JP3186748U - Automatic compensator for drill bit clamping - Google Patents

Abstract

Disclosed is an automatic compensation device for clamping a drill bit that can automatically compensate for a displacement distance when exchanging different drill bits and / or clamping tools, and can improve stability and production efficiency when clamping.
A pedestal 11, a first power source 12, a first feed base 13, a second power source 14, a second feed base 15, a return spring 16, and a clamping tool 17 are provided. A first rail 111 is provided on the pedestal, and a first feed base is installed thereon and connected to the first power source. The second rail 132 is provided on the first feed base, the second feed base is installed thereon, and the second feed base is connected to the second power via the inclined block 142, the linkage 152, and the return spring, respectively. Connect to the source and the first platform. The clamping tool is fixed to the top of the first feed base and the second feed base, respectively. When exchanging the drill bit, the first power source is moved horizontally by the first power source, the displacement distance between the clamping tool and the drill bit is automatically compensated, and the central axes of both are maintained coaxially.
[Selection] Figure 1

Description

  The present invention relates to the field of drill bit polishing apparatuses, and more particularly to an automatic compensator for holding a drill bit that holds and polishes drill bits having different dimensions.

Small drill bits are widely used for drilling precision punches such as electrical circuit boards. The external dimensions of this type of drill bit are 2.0 mm to 0.07 mm. Since this type of drill bit has a large ratio of length to diameter, the cutting sharpness decreases after the passage of time of use and affects the quality of the hole. Therefore, in order to reduce the cost, a cutting effect generally required by measures such as re-polishing a drill bit having a sufficient length has been obtained. In the re-polishing operation, a specially designed precision polishing apparatus is used to re-polish so that the sharpness meets the requirements, thereby reducing the use cost.
Furthermore, in order to ensure the stability of polishing, the precision polishing device according to the present invention uses a specially designed fixed vise or holding tool, and re-polish with the drill bit stably held, thereby improving the polishing quality. And the efficiency can be improved.

  Normally, the drill bit is in the open position when these fixed vise or clamp are stationary. When holding and fixing, the fixing vise or the holding tool is closed using an appropriate power source. When closing, the outer peripheral portion of the drill bit is stably held and fixed by a stable amount of holding force, so that vibration of high-speed polishing can be dealt with. For this reason, different-sized drill bits use a different-sized fixed vise or clamping tool.When grinding a different-sized drill bit, replace it with a different-sized fixed vise or clamping tool. After the replacement, the coaxial axis must be maintained so that the center axis of the drill bit and the fixed vise or the holding tool is not biased. In addition, the fixed vise or the holding tool is opened and closed once each time polishing is performed, so if the center axis is biased, the drill bit is biased due to imbalance in the clamping force, and lacks stability. Polishing quality deteriorates. Therefore, after replacing the fixed vise or the clamping tool, the center axis of the drill bit is fixed by adjusting the relationship between the drill bit of different dimensions and the central axis of the fixed vise or clamping tool in order to ensure the clamping effect. It must be placed on the center axis of the vice or the clamp. These adjustment operations take a lot of time and manpower, and polishing operations for small and mass production are no longer economical. A small amount of polishing work is still out of the question. For this reason, it is necessary to improve the above-mentioned drawbacks.

  One object of the present invention is to use a first power source to drive a clamping tool that clamps a drill bit so as to move in a limited way in both directions horizontally, and when changing a different drill bit and / or clamping tool, Quickly change the horizontal position of the tool, automatically compensate for the displacement distance with the drill bit, ensure stability when pinching, greatly simplify the adjustment process, reduce the time required for adjustment, production efficiency And an automatic compensator for clamping a drill bit, which can improve quality.

