A continuous stamping production line for automobile parts

Abstract

The present invention belongs to the technical field of automobile parts production equipment, specifically, a continuous stamping production line for automobile parts, comprising a bottom plate, a guide column is arranged on the bottom plate, a top plate is arranged on the upper end of the guide column; an upper die seat and an upper die are arranged on the top plate, and a lower die seat and a lower die are arranged on the bottom plate; a cooling groove is arranged on the lower die seat, an insert is arranged on the lower die, the insert is slidably arranged in the cooling groove, a cooling hole is arranged on the upper die, the cooling hole is connected to the cooling groove, a hose is arranged on the lower die seat, and the hose delivers coolant into the cooling groove; the present invention has a simple structure, the upper die is movably arranged in the cooling groove on the lower die seat, the contact area between the upper die and the coolant is increased, and the temperature is reduced, and during the stamping process, the lower die compresses the space in the cooling groove to spray the coolant, so as to cool the lower die, the stamping workpiece and the upper die, thereby ensuring the good quality of the stamping product.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts production equipment, in particular to a continuous stamping production line for automobile parts. Background Art

[0002] In the production process of automobile parts, stamping equipment is often an indispensable device. Stamping is a common mechanical processing method. Stamping refers to the processing and forming method of obtaining stamping parts of the required shape and size by applying external force to plates, strips, pipes and profiles by presses and molds to make them plastically deform or separate. Stamping parts have the following main characteristics, which are irreplaceable compared to other processing methods. The main characteristics include: lightweight and high-rigidity products; good productivity, suitable for mass production, low cost; products with uniform quality; high material utilization, good shearing and recycling properties.

[0003] During the stamping process, the material is affected by external forces, causing changes in its internal structure, thereby generating friction heat and plastic deformation heat. These heats will cause the temperature of the material to rise. The faster the stamping speed, the more friction heat and plastic deformation heat will be generated, resulting in a greater temperature rise. Excessive temperature may cause the material to soften or anneal, thereby reducing the strength and durability of the product. At the same time, if the temperature of the mold is too high for a long time, it will also affect the strength of the mold, causing the mold to deform during the stamping process, affecting the normal use of the mold. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art, the upper die is movably installed in the cooling groove on the lower die base, the contact area between the upper die and the coolant is increased, the heat dissipation in the upper die is accelerated, and during the stamping process, the lower die compresses the space in the cooling groove to spray out the coolant, further cooling the lower die, the stamping workpiece and the upper die, ensuring the normal temperature of the die and the good quality of the stamping product. The present invention proposes a continuous stamping production line for automobile parts.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention is a continuous stamping production line for automobile parts, comprising a bottom plate, a guide column is installed on the bottom plate, a top plate is installed on the upper end of the guide column, a lower die is installed on the bottom plate, an upper die is installed on the top plate, and the upper die and the lower die match each other;

[0006] An upper die seat is mounted on the top plate, the upper die is mounted on the upper die seat, a lower die seat is mounted on the bottom plate, and a lower die is mounted on the lower die seat;

[0007] A cooling groove is provided on the lower die base, an insert portion is provided on the lower die, the insert portion is slidably installed in the cooling groove, a spring is installed between the insert portion and the bottom surface of the cooling groove, a cooling hole is provided on the lower die, the cooling hole is connected to the cooling groove, and a hose is installed on the lower die base, and the hose delivers coolant into the cooling groove.

[0008] Preferably, guide plates are installed on the lower mold, and the guide plates extend into the cooling grooves. The guide plates are staggered and distributed, and the guide plates do not contact the inner walls of the cooling grooves.

[0009] Preferably, a blocking plug is installed at the outlet of the cooling hole, a spray hole is opened on the blocking plug, and the spray hole on the blocking plug is in a normally closed state.

[0010] Preferably, a column is installed in the cooling groove, a positioning hole is opened on the lower mold, and the upper end of the column is slidably installed in the positioning hole;

[0011] A drainage groove is provided on the side surface of the upper end of the column, the width and depth of the drainage groove gradually decrease from top to bottom, and the positioning hole is communicated with the cooling hole.

