame and the upper structure of the present invention.

Fig. 5 is a side view of the main frame and the upper structure of the present invention.

Fig. 6 is a structural schematic diagram of the forward and backward moving mechanism of the present invention.

Fig. 7 is a schematic diagram of the side frame and the upper structure of the present invention.

Fig. 8 is a structural schematic diagram of the left and right moving mechanism of the present invention.

Fig. 9 is a schematic diagram of the upper structure of the side frame of the present invention.

In the figure: 1. Main base; 2. Side base; 3. Workbench; 4. Divider; 5. Electromagnetic sucker; 6. Upper frame; 7. Front seat of main shaft; 8. Motor; Dust-proof folding cloth; 11. Front and rear slide rails; 12. Front and rear servo motors; 13. Front and rear ball screws; 14. Fixing seat; 15. Compression plate; 16. Cylinder; ; 22, left and right servo motors; 23, left and right ball screws; 24, lifting slide rails; 25, lifting servo motors; 26, lifting ball screws;

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIGS. 1 to 3 , a double-column compound grinding machine for simultaneously grinding two parallel surfaces includes: a main frame 1 and a side frame 2 . There are two side frames 2, symmetrically arranged on both sides of the main frame 1, and perpendicular to the main frame 1. The main frame 1 and the side frame 2 are all in a rectangular structure, so that their upper parts can move.

As shown in FIGS. 4 to 6 , a movable workbench 3 is arranged above the main base 1 . The workbench 3 is driven to move forward and backward on the main base 1 by the forward and backward moving mechanism. The workbench 3 is provided with a split disc 4, an electromagnetic chuck 5 and a pressing mechanism. The split disc 4 is arranged on the top of the workbench 3, the electromagnetic chuck 5 is arranged on the top of the split disc 4, and is used to hold the workpiece, and the pressing mechanism is arranged on the top of the electromagnetic chuck 5, which can be lifted to compress the workpiece. A trimmer 40 is arranged on one side of the split disk 4 , and the trimmer 40 is fixed on the workbench 3 .

Preferably, as shown in FIG. 6 , the front and rear moving mechanism includes front and rear slide rails 11 , front and rear servo motors 12 and front and rear ball screws 13 . The front and rear slide rails 11 are fixed on the top of the main frame 1, and the quantity is two. The workbench 3 is slidably arranged on the front and rear slide rails 11, and the bottom is threaded with the front and rear ball screw rods 13. The front and rear servo motors 12 are used to drive the front and rear ball screw rods 13 to rotate. Ball screw 13 is arranged between two front and rear slide rails 11, and one end is connected with front and rear servo motor 12, which can drive workbench 3 and its superstructure to move back and forth when rotating. Further preferably, a dust-proof folded cloth 10 is fixed on the front and rear slide rails 11, and the dust-proof folded cloth 10 is distributed on both ends of the workbench 3, and can be stretched and compressed as the workbench 3 moves, which can prevent dust and the like from entering and moving forward and backward. The inside of the mechanism leads to a decrease in the accuracy of the mechanism.

In addition, the pressing mechanism includes a fixing seat 14 and a pressing plate 15 . The fixing seat 14 is arranged on the workbench 3 and is distributed on one side of the dividing disc 4 , the top end extends toward the dividing disc 4 and is provided with a cylinder 16 . The pressing plate 15 is fixed on the end of the push rod of the cylinder 16, and is driven by the cylinder 16 to realize lifting. Further, the outer cover of the cylinder 16 is provided with a protective cover to avoid dust accumulation. Optionally, the pressing mechanism is arranged on the workbench 3 through the second forward and backward movement mechanism, and the distance between the pressing mechanism and the dividing disc 4 can be adjusted through the second forward and backward movement mechanism. The second forward and backward moving mechanism is similar to the forward and backward moving mechanism, and both includes a slide rail, a ball screw and a motor; the slide rail is arranged on the top surface of the workbench 3, and the fixing seat 14 is slidably arranged on the slide rail, driven by the motor and the ball screw to move ; Also equipped with dust-proof folding cloth 10 simultaneously.

