Stamping die for precise forming of high-precision light-weight automobile fastener

Abstract

The utility model relates to the technical field of stamping dies, and particularly discloses a stamping die for precisely forming a high-precision lightweight automobile fastener, which comprises a fixed die, a fixed frame is fixed at one end of the fixed die, and a stamping mechanism for stamping a workpiece is mounted on the inner wall of the fixed frame. A buffer mechanism for buffering the mold is fixed on the upper surface of the fixed mold; the stamping mechanism comprises a driving motor, the driving motor is fixed to the inner wall of the fixing frame through a bolt, a worm is fixed to a power output shaft of the driving motor, a worm gear is meshed with the outer surface of the worm, and a transmission rod is fixed to the side wall of the worm gear. Through the arranged stamping mechanism, the movable die can be driven by the driving motor to move towards the fixed die, a workpiece is stamped, the die does not need to be driven by a hydraulic cylinder, external hydraulic driving equipment does not need to be used, the structure is simple, and then the use cost of the die is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die for precision molding of high-precision lightweight automobile fasteners. Background Art

[0002] The stamping die for precision forming of high-precision lightweight automotive fasteners is an indispensable key part in automobile manufacturing. It is of great significance to improve the quality, precision and lightweight level of fasteners. With the rapid development of the automobile industry, especially the rise of new energy vehicles, the requirements for automotive fasteners are getting higher and higher. High-precision lightweight automotive fasteners can not only improve the overall performance of the car, such as reducing fuel consumption, increasing driving range, enhancing safety performance, etc., but also meet the precision and efficiency requirements in the automobile manufacturing process.

[0003] The existing stamping dies are all fixed and installed by bolts during assembly, which is inconvenient to install and inconvenient to disassemble for replacement and maintenance;

[0004] The existing patent (Announcement No.: CN215786226U) discloses a stamping die for automotive fasteners, which includes a frame, a work surface fixedly connected to the frame, a lower die arranged on the work surface, a door frame fixedly connected to the work surface, a stamping cylinder fixedly connected to the door frame, an upper die correspondingly arranged above the lower die, the upper die connected to the piston rod end of the stamping cylinder through an adapter plate, the upper die is detachably connected to the adapter plate, the lower die is detachably connected to the work surface, and a clamping assembly for fixing the lower die is arranged on the work surface. It fits the upper die with the adapter plate, uses a pressing plate to press the upper die, and realizes the fixation of the upper die. The upper die and the lower die are easy to disassemble and assemble, which facilitates the maintenance and replacement of the upper die and the lower die.

[0005] In response to the above problems, the solution provided by the existing patent facilitates the maintenance and replacement of the upper mold and the lower mold by fitting the upper mold with the adapter plate, but it is driven by a hydraulic cylinder when in use, and the hydraulic cylinder requires external hydraulic equipment to drive, resulting in a more complex overall mold structure and higher production costs. Summary of the invention

[0006] The purpose of the utility model is to provide a stamping die for precision forming of high-precision lightweight automotive fasteners, which can drive a movable die to move toward a fixed die through a driving motor to stamp a workpiece, and the die does not need to be driven by a hydraulic cylinder or an external hydraulic drive device, and has a simple structure, thereby effectively reducing the use cost of the die to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: a stamping die for precision molding of high-precision lightweight automotive fasteners, comprising a fixed die, one end of which is fixed with a fixed frame, the inner wall of which is mounted with a stamping mechanism for stamping a workpiece, and the upper surface of the fixed die is fixed with a buffer mechanism for buffering the die;

[0008] The stamping mechanism includes a driving motor, which is fixed to the inner wall of the fixing frame by bolts. A worm is fixed to the power output shaft of the driving motor. A worm is meshed with a worm wheel on the outer surface of the worm. A driving rod is fixed to the side wall of the worm wheel. A fixed bearing is sleeved on the outer surface of the driving rod. A fixing ring is fixed to the outer wall of the fixing bearing. A connecting piece is fixed to the outer wall of the fixing ring.

[0009] Preferably, a movable rod is hinged at the lower end of the connecting member, and a movable mold is fixed to the lower end of the movable rod.

[0010] Preferably, four positioning rods are fixed to the upper surface of the fixed mold, and the upper ends of the four positioning rods are plugged and connected with positioning tubes fixed to the movable mold.

