Safety mechanism for forging press and forging press

Abstract

The safety mechanism for the forging press is arranged at the position of a plate frame of the forging press and comprises a safety oil cylinder arranged on the outer side face of the plate frame of the forging press, a communication space leading to an area below a sliding block is formed between every two adjacent plate frames, and a piston rod of the safety oil cylinder moves in the communication space. The transition rod is arranged in the communication space in the length direction of the communication space, and one end of the transition rod is connected with one end of a piston rod of the safety oil cylinder; and the safety plug pin piece is located in the communicating space, one end of the safety plug pin piece is connected with the other end of the transition rod, and the safety plug pin piece extends out of the plate frame and is located below the sliding block to limit sliding of the sliding block. The device does not need an additional fixed installation environment, and has the advantages of being simple and convenient to install and convenient to disassemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of forging presses, and particularly relates to a safety mechanism for a forging press and a forging press. Background Art

[0002] A forging press is a device used for metal and mechanical cold processing to change the external shape of metals. The safety mechanism of a forging press is a key component to ensure the safety of operators. For example, safety bolts and locking mechanisms are used to prevent the accidental movement of working components with safety bolts during die adjustment or equipment maintenance of the forging press, thus avoiding injuries.

[0003] Currently, for the safety mechanism of domestic forging presses, the safety oil cylinder is generally located on the upper crossbeam, and the pin is placed on the slider of the forging press. When the slider rises, the pin is driven to a position aligned with the extending path of the piston rod of the safety oil cylinder. The piston rod of the safety oil cylinder extends and inserts into the pin to restrict the movement of the slider, thereby playing the role of the safety mechanism. Such devices generally require sufficient space, so for forging presses with limited installation space, general safety mechanisms are not applicable. The purpose of the present utility model is to propose a new safety mechanism for a forging press to solve the problem of limited installation space for the safety mechanism. Summary of the Utility Model

[0004] To solve the above technical problems, the purpose of the present utility model is to provide a safety mechanism for a forging press and a forging press, which do not require an additional fixed installation environment and have the advantages of simple installation and easy disassembly.

[0005] To achieve the above utility model purpose, the technical solutions adopted by the present utility model are as follows:

[0006] In the first aspect of the present utility model, a safety mechanism for a forging press is proposed, which is arranged at the plate frame of the forging press and includes:

[0007] A safety oil cylinder is arranged on the outer side surface of the plate frame of the forging press. A communication space leading to the area below the slider is formed between adjacent plate frames, and the piston rod of the safety oil cylinder moves within the communication space;

[0008] A transition rod is arranged in the communication space along the length direction of the communication space, and one end of the transition rod is connected to one end of the piston rod of the safety oil cylinder;

[0009] A safety pin member is located within the communication space. One end of the safety pin member is connected to the other end of the transition rod. The safety pin member extends within the plate frame and is located below the slider to restrict the downward movement of the slider.

[0010] Preferably, the safety oil cylinder further includes a cylinder block, a rear end cover, a front end cover, and a mounting plate. The rear end cover is disposed at one end of the cylinder block away from the plate frame to seal the cylinder block. The front end cover is disposed at one end of the cylinder block close to the plate frame. The front end cover is provided with a hole adapted to the movement of the piston rod. The mounting plate is disposed on the outer side surface of the plate frame. The front end cover is connected to the mounting plate. The mounting plate is also provided with a hole adapted to the movement of the piston rod. An internal hexagonal groove is provided at the inner end of the piston rod inside the cylinder block. The outer end of the piston rod is fixedly connected to the transition rod. The transition rod is threadedly connected to the safety pin member.

[0011] More preferably, the communication space is formed by connecting a transition area and a pin area. The transition area is larger than the pin area. The safety pin member is located within the pin area, and the shape of the safety pin member is adapted to the pin area. The transition rod is located within the transition area.

[0012] More preferably, an anti-rotation flat key is provided on the side surface of the safety pin member. The inner wall of the pin area adjacent to the anti-rotation flat key is a plane. During the extension or retraction of the safety pin member, the anti-rotation flat key always moves along the inner wall of the plane.

