CN212600484U - Clamp for four-axis machining center of chain wheel seat - Google Patents
Clamp for four-axis machining center of chain wheel seat Download PDFInfo
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- CN212600484U CN212600484U CN202022134668.9U CN202022134668U CN212600484U CN 212600484 U CN212600484 U CN 212600484U CN 202022134668 U CN202022134668 U CN 202022134668U CN 212600484 U CN212600484 U CN 212600484U
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Abstract
The utility model relates to an anchor clamps for sprocket seat four-axis machining center, including the bridge plate, its special character lies in, the top surface of bridge plate on set up a plurality of corner jars side by side, decide the face of bridge plate installation corner jar as the top surface, the another side is the bottom surface, installs the limit clamp plate on the corner jar at both ends, the corner jar adopts 63 corner jars, the fixed position of limit clamp plate is at the tip, the middle clamp plate of installation on the middle corner jar, the fixed position of middle clamp plate sets up the tight mechanism that rises between two adjacent corner jars in the centre. The clamp adopts the expansion sleeve to realize gapless center hole positioning, and ensures the positioning precision of the chain wheel seat.
Description
Technical Field
The utility model relates to an anchor clamps for sprocket seat four-axis machining center belongs to machining and equips technical field.
Background
Support sprocket wheel seat for among engineering machine tool, have cylindric main part, need open the centre bore in the main part, the middle part of main part is equipped with the ring platform, and the both sides that just are located the centre bore on the ring platform set up the side opening, and it has the ream plane to open on the pore wall of centre bore, has still opened the oil cup hole on the terminal surface of centre bore, and in current processing, the manufacturing procedure divide into five steps: 1. turning a center hole, 2, milling a face, 3, drilling a center hole and two side holes, 4, counterboring a plane, 5, drilling and tapping an oil cup hole, using a lathe, a milling machine and a drilling machine, respectively finishing by a turning worker, a milling worker and a drilling worker, needing different clamps for each process, having low efficiency, needing repositioning in the process of re-clamping every time, having installation errors, causing product quality problems by any error, having high rejection rate, difficult process control and unstable quality. The four-axis machining center is widely applied because various machining forms can be carried out on one set of equipment, but for the sprocket seat for supporting the sprocket in the engineering machinery, no corresponding clamp is provided due to the complexity of the structure of the sprocket seat for supporting the sprocket in the engineering machinery.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that lacks among the engineering machine tool and support sprocket with sprocket seat anchor clamps, provide an anchor clamps that is used for sprocket seat four-axis machining center.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a clamp for a four-axis machining center of a chain wheel seat comprises a bridge plate and is characterized in that a plurality of corner cylinders are arranged on the top surface of the bridge plate side by side, the surface of the bridge plate, where the corner cylinders are installed, is determined as the top surface, the other surface is the bottom surface, side pressing plates are installed on the corner cylinders at two ends, the corner cylinders adopt 63 corner cylinders, the fixed positions of the side pressing plates are arranged at the end parts, a middle pressing plate is installed on the corner cylinder in the middle, the fixed position of the middle pressing plate is arranged in the middle, and a tensioning mechanism is arranged between every two adjacent corner cylinders;
the tensioning mechanism comprises an oil cylinder, a guide seat is fixed on the bridge plate and is positioned on the top surface of the bridge plate, and the oil cylinder is arranged on the bottom surface of the bridge plate; the guide seat comprises a fixed base, the upper part of the fixed base is provided with a conical guide pillar, the axial direction of the conical guide pillar is provided with a pressure rod cavity, the axial direction of the fixed base is provided with a pull rod cavity, and the pressure rod cavity is coaxial with the pull rod cavity; the expansion sleeve is sleeved on the conical guide post, the upper end face of the conical guide post is positioned in an inner cavity of the expansion sleeve, the pressing rod is inserted in the pressing rod cavity, a pressing cap of the pressing rod is pressed on the expansion sleeve, the other end of the pressing rod is in threaded connection with the pull rod, and the pull rod is connected with the oil cylinder.
