CN201283522Y - A single plane grinder - Google Patents

Abstract

The utility model is a single plane grinding machine. Including machine base, motor, spindle, grinding disc, column, pressurizing device, the motor is installed on the motor mounting frame fixed on the machine base, the grinding disc is fixedly connected with the main shaft, and the lower surface of the workpiece is placed flat on the upper surface of the grinding disc , The pressure device that acts on the upper surface of the workpiece is installed on the support frame, the support frame is connected with the column through the guide rail, the column is fixed on the machine base, and the main shaft is connected with the motor shaft of the motor through an elastic coupling. The utility model solves the problems caused by the use of the belt drive due to the use of the elastic coupling to connect the main shaft of the grinder to the motor shaft; and the use of the pressurizing device also solves the problems caused by the use of weights to load, At the same time, the linear bearing used in the pressurizing device can limit the pressure rod to only move up and down in a straight line. The dressing device for turning and dressing the grinding disc can trim the grinding disc with a flatness of micron level, and the dressing time is reduced from 1 hour to 3 minutes in the online dressing method using the correction ring, which greatly improves the work efficiency.

Description

A single plane grinder

technical field

The utility model relates to a single-plane grinding machine, in particular to a single-plane grinding processing machine tool suitable for various precision plane grinding, and belongs to the transformation technology of the single-plane grinding machine.

Background technique

In existing plane grinding (polishing) machines, the transmission chain between the driving motor of its grinding motion and the grinding machine main shaft generally adopts belt transmission. This belt transmission method will bring the following problems: first, the speed and torque of the main shaft are difficult to control accurately; second, when the speed is high, the belt is prone to slipping; It will reduce the life of the spindle and affect the rotation accuracy of the spindle.

In the way of applying grinding (polishing) pressure, the standard loading weight of a certain weight is generally used widely now. This loading method has the following disadvantages: one is that the weights are relatively heavy, which not only greatly increases the workload of the workers when loading by manpower, but also makes the workers tired and prone to accidents; the other is that the weights of the weights are all specific , unable to meet the different loading forces required under different process conditions.

Another feature of this type of plane grinding (polishing) machine is that the grinding (polishing) disc is generally trimmed by using a correction ring on-line trimming method. This trimming method can make the grinding disc obtain a relatively low surface roughness and flatness, but its One of the biggest disadvantages is that the trimming process is too time-consuming. For example, in the optical disc mold processing industry, to make the grinding disc meet the requirements for use, it generally takes about one hour to trim once, and it takes even longer for unskilled workers.

Utility model content

The purpose of the utility model is to consider the above problems and provide a single-plane grinder with simple structure, stable transmission, convenient loading, and fast dressing of the grinding disc. The utility model is reasonable in design, convenient and practical.

The technical scheme of the utility model is: including machine base, motor, main shaft, grinding disc, column, pressurizing device, motor is installed on the motor mounting frame fixed on the machine base, grinding disc and main shaft are fixedly connected, the lower surface of workpiece Placed flat on the upper surface of the grinding disc, the pressure device acting on the upper surface of the workpiece is installed on the support frame. The support frame is connected with the column through the guide rail, and the column is fixed on the machine base. The main shaft is connected to the motor through the elastic coupling. The motor shaft is connected.

The above-mentioned pressurizing device includes a cylinder, a pressure rod, a connecting plate, a linear bearing, and a bearing seat. The pressure rod that can only move in a straight line is installed in the linear bearing. The pressure head fixedly connected to the front end of the rod is pressed on the upper surface of the clamp which acts as a position limiter, and the clamp is placed on the upper surface of the workpiece.

The pressure head at the other end of the pressure rod is pressed in the hemispherical hole on the upper surface of the fixture.

The above-mentioned machine base is installed on the vibration-isolation foundation, and a horizontal adjustment screw for adjusting the levelness is provided at the bottom thereof.

Above-mentioned motor installation frame is fixed on the base of machine base by bolt.