[0012] Preferably, a collecting groove is provided at the edge of the upper surface of the lower mold, a discharge port is provided on the collecting groove, the outlet direction of the cooling hole is inclined to point to the middle position of the lower mold, and the projection of the upper mold on the lower mold is located on the inner side of the collecting groove.

[0013] Preferably, the bottom surface of the collecting tank is inclined toward the discharge port.

[0014] Preferably, the interior of the guide plate is a heat pipe structure, and limiting rods are symmetrically installed in the cooling groove, and the lower end of the guide plate is inserted into the gap between the limiting rods.

[0015] Preferably, a guide groove is provided on the surface of the guide plate, the limiting rod is located in the guide groove, a polytetrafluoroethylene coating is provided on the surface of the limiting rod and the guide groove, and the internal structure of the limiting rod is also a heat pipe structure.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention discloses a continuous stamping production line for automobile parts. By arranging a cooling groove, an insert, a lower die and a cooling hole, the lower die is slidably installed in the cooling groove, thereby increasing the contact area between the lower die and the coolant in the cooling groove, and facilitating the cooling of the lower die. At the same time, during stamping, the lower die compresses the space in the cooling groove, so that the coolant is sprayed out from the cooling hole to spray the upper die, the stamping part and the surface of the lower die, and further cools the stamping device, thereby ensuring the normal use of the stamping device and the good quality of the stamped products.

[0018] 2. The present invention discloses a continuous stamping production line for automobile parts. By arranging upright posts, drainage grooves and positioning holes, when the lower die compresses the space in the cooling groove, as the upright posts gradually enter the positioning holes, the coolant that enters the positioning holes from the drainage grooves and sprays out from the cooling holes gradually decreases. Therefore, in the downward process of the lower die, the buffering of the movement speed of the lower die is small in the initial stage. The lower die can ensure stable and accurate movement through the cooperation of the upright posts and the positioning holes. Afterwards, as the spraying of coolant decreases, the throttling effect is significantly improved, the buffering of the movement speed of the lower die is large, and the downward movement of the lower die is gradually stopped, thereby avoiding direct hard contact between the upper die and the lower die, and between the lower die and the lower die seat, reducing wear and extending the service life of the stamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a front view of a punching device in a punching production line of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a lower die base and a lower die in a stamping device in a stamping production line of the present invention;

[0022] Figure 3 It is a front view of the lower die seat in the punching device in the punching production line of the present invention;

[0023] Figure 4 It is a front view of the lower die in the punching device in the punching production line of the present invention;

[0024] Figure 5 yes Figure 2 A partial enlarged view of the middle part;

[0025] Figure 6 yes Figure 2 A partial enlarged view of point B in the middle;

[0026] In the figure: base plate 1, guide column 11, top plate 12, upper die base 2, lower die base 3, cooling groove 31, hose 32, column 33, drainage groove 331, limiting rod 34, lower die 4, guide plate 42, positioning hole 43, cooling hole 431, blocking plug 432, insertion part 44, spring 45, collecting groove 46. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figures 1 to 6As shown, the present invention discloses a continuous stamping production line for automobile parts, comprising a bottom plate 1, a guide column 11 is mounted on the bottom plate 1, a top plate 12 is mounted on the upper end of the guide column 11, a lower die 4 is mounted on the bottom plate 1, an upper die is mounted on the top plate 12, and the upper die and the lower die 4 match each other;

[0029] An upper die base 2 is mounted on the top plate 12, the upper die is mounted on the upper die base 2, a lower die base 3 is mounted on the bottom plate 1, and a lower die 4 is mounted on the lower die base 3;

[0030] The lower die base 3 is provided with a cooling groove 31, the lower die 4 is provided with an inserting portion 44, the inserting portion 44 is slidably installed in the cooling groove 31, a spring 45 is installed between the inserting portion 44 and the bottom surface of the cooling groove 31, the lower die 4 is provided with a cooling hole 431, the cooling hole 431 is connected to the cooling groove 31, and a hose 32 is installed on the lower die base 3, and the hose 32 delivers the coolant into the cooling groove 31;

[0031] During operation, the coolant or stamping liquid is sent from the hose 32 to the cooling tank 31 through an external circulation device, so that the lower die 4 slidably installed in the cooling tank 31 can fully contact the coolant in the cooling tank 31, thereby dissipating the heat accumulated in the lower die 4 during the stamping process, avoiding the lower die 4 and the stamping parts from having excessively high temperatures, which affects the quality of the stamping die and the stamping products. At the same time, a one-way valve is installed on the hose 32 to ensure that the coolant flows smoothly when the hose 32 transports the coolant, and prevents the coolant from flowing in the opposite direction or backflowing.