The technical scheme has the advantages that the clamp can clamp at least two chain wheel seats at one time, so that the processing efficiency can be improved; meanwhile, a tensioning mechanism suitable for positioning and fixing the chain wheel seat is designed, an expansion sleeve of the tensioning mechanism is inserted into a central hole of the chain wheel seat, a pressing rod is pulled by an oil cylinder to move downwards, the pressing rod presses the expansion sleeve to move along a conical guide pillar, and the expansion sleeve is expanded to clamp the expansion sleeve and the central hole of the chain wheel seat tightly, so that the fine positioning effect is achieved.
On the basis of the technical scheme, the utility model discloses a reach the convenience of use and the stability of equipment, can also make following improvement to foretell technical scheme:
furthermore, the expansion sleeve is cylindrical, the inner cavity of the expansion sleeve is tapered, the expansion sleeve comprises expansion sleeve blocks and connecting rubber, and two adjacent expansion sleeve blocks are bonded together through the connecting rubber.
Furthermore, an expansion sleeve limiting ring is sleeved on the conical guide pillar, and an expansion sleeve limiting groove is formed in the expansion sleeve limiting ring; the elastic ejection columns are fixedly arranged on the fixed base, at least three elastic ejection columns are arranged around the conical guide column, and the expansion sleeve limiting ring is supported on the tops of the elastic ejection columns. The expansion sleeve limiting ring realizes the supporting effect on the expansion sleeve, and in the process of pressing down the pressure rod, the expansion sleeve expands due to the effect of the conical guide pillar along with the falling of the expansion sleeve.
Furthermore, the conical guide pillar is provided with a conical head end and a cylindrical end, and the expansion sleeve limiting ring is sleeved at the cylindrical end. The conical head is used for expanding the expansion sleeve, and the cylindrical end is used for positioning the expansion sleeve limiting ring.
Furthermore, a pressing cap of the pressing rod is provided with an expansion sleeve fixing convex ring, and the end surface of the expansion sleeve contacted with the pressing cap is provided with a convex ring groove matched with the expansion sleeve fixing convex ring. The design further utilizes the fixation of the expansion sleeve and the pressure applied to the positioning of the expansion sleeve.
Furthermore, a side positioning mechanism is arranged on the bridge plate, and the side positioning mechanism is arranged on the side edge of the corner cylinder row and is parallel to the corner cylinder row. The number of the corner cylinders is at least 3, the corner cylinders are arranged in a row, and the corner cylinder row refers to the arrangement formed by the corner cylinders.
Furthermore, the side positioning mechanism comprises an installation seat plate, positioning fork assemblies are installed on the installation seat plate, the number of the positioning fork assemblies is the same as that of the tensioning mechanisms, and the positions of the positioning fork assemblies correspond to those of the tensioning mechanisms; the positioning fork assembly comprises a positioning fork, and the positioning fork is installed at the end part of the telescopic rod of the oil cylinder A.
Furthermore, the installation seat plate is fixed at the end part of the telescopic rod of the oil cylinder B, the oil cylinder B is installed on the bottom surface of the bridge plate, seat plate guide pillars are fixedly installed on the installation seat plate and penetrate through guide pillar holes formed in the bridge plate, two seat plate guide pillars are arranged, and two adjacent seat plate guide pillars are arranged on two sides of the oil cylinder B.
The positioning fork is used for being propped against the glasses hole surface of the chain wheel seat, the two fork teeth can ensure that the glasses hole surface of the chain wheel seat can be accurately positioned at a position to be processed, and convenience is provided for next processing.
Furthermore, the bridge plate is arranged on a rotating platform of the four-axis machining center.
The utility model has the advantages that: the tensioning mechanism and the side positioning mechanism are utilized to realize accurate positioning of the chain wheel seat, and convenience is provided for subsequent face milling and drilling.
Drawings
FIG. 1 is a schematic perspective view of a fixture for a four-axis machining center of a sprocket seat according to the present application;
FIG. 2 is a schematic view showing the installation relationship between a corner cylinder and an edge pressing plate;
FIG. 3 is a schematic view showing the installation relationship between the corner cylinder and the intermediate platen;
FIG. 4 is a schematic view of the tensioning mechanism;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic structural view of the guide seat;
FIG. 7 is a sectional view taken along line B-B of FIG. 6;
FIG. 8 is a schematic structural view of the expansion sleeve;
FIG. 9 is a schematic structural view of an expansion sleeve limiting ring;
FIG. 10 is a cross-sectional view of the compression bar;
FIG. 11 is an enlarged view taken at A of FIG. 10;
FIG. 12 is a schematic view of the installation structure of the side positioning mechanism on the bridge plate;
FIG. 13 is a view from the cylinder A side of FIG. 12;
FIG. 14 is a schematic structural view of the clamp for the four-axis machining center of the sprocket seat according to the present application mounted on a rotating platform of the four-axis machining center;
FIG. 15 is a schematic view of a sprocket seat configuration.