As shown in FIGS. 7 to 9 , a movable ground frame 6 is arranged on the side frame 2 . The upper frame 6 is driven by the left and right moving mechanism to move along the side frame 2. On the side of the upper frame 6 facing the main base 1, a liftable main shaft front seat 7 is arranged, and the main shaft front base 7 moves up and down through a lifting mechanism, and a motor 8 is arranged on the end facing the main base 1, and the output shaft of the motor 8 is arranged downward. , the end is connected with a grinding wheel 9, which is used to drive the grinding wheel 9 for rotary motion. Preferably, the outside of the grinding wheel 9 is provided with a grinding wheel cover 30, and the grinding wheel cover 30 is arranged on the large part of the grinding wheel 9 towards the upper frame 6 from top to bottom, leaving the small part of the grinding wheel 9 towards the dividing disc 4 so as to contact with the workpiece. The grinding wheel cover 30 can play a role of protection and isolation.

Specifically, as shown in FIG. 8 , the left and right moving mechanism includes left and right slide rails 21 , left and right servo motors 22 and left and right ball screws 23 . The left and right slide rails 21 are arranged on the side frame 2, and there are two in number. The bottom of the upper frame 6 is slidably connected to the left and right slide rails 21, and is threaded with the left and right ball screws 23. The left and right servo motors 22 are used to drive the left and right ball screws 23 to rotate, thereby driving the upper frame 6 to slide along the left and right slide rails 21 . The left and right ball screw rods 23 are arranged between the two left and right slide rails 21 . Preferably, the left and right sliding rails 21 are covered with dust-proof folded cloths 10, and the dust-proof folded cloths 10 are arranged on both sides of the upper frame 6 to prevent dust from entering the left and right moving mechanism.

Preferably, as shown in FIG. 9 , the lifting mechanism includes a lifting slide rail 24 , a lifting servo motor 25 and a lifting ball screw 26 . The upper frame 6 is hollow inside and opens towards the main base 1 side. The lifting slide rail 24 is arranged in the inner cavity of the upper frame 6, the main shaft front seat 7 extends from the side opening of the upper frame 6 to the inside of the upper frame 6 and is slidably arranged on the lifting slide rail 24, and is threadedly connected with the lifting ball screw 26 . The lifting servo motor 25 is used to drive the lifting ball screw 26 to rotate. The number of lifting slide rails 24 is two, vertically arranged inside the upper frame 6, the lifting ball screw 26 is arranged between the two lifting slide rails 24, and the top is connected with the lifting servo motor 25 arranged on the top of the upper frame 6. . Main shaft front seat 7 can do lifting motion along upper frame 6 under the drive of lifting servo motor 25 and lifting ball screw 26. Further, in order to prevent dust from entering the inside of the upper frame 6, a dust-proof folded cloth 10 is arranged on the side opening of the upper frame 6, and the dust-proof folded cloth 10 is distributed on the upper and lower sides of the main shaft front seat 7, and can be stretched and shrunk.

Further, an online measuring device 20 is arranged on the main shaft front seat 7, and the online measuring device 20 is arranged on one side of the grinding wheel 9 to measure the displacement value of the grinding wheel in real time and feed it back to the numerical control center so as to adjust the position of the grinding wheel 9 in real time.

Optionally, a telescopic clamping mechanism is provided on the side of the upper frame 6, and the telescopic clamping mechanism includes a telescopic arm. The telescopic arm can be stretched toward the workpiece to clamp the workpiece under the drive of the driving mechanism, so as to improve the stability of the workpiece during processing. .

The main frame 1 and the side frame 2 are fixed on the processing table by anchor screws, and the outer cover is equipped with a full cover, which completely isolates the internal mechanism, and a movable door is provided on one side for taking out and putting in workpieces. Full hood provides protection while keeping debris out. There is a cleaning water gun inside the full cover to wash the debris generated on the workbench and workpiece.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the scope of protection defined by the claims.

