CN220772560U - Detection tool for detecting pre-pressure of screw rod - Google Patents
Detection tool for detecting pre-pressure of screw rod Download PDFInfo
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- CN220772560U CN220772560U CN202322424902.5U CN202322424902U CN220772560U CN 220772560 U CN220772560 U CN 220772560U CN 202322424902 U CN202322424902 U CN 202322424902U CN 220772560 U CN220772560 U CN 220772560U
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- screw rod
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- 238000001514 detection method Methods 0.000 title claims abstract description 80
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a detection tool for detecting the pre-pressure of a screw rod, which comprises a bracket component, the screw rod, a connecting seat, a limiting structure and a detection component, wherein the screw rod is rotatably arranged on the bracket component, the connecting seat is sleeved on the screw rod and is in threaded connection with the screw rod, the limiting structure is arranged between the bracket component and the connecting seat so as to limit the rotation of the connecting seat around the axis of the screw rod, and the detection component is connected with the connecting seat or the screw rod so as to enable the screw rod to rotate, so that the detection component can detect the pre-pressure of the screw rod on the connecting seat, the structure is simple, the pre-pressure of the screw rod can be detected without professional equipment, and the detection cost of the screw rod can be reduced.
Description
Technical Field
The utility model relates to the technical field of screw rod detection, in particular to a detection tool for detecting screw rod pre-pressure.
Background
At present, the screw is a common transmission part, the requirements of different use occasions on the pre-compression of the screw are different, and the pre-compression of the screw is required to be tested before the screw is assembled so as to ensure that the pre-compression of the screw meets the requirements. Because the lead screw precompression is detected through professional equipment generally during detection, the price of the professional equipment is high, and the detection cost for detecting the lead screw precompression is high.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a detection tool for detecting the lead screw pre-pressure, which can reduce the detection cost for detecting the lead screw pre-pressure.
According to the detection tool for detecting the pre-pressure of the screw rod, the detection tool comprises a support assembly, the screw rod, a connecting seat, a limiting structure and a detection assembly, wherein the screw rod is rotatably arranged on the support assembly, the connecting seat is sleeved on the screw rod and is in threaded connection with the screw rod, the limiting structure is arranged between the support assembly and the connecting seat so as to limit the rotation of the connecting seat around the axis of the screw rod, and the detection assembly is connected with the connecting seat or the screw rod so as to enable the screw rod to rotate, and can detect the pre-pressure of the screw rod on the connecting seat.
The detection tool for detecting the lead screw pre-pressure has at least the following beneficial effects:
the lead screw is equipped with first screw thread portion, the connecting seat is equipped with the through-hole, the lateral wall of through-hole is equipped with second screw thread portion, first screw thread portion and second screw thread portion screw-thread fit, the precompression of lead screw equals the thrust of first screw thread portion to second screw thread portion, when detecting the precompression of lead screw, can install the lead screw that waits to detect on the bracket component earlier, afterwards, through the relative lead screw removal of detection component drive connecting seat, can obtain the precompression of lead screw, simple structure need not through professional equipment can detect the precompression of lead screw, can reduce the testing cost of lead screw.
According to some embodiments of the utility model, the limiting structure comprises a limiting wheel arranged on the connecting seat, and the limiting wheel can be in rolling abutting connection with the bracket component.
According to some embodiments of the utility model, the limit wheels are configured with four limit wheels, and the four limit wheels are respectively arranged at corners of the connecting seat.
According to some embodiments of the utility model, the connection seat is connected with a pushing plate, and the detection assembly is configured as a push-pull force gauge, and a force application end of the push-pull force gauge is abutted with the pushing plate so as to push the connection seat to move.
According to some embodiments of the utility model, the pressing plate includes a pressing portion, a first reinforcing portion, and a second reinforcing portion, one end of the pressing portion is connected to the first reinforcing portion, the other end of the pressing portion is connected to the second reinforcing portion, and the pressing portion, the first reinforcing portion, and the second reinforcing portion are in an integral structure.
According to some embodiments of the utility model, the detection assembly is configured as a servo motor, an output shaft of which is connected to the screw, the servo motor being capable of deriving the pre-compression of the screw from a load torque of the output shaft of the servo motor.
