CN211489231U

CN211489231U - Portable electric punching machine

Info

Publication number: CN211489231U
Application number: CN202020020276.7U
Authority: CN
Inventors: 黄晓苗; 吕笑飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-15
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a portable electric punching machine, which aims to overcome the single operation mode in the prior art, the problem of inconvenience is solved, the oil cylinder comprises a cylinder body, a first piston is arranged in the cylinder body in a sliding mode, an upper stamping die is fixedly arranged at the outer end of the first piston, a lower stamping die is fixedly arranged on the cylinder body, the first piston divides the interior of the cylinder body into a first cavity and a second cavity, a second piston is arranged in the second cavity in a sliding mode, the second piston slides, the volume of the second cavity is increased or reduced, a casing is fixedly arranged on the cylinder body, a motor is fixedly arranged in the casing, an eccentric wheel is fixedly arranged on the output end of the motor and keeps abutting against the eccentric wheel, the eccentric wheel can drive the second piston to slide, a control module is further arranged in the casing, a handle portion is fixedly arranged on the casing, a hand-held switch is arranged on the handle portion, and the control module.

Description

Portable electric punching machine

Technical Field

The utility model belongs to an electric tool, in particular to a portable electric punching machine.

Background

The electric punching machine is a device for punching holes on a drill bit by using gravity, is mainly used for processing sheet metal, and has the advantages of high punching speed, accurate positioning and suitability for large-batch punching.

The chinese patent publication No. CN106424310A discloses a portable electric punching machine, which comprises a housing, a driving assembly, an eccentric shaft, an oil cylinder, a hydraulic pump, a push shaft, an upper punch die, a lower punch die and an oil return assembly. The driving assembly is arranged in the shell, the eccentric shaft is connected with the driving assembly, the hydraulic pump comprises a plurality of piston assemblies arranged along the circumferential direction of the eccentric shaft, the eccentric shaft rotates to drive the plurality of piston assemblies to move along the direction perpendicular to the axis of the eccentric shaft, oil in the oil cylinder is extruded into an oil cavity of the hydraulic pump, the push shaft is arranged in the shell and is connected with the oil cavity of the hydraulic pump, and the push shaft moves towards the direction of the lower die after oil is fed into the oil cavity. The upper punch die is connected with the push shaft. The lower punch die and the upper punch die are arranged on the shell in an opposite mode. The portable power punch also includes a hand-held portion connected to the housing, the hand-held portion having a switch connected to the drive assembly.

However, the prior art is not perfect, the hand-held portable electric punching machine is usually provided with a switch only on the hand-held part, and under some operating environments, such as the operating environment that the portable electric punching machine is installed on a workbench, the problem that the user controls the motor through the switch on the hand-held part has a single operating mode and is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects and problems in the prior art, the utility model provides a portable electric punching machine which can be controlled manually and also can be controlled by feet and is convenient to operate.

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

a portable electric punching machine comprises an oil cylinder, wherein the oil cylinder comprises a cylinder body, a first piston is arranged in the cylinder body in a sliding manner, an upper punching die is fixedly arranged at the outer end of the first piston, a lower punching die corresponding to the upper punching die is fixedly arranged on the cylinder body, the first piston can drive the upper punching die to be close to or far away from the lower punching die, the first piston divides the interior of the cylinder body into a first cavity and a second cavity, a second piston is arranged in the second cavity in a sliding manner, the volume of the second cavity is increased or reduced, a machine shell is fixedly arranged on the cylinder body, a motor is fixedly arranged in the machine shell, an eccentric wheel is fixedly arranged on the output end of the motor, the second piston is abutted against the eccentric wheel, the eccentric wheel can drive the second piston to slide towards the second cavity, a control module is further arranged in the machine shell, a handle part is fixedly arranged on the machine shell, a hand, the control module is also connected with a lead positioned outside the shell, and the lead is connected with a foot switch.

Preferably, the control module is connected with a power socket, the power socket is fixedly arranged on the handle part, the conducting wire is connected with a power plug, and the power plug is plugged in the power socket.

Preferably, a proximity switch is fixedly arranged on the power-on socket, the proximity switch is connected to the control module, a trigger is fixedly arranged on the power-on plug, when the power-on plug is plugged into the power-on socket, the trigger is located within the detection range of the proximity switch, and when the proximity switch detects the trigger, the control module does not send out a switch signal of the handheld switch to the motor so as to execute a function corresponding to the handheld switch.

Preferably, the proximity switch is a hall sensor, and the trigger is a magnet.

Preferably, the handle portion is in a U shape, two ends of the handle portion are fixedly arranged on the casing, and the handheld switch is arranged on the inner side of the handle portion.

Preferably, the number of the second pistons is at least three, and the second pistons are uniformly arranged on the cylinder along the circumferential direction of the cam.

