CN216780196U - Die with guide structure for machining combined teeth - Google Patents

Abstract

The utility model discloses a die with a guide structure for machining a combined tooth, which comprises a workbench and a guide assembly, wherein a support is arranged above the workbench, and a hydraulic cylinder is arranged on the top surface of the support. This combine mould for tooth processing with guide structure passes through the setting of direction subassembly, can drive when the mould pushes down at the clamp plate, make the guide cylinder carry on spacingly to spacing post, just can prevent to go up the mould and produce the skew when cold-heading to the stock, improve the quality of part, the upper end of guide cylinder is hourglass hopper-shaped simultaneously, precision when can further improving the direction, avoid appearing the dead phenomenon of card because of vibrations dislocation because of spacing post, and still through the setting of oil filler point and oil absorption cotton, can when spacing post reciprocates, paint the lubrication to the outside of spacing post, thereby reduce the friction loss between spacing post and the guide cylinder, in order to prolong the life of mould, and still through the setting of buffer spring and sliding plate, can cushion when moving down the clamp plate.

Description

Die with guide structure for machining combined teeth

Technical Field

The utility model relates to the technical field of combined tooth processing, in particular to a die with a guide structure for processing combined teeth.

Background

The combined gear ring is applied to an automobile transmission, the appearance of the combined gear ring consists of a tooth-shaped part and a boss part, the whole combined gear ring has the characteristic of a hollow hub, because the combined gear is of a special structure with the boss, the processing of the external tooth part of the combined gear is difficult to complete by the traditional gear shaping processing and gear hobbing processing, the combined gear ring can be processed by casting, forging and other methods, a die is various dies and tools which are used for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, and in short, the die is a tool for manufacturing molded articles.

In the case of a mold for machining a coupling tooth in the market, there is a problem that the yield is easily lowered due to the displacement of the mold position because of no guide structure, and therefore, a mold for machining a coupling tooth having a guide structure has been proposed.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a die for machining a coupling tooth having a guide structure, so as to solve the problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: a mold with a guide structure for machining combined teeth comprises a workbench and a guide assembly, wherein a support is arranged above the workbench, a hydraulic cylinder is arranged on the top surface of the support, a pressing plate is connected to the lower end of the hydraulic cylinder, limiting columns are fixedly connected to the left end and the right end of the bottom surface of the pressing plate, the guide assembly for guiding is arranged at the left end and the right end of the top surface of the workbench and comprises a guide cylinder, an oil filling hole, oil absorbent cotton, a sliding plate, a buffer spring, a sliding block and a guide groove, the oil filling hole is formed in the left end and the right end of the top surface of the guide cylinder, the oil absorbent cotton is connected to the lower end of the oil filling hole, the sliding plate is arranged in the center of the guide cylinder, the buffer spring is connected to the bottom surface of the sliding plate, the sliding block is fixedly connected to the left end and the right end of the sliding plate, the guide groove is arranged on the outer side of the sliding block, and an upper mold is arranged in the center of the bottom surface of the pressing plate, and a lower die is arranged right below the upper die, mounting assemblies for dismounting are arranged at the left end and the right end of the lower die, and a stripping assembly for stripping is arranged at the lower end of the center of the lower die.

Preferably, the perpendicular bisector of guide cylinder coincides mutually with the perpendicular bisector of spacing post, and the internal diameter of oil absorption cotton is less than the diameter of spacing post to spacing post and guide cylinder sliding connection.

Preferably, two sliding blocks are symmetrically arranged at the center of the sliding plate, and the diameter of the sliding plate is equal to that of the limiting column.

Preferably, the mounting assembly comprises a mounting hole, a clamping block, a limiting rod and a positioning spring, the clamping block is arranged in the mounting hole, the lower end of the clamping block is connected with the limiting rod in a sliding mode, and the positioning spring is sleeved on the outer side of the right end of the limiting rod.

Preferably, the front side and the rear side of the clamping block are attached to the workbench, and the length direction of the clamping block and the length direction of the limiting rod are distributed in a vertical manner.

Preferably, the stripping assembly comprises an ejector rod, a first tooth groove, a first gear, a rotating shaft, a support, a ratchet wheel, a directional frame, a pawl, a reset spring, a second gear and a lifting rod, wherein the first tooth groove is formed in the left side of the ejector rod, the left end of the first tooth groove is connected with the first gear, the rotating shaft is arranged inside the first gear, the support is rotatably connected to the outer side of the center of the rotating shaft, the ratchet wheel is fixedly connected to the left end of the rotating shaft, the directional frame is arranged on the outer side of the ratchet wheel, the pawl is rotatably connected to the upper end and the lower end of the directional frame, the reset spring is connected to the front end of the pawl, the second gear is fixedly connected to the rear end of the directional frame, and the lifting rod is arranged on the right side of the second gear.

