Tempering clamp for large-size sheet metal part
By designing a tempering fixture including base, pressing plate, wedge, positioning column and handle, the problem of deformation of large-sized sheet metal parts after quenching is solved, the stable fixation and efficient processing of parts are achieved, and the product quality is improved Processing efficiency.
Patent Information
- Application Number
- CN202410987171.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2024-12-10
AI Technical Summary
Large-sized sheet metal parts are prone to deformation after quenching, affecting the flatness and mechanical properties of the parts. Traditional tempering fixtures are difficult to effectively control deformation, which increases the process and cost.
A tempering fixture including a base, a press plate, a wedge member, a positioning column and a handle is designed. By cooperating with the positioning column and a wedge member, the molding fixation of the sheet metal parts is realized, the fitting position between the press plate and the base is adjusted, and friction is increased. Force to prevent parts from being offset and slipping.
Effectively reduce the deformation of parts, improve product quality and processing efficiency, and is suitable for large-scale parts processing. It has a simple structure, easy operation, low cost, and is suitable for promotion and use.
Smart Images
Figure CN119101782A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of heat treatment of aviation materials, and in particular to a tempering fixture for large-size sheet metal parts. Background Art
[0002] With the development of science and technology in the field of aviation and aerospace, the heat treatment process of ferrous metals is also constantly improving. However, the problem of deformation after heat treatment of ferrous metals has always been accompanied by it, especially for thin-walled sheet metal parts. Because the outer contour size of the thin-walled sheet metal parts is greater than 1000mm, and its thickness δ≤1~2mm. After quenching, there are higher requirements for the deformation, and the flatness cannot exceed 0.5mm. In order to meet the above quality requirements, it is difficult to control during the quenching process. If the quenching is performed after superposition, the hardenability of the material will not meet the requirements, and it is easy to produce hardness soft spots. In addition, the parts must be tempered after quenching. The hardness after tempering can reach more than 35HRC. During the tempering process, the internal structure of the parts will change again, generating organizational stress, and the parts will undergo secondary deformation, and the flatness will be more difficult to guarantee. This will seriously affect the overall mechanical properties and process performance of the parts.
[0003] For the tempering treatment of such sheet metal parts, if the traditional method of neatly stacking is used for tempering in the furnace, it is easy to produce warping deformation, and the flatness of the parts is even more difficult to ensure. If other methods such as thermal calibration are used for correction after tempering, it will not only increase the process but also waste costs. After searching, the patent document with the authorization announcement number CN208964981U discloses a tempering fixture for large thin-walled parts, and the patent document with the application publication number CN115323148A discloses a tempering fixture and heat treatment method for large-sized angle parts. From the contents disclosed in the two retrieved patent documents, a tempering fixture that meets the requirements of large-sized use is provided from different angles. Therefore, in order to avoid large deformation of such large-sized sheet metal parts after quenching, affecting the subsequent machining process of the parts, and then affecting the product quality of the entire parts, a tempering fixture suitable for such parts is designed for heat treatment. Summary of the invention
[0004] The technical problem to be solved by the present invention is to address the problems existing in the background technology. In order to avoid large deformation of such large-sized sheet metal parts after quenching, which affects the subsequent machining process of the parts and further affects the product quality of the entire parts, a tempering fixture suitable for such sheet metal parts is designed. The tempering fixture is used to clamp and fix such sheet metal parts for heat treatment to avoid large deformation. This can not only improve product quality, but also meet the processing needs of large quantities of parts, thereby improving their processing efficiency. Specifically, it is a tempering fixture for large-sized sheet metal parts.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a tempering fixture for large-size sheet metal parts, including a base, a pressure plate, a wedge-shaped piece, a positioning column and a handle, the base and the positioning column are connected to form an integral structure by welding, the pressure plate and the base are positioned by the positioning column, and the positioning column is used to make it fit to the base, which is used to adjust the fitting position between the base and the pressure plate; a center hole corresponding to the wedge-shaped piece is provided in the positioning column, the wedge-shaped piece is detachably arranged on the positioning column through the center hole, and is in abutment contact with the pressure strip, the wedge-shaped piece is used to make the pressure plate and the base fit more closely together, so as to play a molding role on the sheet metal part to be processed; the handle is arranged on the front side of the pressure plate.
