Downward pressing mechanism

Abstract

The utility model provides a pressing mechanism. Before the article is pressed down, the hanging rod droops to be in contact with the top surface of the article through the gravity of the hanging rod in advance, the hanging piece is locked through the fixing module, at the moment, force application points for applying pressure are evenly distributed on the top surface of the article, and then the lifting power module drives the lifting frame to ascend and descend, so that downward pressure can be evenly applied to the article; therefore, when the top surface of the article is not a plane, pressure can be uniformly applied to the top surface of the article, so that the risk that the article is damaged due to non-uniform stress is reduced; the utility model belongs to the technical field of automation equipment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automation equipment, and particularly relates to a downward pressing mechanism. BACKGROUND

[0002] The downward pressing mechanism is a mechanism for pressing an object to realize pressing test or pressing assembly of the object, and is therefore often applied to production equipment and test equipment. Since the conventional downward pressing mechanism generally drives the pressing plate to lift and descend by a power module to complete pressing of the object, if the surface of the object to be pressed in contact with the pressing plate is a non-planar surface or other surface that cannot be completely attached to the pressing plate, the pressed surface of the object will be unevenly stressed, and thus the object is easily damaged. SUMMARY

[0003] The utility model aims to provide a downward pressing mechanism to solve the technical problem in the background art.

[0004] The downward pressing mechanism comprises a workbench, a support mounted on the workbench, a lifting power module mounted on the support, a lifting frame driven by the lifting power module, and a plurality of hanging piece holes arranged on the lifting frame. Each hanging piece hole is provided with a hanging rod that can lift and descend. The hanging rod is provided with a hanging head for mounting on the hanging piece hole, so that the hanging rod can sag by its own gravity. The lifting frame is provided with a fixing module for fixing the height of the hanging rod.

[0005] When the object with uneven top surface is pressed, the hanging rod is first lowered to contact the top surface of the object by its own gravity, and then the hanging piece is locked by the fixing module. Thereafter, the lifting power module drives the lifting frame to press the top surface of the object.

[0006] Based on the above technical solution, the utility model has the following advantages:

[0007] 1. Before pressing the object, the hanging rod is first lowered to contact the top surface of the object by its own gravity, and then the hanging piece is locked by the fixing module. At this time, the pressure points are evenly distributed on the top surface of the object. Thereafter, the lifting power module drives the lifting frame to lift and descend, thereby evenly pressing the object. Therefore, when the top surface of the object is a non-planar surface, the object can also be evenly pressed, thereby reducing the risk of damage caused by uneven stress.

[0008] 2. Since it can apply uniform downward pressure to items with non-planar top surfaces without the need for a custom-shaped pressure plate, it can be used for items with different top surface shapes, thereby improving the versatility of the application scenarios. In addition, compared to a custom-shaped pressure plate, it can effectively reduce the manufacturing cost of the equipment when pressing down on items of various shapes or when changing the lifting and lowering of items.

[0009] To further optimize the above technical solutions, they can be combined with one or more of the following implementation methods without conflict.

[0010] In some embodiments, an auxiliary plate is provided below the lifting frame. The auxiliary plate has a number of auxiliary holes. The position and number of the auxiliary holes correspond to the position and number of the hanging rods, so that the lower end of each hanging rod can pass through the auxiliary hole at its corresponding position.

[0011] Based on the aforementioned technical solution, the present invention can further achieve the following beneficial effects: enabling the hanging rod to rise and fall more stably by its own weight in a linear motion, thereby making more stable contact with the top surface of the object.

[0012] Traditional fixing modules generally use clamps, cylinders, and lead screws to clamp items with force. Therefore, when fixing the hanging rod, there is a very high chance of damaging the hanging rod. Also, when fixing the hanging rod, the hanging rod may be pushed to move and scratch the items.

[0013] Therefore, in some embodiments, the fixing module includes a control groove disposed in the auxiliary plate, and an elastically deformable airbag tube is disposed in the control groove. One side of the control groove is cut into one side of the auxiliary hole so that a part of the side of the airbag tube passes through one side of the auxiliary hole, and the airbag tube is connected to the air source.

[0014] Based on the aforementioned technical solution, the present invention further achieves the following beneficial effects:

[0015] 1. After the hanging rod hangs down and contacts the top surface of the item due to its own weight, air is supplied to the air bladder tube through the air source, causing the air bladder tube to expand at the part located in the auxiliary hole. At this time, the expanded part of the air bladder tube will push the hanging rod to stick tightly to the other side of the auxiliary hole, thereby fixing the hanging rod.

[0016] 2. Because air is compressible and the air bladder tube is elastic, the hanging rod has a certain buffer range when and after it is fixed, which can effectively reduce the damage to the hanging rod and prevent the hanging rod from shifting and scratching the items.

