CN113732370A - Efficient special fixture for manufacturing semicircular keys and operation method - Google Patents
Efficient special fixture for manufacturing semicircular keys and operation method Download PDFInfo
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- CN113732370A CN113732370A CN202111123291.XA CN202111123291A CN113732370A CN 113732370 A CN113732370 A CN 113732370A CN 202111123291 A CN202111123291 A CN 202111123291A CN 113732370 A CN113732370 A CN 113732370A
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- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 19
- 238000003801 milling Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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Abstract
The invention provides a special fixture for manufacturing a high-efficiency semicircular key and an operation method, wherein a rack is fixed on one side of the top of a bottom plate of the fixture, a bottom supporting seat is arranged on the inner side wall of the middle part of the rack, and a top supporting seat is arranged on the inner side wall of the top of the rack; a special clamp shell is rotatably arranged in the top supporting seat, a workpiece positioning die is fixedly sleeved in the special clamp shell, and the bottom end of the workpiece positioning die is rotatably supported on the bottom supporting seat; the workpiece positioning die is connected with a rotating power device for driving the workpiece positioning die to rotate; the top of the workpiece positioning die is provided with an auxiliary supporting structure; uniformly distributed V-shaped positioning grooves are machined in the workpiece positioning die and are positioned in a section of length in the special fixture shell; the V-shaped positioning groove is matched with the clamping mechanism; the clamping mechanism is matched with a clamping driving mechanism arranged on the special clamp shell to realize the automatic clamping and loosening actions of the workpiece.
Description
Technical Field
The invention relates to a special fixture for manufacturing a high-efficiency semicircular key and an operation method, and belongs to the field of machining equipment.
Background
The key coupling is more and more widely applied in mechanical equipment, aiming at the rapid development of the industry in China at present, the mechanical manufacturing process is higher and higher, the position of a semicircular key in mechanical connection positioning is more and more important, the demand is higher and more, the current semicircular key processing mainly adopts the traditional turning processing technological process, as the outer shape surface of one of the semicircular keys is semicircular, the semicircular key is inconvenient in the process of clamping and positioning the semicircular key, the automatic processing process of the semicircular key is further influenced, the production efficiency is lower, and the requirement of large-batch processing production cannot be met.
Disclosure of Invention
The invention aims to provide a special fixture for manufacturing a high-efficiency semicircular key and an operation method, which can meet the production requirement of a large batch of semicircular keys, have stable and reliable transmission, long service life, convenient maintenance, simple maintenance, easy positioning, easy assembly and disassembly of the fixture body, less auxiliary time, reduced labor intensity of workers, simple operation, high practicability in production and good popularization prospect.
In order to achieve the technical features, the invention is realized as follows: a special fixture for manufacturing a high-efficiency semicircular key comprises a fixture bottom plate, wherein a rack is fixed on one side of the top of the fixture bottom plate, a bottom supporting seat is arranged on the inner side wall of the middle part of the rack, and a top supporting seat is arranged on the inner side wall of the top of the rack; a special fixture shell is rotatably arranged in the top supporting seat, a workpiece positioning die is fixedly sleeved in the special fixture shell, and the bottom end of the workpiece positioning die is rotatably supported on the bottom supporting seat; the workpiece positioning die is connected with a rotary power device for driving the workpiece positioning die to rotate; a workpiece supporting ring for supporting the bottom end of the workpiece is arranged on the workpiece positioning die and below the special fixture shell; an auxiliary supporting structure for supporting the workpiece in an auxiliary manner is arranged at the top of the workpiece positioning die; uniformly distributed V-shaped positioning grooves are machined in the workpiece positioning die and are positioned in a section of length in the special fixture shell; the V-shaped positioning groove is matched with the clamping mechanism and is used for clamping and positioning the semicircular workpiece; the clamping mechanism is matched with a clamping driving mechanism arranged on the special clamp shell to realize the automatic clamping and loosening actions of the workpiece.
The frame adopts a vertical plate structure, and reinforcing rib plates are arranged among the frame, the clamp bottom plate and the bottom supporting seat.
The rotating power device comprises a transmission gear fixed on the workpiece positioning die; in the working process, the transmission gear is in meshed transmission with a driving gear for driving the transmission gear to rotate.
