CN113798987A - Coaxial adjusting structure of double-crank grinding and polishing machine and adjusting method thereof - Google Patents
Coaxial adjusting structure of double-crank grinding and polishing machine and adjusting method thereof Download PDFInfo
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- CN113798987A CN113798987A CN202111009960.0A CN202111009960A CN113798987A CN 113798987 A CN113798987 A CN 113798987A CN 202111009960 A CN202111009960 A CN 202111009960A CN 113798987 A CN113798987 A CN 113798987A
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- double
- polishing machine
- guide rod
- crank
- bearing seat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
A coaxial adjusting structure of a double-crank grinding and polishing machine comprises a double-crank grinding and polishing machine body, wherein a main bearing seat and an auxiliary bearing seat are arranged on the double-crank grinding and polishing machine body, a linear bearing is arranged on the main bearing seat, a guide rod is arranged on the auxiliary bearing seat and is arranged in the linear bearing, a positioning device for positioning the guide rod is formed on the auxiliary bearing seat, and a vibration instrument for detecting the vibration frequency of the linear bearing is arranged on the double-crank grinding and polishing machine body; a method for adjusting a coaxial adjusting structure of a double-crank grinding and polishing machine is carried out by using the coaxial adjusting structure of the double-crank grinding and polishing machine, and specifically comprises the following steps: s1: pre-tightening the guide rod through a positioning device; s2: the linear bearing and the guide rod are driven to swing through the rotation of the main bearing seat, so that the linear bearing and the guide rod tend to move in the same axial direction; s3: and observing the vibration meter, and locking the guide rod through the positioning device when the numerical value of the vibration meter reaches the minimum value.
Description
Technical Field
The invention relates to the technical field of polishing equipment, in particular to a coaxial adjusting structure of a double-crank grinding and polishing machine and an adjusting method thereof.
Background
The guide rod is fixedly installed on a secondary bearing seat of the conventional double-crank grinding and polishing machine, the linear bearing is fixedly installed on a main bearing seat, the guide rod is arranged in the linear bearing in a penetrating mode, the linear bearing moves on the guide rod through rotation of the main bearing seat in the polishing process, the linear bearing can deform downwards along the gravity direction due to the fact that the linear bearing is heavy in weight and is not coaxial with the guide rod, the guide rod cannot be conveniently inserted into and pulled out of the linear bearing, vibration is easily generated, the vibration is further transmitted to the ejector pin, the ejector pin is directly contacted with a polishing workpiece, and the polishing effect is affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a coaxial adjusting structure of a double-crank grinding and polishing machine and an adjusting method thereof, wherein the coaxial adjusting structure has the advantages of good vibration reduction effect, simplicity in adjustment and good polishing effect.
In order to solve the technical problems, the invention adopts the following technical scheme:
the coaxial adjusting structure of the double-crank grinding and polishing machine comprises a double-crank grinding and polishing machine body, wherein a main bearing seat and an auxiliary bearing seat are arranged on the double-crank grinding and polishing machine body, a linear bearing is arranged on the main bearing seat, a guide rod is arranged on the auxiliary bearing seat and is arranged in the linear bearing, a positioning device for positioning the guide rod is formed on the auxiliary bearing seat, and a vibrating instrument for detecting the vibration frequency of the linear bearing is arranged on the double-crank grinding and polishing machine body.
In this embodiment, the positioning device includes a positioning cavity provided in the counter bearing seat, one end of the guide rod is disposed in the positioning cavity, a threaded hole is provided at one end of the guide rod disposed in the positioning cavity, and a fastening screw is inserted into the counter bearing seat and connected to the threaded hole.
In this embodiment, the location chamber sets up to the holding chamber, the holding chamber outer shaping has carries out the location boss of location to the guide arm.
In this embodiment, the auxiliary bearing seat is detachably connected with the positioning boss.
In this embodiment, one side of the sub-bearing seat close to the linear bearing and one side surface of the positioning boss close to the linear bearing are smooth.
In this embodiment, a mounting rod is fixedly connected to the linear bearing, and a dial indicator is installed on the mounting rod.
In this embodiment, the electric cabinet is installed on the side of the double-crank polishing machine body.
