Stamping die with stamping die head convenient to replace

Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die with a stamping die head convenient to replace. Comprising a base, a support, a lifting electric telescopic rod, an upper die, a punching head, a lower die and a mounting assembly, the punching head is arranged below the lower die, the mounting assembly comprises a mounting disc, two inserting blocks, two pull rods, two first springs and two abutting blocks, the mounting disc is fixedly connected with the upper die, the two inserting blocks are both fixedly connected with the punching head, and the two inserting blocks are fixedly connected with the lower die. The two inserting blocks are matched with the corresponding inserting holes respectively, the two inserting blocks are provided with two fixing grooves, the two abutting blocks are movably connected with the installation disc, each pull rod is fixedly connected with the corresponding abutting block and penetrates through the groove, and the two ends of each first spring are fixedly connected with the installation disc and the corresponding pull rod respectively. Through the arrangement of the structure, the stamping head can be rapidly assembled and disassembled, manpower and time are greatly reduced, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die which is convenient for replacing a stamping die head. Background Art

[0002] The metal stamping die is a machine for stamping sheet metal parts. It has the advantages of high production efficiency and short production cycle. After the existing stamping die is stamped, the stamped hardware products are taken out, and then the parts are continued to be placed, and continuous work is achieved through the punching head. However, the punching head is prone to wear after long-term use. The worn punching head greatly reduces the stamping quality of the workpiece, seriously affecting the stamping quality of the stamped parts. In addition, when the existing stamping die is working, once the punching head is damaged after long-term work, it is not convenient to replace it, and it is troublesome to disassemble, which greatly reduces the stamping efficiency of the workpiece.

[0003] In the prior art patent CN211915189U discloses a metal stamping die which is convenient for replacing the punch head. The punch head is fixedly screwed and assembled on the mounting plate by tightening bolts, so that the punch head can be quickly replaced and disassembled, and the operation is convenient. At the same time, the plug-in block can be clamped in the limit slot, and the limit plate can be clamped in the positioning groove. In this way, the horizontal degree of freedom of the punch head can be limited by the mounting plate, thereby ensuring the stability of the clamping of the mounting plate and the punch head and preventing the punch head from shaking.

[0004] However, in the above method, a plurality of fastening bolts are required to fix the punch head, which requires much manpower and time, and the punch cannot be installed and disassembled quickly. Utility Model Content

[0005] The utility model aims to provide a stamping die which is convenient for replacing the stamping die head, thereby solving the problem that the existing stamping die head needs to be fixed with multiple fastening bolts, which requires much manpower and time and cannot be quickly installed and disassembled.

[0006] To achieve the above-mentioned purpose, the utility model adopts a stamping die that is easy to replace the stamping die head, including a base, a bracket, a lifting electric telescopic rod, an upper die, a stamping head, a lower die and a mounting assembly, the bracket and the lower die are both arranged above the base, the lifting electric telescopic rod is fixedly connected to the bracket, the upper die is connected to the output end of the lifting electric telescopic rod, the stamping head is arranged below the lower die, the mounting assembly includes a mounting plate, two plug-in blocks, two pull rods, two first springs and two abutting blocks, the mounting plate is fixedly connected to the upper die, and is located at the upper die Below the said mounting plate, the said mounting plate has a cavity, two grooves and two plug-in holes, the said two plug-in blocks are fixedly connected to the said punching head, and are both located on the outer side wall of the said punching head, and the said two plug-in blocks are respectively adapted to the said corresponding plug-in holes, the said two plug-in blocks have two fixed grooves, the said two abutting blocks are movably connected to the said mounting plate, and are respectively adapted to the said corresponding fixed grooves and the said grooves, each said pull rod is respectively fixedly connected to the said corresponding abutting block, and respectively passes through the said grooves, and the two ends of each said first spring are respectively fixedly connected to the said mounting plate and the said corresponding said pull rod.

[0007] Wherein, the installation assembly also includes two guide arc blocks, and the two guide arc blocks are respectively fixedly connected to the corresponding abutting blocks and are respectively located on the outer side walls of the abutting blocks.

[0008] Wherein, the installation assembly further comprises two protective covers, both of which are detachably connected to the installation plate and are respectively attached to the outer side walls of the installation plate.

