CN115301984A - Automatic device for punching cambered-surface hardware blank - Google Patents
Automatic device for punching cambered-surface hardware blank Download PDFInfo
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- CN115301984A CN115301984A CN202211195189.5A CN202211195189A CN115301984A CN 115301984 A CN115301984 A CN 115301984A CN 202211195189 A CN202211195189 A CN 202211195189A CN 115301984 A CN115301984 A CN 115301984A
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- clamping
- clamping plate
- chuck
- arc
- sliding seat
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- 238000004080 punching Methods 0.000 title abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 5
- 210000000078 claw Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses an automatic device for punching cambered surface hardware blanks in the field of intelligent hardware processing and manufacturing, which comprises a drilling device arranged on a rack, wherein a workbench is arranged beside the drilling device, and a clamping mechanism is arranged on the workbench; the clamping mechanism comprises a chuck rotatably arranged on the workbench, a rotating disc is rotatably arranged in the chuck, and a vortex-shaped wire slot is formed in the end face of the rotating disc; the end surface of the chuck is provided with a radial sliding chute; a sliding seat is slidably mounted on the volute wire groove, and the side surface of the sliding seat is slidably mounted in the radial sliding groove; the circumferential side surface of the rotating disc is provided with worm gear teeth, the circumferential side surface of the chuck is fixedly provided with a worm, and the worm is meshed with the worm gear teeth; the chuck is externally connected with a driving source; and the sliding seat is provided with a double-side clamping unit for clamping the inner side and the outer side of the cambered surface hardware blank from two sides.
Description
Technical Field
The invention relates to the technical field of intelligent hardware machining and manufacturing, in particular to an automatic device for punching cambered-surface hardware blanks.
Background
Hardware: traditional hardware is also called small hardware. Five metals of gold, silver, copper, iron and tin can be made into artworks or metal devices such as knives and swords through manual processing. The hardware in modern society is more extensive, for example hardware and tools, hardware spare part, daily hardware, building hardware and security articles for use etc. little hardware product is mostly not final consumer goods, often need to carry out reprocessing such as trompil, fluting on current five metals blank.
The material source of the hardware is wide. When trompil when carrying out the softer cambered surface five metals blank of geology, cambered surface five metals blank is difficult to the location, and when drilling moreover, the impact force of drill bit is great, not only receives the impact force when the drill bit feeds around its hole site, still receives the traction force when drill bit and hole site friction when the drill bit withdraws, causes to take place around the hole site and warp easily, influences the trompil quality.
Disclosure of Invention
The invention aims to provide an automatic device for punching cambered surface hardware blanks, which can clamp and fix cambered surface hardware blanks with different sizes and has wide applicability; when the cambered surface hardware blank is clamped, the cambered surface hardware blank can be simultaneously clamped and fixed from the inner side and the outer side of the cambered surface hardware blank, the stability of the cambered surface hardware blank is improved when a drill bit is fed and retracted, hole position deformation is avoided, and the hole opening quality is ensured.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic device for punching cambered surface hardware blanks comprises a drilling device arranged on a rack, wherein a workbench is arranged beside the drilling device, and a clamping mechanism for fixing the cambered surface hardware blanks is arranged on the workbench;
the clamping mechanism comprises a chuck rotatably mounted on the workbench, and the end face of the chuck is used for placing a cambered surface hardware blank to be punched; a rotating disc is rotatably mounted in the chuck, and a vortex-shaped wire slot is formed in the end face of the rotating disc; the end face of the chuck is provided with radial sliding grooves which are arranged at intervals along the circumferential direction of the chuck; a sliding seat is slidably mounted on the volute-shaped wire groove, and the side surface of the sliding seat is slidably mounted in the radial sliding groove; the circumferential side surface of the rotating disc is provided with worm gear teeth, the circumferential side surface of the chuck is fixedly provided with a worm, and the worm is meshed with the worm gear teeth; the chuck is externally connected with a driving source;
the sliding seat is provided with a double-sided clamping unit for clamping the inner side and the outer side of the cambered surface hardware blank from two sides; the double-sided clamping unit comprises a first clamping plate and a second clamping plate, wherein the first clamping plate is slidably mounted on the sliding seat, and the second clamping plate is slidably mounted on the sliding seat; the first clamping plate is in threaded connection with a first threaded section arranged on a first screw rod, and the first screw rod is horizontally and rotatably arranged on the sliding seat; the second clamping plate is in threaded connection with a second threaded section arranged on the first screw; the pitch of the first thread segments is less than the pitch of the second thread segments; the second clamping plate is arranged at one end far away from the chuck axis.
