Automatic material ejecting device of aluminum alloy trimming die frame

Abstract

The utility model relates to the technical field of die manufacturing and machining, in particular to an aluminum alloy trimming die frame automatic ejection device which comprises an upper die assembly, a lower die assembly, a punch arranged on the lower die assembly and a trimming blade arranged on the upper die assembly and matched with the punch. The lower die assembly is further provided with a pushing assembly used for pushing the trimming ring away from the punch. The problem that the production efficiency is affected due to the fact that the cleaning process of the trimming ring is tedious can be solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mold manufacturing and processing, and in particular to an automatic material ejecting device for an aluminum alloy trimming die frame. BACKGROUND

[0002] Under the background of increasing demand for precision mechanical parts and lightweight structural parts, aluminum alloys are widely used in the automobile, aerospace and other industries. After the stamping forming process of aluminum alloy products, residual material, i.e. "trimming ring", is generated. In the actual production process, the trimming ring generated in a single process needs to be removed from the die before the next stamping.

[0003] In the related art, the cleaning of the aluminum alloy trimming ring mainly includes manual cleaning and magnetic attraction cleaning. Manual cleaning requires workers to manually pull out the stuck trimming ring, and magnetic attraction cleaning is a magnet attraction slag cleaner that uses the principle of electromagnetic induction to work on non-alloy steel materials with strong magnetic properties.

[0004] According to the related art described above, manual cleaning has high labor intensity, low efficiency, is difficult to completely remove and is easy to damage the die assembly, and there is a safety hazard in specific situations. The application range of the magnet attraction slag cleaner is limited and only suitable for specific types of scrap recycling. At the same time, whether manual cleaning or magnetic attraction cleaning, the continuous operation of the production line is restricted due to the complicated operation, thereby affecting the production efficiency of large-scale industrialization. CONTENT OF THE INVENTION

[0005] In order to improve the problem that the cleaning process of the "trimming ring" is complicated and affects the production efficiency, the application provides an automatic material ejecting device for an aluminum alloy trimming die frame.

[0006] The automatic material ejecting device for an aluminum alloy trimming die frame provided by the application adopts the following technical scheme:

[0007] An automatic material ejecting device for an aluminum alloy trimming die frame, comprising an upper die assembly, a lower die assembly, a punch provided on the lower die assembly, and a trimming blade provided on the upper die assembly and matched with the punch.

[0008] The lower die assembly is further provided with a material pushing assembly for pushing the trimming ring away from the punch.

[0009] By adopting the technical scheme, the pushing assembly is arranged to automatically push the trimming ring away from the punch, manual pulling out of the trimming ring is not needed, the problem of low efficiency of manual cleaning is avoided, and the cleaning of the trimming ring is quickly completed. The manual cleaning mode is changed, the worker does not need to perform high-intensity physical labor, and the labor intensity is reduced. Meanwhile, the manual cleaning is easy to damage the die assembly, the pushing assembly automatically pushes the material, and the trimming ring is pushed away according to a reasonable mode, damage of the die assembly caused by improper manual cleaning is effectively avoided, and the service life of the die is prolonged. Compared with the magnetic attraction cleaning, the magnetic attraction cleaning is only suitable for specific types of scrap recovery, and the application range is limited, while the automatic pushing device is suitable for cleaning of the aluminum alloy trimming ring, is not limited by the magnetic property of the trimming ring material, and has a wider application range. The device is simple to operate, unlike the manual cleaning and the magnetic attraction cleaning, the continuous operation of the production line is not restricted by complicated operation, and the production efficiency of large-scale industrialization is improved.

[0010] Further, the pushing assembly comprises a pushing plate and a plurality of supporting cylinders arranged on the lower die assembly and used for cooperating with the pushing plate, and the pushing plate is provided with a pushing slot at a central position for the punch to pass through.