[0009] Wherein, the stamping die for facilitating replacement of the stamping die head further comprises two groups of pre-pressing components, and the two groups of pre-pressing components are both connected to the mounting plate and are both located below the mounting plate.

[0010] Among them, the pre-compression assembly includes a telescopic rod, a second spring and a compression block, one end of the telescopic rod is fixedly connected to the mounting plate, the compression block is fixedly connected to the other end of the telescopic rod, and the second spring is arranged in the telescopic rod.

[0011] Wherein, the pre-pressing assembly further comprises a rubber pad, which is fixedly connected to the pressing block and is located below the pressing block.

[0012] The utility model discloses a stamping die which is convenient for replacing a stamping die head. When replacing the stamping die in the upper die, the two pull rods on the outer side of the stamping die are pulled respectively on the outer side of the mounting plate, and each pull rod drives the supporting block to move out of the fixed groove of the plug-in block respectively. Then the stamping die is rotated 90 degrees in the cavity so that the two plug-in blocks on the outer side of the stamping die correspond to the two plug-in holes on the mounting plate, and then the stamping die is taken out of the cavity for replacement. When installing on the stamping die, the two pull rods on the outer side of the mounting plate are pulled first ... It will drive the supporting block into the groove of the mounting disk, and then the two plug-in blocks on the outside of the punch head are inserted into the two plug-in holes of the mounting disk, so that the punch head enters the cavity of the mounting disk, and then the punch head is rotated 90 degrees in the cavity, so that the two plug-in blocks are respectively away from the plug-in holes. At this time, the pull rod is released, and the force of the first spring is used to make the supporting block enter the fixing groove of the plug-in block, so as to fix the punch head. Through the above method, the punch head can be quickly installed and removed, which greatly reduces manpower and time and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0015] Figure 2 It is a partial structural diagram of the first embodiment of the utility model.

[0016] Figure 3 It is a partial internal structure cross-sectional view of the first embodiment of the utility model.

[0017] Figure 4 The utility model Figure 3 A magnified view of the local structure at A.

[0018] Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0019] Figure 6 It is a partial internal structure cross-sectional view of the second embodiment of the utility model.

[0020] 101-base, 102-bracket, 103-lifting electric telescopic rod, 104-upper die, 105-punch head, 106-lower die, 107-mounting plate, 108-plug-in block, 109-pull rod, 110-first spring, 111-holding block, 112-guide arc block, 113-protective cover, 114-cavity, 115-groove, 116-plug-in hole, 117-fixing groove, 201-telescopic rod, 202-second spring, 203-pressing block, 204-rubber pad. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] First embodiment

[0023] See also Figure 1 to Figure 4 ,in Figure 1 is a schematic diagram of the overall structure of the first embodiment, Figure 2 is a schematic diagram of a part of the structure of the first embodiment, Figure 3 is a cross-sectional view of part of the internal structure of the first embodiment, Figure 4 yes Figure 3 A magnified view of the local structure at A.

[0024] The utility model provides a stamping die for convenient replacement of a stamping die head: comprising a base 101, a bracket 102, a lifting electric telescopic rod 103, an upper die 104, a stamping head 105, a lower die 106 and an installation assembly, wherein the installation assembly comprises a mounting plate 107, two plug-in blocks 108, two pull rods 109, two first springs 110, two abutting blocks 111, two guide arc blocks 112 and two protective covers 113. The above-mentioned solution solves the problem that the existing stamping die head needs to be fixed with multiple fastening bolts, which requires more manpower and time, and the stamping cannot be quickly installed and disassembled.

[0025] According to this specific embodiment, the bracket 102 and the lower die 106 are both arranged above the base 101, the lifting electric telescopic rod 103 is fixedly connected to the bracket 102, the upper die 104 is connected to the output end of the lifting electric telescopic rod 103, and the punching head 105 is arranged below the lower die 106. The extension of the lifting electric telescopic rod 103 can drive the punching head 105 at the bottom of the upper die 104 to move downward, and the cooperation of the upper die 104 and the lower die 106 can ensure the stamping quality of the punching head 105.