  In order to achieve the above-described object, the automatic compensator for clamping a drill bit according to the present invention is provided between a polishing device and a conveying device, and polishes by clamping and fixing the drill bit. By providing a pedestal provided with the first rail and a pedestal provided in the extending direction of the first rail, and providing a telescopic first drive shaft, the moving direction of the first drive shaft and the first rail are parallel to each other. One power source and a first rail connected to the first drive shaft so as to be able to move the first rail are provided adjacent to the first fixed portion and the second rail provided with the second fixed portion at the end portion. Further, by providing a second drive shaft that is fixed to the first feed base and the second fixing portion, the moving direction of the second drive shaft and the second rail are perpendicular to each other, and the end of the second drive shaft is inclined. A block is provided, and the inclined block is provided so as to be able to move the second rail and the second power source provided with the first tapered surface toward the second rail, and is provided to face the first fixing portion. The third fixing part and the roller in contact with the tapered surface were provided at the end part. And a second feed base that pulls the first fixed portion apart by traction of the second power source, and is provided between the second feed base and the first feed base. A return spring that pulls to the fixed part, a first clamping plate that is fixed to the first fixed part and that has a first clamping surface corresponding to the drill bit, and that is fixed to the third fixed part and corresponds to the drill bit. Provided with the second clamping surface, the first clamping surface and the second clamping surface are positioned on both sides of the drill bit center axis, respectively, and a second clamping plate for clamping the drill bit, A clamping tool that is fixed to the first feeding table and the second feeding table and clamps and fixes the drill bit. When exchanging drill bits and / or clamps with different dimensions, the first power source moves the first feed base in a limited manner to the displacement distance formed on one side relative to the original pulling position. By automatically compensating, one side of the drill bit and the holding tool can be drawn. Among them, a baffle plate and a push spring provided between the baffle plate and the first feed base are provided on the other side where the first rail faces the first power source.

  In one embodiment, the first clamping surface has a flat surface, and the second clamping surface has a V-shaped concave surface corresponding to the outer diameter of the drill bit. In another embodiment, the first clamping surface has a V-shaped concave surface corresponding to the outer diameter of the drill bit, the second clamping surface has a flat surface, and both are clamped from three surfaces. The drill bit can be fixed by the method. To accommodate different sized drill bits, the V-shaped concave surface may also have different dimensions. As an example, when the concave shape of the V-shape is 1.4 mm, it corresponds to a drill bit having an outer diameter of 1.05 mm to 2.0 mm. A V-shaped concave surface dimension of 0.7 mm corresponds to a drill bit having an outer diameter of 0.55 mm to 1.0 mm. When the V-shaped concave surface dimension is 0.35 mm, it corresponds to a drill bit having an outer diameter dimension of 0.25 mm to 0.5 mm. When the concave shape of the V-shape is 0.25 mm, it corresponds to a drill bit having an outer diameter of 0.2 mm to 0.35 mm. When the concave shape of the V-shape is 0.1 mm, it corresponds to a drill bit having an outer diameter of 0.07 mm to 0.15 mm.

FIG. 3 is a front structural view according to a preferred embodiment of the present invention. FIG. 3 is a rear view of a preferred embodiment of the present invention. FIG. 6 is a schematic diagram (part 1) of a clamping operation according to a preferred embodiment of the present invention. FIG. 6 is a schematic diagram (part 2) of the clamping operation according to the preferred embodiment of the present invention. It is the operation | movement aspect figure at the time of adjustment by preferable embodiment of this invention (the 1). It is the operation | movement aspect figure at the time of adjustment by the preferable embodiment of this invention (the 2).

  In order to further understand the contents of the present invention, the following description will be made with reference to the drawings.

(Embodiment)
1 to 6 show a schematic view of a structure viewed from various directions according to a preferred embodiment of the present invention, various operation modes at the time of clamping, and an operation schematic at the time of adjustment. As shown in the figure, in the embodiment, the automatic compensator 1 for holding a drill bit according to the present invention is provided between a polishing device (not shown) and a conveying device (not shown), and holds the drill bit 2 therein. And polish. The automatic compensator 1 for holding a drill bit includes a pedestal 11, a first power source 12, a first feed base 13, a second power source 14, a second feed base 15, a return spring 16, and a clamping tool 17. .

  Among them, the first rail 111 is provided on the pedestal 11, and the attachment jig 112 is provided outside the pedestal 11 along the extending direction of the first rail. Further, a baffle plate 113 and a push spring 114 are provided on the other side of the first rail 111 facing the first power source 14, and the push spring 114 is provided between the baffle plate 113 and the first feed base 13. ing.

  The first power source 12 uses a generally used stepping motor and is provided inside the mounting jig 112. The front end of the first power source 12 is provided with a retractable first drive shaft 121 so that the movement (extension / contraction) direction of the first drive shaft 121 is parallel to the first rail 111.

  The first feed base 13 is provided so as to be able to move the first rail 111, and one side wall of the first feed base 13 is connected to the first drive shaft 121. The table 13 can be slid limitedly in the horizontal direction by the first rail 111. Further, a first mounting portion 131 is provided on the uppermost surface of the first feed base 13 and a second rail 132 provided with a second mounting portion 133 at the end is provided adjacent to each other. The second rail 132 and the first rail 111 are provided. Are parallel to each other. For example, the second rail 132 may be provided on the fixed plate 134. Since the fixed plate 134 is fixed to the first feed base 13, the second rail 132 and the second fixed portion 133 are also located on the fixed plate 134.

