A stamping die for automobile door handle

Abstract

The present application discloses a stamping die for automobile door handles, comprising an upper die, a lower die and a die head, and further comprising a fixed frame, which is fixedly arranged at the bottom of the upper die; a movable frame, which is fixedly arranged on the die head and is detachably connected to the movable frame through a number of quick-install mechanisms; a disassembly mechanism, which is installed on the movable frame and is used to release the connection between each quick-install mechanism and the movable frame; a buffer mechanism, which is installed in the fixed frame and has its bottom surface abutted against the top surface of the die head. By adopting the above technical solution, in daily use, when installing the die head, the movable frame is sleeved onto the outside of the fixed frame, and the die head is lifted upward, and the fixed frame and the movable frame are connected to each other through each quick-install mechanism, thus completing the installation of the die head. When the die head needs to be disassembled, the disassembly mechanism is operated to release the connection between each quick-install mechanism and the movable frame, so that the fixation between the movable frame and the fixed frame is released, and the die head can be removed. The buffer mechanism can absorb the instantaneous impact force generated when the die head contacts the lower die, thereby extending the service life of the die.

Description

Technical Field

[0001] The present invention relates to the field of automobile parts manufacturing dies, and in particular to an automobile door handle stamping die. Background Art

[0002] The automobile door handle stamping die is an important process equipment used to manufacture automobile door handles. The stamping die is installed on a press. When the slide of the press moves up and down, the upper and lower dies of the die interact with each other, applying pressure to the automobile door handle sheet placed between them. Under the action of this pressure, the material separates or plastically deforms, thereby obtaining the required automobile door handle parts.

[0003] For example, the Chinese utility model patent with publication number CN217912495U discloses a stamping die with a replaceable stamping die head. The punch is mounted on the bottom of the upper die by screws to facilitate quick replacement of the punch. However, the following defects exist:

[0004] 1. When the punch performs stamping operation on the upper die, the impact vibration generated will cause the screws to loosen, affecting the stamping accuracy of the punch on the workpiece;

[0005] 2. The instantaneous impact force at the moment of mold closing is large, which will cause deformation of the punch and lower mold surface over a long period of time, affecting the service life of the mold. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides a stamping die for an automobile door handle, comprising an upper die, a lower die, and a die head, and further comprising:

[0008] A fixed frame, which is fixed on the bottom of the upper mold;

[0009] A movable frame is fixed to the mold head and is detachably connected to the movable frame through a number of quick-install mechanisms;

[0010] A disassembly mechanism, which is mounted on the movable frame and is used to release the connection between each quick-install mechanism and the movable frame;

[0011] The buffer mechanism is installed in the fixed frame, and its bottom surface abuts against the top surface of the mold head.

[0012] The quick-release mechanism includes:

[0013] an outer groove, which is provided on the inner side wall of the movable frame;

[0014] an inner groove, which is provided on the outer side wall of the fixed frame;

[0015] Flip the card block, its lower end is movably mounted on the bottom of the outer groove through a hinge shaft, and its upper end can extend into the inner groove;

[0016] The torsion spring is sleeved on the hinge shaft and is used to apply an outward turning force to the turning block.

[0017] The disassembly mechanism includes:

[0018] An annular groove is provided at the bottom of the inner wall of the movable frame, and the top thereof is connected to each outer groove;

[0019] The lifting ring is movably sleeved in the ring groove, and the top of the inner wall is provided with an inclined surface;

[0020] The lifting control component is used to control the lifting of the lifting ring.

[0021] Lift controls include:

[0022] A plurality of vertical slots are respectively provided on the front outer wall and the rear outer wall of the movable frame;

[0023] An outer ring groove is arranged around the outer peripheral wall of the movable frame;

[0024] The sliding frame is slidably mounted in the outer ring groove, with inclined grooves provided on the front and rear side walls, and a screw rod rotatably connected to the side wall of the outer ring groove via a screw hole at the front end;

[0025] A plurality of transmission blocks are respectively slidably installed in each vertical slot and the corresponding inclined slot, and are all fixedly connected to the lifting ring.

[0026] The buffer mechanism includes:

[0027] The floating shell has an open top and is installed in a floating manner in the fixed frame, with its bottom end abutting against the top surface of the mold head;

[0028] The fixed block is fixed on the bottom surface of the upper mold, and a buffer spring is installed on the bottom through a groove;

[0029] A plurality of friction and shock-absorbing pairs are arranged at intervals along the circumferential direction on the peripheral wall of the fixed block, and are used to convert part of the mechanical energy generated when the floating shell is raised and lowered into heat energy.

[0030] The buffer mechanism also includes:

[0031] A plurality of vertical through slots are respectively provided on the front side arm and the rear side wall of the floating shell;

[0032] After passing through the side walls of the fixed frame, a plurality of insertion rods are slidably inserted into corresponding vertical through slots.

