CN205057610U - Utilize anchor clamps of triaxial machining center processing breech housing - Google Patents
Utilize anchor clamps of triaxial machining center processing breech housing Download PDFInfo
- Publication number
- CN205057610U CN205057610U CN201520852192.9U CN201520852192U CN205057610U CN 205057610 U CN205057610 U CN 205057610U CN 201520852192 U CN201520852192 U CN 201520852192U CN 205057610 U CN205057610 U CN 205057610U
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- China
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- breech housing
- push rod
- positioning seat
- breech
- support plate
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Abstract
The utility model provides an utilize anchor clamps of triaxial machining center processing breech housing, it includes 135 tail tops, left support plate, the fixed plate, the cylinder, the push rod, the key seat, reference pin, the positioning seat, the right branch fagging, 135 the dividing head, a pedestal, the head of push rod carries out assistance -localization real -time to the breech housing, the step face of push rod and the contact of the terminal surface A of breech housing, add and carry out the terminal surface location and press from both sides tightly the breech housing man -hour, reference pin inserts the rifle bolt pore pair breech housing of breech housing and fixes a position, the pole portion excircle of breech housing inserts in the hole of positioning seat, the positioning seat plays supporting role to the pole portion excircle of breech housing, the terminal surface B of breech housing contacts with the terminal surface of positioning seat, press from both sides tightly the breech housing with the push rod cooperation, left support plate and 135 tail tops meet, right branch fagging and 135 dividing heads meet, realize the rotation of anchor clamps. 9 original processes can be processed to clamping of work piece, reduce the clamping time, reduce the accumulative error that the benchmark transform brought, improve surface quality, effectively improve machining efficiency and production efficiency.
Description
Technical field
The utility model is a kind of clamp technology, especially uses in the heart in three axis machining.
Background technology
Along with the fast development of Numeric Control Technology, Multishaft processing center application is also more and more extensive.It can alleviate labor strength, raise labour productivity, the parts of original many employing old technologies, used equipment processing, nowadays also all gone up machining center, part breech housing as shown in Figure 1, part blank is precision castings, due to the vitals that it is firearms, coordinated with gunlock open and close to lock action, driven gunlock to seesaw, its processing precision direct influence is reliable and service life to the performance of rifle, upper bullet.
Original old technology arranges as follows: part is at thick, finish turning bar portion cylindrical 1, end face A2, end face B3 and bore bolt apertures 13, after spring eye 14, then following processing is carried out by requirement as shown in Figure 2,3: step 1, milling inclined-plane 4 and processing R3.5 ~ 4 size on vertical knee-type milling machine, ensure 50-0.3 and 45+0.340; Step 2, on vertical knee-type milling machine milling circular arc 5R5; Two procedures share a set of milling fixture a.Location and clamping area are as shown in Figure 2,3.
As shown in Figure 4,5, 6, step 3, rough mill helicla flute 6; Step 4, on profiler, rough mill helicoid 7; Step 5, on profiler finish-milling helicla flute 6; Step 6, on profiler finish-milling helicoid 7; Four procedures share a set of profiling attachment b.
As shown in Figure 7,8, step 7, pincers platform on manual refine helicla flute bottom surface 8 and chamfered edge 9;
As shown in Figure 9, step 8, on profiler, load onto copying milling fixture c milling groove 10, ensure 18+0.430,1.8+0.20 and 81.5+0.30 size;
As shown in Figure 10,11, step 9, profiler is loaded onto copying milling fixture d milling convex shoulder 11 ensure 24.50-0.52;
As shown in Figure 12,13, step 10, on single shaft profiler, load onto milling fixture e milling clout 12, ensure size 3.5+0.30 and 1.5 ± 0.15
Workpiece completes above-mentioned 10 operations needs four lathes, changes 5 sleeve clamps and just can reach.The shortcoming of old technology is: operation is many, and repeatedly repeated clamping tool setting produces accumulated error, affects the positioning precision of workpiece.
Therefore determine the work in-process heart (GX710) to be processed helicla flute as shown in Figure 1 and portion profile, because GX710 is three axis machining center, only can not meet processing needs by the clamping apparatus that three axis machining center is intrinsic.
Summary of the invention
The purpose of this utility model be to provide a kind of utilize three axis machining center to process breech housing processing technology and fixture, structure is simple, easy to operate, clamped one time, completes multiple tracks processing, to improve machine tooling ability and processing precision of products and quality.
