JP3202418U - Joining device - Google Patents

Abstract

Provided is a joining device having a simple structure and capable of solving the problem of deterioration of drive oil and the problem of oil leakage. One casing, one clamping tool 30, one power unit 40, and one transmission unit are provided. The clamping tool 30 is provided at one end of the casing. The power unit 40 is provided in the casing, and includes a motor 41 and a reduction gear assembly 42 connected to the motor 41. The transmission unit is provided in the casing, and has one transmission shaft 51 and one pressing member 52. The transmission shaft 51 is connected to the reduction gear assembly 42 of the power unit 40, and the pressing member 52 is transmitted. The clamping tool 30 is pressed or separated from the clamping tool 30 by being connected to the shaft 51 and driven by the transmission shaft 51. [Selection] Figure 3

Description

  The present invention relates to a joining device that joins pipes, and more particularly, to a joining device that can solve the problem of oil leakage.

  The joining device is used to join two metal tubes. When working, first connect one end of the two metal tubes to the sleeve, then sandwich the connection part of the two metal tubes between the clamps of the joining device, and connect the two metal tubes using the clamps Pressure is applied to the part, and the connecting part of the two metal tubes is deformed and fixed in the radial direction.

  The conventional joining device drives the clamping tool using hydraulic pressure. In order to reduce the flow resistance of the driving oil, it is necessary to form an oil passage that is excellent in structure. However, the arrangement of the oil passage complicates the overall configuration. Further, when the driving oil is used for a long time, it causes deterioration problems and oil leakage problems. Therefore, the clamping force of the clamping tool is affected.

  An object of the present invention is to provide a joining apparatus having a simple structure and capable of solving the problem of deterioration of drive oil and the problem of oil leakage.

  In order to achieve the above object, the joining device of the present invention includes one casing, one clamping tool, one power unit, and one transmission unit. The clamping tool is provided at one end of the casing. The power unit is provided in the casing and has one motor and one speed reduction gear assembly connected to the motor. The transmission unit is provided in the casing, has one transmission shaft and one pressing member, the transmission shaft is connected to the reduction gear assembly of the power unit, and the pressing member is connected to the transmission shaft. By driving the transmission shaft, the clamping tool is pressed or separated from the clamping tool.

  A preferable joining apparatus further includes one sensor unit. The sensor unit is provided in the casing and has one oil reserve tank, one piston member, and one pressure sensor. The oil reserve tank has one oil reserve space, a sensor hole communicating with the oil reserve space is formed at one end, and an opening communicating with the oil reserve space is formed at the other end. The piston member is provided in the opening of the oil reserve tank and has a shaft hole. The pressure sensor is electrically connected to one controller, has one sensor part, and the sensor part is provided in the sensor hole of the oil reserve tank. The transmission shaft has one pressurizing end, and the pressurizing end is rotatably provided in the shaft hole of the piston member. As a result, when the clamping tool is pressed by the pressing member to generate a clamping force, the pressure end of the transmission shaft presses the driving oil in the oil reserve space via the piston member, and the pressure received by the driving oil is detected by the pressure sensor. . At this time, the controller calculates whether or not the clamping force of the clamping tool is sufficient based on the pressure value detected by the pressure sensor, and controls the rotational speed of the motor.

  Preferably, the holding tool has two pliers facing each other at one end and two abutting portions at the other end. Each contact portion has one slope. The distance between the inclined surfaces of the two contact portions gradually decreases as the distance from the pressing member increases. The pressing member has two rotating wheels provided in parallel. Thereby, a pressing member presses the slope of a clamping tool via two rotating wheels, and closes the pliers part of a clamping tool.

1 is a perspective view showing a joining device according to an embodiment of the present invention. It is a disassembled perspective view which shows the principal part of the joining apparatus by one Embodiment of this invention. 1 is a longitudinal sectional view showing a joining device according to an embodiment of the present invention. It is a transverse direction sectional view showing the joining device by one embodiment of the present invention, and shows the state where the pressing member has not pressed the clamping tool. It is a transverse cross section showing the joining device by one embodiment of the present invention, and shows the state where the pressing member pressed the clamping tool.

  As shown in FIGS. 1 to 3, a joining device 10 according to an embodiment of the present invention includes one casing 20, one clamping tool 30, one power unit 40, and one transmission unit 50.

  The casing 20 has one handle part 21, one gear case 22, and one holding tool attaching part 23 in order from the back to the front. The holding tool attaching portion 23 has one guide groove 24 and two position limiting grooves 25 communicating with the guide groove 24 at the front end.

  The clamping tool 30 is provided at the front end of the clamping tool mounting portion 23 of the casing 20 by one shaft member 35. The holding tool 30 has two pliers 31 facing each other at one end, and has two abutting portions 32 and one notch 33 interposed between the two abutting portions 32 at the other end. Each contact portion has one inclined surface 34. The distance between the inclined surfaces 34 gradually decreases as the distance between the two pliers 31 approaches.