The reference numbers are recorded as follows: 1-bridge plate, 2-corner cylinder, 3-edge pressure plate, 4-middle pressure plate, 5-oil cylinder, 6-guide seat, 6.1-fixed base, 6.2-conical guide pillar, 6.2.1-conical head end, 6.2.2-cylindrical end, 6.3-pressure rod cavity, 6.4-pull rod cavity, 7-expansion sleeve, 7.1-upper notch, 7.2-lower notch, 7.3-convex ring groove, 8-pressure rod 8.1-pressure cap, 8.2-expansion sleeve fixed convex ring, 9-pull rod, 10-expansion sleeve limit ring, 10.1-sleeve limit groove, 11-installation seat plate, 12-positioning fork, 13-oil cylinder A, 14-oil cylinder B, 15-seat plate, 16-chain wheel seat, 16.1-central hole, 16.2-side hole, 16.3-side hole plane and 16.4-oil cup hole.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
A clamp for a four-axis machining center of a chain wheel seat (see figures 1-14) comprises a bridge plate 1, wherein a plurality of corner cylinders 2 are arranged on the top surface of the bridge plate 1 side by side, side pressure plates 3 are arranged on the corner cylinders 2 at two ends, a middle pressure plate 4 is arranged on the corner cylinder 2 in the middle, and a tensioning mechanism is arranged between every two adjacent corner cylinders 2;
the tensioning mechanism comprises an oil cylinder 5 (see fig. 4-11), a guide seat 6 is fixed on the bridge plate 1 and positioned on the top surface of the bridge plate 1, and the oil cylinder 5 is arranged on the bottom surface of the bridge plate 1; the guide seat 6 comprises a fixed base 6.1, a conical guide post 6.2 arranged on the upper part of the fixed base 6.1, a pressure rod cavity 6.3 arranged in the axial direction of the conical guide post 6.2, and a pull rod cavity 6.4 arranged in the axial direction of the fixed base 6.1; the pressure rod cavity 6.3 is coaxial with the pull rod cavity 6.4; the expansion sleeve 7 is sleeved on the conical guide post 6.2, the upper end face of the conical guide post 6.2 is positioned in the inner cavity of the expansion sleeve 7, the pressure rod 8 is inserted in the pressure rod cavity 6.3, the pressure cap of the pressure rod 8 is pressed on the expansion sleeve 7, the other end of the pressure rod 8 is in threaded connection with the pull rod 9, and the pull rod 9 is connected with the oil cylinder 5;
in the above embodiment, the expansion sleeve 7 is cylindrical (see fig. 8), the inner cavity of the expansion sleeve 7 is tapered, the expansion sleeve 7 comprises expansion sleeve blocks 7.1 and connecting rubber 7.2, and two adjacent expansion sleeve blocks 7.1 are bonded together through the connecting rubber 7.2;
wherein, an expansion sleeve limiting ring 10 is sleeved on the conical guide post 6.2, and the expansion sleeve limiting ring 10 is provided with an expansion sleeve limiting groove 10.1; the elastic ejection columns are fixedly arranged on the fixed base 6.1, at least three elastic ejection columns are arranged around the conical guide column 6.2, and the expansion sleeve limiting ring 10 is supported at the top of each elastic ejection column;
wherein the conical guide post 6.2 is provided with a conical head end 6.2.1 and a cylindrical end 6.2.2, and the expansion sleeve limiting ring 10 is sleeved at the cylindrical end 6.2.2;
wherein, a pressing cap 8.1 of the pressing rod 8 is provided with an expansion sleeve fixing convex ring 8.2, and the end surface of the expansion sleeve 7 contacted with the pressing cap 8.1 is provided with a convex ring groove 7.3 matched with the expansion sleeve fixing convex ring 8.2;
wherein, a side positioning mechanism (see figure 1) is arranged on the bridge plate 1, and the side positioning mechanism is arranged at the side edge of the row 2 of corner cylinders and is parallel to the row 2 of corner cylinders;
the side positioning mechanism comprises a mounting seat plate 11 (see fig. 12-13), positioning fork assemblies are mounted on the mounting seat plate 11, the number of the positioning fork assemblies is the same as that of the tensioning mechanisms, and the positions of the positioning fork assemblies correspond to those of the tensioning mechanisms; the positioning fork assembly comprises a positioning fork 12, and the positioning fork 12 is installed at the end part of a telescopic rod of the oil cylinder A13.
