CN115194483A - Square hole tapper, tapping system and tapping method - Google Patents
Square hole tapper, tapping system and tapping method Download PDFInfo
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- CN115194483A CN115194483A CN202210912850.3A CN202210912850A CN115194483A CN 115194483 A CN115194483 A CN 115194483A CN 202210912850 A CN202210912850 A CN 202210912850A CN 115194483 A CN115194483 A CN 115194483A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010079 rubber tapping Methods 0.000 title abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 118
- 238000005553 drilling Methods 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 22
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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Abstract
The application relates to a square hole tapper, a tapping system and a tapping method, comprising the following steps: the shell is provided with an opening, the opening comprises at least three edges, and the edges are linear; the drill rod is rotatably arranged in the shell, a drill bit is arranged at one end of the drill rod, two ends of the drill rod penetrate through the shell, and the end provided with the drill bit penetrates through the opening; at least three cutting knives, one cutting knife is correspondingly arranged on one edge and can move along the length direction of the edge; and the drill rod rotates to drive the cutting knife to reciprocate on the edge through the connecting structure. The square hole digger of this application easy operation is convenient, can once only accomplish the operation of square hole trompil, and the trompil is efficient, and the opening shape confirms according to the square hole shape, and the square hole shape of opening is the same with casing upper shed shape, has guaranteed the precision of the square hole of opening and the uniformity of a plurality of square holes.
Description
Technical Field
The application relates to the technical field of automobile manufacturing, in particular to a square hole tapper, a tapping system and a tapping method.
Background
At present, in the trial-manufacturing stage of body in white, need carry on the demand to the automobile body transformation of different degrees satisfying usually, some transformation schemes need to open rectangular hole or square hole on the automobile body.
In the related art, the method of drilling the square hole is to drill a round hole by a round hole drilling device, and then polish the round hole into the square hole by a polisher, or directly cut the square hole by a cutting machine to form the square hole.
However, the square holes formed by the two methods for forming the square holes in the related art are not regular enough, and cannot meet the requirement of component mounting accuracy.
Disclosure of Invention
The embodiment of the application provides a square hole tapper, a tapping system and a tapping method, and aims to solve the problem that square holes tapped by a tapping method in the related art are not regular enough and cannot meet the requirement of part installation accuracy.
On the one hand, the application provides a square hole digger, and the technical scheme who adopts is:
a square hole cutter comprising:
the shell is provided with an opening, the opening comprises at least three edges, and the edges are linear;
the drill rod is rotatably arranged in the shell, a drill bit is arranged at one end of the drill rod, two ends of the drill rod penetrate through the shell, and the end provided with the drill bit penetrates through the opening;
at least three cutting knives, one cutting knife is correspondingly arranged on one edge and can move along the length direction of the edge;
and the drill rod rotates to drive the cutting knife to reciprocate on the edge through the connecting structure.
In some embodiments, the drill rod is provided with a plurality of arc segments located in the casing, the plurality of arc segments are distributed along the length direction of the drill rod, and the connecting structure is respectively connected with the arc segments and the cutting knife in a rotating manner.
Through adopting above-mentioned technical scheme, the arc top of segmental arc rotates around the drilling rod axis when the drilling rod rotates, has longer displacement distance in the direction of perpendicular to drilling rod axis when it is rotated to relative opposite side by drilling rod one side to accessible connection structure transmits this displacement to the cutting knife and removes with the drive cutting knife.
In some embodiments, the connection structure comprises:
the driving rod is perpendicular to the drill rod and is in rotary connection with the arc-shaped section;
the connecting rod is perpendicular to the drill rod and is rotationally connected with the cutting knife;
and the connecting piece is connected with the driving rod and the connecting rod, and the driving rod and the connecting rod can rotate relatively.
Through adopting above-mentioned technical scheme, when the drilling rod rotates, drive the actuating lever through the arc section and remove in perpendicular to drilling rod axis direction, the actuating lever passes through the connecting piece and drives the connecting rod removal, because the connecting rod rotates with the cutting knife to be connected, the connecting rod removes and can drive the cutting knife and remove on the border, thereby realize that the drilling rod rotates and make cutting knife reciprocating motion's function on the border through connection structure, only need rotate the drilling rod and can make a plurality of cutting knife reciprocating motion simultaneously in order to cut the trompil, moreover, the steam generator is simple in structure, and convenient for operation, the trompil is efficient.
