A fixed die and stamping die for automobile front bumper

Abstract

The utility model relates to a kind of for automobile front apron fixed mould and stamping die, including lower die seat, female die and ejector rod assembly, female die is installed on lower die seat, female die has two interval arrangement stamping through-hole on it;Ejector rod assembly includes two ejector rods, two ejector rod drive units and controller, two ejector rods are respectively installed in two stamping through-holes, the output end of each ejector rod drive unit is connected with an ejector rod, controller is connected with two ejector rod drive units, controller is used to control ejector rod in stamping through-hole rises or falls along vertical direction, to make one stamping through-hole block, another stamping through-hole opens.The above technical solution is controlled by controller intelligent control ejector rod drive unit, so that ejector rod is accurately moved in stamping through-hole, realizes one side through-hole closure and another side through-hole opening.The design makes the same mould can adapt to left rudder or right rudder front apron production, significantly improve equipment utilization and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a fixed mold and stamping mold for automobile front fenders. Background Technology

[0002] The front fender is an important component of a car body, located between the engine compartment and the passenger compartment, serving functions such as sound insulation, heat insulation, and support. In stamping production, the front fender structure differs between left-hand drive and right-hand drive cars; for example, different holes or shapes need to be stamped in specific areas.

[0003] Existing molds typically require separate design of dedicated molds or complex adjustments for left-hand drive and right-hand drive front fenders, resulting in high production costs and low efficiency. Utility Model Content

[0004] Therefore, there is a need to provide a fixed mold and stamping mold for automotive front fenders to solve the technical problem that existing molds usually require the design of special molds or complex adjustments for left-hand drive and right-hand drive front fenders, resulting in high production costs and low efficiency.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a fixed mold for an automobile front fender, comprising:

[0006] Lower mold base;

[0007] A die, which is mounted on a lower die base, has two spaced-apart punching through holes.

[0008] The push rod assembly includes two push rods, two push rod drive units, and a controller. The two push rods are respectively installed in two stamping through holes. The output end of each push rod drive unit is connected to one push rod. The controller is communicatively connected to the two push rod drive units. The controller is used to control the push rods to rise or fall vertically in the stamping through holes, so that one stamping through hole is blocked and the other stamping through hole is opened.

[0009] Unlike existing technologies, the above-mentioned technical solution uses a controller to intelligently control the ejector rod drive unit, enabling the ejector rod to move precisely within the stamping through hole, thus closing one through hole while opening the other. This design allows the same mold to be used for the production of left-hand or right-hand drive front fenders, significantly improving equipment utilization and production efficiency, while reducing mold inventory and maintenance costs.

[0010] In one embodiment of this utility model, the controller includes two control switches, each control switch corresponding to a push rod drive unit, and the control switches control the push rod to rise or fall in the vertical direction.

[0011] Thus, the controller is equipped with two independent control switches, each corresponding to a push rod drive unit, allowing the operator to adjust the position of each push rod individually. This modular control method improves the convenience and flexibility of operation, ensures accurate push rod movement, and avoids misoperation.

[0012] In one embodiment of this utility model, two controllers are provided, with one controller installed at each stamping through hole.

[0013] In this way, by setting two controllers at each stamping hole, distributed control can be achieved, so that each stamping hole can have a controller to control the two push rods to rise or fall vertically, making control more convenient.

[0014] As one embodiment of this utility model, the fixed mold for the front baffle of an automobile also includes a sensing component. The sensing component is communicatively connected to the controller. The sensing component includes two first position sensors, each of which corresponds to a stamping through hole. The first position sensors are installed on the side wall at the top of the stamping through hole. The detection end of the first position sensor is aligned with the push rod. The first position sensor is used to detect the sealing position of the push rod in real time.

[0015] In this way, by setting two primary position sensors to monitor the sealing position of the push rod in real time and feeding the data back to the controller, it is ensured that the push rod is in the correct position during stamping, thus guaranteeing product consistency.

[0016] In one embodiment of this utility model, a first mounting groove is provided on the side wall of the top of the stamping through hole, a first position sensor is embedded in the first mounting groove, and a first protective sleeve is provided on the detection end of the first position sensor, the first protective sleeve being flush with the inner wall of the stamping through hole.

