CN202052894U - Automatic cold heading machine of tail hole - Google Patents
Automatic cold heading machine of tail hole Download PDFInfo
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- CN202052894U CN202052894U CN2011201107756U CN201120110775U CN202052894U CN 202052894 U CN202052894 U CN 202052894U CN 2011201107756 U CN2011201107756 U CN 2011201107756U CN 201120110775 U CN201120110775 U CN 201120110775U CN 202052894 U CN202052894 U CN 202052894U
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- upsetting
- inserting plate
- automatic cold
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Abstract
The utility model discloses an automatic cold heading machine of a tail hole, which comprises a casting box, a large centre, a punch, a transmission system driving the punch to upset twice, and an upsetting limit mechanism, wherein a large centre sleeve is sleeved on the large centre; the upsetting limit mechanism comprises an inserting plate and an inserting plate driving mechanism; a sliding slot adaptive to the appearance of the inserting plate is arranged on the left end surface of the casting box; a U-shaped opening is arranged at the lower end of the inserting plate; a milling flat surface matched with the U-shaped opening of the inserting plate is arranged on the large centre sleeve; and when the punch is driven by the transmission mechanism to firstly upset a work piece, the inserting plate is moved to the lowest end of the upsetting limit mechanism, and the U-shaped opening is inserted on the milling flat surface at the right end of the large centre sleeve. According to the automatic cold heading machine of the tail hole, when the head of the work piece is firstly upset and formed, the inserting plate is moved downwards to block a master mold spacing sleeve; when the tail hole of the work piece is secondarily upset and formed, the inserting plate is moved upwards and is detached from the master mold spacing sleeve, and a master mold has a drawing-back space. Therefore, a punching and upsetting force can be ensured when the head or a shrinkage rod part of the work piece is formed, and the problem that the size of the work piece cannot meet the size requirement of a drawing frequently is solved.
Description
Technical field
The utility model relates to pressing equipment, is specifically related to the uropore automatic cold header.
Background technology
The uropore automatic cold header is an equipment of making end tubular rivet or other similar products with the cold-heading method, goods in same mould through dash for twice upset be shaped after, by cutting agency it is released mould, fall into hopper.
But, when using the bigger tubular rivet of existing uropore automatic cold header processing head dimensions as shown in Figure 1 (rivet coiled hair diameter D1 is greater than four times of the diameter D2 of bar portion), perhaps process when the semi-hollow of structure contracts riveting pin as shown in Figure 2, the rivet head or the bar spot size that contracts often do not reach the drawing dimensional requirement, cause product defective, its reason is: product shown in Figure 1, and the required stamping press of moulding head is bigger, and product shown in Figure 2, the moulding required forming force in bar position that contracts is bigger.The elastic force of the back-moving spring of existing uropore rivet driver is big inadequately, thick impulse force is greater than the elastic force of back-moving spring during punching press, and mould retreats in the journey slightly breaking through, and little thimble 331 withstands raw material again, make raw material can not enter in-mold molding smoothly, thereby product size is dashed upset not in place.If strengthen the elastic force of back-moving spring, smart towards the time mould can not retreat again, uropore dashes not come out again.Therefore, produce, use the cold headers of multistation as Fig. 1 or rivet shown in Figure 2, and the cold headers of multistation, the die cost height, dress mould debugging trouble, mould very easily damages, and is very high to operator's competency profiling, causes the increase of production cost.