The mounting seat plate 11 is fixed at the end of a telescopic rod of the oil cylinder B14, the oil cylinder B14 is mounted on the bottom surface of the bridge plate 1, the mounting seat plate 11 is fixedly provided with two seat plate guide posts 15, the seat plate guide posts 15 penetrate through guide post holes formed in the bridge plate, and two adjacent seat plate guide posts 15 are arranged on two sides of the oil cylinder B14.
The clamp in the embodiment can be arranged on a rotating platform of a four-axis machining center through a bridge plate 1.
Mounting a chain wheel seat turning a center hole to be of a qualified size on a clamp of the application, utilizing an (elastic) expansion sleeve 7 to expand and a TC cylinder to push a positioning fork 12 tightly to accurately position the center hole, then utilizing 63 corner cylinders on two sides to clamp a workpiece, utilizing the function of a four-axis of a machining center, rotating a bridge plate 1 forwards by 90 degrees, firstly roughly and finely milling a plane, then drilling the center hole and two side holes, then rotating the bridge plate 1 backwards by 180 degrees, loosening the TC cylinder, pulling back the positioning fork 12 and descending to give way a cutter to complete a facing process, rotating the bridge plate 1 forwards by 90 degrees to return to an initial clamping position, drilling and tapping an oil cup hole in a direction vertical to the previous processes, after the machining is completed, returning the cutter back to a tool magazine, rotating the 63 corner cylinder by 90 degrees to loosen, lifting the positioning fork 12 to the initial position, retracting the elastic) expansion sleeve 7, taking down the workpiece, cleaning scrap iron on a tool positioning surface by a flushing device, and preparing for the next mounting process of the sprocket seat.
Use the anchor clamps of this application to process, at four-axis machining center, the manufacturing procedure divide into two steps: 1. the center turning hole, 2, mill the face, bore centre bore and both sides hole, ream the plane, bore and attack the oil cup hole, once at processing center four-axis clamping, just can carry out the operation of each processing step, need not change anchor clamps, the equipment that uses is only lathe and machining center, only needs lathe worker and machining center operative employee to accomplish, efficiency ratio has improved 3 times originally, the process is controllable, the rejection rate is extremely low, stable in quality.
The clamp adopts the (elastic) expansion sleeve 7 to realize gapless center hole positioning, ensures the positioning precision of the chain wheel seat, and can also add two reinforcing ribs on the bridge plate 1 to avoid micro-deformation of the bridge plate 1 so as to ensure the size accuracy of the chain wheel seat.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The clamp for the four-axis machining center of the chain wheel seat comprises a bridge plate (1) and is characterized in that a plurality of corner cylinders (2) are arranged on the top surface of the bridge plate (1) side by side, side pressing plates (3) are arranged on the corner cylinders (2) at two ends, a middle pressing plate (4) is arranged on the corner cylinder (2) in the middle, and a tensioning mechanism is arranged between every two adjacent corner cylinders (2);
the tensioning mechanism comprises an oil cylinder (5), a guide seat (6) is fixed on the bridge plate (1) and is positioned on the top surface of the bridge plate (1), and the oil cylinder (5) is arranged on the bottom surface of the bridge plate (1); the guide seat (6) comprises a fixed base (6.1), a conical guide post (6.2) arranged on the upper part of the fixed base (6.1), a pressure rod cavity (6.3) is axially arranged on the conical guide post (6.2), and a pull rod cavity (6.4) is axially arranged on the fixed base (6.1); the expansion sleeve (7) is sleeved on the conical guide post (6.2), the compression rod (8) is inserted in the compression rod cavity (6.3), the compression cap of the compression rod (8) is pressed on the expansion sleeve (7), the other end of the compression rod (8) is in threaded connection with the pull rod (9), and the pull rod (9) is connected with the oil cylinder (5).
