CN219598157U - Centering type center hole machining device - Google Patents

Abstract

The utility model discloses a centering type center hole machining device which comprises a frame, wherein a platform is arranged at the upper part of the frame, and two opposite clamps for correspondingly clamping two ends of a workpiece are in sliding fit with the two sides of the platform; the table top of the platform is provided with a through groove, the inner side of the frame is provided with a bracket, both sides of the bracket are slidably matched with mounting brackets, the mounting brackets penetrate through the through groove, and the upper part of the mounting brackets is provided with a central hole processing machine head; the opposite clamp comprises a shell, a bidirectional screw rod is rotationally matched with the shell, two opposite thread sections of the bidirectional screw rod are matched with side plates through screw rod nut seats, V-shaped blocks are arranged on opposite sides of the two side plates, and the axis of a workpiece clamped by the two V-shaped blocks coincides with the rotation axis of a cutter of the center hole machining machine head. The utility model has quick and convenient operation, does not need to carry out rotary alignment work on the workpieces when carrying out drilling processing on the workpieces with different specifications, can simultaneously feed and process the central holes at the positions of the two end surfaces of the shaft workpiece, and improves the processing efficiency.

Description

Centering type center hole machining device

Technical Field

The utility model relates to the technical field of machining, in particular to a centering type center hole machining device.

Background

With the development of general crane manufacturing industry in China, the product specification is larger and larger, the size and weight of inner shaft roller parts in the crane are increased, and the requirement on assembly precision is higher and higher based on the consideration of product quality. Because large-tonnage crane transmission shaft workpieces cannot pass through a lathe spindle, and the end face clamping mode of a center chuck is commonly used in the market, the workpiece and the center of a cutter need to be adjusted and aligned, and aiming at workpieces with different specifications, the center of the cutter needs to be adjusted, so that correction and leveling are more troublesome.

Disclosure of Invention

The utility model aims to overcome the existing defects, provides a centering type center hole machining device, is quick and convenient to operate, does not need to perform rotary alignment work on workpieces when the workpieces with different specifications are drilled, can simultaneously feed and machine center holes at two end surfaces of shaft workpieces, improves machining efficiency, and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the centering type center hole machining device comprises a frame, wherein a platform is arranged at the upper part of the frame, opposite clamps for correspondingly clamping two ends of a workpiece are slidably matched with the two sides of the platform, and the two opposite clamps slide relatively or reversely; the table top of the platform is provided with a through groove, the inner side of the frame is provided with a bracket, both sides of the bracket are slidably matched with mounting brackets, the mounting brackets penetrate through the through groove, the upper part of the mounting brackets is provided with a center hole processing machine head, and the frame is provided with a bracket moving power device which can drive the mounting brackets to move and enable the center hole processing machine head to feed and drill center holes on the end face of a workpiece;

the opposite clamp comprises a shell, a bidirectional screw rod is rotationally matched with the shell, a hand wheel is arranged at one end of the bidirectional screw rod, two reverse thread sections of the bidirectional screw rod are matched with side plates through screw nut seats, V-shaped blocks are arranged on opposite sides of the two side plates, and the axis of a workpiece clamped by the two V-shaped blocks coincides with the rotation axis of a cutter of the center hole machining machine head.

Preferably, the bracket moving power device is a ball screw kinematic pair driven by a servo motor, and the bracket is also provided with a sliding rail for the installation bracket to slide.

Preferably, the side of the opposite clamp is also provided with an auxiliary supporting device for lifting the workpiece, the auxiliary supporting device comprises a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is provided with a V-shaped block.

Preferably, the central hole processing machine head comprises a gear motor, and the gear motor drives the drill bit to rotate.

Preferably, a sliding rail for sliding the opposite clamps is arranged at the upper part of the platform.

Compared with the prior art, the utility model has the beneficial effects that: the principle that the axes of the two V-shaped blocks of the opposite clamp are unchanged is utilized, the tool rotation axes of the center hole machining heads are coincident with the axes of the workpieces, the workpieces do not need to be subjected to rotation alignment when the workpieces with different specifications are drilled, the center hole machining operation of the workpieces with various specifications is applicable, the machining standard does not need to be repeatedly adjusted, the operation is rapid and convenient, the center hole machining heads on two sides can simultaneously feed and machine center holes at two end surfaces of the shaft workpieces, the machining efficiency is improved, the center hole machining heads on one side can also work, and the center hole machining head is applicable to the center hole machining operation of the shaft workpieces with different working condition requirements.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic view of a partial structure of the present utility model.

In the figure: 1 center hole processing machine head, 2 installing support, 3 frames, 4 platforms, 5 support moving power devices, 6 opposite clamps, 6.1V blocks, 6.2 side plates, 6.3 bidirectional screw rods, 6.4 shells and 7 auxiliary supporting devices.