The utility model content
Technical problem to be solved in the utility model is when solving the uropore automatic cold header processing larger-size tubular rivet of rivet head or semi-hollow and contracting riveting pin, and the rivet head or the bar spot size that contracts often do not reach the problem of drawing dimensional requirement.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted provides a kind of uropore automatic cold header, comprise the moulding box that is arranged on the fuselage, big thimble, big thimble resetting-mechanism, transmission system and upsetting position-limit mechanism that drift and the realization of driving drift move left and right are carried out twice upsetting to workpiece, described moulding box is fixed on the left surface of fuselage, big thimble and drift lay respectively at the left and right sides of moulding box, described upsetting position-limit mechanism comprises plate and drives on the plate, mobile down plate driving mechanism, the left side of described moulding box is provided with and the suitable chute of plate profile, plate places in the described chute, the lower end of plate is provided with the U-shaped opening, be provided with symmetrically and the suitable plat mill part of described U-shaped opening on the outer circumference surface of big tailstock barrel right-hand member, when the transmission system drives drift carries out first time upsetting to workpiece, the described plate of plate drive mechanism moves to bottom, and the U-shaped opening of plate lower end is inserted on the plat mill part of big tailstock barrel right-hand member.
In such scheme, described plate driving mechanism comprises transmission mechanism and linkage, the input of transmission mechanism is connected on the uropore automatic cold header transmission system, the output of transmission mechanism is provided with cam, the input of described linkage is resisted against on the described cam, and the output of described linkage and the upper end of described plate are hinged.
In such scheme, described big thimble resetting-mechanism comprises liftout lever and back-moving spring, the upper end of liftout lever is sleeved on the big thimble and offsets with the left side of big tailstock barrel, the middle part of liftout lever is hinged on the fuselage, the lower end of liftout lever leans on the back-moving spring that is arranged on the fuselage, be milled with a plane on the left part outer circumference surface of big tailstock barrel, the right side of liftout lever upper end is provided with a flat board that extends to the right, and flat board is pressed on the plane on the outer circumference surface of big tailstock barrel left part.
The utility model has been set up the upsetting position-limit mechanism, when the head of upsetting first time shaping workpiece, plate moves down, and blocks main intermode cover (promptly blocking main mould), when the uropore of upsetting second time shaping workpiece, move on the plate, break away from main intermode cover (main mould retreats the space).Therefore, the rammer power of dashing when the utility model can guarantee the Workpiece shaping head, when solution uropore larger-size tubular rivet of automatic cold header rivet head or semi-hollow contracted riveting pin, the rivet head or the bar spot size that contracts did not often reach the problem of drawing dimensional requirement.
Description of drawings
Fig. 1 is the larger-size tubular rivet structural representation of rivet head;
Fig. 2 is the semi-hollow riveting pin structural representation that contracts;
Fig. 3 is a transmission mechanism schematic diagram of the present utility model;
Fig. 4 is a upsetting position-limit mechanism schematic diagram of the present utility model;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the A-A profile among Fig. 5;
Fig. 8 is a plate driving mechanism schematic diagram;
Fig. 9 is the B-B cutaway view among Fig. 8;
Figure 10 is the vertical view of moulding box;
Figure 11 is the profile of big tailstock barrel;
Figure 12 is the vertical view of big tailstock barrel among Figure 11;
Figure 13 is a liftout lever construction schematic diagram;
Figure 14 is the schematic diagram of the utility model hot upset forging for the second time;
Figure 15 is the riveting pin die drawing that contracts.
The specific embodiment
The utility model be on existing uropore automatic cold header, carry out improved, existing uropore automatic cold header comprises fuselage and is successively set on big thimble, moulding box and drift on the fuselage from left to right, big thimble, moulding box and drift are respectively by transmission system drives, be provided with main mould in the moulding box, be set with big tailstock barrel on the big thimble, under the driving of transmission system, drift is realized respectively being moved to the left for twice, and the workpiece in the main mould is carried out twice upsetting moulding.
Transmission system mainly is made up of motor, feed mechanism, cutting machine structure, upsetting mechanism and discharging mechanism.Wherein, feed mechanism, shut-off mechanism, upsetting mechanism and discharging mechanism are identical with existing design, realize twice upsetting by upsetting mechanism, for the first time the head of shaping workpiece, the uropore of shaping workpiece for the second time.Improvement of the present utility model is to have increased the upsetting position-limit mechanism, the rammer power of dashing when being used to improve upsetting for the first time.
