CN211589454U - Rotary grinding device for drill bit - Google Patents

Abstract

The utility model discloses a rotary drill bit grinding device, which comprises a drill bit rotating mechanism and a drill bit grinding mechanism, wherein the drill bit rotating mechanism mainly comprises a rotary driven component and a rotary driving component, and the rotary driven component comprises a base, a rotary supporting seat arranged on the base and rotary driven wheel groups respectively arranged at two ends of the rotary supporting seat; the rotary driving component comprises a connecting plate, a rotary driving motor, a rotary transmission structure connected with the rotary driving motor, a rotary driving wheel arranged above the rotary supporting seat and connected with the rotary transmission structure, and an upward pushing driving component connected with the upper end part of the connecting plate; the drill bit grinding mechanism comprises a drill bit positioning component and a grinding wheel fine grinding component, wherein the grinding wheel fine grinding component comprises a grinding wheel rotating driving motor arranged on the machine table and a grinding wheel connected to an output shaft of the grinding wheel rotating driving motor and faces the drill bit positioning component. The utility model provides a rotatory grinder of drill bit realizes grinding drill bit most advanced periphery comprehensively, and improves and grinds the precision.

Description

Rotary grinding device for drill bit

Technical Field

The utility model relates to an automation equipment especially relates to a rotatory grinder of drill bit.

Background

The drill bit is a commonly used drilling tool and is formed by grinding and cutting a bar stock. The PCB micro drill is a micro drill for drilling a PCB, and as electronic products are lighter and thinner, the specification of the PCB micro drill is smaller and smaller in succession, and the corresponding precision requirement on the micro drill grinding equipment is higher and higher.

The main equipment for processing the PCB micro drill is a drill grinding machine tool, and because the PCB micro drill has small specification, the grinding equipment has very high requirement on processing precision. The existing drill bit grinding equipment is difficult to grind the drill bit comprehensively due to the structural limitation, and the drill bit is unstable to clamp and low in grinding precision frequently in the grinding process.

SUMMERY OF THE UTILITY MODEL

To the above, an object of the utility model is to provide a rotary drill grinding device realizes grinding the most advanced periphery of drill bit comprehensively, and improves and grinds the precision.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:

a rotary drill bit grinding device comprises a machine table and is characterized by further comprising a drill bit rotating mechanism arranged on the machine table and a drill bit grinding mechanism arranged on the machine table and located on the rear side of the drill bit rotating mechanism, wherein the drill bit rotating mechanism mainly comprises a rotary driven component and a rotary driving component arranged above the rotary driven component, and the rotary driven component comprises a base, a rotary supporting seat arranged on the base and rotary driven wheel groups respectively arranged at two ends of the rotary supporting seat; the rotary driving component comprises a connecting plate arranged on the machine table, a rotary driving motor arranged on the machine table, a rotary transmission structure connected with the output end of the rotary driving motor, a rotary driving wheel arranged above the rotary supporting seat and connected with the rotary transmission structure, and a push-up driving component connected with the upper end part of the connecting plate; the drill bit grinding mechanism comprises a drill bit positioning component arranged on the side edge of the rotary supporting seat and a grinding wheel fine grinding component arranged right in front of the drill bit positioning component, and the grinding wheel fine grinding component comprises a grinding wheel rotary driving motor arranged on the machine table and a grinding wheel which is connected to an output shaft of the grinding wheel rotary driving motor and faces the drill bit positioning component.

As a further improvement of the utility model, a drill bit rotary clamping groove is formed on the rotary supporting seat.

As a further improvement, the rotary driven wheel set is mainly formed by rotating two rotations arranged on the end part of the rotary supporting seat and arranged side by side from the driving wheel, and the two rotations are arranged on the end part of the rotary clamping groove of the drill bit from the driving wheel.

As a further improvement, the rotary transmission structure mainly comprises a driving gear disposed on the output end of the rotary driving motor, a driven gear disposed on the connecting plate, and a chain surrounding the driving gear and the driven gear, wherein the driven gear is disposed on the central shaft of the rotary driving wheel.

As a further improvement, the push-up driving assembly mainly comprises a counterweight block disposed on the upper end of the connecting plate and a push-up driving cylinder disposed on the machine table and connected to the counterweight block, and the piston rod of the push-up driving cylinder is connected to the counterweight block.

