CN107052405B - A kind of overturning drilling clamp - Google Patents

A kind of overturning drilling clamp Download PDF

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Publication number
CN107052405B
CN107052405B CN201710372477.6A CN201710372477A CN107052405B CN 107052405 B CN107052405 B CN 107052405B CN 201710372477 A CN201710372477 A CN 201710372477A CN 107052405 B CN107052405 B CN 107052405B
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China
Prior art keywords
disk
rotating disc
positioning
hole
positioning pin
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CN107052405A (en
Inventor
王连宏
吴鑫
张雪冬
郭巨寿
宋敏
景红
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National No616 Plant
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National No616 Plant
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B47/00Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/28Drill jigs for workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q16/00Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02Indexing equipment
    • B23Q16/04Indexing equipment having intermediate members, e.g. pawls, for locking the relatively movable parts in the indexed position
    • B23Q16/06Rotary indexing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2247/00Details of drilling jigs
    • B23B2247/12Drilling jigs with means to affix the jig to the workpiece

Abstract

The invention discloses a kind of high-precision high-efficiencies to overturn drilling clamp, comprising: rotary support, as main body rack component, for fixing and installing other assemblies with process equipment workbench;End face positioning limit plate is mounted on rotating disc by screw, cylindrical positioning pins are mounted on the center of rotating disc, diamond positioning pin is arranged on rotating disc by preset required distance, end face positioning pin is distributed in rotating disc left side, replaceable drill bushing is according to the structure distribution in processing hole in rotating disc right side, two replaceable drill bushings are arranged up and down, it holds down assembly and is mounted on the end of cylindrical positioning pins, rotating disc is positioned by key and screws clamp is connect with the disk that connects with index hole, with index hole connect disk and rotary support connect disk connection, compression handle is mounted on the right side of rotary support, it is connected with the retaining mechanism of rotary support inner cavity, by rotatably compressing handle, keep the positioning pin of retaining mechanism flexible, realize the rotation for connecing disk with index hole, complete the processing of index hole on circumference.

Description

A kind of overturning drilling clamp
Technical field
The invention belongs to technical fields of mechanical processing, are related to a kind of overturning drilling clamp.
Background technique
Governor be certain model high-power diesel engine automatic adjustment oil mass mechanism, main function:
(1) it is limitation diesel engine maximum speed, prevents " driving " and make the parts damages such as bearing shell is burnt or connecting rod fractures Bad failure;
(2) guarantee diesel engine stable operation when being low idle.
Wherein speed regulation body is the key component of speed adjusting gear again, belongs to aluminium alloy thin-walled housing component, and precision is high, and deformation is big, The lever mounting hole for especially adjusting the speed body brings certain difficulty to processing.
The lever mounting hole design requirement of speed regulation body is shown in Fig. 1, and aperture is φ 10+ 00.03mm, surface roughness Ra1.6um, belong in separated big L/D ratio deep hole, and concentricity when requiring two parts aperture maximum solid disconnected≤ 0.015mm, whole aperture center line to bearing hole theoretical center benchmark A verticality≤0.15mm of workpiece, to datum plane C's The depth of parallelism≤0.10mm, the outside both ends in hole have separately designed threaded hole M12 × 1.5-6H, stepped hole φ 12.5mm and φ Verticality 0.05mm of the end face of 22mm, stepped hole φ 22 to 10 aperture center line of φ, surface roughness Ra 1.6um.
Original processing scheme:
It is all by 180 ° of completion both ends of revolution using equipment rotary table function using built-up jig clamping workpiece The processing in hole.
