CN113977214A - Cross drill bit forming method - Google Patents
Cross drill bit forming method Download PDFInfo
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- CN113977214A CN113977214A CN202111318116.6A CN202111318116A CN113977214A CN 113977214 A CN113977214 A CN 113977214A CN 202111318116 A CN202111318116 A CN 202111318116A CN 113977214 A CN113977214 A CN 113977214A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 39
- 238000005242 forging Methods 0.000 claims abstract description 20
- 230000000630 rising effect Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000005096 rolling process Methods 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 14
- 238000003466 welding Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 6
- 238000003801 milling Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
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- 238000011105 stabilization Methods 0.000 description 2
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- 238000012360 testing method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
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Abstract
The invention relates to a cross drill bit forming method, which relates to the technical field of drill bit production and uses a drill bit forming machine, wherein the forming machine comprises a forming frame, a temperature rising device extending from one side of the forming frame to the other side is arranged above the forming frame, a clamping group for clamping a drill bit device is correspondingly arranged on the forming frame, a forging device is arranged on the upper side of the forming frame, and the forging device and the clamping group are matched with each other to forge a chip groove of the drill bit device; the cross drill bit has the effects of more stable production and further accelerated production efficiency.
Description
Technical Field
The application relates to the technical field of drill bit production, in particular to a cross drill bit forming method.
Background
The drill is a tool for drilling through holes or blind holes in solid materials and reaming existing holes. The commonly used drill bit mainly comprises a twist drill, a flat drill, a center drill, a deep hole drill, a cross drill and the like, wherein the cross drill is one of the commonly used drills in the actual production work.
Cross-bits typically include a shank having a tip with cutting edges and flutes, which in use rotate about a vertical axis while moving axially. The workpiece or the construction object is cut into a hole under the action of the torque and the axial force of the drill bit, and the chips are discharged from the chip grooves.
In the production process of the existing cross drill, for example, chinese patent with publication number CN105772809A, it discloses a drill rod and a bit of the drill and a manufacturing method of the drill, and the production process specifically includes the following steps:
a. preparing materials: preparing a cylindrical rod body (1), and arranging a cross slot (14) at the end part of the rod body (1);
preparing a cross-shaped tool bit, wherein the cross-shaped structure of the tool bit is matched with the cross-shaped slot (14);
b. assembling: the cross-shaped structure of the cutter head is inserted into a cross slot (14) at the end part of the rod body (1) and fixedly connected through welding, and the peripheral surface of the cross-shaped structure of the cutter head extends out of the cross slot (14);
c. milling a cutting edge: four arc-shaped blade surfaces (21a) are milled on the outer peripheral surface of the cross-shaped structure of the cutter head, and a cutter point (22) is formed by two opposite arc-shaped blade surfaces (21a) at one end of the cutter head far away from the rod body (1); arc-shaped grooves (23) are milled between the other two opposite arc-shaped blade surfaces (21a) and the tool nose (22) so that a distance is reserved between the two arc-shaped blade surfaces (21a) and the tool nose (22);
d. milling a chip removal groove (11) and a diversion trench (12): milling a spiral chip groove (11) on the outer peripheral surface of the rod body (1), wherein the chip groove (11) extends to a cross slot (14); four diversion trenches (12) are further milled on the rod body (1), each diversion trench (12) is located between two adjacent arc-shaped blade surfaces (21a) and is formed in the length direction of the drill rod, and the diversion trenches (12) are communicated with the chip discharge grooves (11).
However, in the above prior art, there are the following corresponding technical drawbacks:
the first point is as follows: the drill bits in the comparison files are connected in a subsequent welding mode, the strength required by the drill bits is very high, the operation objects aim at the high strength of stones, metals and the like, the welding connection mode cannot avoid the existence of welding seams, even if no welding seams exist, the construction difficulty and the specialty are high, and efficient production cannot be achieved during mass production;
and a second point: in the construction process of chip grooves and the like, the milling processing is also carried out subsequently through a milling machine, but the existing chip grooves of the drill bit have different groove opening depths, groove opening lengths and the like in the drill bits with different models, so that the control is difficult to carry out in the groove opening process, the workload with higher strength is required, and the space capable of being improved is also provided.
SUMMERY OF THE UTILITY MODEL
In order to enable the cross drill to be more stable in production and further quicken the production efficiency, the application provides a cross drill forming method.
