TWM582437U - Mechanical torque display device of gas/electric screwdriver - Google Patents

Abstract

The present invention provides a mechanical gas/electric screwdriver torque display device which is assembled on the head of the gas/electric screwdriver and is an open/protective type that can be freely switched. The open type is suitable for quickly adjusting the torque. The protection type is suitable for long-term use of fixed torque, and can prevent the field operator from adjusting the torque value; especially the type of torque display device can easily read the current set value of the gas/electric screwdriver. And in accordance with ISO management regulations, and can do correction function on a regular basis; in particular, the torque value can be arbitrarily adjusted according to the demand, and the current set or adjusted torque value can be displayed instantly, thereby eliminating the effect of eliminating the correction time of the torque tester.

Description

Mechanical gas/electric screwdriver torque display device

The present invention relates to a mechanism design for an externally-regulated torque/electric screwdriver, and more particularly to a mechanical gas/electric screwdriver torque display device.

Press, when the screws are locked, the corresponding torque values according to different sizes of screws are called torque or torque T (Torque). In the case of commonly used small-sized screws, T generally refers to the locked torque, the unit is Kgf-cm. The torque of the M3 screw of the general material is 6.0Kgf-cm, and the torque value of the special steel M3 screw can be Up to 14.4Kgf-cm; different materials, different friction coefficients, different diameters, will set different torque values. Therefore, when you want to use a tool screwdriver to lock a screw, the first task is to set the value of the torque.

Currently available gas/power tools, in addition to the extremely high-speed digital digital display torque screwdriver, there is no cheap simple mechanical torque value display reference scale table on the market, only a rough size of 1-10 The torque value currently set by the operator cannot be displayed. It must be corrected by using a Torque meter, which is troublesome and time consuming. Secondly, the operator cannot know the torque value of the tool used, and the lock will be caused. In addition, the torque of the Torque meter is expensive, and it is a non-essential product for general users and even products produced in developing countries.

The main purpose of this creation is to provide a mechanical gas/electric screwdriver torque display device that can easily read the current torque setting of the gas/electric screwdriver and conform to ISO management regulations, and can perform calibration functions periodically.

Another object of the present invention is to provide a mechanical gas/electric screwdriver torque display device, which can adjust the torque value arbitrarily according to the demand, and instantly display the currently set or adjusted torque value, thereby eliminating the correction time of the torque testing machine. The effect.

In order to achieve the above various purposes, the present invention provides a mechanical gas/electric screwdriver torque display device, which is an open type and a protective type, wherein the open torque display device is suitable for a factory that needs to quickly adjust the torque, the protective torque The display device is suitable for long-term use of fixed torque, and can prevent the field operator from adjusting the torque value without authorization. The two can be switched freely.

The open/protective torque device is disposed on the head of the gas/electric screwdriver, and comprises: a digital rotating ring with a scale number on the circumference; and a torque adjustment ring, which has a large and small difference The stepped sleeve formed by the diameter can provide the digital rotating sleeve to be axially displaced on the small diameter peripheral surface, and set the desired torque value; an upper outer nut is screwed to one end of the torque adjusting ring Preventing the digital swivel from falling off; and a sheath axially coupled to cover the entire torsion adjusting ring and freely rotatable, and having a hollow outer window on the circumferential surface, by rotating the sheath The outer window corresponds to and clearly and completely sees the scale of the scale ring on the digital swivel. The scale value representing the torque value falls within the inner window and is aligned with the coincident torque scale indicator line to achieve the torque value required for the adjustment.

The small-diameter end edge of the torsion adjusting ring is provided with a thread, and the peripheral surface is provided with a hollow inner window, and a positioning hole is arranged on the peripheral surface of the large-diameter end edge, and a positioning screw is disposed in the through-hole.

The class surface of the torsion adjusting ring is provided with a pair of slot holes, and the slots are provided There is a spring and a positioning pin. The digital rotating ring is provided with a plurality of grooves on the surface of the end surface of the class surface. The positioning pin can selectively extend into the groove to form a snap.

The sheath is made of soft rubber and can be transparent or opaque, and can be further made of different materials and provided with different colors.

The shape of the inner window described above may be any geometric shape such as a circle, a polygon, or the like.

The shape of the outer window may be any geometric shape such as a circle, a polygon, or the like.