[0011] By adopting the technical scheme, the pushing slot makes the position relationship between the pushing plate and the punch more accurate, the pushing plate moves around the punch, can accurately act on the trimming ring on the punch, and ensures that the pushing action is accurate and correct. The plurality of supporting cylinders work cooperatively, can provide sufficient and uniform power for the pushing plate. This makes the pushing plate quickly and smoothly push the trimming ring away from the punch when pushing the trimming ring, and effectively improves the efficiency of cleaning the trimming ring.

[0012] Further, the supporting cylinders are circumferentially arranged on the lower die assembly, the cylinder bodies of the supporting cylinders are fixedly connected with the lower die assembly, and the piston rods of the supporting cylinders are used for pushing the pushing plate to the side close to the lower die assembly.

[0013] By adopting the technical scheme, the supporting cylinders are circumferentially arranged on the lower die assembly, so that the pushing plate is more uniformly stressed in each direction when being pushed. The cylinder bodies of the supporting cylinders are fixedly connected with the lower die assembly, so that the cylinders have a stable support basis during the working process, and the piston rods of each supporting cylinder directly push the pushing plate to the side close to the lower die assembly. This direct action mode can accurately control the movement of the pushing plate and the pushing force, the pushing force of each cylinder is accurately adjusted through the control system according to different aluminum alloy trimming ring materials, thicknesses and characteristics of the stamping die, precise pushing is realized, and the trimming ring is not cleaned completely or the die is damaged due to improper pushing force.

[0014] Further, the pushing plate is provided with a groove on the side close to the lower die assembly, and the groove is used for cooperating with the end of the piston rod of the supporting cylinder.

[0015] By adopting the technical scheme, the groove provides an accurate butt joint position for the end of the piston rod of the jacking cylinder, the piston rod can accurately extend into the groove, the two are not easy to deviate when connected, and it is ensured that the pushing plate can move smoothly along the designed direction when subjected to force.

[0016] Further, the lower die assembly comprises a lower die base and a punch mounting seat, the lower die base is provided with a lower arrangement groove on the top side for matching the punch mounting seat, the punch mounting seat is provided with a mounting groove on the top side for matching the punch, and the lower die base is provided with a plurality of jacking grooves corresponding to the jacking cylinders one by one and for embedding the cylinder bodies of the jacking cylinders at positions close to the edges, and the jacking grooves are arranged circumferentially around the lower arrangement groove.

[0017] By adopting the technical scheme, the lower die base is provided with the lower arrangement groove for mounting the punch mounting seat, and the jacking grooves are provided for mounting the jacking cylinders, so that the punch, the punch mounting seat and the jacking cylinders are integrated on the lower die base, and the space of the lower die base is fully utilized. The punch mounting seat is mounted on the lower die base through the lower arrangement groove, so that the punch mounting seat is convenient to maintain and replace, and when the punch mounting seat is worn, damaged or needs to be adjusted, the punch mounting seat can be taken out from the lower die base for corresponding treatment without affecting the normal use of the lower die base and other components. The jacking cylinders are embedded in the jacking grooves, so that the jacking cylinders are also convenient to maintain and replace, and when a jacking cylinder fails, the jacking cylinder can be taken out from the jacking groove for repair or replacement without the need to disassemble the entire lower die assembly on a large scale, so that the downtime of the equipment is reduced and the production efficiency is improved.

[0018] Further, the punch mounting seat abuts against a lower die wear plate between the outer side wall and the inner side wall of the lower die base.

[0019] By adopting the technical scheme, the punch mounting seat and the lower die base will produce relative displacement and friction due to vibration and stress during stamping in the use process. The lower die wear plate is interposed between the two, which can effectively isolate the direct contact between the outer side wall of the punch mounting seat and the inner side wall of the lower die base, avoid hard friction between metals, and reduce the wear degree of the punch mounting seat and the lower die base.

[0020] Further, the upper die assembly comprises an upper die base, a blade mounting seat and an ejection assembly for ejecting the trimming blade.