An adjustment knob capable of adjusting the installation height of the support frame is installed on the above-mentioned column.

A trimming device capable of turning and trimming the grinding disc is also provided on the side of the grinding disc.

The above-mentioned trimming device at least includes a horizontal feed mechanism and a vertical fine-tuning mechanism. The horizontal feed mechanism includes a feed motor, a screw mandrel, a screw mandrel positioning piece, trimmer inner parts, a trimmer outer part, and a slide block; the screw mandrel and the The internal thread in the trimmer inner part is screwed together, the screw positioning piece is fixed on the bottom plane of the dresser outer part, the feed motor is fixed on the boss surface of the dresser outer part, the motor shaft of the feed motor and the screw rod pass through The flat keys are connected, and the vertical fine-tuning mechanism is fixed on the front end of the trimmer internal parts, and the vertical fine-tuning mechanism is fixedly connected with a turning knife.

The outer part of the trimmer is provided with a set screw to limit the degree of freedom of the outer part of the trimmer in the horizontal direction; the outer part of the trimmer is also provided with an adjustment screw to make the outer part of the trimmer reach the required levelness.

The inner part of the above-mentioned dresser is provided with a guide slider which moves linearly along the inner wall of the outer part of the dresser towards the center line of the grinding disc.

The utility model solves the problems caused by the use of the belt drive due to the use of the elastic coupling to connect the main shaft of the grinding machine with the motor shaft; and the use of the pressurizing device also solves the problem caused by the use of weight loading At the same time, the linear bearing used in the pressurization device can well limit the pressure rod to only do up and down linear motion. The dressing device for turning and dressing the grinding disc can not only trim the grinding disc with micron-level flatness, but also reduce the dressing time from 1 hour to 3 minutes when using the correction ring online dressing method, which greatly improves the work efficiency. The utility model is a convenient and practical single-plane grinding machine with ingenious design and excellent performance.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a left view of the utility model;

Fig. 3 is a left view of the pressurizing device of the present utility model;

Fig. 4 is the front view of the trimming device of the present utility model;

Fig. 5 is a schematic diagram of the outer parts of the trimmer in the trimming device of the present invention.

Detailed ways

Example:

The structure schematic diagram of the present utility model is shown in Fig. 1, 2, 3, 4, 5, comprises machine base 1, motor 3, main shaft 5, grinding disc 6, column 7, pressurizing device 8, and motor 3 is installed in and fixed on On the motor mounting frame 2 of the machine base 1, the grinding disc 6 is fixedly connected with the main shaft 5, the lower surface of the workpiece 51 is placed flat on the upper surface of the grinding disc 6, and the pressure device 8 acting on the upper surface of the workpiece 51 is installed on the support frame 70, the support frame 70 is connected with the column 7 through the guide rail 70a, and the column 7 is fixed on the base 1, wherein the main shaft 5 is connected with the motor shaft 3a of the motor 3 through the elastic coupling 4.

In this embodiment, the above-mentioned pressurizing device 8 includes a cylinder 11, a pressure rod 12, a connecting plate 13, a linear bearing 14, and a bearing seat 15. The pressure rod 12 that can only move linearly is installed in the linear bearing 14, and the pressure rod 12 The front end is connected with the cylinder shaft 11a of the cylinder 11 through the connecting plate 13, and the pressure head 12a fixedly connected to the front end of the pressure rod 12 is pressed on the upper surface of the clamp 52 which acts as a limiter, and the clamp 52 is placed on the upper surface of the workpiece 51. The air cylinder 11 is connected with the pneumatic system, and its pneumatic system is controlled by the grinder control system. The pressure head 12a at the other end of the pressure rod 12 is pressed into the hemispherical hole on the upper surface of the clamp 52 .

In this embodiment, the machine base 1 is installed on a vibration-isolated foundation, and a horizontal adjustment screw 50 for adjusting the levelness is provided at the bottom thereof. The above-mentioned motor mounting frame 2 is fixed on the base of the machine base 1 by bolts. An adjustment knob 53 capable of adjusting the installation height of the support frame 70 is installed on the above-mentioned column 7 .

