CN201077002Y - Novel fixture for plane grinder cylindrical grinding - Google Patents

Abstract

The utility model discloses a new external grinding fixture for surface grinders, belonging to the technical field of grinder manufacturing. The supports of the utility model are left and right supports, a center is arranged on the upper part of the left support through a bearing with the bottom connected with a screw, the other end of the screw is matched with a nut fixed on the bottom of the support, and the center is connected with the rotating shaft of the motor through a transmission mechanism; a clamping device connected with the center is arranged on the upper part of the right support, and the bottom of the clamping device is connected with the screw while the other end connected with the nut fixed on the support; the motor and the left and right supports are arranged on the worktable, and the centerline connecting the centers on the left and right supports is parallel with the x axis direction of the worktable. The utility model has the advantages of simple structure, convenient application and reasonable design due to the universal coupling transmission mechanism replacing the driving mode of belt drive in the traditional grinders.

Description

A New Fixture for Cylindrical Grinding of Surface Grinder

technical field

The utility model relates to a fixture for fixing workpieces for a grinding machine, in particular to a new type of fixture for cylindrical grinding of a plane grinder.

Background technique

Grinding is generally used as the final processing technology for precision workpiece forming, and the precision workpiece can obtain the required dimensional accuracy and surface finish through grinding. In the grinding technology, according to the different shapes of workpieces such as flat plates and shafts, the methods of surface grinding and cylindrical grinding are respectively used, and they need to be processed on the surface grinder and the cylindrical grinder respectively. At present, there is no suitable grinding machine. Grinding technology can process flat and shaft workpieces on one grinding machine at the same time.

Contents of the invention

Aiming at the deficiencies of the existing design, the utility model provides a new fixture with simple structure and reasonable design, which uses a surface grinder to grind the shaft workpiece.

The utility model is achieved through the following technical solutions:

The utility model comprises a motor, a bracket, a thimble, a clamping mechanism, a nut and a screw rod. There are two brackets, a thimble, a screw rod and a nut. On one of the brackets, the thimble is installed on the upper part of the corresponding bracket through a bearing. The bottom is connected with the screw, and the screw is matched with the nut fixed on the bracket. The other bracket is equipped with a clamping mechanism that controls the lateral movement of the thimble. The bottom of the clamping mechanism is connected with the screw, and the screw is matched with the nut fixed on the bracket. Cooperate. The transmission mechanism is respectively connected with the rotating shaft of the motor and the thimble on the bracket, the motor and the bracket are installed on the workbench, and the line connecting the center of the thimble is parallel to the x-axis direction of the workbench.

The transmission mechanism is a universal joint transmission mechanism.

The clamping mechanism is composed of a hollow moving rod with external threads, a positioning block with internal threads and a handle. The thimble is sleeved in the hollow cavity of the moving rod. The bottom is connected with the screw rod, and the end of the moving rod is provided with a handle.

The utility model clamps the shaft workpiece to be processed by the thimble, fixes the workpiece on the workbench and moves with the workbench. The universal coupling transmission mechanism transmits the power of the motor to the thimble, and the thimble drives the shaft workpiece to rotate. The outer edge of the grinding wheel grinds the surface of the shaft workpiece. The grinding track is a point or a line. The axis of the grinding wheel and the shaft The axis of the class workpiece is not parallel in space, but at a certain angle. In this fixture, the universal coupling transmission mechanism is used to replace the transmission mode of the traditional grinding machine, which makes the installation position of the motor more flexible. The design of the supporting bearing and the screw rod of the clamping mechanism can make the thimble move up and down, and the workpiece can be clamped conveniently. . The application of this fixture enables the surface grinder to process both flat workpieces and shaft workpieces, which improves the processing range of the grinder and reduces the purchase cost of the grinder, thereby reducing the production cost of the enterprise and improving the market competitiveness of the enterprise. Convenient, reasonable design and other advantages.

Description of drawings

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

Fig. 2 is a schematic diagram of the clamping mechanism of the present invention;

Fig. 3 is a side view of the grinding wheel and the workpiece when the utility model is in use.

In the figure, 1. motor, 2. universal coupling transmission mechanism, 3. bracket, 4. bearing, 5. thimble, 6. shaft workpiece, 7. grinding wheel, 8. screw rod, 9. nut, 10. working Platform, 11, moving rod, 12, positioning block, 13, handle.

Detailed ways

Embodiment: Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1 and 2, the utility model includes a motor 1, a support 3, a thimble 5, a clamping mechanism, a nut 9 and a screw 8, and the support 3 is a left and right support, and the thimble 5 is installed on the The upper part of the left bracket 3, the bottom of the bearing 4 is connected with the screw 8, the screw 8 cooperates with the nut 9 fixed on the bracket 3, the thimble 5 on the left bracket is connected with the rotating shaft of the motor 1 through the universal coupling transmission mechanism 2 . The right bracket is provided with a clamping mechanism for controlling the lateral movement of the thimble. The clamping mechanism is composed of a hollow and externally threaded moving rod 11, a positioning block 12 with internal threads and a handle 13. The thimble is sleeved on the moving rod. In the hollow cavity of 11, the end of the moving rod 11 is provided with a handle 13, the positioning block 12 is matched with the moving rod 11 through threads, the bottom of the positioning block is connected with the screw rod 8, and the screw rod cooperates with the nut 9 fixed on the right bracket, The motor 1 and the left and right brackets are installed on the workbench 10 , and the line connecting the centers of the thimbles arranged on the left and right brackets is parallel to the x-axis direction of the workbench 10 .

As shown in Figure 3, when in use, put the two brackets on the horizontal workbench, rotate the adjustment screw, and measure to make the height of the thimbles on the two brackets equal and keep them on a horizontal line. Adjust the relative position of the two brackets so that they can be put into the workpiece, and the line connecting the center of the thimble is parallel to the x-axis direction of the horizontal workbench. The diameter range of the shaft workpiece 6 cannot exceed twice the height distance of the thimble, and the center holes are processed on the two end faces of the shaft workpiece 6 in advance, and the center hole of the shaft workpiece is aligned with the thimble, and the clamping mechanism is rotated to make the thimble extend. Long, for clamping shaft workpieces. The grinding wheel 7 moves along the y-axis and the z-axis, so that the outer edge of the grinding wheel 7 is in contact with the outer surface of the shaft workpiece 6 .

Claims (3)

1. A new fixture for cylindrical grinding of a surface grinder, including a motor, a bracket, a thimble, a clamping mechanism, a screw and a nut, the motor and the bracket are installed on the workbench, and the brackets are left and right brackets, and it is characterized in that, The upper part of the left bracket is equipped with a thimble through the bearing, the bottom of the bearing is connected with the screw, the other end of the screw is matched with the nut fixed at the bottom of the bracket, and the thimble is connected with the rotating shaft of the motor through the transmission mechanism; Connected clamping mechanism, the bottom of the clamping mechanism is connected with the screw rod, the other end of the screw rod is matched with the nut fixed on the bracket, and the connecting line of the centers of the thimbles on the left and right brackets is parallel to the x-axis direction of the workbench. 2. The new fixture for cylindrical grinding of a surface grinder according to claim 1, wherein the transmission mechanism is a universal coupling transmission mechanism. 3. The new fixture for cylindrical grinding of a surface grinder according to claim 1, wherein the clamping mechanism is composed of a hollow moving rod with external threads, a positioning block with internal threads and a handle, and the thimble Covered in the hollow cavity of the moving rod, the positioning block and the moving rod are matched through threads, the bottom of the positioning block is connected with the screw rod, and the end of the moving rod is provided with a handle.

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