A cross drill bit forming method uses a drill bit forming machine, which comprises a forming frame, wherein a temperature rising device extending from one side of the forming frame to the other side is arranged above the forming frame, a clamping group for clamping a drill bit device is correspondingly arranged on the forming frame, a forging device is arranged on the upper side of the forming frame, and the forging device and the clamping group are mutually matched for forging and pressing a chip groove of the drill bit device, wherein the temperature rising device is arranged above the forming frame;
the temperature rising device comprises a vertical plate, the vertical plate is arranged on one side above the forming frame, the temperature rising device further comprises a moving plate which is arranged on the vertical plate in a penetrating and sliding mode and an electromagnetic heating coil which is arranged on the moving plate, the electromagnetic heating coil is wound to form a heating through groove for a drill bit device, the clamping group is arranged on one side, opposite to the vertical plate, of the forming frame, and the clamping drill bit assembly extends into the heating through groove to heat;
forging and pressing device is including being fixed in the spacing frame on the shaping frame, spacing frame is located between riser and the centre gripping group, still includes:
an extension frame: the limiting frame is arranged at the corner of the limiting frame and extends towards the center of the limiting frame;
forming a roller: the forming rollers are rotatably arranged at one end of the extending frame, which is far away from the limiting frame, the outer surfaces of the forming rollers are provided with slotted convex edges, and the forming rollers are mutually matched to form a rolling channel for performing roll forming on the drill bit device;
a head opener: the opener is arranged on the extending frame and extends towards the rolling channel, and the opener is contacted with the end part of the drill bit device to open a drill bit groove;
the method for producing the drill bit device by using the drill bit forming machine comprises the following steps:
s1: cutting the steel column or the metal column into sections, cutting the steel column or the metal column into the length required by the drill bit, and fixing the end part of the cut steel column or the metal column through a clamping group;
s2: heating, namely heating, wherein the steel column or the metal column penetrates through the rolling channel and extends into the heating through groove by clamping of the clamping group, and the temperature of the steel column or the metal column is quickly raised by electrifying the heating coil;
s3: forging and pressing, namely retracting the heated steel column to the position of the rolling channel through the clamping group, controlling the forming roller to approach to the central position of the limiting frame through the extending frame after reaching the preset position, namely reducing the space of the rolling channel, and continuously pulling through the clamping group to form a chip groove on the heated steel column through the slotted convex edge;
s4: grinding the drill bit, after the chip grooves on the steel column are formed, enabling one end, far away from the clamping group, of the steel column to reach the position of the opener through the clamping movement of the clamping group, and cutting the end part of the steel column through the opener to form the opening groove;
s5: and (3) cooling and coating oil, namely cooling the finished drill bit with the opening groove and the chip groove, coating oil on the cooled drill bit and packaging.
By adopting the technical scheme, the method has the advantages that,
preferably, the extension frame is including rotating wheel, extension rod, first column and the second column of stabilizing, it rotates and installs on the shaping frame to rotate the wheel, it sets up screw thread to rotate the wheel outside, the extension rod wears to establish to slide and installs in spacing frame corner and with rotate wheel threaded connection, and a plurality of the extension rod all extends the setting towards the direction of roll-in passageway, first column of stabilizing rotates to install in spacing frame inboardly, the second is stabilized to rotate and is installed in one side of extension rod towards roll-in passageway, just rotate between first column of stabilizing and the second column of stabilizing and be connected, fixed mounting has and rotates the driving motor who takes turns inboard meshing on the shaping frame.
Through adopting above-mentioned technical scheme, the setting of extension frame, at the in-process of actual operation, only through the drive to rotating the wheel, just can be synchronous order about all extension rods and be close to or keep away from in the roll-in passageway in step, so the control process is more accurate, the existence of the reduction error that can be great between each extension rod, further improve the quality of production cross drill bit, in addition, the motion of a set of drive wheel control all extension rods, can the loss of energy reduction, the effect of the input of cost reduction when the event has easier control.
Preferably, the bisymmetry still be provided with stop device on the extension rod, stop device includes spacing post, first threaded rod, second threaded rod and demonstration scale, and is specific, spacing post fixed mounting is on the extension rod, first threaded rod fixed mounting extends on spacing post and to the direction of keeping away from spacing post, second threaded rod threaded mounting is on first threaded rod, and the second threaded rod that just corresponds can conflict each other, be provided with the demonstration scale that shows relative length between first threaded rod and the second threaded rod on the first threaded rod.
Through adopting above-mentioned technical scheme, setting through stop device in this application, because at the in-process of actual production, the equal diverse of model of cross drill bit, the diameter, width etc. have the difference, and stop device can adjust, so that interval between two stop device obtains controlling, the event can correspond with the model of cross drill bit according to interval between stop device, the cross drill bit that the production that has avoided the forming roll to lean on is too close or has kept away from too far away and cause has an error, further improve the quality of actual cross drill bit production, and the production efficiency is improved.
Preferably, set up the groove of establishing that inlays that supplies the forming roll installation on the extension rod, just be provided with connecting device between extension rod and the forming roll, connecting device includes:
the fixed pipe is fixedly arranged on the side wall at one side of the embedding groove and extends towards the other corresponding side wall;
the inserting rod is inserted and installed on the side wall on the other side of the embedding groove and is inserted into the fixed pipe in a sliding manner;
the pulling block is fixedly arranged at one end of the inserting rod far away from the fixed pipe;
the driving pressure spring is arranged between the pulling block and the outer side wall of the extension rod and drives the pulling block to have a tendency of moving in a direction away from the side wall of the extension rod;
insert and establish the pole and keep away from the one end an organic whole of pulling piece and be provided with the stopper, set up the groove that slides that supplies the stopper to slide on the fixed pipe, still set up in the fixed pipe and contradict and with the stopper conflict groove that slides the groove and communicate each other.