[0011] Preferably, the buffer mechanism comprises a mounting rod, and four mounting rods are provided. The four mounting rods are all fixed on the upper surface of the fixed mold, and the outer surfaces of the four mounting rods are all sleeved with buffer springs.

[0012] Preferably, the upper ends of the four mounting rods are plugged and connected to connecting pipes fixed on the movable mold.

[0013] Preferably, a fixing plate is fixed to the side wall of the fixing frame.

[0014] Preferably, two guide rods fixed to the movable mold are penetrated inside the fixed plate, and the inner wall of the fixed plate is inlaid with linear bearings sleeved on the outer surfaces of the movable rods.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the punching mechanism, the driving motor can drive the movable die to move toward the fixed die to punch the workpiece, and the die does not need to be driven by a hydraulic cylinder or an external hydraulic drive device, and has a simple structure, thereby effectively reducing the use cost of the die;

[0017] 2. Through the buffer mechanism, the connecting pipe and the mounting rod are plugged in, so that the connecting pipe squeezes the buffer spring, thereby causing the buffer spring to compress and move, thereby playing a certain buffering role and improving the stability of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 3 For the utility model Figure 2 A magnified view of middle;

[0022] Figure 4 It is a schematic diagram of the half-section structure of the connecting pipe of the utility model.

[0023] Description of reference numerals:

[0024] 1. Fixed mold; 2. Fixed frame; 3. Driving motor; 31. Worm; 32. Worm wheel; 33. Transmission rod; 34. Fixed bearing; 35. Fixed ring; 36. Connecting piece; 37. Movable rod; 38. Movable mold; 4. Positioning rod; 5. Positioning tube; 6. Mounting rod; 61. Buffer spring; 62. Connecting tube; 7. Fixed plate; 8. Guide rod; 9. Linear bearing. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a technical solution:

[0027] See also Figures 1 to 4 A stamping die for precision molding of high-precision lightweight automotive fasteners, comprising a fixed die 1, a fixed frame 2 is fixed at one end of the fixed die 1, a stamping mechanism for stamping a workpiece is installed on the inner wall of the fixed frame 2, and a buffer mechanism for buffering the die is fixed on the upper surface of the fixed die 1;

[0028] The stamping mechanism includes a driving motor 3, which is fixed to the inner wall of the fixed frame 2 by bolts. A worm 31 is fixed to the power output shaft of the driving motor 3. A worm 31 is meshed with a worm wheel 32 on the outer surface of the worm 31. A transmission rod 33 is fixed to the side wall of the worm wheel 32. A fixed bearing 34 is sleeved on the outer surface of the transmission rod 33. A fixed ring 35 is fixed to the outer wall of the fixed bearing 34. A connecting piece 36 is fixed to the outer wall of the fixed ring 35. A movable rod 37 is hinged at the lower end of the connecting piece 36. A movable mold 38 is fixed to the lower end of the movable rod 37. Four positioning rods 4 are fixed to the upper surface of the fixed mold 1. The upper ends of the four positioning rods 4 are all plugged and connected with positioning tubes 5 fixed to the movable mold 38.

[0029] By adopting the above technical scheme, before using the stamping die for precision forming of high-precision lightweight automotive fasteners, the fixed die 1 is first installed in a suitable position, and then the workpiece to be processed is placed on the fixed die 1, and the driving motor 3 on the fixed frame 2 drives the worm 31 to engage the worm wheel 32 to rotate, thereby driving the transmission rod 33 to move, and with the cooperation of the fixed bearing 34, the fixed ring 35 drives the connecting piece 36 to move, thereby driving the hinged movable rod 37 to move vertically, so that the movable die 38 is lowered, and the movable die 38 moves toward the fixed die 1 to stamp the workpiece, and the die does not need to be driven by a hydraulic cylinder, and does not need to use external hydraulic drive equipment, and has a simple structure, thereby effectively reducing the use cost of the die.

[0030] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the buffer mechanism includes a mounting rod 6, and four mounting rods 6 are provided. The four mounting rods 6 are all fixed on the upper surface of the fixed mold 1. The outer surfaces of the four mounting rods 6 are all sleeved with buffer springs 61. The upper ends of the four mounting rods 6 are all plugged and connected with connecting pipes 62 fixed on the movable mold 38. A fixing plate 7 is fixed to the side wall of the fixing frame 2. Two guide rods 8 fixed to the movable mold 38 are penetrated inside the fixing plate 7. The inner wall of the fixing plate 7 is inlaid with a linear bearing 9 sleeved on the outer surface of the movable rod 37.