And a saw blade milling cutter used for cutting the semicircular workpiece is arranged on the side edge of the workpiece positioning die and positioned on the upper end surface of the workpiece supporting ring.
And a height H is reserved between the top end face of the workpiece supporting ring and the bottom end face of the special fixture shell, and the value of the height H is larger than the thickness value of the processed semicircular key.
The special clamp shell is rotatably supported on the mounting hole of the top support seat through a bearing; the bottom end of the workpiece positioning die is rotatably supported on the bottom supporting seat through a bearing.
The auxiliary supporting structure comprises a connecting rod fixed at the center of the top end of the workpiece positioning die, the top end of the connecting rod is fixed with the auxiliary workpiece positioning die, and circular hole grooves used for positioning the semicircular workpiece are uniformly distributed and processed on the auxiliary workpiece positioning die.
The clamping mechanism comprises a pressing plate which is correspondingly and slidably arranged in the V-shaped positioning groove, a plurality of convex blocks which are used for being in contact with and pressed tightly against the outer wall of the semicircular workpiece are arranged on the inner side wall of the pressing plate, the top end and the bottom end of the pressing plate are connected with spring pieces, and the spring pieces are arranged in the special clamp shell and always keep the state that the semicircular workpiece is loosened by the pressing plate; the outer side wall of the pressing plate is matched with the clamping driving mechanism; and supporting skirt edges are arranged at the upper tail end and the lower tail end of the V-shaped positioning groove on the workpiece positioning die.
The clamping driving mechanism comprises clamping screws which are uniformly arranged on a special clamp shell through thread transmission, the inner end of each clamping screw is in contact with the outer wall of a pressing plate of the clamping mechanism, a stop block is fixed on the outer end of each clamping screw, the stop blocks are respectively matched with a front stop block and a rear stop block in the rotating process, the front stop blocks are fixed on the inner side wall of the vertical rod, and the vertical rod is fixed in the middle of the front bottom end of the top supporting seat; the rear stop block is fixed on the inner side wall of the frame.
An operation method of a special fixture for manufacturing a high-efficiency semicircular key comprises the following steps:
step 1: uniformly distributing a plurality of semicircular workpieces to be processed through the circular hole grooves of the auxiliary supporting structure, inserting the bottom ends of the semicircular workpieces into the V-shaped positioning grooves of the workpiece positioning die, and enabling the arc surfaces of the semicircular workpieces to be in contact with the two side surfaces of the V-shaped positioning grooves on the workpiece positioning die for positioning; the bottom end of the semicircular workpiece is supported at the top end of the workpiece supporting ring;
step 2: starting a rotating power device, driving the whole workpiece positioning die to rotate through a transmission gear, and simultaneously driving a connecting rod at the top end of the workpiece positioning die and an auxiliary workpiece positioning die to coaxially rotate;
step 3: in the rotating process, when a stop block of the clamping driving mechanism collides with a rear stop block, the stop block rotates to drive the clamping screw to rotate anticlockwise for clamping, under the matching of thread transmission, the inner end of the clamping screw extends out and drives a pressing plate in contact with the clamping screw, and the pressing plate slides in the V-shaped positioning groove to position and clamp the semicircular workpiece;
step 4: after the semi-circular workpiece is clamped, the semi-circular workpiece is milled by a saw blade milling cutter to finish one-time processing, and the semi-circular workpiece with a section of length is cut off to form a semi-circular key finished product;
step 5: in the process that the workpiece positioning die continues to rotate, when the stop block collides with the front stop block, the clamping screw is driven to rotate clockwise, the pressing plate is loosened, the pressing plate is reset after the clamping screw is loosened through the spring piece, the semicircular workpiece can fall under the self weight of the semicircular workpiece, automatic feeding is further realized, the semicircular workpiece is supported on the workpiece support ring, and automatic feeding and cutting of the semicircular workpiece are realized through cyclic reciprocation.
The invention has the following beneficial effects:
1. the clamp can meet the production requirements of a large number of semicircular keys, is stable and reliable in transmission, long in service life, convenient to maintain, simple to maintain, easy to position and assemble and disassemble due to the design of the clamp body, short in auxiliary time, capable of reducing the labor intensity of workers, simple to operate, high in practicability in production and good in popularization prospect.
