CN213674448U

CN213674448U - Safety cylinder induction structure of punching die frame

Info

Publication number: CN213674448U
Application number: CN202022607124.XU
Authority: CN
Inventors: 霍锦充
Original assignee: Dongguan Wkk Machinery Co ltd
Current assignee: Dongguan Wkk Machinery Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-13
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a safety cylinder response structure of die carrier punches a hole, including cope match-plate pattern and lower bolster, support with guide pillar device, hydraulic means between this cope match-plate pattern and the lower bolster. The hydraulic device is provided with a bearing platform, a stroke allowing an upper die to punch downwards is formed between the bearing platform and the upper die plate, a safety protection device is arranged beside the side of the bearing platform, and a safety sensor is additionally arranged on the safety protection device and used for sensing the extending and retracting states of the cushion block. When the cushion block is pulled back by the safety cylinder and is close to the safety sensor, the same high level signal is output, the control system allows the upper template to punch downwards after receiving the high level signal, otherwise, the upper template is not allowed to move downwards, the safety of the die can be guaranteed, and the die stamping knife cannot be damaged due to misoperation.

Description

Safety cylinder induction structure of punching die frame

Technical Field

The utility model belongs to the technical field of the piercing press technique and specifically relates to indicate a die carrier's that punches a hole safty cylinder response structure.

Background

The structure of the PCB inner-layer plate punching machine mainly comprises: pre-alignment workbench → inner layer plate conveying → OPE punching mechanism → plate discharging conveyor belt. The board is at counterpoint workstation in advance, according to the size of the board that the customer dashes, remove correct position through manual or automatic adjustment workstation CCD camera and snatch board target position and carry out the thick back of counterpointing, adsorb the interior flange edge precision through linear motor and vacuum chuck and send into the machine in the mould position of punching a hole, the lower module has contained all sizes that will use usually, the die holder includes the reference target of the mould of a plurality of not unidimensional and machine, the upper die base is that the mould of single position can be according to the size of the board that dashes and move to correct position through manual fast, then pin the mould through a very accurate locating pin, the precision of the position of punching a hole of assurance machine is guaranteed to the accurate positioning of mould. Because the customer need produce the working plate of different sizes, so need not adjust the position of towards the needle mould in the production process, if uncertain factors such as computer outage or software crash flash retreat in this process, the manual misoperation closes the software or presses scram button, and system interlock disconnection all can lead to the hydraulic pump to close, not only probably makes mould and towards the needle damage like this, is a serious hidden danger to staff's personal safety especially.

Based on this, the company developed a safety device for a mold of a PCB inner layer board punching machine, which is disclosed in patent application No. 201820822842.9, and the purpose of locking the mold was achieved by using the safety device. However, the state of whether the cushion block of the safety protection device extends or retracts is not monitored, and when the cushion block is not completely retracted, if the upper template directly downwards rushes, the possibility of damaging the die by impact is caused.

Disclosure of Invention

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a safety cylinder response structure of die carrier punches a hole, and it has ensured the security that the mould used to overcome prior art's not enough.

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

a safe cylinder induction structure of a punching die carrier comprises an upper template and a lower template which are supported by a guide post device and a hydraulic device,

the hydraulic device is provided with a bearing platform, a stroke allowing an upper die to punch downwards is formed between the bearing platform and an upper die plate, a cushion block, a safety cylinder and a safety sensor are arranged beside the side of the bearing platform, the safety cylinder is connected with the cushion block and used for driving the cushion block to stretch out, the cushion block is borne in a space on the bearing platform and released when the cushion block is retracted, and the safety sensor is used for sensing the stretching-out and retracting states of the cushion block.

Preferably, the cushion block is used as a sliding block and is mounted on a sliding seat with a sliding groove, the sliding seat is fixed on the bottom surface of the upper template, the safety sensor is mounted on the sliding seat, and the probe direction of the safety sensor faces the cushion block to sense the expansion and contraction of the cushion block.

As a preferred scheme, the safety cylinder is fixed on the bottom surface of the upper template and is connected with the cushion block through a piston rod.

As a preferable scheme, the hydraulic device is composed of a hydraulic stay bar and a hydraulic guide sleeve, the hydraulic guide sleeve is fixed on the lower template, the hydraulic stay bar is inserted into the hydraulic guide sleeve, one end of the hydraulic stay bar is fixed on the upper template, the other end of the hydraulic stay bar is connected with a hydraulic cylinder, the hydraulic cylinder is fixed at the bottom of the lower template, and the hydraulic stay bar is driven by the hydraulic cylinder to form a structure that the upper template moves relative to the lower template.

As a preferred scheme, the guide post device comprises an upper guide post and a lower guide sleeve, the upper guide post is fixed on the upper template, the lower guide sleeve is fixed on the lower template, and the upper guide post is inserted into the lower guide sleeve to form a guide structure capable of sliding up and down.

As a preferred scheme, the cushion blocks, the safety cylinders and the safety sensors form a safety protection device, and the safety protection device, the guide pillar device and the hydraulic device are provided with 4 groups and distributed at four corners of the upper template and the lower template.

Preferably, the safety sensor is a metal proximity switch.

