Stamping die for automobile door handle

Abstract

The invention discloses an automobile door handle stamping die which comprises an upper die, a lower die and a die head and further comprises a fixing frame fixedly arranged at the bottom of the upper die. The movable frame is fixedly arranged on the die head and is detachably connected with the die head through a plurality of quick assembly mechanisms; the dismounting mechanism is mounted on the movable frame and is used for releasing the connection between each quick mounting mechanism and the movable frame; by the adoption of the technical scheme, in daily use, when the die head is installed, the movable frame is arranged on the outer side of the fixed frame in a sleeving mode, the die head is lifted upwards, the fixed frame and the movable frame are connected through the quick installation mechanisms, and then installation of the die head is completed; when the die head needs to be dismounted, the dismounting mechanism is operated to release the connection between each quick dismounting mechanism and the movable frame, so that the fixation between the movable frame and the fixed frame is released, the die head can be taken down, the buffer mechanism can absorb instantaneous impact force generated when the die head is in contact with the lower die, and the service life of the die is prolonged.

Description

Technical Field

[0001] The 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 for manufacturing automobile door handles. The stamping die is installed on a press. When the slide of the press moves up and down, the upper die and the lower die of the die interact with each other to apply pressure to the automobile door handle sheet placed therebetween. 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, in which the punch is mounted on the bottom of the upper die by screws to facilitate quick replacement of the punch, but has the following defects:

[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 the 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 on the mold head and is detachably connected to the movable frame through a plurality of quick-install mechanisms;

[0010] 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;

[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 is provided on the inner wall of the movable frame;

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

[0015] The flip block has its lower end 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 arranged at the bottom of the inner wall of the movable frame, and the top is connected with each outer groove;

[0019] A lifting ring, whose movable sleeve is arranged in a 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 and lowering of the lifting ring.

[0021] Lift controls include:

[0022] A plurality of vertical grooves are respectively arranged 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, and the front side wall and the rear side wall are both provided with oblique grooves, and the front end is connected to a screw rod rotatably connected to the side wall of the outer ring groove through a screw hole;

[0025] A plurality of transmission blocks are respectively slidably installed in each vertical slot and the corresponding inclined slot, and are all fixedly connected with 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, and its bottom end abuts against the top surface of the mold head;

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

[0029] A plurality of friction damping 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 lifted and lowered into heat energy.

[0030] The buffer mechanism also includes:

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

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

[0033] The friction cushioning pair includes:

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

[0035] The elliptical disc has an eccentric portion rotatably mounted between a pair of side plates via a rotating shaft;

[0036] An elastic pressure piece is arranged on the side wall of the fixed block through a mounting groove, and an outer end thereof extends out of the mounting groove to abut against the peripheral wall of the elliptical disk;

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

[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 are concentric with the rotating shaft;

[0042] A pair of racks are fixedly mounted 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 annular groove, a sliding frame, a plurality of oblique grooves, a plurality of transmission blocks and a screw rod, the installation of the die head can be completed by simply setting the movable frame outside the fixed frame and lifting the die head upwards. The fixation of the die head can be released by rotating the screw rod. The die head is fixed by means of a clamping method, and the fixing effect of the die head will not be affected by vibration, thereby ensuring the stamping accuracy of the die head when it is used for a long time;

[0045] 2. Through the arrangement of a floating shell, a fixed block, a buffer spring, a plurality of side plates, a plurality of elliptical disks, a plurality of mounting grooves, a plurality of sliding plates, a plurality of preload springs, a plurality of gears and a plurality of 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 surface of the die head when in contact with the surface of the lower die, 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 a stamping die for a car door handle in an embodiment of the present application;

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

[0048] Figure 3 for Figure 2 Schematic diagram of the local 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-loading 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-oblique 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 drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0052] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other 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 through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0054] Embodiment 1:

[0055] like Figures 1 to 3 As shown, an embodiment of the present application provides a stamping die for a car door handle, comprising an upper die 1, a lower die 2 and a die head 3, and also 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 plurality 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 abuts against the top surface of the die head 3.

[0056] Furthermore, the quick-loading 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 installed at 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 member 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 side wall and the rear side wall, and a screw rod 95 rotatably connected to the side wall of the outer ring groove 92 through a screw hole transmission connection 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 fixedly connected 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 block 63 to flip, so that the free end of each flip 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 block 63. Each torsion spring 64 releases elastic potential energy to push each flip block 63 to flip, and the free end of each flip block 63 is inserted into the corresponding outer groove 61, so that the movable frame 5 cannot descend, 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 disassembling the mold head 3, the screw rod 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 block 63 to flip, so that the free end of each flip block 63 is separated from the corresponding outer groove 61 and returns to the corresponding inner groove 62. The mold head 3 and the movable frame 5 move 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 rod 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 corresponding inclined groove 94 and the lower end of the vertical groove 91.

[0061] Embodiment 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 end 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 on the bottom surface of the upper mold 1, and a buffer spring is installed at the bottom through a groove; a plurality of friction damping pairs 10 are arranged on the peripheral wall of the fixed block 82 at intervals along the circumferential direction, 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 arranged 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 cushioning 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 with 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, so that each pre-stressed spring 105 is 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 variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out 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 reverse 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 the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A stamping die for a car door handle, comprising an upper die (1), a lower die (2) and a die head (3), characterized in that: Also includes: A fixed frame (4) fixedly arranged at the bottom of the upper mold (1); A movable frame (5) is fixedly mounted 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), and its bottom surface abuts against the top surface of the mold head (3).

2. The automobile door handle stamping die according to claim 1, characterized in that: The quick-install mechanism (6) comprises: An outer groove (61) is arranged on the inner wall of the movable frame (5); An inner groove (62) is arranged on the outer side wall of the fixing frame (4); A flip block (63), the lower end of which is movably mounted on the bottom of the outer groove (61) via a hinge shaft, and the upper end of which can extend into the inner groove (62); A torsion spring (64) is sleeved on the hinge shaft and is used to apply an outward turning force to the turning block (63).

3. The automobile door handle stamping die according to claim 2, characterized in that: The disassembly mechanism (7) comprises: An annular groove (71) is arranged at the bottom of the inner wall of the movable frame (5), and the top thereof is connected to each outer groove (61); A lifting ring (72) is movably sleeved in the annular groove (71), and a slope (73) is provided on the top of the inner wall; A lifting control member (9) is used to control the lifting and lowering of the lifting ring (72).

4. The automobile door handle stamping die according to claim 3, characterized in that: The lifting control member (9) comprises: A plurality of vertical grooves (91) are respectively arranged on the front outer wall and the rear outer wall of the movable frame (5); An outer ring groove (92) is arranged 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 side wall and the rear side wall, and a screw rod (95) 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) 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).

5. The automobile door handle stamping die according to claim 1, characterized in that: 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 abutting against the top surface of the mold head (3); A fixed block (82) is fixedly mounted on the bottom surface of the upper mold (1), and a buffer spring is installed on the bottom through a recessed 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 or lowered into heat energy.

6. The automobile door handle stamping die according to claim 5, characterized in that: The buffer mechanism (8) further comprises: A plurality of vertical through grooves (83) are respectively arranged 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 wall of the fixing frame (4) and are slidably inserted into corresponding vertical through slots (83).

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

8. The automobile door handle stamping die according to claim 7, 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 arranged between the inner side wall and the inner end of the mounting groove (103).

9. The automobile door handle stamping die according to claim 7, characterized in that: The transmission member comprises: 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 fixedly mounted on the corresponding inner side walls of the movable frame (5) and mesh with the gears (106) respectively.

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