2. The rotating power device can be used for rotating the workpiece positioning die in the working process, and further drives the plurality of semicircular workpieces to synchronously rotate and convert positions.
3. The saw blade milling cutter adopts a coarse-tooth saw blade milling cutter, and the cutting mode adopts milling, so that the working efficiency is highest, the coarse-tooth cutter has high structural strength, and the chip-containing capacity is good.
4. The auxiliary support structure can be used for effectively positioning and supporting the top of the semicircular workpiece.
5. The clamping mechanism can be used for reliably fixing and clamping the semicircular workpiece on the V-shaped positioning groove, so that the subsequent processing of the semicircular workpiece is ensured.
6. The automatic clamping and loosening of the semicircular workpiece can be realized through the clamping driving mechanism, so that the automatic feeding action in the machining process is realized, and the automatic machining process is finally realized.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a three-dimensional view of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a front view of the present invention.
FIG. 4 is a three-dimensional view of the assembly between the housing of the special fixture and the workpiece positioning die of the present invention.
FIG. 5 is a front sectional view of the assembly between the housing of the special fixture and the workpiece positioning die of the present invention.
In the figure: the special fixture comprises a rack 1, a transmission gear 2, a saw blade milling cutter 3, a special fixture shell 4, an auxiliary workpiece positioning die 5, a connecting rod 6, a stop dog 7, a front stop dog 8, a rear stop dog 9, a semicircular workpiece 10, a workpiece positioning die 11, a bearing 12, a clamping screw 13, a spring piece 14, a pressure plate 15, a workpiece supporting ring 16, a bottom supporting seat 17, a reinforcing rib plate 18, a top supporting seat 19, a circular hole groove 20, a fixture bottom plate 21, a V-shaped positioning groove 22, a convex block 23 and a vertical rod 24.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, a special fixture for manufacturing a high-efficiency woodruff key comprises a fixture bottom plate 21, wherein a rack 1 is fixed on one side of the top of the fixture bottom plate 21, a bottom support seat 17 is arranged on the inner side wall of the middle part of the rack 1, and a top support seat 19 is arranged on the inner side wall of the top of the rack 1; a special fixture shell 4 is rotatably mounted inside the top support seat 19, a workpiece positioning die 11 is fixedly sleeved inside the special fixture shell 4, and the bottom end of the workpiece positioning die 11 is rotatably supported on a bottom support seat 17; the workpiece positioning die 11 is connected with a rotary power device for driving the workpiece positioning die to rotate; a workpiece supporting ring 16 for supporting the bottom end of the workpiece is arranged on the workpiece positioning die 11 and below the special fixture shell 4; an auxiliary supporting structure for supporting the workpiece is arranged at the top of the workpiece positioning die 11; uniformly distributed V-shaped positioning grooves 22 are machined in the workpiece positioning die 11 and are positioned in a section of the special fixture shell 4; the V-shaped positioning groove 22 is matched with the clamping mechanism and is used for clamping and positioning the semicircular workpiece 10; the clamping mechanism is matched with a clamping driving mechanism arranged on the special clamp shell 4 to realize the automatic clamping and loosening actions of the workpiece. The fixture can meet the production requirement of large-batch semicircular keys, is stable and reliable in transmission, long in service life, convenient to maintain, simple to maintain, easy to position and load and unload due to the specific design of the fixture, short in auxiliary time, simple to operate, high in practicability in production and good in popularization prospect, and reduces the labor intensity of workers.
Further, the machine frame 1 adopts a vertical plate structure, and reinforcing rib plates 18 are arranged among the machine frame 1, the clamp bottom plate 21 and the bottom support seat 17. The structural strength and stability of the whole clamp are enhanced by adopting the frame 1.
Further, the rotating power device comprises a transmission gear 2 fixed on the workpiece positioning die 11; in the working process, the transmission gear 2 is in meshing transmission with a driving gear for driving the transmission gear to rotate. The rotating power device can be used for providing rotation of the workpiece positioning die 11 in the working process, and further driving the synchronous rotation and position conversion of the plurality of semicircular workpieces 10.