Preferably, the orientation frame is rotatably connected with the rotating shaft, the central line of the orientation frame is overlapped with the central line of the ratchet wheel, and the ratchet wheel is attached to the pawl.

Preferably, the lifting rod is meshed with the second gear, the lifting rod is fixedly connected with the pressing plate, and the lifting rod and the ejector rod are distributed in parallel.

The utility model provides a die with a guide structure for machining a combined tooth, which has the following beneficial effects: this combine mould for tooth processing with guide structure adopts mutually supporting between a plurality of subassemblies, not only has guide structure, improves the precision when the compound die to improve the quality to combining tooth processing, also can prolong guide structure's life simultaneously, but also be convenient for carry out the dismouting to the mould, convenience when improving the maintenance, and can also be after the cold-heading, can be automatic carry out the drawing of patterns to combining the tooth, efficiency when improving the drawing of patterns.

1. According to the utility model, through the arrangement of the guide assembly, when the upper die is driven by the pressing plate to press down, the guide cylinder is enabled to limit the limiting column, so that the upper die can be prevented from shifting during cold heading of a blank, the quality of a part is improved, meanwhile, the upper end of the guide cylinder is funnel-shaped, the precision during guiding can be further improved, the phenomenon of clamping caused by vibration dislocation of the limiting column is avoided, and through the arrangement of the oil injection hole and the oil absorption cotton, the outer side of the limiting column can be coated and lubricated when the limiting column moves up and down, so that the friction loss between the limiting column and the guide cylinder is reduced, the service life of the die is prolonged, and through the arrangement of the buffer spring and the sliding plate, the pressing plate can be buffered during downward movement, so that the effect during cold heading is improved;

2. according to the utility model, through the arrangement of the mounting assembly, when the lower die is mounted, the mounting hole is aligned with the fixture block and pressed downwards, the fixture block can slide into the mounting hole under the limit of the upper end inclined plane, at the moment, the positioning spring can push the fixture block to be clamped with the mounting hole under the limit of the limiting rod, so that the lower die can be mounted on the workbench, and the lower die can be dismounted only by pushing the fixture block to be separated from the mounting hole during dismounting, so that the convenience in dismounting and repairing the lower die and the upper die is improved;

3. according to the utility model, through the arrangement of the blanking assembly, after cold heading, the hydraulic cylinder pulls the pressing plate to move upwards to separate the upper die from the lower die, at the moment, the lifting rod can drive the second gear to rotate, the pawl in the directional frame can push the ratchet wheel to enable the rotating shaft to rotate under the limit of the support, the first gear can push the ejector rod to eject the material through the first tooth groove, so that the combined teeth are not required to be demolded by an additional power device, the convenience in demolding is improved, in addition, the lifting rod moves downwards to drive the second gear to rotate clockwise during cold heading, and through the arrangement of the pawl and the reset spring, the transmission between the first gear and the second gear is not carried out any more, so that the phenomenon of blocking of the ejector rod can be avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of a mold for machining a coupling tooth having a guide structure according to the present invention;

FIG. 2 is a schematic view of the internal structure of a guide cylinder of a mold for machining coupling teeth according to the present invention;

FIG. 3 is an enlarged view of the mold for machining coupling teeth of the present invention, shown at A in FIG. 1;

fig. 4 is a left side view structural diagram of a stripping assembly of the die for machining combined teeth with a guide structure according to the utility model.

In the figure: 1. a work table; 2. a support; 3. a hydraulic cylinder; 4. pressing a plate; 5. a limiting column; 6. a guide assembly; 601. a guide cylinder; 602. an oil filler hole; 603. oil absorbing cotton; 604. a sliding plate; 605. a buffer spring; 606. a slider; 607. a guide groove; 7. an upper die; 8. a lower die; 9. mounting the component; 901. mounting holes; 902. a clamping block; 903. a limiting rod; 904. a positioning spring; 10. a stripping assembly; 1001. a top rod; 1002. a first tooth slot; 1003. a first gear; 1004. a rotating shaft; 1005. a support; 1006. a ratchet wheel; 1007. an orientation frame; 1008. a pawl; 1009. a return spring; 1010. a second gear; 1011. a lifting rod.