[0013] Preferably, a recess is provided on the side surface of the bottom of the slider. The recess on the side surface of the bottom of the slider and the adjacent plate frame form a locking space. When the safety pin member extends, it enters the locking space on the same side. The bottom surface of the locking space is open. The length of the safety pin member is less than the transverse depth of the locking space at the bottom of the slider inside the forging press.

[0014] Preferably, a connecting member is provided between the piston rod and the transition rod. The connecting member is sleeved on the outer side surface of the outer end of the piston rod, and the connecting member is fixedly connected to the transition rod. Wherein, an annular fitting groove is provided on the circumferential side surface of the outer end of the piston rod. The inner wall of the connecting member is adapted to the shape of the outer end of the piston rod. The inner wall of the connecting member outside the fitting groove extends and protrudes into the fitting groove to lock the piston rod and the transition rod.

[0015] More preferably, a docking member is provided on the end surface of the piston rod facing the transition rod, and a docking groove is provided on the end surface of the transition rod facing the piston rod. The docking member is embedded in the docking groove to connect the piston rod and the transition rod.

[0016] More preferably, a flat portion is provided on the part of the piston rod inside the connecting member, which is adapted to the internal shape of the connecting member.

[0017] More preferably, the safety mechanism for the forging press further includes a detection component, which is located in the transition area. The detection component includes a mounting rod, a front photoelectric eye, and a rear photoelectric eye. The mounting rod is arranged on one side of the transition rod along the extending direction of the piston rod. The front photoelectric eye and the rear photoelectric eye are both fixedly arranged on the mounting rod. Among them, the front photoelectric eye is located outside the position where the connecting component is located when the piston rod extends to the limit position, and the rear photoelectric eye is located outside the position where the connecting component is located when the piston rod retracts to the limit position.

[0018] In the second aspect of the present invention, the present invention also provides a forging press, which includes the above-mentioned safety mechanism for the forging press.

[0019] Beneficial effects:

[0020] The present invention can be directly connected to the plate frame of the forging press, has the advantage of simple installation, and does not require an additional fixed installation environment. The safety mechanism of the present invention has a particularly convenient disassembly structure, simplifies the operation of maintenance and replacement, and is worthy of popularization and use. Description of the drawings

[0021] Figure 1 The following shows the schematic connection of the safety mechanism of the present invention with the plate frame of the forging press Figure 1 ;

[0022] Figure 2 The following shows the schematic connection of the safety mechanism of the present invention with the plate frame of the forging press Figure 2

[0023] Figure 3 The following shows the schematic diagram of the safety mechanism of the present invention Figure 1 ;

[0024] Figure 4 The following shows the schematic diagram of the safety mechanism of the present invention Figure 2 ;

[0025] Figure 5 The following shows Figure 4 the cross-sectional schematic diagram in the A-A direction of

[0026] Figure 6 The following shows the schematic diagram of the safety mechanism of the present invention Figure 3 .

[0027] Reference numerals: 1 - safety mechanism, 2 - rear plate frame, 3 - slider, 4 - locking space, 5 - front plate frame;

[0028] 11 - safety oil cylinder, 12 - transition rod, 13 - connecting piece, 14 - safety pin piece, 15 - communication space, 16 - anti-rotation flat key, 17 - detection component;

[0029] 111 - Piston rod, 112 - Cylinder block, 113 - Front end cover, 114 - Rear end cover, 115 - Mounting plate, 116 - Hexagon socket, 131 - Left connecting block, 132 - Right connecting block, 151 - Transition area, 152 - Pin area, 171 - Mounting rod, 172 - Front electric eye, 173 - Rear electric eye. Detailed implementation manners

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will describe the specific implementation manners of the present invention with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.

[0031] As Figures 1-6 shown, the present invention provides a safety mechanism for a forging press, which is applicable to existing forging presses, such as winding forging presses. The safety mechanism for a forging press is arranged between the plate frames of the forging press and includes:

[0032] Safety oil cylinder 11, which is arranged on the outer side surface of the plate frames of the forging press. A communication space leading to the area below the slider 3 is formed between adjacent plate frames. The piston rod 111 of the safety oil cylinder 11 moves within the communication space.

