TWM472587U - Blade rod retaining device of drill bit grinding machine - Google Patents

Description

Blade edge guard for drilling edge grinder

The invention relates to the technical field of a grinding mechanism, in particular to a blade guarding device for a cutting edge grinding machine.

According to the micro drill, the drill bit with the diameter of the drill blade can be reduced to about 0.1 mm. It has been widely used in the drilling of printed circuit boards, but the tip of the drill has been used after many times of use. It is easy to wear and damage, and the drill bit is unusable. In order to prolong the service life of the drill bit, the current stage is to re-use the blade of the worn drill bit by a grinder to make the blade of the drill bit recoverable for drilling. Chisel the correct aperture.

At present, when the above-mentioned fine drill is subjected to grinding by the grinder, in order to prevent the blade from being broken due to shaking during grinding, in order to ensure the grinding quality of the drill, the blade is usually clamped and fixed, as disclosed in Taiwan Patent No. M408447. The utility model relates to an automatic opening and closing device for grinding a socket for a micro drill bit, which is to convert the operation state between the opening and closing members of the bearing seat into a cycloidal operation by a conventional straight line operation, and shorten the opening while maintaining the linear driving force. The movement stroke between the components is kept to maintain the positioning firmness of the blade.

However, although the above patented technology can effectively solve the problem of the conventional blade rod clamping and fixing, it breeds a problem that the structure is too complicated.

In view of this, the purpose of the present invention is to provide a blade guard for a drill edge grinder to improve the structural complexity of a conventional drill guard.

Specifically, the technical means of the blade guarding device of the novel drill blade grinding machine comprises: a micro drill bit, the blade rod is clamped on a clamp drill, And exposing a blade portion of the front end of the blade, the clamper driving the micro drill bit to move along a path of the cutting edge to a grinding point; a grinding machine disposed at a periphery of the moving path of the cutting edge, the grinding machine having a grinding wheel The group moves along a grinding path through a grinding point, where the grinding point is the intersection of the cutting path and the grinding path; a holder is included in a fixed end sliding group, a sliding table, and a pillow is arranged on the sliding table Seat, the pillow seat is located adjacent to a first end side of the grinding point, the sliding table is driven by a first driver to move the pillow seat to contact the outer edge of the blade edge beside the blade; and a presser comprising a pivot a swing arm disposed at a fixed end, the one end of the swing arm forming a pressing portion, the pressing portion is adjacent to a second end side of the grinding point, and the swing arm is driven and restrained by a second driver to press The holding portion elastically contacts the outer wall of the blade bar beside the blade.

Accordingly, the present invention is a device which is suitable for the blade of a fine drill bit to be clamped by a clamper and moved along an arc to receive the blade portion of the fine drill bit, compared with the conventional fine drill bit which is moved by a cycloid to receive the grinding device. It is said that it has the advantage of simple construction, and the clip driller can avoid interference with other components during the movement of the gripping blade.

In a further implementation, the clip drill is disposed on a turntable having a fixed-rotation capability that is an arc path in an equal circumference that moves the fine drill bit on the gripper via the turntable. According to this, the turntable can be configured to carry out the operations of gripping, detecting, grinding and releasing the drill bit by sequentially arranging a plurality of clip drills, thereby reducing waste of working hours and increasing the grinding of the cutting edge grinder. Work efficiency.

In a further implementation, the polishing point is a cutting edge formed by the first blade surface and the second blade surface respectively polished by the blade portion receiving the grinding wheel set. Accordingly, the first blade surface and the second blade surface located around the cutting edge are polished by the grinding wheel set in a moving manner.

In a further implementation, the grinding path is a straight path. Accordingly, the first blade surface and the second blade surface of the grinding blade portion of the grinding wheel group are facilitated.

In a further implementation, the first actuator comprises a ball screw driven by a stepper motor. Accordingly, the amount of displacement of the pillow seat is precisely controlled.

In a further implementation, the outer wall of the blade has a circular shape, and the pillow has a V-shaped groove. The pressing portion is a flat surface, and the outer wall of the blade is held in a point contact manner between the V-shaped groove and the planar pressing portion. Accordingly, the V-shaped groove and the pressing portion form a three-point contact with the outer wall of the blade, thereby increasing the stability of the blade when receiving the V-shaped groove and the holding portion.

