CN219532479U - Centering clamping device of large-diameter inner gear ring for gear measuring instrument - Google Patents
Centering clamping device of large-diameter inner gear ring for gear measuring instrument Download PDFInfo
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- CN219532479U CN219532479U CN202223593764.5U CN202223593764U CN219532479U CN 219532479 U CN219532479 U CN 219532479U CN 202223593764 U CN202223593764 U CN 202223593764U CN 219532479 U CN219532479 U CN 219532479U
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- measuring instrument
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a centering and clamping device of a large-diameter inner gear ring for a gear measuring instrument, which comprises the following components: the device comprises a supporting bar, a centering seat and a sliding positioning seat, wherein the center of the centering seat is provided with a centering hole for being precisely matched with a positioning center of a gear measuring instrument workbench, a first fixing hole is formed in the supporting bar for fixing a centering clamping device on the gear measuring instrument workbench, a plurality of connecting ports are formed in the side wall of the centering seat, each connecting port is connected with a supporting bar, one end, far away from the centering seat, of the supporting bar is slidably connected with the sliding positioning seat, a plurality of positioning steps are formed in the sliding positioning seat, the positioning steps are all arranged towards the centering seat, and the distance between the longitudinal end face of each positioning step and the outer end face of the sliding positioning seat is precise.
Description
Technical Field
The utility model belongs to the technical field of precision measurement of an inner tooth part of a large-diameter inner tooth ring, and particularly relates to a centering and clamping device of the large-diameter inner tooth ring for a gear measuring instrument.
Background
The speed reducer matched with the engineering vehicle in batches is provided with a first-stage annular gear and a second-stage annular gear, and is structurally characterized in that the thin wall is large in diameter (more than phi 250), and the inner ring is a tooth part. After the internal tooth processing of the workpiece is finished, the precision of the internal tooth part of the workpiece must be measured, the industry mostly adopts an imported gear measuring instrument to measure, and the workpiece axle center must be ensured to be concentric with the gear measuring instrument workbench center before the measurement.
The tooth part precision measurement of the large-diameter internal tooth is carried out, and the common measurement method in the domestic external gear industry is as follows: (1) 3 parallel supporting blocks are arranged on a workbench of the gear measuring instrument, a measured workpiece is placed on the supporting blocks, when the measured workpiece is placed, the distance between the outer circumference of the workpiece and an outer measuring needle is visually observed, and the workpiece is primarily knocked; before measurement, the auxiliary function of centering a part provided by the gear measuring instrument is utilized, the workpiece is required to be tightly stared and the force is controlled by tapping for multiple times on the gear measuring instrument workbench, so that the workpiece is prevented from being collided with a measuring needle, the center of the workpiece is manually aligned to be concentric with the center of the workbench, then the measuring needle for the alignment center is manually replaced by a measuring needle special for the inner teeth of the gear measuring instrument, the inner teeth and the teeth can be measured, the synchronous movement of the workpiece and the gear measuring instrument workbench is ensured in the measuring process, otherwise, the workpiece and the gear measuring instrument workbench are fixed by a magnetic base; (2) when the three claws clamp the outer diameter of the measured workpiece, the concentricity of the measured workpiece and the center of the gear measuring instrument workbench is within 0.06, but for the workpiece (phi 250 or more) with a large-diameter annular gear, the maximum clamping diameter of the currently imported precision chuck is phi 240, the dead weight is about 21kg, and the rated load of the gear measuring instrument workbench is easily exceeded after the base and the workpiece are installed, so that the currently vast majority of the first measuring proposal is selected, but the measuring efficiency of the proposal is lower, and particularly, the whole processes of assembling and disassembling the workpiece and centering the workpiece require careful operation of operators.
Therefore, in order to improve the measurement efficiency, reduce the measurement cost and the working strength of personnel, and meet the production takt requirement, a clamping device for the large-diameter annular gear measuring instrument, which is light in weight and convenient and adjustable in clamping range, needs to be developed.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the large-diameter annular gear centering and clamping device for the gear measuring instrument, which is light in use, large in clamping range, capable of adjusting the clamping diameter at will in the measuring range and suitable for measuring the accuracy of the inner tooth part of the thin-wall large annular gear.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a large diameter ring gear centering and clamping device for a gear measuring instrument, comprising: support bar, centering seat and location seat that slides, centering seat center is provided with the centering hole and is used for with the top accurate cooperation of gear measuring apparatu workstation location, set up first fixed orifices on the support bar and be used for fixing centering clamping device on gear measuring apparatu workstation, centering seat lateral wall is provided with a plurality of connection ports, be connected with a support bar on each connection port, the one end sliding connection who keeps away from centering seat on the support bar has a location seat that slides, be provided with a plurality of location steps on the location seat that slides, location step all sets up towards the centering seat, the longitudinal end face of location step is the accurate size with the distance of the outer terminal surface of location seat that slides.