[0033] Transition rod 12, which is arranged in the communication space 15 along the length direction of the communication space 15. One end of the transition rod 12 is connected to the outer end of the piston rod 111 of the safety oil cylinder 11.

[0034] Safety pin member 14, which is within the communication space 15. One end of the safety pin member 14 is connected to the other end of the transition rod 12. The safety pin member 14 extends out within the plate frames and is below the slider 3 to restrict the slider 3 from sliding down.

[0035] In the present invention, when the piston rod 111 of the safety oil cylinder 11 retracts, the safety pin member 14 retracts into the plate frames. At this time, the slider 3 can slide down freely. When the piston rod 111 of the safety oil cylinder 11 extends, the front part of the safety pin member 14 extends out. At this time, the front part of the safety pin member 14 is below the slider 3.

[0036] In the present invention, the safety oil cylinder 11 further includes a cylinder block 112, a rear end cover 114, a front end cover 113 and a mounting plate 115, as Figure 3As shown in the figure, the rear end cover 114 is arranged at one end of the cylinder block 112 away from the plate frame to seal the cylinder block 112. The front end cover 113 is arranged at one end of the cylinder block 112 close to the plate frame. The front end cover 113 is provided with a hole for the piston rod 111 to extend. The mounting plate 115 is arranged on the outer side of the plate frame. The front end cover 113 is connected to the mounting plate 115. The mounting plate 115 is also provided with a hole for the piston rod 111 to pass through. An internal hexagonal groove 116 is arranged at the inner end of the piston rod 111 inside the cylinder block 112. The outer end of the piston rod 111 is fixedly connected to the transition rod 12. The transition rod 12 is threadedly connected to the safety pin member 14.

[0037] During the use process, since the safety pin member 14 will be deformed by the impact of the downward sliding of the slider 3, when it is necessary to disassemble the safety oil cylinder 11, first remove the rear end cover 114, connect the rear end of the piston rod 111 with an internal hexagonal wrench, rotate the piston rod 111 to drive the transition rod 12 to separate from the safety pin member 14, and then remove the safety oil cylinder 11 from the plate frame. At this time, the safety pin member 14 still remains in the plate frame. Knock the safety pin member 14 forward with a long rod, and the safety pin member 14 falls from the gap between the slider 3 and the main frame, thus solving the problem of replacing the safety pin member 14.

[0038] As Figure 3 shown in the figure, the communication space 15 is formed by connecting the transition area 151 and the pin area 152. The transition area 151 is larger than the pin area 152. The safety pin member 14 is located in the pin area 152, and the shape of the safety pin member 14 is adapted to the pin area 152 to restrict the rotation of the safety pin member 14 in the pin area 152. The transition rod 12 is located in the transition area 151. It is easy to understand that since the shape of the safety pin member 14 is adapted to the pin area 152, the pin area 152 plays a guiding role in the extension or retraction of the safety pin member 14.

[0039] Furthermore, in order to better restrict the rotation of the safety pin member 14 in the pin area 152, an anti-rotation flat key 16 is arranged on the side surface of the safety pin member 14. Correspondingly, the inner wall of the pin area 152 adjacent to the anti-rotation flat key 16 is a plane, so that when the safety pin member 14 extends or retracts, the anti-rotation flat key 16 always moves along the inner wall of the plane, effectively preventing the rotation of the safety pin member 14.

[0040] A concave position is arranged on the bottom side surface of the slider 3. The concave position on the bottom side surface of the slider 3 and the adjacent plate frame form a locking space 4. When the safety pin member 14 extends, it enters the locking space 4 on the same side. The bottom surface of the locking space 4 is open. The length of the safety pin member 14 is less than the transverse depth of the annular locking space 4 on the bottom side surface of the slider 3 in the forging press, which is convenient for the deformed safety pin member 14 to fall downward from the locking space 4 of the slider 3 when replacing the safety pin member 14. As Figure 1As shown, a recess is provided on the bottom side surface of the slider 3. A locking space 4 is formed between the recess on the bottom side surface of the slider 3 and the adjacent plate frame. When the slider 3 is in the upper position near the forging press, the locking space 4 communicates with the communication space 15. At this time, if a part of the safety bolt member 14 extends out of the communication space 15, a part of the safety bolt member 14 is located below the slider 3, restricting the descent of the slider 3. It is easy to understand that the lateral depth of the locking space 4 refers to the dimension in the locking space 4 in the direction consistent with the length direction of the communication space 15.

