CN113370039B

CN113370039B - Sewing machine head processing and grinding device

Info

Publication number: CN113370039B
Application number: CN202110917202.2A
Authority: CN
Inventors: 张大鹏
Original assignee: Xinyi Pengli Machinery Co ltd
Current assignee: Xinyi Pengli Machinery Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-10-26
Anticipated expiration: 2041-08-11
Also published as: CN113370039A

Abstract

The invention relates to the technical field of sewing machine processing, in particular to a sewing machine head processing and polishing device which comprises a workbench, a fixing mechanism and a polishing mechanism, wherein the fixing mechanism and the polishing mechanism are arranged on the upper end surface of the workbench, the polishing mechanism comprises an inverted L-shaped frame plate, a hydraulic cylinder, an Contraband-shaped frame, a connecting plate, a triangular groove, a rotating shaft, a polishing belt, a motor and a pressing group, the polishing mechanism adopted by the invention tightly presses the polishing belt on the surface of a sewing machine head by utilizing an extrusion spring rod and a pressing ball, so that the polishing belt is tightly attached to the sewing machine head, the sewing machine head is effectively polished by the polishing belt, the problem that the sewing machine head is difficult to be fully polished due to the fact that the polishing belt is difficult to be tightly attached to the surface of the sewing machine head is avoided, and the adopted fixing mechanism can change the polishing surface under the premise of not disassembling the sewing machine head, the working efficiency is improved.

Description

Sewing machine head processing and grinding device

Technical Field

The invention relates to the technical field of sewing machine processing, in particular to a sewing machine head processing and polishing device.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material to enable one or more layers of sewing materials to be interwoven or sewn, and generally comprises a machine head, a machine base, a transmission part and an accessory part, wherein the machine head of the sewing machine is one of important components of the sewing machine, a plurality of burrs are generated outside during production and processing, and a grinding device is required to roughly grind the burrs on the surface of the machine head of the sewing machine, so that the workload of manually and finely grinding the machine head of the sewing machine is reduced.

But the following problems can occur in the processing and polishing process of the sewing machine head at present: 1. because the head of the sewing machine is of an uneven structure, when the surface of the head of the sewing machine is polished, the polishing belt is difficult to cling to the surface of the head of the sewing machine, so that the head of the sewing machine is difficult to be polished fully; 2. because the sewing machine aircraft nose is unevenness's structure, in order to improve the quality of polishing, generally only polish its single face at every turn, before polishing another face of sewing machine aircraft nose, need dismantle the sewing machine aircraft nose from fixed establishment, fix once more after adjusting the position appropriately, lead to frequently to rotate the sewing machine aircraft nose in order to adjust the face of polishing, the operation is comparatively loaded down with trivial details, has reduced work efficiency.

Disclosure of Invention

The technical scheme is as follows: in order to achieve the purpose, the invention adopts the following technical scheme that the sewing machine head processing and polishing device comprises a workbench, a fixing mechanism and a polishing mechanism, wherein the fixing mechanism and the polishing mechanism are installed on the upper end surface of the workbench.

The fixing mechanism comprises a sliding groove, a guide rod, a bidirectional threaded rod, a circular hole, a rotating rod, a vertical plate, a first clamping group and a second clamping group, the sliding groove is symmetrically arranged on the left and right of the upper end surface of the workbench, the guide rod is symmetrically and jointly installed on the left and right end surfaces of the sliding groove in the front and back direction, the left end surface of the left sliding groove is rotatably connected with the bidirectional threaded rod, the bidirectional threaded rod is positioned between the front and back guide rods, the communicated circular hole is formed between the left and right sliding grooves, the right end of the bidirectional threaded rod penetrates through the circular hole and the workbench, the rotating rod is installed on the right end of the bidirectional threaded rod, the vertical plate is installed between the front and back guide rods, the vertical plate is connected with the bidirectional threaded rod in a threaded fit manner, the first clamping group and the second clamping group are respectively installed on the opposite surfaces of the left and right vertical plates, the first clamping group and the second clamping group on the left and right opposite surfaces of the left and right vertical plates respectively clamp the left and right clamping groups of the sewing machine head, so as to prevent the sewing machine head from moving when being polished.