[0033] The friction and shock-absorbing pair includes:

[0034] A pair of side plates fixedly mounted on the side walls of the fixed block;

[0035] An elliptical disc, the eccentric portion of which is rotatably mounted between a pair of side plates via a rotating shaft;

[0036] An elastic pressure member is arranged on the side wall of the fixed block through the mounting groove, with the outer end extending out of the mounting groove and abutting against the peripheral wall of the elliptical disk;

[0037] The transmission member is used to connect the elliptical disk with the movable frame through transmission.

[0038] The elastic pressure piece includes:

[0039] The sliding plate is slidably installed in the installation groove, and a plurality of pre-compression springs are arranged between the inner side wall and the inner end of the installation groove.

[0040] Transmission parts include:

[0041] A pair of gears are symmetrically fixed on the two side walls of the elliptical disk and concentric with the rotating shaft;

[0042] A pair of racks are fixed on the corresponding inner side walls of the movable frame and mesh with the gears respectively.

[0043] The beneficial effects of the present invention are as follows:

[0044] 1. Through the arrangement of a fixed frame, a movable frame, a plurality of outer grooves, a plurality of inner grooves, a plurality of flip blocks, a plurality of torsion springs, annular grooves, a lifting ring, a plurality of vertical grooves, an outer ring groove, a sliding frame, a plurality of oblique grooves, a plurality of transmission blocks and a screw, the mold head can be installed by simply putting the movable frame outside the fixed frame and lifting the mold head upward. The mold head can be released by turning the screw. The mold head is fixed by a clamping method, and the fixing effect of the mold head will not be affected by vibration, thereby ensuring the stamping accuracy of the mold head during long-term use;

[0045] 2. Through the arrangement of a floating shell, a fixed block, a buffer spring, several side plates, several elliptical disks, several mounting slots, several sliding plates, several preload springs, several gears and several racks, the mechanical energy generated by the impact is converted into elastic potential energy, internal energy and thermal energy, thereby reducing the impact force borne by the die head surface and the lower die surface when they contact, and improving the service life of the die head and the lower die. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a front view of the stamping die for the automobile door handle in an embodiment of the present application;

[0047] Figure 2 This is a cross-sectional view of the internal structure of the automobile door handle stamping die in an embodiment of the present application;

[0048] Figure 3 for Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0049] Reference numerals

[0050] 1-upper die, 2-lower die, 3-die head, 4-fixed frame, 5-movable frame, 6-quick-install mechanism, 61-outer groove, 62-inner groove, 63-flip block, 64-torsion spring, 7-disassembly mechanism, 71-ring groove, 72-lifting ring, 73-inclined surface, 8-buffer mechanism, 81-floating shell, 82-fixed block, 83-vertical through groove, 84-insertion rod, 9-lifting control part, 91-vertical groove, 92-outer ring groove, 93-sliding frame, 94-inclined groove, 95-screw, 96-transmission block, 10-friction cushioning pair, 101-side plate, 102-elliptical disk, 103-mounting groove, 104-sliding plate, 105-preload spring, 106-gear, 107-rack DETAILED DESCRIPTION

[0051] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0052] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0053] The automobile door handle stamping die provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0054] Example 1:

[0055] like Figures 1 to 3 As shown, an embodiment of the present application provides a stamping die for an automobile door handle, comprising an upper die 1, a lower die 2 and a die head 3, and further comprising a fixed frame 4, which is fixed to the bottom of the upper die 1; a movable frame 5, which is fixed to the die head 3 and is detachably connected to the movable frame 5 through a number of quick-install mechanisms 6; a disassembly mechanism 7, which is installed on the movable frame 5 and is used to release the connection between each quick-install mechanism 6 and the movable frame 5; a buffer mechanism 8, which is installed in the fixed frame 4, and the bottom surface of which abuts against the top surface of the die head 3.

[0056] Furthermore, the quick-install mechanism 6 includes an outer groove 61, which is arranged on the inner wall of the movable frame 5; an inner groove 62, which is arranged on the outer wall of the fixed frame 4; a flip block 63, the lower end of which is movably mounted on the bottom of the outer groove 61 through a hinge shaft, and the upper end can extend into the inner groove 62; a torsion spring 64, which is sleeved on the hinge shaft and is used to apply an outward flipping force to the flip block 63.

[0057] Furthermore, the disassembly mechanism 7 includes an annular groove 71, which is arranged at the bottom of the inner wall of the movable frame 5 and the top is connected to the outer grooves 61; a lifting ring 72, which is movably sleeved in the annular groove 71 and has an inclined surface 73 on the top of the inner wall; and a lifting control part 9, which is used to control the lifting and lowering of the lifting ring 72.