In some embodiments, the projections of the arc-shaped sections in the axial direction of the drill rod are distributed at equal intervals along the circumferential direction of the drill rod.
In some embodiments, the edge is provided with a sliding rail along the length direction of the edge, the cutting knife is connected with the sliding rail in a sliding way through a connecting component, and the cutting knife is contacted with the sliding rail through a rolling component;
the connecting assembly comprises an inner sheet and an outer sheet which are clamped on two sides of the cutting knife, the cutting knife is connected with the inner sheet and the outer sheet through bolts, clamping strips are arranged on one sides, far away from the cutting edge of the cutting knife, of the inner sheet and the outer sheet, and sliding grooves which are in sliding fit with the sliding rails are formed in the inner sheet, the outer sheet and the clamping strips.
By adopting the technical scheme, the detachable assembly of the cutting knife on the shell can be realized, when the cutting knife needs to be replaced, the bolt can be loosened, the outer sheet and the cutting knife can be detached, the outer sheet, the inner sheet and the cutting knife are connected and slidably assembled on the sliding rail through the bolt after the cutting knife is replaced, and when the cutting knife is damaged, only the cutting knife needs to be replaced, so that the service life of the tapper can be prolonged; and the arrangement of the rolling piece can reduce the frictional resistance between the cutting knife and the sliding rail.
In some embodiments, the end of the drill rod away from the drill bit is provided with a connecting end with a polygonal cross section, and the connecting end is used for being connected with a drill gun.
In some embodiments, a sleeve which is arranged outside the drill rod in a surrounding mode is arranged on the outer wall of the shell, the sleeve is coaxial with the drill rod, and the end face, far away from the shell, of the sleeve is provided with a gear face.
In some embodiments, the drill rod axis is perpendicular to the opening plane.
In a second aspect, the present application provides a square hole trompil system, include as above square hole tapper and drill gun, drill gun include the body of a gun and be used for with the chuck that the drilling rod is connected, be fixed with coaxial circle on the body of a gun and locate the outer solid fixed cylinder of chuck, gu fixed cylinder keeps away from the terminal surface of the body of a gun is established to the gear face.
Through adopting above-mentioned technical scheme, when drilling, the drilling rod is connected the back with the chuck of boring the rifle, and telescopic gear face meshing on the accessible bore rifle goes up the gear face of solid fixed cylinder and the casing, when the chuck of boring the rifle rotates and drives the drilling rod and rotate, because solid fixed cylinder and telescopic meshing, can restrict the sleeve and take place to rotate, and then restriction casing rotates, makes the casing position keep fixed to improve the stability of trompil work and ensure the accuracy nature of trompil.
In a third aspect, the present application provides a method for opening a square hole, which uses the square hole opener as described above, including the following steps:
aligning the opening to a designed hole forming position on the sheet metal part, and enabling the drill bit to be located in the center of the designed hole forming position;
rotating the drill rod until the drill bit drills through the sheet metal part;
and continuously rotating the drill rod, driving the cutting knives to reciprocate on the edges through the connecting structure, and cutting the sheet metal part by the plurality of cutting knives until a required square hole is cut.
