CN112091777A

CN112091777A - Groove polishing equipment for threaded end of bar

Info

Publication number: CN112091777A
Application number: CN202011036282.2A
Authority: CN
Inventors: 吴功城
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2020-12-18

Abstract

The invention relates to the field of part polishing, in particular to groove polishing equipment for a threaded end of a bar material, which comprises a workbench, an annular polishing assembly, a material moving carrier and a feeding mechanism, wherein the annular polishing assembly, the material moving carrier and the feeding mechanism are arranged on the workbench, the annular polishing assembly comprises a rotary driving mechanism, a first translation mechanism and a grinding head, the grinding head is arranged at the output end of the rotary driving mechanism, the material moving carrier comprises a second translation mechanism and a clamp, the second translation mechanism and the first translation mechanism are distributed in a vertical state, the clamp is arranged at the top of the second translation mechanism, the feeding mechanism comprises a material platform, a material pushing mechanism and a horizontal pushing mechanism, the material pushing mechanism is arranged at one end of the material platform, and the horizontal pushing mechanism is fixedly arranged. According to the invention, the grinding head is driven to move along the path of the spiral line through the matching of the annular grinding assembly and the first translation mechanism, so that the thread grooves of the parts are uniformly ground, the parts are conveyed through the material moving carrier and the feeding mechanism, the production efficiency is improved, and the automatic processing is realized.

Description

Groove polishing equipment for threaded end of bar

Technical Field

The invention relates to the field of part polishing, in particular to a groove polishing device for a threaded end of a bar material.

Background

The part processing refers to a process of changing the external dimension or performance of a part through a mechanical device, and the part processing can be divided into cutting processing and grinding processing according to the difference of processing modes. The polishing process refers to a process of polishing and smoothing the formed part. However, in the prior art, because the shapes of some non-standard parts are special, the parts to be ground are also special, and the traditional grinding equipment cannot effectively grind and polish the parts, for example, the thread groove of one end of some medium-sized bars with a threaded end still needs to be polished after being milled by machining, which is the reason that the traditional equipment cannot grind the thread groove of the bar, so that the equipment capable of grinding the thread groove of the bar needs to be designed.

Disclosure of Invention

For solving the technical problem, the groove polishing equipment for the bar threaded end is provided, and the technical scheme solves the problem of polishing the groove of the bar threaded end of a part.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a groove polishing device for a threaded end of a bar comprises a workbench, an annular polishing assembly arranged on the workbench, a material moving carrier and a feeding mechanism, wherein the annular polishing assembly comprises a rotary driving mechanism, a first translation mechanism and a grinding head, the first translation mechanism is fixedly arranged at one end of the top of the workbench, the rotary driving mechanism is fixedly arranged at the top of the first translation mechanism, the grinding head is fixedly arranged at the output end of the rotary driving mechanism, the material moving carrier comprises a second translation mechanism and a clamp, the second translation mechanism is arranged on one side of the first translation mechanism, the second translation mechanism and the first translation mechanism are distributed in a vertical state, the clamp is arranged at the top of the second translation mechanism, the feeding mechanism comprises a material platform, a material pushing mechanism and a horizontal pushing mechanism, the first translation mechanism and the material platform are respectively positioned on the same side of the second mechanism, and the material pushing mechanism is arranged at one end of the material platform far away from the top, the horizontal pushing mechanism is fixedly arranged at one end, close to the annular polishing assembly, of the material platform, the output direction of the horizontal pushing mechanism is perpendicular to the length direction of the material platform, and the length direction of the material platform is consistent with the length direction of the second translation mechanism.

Preferably, the rotary driving mechanism comprises a first motor, a lantern ring, a belt wheel, a belt, a first support, a second support and two semicircle embracing rings, the first motor is fixed to be set up in the output of first translation mechanism, the lantern ring sets up in the one end that first motor was kept away from in first translation mechanism, first motor is parallel to each other with the lantern ring, the both ends of two semicircle embracing rings are through the bolt circle of closing, the outer fringe of lantern ring is equipped with the annular that holds two semicircle embracing rings and belt, the upper end of first support and second support is respectively through bolt fixed connection with the outside of two semicircle embracing rings, the lower extreme of first support and second support and the top fixed connection of first translation mechanism, the output shaft of first motor is located to the belt pulley cover, the belt cover is located in the annular of belt pulley and the lantern ring.