As a further scheme of the present invention, a blocking plate is fixedly mounted on one end of the sliding seat close to the second clamping plate, the blocking plate is located above the second clamping plate, and an upper end surface of the blocking plate is lower than an upper end surface of the chuck; a clamping jaw is vertically and slidably mounted on the second clamping plate, and a first spring is arranged between the clamping jaw and the second clamping plate; the blocking plate is used for preventing the clamping jaw from extending.
As a further scheme of the invention, one end of the clamping jaw, which is close to the blocking plate, is provided with a wedge surface.
As a further scheme of the present invention, a first rotating shaft vertically rotates on the first clamping plate, a first friction wheel is fixedly mounted on the first rotating shaft, and the first friction wheel is in frictional contact with a groove wall of the radial sliding groove; a second gear is fixedly arranged on the first rotating shaft, an arc-shaped sliding rack is horizontally and slidably arranged on the first clamping plate, and the arc-shaped sliding rack is meshed with the second gear; and one end of the arc-shaped sliding rack is fixedly provided with a clamping block.
As a further aspect of the present invention, the number of the radial sliding grooves is n, n is an even number, and n > 2; the sliding directions of the adjacent arc-shaped sliding racks are opposite.
As a further scheme of the invention, in the adjacent arc-shaped sliding racks, one end of one arc-shaped sliding rack, which is far away from the clamping block, is provided with a bayonet, and the bayonet is used for being matched with one end of the other arc-shaped sliding rack, which is far away from the clamping block.
As a further scheme of the invention, a third gear is fixedly mounted at one end of the first screw rod close to the second clamping plate, a first rack is vertically and slidably mounted at one end of the sliding seat close to the third gear, and the first rack is meshed with the third gear; a second rotating shaft is rotatably arranged on the sliding seat, a rotating block is fixedly arranged on the second rotating shaft, an air injection pipe is arranged in the rotating block, and the air injection pipe is obliquely arranged and points to the oblique upper part of the second clamping plate; and a fourth gear is fixedly arranged on the second rotating shaft and is meshed with a second rack part fixedly arranged on the first rack.
As a further scheme of the invention, the device also comprises a horizontal positioning mechanism and a vertical lifting mechanism.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can clamp and fix hardware blanks with cambered surfaces of different sizes, and has wide applicability; when the cambered-surface hardware blank is clamped, the cambered-surface hardware blank can be simultaneously clamped and fixed from the inner side and the outer side of the cambered-surface hardware blank, the stability of the cambered-surface hardware blank is improved during feeding and withdrawing of a drill, hole position deformation is avoided, and the hole opening quality is ensured. According to the invention, the blocking plate is used for limiting the extension of the clamping jaw, so that the second clamping plate can move to the outer side of the workpiece through the inner side of the workpiece, then the first clamping plate contacts the inner side of the workpiece to trigger the clamping jaw to extend, the workpiece can be clamped from the outer side by the clamping jaw, the rotating disc does not need to be rotated in advance according to the size of the workpiece to adjust the position of the sliding seat, the labor is saved, and the efficiency is improved.
2. The arc-shaped sliding rack is driven to synchronously extend by utilizing the sliding of the sliding seat in the radial sliding chute, when the radius of a workpiece is increased, the sliding distance of the sliding seat is increased, and the extending distance of the arc-shaped sliding rack is also increased, so that the final clamping position, namely the position of the clamping block is always close to two sides of a hole position to be drilled, and the deformation of the clamping block during drilling is avoided.
