Guide mold hand tap

Abstract

To disclose a guide mold hand tap.SOLUTION: A guide mold hand tap according to an embodiment enables a process origin center to be easily obtained first and enables the obtained center to be continuously maintained during processing. While the problem related to obtaining the center first and continuous obtaining of the center as described above is solved, by enabling even one tap to be used as equipment consisting of three taps, manufacturing costs of the tap can be reduced, and also the number of processes can be reduced and the process speed can be improved.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The following examples relate to the art of guided hand taps. [Background technology]

[0002] Cutting threads using a hand tap is a very delicate task, and experience is required to use it well. A hand tap is a tap that is handled by hand, and a tap is a tool used to carve threads into female threads. It can be thought of as a tool that creates a screw hole. Thread cutting is generally also called thread cutting. Thread cutting requires very delicate work, and should be done carefully, such as the amount of force and the angle at which the tap is inserted. Otherwise, the tap will easily break and it will be difficult to remove. In addition to a tap bit and a tap handle, a drill and lubricant are also required for hand tapping. After drilling a hole, the tap bit is used to cut a thread into the hole. Handles with a ratchet function have a switch in the center to adjust the ratchet function. To fix the bit, simply turn the bottom part. The fixed form is designed to fix a square shank (handle). In addition to T-handles, they are also called tap wrenches and tap handles. When tapping, you should always use tap lubricant. If you do not have a dedicated tap lubricant, it is preferable to use WD-40, which is easy to obtain. The size of the drill bit to be used when drilling should be decided, but since a certain degree of error is allowed, it is sufficient to check the bolt to be used and select the appropriate size. The most accurate size of the drill bit is to use a drill bit with the same diameter as the internal core of the bolt to be used, minus the thread pitch, but if it actually fits exactly, it will be difficult to work, so it is preferable to select a slightly larger drill bit with a little margin. The method of tapping is to spray tap lubricant into the hole made with the drill and cut the thread line inside while turning the tap bit clockwise. Cut the thread line while turning clockwise, and when the resistance becomes too strong and it becomes difficult to turn, turn it counterclockwise and pull out the tap bit a little, then turn it clockwise and repeat the cutting process. If necessary, you can add more lubricant in the middle. It is important to maintain a right angle during work. If you work forcibly, the tap bit may break and be inserted, so you should always work slowly and without forcing it.

[0003] Hand taps are taps for manual work, and are often made up of three taps in one set: rough cutting, medium cutting, and finish cutting. A set of these three types is always necessary for blind holes, and for through holes, the medium cutting alone is also possible. Rough cutting taps are used in the smallest steps, and are inclined toward the tip of the tap, and some taps have a tapered tip. They can easily process holes made with a drill, and since they have few tap teeth, they can be cut with little force. They are characterized by the length of the tap blade being 9 teeth. Medium cutting taps are used in the intermediate process and are used to process holes up to the middle. If you are not too concerned about precision, these medium cutting taps are usually used more. They are characterized by the length of the tap blade being 5 teeth. Finish cutting taps are used for finishing purposes. They are used at the end of tapping, and can process holes down to the bottom. They are characterized by the length of the tap blade being 1.5 teeth.

[0004] However, conventional hand taps (or manual taps) are made up of three tap components, which limits the tap manufacturing costs and the processing steps for each tap.

[0005] In addition, with conventional hand taps, the center is found by hand during the initial operation, which means that machining to find the center accurately is extremely time-consuming and there are limitations to how accurately the center can be found.

[0006] Furthermore, in a situation where stronger forces are applied as the tapping process progresses, there is a limit to how much the center initially set as the zero point can be maintained. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] KR 2313809 B1 [Patent Document 2] KR 1362229 B1 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0008] The embodiment relates to a guide type hand tap that aims to solve the problems posed above, and aims to solve the problem of first easily finding the center of the processing origin and then continuously maintaining the center as processing continues.