Preferably, the control module is connected with a power supply, and the power supply is an alternating current input end or a battery.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

(1) when the portable electric punching machine is used, a user can control the motor through the hand-held switch on the hand-held part and can control the motor through the foot-treading switch on the lead, so the portable electric punching machine has the advantages of being capable of being controlled manually and controlled by feet, and being more convenient to control.

(2) The switch is controlled to this portable electronic piercing press hand-held switch of exclusive use, can install the foot again and step on the switch and control the motor through the foot.

(3) Being provided with proximity switch on the circular telegram socket, being provided with the trigger on the circular telegram plug, when circular telegram plug pegs graft in circular telegram socket, control module does not send out handheld switch's switching signal to the motor in order to carry out the function corresponding to handheld switch, and at this moment, handheld switch is equivalent to "inefficacy", and the user only can control motor work through the foot is stepped on the switch, avoids handheld switch and foot to step on the problem that the switch use and take place the conflict mutually.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is one of the schematic views of the explosion structure of the present invention;

fig. 4 is a second schematic diagram of the explosion structure of the present invention;

in the figure: 1-oil cylinder, 2-upper punch die, 3-lower punch die, 4-machine shell, 5-handle part, 6-eccentric wheel, 7-motor, 8-control module, 91-hand switch, 92-lead, 93-foot switch, 94-power socket, 95-power plug, 96-proximity switch, 97-trigger, 98-power supply, 11-cylinder body, 12-first piston, 13-second piston, 111-first chamber and 112-second chamber.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, a portable electric punching machine comprises an oil cylinder 1, wherein the oil cylinder 1 comprises a cylinder body 11, a first piston 12 is arranged in the cylinder body 11 in a sliding manner, the cross section of the first piston 12 is in a T shape, the first piston 12 is movable, and the first piston 12 can extend out of the cylinder body 11 or retract into the cylinder body 11.

The outer end of the first piston 12 is fixedly provided with an upper punching die 2, the cylinder 11 is fixedly provided with a lower punching die 3 corresponding to the upper punching die 2, the lower punching die 3 is integrally formed on the cylinder 11, the first piston 12 can drive the upper punching die 2 to be close to or far away from the lower punching die 3, and a workpiece can be punched between the upper punching die 2 and the lower punching die 3.

The first piston 12 divides the interior of the cylinder 11 into a first chamber 111 and a second chamber 112, the second piston 13 is arranged in the second chamber 112 in a sliding mode, the second piston 13 slides, the volume of the second chamber 112 increases or decreases, when the second piston 13 slides towards the outside of the second chamber 112, the volume of the second chamber 112 increases, a pressure difference is formed between the first chamber 111 and the second chamber 112, the first piston 12 contracts towards the inside of the cylinder 11 under the action of pressure, when the second piston 13 slides towards the inside of the second chamber 112, the volume of the second chamber 112 decreases, the first chamber 111 and the second chamber 112 also form a pressure difference, and the first piston 12 extends outwards under the action of pressure, so that the purpose of punching is achieved.

The cylinder 11 is fixedly provided with a casing 4, the casing 4 is internally fixedly provided with a motor 7, the output end of the motor 7 is fixedly provided with an eccentric wheel 6, the second piston 13 can be kept in contact with the eccentric wheel 6 under the pressure action of the oil cylinder 1, and when the motor 7 works, the eccentric wheel 6 can drive the second piston 13 to slide into the second chamber 112.

The specific working principle of the portable electric punching machine is described as follows: when the motor 7 works, the eccentric wheel 6 eccentrically rotates and drives the second piston 13 to slide into the second chamber 112, the pressure in the second chamber 112 is increased, a pressure difference is formed between the second chamber 112 and the first chamber 111, and the first piston 12 drives the upper die 2 to move towards the lower die 3 under the action of the pressure, so that a workpiece between the upper die 2 and the lower die 3 is punched.

Still be provided with control module 8 in the casing 4, control module 8 is the singlechip, fixedly on the casing 4 sets up handle portion 5, and hydro-cylinder 1 and handle portion 5 set up respectively at the front end and the rear end of casing 4.

The handle part 5 is provided with a handheld switch 91, the handheld switch 91 is used for controlling the motor 7 to start and stop, the control module 8 is respectively connected with the motor 7 and the handheld switch 91, and the control module 8 can send a switch signal of the handheld switch 91 to the motor 7 to execute a function corresponding to the handheld switch 91.

The control module 8 is further connected with a lead 92 located outside the housing 4, the lead 92 is connected with a foot switch 93, the foot switch 93 is also used for controlling the start and stop of the motor 7, and the control module 8 can also send a switch signal of the foot switch 93 to the motor 7 to execute a function corresponding to the foot switch 93. When the portable electric punching machine is used, the portable electric punching machine can be installed on a workbench, the foot switch 93 can be placed on the ground, and a user can control the starting and stopping of the motor 7 by stepping on the foot switch 93.

