Safety type electric crimping tool

Abstract

The utility model relates to the field of electric tools, and discloses a safety type electric crimping tool, which comprises a shell, a motor, a roller, a crimping head, a recognizer and a torsion protection device, the motor is installed at the tail end of the shell, and an output shaft of the motor is arranged in the shell. The crimping head is mounted at the front end of the shell; the recognizer is installed outside the crimping head. A roller seat is arranged on the outer side of the roller, and the roller seat and the roller are arranged in the crimping head; and the torsion protection device is arranged in the shell. The mounting state of the crimping head is recognized through the recognizer, when the crimping head is not mounted in a normal position, the motor is always kept in an open-circuit state, the tool is prevented from running, and the situation that the moving track of the roller is inclined due to mounting deflection of the crimping head is avoided, so that the crimping head is prevented from being damaged due to asynchronous crimping; in addition, the torsion protection device prevents the roller from resetting to generate strong torque to press the shell, so that the shell and the crimping head are prevented from being pressed and damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric tool field especially is related to a safe electric pressure welding tool. BACKGROUND

[0002] Electric pressure welding tool is a kind of tool that is powered by power supply, and the working head is driven to work by transmission mechanism, usually relies on the roller to drive the pressure welding head to carry out pressure welding work.

[0003] Patent publication number CN116810725A discloses an electric pressure welding tool, comprising: a shell;Working mechanism, with pressure welding head;Driving mechanism for driving pressure welding head to work;And control mechanism for controlling driving mechanism to work, and with power supply and control panel;Wherein, the driving mechanism has: roller assembly, containing the roller and the roller seat of installing roller acting on pressure welding head;Push rod assembly, for driving roller seat to move, and containing: screw rod, rotationally arranged in the shell;Push rod, movably arranged on the outer side of the end portion of screw rod, and the end portion is fixed with roller seat;And guide sleeve, is set on the outer periphery of the screw rod and the push rod;Push rod can drive roller seat to move in the process of screw rod rotation.

[0004] But the pressure welding head in the above patent and the shell do not have the structure for torsion protection, when the roller reset distance is far, the strong torque produced is easy to crush the shell, in addition, since the existing pressure welding head and shell are mostly connected in detachable mode, when the installation angle of pressure welding head is inclined, it is not easy to detect, and the moving track of roller is easy to be inclined in this state, so that the pressure welding head has the risk of damage. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem proposed in the above background art, and provides a safe electric pressure welding tool.

[0006] The utility model solves the technical problem by adopting the following technical scheme:

[0007] A safe electric pressure welding tool, comprising a shell, a motor, a roller, a pressure welding head, an identifier, a torsion protection device and a transmission assembly.

[0008] The motor is installed at the tail end of the shell, and the output shaft of the motor is arranged inside the shell.

[0009] The pressure welding head is installed at the front end of the shell.

[0010] The identifier is installed outside the pressure welding head.

[0011] The outer side of the roller is provided with a roller seat, and the roller seat and the roller are arranged inside the pressure welding head.

[0012] The torsion protection device is arranged inside the shell, and the tail end of the torsion protection device is connected with the output shaft of the motor through the transmission assembly; and the front end of the torsion protection device is fixedly connected with the roller seat.

[0013] Preferably, the transmission assembly comprises a screw rod, a protection sleeve and a push block.

[0014] The screw rod, the protection sleeve and the push block are all arranged inside the shell.

[0015] The screw rod is fixedly connected with the output shaft of the motor.

[0016] The protection sleeve is arranged on the outer wall of the screw rod and is threadedly connected with the outer wall of the screw rod; and the protection sleeve is slidingly connected with the inner wall of the shell.

[0017] The front end of the protection sleeve is fixedly connected with the push block, and the front end of the push block is connected with the torsion protection device.

[0018] Preferably, the identifier is connected with the motor through a wire, and a Hall element capable of identifying a magnet is arranged on the identifier; and a bolt is arranged on the outer side of the compression joint, and a magnet is arranged at the crank of the bolt.