Through adopting above-mentioned technical scheme, in the same way, when the cross drill bit of actual production, the size model of cross drill bit inevitable can be inconsistent, so corresponding required shaping roller's model also need do corresponding adjustment, in order to can be more convenient change the shaping roller, only need earlier inwards promote with the pulling piece, aim at the groove that slides with the stopper again for can smoothly pull out can the stopper.
Preferably, the starting device comprises a plurality of driving cylinders fixedly mounted at the corners of the limiting frame, the driving cylinders extend towards the rolling channel, arc-shaped grooving dies are arranged at the end parts of the driving cylinders, and the arc-shaped grooving dies are matched with each other to perform grooving on the drill bit assembly;
the arc slotting die is characterized in that a hinge ball is integrally arranged on one side, close to the driving cylinder, of the arc slotting die, a hinge groove for the hinge ball to be inserted and hinged is formed in the driving cylinder, and a locking bolt for driving the hinge groove to clamp the hinge ball is arranged on the driving cylinder.
Through adopting above-mentioned technical scheme, at the in-process of cross bit production, except need seting up the chip groove, in order to reach the fluting efficiency of preferred, still need set up the sword groove at the tip of cross bit, it is the tip at the cross bit with extra cutter welding in some in the current production process, but this kind of operating method is inconvenient and easy fracture, and this application can continue to set up the sword groove after having set up the chip groove, production is accomplished in same only a process, can reduce the phenomenon appearance that causes the fracture because of the welding when increaseing production efficiency.
Preferably, centre gripping group includes dwang, movable block, fixed plate, solid fixed cylinder, push cylinder, promotion toper bucket and supporting rod, the dwang rotates to be installed on the shaping frame and rotatory by motor drive, the movable block spacing slide on the shaping frame and with dwang threaded connection, the fixed plate is installed to the movable block on, solid fixed cylinder fixed mounting to the fixed plate on and to the direction of riser extend, a plurality of the supporting rod rotates to be installed on solid fixed cylinder and one end extends to solid fixed cylinder in, push cylinder installs to solid fixed cylinder bottom, promotion toper bucket rigid coupling slides in the one end that push cylinder stretched out the end and its lateral wall and supporting rod stretched into solid fixed cylinder and contradicts.
Through adopting above-mentioned technical scheme, the setting of centre gripping subassembly for the cross drill bit can be removed by the centre gripping in the in-process of production, tightens up and expandes through promoting the cylinder, drives the dwang through the motor and rotates the removal that realizes the device, and the device is simple but the effect is fine, is difficult for appearing the error scheduling problem in the course of the work, has improved production efficiency greatly.
Preferably, one side of the clamping rod, which is close to the inner side wall of the fixed cylinder, is fixed with a first electromagnet, the inner side wall of the fixed cylinder is provided with a second electromagnet corresponding to the first electromagnet, and the first electromagnet and the second electromagnet are the same in ferromagnetism.
Through adopting above-mentioned technical scheme, because the cross drill bit after accomplishing by the heating is hotter, and by the clamping lever behind the centre gripping energetically the clamping lever easy adhesion or inlay and establish to the drill bit on difficult the coming off, and the mode through manual operation is troublesome to be difficult for causing the injury again, and through the principle that like poles of first electro-magnet and second electro-magnet repel each other for expansion that the clamping lever can be quick reaches the effect that the clamping lever expandes fast, further improves actual work efficiency.
In summary, the present application includes at least one of the following beneficial technical effects:
1. firstly, a temperature rising device is used for rapidly heating a metal column cut into sections, and after the heating is finished, the metal column is transferred to a forging device through a clamping group, so that the chip grooves of the heated metal column are rapidly forged and formed, the chip grooves do not need to be additionally formed in other processes, the chip grooves are directly formed in one process, the complex process is avoided, and the actual working efficiency is improved; in addition, the setting of centre gripping group can be fast and automatic realization drill bit's transfer, has reduced artificial participation, further improves actual work efficiency.
2. The setting of centre gripping subassembly for the cross drill bit can be removed by the centre gripping in the in-process of production, tightens up and expand through promoting the cylinder, drives the dwang through the motor and rotates the removal that realizes the device, and the device is simple but the effect is fine, and difficult error scheduling problem that appears has improved production efficiency greatly in the working process.
3. When the cross drill produced actually, the size model of the cross drill is inevitable inconsistent, so that the model of the required forming roller is correspondingly adjusted, in order to replace the forming roller more conveniently, only the pulling block needs to be pushed inwards, and then the limiting block is aligned to the sliding groove, so that the limiting block can be pulled out smoothly.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present application.