The major technique defect of original processing scheme:
(1) it is the concentricity for fully relying on the work table rotation precision of equipment to guarantee both ends of the hole, is produced when workbench rotates When raw turn error, the unstability of processing precision of products is caused, rough estimates concentricity is overproof up to 50%;
It (2) is that built-up jig is rigidly poor, workpiece process is deformed, and easily causes the 10 hole center φ to bearing hole base The verticality of true centric line is overproof;
It (3) is to be unable to satisfy batch production requirements.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved by the present invention is the drilling clamp that angle overturning positions can be determined by developing a kind of 180 °, reach Efficiently, the processing in high-precision hole, meets batch production requirements;It is fixed for 0 °~360 ° rotations that extension invention on disk is connect in indexing simultaneously The processing of any angle hole on circumferencial direction is realized in position.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of high-precision high-efficiencies to overturn drilling clamp comprising: band indexing Hole connects that disk 1, compression handle 2, replaceable drill bushing 3, cylindrical positioning pins 4, hold down assembly 5, end face positioning pin 6, diamond positioning pin 7, end face positioning limit plate 8, rotating disc 9, rotary support 10;Wherein, rotary support 10 be used as main body rack component, for add Connecing disk 1, compression handle 2, replaceable drill bushing 3, cylindrical positioning pins 4, compressing with index hole is fixed and installed to construction equipment workbench Component 5, end face positioning pin 6, diamond positioning pin 7, rotating disc 9;End face positioning limit plate 8 is mounted on rotating disc 9 by screw, For supporting workpiece end face positioning;Cylindrical positioning pins 4 are mounted on the center of rotating disc 9, position for workpiece bearing hole;Diamond shape is fixed Position pin 7 is arranged on rotating disc 9 by preset required distance, positions for workpiece pinhole;End face positioning pin 6 is distributed in rotation 9 left side of disk, the fixation for rotating disc 9 and rotary support 10;Replaceable drill bushing 3 is being rotated according to the structure distribution in processing hole 9 right side of disk, two replaceable about 3 drill bushings are arranged, for the positioning of process tool, are realized and are rotated the efficient, high of 180 ° of holes Finishing;Hold down assembly 5 ends for being mounted on cylindrical positioning pins 4, the clamping for workpiece;Rotating disc 9 is positioned by key and spiral shell Nail clip is tightly connect with the disk 1 that connects with index hole;The disk 1 that connects with index hole is connect with the disk that connects of rotary support 10, and compression handle 2 is pacified Mounted in the right side of rotary support 10, it is connected with the retaining mechanism of 10 inner cavity of rotary support, by rotatably compressing handle 2, makes to lock The positioning pin of tight mechanism is flexible, realizes the rotation for connecing disk 1 with index hole, completes the processing of index hole on circumference.
Wherein, the rotary support is axle horizontal type locating pin type device, installs the rotary support base for connecing disk 1 with index hole It is 0.03~0.05mm of tolerance value and perpendicular between two parallel planes of rotary support baseplane A that directrix plane B, which is located at distance,.
Wherein, on the rotary support, install rotating disc 9 mesoporous center line be located at distance be tolerance value 0.03~ 0.05mm and perpendicular between two parallel planes of rotary support datum plane B.
Wherein, 10 top end surface of rotary support is set as to knife basal plane, and being located at distance to knife basal plane is tolerance value It 0.03~0.05mm and is parallel between two parallel planes of rotary support baseplane A.
Wherein, the center for connecing disk 1 with index hole is equipped with a mesoporous with keyway, for the connection locking with fixture Mechanism, rotating disc 9 main shaft fix;Four positioning splines of distribution on 1 end face of disk are connect with index hole.
Wherein, the center line of the positioning spline is located at distance and is 0.01~0.03mm of tolerance value and installs perpendicular to main shaft Between two parallel planes of benchmark centerline hole.
Wherein, the end face for connecing disk 1 with index hole is equipped with the oil lubricating slot intersected.
Wherein, cylindrical positioning pins support, diamond positioning pin support, replaceable drill bushing support, end are set on the rotating disc 9 Face positioning limit board support;Cylindrical positioning pins support is connected with diamond positioning pin support using reinforcing rib;The main shaft of rotating disc is pacified It is 0.01~0.02mm of tolerance value and perpendicular between two parallel planes of datum end face that the center line for filling hole, which is located at distance,;Two The center line of replaceable drill bushing bearing hole is located at distance and is 0.02~0.03mm of tolerance value and is parallel to the two parallel of datum end face Between plane, the center line of a replaceable drill bushing bearing hole be located at diameter be 0.008~φ of tolerance value φ 0.01mm and with it is another Between the coaxial two cylindrical surface of the replaceable drill bushing support centerline hole in one end;The cylindrical positioning pins bearing hole and diamond shape of rotating disc are fixed The center line in position pin bearing hole be located at distance be 0.01~0.02mm of tolerance value and perpendicular to two parallel planes of datum end face it Between.
