CN205043556U - High precision centerless grinder - Google Patents

Abstract

The utility model discloses a high-precision centerless grinder, comprising a machine tool body, a grinding wheel assembly, an adjustment guide wheel assembly and a workpiece support, wherein the grinding wheel assembly is fixed to the machine tool body, the adjustment guide wheel assembly is slidably matched with the machine tool body, the workpiece support is fixed to one end of the adjustment guide wheel assembly close to the grinding wheel assembly, the workpiece support comprises a tool holder, a knife plate, a clamping block and an adjusting screw, a splitting groove for the knife plate to penetrate is opened on the tool holder, two clamping blocks are arranged on both sides of the top of the tool holder, the clamping blocks are locked to the top of the tool holder by adjusting screws, the knife plate is located at the lower end between the two clamping blocks, and the upper end between the two clamping blocks forms a V-shaped material groove for clamping the workpiece. The utility model is easy to clamp fine filamentary workpieces, is not easy to break, and has high efficiency.

Description

High precision centerless grinder

technical field

The utility model relates to a centerless grinder, in particular to a high-precision centerless grinder.

Background technique

Centerless grinding machine is a type of grinding machine that does not need to use the axis positioning of the workpiece for grinding. It mainly includes grinding wheels, adjusting guide wheels and workpiece supports. The grinding wheel is responsible for grinding, and the adjusting guide wheels control the rotation of the workpiece and control The feed rate of the workpiece is controlled, and the workpiece support supports the workpiece while grinding.

However, when the existing centerless grinding machine is clamping fine filamentary workpieces, it is easy to break the material and difficult to clamp.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a high-precision centerless grinding machine, which is easy to clamp fine filamentary workpieces, is not easy to break materials, and has high efficiency.

The purpose of this utility model is achieved through the following technical solutions:

High-precision centerless grinding machine, including machine tool body, grinding wheel assembly, adjusting guide wheel assembly and workpiece support, the grinding wheel assembly is fixed on the machine tool body, the adjusting guide wheel assembly is slidingly fitted with the machine body, and the workpiece support is fixed on the end of the adjusting guide wheel assembly close to the grinding wheel assembly , the workpiece support includes a knife rest, a knife plate, a clamp block and an adjusting screw. There is a splitting groove for the knife plate to penetrate on the knife rest. Two clamping blocks are set on both sides of the top of the knife rest. Close to the top of the tool holder, the knife plate is located at the lower end between the two clamping blocks, and the upper end between the two clamping blocks forms a V-shaped material trough for clamping the workpiece.

Preferably, the lower ends of the two clamping blocks are also pierced with adjustment plates.

Preferably, the grinding wheel assembly includes a grinding wheel, a first rotary drive mechanism, a grinding wheel seat, and a grinding wheel knife repairing device. The end of the wheelholder away from the wheel.

Preferably, the adjustment guide wheel assembly includes an adjustment guide wheel, a second rotary drive mechanism, a guide wheel base and an adjustment guide wheel trimming device, the adjustment guide wheel is pivotally connected to the guide wheel base, the second rotation drive mechanism is installed on the guide wheel base and It is driven and connected with the adjustment guide wheel, and the adjustment guide wheel knife trimming device is installed at one end of the guide wheel seat away from the adjustment guide wheel, and the adjustment guide wheel is opposite to the grinding wheel.

Preferably, the machine tool body is also equipped with a handwheel feed adjustment mechanism, and the handwheel feed adjustment mechanism is drivingly connected with the adjustment guide wheel assembly.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model not only can grind conventional products, but also can grind fine silk workpieces, so that the size range of the grinding workpieces is more refined, the structure is simple, the clamping is convenient, the material is not easy to break and the tool does not need to be retracted, and the work efficiency is high.

Description of drawings

Fig. 1 is the front view of the utility model high-precision centerless grinding machine;

Fig. 2 is a schematic diagram of the positional relationship between the grinding wheel assembly, the workpiece support, and the adjustment guide wheel assembly of the present invention;

Fig. 3 is a structural schematic diagram of the workpiece support of the present invention.

