CN201940646U - Numerical control drilling machine for piston dowel holes - Google Patents

Abstract

The utility model discloses a numerical control drilling machine for piston dowel holes, which is provided with a servo rotary mechanism and a piston jacking mechanism coaxially and oppositely arranged. A positioning clamp is arranged on a rotary shaft of the servo rotary mechanism, a piston is fixed into the positioning clamp, a jacking pin of the piston jacking mechanism is aligned to the end of the piston, a single-shaft servo feeding unit is arranged on the side of the servo rotary mechanism, and the moving direction of the single-shaft servo feeding unit is parallel to the axis of the servo rotary mechanism. A drilling device is arranged on the single-shaft servo feeding unit and comprises a drilling spindle, and a drilling tool is arranged at the end of the drilling spindle connected with a power mechanism. The drilling tool is aligned to a dowel hole processing position of the piston, the piston is driven by the servo rotary mechanism to rotate and be positioned at an optional angle, and various dowel holes on the piston can be processed by means of the drilling tool fixed on the single-shaft servo feeding unit after precision feeding and moving of the single-shaft servo feeding unit. The numerical control drilling machine is suitable for processing piston dowel holes in various specifications, and drilling precision and drilling efficiency can be improved.

Description

CNC piston pin hole drilling machine

technical field

The utility model relates to the technical field of drilling machine tools, in particular to a numerically controlled piston pin hole drilling machine.

Background technique

As shown in FIG. 1 , there are two pin holes 51 on the piston 5 that need to be processed, because the two pin holes 51 are located on the piston cylindrical surfaces that are not on the same plane. The existing technology cannot utilize the existing drilling machine tools to process at the same time. The piston can only be clamped and fixed in two parts and then processed on the drill machine. The two clamping processes will easily lead to inaccurate angles between the two pin holes, and Since the distance and angle between the two pin holes on the piston have various specifications, different clamping and positioning tools need to be replaced when machining pin holes with different angles, so the existing piston pin holes have low machining accuracy and low machining efficiency. .

Contents of the invention

The purpose of the utility model is to provide a numerical control piston pin hole drilling machine with high drilling precision and high efficiency.

The utility model adopts the following schemes to realize: a numerically controlled piston pin hole drilling machine, which is provided with a frame, and a coaxial and relatively arranged servo rotation mechanism and a piston top tightening mechanism are arranged on the frame, and a rotating shaft of the servo rotation mechanism is provided with There is a positioning fixture, the piston is fixed in the positioning fixture, the top pin of the piston tightening mechanism is aligned with the end of the piston, the side of the servo rotation mechanism is equipped with a single-axis servo feed unit, and the movement direction of the single-axis servo feed unit is consistent with the servo rotation The axis of the mechanism is parallel, and the single-axis servo feed unit is equipped with a drilling device. The drilling device includes a drilling spindle. The shaft end of the drilling spindle is equipped with a drilling tool. The drilling spindle is connected to the power mechanism, and the drilling tool is aligned with the piston. During processing, the thimble of the piston tightening mechanism presses against the end of the piston, and the power mechanism drives the drilling spindle and the drilling tool to rotate, so that the drilling tool feeds to process the first pin hole, and drills after processing. The hole tool is retracted, the servo rotation mechanism drives the rotating shaft and the piston on it to rotate, and the single-axis servo feed unit feeds to align the drilling tool with the second pin hole processing position, and then feeds the drilling tool to process the second pin hole .

The drilling spindle adopts a high-speed drilling spindle.

The drilling tool is an alloy drill bit.

The beneficial effects of the utility model are: adopting the above-mentioned structure, the numerical control system equipped in the machine tool controls the servo rotation mechanism to drive the piston fixed on it to rotate, so as to realize the processing of pin holes at different positions on the piston, and the numerical control system can control the servo rotation mechanism Drive the piston to rotate and position at any angle, and the single-axis servo feed unit can feed and move accurately, so that the drilling tool fixed on the single-axis servo feed unit can process different pin holes on the piston; the distance between the pin holes When the angle and angle are changed, it can be realized only by inputting different parameters in the numerical control system, which is suitable for processing piston pin holes of various specifications. The utility model adopts numerical control precision control to improve the drilling precision and drilling efficiency, reduces the drilling time of the piston pin hole, and can reduce the processing cost.

Description of drawings

Now in conjunction with accompanying drawing, the utility model is further elaborated:

Fig. 1 is the structural representation of the utility model piston pin hole;

Fig. 2 is a top view schematic diagram of the utility model numerical control piston pin hole drilling machine.

Detailed ways

As shown in Figure 2, the utility model is provided with a frame 1, and the frame 1 is provided with a coaxial and relatively arranged servo rotation mechanism 2 and a piston tightening mechanism 3, and a positioning fixture is provided on the rotating shaft 21 of the servo rotation mechanism 2. 4. The piston 5 is fixed in the positioning fixture 4, the thimble 31 of the piston tightening mechanism 3 is aligned with the end of the piston 5, the side of the servo rotation mechanism 2 is provided with a single-axis servo feed unit 6, and the single-axis servo feed unit 6 The direction of motion is parallel to the axis of the servo rotating mechanism 2, and the single-axis servo feed unit 6 is provided with a drilling device 7, the drilling device 7 includes a drilling main shaft 71, and the shaft end of the drilling main shaft 71 is provided with a drilling tool 72, Drilling main shaft 71 connects power mechanism 73, and drilling tool 72 is aligned with a pin hole 51 processing position of piston 5; 71 and the drilling tool 72 are rotated to make the drilling tool 72 feed and process the first pin hole 51. After processing, the drilling tool 72 is retreated, and the servo rotating mechanism 2 drives the rotating shaft 21 and the piston 5 on it to rotate, and the single-axis servo advances Feed to the unit 6 so that the drilling tool 72 is aligned with the machining position of the second pin hole 51, and the drilling tool 72 is then fed to process the second pin hole 51.

The drilling spindle 71 adopts a high-speed drilling spindle.

The drilling tool 72 is an alloy drill bit.

The utility model can not only process piston pin holes, but also can process and cut other similar workpieces by changing the tool and the fixture.

Claims (2)

1. numerical control piston pin hole drilling machine, it is characterized in that: it is provided with frame, frame is provided with the servo rotating mechanism and the piston jacking mechanism of coaxial and positioned opposite, the rotating shaft of servo rotating mechanism is provided with positioning fixture, piston is fixed in the positioning fixture, the thimble of piston jacking mechanism is aimed at pistons end, the side of servo rotating mechanism is provided with single shaft servo feed unit, the direction of motion of single shaft servo feed unit is parallel with servo rotating mechanism axis, single shaft servo feed unit is provided with drilling equipment, drilling equipment comprises drill spindle, the axle head of drill spindle is provided with drilling tool, drill spindle connects actuating unit, and drilling tool is aimed at a pin hole Working position of piston; Add man-hour, the thimble of piston jacking mechanism holds out against pistons end, actuating unit drives drill spindle and drilling tool rotates, make the drilling tool feeding process first pin hole, processing back drilling tool is return, servo rotating mechanism drive rotating shaft and on piston rotation, the unit feeding of single shaft servo feed makes drilling tool aim at second pin hole Working position, drilling tool is second pin hole of feeding processing again.

2. numerical control piston pin hole drilling machine according to claim 1 is characterized in that: described drilling tool is an alloy bit.

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