CN214443309U - A kind of pin-joint chain curved chain plate drilling jig - Google Patents
A kind of pin-joint chain curved chain plate drilling jig Download PDFInfo
- Publication number
- CN214443309U CN214443309U CN202120089511.0U CN202120089511U CN214443309U CN 214443309 U CN214443309 U CN 214443309U CN 202120089511 U CN202120089511 U CN 202120089511U CN 214443309 U CN214443309 U CN 214443309U
- Authority
- CN
- China
- Prior art keywords
- holes
- clamping arm
- positioning
- workpiece
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
本实用新型公开一种销合链弯链板钻孔夹具，属于机械加工技术领域。该钻孔夹具包括夹具体、定位销、第一气缸、钻模板、快换钻套、第一平面压板、夹紧臂、铰座、连杆、连接块、第二气缸、弧面压板、第二平面压板及定位支座。其工作原理是：工件夹在定位支座上，通过定位销限制工件的位置，第二气缸的活塞杆推动连接块运动，分别通过三个连杆使三个夹紧臂转动，进而使三个压板分别压紧工件的三个表面，使工件处于压紧状态；钻床的钻头可依次从两个快换钻套中引入，依次完成工件上两组平行销孔的钻削加工；第二气缸的活塞杆复位，通过连接块带动各压板使工件处于放松状态，第一气缸的活塞杆运动将工件推出后复位，进入下一个工作循环。
The utility model discloses a drilling fixture for a pinned chain curved chain plate, which belongs to the technical field of machining. The drilling fixture includes a clamping body, a positioning pin, a first air cylinder, a drill template, a quick-change drill sleeve, a first flat pressing plate, a clamping arm, a hinge seat, a connecting rod, a connecting block, a second air cylinder, a curved surface pressing plate, a first flat pressing plate, and a second air cylinder. Two plane pressing plates and positioning supports. Its working principle is: the workpiece is clamped on the positioning support, the position of the workpiece is limited by the positioning pin, the piston rod of the second cylinder pushes the connecting block to move, and the three clamping arms are rotated through the three connecting rods respectively, and then the three clamping arms are rotated. The pressing plate presses the three surfaces of the workpiece respectively, so that the workpiece is in a pressed state; the drill bits of the drilling machine can be introduced from the two quick-change drill sleeves in turn to complete the drilling of the two sets of parallel pin holes on the workpiece in turn; When the piston rod is reset, each pressure plate is driven by the connecting block to make the workpiece in a relaxed state, and the piston rod of the first cylinder pushes the workpiece out and resets, and enters the next working cycle.
Description
The technical field is as follows:
the utility model belongs to the technical field of machining, concretely relates to curved link joint boring grab of round pin chain.
Background art:
the pinning chain is widely applied to a plurality of fields such as steel mills, power plants, mine metallurgy conveying, agricultural machinery, light industry and the like, and is commonly used under severe working conditions. The pin-jointed chain is formed by connecting pin-jointed chain bent plates through pin shafts, and the upper hole and the lower hole of each pin-jointed chain bent plate are concentric to each other. The pin-jointed chain bent chain plate is integrally U-shaped, the spacing width of the opening end of the pin-jointed chain bent chain plate is larger than that of the bottom end of the pin-jointed chain bent chain plate, a pair of coaxial negative tolerance pin holes are formed in the opening end of the U-shaped bent chain plate, a pair of coaxial positive tolerance pin holes are formed in the lower end of the U-shaped bent chain plate, and certain symmetry degree needs to be guaranteed through the two pairs of pin holes.
The invention content is as follows:
the utility model provides an above-mentioned technical problem to prior art exists, a curved link joint boring grab of round pin chain is closed, this boring grab includes the anchor clamps body 1, locating pin 3, first cylinder 4, hexagon socket head cap screw 5, internal thread locating pin 6, bushing plate 7, quick change drill bushing 8, first plane clamp plate 9, first clamp arm 10, first free bearing 11, first connecting rod 12, connecting block 13, second cylinder 14, second connecting rod 15, second free bearing 16, second clamp arm 17, cambered surface clamp plate 18, third connecting rod 19, third free bearing 20, third clamp arm 21, second plane clamp plate 22 and location support 23.
The fixture body 1 comprises a base, a side plate and a supporting plate, wherein the base is provided with a U-shaped fixture mounting hole, the side plate is positioned on the left side of the base, the side plate is provided with a through hole and a plurality of threaded holes, and the second air cylinder 14 is mounted at the through hole of the side plate through a screw; the supporting plate is positioned at the middle rear part of the base, rib plates are respectively arranged at the front and the rear of the supporting plate for auxiliary support, a horizontal open slot is formed in the middle of the supporting plate, the positioning support 23 is installed in the horizontal open slot, and the positioning support 23 is in transition fit with the horizontal open slot in the middle of the supporting plate and is fixedly connected with the horizontal open slot through a screw; the horizontal open slot middle part of backup pad is equipped with through-hole and a plurality of screw hole, first cylinder 4 passes through the screw and installs the through-hole department in backup pad middle part, just the piston rod axis of first cylinder 4 with the axis of backup pad through-hole is coaxial.