A method for adjusting a coaxial adjusting structure of a double-crank grinding and polishing machine is carried out by using the coaxial adjusting structure of the double-crank grinding and polishing machine, and specifically comprises the following steps:
s1: pre-tightening the guide rod through a positioning device;
s2: the linear bearing and the guide rod are driven to swing through the rotation of the main bearing seat, so that the linear bearing and the guide rod tend to move in the same axial direction;
s3: and observing the vibration meter, and locking the guide rod through the positioning device when the numerical value of the vibration meter reaches the minimum value.
In this embodiment, in step S3, the guide bar is locked when the linear bearing moves to the shortest distance from the sub-bearing holder.
Compared with the prior art, the invention has the advantages that: the guide rod is pre-tightened through the positioning device, the main bearing seat drives the linear bearing to swing slowly through slow rotation, the guide rod is arranged in the linear bearing, the linear bearing drives the guide rod to swing, the linear bearing and the guide rod tend to move in a uniform axis direction through swinging, the higher the coaxiality is, the smaller the vibration generated by the linear bearing and the guide rod is, when a numerical value displayed on a vibration instrument reaches a minimum value, the guide rod is locked through the positioning device, the guide rod can be positioned through the positioning device, the linear bearing and the guide rod can move in the same axis direction through self-adaptive swinging of the linear bearing and the guide rod, and then the guide rod is fixed through the positioning device, so that the vibration can be reduced, the abrasion is reduced, the noise is reduced, the polishing quality of a workpiece is improved, and the service lives of the linear bearing and the guide rod are prolonged; by adopting the method, the guide rod can be positioned, so that the guide rod and the linear bearing move in the same axial direction, the generation of vibration is reduced, the polishing quality is improved, and the method is simple to operate and has small error.
Drawings
FIG. 1 is a perspective view of an embodiment 1 of a coaxial adjustment structure device of a double crank polishing machine according to the present invention;
FIG. 2 is a sectional view of an embodiment 1 of a coaxial adjusting mechanism of the double crank polishing machine of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial cross-sectional view of an embodiment 2 of a coaxial adjustment structure apparatus of a double crank polishing machine according to the present invention;
FIG. 5 is a partial cross-sectional view of an embodiment 3 of a coaxial adjustment structure apparatus of a double crank polishing machine according to the present invention;
FIG. 6 is a flow chart of a method for adjusting a coaxial adjusting structure of a double crank polishing machine according to the present invention.
The reference numerals in the figures denote:
1. a double crank grinding and polishing machine body; 11. an electric cabinet; 2. a main bearing housing; 3. a sub-bearing seat; 4. a linear bearing; 5. a guide bar; 6. a positioning device; 61. a positioning cavity; 62. a threaded hole; 63. fastening screws; 64. an accommodating cavity; 65. positioning the boss; 7. a vibration meter; 8. mounting a rod; 9. and (5) a dial indicator.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Apparatus example 1:
fig. 1 to 3 show a first embodiment of a coaxial adjustment structure of a double-crank polishing machine according to the present invention, which includes a double-crank polishing machine body 1, the double-crank polishing machine body 1 is provided with a main bearing seat 2 and an auxiliary bearing seat 3, the main bearing seat 2 is provided with a linear bearing 4, the auxiliary bearing seat 3 is provided with a guide rod 5 and arranged in the linear bearing 4, the auxiliary bearing seat 3 is formed with a positioning device 6 for positioning the guide rod 5, and the double-crank polishing machine body 1 is provided with a vibration meter 7 for detecting a vibration frequency of the linear bearing 4. The guide rod 5 is pre-tightened through the positioning device 6, the main bearing seat 2 drives the linear bearing 4 to swing slowly through slow rotation, the guide rod 5 is arranged in the linear bearing 4, the linear bearing 4 drives the guide rod 5 to swing, the linear bearing 4 and the guide rod 5 tend to move in a unified axial direction through swinging, the higher the coaxiality is, the smaller the vibration generated by the linear bearing 4 and the guide rod 5 is, when a numerical value displayed on the vibration instrument 7 reaches a minimum value, the guide rod 5 is locked through the positioning device 6, the guide rod 5 can be positioned through the positioning device 6, the linear bearing 4 and the guide rod 5 can move in the same axial direction through self-adaptive swinging of the linear bearing 4 and the guide rod 5, then the guide rod 5 is fixed through the positioning device 6, the guide rod 5 is prevented from moving in a polishing process, vibration can be reduced, abrasion is reduced, and noise is reduced, further improving the polishing quality of the workpiece and prolonging the service life of the linear bearing 4 and the guide rod 5.