When the portable electric punching machine is used, a user can control the motor 7 through the hand switch 91 on the hand-held part and can control the motor 7 through the foot switch 93 on the lead 92, so the portable electric punching machine has the advantages of manual control, foot control and more convenient control.

The control module 8 is connected with a power-on socket 94, the power-on socket 94 is fixedly arranged on the outer side of the handle part 5, the conducting wire 92 is connected with a power-on plug 95, the foot switch 93 and the power-on plug 95 are specifically respectively arranged at two ends of the conducting wire 92, and the power-on plug 95 is inserted into the power-on socket 94.

The user accessible is pulled out and is inserted circular telegram plug 95, realizes the dismouting of foot switch 93, and this portable electric piercing press can use hand switch 91 alone to control motor 7, can install foot switch 93 again and control motor 7 through foot switch 93.

The switch-on socket 94 is fixedly provided with a proximity switch 96, the proximity switch 96 is connected on the control module 8, the switch-on plug 95 is fixedly provided with a trigger 97, when the switch-on plug 95 is plugged in the switch-on socket 94, the trigger 97 is located in the detection range of the proximity switch 96, when the proximity switch 96 detects the trigger 97, the control module 8 does not send out a switch signal of the hand switch 91 to the motor 7 to execute the function corresponding to the hand switch 91, at the moment, the hand switch 91 is equivalent to 'failure', a user can only control the motor 7 to work through the foot switch 93, and the problem that the hand switch 91 and the foot switch 93 conflict with each other in use is avoided.

The proximity switch 96 is specifically a hall sensor and the trigger 97 is specifically a magnet.

The integral structure of the handle part 5 is in a U shape, two ends of the handle part 5 are fixedly arranged on the casing 4, and the hand switch 91 is arranged on the inner side of the handle part 5.

The number of the second pistons 13 is three, and the three second pistons 13 are uniformly arranged on the cylinder 11 in the circumferential direction of the cam.

The control module 8 is connected with a power supply 98, the power supply 98 is used for supplying electric energy, and the power supply 98 is a battery.

Claims

1. A portable electric punching machine comprises an oil cylinder (1), wherein the oil cylinder (1) comprises a cylinder body (11), a first piston (12) is arranged in the cylinder body (11) in a sliding mode, an upper punching die (2) is fixedly arranged at the outer end of the first piston (12), a lower punching die (3) corresponding to the upper punching die (2) is fixedly arranged on the cylinder body (11), the first piston (12) can drive the upper punching die (2) to be close to or far away from the lower punching die (3), the first piston (12) divides the interior of the cylinder body (11) into a first chamber (111) and a second chamber (112), a second piston (13) is arranged in the second chamber (112) in a sliding mode, the second piston (13) slides, the volume of the second chamber (112) is increased or reduced, a machine shell (4) is fixedly arranged on the cylinder body (11), a motor (7) is fixedly arranged in the machine shell (4), an eccentric wheel (6) is fixedly arranged on the, second piston (13) keeps the butt on eccentric wheel (6), eccentric wheel (6) can drive second piston (13) and slide to second cavity (112), a serial communication port, still be provided with control module (8) in casing (4), fixed handle portion (5) that set up on casing (4), set up on handle portion (5) at hand switch (91), motor (7) and hand switch (91) are connected respectively in control module (8), still be connected with wire (92) that lie in outside casing (4) on control module (8), be connected with on wire (92) and step on switch (93).

2. A portable, powered punch machine as claimed in claim 1, characterised in that a power socket (94) is connected to the control module (8), the power socket (94) being fixedly mounted on the handle portion (5), and a power plug (95) being connected to the wire (92), the power plug (95) being plugged into the power socket (94).

3. The portable electric punch as claimed in claim 2, wherein the power-on socket (94) is fixedly provided with a proximity switch (96), the proximity switch (96) is connected to the control module (8), the power-on plug (95) is fixedly provided with a trigger (97), when the power-on plug (95) is plugged into the power-on socket (94), the trigger (97) is located within a detection range of the proximity switch (96), and when the proximity switch (96) detects the trigger (97), the control module (8) does not send a switching signal of the hand switch (91) to the motor (7) to perform a function corresponding to the hand switch (91).

4. A portable power-operated punch as claimed in claim 3 wherein the proximity switch (96) is a hall sensor and the trigger (97) is a magnet.

5. The portable electric punching machine according to claim 1, wherein the handle portion (5) is formed in a U-shape in its entirety, both ends of the handle portion (5) are fixedly provided on the housing (4), and the hand switch (91) is provided inside the handle portion (5).

6. The portable electric punch as claimed in claim 1, wherein the number of the second pistons (13) is at least three, and the second pistons (13) are uniformly provided on the cylinder (11) in the circumferential direction of the cam.

7. The portable power punch machine of claim 1, wherein a power source (98) is connected to the control module (8), the power source (98) being an ac input or a battery.