CN214251523U - Fixed clamping mechanism of ball screw pair test bed - Google Patents
Fixed clamping mechanism of ball screw pair test bed Download PDFInfo
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- CN214251523U CN214251523U CN202120359377.1U CN202120359377U CN214251523U CN 214251523 U CN214251523 U CN 214251523U CN 202120359377 U CN202120359377 U CN 202120359377U CN 214251523 U CN214251523 U CN 214251523U
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Abstract
The utility model discloses a fixed clamping mechanism of a ball screw pair test bed, belonging to the technical field of ball screw detection devices, comprising a support, a horizontal through hole is arranged on the support, one end of the horizontal through hole is inserted with a horizontal shaft, the other end of the horizontal through hole is inserted with a transmission shaft, one end of the horizontal shaft, which is positioned outside the support, is a screw rod connecting end for fixedly connecting with a screw rod, the other end of the horizontal shaft is provided with internal threads, the transmission shaft and the support form a rotating fit, the fixed end of the transmission shaft is in threaded connection with the horizontal shaft, the free end of the transmission shaft is positioned outside the support, a long-strip sliding groove is arranged on the outer wall of the middle part of the horizontal shaft, first keyhole has been seted up at the support up end, and first key forms sliding fit with rectangular spout behind the lower extreme of first key passing first keyhole with first retaining member and support fixed connection, and the horizontal axis has along axial removal degree of freedom with the help of the sliding fit of rectangular spout and first key. Simple structure, firm in connection is reliable, and easy dismounting is swift, and labour saving and time saving can improve work efficiency.
Description
Technical Field
The utility model belongs to the technical field of ball screw detection device, relate to clamping mechanism, especially a fixed clamping mechanism of ball screw auxiliary test platform.
Background
The ball screw comprises a nut, a screw rod and a group of balls arranged between the nut and the screw rod, and has a series of advantages of flexible transmission, high transmission efficiency, high transmission precision, long service life and the like. The mechanism structure that current ball screw pair test bench is used for the clamping fixed lead screw is complicated, wastes time and energy when the dismouting moreover, and work efficiency remains to be improved.
Disclosure of Invention
The utility model discloses an overcome prior art's defect, designed a fixed clamping mechanism of ball screw pair test bench, simple structure, firm in connection is reliable, and easy dismounting is swift, and labour saving and time saving can improve work efficiency.
The utility model adopts the following specific technical proposal: the utility model provides a fixed clamping mechanism of vice test bench of ball screw, includes the setting on the table surface of test bench and be used for the support of being connected with the lead screw, and the key lies in: seted up horizontal via hole on the support, the one end cartridge of horizontal via hole has the horizontal axis, the other end cartridge has the transmission shaft, the horizontal axis is located the outside one end of support be used for with lead screw fixed connection's lead screw link, the other end is provided with the internal thread, the transmission shaft forms the stiff end and the horizontal axis threaded connection of normal running fit and transmission shaft with the support, the free end is located the support outside, rectangular spout has been seted up on the outer wall at horizontal axis middle part, first keyhole has been seted up to the up end of support, add first key, first key is with the help of first retaining member and support fixed connection, the lower extreme of first key forms sliding fit with rectangular spout behind the first keyhole, the horizontal axis has along axial removal degree of freedom with the help of the sliding fit of rectangular spout and first key.
The end face of the screw rod connecting end of the horizontal shaft is provided with a positioning hole for inserting the screw rod, the side wall of the horizontal shaft is provided with a jacking piece, and the jacking piece is in close contact with the screw rod in the positioning hole to form a locking structure between the screw rod and the horizontal shaft.
The inner wall of one end of the support is provided with a bearing mounting hole, the diameter of the bearing mounting hole is larger than that of the horizontal through hole, a bearing arranged in the bearing mounting hole is positioned between the transmission shaft and the support, the transmission shaft positioned on the outer side of the bearing is sleeved with a gland used for compressing an outer ring of the bearing, and the gland is in close contact with the support and is fixedly connected with the support by means of a second locking piece.
And the free end of the transmission shaft is in threaded connection with a locking nut, and the locking nut is positioned on the outer side of the gland.
