Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a jig for inclined hole machining, which utilizes an adjustable base and a jig main body disposed on the adjustable base to ensure the inclined hole machining quality and improve the inclined hole machining efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
A jig for processing inclined holes comprises an adjustable base and a jig main body movably arranged on the upper surface of the adjustable base; the upper surface of the adjustable base is obliquely arranged, and the adjustable base also comprises a fixing piece used for detachably fixing the jig main body; when the fixing piece is used for fixing the workpiece, the design central line of at least one inclined hole to be machined in the workpiece is in a vertical state.
By adopting the technical scheme, in actual work, a workpiece is fixed on the jig main body; after the adjustable base is put on to the tool main part, the mounting can effectively fix the tool main part to indirectly guarantee the stability of work piece in the course of working. At the moment, at least the design central line of an inclined hole to be machined on the workpiece is in a vertical state, namely, the common three-axis machining center can machine and form the inclined hole on the workpiece along the design central line of the inclined hole. After one inclined hole is machined, the fixture main body is loosened through the fixing piece, the fixture main body can be directly rotated by 180 degrees on the adjustable base by a worker, so that the design central line of the other inclined hole to be machined on the workpiece is changed into a vertical state, and the condition that the common three-axis machining center carries out accurate hole machining is met. Through the mode, the operation that a worker repeatedly assembles and disassembles the workpiece is omitted, and the difficulty of inclined hole machining is reduced, so that the inclined hole machining quality on the workpiece is greatly improved, and the inclined hole machining efficiency on the workpiece is greatly improved.
The invention is further configured to: the adjustable base comprises a base which is horizontally arranged; the fixing piece is a permanent magnetic chuck used for bearing the jig main body, and the permanent magnetic chuck is obliquely arranged on the base.
By adopting the technical scheme, after the jig main body is placed on the adjustable base, the permanent magnetic chuck can effectively fix the jig main body on the adjustable base after being magnetized; at this time, the jig main body is inclined and kept stable.
The invention is further configured to: one side edge of the bottom of the permanent magnetic chuck is rotatably arranged with the upper side of the base; and the adjustable base is also provided with a locking assembly for detachably fixing the permanent magnetic chuck.
Through adopting above-mentioned technical scheme, permanent magnetism sucking disc rotates with the base to be connected, and after the locking subassembly was loosened, the staff can rotate permanent magnetism sucking disc in order to adjust permanent magnetism sucking disc's inclination. Through this kind of mode, not only can ensure to wait to process the design central line of inclined hole and can accurately keep vertical state on the work piece, can adapt to the processing demand of different work pieces moreover, help enlarging the application scope of this tool, strengthen its practicality and commonality.
The invention is further configured to: the locking assembly comprises a connecting rod, one end of the connecting rod is hinged with the base, and an arc-shaped groove is formed in the other side of the connecting rod in a penetrating mode; and a locking screw penetrates through the arc-shaped groove, and the end part of the locking screw is in threaded connection with the permanent magnetic chuck.
By adopting the technical scheme, after the locking screw is loosened, the permanent magnetic chuck rotates on the base; in the rotating process of the permanent magnetic chuck, the locking screw can slide along the arc-shaped groove. After the angle adjustment of the permanent magnetic chuck is completed, the locking screw is screwed down and abuts against the connecting rod, so that the permanent magnetic chuck is fixed in a hinged mode.
The invention is further configured to: a limiting block is further fixed on the upper side of the adjustable base, and at least two adjacent side walls of the adjustable base are respectively provided with one limiting block; when the jig main body is in a fixed state, at least two adjacent side walls on the jig main body are respectively abutted against a limiting block.
Through adopting above-mentioned technical scheme, after the tool main part is placed on adjustable base, have two adjacent lateral walls respectively butt with the stopper in the tool main part at least to realize the effective location of tool main part on adjustable base, indirectly improve the accuracy nature of work piece location, and then improve the processingquality of work piece.
The invention is further configured to: the top of the adjustable base is also uniformly formed with anti-skid lines.
Through adopting above-mentioned technical scheme, anti-skidding line can prevent effectively that the tool main part from sliding on adjustable base, guarantees the stability of work piece in the tool main part.
