CN214039844U - Parallelism inspection device for lathe bed bearing block - Google Patents
Parallelism inspection device for lathe bed bearing block Download PDFInfo
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- CN214039844U CN214039844U CN202023075050.6U CN202023075050U CN214039844U CN 214039844 U CN214039844 U CN 214039844U CN 202023075050 U CN202023075050 U CN 202023075050U CN 214039844 U CN214039844 U CN 214039844U
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Abstract
The utility model provides a depth of parallelism verifying attachment for lathe bed bearing frame, through being provided with the detection device that slides, the lead screw, the guide rail, the crank, the transmission shaft, bevel gear A and bevel gear B, only need wave the crank, make the lead screw drive the detection device that slides and remove on the guide rail through bevel gear A and bevel gear B transmission, the detecting head translation is stretched into the seat of bearing frame and is measured in the downthehole, need not to measure respectively the both ends of bearing frame, the succinct weak point consuming time of operation, it is more steady to make the horizontal translation of the detection device that slides through lead screw transmission and guide rail are spacing. Because the setting of detecting plate and spring makes the utility model discloses the bearing housing hole that can be applicable to different diameters detects, and detecting plate and spring need not to change the dabber at every turn by the diameter in self-adaptation bearing housing hole, have increased the practicality.
Description
Technical Field
The utility model relates to a detection device technical field especially relates to a depth of parallelism verifying attachment for lathe bed bearing frame.
Background
The bearing seat is a device for supporting a bearing, a support point is required to be arranged where the bearing exists, an inner support point of the bearing is a shaft, an outer support is a common bearing seat, an outer ring of the bearing is generally arranged in the bearing seat through interference fit, and then a rotatable shaft is arranged in an inner ring of the bearing.
The existing large-scale machine tools all use bearing seats, the bearing seats need to be detected in precision and parallelism in the initial use stage and the use process, and the bearing seats are the most direct way for reflecting the precision of the bearings, so that the control on the precision of the bearing seats is particularly important.
The existing bearing seat is generally fixed on a machine tool body, a main bearing seat hole is used for supporting a main shaft, a bottom plane of the main bearing seat hole is fixed on the machine tool body surface, in order to ensure the machining precision of the machine tool, the precise parallel precision of the axis of the main shaft and the machine tool body surface is required to be kept, so that the parallelism tolerance is in an allowable range, the parallelism detection of the existing bearing seat is realized by utilizing a support, a dial indicator and a mandrel, the mandrel is firstly inserted into and penetrates through the seat hole of the bearing seat, then the dial indicator is supported by the support to move on the machine tool body surface, the height of the mandrel end part at two sides of the bearing seat is respectively detected by utilizing a probe of the dial indicator, the final parallelism tolerance result can be obtained by removing the mandrel length according to the height difference value at two ends, but the detection method needs to respectively measure the height of two ends of the mandrel, and needs to move the support to the other end to continue to measure after measuring, not only measuring time is long, and complex operation, the measuring accuracy can also be influenced by the weak height change of the lathe bed in the moving process.
Different dabbers need be changed when detecting the bearing frame of different diameters to current bearing frame depth of parallelism verifying attachment, and the bearing frame inspection work of multiple diameter can not the adaptation itself of device for the detection accessory that needs to carry becomes more, but also need select the dabber that corresponds the diameter according to the diameter of bearing frame, makes detection work become loaded down with trivial details time-consuming.
