Cold heading die for automobile lining

Abstract

The utility model discloses a cold heading die for an automobile lining, and relates to the technical field of cold heading dies. The connecting mechanism comprises a first-section mold and a second-section mold, the connecting mechanism comprises a plurality of inserting grooves, a plurality of inserting blocks are arranged at the bottom of the second-section mold, an oil cavity is formed in the inner wall of each inserting groove, an elastic piece is arranged on one side of each oil cavity, a threaded hole is formed in one side of the surface of the second-section mold, and the elastic pieces are arranged in the threaded holes. According to the utility model, the threaded block is screwed by using tools such as a screw driver through the connecting mechanism, so that the threaded block is in threaded connection with the threaded hole in the two-section mold, and the elastic sheet gradually deforms and tightly abuts against the limiting groove in the insertion block, so that the insertion block and the insertion groove are firmly clamped; according to the mode of hydraulic pressurization, the strength of the connecting structure between the first-section mold and the second-section mold is improved, meanwhile, the convenience of connection between the first-section mold and the second-section mold is greatly improved, and the stability and durability of the mold are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading dies, in particular to a cold heading die for an automobile bushing. Background Art

[0002] The cold heading die for automobile bushings is a high-precision tool specially designed for manufacturing automobile bushings. It plays a key role in the cold heading process. This die is made of high-quality alloy materials with high strength and wear resistance, which can ensure the manufacture of high-precision and durable automobile bushings. Choosing the right die material and design is essential to ensuring production efficiency and product quality. At the same time, regular maintenance is equally important to extend the service life of the die. The cold heading die for automobile bushings is not only a key tool in the manufacture of automotive parts, but also an important guarantee to ensure the output of high-quality products in the automotive industry.

[0003] At present, for the cold heading die of automobile bushing for long rod sleeve processing, it is necessary to use a spliced ​​die to ensure its processing applicability. However, the existing die splicing methods, such as threaded connection or snap-on connection, have obvious shortcomings. These connection methods not only need to improve the connection firmness, but also the convenience of splicing is relatively poor. This problem needs to be solved urgently to improve the use efficiency and processing quality of the die. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a cold heading die for an automobile bushing to solve the current technical problem of poor convenience and firmness of die splicing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a cold heading die for an automobile bushing, comprising a first-stage die and a second-stage die, a connecting mechanism is arranged between the first-stage die and the second-stage die, the connecting mechanism comprises a plurality of slots, a plurality of plug blocks are arranged at the bottom of the second-stage die, an oil cavity is arranged on the inner wall of the slot, a spring sheet is arranged on one side of the oil cavity, a threaded hole is arranged on one side of the surface of the second-stage die, and a threaded block is connected to the internal thread of the threaded hole.

[0006] By adopting the above technical solution, the threaded block is twisted with a tool and screwed into the threaded hole through a threaded connection. This operation realizes the pressurization of the hydraulic oil inside the oil chamber. The hydraulic oil is transmitted to the spring piece after being subjected to pressure, causing it to gradually deform. At the same time, the deformed spring piece tightly abuts against the limit groove of the plug block, thereby achieving a firm engagement between the plug block and the slot.

[0007] Furthermore, the threaded hole is communicated with the oil chamber, and the oil chamber is an annular cavity structure.

[0008] By adopting the above technical solution, the operation on the threaded block through the threaded hole can directly affect the hydraulic oil pressure in the oil cavity, making the pressurization process more direct and efficient. At the same time, the annular cavity structure of the oil cavity ensures that the hydraulic oil can be evenly distributed around the elastic piece, so that the elastic piece can deform evenly when subjected to pressure.

[0009] Furthermore, each of the multiple slots and the inserted blocks are in relative positions one by one and are adapted for insertion.

[0010] By adopting the above technical solution, the accuracy and alignment of the mold splicing are ensured, enabling the inserted block to be accurately inserted into the corresponding slot, avoiding misalignment or deviation during the splicing process.