In a further implementation, the first end side and the second end side of the polishing point are in collinear relationship with each other. Accordingly, the pillow seat and the pressing portion are shielded from the outer wall of the blade rod at the polishing point by the opposing direction, thereby preventing the blade lever from interfering with the pillow seat and the pressing portion when the blade rod is displaced by the clamper.

In a further implementation, the second driver comprises a coil spring and a pneumatic cylinder disposed on both sides of the swing arm, wherein the coil spring drives the pressing portion of the swing arm to elastically contact the outer wall of the blade rod, and the pneumatic cylinder drives the swing arm The pressing portion releases the outer wall of the blade. Accordingly, the coil spring and the pneumatic cylinder drive the pressing portion to contact and release the blade.

The above content and subsequent implementations and drawings are briefly described. It is to further explain the technical means adopted by the new model to solve the problem and the effects it can produce. The relevant details of the present invention that can be implemented will also be explained in the subsequent detailed description and drawings.

10‧‧‧Micro drill

101‧‧‧ Blade

102‧‧‧blade

103‧‧‧First face

104‧‧‧second blade

105‧‧‧The heart of the heart

11‧‧‧Clamp drill

111‧‧‧Drill path

112‧‧‧ grinding point

12‧‧‧ turntable

20‧‧‧ Grinder

21‧‧‧ grinding wheel set

22‧‧‧ Grinding path

30‧‧‧ Bearings

31‧‧‧ slide table

31a‧‧‧Longitudinal slide

31b‧‧‧Horizontal slide

31a1‧‧‧ longitudinal rails

31b1‧‧‧ Horizontal rails

32‧‧‧ pillow seat

321‧‧‧V-groove

33‧‧‧First drive

331‧‧‧Stepper motor

332‧‧‧Ball lead screw

34‧‧‧Coupling

35‧‧‧Horizontal adjustment lever

351‧‧‧Compressed spring

40‧‧‧ suppressor

41‧‧‧ swing arm

411‧‧‧ Pressure holding department

42‧‧‧second drive

421‧‧‧Helical spring

422‧‧‧ pneumatic cylinder

4221‧‧‧Cylinder rod

50‧‧‧ fixed end

1 is a top plan view of a preferred embodiment of the present invention.

Figure 2 is a perspective view of Figure 1.

Figure 3 is a front elevational view of Figure 2.

Figure 4 is a cross-sectional view taken along line A-A of Figure 3;

Figure 5 is a cross-sectional view taken along line B-B of Figure 3;

Figure 6 is a cross-sectional view taken along line C-C of Figure 3;

Fig. 7 is a partial enlarged view of the blade lever of Fig. 1 when it is subjected to holding.

8 to 10 are schematic views of the operation of FIG. 3 in sequence.

Referring to FIG. 1 and FIG. 2 together, a preferred embodiment of the present invention is disclosed to illustrate a blade guarding device for a cutting edge grinder provided by the present invention, comprising a micro drill bit 10, a grinder 20, and a bearing The device 30 and a suppressor 40. Wherein: the micro drill bit 10 is clamped to a clamp drill 11 via its blade 101, and the clamp drill 11 is disposed on a turntable 12, which can be on an equal circumferential path. An intermittent action of accurately positioning and rotating displacement between a plurality of specific angles, thereby causing the clipper 11 to drive a blade portion 102 at the front end of the blade 101 along a cutting edge moving path 111, and the cutting edge moving path 111 means that the blade portion 102 is centered on the turntable 12 and moves along an arc path in an equal circumference, and the cutting edge moving path 111 passes through a grinding point 112, which in practice refers to the blade portion 102. The first blade face 103 and the second blade face 104 respectively extend to form a core 105 (shown in FIG. 9).

The grinder 20 is disposed around the cutting edge movement path 111. The grinder 20 has a grinding wheel set 21. In practice, the grinding wheel set 21 includes a first blade face 103 and a second for polishing the blade portion 102. The grinding wheel set 21 is displaced along a grinding path 22 in a linear path, and the grinding path 22 passes through the grinding point 112. Therefore, the grinding point 112 is the cutting edge moving path 111 and the grinding path 22 The intersection point, and when the grinding wheel set 21 passes the grinding point 112, the two grinding wheels located in the grinding wheel set 21 grind the first blade face 103 and the second blade face 104 of the blade portion 102 which is also located on the grinding point 112.