Disclosure of Invention
According to the technical problems, the utility model provides a parallelism inspection device for a lathe bed bearing seat, which is characterized by comprising a base, a left side plate, a right side plate, a lead screw, a guide rail, a slippage detection device, a support frame, a crank, a transmission shaft, a bevel gear A and a bevel gear B, wherein the left side plate and the right side plate are respectively arranged at the left side and the right side of a bottom plate, the lead screw is transversely arranged between the left side plate and the right side plate, the left end of the lead screw is arranged at the central position of the left side plate, the right end of the lead screw is arranged at the central position of the right side plate, the guide rail is respectively and transversely arranged at the front side and the rear side of the lead screw, the slippage detection device is arranged on the guide rail, the support frame is arranged at the left end of the base, the transmission shaft is vertically arranged on the support frame, the crank is arranged at the top end of the transmission shaft, the bevel gear A is arranged at the bottom end of the transmission shaft, the bevel gear B is arranged on the lead screw, the bevel gear A is meshed with the bevel gear B;
the slippage detection device comprises a sliding block, a supporting plate and a detecting head, wherein the sliding block is slidably mounted on a guide rail, a threaded hole is formed in the center of the sliding block, the sliding block is mounted on a screw rod through the threaded hole, the supporting plate is arranged above the sliding block, the supporting plate and the sliding block are of an integrated structure, the detecting head is mounted on the right side of the supporting plate, positioning holes are formed in the supporting plate at intervals from top to bottom, the positioning holes are through holes, the number of the positioning holes is N, and N is more than or equal to 2;
the detecting head consists of a probe body, a dial indicator, a transmission mechanism and a detecting mechanism, a positioning screw hole is formed in the left end face of the probe body, the detecting mechanism is symmetrically arranged at the right end of the probe body from top to bottom, the dial indicator is symmetrically arranged at the left end of the probe from top to bottom, and the transmission mechanism is arranged between the dial indicator and the detecting mechanism;
the detection mechanism comprises a detection plate, a spring and a sliding rod, the sliding rod is slidably mounted at the right end of the probe body, a rack is arranged at the left side of the sliding rod, the detection plate is arranged above the sliding rod, the spring is arranged between the detection plate and the probe body, the detection plate is obliquely arranged, the detection plate gradually inclines inwards from left to right, and a ball is mounted at the left end of the detection plate;
the transmission mechanism comprises a transmission wheel and a rack belt, the transmission wheel is arranged in the probe body in a bilateral symmetry mode, the rack belt is wound on the transmission wheel, the dial indicator comprises a dial plate and a bottom measuring head, the bottom measuring head is arranged on the inner side of the dial plate, a rack is also arranged on the bottom measuring head, the right end of the rack belt is meshed with the rack on the left side of the sliding rod, and the left end of the rack belt is meshed with the rack on the bottom measuring head of the dial indicator;
the detecting head is fixed on the positioning hole of the supporting plate through a positioning screw hole and a positioning bolt, and scales are arranged on the front side of the base.
The utility model has the advantages that:
the utility model discloses a be provided with the detection device that slides, the lead screw, the guide rail, the crank, the transmission shaft, bevel gear A and bevel gear B, when inspection bearing frame depth of parallelism, only need wave the crank, make the lead screw drive the detection device that slides on the guide rail through bevel gear A and bevel gear B transmission, stretch into the seat of bearing frame with the detecting head translation and measure in the seat hole, need not to measure respectively the both ends of bearing frame when detecting, only need the detecting head from the left socle in the place remove to the right then the record data can, the succinct weak consuming time of operation, and make the horizontal translation of the detection device that slides more steady through lead screw transmission and guide rail spacing, the altitude variation that produces when can not appearing weak manual movement support results in the error.
The detection mechanism of the utility model comprises a detection plate, a spring and a slide bar, when detecting, when a probe body extends into a bearing seat hole, because the detection plate gradually inclines inwards from left to right, the detection plate firstly supports against the upper and lower ends of the bearing seat hole, then the bearing seat hole extrudes the detection plate to compress the detection plate inwards until balls support against the inner wall of the bearing seat hole, then the dial indicator reads out a reading through the slide bar and a transmission mechanism, the dial indicator continuously moves in the bearing seat hole until the balls support against the inner wall of the bearing seat hole at the other end, a reading is read out again, the two readings are poor, then the moving distance is read out through scales, the parallelism tolerance can be obtained by dividing the moving distance by the reading difference, because the detection plate and the spring are arranged, the utility model can be suitable for detecting the bearing seat holes with different diameters, the mandrels with different diameters are not required to be replaced each time, the probe body is directly driven by a lead screw to extend into the bearing seat hole during detection, the diameter that surveys board and spring can self-adaptation bearing housing hole for detection achievement becomes simple and easy swift, need not to change the dabber at every turn, has increased the utility model discloses a practicality.
