Front end cover stamping device

Abstract

The utility model provides a front end cover stamping device, and relates to the field of end cover stamping, the front end cover stamping device comprises a stamping table (10), a support (20), a top plate (30), a lifting seat (40), an upper die (50), a lower die (60) and a discharging mechanism, the end face of the stamping table (10) is provided with a boss, and the middle of the lower die (60) is provided with a positioning hole corresponding to the boss; the outer ring of the lower die (60) is sleeved with a mounting ring (61), bolt holes are evenly formed in the mounting ring (61), and fixing holes are correspondingly formed in the end face of the stamping table (10). Top plates (30) are arranged on the two sides of the end face of the stamping table (10) through supports (20), lifting seats (40) are arranged on the lower sides of the top plates (30), and the lifting seats (40) are connected with upper dies (50) through installation assemblies. The discharging mechanism comprises a top plate (71), a top rod (72), a first spring (73), a rectangular frame (74) and a cam (75). The stamping device not only facilitates die replacement, but also can automatically unload stamped products.

Description

TECHNICAL FIELD

[0001] The utility model relates to end cover stamping technical field, concretely relates to a front end cover stamping device. BACKGROUND

[0002] At present, the processing of end cover products in the automobile production process mainly adopts the stamping forming mode belonging to the pressure processing technology. In the stamping forming process, the stamping die is an essential important component; in order to meet the processing needs of end cover products of different sizes and shapes, the existing stamping dies are various, so that the corresponding stamping die is replaced in the production process, thereby adapting to the manufacturing of different products. Chinese patent document CN218425045U discloses a motor end cover processing device, the driving mechanism can make the two sides of the threaded rod rotate at the same time, the threaded sleeve block can move up and down at the same time, and the stability of movement is guaranteed; the installation mechanism is convenient for installing and dismounting the upper die, realizes convenient replacement of the upper die, and realizes stamping processing of motor end covers of different shapes, improves the adaptability. However, the processing device only considers the replacement of the upper die, and does not consider the replacement and fixation of the lower die with the formed groove (the person skilled in the art knows that the stamping die is formed by the cooperation of the upper die and the lower die to form a forming die cavity), which not only affects the stamping precision, but also causes stamping failure and other problems. At the same time, after stamping is completed, the formed product is easy to be clamped in the forming groove of the lower die due to the extrusion force, and it is difficult to take out and unload, thereby increasing the overall time consumption of stamping, affecting the progress of continuous stamping of products, and forcibly taking out the product clamped in the forming groove is also easy to cause deformation and damage of the product, and increase the defective rate of the product. CONTENT OF THE UTILITY MODEL

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a front end cover stamping device, which not only facilitates the replacement of the upper die and the lower die to adapt to the stamping of different products, but also can automatically unload the stamped product to avoid the problem that the product is clamped in the forming groove and is difficult to take out.

[0004] The purpose of the utility model is realized by the following technical scheme:

[0005] The front end cover stamping device comprises a stamping table, a support, a top plate, a lifting seat, an upper die, a lower die and a discharging mechanism, a boss is arranged in the middle of the end face of the stamping table, a positioning hole communicated with the forming groove is arranged in the middle of the lower die corresponding to the boss, and the lower die is positioned and placed on the end face of the stamping table through the clamping of the boss and the through hole; a mounting ring is fixedly arranged on the outer circle of the bottom of the lower die, bolt holes are uniformly arranged on the mounting ring, fixing holes are arranged on the end face of the stamping table corresponding to the bolt holes, and the bolt holes and the fixing holes are connected through fastening bolts; the top plate is arranged on the two sides of the end face of the stamping table through the support, the lifting seat is arranged on the lower side of the top plate and between the supports through a hydraulic cylinder, and the upper die is detachably connected to the lifting seat through a mounting assembly; the discharging mechanism comprises the top plate, a top rod, a first spring, a rectangular frame and a cam, the top plate is coaxially arranged on the upper side of the boss, the top rod is fixedly arranged on the bottom surface of the top plate, one end of the top rod away from the top plate penetrates through the stamping table, the end of the top rod on the lower side of the stamping table is connected with the rectangular frame, the first spring is arranged between the top plate and the boss and on the outer circle of the top rod, and the cam is rotationally arranged on the inner side of the rectangular frame.