The polishing mechanism comprises an inverted L-shaped frame plate, a hydraulic cylinder, an Contraband-shaped frame, connecting plates, a triangular plate, triangular grooves, rotating shafts, a polishing belt, a motor and a propping group, the inverted L-shaped frame plate is installed on the upper end face of the workbench, the hydraulic cylinder is installed on the lower end face of the inverted L-shaped frame plate, a Contraband-shaped frame with a downward opening is installed on a moving rod of the hydraulic cylinder, the connecting plates are installed on the left lower end face and the right lower end face of the Contraband-shaped frame, the triangular plates are symmetrically installed between the two connecting plates in the front-back direction, the triangular grooves are formed in the front end face of the triangular plate positioned on the front side, three rotating shafts are rotatably connected between the front triangular plate and the rear triangular plate and are arranged in a triangular shape, the three rotating shafts are connected through the polishing belt in a transmission mode, the motor is installed on the rear end face of the triangular plate positioned on the rear side through a machine base, and the rear end of one rotating shaft is connected with an output shaft of the motor after penetrating through the triangular plate, set up between two set-squares in the front and back, support tight group and be located between the three axis of rotation, get rid of the burr on sewing machine aircraft nose surface, the triangular groove is convenient for the staff to observe supporting tight group to whether there is the damage to look over.

As a preferred technical scheme of the invention, the first clamping group comprises a rotary disc, a telescopic cylinder, a baffle, a placing cylinder, a push rod, clamping plates, a return spring, a contraction spring and an extrusion rod, wherein the right end surface of a vertical plate positioned on the left side is provided with a mounting groove, the rotary disc is rotatably connected in the mounting groove, the telescopic cylinder is fixedly mounted on the right end surface of the rotary disc, the baffle is mounted on the right end surface of the telescopic cylinder, the placing cylinder with a leftward opening is mounted on the right end surface of the baffle, moving grooves are formed in the inner wall of the placing cylinder at equal intervals along the circumferential direction, the push rod is connected in the moving grooves in a sliding manner, the clamping plates are mounted at one ends of the push rod, which are positioned on the outer side of the placing cylinder, the return spring is sleeved on the push rod, two ends of the return spring are respectively connected with the clamping plates and the placing cylinder, the contraction springs are symmetrically mounted between the baffle and the rotary disc from top to bottom, the right end surface of the baffle is provided with a through hole, and the extrusion rod is connected in the through hole in a sliding manner, the right end of the extrusion rod is of an arc-shaped structure, and the left end of the extrusion rod is connected with the rotary table.

As a preferred technical scheme of the invention, the second clamping group has substantially the same structure as the first clamping group, and the difference is that the size of the first clamping group is larger than that of the second clamping group, the clamping plate on the first clamping group is in an arc-shaped structure, the right end of the clamping plate is inclined towards the extrusion rod, the clamping plate on the second clamping group is in an arc-shaped structure and parallel to the extrusion rod, and the clamping plate is in an arc-shaped structure, so that the inner wall of the sewing machine head can be clamped conveniently, and the openings on the left side and the right side of the sewing machine head are different in size, so that the second clamping group and the first clamping group have the same structure but different sizes, and the sewing machine head can be clamped effectively.

As a preferred technical scheme of the invention, the tight-pressing group comprises a supporting plate, an extrusion spring rod, a lower pressing ball, a spring groove, a tension spring rod and a tension ball, the supporting plate is jointly installed between the front triangular plate and the rear triangular plate, the lower end surface of the supporting plate is provided with a first ball seat through the extrusion spring rod, the first ball seat is rotationally connected with the lower pressing ball, the extrusion spring rods are arranged in a matrix manner, the lower pressing ball is tightly pressed against the inner surface of the lower side of the polishing belt, the left end surface and the right end surface of the supporting plate are symmetrically provided with the spring groove, the inner wall of the spring groove is provided with a second ball seat through the tension spring rod, the second ball seat is rotationally connected with the tension ball, the tension spring rods are arranged at equal intervals from front to back, the tension balls at the left side and the right side are respectively tightly pressed against the inner surfaces of the left side and the right side of the polishing belt, the lower pressing ball pushes the polishing belt to be tightly pressed against the surface of the head of the sewing machine under the self elastic force of the extrusion spring rods, thereby make the polishing area closely laminate with the sewing machine aircraft nose surface to the polishing area carries out effectual polishing to the burr on sewing machine aircraft nose surface, has avoided because of sewing machine aircraft nose surface unevenness leads to the problem that the polishing area can not closely laminate with the sewing machine aircraft nose surface, when the elasticity through extrusion spring beam self promotes down the ball, the tensioning spring beam promotes the tensioning ball through the elasticity of self equally and carries out the tensioning to the polishing area, in order to avoid the polishing area lax.