[0026] The mounting plate 107 is fixedly connected to the upper die 104 and is located below the upper die 104. The mounting plate 107 has a cavity 114, two grooves 115 and two plug holes 116. The two plug blocks 108 are fixedly connected to the punch head 105 and are located on the outer side wall of the punch head 105. The two plug blocks 108 are respectively matched with the corresponding plug holes 116. The two plug blocks 108 have two fixed grooves 117. The two abutment blocks 111 are movably connected to the mounting plate 107 and are respectively connected to the corresponding fixed grooves 117. The two ends of each first spring 110 are respectively fixedly connected to the mounting plate 107 and the corresponding pull rod 109. When the punch head 105 is replaced in the upper die 104, the two pull rods 109 are respectively pulled on the outside of the mounting plate 107. Each pull rod 109 drives the support block 111 to move out of the fixed groove 117 of the plug-in block 108, and then the punch head 105 is replaced in the upper die 104. The punch head 105 is rotated 90 degrees in the cavity 114 so that the two plug-in blocks 108 on the outside of the punch head 105 correspond to the two plug-in holes 116 on the mounting plate 107, and then the punch head 105 is taken out of the cavity 114 for replacement; when installing the punch head 105, first pull the two pull rods 109 on the outside of the mounting plate 107, each of the pull rods 109 will drive the abutment block 111 into the groove 115 of the mounting plate 107, and then insert the two plug-in blocks 108 on the outside of the punch head 105 into the mounting plate 107. The two plug-in holes 116 are inserted into the punch head 105, and the punch head 105 enters the cavity 114 of the mounting plate 107. The punch head 105 is then rotated 90 degrees in the cavity 114, so that the two plug-in blocks 108 are respectively away from the plug-in holes 116. At this time, the pull rod 109 is released, and the force of the first spring 110 is used to make the supporting block 111 enter the fixing groove 117 of the plug-in block 108, so as to fix the punch head 105. Through the above method, the punch head 105 can be quickly installed and removed, which greatly reduces manpower and time and is easy to operate.

[0027] Secondly, the two guide arc blocks 112 are fixedly connected to the corresponding supporting blocks 111 and are respectively located on the outer walls of the supporting blocks 111. The guide arc blocks 112 have arc surfaces, and the supporting blocks 111 can easily enter the fixed groove 117 of the plug-in block 108 through the guide arc blocks 112.

[0028] At the same time, the two protective covers 113 are detachably connected to the mounting plate 107 and are respectively attached to the outer wall of the mounting plate 107. The pull rod 109 is covered and protected on the outer side of the mounting plate 107 by the protective covers 113 to avoid exposure and accidental touch.

[0029] When replacing the punch head 105 in the upper die 104, first remove the protective cover 113 on the outside of the mounting plate 107, then pull the two pull rods 109 on the outside of the mounting plate 107 respectively, each of the pull rods 109 drives the abutment block 111 to move out of the fixing groove 117 of the plug-in block 108, and then rotate the punch head 105 90 degrees in the cavity 114 so that the two plug-in blocks 108 on the outside of the punch head 105 correspond to the two plug-in holes 116 of the mounting plate 107, and then take the punch head 105 out of the cavity 114 for replacement; when installing on the punch head 105, first pull the two pull rods 109 on the outside of the mounting plate 107, each of the pull rods 109 will drive the abutment block 111 to move out of the fixing groove 117 of the plug-in block 108. 1 enters the groove 115 of the mounting plate 107, and then the two plug-in blocks 108 on the outer side of the punch head 105 are inserted into the two plug-in holes 116 of the mounting plate 107, so that the punch head 105 enters the cavity 114 of the mounting plate 107, and then the punch head 105 is rotated 90 degrees in the cavity 114, so that the two plug-in blocks 108 are respectively away from the plug-in holes 116, and at this time, the pull rod 109 is released, and the force of the first spring 110 is used to make the supporting block 111 enter the fixing groove 117 of the plug-in block 108, and finally the protective cover 113 is used to cover the pull rod 109, so that the punch head 105 is fixed. Through the above method, it is realized that the punch head 105 can be quickly installed and removed, which greatly reduces manpower and time, and is easy to operate.

[0030] Second embodiment

[0031] See also Figure 5 and Figure 6 ,in Figure 5 is a schematic diagram of the overall structure of the second embodiment, Figure 6 It is a cross-sectional view of part of the internal structure of the second embodiment.

[0032] On the basis of the first embodiment, a stamping die for facilitating replacement of a stamping die head of the utility model further comprises two sets of pre-pressing components, wherein the pre-pressing components comprise a telescopic rod 201 , a second spring 202 , a pressing block 203 and a rubber pad 204 .

