Lightweight press machine

Abstract

The utility model relates to the technical field of pressure equipment, in particular to a light-weight press machine which comprises a frame, a pressure applying mechanism and a pressure bearing mechanism, the frame is provided with a sliding way in the first direction, and a pin shaft is arranged on the frame; the pressure applying mechanism comprises a fixed end connected with the frame and a sliding end capable of sliding along the sliding way. The pressure bearing mechanism is arranged on a pin shaft of the frame, the pressure bearing mechanism and the pressure applying mechanism are oppositely arranged in the first direction, the pressure bearing mechanism comprises a supporting frame and tension bearing wheels rotationally arranged at the two ends of the supporting frame, and the two tension bearing wheels abut against the two ends, in the second direction, of the frame correspondingly; wherein the first direction is perpendicular to the second direction, the light-weight press machine can effectively relieve the situation of deformation caused by local stress, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pressure equipment technology, and in particular to a lightweight press. Background Technology

[0002] Presses are used for assembling workpieces or conducting pressure tests, such as assembling bearings. There are many types of presses, including hydraulic presses and lightweight presses. Hydraulic presses can provide higher pressure and are highly automated, but they are also more expensive. Lightweight presses, compared to hydraulic presses, can also be used for assembling some workpieces, and their cost is reduced by more than ten times, making them more suitable for assembling simple workpieces.

[0003] Currently, lightweight presses on the market generally consist of a frame, a pressure applying mechanism, and a support platform. The frame has slide rails on which the pressure applying mechanism slides, and the support platform is positioned opposite to the pressure applying mechanism. During workpiece assembly, the workpiece is placed on the support platform, and then pressure is applied by the pressure applying mechanism. This causes the sliding end of the pressure applying mechanism to move towards the workpiece, applying pressure to the workpiece on the support platform, thus completing the assembly and disassembly of the workpiece. However, current support platforms rely on pins on the frame for adjustment and support. The pressure applied by the pressure applying mechanism is transmitted to the support platform through the workpiece, which can easily cause the support platform to deform due to localized stress, affecting its service life. Utility Model Content

[0004] This invention provides a lightweight press that can effectively reduce deformation caused by localized stress and extend its service life.

[0005] This application provides a lightweight press, comprising: a frame, a slide rail provided along a first direction, and a pin on the frame; a pressure applying mechanism, including a fixed end connected to the frame and a sliding end that can slide along the slide rail; and a pressure bearing mechanism, disposed on the pin on the frame. The pressure bearing mechanism and the pressure applying mechanism are disposed opposite to each other along the first direction. The pressure bearing mechanism includes a support frame and pull rollers rotatably disposed at both ends of the support frame. The two pull rollers abut against the two ends of the frame along a second direction, respectively. The first direction is perpendicular to the second direction.

[0006] In one possible implementation, the frame includes two first side frames extending along a first direction, the two first side frames forming a slide; two support frames are provided, the two support frames are respectively located on both sides of the first side frames, and a pull-up wheel is rotatably disposed between the two support frames, the two pull-up wheels abutting against the outer surfaces of the two first side frames respectively.

[0007] In one possible implementation, the pressure-bearing mechanism further includes a pressure-bearing bracket movably disposed between the two support frames. The pressure-bearing bracket has pressure-bearing wheels rotatably disposed at both ends along the second direction, and the two pressure-bearing wheels abut against the inner surfaces of the two first frame frames respectively.

[0008] In one possible implementation, the two pressure rollers and the two tension rollers are located on the same straight line.

[0009] In one possible implementation, the support frame is provided with a strip-shaped hole extending in a second direction, and the pressure-bearing bracket is provided with a connecting column, which is movably disposed in the strip-shaped hole.

[0010] In one possible implementation, the support frame has a support surface for supporting the workpiece, and there is a height difference between the pressure-bearing bracket and the support surface to leave a gap between the pressure-bearing bracket and the workpiece.

