CN208759058U - Sewing machine head shell processing device - Google Patents

Abstract

The utility model discloses a kind of head of sewing machine shell processing unit (plant)s, including vertical machining center, positioning fixture, it is fixed with turntable and turntable tailstock on the vertical processing machine tool and turntable is driven by power section, bridge plate is connected between turntable and turntable tailstock, base plate is equipped on bridge plate, positioning fixture is assemblied on base plate, positioning fixture includes bottom plate, multiple first pin holes equidistantly distributed are offered on base plate, multiple first screw holes, accordingly, equally offered on the bottom plate of positioning fixture with multiple first pin holes one by one up and down corresponding second pin hole, multiple corresponding second screw holes up and down one by one with the first screw hole, by across multiple lock screws of upper and lower corresponding first screw hole and the second screw hole so as to be detachably fixed positioning fixture and base plate, realize being switched fast for positioning fixture, it improves Working efficiency, reduces labor intensity.

Description

Head of sewing machine shell processing unit (plant)

Technical field

The utility model relates to a kind of head of sewing machine shell processing unit (plant)s, belong to sewing machine processing equipment field.

Background technique

Head is the major part of sewing machine, generally by thorn material, hook line, take-up, four mechanisms of feeding and coiling, binder, Luo Yadeng auxiliary body composition, the movement of each mechanism reasonably cooperate, and cycle operation unites by a seam sewing.Casing is head The core component of processing, it altogether there are four face, i.e., the face A (facing to the side of operator when sewing operation), the face B (face A The back side), mounting surface, top surface, in the prior art mainly by head spindle hole, head mounting surface positioning process, or pass through Mounting surface, shank lower stage terrace and two pin hole positioning processes.The distance of different head positioning pins is different, is changing different model Head when or replacement machined surface (manufacturing procedure) when, need to disassemble the positioning fixture of preceding processes, then replace At the fixture of next procedure, fixture handoff procedure is time-consuming and laborious, and positioning can only process a face of handpiece case every time, when After four face completion of processing, needs repeatedly manually overturning and relocate, in the clamping and release process of head, time-consuming consumption Power, clamping efficiency is low, also influences machining accuracy.

Summary of the invention

In view of the deficiency of the prior art, the purpose of the utility model is to provide a kind of designs of structure more to close Reason, a kind of higher head of sewing machine shell processing unit (plant) of machining accuracy.

To achieve the above object, the technical solution adopted in the utility model: a kind of head of sewing machine shell processing unit (plant), packet Vertical machining center, positioning fixture are included, turntable and turntable tailstock and turntable are fixed on the vertical processing machine tool by moving The driving of power part, bridge plate is connected between turntable and turntable tailstock, base plate is equipped on bridge plate, positioning fixture is assemblied in base On plinth plate, positioning fixture includes bottom plate, which is characterized in that offered on base plate multiple first pin holes equidistantly distributed, Multiple first screw holes accordingly equally offer corresponding up and down one by one with multiple first pin holes on the bottom plate of positioning fixture Second pin hole, multiple corresponding second screw holes up and down one by one with the first screw hole, by passing through upper and lower corresponding first screw hole and the Multiple lock screws of two screw holes realize quickly cutting for positioning fixture so as to be detachably fixed between positioning fixture and base plate It changes.

Above-mentioned positioning fixture further includes pressing device, two positioning pins, the face B positioning convex platform, wherein the both ends of plate top surface It is respectively fixed with head head pressing device, head tail portion pressing device, in the bottom plate for being located at head head pressing device side On be fixed with the face B head positioning pin, be located at head tail portion pressing device side bottom plate on be fixed with the face B tail portion positioning pin, The face B positioning convex platform there are two wherein being fixed in the two sides of the face B head positioning pin；Two face B positioning convex platforms and the face B head positioning pin (isosceles) triangle is constituted, the face B head positioning pin and the face B tail portion positioning pin are on same straight line.

Above-mentioned head head pressing device includes fixed block, link block and press strip, and wherein fixed block is fixed on bottom plate, Link block is the square block that centre is provided with slot, is fixed on fixed block after having a screw rod to pass through link block and is located on screw rod Nut is threaded with above link block, to realize the connection of link block and fixed block；Block is correspondingly connected on fixed block The position of slot is further fixed on fixed pin, and return spring is cased on fixed pin, and the upper end of return spring is fixed on link block, The lower end of return spring is fixed on fixed block；The inner end of link block is fixed with press strip, press strip be " Jiong " type and press strip across Degree is adapted with the width of head and column connecting portion；The pressure surface and the face B location hole of press strip are on same straight line.

Above-mentioned head tail portion pressing device includes supporting block, briquetting, and wherein supporting block is fixed on bottom plate, and briquetting is centre It is provided with the square block of slot, the upper square thread of briquetting is fixed in supporting block and be located on screw rod after having a screw rod to pass through briquetting It is connected with nut, to realize the connection of briquetting and supporting block；The position that briquetting slot is corresponded in supporting block is further fixed on admittedly Rationed marketing is cased with return spring on fixed pin, and the upper end of return spring is fixed on briquetting bottom surface, and the lower end of return spring is fixed On supporting block top surface；The inner end of briquetting is fixed with compression boss, and the pressure surface and the face B location hole of compression boss are in always On line.

