Hydraulic machine safety device

Abstract

The utility model belongs to the technical field of hydraulic machines, and provides a hydraulic machine safety device which comprises a fixing base, a supporting column and a main spring. Wherein the fixed seat is arranged between a base of the hydraulic machine and a sliding workbench and is fixed on the base; the supporting column is rotationally mounted on the fixed seat through a rotating arm, the supporting column is used for being driven by the rotating arm to rotate to a sliding path of the sliding workbench or leaving the sliding path of the sliding workbench, and the supporting column further penetrates through the rotating arm and can move in the axial direction of the supporting column relative to the rotating arm; the axial direction of the supporting column is parallel to the sliding direction of the sliding workbench. The two ends, in the elastic deformation direction of the main spring, of the main spring abut against the supporting column and the rotating arm correspondingly, and an initial interval of a set distance is formed between the supporting column and the base.

Description

Technical Field

[0001] The present application belongs to the technical field of hydraulic presses, and more specifically, to a safety device for a hydraulic press. Background Art

[0002] Hydraulic presses play an important role in industrial production. They are driven by high-pressure hydraulic oil to achieve fast and precise stamping actions. However, in actual applications, when it is necessary to replace the mold or adjust the mold installed on the base, there may be a safety hazard that the sliding table of the hydraulic press may fall due to its own weight due to the hydraulic system. This falling phenomenon may not only cause damage to the equipment, but also cause personal injury to the operator and even cause production accidents. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a hydraulic press safety device to solve the technical problem of automatic falling of the sliding worktable of the hydraulic press existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a hydraulic press safety device, comprising:

[0005] A fixed seat, disposed between the base of the hydraulic press and the sliding table and fixed on the base;

[0006] A support column is rotatably mounted on the fixed seat through a rotating arm, the support column is used to be driven by the rotating arm to rotate to the sliding path of the sliding worktable or to leave the sliding path of the sliding worktable, the support column also penetrates the rotating arm and can move along its own axial direction relative to the rotating arm, and the axial direction of the support column is parallel to the sliding direction of the sliding worktable;

[0007] The main spring has two ends along its own elastic deformation direction respectively abutting against the support column and the rotating arm to form an initial interval of a set distance between the support column and the base.

[0008] Optionally, the rotation axis of the rotating arm is parallel to the supporting column.

[0009] Optionally, the rotating arm extends in a direction perpendicular to its own rotating axis, and the supporting column and the fixing seat are respectively connected to two ends of the rotating arm.

[0010] Optionally, the fixing seat is connected with a first limiting bolt and a second limiting bolt located on the rotation path of the rotating arm, and the first limiting bolt and the second limiting bolt are arranged at intervals and enable the rotating arm to rotate within a preset angle range.

[0011] Optionally, a first movable pin close to the first limiting bolt and a second movable pin close to the second limiting bolt are movably mounted on the fixing seat, and a recess for partially accommodating the first movable pin or the second movable pin is provided on the rotating arm;

[0012] The hydraulic press safety device also includes a secondary spring connected to the first movable pin and the second movable pin. When the rotating arm rotates to the position of the first movable pin or the second movable pin, the first movable pin or the second movable pin is detachably clamped in the pit through the secondary spring.

[0013] Optionally, the first movable pin and the second movable pin are configured to be spherical at one end close to the rotating arm.

[0014] Optionally, the hydraulic press safety device further comprises a position sensor mounted on the base and used for detecting the position of the rotating arm.

[0015] Optionally, the hydraulic press safety device further comprises a support detachably connected to the base, and the position sensor is mounted on the support.

[0016] Optionally, a fixing sleeve is provided on the supporting column;

[0017] The main spring abuts between the fixing sleeve and the rotating arm.

[0018] Optionally, the fixing seat is arranged close to an edge of the base.

