CN111113555B - Clamping device for PCB numerical control drilling machine and workbench provided with clamping device - Google Patents
Clamping device for PCB numerical control drilling machine and workbench provided with clamping device Download PDFInfo
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- CN111113555B CN111113555B CN202010047665.3A CN202010047665A CN111113555B CN 111113555 B CN111113555 B CN 111113555B CN 202010047665 A CN202010047665 A CN 202010047665A CN 111113555 B CN111113555 B CN 111113555B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/20—Cutting beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
- B26F2210/08—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products of ceramic green sheets, printed circuit boards and the like
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Abstract
The invention relates to a clamping device for a PCB (printed circuit board) numerical control drilling machine and a workbench for installing the clamping device, and belongs to the technical field of PCB numerical control drilling machines. The driving mechanism is arranged in the base, so that the normal realization of the clamping function of the clamping device is ensured, the size of the clamping device is reduced, and the weight of the clamping device is reduced.
Description
Technical Field
The invention relates to the technical field of PCB numerical control drilling machines, in particular to a clamping device for a PCB numerical control drilling machine and a workbench for installing the clamping device.
Background
The PCB drilling is a very critical process in the whole production process of the printed circuit board, the drilling process occupies long production time, and the quality, the performance and the cost of the PCB are directly influenced by the level of the processing technology and the manufacturing equipment.
Before the drilling, the PCB circuit board needs accurate installation on the PCB numerical control drilling machine, the clamping device of current PCB numerical control drilling machine adopts a bit and an online locate mode usually, chinese utility model patent that patent publication number is CN207255754U proposes a clamping device for PCB drilling machine, it includes the workstation, be used for running through both ends around the circuit board, and stretch out preceding pin and the back pin of this circuit board lower extreme, still include first clamping mechanism, the second clamping mechanism, pull rod and actuating mechanism, first clamping mechanism sets firmly the position department that corresponds preceding pin and back pin on the workstation respectively with the second clamping mechanism, be used for pressing from both sides tight preceding pin and back pin respectively, the pull rod slides and sets up on the workstation, it is used for driving the tight back pin of second clamping mechanism and loosens the restriction to first clamping mechanism.
In the scheme, the first clamping mechanism, the second clamping mechanism and the driving mechanism are connected through the pull rod, the driving mechanism is driven by the air cylinder, and the front pin and the rear pin are clamped or loosened by controlling the extension and retraction of the piston rod of the air cylinder. However, in the above technical solution, the driving mechanism is disposed at one end of the base far away from the first clamping mechanism, so that the effective space of the clamping device for the machine tool workbench is too large.
Therefore, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a clamping device for a PCB numerical control drilling machine and a workbench for installing the clamping device.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a PCB numerical control clamping device for drilling machine, is including being used for running through both ends around the PCB board and stretching out preceding pin and the back pin of this PCB board lower extreme, still includes the base, sets up first clamping mechanism and second clamping mechanism on the base side by side, first clamping mechanism corresponds the setting with preceding pin, second clamping mechanism corresponds the setting with the back pin, the inside actuating mechanism that is equipped with of base, actuating mechanism is located between first clamping mechanism and the second clamping mechanism, it is equipped with the connecting rod of connecting first clamping mechanism and second clamping mechanism in the base slides, just actuating mechanism and connecting rod pole body are connected, and it is through the drive the connecting rod slides and drives second clamping mechanism and control first clamping mechanism.
By adopting the technical scheme, the first clamping mechanism and the second clamping mechanism are arranged on the base so as to clamp or loosen the front pin and the rear pin, so that the PCB keeps fixed when the front pin and the rear pin are clamped; the first clamping mechanism, the second clamping mechanism and the driving mechanism are connected through the connecting rod, so that the driving mechanism can perform linkage control on the first clamping mechanism and the second clamping mechanism through the connecting rod; through setting up actuating mechanism inside the base to reduce the space when current actuating mechanism installs at the base tip and occupy, and then effectively reduce clamping device and occupy the space of workstation, reduce the size of workstation, reduce workstation moving mass size.
The invention is further configured to: the base has seted up the mounting groove along its length direction, first clamping mechanism, actuating mechanism and second clamping mechanism install in the mounting groove in proper order, the length direction of connecting rod is parallel with the length direction of mounting groove, just the connecting rod slides along the length direction of mounting groove, first clamping mechanism with second clamping mechanism's up end flushes with the base up end.
Through adopting above-mentioned technical scheme, through setting up the mounting groove on the base, all install first clamping mechanism, second clamping mechanism and actuating mechanism in the mounting groove to make the roughness of clamping device up end, in order to satisfy the required roughness requirement of PCB board drilling.
The invention is further configured to: the first clamping mechanism comprises an installation block detachably arranged in the installation groove and a pressing block rotatably arranged in the installation block, the front pin extends into the installation block, and the side wall of one side of the pressing block is abutted against the front pin; a front rotating shaft penetrates through one end of the pressing block, the front rotating shaft is fixedly connected with the base, one end of the pressing block, far away from the front rotating shaft, is fixedly connected with a plurality of pressure springs, the plurality of pressure springs are arranged on one side, far away from a front pin, of the pressing block, and the front pin is located between the front rotating shaft and the pressure springs; and one end of the pressure spring, which is deviated from the pressing block, is fixedly connected with the mounting block.
Through adopting above-mentioned technical scheme, set up the compact heap in the installation piece to realize the rotation of compact heap through setting firmly the preceding pivot in the base groove and connect, through set up the pressure spring at the installation piece other end, utilize the compression energy that the pressure spring produced when contracting, thereby make the compact heap can compress tightly the preceding pin in the installation piece, set up the position of preceding pivot and pressure spring simultaneously, according to lever principle, improve the effect that compresses tightly of compact heap to the preceding pin.