In the figure: 1. Machine tool body; 2. Grinding wheel repairing device; 3. Grinding wheel assembly; 31. Grinding wheel; 32. Grinding wheel seat; 4. Workpiece support; 41. Tool rest; , adjusting screw; 45, adjusting plate; 5, adjusting guide wheel assembly; 51, adjusting guide wheel; 52, guide wheel seat; Knife adjustment mechanism.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The high-precision centerless grinding machine shown in Figure 1-3 includes a machine body 1, a grinding wheel assembly 3, an adjustment guide wheel assembly 5 and a workpiece support 4, the grinding wheel assembly 3 is fixed on the machine body 1, and the adjustment guide wheel assembly 5 is connected to the machine body 1 Sliding fit, the workpiece support 4 is fixed on the end of the adjustment guide wheel assembly 5 close to the grinding wheel assembly 3, the workpiece support 4 includes a knife rest 41, a knife plate 43, a clamp block 42 and an adjustment screw 44, and the knife rest 41 is provided with a knife plate 43 The splitting groove that penetrates, the top two sides of knife rest 41 are separately provided with two described clamping blocks 42, and clamping block 42 is locked on the top of knife rest 41 by adjusting screw 44, and knife plate 43 is positioned at the lower end between two clamping blocks 42, The upper end between the two clamping blocks 42 forms a V-shaped material groove for clamping workpieces.

As a preferred embodiment, the lower ends of the two clamping blocks 42 are also pierced with an adjusting plate 45 .

As a preferred embodiment, the grinding wheel assembly 3 includes a grinding wheel 31, a first rotating drive mechanism, a grinding wheel seat 32, and a grinding wheel knife repairing device 2, the grinding wheel 31 is pivotally connected to the grinding wheel seat 32, the first rotating drive mechanism is installed on the grinding wheel seat 32 and Driven and connected with the grinding wheel 31 , the grinding wheel trimming device 2 is installed at one end of the grinding wheel seat 32 away from the grinding wheel 31 .

As a preferred embodiment, the adjustment guide wheel assembly 5 includes an adjustment guide wheel 51, a second rotary drive mechanism 7, a guide wheel seat 52 and a knife repairing device for the adjustment guide wheel 51, and the adjustment guide wheel 51 is pivotally connected to the guide wheel seat 52, The second rotary drive mechanism 7 is installed on the guide wheel seat 52 and is drivenly connected with the adjustment guide wheel 51. The adjustment guide wheel 51 knife trimming device is installed on one end of the guide wheel seat 52 away from the adjustment guide wheel 51. The adjustment guide wheel 51 is opposite to the grinding wheel 31. .

As a preferred embodiment, the machine tool body 1 is also equipped with a handwheel feed adjustment mechanism 8 , and the handwheel feed adjustment mechanism 8 is drivingly connected with the adjustment guide wheel assembly 5 .

The adjustment screw 44 can make the two clamping blocks 42 open or clamp, so as to be suitable for the blades 43 of different thicknesses. A slide plate is installed at the bottom of the guide wheel seat 52 so as to slide and fit with the machine tool body 1 . The second rotary drive mechanism 7 includes a servo motor and a ball screw. During work, the grinding wheel assembly 3 is fixed, and the workpiece support 4 is placed on the slide plate of the adjustment guide wheel assembly 5. Before the grinding work, the grinding wheel assembly 3 and the adjustment guide wheel assembly 5 Both start to rotate, and the adjustment guide wheel assembly 5 is driven by the servo motor to drive the ball screw to drive the slide plate to move closer to the grinding wheel assembly 3, and the gap is adjusted. Fine workpieces enter the workpiece support 4 through the V-shaped chute and are ground by the grinding wheel 31. The effect of 51 and knife plate 43 micro-inclinations can pull workpiece from the rear end blanking of knife plate 43, thereby carry out next section processing, and machining process can be continuous grinding, need not withdraw a knife.