According to a preferable technical scheme, a circular groove is formed in one end, away from an extrusion rod, of each of the left and right turntables, clamping grooves communicated with the circular groove are formed in the inner wall of the circular groove at equal intervals in the circumferential direction, a moving column is connected in the circular groove in a sliding mode, one end, away from the extrusion rod, of the moving column penetrates through a vertical plate, then a v-21274is installed on the outer wall of the moving column, clamping rods are installed on the outer wall of the moving column at equal intervals in the circumferential direction, the clamping rods are connected with the clamping grooves in a sliding mode, four limiting grooves are formed in the end face, away from the turntables, of the vertical plate at equal intervals in the circumferential direction, the moving column is close to the v-21274, four L-shaped limiting plates are installed on the outer wall of one end of the v-shaped pulling plate at equal intervals in the circumferential direction, the four L-shaped limiting plates are connected with the four limiting grooves in a sliding mode respectively, the moving column is pushed to enable the L-shaped limiting plates to enter the limiting grooves, and therefore the head of the sewing machine is prevented from rotating again in the polishing process.

As a preferred technical scheme of the invention, an extension spring is installed between the clamping rod and the clamping groove, and the extension spring has a certain contraction tension on the clamping rod, so that the L-shaped limiting plate is not easy to move out of the limiting groove, and has a limiting effect on the L-shaped limiting plate.

According to a preferred technical scheme, the front and the rear of the upper end face of the workbench are symmetrically provided with the blanking through grooves, the blanking through grooves are respectively positioned at the front side and the rear side of the bidirectional threaded rod, the end faces, close to the bidirectional threaded rod, of the blanking through grooves are of a downward inclined structure, and burrs ground from a machine head of a sewing machine fall downwards through the blanking through grooves so as to prevent the burrs from being left on the workbench.

As a preferred technical scheme, a collecting box is arranged below the workbench and is positioned right below the front blanking through groove and the rear blanking through groove, burrs falling from the blanking through grooves are collected by the collecting box, and the problem that the burrs scatter around is solved.

The grinding mechanism adopted by the invention has the beneficial effects that the grinding belt is tightly pressed on the surface of the sewing machine head by utilizing the extrusion spring rod and the lower pressing ball, so that the grinding belt is tightly attached to the sewing machine head, the sewing machine head is effectively ground by the grinding belt, the problem that the sewing machine head is difficult to be fully ground due to the fact that the grinding belt is difficult to be tightly attached to the surface of the sewing machine head is avoided, meanwhile, the adopted fixing mechanism can change the grinding surface on the premise of not dismounting the sewing machine head, and the working efficiency is improved.

2. When the pressing ball is pushed by the extrusion spring rod, the tensioning spring rod pushes the tensioning ball to tension the polishing belt due to the elasticity of the tensioning spring rod, and the problem that the polishing belt is loose is avoided.

3. Make L type limiting plate get into the spacing inslot through promoting the removal post to spacing moving the post, avoiding appearing the problem that the sewing machine aircraft nose rotated once more when polishing.

Drawings

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

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic cross-sectional view of the three-dimensional structure of the present invention.

Fig. 3 is a partial enlarged view of fig. 2 a of the present invention.

Fig. 4 is a schematic structural diagram of the turntable, the circular groove and the clamping groove of the invention.

Fig. 5 is a front sectional view of the present invention.

Fig. 6 is a partial enlarged view of the invention at B of fig. 5.

Fig. 7 is a partial enlarged view of the invention at C of fig. 5.

Fig. 8 is an enlarged view of a portion of the invention at D of fig. 5.

In the figure: 1. a work table; 2. a fixing mechanism; 3. a polishing mechanism; 20. a sliding groove; 21. a guide bar; 22. a bidirectional threaded rod; 23. a circular hole; 24. rotating the rod; 25. a vertical plate; 26. a first clamping group; 27. a second clamping group; 260. a turntable; 261. a telescopic cylinder; 262. a baffle plate; 263. placing the cylinder; 264. a push rod; 265. clamping a plate; 266. a return spring; 267. a retraction spring; 268. an extrusion stem; 30. an inverted L-shaped frame plate; 31. a hydraulic cylinder; 32. contraband type frame; 33. a connecting plate; 34. a set square; 35. a triangular groove; 36. a rotating shaft; 37. polishing the belt; 38. an electric motor; 39. a propping group; 390. a support plate; 391. extruding the spring rod; 392. pressing the ball; 393. a spring slot; 394. tensioning the spring rod; 395. a tensioning ball; 201. a circular groove; 202. a card slot; 203. moving the column; 204. \ 21274and a shaped pulling plate; 205. a clamping rod; 206. a limiting groove; 207. an L-shaped limiting plate; 208. an extension spring; 10. a blanking through groove; 11. and (4) collecting the box.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1, the sewing machine head processing and polishing device comprises a workbench 1, a fixing mechanism 2 and a polishing mechanism 3, wherein the fixing mechanism 2 and the polishing mechanism 3 are installed on the upper end face of the workbench 1.