The bearing pre-tightening mechanism is characterized in that a pressing sleeve used for pressing an inner ring of a bearing is arranged between the gland and the transmission shaft, the transmission shaft and the pressing sleeve are in clearance fit, an accommodating groove is formed in the inner wall, facing one end of the bearing, of the gland, a sealing ring is filled in the accommodating groove, one end, far away from the bearing, of the pressing sleeve protrudes out of the gland, and the pressing sleeve is in close contact with the bearing and a locking nut to form an inner ring pre-tightening mechanism of the bearing.
The lower end of the support is provided with a positioning convex edge protruding outwards, a third locking part is arranged on the positioning convex edge, and the support is fixedly connected with the working table surface through the third locking part.
And a fourth locking piece which is used for being tightly contacted with the side wall of the horizontal shaft is also arranged on the side wall of the support.
The second locking member and the first locking member are both screws.
The tightening piece is a screw.
The third locking member is a screw.
The utility model has the advantages that: after the horizontal shaft installation together on lead screw and the support, rotate the transmission shaft, make the transmission shaft drive horizontal axial transmission shaft direction and remove, can finely tune the horizontal shaft, can reduce the axial length elastic deformation of horizontal shaft to lead screw axial clearance measuring result's influence for measuring result is more accurate. The first key is connected with the first key hole arranged on the support in an inserting mode, the horizontal shaft can be prevented from rotating, and the influence of radial elastic deformation of the horizontal shaft on the measuring result of the axial clearance of the screw rod is avoided. Simple structure, firm in connection is reliable, and easy dismounting is swift, and labour saving and time saving can improve work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a right side view of the present invention.
Fig. 4 is a left side view of the present invention.
In the drawings, 1 represents a support, 2 represents a horizontal shaft, 2-1 represents a strip chute, 2-2 represents a positioning hole, 3 represents a top fastening member, 4 represents a first key, 5 represents a first fastening member, 6 represents a transmission shaft, 7 represents a bearing, 8 represents a gland, 9 represents a seal ring, 10 represents a press sleeve, 11 represents a second fastening member, 12 represents a lock nut, 13 represents a third fastening member, and 14 represents a fourth fastening member.
Detailed Description
The present invention will be described in detail with reference to the following drawings and specific embodiments:
in the specific embodiment, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, a fixed clamping mechanism of a ball screw pair test bed comprises a support 1 which is arranged on a working table of the test bed and is used for being connected with a screw, a horizontal through hole is arranged on the support 1, a horizontal shaft 2 is inserted into one end of the horizontal through hole, a transmission shaft 6 is inserted into the other end of the horizontal through hole, one end of the horizontal shaft 2, which is positioned outside the support 1, is a screw connecting end used for being fixedly connected with the screw, an internal thread is arranged at the other end of the horizontal shaft, the transmission shaft 6 is in rotating fit with the support 1, the fixed end of the transmission shaft 6 is in threaded connection with the horizontal shaft 2, the free end of the horizontal shaft is positioned outside the support 1, a strip-shaped sliding groove 2-1 is arranged on the outer wall of the middle part of the horizontal shaft 2, a first key hole is arranged on the upper end surface of the support 1, a first key 4 is additionally arranged, the first key 4 is fixedly connected with the support 1 by means of a first locking member 5, the lower end of the first key hole is in sliding fit with the strip-shaped sliding fit with the sliding groove 2-1, the horizontal shaft 2 has freedom of movement in the axial direction by means of the sliding fit of the elongated runner 2-1 and the first key 4.
With 2 clearance fit of horizontal axis on lead screw and the support 1, rotate transmission shaft 6, make transmission shaft 6 drive horizontal axis 2 to 6 directions of transmission shaft and remove, the lower extreme of first key 4 slides in rectangular spout 2-1, can finely tune horizontal axis 2, can reduce the axial length elastic deformation of horizontal axis 2 to the influence of lead screw axial clearance measuring result for measuring result is more accurate, simple structure, convenient operation. The first key 4 is connected with a first key hole formed in the support 1 in an inserting mode, the horizontal shaft 2 can be prevented from rotating, and the influence of radial elastic deformation of the horizontal shaft 2 on the measuring result of the axial clearance of the screw rod is avoided.
