阅读说明：本技术 一种盲孔加工生产线 (Blind hole machining production line ) 是由 罗有旺 顾志辉 许冠 梁翱 罗烁鑫 胡建武 毛卫东 于 2021-08-25 设计创作，主要内容包括：本发明提供一种盲孔加工生产线,包括：盲孔加工机构；用于将工件输送至盲孔加工机构的对中送料设备一；用于对盲孔加工机构输出的工件进行输送的对中送料设备二；入料架；以及出料架；对中送料设备一与盲孔加工机构的入口端相对,对中送料设备一可高度调节并与盲孔加工机构的入口端同一水平线；对中送料设备二与盲孔加工机构的出口端相对,对中送料设备二可高度调节并与盲孔加工机构的出口端同一水平线；入料架设置在对中送料设备一的侧部,出料架设置在对中送料设备二的侧部。本发明盲孔加工生产线可实现工件自动输送、输送高度的调节以及工件盲孔的自动化加工,不仅提高盲孔加工的效率,而且可提高盲孔的加工精度,从而保证盲孔的加工质量。(The invention provides a blind hole processing production line, comprising: a blind hole processing mechanism; the centering feeding equipment I is used for conveying the workpiece to the blind hole machining mechanism; a second centering feeding device for conveying the workpiece output by the blind hole machining mechanism; feeding a material frame; and a discharging frame; the first centering feeding device is opposite to the inlet end of the blind hole processing mechanism, can be adjusted in height and is in the same horizontal line with the inlet end of the blind hole processing mechanism; the second centering feeding device is opposite to the outlet end of the blind hole processing mechanism, can adjust the height and is in the same horizontal line with the outlet end of the blind hole processing mechanism; the material inlet frame is arranged on the side portion of the first centering feeding device, and the material outlet frame is arranged on the side portion of the second centering feeding device. The blind hole processing production line can realize automatic conveying of workpieces, adjustment of conveying height and automatic processing of blind holes of the workpieces, not only improves the efficiency of blind hole processing, but also can improve the processing precision of the blind holes, thereby ensuring the processing quality of the blind holes.)

1. The blind hole machining production line is characterized in that: the method comprises the following steps:

the blind hole processing mechanism is used for processing blind holes on a workpiece;

the centering feeding equipment I is used for conveying the workpiece to the blind hole machining mechanism;

a second centering feeding device for conveying the workpiece output by the blind hole machining mechanism;

the feeding frame is used for placing workpiece raw materials;

the discharging frame is used for placing a blind hole processing workpiece;

the first centering feeding device is opposite to the inlet end of the blind hole processing mechanism, can be adjusted in height and is in the same horizontal line with the inlet end of the blind hole processing mechanism; the second centering feeding device is opposite to the outlet end of the blind hole processing mechanism, and the second centering feeding device can be adjusted in height and is in the same horizontal line with the outlet end of the blind hole processing mechanism; the material inlet frame is arranged on the side portion of the first centering feeding device, and the material outlet frame is arranged on the side portion of the second centering feeding device.

2. The blind hole machining production line according to claim 1, characterized in that: the first centering feeding device and the second centering feeding device both comprise:

a frame;

a conveying mechanism; the conveying mechanism comprises a conveying driving device and a plurality of conveying units with conveying rollers; the conveying units are arranged on the rack, and the conveying driving device is connected with the conveying units and synchronously drives each conveying roller to rotate in a linkage manner, so that the conveying of workpieces is realized;

the height adjusting mechanism is used for adjusting the height of the conveying roller;

and a material ejecting mechanism;

the height adjusting mechanism is connected with the conveying unit and synchronously adjusts the height of each conveying roller in a linkage manner, so that the conveying roller of the centering feeding device I is in the same horizontal line with the inlet end of the blind hole processing mechanism, or the conveying roller of the centering feeding device II is in the same horizontal line with the outlet end of the blind hole processing mechanism;

the ejection mechanism comprises an ejection driving device and a plurality of ejection units with ejection plates; the ejection units are arranged on the rack, and the ejection driving device is connected with the ejection units and synchronously drives each ejection plate to ascend in a linkage manner, so that workpieces on the conveying rollers are received.

3. The blind hole machining production line according to claim 2, characterized in that: the conveying unit also comprises a roller rotating shaft, a roller rotating bearing seat and a roller bearing seat; the roller rotating bearing seat is arranged on the rack and is connected with the roller rotating shaft; the roller bearing seat is connected with the roller rotating shaft, and the conveying roller is arranged on the roller bearing seat;

the conveying driving device comprises a conveying motor, a chain wheel I, a chain wheel II assembly, a chain wheel III and a chain; the first chain wheel is connected with an output shaft of the conveying motor; the number of the second chain wheel assemblies is equal to that of the roller rotating shafts, and the second chain wheel assemblies are connected with the roller rotating shafts; the number of the third chain wheels is equal to that of the conveying rollers, and each conveying roller is coaxially connected with the third chain wheel; in each conveying unit, the chain wheel tee is connected with the chain wheel two-component through a chain; the adjacent chain wheel II assemblies are connected through a chain; the first chain wheel is connected with one group of chain wheel assemblies through a chain, and therefore the conveying motor can synchronously drive each conveying roller to rotate in a linkage mode.

4. The blind hole machining production line according to claim 3, characterized in that: the height adjusting mechanism comprises an adjusting motor, a transmission assembly, a first push rod, a first swinging rod and a first connecting assembly; the number of the first oscillating rods is equal to that of the roller rotating shafts, and the first oscillating rods are connected with the roller rotating shafts; the adjacent first swinging rods are hinged through the first connecting component; the adjusting motor is connected with the first push rod through the transmission assembly, one end of the first push rod is hinged to the transmission assembly, the other end of the first push rod is hinged to one of the swing rods, and the height of each conveying roller is synchronously adjusted in a linkage mode through the adjusting motor.