The invention is further configured to: the jig main body comprises a bottom plate used for abutting against the upper surface of the adjustable base, and one surface of the bottom plate, which is far away from the adjustable base, is provided with an embedding groove used for embedding the bottom of a workpiece; the jig main body also comprises a pressing plate which is detachably fixed on one side of the bottom plate, which is far away from the adjustable base, and one side of the pressing plate, which is close to the bottom plate, is provided with a through hole for penetrating a workpiece; when the pressing plate is fixed with the bottom plate, the lower side of the pressing plate is abutted against a shoulder on the workpiece, and the bottom of the workpiece is abutted against the bottom of the embedding groove.
By adopting the technical scheme, in the work, the workpiece is embedded in the embedding groove; when the pressing plate covers the bottom plate, the upper side of the workpiece penetrates through the through hole, the lower side of the pressing plate abuts against a shoulder on the workpiece, and then the workpiece abuts against the bottom of the embedding groove, so that the workpiece is fixed.
The invention is further configured to: and one side of the bottom plate, which is used for being abutted against the adjustable base, is provided with a chip removal hole, and the chip removal hole is communicated with the embedding groove.
By adopting the technical scheme, scrap iron generated in the inclined hole machining process can be discharged through the inner hole and the scrap discharging hole, and the normal work of the cutter is ensured.
The invention is further configured to: the bottom plate is provided with a plurality of lower pin holes, the pressing plate is provided with a plurality of upper pin holes, and the upper pin holes and the lower pin holes are arranged in a one-to-one correspondence manner; and a positioning pin used for being in inserting fit with each upper pin hole can be detachably fixed in each lower pin hole.
By adopting the technical scheme, the positioning pin is in plug-in fit with the upper pin hole, so that the bottom plate and the pressing plate are accurately positioned, the pressing plate can be accurately aligned with the bottom plate, and the positioning precision of a workpiece is ensured.
The invention is further configured to: each lower pin hole is respectively arranged at two opposite sides of the bottom plate, and each upper pin hole is respectively arranged at two opposite sides of the pressing plate; and positioning chamfers are arranged at the two opposite side corners on the bottom plate and the two opposite side corners on the pressing plate.
By adopting the technical scheme, the lower pin holes and the upper pin holes are arranged on two opposite sides of the jig main body, and when the pressing plate rotates 90 degrees relative to the bottom plate, the positioning pins on the bottom plate cannot align with the upper pin holes; meanwhile, when the covering angle of the pressing plate relative to the bottom plate is not opposite, the positioning chamfers on the pressing plate and the bottom plate cannot be aligned, namely the covering angle of the pressing plate is wrong. Through this kind of mode, ensure that the staff can correctly cover the clamp plate that closes on the bottom plate, not only can improve the convenience of staff's operation, can also indirectly improve the positioning accuracy of work piece.
In conclusion, the invention has the following beneficial effects:
1. The workpiece is fixed by the aid of the jig main body on the adjustable base, and the upper surface of the adjustable base is obliquely arranged, so that at least the design central line of an inclined hole to be machined on the workpiece is in a vertical state, the machining requirements of a common three-axis machining center are met, the machining difficulty of the inclined hole on the workpiece is reduced, the machining quality of the inclined hole on the workpiece is indirectly improved, and the machining efficiency of the inclined hole is greatly improved;
2. The fixture main body is fixed by the permanent magnetic chuck, and the fixture main body is effectively limited by matching with each limiting block, so that the positioning precision of a workpiece is ensured, and the convenience of operation is greatly improved;
3. Through rotating the permanent magnetic chuck and setting up on the base, fixed permanent magnetic chuck can be dismantled to cooperation locking subassembly, when guaranteeing work piece stability, can realize tool main part inclination's regulation indirectly to not only can further improve the positioning accuracy of work piece, can also effectively enlarge the application scope of this tool for inclined hole processing, and strengthen its practicality and commonality.
Detailed Description
the present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 2, a jig for processing inclined holes includes an adjustable base 4 and a jig main body 5 disposed on the adjustable base 4. In actual work, the adjustable base 4 is fixed on a workbench of a machining center, and a workpiece to be machined is fixed in the jig main body 5.
