Drilling equipment and method

Abstract

The present invention discloses a drilling processing device and method, comprising: a clamping device for clamping and fixing a workpiece to be processed; a drilling device, comprising a first drill bit and a second drill bit, wherein the first drill bit and the second drill bit are respectively located on the same axis on opposite sides of the workpiece to be processed, and the first drill bit and the second drill bit can drill holes independently. The present invention provides a drilling processing device and method, which can drill holes from both sides at the same time, has high drilling efficiency, long drill bit life, and good drilling effect.

Description

Technical Field

[0001] The invention relates to a parts processing equipment and a processing technology, and in particular to a processing equipment and a method for drilling holes. Background Art

[0002] Nowadays, drilling is basically done from one side, which takes a long time and is inefficient, causing the drill to overheat and have a short service life. Another problem is that when drilling from one side, the debris is not easy to be removed due to the long drilling path, and the coolant is not easy to cool the drill, which not only leads to poor drilling results, but also shortens the life of the drill. Summary of the invention

[0003] In view of the above problems, the present invention provides a drilling processing device and method, which can drill holes from both sides simultaneously, with high drilling efficiency, long drill bit life and good drilling effect.

[0004] The present invention is achieved by the following scheme:

[0005] The present invention provides a drilling processing equipment, which is characterized by comprising: a clamping device for clamping and fixing a workpiece to be processed; a drilling device, including a first drill bit and a second drill bit, wherein the first drill bit and the second drill bit are located on the same axis on both sides of the workpiece to be processed, and the workpiece to be processed is drilled in opposite directions at the same time.

[0006] Preferably, the diameter of the first drill bit is larger than the diameter of the second drill bit, and the two drill bits drill holes in opposite directions simultaneously. Before drilling through, the second drill bit first withdraws from the hole, and the first drill bit continues drilling until drilling through.

[0007] Preferably, a third drill bit is further included, and the third drill bit is located beside the first drill bit and the second drill bit to perform secondary processing on the inner surface of the drill hole.

[0008] Preferably, the clamping device comprises:

[0009] A clamping body, wherein the clamping body is provided with a clamping station for placing a workpiece to be clamped, and the clamping body is also provided with a sliding groove, and the sliding groove is communicated with the clamping station;

[0010] A pushing member, the pushing member can slide in the sliding groove, and the pushing member is provided with a recessed position and a top contact position;

[0011] A clamping member, which is an elastic member, is located at the connection between the sliding groove and the clamping station. When the pushing member slides, it will push against the clamping member to move it toward the clamping station, so that the workpiece to be clamped is clamped between the clamping member and the clamping station.

[0012] Preferably, the clamping member is provided with a recessed section and a top contact section corresponding to the recessed position and the top contact position on the pushing member. When the pushing member slides, it will press against the clamping member to move it toward the clamping station, so that the workpiece to be clamped is clamped between the clamping member and the clamping station.

[0013] Preferably, the clamping member includes a connecting end and a free end, the free end can rotate around the connecting end under the action of the pushing member, the free end is divided into two parts, such that the upper and lower parts are elastic under the action of external force, and the top contact section is located at this end of the upper and lower parts.

[0014] The present invention also provides a drilling method, comprising the following steps:

[0015] S1. Firmly clamp the workpiece to be processed in the clamping device;

[0016] S2, using two drill bits located on the same axis to drill holes in the workpiece at the same time;

[0017] S3. Before the two drill bits drill through, the drill bit on one side is withdrawn first, and the drill bit on the other side continues to drill until the workpiece is drilled through.

[0018] Preferably, in step S2, the two drill bits lightly drill a certain position before drilling, and then start drilling.

[0019] Preferably, the two drill bits have a larger diameter and a smaller diameter, and the drill bit with a smaller diameter withdraws from the drilling first, while the drill bit with a larger diameter continues drilling until the workpiece to be processed is drilled through.

