CN213092931U - Insulating sheath for assembling tool - Google Patents

Abstract

The invention provides an insulating sheath for an assembling tool, which comprises an insulating sheath body matched with the tool body, wherein the body of an upper and lower split structure comprises an upper sheath and a lower sheath, the upper sheath and the lower sheath form a clamping groove fit at the combined part, and are partially combined in a nested manner; the body of the left and right split structure comprises a left sheath and a right sheath, a clamping groove is formed at the combined position for matching, and the left sheath and the right sheath are combined in a partially nested manner, at least one group of grooves are arranged on the peripheries of the left sheath and the right sheath, and clamping rings are installed in the grooves. The utility model discloses an applicable pipe diameter variation in size of insulating sheath, straight-bar, dysmorphism and the instrument that has arbitrary bent angle can recover by 100% basically to the design that the local region bump of casing inner wall was prevented following the commentaries on classics, and peak cost is about 60% of milling the mode cost, and the molding is complicated more moreover, and the cost advantage of traditional mode is showing more relatively.

Description

Insulating sheath for assembling tool

Technical Field

The invention relates to the technical field of assembling tools, in particular to an insulating sheath for an assembling tool.

Background

The assembling tool such as a screwdriver head, a sleeve, a connecting rod, a universal joint, an eccentric gear and the like is used for connecting a driving end of a tightening tool (such as a torque wrench, a pneumatic wrench, an electronic torque wrench and the like) and a stressed workpiece, so that the torque is transmitted from the driving end of the tightening tool to the workpiece end through the tool, and meanwhile, the efficient utilization and accurate transmission of the tightening quality are ensured. The sleeve is short for the socket wrench. The sleeve is commonly called as a sleeve because the sleeve is sleeved on various wrenches and is in a cylindrical shape, and is a common tool for production, maintenance and life. The socket wrench is composed of a plurality of sockets with hexagonal holes or dodecagonal holes, a handle, a connecting rod and other accessories, and is particularly suitable for screwing bolts or nuts with very narrow space or very deep recesses. A screwdriver bit is generally a screwdriver bit mounted on a tool such as an electric drill or an electric wrench for screwing a screw. The batch heads can be classified into a straight line, a cross, a Chinese character 'mi', a star shape, a square head, a hexagonal head, a Y-shaped head and the like according to different head types, wherein the straight line and the cross are the most commonly used in assembly.

The design and processing of these assembly tools, in order to ensure good rigidity, toughness and economy, various steels are usually used, such as chrome vanadium steel, chrome molybdenum steel, 45 carbon steel, etc., but these materials and design schemes also create new problems while performing the tightening function, namely, the tightening process under certain specific environments, such as tightening in narrow space, has the problem that the tool abrades the non-assembly area or the smooth surface of the workpiece during the tightening process, causing quality problems; even these metal tools can contact nearby charged areas, resulting in serious accidents such as short circuit, especially in new energy industries and electronic and power industries.

In response to the above problems, it is common practice in the industry to sleeve a thin-walled hard shell (e.g., polyethylene) or plastic package of thermoplastic material on the non-working area of these tools, and thin-walled outer shells of thermoplastic material are most commonly used, as shown in fig. 1. Wherein reference numeral 1 is a straight header and reference numeral 2 denotes an insulating housing.

For a thin-walled housing of thermoplastic material (e.g. polyethylene), additional tool injection molding or machining with a conventional machine tool can be used. Considering that the market has numerous brands of sleeves and batch heads, the difference on the design scheme is large, and in order to reduce the processing cost, the market basically adopts the traditional material reduction processing mode to manufacture, namely, a thermoplastic material (such as polyethylene) round bar is selected, cutting is carried out according to 1.1-1.3 times of the axial design length of a shell, segmentation is carried out, then the round bar is loaded on a numerical control milling machine, the milling cutter rotates into main motion, the feeding motion of a workbench or a milling head is supplemented to carry out inner hole processing on the bar, the inner cavity of the bar is gradually hollowed out through multiple feeding milling (about 5% of the radius of the bar every time), only a thin-wall shell (the thickness is about 0.5mm-1.0mm) is reserved, then a hole (about phi 3 mm) is drilled at the end part of the thin-wall shell, clamping balls on a tool can be embedded into the hole of the thin-wall shell.

However, the rejection rate generated in the manufacturing process is relatively high (20%), the utilization rate of materials is very low (0.1% -3%), the larger the outer diameter of the tool is, the lower the material utilization rate of the bar is, the longer the delivery period is (a single tube can only be processed by a single machine, for example, the length of a 20cm shell is taken as an example, the working hour is about 1.5h), and the higher processing level requirements are provided for operators and machine tool operation. Therefore, in order to ensure that the shell can be normally assembled and disassembled from the sleeve or the extension rod tool, the thin-wall shell realized by the machining mode is only suitable for a tightening tool with a straight rod structure, and as shown in fig. 2, production and assembly cannot be realized for an elbow tool 3 with a bent angle or a structure with a complex structural surface.

