CN211101664U - Self-locking type rotating clamp - Google Patents
Self-locking type rotating clamp Download PDFInfo
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- CN211101664U CN211101664U CN201922124590.XU CN201922124590U CN211101664U CN 211101664 U CN211101664 U CN 211101664U CN 201922124590 U CN201922124590 U CN 201922124590U CN 211101664 U CN211101664 U CN 211101664U
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- tightening sleeve
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- chuck
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Abstract
The utility model belongs to the mechanical fixture field discloses a from locking-type rotating fixture. The fixing seat comprises a mounting seat, a tightening sleeve and a fixing plate, wherein the tightening sleeve and the fixing plate are respectively arranged on two sides of the mounting seat; the central shaft is movably arranged in the fixed seat in a penetrating way; the chuck and the movable plate are respectively connected to two ends of the central shaft, and the chuck and the tightening sleeve are positioned on the same side of the mounting seat; the elastic pieces are clamped between the fixed plate and the movable plate; the driving structure can drive the movable plate to move towards the fixed plate, the elastic piece can be propped against the movable plate to be away from the fixed plate, the chuck is driven to stretch into the tightening sleeve through the central shaft to clamp a workpiece, and when the driving structure drives the movable plate to move towards the fixed plate, the central shaft drives the chuck to stretch out from the tightening sleeve to release clamping of the workpiece. The self-locking rotary clamp can complete the dismounting and mounting of the workpiece by utilizing internal force, has low requirement on the strength of the turntable, and is simple and convenient to operate and time-saving.
Description
Technical Field
The utility model belongs to the mechanical fixture field especially relates to a from locking-type rotating fixture.
Background
In the mechanical field, the fixture is used as a necessary tool in the machining process, and the speed of assembly and disassembly and the requirement condition on the mounting table seriously affect the machining efficiency and the input cost.
The existing rotary clamp still needs to increase external force to complete the dismounting and mounting of the shaft parts, so that the time consumption is long, the requirement on the strength of a turntable is high, meanwhile, due to the fact that the external force is applied, clamping parts are easily damaged, the production time is long, the cost input is high, the yield is low, and further the processing efficiency is seriously influenced.
Therefore, a self-locking rotary clamp with convenient assembly and disassembly is needed to solve the technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from locking-type rotating fixture, the during operation need not additionally provide external force, utilizes the dismouting clamp that the work piece just can be accomplished to anchor clamps internal force, and requires lowly to the revolving stage intensity, and easy and simple to handle, save time.
To achieve the purpose, the utility model adopts the following technical proposal:
a self-locking rotary clamp comprising:
the fixing seat comprises a mounting seat, a tightening sleeve and a fixing plate, the tightening sleeve is arranged on one side of the mounting seat, and the fixing plate is arranged on the other side of the mounting seat;
the central shaft is movably arranged in the fixed seat in a penetrating way;
the clamping head is connected to one end of the central shaft, and the clamping head and the tightening sleeve are positioned on the same side of the mounting seat;
the movable plate is connected to the other end of the central shaft, and the movable plate and the fixed plate are positioned on the same side of the mounting seat;
the elastic pieces are clamped between the fixed plate and the movable plate, and the elastic pieces are configured to drive the movable plate to be away from the fixed plate, so that the movable plate drives the chuck to extend into the tightening sleeve through the central shaft and clamp a workpiece;
and the driving structure can drive the movable plate to move towards the fixed plate and drive the chuck to extend out of the tightening sleeve, so that the workpiece is released from being clamped.
Preferably, the chuck comprises a plurality of elastic clamping claws, the outer side surfaces of the clamping claws are in a diagonal shape, and when the chuck extends into the tightening sleeve, the tightening sleeve presses the plurality of clamping claws towards each other through the outer side surfaces of the clamping claws.
Preferably, the elastic members are uniformly distributed in a circumferential manner around the center of the movable plate.
Preferably, the fixing seat further comprises a plurality of connecting rods, one ends of the connecting rods are connected with the fixing plate, and the other ends of the connecting rods are connected with the tightening sleeve.
Preferably, the fixing seat further comprises a gear, the gear is arranged on the connecting rod, and when the gear is driven to rotate by an external driving structure in a clamping state, the gear can drive the tightening sleeve and the chuck to rotate.
Preferably, the driving structure includes a fixed frame and a transmission mechanism, the fixed frame is used for fixedly supporting the transmission mechanism, and the transmission mechanism can drive the movable plate to move towards the fixed plate.
