CN112935815B - Automatic sequencing tapping device and machining method for internal thread ball head part - Google Patents

Abstract

The invention discloses an automatic sequencing and tapping device for an internal thread ball head part and a processing method, wherein the automatic sequencing and tapping device comprises the following steps: a feeding assembly; the feeding assembly is arranged corresponding to the feeding assembly; the processing subassembly includes first frame and the rotatable carousel that sets up on this first frame, the carousel corresponds the pay-off subassembly end sets up, the carousel makes graduation intermittent type formula rotation under first power unit's effect, the carousel week is followed the distribution and is had the processing portion that is used for placing the work piece, correspond on the first frame processing portion is provided with positioning fixture, installs fixed point unit, drilling unit, chamfer unit and attacks the screw thread unit around this carousel week on following the first frame of side. According to the invention, the automatic feeding and processing of the internal thread ball head part are carried out by arranging the feeding assembly, the feeding assembly and the processing assembly, so that the feeding and processing time can be saved, and the feeding and processing efficiency of the internal thread ball head part can be greatly improved.

Description

Automatic sequencing and tapping device for internal thread ball head part and machining method

Technical Field

The invention relates to the technical field of internal thread ball head machining, in particular to an automatic sequencing and tapping device and a machining method for internal thread ball head parts.

Background

At present, a plurality of machining devices for internal thread ball head parts exist in the market. These machining devices often require separate operations for machining. When the inner wire ball head part is processed in each process, the processed inner wire ball heads are collected in a centralized mode and then are transported to the next process for processing.

Disclosure of Invention

The invention aims to provide an automatic sequencing tapping device for an internal thread ball head part, aiming at the problems.

The invention also aims to provide a processing method implemented by the automatic sequencing tapping device for the internal thread ball head part, aiming at the problems.

The technical scheme adopted by the invention for realizing the purpose is as follows:

an internal thread ball head part automatic sequencing tapping device, includes:

a feeding assembly;

the feeding assembly is arranged corresponding to the feeding assembly;

the machining assembly comprises a first machine base and a rotary table which is rotatably arranged on the first machine base, the rotary table is arranged corresponding to the tail end of the feeding assembly, the rotary table rotates in an indexing intermittent manner under the action of a first power mechanism, machining parts for placing workpieces are distributed on the peripheral edge of the rotary table, a positioning clamp is arranged on the first machine base corresponding to the machining parts, and a fixed point unit, a drilling unit, a chamfering unit and a tapping unit are arranged on the first machine base around the side of the peripheral edge of the rotary table;

the processing part comprises a first positioning groove formed in the upper surface of the rotary table in a sunken mode, a processing groove formed in the first positioning groove in a sunken mode and a first matching block which is far away from the first positioning groove and formed on the upper surface of the rotary table in a protruding mode, the first positioning groove is an open type groove, the opening of the first positioning groove faces the positioning fixture, the inner side wall surface of the first positioning groove is arc-shaped and used for fitting a workpiece, the shape of the processing groove is matched with that of the workpiece and used for fitting the workpiece, the first matching block faces the end surface of the positioning fixture and is arranged along the edge of the first positioning groove, the end surface of the first matching block facing the positioning fixture is arc-shaped, and the arc center of the first matching block, facing the end surface of the positioning fixture, in an arc shape is overlapped with the arc center of the inner side wall surface of the first positioning groove;

the positioning fixture comprises a first supporting plate, a positioning cylinder and a positioning block, the first supporting plate is fixed on the first base, the positioning cylinder is fixed on the first supporting plate, a piston rod of the positioning cylinder faces towards the rotary table, and the piston rod of the positioning cylinder is connected with the positioning block.

Preferably, the positioning block comprises a first base body and a second base body which is connected and molded on the first base body, the size of the first base body is matched with the size of the first positioning groove, the first base body is movably arranged in the first positioning groove, the end face of the first base body, facing the first matching block, is set to be an arc face, the first base body, facing the end face of the first matching block, is positioned on the same vertical axis with the arc center of the side wall of the machining groove, the two opposite ends of the second base body protrude out of the two opposite ends of the first base body, the second base body, facing the end face of the first matching block, is recessed to form a first clamping groove, the groove wall of the first clamping groove is set to be an arc face, the arc center of the groove wall of the first clamping groove is positioned on the same vertical axis with the arc center of the end face of the first matching block, is positioned on the two sides of the opening of the first clamping groove, the end face of the second base body, facing the first matching block, is set to be used for surrounding the inclined face of the second matching block, and the piston rod is used for positioning the piston rod of the workpiece.

Preferably, the feeding assembly comprises a second base, a third base, a first driving motor, a first speed reducer, a first transmission mechanism and a chain plate, the second base is positioned beside the first base, the second base comprises a first support, a second support positioned right above the first support and a third support positioned obliquely above the second support, the third base is positioned on one side of the second base, the first driving motor and the first speed reducer are fixed on the third base, the output end of the first driving motor is connected with the input end of the first speed reducer through a first coupling, the output end of the first speed reducer is connected with the first transmission mechanism through a second coupling to drive the first transmission mechanism to move, the first transmission mechanism is respectively arranged on the first support and the third support, the chain plate is connected to the first transmission mechanism and forms a circular belt shape, the chain plate is obliquely arranged on the second base, the included angle between the bottom end of the chain plate and the horizontal plane of the second base is 45-75 degrees, the chain plate is close to the bottom end of the chain plate, a material box is arranged on the second support, an opening of the material box is arranged towards the chain plate, and the opening is close to the top end of the chain plate and corresponds to the feeding assembly on the third support, and a sliding plate is obliquely arranged on the feeding assembly.

Preferably, the first transmission mechanism comprises a first bearing block, a second bearing block, a first driving shaft, a driving gear, a first driven shaft, a driven gear and a chain, the first bearing block is symmetrically installed on the first support, the second bearing block is symmetrically installed on the third support, the first driving shaft penetrates through and is supported in the first bearing block which is symmetrically arranged, one end of the first driving shaft extends out of the first bearing block and is connected with the output end of the first speed reducer, the driving gear is symmetrically sleeved on the first driving shaft, the first driven shaft penetrates through and is supported in the second bearing block which is symmetrically arranged, the driven gear is symmetrically sleeved on the first driven shaft, and the chain is respectively engaged with the driving gear and the driven gear and is connected with the chain plate;

transverse baffle plates are distributed on the chain plates at intervals and used for supporting workpieces;

and a limiting spring is transversely and obliquely arranged above the chain plate and on the second bracket and used for blocking the workpieces protruding or stacked on the transverse baffle plate from advancing, and the limiting spring is parallel to the chain plate.

