Automobile tail pipe bulging die
By designing an easily disassembled automotive tailpipe bulging mold, the problem of difficult mold replacement was solved, enabling efficient bulging processing of tailpipes of different sizes and improving processing accuracy and pass rate.
Patent Information
- Application Number
- CN202422806431.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The existing automotive tailpipe bulging mold is inconvenient to disassemble and replace the lower mold during use, which makes it impossible to bulge tailpipes of different sizes.
A tailpipe bulging mold for automobiles was designed, comprising a base, mounting components, support components, and adjustment components. Through the cooperation of a reset spring, guide block, and disassembly seat, the lower mold can be easily disassembled and replaced to adapt to the bulging requirements of tailpipes of different sizes.
It enables convenient disassembly and replacement of the lower mold, ensuring the bulging processing accuracy and pass rate of tail tubes of different sizes, and reducing the difficulty and cost of mold development.
Smart Images

Figure CN223491855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, and in particular to an automotive tailpipe bulging mold. Background Technology
[0002] Currently, bulging dies employ single-action pressing. A round tube is fitted onto the bulging die, and during stamping, the die's interior expands outward via a slider, causing the product to naturally deform and conform to the die's shape. However, existing die structures, when pressing asymmetrical or irregularly shaped products, can lead to discrepancies in dimensional requirements due to factors such as product asymmetry and varying tensile strength. This necessitates precise calculations of die rebound and material tensile strength accuracy. Even slight fluctuations in accuracy can compromise product yield. This increases the difficulty and cost of die development, resulting in a low product manufacturing pass rate.
[0003] The existing announcement number CN205463957U discloses an automobile tailpipe bulging mold, including an upper mold base and a lower mold base. The upper surface of the lower mold base is provided with a pad, and a clamping plate is fixedly provided on the pad. Two guide cutters are provided on the clamping plate, and a slide is fixedly provided on the clamping plate. The clamping plate is connected to a stripper plate by a spring. The stripper plate has two inner sliders and two outer sliders. The inner side of the two outer sliders corresponds to the outer side of the two inner sliders. The automobile tailpipe blank to be bulged is fitted on the outer side of the two inner sliders. This bulging mold can wrap and bulge the inner and outer sides of the blank. The automobile tailpipe blanks stamped by the bulging mold have a high pass rate.
[0004] However, the aforementioned automotive tailpipe bulging mold is not easy to disassemble and replace the lower mold during use, which makes it impossible to bulge tailpipes of different sizes. Utility Model Content
[0005] The purpose of this utility model is to provide an automotive tailpipe bulging mold, which solves the problem that it is inconvenient to disassemble and replace the lower mold during use, resulting in the inability to bulge tailpipes of different sizes.
[0006] To achieve the above objectives, this utility model provides an automotive tailpipe bulging mold, comprising a base, a mounting assembly, a support assembly, and an adjustment assembly. The mounting assembly includes a return spring, a return plate, a disassembly seat, and guide blocks. Multiple return springs are fixedly connected to the base and located inside the base. The return plate is fixedly connected to the return springs and located on top of them. The disassembly seat is slidably connected to the base and located on top of the return plate. Two guide blocks are fixedly connected to the disassembly seat and located on opposite sides of the disassembly seat. The support assembly and the adjustment assembly are connected to the base.
[0007] The installation assembly further includes an installation strip, a support column, and a lower mold. There are two installation strips, which are detachably connected to the disassembly seat and located inside the disassembly seat. The support column is fixedly connected to the installation strip and located on top of the installation strip. The lower mold is fixedly connected to the support column and located on top of the support column.
[0008] The support assembly includes a support frame, a hydraulic telescopic rod, a pressure seat, and guide rods. The support frame is fixedly connected to the base and located at the top of the base. The hydraulic telescopic rod is fixedly connected to the support frame and passes through the support frame. The pressure seat is fixedly connected to the hydraulic telescopic rod and located at the bottom of the hydraulic telescopic rod. There are two guide rods, each fixedly connected to the pressure seat and passing through the support frame.