The technical scheme that the utility model technical solution problem adopts is a kind of fixture utilizing three axis machining center to process breech housing, and it comprises 135 tail tops, left support plate, fixed head, cylinder, push rod, key seat, reference pins, positioning seat, right support plate, 135 dividing heads, base, fixed head, key seat, positioning seat is fixed on base, and cylinder is fixed on fixed head, push rod, reference pins is fixed on key seat, the tail end of push rod is connected with cylinder, the head of push rod makes the rhombus pin matched with the spring eye of breech housing, rhombus pin inserts in the spring eye of breech housing, auxiliary positioning is carried out to breech housing, the step surface of push rod contacts with the end face A of breech housing, add and man-hour end face positioning and clamping is carried out to breech housing, the bolt apertures that reference pins inserts breech housing positions breech housing, the bar portion cylindrical of breech housing inserts in the hole of positioning seat, the bar portion cylindrical of positioning seat to breech housing plays a supportive role, and the end face B of breech housing contacts with the end face of positioning seat, coordinates clamp breech housing with push rod, left support plate connects with 135 tail tops, right support plate connects with 135 dividing heads, and base two ends are connected with left support plate and right support plate respectively, realizes the rotation of fixture, 135 dividing heads, 135 tail tops fix three axis machining center on the table.
The utility model increases rotating shaft, be made up of 135 tail tops and 135 dividing heads, base two ends are utilized to be connected with left support plate and right support plate respectively, be connected with 135 tail tops by left support plate again, right support plate is connected with 135 dividing heads thus realizes the rotation of fixture, adopt cylinder to solve Workpiece clamping problem, Design Orientation seat, pedestal support the weight of workpiece simultaneously.Clamping workpiece is convenient in this design, and reliable clamping is easy and simple to handle.Employing plane and two pits is located, and one sells for push rod head is processed into rhombus, and to eliminate location, one side was the end face of push rod, and another pin is reference pins.All machined surfaces are all exposed in the machining area of machining center, make clamped one time, complete multiple tracks and be processed into possibility.
Also have pedestal, pedestal is fixed on positioning seat, and the bar portion cylindrical of pedestal clamping breech housing, plays supplemental support effect, to prevent the vibration of workpiece to the bar portion cylindrical of breech housing.
Pedestal comprises bottom plate, opening-closing plate, connecting rod, dish shape nut, pin, and it is hinged that pedestal and opening-closing plate pass through pin, and the other end is undertaken affixed by connecting rod and dish shape nut.
In Fixture assembly, pre-installation after machining center, detect respectively with Magnetic gauge stand and dial gauge to master bar I and master bar II, the linearity of master bar I and master bar II must within 0.015, and axiality must within 0.02; The center height of master bar I and master bar II must meet size 25 ± 0.01; Master bar II must meet size 57 ± 0.01 with the center height of plane on base; If disqualified upon inspection will each relevant fitting surface of reconditioning again, until qualified.By the numerical examination to fixture machining accuracy, determine the reliability of this fixture, thus ensure the machining accuracy of product.
The advantage of this fixture is: workpiece clamped one time, can process 9 original procedures, improve the working ability of machining center, reduces the clamping time, reduces the accumulated error that transformation of criterion brings, and improves surface quality, effectively improves working (machining) efficiency and production efficiency.Improve machine tooling ability and processing precision of products by this fixture, structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of workpiece to be processed breech housing
Fig. 2 be former add breech housing step 1 in technique, 2 machined surface schematic diagram
Fig. 3 is the side view of Fig. 2
Fig. 4 formerly to add in technique helicla flute 6, helicoid 7 machining sketch chart in breech housing step 3-6
Fig. 5 is the side view of Fig. 4
Fig. 6 is the partial enlarged drawing of Fig. 4
Fig. 7, Fig. 8 are for adding breech housing step 7 manual refine helicla flute bottom surface 8 and chamfered edge 9 on pincers platform in technique for former
As shown in Figure 9, step 8 loads onto copying milling fixture c milling groove 10 on profiler, ensures 18+0.430,1.8+0.20 and 81.5+0.30 size;
As shown in Figure 10,11, add breech housing step 9 in technique for former, profiler is loaded onto copying milling fixture d milling convex shoulder 11 and ensures 24.50-0.52;
As shown in Figure 12,13, for formerly adding breech housing step 10 in technique, loading onto milling fixture e milling clout 12 on single shaft profiler, size 3.5+0.30 and 1.5 ± 0.15 is ensured
Figure 14 is that the utility model is arranged on using state figure in the processing of three axis machining center
Figure 15 is the E direction view of Figure 14 and the structural representation of pedestal 49
Figure 16 is the schematic diagram of testing with inspection master bar I and master bar II pair of fixture
Figure 17 is the structural representation of positioning seat
Figure 18 is the structural representation of push rod
Wherein: 1 circular arc 6 helicla flute 7 helicoid 8 helicla flute bottom surface 9, cylindrical 2 end face A3 end face B4 inclined-plane 5, bar portion chamfered edge 10 groove 11 convex shoulder 12 clout 13 bolt apertures 14 spring eye 16 workbench 17, 135 tail tops 19, left support plate 25 fixed head 26, bushing 33 push rods 34 of cylinder 27 joint 29, key seat 36 base 37 positioning seat 39 right support plate 41, the end face of hole 124 positioning seat of step surface 123 positioning seat of 135 dividing head 44 reference pins 46 connecting rod 47 dish shape nut 48 opening-closing plate 49 pedestal 491 bottom plate 52 pin 121 rhombus pin 122 push rods.