[0033] The two groups of pre-pressing components are both connected to the mounting plate 107 and are both located below the mounting plate 107. By arranging the pre-pressing components below the upper mold 104, during stamping, the pre-pressing components will first contact the workpiece and pre-press the workpiece, thereby improving stability during the stamping process.

[0034] One end of the telescopic rod 201 is fixedly connected to the mounting plate 107, the clamping block 203 is fixedly connected to the other end of the telescopic rod 201, and the second spring 202 is arranged in the telescopic rod 201. When the workpiece is stamped, the two clamping blocks 203 under the lower die 106 will contact the surface of the workpiece, and each clamping block 203 drives the telescopic rod 201 to be compressed. The second spring 202 is compressed, and the workpiece is pressed on the lower die 106 before being stamped by the punch head 105. Then the punch head 105 moves down to stamp the workpiece. In the above manner, the workpiece can be pre-pressed, which improves the stability during the stamping process.

[0035] The rubber pad 204 is fixedly connected to the pressing block 203 and is located below the pressing block 203 . The rubber pad 204 can increase the friction between the pressing block 203 and the workpiece, and can fix the workpiece more stably.

[0036] When the workpiece is stamped, the two clamping blocks 203 under the lower die 106 will contact the surface of the workpiece, each of the clamping blocks 203 drives the telescopic rod 201 to be compressed, and the second spring 202 is compressed. Before the workpiece is stamped by the punching head 105, the workpiece will be clamped on the lower die 106, and then the punching head 105 moves down to stamp the workpiece; wherein, by arranging the rubber pad 204 under the clamping block 203, the rubber pad 204 can increase the friction between the clamping block 203 and the workpiece, and can fix the workpiece more stably. In the above manner, the workpiece can be pre-pressed, thereby improving the stability during the stamping process.

[0037] The above disclosures are only two preferred embodiments of the present invention, which certainly cannot be used to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A stamping die for convenient replacement of a stamping die head, comprising a base, a bracket, a lifting electric telescopic rod, an upper die, a stamping head and a lower die, wherein the bracket and the lower die are both arranged above the base, the lifting electric telescopic rod is fixedly connected to the bracket, the upper die is connected to the output end of the lifting electric telescopic rod, and the stamping head is arranged below the lower die, characterized in that: It also includes an installation component, which includes an installation disk, two plug-in blocks, two pull rods, two first springs and two supporting blocks. The installation disk is fixedly connected to the upper mold and is located below the upper mold. The installation disk has a cavity, two grooves and two plug-in holes. The two plug-in blocks are fixedly connected to the punch head and are located on the outer side wall of the punch head, and the two plug-in blocks are respectively matched with the corresponding plug-in holes. The two plug-in blocks have two fixed grooves. The two supporting blocks are movably connected to the installation disk and are respectively matched with the corresponding fixed grooves and the grooves. Each pull rod is fixedly connected to the corresponding supporting block and passes through the grooves respectively. The two ends of each first spring are respectively fixedly connected to the installation disk and the corresponding pull rod.

2. The punching die for facilitating replacement of the punching die head according to claim 1, characterized in that: The installation assembly also includes two guide arc blocks, which are fixedly connected to the corresponding abutment blocks and are respectively located on the outer side walls of the abutment blocks.

3. The punching die for facilitating replacement of the punching die head as claimed in claim 2, characterized in that: The installation assembly also includes two protective covers, which are both detachably connected to the installation plate and are respectively attached to the outer side walls of the installation plate.

4. The punching die for facilitating replacement of the punching die head according to claim 1, characterized in that: The stamping die for facilitating replacement of the stamping die head further comprises two groups of pre-pressing components, both of which are connected to the mounting plate and are located below the mounting plate.

5. The punching die for facilitating replacement of the punching die head as claimed in claim 4, characterized in that: The pre-compression assembly includes a telescopic rod, a second spring and a pressing block, one end of the telescopic rod is fixedly connected to the mounting plate, the pressing block is fixedly connected to the other end of the telescopic rod, and the second spring is arranged in the telescopic rod.

6. The punching die for facilitating replacement of the punching die head as claimed in claim 5, characterized in that: The pre-pressing assembly also includes a rubber pad, which is fixedly connected to the pressing block and is located below the pressing block.

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