Pull head

Abstract

The utility model provides a puller, relates to the technical field of pullers, aims to solve the riveting problem in a narrow space through the 90-degree steering structural design of the puller, and is characterized in that a sleeve is arranged on a main body; a pull claw is arranged in the sleeve of the main body; the pull claw is connected with the ejector rod; the ejector rod is connected with the mandrel through a spring; the fixing piece is slidably connected with the connecting piece; the bottom of the pressing piece is connected with the annular protrusion on the fixing piece through a spring. And the inserting piece is connected with the fixing piece through the spring. The connecting piece and the fixing piece are connected together in an inserted mode, the pressing piece is pressed downwards, so that the pressing piece compresses the spring, then the inserting piece is separated from the pressing piece, and the inserting piece restores to the initial position through the reset effect of the spring, and after the connecting piece is completely inserted into the fixing piece, the pressing piece is loosened; the inner wall of the pressing piece makes contact with the spherical protrusion on the inserting piece, the inserting piece is driven to be inserted into the round hole in the connecting piece, and rapid connection is completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of puller, more specifically, it relates to a puller. BACKGROUND

[0002] When installing the core-pulling screw, the core head is inserted into the puller inside the riveting gun, the relative displacement between the pin rod and the pin sleeve is generated by pulling the pull rod, the pin sleeve is fixed, the shear ring on the pin rod extrudes the pin sleeve and drills into the inner hole, a blind end upset is formed and the pin sleeve is expanded, clamping with the structure is generated, the pin rod is continuously pulled, the shear ring is sheared, the pin rod and the lock ring continue to move, the lock ring is deformed after contacting the top sheet, fills the pin sleeve end head groove, the pin rod and the pin sleeve are completely locked together, the pin rod is pulled off at the pin sleeve head plane, and riveting is completed.

[0003] Based on the existing technology, it is found that the existing puller cannot quickly clamp the core-pulling screw during use, and the existing puller is usually connected with the riveting gun in a threaded connection mode, the puller needs to be cleaned or the damaged parts need to be replaced after long-time use, and the threaded installation is prone to thread slipping, cannot be conveniently and quickly connected with the riveting gun, and cannot be riveted in a narrow space. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides a puller, to solve the existing puller when using, cannot quickly to core-pulling screw clamping, and the existing puller when using, usually for through the threaded connection mode with riveting gun connects, threaded installation easy to appear thread slipping situation, cannot be conveniently and quickly connected with the riveting gun, cannot be riveted in a narrow space.

[0005] The utility model discloses a puller, which is achieved by the following specific technical means:

[0006] A puller, comprising a mounting portion, a connecting portion and a fixing portion.

[0007] The mounting portion is provided with the connecting portion at the bottom, and the fixing portion is connected with the connecting portion.

[0008] The mounting portion comprises a main body, a sleeve is arranged on the main body, a puller pawl is arranged inside the sleeve of the main body, the puller pawl is connected with a top rod, the top rod is connected with a mandrel through a spring, the mandrel is arranged on an upper connecting rod through a rubber ring, the upper connecting rod is connected with a link piece A, the upper connecting rod is connected with the main body, the link piece A is connected with a middle connecting rod, the middle connecting rod is connected with the main body, and the bottom of the middle connecting rod is connected with a link piece B.

[0009] Further, a nut is arranged inside the main body, and the puller pawl is arranged in two groups.

[0010] Further, the connecting part comprises a lower connecting rod.

[0011] The top of the lower connecting rod is provided with a U-shaped structure; the lower connecting rod is arranged at the bottom of the link piece B; and the lower connecting rod is arranged in sliding mode at the bottom of the main body.

[0012] Further, the connecting part further comprises a connecting piece.

[0013] The connecting piece is provided with a round hole; the connecting piece is fixedly arranged at the bottom of the main body; and the lower connecting rod is arranged in sliding mode in the connecting piece.

[0014] Further, the connecting part further comprises a connecting piece.

[0015] The connecting piece is provided with a round hole; the connecting piece is fixedly arranged at the bottom of the main body; and the lower connecting rod is arranged in sliding mode in the connecting piece.

[0016] Compared with the prior art, the device has the following beneficial effects:

[0017] 1. In the device, the pull claw and the top rod are arranged, the axial movement of the spring and the top rod is converted into the radial clamping movement of the pull claw by inserting the core-pulling screw into the sleeve on the main body, a self-centering clamping mechanism is formed, the core-pulling screw is clamped, the clamping force can be adjusted by replacing springs of different specifications, and then the core-pulling screw can be quickly clamped.