[0009] The support assembly further includes a lead screw sleeve, a fixing screw, and a fixing plate. There are two lead screw sleeves, which are fixedly connected to the pressure seat and located in the middle of the pressure seat. There are two fixing screws, which are threadedly connected to the lead screw sleeves and pass through the pressure seat. There are two fixing plates, which are rotatably connected to the fixing screws and located inside the pressure seat.
[0010] The adjustment assembly includes an adjustment screw, a movable seat, a mounting plate, and a surrounding seat. There are two adjustment screws, each rotatably connected to and passing through the base. There are multiple movable seats, each threadedly connected to one of the adjustment screws and located outside the screw. There are two mounting plates, each fixedly connected to one of the movable seats and located on top of the seat. There are also two surrounding seats, each fixedly connected to one of the mounting plates and located on top of the mounting plate.
[0011] This utility model discloses an automotive tailpipe bulging mold. The base provides support for the device, and the interior of the base has a groove for the guide block to move, including two limiting grooves and two discharge grooves. The return spring provides elastic force to the return plate, which supports the disassembly seat. The disassembly seat provides installation for the mounting strip, and the guide block provides guidance and limiting for the disassembly seat. When the lower mold needs to be disassembled, the disassembly seat is pressed down along the guide block, and then the disassembly seat is rotated so that the guide block is at the discharge groove. Then, the pressed disassembly seat is released, and the elastic force provided by the return spring lifts the return plate, simultaneously pushing the disassembly seat out of the base. This facilitates the replacement of the lower mold and allows for the bulging of automotive tailpipes of more sizes. It solves the problem that automotive tailpipe bulging molds are inconvenient to disassemble and replace the lower mold during use, which prevents the bulging of tailpipes of different sizes. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of the automobile tailpipe bulging mold according to the first embodiment of this utility model.
[0014] Figure 2 This is a schematic diagram of the installation component according to the first embodiment of the present invention.
[0015] Figure 3 This is a schematic diagram of the support component of the first embodiment of the present invention.
[0016] Figure 4 This is a schematic diagram of the structure of the adjustment component according to the first embodiment of this utility model.
[0017] In the diagram: 101-base, 102-reset spring, 103-reset plate, 104-disassembly seat, 105-guide block, 106-installation strip, 107-support column, 108-lower mold, 109-support frame, 110-hydraulic telescopic rod, 111-pressure seat, 112-guide rod, 113-screw sleeve, 114-fixing screw, 115-fixing plate, 116-adjusting screw, 117-moving seat, 118-installation plate, 119-enclosing seat. Detailed Implementation
[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] The first embodiment of this application is as follows:
[0020] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of the automobile tailpipe bulging mold according to the first embodiment of this utility model. Figure 2 This is a schematic diagram of the installation component according to the first embodiment of this utility model. Figure 3 This is a schematic diagram of the support component according to the first embodiment of the present invention. Figure 4 This is a schematic diagram of the adjustment component of the first embodiment of the present invention. The present invention provides an automotive tailpipe bulging mold, including a base 101, a mounting component, a support component, and an adjustment component. The mounting component includes a return spring 102, a return plate 103, a disassembly seat 104, a guide block 105, a mounting strip 106, a support column 107, and a lower mold 108. The support component includes a support frame 109, a hydraulic telescopic rod 110, a pressure seat 111, a guide rod 112, a lead screw sleeve 113, a fixing screw 114, and a fixing plate 115. The adjustment component includes an adjustment lead screw 116, a moving seat 117, a mounting plate 118, and a surrounding seat 119. The aforementioned solution solves the problem that the lower mold is inconvenient to disassemble and replace during use, which makes it impossible to bulge tailpipes of different sizes. It can be understood that the aforementioned solution can be used in scenarios where automotive tailpipes of different sizes are bulged, and can also be used to solve the problem of ensuring processing accuracy during automotive tailpipe bulging.
