阅读说明：本技术 带有检测装配的行星中心架及检测方法 (Planet center frame with detection assembly and detection method ) 是由 孙自龙 朱铁强 贾延鹏 董立山 何海峰 武立坡 于 2021-09-17 设计创作，主要内容包括：带有检测装配的行星中心架及检测方法,包括偏心轴、回转体、回转测量支架、千分表,其特征在于偏心轴排列设置在回转体的周围,锥度芯轴设置在回转体的中部,回转测量支架设置在锥度芯轴上,并且位于回转体的前部,回转测量支架向下延伸,延伸端部设有千分表,本方案技术降低了装配难度,提高了装配精度,缩短了装配时间,降低了生产成本,对于φ1100直径的行星中心架,用此方法装配及检测其精度可达到0.015mm以内.保证了曲轴的加工精度。(The planetary center frame with the detection assembly and the detection method comprise eccentric shafts, a revolving body, a rotation measurement support and a dial indicator, and are characterized in that the eccentric shafts are arranged around the revolving body, a taper mandrel is arranged in the middle of the revolving body, the rotation measurement support is arranged on the taper mandrel and positioned in the front of the revolving body, the rotation measurement support extends downwards, and the dial indicator is arranged at the extending end part.)

1. Planet centre frame with detect assembly, including eccentric shaft (1), the solid of revolution (2), gyration measurement support (3), amesdial (4), its characterized in that eccentric shaft (1) is arranged and is set up around the solid of revolution (2), and tapering dabber (5) set up the middle part at the solid of revolution (2), and gyration measurement support (3) set up on tapering dabber (5) to be located the front portion of the solid of revolution (2), gyration measurement support (3) downwardly extending, the extension tip is equipped with amesdial (4).

2. Planetary carrier with detection assembly according to claim 1, characterized by the fact that the lower front part of the revolution solid (2) is provided with a notch and the extension of the revolution measuring stand (3) is arranged in front of the notch.

3. Planetary carrier with detection assembly according to claim 1, characterized by the fact that the middle of the revolution solid (2) is equipped with a centering plate (6) that is placed coaxially with the revolution measuring support (3).

4. Planetary carrier with detection assembly according to any of claims 1 or 3, characterized by the fact that the positioning plate of the revolving body (2) is fixed with the centering plate (6) by means of positioning pins (7).

5. Planetary carrier with detection assembly according to claim 1, characterized by the fact that the revolving body (2) is rotatably arranged in the raceway (8), the raceway (8) being provided with a raceway cover (9) at the rear.

6. Planet centre with test fitting according to claim 1, characterised in that the eccentric shafts (1) are provided with at least thirteen, in which eccentric shafts (1) there are rollers (10) arranged in rotation.

7. The planet center frame detection method is characterized by comprising the following steps of: firstly, fixing a central positioning plate (6) on a revolving body (2) through a positioning pin (7), secondly, clamping and boring a shaft hole of a roller (10) of the revolving body (2) and a fabrication hole of the central positioning plate (6) at one time, thirdly, firstly, installing the roller (10) in three eccentric shafts (1), installing components of the revolving body (2) in a rolling way body (8), rotating a revolution measuring bracket (3), measuring the highest point of the outer diameter of the roller (10) of the eccentric shafts (1) by a dial gauge (4) on the revolution measuring bracket (3), adjusting the eccentric shafts (1), enabling the excircle of the roller (10) to be in close contact with and in clearance with the inner hole of the rolling way body (8), fourthly, removing the rolling way body (8) and a rolling way body cover (9), sequentially installing the rest rollers (10) in the eccentric shafts (1) on the revolving body (2), and respectively measuring the highest point of the outer diameter of each roller (10) by the dial gauge (4) on the revolution measuring bracket (3), calculating the difference between the point and the determined zero point, and fifthly, after the measurement is finished, grinding the excircle of all the rollers (10) according to the difference, wherein the removal amount is twice of the difference, grinding the excircle according to the measured data after the rollers (10) are detached, and reinstalling each roller (10) after grinding.

8. A planetary central frame test method according to claim 7, characterized in that the first loading of the rollers (10) in the three eccentric shafts (1) is in a uniform triangular arrangement.

9. The planetary sun detection method according to claim 7, characterized in that the tooling hole of the center positioning plate (6) has a specification of phi 50H 6.

Technical Field

The invention relates to a planetary central frame with a detection assembly and a detection method.

