Stamping die for air reservoir

Abstract

The utility model provides a stamping die for an air reservoir, and relates to the field of air reservoir processing, the stamping die comprises a stamping table (10), supports (20), a top plate (30), a lifting table (40), a first fastening assembly, an upper die (60), a second fastening assembly and a lower die (80), the supports (20) are respectively arranged on two sides of the end face of the stamping table (10), the top plate (30) is arranged on the inner sides of the top ends of the two supports (20), and the lifting table (40) is arranged on the lower side of the middle of the top plate (30) through a hydraulic cylinder (31); the first fastening assembly comprises a first rotating disc (51) and a plurality of first clamping mechanisms. The upper die (60) is arranged on the bottom face of the lifting table (40) and fixed through the first clamping mechanisms. The second fastening assembly comprises a second rotating disc (71) and a plurality of second clamping mechanisms, and the lower die (80) is arranged on the end face of the punching table (10) and fixed through the second clamping mechanisms. According to the stamping die, rapid replacement between dies is facilitated, and the dies can be stably positioned.

Description

TECHNICAL FIELD

[0001] The utility model relates to air reservoir processing technical field, concretely relates to a stamping die for air reservoir. BACKGROUND

[0002] In the automobile brake system, the air reservoir is a very important accessory, which mainly stores the gas compressed by the air compressor to achieve the effects of energy storage, filtering, pressure stabilization and temperature reduction, thereby ensuring the good operation of the automobile brake performance. At present, the various parts of the air reservoir are mainly obtained through the stamping die, that is, the die is closed between the upper die and the lower die through the press, and then the stamping forming of the air reservoir parts is completed. Chinese patent document CN218015250U discloses a continuous stamping die, which is provided with a first spring, a second spring, a buffer pad, a third spring and a limiting block, etc. It can effectively buffer the force during continuous stamping, reduce the destructive effect on the stamping die, and improve the service life of the stamping die. However, in order to stamp different sizes and shapes of air reservoir parts, it is usually necessary to replace the upper die and the lower die on the same stamping device (if multiple stamping devices are designed according to different sizes and shapes of air reservoir parts, it is not only space-consuming and wasteful of land space, but also high in equipment cost). The stamping lower die in the continuous stamping die is arranged in the cavity through the second spring, which is not convenient for replacing the stamping lower die. The stamping upper die is arranged in the middle part of the bottom surface of the moving plate, which is also not convenient for replacing the stamping upper die, thereby causing long time consumption for replacing the upper die and the lower die when stamping parts of different sizes and shapes, resulting in low efficiency of the entire stamping stage. At the same time, the stamping lower die in the continuous stamping die is arranged in the cavity through the second spring and the third spring, and the stamping lower die is prone to deviation due to the extrusion force of the stamping upper die during the stamping process, thereby affecting the closing precision of the stamping upper die and the stamping lower die, causing uneven thickness and stamping defects of the stamped parts, and increasing the rejection rate of the stamped parts. SUMMARY

[0003] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a stamping die for air reservoir, which not only facilitates the quick replacement between the upper die and the lower die to adapt to the stamping of parts of different shapes and / or sizes, but also can stably position the upper die and the lower die to avoid deviation between the upper die and the lower die during the stamping process and increase the rejection rate.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A punch die for air cylinder, comprising a punch table, a support, a top plate, a lifting table, a first fastening assembly, an upper die, a second fastening assembly and a lower die, the support is arranged on both sides of the end face of the punch table, and the top plate is arranged on the inner side of the top end of the two supports, the lifting table is arranged on the lower side of the middle part of the top plate through a hydraulic cylinder; the first fastening assembly comprises a first rotary disc and a plurality of first clamping mechanisms, the first rotary disc is rotationally arranged on the end face of the lifting table and coaxially arranged with the lifting table, a through hole is formed in the middle part of the first rotary disc corresponding to the hydraulic cylinder, and the plurality of first clamping mechanisms are uniformly distributed on the lifting table around the central axis of the first rotary disc; the upper die is arranged on the bottom surface of the lifting table and fixed through the first clamping mechanism; the second fastening assembly comprises a second rotary disc and a plurality of second clamping mechanisms, the second rotary disc is rotationally arranged on the bottom surface of the punch table and coaxially arranged with the punch table, and the plurality of second clamping mechanisms are uniformly distributed on the punch table around the central axis of the second rotary disc; and the lower die is arranged on the end face of the punch table and fixed through the second clamping mechanism.

[0006] Based on the further optimization of the above scheme, the support is arranged at the four corners of the outer circle of the bottom surface of the punch table, which is used for placing the entire punch table on the ground.

[0007] Based on the further optimization of the above scheme, the sliding block is fixedly arranged on the two sides of the lifting table corresponding to the support, the vertical slot is formed in the side surface of the side of the two supports close to the lifting table and corresponding to the sliding block, and the sliding block is slidingly connected in the corresponding vertical slot, so that the stable lifting of the lifting table is realized; the sliding block and the bottom of the corresponding vertical slot are connected through the first spring, so as to play a buffering role in the die closing process.

[0008] Based on the further optimization of the above scheme, the first clamping mechanism comprises a first sliding rod, a first clamping block and a first positioning pin, the first rotary disc is provided with a first arc-shaped slot corresponding to the first clamping mechanism, the lifting table is provided with a first horizontal slot corresponding to the first clamping mechanism, the first sliding rod penetrates the first arc-shaped slot and the first horizontal slot from top to bottom in sequence and is fixedly connected with the first clamping block slidingly arranged on the bottom surface of the lifting table at the bottom end, the first spring slot is formed in the side surface of the side of the first clamping block close to each other, the first positioning pin is slidingly arranged in the first spring slot and the end of the first positioning pin away from each other is connected with the corresponding first spring slot through the second spring; the first boss is arranged in the middle part of the bottom surface of the lifting table, the first clamping block is arranged on the top surface of the upper die corresponding to the first boss, and the first positioning slot is formed in the side wall of the upper die corresponding to the first positioning pin.

[0009] Based on the further optimization of the above scheme, the second clamping mechanism comprises a second sliding rod, a second clamping block and a second positioning pin, the second rotating disc is provided with a second arc-shaped slot corresponding to the second clamping mechanism, the stamping table is provided with a second horizontal slot corresponding to the second clamping mechanism, the second sliding rod penetrates through the second horizontal slot and the second arc-shaped slot from top to bottom, and the bottom end of the second sliding rod is fixedly connected with the second clamping block which is slidingly arranged on the end surface of the stamping table; the second clamping block is provided with a second spring slot on the side surface which is close to each other, the second positioning pin is slidingly arranged in the second spring slot, and the end of the second positioning pin which is far away from each other is connected with the corresponding second spring slot through the third spring; the second boss is arranged in the middle of the top surface of the stamping table, the second clamping slot is arranged in the bottom surface of the lower die corresponding to the second boss, and the second positioning slot is arranged in the side wall of the lower die corresponding to the second positioning pin.

[0010] Based on the further optimization of the above scheme, the end of the first sliding rod on the upper side of the first rotating disc and the end of the second sliding rod on the lower side of the second rotating disc are respectively fixedly provided with a limiting block.

[0011] Based on the further optimization of the above scheme, the outer circle of the first rotating disc and the second rotating disc is uniformly provided with a fixed hole around the middle axis thereof, the lifting table is provided with a through hole corresponding to the fixed hole of the first rotating disc, and the stamping table is provided with a through hole corresponding to the fixed hole of the second rotating disc.

[0012] The following are the technical effects possessed by the utility model:

[0013] The first rotating disc and the second rotating disc are rotated to control the first clamping mechanism to move on the lifting table and the second clamping mechanism to move on the stamping table, so that the upper die is fixed relative to the lifting table and the lower die is fixed relative to the stamping table, the upper die and the lower die are convenient to replace, different structures or sizes of parts can be stamped out, relative deviation and misalignment between the upper die and the lower die in the stamping process are avoided, the stamping precision is ensured, and part defects caused by misalignment between the upper die and the lower die are avoided. Meanwhile, the lifting table is arranged to provide a connection and control base for the first rotating disc and the first clamping mechanism, and to push the upper die to ascend and descend, so that the upper die can move up and down together with the lifting table after being fixed, subsequent repositioning is avoided, and the stamping process is smooth and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the stamping die in the utility model embodiment (i.e., embodiment 1).

[0015] Figure 2 It is a structure schematic view of the stamping die in the utility model embodiment (i.e., embodiment 1). Figure 1 It is an A-A sectional view of the stamping die.

[0016] Figure 3 It is a structure schematic view of the stamping die in the utility model embodiment (i.e., embodiment 1).Figure 1 BB-direction sectional view.

[0017] Figure 4 This is a schematic diagram of the stamping die in another embodiment of the present invention (i.e., embodiment 2).

[0018] Among them, 10 is the stamping table; 11 is the support leg; 20 is the bracket; 30 is the top plate; 31 is the hydraulic cylinder; 40 is the lifting platform; 41 is the slider; 42 is the first spring; 51 is the first turntable; 510 is the first arc groove; 521 is the first slide rod; 522 is the first clamping block; 523 is the first positioning pin; 5230 is the second spring; 60 is the upper mold; 71 is the second turntable; 710 is the second arc groove; 721 is the second slide rod; 722 is the second clamping block; 723 is the second positioning pin; 7230 is the third spring; 80 is the lower mold; 81 is the top block; 810 is the fourth spring; 82 is the top rod; 83 is the rectangular frame; 830 is the guide rod; 84 is the cam; 91 is the pin; and 92 is the fixing hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1:

[0021] A stamping die for a gas storage cylinder includes a stamping table 10, supports 20, a top plate 30, a lifting platform 40, a first fastening assembly, an upper die 60, a second fastening assembly, and a lower die 80. Supports 11 are respectively provided at the four corners of the outer ring of the bottom surface of the stamping table 10 for placing the entire stamping table 10 on the ground. (Simultaneously, to achieve buffering and pressure relief between the supports 11 and the ground during the stamping process, rubber pads are provided at the bottom of the supports 11, and the rubber pads have anti-slip textures on the ground.) Supports 20 are respectively provided on both sides of the end face of the stamping table 10, and a top plate 30 is provided on the inner side of the top of the two supports 20 (e.g., ...). Figure 1 As shown, the top plate 30 and the stamping table 10 are parallel to each other. A lifting platform 40 is installed on the lower side of the middle of the top plate 30 via a hydraulic cylinder 31 (the hydraulic cylinder 31 can adopt a conventional structure in this field). Slider blocks 41 are fixedly installed on both sides of the lifting platform 40 with corresponding brackets. Two brackets 20 are provided on the side of the lifting platform 40 with vertical slots corresponding to the sliders 41. The sliders 41 are slidably engaged in the corresponding vertical slots (in conjunction with...). Figure 1 and Figure 2 As shown), thus achieving stable lifting of the lifting platform 40; the slider 41 is connected to the bottom of the corresponding vertical groove by a first spring 42 (as shown). Figure 1 As shown in the figure, this serves as a buffer during the mold closing process.

[0022] The first fastening assembly includes a first turntable 51 and multiple sets of first clamping mechanisms. The first turntable 51 is rotatably mounted on the end face of the lifting platform 40 and is coaxially arranged with the lifting platform 40 (for example, multiple mounting blocks are evenly arranged around its own central axis on the bottom surface of the first turntable 51, located between the through hole and the first arc-shaped groove 510; the number of mounting blocks is generally not less than three; a first annular groove is opened on the end face of the lifting platform 40 corresponding to the mounting blocks; the bottom of the mounting blocks slides and engages in the first annular groove). A through hole is opened in the middle of the first turntable 51 corresponding to the hydraulic cylinder 31 (to avoid interference between the rotation of the first turntable 51 and the lifting of the hydraulic cylinder 31). Multiple sets of first clamping mechanisms are evenly distributed on the lifting platform 40 around the central axis of the first turntable 51 (the number of first clamping mechanisms is generally not less than five sets, such as...). Figure 2 As shown in the figure, this embodiment uses 6 sets, including a first slide rod 521, a first clamping block 522 and a first positioning pin 523. The first turntable 51 has a first arc-shaped groove 510 corresponding to the first clamping mechanism, and the lifting platform 40 has a first horizontal groove corresponding to the first clamping mechanism. The first slide rod 521 passes through the first arc-shaped groove 510 and the first horizontal groove from top to bottom, and the bottom end of the first slide rod 521 is fixedly connected to the first clamping block 522 which is slidably set on the bottom surface of the lifting platform 40 (that is, the outer wall of the first slide rod 521 is slidably connected to the inner wall of the first arc-shaped groove 510 and the first horizontal groove respectively, and the top surface of the first clamping block 522 is slidably connected to the bottom surface of the lifting platform 40). A first spring groove is opened on the side of the first clamping blocks 522 that are close to each other. The first positioning pin 523 is slidably set in the first spring groove, and the ends of the first positioning pins 523 that are far apart from each other are connected to the corresponding first spring groove through the second spring 5230. The upper mold 60 is set on the bottom surface of the lifting platform 40 and fixed by the first clamping mechanism; a first boss (e.g., ...) is provided in the middle of the bottom surface of the lifting platform 40. Figure 1 As shown), the top surface of the upper mold 60 has a first slot corresponding to the first boss, and the side wall of the upper mold 60 has a first positioning groove corresponding to the first positioning pin 523 (that is, the first positioning groove is evenly distributed on the outer wall of the upper mold 60 around the central axis).

[0023] The second fastening assembly includes a second turntable 71 and multiple sets of second clamping mechanisms. The second turntable 71 is rotatably mounted on the bottom surface of the stamping table 10 and is coaxially arranged with the stamping table 10 (for example, multiple lifting blocks are evenly arranged around its own central axis on the top surface of the second turntable 71 within multiple second arc-shaped grooves 710, and the number of lifting blocks is generally not less than three. The bottom surface of the stamping table 10 has a second annular groove corresponding to the lifting blocks, and the top of the lifting block slides and engages in the second annular groove). Multiple sets of second clamping mechanisms are evenly distributed on the stamping table 10 around the central axis of the second turntable 71 (the number of second clamping mechanisms is generally not less than five sets, such as...). Figure 3As shown, the second clamping mechanism in the embodiment comprises six groups, including the second slide rod 721, the second clamping block 722 and the second positioning pin 723. The second turntable 71 is provided with a second arc-shaped slot 710 corresponding to the second clamping mechanism, and the punching table 10 is provided with a second horizontal slot corresponding to the second clamping mechanism. The second slide rod 721 penetrates the second horizontal slot and the second arc-shaped slot 710 from top to bottom, and the bottom end of the second slide rod 721 is fixedly connected with the second clamping block 722 which is slidingly arranged at the end surface of the punching table 10 (i.e., the outer wall of the second slide rod 721 is slidingly connected with the inner walls of the second horizontal slot and the second arc-shaped slot 710, and the bottom surface of the second clamping block 722 is slidingly connected with the end surface of the punching table 10). The side surface of the second clamping block 722 away from each other is provided with a second spring slot, and the second positioning pin 723 is slidingly arranged in the second spring slot and connected with the corresponding second spring slot through the third spring 7230. The lower die 80 is arranged at the end surface of the punching table 10 and fixed by the second clamping mechanism. The second boss is arranged at the top surface of the punching table 10 (as shown in Figure 1 As shown, the bottom surface of the lower die 80 is provided with a second clamping groove corresponding to the second boss, and the side wall of the lower die 80 is provided with a second positioning slot corresponding to the second positioning pin 723 (i.e., the second positioning slots are uniformly distributed on the outer wall of the lower die 80 around the central axis thereof).