[0018] 2. In the device, the connecting piece and the fixing piece are arranged, the connecting piece is arranged at the bottom of the main body, the fixing piece is connected with the connecting piece in plug-in mode, when in use, the connecting piece and the fixing piece are connected in plug-in mode, the pressing piece is pressed downward, the spring is compressed, the plug is separated from the pressing piece, the plug is restored to the initial position through the spring reset, the connecting piece is completely inserted into the fixing piece, the pressing piece is released, the spherical protrusion on the plug is in contact with the inner wall of the pressing piece, the plug is inserted into the round hole in the connecting piece, and quick connection is completed, the fixing piece can be connected with the rivet gun through threads, and the 90° turning structure of the pull head solves the riveting problem in a narrow space. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall three-dimensional structure schematic diagram of the device.

[0020] Figure 2 It is the local exploded three-dimensional structure schematic diagram of the device.

[0021] Figure 3 It is the exploded three-dimensional structure schematic diagram of the installation part and the fixing part of the device.

[0022] Figure 4 is a fixed part of the utility model three-dimensional structure schematic diagram.

[0023] In the drawing, the correspondence between the component name and the drawing number is:

[0024] 1, installation part;101, main body;102, pull claw;103, top rod;104, mandrel;105, upper connecting rod;106, link piece A;107, middle connecting rod;108, link piece B;2, connecting part;201, lower connecting rod;202, connecting piece;3, fixed part;301, fixing piece;302, pressing piece;303, plug-in component. Specific implementation

[0025] The embodiment of the utility model is further described in detail below in combination with the drawings and examples.

[0026] Example:

[0027] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0028] The utility model provides a pull head, including installation part 1, connecting part 2 and fixed part 3;

[0029] Installation part 1 bottom is provided with connecting part 2;Fixed part 3 is connected with connecting part 2;

[0030] Installation part 1 includes: main body 101, is provided with sleeve on main body 101;Main body 101 is designed as 90 ° steering structure, has solved the riveting problem of narrow space;The sleeve inside main body 101 is provided with pull claw 102;Pull claw 102 is connected with top rod 103;Top rod 103 is connected with mandrel 104 through spring;Mandrel 104 is set on upper connecting rod 105 through rubber ring;Upper connecting rod 105 is connected with link piece A 106;Upper connecting rod 105 is connected with main body 101;Link piece A 106 is connected with middle connecting rod 107;Middle connecting rod 107 is connected with main body 101;The bottom of middle connecting rod 107 is connected with link piece B 108;The main body 101 here is used to install pull claw 102 through the sleeve inside setting;By inserting the core screw into the sleeve inside main body 101, the axial movement of spring and top rod 103 is converted into the radial clamping movement of pull claw 102, forms self-centering type clamping mechanism, is suitable for the clamping of core screw, and the clamping force can be adjusted by replacing different specifications of spring, and then the core screw can be clamped quickly;And upper connecting rod 105 is connected with link piece A 106, link piece A 106 is connected with middle connecting rod 107, and the bottom of middle connecting rod 107 is connected with link piece B 108, so as to drive transmission through lower connecting rod 201, so as to drive mandrel 104 to move.

[0031] Among them, as Figure 2As shown, a nut is provided inside the main body 101; the pull claws 102 are configured in two sets, upper and lower.

[0032] Among them, such as Figure 2 As shown, the connecting part 2 includes: a lower connecting rod 201; the top of the lower connecting rod 201 is configured with a U-shaped structure; the lower connecting rod 201 is disposed at the bottom of the connecting piece B108; the lower connecting rod 201 is slidably disposed at the bottom of the main body 101; the lower connecting rod 201 here is used to extend and retract pneumatically by means of an external riveting gun.

[0033] Among them, such as Figure 2 As shown, the connecting part 2 also includes: a connector 202; a circular hole is provided on the connector 202; the connector 202 is fixedly installed at the bottom of the main body 101; a lower connecting rod 201 is slidably installed inside the connector 202; the connector 202 here is used to complete the connection between the connector 202 and the fixing member 301 by inserting the plug 303.

[0034] Among them, such as Figure 4 As shown, the fixing part 3 includes: a fixing member 301, a pressing member 302, and a plug 303; the fixing member 301 has a threaded bottom; the fixing member 301 is slidably connected to the connecting member 202; the fixing member 301 has a circular hole; the fixing member 301 has an annular protrusion; the bottom of the pressing member 302 is connected to the annular protrusion on the fixing member 301 by a spring; the upper and lower sides of the inner wall of the pressing member 302 are inclined; the plug 303 is cylindrical; the plug 303 has a spherical protrusion; the plug 303 is slidably installed inside the circular hole on the fixing member 301; the plug 303 is connected to the fixing member 301 by a spring; the spherical surface of the plug 303 contacts the inner wall of the pressing member 302; the plug 303 is inserted into the connecting member 202. Inside the round hole on 2; by inserting the connector 202 and the fixing member 301 together, by pressing down the pressing member 302, the pressing member 302 is compressed, and the plug 303 is disengaged from the pressing member 302. The plug 303 returns to its initial position through the spring's reset action. After the connector 202 is fully inserted into the fixing member 301, by releasing the pressing member 302, the inner wall of the pressing member 302 contacts the spherical protrusion on the plug 303, thereby driving the plug 303 to be inserted into the round hole on the connector 202, thus completing the quick connection and disassembly. The thread provided at the bottom of the fixing member 301 can be connected to the rivet gun for a long time without frequent disassembly. Only the connection between the connector 202 and the fixing member 301 needs to be disassembled.