[0011] In one possible implementation, multiple sets of first reinforcing ribs are provided within the support frame along the length of the support frame, and the multiple sets of first reinforcing ribs are provided along a first direction.

[0012] In one possible implementation, multiple sets of second reinforcing ribs are arranged along the length of the support frame, with the second reinforcing ribs being perpendicular to the first reinforcing ribs.

[0013] In one possible implementation, the frame is provided with multiple sets of adjustment holes along the first direction, and a pin is inserted into the adjustment hole to support the pressure-bearing mechanism.

[0014] In one possible implementation, the pressure applying mechanism includes: a sliding table that slides in conjunction with a slide rail; a jack disposed on the sliding table, the jack having a telescopic part that can extend and retract along a first direction, the telescopic part being connected to a frame; a pressure applying member disposed on the side of the sliding table away from the jack; and an elastic member whose two ends along the first direction are respectively connected to the frame and the sliding table.

[0015] The lightweight press provided by this utility model extends along a first direction through a pressure-applying mechanism and applies pressure to the workpiece on the support frame through a sliding end to complete the assembly or disassembly of the workpiece or pressure testing. The pressure is applied to the support frame through the workpiece. When the support frame tends to deform, the bearing rollers at both ends of the support frame abut against the frame. The force applied to the support frame is shared by the cooperation between the frame and the bearing rollers, which can effectively reduce the deformation caused by local stress and extend the service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the planar structure of a lightweight press provided by this utility model.

[0018] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the lightweight press along the AA direction.

[0019] Figure 3 This is a side view structural diagram of a lightweight press provided by this utility model.

[0020] Figure 4 yes Figure 3 The diagram shows a partially enlarged structural schematic of point B of the lightweight press.

[0021] Figure 5 This is a three-dimensional structural diagram of a lightweight press provided by this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of a pressure-bearing mechanism provided by this utility model.

[0023] Figure label:

[0024] X, first direction; Y, second direction;

[0025] 1. Frame; 11. Pin; 12. First frame; 13. Adjustment hole;

[0026] 2. Pressure applying mechanism; 21. Sliding table; 22. Jack; 23. Pressure applying component; 24. Elastic component;

[0027] 3. Pressure-bearing mechanism; 31. Support frame; 311. Strip hole; 312. Support surface; 313. First reinforcing rib; 314. Second reinforcing rib; 32. Tensioning wheel; 33. Pressure-bearing bracket; 331. Connecting column; 34. Pressure-bearing wheel. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] The following is combined with Figures 1-6 A lightweight press provided by an embodiment of the present invention includes: a frame 1, a pressure applying mechanism 2, and a pressure bearing mechanism 3, wherein:

[0030] The frame 1 is provided with a slide along the first direction X, and the frame 1 is provided with a pin 11.

[0031] The pressure-applying mechanism 2 includes a fixed end connected to the frame 1 and a sliding end that can slide along the slide rail.

[0032] The pressure-bearing mechanism 3 is mounted on the pin 11 of the frame 1. The pressure-bearing mechanism 3 and the pressure-applying mechanism 2 are arranged opposite each other along the first direction X. The pressure-bearing mechanism 3 includes a support frame 31 and a tension wheel 32 rotatably mounted at both ends of the support frame 31. The two tension wheels 32 respectively abut against the two ends of the frame 1 along the second direction Y.

[0033] Wherein, the first direction X is perpendicular to the second direction Y.

[0034] In this invention, the pressure applying mechanism 2 extends along the first direction X and applies pressure to the workpiece on the support frame 31 through the sliding end to complete the disassembly or pressure detection of the workpiece. The pressure is applied to the support frame 31 through the workpiece. When the support frame 31 tends to deform, the bearing rollers 32 at both ends of the support frame 31 abut against the frame 1. The force applied to the support frame 31 is shared by the frame 1 and the bearing rollers 32, which can effectively reduce the deformation caused by local stress and extend the service life.