Detailed description of the invention
Below in conjunction with view, the utility model is described in detail
As shown in Figure 14-18, a kind of fixture utilizing three axis machining center to process breech housing, it comprises 135 tail tops 17, left support plate 19, fixed head 25, cylinder 26, push rod 33, key seat 34, reference pins 44, positioning seat 37, right support plate 39, 135 dividing heads 41, base 36, pedestal 49, fixed head 25, key seat 34, positioning seat 37 is fixed on base 36, cylinder 26 selects SDA-φ 100 × 30, be fixed on fixed head 25, push rod 33 is fixed on key seat 34, reference pins 44 is fixed on key seat 34 by bushing 29, the tail end of push rod 33 is connected with cylinder 26, the head of push rod 33 makes the rhombus pin 121 matched with the spring eye 14 of breech housing, rhombus pin 121 inserts in the spring eye 14 of breech housing, auxiliary positioning is carried out to breech housing, the step surface 122 of push rod 33 contacts with the end face A2 of breech housing, add and man-hour breech housing is clamped, bolt apertures 13 pairs of breech housings that reference pins 44 inserts breech housing position, the bar portion cylindrical 1 of breech housing inserts in the hole 123 of positioning seat, the bar portion cylindrical 1 of positioning seat 37 pairs of breech housings plays a supportive role, the end face B3 of breech housing contacts with the end face 124 of positioning seat, coordinate with push rod 33 and breech housing is clamped, pedestal 49 is fixed on positioning seat 37, pedestal 49 holds the bar portion cylindrical 1 of breech housing, supplemental support effect is play to the bar portion cylindrical 1 of breech housing, to prevent the vibration of workpiece, pedestal 49 comprises bottom plate 491, opening-closing plate 48, connecting rod 46, dish shape nut 47, pin 52, it is hinged that pedestal 49 and opening-closing plate 48 pass through pin 52, and the other end is undertaken affixed by connecting rod 46 and dish shape nut 47.Left support plate 19 connects with 135 tail tops 17, and right support plate 39 connects with 135 dividing heads 41, and base 36 two ends are connected with left support plate 19 and right support plate 39 respectively, realize the rotation of fixture; 135 dividing head 41,135 tail tops 17 fix three axis machining center on workbench 16.
135 dividing head 41,135 tail tops 17, cylinder 26 are outsourcing piece, fixed head 25, push rod 33, key seat 34, reference pins 44, positioning seat 37, base 36, pedestal 49 are self-made components, each parts are assembled by corresponding fixture, well respectively master bar I and master bar II are detected with Magnetic gauge stand and dial gauge afterwards in the workbench pre-installation of three axis machining center processing, the linearity of master bar I and master bar II must within 0.015, and axiality must within 0.02; The center height of master bar I and master bar II must meet size 25 ± 0.01; Master bar II must meet size 57 ± 0.01 with the center height of plane on base 36; If disqualified upon inspection will each relevant fitting surface of reconditioning again, until qualified.Use after the assay was approved, when pneumatic hand rotary valve is in closed condition, unclamps push rod, unclamp opening-closing plate, put into workpiece, clamping, starts to process each face.After this fixture carries out clamping to breech housing, need four lathes in the past by all for breech housing, change the machined surface that 5 sleeve clamps just can complete 9 operations and be all exposed in the machining area of machining center, make clamped one time, complete multiple tracks and be processed into possibility.