Wherein, the retaining mechanism include compression handle 2, connect disk positioning pin 2., spring 3., sleeve 4., gear 5., connect disk 2. positioning pin belongs to screw structure, with spring 3., sleeve 4., gear be 5. mounted on rotary support inner cavity, when compression handle 2 revolve When turning, make to connect disk positioning pin by screw mechanism and 2. stretch, spring 3. under the action of, realize the locating clip of different angle Tightly.
Wherein, described to connect disk positioning pin 2. one end is screw-rod structure, one end is locating pin structure, mid diameter and locking machine The positioning of structure lumen orifice;Make gear 5. radial rotating by the rotation of compression handle 2,5. gear drives the spiral shell for connecing disk positioning pin 2. one end Rod structure completes axial movement, and realization connects disk positioning pin 2. Telescopic, and guarantee is disengaged before connecing disc spins, positioned after rotation;Set 4. 2. cylinder is used for branch tray positioning pin, one end is designed as I.S.S structure, guarantees plug screw fastening, facilitates oil injecting lubricating; Left part is provided with a groove profile, it is ensured that gear 5. with connect disk positioning pin and 2. connect.
(3) beneficial effect
High-precision high-efficiency provided by above-mentioned technical proposal overturns drilling clamp, and rigidity is stronger, and easy to use, clamping workpiece is fast Speed, positioning accuracy is high, and the deformation of process workpiece is small, not only ensure that both ends high-precision porous passing rate of processing 100%, produces Efficiency improves 10% on the basis of original, and reduces the former fixed assets utilization rate 20% for using numerical control device, substantially Ground reduces manufacturing cost.
Detailed description of the invention
Fig. 1 is speed regulation body lever mounting hole design diagram;A figure is speed regulation body lever mounting hole schematic diagram, and b figure is Adjust the speed body lever mounting hole cross-sectional view;
Fig. 2 is drilling clamp of embodiment of the present invention structural schematic diagram;
Fig. 3 is the machining sketch chart that hole drilling is carried out using drilling clamp of the embodiment of the present invention;
Fig. 4 is the structural schematic diagram of rotary support of the embodiment of the present invention, wherein a figure is main view, and b figure is side view;
Fig. 5 connects disk schematic diagram with index dial for the embodiment of the present invention;A figure is that 180 ° of indexing connect disk, and b figure is that can be achieved to appoint The indexing of meaning angle positioning connects disk;
Fig. 6 is rotating disc of embodiment of the present invention schematic diagram;Wherein, a figure is main view, and b figure is side view;
Fig. 7 is retaining mechanism of embodiment of the present invention cross-sectional view;A figure is perspective view, and b figure is cross-sectional view;
Fig. 8 is that the embodiment of the present invention connects disk positioning pin schematic diagram;
Fig. 9 is sleeve of embodiment of the present invention schematic diagram;
In figure, 1- connects disk with index hole;2- compression handle;The replaceable drill bushing of 3-;4- cylindrical positioning pins;5- compression group Part;The end face 6- positioning pin;7- diamond positioning pin;The end face 8- positioning limit plate;9- rotating disc;10- rotary support;1. workpiece;② Connect disk positioning pin;3. spring;4. sleeve;5. gear.
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to of the invention Specific embodiment is described in further detail.
1, General layout Plan and principle
(1) design principle
In conjunction with speed regulation body design feature, the positioning datum that part processing needs is determined, further according to the precision of positioning datum It is required that design meets the fixture of requirement on machining accuracy;
Design focal point is: can satisfy special angle rotational positioning using the solution of this fixture, and guarantees wanting for machining accuracy It asks.
The invention has the characteristics that improving rotating mechanism, design, which is realized, determines angle rotation and positioning and locking function, to realize Part determines the requirement of angle rotation processing, while can process the angle for needing to overturn according to part, on the rotating pan supplementary processing Index hole or replacement, which have the indexing of specific rotation angle index hole to connect disk, fast and accurately to be completed part on conventional equipment and exist The processing that angle is arbitrarily rotated in one plane, is substantially improved processing efficiency.
