CN218156040U - Pneumatic inner diameter measuring mechanism for hole - Google Patents
Pneumatic inner diameter measuring mechanism for hole Download PDFInfo
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- CN218156040U CN218156040U CN202221878934.1U CN202221878934U CN218156040U CN 218156040 U CN218156040 U CN 218156040U CN 202221878934 U CN202221878934 U CN 202221878934U CN 218156040 U CN218156040 U CN 218156040U
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- linear guide
- diameter measuring
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Abstract
The utility model relates to a pneumatic inner diameter measuring mechanism for holes, a floating plate is arranged below a sliding plate and floats front and back, left and right relative to the sliding plate through a first connecting mechanism; the sliding plate is arranged below the fixed plate and slides up and down relative to the fixed plate through a second connecting mechanism, and the proximity switch is arranged between the fixed plate and the sliding plate; the precise main shaft penetrates through the fixed plate and the sliding plate, is installed on the floating plate and moves along with the movement of the floating plate, the upper end of the precise main shaft is connected with the pneumatic mechanism, the lower end of the precise main shaft is connected with the pneumatic inner diameter measuring head, and the precise main shaft drives the pneumatic inner diameter measuring head to rotate under the action of the pneumatic mechanism. Compared with the prior art, the utility model discloses a pneumatic mechanism and accurate main shaft have realized automatic the detection, and fixed plate-sliding plate-floating plate structure provides crashproof function and self-adaptation function, and detection efficiency promotes greatly, can replace manual handheld pneumatic internal diameter gauge head to guarantee the quality and the precision that the hole detected.
Description
Technical Field
The utility model belongs to the technical field of the internal diameter measurement technique and specifically relates to a pneumatic internal diameter measurement mechanism is used to hole.
Background
The automatic measurement of the aperture of the part is mostly realized by adopting a contact type measurement mode through a pneumatic measuring head. The pneumatic measuring instrument is used for measuring the hole diameter, the hole roundness and the hole taper with extremely high precision requirements, and the measuring principle is that a cylindrical measuring head (a guide measuring head) with a hole in a core part is inserted into a measured hole, the measuring head is in clearance fit with the measured hole, compressed air is introduced from the core part of the measuring head, the compressed air flows out through a fit clearance between the measuring head and the measured hole, the change of the clearance with different sizes can cause the change of the charged air pressure, an air-electricity converter converts the pressure change into a related electric signal to a data processing element, the size of the fit clearance is indirectly detected through detecting the air pressure, and then the diameter of the measured hole is calculated. For example, a pneumatic measuring head for inner diameter measurement disclosed in chinese patent CN201920277734.2 realizes that compressed air flows independently in a plurality of air inlet channels through a plurality of air inlet channels that are not communicated with each other, thereby realizing synchronous measurement of multiple points of a workpiece.
The traditional pneumatic measuring head is detected by manually inserting the measuring head into a measured hole, and manual operation is not required. However, with the increasingly fierce market competition, the requirements for detection and automation are higher and higher, and it is necessary to design and modify the detection equipment to improve the detection efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pneumatic internal diameter measurement mechanism for hole in order to overcome the defect that above-mentioned prior art exists, having realized automated inspection through pneumatic mechanism and accurate main shaft, fixed plate-sliding plate-floating plate structure provides crashproof function and self-adaptation function, and detection efficiency promotes greatly, can replace artifical handheld pneumatic internal diameter gauge head to guarantee the quality and the precision that the hole detected.
The purpose of the utility model can be realized through the following technical scheme:
a pneumatic inner diameter measuring mechanism for a hole comprises a floating plate, a sliding plate, a fixed plate, a pneumatic mechanism, a precision main shaft, a pneumatic inner diameter measuring head and a proximity switch;
the floating plate is arranged below the sliding plate and is connected with the sliding plate through a first connecting mechanism, and the floating plate floats front and back, left and right relative to the sliding plate through the first connecting mechanism;
the sliding plate is arranged below the fixed plate and is connected with the fixed plate through a second connecting mechanism, the sliding plate slides up and down relative to the fixed plate through the second connecting mechanism, and the proximity switch is arranged between the fixed plate and the sliding plate;
the precise main shaft penetrates through the fixed plate and the sliding plate, is installed on the floating plate and moves along with the movement of the floating plate, the upper end of the precise main shaft is connected with the pneumatic mechanism, the lower end of the precise main shaft is connected with the pneumatic inner diameter measuring head, and the precise main shaft drives the pneumatic inner diameter measuring head to rotate under the action of the pneumatic mechanism.