The technical scheme who provides this application brings beneficial effect includes:
the embodiment of the application provides a square hole tapper, which is characterized in that a shell is arranged for a drill rod and cutting knives to be installed, an opening in the shell can be designed according to the shape of a hole to be processed, the cutting knives can be movably designed on the edge of the opening, so that when the shell is fixedly arranged on a body-in-white, the body-in-white can be cut through the movement of the cutting knives, and the cutting knives are matched to cut out the required square hole; during actual cutting, one end, provided with a drill bit, of the drill rod firstly drills through the sheet metal part at the designed hole opening position of the body in white, the drill rod can play a role in positioning the whole device and facilitate subsequent cutting, then the drill rod is rotated to drive the cutting knife to reciprocate on the edge through the connecting structure so as to cut the sheet metal part, and the cutting knives are matched to remove redundant sheet metal at the designed hole opening position so as to form a required square hole; the hole digger is simple and convenient to use and operate, can once only accomplish the square hole trompil operation, and the trompil is efficient, and the opening shape confirms according to the square hole shape, and the square hole shape of opening is the same with casing upper shed shape, has guaranteed the precision of the square hole of opening and the uniformity of a plurality of square holes.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a square hole tapper provided in an embodiment of the present application;
fig. 2 is a schematic view of an internal structure of a square hole cutter provided in an embodiment of the present application;
fig. 3 is a bottom view of a square hole opener provided in accordance with an embodiment of the present application;
FIG. 4 is a schematic diagram of a square hole cutter provided in accordance with an embodiment of the present application with the housing removed;
fig. 5 is a schematic structural diagram of a connection assembly in a square hole opener according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a drill rod in a square hole opener according to an embodiment of the present application;
FIG. 7 is a top view of a drill rod in a square hole opener provided in accordance with an embodiment of the present application;
fig. 8 is a cross-sectional view of a split housing and a sleeve in a square hole cutter according to an embodiment of the present application;
FIG. 9 is an enlarged schematic view at A of FIG. 8;
fig. 10 is a schematic structural view of the drill gun.
In the figure: 1. a housing; 101. an opening; 102. an edge; 2. drilling a rod; 201. a drill bit; 202. an arc-shaped section; 203. a connecting end; 3. a cutting knife; 301. a roller; 4. a connecting structure; 401. a drive rod; 402. a connecting rod; 403. a connecting rod; 5. a slide rail; 6. a connecting assembly; 601. an inner sheet; 602. an outer sheet; 603. clamping the strip; 604. mounting holes; 7. a sleeve; 701. an operation hole; 8. drilling a gun; 801. a gun body; 802. a chuck; 803. and (4) fixing the cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
The embodiment of the application provides a square hole tapper, a tapping system and a tapping method, and solves the problem that the square holes drilled by the existing tapping method are not regular enough and cannot meet the requirement of part installation accuracy.
Referring to fig. 1 to 10, a square hole cutter provided in the embodiments of the present application includes a housing 1, a drill rod 2, a cutting knife 3, and a connection structure 4 connecting the drill rod 2 and the cutting knife 3.
Referring to fig. 1-3, the housing 1 is a hollow structure, and the shape of the hollow structure can be designed according to needs, and can be a rectangular parallelepiped, a cylinder, a prism or other shapes with planes; an opening 101 is arranged on the shell 1, the opening 101 comprises at least three edges 102, the edges 102 are linear, correspondingly, the opening 101 is arranged on a plane of the shell 1, and the shape of the opening 101 can be triangular, rectangular or other polygons; in this embodiment, the housing 1 is rectangular, the opening 101 is formed by cutting one side of the housing 1, and the opening 101 has four edges 102, and in other embodiments, the opening 101 with a desired shape and size can be cut from the plane of the housing 1 as needed to meet different opening requirements.
Referring to fig. 1-3, a drill rod 2 is rotatably disposed in a housing 1, a drill bit 201 is disposed at one end of the drill rod 2, two ends of the drill rod 2 penetrate through the housing 1, and one end of the drill rod 2, which is provided with the drill bit 201, penetrates through the housing 1 through an opening 101, specifically, an axis of the drill rod 2 and a plane of the opening 101 may be perpendicular to each other or form a certain included angle, one end of the drill rod 2, which is not provided with the drill bit 201, penetrates through a side wall of the housing 1, and accordingly, a through hole penetrating through the drill rod 2 is formed in the side wall of the housing 1, and the drill rod 2 is rotatably connected with the housing 1 through a bearing at the through hole. In the present embodiment, the drill rod 2 is perpendicular to the plane of the opening 101, and accordingly, the drill rod 2 is perpendicular to the side of the housing 1 having the opening 101 and the side opposite to the opening 101, and the drill rod 2 passes through the side wall of the housing 1 opposite to the opening 101.
