Cargo box assembly heavy pressing tool capable of rapidly changing die

Abstract

The invention relates to the technical field of cargo box production tools, in particular to a cargo box assembly heavy pressing tool capable of quickly changing a die, which comprises a base, a square frame is arranged at the center position of the top end of the base, a lower die is arranged in the square frame, and openings are formed in the left side wall and the right side wall of the square frame. Two openings are formed in the front end face of the square frame, prying assemblies are installed in the two openings in the square frame, two grooves are formed in the side wall of the front end face of the square frame, linkage assemblies are arranged in the two grooves in the square frame, a fixing frame is arranged on the periphery of the square frame, and the fixing frame is fixedly installed at the top end of the base. A plurality of hydraulic push rods are arranged on a top plate of the fixing frame; the hydraulic push rod pushes the threaded sleeve to move downwards, so that the threaded sleeve can push the shifting plate and the prying plates to rotate, the two prying plates can pry the lower mold to be separated from the interior of the square frame, then the lower mold is taken out of the square frame to be replaced, and the lower mold can be conveniently pushed to slide away from the top end of the square frame through the balls on the prying plates.

Description

Technical Field

[0001] The present invention relates to the technical field of production tooling for cargo boxes, and particularly to a heavy pressing tooling for a cargo box assembly capable of quickly changing molds. Background Art

[0002] During the production of a truck's cargo box, iron plates are often used as raw materials and placed on the heavy pressing tooling for cargo box production. The molds on the heavy pressing tooling are used to press-cast various fittings of the cargo box from the iron plates, and in the later stage, the various fittings are welded together to form the cargo box by welding.

[0003] During the installation of some existing molds on the heavy pressing tooling, the molds are placed in a square box on the heavy pressing tooling that matches the size of the molds for positioning and installation. When the molds need to be replaced later, since the molds are located inside the square box and there is no gap between them, it is difficult to quickly remove the molds from the square box for replacement, which needs to be improved. Summary of the Invention

[0004] The purpose of the present invention is to provide a heavy pressing tooling for a cargo box assembly capable of quickly changing molds to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A heavy pressing tooling for a cargo box assembly capable of quickly changing molds includes a base. At the center position of the top end of the base, there is a square box. A lower mold is arranged inside the square box. Openings are provided on the left and right side walls of the square box, and a prying component is installed in each of the two openings on the square box. Two grooves are provided on the front side wall of the square box, and a linkage component is arranged in each of the two grooves on the square box. A fixing frame is arranged around the square box, and the fixing frame is fixedly installed on the top end of the base. On the top plate of the fixing frame, there are several hydraulic push rods. The bottom ends of the several hydraulic push rods are jointly connected to a material clamping component. An upper mold is arranged on the material clamping component. Openings are provided on the left and right side walls of the fixing frame, and three columns are fixedly installed in each opening.

[0007] The material clamping component includes two lifting blocks. On the side of each lifting block close to the other, there is an L-shaped mounting plate fixedly installed. A translation rod is arranged on each L-shaped mounting plate. At the bottom end of the translation rod, there is a threaded rod. A threaded sleeve is movably sleeved on the outer wall of the threaded rod. On the side of each of the two translation rods close to the other, there is a clamping frame. Between the two clamping frames, there is a fixing plate. Grooves are provided on the left and right sides of the fixing plate, and movable plates are arranged in the grooves.

[0008] At the top end of the fixing plate, there are two limiting columns, and insertion holes matching the diameter size of the limiting columns are arranged on the movable plates.

[0009] The prying assembly includes two U-shaped frames, the side walls of the two U-shaped frames are each provided with a through hole, and a movable rod is movably installed in the through hole, the outer walls of the two movable rods are each fixedly installed with a ring, the side walls of the rings are movably fitted with a limit baffle, and the limit baffle is fixedly connected to the square frame, one side wall of the two movable rods is each fixedly connected with a mounting plate, a rotating shaft is provided between the two mounting plates, the outer wall of the rotating shaft is fixedly connected with a toggle plate and a prying plate, and the prying plate is provided with a plurality of hemispherical grooves, and balls are provided in the hemispherical grooves.

[0010] The linkage assembly includes a rotating rod, a plurality of mounting blocks are movably mounted on the outer wall of the rotating rod, and the mounting blocks are fixedly connected to the front end side wall of the square frame, a linkage plate and an oblique mounting plate are fixedly mounted on the outer wall of the rotating rod, a slide groove is provided at the top end of the oblique mounting plate, and an extension plate is slidably mounted in the slide groove, and the extension plate is connected to the inner wall of the slide groove on the oblique mounting plate through a plurality of connecting springs.