5. The blind hole machining production line according to claim 2, characterized in that: the ejection unit is arranged between the adjacent conveying units and also comprises a second swing rod, an ejection rotating bearing seat and an ejection rotating shaft; the material ejecting rotating bearing seat is arranged on the rack and connected with the material ejecting rotating shaft; the ejector plate is arranged on the ejector rotating shaft, and the swing rod II is connected with the ejector rotating shaft;

the ejection mechanism further comprises a second connecting assembly; the adjacent second swing rods are hinged through the second connecting component; the connecting assembly II comprises a connecting head II and a connecting rod II; the adjacent connectors II are connected through connecting rods II; the second connector is hinged with the second swinging rod;

the ejection driving device comprises an ejection cylinder, a sliding seat, a linear rail and a second push rod; one end of the second push rod is hinged with the sliding seat, and the other end of the second push rod is hinged with one second swing rod; the sliding seat is connected with the linear rail in a sliding way and is connected with the material ejecting cylinder; when the material pushing device works, the material pushing cylinder drives the sliding seat to move so as to drive the push rod to push and pull each two pairs of oscillating rods, and the material pushing cylinder synchronously drives each material pushing plate to ascend in a linkage mode so as to bear workpieces on the conveying roller.

6. The blind hole machining production line according to claim 2, characterized in that: the feeding frame comprises a feeding frame body and a plurality of feeding bearing rods; a plurality of feeding bearing rods are arranged on the feeding frame body and incline downwards towards the direction of the material ejecting mechanism; a first stop block is arranged at the lower end part of the obliquely arranged feeding bearing rod; the ejector plate of the first centering feeding device is of an inclined structure and has the same inclined direction as the feeding bearing rod, and a convex part is arranged at the lower end part of the ejector plate of the inclined structure;

the discharging frame comprises a discharging frame body and a plurality of discharging supporting rods; a plurality of discharging supporting rods are arranged on the discharging frame body and incline upwards towards the direction of the material ejecting mechanism; a second stop block is arranged at the lower end part of the obliquely arranged discharging bearing rod; and the ejector plate of the second centering feeding device is of an inclined structure and has the same inclined direction as the discharging bearing rod, and a convex part is arranged at the high end part of the ejector plate of the inclined structure.

7. The blind hole machining production line according to claim 1, characterized in that: the blind hole machining mechanism comprises a front machine base, a rear machine base, a positioning clamp, a workpiece fixing device and at least two drilling devices, wherein the workpiece fixing device is used for fixing a workpiece and driving the workpiece to rotate; the rear engine base is provided with a processing station; the workpiece fixing device is arranged on the front base and movably connected with the front base along the length direction of the front base, so that the workpiece fixing device is controlled to drive a workpiece to be output from a machining station; the positioning fixture is arranged on the machining station and used for positioning a workpiece of the machining station; the drilling devices are arranged on the rear machine base and distributed on two sides of the machining station, and blind hole machining is carried out on a workpiece positioned on the machining station.

8. The blind hole machining production line according to claim 7, characterized in that: the drilling device comprises a base, a machining head and a moving assembly for driving the machining head to move; the moving assembly is arranged on the base and connected with the machining head, and the moving assembly can drive the machining head to move towards a machining station;

the drilling device further comprises a detection assembly for detecting the drilling reference surface of the workpiece; the detection assembly is arranged on the side part of the machining head; the detection assembly comprises a mounting seat, a detection rod, a return spring and a pressure sensor; the pressure sensor is fixed on the mounting seat, the detection rod is connected with the pressure sensor through the reset spring, and detection signals are fed back through the pressure sensor after the detection rod detects the drilling reference surface of the workpiece.

9. The blind hole machining production line according to claim 8, characterized in that: the drilling device is an adjustable drilling device or a fixed drilling device; the adjustable drilling device is arranged on the rear base and is movably connected with the rear base along the length direction of the rear base; the fixed drilling device is fixedly arranged on the rear engine base;

adjustable drilling equipment sets up on the frame of back to along the length direction of back frame and back frame swing joint indicate: the machine tool also comprises a processing position adjusting motor, an adjusting nut, an adjusting screw rod and an adjusting linear rail arranged on the rear machine base; the base is in sliding connection with the adjusting linear rail; the adjusting nut is sleeved on the adjusting screw rod and connected with the base; the machining position adjusting motor is connected with the adjusting screw rod to drive the adjusting screw rod to rotate so as to drive the base to move along the length direction of the rear base.

10. The blind hole machining production line according to claim 7, characterized in that: the workpiece fixing device comprises a rotary table sliding seat and a numerical control rotary table for fixing the workpiece and controlling the workpiece to rotate; the numerical control rotary table is arranged on the rotary table sliding seat; the rotary table sliding seat is arranged on the front base and movably connected with the front base along the length direction of the front base;

the revolving stage slide sets up on the front frame to along the length direction of front frame and front frame swing joint indicate: the feeding motor, the feeding nut, the feeding screw rod and the feeding line rail are arranged on the front base; the rotary table sliding seat is connected with the feeding line rail in a sliding manner; the feeding nut is sleeved on the feeding screw rod and is connected with the rotary table sliding seat; the feeding motor is connected with the feeding screw rod to drive the feeding screw rod to rotate so as to drive the rotary table sliding seat to move along the length direction of the front base.

Technical Field

The invention relates to the technical field of machining, in particular to a blind hole machining production line.

Background

In the field of machining blind holes, blind holes simply refer to holes that do not pass through a part completely during machining. In the prior art, a semi-finished product of a part is punched from a punch press and then is processed by drilling blind holes on the semi-finished product in a manual processing mode by using a drill bit.