Compared with prior art, the utility model has the beneficial effects that

1, by opening up the first screw hole equidistantly distributed, the first pin hole by standard on base plate, at positioning fixture bottom The second screw hole, the second pin hole equidistantly distributed also is processed by standard on plate, and ensures the phase of positioning fixture bottom plate with base plate Adjacent two pin holes or screw hole distance are consistent, when changing product or changing process, only all lock screws need to be loosened, by last time product Or the positioning fixture of process is removed, then changes the positioning fixture of next product or process, and passes through that corresponding group pin of insertion The positioning pin in hole (upper and lower corresponding first pin hole, the second pin hole), realizes the positioning to handpiece case different location, to realize Being switched fast and using for positioning fixture, improves work efficiency, reduces labor intensity；

2, by two positioning pins, two face B locating platforms and two pressing devices on positioning fixture, by handpiece case The face B carry out positioning and clamping, then by overturning positioning fixture, realize the face A of handpiece case, the primary dress of mounting surface and top surface Folder processing, effectively increases processing efficiency, while also ensuring machining accuracy.

Detailed description of the invention

Fig. 1 is the utility model overall structure diagram

Fig. 2 is the structure top view of base plate described in the utility model

Fig. 3 is the structural schematic diagram of positioning fixture described in the utility model

The structural schematic diagram of Fig. 4 the utility model head head pressing device

Fig. 5 is the structural schematic diagram of the utility model head tail portion pressing device.

Specific embodiment

Now in conjunction with attached drawing, the utility model is further elaborated.

As shown in Figure 1-3, this practical new head of sewing machine shell processing unit (plant), including vertical machining center 4, Positioning fixture 1, is fixed with turntable 2 and turntable tailstock 3 on vertical processing machine tool 4 and turntable 2 by power section driving realizes 360 ° Overturning, bridge plate 5 is connected between turntable 2 and turntable tailstock 3, i.e., the inside of turntable 2 and turntable tailstock 3 pass through screw or It is to be welded with L-type bridge plate 5, is equipped with base plate 6, locating clip by way of screw or welding on two L-type bridge plates 5 Tool 1 is assemblied on base plate 6, and positioning fixture 1 includes bottom plate 1.1, and multiple first equidistantly distributed are offered on base plate 6 Pin hole 6.1, multiple first screw holes 6.2 accordingly equally offer and multiple first pin holes on the bottom plate 1.1 of positioning fixture 1 6.1 corresponding second pin holes, multiple corresponding second screw holes up and down one by one with the first screw hole 6.2 up and down one by one, guarantee locating clip Tool 1 is consistent with pin hole or screw hole the spacing setting of base plate；By passing through upper and lower corresponding first screw hole 6.2 and the second screw hole 1.12 multiple lock screws between positioning fixture 1 and base plate 6 so as to be detachably fixed, and correspond to certain two groups of pin by being inserted into The positioning pin (such as 1.4,1.5) in hole (every group of pin hole is upper and lower corresponding first pin hole, the second pin hole) is with the face B to handpiece case Positioning, to realize being switched fast for positioning fixture.

Positioning fixture 1 includes bottom plate 1.1, and two pressing devices 1.2,1.3, two positioning pins 1.4,1.5, two faces B are determined Position boss 1.6, it is that head head compresses dress respectively that the both ends of 1.1 top surface of insole board are fixed there are two pressing device 1.2,1.3 1.2, head tail portion pressing device 1.3 is set, is fixed with the face B head on the bottom plate 1.1 for being located at 1.2 side of head head pressing device Portion's positioning pin 1.4 is fixed with the face B tail portion positioning pin 1.5 on the bottom plate 1.1 for being located at 1.3 side of head tail portion pressing device, In in the two sides of the face B head positioning pin 1.4, fixed there are two the face B positioning convex platforms 1.6；Two face B positioning convex platforms 1.6 and the face B head Portion's positioning pin 1.4 constitutes an isosceles triangle, and the face B head positioning pin 1.4 and the face B tail portion positioning pin 1.5 are in same straight line On.

Head head pressing device 1.2 includes fixed block 1.21, link block 1.22 and press strip 1.23, wherein fixed block 1.21 are fixed on bottom plate 1.1, and link block 1.22 is the square block that centre is provided with slot, have one first screw rod 1.24 to pass through connection It is fixed on after block 1.22 on fixed block 1.21 and the top on the first screw rod 1.24 positioned at link block 1.22 is threaded with the One nut 1.25, to realize the connection of link block 1.22 Yu fixed block 1.21；Block 1.22 is correspondingly connected on fixed block 1.21 The position of slot is further fixed on fixed pin, is cased with the first return spring 1.26 on fixed pin, the first return spring 1.26 it is upper End is fixed on link block 1.22, and the lower end of return spring 1.26 is fixed on fixed block 1.21；The inner end of link block 1.22 It is fixed with press strip 1.23, press strip 1.23 is " Jiong " type and the span of press strip 1.23 and the width of head and column connecting portion are mutually fitted It answers；The pressure surface and head of sewing machine B face location hole of press strip 1.23 are on same straight line.