3. The invention is provided with an air blowing mechanism for blowing air to the drill hole, cooling and removing chips at the drill hole. The air blow pipe is directly arranged on the sliding seat, so that the air blow pipe can move along with the sliding seat when facing workpieces with different sizes, and the air blow pipe is suitable for workpieces with different sizes. Workpieces of different sizes may not only differ in diameter, but also in thickness. The invention can also adjust the rotation angle of the air blowing pipe according to different thicknesses of the workpiece, so that the air blowing pipe can be always aligned to the hole position.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of an automatic device for opening a cambered-surface hardware blank;
FIG. 2 is a schematic view of the clamping mechanism on the worktable and the structure of the workpiece when the workpiece is placed thereon;
FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged partial view of portion B of FIG. 2 in accordance with the present invention;
FIG. 5 is an enlarged, fragmentary view of portion C of FIG. 2 in accordance with the present invention;
FIG. 6 is a schematic view of the clamping mechanism of the present invention in half section;
FIG. 7 is a schematic view of the worm gear teeth and worm on the chuck in accordance with the present invention;
fig. 8 is a schematic view of the second clamping plate of the sliding seat of the present invention, partially broken away.
In the drawings, the components represented by the respective reference numerals are listed below:
11-a drilling device, 12-a workbench, 13-a workpiece, 14-a horizontal positioning mechanism, 21-a chuck, 22-a rotating disc, 23-a volute-shaped wire groove, 24-a radial sliding groove, 25-a sliding seat, 26-worm gear teeth, 27-a worm, 31-a first clamping plate, 32-a second clamping plate, 33-a first screw, 34-a first threaded section, 35-a second threaded section, 41-a blocking plate, 42-a clamping jaw, 43-a first spring, 44-a wedge surface, 51-a first rotating shaft, 52-a first friction wheel, 53-a second gear, 54-an arc-shaped sliding rack, 55-a clamping block, 56-a bayonet, 61-a third gear, 62-a first rack, 63-a second rotating shaft, 64-a rotating block, 65-an air injection pipe, 66-a fourth gear and 67-a second gear strip part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the invention provides an automatic device for opening a hole in a hardware blank with an arc surface, which comprises a drilling device 11 arranged on a frame, wherein a worktable 12 is arranged beside the drilling device 11, and a clamping mechanism for fixing the hardware blank with the arc surface is arranged on the worktable 12;
the clamping mechanism comprises a chuck 21 rotatably mounted on the workbench 12, and the end face of the chuck 21 is used for placing cambered surface hardware blanks to be punched; a rotating disc 22 is rotatably mounted in the chuck 21, and a volute-shaped wire casing 23 is formed on the end surface of the rotating disc 22; the end surface of the chuck 21 is provided with radial sliding grooves 24, and the radial sliding grooves 24 are arranged at intervals along the circumferential direction of the chuck 21; a sliding seat 25 is slidably mounted on the volute-shaped wire casing 23, and the side surface of the sliding seat 25 is slidably mounted in the radial sliding groove 24; worm gear teeth 26 are arranged on the circumferential side surface of the rotating disc 22, a worm 27 is fixedly mounted on the circumferential side surface of the chuck 21, and the worm 27 is meshed with the worm gear teeth 26; the chuck 21 is externally connected with a driving source;
the sliding seat 25 is provided with a double-sided clamping unit for clamping the inner side and the outer side of the cambered-surface hardware blank on the double sides; the double-sided clamping unit comprises a first clamping plate 31 slidably mounted on the sliding seat 25 and a second clamping plate 32 slidably mounted on the sliding seat 25; the first clamping plate 31 is in threaded connection with a first threaded section 34 arranged on a first screw 33, and the first screw 33 is horizontally and rotatably mounted on the sliding seat 25; the second clamping plate 32 is in threaded connection with a second threaded section 35 provided on the first screw 33; the pitch of the first thread segments 34 is less than the pitch of the second thread segments 35; the second clamping plate 32 is disposed at an end remote from the axis of the chuck 21.