Further, the aperture of the centering hole isThe centering seat is provided with a second fixing hole for fixing the supporting bar on the centering seat.
Further, a plurality of concave arcs facing the centering holes are arranged on the outer side wall of the centering seat at intervals, and connecting ports of the centering seat are formed among the concave arcs.
Further, a first groove is formed in the connecting port of the centering seat, and the fixed end of the supporting bar is precisely matched and connected with the first groove of the centering seat through a screw.
Further, the plurality of support bars are the same size.
Further, the top end of the supporting bar is provided with a scale bar, and corresponding score lines on the scale bar are all based on the center of a centering hole of the centering seat.
Further, a second groove is formed in each of the two side walls of the supporting bar.
Further, the bottom of the sliding positioning seat is provided with a sliding guide groove, and the sliding positioning seat is arranged on the supporting bar in a sliding clamping manner through the sliding guide groove.
Further, the sliding positioning seat is positioned at a fixed position on the supporting bar through the locking screw.
Further, the distances from the outer end surfaces of the sliding positioning seats to the longitudinal end surfaces of the positioning steps are the same.
Compared with the prior art, the utility model has at least the following beneficial effects:
the utility model provides a centering and clamping device for a large-diameter annular gear for a gear measuring instrument, which consists of a centering seat, a supporting bar and a sliding positioning seat, wherein a centering hole of the centering seat is in precise fit with a center of the gear measuring instrument, the sliding positioning seat can slide on the supporting bar to adjust the clamping distance, the positioning and clamping of the large-diameter annular gear with the diameter of 200-420 can be realized, the weight of the whole centering and clamping device is 5.8Kg, the assembly and the disassembly are light, the device is flexibly suitable for the precise measurement of the internal tooth parts of various large-diameter annular gears, and the measuring efficiency can be improved to 10 min/piece from 25 min/piece.
The concentricity error between the center of the clamping device and the center of the workbench of the gear measuring instrument is not more than 0.02, and the concentricity error is not more than 0.06 when a journal is used for reference.
The size of the centering hole of the centering seat isCan be precisely matched with the center of the gear measuring instrument.
The shape of the sliding positioning seat can be designed according to the structure of the workpiece, so that the clamping of a special workpiece is realized, and the application range is wide.
Drawings
FIG. 1 is a schematic diagram of a large diameter ring gear centering and clamping device for a gear measuring instrument;
FIG. 2 is a schematic view of a centering seat;
FIG. 3 is a schematic view of a support bar;
FIG. 4 is a schematic view of a slide positioning seat;
in the accompanying drawings: 1. a support bar; 11. a scale bar; 12. a second groove; 13. a first fixing hole; 2. a centering seat; 21. a centering hole; 22. a second fixing hole; 23 connection ports; 3. a screw; 4. a sliding positioning seat; 5. a locking screw; 6. a first positioning step; 7. a second positioning step; 8. and a sliding guide groove.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description.
The original measuring method for measuring the tooth precision of the large-diameter annular gear has the following problems: the center of the workpiece is aligned to be concentric with the center of the workbench of the gear measuring instrument by knocking the workpiece for multiple times, so that the measurement can be performed by using a journal reference function; the outer circle of the workpiece is clamped by the sliding positioning seat of the novel centering clamping device, and the workpiece center and the center of the gear measuring instrument workbench can be ensured to be concentric by ensuring that the sliding positioning seat is positioned on the concentric circle of the gear measuring instrument workbench center.
