Bidirectional pressing machine with gear rack guide structure

Abstract

A two-way pressing machine with a gear rack guide structure comprises four sets of stand columns, an upper beam, a main cylinder, an upper workbench, an upper guide mechanism, a lower cylinder, a lower workbench and a lower guide mechanism, the top ends of the four sets of stand columns are fixedly connected with the upper beam, the bottom ends of the four sets of stand columns are fixedly connected with a pressing machine installation face, the main cylinder penetrates through the upper beam, and the telescopic end of the main cylinder is connected with the upper workbench. The lower working table is arranged on the lower portions of the stand columns in a sliding mode, an upper guide mechanism is arranged between the upper working table and the four stand columns and used for guiding the upper working table, a lower guide mechanism is arranged between the lower working table and the four stand columns and used for guiding the lower working table, and the lower cylinder is used for driving the lower working table. And the main cylinder and the lower cylinder are respectively controlled by a control system on the outer side of the press.

Description

Technical Field

[0001] The utility model relates to the technical field of press guiding, in particular to a two-way pressing press with a gear-rack guiding structure. Background Art

[0002] Generally, presses use slider-type guiding mechanisms to press products. For pressing automotive interior parts, the stroke is relatively long, which requires a certain height of the workshop. For the long-stroke pressing process, the guiding accuracy is not very high, which is not ideal. Therefore, it is necessary to design a guiding mechanism with high guiding accuracy. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems existing in the prior art, and to provide a two-way pressing press with a gear-rack guiding structure, which can achieve the purpose of high guiding accuracy.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A two-way pressing press with a gear-rack guiding structure, including four groups of columns, an upper beam, a main cylinder, an upper workbench, an upper guiding mechanism, a lower cylinder, a lower workbench and a lower guiding mechanism. The top ends of the four groups of columns are fixedly connected to the upper beam, and the bottom ends of the four groups of columns are fixedly connected to the hydraulic machine installation surface. The main cylinder penetrates through the upper beam, and the telescopic end of the main cylinder is connected to the upper workbench. The lower workbench is slidably arranged at the lower part of the columns. An upper guiding mechanism is arranged between the upper workbench and the four groups of columns, and the upper guiding mechanism is used for guiding the upper workbench. A lower guiding mechanism is arranged between the lower workbench and the four groups of columns, and the lower guiding mechanism is used for guiding the lower workbench. The lower cylinder is used to drive the lower workbench. The main cylinder and the lower cylinder are respectively controlled by a control system outside the press.

[0005] Further, the upper guiding mechanism includes a drive shaft group, a rack, a cylindrical gear, a first bevel gear and a vertical bearing seat. The drive shaft group includes a first drive shaft, a second drive shaft, a third drive shaft group and a fourth drive shaft group. Racks are symmetrically and fixedly arranged on the four groups of columns respectively. Cylindrical gears are meshed with the four racks respectively. A first drive shaft and a second drive shaft are respectively sleeved between the two cylindrical gears in the longitudinal direction of the press. The third drive shaft group and the fourth drive shaft group are connected in transmission between the first drive shaft and the second drive shaft.

[0006] Further, the third drive shaft group and the fourth drive shaft group are symmetrically arranged in the transverse direction of the press. The third drive shaft group includes a first third drive shaft and a second third drive shaft. The first third drive shaft and the second third drive shaft are coaxial, and the end connection is connected by a coupling.

[0007] The fourth drive shaft group includes a first fourth drive shaft and a second fourth drive shaft. The first fourth drive shaft and the second fourth drive shaft are coaxial, and the end connection is connected by a coupling.

[0008] Further, first bevel gears are sleeved at both ends of the first transmission shaft, and second bevel gears are sleeved at both ends of the second transmission shaft respectively;

[0009] Third bevel gears are sleeved at both ends of the third transmission shaft group respectively, and the third bevel gears are meshed with the first bevel gears and the second bevel gears respectively. Fourth bevel gears are fixedly sleeved at both ends of the fourth transmission shaft group respectively, and the fourth bevel gears are meshed with the first bevel gears and the second bevel gears respectively.