[0006] Based on the further optimization of the above scheme, four supporting feet are arranged on the bottom of the stamping table corresponding to the supporting feet, the supporting feet are threadedly connected with the bottom of the stamping table through bolts, and the adjustability and detachability of the supporting feet are ensured.

[0007] Based on the further optimization of the above scheme, the lifting seat is fixedly provided with lifting sliders on the two sides of the support corresponding to the lifting sliders, vertical grooves are arranged on the side surface of the two supports close to each other and corresponding to the lifting sliders, and the lifting sliders are slidingly clamped in the vertical grooves, so that the sliding of the lifting seat is limited, and the stability of the upward and downward movement of the lifting seat is ensured.

[0008] Based on the further optimization of the above scheme, the mounting assembly comprises a conical slider, a second spring and a plurality of fixing mechanisms, a sliding cavity coaxial with the conical slider is arranged in the inner cavity of the lifting seat, the conical slider is slidingly arranged in the sliding cavity and has an isosceles trapezoidal structure with a large diameter at the upper part and a small diameter at the lower part; the top surface of the conical slider and the top surface of the sliding cavity are connected through a plurality of second springs uniformly distributed therebetween; a plurality of fixing mechanisms are uniformly distributed around the central axis of the conical slider and comprise L-shaped connecting rods, positioning sliders, fixing pins and third springs, one end of the L-shaped connecting rod is slidingly connected with the inclined surface of the conical slider, the other end of the L-shaped connecting rod is fixedly connected with the positioning sliders slidingly arranged on the bottom surface of the lifting seat, the lifting seat is provided with a sliding groove corresponding to the L-shaped connecting rod, the positioning sliders are provided with spring grooves on the side surface close to each other, the fixing pins are slidingly arranged in the spring grooves and have ends away from each other and connected with the spring grooves through the third springs, a top block is arranged in the middle of the end face of the upper die, the lifting seat is provided with a through hole communicated with the sliding cavity corresponding to the top block, and the outer wall of the upper die is provided with a fixing groove corresponding to the fixing pin.

[0009] Based on further optimization of the above scheme, the end surface of the top block is provided with clamping splines in the middle, and the bottom surface of the tapered slide is provided with spline grooves in the middle, and the upper die is connected with the tapered slide and rotationally limited by clamping the splines in the spline grooves.

[0010] Based on further optimization of the above scheme, the middle of the positioning slide is provided with a pull rod coaxial with the fixing pin, one end of the pull rod is fixedly connected with the end of the fixing pin close to the third spring, and the other end of the pull rod is fixedly provided with a limiting block after penetrating through the corresponding side wall of the positioning slide; the diameter of the pull rod is smaller than the inner diameter of the third spring, that is, the third spring is arranged outside the pull rod, so that interference between the pull rod and the third spring is avoided.

[0011] Based on further optimization of the above scheme, the cam fixing sleeve is arranged on the outer wall of the rotating shaft, and the two ends of the rotating shaft are rotationally connected with rotating seats fixedly arranged on the bottom surface of the stamping table, so that the positioning and rotation control of the cam are realized.

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

[0013] The application is convenient for dismounting and mounting the lower die on the end surface of the stamping table through the arrangement of the mounting ring and the fastening bolt, and realizes the dismounting and mounting of the upper die on the bottom surface of the lifting seat through the mounting assembly, so that the upper die and the lower die are replaced for different molded products, and the adaptability of the stamping device as a whole is improved; meanwhile, the application realizes the up-down reciprocating movement of the rectangular frame, the ejector rod and the top plate together through the rotation of the cam by the cooperation between the top plate, the ejector rod, the first spring, the rectangular frame and the cam, and then repeatedly vibrates the stamping product in the molded groove, so that the separation between the product and the molded groove and the ejection of the product are completed by vibration, the automatic unloading of the product on the lower die is realized, and the problems of deformation, damage and time-consuming and labor-consuming of the product caused by forced unloading are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the stamping device in the utility model embodiment.