As a further improvement of the utility model, the positioning hole 2-2 for inserting the lead screw is arranged on the end face of the lead screw connecting end of the horizontal shaft 2, the top fastening piece 3 is arranged on the side wall of the horizontal shaft 2, the top fastening piece 3 and the lead screw positioned in the positioning hole 2-2 are in close contact with each other to form a locking structure between the lead screw and the horizontal shaft 2, the structure is simple, the connection is firm and reliable, the dismounting is convenient and fast, and the time and the labor are saved. The top fastening piece 3 is preferably a screw, and is convenient to obtain, low in cost and convenient to disassemble and assemble.
As right the utility model discloses a further improvement is provided with the bearing mounting hole on the inner wall of 1 one end of support, and the diameter of bearing mounting hole is greater than the diameter of horizontal via hole, and the bearing 7 of setting in the bearing mounting hole is located between transmission shaft 6 and the support 1, and bearing 7's setting makes transmission shaft 6 labour saving and time saving more when rotatory. The transmission shaft 6 positioned outside the bearing 7 is sleeved with a gland 8 for pressing an outer ring of the bearing 7, the gland 8 is tightly contacted with the support 1 and is fixedly connected with the support 1 by virtue of a second locking piece 11, and the gland 8 can also play a role in protecting the bearing 7. The second locking part 11 and the first locking part 5 are both screws, so that the material is convenient to obtain, the cost is low, and the assembly and disassembly are convenient. The bearing mounting hole and the horizontal through hole form a step groove, as shown in fig. 1, the bearing mounting hole is located at the right end of the support 1, the horizontal through hole is located at the left end of the support 1, and the part of the support 1 located between the bearing mounting hole and the horizontal through hole can tightly support the bearing 7.
The free end of the transmission shaft 6 is in threaded connection with a locking nut 12, and the locking nut 12 is located on the outer side of the gland 8, so that the connection between the gland 8 and the support 1 is firmer and more reliable. Be provided with the inner ring's that is used for compressing tightly bearing 7 between gland 8 and transmission shaft 6 and press cover 10, be clearance fit between transmission shaft 6 and the pressure cover 10, the holding tank has been seted up on the inner wall of gland 8 towards bearing 7 one end, the holding tank intussuseption is filled with sealing washer 9, the one end protrusion that bearing 7 was kept away from to pressure cover 10 is in the gland 8 outside, press cover 10 simultaneously with bearing 7 and lock nut 12 in close contact with form the inner ring's of bearing 7 pretension mechanism, press from both sides tight bearing 7 in the bearing mounting hole, can prevent that bearing 7 from taking place the skew along the axial. The connection between the gland 8 and the support 1 is made more secure by means of the lock nut 12, and the horizontal shaft 2 exerts a pushing or pulling force on the clamped part when the transmission shaft 6 is rotated.
As right the utility model discloses a further improvement is provided with the protruding edge in the protruding location in the outside at 1 lower extreme of support, fixes a position protruding edge and is provided with third retaining member 13, and third retaining member 13 preferred is the screw, and support 1 is with the help of third retaining member 13 and table surface fixed connection. Simple structure, easy dismounting is swift, labour saving and time saving.
As a further improvement, the fourth locking member 14 is disposed on the side wall of the support 1 for closely contacting with the side wall of the horizontal shaft 2, so as to prevent the horizontal shaft 2 from rotating and further improve the accuracy of positioning.
Claims (10)
1. The utility model provides a fixed clamping mechanism of ball screw pair test bench, is including setting up on the table surface of test bench and be used for support (1) be connected with the lead screw, its characterized in that: a horizontal through hole is formed in a support (1), a horizontal shaft (2) is inserted into one end of the horizontal through hole, a transmission shaft (6) is inserted into the other end of the horizontal through hole, one end, located outside the support (1), of the horizontal shaft (2) is a screw rod connecting end used for being fixedly connected with a screw rod, an internal thread is arranged at the other end of the horizontal through hole, the transmission shaft (6) is in running fit with the support (1), the fixed end of the transmission shaft (6) is in threaded connection with the horizontal shaft (2), the free end of the transmission shaft is located outside the support (1), a long-strip-shaped sliding groove (2-1) is formed in the outer wall of the middle part of the horizontal shaft (2), a first key hole is formed in the upper end face of the support (1), a first key (4) is additionally arranged, the first key (4) is fixedly connected with the support (1) by means of a first locking piece (5), and the lower end of the first key (4) is in sliding fit with the long-strip-shaped sliding groove (2-1) after passing through the first key hole, the horizontal shaft (2) has freedom of movement in the axial direction by means of the sliding fit of the elongated runner (2-1) and the first key (4).