Background

The rotation precision of the center frame of the numerical control crankshaft lathe directly influences the working precision of the lathe for turning the crankshaft. The planet center frame structurally comprises a revolving body 2, rollers 10, V-shaped blocks, a raceway body 8, a raceway body cover 9 and the like, wherein the revolving body 2 is provided with a U-shaped notch and is not provided with a center positioning hole, the V-shaped blocks are fixed on the revolving body 2 through screws, and the positions of the V-shaped blocks can be finely adjusted according to the eccentric position of a crankshaft. The difficulty of assembly lies in how to guarantee the installation accuracy of the roller 10 fixed on the revolving body 2, namely: the highest point of the excircle of all the rollers 10 is required to be positioned on the same circumference (the inner diameter of the raceway body 8), and the concentricity of the rollers is not more than 0.015 mm. Because the part size is great, it is inconvenient to measure, and the degree of difficulty of assembly, detection is all very big.

Disclosure of Invention

The invention provides a planet center frame with a detection assembly and a detection method, which are used for solving the technical problems in the background technology.

The planet center frame with the detection assembly comprises an eccentric shaft, a revolving body, a rotation measurement support and a dial indicator, and is characterized in that the eccentric shaft is arranged around the revolving body, a taper mandrel is arranged in the middle of the revolving body, the rotation measurement support is arranged on the taper mandrel and is positioned in the front of the revolving body, the rotation measurement support extends downwards, and the extended end part is provided with the dial indicator.

Preferably, the planet center frame with the detection assembly is characterized in that a notch is formed in the lower front part of the revolving body, and the extension part of the revolution measurement bracket is arranged in front of the notch.

Preferably, the planet center frame with the detection assembly is characterized in that a center positioning plate is arranged in the middle of the revolving body, and the positioning plate and the revolution measurement support are coaxially arranged.

Preferably, the planet center frame with the detection assembly is characterized in that the revolving body positioning plate and the center positioning plate are fixed through positioning pins.

Preferably, the planet center frame with the detection assembly is characterized in that the revolving body is rotationally arranged in the raceway body, and the rear part of the raceway body is provided with a raceway body cover.

Preferably, the planet centre carrier with the detection assembly is characterized in that the eccentric shaft is provided with at least thirteen eccentric shafts, and the eccentric shafts are rotatably provided with rollers

The planet center frame detection method is characterized by comprising the following steps of:

firstly, fixing a central positioning plate on a revolving body through a positioning pin.

Secondly, clamping and boring the axle hole of the roller of the revolving body and the fabrication hole of the central positioning plate at one time.

And thirdly, firstly, mounting rollers in the three eccentric shafts, mounting the revolving body assembly in the roller path body, rotating the revolution measurement bracket, measuring the highest point of the outer diameter of the eccentric shaft roller by a dial indicator on the revolution measurement bracket, and adjusting the eccentric shafts to enable the excircle of the roller to be in close contact with and to have a gap with the inner hole of the roller path body.

And fourthly, removing the raceway body and the raceway body cover, sequentially loading the rest rollers into the eccentric shaft on the revolving body, respectively measuring the highest point of the outer diameter of each roller by using a dial indicator on the revolution measuring bracket, and calculating the difference value between the point and the determined zero point.

After the measurement is finished, grinding the excircle of all the rollers according to the difference, wherein the removal amount is twice of the difference. And (5) detaching the rollers, grinding the excircle according to the measured data, and reinstalling each roller after grinding.

Preferably, the planetary central frame detection method is characterized in that the rollers are arranged in the three eccentric shafts in a uniform triangular mode.

Preferably, the planetary center frame detection method is characterized in that the specification of the fabrication hole of the center positioning plate is phi 50H 6.

Has the advantages that: the technical scheme reduces the assembly difficulty, improves the assembly precision, shortens the assembly time, reduces the production cost, and ensures the machining precision of the crankshaft as the precision of assembling and detecting the phi 1100-diameter planet center frame can reach within 0.015 mm.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic view of a final step rotor;

in the figure: the device comprises an eccentric shaft 1, a revolving body 2, a revolution measuring bracket 3, a dial indicator 4, a taper mandrel 5, a center positioning plate 6, a positioning pin 7, a rolling way body 8, a rolling way body cover 9 and a roller 10.

Detailed Description

The present invention will now be described in detail with reference to the drawings, wherein the embodiments are shown as a part of the embodiments of the present invention, but not as a whole. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as a fixed connection, a bolted connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other, so that the specific meaning of the terms in the invention can be understood by those skilled in the art.

The planet center frame with the detection assembly comprises an eccentric shaft 1, a revolving body 2, a revolution measurement support 3 and a dial indicator 4, and is characterized in that the eccentric shaft 1 is arranged around the revolving body 2, a taper mandrel 5 is arranged in the middle of the revolving body 2, the revolution measurement support 3 is arranged on the taper mandrel 5 and is positioned in the front of the revolving body 2, the revolution measurement support 3 extends downwards, and the dial indicator 4 is arranged at the extending end.