A kind of fixture utilizing above-mentioned three axis machining center to process breech housing is in the processing technology of three axis machining center processing breech housing,, finish turning bar portion cylindrical 1 thick at breech housing, end face A2, end face B3 and after boring bolt apertures 13, spring eye 14, its main points are with the bolt apertures 13 of breech housing, spring eye 14 and end face A2 as location, end face B3 is clamping position, bar portion cylindrical 1 is as auxiliary positioning, clamped one time completes following processing to breech housing by by the order after arriving first: 1) milling inclined-plane (4) and processing R3.5 ~ 4 size, ensures 50-0.3 and 45+0.340; 2) milling circular arc 5R5; 3) helicla flute (6) is rough milled; 4) helicoid (7) is rough milled; 5) finish-milling helicla flute (6); 6) finish-milling helicoid (7); 7) milling groove 10, ensures 18+0.430,1.8+0.20 and 81.5+0.30 size; 8) milling convex shoulder 11 ensures 24.50-0.52; 9) milling clout (12), ensures size 3.5+0.30 and 1.5 ± 0.15.Above-mentioned machine after again pincers platform on manual refine helicla flute bottom surface (8) and chamfered edge (9).
Claims (3)
1. the fixture utilizing three axis machining center to process breech housing, it is characterized in that, it comprises 135 tail tops (17), left support plate (19), fixed head (25), cylinder (26), push rod (33), key seat (34), reference pins (44), positioning seat (37), right support plate (39), 135 dividing heads (41), base (36), fixed head (25), key seat (34), positioning seat (37) is fixed on base (36), cylinder (26) is fixed on fixed head (25), push rod (33), reference pins (44) is fixed on key seat (34), the tail end of push rod (33) is connected with cylinder (26), the head of push rod (33) makes the rhombus pin (121) matched with the spring eye of breech housing (14), rhombus pin (121) inserts in the spring eye (14) of breech housing, auxiliary positioning is carried out to breech housing, the step surface (122) of push rod and the end face A(2 of breech housing) contact, add and man-hour breech housing is clamped, the bolt apertures (13) that reference pins (44) inserts breech housing positions breech housing, bar portion cylindrical (1) of breech housing inserts in the hole (123) of positioning seat, bar portion cylindrical (1) of positioning seat (37) to breech housing plays a supportive role, the end face B(3 of breech housing) contact with the end face (124) of positioning seat (37), coordinate with push rod (33) and breech housing is clamped, left support plate (19) connects with 135 tail tops (17), right support plate (39) connects with 135 dividing heads (41), base (36) two ends are connected with left support plate (19) and right support plate (39) respectively, realize the rotation of fixture, 135 dividing heads (41), fixing three axis machining center, 135 tail tops (17) on workbench (16).
2. a kind of fixture utilizing three axis machining center to process breech housing according to claim 1, it is characterized in that, also there is pedestal (49), pedestal (49) is fixed on positioning seat (37), bar portion cylindrical (1) of pedestal (49) clamping breech housing, supplemental support effect is played, to prevent the vibration of workpiece to bar portion cylindrical (1) of breech housing.
3. a kind of fixture utilizing three axis machining center to process breech housing according to claim 2, it is characterized in that, pedestal (49) comprises bottom plate (491), opening-closing plate (48), connecting rod (46), dish shape nut (47), pin (52), pedestal (49) and opening-closing plate (48) hinged by pin (52), the other end is undertaken affixed by connecting rod (46) and dish shape nut (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852192.9U CN205057610U (en) | 2015-10-30 | 2015-10-30 | Utilize anchor clamps of triaxial machining center processing breech housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852192.9U CN205057610U (en) | 2015-10-30 | 2015-10-30 | Utilize anchor clamps of triaxial machining center processing breech housing |
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| Publication Number | Publication Date |
|---|---|
| CN205057610U true CN205057610U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520852192.9U Withdrawn - After Issue CN205057610U (en) | 2015-10-30 | 2015-10-30 | Utilize anchor clamps of triaxial machining center processing breech housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205057610U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171361A (en) * | 2015-10-30 | 2015-12-23 | 福建兵工装备有限公司 | Machining process and machining clamp for machining bolt carrier by means of three-axis machining center |
| CN108214965A (en) * | 2018-02-08 | 2018-06-29 | 常熟市创新陶瓷有限公司 | The clamp for machining and processing method of high powered water pump axis impeller locating platform |
-
2015
- 2015-10-30 CN CN201520852192.9U patent/CN205057610U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171361A (en) * | 2015-10-30 | 2015-12-23 | 福建兵工装备有限公司 | Machining process and machining clamp for machining bolt carrier by means of three-axis machining center |
| CN105171361B (en) * | 2015-10-30 | 2017-07-04 | 福建兵工装备有限公司 | Using the processing technology and fixture of three axis machining center processing breech housing |
| CN108214965A (en) * | 2018-02-08 | 2018-06-29 | 常熟市创新陶瓷有限公司 | The clamp for machining and processing method of high powered water pump axis impeller locating platform |
| CN108214965B (en) * | 2018-02-08 | 2024-03-12 | 常熟市创新陶瓷有限公司 | Machining clamp and machining method for high-power water pump shaft impeller positioning platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20170704 |