[0058] Furthermore, the lifting control member 9 includes a plurality of vertical grooves 91, which are respectively arranged on the front outer wall and the rear outer wall of the movable frame 5; an outer ring groove 92, which is arranged around the outer peripheral wall of the movable frame 5; a sliding frame 93, which is slidably installed in the outer ring groove 92, and has inclined grooves 94 on the front and rear side walls, and a screw 95 that is rotatably connected to the side wall of the outer ring groove 92 through a screw hole at the front end; a plurality of transmission blocks 96, which are respectively slidably installed in each vertical groove 91 and the corresponding inclined groove 94, and are all fixed to the lifting ring 72.

[0059] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when installing the mold head 3, the movable frame 5 is aligned with the fixed frame 4, and the mold head 3 is lifted upward so that the movable frame 5 is sleeved on the outside of the fixed frame 4 and continues to rise. In this process, the top of the movable frame 5 pushes each flip card block 63 to flip, so that the free end of each flip card block 63 enters the inner groove 62, and each torsion spring 64 stores elastic potential energy until each outer groove 61 rises to correspond to each flip card block 63. Each torsion spring 64 releases elastic potential energy to push each flip card block 63 to flip, and the free end of each flip card block 63 is inserted into the corresponding outer groove 61, so that the movable frame 5 cannot fall, and the top surface of the mold head 3 contacts the buffer mechanism 8, completing the installation of the mold head 3. When the upper mold 1 approaches the lower mold 2, the bottom end of the mold head 3 contacts the lower mold 2, and the generated impact is transmitted to the buffer mechanism 8 and absorbed by the buffer mechanism 8;

[0060] When the mold head 3 is disassembled, the screw 95 is rotated to make the sliding frame 93 slide along the outer ring groove 92 toward the front end of the movable frame 5, so that each transmission block 96 slides from the lower end of the corresponding inclined groove 94 to the upper end of the corresponding inclined groove 94. Correspondingly, each transmission block 96 rises in the corresponding vertical groove 91, driving the lifting ring 72 to rise in the ring groove 71 until the top surface of the lifting ring 72 contacts the top surface of the ring groove 71. In this process, the top of the lifting ring 72 pushes each flip card block 63 to flip, so that the free end of each flip card block 63 disengages from the corresponding outer groove 61 and returns to the corresponding inner groove 62. The mold head 3 and the movable frame 5 move in the direction away from the upper mold 1 under the action of gravity. After each movable frame 5 is separated from the corresponding fixed frame 4, the screw 95 is rotated in the opposite direction to make the sliding frame 93 slide along the outer ring groove 92 toward the rear end of the movable frame 5, and each transmission block 96 moves to the lower end of the corresponding inclined groove 94 and vertical groove 91.

[0061] Example 2:

[0062] like Figures 2 to 3 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the buffer mechanism 8 includes a floating shell 81, the top of which is open and floatingly installed in the fixed frame 4, and the bottom end abuts against the top surface of the mold head 3; a fixed block 82, which is fixed to the bottom surface of the upper mold 1 and has a buffer spring installed at the bottom through a groove; a plurality of friction damping pairs 10 are circumferentially arranged on the peripheral wall of the fixed block 82 at intervals, and are used to convert part of the mechanical energy generated when the floating shell 81 is raised and lowered into heat energy.

[0063] Furthermore, the buffer mechanism 8 also includes a plurality of vertical through slots 83 , which are respectively provided on the front side arm and the rear side wall of the floating shell 81 ; and a plurality of insertion rods 84 , which pass through the side wall of the fixed frame 4 and are respectively slidably inserted into the corresponding vertical through slots 83 .

[0064] Furthermore, the friction and shock-absorbing pair 10 includes a pair of side plates 101, which are fixed on the side walls of the fixed block 82; an elliptical disk 102, whose eccentric part is rotatably installed between the pair of side plates 101 through a rotating shaft; an elastic pressure member, which is arranged on the side wall of the fixed block 82 through a mounting groove 103, and the outer end extends out of the mounting groove 103 and abuts against the peripheral wall of the elliptical disk 102; a transmission member, which is used to connect the elliptical disk 102 to the movable frame 5 through transmission.

[0065] Furthermore, the elastic pressure member includes a sliding plate 104 , which is slidably installed in the installation groove 103 , and a plurality of pre-compression springs 105 are provided between the inner side wall and the inner end of the installation groove 103 .

[0066] Furthermore, the transmission member includes a pair of gears 106 symmetrically fixed on the two side walls of the elliptical disk 102 and concentric with the rotating shaft; a pair of racks 107 fixed on the corresponding inner side walls of the movable frame 5 and meshed with each gear 106 respectively.