According to some embodiments of the utility model, the bracket assembly comprises a bracket body and a mounting seat, the screw rod is rotatably arranged on the bracket body, the servo motor is arranged on the mounting seat, an adjusting structure is arranged between the mounting seat and the bracket body, and the adjusting structure is used for adjusting the mounting seat to move along the axial direction of the screw rod.
According to some embodiments of the utility model, the adjusting structure comprises a fastener and a waist-shaped hole arranged on the mounting seat, wherein the fastener penetrates through the waist-shaped hole and is in threaded connection with the bracket body.
According to some embodiments of the utility model, the servo motor comprises a screw rod, a control assembly, a support body and a control assembly, wherein the screw rod is arranged on the support body, the control assembly is electrically connected with the servo motor, an accommodating groove is formed in one side of the support body, which is away from the screw rod, and the control assembly is accommodated in the accommodating groove.
According to some embodiments of the utility model, the device further comprises a first position detection module and a second position detection module, wherein the first position detection module and the second position detection module are arranged at intervals along the axial direction of the screw rod, the connecting seat is connected with a trigger piece, and the trigger piece can trigger the first position detection module and the second position detection module.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a detection tool for detecting lead screw pre-pressure according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram illustrating an assembly of a control assembly and a bracket assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a structure in which a servo motor is disconnected from a screw in an embodiment of the present utility model;
FIG. 4 is a schematic diagram illustrating an assembly of a connecting seat and a limiting wheel according to an embodiment of the present utility model;
fig. 5 is an assembly schematic diagram of a mounting base and a servo motor according to an embodiment of the present utility model.
Reference numerals:
the bracket assembly 100, the bracket body 110, the receiving groove 111, the mounting seat 120, the waist-shaped hole 121, the fastener 130, the screw rod 200, the connecting seat 300, the limiting wheel 310, the pushing plate 320, the pushing part 321, the first reinforcing part 322, the second reinforcing part 323, the trigger 330, the servo motor 400, the coupler 410, the control assembly 500, the first position detection module 610 and the second position detection module 620.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, a detection tool for detecting pre-stress of a screw rod according to an embodiment of the present utility model includes a bracket assembly 100, a screw rod 200, a connecting seat 300, a limiting structure and a detection assembly, wherein the screw rod 200 is rotatably disposed on the bracket assembly 100, the connecting seat 300 is sleeved on the screw rod 200 and is in threaded connection with the screw rod 200, the limiting structure is disposed between the bracket assembly 100 and the connecting seat 300 to limit the connecting seat 300 to rotate around an axis of the screw rod 200, the detection assembly is connected with the connecting seat 300 or the screw rod 200 so as to enable the screw rod 200 to rotate, and the detection assembly can detect the pre-stress of the screw rod 200 on the connecting seat 300.
Specifically, the lead screw 200 is provided with a first threaded portion, the connecting seat 300 is provided with a through hole, the side wall of the through hole is provided with a second threaded portion, the first threaded portion is in threaded fit with the second threaded portion, the pre-pressure of the lead screw 200 is equal to the thrust of the first threaded portion to the second threaded portion, when the pre-pressure of the lead screw 200 is detected, the lead screw 200 to be detected can be firstly installed on the bracket assembly 100, then the connecting seat 300 is driven to move relative to the lead screw 200 through the detection assembly, the pre-pressure of the lead screw 200 can be obtained, the structure is simple, the pre-pressure of the lead screw 200 can be detected without professional equipment, and the detection cost of the lead screw 200 can be reduced.
Referring to fig. 1 and 4, in some embodiments of the present utility model, the limiting structure includes a limiting wheel 310 disposed on the connecting seat 300, where the limiting wheel 310 is rollably abutted against the bracket assembly 100, so as to reduce friction between the connecting seat 300 and the bracket assembly 100, so as to improve detection accuracy of a detection tool for detecting pre-pressure of the screw rod.
Specifically, by setting the limiting wheel 310, the contact between the limiting wheel 310 and the bracket assembly 100 is a line contact, so that the contact area between the connecting seat 300 and the bracket assembly 100 can be reduced, and the friction between the connecting seat 300 and the bracket assembly 100 can be reduced, thereby improving the detection accuracy of the detection tool for detecting the lead screw precompression.