As a further improvement, the drill positioning assembly comprises a positioning forward pushing motor arranged on the machine table, a positioning forward pushing arm connected to an output shaft of the positioning forward pushing motor, and a positioning head arranged on the positioning forward pushing arm and facing the grinding wheel, and a positioning clamping groove is formed on the end face of the positioning head.

The utility model has the advantages that: the drill bit rotating mechanism is combined with the special structure of the drill bit grinding mechanism to form an automatic structure, the automation degree is high, the efficiency is high, the drill bit tip is rotated and ground simultaneously, and the periphery of the drill bit tip is ground comprehensively; and the drill bit in rotation is positioned, so that the drill bit is prevented from shaking greatly in the grinding process, and the grinding precision is improved.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the rotary driving wheel pressing on the rotary supporting seat of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of a part of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is a schematic structural view of the feeding funnel of the present invention;

fig. 7 is an enlarged view of a portion C in fig. 6.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

Referring to fig. 1, an embodiment of the present invention provides a drill rotary grinding device, which includes a machine platform, a drill rotary mechanism 3 disposed on the machine platform, and a drill grinding mechanism 4 disposed on the machine platform and behind the drill rotary mechanism 3. The drill bit rotating mechanism 3 drives the drill bit to rotate continuously, and the drill bit grinding mechanism 4 carries out comprehensive fine grinding on the periphery of the tip end of the drill bit in the rotating process of the drill bit.

In this embodiment, the drill rotating mechanism 3 and the drill grinding mechanism 4 can also be used in cooperation with a drill feeding mechanism 2 and a drill discharging mechanism 5 to complete the operations of feeding and discharging the drill. Specifically, drill bit feed mechanism 2 sets up on the board and is located drill bit rotary mechanism 3 front side, and drill bit discharge mechanism 5 sets up on the board and is located drill bit grinding mechanism 4 rear side. The drill bit feeding mechanism 2 feeds the drill bit to the drill bit rotating mechanism 3, and finally the drill bit discharging mechanism 5 finishes discharging operation.

In the embodiment, the drill rotating mechanism 3 mainly comprises a rotary driven component 31 disposed at the rear side of the drill feeding mechanism 2 and a rotary driving component 32 disposed above the rotary driven component 31, specifically, as shown in fig. 2 to 5, the rotary driven component 31 includes a base 311 disposed at the rear side of the drill feeding mechanism 2, a rotary supporting seat 312 disposed on the base 311, and a rotary driven wheel set 313 disposed at two ends of the rotary supporting seat 312 respectively. Specifically, a drill bit rotary clamping groove 3121 is formed on the rotary support base 312, and a drill bit loaded by the drill bit loading mechanism 2 moves onto the drill bit rotary clamping groove 3121; the rotary driven wheel group 313 is mainly formed by arranging two rotary driven wheels 3131 rotatably disposed at the end of the rotary supporting base 312 side by side, and when a rotary acting force is applied to the two rotary driven wheels 3131, the two rotary driven wheels 3131 can rotate along the rotary supporting base 312, and the two rotary driven wheels 3131 are located at the end of the bit rotary locking groove 3121, and when a bit is moved to the bit rotary locking groove 3121, the bit is also located between the two rotary driven wheels 3131.

Specifically, as shown in fig. 1 to fig. 3, the rotary driving element 32 includes a connecting plate 321 disposed on the machine, a rotary driving motor 322 disposed on the machine, a rotary transmission structure 323 connected to an output end of the rotary driving motor 322, a rotary driving wheel 324 disposed above the rotary supporting base 312 and connected to the rotary transmission structure 323, and a push-up driving element 325 connected to an upper end of the connecting plate 321. To facilitate the structure of the rotary driven component 31 to be clearly seen, fig. 1 is a schematic structural view of the rotary driving component 32 lifted upwards, and in actual operation, the rotary driving wheel 324 of the rotary driving component 32 presses on the rotary supporting seat 312, as shown in fig. 2 and 3.

Specifically, the rotation transmission structure 323 mainly comprises a driving gear disposed on the output end of the rotation driving motor 322, a driven gear 3232 disposed on the connecting plate 321, and a chain 3233 surrounding the driving gear and the driven gear 3232, wherein the driven gear 3232 is sleeved on the central shaft of the rotation driving gear 324. The driving force provided by the rotation driving motor 322 is transmitted to the rotation driving wheel 324 by the rotation transmission structure 323, so as to drive the rotation driving wheel 324 to rotate.