Preferably, the transmission mechanism comprises a top head and an upper cylinder, the upper cylinder is arranged on the fixed frame, the top head is connected with the output end of the upper cylinder, and the upper cylinder can drive the top head to abut against the movable plate so as to drive the movable plate to move towards the fixed plate.
Preferably, the fixing frame comprises a plurality of hook claws and a base plate, the hook claws are connected to the base plate, and claw heads of the hook claws are located between the fixing plate and the fixing seat.
Preferably, the fixed frame further comprises a guide post, a mounting plate and a lower cylinder, the lower cylinder is arranged on the mounting plate, one end of the guide post is connected to the mounting plate, the other end of the guide post penetrates out of the bottom plate, and the output end of the lower cylinder is connected to the upper cylinder through a buffer.
Preferably, one side of each elastic part is provided with a limiting column, and the length of the limiting column is smaller than that of the elastic part in a free state.
The beneficial effects of the utility model
When the self-locking rotary clamp of the utility model clamps a workpiece, the elastic piece drives the movable plate to be far away from the fixed plate, so that the movable plate drives the chuck to extend into the tightening sleeve through the central shaft and clamp the workpiece; when the driving structure works, the driving structure drives the movable plate to move towards the fixed plate and drives the chuck to extend out of the tightening sleeve, and the workpiece is released from being clamped. The utility model discloses anchor clamps rely on anchor clamps self internal force completely to the clamp of work piece and unblock, do not need equipment beyond the anchor clamps to exert external force to need additionally not increase the weight of whole equipment, require lowly to the revolving stage intensity, easy operation saves time simultaneously, can effectively improve machining efficiency.
Drawings
Fig. 1 is a schematic front structural view of a self-locking rotary clamp provided by the present invention;
fig. 2 is a schematic view of the internal structure of the fixing seat of the self-locking rotary clamp provided by the present invention;
fig. 3 is a schematic view of the chuck structure of the self-locking rotary clamp provided by the present invention.
In the figure:
1. a fixed seat; 2. a central shaft; 3. a chuck; 4. a movable plate; 5. an elastic member; 6. a drive structure; 7. a limiting column;
11. tightening the sleeve; 12. a fixing plate; 13. a connecting rod; 14. a gear; 15. a mounting seat;
61. a fixed mount; 62. a transmission mechanism;
611. hooking claws; 612. a base plate; 613. a guide post; 614. mounting a plate; 615. a lower cylinder; 621. ejecting the head; 622. an upper cylinder; 623. a buffer.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and can include, for example, fixed or removable connections, mechanical or electrical connections, direct connections, indirect connections through an intermediary, communication between two elements, or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not in direct contact, but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-3, the present invention provides a self-locking rotary clamp, which comprises a fixing base 1, a central shaft 2, a clamping head 3, a movable plate 4, an elastic member 5 and a driving structure 6. The fixing seat 1 comprises a mounting seat 15, a tightening sleeve 11 and a fixing plate 12, wherein the tightening sleeve 11 is arranged on one side of the mounting seat 15, and the fixing plate 12 is arranged on the other side of the mounting seat 15; the central shaft 2 is movably arranged in the fixed seat 1 in a penetrating way; the chuck 3 is connected to one end of the central shaft 2, and the chuck 3 and the tightening sleeve 11 are positioned on the same side of the mounting seat 15; the movable plate 4 is connected to the other end of the central shaft 2, and the movable plate 4 and the fixed plate 12 are positioned on the same side of the mounting seat 15; a plurality of elastic members 5 are interposed between the fixed plate 12 and the movable plate 4, and the elastic members 5 are configured to drive the movable plate 4 away from the fixed plate 12, so that the movable plate 4 drives the chuck 3 to extend into the tightening sleeve 11 through the central shaft 2 and clamp the workpiece.
The driving structure can drive the movable plate 4 to move towards the fixed plate 12 and drive the chuck 3 to extend out of the tightening sleeve 11, so as to release the clamping of the workpiece.
When the self-locking rotary clamp is used for clamping a workpiece in the embodiment, the elastic part 5 is in a compressed state, and the upward force of the elastic part 5 is transmitted through the central shaft 2 to drive the chuck 3 to extend into the tightening sleeve 11 and clamp the workpiece. When the unlocking is needed, the driving structure 6 drives the movable plate 4 to move towards the fixed plate 12, the elastic element 5 is further compressed, the chuck 3 is driven to move upwards through the central shaft 2, the chuck 3 is separated from the tightening sleeve 11, the clamped component is loosened, and the unlocking action is completed. This operation process relies on anchor clamps self internal force completely, need not add external force, and is low to the requirement of revolving stage intensity, and easy operation saves time simultaneously, can effectively improve machining efficiency.