[0010] Further, vertical bearing seats are sleeved outside the first transmission shaft, the second transmission shaft, the third transmission shaft group and the fourth transmission shaft group respectively, and the vertical bearing seats are fixedly connected to the upper surface of the upper workbench.

[0011] Further, the lower guiding mechanism includes eight groups of lower racks, lower cylindrical gears and lower transmission shaft groups. The lower transmission shaft groups include a fifth transmission shaft, a sixth transmission shaft, a seventh transmission shaft group and an eighth transmission shaft group. The lower racks are respectively fixed on the column surfaces perpendicular to the transverse direction of the press. Lower cylindrical gears are meshed with the eight groups of lower racks respectively. The lower cylindrical gears are sleeved with the fifth transmission shaft and the sixth transmission shaft in the longitudinal direction, and are sleeved with the seventh transmission shaft group and the eighth transmission shaft group in the transverse direction respectively.

[0012] Further, the seventh transmission shaft group includes a seventh transmission shaft one and a seventh transmission shaft two. The seventh transmission shaft one and the seventh transmission shaft two are coaxial, and the end connection parts are connected through a lower coupling. The eighth transmission shaft group includes an eighth transmission shaft one and an eighth transmission shaft two. The eighth transmission shaft one and the eighth transmission shaft two are coaxial, and the end connection parts are connected through a lower coupling.

[0013] Further, lower cylinder connections are respectively arranged at the four corners of the lower workbench, and the lower cylinders are respectively installed on the four groups of columns through lower cylinder mounting frames.

[0014] Further, lower vertical bearing seats are sleeved outside the fifth transmission shaft, the sixth transmission shaft, the seventh transmission shaft group and the eighth transmission shaft group respectively, and the lower vertical bearing seats are fixedly connected to the side of the lower workbench.

[0015] Further, guiding assemblies are respectively fixed on the upper and lower parts of the opposite sides of the two columns in the longitudinal direction, including guiding plates, rollers and mounting frames. The guiding plates are respectively fixed on the columns. The rollers are slidably connected to the guiding plates, and the rollers are rotatably connected to the mounting frames. The mounting frames are fixedly connected to the lower plane of the upper workbench and the upper plane of the lower workbench.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows:

[0017] The utility model provides a two-way pressing press with a gear-rack guiding structure, which adopts the mutual cooperation of a rack, a cylindrical gear and a bevel gear, and has the beneficial effects of simpler structure and higher transmission precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0019] Figure 2 is a schematic front view structure diagram of the present utility model;

[0020] Figure 3 is Figure 2 a schematic enlarged view of part A in

[0021] Figure 4 is a schematic top view structure diagram of the present utility model excluding the upper beam;

[0022] Figure 5 is Figure 4 a schematic enlarged view of part B in

[0023] Figure 6 is a schematic top view structure diagram of the lower workbench and the column of the present utility model.