Preferably, the first translation mechanism comprises a first sliding table, a first screw rod, a supporting plate, a second motor, two first linear sliding rails and two first supporting side plates, the two first supporting side plates are parallel to each other and are distributed on the workbench at intervals, the first screw rod is positioned between the two first supporting side plates, and the both ends of first lead screw respectively with two first support curb plate coupling, the second motor is fixed to be set up in the outside of keeping away from the support curb plate of second translation mechanism, the output shaft of second motor links to each other with the one end of first lead screw, two first linear slide rails are located the both sides of first lead screw respectively, two first linear slide rails are parallel with first lead screw, the both ends bottom of first slip table respectively with two first linear slide rail sliding connection, the bottom and the first lead screw thread of first slip table link to each other, the fixed backup pad of installing at first slip table top that is equipped with in the top of first slip table.

Preferably, the clamp comprises a third motor and a three-jaw chuck, the third motor is fixedly arranged at the output end of the second translation mechanism, the three-jaw chuck is in a vertical state, the bottom of the three-jaw chuck is connected with an output shaft of the third motor,

preferably, the second translation mechanism comprises a fourth motor, a second sliding table, a second screw rod, two second linear sliding tables, two second supporting side plates of two second supporting side plates, two second supporting side plates of the two second linear sliding tables and the two second supporting side plates are parallel to each other and distributed on the workbench at intervals, the second screw rod is located between the two second supporting side plates, two ends of the second screw rod are respectively in shaft connection with the two second supporting side plates, the fourth motor is fixedly arranged on the outer side of one supporting side plate close to the first translation mechanism, an output shaft of the fourth motor is connected with one end of the second screw rod, the two second linear sliding rails are respectively located on two sides of the second screw rod, the two second linear sliding rails are parallel to the second screw rod, the bottoms of two ends of the second sliding tables are respectively in sliding connection with the two second linear sliding rails, the bottom of the second sliding tables.

Preferably, the one end that pushing equipment was kept away from to the material platform is equipped with a mechanism of turning down, turns down the mechanism and includes down turns over board and first cylinder, turns over the bottom of board down and articulate through bottom with the material platform, and the tail end of first cylinder leads to articulatedly with the bottom of material platform and the bottom of turning down the board respectively with the head end, and the heavy groove that is used for holding bar screw thread head end and tail end is seted up to the both sides of material platform.

Preferably, pushing equipment includes the fifth motor, the third lead screw, the third slip table, push pedal and two third support curb plates, two third support curb plates are parallel to each other and are interval distribution on the material bench, the length direction of two third support curb plates is perpendicular with the length direction of material platform, the third lead screw is located between two third support curb plates, and the both ends of third lead screw respectively with two third support curb plate coupling, the fifth motor is fixed to be set up in the outside of keeping away from one support curb plate of turn-down mechanism, the output shaft of fifth motor links to each other with the one end of third lead screw, the bottom and the third lead screw threaded connection of third slip table, the both ends of third slip table and the inboard laminating of shell of pay-off structure, the push pedal is fixed to be set up in the top of third slip table, the one end of push pedal extends to the support curb plate and is close to the one side of turn.

Preferably, the horizontal pushing mechanism comprises a sixth motor, a baffle, a connecting rod, a third support, a fourth support, a fifth support and a second cylinder, the third support is located at one end, far away from the second horizontal moving mechanism, of the lower turning plate, the fourth support is located at the middle part, close to the outer side of the first horizontal moving mechanism, of the lower turning plate, the fifth support is fixedly arranged at one end, close to the third support and far away from the first horizontal pushing mechanism, the sixth motor is fixedly arranged on the upper portion of the third support, the direction of an output shaft of the sixth motor is perpendicular to the length direction of the material table, the baffle is arranged at one end, close to the lower turning plate, of the upper portion of the second support, the connecting rod penetrates through the bottom of the baffle and the upper portion of the third support to be connected with the output shaft of the sixth motor, the second cylinder is fixedly arranged on the.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the grinding head is driven to move along the path of the spiral line through the matching of the annular grinding assembly and the first translation mechanism, so that the thread grooves of the parts are uniformly ground, the parts are conveyed through the material moving carrier and the feeding mechanism, the production efficiency is improved, and the automatic processing is realized.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic perspective view of the rotary driving mechanism of the present invention;

FIG. 4 is a schematic perspective view of a material-moving carrier according to the present invention;

FIG. 5 is a partial perspective view of the present invention;

FIG. 6 is a schematic perspective view of the horizontal pushing mechanism of the present invention;

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

fig. 8 is an enlarged view of the invention at a in fig. 7.

