CN210939023U

CN210939023U - Gun head device

Info

Publication number: CN210939023U
Application number: CN201921882197.0U
Authority: CN
Inventors: 施天寅
Original assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Current assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-07
Anticipated expiration: 2029-11-04

Abstract

The utility model provides a gun head device, include: the gun rod comprises a rod body, and a disassembling part for disassembling a fastener is arranged at one end of the rod body; and the adsorption part is used for adsorbing the fastener and is arranged on the gun rod. Through setting up barral of a gun and absorption portion, absorption portion adsorbs the fastener to fix in the dismantlement portion of barral of a gun, and when dismouting fastener, multiplicable rifle head is to the adsorption affinity of fastener, avoids among the prior art rifle head from taking the problem that the magnetic adsorption affinity is not enough to lead to the fastener to drop, guarantees the normal clear of production beat, improves production efficiency, simple structure moreover, convenient to use.

Description

Gun head device

Technical Field

The utility model relates to a mechanical installation technical field especially relates to a rifle head device.

Background

In an automobile assembly line, the most common assembly process is bolting. When a worker fastens a fastener of the inner driving head by using an air gun or an electric gun, the screw often falls off due to insufficient magnetic adsorption force of the gun head. Because the installation time beat of every station of automobile assembling line is very fast, frequently take place the screw and drop and can seriously influence normal production beat, reduction in production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gun head device to solve the technical problem.

The utility model provides a gun head device, include: the gun rod comprises a rod body, and a disassembling part for disassembling a fastener is arranged at one end of the rod body; and the adsorption part is used for adsorbing the fastener and is arranged on the gun rod.

Furthermore, a first through hole is formed in the adsorption part, and the rod body is nested in the first through hole.

Further, still include the interval portion that is used for weakening magnetism, interval portion sets up between dismantlement portion and absorption portion, second through-hole has been seted up to interval portion, the pole body nestification is in the second through-hole.

Further, the adsorption part and the spacing part are both cylinders, the first through hole is coaxial with the adsorption part, and the second through hole is coaxial with the spacing part.

Furthermore, a concave part attached to the head of the fastener is arranged on the side, facing the fastener, of the spacing part.

Furthermore, the inner surface of the concave part is provided with a wrapping layer.

Furthermore, the thickness of the wrapping layer is smaller than 1mm, and the wrapping layer is made of resin materials.

Further, inner linings are arranged in the first through hole and the second through hole, and the rod body is in interference fit with the inner linings.

Further, the adsorption part is glued with the spacing part.

Furthermore, the adsorption part is a magnet, and the spacing part is made of low-carbon steel.

The utility model provides a rifle head device is through setting up barral of a gun and adsorption portion, and adsorption portion adsorbs the fastener to fix in the dismantlement portion of barral of a gun, and when the dismouting fastener, multiplicable rifle head is from taking the not enough problem that leads to the fastener to drop of magnetic adsorption power to the adsorption power of fastener, avoids among the prior art rifle head, guarantees the normal clear of production beat, improves production efficiency, simple structure moreover, convenient to use.

Drawings

The objects and advantages of the present invention will be understood from the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a partial cross-sectional view of a lance head apparatus according to an embodiment of the present invention in operation;

fig. 2 is a schematic view of a connection structure between the adsorption part and the spacer according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Fig. 1 is a cross-sectional view of a gun head device according to an embodiment of the present invention during operation, and fig. 2 is a schematic view of a connection structure between an adsorption portion and a spacer according to an embodiment of the present invention. As shown in fig. 1 and 2, the present invention provides a lance head apparatus 1, including: the gun rod comprises a rod body 11, and a disassembling part for disassembling the fastener 2 is arranged at one end of the rod body 11. And an adsorption part 12 for adsorbing the fastener 2, wherein the adsorption part 12 is arranged on the gun rod.

The fastener 2 may be a bolt, a self-tapping screw, or the like. The removal portion is a tool for removing the mounting fastener 2. The gun head may be an air gun head, an electric gun head or a screw driver head as known in the art. The detachable part can be in the shape of plum blossom, cross, Chinese character mi, etc.

When the tip device 1 is used and the fastening member 2 is attached, the fastening member 2 is inserted into the detaching portion, and the fastening member 2 does not fall off from the detaching portion due to the suction action of the suction portion 12, thereby fixing the fastening member 2 at a predetermined position.

When the fastening member 2 is detached from the predetermined position, the detached fastening member 2 is attracted to the detaching portion due to the attraction portion 12, and the fastening member 2 is prevented from dropping.

Furthermore, a first through hole is formed in the adsorption part 12, the rod body 11 is nested in the first through hole, so that the adsorption part 12 can be conveniently assembled, the adsorption force can be increased in the circumferential direction of the gun rod, and the adsorption effect is improved.

Further, as shown in fig. 2, the lance tip device 1 further includes a spacer 13 for weakening magnetism, and the spacer 13 is disposed between the detaching portion and the adsorbing portion 12.

Through setting up spacing portion 13, can effectively avoid the direct contact of adsorption part 12 and fastener 2, reduce the adsorption affinity of 12 relative fasteners 2 of adsorption part in rifle head device 1, prevent that the adsorption affinity of adsorption part 12 is too big, and after fastener 2 was dismantled in the installation, rifle head device 1 did not well part with fastener 2.