[0032] At the same time, since the inserting portion 44 is slidably installed in the cooling groove 31, and a spring 45 is installed between the inserting portion 44 and the bottom surface of the cooling groove 31, there is a gap between the lower die 4 and the lower die seat 3. During the stamping process, when the upper die presses the lower die 4 downward, the lower die 4 moves downward and the inserting portion 44 is further inserted into the cooling groove 31, thereby compressing the space in the cooling groove 31, increasing the pressure in the cooling groove 31, and then the coolant in the cooling groove 31 is ejected from the cooling hole 431 under the action of the increased pressure, and the coolant falls on the upper die surface, the stamping workpiece and the upper die surface, so as to further dissipate heat and cool down the upper die surface, the stamping workpiece and the upper die surface, ensure that the temperature of the stamping device is within the working range, and avoid the temperature of the stamping device being too high, resulting in mold damage and poor quality of stamped products;

[0033] At the same time, since the space inside the cooling groove 31 is interconnected with the cooling hole 431, when the space inside the cooling groove 31 is compressed, the coolant will spray out from the cooling hole 431. In this process, due to the limitation of the number and diameter of the cooling holes 431, the lower mold 4 will move downward relatively slowly and compress the space inside the cooling groove 31. Therefore, when the upper mold squeezes the lower mold 4 to move the lower mold 4 downward, the cooling groove 31, the coolant and the cooling hole 431 produce a throttling effect, which buffers the downward movement of the lower mold 4 and avoids direct hard contact between the upper mold and the lower mold 4 during the stamping process as much as possible. The contact between the two is buffered, the wear of the upper mold and the lower mold 4 during the stamping process is reduced, and the service life of the upper mold and the lower mold 4 is extended.

[0034] As an embodiment of the present invention, the lower mold 4 is provided with guide plates 42, the guide plates 42 extend into the cooling groove 31, the guide plates 42 are staggered, and the guide plates 42 do not contact the inner wall of the cooling groove 31;

[0035] The guide plate 42 installed on the lower die 4 increases the surface area of ​​the lower die 4, so that the lower surface of the lower die 4 and the guide plate 42 are in full contact with the coolant in the cooling groove 31, and the exchange speed between the heat on the lower die 4 and the coolant is accelerated, thereby improving the heat dissipation effect generated during the stamping process, and avoiding the heat generated during the stamping process from accumulating in the stamping device, affecting the service life of the stamping device and causing poor quality of the stamping;

[0036] At the same time, since at least two hoses 32 are installed on the lower die seat 3, in cooperation with external circulation equipment, such as a liquid pump, the coolant circulates back and forth between the external container and the cooling tank 31, ensuring that the temperature of the coolant is relatively low, thereby improving the heat dissipation effect in the lower die 4. At the same time, since the guide plate 42 will be inserted into the coolant in the cooling tank 31, when the coolant flows and circulates in the cooling tank 31, the guide plate 42 on the lower die 4 will interfere with the coolant flow path in the cooling tank 31, making the coolant flow path in the cooling tank 31 relatively long and the coolant stays in the cooling tank 31 relatively long, so that the coolant is fully in contact with the guide plate 42, thereby improving the effect of heat exchange, and then improving the cooling effect of the stamping device, extending the service life of the stamping device and the quality of the stamping products.

