Die ash removal device and automobile half axle vertical forging die
By setting air blowing holes and air exhaust holes on the lower mold part of the automobile half-axle vertical forging mold to form a transverse cleaning channel, the problem of difficulty in cleaning the oxide scale in the lower mold is solved, and the length accuracy of the forming part and the mass production of long rods is achieved.
Patent Information
- Application Number
- CN202420563015.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-22
AI Technical Summary
In the lower mold of the automobile half-axle vertical forging mold, it is difficult to clean up debris such as oxide scale, which affects the length accuracy of the molded parts.
Design a mold dust cleaning device, including setting air blowing holes and air exhaust holes on the lower part of the half-axle vertical forging mold of the automobile, forming a transverse cleaning channel, combining the vertical forging process and the mold mold frame structure to achieve the cleaning of the oxide scale.
Through the use of the mold cleaning device, most of the oxide scales are cleaned to ensure the length accuracy of the molded parts, and realize the mass production of vertical local forging of long rods.
Smart Images
Figure CN222588002U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile parts production, in particular to a mold dust cleaning device and an automobile half-axle vertical forging mold. Background Art
[0002] The half shaft of a commercial vehicle is the drive shaft in the drive axle unit that connects the wheels and the driven gear of the main reducer to achieve wheel drive and differential turning. It usually has an external spline at one end and a flange at the other end. The flange is connected to the wheel hub by bolts, and the external spline engages with the internal spline of the driven gear of the main reducer.
[0003] The flange at the upper end of the existing half-axle structure is a relatively complex rotating body structure, and the overall processing method of the half-axle is relatively complicated. It can be processed and formed multiple times through the automobile half-axle vertical forging die according to the specific structure. The workpiece is generally fixed in the lower die of the die, with a depth of 800 to 1200 mm. The debris generated by the processing such as oxide scale is easy to accumulate in the lower die and is difficult to clean, which directly affects the length accuracy of the formed part.
[0004] In view of the above-mentioned defects, the inventor of the present invention finally obtained the present invention after a long period of research and practice. Utility Model Content
[0005] In order to solve the above-mentioned technical defects, the technical solution adopted by the utility model is to provide a mold cleaning device, including a blowing hole and an exhaust hole, the blowing hole and the exhaust hole are both arranged on the lower mold part of the automobile half-axle vertical forging mold, the lower mold part includes a lower mold and a barrel, the lower mold is fixedly set on the workbench through the lower mold plate, the lower mold is provided with a placement cavity, the barrel is fixedly set on the workbench, a discharge hole is vertically arranged in the barrel, the discharge hole is arranged corresponding to the placement cavity, the automobile half-axle bar material is placed in the discharge hole and the placement cavity at the same time, the blowing hole and the exhaust hole are horizontally arranged at the bottom of the discharge hole, the blowing hole is connected to the external air circuit, and the air circuit blows compressed air into the discharge hole through the blowing hole.
[0006] Preferably, the blowing holes and the exhaust holes are coaxially arranged in a one-to-one correspondence to form a transverse cleaning channel.
[0007] Preferably, a top material hole is provided at the bottom of the discharge hole, a top material rod is provided in the top material hole, the top material rod can move vertically, a top material block is provided at the upper end of the top material rod, the top material block is provided in the discharge hole, the top material block is configured as a cylindrical block-shaped piece, and the cross-sectional diameter of the top material block is smaller than the diameter of the discharge hole.
[0008] Preferably, a first blanking gap is provided between the ejecting block and the inner wall of the discharge hole, and a second blanking gap is provided between the ejecting rod and the inner wall of the ejecting hole.
[0009] Preferably, a plurality of first blanking grooves are axially extended on the arc surface of the top material block, and the first blanking grooves are evenly distributed in a ring shape with the axis of the top material block as the center, so that the first blanking gap is formed by the first blanking grooves.
[0010] Preferably, a plurality of second blanking grooves are axially extended on the arc surface of the push rod, and the second blanking grooves are evenly distributed in a ring shape with the axis of the push rod as the center, so that the second blanking gap is formed by the second blanking grooves.