Disclosure of Invention

The invention aims to provide an insulating sheath for an assembling tool, which comprises an insulating sheath body matched with a tool body, wherein a cavity for accommodating the assembling tool is formed in the insulating sheath body, and the insulating sheath body adopts a structure of an upper split body and a lower split body or a left split body and a right split body, wherein:

the upper and lower split structure comprises an upper sheath and a lower sheath, wherein the upper sheath and the lower sheath form a clamping groove at the combined part and are partially combined in a nested manner, at least one group of grooves are arranged on the peripheries of the upper sheath and the lower sheath on the same section, and a clamping ring is removably mounted in each group of grooves;

the left and right split structure comprises a left sheath and a right sheath, the left sheath and the right sheath are matched with each other at the combined position in a clamping groove mode and are combined partially in a nested mode, at least one group of grooves are formed in the peripheries of the left sheath and the right sheath on the same cross section, and clamping rings are removably mounted in each group of grooves.

Preferably, the assembling tool is one of a screwdriver head, a sleeve, a connecting rod, a universal joint and an eccentric gear.

Preferably, a clamp is further arranged on the insulating sheath body of the left-right split structure after the left sheath and the right sheath are nested and combined, and the left sheath and the right sheath are secondarily fixed.

Preferably, the size of the nesting combination position of the upper sheath and the lower sheath and the nesting combination position of the left sheath and the right sheath is less than 1 mm.

Preferably, the collar is a C-shaped resilient collar.

Preferably, the insulating sheath body is a polyethylene plastic part, an ABS plastic part or a nylon plastic part.

Preferably, the insulating sheath body is formed by SLA photocuring printing.

By the above technical scheme the utility model discloses a it is visible, the utility model discloses an assembly tool is with the applicable pipe diameter variation in size of insulating sheath, straight-bar, dysmorphism and the product that has arbitrary bent angle, disposable shipment, the cost is insensitive to product molding, prevents to the design that shell inner wall local region bump was followed and is changeed and can realize 100% basically and recover, and peak cost is about 60% of milling mode cost, and the molding is complicated more moreover, and the cost advantage of traditional mode is showing more relatively.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a polyethylene casing disposed outside a non-working area of a line-type batch head;

FIG. 2 is a schematic outer profile view of a corner fitting tool;

FIG. 3 is a schematic view of an in-line batch head peripheral insulating sheath according to an exemplary embodiment of the present invention;

FIG. 4 is a schematic view of an insulating sheath for a corner tool according to an exemplary embodiment of the present invention, wherein the insulating sheath is constructed in a split configuration;

figure 5 is a schematic view of another insulating sheath for a corner tool according to an exemplary embodiment of the present invention, wherein the insulating sheath is in a split left and right configuration.

Reference numerals: the straight screwdriver head 1, the insulating shell 2, the elbow 3, the left sheath 4, the right sheath 5, the upper sheath 6, the lower sheath 7, the clamping groove 101, the clamping ring 102 and the clamp 103.

Detailed Description

In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.

Referring to fig. 3-5, according to an exemplary embodiment of the present invention, in order to solve the problems of manufacturing and adapting of the insulating sheath for the existing assembly tool, especially the problems of manufacturing process and cost and adapting to complicated tools such as a bending head, an insulating sheath structure with a split design is proposed, in which the assembly tool is a screwdriver head, a sleeve, a connecting rod, a universal joint, an eccentric gear or other tools suitable for adapting and connecting a driving end of a tightening tool (such as a torque wrench, a pneumatic wrench, an electronic torque wrench, etc.) for torque transmission.

The insulating sheath for an assembly tool of the example shown in connection with fig. 3 to 5 comprises an insulating sheath body fitted to the tool body, the insulating sheath body forming inside a cavity housing the assembly tool.

The insulating sheath body adopts an up-down split structure, as shown in fig. 4; or a left-right split structure as shown in fig. 5.

The upper and lower split structure comprises an upper sheath 6 and a lower sheath 7, the upper sheath 6 and the lower sheath 7 form a clamping groove at the combined part for matching, and the upper sheath 6 and the lower sheath 7 are partially combined in a nested manner at the position of the clamping groove by combining a clamping groove 101 in fig. 4, so that basic positioning and splicing are realized.

At least one set of grooves is provided on the periphery of the upper and lower sheaths 6, 7 at the same cross-section, in each of which a collar 102 is removably mounted. The collar is particularly preferably a C-shaped elastic collar, and the upper sheath and the lower sheath are secondarily fixed through the C-shaped elastic collar.

In alternative embodiments, the insulating sheath body is a polyethylene plastic part, an ABS plastic part, or a nylon plastic part.

