TW201422346A - Semi-opened drilling needle shank clamper - Google Patents

Abstract

A semi-opened drilling needle shank clamper comprises a base, a V-shaped clip strip, a clamping base and a push rod to clamp and fasten the shank of a drilling needle and to perform grinding and processing, wherein the base is disposed with a fastening portion and a fastening surface perpendicular to each other. The V-shaped clip strip is disposed to the fastening portion and has a V-shaped leaning surface. The clamping base is disposed to the fastening surface and has a movable sheet and a datum surface. The feature of this invention is to utilize the movable sheet leaning toward the V-shaped clip strip in a lateral direction upon receiving restored elastic force and clamping and fastening the shank of the drilling needle at a two-line-and-one-point mode. Moreover, the drilling needle is averagely placed on the datum surface. The movable sheet is expanded by the push rod to release the drilling needle. Not only can its semi-opened design be conveniently cleaned and maintained to reduce subsequent repair costs, but also can it be stably clamped to retain the grinding quality.

Description

Semi-open drill shank fixture

This creation belongs to the field of burr grinding equipment, especially a semi-open stylus handle clamp that clamps and fixes the shank of the drill to facilitate grinding.

According to the precision drilling process or circuit board drilling process, the micro-drilling hole is used to drill tiny holes. As the use time is long, the drill bit and the edge of the micro-drilling pin will also wear out, which affects the drilling. Hole quality and efficiency, in order to effectively reduce the cost of use, these micro-drills will be recycled for re-grinding, but because of the small size and high length/diameter ratio of the micro-drill, it must be precision through one of the special designs. The grinding device can be re-grinded and clamped and fixed by a fixing jig before it can be firmly ground to maintain the subsequent grinding quality, which is closely related to the stability, quality or efficiency of the drilling.

At present, please refer to FIG. 1 , which is a schematic structural view of a conventional fixing fixture. As shown in the figure, the fixing fixture 1 includes an outer sleeve 11 and a set of rings 12 concentrically disposed therein. The collar 12 The system has a plurality of clips 121, and each of the clips 121 is provided with a gap therebetween, and the inner surface of each clip 121 is formed to correspond to the handle of the micro drill needle 2 to form a curved surface. The inner diameter of 11 corresponds to the periphery of the clip 121. Therefore, when the collar 12 is used for lifting movement with respect to the outer sleeve 11, the clips 121 are interlocked. The state of being opened or closed, and by the curved surfaces after the clips 121 are closed, the shank of the micro burs 2 is touched on average to achieve the purpose of clamping and fixing.

However, the following problems are often encountered in the actual operation of the fixture:

1. When clamping, the bottom of the micro drill 2 is attached to the bottom of the collar 12 so that the precision grinding device 1 measures the length for grinding, but, due to the falling of the collar 12, The micro-drill 2 will be subjected to lateral squeezing force, causing a slight increase in its position to cause an error in measuring the length, which indirectly affects the quality during grinding.

2. Moreover, since the outer sleeve 11 is reciprocatingly moving up and down relative to the collar 12, there is often a mutual friction between them, and there is a possibility that the outer sleeve 11 or the collar 12 is worn out, such as Serious wear and tear will also affect the effect of the clamping. It must be dismantled in detail before it can be replaced and repaired, thus greatly increasing the maintenance cost.

3. In addition, the gap between the outer sleeve 11 and the collar 12, and the gap between the clips 121 of the collar 12 are prone to accumulation of dust, which must be cleaned frequently, such as dust. If the problem is serious, there may be a problem that the clamping is unstable, and there is also an error in measuring the length. Therefore, it is necessary to improve the above problems.

In view of the above, an object of the present invention is to provide a semi-open drill shank fixture, which adopts a semi-open design, which is not only easy to clean, but also requires less maintenance and replacement, and greatly reduces maintenance costs; Maintenance and replacement is most often used as a V-shaped clip on the joint surface, which makes disassembly and maintenance more convenient. Furthermore, the creation unit can use the movable piece to synchronously push the handle portion of the drill needle toward one side of a V-shaped clip to form a two-line manner to clamp and fix the handle portion of the drill needle. According to this, it is possible to firmly hold the grip and effectively maintain the polishing quality.