Alternatively, the chuck 3 comprises a plurality of elastic clamping jaws, the outer sides of the clamping jaws are in a diagonal shape, when the chuck 3 extends into the tightening sleeve 11, the tightening sleeve 11 presses the plurality of clamping jaws towards each other through the diagonal outer sides of the clamping jaws to clamp the component to be clamped, as shown in fig. 3, in this embodiment, the chuck is provided with 3 clamping jaws. In addition to the above-mentioned plurality of resilient clamping jaws, the collet 3 may also comprise an annular resilient member.
Specifically, the plurality of elastic members 5 are uniformly distributed in a circumferential manner around the center of the movable plate 4, wherein the elastic members 5 may be springs, rubber, or other elements with elastic recovery. In this embodiment, be the circular form evenly distributed with 5 springs, the centrifugal force that produces when reducible anchor clamps are rotatory guarantees that anchor clamps rotate steadily.
Optionally, the fixing base 1 further comprises a plurality of connecting rods 13 and gears 14, one ends of the connecting rods 13 are connected with the fixing plate 12, the other ends of the connecting rods 13 are connected with the tightening sleeve 11, the gears 14 are arranged on the connecting rods 13, the connecting rods 13 are connected with the fixing plate 12 and the tightening sleeve 11 in a matched mode, the connecting rods 13 and the tightening sleeve 11 which are suitable in size can be selected according to the size of a component to be clamped, and the application range of the self-locking rotary clamp is wide. In the clamped state, when the external driving structure drives the gear 14 to rotate, the gear 14 can drive the tightening sleeve 11 and the chuck 3 to rotate. In this embodiment, 4 connecting rods are provided, and are uniformly distributed in a circumferential manner around the center of the circle of the fixing plate 12, so as to ensure the stability of rotation.
Specifically, the driving structure 6 includes a fixed frame 61 and a transmission mechanism 62, the fixed frame 61 is used for fixedly supporting the transmission mechanism 62, and the transmission mechanism 62 can drive the movable plate 4 to move towards the fixed plate 12. Providing an unlocking driving force for the clamp.
More specifically, the transmission mechanism 62 includes a top 621 and an upper cylinder 622, the upper cylinder 622 is disposed on the fixed frame 61, the top 621 is connected with an output end of the upper cylinder 622, and the upper cylinder 622 can drive the top 621 against the movable plate 4 to drive the movable plate 4 to move toward the fixed plate 12.
Specifically, the fixing frame 61 includes hooks 611, a bottom plate 612, a guide post 613, a mounting plate 614 and a lower cylinder 615, the hooks 611 are connected to the bottom plate 612, and the heads of the hooks 611 are located between the fixing plate 12 and the fixing base 1. During unlocking, the jacking head 621 abuts against the movable plate 4, the movable plate 4 can generate upward thrust on the fixed plate 12 through the elastic part 5, the claw heads abut against the fixed plate 12, and the force generated by the elastic part 5 on the fixed plate 12 is balanced, so that the clamp is kept stable during unlocking; the lower cylinder 615 is disposed on the mounting plate 614, one end of the guide post 613 is connected to the mounting plate 614, the other end of the guide post passes through the bottom plate 612, and the output end of the lower cylinder 615 is connected to the upper cylinder 622 through the buffer 623. The linear bearing is sleeved at the joint of the guide post 613 and the bottom plate 612, when the lower cylinder 615 is deflated, the buffer 623 connected with the output end of the linear bearing moves downwards to drive the upper cylinder 622, the bottom plate 612 and the hook 611 to move downwards, the head of the hook abuts against the fixed plate 12, the upper cylinder 622 is inflated, the output end of the linear bearing drives the top 621 to move upwards, and the movable plate 4 is driven to move towards the fixed plate 12, so that the unlocking action is completed.
Alternatively, a stopper 7 having a length smaller than that of the elastic member 5 in the locked state is provided at one side of each elastic member 5.