[0020] Preferably, the method further includes step S4: performing secondary processing of the borehole with a drill bit, for drilling through the borehole that was not drilled through in the previous process and further smoothing the inner surface of the borehole, and the diameter of the drill bit is consistent with the larger diameter drill bit used in the previous process.

[0021] After adopting the above technical solution, the present invention has the following beneficial effects:

[0022] The drilling processing equipment and method provided by the present invention can drill holes from both sides of the workpiece at the same time, which reduces the drilling time, has high work efficiency, reduces the heat generation of the drill bit, prolongs the service life of the drill bit, facilitates the extraction of drilling debris, and improves the drilling effect. On this basis, two drill bits are used, one large and one small. When drilling, the small drill bit is withdrawn first, and the large drill bit continues to drill until it penetrates the workpiece. The requirements for the centering of the two drill bits are not too high, and the large drill bit can further correct the inner surface of the drill hole to push out the debris. The third through-hole drill bit can drill through the hole that has not been drilled through, and can also further correct the drill hole to reduce burrs on the inner surface of the drill hole. The clamping device provided by the present invention can realize the firm clamping of multiple workpieces at the same time by providing a sliding groove and a pushing member. It is not only simple in structure, but also stable in operation and long in service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other purposes, features and advantages of the present invention will become more apparent through the detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the accompanying drawings are not deliberately scaled to the actual size, but the focus is on illustrating the gist of the present invention.

[0024] Figure 1 This is a working schematic diagram of a drilling device according to a preferred embodiment of the present invention;

[0025] Figure 2 This is a working schematic diagram of a drilling device according to a preferred embodiment of the present invention;

[0026] Figure 3 A schematic cross-sectional view of a preferred embodiment of the present invention when drilling a hole;

[0027] Figure 4 This is a working schematic diagram of the clamping device according to a preferred embodiment of the present invention;

[0028] Figure 5 This is a working schematic diagram of the clamping device according to a preferred embodiment of the present invention;

[0029] Figure 6 This is a split diagram of a clamping device according to a preferred embodiment of the present invention;

[0030] Figure 7 This is a structural diagram of the clamping body of a preferred embodiment of the present invention;

[0031] Figure 8 This is a structural diagram of a clamping member in a preferred embodiment of the present invention;

[0032] Fig. 9 This is a structural diagram of a pusher according to a preferred embodiment of the present invention.

[0033] Figure numerals: 1. Clamping body; 11. Clamping station; 12. Sliding groove; 13. Pin hole; 2. Pushing member; 21. Recessed position; 22. Top contact position; 3. Clamping member; 31. Connecting end; 32. Free end; 33. Recessed section; 34. Top contact section; 35. Clamping section; 4. Pin column; 5. Drilling device; 51. First drill bit; 52. Second drill bit; 6. Workpiece to be processed. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0035] The present invention provides a drilling processing device for drilling a through hole on a workpiece 6 to be processed, which includes: a clamping device for clamping and fixing the workpiece 6 to be processed to prevent the workpiece 6 to be processed from moving during drilling; a drilling device 5, including a first drill bit 51 and a second drill bit 52, the first drill bit 51 and the second drill bit 52 are respectively located on the same axis on opposite sides of the workpiece 6 to be processed, and the first drill bit 51 and the second drill bit 52 can drill holes independently. The two drill bits mentioned in the present invention are located on the same axis, which does not mean that they are strictly on the same straight line, but are basically located on the same axis and can deviate slightly from the same axis. That is, the two drill bits will drill holes in the workpiece on a straight line to ensure that the drilled through holes are basically on a line. In current drilling processing, the through hole is basically drilled from one side, so the drilling time is long and the efficiency is low. In addition, the coolant is not easy to cool the drill bit, resulting in serious heating of the drill head and a short service life. In addition, drilling on one side is not easy to guide the debris due to the long drilling path, which not only leads to poor drilling effect, but also affects the life of the drill bit. The drilling processing equipment provided by the present invention can drill holes from both sides at the same time, which greatly shortens the drilling time, is highly efficient, can prevent the drill bit from overheating, and is also easy to remove debris. When drilling, the two drill bits can drill at the same time at the beginning. When it is close to drilling through, the drill bit on one side will withdraw first, and the drill bit on the other side will continue to drill until it is drilled through and extends out of the workpiece. In this way, the rear drill bit will drill the hole drilled by the front rotating head again, making the inner surface of the hole smoother and also taking out the debris inside the hole. In addition, even if the two drill bits are not strictly in a straight line, the rear drill bit will continue to drill forward after drilling through, which will correct the hole drilled by the front drill bit, and the hole drilled after penetrating the workpiece will basically be a straight hole.

