CN116100466A - Measurement and adjustment device for grinding eccentric quantity - Google Patents
Measurement and adjustment device for grinding eccentric quantity Download PDFInfo
- Publication number
- CN116100466A CN116100466A CN202310160358.XA CN202310160358A CN116100466A CN 116100466 A CN116100466 A CN 116100466A CN 202310160358 A CN202310160358 A CN 202310160358A CN 116100466 A CN116100466 A CN 116100466A
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- Prior art keywords
- sliding block
- grinding
- block
- measuring
- slide block
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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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
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a measuring and adjusting device for grinding eccentric quantity, which relates to the field of grinding, and comprises an upper sliding block, a lower sliding block, a dial gauge, a transmission worm and a three-jaw chuck, wherein one side of the three-jaw chuck clamps and positions a workpiece to be measured, and the other side of the three-jaw chuck is fixedly provided with the lower sliding block; an upper sliding block is arranged above the lower sliding block, a transmission worm is arranged in the upper sliding block in a relative rotation manner, and the transmission worm is in threaded transmission with the lower sliding block; the dial indicator is arranged on the upper sliding block, and a measuring head of the dial indicator is propped against the surface of the lower sliding block; the upper sliding block is provided with a positioning rod which is connected with a main shaft of the grinding machine through a magnetic clamp. The invention provides a magnetic type support grinding eccentric amount measuring and adjusting device which is simple in structure and easy to operate, and can be used for rapidly measuring a specific numerical value of the support grinding eccentric amount and adjusting the eccentric amount to a required numerical value by matching with a support block. The method is favorable for researching and analyzing grinding, and improves the quality of products and the analysis and research after the failure of the products.
Description
Technical Field
The invention relates to the field of grinding, in particular to a device for measuring and adjusting eccentric quantity of grinding.
Background
Grinding, also known as grinding, is a process commonly used in the machining arts. During the grinding process, the actual rotation center of the workpiece is deviated from the center of the main shaft by the eccentric amount. The existence of the eccentric quantity can reduce the grinding precision of the workpiece and influence the subsequent processing and use of the workpiece. In the bearing manufacturing industry, the adjustment and measurement of the eccentric amount of an electromagnetic coreless clamp are always an unresolved problem. The eccentric amount measurement has no special measuring tool at present, and is mainly re-measured by repeated debugging of an experienced operator, so that the traditional measurement method is very difficult and is difficult to obtain accurate values, and a lot of unnecessary troubles are brought to the work. The success rate of the manual adjustment process is low, the adjustment process time is long, and the overall efficiency is low. The actual eccentric amount can not be accurately controlled by manual adjustment, and can only be indirectly checked by trial grinding.
Chinese patent document (CN 205651220U) discloses an eccentric adjusting device of an electromagnetic coreless clamp for a bearing ring, which comprises a circular eccentric sleeve, a first positioning block fixedly connected to the eccentric sleeve, a circular eccentric ring connected to the eccentric sleeve, and a second positioning block fixedly connected to the eccentric ring; the first positioning block comprises an eccentric sleeve connecting part and an adjusting part, and a strip-shaped hole which is connected with the adjusting part a on the first positioning block in a sliding fit manner is formed in the diameter direction on the eccentric ring; the second positioning block comprises an eccentric ring connecting part and an adjusting part b, and the eccentric amount of the eccentric ring relative to the eccentric sleeve can be conveniently adjusted by adjusting the distance between the first positioning block and the second positioning block, so that the eccentric amounts of the two supporting blocks can be conveniently adjusted.
However, this solution is only used for adjustment, which cannot be used for measuring the eccentric amount, and the structure is relatively complicated, the number of actuators to be fixed per adjustment is excessive, and the versatility and flexibility are poor due to the fact that the eccentric amount standard block and the standard measuring ferrule are to be manufactured.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a device for measuring and adjusting the grinding eccentric quantity, by which the specific numerical value of the grinding eccentric quantity can be rapidly measured and supported, and the eccentric quantity can be adjusted to a required numerical value by matching with a supporting block. The method is favorable for researching and analyzing grinding, and improves the quality of products and the analysis and research after the failure of the products.
