阅读说明：本技术 一种带机械锁定装置的冲压床 (Punching machine with mechanical locking device ) 是由 赵文兵 王翔 于 2019-10-23 设计创作，主要内容包括：本发明公开了一种带机械锁定装置的冲压床：包括工作台、机顶、压板及连接于机顶的自动锁死机构、手动锁死机构,工作台与机顶之间通过立柱连接,工作台与机顶之间还设有竖直设置的若干导柱,压板可上下滑动连接于导柱,且通过升降油缸连接于机顶；机顶上端设有锁死齿条,锁死齿条的侧部设有棘齿一、棘齿二,自动锁死机构包括锁死油缸及用于连接棘齿二的勾头一,锁死油缸的活塞杆连接于勾头一,锁死油缸的无杆腔设有用于驱动锁死油缸伸出的弹簧,锁死油缸的有杆腔导通于升降油缸的有杆腔；手动锁死机构包括手动装置及用于连接勾头二的棘齿一,手动装置用于驱动勾头二与棘齿一分离或结合。本发明能够有效避免压板意外跌落,提升设备的安全性能。(The invention discloses a punching machine with a mechanical locking device, which comprises: the automatic locking mechanism and the manual locking mechanism are connected with the machine top, the workbench is connected with the machine top through an upright post, a plurality of guide posts are vertically arranged between the workbench and the machine top, and the pressing plate can be connected with the guide posts in a vertical sliding mode and is connected with the machine top through a lifting oil cylinder; the upper end of the machine top is provided with a locking rack, the side part of the locking rack is provided with a first ratchet and a second ratchet, the automatic locking mechanism comprises a locking oil cylinder and a first hook for connecting the second ratchet, a piston rod of the locking oil cylinder is connected with the first hook, a rodless cavity of the locking oil cylinder is provided with a spring for driving the locking oil cylinder to extend out, and a rod cavity of the locking oil cylinder is communicated with a rod cavity of the lifting oil cylinder; the manual locking mechanism comprises a manual device and a first ratchet which is used for connecting the second hook head, and the manual device is used for driving the second hook head to be separated from or combined with the first ratchet. The invention can effectively avoid the accidental falling of the pressure plate and improve the safety performance of the equipment.)

1. The utility model provides a take mechanical locking device's punching press bed which characterized in that: the automatic locking device comprises a workbench (1), a machine top (3), a pressing plate (4), an automatic locking mechanism (8) and a manual locking mechanism (9), wherein the automatic locking mechanism and the manual locking mechanism are connected to the machine top (3), the workbench (1) and the machine top (3) are connected through an upright post (2), a plurality of guide pillars (5) are vertically arranged between the workbench (1) and the machine top (3), and the pressing plate (4) can be connected to the guide pillars (5) in a vertical sliding mode and is connected to the machine top (3) through a lifting oil cylinder (31);

the automatic locking mechanism comprises a locking rack (7), a first ratchet (71) and a second ratchet (72) are arranged on the side portion of the locking rack (7), the automatic locking mechanism (8) comprises a locking oil cylinder (82) and a first hook (81) used for being connected with the second ratchet (72), a piston rod of the locking oil cylinder (82) is connected to the first hook (81), a spring used for driving the locking oil cylinder (82) to extend out is arranged in a rodless cavity of the locking oil cylinder (82), and a rod cavity of the locking oil cylinder (82) is communicated with a rod cavity of the lifting oil cylinder (31);

the manual locking mechanism (9) comprises a manual device and a first ratchet (71) which is used for connecting the second hook head (91), and the manual device is used for driving the second hook head (91) to be separated from or combined with the first ratchet (71).

2. A press machine with mechanical locking device according to claim 1, characterized in that: the manual device comprises a sliding sleeve (92) and a locking rod (93) which is slidably connected to the sliding sleeve (92), wherein a spring used for driving the locking rod (93) to move towards the second hook head (91) is arranged between the locking rod (93) and the sliding sleeve (92).

3. A press machine with mechanical locking device according to claim 2, characterized in that: the tip of dead lock pole (93) is equipped with manipulation horizontal pole (931), the tip of sliding sleeve (92) is equipped with two boss (921) that the symmetry set up, when eave tile two (91) and ratchet (71) separation, handle horizontal pole (931) and connect boss (921).