Referring to fig. 1, 2 and 5, the fixing mechanism 2 includes a sliding groove 20, a guide bar 21, a two-way threaded rod 22, a circular hole 23, a rotating bar 24, an upright plate 25, a first clamping group 26 and a second clamping group 27, the sliding groove 20 is symmetrically formed on the left and right of the upper end surface of the workbench 1, the guide bar 21 is symmetrically installed on the left and right end surfaces of the sliding groove 20, the two-way threaded rod 22 is rotatably connected to the left end surface of the left sliding groove 20, the two-way threaded rod 22 is located between the front and rear guide bars 21, the circular hole 23 is formed between the left and right sliding grooves 20, the right end of the two-way threaded rod 22 penetrates through the circular hole 23 and the workbench 1, the rotating bar 24 is installed on the right end of the two-way threaded rod 22, the upright plate 25 is slidably installed between the front and rear guide bars 21, and the upright plate 25 is connected with the two-way of screw thread fit, control the opposite face of two risers 25 and install a chucking group 26 and No. two chucking group 27 respectively, in operation, put the sewing machine aircraft nose about back between two risers 25, drive two-way threaded rod 22 through rotating dwang 24 and rotate, two-way threaded rod 22 rotates through the threaded connection with riser 25, thereby drive the riser 25 of the left and right sides and remove to the sewing machine aircraft nose, a chucking group 26 and No. two chucking group 27 of two riser 25 opposite faces about respectively with the left and right sides chucking of sewing machine aircraft nose fixed, the situation that appears removing when avoiding the sewing machine aircraft nose to polish.

Referring to fig. 5, 7 and 8, the first clamping group 26 includes a rotary table 260, a telescopic cylinder 261, a baffle 262, a placing cylinder 263, a push rod 264, a catch plate 265, a return spring 266, a retraction spring 267 and a squeezing rod 268, a mounting groove is formed in the right end surface of the vertical plate 25 on the left side, the rotary table 260 is rotatably connected in the mounting groove, the telescopic cylinder 261 is fixedly mounted on the right end surface of the rotary table 260, the baffle 262 is mounted on the right end surface of the telescopic cylinder 261, the placing cylinder 263 with a leftward opening is mounted on the right end surface of the baffle 262, moving grooves are formed in the inner wall of the placing cylinder 263 at equal intervals in the circumferential direction, the push rod 264 is slidably connected in the moving grooves, the catch plate 265 is mounted at one end of the push rod 264 located outside the placing cylinder 263, the return spring 266 is sleeved on the push rod 264, two ends of the return spring 266 are respectively connected with the catch plate 265 and the placing cylinder 263, the retraction spring 267 is symmetrically mounted between the baffle 262 and the rotary table 260, the through hole has been seted up to the right-hand member face of baffle 262, sliding connection has the extrusion pole 268 in the through hole, and the right-hand member of extrusion pole 268 is the arc structure, and the left end of extrusion pole 268 is connected with carousel 260, No. two chucking group 27 and a chucking group 26 structure roughly the same, its difference only lies in the size of a chucking group 26 and is greater than the size of No. two chucking group 27, the cardboard 265 on a chucking group 26 is the structure of arc and right-hand member to the slope of extrusion pole 268, cardboard 265 on No. two chucking groups 27 is the arc and parallel structure with extrusion pole 268.

When the two vertical plates 25 move towards the sewing machine head, the vertical plates 25 drive the baffle 262 and the placing cylinder 263 to move through the telescopic cylinder 261, when the baffle 262 is tightly abutted against the sewing machine head, the vertical plates 25 continuously move towards the sewing machine head, at the moment, the telescopic cylinder 261 contracts, the extrusion rod 268 on the turntable 260 continuously moves along with the vertical plates 25 while the telescopic cylinder 261 contracts, the extrusion rod 268 moves to push and tightly abut the clamping plate 265 towards the inner wall of the sewing machine head through the push rod 264, so that the clamping plate 265 clamps and fixes the sewing machine head, the clamping plate 265 is of an arc structure, the inner wall of the sewing machine head is conveniently clamped, because the sizes of openings at the left side and the right side of the sewing machine head are different, the second clamping group 27 is the same as the first clamping group 26 in structure but different in size, the sewing machine head can be effectively clamped, a round hole for installing a rotating wheel is formed at the right end of the sewing machine head, consequently, cardboard 265 that adopts is the arc and with the parallel structure of extrusion pole 268, be convenient for with the sewing machine aircraft nose chucking, when the thick processing of polishing of sewing machine aircraft nose finishes needs take off, drive riser 25 through rotating dwang 24 and remove to the left and right sides, when riser 25 removes, shrink spring 267 extends and drives extrusion pole 268 and removes, after extrusion pole 268 removes, catch bar 264 and cardboard 265 are to placing a section of thick bamboo 263 shrink under reset spring 266's effect, no longer carry out the chucking to the sewing machine aircraft nose, in order to take out the sewing machine aircraft nose, organize 26 and two numbers of chucking through a chucking and organize the cooperation of 27 with the sewing machine aircraft nose chucking, avoid appearing the sewing machine aircraft nose unexpected removal when polishing and lead to the inaccurate problem in position of polishing.