The invention is further configured to: the compression springs are arranged in parallel along the height direction of the mounting block, and the distance from the joint of the compression block and the compression springs to the position where the compression block is abutted against the front pin is larger than the distance from the joint of the compression block and the front rotary shaft to the position where the compression block is abutted against the front pin.
Through adopting above-mentioned technical scheme, set up along installation piece direction of height through setting up the pressure spring to make the distance of a plurality of pressure springs to preceding pivot equal, be less than its distance to pressure spring action point through setting up the distance that compact heap and preceding pin conflict position reached the preceding pivot, according to lever principle, the pressure spring can be pressed preceding pin tighter under the same compression energy.
The invention is further configured to: one end of the connecting rod is abutted against the side wall of the pressing block, which is far away from one end of the front rotating shaft, the connecting rod and the pressure spring are symmetrically arranged about the pressing block, when the connecting rod moves towards one end of the pressure spring, the pressure spring contracts, the pressing block rotates towards one side, which is far away from the front pin, and the front pin is loosened.
Through adopting above-mentioned technical scheme, contradict with the compact heap through setting up the connecting rod to when making the connecting rod move towards pressure spring one end, the pressure spring atress shrink, thereby make the compact heap rotate towards pressure spring one side, realize loosening of preceding pin, and do not receive connecting rod thrust at the compact heap, the compact heap can contradict preceding pin and press from both sides tightly in first clamping mechanism under the effect of pressure spring.
The invention is further configured to: a front bottom plate is detachably mounted in the mounting groove, and the upper end surface of the front bottom plate is flush with the upper end surface of the base; the driving mechanism is located the front bottom plate below, driving mechanism includes driving source and drive pendulum board, the both ends of drive pendulum board are connected with driving source and connecting rod respectively, the drive pendulum board is articulated with the base.
By adopting the technical scheme, the front bottom plate is arranged above the driving mechanism so as to shield the mounting groove, so that the flatness of the clamping device is ensured; through setting up driving source and drive pendulum board, connect driving source and connecting rod through the drive pendulum board to realize the removal of actuating mechanism drive control connecting rod.
The invention is further configured to: the driving source adopts telescopic drive equipment, the driving source sets up with preceding pivot homonymy, the drive pendulum board runs through and is equipped with the drive pivot, drive pivot and base fixed connection, the both ends of drive pendulum board are articulated with driving source and connecting rod respectively, interval between drive pivot and the driving source is greater than interval between drive pivot and the connecting rod.
By adopting the technical scheme, the telescopic driving device is selected as the driving source, the telescopic direction of the piston rod of the driving source is opposite to the moving direction of the connecting rod under the connection of the driving swing plate, and the force applied to the driving swing plate by the driving source is amplified when being transmitted to the connecting rod through the driving swing plate by setting the connecting position of the driving rotating shaft on the driving swing plate, so that the driving force required by the driving source is effectively reduced.
The invention also aims to provide a workbench for installing the clamping device, which comprises the clamping device, a bedplate, a plurality of connecting seats fixedly laid on the bedplate, and a plurality of upper cover plates with the connecting seats arranged at intervals and deviating from one side of the bedplate, wherein the clamping device is detachably arranged between two adjacent upper cover plates, and two sides of the clamping device are abutted and attached to the side walls of the upper cover plates.
Through adopting above-mentioned technical scheme, through setting up platen and upper cover plate, set up the connecting seat between upper cover plate and platen and connect, when making upper cover plate thickness reduce through the connecting seat for interval between upper cover plate up end and the platen satisfies clamping device's installation demand, and clamping device's the installation degree of depth on the workstation can suitably be adjusted according to the height of connecting seat, thereby satisfies the installation of actuating mechanism in the base.
The invention is further configured to: the bedplate is made of a honeycomb aluminum plate, and the connecting seat and the upper cover plate are made of aluminum materials.
Through adopting above-mentioned technical scheme, replace current granite platen through the platen that adopts aluminum honeycomb panel to make, under the prerequisite of guaranteeing required roughness of platen and intensity, reduce the weight of platen to reduce inertia and to the influence of workstation in drilling process, the workstation of being convenient for opens and stops, through the material of selecting connecting seat and upper cover plate, utilizes the good plasticity of aluminum product, guarantees that the holistic roughness of workstation is good.
The invention is further configured to: a plurality of heat dissipation grooves are formed in one side, facing the upper cover plate, of the connecting seat.
Through adopting above-mentioned technical scheme, through setting up the radiating groove, reduce the area of contact between connecting seat and the upper cover plate to the heat radiating area of increase upper cover plate, the workstation of being convenient for dispels the heat, alleviates the quality of workstation simultaneously.
In conclusion, the beneficial technical effects of the invention are as follows: the driving mechanism is arranged in the base, so that the area of the worktable occupied by the clamping device is reduced, and the volume of the PCB numerical control drilling machine is reduced; by arranging the workbench, the bedplate is made of the honeycomb aluminum plate, and the connecting seat and the upper cover plate are made of aluminum materials, so that the strength and the flatness required by the work of the workbench are ensured, meanwhile, the weight of the workbench is reduced, the start and stop of the workbench in the use process are facilitated, the production efficiency is improved, the connecting seat made of the aluminum materials has strong plasticity, the slotting problem of the existing granite can be effectively avoided, and the space formed between the upper cover plate and the bedplate can meet the height of the base when the driving mechanism is arranged in the base; meanwhile, the height of the base is increased, so that the inserting depth of the front pin and the rear pin and the clamping device is larger, and the stability of the front pin and the rear pin after inserting is improved; because the increase of base height for the highly effective increase of preceding fixed plate, thereby make the direction of height setting that a plurality of pressure springs can follow the preceding fixed plate, replace original horizontal setting, thereby first clamping mechanism is to the effect that compresses tightly of preceding pin.
