CN213560910U - Bolt self-locking mechanism - Google Patents
Bolt self-locking mechanism Download PDFInfo
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- CN213560910U CN213560910U CN202022317674.8U CN202022317674U CN213560910U CN 213560910 U CN213560910 U CN 213560910U CN 202022317674 U CN202022317674 U CN 202022317674U CN 213560910 U CN213560910 U CN 213560910U
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Abstract
The utility model discloses a bolt self-locking mechanism, which relates to the field of workpiece bolt positioning technology and comprises a locking sleeve, a cylinder, a bolt shaft, a base and steel balls; the locking sleeve is connected with the cylinder through a support, a spring is clamped in the middle of a pin shaft arranged in the locking sleeve, the pin shaft moves downwards under the driving of the cylinder, the pin shaft is inserted into the base and extends out of the lower hole, the locking sleeve is sleeved outside the base, and the pin shaft is locked through a steel ball embedded in the base to complete self-locking; the mechanism has the advantages of simple structure, strong practicability, small occupied space, convenient installation, debugging and maintenance and cost saving.
Description
Technical Field
The utility model relates to a work piece bolt location art field specifically is a bolt self-locking mechanism.
Background
The work piece is at first will carry out the heart to the locating hole and the guide sleeve hole of work piece before the pressure equipment locating pin, this just needs bolt mechanism to realize, and the bolt can receive the reaction force ejecting with the bolt that has inserted at the male in-process, in order to offset the reaction force of bolt insertion in-process, just need bolt mechanism to have self-locking function just can realize, traditional bolt self-locking structure probably is that a cylinder accomplishes the bolt action, self-locking function is accomplished to another cylinder, this kind of body structure occupation space is big, the design is complicated, it is with high costs, inconvenient installation maintenance and in the place of equipment structure space restriction, it is very difficult to use, some scene can't use even.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bolt self-locking mechanism to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bolt self-locking mechanism, includes the lock sleeve, the lock sleeve is vertical cylindrical structure and the top is fixed with the horizontally support, the support open have with the coaxial support round hole of lock sleeve, the support extends the cylinder is installed to one side of lock sleeve, the vertical installation of cylinder, the end of the piston rod of cylinder is fixed in the lower surface of support, install the bolt axle in the lock sleeve, the bolt axle inserts in the base of cylinder, the lock sleeve cover is in the base outside, the base is close to top embedding steel ball.
Preferably, the inner upper part of the locking sleeve is a bushing mounting part with the inner diameter smaller than that of the circular hole of the support, an oilless bushing I is mounted in the bushing mounting part, and the top of the oilless bushing I is flush with that of the bushing mounting part; a circular hole blocking wall with the inner diameter equal to that of the oilless bushing is arranged at the lower end of the bushing mounting part on the inner side of the locking sleeve, and a spring with the inner diameter larger than that of the circular hole blocking wall is mounted on the lower surface of the circular hole blocking wall; the lower part of the circular hole blocking wall of the locking sleeve is a first cylindrical part with the inner diameter larger than the diameter of the circular hole of the support, the lower part of the first cylindrical part is a second cylindrical part with the inner diameter larger than the inner diameter of the first cylindrical part, and a chamfer angle is arranged between the first cylindrical part and the second cylindrical part.
Preferably, the bolt axle includes that the coaxial intermediate position from lock shaft body portion is the same with the diameter and is less than the cylindrical upper shaft body and the lower shaft body of an oilless bush internal diameter, the bottom of lower shaft body is provided with the terminal conical pin head that is, the upper portion of self-locking shaft body portion sets up the radial convex separation blade portion of annular, and its diameter is greater than the internal diameter of bush installation department and is less than the internal diameter of drum portion one, the middle department outer wall of self-locking shaft body portion is provided with annular recess, the lower part of recess become conical with the lower shaft body is fixed.
Further, the upper shaft body sequentially penetrates through the spring, the circular hole blocking wall and the oil-free bushing I and then is relatively fixed with the locking sleeve through a gasket and a bolt; the upper surface of the blocking piece portion is pressed against the lower end of the spring, and the lower end of the lower shaft body exceeds the lower end of the locking sleeve.