[0017] Thus, the first position sensor is embedded in the slot and the detection end is equipped with a first protective sleeve, which is flush with the inner wall of the through hole. This structure effectively protects the sensor from impact vibration and debris damage, extends the sensor's lifespan, and ensures detection accuracy.

[0018] As one embodiment of this utility model, the sensing component further includes two second position sensors, each second position sensor corresponding to a stamping through hole. The second position sensors are installed on the side wall at the bottom of the stamping through hole, and the detection end of the second position sensor is aligned with the top rod. The second position sensors are used to detect the opening position of the top rod in real time.

[0019] In this way, the second position sensor, combined with the first position sensor, can monitor the entire stroke of the push rod, ensuring that the stamping through hole is fully opened or closed, avoiding stamping interference, and improving production safety.

[0020] As one embodiment of this utility model, a second mounting groove is provided on the side wall at the bottom of the stamping through hole, a second position sensor is embedded in the second mounting groove, and a second protective sleeve is provided on the detection end of the second position sensor, the second protective sleeve being flush with the inner wall of the stamping through hole.

[0021] Thus, the second protective sleeve also serves to protect the sensor, maintain the flatness of the inner wall of the stamped through hole, and prevent the material flow from being obstructed.

[0022] As one embodiment of this utility model, the fixed mold for the front bumper of an automobile also includes an alarm. The alarm is communicatively connected to the sensing component and is used to issue an alarm when the sensing component detects that the position of the push rod does not conform to the set position.

[0023] In this way, when the sensing component detects that the position of the push rod deviates from the set value, the alarm will sound in time to prompt the operator to intervene, reduce the scrap rate and the risk of equipment damage, and enhance the reliability of the production process.

[0024] As one embodiment of this utility model, the top of the die is provided with a positioning boss, which is arranged around two stamping through holes. The top surface of the positioning boss is a fitting surface that is adapted to the contour of the car front fender. The two stamping through holes correspond to specific processing areas of the left-hand drive front fender and the right-hand drive front fender, respectively.

[0025] In this way, by setting positioning bosses to assist in the precise positioning of the car's front fender, it is ensured that the hole positions during stamping are consistent with those in the design. At the same time, the two stamping through holes are respectively designed for specific areas of the left-hand drive and right-hand drive front fenders, thus optimizing the structural adaptability.

[0026] To achieve the above objectives, in a second aspect, this utility model also provides a stamping die for an automobile front fender, comprising:

[0027] Any of the molds provided by the inventors above for use in automotive front fenders;

[0028] The moving mold is located above the fixed mold used for the front fender of an automobile.

[0029] Unlike existing technologies, the technical solution of this application sets up a moving mold and a fixed mold to complete the stamping action. Through the adjustment function of the ejector pin of the fixed mold, the overall mold can quickly switch production modes, realize flexible production of left-hand drive and right-hand drive front baffles, and greatly improve the mold versatility and production line adaptability.

[0030] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0031] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0032] In the accompanying drawings of the instruction manual:

[0033] Figure 1 This is a schematic diagram of the structure of a stamping die according to an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of a stamping die according to one embodiment of this application from another perspective;

[0035] Figure 3 This is a schematic diagram of the structure of a die according to an embodiment of this application;

[0036] Figure 4 This is a partial enlarged view of a mold according to an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of a push rod blocking a stamping through hole according to an embodiment of this application;

[0038] Figure 6 This is a schematic diagram of a sensing component installed in a cavity mold according to an embodiment of this application.

[0039] The reference numerals used in the above figures are explained as follows:

[0040] 100-Stamping die; 200-Automotive front fender; 1-Fixed die; 11-Lower die base; 12-Die; 121-Stamping through hole; 122-Positioning boss; 13-Ejector assembly; 131-Ejector; 133-Controller; 14-Sensing assembly; 141-First position sensor; 142-Second position sensor; 2-Moving die; Y-Vertical direction. Detailed Implementation

[0041] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0042] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0043] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0044] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0045] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0046] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0047] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0048] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0049] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0050] Existing molds typically require separate design of dedicated molds or complex adjustments for left-hand drive and right-hand drive front fenders, resulting in high production costs and low efficiency.