Fig. 2 is a schematic diagram of the overall structure of the present application.
Fig. 3 is a schematic view of the forging apparatus.
Fig. 4 is an enlarged schematic view at a in fig. 3.
Fig. 5 is an enlarged schematic view at B in fig. 3.
Fig. 6 is a schematic structural view of the opener.
Fig. 7 is a schematic structural view of the clamping group.
Fig. 8 is an enlarged schematic view at C in fig. 7.
FIG. 9 is a schematic process flow diagram of the present application.
Description of reference numerals: 1. forming a frame; 2. a temperature rising device; 3. a clamping group; 4. forging and pressing devices; 21. a vertical plate; 22. moving the plate; 23. an electromagnetic heating coil; 24. a heating through groove; 41. a limiting frame; 42. an extension frame; 43. a forming roller; 44. rolling a channel; 45. a head opener; 421. a rotating wheel; 422. an extension rod; 423. a first stabilizing post; 424. a second stabilizing post; 425. a drive motor; 5. a limiting device; 51. a limiting column; 52. a first threaded rod; 53. a second threaded rod; 54. displaying scales; 426. embedding a groove; 6. a connecting device; 61. a fixed tube; 62. inserting the rod; 63. pulling the block; 64. driving a pressure spring; 65. a limiting block; 66. a sliding groove; 67. a contact groove; 451. a driving cylinder; 452. an arc-shaped slotting die; 453. hinging the ball; 454. a hinge slot; 455. locking the bolt; 31. rotating the rod; 32. a moving block; 33. a fixing plate; 34. a fixed cylinder; 35. a push cylinder; 36. pushing the conical barrel; 37. a clamping rod; 311. a first electromagnet; 341. a second electromagnet.
Detailed Description
The present application is described in further detail below with reference to figures 1-9.
The embodiment of the application discloses a cross drill bit forming method, which is shown in figure 1 and figure 2, and particularly adopts a drill bit forming machine; in the embodiment, the forming machine comprises a forming frame 1, a temperature rising device 2 extending from one side of the forming frame 1 to the other side is arranged above the forming frame 1, and a clamping group 3 for clamping a drill bit device is also arranged on the corresponding forming frame 1; it should be noted that the drill bit device or the drill bit assembly in the present application refers to a drill bit or a semi-finished drill bit, etc.; a forging device 4 is arranged on the upper side of the forming frame 1, and the forging device 4 is matched with the clamping group 3 to forge a chip groove of the drill bit device; correspondingly, the metal column cut into sections is rapidly heated through the temperature rising device 2, and after the heating is finished, the metal column is transferred to the forging and pressing device 4 through the clamping group 3, so that the chip grooves of the heated drill bit device are rapidly forged and formed, the chip grooves do not need to be additionally formed in other processes, the chip grooves are directly formed in one process, the complex process is avoided, and the actual working efficiency is improved; finally, the clamping group 3 is arranged, so that the drill bit can be quickly and automatically transferred, the manual participation is reduced, and the actual working efficiency is further improved.
Continuing to refer to fig. 1 and 2, for the specific structure of the temperature raising device 2 in the present application, the temperature raising device 2 includes a vertical plate 21, the vertical plate 21 is fixedly installed on one side above the forming frame 1 in a welding manner, a moving plate 22 is slidably disposed on the vertical plate 21 in a penetrating manner, and after the position of the moving plate 22 is adjusted, the moving plate 22 is fixed by a bolt so that the moving plate 22 is suitable for actual production needs. An electromagnetic heating coil 23 is fixedly arranged on the moving plate 22, and a heating through groove 24 for a drill bit device is formed by winding the electromagnetic heating coil 23; after the temperature rising device 2 is electrified, the drill bit group is moved into the heating through groove 24 through the clamping group 3, so that the drill bit assembly can be rapidly heated to achieve the effect of rapid plasticity.
Referring to fig. 3 and 4, after the drill bit assembly is heated, the drill bit is taken out of the heating through groove 24 through the clamping group 3, and the heated drill bit assembly is moved to a position of a forging assembly to forge the heated drill bit assembly to form a chip discharge groove, specifically, in the present application, the forging device 4 includes a limiting frame 41 fixed on the forming frame 1, the limiting frame 41 is located between the vertical plate 21 and the clamping group 3, the limiting frame 41 is fixed on the forming frame 1 by welding, extending frames 42 are provided at four corners of the limiting frame 41, the extending frames 42 extend to the center position of the limiting frame 41, and the extending frames 42 can synchronously move towards the center of the limiting frame 41 or synchronously move away from the center of the limiting frame 41; in addition, one end of the extension frame 42, which is far away from the limiting frame 41, is rotatably provided with a forming roller 43, the forming roller 43 is circular, the outer surface of the forming roller 43 is provided with a slotted convex rib, and the four forming rollers 43 are mutually matched to form a rolling channel 44 for performing rolling forming on the drill bit device; when the drill bit assembly heated by the clamping group 3 moves to the position of the rolling channel 44, the forming roller 43 is driven by the extension frame 42 to test pressure in the direction of the drill bit assembly, so that the grooving convex edge forms a chip groove on the surface of the drill bit assembly, and the forming roller 43 for testing pressure on the drill bit assembly is driven to rotate by continuously pulling the clamping group 3, so that a complete chip groove is formed on the drill bit.