[0011] A plurality of clamping columns are arranged on the left and right side walls of the installation plate, and a plurality of clamping grooves matching the clamping columns are arranged on the inner walls of the limit baffle plate and the U-shaped frame.

[0012] A hidden groove is arranged at the top of the base, and the width of the hidden groove is the same as the width of the prying plate.

[0013] Three through holes are arranged at the upper and lower ends of the two lifting blocks, and the diameter of the through holes is the same as the diameter of the column. The vertical lifting movement of the lifting block is ensured by inserting the column into the through holes on the lifting block.

[0014] A plurality of spiral springs are arranged on the outer wall of the rotating rod, and two ends of the plurality of spiral springs are respectively connected with the rotating rod and the set block.

[0015] Two limiting bars are arranged at the top of the square frame, and the two limiting bars are fixedly connected to the top side wall of the square frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention pushes the threaded sleeve downward through the hydraulic push rod, so that the threaded sleeve can push the toggle plate and the prying plate to rotate, so that the two prying plates can pry the lower mold out of the frame, making it convenient to take the lower mold out of the frame for replacement, and the ball bearings on the prying plate can conveniently push the lower mold to slide away from the top of the frame, so that the mold on the heavy pressing tooling can be quickly and conveniently replaced.

[0018] The rolling steel ball at the bottom of the threaded sleeve contacts the tilted toggle plate that is rotated downward. The rolling steel ball will roll and cause the threaded sleeve to slide, causing the clamping frame to deviate to both sides to loosen the clamping of the upper mold, making it easier to replace the upper mold.

[0019] When the toggle plate rotates downward, it contacts the linkage plate to rotate the rotating rod. The linkage plate and the oblique plate will start to rotate synchronously to adjust the angle, and push the extension plate to the bottom end of the lower mold through the connecting spring. Because the oblique plate is in an inclined state, it is convenient to push the lower mold to slide directly above the frame later. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the local structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the block structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the prying assembly of the present invention.

[0025] Figure 6 It is a schematic diagram of the local structure of the prying assembly of the present invention.

[0026] Figure 7 It is a schematic diagram of the rotating shaft structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the linkage component structure of the present invention.

[0028] In the figure: 1. base; 2. fixed frame; 3. frame; 4. lower mold; 5. prying assembly; 6. linkage assembly; 7. hydraulic push rod; 8. clamping assembly; 9. upper mold; 10. lifting block; 11. column; 12. L-shaped mounting plate; 13. translation rod; 14. threaded rod; 15. threaded sleeve; 16. clamping frame; 17. fixed plate; 18. movable plate; 19. limiting column; 20. U-shaped frame; 21. movable rod; 22. collar; 23. limiting baffle; 24. mounting plate; 25. rotating shaft; 26. toggle plate; 27. prying plate; 28. ball bearing; 29. ​​rotating rod; 30. set block; 31. linkage plate; 32. inclined plate; 33. extension plate; 34. connecting spring; 35. limiting strip. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a heavy pressing tooling for a cargo box assembly capable of quickly changing molds. As Figures 1 - 3 shown in, it includes a base 1. A square frame 3 is fixedly installed at the top of the base 1. Limiting strips 35 are fixedly installed on the left and right side walls at the top of the square frame 3. A lower mold 4 is movably inserted into the square frame 3. Openings are provided on the left and right side walls of the square frame 3. Levering assemblies 5 are installed in the two openings on the square frame 3. Two grooves are provided on the top wall of the front surface of the square frame 3, and linkage assemblies 6 are installed in the grooves. A fixing frame 2 is arranged around the square frame 3, and the fixing frame 2 is fixedly installed at the top of the base 1. The fixing frame 2 is in a U-shaped shape. A plurality of hydraulic push rods 7 are arranged on the inner walls of the top of the fixing frame 2. A clamping assembly 8 is connected to the bottom ends of the plurality of hydraulic push rods 7. The material is placed on the top of the lower mold 4, and the lower mold 4 is pushed by the hydraulic push rods 7 to cooperate with the upper mold 9 to press the material into spare parts required for cargo box production. An upper mold 9 is arranged on the clamping assembly 8. Openings are provided on the left and right side walls of the fixing frame 2, and three columns 11 are fixedly installed in the openings.