Claims (9)

1. A double-column compound grinding machine for simultaneous grinding of two parallel surfaces, characterized in that it comprises: a main frame (1) and a side frame (2); the side frame (2) is two, symmetrically arranged on The two sides of the main base (1) are perpendicular to the main base (1); A movable workbench (3) is arranged above the main base (1); the workbench (3) is driven to move by a forward and backward moving mechanism; a dividing disc (4), an electromagnetic Suction cup (5) and hold-down mechanism; Described electromagnetic chuck (5) is arranged on the top of described dividing plate (4), is used to suck workpiece; Described hold-down mechanism is arranged on the top of described electromagnetic chuck (5), can Lifting to compress the workpiece; The side frame (2) is provided with a movable ground frame (6); the upper frame (6) is driven by a left and right moving mechanism; the upper frame (6) faces the main frame (1) The side of the main shaft is provided with a liftable main shaft front seat (7); the main shaft front seat (7) is driven by a lifting mechanism; the main shaft front seat (7) is provided with a motor (8); the output shaft of the motor (8) is downward set with the grinding wheel (9) attached. 2. The double-column compound grinding machine for simultaneous grinding of two parallel surfaces according to claim 1, wherein the front and rear moving mechanism includes front and rear slide rails (11), front and rear servo motors (12), front and rear ball wires Rod (13); the front and rear slide rails (11) are fixed on the top of the main base (1); the workbench (3) is slidably arranged on the front and rear slide rails (11), and the bottom and the front and rear balls Screw rods (13) are threaded; the front and rear servo motors (12) are used to drive the front and rear ball screws (13) to rotate. 3. The dual-column compound grinding machine for simultaneous grinding of two parallel surfaces according to claim 1, wherein the pressing mechanism comprises a fixed seat (14) and a pressing plate (15); the fixed seat (14) is arranged on the workbench (3), the top end extends toward the direction of the dividing disc (4), and is provided with a cylinder (16); the pressing disc (15) is fixed on the cylinder (16) end of the push rod. 4. The double-column compound grinding machine for simultaneously grinding two parallel surfaces according to claim 1, wherein the left and right moving mechanism comprises left and right slide rails (21), left and right servo motors (22), left and right ball wires Rod (23); the left and right slide rails (21) are arranged on the side frame (2); the bottom of the upper frame (6) is slidingly connected to the left and right slide rails (21), and is connected with the The left and right ball screws (23) are threaded; the left and right servo motors (22) are used to drive the left and right ball screws (23) to rotate. 5. The double-column compound grinding machine for simultaneous grinding of two parallel surfaces according to claim 1, wherein the lifting mechanism comprises a lifting slide rail (24), a lifting servo motor (25), a lifting ball screw (26); the lifting slide rail (24) is arranged on the upper frame (6); the main shaft front seat (7) is slidably arranged on the lifting slide rail (24), and is connected with the lifting ball The screw mandrel (26) is threaded; the lift servo motor (25) is used to drive the lift ball screw (26) to rotate. 6. The dual-column compound grinding machine for simultaneous grinding of two parallel surfaces according to claim 1, wherein the front and rear moving mechanism, the left and right moving mechanism and the lifting mechanism are all covered with dust-proof folding cloth (10); The dust-proof folded cloth (10) covers the outside of each mechanism, and is arranged on both sides of the sliding part of each mechanism, so as to block dust. 7. a kind of two-column compound grinding machine that two parallel surfaces are ground simultaneously according to claim 1, is characterized in that, described main shaft front seat (7) is provided with on-line measuring device (20); Described on-line measuring device ( 20) It is arranged on one side of the grinding wheel (9) for real-time measurement of the displacement value of the grinding wheel. 8. The double-column compound grinding machine of a kind of two parallel surfaces grinding simultaneously according to claim 1, is characterized in that, described grinding wheel (9) outside is provided with grinding wheel cover (30); Described grinding wheel cover (30) is made of The upper and lower covers are arranged on the large part of the grinding wheel (9) facing the upper frame (6), leaving the small part of the grinding wheel (9) facing the dividing disc (4) so as to be in contact with the workpiece. 9. The double-column compound grinding machine for simultaneous grinding of two parallel surfaces according to claim 1, wherein a trimmer (40) is provided on one side of the split disc (4); the trimmer (40) ) is fixed on the workbench (3).