Adjustable hydraulic cushion structure of stamping device

Abstract

The utility model discloses an adjustable hydraulic cushion structure of a stamping device, which comprises a stamping workbench, a plurality of stamping stations are arranged on the stamping workbench side by side, hydraulic cushion components corresponding to the stamping stations one by one are arranged below the stamping workbench, and each hydraulic cushion component comprises a supporting seat and a lifting oil cylinder mounted at the lower end of the supporting seat. A stroke adjusting column which can only move axially is vertically arranged at the top of the supporting seat, an adjusting nut which is arranged on the outer side of the stroke adjusting column in a sleeving mode and is in threaded fit with the stroke adjusting column is arranged at the top of the supporting seat, a cushion block capable of concentrically ascending and descending along a stamping station is arranged above the supporting seat, and an ejector rod is vertically arranged at the upper end of the cushion block. The extending end of the lifting oil cylinder axially penetrates through the stroke adjusting column. The problems that an existing flat plate supporting and ejecting structure is prone to being uneven in stress and inflexible in stroke adjustment can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch device structure field technical field, concretely is adjustable hydraulic cushion structure of punch device. BACKGROUND

[0002] In the punch device of screw head, a plurality of punch stations will be arranged, and the processes of the plurality of punch stations are continuous. The force of each station is inconsistent, and an ejection device needs to be arranged to support and eject the screw head of each station. Since the workbench is large, the current practice is to make a flat plate to eject together. However, this will cause the bottom to tilt due to uneven force, causing the ejection device to be stuck. Moreover, the adjustment of the stroke is also difficult for the synchronous ejection of a flat plate, and the support position of each station also requires different strokes, which brings great difficulty to the process design of the screw head. SUMMARY

[0003] The utility model provides a kind of adjustable hydraulic cushion structure of punch device, can solve the problem that current flat plate support and eject structure is prone to uneven force, and stroke adjustment is not flexible.

[0004] To achieve the above object, the utility model provides the following technical scheme: an adjustable hydraulic cushion structure of punch device, comprising a punch workbench, a plurality of punch stations are arranged side by side on the punch workbench, a hydraulic cushion assembly is arranged below the punch workbench and corresponds to each punch station, the hydraulic cushion assembly comprises a support seat and a lifting cylinder mounted at the lower end of the support seat, a stroke adjusting column that can only move axially is vertically arranged on the top of the support seat, an adjusting nut is arranged on the top of the support seat and threaded with the outside of the stroke adjusting column, a cushion block that can be lifted concentrically along the punch station is arranged above the support seat, a top rod is vertically arranged at the upper end of the cushion block, the extending end of the lifting cylinder axially passes through the stroke adjusting column, the extending end of the lifting cylinder drives the cushion block to move upward when it is lifted, and the cushion block is lowered until it abuts against the upper end of the stroke adjusting column when the extending end of the lifting cylinder is retracted. Each punch station is provided with a stroke-adjustable hydraulic cushion assembly, wherein the height of the downward support position of the cushion block can be adjusted by arranging the adjusting nut and the stroke adjusting column to adapt to the support of the product in different punch processes, so that the design of the punch process is more flexible and reasonable.

[0005] As a preferred embodiment, the support seat is vertically symmetrical on both sides and is provided with a guide rod extending upward and connected to the punch workbench, the guide rod passes through both ends of the cushion block, and the cushion block is lifted along the guide rod, so that the lifting of the cushion block is relatively stable and will not be deflected or stuck.

[0006] As preferred, an upper jacking post is axially mounted on the extending end of the lifting oil cylinder, and the upper jacking post axially penetrates the stroke adjusting post, and the upper jacking post can be replaced as required to adjust the different jacking height of the cushion block.

[0007] Further, the two ends of the support base are provided with support blocks, the upper ends of the two support blocks are provided with a limiting plate, the adjusting nut is arranged between the support block and the support base, and the limiting plate can limit the axial position of the adjusting nut and the stroke adjusting post, so that the stroke adjustment is more accurate.

[0008] As preferred, an anti-rotation groove is arranged on one side of the stroke adjusting post along the axial direction, and an anti-rotation block is arranged on the limiting plate or the support base and embedded into the anti-rotation groove, so that the stroke adjusting post can only axially move and cannot rotate.