[0019] Preferably, a cavity perpendicular to the screw rod is arranged on the torsion protection device, a spring is arranged in the cavity, a ball is fixedly connected with the outer end of the spring, the ball is bounced out of the cavity by the spring, a clamping groove is arranged on the inner wall of the shell near the roller, and the ball is clamped in the clamping groove.

[0020] The utility model discloses the beneficial effects of:

[0021] 1. The utility model discloses a safety type electric compression joint tool, which comprises a shell, a motor, a transmission assembly, a torsion protection device, a roller seat, a compression joint and a recognition device.

[0022] 2. The utility model discloses a safety type electric compression joint tool, which comprises a shell, a motor, a transmission assembly, a torsion protection device, a roller seat, a compression joint and a recognition device. DRAWINGS

[0023] Figure 1 It is the whole structure schematic diagram of the safety type electric compression joint tool.

[0024] Figure 2 It is the shell section schematic diagram of the safety type electric compression joint tool.

[0025] Explanation of reference signs: 1, shell; 2, motor; 3, roller; 4, crimping head; 5, identifier; 6, bolt; 7, screw rod; 8, protective sleeve; 9, push block; 10, torque protection device; 11, cavity; 12, ball; 13, spring. DETAILED DESCRIPTION

[0026] The concept and the technical effects of the present application will be described clearly and completely in combination with the embodiments below, so as to fully understand the purpose, features and effects of the present application.

[0027] The present application designs a safe electric crimping tool, as shown in the accompanying drawings Figure 1 , which comprises a shell 1, a motor 2, a roller 3, a crimping head 4, an identifier 5, a torque protection device 10 and a transmission assembly.

[0028] The motor 2 is installed at the tail end of the shell 1, and the output shaft of the motor 2 is arranged inside the shell 1.

[0029] The crimping head 4 is installed at the front end of the shell 1.

[0030] The identifier 5 is installed outside the crimping head 4.

[0031] The outer side of the roller 3 is provided with a roller seat, and the roller seat and the roller 3 are arranged inside the crimping head 4.

[0032] The torque protection device 10 is arranged inside the shell, and the tail end of the torque protection device 10 is connected with the output shaft of the motor 2 through the transmission assembly; the front end of the torque protection device 10 is fixedly connected with the roller seat.

[0033] As shown in the accompanying drawings Figure 2 , the output shaft of the motor 2 is fixedly connected with a screw rod 7, and the transmission assembly comprises the screw rod 7, a protective sleeve 8 and a push block 9.

[0034] The screw rod 7, the protective sleeve 8 and the push block 9 are all arranged inside the shell 1.

[0035] The screw rod 7 is fixedly connected with the output shaft of the motor 2.

[0036] The protective sleeve 8 is arranged on the outer wall of the screw rod 7 and is threadedly connected with the outer wall of the screw rod 7; the protective sleeve 8 is slidingly connected with the inner wall of the shell 1.

[0037] The front end of the protective sleeve 8 is fixedly connected with the push block 9, and the front end of the push block 9 is connected with the torque protection device 10.

[0038] The part where the output shaft of the motor 2 is connected with the screw rod 7 is provided with a speed reduction gear for slowing down the rotating speed of the screw rod 7, thereby improving the stability of the operation of the screw rod 7, wherein the principle that the screw rod 7 drives the roller 3 to operate is the working principle of the roller driving the crimping head commonly used in the prior art.

[0039] The recognizer 5 is connected with the motor 2 through a wire, and a Hall element capable of recognizing a magnet is installed on the recognizer 5; a plug-in pin 6 is arranged on the outer side of the crimping head 4, and a magnet is installed at the crank of the plug-in pin 6;

[0040] When the installation position of the crimping head 4 is skewed, the Hall element cannot sense the magnet, and the motor 2 remains in an open circuit state;

[0041] When the crimping head 4 is installed to the right position, the Hall element senses the magnet and transmits a signal to the motor 2, allowing the motor 2 to operate;

[0042] When the crimping head 4 is skewed or damaged, the magnet is also skewed, the Hall element cannot sense the signal of the magnet and closes the motor 2, so that the motor 2 returns to the open circuit state.

