A small hydraulic stamping machine for head ends

Abstract

The present application relates to a small-sized hydraulic stamping machine for heads, belonging to the field of head production technology. The hydraulic stamping machine includes a base, a stamping machine body arranged above the base, a pressing plate arranged on the stamping machine body, a plurality of auxiliary hydraulic cylinders arranged between the stamping machine body and the pressing plate, a lower die arranged at intervals above the base, an upper die abutted above the lower die, an upper adjustment and fixing mechanism arranged between the upper die and the pressing plate for connecting the two and simultaneously adjusting the connection position of the two in the horizontal and vertical directions, and a lower adjustment and fixing mechanism arranged between the base and the lower die for leveling the lower die and simultaneously quickly connecting the two; the upper die and the lower die are located between the base and the pressing plate. The present application has the effect of facilitating the staff to quickly replace different types of dies, thereby quickly preparing heads of different sizes and models according to order requirements, and improving the practicability and applicability of the hydraulic stamping machine.

Description

Technical Field

[0001] The present application relates to the field of head production technology, and in particular, to a hydraulic stamping machine for small heads. Background Art

[0002] A head refers to a component used to close the end of a container to isolate the internal and external media, also known as an end cover. It is generally used in various container equipment, such as storage tanks, heat exchangers, towers, reaction kettles, boilers, and separation equipment, etc. Its diameter varies. When forming a head with a larger diameter, a flanging machine is usually used to perform flanging treatment on the edge position of the head. A flanging machine can also be used to perform flanging treatment on the edge position of a small-diameter head, but its forming speed is slow and the efficiency is low.

[0003] Currently, using a hydraulic stamping machine to stamp small heads not only has high efficiency but also is easy to operate. The hydraulic stamping machine includes a stamping machine body, a stamping head, an upper die, and a lower die provided on the stamping machine body. When in use, a steel plate blank needs to be placed above the lower die, and then the stamping machine body is started. The stamping machine body drives the lower die to fix the steel plate blank above the upper die. Subsequently, the hydraulic cylinder in the stamping machine body drives the stamping head to perform stamping treatment on the steel plate blank, so that the steel plate blank forms a head with a size adapted to the lower die. However, when the upper die and the lower die are installed, they are usually fixed to the stamping machine body by welding or a large number of bolts. The installation process of the die is laborious and the position is difficult to adjust, with a low error tolerance. Moreover, it is difficult to replace other models of dies once the die is installed, and the applicability and practicality are poor. Summary of the Invention

[0004] In order to facilitate the staff to quickly replace different models of dies, so as to quickly prepare heads of different size models according to order requirements and improve the practicality and applicability of the hydraulic stamping machine, the present application provides a hydraulic stamping machine for small heads.

[0005] A hydraulic stamping machine for small heads provided by the present application adopts the following technical solutions:

[0006] A small-sized hydraulic stamping machine for head covers, comprising a base, a stamping machine body arranged above the base, a pressing plate arranged on the stamping machine body, a plurality of auxiliary hydraulic cylinders arranged between the stamping machine body and the pressing plate, a lower die arranged above the base at intervals, an upper die abutted above the lower die, an upper adjusting and fixing mechanism arranged between the upper die and the pressing plate for connecting the two and capable of adjusting the connection position of the two in the transverse and longitudinal directions, a lower adjusting and fixing mechanism arranged between the base and the lower die for leveling the lower die and quickly connecting the two, and a guiding assembly arranged between the stamping machine body and the pressing plate for guiding and limiting the movement of the pressing plate; the upper die and the lower die are located between the base and the pressing plate.

[0007] By adopting the above technical solutions, when the staff presses the head cover through the stamping machine, first place the steel plate blank above the lower die, then start the auxiliary hydraulic cylinder to drive the pressing plate to move downward. Under the guiding action of the guiding assembly, the pressing plate drives the upper adjusting and fixing mechanism and the upper die to move downward to the top of the lower die, and fixes the steel plate blank. Subsequently, start the stamping machine body, and the hydraulic cylinder on the stamping machine body drives the stamping head to stamp the steel plate blank to quickly form the head cover. Then open the upper die and the lower die, take out the head cover, and the preliminary forming of the head cover can be completed. Among them, the guiding assembly can prevent the pressing plate from shaking or deflecting easily, so that the upper die and the lower die are not prone to deflecting during the pressing process, thereby making the size of the head cover more accurate and improving the quality of the head cover. If it is necessary to prepare head covers of other size models according to the order requirements, first, the staff quickly releases the connection of the lower die through the lower adjusting and fixing mechanism, and replaces the lower die with the required size. Then level the lower die through the lower adjusting and fixing mechanism and quickly connect the base and the lower die. Subsequently, the staff releases the connection of the upper die through the upper adjusting and fixing mechanism, replaces the upper die with the required size, then connects the lower die through the upper adjusting and fixing mechanism, and adjusts the installation position of the upper die according to the position of the lower die to align the upper die with the lower die, and the quick replacement of the upper die and the lower die can be completed. Among them, the lower adjusting and fixing mechanism not only facilitates the staff to quickly connect the lower die with the base, but also can level the lower die, further facilitating the subsequent installation, so that the staff can install efficiently and quickly. At the same time, the upper adjusting and fixing mechanism can not only adjust the position of the upper die to quickly align the upper die with the lower die, but also quickly connect the upper die with the pressing plate, so as to facilitate the staff to quickly replace the lower die. The staff can quickly replace different models of dies according to the order requirements, thereby reducing the number of idle stamping machines, further reducing the total occupied space of the stamping machines, quickly preparing head covers of different size models, and improving the practicability and applicability of the hydraulic stamping machine.