Referring to fig. 1, 2 and 5, the polishing mechanism 3 includes an inverted L-shaped frame 30, a hydraulic cylinder 31, an Contraband-shaped frame 32, a connecting plate 33, a triangular plate 34, a triangular groove 35, a rotating shaft 36, a polishing belt 37, a motor 38 and a pressing group 39, the inverted L-shaped frame 30 is installed on the upper end surface of the worktable 1, the hydraulic cylinder 31 is installed on the lower end surface of the inverted L-shaped frame 30, the Contraband-shaped frame 32 with a downward opening is installed on a moving rod of the hydraulic cylinder 31, the connecting plates 33 are installed on both the left and right lower end surfaces of the Contraband-shaped frame 32, the triangular plates 34 are symmetrically installed in front and back between the two connecting plates 33, the triangular groove 35 is opened on the front end surface of the triangular plate 34 located on the front side, the three rotating shafts 36 are rotatably connected between the front and back triangular plates 34, the three rotating shafts 36 are arranged in a triangular shape, the three rotating shafts 36 are in transmission connection through the polishing belt 37, the motor 38 is installed on the rear end surface of the triangular plate 34 located on the rear side through a machine base, the rear end of one of the rotating shafts 36 penetrates through the triangular plates 34 and then is connected with an output shaft of the motor 38, a propping group 39 is arranged between the front triangular plate 34 and the rear triangular plate 34, the propping group 39 is positioned between the three rotating shafts 36, when the sewing machine head is fixed, the hydraulic cylinder 31 drives the polishing belt 37 between the front triangular plate 34 and the rear triangular plate 34 to move downwards through the Contraband-shaped frame 32 and the connecting plate 33 until the polishing belt 37 is attached to the surface of the sewing machine head, then the motor 38 is started, the motor 38 drives the rotating shaft 36 connected with the motor 38, and the rotating shaft 36 drives the polishing belt 37 to rotate, so that the surface of the sewing machine head is roughly polished by the polishing belt 37, burrs on the surface of the sewing machine head are removed, and the triangular grooves 35 are convenient for workers to observe the propping group 39 to check whether the sewing machine head is damaged.

Referring to fig. 5 and 6, the abutting group 39 includes a support plate 390, an extrusion spring rod 391, a press ball 392, a spring groove 393, a tension spring rod 394 and a tension ball 395, the support plate 390 is installed between the front and rear triangular plates 34, a first ball seat is installed on the lower end surface of the support plate 390 through the extrusion spring rod 391, the press ball 392 is connected in the first ball seat in a rotating manner, the extrusion spring rods 391 are arranged in a matrix, the press ball 392 abuts against the inner surface of the lower side of the polishing belt 37, the spring grooves 393 are symmetrically arranged on the left and right end surfaces of the support plate 390, a second ball seat is installed on the inner wall of the spring groove 393 through the tension spring rod 394, the tension ball 395 is connected in the second ball seat in a rotating manner, the tension spring rods 394 are arranged at equal intervals from front to back, the tension balls 395 on the left and right sides abut against the inner surfaces of the polishing belt 37, when the polishing belt 37 does not abut against the sewing machine head, the pressing spring rod 391 is in a maximum extension state, the pressing ball 392 can be pushed to be abutted against the lower end of the inner surface of the polishing belt 37, the elastic force of the tensioning spring rod 394 is smaller than that of the pressing spring rod 391, therefore, when the pressing spring rod 391 is in the maximum extension state, the tensioning spring rod 394 and the tensioning ball 395 are contracted towards the spring groove 393 under the extrusion action of the polishing belt 37, when the polishing belt 37 is close to the surface of the head of the sewing machine, the pressing ball 392 pushes the polishing belt 37 to be tightly attached to the surface of the head of the sewing machine under the elastic force of the pressing spring rod 391, so that the polishing belt 37 is tightly attached to the surface of the head of the sewing machine, burrs on the surface of the head of the sewing machine can be effectively polished by the polishing belt 37, the problem that the polishing belt 37 cannot be tightly attached to the surface of the head of the sewing machine due to the uneven surface of the head of the sewing machine is avoided, when the pressing spring rod 391 is used for pushing the pressing ball 392, the tensioning spring lever 394 also pushes the tensioning ball 395, by its own spring force, to tension the sanding belt 37 to prevent the sanding belt 37 from slackening.