[0019] The beneficial effect of the hydraulic press safety device provided by the present application is that: compared with the prior art, the fixed seat in the hydraulic press safety device of the present application is arranged between the base of the hydraulic press and the sliding worktable, and by rotating the rotating arm connected to the fixed seat, the support column connected to the rotating arm can be rotated to the sliding path of the sliding worktable or leave the sliding path of the sliding worktable. When the support column is rotated to the sliding path of the sliding worktable, since the axial direction of the support column is parallel to the sliding direction of the sliding worktable, it can overcome the elastic force of the main spring and slide along its own axial direction relative to the rotating arm after contacting the sliding worktable, so as to abut between the base of the hydraulic press and the sliding worktable and form support for the sliding worktable, which can effectively prevent the sliding worktable from falling. When the hydraulic press needs to work normally, the support column can be rotated away from the sliding path of the sliding worktable by the rotating arm, so that the hydraulic press can be used normally. Therefore, the hydraulic press safety device provided in the present application can well protect the sliding worktable of the hydraulic press from falling, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of the overall structure of the hydraulic press safety device provided in the embodiment of the present application;

[0022] Figure 2 A schematic diagram of a hydraulic press safety device provided in an embodiment of the present application in a protection position;

[0023] Figure 3 for Figure 2 A magnified view of the structure at center;

[0024] Figure 4 A schematic diagram of the overall structure of the rotating arm provided in an embodiment of the present application;

[0025] Figure 5 A partial structural sectional view of the hydraulic press safety device provided in an embodiment of the present application.

[0026] Among them, the figure marks in the figure are: 101, fixed seat; 102, supporting column; 103, rotating arm; 104, main spring; 105, first limiting bolt; 106, second limiting bolt; 107, first movable pin; 108, second movable pin; 109, pit; 110, auxiliary spring; 111, position sensor; 112, support; 113, fixed sleeve; 201, base; 202, sliding workbench. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Please also read Figures 1 to 5 Now, a hydraulic press safety device provided in the embodiment of the present application is described. The hydraulic press safety device comprises a fixing seat 101, a supporting column 102 and a main spring 104. Among them:

[0032] The fixed seat 101 is arranged between the base 201 and the sliding table 202 of the hydraulic press and fixed on the base 201. The support column 102 is rotatably mounted on the fixed seat 101 through the rotating arm 103. The support column 102 is used to be driven by the rotating arm 103 to rotate and rotate to the sliding path of the sliding table 202 or leave the sliding path of the sliding table 202. The support column 102 also penetrates the rotating arm 103 and can move along its own axial direction relative to the rotating arm 103. The axial direction of the support column 102 is parallel to the sliding direction of the sliding table 202. The two ends of the main spring 104 along its own elastic deformation direction are respectively abutted against the support column 102 and the rotating arm 103 and form an initial interval of a set distance between the support column 102 and the base 201. It can be understood that the purpose of setting the main spring 104 in this embodiment is to form an initial interval of a set distance between the support column 102 and the base 201 to facilitate the rotation of the support column 102, thereby avoiding motion interference with the base 201. When the support column 102 rotates to between the sliding table 202 and the base 201 and is located on the sliding path of the sliding table 202 , the support column 102 can overcome the elastic force of the main spring 104 under the abutment of the sliding table 202 , thereby abutting against the base 201 .