However, the existing blind hole processing technology not only reduces the processing efficiency, but also cannot ensure the processing depth and precision of the semi-finished product with a large number of blind holes. For example, in the perforating gun, the blind hole of the outer gun barrel is processed, a plurality of blind holes are formed in the outer gun barrel along the length direction of the outer gun barrel, the blind holes are spirally distributed in the outer gun barrel, each blind hole corresponds to a perforating bullet installed on the inner gun barrel, the position of each blind hole is required to be corresponding to the position of the corresponding perforating bullet when the blind holes are processed, and the perforating bullets cannot penetrate through the blind holes and are ejected if the blind holes are not corresponding to the perforating bullets. Because the length of outer barrel is long and weight is big, overturn and remove by the manual work completely, not only increased workman's intensity of labour, but also reduced the machining efficiency of blind hole. In addition, the steel pipe needs to be re-assembled after each blind hole is machined, continuous accumulated errors exist, and the machined blind holes cannot be accurately aligned with the projectile hole after the outer gun tube is matched with the inner gun tube.

In addition, automatic feeding equipment is also added to the machining production line in order to improve the production mechanization level in the machining process. At present, an ordinary mechanical processing production line adopts independent automatic feeding equipment, and the automatic feeding equipment is provided with a motor and is independently conveyed. Because the automatic feeding equipment and the mechanical processing equipment are not designed integrally, the position of the automatic feeding equipment can be slightly adjusted according to different feeding positions. The position of the working height of the machining production line is fixed, so that the height of the automatic feeding equipment is ensured to correspond to the height of the machining production line, but the existing automatic feeding equipment does not have a height adjusting mechanism, so that the height of the automatic feeding equipment is required to be manually aligned with the height of the machining production line, and the mode is inconvenient to operate, cannot ensure the stability in the working process and cannot meet the requirement of modern machining.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings in the prior art, and provides a blind hole machining production line which can realize automatic conveying of workpieces, adjustment of conveying height and automatic machining of blind holes of the workpieces, so that blind hole machining efficiency is improved, blind hole machining accuracy is improved, and blind hole machining quality is guaranteed.

In order to achieve the purpose, the invention is realized by the following technical scheme: the blind hole machining production line is characterized in that: the method comprises the following steps:

the blind hole processing mechanism is used for processing blind holes on a workpiece;

the centering feeding equipment I is used for conveying the workpiece to the blind hole machining mechanism;

a second centering feeding device for conveying the workpiece output by the blind hole machining mechanism;

the feeding frame is used for placing workpiece raw materials;

the discharging frame is used for placing a blind hole processing workpiece;

the first centering feeding device is opposite to the inlet end of the blind hole processing mechanism, can be adjusted in height and is in the same horizontal line with the inlet end of the blind hole processing mechanism; the second centering feeding device is opposite to the outlet end of the blind hole processing mechanism, and the second centering feeding device can be adjusted in height and is in the same horizontal line with the outlet end of the blind hole processing mechanism; the material inlet frame is arranged on the side portion of the first centering feeding device, and the material outlet frame is arranged on the side portion of the second centering feeding device.

In the scheme, the workpiece raw materials fed into the material frame can be manually fed to the first centering feeding device, then conveyed to the blind hole machining mechanism through the first centering feeding device to be machined for blind holes of the workpiece, and after machining is finished, the machined workpiece is conveyed through the second centering feeding device and discharged to the discharging frame. The blind hole machining production line can realize automatic conveying of workpieces, adjustment of conveying height and automatic machining of blind holes of the workpieces, not only improves blind hole machining efficiency, but also can improve machining precision of the blind holes, and therefore machining quality of the blind holes is guaranteed.

The first centering feeding device and the second centering feeding device both comprise:

a frame;

a conveying mechanism; the conveying mechanism comprises a conveying driving device and a plurality of conveying units with conveying rollers; the conveying units are arranged on the rack, and the conveying driving device is connected with the conveying units and synchronously drives each conveying roller to rotate in a linkage manner, so that the conveying of workpieces is realized;

the height adjusting mechanism is used for adjusting the height of the conveying roller;

and a material ejecting mechanism;

the height adjusting mechanism is connected with the conveying unit and synchronously adjusts the height of each conveying roller in a linkage manner, so that the conveying roller of the centering feeding device I is in the same horizontal line with the inlet end of the blind hole processing mechanism, or the conveying roller of the centering feeding device II is in the same horizontal line with the outlet end of the blind hole processing mechanism;

the ejection mechanism comprises an ejection driving device and a plurality of ejection units with ejection plates; the ejection units are arranged on the rack, and the ejection driving device is connected with the ejection units and synchronously drives each ejection plate to ascend in a linkage manner, so that workpieces on the conveying rollers are received.

The height of each conveying roller can be synchronously adjusted by the first centering feeding device or the second centering feeding device through the height adjusting mechanism, so that the conveying rollers and the inlet end or the outlet end of the blind hole processing mechanism are positioned on the same horizontal line, the centering of the first centering feeding device or the second centering feeding device and the blind hole processing mechanism is realized, and the convenience and the production efficiency of processing feeding or discharging are improved. In addition, the centering feeding device I or the centering feeding device II supports the workpiece on the conveying roller through the material ejecting mechanism, so that the workpiece can be conveniently loaded or discharged. According to the invention, the height adjustment of the conveying roller of the centering feeding device I or the centering feeding device II, the rotation of the conveying roller and the lifting of the ejector plate are in a linkage synchronization mode, so that the driving and linkage structure of machinery can be simplified, and the synchronization of mechanical action can be improved to ensure the conveying stability of a processed workpiece and the bearing stability of the workpiece, thereby improving the precision and quality of subsequent processing of the workpiece and improving the stability of the matching of workpiece conveying and feeding or discharging.

The conveying unit also comprises a roller rotating shaft, a roller rotating bearing seat and a roller bearing seat; the roller rotating bearing seat is arranged on the rack and is connected with the roller rotating shaft; the roller bearing seat is connected with the roller rotating shaft, and the conveying roller is arranged on the roller bearing seat;

the conveying driving device comprises a conveying motor, a chain wheel I, a chain wheel II assembly, a chain wheel III and a chain; the first chain wheel is connected with an output shaft of the conveying motor; the number of the second chain wheel assemblies is equal to that of the roller rotating shafts, and the second chain wheel assemblies are connected with the roller rotating shafts; the number of the third chain wheels is equal to that of the conveying rollers, and each conveying roller is coaxially connected with the third chain wheel; in each conveying unit, the chain wheel tee is connected with the chain wheel two-component through a chain; the adjacent chain wheel II assemblies are connected through a chain; the first chain wheel is connected with one group of chain wheel assemblies through a chain, and therefore the conveying motor can synchronously drive each conveying roller to rotate in a linkage mode.

