阅读说明：本技术 一种小角度精准侧倾装置 (Accurate device that heels of low-angle ) 是由 郭俊文 李旭军 张利军 赵超改 于 2021-08-12 设计创作，主要内容包括：本发明涉及一种小角度精准侧倾装置,属于机械加工技术领域；包括下平台(1)、上平台(2)、下支耳(3)、上支耳(4)、中心轴转动副(5)、标定块(6)、调节器(0)；下平台提供所述装置的水平支撑；上平台提供待侧倾零件的支撑；下支耳和上支耳分别在中部与上下平台固定连接,二者通过中心轴转动副活动连接；标定块从一端支撑上平台,提供上平台与下平台之间的初始角度标定；调节器从另一端精准调节上平台与下平台所成角度,支撑固定上下平台。对比现有技术,本发明成本低,结构简单、稳定性高、实用性强、精度高,便于操作,通过该装置的使用,解决了某产品装配过程中大型组件侧倾调试难度大、时间长的难题,极大提升了生产效率。(The invention relates to a small-angle accurate side-tipping device, belonging to the technical field of machining; comprises a lower platform (1), an upper platform (2), a lower support lug (3), an upper support lug (4), a central shaft revolute pair (5), a calibration block (6) and a regulator (0); the lower platform provides horizontal support for the device; the upper platform provides support for a part to be tilted; the lower lug and the upper lug are respectively fixedly connected with the upper platform and the lower platform in the middle part and are movably connected through a central shaft revolute pair; the calibration block supports the upper platform from one end and provides initial angle calibration between the upper platform and the lower platform; the regulator is from the accurate angle that adjusts upper mounting plate and lower platform of the other end, supports fixed upper and lower platform. Compared with the prior art, the device has the advantages of low cost, simple structure, high stability, strong practicability, high precision and convenience in operation, solves the problems of high inclination debugging difficulty and long time of a large-scale assembly in the assembly process of a certain product through the use of the device, and greatly improves the production efficiency.)

1. A small-angle accurate roll device, its characterized in that: comprises a lower platform (1), an upper platform (2), a lower support lug (3), an upper support lug (4), a central shaft revolute pair (5), a calibration block (6) and a regulator (0);

a lower platform (1) for providing horizontal support of the apparatus;

the upper platform (2) is used for providing support for a part to be tilted;

the lower support lug (3) and the upper support lug (4) are respectively fixedly connected with the lower platform (1) and the upper platform (2) in the middle part, and then the lower support lug and the upper support lug are movably connected through a central shaft revolute pair (5) so that the upper platform (2) can freely revolve around the central shaft revolute pair (5);

the calibration block (6) is used for supporting the upper platform (2) from one end and providing initial angle calibration between the upper platform (2) and the lower platform (1);

the adjuster (0) is used for accurately adjusting the angle formed by the upper platform (2) and the lower platform (1) from the other end, and plays a role in supporting, fixing and leveling up and down.

2. The apparatus of claim 1, wherein: the regulator (0) comprises a support (01), a base (03), a bearing mounting seat (02), an end cover (09), a screw rod seat (07), a screw rod (08), a deep groove ball bearing (012) and a plane thrust ball bearing (014);

the support (01) is fixedly connected with the upper platform (2) and provides an upper supporting point of the regulator (0);

the base (03) is fixedly connected with the lower platform (1) and provides a lower supporting point of the regulator (0);

trunnions at two ends of the bearing mounting seat (02) are connected with the support (01) through a deep groove ball bearing (012), an end cover (09), a screw (010) and a gasket (011) and can do rotary motion; the screw rod (08) penetrates through the center hole of the screw rod, and the plane thrust ball bearing (014) is arranged in the upper groove and the lower groove of the screw rod; when the bearing mounting seat (02) works, the bearing mounting seat does self-rotation motion and does up-and-down reciprocating motion along the screw rod (08); the upper nut (04) and the lower nut (05) are respectively screwed on the upper side and the lower side of the screw rod (08) on the bearing mounting seat (02);

the screw rod seat (07) is fixedly connected with the lower end of the screw rod (08) into a whole, the screw rod seat (07) is connected with the base (03) through a pin shaft (06), and the screw rod seat can do rotary motion around the pin shaft (06) during working.

3. The apparatus of claim 1, wherein: the device also comprises an end seat (07) and a fixing block (08), wherein the fixing block (08) is fixedly connected with the end part of the upper platform (2) and used for providing the fixing of the end seat (07), the end seat (07) is movably connected with the fixing block (08) and used for always keeping the lower plane of the end seat (07) parallel to the lower platform (1) when the upper platform (2) and the lower platform (1) form any angle, and the upper platform (2) is supported under the condition that the regulator (0) breaks.

4. The apparatus of claim 3, wherein: the end seat (07) is movably connected with the fixed block (08) through a bolt (9) and a nut (10), and the end seat (07) can freely rotate around the bolt (9).

5. The apparatus of any of claims 1-4, wherein: the calibration block (6) is composed of plates with different thicknesses designed according to the initial inclination angle, the selected calibration block (6) is placed in advance according to the required angle during use, and when the lower plane of the end seat (07) is completely attached to the uppermost plane of the calibration block (6), the required initial angle is achieved.

6. The apparatus of claim 5, wherein: the initial angle is set to the roll angle plus 1 ° -2 °.

7. The apparatus of claim 6, wherein: the calibration block (6) is a block with different heights corresponding to a plurality of initial angles, or is stacked by a plurality of blocks with different heights, and the initial angles are realized by combined stacking among different blocks.

8. The apparatus of claim 7, wherein: the calibration block (6) is made of a high-hardness light material.

9. The apparatus of claim 8, wherein: the calibration block (6) is made of polytetrafluoroethylene.

Technical Field

The invention relates to a side-tipping device, in particular to a small-angle accurate side-tipping device, and belongs to the technical field of machining.

Background

In the assembly process of an existing large product, a large tower-shaped assembly (self weight of about 4-6 tons) of the existing large product needs to be tilted to five angles of 0 degrees +/-10 ', 2 degrees +/-10 ', 4 degrees +/-10 ', 6 degrees +/-10 ' and 10 degrees +/-10 ', and parts mounted on the existing large product are assembled and debugged under different angles respectively. The method adopted at present is that a high vehicle is matched with a special lifting rigging to directly lift the tower-shaped part, and then the specified angle of the tower-shaped part is tilted by plugging a cushion block and an adjusting cushion and measuring the angle by using an angle ruler. The method is low in efficiency, products can not be delivered on time when the emergency mass production task is faced, and the competitiveness of a company is reduced, so that the design of the small-angle side-tipping device with simple structure, high stability, strong practicability and high precision is imperative.

Disclosure of Invention

The object of the present invention is to overcome or partially overcome the drawbacks of the prior art by proposing a small-angle precision heeling apparatus.

The purpose of the invention is realized by the following technical scheme.

A small angle precision roll device comprising: the device comprises a lower platform, an upper platform, a lower support lug, an upper support lug, a central shaft revolute pair, a calibration block and a regulator;

a lower platform for providing horizontal support for the apparatus;

the upper platform is used for providing support for a part to be tilted;

the lower lug and the upper lug are respectively fixedly connected with the lower platform and the upper platform in the middle part, and then the lower lug and the upper lug are movably connected through a central shaft revolute pair, so that the upper platform can freely revolve around the central shaft revolute pair;

the central shaft revolute pair is used for connecting the upper platform and the lower platform at the middle parts thereof, supporting the upper platform and enabling the upper platform to do reciprocating rotary motion;

the calibration block is used for supporting the upper platform from one end and providing initial angle calibration between the upper platform and the lower platform;

the regulator is used for accurately regulating the angle formed by the upper platform and the lower platform from the other end, and plays a role in supporting and fixing the upper platform and the lower platform.

Preferably, the regulator comprises a support, a base, a bearing mounting seat, an end cover, a screw rod seat, a screw rod, a deep groove ball bearing and a plane thrust ball bearing;

the support is fixedly connected with the upper platform and provides an upper supporting point of the regulator;

the base is fixedly connected with the lower platform and provides a lower supporting point of the regulator;

trunnions at two ends of the bearing mounting seat are connected with the support through a deep groove ball bearing, an end cover, a screw and a gasket and can do rotary motion; the screw rod penetrates through the center hole of the screw rod, and the plane thrust ball bearings are arranged in the upper groove and the lower groove of the screw rod; when the bearing mounting seat works, the bearing mounting seat does self-rotation movement and does up-and-down reciprocating movement along the screw rod; the upper nut and the lower nut are respectively screwed on the upper side and the lower side of the screw rod on the bearing mounting seat;

the screw rod seat is fixedly connected with the lower end of the screw rod into a whole, the screw rod seat is connected with the base through the pin shaft, and the screw rod seat can do rotary motion around the pin shaft during working.

Preferably, the device further comprises an end seat and a fixing block, the fixing block is fixedly connected with the end part of the upper platform and used for providing the fixing of the end seat, the end seat is movably connected with the fixing block and used for keeping the lower plane of the end seat parallel to the lower platform all the time when the upper platform and the lower platform form any angle, the function of supporting the upper platform can be effectively achieved under the condition that the regulator is broken, and the reliability of the device is improved.

Preferably, the calibration block is made of plates with different thicknesses designed according to the initial inclination angle, the selected calibration block is placed in advance according to a required angle during use, and the required initial angle is achieved when the lower plane of the end seat is completely attached to the uppermost plane of the calibration block.

Preferably, in order to reduce the weight of the calibration block, the calibration block is made of polytetrafluoroethylene.

Advantageous effects

Compared with the prior art, the invention has the advantages of low cost, simple structure, high stability, strong practicability, high precision and convenient operation, solves the problems of large side-tipping debugging difficulty and long time of a large-scale assembly in the assembly process of a certain product by using the device, greatly improves the production efficiency, shortens the side-tipping assembly time of the assembly by 50 percent, reduces the labor cost, and changes the original 4-person operation into the existing 1-person operation.