[0011] Preferably, the mold cleaning device includes a bottom lateral exhaust group and a middle lateral exhaust group, the bottom lateral exhaust group and the middle lateral exhaust group are arranged at different heights of the discharge hole, the bottom lateral exhaust group is arranged at the bottom of the discharge hole, and the middle lateral exhaust group is arranged above the bottom lateral exhaust group, the bottom lateral exhaust group and the middle lateral exhaust group each include at least one blowing hole and a corresponding exhaust hole, the axes of the blowing holes in the bottom lateral exhaust group are arranged on the same horizontal plane, the axes of the blowing holes in the middle lateral exhaust group are arranged on the same horizontal plane, and the distance between the axes of the blowing holes in the bottom lateral exhaust group and the axes of the blowing holes in the middle lateral exhaust group in the height direction is greater than the thickness dimension of the top material block.
[0012] Preferably, the gas circuit is provided with solenoid valves corresponding to the bottom lateral exhaust group and the middle lateral exhaust group, respectively, and the solenoid valves control the opening and closing of the bottom lateral exhaust group or the middle lateral exhaust group, respectively.
[0013] Preferably, a vertical forging die for an automobile half-axle comprises an upper die portion and a lower die portion, wherein the upper die portion comprises a first upper module, a second upper module and a third upper module, wherein the first upper module, the second upper module and the third upper module are all fixedly arranged on the upper die plate, and the upper die plate is slidably arranged on a sliding assembly, wherein the first upper module, the second upper module and the third upper module are arranged in a straight line along the sliding direction of the upper module, wherein the first upper module corresponds to the primary upsetting station, the second upper module corresponds to the intermediate upsetting station, and the third upper module corresponds to the final upsetting station, wherein the die cleaning device is arranged on the lower die portion, wherein the first upper module, the second upper module and the third upper module are all provided with a forming cavity, and the lower die is provided with a placing cavity, wherein each of the forming cavities can be respectively provided corresponding to the placing cavity, and the upper end of the bar placed in the placing cavity corresponds to the forming cavity.
[0014] Preferably, the sliding assembly includes a slide plate, a slide and a fixed plate, the upper template is fixedly arranged on the slide plate, the slide plate is slidably connected to the slide plate, the slide plate can slide linearly along the slide plate, the slide plate is fixedly arranged on the fixed plate, and the fixed plate is connected to the pressing block of the press.
[0015] Compared with the prior art, the utility model has the beneficial effect that: the utility model forms the transverse cleaning channel by arranging the blowing hole and the exhaust hole at appropriate positions of the lower section of the barrel. Under the action of the transverse cleaning channel, most of the oxide scale is cleaned out of the barrel. Combined with the vertical forging process and the mold frame structure, the vertical partial forging batch production of long rods is realized. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the mold cleaning device when pushing the material;
[0017] Figure 2 It is a structural schematic diagram of the mold cleaning device during processing;
[0018] Figure 3 is a three-dimensional structural view of the mandrel;
[0019] Figure 4 It is a structural view of the vertical forging die of the automobile half-axle.
[0020] The numbers in the figure represent:
[0021] 1-blowing hole; 2-exhaust hole; 3-lower mold part; 4-bottom lateral exhaust group; 5-middle lateral exhaust group; 6-upper mold part; 31-lower mold; 32-barrel; 33-lower template; 61-first upper module; 62-second upper module; 63-third upper module; 64-upper template; 65-forming cavity; 311-placing cavity; 321-discharging hole; 322-top hole; 323-top rod; 324-top block; 325-first blanking gap; 326-second blanking gap. DETAILED DESCRIPTION
[0022] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.
[0023] Embodiment 1
[0024] like Figure 1 , Figure 2 As shown, Figure 1 is a schematic diagram of the structure of the mold cleaning device when pushing the material. Figure 2 It is a schematic diagram of the structure of the mold cleaning device during processing.