[0035] Specifically, the first direction X is vertical, and the second direction Y is horizontal. After the workpiece is positioned on the support frame 31, the sliding end is moved downward by the pressure applying mechanism 2, thereby assembling, disassembling, or pressure testing the workpiece on the support frame 31. Optionally, the first direction X and the second direction Y can also be two mutually perpendicular directions in the horizontal plane. By positioning the workpiece on the side of the support frame 31, and then moving the sliding end toward the workpiece by the pressure applying mechanism 2, the assembly, disassembly, or pressure testing of the workpiece can be completed.

[0036] In one specific embodiment, when assembling or disassembling bearings, each bearing needs to be processed individually. If a hydraulic press is used, it would be equivalent to equipping each workstation with a hydraulic press, resulting in high costs and large space requirements. Furthermore, because the bearings are assembled one by one, the work efficiency is not high. However, if the lightweight press of this invention is used, each workstation only needs to be equipped with a lightweight press, resulting in lower costs. Moreover, compared to a hydraulic press, the space required is significantly reduced, allowing for the purchase of more lightweight presses to operate simultaneously, thereby improving work efficiency.

[0037] In the current lightweight press, the pressure-bearing mechanism 3 is a support platform. The support platform is supported only by the pin 11 on the frame 1. When the pressure-applying mechanism 2 transmits pressure to the support platform through the workpiece, it generates downward pressure on the support platform. This can easily cause the support platform to dent and deform at the pressure-applying part. As a result, the deformed support platform is difficult to adjust up and down on the frame 1, which affects subsequent normal use and service life.

[0038] In the embodiment provided by this utility model, by setting bearing wheels 32 at both ends of the support frame 31, the two bearing wheels 32 abut against the left and right ends of the frame 1 respectively. When the support frame 31 tends to deform, the frame 1 supports the two ends of the support frame 31 through the bearing wheels 32 to resist the force of deformation of the support frame 31, thereby effectively improving the compressive strength of the support frame 31, effectively reducing the deformation caused by local stress, and extending the service life.

[0039] In one specific embodiment, two support rollers 32 are provided, and the two support rollers 32 abut against the left and right ends of the frame 1 respectively. Optionally, multiple support rollers 32 can also be provided, that is, two or more support rollers 32 are provided at the left and right ends of the frame 1 to bear the tension of the support frame 31. Moreover, the use of support rollers 32 can also facilitate the vertical sliding adjustment of the support frame 31, avoiding the situation where the support frame 31 is obstructed vertically.

[0040] Optionally, the support roller 32 can also be configured as a support plate, with two support plates abutting against the left and right ends of the frame 1 respectively, to support the force exerted on the support frame 31.

[0041] In this embodiment, the special design of the frame 1, the pressure applying mechanism 2, and the pressure bearing mechanism 3 ensures balanced force distribution. Specifically, the pressure bearing mechanism 3 employs a design where a rotatable bearing roller 32 abuts against both ends of the frame 1, transforming the pressure transmission path from single-point support to multi-point support. In practical applications, such as when press-fitting bearings, the pressure on the workpiece is transmitted to the bearing roller 32 through the pressure bearing mechanism 3, and then dispersed by the bearing roller 32 to both ends of the frame 1, avoiding the deformation problem caused by excessive localized force in traditional presses. This structure is particularly suitable for press-fitting large bearings or applications requiring precise pressure control, as the rotatable design of the bearing roller 32 not only reduces friction but also improves press-fitting accuracy. The perpendicular alignment of the first direction X and the second direction Y ensures the stability of the force distribution, effectively preventing workpiece displacement, especially during high-tonnage press-fitting. Furthermore, this design allows for flexible adjustment under different pressure requirements, enabling the selection of bearing rollers 32 of different materials and sizes to meet various pressure needs, demonstrating strong adaptability. In actual production, this design also facilitates maintenance and parts replacement, significantly extending the service life of the equipment. The overarching concept "pressure-bearing mechanism 3" can be derived into various specific implementation forms, such as using bearings of different materials as the tension wheel 32, or using special coating treatment to improve wear resistance. These variant solutions can provide optimized effects for specific application scenarios while maintaining basic functions.