[0033] According to the above structure provided in this embodiment, the fixed seat 101 in the hydraulic press safety device of this embodiment is arranged between the base 201 of the hydraulic press and the sliding table 202, and by rotating the rotating arm 103 connected to the fixed seat 101, the support column 102 connected to the rotating arm 103 can be rotated to the sliding path of the sliding table 202 or leave the sliding path of the sliding table 202. When the support column 102 rotates to the sliding path of the sliding table 202, since the axial direction of the support column 102 is parallel to the sliding direction of the sliding table 202, after contacting the sliding table 202, it can overcome the elastic force of the main spring 104 and slide along its own axial direction relative to the rotating arm 103, so as to abut between the base 201 of the hydraulic press and the sliding table 202 and form support for the sliding table 202, which can effectively prevent the sliding table 202 from falling. When the hydraulic press is required to work normally, the support column 102 can be rotated away from the sliding path of the sliding table 202 by the rotating arm 103, so that the hydraulic press can be used normally. Here, it should be understood that if the sliding table 202 slides down and the support column 102 plays a role, the support column 102 is stuck by the sliding table 202 and the base 201 and cannot move. At this time, the hydraulic press needs to be started. After the main cylinder of the hydraulic press drives the sliding table 202 to rise to the normal reset position by operating the hydraulic control system, the support column 102 will rise to the initial position under the action of the main spring 104, so that the lower end of the support column 102 is separated from the base 201. At this time, the upper end of the support column 102 and the sliding table 202 also have an initial distance, so the support column 102 can be easily rotated away from the working area of ​​the sliding table 202. Therefore, the hydraulic press safety device provided in this embodiment can well protect the sliding table 202 of the hydraulic press from falling, which is far superior to the prior art.

[0034] In another embodiment of the present application, please refer to Figures 1 to 5 , the rotation axis of the rotating arm 103 is parallel to the supporting column 102. According to the above structure provided in this embodiment, the rotation efficiency of the rotating arm 103 can be improved to the maximum extent, so that the supporting column 102 can be rotated to the sliding path of the sliding worktable 202 or leave the sliding path of the sliding worktable 202 more quickly, and the axis of the supporting column 102 is in vertical contact with the corresponding end surfaces of the base 201 and the sliding worktable 202, thereby ensuring stability during support.

[0035] In another embodiment of the present application, please refer to Figures 1 to 5, the rotating arm 103 extends in a direction perpendicular to its own rotating axis, and the supporting column 102 and the fixing seat 101 are respectively connected to the two ends of the rotating arm 103. According to the above structure provided in this embodiment, the rotating arm 103 can be set to a minimum radius that can meet the rotation requirements of the supporting column 102, that is, when the rotating axis of the rotating arm 103 is parallel to the supporting column 102 and the rotating arm 103 is extended in the above manner, the rotating arm 103 can have a smaller rotating radius, which is conducive to improving the mechanical structural strength of the rotating arm 103 and reducing the production cost of the rotating arm 103.

[0036] In another embodiment of the present application, please refer to Figures 1 to 5 , the fixing seat 101 is connected with a first limiting bolt 105 and a second limiting bolt 106 located on the rotation path of the rotating arm 103. The first limiting bolt 105 and the second limiting bolt 106 are arranged at intervals and enable the rotating arm 103 to rotate within a preset angle range. According to the above structure provided in this embodiment, the first limiting bolt 105 and the second limiting bolt 106 can limit the rotation range of the support column 102, thereby preventing the support column 102 from interfering with other structures of the hydraulic press. In addition, rotation within a smaller range is also conducive to further improving the rotation efficiency of the support column 102. Usually, the position of the first limiting bolt 105 is the farthest position of the sliding path of the rotating arm 103 driving the support column 102 away from the sliding workbench 202, and is also the initial reset position of the rotating arm 103 and the support column 102; the second limiting bolt 106 is the working position of the support column 102 to implement a protective function.

[0037] In another embodiment of the present application, please refer to Figures 1 to 5 A first movable pin 107 close to the first limiting bolt 105 and a second movable pin 108 close to the second limiting bolt 106 are movably mounted on the fixed seat 101, and a pit 109 for partially accommodating the first movable pin 107 or the second movable pin 108 is provided on the rotating arm 103. The hydraulic press safety device also includes a secondary spring 110 connected to the first movable pin 107 and the second movable pin 108. Usually, a receiving cavity is machined on the fixed seat 101 to accommodate the movable pin 108, and the secondary spring 110 is arranged at the bottom of the receiving cavity to elastically support the movable pin 108. When the rotating arm 103 rotates to the position of the first movable pin 107 or the second movable pin 108, the first movable pin 107 or the second movable pin 108 is detachably clamped in the pit 109 through the secondary spring 110.