[0035] The specific usage and function of this embodiment are as follows:

[0036] In the utility model, when the device is used, the core-pulling screw is inserted into the sleeve on the main body 101, the axial movement of the spring and the jacking rod 103 is converted into the radial clamping movement of the pull claw 102, a self-centering clamping mechanism is formed, the core-pulling screw is clamped, the core-pulling screw can be clamped quickly, the fixing part 301 is connected with the rivet gun through threads, the connecting part 202 and the fixing part 301 are connected through plug-in connection, the pressing part 302 is pressed downward, the spring is compressed, the plug-in part 303 is separated from the pressing part 302, and the plug-in part 303 is restored to the initial position through the spring reset, the connecting part 202 is completely inserted into the fixing part 301, the pressing part 302 is loosened, the spherical protrusion on the plug-in part 303 is in contact with the inner wall of the pressing part 302, the plug-in part 303 is inserted into the circular hole on the connecting part 202, and quick connection is completed, the lower connecting rod 201 is driven to move up and down through the rivet gun, the middle connecting rod 107, the link piece A 106 and the upper connecting rod 105 are driven to transmit through the link piece B 108, the mandrel 104 is driven to move, the core-pulling screw is inserted into the inner hole, the rivet rod of the rivet gun is continuously pulled, the cutting ring is cut, the rivet rod and the lock ring continue to move, the lock ring is deformed after being pressed by the top piece, the rivet sleeve end head groove is filled, the rivet rod and the rivet sleeve are completely locked together, the rivet rod is pulled off at the rivet sleeve head plane, and riveting is completed.

Claims

1. A slider, characterized by: It comprises an installation part (1), a connecting part (2) and a fixing part (3); The bottom of the installation part (1) is provided with the connecting part (2); the fixing part (3) is connected with the connecting part (2); The installation part (1) comprises a main body (101), a sleeve is arranged on the main body (101), a pull claw (102) is arranged inside the sleeve of the main body (101), the pull claw (102) is connected with a top rod (103), the top rod (103) is connected with a mandrel (104) through a spring, the mandrel (104) is arranged on an upper connecting rod (105) through a rubber ring, the upper connecting rod (105) is connected with a link piece A (106), the upper connecting rod (105) is connected with the main body (101), the link piece A (106) is connected with a middle connecting rod (107), the middle connecting rod (107) is connected with the main body (101), and the bottom of the middle connecting rod (107) is connected with a link piece B (108).

2. The puller of claim 1, wherein: The main body (101) is internally provided with a nut; the pull claw (102) is arranged in two groups from top to bottom.

3. The puller of claim 1, wherein: The connecting part (2) comprises a lower connecting rod (201); The top of the lower connecting rod (201) is arranged in a U-shaped structure; the lower connecting rod (201) is arranged at the bottom of the link piece B (108); and the lower connecting rod (201) is slidingly arranged at the bottom of the main body (101).

4. The puller of claim 3, wherein: The connecting part (2) further comprises a connecting piece (202); The connecting piece (202) is provided with a circular hole; the connecting piece (202) is fixedly arranged at the bottom of the main body (101); and the lower connecting rod (201) is slidingly installed inside the connecting piece (202).

5. The puller of claim 4, wherein: The fixing part (3) comprises a fixing piece (301), a pressing piece (302) and an insert (303); The bottom of the fixing piece (301) is provided with a thread; the fixing piece (301) is slidingly connected with the connecting piece (202); the fixing piece (301) is provided with a circular hole and a circular annular protrusion; the bottom of the pressing piece (302) is connected with the circular annular protrusion on the fixing piece (301) through a spring; the inner wall of the pressing piece (302) is arranged in an inclined structure from top to bottom; the insert (303) is arranged in a cylindrical structure; the insert (303) is provided with a spherical protrusion; the insert (303) is slidingly installed inside the circular hole on the fixing piece (301); the insert (303) is connected with the fixing piece (301) through a spring; the spherical surface of the insert (303) is in contact with the inner wall of the pressing piece (302); and the insert (303) is inserted into the circular hole on the connecting piece (202).

Images