[0037] As an embodiment of the present invention, a blocking plug 432 is installed at the outlet of the cooling hole 431, and a spray hole is opened on the blocking plug 432, and the spray hole on the blocking plug 432 is in a normally closed state;

[0038] During the stamping process, debris will be generated, causing some of the debris and slag to accumulate on the surface of the lower mold 4. At the same time, since the opening of the cooling hole 431 is located on the surface of the lower mold 4, the debris and slag generated by the stamping are easy to enter the cooling hole 431, causing the cooling hole 431 to be blocked or the debris and slag to accumulate in the cooling groove 31, affecting the normal use of the stamping device. Therefore, a blocking plug 432 is installed at the outlet of the cooling hole 431. By utilizing the elasticity of the blocking plug 432 itself, the spray hole on the blocking plug 432 is in a normally closed state, thereby preventing the debris and slag generated during the stamping process from entering the cooling hole 431, causing the cooling hole 431 to be blocked, affecting the normal operation of the stamping device.

[0039] As an embodiment of the present invention, a column 33 is installed in the cooling groove 31, a positioning hole 43 is opened on the lower mold 4, and the upper end of the column 33 is slidably installed in the positioning hole 43;

[0040] A drainage groove 331 is provided on the side surface of the upper end of the column 33, and the width and depth of the drainage groove 331 gradually decrease from top to bottom. The positioning hole 43 is connected to the cooling hole 431;

[0041] The movement of the lower die 4 is constrained and guided by the cooperation between the upright column 33 and the positioning hole 43, so as to ensure the stable movement of the lower die 4, avoid the lower die 4 from shaking and tilting during the movement, and affect the processing accuracy of the stamping process, so as to ensure the stamping process effect;

[0042] At the same time, when the lower mold 4 just starts to move downward and squeezes the space in the cooling groove 31, the column 33 also starts to gradually insert into the positioning hole 43. Due to the influence of the drainage groove 331 opened on the surface of the column 33, the amount of coolant entering the positioning hole 43 from the drainage groove 331 gradually decreases. That is, when the lower mold 4 just starts to move downward, the amount of coolant passing through the drainage groove 331 into the positioning hole 43 and sprayed out from the cooling hole 431 is relatively large. Later, as the lower mold 4 continues to move downward, the amount of coolant entering the positioning hole 43 and spraying out from the cooling hole 431 is relatively large. The amount of coolant sprayed from the cooling hole 431 is relatively reduced. Therefore, by changing the amount of coolant sprayed from the cooling hole 431, that is, the amount of coolant is relatively reduced, the buffering effect on the lower die 4 is gradually increased, and the movement speed of the lower die 4 is gradually reduced, that is, the movement speed of the lower die 4 is first slowly buffered, so that the column 33 is inserted into the positioning hole 43 for a distance, and then the movement speed of the lower die 4 is quickly buffered, thereby ensuring the stability of the downward movement of the lower die 4, avoiding the skewness and shaking of the lower die 4 when moving, and ensuring the good accuracy of the stamping process;

[0043] At the same time, when the upper die initially contacts and presses the lower die 4, a relatively large amount of coolant is sprayed out to cool and lubricate the upper die, the lower die 4 and the stamping workpiece, thereby improving the stamping effect.

[0044] As an embodiment of the present invention, a collecting groove 46 is provided at the edge of the upper surface of the lower mold 4, a discharge port is provided on the collecting groove 46, the outlet direction of the cooling hole 431 is tilted to point to the middle position of the lower mold 4, and the projection of the upper mold on the lower mold 4 is located on the inner side of the collecting groove 46;

[0045] After the upper die contacts the lower die 4, the lower die 4 will move downward after being squeezed. At this time, the coolant sprayed from the cooling hole 431 will infiltrate, cool and lubricate the lower die 4, the upper die and the stamped workpiece, ensuring a good stamping effect and good quality of the stamped product. At the same time, since the outlet direction of the cooling hole 431 points to the middle position of the lower die 4, the sprayed coolant will contact the surface of the upper die, the surface of the stamped workpiece and fall on the surface of the lower die 4. In the process of cooling it, the coolant that slides down will bring along the debris and slag generated in the stamping process. At the same time, due to the projection position of the upper die on the lower die 4 On the inner side of the collecting groove 46, most of the flowing coolant will fall onto the surface of the lower die 4 and then be concentrated in the collecting groove 46, thereby preventing the sprayed coolant from flowing randomly and affecting the stamping process. At the same time, during the stamping process, since the lower die 4 moves back and forth relative to the lower die base 3, the surface of the lower die 4 vibrates, causing the coolant and debris on the surface of the lower die 4 to enter the collecting groove 46 under the influence of vibration, and finally be discharged from the discharge port on the collecting groove 46, so as to facilitate the recycling of the sprayed coolant and avoid the sprayed coolant and the existing debris, slag, etc. affecting the smooth progress of the stamping process.