(2) global schema is designed
As shown in Fig. 2, the fixture includes the disk 1 of connecing with index hole, compression handle 2, replaceable drill bushing 3, cylindrical positioning pins 4, hold down assembly 5, end face positioning pin 6, diamond positioning pin 7, end face positioning limit plate 8, rotating disc 9, rotary support 10.Wherein, Rotary support 10 is used as main body rack component, connects disk 1, compression with index hole for fixing and installing with process equipment workbench Handle 2, replaceable drill bushing 3, cylindrical positioning pins 4, hold down assembly 5, end face positioning pin 6, diamond positioning pin 7, rotating disc 9;End face Positioning limit plate 8 is mounted on rotating disc 9 by screw, for supporting workpiece end face positioning;Cylindrical positioning pins 4 are mounted on rotation The center of disk 9 is positioned for workpiece bearing hole;Diamond positioning pin 7 is arranged on rotating disc 9 by preset required distance, is used for The positioning of workpiece pinhole;End face positioning pin 6 is distributed in 9 left side of rotating disc, the fixation for rotating disc 9 and rotary support 10; Replaceable drill bushing 3 is according to the structure distribution in processing hole in 9 right side of rotating disc, and two replaceable about 3 drill bushings are arranged, for adding Efficient, the high finishing in 180 ° of holes of rotation is realized in the positioning of work cutter;Hold down assembly 5 ends for being mounted on cylindrical positioning pins 4, Clamping for workpiece;Rotating disc 9 is positioned by key and screws clamp is connect with the disk 1 that connects with index hole;Connecing with index hole Disk 1 is connect with the disk that connects of rotary support 10, and compression handle 2 is mounted on the right side of rotary support 10, with 10 inner cavity of rotary support Retaining mechanism is connected, and by rotatably compressing handle 2, keeps the positioning pin of retaining mechanism flexible, realizes and connect disk 1 with index hole Rotation, complete circumference on index hole processing.
(3) working principle
See that Fig. 3 is compressed with pressing plate, then processed after speed regulation body is by two holes and end face positioning.
When the drill bushing of fixture is in plumbness, by quick-replaceable drill bushing can realize the hole system of workpiece one end brill, Expand, cut with scissors, screw thread processed;Rotatably compress handle and transfer panel and fixation revolved by retaining mechanism, complete the brill of another stomidium system, expansion, hinge, The processing such as screw thread processed, to realize workpiece high accurate hole drilling.
2, rotary support design scheme
Rotary support is main support body, and as shown in Figure 4, which is designed as the axle horizontal type locating pin type of versatility Device, it mainly undertakes body member, connects diskware (including connecing disk 1 with index hole), mainshaft mechanism (connection retaining mechanism, rotation Disk 9 connects disk 1 etc. with index hole, plays rotation transmitting), the assembly of retaining mechanism and compression handle etc., formation rotary support Component.
Since structure is complicated for the part, cast member is used.In order to guarantee the assembly precision requirement of device, installation band index hole The rotary support datum plane B for connecing disk 1 to must be positioned at distance be 0.03~0.05mm of tolerance value and perpendicular to rotary support bottom Between two parallel planes of plane A;Install rotating disc 9 mesoporous center line must be positioned at distance be tolerance value 0.03~ 0.05mm and perpendicular between two parallel planes of rotary support datum plane B;In order to guarantee the accurate of workpiece hole working depth Property and consistency, 10 top end surface of rotary support is designed as to knife basal plane, and to knife basal plane must be positioned at distance be tolerance value It 0.03~0.05mm and is parallel between two parallel planes of rotary support baseplane A.
