Anti-falling device for sliding block of hydraulic machine

Abstract

The utility model belongs to the technical field of hydraulic machines, and discloses a hydraulic machine sliding block anti-falling device which comprises a sliding block, guide holes are formed in the four corners of the sliding block, guide columns slide in the guide holes, and a flange plate is fixed to the upper end face of the sliding block. The upper end of the first connecting rod penetrates through the sliding block and the flange plate to be fixedly provided with a baffle, the first connecting rod is provided with first teeth meshed with the first gear, second gears are fixed to the two ends of the first gear through first rotating shafts, and second connecting rods meshed with the second teeth are arranged at the upper ends of the second gears. A third connecting rod is arranged at the lower end of the third gear, fourth teeth meshed with the third gear are arranged on the upper surface of the third connecting rod, a fourth connecting rod is fixed to one end of the second connecting rod, and a fifth connecting rod is fixed to one end of the third connecting rod; arc-shaped clamping plates surrounding the periphery of the guide hole are fixed to the two ends of the fourth connecting rod and the fifth connecting rod. When the sliding block falls, the arc-shaped clamping plate tightly holds the guide column to prevent the sliding block from falling.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic press, concretely relates to hydraulic press sliding block anti -drop device. BACKGROUND

[0002] With the continuous development of science and technology, hydraulic press is a kind of machinery that utilizes liquid static pressure to process metal, plastic, rubber, wood, powder and other products.It is often used in pressing process and pressing forming process, such as: forging, stamping, cold extrusion, straightening, bending, flanging, sheet drawing, powder metallurgy, press fitting, etc.

[0003] The connection of the sliding block and the piston rod of the hydraulic press generally adopts integral flange, the flange is connected with the piston rod through thread, and the sliding block is connected with the flange through screw, due to the eccentric load during work, the hydraulic press is prone to cause the screw to be loose and broken, and the sliding block falls under the action of gravity, which is easy to damage the workpiece below the sliding block. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model aims at providing hydraulic press sliding block anti-drop device, when the screw between the sliding block and the flange plate is broken, the arc-shaped clamping plate tightly holds the guide column, and the sliding block is prevented from falling.

[0005] The purpose of the utility model can be realized by the following technical scheme:

[0006] The hydraulic press sliding block anti-drop device comprises:

[0007] The sliding block is internally provided with a cavity, and a guide hole communicating with the cavity is formed at each corner of the sliding block, a guide column is slidably connected in the guide hole, and a flange plate is fixedly connected to the upper end surface of the sliding block.

[0008] Two first connecting rods are vertically and symmetrically arranged in the cavity, a baffle is fixedly connected to the upper end of the first connecting rod in sequence through the upper end surface of the sliding block and the flange plate, first teeth are arranged on the side surface of the first connecting rod, the first teeth are engaged with a first gear, the two ends of the first gear are fixedly connected with a first rotating shaft, the other end of the first rotating shaft is fixedly connected with a second gear, a second connecting rod is arranged on the upper end of the second gear, second teeth and third teeth are arranged on the lower surfaces of the two ends of the second connecting rod, the second teeth are engaged with the second gear, the third teeth are engaged with a third gear, a third connecting rod is arranged on the lower end of the third gear, a fourth tooth engaged with the third gear is arranged on the upper surface of the third connecting rod, a fourth connecting rod is fixedly connected to the end of the second connecting rod away from the first connecting rod, a fifth connecting rod is fixedly connected to the end of the third connecting rod close to the first connecting rod, arc-shaped clamping plates are fixedly connected to the two ends of the fourth connecting rod and the fifth connecting rod, and two arc-shaped clamping plates are symmetrically arranged on the periphery of each guide hole.

[0009] The above technical scheme has the following principles and technical effects:

[0010] When the screw connecting the flange and the sliding block is broken, the sliding block moves downward, and in the process of moving downward, the first connecting rod moves outward due to the blocking plate, the first gear rotates, the first rotating shaft and the second gear rotate, the second connecting rod moves in the direction of the first connecting rod, and at the same time, the second connecting rod drives the third gear to rotate, the third connecting rod moves away from the first connecting rod, at this time, the fourth connecting rod and the fifth connecting rod move towards each other, and further drive the two arc-shaped clamping plates symmetrically arranged on the side of the guide hole to move towards each other, clamp the guide column, and prevent the sliding block from falling further, thereby playing the role of preventing the sliding block from falling off.