Further, a blade mill 3 for cutting the semicircular workpiece 10 is disposed on the side of the workpiece positioning die 11 and on the upper end surface of the workpiece supporting ring 16. The saw blade milling cutter 3 adopts a coarse-tooth saw blade milling cutter, and the cutting mode adopts milling, so that the working efficiency is highest, the coarse-tooth cutter has high structural strength, and the chip-containing capacity is good.
Further, a height H is reserved between the top end face of the workpiece supporting ring 16 and the bottom end face of the special fixture shell 4, and the value of H is larger than the thickness value of the processed semicircular key. Through the size matching relation, the cut semicircular key can meet the required thickness size.
Further, the special clamp shell 4 is rotatably supported on the mounting hole of the top support seat 19 through a bearing 12; the bottom end of the workpiece positioning die 11 is rotatably supported on a bottom support base 17 through a bearing. The workpiece positioning die 11 can normally rotate through the bearing support.
Furthermore, the auxiliary supporting structure comprises a connecting rod 6 fixed at the center of the top end of the workpiece positioning die 11, an auxiliary workpiece positioning die 5 is fixed at the top end of the connecting rod 6, and circular hole grooves 20 for positioning the semicircular workpiece 10 are uniformly distributed and processed on the auxiliary workpiece positioning die 5. The auxiliary support structure can be used for effectively positioning and supporting the top of the semicircular workpiece 10.
Further, the clamping mechanism comprises a pressing plate 15 which is correspondingly and slidably arranged in a V-shaped positioning groove 22, a plurality of convex blocks 23 which are used for being in contact with and pressing against the outer wall of the semicircular workpiece 10 are arranged on the inner side wall of the pressing plate 15, the top end and the bottom end of the pressing plate 15 are connected with a spring piece 14, and the spring piece 14 is arranged in the special clamp shell 4 and is always kept in a state that the pressing plate 15 loosens the semicircular workpiece 10; the outer side wall of the pressure plate 15 is matched with a clamping driving mechanism; and supporting skirts 25 are arranged at the upper and lower tail ends of the V-shaped positioning groove 22 on the workpiece positioning die 11. The clamping mechanism can be used for reliably and fixedly clamping the semicircular workpiece 10 on the V-shaped positioning groove 22, so that the subsequent processing is guaranteed. In the working process, the convex block 23 on the pressing plate 15 can be contacted with the straight surface of the semicircular workpiece 10, and the outer circular surface of the semicircular workpiece 10 is contacted and positioned with the two inner side walls of the V-shaped positioning groove 22, so that the clamping reliability is ensured.
Further, the clamping driving mechanism comprises clamping screws 13 which are uniformly arranged on the special clamp shell 4 through thread transmission, the inner end of each clamping screw 13 is in contact with the outer wall of a pressing plate 15 of the clamping mechanism, a stop block 7 is fixed on the outer end of each clamping screw 13, the stop blocks 7 are respectively matched with a front stop block 8 and a rear stop block 9 in the rotating process, the front stop blocks 8 are fixed on the inner side wall of the vertical rod 24, and the vertical rod 24 is fixed in the middle of the front bottom end of the top supporting seat 19; the rear stop block 9 is fixed on the inner side wall of the frame 1. The semi-circular workpiece 10 can be automatically clamped and loosened through the clamping driving mechanism, so that the automatic feeding action in the machining process is realized, and the automatic machining process is finally realized.