Preferably, the feeding assembly includes a fourth base, a fourth support, a third base, a fourth base, a second driving motor, a second driving shaft, a second driven shaft, a conveyor belt, and a conveyor path, the fourth base is located on one side of the feeding assembly, the third base and the fourth base are arranged on the fourth base in parallel along the workpiece advancing direction, the fourth support is mounted on the fourth base and is close to the third base, the second driving motor is arranged on the fourth support, an output shaft of the second driving motor faces the third base, the second driving shaft passes through and is supported in the third base, one end of the second driving shaft extends out of the third base, and the second driven shaft passes through and is supported in the fourth base, the conveying belt is wound on the second driving shaft and the second driven shaft, the output end of the second driving motor is connected with the second driving shaft through a third coupler for driving the conveying belt to transmit, a limiting part is arranged above the conveying belt and connected onto the third bearing seat and the fourth bearing seat, the limiting part comprises a first side plate, a second side plate and a first transverse plate, the two opposite ends of the first side plate are respectively provided with a first contact pin in a downward extending mode, the second side plate is arranged on one side of the first side plate in parallel, a second contact pin is arranged on the second side plate in a downward extending mode, the length of the first side plate is larger than that of the second side plate, the first transverse plate is connected onto the first side plate and the second side plate, the width of the first transverse plate is the same as that of the conveying belt for blocking stacked workpieces from advancing and falling into the conveying passage, the second driving shaft penetrates one of the first contact pins, the second driven shaft penetrates the other of the first contact pins and the second contact pins, the conveying channel is arranged on the fourth base corresponding to the conveying belt, and the tail end of the conveying channel is provided with a blanking channel corresponding to the machining part.

Preferably, the conveying is said and is close to the blanking is said and is provided with the fender subassembly in order to be used for stopping that the work piece gos forward and makes the orderly blanking of work piece one side keep away from the blanking is said and be close to in the conveying is said and is provided with quantity sensor and observation probe in order to be used for calculating the work piece quantity that passes through and observe the work piece state, keep away from the blanking is said and conveying is said and is provided with the vibration subassembly in one side in order to be used for shaking the work piece extremely in the workbin, be located vibration subassembly opposite side just corresponds conveying is said, the workbin is provided with the glide slope.

Preferably, the fixed point unit includes a first three-axis mechanical arm and a first rotating motor, the first three-axis mechanical arm is disposed beside the turntable, the first rotating motor is disposed at an output end of the first three-axis mechanical arm, and an output end of the first rotating motor 352 is connected to the fixed point drill;

the drilling unit comprises a second triaxial mechanical arm and a second rotating motor, the second triaxial mechanical arm is arranged on one side of the first triaxial mechanical arm, the second rotating motor is arranged at the output end of the second triaxial mechanical arm, and the output end of the second rotating motor is connected with a drilling bit;

the chamfering unit comprises a third triaxial mechanical arm and a third rotating motor, the third triaxial mechanical arm is arranged on one side of the second triaxial mechanical arm, the third rotating motor is arranged at the output end of the third triaxial mechanical arm, and the output end of the third rotating motor is connected with a chamfering drill bit;

the tapping unit comprises a fourth three-axis mechanical arm and a fourth rotating motor, the fourth three-axis mechanical arm is arranged on one side of the third three-axis mechanical arm, the fourth rotating motor is arranged at the output end of the fourth three-axis mechanical arm, and the output end of the fourth rotating motor is connected with a tapping drill bit.

Preferably, a blanking manipulator is arranged on one side of the tapping unit and used for carrying the machined workpiece.

A method for machining an internal thread ball head part comprises the following steps:

the internal thread ball head parts to be processed are intensively poured into a material box, the workpieces in the material box are extruded out of the material box due to the fact that the workpieces are too many, the workpieces just fall onto a chain plate at the moment, and the workpieces are supported by a transverse baffle plate;

when the chain plate moves to the topmost position and begins to fall, the workpiece falls into the conveyor belt due to the self gravity, the conveyor belt conveys the workpiece into the conveying channel, and finally the workpiece falls into the machining assembly from the blanking channel for tapping machining;

if the number of the workpieces in the conveying channel exceeds the volume space of the conveying channel, the vibration assembly can vibrate the redundant workpieces again to fall into the material box, and then the workpieces are fed again.

Preferably, the tapping process includes:

the turntable rotates clockwise, the processing part with the workpiece rotates to the position of a next positioning clamp, the positioning clamp fixes the workpiece in the processing part, the fixed point unit performs fixed point drilling marking on the upper surface of the workpiece, and after the marking is finished, the positioning clamp is released;

the turntable rotates to the position of a next positioning fixture along the clockwise direction, the positioning fixture fixes the workpiece in the machining part, the drilling unit drills holes in the position facing to the mark on the workpiece, and after drilling is completed, the positioning fixture is loosened;

the rotary table rotates to the position of a next positioning clamp along the clockwise direction, the positioning clamp fixes the workpiece in the processing part, a chamfering unit performs chamfering processing on a drilling opening, a third three-axis mechanical arm drives a chamfering drill bit to be arranged on a hole site central axis of the workpiece, the distance between the lower edge of the chamfering drill bit and the hole site inner wall of the workpiece is set to be a first distance, the distance between the outer side surface of the chamfering drill bit and the hole site inner wall of the workpiece is set to be a second distance, the first distance is larger than the second distance at the moment, the chamfering drill bit is moved and the moving length is the second distance, the third three-axis mechanical arm drives the chamfering drill bit to rotate clockwise around the opening for five circles, the horizontal grinding distance of the chamfering drill bit to the opening of the workpiece is set to be a third distance, and chamfering preprocessing is completed; then moving the chamfering drill bit to perform sine wave type moving grinding along the chamfering angle along the clockwise direction; finally, the lower surface of the chamfering drill bit is attached to the upper surface of the workpiece for grinding, chamfering processing is completed, and the positioning clamp is loosened;

the carousel rotates to next positioning fixture position along the clockwise, and positioning fixture fixes the work piece in the processing portion, and the unit of attacking the screw is facing to drilling and is attacking the screw processing, and fourth triaxial arm drive is attacking the screw drill bit and is going out to rotate and offer out the screw at the drilling inner wall, accomplishes the processing back of attacking the screw, and positioning fixture loosens to the work piece unloading of accomplishing processing.