[0017] In some implementations, a gap is provided between the auxiliary hole and the hanging rod;

[0018] Based on the technical solutions, the utility model further realizes the beneficial effects:

[0019] 1、In the hanging rod is contacted with the article through the self weight, the hanging rod has the space of displacement (also namely the space of adjusting position), thereby the hanging rod can be contacted with the article more stably;

[0020] 2、When the hanging rod is lifted and lowered through the self weight, the friction between the hanging rod and the air bag pipe can be reduced, thereby the life of the air bag pipe and the hanging rod is improved.

[0021] In some embodiments, the fixing module includes a slide rail and a displacement power module, the slide rail is fixed on the lifting frame, the auxiliary plate is provided with a sliding block sliding on the slide rail, and the displacement power module is used for pushing the auxiliary plate to drive the auxiliary hole to align with or be misaligned with the hanging piece hole, and the displacement power module can be selected from a cylinder module, a lead screw module and other modules that can push the auxiliary plate to move.

[0022] Based on the technical solutions, the utility model further realizes the beneficial effects:

[0023] 1、Optionally, after the hanging rod is contacted with the top surface of the article under the self weight, the displacement power module pushes the auxiliary plate to drive the auxiliary hole to be misaligned with the hanging piece hole, so that the auxiliary hole and the hanging piece hole clamp the hanging rod, thereby the hanging rod is clamped and fixed;

[0024] 2、Optionally, after the hanging rod is pushed to be tightly fixed with the other side of the auxiliary hole at the position where the air bag pipe is inflated, the descending power module drives the lifting frame to rise and reset, at this time, the displacement power module pushes the auxiliary plate to drive the auxiliary hole to be misaligned with the hanging piece hole, so that the auxiliary hole and the hanging piece hole clamp the hanging rod, thereby the hanging rod is further reinforced, so as to avoid the influence of the upward and downward displacement of the hanging rod on the pressing precision and force during the process that the lifting power module drives the lifting frame to lift and press the article.

[0025] In some embodiments, a limiting buffer for contacting the auxiliary plate is installed beside the slide rail.

[0026] Based on the technical solutions, the utility model further realizes the beneficial effects: during the process that the displacement power module pushes the auxiliary plate to drive the auxiliary hole to align with or be misaligned with the hanging piece hole, the auxiliary plate is limited and buffered by the limiting buffer, thereby the auxiliary hole and the hanging piece hole are prevented from being misaligned too much to clamp and damage the hanging rod.

[0027] In some embodiments, a lifting guide column is installed on the workbench, and the lifting frame is provided with a guide sleeve for sleeving and sliding on the lifting guide column.

[0028] Based on the aforementioned technical solution, this utility model further achieves the following beneficial effects: the lifting power module can stably drive the lifting frame to perform lifting activities in a straight line, thereby achieving a more stable application of downward pressure to the object.

[0029] In some implementations, there is a gap between the bottom hole and the support column;

[0030] Based on the aforementioned technical solution, the present invention further achieves the following beneficial effects:

[0031] 1. During the contact period between the support column and the object, provide the support rod with space to adjust its position and tilt, so that the support rod can better contact and adhere to the object;

[0032] 2. When the support rod is raised and lowered, it can reduce the friction between the hanging rod and the airbag tube, thereby improving the life of the airbag tube, spring and support rod. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model, the following will briefly explain the drawings and reference numerals used in the description of the specific embodiments.

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is a top view of the present invention;

[0036] Figure 3 yes Figure 2 A cross-sectional view of part AA shown;

[0037] Figure 4 yes Figure 3 A magnified view of part B shown;

[0038] Figure 5 This is a schematic diagram of the structure of the hanging rod with the bottom end facing upwards as described in this utility model.

[0039] Icon labels:

[0040] 1. Workbench; 11. Support; 12. Lifting power module; 13. Lifting guide column; 14. Guide sleeve; 2. Lifting frame; 21. Hanging hole; 22. Hanging rod; 23. Hanging head; 3. Auxiliary plate; 31. Auxiliary hole; 4. Control slot; 41. Airbag tube; 5. Slide rail; 51. Shifting power module; 52. Slider; 53. Limit buffer. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description is provided with reference to the accompanying drawings.

[0042] Embodiment 1

[0043] As shown in the figure, the embodiment provides a pressing mechanism, which comprises a workbench 1, an auxiliary plate 3 and a fixing module. Figures 1 to 5

[0044] The workbench 1 is provided with a support 11 and a lifting guide column 13, the support 11 is provided with a lifting power module 12, the lifting power module 12 drives a lifting frame 2, and the lifting frame 2 is provided with a guide sleeve 14 for sleeving and sliding on the lifting guide column 13. The lifting frame 2 is provided with a plurality of hanging hole 21, each of which is provided with a hanging rod 22 which can be lifted and moved, and the hanging rod 22 is provided with a hanging head 23 for hanging on the hanging hole 21, so that the hanging rod 22 can be lowered by its own gravity.