Preferably, the base is the cylinder and the external diameter is less than the internal diameter of cylinder portion one, the internal diameter with bush installation department internal diameter equals, internally mounted has oilless bush two, the top of oilless bush two is less than the top of base, open the bottom of base have with the round hole keeps off the base round hole that the wall internal diameter equals, the position embedding that is close to the top of base has the steel ball.
Preferably, the diameter of the steel balls is larger than the wall thickness of the base, the number of the steel balls is 2-6, and the steel balls are embedded into the upper part of the base in an annular array distribution mode.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to a bolt self-locking mechanism, which is designed to be driven by a cylinder, and realizes two functions of bolt and self-locking;
2. the diameter of the cylinder is very small, and the space occupation is small;
3. the structure is simple, the practicability is strong, and the installation, debugging and maintenance are convenient;
4. the used parts are few, and the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view.
Fig. 3 is a front view.
Fig. 4 is a view of fig. 3A-a.
Fig. 5 is an enlarged view of fig. 4A.
In the figure: 1. the locking device comprises a locking sleeve, 11, a support, 12, a support round hole, 13, a bushing mounting part, 14, a first oilless bushing, 15, a round hole blocking wall, 16, a spring, 17, a first cylindrical part, 18, a second cylindrical part, 19, a chamfer, 2, a cylinder, 21, a piston rod, 3, a bolt shaft, 31, a self-locking shaft part, 311, a blocking part, 32, an upper shaft body, 33, a lower shaft body, 34, a pin head, 35, a gasket, 36, a bolt, 37, a groove, 4, a base, 41, a second oilless bushing, 42, a base round hole, 5 and steel balls.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention is described below clearly and completely with reference to the accompanying drawings and the specific embodiments.
Referring to fig. 1-5, fig. 1 is a schematic structural view of the present invention; FIG. 2 is a top view; FIG. 3 is a front view; FIG. 4 is a view of FIG. 3A-A; fig. 5 is an enlarged view of fig. 4A.
The utility model provides a bolt self-locking mechanism, including lock sleeve 1, cylinder 2, bolt axle 3, base 4, steel ball 5 constitution.
The locking sleeve 1 is of a vertical cylindrical structure, a horizontal support 11 is fixed to the top of the locking sleeve 1, a support round hole 12 which is in a diameter phi A and coaxial with the locking sleeve 1 is formed in the support 11, the support 11 extends out of one side of the locking sleeve 1, a cylinder 2 is installed on one side of the locking sleeve 1, the cylinder 2 is vertically installed, and the tail end of a piston rod 21 of the cylinder 2 is fixed to the lower surface of the support 11.
The inner upper part of the locking sleeve 1 is a bushing mounting part 13 with the inner diameter smaller than that of the bracket round hole 12, an oilless bushing I14 is mounted in the bushing mounting part 13, and the top of the oilless bushing I14 is flush with that of the bushing mounting part 13; a circular hole blocking wall 15 with the inner diameter equal to that of the first oilless bushing 14 is arranged at the lower end of the bushing mounting part 13 on the inner side of the locking sleeve 1, the top surface of the circular hole blocking wall 15 is used for blocking the first oilless bushing 14 from sliding downwards, and a spring 16 with the inner diameter larger than that of the circular hole blocking wall 15 is mounted on the lower surface of the circular hole blocking wall 15; the locking sleeve 1 is characterized in that the lower part of the circular hole blocking wall 15 is a first cylindrical part 17 with the inner diameter larger than the diameter of the circular hole 12 of the support, the lower part of the first cylindrical part 17 is a second cylindrical part 18 with the inner diameter larger than the inner diameter of the first cylindrical part 17, and a chamfer 19 is arranged between the first cylindrical part 17 and the second cylindrical part 18.