[0031] Please refer to Figure 4, the material clamping assembly 8 includes two lifting blocks 10. Three through holes are provided at both the upper and lower ends of the lifting block 10, and the diameter of the through holes is the same as the diameter of the column 11. By inserting the column 11 into the through holes on the lifting block 10, the vertical lifting movement of the lifting block 10 can be ensured. L-shaped mounting plates 12 are fixedly installed on one side of the two lifting blocks 10 close to each other. Through holes are provided on the side walls of the two L-shaped mounting plates 12 close to each other, and translation rods 13 are slidably installed in the through holes. Threaded rods 14 are fixedly installed on the side walls at the bottom ends of the translation rods 13, and threaded sleeves 15 are movably sleeved on the outer walls of the threaded rods 14. Grooves are provided at the bottom ends of the threaded sleeves 15, and rolling steel balls are movably installed in the grooves. Clamping frames 16 are fixedly installed on one side of the two translation rods 13 close to each other. Limiting plates are provided at both the upper and lower ends of the two clamping frames 16. The bottom end of the upper die 9 is supported by the limiting plate at the bottom end of the clamping frame 16, and the upward movement of the upper die 9 is restricted by the limiting plate at the top end of the clamping frame 16. Protrusions are provided on the front and rear side walls of the clamping frame 16. When the clamping frame 16 clamps the upper die 9, the upper die 9 can be prevented from shaking back and forth through the protrusions. A fixing plate 17 is provided between the two clamping frames 16. The top end of the fixing plate 17 is fixedly connected to a plurality of hydraulic push rods 7. The bottom end of the fixing plate 17 is at the same horizontal line as the bottom end of the limiting plate at the top end of the clamping frame 16, so that the bottom end of the fixing plate 17 can fit the upper die 9. Grooves are provided on both the left and right side walls of the fixing plate 17, and movable plates 18 are movably inserted into the grooves. Two holes are provided on the top plate of the fixing plate 17, and limiting columns 19 are movably inserted into the holes. Insertion holes with diameters matching those of the limiting columns 19 are provided at the top ends of the movable plates 18. When the movable plates 18 are inserted into the grooves on the fixing plate 17 and the limiting columns 19 pass through the holes on the fixing plate 17 and are inserted into the insertion holes on the movable plates 18, the positions of the movable plates 18 can be fixed, preventing them from easily falling off during the use of the upper die 4 and the lower die 9.

[0032] Please refer to Figures 5 - 7The prying assembly 5 includes two U-shaped frames 20, and the two U-shaped frames 20 are fixedly installed on the outer wall of the square frame 3. The side walls of the U-shaped frames 20 are provided with through holes, and a movable rod 21 is slidably installed in the through holes. The outer walls of the two movable rods 21 are fixedly installed with a collar 22, and the outer walls of the collar 22 are movably fitted with a limited baffle 23, and the limited baffle 23 is fixedly installed on the square frame 3. One side wall of the two movable rods 21 is fixedly connected with a mounting plate 24, and the left and right side walls of the mounting plate 24 are fixedly installed with a plurality of clamping columns, and the limited baffle 23 and the U-shaped frame 20 are fixedly connected with the mounting plate 24. The inner wall is provided with a plurality of card slots matching the card column. By inserting the card column into the card slot, the mounting plate 24 can be connected to the limit baffle 23 or the U-shaped frame 20 as a whole, so that the rotating shaft 25 can be fixed at different positions for use. The inner walls on both sides of the opening on the frame 3 are provided with sliding grooves. The height dimension of the sliding groove is the same as the diameter dimension of the mounting plate 24. The mounting plate 24 is slidably installed in the sliding groove to prevent the mounting plate 24 from shaking easily. A rotating shaft 25 is provided between the two mounting plates 24, and the sides of the two mounting plates 24 close to each other are provided with a diameter dimension of the same as the rotating shaft 25. Matching grooves, by extending the rotating shaft 25 into the grooves on the two mounting plates 24, it is easy to ensure that the rotating shaft 25 can rotate, and the outer wall of the rotating shaft 25 is fixedly connected with a toggle plate 26 and a prying plate 27, and the prying plate 27 is L-shaped, and the top of the base 1 is provided with two hidden grooves, and the width of the hidden groove is the same as the width of the prying plate 27. By placing the prying plate 27 into the hidden groove, it is possible to avoid the prying plate 27 affecting the mold 4 in the square frame 3. The stable installation in the square frame 3, and the length of the hidden groove is three times longer than the length of the bottom plate of the prying plate 27. Centimeters, so that when the movable rod 21 slides to make the ring 22 fit the inner wall of the U-shaped frame 20, a movable space is reserved for the prying plate 27 to avoid the prying plate 27 being close to the side wall of the hidden groove close to the center of the base 1, and it is not easy to tilt upward and extend out of the hidden groove. A plurality of hemispherical grooves are arranged on the side wall of one side of the prying plate 27, and balls 28 are arranged in the hemispherical grooves. The balls 28 can prevent the prying plate 27 from being unable to slide on the surface of the prying plate 27 during the process of tilting the lower mold 4 due to excessive friction between the prying plate 27 and the lower mold 4.

