Novel deep hole machining monitoring device of numerical control deep hole drilling and boring machine

Abstract

The utility model discloses a novel deep hole machining monitoring device for a numerical control deep hole drilling and boring machine, which relates to the technical field of deep hole machining, comprises a machine body and a spindle box arranged at one end of the machine body, and is characterized in that a drill rod box is mounted at the other end of the machine body in a sliding manner, a drilling and boring rod is connected onto the drill rod box, and a three-jaw chuck is mounted on an output shaft of the spindle box; the free end of the drilling and boring rod is detachably connected with a sleeve, a target ball is arranged at the axis of the sleeve, a light hole is coaxially formed in an output shaft of the spindle box, an optical system is arranged in the spindle box, and the transmitting end of the optical system penetrates through the light hole to be matched with the receiving end at the center of the target ball. According to the utility model, the axial lead of the drilling and boring rod and the rotating center line of the workpiece are collinear, the light spot position information received by the position sensor is collected based on the optical principle, and the offset of the drilling and boring rod is calculated according to the relationship between the light spot position change and the target ball angle change, so that the purpose of real-time monitoring is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep hole machining technical field, concretely relates to a novel numerical control deep hole drilling and boring machine deep hole machining monitoring device. BACKGROUND

[0002] For cannon barrel parts, its quality directly determines the shooting accuracy and performance power of the gun, and it is also the part with the highest technical content and the most difficult processing in the whole gun system, when the deep hole drilling and boring machine drills and bores the inner hole of the workpiece, it is difficult to observe the processing part and the tool condition, and the hole axis radial deviation is caused, thereby causing the scrapping loss of the part, therefore, real-time monitoring of the deep hole and tool error, finding the deflection and timely correcting are the major problems to be solved and the technical problems that have not been solved. UTILITY MODEL CONTENT

[0003] The utility model discloses a novel numerical control deep hole drilling and boring machine deep hole machining monitoring device, which aims to solve the problem of real-time monitoring of the deep hole and tool error in the above background technology.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme: a novel numerical control deep hole drilling and boring machine deep hole machining monitoring device, including the bed and the main shaft box fixedly installed at one end of the bed, the both sides of the other end of the bed are provided with slide rails, the slide rails on the both sides are provided with sliding blocks, the sliding blocks are provided with the feeding drag plate, the drilling rod box is fixedly installed on the feeding drag plate, the drilling and boring rod is connected with the drilling rod box, the first bracket for supporting the drilling and boring rod is further arranged on the feeding drag plate, the three-jaw chuck for clamping the workpiece is installed on the output shaft of the main shaft box, the second bracket for supporting the workpiece is fixedly installed on the bed, the sleeve is detachably connected with the free end of the drilling and boring rod, and the target ball is arranged at the axis of the sleeve, the light transmission hole is coaxially arranged on the output shaft of the main shaft box, the optical system is arranged in the main shaft box, and the emission end of the optical system is matched with the receiving end at the center of the target ball through the light transmission hole.

[0005] Further, the through hole is coaxially arranged with the light transmission hole, the optical system is arranged in the through hole, the optical system comprises a laser emitter, a beam splitter and a position sensor, the beam splitter is used for splitting the laser beam, thereby forming the transmission beam and the reflection beam, and the position sensor is arranged on the light path of the transmission beam and the reflection beam and used for detecting the positions of the transmission beam and the reflection beam.

[0006] Further, the target ball is designed in a triangular prism structure.

[0007] The utility model has the following beneficial effects:

[0008] The utility model provides a novel numerical control deep hole drilling and boring machine deep hole processing monitoring device, realizes the rotation center line of work piece and the axial line of drilling and boring bar through the design of mechanical structure, gathers the light point position information received by position sensor based on optical principle, and calculates the offset of drilling and boring bar through the relation of light spot position change and target ball angle change, thereby reaches the purpose of deep hole drilling and boring machine online monitoring, the utility model discloses simple structure, convenient installation has reduced manufacturing cost, improved use efficiency, and wide application is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is whole structure schematic diagram of the utility model;

[0010] Fig. 2 It is system light path diagram of optical system in the utility model;

[0011] In the drawing: 1, bed body;2, drill rod box;3, drilling and boring bar;4, first bracket;5, main shaft box;6, three jaw chuck;7, second bracket;8, sleeve;9, target ball;10, laser emitter;11, beam splitter;12, position sensor. DETAILED DESCRIPTION

[0012] As Figs. 1-2 Shown, a novel numerical control deep hole drilling and boring machine deep hole processing monitoring device, including bed body 1 and fixed installation in the main shaft box 5 of bed body 1 one end, the both sides of the other end of bed body 1 are provided with slide rail, both sides slide rails all are provided with slide block, and the slide block between is provided with feeding drag plate, and the feeding drag plate is fixedly installed with drill rod box 2, and the drill rod box 2 is connected with drilling and boring bar 3, and the feeding drag plate still is equipped with first bracket 4 for supporting drilling and boring bar 3, and the output shaft of main shaft box 5 is installed with three jaw chuck 6 for clamping work piece, and three jaw chuck 6 can exert strong clamping force to clamp the work piece to be processed and process;The second bracket 7 for supporting work piece is fixedly installed on bed body 1, and the free end of drilling and boring bar 3 is detachably connected with sleeve 8, and the axial center of sleeve 8 is equipped with target ball 9, and target ball 9 is three prism structure design, and the output shaft of main shaft box 5 is coaxially provided with light transmission hole, and the inside of main shaft box 5 is equipped with optical system, and the emission end of optical system passes through light transmission hole and is matched with the receiving end of target ball 9 center place;Sleeve 8 is used for protecting light path, prevents cutting debris and refrigerant from blocking light, and influences monitoring effect.