[0015] Figure 2 It is Figure 1 It is the partial enlarged view of A.

[0016] Figure 3 It is Figure 1 It is the B-B sectional view of.

[0017] Figure 4 It is the installation schematic view of the stamping device in the utility model embodiment.

[0018] Wherein, 10, punch table; 11, support foot; 12, rotating seat; 20, support; 30, top plate; 31, hydraulic cylinder; 40, lifting seat; 401, sliding cavity; 402, lifting slider; 41, conical slider; 42, second spring; 431, L-shaped connecting rod; 432, positioning slider; 433, fixing pin; 4330, pull rod; 434, third spring; 50, upper die; 60, lower die; 61, mounting ring; 62, fastening bolt; 71, top plate; 72, ejector pin; 73, first spring; 74, rectangular frame; 740, L-shaped guide rod; 75, cam; 750, rotating shaft. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] Embodiment 1

[0021] A front end cover stamping device, including punch table 10, support 20, top plate 30, lifting seat 40, upper die 50, lower die 60 and unloading mechanism, combined Figure 1 And Figure 3 As shown: the bottom of the punch table 10 is provided with four support feet 11, the support feet 11 are threadedly connected with the bottom of the punch table 10 through bolts, so as to ensure the adjustability and detachability of the support feet 11 (at the same time, the bottom of the support feet 11 can be provided with anti-skid rubber pads, which is to ensure the stable position of the entire stamping device on the ground and to provide buffer for the stamping process). Figure 4 As shown), a positioning hole in communication with the shaped recess is formed in the lower die 60 corresponding to the boss in the middle of the end surface of the punch table 10, and the lower die 60 is placed and positioned on the end surface of the punch table 10 through the clamping of the boss and the through hole (as shown in Figure 1 As shown), the mounting ring 61 is coaxially arranged with the lower die 60, bolt holes are uniformly formed on the mounting ring 61 (the number of the bolt holes is determined according to the actual situation, generally not less than three, and multiple bolt holes are uniformly distributed on the mounting ring 61 around the central axis of the lower die 60, in this embodiment, four bolt holes are formed on the mounting ring 61), and a fixing hole is formed on the end surface of the punch table 10 corresponding to the bolt hole, the bolt hole and the fixing hole are connected through the fastening bolt 62 (as shown in Figure 1 As shown).

[0022] The top plate 30 is arranged on both sides of the end face of the punching table 10 through the support 20 (that is, the bottom end of the two supports 20 is fixedly connected with the end face of the punching table 10 on both sides, the top end of the two supports 20 is fixedly connected with the bottom face of the top plate 30, and the top plate 30 is parallel to the punching table 10), and the lifting seat 40 is arranged below the top plate 30 and between the supports 20 through the hydraulic cylinder 30 (that is, the hydraulic cylinder 30 is fixedly arranged on the top plate 30, and the output end of the hydraulic cylinder 30 is fixedly connected with the end face of the lifting seat 40; the hydraulic cylinder 30 can be a commonly used hydraulic cylinder of a punching device, and is not specifically limited in the embodiment), the lifting seat 40 is fixedly provided with the lifting sliding block 402 on the two sides corresponding to the supports 20, vertical grooves are formed on the side face of the side of the two supports 20 close to each other and corresponding to the lifting sliding block 402, and the lifting sliding block 402 is slidingly connected in the (corresponding) vertical groove, so that the sliding of the lifting seat 40 is limited, and the stability of the upward and downward movement of the lifting seat 40 is ensured.