[0009] As preferred, limiting blocks are arranged at the two ends of the anti-rotation groove, the lifting limit position of the stroke adjusting post can be limited, and the stroke adjusting post and the adjusting nut are prevented from being separated.

[0010] As preferred, a shaft sleeve seat is arranged on the upper end of the cushion block, and the jacking rod is vertically inserted into the shaft sleeve seat and fixed, and different lengths of the jacking rod can be replaced as required.

[0011] As preferred, a pollution receiving box provided with a surrounding fence is further arranged on the upper side of the cushion block, and the guide rod and the shaft sleeve seat penetrate the pollution receiving box, so that the oil stains or metal scraps falling at the stamping station can be collected and cannot fall into the equipment.

[0012] As preferred, a position sensing rod is vertically arranged on one side of the cushion block, and at least one position sensor matched with the position sensing rod is arranged on the side of the support base, so that the lifting position of the cushion block can be sensed and matched with the action of the stamping device.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a hydraulic cushion assembly with adjustable stroke, which comprises a support base, a lifting oil cylinder, a cushion block, a stroke adjusting post, an adjusting nut, a jacking rod and a guide rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a front view structure diagram of the utility model;

[0016] Fig. 2 It is a local three-dimensional structure diagram of the utility model;

[0017] Fig. 3 It is a side view sectional structure diagram of the hydraulic cushion assembly of the utility model;

[0018] Fig. 4 It is a perspective structure diagram of the hydraulic cushion assembly of the utility model;

[0019] Fig. 5 It is a partial structure perspective view of the hydraulic cushion assembly of the utility model;

[0020] Fig. 6 It is a partial sectional structure view of the hydraulic cushion assembly of the utility model.

[0021] Reference signs:

[0022] 1, punch workbench, 2, punch work station, 3, hydraulic cushion assembly, 31, ejector rod, 32, shaft sleeve seat, 33, guide rod, 34, cushion block, 35, adjusting nut, 36, stroke adjusting column, 37, upper ejector rod, 38, lifting oil cylinder, 39, support seat, 41, pollution receiving box, 42, support block, 43, limiting plate, 44, position sensing rod, 45, position sensor, 46, limiting block, 47, anti-rotation block, 48, anti-rotation groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0024] As Figs. 1-6The utility model discloses to solve the problem that the existing flat plate support ejection structure is easy to bear uneven force and stroke adjustment is not flexible, and provides the following technical scheme: an adjustable hydraulic pad structure of a stamping device, the stamping workbench 1 is provided with a plurality of stamping stations 2 side by side on the stamping workbench 1, the lower side of the stamping workbench 1 is provided with a hydraulic pad assembly 3 corresponding to the stamping station 2, the hydraulic pad assembly 3 includes a support seat 39 and a lifting oil cylinder 38 installed at the lower end of the support seat 39, the top of the support seat 39 is vertically provided with a stroke adjustment column 36 that can only move axially, the top of the support seat 39 is provided with an adjusting nut 35 that is sleeved outside the stroke adjustment column 36 and threadedly matched, the upper side of the support seat 39 is provided with a pad block 34 that can be lifted concentrically along the stamping station 2, the upper end of the pad block 34 is vertically provided with a top rod 31, the extending end of the lifting oil cylinder 38 axially penetrates the stroke adjustment column 36, the extending end of the lifting oil cylinder 38 is lifted to drive the pad block 34 to move upwards, and the extending end of the lifting oil cylinder 38 is retracted to drive the pad block 34 to descend until the pad block 34 abuts against the upper end of the stroke adjustment column 36, each stamping station 2 is separately provided with a stroke-adjustable hydraulic pad assembly 3, wherein the height of the downward supporting position of the pad block 34 can be adjusted by arranging the adjusting nut 35 and the stroke adjustment column 36 to adapt to the support of the product in different stamping processes, so that the design of the stamping process is more flexible and reasonable.