The centering feeding equipment I or the centering feeding equipment II can realize synchronous transmission of each conveying unit by adopting a chain wheel and chain transmission mode, not only can simplify the driving and linkage structure of machinery, but also can improve the synchronism of mechanical action to ensure the conveying stability of a machined workpiece, thereby improving the precision and quality of subsequent machining of the workpiece.

The height adjusting mechanism comprises an adjusting motor, a transmission assembly, a first push rod, a first swinging rod and a first connecting assembly; the number of the first oscillating rods is equal to that of the roller rotating shafts, and the first oscillating rods are connected with the roller rotating shafts; the adjacent first swinging rods are hinged through the first connecting component; the adjusting motor is connected with the first push rod through the transmission assembly, one end of the first push rod is hinged to the transmission assembly, the other end of the first push rod is hinged to one of the swing rods, and the height of each conveying roller is synchronously adjusted in a linkage mode through the adjusting motor. The centering feeding equipment I or the centering feeding equipment II can realize synchronous transmission of height adjustment of each conveying roller by adopting a transmission mode of the first push rod, the first swing rod and the first connecting assembly, not only can simplify the driving and linkage structure of machinery, but also can improve the synchronism of mechanical action to ensure that the heights of the conveying rollers are equal, and ensure the conveying stability of a processed workpiece, thereby improving the precision and quality of subsequent processing of the workpiece.

The ejection unit is arranged between the adjacent conveying units and also comprises a second swing rod, an ejection rotating bearing seat and an ejection rotating shaft; the material ejecting rotating bearing seat is arranged on the rack and connected with the material ejecting rotating shaft; the ejector plate is arranged on the ejector rotating shaft, and the swing rod II is connected with the ejector rotating shaft;

the ejection mechanism further comprises a second connecting assembly; the adjacent second swing rods are hinged through the second connecting component; the connecting assembly II comprises a connecting head II and a connecting rod II; the adjacent connectors II are connected through connecting rods II; the second connector is hinged with the second swinging rod;

the ejection driving device comprises an ejection cylinder, a sliding seat, a linear rail and a second push rod; one end of the second push rod is hinged with the sliding seat, and the other end of the second push rod is hinged with one second swing rod; the sliding seat is connected with the linear rail in a sliding way and is connected with the material ejecting cylinder; when the material pushing device works, the material pushing cylinder drives the sliding seat to move so as to drive the push rod to push and pull each two pairs of oscillating rods, and the material pushing cylinder synchronously drives each material pushing plate to ascend in a linkage mode so as to bear workpieces on the conveying roller.

According to the centering feeding device I or the centering feeding device II, the synchronous lifting of each ejector plate can be realized by adopting a transmission mode of the push rod II, the swing rod II and the connecting assembly II, so that the driving and linkage structure of machinery can be simplified, the synchronism of mechanical action can be improved, the stability of workpiece bearing is ensured, and the stability of workpiece conveying and feeding or discharging matching is improved.

The feeding frame comprises a feeding frame body and a plurality of feeding bearing rods; a plurality of feeding bearing rods are arranged on the feeding frame body and incline downwards towards the direction of the material ejecting mechanism; a first stop block is arranged at the lower end part of the obliquely arranged feeding bearing rod; the ejector plate of the first centering feeding device is of an inclined structure and has the same inclined direction as the feeding bearing rod, and a convex part is arranged at the lower end part of the ejector plate of the inclined structure;

the discharging frame comprises a discharging frame body and a plurality of discharging supporting rods; a plurality of discharging supporting rods are arranged on the discharging frame body and incline upwards towards the direction of the material ejecting mechanism; a second stop block is arranged at the lower end part of the obliquely arranged discharging bearing rod; and the ejector plate of the second centering feeding device is of an inclined structure and has the same inclined direction as the discharging bearing rod, and a convex part is arranged at the high end part of the ejector plate of the inclined structure.

According to the invention, the workpiece can slide close to the ejector plate through the feeding frame, the workpiece can be manually fed to the ejector plate to realize feeding, and the workpiece can slide to the discharging frame through the inclination of the ejector plate to realize workpiece discharging.

The blind hole machining mechanism comprises a front machine base, a rear machine base, a positioning clamp, a workpiece fixing device and at least two drilling devices, wherein the workpiece fixing device is used for fixing a workpiece and driving the workpiece to rotate; the rear engine base is provided with a processing station; the workpiece fixing device is arranged on the front base and movably connected with the front base along the length direction of the front base, so that the workpiece fixing device is controlled to drive a workpiece to be output from a machining station; the positioning fixture is arranged on the machining station and used for positioning a workpiece of the machining station; the drilling devices are arranged on the rear machine base and distributed on two sides of the machining station, and blind hole machining is carried out on a workpiece positioned on the machining station.

The workpiece fixing device can pull the workpiece out of the machining station to realize discharging, the workpiece fixing device can rotate the workpiece in the machining process, and the drilling devices distributed on two sides of the machining station can process blind holes on the workpiece. The blind hole machining mechanism not only reduces the labor intensity of workers, but also improves the blind hole machining efficiency; and the processing precision of the blind hole can be improved, thereby ensuring the processing quality of the blind hole.

The drilling device comprises a base, a machining head and a moving assembly for driving the machining head to move; the moving assembly is arranged on the base and connected with the machining head, and the moving assembly can drive the machining head to move towards a machining station;

the drilling device further comprises a detection assembly for detecting the drilling reference surface of the workpiece; the detection assembly is arranged on the side part of the machining head; the detection assembly comprises a mounting seat, a detection rod, a return spring and a pressure sensor; the pressure sensor is fixed on the mounting seat, the detection rod is connected with the pressure sensor through the reset spring, and detection signals are fed back through the pressure sensor after the detection rod detects the drilling reference surface of the workpiece.