[0008] Optionally, the upper adjustment and fixing mechanism includes four connecting blocks fixedly arranged below the pressing plate, upper support columns slidably connected below the connecting blocks, an upper adjustment assembly arranged between the upper support columns and the connecting blocks for adjusting the positions of the upper support columns in the radial direction of the upper die, and a lower adjustment assembly arranged between the upper support columns and the top of the upper die for adjusting the connection positions in the transverse and longitudinal directions and connecting the two;

[0009] The four connecting blocks are evenly arranged at intervals along the circumferential direction of the upper die to the bottom of the pressing plate, and the connecting blocks are strip-shaped, and the length direction of the connecting blocks is consistent with the radial direction of the upper die.

[0010] By adopting the above technical solution, when connecting the pressing plate and the upper die through the upper adjustment and fixing mechanism, first, the staff can adjust the positions of the upper support columns through the change of the size of the upper die and the upper adjustment assembly, so that the upper support columns roughly move in the radial direction of the upper die to be adapted to the connection position with the upper die. Then, the lower adjustment assembly is used to finely adjust the connection positions of the upper support columns and the top of the upper die in the transverse and longitudinal directions, align the upper die and the lower die, and connect the upper support columns and the upper die, so as to realize the replacement of the upper die. Among them, through the combined use of the upper adjustment assembly and the lower adjustment assembly, the connection positions between multiple upper support columns and the upper die can be quickly adjusted, and at the same time, it is convenient to align the upper die and the lower die, so as to facilitate the subsequent precise pressing and forming of the steel plate blank, and improve the production quality and efficiency of the head.

[0011] Optionally, the lower adjustment assembly includes an upper adjustment plate fixedly arranged below the upper support column, a lower adjustment plate abutted against the top of the upper die, a plurality of transverse bolts arranged between the upper adjustment plate and the lower adjustment plate, and a plurality of longitudinal bolts arranged between the lower adjustment plate and the top of the upper die;

[0012] A plurality of horizontally arranged transverse adjustment grooves are formed on the upper adjustment plate, a plurality of longitudinally arranged longitudinal adjustment grooves are formed on the lower adjustment plate, both the transverse adjustment grooves and the longitudinal adjustment grooves are in the shape of waist-shaped holes, and the transverse adjustment grooves and the longitudinal adjustment grooves are perpendicular to each other; the transverse bolts penetrate through the transverse adjustment grooves and are threadedly connected with the lower adjustment plate, and the longitudinal bolts penetrate through the longitudinal adjustment grooves and are threadedly connected with the top of the upper die.

[0013] By adopting the above technical solution, when connecting the upper support column and the top of the upper mold through the lower adjustment component, first, thread holes are drilled on the top of the upper mold. Then, the lower adjustment plate is abutted against the upper part of the upper mold, and the longitudinal bolt is passed through the longitudinal adjustment groove and connected to the thread hole above the upper mold. Next, the upper adjustment plate is abutted against the lower adjustment plate, and the transverse bolt is passed through the transverse adjustment groove and connected to the thread hole above the lower adjustment plate, thus realizing the connection between the upper support column and the upper mold. If there is a skew between the upper mold and the lower mold and the staff needs to make horizontal and vertical fine adjustments to the connection position between the upper support column and the upper mold, first, the staff can loosen the longitudinal bolt and the transverse bolt, and adjust the position of the lower adjustment plate longitudinally or adjust the position of the upper adjustment plate horizontally according to the skew direction, so as to align the upper mold and the lower mold. Moreover, no re-drilling is required on the lower adjustment plate, the upper adjustment plate, and the upper mold, thus improving the error tolerance rate during drilling by the staff and the error tolerance rate during the installation of the upper mold. At the same time, it is not easy to cause secondary damage to the lower adjustment plate, the upper adjustment plate, and the upper mold, and it also improves the efficiency of connecting the upper support column and the upper mold by the staff, accelerating the replacement of the upper mold.

[0014] Optionally, the upper adjustment component includes an adjustment block fixedly arranged at the top of the upper support column and an adjustment screw rod rotatably connected to the connection block;

[0015] The connection block is provided with a sliding groove along its length direction. The adjustment block is located in the sliding groove and can slide but cannot detach downward from the sliding groove. The adjustment screw rod is arranged along the length direction of the connection block, and the adjustment screw rod is threadedly connected to the adjustment block.