In an alternative embodiment, the insulating sheath body can be formed by SLA photocuring printing. For example, in the preparation of printing the upper sheath and the lower sheath by using an SLA photocuring printing mode, a photosensitive resin material (such as UV9400 series and Lasty-R series resin), an ABS material, a nylon material and the like with balanced rigidity and toughness indexes are selected, a laser spot with controllable irradiation area and power is used for irradiating the liquid resin liquid level to perform layer-by-layer curing of a target area, the selection of a laser irradiation area is performed by using the accurate displacement of a servo motor, the power of a solid printing laser is usually selected from about 0.5W to 3W, the power of a supporting structure (if any) printing laser is usually selected from 0.2W to 1W, the scanning layering thickness is less than 0.10mm, the profile scanning rate is controlled at 2000-6000mm/s, and the printing size precision is controlled at about 0.05 mm.

Meanwhile, the design of the upper and lower sheaths aiming at the non-straight rod tool (such as bending at various angles) is met. SLA photocuring prints the machining precision itself and allows thin-walled shell to have buckle or groove structure promptly, is equivalent to thin-walled shell and cuts open from the centre, and two parted casings are aligned through the slot structure of additional design in junction, and the rethread recess is fixed with the rand for the secondary.

In another embodiment, the left and right split structure of the insulating sheath body comprises a left sheath 4 and a right sheath 5, as shown in fig. 5, the left sheath 4 and the right sheath 5 form a clamping groove fit at the joint part and are combined in a partially nested manner, at least one set of grooves is arranged on the periphery of the left sheath 4 and the right sheath 5 on the same section, and a clamping ring is removably installed in each set of grooves. Wherein, the collar is similar to the upper and lower split structure, preferably adopts a C-shaped elastic collar, and the left sheath and the right sheath are secondarily fixed through the C-shaped elastic collar.

Preferably, a hoop 103 is further arranged on the insulating sheath body of the left-right split structure after the left sheath 4 and the right sheath 5 are nested and combined, corresponding annular grooves can be arranged at corresponding positions on the insulating sheath body, and the left sheath and the right sheath are secondarily fixed through the hoop.

Preferably, the size of the nesting combination position of the upper sheath and the lower sheath and the nesting combination position of the left sheath and the right sheath is less than 1 mm.

From this, the utility model provides an insulating sheath does benefit to the preparation shaping of earlier stage through split type structure, for example adopts SLA photocuring technology preparation, hardly need any extra bearing structure, is close 100% to photosensitive resin's utilization ratio, and to the accurate control of product size, the wall thickness sets up wantonly, and interior cavity surface does not have any tool mark and cutting impurity. The earlier stage part of making no matter is about the components of a whole that can function independently or components of a whole that can function independently from each other from top to bottom, all realizes basic block through the draw-in groove, plays basic location and combines, realizes fixed design through the buckle, can also realize further secondary through the clamp and fix, can conveniently, correctly install and demolish.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims (7)

1. The utility model provides an insulating sheath for erecting tool which characterized in that, is including the insulating sheath body of adaptation to tool body, and the inside cavity that holds erecting tool that forms of insulating sheath body, the insulating sheath body adopts upper and lower components of a whole that can function independently or controls the components of a whole that can function independently structure, wherein:

the upper and lower split structure comprises an upper sheath and a lower sheath, wherein the upper sheath and the lower sheath form a clamping groove at the combined part and are partially combined in a nested manner, at least one group of grooves are arranged on the peripheries of the upper sheath and the lower sheath on the same section, and a clamping ring is removably mounted in each group of grooves;

the left and right split structure comprises a left sheath and a right sheath, the left sheath and the right sheath are matched with each other at the combined position in a clamping groove mode and are combined partially in a nested mode, at least one group of grooves are formed in the peripheries of the left sheath and the right sheath on the same cross section, and clamping rings are removably mounted in each group of grooves.

2. The insulating sheath for an assembly tool according to claim 1, wherein the assembly tool is one of a screwdriver bit, a sleeve, a connecting rod, a universal joint and an eccentric gear, in particular an elbow tool.

3. The insulating sheath for the assembling tool according to claim 1, wherein a clamp is further provided on the insulating sheath body of the left and right split structure after the left sheath and the right sheath are nested and combined, so as to fix the left sheath and the right sheath for a second time.

4. The insulating sheath for an assembly tool according to claim 1, wherein the size of the nested combination position of the upper sheath and the lower sheath and the nested combination position of the left sheath and the right sheath is less than 1 mm.

5. The insulating sheath for an assembly tool of claim 1, wherein the collar is a C-shaped resilient collar.

6. The insulating sheath for the assembly tool as claimed in claim 1, wherein the insulating sheath body is a polyethylene plastic part, an ABS plastic part or a nylon plastic part.

7. The insulating sheath for an assembly tool of claim 1, wherein the insulating sheath body is formed by SLA photocuring printing.

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