The drilling device is an adjustable drilling device or a fixed drilling device; the adjustable drilling device is arranged on the rear base and is movably connected with the rear base along the length direction of the rear base; the fixed drilling device is fixedly arranged on the rear engine base;

adjustable drilling equipment sets up on the frame of back to along the length direction of back frame and back frame swing joint indicate: the machine tool also comprises a processing position adjusting motor, an adjusting nut, an adjusting screw rod and an adjusting linear rail arranged on the rear machine base; the base is in sliding connection with the adjusting linear rail; the adjusting nut is sleeved on the adjusting screw rod and connected with the base; the machining position adjusting motor is connected with the adjusting screw rod to drive the adjusting screw rod to rotate so as to drive the base to move along the length direction of the rear base.

The workpiece fixing device comprises a rotary table sliding seat and a numerical control rotary table for fixing the workpiece and controlling the workpiece to rotate; the numerical control rotary table is arranged on the rotary table sliding seat; the rotary table sliding seat is arranged on the front base and movably connected with the front base along the length direction of the front base;

the revolving stage slide sets up on the front frame to along the length direction of front frame and front frame swing joint indicate: the feeding motor, the feeding nut, the feeding screw rod and the feeding line rail are arranged on the front base; the rotary table sliding seat is connected with the feeding line rail in a sliding manner; the feeding nut is sleeved on the feeding screw rod and is connected with the rotary table sliding seat; the feeding motor is connected with the feeding screw rod to drive the feeding screw rod to rotate so as to drive the rotary table sliding seat to move along the length direction of the front base.

The working process of the blind hole machining production line of the invention is as follows:

1. workpiece raw materials entering the material rack are fed to a first ejector plate of the centering feeding equipment through manual operation, and the ejector plate is controlled to descend, so that the conveying rollers receive the workpiece raw materials. The height of the conveying roller is adjusted according to the height adaptation of the inlet end of the blind hole processing mechanism, so that the conveying roller of the first centering feeding device and the inlet end of the blind hole processing mechanism are in the same horizontal line. And controlling a conveying roller of the first centering feeding device to rotate, and conveying the workpiece raw material to the blind hole machining mechanism.

2. And controlling the adjustable drilling device to move along the length direction of the rear base so as to adjust the position of the adjustable drilling device.

3. The machining machine head of the adjustable drilling device and/or the machining machine head of the fixed drilling device on two sides of the machining station are controlled to move towards the machining station, when the detection assembly touches the side wall of the workpiece, a signal is output to obtain a drilling reference surface of the workpiece, and then the drilling depth of the drilling device is controlled, so that the consistency and the accuracy of the depth of each blind hole are guaranteed. Meanwhile, the workpiece fixing device rotates the workpiece during machining.

4. And the height of the conveying roller of the second centering and feeding device is adjusted according to the height adaptation of the outlet end of the blind hole processing mechanism, so that the conveying roller of the second centering and feeding device and the outlet end of the blind hole processing mechanism are in the same horizontal line. And controlling the workpiece fixing device to pull out the machined workpiece from the machining station and butt with the conveying roller of the second centering feeding device, controlling the conveying roller of the second centering feeding device to rotate, and outputting the machined workpiece from the blind hole machining mechanism. And controlling the lifting of the ejector plate of the second centering feeding device to enable the ejector plate to bear the machined workpiece, and sliding the ejector plate into the discharging frame in an inclined mode to realize the discharging of the machined workpiece.

Compared with the prior art, the invention has the following advantages and beneficial effects: the blind hole processing production line can realize automatic conveying of workpieces, adjustment of conveying height and automatic processing of blind holes of the workpieces, not only improves the efficiency of blind hole processing, but also can improve the processing precision of the blind holes, thereby ensuring the processing quality of the blind holes.

Drawings

FIG. 1 is a schematic view of a blind via processing line of the present invention;

FIG. 2 is a schematic top view of the centering feeder apparatus of the present invention;

FIG. 3 is a schematic top view of a second centering and feeding device of the present invention;

FIG. 4 is a schematic view of a centering feeder unit one or a centering feeder unit two of the present invention;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is a schematic view of the height adjustment mechanism of the present invention;

FIG. 7 is a schematic view of the ejector mechanism of the present invention;

FIG. 8 is a schematic view of the butt joint of the material feeding frame and the material ejecting mechanism according to the present invention;

FIG. 9 is a schematic view of the docking of the discharge frame and the ejector mechanism of the present invention;

FIG. 10 is a schematic view of a blind hole machining mechanism;

FIG. 11 is an enlarged view at B of FIG. 10;

FIG. 12 is a schematic view of a partial structure of a blind hole machining mechanism;

wherein, 1 is a frame, 2 is a workpiece, 3 is a blind hole processing mechanism, 3.1 is a front machine base, 3.2 is a rear machine base, 3.3 is a positioning clamp, 3.5 is an adjustable drilling device, 3.6 is a fixed drilling device, 3.7 is a base, 3.8 is a spindle motor, 3.9 is a spindle, 3.10 is a mounting base, 3.11 is a detection rod, 3.12 is a reset spring, 3.13 is a pressure sensor, 3.14 is a moving motor, 3.15 is a sliding block, 3.16 is a moving lead screw, 3.17 is a moving line rail, 3.18 is a processing position adjusting motor, 3.19 is an adjusting lead screw, 3.20 is an adjusting line rail, 3.21 is a turntable sliding base, 3.22 is a numerical control turntable roller, 3.23 is a feeding motor, 3.24 is a feeding lead screw, 3.25 is a feeding line rail, 3.26 is an inlet end, 3.27 is an outlet end, 4 is a conveying unit, 4.1 is a conveying roller, 4.2 is a rotating roller, 4.5 is a rotating shaft, 5.5 is a step roller adjusting mechanism, and a step roller bearing base is a step roller base, 5.3 is a first push rod, 5.4 is a first oscillating rod, 5.5 is a moving seat, 5.6 is a transmission bearing seat, 5.7 is a first connecting head, 5.8 is a first connecting rod, 6 is an ejection unit, 6.1 is an ejection plate, 6.2 is a second oscillating rod, 6.3 is an ejection rotating bearing seat, 6.4 is an ejection rotating shaft, 6.5 is a second connecting head, 6.6 is a second connecting rod, 7 is a conveying driving device, 7.1 is a conveying motor, 7.2 is a first chain wheel, 7.3 is a second chain wheel component, 7.4 is a third chain wheel, 7.5 is a chain, 8 is an ejection driving device, 8.1 is an ejection cylinder, 8.2 is a sliding seat, 8.3 is a linear rail, 8.4 is a second centering push rod, 9 is a feeding frame, 9.1 is a feeding frame body, 9.2 is a feeding support rod, 9.3 is a first stop block, 10.1 is a discharging frame body, 10.2 is a centering support rod, 10.2 is a first feeding support body, and 11.2 is a feeding device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Examples