[0033] See also Figure 8The linkage assembly 6 includes a rotating rod 29, and a plurality of set blocks 30 are movably set on the outer wall of the rotating rod 29, and the outer wall of the rotating rod 29 and the set blocks 30 are connected by a spiral spring. When the lower mold 4 is located in the square frame 3, the spiral spring can ensure that the inclined plate 32 is located in the groove on the side wall of the front end surface of the square frame 3. The set blocks 30 are fixedly connected to the side wall of the front end surface of the square frame 3, and a linkage plate 31 and an inclined plate 32 are fixedly installed on the outer wall of the rotating rod 29, and the linkage plate 31 extends to the bottom of the toggle plate 26 and is located in the movable space for the toggle plate 26 to rotate downward, so as to drive the linkage plate 31 to rotate during the rotation of the toggle plate 26, and the inclined plate 32 is placed in the groove of the side wall of the front end surface of the square frame 3, and The width of the groove is the same as the width of the inclined plate 32. A slide groove is provided at the top of the inclined plate 32, and an extension plate 33 is slidably installed in the slide groove. Anti-slip sliding grooves are provided on the inner walls on the left and right sides of the slide groove, and an anti-slip strip is slidably installed in the anti-slip sliding groove. The anti-slip strip is fixedly connected to the extension plate 33 as a whole to prevent the extension plate 33 from escaping from the slide groove, and the extension plate 33 is connected to the inner wall of the slide groove on the inclined plate 32 by a number of connecting springs 34. After the lower mold 4 is pried out of the frame 3 by the prying plate 27, the extension plate 33 will be pushed by the connecting spring 34 to extend to the bottom end of the lower mold 4. At this time, the top plate of the extension plate 33 is in a state of small angle inclination, which is convenient for the lower mold 4 to be pushed out of the frame 3 by the staff.

[0034] When the present invention is in use, when it is necessary to replace the lower mold 4 and the upper mold 9, the threaded sleeve 15 is controlled to rotate downward on the outer wall of the threaded rod 14, the overall length of the threaded sleeve 15 and the threaded rod 14 exposed to the outside is adjusted, and then the limit column 19 is pulled out from the fixed plate 17 to disconnect the restriction on the movable plate 18, and the movable rod 21 is pulled to fix the collar 22 on the U-shaped frame 20, so that the hydraulic push rod 7 can be controlled to move downward, and the bottom end of the threaded sleeve 15 contacts the bottom end of the toggle plate 26, and the toggle plate 26 rotates downward with the rotating shaft 25, so that the two prying plates 27 can pry the lower mold 4 upward to move out of the frame 3, and at this time, the toggle plate 26 will contact the linkage plate 31 during the downward rotation process, so that the linkage plate 31, the inclined plate 32, and the rotating plate 32 can be connected. The rod 29 rotates and pushes the extension plate 33 to move to the bottom end of the lower mold 4 through the connecting spring 34. In the process of the hydraulic push rod 7 pushing the threaded sleeve 15 to continue to move downward, the top of the toggle plate 26 rotates downward and tilts. The bottom end of the threaded sleeve 15 contacts the tilted toggle plate 26 and in the process of continuous downward movement, the rolling steel ball at the bottom end of the threaded sleeve 15 will roll and drive the threaded sleeve 15 to slide, and cause the translation rod 13 and the clamping frame 16 to move and break away from the contact with the upper mold 9, so that the upper mold 9 and the lower mold 4 are fitted together and located at the top of the extension plate 33, and then the upper mold 9 and the lower mold 4 are pushed manually to slide toward the front end surface of the base 1, and then the new mold can be replaced by the mold changing trolley in the prior art.

