Special equipment for machining center hole

Abstract

The utility model discloses special equipment for machining a central hole, which comprises a lathe bed, a main shaft box is arranged at one end of the lathe bed, and the main shaft box is connected with a power source; the chuck is arranged on the output shaft of the spindle box; the guide rail is arranged on the bed surface of the bed body; the center frame is arranged in the middle of the lathe bed, and the bottom of the center frame is slidably connected to the guide rails. The feeding tailstock is arranged at the tail part of the lathe bed, and the bottom of the feeding tailstock is movably arranged on the guide rail; the drill bit is detachably mounted on the feeding tailstock, and the position of the drill bit corresponds to that of the center frame; wherein the centers of the chuck, the center frame and the drill bit are on the same straight line.

Description

Technical Field

[0001] This utility model relates to the technical field of center hole processing equipment, and in particular to a special equipment for processing center holes. Background Technology

[0002] Before machining mechanical parts, center holes for positioning must be machined at both ends or one end of the workpiece. First, the blank is turned to make the outer surface smooth. Then, the center hole is usually machined using a conventional lathe or drilling machine. Since the workpiece is stationary and the lathe spindle rotates for machining, clamping, fastening, and alignment are required, which is time-consuming and labor-intensive. Moreover, the coaxiality between the machined center hole and the axis of the workpiece is poor, which will affect the accuracy of subsequent machining of the mechanical parts. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a special device for machining center holes.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A special device for machining center holes, comprising:

[0006] The bed has a spindle box at one end, which is connected to the power source.

[0007] The chuck is mounted on the output shaft of the spindle box.

[0008] Guide rails are installed on the bed surface of the bed frame;

[0009] The center frame is located in the middle of the bed, and its bottom is slidably connected to the guide rail;

[0010] The feed tailstock is located at the tail of the bed, and its bottom is movably mounted on the guide rail.

[0011] The drill bit is detachably mounted on the feed tailstock, and its position corresponds to that of the center rest.

[0012] The centers of the chuck, center rest, and drill bit are all on the same straight line.

[0013] The power source is an electric motor, which is connected to the input shaft of the spindle box through a transmission assembly.

[0014] The central frame includes:

[0015] The base is slidably connected to the guide rail;

[0016] A ring-shaped frame is mounted on the base;

[0017] The ring frame has several screw holes evenly distributed on it, and an adjusting contact is installed on each screw hole. The tail of the adjusting contact is a spherical structure.

[0018] The beneficial effects of this utility model are: This utility model is a special equipment for machining center holes with a simple structure and low manufacturing cost. The workpiece can be either a blank or a pre-made blank. It mainly solves the problem of machine tools being unable to machine large diameters (φ100~φ200) and long rods on normal machine tools. This single, dedicated equipment solves the bottleneck problem of single-process machining, and also addresses the issues of poor coaxiality and low machining efficiency in machining center holes on lathes and drilling machines. This utility model is a special equipment for machining center holes where the workpiece rotates while the drill bit does not, it can machine a wide range of workpiece diameters, and it can ensure the coaxiality of the center hole and the axis of the workpiece. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the central frame of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0022] like Figure 1 As shown, a special device for machining center holes includes: a bed 2, one end of which is a spindle box, which is connected to a power source 1; a chuck 8, which is mounted on the output shaft of the spindle box; a guide rail 3, which is mounted on the bed surface of the bed 2; a center rest 5, which is mounted in the middle of the bed 2 and whose bottom is slidably connected to the guide rail 3; a feed tailstock 4, which is mounted at the tail of the bed 2 and whose bottom is movably mounted on the guide rail 3; and a drill bit 9, which is detachably mounted on the feed tailstock 4 and whose position corresponds to the center rest 5; wherein the centers of the chuck 8, the center rest 5, and the drill bit 9 are on the same straight line.

[0023] like Figure 1 As shown, power source 1 is a motor, which is connected to the input shaft of the spindle box through a transmission assembly.

[0024] like Figure 1 and Figure 2As shown, the center frame 5 includes: a base, which is slidably connected to the guide rail 3; and an annular frame, which is set on the base; wherein, a number of screw holes are evenly distributed on the annular frame, and an adjusting contact 6 is installed on each screw hole, the tail of the adjusting contact 6 being a spherical structure.

[0025] In use, this utility model first calibrates the center frame 5, chuck 8, and drill bit 9 using a standard measuring bar of the same specification, ensuring that the centers of the three are on the same straight line. Then, based on the length of the workpiece 7, the length direction of the workpiece 7 can be adjusted through the center frame 5, feed tailstock 4, and slide rail 3 (when processing non-standard specification bars, the approximate center position can be determined first based on the standard measuring bar, and then fine-tuned using the adjusting contact 6, which has a scale that can be adjusted according to the scale). The diameter direction of the workpiece 7 can be positioned and clamped through the center frame 5 and chuck 8. In the bed design, the centers of chuck 8 and drill bit 9 are on the same straight line, thus ensuring the coaxiality of drill bit 9 and workpiece 7. After the workpiece 7 is clamped, motor 1 is turned on, and motor 1 drives the workpiece 7 to rotate for operation, thus realizing the machining of the center hole.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special equipment for machining center holes, characterized in that, include: The bed (2) has a spindle box at one end, which is connected to the power source (1); The chuck (8) is mounted on the output shaft of the spindle box; Guide rail (3) is set on the bed surface of the bed (2); The center frame (5) is located in the middle of the bed (2), and its bottom is slidably connected to the guide rail (3); The feed tailstock (4) is located at the tail of the bed (2), and its bottom is movably mounted on the guide rail (3); The drill bit (9) is detachably mounted on the feed tailstock (4), and its position corresponds to that of the center rest (5); The centers of the chuck (8), center frame (5), and drill bit (9) are on the same straight line.

2. The special equipment for machining center holes according to claim 1, characterized in that, The power source (1) is an electric motor, which is connected to the input shaft of the spindle box through a transmission assembly.

3. The special equipment for machining center holes according to claim 1, characterized in that, The central frame (5) include: The base is slidably connected to the guide rail (3); A ring-shaped frame is mounted on the base; Among them, a number of screw holes are evenly distributed on the ring frame, and an adjusting contact (6) is installed on each screw hole. The tail of the adjusting contact (6) is a spherical structure.

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