As shown in fig. 1 to 12, the blind hole processing line of the present invention includes:

a blind hole processing mechanism 3 for processing the blind hole of the workpiece 2;

the centering feeding equipment I11 is used for conveying the workpiece 2 to the blind hole machining mechanism 2;

a second centering feeding device 12 for conveying the workpiece 2 output by the blind hole processing mechanism 3;

a feeding frame 9 for placing workpiece raw materials;

the discharging frame 10 is used for placing a blind hole processing workpiece;

the centering feeding device I11 is opposite to the inlet end 3.26 of the blind hole processing mechanism 3, and the centering feeding device I11 can be adjusted in height and is in the same horizontal line with the inlet end 3.26 of the blind hole processing mechanism 3; the second centering feeding device 12 is opposite to the outlet end 3.27 of the blind hole processing mechanism 3, and the second centering feeding device 12 can be adjusted in height and is in the same horizontal line with the outlet end 3.27 of the blind hole processing mechanism 3; the material inlet frame 9 is arranged on the side portion of the first centering feeding device 11, and the material outlet frame 10 is arranged on the side portion of the second centering feeding device 12.

The first centering feeding device 11 and the second centering feeding device 12 are equal in structure and respectively comprise:

a frame 1;

the conveying mechanism comprises a conveying driving device 7 and a plurality of conveying units 4 with conveying rollers 4.1, wherein the conveying units 4 are arranged on the rack 1, and the conveying driving device 7 is connected with the conveying units 4 and synchronously drives each conveying roller 4.1 to rotate in a linkage manner to realize conveying of the workpieces 2;

a height adjusting mechanism 5 for adjusting the height of the conveying roller 4.1;

a feeding frame 9 arranged at the side part of the frame 1;

and a material ejecting mechanism;

the height adjusting mechanism 5 is connected with the conveying unit 4 and synchronously adjusts the height of each conveying roller 4.1 in a linkage manner, so that the conveying rollers 4.1 and the inlet end 3.26 of the blind hole machining mechanism 3 are in the same horizontal line; or the conveying roller 4.1 and the outlet end 3.27 of the blind hole processing mechanism 3 are positioned on the same horizontal line;

the ejection mechanism comprises an ejection driving device 8 and a plurality of ejection units 6 with ejection plates 6.1, the ejection units 6 are arranged on the frame 1, the ejection driving device 8 is connected with the ejection units 6 and synchronously drives each ejection plate 6.1 to ascend in a linkage mode, and the workpieces 2 on the conveying rollers 4.1 are accepted.

The conveying unit 4 of the invention further comprises a roller rotating shaft 4.2, a roller rotating bearing seat 4.3 and a roller bearing seat 4.4, wherein the roller rotating bearing seat 4.3 is arranged on the frame 1 and connected with the roller rotating shaft 4.2, the roller bearing seat 4.4 is connected with the roller rotating shaft 4.2, and the conveying roller 4.1 is arranged on the roller bearing seat 4.4.

The conveying driving device 7 comprises a conveying motor 7.1, a first chain wheel 7.2, a second chain wheel assembly 7.3, a third chain wheel 7.4 and a chain 7.5, wherein the first chain wheel 7.2 is connected with an output shaft of the conveying motor 7.1, the number of the second chain wheel assemblies 7.3 is equal to that of roller rotating shafts 4.2, the second chain wheel assemblies 7.3 are connected with the roller rotating shafts 4.2, the number of the third chain wheels 7.4 is equal to that of the conveying rollers 4.1, and each conveying roller 4.1 is coaxially connected with the third chain wheel 7.4; in each conveying unit 4, a chain wheel III 7.4 is connected with a chain wheel II assembly 7.3 through a chain 7.5; the adjacent chain wheel second assemblies 7.3 are connected through a chain 7.5, the chain wheel first assemblies 7.2 are connected with one group of chain wheel second assemblies 7.3 through the chain 7.5, and the conveying motor 7.1 synchronously drives each conveying roller 4.1 to rotate in a linkage mode. The centering feeding equipment disclosed by the invention can realize synchronous transmission of each conveying unit 4 by adopting a chain wheel and chain transmission mode, not only can simplify the driving and linkage structure of machinery, but also can improve the synchronism of mechanical action to ensure the conveying stability of the workpiece 2, so that the precision and quality of subsequent processing of the workpiece 2 are improved.