[0024] The end portion of the first slide rod 521 located on the upper side of the first turntable 51 and the end portion of the second slide rod 721 located on the lower side of the second turntable 71 are respectively fixedly provided with a limiting block (as shown in Figure 1 As shown, the outer ring of the first turntable 51 and the second turntable 71 is uniformly provided with a fixing hole 92 around the central axis thereof (for combination Figure 1 、 Figure 2 、 Figure 3 As shown, the number of fixing holes 92 on the same turntable is not less than 30, see Figure 2 、 Figure 3 As shown, the number of fixing holes 92 on the same turntable is not less than 30, see Figure 1 As shown, the longitudinal section of the bolt 91 is a tapered structure with a large diameter at the upper part and a small diameter at the lower part.

[0025] Working principle:

[0026] In use, firstly, the first slot and first positioning groove of the upper mold 60 are machined according to the first boss and the first positioning pin 523, respectively; second slot and second positioning groove of the lower mold 80 are machined according to the second boss and the second positioning pin 723. Then, the first slot of the upper mold 60 is engaged with the first boss, and the first turntable 51 is started to rotate (the first turntable 51 can be driven to rotate by a motor gear mechanism set on the end face of the lifting seat 40, and the outer ring of the first turntable 51 is fitted with an external gear ring). The first turntable 51 drives the first clamping block 522 to move closer to the upper mold 60 through the first slide rod 521, thereby causing the first positioning pin 523 to be inserted into the corresponding first positioning groove, realizing the clamping and fixing of the upper mold 60. Afterwards, the pins 91 are inserted from top to bottom into the fixing holes of the first turntable 51 and the corresponding through holes on the lifting seat 40 to realize the rotation hard limit of the first turntable 51. The lower mold 80 is positioned and clamped and fixed on the end face of the stamping table 10 in the same way. Then, stamping is performed.

[0027] If it is necessary to replace the upper mold 60 and the lower mold 80, simply pull out the pins 91 in sequence, and release the upper mold 60 and the lower mold 80 by rotating the first turntable 51 and the second turntable 71.

[0028] Example 2:

[0029] As a further optimization of the present invention, based on the solution of Embodiment 1, in order to facilitate unloading after stamping, refer to Figure 4 As shown: A material unloading mechanism is provided on the stamping table 10. The material unloading mechanism includes a top block 81, a top rod 82, a rectangular frame 83, and a cam 84. The top block 81 is located on the upper side of the second boss, and the outer diameter of the top block 81 is smaller than the outer diameter of the second boss. The top rod 82 is coaxially arranged on the bottom surface of the top block 81. The end of the top rod 82 away from the top block 81 passes through the second boss and the stamping table 10 in sequence. The bottom end of the top rod 82 is located on the lower side of the stamping table 10 and is fixedly connected to the rectangular frame 83. A rotating cam 84 is arranged inside the rectangular frame 83. A fourth spring 810 is arranged between the top block 81 and the second boss and on the outer ring of the top rod 81. A sliding hole is opened in the lower mold 80 corresponding to the top block 81. The sliding hole connects the forming groove of the lower mold 80 with the second slot.

[0030] Example 3:

[0031] As a further optimization of the present utility model, based on the scheme of embodiment 2, guide rods 830 are respectively provided on the top surface of the rectangular frame 83 and on both sides of the top rod 82. The bottom surface of the stamping table 10 is provided with guide grooves corresponding to the guide rods 830. The guide rods 830 are slidably engaged in the guide grooves, thereby guiding the up and down sliding of the rectangular frame 83 and ensuring the lifting stability of the rectangular frame 83; the cam 84 is controlled by a rotating shaft provided on the bottom surface of the stamping table 10.

[0032] Embodiment 4:

[0033] As further optimization of the utility model scheme, on the basis of the scheme of embodiment 1 or embodiment 2, the end face of the punching table 10 and the bottom face of the lifting table 40 are respectively fixedly provided with rubber layers, and the rubber layers are provided with through grooves corresponding to the first horizontal groove and the second horizontal groove and holes corresponding to the through holes, so as to realize the buffering connection between the punching table 10 and the lower die 80 and between the lifting table 40 and the upper die 60.