Example 2:
an operation method of a special fixture for manufacturing a high-efficiency semicircular key comprises the following steps:
step 1: uniformly distributing a plurality of semicircular workpieces 10 to be processed through a circular hole groove 20 of an auxiliary supporting structure, inserting the bottom ends of the semicircular workpieces into a V-shaped positioning groove 22 of a workpiece positioning die 11, and positioning the arc surfaces of the semicircular workpieces 10 in contact with two side surfaces of the V-shaped positioning groove 22 on the workpiece positioning die 11; the bottom end of the semicircular workpiece 10 will be supported at the top end of the workpiece carrier ring 16;
step 2: starting a rotating power device, driving the whole workpiece positioning die 11 to rotate through the transmission gear 2, and simultaneously driving the connecting rod 6 at the top end of the workpiece positioning die and the auxiliary workpiece positioning die 5 to coaxially rotate;
step 3: in the rotating process, when the stop dog 7 of the clamping driving mechanism collides with the rear stop dog 9, the stop dog 7 rotates to drive the clamping screw 13 to rotate anticlockwise for clamping, under the thread transmission fit, the inner end of the clamping screw 13 extends out and drives the pressing plate 15 in contact with the clamping screw, and the pressing plate 15 slides in the V-shaped positioning groove 22 to position and clamp the semicircular workpiece 10;
step 4: after the semi-circular workpiece 10 is clamped, the semi-circular workpiece 10 is milled by the saw blade milling cutter 3 to finish one-time processing, and the semi-circular workpiece 10 with a section of length is cut off to form a semi-circular key finished product;
step 5: in the process that the workpiece positioning die 11 continues to rotate, when the stop block 7 collides with the front stop block 8, the clamping screw 13 is driven to rotate clockwise, the pressing plate 15 is loosened, the pressing plate 15 is reset after the clamping screw 13 is loosened through the spring piece 14, the semicircular workpiece 10 falls under the self-weight of the semicircular workpiece, automatic feeding is further realized, the semicircular workpiece is supported on the workpiece support ring 16, and automatic feeding and cutting of the semicircular workpiece 10 are realized through cyclic reciprocation.
The working principle of the invention is as follows:
the transmission gear 2 is fixedly connected on the workpiece positioning die 11 to drive the whole fixture body to rotate, the workpiece positioning die 11 is sleeved in the special fixture shell 4, one end of the connecting rod 6 is fixedly connected with the workpiece positioning die 11, the other end of the connecting rod 6 is fixedly connected with the auxiliary workpiece positioning die 5, the workpiece positioning die 11 and the auxiliary workpiece positioning die 5 can coaxially rotate after being connected through the connecting rod 6, a V-shaped positioning groove is formed in the workpiece positioning die 11, a circular hole groove is formed in the auxiliary workpiece positioning die 5, a semicircular workpiece 10 penetrates through the circular hole groove in the auxiliary workpiece positioning die 5 to be inserted into the V-shaped positioning groove of the workpiece positioning die 11, the arc surface of the semicircular workpiece 10 is contacted with two side surfaces of the V-shaped positioning groove in the positioning die 11 to be positioned, the workpiece positioning die 11 is sleeved in the special fixture shell 4, the pressing plate 15 is embedded in the V-shaped positioning groove in the workpiece positioning die 11 to position and clamp the semicircular workpiece 10, and the check block 7 is welded with the clamping screw 13 together, when the whole special clamp body rotates, a stop block 7 on the clamp body collides with a front stop block 8 and a rear stop block 9 which are installed on a machine frame, when the stop block 7 collides with the rear stop block 9, a clamping screw 13 is driven by the stop block 7 to rotate anticlockwise so as to extrude a pressing plate 15, the pressing plate 15 is pressed on a workpiece, and then after the semicircular workpiece 10 is clamped, the semicircular workpiece 10 is washed and cut by a saw blade milling cutter 3 to finish one-time processing, when the stop block 7 collides with the front stop block 8, the clamping screw 13 is driven by the stop block 7 to rotate clockwise so as to be loosened, the pressing plate is reset after the clamping screw 13 is loosened through a spring piece 14 on the edge, the semicircular workpiece 10 can automatically feed due to self weight, and thus, the automatic feeding and cutting of the semicircular workpiece 10 are realized through the cyclic reciprocation.
In addition, the special fixture body can change a clamping system by adjusting the feeding amount of the clamping screw 13, so that the special fixture can process semicircular keys with different specifications.