Referring to fig. 3 and 4, a specific structure of the extension frame 42 in the present application is shown, in this embodiment, the extension frame 42 includes a rotating wheel 421, an extension rod 422, a first stabilizing column 423 and a second stabilizing column 424; the rotating wheel 421 is rotatably mounted on the forming frame 1, the forming frame 1 is fixedly provided with a driving motor 425 engaged with the inner side of the rotating wheel 421, and the rotating wheel 421 can be driven to rotate by the driving motor 425; the outer side of the rotating wheel 421 is provided with a thread, the extension rods 422 are slidably installed at the corners of the limiting frame 41 and are in threaded connection with the rotating wheel 421, and the extension rods 422 extend towards the rolling channel 44 (it should be noted that the part of the extension rods 422 not involved in the threaded connection with the rotating wheel 421 is provided with a limiting convex rib, that is, the extension rods 422 and the rotating wheel 421 are ensured not to rotate when being threaded, and only the displacement effect is realized); correspondingly, when the driving motor 425 drives the rotating wheel 421 to rotate forward and backward, the extending rods 422 can be driven to be close to or far away from the rolling channel 44, and all the extending rods 422 are controlled by the rotating wheel 421, so that errors caused by inconsistent movement of the extending rods 422 are reduced, and the chip discharge grooves formed in the drill bit are ensured to be more uniform.
In order to ensure that the extension rod 422 can be stabilized during the process of extending and retracting, the first stabilizing column 423 is rotatably installed inside the limiting frame 41, the second stabilizing column is rotatably installed on one side of the extension rod 422 facing the rolling channel 44, and the first stabilizing column 423 is rotatably connected with the second stabilizing column 424. Through the stabilizing action of first stabilization post 423 and second stabilization post 424, can guarantee that extension rod 422 is difficult for squinting at the drill bit subassembly in the operation process and pressurization pressure, improve product production's stability.
Continuing to refer to fig. 3 and 4, since the sizes and models of the drills are different in the actual production process, the models and the spacing adjustment of the forming rollers 43 are also uniformly the same in the production process of the drills of the corresponding models, and in order to be suitable for the production of cross drills of different models, the specific structure of the cross drill is as follows:
the quick change of the forming roller 43 is addressed first: with continued reference to fig. 3 and 4, an embedding groove 426 for installing the forming roller 43 is formed in the extension rod 422, a connecting device 6 is arranged between the extension rod 422 and the forming roller 43, and the connecting device 6 comprises a fixing tube 61, an inserting rod 62, a pulling block 63 and a driving pressure spring 64; in this embodiment, the fixed tube 61 is fixedly installed on the sidewall on one side of the embedding groove 426 and extends toward the other corresponding sidewall, the inserting rod 62 is inserted and installed on the sidewall on the other side of the embedding groove 426 and slidably inserted into the fixed tube 61, the pulling block 63 is fixedly installed at one end of the inserting rod 62 far away from the fixed tube 61, the driving compression spring 64 is arranged between the pulling block 63 and the outer sidewall of the extension rod 422 and drives the pulling block 63 to have a tendency of moving toward the direction far away from the sidewall of the extension rod 422; besides, the one end of the inserting rod 62 far away from the pulling block 63 is integrally provided with a limiting block 65, a sliding groove 66 for sliding the limiting block 65 is formed in the fixed pipe 61, and a contact groove 67 which is contacted with the limiting block 65 and is communicated with the sliding groove 66 is formed in the fixed pipe 61. When the roller wheel of different models needs to be replaced to cooperate with the drill bit of different models for production, the roller wheel is sleeved on the fixed pipe 61, the inserting rod 62 penetrates through the extension rod 422 to overcome the resilience force of the driving pressure spring 64 and is inserted into the fixed pipe 61, and finally the pull block 63 is rotated to enable the limiting block 65 to abut against the side wall of the abutting groove 67.
Secondly, it is to the roll wheel controller interval of different models, it is corresponding, still be provided with stop device 5 on the extension rod 422 of bisymmetry, refer to fig. 5, in this embodiment, stop device 5 includes spacing post 51, first threaded rod 52, second threaded rod 53 and shows scale 54, concretely, spacing post 51 fixed mounting is on extension rod 422, first threaded rod 52 fixed mounting is on spacing post 51 and to keeping away from the direction of spacing post 51 and extending, second threaded rod 53 threaded mounting is on first threaded rod 52, and corresponding second threaded rod 53 can contradict each other, be provided with the demonstration scale 54 that shows the relative length between first threaded rod 52 and the second threaded rod 53 on first threaded rod 52. When the roll-in wheel is great, just can realize roll-in passageway 44 after extension rod 422 only need stretch out less distance promptly, and in order to prevent that lasting effect from causing forming roll 43 to damage on acting on extension rod 422, so adjust the interval between first threaded rod 52 and the second threaded rod 53, guarantee when forming roll 43 can contact each other, corresponding second threaded rod 53 also can contact each other, offset the pressure between the forming roll 43, guarantee the safety of forming roll 43 use.