[0011] Further, the third tooth and the fourth tooth are the same.

[0012] Further, the arc-shaped clamping plate is fixedly connected with an anti-skid layer on the inner side.

[0013] Further, the first connecting rod is provided with a sliding groove on the side away from the first tooth, and a guide rail is slidably connected in the sliding groove and fixedly connected in the cavity of the sliding block.

[0014] Further, the first rotating shaft is rotatably connected with a first supporting plate, and the first supporting plate is fixedly connected in the cavity of the sliding block.

[0015] Further, a second rotating shaft is fixedly connected between the two third gears, and a second supporting plate is rotatably connected on the second rotating shaft and fixedly connected in the cavity of the sliding block.

[0016] Further, the outer side of the arc-shaped clamping plate is fixedly connected with a limiting column, and the limiting column is slidably connected with the sliding block.

[0017] Further, the lower end of the guide column is fixedly connected with a workbench, the upper end of the guide column is fixedly connected with a top plate, the top plate is fixedly connected with a hydraulic cylinder, and the piston rod in the hydraulic cylinder is fixedly connected with the flange.

[0018] The nouns, conjunctions or adjectives involved in the above technical solutions are explained as follows:

[0019] Fixed connection refers to the connection of parts or components after being fixed, without any relative movement. It is divided into two types: detachable connection and non-detachable connection.

[0020] (1) Detachable connection is to fix the parts together by using screws, splines, wedge pins, etc. This connection method can be disassembled during maintenance and will not damage the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, and wedge pins), and they must be properly tightened.

[0021] (2) Non-detachable connections mainly refer to welding, riveting, and tenoning. Since they require forging, sawing, or oxygen cutting to disassemble during repair or replacement, spare parts generally cannot be reused. At the same time, when making connections, attention should be paid to workmanship quality, technical inspection, and remedial measures (such as calibration, polishing, etc.).

[0022] A threaded connection refers to a detachable connection in which the connected parts are connected together using a threaded part (or the threaded part of the connected parts).

[0023] A sliding connection is when two objects are in contact but not fixed and can slide relative to each other.

[0024] A rotational connection is a connection between parts that allows the parts to rotate relative to each other.

[0025] Beneficial effects of the utility model:

[0026] When the screw connecting the flange and the slider breaks, the slider moves downward. During the downward movement, due to the action of the baffle, the first connecting rod moves toward the outside of the slider, mobilizing the first gear to rotate, and the first gear drives the first rotating shaft and the second gear to rotate. The second gear drives the second connecting rod to move toward the first connecting rod. At the same time, the second connecting rod drives the third gear to rotate, and the third gear drives the third connecting rod to move away from the first connecting rod. At this time, the fourth connecting rod and the fifth connecting rod move toward each other, and then drive the two arc-shaped clamps symmetrically arranged on the side of the same guide hole to move toward each other, clamping the guide column to prevent the slider from falling further, thereby playing a role in preventing the slider from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Fig. 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0029] Fig. 2 It is a cross-sectional view of a slider according to an embodiment of the present utility model;

[0030] Fig. 3 It is a schematic diagram of the internal structure of the slider in an embodiment of the present utility model. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0033] According to the concept of the present application, embodiments of the hydraulic machine sliding block anti-falling device are described herein. Figs. 1-3 Specifically, the hydraulic machine sliding block anti-falling device is configured in a split structure, which has a sliding block 1, a guide column 4, a flange plate 5 and the like. Through the cooperation of the first connecting rod 6, the second connecting rod 12, the third connecting rod 16, the arc-shaped clamping plate 20 and the like, when the screw connecting the flange plate 5 and the sliding block 1 is broken, the sliding block 1 moves downward, and during the downward movement, the first connecting rod 6 moves outwardly due to the action of the baffle 7, which drives the first gear 9 to rotate, the first gear 9 drives the first shaft 10 and the second gear 11 to rotate, the second gear 11 drives the second connecting rod 12 to move towards the first connecting rod 6, at the same time, the second connecting rod 12 drives the third gear 15 to rotate, the third gear 15 drives the third connecting rod 16 to move away from the first connecting rod 6, at this time, the fourth connecting rod 18 and the fifth connecting rod 19 move towards each other, thereby driving the two arc-shaped clamping plates 20 symmetrically arranged on the side of the guide hole 3 to move towards each other, clamping the guide column 4 and preventing the sliding block 1 from falling further, thereby playing the role of preventing the sliding block 1 from falling off.