[0025] The mold cleaning device of the utility model includes an air blowing hole 1 and an exhaust hole 2, and the air blowing hole 1 and the exhaust hole 2 are both arranged on the lower mold part 3 of the automobile half-axle vertical forging mold, and the lower mold part 3 includes a lower mold 31 and a barrel 32, and the lower mold 31 is fixedly arranged on a workbench through a lower mold plate 33, and the lower mold 31 is provided with a placement cavity 311, and the barrel 32 is fixedly arranged on the workbench, and a discharge hole 321 is vertically arranged in the barrel 32, and the discharge hole 321 is arranged corresponding to the placement cavity 311, and the automobile half-axle bar material is placed in the discharge hole 321 and the placement cavity 311 at the same time, and the air blowing hole 1 and the exhaust hole 2 are horizontally arranged at the bottom of the discharge hole 321, and the air blowing hole 1 is connected to an external air circuit, and the air circuit blows compressed air into the discharge hole 321 through the air blowing hole 1.
[0026] Generally, an air nozzle is provided in the air blowing hole 1 , the air path is connected to the air nozzle, and compressed air is blown into the discharge hole 321 through the air nozzle.
[0027] The blowing holes 1 and the exhaust holes 2 are coaxially arranged in a one-to-one correspondence to form a transverse cleaning channel, so as to facilitate the direct removal of the oxide scale between the blowing holes 1 and the exhaust holes 2 from the inside of the barrel 32.
[0028] A ejection hole 322 is provided at the bottom of the discharge hole 321, and a ejection rod 323 is provided in the ejection hole 322. The ejection rod 323 can move vertically, and the bar material in the discharge hole 321 can be ejected by the ejection operation of the ejection rod 323, so as to facilitate the removal of the processed bar material.
[0029] A lifting block 324 is provided at the upper end of the lifting rod 323, and the lifting block 324 is arranged in the discharge hole 321. The lifting block 324 is configured as a cylindrical block piece, and the cross-sectional diameter of the lifting block 324 is slightly smaller than the diameter of the discharge hole 321, so that the lifting block 324 can move freely vertically in the discharge hole 321, and can also provide stable support for the bottom of the rod.
[0030] Preferably, a first blanking gap 325 is provided between the ejector block 324 and the inner wall of the discharge hole 321, and a second blanking gap 326 is provided between the ejector rod 323 and the inner wall of the ejector hole 322. Under the blowing action of the blowing hole 1, part of the oxide scale on the upper surface of the ejector block 324 can fall from the first blanking gap 325 to below the ejector block 324 and further be discharged downward along the ejector hole 322 through the second blanking gap 326, thereby forming a vertical cleaning channel for discharge.
[0031] like Figure 3 As shown, Figure 33D view of the structure of the ejector rod; generally, a plurality of first blanking grooves are axially extended on the arc surface of the ejector block 324, and the first blanking grooves are evenly distributed in an annular shape with the axis of the ejector block 324 as the center, so that the first blanking gap 325 is formed by the first blanking grooves. The cross section of the first blanking groove can be set to other reasonable shapes such as an arc shape. Generally, the cross section of the first blanking groove does not overlap with the bottom of the bar material to avoid affecting the forging of the bar material.
[0032] A plurality of second blanking grooves are axially extended on the arc surface of the push rod 323, and the second blanking grooves are evenly distributed in an annular shape with the axis of the push rod 323 as the center, so that the second blanking grooves form the second blanking gap 326. The second blanking grooves can be set to other reasonable shapes such as plane grooves.
[0033] The utility model is aimed at the processing of long-sized bars. The depth of the barrel 32 used to fix the bars in the processing mold generally reaches 800mm to 1200mm, and it is difficult to clean the oxide scale accumulated inside by conventional methods. The horizontal cleaning channel is formed by setting the blowing hole 1 and the exhaust hole 2 at a suitable position in the lower section of the barrel 32. The upper end of the push rod 323 is designed to be plum blossom-shaped, and a flat surface is milled out of the downward extension section to form a sufficient gap with the inner wall of the barrel 32 without affecting the strength, thereby forming the vertical cleaning channel. Under the multiple cleaning effects of the horizontal cleaning channel and the vertical cleaning channel, most of the oxide scale is cleaned out of the barrel 32. Combined with the vertical forging process and the mold frame structure, vertical partial forging and mass production of 1.5-meter-long rods are realized.