As shown in FIG. 1, in operation, a workpiece 13 to be machined is placed on a workbench 12, and a clamping mechanism on the workbench 12 clamps, centers and positions the workpiece 13. After positioning is finished, the horizontal positioning mechanism 14 on the workbench 12 horizontally moves the workbench 12, the lifting mechanism vertically moves the workbench 12, the workpiece 13 is moved to the side of the drilling device 11, the position of the workpiece 13 is adjusted, then the horizontal positioning mechanism 14 controls feeding of the workpiece 13, and a drill bit on the drilling device 11 performs hole opening on the positioned workpiece 13. The process of the invention for clamping, centering and positioning during working is as follows: as shown in fig. 6 and 7, when the workpiece 13 is placed on the upper end surface of the chuck 21 on the worktable 12, the worm 27 located on the circumferential direction of the chuck 21 is driven to rotate by the external drive source, the worm 27 is meshed with the worm gear teeth 26 on the circumferential direction of the rotary disc 22, and the worm 27 drives the rotary disc 22 to rotate in the chuck 21; at this time, the chuck 21 is stationary and the rotating disk 22 rotates. Since the spiral groove 23 is formed in the end surface of the rotating disk 22, the sliding seat 25 is slidably connected to the spiral groove 23, and the sliding seat 25 is horizontally slidably mounted in the radial slide groove 24 of the chuck 21, and the chuck 21 is stationary, the sliding seat 25 is driven to move in the outer direction of the chuck 21 along the groove length direction of the radial slide groove 24 when the rotating disk 22 rotates. This principle is similar to the clamping of the three-jaw chuck 21. As shown in fig. 6, it is noted that the present invention requires rotating the rotating disc 22 to adjust the position of the sliding seat 25 when placing the workpiece 13, and placing the workpiece 13 on the sliding seat 25 between the first clamping plate 31 and the second clamping plate 32. Thus, during clamping, the rotating disc 22 rotates, and the sliding seat 25 drives the first clamping plate 31 and the second clamping plate 32 to move together along the radial direction of the chuck 21 to the outer side until the first clamping plate 31 contacts the inner side of the workpiece 13 first. At this time, the sliding seat 25 continues to move outward under the driving of the rotating disc 22, and the first clamping plate 31 is stationary due to the obstruction of the workpiece 13, so that the first clamping plate 31 and the sliding seat 25 are relatively displaced, and the first clamping plate 31 moves toward the center of the chuck 21 relative to the sliding seat 25. Because the first clamping plate 31 is screwed on the first thread section 34 of the first screw 33, and the first screw 33 is horizontally and rotatably mounted on the sliding seat 25, when the first clamping plate 31 slides relatively, the first clamping plate 31 drives the first screw 33 to rotate, and the first screw 33 drives the second clamping plate 32, which is also rotatably mounted on the first screw 33, to slide on the sliding seat 25 in the same sliding direction as the first clamping plate 31. However, since the second clamping plate 32 is screwed on the second screw section 35 of the first screw 33, and the screw pitch of the first screw section 34 is smaller than that of the second screw section 35, the sliding distance of the second clamping plate 32 is greater than that of the first clamping plate 31 under the condition that the first screw 33 rotates by the same angle, so that the relative distance between the first clamping plate 31 and the second clamping plate 32 is reduced, and the workpiece 13 between the two is clamped bidirectionally. The worm 27 of the present invention always has a tendency to rotate while the drill is drilling, maintaining the clamping force. The invention can clamp and fix hardware blanks with cambered surfaces of different sizes, and has wide applicability; when the cambered-surface hardware blank is clamped, the cambered-surface hardware blank can be simultaneously clamped and fixed from the inner side and the outer side of the cambered-surface hardware blank, the stability of the cambered-surface hardware blank is improved during feeding and withdrawing of a drill, hole position deformation is avoided, and the hole opening quality is ensured.