In this embodiment, the positioning device 6 includes a positioning cavity 61 opened in the auxiliary bearing seat 3, one end of the guide rod 5 is arranged in the positioning cavity 61, a threaded hole 62 is opened at one end of the guide rod 5 arranged in the positioning cavity 61, and a fastening screw 63 is inserted in the auxiliary bearing seat 3 and connected with the threaded hole 62. The guide rod 5 is arranged in the positioning cavity 61, the guide rod 5 can be pre-tightened through the threaded hole 62 through the fastening screw 63, then the guide rod 5 and the linear bearing 4 can be adjusted to tend to move in the same axial direction, and after the adjustment is completed, the fastening screw 63 can fix the guide rod 5 through the threaded hole 62, so that the guide rod 5 is prevented from moving in the polishing process and the polishing quality is prevented from being influenced.
In this embodiment, the linear bearing 4 is fixedly connected with a mounting rod 8, and the mounting rod 8 is provided with a dial indicator 9. The distance between the detection head of the dial indicator 9 and the polishing workpiece can be detected, and when the distance between the detection head and the polishing workpiece tends to be stable, the linear bearing 4 and the guide rod 5 tend to move in the same axial direction, so that the guide rod 5 can be locked.
In this embodiment, an electric cabinet 11 is installed on the side surface of the double-crank polishing machine body 1. Compared with the electric cabinet 11 which is arranged in the double-crank grinding and polishing machine body 1, the electric cabinet 11 is convenient to dissipate heat, and the polishing quality is not influenced by transferring heat to a workpiece.
Apparatus example 2:
fig. 4 shows a second embodiment of the coaxial adjustment structure of a double crank lapping and polishing machine of the present invention, which is substantially the same as the embodiment 1 of the apparatus, except that: in the present embodiment, the positioning cavity 61 is provided as a receiving cavity 64, and a positioning boss 65 for positioning the guide rod 5 is formed outside the receiving cavity 64. Positioning boss 65 and auxiliary bearing seat 3 integrated into one piece, guide arm 5 passes positioning boss 65 and arranges in holding chamber 64, can fix a position guide arm 5 equally through positioning boss 65, then fastening screw 63 can carry out pretension and locking to guide arm 5 through screw hole 62, prevent that guide arm 5 from moving in the polishing process, and can prevent that linear bearing 4 directly makes auxiliary bearing seat 3 wearing and tearing with auxiliary bearing seat 3 contact, can prolong auxiliary bearing seat 3's life, reduce the maintenance cost.
Apparatus example 3:
fig. 5 shows a third embodiment of the coaxial adjustment structure of a double crank polishing machine according to the present invention, which is substantially the same as the embodiment 1 of the apparatus, except that: in the present embodiment, the sub-bearing holder 3 is detachably connected to the positioning boss 65. When the positioning boss 65 is worn seriously, the positioning boss 65 can be replaced through detachable connection, so that the maintenance is convenient, the whole auxiliary bearing seat 3 does not need to be replaced, and the maintenance cost is reduced.
In this embodiment, the side of the sub-bearing block 3 close to the linear bearing 4 and the side of the positioning boss 65 close to the linear bearing 4 are smooth. When the linear bearing 4 contacts with one side of the auxiliary bearing seat 3 and the linear bearing contacts with one side of the positioning boss 65 of the linear bearing 4, the linear bearing 4 can be prevented from shaking due to the fact that the surface of one side, close to the linear bearing 4, of the auxiliary bearing seat 3 and the surface of one side, close to the linear bearing 4, of the positioning boss 65 are uneven, the stable operation of the linear bearing 4 is guaranteed, and errors are reduced.
The method comprises the following steps:
fig. 6 shows an embodiment of the method for adjusting the coaxial adjusting structure of the double-crank polishing machine according to the present invention, which is performed by using the coaxial adjusting structure of the double-crank polishing machine, and specifically includes the following steps:
s1: the guide rod 5 is pre-tightened through a positioning device 6;
s2: the linear bearing 4 and the guide rod 5 are driven to swing through the rotation of the main bearing seat 2, so that the linear bearing 4 and the guide rod 5 tend to move in the same axial direction;
s3: and observing the vibration meter 7, and locking the guide rod 5 through the positioning device 6 when the value of the vibration meter 7 reaches the minimum.