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
As Fig. 3-Fig. 9 and shown in Figure 14, the schematic diagram that wherein Fig. 7 shows when being for the first time thick upsetting of the utility model, the head of for the first time thick upsetting shaping workpiece, Figure 14 are the schematic diagram of the utility model hot upset forging for the second time, the uropore of the shaping workpiece of hot upset forging for the second time.The upsetting position-limit mechanism comprises plate 34 and drives on the plate 34, mobile down plate driving mechanism, fuselage has a horizontally disposed platform and a vertically disposed column body 100, be set with big tailstock barrel 102 on the big thimble 33, the right-hand member of big thimble 33 is provided with little thimble 331, but big tailstock barrel 102 is horizontally set in the column body 100 and the along continuous straight runs move left and right along left and right directions, moulding box 200 is fixedly installed on the right side of column body 100, be provided with moulding box backing plate 201 between the right side of moulding box 200 and column body 100, main mould 15 is arranged in the moulding box 200 and is relative with big thimble 33, be provided with main intermode cover 110 between main mould 15 and the big tailstock barrel 102, the right-hand member of main mould 15 is relative with drift 13, drift 13 is fixed on the slide block 10, and slide block 10 is by transmission system drives.The left side of moulding box 200 is provided with the chute 101 (referring to Figure 10) suitable with plate 34 profiles, and plate 34 places in the chute 101.
The plate driving mechanism comprises transmission mechanism and linkage, transmission mechanism comprises first power transmission shaft 9, one end of first power transmission shaft 9 is connected on the final drive shaft 55 in the uropore automatic cold header transmission system by first, second bevel gear 56,57, the other end of first power transmission shaft 9 connects second power transmission shaft 23 by the 3rd, the 4 two bevel gear 21,22, second power transmission shaft 23 and the 9 vertical settings of first power transmission shaft, the other end of second power transmission shaft 23 is provided with cam 35.Linkage by be hinged first, second, third connecting rod 36,38 and 39 form, the lower end of first connecting rod 36 is provided with bearing 361, make bearing 361 maintenances of first connecting rod 36 lower ends and tight contact of cam 35 working faces by extension spring 362, the upper end of the other end of third connecting rod 39 and plate 34 is hinged, the lower end of plate 34 is provided with the U-shaped opening, be provided with plat mill part 103 on the outer circumference surface of big tailstock barrel 102 right-hand members symmetrically and (promptly on the outer circumference surface of big tailstock barrel 102 right-hand members, mill out two planes symmetrically by milling cutter, see Figure 11), the U-shaped opening suitable (referring to Fig. 8 and Figure 12) of plat mill part 103 and plate 34 lower ends, with the rotation of final drive shaft 55, plate drive mechanism plate 34 moves up and down along the chute on the left side of moulding box 200 101.Concrete scheme is, when the transmission mechanism of uropore automatic cold header drives 13 pairs of workpiece of drift 300 and carries out first time upsetting, plate drive mechanism plate 34 moves to bottom, the U-shaped open card of plate 34 lower ends is on the plat mill part 103 of big tailstock barrel 102 right-hand members, block main intermode cover 110 with the end of big tailstock barrel 102, make main mould 15 be subjected to drift 13 dash rammer power the time can be to left movement; When the transmission mechanism of uropore automatic cold header drives 13 pairs of workpiece of drift 300 and carries out second time upsetting, plate drive mechanism plate 34 moves to topmost, the U-shaped opening of plate 34 lower ends breaks away from big tailstock barrel 102, this moment, big tailstock barrel 102 can be moved to the left with the rammer power of dashing left that main mould 15 is subjected to, when main intermode overlaps 110 left sides and runs into moulding box backing plate 201 right sides, big tailstock barrel 102 and 15 stop motions of main mould, drift 13 is with workpiece upsetting moulding.