Drawings
FIG. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a partial exploded view of the first embodiment of the present invention, mainly illustrating the first clamping mechanism, the second clamping mechanism, the driving mechanism and the connection relationship between the connecting rod and the base;
FIG. 3 is a partial exploded view of a first embodiment of the present invention, showing primarily the components of the first clamping mechanism and the second clamping mechanism;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a partial schematic structural diagram of the first embodiment of the present invention, which mainly shows the connection relationship among the first clamping mechanism, the second clamping mechanism, the driving mechanism and the connecting rod;
FIG. 6 is an enlarged view of portion B of FIG. 3;
FIG. 7 is an enlarged view of portion C of FIG. 5;
FIG. 8 is an enlarged view of portion D of FIG. 5;
FIG. 9 is a schematic view of the overall structure of a second embodiment of the present invention;
fig. 10 is a schematic partial structural diagram of the second embodiment of the present invention, mainly showing the composition relationship of the workbench.
In the figure: 1. a base; 11. mounting grooves; 12. a front chassis; 121. a second step; 13. a placement groove; 14. inserting a rod; 2. a first clamping mechanism; 21. mounting blocks; 211. a front fixing plate; 2111. a square groove; 2112. a first accommodating groove; 2113. a pressure spring mounting hole; 212. a front positioning plate; 2121. a V-shaped positioning groove; 22. a compression block; 221. a contact block; 23. a front rotating shaft; 24. a pressure spring; 3. a second clamping mechanism; 31. a rear fixing plate; 311. a through groove; 312. a chute; 313. a fourth step; 32. a clamping plate; 321. a second accommodating groove; 322. a waist-shaped groove; 323. a guide groove; 324. a first step; 325. a third step; 33. a gusset; 34. a rear rotating shaft; 35. a first pin shaft; 36. a second pin shaft; 37. a rear guide plate; 38. a middle guide plate; 4. a drive mechanism; 41. a drive source; 42. driving the swing plate; 43. driving the rotating shaft; 5. a connecting rod; 51. a third accommodating groove; 52. a fourth accommodating groove; 6. a front pin; 7. a rear pin; 8. a platen; 9. a connecting seat; 91. a groove; 92. a heat sink; 10. an upper cover plate; 100. and (7) a PCB board.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the clamping device for the PCB numerical control drilling machine disclosed by the invention comprises a long strip-shaped base 1, a first clamping mechanism 2 and a second clamping mechanism 3 which are arranged on the base 1 in parallel, and further comprises a front pin 6 arranged corresponding to the first clamping mechanism 2 and a rear pin 7 arranged corresponding to the second clamping mechanism 3, wherein the front pin 6 and the rear pin 7 are used for penetrating through the front end and the rear end of a PCB 100 and extending out of the lower end of the PCB 100 to be respectively spliced with the first clamping mechanism 2 and the second clamping mechanism 3.
Referring to fig. 1 and 2, a driving mechanism 4 is arranged inside the base 1, the driving mechanism 4 is located between the first clamping mechanism 2 and the second clamping mechanism 3, the base 1 is provided with a mounting groove 11 along the length direction thereof, and the first clamping mechanism 2, the driving mechanism 4 and the second clamping mechanism 3 are sequentially mounted in the mounting groove 11. The base 1 is positioned in the mounting groove 11 and is provided with a connecting rod 5 in a sliding manner, the connecting rod 5 is used for connecting the first clamping mechanism 2 and the second clamping mechanism 3, and the length direction of the connecting rod 5 is parallel to the length direction of the mounting groove 11. The driving mechanism 4 is shaft-connected to the connecting rod 5 so that the driving mechanism 4 can drive the second clamping mechanism 3 and control the first clamping mechanism 2 by driving the connecting rod 5 to slide in the mounting groove 11.
Referring to fig. 1 and 2, the first clamping mechanism 2 includes an installation block 21 detachably disposed in the installation groove 11 through a countersunk bolt and a pressing block 22 rotatably disposed in the installation block 21, and an upper end surface of the installation block 21 is flush with an upper end surface of the base 1, and a side wall of the installation block 21 is abutted against an inner wall of the installation groove 11, so that it is ensured that after the first clamping mechanism 2 is installed in the installation groove 11, a drilled hole of the PCB 100 is not affected. The mounting block 21 includes a front fixing plate 211 and a front positioning plate 212 juxtaposed in a longitudinal direction of the mounting groove 11, side walls of the front fixing plate 211 and the front positioning plate 212 abut against each other, and the front fixing plate 211 is disposed at one end portion of the mounting groove 11.
Referring to fig. 3 and 4, the front pin 6 extends between the front fixing plate 211 and the front positioning plate 212, a V-shaped positioning slot 2121 is concavely formed in the middle of one end of the front positioning plate 212 abutting against the front fixing plate 211, and the V-shaped positioning slot 2121 vertically penetrates through the front positioning plate 212; the front fixing plate 211 is provided with a square groove 2111 corresponding to the V-shaped positioning groove 2121, and the square groove 2111 is communicated with the V-shaped positioning groove 2121, so that the front pin 6 can slide in the square groove 2111. The front fixing plate 211 is provided with a first receiving groove 2112 recessed upward from the lower end of the front positioning plate 212 abutting against the front fixing plate, the first receiving groove 2112 is communicated with the square groove 2111 and the V-shaped positioning groove 2121, the pressing block 22 is rotatably disposed in the first receiving groove 2112, and when the pressing block 22 moves toward the V-shaped positioning groove 2121, the pressing block 22 presses the front pin 6 into the V-shaped positioning groove 2121.