A trimming device 10 capable of turning and trimming the grinding disc 6 is provided beside the grinding disc 6 . In this embodiment, the above-mentioned trimming device 10 includes at least a horizontal feed mechanism 30 and a vertical fine-tuning mechanism 40, and the horizontal feed mechanism 30 includes a feed motor 16, a screw 17, a screw positioning piece 18, trimmer internal parts 19. Dresser outer part 20, slider 61; screw rod 17 is screwed with the inner thread in the dresser inner part 19, the screw rod positioning piece 18 is fixed on the bottom plane 20a of the dresser outer part 20, and the feed motor 16 Fixed on the boss surface 20b of the trimmer outer part 20, the motor shaft 16a of the feed motor 16 is connected with the screw rod 17 through a flat key, and the vertical fine-tuning mechanism 40 is fixed on the front end of the trimmer inner part 19, and vertical fine-tuning The mechanism 40 is fixedly connected with a turning tool 41 .

The trimmer outer part 20 is provided with a set screw 63 that limits the degree of freedom of the trimmer outer part 20 in the horizontal direction; the above-mentioned trimmer outer part 20 is also provided with an adjustment screw 64 that makes the trimmer outer part 20 reach the required levelness .

The above-mentioned dresser inner part 19 is provided with a guide slider 61 that moves linearly along the inner wall 20c of the dresser outer part 20 toward the center line 6a of the grinding disc 6.

The working principle of the utility model is as follows: when the motor 3 is in operation, the elastic coupling 4 drives the main shaft 5, thereby driving the grinding disc 6 to rotate.

During the grinding process, the cylinder shaft 11a in the pressurizing device 8 drives the pressure rod 12 to move downward through the connecting plate 13, so that the pressure head 12a is pressed in the hemispherical hole on the upper surface of the clamp 52. When the grinding disc rotates, the workpiece 51 Under the limiting action of the indenter 12a and the clamp 52, it rotates around its own rotation centerline 51a. The complete grinding motion is formed by the rotation of the workpiece around its own rotation centerline 51a and the revolution relative to the rotation centerline 6a of the grinding disc.

The cylinder 11 in the pressurizing device 8 is controlled by the control system of the grinder, which can control the cylinder shaft 11a to move up and down. Since the pressure rod 12 is installed in the linear bearing 14, it can only move linearly. Therefore, the pressing rod 12 can smoothly move in a straight line in the vertical direction driven by the cylinder shaft, so as to realize loading and unloading of the workpiece 51 .

When it is necessary to adjust the height of the pressurizing device 8 in the vertical direction, because the pressurizing device 8 is installed on the support frame 70 , it is only necessary to adjust the height of the support frame 70 . Rotate the adjustment knob 53 clockwise or counterclockwise, the support frame 70 can be close to the front end of the column 7 and rise or fall accordingly in the vertical direction, stop rotating the adjustment knob 53, and the support frame 70 stops at the current position.

When the grinding disc 6 needs to be trimmed, the control system of the grinding machine controls the cylinder shaft 11a to move upward, thereby driving the pressure rod 12 to move upward. After the pressure head 12a leaves the clamp 52 for a certain distance, the cylinder 11 stops working, and the workpiece 51 and the clamp are removed. 52. At this time, the vertical fine-tuning mechanism 40 is adjusted so that the turning tool 41 fixedly connected thereto has a required feed rate relative to the upper surface 6A of the grinding disc 6 . Tightening the set screw 63 restricts the degree of freedom of the trimmer outer part 20 in the horizontal direction. Adjustment screw 64 is adjusted to bring trimmer outer 20 to the desired level. At this time, the control system of the grinding machine controls the motor 16 to rotate forward, and the motor 16 drives the screw mandrel 17 to rotate through the connection of the key. The plate 18 is restricted to only rotate, so the trimmer inner part 19 moves linearly towards the centerline 6a of the grinding disc 6 along the inner wall 20c of the trimmer outer part 20 under the guidance of the slider 61, and the vertical fine-tuning mechanism 40 is fixed on the front end of the trimmer inner part 19, and the turning knife 41 is fixedly connected with the vertical fine-tuning mechanism 40, so the turning knife 41 also moves linearly. At the same time, the grinding disc 6 rotates around its own axis 6 a driven by the spindle 5 . The combination of the linear motion of the turning blade 41 and the rotational motion of the grinding disc 6 can realize the continuous turning and trimming motion of the upper surface 6A of the grinding disc. When the motor 16 reversed, the turning tool 41 made a linear motion in the opposite direction, and its process is no longer repeated.

