CN219074916U - Internal stay positioning fixture - Google Patents
Internal stay positioning fixture Download PDFInfo
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- CN219074916U CN219074916U CN202320262596.7U CN202320262596U CN219074916U CN 219074916 U CN219074916 U CN 219074916U CN 202320262596 U CN202320262596 U CN 202320262596U CN 219074916 U CN219074916 U CN 219074916U
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Abstract
The utility model belongs to the technical field of auxiliary equipment for machining mechanical parts, and particularly relates to an internal stay positioning clamp. Comprises a supporting seat, an internal thread sliding sleeve, a sliding sleeve compression bar, an adjusting nut, a connecting rod, a tensioning piece and an extrusion block; the supporting seat is fixedly arranged on the equipment processing table, the internal thread sliding sleeve is suspended in the double thread sleeve and can move up and down, the adjusting nut is sleeved on the double thread sleeve, and the tensioning piece comprises an annular positioning part, a supporting sleeve arranged on the upper side of the annular positioning part and an external thread connecting sleeve arranged on the lower side of the annular positioning part; the internal stay positioning fixture of this application compact structure is stable, and clamping fixed mode is simple quick, and can not directly take place the contact to work piece outer wall processing district in the dismouting process, improves clamping speed in the time of can effectively guaranteeing the clamping effect.
Description
Technical Field
The utility model belongs to the technical field of auxiliary equipment for machining mechanical parts, and particularly relates to an internal stay positioning clamp.
Background
In the processing process of a part of cylindrical or tubular workpiece, the workpiece is required to be fixed and clamped in a mode of positioning an inner hole so as to facilitate the processing of the end part and the outer wall of the workpiece, and the common mode is a scheme that various pin shafts are matched with screw nuts to compress and position, but when the scheme clamps the workpiece, the structure such as a screw, a nut and the like is required to be disassembled firstly, the structure such as the screw nut and the like is required to be screwed down after the workpiece is fixed on a supporting structure such as an expansion sleeve and the like, the operation is troublesome, the efficiency is lower, the screw nut is required to be disassembled and assembled repeatedly in the disassembly process, and the problems of easy loss and falling of parts and the like are easy to occur,
disclosure of Invention
The utility model aims to provide the internal stay positioning clamp which is simple and quick in clamping and fixing mode, good in clamping effect and high in dismounting speed.
In order to achieve the above purpose, the present utility model adopts the following technical scheme.
An internal stay positioning fixture comprises a supporting seat 1, an internal thread sliding sleeve 2, a sliding sleeve compression bar 3, an adjusting nut 4, a connecting rod 5, a tensioning piece 6 and an extrusion block 7;
the supporting seat 1 is fixedly arranged on an equipment processing table, the supporting seat 1 comprises a supporting table 10 at the bottom and a double-thread sleeve 11 positioned at the top of the supporting table 10, threads are respectively arranged on the inner wall and the outer wall of the double-thread sleeve 11, a strip-shaped clearance hole 11a is arranged on the barrel body of the double-thread sleeve 11, and the strip-shaped clearance hole 11a extends along the axis direction of the double-thread sleeve and penetrates through the axis and then penetrates out from the other side;
the internal thread sliding sleeve 2 is suspended in the inner cavity of the double thread sleeve 11 in a vertically movable manner, a through hole is formed in the lower end of the internal thread sliding sleeve 2, and the sliding sleeve compression bar 3 is inserted into and passes through the strip-shaped clearance hole 11a and then passes out of the other side of the strip-shaped clearance hole 11 a; an inner cavity of the internal thread sliding sleeve 2 is provided with an internal thread;
the adjusting nut 4 is sleeved on the double-threaded sleeve 11, the threads of the adjusting nut 4 are matched with the threads on the double-threaded sleeve 11, and the bottom of the adjusting nut 4 abuts against the sliding sleeve compression bar 3;
the tensioning piece 6 comprises an annular positioning part 60, a supporting sleeve 61 arranged on the upper side of the annular positioning part 60 and an external thread connecting sleeve 62 arranged on the lower side of the annular positioning part 60;
the upper end opening of the supporting sleeve 61 is provided with a cone opening, and the outer wall of the supporting sleeve 61 is provided with a groove;
the external thread connecting sleeve 62 is in matched connection with the internal thread of the double thread sleeve 11;
the bottom of the extrusion block 7 is provided with a conical extrusion part 70, and the diameter of the conical bottom of the conical extrusion part 70 is not smaller than the inner diameter of the conical opening at the upper end of the supporting sleeve 61; the bottom of the tapered pressing part 70 is provided with a screw hole;
external threads are arranged at two ends of the connecting rod 5, the upper end of the connecting rod 5 is screwed into a screw hole at the bottom of the conical extrusion part 70, and the lower end of the connecting rod 5 is screwed into the internal thread sliding sleeve 2.
In a further development or preferred embodiment of the aforementioned internal stay positioning clamp, the outer wall of the adjusting nut 4 is provided with an operating lever 40.
In a further improved or preferred embodiment of the foregoing inner support positioning fixture, a plurality of slots 61a are provided on the outer wall of the support sleeve 61, and the slots are uniformly arranged on the support sleeve in an annular array; the slot 61a is hollowed out downwardly from the top of the support sleeve 61.