Referring to fig. 2 and 4, a front rotating shaft 23 penetrates through one end of the pressing block 22, the front rotating shaft 23 is fixedly connected with the base 1, and an upper end surface of the front rotating shaft 23 abuts against an upper end wall of the first accommodating groove 2112. A plurality of pressure springs 24 of one end fixedly connected with of preceding pivot 23 are kept away from to compact heap 22, and the number of pressure springs 24 is two in this embodiment, and pressure spring 24 is located compact heap 22 and deviates from preceding pin 6 one side, and compact heap 22 deviates from the vertical contact block 221 that is equipped with of one side lateral wall of pressure spring 24, and the lateral wall of contact block 221 is contradicted with preceding pin 6, and the upper end of contact block 221 is arranged in square groove 2111 and with square groove 2111 sliding connection. When the pressure spring 24 is in a partially compressed state, the pressure spring 24 makes the pressing block 22 have a tendency to rotate toward the front pin 6 with a certain compression energy, so that when the pressure spring 24 is not pressed by an external force, the contact block 221 presses the front pin 6 in the V-shaped positioning groove 2121.
Referring to fig. 2 and 4, according to the lever principle, in order to ensure that the compression springs 24 can compress the front pin 6 more tightly under the same compression energy, the two compression springs 24 are arranged side by side along the height direction of the mounting block 21, and in order to ensure that the compression energy of the two compression springs 24 can be better utilized, the front fixing plate 211 is provided with compression spring mounting holes 2113 for mounting the compression springs 24 corresponding to the compression springs 24, and one ends of the two compression springs 24 departing from the compression block 22 are respectively fixedly connected with the bottom walls of the corresponding compression spring mounting holes 2113, and the compression springs 24 partially extend out of the compression spring mounting holes 2113, so that the compression springs 24 still have a deformation scope. The distance from the action point of the pressing block 22 and the pressure spring 24 to the position where the action point of the pressing block and the pressure spring 24 are abutted against the front pin 6 is larger than the distance from the joint of the pressing block 22 and the front rotating shaft 23 to the position where the action point of the pressing block and the front rotating shaft 6 are abutted against the front pin 6, namely, the distance from the abutting block 221 to the joint of the pressing block 22 and the pressure spring 24 is larger than the distance from the abutting block to the front rotating shaft 23, according to the lever principle, the pressure of the pressure spring 24 corresponding to the pressing block 22 is larger than the pressure applied to the front pin 6 by the pressing block 22, so that the front pin 6 is ensured to be abutted against and pressed in the V-shaped positioning groove 2121 by the pressing block 22, and the stability of the connection of the front pin 6 and the first clamping mechanism 2 when the PCB 100 is fixed is ensured.
Referring to fig. 4 and 5, one end of the connecting rod 5 penetrates through the front positioning plate 212, and the end part of the connecting rod is abutted against the side wall of the pressing block 22 far away from one end of the front rotating shaft 23, and the connecting rod 5 and the pressure spring 24 are symmetrically arranged about the pressing block 22, when the connecting rod 5 moves towards one end of the pressure spring 24, the pressure spring 24 is compressed by the connecting rod 5, and the pressing block 22 rotates towards one side far away from the front pin 6, so that the front pin 6 is loosened.
Referring to fig. 5, in order to conveniently release the front pin 6 when the positioning of the PCB 100 is required to be released, the connecting rod 5 is driven by the driving mechanism 4, the driving mechanism 4 includes a driving source 41 and a driving swing plate 42, in order to make the arrangement of the driving mechanism 4 on the base 1 more compact, the driving source 41 is arranged at the same side of the front rotating shaft 23, the base 1 is located at one side of the front rotating shaft 23 and is provided with a placing groove 13 for installing the driving mechanism 4, the placing groove 13 is communicated with the installing groove 11, so that the occupied area of the base 1 is reduced. The two ends of the driving swing plate 42 are respectively hinged to the driving source 41 and the connecting rod 5, the driving swing plate 42 penetrates through the driving rotating shaft 43, and the driving rotating shaft 43 is fixedly connected with the base 1, so that the driving swing plate 42 is hinged to the base 1.
Referring to fig. 2 and 5, the driving source 41 is a telescopic driving device, such as an air cylinder, an oil cylinder, an electric push rod, etc., and the driving source 41 is an air cylinder in this embodiment; an insert rod 14 penetrates through the end part of the cylinder body of the driving source 41, and the insert rod 14 is fixedly connected with the base 1, so that the driving source 41 is hinged with the base 1; the two ends of the driving swing plate 42 are respectively hinged to the driving source 41 and the connecting rod 5, and the connecting rod 5 is provided with a fourth accommodating groove 52 (see fig. 3) corresponding to the driving swing plate 42 in a recessed manner. The extension direction of the piston rod of the driving source 41 deviates from one side of the first clamping mechanism 2, when the piston rod of the driving source 41 extends, one end, connected with the driving source 41, of the driving swing plate 42 rotates towards one side, which deviates from the pressing block 22, one end, connected with the connecting rod 5, of the driving swing plate 42 rotates towards one side of the pressing block 22, so that the connecting rod 5 rotates the pressing block 22 towards the direction of the square groove 2111 of the front fixing plate 211, the pressing block 22 rotates towards one end, which deviates from the front pin 6, and the front pin 6 is loosened. In order to effectively reduce the driving force required by the driving source 41, the distance between the driving rotating shaft 43 and the driving source 41 is double the distance between the driving rotating shaft 43 and the connecting rod 5, and according to the lever principle, the pushing force of the driving swing plate 42 applied to the connecting rod 5 is double the driving force applied by the driving source 41.
Referring to fig. 2, for the convenience install and overhaul actuating mechanism 4, demountable installation has preceding bottom plate 12 in mounting groove 11, in this embodiment, preceding bottom plate 12 is installed in mounting groove 11 through the countersunk head bolt cooperation, preceding bottom plate 12 is located actuating mechanism 4 top and shelters from actuating mechanism 4, simultaneously the up end of preceding bottom plate 12 flushes with base 1's up end, preceding bottom plate 12 is located its length direction's lateral wall and the laminating of contradicting of mounting groove 11 lateral wall, and preceding bottom plate 12 contradicts the laminating towards the one end tip of first clamping mechanism 2 and the lateral wall of preceding locating plate 212, thereby avoid seting up of mounting groove 11 to cause the influence to the drilling operation of PCB board 100.