[0036] The diameter of the first drill bit 51 is larger than the diameter of the second drill bit 52. When drilling, the two drill bits drill oppositely at the same time. Before drilling through, the second drill bit 52 first withdraws from the drilling, and the first drill bit 51 continues to drill until it extends out of the workpiece 6 to be processed. In this way, the diameter of the drill bit that withdraws from the drilling first is small, and the correction effect of the latter drill bit on the drilling will be better. Even if the two drill bits are not strictly in a straight line, after the latter drill bit drills through, it can ensure that the drilled hole is basically a straight hole.

[0037] In a preferred embodiment, the drilling processing equipment also includes a third drill bit, which is located downstream of the drilling device 5. The downstream means that it is located at the position of the subsequent process. The third drill bit can perform secondary processing on the inner surface of the borehole. If the hole is not drilled through in the previous process, the third drill bit will further drill through the hole. Of course, the workpiece that has not been drilled through can also be screened out and put into waste by setting a detection device. In addition, even if the hole is drilled through in the previous process, due to the different sizes of the two drill bits and the alignment reasons, there may be burrs inside the hole. The third drill bit can drill through the hole again to remove the burrs on the inner surface of the hole and make the surface of the hole smooth.

[0038] The clamping device is used to fix the workpiece to be processed, and comprises: a clamping body 1, on which a clamping station 11 for placing the workpiece to be clamped is provided, and a sliding groove 12 is also provided on the clamping body 1, and the sliding groove 12 is connected to the clamping station 11. The sliding groove 12 can be a groove opened inside the clamping body 1, and of course the sliding groove 12 can also pass through the upper surface of the clamping body 1. A pusher 2, the pusher 2 can slide in the sliding groove 12, and the pusher 2 can be pulled by manual or other driving devices, such as a cylinder or a motor. A clamping member 3, the clamping member 3 is located at the connection between the sliding groove 12 and the clamping station 11, and when the pusher 2 slides, it will press against the clamping member 3 to move it toward the clamping station 11, so that the workpiece to be clamped is clamped between the clamping member 3 and the clamping station 11. The clamping member 3 can be freely located at the connection between the sliding groove 12 and the clamping station 11, and the shape of the connection corresponds to the shape of the clamping member 3, so that when the pushing member 2 pushes the clamping member 3, the clamping member 3 will move upward as a whole. Of course, the clamping member 3 can be fixed to the clamping body 1 at one end and free at the other end, and the pushing member 2 pushes the free end of the clamping member 3 to move and clamp the workpiece, so that the clamping member 3 is not easy to move and misplace.