Referring to FIG. 3, FIG. 4 and FIG. 6, the holder 30 includes a sliding table 31 which is slidably disposed on a fixed end 50, and the sliding table 31 includes a longitudinal sliding table 31a and a longitudinal displacement capability. The transverse slide 31b has a lateral displacement capability; wherein the longitudinal slide 31a is slidably disposed on the fixed end 50 via a longitudinal slide 31a1, and the transverse slide 31b is slidably disposed on the longitudinal slide 31a via a transverse slide 31b1. A pillow seat 32 is disposed on one end of the sliding table 31, and the pillow seat 32 is adjacent to a first end side of the grinding point 112, the first end The side refers to the side of the cutting path moving path 111 passing through the grinding point 112, where the first end side refers to the lower side of the grinding point 112, and the pillow seat 32 is driven by the first driving unit 33 by the longitudinal sliding table 31a. Moving along the longitudinal rail 31a1 to contact the outer wall of the blade 101, in practice, the first actuator 33 includes a ball screw 332 driven by a stepper motor 331 to precisely control the amount of longitudinal displacement of the pillow 32. Further, the stepping motor 331 is connected to the ball lead screw 332 by a coupling 34. In addition, the present invention further includes a lateral adjustment rod 35, which is a screw, one end of which is pivotally mounted on the longitudinal slide 31a, and the other end is implanted in the transverse slide 31b, and is disposed on the longitudinal slide The lateral slide 31b1 between the 31a and the lateral slide 31b enables the operator to drive the lateral slide 31b to laterally shift by rotating the lateral adjustment lever 35, and adjust the position of the pillow 32 when the support 21 is turned from below. When the position of the blade 101 is moved, the blade 101 can be accurately placed in the pillow 32. In addition, the transverse slide 31b is fixedly disposed at a opposite end of the lateral adjustment rod 35 with a compression spring 351 for holding and fixing the transverse slide 31b on the longitudinal slide 31a by the spring pressure of the compression spring 351, thereby increasing the fine drill bit. 10 Stability when subjected to grinding.

Referring to FIG. 3 and FIG. 5, the suppressor 40 includes a swing arm 41 pivotally mounted on the fixed end 50. The end of the swing arm 41 forms a pressing portion 411. The pressing portion 411 is adjacent to the swinging portion 411. a second end side of the polishing spot 112, wherein the first end side and the second end side are in a collinear relationship, wherein the second end side refers to the upper side of the polishing point 112, thereby making the pressing portion The 411 and the pillow 32 are oppositely supported by the blade 101 at the grinding point 112. The swing arm 41 is disposed at the opposite end of the pressing portion 411 with a second driver 42. The second driver 42 includes a coil spring. 421 and a pneumatic cylinder 422. The holding portion 411 is urged toward the position of the blade 101 via the swing arm 41 by the spring pressure of the coil spring 421, and the pressing portion 411 is elastically contacted with the outer wall of the blade 101. The pneumatic cylinder 422 is disposed on the swing arm 41. Located on the opposite side of the coil spring 421, the cylinder rod 4221 is driven by the pneumatic cylinder 422 to drive the pressing portion 411 via the swing arm 41. The blade 101 is released to facilitate the gripper 11 to remove the finely drilled micro drill 10 and to move the fine drill 10 to be ground.

Next, referring to FIG. 7, the outer wall of the blade 101 is circular in implementation. When the blade 101 receives the V-shaped groove 321 formed on the pillow 32 and the flat pressing portion 411, the blade is pressed. A stable three-point contact is formed between the outer wall of the 101 and the V-shaped groove 321 and the pressing portion 411, and the stability of the blade 101 when the blade portion 102 is subjected to grinding is increased by the three-point contact holding action to maintain the blade portion 102. Grinding quality.

According to the above configuration, please refer to FIG. 8 to FIG. 10, and the action diagram of the present invention is sequentially disclosed, and the pillow seat 32 is illustrated when the gripper 11 holds the fine drill bit 10 and moves along the cutting edge moving path 111 to the grinding point 112. Moving toward the position of the fine drill 10 in a bottom-up manner (as shown in FIG. 8), when the blade 101 of the fine drill 10 enters the V-shaped groove 321 of the pillow 32, the pressing portion 411 passes through the swing arm 41. The oscillating movement moves toward the position of the fine drill 10 from the top to the bottom (as shown in FIG. 9), and the pillow 32 and the pressing portion 411 hold the outer wall of the blade 101 of the fine drill 10 through contact from below and above, respectively. After being fixed (as shown in FIG. 10), the blade portion 102 of the fine drill bit 10 located at the polishing spot 112 is polished along the polishing path 22 by the grinding wheel set 21.

According to the description of the above embodiments, the present invention moves the fine drill bit to the polishing point along the moving path of the cutting edge by the clamp drill, and protects the outer wall of the blade by the pillow seat and the pressing portion disposed on the opposite side of the grinding point, thereby avoiding The clamp drill interferes with the pillow seat and the pressing portion during the movement of the clamping blade rod, and controls the displacement of the pillow seat toward the blade rod by driving the ball lead screw through the stepping motor, compared with the traditional drill edge protection. In terms of the device, it has the advantage of being simple in construction.

In the above, the present invention is only intended to be a preferred embodiment of the present invention, and is not intended to limit the present invention; any equivalent modifications or substitutions that are not departing from the spirit of the present invention should be included in the following patent application. Within the scope.

10‧‧‧Micro drill

11‧‧‧Clamp drill

111‧‧‧Drill path

112‧‧‧ grinding point

12‧‧‧ turntable

20‧‧‧ Grinder

21‧‧‧ grinding wheel set

22‧‧‧ Grinding path

30‧‧‧ Bearings

35‧‧‧Horizontal adjustment lever

40‧‧‧ suppressor

50‧‧‧ fixed end

Claims (9)

A blade guarding device for a edge grinding machine, comprising: a micro drill bit, the blade rod is clamped on a clamp drill, and a blade portion of the front end of the blade is exposed, and the clamp drill drives the micro drill bit along a drill The blade moving path moves to a grinding point; a grinding machine is disposed at a periphery of the cutting blade moving path, the grinding machine is provided with a grinding wheel set moving along a grinding path through the grinding point, the grinding point is the cutting edge moving path An intersection with the grinding path; a holder comprising a fixed end sliding group and a sliding table, wherein the sliding table is provided with a pillow seat adjacent to a first end side of the grinding point, the sliding table Receiving a driving of a first driver to move the pillow seat to contact the outer wall of the blade beside the blade; and a suppressor comprising a swing arm pivoted at the fixed end, the one end of the swing arm forming a pressing portion, the pressing The adjacent portion is located on a second end side of the grinding point, and the swing arm is driven and restrained by a second actuator to elastically contact the pressing portion with the outer wall of the blade pole beside the blade. The blade guarding device of the edge grinding machine according to claim 1, wherein the clamping drill is disposed on a turntable having a fixed rotating capability, and the moving path of the cutting edge drives the finer on the clamp through the turntable. An arc path in the first circumference of the bit movement. The blade rod holding device of the edge grinding machine according to the first aspect of the invention, wherein the grinding point is a cutting edge formed by the first blade surface and the second blade surface which are respectively ground by the blade portion. The blade guarding device of the edge grinding machine of claim 1, wherein the grinding path is a straight path. The blade guard device of the edge grinder of claim 1, wherein the first driver comprises a stepping motor to drive the ball lead screw. The blade body protecting device of the edge grinding machine according to the first aspect of the invention, wherein the outer wall of the blade rod is circular, the pillow seat has a V-shaped groove, and the pressing portion In the plane, the outer wall of the blade rod is held in a point contact manner between the V-shaped groove and the flat pressing portion. The blade rod holding device of the edge grinding machine according to the first aspect of the invention, wherein the first end side and the second end side of the grinding point are in collinear relationship with each other. The blade lever holding device of the edge grinding machine according to the first aspect of the invention, wherein the second driver comprises a coil spring and a pneumatic cylinder disposed on both sides of one end of the swing arm. The blade rod holding device of the edge grinding machine according to the eighth aspect of the invention, wherein the coil spring driving the pressing portion of the swing arm elastically contacts the outer wall of the blade rod, the pneumatic cylinder drives the swing arm to release the blade portion of the pressing portion Outer wall.