[0067] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the impact generated when the mold head 3 contacts the lower mold 2 is transmitted from the mold head 3 to the floating shell 81, causing the floating shell 81 to slide in the fixed frame 4, and the buffer spring absorbs part of the impact and converts the impact force it bears into elastic potential energy and internal energy. The racks 107 move together with the floating shell 81, and at the same time cooperate with the gears 106 to drive the elliptical disks 102 to rotate. Since the elliptical disk 102 is installed between a pair of side plates 101 through eccentric rotation of the rotating shaft, the elliptical disk 102 will squeeze the sliding plate 104 to slide into the installation groove 103 when it rotates, causing the pre-stressed springs 105 to be compressed and shortened, thereby increasing the friction between the peripheral wall of the elliptical disk 102 and the corresponding sliding plate 104, and converting the mechanical energy generated by the floating of the floating shell 81 caused by the impact force into heat energy.

[0068] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0069] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A stamping die for automobile door handles, comprising an upper die (1), a lower die (2) and a die head (3), characterized in that: Also includes: A fixed frame (4) fixedly mounted on the bottom of the upper mold (1); A movable frame (5) is fixed on the mold head (3) and is detachably connected to the movable frame (5) via a plurality of quick-install mechanisms (6); a disassembly mechanism (7), which is mounted on the movable frame (5) and is used to release the connection between each of the quick-install mechanisms (6) and the movable frame (5); A buffer mechanism (8) is installed in the fixed frame (4), with its bottom surface abutting against the top surface of the mold head (3); The quick-install mechanism (6) comprises: An outer groove (61) is provided on the inner side wall of the movable frame (5); An inner groove (62) provided on the outer side wall of the fixing frame (4); A flip block (63) whose lower end is movably mounted on the bottom of the inner groove (62) via a hinge shaft, and whose upper end can extend into the outer groove (61); a torsion spring (64), which is sleeved on the hinge shaft and is used to apply an outward turning force to the turning block (63); The disassembly mechanism (7) comprises: An annular groove (71) is provided at the bottom of the inner wall of the movable frame (5), and the top thereof is communicated with each outer groove (61); A lifting ring (72) is movably sleeved in the annular groove (71), and a top of the inner wall is provided with an inclined surface (73); A lifting control member (9) for controlling the lifting of the lifting ring (72); The lifting control member (9) comprises: A plurality of vertical slots (91) are respectively provided on the front outer wall and the rear outer wall of the movable frame (5); An outer ring groove (92) is provided around the outer peripheral wall of the movable frame (5); A sliding frame (93) is slidably mounted in the outer ring groove (92), with inclined grooves (94) provided on the front and rear side walls, and a screw (95) rotatably connected to the side wall of the outer ring groove (92) via a screw hole at the front end; A plurality of transmission blocks (96) are respectively slidably mounted in the vertical slots (91) and the corresponding inclined slots (94), and are all fixedly connected to the lifting ring (72); The buffer mechanism (8) comprises: A floating shell (81) with an open top end, which is floatingly mounted in the fixed frame (4) and has a bottom end in contact with the top surface of the mold head (3); A fixed block (82) is fixed on the bottom surface of the upper mold (1), and a buffer spring is installed on the bottom through a groove; A plurality of friction damping pairs (10) are arranged at intervals along the circumferential direction on the peripheral wall of the fixed block (82) and are used to convert part of the mechanical energy generated when the floating shell (81) is raised and lowered into heat energy.

2. The automobile door handle stamping die according to claim 1, characterized in that: The buffer mechanism (8) further comprises: A plurality of vertical through slots (83) are respectively provided on the front side arm and the rear side wall of the floating shell (81); A plurality of insertion rods (84) pass through the side walls of the fixed frame (4) and are slidably inserted into corresponding vertical through slots (83).

3. The automobile door handle stamping die according to claim 1, characterized in that: The friction and shock-absorbing pair (10) comprises: A pair of side plates (101) fixedly mounted on the side walls of the fixed block (82); An elliptical disk (102), the eccentric portion of which is rotatably mounted between a pair of side plates (101) via a rotating shaft; an elastic pressure member, which is arranged on the side wall of the fixed block (82) through a mounting groove (103), and whose outer end extends out of the mounting groove (103) and abuts against the peripheral wall of the elliptical disk (102); A transmission member is used to connect the elliptical disk (102) to the movable frame (5) in a transmission manner.

4. The automobile door handle stamping die according to claim 3, characterized in that: The elastic pressure member comprises: The sliding plate (104) is slidably mounted in the mounting groove (103), and a plurality of pre-compression springs (105) are provided between the inner side wall and the inner end of the mounting groove (103).

5. The automobile door handle stamping die according to claim 3, characterized in that: The transmission member includes: A pair of gears (106) are symmetrically fixed on the two side walls of the elliptical disk (102) and are concentric with the rotating shaft; A pair of racks (107) are fixed on the corresponding inner side walls of the movable frame (5) and respectively mesh with the gears (106).

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