In actual use, if big tailstock barrel 102 rotates, when then plate 34 is descending once more, the U-shaped opening can not insert the plat mill part 103 of big tailstock barrel 102 right-hand members smoothly, rotate in order to prevent big tailstock barrel 102, and the utility model has adopted following design.
The left end of big thimble 33 is inserted into the upper end of liftout lever 400, the upper end of liftout lever 400 is resisted against the left end of big tailstock barrel 102, the middle part that liftout is shouldered bar 400 is hinged on the column body 100 of fuselage, the lower end leans on the back-moving spring 301 that is arranged on the fuselage column body 100, the elastic force of back-moving spring 301 makes the upper end of liftout lever 400 have the trend that moves right, so that big tailstock barrel 102 has the trend that moves right.See Figure 11, mill a plane 104 on the left part outer circumference surface of big tailstock barrel 102, the right side of liftout lever 400 upper ends is provided with a flat board 401 (seeing Figure 13) that extends to the right, plane 104 on the left end outer circumference surface of dull and stereotyped and tailstock barrel 102 greatly contacts, thereby has avoided the rotation of big tailstock barrel 102.
In conjunction with Fig. 3, second power transmission shaft 23 rotates a circle under the driving of first power transmission shaft 9 again, and cam 35 rotates a circle, and bent axle 3 rotates 2 circles, and bent axle 3 drives twice of 13 pairs of workpiece 300 upsetting of drift by slide block 10.When carrying out the first time thick upsetting, cam 35 smaller diameter portion positions contact with the bearing 361 of first connecting rod 36 lower ends, Open Side Down inserts the plat mill part 103 of big tailstock barrel 33 right-hand members for the U of plate 34 lower ends, so plate 34 stops that by main intermode cover 110 main mould 15 is moved to the left, existing product is to stop by back-moving spring 301 and liftout lever 400, but as pointed in the background technology, because the elastic force of back-moving spring 301 can not be too big, therefore main mould 15 is moved to left, make the rammer power of dashing of workpiece head moulding not enough thereby cause.And the utility model moves down by plate 34 and blocks main mould 15, and it can not be moved to left, and therefore the enough resistance rammer power of dashing with opposing drift 13 can be provided, thereby guarantee workpiece 300 head moulding.As shown in Figure 6, when carrying out second time hot upset forging, cam 35 contacts than the bearing 361 of major diameter position with first connecting rod 36 lower ends, plate 34 moves up, the U-shaped opening of its lower end leaves the plat mill part 103 of big tailstock barrel 33 right-hand members, between main intermode cover 110 and moulding box backing plate 201, reserve the gap of plate 34 thickness, so workpiece 300 and main mould 15 are moved to the left together, this moment, big thimble 33 was motionless, the fixing little thimble 331 of its right-hand member is gone out uropore at the afterbody of workpiece 300, and the degree of depth of uropore equals the thickness of plate 34.Change main mould 15 into mould shown in Figure 15 and can process the riveting pin that contracts shown in Figure 2.
The composition and the course of work of feed mechanism are same as the prior art, for ease of understanding, are summarized as follows:
As shown in Figure 3, motor 1 drives bent axle 3 by active and passive belt pulley 2,4 and V belt 6 and rotates, and bent axle 3 drives slide block 10 by connecting rod 54 and does left and right reciprocating motion, and drift 13 is fixed on the slide block 10.Simultaneously, bent axle 3 drives first driven gear 49,52 drivings of second driven gear driving shaft 53 and final drive shaft 55 rotations down by driving gear 51.Following driving shaft 53 is used to drive feed mechanism, specifically, one end of following driving shaft 53 is provided with eccentric wheel 5, one end of feeding pull bar 8 closely contacts with the outer circumference surface of eccentric wheel 5, the other end of feeding pull bar 8 is provided with support tooth mounting 24 and pawl ratchet mechanism 25, and wherein ratchet drives a pair of intermeshing charging gear 26.Following driving shaft 53 drives eccentric wheel 5 and rotates, so feeding pull bar 8 left and right moving, making pawl ratchet mechanism 25 drive charging gear 26 rotates, thereby driving upper and lower feed shaft 27,28 rotates, so a pair of charging wheel 32 of upper and lower feed shaft 27,28 other ends is done unidirectional intermittence and is rotated, sending in the cut-off-die 40, till limit material baffle plate 41 is run in the end of wire rod through the wire rod after 31 alignments of straight line frame.