  As shown in FIG. 3, the power unit 40 includes one motor 41, one reduction gear assembly 42, and one controller 43. The motor 41 has both front and rear ends connected to the bottom end of the handle portion 21 of the casing 20 and the bottom end of the gear case 22 of the casing 20 and is used to provide power. The reduction gear assembly 42 is provided in the gear case 22 of the casing 20 and is connected to one output shaft 44 of the motor 41, and is used for the effect of reducing the rotational speed and increasing the rotational torque. The controller 43 is provided in the handle portion 21 of the casing 20, is electrically connected to the motor 41, and is used to control the operation of the motor 41. The power unit 40 further includes one touch control switch 45, one trigger 46, and one trigger spring 47. The touch control switch 45 is provided in the handle portion 21 of the casing 20 and is electrically connected to the controller 43. The trigger 46 is rotatably provided on the handle portion 21 of the casing 20 and touches the touch control switch 45 by pressing of an external force. The trigger spring 47 is provided in the handle portion 21 of the casing 20 and is pressed against the trigger 46 so that the trigger 46 is kept away from the touch control switch 45.

As shown in FIGS. 2 and 3, the transmission unit 50 includes one transmission shaft 51 and a thrust member 52. The transmission shaft 51 has one transmission portion 53 and one screw portion 54. The transmission unit 53 is located in the gear case 22 of the casing 20 and is connected to the reduction gear assembly 42 of the power unit 40, and the transmission shaft 51 can be rotated by driving the motor 41 of the power unit 40. The screw part 54 is located in the holding tool attaching part 23 of the casing 20. The thrust member 52 is provided in the holding tool attachment portion 23 of the casing 20 and has one female screw pipe 56, one wheel seat 57, and two rotating wheels 58. The female screw tube 56 is screwed to the screw portion 54 of the transmission shaft 51. The wheel seat 57 is connected to the front end of the female screw tube 56 by a single pin member 59, and is provided in the guide groove 24 of the holding tool mounting portion 23 of the casing 20 so as to be linearly movable. The two rotating wheels 58 are rotatably provided on the wheel seat 57 so as to be in parallel with each other, and are positioned in the position limiting groove 25 of the holding tool mounting portion 23 of the casing 20. Accordingly, the female screw tube 56 moves along the axial direction of the transmission shaft 51 by interlocking the rotating wheel 58 via the wheel seat 57 by driving the transmission shaft 51.

  When used, as shown in FIGS. 3 and 4, first, a force is applied to open the pliers 31 of the holding tool 30. Then, the tube 12 is placed between the pliers 31 of the holding tool 30. At this time, the pliers 31 of the clamping tool 30 clamps the tube 12 by the elasticity of one clamping tool spring (not shown). Subsequently, the trigger 46 is pressed. The trigger 46 is pressed and touches the touch control switch 45. The touch control switch 45 transmits an activation signal to the controller 43. The controller 43 controls and starts the motor 41. The motor 41 is activated, transmits power to the transmission shaft 51 via the reduction gear assembly 42, and drives and rotates the transmission shaft 51. When the transmission shaft 51 rotates, the thrust member 52 does not rotate with the transmission shaft 51 due to the position restriction effect of the position restriction groove 25 of the casing 20, and faces the holding tool 30 along the axial direction of the transmission shaft 51. Go straight ahead. When the rotating wheel 58 of the pushing member 52 enters the holding tool 33, as shown in FIG. 5, the distance between the inclined surfaces 34 of the two abutting portions 32 of the holding tool 30 becomes small. With the advancement of 52, the two contact portions 32 of the holding tool 30 are simultaneously pressed against the rotating wheel 58 of the thrust member 52. Thereby, the pliers part 31 of the clamping tool 30 applies a clamping force to the connection part of two pipes by the lever principle.

  When the pressure on the trigger 46 is released after the clamping work is completed, the motor 41 is controlled and reversely moved by the controller 43, and the thrusting member 52 is driven by the transmission shaft 51 to move toward the clamping tool 30 for clamping. The pressing force of the rotating wheel 58 of the pushing member 52 against the abutting portion 32 of the tool 30 is released. At this time, the processed tube 12 can be taken out from between the pliers 31 of the holding tool 30.