[0024] In the figure: 1, column; 2, upper beam; 3, main cylinder; 4, upper workbench; 5, upper guiding mechanism; 6, lower cylinder; 7, lower workbench; 8, lower guiding mechanism; 9, guiding assembly; 500, rack; 501, first transmission shaft; 502, second transmission shaft; 503, third transmission shaft group; 504, fourth transmission shaft group; 505, cylindrical gear; 506, first bevel gear; 507, second bevel gear; 508, vertical bearing block; 509, coupling; 510, third bevel gear; 511, fourth bevel gear; 801, lower rack; 802, lower cylindrical gear; 803, lower coupling; 805, fifth transmission shaft; 806, sixth transmission shaft; 807, seventh transmission shaft group; 808, eighth transmission shaft group; 809, lower vertical bearing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Example 1, please refer to Figure 1 - Figure 2In the embodiment, a bidirectional pressing press with a gear rack guide structure includes four groups of columns 1, an upper beam 2, a main cylinder 3, an upper working platform 4, an upper guide mechanism 5, a lower cylinder 6, a lower working platform 7 and a lower guide mechanism 8. The top ends of the four groups of columns 1 are fixedly connected to the upper beam 2, and the bottom ends of the four groups of columns 1 are fixedly connected to the ground, or a platform fixedly connected to the ground is provided around the lower working platform 7. The bottom ends of the four groups of columns 1 are fixed to the platform surface, and the lower working platform 7 is flush with the platform plane. The main cylinder 3 passes through the upper beam 2, and the telescopic end of the main cylinder 3 is connected to the upper workbench 4, an upper guide mechanism 5 is provided between the upper workbench 4 and the four groups of columns 1, and the upper guide mechanism 5 is used to guide the upper workbench 4, and the lower workbench 7 is slidably provided at the lower part of the column 1, and a lower guide mechanism 8 is provided between the lower workbench 7 and the four groups of columns 1, and the lower guide mechanism 8 is used to guide the lower workbench 7, and the lower cylinder 6 is used to drive the lower workbench 7, and the main cylinder 3 and the lower cylinder 6 are respectively controlled by the control system outside the press.

[0027] In this embodiment, there are four main cylinders 3 and four lower cylinders 6. By controlling the main cylinders 3 and the lower cylinders 6 to drive the upper worktable 4 and the lower worktable 7 respectively, and cooperating with the upper guide mechanism 5 of the upper worktable 4 of the press and the lower guide mechanism 8 of the lower worktable 7, the upper worktable 4 and the lower worktable 7 are moved toward each other, realizing two-way stroke pressing and improving pressing accuracy. This can reduce the mold closing time, thereby improving productivity and ensuring product qualification rate.

[0028] Example 2, based on the above example, please refer to Figure 3 and Figure 4 In the figure, the upper guide mechanism 5 includes a transmission shaft group, a rack 500, a cylindrical gear 505, a first bevel gear 506 and a vertical bearing seat 508. The transmission shaft group includes a first transmission shaft 501, a second transmission shaft 502, a third transmission shaft group 503 and a fourth transmission shaft group 504. The four groups of columns 1 are symmetrically fixed with racks 500, and the four groups of racks 500 are respectively engaged with the cylindrical gears 505. The first transmission shaft 501 and the second transmission shaft 502 are respectively sleeved between the two groups of cylindrical gears 505 in the longitudinal direction of the press. The first transmission shaft 501 and the second transmission shaft 502 are transmission-connected to the third transmission shaft group 503 and the fourth transmission shaft group 504.

[0029] In Example 3, the third transmission shaft group 503 and the fourth transmission shaft group 504 are symmetrically arranged in the transverse direction of the press, and the third transmission shaft group 503 includes a third transmission shaft 1 and a third transmission shaft 2. The third transmission shaft 1 and the third transmission shaft 2 are coaxial, and the end connections are connected by a coupling 509.

[0030] The fourth drive shaft group 504 includes a first fourth drive shaft and a second fourth drive shaft. The first fourth drive shaft and the second fourth drive shaft are coaxial, and the end connection is connected by a coupling 509.

[0031] In the transverse direction of the press, due to its long length, the first third drive shaft and the second third drive shaft are connected together by a coupling 509. Similarly, the first fourth drive shaft and the second fourth drive shaft are connected together by a coupling 509, meeting the length requirement of the press in the transverse direction.

[0032] Embodiment 4, the first drive shaft 501, the second drive shaft 502, the third drive shaft group 503, and the fourth drive shaft group 504 are respectively sleeved with vertical bearing seats 508, and the vertical bearing seats 508 are fixedly connected to the upper surface of the upper workbench 4 of the press.