As a further aspect of the present invention, a blocking plate 41 is fixedly mounted on one end of the sliding seat 25 close to the second clamping plate 32, the blocking plate 41 is located above the second clamping plate 32, and an upper end surface of the blocking plate 41 is lower than an upper end surface of the chuck 21; a clamping jaw 42 is vertically and slidably mounted on the second clamping plate 32, and a first spring 43 is arranged between the clamping jaw 42 and the second clamping plate 32; the blocking plate 41 serves to block the clamping jaw 42 from elongating.
The present invention requires the position of the slide base 25 to be adjusted by rotating the rotary disc 22 in advance according to the size of the workpiece 13, and the workpiece 13 is placed between the first clamping plate 31 and the second clamping plate 32 on the slide base 25, which requires manual operation and is extremely inconvenient. When the present invention works, as shown in fig. 6 and 8, the second clamping plate 32 of the present invention is located below the blocking plate 41, the blocking plate 41 is fixedly installed at the end of the sliding seat 25, and the upper end surface of the blocking plate 41 is lower than the upper end surface of the chuck 21. When the workpiece 13 is placed, even if the workpiece 13 is positioned outside the second clamping plate 32 on the slide base 25, bidirectional clamping can be performed. As shown in fig. 6 and 8, the workpiece 13 is located outside the second clamping plate 32 on the sliding seat 25, and during operation, the sliding seat 25 moves in the radial sliding groove 24 due to the rotation of the rotary driving disk 22. During the movement, the second clamping plate 32 of the sliding seat 25 passes through the inner side of the workpiece 13. However, since the second clamping plate 32 is located below the blocking plate 41 and the upper end surface of the blocking plate 41 is lower than the upper end surface of the chuck 21, the upper end surface of the chuck 21 is the placing plane of the workpiece 13, the second clamping plate 32 will pass through the inner side of the workpiece 13 until the first clamping plate 31 on the sliding seat 25 contacts with the inner side of the workpiece 13. The upper end surface of the first clamping plate 31 is higher than the upper end surface of the chuck 21. After the first clamping plate 31 contacts the inner side of the workpiece 13, as described above, the rotating disc 22 continues to drive the sliding seat 25 to rotate, the first clamping plate 31 slides relatively on the sliding seat 25, the first screw 33 is driven to rotate, and the first screw 33 drives the second clamping plate 32 to rotate. As shown in fig. 8, the second clamping plate 32 moves away from the lower side of the blocking plate 41, and the clamping jaws 42, which were previously blocked by the blocking plate 41, are extended by the restoring force of the first spring 43, and the clamping jaws 42 are higher than the upper end surface of the chuck 21. Thus, as the first screw 33 continues to rotate, the relative distance between the first clamping plate 31 and the second clamping plate 32 decreases (the process is as described in the previous paragraph), and the workpiece 13 is clamped by the clamping device in a manner of clamping with the first clamping plate 31. The invention utilizes the blocking plate 41 to limit the extension of the clamping jaws 42 at the beginning, so that the second clamping plate 32 can move to the outer side of the workpiece 13 through the inner side of the workpiece 13, then the first clamping plate 31 contacts the inner side of the workpiece 13 to trigger the clamping jaws to extend, so that the clamping jaws can clamp the workpiece 13 from the outer side, the rotating disc 22 does not need to be rotated in advance according to the size of the workpiece 13 to adjust the position of the sliding seat 25, the labor is saved, and the efficiency is improved.
As a further aspect of the present invention, an end of the clamping jaw 42 close to the blocking plate 41 is provided with a wedge surface 44. As shown in fig. 8, this arrangement is to enable the second clamping plate 32 to move again below the blocking plate 41 when it is reset, the elongation being restricted by the blocking plate 41.