The invention aims at being completed by the following technical scheme: the device for measuring and adjusting the grinding eccentric quantity comprises an upper sliding block, a lower sliding block, a dial gauge, a transmission worm and a three-jaw chuck, wherein one side of the three-jaw chuck clamps and positions a workpiece to be measured through jaws, a chuck positioning block is fixed on the other side of the three-jaw chuck, and the lower sliding block is fixed with the three-jaw chuck through the chuck positioning block; an upper slide block is arranged above the lower slide block, a transmission worm is arranged in the upper slide block in a relatively rotating manner, one end of the transmission worm extends out of the upper slide block, the other end of the transmission worm is in threaded transmission with the lower slide block, a guide hole is formed in the lower slide block, one end of a guide rod is fixed in the upper slide block, the other end of the guide rod is supported in the guide hole, and the transmission worm drives the lower slide block to move relative to the upper slide block and is guided by the guide rod; the dial indicator is arranged on the upper sliding block, and a measuring head of the dial indicator is propped against the surface of the lower sliding block and is used for measuring the moving distance of the lower sliding block relative to the upper sliding block; the surface of the upper sliding block, which is away from the three-jaw chuck, is provided with a positioning rod, the positioning rod is connected with a main shaft of the grinding machine through a magnetic attraction clamp, and when the upper sliding block and the lower sliding block are folded, the rotation center of a workpiece to be tested coincides with the rotation center of the main shaft of the grinding machine.
As a further technical scheme, a baffle is arranged at the position, extending out of the upper sliding block, of the transmission worm, and the baffle is used for limiting the stroke of axial movement of the transmission worm.
As a further technical scheme, the chuck positioning block is fixed and positioned at the center hole of the chuck of the three-jaw chuck through the positioning column.
As a further technical scheme, the guide holes are symmetrically formed in two sides of the lower sliding block, sleeve-type linear ball bearings are arranged in the guide holes through clamp springs, and the guide rods are supported by the sleeve-type linear ball bearings.
As a further technical scheme, the locating rod is fixed on the upper sliding block through an axle center locating block.
As a further technical scheme, the lower sliding block is provided with an avoidance groove at the position corresponding to the positioning rod.
The beneficial effects of the invention are as follows:
1. converting the distance between the rotation center of the workpiece to be measured and the rotation center of the main shaft of the grinding machine into the distance of the relative motion between the upper sliding block and the lower sliding block, and visually displaying the distance through a dial indicator to realize the measurement of the grinding eccentric quantity;
2. the device can rapidly, simply and conveniently detect and adjust and determine the specific value of the eccentric amount of grinding, has simple structure, convenient operation and strong universality, and is applicable to various measurement scenes; the method is favorable for researching and analyzing grinding, and improves the quality of products and the analysis and research after the failure of the products.
Drawings
Fig. 1 is a schematic perspective view of fig. 1 of the present invention.
Fig. 2 is a schematic perspective view of fig. 2 according to the present invention.
Fig. 3 is a schematic left-view structure of the present invention.
Fig. 4 is a cross-sectional view A-A of fig. 3.
Fig. 5 is a schematic view of the structure of the present invention at the time of measurement.
Fig. 6 is a schematic diagram of a connection structure between a chuck positioning block and a three-jaw chuck according to the present invention.
Reference numerals illustrate: the device comprises an upper sliding block 1, a lower sliding block 2, a sleeve-type linear ball bearing 3, a guide rod 4, a clamp spring 5, a dial indicator 6, a transmission worm 7, a positioning rod 8, a three-jaw chuck 9, a baffle 10, a workpiece to be tested 11, a magnetic attraction clamp 12, a chuck positioning block 13, a chuck center hole 14, a positioning column 15, a guide hole 16, an axle center positioning block 17 and an avoidance groove 18.
Detailed Description
The invention will be described in detail below with reference to the attached drawings:
examples: as shown in figures 1-6, the device for measuring and adjusting the grinding eccentric quantity comprises an upper sliding block 1, a lower sliding block 2, a sleeve-type linear ball bearing 3, a guide rod 4, a clamp spring 5, a dial indicator 6, a transmission worm 7, a positioning rod 8, a three-jaw chuck 9, a baffle 10, a workpiece 11 to be measured, a magnetic attraction clamp 12, a chuck positioning block 13, a chuck center hole 14, a positioning column 15, a guide hole 16, an axle center positioning block 17 and an avoidance groove 18.