The utility model discloses a through being provided with the locating hole in the backup pad, be provided with the location screw on the probe body left end face, the detecting head passes through the location screw and positioning bolt fixes on the locating hole, can change the height that highly makes its adaptation bearing housing hole of detecting head through selecting different locating holes, consequently the utility model discloses a detecting head can adapt to not bearing of co-altitude.
The utility model discloses a symmetry is provided with detection mechanism and percentage table about the probe body, can read out two readings when surveying the bearing housing hole, and one is bearing housing hole upper surface, and another is bearing housing hole lower surface, measures two readings after, gains the average value and makes measured depth of parallelism tolerance result more accurate than single reading, has increased the utility model discloses a data precision.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the front view of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a top view of the present invention.
As shown in the figure: 1-base, 2-left side plate, 3-right side plate, 4-lead screw, 5-guide rail, 6-support frame, 7-crank, 8-transmission shaft, 9-bevel gear A, 10-bevel gear B, 11-slide block, 12-support plate, 13-positioning hole, 14-probe body, 15-dial plate, 16-positioning screw hole, 17-detection plate, 18-spring, 19-slide bar, 20-ball, 21-transmission wheel, 22-rack belt, 23-bottom measuring head, 24-positioning bolt, 25-scale, 26-lathe bed and 27-bearing seat.
Detailed Description
Example 1
The utility model provides a parallelism inspection device for a bearing seat 27 of a lathe bed 26, which is characterized by comprising a base 1, a left side plate 2, a right side plate 3, a lead screw 4, a guide rail 5, a slippage detection device, a support frame 6, a crank 7, a transmission shaft 8, a bevel gear A9 and a bevel gear B10, wherein the left side plate 2 and the right side plate 3 are respectively arranged at the left side and the right side of the bottom plate, the lead screw 4 is transversely arranged between the left side plate 2 and the right side plate 3, the left end of the lead screw 4 is arranged at the central position of the left side plate 2, the right end of the lead screw 4 is arranged at the central position of the right side plate 3, the guide rails 5 are respectively transversely arranged at the front side and the rear side of the lead screw 4, the slippage detection device is arranged on the guide rail 5, the support frame 6 is arranged at the left end of the base 1, the transmission shaft 8 is vertically arranged on the support frame 6, the top end of the transmission shaft 8 is provided with the crank 7, the bevel gear A9 is arranged at the bottom end of the transmission shaft, the lead screw 4 is provided with a bevel gear B10, bevel gear A9 meshes with bevel gear B10;
the slippage detection device comprises a sliding block 11, a supporting plate 12 and a detecting head, wherein the sliding block 11 is slidably mounted on a guide rail 5, a threaded hole is formed in the center of the sliding block 11, the sliding block 11 is mounted on a screw rod 4 through the threaded hole, the supporting plate 12 is arranged above the sliding block 11, the supporting plate 12 and the sliding block 11 are of an integral structure, the detecting head is mounted on the right side of the supporting plate 12, positioning holes 13 are formed in the supporting plate 12 at intervals from top to bottom, the positioning holes 13 are through holes, the number of the positioning holes 13 is N, and N is more than or equal to 2;
the detection head consists of a probe body 14, a dial indicator, a transmission mechanism and a detection mechanism, wherein a positioning screw hole 16 is formed in the left end face of the probe body 14, the detection mechanism is symmetrically arranged at the right end of the probe body 14 from top to bottom, the dial indicator is symmetrically arranged at the left end of the probe from top to bottom, and the transmission mechanism is arranged between the dial indicator and the detection mechanism;
the detection mechanism comprises a detection plate 17, a spring 18 and a sliding rod 19, the sliding rod 19 is slidably mounted at the right end of the probe body 14, a rack is arranged at the left side of the sliding rod 19, the detection plate 17 is arranged above the sliding rod 19, the spring 18 is arranged between the detection plate 17 and the probe body 14, the detection plate 17 is obliquely arranged, the detection plate 17 gradually inclines inwards from left to right, and a ball 20 is mounted at the left end of the detection plate 17;
the transmission mechanism comprises a transmission wheel 21 and a rack belt 22, the transmission wheel 21 is arranged in the probe body 14 in a bilateral symmetry mode, the rack belt 22 is wound on the transmission wheel 21, the dial indicator comprises a dial 15 and a bottom measuring head 23, the bottom measuring head 23 is arranged on the inner side of the dial 15, a rack is also arranged on the bottom measuring head 23, the right end of the rack belt 22 is meshed with the rack on the left side of the sliding rod 19, and the left end of the rack belt 22 is meshed with the rack on the bottom measuring head 23 of the dial indicator;
the detecting head is fixed on the positioning hole 13 of the supporting plate 12 through the positioning screw hole 16 and the positioning bolt 24, and the front side of the base 1 is provided with a scale 25.