The invention has the beneficial effects that: according to the invention, the automatic feeding and processing are carried out on the internal thread ball head part by arranging the feeding assembly, the feeding assembly and the processing assembly, so that the feeding and processing time can be saved, and the feeding and processing efficiency of the internal thread ball head part can be greatly improved.

The invention is further described with reference to the following figures and examples.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of an automatic sequencing tapping device for an internally threaded ball head part according to an embodiment of the invention;

fig. 2 is an enlarged schematic structural view of a processing portion and a positioning block according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a positioning block according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a feeding assembly and a feeding assembly provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a limiting portion according to an embodiment of the present invention;

fig. 6 is a top view of a material stop block provided in the embodiment of the present invention;

FIG. 7 is a schematic diagram of a tooling assembly provided in accordance with an embodiment of the present invention;

FIG. 8 is a sinusoidal partial displacement trace of a chamfer bit in a clockwise direction according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected to" another element, there are no intervening elements present.

Referring to fig. 1 to 7, in an alternative embodiment, the internal thread ball head part automatic sequencing tapping device comprises:

a feeding assembly 1;

the feeding component 2 is arranged corresponding to the feeding component;

the machining assembly 3 comprises a first machine base 31 and a rotary table 32 which is rotatably arranged on the first machine base 31, the rotary table 32 is arranged corresponding to the tail end of the feeding assembly, the rotary table 32 rotates in an indexing intermittent manner under the action of a first power mechanism, machining parts 33 for placing workpieces are distributed on the periphery of the rotary table 32, a positioning clamp 34 is arranged on the first machine base 31 corresponding to the machining parts 33, and a fixed point unit 35, a drilling unit 36, a chamfering unit 37 and a tapping unit 38 are arranged on the first machine base 31 around the side of the periphery of the rotary table 32;

the processing part 33 comprises a first positioning groove 331 formed on the upper surface of the turntable 32 in a concave manner, a processing groove 332 formed on the first positioning groove 331 in a concave manner, and a first matching block 333 formed on the upper surface of the turntable 32 in a convex manner and far away from the first positioning groove 331, wherein the first positioning groove 331 is an open type groove, the opening of the first positioning groove 331 is arranged towards the positioning fixture 34, the inner side wall surface of the first positioning groove 331 is arranged in an arc shape for fitting a workpiece, the processing groove 332 is matched with the workpiece in shape for fitting the workpiece, the first matching block 333 is arranged along the edge of the first positioning groove 331 towards the end surface of the positioning fixture 34, the end surface of the first matching block 333 towards the positioning fixture 34 is arranged in an arc shape, and the arc center of the arc shape where the end surface of the first matching block 333 towards the positioning fixture 34 is overlapped with the arc center of the inner side wall surface of the first positioning groove 331;

the positioning fixture 34 includes a first supporting plate 341, a positioning cylinder 342, and a positioning block 343, the first supporting plate 341 is fixed on the first housing 31, the positioning cylinder 342 is fixed on the first supporting plate 341, a piston rod of the positioning cylinder 342 is disposed toward the turntable 32, and a piston rod of the positioning cylinder 342 is connected to the positioning block 343.

The opening of the first positioning groove 331 facilitates the pushing-in of the positioning fixture 34, when the workpiece falls into the processing portion 33, the lower end of the workpiece is placed in the processing groove 332, the processing groove 332 is oval, and when the workpiece is not fixed by the positioning fixture 34, the lower end of the workpiece can move freely and is not fixed firmly although being placed in the processing groove 332. When the positioning clamp 34 fixes the workpiece, the positioning clamp 34 pushes the workpiece and enables the workpiece component to approach the first matching block 333, and because the radian of the joint surfaces of the first matching block 333, the first positioning groove 331 and the processing groove 332 with the workpiece is matched with the radian of the peripheral edge of the workpiece, the workpiece can be well jointed on the first matching block 333 to play a role of stabilizing the workpiece during processing, and the workpiece is prevented from moving randomly; in addition, the first engaging block 333 can prevent the upper end of the workpiece from inclining, so as to further improve the processing precision of the workpiece, and the first engaging block 333 can provide a horizontal and transverse supporting force on one side of the workpiece, thereby effectively ensuring the workpiece to topple.

In addition, when the positioning clamp 34 clamps the workpiece, a circular clamping space is formed between the positioning block 343 and the first engagement block 333 of the positioning clamp 34, and the circular clamping space is matched with the outer periphery of the workpiece in size, so that the upper end of the workpiece does not extend beyond the second base when the workpiece is clamped. With the above structure, the second base of the positioning block 343 can completely cover the other side of the workpiece, thereby making the workpiece more stable when moving.

In addition, the oval arrangement of the processing tank 332 can adapt to various cylindrical inner thread ball head workpieces with different sizes, and the adaptability and the processing diversity of the device are further improved.