[0009] It also solves the problems of initial centering and sustained centering mentioned above, while enabling equipment consisting of three taps to be completed with just one tap. [Means for solving the problem]

[0010] a guide body extending a predetermined length from one side of the tapping portion and having an outermost diameter shorter than an outermost diameter of the thread by a predetermined length; a guide portion including a head formed at an end of the guide body and a plurality of lubrication grooves formed at equal intervals along the diameter of the guide body from the head to the other end of the guide body to a predetermined depth; a handle body extending a predetermined length from the other side of the tapping portion; and a handle portion including a square grip formed on one side of the handle body and having at least three or more flat surfaces formed at equal intervals on the handle body having a circular cross section.

[0011] The guide-type hand tap further includes a gradient sensing means provided on one side of the handle portion for sensing the gradient of the guide-type hand tap, the gradient sensing means including: three or more laser modules provided at the same height on one side of the handle portion, each irradiating a predetermined laser beam in a direction in which the guide is inserted through a hole formed in a base material; a sensor module provided at the same height on one side of the handle portion, the same number as the laser modules, each having a laser module installed therein, for sensing height information at which the laser irradiated from the laser module reaches the base material; a control unit that calculates an average value of each piece of height information sensed by the sensor modules and forms a suitability signal if each piece of height information has an error rate of 0 to 10% from the average value; and an LED provided on one side of the handle portion that emits light when the suitability signal is generated by the control unit. The sensor module is installed to protrude from the handle portion, and is formed such that the diameter of an imaginary circle connecting the three or more laser beams irradiated from the laser modules is longer by a predetermined length than the diameter of a circle consisting of the diameter of the outermost contour of the thread.

[0012] The tapping portion further includes a first stem provided in the screw body with a predetermined length and one side of which is connected to the handle body, and the guide portion further includes a second stem provided in the guide body with a predetermined length and one side of which is rotatably connected to the other side of the first stem, a bearing groove provided on one side of the second stem, and a bearing module provided in the bearing groove and including a bearing to assist the first stem to rotate from the second stem, and the outer peripheral surface of the guide body is made of a material having a predetermined frictional force.

[0013] Furthermore, the guide-type hand tap further includes a transfer tube connected from one side of the guide portion to one side of the handle portion and capable of transferring a certain amount of fluid contained therein, and the guide portion further includes tubes made of an expandable material and connected to the transfer tubes, which are provided at three or more points on the outer circumferential surface of the guide body, and the guide body includes a first cylinder that contacts the outer circumferential surface of the hole when drilling a hole, a second cylinder that is installed inside the first cylinder and forms a predetermined internal space, and a piston that is connected to the second stem and reciprocates up and down inside the second cylinder, reducing the internal space of the second cylinder when it moves downward, thereby expanding the tube and causing it to come into close contact with an inner wall of the hole.

[0014] Meanwhile, the handle portion further includes a gauge-type switch that is installed on one side of the handle portion so as to be movable up and down, for adjusting the space in which the fluid from the transfer tube is accommodated, and a cover that is formed to the same size as the diameter of the transfer tube, divides the transfer tube into a fluid region and a non-fluid region, and is connected to the gauge-type switch and moves up and down to adjust the volume of the fluid region. Effect of the Invention

[0015] The embodiment is made up of a single tap structure, which has the effect of reducing the tap manufacturing cost and shortening the tapping process.

[0016] In addition, the embodiment has a guide portion at the front end, which makes it very easy to find or maintain the machining center, and lubrication is performed through the lubrication grooves formed in the guide portion, which allows smooth tapping. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a diagram for explaining a guide-type hand tap according to one embodiment. [Diagram 2] FIG. 1 is a diagram for explaining a square grip according to an embodiment. [Diagram 3] FIG. 4 is a diagram illustrating a gradient sensing means according to an embodiment. [Figure 4] 5A to 5C are diagrams illustrating a connection and rotation structure of a first stem and a second stem according to an embodiment. [Diagram 5] FIG. 2 is a diagram for explaining a structure of a tube, a piston, and a second cylinder according to an embodiment. [Figure 6] 1A to 1C are diagrams illustrating an operating structure of a gauge-type switch according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, the embodiments will be described in detail with reference to the attached drawings. However, since various modifications can be made to the embodiments, the scope of the patent application is not limited to these embodiments. It should be understood that all modifications, equivalents, or alternatives to the embodiments are included in the scope of the patent.