[0034] As shown in Figs. 1-3 , the hydraulic machine sliding block anti-falling device comprises:

[0035] The sliding block 1 is provided with a cavity 2 on the inner side, and a guide hole 3 communicating with the cavity 2 is formed at the four corners of the sliding block 1, a guide column 4 is slidably connected in the guide hole 3, and a flange plate 5 is fixedly connected to the upper end surface of the sliding block 1;

[0036] The first connecting rod 6 is vertically symmetrically arranged in the cavity 2, the upper end of the first connecting rod 6 is fixedly connected with the baffle 7 in sequence through the upper end face of the sliding block 1 and the flange plate 5, the side of the first connecting rod 6 is provided with the first gear tooth 8, the first gear tooth 8 is engaged with the first gear 9, the two ends of the first gear 9 are fixedly connected with the first rotating shaft 10, the other end of the first rotating shaft 10 is fixedly connected with the second gear 11, the upper end of the second gear 11 is provided with the second connecting rod 12, the lower surfaces of the two ends of the second connecting rod 12 are provided with the second gear tooth 13 and the third gear tooth 14, the second gear tooth 13 is engaged with the second gear 11, the third gear tooth 14 is engaged with the third gear 15, the lower end of the third gear 15 is provided with the third connecting rod 16, the upper surface of the third connecting rod 16 is provided with the fourth gear tooth 17 engaged with the third gear 15, the ends, away from the first connecting rod 6, of the two second connecting rods 12 are fixedly connected with the fourth connecting rod 18, the ends, close to the first connecting rod 6, of the two third connecting rods 16 are fixedly connected with the fifth connecting rod 19, and the two ends of the fourth connecting rod 18 and the fifth connecting rod 19 are fixedly connected with the arc-shaped clamping plates 20.

[0037] When the screw connected between the flange plate 5 and the sliding block 1 is broken during use, the sliding block 1 moves downwards, and in the moving process, the first connecting rod 6 moves to the outside of the sliding block 1 due to the action of the baffle 7, the first gear 9 is rotated, the first gear 9 drives the first rotating shaft 10 and the second gear 11 to rotate, the second gear 11 drives the second connecting rod 12 to move to the direction of the first connecting rod 6, meanwhile, the second connecting rod 12 drives the third gear 15 to rotate, the third gear 15 drives the third connecting rod 16 to move to the direction away from the first connecting rod 6, at this time, the fourth connecting rod 18 and the fifth connecting rod 19 move to each other, and further drive the two arc-shaped clamping plates 20 symmetrically arranged on the circumferential side of the same guide hole 3 to move to each other, clamp the guide column 4, prevent the sliding block 1 from further falling, and further play the role of preventing the sliding block 1 from falling off.

[0038] In an embodiment of the utility model, the third gear tooth 14 is same with the fourth gear tooth 17. Avoid the third gear 15 rotating when the movement interference.

[0039] In an embodiment of the utility model, the arc-shaped clamping plate 20 is fixedly connected with the antiskid layer in the inside. Such as rubber pad etc., can increase the friction force with the guide column 4, further prevent the sliding block 1 from falling.

[0040] In an embodiment of the utility model, the first connecting rod 6 is provided with the sliding groove 21 on the side away from the first gear tooth 8, the sliding groove 21 is slidably connected with the guide rail 22, and the guide rail 22 is fixedly connected in the cavity 2 of the sliding block 1. The vertical sliding of the first connecting rod 6 is improved in stability.