[0042] In some embodiments, the frame 1 includes two first side frames 12 extending along a first direction X, the two first side frames 12 forming a slide; two support frames 31 are provided, the two support frames 31 are respectively located on both sides of the first side frame 12, and the pull rollers 32 are rotatably disposed between the two support frames 31, the two pull rollers 32 respectively abut against the outer surfaces of the two first side frames 12.

[0043] In this invention, the design of forming a slide rail with two first frame frames 12 and setting a support frame 31 on each side further optimizes the stress structure. The two support frames 31 are located on both sides of the first frame frame 12, and the tension wheel 32 abuts against the outer surface of the first frame frame 12, forming a more stable support system. This symmetrical arrangement exhibits significant advantages in practical applications: First, when press-fitting large bearings, the symmetrical arrangement can effectively prevent eccentric force and ensure the accuracy of the press-fitting process; second, the design of the two support frames 31 increases the stability of the overall structure, maintaining good working condition even under high pressure; third, this arrangement facilitates inspection and maintenance, allowing operators easy access to all components. In specific implementations, different frame materials can be selected according to actual needs. For example, high-strength steel can be used for large-tonnage press-fitting, while aluminum alloy is suitable for lightweight applications. The support frames 31 can adopt an integral or modular structure. Although the modular structure has a higher manufacturing cost, it is easier to replace and maintain. In addition, the contact surface between the bearing wheel 32 and the first frame 12 can be specially treated, such as hardening treatment or coating treatment, to improve wear resistance and service life.

[0044] Specifically, the two support frames 31 are located on the front and rear sides of the first frame 12 respectively, and the two pull rollers 32 abut against the left and right ends of the two first frame 12 respectively. This can not only share the force on the support frame 31 during operation, but also facilitate the up and down adjustment of the support frame 31.

[0045] like Figure 6 As shown, in some embodiments, the pressure-bearing mechanism 3 further includes a pressure-bearing bracket 33 movably disposed between two support frames 31. The pressure-bearing bracket 33 is rotatably provided with pressure-bearing wheels 34 at both ends along the second direction Y. The two pressure-bearing wheels 34 respectively abut against the inner surfaces of the two first frame frames 12.

[0046] In this invention, a more complete force-bearing system is formed by adding a movable pressure-bearing bracket 33 and a pressure-bearing wheel 34. The pressure-bearing wheel 34 abuts against the inner surface of the first frame 12, forming an inner and outer corresponding support structure with the tension wheel 32. The inner and outer bidirectional support structure makes the force more balanced and significantly improves the pressing accuracy. When pressing precision parts, this design can effectively prevent workpiece deformation and ensure pressing quality. The movable design of the pressure-bearing bracket 33 also allows for fine-tuning during the pressing process, which is especially important for pressing work requiring high precision.

[0047] Optionally, the pressure roller 34 can be made of materials with different hardness to meet the needs of different workpieces; the pressure support 33 can be designed to be detachable to facilitate the replacement of pressure rollers 34 of different specifications; the moving mechanism of the support can be sliding or hinged, each with its own applicable occasions.

[0048] Specifically, the two pressure rollers 34 abut against the inner surfaces of the two first frame frames 12 respectively, and the two tension rollers 32 abut against the outer surfaces of the two first frame frames 12 respectively. The tension rollers 32 distribute part of the force on the support frame 31 to the first frame frames 12, while the pressure rollers 34 support the first frame frames 12 on the inside to prevent the first frame frames 12 from denting or deforming at the position of the tension rollers 32, thereby further improving the overall strength and extending the service life.

[0049] In some embodiments, the two pressure rollers 34 and the two tension rollers 32 are located on the same straight line.