Further, a notch is arranged at the lower part of the front of the revolving body 2, and the extension part of the revolving measurement bracket 3 is arranged in front of the notch.

Furthermore, the middle part of the revolving body 2 is provided with a central positioning plate 6 which is arranged coaxially with the revolving measurement bracket 3.

Further, the positioning plate of the revolving body 2 and the central positioning plate 6 are fixed through a positioning pin 7.

Further, the revolving body 2 is rotatably arranged in the raceway body 8, and a raceway body cover 9 is arranged at the rear part of the raceway body 8.

Further, at least thirteen eccentric shafts 1 are provided, and rollers 10 are rotatably provided in the eccentric shafts 1

The planet center frame detection method is characterized by comprising the following steps of:

firstly, a central positioning plate 6 is fixed on the revolving body 2 through a positioning pin 7.

Secondly, the axle hole of the roller 10 of the revolving body 2 and the fabrication hole of the central positioning plate 6 are clamped and bored at one time.

Thirdly, firstly, rollers 10 are arranged in the three eccentric shafts 1, the components of the revolving body 2 are arranged in the roller path body 8, the revolving measurement bracket 3 is rotated, the dial indicator 4 on the revolving measurement bracket 3 measures the highest point of the outer diameter of the rollers 10 of the eccentric shafts 1, and the eccentric shafts 1 are adjusted to enable the outer circles of the rollers 10 to be in close contact with and have gaps with the inner holes of the roller path body 8.

And fourthly, removing the raceway body 8 and the raceway body cover 9, sequentially loading the rest rollers 10 into the eccentric shaft 1 on the revolving body 2, respectively measuring the highest point of the outer diameter of each roller 10 by using the dial indicator 4 on the revolution measuring bracket 3, and calculating the difference value between the point and the determined zero point.

After the measurement is finished, grinding the outer circles of all the rollers 10 according to the difference, wherein the removal amount is twice of the difference. And after the roller 10 is detached, grinding the excircle according to the measured data, and reinstalling each roller 10 after grinding.

Further, the rollers 10 are first installed in the three eccentric shafts 1 in a uniform triangular arrangement.

Further, the specification of the fabrication hole of the center positioning plate 6 is phi 50H 6.

Before boring the peripheral roller 10 hole on the revolving body 2, the central positioning plate 6 is fixed on the revolving body 2 by the positioning pin 7 and is matched with the positioning pin 7 to prevent movement. And then, clamping and boring thirteen roller 10 shaft holes on the revolving body 2 and phi 50H6 process holes on the center positioning plate 6 at one time.

During assembly, according to the attached drawing, three eccentric shafts 1 and rollers 10 are arranged on a revolving body 2, the rollers 10 of the three eccentric shafts 1 are uniformly distributed in a triangular mode around the center, a tapered mandrel 5 which is well assembled and ground is arranged in a center positioning plate 6, and a revolving measurement support 3 is arranged in a manner that the excircle on the tapered mandrel and the inner hole of the revolving measurement support 3 are positioned.

And then the components of the revolving body 2 are arranged in the raceway body 8. Rotating the revolution measurement bracket 3, measuring the highest point of the outer diameter of each eccentric roller 10 by using the dial indicator 4 on the revolution measurement bracket 3, adjusting each eccentric shaft 1 to ensure that the excircle of the roller 10 is in close contact with the inner hole of the roller path body 8 without clearance, and the measured values of the dial indicators 4 at the highest point of the outer diameter of the roller 10 are equal, and then, the dial indicator is zeroed. This ensures that the center of the rotor 2 is coaxial with the center of the inner diameter of the raceway body 8.

And removing the raceway body 8 and the raceway body cover 9, sequentially loading the remaining ten rollers 10 into the eccentric shaft 1 on the revolving body 2, respectively measuring the highest point of the outer diameter of each roller 10 by using a dial indicator 4 on the revolution measuring bracket 3, and calculating the difference value between the point and the determined zero point. After the measurement is finished, the excircle of all the rollers 10 is ground according to the difference, and the removal amount is twice of the difference. And (5) grinding the excircle according to the measured data after the roller 10 is detached. After grinding, the rollers 10 are reinstalled.

And similarly, the three eccentric shafts 1 which are started to be installed are replaced by the normal roller 10 shaft, and then the grinding is carried out according to the flow.

Through the assembling and checking method, the assembling difficulty is reduced, the assembling precision is improved, the assembling time is shortened, and the production cost is reduced. For a phi 1100-diameter planet center frame, the precision of assembly and detection by the method can reach within 0.015mm, and the machining precision of the crankshaft is ensured.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.