Sintering anti-deformation device for special-shaped structural part
By combining the upper and lower dies and using the middle rod and punch, the deformation problem of irregular structural parts during the sintering process was solved, achieving high-precision and high-efficiency processing results and reducing costs.
Patent Information
- Application Number
- CN202422663844.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Special-shaped structural parts are prone to thermal stress and uneven material shrinkage during the sintering process, resulting in deformation and making it difficult to ensure the geometric accuracy of complex shapes.
The design employs a combination of upper and lower dies, including first and second processing sections and an anti-deformation processing section. Combined with the use of a center rod and a punch, it ensures uniform distribution of powder material and provides additional support points. The groove group is set to distribute heat evenly and reduce stress concentration.
It effectively reduces deformation during the sintering process, improves the consistency and geometric accuracy of processed workpieces, reduces material and processing costs, and increases yield and production efficiency.
Smart Images
Figure CN223470509U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sintering auxiliary device technical field relates to a sintering anti -deformation device of special-shaped structural member. BACKGROUND
[0002] Sintering refers to the transformation of powder material into a dense body, which is a traditional process. It is mainly used for the production of ceramics, powder metallurgy, refractory materials, ultra-high temperature materials, etc. However, sintering can cause the volume shrinkage of the product, leading to the distortion of the product and causing great errors in the key dimensions of the product.
[0003] At the same time, the special-shaped structural member is more prone to thermal stress and uneven material shrinkage during sintering, resulting in deformation and difficulty in ensuring the geometric precision of sintering of complex shapes.
[0004] Therefore, there is an urgent need in the field for a sintering anti-deformation device for special-shaped structural members to solve the above technical problems. SUMMARY
[0005] Therefore, the utility model discloses a sintering anti-deformation device for special-shaped structural members to solve the above problems, which comprises: an upper die and a lower die arranged opposite to the upper die, the upper die is provided with a first processing part on the side facing the lower die, the first processing part comprises a first workpiece processing part and a first anti-deformation processing part, the lower die is provided with a second processing part corresponding to the first processing part, the second processing part comprises a second workpiece processing part and a second anti-deformation processing part, the second workpiece processing part and the first workpiece processing part are arranged correspondingly, and the second anti-deformation processing part and the first anti-deformation processing part are arranged correspondingly.
[0006] As a further improvement of the utility model, the first workpiece processing part is provided with a first groove group at the bottom, and the first groove group comprises a first longitudinal groove and a first transverse groove connected with the first longitudinal groove.
[0007] As a further improvement of the utility model, the second workpiece processing part is provided with a second groove group at the bottom, and the second groove group comprises a second longitudinal groove and a second transverse groove connected with the second longitudinal groove, the second longitudinal groove is arranged correspondingly with the first longitudinal groove, and the second transverse groove is arranged correspondingly with the first transverse groove.
[0008] As a further improvement of the utility model, the bottom of the first groove group and the bottom of the first anti-deformation processing part are in the same plane, and the bottom of the second groove group and the bottom of the second anti-deformation processing part are in the same plane.
[0009] As a further improvement of the utility model, the sintering anti-deformation device of the special-shaped structural member further comprises a middle rod, the middle rod penetrates the upper die and the lower die.
[0010] As a further improvement of the utility model, the upper die is provided with a first middle hole for accommodating the middle rod, the first middle hole is arranged inside the first workpiece machining part and the first anti-deformation machining part, the lower die is provided with a second middle hole for accommodating the middle rod, and the second middle hole is arranged inside the second workpiece machining part and the second anti-deformation machining part.
[0011] As a further improvement of the utility model, the bottom of the middle rod is provided with a middle rod fixing assembly, the middle rod fixing assembly comprises a middle rod fixing plate and a middle rod fixing seat which are connected to each other, and the middle rod fixing seat is provided with a fixing groove for accommodating the middle rod.
[0012] As a further improvement of the utility model, the sintering anti-deformation device of the special-shaped structural member further comprises an upper punch and a lower punch, the upper punch is connected to the upper die, the bottom surface of the upper punch abuts against the middle rod, and the lower punch is connected to the lower die.
[0013] As a further improvement of the utility model, the lower die is provided with a lower die fixing plate.