By adopting the method, the guide rod 5 can be positioned, so that the guide rod 5 and the linear bearing 4 move in the same axial direction, the generation of vibration is reduced, the polishing quality is improved, the method is simple to operate, and the error is small.
In this embodiment, in step S3, the guide bar 5 is locked when the linear bearing 4 moves to the shortest distance from the sub-bearing holder 3. When the linear bearing 4 moves to the shortest distance from the secondary bearing seat 3, the moment of the linear bearing 4 is the smallest, and the coaxiality of the linear bearing 4 and the guide rod 5 is higher, so that the linear bearing 4 and the guide rod 5 run more stably, and the error is reduced.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. The utility model provides a coaxial adjustment structure of double crank throw machine which characterized in that: including double crank grinding and polishing machine body (1), double crank grinding and polishing machine body (1) facial make-up is equipped with main bearing seat (2) and auxiliary bearing seat (3), main bearing seat (2) facial make-up is equipped with linear bearing (4), auxiliary bearing seat (3) facial make-up is equipped with guide arm (5) and arranges in linear bearing (4), the shaping has positioner (6) of going on fixing a position guide arm (5) on auxiliary bearing seat (3), double crank grinding and polishing machine body (1) facial make-up is equipped with and carries out vibrometer (7) that detect linear bearing (4) vibration frequency.
2. The coaxial adjusting structure of the double-crank polishing machine according to claim 1, characterized in that: the positioning device (6) comprises a positioning cavity (61) arranged in the auxiliary bearing seat (3), one end of the guide rod (5) is arranged in the positioning cavity (61), a threaded hole (62) is formed in one end, arranged in the positioning cavity (61), of the guide rod (5), and a fastening screw (63) is arranged in the auxiliary bearing seat (3) in a penetrating mode and connected with the threaded hole (62).
3. The coaxial adjusting structure of the double-crank polishing machine according to claim 2, characterized in that: the positioning cavity (61) is arranged to be an accommodating cavity (64), and a positioning boss (65) for positioning the guide rod (5) is formed outside the accommodating cavity (64).
4. The coaxial adjusting structure of the double-crank polishing machine according to claim 3, characterized in that: the auxiliary bearing seat (3) is detachably connected with the positioning boss (65).
5. The coaxial adjusting structure of the double-crank polishing machine according to claim 4, characterized in that: one side of the auxiliary bearing seat (3) close to the linear bearing (4) and one side surface of the positioning boss (65) close to the linear bearing (4) are smooth.
6. The coaxial adjusting structure of the double crank polishing machine according to any one of claims 1 to 5, wherein: the linear bearing (4) is fixedly connected with an installation rod (8), and the installation rod (8) is provided with a dial indicator (9).
7. The coaxial adjusting structure of the double crank polishing machine according to any one of claims 1 to 5, wherein: an electric cabinet (11) is arranged on the side surface of the double-crank grinding and polishing machine body (1).
8. A method for adjusting a coaxial adjusting structure of a double-crank grinding and polishing machine is characterized by being carried out by the coaxial adjusting structure of the double-crank grinding and polishing machine according to any one of claims 1 to 7, and specifically comprising the following steps:
s1: the guide rod (5) is pre-tightened through a positioning device (6);
s2: the linear bearing (4) and the guide rod (5) are driven to swing through the rotation of the main bearing seat (2), so that the linear bearing (4) and the guide rod (5) tend to move in the same axial direction;
s3: and observing the vibration meter (7), and locking the guide rod (5) through the positioning device (6) when the numerical value of the vibration meter (7) reaches the minimum.
9. The method for adjusting the coaxial adjusting structure of the double-crank polishing machine according to claim 8, wherein: in step S3, the guide bar (5) is locked when the linear bearing (4) moves to the shortest distance from the sub-bearing seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009960.0A CN113798987B (en) | 2021-08-31 | 2021-08-31 | Coaxial adjusting structure of double-crank grinding and polishing machine and adjusting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009960.0A CN113798987B (en) | 2021-08-31 | 2021-08-31 | Coaxial adjusting structure of double-crank grinding and polishing machine and adjusting method thereof |
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| CN113798987A true CN113798987A (en) | 2021-12-17 |
| CN113798987B CN113798987B (en) | 2022-06-03 |
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