[0033] When the main cylinder 3 drives the upper workbench 4 to move downward, it drives the first drive shaft 501, the second drive shaft 502, the third drive shaft group 503, and the fourth drive shaft group 504 to move downward together. In order to improve the accuracy of the upper workbench 4, first bevel gears 506 are respectively sleeved at both ends of the first drive shaft 501, and second bevel gears 507 are respectively sleeved at both ends of the second drive shaft 502.

[0034] Third bevel gears 510 are respectively sleeved at both ends of the third drive shaft group 503. The third bevel gears 510 are respectively meshed with the first bevel gear 506 at the upper end of the first drive shaft 501 and the second bevel gear 507 at the upper end of the second drive shaft 502. Fourth bevel gears 511 are respectively fixedly sleeved at both ends of the fourth drive shaft group 504. The fourth bevel gears 511 are respectively meshed with the first bevel gear 506 at the lower end of the first drive shaft 501 and the second bevel gear 507 at the lower end of the second drive shaft 502.

[0035] In this way, through the meshing of the third bevel gear 510, the first bevel gear 506, and the second bevel gear 507, the fourth bevel gears 511 are respectively meshed with the first bevel gear 506 at the lower end of the first drive shaft 501 and the second bevel gear 507 at the lower end of the second drive shaft 502. The cylindrical gears 505 at both ends of the first drive shaft 501 and the cylindrical gears 505 at both ends of the second drive shaft 502 are also meshed with the rack 500 on the column 1. The application of the rack and pinion transmission structure improves the load-bearing capacity of the press, can maintain stable transmission performance, and usually has a relatively high transmission efficiency, and can effectively transmit the input power to the output end to achieve efficient power transmission.

[0036] In order to ensure that the upper workbench 4 stops at the position specified by the system, limit columns are provided on both sides of the upper workbench 4.

[0037] Embodiment 5. To make the accuracy of the lower workbench 7 higher, the lower guiding mechanism 8 includes eight groups of lower racks 801, lower cylindrical gears 802, and a lower transmission shaft group. The lower racks 801 are respectively fixed on the column surfaces perpendicular to the transverse direction of the press. There are lower cylindrical gears 802 meshed with the eight groups of lower racks 801 respectively. The lower transmission shaft group includes a fifth transmission shaft 805, a sixth transmission shaft 806, a seventh transmission shaft group 807, and an eighth transmission shaft group 808. The lower cylindrical gears 802 are sleeved with the fifth transmission shaft 805 and the sixth transmission shaft 806 in the longitudinal direction, and are respectively sleeved with the seventh transmission shaft group 807 and the eighth transmission shaft group 808 in the transverse direction.

[0038] To make the lower transmission shaft group move together with the lower workbench 7, lower vertical bearing seats 809 are respectively sleeved on the fifth transmission shaft 805, the sixth transmission shaft 806, the seventh transmission shaft group 807, and the eighth transmission shaft group 808. The lower vertical bearing seats 809 are fixedly connected to the sides of the lower workbench 7.

[0039] Embodiment 6. Similarly, to meet the length of the press in the transverse direction, the seventh transmission shaft group 807 includes a first seventh transmission shaft and a second seventh transmission shaft. The first seventh transmission shaft and the second seventh transmission shaft are coaxial, and the end connection is connected by a lower coupling 803.

[0040] The eighth transmission shaft group 808 includes a first eighth transmission shaft and a second eighth transmission shaft. The first eighth transmission shaft and the second eighth transmission shaft are coaxial, and the end connection is connected by a lower coupling 803.

[0041] Embodiment 7, as Figure 1 shown, to further improve the guiding accuracy and smoother sliding of the upper workbench 4 and the lower workbench 7, guiding assemblies 9 are respectively fixed on the upper and lower parts of the opposite sides of the two columns in the longitudinal direction of the press, including guide plates, rollers, and mounting brackets. The guide plates are respectively fixed on the columns. The rollers are slidably connected to the guide plates. The rollers are rotatably connected to the mounting brackets. The mounting brackets are fixedly connected to the lower end face of the upper workbench 4 and the upper end face of the upper workbench. When the upper workbench 4 moves downward, the rollers on the upper part of the column will roll downward on the guide plate. When the lower workbench 7 moves upward, the rollers connected to the lower workbench 7 will also move upward on the lower guide plate.