[0021] The upper die base is provided with a floating groove on the lower side for mounting the ejection assembly and an upper arrangement groove for mounting the blade mounting seat, the floating groove and the upper arrangement groove jointly form a stepped shape on the lower side of the upper die base, and the trimming blade is mounted on the side of the blade mounting seat away from the upper die base and used for mutual engagement of the punches.

[0022] By adopting the technical scheme, the trimming blade is installed on the blade mounting seat, and the blade mounting seat is accurately installed on the upper die seat through the upper arrangement groove, so that the position accuracy of the trimming blade is ensured. In the stamping process, the trimming blade can be accurately engaged with the punch to realize accurate trimming operation. The floating plate in the ejection assembly can displace to provide buffering in the stamping process. In the stamping moment, the impact force can affect the trimming blade and the whole die system. The buffering effect of the floating plate can effectively avoid damage of the trimming blade due to excessive instantaneous impact force, prolong the service life of the trimming blade, and reduce the influence of the impact force on other parts of the die, so as to ensure the stability of the whole die structure.

[0023] Further, the ejection assembly comprises an ejector and a floating plate, and the blade mounting seat is provided with a stepped through groove at the middle position for the ejector to pass through and be fixedly connected.

[0024] By adopting the technical scheme, the ejector passes through the stepped through groove at the middle position of the blade mounting seat and is fixedly connected, so that the position of the ejector and the trimming blade is accurately corresponding. When the trimming blade needs to be ejected, the ejector can directly and accurately act on the trimming blade to realize efficient and accurate ejection, so that the trimming blade is smoothly separated from the blade mounting seat. The stepped through groove provides stable support and guidance for the ejector. In the working process of the ejector, the stepped through groove can keep the stable movement track of the ejector.

[0025] Further, the upper die seat is provided with a plurality of fixing members on the upper side for connecting the floating plate, the floating plate is provided with a plurality of dispersedly arranged guide columns on the side close to the upper die seat, and the upper die seat is provided with a plurality of guide column holes for the guide columns to pass through and slide.

[0026] By adopting the technical scheme, the upper side of the upper die seat is provided with a plurality of fixing members for connecting the floating plate, so that the floating plate and the upper die seat are reliably connected. In the stamping process, the equipment can generate a large impact force and vibration, and stable connection can prevent the floating plate and the upper die seat from being separated or having a large relative displacement, so as to ensure the normal work of the ejection assembly. The floating plate is provided with a plurality of dispersedly arranged guide columns on the side close to the upper die seat, and the upper die seat is provided with corresponding guide column holes, so that the two cooperate to provide accurate guidance for the movement of the floating plate. In the process of ejecting the trimming blade, the floating plate needs to move stably along a specific direction, and the guide columns slide in the guide column holes to ensure the accurate movement track of the floating plate.

[0027] Further, the blade mounting seat is abutted between the outer side wall and the inner side wall of the upper die seat.

[0028] By adopting the technical scheme, relative movement and friction are generated between the blade mounting seat and the upper die seat during the stamping process. The upper die wear plate isolates the metal surfaces of the two, avoids direct metal-to-metal friction, and reduces the wear degree of the outer side wall of the blade mounting seat and the inner side wall of the upper die seat.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The pusher assembly cooperates with the jacking cylinder to automatically clean the trimming ring, avoiding the low efficiency of manual cleaning and the cumbersome operation of magnetic cleaning, so that the trimming ring cleaning is quickly completed, ensuring the continuous operation of the production line and improving the large-scale industrial production efficiency;

[0031] 2. The pusher slot of the pusher plate, the circumferential arrangement of the jacking cylinder, and the cooperation of the piston rod and the groove ensure accurate pusher action, making the trimming ring cleaning more accurate. The trimming blade is accurately installed through the blade mounting seat and the upper arrangement slot. The ejector is accurately corresponding to the trimming blade through the stepped slot. At the same time, the guide column and the guide hole guide the movement of the floating plate, ensuring that the trimming blade and the punch accurately engage during the stamping process, realizing accurate trimming operation, improving the stamping precision and equipment operation stability;

[0032] 3. The modular design of each component, such as the installation of the punch mounting seat through the lower arrangement slot and the embedding of the jacking cylinder into the jacking groove, facilitates the maintenance and replacement of components, reduces equipment downtime, and further improves production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of an automatic ejection device for an aluminum alloy trimming die frame according to an embodiment of the present application.