A bolt shaft 3 is installed in the locking sleeve 1, the bolt shaft 3 comprises a self-locking shaft body 31 in the middle position, and a cylindrical upper shaft body 32 and a cylindrical lower shaft body 33 which have the same diameter and are smaller than the inner diameter of the first oil-free bushing 14, a pin head 34 with a conical tail end is arranged at the bottom end of the lower shaft body 33, and the upper shaft body 32 sequentially penetrates through the spring 16, the circular hole blocking wall 15 and the first oil-free bushing 14 and then is relatively fixed with the locking sleeve 1 through a gasket 35 and a bolt 36; the upper portion of self-locking shaft body 31 sets up annular radial convex separation blade portion 311, and its diameter is greater than the internal diameter of bush installation department 13 just is less than the internal diameter of cylinder portion one, the upper surface of separation blade portion 311 is used for the top spring 16's lower extreme, and the lower surface is used for supporting the top at base 4, prevents the bolt excessive motion downwards, the department outer wall is provided with annular recess 37 in the middle of self-locking shaft body 31, the lower part of recess 37 become conical with lower shaft body 33 is fixed, the lower extreme of lower shaft body 33 surpasss the lower extreme of lock sleeve 1.
When the locking device is used, the bolt shaft 1 and the bolt shaft 3 penetrate through the spring 16, the circular hole blocking wall 15 and the oilless bushing I14 and are fixed relative to the locking sleeve 1 through the gasket 35 and the bolt 36, and the lower end of the bolt shaft is leaked out of the lower end of the locking sleeve 1;
2. the cylinder 2 acts to drive the locking sleeve 1 to move downwards, the latch shaft 2 moves downwards along with the latch shaft, the pin head 34 at the lower end of the latch shaft is inserted into the base 4 and then is inserted into the oilless bushing II 41, and the latch shaft continues to move downwards and extends out of the circular hole 42 of the base under the driving of the cylinder until the lower surface of the baffle part 311 abuts against the top of the base 4;
3. the cylinder 2 continues to act to drive the locking sleeve 1 to continue to move downwards, the spring 16 is compressed, the locking sleeve 1 continues to move downwards, and then the ball 4 is clamped into the groove 37 of the latch shaft 2 through the chamfer 19 of the locking sleeve 1, so that the latch shaft 2 is locked;
4. after the bolt shaft 2 extends out of the base 4 and is self-locked, the end part of the bolt shaft 2, namely the pin head 34, extends out of the lower plane of the base 4, then the whole mechanism descends, the exposed pin head 34 is inserted into a hole of a workpiece to correct the workpiece, the bolt shaft 2 aims to center a workpiece hole and a guide sleeve hole, then a positioning pin is sent into the guide sleeve hole to be pressed, if the workpiece hole and the guide sleeve hole deviate, the pin head 34 can be pressed to deviate or can not be pressed into the guide sleeve hole, the bolt is required to center the workpiece hole and the guide sleeve hole firstly, in the centering process, if the workpiece hole and the guide sleeve hole deviate greatly, the bolt mechanism can receive upward reaction force in the correcting process, the reaction force in the two directions is far greater than the thrust of an air cylinder, and the bolt mechanism is required to have a self-locking function and cannot be jacked up by.
The utility model relates to a bolt self-locking mechanism, the design is driven by a cylinder, realizes that the bolt adds two functions of self-locking, and the cylinder diameter is very small, and the space occupies for a short time, uses a cylinder to accomplish the bolt action relative to traditional bolt self-locking mechanism, and another cylinder accomplishes the self-locking function, and this kind of split structure occupies for a long time, and the design is complicated, and the cost is big, inconvenient installation and maintenance's defect, the utility model discloses simple structure, the practicality is strong, and the space occupies for a short time, conveniently installs debugging and maintenance, practices thrift the cost; at present the utility model discloses at customer on-the-spot normal production, steady operation, through the practical application inspection, satisfy the operation requirement.
While embodiments of the invention have been illustrated and described, it is to be understood that the embodiments described are only some embodiments of the invention and not all embodiments. Based on the embodiments of the present invention, it can be understood to those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and variations to the embodiments without any creative work without departing from the principles and spirit of the present invention belong to the protection scope of the present invention.
Claims (6)
1. A bolt self-locking mechanism is characterized in that: including lock sleeve (1), lock sleeve (1) is vertical cylindrical structure and top is fixed with horizontally support (11), support (11) open have with lock sleeve (1) coaxial support round hole (12), support (11) extend cylinder (2) are installed to one side of lock sleeve (1), the vertical installation of cylinder (2), the end of piston rod (21) of cylinder (2) is fixed in the lower surface of support (11), install bolt axle (3) in lock sleeve (1), in inserting cylindrical base (4) bolt axle (3), lock sleeve (1) cover is in the base (4) outside, base (4) are close to top embedding steel ball (5).