On the one hand, when pneumatic internal diameter gauge head bumps with the work piece, can lead to the sliding plate to shift up to make proximity switch send a letter, suggestion collision event, thereby avoid the anticollision, on the other hand, the floating plate with and above precision main shaft and pneumatic internal diameter gauge head can be in the horizontal plane around move a little, thereby make during pneumatic internal diameter gauge head can go up the chamfer entering detection hole of hole along the work piece, measuring mechanism has the self-adaptability.
Preferably, the first connecting mechanism comprises a first linear guide shaft, a first connecting sleeve, a second linear guide shaft and a second connecting sleeve, and the two first linear guide shafts and the two second linear guide shafts are fixed with each other through a connecting piece;
the lower end of the first connecting sleeve is connected with the upper surface of the floating plate, the two first linear guide shafts are restrained at the two ends of the floating plate through the first connecting sleeve and move relative to the floating plate, the upper end of the second connecting sleeve is connected with the lower end of the sliding plate, and the two second linear guide shafts are restrained at the two sides of the sliding plate through the second connecting sleeve and move relative to the sliding plate.
Preferably, the first connecting sleeve and the second connecting sleeve are dense bead sleeve assemblies and are respectively sleeved on the first linear guide shaft and the second linear guide shaft.
Preferably, the number of the first connecting sleeves is 4, and every two first connecting sleeves are arranged on the first linear guide shaft; the number of the second connecting sleeves is 4, and every two second connecting sleeves are arranged on the second linear guide shaft.
Preferably, the second connecting mechanism comprises a third linear guide shaft and a bushing assembly, the lower end of the third linear guide shaft is mounted on the sliding plate, the upper end of the third linear guide shaft passes through the fixed plate and is matched with the bushing assembly, and a bolt and a gasket on the upper end surface of the third linear guide shaft are in contact with the upper end surface of the bushing assembly to ensure that the sliding plate cannot fall off.
Preferably, the number of the third linear guide shafts is 4, and the third linear guide shafts are arranged at four corners of the sliding plate.
Preferably, the pneumatic mechanism comprises a rotary cylinder and an air cavity, the input end of the rotary cylinder is connected with the air cavity, and the output end of the rotary cylinder is connected with the precision spindle.
Preferably, a plurality of precision angular contact ball bearings are arranged in the precision spindle, connected with the rotary cylinder through a coupler, and driven by the rotary cylinder to rotate.
Preferably, the measuring mechanism further comprises a rotary encoder for measuring the rotation angle of the precision spindle.
Preferably, the measuring mechanism further comprises a first inductive sensor and a second inductive sensor for measuring the horizontal displacement of the floating plate in the front-back and left-right directions.
Preferably, the pneumatic inner diameter measuring head is a multi-channel pneumatic inner diameter measuring head, and parameters such as the diameter, the roundness and the cylindricity of an inner hole can be automatically calculated by rotating the inner hole of the workpiece for one circle.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) The pneumatic inner diameter measuring head is driven by the pneumatic mechanism and the precision spindle to rotate in the detection inner hole so as to measure related parameters, the measuring head does not need to be manually held, the automation degree is improved, the detection efficiency is greatly improved, and the quality and the precision of inner hole detection are guaranteed.
(2) A fixed plate-sliding plate structure is designed, the sliding plate can move up and down relative to the fixed plate, and a proximity switch arranged between the fixed plate and the sliding plate is matched, so that an anti-collision function is provided when the deviation between a measuring head and a detection inner hole is large.
(3) The floating plate can move left and right relative to the sliding plate, so that the pneumatic inner diameter measuring head can enter a detection inner hole along the chamfer in a self-adaptive manner, and the device has self-adaptability.
Drawings
Fig. 1 is a schematic structural view of the present invention;
reference numerals: 1. the device comprises a pneumatic inner diameter measuring head, 2, a floating plate, 3, a first connecting sleeve, 4, a first linear guide shaft, 5, a second linear guide shaft, 6, a first inductive sensor, 7, a third linear guide shaft, 8, a bushing assembly, 9, a precision main shaft, 10, a rotary encoder, 11, a coupler, 12, a rotary cylinder, 13, an air cavity, 14, a second inductive sensor, 15, a second connecting sleeve, 16, a sliding plate, 17 and a fixing plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the drawings, elements that are structurally identical are represented by like reference numerals, and elements that are structurally or functionally similar in each instance are represented by like reference numerals. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. Parts are exaggerated in the drawing where appropriate for clarity of illustration.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1:
a pneumatic inner diameter measuring mechanism for a hole is shown in figure 1 and comprises a floating plate 2, a sliding plate 16, a fixed plate 17, a pneumatic mechanism, a precision spindle 9, a pneumatic inner diameter measuring head 1 and a proximity switch;
the fixed plate 17, the sliding plate 16 and the floating plate 2 are arranged from top to bottom, sufficient openings are reserved on the fixed plate 17 and the sliding plate 16 for the precision spindle 9 to pass through and horizontally displace, the fixed plate 17 is mounted on external supporting equipment, such as an external rack, the position of the fixed plate 17 is kept fixed, the precision spindle 9 passes through the fixed plate 17 and the sliding plate 16 and is mounted on the floating plate 2 and moves along with the movement of the floating plate 2, the upper end of the precision spindle 9 is connected with the pneumatic mechanism, the lower end of the precision spindle 9 is connected with the pneumatic inner diameter measuring head 1, and the precision spindle 9 rotates under the action of the pneumatic mechanism and drives the pneumatic inner diameter measuring head 1 to rotate along with the movement of the floating plate 2.
The floating plate 2 is arranged below the sliding plate 16 and is connected with the sliding plate 16 through a first connecting mechanism, and the floating plate 2 floats front and back, left and right relative to the sliding plate 16 through the first connecting mechanism; the sliding plate 16 is disposed below the fixed plate 17 and connected to the fixed plate 17 by a second connecting mechanism, the sliding plate 16 slides up and down relative to the fixed plate 17 by the second connecting mechanism, and the proximity switch is installed between the fixed plate 17 and the sliding plate 16. In this embodiment, the proximity switch is mounted on the fixed plate 17, and when the sliding plate 16 moves upward to approach the proximity switch, the proximity switch is triggered to send a signal to indicate that a collision occurs, and an operator or a related control cabinet can take corresponding measures.
On the one hand, when pneumatic internal diameter gauge head 1 bumps with the work piece, can lead to sliding plate 16 to move up to make proximity switch send a letter, suggestion collision event, thereby avoid the anticollision, on the other hand, the floating plate 2 and the precision main shaft 9 and pneumatic internal diameter gauge head 1 on it can be in the horizontal plane around the back micro-movement, thereby make during pneumatic internal diameter gauge head 1 can follow the chamfer entering detection hole of hole on the work piece, measuring mechanism has the self-adaptability.
Specifically, the first coupling mechanism, which includes the first linear guide shaft 4, the first coupling sleeve 3, the second linear guide shaft 5, and the second coupling sleeve 15, allows the floating plate 2 to have two degrees of freedom of horizontal movement with respect to the sliding plate 16. Wherein, the two first linear guide shafts 4 and the two second linear guide shafts 5 are fixed with each other through connecting pieces; the lower end of the first connecting sleeve 3 is connected with the upper surface of the floating plate 2, the two first linear guide shafts 4 are constrained at the two ends of the floating plate 2 through the first connecting sleeve 3 and move relative to the floating plate 2, the upper end of the second connecting sleeve 15 is connected with the lower end of the sliding plate 16, and the two second linear guide shafts 5 are constrained at the two sides of the sliding plate 16 through the second connecting sleeve 15 and move relative to the sliding plate 16. It can be understood that, when the external force is applied, on one hand, the floating plate 2 and the first linear guide shaft 4 slide relatively through the first connecting sleeve 3, and on the other hand, the sliding plate 16 and the second linear guide shaft 5 slide relatively through the second connecting sleeve 15, and the first linear guide shaft 4 and the second linear guide shaft 5 are connected with each other, so that the transmission enables the floating plate 2 to slightly displace in the front-back and left-right directions of the horizontal plane relative to the sliding plate 16, so that the pneumatic inner diameter measuring head 1 can adaptively enter the detection inner hole along the chamfer.
In this embodiment, the first connection sleeve 3 and the second connection sleeve 15 are dense bead sleeve assemblies, the number of which is 4, and the first linear guide shaft 4 and the second linear guide shaft 5 are sleeved with each other. In other embodiments, the structures and the number of the first connecting sleeve 3 and the second connecting sleeve 15 can be adjusted according to the needs on the premise of ensuring the functions.
Specifically, the second connecting mechanism comprises a third linear guide shaft 7 and a bushing assembly 8, the lower end of the third linear guide shaft 7 is mounted on a sliding plate 16, the upper end of the third linear guide shaft passes through a fixing plate 17 and is matched with the bushing assembly 8, the sliding plate 16 restricts 3 degrees of freedom in the horizontal direction through the third linear guide shaft 7 and the bushing assembly 8, and a bolt and a gasket on the upper end face of the third linear guide shaft 7 are in contact with the upper end face of the bushing assembly 8 to ensure that the sliding plate 16 cannot fall off. It can be understood that when the pneumatic inner diameter measuring head 1 collides with a workpiece, the force is applied to the floating plate 2 and the sliding plate 16, so that the sliding plate 16 moves upwards, the state of the proximity switch is changed, and the proximity switch sends a signal, thereby realizing collision avoidance.
In this embodiment, the number of the third linear guide shafts 7 is 4, and the third linear guide shafts are provided at four corners of the slide plate 16. In other embodiments, the number and mounting position of the third linear guide shafts 7 may be adjusted as necessary while ensuring the function.
Specifically, the pneumatic mechanism comprises a rotary cylinder 12 and an MAS air chamber 13, the input end of the rotary cylinder 12 is connected with the MAS air chamber 13, the output end of the rotary cylinder 12 is connected with the precision spindle 9, a plurality of precision angular contact ball bearings are arranged in the precision spindle 9, the precision angular contact ball bearings are connected with the rotary cylinder 12 through a coupler 11, and the precision angular contact ball bearings rotate under the driving of the rotary cylinder 12. Wherein, the MAS air chamber 13, the air cylinder and the like can be arranged on external corollary equipment.
The measuring mechanism further comprises a rotary encoder 10, a first inductive sensor 6 and a second inductive sensor 14, wherein the rotary encoder 10 is used for measuring the rotation angle of the precision spindle 9, and the first inductive sensor 6 and the second inductive sensor 14 are respectively used for measuring the horizontal displacement amount of the floating plate 2 in the front-back direction and the left-right direction. The changes in the parameters of the measuring device during operation can be recorded by the rotary encoder 10, the first inductive sensor 6 and the second inductive sensor 14.
In this embodiment, the pneumatic inner diameter measuring head 1 is a multi-channel pneumatic inner diameter measuring head 1, and parameters such as the diameter, the roundness, the cylindricity and the like of an inner hole can be automatically calculated by rotating the inner hole of a workpiece for one circle. Furthermore, although the present application does not describe the specific structure and associated hardware of pneumatic inside diameter probe 1, it will be understood by those skilled in the art that the same may be configured as desired.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the principles of this invention. Therefore, the technical solutions that can be obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention by those skilled in the art should be within the scope of protection defined by the claims.
Claims (10)
1. The pneumatic inner diameter measuring mechanism for the hole is characterized by comprising a floating plate (2), a sliding plate (16), a fixed plate (17), a pneumatic mechanism, a precision main shaft (9), a pneumatic inner diameter measuring head (1) and a proximity switch;
the floating plate (2) is arranged below the sliding plate (16) and is connected with the sliding plate (16) through a first connecting mechanism, and the floating plate (2) floats front and back and left and right relative to the sliding plate (16) through the first connecting mechanism;
the sliding plate (16) is arranged below the fixed plate (17) and is connected with the fixed plate (17) through a second connecting mechanism, the sliding plate (16) slides up and down relative to the fixed plate (17) through the second connecting mechanism, and the proximity switch is arranged between the fixed plate (17) and the sliding plate (16);
the precise main shaft (9) penetrates through the fixed plate (17) and the sliding plate (16) and is installed on the floating plate (2) and moves along with the movement of the floating plate (2), the upper end of the precise main shaft (9) is connected with a pneumatic mechanism, the lower end of the precise main shaft is connected with the pneumatic inner diameter measuring head (1), and the precise main shaft (9) drives the pneumatic inner diameter measuring head (1) to rotate under the action of the pneumatic mechanism.
2. The pneumatic inner diameter measuring mechanism for holes of claim 1, characterized in that the first connecting mechanism comprises a first linear guide shaft (4), a first connecting sleeve (3), a second linear guide shaft (5) and a second connecting sleeve (15), and the two first linear guide shafts (4) and the two second linear guide shafts (5) are fixed to each other through a connecting piece;
the lower end of the first connecting sleeve (3) is connected with the upper surface of the floating plate (2), the two first linear guide shafts (4) are constrained at the two ends of the floating plate (2) through the first connecting sleeve (3) and move relative to the floating plate (2), the upper end of the second connecting sleeve (15) is connected with the lower end of the sliding plate (16), and the two second linear guide shafts (5) are constrained at the two sides of the sliding plate (16) through the second connecting sleeve (15) and move relative to the sliding plate (16).
3. A pneumatic bore diameter measuring mechanism for bore according to claim 2, characterized in that the first connecting sleeve (3) and the second connecting sleeve (15) are dense bead sleeve assemblies, respectively fitted over the first linear guiding shaft (4) and the second linear guiding shaft (5).
4. A pneumatic internal diameter measuring mechanism for holes according to claim 2, characterized in that the number of the first connecting sleeves (3) is 4, and two of the first connecting sleeves are arranged on the first linear guide shaft (4); the number of the second connecting sleeves (15) is 4, and every two second connecting sleeves are arranged on the second linear guide shaft (5).
5. A pneumatic inner diameter measuring mechanism for a hole according to claim 1, wherein the second connecting mechanism comprises a third linear guide shaft (7) and a bushing assembly (8), the third linear guide shaft (7) having a lower end mounted on the sliding plate (16) and an upper end passing through the fixing plate (17) and engaging with the bushing assembly (8).
6. A pneumatic inner diameter measuring mechanism for holes according to claim 5, wherein the number of the third linear guide shafts (7) is 4, and the third linear guide shafts are provided at four corners of the sliding plate (16).
7. A pneumatic bore diameter measuring mechanism for a bore according to claim 1, characterized in that the pneumatic mechanism comprises a rotary cylinder (12) and a pneumatic chamber (13), the input end of the rotary cylinder (12) is connected with the pneumatic chamber (13), and the output end is connected with the precision spindle (9).
8. The pneumatic inner diameter measuring mechanism for the hole is characterized in that a plurality of precise angular contact ball bearings are arranged in the precise main shaft (9), connected with the rotary cylinder (12) through a coupler (11), and driven by the rotary cylinder (12) to rotate.
9. A pneumatic internal diameter measuring mechanism for a hole according to claim 1, wherein the measuring mechanism further comprises a rotary encoder (10), the rotary encoder (10) being adapted to measure the rotation angle of the precision spindle (9).
10. A pneumatic inner diameter measuring mechanism for a hole according to claim 1, further comprising a first inductive sensor (6) and a second inductive sensor (14) for measuring a horizontal displacement amount of the floating plate (2) in front, rear, left and right directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221878934.1U CN218156040U (en) | 2022-07-20 | 2022-07-20 | Pneumatic inner diameter measuring mechanism for hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221878934.1U CN218156040U (en) | 2022-07-20 | 2022-07-20 | Pneumatic inner diameter measuring mechanism for hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218156040U true CN218156040U (en) | 2022-12-27 |
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ID=84594254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221878934.1U Active CN218156040U (en) | 2022-07-20 | 2022-07-20 | Pneumatic inner diameter measuring mechanism for hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218156040U (en) |
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2022
- 2022-07-20 CN CN202221878934.1U patent/CN218156040U/en active Active
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