Referring to fig. 2-3, the adjustable base 4 includes a base 41, and the base 41 can be horizontally fixed on a worktable of a machining center. The upper side of the base 41 is provided with a permanent magnetic chuck 42, the whole permanent magnetic chuck 42 is of a square block structure, and the upper surface is uniformly formed with anti-skid grains 421; for installation permanent magnetism sucking disc 42, base 41 upper surface one side edge rotates and is provided with pivot 6, and base 41 forms to rotate through pivot 6 and permanent magnetism sucking disc 42 bottom one side edge and is connected to make permanent magnetism sucking disc 42 overturn from top to bottom around pivot 6, realize permanent magnetism sucking disc 42 inclination's regulation. A support shaft is further fixed at one side of the bottom of the permanent magnetic chuck 42 away from the rotating shaft 6, and the support shaft and the rotating shaft 6 are arranged in parallel; when the permanent magnetic chuck 42 is turned to the horizontal state, the support shaft can effectively support one side of the permanent magnetic chuck 42 away from the rotating shaft 6, and the stability of the permanent magnetic chuck 42 is ensured. Meanwhile, the adjustable base 4 is also provided with a locking assembly 7 for detachably fixing the permanent magnetic chuck 42. In actual operation, when the permanent magnetic chuck 42 is in a fixed state, the jig main body 5 can be placed on the permanent magnetic chuck 42; when the permanent magnetic chuck 42 is magnetized, the permanent magnetic chuck 42 can sufficiently fix the jig main body 5, thereby effectively ensuring the stability of the workpiece; the permanent magnetic chuck 42 constitutes a fixing member for detachably fixing the jig main body 5 in this embodiment.
As shown in fig. 3, locking assemblies 7 may be provided in sets on opposite sides of adjustable base 4. The locking assembly 7 comprises a connecting rod 71, one end of the connecting rod 71 is hinged with the base 41, and an arc-shaped groove 711 horizontally penetrates through one side of the connecting rod 71, which is far away from the hinged point of the connecting rod and the base 41; a locking screw 72 is horizontally arranged in the arc-shaped groove 711, and the end part of the locking screw 72 is screwed in the permanent magnetic chuck 42. When the locking screw 72 is tightened, the head of the locking screw 72 abuts against the connecting rod 71, thereby indirectly achieving the fixation of the permanent magnetic chuck 42 on the base 41.
Referring to fig. 3, the jig main body 5 may have a rectangular block structure as a whole; in order to ensure the positioning precision of the jig main body 5 on the adjustable base 4, a limiting block 8 is also arranged on the upper side of the adjustable base 4; the limiting blocks 8 can be fixed on the side walls of the permanent magnetic chucks 42 through bolts, and two limiting blocks 8 can be respectively arranged on two adjacent side walls of the permanent magnetic chucks 42; and, two stopper 8 on the same lateral wall of permanent magnetism sucking disc 42 can be along the length direction symmetry setting of this lateral wall. The upper part of each limit block 8 extends out of the upper surface of the permanent magnetic chuck 42; after the jig main body 5 is placed on the permanent magnetic chuck 42, before the permanent magnetic chuck 42 is magnetized, the worker can move the jig main body 5, so that two adjacent side walls of the jig main body 5 respectively abut against each group of limiting blocks 8, and the jig main body 5 can be accurately positioned on the adjustable base 4.
Referring to fig. 4-5, the jig main body 5 includes a bottom plate 51 for abutting against the upper surface of the permanent magnetic chuck 42, and a side of the bottom plate 51 away from the permanent magnetic chuck 42 is provided with an embedding groove 511, and the embedding groove 511 is mainly used for embedding a workpiece to be processed; in order to improve the processing efficiency, a plurality of embedding grooves 511 can be uniformly arranged on the bottom plate 51; meanwhile, the embedding slot 511 can be set to different sizes and specifications to meet the processing requirements of workpieces with different specifications. The bottom plate 51 is also vertically provided with lower pin holes 512 in a penetrating manner, and two or three or more lower pin holes 512 can be respectively arranged on two opposite sides of the bottom plate 51; the positioning pins 9 are inserted and fixed in the lower pin holes 512 in a one-to-one correspondence manner. The bottom plate 51 is further provided with chip removal holes 513 on one side for abutting against the permanent magnetic chuck 42, the chip removal holes 513 are arranged in one-to-one correspondence with the embedding grooves 511, and each chip removal hole 513 is communicated with the corresponding embedding groove 511. Moreover, the bottom plate 51 has positioning chamfers 10 formed at two opposite corners thereof.