[0050] In this invention, the pressure transmission path is optimized by placing the pressure-bearing wheel 34 and the tension wheel 32 on the same straight line. This collinear design ensures direct force transmission, reduces force dispersion and loss, and has significant technical advantages: First, pressure transmission is more direct, reducing energy loss; second, the force path is clear, facilitating pressure calculation and control; third, the structure is simple and reliable, reducing the failure rate. In practical applications, such as pressure testing, this structure can provide more accurate pressure data. Specific implementation considerations include: optimizing the wheel material selection based on the pressure magnitude; using bearing seats or direct bearing mounting for the wheels; and selecting different surface treatment options based on the operating environment. This design is particularly suitable for applications requiring precise pressure control, such as the assembly of precision instruments.

[0051] like Figure 6 As shown, in some embodiments, the support frame 31 is provided with a strip hole 311 extending along the second direction Y, and the pressure-bearing bracket 33 is provided with a connecting column 331, which is movably disposed in the strip hole 311.

[0052] In this invention, the design of the strip-shaped hole 311 and the connecting post 331 provides adjustable performance for the pressure-bearing bracket 33. This design has multiple technical advantages: First, through the guiding effect of the strip-shaped hole 311, the pressure-bearing bracket 33 can move within a certain range while maintaining stable support; second, the adjustment process is simple and intuitive, requiring no professional tools; third, it ensures stability and accuracy during adjustment. In practical applications, this design can adapt to the pressing requirements of workpieces of different sizes, and is particularly useful when different specifications of workpieces need to be frequently changed on automotive parts assembly lines. Optional implementation schemes include: the strip-shaped hole 311 can be straight or curved, with the curved design providing more flexible adjustment angles; the connecting post 331 can use a threaded connection or a quick-locking mechanism for easy adjustment and fixation; wear-resistant bushings can be added to the edge of the strip-shaped hole 311 to extend its service life. The design of the adjustment mechanism can also consider adding scale markings for accurate positioning and repeated adjustment.

[0053] Specifically, the pressure-bearing bracket 33 is connected to the strip hole 311 through the connecting column 331, so that the pressure-bearing bracket 33 can be adjusted up and down with the support frame 31. However, the pressure-bearing bracket 33 will not be dented or deformed along with the support frame 31. That is, when the support frame 31 tends to dent or deform, the force is applied to the first frame 12 through the bearing wheel 32, while the pressure-bearing bracket 33 supports the inner side of the first frame 12 through the bearing wheel 34 to prevent the first frame 12 from denting or deforming.

[0054] like Figure 6 As shown, in some embodiments, the support frame 31 has a support surface 312 for supporting the workpiece, and there is a height difference between the pressure-bearing bracket 33 and the support surface 312 so that there is a gap between the pressure-bearing bracket 33 and the workpiece.

[0055] In this invention, the height difference between the support surface 312 and the pressure-bearing bracket 33 creates a gap between the workpiece and the pressure-bearing bracket 33. This design has significant practical implications: First, it avoids direct contact between the pressure-bearing bracket 33 and the workpiece, preventing unnecessary wear and interference; second, it provides sufficient installation space for workpieces with protruding structures; and third, it facilitates observation of the pressing process and timely detection of abnormalities. In practical applications, such as when pressing parts with bosses or special structures, this design ensures a smooth pressing process.

[0056] Specifically, there is a gap between the pressure-bearing bracket 33 and the workpiece, so that the force of the workpiece can only be applied to the support surface 312 of the support frame 31, causing the support frame 31 to tend to deform in a concave shape, while the pressure-bearing bracket 33 is not affected by the workpiece, thereby ensuring that the pressure-bearing bracket 33 and the pressure-bearing wheel 34 can effectively support the inner side of the first frame 12.

[0057] Optionally, the height difference can be achieved by adjustable pads to increase flexibility; the support surface 312 can be made of materials with different hardness to adapt to different workpiece requirements; a positioning structure can be added to the support surface 312 to improve press-fit accuracy.