Description of the drawings: the grinding device comprises a workbench 1, an annular grinding component 2, a material moving carrier 3, a feeding mechanism 4, a rotary driving mechanism 5, a first translation mechanism 6, a grinding head 7, a second translation mechanism 8, a clamp 9, a material table 10, a material pushing mechanism 11, a translation pushing mechanism 12, a first motor 13, a lantern ring 14, a belt wheel 15, a belt 16, a first bracket 17, a second bracket 18, two semicircular hoops 19, an annular groove 20, a first sliding table 21, a first screw rod 22, a supporting plate 23, a second motor 24, two first linear slide rails 25, two first supporting side plates 26, a third motor 27, a three-jaw chuck 28, a fourth motor 29, a second sliding table 30, a second screw rod 31, two second linear slide rails 32, two second supporting side plates 33, a downward turning mechanism 34, a downward turning plate 35, a first air cylinder 36, a first sunken groove 37, a second sunken groove 38, a fifth motor 39, a third screw rod 40, a third sliding table 41 and a push plate 42, two third supporting side plates 43, a shell 44, a sixth motor 45, a baffle 46, a connecting rod 47, a third bracket 48, a fourth bracket 49, a fifth bracket 50, a second air cylinder 51 and an industrial camera 52.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1 to 8, a groove polishing device for a threaded end of a bar material comprises a workbench 1, an annular polishing assembly 2, a material moving carrier 3 and a feeding mechanism 4, wherein the annular polishing assembly 2 is arranged on the workbench 1, the annular polishing assembly 2 comprises a rotary driving mechanism 5, a first translation mechanism 6 and a grinding head 7, the first translation mechanism 6 is fixedly arranged at one end of the top of the workbench 1, the rotary driving mechanism 5 is fixedly arranged at the top of the first translation mechanism 6, the grinding head 7 is fixedly arranged at the output end of the rotary driving mechanism 5, the material moving carrier 3 comprises a second translation mechanism 8 and a clamp 9, the second translation mechanism 8 is arranged at one side of the first translation mechanism 6, the second translation mechanism 8 is vertically distributed with the first translation mechanism 6, the clamp 9 is arranged at the top of the second translation mechanism 8, the feeding mechanism 4 comprises a material platform 10, a material pushing mechanism 11 and a pushing mechanism 12, the first translation mechanism 6 and the material platform 10 are respectively located on the same side of the second mechanism, the material pushing mechanism 11 is arranged at one end, away from the top of the annular polishing component 2, of the material platform 10, the horizontal pushing mechanism 12 is fixedly arranged at one end, close to the annular polishing component 2, of the material platform 10, the output direction of the horizontal pushing mechanism 12 is perpendicular to the length direction of the material platform 10, and the length direction of the material platform 10 is consistent with the length direction of the second translation mechanism 8. Firstly, a part is placed on a material platform 10 of a feeding mechanism 4, then a material pushing mechanism 11 on the feeding mechanism pushes the part to a horizontal pushing mechanism 12, then a clamp 9 is conveyed to the horizontal pushing mechanism 12 through a second horizontal moving mechanism 8, the horizontal pushing mechanism 12 pushes the part to the clamp 9, the clamp 9 drives the part to move to the initial position of the clamp 9, namely the annular polishing assembly 2 through the second horizontal moving mechanism 8, then the annular polishing assembly 2 moves towards the clamp 9 through a first horizontal moving mechanism 6, the rotating mechanism drives a polishing head 7 to perform circular motion, meanwhile, the first horizontal moving mechanism 6 drives the polishing head 7 to perform horizontal movement in the axial direction of the part, and therefore polishing of a thread groove on the part is achieved.