The composition of cutting machine structure and the course of work are also same as the prior art, are summarized as follows:
When limit material baffle plate 41 is run in the end of wire rod, the material eccentric disc 50 cut on first driven gear 49 drives and cuts material connecting rod 46 and be moved to the left, so cutting material planker 43 drive scissors bars 44 moves up, scissors 37 on the scissors bar 44 is moved upward cut off wire rod, and the wire rod of cutting off is delivered to the porch of main mould 15.
The composition and the course of work of upsetting mechanism are summarized as follows:
The wire rod of cutting off is delivered to after the porch of main mould 15, plate 34 moves down, insert the plat mill part 103 of big tailstock barrel 102 right-hand members, scissors bar 44 and scissors 37 are return original position rapidly, slide block 10 continues to be moved to the left, the drift 13 that is contained on the slide block 10 front end dovetail plankers advances the line material that has cut off in the main mould 15 in the moulding box 200, head to workpiece 300 carries out the upsetting first time, return to the right with rear slider 10, this moment, lower drive shaft 53 moved on the upsetting line by the fine blanking die 42 that cam 48 drive impulsion bars 47 and rocker swing arm 45 will be contained on the dovetail planker 12, move on the plate 34 this moment, leave big tailstock barrel 102 ends and mill flat part, between moulding box backing plate 201 and main intermode cover 110, reserve the gap, when treating that slide block 10 travels forward for the second time, workpiece 300 is carried out the hot upset forging second time, and in fine blanking die 42 shaping workpiece heads, little thimble 331 forms uropore in the end of workpiece 300 in the main mould 15.
The composition of discharging mechanism and the course of work and prior art now together, are summarized as follows:
The good workpiece 300 of upsetting is released by ejector beam 20 when slide block 10 moves right.Specifically, following driving shaft 53 is provided with cam 7, rotation with cam 7, drive ejects mounting 11 and liftout connecting rod 14 and makes and eject square iron 17 and be moved to the left, so ejector beam 20 rotates counterclockwise, big thimble 33 is moved right, workpiece 300 is released to the right in main mould 15, collude material cutter 16 this moment and block workpiece 300, slide block 10 moves right, and workpiece 300 is separated with main mould 15, and workpiece 300 falls in the workpiece box on the fuselage platform automatically, colluding material cutter 16 is driven by first power transmission shaft 9, the five, the 6th bevel gear 18,19, the 3rd power transmission shaft 29 and cam 30.
After above-mentioned operation was finished, drawing-inroller 32 began again to rotate, and feeding begins new circulation once more.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the present utility model.
Claims (3)
1. uropore automatic cold header, comprise the moulding box that is arranged on the fuselage, big thimble, big thimble resetting-mechanism, the transmission system that drift and the realization of driving drift move left and right are carried out twice upsetting to workpiece, moulding box is fixed on the left surface of fuselage, big thimble and drift lay respectively at the left and right sides of moulding box, it is characterized in that also comprising the upsetting position-limit mechanism, described upsetting position-limit mechanism comprises plate and drives on the plate, mobile down plate driving mechanism, the left side of described moulding box is provided with and the suitable chute of plate profile, plate places in the described chute, the lower end of plate is provided with the U-shaped opening, be provided with symmetrically and the suitable plat mill part of described U-shaped opening on the outer circumference surface of big tailstock barrel right-hand member, when the transmission system drives drift carries out first time upsetting to workpiece, the described plate of plate drive mechanism moves to bottom, and the U-shaped opening of plate lower end is inserted on the plat mill part of big tailstock barrel right-hand member.