As a further aspect of the present invention, a first rotating shaft 51 is vertically rotated on the first clamping plate 31, a first friction wheel 52 is fixedly mounted on the first rotating shaft 51, and the first friction wheel 52 is in frictional contact with a groove wall of the radial sliding groove 24; a second gear 53 is fixedly mounted on the first rotating shaft 51, an arc-shaped sliding rack 54 is horizontally and slidably mounted on the first clamping plate 31, and the arc-shaped sliding rack 54 is meshed with the second gear 53; one end of the arc-shaped sliding rack 54 is fixedly provided with a clamping block 55.
In order to prevent the workpiece 13 from deforming during drilling, the clamping mechanisms on two adjacent sliding seats 25 are used for clamping two sides of the hole position, so that the deformation of the hole position is avoided. However, as shown in fig. 2, when the size of the drilled hole is not changed, as the diameter of the workpiece 13 increases, the distance between two adjacent sliding seats 25 also increases, which means that the distance between the clamping position of the clamping mechanism on two adjacent sliding seats 25 and the hole site also increases, and the ability of maintaining the shape of the hole site is weakened. Therefore, as shown in fig. 3, the first rotating shaft 51 is vertically and rotatably mounted on the first clamping plate 31, and the first friction wheel 52 and the second gear 53 are fixedly mounted on the first rotating shaft 51. When the radius of the workpiece 13 is increased, the moving distance of the sliding seat 25 driven by the rotating disc 22 is increased, the sliding seat 25 moves in the radial sliding groove 24, when moving, the first friction wheel 52 generates friction with the groove wall in the radial sliding groove 24, the first friction wheel 52 rotates to drive the first rotating shaft 51 to rotate, the first rotating shaft 51 rotates to drive the second gear 53 to rotate, the second gear 53 rotates to drive the arc-shaped sliding rack 54 engaged with the second gear to slide, the arc-shaped sliding rack 54 slides to extend towards the hole site to be drilled, so that the distance between the final clamping position, namely the position of the clamping block 55, and the hole site to be drilled is reduced, the clamping position is always close to two sides of the hole site to be drilled, and the deformation of the clamping position during drilling is avoided. The arc-shaped sliding rack 54 is driven to synchronously extend by utilizing the sliding of the sliding seat 25 in the radial sliding groove 24, when the radius of the workpiece 13 is increased, the sliding distance of the sliding seat 25 is increased, and the extending distance of the arc-shaped sliding rack 54 is also increased, so that the final clamping position, namely the position of the clamping block 55 is always close to two sides of a hole position to be drilled, and the deformation of the clamping block 55 during drilling is avoided.
As a further aspect of the present invention, the number of the radial sliding grooves 24 is n, n is an even number, and n > 2; the adjacent arc-shaped sliding racks 54 slide in opposite directions. As shown in fig. 2, this arrangement is to clamp two sides of the hole by using the clamping mechanism on two adjacent sliding seats 25, so as to avoid deformation of the hole.
As a further aspect of the present invention, in the adjacent arc-shaped sliding racks 54, one end of one arc-shaped sliding rack 54 away from the clamping block 55 is provided with a bayonet 56, and the bayonet 56 is used for matching with one end of the other arc-shaped sliding rack 54 away from the clamping block 55. As shown in fig. 4, the arrangement is to avoid interference and collision by using the bayonet 56 to allow two adjacent arc-shaped sliding racks 54 to be staggered when the interactive seat is close to the center of the rotating disc 22.
As a further aspect of the present invention, a third gear 61 is fixedly mounted at one end of the first screw 33 close to the second clamping plate 32, a first rack 62 is vertically and slidably mounted at one end of the sliding seat 25 close to the third gear 61, and the first rack 62 is engaged with the third gear 61; a second rotating shaft 63 is rotatably mounted on the sliding seat 25, a rotating block 64 is fixedly mounted on the second rotating shaft 63, an air injection pipe 65 is mounted in the rotating block 64, and the air injection pipe 65 is obliquely arranged and points to the obliquely upper part of the second clamping plate 32; a fourth gear 66 is fixedly mounted on the second rotating shaft 63, and the fourth gear 66 is engaged with a second rack portion 67 fixedly mounted on the first rack 62.