Referring to fig. 1-3, the number of the cutting knives 3 is at least three, one cutting knife 3 is correspondingly arranged on one edge 102 and can move along the length direction of the edge 102, specifically, the cutting knife 3 is a serrated knife, the length direction of the serrated knife is consistent with the length direction of the edge 102 where the serrated knife is arranged, and the cutting surface of the cutting knife 3 faces away from the direction of the shell 1. In this embodiment, the number of the cutting knives 3 is four according to the number of the edges 102, and in other embodiments, different cutting knives 3 can be selected according to the requirement.
Through the setting, casing 1 supplies drilling rod 2 and cutting knife 3 to install, and the shape in the hole that opening 101 can process as required designs, and cutting knife 3 is mobilizable design on opening 101 border 102 for casing 1 accessible cutting knife 3's removal cuts the white automobile body when the rigidity on the white automobile body, and required square hole can be cut out in the cooperation of a plurality of cutting knives 3. During actual cutting, one end, provided with a drill bit 201, of the drill rod 2 firstly drills through a sheet metal part at a designed hole opening position of a white vehicle body, the drill rod 2 can play a role in positioning the whole device to facilitate subsequent cutting, then the drill rod 2 is rotated to drive the cutting knife 3 to reciprocate on the edge 102 through the connecting structure 4 to cut the sheet metal part, and the cutting knives 3 are matched with each other to remove redundant sheet metal at the designed hole opening position to form a required square hole; the hole digger is simple and convenient to use and operate, can once only accomplish the square hole trompil operation, and it is efficient to trompil, and opening 101 shape confirms according to the square hole shape, and the square hole shape of opening is the same with casing 1 upper shed 101 shape, has guaranteed the precision of the square hole of opening and the uniformity of a plurality of square holes.
4-7, further, the drill rod 2 is provided with a plurality of arc segments 202 located in the casing 1, the plurality of arc segments 202 are distributed along the length direction of the drill rod 2, and the connecting structure 4 is respectively connected with the arc segments 202 and the cutting knife 3 in a rotating manner; correspondingly, the number of the arc segments 202 is the same as that of the cutting knives 3, and one arc segment 202 corresponds to one cutting knife 3, and the number of the arc segments 202 is four in this embodiment.
Referring to fig. 4-7, specifically, the arc segment 202 is formed by bending the drill rod 2, and when the drill rod 2 rotates, the arc top of the arc segment 202 rotates around the axis of the drill rod 2, and when the drill rod 2 rotates from one side of the drill rod 2 to the other opposite side of the drill rod 2, the arc top has a longer displacement distance in the direction perpendicular to the axis of the drill rod 2, so that the displacement can be transmitted to the cutting knife 3 through the connecting structure 4 to drive the cutting knife 3 to move.
Referring to fig. 4-7, further, the projections of the plurality of arc segments 202 in the axial direction of the drill rod 2 are distributed at equal intervals along the axial direction of the drill rod 2, and in the present embodiment, two adjacent arc segments 202 in the four arc segments 202 are distributed at 90 ° in the axial direction of the drill rod 2.
As shown in fig. 4 to 7, the connection structure 4 comprises a driving rod 401, a connecting rod 402 and a connecting member, wherein the driving rod 401 is perpendicular to the drill rod 2 and rotatably connected to the arc-shaped section 202, the connecting rod 402 is perpendicular to the drill rod 2 and rotatably connected to the cutting blade 3, and the connecting member is used for connecting the driving rod 401 and the connecting rod 402 and enabling the driving rod 401 and the connecting rod 402 to rotate relatively.
Referring to fig. 4-7, specifically, one end of the driving rod 401 is rotatably connected to the arc-shaped section 202 and connected to the arc top of the arc-shaped section 202, one end of the connecting rod 402 is rotatably connected to the cutting knife 3, and the other end is connected to the driving rod 401 through a connecting member; because the distances from the arc-shaped sections 202 to the plane of the opening 101 are different, the connecting piece is a connecting rod 403 or a pin shaft, for the arc-shaped sections 202 far away from the plane of the opening 101, the connecting piece in the connecting structure 4 connected with the arc-shaped sections is the connecting rod 403, the axis of the connecting rod 403 is parallel to the axis of the drill rod 2, and two ends of the connecting rod 403 are respectively connected with the driving rod 401 and the connecting rod 402 in a rotating manner; for the arc-shaped section 202 closest to the plane of the opening 101, the connecting piece in the connecting structure 4 connected with the arc-shaped section is a pin shaft, the pin shaft is arranged at the end part of the connecting rod 402, and the pin shaft is rotatably arranged in a pin hole arranged at the end part of the driving rod 401 in a penetrating manner, so that the rotary connection between the driving rod 401 and the connecting rod 402 is realized.