As shown in fig. 1, the centering clamping device of the utility model comprises a centering seat 2, a supporting bar 1 and a sliding positioning seat 4, wherein the centering seat 2 is precisely matched with a positioning center of a gear measuring instrument workbench through a centering hole 21 which is arranged in the center, and the aperture of the centering hole 21 isThe outer side wall of the centering seat 2 is provided with a plurality of connecting ports 23, and each connecting port 23 of the centering seat 2 is provided withThe device is connected with a supporting bar 1, the supporting bar 1 is fixed with a centering seat 2 through a second fixing hole 22, the sizes of the plurality of fixed supporting bars 1 are the same, one end of the supporting bar 1, which is far away from the centering seat 2, is slidably connected with a sliding positioning seat 4, the sliding positioning seat 4 is provided with a plurality of positioning steps towards the centering seat 2, the distance between the longitudinal end face of the positioning step and the outer end face of the sliding positioning seat 4 is an accurate size, and a centering clamping device is fixed with a gear measuring instrument workbench through a first fixing hole 13 of the supporting bar 1;
preferably, a plurality of concave arcs facing the centering holes 21 are arranged on the outer side wall of the centering seat 2 at intervals, the plurality of concave arcs are arranged to facilitate the taking of the centering seat 2, and a connecting port 23 of the centering seat 2 is formed among the plurality of concave arcs, as shown in fig. 2;
preferably, three concave arcs are provided at least to form 3 connection ports 23;
preferably, a first groove is arranged on the connecting port 23 of the centering seat 2, and the fixed end of the supporting bar 1 is precisely matched and connected with the first groove of the centering seat 2 through a screw 3, as shown in fig. 2;
preferably, as shown in fig. 3, the top end of the supporting bar 1 is provided with a scale bar 11, corresponding score lines on the scale bar 11 are all based on the center of a centering hole 21 of the centering seat 2, the two side walls of the supporting bar 1 are provided with second grooves 12 for being convenient to hold, and the first fixing holes 13 are based on the center of the centering hole 21 of the centering seat 2 and are used for fixing the supporting bar 1 on a gear measuring instrument workbench, as shown in fig. 3;
preferably, as shown in fig. 4, the bottom of the sliding positioning seat 4 is provided with a sliding guide groove 8, the sliding guide groove 8 is slidably arranged on the supporting bar 1, and the positioning of the sliding positioning seat 4 on the supporting bar 1 is realized through the locking screw 5, as shown in fig. 4.
The sliding positioning seat 4 is provided with a first positioning step 6 and a second positioning step 7, and the horizontal plane and the longitudinal plane of the first positioning step 6 and the second positioning step 7 and the outer end surface of the sliding positioning seat 4 are all precision machining surfaces.
Preferably, the screw 3 is an M6 inner hexagon screw, and the locking screw 5 is an M8 inner hexagon locking screw;
when the device is used for measuring the internal teeth of the large-diameter annular gear:
the centering hole 21 of the centering seat 2 is sleeved on the positioning center of the workbench of the gear measuring instrument by holding the second grooves 12 of the centering seat 2 in three concave arcs or the supporting bars 1, and the centering seat 2The centering hole 21 is in precise fit with the center, the supporting bar 1 is fixed on the centering seat 2 through the M6 screw arranged in the second fixing hole 22, and the supporting bar 1 is fixed on the gear measuring instrument workbench through the M8 screw arranged in the first fixing hole 13, so that the centering and fixing of the device on the gear measuring instrument workbench are completed;
the clamping distances from the outer end surfaces of the 3 sliding positioning seats 4 to the longitudinal end surfaces of the first positioning step 6 and the second positioning step 7 are the same, the radius of the clamping excircle of the workpiece is measured by using a digital vernier caliper, and the positioning distance from the longitudinal end surfaces of the clamping steps on the sliding positioning seats 4 to the outer end surfaces is added to obtain the distance from the outer end surfaces of the sliding positioning seats 4 to the circle center of the centering hole 21 of the centering seat 2;
the distance A from the tail end of the three support bars 1 to the center of the centering hole 21 of the centering seat 2 is the same, the distance A from the tail end of the support bar 1 to the center of the centering hole 21 of the centering seat 2 is subtracted from the distance from the outer end face of the sliding positioning seat 4 to the center of the centering hole 21 of the centering seat 2, namely the distance between the tail end of the support bar 1 and the outer end face of the sliding positioning seat 4, namely the dimension B (see figure 1), after the dimension B is calculated, the outer end faces of the 3 sliding positioning seats are adjusted to be at the dimension B by using a digital display depth gauge, and the same distance between the longitudinal planes of the positioning steps on the 3 sliding positioning seats 4 and the center line of the workbench of the gear measuring instrument can be ensured;
after cleaning the workpiece, the workpiece to be measured is lightly placed on a positioning step of the adjusted sliding positioning seat 4, after the workpiece is inspected and placed stably, the gear measuring instrument needle is manually replaced to be an internal tooth special needle, the journal reference function of the gear measuring instrument software is called, journal reference measurement is carried out on the internal tooth minor diameter of the workpiece to be measured, the needle is not manually knocked and replaced in the whole process, and the measurement process is about 5-10 min/workpiece.