Preferably, the safety sensor is connected to the control system, and the system allows the upper die plate to punch downwards when the cushion block retraction is sensed.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme, through increased the safety inductor on original safety arrangement's basis. When the cushion block is pulled back by the safety cylinder and is close to the safety sensor, the same high level signal is output, the control system allows the upper template to punch downwards after receiving the high level signal of the safety sensor, otherwise, the upper template is not allowed to move downwards, the safety of the die can be guaranteed, and the die stamping knife cannot be damaged due to misoperation.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a first perspective view of an embodiment of the present invention.

Fig. 2 is a second perspective view of the embodiment of the present invention.

Fig. 3 is an exploded view of an embodiment of the present invention.

Fig. 4 is a cross-sectional view of an embodiment of the invention.

Figure 5 is a schematic view of the embodiment of the present invention with the pad extended and supported on the support platform.

Figure 6 is a schematic view of an embodiment of the invention showing the release of the support platform when the pods are retracted.

The attached drawings indicate the following:

10. an upper template 20 and a lower template

30. Guide post device 31, upper guide post

32. Lower guide sleeve 40 and hydraulic device

41. Hydraulic stay 42, hydraulic guide bush

43. Hydraulic cylinder 44, holding platform

50. Safety protection device 51, cushion block

52. Safety cylinder 53 and safety sensor

54. A slide carriage.

Detailed Description

Referring to fig. 1 to 6, which show a specific structure of a preferred embodiment of the present invention, the structure is a safety cylinder sensing structure of a punching die set, and includes an upper die plate 10 and a lower die plate 20, and the upper die plate 10 and the lower die plate 20 are supported by a guide pillar device 30 and a hydraulic device 40. After the circuit board to be punched enters the XYY adjusting platform, the upper die plate 10 moves downwards, and the circuit board is punched by the punching knife.

The hydraulic device 40 is used for driving the upper template 10 to move up and down relative to the lower template 20. Is composed of a hydraulic stay 41, a hydraulic guide 42 and a hydraulic cylinder 43. The hydraulic guide sleeve 42 is fixed on the lower template 20, the hydraulic support rod 41 is inserted into the hydraulic guide sleeve 42, one end of the hydraulic support rod 41 is fixed on the upper template 10, the other end is connected with the hydraulic cylinder 43, the hydraulic cylinder 43 is fixed at the bottom of the lower template 20, and the hydraulic support rod 41 is driven by the hydraulic cylinder 43 to form a structure that the upper template 10 moves relative to the lower template 20.

The guide post device 30 plays a guiding role, so that the downward stroke of the upper die plate 10 is along the direction limited by the guide post device 30, and the guide post device 30 also makes the up-and-down movement of the upper die plate 10 smoother. The structure of the guide structure comprises an upper guide pillar 31 and a lower guide sleeve 32, wherein the upper guide pillar 31 is fixed on the upper template 10, the lower guide sleeve 32 is fixed on the lower template 20, and the upper guide pillar 31 is inserted into the lower guide sleeve 32 to form a guide structure capable of sliding up and down. In this embodiment, the safety cylinder 52 is fixed to the bottom surface of the upper mold plate 10, and is connected to the pad 51 through a piston rod.

As shown in fig. 4 to 6, the hydraulic guide 42 of the hydraulic device 40 is spaced from the upper die plate 10, and the hydraulic guide 42 has a support platform 44, and a stroke allowing the upper die to punch downward is formed between the support platform 44 and the upper die plate 10. The safety protection device 50 is arranged beside the supporting platform 44 and is composed of a cushion block 51, a safety cylinder 52 and a safety inductor 53. The side of this supporting platform 44 sets up cushion 51, safety cylinder 52 and safety inductor 53, and this safety cylinder 52 connects cushion 51 and bears when this cushion 51 stretches out in with the drive supporting platform 44, releases the space on the supporting platform 44 during the withdrawal, and this safety inductor 53 is used for responding to this cushion 51's the state of stretching out and withdrawing.

The pad 51 is installed as a slider on a sliding base 54 having a sliding groove, the sliding base 54 is fixed on the bottom surface of the upper mold plate 10, the safety sensor 53 is installed on the sliding base 54, and the probe direction of the safety sensor 53 faces the pad 51 to sense the extension and contraction of the pad 51.

As one of the solutions, the safety sensor 53 is a metal proximity switch. When the pad 51 is retracted by the safety cylinder 52 to be close to the safety sensor 53, the same high level signal is inputted. The safety sensor 53 is connected with the control system, when a high-level signal generated when the cushion block 51 retracts is sensed, the system allows the upper template 10 to punch a hole downwards, otherwise, the upper template 10 is not allowed to move downwards, so that the safety of the die can be guaranteed, and the die stamping knife cannot be damaged due to misoperation.