The rotary driving mechanism 5 comprises a first motor 13, a lantern ring 14, a belt wheel 15, a belt 16, a first support 17, a second support 18 and two semicircular hooping rings 19, the first motor 13 is fixedly arranged at the output end of the first translation mechanism 6, the lantern ring 14 is arranged at one end, far away from the first motor 13, of the first translation mechanism 6, the first motor 13 is parallel to the lantern ring 14, two ends of the two semicircular hooping rings 19 are in bolted circle connection, the outer edge of the lantern ring 14 is provided with a ring groove 20 for accommodating the two semicircular hooping rings 19 and the belt 16, the upper ends of the first support 17 and the second support 18 are respectively in bolted fixed connection with the outer sides of the two semicircular hooping rings 19, the lower ends of the first support 17 and the second support 18 are fixedly connected with the top of the first translation mechanism 6, the belt wheel 15 is sleeved on the output shaft of the first motor 13, and the belt 16 is sleeved in the belt wheel 15 and the ring groove 20 of the lantern. The first motor 13 drives the collar 14 to rotate through the cooperation of the belt 16 and the belt wheel 15, and the two semicircular hoops 19 on the collar 14 are connected with the first bracket 17 and the second bracket 18 which are fixed on the top of the first translation mechanism 6, so that the collar 14 is ensured not to generate axial offset in the rotating process. The grinding heads 7 fixedly provided at the output end of the rotary drive mechanism 5 are made to perform a circular motion by the rotating collars 14.

The first translation mechanism 6 comprises a first sliding table 21, a first screw rod 22, a support plate 23, a second motor 24, two first linear slide rails 25 and two first support side plates 26, wherein the two first support side plates 26 are parallel to each other and are distributed on the workbench 1 at intervals, the first screw rod 22 is positioned between the two first support side plates 26, two ends of the first screw rod 22 are respectively connected with the two first support side plates 26 in a shaft manner, the second motor 24 is fixedly arranged on the outer side of the support side plate far away from the second translation mechanism 8, an output shaft of the second motor 24 is connected with one end of the first screw rod 22, the two first linear slide rails 25 are respectively positioned on two sides of the first screw rod 22, the two first linear slide rails 25 are parallel to the first screw rod 22, the bottoms of two ends of the first sliding table 21 are respectively connected with the two first linear slide rails 25 in a sliding manner, the bottom of the first sliding table 21 is connected with the first screw rod 22 in a threaded manner, the top of the first sliding table 21 is fixedly provided with a supporting plate 23 installed on the top of the first sliding table 21. The first screw rod 22 is driven to rotate by the second motor 24, the first sliding table 21 in threaded connection with the first screw rod 22 is driven to move on the two first linear sliding rails 25 by the rotation of the first screw rod 22, so that the first translation mechanism 6 is enabled to translate on the workbench 1, and the rotary driving mechanism 5 is moved to the position of the clamp 9 to be in contact with the outer end of the thread groove of the part and to be ready for polishing. The grinding head 7 of the circular motion is continuously driven to move forwards through the first translation mechanism 6 in the grinding process, so that the grinding head 7 in the circular motion state can be screwed into the threaded groove from the outer end of the threaded groove, the threaded groove is ground, after the grinding head 7 moves forwards to finish grinding the threaded groove once, the rotary driving mechanism 5 stops and drives the grinding head 7 to perform circular motion in the opposite direction, meanwhile, the first translation mechanism 6 drives the grinding head 7 of the reverse circular motion to move backwards until the threaded groove of the part pushed out by one circle, and then the grinding process is finished once again, and the threaded groove of each part needs to be subjected to the grinding processes of forward movement and reverse movement of the grinding head 7 for two times.

The clamp 9 comprises a third motor 27 and a three-jaw chuck 28, the third motor 27 is fixedly arranged at the output end of the second translation mechanism 8, and the three-jaw chuck 28 is in a vertical state and the bottom of the three-jaw chuck is connected with the output shaft of the third motor 27. The third motor 27 is connected with the three-jaw chuck 28 through being fixed at the output end of the second translation mechanism 8, so that the three-jaw chuck 28 can drive the part to rotate.