[0016] By adopting the above technical solution, when replacing upper molds of different specifications and sizes, due to the change in the sizes of the head and the upper mold, the force application points of the upper mold need to change, that is, the position of the upper support column needs to be adjusted. When the staff adjusts the position of the upper support column in the radial direction of the upper mold through the upper adjustment component, first, the staff rotates the adjustment screw rod, and the adjustment screw rod drives the adjustment block threadedly connected to it to slide along the length direction of the connection block to a connection position adapted to the upper mold, thus completing the adjustment of the position of the upper support column and adjusting the force application points of the upper mold. Among them, the adjustment block can only slide in the sliding groove and cannot detach downward from the connection block, thus realizing the connection between the upper support column and the connection block at the same time. Moreover, through the combined use of the upper adjustment component and the lower adjustment component, the connection positions between multiple upper support columns and the upper mold can be quickly adjusted, and at the same time, it is convenient to quickly align the upper mold and the lower mold.

[0017] Optionally, the lower adjustment and fixing mechanism includes a plurality of lower support columns fixedly arranged above the base, a lower connection disk arranged at intervals above the lower support columns, a leveling component arranged between the lower support columns and the lower connection disk for driving the lower connection disk to move up and down, and a connection component arranged between the lower connection disk and the lower mold for connecting the two.

[0018] By adopting the above technical solution, when connecting the base and the lower die through the downward-adjusting fixing mechanism, first, the leveling component drives the lower connecting plate to move up and down, so that multiple lower connecting plates above the base are in the same plane. Then, the lower die is placed above the lower connecting plate, and the lower connecting plate and the lower die are connected through the connecting component, thus realizing the replacement and installation of the lower die; wherein the leveling component can level the lower die to keep the lower die horizontal, so that when the head is pressed subsequently, the produced head has a uniform circumferential shape, improving the quality of the head.

[0019] Optionally, the leveling component includes a driving sleeve rotatably connected to the top of the lower support column and a lifting screw threadedly connected to the driving sleeve; one end of the lifting screw is inserted into the interior of the lower support column and the other end is fixedly connected to the lower connecting plate.

[0020] By adopting the above technical solution, when the leveling component drives the lower connecting plate to move up and down, first, the worker rotates the driving sleeve, and then the driving sleeve can drive the lifting screw to move up and down, and the lifting screw can drive the lower connecting plate fixedly connected thereto to move up and down, so that multiple lower connecting plates above the base are in the same plane; wherein the threaded part of the driving sleeve is less, which can reduce the connection area between the lower support column and the lifting screw, thus making it more labor-saving and smooth for the worker to control the lifting screw to move up and down.

[0021] Optionally, the connecting component includes a support block fixedly arranged below the lower die, a rotating column rotatably connected below the support block, and an upper connecting plate fixedly arranged below the rotating column, and the upper connecting plate and the lower connecting plate are connected by bolts.

[0022] By adopting the above technical solution, when connecting the lower connecting plate and the lower die through the connecting component, first, the worker rotates the upper connecting plate to align the threaded hole on the upper connecting plate with the threaded hole on the lower connecting plate, and then connects the two through bolts, thus realizing the connection between the lower connecting plate and the lower die; wherein the position of the threaded hole on the upper connecting plate can be rotationally adjusted, so that when the upper connecting plate and the lower connecting plate are connected, there is no need to re-drill holes, and after multiple upper connecting plates and lower connecting plates are connected, the rotation of the upper connecting plate itself will be restricted, thus stably supporting the lower connecting plate and enabling the worker to quickly and stably realize the connection between the lower connecting plate and the lower die.

[0023] Optionally, a transition connecting ring is fixedly arranged between the lower support column and the base.

[0024] By adopting the above technical solution, the transition connecting ring increases the connection area between the lower support column and the base, reduces the stress concentration at the connection between the lower support column and the base, and thus improves the connection stability between the lower support column and the base.

[0025] Optionally, the guiding component includes a connecting seat fixed on the stamping machine body and a guiding rod fixed between two connecting seats; the guiding rod is arranged in the vertical direction, and the guiding rod is slidably connected to the pressing plate.

[0026] By adopting the above technical solution, the guiding rod plays a guiding and limiting role in the up-and-down movement of the pressing plate, making it difficult for the pressing plate to shake or deflect, so that the upper die and the lower die are not prone to deflection during the pressing process, making the pressing of the head more uniform.

[0027] Optionally, a jacking hydraulic cylinder is detachably connected above the base, and a jacking column is fixed on the top of the piston rod of the jacking hydraulic cylinder.