the fixture main body 5 further includes a pressing plate 52 covering one side of the bottom plate 51 away from the permanent magnetic chuck 42, a through hole 521 is vertically formed in the pressing plate 52 in a penetrating manner, and the through hole 521 and the embedding groove 511 are arranged in a one-to-one correspondence manner. The pressing plate 52 is also vertically provided with upper pin holes 522 in a penetrating way, and the upper pin holes 522 are arranged in one-to-one correspondence with the lower pin holes 512 on the bottom plate 51; when the pressing plate 52 is pressed against the bottom plate 51, each upper pin hole 522 can be directly opposite to the corresponding lower pin hole 512. Meanwhile, a plurality of countersunk bolt holes 523 are uniformly formed in the pressure plate 52; when the pressing plate 52 covers the bottom plate 51, fastening screws are correspondingly arranged in the countersunk bolt holes 523 one by one; the pressure plate 52 can be sufficiently fixed to the base plate 51 by means of fastening screws. Positioning chamfers 10 are also formed at two opposite corners of the pressing plate 52; when the pressing plate 52 is correctly covered on the bottom plate 51, the positioning chamfers 10 on the bottom plate 51 and the pressing plate 52 are exactly aligned.
In actual work, the bottom of the workpiece is embedded in the embedding groove 511; when the pressing plate 52 is covered on the bottom plate 51, the lower side of the pressing plate 52 is abutted against the shoulder 3 on the outer side wall of the workpiece, and the workpiece is abutted in the embedding groove 511, so that the workpiece is fixed. In this process, the respective positioning pins 9 on the bottom plate 51 are respectively inserted into the respective upper pin holes 522 on the pressure plate 52; the lower pin hole 512, the positioning pin 9 and the upper pin hole 522 are matched together, so that the bottom plate 51 and the pressure plate 52 can be effectively positioned.
The working principle of the embodiment is as follows: in actual work, a worker embeds each workpiece into each embedding groove 511 on the bottom plate 51, and then adjusts the pressing plate 52, so that the positioning chamfers 10 on the pressing plate 52 are aligned with the positioning chamfers 10 on the bottom plate 51; subsequently, the pressing plate 52 is covered on the bottom plate 51, and the positioning pins 9 on the bottom plate 51 are respectively inserted into the corresponding upper pin holes 522; next, the pressing plate 52 is fixed to the base plate 51 with the fastening screws; at this time, the pressing plate 52 will press each workpiece tightly against the corresponding embedding slot 511, so as to achieve effective fixation of each workpiece. Then, the jig main body 5 fixed with the workpiece is placed on the permanent magnetic chuck 42, and the two adjacent side walls on the jig main body 5 are respectively abutted against the limiting blocks 8; next, the permanent magnet chuck 42 is magnetized so that the jig main body 5 is completely fixed to the permanent magnet chuck 42.
After the operation is completed, the worker can loosen the locking screw 72, then rotate the permanent magnetic chuck 42 until the designed central line of the inclined hole 2 to be processed on the workpiece becomes a vertical state, and immediately tighten the locking screw 72. And (4) until the positioning of the workpiece is completely finished, the worker can start the three-axis machining center to finish the machining of one inclined hole 2 on the workpiece by means of the three-axis machining center.
after the first inclined hole 2 on the workpiece is processed, the worker can cancel the magnetization of the permanent magnetic chuck 42 and re-magnetize the permanent magnetic chuck 42 after rotating the jig main body 5 by 180 degrees, so that the jig main body 5 is fixed again. Subsequently, the machining of the upper and lower inclined holes 2 of the workpiece can be started. Through this kind of mode, reduce the processing degree of difficulty of 2 inclined holes on the work piece, indirectly improve 2 processingquality of inclined holes on the work piece to greatly improve 2 machining efficiency of inclined holes.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.