[0051] In view of this, this application provides a fixed mold 1 for a car front bumper 200, including a lower mold base 11, a die 12, and an ejector assembly 13. The die 12 is mounted on the lower mold base 11 and has two spaced-apart stamping through holes 121. The ejector assembly 13 includes two ejector rods 131, two ejector rod drive units, and a controller 133. The two ejector rods 131 are respectively installed in the two stamping through holes 121. The output end of each ejector rod drive unit is connected to one ejector rod 131. The controller 133 is communicatively connected to the two ejector rod drive units. The controller 133 is used to control the ejector rods 131 to rise or fall vertically in the Y direction within the stamping through holes 121, so that one stamping through hole 121 is blocked and the other stamping through hole 121 is opened.

[0052] According to some embodiments of this application, please refer to Figures 1 to 2 This embodiment relates to a stamping die 100 for a car front bumper 200, including a fixed die 1 and a moving die 2 for the car front bumper 200, the moving die 2 being located above the fixed die 1 for the car front bumper 200.

[0053] The lower surface of the moving die 2 is provided with a punch that mates with the surface of the die 12. During operation, the sheet metal is fed between the fixed die 1 and the moving die 2 and precisely positioned by the positioning boss 122. Then, the press drives the moving die 2 downward to close with the fixed die 1, completing the stamping of the sheet metal.

[0054] The technical solution of this application sets up a moving mold 2 and a fixed mold 1 to complete the stamping action. Through the adjustment function of the ejector rod 131 of the fixed mold 1, the overall mold can quickly switch production modes, realize flexible production of left-hand drive and right-hand drive front baffles, and greatly improve the mold versatility and production line adaptability.

[0055] According to some embodiments of this application, please refer to Figures 2 to 6 This embodiment also relates to a fixed mold 1 for a car front bumper 200, including a lower mold base 11, a die 12, and an ejector assembly 13. The die 12 is mounted on the lower mold base 11 and has two spaced-apart stamping through holes 121. The ejector assembly 13 includes two ejector rods 131, two ejector rod drive units, and a controller 133. The two ejector rods 131 are respectively installed in the two stamping through holes 121. The output end of each ejector rod drive unit is connected to one ejector rod 131. The controller 133 is communicatively connected to the two ejector rod drive units. The controller 133 is used to control the ejector rods 131 to rise or fall vertically in the Y direction within the stamping through holes 121, so that one stamping through hole 121 is blocked and the other stamping through hole 121 is opened.

[0056] The die 12 has positioning holes around the top of the stamping through hole 121. The positioning holes cooperate with the positioning pins on the moving die 2 to accurately position the stamping through hole 121. The two stamping through holes 121 correspond to the processing areas of the left and right rudder front panels, respectively.

[0057] The push rod drive unit is an existing structure and can be a servo motor or a hydraulic cylinder. The push rod 131 is embedded in the stamped through hole 121. The push rod drive unit is connected to the push rod 131. The controller 133 controls the action of the push rod drive unit through the signal line, so that the push rod 131 rises or falls in the vertical direction Y.

[0058] The above technical solution uses controller 133 to intelligently control the ejector rod drive unit, enabling the ejector rod 131 to move precisely within the stamping through hole 121, thus closing one through hole while opening the other. This design allows the same mold to be adapted for the production of left-hand or right-hand drive front panels, significantly improving equipment utilization and production efficiency, while reducing mold inventory and maintenance costs.

[0059] According to some embodiments of this application, optionally, the controller 133 includes two control switches, each control switch corresponding to a push rod drive unit, and the control switches control the push rod 131 to rise or fall in the vertical direction Y.

[0060] The controller 133 can be embodied as two independent control switches (such as push-button switches or selector switches with self-locking function), each control switch controlling a push rod drive unit through an independent circuit.

[0061] Thus, the controller 133 is equipped with two independent control switches, each corresponding to one push rod drive unit, allowing the operator to adjust the position of each push rod 131 individually. This modular control method improves the convenience and flexibility of operation, ensures the accurate movement of the push rod 131, and avoids misoperation.

[0062] like Figure 4 As shown, there are two controllers 133, one of which is installed at each stamping through hole 121.