In a further improved or preferred embodiment of the foregoing internal support positioning fixture, the opening of the double-threaded sleeve 11 is tapered, and a cone structure is provided at the connection portion between the annular positioning portion 60 and the external thread connecting sleeve 62, and the cone structure is engaged with the opening of the double-threaded sleeve 11.
The beneficial effects are that:
the internal stay positioning fixture of this application compact structure is stable, and clamping fixed mode is simple quick, and can not directly take place the contact to work piece outer wall processing district in the dismouting process, improves clamping speed in the time of can effectively guaranteeing the clamping effect.
Drawings
FIG. 1 is a front view of an inner support positioning fixture structure;
FIG. 2 is a cross-sectional view of the internal stay localization fixture structure;
FIG. 3 is an assembly view of an inner support positioning fixture structure;
wherein the reference numerals include:
the device comprises a supporting seat 1, a supporting table 10, a double-thread sleeve 11, a strip-shaped clearance hole 11a, an internal thread sliding sleeve 2, a sliding sleeve pressing rod 3, an adjusting nut 4, an operating rod 40, a connecting rod 5, a tensioning piece 6, an annular positioning part 60, a supporting sleeve 61, a slot 61a, an external thread connecting sleeve 62, a pressing block 7 and a conical pressing part 70.
Detailed Description
The present utility model will be described in detail with reference to specific examples.
The inner support positioning clamp is mainly used for various inner hole positioning modes, and is used for clamping and fixing workpieces such as cylinders, shafts and the like in the machining process when the end parts or the outer walls are required to be machined, so that the workpieces can be kept fixed in relative positions after being clamped.
As shown in fig. 1, the structure of the internal stay positioning fixture mainly comprises a supporting seat 1, an internal thread sliding sleeve 2, a sliding sleeve compression bar 3, an adjusting nut 4, a connecting rod 5, a tensioning piece 6 and an extrusion block 7;
the supporting seat 1 is fixedly arranged on the equipment processing table, the supporting seat 1 comprises a supporting table 10 at the bottom and a double-thread sleeve 11 positioned at the top of the supporting table 10, threads are respectively arranged on the inner wall and the outer wall of the double-thread sleeve 11, a strip-shaped clearance hole 11a is arranged on the barrel body of the double-thread sleeve 11, and the strip-shaped clearance hole 11a extends along the axis direction of the double-thread sleeve and penetrates out from the other side after penetrating through the axis;
the supporting seat 1 is mainly used for supporting and positioning the fixture, and is used as a connecting structure with equipment, a machine tool or other processing platforms, and in the actual use process, according to the actual fixing requirement, a connecting hole groove structure may need to be arranged on the supporting seat 1 or directly fixed on the structures such as the processing platforms or the supporting seats.
In particular, with respect to the assembly and maintenance requirements, it is possible to provide the stationary base 9 alone on the equipment or processing table, the stationary base 9 and the support 1 being designed in a removable manner, for example in figures 2, 3,
the fixed base 9 is provided with a protruding connecting part, the bottom of the supporting seat 1 is correspondingly provided with a jogged groove, the fixed base 9 and the supporting seat 1 are spliced, and then quick assembly and fixation are realized. So that positioning fixtures with different sizes and models can be used when needed, and the processing treatment of workpieces with different sizes in the same batch can be satisfied.
The internal thread sliding sleeve 2 is suspended in the inner cavity of the double thread sleeve 11 in a vertically movable manner, a through hole is formed in the lower end of the internal thread sliding sleeve 2, and the sliding sleeve compression bar 3 penetrates out of the other side of the strip-shaped clearance hole 11a after being inserted into and passing through the strip-shaped clearance hole 11 a; an inner cavity of the internal thread sliding sleeve 2 is provided with an internal thread;
the adjusting nut 4 is sleeved on the double-threaded sleeve 11, the threads of the adjusting nut 4 are matched with the threads on the double-threaded sleeve 11, and the bottom of the adjusting nut 4 abuts against the sliding sleeve compression bar 3;
the tensioning piece 6 comprises an annular positioning part 60, a supporting sleeve 61 arranged on the upper side of the annular positioning part 60 and an external thread connecting sleeve 62 arranged on the lower side of the annular positioning part 60;
the upper end opening of the supporting sleeve 61 is provided with a cone opening, and the outer wall of the supporting sleeve 61 is provided with a groove; the grooving structure is matched with the supporting sleeve to be used for supporting a workpiece, and in order to ensure that the stress in all directions is uniform after clamping, a plurality of grooving 61a are arranged on the outer wall of the supporting sleeve 61, and the grooving is uniformly arranged on the supporting sleeve in an annular array; a slot 61a is dug downwardly from the top of the support sleeve 61.