[0042] To be able to drive the lower workbench 7 to move upward, lower cylinders 6 are respectively arranged at the four corners of the lower workbench 7 to connect the lower workbench 7. The lower cylinders 6 are respectively installed on the four groups of columns 1 through lower cylinder mounting brackets.

[0043] To ensure the safe use of the press, an automatic brake system is set at the top of the upper beam 2 of the press, and a safety bolt to prevent the upper workbench 4 from falling is fixedly arranged on the lower plane of the upper beam 2.

[0044] In this embodiment, the working height of the upper workbench 4 is 1250 mm, and the rising height of the lower workbench 7 is 500 mm.

[0045] The control system of this press can be written by those skilled in the relevant art.

[0046] Working principle: Molds are installed on the upper workbench 4 and the lower workbench 7 respectively. The main cylinder 3 and the lower cylinder 6 are controlled by the control system to move towards each other to press the product. Through the mutual cooperation and transmission of the rack 500, cylindrical gear 505, and transmission shaft group of the upper guiding mechanism 5, and the lower rack 801, lower cylindrical gear 802, and lower transmission shaft group of the lower guiding mechanism 8, double-sided pressing is carried out to close the mold, meeting the requirements of fast pressing speed, increased efficiency, and improved precision. After pressing is completed, the product can be taken out of the mold.

[0047] In summary, the above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present utility model.

Claims

1. A two-way pressing press with a rack and pinion guiding structure, characterized in that, It includes four groups of columns (1), an upper beam (2), a main cylinder (3), an upper workbench (4), an upper guiding mechanism (5), a lower cylinder (6), a lower workbench (7) and a lower guiding mechanism (8). The tops of the four groups of columns (1) are fixedly connected to the upper beam (2), and the bottoms of the four groups of columns (1) are fixedly connected to the ground. The main cylinder (3) penetrates through the upper beam (2), and the telescopic end of the main cylinder (3) is connected to the upper workbench (4). An upper guiding mechanism (5) is arranged between the upper workbench (4) and the four groups of columns (1), and the upper guiding mechanism (5) is used for guiding the upper workbench (4). The lower workbench (7) is slidably arranged at the lower part of the columns (1), and a lower guiding mechanism (8) is arranged between the lower workbench (7) and the four groups of columns (1), and the lower guiding mechanism (8) is used for guiding the lower workbench (7). The lower cylinder (6) is used to drive the lower workbench (7). Guide assemblies (9) are respectively fixed on the upper and lower parts of the opposite sides of the two columns (1) in the longitudinal direction. The main cylinder (3) and the lower cylinder (6) are respectively controlled by a control system outside the press.

2. The two-way pressing press with a gear-rack guiding structure according to claim 1, wherein: The upper guiding mechanism (5) includes a transmission shaft group, a rack (500), a cylindrical gear (505), a first bevel gear (506) and a vertical bearing seat (508). The transmission shaft group includes a first transmission shaft (501), a second transmission shaft (502), a third transmission shaft group (503) and a fourth transmission shaft group (504). Racks (500) are symmetrically and fixedly arranged on the four groups of columns (1) respectively, and cylindrical gears (505) are respectively meshed with the four groups of racks (500). A first transmission shaft (501) and a second transmission shaft (502) are respectively sleeved between the two cylindrical gears (505) of the press in the longitudinal direction, and the third transmission shaft group (503) and the fourth transmission shaft group (504) are connected in transmission between the first transmission shaft (501) and the second transmission shaft (502).