2. The fixing and clamping mechanism of the ball screw pair test bed according to claim 1, characterized in that: the end face of the screw rod connecting end of the horizontal shaft (2) is provided with a positioning hole (2-2) for inserting the screw rod, the side wall of the horizontal shaft (2) is provided with a top fastening piece (3), and the top fastening piece (3) is in close contact with the screw rod positioned in the positioning hole (2-2) to form a locking structure between the screw rod and the horizontal shaft (2).
3. The fixing and clamping mechanism of the ball screw pair test bed according to claim 1, characterized in that: be provided with the bearing mounting hole on the inner wall of support (1) one end, the diameter of bearing mounting hole is greater than the diameter of horizontal via hole, bearing (7) of setting in the bearing mounting hole are located between transmission shaft (6) and support (1), be located transmission shaft (6) in the bearing (7) outside and overlap and be equipped with gland (8) that are used for compressing tightly the outer loop of bearing (7), gland (8) and support (1) in close contact with and with the help of second retaining member (11) and support (1) fixed connection.
4. The fixing and clamping mechanism of the ball screw pair test bed as claimed in claim 3, wherein: the free end of the transmission shaft (6) is in threaded connection with a lock nut (12), and the lock nut (12) is positioned on the outer side of the gland (8).
5. The fixing and clamping mechanism of the ball screw pair test bed as claimed in claim 4, wherein: be provided with between gland (8) and transmission shaft (6) and be used for compressing tightly inner ring of bearing (7) pressure cover (10), be clearance fit between transmission shaft (6) and pressure cover (10), set up the holding tank on gland (8) the inner wall towards bearing (7) one end, the holding tank intussuseption is filled with sealing washer (9), the one end protrusion in gland (8) outside that bearing (7) were kept away from in pressure cover (10), pressure cover (10) simultaneously with bearing (7) and lock nut (12) in close contact with form the inner ring's of bearing (7) pretension mechanism.
6. The fixing and clamping mechanism of the ball screw pair test bed according to claim 1, characterized in that: the lower end of the support (1) is provided with a positioning convex edge protruding outwards, a third locking piece (13) is arranged on the positioning convex edge, and the support (1) is fixedly connected with the working table top by means of the third locking piece (13).
7. The fixing and clamping mechanism of the ball screw pair test bed according to claim 1, characterized in that: and a fourth locking piece (14) used for being tightly contacted with the side wall of the horizontal shaft (2) is also arranged on the side wall of the support (1).
8. The fixing and clamping mechanism of the ball screw pair test bed as claimed in claim 3, wherein: the second locking piece (11) and the first locking piece (5) are both screws.
9. The fixing and clamping mechanism of the ball screw pair test bed as claimed in claim 2, wherein: the top fastening piece (3) is a screw.
10. The fixing and clamping mechanism of the ball screw pair test bed as claimed in claim 6, wherein: the third locking piece (13) is a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120359377.1U CN214251523U (en) | 2021-02-06 | 2021-02-06 | Fixed clamping mechanism of ball screw pair test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120359377.1U CN214251523U (en) | 2021-02-06 | 2021-02-06 | Fixed clamping mechanism of ball screw pair test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214251523U true CN214251523U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120359377.1U Active CN214251523U (en) | 2021-02-06 | 2021-02-06 | Fixed clamping mechanism of ball screw pair test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214251523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427804A (en) * | 2022-02-07 | 2022-05-03 | 四川中陆嘉诚科技有限公司 | Automatic shooting fixer for launching vehicle |
-
2021
- 2021-02-06 CN CN202120359377.1U patent/CN214251523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427804A (en) * | 2022-02-07 | 2022-05-03 | 四川中陆嘉诚科技有限公司 | Automatic shooting fixer for launching vehicle |
| CN114427804B (en) * | 2022-02-07 | 2023-08-29 | 四川中陆嘉诚科技有限公司 | Automatic shooting fixer for launching vehicle |
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