Referring to fig. 1 to 7, in an alternative embodiment of the automatic sequencing tapping device for an internally threaded ball-head component, the positioning block 343 includes a first base 3431 and a second base 3432 connected and formed on the first base 3431, the first base 3431 is matched in size with the first positioning groove 331, the first base 3431 is movably disposed in the first positioning groove 331, an end surface of the first base 3431 facing the first fitting block 333 is provided with an arc surface, an arc center of an end surface of the first base 3431 facing the first fitting block 333 is located on the same vertical axis as an arc center of an end surface of a side wall of the machining groove 332, opposite ends of the second base 3432 protrude from opposite ends of the first base 3431, an end surface of the second base 3432 facing the first fitting block 333 is concavely formed with a first clamping groove 3432a, a groove wall of the first clamping groove 32a is provided with an arc surface, a groove wall of the first clamping groove 3432a is provided with an arc surface facing the first fitting block 3432, and a workpiece is provided with a clamping groove 3432a clamping groove wall of the arc surface of the first clamping groove 3432 facing the first fitting block 333, and a clamping groove 3432 is provided with an inclined surface of the first clamping groove 3432, and a clamping groove is provided with an inclined surface of the first clamping groove 3432 facing the end surface of the first clamping groove 3432, and a clamping groove wall of the end surface of the first clamping groove 3432, and a clamping cylinder is provided with an inclined surface of the clamping cylinder for positioning the workpiece, and the workpiece.

The size of the first base 3431 is matched with the size of the first positioning groove 331, and only a small gap exists between the first base 3431 and the first positioning groove 331 for the first base 3431 to move smoothly in the first positioning groove 331, and the first positioning groove 331 can play a guiding role to move the first base 3431 along the first positioning groove 331.

The first base 3431 and the second base 3432 are integrally formed.

Referring to fig. 1 to 7, in an alternative embodiment of the automatic inner screw ball head part sequencing and tapping device, the feeding assembly 1 includes a second base 11, a third base 12, a first driving motor 13, a first speed reducer 14, a first transmission mechanism, and a chain plate 16, the second base 11 is located beside the first base 31, the second base 11 includes a first support 111, a second support 112 located directly above the first support 111, and a third support 113 located obliquely above the second support 112, the third base 12 is located on one side of the second base 11, the first driving motor 13 and the first speed reducer 14 are fixed on the third base 12, an output end of the first driving motor 13 is connected to an input end of the first speed reducer 14 through a first coupling, an output end of the first speed reducer 14 is connected to the first transmission mechanism through a second coupling to drive the first transmission mechanism, the first transmission mechanism is respectively disposed on the first support 111 and the third support 113, the first speed reducer 14 is connected to the first transmission mechanism through a second coupling to drive the first transmission mechanism, the first transmission mechanism is disposed on the first support 111 and the second support 113, and the second transmission mechanism 16 is disposed on the horizontal plane, and an angle formed by an opening 17 of the chain plate 16 is formed by the second support 16, and an angle formed by the second feeding box 16, and an angle formed by the second end of the chain plate 16 is set on the second support 16, and an angle 17, and an angle formed by the second horizontal plane 16, and an angle 16.

When the chain plate 16 is used, the first driving motor 13 drives the first speed reducer 14 to rotate, the first speed reducer 14 drives the first transmission mechanism to rotate, and the first transmission mechanism rotates to enable the chain plate 16 to rotate along the first transmission mechanism. The first transmission mechanism and the chain plate 16 are obliquely arranged on the second base 11 after being combined, and the included angle between the bottom end of the chain plate 16 and the horizontal plane of the second base 11 is 70 degrees. In addition, the included angle formed between the bottom of the material box 17 and the chain plate 16 is also 70 degrees, and the distance between the material box 17 and the chain plate 16 can be ensured not to be too large by maintaining the included angle between the bottom of the material box 17 and the chain plate 16 to be 70 degrees. If the distance between the work bin 17 and the chain plate 16 is too large, the work pieces will not fall onto the horizontal baffle smoothly when being squeezed out of the work bin 17.

Referring to fig. 1 to 7, in an alternative embodiment of the automatic internal thread ball head part sequencing and tapping device, the first transmission mechanism includes a first bearing seat 151, a second bearing seat 152, a first driving shaft, a driving gear 153, a first driven shaft, a driven gear 154 and a chain, the first bearing seat 151 is symmetrically installed on the first support 111, the second bearing seat 152 is symmetrically installed on the third support 113, the first driving shaft passes through and is supported in the first bearing seat 151 which is symmetrically arranged, one end of the first driving shaft extends out of the first bearing seat 151 and is connected with an output end of the first speed reducer 14, the driving gear 153 is symmetrically sleeved on the first driving shaft, the first driven shaft passes through and is supported in the second bearing seat 152 which is symmetrically arranged, the driven gear 154 is symmetrically sleeved on the first driven shaft, and the chain is respectively engaged with the driving gear 153 and the driven gear 154 and is connected with the chain plate 16;

transverse baffle plates 161 are distributed on the chain plate 16 at intervals and used for supporting workpieces;

a limiting spring is obliquely arranged on the second bracket 112 in the transverse direction above the link plate 16 for blocking the advance of the workpieces protruding or stacked on the cross baffle 161, and is parallel to the link plate 16.

The first bearing seat 151 and the second bearing seat 152 are not arranged on the same vertical plane, but are arranged in a staggered manner, and the link plate 16 can be ensured to be obliquely arranged on the second machine base 11 by adopting the structure. In use, the first driving motor 13 drives the first speed reducer 14 to operate, and the first speed reducer 14 drives the first driving shaft to rotate counterclockwise, so that the driving gear 153 also rotates counterclockwise. Since the driving gear 153 and the driven gear 154 are connected together by a chain, the driven gear 154 is also rotated in a counterclockwise direction by the driving gear 153. The chain is connected with the chain plate 16 to drive the chain plate 16 to rotate, so that the chain plate 16 carries the workpiece from the position of the material box 17 to rise to the highest position of the chain plate 16, and the workpiece on the transverse baffle plate 161 slides on the conveying belt due to the gravity of the workpiece, thereby completing the feeding process.

When carrying the work piece and lifting work piece on sprocket, the horizontal baffle, if there is the work piece of piling up on the horizontal baffle, after spacing spring, can contact with spacing spring when the work piece that piles up, and then stopped advancing to fall into on workbin or the next horizontal baffle.