2. uropore automatic cold header as claimed in claim 1, it is characterized in that, described plate driving mechanism comprises transmission mechanism and linkage, the input of transmission mechanism is connected on the uropore automatic cold header transmission system, the output of transmission mechanism is provided with cam, the input of described linkage is resisted against on the described cam, and the output of described linkage and the upper end of described plate are hinged.
3. uropore automatic cold header as claimed in claim 1, it is characterized in that, described big thimble resetting-mechanism comprises liftout lever and back-moving spring, the upper end of liftout lever is sleeved on the big thimble and offsets with the left side of big tailstock barrel, the middle part of liftout lever is hinged on the fuselage, the lower end of liftout lever leans on the back-moving spring that is arranged on the fuselage, be milled with a plane on the left part outer circumference surface of big tailstock barrel, the right side of liftout lever upper end is provided with a flat board that extends to the right, and flat board is pressed on the plane on the outer circumference surface of big tailstock barrel left part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201107756U CN202052894U (en) | 2011-04-15 | 2011-04-15 | Automatic cold heading machine of tail hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201107756U CN202052894U (en) | 2011-04-15 | 2011-04-15 | Automatic cold heading machine of tail hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052894U true CN202052894U (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201107756U Expired - Fee Related CN202052894U (en) | 2011-04-15 | 2011-04-15 | Automatic cold heading machine of tail hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202052894U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785703B (en) * | 2015-04-24 | 2016-08-24 | 浙江东瑞机械工业有限公司 | Logical liftout attachment after cold-heading |
| CN107414002A (en) * | 2017-05-08 | 2017-12-01 | 侯宇岷 | A kind of large-size horizontal, which is cut, send integral steel ball forming machine |
| CN107824729A (en) * | 2017-11-27 | 2018-03-23 | 宁波骑士马具用品制造有限公司 | A kind of horseshoe nail end moulding mechanism |
| CN112808905A (en) * | 2021-02-05 | 2021-05-18 | 东莞市泰基山机械设备有限公司 | Material pulling device for cold header |
| CN113333663A (en) * | 2021-06-01 | 2021-09-03 | 河北国智机械设备制造有限公司 | A feeding cutting device for nut cold-heading processing |
-
2011
- 2011-04-15 CN CN2011201107756U patent/CN202052894U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785703B (en) * | 2015-04-24 | 2016-08-24 | 浙江东瑞机械工业有限公司 | Logical liftout attachment after cold-heading |
| CN107414002A (en) * | 2017-05-08 | 2017-12-01 | 侯宇岷 | A kind of large-size horizontal, which is cut, send integral steel ball forming machine |
| CN107414002B (en) * | 2017-05-08 | 2019-06-07 | 侯宇岷 | A kind of large-size horizontal, which is cut, send integrated steel ball molding machine |
| CN107824729A (en) * | 2017-11-27 | 2018-03-23 | 宁波骑士马具用品制造有限公司 | A kind of horseshoe nail end moulding mechanism |
| CN107824729B (en) * | 2017-11-27 | 2024-02-06 | 宁波骑士马具用品制造有限公司 | U-shaped nail end forming mechanism |
| CN112808905A (en) * | 2021-02-05 | 2021-05-18 | 东莞市泰基山机械设备有限公司 | Material pulling device for cold header |
| CN113333663A (en) * | 2021-06-01 | 2021-09-03 | 河北国智机械设备制造有限公司 | A feeding cutting device for nut cold-heading processing |
| CN113333663B (en) * | 2021-06-01 | 2022-05-13 | 河北国智机械设备制造有限公司 | A feeding cutting device for nut cold-heading processing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20160415 |
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| CF01 | Termination of patent right due to non-payment of annual fee |