[0019] The specific structural or functional description of the embodiments is disclosed for the purpose of illustration only, and may be modified in various forms. Therefore, the embodiments are not limited to the specific disclosed forms, and the scope of the present specification includes modifications, equivalents, or alternatives within the technical spirit.

[0020] Although terms such as first or second are used to describe various components, such terms should be construed only for the purpose of distinguishing one component from another component. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

[0021] When an element is referred to as being "coupled" to another element, it may be directly coupled or connected to the other element, but it should be understood that there may be other elements in between.

[0022] The terms used in the examples are merely used for the purpose of explanation and should not be interpreted as being limiting. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this specification, the terms "include" or "have" and the like specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described above in the specification, and should be understood not to preclude the presence or additional possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0023] Unless otherwise defined, all terms, including technical or scientific terms, used herein have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments belong. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0024] In addition, referring to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and duplicated descriptions thereof will be omitted. In describing the embodiments, if it is determined that a detailed description of related publicly known technology may make the gist of the embodiments unclear, the detailed description thereof will be omitted.

[0025] The advantages and features of the present invention, as well as the methods for achieving them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be embodied in various different forms. However, the embodiments are provided to complete the disclosure of the present invention, and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the claims.

[0026] In the embodiments of the present invention, unless otherwise defined, all terms, including technical or scientific terms, used herein have the same meaning as commonly understood by a person having ordinary skill in the art to which the present invention belongs. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and unless explicitly defined in the embodiments of the present invention, they should not be interpreted in an ideal or overly formal sense.

[0027] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are illustrative, and the present invention is not limited to the illustrated matters. In addition, when describing the present invention, if it is determined that a specific description of related known technology may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When "including," "having," "consisting of," etc. are used in this specification, other parts may be added as long as "only" is not used. When a component is expressed in the singular, it includes the plural unless otherwise expressly specified.

[0028] When interpreting elements, they are interpreted as including a margin of error even if there is no explicit statement to the contrary.

[0029] If the description is about a positional relationship, for example when the positional relationship between two parts is described using "on top of", "on top of", "on bottom of", "beside", etc., one or more other parts may be located between the two parts, as long as "immediately" or "directly" is not used.

[0030] When elements or layers are referred to as "on" another element or layer, this includes all cases where the element or layer is directly on top of or between other layers or elements. Like reference numbers refer to like elements throughout the specification.

[0031] The positions and thicknesses of the components shown in the drawings are shown for convenience of explanation, and the present invention is not necessarily limited to the sizes and thicknesses of the components shown in the drawings.

[0032] The respective features of the various embodiments of the present invention may be partially or wholly combined or combined with each other, and various technical interlocking and driving are possible as will be fully understood by those skilled in the art, and each embodiment may be implemented independently of each other or may be implemented together in a linked relationship.

[0033] FIG. 1 is a diagram for explaining a guide-type hand tap according to one embodiment.

[0034] FIG. 2 is a diagram for explaining a square grip according to one embodiment.

[0035] FIG. 3 is a diagram for explaining a gradient sensing means according to an embodiment.

[0036] FIG. 4 is a diagram for explaining a connection and rotation structure of a first stem and a second stem according to an embodiment.

[0037] FIG. 5 is a diagram for explaining a structure of a tube, a piston, and a second cylinder according to one embodiment.

[0038] FIG. 6 is a diagram for explaining the operating structure of a gauge-type switch according to an embodiment.

[0039] The guide-type hand tap 10 according to the present invention comprises a tapping portion 100, a guide portion 200, and a handle portion 300.

[0040] The tapping portion 100 includes a columnar screw body 110 and a screw thread 120 formed along the outer circumferential surface of the screw body 110 .

[0041] The guide portion 200 includes a guide body 210 extending a predetermined length from one side of the tapping portion 100 and having an outermost diameter that is shorter than the outermost diameter of the thread 120 by a predetermined length, a head 220 formed at an end of the guide body 210, and a lubrication groove 230 formed at a predetermined depth from the head 220 to the other end of the guide body 210 and at equal intervals along the diameter of the guide body 210.