The positioning support 23 is in a long strip-shaped step structure, a square through hole in the front-back direction is formed in the middle of the positioning support 23, and the size of the square through hole can accommodate the piston rod of the first cylinder 4 to move back and forth; the upper end surface and the lower end surface of the positioning support 23 are stepped surfaces, and the thickness dimension of the stepped surfaces is matched with the shape dimension of the workpiece 2; two jig through holes are arranged on the upper step surface and the lower step surface of the positioning support 23, the sizes of the two jig through holes are larger than the size of a pin hole of the workpiece 2, and the positions and the center distances of the two jig through holes are consistent with the positions and the center distances of the pin hole of the workpiece 2; five positioning pins 3 are respectively arranged on the peripheries of the two drill jig through holes on the upper step surface and the lower step surface of the positioning support 23, and the five positioning pins 3 are arranged and installed according to the external dimension of the workpiece 2; the upper end face, the front end face and the lower end face of the left side of the positioning support 23 are respectively provided with a square positioning hole for fixing the first hinged support 11, the second hinged support 16 and the third hinged support 20, and the first hinged support 11, the second hinged support 16 and the third hinged support 20 are connected with the square positioning hole of the positioning support 23 in an interference fit manner.
The drill plate 7 is fixedly connected with the supporting plate of the fixture body 1 in a positioning mode through the internal thread positioning pin 6 and the hexagon socket head cap screw 5; the drill plate 7 is provided with two guide holes, the two guide holes are respectively connected with the two quick-change drill bushings 8 in an interference fit manner, and the two quick-change drill bushings 8 are respectively coaxially arranged with the two drill plate through holes of the positioning support 23.
The connecting block 13 is fixedly connected with a piston rod of the second air cylinder 14 through a threaded hole formed in the middle of the connecting block, and the upper end face, the front end face and the lower end face of the connecting block 13 are respectively provided with a U-shaped hinged support.
The first clamping arm 10, the second clamping arm 17 and the third clamping arm 21 are all L-shaped connecting rods, and connecting holes are formed in the two ends and the middle corners of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21; the left end connecting holes of the first connecting rod 12, the second connecting rod 15 and the third connecting rod 19 are respectively hinged with the U-shaped hinge base of the connecting block 13 through pins, and the right end connecting holes of the first connecting rod 12, the second connecting rod 15 and the third connecting rod 19 are respectively hinged with the left end connecting holes of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21; the middle connecting holes of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21 are hinged with the first hinge base 11, the second hinge base 16 and the third hinge base 20 through pins respectively; the right end connecting holes of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21 are fixedly connected with the middle mounting holes of the first plane pressing plate 9, the cambered surface pressing plate 18 and the second plane pressing plate 22 respectively.
Due to the structural particularity of the pinned chain bent chain plate, the drilling clamp is adopted to process the pin holes of the pinned chain bent chain plate, the symmetry requirement of processing two pairs of pin holes can be met by means of the guiding of the drill bushing and the accurate positioning of the positioning pin, the guarantee is provided for the automatic assembly of the pinned chain, the processing precision and the automation degree of the pinned chain bent chain plate are effectively improved, and the labor intensity of workers is reduced.
Description of the drawings:
fig. 1 is a schematic structural view of the pin chain bent chain plate drilling fixture of the present invention;
fig. 2 is a schematic structural view of the pin chain bent link plate drilling jig of the present invention in a front view;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;
fig. 4 is a schematic rear view of the chain plate bending hole drilling jig of the pin chain of the present invention;
FIG. 5 is a schematic structural view of a middle positioning support structure of the present invention;
fig. 6 is a schematic structural view of the chain bending plate workpiece of the middle pin chain of the present invention.
In the figure: 1: a clamp body; 2: a workpiece; 3: positioning pins; 4: a first cylinder; 5: a hexagon socket head cap screw; 6: an internal thread positioning pin; 7: drilling a template; 8: quickly replacing the drill bushing; 9: a first planar platen; 10: a first clamp arm; 11: a first hinge base; 12: a first link; 13: connecting blocks; 14: a second cylinder; 15: a second link; 16: a second hinge base; 17: a second clamp arm; 18: a cambered surface pressing plate; 19: a third link; 20: a third free bearing; 21: a third clamp arm; 22: a second planar platen; 23: and positioning the support.