Claims (8)

1, a kind of monoplane grinder, comprise support (1), motor (3), main shaft (5), abrasive disk (6), column (7), pressue device (8), motor (3) is installed on the motor installing rack (2) that is fixed in support (1), abrasive disk (6) connects firmly with main shaft (5), the lower surface of workpiece (51) lies against the upper surface of abrasive disk (6), the pressue device (8) that pressure acts on workpiece (51) upper surface is installed on the bracing frame (70), bracing frame (70) connects with column (7) by guide rail (70a), column (7) is fixed on the support (1), it is characterized in that main shaft (5) links by the motor shaft (3a) of yielding coupling (4) with motor (3).

2, monoplane according to claim 1 grinder, it is characterized in that above-mentioned pressue device (8) comprises cylinder (11), depression bar (12), connecting plate (13), linear bearing (14), bearing block (15), can only make straight-line depression bar (12) is installed in the linear bearing (14), the front end of depression bar (12) links by the cylinder axis (11a) of connecting plate (13) with cylinder (11), the pressure head (12a) that connects firmly with depression bar (12) front end has been pressed in the upper surface of the anchor clamps (52) of position-limiting action, and anchor clamps (52) place the upper surface of workpiece (51).

3, monoplane according to claim 1 grinder is characterized in that above-mentioned motor installing rack (2) is by on the base that is bolted to support (1).

4, monoplane according to claim 1 grinder is characterized in that being equiped with on the above-mentioned column (7) adjusting knob (53) of the setting height(from bottom) that can regulate bracing frame (70).

5,, it is characterized in that the side of above-mentioned abrasive disk (6) also is provided with the trimming device (10) of energy turning finishing abrasive disk (6) according to each described monoplane grinder of claim 1 to 4.

6, monoplane according to claim 5 grinder, it is characterized in that above-mentioned trimming device (10) comprises a horizontal feed mechanism (30) and a vertical micro-adjusting mechanism (40) at least, horizontal feed mechanism (30) comprises feeding motor (16), screw mandrel (17), screw mandrel spacer (18), trimmer internals (19), the outer part (20) of trimmer, slide block (61); Internal thread in screw mandrel (17) and the trimmer internals (19) screws, screw mandrel spacer (18) is fixed on the baseplane (20a) of the outer part (20) of trimmer, feeding motor (16) is fixed on the boss face (20b) of the outer part (20) of trimmer, the motor shaft (16a) of feeding motor (16) links by flat key with screw mandrel (17), vertically micro-adjusting mechanism (40) is fixed in the front end of trimmer internals (19), and vertically micro-adjusting mechanism (40) is fixedly connected with turning cutter (41).

7, monoplane according to claim 6 grinder is characterized in that the outer part (20) of above-mentioned trimmer is provided with the holding screw (63) of outer part (20) free degree in the horizontal direction of restriction trimmer; The outer part (20) of above-mentioned trimmer also is provided with and makes the outer part (20) of trimmer meet the requirements of the adjustment screw (64) of levelness.

8, monoplane according to claim 7 grinder is characterized in that inwall (20c) that above-mentioned trimmer internals (19) are provided with part outside trimmer (20) trends towards the straight-line guide runner (61) of abrasive disk (6) centre of gyration line (6a).

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