[0028] By adopting the above technical solution, after the head stamping is completed, the worker starts the jacking hydraulic cylinder, and the piston rod of the jacking hydraulic cylinder can drive the jacking column to move upward and eject the head in the upper die, so as to facilitate the worker to separate the head from the lower die and quickly take out the head.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The lower adjusting and fixing mechanism not only facilitates the worker to quickly connect the lower die to the base, but also can level the lower die, further facilitating subsequent installation, so that the worker can install efficiently and quickly. At the same time, the upper adjusting and fixing mechanism can not only adjust the position of the upper die to quickly align the upper die with the lower die, but also can quickly connect the upper die to the pressing plate, so as to facilitate the worker to quickly replace the lower die. The worker can quickly replace different models of dies according to the order requirements, thereby reducing the number of idle stamping machines, further reducing the total occupied space of the stamping machine, quickly preparing heads of different sizes and models, and improving the practicability and applicability of the hydraulic stamping machine;

[0031] 2. By the combined use of the upper adjusting component and the lower adjusting component, the connection positions between multiple upper support columns and the upper die can be quickly adjusted, and at the same time, it is convenient to align the upper die with the lower die, so as to facilitate the subsequent precise pressing and forming of the steel plate blank, improving the production quality and efficiency of the head;

[0032] 3. When there is a skew between the upper die and the lower die, and the staff needs to make horizontal and vertical fine adjustments to the connection position between the upper support column and the upper die, first, the staff can loosen the longitudinal bolt and the transverse bolt, and adjust the position of the lower adjustment plate longitudinally or the position of the upper adjustment plate horizontally according to the skew direction, so as to align the upper die and the lower die. Moreover, there is no need to re-drill holes on the lower adjustment plate, the upper adjustment plate and the upper die, thus improving the error tolerance rate when the staff drills holes and the error tolerance rate when installing the upper die. At the same time, it is not easy to cause secondary damage to the lower adjustment plate, the upper adjustment plate and the upper die, and it also improves the efficiency of the staff in connecting the upper support column and the upper die, accelerating the replacement of the upper die;

[0033] 4. When replacing the upper die with different specifications and sizes, due to the change in the sizes of the head and the upper die, the stress points of the upper die need to change, that is, the position of the upper support column needs to be adjusted. The staff can quickly adjust the position of the upper support column in the radial direction of the upper die through the upper adjustment component, so as to quickly adjust the stress points of the upper die;

[0034] 5. The lower adjustment and fixing mechanism can level the lower die, making the lower die keep horizontal. Thus, when the head is pressed subsequently, the produced head is uniform in circumferential shape, improving the quality of the head;

[0035] 6. The position of the threaded hole on the upper connection disk can be adjusted rotationally. Thus, when the upper connection disk is connected to the lower connection disk, there is no need to re-drill holes. Moreover, after multiple upper connection disks are connected to the lower connection disk, the rotation of the upper connection disk itself will be restricted, so as to stably support the lower connection disk, enabling the staff to quickly and stably connect the lower connection disk and the lower die;

[0036] 7. After the head is stamped, the staff starts the ejection hydraulic cylinder. The piston rod of the ejection hydraulic cylinder can drive the ejector pin to move upward and eject the head in the upper die, thus facilitating the staff to separate the head from the lower die and quickly take out the head. Description of the Drawings

[0037] Figure 1 is a schematic structural diagram of the hydraulic press in the embodiment of the present application;

[0038] Figure 2 is a schematic diagram of a partial structure of the hydraulic press;

[0039] Figure 3 is a schematic diagram of a partial structure of the lower adjustment and fixing mechanism;

[0040] Figure 4 is a partial cross-sectional view of the hydraulic press;

[0041] Figure 5 is showingFigure 4 Partial enlarged structural schematic diagram of part A

[0042] Figure 6 It is a partial structural schematic diagram showing the upper adjustment fixing mechanism

[0043] Figure 7 It is a partial exploded structural schematic diagram showing the upper adjustment fixing mechanism

[0044] Explanation of reference numerals: 1, base; 2, stamping machine body; 21, pressing plate; 3, auxiliary hydraulic cylinder; 4, guiding assembly; 41, connecting seat; 42, guiding rod; 5, lower die; 6, upper die; 7, upper adjustment fixing mechanism; 71, connecting block; 711, sliding groove; 72, upper support column; 73, upper adjustment assembly; 731, adjusting block; 732, adjusting screw; 733, handwheel; 734, locknut; 74, lower adjustment assembly; 741, upper adjustment plate; 7411, transverse adjustment groove; 742, lower adjustment plate; 7421, longitudinal adjustment groove; 743, transverse bolt; 744, longitudinal bolt; 8, lower adjustment fixing mechanism; 81, lower support column; 82, lower connecting plate; 83, leveling assembly; 831, driving sleeve; 832, lifting screw; 833, rotating rod; 84, connecting assembly; 841, support block; 842, rotating column; 843, upper connecting plate; 9, ejecting hydraulic cylinder; 91, ejecting column Detailed description of the specific implementation mode

[0045] The following will further describe the present application in detail with reference to the attached Figure 1-7 drawings