Specifically, the push-up driving assembly 325 mainly comprises a weight block 3251 disposed on the upper end of the connecting plate 321, and a push-up driving cylinder 3252 disposed on the machine and connected to the weight block 3251, wherein a piston rod of the push-up driving cylinder 3252 is connected to the weight block 3251. The weight 3251 is disposed to allow the upper end of the connecting plate 321 to sink downward, so that the rotary driving wheel 324 swings downward to press on the rotary supporting seat 312.

The rotary driving wheel 324 is driven to rotate on the rotary supporting seat 312 by the combination of the rotary driving motor 322 and the rotary transmission structure 323, and since the drill bit is cylindrical, the rotation of the rotary driving wheel 324 drives the drill bit to rotate, and at the same time, drives the four rotary driven wheels 3131 at the two ends of the rotary supporting seat 312 to rotate synchronously. Therefore, the rotary driving wheel 324 above the drill bit is combined with the four rotary driven wheels 3131 below the drill bit to drive the drill bit to synchronously and stably rotate, so that the tip of the drill bit can be conveniently ground.

When the grinding of one drill bit is completed, the driving cylinder 3252 pushes the driving roller 324 upward to move the driving roller 324 upward, and the drill bit is released and can be moved out. The next drill bit is moved to the rotary support 312, and the rotary driver 324 is pressed against the rotary support 312 to rotate the drill bit. Thus, the push-up actuating cylinder 3252 is configured to provide intermittent push-up force to the capstan 324, such that the capstan 324 can be switched between upward movement and downward movement.

In the embodiment, the drill grinding mechanism 4 includes a drill positioning component 41 disposed on the side of the rotary supporting seat 312, and a grinding wheel refining component 42 disposed right in front of the drill positioning component 41, specifically, as shown in fig. 2, the grinding wheel refining component 42 includes a grinding wheel rotary driving motor 421 disposed on the machine table, and a grinding wheel 422 connected to the output shaft of the grinding wheel rotary driving motor 421 and facing the drill positioning component 41. The drill bit tip is positioned by the drill bit positioning assembly 41, and the grinding wheel 422 is driven by the grinding wheel rotation driving motor 421 to rotate continuously, so as to grind the drill bit tip rotating continuously, thereby improving the precision of grinding the drill bit tip rotating.

Specifically, as shown in fig. 4 and 5, the drill positioning assembly 41 includes a positioning pushing motor 411 disposed on the machine platform, a positioning pushing arm 412 connected to an output shaft of the positioning pushing motor 411, and a positioning head 413 disposed at an end of the positioning pushing arm 412 and facing the grinding wheel 422, wherein a positioning slot 4131 is formed on an end surface of the positioning head 413. The positioning pushing motor 411 provides driving force to drive the positioning pushing arm 412 to move towards the grinding wheel 422, so that the tip of the drill bit which rotates continuously is clamped into the positioning clamping groove 4131, and the tip of the drill bit which is clamped into the positioning clamping groove 4131 rotates continuously but cannot swing left and right up and down, namely is limited in the positioning clamping groove 4131, so that the grinding wheel 422 can grind the tip of the drill bit accurately. After the grinding is completed, the positioning and pushing motor 411 drives the positioning and pushing arm 412 to move backward, so as to complete the discharging operation.

In this embodiment, as shown in fig. 4 and 5, the drill discharging mechanism 5 mainly comprises a material taking assembly 51 and a pushing discharging assembly 52 disposed on the material taking assembly 51, wherein the material taking assembly 51 mainly comprises a material taking base 511 disposed right in front of the rotating support base 312, a material taking arm 512 slidably disposed on the material taking base 511 and facing the rotating support base 312, and a material taking driving motor 513 disposed at the rear end of the material taking base 511 and connected to the rear end of the material taking arm 512, and a material taking loading slot 5121 is formed on the material taking arm 512. The material taking driving motor 513 drives the material taking arm 512 to slide on the material taking base 511, and when the end part of the material taking arm 512 extends out of the material taking base 511 and extends to the tip end of the ground drill bit, the drill bit is pushed to the material taking loading groove 5121 of the material taking arm 512 by the auxiliary driving force of the drill bit feeding mechanism 2; then, the material taking driving motor 513 drives the material taking arm 512 to retreat. Meanwhile, the pushing and discharging assembly 52 mainly comprises a discharging hopper 521 disposed on the side of the material taking base 511, a fixed connecting frame 522 fixedly disposed on the side of the material taking base 511, and a pushing and driving cylinder 523 erected on the material taking base 511 and located at the opening of the discharging hopper 521, wherein a piston rod of the pushing and driving cylinder 523 is connected to the fixed connecting frame 522, and a pushing block 524 is disposed at the lower end of the pushing and driving cylinder 523 and above the material taking arm 512. The material taking arm 512 retreats, so that when the drill bit moves to the opening of the discharge hopper 521, the pushing material driving cylinder 523 provides a driving force, and since the fixed connection frame 522 is fixed to the material taking base 511, the piston rod of the pushing material driving cylinder 523 pushes the pushing material driving cylinder 523 to move towards the discharge hopper 521, and the pushing block 524 at the lower end of the pushing material driving cylinder 523 pushes the drill bit into the discharge hopper 521, thereby completing the discharging operation.