[0034] Embodiment 2
[0035] Preferably, the mold cleaning device includes a bottom transverse exhaust group 4 and a middle transverse exhaust group 5, the bottom transverse exhaust group 4 and the middle transverse exhaust group 5 are arranged at different heights of the discharge hole 321, the bottom transverse exhaust group 4 is arranged at the bottom of the discharge hole 321, the middle transverse exhaust group 5 is arranged above the bottom transverse exhaust group 4, the bottom transverse exhaust group 4 and the middle transverse exhaust group 5 each include at least one blowing hole 1 and a correspondingly arranged exhaust hole 2, the axes of the blowing holes 1 in the bottom transverse exhaust group 4 are arranged on the same horizontal plane, and the middle transverse exhaust group 5 is arranged at the same height as the discharge hole 321. The axes of the blowing holes 1 in the air group 5 are arranged on the same horizontal plane, and the distance in the height direction between the axes of the blowing holes 1 in the bottom transverse exhaust group 4 and the axes of the blowing holes 1 in the middle transverse exhaust group 5 is greater than the thickness dimension of the top material block 324, so that when the top material block 324 is located at the bottom of the discharge hole 321, the middle transverse exhaust group 5 can clean the upper surface of the top material block 324, and when the top material block 324 pushes material upward, the bottom transverse exhaust group 4 and the middle transverse exhaust group 5 can simultaneously clean the bottom of the discharge hole 321.
[0036] The gas circuit is provided with electromagnetic valves corresponding to the bottom transverse exhaust group 4 and the middle transverse exhaust group 5, respectively, for realizing independent opening or closing of the bottom transverse exhaust group 4 and the middle transverse exhaust group 5, respectively.
[0037] Embodiment 3
[0038] like Figure 4 As shown, Figure 4 The structural view of the automobile half-axle vertical forging die. The automobile half-axle vertical forging die of the utility model comprises an upper die portion 6 and a lower die portion 3, wherein the upper die portion 6 comprises a first upper module 61, a second upper module 62 and a third upper module 63, wherein the first upper module 61, the second upper module 62 and the third upper module 63 are all fixedly arranged on an upper template 64, wherein the upper template 64 is slidably arranged on a sliding assembly, wherein the first upper module 61, the second upper module 62 and the third upper module 63 are arranged in a straight line along the sliding direction of the upper module, wherein the first upper module 61 corresponds to the A primary upsetting station is provided, the second upper module 62 corresponds to the intermediate upsetting station, the third upper module 63 corresponds to the final upsetting station, the mold cleaning device is provided on the lower mold part 3, the first upper module 61, the second upper module 62 and the third upper module 63 are all provided with a forming cavity 65, the lower mold 31 is provided with a placement cavity 311, each of the forming cavities 65 can be respectively provided corresponding to the placement cavity 311, and the upper end of the bar placed in the placement cavity 311 is provided corresponding to the forming cavity 65.
[0039] The sliding assembly includes a slide plate, a slide table and a fixed plate, the upper mold plate 64 is fixedly arranged on the slide plate, the slide plate is slidably connected to the slide table, the slide plate can slide linearly along the slide table, the slide table is fixedly arranged on the fixed plate, the fixed plate is connected to the pressing block of the press, and the upper mold part 6 is pressed downward toward the lower mold part 3 by applying pressure from the press, thereby realizing the top upsetting operation of the forming cavity 65 on the upper end of the bar material.
[0040] The upper mold part 6 is provided with a plurality of workstations. Under the control and drive of the hydraulic or electric control system of the press, the first upper mold block 61, the second upper mold block 62 and the third upper mold block 63 are moved forward and backward by a preset distance so that the upper mold of each workstation is aligned with the lower mold 31.