3, disk design scheme is connect with index hole
The disk 1 that connects with index hole belongs to the middle transition part that rotating disc 9 is connect with rotary support 10, is turnover device processing The key component of angle needed for workpiece hole, as shown in a figure in Fig. 5.The key position of design is the dowel hole for rotating angle, when setting , it can be achieved that the processing of the radial multiple angle holes of workpiece when being calculated as multiple dowel holes, therefore the part has versatility and suitability, As shown in b figure in Fig. 5.The center for connecing disk 1 with index hole is equipped with a mesoporous with keyway, locks machine for the connection with fixture Structure, rotating disc 9 main shaft fix;Four positioning splines are distributed on end face, for guaranteeing that the assembly precision of drill jig rotating disc is wanted It asks, it is 0.01~0.03mm of tolerance value and perpendicular to main shaft reference for installation hole center that the center line of positioning spline, which must be positioned at distance, Between two parallel planes of line;In order to reach, index dial rotation is quick, positions and accurately can devise the machine oil of intersection on end face Lubrication groove;In order to improve the positioning accuracy for connecing disk, ladder end face E, F is devised, bottom end face K must be positioned at distance as tolerance value 0.01~0.03mm and perpendicular between two parallel planes of main shaft reference for installation centerline hole.
4, rotating disc design scheme
The main function of rotating disc 9 is one end connection indexing means, one end bearing workpiece, from workpiece bearing known to Fig. 1 analysis Hole is deeper apart from positioning end face, and the bearing hole locating device of workpiece needs to design certain altitude, in order to improve the use longevity of device Life, rotating disc are designed as the cylinder location structure of changeable type and the location structure of end face limit, see Fig. 6.Rotating disc is mainly special Sign is fixed by cylindrical positioning pins support, diamond positioning pin support, replaceable drill bushing support, end face according to Fig. 2 General layout Plan Position limit board support composition;Consider that rotation dish structure is complex, admittedly cast member is used, while in order to reinforce rotating disc rigidity, Cylindrical positioning pins support is connected with diamond positioning pin support using reinforcing rib;In order to guarantee that rotating disc connect with turnover device determines Heart precision, it is 0.01~0.02mm of tolerance value and perpendicular to benchmark that the center line of the spindle mounting hole of rotating disc, which must be positioned at distance, Between two parallel planes of end face;In order to guarantee the required precision in workpieces processing hole, the center of two replaceable drill bushing bearing holes Line must be positioned at distance and be 0.02~0.03mm of tolerance value and be parallel between two parallel planes of datum end face that one replaceable The center line of drill bushing bearing hole must be positioned at diameter be 0.008~φ of tolerance value φ 0.01mm and with the replaceable drill bushing branch of the other end Between the coaxial two cylindrical surface of bore center line;In order to improve workpiece positioning accuracy, the cylindrical positioning pins bearing hole of rotating disc and It is 0.01~0.02mm of tolerance value and perpendicular to the two of datum end face that the center line of diamond positioning pin bearing hole, which must be positioned at distance, Between parallel plane;In addition, being conducive to reduce clamping workpiece using the compression mode for designing screw rod from cylindrical positioning pins mesoporous Deformation.
5, the retaining mechanism design scheme with compression handle
From Fig. 2 analysis it is found that the retaining mechanism with compression handle 2 mainly by compression handle 2, connect disk positioning pin 2., spring 3., sleeve 4., the gear composition such as 5., main function is to realize drill jig with the rotation for connecing disk and carrying out different angle by screw mechanism Turn, sees Fig. 7.It connects disk positioning pin and 2. belongs to screw structure, be mounted on rotary support inner cavity with components such as springs, work as compression handle When 2 rotation, make to connect disk positioning pin by screw mechanism and 2. stretch, spring 3. under the action of, realize determining for different angle Position clamps.
(1) disk positioning pin is connect using quality carbon tool steel, design scheme is shown in Fig. 8, heat treatment hardness reaches 50~ 55HRC;Connecing disk positioning pin, 2. one end is screw-rod structure, and one end is locating pin structure, and mid diameter and retaining mechanism lumen orifice are fixed Position;Whole design scheme is to make gear 5. radial rotating by the rotation of compression handle 2, and 5. gear drives connects disk positioning pin 2. one end Screw-rod structure complete axial movement, realization connects disk positioning pin 2. Telescopic, and guarantee disengages before connecing disc spins, is fixed after rotation Position;In order to guarantee to connect disk positioning pin 2. transmission accuracy, the tooth Shape Design of screw-rod structure is modulus 1.5, tooth pitch 4.712mm, pressure 20 ° of angle, and the positioning pin of the other end with connect the reference surface A of disk positioning pin 2. it is any measurement plane in radial run-out amount It is not greater than 0.002~0.005mm.