[0023] The upper die 50 is detachably connected to the lifting seat 40 through a mounting assembly, the mounting assembly comprises a conical sliding block 41, a second spring 42 and a plurality of fixing mechanisms, a sliding cavity 401 coaxial with the inner cavity of the lifting seat 40 is formed (as shown in Figure 1 ), the conical sliding block 41 is slidingly arranged in the sliding cavity 401, and the cross section of the conical sliding block 41 is in the shape of an isosceles trapezoid with a large diameter at the upper part and a small diameter at the lower part (as shown in Figure 1 ). The conical sliding block 41 is connected between the top face of the sliding cavity 401 and the top face of the conical sliding block 41 through a plurality of second springs 42 evenly distributed (the number of the second springs 42 is not less than two, and two second springs 42 are used in the embodiment); the plurality of fixing mechanisms are evenly distributed around the central axis of the conical sliding block 41 (in order to ensure the stability of clamping the upper die 50, the number of the fixing mechanisms is generally not less than five, and six fixing mechanisms are used in the embodiment), and comprise an L-shaped connecting rod 431, a positioning sliding block 432, a fixing pin 433 and a third spring 434, one end of the L-shaped connecting rod 431 is slidingly connected with the inclined surface of the conical sliding block 41, the other end is fixedly connected with the positioning sliding block 432 slidingly arranged on the bottom face of the lifting seat 40, a sliding groove is formed in the lifting seat 40 corresponding to the L-shaped connecting rod 431 (as shown in Figure 1 , to ensure that the L-shaped connecting rod 431 can freely slide in the lifting seat 40, and the sliding groove is communicated with the sliding cavity 401), a spring groove is formed in the side face of the side of the positioning sliding block 432 close to each other, the fixing pin 433 is slidingly arranged in the spring groove, and the ends of the fixing pin 433 away from each other are connected with the corresponding spring grooves through the third spring 434. The top block is arranged in the middle of the end face of the upper die 50 (as shown in Figure 1 or Figure 4As shown, the middle part of the end face of the top block is provided with clamping splines, and the middle part of the bottom face of the tapered sliding block 41 is provided with a spline groove corresponding thereto, so that the upper die 50 is connected with the tapered sliding block 41 and rotationally limited by clamping in the spline groove; the lifting seat 40 is provided with a through hole corresponding to the top block and communicating with the sliding cavity 401, and the outer wall of the upper die 50 is provided with a fixing groove corresponding to the fixing pin 433. Referring to Figure 2 As shown, the middle part of the positioning sliding block 432 is provided with a pull rod 4330 coaxial with the fixing pin 433, one end of the pull rod 4330 is fixedly connected with the end of the fixing pin 433 close to the third spring 434, and the other end of the pull rod 4330 (i.e. the pull rod 4330) is fixedly provided with a limiting block after penetrating through the side wall of the corresponding positioning sliding block 432; the diameter of the pull rod 4330 is smaller than the inner diameter of the third spring 434, i.e. the third spring 434 is arranged outside the pull rod 4330, so as to avoid interference between the pull rod 4330 and the third spring 434.

[0024] In combination with Figure 1 With Figure 3 As shown, the unloading mechanism includes a top plate 71, a top rod 72, a first spring 73, a rectangular frame 74 and a cam 75. The top plate 71 is coaxially arranged on the upper side of the boss, and the bottom face of the top plate 71 is fixedly provided with the top rod 72 (at the same time, the outer diameter of the top plate 71 is consistent with the outer diameter of the boss, so as to ensure the integrity of the formed groove). One end of the top rod 72 away from the top plate 71 penetrates through the stamping table 10, and the end of the top rod 72 located on the lower side of the stamping table 10 is connected with the rectangular frame 74. The first spring 73 is arranged between the top plate 71 and the boss and outside the top rod 72. The cam 75 is rotationally arranged inside the rectangular frame 74. The cam 75 is fixedly sleeved on the outer wall of the rotating shaft 750. The two ends of the rotating shaft 750 are rotationally connected with the rotating seat 12 fixedly arranged on the bottom face of the stamping table 10 (as shown), so as to realize the positioning and rotation control of the cam 75 (the rotation of the cam 75 can be realized by driving the rotating shaft 750 to rotate by the motor arranged on the bottom face of the stamping table 10). Figure 3 As shown, the middle part of the end face of the top block is provided with clamping splines, and the middle part of the bottom face of the tapered sliding block 41 is provided with a spline groove corresponding thereto, so that the upper die 50 is connected with the tapered sliding block 41 and rotationally limited by clamping in the spline groove; the lifting seat 40 is provided with a through hole corresponding to the top block and communicating with the sliding cavity 401, and the outer wall of the upper die 50 is provided with a fixing groove corresponding to the fixing pin 433. Referring to

[0025] Working principle:

[0026] The initial state of the stamping device is as Figure 4As shown; in use, first, in the manufacturing process of the upper die 50 and the lower die 60, the top block of the upper die 50 is provided with a clamping spline according to the through hole and the spline groove, the fixing slot is provided according to the fixing pin 433, the positioning hole of the lower die 60 is opened according to the boss, and the bolt hole on the mounting ring 61 of the lower die 60 is opened according to the number and position of the fixing hole; then, according to the stamping needs, the lower die 60 is placed on the stamping table 10 in correspondence, and is installed and fixed through the fastening bolt 62, and the top block of the upper die 50 is pushed into the through hole, and the clamping spline corresponds to the spline groove, along with the continuous pushing of the upper die 50, the upper die 50 pushes the conical sliding block 41 to move upwards, and the second spring 42 is compressed, the conical sliding block 41 pulls the positioning sliding block 432 to slide towards the side close to the upper die 50 through the L-shaped connecting rod 431, when the fixing pin 433 contacts the outer wall of the top surface of the upper die 50, the fixing pin 433 is pushed by the upper die 50 and slides to the end away from the upper die 50, and the third spring 434 is compressed, until the fixing pin 433 corresponds to the fixing slot, and the fixing pin 433 is clamped in the corresponding fixing slot due to the elastic force of the third spring 434, so that the fixing and positioning of the upper die 50 are realized. When it is necessary to disassemble the upper die 50 and the lower die 60, the lower die 60 is separated from the stamping table 10 by unscrewing the fastening screw, the fixing pin 433 is separated from the fixing slot by pulling the pull rod 4330, and then the conical sliding block 41 moves downwards by the action of gravity and the elastic force of the second spring 42, and then the upper die 50 is pushed out of the lifting seat 40.

[0027] Then, the rectangular frame 74 is pushed down by the rotation of the cam 75, and then the top plate 71 is driven by the ejector rod 72 to move downwards (the first spring 73 is compressed), until the end face of the top plate 71 is flush with the bottom face of the forming groove of the lower die 60 (as shown), and the rotation of the cam 75 is stopped; then, the stamping forming of the product is carried out. Figure 1

[0028] After the stamping forming of the product, the rotation of the cam 75 is continued, the cam 75 pushes the rectangular frame 74, and the top plate 71 is driven by the ejector rod 72 to move downwards; along with the continuous rotation of the cam 75, the protruding part of the cam 75 is separated from the rectangular frame 74, and the top plate 71, the ejector rod 72 and the rectangular frame 74 move upwards due to the elastic force of the first spring 73, and then the product in the forming groove is impacted; through the repeated impact of the top plate 71 on the product in the rotation process of the cam 75, the product is unloaded.

[0029] Embodiment 2:

[0030] As a further optimization of the scheme of the utility model, on the basis of the scheme of embodiment 1, in order to ensure the stable lifting of the rectangular frame 74 and avoid the deviation of the rectangular frame 74 during the lifting process, so as to cause the clamping and stagnation of the whole unloading mechanism, the two sides of the lifting frame 74 (such as Figure 1 ​The L-shaped guide rods 740 are arranged at the positions away from the rectangular frame 74 and slide in the punching table 10.

[0031] Embodiment 3:

[0032] As a further optimization of the utility model scheme, on the basis of the embodiment 1 or embodiment 2 scheme, in order to avoid frequent punching to cause damage to the forming die (including the upper die 50, the lower die 60, the same below), provide a buffer for the forming die in the punching process, the end surface of the punching table 10 between the support 20, the bottom surface of the lifting seat 40 evenly lays the rubber buffer layer, and the rubber buffer layer of the end surface of the punching table 10 is opened through the hole corresponding to the fixed hole, facilitating the installation of the fastening bolt 62, the end surface of the boss is provided with the rubber buffer layer, and the side wall is not provided; the rubber buffer layer of the bottom surface of the lifting seat 40 is sequentially arranged into a hollow structure corresponding to the sliding groove and the through hole.