The second translation mechanism 8 comprises a fourth motor 29, a second sliding table 30, a second screw rod 31, two second linear sliding tables and two second supporting side plates 33, the two second supporting side plates 33 are parallel to each other and are distributed on the workbench 1 at intervals, the second screw rod 31 is positioned between the two second supporting side plates 33, and both ends of the second screw rod 31 are respectively coupled with two second supporting side plates 33, the fourth motor 29 is fixedly arranged at the outer side of one supporting side plate close to the first translation mechanism 6, an output shaft of the fourth motor 29 is connected with one end of the second screw rod 31, two second linear slide rails 32 are respectively positioned at both sides of the second screw rod 31, the two second linear slide rails 32 are parallel to the second screw rod 31, the bottoms of both ends of the second sliding table 30 are respectively connected with the two second linear slide rails 32 in a sliding manner, the bottom of the second sliding table 30 is connected with the second screw rod 31 in a threaded manner, and the clamp 9 for moving materials is arranged at the top of the second sliding table 30. The fourth motor 29 drives the second screw rod 31 to rotate, the second screw rod 31 rotates to enable the second sliding table 30 in threaded connection with the second screw rod to move on the two second linear sliding rails 32, so that the second translation mechanism 8 translates on the workbench 1, and the clamp 9 fixedly arranged on the second translation mechanism 8 moves the part from the feeding mechanism 4 to the annular polishing assembly 2 through the second translation mechanism 8 for polishing.

One end of the material platform 10, which is far away from the material pushing mechanism 11, is provided with a downward turning mechanism 34, the downward turning mechanism 34 comprises a downward turning plate 35 and a first air cylinder 36, the bottom of the downward turning plate 35 is hinged to the bottom of the material platform 10, the tail end and the head end of the first air cylinder 36 are hinged to the bottom of the material platform 10 and the bottom of the downward turning plate 35 respectively, first heavy grooves 37 for accommodating the head end and the tail end of the bar thread are formed in two sides of the material platform 10, and a second heavy groove 38 for accommodating the bar thread end is formed in one side, which is close to the first air cylinder 36, of the top of the downward turning plate 35. The width of the second undercut 38 is greater than the length of the threaded end of the part. The sinking groove on the material platform 10 is used for positioning the bar stock placed therein, so that the bar stock is kept in a vertical state in the material platform 10 with the material platform 10, and the pushing mechanism 11 can push the bar stock to roll forwards in the material platform 10. And image recognition is carried out on the bar stock through an industrial camera 52 at the tail end of the stock table 10, and if the bar stock is recognized to have a large defect, the first air cylinder 36 is contracted so as to drive the lower turning plate 35 to turn downwards, so that the part falls downwards. Because the diameters of the two ends of the part are larger than the diameter of the middle part, the part cannot move axially when being positioned in the first sinking groove 37, and therefore the width of the second sinking groove 38 is larger than the width of the thread end of the bar, so as to ensure that the horizontal pushing mechanism 12 can push the bar to move axially until the end of the bar is caught by the three-jaw chuck 28.

The pushing mechanism 11 comprises a fifth motor 39, a third screw 40, a third sliding table 41, a push plate 42 and two third supporting side plates 43, the two third supporting side plates 43 are parallel to each other and are distributed on the material table 10 at intervals, the length direction of the two third supporting side plates 43 is perpendicular to the length direction of the material table 10, the third screw 40 is positioned between the two third supporting side plates 43, and the both ends of the third lead screw 40 are connected with two third supporting side plates 43 by axle respectively, the fifth motor 39 is fixedly arranged on the outer side of one supporting side plate far away from the downward turning mechanism 34, the output shaft of the fifth motor 39 is connected with one end of the third lead screw 40, the bottom of the third sliding table 41 is in threaded connection with the third lead screw 40, the both ends of the third sliding table 41 are attached to the inner side of the shell 44 of the feeding structure, the push plate 42 is fixedly arranged on the top of the third sliding table 41, and one end of the push plate 42 extends to one side of the supporting side plate close to the downward turning mechanism 34. The fifth motor 39 drives the third screw 40 to rotate, and the third screw 40 rotates to enable the third sliding table 41 in threaded connection with the third screw to horizontally move on the material table 10, so as to drive the push plate 42 fixed on the third sliding table 41 to push a plurality of parts in the material table 10 to roll and move forward towards the lower turning plate 35.