[0034] Figure 2 is a schematic diagram of the cross-sectional structure of an automatic ejection device for an aluminum alloy trimming die frame according to an embodiment of the present application.

[0035] Figure 3 is an exploded schematic diagram of the structure of a lower die assembly and a punch in an embodiment of the present application.

[0036] Figure 4 is an exploded schematic diagram of the structure of a pusher assembly in an embodiment of the present application Figure 1 .

[0037] Figure 5 is an exploded schematic diagram of the structure of a pusher assembly in an embodiment of the present application Figure 2 .

[0038] Figure 6 is an exploded schematic diagram of the structure of an upper die assembly and a trimming blade in an embodiment of the present application Figure 1 .

[0039] Figure 7is a structure explosion diagram of the upper die assembly and the trimming blade of the embodiment of the present application Figure 2 .

[0040] Marked as: 1, upper die assembly; 11, upper die seat; 111, floating groove; 112, upper arrangement groove; 113, fixing piece; 114, guide column hole; 12, blade mounting seat; 121, upper die wear plate; 13, ejection assembly; 131, ejector; 132, floating plate; 133, guide column; 2, lower die assembly; 21, lower die seat; 211, lower arrangement groove; 212, jacking groove; 22, punch mounting seat; 221, mounting groove; 222, lower die wear plate; 3, punch; 4, trimming blade; 5, pushing assembly; 51, pushing plate; 511, pushing through slot; 512, groove; 52, jacking cylinder. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. Figures 1-7

[0042] The embodiment of the present application discloses an automatic ejection device for an aluminum alloy trimming die frame. Referring to Figure 1 and Figure 2 , the automatic ejection device for the aluminum alloy trimming die frame comprises an upper die assembly 1, a lower die assembly 2, a punch 3, a trimming blade 4 and a pushing assembly 5. The punch 3 is arranged on the lower die assembly 2, the trimming blade 4 is arranged on the upper die assembly 1 and cooperates with the punch 3, thereby realizing the stamping of the workpiece. The pushing assembly 5 is arranged on the lower die assembly 2 and is used for pushing the trimming ring away from the punch 3.

[0043] Referring to Figure 3 and Figure 4 , the lower die assembly 2 comprises a lower die seat 21 and a punch 3 mounting seat 22, the lower die seat 21 is provided with a lower arrangement groove 211 on the top side, which cooperates with the punch 3 mounting seat 22, and the punch 3 mounting seat 22 is provided with a mounting groove 221 on the top side, which cooperates with the punch 3. The lower die wear plate 222 is abutted between the outer side wall of the punch 3 mounting seat 22 and the inner side wall of the lower die seat 21.

[0044] The pushing assembly 5 comprises a pushing plate 51 and a jacking cylinder 52, the pushing plate 51 is provided with a pushing through slot 511 in the center position, which is used for the punch 3 to pass through, and in combination Figure 5 , the pushing plate 51 is provided with a groove 512 on the side close to the lower die assembly 2, which is used for cooperating with the end of the piston rod of the jacking cylinder 52. The number of the jacking cylinder 52 in the embodiment is preferably four, each jacking cylinder 52 is arranged at the edge position of the lower die seat 21 and is dispersedly arranged at each corner position. The lower die seat 21 is provided with a plurality of jacking grooves 212, which correspond to each jacking cylinder 52 one by one and are used for embedding the cylinder body of the jacking cylinder 52, and each jacking groove 212 is arranged circumferentially around the lower arrangement groove 211.​

