CZ28701U1 - Optional equipment for assembling tool - Google Patents

Abstract

The optional equipment for assembling tool is to be arranged on the working part of the bit to cover it and to inhibit it from slipping off the means, such as screwhead, to be mounted. The equipment contains a hollow shaft (1) having two gradually created extending fittings, the greater one (11) and the smaller one (12). On the hollow shaft (1), at least one compressive spring (2) is arranged and at least one hollow cover (3) is mounted. The inner surface of the cover (3) is equipped with at least one inner reduction (31), wherein the compressive spring (2) is arranged between the first annular surface of this reduction (31) and the smaller extending fitting ( 12) of the hollow shaft (1). The opposite annular surface of the inner reduction (31) at least partly bears on the lock ring (4) arranged on the hollow shaft (1).

Description

Technical field

The technical solution relates to an add-on device for a mounting tool for fast and error-free assembly of the fasteners to the assembly of components and assemblies.

BACKGROUND OF THE INVENTION

Pneumatic drills, pneumatic screwdrivers, cordless screwdrivers, cordless drills and other type-identical tools are nowadays used in industrial processes for assembly and disassembly of dismountable connections, especially screw connections. The advantage of these tools is their ease of operation, quick assembly and disassembly, and the plethora of interchangeable screwdriver bits with different end cross-sections for mounting screws with different slot in the head, eg using a cross bit for screws with cross slot. In the case of industrial current mounting, where these tools are used across the board, fast screwing or fastening of the fastener to the required location is required. And the pressure to perform the operation in the shortest possible time poses the risk of incorrectly inserting the bit into the groove in the head of the fastener, resulting in the bit slipping out of the groove in the screw head. The bit then slides over the surface of the material and may scratch the surface of the assembled object. This is a frequent phenomenon in the automotive industry, where certain parts are mounted on the assembly line and if the surface is damaged, such as a painted car door, it must be repaired, which of course is economically and time-consuming. At present there is no such solution available that would significantly reduce scrap rate in a simple and fast way due to defects on the surface of assembled parts.

The essence of the technical solution

The disadvantage of the present invention is to eliminate the disadvantage of an additional tool for the assembly tool, which is arranged on the working part of the bit and covers the working part, and has a hollow shaft which is terminated at one end by a stepped step. and more. This larger shoulder is adjoined by a smaller shoulder. At the other end of the hollow shaft, at least one snap ring groove is provided on its outer periphery. At least one compression spring is mounted on the hollow shaft. The inner diameter of the compression spring is larger than the diameter of the hollow shaft, while the outer diameter of the compression spring is smaller than the diameter of the smaller shoulder with which one end is in contact. In a preferred embodiment, the compression spring encircles the hollow shaft so as to allow free movement, compression and backward expansion of the compression spring over the surface of the hollow shaft. At least one hollow roller is mounted on the hollow shaft together with the compression spring, the inner diameter of which is larger than the outer diameter of the compression spring and at the same time its outer diameter is smaller than the diameter of the larger shoulder. The inner shell of the hollow roller is provided with at least one inner shoulder. The diameter of the hollow roller shoulder is smaller than the outer diameter of the hollow shaft. One face of the inner shoulder is in contact with the other end of the compression spring and the other face of the inner ring is in contact with the snap ring. In a preferred embodiment, the hollow roller surrounds the hollow shaft with a compression spring such that the hollow roller is allowed to move freely within a range defined by the distance between the larger shoulder of the hollow shaft and the retaining ring. A compression spring is arranged between the smaller hollow shaft shoulder and the inner hollow roller shoulder.

Preferably, the inner bore of the hollow shaft is of circular projection and / or hexagonal.

It is expedient that the larger shoulder of the hollow shaft is provided with at least one through bore for receiving the tightening member. In a preferred embodiment, the through hole is threaded and the fasteners are screws.

It is also expedient that the hollow roller is provided with at least one metal magnetized o-ring.

-1 CZ 28701 U1

Clarification of drawings

Giant. 1 is a schematic representation of an additional device for a mounting tool, axonometric view

Giant. 2 is a front view of the attachment for the mounting tool;

Giant. 3 is a sectional view A-A showing the arrangement and constraints of the individual elements of the attachment for the mounting tool

Giant. 4 - detail A, illustration of the snap ring seating in the snap ring groove on the hollow shaft.

Example of technical solution implementation

According to the present invention, an additional device for an assembly tool, which is arranged on the working part of the bit and covers the working part, comprises a hollow shaft 1, which at its outer periphery terminates in a stepwise stepped shoulder 11, which is larger. Adjacent to this larger shoulder 11 is a smaller shoulder 12. At the other end of the hollow shaft 1, at least one groove 13 for the circlip 4 is arranged on its outer periphery. The circlip 4 is preferably a spaced circlip into the hole. At least one compression spring 2 is mounted on the hollow shaft 1. The inner diameter of the compression spring 2 is larger than the diameter of the hollow shaft 1, and the outer diameter of the compression spring 2 is smaller than the diameter of the smaller shoulder 12 with which one end is in contact, such that the end of the compression spring 2 abuts the surface of the larger shoulder 11. In a preferred embodiment, the compression spring 2 encircles the hollow shaft 1 so as to allow free movement, compression and backward expansion of the compression spring 2 over the surface of the hollow shaft 1..