3. The two-way pressing press with a gear-rack guiding structure according to claim 2, wherein: The third transmission shaft group (503) and the fourth transmission shaft group (504) are symmetrically arranged in the transverse direction of the press. The third transmission shaft group includes a first third transmission shaft and a second third transmission shaft, and the first third transmission shaft and the second third transmission shaft are coaxial and are connected at the end connection by a coupling (509); The fourth transmission shaft group (504) includes a first fourth transmission shaft and a second fourth transmission shaft, and the first fourth transmission shaft and the second fourth transmission shaft are coaxial and are connected at the end connection by a coupling (509).

4. A two-way pressing press with a gear-rack guiding structure according to claim 2, characterized in that: First bevel gears (506) are respectively sleeved at both ends of the first transmission shaft (501), and second bevel gears (507) are respectively sleeved at both ends of the second transmission shaft (502); Both ends of the third drive shaft group (503) are sleeved with third bevel gears (510), and the third bevel gears (510) are respectively meshed with the first bevel gear (506) and the second bevel gear (507) at the upper part in the longitudinal direction of the press. Both ends of the fourth drive shaft group (504) are fixedly sleeved with fourth bevel gears (511), and the fourth bevel gears (511) are respectively meshed with the first bevel gear (506) and the second bevel gear (507) at the lower part in the longitudinal direction of the press.

5. A two-way pressing press with a gear-rack guiding structure according to claim 2, characterized in that: The first drive shaft (501), the second drive shaft (502), the third drive shaft group (503) and the fourth drive shaft group (504) are respectively sleeved with vertical bearing seats (508), and the vertical bearing seats (508) are fixedly connected to the upper surface of the upper workbench (4).

6. A two-way pressing press with a gear-rack guiding structure according to claim 1, characterized in that: The lower guiding mechanism (8) includes eight groups of lower racks (801), lower cylindrical gears (802), and a lower drive shaft group. The lower drive shaft group includes a fifth drive shaft (805), a sixth drive shaft (806), a seventh drive shaft group (807) and an eighth drive shaft group (808). The eight groups of lower racks (801) are respectively fixed on the column surfaces perpendicular to the transverse direction of the press. The eight groups of lower racks (801) are respectively meshed with lower cylindrical gears (802). The lower cylindrical gears (802) are sleeved with the fifth drive shaft (805) and the sixth drive shaft (806) in the longitudinal direction, and are respectively sleeved with the seventh drive shaft group (807) and the eighth drive shaft group (808) in the transverse direction.

7. The two-way pressing press with a gear-rack guiding structure according to claim 6, characterized in that: The seventh drive shaft group (807) includes a first seventh drive shaft and a second seventh drive shaft. The first seventh drive shaft and the second seventh drive shaft are coaxial, and are connected by a lower coupling (803) at the end connection. The eighth drive shaft group (808) includes a first eighth drive shaft and a second eighth drive shaft. The first eighth drive shaft and the second eighth drive shaft are coaxial, and are connected by a lower coupling (803) at the end connection.

8. The two-way pressing press with a gear-rack guiding structure according to claim 1, characterized in that: The four corners of the lower workbench (7) are respectively connected to the lower cylinders (6), and the lower cylinders (6) are respectively installed on the four groups of columns (1) through lower cylinder mounting frames.

9. The two-way pressing press with a gear-rack guiding structure according to claim 6, characterized in that: The fifth drive shaft (805), the sixth drive shaft (806), the seventh drive shaft group (807) and the eighth drive shaft group (808) are respectively sleeved with lower vertical bearing seats (809), and the lower vertical bearing seats (809) are fixedly connected to the side of the lower workbench (7).

10. A two-way pressing press with a gear-rack guiding structure according to claim 1, characterized in that: The guiding assembly (9) includes a guiding plate, rollers and a mounting frame. The guiding plates are respectively fixed on the columns (1). The rollers are slidably connected to the guiding plates, and the rollers are rotatably connected to the mounting frame. The mounting frame is fixedly connected to the lower plane of the upper workbench and the upper plane of the lower workbench.

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