Further, the length of the cutting knife 3 should be less than the length of the edge 102, specifically, the length of the cutting knife 3 should be the difference between the length of the edge 102 where the cutting knife is located and the distance that the cutting knife 3 moves when the drill rod 2 rotates for half a circle.
Through the above-mentioned setting, when drilling rod 2 rotates, drive actuating lever 401 through segmental arc 202 and remove in 2 axis direction of perpendicular to drilling rod, actuating lever 401 passes through connecting rod 403 or round pin axle drive connecting rod 402 and removes, because connecting rod 402 rotates with cutting knife 3 to be connected, connecting rod 402 removes and can drive cutting knife 3 and remove on border 102, thereby realize that drilling rod 2 rotates and makes cutting knife 3 reciprocating motion's function on border 102 through connection structure 4, only need rotate drilling rod 2 and can make a plurality of cutting knives 3 reciprocating motion simultaneously in order to cut the trompil, simple structure convenient operation, it is efficient to open a hole.
Referring to fig. 8 and 9, the edge 102 is provided with a sliding rail 5 along the length direction thereof, the cutting knife 3 is slidably connected with the sliding rail 5 through a connecting component 6, and the cutting knife 3 is in contact with the sliding rail 5 through a rolling component.
Referring to fig. 5, specifically, the slide rail 5 is T-shaped, the connecting assembly 6 includes an inner plate 601 and an outer plate 602 which clamp two sides of the cutting knife 3, the inner plate 601 and the outer plate 602 are both attached to the cutting knife 3, and are fixed by bolts penetrating through the inner plate 601, the outer plate 602 and the cutting knife 3, and accordingly, the inner plate 601, the outer plate 602 and the cutting knife 3 are respectively provided with mounting holes 604 for the bolts to pass through; the tops of the inner sheet 601 and the outer sheet 602 are respectively bent towards the space between the inner sheet 601 and the outer sheet 602 to form a clamping strip 603, a T-shaped sliding groove in sliding fit with the sliding rail 5 is formed between the two clamping strips 603 and between the inner sheet 601 and the outer sheet 602, and the cutting knife 3 is slidably assembled on the sliding rail 5 through the inner sheet 601, the outer sheet 602 and the clamping strips 603; the inner sheet 601 is further provided with a convex block, and the end part of the connecting rod 402 is rotatably connected with the convex block to realize the rotary connection between the connecting rod 402 and the cutting knife 3.
Referring to fig. 5, further, the sliding rail 5 is embedded in the T-shaped sliding groove and then contacts with the back surface of the cutting knife 3, and the rolling member is arranged on the back surface of the cutting knife 3 and contacts with the sliding rail 5, so that the frictional resistance between the cutting knife 3 and the sliding rail 5 can be reduced; specifically, a rolling groove is formed in the back surface of the cutting knife 3 along the length direction of the cutting knife, the rolling piece is a roller 301 which is rotatably embedded in the rolling groove, and the roller 301 protrudes out of the rolling groove and contacts with the sliding rail 5.
Through the setting, can realize the demountable assembly of cutting knife 3 on casing 1, when needs change cutting knife 3, can loosen the bolt and demolish outer piece 602 and cutting knife 3, change behind the cutting knife 3 rethread bolt with outer piece 602, inner piece 601 and cutting knife 3 connect and sliding assembly on slide rail 5, when cutting knife 3 damaged, only need change cutting knife 3, can prolong the life of hole digger.