The bearing is provided between the limit wheel 310 and the connection base 300, and the rotation smoothness of the limit wheel 310 can be improved by providing the bearing, which will not be described in detail here.
Referring to fig. 4, in some embodiments of the present utility model, four limiting wheels 310 are configured, and four limiting wheels 310 are respectively disposed at corners of the connection base 300, so that friction between the connection base 300 and the bracket assembly 100 can be reduced, thereby improving detection accuracy of a detection tool for detecting pre-compression of a screw rod, and improving movement stability of the connection base 300.
Specifically, the four limiting wheels 310 are distributed in a rectangular structure, so that friction force between the connecting seat 300 and the bracket assembly 100 can be reduced, detection accuracy of a detection tool for detecting lead screw precompression is improved, and meanwhile, movement stability of the connecting seat 300 can be improved.
Of course, in some embodiments, the spacing wheel 310 may be configured with one, two, three, etc., without limitation.
Referring to fig. 1 and 3, in some embodiments of the present utility model, the connection seat 300 is connected to a pushing plate 320, and the detection assembly is configured as a push-pull gauge, and a force application end of the push-pull gauge abuts against the pushing plate 320 to push the connection seat 300 to move, so that the structure is simple, and the detection of the pre-compression force of the screw 200 can be facilitated.
Specifically, by configuring the detection assembly as a push-pull force gauge, the force application end of the push-pull force gauge can apply a pushing force to act on the push-pull plate 320, and when the push-pull plate 320 can push the connecting seat 300 to move, the pushing force displayed by the push-pull force gauge is the pre-pressure of the screw rod 200, so that the structure is simple, and the pre-pressure of the screw rod 200 can be conveniently detected.
The push-pull force gauge may be a digital push-pull force gauge or a pointer push-pull force gauge, and may be capable of detecting the pushing force of the push-pull plate 320, which is not limited herein.
Referring to fig. 1 and 3, in some embodiments of the present utility model, the pressing plate 320 includes a pressing portion 321, a first reinforcing portion 322 and a second reinforcing portion 323, one end of the pressing portion 321 is connected to the first reinforcing portion 322, the other end of the pressing portion 321 is connected to the second reinforcing portion 323, and the pressing portion 321, the first reinforcing portion 322 and the second reinforcing portion 323 are integrally configured, so that the number of dies can be reduced, and the manufacturing cost of the dies can be reduced, thereby reducing the manufacturing cost of a detection tool for detecting the lead screw pre-pressure.
Specifically, the pressing portion 321, the first reinforcing portion 322 and the second reinforcing portion 323 can be integrally formed through sheet metal bending, so that the number of dies can be reduced, and the production and manufacturing cost of the dies can be reduced, thereby reducing the production and manufacturing cost of a detection tool for detecting the pre-pressure of the screw rod.
The first reinforcement portion 322 and the second reinforcement portion 323 are disposed opposite to each other, and the first reinforcement portion 322 and the second reinforcement portion 323 are located on the same side of the pressing portion 321, so that the structural stability of the pressing plate 320 can be improved, the pressing plate 320 is prevented from being pressed and deformed by the push-pull force gauge, and the service life of the pressing plate 320 can be improved, which will not be described in detail herein.
Referring to fig. 1 and 5, in some embodiments of the present utility model, a detection assembly is configured as a servo motor 400, an output shaft of the servo motor 400 is connected with a screw rod 200, the servo motor 400 can obtain pre-pressure of the screw rod 200 according to a load torque of the output shaft of the servo motor 400, and the detection tool for detecting the pre-pressure of the screw rod has a simple structure and can reduce production and manufacturing costs of detection tools for detecting the pre-pressure of the screw rod.
Specifically, the output shaft of the servo motor 400 is connected with the screw rod 200 through the coupling 410, the servo motor 400 can obtain the pre-pressure of the screw rod 200 according to the load torque of the output shaft of the servo motor 400, the structure is simple, and the production and manufacturing cost of a detection tool for detecting the pre-pressure of the screw rod can be reduced.
It should be noted that, the calculation formula of the pre-pressure of the screw 200 is: f= (2pi×η)/D, where T is a load torque of an output shaft of the servo motor 400, η is a mechanical transmission efficiency of the screw 200, and D is a lead of the screw 200, which will not be described in detail herein.