[0045] Referring to Figure 6 and Figure 7 The upper die assembly 1 comprises an upper die seat 11, a blade mounting seat 12, and an ejection assembly 13 for ejecting the trimming blade 4. The upper die seat 11 is provided with a floating groove 111 on the lower side for mounting the ejection assembly 13 and an upper arrangement groove 112 for mounting the blade mounting seat 12, and the floating groove 111 and the upper arrangement groove 112 jointly form a stepped shape on the lower side of the upper die seat 11. The blade mounting seat 12 is abutted with an upper die wear plate 121 between the outer side wall and the inner side wall of the upper die seat 11. The trimming blade 4 is mounted on the side of the blade mounting seat 12 away from the upper die seat 11 and is used for mutual engagement of the punch 3.

[0046] The ejection assembly 13 comprises an ejector 131 and a floating plate 132, and the blade mounting seat 12 is provided with a stepped through groove at the middle position for the ejector 131 to pass through and be fixedly connected. The upper die seat 11 is provided with a plurality of fixing members 113 on the upper side for connecting the floating plate 132, and the floating plate 132 is provided with a plurality of dispersedly arranged guide columns 133 on the side close to the upper die seat 11, and the upper die seat 11 is provided with a plurality of guide column holes 114 for the guide columns 133 to pass through and slide.

[0047] The implementation principle of the automatic ejection device of the aluminum alloy trimming die frame in the embodiment of the application is that the upper die assembly 1 and the lower die assembly 2 are matched with each other, the trimming blade 4 and the punch 3 are engaged with each other, and the workpiece is stamped. The punch 3 in the lower die assembly 2 is installed in the installation groove 221 of the punch 3 mounting seat 22, the punch 3 mounting seat 22 is installed on the lower die seat 21 through the lower arrangement groove 211, and the lower die wear plate 222 reduces the friction and wear between the two. The trimming blade 4 in the upper die assembly 1 is installed on the side of the blade mounting seat 12 away from the upper die seat 11, the blade mounting seat 12 is installed on the lower side of the upper die seat 11 through the upper arrangement groove 112, and the upper die wear plate 121 also reduces the friction and wear between the two.

[0048] After stamping is completed, the supporting cylinders 52 of the pushing assembly 5 are embedded in the supporting grooves 212 of the lower die seat 21 and are dispersedly arranged at each corner position in the circumferential direction. When the trimming ring needs to be cleaned, the piston rod of the supporting cylinder 52 is extended, the end portion thereof is accurately matched with the groove 512 on the pushing plate 51, and the pushing plate 51 is pushed. The pushing plate 51 can accurately move around the punch 3 because the pushing plate through groove 511 in the center of the pushing plate 51 is used for the punch 3 to pass through. The plurality of supporting cylinders 52 work cooperatively to provide uniform and sufficient power for the pushing plate 51, so that the pushing plate 51 can quickly and stably push the trimming ring away from the punch 3, the automatic cleaning of the trimming ring is completed, and the tediousness and inefficiency of manual cleaning are avoided.

[0049] When the trimming blade 4 needs to be replaced or maintained, the ejector 131 passes through the stepped through slot in the middle of the blade mounting seat 12 and is clamped and fixed, ensuring accurate correspondence with the position of the trimming blade 4. The trimming blade 4 is ejected from the blade mounting seat 12 by the action of the ejector 131.

[0050] The floating plate 132 in the ejector assembly 13 is connected to the upper die seat 11 by the fixing member 113, and the guide column 133 on the floating plate 132 cooperates with the guide column hole 114 of the upper die seat 11 to provide accurate guidance for the movement of the floating plate 132. In the process of ejecting the trimming blade 4, the floating plate 132 can be displaced to provide a buffer, reduce the impact on the trimming blade 4 and related components at the moment of ejection, and at the same time ensure the stability of the work of the ejector assembly 13, facilitating the installation and replacement of the trimming blade 4.