The hollow shaft 1 together with the compression spring 2 is fitted with at least one hollow cylinder 3, the inner diameter of which is larger than the outer diameter of the compression spring 2 and at the same time the outer diameter is smaller than the larger shoulder 11. The inner shell of the hollow roller 3 is provided with at least one inner shoulder 31. One surface of the internal shoulder 31 is in contact with the other end of the compression spring 2 and the other surface of the internal shoulder is in contact with the retaining ring 4. In a preferred embodiment, the hollow roller 3 surrounds the hollow shaft 1 together with the compression spring 2 by the hollow roller 3 is allowed to move freely within the range defined by the distance between the larger shoulder 11 and the retaining ring 4. The compression spring 2 is arranged between the smaller shoulder 12 of the hollow shaft 1 and the inner shoulder 31 of the hollow roller 3.

The inner bore of the hollow shaft 1 in the preferred embodiment is arranged in a circular projection and / or is hexagonal. The selection of the cross-section depends on the type of bit used. The inner bore can have any cross-section depending on the mounting tool used.

The larger shoulder 11 of the hollow shaft 1 is provided with at least one through bore 5 for receiving the tightening component. In a preferred embodiment, two openings 11 are provided opposite each other in the larger shoulder 11. In a preferred embodiment, the through holes 5 are threaded and for threaded fasteners.

It is also expedient for the hollow cylinder 3 to be provided with at least one metal magnetized o-ring 6.

The attachment for the mounting tool is mounted on the mounting tool which is fastened in the screwing device. By means of a tightening element in a preferred embodiment by means of two screws, the attachment device for the mounting tool is fixedly fixed to the mounting tool. In a preferred embodiment, the mounting tool is a screw mounting bit that is mounted in an accumulator screwdriver. The length of the tool protector is preferably adapted to the length of the bit so that the working end of the bit is located and covered by an additional device for the mounting tool. The worker places the working part of the bit next to the screw or other part that he wants to assemble. Pressing the screw head down

The hollow roller 3 is pushed along the axis of the hollow shaft 1 by compressing the compression spring 2 and stops by a larger shoulder 11 of the hollow shaft 1. The working part of the bit will be ejected out of the auxiliary tool for mounting the screws. When the operator moves away from the screwing device, the compression spring 2 is released and thereby moves the hollow cylinder 3 in the axis of the hollow shaft 1 to a position that covers the working part of the bit. This position of the hollow roller 3 is defined by the location of the locking ring 4 on the hollow shaft 1.

This covering of the working part of the bit is useful for preventing damage to the assembled part, especially to prevent damage to the surface protection.

In case of accidental removal of the bit from the head of the part to be screwed, the bit 2 is inserted into the hollow cylinder 3 by means of a compression spring 2, thereby preventing the bit from slipping on the surface of the part to be assembled.

In a preferred embodiment, the end of the hollow roller 3, in the part which overlaps the working part of the bit, is fitted with a metal magnetized o-ring 6, for more precise fit of the bit into the head of the screwed part.

Industrial applicability

The add-on device for the assembly tool can be advantageously used for assembly work where a fast yet high quality design is required, so as not to damage the assembled parts or the prefabricated parts. This add-on assembly tool can be used primarily on assembly lines and jet assemblies, especially in the automotive industry.

Claims (5)

PROTECTION REQUIREMENTS An add-on device for an assembly tool for arrangement on a working portion of an assembly bit and covering said working portion, comprising a hollow shaft (1), characterized in that the hollow shaft (1) is terminated at one end at a staggered step by a larger shoulder (11) adjoining the smaller shoulder (12) and wherein at the other end of the hollow shaft (1) at least one groove (13) for the retaining ring (4) is arranged on its outer periphery, at least one compression spring (2) having an inside diameter greater than the diameter of the unpopped portion of the hollow shaft (1), the outside diameter of the compression spring (2) being smaller than the diameter of the smaller shoulder (12), which is one its end in contact, and at least one hollow roller (3), whose external The inner diameter is greater than the outer diameter of the compression spring (2) and its outer diameter is smaller than the diameter of the larger shoulder (11), the inner shell of the hollow roller (3) having at least one inner shoulder (31) whose diameter is smaller than the outer the diameter of the compression spring (2), wherein one surface of the internal shoulder (31) is in contact with the other end of the compression spring (2) and the other surface of the internal shoulder (31) is in contact with the retaining ring (4), the compression spring (2) is arranged between the smaller shoulder (12) of the hollow shaft (1) and the inner shoulder (31) of the hollow roller (3). An add-on device for an assembly tool according to claim 1, characterized in that the inner bore of the hollow shaft (1) is of circular projection. An add-on device for an assembly tool according to claim 1, characterized in that the inner bore of the hollow shaft (1) is hexagonal. Attachment for an assembly tool according to claim 1, characterized in that the larger shoulder (11) of the hollow shaft (1) is provided with at least one through bore (5) for receiving the tightening component. An add-on device for an assembly tool according to claim 1, characterized in that the hollow roller (3) is provided with at least one metal magnetized o-ring (6).