[0011] Furthermore, a limiting groove is provided on the surface of the inserted block close to the elastic piece, and the limiting groove has an inclined surface structure.

[0012] By adopting the above technical solution, the limiting groove provides a stable contact point for the elastic piece, enabling the elastic piece to be tightly embedded in the limiting groove when deforming under the pressure of the hydraulic oil, thereby enhancing the connection stability between the inserted block and the slot.

[0013] Furthermore, installation cavities are provided inside both the first-stage mold and the second-stage mold for installing the bushing processing mold blocks.

[0014] By adopting the above technical solution, the installation cavities provide a convenient installation space for the bushing processing mold blocks, enabling the mold blocks to be easily fixed inside these two molds, thereby ensuring the stability and accuracy during the processing.

[0015] Furthermore, a sealing snap ring is provided on the outer side of the bottom surface of the first-stage mold, and the sealing snap ring is buckled with the outer periphery of the top surface of the second-stage mold.

[0016] By adopting the above technical solution, the sealing performance between the molds is enhanced, effectively preventing the infiltration of liquid or impurities during the processing, thereby protecting the precision components inside the molds and ensuring the processing quality and the service life of the molds.

[0017] Furthermore, an installation block is provided on the outer side of the first-stage mold, and an installation hole is provided on the installation block to provide a bolt installation point for the mold installation.

[0018] By adopting the above technical solution, the installation hole provides a convenient bolt fixing point for the installation of the mold, enabling the mold to be easily fixed on the processing equipment, improving the installation efficiency, and at the same time ensuring that the mold will not shift due to equipment vibration during use, guaranteeing the processing accuracy.

[0019] In summary, the present utility model mainly has the following beneficial effects:

[0020] With the connecting mechanism of the present utility model, the die block is installed in the installation cavities inside the first-stage die and the second-stage die. Subsequently, the insertion block at the bottom of the first-stage die is inserted into the slot on the top surface of the second-stage die. Then, a tool such as a screwdriver is used to turn the threaded block so that it is threadedly connected to the threaded hole on the second-stage die. This operation realizes the pressurization of the hydraulic oil inside the oil cavity, thereby causing the elastic piece to gradually deform. During the deformation of the elastic piece, it will tightly abut against the limiting groove on the insertion block, thus realizing the firm engagement of the insertion block and the slot. This method of using hydraulic pressurization not only significantly improves the connection structure strength between the first-stage die and the second-stage die, but also greatly improves the convenience of their connection, ensures the stability and durability of the die, optimizes the operation process, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is an exploded structural schematic diagram of the present utility model;

[0023] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0024] Figure 4 is the present utility model Figure 3 the enlarged structural schematic diagram at A in.

[0025] In the figure: 1, first-stage die; 2, second-stage die; 3, mounting block; 4, installation cavity; 5, connecting mechanism; 501, slot; 502, insertion block; 503, limiting groove; 504, oil cavity; 505, elastic piece; 506, threaded hole; 507, threaded block; 6, sealing snap ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] The following will describe the embodiments according to the overall structure of the present utility model.

[0030] Embodiment 1:

[0031] The cold heading die of an automotive bushing, as Figures 1-4 shown, includes a first-stage die 1 and a second-stage die 2. A connection mechanism 5 is provided between the first-stage die 1 and the second-stage die 2. The connection mechanism 5 includes a plurality of slots 501. A plurality of inserts 502 are provided at the bottom of the second-stage die 2. An oil cavity 504 is formed in the inner wall of the slot 501. A spring piece 505 is provided on one side of the oil cavity 504. A threaded hole 506 is formed on one side of the surface of the second-stage die 2. A threaded block 507 is threadedly connected inside the threaded hole 506. By using a tool to turn the threaded block 507, it is screwed into the threaded hole 506 by means of threaded connection. This operation realizes the pressurization of the hydraulic oil inside the oil cavity 504. After the hydraulic oil is pressurized, it is transmitted to the spring piece 505, causing it to gradually deform. At the same time, the deformed spring piece 505 tightly abuts against the limiting groove 503 of the insert 502. In this way, a firm engagement between the insert 502 and the slot 501 is realized. The hydraulic pressurization method not only enhances the connection structure strength between the first-stage die 1 and the second-stage die 2, but also simplifies the connection operation process, thereby improving the convenience of connection.