Claims (10)
1. The utility model provides a special fixture is made to high-efficient semicircle key which characterized in that: the clamp comprises a clamp bottom plate (21), wherein a rack (1) is fixed on one side of the top of the clamp bottom plate (21), a bottom supporting seat (17) is arranged on the inner side wall of the middle part of the rack (1), and a top supporting seat (19) is arranged on the inner side wall of the top of the rack (1); a special clamp shell (4) is rotatably mounted inside the top support seat (19), a workpiece positioning die (11) is fixedly sleeved inside the special clamp shell (4), and the bottom end of the workpiece positioning die (11) is rotatably supported on the bottom support seat (17); the workpiece positioning die (11) is connected with a rotary power device for driving the workpiece positioning die to rotate; a workpiece supporting ring (16) used for supporting the bottom end of the workpiece is arranged on the workpiece positioning die (11) and below the special fixture shell (4); an auxiliary supporting structure for supporting the workpiece in an auxiliary manner is arranged at the top of the workpiece positioning die (11); uniformly distributed V-shaped positioning grooves (22) are machined in the workpiece positioning die (11) and are positioned in the special fixture shell (4) for a section of length; the V-shaped positioning groove (22) is matched with the clamping mechanism and is used for clamping and positioning the semicircular workpiece (10); the clamping mechanism is matched with a clamping driving mechanism arranged on the special clamp shell (4) to realize the automatic clamping and loosening actions of the workpiece.
2. The special fixture for manufacturing the efficient semicircular key according to claim 1, characterized in that: the machine frame (1) adopts a vertical plate structure, and reinforcing rib plates (18) are arranged among the machine frame (1), the clamp bottom plate (21) and the bottom support seat (17).
3. The special fixture for manufacturing the efficient semicircular key according to claim 1, characterized in that: the rotating power device comprises a transmission gear (2) fixed on a workpiece positioning die (11); in the working process, the transmission gear (2) is in meshed transmission with a driving gear for driving the transmission gear to rotate.
4. The special fixture for manufacturing the efficient semicircular key according to claim 1, characterized in that: and a saw blade milling cutter (3) used for cutting the semicircular workpiece (10) is arranged on the side edge of the workpiece positioning die (11) and on the upper end surface of the workpiece supporting ring (16).
5. The special fixture for manufacturing the efficient woodruff key according to claim 4, wherein: and a height H is reserved between the top end surface of the workpiece supporting ring (16) and the bottom end surface of the special fixture shell (4), and the value of the height H is larger than the thickness value of the processed semicircular key.
6. The special fixture for manufacturing the efficient semicircular key according to claim 1, characterized in that: the special clamp shell (4) is rotatably supported on a mounting hole of the top support seat (19) through a bearing (12); the bottom end of the workpiece positioning die (11) is rotatably supported on the bottom supporting seat (17) through a bearing.
7. The special fixture for manufacturing the efficient semicircular key according to claim 1, characterized in that: the auxiliary supporting structure comprises a connecting rod (6) fixed at the center of the top end of a workpiece positioning die (11), an auxiliary workpiece positioning die (5) is fixed at the top end of the connecting rod (6), and circular hole grooves (20) used for positioning the semicircular workpiece (10) are uniformly distributed and processed on the auxiliary workpiece positioning die (5).
8. The special fixture for manufacturing the efficient semicircular key according to claim 1, characterized in that: the clamping mechanism comprises a pressing plate (15) which is correspondingly and slidably arranged in a V-shaped positioning groove (22), a plurality of convex blocks (23) which are used for being in contact with and pressing against the outer wall of the semicircular workpiece (10) are arranged on the inner side wall of the pressing plate (15), the top end and the bottom end of the pressing plate (15) are connected with a spring piece (14), the spring piece (14) is arranged in the special clamp shell (4), and the state that the semicircular workpiece (10) is loosened by the pressing plate (15) is always kept; the outer side wall of the pressure plate (15) is matched with the clamping driving mechanism; and supporting skirts (25) are arranged at the upper and lower tail ends of the workpiece positioning die (11) and positioned in the V-shaped positioning grooves (22).
9. The special fixture for manufacturing the efficient woodruff key according to claim 1 or 8, wherein: the clamping driving mechanism comprises clamping screws (13) which are uniformly arranged on a special clamp shell (4) in a threaded transmission mode, the inner end of each clamping screw (13) is in contact with the outer wall of a pressing plate (15) of the clamping mechanism, a stop block (7) is fixed to the outer end of each clamping screw (13), the stop blocks (7) are respectively matched with a front stop block (8) and a rear stop block (9) in the rotating process, the front stop blocks (8) are fixed on the inner side wall of a vertical rod (24), and the vertical rod (24) is fixed in the middle of the front bottom end of a top supporting seat (19); the rear stop block (9) is fixed on the inner side wall of the rack (1).