Referring to fig. 1 to 7, in an alternative embodiment of the automatic internal thread ball head part sequencing and tapping apparatus, the feeding assembly 2 includes a fourth base 21, a fourth support 22, a third bearing seat 23, a fourth bearing seat 24, a second driving motor 25, a second driving shaft, a second driven shaft, a conveyor belt 26, and a conveyor path 27, the fourth base 21 is located on one side of the feeding assembly 1, the third bearing seat 23 and the fourth bearing seat 24 are juxtaposed on the fourth base 21 along a workpiece advance direction, the fourth support 22 is mounted on the fourth base 21 and close to the third bearing seat 23, the second driving motor 25 is disposed on the fourth support 22, an output shaft of the second driving motor 25 is disposed toward the third bearing seat 23, and the second driving shaft passes through and is supported in the third bearing seat 23, one end of the second driving shaft extends out of the third bearing seat 23, the second driven shaft passes through and is supported in the fourth bearing seat 24, the conveyor belt 26 is wound on the second driving shaft and the second driven shaft, the output end of the second driving motor 25 is connected with the second driving shaft through a third coupler for driving the conveyor belt 26, the limiting part 28 is located above the conveyor belt 26 and connected to the third bearing seat 23 and the fourth bearing seat 24, the limiting part 28 comprises a first side plate 281, a second side plate 282 and a first transverse plate 283, two opposite ends of the first side plate 281 are respectively provided with a first contact pin 2811 extending downwards, the second side plate 282 is arranged in parallel at one side of the first side plate 281, a second contact pin 2821 extends downwards from the second side plate 282, and the length of the first side plate 281 is greater than that of the second side plate 282, the first lateral plate 283 is connected to the first lateral plate 281 and the second lateral plate 282, the width of the first lateral plate 283 is the same as the width of the conveyor belt 26 for blocking the stacked workpieces from advancing and falling into the conveying path 27, the second driving shaft is disposed through one of the first contact pins 2811, the second driven shaft is disposed through the other of the first contact pins 2811 and the second contact pin 2821, the conveying path 27 is disposed on the fourth machine base 21 corresponding to the conveyor belt 26, and the end of the conveying path 27 is disposed with a blanking path 271 corresponding to the processing portion 33.

When the workpiece conveying device is used, the second driving motor 25 drives the second driving shaft to rotate anticlockwise (i.e. the workpiece advancing direction), and as the second driving shaft and the second driven shaft are connected together through the transmission belt, the second driven shaft and the transmission belt also rotate along the anticlockwise direction, so as to drive the workpiece to move towards the conveying channel 27.

In addition, a limiting part 28 is arranged on the conveyor belt 26, and the limiting part 28 can effectively prevent the workpieces from falling onto the conveying channel 27 in a stacked state, so that the workpieces sequentially fall onto the conveying channel 27. The first side plate 281 is disposed opposite to the link plate 16, and is used for preventing the workpiece from rolling out of the conveyor belt 26 when the workpiece falls down, so as to block the workpiece from rolling out of the conveyor belt 26. In addition, the first horizontal plate 283 is used for limiting the advance of the stacked workpieces and blocking the stacked workpieces so as to enable the workpieces stacked at the upper end to fall down, thereby ensuring the ordered delivery of the workpieces.

Referring to fig. 1 to 7, in an automatic inner screw ball head part sequencing tapping device in an optional embodiment, a material blocking assembly is arranged on one side of the conveying channel 27 close to the blanking channel 271 and used for blocking workpieces from advancing so that the workpieces can be blanked in order, a quantity sensor and an observation probe are arranged on the conveying channel 27 close to the material blocking assembly and used for calculating the number of the passing workpieces and observing the states of the workpieces, a vibration assembly is arranged on one side of the conveying channel 27 far away from the blanking channel 271 and used for vibrating the workpieces to the material box 17, and a lower slide 29 is arranged on the other side of the vibration assembly and corresponding to the conveying channel 27 and the material box 17.

Wherein, keeping off the material subassembly including keeping off material cylinder and keeping off the material piece, keeping off material cylinder level and setting up in conveying way 27 one side, 27 settings are said towards this conveying to the piston rod that keeps off the material cylinder, keep off the material piece and connect on the piston rod of this keeping off material cylinder, keep off the piston rod drive of material cylinder and keep off material piece lateral shifting on conveying way 27, and then the separation work piece gos forward. The material blocking assembly can prevent excessive workpieces from being accumulated on the conveying channel 27, the workpieces can be guaranteed to enter the processing assembly 3 for processing through the blanking channel 271 in order, the workpieces accumulated on the conveying channel 27 can fall down through the vibration of the vibration assembly into the slide channel, and fall into the material box 17 through the lower slide channel 29 for reloading.

Wherein, the vibration subassembly includes vibrating cylinder and vibrating mass, vibrating cylinder level sets up in transfer passage 27 one side, and vibrating cylinder's piston rod sets up towards this transfer passage 27, and the vibrating mass is connected on this vibrating cylinder's piston rod, and vibrating cylinder's piston rod moves and then drives vibrating mass vibration transfer passage 27 according to certain frequency to the work piece that makes to press close to transfer passage 27 wall is shaken away from transfer passage 27 wall, and at this moment, work piece in the transfer passage 27 has partly work piece to be shaken if in the middle of the lower slide 29 gets back to workbin 17 again under the collision each other, and then material loading again.

In addition, the material blocking block is roughly arranged in a square structure, the material blocking block is back to one end face of the material blocking cylinder, a groove matched with the appearance of a workpiece is formed in the concave mode, and the two opposite ends of the opening of the groove are respectively arranged to be pointed ends for separating the workpieces to be blanked.

In addition, a turnover mechanical arm is arranged on one side of the conveying channel and used for clamping the workpiece to turn over if the workpiece passes through the quantity sensor and the position of the observation probe when the position of the workpiece is incorrect, so that the workpiece is in the correct position.