Referring to fig. 1 and 2, the upper end face of the workbench 1 is symmetrical in front and back and is provided with a blanking through groove 10, the blanking through groove 10 is respectively located on the front side and the back side of a bidirectional threaded rod 22, the end face of the blanking through groove 10 close to the bidirectional threaded rod 22 is of a downward-inclined structure, burrs ground from the head of a sewing machine drop downwards through the blanking through groove 10, the problem that the burrs are remained on the workbench 1 is avoided, the end face of the blanking through groove 10 close to the bidirectional threaded rod 22 is of a downward-inclined structure, and therefore the burrs can be guided.

Referring to fig. 1 and 2, a collecting box 11 is disposed below the working table 1, the collecting box 11 is located right below the front and rear blanking through grooves 10, and the collecting box 11 is used for collecting burrs falling from the blanking through grooves 10 so as to prevent the burrs from scattering around.

Referring to fig. 4, 5, 7 and 8, a circular groove 201 is formed at one end of each of the left and right turntables 260 away from the extrusion rod 268, clamping grooves 202 communicated with the circular groove 201 are formed at equal intervals along the circumferential direction on the inner wall of the circular groove 201, a moving column 203 is connected in the circular groove 201 in a sliding manner, a v-21274is installed after one end of the moving column 203 away from the extrusion rod 268 penetrates through the vertical plate 25, a pull plate 204 is installed, clamping rods 205 are installed at equal intervals along the circumferential direction on the outer wall of the moving column 203, the clamping rods 205 are connected with the clamping grooves 202 in a sliding manner, four limiting grooves 206 are formed at equal intervals along the circumferential direction on the end face of the vertical plate 25 away from the turntables 260, the moving column 203 is close to the v-21274, four L-shaped limiting plates 207 are installed at equal intervals along the circumferential direction on the outer wall of one end of the pull plate 204, the four L-shaped limiting plates 207 are respectively connected with the four limiting grooves 206 in a sliding manner, when the grinding machine head is in operation, after one side surface of the grinding machine head is finished, through the \ 21274;, the moving column 203 is pulled by the shape pulling plate 204 to move, so that the L-shaped limiting plate 207 on the moving column 203 moves out of the limiting groove 206, then the moving column 203 is rotated by 90 degrees, the clamping rod 205 on the moving column 203 is positioned in the clamping groove 202, therefore, the moving column 203 rotates to drive the rotary table 260 to rotate, the rotary table 260 drives the sewing machine head to rotate, the surface of the sewing machine head which is not polished is opposite to the polishing belt 37, then the moving column 203 is pushed to enable the L-shaped limiting plate 207 to enter the limiting groove 206, and therefore the moving column 203 is limited, and the sewing machine head is prevented from rotating again in the polishing process.

Referring to fig. 7 and 8, an extension spring 208 is installed between the locking bar 205 and the locking slot 202, and the extension spring 208 has a certain contraction pulling force on the locking bar 205, so that the L-shaped position-limiting plate 207 is not easily moved out of the position-limiting groove 206, and the L-shaped position-limiting plate 207 is limited.

When the sewing machine head is placed between the left vertical plate 25 and the right vertical plate 25, the rotating rod 24 is rotated to drive the bidirectional threaded rod 22 to rotate, the bidirectional threaded rod 22 drives the vertical plates 25 on the left side and the right side to move towards the sewing machine head, the vertical plates 25 drive the baffle 262 and the placing cylinder 263 to move through the telescopic cylinder 261, when the baffle 262 abuts against the sewing machine head tightly, the vertical plates 25 continue to move towards the sewing machine head, the telescopic cylinder 261 shrinks at the moment, the extrusion rod 268 on the rotary table 260 continues to move along with the vertical plates 25 while the telescopic cylinder 261 shrinks, the extrusion rod 268 moves in the process of pushing the clamping plate 265 to push against the inner wall of the sewing machine head tightly through the pushing rod 264, and therefore the clamping plate 265 is fixed with the sewing machine head.