The various types of torque display devices of the above-mentioned design have achieved the pre-effects of the first phase: first, the torque setting value of the gas/electric screwdriver can be quickly and easily read; second, the function of correcting the torque value at any time. Third, you can directly know the torque value of the gas/electric screwdriver used and directly carry out the required locking operation, eliminating the need to purchase expensive torque testing equipment; Fourth, the long-term use of fixed torque, and can prevent on-site implementation personnel to adjust Torque value of gas/electric screwdriver; 5. Immediately display the torque value set by the current gas/electric screwdriver used by the implementer, eliminating the need to use the torque tester to test or adjust the time.

(1)‧‧‧Torque display device

(11) ‧ ‧ digital ring

(111)‧‧‧ inner scale ring

(112)‧‧‧Tick ring sticker

(113)‧‧‧Outer scale ring

(114) ‧ ‧ ticks

(115) ‧‧‧ Groove

(12)‧‧‧Torque adjustment ring

(121)‧‧‧ thread

(122)‧‧‧ Inside window

(123)‧‧‧Positioning holes

(124)‧‧‧ Positioning screws

(125)‧‧‧Slots

(126) ‧ ‧ spring

(127)‧‧‧Locating pins

(13) ‧‧‧Upper outer nut

(14)‧‧‧ sheath

(141)‧‧‧ outside window

(2) ‧ ‧ gas / electric screwdriver

(21)‧‧‧Torque cylinder

(211)‧‧‧Torque scale indicator line

The first figure is an exploded view of a torque display device according to a preferred embodiment of the present invention.

The second drawing is an exploded view of a torque display device according to another preferred embodiment of the present invention.

The third figure is a combination diagram of the torque display device of a preferred embodiment of the present invention.

The fourth drawing is a combination of a torque display device and a partial cross-sectional view of a preferred embodiment of the present invention.

The fifth drawing is a cross-sectional view taken along line A-A of a preferred embodiment of the present invention.

Please refer to the mechanical gas/electricity designed by this creation as shown in the first and second figures. a torque actuator display device (1) is disposed at a position of a head of a general gas/electric screwdriver (2) (corresponding to a torsion cylinder), and is assembled in a pneumatic screwdriver as disclosed in the first figure. The two diagrams are disclosed in the group of electric screwdrivers, and both of them have an open type and a protective type and can be used interchangeably. The open type is suitable for factories that need to adjust the torque quickly; the protection type is suitable for long-term use of fixed torque, and can prevent the field operator from adjusting the torque value.

Please refer to the first to third figures, which is a mechanical gas/electric screwdriver torque display device according to a preferred embodiment of the present invention. The torque display device (1) is an open/protective type; wherein the torque scale indicator line ( 211) is provided on the gas/electric screwdriver (2). The specific embodiment of the torque display device (1) comprises: a digital swivel (11), which is composed of an inner scale ring (111), a scale ring sticker (112) and an outer scale ring (113). The scale ring sticker (112) is made of a transparent material and has a scale number (114) on the circumference; a torsion adjustment ring (12) is a class-shaped sleeve having a large and small different diameter, which can be provided. The digital swivel (11) is sleeved on the small-diameter circumferential surface for axial displacement, and provides the desired torque value set. The small-diameter end edge of the torque adjusting ring is provided with a thread (121), and the circumferential surface is provided with a a window (122) having an arbitrary geometric shape (such as a circle, a polygon, etc.) and being hollowed out, and a positioning hole (123) is provided on the peripheral surface of the large-diameter edge, and a positioning screw (124) is provided for the back wearing. The fixed adjustment function of the torsion adjusting ring (12); an upper outer nut (13), the thread (121) screwed to the edge of the small diameter is fixed to prevent the digital rotating ring (11) from falling off; The sleeve (14) is made of soft rubber and can be axially coupled to cover the entire torsion adjusting ring (12) and freely rotatable, and is provided on the circumference of the sheath (14). Taking any geometric shape (such as a circle, a polygon, etc.) and a hollow outer window (141); by rotating the sheath (14), the outer window (141) is correspondingly and clearly and completely sees the digital turn The scale ring (112) on the ring (11) represents the torque value. The scale number (114) falls within the inner window (122) and is aligned with the torque scale indicator line (211) to achieve the torque required for adjustment. value.