The horizontal pushing mechanism 12 comprises a sixth motor 45, a baffle 46 and a connecting rod 47, the third support 48 is located at one end, far away from the second translation mechanism 8, of the lower turning plate 35, the fourth support 49 is located at the middle portion, close to the outer side of the first translation mechanism 6, of the lower turning plate 35, the fifth support 50 is fixedly arranged at one end, close to the third support 48 and far away from the first translation mechanism 12, the sixth motor 45 is fixedly arranged at the upper portion of the third support 48, the direction of an output shaft of the sixth motor 45 is perpendicular to the length direction of the material table 10, the baffle 46 is arranged at one end, close to the lower turning plate 35, of the upper portion of the second support 18, the connecting rod 47 penetrates through the bottom of the baffle 46 and the upper portion of the third support 48 to be connected with the output shaft of the sixth motor 45, the second air cylinder 51 is fixedly arranged on the fifth support 50, and the output direction of the second air cylinder 51 is perpendicular to the length direction of the material table 10. When the horizontal pushing mechanism 12 pushes the end of the bar stock to the three-jaw chuck 28 and is received, the sixth motor 45 drives the baffle 46 to rotate through the connecting rod 47, so that the baffle 46 rotates from a vertical state to a horizontal state, and the second horizontal moving mechanism 8 drives the three-jaw chuck 28 to clamp the part and is not blocked by the baffle 46 when the part moves to the annular grinding mechanism. The second cylinder 51 is fixed above the worktable 1 by being fixed on the fifth bracket 50, and the output end of the second cylinder 51 extends to push the part to move towards the three-jaw chuck 28, so that the three-jaw chuck 28 can clamp the part.

The working principle of the invention is as follows:

firstly, a part is placed on a material platform 10 of a feeding mechanism 4, then a material pushing mechanism 11 on the feeding mechanism pushes the part to roll and move forwards in a first sinking groove 37 of the material platform 10 until the part is positioned on a second sinking groove 38 of a lower turning plate 35 at a position of a horizontal pushing mechanism 12, the part is limited to continue to move forwards by a baffle 46 of the horizontal pushing mechanism 12, the part cannot move axially when positioned in the first sinking groove 37 because the diameters of two ends of the part are larger than the diameter of the middle part, therefore, the width of the second sinking groove 38 is larger than the width of a thread end of a bar stock, the part is conveniently pushed by the horizontal pushing mechanism 12 to move axially, then a clamp 9 is conveyed to the position of the horizontal pushing mechanism 12 by a second horizontal moving mechanism 8, then the clamp 9 is conveyed to the position of the horizontal pushing mechanism 12 by the second horizontal moving mechanism 8, image recognition is carried out on the bar stock by an industrial camera 52 at the tail end of the material platform 10, if the defect of the, the first air cylinder 36 contracts to drive the lower turning plate 35 to turn downwards, so that the part falls downwards, and if the part meets the processing standard, the second air cylinder 51 pushes the bar to move axially until the end of the bar is caught by the three-jaw chuck 28;

step two, when the output end of the second cylinder 51 extends out to push the part to move towards the three-jaw chuck 28 so that the three-jaw chuck 28 can clamp the part, the sixth motor 45 drives the baffle plate 46 to rotate through the connecting rod 47, so that the baffle plate 46 rotates from a vertical state to a horizontal state, the second translation mechanism 8 drives the three-jaw chuck 28 to clamp the part to move towards the annular polishing mechanism without being blocked by the baffle plate 46, then the three-jaw chuck 28 fixedly arranged on the second translation mechanism 8 moves the part from the feeding mechanism 4 to the annular polishing assembly 2 through the second translation mechanism 8, and the third motor 27 rotates the part fixed on the three-jaw chuck 28 through the three-jaw chuck 28;

step three, when the part is moved to the annular polishing component 2 through the second translation mechanism 8, the first translation mechanism 6 moves the rotary driving mechanism 5 to the position of the three-jaw chuck 28 to be in contact with the outer end of the thread groove of the part and prepare for polishing, the polishing head 7 performs circular motion through the rotary mechanism, the first translation mechanism 6 drives the polishing head 7 to perform translation in the axial direction of the part, the polishing head 7 performing circular motion is continuously driven to move forwards through the first translation mechanism 6 in the polishing process, so that the polishing head 7 in the circular motion state can be screwed into the thread groove from the outer end of the thread groove, the thread groove is polished, when the polishing head 7 moves forwards to polish the thread groove once, the rotary driving mechanism 5 stops and then drives the polishing head 7 to perform circular motion in the opposite direction, and meanwhile, the first translation mechanism 6 drives the polishing head 7 performing reverse circular motion to move backwards until the thread groove of one circle of pushed out part, and then finish a polishing process again, the thread groove of each part needs to pass grinding processes of forward movement and backward movement of the grinding head 7 for two times;

step four, after polishing is finished, the third motor 27 stops rotating, the three-jaw chuck 28 opens, and the worker takes out the part.