Referring to fig. 4, further, one end of the drill rod 2 away from the drill bit 201 is provided with a connecting end 203 with a polygonal cross section, the connecting end 203 is used for being connected with the drill gun 8, specifically, the drill gun 8 is provided with a chuck 802 connected with the connecting end 203 of the drill rod 2, the chuck 802 is provided with a clamping groove, the connecting end 203 is clamped and embedded in the chuck 802 and screwed and fixed, the clamping groove is generally hexagonal in cross section, and therefore, the connecting end 203 is provided with a hexagonal cross section in this embodiment.
Through the above arrangement, when square hole drilling operation is performed, the drill rod 2 and the drill gun 8 are connected through the connecting end 203, the drill gun 8 is started to drive the drill rod 2 to rotate to perform drilling, and the drilling efficiency can be improved.
Referring to fig. 8 and 10, a sleeve 7 which is arranged outside the drill rod 2 in a surrounding manner is arranged on the outer wall of the casing 1, the sleeve 7 is coaxial with the drill rod 2, the end face, away from the casing 1, of the sleeve 7 is a gear face, the sleeve 7 is used for being connected with a drill gun 8 to limit the rotation of the casing 1, specifically, a fixing cylinder 803 which is arranged outside the chuck 802 in a surrounding manner is fixed on the drill gun 8, and the end face, away from a gun body 801 of the drill gun 8, of the fixing cylinder 803 is a gear face and is engaged with the gear face of the sleeve 7.
Referring to fig. 8, further, an operation hole 701 is formed on a side wall of the sleeve 7, and the operation hole 701 is used for an operator to insert a tightening key to tighten the drill rod 2 and the chuck 802.
When drilling, the drilling rod 2 is connected with the chuck 802 of the drill gun 8, the gear surface of the fixed cylinder 803 on the drill gun 8 can be meshed with the gear surface of the sleeve 7 on the shell 1, when the chuck 802 of the drill gun 8 rotates to drive the drilling rod 2 to rotate, the sleeve 7 can be limited to rotate due to the meshing of the fixed cylinder 803 and the sleeve 7, the shell 1 is further limited to rotate, the position of the shell 1 is kept fixed, and therefore the stability of the hole opening work is improved and the accuracy of the hole opening is ensured.
The implementation principle of the embodiment is as follows: when a square hole needs to be formed in the vehicle body remanufacturing process, the connecting end 203 on the drill rod 2 is arranged in the chuck 802 on the drill gun 8, the drill rod 2 is screwed through the operation hole 701 by using a screwing key, and meanwhile, a gear surface on the sleeve 7 is meshed with a gear surface of the fixed cylinder 803; the shell 1 is close to the designed hole opening position, the drill bit 201 of the drill rod 2 is located at the center of the designed hole opening position, the drill gun 8 is started, the drill rod 2 rotates until the drill bit 201 drills through the sheet metal part for positioning, the drill gun 8 is continuously kept in a starting state, the drill rod 2 rotates, and the cutting knife 3 is driven by the connecting structure 4 to reciprocate to cut the sheet metal part until a square hole is cut; the whole pore-forming process is simple to operate, pore-forming can be performed at one time, pore-forming efficiency is high, the precision of the formed square holes is high, and the consistency of the square holes is high when the square holes are formed.
Another embodiment of the present application provides a square hole opening system comprising the square hole opener and the drill gun 8 as described above.
Referring to fig. 10, the drill gun 8 includes a gun body 801 and a chuck 802 for connecting with the drill rod 2, the chuck 802 has a slot for engaging with the connecting end 203 of the drill rod 2, the gun body 801 further has a fixed cylinder 803 coaxially arranged outside the chuck 802, an end surface of the fixed cylinder 803 far from the gun body 801 is a gear surface, and the gear surface of the fixed cylinder 803 can engage with a gear surface on the sleeve 7 of the square hole opener.
Another embodiment of the present application provides a method for opening a square hole, which uses the square hole opener described above to open a hole, including the following steps:
the opening 101 is aligned with the design hole location on the sheet metal part and the drill bit 201 is centered in the design hole location.
The drill rod 2 is turned until the drill bit 201 drills through the sheet metal part.
