Iron sheet flat pressing machine

Abstract

A flattening device comprises a driving mechanism and a flattening mechanism which is arranged at the output end of the driving mechanism and located above a workbench, the flattening mechanism comprises a mounting plate, a pressure applying column, an inverted-U-shaped plate and a pressing plate, the mounting plate is arranged at the output end of the driving mechanism and connected with the pressure applying column, and the pressing plate is arranged at the output end of the driving mechanism and connected with the inverted-U-shaped plate. The pressing column comprises a guide column and a pressing head of an inverted-cone-shaped table structure, a guide hole is formed in the inverted-U-shaped plate, the lower end of the inverted-U-shaped plate is connected with the pressing plate, the guide column penetrates through the guide hole, the guide hole is located in the projection plane of the pressing head on the inverted-U-shaped plate, and a bottom groove allowing the pressing head to stretch into is formed in the pressing plate. The iron sheet is pre-pressed and positioned by the pressing plate, the lower end face of the pressing plate can be parallel to the upper end face of the workbench by abutting the pressure applying head of the inverted conical table structure against the bottom groove, downward pressure can be transmitted to the pressing plate more uniformly and dispersedly, the iron sheet is uniformly pressed by the pressing plate, and uniform stress and flattening effect of the iron sheet are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of magnet component processing devices, in particular to an iron sheet flat press. Background Art

[0002] In magnet products, usually multiple magnet pieces are adhesively bonded to one side of an iron sheet to form a product with a required structure. To ensure the bonding stability between the iron sheet and multiple magnet pieces and the accurate position of the magnet pieces on the iron sheet, the surface of the iron sheet cannot be uneven, and the iron sheet (especially the bonding surface) needs to have excellent flatness.

[0003] In the prior art, such as a narrow, thin and short iron sheet flattening machine with the application number 201920989991.9, its principle is that after the iron sheet is bitten by the feeding wheel, it enters the flattening gap between the upper supporting roller part and the lower supporting roller part under the action of the conveying force of the feeding wheel for flattening, so that the residual curvature of the iron sheet gradually becomes smaller to meet the flattening requirements. On the one hand, its structure is relatively complex. On the other hand, it needs to be leveled during continuous movement. On the third hand, it requires the iron sheet to have a certain length to be supported and fed in the lower supporting roller part, and there are certain requirements for the shape and form of the iron sheet.

[0004] Therefore, it is necessary to provide a flat press with a simple structure, easy to operate, and having little requirement for the shape of the iron sheet to meet the flattening processing of the iron sheet (especially applied to magnet components). Summary of the Utility Model

[0005] The purpose of the utility model is to provide an iron sheet flat press. The pressing plate pre-presses and positions the iron sheet. The pressing head with an inverted conical frustum structure abuts against the bottom groove to make the lower end surface of the pressing plate parallel to the upper end surface of the workbench and transfer the downward pressure more evenly and dispersedly to the pressing plate, so as to realize the uniform downward pressing of the pressing plate on the iron sheet and ensure the uniform force and flattening effect of the iron sheet.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: an iron sheet flat press, including a machine table, and:

[0007] At least one workbench arranged on the machine table,

[0008] A flattening device matching the number of the workbenches, the flattening device comprising a driving mechanism arranged on a gantry on the machine table, and a flattening mechanism arranged at the output end of the driving mechanism and located above the workbench, the flattening mechanism comprising a mounting plate, a pressing column, an inverted U-shaped plate and a pressing plate, the mounting plate being arranged at the output end of the driving mechanism and connected to the pressing column, the pressing column comprising a guiding column and a pressing head arranged at the lower end of the guiding column and having an inverted conical frustum structure, the inverted U-shaped plate being provided with a guiding hole and having the lower end connected to the pressing plate, the guiding column passing through the guiding hole, and the guiding hole being located within the projection plane of the pressing head on the inverted U-shaped plate, the pressing plate being provided with a bottom groove for the pressing head to extend into.

[0009] As a further optimization, the bottom groove has an inverted conical frustum structure, matching the shape and structure of the pressing head and having a larger abutting area.

[0010] As a further optimization, the horizontal cross-sections of the guiding column and the guiding hole are matching polygons or ellipses, which can prevent the pressing plate from rotating relative to the guiding column.

[0011] As a further optimization, preferably the horizontal cross-sections of the guiding column and the guiding hole are both squares, and the pressing head forms an abutting platform protruding from the guiding column, and the abutting of the abutting platform against the inverted U-shaped plate can drive the pressing plate to move upward and reset.

[0012] As a further optimization, the driving mechanism is a lifting cylinder or a lifting electric cylinder.

[0013] As a further optimization, the iron sheet flattening machine further comprises at least a pair of pre-pressing mechanisms symmetrically arranged on both sides of the inverted U-shaped plate, the pre-pressing mechanism comprising a guiding column, a sleeve and an elastic member, the guiding column being arranged on the pressing plate, the sleeve being arranged on the mounting plate, a part of the guiding column extending into the sleeve, the elastic member being sleeved on the guiding column and respectively abutting against the pressing plate and the sleeve.

[0014] As a further optimization, the elastic member is a spring.