In order to achieve the above object, the semi-open drill shank grip of the present invention clamps and fixes a handle of a drill for grinding the drill body of the drill, which comprises: a base, one side of which is A fixing portion is defined to extend the handle portion of the drill pin, and a fixing surface is formed on the other side, and the fixing portion and the fixing surface are perpendicular to each other; a V-shaped clip is disposed on the fixing portion, and the V The clip is provided with a first abutting surface and a second abutting surface to form a V-shaped abutting surface, and a set angle is arranged therebetween for abutting against two sides of the handle of the drill needle; a seat is disposed on the fixing surface, the clamping seat is elastically connected with a movable piece, and the movable piece has a third abutting surface, and the clamping seat is provided with a reference surface for abutting against the drill a base of the needle to obtain a reference length thereof; and a plunger, the activity is disposed in the base, and one end of the plunger is connected to the movable piece; when the needle is clamped, the plunger is retracted into the In the pedestal, the third hinge surface is laterally moved by the resilience of the movable piece, and the first The joint surface and the second abutment surface form a two-line type to clamp and fix the handle of the drill needle; when released, the top rod extends out of the holder and abuts against the movable piece It swings in the opposite direction and is in an unfolded state.

In one embodiment, the movable piece is pivotally connected to the holder, and an elastic element is disposed between the movable piece and the holder, and the elasticity of the elastic element is utilized to restore the activity. The sheet is pushed toward the V-shaped clip to form a clamped state. Furthermore, a fixing block is vertically disposed on the reference surface of the holder, and a pivoting portion is disposed on the connecting portion of the fixing block to pivotally connect the movable piece to enable the movable piece to be The pivoting portion swings as a fulcrum. And a first accommodating groove is disposed on the back surface of the movable piece, and the fixing block is provided with a second accommodating groove corresponding to the first accommodating groove, so that the two ends of the elastic component are respectively disposed on the first accommodating groove The accommodating groove and the second accommodating groove are arranged to receive the elastic component.

In one embodiment, a first through hole is formed in the base for the movable insertion of the ejector pin, and the clamping seat is provided with a second through hole. When the clamping seat is fixed to the base The first through hole and the second through hole are disposed in abutting manner such that one end of the top rod can pass through the second through hole and abut the movable piece, and the other end of the top rod is connected with a power source To push the ram to reciprocate within the base.

In one embodiment, the V-shaped clip of the present invention has a V-shape from above, and the fixing portion is provided with a V-shaped groove and a fixing hole corresponding to the V-shaped clip, and the fixing hole is Outside the pedestal The V-shaped groove is inserted into the V-shaped groove to position the V-shaped clip therein.

In view of the above, the second object of the present invention is to provide a semi-open drill shank clamp using another type of clamping seat, which is also a semi-open design, which is easy to clean and repair and replace, and the same The movable piece can be used to laterally push the shank of the bur to the side of one of the V-shaped clips to form a two-line type to clamp and fix the shank of the bur, and the clip can be firmly clamped. Maintain and maintain the quality of the grinding.

In order to achieve the above object, the semi-open drill shank clamp of the present invention clamps and fixes a handle of a drill for grinding the drill body of the drill, which comprises: a base, one side thereof And a fixed surface is formed on the other side of the handle of the drill, and the fixed side is perpendicular to the fixed piece; a V-shaped clip is disposed on the fixed portion. The V-shaped clip is provided with a first abutting surface and a second abutting surface to form a V-shaped abutting surface, and a set angle is arranged therebetween for abutting against two sides of the handle of the drill needle; a movable seat is disposed on the fixing surface, and a movable piece is integrally formed on the top surface of the clamping seat, and a connecting portion and an elastic portion are disposed between the movable piece and the clamping seat, wherein the movable piece is provided by the movable piece The elastic portion is pushed toward the V-shaped clip, the movable piece has a third abutting surface, and the clamping seat is provided with a reference surface for abutting against the bottom of the drilling pin to obtain a reference length thereof; a jack, the activity is disposed in the base, and one end of the jack is connected to the movable piece; when the drill is clamped, the jack is attached Retracted into the base, borrowing the active piece Recovering the elastic force, causing the third abutment surface to move laterally, and forming a two-line pattern with the first abutment surface and the second abutment surface to clamp and fix the handle of the drill needle; The ejector rod extends out of the holder and abuts against the movable piece to swing it in the opposite direction to be in an unfolded state.

Wherein, the elastic portion is formed by a continuous plurality of bendings, and the side view is in the shape of a corrugated needle, and according to the resilience elastic force generated by the continuous bending, the movable piece is pushed toward the V-shaped clip. The direction of the sheet is abutted to replace the elastic member of the previous embodiment.

In order for your review board to have a clear understanding of the content of this creation, please refer to the following description only.