The external thread connecting sleeve 62 is in matched connection with the internal thread of the double thread sleeve 11;
the bottom of the extrusion block 7 is provided with a conical extrusion part 70, and the diameter of the conical bottom of the conical extrusion part 70 is not smaller than the inner diameter of the conical opening at the upper end of the supporting sleeve 61; the bottom of the tapered pressing part 70 is provided with a screw hole;
external threads are arranged at two ends of the connecting rod 5, the upper end of the connecting rod 5 is screwed into a screw hole at the bottom of the conical extrusion part 70, and the lower end of the connecting rod 5 is screwed into the internal thread sliding sleeve 2.
In the specific use process, the workpiece is sleeved on the supporting sleeve 61 firstly, then the adjusting nut 4 is rotated to enable the workpiece to move downwards, the internal thread sliding sleeve 2 is extruded and pushed to move downwards, the connecting rod 5 is used for driving the extrusion block 7 to move downwards, the supporting sleeve 61 is stretched and spread, the workpiece is further fixed so as to be convenient to process, and after the processing is finished, the adjusting nut is rotated reversely, so that the workpiece is detached after the supporting sleeve is detached from the force.
In order to increase the adjustment speed and save effort and time, an operating lever 40 is provided on the outer wall of the adjustment nut 4.
In particular, in order to ensure that each cylinder structure can be kept coaxial and consistent during the assembly process, so as to improve the assembly efficiency and simplify the difficulty of alignment and debugging, in this embodiment, the opening of the double-threaded sleeve 11 is tapered, and the connection portion between the annular positioning portion 60 and the external thread connecting sleeve 62 is provided with a tapered structure, and the tapered structure is matched with the opening of the double-threaded sleeve 11.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (4)
1. An internal stay positioning fixture is characterized by comprising a supporting seat (1), an internal thread sliding sleeve (2), a sliding sleeve pressing rod (3), an adjusting nut (4), a connecting rod (5), a tensioning piece (6) and an extrusion block (7);
the supporting seat (1) is fixedly arranged on the equipment processing table, the supporting seat (1) comprises a supporting table (10) at the bottom and a double-thread sleeve (11) positioned at the top of the supporting table (10), threads are respectively arranged on the inner wall and the outer wall of the double-thread sleeve (11), a strip-shaped clearance hole (11 a) is formed in the barrel body of the double-thread sleeve (11), and the strip-shaped clearance hole (11 a) extends along the axis direction of the double-thread sleeve and penetrates through the axis and then penetrates out from the other side;
the internal thread sliding sleeve (2) can move up and down and is suspended in the inner cavity of the double thread sleeve (11), a through hole is formed in the lower end of the internal thread sliding sleeve (2), and the sliding sleeve compression bar (3) is inserted into the strip-shaped clearance hole (11 a) and penetrates through the through hole and then penetrates out of the other side of the strip-shaped clearance hole (11 a); an inner cavity of the internal thread sliding sleeve (2) is provided with an internal thread;
the adjusting nut (4) is sleeved on the double-threaded sleeve (11), threads of the adjusting nut (4) are matched with threads on the double-threaded sleeve (11), and the bottom of the adjusting nut (4) is propped against the sliding sleeve compression bar (3);
the tensioning piece (6) comprises an annular positioning part (60), a supporting sleeve (61) arranged on the upper side of the annular positioning part (60) and an external thread connecting sleeve (62) arranged on the lower side of the annular positioning part (60);
the upper end opening of the supporting sleeve (61) is provided with a cone opening, and the outer wall of the supporting sleeve (61) is provided with a groove;
the external thread connecting sleeve (62) is connected with the internal thread of the double thread sleeve (11) in a matching way;
the bottom of the extrusion block (7) is provided with a conical extrusion part (70), and the diameter of the conical bottom of the conical extrusion part (70) is not smaller than the inner diameter of the conical opening at the upper end of the supporting sleeve (61); the bottom of the conical extrusion part (70) is provided with a screw hole;
external threads are arranged at two ends of the connecting rod (5), the upper end of the connecting rod (5) is screwed into a screw hole at the bottom of the conical extrusion part (70), and the lower end of the connecting rod is screwed into the internal thread sliding sleeve (2).
2. The internal stay positioning clamp according to claim 1, characterized in that an operating rod (40) is provided on the outer wall of the adjusting nut (4).
3. The internal stay positioning fixture according to claim 1, wherein a plurality of slots (61 a) are arranged on the outer wall of the support sleeve (61), and the slots are uniformly arranged on the support sleeve in an annular array; the slot (61 a) is dug downwards from the top of the supporting sleeve (61).
4. The internal stay positioning fixture according to claim 1, wherein the opening of the double-threaded sleeve (11) is tapered, and the connection part of the annular positioning part (60) and the external thread connecting sleeve (62) is provided with a tapered structure, and the tapered structure is matched with the opening of the double-threaded sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320262596.7U CN219074916U (en) | 2023-02-21 | 2023-02-21 | Internal stay positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320262596.7U CN219074916U (en) | 2023-02-21 | 2023-02-21 | Internal stay positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219074916U true CN219074916U (en) | 2023-05-26 |
Family
ID=86398850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320262596.7U Active CN219074916U (en) | 2023-02-21 | 2023-02-21 | Internal stay positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219074916U (en) |
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2023
- 2023-02-21 CN CN202320262596.7U patent/CN219074916U/en active Active
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