It will be appreciated that the load torque of the output shaft of the servo motor 400 is equal to the rated torque of the servo motor 400 multiplied by the average load factor of the servo motor 400, and is not limited herein.
Referring to fig. 1 and 5, in some embodiments of the present utility model, a bracket assembly 100 includes a bracket body 110 and a mounting seat 120, a screw rod 200 is rotatably provided to the bracket body 110, a servo motor 400 is provided to the mounting seat 120, an adjusting structure is provided between the mounting seat 120 and the bracket body 110, and the adjusting structure is used for adjusting the axial movement of the mounting seat 120 along the screw rod 200, so that an output shaft of the servo motor 400 can be connected or disconnected with the screw rod 200, so that the screw rod 200 and the servo motor 400 can be assembled, and the assembly efficiency of an assembler can be improved.
Referring to fig. 1 and 5, in some embodiments of the present utility model, the adjusting structure includes a fastener 130 and a waist-shaped hole 121 provided at the mounting base 120, and the fastener 130 is penetrated through the waist-shaped hole 121 and is screw-coupled with the bracket body 110, so that an output shaft of the servo motor 400 can be connected or disconnected with the screw rod 200, thereby facilitating assembly of the screw rod 200 and the servo motor 400, and improving assembly efficiency of an assembler.
Specifically, the waist-shaped hole 121 is arranged along the axial direction of the screw rod 200, when the output shaft of the servo motor 400 needs to be connected with the screw rod 200, an assembler can move the mounting seat 120 along the direction close to the screw rod 200 so that the output shaft of the servo motor 400 is connected with the screw rod 200, the mounting seat 120 can be fixed by screwing the fastener 130, and when the connection between the output shaft of the servo motor 400 and the screw rod 200 needs to be disconnected, the assembler can loosen the fastener 130 so that the mounting seat 120 moves along the direction close to the screw rod 200, the connection between the output shaft of the servo motor 400 and the screw rod 200 can be disconnected, the operation is simple, and the assembly efficiency of the assembler can be improved.
It should be noted that, the adjusting structure may also be a rack-and-pinion transmission structure, where the rack-and-pinion structure includes a rack provided on the mounting base 120 and a gear provided on the bracket assembly 100, and the gear is meshed with the rack, and may drive the gear to rotate through the power mechanism, so as to drive the mounting base 120 to move along a direction approaching to and departing from the screw rod 200, which is not limited herein.
The fastener 130 is a bolt or a screw, and the details thereof are not described herein.
Referring to fig. 2, in some embodiments of the present utility model, the device further includes a control assembly 500, the control assembly 500 is electrically connected to the servo motor 400, a receiving groove 111 is disposed on a side of the bracket body 110 away from the screw 200, the control assembly 500 is received in the receiving groove 111, so that the control assembly 500 can be hidden, and the use reliability of the detection tool for detecting the pre-stress of the screw can be improved.
Specifically, by setting the control assembly 500, the start of the servo motor 400 can be controlled, the pre-pressure of the screw rod 200 can be calculated according to the load torque of the servo motor 400, and the pre-pressure of the screw rod 200 can be obtained according to the above calculation formula, and by hiding the control assembly 500 in the accommodating groove 111, so that the situation that the control assembly 500 is damaged can occur, the use reliability of the detection tool for detecting the pre-pressure of the screw rod can be improved.
Referring to fig. 1, in some embodiments of the present utility model, the apparatus further includes a first position detection module 610 and a second position detection module 620, where the first position detection module 610 and the second position detection module 620 are disposed at intervals along an axial direction of the screw 200, and the connection base 300 is connected with a trigger 330, and the trigger 330 can trigger the first position detection module 610 and the second position detection module 620, so that collision of the connection base 300 with the bracket assembly 100 can be avoided, and use reliability of a detection tool for detecting pre-compression of the screw is improved.
Specifically, when the connecting seat 300 is at the first position, the triggering piece 330 can trigger the first position detection module 610, when the connecting seat 300 is at the second position, the triggering piece 330 can trigger the second position detection module 620, so that the situation that the connecting seat 300 collides with the bracket assembly 100 can be avoided, and the use reliability of the detection tool for detecting the pre-pressure of the screw rod is improved.