Referring to fig. 2 and 5, the second clamping mechanism 3 includes a rear fixing plate 31 and a clamping plate 32 juxtaposed in the width direction of the mounting groove 11, and the upper end surfaces of the rear fixing plate 31 and the clamping plate 32 are flush with the upper end surface of the base 1. The rear fixing plate 31 and the base 1 are detachably arranged through a countersunk bolt, and the side wall of one side of the rear fixing plate 31, which is far away from the clamping plate 32, is abutted and attached to the side wall of the mounting groove 11; the rear fixing plate 31 is arranged on the same side as the connecting rod 5, the connecting rod 5 is embedded in one side, away from the clamping plate 32, of the rear fixing plate 31, and the connecting rod 5 is embedded between the rear fixing plate 31 and the base 1 in a sliding mode, so that the position of the connecting rod in the width direction of the mounting groove 11 is unchanged. The clamping plate 32 is connected in the mounting groove 11 in a sliding mode, the width of the clamping plate 32 and the width of the rear fixing plate 31 are smaller than the groove width of the mounting groove 11, the rear pin 7 is placed between the gap between the clamping plate 32 and the rear fixing plate 31, and the clamping plate 32 moves along the width direction of the mounting groove 11, so that the rear pin 7 is clamped and loosened.
Referring to fig. 5 and 6, corner plates 33 are provided between both ends of the clamp plate 32 and the connecting rod 5, and the corner plates 33 are provided on the lower end surfaces of the clamp plate 32 and the connecting rod 5. The angle plate 33 is L-shaped, a first pin shaft 35 is fixedly arranged at the end part of the short side of the angle plate, and the first pin shaft 35 is movably connected with the clamping plate 32; a rear rotating shaft 34 is rotatably arranged at the turning part of the angle plate 33, and the rear rotating shaft 34 is fixedly connected with the base 1; the end of the long side of the angle plate 33 is fixedly connected with a second pin shaft 36, and the second pin shaft 36 is rotatably connected with the connecting rod 5, so that the angle plate 33 is movably connected with the connecting rod 5, and the clamping plate 32, the connecting rod 5 and the two angle plates 33 form a parallelogram structure. When the connecting rod 5 slides along the length direction of the mounting groove 11 under the driving of the driving mechanism 4, the two angle plates 33 rotate relative to the respective rear rotating shafts 34 at the same time, and the clamping plate 32 moves correspondingly along the direction generated by the driving of the angle plates 33, and the clamping plate 32 moves along the width direction of the mounting groove 11 at the same time, so that the rear pin 7 is clamped or loosened. Because the length from the connecting part of the connecting rod 5 and the angle plate 33 to the intersection of the two arms of the angle plate 33 is greater than the length from the connecting part of the angle plate 33 and the clamping plate 32 to the intersection of the two arms of the angle plate 33, the driving force required when the rear pin 7 is clamped can be effectively reduced or the clamping effect of the rear pin 7 can be enhanced according to the lever boosting effect.
Referring to fig. 2 and 5, when the second clamping mechanism 3 releases the rear pin 7, the long side of the angle plate 33 is parallel to the width direction of the mounting groove 11, and the distance between the clamping plate 32 and the rear fixing plate 31 is the largest; meanwhile, the connecting rod 5 drives the second clamping mechanism 3 to control the tightness of the rear pin 7, in order to achieve the required functions, the front pin 6 and the rear pin 7 are simultaneously loosened, when the long edge of the angle plate 33 is parallel to the width direction of the mounting groove 11, the piston rod of the driving source 41 is in an extension state, the connecting rod 5 moves towards one end of the compression plate at the moment, and the end part of the connecting rod 5 is abutted against the compression plate and extrudes the compression spring 24 to shrink.
Referring to fig. 5 and 6, in order to ensure the flatness of the second clamping mechanism 3 installed in the installation groove 11, the corner plate 33 of the clamping plate 32 is provided with a second receiving groove 321 in an upward concave manner, the corner plate 33 of the connecting rod 5 is also provided with a third receiving groove 51 in an upward concave manner, the corner plate 33 penetrates through the rear fixing plate 31, the rear fixing plate 31 is provided with a through groove 311 in a corresponding manner to the corner plate 33, and the lower end surfaces of the clamping plate 32 and the rear fixing plate 31 are abutted against the bottom wall of the installation groove 11, so as to ensure the flatness of the second clamping mechanism 3. In order to avoid the difficulty in assembling the corner plate 33 caused by the machining error of the corner plate 33, the end of the second receiving groove 321 corresponding to the corner plate 33 is further provided with a waist-shaped groove 322, and the first pin 35 is disposed in the waist-shaped groove 322.
Referring to fig. 5 to 7, in order to avoid that, in the process of driving the clamping plate 32 to move by the driving mechanism 4, two ends of the clamping plate 32 incline or tilt upwards, a first step 324 is recessed downwards towards the upper end surface of one end of the front bottom plate 12 of the clamping plate 32, a second step 121 in sliding fit with the first step 324 is arranged on the front bottom plate 12 corresponding to the first step 324, the step surface of the first step 324 is located below the step surface of the second step 121 and is abutted against the step surface of the second step 121, and a gap is left between the end of the clamping plate 32 and the front bottom plate 12, so that the second step 121 plays a guiding role for the clamping plate 32, and the clamping plate 32 can slide along the length direction of the mounting groove 11 when driven by the driving mechanism 4. The lower extreme that pinch-off plate 32 deviates from preceding bottom plate 12 one end upwards the sunken third step 325 that is equipped with, the fixed back deflector 37 that is equipped with of third step 325, the back fixed plate 31 corresponds back deflector 37 and upwards caves in equally and is provided with fourth step 313, and back deflector 37 is contradicted with the step face of fourth step 313 to avoid pinch-off plate 32 rear end perk.