[0032] Referring to Figure 2 、 Figure 3 、 Figure 4 , the threaded hole 506 is communicated with the oil cavity 504. The oil cavity 504 is in a ring-shaped cavity structure, so that the operation of the threaded block 507 through the threaded hole 506 can directly affect the hydraulic oil pressure inside the oil cavity 504, making the pressurization process more direct and efficient. At the same time, the ring-shaped cavity structure of the oil cavity 504 ensures that the hydraulic oil can be evenly distributed around the spring piece 505, so that the spring piece 505 can deform evenly when subjected to pressure. This not only improves the stability and reliability of the deformation of the spring piece 505, but also helps to enhance the connection strength between the insert 502 and the slot 501, simplifies the operation process, and improves the stability of the die connection.

[0033] Referring to Figure 2 、Figure 3 , Figure 4 , a plurality of slots 501 are in one-to-one position correspondence with the plug blocks 502 and are pluggably adapted, ensuring the accuracy and alignment of the mold splicing, enabling the plug blocks 502 to be accurately inserted into the corresponding slots 501 without error, avoiding misalignment or deviation during the splicing process. At the same time, the pluggable adaptation feature ensures the tightness and stability of the connection. The tight fit between the plug blocks 502 and the slots 501 can not only prevent the mold from loosening or falling off during use but also effectively transmit force, ensuring the integrity and consistency of the mold during operation, which not only improves the use safety of the mold but also extends its service life.

[0034] Embodiment 2:

[0035] Refer to Figure 4 , a limiting groove 503 is formed on the surface of one side of the plug block 502 close to the elastic piece 505. The limiting groove 503 has an inclined surface structure. The limiting groove 503 provides a stable abutting point for the elastic piece 505, enabling the elastic piece 505 to be tightly embedded in the limiting groove 503 when deformed under the pressure of hydraulic oil, thereby enhancing the connection stability between the plug block 502 and the slot 501. At the same time, the inclined surface structure of the limiting groove 503 enables the elastic piece 505 to enter the limiting groove more smoothly during the deformation process, reducing friction and resistance. This not only helps to protect the elastic piece 505 and extend its service life but also ensures the smoothness of the mold during rapid splicing and disassembly, improving the operation efficiency.

[0036] Refer to Figure 3 , installation cavities 4 are formed inside both the first-stage mold 1 and the second-stage mold 2 for installing the bushing processing mold blocks. The installation cavities 4 provide a convenient installation space for the bushing processing mold blocks, enabling the mold blocks to be easily fixed inside these two molds, thereby ensuring the stability and accuracy during the processing. At the same time, the setting of the installation cavities 4 also facilitates the replacement and maintenance of the mold blocks. When the mold blocks need to be replaced or repaired, the operator can easily take them out of or put them into the installation cavities 4, greatly improving the work efficiency. In addition, this modular design also helps to reduce production costs because different mold blocks can be quickly replaced according to different processing requirements without replacing the entire mold.

[0037] Refer to Figure 3 , Figure 4, a sealing snap ring 6 is provided on the outer side of the bottom surface of the first-stage mold 1. The sealing snap ring 6 is buckled with the outer periphery of the top surface of the second-stage mold 2, enhancing the sealing performance between the molds, effectively preventing the infiltration of liquid or impurities during the processing, thus protecting the precision components inside the molds, ensuring the processing quality and the service life of the molds. At the same time, the buckling of the sealing snap ring 6 further strengthens the connection between the first-stage mold 1 and the second-stage mold 2. This stable connection not only improves the overall structural strength of the mold but also effectively prevents the mold from loosening or separating due to vibration or impact during use, thus ensuring the stability and safety of the processing process.