It should be noted that the first position detecting module 610 and the second position detecting module 620 may be a contact position sensor or a non-contact position sensor, which will not be described in detail herein.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The present embodiment has been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiment, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit.
Claims (10)
1. A detect frock for detecting lead screw precompression, its characterized in that includes:
a bracket assembly (100);
the screw rod (200) is rotatably arranged on the bracket assembly (100);
the connecting seat (300) is sleeved on the screw rod (200) and is in threaded connection with the screw rod (200);
the limiting structure is arranged between the bracket assembly (100) and the connecting seat (300) to limit the connecting seat (300) to rotate around the axis of the screw rod (200);
the detection assembly is connected with the connecting seat (300) or the screw rod (200) so as to enable the screw rod (200) to rotate, and the detection assembly can detect the pre-pressure of the screw rod (200) on the connecting seat (300).
2. The tool for detecting lead screw precompression according to claim 1, wherein the limiting structure comprises a limiting wheel (310) provided on the connection seat (300), the limiting wheel (310) being rollably abutted with the bracket assembly (100).
3. The detection tool for detecting the pre-pressure of the screw rod according to claim 2, wherein four limit wheels (310) are configured, and the four limit wheels (310) are respectively arranged at corners of the connecting seat (300).
4. The tool for detecting lead screw precompression according to claim 1, wherein the connection base (300) is connected with a pushing plate (320), the detection assembly is configured as a push-pull force gauge, and a force application end of the push-pull force gauge abuts against the pushing plate (320) to push the connection base (300) to move.
5. The tool for detecting lead screw pre-pressure according to claim 4, wherein the pressing plate (320) comprises a pressing portion (321), a first reinforcing portion (322) and a second reinforcing portion (323), one end of the pressing portion (321) is connected to the first reinforcing portion (322), the other end of the pressing portion (321) is connected to the second reinforcing portion (323), and the pressing portion (321), the first reinforcing portion (322) and the second reinforcing portion (323) are in an integral structure.
6. The detection tool for detecting lead screw pre-pressure according to claim 1, wherein the detection assembly is configured as a servo motor (400), an output shaft of the servo motor (400) is connected with the lead screw (200), and the servo motor (400) can obtain the pre-pressure of the lead screw (200) according to a load torque of the output shaft of the servo motor (400).
7. The detection tool for detecting lead screw precompression according to claim 6, wherein the bracket assembly (100) comprises a bracket body (110) and a mounting seat (120), the lead screw (200) is rotatably provided on the bracket body (110), the servo motor (400) is provided on the mounting seat (120), an adjusting structure is provided between the mounting seat (120) and the bracket body (110), and the adjusting structure is used for adjusting the mounting seat (120) to move along the axial direction of the lead screw (200).
8. The tool for detecting pre-pressure of a screw according to claim 7, wherein the adjusting structure comprises a fastener (130) and a waist-shaped hole (121) arranged on the mounting seat (120), and the fastener (130) is arranged in the waist-shaped hole (121) in a penetrating manner and is in threaded connection with the bracket body (110).
9. The detection tool for detecting the pre-pressure of the screw rod according to claim 7, further comprising a control assembly (500), wherein the control assembly (500) is electrically connected with the servo motor (400), a containing groove (111) is formed in one side, away from the screw rod (200), of the support body (110), and the control assembly (500) is contained in the containing groove (111).
10. The detection tool for detecting the pre-pressure of the screw rod according to claim 1, further comprising a first position detection module (610) and a second position detection module (620), wherein the first position detection module (610) and the second position detection module (620) are arranged at intervals along the axial direction of the screw rod (200), the connection seat (300) is connected with a trigger piece (330), and the trigger piece (330) can trigger the first position detection module (610) and the second position detection module (620).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322424902.5U CN220772560U (en) | 2023-09-06 | 2023-09-06 | Detection tool for detecting pre-pressure of screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322424902.5U CN220772560U (en) | 2023-09-06 | 2023-09-06 | Detection tool for detecting pre-pressure of screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220772560U true CN220772560U (en) | 2024-04-12 |
Family
ID=90611618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322424902.5U Active CN220772560U (en) | 2023-09-06 | 2023-09-06 | Detection tool for detecting pre-pressure of screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220772560U (en) |
-
2023
- 2023-09-06 CN CN202322424902.5U patent/CN220772560U/en active Active
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