  The second power source 14 is fixed to the second fixing part 133, the second power source 14 includes a second drive shaft 141, the moving direction of the second drive shaft 141 and the second rail 132 are perpendicular, An inclined block 142 is provided at the end of the drive shaft 141, and the inclined block 142 is provided with a tapered surface 1421 toward the second rail 132.

  The 2nd feed stand 15 is provided so that it can move on the 2nd rail 132, the 2nd feed stand 15 has the 3rd fixed part 151 provided facing the 1st fixed part 131, and a taper surface at the end part. And a linkage 152 provided with a roller 1521 in contact with 1421.

  Both ends of the return spring 16 are connected to the second feed base 15 and the first feed base 13, respectively.

  They are respectively installed on the first feed base 13 and the second feed base 15 to sandwich and fix the drill bit 2 and are mainly fixed to the first fixing portion 131. A sandwiching mechanism having a first sandwiching plate 171 provided with a sandwiching surface 1711 and a second sandwiching plate 172 fixed to the third fixing portion 151 and provided with a second sandwiching surface 1721 corresponding to the drill bit 2 In the tool 17, the first clamping surface 1711 and the second clamping surface 1721 are equally installed on both sides of the central axis of the drill bit 2, and the drill bit 2 is clamped therebetween. Further, in the present invention, the drill bit 2 is fixed from three surfaces. The first clamping surface 1711 has a flat surface, and the second clamping surface 1721 corresponds to the outer diameter of the drill bit 2. And has a V-shaped concave surface. Alternatively, the first clamping surface 1711 may have a V-shaped concave surface corresponding to the outer diameter of the drill bit 2, and the second clamping surface 1721 may have a flat surface. In particular, when the dimension of the V-shaped concave surface is 1.4 mm, it corresponds to the drill bit 2 having an outer diameter of 1.05 mm to 2.0 mm. A dimension of the V-shaped concave surface of 0.7 mm corresponds to the drill bit 2 having an outer diameter of 0.55 mm to 1.0 mm. Further, when the dimension of the V-shaped concave surface is 0.35 mm, it corresponds to the drill bit 2 having an outer diameter of 0.25 mm to 0.5 mm. Further, when the dimension of the V-shaped concave surface is 0.25 mm, it corresponds to the drill bit 2 having an outer diameter of 0.2 mm to 0.35 mm. Further, when the dimension of the V-shaped concave surface is 0.1 mm, it corresponds to the drill bit 2 having an outer diameter of 0.07 mm to 0.15 mm.

  As shown in FIGS. 3 and 4, since the second feed base 15 is constantly receiving the elastic biasing force of the return spring 16, the second feed base 15 is pulled in the direction of the first fixing portion 131 to be in a closed state. When pinching and fixing, the second drive shaft 141 of the second power source 14 is driven and extended downward, the inclined block 142 is moved downward, the roller 1521 is rotated along the taper of the tapered surface 1421, and the linkage 152 The second fixing portion 133 is moved in conjunction with each other, and the second feed base 15 is pulled away from the first fixing portion 131. Thus, the first clamping plate 171 and the second clamping plate 172 of the clamping tool 17 are separated and opened to prepare for the installation of the drill bit 2, and one side of the drill bit 2 is drawn to the first clamping plate 171. It is done. After the attachment is completed, the second drive shaft 141 of the second power source 14 is pulled upward, and the second feed base 15 is pulled and closed by the first fixing portion 131 by the elastic biasing force of the return spring 16. At this time, the second clamping plate 172 pushes the drill bit 2 toward the first clamping plate 171 to form clamping.

  When exchanging with a drill bit 2 of a different size, the drill bit 2 is originally drawn to the first clamping surface 1711, and the size after the exchange is different, so that the clamping tool 17 is displaced from the originally drawn part. A distance arises. The first power source 12 moves the first feed base 13 horizontally to the left or right by a predetermined distance, automatically compensates for the displacement distance, and ensures the drill bit 2 and the first clamping surface 1711 are attracted. . As shown in FIG. 5, when the drill bit 2 having a small size is replaced, the first power source 12 moves the first feed base 13 horizontally to the left by a predetermined distance so that the drill bit 2 and the holding tool 17 are moved. Compensate the displacement distance between. On the other hand, when exchanging the drill bit 2 having a large size as shown in FIG. 6, the first power source 12 moves the first feed base 13 horizontally to the right by a predetermined distance, and the drill bit 2 And the displacement distance between the holding tool 17 are compensated. In addition, the operator can adjust the amount of movement of the first power source 12 by manual operation, such as adjusting the drill bit 2 having different dimensions. As an example, when combined with a hand-held database, when exchanging the drill bit 2 or the holding tool 17, the compensation amount can be quickly adjusted, the adjustment process can be greatly simplified, and the adjustment time can be shortened. Further, the polishing efficiency and quality can be further improved.