[0038] According to the above structure provided in the present embodiment, for the convenience of operation, the positions of the first limiting bolt 105 or the second limiting bolt 106 and the first movable pin 107 or the second movable pin 108 are adapted and coordinated with the pit 109. When the rotating arm 103 rotates to the position of the first limiting bolt 105 or the second limiting bolt 106, the corresponding first movable pin 107 or the second movable pin 108 will be inserted into the pit 109 set on the rotating arm 103 under the action of the auxiliary spring 110, which can limit the position of the rotating arm 103 and the supporting column 102 and avoid the rotation of the rotating arm 103, that is, self-locking of the rotating arm 103. When the rotating arm 103 rotates away from the position of the first limiting bolt 105 or the second limiting bolt 106, due to the action of the auxiliary spring 110, the first movable pin 107 or the second movable pin 108 will retract downward in the process of abutting against the edge of the pit 109, thereby ensuring the operability of the rotating arm 103. In this way, when the rotating arm 103 is stuck on the sliding path of the sliding workbench 202, it can form a more stable support for the sliding workbench 202; and when the supporting column 102 is stuck after rotating away from the sliding path of the sliding workbench 202, it can avoid unexpected position changes of the rotating arm 103, which may cause the hidden danger of the supporting column 102 affecting the normal operation of the sliding workbench 202, thereby having a safe use effect.

[0039] In another embodiment of the present application, please refer to Figures 1 to 5 The first movable pin 107 and the second movable pin 108 are spherical at one end close to the rotating arm 103. According to the above structure provided in this embodiment, the first movable pin 107 and the second movable pin 108 are spherical at one end close to the rotating arm 103, which is conducive to the first movable pin 107 and the second movable pin 108 being smoothly inserted into or separated from the pit 109 provided on the rotating arm 103, and is conducive to reducing the difficulty of operating the hydraulic press safety device provided in this embodiment.

[0040] In another embodiment of the present application, please refer to Figures 1 to 5The hydraulic press safety device also includes a position sensor 111 installed on the base 201 and used to detect the position of the rotating arm 103. According to the above structure provided in this embodiment, by setting the position sensor 111, it is possible to accurately detect whether the rotating arm 103 drives the supporting column 102 to be in the initial reset position, thereby avoiding the situation where the hydraulic press is normally started when the supporting column 102 is still located on the sliding path of the sliding workbench 202, which is beneficial to avoid damage to the hydraulic press and to improve the service life of the hydraulic press safety device in this embodiment. It can be understood here that the position sensor 111 is electrically connected to the electronic control system of the hydraulic press. When the rotating arm 103 is not in the initial position, that is, the rotating arm 103 is not in the position defined by the first movable pin 107, the electronic control system of the sliding workbench 202 of the hydraulic press automatically limits the operation of only being able to perform the operation of rising to the reset position, and cannot perform the operation of making the sliding workbench 202 descend.

[0041] In another embodiment of the present application, please refer to Figures 1 to 5 The hydraulic press safety device further comprises a support 112 detachably connected to the base 201, and the position sensor 111 is mounted on the support 112. According to the above structure provided in this embodiment, the position sensor 111 is detachably connected to the base 201 through the support 112, which is beneficial for the position sensor 111 to flexibly adjust the detection position and also beneficial for the daily maintenance of the position sensor 111.

[0042] In another embodiment of the present application, please refer to Figures 1 to 5 , a fixing sleeve 113 is provided on the support column 102, and the main spring 104 abuts between the fixing sleeve 113 and the rotating arm 103. According to the above structure provided in the embodiment, by providing the fixing sleeve 113 on the support column 102, it is beneficial to make the main spring 104 abut between the support column 102 and the rotating arm 103 more stably, provide power for the automatic reset of the support column 102, and simplify the structure of the support column 102, which is beneficial to ensure that the hydraulic press safety device provided in this embodiment can operate stably for a long time.