[0041] The transition rod 12 is threadedly connected to the safety bolt member 14. Specifically, a threaded hole is provided on the end face of the safety bolt member 14, and the side surface of one end of the transition rod 12 facing the safety bolt member 14 is an external thread surface. That is, one end of the transition rod 12 is screwed into the threaded hole of the safety bolt member 14 to achieve connection. The setting of the anti-rotation flat key 16 and the internal shape of the bolt insertion area 152 are both to prevent the safety bolt member 14 and the transition rod 12 from rotating and separating.

[0042] Furthermore, a connecting member 13 is provided between the piston rod 111 and the transition rod 12. The connecting member 13 is sleeved on the outer side surface of the outer end portion of the piston rod 111, and the connecting member 13 is fixedly connected to the transition rod 12. Among them, an annular fitting groove is provided on the circumferential side surface of the outer end portion of the piston rod 111. The inner wall of the connecting member 13 is adapted to the shape of the outer end portion of the piston rod 111. The inner wall of the connecting member 13 outside the fitting groove extends and protrudes into the fitting groove, locking the piston rod 111 and the transition rod 12.

[0043] To prevent the piston rod 111 and the transition rod 12 from rotating, a flat portion is provided on the part of the piston rod 111 located inside the connecting member 13, which is adapted to the internal shape of the connecting member 13, as Figure 5 shown in the cross-section of the piston rod 111. Among them, the flat portion refers to a non-circular cross-sectional shape formed by processing. When the piston rod 111 is connected to the connecting member 13, since the cross-section of the piston rod 111 is non-circular, the piston rod 111 and the connecting member 13 will not rotate relative to each other. Under the action of the connecting member 13, the piston rod 111 and the transition rod 12 will not rotate relative to each other. When the piston rod 111 is rotated, it will drive the transition rod 12 to rotate synchronously to drive the separation of the transition rod 12 and the safety bolt member 14.

[0044] As Figure 5 shown, the connecting member 13 is composed of a left connecting block 131 and a right connecting block 132. The left connecting block 131 and the right connecting block 132 surround and lock the outer end portion of the piston rod 111, and both the left connecting block 131 and the right connecting block 132 are fixedly connected to the end face of the transition rod 12.

[0045] Furthermore, a docking member is provided on the end face of the piston rod 111 facing the transition rod 12, and a docking groove is provided on the end face of the transition rod 12 facing the piston rod 111. The docking member is embedded in the docking groove to connect the piston rod 111 and the transition rod 12.

[0046] The safety mechanism for the forging press further includes a detection assembly 17. The detection assembly 17 is located in the transition area 151. The detection assembly 17 includes a mounting rod 171, a front photoelectric eye 172, and a rear photoelectric eye 173. As Figure 4 shown, the mounting rod 171 is arranged on one side of the transition rod 12 along the extending direction of the piston rod 111. Both the front photoelectric eye 172 and the rear photoelectric eye 173 are fixedly arranged on the mounting rod 171. Among them, the front photoelectric eye 172 is located outside the position where the connecting assembly is located when the piston rod 111 extends to the limit position, and the rear photoelectric eye 173 is located outside the position where the connecting assembly is located when the piston rod 111 retracts to the limit position. The front photoelectric eye 172 and the right photoelectric eye are conventional detection sensors, such as proximity sensors.

[0047] The above has elaborated in detail on the embodiments provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A safety mechanism for a forging press, characterized in that, It is arranged at the plate frame of the forging press and includes: A safety oil cylinder (11) is arranged on the outer side surface of the plate frame of the forging press. A communication space leading to the area below the slider (3) is formed between adjacent plate frames. The piston rod (111) of the safety oil cylinder (11) moves within the communication space; A transition rod (12) is arranged within the communication space (15) along the length direction of the communication space (15). One end of the transition rod (12) is connected to one end of the piston rod (111) of the safety oil cylinder (11); A safety latch member (14) is within the communication space (15). One end of the safety latch member (14) is connected to the other end of the transition rod (12). The safety latch member (14) extends within the plate frame and is below the slider (3) to restrict the downward movement of the slider (3).