As shown in fig. 5, the left side of the three-jaw chuck 9 clamps and positions the workpiece 11 to be measured through the jaws, the axis of the rotation center of the workpiece 11 to be measured is O1 in fig. 5, the right side of the three-jaw chuck 9 is fixed with a chuck positioning block 13, and the lower slider 2 is fixed with the three-jaw chuck 9 through the chuck positioning block 13. Referring to fig. 1, an upper slider 1 is arranged above a lower slider 2, a driving worm 7 is relatively rotatably installed in the upper slider 1, the upper end of the driving worm 7 extends out of the upper slider 1 and can be held and rotated by a inspector, and the lower end of the driving worm 7 is in threaded transmission with the lower slider 2. As shown in fig. 4, guide holes 16 are formed on both sides of the lower slider 2, the upper ends of the guide rods 4 are fixed (interference fit) in the upper slider 1, and the lower ends of the guide rods 4 are supported in the guide holes 16, preferably, sleeve-type linear ball bearings 3 are mounted in the guide holes 16 through clamp springs 5, and the guide rods 4 are supported (relatively slidable) by the sleeve-type linear ball bearings 3. When the transmission worm 7 drives the lower slide block 2 to move relative to the upper slide block 1 and is opened or closed along the vertical direction in fig. 1, the guide rod 4 realizes the guiding. The dial indicator 6 is installed on the upper sliding block 1, and the measuring head of the dial indicator 6 penetrates through the upper sliding block 1 and then abuts against the upper surface of the lower sliding block 2 (as shown in fig. 4), so that the dial indicator 6 can measure the distance of the movement of the lower sliding block 2 relative to the upper sliding block 1, and the distance is equal to the distance between the rotation center O1 of the workpiece 11 to be measured and the rotation center O2 of the main shaft of the grinding machine, namely the eccentric amount of grinding. Referring to fig. 5, a positioning rod 8 is installed on the surface of the upper slider 1 facing away from the three-jaw chuck 9, the positioning rod 8 is connected with a main shaft of a grinding machine through a magnetic attraction clamp 12, when the upper slider 1 and the lower slider 2 are completely folded, the rotation center O1 of the workpiece 11 to be measured is coincident with the rotation center O2 of the main shaft of the grinding machine, and at the moment, the reading of the dial indicator 6 is set to zero.
Preferably, a baffle 10 is mounted at the position where the driving worm 7 extends out of the upper slider 1, and the baffle 10 can limit the axial movement stroke of the driving worm 7 when the driving worm 7 is rotated.
Referring to fig. 6, the chuck positioning block 13 is fixed and positioned at the chuck center hole 14 of the three-jaw chuck 9 by the positioning post 15. The lower slide block 2 is fixed on the chuck positioning block 13 through threaded connection. Preferably, the positioning rod 8 is screwed and fixed on the upper slider 1 through the axle center positioning block 17. And an avoidance groove 18 is formed in the position, corresponding to the positioning rod 8, on the lower slide block 2, so that the positioning rod 8 can be avoided when the upper slide block 1 and the lower slide block 2 are completely folded.
The working process of the invention comprises the following steps: during measurement, the measured workpiece 11 is clamped and positioned by the clamping jaws of the three-jaw chuck 9, then the transmission worm 7 is rotated to enable the upper slide block 1 and the lower slide block 2 to be completely folded, at the moment, the rotation center O1 of the measured workpiece 11 is overlapped with the rotation center O2 of the main shaft (positioning rod) of the grinding machine, namely, the eccentric amount is 0, and the reading of the dial indicator 6 at the moment is set to be zero. Then, the driving worm 7 is gradually screwed to enable the upper slider 1 to slide relative to the lower slider 2, as shown in fig. 5, the rotation center O1 of the workpiece 11 to be measured and the rotation center O2 of the positioning rod 8 are eccentric, and at this time, the reading of the dial indicator 6 is the eccentric amount, so that the eccentric amount can be measured or adjusted.