The safety protection device 50 is arranged in the following sense: when the punching machine is stopped, the hydraulic cylinder 43 is not operated, and in order to avoid the upper die plate 10 from directly falling to damage the punching knife, the extended cushion block 51 is used for being cushioned on the supporting platform 44, so that the punching knife of the die is not contacted with other devices on the machine all the time, and the upper die plate 10 and the punching knife arranged in the upper die plate 10 are protected. After the punching machine is started, the pad 51 needs to be retracted to release the punching space on the supporting platform 44, in order to ensure that the pad 51 is retracted without error, a safety sensor 53 is added, and after the safety sensor 53 detects that the pad 51 is retracted, a trigger signal is given to a control system, and the control system can control the upper template 10 to move downwards so as to punch a hole.

In this embodiment, the safety protection device 50, the guide pillar device 30, and the hydraulic device 40 have 4 sets, and are distributed at four corners of the upper mold plate 10 and the lower mold plate 20. All devices act synchronously, so that the synchronization and balance of the punching of the upper template 10 are guaranteed.

The working principle of the utility model is as follows:

during the punching operation, the system controls the retraction of the pad 51 from the support platform 44. The hydraulic cylinder 43 is arranged on the bottom surface of the lower template 20 and is coaxially connected with the hydraulic stay bar 41; the hydraulic stay bar 41 is started through the hydraulic cylinder 43, the hydraulic stay bar 41 moves up and down in the hydraulic guide sleeve 42 to drive the hydraulic device 40 and the guide post device 30 to move up and down, and therefore the punching action of the whole punching device is achieved.

After the machine is stopped, the software control cushion block 51 extends out to be clamped on the supporting platform 44 and supports the upper template 10 to prevent the upper template from descending, so that the upper and lower templates are prevented from being damaged, and personal safety is not endangered.

In particular, a safety sensor 53 is added to the safety protection device 50. When the cushion block 51 is retracted by the safety cylinder 52 and approaches the safety sensor 53, the same high level signal is output, the control system allows the upper die plate 10 to punch a hole downwards after receiving the high level signal of the safety sensor 53, otherwise, the upper die plate 10 is not allowed to move downwards, so that the safety of the die can be guaranteed, and the die stamping knife cannot be damaged due to misoperation.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a safety cylinder response structure of die carrier punches a hole, includes cope match-plate pattern (10) and lower bolster (20), supports its characterized in that with guide pillar device (30), hydraulic means (40) between this cope match-plate pattern and the lower bolster:

have bearing platform (44) on hydraulic means (40), form the stroke distance that allows to go up the mould and punch a hole downwards between this bearing platform (44) and cope match-plate pattern (10), the side of this bearing platform (44) sets up cushion (51), safety cylinder (52) and safety inductor (53), bears when this safety cylinder (52) connection cushion (51) stretches out with this cushion of drive (51) in bearing platform (44), space on releasing bearing platform (44) during the withdrawal, this safety inductor (53) are used for responding to stretching out and the withdrawal state of this cushion (51).

2. The safety cylinder induction structure of the punching die frame as claimed in claim 1, characterized in that: the cushion block (51) is used as a sliding block and is arranged on a sliding seat (54) with a sliding groove, the sliding seat is fixed on the bottom surface of the upper template (10), the safety sensor (53) is arranged on the sliding seat, and the probe direction of the safety sensor (53) faces the cushion block (51) to sense the expansion and contraction of the cushion block (51).

3. The safety cylinder induction structure of the punching die frame as claimed in claim 1, characterized in that: the safety cylinder (52) is fixed on the bottom surface of the upper template (10) and is connected with the cushion block (51) through a piston rod.

4. The safety cylinder induction structure of the punching die frame as claimed in claim 1, characterized in that: the hydraulic device (40) is composed of a hydraulic support rod (41) and a hydraulic guide sleeve (42), the hydraulic guide sleeve (42) is fixed on the lower template (20), the hydraulic support rod (41) is inserted into the hydraulic guide sleeve (42), one end of the hydraulic support rod (41) is fixed on the upper template (10), the other end of the hydraulic support rod is connected with a hydraulic cylinder (43), the hydraulic cylinder (43) is fixed at the bottom of the lower template (20), and the hydraulic support rod (41) is driven by the hydraulic cylinder (43) to form a structure that the upper template (10) moves relative to the lower template (20).

5. The safety cylinder induction structure of the punching die frame as claimed in claim 1, characterized in that: the guide post device (30) comprises an upper guide post (31) and a lower guide sleeve (32), the upper guide post (31) is fixed on the upper template (10), the lower guide sleeve (32) is fixed on the lower template (20), and the upper guide post (31) is inserted into the lower guide sleeve (32) to form a guide structure capable of sliding up and down.

6. The safety cylinder induction structure of the punching die frame as claimed in claim 1, characterized in that: the cushion block (51), the safety cylinder (52) and the safety sensor (53) form a safety protection device (50), and 4 groups of the safety protection device (50), the guide pillar device (30) and the hydraulic device (40) are distributed at four corners of the upper template (10) and the lower template (20).

7. The safety cylinder induction structure of the punching die frame as claimed in claim 1, characterized in that: the safety sensor (53) is a metal proximity switch.

8. The safety cylinder induction structure of the punching die frame as claimed in claim 1, characterized in that: the safety sensor (53) is connected with a control system, and when the cushion block (51) is sensed to be retracted, the system allows the upper template (10) to punch downwards.