The drill rod 2 continues to rotate, the cutting knives 3 are driven to reciprocate on the edge 102 through the connecting structure 4, and the plurality of cutting knives 3 cut the sheet metal part until the required square hole is cut.
Specifically, when the square hole is needed in the vehicle body remanufacturing process, the shell 1 is close to the design hole opening position, the drill bit 201 of the drill rod 2 is located at the center of the design hole opening position, the drill rod 2 is rotated to the drill bit 201 to penetrate through the sheet metal part for positioning, the drill rod 2 is continuously rotated, and the drill rod 2 is rotated to drive the cutting knife 3 to reciprocate through the connecting structure 4 to cut the sheet metal part until the square hole is cut. Whole trompil process easy operation can once become the pore-forming, and the trompil is efficient, and the square hole precision of institute is high, and the uniformity of a plurality of square holes when opening a plurality of square holes is high.
Further, a drill gun 8 may be used to drive the drill rod 2 in rotation.
By adopting the technical scheme, when square hole drilling is carried out, the end, provided with the drill bit 201, of the drill rod 2 firstly drills through the sheet metal part at the designed hole drilling position of the body in white, the drill rod 2 can play a role in positioning the whole device and facilitate subsequent cutting, then the drill rod 2 is rotated to drive the cutting knife 3 to reciprocate on the edge 102 through the connecting structure 4 so as to cut the sheet metal part, and the cutting knives 3 are matched to remove redundant sheet metal at the designed hole drilling position so as to form a required square hole; the hole opening method is simple, hole opening operation of the square hole can be completed at one time, hole opening efficiency is high, the shape of the opening 101 is determined according to the shape of the square hole, the shape of the opened square hole is the same as that of the opening 101 in the shell 1, and accuracy of the opened square hole and consistency of the square hole are guaranteed.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A square hole cutter, comprising:
the device comprises a shell (1), wherein an opening (101) is formed in the shell, the opening (101) comprises at least three edges (102), and the edges (102) are linear;
the drill rod (2) is rotatably arranged in the shell (1), one end of the drill rod (2) is provided with a drill bit (201), two ends of the drill rod (2) penetrate through the shell (1), and one end provided with the drill bit (201) penetrates through the opening (101);
at least three cutting knives (3), wherein one cutting knife (3) is correspondingly arranged on one edge (102) and can move along the length direction of the edge (102);
and the drill rod (2) is connected with a connecting structure (4) of the cutting knife (3), and the drill rod (2) rotates to drive the cutting knife (3) to reciprocate on the edge (102) through the connecting structure (4).
2. The square hole opener according to claim 1, wherein: the drill rod (2) is provided with a plurality of arc sections (202) positioned in the shell (1), the arc sections (202) are distributed along the length direction of the drill rod (2), and the connecting structure (4) is respectively connected with the arc sections (202) and the cutting knife (3) in a rotating mode.
3. A square hole opener according to claim 2, wherein the connecting structure (4) comprises:
a drive rod (401) perpendicular to the drill rod (2) and rotationally connected to the arc-shaped section (202);
a connecting rod (402) which is vertical to the drill rod (2) and is rotationally connected with the cutting knife (3);
a connecting member which connects the driving rod (401) and the connecting rod (402) and the driving rod (401) and the connecting rod (402) can rotate relatively.
4. The square hole opener according to claim 3, wherein: the projections of the arc-shaped sections (202) in the axial direction of the drill rod (2) are distributed at equal intervals along the circumferential direction of the drill rod (2).
5. The square hole opener according to claim 1, wherein: the edge (102) is provided with a sliding rail (5) along the length direction of the edge, the cutting knife (3) is connected with the sliding rail (5) in a sliding manner through a connecting component (6), and the cutting knife (3) is in contact with the sliding rail (5) through a rolling piece;
wherein, coupling assembling (6) including the centre gripping in inner plate (601) and outer piece (602) of cutting knife (3) both sides, cutting knife (3) pass through the bolt with inner plate (601) with outer piece (602) are connected, inner plate (601) with outer piece (602) keep away from one side of cutting knife (3) cutting edge all is provided with card strip (603), inner plate (601), outer piece (602) with card strip (603) form be used for with slide rail (5) sliding fit's spout.