Detailed Description

As shown in fig. 1-2, a mold with a guide structure for processing a combined gear comprises a workbench 1 and a guide assembly 6, wherein a support 2 is arranged above the workbench 1, a hydraulic cylinder 3 is arranged on the top surface of the support 2, a press plate 4 is connected to the lower end of the hydraulic cylinder 3, limiting columns 5 are fixedly connected to the left and right ends of the bottom surface of the press plate 4, the guide assembly 6 for guiding is arranged at the left and right ends of the top surface of the workbench 1, the guide assembly 6 comprises a guide cylinder 601, oil injection holes 602, oil absorption cotton 603, a sliding plate 604, a buffer spring 605, a sliding block 606 and a guide groove 607, the oil injection holes 602 are arranged at the left and right ends of the top surface of the guide cylinder 601, the lower end of the oil injection holes 602 is connected with the oil absorption cotton 603, the perpendicular bisector of the guide cylinder 601 coincides with the limiting column 5, the inner diameter of the oil absorption cotton 603 is smaller than the diameter of the limiting column 5, and the limiting columns 5 are slidably connected with the guide cylinder 601, the guide cylinder 601 can limit the limit column 5, so that the upper die 7 can be prevented from shifting during cold heading of a blank, the quality of parts is improved, meanwhile, the upper end of the guide cylinder 601 is funnel-shaped, the accuracy during guiding can be further improved, the phenomenon of blocking caused by vibration dislocation of the limit column 5 is avoided, in addition, through the arrangement of the oil injection hole 602 and the oil absorption cotton 603, when the limit column 5 moves up and down, the outer side of the limit column 5 can be coated and lubricated, so that the friction loss between the limit column 5 and the guide cylinder 601 is reduced, the service life of the die is prolonged, the sliding plate 604 is arranged in the center of the inner part of the guide cylinder 601, the bottom surface of the sliding plate 604 is connected with a buffer spring 605, the left end and the right end of the sliding plate 604 are fixedly connected with sliding blocks 606, the outer side of the sliding block 606 is provided with guide grooves 607, and the sliding blocks 606 are symmetrically arranged with two sliding blocks 604 relative to the center position of the sliding plate, and the diameter of sliding plate 604 equals with the diameter of spacing post 5, can carry on spacingly to sliding plate 604 through slider 606, make sliding plate 604 steady and spacing between the post 5 contact, improve the effect that the buffering made, the bottom surface central authorities of clamp plate 4 settle has last mould 7, and is provided with lower mould 8 under going up mould 7.

As shown in fig. 3-4, the left and right ends of the lower mold 8 are provided with mounting assemblies 9 for mounting and dismounting, the lower end of the center of the lower mold 8 is provided with a stripping assembly 10 for stripping, each mounting assembly 9 comprises a mounting hole 901, a clamping block 902, a limiting rod 903 and a positioning spring 904, a clamping block 902 is arranged in the mounting hole 901, the lower end of the clamping block 902 is connected with the limiting rod 903 in a sliding manner, the outer side of the right end of the limiting rod 903 is sleeved with the positioning spring 904, the front side and the rear side of the clamping block 902 are attached to the workbench 1, the length direction of the clamping block 902 is perpendicular to the length direction of the limiting rod 903, so that the workbench 1 can limit the clamping block 902, when the lower mold 8 is mounted, the mounting hole 901 is aligned with the clamping block 902 to press down, the clamping block 902 can slide into the mounting hole 901 under the limit of the inclined plane at the upper end, and the positioning spring 904 can push the clamping block 902 to be clamped with the mounting hole 901 under the limit of the limiting rod 903, the lower die 8 can be installed on the workbench 1, and the lower die 8 can be disassembled only by pushing the fixture block 902 to separate from the installation hole 901 during disassembly, so that the convenience in disassembly, assembly and maintenance of the lower die 8 and the upper die 7 is improved, the stripping assembly 10 comprises a top rod 1001, a first toothed groove 1002, a first gear 1003, a rotating shaft 1004, a support 1005, a ratchet wheel 1006, a directional frame 1007, a pawl 1008, a reset spring 1009, a second gear 1010 and a lifting rod 1011, the left side of the top rod 1001 is provided with the first toothed groove 1002, the left end of the first toothed groove 1002 is connected with the first gear 1003, the rotating shaft 1004 is arranged inside the first gear 1003, the support is rotatably connected with the outer side of the center of the rotating shaft 1004, the ratchet wheel 1006 is fixedly connected with the left end of the rotating shaft 1004, the directional frame 1007 is arranged on the outer side of the ratchet wheel 1006, the pawl 1008 is rotatably connected with the upper end and the lower end of the directional frame 1007, and the reset spring 1009 is connected with the front end of the pawl 1008, the directional frame 1007 is rotatably connected with the rotating shaft 1004, the central line of the directional frame 1007 is overlapped with the central line of the ratchet 1006, the ratchet 1006 is attached to the pawl 1008, the rotating direction of the ratchet 1006 can be positioned through the pawl 1008 and the return spring 1009, and the ratchet 1006 can only perform anticlockwise transmission, so that the phenomenon of locking of the top rod 1001 can be avoided, the rear end of the directional frame 1007 is fixedly connected with the second gear 1010, the right side of the second gear 1010 is provided with the lifting rod 1011, the lifting rod 1011 is engaged with the second gear 1010, the lifting rod 1011 is fixedly connected with the pressure plate 4, the lifting rod 1011 and the top rod 1001 are distributed in parallel, when the lifting rod is moved upwards, the second gear 1010 can be driven to rotate, the pawl 1008 in the directional frame 1007 can push the ratchet 1006 to enable the rotating shaft 1004 to rotate under the limit of the support 1005, so that the first gear 1003 can push the top rod 1001 to push the material out through the first tooth groove 1002, therefore, the bonding teeth are not required to be demolded by an additional power device, and convenience in demolding is improved.