[0041] The utility model sets different upper modules and realizes the transformation of different forming stations through the linear sliding of the upper modules, so that the bar material set on the lower die part 3 can be subjected to multiple upsetting and gathering, so as to complete the forging of the flange part through a conventional press. Compared with other processing methods in the prior art, the equipment investment is small, the material utilization rate is high, the processing cost is low and the processing efficiency is high.
[0042] Generally, the forming cavity 65 is configured as a cylindrical structure, and the upper end diameter of the forming cavity 65 is smaller than the lower end diameter of the forming cavity 65, so as to realize the upsetting operation of the upper end of the bar material. The lower end of the forming cavity 65 and the lower end surfaces of the first upper die block 61, the second upper die block 62 and the third upper die are connected by arc transition.
[0043] Preferably, the depths of the forming cavity 65 of the first upper module 61, the second upper module 62 and the third upper die decrease successively, and the maximum cross-sectional diameters of the forming cavity 65 of the first upper module 61, the second upper module 62 and the third upper die increase successively, thereby gradually forming a pre-forged billet of a desired shape and size through the first upper module 61, the second upper module 62 and the third upper die successively.
[0044] Generally, the lower end surfaces of the first upper die block 61, the second upper die block 62 and the third upper die are at the same height, so as to ensure that when the first upper die block 61, the second upper die block 62 and the third upper die are clamped on the lower die 31, the downward stroke of the upper die portion 6 driven by the press is consistent, which is more convenient for continuous processing. The first upper die block 61, the second upper die block 62 and the third upper die are all provided with an upper die seat, and the upper die seat and the corresponding upper die are designed as an assembly. The upper die seat of each station is made into a stepped height. By adjusting the height of the upper die of each station, the goal of ensuring the consistency of the height of the upper die seat and the upper die assembly is achieved.
[0045] By arranging the mold cleaning device of the utility model on the automobile half-axle vertical forging mold, multi-station processing of the same mold is likely to cause more processing waste. The arrangement of the mold cleaning device makes it easier to achieve a continuous processing state of multiple upper molds of the automobile half-axle vertical forging mold of the utility model, thereby achieving rapid processing.
[0046] The specific cleaning steps of the automobile half-axle vertical forging die are as follows:
[0047] When the entire forging process cycle of the die is completed and the ejector 323 ejects the workpiece, the PLC of the press controls the solenoid valve in the air circuit to open the bottom transverse exhaust group 4 and the middle transverse exhaust group 5 at the same time, and the air nozzle blows compressed air into the barrel 32. The exhaust hole 2 is provided on the barrel wall of the barrel 32 opposite the air nozzle. Three flat surfaces, namely the second blanking grooves, are milled on the cylindrical surface of the ejector 323. The second blanking gap 326 of about 3 mm is formed between the flat surface and the ejector hole 322. Under the agitation of compressed air, the oxide scale is fragmented, and at the same time, the oxide scale is pulled out of the barrel 32 through the exhaust hole 2 and the second blanking gap 326;
[0048] After the robot grabs the workpiece, the PLC of the press controls the return stroke of the lower ejector cylinder, and the ejector rod 323 naturally falls to the lower limit position under the action of gravity; the middle transverse exhaust group 5 will be exposed above the ejection block 324, and at this time, the PLC of the press controls the electromagnetic valve of the corresponding air path of the bottom transverse exhaust group 4 to close, leaving only the air path of the middle transverse exhaust group 5 in an open state, and a part of the residual oxide scale is blown out of the barrel 32 through the exhaust hole 2 of the middle transverse exhaust group 5, and the other part falls to the lower layer through the first blanking gap 325, and is blown out of the barrel 32 during the purging process of the next ejection cycle;
[0049] While the above actions are being completed, the press and robot complete the unloading, mold transfer, and forming cycle, waiting for the next ejection and air blowing process to clean the oxide scale.
[0050] The above is only a preferred embodiment of the utility model, which is only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences can be made within the spirit and scope defined by the claims of the utility model, but they will all fall within the scope of protection of the utility model.