6. The square hole opener according to claim 1, wherein: one end of the drill rod (2) far away from the drill bit (201) is provided with a connecting end (203) with a polygonal section, and the connecting end (203) is used for being connected with a drilling gun (8).
7. The square hole opener according to claim 1, wherein: the drill rod drilling device is characterized in that a sleeve (7) which is arranged outside the drill rod (2) in a surrounding mode is arranged on the outer wall of the shell (1), the sleeve (7) is coaxial with the drill rod (2), and the end face, far away from the shell (1), of the sleeve (7) is arranged to be a gear face.
8. The square hole opener according to claim 1, wherein: the axis of the drill rod (2) is perpendicular to the plane of the opening (101).
9. A square hole drilling system, comprising a square hole drilling machine and a drilling gun (8) according to any one of claims 1-8, wherein the drilling gun (8) comprises a gun body (801) and a chuck (802) for connecting with the drill rod (2), a fixed cylinder (803) coaxially arranged outside the chuck (802) is fixed on the gun body (801), and the end surface of the fixed cylinder (803) far away from the gun body (801) is provided with a gear surface.
10. A method for drilling a square hole is characterized by comprising the following steps: the square hole opener of claim 1, including the steps of:
aligning the opening (101) to a designed hole forming position on a sheet metal part, and enabling the drill bit (201) to be located at the center of the designed hole forming position;
rotating the drill rod (2) until the drill bit (201) drills through a sheet metal part;
the drill rod (2) continues to rotate, the cutting knives (3) are driven to reciprocate on the edges (102) through the connecting structure (4), and the cutting knives (3) cut the sheet metal part until required square holes are cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210912850.3A CN115194483B (en) | 2022-07-31 | 2022-07-31 | Square hole puncher, punching system and punching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210912850.3A CN115194483B (en) | 2022-07-31 | 2022-07-31 | Square hole puncher, punching system and punching method |
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| CN115194483A true CN115194483A (en) | 2022-10-18 |
| CN115194483B CN115194483B (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210912850.3A Active CN115194483B (en) | 2022-07-31 | 2022-07-31 | Square hole puncher, punching system and punching method |
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| CN214443259U (en) * | 2021-02-25 | 2021-10-22 | 重庆杰泰消防安装工程有限公司 | Perforator for fire-fighting construction |
| CN215786913U (en) * | 2021-08-24 | 2022-02-11 | 天津中海龙腾能源科技有限公司 | Pipeline hole digger for oil exploitation equipment |
| CN216831642U (en) * | 2022-02-22 | 2022-06-28 | 中国建筑一局(集团)有限公司 | Line box trompil device is reserved to masonry wall |
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|---|---|---|---|---|
| US4074778A (en) * | 1976-07-14 | 1978-02-21 | The United States Of America As Represented By The Secretary Of The Interior | Square hole drill |
| CN205362772U (en) * | 2015-12-18 | 2016-07-06 | 辽宁抚工工具有限公司 | Metal hole digger with adjustable |
| CN107571331A (en) * | 2017-10-26 | 2018-01-12 | 浙江中泰绝热材料有限公司 | A kind of heat-insulating shield boring device |
| CN208276239U (en) * | 2018-04-17 | 2018-12-25 | 辽宁抚工工具股份有限公司 | A kind of stable adjustable metal hole making drill |
| CN108856887A (en) * | 2018-05-24 | 2018-11-23 | 嘉善强锐五金制品厂（普通合伙） | A kind of square hole cutter device |
| CN109079205A (en) * | 2018-09-21 | 2018-12-25 | 卫远志 | A kind of polygonal hole processing unit (plant) |
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| CN215786913U (en) * | 2021-08-24 | 2022-02-11 | 天津中海龙腾能源科技有限公司 | Pipeline hole digger for oil exploitation equipment |
| CN216831642U (en) * | 2022-02-22 | 2022-06-28 | 中国建筑一局(集团)有限公司 | Line box trompil device is reserved to masonry wall |
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| Publication number | Publication date |
|---|---|
| CN115194483B (en) | 2023-09-19 |
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