[0031] By adopting the above technical scheme, the guide rod 8 arranged on the fixed plate 7 can play a guiding role, thereby reducing the deviation of the movable mold 38 when it moves. The linear bearing 9 arranged on the movable rod 37 can ensure the smoothness of the movement of the movable rod 37, thereby improving the wear resistance. When the movable mold 38 moves downward, the positioning tube 5 and the positioning rod 4 are plugged in, thereby playing a positioning role, and the connecting tube 62 and the mounting rod 6 are plugged in. At this time, the connecting tube 62 squeezes the buffer spring 61, thereby causing the buffer spring 61 to compress and move, thereby playing a certain buffering role, thereby improving the stability of the mold.

[0032] Working principle: Place the workpiece to be processed on the fixed mold 1, and drive the worm 31 to engage the worm wheel 32 to rotate through the driving motor 3 on the fixed frame 2, thereby driving the transmission rod 33 to move. With the cooperation of the fixed bearing 34, the fixed ring 35 drives the connecting piece 36 to move, thereby driving the hinged movable rod 37 to move vertically, so that the movable mold 38 is lowered, and the movable mold 38 moves toward the fixed mold 1 to punch the workpiece. The guide rod 8 arranged on the fixed plate 7 can play a guiding role, thereby reducing the deviation of the movable mold 38 when it moves. The linear bearing 9 arranged on the movable rod 37 can ensure the smoothness of the movement of the movable rod 37, thereby improving the wear resistance. When the movable mold 38 moves downward, the positioning tube 5 and the positioning rod 4 are plugged in, thereby playing a positioning role, and the connecting tube 62 and the mounting rod 6 are plugged in. At this time, the connecting tube 62 squeezes the buffer spring 61, thereby causing the buffer spring 61 to compress and move, thereby playing a certain buffering role.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A stamping die for precision molding of high-precision lightweight automotive fasteners, comprising a fixed die (1), characterized in that: A fixing frame (2) is fixed to one end of the fixed die (1), a punching mechanism for punching a workpiece is installed on the inner wall of the fixed frame (2), and a buffer mechanism for buffering the die is fixed to the upper surface of the fixed die (1); The punching mechanism comprises a driving motor (3), the driving motor (3) being fixed to the inner wall of the fixing frame (2) by means of bolts, a worm (31) being fixed to the power output shaft of the driving motor (3), a worm wheel (32) being meshed on the outer surface of the worm (31), a transmission rod (33) being fixed to the side wall of the worm wheel (32), a fixed bearing (34) being sleeved on the outer surface of the transmission rod (33), a fixed ring (35) being fixed to the outer wall of the fixed bearing (34), and a connecting piece (36) being fixed to the outer wall of the fixed ring (35).

2. A stamping die for precision molding of high-precision lightweight automotive fasteners according to claim 1, characterized in that: A movable rod (37) is hingedly connected to the lower end of the connecting piece (36), and a movable mold (38) is fixed to the lower end of the movable rod (37).

3. A stamping die for precision molding of high-precision lightweight automotive fasteners according to claim 2, characterized in that: Four positioning rods (4) are fixed to the upper surface of the fixed mold (1), and the upper ends of the four positioning rods (4) are plugged and connected to positioning tubes (5) fixed to the movable mold (38).

4. A stamping die for precision molding of high-precision lightweight automotive fasteners according to claim 1, characterized in that: The buffer mechanism comprises a mounting rod (6), four mounting rods (6) are provided, the four mounting rods (6) are all fixed on the upper surface of the fixed mold (1), and the outer surfaces of the four mounting rods (6) are all sleeved with a buffer spring (61).

5. A stamping die for precision molding of high-precision lightweight automotive fasteners according to claim 4, characterized in that: The upper ends of the four mounting rods (6) are plugged into and connected to a connecting pipe (62) fixed on the movable mold (38).

6. A stamping die for precision molding of high-precision lightweight automotive fasteners according to claim 2, characterized in that: A fixing plate (7) is fixed to the side wall of the fixing frame (2).

7. A stamping die for precision molding of high-precision lightweight automotive fasteners according to claim 6, characterized in that: Two guide rods (8) fixed to the movable mold (38) are penetrated inside the fixed plate (7), and linear bearings (9) sleeved on the outer surfaces of the movable rods (37) are embedded on the inner wall of the fixed plate (7).

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