[0063] Thus, by setting two controllers 133 at each of the stamping through holes 121, distributed control is achieved, so that each stamping through hole 121 can have a controller 133 to control the two push rods 131 to rise or fall in the vertical Y direction, making control more convenient.

[0064] like Figure 6 As shown, the fixed mold 1 for the car front bumper 200 also includes a sensing component 14. The sensing component 14 is communicatively connected to the controller 133. The sensing component 14 includes two first position sensors 141. Each first position sensor 141 corresponds to a stamping through hole 121. The first position sensor 141 is installed on the top side wall of the stamping through hole 121. The detection end of the first position sensor 141 is aligned with the push rod 131. The first position sensor 141 is used to detect the blocking position of the push rod 131 in real time.

[0065] The sealing position refers to whether the push rod 131 has risen to the correct position when one of the stamped through holes 121 needs to be sealed. The first position sensor 141 can be an eddy current proximity switch.

[0066] Thus, by setting two first position sensors 141 to monitor the sealing position of the push rod 131 in real time and feeding the data back to the controller 133, it is ensured that the push rod 131 is in the correct position during stamping, thus ensuring product consistency.

[0067] According to some embodiments of this application, optionally, a first mounting groove is provided on the side wall of the top of the stamping through hole 121, the first position sensor 141 is embedded in the first mounting groove, and the detection end of the first position sensor 141 is provided with a first protective sleeve, the first protective sleeve being flush with the inner wall of the stamping through hole 121.

[0068] Thus, the first position sensor 141 is embedded in the groove and the detection end is equipped with a first protective sleeve, which is flush with the inner wall of the through hole. This structure effectively protects the sensor from impact vibration and debris damage, extends the sensor's lifespan, and ensures detection accuracy.

[0069] like Figure 6 As shown, the sensing assembly 14 also includes two second position sensors 142, each second position sensor 142 corresponding to a stamped through hole 121. The second position sensor 142 is installed on the side wall at the bottom of the stamped through hole 121, and the detection end of the second position sensor 142 is aligned with the push rod 131. The second position sensor 142 is used to detect the opening position of the push rod 131 in real time.

[0070] The "open position" refers to detecting whether the push rod 131 has descended to the correct position when one of the stamped through holes 121 needs to be opened. The second position sensor 142 can be an eddy current proximity switch.

[0071] Thus, the second position sensor 142, in combination with the first position sensor 141, can monitor the entire stroke of the push rod 131, ensuring that the stamping through hole 121 is fully opened or closed, avoiding stamping interference and improving production safety.

[0072] According to some embodiments of this application, optionally, a second mounting groove is provided on the side wall at the bottom of the stamping through hole 121, the second position sensor 142 is embedded in the second mounting groove, and the detection end of the second position sensor 142 is provided with a second protective sleeve, the second protective sleeve being flush with the inner wall of the stamping through hole 121.

[0073] Thus, the second protective sleeve also serves to protect the sensor, maintain the flatness of the inner wall of the stamped through hole 121, and prevent the material flow from being obstructed.

[0074] According to some embodiments of this application, optionally, the fixed mold 1 for the front bumper 200 of the vehicle also includes an alarm, which is communicatively connected to the sensing component 14. The alarm is used to issue an alarm when the sensing component 14 detects that the position of the push rod 131 does not conform to the set position.

[0075] After the system issues a command, it continuously receives signals from the sensing component 14. For example, after commanding the right ejector pin 131 to "rise and block the hole," if the controller 133 does not receive a positioning signal from the right first position sensor 141 within a set time, it determines that the ejector pin 131 is moving abnormally. At this time, the system will immediately stop the stamping cycle and trigger an alarm (such as an audible and visual alarm light) to remind the operator to intervene and check, thereby effectively preventing mold impact or product scrap accidents caused by incorrect positioning of the ejector pin 131.

[0076] Thus, when the sensing component 14 detects that the position of the push rod 131 deviates from the set value, the alarm will sound in time to prompt the operator to intervene, reduce the scrap rate and the risk of equipment damage, and enhance the reliability of the production process.