First embodiment

Please refer to the figures 2, 3, 4 and 5 to 6 for the installation diagram, the exploded view and the assembled three-dimensional appearance of the first embodiment of the present invention, and various state diagrams during use. As shown in the figure, the semi-open drill shank clamp 3 of the first embodiment of the present invention is applied to a precision grinding device 4 for holding and fixing a handle of a drill needle 5 for grinding the drill needle. The semi-open drill shank clamp 3 includes a base 31, a V-shaped clip 32, a clamping seat 33, a jack 34 and a power source 35.

The pedestal 31 is disposed on the precision polishing device 4 and is coupled to a rotating module 41 of the precision polishing device 4 to drive the semi-open stylus handle clamp 3 to rotate. One The side portion has a fixing portion 311 extending corresponding to the handle portion of the drill pin 5, and a fixing surface 312 is formed on the other side, and the fixing portion 311 and the fixing surface 312 are perpendicular to each other. A first through hole 313 is defined in the base 31. One end of the first through hole 313 extends from the bottom of the base 31 to the fixing surface 312. In addition, the fixing portion 311 is provided with a V-shaped groove 3111 and a fixing hole 3112. The V-shaped groove 3111 is located on the inner surface of the fixing portion 311, and the fixing hole 3112 is disposed on the outer surface of the fixing portion 311. The fixing hole 3112 is perpendicular to the V-shaped groove 3111, and can penetrate into the V-shaped groove 3111 from the outside of the base 31 through a fixing screw 3113.

The V-shaped clip 32 is disposed in the V-shaped groove 3111 of the fixing portion 311 in a V-shape, and the V-shaped clip 32 is provided with a screw hole 321 corresponding to the fixing hole 3112. The V-shaped groove 3111 and the V-shaped clip 32 also have a V-shape. During the locking of the fixing screw 3113, the shape of the V-shaped clip 32 is gradually merged with the V-shaped groove 3111 to form a positioning. efficacy. The V-shaped clip 32 is provided with a first abutting surface 322 and a second abutting surface 323 to form a V-shaped abutting surface with a set angle therebetween. For abutting against the two sides of the handle of the drill 5, in this embodiment, the set angle The system is 90 degrees.

The clamping seat 33 is fixed on the fixing surface 312, and the clamping seat 33 is provided with a reference surface 331 for abutting against the bottom of the drilling pin 5 to obtain a reference length when the grinding is performed, the reference surface 331 The upper part is vertically disposed with a fixing block 332. The fixing block 332 is connected with the clamping seat 33 to provide a pivoting portion 333 for pivotally engaging a movable piece 334, and the movable piece 334 is corresponding to the first piece. The joint surface 322 and the second abutment surface 323 have a third abutment surface 3341 which is arranged in a curved surface. Moreover, an elastic member 335 is disposed between the movable piece 334 and the clamping seat 33 to provide a return elastic force for pushing the movable piece 334 toward the V-shaped clip 32. It should be noted that, in order to facilitate the mounting of the elastic member 335, a first receiving groove 3342 is disposed on the back surface of the movable piece 334, and the fixing block 332 is provided with a second receiving portion corresponding to the first receiving groove 3342. The slot 3321 is provided with the two ends of the elastic member 335 respectively disposed in the first receiving groove 3342 and the second receiving groove 3321 to avoid falling off during use, and further defines the elastic member 335 to be stretched. direction. In addition, the clamping seat 33 corresponds to the first through hole 313 and a second through hole 336 is disposed on the reference surface 331 . The first through hole 313 and the second through hole 336 are disposed in abutting manner.

The ram 34 is movably disposed in the first through hole 313 of the base 31 such that one end of the ram 34 can pass through the second through hole 336 and abut against the movable piece 334.

The power source 35 is disposed below the jack 34 and connected to the other end of the jack 34 for pushing the jack 34 to reciprocate inside the first through hole 313.

As shown in FIG. 5, when the present creation is used, the ram 16 is pushed through the power source 35, and one end thereof passes through the first a through hole 313 and the second through hole 336 are abutted against the bottom of the movable piece 334 to move the movable piece 334 in the opposite direction of the V-shaped clip 32 to form a deployed state for being placed in the drill. Needle 5. As shown in FIG. 6, on the other hand, when the power source 35 is reversely actuated to retract the jack 34 into the base 31, the movable piece transmits the elastic force of the elastic member 335 to push the movable piece. The 334 is oscillated in the direction of the V-shaped clip 32, so that the third abutting surface 3341 is laterally moved, and the first abutting surface 322 and the second abutting surface 323 form a two-line pattern. The shank of the burr 5 is clamped and fixed, and the apex of the bur is kept in contact with the reference surface 331 during the clamping process, so that there is no vertical displacement, and no measurement is caused by the conventional influence. The shortcomings of length; in addition, its semi-open design can also be easily cleaned and repaired and replaced.