4. A press machine with mechanical locking device according to claim 3, characterized in that: the boss (921) is provided with an arc groove for connecting the operating cross rod (931).

5. A press machine with mechanical locking device according to claim 1, characterized in that: still include balanced axle (6), balanced axle (6) are connected in clamp plate (4) through two at least supports (41), the both ends of balanced axle (6) all are equipped with balanced tooth (61), the lateral part of stand (2) is equipped with and is used for meshing rack (21) in balanced tooth (61), vertical setting.

6. A press machine with mechanical locking device according to claim 5, characterized in that: and a coupling (62) is also arranged between the balance shafts (6).

7. A press machine with mechanical locking device according to claim 1, characterized in that: the upper end of the first hook head (81) is hinged to the top (3).

8. A press machine with mechanical locking device according to claim 1, characterized in that: the upper end of the second hook head (91) is hinged to the machine top (3).

9. A press machine with mechanical locking device according to claim 1, characterized in that: the top (3) is also provided with a through hole (33) for passing through the locking rack (7).

10. A press machine with mechanical locking device according to claim 1, characterized in that: the first ratchet (71) and the second ratchet (72) are arranged oppositely.

Technical Field

The invention relates to the technical field of punching machines, in particular to a punching machine with a mechanical locking device.

Background

The punching machine is used for punching products, and for the punching machine with large volume, because the pressing plate of the punching machine is large in volume and heavy in weight, when the pressing plate falls suddenly from a lifting state, the generated impact force can damage a die and even injure an operator.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides a punching machine with a mechanical locking device, and solves the technical problem that the punching machine in the prior art is low in safety washing.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a take mechanical locking device's punching press bed which characterized in that: the automatic locking mechanism and the manual locking mechanism are connected with the machine top, the workbench is connected with the machine top through an upright post, a plurality of guide posts are vertically arranged between the workbench and the machine top, and the pressing plate can be connected with the guide posts in a vertical sliding mode and is connected with the machine top through a lifting oil cylinder;

the upper end of the machine top is provided with a locking rack, the side part of the locking rack is provided with a first ratchet and a second ratchet, the automatic locking mechanism comprises a locking oil cylinder and a first hook for connecting the second ratchet, a piston rod of the locking oil cylinder is connected with the first hook, a rodless cavity of the locking oil cylinder is provided with a spring for driving the locking oil cylinder to extend out, and a rod cavity of the locking oil cylinder is communicated with a rod cavity of the lifting oil cylinder;

the manual locking mechanism comprises a manual device and a first ratchet which is used for connecting the second hook head, and the manual device is used for driving the second hook head to be separated from or combined with the first ratchet.

Preferably, the punching machine with the mechanical locking device is characterized in that: the manual device comprises a sliding sleeve and a locking rod which is connected with the sliding sleeve in a sliding mode, and a spring used for driving the locking rod to move towards the hook head II is arranged between the locking rod and the sliding sleeve.

Preferably, the punching machine with the mechanical locking device is characterized in that: the end part of the locking rod is provided with an operating transverse rod, the end part of the sliding sleeve is provided with two bosses which are symmetrically arranged, and when the hook head II is separated from the ratchet I, the operating transverse rod is connected with the bosses.

Preferably, the punching machine with the mechanical locking device is characterized in that: the boss is provided with an arc groove for connecting the operating cross rod.

Preferably, the punching machine with the mechanical locking device is characterized in that: still include the balance shaft, the balance shaft is connected in the clamp plate through two at least supports, and the both ends of balance shaft all are equipped with balanced tooth, and the lateral part of stand is equipped with the rack that is used for meshing in balanced tooth, vertical setting.

Preferably, the punching machine with the mechanical locking device is characterized in that: a coupling is also arranged between the balance shafts.

Preferably, the punching machine with the mechanical locking device is characterized in that: the upper end of the first hook is hinged to the top of the machine.

Preferably, the punching machine with the mechanical locking device is characterized in that: the upper end of the hook head II is hinged to the machine top.

Preferably, the punching machine with the mechanical locking device is characterized in that: the top of the machine is also provided with a through hole for penetrating the locking rack.