10. The operation method of the jig special for manufacturing the high-efficiency woodruff key according to any one of claims 1 to 9, characterized by comprising the steps of:
step 1: uniformly distributing a plurality of semicircular workpieces (10) to be processed through a circular hole groove (20) of an auxiliary supporting structure, inserting the bottom ends of the semicircular workpieces into a V-shaped positioning groove (22) of a workpiece positioning die (11), and enabling the arc surfaces of the semicircular workpieces (10) to be in contact with two side surfaces of the V-shaped positioning groove (22) on the workpiece positioning die (11) for positioning; the bottom end of the semicircular workpiece (10) is supported at the top end of the workpiece supporting ring (16);
step 2: starting a rotating power device, driving the whole workpiece positioning die (11) to rotate through the transmission gear (2), and simultaneously driving the connecting rod (6) at the top end of the workpiece positioning die and the auxiliary workpiece positioning die (5) to coaxially rotate;
step 3: in the rotating process, when a stop block (7) of the clamping driving mechanism collides with a rear stop block (9), the stop block (7) rotates to drive a clamping screw (13) to rotate anticlockwise for clamping, under the matching of thread transmission, the inner end of the clamping screw (13) extends out and drives a pressing plate (15) in contact with the clamping screw, and the pressing plate (15) slides in a V-shaped positioning groove (22) to position and clamp the semicircular workpiece (10);
step 4: after the semi-circular workpiece (10) is clamped, the semi-circular workpiece (10) is milled by the saw blade milling cutter (3) to finish one-time processing, and the semi-circular workpiece (10) with a section of length is cut off to form a semi-circular key finished product;
step 5: in the process that the workpiece positioning die (11) continues to rotate, when the stop block (7) collides with the front stop block (8), the clamping screw (13) is driven to rotate clockwise, the pressing plate (15) is loosened, the pressing plate (15) is reset after the clamping screw (13) is loosened through the spring piece (14), the semicircular workpiece (10) falls under the self weight, automatic feeding is further realized, the semicircular workpiece is supported on the workpiece support ring (16), and automatic feeding and cutting of the semicircular workpiece (10) are realized through cyclic reciprocation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123291.XA CN113732370B (en) | 2021-09-24 | 2021-09-24 | Efficient special fixture for manufacturing semicircular keys and operation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123291.XA CN113732370B (en) | 2021-09-24 | 2021-09-24 | Efficient special fixture for manufacturing semicircular keys and operation method |
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| Publication Number | Publication Date |
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| CN113732370A true CN113732370A (en) | 2021-12-03 |
| CN113732370B CN113732370B (en) | 2022-06-03 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3346689A1 (en) * | 1983-12-23 | 1985-07-04 | Aug. Bremicker Söhne KG, 5802 Wetter | Key-milling machine |
| RU1799695C (en) * | 1990-10-09 | 1993-03-07 | Луганский станкостроительный завод им.В.И.Ленина | Mill machine for machining inclined slots on semicircular key rods |
| JPH0719210A (en) * | 1993-07-05 | 1995-01-20 | Nippondenso Co Ltd | Woodruff key |
| CN103586718A (en) * | 2013-11-20 | 2014-02-19 | 天津市卡尔斯阀门有限公司 | Multipurpose woodruff key milling fixture |