[0039] In a preferred embodiment, the clamping member 3 is provided with a recessed section 33 and a protruding top contact section 34, and the pushing member 2 is provided with a recessed position 21 and a protruding top contact position 22. When clamping, the pushing member 2 is pulled so that the top contact section 34 slides out of the recessed position 21, and the top contact position 22 pushes against the top contact section 34 so that the clamping member 3 moves toward the clamping station 11. That is, when the workpiece is not clamped, the protruding top contact section 34 of the clamping member 3 is located in the recessed position 21 of the pushing member 2; when the workpiece is clamped, the pushing member 2 is pushed, the pushing member 2 slides, and the protruding top contact position 22 pushes against the top contact section 34, pushing the clamping member 3 toward the clamping station 11, thereby clamping the workpiece to be clamped in the clamping station 11. Furthermore, the upper edge of the top contact position 22 on the side close to the top contact section 34 is arranged in an arc shape, so that the resistance is small when pushing the pusher 2, and the top contact position 22 is easier to push the top contact section 34, reducing the thrust required to push the pusher 2. The other end of the clamping member 3 relative to the top contact section 34 is a clamping section 35, and the recessed section 33 is located between the clamping section 35 and the top contact section 34. When the workpiece to be clamped is not clamped, the top contact position 22 is located in the recessed section 33, and the clamping section 35 and the top contact section 34 are respectively located in the recessed positions 21 on both sides of the top contact position 22. The side line of the top contact position 22 on the other side away from the top contact section 34 is a straight line, so that when the clamping section 35 moves to this place, it has a certain limiting effect. That is, the position where the top contact position 22 contacts the locking section 35 is not an arc-shaped surface and has a large resistance, so that when the pusher 2 slides until the locking section 35 contacts the top contact position 22, the limiting effect can be achieved.

[0040] In a preferred embodiment, the clamping member 3 is an elastic member, that is, when the pusher 2 presses the clamping member 3, the clamping member 3 will generate elastic force. The clamping member 3 can be made of elastic material so that it has a certain elasticity, or the clamping member 3 has a certain elasticity due to its certain shape, such as a spring shape. Preferably, the clamping member 3 is similar to a hairpin, with one end being an integral arc-shaped arrangement and the other end being divided into an upper and lower part, so that the upper and lower parts have elasticity under the action of external force, and the top contact section 34 is located at this end of the upper and lower parts. The clamping member 3 is preferably made of metal material, and the upper and lower parts are parallel strips, similar to the two clamps of a hairpin. When clamping a workpiece, the pusher 2 touches the lower strip, and the upper strip presses the workpiece to be clamped. The two strips are deformed respectively under the action of pressure, which can ensure that they have good elastic force, not only ensuring that the clamping is more secure, but also when loosened, due to the existence of elastic force, the clamping member 3 will be easier to reset. The shape of the clamping station 11 corresponds to the shape of the workpiece to be clamped, and the shape of the clamping member 3 can also be set to correspond to the shape of the workpiece to be clamped. For example, the upper strip body can have a certain arc shape, so that it is convenient to clamp a workpiece with a certain arc surface.

[0041] In a preferred embodiment, the clamping member 3 includes a connecting end 31 and a free end 32, and the free end 32 can rotate around the connecting end 31 under the action of the pushing member 2. That is, the connecting end 31 of the clamping member 3 is relatively fixed to the clamping body 1, and the pushing member 2 contacts the top contact end section of the clamping member 3, and the top contact section 34 will rotate upward around the connecting section to clamp the workpiece. The fixed setting at one end makes it difficult for the clamping member 3 to slip out of the sliding groove 12, and it is also easy to install later. Furthermore, a pin hole 13 is provided on the clamping member 3, and a pin column 4 is fixed on the clamping body 1, and the clamping member 3 can rotate around the pin column 4. The pin 4 and the clamping body 1 can be integral or separate. When they are separate, a corresponding pin hole 13 is also provided on the clamping body 1. The clamping member 3 is placed at the corresponding position, the pin hole 13 of the clamping member 3 is connected with the pin hole 13 of the clamping body 1, and the pin 4 is inserted into the pin hole 13 to realize the connection between the clamping member 3 and the clamping body 1.

[0042] In a preferred embodiment, the clamping device includes at least two clamping stations 11 and at least two clamping members 3 corresponding thereto, so that at least two workpieces to be clamped can be clamped simultaneously by pulling the pusher 2. At this time, continuous recessed positions 21 and top contact positions 22 are provided on the pusher 2. Except for the two recessed positions 21 at the two ends, each recessed position 21 accommodates a clamping member 3 clamping segment 35 and a top contact segment 34 of an adjacent clamping member 3 in an unclamped state. In this way, by pulling the pusher 2, multiple workpieces can be clamped or released simultaneously.