Referring to fig. 6, in the production process of the cross drill, in addition to the chip grooves, in order to achieve better grooving efficiency, tool grooves need to be formed at the end portions of the cross drill; therefore, in this embodiment, after the chip groove is forged, the extension rod 422 is further provided with the opener 45, the opener 45 is provided on the extension frame 42 and extends in the direction of the rolling channel 44, and the opener 45 contacts with the end of the drill bit device to open the drill bit groove.
In this embodiment, the starting device 45 includes a plurality of driving cylinders 451 fixedly mounted at the corners of the limiting frame 41, the driving cylinders 451 extend toward the rolling channel 44, an arc-shaped grooving die 452 is disposed at the end of the driving cylinders 451, the arc-shaped grooving dies 452 cooperate with each other to perform grooving on the drill bit assembly, and the number of the arc-shaped grooving dies 452 is four in this embodiment; after the chip removal groove is finished, the drill bit is moved to the position of the arc-shaped grooving die 452 through the clamping group 3, the driving air cylinder 451 controls the arc-shaped grooving die 452 to synchronously gather and move, and therefore the drill bit is rapidly processed at the beginning on the heated drill bit to form a chip groove. The mode avoids the follow-up extra welding tool bit and accelerates the production process.
Correspondingly, with reference to fig. 6, as the grooving parameters of the drill bits of different models are different, and in order to more conveniently adjust the arc-shaped grooving die 452, a hinge ball 453 is integrally arranged on one side of the arc-shaped grooving die 452 close to the driving cylinder 451, a hinge groove 454 for the hinge ball 453 to be inserted and hinged is formed in the driving cylinder 451, and a locking bolt 455 for driving the hinge groove 454 to clamp the hinge ball 453 is arranged on the driving cylinder 451. Through the elasticity of locking bolt 455, can quick adjustment hinge ball 453's angle to adjust the angle of arc fluting mould 452, be convenient for actual production control.
Referring to fig. 7 and 8, a specific structure of the clamping group 3 in the present embodiment is shown; correspondingly, the clamping group 3 comprises a rotating rod 31, a moving block 32, a fixed plate 33, a fixed barrel 34, a pushing cylinder 35, a pushing conical barrel 36 and a clamping rod 37; in this embodiment, dwang 31 rotates and installs on shaping frame 1 and rotatory by motor drive, the spacing slip of movable block 32 on shaping frame 1 and with dwang 31 threaded connection, fixed plate 33 is installed to the movable block 32 on, fixed cylinder 34 fixed mounting to fixed plate 33 on and extend to the direction of riser 21, a plurality of supporting rods 37 rotate and install on fixed cylinder 34 and one end extends to fixed cylinder 34 in, push cylinder 35 installs to fixed cylinder 34 bottom, push cone 36 rigid coupling slides in the one end that push cylinder 35 stretches out the end and its lateral wall and supporting rod 37 stretch into fixed cylinder 34 and contradict. Thereby drive dwang 31 through the motor and rotate control movable block 32 round trip movement on shaping frame 1, when needs carry out the drill bit centre gripping, open push cylinder 35 to drive the conical barrel synchronous movement, when its left side in the drawing removed, order about the part of holding rod 37 centre gripping drill bit and press from both sides tightly, when the conical barrel moved right, can take off the drill bit that production was accomplished.
Finally, as the cross drill bit after being heated is hot and is strongly clamped by the clamping rod 37, the clamping rod 37 is easily adhered or embedded on the drill bit and is not easy to fall off, but the cross drill bit is troublesome and easily damaged by a manual operation mode; therefore, in the present application, the first electromagnet 311 is fixed on one side of the clamping rod 37 close to the inner side wall of the fixed cylinder 34, the second electromagnet 341 corresponding to the first electromagnet 311 is arranged on the inner side wall of the fixed cylinder 34, and the first electromagnet 311 and the second electromagnet 341 have the same magnetism. The effect of rapid expansion of the clamping rod 37 is achieved by the principle that like poles of the first electromagnet 311 and the second electromagnet 341 repel each other, so that the material taking is convenient, and the actual working efficiency is further improved.