[0046] As an embodiment of the present invention, the bottom surface of the collecting tank 46 is inclined toward the discharge port;

[0047] Since the bottom surface of the collecting groove 46 is inclined, during the reciprocating motion of the lower mold 4 relative to the lower mold base 3, the coolant and debris on the surface of the lower mold 4 will automatically enter the collecting groove 46 under the influence of gravity and vibration, so that the coolant can be recycled and reused. At the same time, the vibration generated by the lower mold 4, combined with the inclined bottom surface of the collecting groove 46, will enable the liquid and objects that fall into the collecting groove 46 to move smoothly to a lower place, so that the coolant and debris can move to the discharge port, and then the coolant and debris can be smoothly discharged from the discharge port, thereby facilitating the recycling of the coolant and the centralized collection of the debris.

[0048] As an embodiment of the present invention, the guide plate 42 has a heat pipe structure inside, and the limiting rods 34 are symmetrically installed in the cooling groove 31, and the lower end of the guide plate 42 is inserted into the gap between the limiting rods 34;

[0049] By arranging a heat pipe structure inside the guide plate 42, the heat conduction effect of the guide plate 42 is improved, thereby accelerating the heat exchange, thereby cooling the stamping device to avoid excessive temperature and affecting the service life of the stamping device and the quality of the stamping product. At the same time, since the end of the guide plate 42 close to the bottom of the cooling groove 31 is in a free state in the cooling groove 31, and the thickness of the guide plate 42 is relatively thin, during the reciprocating motion of the lower mold 4 relative to the lower mold base 3, the guide plate 42 is easy to impact with the coolant in the cooling groove 31, causing the guide plate 42 to deform, affecting the normal use of the guide plate 42. Therefore, a limiting rod 34 is installed in the cooling groove 31, so that the limiting rod 34 clamps the guide plate 42 therein, so that when the guide plate 42 moves with the lower mold 4, the guide plate 42 is constrained and protected to avoid deformation of the guide plate 42 and affecting the normal operation of the guide plate 42.

[0050] As an embodiment of the present invention, a guide groove is provided on the surface of the guide plate 42, the limiting rod 34 is located in the guide groove, a polytetrafluoroethylene coating is provided on the surface of the limiting rod 34 and the guide groove, and the internal structure of the limiting rod 34 is also a heat pipe structure;

[0051] By setting a guide groove on the surface of the guide plate 42, the limiting rod 34 and the guide groove are matched with each other, so that the guide plate 42 can stably stay in the position between the limiting rods 34 during the up and down movement, so as to utilize the limiting rods 34 to constrain and protect the shape and movement state of the guide plate 42, avoid the guide plate 42 from shaking or deforming, and affect the normal use of the guide plate 42. At the same time, by setting the polytetrafluoroethylene coating, the friction between the two when the guide plate 42 moves relative to the limiting rod 34 can be reduced, the wear between the two can be reduced, and the service life of both can be extended. At the same time, through the contact between the guide arrangement and the limiting rod 34, part of the heat will be transferred to the lower mold base 3 through the heat pipe, thereby accelerating the heat transfer on the lower mold 4, and the heat worn on the lower mold base 3 will be taken away by the coolant in the cooling groove 31.