[0046] The embodiment of the present application discloses a small-sized head hydraulic stamping machine. Refer to Figure 1 and Figure 2, The hydraulic press includes a base 1. Above the base 1, a press body 2 is provided. On the press body 2, a pressing plate 21 is provided, and the pressing plate 21 is arranged horizontally. Between the press body 2 and the pressing plate 21, a plurality of auxiliary hydraulic cylinders 3 are provided, and the auxiliary hydraulic cylinders 3 are used to drive the pressing plate 21 to move up and down in the vertical direction. Between the press body 2 and the pressing plate 21, a guiding assembly 4 is also provided, and the guiding assembly 4 is used to guide and limit the movement of the pressing plate 21. Above the base 1, a lower die 5 placed horizontally is arranged at intervals. Above the lower die 5, an upper die 6 placed horizontally is provided. The upper die 6 and the lower die 5 are in contact with each other, and the upper die 6 and the lower die 5 are located between the base 1 and the pressing plate 21. Between the upper die 6 and the pressing plate 21, an upper adjusting and fixing mechanism 7 is provided, and the upper adjusting and fixing mechanism 7 is used to connect the upper die 6 and the pressing plate 21 and can adjust the connection position of the two in the transverse and longitudinal directions. Between the base 1 and the lower die 5, a lower adjusting and fixing mechanism 8 is provided, and the lower adjusting and fixing mechanism 8 is used to level the lower die 5 and quickly connect the two. Above the base 1, a jacking hydraulic cylinder 9 is detachably connected by bolts, and at the top of the piston rod of the jacking hydraulic cylinder 9, a jacking column 91 is fixedly provided.

[0047] When the staff presses the head by the press, first place the steel plate blank above the lower die 5, then start the auxiliary hydraulic cylinder 3 to drive the pressing plate 21 to move downward. Under the guiding action of the guiding assembly 4, the pressing plate 21 drives the upper adjusting and fixing mechanism 7 and the upper die 6 to move downward to the top of the lower die 5 and fix the steel plate blank. Subsequently, start the press body 2, and the hydraulic cylinder on the press body 2 drives the punching head to punch the steel plate blank, so that the head is quickly formed. Then open the upper die 6 and the lower die 5, and start the jacking hydraulic cylinder 9. The piston rod of the jacking hydraulic cylinder 9 can drive the jacking column 91 to move upward and eject the head in the upper die 6, so as to facilitate the staff to separate the head from the lower die 5 and quickly take out the head, completing the preliminary forming of the head.

[0048] When other sizes and models of head covers need to be prepared according to the order requirements, first, the staff quickly releases the connection to the lower mold 5 through the lower adjustment and fixing mechanism 8, replaces the lower mold 5 with the required size, and then levels the lower mold 5 through the lower adjustment and fixing mechanism 8 to further facilitate subsequent installation. At the same time, the base 1 is quickly connected to the lower mold 5. Subsequently, the staff releases the connection to the upper mold 6 through the upper adjustment and fixing mechanism 7, replaces the upper mold 6 with the required size, and then connects the lower mold 5 through the upper adjustment and fixing mechanism 7. At the same time, the installation position of the upper mold 6 is adjusted according to the position of the lower mold 5 to align the upper mold 6 with the lower mold 5, and the quick replacement of the upper mold 6 and the lower mold 5 can be completed. The staff can quickly replace different models of molds according to the order requirements, thereby reducing the number of idle stamping machines, further reducing the total occupied space of the stamping machines, and quickly preparing head covers of different sizes and models.

[0049] Refer to Figure 1 , the guiding component 4 includes a connecting seat 41 fixedly arranged on the stamping machine body 2. A guiding rod 42 is fixedly arranged between the two connecting seats 41. The guiding rod 42 is arranged in the vertical direction and is slidably connected to the pressing plate 21. The guiding rod 42 plays a guiding and limiting role in the up and down movement of the pressing plate 21, so that the pressing plate 21 is not prone to shaking or skewing when pressing down, so that the upper mold 6 and the lower mold 5 are not prone to skewing during the pressing process, making the pressing of the head cover more uniform and improving the quality of the head cover.

[0050] Refer to Figure 2 and Figure 3 , the lower adjustment and fixing mechanism 8 includes a plurality of lower support columns 81 fixedly arranged above the base 1. A lower connecting disc 82 is arranged at intervals above the lower support columns 81. A leveling component 83 is arranged between the lower support columns 81 and the lower connecting disc 82. The leveling component 83 is used to drive the lower connecting disc 82 to move up and down. A connecting component 84 is arranged between the lower connecting disc 82 and the lower mold 5. The connecting component 84 is used to connect the lower connecting disc 82 and the lower mold 5. A transition connecting ring is fixedly arranged between the lower support columns 81 and the base 1. The transition connecting ring is used to increase the connecting area between the lower support columns 81 and the base 1, reduce the stress concentration at the connection between the lower support columns 81 and the base 1, and improve the connection stability between the lower support columns 81 and the base 1.

[0051] Refer to Figure 3 , the leveling component 83 includes a driving sleeve 831 rotatably connected to the top of the lower support column 81. A lifting screw rod 832 is arranged between the driving sleeve 831 and the lower support column 81. The lifting screw rod 832 is threadedly connected to the inner side wall of the driving sleeve 831, and one end of the lifting screw rod 832 is inserted into the inside of the lower support column 81 and the other end is fixedly connected to the lower connecting disc 82. A plurality of rotating rods 833 are also fixedly arranged on the outer side of the driving sleeve 831.