Preferably, the punching machine with the mechanical locking device is characterized in that: the first ratchet and the second ratchet are oppositely arranged. The invention achieves the following beneficial effects:

compared with the prior art, the double-locking mechanism provided by the invention has the advantages that the double-locking mechanism of the automatic locking mechanism and the manual locking mechanism is provided, the double locking of the locking rack can be realized, the pressing plate is prevented from falling accidentally, and the safety performance of the equipment is improved. The manual locking mechanism is suitable for being used during equipment maintenance and die replacement; the automatic locking mechanism can work during normal work and maintenance of the equipment.

The balance shaft can ensure that two ends of the pressing plate are always in a state of equal height, so that the pressing plate is prevented from inclining, and meanwhile, the locking rack can be ensured to accurately enter the through hole.

Drawings

FIG. 1 is a front view of the overall construction of the present invention;

FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;

FIG. 3 is an end view (steering rail attachment end) of the sliding sleeve of the present invention;

the meaning of the reference numerals: 1-a workbench; 2-upright post; 3-machine top; 4, pressing a plate; 5-guide pillar; 6-a balance shaft; 7-locking the rack; 8-automatic locking mechanism; 9-a manual locking mechanism; 21-a rack; 31-a lift cylinder; 33-a via hole; 41-support; 61-balance teeth; 62-a coupler; 71-ratchet one; 72-ratchet two; 81-hook head one; 82-locking the oil cylinder; 91-hook head two; 92-a sliding sleeve; 93-a deadlocking lever; 94-locking spring; 921-boss; 931-operating the crossbar.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and 2: the embodiment discloses a punching machine with a mechanical locking device: including workstation 1, roof 3, clamp plate 4 and connect in the dead mechanism of automatic locking 8 of roof 3, the dead mechanism of manual locking 9, be connected through stand 2 between workstation 1 and the roof 3, still be equipped with a plurality of guide pillars 5 of vertical setting between workstation 1 and the roof 3, slide connection about clamp plate 4 can be in guide pillar 5, and connect in roof 3 through lift cylinder 31. The lifting oil cylinder 31 is used for realizing the extrusion of the pressure plate 4 and the workbench, and when the pressure plate 4 is contracted, the pressure plate 4 is lifted.

The upper end of the top 3 is provided with a locking rack 7, and the side part of the locking rack 7 is provided with a first ratchet 71 and a second ratchet 72. And the first ratchet 71 and the second ratchet 72 are preferably arranged oppositely, so that the layout of the automatic locking mechanism 8 and the manual locking mechanism 9 is facilitated.

The automatic locking mechanism 8 of the embodiment includes a locking cylinder 82 and a hook head 81 for connecting the ratchet tooth two 72, a piston rod of the locking cylinder 82 is connected to the hook head 81, a rodless cavity of the locking cylinder 82 is provided with a spring for driving the locking cylinder 82 to extend out, and a rod cavity of the locking cylinder 82 is communicated with a rod cavity of the lift cylinder 31.

That is to say: under the normal state (including shutdown, hydraulic failure and the like), the locking oil cylinder 82 always has outward thrust under the action of the spring, the thrust enables the hook head I81 to hook the ratchet II 72 to avoid falling of the pressing plate 4, but when the pressing plate 4 needs to be operated to descend, the lifting oil cylinder 31 needs to extend (namely, oil is filled into a rod cavity of the lifting oil cylinder 31), and then the rod cavity of the locking oil cylinder 82 is communicated with the rod cavity of the lifting oil cylinder 31, so the oil can retract the locking oil cylinder 82 at the moment, and the hook head I81 is separated from the hook ratchet II 72.

The manual locking mechanism 9 of the present embodiment includes a manual device and a first ratchet 71 for connecting the second hook 91, and the manual device is used for driving the second hook 91 to separate from or combine with the first ratchet 71. The concrete structure is as follows: the manual device comprises a sliding sleeve 92 and a locking rod 93 slidably connected to the sliding sleeve 92, and a spring for driving the locking rod 93 to move towards the hook head two 91 is arranged between the locking rod 93 and the sliding sleeve 92.