[0014] As a further improvement of the utility model, the lower punch is connected with a lower punch fixing plate, and the lower punch fixing plate is sleeved on the side of the lower die.
[0015] The technical effect of the utility model is that, compared with the prior art, the sintering anti-deformation device of the special-shaped structural member provided by the utility model effectively reduces deformation in the sintering process and effectively improves the consistency of the machined workpiece, by arranging the first machining part on the side of the upper die facing the lower die, arranging the second machining part on the lower die corresponding to the first machining part, and arranging the first machining part opposite to the second machining part after the upper die and the lower die are closed. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute a part of the embodiments of the present application, rather than all the embodiments. For those skilled in the art, other drawings obtained according to these drawings without creative labor are within the scope of the present application.
[0017] Figure 1 is a perspective view of a sintering anti-deformation device for a special-shaped structural member provided by the embodiment of the present application;
[0018] Figure 2 is an exploded view of a sintering anti-deformation device for a special-shaped structural member provided by the embodiment of the present application;
[0019] Figure 3 is a perspective view of a lower die provided by the embodiment of the present application.
[0020] wherein, 10 is an upper die, 11 is a first processing part, 111 is a first workpiece processing part, 112 is a first anti-deformation processing part, 113 is a first groove group, 1131 is a first longitudinal groove, 1132 is a first transverse groove, and 114 is a first middle hole;
[0021] 20 is a lower die, 21 is a second processing part, 211 is a second workpiece processing part, 212 is a second anti-deformation processing part, 213 is a second groove group, 2131 is a second longitudinal groove, 2132 is a second transverse groove, 214 is a second middle hole, and 215 is a lower die fixing plate;
[0022] 31 is a middle rod, 32 is a middle rod fixing assembly, 321 is a middle rod fixing plate, 322 is a middle rod fixing seat, and 3221 is a fixing groove;
[0023] 41 is an upper punch, 42 is a lower punch, and 421 is a lower punch fixing plate. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the present application more clearly, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.
[0025] To make the description of the present disclosure more detailed and complete, the following describes the embodiments of the present application in detail. However, this is not the only form of implementation or use of the embodiments of the present application. The embodiments include the features of the specific embodiments and the method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0026] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0027] It should be understood that the terms "first", "second", etc. in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.
[0028] In the description of the present application, the terms "front", "back", "top", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0029] Please refer to Figures 1-3 An embodiment of the present application provides a sintering anti-deformation device for a special-shaped structural member, which is used to solve the problem of uneven thermal stress and material shrinkage during sintering of the existing special-shaped structural member, deformation, and difficulty in ensuring the geometric precision of sintering of complex shapes.
[0030] Specifically, please refer to Figure 1 A perspective view of a sintering anti-deformation device for a special-shaped structural member provided by the embodiments of the present application, Figure 2The utility model provides an explosion map of the sintering anti -deformation device of special structure spare of embodiment provides, the utility model provides a sintering anti -deformation device of special structure spare, include: upper die 10 and with the lower die 20 of opposite arrangement of upper die 10, the first processing part 11 is equipped with to the side of the lower die 20 of upper die 10, the second processing part 21 is equipped with to the first processing part 11 of lower die 20, through setting up the first processing part 11 is equipped with to the side of the lower die 20 of upper die 10, the second processing part 21 is equipped with to the first processing part 11 of lower die 20, after the upper die 10 with the lower die 20 close mould, the first processing part 11 with the second processing part 21 opposite, effectively reduce the deformation in the sintering process, effectively improved the consistency of processing workpiece.