(2) sleeve 4. main function be branch tray positioning pin 2., design scheme be using low carbon-structural steel, design scheme See Fig. 9, main feature one end is designed as I.S.S structure, guarantees plug screw fastening, facilitates oil injecting lubricating;Left part is provided with a slot Type, it is ensured that gear 5. with connect disk positioning pin and 2. connect;Matching surface reaches 50~55HRC by carburizing, quenching heat treatment hardness, When rotating a circle with the outer surface of rotary support cooperation around the cooperation inner surface center line of installation branch tray positioning pin 2., Radial run-out amount in any measurement plane is not greater than 0.002~0.005mm.
As can be seen from the above technical solutions, the present invention has following distinguishing feature:
(1) fixture uses the drill bushing structure at both ends, and the requirement of concentricity and positional stability are guarantee workpiece two The key of stomidium machining accuracy.
(2) the versatility axle horizontal type locating pin type indexing device and retaining mechanism for using 180 °, it is interrupted to realize both ends The efficient drilling of high accurate hole, achieved the purpose that hole system efficiently, high finishing.The design of its Integral turnover device is for speed regulation Body batch production processing has certain advance.
(3) disk that connects with index hole is designed as porous indexing, the processing of porous series on workpiece circumference can be promoted the use of, Improve the versatility of turnover device ontology.
It is verified by production, drilling clamp rigidity is stronger, and easy to use, clamping workpiece is rapid, and positioning accuracy is high, processing The deformation of process workpiece is small, not only ensure that both ends high-precision porous passing rate of processing 100%, and production efficiency mentions on the basis of original It is high by 10%, and the former fixed assets utilization rate 20% for using numerical control device is reduced, manufacturing cost has been greatly reduced.
The invention has been applied to the batch production of all high-power diesel engine speed regulation body homogeneous structures, from manufacturing cost core It calculates and saves expense year up to more than 20 ten thousand yuan.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations Also it should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of overturning drilling clamp characterized by comprising connect disk (1), compression handle (2), replaceable brill with index hole Set (3) cylindrical positioning pins (4), holds down assembly (5), end face positioning pin (6), diamond positioning pin (7), end face positioning limit plate (8), rotating disc (9), rotary support (10);Wherein, rotary support (10) is used as main body rack component, is used for and process equipment work Connecing disk (1), compression handle (2), replaceable drill bushing (3), cylindrical positioning pins (4), compressing with index hole is fixed and installed as platform Component (5), end face positioning pin (6), diamond positioning pin (7), rotating disc (9);End face positioning limit plate (8) is mounted on by screw On rotating disc (9), for supporting workpiece end face positioning;Cylindrical positioning pins (4) are mounted on the center of rotating disc (9), are used for workpiece Bearing hole positioning;Diamond positioning pin (7) is arranged on rotating disc (9) by preset required distance, positions for workpiece pinhole; End face positioning pin (6) is distributed in rotating disc (9) left side, is used for the fixation of rotating disc (9) and rotary support (10);Replaceable brill (3) are covered according to the structure distribution in processing hole in rotating disc (9) right side, and two replaceable drill bushings (3) are arranged up and down, for processing Efficient, the high finishing in 180 ° of holes of rotation is realized in the positioning of cutter;Hold down assembly (5) be mounted on the end of cylindrical positioning pins (4) Portion, the clamping for workpiece;Rotating disc (9) is positioned by key and screws clamp is connect with the disk (1) that connects with index hole;Band indexing The disk (1) that connects in hole is connect with the disk that connects of rotary support (10), and compression handle (2) is mounted on the right side of rotary support (10), with rotation The retaining mechanism for turning support (10) inner cavity is connected, and by rotatably compressing handle (2), keeps the positioning pin of retaining mechanism flexible, It realizes the rotation for connecing disk (1) with index hole, completes the processing of index hole on circumference.