[0077] like Figure 3 and Figure 4 As shown, the top of the die 12 is provided with a positioning boss 122, which surrounds two stamping through holes 121. The top surface of the positioning boss 122 is a fitting surface adapted to the contour of the car front fender 200. The two stamping through holes 121 correspond to specific processing areas of the left-hand drive front fender and the right-hand drive front fender, respectively.

[0078] Thus, by setting the positioning boss 122 to assist in the precise positioning of the car front fender 200, it is ensured that the hole position during stamping is consistent with the design. At the same time, the two stamping through holes 121 are respectively designed for specific areas of the left-hand drive and right-hand drive front fenders, thus optimizing the structural adaptability.

[0079] When the stamping die 100 for the automotive front fender 200 is performing stamping operations, the controller 133 controls one ejector rod 131 to rise and block the corresponding through hole according to the production command, while another ejector rod 131 descends and opens the through hole. For example, when producing a left-hand drive front fender, the left ejector rod 131 descends to open the through hole, and the right ejector rod 131 rises to close the through hole. The sensing component 14 monitors the position of the ejector rods 131 in real time to ensure accuracy. The moving die 2 closes with the fixed die 1 when it is pressed down, completing the stamping process.

[0080] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection for this utility model.

Claims

1. A fixed mold for an automobile front fender, characterized in that, include: Lower mold base; A die, which is mounted on the lower die base, has two spaced-apart punching through holes; The push rod assembly includes two push rods, two push rod drive units, and a controller. The two push rods are respectively installed in the two stamping through holes. The output end of each push rod drive unit is connected to one of the push rods. The controller is communicatively connected to the two push rod drive units. The controller is used to control the push rods to rise or fall vertically in the stamping through holes, so that one of the stamping through holes is blocked and the other stamping through hole is opened.

2. The fixed mold for an automobile front fender according to claim 1, characterized in that, The controller includes two control switches, each control switch corresponding to one of the push rod drive units, and the control switches control the push rod to rise or fall along the vertical direction.

3. The fixed mold for an automobile front fender according to claim 1, characterized in that, There are two controllers, one of which is installed at each of the stamping through holes.

4. The fixed mold for an automobile front fender according to claim 1, characterized in that, The fixed mold for the automotive front fender also includes a sensing component, which is communicatively connected to the controller. The sensing component includes two first position sensors, each corresponding to one of the stamping through holes. The first position sensors are installed on the top sidewall of the stamping through hole, and the detection end of the first position sensor is aligned with the push rod. The first position sensors are used to detect the sealing position of the push rod in real time.

5. The fixed mold for an automobile front fender according to claim 4, characterized in that, The top sidewall of the stamping through hole is provided with a first mounting groove, the first position sensor is embedded in the first mounting groove, and the detection end of the first position sensor is provided with a first protective sleeve, the first protective sleeve being flush with the inner wall of the stamping through hole.

6. The fixed mold for an automobile front fender according to claim 4, characterized in that, The sensing assembly further includes two second position sensors, each corresponding to one of the stamping through holes. The second position sensors are installed on the bottom sidewall of the stamping through hole, and the detection end of the second position sensor is aligned with the push rod. The second position sensors are used to detect the open position of the push rod in real time.

7. The fixed mold for an automobile front fender according to claim 6, characterized in that, The bottom sidewall of the stamping through hole is provided with a second mounting groove, the second position sensor is embedded in the second mounting groove, and the detection end of the second position sensor is provided with a second protective sleeve, the second protective sleeve being flush with the inner wall of the stamping through hole.

8. The fixed mold for an automobile front fender according to any one of claims 4 to 7, characterized in that, The fixed mold for the car front bumper also includes an alarm, which is communicatively connected to the sensing component. The alarm is used to issue an alarm when the sensing component detects that the position of the push rod does not conform to a set position.

9. The fixed mold for an automobile front fender according to claim 1, characterized in that, The top of the die is provided with a positioning boss, which is arranged around the two stamping through holes. The top surface of the positioning boss is a fitting surface adapted to the contour of the car front fender. The two stamping through holes correspond to specific processing areas of the left-hand drive front fender and the right-hand drive front fender, respectively.

10. A stamping die for an automobile front fender, characterized in that, include: A fixed mold for an automobile front fender as described in any one of claims 1 to 9; A moving mold, which is located above the fixed mold for the automotive front fender.

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