Example 2
When the utility model is used, the base 1 is fixed on the bed 26 of the machine tool, so that the base 1 and the bed 26 are kept parallel, the base 1 is closer to the bearing seat 27, then the height of the detecting head is adjusted, the positioning bolt 24 is unscrewed, when the height of the adjusting detecting head is consistent with the bearing seat hole, the positioning bolt 24 is inserted into the positioning hole 13 of the supporting plate 12 and then screwed into the positioning screw hole 16 of the probe body 14, the fixing of the detecting head is completed, then the crank 7 is rotated, the crank 7 drives the transmission shaft 8 to rotate, the transmission shaft 8 drives the bevel gear A9 to rotate, the bevel gear A9 drives the bevel gear B10 to rotate, the bevel gear B10 drives the lead screw 4 to rotate, the lead screw 4 drives the sliding block 11 of the sliding detection device to move towards one side of the bearing seat 27 on the guide rail 5, the sliding block 11 drives the detecting head to move towards the seat hole of the bearing seat 27 through the supporting plate 12, when moving, the inclined plane of the detecting plate 17 firstly contacts with the edge of the bearing seat hole, then the movement is continued, because the detection plate 17 is gradually inclined inwards from left to right, the bearing seat hole extrudes the detection plate 17 to move inwards while the spring 18 is compressed, the detection plate 17 moves inwards while driving the sliding rod 19 to move, the sliding rod 19 drives the rack belt 22 to rotate through the rack, the rack belt 22 synchronously transmits the action of the sliding rod 19 to the bottom side head of the dial indicator, the bottom side head extends outwards, the dial 15 of the dial indicator measures the numerical value of the dial indicator, the detection head moves towards the right until the ball 20 of the detection plate 17 just abuts against the wall of the bearing seat hole, the reading M1 of the dial indicator above and the reading M2 of the dial indicator below are read at the moment, then the position X1 of the current slide block 11 is read through the scale 25, then the crank 7 is continuously rotated, so that the lead screw 4 drives the slide block 11 and the detection head to move towards the bearing seat hole, when the ball 20 of the detection plate 17 of the detection head moves to the inner wall of the other end of the bearing seat hole, reading out a reading M3 of the upper dial indicator and a reading M4 of the lower dial indicator, reading out a position X2 of the current sliding block 11 through the scale 25, wherein the parallelism tolerance of the upper surface of the bearing seat hole is f1 ═ M3-M1 |. L)/(X2-X1), the parallelism tolerance of the lower surface of the bearing seat hole is f 2| (| M4-M2 |. L)/(X2-X1), (wherein L is the width of the bearing seat 27), then averaging the two parallelism tolerances, and finally the parallelism tolerance of the bearing seat 27 is f ═ 1+ f2)/2, so that the accuracy of the obtained parallelism tolerance is higher than that of a single-side parallelism tolerance, after measurement, rotating the crank 7 reversely, driving the sliding detection device to move towards the left side along the guide rail 5, and withdrawing the probe head from the bearing seat hole.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The utility model discloses each part that mentions is the common technique in prior art, and the technical personnel of this trade should understand, the utility model discloses do not receive the restriction of above-mentioned embodiment, the description only is the explanation in above-mentioned embodiment and the description the principle of the utility model, under the prerequisite that does not deviate from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of claim the utility model is within the scope. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A parallelism inspection device for a lathe bed bearing seat is characterized by comprising a base, a left side plate, a right side plate, a lead screw, a guide rail, a slippage detection device, a support frame, a crank, a transmission shaft, a bevel gear A and a bevel gear B, the left side and the right side of the base are respectively provided with a left side plate and a right side plate, a screw rod is transversely arranged between the left side plate and the right side plate, the left end of the screw rod is arranged at the central position of the left side plate, the right end of the screw rod is arranged at the central position of the right side plate, guide rails are respectively transversely arranged on the front side and the rear side of the screw rod, a sliding detection device is arranged on the guide rails, a supporting frame is arranged at the left end of the base, a transmission shaft is vertically arranged on the supporting frame, a crank handle is arranged at the top end of the transmission shaft, the bottom end of the transmission shaft is provided with a bevel gear A, the lead screw is provided with a bevel gear B, and the bevel gear A is meshed with the bevel gear B;