[0035] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A container assembly heavy-pressing tool capable of rapid mold change, comprising a base (1), characterized in that: A square frame (3) is provided at the center position of the top end of the base (1), a lower mold (4) is provided in the square frame (3), openings are provided on the left and right side walls of the square frame (3), and prying components (5) are installed in the two openings on the square frame (3), two grooves are provided on the front end side wall of the square frame (3), and linkage components (6) are provided in the two grooves on the square frame (3), a fixed frame (2) is provided on the periphery of the square frame (3), the fixed frame (2) is fixedly installed on the top end of the base (1), and a plurality of hydraulic push rods (7) are provided on the top plate of the fixed frame (2), and a clamping component (8) is commonly connected to the bottom ends of the plurality of hydraulic push rods (7), and an upper mold (9) is provided on the clamping component (8), and openings are provided on the left and right side walls of the fixed frame (2), and three columns (11) are fixedly installed in the openings.

2. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 1, characterized in that: The clamping assembly (8) comprises two lifting blocks (10), and an L-shaped mounting plate (12) is fixedly mounted on one side of the two lifting blocks (10) close to each other, and a translation rod (13) is arranged on the L-shaped mounting plate (12), and a threaded rod (14) is arranged at the bottom end of the translation rod (13), and a threaded sleeve (15) is movably mounted on the outer wall of the threaded rod (14), and a clamping frame (16) is arranged on one side of the two translation rods (13) close to each other, and a fixed plate (17) is arranged between the two clamping frames (16), and grooves are arranged on the left and right sides of the fixed plate (17), and movable plates (18) are arranged in the grooves.

3. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 2, characterized in that: Two limiting columns (19) are arranged at the top end of the fixed plate (17), and insertion holes matching the diameter of the limiting columns (19) are arranged on the movable plate (18).

4. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 1 is characterized in that: The prying assembly (5) comprises two U-shaped frames (20), the side walls of the two U-shaped frames (20) are both provided with through holes, and a movable rod (21) is movably installed in the through holes, the outer walls of the two movable rods (21) are both fixedly installed with a collar (22), the side walls of the collar (22) are both movably fitted with a limit baffle (23), and the limit baffle (23) is both fixedly connected to the frame (3), one side wall of the two movable rods (21) is both fixedly connected with a mounting plate (24), a rotating shaft (25) is provided between the two mounting plates (24), a toggle plate (26) and a prying plate (27) are fixedly connected to the outer wall of the rotating shaft (25), and the prying plate (27) is provided with a plurality of hemispherical grooves, and balls (28) are provided in each of the hemispherical grooves.

5. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 1, characterized in that: The linkage assembly (6) comprises a rotating rod (29), a plurality of mounting blocks (30) are movably mounted on the outer wall of the rotating rod (29), and the mounting blocks (30) are fixedly connected to the front end side wall of the frame (3), a linkage plate (31) and an oblique mounting plate (32) are fixedly mounted on the outer wall of the rotating rod (29), a sliding groove is arranged at the top end of the oblique mounting plate (32), and an extension plate (33) is slidably mounted in the sliding groove, and the extension plate (33) is connected to the inner wall of the sliding groove on the oblique mounting plate (32) through a plurality of connecting springs (34).

6. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 4, characterized in that: A plurality of clamping columns are arranged on the left and right side walls of the installation plate (24), and a plurality of clamping grooves matching the clamping columns are arranged on the inner walls of the limit baffle plate (23) and the U-shaped frame (20).

7. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 1, characterized in that: Two hidden grooves are arranged at the top of the base (1), and the width of the hidden grooves is the same as the width of the prying plate (27).

8. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 2, characterized in that: Three through holes are provided at both upper and lower ends of the two lifting blocks (10), and the diameter of the through holes is the same as the diameter of the column (11). By inserting the column (11) into the through holes on the lifting blocks (10), the vertical lifting movement of the lifting blocks (10) is ensured.

9. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 5, characterized in that: A plurality of spiral springs are arranged on the outer wall of the rotating rod (29), and the two ends of the plurality of spiral springs are respectively connected to the rotating rod (29) and the set block (30).

10. The cargo box assembly heavy pressing tool capable of rapid mold change according to claim 1, characterized in that: Two limiting strips (35) are arranged at the top end of the square frame (3), and the two limiting strips (35) are fixedly connected to the top side wall of the square frame (3).

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