[0013] The main shaft box 5 is provided with a through hole coaxial with the light transmission hole, and the optical system is arranged in the through hole, and the optical system comprises a laser emitter 10, a beam splitter 11 and a position sensor 12, the laser emitter 10 is fixed by a positioning pin, so as to ensure that the laser beam passes through the rotation center of the output shaft of the main shaft box 5, the beam splitter 11 is used for splitting the laser beam, thereby forming a transmission beam and a reflection beam, and the position sensor 12 is arranged on the light path of the transmission beam and the reflection beam and used for detecting the positions of the transmission beam and the reflection beam; in the machining process, when the axis of the drilling and boring rod 3 is not in the original correct position, the light spot on the position sensor 12 will change, and the measured value indirectly reflects the accuracy of the hole, so that the on-line monitoring in deep hole machining is realized.

[0014] The specific operation process of the utility model is as follows:

[0015] Firstly, the device is debugged and calibrated, an operator clamps one end of a workpiece by using a three-jaw chuck 6, the position of the three-jaw chuck 6 is repeatedly adjusted to ensure that the rotation center of the three-jaw chuck 6 is concentric with the outer circle of the workpiece, the three-jaw chuck 6 is installed on the output shaft of the main shaft box 5, the rotation center of the output shaft of the main shaft box 5 is ensured to be concentric with the outer circle of the workpiece according to the outer circle of the clamped part of the workpiece, and the accuracy is controlled to be between 0.05-0.15mm; the second bracket 7 is accurately positioned and fixed by using a dial gauge, the other end of the workpiece is supported by the second bracket 7, and meanwhile, the target ball 9 is arranged coaxially with the outer circle of the workpiece.

[0016] At this time, the laser emitter 10 is started to emit a high-frequency pulse laser beam, and a visible beam is formed in the air, when the beam irradiates on the target ball 9, since the target ball 9 is a three-prism structure, the target ball 9 will reflect a laser signal parallel to the incident light, the laser beam is split into two beams by the beam splitter 11, which are a reflection beam transmitted to the position sensor 12 and a transmission beam returned to the laser emitter 10, whether the workpiece is aligned is detected by the transmission beam; after the alignment is completed, the position of the incident light point of the reflection beam on the position sensor 12 is taken as a measurement reference; when the workpiece to be machined is machined, if the drilling and boring rod 3 deviates, correspondingly, the position of the target ball 9 will change, when the target ball 9 rotates by a certain angle, the displacement Δd between the returned beam and the incident beam is generated, correspondingly, the position of the incident light point on the position sensor 12 will change, based on the electric signal quantity of the change of the light point position detected from the origin, after collection and processing, the electric signal quantity is sent to the computer through the controller to be displayed, and the monitoring work of the light point position is completed under the support of the computer software.

Claims

1. A novel numerical control deep hole drilling and boring machine deep hole processing monitoring device, comprising a machine body (1) and a spindle box (5) fixedly installed at one end of the machine body (1), characterized in that, The both sides of the other end of the bed body (1) are provided with slide rails, and the slide rails are provided with sliding blocks, and the sliding blocks are provided with a feeding carriage, and the feeding carriage is fixedly provided with a drill rod box (2), and the drill rod box (2) is connected with a drill and boring rod (3), and the feeding carriage is further provided with a first bracket (4) for supporting the drill and boring rod (3), and the output shaft of the spindle box (5) is provided with a three-jaw chuck (6) for clamping workpieces, and the bed body (1) is fixedly provided with a second bracket (7) for supporting workpieces, and the free end of the drill and boring rod (3) is detachably connected with a sleeve (8), and the sleeve (8) is provided with a target ball (9) at the axis, and the output shaft of the spindle box (5) is coaxially provided with a light transmission hole, and the inside of the spindle box (5) is provided with an optical system, and the emission end of the optical system is matched with the receiving end at the center of the target ball (9) through the light transmission hole.

2. The deep hole machining monitoring device of the novel numerical control deep hole drilling and boring machine according to claim 1, characterized in that, The spindle box (5) is provided with a through hole, and the through hole is coaxially arranged with the light transmission hole, and the optical system is arranged in the through hole, and the optical system comprises a laser emitter (10), a beam splitter (11) and a position sensor (12), the beam splitter (11) is used for splitting the laser beam to form a transmission beam and a reflection beam, and the position sensor (12) is located on the light path of the transmission beam and the reflection beam to detect the positions of the transmission beam and the reflection beam.

3. The deep hole machining monitoring device of the novel numerical control deep hole drilling and boring machine according to claim 1, characterized in that, The target ball (9) is designed in a triangular prism structure.

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