[0025] Specifically, the support seat 39 serves as a support component of the hydraulic pad assembly 3 and is fixedly installed in the interior of the stamping equipment, for example, in the interior of a punch press, the support seat 39 is hollow in the interior and generally includes an upper plate, a lower plate and a side plate arranged between the upper plate and the lower plate. The top of the support seat 39 is provided with a through hole through which the stroke adjustment column 36 penetrates, and a groove for limiting the adjusting nut 35 is arranged around the through hole. A plurality of inner grooves can be arranged on the radial outer side wall of the adjusting nut 35, and the adjusting nut 35 can be rotated by means of the inner grooves through a tool, thereby facilitating adjustment of the position of the stroke adjustment column 36.

[0026] As a specific implementation step in the embodiment,

[0027] The top rod 31 serves to support the product to be stamped on the stamping station 2 and to eject the product when the pad block 34 moves upwards. When the stamping station 2 is stamping, the pad block 34 is pressed on the upper side of the stroke adjustment column 36 by its own weight, the lower end of the product is in contact with the top rod 31 to support the product, and then the stamping is performed. After the stamping is completed, the extending end of the lifting oil cylinder 38 is lifted to drive the pad block 34 and the top rod 31 to move to the highest position of their stroke, thereby ejecting the product from the stamping station 2. Therefore, the position of the product supported by the top rod 31 can be adjusted by adjusting the position of the stroke adjustment column 36.

[0028] In the embodiment, the two sides of the support base 39 are vertically symmetrically provided with guide rods 33 extending upward and connected with the punching workbench 1, the guide rods 33 pass through the two ends of the cushion block 34, the cushion block 34 is lifted along the guide rods 33, the lifting of the cushion block 34 is more stable, and the deflection and jamming of the cushion block 34 do not occur, and the copper guide sleeve can be arranged on the cushion block 34 and sleeved on the guide rod 33 to reduce the friction force.

[0029] In the embodiment, as shown in Figs. 1-2 , the extending end of the lifting oil cylinder 38 is axially provided with an upper jacking column 37, the upper jacking column 37 axially passes through the stroke adjusting column 36, and the upper jacking column 37 can be replaced as needed to adjust the different jacking height of the cushion block 34.

[0030] In order to limit the positions of the adjusting nut 35 and the stroke adjusting column 36, as shown in Figs. 1-2 , the two ends of the support base 39 are provided with support blocks 42, the upper ends of the two support blocks 42 are provided with a limiting plate 43, the adjusting nut 35 is arranged between the support block 42 and the support base 39, and the limiting plate 43 can limit the axial positions of the adjusting nut 35 and the stroke adjusting column 36, and the adjustment of the stroke is more accurate.

[0031] In some embodiments, as a rotation prevention structure of the stroke adjusting column 36, as shown in Figs. 5-6 , the stroke adjusting column 36 is axially provided with a rotation prevention groove 48 on one side, and the limiting plate 43 or the support base 39 is provided with a rotation prevention block 47 embedded in the rotation prevention groove 48, so that the stroke adjusting column 36 can only move axially and cannot rotate.

[0032] In some embodiments, the two ends of the rotation prevention groove 48 are respectively provided with limiting blocks 46, which can limit the lifting limit positions of the stroke adjusting column 36 and prevent the stroke adjusting column 36 from being separated from the adjusting nut 35, and when the stroke adjusting column 36 axially moves to abut against the limiting block 46, the stroke adjusting column 36 cannot move.

[0033] In the embodiment, the upper end of the cushion block 34 is provided with a shaft sleeve base 32, the jacking rod 31 is vertically inserted into the shaft sleeve base 32 and fixed, different lengths of the jacking rod 31 can be replaced as needed, and the upper end of the shaft sleeve base 32 is provided with a plug hole, and the jacking rod 31 is directly vertically inserted into the plug hole.

[0034] In some embodiments, as shown in Figs. 1-4As shown, the upper side of the cushion block 34 is further provided with a pollution receiving box 41 with a surrounding fence, the guide rod 33 and the shaft sleeve base 32 pass through the pollution receiving box 41, so that the oil stains or metal scraps falling at the stamping station 2 can be collected and cannot fall into the equipment, and the area of the pollution receiving box 41 can be larger than that of the cushion block 34.