Referring to fig. 1 to 7, in an alternative embodiment of the internal thread ball head part automatic sequencing and tapping apparatus, the pointing unit 35 includes a first three-axis robot 351 and a first rotating motor 352, the first three-axis robot 351 is disposed beside the turntable 32, the first rotating motor 352 is disposed at an output end of the first three-axis robot 351, and an output end of the first rotating motor 352 is connected with a pointing drill 353;

the drilling unit 36 includes a second triaxial mechanical arm 361 and a second rotating motor 362, the second triaxial mechanical arm 361 is disposed at one side of the first triaxial mechanical arm 351, the second rotating motor 362 is disposed at an output end of the second triaxial mechanical arm 361, and an output end of the second rotating motor 362 is connected with a drilling bit 363;

the chamfering unit 37 comprises a third triaxial mechanical arm 371 and a third rotating motor 372, the third triaxial mechanical arm 371 is arranged on one side of the second triaxial mechanical arm 361, the third rotating motor 372 is arranged at the output end of the third triaxial mechanical arm 371, and the output end of the third rotating motor 372 is connected with a chamfering bit 373;

the tapping unit 38 comprises a fourth three-axis mechanical arm 381 and a fourth rotating motor 382, the fourth three-axis mechanical arm 381 is disposed on one side of the third three-axis mechanical arm 371, the fourth rotating motor 382 is disposed at an output end of the fourth three-axis mechanical arm 381, and an output end of the fourth rotating motor 382 is connected to a tapping drill 383.

A first sensor is disposed on one side of the first rotating motor 352, so as to determine the position of the first rotating motor 352, and feed back the position to the controller, so as to control the position of the first triaxial mechanical arm 351.

A second sensor is disposed on one side of the second rotating motor 362 for determining the position of the second rotating motor 362, and feeding back the position to the controller to control the position of the second triaxial mechanical arm 361.

A third sensor is disposed on one side of the third rotating motor 372 for determining the position of the third rotating motor 372, and feeding the position back to the controller to control the position of the third three-axis robot arm 371.

A fourth sensor is disposed on one side of the fourth rotating motor 382, and is used for determining the position of the fourth rotating motor 382, and feeding the position back to the controller to control the position of the fourth triaxial mechanical arm 381.

And an identification mark area is arranged on one side of each processing part on the turntable and is used for being identified by the first sensor, the second sensor, the third sensor and the fourth sensor, and the first three-axis mechanical arm, the second three-axis mechanical arm, the third three-axis mechanical arm and the fourth three-axis mechanical arm are further used for respectively controlling and moving the positions of the first rotating motor, the second rotating motor, the third rotating motor and the fourth rotating motor so that the probes on the first rotating motor, the second rotating motor, the third rotating motor and the fourth rotating motor are aligned with the workpiece.

Referring to fig. 1 to 7, in an alternative embodiment of the automatic internal thread ball head part sequencing and tapping device, a blanking manipulator (not shown) is arranged on one side of the tapping unit 38 for carrying a processed workpiece.

In an alternative embodiment, the method for machining the internal thread ball head part comprises the following steps:

the internal thread ball head parts to be processed are intensively poured into the material box 17, and the excessive workpieces in the material box 17 can be extruded out of the material box 17 and just fall on the chain plate 16, and the workpieces are supported by the transverse baffle plate 161;

until the chain plate 16 moves to the topmost position and begins to fall, the workpiece falls into the conveyor belt 26 due to the self gravity, the conveyor belt 26 conveys the workpiece into the conveyor path 27, and finally the workpiece falls into the machining assembly 3 from the blanking path 271 for tapping machining;

if the number of the workpieces in the conveying path 27 exceeds the volume space of the conveying path 27, the vibrating assembly will vibrate the redundant workpieces to fall into the bin 17 again for feeding again.

Specifically, by adopting the workpiece feeding method, the workpieces can be orderly discharged on the conveying channel, and cannot be excessively accumulated on the conveying channel, so that the workpiece feeding efficiency can be further improved.

In an alternative embodiment, the method for machining an internally threaded ball head part includes:

the turntable 32 rotates clockwise, the processing part 33 with the workpiece rotates to the position of the next positioning clamp 34, the positioning clamp 34 fixes the workpiece in the processing part 33, the positioning unit 35 performs positioning drilling marking on the upper surface of the workpiece, and after the marking is finished, the positioning clamp 34 is released; specifically, the marking holes are formed for positioning and facilitating subsequent drilling.

The turntable 32 rotates to the position of the next positioning clamp 34 along the clockwise direction, the positioning clamp 34 fixes the workpiece in the processing part 33, the drilling unit 36 drills holes at the marked position on the workpiece, and after the drilling is finished, the positioning clamp 34 is released;

the rotary table rotates to the position of a next positioning clamp along the clockwise direction, the positioning clamp fixes the workpiece in the machining part, the chamfering unit performs chamfering machining on a drilling opening, the third three-axis mechanical arm drives the chamfering drill to be arranged on the central axis of the hole site of the workpiece, the distance between the lower edge of the chamfering drill and the inner wall of the hole site of the workpiece is set to be a first distance, the distance between the outer side surface of the chamfering drill and the inner wall of the hole site of the workpiece is set to be a second distance, the first distance is larger than the second distance at the moment, the chamfering drill is moved and the moving length is the second distance, the third three-axis mechanical arm drives the chamfering drill to clockwise rotate around the opening for five circles, the horizontal grinding distance of the chamfering drill to the opening of the workpiece is set to be a third distance, and chamfering preprocessing is completed; moving the chamfering drill bit to perform sine wave type moving deburring along the chamfering angle along the clockwise direction; finally, the lower surface of the chamfering drill bit is attached to the upper surface of the workpiece for grinding, chamfering processing is completed, and the positioning clamp is loosened;

specifically, the total movement distance of the chamfering drill is the second distance plus the third distance, and the length of the second distance plus the third distance is the length of the first distance, namely when the chamfering drill is attached to the inner wall of the drill hole, chamfering preprocessing is completed. In addition, the chamfering drill bit performs sine wave type moving grinding along the chamfer angle along the clockwise direction, so that burrs generated by grinding the chamfer angle can be effectively cleaned, and the chamfering drill bit performs sine wave type moving along the chamfer angle along the clockwise direction to be attached to the chamfer angle wall surface to move in the horizontal direction, so that the chamfer angle wall surface is smoother.

The turntable 32 rotates to the position of the next positioning fixture 34 along the clockwise direction, the positioning fixture 34 fixes the workpiece in the processing part 33, the tapping unit 38 performs tapping processing on the drilled hole, the fourth triaxial mechanical arm 381 drives the tapping drill 383 to rotate on the inner wall of the drilled hole and open threads, and after the tapping processing is completed, the positioning fixture 34 is loosened, and the processed workpiece is blanked.