Referring to fig. 5 and 8, the middle portion of the clamping plate 32 is further provided with an intermediate guide plate 38, the lower end surface of the clamping plate 32 is recessed upward corresponding to the intermediate guide plate 38 and provided with a guide groove 323, and the intermediate guide plate 38 is fixedly disposed in the guide groove 323. The middle guide plate 38 protrudes toward one side of the rear fixing plate 31, the rear fixing plate 31 is provided with a slide groove 312 corresponding to the middle guide plate 38 in an upward concave manner, and the upper end surface of the middle guide plate 38 is abutted against the guide groove 323 and the bottom wall of the slide groove 312 respectively; the middle part of the clamping plate 32 is restrained by the middle guide plate 38, so that the middle part is prevented from upwarping, and the flatness of the upper end surface of the clamping device is improved.
Example two:
referring to fig. 9, a workbench for installing a clamping device includes the clamping device described in the first embodiment, and further includes a bedplate 8, a plurality of connecting seats 9 fixedly laid on the bedplate 8, and a plurality of upper cover plates 10 arranged at intervals on one side of the connecting seats 9 departing from the bedplate 8, wherein the clamping device is detachably arranged between two adjacent upper cover plates 10, and two sides of the clamping device are abutted and attached to side walls of the upper cover plates 10. The clamping means are flush with the upper end surface of the upper cover plate 10, thereby ensuring flatness of the table. Meanwhile, the bedplate 8 is made of a honeycomb aluminum plate, and the bedplate 8 made of the honeycomb aluminum plate replaces the existing granite worktable, so that the weight of the worktable is greatly reduced, the inertia problem caused by the weight of the worktable is reduced, the worktable is convenient to start and stop when moving in the drilling process, the load of a motor is reduced, the movement speed is increased, and the working efficiency is improved; meanwhile, the honeycomb aluminum plate has high strength and high flatness, so that the machining precision is ensured. Similarly, the connecting seat 9 and the upper cover plate 10 are both made of aluminum materials due to high plasticity and good heat dissipation performance of the aluminum materials; wherein the length direction of connecting seat 9 is parallel with the length direction of platen 8, and connecting seat 9 divides two for eight in this embodiment, and every row four are along 8 width direction interval parallel arrangements of platen, and the length of connecting seat 9 is about half of platen 8 length.
Referring to fig. 1 and 10, because the granite has good heat conductivity and roughness, current workstation adopts the granite to make usually, but because the degree of difficulty of seting up recess 91 on the granite is big, simultaneously because the weight of granite is big, for guaranteeing granite intensity and reduce the weight of granite as far as, consequently set up the general shallow of notched degree of depth on the current granite, the height that makes clamping device can set up is little, cause the pressure spring 24 to be not convenient for along the direction of height installation of base 1, preceding pin 6 and back pin 7 are shallow scheduling problem in the grafting degree of depth on first clamping mechanism 2 and second clamping mechanism 3. In this embodiment, the platen 8, the connecting seat 9 and the upper cover plate 10 are combined with each other to form the workbench, the connecting seat 9 with a higher height can be selected, and the upper end surface of the connecting seat is provided with the groove 91 with a deeper depth, the depth of the groove 91 can meet the height of the clamping device arranged in the base 1 by the driving mechanism 4, and the clamping device is fixedly arranged in the groove 91 by using a countersunk head bolt. Through the height that sets up suitable connecting seat 9 for clamping device's height can effectively increase, makes base 1 highly can satisfy actuating mechanism 4 and sets up required height, and solves other problems that current granite platform brought.
Referring to fig. 10, in order to improve the heat dissipation performance of the workbench, the thickness of the upper cover plate 10 is smaller than the height of the base 1, so that the distance between the bedplate 8 and the upper cover plate 10 is larger, and the heat dissipation of the upper cover plate 10 is facilitated; meanwhile, a plurality of heat dissipation grooves 92 are formed in one side of the connecting seat 9, which faces the upper cover plate 10, so that the contact area between the upper cover plate 10 and the connecting seat 9 is reduced, and the heat dissipation area of the upper cover plate 10 is increased.