[0038] Refer to Figure 1 , Figure 2 , Figure 3 , an installation block 3 is provided on the outer side of the first-stage mold 1. An installation hole is opened on the installation block 3, providing a bolt installation point for the mold installation. The installation hole provides a convenient bolt fixing point for the mold installation, enabling the mold to be easily fixed on the processing equipment, improving the installation efficiency, and at the same time ensuring that the mold will not shift due to the vibration of the equipment during use, guaranteeing the processing accuracy. At the same time, the setting of the installation block 3 and the installation hole also enhances the stability and safety of the mold. By firmly fixing the mold on the equipment with bolts, it can effectively prevent the mold from accidentally falling off or shifting during the processing, thus reducing the safety risk and also facilitating the disassembly and maintenance of the mold, improving the production efficiency.

[0039] The implementation principle of the present utility model is as follows: First, multiple mold blocks are installed inside the installation cavity 4 of the first-stage mold 1 and the second-stage mold 2. At the same time, the insertion block 502 at the bottom of the first-stage mold 1 is inserted into the slot 501 on the top surface of the second-stage mold 2. Subsequently, a tool is used to screw the threaded block 507, causing the threaded block 507 to be threadedly connected with the threaded hole 506, realizing the pressurization operation of the hydraulic oil inside the oil cavity 504, thereby causing the elastic piece 505 to gradually deform. At the same time, the deformed elastic piece 505 abuts against the surfaces of the limiting groove 503 and the insertion block 502, realizing the fixed plug-in engagement of the insertion block 502 and the slot 501. By means of hydraulic pressurization, the connection structural strength between the first-stage mold 1 and the second-stage mold 2 is improved, and at the same time, the connection operation convenience between the first-stage mold 1 and the second-stage mold 2 is improved.

[0040] Parts not involved in the present utility model are the same as or can be implemented by the prior art, and will not be elaborated here.

[0041] Although embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and are not limitations thereof. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. Cold heading die for automotive bushing, characterized in that: It includes a first-stage mold (1) and a second-stage mold (2). A connecting mechanism (5) is provided between the first-stage mold (1) and the second-stage mold (2). The connecting mechanism (5) includes a plurality of slots (501). A plurality of insertion blocks (502) are provided at the bottom of the second-stage mold (2). An oil cavity (504) is formed in the inner wall of the slot (501). A elastic sheet (505) is provided on one side of the oil cavity (504). A threaded hole (506) is formed on one side of the surface of the second-stage mold (2). A threaded block (507) is threadedly connected inside the threaded hole (506).

2. The cold heading die for an automotive bushing according to claim 1, characterized in that: The threaded hole (506) communicates with the oil cavity (504), and the oil cavity (504) has an annular cavity structure.

3. The cold heading die for an automotive bushing according to claim 1, characterized in that: The positions of the plurality of slots (501) and the insertion blocks (502) are opposite to each other one by one and are adapted for insertion.

4. The cold heading die for an automotive bushing according to claim 1, characterized in that: A limiting groove (503) is formed on the surface of one side of the insertion block (502) close to the elastic sheet (505), and the limiting groove (503) has an inclined surface structure.

5. The cold heading die for an automotive bushing according to claim 1, characterized in that: Installation cavities (4) are formed inside both the first-stage mold (1) and the second-stage mold (2) for installing bushing processing mold blocks.

6. The cold heading die for an automotive bushing according to claim 1, wherein: A sealing snap ring (6) is provided on the outer side of the bottom surface of the first-stage mold (1), and the sealing snap ring (6) is buckled with the outer periphery of the top surface of the second-stage mold (2).

7. The cold heading die for an automotive bushing according to claim 1, characterized in that: An installation block (3) is provided on the outer side of the first-stage mold (1), and an installation hole is formed on the installation block (3) to provide a bolt installation point for mold installation.

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