| CN203579120U (en) * | 2013-10-29 | 2014-05-07 | 青岛德盛机械制造有限公司 | Woodruff key push mounting device |
| CN204094501U (en) * | 2014-09-10 | 2015-01-14 | 浙江裕泰汽车配件有限公司 | A kind of hand-held woodruff key chamfering clamping device |
| CN204295024U (en) * | 2014-12-05 | 2015-04-29 | 日照市时正锻压有限公司 | Horizontal milling machine |
| CN204639710U (en) * | 2015-03-31 | 2015-09-16 | 重庆市云阳曲轴有限责任公司 | Axial workpiece Woodruff key slots and keyways milling machine many groups special fixture |
| CN105414926A (en) * | 2015-12-22 | 2016-03-23 | 浙江巨力电机成套设备有限公司 | Automatic assembling device for woodruff key |
| CN207223023U (en) * | 2017-08-22 | 2018-04-13 | 重庆市云阳曲轴有限责任公司 | Milling Woodruff key slots and keyways frock |
| CN109623448A (en) * | 2019-02-28 | 2019-04-16 | 南京灵雀智能制造有限公司 | A kind of circle hardware shell special fixture and its working method |
| CN208992226U (en) * | 2018-10-23 | 2019-06-18 | 江门精之度机械设备有限公司 | A kind of machining center special tooling |
| CN211071962U (en) * | 2019-08-20 | 2020-07-24 | 天津泰和兰德石油机械有限公司 | Positioning and clamping device for milling flat key semicircle |
| CN212240043U (en) * | 2020-03-25 | 2020-12-29 | 宣城恒皓汽车零部件有限公司 | Semi-circle key lathe clamp |
| CN213857071U (en) * | 2020-12-04 | 2021-08-03 | 西安捷成优禾智能科技有限公司 | Inner hole turning clamp for thin-wall workpiece |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3346689A1 (en) * | 1983-12-23 | 1985-07-04 | Aug. Bremicker Söhne KG, 5802 Wetter | Key-milling machine |
| RU1799695C (en) * | 1990-10-09 | 1993-03-07 | Луганский станкостроительный завод им.В.И.Ленина | Mill machine for machining inclined slots on semicircular key rods |
| JPH0719210A (en) * | 1993-07-05 | 1995-01-20 | Nippondenso Co Ltd | Woodruff key |
| CN203579120U (en) * | 2013-10-29 | 2014-05-07 | 青岛德盛机械制造有限公司 | Woodruff key push mounting device |
| CN103586718A (en) * | 2013-11-20 | 2014-02-19 | 天津市卡尔斯阀门有限公司 | Multipurpose woodruff key milling fixture |
| CN204094501U (en) * | 2014-09-10 | 2015-01-14 | 浙江裕泰汽车配件有限公司 | A kind of hand-held woodruff key chamfering clamping device |
| CN204295024U (en) * | 2014-12-05 | 2015-04-29 | 日照市时正锻压有限公司 | Horizontal milling machine |
| CN204639710U (en) * | 2015-03-31 | 2015-09-16 | 重庆市云阳曲轴有限责任公司 | Axial workpiece Woodruff key slots and keyways milling machine many groups special fixture |
| CN105414926A (en) * | 2015-12-22 | 2016-03-23 | 浙江巨力电机成套设备有限公司 | Automatic assembling device for woodruff key |
| CN207223023U (en) * | 2017-08-22 | 2018-04-13 | 重庆市云阳曲轴有限责任公司 | Milling Woodruff key slots and keyways frock |
| CN208992226U (en) * | 2018-10-23 | 2019-06-18 | 江门精之度机械设备有限公司 | A kind of machining center special tooling |
| CN109623448A (en) * | 2019-02-28 | 2019-04-16 | 南京灵雀智能制造有限公司 | A kind of circle hardware shell special fixture and its working method |
| CN211071962U (en) * | 2019-08-20 | 2020-07-24 | 天津泰和兰德石油机械有限公司 | Positioning and clamping device for milling flat key semicircle |
| CN212240043U (en) * | 2020-03-25 | 2020-12-29 | 宣城恒皓汽车零部件有限公司 | Semi-circle key lathe clamp |
| CN213857071U (en) * | 2020-12-04 | 2021-08-03 | 西安捷成优禾智能科技有限公司 | Inner hole turning clamp for thin-wall workpiece |
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|---|---|
| CN113732370B (en) | 2022-06-03 |
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Denomination of invention: An Efficient Fixture and Operation Method for Manufacturing Half Round Keys Granted publication date: 20220603 Pledgee: Bank of China Limited by Share Ltd. Three Gorges Branch Pledgor: YICHANG ZHONGNAN PRECISION STEEL PIPE CO.,LTD. Registration number: Y2024980001664 |
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