The foregoing has described the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A groove polishing device for a threaded end of a bar material is characterized by comprising a workbench (1), an annular polishing assembly (2), a material moving carrier (3) and a feeding mechanism (4), wherein the annular polishing assembly (2) is arranged on the workbench (1), the annular polishing assembly (2) comprises a rotary driving mechanism (5), a first translation mechanism (6) and a grinding head (7), the first translation mechanism (6) is fixedly arranged at one end of the top of the workbench (1), the rotary driving mechanism (5) is fixedly arranged at the top of the first translation mechanism (6), the grinding head (7) is fixedly arranged at the output end of the rotary driving mechanism (5), the material moving carrier (3) comprises a second translation mechanism (8) and a clamp (9), the second translation mechanism (8) is positioned at one side of the first translation mechanism (6), and the second translation mechanism (8) and the first translation mechanism (6) are distributed in a vertical state, the clamp (9) is arranged at the top of the second translation mechanism (8), the feeding mechanism (4) comprises a material platform (10), a material pushing mechanism (11) and a horizontal pushing mechanism (12), the first translation mechanism (6) and the material platform (10) are respectively located on the same side of the second mechanism, the material pushing mechanism (11) is arranged at one end, away from the top of the annular polishing component (2), of the material platform (10), the horizontal pushing mechanism (12) is fixedly arranged at one end, close to the annular polishing component (2), of the material platform (10), the output direction of the horizontal pushing mechanism (12) is perpendicular to the length direction of the material platform (10), and the length direction of the material platform (10) is consistent with the length direction of the second translation mechanism (8).

2. The groove grinding equipment for the threaded end of the bar material according to claim 1, wherein the rotary driving mechanism (5) comprises a first motor (13), a sleeve ring (14), a belt wheel (15), a belt (16), a first support (17), a second support (18) and two semicircular hooping rings (19), the first motor (13) is fixedly arranged at the output end of the first translation mechanism (6), the sleeve ring (14) is arranged at one end of the first translation mechanism (6) far away from the first motor (13), the first motor (13) and the sleeve ring (14) are parallel to each other, two ends of the two semicircular hooping rings (19) are fastened by bolts, a ring groove (20) for accommodating the two semicircular hooping rings (19) and the belt (16) is arranged at the outer edge of the sleeve ring (14), the upper ends of the first support (17) and the second support (18) are respectively and fixedly connected with the outer sides of the two semicircular hooping rings (19) by bolts, the lower ends of the first support (17) and the second support (18) are fixedly connected with the top of the first translation mechanism (6), the belt wheel (15) is sleeved on an output shaft of the first motor (13), and the belt (16) is sleeved in the ring grooves (20) of the belt wheel (15) and the lantern ring (14).

3. The groove grinding device for the threaded end of the bar according to claim 1, wherein the first translation mechanism (6) comprises a first sliding table (21), a first screw rod (22), a support plate (23), a second motor (24), two first linear slide rails (25) and two first support side plates (26), the two first support side plates (26) are parallel to each other and are distributed on the workbench (1) at intervals, the first screw rod (22) is positioned between the two first support side plates (26), two ends of the first screw rod (22) are respectively connected with the two first support side plates (26) through shafts, the second motor (24) is fixedly arranged on the outer side of the support side plate far away from the second translation mechanism (8), an output shaft of the second motor (24) is connected with one end of the first screw rod (22), the two first linear slide rails (25) are respectively positioned on two sides of the first screw rod (22), two first linear slide rails (25) are parallel to the first screw rod (22), the bottoms of the two ends of the first sliding table (21) are respectively in sliding connection with the two first linear slide rails (25), the bottom of the first sliding table (21) is in threaded connection with the first screw rod (22), and a supporting plate (23) arranged at the top of the first sliding table (21) is fixedly arranged at the top of the first sliding table (21).

4. A groove grinding apparatus for threaded ends of bars according to claim 1, characterized in that the clamp (9) comprises a third motor (27) and a three-jaw chuck (28), the third motor (27) being fixedly arranged at the output of the second translation mechanism (8), the three-jaw chuck (28) being in a vertical position and its bottom being connected to the output shaft of the third motor (27).