DESCRIPTION OF SYMBOLS 1 Automatic compensator 11 of drill bit clamping 11 Base 111 1st rail 112 Mounting jig 113 Baffle plate 114 Push spring 12 1st power source 121 1st drive shaft 13 1st feed stand 131 1st fixed part 132 2nd rail 133 2nd Fixed portion 134 Fixed plate 14 Second power source 141 Second drive shaft 142 Inclined block 1421 Tapered surface 15 Second feed base 151 Third fixed portion 152 Joint 1521 Roller 16 Return spring 17 Holding tool 171 First clamping plate 1711 First Clamping surface 172 Second clamping plate 1721 Second clamping surface 2 Drill bit

Claims (5)

An automatic compensation device for holding a drill bit, which is provided between a polishing device and a conveying device and holds a drill bit for polishing,
A pedestal having a first rail;
A first power source fixed to the pedestal provided in the extending direction of the first rail, including a first drive shaft that can be extended and contracted;
A first rail connected to the first power shaft and provided to be able to move the first rail, and a first fixing portion and a second rail provided with a second fixing portion at a terminal portion are provided adjacent to each other. A feeding platform,
Fixed to the second fixed part, including a second drive shaft, the moving direction of the second drive shaft and the second rail are perpendicular, and an inclined block is provided at the end of the second drive shaft; The inclined block has a second power source provided with a tapered surface toward the second rail;
A third fixing portion provided so as to move the second rail and facing the first fixing portion; and a linkage provided with a roller in contact with the tapered surface at the end portion. A second feed base for pulling away the first fixed portion by pulling the second power source;
A return spring which is provided between the second feed base and the first feed base and pulls the second feed base and moves to the first fixed portion;
A first clamping plate fixed to the first fixing portion and provided with a first clamping surface corresponding to the drill bit; and a second clamping surface fixed to the third fixing portion and corresponding to the drill bit. Provided, the first clamping surface and the second clamping surface are respectively located on both sides of the center axis of the drill bit, and have a second clamping plate for clamping the drill bit, A clamp that is installed on the first feed base and the second feed base and clamps and fixes the drill bit; when exchanging the drill bit and / or the clamp with different dimensions, one side is The displacement distance formed with respect to the position pulled together with the clamping tool is automatically compensated by moving the first feed base horizontally by the first power source, and the center axis of the drill bit is clamped. An automatic compensation device for holding a drill bit, characterized by maintaining the central axis of the tool.   The first rail is provided with a baffle plate on the other side corresponding to the first power source, and a push spring provided between the baffle plate and the first feed base. 2. An automatic compensation device for clamping a drill bit according to 1.   The first clamping surface has a flat surface, the second clamping surface has a V-shaped concave surface corresponding to the outer diameter of the drill bit, and the drill bit is fixed by clamping from three surfaces. The automatic compensation device for holding a drill bit according to claim 1.   The first clamping surface has a V-shaped concave surface corresponding to the outer diameter of the drill bit, the second clamping surface has a flat surface, and the drill bit is fixed by a method of clamping from three surfaces. The automatic compensation device for holding a drill bit according to claim 1, wherein: When the dimension of the V-shaped concave surface is 1.4 mm, it corresponds to the drill bit having an outer diameter dimension of 1.05 mm to 2.0 mm, and when the dimension of the V-shaped concave surface is 0.7 mm, the outer diameter dimension. Corresponds to the drill bit of 0.55 mm to 1.0 mm, and when the dimension of the V-shaped concave surface is 0.35 mm, it corresponds to the drill bit of an outer diameter of 0.25 mm to 0.5 mm, and V When the dimension of the letter-shaped concave surface is 0.25 mm, it corresponds to the drill bit having an outer diameter dimension of 0.2 mm to 0.35 mm. When the dimension of the V-shaped concave surface is 0.1 mm, the outer diameter dimension 5. The automatic compensator for holding a drill bit according to claim 3 or 4, wherein the drill bit corresponds to the drill bit of 0.07 mm to 0.15 mm.

Images