[0031] Specifically, the first processing part 11 includes a first workpiece processing part 111 and a first anti-deformation processing part 112, the second processing part 21 includes a second workpiece processing part 211 and a second anti-deformation processing part 212, the second workpiece processing part 211 and the first workpiece processing part 111 are correspondingly arranged, and the second anti-deformation processing part 212 and the first anti-deformation processing part 112 are correspondingly arranged. By setting the first processing part 11 includes a first workpiece processing part 111 and a first anti-deformation processing part 112, the second processing part 21 includes a second workpiece processing part 211 and a second anti-deformation processing part 212, the second workpiece processing part 211 and the first workpiece processing part 111 are correspondingly arranged, it is ensured that the special-shaped structural part powder material is uniformly distributed in the pressing process, and a high-precision geometric shape is formed. By setting the first anti-deformation processing part 112 and the second anti-deformation processing part 212 correspond to each other, the first anti-deformation processing part 112 and the second anti-deformation processing part 212 provide additional support points for workpiece processing of the second workpiece processing part 211 and the first workpiece processing part 111, especially in the edge stress concentration area, effectively reducing the local deformation of the workpiece, and the anti-deformation structure formed between the first anti-deformation processing part 112 and the second anti-deformation processing part 212 after processing is very small compared with the connecting surface of the special-shaped structural part formed between the second workpiece processing part 211 and the first workpiece processing part 111, so that the special-shaped structural part product can be obtained only by CNC processing, which ensures the geometric precision of the sintering of the special-shaped structural part, effectively reduces the processing allowance, and reduces the material and processing cost.
[0032] As a further improvement of the utility model, please see Figure 3, the first workpiece processing part 111 bottom is equipped with first groove group 113, first groove group 113 includes the first longitudinal groove 1131 and the first transverse groove 1132 connected first longitudinal groove 1131 being arranged at intervals.The first workpiece processing part 111 bottom is equipped with first groove group 113, and the first groove group 113 can provide more free space during sintering, so that the workpiece can have certain expansion allowance when sintering is heated and expanded, thereby reducing the accumulation of internal stress of the workpiece, reducing the formation of cracks on the surface of the workpiece due to stress concentration, improving the sintering yield of the special-shaped structural member, and the first groove group 113 includes the first longitudinal groove 1131 and the first transverse groove 1132 connected first longitudinal groove 1131 being arranged at intervals, which realizes the uniform distribution of groove structure on the surface of the special-shaped structural member, helps heat to be more evenly distributed on the whole workpiece, reduces local overheating or temperature gradient, thereby reducing deformation caused by uneven heating.In practical application, by adjusting the layout and size of the groove, different shapes and sizes of workpieces can be adapted, and the versatility and flexibility of the special-shaped structure sintering anti-deformation device are improved.
[0033] As a further improvement of the utility model, the second workpiece processing part 211 bottom is equipped with second groove group 213, second groove group 213 includes the second longitudinal groove 2131 and the second transverse groove 2132 connected second longitudinal groove 2131 being arranged at intervals, the second longitudinal groove 2131 is correspondingly arranged with the first longitudinal groove 1131, and the second transverse groove 2132 is correspondingly arranged with the first transverse groove 1132.By being equipped with second groove group 213 at the second workpiece processing part 211 bottom, the same groove structure is arranged at the corresponding position of the upper die 10 and the lower die 20, so that the workpiece can be uniformly supported during sintering, and deformation caused by insufficient unilateral support is reduced.The symmetrical groove design helps the uniform distribution of internal stress of the workpiece, thereby reducing local stress concentration and improving the overall stability of the workpiece.The second longitudinal groove 2131 is correspondingly arranged with the first longitudinal groove 1131, and the second transverse groove 2132 is correspondingly arranged with the first transverse groove 1132, which further enhances the anti-deformation effect of the special-shaped structural member sintering anti-deformation device, realizes the bidirectional constraint of the special-shaped structural member, and prevents it from being twisted or deformed during sintering.
[0034] As a further improvement of the utility model, the bottom of the first groove group 113 and the bottom of the first deformation prevention processing part 112 are on the same plane, and the bottom of the second groove group 213 and the bottom of the second deformation prevention processing part 212 are on the same plane. By arranging the bottom of the first groove group 113 and the bottom of the first deformation prevention processing part 112 and the bottom of the second groove group 213 and the bottom of the second deformation prevention processing part 212 on the same plane, the workpiece can be ensured to be subjected to uniform pressure during sintering, local stress concentration caused by inconsistent height is reduced, the design on the same plane makes the installation and adjustment of the mold more convenient, simplifies the production process, and additional time is not required to adjust the height and flatness of the mold, and the production efficiency is improved.