[0045] The lifting frame is provided below with an auxiliary plate 3, which is provided with a plurality of auxiliary holes 31, the positions and numbers of which are matched with those of the hanging rod 22, so that the lower end of each hanging rod 22 can pass through the auxiliary hole 31 at the corresponding position. There is a gap between the auxiliary hole 31 and the hanging rod 22.

[0046] The fixing module is used for fixing the height of the hanging rod 22. The fixing module comprises a control groove 4 arranged in the auxiliary plate 3, and an air bag tube 41 which can be elastically deformed is arranged in the control groove 4. One side of the control groove 4 is cut into one side of the hanging hole 21, so that a part of the side of the air bag tube 41 passes through one side of the hanging hole 21, and the air bag tube 41 is connected with an air source.

[0047] The following is the working principle of the pressing mechanism described in the embodiment.

[0048] When pressing the top surface of an uneven object, the lifting power module 12 drives the lifting frame 2 to lower the hanging rod 22 in advance, at this time, the hanging rod 22 is lowered by its own gravity to contact the top surface of the object; the air source inputs air to the air bag tube 41, so that the air bag tube 41 at the position of the auxiliary hole 31 expands, at this time, the expanded part of the air bag tube 41 pushes the hanging rod 22 to tightly fix the other side of the auxiliary hole 31, so as to fix the hanging rod 22; thereafter, the lifting power module 12 drives the lifting frame 2 to press the top surface of the object, so as to apply a pressing force to the top surface of the object.

[0049] Embodiment 2

[0050] As shown in the figure, the embodiment provides a pressing mechanism, which comprises a workbench 1, an auxiliary plate 3 and a fixing module. Figures 1 to 5

[0051] ​​The workbench 1 is provided with a support 11 and a lifting guide column 13, the support 11 is provided with a lifting power module 12, the lifting power module 12 drives a lifting frame 2, and the lifting frame 2 is provided with a guide sleeve 14 for sleeving and sliding on the lifting guide column 13.

[0052] The lifting frame is provided below with an auxiliary plate 3, the auxiliary plate 3 is provided with a plurality of auxiliary holes 31, the positions and the number of the auxiliary holes 31 are matched with the positions and the number of the hanging rods 22, so that the lower end of each hanging rod 22 can pass through the auxiliary hole 31 at the corresponding position. A gap is provided between the auxiliary hole 31 and the hanging rod 22.

[0053] The fixing module is used for fixing the height of the hanging rod 22. The fixing module includes a sliding rail 5 and a displacement power module 51, the sliding rail 5 is fixed on the lifting frame 2, the auxiliary plate 3 is provided with a sliding block 52 sliding on the sliding rail 5, and the displacement power module 51 is used for pushing the auxiliary plate 3 to drive the auxiliary hole 31 to align with or be dislocated from the hanging hole 21. A limiting buffer 53 is provided beside the sliding rail 5 for contacting the auxiliary plate 3.

[0054] The following is the working principle of the pressing mechanism described in the embodiment.

[0055] When pressing the object with uneven top surface, the displacement power module 51 pushes the auxiliary plate 3 to drive the auxiliary hole 31 to align with the hanging hole 21, the lifting power module 12 drives the lifting frame 2 to drive the hanging rod 22 to descend in advance, at this time, the hanging rod 22 is contacted with the top surface of the object by its own gravity, then the displacement power module 51 pushes the auxiliary plate 3 to drive the auxiliary hole 31 to be dislocated from the hanging hole 21, so that the auxiliary hole 31 and the hanging hole 21 clamp the hanging rod 22, thereby realizing clamping and fixing the hanging rod 22, then the lifting power module 12 drives the lifting frame 2 to press the top surface of the object, thereby applying a pressing force to the top surface of the object.

[0056] Embodiment 3

[0057] As shown in Figures 1 to 5 , the embodiment provides a pressing mechanism, which includes a workbench 1, an auxiliary plate 3 and a fixing module.

[0058] The workbench 1 is provided with a support 11 and a lifting guide column 13, the support 11 is provided with a lifting power module 12, the lifting power module 12 drives a lifting frame 2, and the lifting frame 2 is provided with a guide sleeve 14 used for sleeving and sliding on the lifting guide column 13.

[0059] The lifting frame is provided below with an auxiliary plate 3, the auxiliary plate 3 is provided with a plurality of auxiliary holes 31, the positions and the number of the auxiliary holes 31 are matched with the positions and the number of the hanging rods 22, so that the lower end of each hanging rod 22 can pass through the auxiliary hole 31 at the corresponding position. A gap is arranged between the auxiliary hole 31 and the hanging rod 22.