[0043] The present invention also provides a drilling method, wherein the workpiece 6 to be processed is firmly clamped in a clamping device; two drill bits located on the same axis are used to drill holes in the workpiece 6 to be processed at the same time. The same axis mentioned here is not the same axis in a strict sense, but it is sufficient to be basically located on the same axis, and it can deviate slightly from the same axis. That is, the two drill bits will drill holes in the workpiece on a straight line to ensure that the drilled through holes are basically on a line. In current drilling processing, the through hole is basically drilled from one side, so the drilling time is long and the efficiency is low. In addition, the coolant is not easy to cool the drill bit, resulting in serious heating of the drill head and a short service life. In addition, drilling on one side is not easy to guide the debris due to the long drilling path, which not only leads to poor drilling effect, but also affects the life of the drill bit. The method drills holes from both sides at the same time, which greatly shortens the drilling time, has high efficiency, can prevent the drill bit from overheating, and is also easy to guide the debris. When drilling, the two drill bits can drill holes at the same time at the beginning. When drilling is close to being drilled through, the drill bit on one side withdraws first, and the drill bit on the other side continues to drill until it is drilled through and extends out of the workpiece. In this way, the rear drill bit will drill the hole drilled by the front drill bit again, making the inner surface of the hole smoother and taking out the debris inside the hole. In addition, even if the two drill bits are not strictly in a straight line, the rear drill bit will continue to drill forward after drilling through, which will correct the hole drilled by the front drill bit, and the hole drilled through the workpiece will basically be a straight hole.

[0044] Before drilling, the two drill bits lightly drill a certain position first, and then start drilling. That is, first drill a positioning hole, and then start drilling. This can ensure that the drilling is easy and the drill bit is not easy to slip and deviate.

[0045] The diameters of the two drill bits are one large and one small. The drill bit with the small diameter is withdrawn from the drilling first, and the drill bit with the large diameter continues to drill until the workpiece 6 to be processed is drilled through. The diameter of the first drill bit 51 is larger than the diameter of the second drill bit 52. When drilling, the two drill bits drill holes in opposite directions at the same time. Before drilling through, the second drill bit 52 is withdrawn from the drilling first, and the first drill bit 51 continues to drill until it extends out of the workpiece 6 to be processed. In this way, the diameter of the drill bit that withdraws from the drilling first is small, and the correction effect of the latter drill bit on the drilling will be better. Even if the two drill bits are not strictly in a straight line, after the latter drill bit drills through, it can ensure that the drilled hole is basically a straight hole.

[0046] In a preferred embodiment, it also includes a secondary processing procedure of drilling the hole with a drill bit, which is used to drill through the hole that was not drilled through in the previous process and further smooth the inner surface of the hole. After drilling, the workpiece 6 to be processed will be further transported to the through-hole detection process. If the hole is not drilled through in the previous process, the third drill bit will further drill through the hole. Of course, the workpiece that is not drilled through can also be screened out and put into waste by setting a detection device. In addition, even if the previous process is drilled through, due to the different sizes of the two drill bits and the centering reasons, there may be burrs inside the hole. The third drill bit can drill through the hole again to remove the burrs on the inner surface of the hole and make the hole surface smooth. The drill bit for further through-hole detection has the same diameter as the drill bit with a larger diameter when drilling, so that when drilling through the hole, the correction effect of the third drill bit on the inner surface of the hole is better.

[0047] The drilling processing equipment and method provided by the present invention can drill holes from both sides of the workpiece at the same time, which reduces the drilling time, has high work efficiency, reduces the heat generation of the drill bit, prolongs the service life of the drill bit, facilitates the extraction of drilling debris, and improves the drilling effect. On this basis, two drill bits are used, one large and one small. When drilling, the small drill bit is withdrawn first, and the large drill bit continues to drill until it penetrates the workpiece. The requirements for the centering of the two drill bits are not too high, and the large drill bit can further correct the inner surface of the drill hole to push out the debris. The third through-hole drill bit can drill through the hole that has not been drilled through, and can also further correct the drill hole to reduce burrs on the inner surface of the drill hole. The clamping device provided by the present invention can realize the firm clamping of multiple workpieces at the same time by providing a sliding groove and a pushing member. It is not only simple in structure, but also stable in operation and long in service life.