Furthermore, a second through hole is formed in the spacing part 13, and the rod body 11 is nested in the second through hole so as to facilitate installation of the spacing part 13.

Furthermore, the side of the spacer 13 facing the fastener 2 is provided with a recess 14 which abuts the fastener head 2.

The inner surface of the recess 14 and the outer surface of the head of the fastener 2 are in full abutment, changing the point contact of the removal portion and the fastener 2 in the conventional technique to surface contact. This increases the area of contact of the gun shaft with the fastener 2, thereby increasing the suction force of the gun shaft to the fastener 2 and reducing the risk of the fastener 2 falling from the detaching part in the mounting and detaching process.

Further, the inner surface of the recess 14 is provided with a wrapping layer. The surface of the spacing part 13 completely attached to the head of the fastener 2 is coated with a coating layer, so that the coating layer of the head of the fastener 2 is prevented from being abraded and damaged during loading and unloading.

Further, the thickness of the wrapping layer is smaller than 1mm, and the wrapping layer is made of a resin material. The resin material has certain wear resistance and lubricity, and meanwhile, the thickness of the coating layer is smaller than 1mm, so that the adsorption force is not obviously reduced.

In this embodiment, the material of the wrapping layer is a POM (polyoxymethylene) resin material.

Further, an inner bushing 15 is arranged in each of the first through hole and the second through hole, and the rod body 11 is in interference fit with the inner bushing 15.

The shaft 11 is connected to the suction part 12 and the partition part 13 through an inner bush 15 through a first through hole and a second through hole.

The shaft 11 is tightly connected with the absorption part 12 and the spacing part 13 through interference fit, and the absorption part 12 and/or the spacing part 13 are prevented from loosening and falling on the shaft 11.

In this embodiment, the inner diameters of the first through hole and the second through hole are the same, so as to facilitate the manufacture of the inner liner 15.

Preferably, the material of the inner liner 15 may be EPDM (Ethylene propylene diene Monomer) foam, which not only has certain flexibility to realize interference fit, but also has relatively large friction force to enable the positions of the spacing portion 13 and the adsorbing portion 12 to be manually adjusted up and down on the premise that the adsorbing portion 12 and the spacing portion 13 do not loosen and fall off on the shaft 11.

Further, the absorption part 12 is glued to the spacing part 13, so that the absorption part 12 and the spacing part 13 can be conveniently connected. The suction portion 12 and the spacer 13 may be connected together at the time of shipment.

Preferably, the adsorption part 12 and the spacing part 13 are both cylinders, the first through hole is coaxial with the adsorption part 12, the second through hole is coaxial with the spacing part 13, so that the adsorption force of the adsorption part 12 on the fastener 2 can be uniformly distributed along the fastener 2, the fastener 2 is coaxial with the shaft 11, the deviation of the fastener 2 during installation is avoided, and the installation efficiency of the fastener 2 is improved. In the embodiment of fig. 2, the outer diameter of the suction part 12 is the same as the outer diameter of the spacer part 13.

In one embodiment, the absorption portion 12 may be a magnet, and the spacer 13 may be made of mild steel, so as to reduce production cost. The low-carbon steel is carbon steel with the carbon content of less than 0.25 percent.

The magnet is made of permanent magnet material. The permanent magnetic material can be an aluminum-nickel-cobalt permanent magnetic alloy, an iron-chromium-cobalt permanent magnetic alloy, a permanent magnetic ferrite, a rare earth permanent magnetic material or a composite permanent magnetic material and the like. The spacer may be machined from plain mild steel.

In other embodiments of the present invention, the adsorption part 12 may also adopt an electromagnet, and a power supply switch of the electromagnet is disposed at the other end of the rod body.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A lance tip apparatus, comprising:

the gun rod comprises a rod body, and a disassembling part for disassembling a fastener is arranged at one end of the rod body;

and the adsorption part is used for adsorbing the fastener and is arranged on the gun rod.

2. The lance tip device of claim 1, wherein the adsorption part is provided with a first through hole, and the lance body is nested in the first through hole.

3. The lance head device according to claim 2, further comprising a spacer for reducing magnetism, the spacer being disposed between the detaching portion and the adsorbing portion, the spacer being provided with a second through hole, and the lance body being nested in the second through hole.

4. A lance head apparatus according to claim 3, wherein the adsorbing portion and the spacing portion are cylindrical, the first through-hole is coaxial with the adsorbing portion, and the second through-hole is coaxial with the spacing portion.

5. A lance head apparatus according to claim 3, wherein the side of the spacer portion facing the fastener is provided with a recess for engaging the head of the fastener.

6. A lance head apparatus according to claim 5, wherein the inner surface of the recess is provided with a coating.

7. The lance tip device of claim 6, wherein the thickness of the coating is less than 1mm, and the coating is made of a resin material.

8. The lance tip device of claim 4, wherein an inner bushing is disposed in each of the first through hole and the second through hole, and the lance body is in interference fit with the inner bushing.

9. A lance head apparatus according to any one of claims 3 to 8, wherein the sorption part is glued to the spacer.

10. The lance tip device according to claim 9, wherein the attracting portion is a magnet and the spacer portion is made of mild steel.