Head tail portion pressing device 1.3 includes supporting block 1.31, briquetting 1.32, and wherein supporting block 1.31 is fixed on bottom plate On 1.1, briquetting 1.32 is the square block that centre is provided with slot, is fixed on support after having one second screw rod 1.33 to pass through briquetting 1.32 It is located above briquetting on block 1.31 and on the second screw rod 1.33 and is threaded with the second nut 1.34, to realizes briquetting 1.32 with the connection of supporting block 1.31；The position that 1.32 slot of briquetting is corresponded in supporting block 1.31 is further fixed on fixed pin, The second return spring 1.35 is cased on fixed pin, the upper end of the second return spring 1.35 is fixed on 1.32 bottom surface of briquetting, and second The lower end of return spring 1.35 is fixed on 1.31 top surface of supporting block；The inner end of briquetting 1.32 is fixed with compression boss 1.36, The pressure surface and head of sewing machine B face location hole of compression boss 1.36 are on same straight line.

In use, the face head B to be processed is placed on bottom plate 1.1, and with being already inserted into corresponding two groups of pins up and down Two positioning pins 1.4 in hole, 1.5, the face B positioning convex platform realize plane and two pits positioning to the face handpiece case B, then again by turning The effect of platform and turntable seat realizes that clamped one time processes three faces: the face A, mounting surface and top surface, improves processing efficiency and accurate Degree.

Claims (4)

1. The sewing machine head shell processing device includes a vertical machining center machine tool and a positioning fixture. A turntable and a turntable tailstock are fixed on the vertical machining center machine tool, and the turntable is driven by the power part, and is connected between the turntable and the turntable tailstock. There is a bridge board, a base board is assembled on the bridge board, the positioning fixture is assembled on the base board, and the positioning fixture includes a bottom plate, which is characterized in that a plurality of first pin holes and a plurality of first pin holes and a plurality of first pin holes and a plurality of first pin holes and a plurality of first pin holes and a plurality of first pin holes and Correspondingly, the bottom plate of the positioning fixture is also provided with second pin holes corresponding to the first pin holes one-to-one and up and down, and a plurality of second screw holes corresponding to the first screw holes one-to-one. A plurality of locking screws passing through the upper and lower corresponding first screw holes and the second screw holes can be detachably fixed between the positioning fixture and the base plate, so as to realize the rapid switching of the positioning fixture. 2 . The sewing machine head shell processing device according to claim 1 , wherein the positioning fixture further comprises a pressing device, two positioning pins, and a positioning boss on the B side, wherein the two ends of the top surface of the bottom plate are respectively fixed to the machine head. 3 . For the head pressing device and the nose and tail pressing device, the B-face head positioning pin is fixed on the base plate on the side of the head pressing device, and it is fixed on the bottom plate on the side of the head and tail pressing device. There are B-face tail positioning pins, and two B-face positioning bosses are fixed on both sides of the B-face head positioning pins; the B-face positioning bosses and the B-face head positioning pins form a triangle, and the B-face head The locating pin and the B-side tail locating pin are on the same line. 3. The sewing machine head shell processing device according to claim 2, wherein the head head pressing device comprises a fixing block, a connecting block and a bead, wherein the fixing block is fixed on the bottom plate, and the connecting block is the middle A square block with a slotted hole, a screw rod passes through the connecting block and is fixed on the fixing block, and a nut is threaded on the screw rod above the connecting block, so as to realize the connection between the connecting block and the fixing block; the corresponding connection on the fixing block The position of the block slot hole is also fixed with a fixing pin, a return spring is sleeved on the fixing pin, the upper end of the return spring is fixed on the connecting block, and the lower end of the return spring is fixed on the fixing block; the inner end of the connecting block is fixed with a The bead is of "冂" type, and the span of the bead is adapted to the width of the connection between the machine head and the column; the bead's pressing surface and the B-side positioning hole are on the same line. 4. The sewing machine head shell processing device according to claim 2 or 3, wherein the head and tail pressing device comprises a support block and a pressure block, wherein the support block is fixed on the bottom plate, and the pressure block is opened in the middle. A square block with a slotted hole has a screw rod that passes through the pressure block and is fixed on the support block, and a nut is threaded on the screw rod above the pressure block, so as to realize the connection between the pressure block and the support block; the corresponding pressure block on the support block The position of the slot hole is also fixed with a fixing pin, and a return spring is sleeved on the fixing pin, the upper end of the return spring is fixed on the bottom surface of the pressure block, and the lower end of the return spring is fixed on the top surface of the support block; the inner end of the pressure block A pressing boss is fixed, and the pressing surface of the pressing boss is on the same line as the positioning hole on the B surface.