It should be understood that equivalents and modifications to the technical scheme and the inventive concept of the present invention should fall within the scope of the claims appended hereto.
Claims (6)
1. The utility model provides a measurement and adjusting device of grinding eccentric amount which characterized in that: the three-jaw chuck comprises an upper sliding block (1), a lower sliding block (2), a dial indicator (6), a transmission worm (7) and a three-jaw chuck (9), wherein one side of the three-jaw chuck (9) clamps and positions a workpiece (11) to be measured through jaws, a chuck positioning block (13) is fixed on the other side of the three-jaw chuck (9), and the lower sliding block (2) is fixed with the three-jaw chuck (9) through the chuck positioning block (13); an upper slide block (1) is arranged above the lower slide block (2), a transmission worm (7) is installed in the upper slide block (1) in a relatively rotating manner, one end of the transmission worm (7) extends out of the upper slide block (1), the other end of the transmission worm (7) is in threaded transmission with the lower slide block (2), a guide hole (16) is formed in the lower slide block (2), one end of a guide rod (4) is fixed in the upper slide block (1), the other end of the guide rod (4) is supported in the guide hole (16), and the transmission worm (7) drives the lower slide block (2) to move relative to the upper slide block (1) and guide the lower slide block by the guide rod (4); the dial indicator (6) is arranged on the upper sliding block (1), and a measuring head of the dial indicator (6) is propped against the surface of the lower sliding block (2) and is used for measuring the moving distance of the lower sliding block (2) relative to the upper sliding block (1); the surface of the upper sliding block (1) deviating from the three-jaw chuck (9) is provided with a positioning rod (8), the positioning rod (8) is connected with a grinding machine spindle through a magnetic clamp (12), and when the upper sliding block (1) and the lower sliding block (2) are folded, the rotation center of a workpiece (11) to be tested is coincident with the rotation center of the grinding machine spindle.
2. The grinding eccentricity measuring and adjusting device according to claim 1, wherein: a baffle (10) is arranged at the position, extending out of the upper sliding block (1), of the transmission worm (7), and the baffle (10) is used for limiting the stroke of the axial movement of the transmission worm (7).
3. The grinding eccentricity measuring and adjusting device according to claim 2, wherein: the chuck positioning block (13) is fixed and positioned at a chuck center hole (14) of the three-jaw chuck (9) through a positioning column (15).
4. The grinding eccentricity measuring and adjusting device according to claim 3, wherein: the guide holes (16) are symmetrically formed in two sides of the lower sliding block (2), sleeve-type linear ball bearings (3) are arranged in the guide holes (16) through clamp springs (5), and the guide rods (4) are supported by the sleeve-type linear ball bearings (3).
5. The device for measuring and adjusting the grinding eccentricity according to claim 4, wherein: the positioning rod (8) is fixed on the upper sliding block (1) through an axle center positioning block (17).
6. The device for measuring and adjusting the grinding eccentricity according to claim 5, wherein: and an avoidance groove (18) is formed in the position, corresponding to the positioning rod (8), of the lower sliding block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310160358.XA CN116100466A (en) | 2023-02-16 | 2023-02-16 | Measurement and adjustment device for grinding eccentric quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310160358.XA CN116100466A (en) | 2023-02-16 | 2023-02-16 | Measurement and adjustment device for grinding eccentric quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116100466A true CN116100466A (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310160358.XA Pending CN116100466A (en) | 2023-02-16 | 2023-02-16 | Measurement and adjustment device for grinding eccentric quantity |
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| Country | Link |
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| CN (1) | CN116100466A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117483945A (en) * | 2023-12-29 | 2024-02-02 | 常州戴芮珂机电科技有限公司 | Air chuck structure of laser cutting machine |
-
2023
- 2023-02-16 CN CN202310160358.XA patent/CN116100466A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117483945A (en) * | 2023-12-29 | 2024-02-02 | 常州戴芮珂机电科技有限公司 | Air chuck structure of laser cutting machine |
| CN117483945B (en) * | 2023-12-29 | 2024-03-19 | 常州戴芮珂机电科技有限公司 | Air chuck structure of laser cutting machine |
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