The specific implementation mode is as follows:
the utility model provides a pair of curved link joint boring grab of round pin chain closes includes the anchor clamps body 1, locating pin 3, first cylinder 4, hexagon socket head cap screw 5, internal thread locating pin 6, bushing plate 7, quick change drill bushing 8, first plane clamp plate 9, first clamp arm 10, first free bearing 11, first connecting rod 12, connecting block 13, second cylinder 14, second connecting rod 15, second free bearing 16, second clamp arm 17, cambered surface clamp plate 18, third connecting rod 19, third free bearing 20, third clamp arm 21, second plane clamp plate 22 and location support 23. The fixture body 1 is installed on a drilling machine workbench surface through bolt linkage.
The fixture body 1 comprises a base, a side plate and a supporting plate, wherein the base is provided with a U-shaped fixture mounting hole, the side plate is positioned on the left side of the base, the side plate is provided with a through hole and a plurality of threaded holes, and the second air cylinder 14 is mounted at the through hole of the side plate through a screw; the supporting plate is positioned at the middle rear part of the base, rib plates are respectively arranged at the front and the rear of the supporting plate for auxiliary support, a horizontal open slot is formed in the middle of the supporting plate, the positioning support 23 is installed in the horizontal open slot, and the positioning support 23 is in transition fit with the horizontal open slot in the middle of the supporting plate and is fixedly connected with the horizontal open slot through a screw; a through hole and a plurality of threaded holes are formed in the middle of the horizontal open slot of the supporting plate, the first air cylinder 4 is installed at the through hole in the middle of the supporting plate through a screw, and the axis of a piston rod of the first air cylinder 4 is coaxial with the axis of the through hole of the supporting plate; the positioning support 23 is in a long strip-shaped step structure, a square through hole in the front-back direction is formed in the middle of the positioning support 23, and the size of the square through hole can accommodate the piston rod of the first cylinder 4 to move back and forth; the upper end surface and the lower end surface of the positioning support 23 are stepped surfaces, and the thickness dimension of the stepped surfaces is matched with the shape dimension of the workpiece 2; two jig through holes are arranged on the upper step surface and the lower step surface of the positioning support 23, the sizes of the two jig through holes are larger than the size of a pin hole of the workpiece 2, and the positions and the center distances of the two jig through holes are consistent with the positions and the center distances of the pin hole of the workpiece 2; five positioning pins 3 are respectively arranged on the peripheries of the two drill jig through holes on the upper step surface and the lower step surface of the positioning support 23, and the five positioning pins 3 are arranged and installed according to the external dimension of the workpiece 2; square positioning holes for fixing the first hinged support 11, the second hinged support 16 and the third hinged support 20 are respectively formed in the upper end face, the front end face and the lower end face of the left side of the positioning support 23, and the first hinged support 11, the second hinged support 16 and the third hinged support 20 are connected with the square positioning holes of the positioning support 23 in an interference fit manner; the drill plate 7 is fixedly connected with the supporting plate of the fixture body 1 in a positioning mode through the internal thread positioning pin 6 and the hexagon socket head cap screw 5; the drill plate 7 is provided with two guide holes, the two guide holes are respectively connected with the two quick-change drill bushings 8 in an interference fit manner, and the two quick-change drill bushings 8 are respectively coaxially arranged with the two drill plate through holes of the positioning support 23; the connecting block 13 is of a square structure, the connecting block 13 is fixedly connected with a piston rod of the second air cylinder 14 through a threaded hole formed in the middle of the connecting block 13, and the upper end face, the front end face and the lower end face of the connecting block 13 are respectively provided with a U-shaped hinged support; the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21 are all L-shaped connecting rods, and connecting holes are formed in the two ends and the middle corners of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21; the left end connecting holes of the first connecting rod 12, the second connecting rod 15 and the third connecting rod 19 are respectively hinged with the U-shaped hinge base of the connecting block 13 through pins, and the right end connecting holes of the first connecting rod 12, the second connecting rod 15 and the third connecting rod 19 are respectively hinged with the left end connecting holes of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21; the middle connecting holes of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21 are hinged with the first hinge base 11, the second hinge base 16 and the third hinge base 20 through pins respectively; the right end connecting holes of the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21 are fixedly connected with the middle mounting holes of the first plane pressing plate 9, the cambered surface pressing plate 18 and the second plane pressing plate 22 respectively.