[0041] In one embodiment of the utility model, first connecting rod 6, two first connecting rod 6 along vertical symmetry is set in cavity 2, first connecting rod 6 upper end passes through the fixed connection of slide block 1 upper end surface and flange plate 5 has baffle 7 in proper order, first connecting rod 6 side is provided with first tooth 8, first tooth 8 is engaged with first gear 9, and first gear 9 both ends are fixedly connected with first shaft 10, and first shaft 10 other end is fixedly connected with second gear 11, and second gear 11 upper end is provided with second connecting rod 12, and second connecting rod 12 both ends lower surface is provided with second tooth 13 and third tooth 14, and second tooth 13 is engaged with second gear 11, and third tooth 14 is engaged with third gear 15, and third gear 15 lower end is provided with third connecting rod 16, and third connecting rod 16 upper surface is provided with fourth tooth 17 engaged with third gear 15, and two second connecting rod 12 are fixedly connected with fourth connecting rod 18 away from first connecting rod 6, and two third connecting rod 16 are fixedly connected with fifth connecting rod 19 close to first connecting rod 6, and fourth connecting rod 18 and fifth connecting rod 19 both ends are fixedly connected with arc clamping plate 20, and the circumferential side of every guide hole 3 is symmetrically provided with two arc clamping plates 20.

[0042] In one embodiment of the utility model, two third gears 15 are fixedly connected with second shaft 24 between, and second shaft 24 is rotatably connected with second branch 25, and second branch 25 is fixedly connected in the cavity 2 of slide block 1. The efficiency of the synchronous rotation of two third gears 15 is improved.

[0043] In one embodiment of the utility model, the outer side of arc clamping plate 20 is fixedly connected with limiting column 26, and limiting column 26 is slidably connected with slide block 1. The stability of arc clamping plate 20 movement is further improved.

[0044] In one embodiment of the utility model, the lower end of guide column 4 is fixedly connected with workbench 27, the upper end of guide column 4 is fixedly connected with top plate 28, top plate 28 is fixedly connected with hydraulic cylinder 29, and the piston rod 30 in hydraulic cylinder 29 is fixedly connected with flange plate 5.

[0045] The hydraulic machine slide block anti-falling device provided by the utility model is further described below in combination with the drawings and embodiments.

[0046] The hydraulic machine slide block anti-falling device comprises:

[0047] Slide block 1, the inner side of slide block 1 is provided with cavity 2, and the four corners of slide block 1 are provided with guide hole 3 communicated with cavity 2, and guide column 4 is slidably connected in guide hole 3, and flange plate 5 is fixedly connected on the upper end surface of slide block 1.

[0048] First connecting rod 6, two first connecting rod 6 along vertical symmetry is set in cavity 2, first connecting rod 6 upper end passes through the fixed connection of slide block 1 upper end surface and flange plate 5 has baffle 7 in proper order, first connecting rod 6 side is provided with first tooth 8, first tooth 8 is engaged with first gear 9, and first gear 9 both ends are fixedly connected with first shaft 10, and first shaft 10 other end is fixedly connected with second gear 11, and second gear 11 upper end is provided with second connecting rod 12, and second connecting rod 12 both ends lower surface is provided with second tooth 13 and third tooth 14, and second tooth 13 is engaged with second gear 11, and third tooth 14 is engaged with third gear 15, and third gear 15 lower end is provided with third connecting rod 16, and third connecting rod 16 upper surface is provided with fourth tooth 17 engaged with third gear 15, and two second connecting rod 12 are fixedly connected with fourth connecting rod 18 away from first connecting rod 6, and two third connecting rod 16 are fixedly connected with fifth connecting rod 19 close to first connecting rod 6, and fourth connecting rod 18 and fifth connecting rod 19 both ends are fixedly connected with arc clamping plate 20, and the circumferential side of every guide hole 3 is symmetrically provided with two arc clamping plates 20.

[0049] The third tooth 14 is identical to the fourth tooth 17.

[0050] The arc-shaped clamping plate 20 is internally fixedly connected with an anti-skid layer.

[0051] The first connecting rod 6 is provided with a sliding groove 21 on the side away from the first tooth 8, and a guide rail 22 is slidably connected in the sliding groove 21.

[0052] The first rotating shaft 10 is rotatably connected with a first supporting plate 23, and the first supporting plate 23 is fixedly connected in the cavity 2 of the sliding block 1.

[0053] The second rotating shaft 24 is fixedly connected between the two third gears 15, and the second rotating shaft 24 is rotatably connected with a second supporting plate 25, and the second supporting plate 25 is fixedly connected in the cavity 2 of the sliding block 1.