The specific implementation process of the embodiment: before the operation of the PCB numerical control drilling machine, firstly, the extension of the piston rod of the driving source 41 is controlled, so that the pressing block 22 rotates towards one side far away from the V-shaped positioning groove 2121 under the interference of the connecting rod 5, the gap at the V-shaped positioning groove 2121 of the first clamping mechanism 2 is enlarged, the clamping plate 32 moves towards one side far away from the rear fixing plate 31 under the driving of the connecting rod 5, the gap at the second clamping mechanism 3 is enlarged, then the PCB 100 with the pressed positioning pins is placed on the workbench, the front pin 6 is inserted into the square groove 2111 and the V-shaped positioning groove 2121, the rear pin 7 is inserted into the gap between the rear fixing plate 31 and the clamping plate 32, finally, the piston rod of the driving source 41 is controlled to contract, the elastic action of the pressing spring 24 of the pressing block 22 rotates towards one side of the front pin 6, the pressing front pin 6 is enabled to realize positioning and clamping at the V-shaped positioning groove 2121, and the clamping plate 32 moves towards one side of the rear fixing plate 31 under the action of the connecting rod 5, the gap between the rear fixing plate 31 and the clamping plate 32 becomes small, so that the rear pin 7 is clamped between the rear fixing plate 31 and the clamping plate 32. After the drilling operation of the PCB numerical control drilling machine is completed or when the PCB 100 needs to be dismounted, the extension of the piston rod of the driving source 41 is controlled, so that the front pin 6 and the rear pin 7 are loosened, and then the PCB 100, together with the front pin 6 and the rear pin 7, is taken out to realize blanking.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a PCB numerical control is clamping device for drilling machine, is including being used for running through both ends around PCB board (100) and stretching out preceding pin (6) and back pin (7) of this PCB board (100) lower extreme, its characterized in that: the clamping device further comprises a base (1), a first clamping mechanism (2) and a second clamping mechanism (3) which are arranged on the base (1) in parallel, wherein the first clamping mechanism (2) is arranged corresponding to the front pin (6), the second clamping mechanism (3) is arranged corresponding to the rear pin (7), the lower end of the front pin (6) and the lower end of the rear pin (7) extending out of the PCB (100) are respectively spliced with the first clamping mechanism (2) and the second clamping mechanism (3), a driving mechanism (4) is arranged in the base (1), the driving mechanism (4) is positioned between the first clamping mechanism (2) and the second clamping mechanism (3), a connecting rod (5) for connecting the first clamping mechanism (2) and the second clamping mechanism (3) is arranged in the base (1) in a sliding manner, and the driving mechanism (4) is connected with the rod body of the connecting rod (5), driving the second clamping mechanism (3) and controlling the first clamping mechanism (2) by driving the connecting rod (5) to slide;
the base (1) is provided with a mounting groove (11) along the length direction, the first clamping mechanism (2), the driving mechanism (4) and the second clamping mechanism (3) are sequentially mounted in the mounting groove (11), the length direction of the connecting rod (5) is parallel to the length direction of the mounting groove (11), and the connecting rod (5) slides along the length direction of the mounting groove (11);
a front bottom plate (12) is detachably mounted in the mounting groove (11), and the front bottom plate (12) is positioned above the driving mechanism (4) and shields the driving mechanism (4);
the second clamping mechanism (3) comprises a rear fixing plate (31) and a clamping plate (32) which are arranged in parallel along the width direction of the mounting groove (11), the rear fixing plate (31) and the connecting rod (5) are arranged on the same side, the connecting rod (5) is embedded on one side, away from the clamping plate (32), of the rear fixing plate (31), and the connecting rod (5) is embedded between the rear fixing plate (31) and the base (1) in a sliding manner;
the first clamping mechanism (2) comprises an installation block (21) detachably arranged in the installation groove (11) and a pressing block (22) rotatably arranged in the installation block (21), the front pin (6) extends into the installation block (21), and the side wall of one side of the pressing block (22) is abutted against the front pin (6); a front rotating shaft (23) penetrates through one end of the pressing block (22), the front rotating shaft (23) is fixedly connected with the base (1), a plurality of compression springs (24) are fixedly arranged on one side, away from the front rotating shaft (23), of the pressing block (22), the plurality of compression springs (24) are arranged on one side, away from the front pin (6), of the pressing block (22), and the front pin (6) is located between the front rotating shaft (23) and the compression springs (24); one ends of the pressure springs (24) departing from the pressing blocks (22) are fixedly connected with the mounting blocks (21);
the driving mechanism (4) is positioned below the front bottom plate (12), the driving mechanism (4) comprises a driving source (41) and a driving swing plate (42), two ends of the driving swing plate (42) are respectively connected with the driving source (41) and the connecting rod (5), and the driving swing plate (42) is hinged with the base (1); the upper end surface of the front bottom plate (12), the upper end surfaces of the first clamping mechanism (2) and the second clamping mechanism (3) are flush with the upper end surface of the base (1);
the mounting block (21) comprises a front fixing plate (211) and a front positioning plate (212) which are arranged in parallel along the length direction of the mounting groove (11), the side walls of the front fixing plate (211) and the front positioning plate (212) are mutually abutted, and the front fixing plate (211) is arranged at one end part of the mounting groove (11);
the front pin (6) extends into a position between the front fixing plate (211) and the front positioning plate (212), a V-shaped positioning groove (2121) is formed in the middle of one end, abutted against the front fixing plate (211), of the front positioning plate (212) in an inwards recessed mode, and the V-shaped positioning groove (2121) vertically penetrates through the front positioning plate (212); the front fixing plate (211) is provided with a square groove (2111) which is inwards recessed corresponding to the V-shaped positioning groove (2121); the square groove (2111) is communicated with the V-shaped positioning groove (2121), so that the front pin (6) can slide in the square groove (2111); the lower end face of one end, abutted against the front positioning plate (212), of the front fixing plate (211) is provided with a first accommodating groove (2112) in an upward concave mode, the first accommodating groove (2112) is communicated with the square groove (2111) and the V-shaped positioning groove (2121), the pressing block (22) is rotatably arranged in the first accommodating groove (2112), and when the pressing block (22) moves towards the V-shaped positioning groove (2121), the pressing block (22) presses the front pin (6) in the V-shaped positioning groove (2121);
a placing groove (13) for installing the driving mechanism (4) is formed in one side of the base (1), and the placing groove (13) is communicated with the installing groove (11); an insert rod (14) penetrates through the end part of the cylinder body of the driving source (41) in the placing groove (13), and the insert rod (14) is fixedly connected with the base (1);
before the PCB numerical control drilling machine works, firstly, the extension of a piston rod of a driving source (41) is controlled, so that a pressing block (22) rotates towards one side far away from a V-shaped positioning groove (2121) under the interference of a connecting rod (5), a gap at the V-shaped positioning groove (2121) of a first clamping mechanism (2) is enlarged, a clamping plate (32) moves towards one side far away from a rear fixing plate (31) under the driving of the connecting rod (5), a gap at a second clamping mechanism (3) is enlarged, then the PCB (100) with pressed positioning pins is placed on a workbench, the front pin (6) is inserted into a square groove (2111) and the V-shaped positioning groove (2121), a rear pin (7) is inserted into a gap between the fixing plate (31) and the clamping plate (32), and finally, the piston rod of the driving source (41) is controlled to shrink, the pressing block (22) rotates towards one side of the front pin (6) under the elastic action of the pressure spring (24) and presses the front pin (6) to realize positioning and clamping at the V-shaped positioning groove (2121), the clamping plate (32) moves towards one side of the rear fixing plate (31) under the action of the connecting rod (5), the gap between the rear fixing plate (31) and the clamping plate (32) is reduced, and the rear pin (7) is clamped between the rear fixing plate (31) and the clamping plate (32); after the drilling operation is completed or when the PCB (100) is to be dismounted, the extension of a piston rod of the driving source (41) is controlled, so that the front pin (6) and the rear pin (7) are loosened, and then the PCB (100) together with the front pin (6) and the rear pin (7) is taken out to realize blanking.