2. The safety mechanism for a forging press according to claim 1, characterized in that, The safety oil cylinder (11) further includes a cylinder block (112), a rear end cover (114), a front end cover (113), and a mounting plate (115). The rear end cover (114) is arranged at the end of the cylinder block (112) away from the plate frame to seal the cylinder block (112). The front end cover (113) is arranged at the end of the cylinder block (112) close to the plate frame. The front end cover (113) is provided with a hole adapted to the movement of the piston rod (111). The mounting plate (115) is arranged on the outer side surface of the plate frame. The front end cover (113) is connected to the mounting plate (115). The mounting plate (115) is also provided with a hole adapted to the movement of the piston rod (111). An internal hexagonal groove (116) is arranged at the inner end of the piston rod (111) within the cylinder block (112). The outer end of the piston rod (111) is fixedly connected to the transition rod (12). The transition rod (12) is threadedly connected to the safety latch member (14).

3. The safety mechanism for a forging press according to claim 1 or 2, characterized in that, The communication space (15) is formed by the communication of a transition area (151) and a latch area (152). The transition area (151) is larger than the latch area (152). The safety latch member (14) is within the latch area (152), and the shape of the safety latch member (14) is adapted to the latch area (152). The transition rod (12) is within the transition area (151).

4. The safety mechanism for a forging press according to claim 3, characterized in that, An anti-rotation flat key (16) is arranged on the side surface of the safety latch member (14). The inner wall of the latch area (152) adjacent to the anti-rotation flat key (16) is a plane. During the extension or retraction of the safety latch member (14), the anti-rotation flat key (16) always moves along the inner wall of the plane.

5. The safety mechanism for a forging press according to claim 1, 2 or 4, characterized in that A connecting member (13) is arranged between the piston rod (111) and the transition rod (12). The connecting member (13) is sleeved outside the outer end side surface of the piston rod (111), and the connecting member (13) is fixedly connected to the transition rod (12). Among them, an annular fitting groove is arranged on the circumferential side surface of the outer end of the piston rod (111). The inner wall of the connecting member (13) is adapted to the shape of the outer end of the piston rod (111). The inner wall of the connecting member (13) outside the fitting groove extends and protrudes into the fitting groove to lock the piston rod (111) and the transition rod (12).

6. The safety mechanism for a forging press according to claim 5, characterized in that, The part of the piston rod (111) inside the connecting piece (13) is provided with a flattened position, which is adapted to the internal shape of the connecting piece (13).

7. The safety mechanism for a forging press according to claim 1, 2 or 4, characterized in that, The end face of the piston rod (111) facing the transition rod (12) is provided with a docking piece, and the end face of the transition rod (12) facing the piston rod (111) is provided with a docking groove. The docking piece is embedded in the docking groove to connect the piston rod (111) and the transition rod (12).

8. The safety mechanism for a forging press according to claim 6, characterized in that, It further includes a detection component (17). The detection component (17) is located in the transition area (151). The detection component (17) includes a mounting rod (171), a front photoelectric eye (172) and a rear photoelectric eye (173). The mounting rod (171) is arranged on one side of the transition rod (12) along the extending direction of the piston rod (111). The front photoelectric eye (172) and the rear photoelectric eye (173) are both fixedly arranged on the mounting rod (171). Among them, the front photoelectric eye (172) is located outside the position where the connecting component is located when the piston rod (111) extends to the limit position, and the rear photoelectric eye (173) is located outside the position where the connecting component is located when the piston rod (111) retracts to the limit position.

9. The safety mechanism for a forging press according to claim 1, 2 or 4, characterized in that, A concave position is provided on the bottom side of the slider (3). The concave position on the bottom side of the slider (3) and the adjacent plate frame form a locking space (4). When the safety bolt (14) extends, it enters the locking space (4) on the same side. The bottom surface of the locking space (4) is open, and the length of the safety bolt (14) is less than the transverse depth of the locking space (4) at the bottom of the slider (3) in the forging press.

10. A forging press, characterized in that, It includes the safety mechanism (1) for a forging press according to any one of claims 1-9.

Images