[0006] Furthermore, a tempering fixture for large-size sheet metal parts described in the present invention is adopted, wherein a plurality of positioning columns are provided, and the plurality of positioning columns are evenly fixed on the base along the length direction of the base; the distance between the pressure plate and the base is adjusted according to the thickness of the sheet metal part to be processed; and the fastening method between the pressure plate and the base is to generate extrusion by inserting a wedge-shaped piece between the positioning columns, and the friction force is increased by extrusion to fix the pressure plate, thereby realizing the molding fixation of the sheet metal part to be processed.
[0007] Furthermore, in the tempering fixture for large-sized sheet metal parts described in the present invention, two handles are provided, and the two handles are fixed to the pressing plate in a symmetrical state along the length direction of the pressing plate and close to its outer edge.
[0008] Furthermore, the tempering fixture for large-sized sheet metal parts described in the present invention is used, and the base, pressure plate, wedge-shaped piece, positioning column and handle are all made of stainless steel.
[0009] Compared with the prior art, the tempering fixture for large-size sheet metal parts described in the present invention has the following beneficial effects: through the cooperation of the positioning column and the wedge-shaped part, the sheet metal parts to be processed can be conveniently fixed under the action of the pressure plate, which not only solves the deformation problem of the parts, but also meets the production and processing needs of large quantities of parts, thereby improving product quality and processing efficiency. Its overall structure is relatively simple and easy to process, which can be applied to the diversified processing needs of part materials, is easy to operate, and can be recycled. It has low cost, simple clamping, strong practicality, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0011] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the AA section structure.
[0012] As shown in the figure: 1-base, 2-pressing plate, 3-wedge-shaped piece, 4-positioning column, 5-handle, 6-sheet metal part to be processed. DETAILED DESCRIPTION
[0013] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0014] like Figure 1 and Figure 2 As shown, the present embodiment provides a tempering fixture for large-sized sheet metal parts, including a base 1, a pressure plate 2, a wedge-shaped piece 3, a positioning column 4 and a handle 5. The base 1 and the positioning column 4 are fixedly connected together by welding, and the pressure plate 2 is positioned between the base 1 by the positioning column 4, and is fitted to the base 1 by the positioning column 4, which is used to adjust the fitting position between the base 1 and the pressure plate 2 so that they fit to the best position; a center hole corresponding to the wedge-shaped piece 3 is provided in the positioning column 4, and the wedge-shaped piece 3 is passed through the center hole between the positioning columns 4, and the outer end of the wedge-shaped piece 3 is hit with a hammer to apply pressure thereto, so that the pressure plate 2 and the base 1 can fit more closely together, thereby playing a role in molding the parts; two handles 5 are provided, and the two handles 5 are fixed on the pressure plate 2 in a symmetrical state along the length direction of the pressure plate 2 and close to its outer edge.
[0015] Furthermore, the tempering fixture described in this embodiment is used to enable the parts to be more affected by the pressure plate 2, so as to prevent the parts from being offset or slipping during the working process, thereby affecting the entire working process of the parts. The positioning columns 4 are symmetrically designed, and multiple positioning columns 4 are provided. The multiple positioning columns 4 are uniformly fixed to the base 1 by welding along the length direction of the base 1, so that they are fixed together with the base 1 to form an integrated structure.
[0016] In addition, in order to further meet the production process of large quantities of parts, the distance between the pressure plate 2 and the base 1 can be adjusted by positioning the position of the center hole of the positioning column 4, and the adjustment method is adjusted according to the thickness of the sheet metal to be processed, so that the number of clamping can be met, and multiple parts to be processed can be fixed by one clamping; and the fastening method between the pressure plate 2 and the base 1 is to generate extrusion by inserting the wedge-shaped piece 3 between the positioning columns 4, and the friction force is increased by extrusion to fix the pressure plate 2, thereby realizing the molding fixation of the sheet metal to be processed.