2. The clamping device for the PCB numerical control drilling machine according to claim 1, characterized in that: the compression springs (24) are arranged in parallel along the height direction of the installation block (21), and the distance from the connection part of the compression block (22) and the compression springs (24) to the collision part of the compression block and the front pin (6) is larger than the distance from the connection part of the compression block (22) and the front rotary shaft (23) to the collision part of the compression block and the front pin (6).
3. The clamping device for the PCB numerical control drilling machine according to claim 1, characterized in that: keep away from the one end of connecting rod (5) and compact heap (22) the lateral wall of preceding pivot (23) one end is contradicted, connecting rod (5) set up about compact heap (22) symmetry with pressure spring (24), when connecting rod (5) removed towards pressure spring (24) one end, pressure spring (24) shrink, before pin (6) one side is rotated towards keeping away from in compact heap (22), preceding pin (6) loosen.
4. The clamping device for the PCB numerical control drilling machine according to claim 1, characterized in that: all be equipped with scute (33) between the both ends of clamp plate (32) and connecting rod (5), scute (33) are the L type, scute (33) minor face end fixing is equipped with first round pin axle (35), first round pin axle (35) and clamp plate (32) swing joint, the turning department of scute (33) rotates and is equipped with back pivot (34), back pivot (34) and base (1) fixed connection, the long limit end fixedly connected with second round pin axle (36) of scute (33), second round pin axle (36) with connecting rod (5) rotate and are connected.
5. The clamping device for the PCB numerical control drilling machine according to claim 1, characterized in that: the driving source (41) adopts telescopic drive equipment, driving source (41) and preceding pivot (23) homonymy set up, drive pendulum board (42) run through and are equipped with drive pivot (43), drive pivot (43) with base (1) fixed connection, the both ends of drive pendulum board (42) respectively with driving source (41) with connecting rod (5) are articulated, interval between drive pivot (43) and driving source (41) is greater than drive pivot (43) with interval between connecting rod (5).
6. A work table, characterized in that: the clamping device for the PCB numerical control drilling machine comprises the clamping device for the PCB numerical control drilling machine as claimed in any one of claims 1 to 5, the workbench further comprises a bedplate (8), a plurality of connecting seats (9) fixedly laid on the bedplate (8), and a plurality of upper cover plates (10) arranged at intervals, wherein the connecting seats (9) are arranged on one side, away from the bedplate (8), of the upper cover plates (10), the clamping device is detachably arranged between two adjacent upper cover plates (10), and two sides of the clamping device are abutted and attached to the side walls of the upper cover plates (10).
7. The table of claim 6, wherein: the bedplate (8) is made of a honeycomb aluminum plate, and the connecting seat (9) and the upper cover plate (10) are made of aluminum materials.
8. The table of claim 6, wherein: one side of the connecting seat (9) facing the upper cover plate (10) is provided with a plurality of heat dissipation grooves (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010047665.3A CN111113555B (en) | 2020-01-16 | 2020-01-16 | Clamping device for PCB numerical control drilling machine and workbench provided with clamping device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010047665.3A CN111113555B (en) | 2020-01-16 | 2020-01-16 | Clamping device for PCB numerical control drilling machine and workbench provided with clamping device |
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| CN111113555A CN111113555A (en) | 2020-05-08 |
| CN111113555B true CN111113555B (en) | 2022-03-22 |
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| CN109262320A (en) * | 2018-10-16 | 2019-01-25 | 成都金大立科技有限公司 | A kind of double positioning mechanisms for PCB numerically-controlled machine tool |
| CN208629561U (en) * | 2018-07-16 | 2019-03-22 | 成都金大立科技有限公司 | A kind of PCB drilling machine modularization clamp system |
| CN209829957U (en) * | 2019-02-19 | 2019-12-24 | 苏州宝罗机械工程有限公司 | High security punching machine |
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| JP4115080B2 (en) * | 2000-10-10 | 2008-07-09 | 日立ビアメカニクス株式会社 | Printed circuit board processing method and printed circuit board processing machine |
| JP2007268652A (en) * | 2006-03-31 | 2007-10-18 | Hitachi Via Mechanics Ltd | Tool holder and printed circuit board processing machine |
| CN201279687Y (en) * | 2008-09-03 | 2009-07-29 | 深圳市强华科技发展有限公司 | Printed circuit board clamp device and drill lathe |
| CN203993245U (en) * | 2014-06-30 | 2014-12-10 | 张家港海陆环形锻件有限公司 | The quick positioning drill jig of wind tower flange |
| CN106826306B (en) * | 2015-12-07 | 2019-05-21 | 西华大学 | PCB numerical control drilling machine working substance material clamping positioning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207255754U (en) * | 2017-04-26 | 2018-04-20 | 深圳市强华科技发展有限公司 | A kind of printing board PCB drilling machine clamping device |
| CN208629561U (en) * | 2018-07-16 | 2019-03-22 | 成都金大立科技有限公司 | A kind of PCB drilling machine modularization clamp system |
| CN109262320A (en) * | 2018-10-16 | 2019-01-25 | 成都金大立科技有限公司 | A kind of double positioning mechanisms for PCB numerically-controlled machine tool |
| CN209829957U (en) * | 2019-02-19 | 2019-12-24 | 苏州宝罗机械工程有限公司 | High security punching machine |
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