[0052] Refer to Figure 3, the connecting component 84 includes a support block 841 fixedly arranged below the lower die 5. A rotating column 842 is rotatably connected below the support block 841. An upper connecting disk 843 is fixedly arranged below the rotating column 842. The upper connecting disk 843 and the lower connecting disk 82 are connected by bolts.

[0053] When connecting the base 1 and the lower die 5 through the lower adjusting and fixing mechanism 8, first, the staff rotates the rotating rod 833. Then, the rotating rod 833 drives the driving sleeve 831 to rotate. The driving sleeve 831 drives the lifting screw rod 832 to move up and down. The lifting screw rod 832 can drive the lower connecting disk 82 fixedly connected thereto to move up and down, so that a plurality of lower connecting disks 82 above the base 1 are in the same plane. Then, the staff places the lower die 5 above the lower connecting disk 82 and rotates the upper connecting disk 843 to align the threaded holes on the upper connecting disk 843 with the threaded holes on the lower connecting disk 82. Subsequently, the two are connected by bolts, and the connection between the base 1 and the lower die 5 can be realized. The position of the threaded holes on the upper connecting disk 843 can be rotationally adjusted, so that when the upper connecting disk 843 is connected to the lower connecting disk 82, there is no need to re-drill holes. And after a plurality of upper connecting disks 843 are connected to the lower connecting disk 82, the rotation of the upper connecting disk 843 itself will be restricted, so as to stably support the lower connecting disk 82, enabling the staff to quickly and stably realize the connection between the lower connecting disk 82 and the lower die 5. And the leveling component 83 can level the lower die 5 to keep the lower die 5 horizontal, so that when the head is pressed subsequently, the produced head is uniform in circumferential shape, improving the quality of the head.

[0054] Refer to Figure 4 and Figure 5 , the upper adjusting and fixing mechanism 7 includes four connecting blocks 71 fixedly arranged below the pressing plate 21. The four connecting blocks 71 are evenly spaced along the circumference of the upper die 6 to the bottom of the pressing plate 21, and the connecting blocks 71 are strip-shaped. The length direction of the connecting blocks 71 is consistent with the radial direction of the upper die 6. A upper support column 72 is slidably connected below the connecting block 71. An upper adjusting component 73 is arranged between the upper support column 72 and the connecting block 71. The upper adjusting component 73 is used to adjust the position of the upper support column 72 along the radial direction of the upper die 6. A lower adjusting component 74 is arranged between the upper support column 72 and the top of the upper die 6. The lower adjusting component 74 can adjust the connection position between the upper support column 72 and the top of the upper die 6 in the horizontal and vertical directions and connect the two.

[0055] Refer to Figure 6 and Figure 7, the lower adjusting assembly 74 includes an upper adjusting plate 741 fixedly arranged below the upper support column 72. A lower adjusting plate 742 is arranged on the top of the upper die 6, and the lower adjusting plate 742 is in abutment with the upper adjusting plate 741. A plurality of transverse bolts 743 are arranged between the upper adjusting plate 741 and the lower adjusting plate 742. A plurality of horizontally arranged transverse adjusting grooves 7411 are formed on the upper adjusting plate 741, and the transverse bolts 743 penetrate through the transverse adjusting grooves 7411 and are threadedly connected with the lower adjusting plate 742; a plurality of longitudinal bolts 744 are arranged between the lower adjusting plate 742 and the upper die 6. A plurality of longitudinally arranged longitudinal adjusting grooves 7421 are formed on the lower adjusting plate 742. Both the transverse adjusting grooves 7411 and the longitudinal adjusting grooves 7421 are arranged as waist-shaped holes, and the transverse adjusting grooves 7411 and the longitudinal adjusting grooves 7421 are perpendicular to each other; the longitudinal bolts 744 penetrate through the longitudinal adjusting grooves 7421 and are threadedly connected with the top of the upper die 6.

[0056] Referring to Figure 4 and Figure 5 , the upper adjusting assembly 73 includes an adjusting block 731 fixedly arranged on the top of the upper support column 72. The adjusting block 731 is a T-shaped block and can also be a dovetail block, etc. A sliding groove 711 is formed in the connecting block 71 along its length direction, and the adjusting block 731 is located in the sliding groove 711 and slides therein and cannot be disengaged downward from the sliding groove 711. An adjusting screw rod 732 is rotatably connected to the connecting block 71. The adjusting screw rod 732 is arranged along the length direction of the connecting block 71, and the adjusting screw rod 732 is threadedly connected with the adjusting block 731. One end of the adjusting screw rod 732 penetrates through the connecting block 71 and is located outside the connecting block 71 and is fixedly provided with a hand wheel 733. A locknut 734 is also threadedly connected to the adjusting screw rod 732, and the locknut 734 abuts against one side of the connecting block 71 for further locking the adjusting screw rod 732 to improve the stability of the upper adjusting assembly 73.