[0048] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drilling processing equipment, characterized in that: include: A clamping device, used for clamping and fixing a workpiece to be processed (6); A drilling device (5) comprising a first drill bit (51) and a second drill bit (52), wherein the first drill bit (51) and the second drill bit (52) are located on the same axis on both sides of a workpiece (6) to be processed, and drill holes in opposite directions on the workpiece to be processed simultaneously; Wherein, the clamping device comprises: A clamping body (1), wherein the clamping body (1) is provided with a clamping station (11) for placing a workpiece to be clamped, and the clamping body (1) is also provided with a sliding groove (12), wherein the sliding groove (12) is connected to the clamping station (11); a pushing member (2), the pushing member (2) being capable of sliding in the sliding groove (12), the pushing member (2) being provided with a recessed position (21) and a top contact position (22); A clamping member (3), the clamping member (3) is located at the connection between the sliding groove (12) and the clamping station (11), and when the pushing member (2) slides, it will press against the clamping member (3) to make it move toward the clamping station (11), so that the workpiece to be clamped is clamped between the clamping member (3) and the clamping station (11); the clamping member (3) is provided with a recessed section (33) and a top contact section (34) corresponding to the recessed position (21) and the top contact position (22) on the pushing member (2), and the clamping member (3) is relatively close to the top contact section (34). 4) is a locking section (35), the recessed section (33) is located between the locking section (35) and the top contact section (34), when the workpiece to be clamped is not clamped, the top contact position (22) is located in the recessed section (33), and the locking section (35) and the top contact section (34) are respectively located in the recessed positions (21) on both sides of the top contact position (22); the clamping member (3) comprises a connecting end (31) and a free end (32), and the free end (32) can rotate around the connecting end (31) under the action of the pushing member (2).

2. The drilling equipment according to claim 1, characterized in that: The diameter of the first drill bit (51) is greater than the diameter of the second drill bit (52), and the two drill bits drill holes in opposite directions simultaneously. Before drilling through, the second drill bit (52) first withdraws from the drilling, and the first drill bit (51) continues drilling until drilling through.

3. The drilling equipment according to claim 1, characterized in that: It also includes a third drill bit, which is located beside the first drill bit (51) and the second drill bit (52) and performs secondary processing on the inner surface of the drill hole.

4. The drilling equipment according to claim 1, characterized in that: The free end (32) is divided into two parts, an upper part and an lower part, so that the upper part and the lower part have elasticity under the action of external force, and the top contact section (34) is located at one end of the upper part and the lower part.

5. A drilling method, characterized in that: Drilling using the drilling processing equipment according to any one of claims 1 to 4 comprises the following steps: S1. Firmly clamp the workpiece (6) to be processed in a clamping device; S2, using two drill bits located on the same axis to drill holes in the workpiece (6) at the same time; S3. Before the two drill bits drill through, the drill bit on one side is withdrawn first, and the drill bit on the other side continues to drill until the workpiece is drilled through.

6. The drilling method according to claim 5, characterized in that: In step S2, the two drill bits lightly drill a certain position before drilling, and then start drilling.

7. The drilling method according to claim 5, characterized in that: The two drill bits have diameters of one large and one small. The drill bit with the small diameter is withdrawn from the drilling hole first, and the drill bit with the large diameter continues to drill until the workpiece to be processed is drilled through (6).

8. The drilling method according to claim 5, characterized in that: The method also includes step S4: using a drill to perform secondary processing on the hole, for drilling through the hole that was not drilled through in the previous process and further smoothing the inner surface of the hole. The diameter of the drill is consistent with the larger diameter drill used in the previous process.

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