The height adjusting mechanism 5 comprises an adjusting motor 5.1, a transmission assembly, a first push rod 5.3, a first swing rod 5.4 and a first connecting assembly, wherein the number of the first swing rods 5.4 is equal to that of the roller rotating shafts 4.2, and the first swing rods 5.4 are connected with the roller rotating shafts 4.2; the adjacent first swinging rods 5.4 are hinged through the first connecting component; the adjusting motor 5.1 is connected with the first push rod 5.3 through the transmission assembly, one end of the first push rod 5.3 is hinged with the transmission assembly, and the other end of the first push rod 5.3 is hinged with one of the swing rods 5.4, so that the height of each conveying roller 4.1 can be synchronously adjusted by the adjusting motor 5.1 in a linkage mode. The centering feeding equipment adopts the transmission mode of the first push rod 5.3, the first swing rod 5.4 and the first connecting assembly to realize synchronous transmission of height adjustment of each conveying roller 4.1, so that the driving and linkage structure of machinery can be simplified, the synchronism of mechanical action can be improved to ensure that the heights of the conveying rollers 4.1 are equal, the conveying stability of the workpiece 2 is ensured, and the precision and the quality of subsequent processing of the workpiece 2 are improved.

Specifically, the transmission assembly comprises a ladder tooth screw rod 5.2, a movable seat 5.5 and a transmission bearing seat 5.6, wherein the ladder tooth screw rod 5.2 is connected with an adjusting motor 5.1 and is arranged on the transmission bearing seat 5.6 in a penetrating manner, and the movable seat 5.5 is sleeved on the ladder tooth screw rod 5.2 and is hinged with a first push rod 5.3; when the device works, the adjusting motor 5.1 drives the ladder tooth screw rod 5.2 to rotate so as to drive the moving seat 5.5 to move, and the push rod 5.3 pushes and pulls each swinging rod 5.4. And the first connecting component comprises a first connecting head 5.7 and a first connecting rod 5.8, the adjacent first connecting heads 5.7 are connected through the first connecting rods 5.8, and the first connecting heads 5.7 are hinged with the first swinging rods 5.4.

The ejection unit 6 is arranged between the adjacent conveying units 4, and further comprises a swing rod II 6.2, an ejection rotating bearing seat 6.3 and an ejection rotating shaft 6.4, wherein the ejection rotating bearing seat 6.3 is arranged on the rack 1 and connected with the ejection rotating shaft 6.4, the ejection plate 6.1 is arranged on the ejection rotating shaft 6.4, and the swing rod II 6.2 is connected with the ejection rotating shaft 6.4. The ejection mechanism further comprises a second connecting assembly, the adjacent second swinging rods 6.2 are hinged through the second connecting assembly, and the second connecting assembly comprises a second connecting head 6.5 and a second connecting rod 6.6; the adjacent second connecting heads 6.5 are connected through a second connecting rod 6.6, and the second connecting heads 6.5 are hinged with the second swinging rods 6.2.

The ejection driving device 8 comprises an ejection cylinder 8.1, a sliding seat 8.2, a linear rail 8.3 and a second push rod 8.4, wherein one end of the second push rod 8.4 is hinged with the sliding seat 8.2, the other end of the second push rod is hinged with one of the swing rods 6.2, and the sliding seat 8.2 is connected with the linear rail 8.3 in a sliding manner and is connected with the ejection cylinder 8.1; when the synchronous lifting device works, the ejection cylinder 8.1 drives the sliding seat 8.2 to move so as to drive the push rod two 8.4 to push and pull each oscillating rod two 6.2, and the ejection cylinder 8.1 synchronously drives each ejector plate 6.1 to ascend in a linkage mode so as to bear the workpiece 2 on the conveying roller 4.1. The centering feeding equipment adopts a transmission mode of the second push rod 8.4, the second swing rod 6.2 and the second connecting assembly to realize synchronous lifting of each ejector plate 6.1, so that the driving and linkage structure of machinery can be simplified, the synchronism of mechanical action can be improved to ensure the bearing stability of the workpiece 2, and the stability of the matching of conveying and feeding or discharging of the workpiece 2 is improved.

The feeding frame 9 comprises a feeding frame body 9.1 and a plurality of feeding bearing rods 9.2; a plurality of feeding bearing rods 9.2 are arranged on the feeding frame body 9.1 and incline downwards towards the direction of the material ejecting mechanism; the lower end part of the obliquely arranged feeding bearing rod 9.2 is provided with a first stop dog 9.3. The ejector plate 6.1 is of an inclined structure, the inclined direction of the ejector plate is the same as that of the feeding bearing rod 9.2, and a convex part is arranged at the lower end part of the ejector plate 6.1 of the inclined structure. According to the invention, the workpiece 2 can slide close to the ejector plate 6.1 through the feeding frame 9, and the workpiece 2 is manually fed to the ejector plate 6.1 to realize feeding.

The discharging frame 10 comprises a discharging frame body 10.1 and a plurality of discharging supporting rods 10.2; a plurality of discharging supporting rods 10.2 are arranged on the discharging frame body 10.1 and incline upwards towards the direction of the material ejecting mechanism; a second stop block 10.3 is arranged at the lower end part of the obliquely arranged discharging bearing rod 10.2. The ejector plate 6.1 is of an inclined structure, the inclined direction of the ejector plate is the same as that of the discharging supporting rod 10.2, and a convex part is arranged at the high end part of the ejector plate 6.1 of the inclined structure. According to the invention, the workpiece 2 can slide to the discharging frame 10 by inclining the ejector plate 6.1, so that the workpiece 2 can be discharged.

The blind hole machining mechanism 3 comprises a front machine base 3.1, a rear machine base 3.2, a positioning clamp 3.3, a workpiece fixing device for fixing a workpiece 2 and driving the workpiece 2 to rotate, and four drilling devices for machining blind holes on the workpiece 2, wherein the four drilling devices comprise three adjustable drilling devices 3.5 and one fixed drilling device 3.6. This back frame 3.2 is provided with the processing station, and work piece fixing device sets up on preceding frame 3.1 to along the length direction of preceding frame 3.1 and preceding frame 3.1 movable connection, realize controlling work piece fixing device and drive work piece 2 output processing station, positioning fixture 3.3 sets up on the processing station, fixes a position work piece 2 of processing station. Three adjustable drilling devices 3.5 and a fixed drilling device 3.6 are respectively arranged on the rear machine base 3.2 and distributed on two sides of the machining station, so that blind hole machining is carried out on the workpiece 2 positioned on the machining station.