[0058] like Figure 4 As shown, in some embodiments, multiple sets of first reinforcing ribs 313 are provided inside the support frame 31 along the length direction of the support frame 31, and the multiple sets of first reinforcing ribs 313 are provided along the first direction X. Multiple sets of second reinforcing ribs 314 are provided inside the support frame 31 along the length direction of the support frame 31, and the second reinforcing ribs 314 are provided perpendicular to the first reinforcing ribs 313.

[0059] In this invention, the orthogonal design of multiple sets of first reinforcing ribs 313 and second reinforcing ribs 314 embodies the optimization concept of structural mechanics and has significant technical effects: First, the first reinforcing ribs 313 are arranged along the first direction X, providing the main load-bearing capacity; second, the second reinforcing ribs 314 are arranged perpendicular to the first reinforcing ribs 313, forming a grid structure to provide all-round support; third, this design significantly improves the torsional resistance of the support frame 31. In practical applications, such as during the press-fitting of large mechanical parts, this structure can effectively prevent deformation. Optional implementation schemes include: the ribs can adopt different cross-sectional shapes, such as I-shaped or T-shaped, to optimize the load-bearing effect; diagonal reinforcing ribs can be added according to stress analysis; and reinforcing ribs can be added at key nodes. This design is particularly suitable for industrial applications that require withstanding high pressure.

[0060] Moreover, compared to using solid support columns, this embodiment forms grid-like reinforcing ribs (i.e., first reinforcing rib 313 and second reinforcing rib 314) inside the hollow support frame 31, which reduces material usage and lightens the weight of the pressure-bearing mechanism 3 while ensuring the structural strength of the support frame 31.

[0061] In some embodiments, the frame 1 is provided with a plurality of adjustment holes 13 along the first direction X, and the pin 11 is inserted into the adjustment holes 13 to support the pressure bearing mechanism 3.

[0062] In this invention, the design of multiple sets of adjustment holes 13 reflects the adjustability and versatility of the equipment, and has the following technical effects: First, by changing the position of the pin 11, it can adapt to the pressing requirements of workpieces of different heights; second, the adjustment process is simple and quick, improving work efficiency; third, multiple adjustment positions provide more precise height selection. In practical applications, such as when the production line needs to frequently change workpieces of different specifications, this design can greatly improve adaptability.

[0063] Optionally, the adjustment holes 13 can be arranged in a stepped pattern to provide more adjustment options; a quick-locking device can be added to improve adjustment efficiency; and a reinforcing structure can be added around the adjustment holes 13 to improve load-bearing capacity.

[0064] In some embodiments, the pressure applying mechanism 2 includes: a sliding table 21 that slides in conjunction with a slide rail; a jack 22 disposed on the sliding table 21, the jack 22 having a telescopic portion that can extend and retract along a first direction X, the telescopic portion being connected to the frame 1; a pressure applying member 23 disposed on the side of the sliding table 21 away from the jack 22; and an elastic member 24, the two ends of the elastic member 24 being connected to the frame 1 and the sliding table 21 respectively along the first direction X.

[0065] In this invention, the detailed design of the pressure applying mechanism 2 reflects the system's integrity and reliability, offering multiple technical advantages: First, the cooperation between the sliding table 21 and the slide rail ensures the smoothness of the pressing process; second, the jack 22 provides controllable pressure output; and third, the elastic element 24 buffers pressure impacts. In practical applications, such as the pressing of precision parts, this combined design ensures precise pressure control while providing necessary protection. Optional implementation schemes include: the elastic element 24 can be made of springs or pneumatic buffer devices of different specifications; a dustproof sealing device can be added to the sliding table 21; and the jack 22 can be either manual or electric to meet different operational needs.

[0066] The lightweight press extends along the first direction X via the pressure applying mechanism 2 and applies pressure to the workpiece on the support frame 31 through the sliding end to complete the disassembly and assembly of the workpiece or pressure testing. The pressure is applied to the support frame 31 through the workpiece. When the support frame 31 tends to deform, the bearing rollers 32 at both ends of the support frame 31 abut against the frame 1. The force applied to the support frame 31 is shared by the frame 1 and the bearing rollers 32, which can effectively reduce the deformation caused by local stress and extend the service life.