[0057] When the staff needs to replace the upper die 6 with different specifications and sizes, due to the change in the sizes of the head and the upper die 6, the stress points of the upper die 6 need to change, that is, the position of the upper support column 72 needs to be adjusted. When the pressing plate 21 and the upper die 6 are adjusted and connected through the upper adjusting and fixing mechanism 7, first, the staff rotates the hand wheel 733, the hand wheel 733 drives the adjusting screw rod 732 to rotate, and the adjusting screw rod 732 drives the adjusting block 731 threadedly connected thereto to slide along the length direction of the connecting block 71 to a connecting position adapted to the upper die 6, thus completing the rough adjustment of the position of the upper support column 72, thereby adjusting the stress points of the upper die 6. Then, the lower adjusting assembly 74 is used to finely adjust the connecting positions of the upper support column 72 and the top of the upper die 6 horizontally and longitudinally, align the upper die 6 with the lower die 5, and connect the upper support column 72 and the upper die 6, and the replacement of the upper die 6 can be realized.

[0058] When connecting the upper support column 72 to the top of the upper mold 6 through the lower adjustment component 74, first tap a threaded hole on the top of the upper mold 6. Then, abut the lower adjustment plate 742 against the upper part of the upper mold 6, and pass the longitudinal bolt 744 through the longitudinal adjustment slot 7421 and connect it to the threaded hole above the upper mold 6. Next, abut the upper adjustment plate 741 against the lower adjustment plate 742, and pass the transverse bolt 743 through the transverse adjustment slot 7411 and connect it to the threaded hole above the lower adjustment plate 742, thus realizing the connection between the upper support column 72 and the upper mold 6. If there is a skew between the upper mold 6 and the lower mold 5 and the staff needs to make horizontal and vertical fine adjustments to the connection position between the upper support column 72 and the upper mold 6, first the staff can loosen the longitudinal bolt 744 and the transverse bolt 743, and adjust the position of the lower adjustment plate 742 longitudinally or adjust the position of the upper adjustment plate 741 horizontally according to the skew direction, so as to align the upper mold 6 with the lower mold 5. Then tighten the longitudinal bolt 744 and the transverse bolt 743, and the horizontal and vertical fine adjustments of the connection position between the upper support column 72 and the upper mold 6 can be completed. And during the whole adjustment process, there is no need to re-drill holes on the lower adjustment plate 742, the upper adjustment plate 741 and the upper mold 6, thus improving the error tolerance rate of the staff when drilling holes and the error tolerance rate when installing the upper mold 6, and at the same time, it is not easy to cause secondary damage to the lower adjustment plate 742, the upper adjustment plate 741 and the upper mold 6.

[0059] The implementation principle of a small head hydraulic stamping machine in an embodiment of this application is as follows: When an operator presses a head through the stamping machine, first place the steel plate blank above the lower die 5, then start the auxiliary hydraulic cylinder 3 to drive the pressing plate 21 to move downward. Under the guiding action of the guiding rod 42, the pressing plate 21 drives the upper die 6 to move downward to the top of the lower die 5 and fix the steel plate blank. Subsequently, start the stamping machine body 2, and the hydraulic cylinder on the stamping machine body 2 drives the stamping head to stamp the steel plate blank to quickly form the head. Then, open the upper die 6 and the lower die 5, and start the ejecting hydraulic cylinder 9 to take out the head, completing the preliminary forming of the head; If it is necessary to prepare heads of other size models according to the order requirements, first, the operator quickly releases the connection of the lower die 5 through the connection component 84 and replaces the lower die 5 with the required size. Then, level the lower die 5 through the leveling component 83, and at the same time quickly connect the base 1 with the lower die 5. Subsequently, the operator releases the connection of the upper die 6 through the upper adjustment component 73 and the lower adjustment component 74 and replaces the upper die 6 with the required size. At the same time, adjust the installation position of the upper die 6 according to the position of the lower die 5 to align the upper die 6 with the lower die 5, and the quick replacement of the upper die 6 and the lower die 5 can be completed; Among them, the lower adjustment and fixing mechanism 8 not only facilitates the operator to quickly connect the lower die 5 with the base 1, but also can level the lower die 5, further facilitating subsequent installation, so that the operator's installation is efficient and fast. At the same time, the upper adjustment and fixing mechanism 7 can not only adjust the position of the upper die 6 to quickly align the upper die 6 with the lower die 5, but also quickly connect the upper die 6 with the pressing plate 21, thus facilitating the operator to quickly replace the lower die 5. The operator can quickly replace different models of dies according to the order requirements, thereby reducing the number of idle stamping machines, further reducing the total occupied space of the stamping machines, quickly preparing heads of different size models, and improving the practicability and applicability of the hydraulic stamping machine.