In this embodiment, as shown in fig. 1, the drill feeding mechanism 2 includes a feeding rail 21 disposed at the front side of the rotary supporting seat 312, a feeding pushing assembly 22 disposed at the front end of the feeding rail 21, and a feeding hopper 23 disposed above the feeding rail 21, wherein a feeding slot 211 is formed in the length direction of the feeding rail 21; the feeding pushing assembly 22 mainly comprises a feeding pushing cylinder 221 and a feeding pushing rod 222 connected to the end of the piston rod of the feeding pushing cylinder 221 and movably inserted into the feeding groove 211; a vertical blanking channel 231 is formed at the lower end of the feeding funnel 23 and is located right above the feeding slot 211. After the drill bit falls from the feeding hopper 23 to the feeding groove 211 of the feeding rail 21 through the vertical blanking channel 231, the feeding push cylinder 221 drives the feeding push rod 222 to push the drill bit in the feeding groove 211 to the drill bit rotary clamping groove 3121 of the rotary supporting seat 312, and then the subsequent rotary grinding operation is completed. In order to facilitate the feeding accuracy, the feeding slot 211 and the drill bit rotary clamping slot 3121 are located on the same straight line.

In order to make the drill bits individually fall into the vertical blanking channel 231, as shown in fig. 6, in the present embodiment, a blanking push-down control assembly 24 is disposed on the feeding funnel 23, the blanking push-down control assembly 24 mainly comprises a blanking push-down driving cylinder 241 longitudinally disposed on the outer side edge of the feeding funnel 23, and a driving head 242 connected to the lower end portion of the piston rod of the blanking push-down driving cylinder 241, a blanking push-down part 2421 embedded in the feeding funnel 23 is connected to the side end portion of the driving head 242, and the blanking push-down part 2421 is located at the upper end opening of the vertical blanking channel 231. During feeding, the drill bits are placed in the feeding hopper 23, and the drill bits are stacked at the opening at the upper end of the vertical blanking channel 231 under the action of gravity. The blanking push-down driving cylinder 241 of the blanking push-down control component 24 drives the driving head 242 to reciprocate up and down. Specifically, when the driving head 242 moves upward, the blanking pushing part 2421 connected to the side end part of the driving head 242 swings downward; when the driving head 242 moves downward, the blanking pushing-down part 2421 swings upward; the driving head 242 reciprocates up and down to drive the blanking pushing part 2421 to swing up and down. When the blanking pushing-down part 2421 swings up and down, one drill bit stacked at the opening at the upper end of the vertical blanking channel 231 is pushed down into the vertical blanking channel 231, so that one drill bit falls into the vertical blanking channel 231 independently, and the fact that one drill bit is fed to the feeding groove 211 of the feeding rail 21 independently is guaranteed.

Specifically, as shown in fig. 7, an upper protrusion 24211, a middle protrusion 24212 and a lower protrusion 24213 are sequentially formed on the blanking lower pushing part 2421 from top to bottom, a recess 24214 is formed between the upper protrusion 24211 and the middle protrusion 24212, a lower inclined surface 242141 is formed on the recess 24214, and the lower inclined surface 242141 is inclined towards the upper end opening direction of the vertical blanking channel 231. During the up-and-down reciprocating swing action of the blanking pushing part 2421, the drill bits on the side of the upper convex part 24211 are pushed to the lower left by the upper convex part 24211, meanwhile, the drill bits on the side of the middle convex part 24212 are pushed to the lower left by the middle convex part 24212, and the drill bits on the side of the lower convex part 24213 are pushed into the vertical blanking channel 231 by the lower convex part 24213. From this, cooperate by sectional type push action, realize pushing into vertical blanking passageway 231 with an orderly root of drill bit, finally be convenient for realize on the orderly solitary material loading of a root of drill bit is to feeding chute 211 of material loading track 21.