the sliding detection device comprises a sliding block, a supporting plate and a detecting head, wherein the sliding block is slidably mounted on a guide rail, a threaded hole is formed in the center of the sliding block, the sliding block is mounted on a screw rod through the threaded hole, the supporting plate is arranged above the sliding block, the detecting head is mounted on the right side of the supporting plate, positioning holes are formed in the supporting plate at intervals from top to bottom, and the positioning holes are through holes;
the detecting head consists of a probe body, a dial indicator, a transmission mechanism and a detecting mechanism, a positioning screw hole is formed in the left end face of the probe body, the detecting mechanism is symmetrically arranged at the right end of the probe body from top to bottom, the dial indicator is symmetrically arranged at the left end of the probe from top to bottom, and the transmission mechanism is arranged between the dial indicator and the detecting mechanism;
the detection mechanism comprises a detection plate, a spring and a sliding rod, the sliding rod is slidably mounted at the right end of the probe body, a rack is arranged on the left side of the sliding rod, the detection plate is arranged above the sliding rod, the spring is arranged between the detection plate and the probe body, the detection plate is obliquely arranged, and the detection plate gradually inclines inwards from left to right;
the transmission mechanism comprises a transmission wheel and a rack belt, the transmission wheel is arranged in the probe body in a bilateral symmetry mode, the rack belt is wound on the transmission wheel, the dial indicator comprises a dial plate and a bottom measuring head, the bottom measuring head is arranged on the inner side of the dial plate, a rack is arranged on the bottom measuring head, the right end of the rack belt is meshed with the rack on the left side of the sliding rod, and the left end of the rack belt is meshed with the rack on the bottom measuring head of the dial indicator;
the detecting head is fixed on the positioning hole of the supporting plate through the positioning screw hole and the positioning bolt.
2. The parallelism inspection device for the bearing blocks of the machine tool body as claimed in claim 1, wherein said support plate and said slide block are of an integral structure.
3. The parallelism inspection device for the bearing blocks of the lathe bed as claimed in claim 1, wherein the number of the positioning holes is N, and N is more than or equal to 2.
4. The parallelism inspection device for the bearing blocks of the machine tool body as claimed in claim 1, wherein a ball is mounted at the left end of the probe plate.
5. The parallelism inspection device for the bearing blocks of the machine tool body as claimed in claim 1, wherein the base is provided with graduations on the front side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023075050.6U CN214039844U (en) | 2020-12-18 | 2020-12-18 | Parallelism inspection device for lathe bed bearing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023075050.6U CN214039844U (en) | 2020-12-18 | 2020-12-18 | Parallelism inspection device for lathe bed bearing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214039844U true CN214039844U (en) | 2021-08-24 |
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ID=77340033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023075050.6U Active CN214039844U (en) | 2020-12-18 | 2020-12-18 | Parallelism inspection device for lathe bed bearing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214039844U (en) |
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2020
- 2020-12-18 CN CN202023075050.6U patent/CN214039844U/en active Active
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