[0021] In this specific embodiment, there are multiple return springs 102, each fixedly connected to the base 101 and located inside the base 101. A return plate 103 is fixedly connected to the return springs 102 and located on top of them. A disassembly seat 104 is slidably connected to the base 101 and located on top of the return plate 103. There are two guide blocks 105, each fixedly connected to the disassembly seat 104 and located on either side of it. The support assembly and the adjustment assembly are connected to the base 101, which provides support for the device. The base 101 has grooves inside for the guide blocks 105 to move, including two limiting grooves. The lower mold 108 has two discharge slots. The reset spring 102 provides elastic force to the reset plate 103, which supports the disassembly seat 104. The disassembly seat 104 provides installation for the mounting strip 106. The guide block 105 provides guidance and limiting for the disassembly seat 104. When the lower mold 108 needs to be disassembled, the disassembly seat 104 is pressed down along the guide block 105, and then the disassembly seat 104 is rotated so that the guide block 105 is at the discharge slot. Then the pressed disassembly seat 104 is released, and the reset plate 103 is lifted up by the elastic force provided by the reset spring 102. At the same time, the disassembly seat 104 is pushed out of the base 101, which facilitates the replacement of the lower mold 108 and facilitates the expansion forming of more sizes of automobile tailpipes.
[0022] The device includes two mounting strips 106, each detachably connected to the disassembly seat 104 and located inside the disassembly seat 104. A support column 107 is fixedly connected to the mounting strips 106 and located at the top of the mounting strips 106. A lower mold 108 is fixedly connected to the support column 107 and located at the top of the support column 107. The mounting strips 106 provide mounting for the support column 107 and the lower mold 108, while the support column 107 provides support for the lower mold 108. The lower mold 108 is used to bulge the vehicle tailpipe. During bulging, the vehicle tailpipe is fitted onto the outside of the lower mold 108. The bulging is facilitated by the pressure seat 111 and the protection provided by the adjusting assembly.
[0023] Secondly, the support frame 109 is fixedly connected to the base 101 and is located on top of the base 101. The hydraulic telescopic rod 110 is fixedly connected to the support frame 109 and passes through the support frame 109. The pressure seat 111 is fixedly connected to the hydraulic telescopic rod 110 and is located at the bottom of the hydraulic telescopic rod 110. There are two guide rods 112, which are respectively fixedly connected to the pressure seat 111 and pass through the support frame 109. The support frame 109 provides support for the support assembly. The hydraulic telescopic rod 110 is used to control the pressure seat 111. The pressure seat 111 is used to fix the top of the car tailpipe. The guide rod 112 is used to guide the pressure seat 111. In use, the hydraulic telescopic rod 110 pushes the pressure seat 111 downward along the guide rod 112 to press the car tailpipe on the outside of the lower mold 108, which facilitates the expansion and shaping of the car tailpipe.
[0024] Furthermore, there are two lead screw sleeves 113, which are fixedly connected to the pressure seat 111 and located in the middle of the pressure seat 111. There are two fixing screws 114, which are threadedly connected to the lead screw sleeves 113 and pass through the pressure seat 111. There are two fixing plates 115, which are rotatably connected to the fixing screws 114 and located inside the pressure seat 111. The lead screw sleeves 113 are used to limit the position of the fixing screws 114, the fixing screws 114 are used to adjust the position of the fixing plates 115, and the fixing plates 115 are used to fix the top of the vehicle tailpipe to prevent the vehicle tailpipe from shifting when the pressure seat 111 is pressed down.
[0025] Finally, there are two adjusting screws 116, each rotatably connected to and passing through the base 101. There are multiple movable seats 117, each threadedly connected to one of the adjusting screws 116 and located outside the screw. There are two mounting plates 118, each fixedly connected to one of the movable seats 117 and located on top of the seat. There are also two surrounding seats 119, each fixedly connected to one of the mounting plates 118 and positioned separately. Located on top of the mounting plate 118, the adjusting screw 116 is connected to an external transmission device and provides power to the moving seat 117. The moving seat 117 provides support and transmission for the mounting plate 118, and the mounting plate 118 provides support for the surrounding seat 119. The surrounding seat 119 is used to protect the outside of the vehicle tailpipe, ensuring the accuracy of the tailpipe bulging. When bulging different vehicle tailpipes, rotating the adjusting screw 116 moves the moving seat 117, which in turn moves the mounting plate 118 and the surrounding seat 119, facilitating the protection of vehicle tailpipes of different sizes.