The utility model discloses the theory of operation is: the workpiece 2 is clamped on the positioning support 23, and the position of the workpiece 2 is limited by five positioning pins 3 on the upper surface and the lower surface of the positioning support 23 respectively, so that the workpiece 2 is completely positioned; the second cylinder 14 moves, a piston rod of the second cylinder 14 pushes the connecting block 13 to move linearly, the connecting block 13 drives the first connecting rod 12, the second connecting rod 15 and the third connecting rod 19 to move respectively, so that the first clamping arm 10, the second clamping arm 17 and the third clamping arm 21 rotate around respective axes on the first hinged support 11, the second hinged support 16 and the third hinged support 20 respectively, the first plane pressing plate 9 is pushed to press the upper surface of the workpiece 2, the second plane pressing plate 22 is pushed to press the lower surface of the workpiece 2, the cambered surface pressing plate 18 is pushed to press the cambered surface of the workpiece 2, and the workpiece 2 is in a clamping state at this time; then, a drill bit of a drilling machine is sequentially led in from the two quick-change drill bushings 8, and drilling machining of two groups of parallel pin holes on the workpiece is sequentially completed; after drilling is completed, the piston rod of the second air cylinder 14 is reset, and the connecting block 13 drives the pressing plates to be opened and away from the workpiece, so that the workpiece is in a relaxed state; at this time, the piston rod of the first cylinder 4 moves to push the workpiece 2 out and then reset, and the next working cycle is started.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120089511.0U CN214443309U (en) | 2021-01-13 | 2021-01-13 | A kind of pin-joint chain curved chain plate drilling jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120089511.0U CN214443309U (en) | 2021-01-13 | 2021-01-13 | A kind of pin-joint chain curved chain plate drilling jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214443309U true CN214443309U (en) | 2021-10-22 |
Family
ID=78111742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120089511.0U Expired - Fee Related CN214443309U (en) | 2021-01-13 | 2021-01-13 | A kind of pin-joint chain curved chain plate drilling jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214443309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692338A (en) * | 2021-01-13 | 2021-04-23 | 安徽工业大学 | Pin-jointed chain bent chain plate drilling clamp |
| CN115213712A (en) * | 2022-08-01 | 2022-10-21 | 集美工业学校 | Machining equipment and axial preloading device of machining equipment |
| CN115301979A (en) * | 2022-07-25 | 2022-11-08 | 济南中船设备有限公司 | Piston pin drilling tool |
-
2021
- 2021-01-13 CN CN202120089511.0U patent/CN214443309U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692338A (en) * | 2021-01-13 | 2021-04-23 | 安徽工业大学 | Pin-jointed chain bent chain plate drilling clamp |
| CN115301979A (en) * | 2022-07-25 | 2022-11-08 | 济南中船设备有限公司 | Piston pin drilling tool |
| CN115301979B (en) * | 2022-07-25 | 2023-10-13 | 济南中船设备有限公司 | Piston pin drilling tool |
| CN115213712A (en) * | 2022-08-01 | 2022-10-21 | 集美工业学校 | Machining equipment and axial preloading device of machining equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206847504U (en) | A kind of flexible fixture applied to 3-D scanning | |
| CN203738087U (en) | Set hinge drill jig | |
| CN106271777B (en) | Multistation fast pneumatic positions clamping tool | |
| CN110434372A (en) | A kind of thin plate drilling tool fixture and its clamping method | |
| CN210909097U (en) | Special drilling clamp for L-shaped parts | |
| CN112692338A (en) | Pin-jointed chain bent chain plate drilling clamp | |
| CN106736763A (en) | A kind of spring hanger inner side end milling fixture | |
| CN210360134U (en) | Horizontal tool for assembling rod-shaped workpiece and thin-wall sleeve | |
| CN105312628B (en) | A kind of drill jig drilled for elongate pushrod two ends | |
| CN107234207B (en) | Six mould cold mound machines retooling auxiliary machinery hand systems | |
| CN118635554A (en) | A curved surface punching guide mechanism | |
| CN206632682U (en) | One kind combination clamping device | |
| CN111203733A (en) | Fixing device for processing bit leg shaft neck | |
| CN216503656U (en) | Four-shaft double-station hydraulic clamp with uniform holding force | |
| CN110434445A (en) | Rolling cage shoe pedestal earrings component spot welding group is to frock clamp | |
| CN206343913U (en) | A kind of milling fixture for processing diplopore connecting rod medial launder | |
| CN106271776B (en) | For processing three station pneumatic positioning clamping devices of housing part | |
| CN206083939U (en) | A special fixture for processing hinge hole | |
| CN210909649U (en) | a fixture | |
| CN205630062U (en) | Automatic multi-category clamping system and CNC machine tools | |
| CN212121803U (en) | Special-shaped workpiece drilling device for rear pull rod head of brake adjuster | |
| CN207824432U (en) | Drilling machine aperture clamp fixture | |
| CN116100335A (en) | An auxiliary clamping tool for workpiece processing | |
| CN208991814U (en) | A kind of multi-angle thrust bearing oilhole drill jig | |
| CN219379902U (en) | Novel tool clamp for concave-shaped workpiece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |