CN219747648U - Centering fixing device - Google Patents
Centering fixing device Download PDFInfo
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- CN219747648U CN219747648U CN202320608463.0U CN202320608463U CN219747648U CN 219747648 U CN219747648 U CN 219747648U CN 202320608463 U CN202320608463 U CN 202320608463U CN 219747648 U CN219747648 U CN 219747648U
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- fixing
- fixing piece
- fixing member
- rack
- centering
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 210000000078 claw Anatomy 0.000 description 14
- 238000001514 detection method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
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Abstract
The utility model discloses a centering fixing device, which comprises: the fixing assembly comprises a first fixing piece and a second fixing piece, the first fixing piece and the second fixing piece are arranged front and back in the first direction, and fixing parts are arranged at the ends, far away from each other, of the first fixing piece and the second fixing piece; the centering synchronous mechanism comprises a first rack, a second rack and a gear, wherein the first rack is arranged on a first fixing piece along a second direction, the second rack is arranged on a second fixing piece along the second direction, and the first rack and the second rack are respectively positioned on opposite surfaces of the first fixing piece and the second fixing piece; and the mounting seat is used for mounting the functional piece. The simple gear rack arrangement of the centering and synchronizing mechanism can ensure that the center of the fixed gear is aligned with the center of the fixed object, and the centering is simple and accurate.
Description
Technical Field
The utility model relates to the technical field of object debugging, detection and centering, in particular to a centering fixing device.
Background
With the development of social progress and science and technology, the requirement on automation of products is increasing. In the debugging and product detection processes of a plurality of devices, the center needs to be positioned, and then the detection is carried out through specific detection and other functional parts. In centering, manual measurements with a ruler are often used manually, then centering the function on the center found by the previous measurements. This approach is very inconvenient, inefficient, and has the disadvantage of low accuracy.
Disclosure of Invention
The utility model aims to provide a centering fixing device which has the advantages of simplicity and accuracy in centering and solves the problems of inconvenience and inaccuracy in centering an object.
According to an embodiment of the present utility model, a centering fixture includes:
the fixing assembly comprises a first fixing piece and a second fixing piece, wherein the first fixing piece and the second fixing piece are arranged front and back in a first direction, the first fixing piece and the second fixing piece are configured to be movable in a second direction, and fixing parts are arranged at the ends, away from each other, of the first fixing piece and the second fixing piece, so that the fixing parts are fixed on the outer side face of a fixed object after being contacted with the fixed object with a square, round or oval cross section;
the centering synchronization mechanism comprises a first rack, a second rack and a gear, wherein the first rack is arranged on a first fixing piece along a second direction, the second rack is arranged on a second fixing piece along the second direction, the first rack and the second rack are respectively positioned on opposite surfaces of the first fixing piece and the second fixing piece, the gear is configured to be meshed with the first rack and the second rack, and the position of the gear is configured to be equal to the distance from the center point of projection in the first direction to the outer ends of the first fixing piece and the second fixing piece;
a mount configured to mount to the gear, the mount for mounting a function.
In some embodiments, further comprising:
and a limit guide mechanism connecting the first fixing piece and the second fixing piece, wherein the limit guide mechanism is configured to limit the first fixing piece and the second fixing piece to move only in a second direction.
In some embodiments, further comprising:
and the telescopic device is configured to push the first fixing piece and the second fixing piece to move along a second direction so as to drive the first fixing piece and the second fixing piece to clamp and loosen the fixed object.
In some embodiments, the first fixing member and the second fixing member are plate-shaped, and the first fixing member and the second fixing member are arranged in parallel through a limit guide mechanism.
In some embodiments, at least one of the first fixing member and the second fixing member is provided with an opening, an axis of the gear is located in the opening, and the opening has a certain length in the second direction, so that the axis of the gear is always located in the opening during the movement of the first fixing member and the second fixing member in the second direction.
In some embodiments, the first fixing member and the second fixing member are provided with openings, and the mounting seat is a flange plate with a through hole concentric with the first fixing member and the second fixing member, so that the functional member can penetrate through the centering fixing device from the through hole and the openings and is mounted on the flange plate.
In some embodiments, the fixing portions on the first fixing member and the second fixing member each include two claws mounted on the same surface of the first fixing member and the second fixing member, the distances between the two claws on the first fixing member and the second fixing member to the center line L are equal, and the distances between the two claws on the first fixing member and the second fixing member are adjustable.
In some embodiments, the fixing portions on the first fixing piece and the second fixing piece include two claws respectively mounted on the same surface of the first fixing piece and the second fixing piece, and the claws are integrally formed with the first fixing piece and the second fixing piece.
In some embodiments, the first fixing member and the second fixing member are respectively provided with a connecting portion on the other surface opposite to the claw, and the connecting portions on the first fixing member and the second fixing member are respectively used for connecting two ends of the telescopic device, so that the two ends of the telescopic device are respectively connected and pushed to move in the second direction.
According to the technical scheme provided by the utility model, the distance between the first fixing piece and the second fixing piece in the second direction is adjustable, and the fixing parts at the two ends can be fixed on objects with different sizes. The simple gear rack arrangement of the centering synchronous mechanism can ensure that the center of the fixed gear is aligned with the center of the fixed object, and the centering is simple and accurate.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic perspective view of a centering fixture according to the present utility model;
FIG. 2 is a schematic front view of a centering fixture according to the present utility model;
fig. 3 is a schematic side view of a centering fixture according to the present utility model.
In the figure: 1-mount pad, 2-first mounting, 3-second mounting, 4-fixed part, 5-first rack, 6-second rack, 7-gear, 8-trompil, 9-spacing guiding mechanism, 10-telescoping device, 11-connecting portion.
Description of the embodiments
The technical solution provided by the present utility model is described in more detail below with reference to fig. 1-3.
Referring to fig. 1 to 3, an embodiment of the present utility model provides a centering fixture including a fixing assembly, a centering synchronization mechanism, and a mounting base 1.
The fixing assembly comprises a first fixing member 2 and a second fixing member 3. The first fixing piece 2 and the second fixing piece 3 are used for bearing the centering synchronous mechanism and the mounting seat 1. The first fixing element 2 and the second fixing element 3 can thus have various embodiments, for example, both in the form of a rod or a plate, or one in the form of a rod and the other in the form of a plate. In some embodiments described later, the first fixing member 2 and the second fixing member 3 are each plate-shaped. The first fixing piece 2 and the second fixing piece 3 which adopt plate-shaped structures are convenient for installing the centering synchronization mechanism and the installation seat 1.
The first fixing member 2 and the second fixing member 3 are disposed back and forth in the first direction a. The fixing parts 4 are arranged at the ends of the first fixing part 2 and the second fixing part 3 which are far away from each other, so that the fixing parts 4 are contacted with a fixed object with a square, round or oval cross section and then fixed on the outer side surface of the fixed object. The first fixing member 2 and the second fixing member 3 are configured to be movable in the second direction B. Both the first fixing member 2 and the second fixing member 3 involve two movements during the fixing and releasing of the object to be fixed by the centering fixing means. When the fixing and loosening are carried out, the first fixing piece 2 and the second fixing piece 3 are firstly adjusted to do deviating movement, the distance between the fixing parts 4 on the first fixing piece 2 and the second fixing piece 3 is increased, the distance is increased to be larger than the outline dimension of the fixed object, and the outline dimension is particularly the distance dimension between the fixing parts at two ends when the first fixing piece 2 and the second fixing piece 3 are fixed on the fixed object. Then the first fixing piece 2 and the second fixing piece 3 are adjusted to move towards each other, and the distance between the fixing parts 4 on the first fixing piece 2 and the second fixing piece 3 is reduced until the fixing parts 4 are contacted with and fixed on the fixed object.
The fixing portion 4 may have various implementation forms, and the fixing portion 4 may be a rod-shaped or plate-shaped protrusion fixedly provided on the first fixing member 2 and the second fixing member 3. For example, the fixing portion 4 on the first fixing member 2 and the second fixing member 3 includes two claws respectively mounted on the same surface of the first fixing member 2 and the second fixing member 3, the distances between the two claws on the first fixing member 2 and the second fixing member 3 and the center line L are equal, and the claws are integrally formed with the first fixing member 2 and the second fixing member 3. Of course, the fixing portion 4 may also be a rod-like or plate-like protrusion movably provided on the first fixing member 2 and the second fixing member 3. For example, the fixing portions 4 on the first fixing member 2 and the second fixing member 3 each include two claws mounted on the same face of the first fixing member 2 and the second fixing member 3, respectively, and the respective two claws on the first fixing member 2 and the second fixing member 3 are configured to be adjustable in distance. The claws are slidably provided on the first fixing member 2 and the second fixing member 3 and are movably fixed by fasteners such as bolts. When the fixing device is used, the distance between the two clamping claws at the two ends of the fixing component is reasonably adjusted according to the size of the fixed object, and the distances between the two clamping claws at the same end of the fixing component and the central line are equal.
The centering synchronization mechanism comprises a first rack 5, a second rack 6 and a gear 7. The first rack 5 is mounted on the first mount 2 in the second direction B and the second rack 6 is mounted on the second mount 3 in the second direction. Wherein the first rack 5 and the second rack 6 are respectively positioned on the opposite surfaces of the first fixing piece 2 and the second fixing piece 3, and the gear 7, the first rack 5 and the second rack 6 are positioned between the first fixing piece 2 and the second fixing piece 3 in the first direction. The gear 7 is configured to mesh with the first rack 5 and the second rack 6, that is, the first rack 5 and the second rack 6 are respectively located at two sides of the gear 7, and since the first rack 5 and the second rack 6 are both meshed with the gear 7, when the first fixing member 2 and/or the second fixing member 3 are pushed and pulled, the first rack 5 and the second rack 6 synchronously move towards and away from each other, so that synchronous opposite movement or opposite movement of the first fixing member 2 and the second fixing member 3 is realized. The position of the gear 7 is configured such that the distance from the center point of the projection in the first direction a to the outer ends of the first mount 2 and the second mount 3 is equal. Due to the action of the centering and synchronizing mechanism, the first fixing piece 2 and the second fixing piece 3 synchronously move, and meanwhile, the distances from the gear to the outer ends of the first fixing piece 2 and the second fixing piece 3 are equal, so that after the gear is fixed on a fixed object, the center of the gear 7 is always positioned at the center of the fixed object.
The gear 7 is provided with a mounting seat 1, and the mounting seat 1 is used for fixing external functional parts. In some specific embodiments, the first fixing member 2 and the second fixing member 3 are provided with openings 8, and the mounting base 1 is a flange plate with through holes concentric with the openings, so that the functional member can penetrate through the centering fixing device from the through holes and the openings 8 and be mounted on the flange plate, and the axial line of the flange plate coincides with the axial line of the gear 7. The functional element may be any object that is required to be aligned with the centre of the object to be secured, such as: rod body, scribing device, laser device, etc.
And a limit guide 9 connecting the first fixing member 2 and the second fixing member 3, the limit guide 9 being configured to limit movement of the first fixing member 2 and the second fixing member 3 only in the second direction B. The limit guide 9 can be implemented in various ways. For example, along the sliding groove in the second direction B and the slide matching it, one of the first fixing member 2 and the second fixing member 3 is provided with the sliding groove, and the other is provided with the slide. In some embodiments, the limit guide 9 is a linear guide. The linear guide is arranged in parallel with the second direction B.
The telescopic device 10 is used for pushing the first fixing piece 2 and the second fixing piece 3 to move along the second direction B so as to drive the first fixing piece 2 and the second fixing piece 3 to clamp and unclamp the fixed object. The connecting parts 11 are arranged on the other surfaces, opposite to the clamping jaws, of the first fixing piece 2 and the second fixing piece 3, the connecting parts 11 on the first fixing piece 2 and the second fixing piece 3 are respectively used for connecting the two ends of the telescopic device 10, and the two ends of the telescopic device 10 are respectively connected and push the first fixing piece 2 and the second fixing piece 3 to move in the second direction B. The telescoping device 10 may be a telescoping pushrod, spring, elastic cord, or the like. The existing common telescopic push rod is divided into an electric telescopic push rod, a hydraulic push rod and the like. The spring is shown in the drawings in the description of the utility model. When the first fixing member 2 and the second fixing member 3 are required to perform the deviating movement, the first fixing member 2 and the second fixing member 3 are required to be manually pulled outward. When the first fixing piece 2 and the second fixing piece 3 are required to move oppositely, the first fixing piece 2 and the second fixing piece 3 are loosened, and the first fixing piece 2 and the second fixing piece 3 move oppositely under the action of spring force.
Hereinafter, a circular pipe will be taken as an example of the object to be fixed. The first fixing piece 2 and the second fixing piece 3 are adjusted to move away from each other, so that the distance between the fixing parts on the first fixing piece 2 and the second fixing piece 3 is larger than the outer diameter of the pipeline, the first fixing piece 2 or the second fixing piece 3 is close to the end face of the pipeline, the first fixing piece 2 and the second fixing piece 3 are adjusted to move towards each other, and the fixing part 4 is fixed outside the pipeline. To ensure that the centre of the gear wheel 7 is aligned with the centre of the pipe, the positions of the first and second fixing members 2, 3 need to be adjusted so that all 4 fixing portions 4 can be brought into contact with the outer surface of the pipe.
For another example, the cross section of the object to be fixed is elliptical. The fixing portion 4 may be fixed near the minor axis or the major axis of the elliptical cross section. Also, to ensure that the center of the gear 7 is aligned with the center of the object to be fixed, it is necessary to adjust the positions of the first fixing member 2 and the second fixing member 3 so that all of the 4 fixing portions 4 can be brought into contact with the outer surface of the object to be fixed.
In addition, when the object to be fixed is in a square shape. The fixing portion 4 may be fixed near the diagonal of the object to be fixed. Also, to ensure that the center of the gear 7 is aligned with the center of the object to be fixed, it is necessary to adjust the positions of the first fixing member 2 and the second fixing member 3 so that all of the 4 fixing portions 4 can be brought into contact with the outer surface of the object to be fixed.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. Centering fixing device, its characterized in that includes:
the fixing assembly comprises a first fixing piece and a second fixing piece, wherein the first fixing piece and the second fixing piece are arranged front and back in a first direction, the first fixing piece and the second fixing piece are configured to be movable in a second direction, and fixing parts are arranged at the ends, away from each other, of the first fixing piece and the second fixing piece, so that the fixing parts are fixed on the outer side face of a fixed object after being contacted with the fixed object with a square, round or oval cross section;
the centering synchronization mechanism comprises a first rack, a second rack and a gear, wherein the first rack is arranged on a first fixing piece along a second direction, the second rack is arranged on a second fixing piece along the second direction, the first rack and the second rack are respectively positioned on opposite surfaces of the first fixing piece and the second fixing piece, the gear is configured to be meshed with the first rack and the second rack, and the position of the gear is configured to be equal to the distance from the center point of projection in the first direction to the outer ends of the first fixing piece and the second fixing piece;
a mount configured to mount to the gear, the mount for mounting a function.
2. The centering fixture of claim 1, further comprising:
and a limit guide mechanism connecting the first fixing piece and the second fixing piece, wherein the limit guide mechanism is configured to limit the first fixing piece and the second fixing piece to move only in a second direction.
3. The centering fixture of claim 1, further comprising:
and the telescopic device is configured to push the first fixing piece and the second fixing piece to move along a second direction so as to drive the first fixing piece and the second fixing piece to clamp and loosen the fixed object.
4. The centering and fixing device according to claim 1, wherein the first fixing member and the second fixing member are plate-shaped, and the first fixing member and the second fixing member are arranged in parallel by a limit guide mechanism.
5. The centering and fixing device according to claim 4, wherein at least one of the first fixing member and the second fixing member is provided with an opening, an axis of the gear is located in the opening, and the opening has a certain length in the second direction, so that the axis of the gear is always located in the opening during movement of the first fixing member and the second fixing member in the second direction.
6. The centering fixture of claim 5, wherein said first and second fixtures each have openings therein, and said mounting block is a flange having a through hole concentric therewith, such that a functional element extends from said through hole and openings through the centering fixture and is mounted to said flange.
7. The centering fixture of claim 5, wherein said securing portions on said first and second securing members each comprise two jaws mounted on a same face of said first and second securing members, respectively, said jaws on said first and second securing members each being configured for distance adjustment.
8. The centering and fixing device according to claim 5, wherein the fixing portions on the first fixing member and the second fixing member comprise two clamping jaws respectively mounted on the same face of the first fixing member and the second fixing member, distances from the two clamping jaws on the first fixing member and the second fixing member to the central line of the first fixing member and the second fixing member are equal, and the clamping jaws are integrally formed with the first fixing member and the second fixing member.
9. The centering and fixing device according to claim 7 or 8, wherein connecting parts are arranged on the other surfaces of the first fixing piece and the second fixing piece opposite to the clamping jaw, and the connecting parts are respectively used for connecting two ends of the telescopic device, so that the two ends of the telescopic device are respectively connected and pushed to move in the second direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320608463.0U CN219747648U (en) | 2023-03-25 | 2023-03-25 | Centering fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320608463.0U CN219747648U (en) | 2023-03-25 | 2023-03-25 | Centering fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219747648U true CN219747648U (en) | 2023-09-26 |
Family
ID=88072807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320608463.0U Active CN219747648U (en) | 2023-03-25 | 2023-03-25 | Centering fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219747648U (en) |
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2023
- 2023-03-25 CN CN202320608463.0U patent/CN219747648U/en active Active
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