[0042] The handle portion 300 includes a handle body 310 extending a predetermined length from the other side of the tapping portion 100, and a square grip 320 formed on one side of the handle body 310 and having at least three flat surfaces 321 at equal intervals from the handle body 310, which has a circular cross section.

[0043] Here, the guide-type hand tap 10 further includes a gradient sensing means 400 provided on one side of the handle portion 300 for sensing the gradient of the guide-type hand tap 10.

[0044] The gradient sensing means 400 includes a laser module 410 , a sensor module 420 , a controller (not shown), and an LED 440 .

[0045] Three or more laser modules 410 are installed at the same height on one side of the handle part 300, and each irradiates a predetermined laser beam in a direction in which the guide is inserted into a hole 21 formed in the base material 20.

[0046] The sensor modules 420 are installed at the same height on one side of the handle portion 300 in the same number as the laser modules 410, and each sensor module 420 is installed with a laser module 410 and detects height information at which the laser irradiated from the laser module 410 reaches the base material 20.

[0047] The control unit calculates an average value of each height information sensed from the sensor module 420, and forms a suitable signal if each height information has an error rate within 0 to 10% from the average value.

[0048] The LED 440 is installed on one side of the handle part 300 and emits light when the suitable signal is generated from the control part.

[0049] Here, the sensor module 420 is installed to protrude from the handle 300, and is formed such that the diameter of an imaginary circle connecting three or more laser beams irradiated from the laser module 410 is a predetermined length longer than the diameter of a circle formed by the diameter of the outermost periphery of the thread 120.

[0050] Meanwhile, the tapping portion 100 further includes a first stem 130 .

[0051] The first stem 130 is installed in the screw body 110 with a predetermined length, and one side of the first stem 130 is connected to the handle body 310 .

[0052] The guide part 200 further includes the second stem 240 and a bearing module 250 .

[0053] The second stem 240 is installed in the guide body 210 with a predetermined length, and one side of the second stem 240 is rotatably connected to the other side of the first stem 130 .

[0054] The bearing module 250 comprises a bearing groove (not shown) provided on one side of the second stem 240 and a bearing (not shown) provided in the bearing groove, and serves to assist the first stem 130 in rotating from the second stem 240.

[0055] The outer circumferential surface of the guide body 210 is made of a material having a predetermined frictional force.

[0056] Next, the guide-type hand tap 10 further includes a delivery pipe 500 connected from one side of the guide part 200 to one side of the handle part 300 and capable of delivering a certain amount of fluid contained therein.

[0057] In addition, the guide part 200 further includes a tube 260 which is provided at three or more places on the outer circumferential surface of the guide body 210 and is made of an expandable material and connected to the transfer pipe 500 .

[0058] Meanwhile, the guide body 210 includes a first cylinder 211 , a second cylinder 212 , and a piston 213 .

[0059] The first cylinder 211 comes into contact with the outer peripheral surface of the hole 21 when the hole 21 is machined.

[0060] The second cylinder 212 is installed inside the first cylinder 211 to form a predetermined internal space.

[0061] The piston 213 is connected to the second stem 240 and reciprocates up and down inside the second cylinder 212. When the piston 213 moves downward, the internal space of the second cylinder 212 is reduced, and the tube 260 is expanded to be in close contact with the inner wall of the hole 21.

[0062] Next, the handle portion 300 further includes a gauge-type switch 330 that is installed on one side of the handle portion 300 so as to be movable up and down and adjusts the space in which the fluid from the transfer tube 500 is received, and a cover 340 that is formed to the same size as the diameter of the transfer tube 500 and divides the transfer tube 500 into a fluid region 351 and a non-fluid region 352, and is connected to the gauge-type switch 330 and moves up and down to adjust the volume of the fluid region 351.

[0063] Meanwhile, in the embodiment, height information is sensed by the laser irradiated to the base material 20, and it is possible to check in real time whether the work is being performed at a gradient within a set error range by the light emission of the LED 440.