[0052] The specific workflow is as follows:

[0053] During operation, the coolant or punching liquid is sent from the hose 32 to the cooling tank 31 through an external circulation device, so that the lower mold 4 with the insert portion 44 slidingly installed in the cooling tank 31 can fully contact the coolant in the cooling tank 31. At the same time, a one-way valve is installed on the hose 32;

[0054] At the same time, since the inserting portion 44 is slidably installed in the cooling groove 31, and a spring 45 is installed between the inserting portion 44 and the bottom surface of the cooling groove 31, there is a gap between the lower die 4 and the lower die seat 3. During the stamping process, when the upper die presses the lower die 4 downward, the lower die 4 moves downward and the inserting portion 44 is further inserted into the cooling groove 31, which compresses the space in the cooling groove 31, increases the pressure in the cooling groove 31, and then the coolant in the cooling groove 31 is ejected from the cooling hole 431 under the action of the increased pressure, so as to dissipate heat and cool down the upper die surface, the stamping workpiece and the upper die surface;

[0055] At the same time, since the space inside the cooling groove 31 is interconnected with the cooling hole 431, when the space inside the cooling groove 31 is compressed, the coolant will be ejected from the cooling hole 431. In this process, due to the limitation of the number and diameter of the cooling holes 431, the lower mold 4 will move downward relatively slowly and compress the space inside the cooling groove 31. Therefore, when the upper mold squeezes the lower mold 4 and moves the lower mold 4 downward, the cooling groove 31, the coolant and the cooling hole 431 produce a throttling effect, thereby buffering the downward movement of the lower mold 4.

[0056] The guide plate 42 is installed on the lower mold 4 so that the lower surface of the lower mold 4 and the guide plate 42 are in full contact with the coolant in the cooling groove 31.

[0057] At the same time, since at least two hoses 32 are installed on the lower die seat 3, in cooperation with external circulation equipment, such as a liquid pump, the coolant circulates back and forth between the external container and the cooling tank 31. At the same time, when the coolant circulates in the cooling tank 31, the guide plate 42 on the lower die 4 interferes with the coolant flow path in the cooling tank 31, making the coolant flow path in the cooling tank 31 relatively long and the coolant stays in the cooling tank 31 for a relatively long time, so that the coolant is fully in contact with the guide plate 42, thereby improving the effect of heat exchange;

[0058] A blocking plug 432 is installed at the outlet of the cooling hole 431. The blocking plug 432 is elastic so that the spray hole on the blocking plug 432 is in a normally closed state, thereby preventing debris and slag generated during the stamping process from entering the cooling hole 431.

[0059] Through the cooperation between the column 33 and the positioning hole 43, the movement of the lower mold 4 is constrained and guided, thereby ensuring that the lower mold 4 can move stably;

[0060] At the same time, when the lower mold 4 just starts to move downward and squeezes the space in the cooling groove 31, the column 33 also starts to gradually insert into the positioning hole 43. Due to the influence of the drainage groove 331 opened on the surface of the column 33, the amount of coolant entering the positioning hole 43 from the drainage groove 331 gradually decreases, that is, when the lower mold 4 just starts to move downward, the amount of coolant passing through the drainage groove 331 into the positioning hole 43 and sprayed from the cooling hole 431 is relatively more. Afterwards, as the lower mold 4 continues to move downward, the amount of coolant entering the positioning hole 43 and sprayed from the cooling hole 431 will be relatively reduced. Therefore, through the change in the amount of coolant sprayed from the cooling hole 431, that is, the relative reduction in the amount of coolant, the buffering effect of the lower mold 4 is gradually increased and the movement speed of the lower mold 4 is gradually reduced, that is, the movement speed of the lower mold 4 is first slowly buffered, so that the column 33 is inserted into the positioning hole 43 for a distance, and then the movement speed of the lower mold 4 is quickly buffered, thereby ensuring the stability of the downward movement of the lower mold 4.

[0061] At the same time, when the upper die initially contacts and squeezes the lower die 4, a relatively large amount of coolant is ejected to cool and lubricate the upper die, the lower die 4 and the stamping workpiece;

[0062] After the upper die contacts the lower die 4, the lower die 4 will move downward after being squeezed. At this time, the coolant sprayed from the cooling hole 431 will infiltrate, cool and lubricate the lower die 4, the upper die and the stamped workpiece. At the same time, since the outlet direction of the cooling hole 431 points to the middle position of the lower die 4, the sprayed coolant will contact the surface of the upper die, the surface of the stamped workpiece and fall on the surface of the lower die 4. The coolant that slides down will bring along the debris and slag generated during the stamping process. At the same time, during the stamping process, since the lower die 4 reciprocates relative to the lower die base 3, the surface of the lower die 4 vibrates, causing the coolant and debris on the surface of the lower die 4 to enter the collecting tank 46 under the influence of vibration, and finally be discharged from the discharge port on the collecting tank 46.