Claims

1. A punch die for air reservoirs, characterized by: The punch table, the support, the top plate, the lifting platform, the first fastening assembly, the upper die, the second fastening assembly and the lower die, the two sides of the end surface of the punch table are respectively provided with supports, and the inner sides of the top ends of the two supports are provided with a top plate, and the lower side of the middle part of the top plate is provided with a lifting platform through a hydraulic cylinder; the first fastening assembly comprises a first rotary table and a plurality of first clamping mechanisms, the first rotary table is rotationally arranged on the end surface of the lifting platform and coaxially arranged with the lifting platform, a through hole is formed in the middle part of the first rotary table corresponding to the hydraulic cylinder, and the plurality of first clamping mechanisms are uniformly distributed on the lifting platform around the central axis of the first rotary table; the upper die is arranged on the bottom surface of the lifting platform and fixed through the first clamping mechanism; the second fastening assembly comprises a second rotary table and a plurality of second clamping mechanisms, the second rotary table is rotationally arranged on the bottom surface of the punch table and coaxially arranged with the punch table, and the plurality of second clamping mechanisms are uniformly distributed on the punch table around the central axis of the second rotary table; the lower die is arranged on the end surface of the punch table and fixed through the second clamping mechanism.

2. A punch die for air reservoirs according to claim 1, characterized in that: The four corners of the outer circle of the bottom surface of the punch table are respectively provided with supporting legs.

3. The punch die for air cylinder according to claim 1, characterized in that: The two sides of the lifting platform are fixedly provided with sliding blocks corresponding to the supports, vertical grooves are formed in the side surface of the side of the two supports close to the lifting platform and corresponding to the sliding blocks, and the sliding blocks are slidingly connected in the corresponding vertical grooves.

4. The punch die for air cylinder according to claim 1, characterized in that: The first clamping mechanism comprises a first sliding rod, a first clamping block and a first positioning pin, a first arc-shaped groove is formed in the first rotary table corresponding to the first clamping mechanism, and a first horizontal groove is formed in the lifting platform corresponding to the first clamping mechanism, the first sliding rod penetrates the first arc-shaped groove and the first horizontal groove from top to bottom in sequence, and the bottom end of the first sliding rod is fixedly connected with the first clamping block slidingly arranged on the bottom surface of the lifting platform, a first spring groove is formed in the side surface of the first clamping block close to each other, and the first positioning pin is slidingly arranged in the first spring groove and connected with the corresponding first spring groove through the second spring.

5. A punch die for air reservoirs according to claim 4, characterised in that: The second clamping mechanism comprises a second sliding rod, a second clamping block and a second positioning pin, a second arc-shaped groove is formed in the second rotary table corresponding to the second clamping mechanism, and a second horizontal groove is formed in the punch table corresponding to the second clamping mechanism, the second sliding rod penetrates the second horizontal groove and the second arc-shaped groove from top to bottom in sequence, and the bottom end of the second sliding rod is fixedly connected with the second clamping block slidingly arranged on the end surface of the punch table, a second spring groove is formed in the side surface of the second clamping block close to each other, and the second positioning pin is slidingly arranged in the second spring groove and connected with the corresponding second spring groove through the third spring.

6. A punch die for air reservoirs according to claim 5, characterised in that: The end part of the first sliding rod on the upper side of the first rotary table and the end part of the second sliding rod on the lower side of the second rotary table are respectively fixedly provided with limiting blocks.

7. The punch die for air cylinder according to claim 5, wherein: The outer circle of the first rotary table and the second rotary table and around the central axis thereof are uniformly provided with fixed holes, and the lifting platform and the punch table are provided with through holes corresponding to the fixed holes of the first rotary table and the second rotary table, and the through holes and the corresponding fixed holes are connected through a bolt.

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