[0015] As a further optimization, both the pressing plate and the workbench are made of marble and both have excellent flatness.

[0016] As a further optimization, the number of the workbenches and the flattening mechanisms is two each, and the flattening of two iron sheets can be carried out at one time, which can improve the processing efficiency.

[0017] As a further optimization, a positioning disk is fixed on the machine table, and the lower part of the workbench is embedded in a positioning groove on the positioning disk.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] 1. The pressing plate pre-presses and positions the iron sheet. The pressing head with an inverted conical frustum structure abuts against the bottom groove. On the one hand, it can ensure the parallelism between the lower end face of the pressing plate and the upper end face of the workbench. On the other hand, it can more evenly disperse the downward pressure to the pressing plate to realize the uniform downward pressing of the iron sheet by the pressing plate, ensuring the uniform force and flattening effect of the iron sheet.

[0020] 2. The excellent flatness of the lower end face of the pressing plate and the upper end face of the workbench can ensure the flattening effect of the iron sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the structural diagram of the present utility model.

[0022] Figure 2 is the exploded view of the flattening mechanism of the present utility model.

[0023] Figure 3 is the cross-sectional view of the flattening mechanism of the present utility model.

[0024] Figure 4 is the structural diagram of the flattening mechanism in another embodiment of the present utility model. DETAILED DESCRIPTION OF THE INVENTION

[0025] The following are specific embodiments of the present utility model in combination with the drawings, and the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0026] Such as Figures 1 to 3As shown in the figure, an iron sheet flattening machine includes a machine table 10, a workbench 20, a gantry 30 and a flattening device 40. The workbench 20 is preferably a marble platform, and its upper end surface has excellent flatness. Two workbenches 20 are arranged side by side on the machine table 10. The gantry 30 is arranged on the machine table 10 and is located beside the workbench 20. There are two flattening devices 40 on it for corresponding to the two workbenches 10 respectively. The flattening device 40 includes a driving mechanism 41 arranged on the gantry 30 and a flattening mechanism 42 arranged at the output end of the driving mechanism 41 and located above the workbench 20. The driving mechanism 41 is selected as a servo electric cylinder. The flattening mechanism 42 includes a mounting plate 421, a pressing column 422, an inverted U-shaped plate 423 and a pressing plate 424. The mounting plate 421 is arranged at the output end of the driving mechanism 41 and is fixedly connected to the pressing column 422. The pressing column 422 includes a guiding column 4221 and a pressing head 4222 arranged at the lower end of the guiding column 4221 and having an inverted conical platform structure. The inverted U-shaped plate 423 is provided with a guiding hole 4230 and is connected to the pressing plate 424 at the lower end. The pressing plate 424 is also preferably a marble platform with excellent flatness at the bottom end surface. The guiding column 4221 passes through the guiding hole 4230, and the guiding hole 4230 is located within the projection plane of the pressing head 4222 on the inverted U-shaped plate 423. The pressing plate 424 is provided with a bottom groove 4240 for the pressing head 4222 to extend into.

[0027] In the present utility model, an iron sheet is placed on the workbench 20, and the flattening machine is started. The driving mechanism 41 drives the flattening mechanism 42 to move downward. First, the lower end of the pressing plate 424 abuts against the iron sheet. At this time, the pressing column 422 does not abut against the pressing plate 424. As the flattening mechanism 42 continues to move downward, the guiding column 4221 moves downward relative to the guiding hole 4230 until the lower end of the pressing head 4222 extends into the bottom groove 4240, and the downward pressure is transmitted to the pressing plate 424 through the abutment between the side wall of the pressing head 4222 and the bottom groove 4240, and then the downward pressure is transmitted to the iron sheet on the workbench 20 through the pressing plate 424 to complete the flattening action of the iron sheet.

[0028] In the present utility model, the iron sheet is pre-pressed by the pressing plate 424 to ensure the stable position of the iron sheet. Then, the parallel state between the lower end surface of the pressing plate 424 and the upper end surface of the workbench 20 can be ensured by the abutment between the pressing head 4222 with an inverted conical platform structure and the bottom groove 4240, and the downward pressure can be transmitted to the pressing plate 424 more evenly and dispersedly, realizing the uniform downward pressing of the iron sheet by the pressing plate 424 as large as possible in area, ensuring the uniform force on the iron sheet, and avoiding the poor flattening effect caused by the non-pressurization of some parts of the iron sheet. Therefore, it has a wide range of applications and can be used for flattening iron sheets of various shapes; and the excellent flatness of the pressing plate 424 and the workbench 20 can ensure the flattening effect on the iron sheet.

[0029] Further, the bottom groove 4240 is also in the structure of an inverted conical frustum, which is matched with the shape and structure of the pressing head 4222, so that the pressing head 4222 can extend deeper into the bottom groove 4220 and abut against the inner wall of the bottom groove 4220. The increase in the abutting area can ensure that the force transmission is more uniform and dispersed, which is beneficial to ensuring the flattening effect of the iron sheet.