[0035] As a further improvement of the utility model, the sintering deformation prevention device of the special-shaped structural member further comprises a middle rod 31, and the middle rod 31 penetrates the upper mold 10 and the lower mold 20. By arranging that the sintering deformation prevention device of the special-shaped structural member further comprises a middle rod 31, and the middle rod 31 penetrates the upper mold 10 and the lower mold 20, the size and number of the hollow structure of the special-shaped structural member can be controlled by adjusting the size and number of the middle rod 31. Meanwhile, the middle rod 31 penetrates the upper mold 10 and the lower mold 20, a center support point is provided, the stability and perpendicularity of the workpiece during the entire sintering process are helped to be maintained, the offset or inclination of the workpiece under high temperature can be effectively reduced through the fixing effect of the middle rod 31, the position of the workpiece in the mold is ensured to be more accurate, the middle rod 31 can balance the pressure between the upper mold 10 and the lower mold 20, the pressure received by the workpiece in each direction is ensured to be more uniform, local stress concentration is reduced, deformation of the workpiece during sintering is avoided, and the quality of the finished product is improved.
[0036] As a further improvement of the utility model, the upper mold 10 is provided with a first middle hole 114 for accommodating the middle rod 31, the first middle hole 114 is arranged inside the first workpiece processing part 111 and the first deformation prevention processing part 112, and the lower mold 20 is provided with a second middle hole 214 for accommodating the middle rod 31, and the second middle hole 214 is arranged inside the second workpiece processing part 211 and the second deformation prevention processing part 212. By arranging that the first middle hole 114 is arranged inside the first workpiece processing part 111 and the first deformation prevention processing part 112 and the second middle hole 214 is arranged inside the second workpiece processing part 211 and the second deformation prevention processing part 212, it is ensured that the middle rod 31 can accurately penetrate the workpiece processing part and the deformation prevention processing part, the hollow structure of the special-shaped structural member is avoided from being deformed, the finished product quality of the special-shaped structural member can be significantly improved through accurate alignment and uniform stress of the middle rod 31, the production process is simplified, and the production cost is reduced.
[0037] As a further improvement of the utility model, the middle rod 31 bottom is equipped with middle rod fixing assembly 32, middle rod fixing assembly 32 includes mutually connected middle rod fixing plate 321 and middle rod fixing seat 322, and the middle rod fixing seat 322 is equipped with the fixed groove 3221 for containing the middle rod 31. By setting middle rod fixing assembly 32 in the middle rod 31 bottom, the stability of the middle rod 31 is enhanced, and middle rod fixing assembly 32 provides stable fixing point for the middle rod 31 by middle rod fixing plate 321 and middle rod fixing seat 322, to ensure that the middle rod 31 does not displace or tilt during sintering process, and middle rod fixing assembly 32 can also absorb part of vibration, further improve the overall stability of the sintering anti-deformation device of the special-shaped structural member, and simultaneously middle rod fixing assembly 32 helps to uniformly distribute the pressure of the middle rod 31 on the fixing plate and fixing seat, to keep the uniform stress of workpiece during the whole sintering process, reduce local stress concentration and improve the quality of finished product.
[0038] As a further improvement of the utility model, the sintering anti-deformation device of the special-shaped structural member further includes upper punch 41 and lower punch 42, the upper punch 41 is connected with the upper die 10, the bottom surface of the upper punch 41 abuts against the middle rod 31, and the lower punch 42 is connected with the lower die 20. By setting the upper punch 41 connected with the upper die 10 and the lower punch 42 connected with the lower die 20, the pressure is uniformly transmitted to the workpiece by the upper punch 41 and the lower punch 42, to ensure that the whole workpiece is uniformly stressed, and uniform pressure distribution helps to reduce local stress concentration, thereby reducing the deformation of the workpiece, and the cooperation of the upper punch 41 and the lower punch 42 can effectively reduce the deviation or tilt of the workpiece under high temperature, ensure that the position of the workpiece in the die is more accurate, facilitate the installation and adjustment of the anti-deformation device of the special-shaped structural member, and simplify the production process of the special-shaped structural member.
[0039] As a further improvement of the utility model, the lower die 20 is sleeved with lower die fixing plate 215, the lower die fixing plate 215 provides additional support and fixing point for the lower die 20, to ensure that the lower die 20 does not displace or tilt during sintering process, the lower die fixing plate 215 partially protrudes from the lower die 20, to reserve space for workpiece processing between the upper die 10 and the lower die 20, avoid the overflow of raw materials during workpiece processing, the lower die fixing plate 215 can absorb part of vibration, improve the stability of the whole lower die 20, and also help to uniformly distribute the pressure of the lower die 20 on the lower die fixing plate 215, to ensure the uniform stress of the workpiece during sintering process, reduce local stress concentration of the lower die 20 and improve the quality of the finished product of the special-shaped structural member.