[0060] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A small-sized head hydraulic stamping machine, characterized in that: It includes a base (1), a stamping machine body (2) arranged above the base (1), a pressing plate (21) arranged on the stamping machine body (2), a plurality of auxiliary hydraulic cylinders (3) arranged between the stamping machine body (2) and the pressing plate (21), a lower die (5) arranged at intervals above the base (1), an upper die (6) abutted above the lower die (5), an upper adjusting and fixing mechanism (7) arranged between the upper die (6) and the pressing plate (21) for connecting the two and simultaneously adjusting the connection position of the two in the transverse and longitudinal directions, a lower adjusting and fixing mechanism (8) arranged between the base (1) and the lower die (5) for leveling the lower die (5) and simultaneously quickly connecting the two, and a guiding component (4) arranged between the stamping machine body (2) and the pressing plate (21) for guiding and limiting the movement of the pressing plate (21); the upper die (6) and the lower die (5) are located between the base (1) and the pressing plate (21); The upper adjusting and fixing mechanism (7) includes four connecting blocks (71) fixedly arranged below the pressing plate (21), an upper support column (72) slidably connected below the connecting blocks (71), an upper adjusting component (73) arranged between the upper support column (72) and the connecting blocks (71) for adjusting the position of the upper support column (72) in the radial direction of the upper die (6), and a lower adjusting component (74) arranged between the upper support column (72) and the top of the upper die (6) for adjusting the connection position in the transverse and longitudinal directions and connecting the two; The four connecting blocks (71) are evenly arranged at intervals along the circumferential direction of the upper die (6) to the bottom of the pressing plate (21), and the connecting blocks (71) are strip-shaped, and the length direction of the connecting blocks (71) is consistent with the radial direction of the upper die (6).

2. The small-sized head hydraulic stamping machine according to claim 1, characterized in that: The lower adjusting component (74) includes an upper adjusting plate (741) fixedly arranged below the upper support column (72), a lower adjusting plate (742) abutted against the top of the upper die (6), a plurality of transverse bolts (743) arranged between the upper adjusting plate (741) and the lower adjusting plate (742), and a plurality of longitudinal bolts (744) arranged between the lower adjusting plate (742) and the upper die (6); A plurality of horizontally arranged transverse adjusting grooves (7411) are formed on the upper adjusting plate (741), a plurality of longitudinally arranged longitudinal adjusting grooves (7421) are formed on the lower adjusting plate (742), both the transverse adjusting grooves (7411) and the longitudinal adjusting grooves (7421) are in the shape of waist-shaped holes, and the transverse adjusting grooves (7411) and the longitudinal adjusting grooves (7421) are perpendicular to each other; the transverse bolts (743) penetrate through the transverse adjusting grooves (7411) and are threadedly connected to the lower adjusting plate (742), and the longitudinal bolts (744) penetrate through the longitudinal adjusting grooves (7421) and are threadedly connected to the top of the upper die (6).

3. The small-sized head hydraulic stamping machine according to claim 1, characterized in that: The upper adjusting assembly (73) includes an adjusting block (731) fixedly arranged at the top of the upper support column (72), and an adjusting screw rod (732) rotatably connected to the connecting block (71); The connecting block (71) is provided with a sliding groove (711) along its length direction. The adjusting block (731) is located inside the sliding groove (711) and slides therein without being able to break away downward from the sliding groove (711). The adjusting screw rod (732) is arranged along the length direction of the connecting block (71), and the adjusting screw rod (732) is threadedly connected to the adjusting block (731).

4. A small-sized head hydraulic stamping machine according to claim 1, characterized in that: The lower adjusting and fixing mechanism (8) includes a plurality of lower support columns (81) fixedly arranged above the base (1), a lower connecting disc (82) arranged at intervals above the lower support columns (81), a leveling assembly (83) arranged between the lower support columns (81) and the lower connecting disc (82) for driving the lower connecting disc (82) to move up and down, and a connecting assembly (84) arranged between the lower connecting disc (82) and the lower die (5) for connecting the two.

5. A small-sized head hydraulic stamping machine according to claim 4, characterized in that: The leveling assembly (83) includes a driving sleeve (831) rotatably connected to the top of the lower support column (81), and a lifting screw rod (832) threadedly connected to the driving sleeve (831); one end of the lifting screw rod (832) is inserted into the interior of the lower support column (81), and the other end is fixedly connected to the lower connecting disc (82).

6. A small-sized head hydraulic stamping machine according to claim 4, characterized in that: The connecting assembly (84) includes a support block (841) fixedly arranged below the lower die (5), a rotating column (842) rotatably connected below the support block (841), and an upper connecting disc (843) fixedly arranged below the rotating column (842). The upper connecting disc (843) is connected to the lower connecting disc (82) by bolts.

7. A small-sized head hydraulic stamping machine according to claim 4, characterized in that: A transition connection ring is fixedly arranged between the lower support column (81) and the base (1).

8. A small-sized head hydraulic stamping machine according to any one of claims 1-7, characterized in that: The guiding assembly (4) includes a connecting seat (41) fixedly arranged on the stamping machine body (2), and a guiding rod (42) fixedly arranged between the two connecting seats (41); the guiding rod (42) is arranged in the vertical direction, and the guiding rod (42) is slidably connected to the pressing plate (21).

9. A small-sized head hydraulic stamping machine according to any one of claims 1-7, characterized in that: A jacking hydraulic cylinder (9) is detachably connected above the base (1), and a jacking column (91) is fixedly arranged at the top of the piston rod of the jacking hydraulic cylinder (9).

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