Claims

1. A front cover stamping device, characterized in that: The system includes a stamping table, a support, a top plate, a lifting seat, an upper die, a lower die, and an unloading mechanism. A boss is located in the center of the stamping table's end face, and a corresponding positioning hole, communicating with the forming groove, is provided in the center of the lower die. A mounting ring is fixedly fitted around the bottom outer ring of the lower die, with bolt holes evenly spaced on the mounting ring and corresponding fixing holes on the stamping table's end face. The bolt holes and fixing holes are connected by fastening bolts. A top plate is mounted on both sides of the stamping table's end face via supports. A lifting seat is mounted on the lower side of the top plate, located between the supports, via a hydraulic cylinder. The upper die is detachably connected to the lifting seat via mounting components. The unloading mechanism includes a top plate, a push rod, a first spring, a rectangular frame, and a cam. The top plate is coaxially mounted on the upper side of the boss, and a push rod is fixedly mounted on its bottom surface. The end of the push rod away from the top plate passes through the stamping table, and its lower end connects to the rectangular frame. A first spring is located between the top plate and the boss, on the outer ring of the push rod. The cam is rotatably mounted inside the rectangular frame.

2. The front cover stamping device according to claim 1, characterized in that: The bottom of the stamping table is provided with four support legs, which are connected to the bottom of the stamping table by bolts and threads.

3. The front cover stamping device according to claim 1, characterized in that: The lifting seat is fixedly provided with lifting sliders on both sides of the corresponding bracket. Vertical grooves are opened on the side of the two brackets that are close to each other and corresponding to the lifting sliders. The lifting sliders are slidably engaged in the vertical grooves.

4. The front cover stamping device according to claim 1, characterized in that: The mounting assembly includes a conical slider, a second spring, and multiple sets of fixing mechanisms. A coaxial sliding cavity is formed within the inner cavity of the lifting seat. The conical slider is slidably positioned within the sliding cavity, and its cross-section is an isosceles trapezoid with a larger upper diameter and a smaller lower diameter. The top surface of the conical slider is connected to the top surface of the sliding cavity by multiple evenly distributed second springs. Multiple sets of fixing mechanisms are evenly distributed around the central axis of the conical slider, including an L-shaped connecting rod, a positioning slider, a fixing pin, and a third spring. One end of the L-shaped connecting rod is slidably connected to the inclined surface of the conical slider, and the other end is fixedly connected to the positioning slider slidably positioned on the bottom surface of the lifting seat. The lifting seat has a groove corresponding to the L-shaped connecting rod, and a spring groove is formed on the side of the positioning sliders that are close to each other. The fixing pin is slidably positioned within the spring groove, and the opposite end of the fixing pin is connected to the corresponding spring groove via a third spring. A top block is provided in the center of the upper mold end face. The lifting seat has a through hole corresponding to the top block that communicates with the sliding cavity, and a fixing groove is formed on the outer wall of the upper mold corresponding to the fixing pin.

5. The front cover stamping device according to claim 4, characterized in that: A snap-fit ​​spline is provided at the center of the end face of the top block, and a corresponding spline groove is provided at the center of the bottom surface of the tapered slider.

6. The front cover stamping device according to claim 4, characterized in that: The positioning slider is provided with a pull rod coaxial with the fixing pin in the middle. One end of the pull rod is fixedly connected to the end of the fixing pin near the third spring, and the other end passes through the corresponding side wall of the positioning slider and is fixedly provided with a limiting block. The diameter of the pull rod is smaller than the inner diameter of the third spring.

7. The front cover stamping device according to claim 1, characterized in that: The cam is fixedly sleeved on the outer wall of the rotating shaft, and both ends of the rotating shaft are rotatably connected to the rotating seat fixedly set on the bottom surface of the stamping table.

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