According to the invention, the automatic feeding and processing of the internal thread ball head part are carried out by arranging the feeding component 1, the feeding component 2 and the processing component 3, so that the feeding and processing time can be saved, and the feeding and processing efficiency of the internal thread ball head part is greatly improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make many possible variations and modifications to the disclosed solution, or to modify equivalent embodiments, without departing from the scope of the solution, using the methods and techniques disclosed above. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.

Claims (8)

1. The utility model provides an internal thread bulb part automatic sequencing tapping device which characterized in that includes:

a feeding assembly;

the feeding assembly is arranged corresponding to the feeding assembly;

the machining assembly comprises a first machine base and a rotary table which is rotatably arranged on the first machine base, the rotary table is arranged corresponding to the tail end of the feeding assembly, the rotary table rotates in an indexing intermittent manner under the action of a first power mechanism, machining parts for placing workpieces are distributed on the peripheral edge of the rotary table, a positioning clamp is arranged on the first machine base corresponding to the machining parts, and a fixed point unit, a drilling unit, a chamfering unit and a tapping unit are arranged on the first machine base around the side of the peripheral edge of the rotary table;

the processing part comprises a first positioning groove formed on the upper surface of the rotary table in a sunken mode, a processing groove formed on the first positioning groove in a sunken mode and a first matching block which is far away from the first positioning groove and formed on the upper surface of the rotary table in a protruding mode, the first positioning groove is an open type groove, the opening of the first positioning groove faces the positioning fixture, the inner side wall surface of the first positioning groove is arc-shaped and used for fitting a workpiece, the shape of the processing groove is matched with that of the workpiece and used for fitting the workpiece, the end surface of the first matching block facing the positioning fixture is arranged along the edge of the first positioning groove, the end surface of the first matching block facing the positioning fixture is arc-shaped, and the arc center of the first matching block facing the arc-shaped position of the end surface of the positioning fixture is overlapped with the arc center of the inner side wall surface of the first positioning groove;

the feeding assembly comprises a fourth base, a fourth support, a third bearing seat, a fourth bearing seat, a second driving motor, a second driving shaft, a second driven shaft, a conveyor belt and a conveying channel, the fourth base is positioned on one side of the feeding assembly, the third bearing seat and the fourth bearing seat are arranged on the fourth base in parallel along the advancing direction of a workpiece, the fourth support is arranged on the fourth base and close to the third bearing seat, the second driving motor is arranged on the fourth support, the output shaft of the second driving motor faces the third bearing seat, the second driving shaft penetrates and is supported in the third bearing seat, one end of the second driving shaft extends out of the third bearing seat, the second driven shaft penetrates and is supported in the fourth bearing seat, and the conveyor belt is wound on the second driving shaft and the second driven shaft, the output end of the second driving motor is connected with the second driving shaft through a third coupler for driving the transmission of the conveyor belt, the second driving shaft is positioned above the conveyor belt and is connected with a limiting part on the third bearing seat and the fourth bearing seat, the limiting part comprises a first side plate, a second side plate and a first transverse plate, the two opposite ends of the first side plate respectively extend downwards to be provided with first contact pins, the second side plate is arranged on one side of the first side plate in parallel, a second contact pin extends downwards on the second side plate, the length of the first side plate is greater than that of the second side plate, the first transverse plate is connected with the first side plate and the second side plate, the width of the first transverse plate is the same as that of the conveyor belt so as to prevent stacked workpieces from advancing and falling into a conveying passage, and the second driving shaft passes through the first contact pin, the second driven shaft penetrates through the other first contact pin and the second contact pin, the conveying channel is arranged on the fourth base corresponding to the conveying belt, and the tail end of the conveying channel is provided with a blanking channel corresponding to the processing part;

a material blocking assembly is arranged on one side, close to the blanking channel, of the conveying channel and used for blocking workpieces from moving forward so that the workpieces can be blanked in order, a quantity sensor and an observation probe are arranged on the side, close to the material blocking assembly, of the conveying channel and used for calculating the number of the passing workpieces and observing the states of the workpieces, a vibration assembly is arranged on one side, far away from the blanking channel and used for vibrating the workpieces, of the conveying channel and located on the other side of the vibration assembly and corresponding to the conveying channel and a material box, and a lower slide way is arranged on the other side of the vibration assembly;

and a turnover mechanical arm is arranged on one side of the conveying channel.

2. The automatic sequencing tapping device for internal thread ball head parts according to claim 1, wherein the positioning fixture comprises a first support plate, a positioning cylinder and a positioning block, the first support plate is fixed on the first base, the positioning cylinder is fixed on the first support plate, a piston rod of the positioning cylinder is arranged towards the rotary table, and the piston rod of the positioning cylinder is connected with the positioning block.

3. The automatic sequencing tapping device for the internal thread ball head parts according to claim 2, wherein the positioning block comprises a first base body and a second base body which is formed on the first base body in a connected mode, the size of the first base body is matched with that of the first positioning groove, the first base body is movably arranged in the first positioning groove, the end face, facing the first matching block, of the first base body is set to be an arc face, the arc center, facing the end face of the first matching block, of the first base body is located on the same vertical axis as the arc center, facing the side wall of the machining groove, of the arc, the opposite ends of the second base body protrude out of the opposite ends of the first base body, the second base body is recessed towards the end face of the first matching block to form a first clamping groove, the groove wall of the first clamping groove is set to be an arc face, the arc center, facing the arc center, of the arc, facing the end face of the first matching block, of the first base body is located on the same vertical axis as the arc center, the opening of the first clamping groove is set to be an arc, the second clamping groove is set to be an arc facing the end face of the first base body, and the second clamping groove is set to be an inclined face of the positioning block, so that the piston rod is connected with the positioning clamp, and the piston rod is used for being connected with the cylinder.