Secondly, after the sewing machine head is fixed, the hydraulic cylinder 31 drives the polishing belt 37 between the front and the rear triangular plates 34 to move downwards through the Contraband-shaped frame 32 and the connecting plate 33, when the polishing belt 37 approaches to the surface of the sewing machine head, the pressing balls 392 push the polishing belt 37 to cling to the surface of the sewing machine head under the action of the elastic force of the pressing spring rods 391, so that the polishing belt 37 is tightly attached to the surface of the sewing machine head, the polishing belt 37 can effectively polish burrs on the surface of the sewing machine head, the problem that the polishing belt 37 cannot be tightly attached to the surface of the sewing machine head due to the uneven surface of the sewing machine head is solved, when the pressing balls 392 are pushed by the elastic force of the pressing spring rods 391, the tensioning spring rods 394 push the tensioning balls 395 to tension the polishing belt 37 due to the own elastic force, the problem that the polishing belt 37 is loosened is avoided, and then the motor 38 is started, the motor 38 drives the rotating shaft 36 connected with the motor to rotate, the rotating shaft 36 drives the polishing belt 37 to rotate, the polishing belt 37 can perform rough polishing on the surface of the sewing machine head, burrs on the surface of the sewing machine head are removed, and the triangular groove 35 is convenient for workers to observe the abutting group 39 so as to check whether damage exists.

Thirdly, after the surface of one side of the sewing machine head is polished, the L-shaped limiting plate 207 on the moving column 203 is moved out of the limiting groove 206 by pulling the moving column 203 through the v-21274by the shape pulling plate 204, then the moving column 203 is rotated for 90 degrees, the clamping rod 205 on the moving column 203 is positioned in the clamping groove 202, therefore, the moving column 203 can drive the turntable 260 to rotate, the turntable 260 drives the sewing machine head to rotate, the surface of the sewing machine head which is not polished is opposite to the polishing belt 37, then the moving column 203 is pushed to enable the L-shaped limiting plate 207 to enter the limiting groove 206, and therefore the moving column 203 is limited, and the sewing machine head is prevented from rotating again when being polished.

The fourth step, when the sewing machine aircraft nose need be taken off after the operation of polishing finishes, drive riser 25 through rotating dwang 24 and remove to the left and right sides, when riser 25 removes, shrink spring 267 extends and drives the extrusion stem 268 and removes, after the extrusion stem 268 removed, catch bar 264 and cardboard 265 shrink to placing a 263 orientation under the effect of reset spring 266, no longer carry out the chucking to the sewing machine aircraft nose, take out the back with the sewing machine aircraft nose, the rethread existing equipment carries out the finish machining to the sewing machine aircraft nose and polishes the processing.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a sewing machine aircraft nose processing grinding device, includes workstation (1), fixed establishment (2) and grinding machanism (3), its characterized in that: the upper end surface of the workbench (1) is provided with a fixing mechanism (2) and a polishing mechanism (3);

the fixing mechanism (2) comprises a sliding groove (20), guide rods (21), a bidirectional threaded rod (22), a circular hole (23), a rotating rod (24), a vertical plate (25), a first clamping group (26) and a second clamping group (27), the sliding groove (20) is symmetrically formed in the left and right of the upper end face of the workbench (1), the guide rods (21) are symmetrically formed in the front and back of the left and right end faces of the sliding groove (20), the left end face of the left sliding groove (20) is rotatably connected with the bidirectional threaded rod (22), the bidirectional threaded rod (22) is located between the front guide rod and the rear guide rod (21), the circular hole (23) is formed in the space between the left sliding groove and the rear sliding groove (20), the right end of the bidirectional threaded rod (22) penetrates through the circular hole (23) and the workbench (1), the rotating rod (24) is installed at the right end of the bidirectional threaded rod (22), the vertical plate (25) is installed between the front guide rod and the rear guide rod (21), the vertical plates (25) are connected with the bidirectional threaded rod (22) in a threaded fit mode, and a first clamping group (26) and a second clamping group (27) are respectively installed on the opposite surfaces of the left vertical plate (25) and the right vertical plate (25);

the polishing mechanism (3) comprises an inverted L-shaped frame plate (30), a hydraulic cylinder (31), an Contraband-shaped frame (32), connecting plates (33), a triangular plate (34), a triangular groove (35), a rotating shaft (36), a polishing belt (37), a motor (38) and a support group (39), wherein the inverted L-shaped frame plate (30) is installed on the upper end face of the workbench (1), the hydraulic cylinder (31) is installed on the lower end face of the inverted L-shaped frame plate (30), a Contraband-shaped frame (32) with a downward opening is installed on a moving rod of the hydraulic cylinder (31), the connecting plates (33) are installed on the left lower end face and the right lower end face of the Contraband-shaped frame (32), the triangular plate (34) is symmetrically installed between the two connecting plates (33) in the front-back direction, the triangular groove (35) is formed in the front end face of the triangular plate (34) positioned on the front side, and three rotating shafts (36) are connected between the front triangular plate and rear triangular plates (34), the three rotating shafts (36) are arranged in a triangular shape, the three rotating shafts (36) are in transmission connection through a grinding belt (37), the rear end face of the triangular plate (34) positioned on the rear side is provided with a motor (38) through a machine base, the rear end of one rotating shaft (36) penetrates through the triangular plate (34) and then is connected with an output shaft of the motor (38), a pressing group (39) is arranged between the front triangular plate and the rear triangular plate (34), and the pressing group (39) is positioned between the three rotating shafts (36);