[0051] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic ejection device for an aluminum alloy trimming die frame, characterized in that: It includes an upper die assembly (1), a lower die assembly (2), a punch (3) disposed on the lower die assembly (2), and a cutting edge (4) disposed on the upper die assembly (1) and cooperating with the punch (3); The lower die assembly (2) is further provided with a pusher assembly (5) for pushing the cutting ring away from the punch (3).

2. The automatic ejection device for an aluminum alloy trimming die frame according to claim 1, characterized in that: The pusher assembly (5) includes a pusher plate (51) and a plurality of top support cylinders (52) arranged on the lower die assembly (2) and used to cooperate with the pusher plate (51). The pusher plate (51) has a pusher through groove (511) at the center position for the punch (3) to pass through.

3. The automatic ejection device for an aluminum alloy trimming die frame according to claim 2, characterized in that: Each of the top support cylinders (52) is arranged circumferentially on the lower mold assembly (2). The cylinder body of each of the top support cylinders (52) is fixedly connected to the lower mold assembly (2). The piston rod of the top support cylinder (52) is used to push the pusher plate (51) closer to one side of the lower mold assembly (2).

4. The automatic ejection device for an aluminum alloy trimming die frame according to claim 3, characterized in that: The pusher plate (51) has a groove (512) on the side near the lower mold assembly (2) for cooperating with the piston rod end of the top support cylinder (52).

5. The automatic ejection device for an aluminum alloy trimming die frame according to claim 2, characterized in that: The lower die assembly (2) includes a lower die base (21) and a punch (3) mounting base (22). The lower die base (21) has a lower arrangement groove (211) on its top side that cooperates with the punch (3) mounting base (22). The punch (3) mounting base (22) has a mounting groove (221) on its top side that cooperates with the punch (3). The lower die base (21) has a plurality of top support grooves (212) near its edge that correspond one-to-one with each of the top support cylinders (52) and allow the cylinder bodies of the top support cylinders (52) to be embedded. Each top support groove (212) is arranged circumferentially around the lower arrangement groove (211).

6. The automatic ejection device for an aluminum alloy trimming die frame according to claim 5, characterized in that: The punch (3) mounting base (22) abuts against the lower die wear plate (222) between the outer side wall and the inner side wall of the lower die base (21).

7. The automatic ejection device for an aluminum alloy trimming die frame according to claim 1, characterized in that: The upper mold assembly (1) includes an upper mold base (11), a blade mounting base (12), and an ejection assembly (13) for ejecting the cutting blade (4); The upper die base (11) has a floating groove (111) for mounting the ejector assembly (13) and an upper arrangement groove (112) for mounting the blade mounting seat (12) on its lower side. The floating groove (111) and the upper arrangement groove (112) together form a stepped shape on the lower side of the upper die base (11). The cutting blade (4) is installed on the side of the blade mounting seat (12) away from the upper die base (11) and is used for the punches (3) to mesh with each other.

8. The automatic ejection device for an aluminum alloy trimming die frame according to claim 7, characterized in that: The ejector assembly (13) includes an ejector (131) and a floating plate (132). The blade mounting base (12) has a stepped through groove at the middle position for the ejector (131) to pass through and be locked in place.

9. The automatic ejection device for an aluminum alloy trimming die frame according to claim 8, characterized in that: The upper mold base (11) is provided with a plurality of fasteners (113) for connecting the floating plate (132) through its upper side. The floating plate (132) is provided with a plurality of guide posts (133) arranged in a dispersed manner on the side near the upper mold base (11). The upper mold base (11) is provided with a plurality of guide post holes (114) for each of the guide posts (133) to pass through and slide.

10. An automatic ejector device for an aluminum alloy trimming die frame according to claim 7, characterized in that: The blade mounting seat (12) abuts against the upper mold wear plate (121) between the outer side wall and the inner side wall of the upper mold seat (11).

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