2. The clamp for the four-axis machining center of the chain wheel seat as claimed in claim 1, wherein the expansion sleeve (7) is cylindrical, the inner cavity of the expansion sleeve (7) is tapered, the expansion sleeve (7) comprises expansion sleeve blocks (7.1) and connecting rubber (7.2), and two adjacent expansion sleeve blocks (7.1) are bonded together through the connecting rubber.
3. The clamp for the four-axis machining center of the chain wheel seat as claimed in claim 1, wherein the conical guide post (6.2) is sleeved with an expansion sleeve limiting ring (10), and the expansion sleeve limiting ring (10) is provided with an expansion sleeve limiting groove (10.1); the elastic ejection columns are fixedly arranged on the fixed base (6.1), at least three elastic ejection columns are arranged around the conical guide column (6.2), and the expansion sleeve limiting ring (10) is supported at the top of each elastic ejection column.
4. The clamp for the four-axis machining center of the chain wheel seat as claimed in claim 1, wherein the conical guide post (6.2) is provided with a conical end (6.2.1) and a cylindrical end (6.2.2), and the expansion sleeve limiting ring (10) is sleeved on the cylindrical end (6.2.2).
5. The clamp for the four-axis machining center of the chain wheel seat as claimed in claim 1 or 4, wherein the pressing cap (8.1) of the pressing rod (8) is provided with an expansion sleeve fixing convex ring (8.2), and the end surface of the expansion sleeve (7) contacting with the pressing cap (8.1) is provided with a convex ring groove (7.3) matched with the expansion sleeve fixing convex ring (8.2).
6. The jig for a sprocket four-axis machining center according to claim 1, wherein the bridge plate (1) is provided with side positioning means which are arranged at the side of the row of corner cylinders (2) and parallel to the row of corner cylinders (2).
7. The fixture for the four-axis machining center of the chain wheel seat as claimed in claim 6, wherein the side positioning mechanism comprises a mounting seat plate (11), positioning fork assemblies are mounted on the mounting seat plate (11), the number of the positioning fork assemblies is the same as that of the tensioning mechanisms, and the positions of the positioning fork assemblies correspond to those of the tensioning mechanisms; the positioning fork assembly comprises a positioning fork (12), and the positioning fork (12) is installed at the end part of a telescopic rod of the oil cylinder A (13).
8. The jig for a sprocket four-axis machining center as claimed in claim 7, wherein the mounting seat plate (11) is fixed to an end of a telescopic rod of the cylinder B (14), the cylinder B (14) is mounted on a bottom surface of the bridge plate (1), the mounting seat plate (11) is fixedly mounted with a seat plate guide post (15), and the seat plate guide post (15) passes through a guide post hole provided on the bridge plate.
9. Jig for the four-axis machining center for the sprocket carrier according to any one of claims 1 to 4 and 6 to 8, characterized by that the bridge (1) is mounted on the rotating platform of the four-axis machining center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022134668.9U CN212600484U (en) | 2020-09-25 | 2020-09-25 | Clamp for four-axis machining center of chain wheel seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022134668.9U CN212600484U (en) | 2020-09-25 | 2020-09-25 | Clamp for four-axis machining center of chain wheel seat |
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| Publication Number | Publication Date |
|---|---|
| CN212600484U true CN212600484U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022134668.9U Active CN212600484U (en) | 2020-09-25 | 2020-09-25 | Clamp for four-axis machining center of chain wheel seat |
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| CN (1) | CN212600484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025370A (en) * | 2020-09-25 | 2020-12-04 | 莱州鸿源台钳制造有限公司 | Clamp for four-axis machining center of chain wheel seat |
-
2020
- 2020-09-25 CN CN202022134668.9U patent/CN212600484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025370A (en) * | 2020-09-25 | 2020-12-04 | 莱州鸿源台钳制造有限公司 | Clamp for four-axis machining center of chain wheel seat |
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