Meanwhile, in the present embodiment, the width of the vertical blanking channel 231 matches the size of the drill bit, so that the width of the vertical blanking channel 231 can only accommodate one drill bit to fall.

In order to facilitate the step-by-step pushing action to realize the blanking action, in the present embodiment, the feeding funnel 23 has a vertical inner wall surface 232 and an inclined inner wall surface 233 which are oppositely disposed, the vertical blanking channel 231 is formed at the lower ends of the vertical inner wall surface 232 and the inclined inner wall surface 233, and the vertical inner wall surface 232 is provided with a movable opening 2321 for the blanking pushing-down part 2421 to be inserted and to move. The blanking pushing part 2421 swings up and down in a reciprocating manner at the movable opening 2321, and the inner bottom of the movable opening 2321 is used as a reference point, so that the blanking pushing part 2421 is driven to swing up and down in a reciprocating manner by the up and down reciprocating swing of the driving head 242.

It should be noted that the utility model discloses a rotatory grinder of drill bit improves specific structure, and to concrete control mode, is not the innovation point of the utility model. To various drive cylinders, driving motors and other parts that the utility model relates to, can be general standard or the part that technical staff knows, its structure, principle and control mode are known or are known through routine experimentation to technical staff of technical staff.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims (6)

1. A rotary drill bit grinding device comprises a machine table and is characterized by further comprising a drill bit rotating mechanism arranged on the machine table and a drill bit grinding mechanism arranged on the machine table and located on the rear side of the drill bit rotating mechanism, wherein the drill bit rotating mechanism mainly comprises a rotary driven component and a rotary driving component arranged above the rotary driven component, and the rotary driven component comprises a base, a rotary supporting seat arranged on the base and rotary driven wheel groups respectively arranged at two ends of the rotary supporting seat; the rotary driving component comprises a connecting plate arranged on the machine table, a rotary driving motor arranged on the machine table, a rotary transmission structure connected with the output end of the rotary driving motor, a rotary driving wheel arranged above the rotary supporting seat and connected with the rotary transmission structure, and a push-up driving component connected with the upper end part of the connecting plate; the drill bit grinding mechanism comprises a drill bit positioning component arranged on the side edge of the rotary supporting seat and a grinding wheel fine grinding component arranged right in front of the drill bit positioning component, and the grinding wheel fine grinding component comprises a grinding wheel rotary driving motor arranged on the machine table and a grinding wheel which is connected to an output shaft of the grinding wheel rotary driving motor and faces the drill bit positioning component.

2. The rotary drill bit grinding device as claimed in claim 1, wherein a drill bit rotary locking groove is formed on the rotary support base.

3. The rotary drill bit grinding device as claimed in claim 2, wherein the rotary driven wheel set is mainly formed by arranging two rotary driven wheels side by side, which are rotatably arranged on the end of the rotary supporting seat, and the two rotary driven wheels are positioned on the end of the rotary drill bit clamping groove.

4. The rotary drill bit grinding device as claimed in any one of claims 1 to 3, wherein the rotary transmission structure comprises a driving gear disposed at the output end of the rotary driving motor, a driven gear disposed on the connecting plate, and a chain surrounding the driving gear and the driven gear, wherein the driven gear is disposed on the central shaft of the rotary driving gear.

5. The rotary drill bit grinding device as claimed in any one of claims 1 to 3, wherein the push-up driving assembly comprises a weight block disposed on the upper end of the connecting plate, and a push-up driving cylinder disposed on the machine table and connected to the weight block, the piston rod of the push-up driving cylinder being connected to the weight block.

6. The rotary drill bit grinding device as claimed in any one of claims 1 to 3, wherein the drill bit positioning assembly includes a positioning pushing motor disposed on the machine platform, a positioning pushing arm connected to an output shaft of the positioning pushing motor, and a positioning head disposed at an end of the positioning pushing arm and facing the grinding wheel, and a positioning slot is formed on an end surface of the positioning head.

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