[0043] The torsion protection device 10 is provided with a cavity 11 perpendicular to the lead screw 7, a spring 13 is installed in the cavity 11, the outer end of the spring 13 is fixedly connected with a ball 12, the ball 12 is bounced out of the cavity 11 by the spring 13, a clamping groove is arranged on the inner wall of the shell 1 close to one end of the roller 3, the ball 12 is a combination of a hemisphere and a cylinder, and the cylinder is connected with the spring 13, the cylinder part of the ball 12 is clamped in the clamping groove, and the hemisphere part of the ball 12 is pushed back into the cavity 11 by the inner wall of the crimping head 4 during normal movement of the torsion protection device 10, so as to prevent the ball 12 from affecting the normal working process, and the torsion protection device 10 is a stepped structure and can be clamped outside the shell 1 to prevent the roller 3 from directly pressing the shell 1.

[0044] When the roller 3 approaches the shell 1, the torsion protection device 10 moves into the shell 1, the spring 13 bounces the ball 12 out, so that the ball 12 is clamped on the inner side of the shell 1, and the movement of the roller 3 towards the shell 1 is prevented, so as to avoid that the roller 3 presses the shell 1 and causes damage to the shell 1.

[0045] The above embodiments are only part of the embodiments of the present application, not all the embodiments, and other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative labor are within the protection scope of the present application.

Claims

1. A safety-type electric crimping tool characterized by: The utility model relates to a kind of crimping head, including shell (1), motor (2), roller (3), crimping head (4), identifier (5), torsion protection device (10), transmission assembly; The motor (2) is installed at the tail end of the shell (1), and the output shaft of the motor (2) is arranged inside the shell (1); The crimping head (4) is installed at the front end of the shell (1); The identifier (5) is installed outside the crimping head (4); The outer side of the roller (3) is provided with a roller seat, and the roller seat and the roller (3) are arranged inside the crimping head (4); The torsion protection device (10) is arranged inside the shell, and the tail end of the torsion protection device (10) is connected with the output shaft of the motor (2) through the transmission assembly; the front end of the torsion protection device (10) is fixedly connected with the roller seat.

2. A safety electric crimping tool according to claim 1, characterized in that: The transmission assembly includes a lead screw (7), a protective sleeve (8), and a push block (9); The lead screw (7), the protective sleeve (8), and the push block (9) are all arranged inside the shell (1); The lead screw (7) is fixedly connected with the output shaft of the motor (2); The protective sleeve (8) is arranged on the outer wall of the lead screw (7) and is threadedly connected with the outer wall of the lead screw (7); the protective sleeve (8) is slidingly connected with the inner wall of the shell (1); The front end of the protective sleeve (8) is fixedly connected with the push block (9), and the front end of the push block (9) is connected with the torsion protection device (10).

3. A safety electric crimping tool according to claim 2, wherein: The identifier (5) is connected with the motor (2) through wires, and a Hall element capable of identifying a magnet is installed on the identifier (5); a latch (6) is arranged on the outer side of the crimping head (4), and a magnet is installed at the crank of the latch (6).

4. A safety electric crimping tool according to claim 1, characterized in that: A cavity (11) perpendicular to the lead screw (7) is formed in the torsion protection device (10), a spring (13) is installed inside the cavity (11), the outer end of the spring (13) is fixedly connected with a ball (12), the ball (12) is bounced outside the cavity (11) by the spring (13), a clamping groove is formed in the inner wall of the shell (1) close to one end of the roller (3), and the ball (12) is clamped inside the clamping groove.

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