2. The latch self-locking mechanism according to claim 1, wherein: the inner upper part of the locking sleeve (1) is a bushing mounting part (13) with the inner diameter smaller than that of the support round hole (12), an oil-free bushing I (14) is mounted in the bushing mounting part (13), and the top of the oil-free bushing I (14) is flush with that of the bushing mounting part (13); a circular hole blocking wall (15) with the inner diameter equal to that of the oil-free bushing I (14) is arranged at the lower end of the bushing mounting part (13) on the inner side of the locking sleeve (1), and a spring (16) with the inner diameter larger than that of the circular hole blocking wall (15) is mounted on the lower surface of the circular hole blocking wall (15); the locking sleeve (1) is arranged on the lower portion of the circular hole blocking wall (15) and is a first cylindrical portion (17) with the inner diameter larger than the diameter of the circular hole (12) of the support, the lower portion of the first cylindrical portion (17) is a second cylindrical portion (18) with the inner diameter larger than the inner diameter of the first cylindrical portion (17), and a chamfer (19) is arranged between the first cylindrical portion (17) and the second cylindrical portion (18).
3. The latch self-locking mechanism according to claim 2, wherein: bolt axle (3) including coaxial intermediate position from lock shaft body (31) and diameter the same and be less than do not have cylindrical upper shaft body (32) and lower shaft body (33) of oil bushing (14) internal diameter, the bottom of lower shaft body (33) is provided with end and is conical round pin head (34), the upper portion of locking shaft body (31) sets up annular radial convex fender portion (311), and its diameter is greater than the internal diameter of bush installation department (13) and is less than the internal diameter of drum portion, the middle department outer wall of locking shaft body (31) is provided with annular recess (37), the lower part of recess (37) be conical with lower shaft body (33) are fixed.
4. The latch self-locking mechanism according to claim 3, wherein: the upper shaft body (32) sequentially penetrates through the spring (16), the circular hole blocking wall (15) and the oil-free bushing I (14) and then is relatively fixed with the locking sleeve (1) through a gasket (35) and a bolt (36); the upper surface of the baffle part (311) is pressed against the lower end of the spring (16), and the lower end of the lower shaft body (33) exceeds the lower end of the locking sleeve (1).
5. The latch self-locking mechanism according to claim 4, wherein: base (4) are the cylinder and the external diameter is less than the internal diameter of barrel portion (17), the internal diameter with bush installation department (13) internal diameter equals, and internally mounted has oilless bush two (41), the top of oilless bush two (41) is less than the top of base (4), open the bottom of base (4) have with base round hole (42) that the round hole fender wall (15) internal diameter equals, the position embedding that is close to the top of base (4) has steel ball (5).
6. The latch self-locking mechanism according to claim 5, wherein: the diameter of the steel balls (5) is larger than the wall thickness of the base (4), the number of the steel balls is 2-6, and the steel balls are distributed and embedded into the upper part of the base (4) in an annular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022317674.8U CN213560910U (en) | 2020-10-19 | 2020-10-19 | Bolt self-locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022317674.8U CN213560910U (en) | 2020-10-19 | 2020-10-19 | Bolt self-locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213560910U true CN213560910U (en) | 2021-06-29 |
Family
ID=76524880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022317674.8U Active CN213560910U (en) | 2020-10-19 | 2020-10-19 | Bolt self-locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213560910U (en) |
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2020
- 2020-10-19 CN CN202022317674.8U patent/CN213560910U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211201 Address after: 518110 101, building C, huahaotai Industrial Zone, No. 12, Longguan Road, Yucui community, Longhua street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Haosen intelligent equipment (Shenzhen) Co.,Ltd. Address before: 116036 Yingchengzi Industrial Park, Ganjingzi District, Dalian City, Liaoning Province Patentee before: DALIAN HAOSEN JINRI AUTOMATION CO.,LTD. |
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| TR01 | Transfer of patent right |