As shown in the fourth and fifth figures, the level surface of the torsion adjusting ring (12) is provided with a pair of slots (125), and the slots (125) are provided with springs (126) and positioning pins (127). a plurality of grooves (115) are formed on the surface ring of the digital rotating ring (11) opposite to the end surface of the class surface, and the positioning pin (127) is selectively formed into the groove (115). The card is reached to limit the effect of the rotation of the digital swivel (11).

Secondly, according to the above-mentioned torque display device, when the gas and electric screwdriver are used for a period of time, in order to prevent the torque value and the actual torque value from being inaccurate, it is necessary to periodically correct the torque value and meet the current production management operation standard. Therefore, the present invention provides The torque display device also has a correction adjustment for a convenient torque value.

The creation department has both an open and a protective torque display device, the difference being that the sheath (14) is installed, that is, the protective torque display device (1), and the non-sheath (14) is open. Torque display device (1). Thereby, the gas/electric screwdriver (2) can be used to easily read the preset torque value or the torque value currently being used; especially when the protective torque display device (1) is implemented, the outer sheath is provided ( 14), can prevent anyone from changing the torque value at will, which is beneficial and meets the needs of customers with strict quality management and precise requirements for torque values.

In the above, when performing the correction, first rotate the digital swivel (11) and look at the inner window (122) to turn to the torque value required by the user, that is, the scale number (114) of the required torque value is overlapped. Inside the inner window (122); then rotate the torque adjustment ring (1 2), the eye continuously looks at the torque value in the inner window (122), and after rotating to the desired torque value, the internal window (122) corresponds to the internal gas and the electric screwdriver torque indicating line (112). Then stop the torque adjustment ring (12) and use the locking set screw (124) to clamp the positioning hole (123) to complete the actual torque value setting.

The sheath (14) made of the soft rubber mentioned above may be transparent or opaque, and may be further made of different materials and provided with a color, thereby being applicable to the production line, and the difference in color of the different torque values of the production line. management.

By summarizing the above description, the torque display device of the present invention has the following advantages: 1. The open type, protective torque display device is suitable for a low-order screw lock tool, and the open/protective torque display device is suitable for a high-order screw lock tool. 2. The torque display device has the functions of easy operation, easy judgment and easy to read torque, and can avoid false positives. 3. The torque display device has three protection functions, including: preventing irrelevant personnel from rotating, easily adjusting the torque value, and preventing the workpiece and the tool from being injured. 4. The rubber jacket is set in different colors and can be used in the production line to make the color difference difference management of different torque values of the production line. 5. Any open and protected type of torque and electric screwdriver can be applied.

However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the equivalent structural changes that are applied to the present specification and the scope of the patent application are intended to be included in the scope of the present invention.

Claims (6)

A mechanical gas/electric screwdriver torque display device comprises: a digital rotating ring with a scale number on the circumference; a torque adjustment ring, a class-shaped sleeve having a large and small different diameter, and a small diameter The end edge is provided with a thread, and the peripheral surface is provided with a hollow inner window, and the digital rotating ring is sleeved on the small diameter circumferential surface for axial displacement, and the desired torque value is set; an upper outer nut is screwed The small diameter end of the torque adjusting ring prevents the digital rotating ring from falling off; and a sheath is axially coupled to cover the entire torque adjusting ring and can be freely rotated, and a hollow outer window is arranged on the circumferential surface; By rotating the sheath, the outer window corresponds to and clearly sees that the scale number representing the torque value on the digital swivel falls within the inner window and aligns with the twisting scale indicating line to achieve the torque value required for the adjustment. The mechanical gas/electric screwdriver torque display device according to the first aspect of the invention, wherein the large-diameter end edge of the torsion adjusting ring is provided with a positioning hole, and a positioning screw is disposed in the re-wearing. The mechanical gas/electric screwdriver torque display device according to claim 1, wherein the level surface of the torsion adjusting ring is provided with a pair of slot holes, and the slot is provided with a spring and a positioning pin. The digital rotating ring is provided with a plurality of grooves on the end surface of the class surface, and the positioning pin can selectively extend into the one of the grooves to form a snap. The mechanical gas/electric screwdriver torque display device according to claim 1, wherein the sheath is made of soft rubber, and may be transparent or opaque, and may be further made of different materials and provided with different colors. . The mechanical gas/electric screwdriver torque display device according to claim 2, wherein the shape of the inner window can be any geometric shape such as a circle, a polygon, or the like. The mechanical gas/electric screwdriver torque display device according to claim 1, wherein the shape of the outer window can be any geometric shape such as a circle, a polygon, or the like.