5. The groove grinding equipment for the threaded end of the bar material according to claim 1, wherein the second translation mechanism (8) comprises a fourth motor (29), a second sliding table (30), a second screw rod (31), two second linear slide rails (32) and two second supporting side plates (33), the two second supporting side plates (33) are parallel to each other and are distributed on the workbench (1) at intervals, the second screw rod (31) is positioned between the two second supporting side plates (33), two ends of the second screw rod (31) are respectively connected with the two second supporting side plates (33) in a shaft way, the fourth motor (29) is fixedly arranged at the outer side of one supporting side plate close to the first translation mechanism (6), an output shaft of the fourth motor (29) is connected with one end of the second screw rod (31), the two second linear slide rails (32) are respectively positioned at two sides of the second screw rod (31), the two second linear sliding rails (32) are parallel to the second screw rod (31), the bottoms of the two ends of the second sliding table (30) are respectively in sliding connection with the two second linear sliding rails (32), the bottom of the second sliding table (30) is in threaded connection with the second screw rod (31), and the top of the second sliding table (30) is provided with a clamp (9) for moving materials.

6. The groove grinding equipment for the threaded ends of the bars according to claim 1, wherein one end of the material table (10) far away from the material pushing mechanism (11) is provided with a downward turning mechanism (34), the downward turning mechanism (34) comprises a downward turning plate (35) and a first air cylinder (36), the bottom of the downward turning plate (35) is hinged to the bottom of the material table (10), the tail end and the head end of the first air cylinder (36) are hinged to the bottom of the material table (10) and the bottom of the downward turning plate (35) respectively, first sinking grooves (37) used for containing the head end and the tail end of the threaded ends of the bars are formed in two sides of the material table (10), and a second sinking groove (38) used for containing the threaded ends of the bars is formed in one side, close to the first air cylinder (36), of the top of the downward turning plate (35).

7. The groove grinding equipment for the threaded ends of the bars according to claim 6, characterized in that the material pushing mechanism (11) comprises a fifth motor (39), a third screw rod (40), a third sliding table (41), a push plate (42) and two third supporting side plates (43), the two third supporting side plates (43) are parallel to each other and distributed on the material table (10) at intervals, the length direction of the two third supporting side plates (43) is perpendicular to the length direction of the material table (10), the third screw rod (40) is positioned between the two third supporting side plates (43), two ends of the third screw rod (40) are respectively connected with the two third supporting side plates (43) through shafts, the fifth motor (39) is fixedly arranged on the outer side of one supporting side plate far away from the downward turning mechanism (34), an output shaft of the fifth motor (39) is connected with one end of the third screw rod (40), and the bottom of the third sliding table (41) is in threaded connection with the third screw rod (40), the two ends of the third sliding table (41) are attached to the inner side of a shell (44) of the feeding structure, the push plate (42) is fixedly arranged at the top of the third sliding table (41), and one end of the push plate (42) extends to one side of the supporting side plate close to the downward turning mechanism (34).

8. The groove grinding equipment for the threaded end of the bar material according to claim 6, wherein the horizontal pushing mechanism (12) comprises a sixth motor (45), a baffle (46), a connecting rod (47), a third bracket (48), a fourth bracket (49), a fifth bracket (50) and a second air cylinder (51), the third bracket (48) is positioned at one end, far away from the second horizontal moving mechanism (8), of the lower turning plate (35), the fourth bracket (49) is positioned at the middle part of the outer side, close to the first horizontal moving mechanism (6), of the lower turning plate (35), the fifth bracket (50) is fixedly arranged at one end, close to the third bracket (48), far away from the first horizontal pushing mechanism (12), the sixth motor (45) is fixedly arranged at the upper part of the third bracket (48), the direction of an output shaft of the sixth motor (45) is perpendicular to the length direction of the material platform (10), the baffle (46) is arranged at one end, close to the lower turning plate (35), of the upper part of the second bracket (18), the connecting rod (47) penetrates through the bottom of the baffle (46) and the upper part of the third support (48) to be connected with an output shaft of the sixth motor (45), the second air cylinder (51) is fixedly arranged on the fifth support (50), and the output direction of the second air cylinder (51) is perpendicular to the length direction of the material table (10).