Claims
1. A mold cleaning device, characterized in that: It includes a blowing hole and an exhaust hole, both of which are arranged on the lower die part of the vertical forging die of the automobile half-axle. The lower die part includes a lower die and a barrel. The lower die is fixedly arranged on a workbench through a lower template. The lower die is provided with a placement cavity. The barrel is fixedly arranged on the workbench. A discharge hole is vertically arranged in the barrel. The discharge hole is arranged corresponding to the placement cavity. The automobile half-axle bar is placed in the discharge hole and the placement cavity at the same time. The blowing hole and the exhaust hole are horizontally arranged at the bottom of the discharge hole. The blowing hole is connected to an external air circuit, and the air circuit blows compressed air into the discharge hole through the blowing hole.
2. The mold cleaning device according to claim 1, characterized in that: The blowing holes and the exhaust holes are coaxially arranged in a one-to-one correspondence to form a transverse cleaning channel.
3. The mold cleaning device according to claim 2, characterized in that: A top material hole is arranged at the bottom of the discharge hole, a top material rod is arranged in the top material hole, the top material rod can move vertically, a top material block is arranged at the upper end of the top material rod, the top material block is arranged in the discharge hole, the top material block is arranged as a cylindrical block piece, and the cross-sectional diameter of the top material block is smaller than the diameter of the discharge hole.
4. The mold cleaning device according to claim 3, characterized in that: A first blanking gap is provided between the ejecting block and the inner wall of the discharge hole, and a second blanking gap is provided between the ejecting rod and the inner wall of the ejecting hole.
5. The mold cleaning device according to claim 4, characterized in that: A plurality of first blanking grooves are axially extended on the arc surface of the top material block, and the first blanking grooves are evenly distributed in a ring shape with the axis of the top material block as the center, so that the first blanking gap is formed by the first blanking grooves.
6. The mold cleaning device according to claim 4, characterized in that: A plurality of second blanking grooves are axially extended on the arc surface of the push rod, and the second blanking grooves are evenly distributed in a ring shape with the axis of the push rod as the center, so that the second blanking gap is formed by the second blanking grooves.
7. The mold cleaning device according to claim 4, characterized in that: The mold cleaning device includes a bottom lateral exhaust group and a middle lateral exhaust group, the bottom lateral exhaust group is arranged at the bottom of the discharge hole, and the middle lateral exhaust group is arranged above the bottom lateral exhaust group, the bottom lateral exhaust group and the middle lateral exhaust group each include at least one blowing hole and a corresponding exhaust hole, the axes of the blowing holes in the bottom lateral exhaust group are arranged on the same horizontal plane, the axes of the blowing holes in the middle lateral exhaust group are arranged on the same horizontal plane, and the distance in the height direction between the axes of the blowing holes in the bottom lateral exhaust group and the axes of the blowing holes in the middle lateral exhaust group is greater than the thickness dimension of the top material block.
8. The mold cleaning device according to claim 7, characterized in that: The gas circuit is provided with solenoid valves corresponding to the bottom lateral exhaust group and the middle lateral exhaust group, respectively, and the solenoid valves control the opening and closing of the bottom lateral exhaust group or the middle lateral exhaust group respectively.
9. A vertical forging die for an automobile half shaft, characterized in that: The mold cleaning device according to any one of claims 1 to 8 is arranged on the lower mold part, the first upper module, the second upper module and the third upper module are all provided with a forming cavity, the lower mold is provided with a placing cavity, each of the forming cavities can be respectively provided corresponding to the placing cavity, and the upper end of the bar placed in the placing cavity is provided corresponding to the forming cavity.
10. The automobile half-axle vertical forging die according to claim 9, characterized in that: The sliding assembly includes a slide plate, a slide table and a fixed plate. The upper template is fixedly arranged on the slide plate. The slide plate is slidably connected to the slide table. The slide plate can slide linearly along the slide table. The slide table is fixedly arranged on the fixed plate. The fixed plate is connected to the pressing block of the press.