In summary, when the mold for machining coupling teeth with a guide structure is used, firstly, according to the structure shown in fig. 1 and 3, when the lower mold 8 is installed, the mounting hole 901 can be aligned with the fixture block 902 to be pressed down, the fixture block 902 can slide into the mounting hole 901 under the limit of the upper end inclined plane, at this time, the positioning spring 904 can push the fixture block 902 to be clamped with the mounting hole 901 under the limit of the limiting rod 903, so that the lower mold 8 can be installed on the workbench 1, and when the mold is disassembled, the lower mold 8 can be disassembled by only pushing the fixture block 902 to be separated from the mounting hole 901, so that the convenience in disassembly and maintenance of the lower mold 8 and the upper mold 7 is improved, then, the blank is placed in the lower mold 8, the ejector rod 1001 is pressed to the bottom end of the lower mold 8, the hydraulic cylinder 3 on the bracket 2 is started, the hydraulic cylinder 3 pushes the pressing plate 4 to move the upper mold 7 downwards, and then according to the structure shown in fig. 2, when the pressing plate 4 drives the upper die 7 to press down, the guide cylinder 601 can limit the position of the limiting column 5, so that the upper die 7 can be prevented from shifting during cold heading of a blank, the quality of parts is improved, meanwhile, the upper end of the guide cylinder 601 is funnel-shaped, the accuracy during guiding can be further improved, the phenomenon that the limiting column 5 is stuck due to vibration dislocation is avoided, the outer side of the limiting column 5 can be coated and lubricated when the limiting column 5 moves up and down through the arrangement of the oil injection hole 602 and the oil absorption cotton 603, so that the friction loss between the limiting column 5 and the guide cylinder 601 is reduced, the service life of the die is prolonged, the pressing plate 4 can be buffered during downward movement through the arrangement of the buffer spring 605 and the sliding plate 604, the effect during cold heading is improved, and finally, according to the structure shown in fig. 4, after cold heading forming, the hydraulic cylinder 3 pulls the pressing plate 4 to move up, the upper die 7 and the lower die 8 are separated, the lifting rod 1011 can drive the second gear 1010 to rotate at the moment, the pawl 1008 in the orientation frame 1007 can push the ratchet 1006 to enable the rotating shaft 1004 to rotate under the limit of the support 1005, the first gear 1003 can push the ejector rod 1001 to eject materials out through the first toothed groove 1002, so that the combined teeth are not required to be demolded by means of an additional power device, the convenience in demolding is improved, and the lifting rod 1011 moves downwards to drive the second gear 1010 to rotate clockwise when in cold heading, and the first gear 1003 and the second gear 1010 are prevented from being transmitted any more through the arrangement of the pawl 1008 and the reset spring 1009, so that the phenomenon that the ejector rod 1001 is blocked can be avoided.