[0030] The horizontal cross-sections of the guide posts 4221 and the guide holes 4230 are polygons or ellipses that match each other, which can prevent the inverted U-shaped plate 423 and the pressing plate 424 from rotating relative to the guide posts 4221, that is, it can ensure the smoothness of the up and down movement of the pressing plate 424 and the stability when contacting the iron sheet.

[0031] Preferably, the horizontal cross-sections of the guide posts 4221 and the guide holes 4230 are both squares, and a contact platform 422a protruding from the guide posts 4221 is formed at the upper end of the pressing head 4222 (that is, the projection plane of the guide posts 4221 is located inside the pressing column 4222). By the abutment of the contact platform 422a and the inverted U-shaped plate 423, the inverted U-shaped plate 423 and the pressing plate 424 can be driven to move upward for resetting during the process of the driving mechanism 41 driving the mounting plate 421 and the pressing column 422 to move upward.

[0032] As Figure 4 shown, in another embodiment of the present utility model, the iron sheet flattening press further includes a pair of pre-pressing mechanisms 50 symmetrically arranged on both sides of the inverted U-shaped plate 423. The pre-pressing mechanism 50 includes a guide post 51, a sleeve 52 and an elastic member 53. The guide post 51 is arranged on the pressing plate 424, the sleeve 52 is arranged on the mounting plate 421, the upper part of the guide post 51 extends into the sleeve 52, and the elastic member 53 is preferably a spring, which is sleeved on the guide post 51, and the lower end and the upper end respectively abut against the pressing plate 424 and the annular bottom wall of the sleeve 52.

[0033] In this embodiment, while positioning and pre-pressing the iron sheet located on the workbench 20 by the self-weight of the pressing plate 424, by continuously driving the mounting plate 421 to move downward by the driving mechanism 41 and continuously compressing the elastic member 53 by the sleeve 52, the downward pressure on the pressing plate 424 can be increased. On the one hand, under the action of a relatively large pressure, the position of the pressing plate 424 (iron sheet) is more stable. On the other hand, while the pressing column 422 presses the center position of the pressing plate 424, a pair of pre-pressing mechanisms 50 can be used to press the side of the pressing plate 424. It can not only have a greater acting force, but also have a more dispersed acting area, which can further improve the flattening effect of the iron sheet (the force is greater and more dispersed). In addition, by setting the upper part of the guide post 51 to be slidable relative to the sleeve 52, the elastic member 53 can be positioned and the verticality during the action of the elastic member 53 can be ensured.

[0034] Again, as Figure 1As shown in the figure, a positioning disk 11 is fixed on the machine table 10. The lower part of the workbench 20 is embedded in the positioning groove 110 on the positioning disk 11, which facilitates the installation and disassembly of the workbench 20, is convenient for cleaning and maintenance, and is also convenient for replacing workbenches 20 of different specifications (heights).

[0035] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A flat iron sheet press, comprising a machine table, characterized in that, Further included are: at least one workbench disposed on the machine table, a flattening device matching the number of the workbenches, the flattening device including a driving mechanism disposed on a gantry on the machine table and a flattening mechanism disposed at an output end of the driving mechanism and above the workbench, the flattening mechanism including a mounting plate, a pressing column, an inverted U-shaped plate and a pressing plate, the mounting plate being disposed at the output end of the driving mechanism and connected to the pressing column, the pressing column including a guiding column and a pressing head disposed at a lower end of the guiding column and having an inverted conical frustum structure, the inverted U-shaped plate being provided with a guiding hole and having a lower end connected to the pressing plate, the guiding column passing through the guiding hole, and the guiding hole being located within a projection plane of the pressing head on the inverted U-shaped plate, and the pressing plate being provided with a bottom groove for the pressing head to extend into.

2. The iron sheet flat press according to claim 1, wherein The bottom groove has an inverted conical frustum structure.

3. The iron sheet flat press according to claim 1, wherein The horizontal cross sections of the guiding column and the guiding hole are matching polygons or ellipses.

4. The iron sheet press according to claim 1 or 3, characterized in that The horizontal cross sections of the guiding column and the guiding hole are both squares, and the pressing head forms an abutting platform protruding from the guiding column.

5. The iron sheet flat press according to claim 1, characterized in that, The driving mechanism is a lifting cylinder or a lifting electric cylinder.

6. The iron sheet flat press according to claim 1, characterized in that, Further included are at least a pair of pre-pressing mechanisms symmetrically disposed on two sides of the inverted U-shaped plate, the pre-pressing mechanism including a guiding column, a sleeve and an elastic member, the guiding column being disposed on the pressing plate, the sleeve being disposed on the mounting plate, a part of the guiding column extending into the sleeve, and the elastic member being sleeved on the guiding column and respectively abutting against the pressing plate and the sleeve.

7. The flat iron sheet press according to claim 6, wherein, The elastic member is a spring.

8. The iron sheet flat press according to claim 1, wherein, Both the pressing plate and the workbench are made of marble.

9. The iron sheet flat press according to claim 1 or 8, characterized in that, The numbers of the workbench and the flattening mechanism are both two.

10. The iron sheet flat press according to claim 1, characterized in that, A positioning disk is fixed on the machine table, and a lower part of the workbench is embedded in a positioning groove on the positioning disk.

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