The invention is also provided with an air blowing mechanism for blowing air to the drill holes, cooling and removing chips at the drill holes. As shown in FIG. 5, the present invention mounts the blowpipe directly on the slide base 25 so that the blowpipe can move along with the slide base 25 when facing workpieces 13 of different sizes, thereby accommodating workpieces 13 of different sizes. Workpieces 13 of different sizes may not only differ in diameter, but also in thickness. The invention can also adjust the rotation angle of the air blowing pipe according to different thicknesses of the workpiece 13, so that the air blowing pipe can always align to the hole position. As shown in fig. 5, during operation, the first clamping plate 31 slides relatively on the sliding seat 25 to drive the first screw 33 to rotate, and the first screw 33 rotates to drive the second clamping plate 32 to move in the same direction as the first clamping plate 31 and reduce the distance therebetween, wherein the final distance therebetween is the thickness of the workpiece 13. As shown in fig. 5, when the first screw 33 rotates, the third gear 61 fixedly mounted on the first screw 33 rotates, the third gear 61 rotates to drive the first rack 62 engaged therewith to move vertically downward, the first rack 62 moves vertically downward to drive the second rack 67 fixedly mounted thereon to move vertically downward, the second rack 67 moves vertically downward to drive the fourth gear 66 with the core thereof to rotate, the fourth gear 66 rotates clockwise to drive the second rotating shaft 63 to rotate clockwise, the rotating base is driven to rotate clockwise, and the rotating base drives the blowing pipe fixedly mounted thereon to deflect. When the rotation angle of the first screw 33 is large, the distance between the second clamping plate 32 and the first clamping plate 31 is reduced, that is, the thickness of the workpiece 13 is reduced, and the distance from the outer end of the sliding seat 25 is increased, so that the deviation angle of the blow pipe is increased, and the blow pipe can be always aligned with the clamping position.
As a further scheme of the invention, the device also comprises a horizontal positioning mechanism 14 and a vertical lifting mechanism. This arrangement is for facilitating adjustment of the position and height of the workpiece 13, and in addition to rotation of the chuck 21, eventually, the hole opening operation can be performed at any position of the workpiece 13.
Claims (8)
1. The utility model provides an cambered surface five metals blank automation equipment for trompil, is including setting up drilling equipment (11) in the frame, its characterized in that: a movable workbench (12) is arranged beside the drilling device (11), and a clamping mechanism for fixing the cambered-surface hardware blank is arranged on the workbench (12);
the clamping mechanism comprises a chuck (21) rotatably mounted on the workbench (12), and the end face of the chuck (21) is used for placing an arc-surface hardware blank to be punched; a rotating disc (22) is rotatably mounted in the chuck (21), and a volute-shaped wire slot (23) is formed in the end face of the rotating disc (22); the end face of the chuck (21) is provided with radial sliding grooves (24), and the radial sliding grooves (24) are arranged at intervals along the circumferential direction of the chuck (21); a sliding seat (25) is slidably mounted on the volute-shaped wire groove (23), and the side surface of the sliding seat (25) is slidably mounted in the radial sliding groove (24); the circumferential side surface of the rotating disc (22) is provided with worm gear teeth (26), the circumferential side surface of the chuck (21) is fixedly provided with a worm (27), and the worm (27) is meshed with the worm gear teeth (26); the chuck (21) is externally connected with a driving source;
the sliding seat (25) is provided with a double-side clamping unit for clamping the inner side and the outer side of the cambered surface hardware blank from two sides; the double-sided clamping unit comprises a first clamping plate (31) and a second clamping plate (32), wherein the first clamping plate is slidably mounted on the sliding seat (25), and the second clamping plate is slidably mounted on the sliding seat (25); the first clamping plate (31) is in threaded connection with a first threaded section (34) arranged on a first screw (33), and the first screw (33) is horizontally and rotatably arranged on the sliding seat (25); the second clamping plate (32) is in threaded connection with a second threaded section (35) arranged on the first screw (33); the pitch of the first thread segments (34) is less than the pitch of the second thread segments (35); the second clamping plate (32) is arranged at one end away from the axis of the chuck (21).