Referring to fig. 9, the method for producing the drill bit device using the above drill bit forming machine includes the steps of:
s1: cutting the steel column or the metal column into sections, cutting the steel column or the metal column into the length required by the drill bit, and fixing the end part of the cut steel column or the metal column through the clamping group 3;
s2: heating and raising the temperature, wherein the steel column or the metal column penetrates through the rolling channel 44 and extends into the heating through groove 24 through the clamping of the clamping group 3, and the temperature of the steel column or the metal column is rapidly raised through the electrification of the heating coil;
s3: forging and forming, namely retracting the heated steel column to the position of the rolling channel 44 through the clamping group 3, controlling the forming roller 43 to approach to the central position of the limiting frame 41 through the extension frame 42 after reaching the preset position, namely reducing the space of the rolling channel 44, and continuously pulling through the clamping group 3 to form a chip groove on the heated steel column through the slotted convex rib;
s4: grinding the drill bit, after the chip grooves on the steel column are formed, enabling one end, far away from the clamping group 3, of the steel column to reach the position of the opener 45 through the clamping movement of the clamping group 3, and cutting the end part of the steel column through the opener 45 to form an opening groove;
s5: and (3) cooling and coating oil, namely cooling the finished drill bit with the opening groove and the chip groove, coating oil on the cooled drill bit and packaging.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. A cross drill forming method is characterized in that: the forming machine comprises a forming frame (1), wherein a temperature rising device (2) extending from one side of the forming frame (1) to the other side is arranged above the forming frame (1), a clamping group (3) for clamping a drill bit device is correspondingly arranged on the forming frame (1), a forging device (4) is arranged on the upper side of the forming frame (1), and the forging device (4) and the clamping group (3) are matched with each other to forge a chip groove of the drill bit device, wherein the temperature rising device (2) is arranged above the forming frame (1);
the temperature rising device (2) comprises a vertical plate (21), the vertical plate (21) is arranged on one side above the forming frame (1), the temperature rising device further comprises a moving plate (22) which is arranged on the vertical plate (21) in a penetrating and sliding mode and an electromagnetic heating coil (23) which is arranged on the moving plate (22), the electromagnetic heating coil (23) is wound to form a heating through groove (24) for a drill bit device, the clamping group (3) is arranged on one side of the forming frame (1) opposite to the vertical plate (21), and the clamping drill bit assembly extends into the heating through groove (24) to be heated;
forging and pressing device (4) are including being fixed in spacing frame (41) on shaping frame (1), spacing frame (41) are located between riser (21) and centre gripping group (3), still include:
extension frame (42): the limiting frame is arranged at the corner of the limiting frame (41) and extends towards the center of the limiting frame (41);
forming roller (43): the forming roller is rotatably arranged at one end of the extending frame (42) far away from the limiting frame (41), the outer surface of the forming roller (43) is provided with a slotted convex rib, and the forming rollers (43) are mutually matched to form a rolling channel (44) for rolling and forming a drill bit device;
opener (45): the cutter head device is arranged on the extending frame (42) and extends towards the direction of the rolling channel (44), and the cutter head device (45) is contacted with the end part of the drill head device to realize the opening of the drill head groove;
the method for producing the drill bit device by using the drill bit forming machine comprises the following steps:
s1: cutting the steel column or the metal column into sections, cutting the steel column or the metal column into the length required by the drill bit, and fixing the end part of the steel column or the metal column after cutting through the clamping group (3);
s2: heating, namely heating, wherein the steel column or the metal column penetrates through the rolling channel (44) and extends into the heating through groove (24) through clamping of the clamping group (3), and the temperature of the steel column or the metal column is rapidly raised through electrification of the heating coil;
s3: forging and pressing, namely retracting the heated steel column to the position of a rolling channel (44) through the clamping group (3), controlling the forming roller (43) to approach to the central position of the limiting frame (41) through the extension frame (42) after reaching a preset position, namely reducing the space of the rolling channel (44), and continuously pulling through the clamping group (3) to form a chip groove on the heated steel column through the slotted convex edge;
s4: grinding a drill bit, after a chip groove on the steel column is formed, enabling one end, far away from the clamping group (3), of the steel column to reach the position of a opener (45) through clamping movement of the clamping group (3), and cutting the end of the steel column through the opener (45) to form an opening groove;
s5: and (3) cooling and coating oil, namely cooling the finished drill bit with the opening groove and the chip groove, coating oil on the cooled drill bit and packaging.
2. A method of forming a cross bit as claimed in claim 1, wherein: the extension frame (42) comprises a rotating wheel (421), an extension rod (422), a first stabilizing column (423) and a second stabilizing column (424), the rotating wheel (421) is rotatably arranged on the forming frame (1), the outer side of the rotating wheel (421) is provided with a thread, the extension rod (422) is arranged at the corner of the limit frame (41) in a penetrating and sliding way and is connected with the rotating wheel (421) through screw thread, and a plurality of extension rods (422) are all arranged towards the rolling channel (44) in an extending way, the first stabilizing column (423) is rotatably arranged at the inner side of the limiting frame (41), the second stabilizing column is rotatably arranged at one side of the extension rod (422) facing the rolling channel (44), and the first stabilizing post (423) is rotationally connected with the second stabilizing post (424), and a driving motor (425) meshed with the inner side of the rotating wheel (421) is fixedly arranged on the forming frame (1).