[0040] As further improvement of the utility model, the lower punch 42 is connected with a lower punch fixing plate 421, the lower punch fixing plate 421 is sleeved on the periphery of the lower die 20. By setting the lower punch fixing plate 421, the stability of the movement of the lower punch 42 is ensured, the pressure of the lower punch 42 is evenly distributed on the fixing plate, so that the uniform stress of the workpiece is maintained during the whole sintering process, by sleeving the lower punch fixing plate 421 on the periphery of the lower die 20 and connecting with the lower punch 42, a plane support is provided, the stability of fixation is increased, and the lower die 20 is tightly connected, the position during the sintering process is ensured not to change, and the reliability of the sintering anti-deformation device for the special-shaped structural member is improved.
[0041] The technical features of the above embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that the combinations are within the scope of the present application.
[0042] The above embodiments only express the preferred implementation of the utility model, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A sintering anti-deformation device for a profiled structural element, characterized in that, The device comprises: An upper die and a lower die arranged opposite to the upper die, the upper die is provided with a first processing part on the side facing the lower die, the first processing part comprises a first workpiece processing part and a first deformation prevention processing part, the lower die is provided with a second processing part corresponding to the first processing part, the second processing part comprises a second workpiece processing part and a second deformation prevention processing part, the second workpiece processing part and the first workpiece processing part are arranged correspondingly, and the second deformation prevention processing part and the first deformation prevention processing part are arranged correspondingly.
2. The sintering anti-deformation device for profiled structural members according to claim 1, characterized in that, The bottom of the first workpiece processing part is provided with a first groove group, the first groove group comprises a first longitudinal groove arranged at intervals and a first transverse groove connected with the first longitudinal groove.
3. The sintering anti-deformation device of the profiled structural element according to claim 2, characterized in that, The bottom of the second workpiece processing part is provided with a second groove group, the second groove group comprises a second longitudinal groove arranged at intervals and a second transverse groove connected with the second longitudinal groove, the second longitudinal groove is arranged correspondingly with the first longitudinal groove, and the second transverse groove is arranged correspondingly with the first transverse groove.
4. The sintering anti-deformation device of profiled structural elements according to claim 3, characterized in that, The bottom of the first groove group and the bottom of the first deformation prevention processing part are in the same plane, and the bottom of the second groove group and the bottom of the second deformation prevention processing part are in the same plane.
5. The sintering anti-deformation device for profiled structural members according to claim 1, characterized in that, The sintering deformation prevention device of the profiled structural member further comprises a middle rod, and the middle rod penetrates the upper die and the lower die.
6. The sintering anti-deformation device of profiled structural elements according to claim 5, characterized in that, The upper die is provided with a first middle hole for accommodating the middle rod, the first middle hole is arranged inside the first workpiece processing part and the first deformation prevention processing part, the lower die is provided with a second middle hole for accommodating the middle rod, and the second middle hole is arranged inside the second workpiece processing part and the second deformation prevention processing part.
7. The sintering anti-deformation device of profiled structural elements according to claim 5, characterized in that, The bottom of the middle rod is provided with a middle rod fixing assembly, the middle rod fixing assembly comprises a middle rod fixing plate and a middle rod fixing seat connected with each other, and the middle rod fixing seat is provided with a fixing groove for accommodating the middle rod.
8. The sintering anti-deformation device of the profiled structural element according to claim 5, characterized in that, The sintering deformation prevention device of the profiled structural member further comprises an upper punch and a lower punch, the upper punch is connected with the upper die, and the bottom surface of the upper punch abuts against the middle rod, and the lower punch is connected with the lower die.
9. The sintering anti-deformation device of profiled structural elements according to claim 1, characterized in that, The lower die is provided with a lower die fixing plate.
10. The sintering anti-deformation device of profiled structural elements according to claim 8, characterized in that, The lower punch is connected with a lower punch fixing plate, and the lower punch fixing plate is sleeved on the side of the lower die.