2. The automatic device for opening of the hardware blanks with the arc surfaces as claimed in claim 1, is characterized in that: a blocking plate (41) is fixedly installed at one end, close to the second clamping plate (32), of the sliding seat (25), the blocking plate (41) is located above the second clamping plate (32), and the upper end face of the blocking plate (41) is lower than the upper end face of the chuck (21); a clamping jaw (42) is vertically and slidably mounted on the second clamping plate (32), and a first spring (43) is arranged between the clamping jaw (42) and the second clamping plate (32); the blocking plate (41) serves to block the clamping jaw (42) from elongating.
3. The automatic device for opening of the hardware blanks with arc surfaces as claimed in claim 2, is characterized in that: one end of the clamping claw (42) close to the blocking plate (41) is provided with a wedge surface (44).
4. The automatic device for opening of the hardware blanks with arc surfaces as claimed in claim 2, is characterized in that: a first rotating shaft (51) is vertically rotated on the first clamping plate (31), a first friction wheel (52) is fixedly mounted on the first rotating shaft (51), and the first friction wheel (52) is in friction contact with the groove wall of the radial sliding groove (24); a second gear (53) is fixedly mounted on the first rotating shaft (51), an arc-shaped sliding rack (54) is horizontally and slidably mounted on the first clamping plate (31), and the arc-shaped sliding rack (54) is meshed with the second gear (53); one end of the arc-shaped sliding rack (54) is fixedly provided with a clamping block (55).
5. The automatic device for opening of arc-surface hardware blanks of claim 4, is characterized in that: the number of the radial sliding grooves (24) is n, n is an even number and n is more than 2; the sliding directions of the adjacent arc-shaped sliding racks (54) are opposite.
6. The automatic device for opening of arc-surface hardware blanks of claim 5, is characterized in that: in the adjacent arc-shaped sliding racks (54), one end, far away from the clamping block (55), of one arc-shaped sliding rack (54) is provided with a bayonet (56), and the bayonet (56) is used for being matched with one end, far away from the clamping block (55), of the other arc-shaped sliding rack (54).
7. The automatic device for opening the cambered-surface hardware blank according to claim 6, is characterized in that: a third gear (61) is fixedly mounted at one end, close to the second clamping plate (32), of the first screw (33), a first rack (62) is vertically and slidably mounted at one end, close to the third gear (61), of the sliding seat (25), and the first rack (62) is meshed with the third gear (61); a second rotating shaft (63) is rotatably mounted on the sliding seat (25), a rotating block (64) is fixedly mounted on the second rotating shaft (63), an air injection pipe (65) is mounted in the rotating block (64), and the air injection pipe (65) is obliquely arranged and points to the oblique upper side of the second clamping plate (32); a fourth gear (66) is fixedly arranged on the second rotating shaft (63), and the fourth gear (66) is meshed with a second rack portion (67) fixedly arranged on the first rack (62).
8. The automatic device for opening of the hardware blanks with the arc surfaces as claimed in claim 1, is characterized in that: also comprises a horizontal positioning mechanism (14) and a vertical lifting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211195189.5A CN115301984A (en) | 2022-09-29 | 2022-09-29 | Automatic device for punching cambered-surface hardware blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211195189.5A CN115301984A (en) | 2022-09-29 | 2022-09-29 | Automatic device for punching cambered-surface hardware blank |
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| Publication Number | Publication Date |
|---|---|
| CN115301984A true CN115301984A (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211195189.5A Pending CN115301984A (en) | 2022-09-29 | 2022-09-29 | Automatic device for punching cambered-surface hardware blank |
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| Country | Link |
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| CN (1) | CN115301984A (en) |
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| CN117340785B (en) * | 2023-11-30 | 2024-04-02 | 湖南盛伦智能科技有限公司 | Clamp for machining metal product |
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Application publication date: 20221108 |