Claims (10)
1. The utility model provides a gear measurement is centering clamping device of major diameter ring gear for appearance which characterized in that includes: support bar (1), centering seat (2) and location seat (4) slide, centering seat (2) center is provided with centering hole (21) and is used for with the top accurate cooperation of gear measuring apparatu workstation location, set up first fixed orifices (13) on support bar (1) and be used for fixing centering clamping device on the gear measuring apparatu workstation, centering seat (2) lateral wall is provided with a plurality of connecting ports (23), be connected with one support bar (1) on each connecting port (23), the one end sliding connection who keeps away from centering seat (2) on support bar (1) has a location seat (4) slide, be provided with a plurality of location steps on location seat (4) slide, location step all sets up towards centering seat (2), the longitudinal end of location step is the accurate size with the distance of the locating seat (4) outer terminal surface that slides.
2. The large-diameter ring gear centering and clamping device for a gear measuring instrument according to claim 1, wherein the bore diameter of the centering hole (21) isThe centering seat (2) is provided with a second fixing hole (22) for fixing the supporting bar (1) on the centering seat (2).
3. The centering and clamping device for the large-diameter inner gear ring for the gear measuring instrument according to claim 1, wherein a plurality of concave arcs facing the centering hole (21) are arranged on the outer side wall of the centering seat (2) at intervals, and connecting ports (23) of the centering seat (2) are formed among the plurality of concave arcs.
4. The centering and clamping device for the large-diameter inner gear ring for the gear measuring instrument according to claim 1, wherein a first groove is formed in a connecting port (23) of the centering seat (2), and the fixed end of the supporting bar (1) is precisely matched and connected with the first groove of the centering seat (2) through a screw (3).
5. The centering and clamping device of the large-diameter inner gear ring for the gear measuring instrument according to claim 1, wherein the outer end surfaces of the supporting strips (1) are the same in size from the center of the centering hole (21) of the centering seat (2).
6. The large-diameter ring gear centering and clamping device for a gear measuring instrument according to any one of claims 1 to 5, wherein the top end of the supporting bar (1) is provided with a scale bar (11), and corresponding score lines on the scale bar (11) are all based on the center of a centering hole (21) of the centering seat (2).
7. The centering and clamping device of a large-diameter ring gear for a gear measuring instrument as claimed in claim 6, wherein the two side walls of the supporting bar (1) are provided with a second groove (12).
8. The large-diameter inner gear ring centering clamping device for the gear measuring instrument according to claim 1, wherein a sliding guide groove (8) is formed in the bottom of the sliding positioning seat (4), and the sliding positioning seat (4) is slidably clamped on the supporting bar (1) through the sliding guide groove (8).
9. The centering and clamping device of a large-diameter ring gear for a gear measuring instrument according to claim 1, characterized in that the sliding positioning seat (4) is positioned at a fixed position on the supporting bar (1) by a locking screw (5).
10. The large-diameter ring gear centering and clamping device for a gear measuring instrument according to claim 1, wherein the distances from the outer end surfaces of the plurality of sliding positioning seats (4) to the longitudinal end surfaces of the positioning steps are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223593764.5U CN219532479U (en) | 2022-12-29 | 2022-12-29 | Centering clamping device of large-diameter inner gear ring for gear measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223593764.5U CN219532479U (en) | 2022-12-29 | 2022-12-29 | Centering clamping device of large-diameter inner gear ring for gear measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219532479U true CN219532479U (en) | 2023-08-15 |
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ID=87626607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223593764.5U Active CN219532479U (en) | 2022-12-29 | 2022-12-29 | Centering clamping device of large-diameter inner gear ring for gear measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219532479U (en) |
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2022
- 2022-12-29 CN CN202223593764.5U patent/CN219532479U/en active Active
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