[0043] In another embodiment of the present application, please refer to Figures 1 to 5 , the fixing seat 101 is arranged close to the edge of the base 201. According to the above structure provided in this embodiment, the fixing seat 101 is arranged at the edge of the base 201, which can shorten the arm length of the rotating arm 103, which is conducive to the support column 102 to be more conveniently rotated to the sliding path of the sliding workbench 202 or leave the sliding path of the sliding workbench 202, which is conducive to further improving the rotation efficiency of the support column 102, and at the same time, it can reduce the occupation of the base 201 area, and ensure the effective use area of ​​the base 201.

[0044] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulic press safety device, characterized in that: include: A fixed seat (101) is arranged between a base (201) of the hydraulic press and a sliding workbench (202) and is fixed on the base (201); A support column (102) is rotatably mounted on the fixed seat (101) via a rotating arm (103); the support column (102) is driven by the rotating arm (103) to rotate and rotate onto a sliding path of the sliding worktable (202) or to leave the sliding path of the sliding worktable (202); the support column (102) also penetrates the rotating arm (103) and is capable of moving along its own axial direction relative to the rotating arm (103); the axial direction of the support column (102) is parallel to the sliding direction of the sliding worktable (202); The main spring (104) has two ends along its own elastic deformation direction respectively abutting against the support column (102) and the rotating arm (103) and allowing an initial interval of a set distance to exist between the support column (102) and the base (201).

2. The hydraulic press safety device according to claim 1, characterized in that: The rotation axis of the rotating arm (103) is parallel to the supporting column (102).

3. The hydraulic press safety device according to claim 2, characterized in that: The rotating arm (103) extends in a direction perpendicular to its own rotating axis, and the supporting column (102) and the fixing seat (101) are respectively connected to two ends of the rotating arm (103).

4. The hydraulic press safety device according to claim 1, characterized in that: The fixing seat (101) is connected to a first limiting bolt (105) and a second limiting bolt (106) located on a rotation path of the rotating arm (103); the first limiting bolt (105) and the second limiting bolt (106) are arranged at intervals and enable the rotating arm (103) to rotate within a preset angle range.

5. The hydraulic press safety device according to claim 4, characterized in that: A first movable pin (107) close to the first limiting bolt (105) and a second movable pin (108) close to the second limiting bolt (106) are movably mounted on the fixing seat (101), and a recess (109) for partially accommodating the first movable pin (107) or the second movable pin (108) is provided on the rotating arm (103); The hydraulic press safety device further comprises a secondary spring (110) connected to the first movable pin (107) and the second movable pin (108); when the rotating arm (103) rotates to the position of the first movable pin (107) or the second movable pin (108), the first movable pin (107) or the second movable pin (108) is detachably engaged with the recess (109) via the secondary spring (110).

6. The hydraulic press safety device according to claim 5, characterized in that: The first movable pin (107) and the second movable pin (108) are configured to be spherical at one end close to the rotating arm (103).

7. The hydraulic press safety device according to claim 4, characterized in that: The hydraulic press safety device further comprises a position sensor (111) mounted on the base (201) and used for detecting the position of the rotating arm (103).

8. The hydraulic press safety device according to claim 7, characterized in that: The hydraulic press safety device further comprises a support (112) detachably connected to the base (201), and the position sensor (111) is mounted on the support (112).

9. The hydraulic press safety device according to claim 1, characterized in that: The support column (102) is provided with a fixing sleeve (113); The main spring (104) abuts between the fixing sleeve (113) and the rotating arm (103).

10. The hydraulic press safety device according to claim 1, characterized in that: The fixing seat (101) is arranged close to the edge of the base (201).

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