3. A method of forming a cross bit as claimed in claim 2, wherein: bisymmetry still be provided with stop device (5) on extension rod (422), stop device (5) are including spacing post (51), first threaded rod (52), second threaded rod (53) and show scale (54), and are specific, spacing post (51) fixed mounting is on extension rod (422), first threaded rod (52) fixed mounting is on spacing post (51) and to the direction of keeping away from spacing post (51) extending, second threaded rod (53) screw thread is installed on first threaded rod (52), and second threaded rod (53) that correspond can contradict each other, be provided with on first threaded rod (52) and show scale (54) of relative length between first threaded rod (52) and second threaded rod (53).
4. A method of forming a cross bit as claimed in claim 2, wherein: set up on extension rod (422) and supply inlaying of forming roll (43) installation to establish groove (426), just be provided with connecting device (6) between extension rod (422) and forming roll (43), connecting device (6) include:
the fixed pipe (61) is fixedly arranged on the side wall at one side of the embedding groove (426) and extends towards the other corresponding side wall;
the inserting rod (62) is inserted and installed on the side wall on the other side of the embedding groove (426) and is inserted into the fixed pipe (61) in a sliding mode;
the pulling block (63) is fixedly arranged at one end of the inserting rod (62) far away from the fixed pipe (61);
the driving pressure spring (64) is arranged between the pulling block (63) and the outer side wall of the extension rod (422) and drives the pulling block (63) to have a tendency of moving towards the direction far away from the side wall of the extension rod (422);
insert and establish pole (62) and keep away from one end an organic whole of pulling piece (63) and be provided with stopper (65), set up on fixed pipe (61) and supply sliding groove (66) that stopper (65) slided, still set up in fixed pipe (61) and contradict and with stopper (65) conflict groove (67) that communicate each other with sliding groove (66).
5. A method of forming a cross bit as claimed in claim 1, wherein: the end opening device (45) comprises a plurality of driving cylinders (451) fixedly mounted at the corners of the limiting frame (41), the driving cylinders (451) extend towards the rolling channel (44), arc-shaped grooving dies (452) are arranged at the end parts of the driving cylinders (451), and the arc-shaped grooving dies (452) are matched with each other to perform groove pressing on the drill bit assembly;
one side of the arc-shaped grooving die (452) close to the driving cylinder (451) is integrally provided with a hinge ball (453), the driving cylinder (451) is provided with a hinge groove (454) for the hinge ball (453) to be inserted and hinged, and the driving cylinder (451) is provided with a locking bolt (455) for driving the hinge groove (454) to clamp the hinge ball (453).
6. A method of forming a cross bit as claimed in claim 1, wherein: the clamping group (3) comprises a rotating rod (31), a moving block (32), a fixed plate (33), a fixed cylinder (34), a pushing cylinder (35), a pushing conical barrel (36) and a clamping rod (37), the rotating rod (31) is rotatably arranged on the forming frame (1) and is driven by a motor to rotate, the moving block (32) is limited and glided on the forming frame (1) and is in threaded connection with the rotating rod (31), the fixed plate (33) is arranged on the moving block (32), the fixed cylinder (34) is fixedly arranged on the fixed plate (33) and extends towards the direction of the vertical plate (21), the clamping rods (37) are rotatably arranged on the fixed cylinder (34) and one end of each clamping rod extends towards the inside of the fixed cylinder (34), the push cylinder (35) is installed to the bottom of the fixed cylinder (34), the push conical barrel (36) is fixedly connected to the end, extending out of the push cylinder (35), of the push conical barrel, and the side wall of the push conical barrel slides and abuts against the end, extending into the fixed cylinder (34), of the clamping rod (37).
7. The method of claim 6, wherein: one side of the clamping rod (37) close to the inner side wall of the fixed cylinder (34) is fixed with a first electromagnet (311), the inner side wall of the fixed cylinder (34) is provided with a second electromagnet (341) corresponding to the first electromagnet (311), and the first electromagnet (311) and the second electromagnet (341) have the same magnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318116.6A CN113977214A (en) | 2021-11-09 | 2021-11-09 | Cross drill bit forming method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111318116.6A CN113977214A (en) | 2021-11-09 | 2021-11-09 | Cross drill bit forming method |
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| CN113977214A true CN113977214A (en) | 2022-01-28 |
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| CN202111318116.6A Pending CN113977214A (en) | 2021-11-09 | 2021-11-09 | Cross drill bit forming method |
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| CN116237775A (en) * | 2023-05-12 | 2023-06-09 | 深圳市玉雕数控科技有限公司 | Burr removing device for engraving and milling machine |
| CN116967393A (en) * | 2023-06-27 | 2023-10-31 | 浙江野牛工具有限公司 | Processing equipment and processing method of double-groove trephine |
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