[0017] With the tempering fixture of the present invention, the base 1, the pressure plate 2, the wedge 3, the positioning column 4 and the handle 5 are all made of stainless steel. In a specific application process, a hook corresponding to the handle 5 is also provided. The specific working process is: first use a hammer to knock the inner end of the wedge piece 3 in turn, and slide the wedge piece 3 out of the center hole between the positioning columns 4, and then use the crane hook to hook the handle 5 on the pressure plate 2, so that the pressure plate 2 and the base 1 are in a separated state, and then according to the specific requirements of the furnace loading amount, the parts 6 to be processed are stacked in the base 1 in turn. For the position of placing the parts, it is necessary to refer to the position of the positioning columns 4, and the outer edges of the parts must be arranged neatly. When the parts are placed, the crane hook is used to hook the handle 5 on the pressure plate 2, and the pressure plate 2 is lifted above the base 1, and then placed on the parts 6, and finally pressure is applied to the pressure plate 2 to fix it. The operation method is to make the wedge piece 3 pass through the center hole of the positioning columns 4 in turn, and then use a hammer to knock the outer end of the wedge piece 3 to apply pressure to it, so that the pressure plate 2 is tightly fitted with the part 7 and the base 1, and a sufficient squeezing effect is formed on the parts. Finally, the crane hook is used to hook the handle 5 on the pressure plate 2, and the entire fixture is placed in the heating furnace for operation.
[0018] It has been proved through production practice that the use of the tempering fixture described in the present invention can not only greatly reduce the deformation of parts, but also meet the production process of large quantities of parts, and reduce the degree of oxidation on the outer surface of parts, further ensure the external dimensions of the parts, meet the subsequent processes of the parts, and further ensure the overall quality of the parts.
[0019] In summary, by using the tempering fixture described in the present invention, through the cooperation of the positioning column 4 and the wedge-shaped piece 3, under the action of the pressure plate 2, the sheet metal parts to be processed can be conveniently fixed, which not only solves the deformation problem of the parts, but also can meet the production and processing needs of large quantities of parts, thereby improving product quality and processing efficiency. Its overall structure is relatively simple and easy to process, which can be applied to the diversified processing needs of part materials, is easy to operate, and can be recycled. It has low cost, simple clamping, strong practicality, and is suitable for popularization and use.
[0020] Other details of the present invention are conventional technologies known to those skilled in the art and are therefore not described in detail.
[0021] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. The above description is only a preferred implementation method of the present invention and does not limit the present invention. Any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present invention should be included in the protection scope of the technical solutions of the present invention.
Claims
1. A tempering fixture for large-size sheet metal parts. Features: The invention comprises a base (1), a pressure plate (2), a wedge-shaped piece (3), a positioning column (4) and a handle (5), wherein the base (1) and the positioning column (4) are connected to form an integral structure by welding, the pressure plate (2) and the base (1) are positioned by the positioning column (4), and the positioning column (4) makes the pressure plate (2) fit on the base (1), so as to adjust the fitting position between the base (1) and the pressure plate (2); a center hole corresponding to the wedge-shaped piece (3) is provided in the positioning column (4), the wedge-shaped piece (3) is detachably arranged on the positioning column (5) through the center hole, and is in abutment with the pressure plate (2), the wedge-shaped piece (3) is used to make the pressure plate (2) and the base (1) fit together more closely, so as to play a role in molding the sheet metal to be processed; the handle (5) is arranged on the front side of the pressure plate (2).
2. A tempering fixture for large-size sheet metal parts according to claim 1, Features: A plurality of positioning columns (4) are provided, and the plurality of positioning columns (4) are evenly fixed on the base (1) along the length direction of the base (1); the distance between the pressing plate (2) and the base (1) is adjusted according to the thickness of the sheet metal to be processed; and the fastening method between the pressing plate (2) and the base (1) is to generate extrusion by inserting a wedge-shaped piece (3) between the positioning columns (4), thereby increasing the friction force by extrusion to achieve fixation of the pressing plate (2), thereby achieving mold fixation of the sheet metal to be processed.
3. A tempering fixture for large-sized sheet metal parts according to claim 1, Features: Two handles (5) are provided, and the two handles (5) are fixed on the pressing plate (2) in a symmetrical state along the length direction of the pressing plate (2) and close to the outer edge thereof.
4. A tempering fixture for large-sized sheet metal parts according to claim 1, Features: The base (1), the pressing plate (2), the wedge-shaped piece (3), the positioning column (4) and the handle (5) are all made of stainless steel.