The end of the locking rod 93 is provided with an operating cross bar 931, as shown in fig. 2 and 3: the end of the sliding sleeve 92 is provided with two bosses 921 which are symmetrically arranged, the difference between the two bosses 921 is 180 degrees, and a hollow groove is further formed between the two bosses 921, when the hook head two 91 is separated from the ratchet tooth one 71 (the locking rod 93 moves leftwards in the view of fig. 2), the operating cross bar 931 is connected with the bosses 921; when the hook heads two 91 are combined with the ratchet teeth one 71, the operation cross bar 931 is positioned in the empty slot between the two bosses 921.

In order to prevent the manipulation lever 931 from slipping off the boss 921, the boss 921 of the present embodiment is further provided with circular arc grooves (grid areas in fig. 3) for connecting the manipulation lever 931.

In order to guarantee that whole clamp plate 4 is in the horizontality all the time, avoid the error of lift cylinder 31 (including the oil circuit of controlling its motion) motion to cause the influence to the horizontality of clamp plate 4, this embodiment still includes balanced axle 6, and balanced axle 6 is connected in clamp plate 4 through two at least supports 41, and the both ends of balanced axle 6 all are equipped with balanced tooth 61, and the lateral part of stand 2 is equipped with and is used for meshing in balanced tooth 61, vertical setting's rack 21. The balance shaft 6 and the balance teeth 61 are usually connected by a key, and the key connection makes the relative heights of the two ends possibly deviate when the balance teeth 61 at the two ends are meshed with the rack 21, that is, when the balance teeth 61 are meshed with the rack 21, the two ends of the pressure plate 4 are not equal in height, in order to overcome the defect, the embodiment preferably further arranges a coupler 62 between the balance shafts 6, and the coupler 62 divides the balance shaft 6 into two sections, so that the angle between the two balance teeth 61 can be adjusted arbitrarily.

The upper end of the hook head I81 is hinged to the machine top 3, and the upper end of the hook head II 91 is also preferably hinged to the machine top 3, so that the hinged mode is favorable for improving the bearing capacity of the two hook heads.

The length of the dead lock rack 7 should be at least greater than the stroke range of the pressure plate 4, so the length is longer, and in order to avoid the interference of the top 3 on the dead lock rack 7, the top 3 of the embodiment is further provided with a through hole 33 for penetrating through the dead lock rack 7.

When the manual locking mechanism 9 is used, in normal work, the operating cross rod 931 is pulled by a hand to rotate 90 degrees, so that the operating cross rod enters the inner part of the arc groove in the boss 921, at the moment, under the pulling of the locking rod 93, the second hook head 91 is separated from the first ratchet 71, and the manual locking mechanism 9 is in an unlocking state. When the pressing plate 4 needs to descend, oil pressure firstly enters a rod cavity of the locking oil cylinder 82, the locking oil cylinder 82 retracts, the first hook 81 is pulled, the automatic locking mechanism 8 is unlocked, and due to the fact that the locking oil cylinder 82 is communicated with the lifting oil cylinder 31, when the lifting oil cylinder 31 works, the locking oil cylinder 82 can also perform corresponding linkage. In practical application, the action between the two oil cylinders can have a certain time difference by installing a delay relay according to practical conditions, for example, the lifting oil cylinder 31 can act again after several seconds of the action of the locking oil cylinder 82.

Since the dead-lock cylinder 82 in the auto-lock mechanism 8 requires oil pressure to unlock, the auto-lock mechanism 8 does not work when the platen 4 descends, but the auto-lock mechanism 8 can work when the platen 4 ascends. When the hydraulic pressure suddenly fails, the locking cylinder 82 can still eject and drive the first hook 81 under the action of the spring.

Compared with the prior art, the double-locking mechanism provided by the invention has the advantages that the double-locking mechanism of the automatic locking mechanism 8 and the manual locking mechanism 9 is provided, the double-locking of the locking rack 7 can be realized, and the pressing plate 4 is prevented from falling off accidentally. The manual locking mechanism 9 is suitable for being used during equipment maintenance and die replacement; the automatic locking mechanism 8 can work during normal work and maintenance of the equipment.

The balance shaft 6 can ensure that two ends of the pressing plate 4 are always in the equal-height state, so that the pressing plate 4 is prevented from inclining, and meanwhile, the locking rack 7 can be ensured to accurately enter the through hole 33.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.