Specifically, adjustable drilling equipment 3.5 and fixed drilling equipment 3.6 all include base 3.7, processing aircraft nose and are used for driving the removal subassembly that the processing aircraft nose removed, and wherein, remove the subassembly and set up on base 3.7 and be connected with the processing aircraft nose, remove the subassembly and can drive the processing aircraft nose and remove towards the processing station. The machining head comprises a spindle motor 3.8, a spindle 3.9 and a drilling tool arranged on the spindle 3.9, wherein the spindle motor 3.8 is connected with the spindle to drive the drilling tool on the spindle 3.9 to rotate, and blind holes are machined in the workpiece 2.

The adjustable drilling device 3.5 and the fixed drilling device 3.6 of the invention each further comprise a detection assembly for detecting the drilling reference surface of the workpiece 2, and the detection assembly is arranged at the side part of the machining head. This detection subassembly includes mount pad 3.10, detection pole 3.11, reset spring 3.12 and pressure sensor 3.13, and wherein, pressure sensor 3.13 is fixed on mount pad 3.10, and detection pole 3.11 is connected with pressure sensor 3.13 through reset spring 3.12, realizes that detection pole 3.11 detects behind the drilling reference surface of work piece 2 through pressure sensor 3.13 feedback detection signal.

The moving assembly comprises a moving motor 3.14, a sliding block 3.15, a moving nut, a moving screw rod 3.16 and a moving linear rail 3.17 arranged on a base 3.7, wherein the sliding block 3.15 is connected with the moving linear rail 3.17 in a sliding mode and is connected with a machining head, the moving nut is sleeved on the moving screw rod 3.16 and is connected with the sliding block 3.15, and the moving motor 3.14 is connected with the moving screw rod 3.16 to drive the moving screw rod 3.16 to rotate so as to drive the machining head to move towards a machining station.

The fixed drilling device 3.6 of the invention is fixedly arranged on the rear machine base 3.2, and the three adjustable drilling devices 3.5 are arranged on the rear machine base 3.2 and movably connected with the rear machine base 3.2 along the length direction of the rear machine base 3.2, and the invention specifically comprises the following steps: the invention also comprises a processing position adjusting motor 3.18, an adjusting nut, an adjusting screw rod 3.19 and an adjusting linear rail 3.20 arranged on the rear machine base 3.2, wherein the base 3.7 is connected with the adjusting linear rail 3.20 in a sliding way, the adjusting nut is sleeved on the adjusting screw rod 3.19 and is connected with the base 3.7, and the processing position adjusting motor 3.18 is connected with the adjusting screw rod 3.19 to drive the adjusting screw rod 3.19 to rotate so as to drive the base 3.7 to move along the length direction of the rear machine base 3.2.

The workpiece fixing device comprises a rotary table sliding seat 3.21 and a numerical control rotary table 3.22 for fixing the workpiece 2 and controlling the workpiece 2 to rotate, wherein the numerical control rotary table 3.22 is arranged on the rotary table sliding seat 3.21, and the rotary table sliding seat 3.21 is arranged on a front machine base 3.1 and is movably connected with the front machine base 3.1 along the length direction of the front machine base 3.1. The method specifically comprises the following steps: the invention also comprises a feeding motor 3.23, a feeding nut, a feeding screw rod 3.24 and a feeding line rail 3.25 arranged on the front base 3.1, wherein the rotary table slide seat 3.21 is connected with the feeding line rail 3.25 in a sliding way, the feeding nut is sleeved on the feeding screw rod 3.24 and is connected with the rotary table slide seat 3.21, and the feeding motor 3.23 is connected with the feeding screw rod 3.24 to drive the feeding screw rod 3.24 to rotate so as to drive the rotary table slide seat 3.21 to move along the length direction of the front base 3.1.

The working process of the blind hole machining production line of the invention is as follows:

1. workpiece raw materials entering the material rack 9 are fed to the ejector plate 6.1 of the centering feeding equipment I11 through manual operation, and the ejector plate 6.1 is controlled to descend, so that the conveying roller 4.1 bears the workpiece raw materials. The height of the conveying roller 4.1 is adjusted according to the height of the inlet end 3.26 of the blind hole processing mechanism 3, so that the conveying roller 4.1 of the centering feeding device I11 and the inlet end 3.26 of the blind hole processing mechanism 3 are in the same horizontal line. And controlling a conveying roller 4.1 of the centering feeding equipment I11 to rotate, and conveying the workpiece raw material to the blind hole machining mechanism 3.

2. The adjustable drilling device 3.5 is controlled to move along the length direction of the rear machine base 3.2 so as to adjust the position of the adjustable drilling device 3.5.

3. The adjustable drilling device 3.5's of control processing station both sides processing aircraft nose and the processing aircraft nose of fixed drilling device 3.6 move towards processing station, and the measuring pole 3.11 when detecting component touches 2 lateral walls of work piece then output signal in order to acquire the drilling reference surface of work piece 2, and the drilling depth of controlling drilling device again to guarantee the uniformity and the accuracy nature of every blind hole degree of depth. Meanwhile, in the machining process, the workpiece fixing device rotates and feeds the workpiece 2.

4. The height of the conveying roller 4.1 of the second centering and feeding device 12 is adjusted according to the height of the outlet end 3.27 of the blind hole processing mechanism 3, so that the conveying roller 4.1 of the second centering and feeding device 12 and the outlet end 3.27 of the blind hole processing mechanism 3 are in the same horizontal line. And controlling the workpiece fixing device to pull out the machined workpiece from the machining station and butt with the conveying roller 4.1 of the second centering and feeding device 12, controlling the conveying roller 4.1 of the second centering and feeding device 12 to rotate, and outputting the machined workpiece from the blind hole machining mechanism 3. And controlling the ejector plate 6.1 of the second centering feeding device 12 to ascend so that the ejector plate 6.1 bears the processed workpiece and slides into the discharging frame 10 in an inclined mode to realize discharging of the processed workpiece.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.