4. The automatic sequencing and tapping device for the internal thread ball head parts according to claim 2, wherein the feeding assembly comprises a second base, a third base, a first driving motor, a first speed reducer, a first transmission mechanism and a chain plate, the second base is located beside the first base, the second base comprises a first support, a second support located right above the first support and a third support located obliquely above the second support, the third base is located on one side of the second base, the first driving motor and the first speed reducer are fixed on the third base, an output end of the first driving motor is connected with an input end of the first speed reducer through a first coupler, an output end of the first speed reducer is connected with the first transmission mechanism through a second coupler to drive the first transmission mechanism to move, the first transmission mechanism is respectively arranged on the first support and the third support, the chain plate is connected with the first transmission mechanism and forms a circular belt shape, the chain plate is obliquely arranged on the second base, a bottom end of the chain plate and a horizontal plane of the second transmission mechanism are respectively arranged on the first support and the third support, a feeding box sliding plate is arranged close to a top end of the second feeding box and is arranged on a horizontal plane and close to a top end of the second feeding box through a top end of the second coupler, and a bottom end of the feeding box is arranged on the second transmission mechanism, and a horizontal plane and a bottom end of the second feeding box.

5. The automatic sequencing tapping device for the internal thread ball head part according to claim 4, wherein the first transmission mechanism comprises a first bearing seat, a second bearing seat, a first driving shaft, a driving gear, a first driven shaft, a driven gear and a chain, the first bearing seat is symmetrically installed on the first support, the second bearing seat is symmetrically installed on the third support, the first driving shaft penetrates through and is supported in the first bearing seat which is symmetrically arranged, one end of the first driving shaft extends out of the first bearing seat and is connected with the output end of the first speed reducer, the driving gear is symmetrically sleeved on the first driving shaft, the first driven shaft penetrates through and is supported in the second shaft which is symmetrically arranged, the driven gear is symmetrically sleeved on the first driven shaft bearing seat, and the chain is respectively engaged with the driving gear and the driven gear and is connected with the chain plate;

transverse baffle plates are distributed on the chain plates at intervals and used for supporting workpieces;

and a limiting spring is transversely and obliquely arranged above the chain plate and on the second bracket and used for blocking the workpieces protruding or stacked on the transverse baffle plate from advancing, and the limiting spring is parallel to the chain plate.

6. The automatic sequencing and tapping device for the internal thread ball head parts according to claim 5, wherein the fixed point unit comprises a first three-axis mechanical arm and a first rotating motor, the first three-axis mechanical arm is arranged beside the turntable, the first rotating motor is arranged at the output end of the first three-axis mechanical arm, and the output end of the first rotating motor is connected with a fixed point drill bit;

the drilling unit comprises a second triaxial mechanical arm and a second rotating motor, the second triaxial mechanical arm is arranged on one side of the first triaxial mechanical arm, the second rotating motor is arranged at the output end of the second triaxial mechanical arm, and the output end of the second rotating motor is connected with a drilling bit;

the chamfering unit comprises a third triaxial mechanical arm and a third rotating motor, the third triaxial mechanical arm is arranged on one side of the second triaxial mechanical arm, the third rotating motor is arranged at the output end of the third triaxial mechanical arm, and the output end of the third rotating motor is connected with a chamfering drill bit;

the tapping unit comprises a fourth triaxial mechanical arm and a fourth rotating motor, the fourth triaxial mechanical arm is arranged on one side of the third triaxial mechanical arm, the fourth rotating motor is arranged at the output end of the fourth triaxial mechanical arm, and the output end of the fourth rotating motor is connected with a tapping drill bit.

7. A method for machining an internally threaded ball-end part by using the internally threaded ball-end part automatic sequencing and tapping device according to claim 6, comprising the steps of:

the internal thread ball head parts to be processed are intensively poured into a material box, the workpieces in the material box are extruded out of the material box due to the fact that the workpieces are too many, the workpieces just fall onto a chain plate at the moment, and the workpieces are supported by a transverse baffle plate;

when the chain plate moves to the topmost position and begins to fall, the workpiece falls into the conveyor belt due to the self gravity, the conveyor belt conveys the workpiece into the conveying channel, and finally the workpiece falls into the machining assembly from the blanking channel for tapping machining;

if the number of the workpieces in the conveying channel exceeds the volume space of the conveying channel, the vibration assembly can vibrate the redundant workpieces again to fall into the material box, and then the workpieces are fed again.

8. The method for machining an internally threaded ball head part according to claim 7, wherein the tapping comprises:

the turntable rotates clockwise, the processing part with the workpiece rotates to the position of a next positioning clamp, the positioning clamp fixes the workpiece in the processing part, the fixed point unit performs fixed point drilling marking on the upper surface of the workpiece, and after the marking is finished, the positioning clamp is released;

the turntable rotates clockwise to the position of a next positioning clamp, the positioning clamp fixes the workpiece in the machining part, the drilling unit drills holes at the position facing the mark on the workpiece, and after drilling is completed, the positioning clamp is released;

the rotary table rotates to the position of a next positioning clamp along the clockwise direction, the positioning clamp fixes the workpiece in the processing part, a chamfering unit performs chamfering processing on a drilling opening, a third three-axis mechanical arm drives a chamfering drill bit to be arranged on a hole site central axis of the workpiece, the distance between the lower edge of the chamfering drill bit and the hole site inner wall of the workpiece is set to be a first distance, the distance between the outer side surface of the chamfering drill bit and the hole site inner wall of the workpiece is set to be a second distance, the first distance is larger than the second distance at the moment, the chamfering drill bit is moved and the moving length is the second distance, the third three-axis mechanical arm drives the chamfering drill bit to rotate clockwise around the opening for five circles, the horizontal grinding distance of the chamfering drill bit to the opening of the workpiece is set to be a third distance, and chamfering preprocessing is completed; then moving the chamfering drill bit to perform sine wave type moving grinding along the chamfering angle along the clockwise direction; finally, the lower surface of the chamfering drill bit is attached to the upper surface of the workpiece for grinding, chamfering processing is completed, and the positioning clamp is loosened;

the carousel rotates to next positioning fixture position along the clockwise, and positioning fixture fixes the work piece in the processing portion, and the unit of attacking the screw is facing to drilling and is attacking the screw processing, and fourth triaxial arm drive is attacking the screw drill bit and is going out to rotate and offer out the screw at the drilling inner wall, accomplishes the processing back of attacking the screw, and positioning fixture loosens to the work piece unloading of accomplishing processing.

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