[0064] In addition, in this embodiment, the second stem 240 is configured to be independent of the rotation of the first stem 130, thereby restricting the rotational movement of the guide part 200, thereby making the contact and support with the inner wall of the hole 21 more stable.

[0065] In this embodiment, as more force is applied downward during processing, the tube 260 installed in the guide part 200 expands, so that contact with and support by the inner wall of the hole 21 becomes more stable.

[0066] Furthermore, in this embodiment, the gauge-type switch 330 adjusts the volume of the fluid region 351, and if the LED 440 does not emit light continuously, the volume of the fluid region 351 is reduced, so that the tube 260 containing a certain amount of fluid is more closely attached to the inner wall of the hole 21, thereby making contact and support more stable.

[0067] Although the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not necessarily limited to these examples, and may be modified in various ways without departing from the scope of the technical idea of ​​the present invention. Therefore, the disclosed embodiments of the present invention are for illustration purposes, not for limiting the technical idea of ​​the present invention, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. Therefore, it should be understood that the above-described embodiments are illustrative and not limiting in all respects. The scope of protection of the present invention should be interpreted according to the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

[0068] Accordingly, other implementations, other embodiments, and equivalents of the claims are intended to be within the scope of the following claims. [Explanation of symbols]

[0069] 10: Guided hand tap 20: Base material 21: Hole 100: Tap processing section 110: Screw body 120:Thread 130: First stem 200: Guide section 210: Guide body 211: First cylinder 212: 2nd cylinder 213: Piston 220: Head 230: Lubrication groove 240: Second stem 250: Bearing module 260: Tube 300: Handle 310: Handle body 320: Square grip 321: Plane 330: Gauge type switch 340: Cover 351:Fluid area 352: Non-fluid area 400: Gradient sensing means 410: Laser module 420: Sensor module 440: LED 500:Transfer pipe

Claims

1. A tapping portion including a columnar screw body and a thread formed along an outer peripheral surface of the screw body; a guide body extending a predetermined length from one side of the tapping portion and having an outermost diameter shorter than the outermost diameter of the thread by a predetermined length; a head formed at an end of the guide body; and a lubrication groove formed at a predetermined depth from the head to the other end of the guide body and at equal intervals along the diameter of the guide body; a handle body formed by extending a predetermined length from the other side of the tapping portion; and a square grip formed on one side of the handle body, the handle body having a circular cross section and at least three or more flat surfaces formed at equal intervals on the handle body. Guided hand tap.

2. The guide type hand tap includes: A slope sensing means is provided on one side of the handle portion for sensing the slope of the guide-type hand tap, The gradient sensing means includes: three or more laser modules are provided at the same height on one side of the handle portion, each of which irradiates a predetermined laser beam in a direction in which the guide is inserted through a hole formed in a base material; a sensor module that is provided at the same height on one side of the handle portion and has the same number as the laser modules, the sensor module being provided with the laser module, and that detects height information of a laser beam irradiated from the laser module reaching a base material; a control unit that calculates an average value of each of the height information sensed by the sensor module, and generates a conformity signal if each of the height information has an error rate within 0 to 10% from the average value; an LED provided on one side of the handle portion and emitting light when the appropriate signal is generated from the control portion; The sensor module includes: The laser module is installed to protrude from the handle portion, and the diameter of a virtual circle formed by connecting three or more laser beams irradiated from the laser module is formed to be longer by a predetermined length than the diameter of a circle formed by the diameter of the outermost periphery of the thread.

2. The guide-type hand tap of claim 1.

3. The tapped portion has a first stem having a predetermined length provided inside the screw body and one side connected to the handle body; The guide portion includes: a second stem having a predetermined length provided inside the guide body and one side of which is rotatably connected to the other side of the first stem; a bearing module including a bearing groove provided on one side of the second stem and a bearing provided in the bearing groove, for assisting the first stem to rotate from the second stem; 3. The guide-type hand tap according to claim 2, wherein an outer peripheral surface of the guide body is made of a material having a predetermined frictional force.

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