2. overturning drilling clamp as described in claim 1, which is characterized in that the rotary support is axle horizontal type locating pin type dress It sets, the rotary support datum plane B that connects disk (1) of the installation with index hole is located at apart from for 0.03~0.05mm of tolerance value and vertically Between two parallel planes of rotary support baseplane A.
3. overturning drilling clamp as claimed in claim 2, which is characterized in that on the rotary support, installation rotating disc (9) It is 0.03~0.05mm of tolerance value and perpendicular to two parallel planes of rotary support datum plane B that the center line of mesoporous, which is located at distance, Between.
4. overturning drilling clamp as claimed in claim 3, which is characterized in that rotary support (10) top end surface is set as pair Knife basal plane, and distance is located to knife basal plane and is 0.03~0.05mm of tolerance value and is parallel to the two parallel of rotary support baseplane A Between plane.
5. overturning drilling clamp as claimed in claim 4, which is characterized in that the center for connecing disk (1) with index hole is set There is a mesoporous with keyway, the main shaft for connection retaining mechanism, rotating disc (9) with fixture is fixed;Disk is connect with index hole (1) four positioning splines are distributed on end face.
6. overturning drilling clamp as claimed in claim 5, which is characterized in that the center line of the positioning spline is positioned at distance 0.01~0.03mm of tolerance value and perpendicular between two parallel planes of main shaft reference for installation centerline hole.
7. overturning drilling clamp as claimed in claim 6, which is characterized in that on the end face for connecing disk (1) with index hole Oil lubricating slot equipped with intersection.
8. overturning drilling clamp as claimed in claim 5, which is characterized in that cylindrical positioning pins are arranged on the rotating disc (9) Support, diamond positioning pin support, replaceable drill bushing support, end face positioning limit board support;Cylindrical positioning pins support and diamond shape are fixed Position pin bearing is connected using reinforcing rib;It is 0.01~0.02mm of tolerance value that the center line of the spindle mounting hole of rotating disc, which is located at distance, And perpendicular between two parallel planes of datum end face;It is tolerance value that the center line of two replaceable drill bushing bearing holes, which is located at distance, It 0.02~0.03mm and is parallel between two parallel planes of datum end face, the center line of a replaceable drill bushing bearing hole is located at Diameter is tolerance valueAnd the coaxial two cylindrical surface with the replaceable drill bushing support centerline hole of the other end Between;The center line of the cylindrical positioning pins bearing hole of rotating disc and diamond positioning pin bearing hole be located at distance be tolerance value 0.01~ 0.02mm and perpendicular between two parallel planes of datum end face.
9. overturning drilling clamp as claimed in claim 8, which is characterized in that the retaining mechanism includes compression handle (2), connects Disk positioning pin (2.), spring (3.), sleeve (4.), gear (5.) connect disk positioning pin (2.) and belong to screw structure, with spring (3.), sleeve (4.), gear (5.) are mounted on rotary support inner cavity, when compression handle (2) rotation, make to connect by screw mechanism Disk positioning pin (2.) stretches, and under the action of spring (3.), realizes that the positioning of different angle clamps.
10. overturning drilling clamp as claimed in claim 9, which is characterized in that described disk positioning pin (2.) one end that connects is screw rod Structure, one end are locating pin structure, and mid diameter and retaining mechanism lumen orifice position;Make gear by compression handle (2) rotation (5.) radial rotating, the screw-rod structure that gear (5.) driving connects disk positioning pin (2.) one end complete axial movement, and it is fixed that realization connects disk Position pin (2.) Telescopic, guarantee are disengaged before connecing disc spins, are positioned after rotation;Sleeve (4.) is used for branch tray positioning pin (2.), one end is designed as I.S.S structure, guarantees plug screw fastening, facilitates oil injecting lubricating;Left part is provided with a groove profile, it is ensured that Gear (5.) is connect with disk positioning pin (2.) is connect.
CN201710372477.6A 2017-05-24 2017-05-24 A kind of overturning drilling clamp Active CN107052405B (en)

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CN108515213A (en) * 2018-04-09 2018-09-11 临沂万和精工机械有限公司 A kind of drill jig tool and its application method
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