  On the other hand, in order to maintain the stability of the clamping force of the pliers 31 of the clamping tool 30, the present invention further includes one sensor unit 60. As shown in FIGS. 2 to 4, the sensor unit 60 is provided in the handle portion 21 of the casing 20 and has one oil reserve tank 61, one piston member 62, and one pressure sensor 63. The oil reserve tank 61 has one oil reserve space 64, a sensor hole 65 communicating with the oil reserve space 64 is formed at one end, and an opening 66 communicating with the oil reserve space 64 at the other end. Is formed. The piston member 62 is provided in the opening 66 of the oil reserve tank 61, and a shaft hole 67 is formed at one end opposite to the oil reserve space 64. The pressure sensor 63 is electrically connected to the controller 43 and has one sensor unit 68. The sensor unit 68 is provided through the sensor hole 65 of the oil reserve tank 61. The transmission shaft 51 has one pressure end 55, and the pressure end 55 is rotatably provided in the shaft hole 67 of the piston member 62. As described above, when the pliers 31 of the holding tool 30 generate a pinching force, the pressure end 55 of the transmission shaft 51 against the driving oil in the oil reserve space 64 via the piston member 62 due to the resistance force. Press. At this time, the pressure sensor 63 detects the pressure received by the drive oil by the sensor unit 68, transmits the detection result to the controller 43, and performs analysis processing. Thus, the controller 43 calculates whether or not the clamping force of the clamping tool 30 is sufficient based on the pressure value detected by the pressure sensor 63, and controls the rotation speed of the motor 41.

  As described above, the joining apparatus 10 of the present invention uses the mechanical configuration of the motor 41 and the reduction gear assembly 42 as a power source. On the other hand, it has the effect of simplifying the structure because the arrangement of complicated oil passages is unnecessary, and on the other hand, the problem of oil deterioration resulting from the conventional hydraulic configuration and the problem of oil leakage can be solved The object of the present invention can be achieved.

DESCRIPTION OF SYMBOLS 10 Joining device 12 Pipe | tube 20 Casing 21 Handle part 22 Gear case 23 Holding tool attachment part 24 Guide groove 25 Position restriction groove 30 Pinch part 31 Plier part 32 Contact part 33 Notch 34 Slope 35 Shaft member 40 Power unit 41 Motor 42 Deceleration Gear assembly 43 Controller 44 Output shaft 45 Touch control switch 46 Trigger 47 Trigger spring 50 Transmission unit 51 Transmission shaft 52 Pushing member 53 Transmission portion 54 Screw portion 55 Female end tube 57 Threaded seat 58 Rotating wheel 59 Pin member 60 Sensor unit 61 Oil reserve tank 62 Piston member 63 Pressure sensor 64 Oil reserve space 65 Sensor hole 66 Opening 67 Shaft hole 68 Sensor part

Claims (6)

One casing,
One clamping tool provided at one end of the casing;
A power unit provided in the casing and having a motor and a reduction gear assembly connected to the motor;
The casing is provided with a transmission shaft and a pressing member, the transmission shaft is connected to the reduction gear assembly of the power unit, and the pressing member is connected to the transmission shaft. And a transmission unit that presses the clamping tool or moves away from the clamping tool by driving the transmission shaft. It further includes one sensor unit,
The sensor unit is provided in the casing, and includes one oil reserve tank, one piston member, and one pressure sensor.
The oil reserve tank has one oil reserve space, a sensor hole communicating with the oil reserve space is formed at one end, and an opening communicating with the oil reserve space is formed at the other end. And
The piston member is provided in the opening of the oil reserve tank, and a shaft hole is formed at one end opposite to the oil reserve space,
The pressure sensor has one sensor part, and the sensor part is provided in the sensor hole of the oil reserve tank,
The said transmission shaft has one pressurization end, The said pressurization end is rotatably provided in the said shaft hole of the said piston member, The joining apparatus of Claim 1 characterized by the above-mentioned.   The joining apparatus according to claim 2, wherein the power unit further includes one controller, and the controller is electrically connected to the pressure sensor and the motor. The power unit further includes one touch control switch, one trigger, and one trigger spring,
The touch control switch is provided in the casing and is electrically connected to the controller,
The trigger is rotatably provided on the casing, and is detachably contacted with the touch control switch,
The joining device according to claim 3, wherein the trigger spring is provided in the casing and presses the trigger. The casing has a holding tool mounting portion,
The clamping tool mounting portion has one guide groove and two position restriction grooves facing each other, and the two position restriction grooves communicate with both sides of the guide groove,
The transmission shaft has a threaded portion;
The pressing member has one female screw tube, one wheel seat, and two rotating wheels, and the female screw tube is provided on a threaded portion of the transmission shaft,
The wheel seat is connected to one end of the female threaded tube, and is provided so as to be movable in the guide groove of the clamp attachment part of the casing.
The two rotating wheels are provided so as to be rotatable in parallel with the wheel seat, and are provided movably in the position restricting groove of the clamping tool mounting portion of the casing. The joining apparatus according to claim 1, wherein the holding tool is pressed or separated from the holding tool by movement in a direction. The holding tool has two pliers facing each other at one end, two abutting portions at the other end, and one notch interposed between the two abutting portions. The part has one slope, and the distance between the slopes of the two contact parts gradually decreases as the two pliers are approached,
When the rotating wheel of the pressing member is inserted into the notch of the clamping tool, the rotating member presses the inclined surface of the abutting portion of the clamping tool to close the two pliers of the clamping tool. The joining apparatus according to claim 5, wherein

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