[0035] In some embodiments, as Fig. 1 As shown, a position sensing rod 44 is vertically installed on one side of the cushion block 34, and at least one position sensor 45 matched with the position sensing rod 44 is installed on the side of the support base 39, so that the lifting position of the cushion block 34 can be sensed and matched with the action of the stamping device, for example, one position sensor 45 is installed on the upper end and the lower end of the side of the support base 39, when the cushion block 34 moves upward, the sensing block on the position sensing rod 44 passes through the position sensor 45 on the upper end and sends a signal, indicating that the ejection of the product is completed, when the cushion block 34 moves downward, the sensing block on the position sensing rod 44 passes through the position sensor 45 on the lower end and sends a signal, indicating that the downward movement of the cushion block 34 has reached the position and the stamping work can be performed.

[0036] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0037] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0038] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but must be based on that a person having ordinary skill in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of such technical solutions does not exist, also not within the protection scope required by the utility model.

Claims

1. An adjustable hydraulic pad structure of a press device, comprising a press table (1) on which a plurality of press stations (2) are arranged side by side, characterized in that, The lower part of the punching workbench (1) is provided with a hydraulic pad assembly (3) corresponding to the punching station (2), the hydraulic pad assembly (3) comprises a supporting seat (39) and a lifting oil cylinder (38) installed at the lower end of the supporting seat (39), the top of the supporting seat (39) is vertically provided with a stroke adjusting column (36) which can only move axially, the top of the supporting seat (39) is provided with an adjusting nut (35) which is sleeved outside the stroke adjusting column (36) and is threadedly matched, the upper part of the supporting seat (39) is provided with a pad block (34) which can be lifted concentrically along the punching station (2), the upper end of the pad block (34) is vertically provided with a top rod (31), the extending end of the lifting oil cylinder (38) axially penetrates the stroke adjusting column (36), when the extending end of the lifting oil cylinder (38) is extended, the pad block (34) is driven to move upward, when the extending end of the lifting oil cylinder (38) is retracted, the pad block (34) is driven to descend until the pad block (34) abuts against the upper end of the stroke adjusting column (36).

2. The adjustable hydraulic pad structure of a press apparatus according to claim 1, characterized by: The two sides of the supporting seat (39) are vertically and symmetrically provided with guide rods (33) which extend upward and are connected with the punching workbench (1), the guide rods (33) penetrate the two ends of the pad block (34), and the pad block (34) is lifted along the guide rods (33).

3. The adjustable hydraulic pad structure of a press apparatus according to claim 1, characterized by: The extending end of the lifting oil cylinder (38) is axially provided with an upending column (37), and the upending column (37) axially penetrates the stroke adjusting column (36).

4. The adjustable hydraulic pad structure of a press apparatus according to claim 1, characterized by: The two ends of the supporting seat (39) are provided with supporting blocks (42), and a limiting plate (43) is installed between the upper ends of the two supporting blocks (42), and the adjusting nut (35) is arranged between the supporting blocks (42) and the supporting seat (39).

5. The adjustable hydraulic pad structure of a press apparatus according to claim 4, characterized by: One side of the stroke adjusting column (36) is provided with an anti-rotation groove (48) along the axial direction, and the limiting plate (43) or the supporting seat (39) is provided with an anti-rotation block (47) which is embedded into the anti-rotation groove (48).

6. The adjustable hydraulic cushion structure of claim 5, wherein: The two ends of the anti-rotation groove (48) are respectively provided with limiting blocks (46).

7. The adjustable hydraulic cushion structure of claim 2, wherein: The upper end of the pad block (34) is provided with a shaft sleeve seat (32), and the top rod (31) is vertically inserted into the shaft sleeve seat (32) and fixed.

8. The adjustable hydraulic cushion structure of claim 7, wherein: The upper side of the pad block (34) is further provided with a pollution receiving box (41) which is provided with a surrounding fence, and the guide rods (33) and the shaft sleeve seat (32) penetrate the pollution receiving box (41).

9. The adjustable hydraulic cushion structure of claim 1, wherein: One side of the pad block (34) is vertically provided with a position sensing rod (44), and the side of the supporting seat (39) is provided with at least one position sensor (45) which matches the position sensing rod (44).

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