Detailed Description

In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present utility model, and in order to facilitate description of the present utility model, it is not indicated or implied that the device or element referred to must have a specific azimuth:

referring to fig. 1-2, the present utility model provides a technical solution: the centering type center hole machining device comprises a frame 3, wherein a platform 4 is arranged at the upper part of the frame 3, opposite clamps 6 for correspondingly clamping two ends of a workpiece are slidably matched with two sides of the platform 4, the two opposite clamps 6 slide relatively or reversely, the centering type center hole machining device can be suitable for shaft workpieces with different lengths, and the distance between the two opposite clamps 6 is adjusted according to the lengths of the workpieces; the table top of the platform 4 is provided with a through groove, the inner side of the frame 3 is provided with a bracket, both sides of the bracket are slidably matched with mounting brackets 2, the mounting brackets 2 penetrate through the through groove, the upper part of the mounting brackets is provided with a center hole processing machine head 1, the frame 3 is provided with a bracket moving power device 5 which can drive the mounting brackets 2 to move and enable the center hole processing machine head 1 to feed a center hole of a workpiece, and the bracket moving power device 5 drives the mounting brackets 2 to move so as to enable the center hole processing machine head 1 to feed the center hole of the workpiece;

specifically, the opposite clamp 6 comprises a shell 6.4, a bidirectional screw rod 6.3 is rotationally matched with the shell 6.4, a hand wheel is arranged at one end of the bidirectional screw rod 6.3, two opposite thread sections of the bidirectional screw rod 6.3 are matched with side plates 6.2 through screw rod nut seats, V-shaped blocks 6.1 are arranged on opposite sides of the two side plates 6.2, workpiece axes clamped by the two V-shaped blocks 6.1 coincide with cutter rotation axes of the central hole machining machine head 1, the bidirectional screw rod 6.3 rotates and drives the two V-shaped blocks 6.1 to move relatively or reversely, so that workpieces with different specifications are clamped, and when the cutter rotation axes of the central hole machining machine head 1 coincide with the workpiece axes, the workpieces with different specifications do not need to be subjected to rotary alignment work;

further, the bracket moving power device 5 is a ball screw kinematic pair driven by a servo motor, a sliding rail for the installation bracket 2 to slide is also arranged on the bracket, and the servo motor is used for controlling the opposite feeding cutting depth;

the side edges of the opposite clamps 6 are also provided with auxiliary supporting devices 7 for lifting workpieces, the auxiliary supporting devices 7 comprise hydraulic cylinders, the telescopic ends of the hydraulic cylinders are provided with V-shaped blocks or flat plates, the auxiliary supporting devices 7 play a role in lifting the workpieces, the two opposite clamps 6 are provided with auxiliary supporting devices 7 for lifting the two ends of the workpieces, the starting positions of the workpieces are placed on the shell 6.4 due to the fact that the workpieces are heavier, the workpieces can be lifted to generate downward pressure on the V-shaped blocks 6.1 during clamping operation, and the fact that large force is needed when a hand wheel of the opposite clamps 6 is operated can be avoided through the arrangement of the auxiliary supporting devices 7;

in addition, the center hole processing head 1 includes a gear motor that drives the drill to rotate; the upper part of the platform 4 is provided with a sliding rail for the opposite clamp 6 to slide.

The utility model is not described in detail in the prior art.

Claims (5)

1. The utility model provides a centering type centre bore processingequipment, includes frame (3), its characterized in that: the upper part of the frame (3) is provided with a platform (4), two sides of the platform (4) are respectively and slidably matched with opposite clamps (6) for correspondingly clamping two ends of a workpiece, and the two opposite clamps (6) slide oppositely or reversely; the table top of the platform (4) is provided with a through groove, the inner side of the frame (3) is provided with a bracket, both sides of the bracket are slidably matched with mounting brackets (2), the mounting brackets (2) penetrate through the through groove, the upper part of the mounting brackets is provided with a center hole machining machine head (1), and the frame (3) is provided with a bracket moving power device (5) which can drive the mounting brackets (2) to move and enable the center hole machining machine head (1) to feed a workpiece end face to drill a center hole;

the opposite clamp (6) comprises a shell (6.4), a bidirectional screw rod (6.3) is rotationally matched with the shell (6.4), a hand wheel is arranged at one end of the bidirectional screw rod (6.3), two reverse thread sections of the bidirectional screw rod (6.3) are matched with side plates (6.2) through screw rod nut seats, V-shaped blocks (6.1) are arranged on opposite sides of the two side plates (6.2), and workpiece axes clamped by the two V-shaped blocks (6.1) are coincident with a cutter rotation axis of the center hole machining machine head (1).

2. A centering center hole machining device according to claim 1, wherein: the bracket moving power device (5) is a ball screw kinematic pair driven by a servo motor, and a sliding rail for the installation bracket (2) to slide is also arranged on the bracket.

3. A centering center hole machining device according to claim 1, wherein: the side of opposition anchor clamps (6) still is equipped with auxiliary stay device (7) that are used for lifting the work piece, and auxiliary stay device (7) include the pneumatic cylinder, and the flexible end of pneumatic cylinder is equipped with V type piece.

4. A centering center hole machining device according to claim 1, wherein: the center hole machining machine head (1) comprises a gear motor, and the gear motor drives the drill bit to rotate.

5. A centering center hole machining device according to claim 1, wherein: the upper part of the platform (4) is provided with a sliding rail for the opposite clamp (6) to slide.