Claims (8)

1. A mold with a guide structure for machining combined teeth comprises a workbench (1) and a guide assembly (6), and is characterized in that a support (2) is arranged above the workbench (1), a hydraulic cylinder (3) is arranged on the top surface of the support (2), the lower end of the hydraulic cylinder (3) is connected with a pressing plate (4), the left end and the right end of the bottom surface of the pressing plate (4) are fixedly connected with limit columns (5), the guide assembly (6) for guiding is arranged on the left end and the right end of the top surface of the workbench (1), the guide assembly (6) comprises a guide cylinder (601), oil filling holes (602), oil absorbent cotton (603), a sliding plate (604), a buffer spring (605), a sliding block (606) and a guide groove (607), the oil filling holes (602) are formed in the left end and the right end of the top surface of the guide cylinder (601), and the lower end of the oil filling holes (602) is connected with the oil absorbent cotton (603), a sliding plate (604) is arranged in the center of the interior of the guide cylinder (601), a buffer spring (605) is connected to the bottom surface of the sliding plate (604), sliding blocks (606) are fixedly connected to the left end and the right end of the sliding plate (604), a guide groove (607) is arranged on the outer side of each sliding block (606), an upper die (7) is arranged in the center of the bottom surface of the pressing plate (4), a lower die (8) is arranged under each upper die (7), mounting assemblies (9) for dismounting are arranged at the left end and the right end of each lower die (8), and a stripping assembly (10) for stripping is arranged at the lower end of the center of each lower die (8).

2. The die for machining the combined tooth with the guide structure as claimed in claim 1, wherein a perpendicular bisector of the guide cylinder (601) coincides with a perpendicular bisector of the limit post (5), an inner diameter of the oil absorbent cotton (603) is smaller than a diameter of the limit post (5), and the limit post (5) is slidably connected with the guide cylinder (601).

3. The mold for machining coupling teeth with the guide structure according to claim 1, wherein two sliding blocks (606) are symmetrically arranged with respect to a central position of the sliding plate (604), and a diameter of the sliding plate (604) is equal to a diameter of the stopper post (5).

4. The mold with the guide structure for machining the combined teeth is characterized in that the mounting assembly (9) comprises a mounting hole (901), a clamping block (902), a limiting rod (903) and a positioning spring (904), the clamping block (902) is arranged in the mounting hole (901), the limiting rod (903) is connected to the lower end of the clamping block (902) in a sliding mode, and the positioning spring (904) is sleeved on the outer side of the right end of the limiting rod (903).

5. The mold with the guide structure for machining the coupling tooth according to claim 4, wherein the front and rear sides of the engaging block (902) are attached to the table (1), and the length direction of the engaging block (902) is perpendicular to the length direction of the limiting rod (903).

6. The mold with the guide structure for processing the combined teeth is characterized in that the stripping assembly (10) comprises a top rod (1001), a first toothed groove (1002), a first gear (1003), a rotating shaft (1004), a support (1005), a ratchet (1006), an orientation frame (1007), a pawl (1008), a return spring (1009), a second gear (1010) and a lifting rod (1011), the left side of the top rod (1001) is provided with the first toothed groove (1002), the left end of the first toothed groove (1002) is connected with the first gear (1003), the rotating shaft (1004) is arranged in the first gear (1003), the support (1005) is rotatably connected to the outer side of the center of the rotating shaft (1004), the ratchet (1006) is fixedly connected to the left end of the rotating shaft (1004), the orientation frame (1007) is arranged on the outer side of the ratchet (1006), and pawls (1008) are rotatably connected to the upper end and the lower end of the orientation frame (1007), and the front end of the pawl (1008) is connected with a return spring (1009), the rear end of the orientation frame (1007) is fixedly connected with a second gear (1010), and the right side of the second gear (1010) is provided with a lifting rod (1011).

7. The mold for machining combined teeth with the guide structure as claimed in claim 6, wherein the orientation frame (1007) is rotatably connected with the rotating shaft (1004), the center line of the orientation frame (1007) is coincident with the center line of the ratchet (1006), and the ratchet (1006) is in contact with the pawl (1008).

8. The mold with the guide structure for machining the combined tooth as claimed in claim 6, wherein the lifting rod (1011) is engaged with the second gear (1010), the lifting rod (1011) is fixedly connected with the pressing plate (4), and the lifting rod (1011) and the top rod (1001) are distributed in parallel.

Images