Second embodiment

Please refer to FIGS. 7 and 8 for an exploded perspective view of the second embodiment of the present invention and a stereoscopic external view after assembly, and various state diagrams during use. As shown in the figure, the semi-open drill shank clamp 6 of the second embodiment of the present invention also includes a base 61, a V-shaped clip 62, a clamping seat 63, a jack 64 and a power. Source 65. The structure of the pedestal 61, the V-shaped clip 62, the ram 64 and the power source 65 and the mounting manner thereof are the same as those of the first embodiment, and details are not described herein again. It should be noted that a top surface of the holder 63 is integrally formed with a movable piece 631, and a connecting portion 632 and an elastic portion are disposed between the movable piece 631 and the clamping seat 63. 633, and the elastic portion 3 is formed by a plurality of continuous bending, and is formed in a splayed needle shape from a side view. Furthermore, the movable piece 631 has a third abutting surface 6311, and the clamping seat 631 is also provided with a reference surface 634 for abutting against the bottom of the drilling pin 5 to obtain a reference length for grinding.

Moreover, the operation mode in use is the same as that of the previous embodiment, and mainly uses the resilience elastic force generated by the elastic portion 633 to push the movable piece 631 to move in the direction of the V-shaped clip 62, and accordingly Holding the handle of the drill 5 as a means of gripping the drill 5; conversely, when the drill 5 is to be released, the pusher 64 pushes the movable piece 631 from bottom to top to make the activity The sheet 631 is moved toward the opposite direction of the V-shaped clip 62 with the connecting portion 632 as a fulcrum, and forms a developed shape as a means for releasing the drill 5.

However, the above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, it is common knowledge in the technical field or equivalent or easy to be familiar with the technology. The changes and modifications made by the changer without departing from the spirit and scope of this creation shall be covered by the scope of this creation.

[Practical]

1‧‧‧Fixed fixture

11‧‧‧Outer casing

12‧‧‧ collar

121‧‧‧ Clips

2‧‧‧Micro Drill

[First Embodiment]

3‧‧‧ Semi-open drill needle handle clamp

31‧‧‧ Pedestal

311‧‧‧ Fixed Department

3111‧‧‧V-groove

3112‧‧‧Fixed holes

3113‧‧‧ fixing screws

312‧‧‧Fixed surface

313‧‧‧First perforation

32‧‧‧V-shaped clips

321‧‧‧ screw hole

322‧‧‧First hinge

323‧‧‧Second joint

33‧‧‧Clamping seat

331‧‧‧ datum

332‧‧‧Fixed blocks

3321‧‧‧Second accommodating slot

333‧‧‧ pivotal department

334‧‧‧Activities

3341‧‧‧ third hinge

3342‧‧‧First accommodating slot

335‧‧‧Flexible components

336‧‧‧Second perforation

34‧‧‧Pole

35‧‧‧Power source

4‧‧‧Precision grinding device

41‧‧‧Rotary Module

5‧‧‧Drills

[Second embodiment]

6‧‧‧Half open drill shank grip

61‧‧‧ Pedestal

62‧‧‧V-shaped clip

63‧‧‧Clamping seat

631‧‧‧Activities

6311‧‧‧The third hinge

632‧‧‧Connecting Department

633‧‧‧Flexible Department

634‧‧‧ datum

64‧‧‧Pole

65‧‧‧Power source

Fig. 1 is a schematic view showing the structure of a conventional fixing jig.

Fig. 2 is a schematic view showing the installation of the first embodiment of the present invention.

Fig. 3 is an exploded perspective view showing the first embodiment of the creation.

Fig. 4 is a perspective view showing the assembled first embodiment of the creation.

Fig. 5 is a schematic view (1) of the state when the first embodiment of the present invention is used.

Fig. 6 is a schematic view (2) of the state when the first embodiment of the present invention is used.

Fig. 7 is an exploded perspective view showing the second embodiment of the creation.

Fig. 8 is a perspective view showing the assembled second embodiment of the present invention.

Fig. 9 is a schematic view (1) of the state when the second embodiment of the present invention is used.

Fig. 10 is a schematic view (2) of the state when the second embodiment of the present invention is used.