[0054] The arc-shaped clamping plate 20 is externally fixedly connected with a limiting column 26, and the limiting column 26 is slidably connected with the sliding block 1.

[0055] The lower end of the guide column 4 is fixedly connected with a workbench 27, and the upper end of the guide column 4 is fixedly connected with a top plate 28, and the top plate 28 is fixedly connected with a hydraulic cylinder 29, and the piston rod 30 in the hydraulic cylinder 29 is fixedly connected with the flange plate 5.

[0056] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The basic principles, main features and advantages of the present application have been shown and described. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. The hydraulic press slider anti-falling device is characterized by: include: A slider (1), wherein a cavity (2) is provided inside the slider (1), guide holes (3) communicating with the cavity (2) are provided at four corners of the slider (1), guide posts (4) are slidably connected in the guide holes (3), and a flange (5) is fixedly connected to the upper end surface of the slider (1); A first connecting rod (6), two of the first connecting rods (6) are vertically symmetrically arranged in the cavity (2), the upper ends of the first connecting rods (6) sequentially pass through the upper end surface of the slider (1) and are fixedly connected to the flange (5) with a baffle (7), the side surface of the first connecting rod (6) is provided with a first tooth (8), the first tooth (8) is meshed with a first gear (9), both ends of the first gear (9) are fixedly connected to a first rotating shaft (10), the other end of the first rotating shaft (10) is fixedly connected to a second gear (11), the upper end of the second gear (11) is provided with a second connecting rod (12), the lower surfaces of both ends of the second connecting rod (12) are provided with a second tooth (13) and a third tooth (14), the second tooth (13) is meshed with a first gear (9), The second gear (11) is meshed, the third tooth (14) is meshed with the third gear (15), a third connecting rod (16) is provided at the lower end of the third gear (15), and a fourth tooth (17) meshed with the third gear (15) is provided on the upper surface of the third connecting rod (16), the two second connecting rods (12) are fixedly connected to the fourth connecting rod (18) at one end away from the first connecting rod (6), and the two third connecting rods (16) are fixedly connected to the fifth connecting rod (19) at one end close to the first connecting rod (6), and both ends of the fourth connecting rod (18) and the fifth connecting rod (19) are fixedly connected to arc-shaped clamping plates (20), and two arc-shaped clamping plates (20) are symmetrically provided on the circumference of each guide hole (3).

2. The anti-falling device for the hydraulic press slide according to claim 1, characterized in that: The third tooth (14) is identical to the fourth tooth (17).

3. The anti-falling device for the hydraulic press slide according to claim 2, characterized in that: An anti-slip layer is fixedly connected to the inner side of the arc-shaped clamping plate (20).

4. The anti-falling device for the hydraulic press slide according to claim 3, characterized in that: A sliding groove (21) is provided on a side of the first connecting rod (6) away from the first tooth (8), a guide rail (22) is slidably connected in the sliding groove (21), and the guide rail (22) is fixedly connected in the cavity (2) of the slider (1).

5. The anti-falling device for the hydraulic press slide according to claim 4, characterized in that: A first support plate (23) is rotatably connected to the first rotating shaft (10), and the first support plate (23) is fixedly connected in the cavity (2) of the slider (1).

6. The anti-falling device for the hydraulic press slide according to claim 5, characterized in that: A second rotating shaft (24) is fixedly connected between the two third gears (15), a second support plate (25) is rotatably connected to the second rotating shaft (24), and the second support plate (25) is fixedly connected in the cavity (2) of the slider (1).

7. The anti-falling device for the hydraulic press slide according to claim 6, characterized in that: The outer side surface of the arc-shaped clamping plate (20) is fixedly connected to a limiting column (26), and the limiting column (26) is slidably connected to the slider (1).

8. The anti-falling device for the hydraulic press slide according to claim 1, characterized in that: The lower end of the guide column (4) is fixedly connected to a workbench (27), the upper end of the guide column (4) is fixedly connected to a top plate (28), the top plate (28) is fixedly connected to a hydraulic cylinder (29), and the piston rod (30) in the hydraulic cylinder (29) is fixedly connected to the flange (5).

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