[0026] Using the automotive tailpipe bulging mold of this embodiment, the base 101 provides support for the device. The base 101 has a groove inside for the guide block 105 to move, including two limiting grooves and two discharge grooves. The return spring 102 provides elasticity to the return plate 103, which supports the disassembly seat 104. The disassembly seat 104 provides mounting for the mounting strip 106. The guide block 105 provides guidance and limiting for the disassembly seat 104. When it is necessary to disassemble the lower mold 108, the disassembly... The seat 104 is pressed down along the guide block 105, and then the disassembly seat 104 is rotated so that the guide block 105 is at the discharge chute. Then the pressed disassembly seat 104 is released, and the reset plate 103 is lifted up by the elastic force provided by the reset spring 102. At the same time, the disassembly seat 104 is pushed out of the base 101, which facilitates the replacement of the lower mold 108. This makes it easier to handle the bulging of more sizes of automobile tailpipes and solves the problem that it is not convenient to disassemble and replace the lower mold when using the automobile tailpipe bulging mold, which makes it impossible to bulge tailpipes of different sizes.
[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A molding die for forming an automobile tailpipe, comprising a base, characterized in that, It also includes mounting components, support components, and adjustment components; The mounting assembly includes a reset spring, a reset plate, a disassembly seat, and guide blocks. There are multiple reset springs, each fixedly connected to the base and located inside the base. The reset plate is fixedly connected to the reset springs and located on top of them. The disassembly seat is slidably connected to the base and located on top of the reset plate. There are two guide blocks, each fixedly connected to the disassembly seat and located on either side of the disassembly seat. The support assembly and the adjustment assembly are connected to the base.
2. The automotive tailpipe bulging mold as described in claim 1, characterized in that, The mounting assembly further includes mounting strips, support columns, and a lower mold. There are two mounting strips, which are detachably connected to the disassembly seat and located inside the disassembly seat. The support column is fixedly connected to the mounting strip and located on top of the mounting strip. The lower mold is fixedly connected to the support column and located on top of the support column.
3. The automotive tailpipe bulging mold as described in claim 1, characterized in that, The support assembly includes a support frame, a hydraulic telescopic rod, a pressure seat, and guide rods. The support frame is fixedly connected to the base and located at the top of the base. The hydraulic telescopic rod is fixedly connected to the support frame and passes through the support frame. The pressure seat is fixedly connected to the hydraulic telescopic rod and located at the bottom of the hydraulic telescopic rod. There are two guide rods, each fixedly connected to the pressure seat and passing through the support frame.
4. The automotive tailpipe bulging mold as described in claim 3, characterized in that, The support assembly further includes a lead screw sleeve, a fixing screw, and a fixing plate. There are two lead screw sleeves, which are fixedly connected to the pressure seat and located in the middle of the pressure seat. There are two fixing screws, which are threadedly connected to the lead screw sleeves and pass through the pressure seat. There are two fixing plates, which are rotatably connected to the fixing screws and located inside the pressure seat.
5. The automotive tailpipe bulging mold as described in claim 1, characterized in that, The adjustment assembly includes an adjustment screw, a movable seat, a mounting plate, and a surrounding seat. There are two adjustment screws, each rotatably connected to the base and passing through it. There are multiple movable seats, each threadedly connected to one of the adjustment screws and located outside the screw. There are two mounting plates, each fixedly connected to one of the movable seats and located on top of it. There are also two surrounding seats, each fixedly connected to one of the mounting plates and located on top of it.
Citation Information
Patent Citations
Car tail pipe bulging die utensil
CN205463957U