3‧‧‧ Semi-open drill needle handle clamp

31‧‧‧ Pedestal

311‧‧‧ Fixed Department

3111‧‧‧V-groove

3112‧‧‧Fixed holes

3113‧‧‧ fixing screws

312‧‧‧Fixed surface

313‧‧‧First perforation

32‧‧‧V-shaped clips

321‧‧‧ screw hole

322‧‧‧First hinge

323‧‧‧Second joint

33‧‧‧Clamping seat

331‧‧‧ datum

332‧‧‧Fixed blocks

3321‧‧‧Second accommodating slot

333‧‧‧ pivotal department

334‧‧‧Activities

3341‧‧‧ third hinge

3342‧‧‧First accommodating slot

335‧‧‧Flexible components

336‧‧‧Second perforation

34‧‧‧Pole

35‧‧‧Power source

Claims (10)

A semi-open drill shank clamp for holding and fixing a shank of a drill for grinding the drill body of the drill, comprising: a base, one side of which corresponds to the handle of the drill And a fixing portion is formed on the other side, and the fixing portion is perpendicular to the fixing piece; the V-shaped clip is disposed on the fixing portion, and the V-shaped clip is provided with a first Forming a V-shaped abutment surface by a hinge surface and a second abutment surface, wherein a set angle is provided for abutting against two sides of the handle portion of the drill needle; and a clamping seat is disposed on the fixing surface The movable seat is elastically connected with a movable piece, and the movable piece has a third abutting surface, and the clamping seat is provided with a reference surface for abutting against the bottom of the drilling pin to obtain a reference thereof. a length; and a jack, the activity is disposed in the base, and one end of the jack is connected to the movable piece; when the drill is clamped, the jack is retracted into the base, by the activity Resilience of the sheet, causing the third abutment surface to move laterally, and forming a two-line point with the first abutment surface and the second abutment surface Type, to clamp a fixed portion of the shank of the needle; when released, the ram system extends the retainer, and abuts against the movable plate so as to swing backward in its expanded state. The semi-open drill shank handle clamp according to the first aspect of the invention, wherein the movable piece is pivotally connected to the holder, and An elastic element is disposed between the movable piece and the clamping seat, and the movable piece is pushed toward the V-shaped clamping piece. The semi-open drill shank handle clamp according to the second aspect of the invention, wherein the reference surface of the holder is vertically provided with a fixing piece, and the fixing piece is connected with the clamping seat. There is a pivoting portion to pivotally connect the movable piece. The semi-open drill shank handle clamp according to the third aspect of the invention, wherein the back surface of the movable piece is provided with a first accommodating groove, and the fixed piece is corresponding to the first accommodating groove. The two receiving slots are disposed in the first receiving slot and the second receiving slot respectively. The semi-open drill shank handle clamp according to the first aspect of the invention, wherein the base is provided with a first through hole for the movable insertion of the ejector rod therein, and the clamp seat is provided with a a second through hole, the first through hole and the second through hole are disposed in abutting manner, such that one end of the top rod passes through the second through hole and abuts against the movable piece. The semi-open drill shank clamp according to claim 5, further comprising a power source connected to the other end of the ram to push the ram into the pedestal Reciprocating. The semi-open drill shank clamp according to claim 1, wherein the V-shaped clip has a V-shape from above, and the fixed portion is provided with a V corresponding to the V-shaped clip. a slot and a fixing hole, the fixing hole is inserted into the slot from the outside of the base Inside, the V-shaped clip is positioned therein. The semi-open drill shank clamp according to claim 1 further has a power source connected to the other end of the ram to push the ram into the pedestal. Reciprocating. A semi-open drill shank clamp for holding and fixing a shank of a drill for grinding the drill body of the drill, comprising: a base, one side of which corresponds to the handle of the drill And a fixing portion is formed on the other side, and the fixing portion is perpendicular to the fixing piece; the V-shaped clip is disposed on the fixing portion, and the V-shaped clip is provided with a first Forming a V-shaped abutment surface by a hinge surface and a second abutment surface, wherein a set angle is provided for abutting against two sides of the handle portion of the drill needle; and a clamping seat is disposed on the fixing surface The top surface of the holder is integrally formed with a movable piece, and a connecting portion and an elastic portion are disposed between the movable piece and the clamping seat, and the movable piece is pushed toward the V shape by the elastic portion. a clip having a third abutment surface, the clamping seat being provided with a reference surface for abutting against a bottom of the drill to obtain a reference length thereof; and a plunger having an activity at the base Inside the seat, and one end of the jack is connected to the movable piece; when the bur is clamped, the ejector is retracted into the base, and the living is Resilience of the moving piece causes the third abutting surface to move laterally, and the first abutting surface and The second abutting surface forms a two-line shape to clamp and fix the handle of the drill pin; when released, the plunger extends out of the clamping seat and abuts against the movable piece to swing it in the opposite direction It is in an expanded state. The semi-open drill shank clamp according to claim 9, wherein the elastic portion is formed by a continuous plurality of bends, and the side view is in the form of a crepe needle.