the first clamping group (26) comprises a rotary disc (260), a telescopic cylinder (261), a baffle (262), a placing cylinder (263), a push rod (264), a clamping plate (265), a reset spring (266), a contraction spring (267) and an extrusion rod (268), wherein the right end face of the vertical plate (25) positioned on the left side is provided with a mounting groove, the mounting groove is rotationally connected with the rotary disc (260), the right end face of the rotary disc (260) is fixedly provided with the telescopic cylinder (261), the baffle (262) is arranged on the right end face of the telescopic cylinder (261), the placing cylinder (263) with a leftward opening is arranged on the right end face of the baffle (262), moving grooves are formed in the inner wall of the placing cylinder (263) at equal intervals along the circumferential direction, the push rod (264) is connected in the moving grooves in a sliding mode, the clamping plate (265) is arranged at one end, which is positioned on the outer side of the placing cylinder (263), the push rod (264) is sleeved with the reset spring (266), the two ends of the reset spring (266) are respectively connected with the clamping plate (265) and the placing cylinder (263), the contraction springs (267) are symmetrically arranged between the baffle plate (262) and the rotating disc (260) from top to bottom, a through hole is formed in the right end face of the baffle plate (262), an extrusion rod (268) is connected in the through hole in a sliding mode, the right end of the extrusion rod (268) is of an arc-shaped structure, and the left end of the extrusion rod (268) is connected with the rotating disc (260);

the abutting group (39) comprises a supporting plate (390), a pressing spring rod (391), a lower pressing ball (392), a spring groove (393), a tensioning spring rod (394) and a tensioning ball (395), front and back two set-square (34) between install backup pad (390) jointly, the lower terminal surface of backup pad (390) installs the ball seat No. one through extrusion spring pole (391), the internal rotation of ball seat is connected with down presses ball (392), extrusion spring pole (391) are the matrix and arrange, press ball (392) and press the downside internal surface of area (37) to support tightly down, spring groove (393) have been seted up to both ends face symmetry about backup pad (390), the inner wall of spring groove (393) is installed No. two ball seats through tensioning spring pole (394), No. two ball seat internal rotation is connected with tensioning ball (395), tensioning spring pole (394) equidistance are arranged backward in the past, the tensioning ball (395) of the left and right sides supports tightly with the left and right sides internal surface of area (37) respectively.

2. The sewing machine head processing grinding device as claimed in claim 1, wherein: the structure of the second clamping group (27) is approximately the same as that of the first clamping group (26), the difference is that the size of the first clamping group (26) is larger than that of the second clamping group (27), the clamping plates (265) on the first clamping group (26) are of arc-shaped structures, the right ends of the clamping plates incline to the extrusion rods (268), and the clamping plates (265) on the second clamping group (27) are of arc-shaped structures parallel to the extrusion rods (268).

3. The sewing machine head processing grinding device as claimed in claim 2, wherein: carousel (260) keep away from the one end of extrusion pole (268) and seted up circular recess (201), draw-in groove (202) rather than being linked together are seted up along circumference equidistance to the inner wall of circular recess (201), sliding connection has removal post (203) in circular recess (201), remove post (203) and keep away from the one end of extrusion pole (268) and run through riser (25) and install after install \21274, shape arm-tie (204), the outer wall of removal post (203) is installed kelly (205) along circumference equidistance, sliding connection between kelly (205) and draw-in groove (202), the terminal surface that carousel (260) were kept away from in riser (25) has seted up four spacing grooves (206) along carousel (260) circumference equidistance, it is close to \\21274toremove post (203), four L type limiting plates (207) are installed along circumference equidistance to the one end outer wall of shape arm-tie (204), sliding connection between four L type limiting plates (207) and four spacing grooves (206) respectively.

4. A sewing machine head machining grinding device according to claim 3, characterized in that: and an extension spring (208) is arranged between the clamping rod (205) and the clamping groove (202) together.

5. The sewing machine head processing grinding device as claimed in claim 1, wherein: the blanking through grooves (10) are symmetrically formed in the front and back of the upper end face of the workbench (1), and the blanking through grooves (10) are respectively located on the front side and the back side of the bidirectional threaded rod (22).

6. The sewing machine head processing grinding device as claimed in claim 5, wherein: a collecting box (11) is placed below the workbench (1), and the collecting box (11) is located right below the front blanking through groove (10) and the rear blanking through groove (10).