[0063] At the same time, the vibration generated by the lower mold 4, combined with the inclined bottom surface of the collecting tank 46, will enable the liquid and objects falling into the collecting tank 46 to move smoothly to the lower part, so that the coolant and debris move to the discharge port;

[0064] By arranging a heat pipe structure inside the guide plate 42, the heat conduction effect of the guide plate 42 is improved. At the same time, a limiting rod 34 is installed in the cooling groove 31, so that the limiting rod 34 clamps the guide plate 42 therebetween, so that when the guide plate 42 moves with the lower mold 4, the guide plate 42 is constrained and protected to prevent the guide plate 42 from being deformed.

[0065] By setting a guide groove on the surface of the guide plate 42, the limiting rod 34 and the guide groove cooperate with each other, so that the guide plate 42 can stably stay in the position between the limiting rods 34 during the up and down movement, so that the limiting rods 34 can be used to constrain and protect the shape and movement state of the guide plate 42. At the same time, through the contact between the guide arrangement and the limiting rods 34, a part of the heat will be transferred to the lower mold base 3 through the heat pipe, thereby accelerating the transfer of heat on the lower mold 4, and the heat worn on the lower mold base 3 will be taken away by the coolant in the cooling groove 31.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A continuous stamping production line for automobile parts, comprising a bottom plate (1), a guide column (11) being mounted on the bottom plate (1), a top plate (12) being mounted on the upper end of the guide column (11), a lower die (4) being mounted on the bottom plate (1), an upper die being mounted on the top plate (12), and the upper die and the lower die (4) being matched with each other; Features: An upper die base (2) is mounted on the top plate (12), the upper die is mounted on the upper die base (2), a lower die base (3) is mounted on the bottom plate (1), and a lower die (4) is mounted on the lower die base (3); The lower die base (3) is provided with a cooling groove (31), the lower die (4) is provided with an insert portion (44), the insert portion (44) is slidably installed in the cooling groove (31), a spring (45) is installed between the insert portion (44) and the bottom surface of the cooling groove (31), the lower die (4) is provided with a cooling hole (431), the cooling hole (431) is connected to the cooling groove (31), and a hose (32) is installed on the lower die base (3), and the hose (32) delivers cooling liquid into the cooling groove (31); A blocking plug (432) is installed at the outlet of the cooling hole (431), a spray hole is opened on the blocking plug (432), and the spray hole on the blocking plug (432) is in a normally closed state; A column (33) is installed in the cooling groove (31), a positioning hole (43) is opened on the lower mold (4), and the upper end of the column (33) is slidably installed in the positioning hole (43); A drainage groove (331) is provided on the side surface of the upper end of the column (33), the width and depth of the drainage groove (331) gradually decrease from top to bottom, and the positioning hole (43) and the cooling hole (431) are connected to each other; The lower mold (4) is provided with guide plates (42), the guide plates (42) extend into the cooling groove (31), the guide plates (42) are arranged in a staggered manner, and the guide plates (42) do not contact the inner wall of the cooling groove (31); The interior of the guide plate (42) is a heat pipe structure, and limiting rods (34) are symmetrically installed in the cooling groove (31), and the lower end of the guide plate (42) is inserted into the gap between the limiting rods (34); A guide groove is provided on the surface of the guide plate (42), the limiting rod (34) is located in the guide groove, a polytetrafluoroethylene coating is provided on the surfaces of the limiting rod (34) and the guide groove, and the internal structure of the limiting rod (34) is also a heat pipe structure.

2. According to claim 1, a continuous stamping production line for automobile parts, characterized in that: A collecting groove is provided at the edge of the upper surface of the lower mold (4), and a discharge port is provided on the collecting groove. The outlet direction of the cooling hole (431) is inclined to point to the middle position of the lower mold (4), and the projection of the upper mold on the lower mold (4) is located on the inner side of the collecting groove.

3. According to claim 2, a continuous stamping production line for automobile parts, characterized in that: The bottom surface of the collecting tank is inclined toward the discharge port.

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