[0060] The fixing module is used for fixing the height of the hanging rod 22. The fixing module comprises a control groove 4, a sliding rail 5 and a displacement power module 51. The control groove 4 is arranged in the auxiliary plate 3, the control groove 4 is provided with an air bag tube 41 capable of elastically deforming, one side of the control groove 4 is cut into one side of the hanging hole 21, so that a part of the air bag tube 41 passes through one side of the hanging hole 21, and the air bag tube 41 is connected with an air source. The sliding rail 5 is fixed on the lifting frame 2, the auxiliary plate 3 is provided with a sliding block 52 sliding on the sliding rail 5, and the displacement power module 51 is used for pushing the auxiliary plate 3 to drive the auxiliary hole 31 to be aligned or misaligned with the hanging hole 21. A limiting buffer 53 used for contacting the auxiliary plate 3 is arranged beside the sliding rail 5.

[0061] The following is the working principle of the pressing mechanism described in the embodiment.

[0062] When the top surface of the object is pressed, the displacement power module 51 pushes the auxiliary plate 3 to drive the auxiliary hole 31 to be aligned with the hanging hole 21, the lifting power module 12 drives the lifting frame 2 to drive the hanging rod 22 to descend in advance, and during this period, the hanging rod 22 is lowered to contact the top surface of the object by its own gravity. Thereafter, the air source inputs air to the air bag tube 41, so that the air bag tube 41 at the position of the auxiliary hole 31 expands, at this time, the expanded position of the air bag tube 41 pushes the hanging rod 22 to tightly fix the other side of the auxiliary hole 31, so as to preliminarily fix the hanging rod 22; thereafter, the lifting power module 12 drives the lifting frame 2 to drive the hanging rod 22 to ascend and reset; thereafter, the displacement power module 51 pushes the auxiliary plate 3 to drive the auxiliary hole 31 to be misaligned with the hanging hole 21, so that the auxiliary hole 31 and the hanging hole 21 clamp the hanging rod 22, thereby realizing clamping and reinforcing the hanging rod 22. Thereafter, the lifting power module 12 drives the lifting frame 2 to drive the hanging rod 22 to press the top surface of the object, so as to apply a pressing force to the top surface of the object.

Claims

1. A pressing mechanism, characterized in that, include: A workbench (1) is provided, on which a bracket (11) is installed. A lifting power module (12) is installed on the bracket (11). The lifting power module (12) drives a lifting frame (2). A plurality of hanging holes (21) are arranged on the lifting frame (2). Each hanging hole (21) is provided with a lifting rod (22) that can be raised and lowered. The hanging rod (22) is provided with a hanging head (23) for hanging on the hanging hole (21) so that the hanging rod (22) can hang down by its own weight. The lifting frame (2) is provided with a fixing module for fixing the height of the hanging rod (22). When pressing down on an item with an uneven top surface, the hanging rod (22) is lowered by its own weight until it contacts the top surface of the item, and then the hanging part is locked by the fixing module. After that, the lifting power module (12) drives the lifting frame (2) to press down the top surface of the item.

2. The pressing mechanism according to claim 1, characterized in that: An auxiliary plate (3) is provided below the lifting frame. The auxiliary plate (3) has a number of auxiliary holes (31). The position and number of the auxiliary holes (31) match the position and number of the hanging rods (22) so that the lower end of each hanging rod (22) can pass through the auxiliary hole (31) at its corresponding position.

3. The pressing mechanism according to claim 2, characterized in that: The fixed module includes a control groove (4) disposed in the auxiliary plate (3). An elastically deformable airbag tube (41) is disposed in the control groove (4). One side of the control groove (4) is cut into one side of the hanging hole (21) so that a part of the side of the airbag tube (41) passes through one side of the hanging hole (21). The airbag tube (41) is connected to an air source.

4. A pressing mechanism according to claim 3, characterized in that: A gap is provided between the auxiliary hole (31) and the hanging rod (22).

5. A pressing mechanism according to any one of claims 2 to 4, characterized in that: The fixed module includes a slide rail (5) and a displacement power module (51). The slide rail (5) is fixed on the lifting frame (2). The auxiliary plate (3) is equipped with a slider (52) that slides on the slide rail (5). The displacement power module (51) is used to push the auxiliary plate (3) to make the auxiliary hole (31) aligned or misaligned with the hanging hole (21).

6. A pressing mechanism according to claim 5, characterized in that: A limiting buffer (53) for contacting the auxiliary plate (3) is installed next to the slide rail (5).

7. A pressing mechanism according to claim 1, characterized in that: The workbench (1) is equipped with a lifting guide column (13), and the lifting frame (2) is equipped with a guide sleeve (14) for sliding on the lifting guide column (13).

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