When the unlocking is required, the top 621 of the driving structure 6 moves upwards to drive the movable plate 4 to move towards the fixed plate 12, so as to further compress the elastic element 5, and after the movable plate 4 moves towards the fixed plate 12 for a certain distance, the movable plate 4 abuts against the limiting column 7, at this time, the movable plate 4 stops moving, so that the length of the chuck 3 which is disengaged from the tightening sleeve 11 is controlled, and the clamping element is prevented from disengaging too long.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A self-locking rotary clamp is characterized by comprising:
the fixing seat (1) comprises a mounting seat (15), a tightening sleeve (11) and a fixing plate (12), wherein the tightening sleeve (11) is arranged on one side of the mounting seat (15), and the fixing plate (12) is arranged on the other side of the mounting seat (15);
the central shaft (2) is movably arranged in the fixed seat (1) in a penetrating way;
the chuck (3) is connected to one end of the central shaft (2), and the chuck (3) and the tightening sleeve (11) are positioned on the same side of the mounting seat (15);
a movable plate (4) connected to the other end of the central shaft (2), the movable plate (4) and the fixed plate (12) being located on the same side of the mounting seat (15);
the elastic pieces (5) are clamped between the fixed plate (12) and the movable plate (4), and the elastic pieces (5) are configured to drive the movable plate (4) to be away from the fixed plate (12), so that the movable plate (4) drives the chuck (3) to extend into the tightening sleeve (11) through the central shaft (2) and clamp a workpiece;
the driving structure (6) can drive the movable plate (4) to move towards the fixed plate (12) and drive the chuck (3) to extend out of the tightening sleeve (11), and the clamping of the workpiece is released.
2. The self-locking rotary clamp according to claim 1, wherein the collet (3) comprises a plurality of elastic clamping jaws, the outer sides of the clamping jaws are beveled, and when the collet (3) is inserted into the tightening sleeve (11), the tightening sleeve (11) presses the clamping jaws towards each other through the outer sides of the clamping jaws.
3. The self-locking rotary clamp according to claim 1, wherein the plurality of elastic members (5) are uniformly distributed in a circumferential manner around the center of the movable plate (4).
4. The self-locking rotary clamp according to claim 1, wherein the fixing base (1) further comprises a connecting rod (13), one end of the connecting rod (13) is connected with the fixing plate (12), and the other end is connected with the tightening sleeve (11).
5. The self-locking rotary clamp according to claim 4, wherein the fixing base (1) further comprises a gear (14), the gear (14) is disposed on the connecting rod (13), and in the clamping state, when an external driving structure drives the gear (14) to rotate, the gear (14) can drive the tightening sleeve (11) and the clamping head (3) to rotate.
6. The self-locking rotary clamp according to claim 1, wherein the driving structure (6) comprises a fixed frame (61) and a transmission mechanism (62), the fixed frame (61) is used for fixedly supporting the transmission mechanism (62), and the transmission mechanism (62) can drive the movable plate (4) to move towards the fixed plate (12).
7. The self-locking rotary clamp according to claim 6, wherein the transmission mechanism (62) comprises a top head (621) and an upper cylinder (622), the upper cylinder (622) is disposed on the fixed frame (61), the top head (621) is connected with an output end of the upper cylinder (622), and the upper cylinder (622) can drive the top head (621) to abut against the movable plate (4) to drive the movable plate (4) to move towards the fixed plate (12).
8. The self-locking rotary clamp according to claim 7, wherein the fixing frame (61) comprises a plurality of hooks (611) and a bottom plate (612), the plurality of hooks (611) are connected to the bottom plate (612), and the heads of the hooks (611) are located between the fixing plate (12) and the fixing base (1).
9. The self-locking rotary clamp according to claim 8, wherein the fixing frame (61) further comprises a guide post (613), a mounting plate (614) and a lower cylinder (615), the lower cylinder (615) is disposed on the mounting plate (614), one end of the guide post (613) is connected to the mounting plate (614), the other end of the guide post passes through the bottom plate (612), and the output end of the lower cylinder (615) is connected to the upper cylinder (622) through a buffer (623).
10. Self-locking rotary clamp according to claim 9, characterised in that one stop post (7) is arranged on one side of each elastic element (5), the length of the stop post (7) being smaller than the length of the elastic element (5) in the free state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124590.XU CN211101664U (en) | 2019-12-02 | 2019-12-02 | Self-locking type rotating clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922124590.XU CN211101664U (en) | 2019-12-02 | 2019-12-02 | Self-locking type rotating clamp |
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| Publication Number | Publication Date |
|---|---|
| CN211101664U true CN211101664U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922124590.XU Active CN211101664U (en) | 2019-12-02 | 2019-12-02 | Self-locking type rotating clamp |
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| CN (1) | CN211101664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732696A (en) * | 2019-12-02 | 2020-01-31 | 上海克来机电自动化工程股份有限公司 | self-locking type rotary clamp |
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2019
- 2019-12-02 CN CN201922124590.XU patent/CN211101664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732696A (en) * | 2019-12-02 | 2020-01-31 | 上海克来机电自动化工程股份有限公司 | self-locking type rotary clamp |
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