[0067] When using this lightweight press, the workpiece is placed on the support surface 312 of the support frame 31 for positioning. Then, the jack 22 is manually operated to move the sliding table 21 downward. Pressure is applied to the workpiece through the pressure-applying component 23 at the bottom of the sliding table 21 to complete the assembly, disassembly, or pressure testing of the workpiece. After the operation is completed, the pressure of the jack 22 is released, and the sliding table 21 is reset upward under the action of the elastic component 24, ready for the next operation.

[0068] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lightweight press machine characterized by, The application relates to a frame (1) provided with a slide in a first direction, and a pin shaft (11) arranged on the frame (1); a pressing mechanism (2) comprising a fixed end connected with the frame (1) and a sliding end capable of sliding along the slide; a pressure-bearing mechanism (3) arranged on the pin shaft (11) of the frame (1), and oppositely arranged with the pressing mechanism (2) in the first direction, and comprising a support frame (31) and tension pulleys (32) rotatably arranged at two ends of the support frame (31), and the two tension pulleys (32) are respectively abutted with two ends of the frame (1) in a second direction. The first direction is perpendicular to the second direction. The frame (1) comprises two first side frames (12) extending in the first direction, and the two first side frames (12) form the slide; the support frame (31) is arranged on two sides of the first side frame (12), and the tension pulley (32) is rotatably arranged between the two support frames (31), and the two tension pulleys (32) are respectively abutted with the outer side surfaces of the two first side frames (12). The pressure-bearing mechanism (3) further comprises a pressure-bearing support (33) movably arranged between the two support frames (31), and pressure-bearing wheels (34) are rotatably arranged at two ends of the pressure-bearing support (33) in the second direction, and the two pressure-bearing wheels (34) are respectively abutted with the inner side surfaces of the two first side frames (12). The two pressure-bearing wheels (34) and the two tension pulleys (32) are located on the same straight line.

2. The lightweight press of claim 1, wherein, The support frame (31) is provided with a strip-shaped hole (311) extending in the second direction, and the pressure-bearing support (33) is provided with a connecting column (331) movably arranged in the strip-shaped hole (311).

3. The lightweight press of claim 2, wherein, The support frame (31) has a support surface (312) for bearing a workpiece, and a height difference exists between the pressure-bearing support (33) and the support surface (312), so that a gap is left between the pressure-bearing support (33) and the workpiece.

4. The lightweight press of claim 3, wherein, A plurality of groups of first reinforcing rib plates (313) are arranged in the length direction of the support frame (31) in the support frame (31), and the plurality of groups of first reinforcing rib plates (313) are arranged in the first direction.

5. The lightweight press of claim 3, wherein, A plurality of groups of second reinforcing rib plates (314) are arranged in the length direction of the support frame (31) in the support frame (31), and the second reinforcing rib plates (314) are arranged perpendicularly to the first reinforcing rib plates (313).

6. The lightweight press of claim 3, wherein, A plurality of groups of adjusting holes (13) are arranged on the frame (1) in the first direction, and the pin shaft (11) is inserted into the adjusting holes (13) for supporting the pressure-bearing mechanism (3).

7. The lightweight press according to any one of claims 1-6, characterized in that The pressing mechanism (2) comprises a sliding table (21) in sliding cooperation with the slide, and a jack (22) arranged on the sliding table (21), wherein the jack (22) has a telescopic part capable of telescoping in the first direction, and the telescopic part is connected with the frame (1).

8. The lightweight press of claim 7, wherein, ​ 9. The lightweight press of claim 1, wherein, ​ 10. The lightweight press of claim 1, wherein, ​ ​ ​ A pressing member (23) is arranged on the side of the sliding table (21) away from the jack (22); A resilient member (24) is connected to the frame (1) and the sliding table (21) at both ends in the first direction.

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