Specifically, a grinding wheel repairing device 2 is installed on the rear side of the grinding wheel seat 32, and after a certain period of grinding, the grinding wheel 31 is repaired to ensure that the grinding surface of the grinding wheel 31 is stable. The speed of the servo motor is controlled at 0-300rpm, without segment setting, and can be adjusted to the best linear speed. The servo motor is located above the adjustment guide wheel 51, which is easy to install. It is driven by a synchronous belt and can be tensioned by a tensioning device to ensure adjustment. Guide wheel 51 does not vibrate, improves stability. Adjust guide wheel 51 tops and adjust guide wheel 51 trimmer device, carry out sand repair after grinding certain hour, guarantee to adjust guide wheel 51 grinding surfaces stable. The workpiece support 4 is placed between the emery wheel 31 and the adjustment guide wheel 51, and is installed on the slide plate. The distance between the adjustment guide wheel 51 and the adjustment guide wheel 51 can be adjusted to stabilize the workpiece when grinding the workpiece. For different workpieces, the knife plate The thickness of 43 is also different, through design, the thickness of cutter plate 43 can be made thinner and thinner, and stability is good, not easily deformed, thereby can grind finer workpiece.

Grinding methods can be divided into two types: through-grinding and press-grinding.

When pressing and grinding: adjust the gap between the knife plate 43 and the grinding wheel 31 according to the diameter of the workpiece. The wheel feed adjustment mechanism 8 is used to adjust the feed amount, and the adjustment guide wheel 51 is promoted to move forward, extruding the workpiece to contact with the emery wheel 31 for grinding.

Through-type grinding: according to the diameter of the workpiece, adjust the gap between the knife plate 43 and the adjustment guide wheel 51, the knife plate 43 and the grinding wheel 31, adjust the small inclination angle between the adjustment guide wheel 51 and the knife plate 43, and realize the axial feed of the workpiece , put the workpiece on the V-shaped trough, slowly push it into the knife plate 43, and the workpiece will be automatically fed along the axial direction for grinding.

The implementation of the utility model is not limited thereto. According to the above content of the utility model, the utility model can also make other Various forms of modification, replacement or change all fall within the protection scope of the utility model.

Claims (5)

1. A high-precision centerless grinding machine, characterized in that it includes a machine tool body, a grinding wheel assembly, an adjusting guide wheel assembly, and a workpiece support, the grinding wheel assembly is fixed on the machine tool body, the adjusting guide wheel assembly is slidingly fitted with the machine tool body, and the workpiece support is fixed on the adjusting guide wheel The assembly is close to one end of the grinding wheel assembly. The workpiece support includes a knife holder, a knife board, a clamp block and an adjusting screw. The clamping block is locked on the top of the tool holder through the adjusting screw, the knife plate is located at the lower end between the two clamping blocks, and the upper end between the two clamping blocks forms a V-shaped trough for clamping the workpiece. 2. The high-precision centerless grinding machine according to claim 1, characterized in that, the lower ends of the two clamping blocks are also pierced with adjusting plates. 3. The high-precision centerless grinding machine according to claim 1, wherein the grinding wheel assembly comprises a grinding wheel, a first rotating drive mechanism, a grinding wheel seat, and a grinding wheel knife repairing device, the grinding wheel is pivotally connected to the grinding wheel seat, and the first rotating drive mechanism is installed On the grinding wheel base and connected with the grinding wheel drive, the grinding wheel trimming device is installed at one end of the grinding wheel base away from the grinding wheel. 4. The high-precision centerless grinding machine according to claim 3, wherein the adjustment guide wheel assembly comprises an adjustment guide wheel, a second rotary drive mechanism, a guide wheel seat and an adjustment guide wheel knife repairing device, and the adjustment guide wheel is pivotally connected to The guide wheel seat, the second rotation drive mechanism is installed on the guide wheel seat and is connected with the adjustment guide wheel drive, the adjustment guide wheel knife trimming device is installed on one end of the guide wheel seat away from the adjustment guide wheel, and the adjustment guide wheel is opposite to the grinding wheel. 5. The high-precision centerless grinding machine according to any one of claims 1-4, characterized in that the machine body is also equipped with a handwheel feed adjustment mechanism, which is drivingly connected with the adjustment guide wheel assembly.