Drawings

FIG. 1 is a three-dimensional block diagram of a small angle precision roll device;

FIG. 2 is a front view of the regulator;

FIG. 3 is a cross-sectional view of the regulator;

FIG. 4 is a schematic view of a bearing mount structure; wherein (a) is a front view and (b) is a top view;

FIG. 5 is a schematic diagram of the initial state 0 three-dimensional structure of the present invention;

FIG. 6 is a schematic three-dimensional structure of the present invention in a 10-degree-roll attitude;

reference numerals: 0-adjuster, 1-lower platform, 2-upper platform, 3-lower lug, 4-upper lug, 5-central shaft revolute pair, 6-calibration block, 7-end seat, 8-fixed block, 9-bolt, 10-nut, 01-support, 02-bearing mounting seat, 03-base, 04-upper nut, 05-lower nut, 06-pin shaft, 07-screw seat, 08-screw, 09-end cover, 010-screw, 011-gasket, 012-deep groove ball bearing, 013-cotter pin, 014-plane thrust ball bearing.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

For the purpose of illustrating the objects, technical solutions and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

As shown in fig. 1, a small-angle precise roll device proposed for the present invention includes:

the lower platform 1 is placed on a horizontal plane when in use, and the lower support lug 3 is fixedly connected to the middle part of the lower platform, preferably welded, so that the lower platform and the lower support lug are integrated; the relative position does not change;

the upper platform 2 is used for placing a certain large tower-shaped component and is attached to the bottom plane of the component when in use, and the upper lug 4 is fixedly connected to the middle part of the upper platform, preferably welded, namely welded and fixed with the upper platform into a whole;

the central shaft revolute pair 5 consists of a shaft, a bearing and a bearing end cover, is connected with the upper support lug 4 and the lower support lug 3, and plays a role in connecting the upper platform and the lower platform, supporting the upper platform and enabling the upper platform to do reciprocating rotary motion around the upper platform when in use;

a calibration block 6 for providing initial angle calibration between the upper platform and the lower platform; in the concrete implementation, the calibration block can be formed by circular flat plates (not limited to circular, square, rectangle and other arbitrary shapes as long as one end of the upper platform can be supported) with different thicknesses designed according to the inclination angle of 1-2 degrees, when the calibration block is used, the selected calibration block is placed in advance according to the required angle, and when the lower edge of one end of the upper platform is completely attached to the uppermost plane of the calibration block, the required initial angle is achieved; considering the weight factor, the calibration block 6 is preferably made of polytetrafluoroethylene; of course, the calibration block 6 may be a block with different heights corresponding to different angles, and the angle of the upper platform 2 is changed by replacing the calibration block in work, or a plurality of blocks with different heights are stacked, and the angle of the upper platform 2 is changed by combining and stacking different blocks;

preferably, the device also comprises a fixed block 8 and an end seat 7, wherein the fixed block 8 is fixedly connected with one end of the upper platform 2, preferably welded, so that the fixed block 8 and the end seat are integrated; the end seat 7 is movably connected with the fixed block 8, can freely rotate around the connecting shaft, and is preferably connected with the nut 10 through a bolt 9, the nut is adjusted in the working process of the device, and a certain gap is provided to ensure that the lower plane of the end seat 7 is parallel to the lower platform 1 when the upper platform 2 and the lower platform 1 form any angle; at the moment, in the working state of the device, when the lower plane of the end seat 7 is completely attached to the uppermost plane of the calibration block 6, the required initial angle is reached;

the regulator 0 is used for supporting the upper platform from the other end, and is connected with the upper platform and the lower platform.

Preferably, as shown in fig. 2 and 3, the adjuster includes a support 01, a base 03, a bearing mounting seat 02, an end cap 09, a screw seat 07, a screw 08, a deep groove ball bearing 012 and a plane thrust ball bearing 014;

the support 01 is fixedly connected with the upper platform 2 and provides an upper supporting point of the regulator 0;

the base 03 is fixedly connected with the lower platform 1 and provides a lower supporting point of the regulator 0;

when the support 01 and the base 03 work, the inclination angle of the upper platform 2 relative to the lower platform is adjusted;

trunnions at two ends of the bearing mounting seat 02 are connected with the support 01 through a deep groove ball bearing 012, an end cover 09, a screw 010 and a gasket 011 and can do rotary motion; the screw 08 passes through the central hole thereof, and the plane thrust ball bearing 014 is arranged in the upper and lower grooves thereof; when the bearing mounting base 02 works, the bearing mounting base does self-rotation movement and does up-and-down reciprocating movement along the screw rod 08; the upper nut 04 and the lower nut 05 are respectively screwed on the upper side and the lower side of the screw rod 08 on the bearing mounting seat 02; the bearing mount structure is shown in fig. 4;

the lower end of the screw seat 07 is fixedly connected with the lower end of the screw 08 into a whole, the screw seat 07 is movably connected with the base 03 through a pin shaft 06, specifically, the pin shaft 06 penetrates through pin shaft holes formed in the base 03 and the screw seat 07, and a cotter pin 013 is inserted into a small hole of the pin shaft 06, so that the screw seat 07 can perform rotary motion around the pin shaft 06 during working, and the screw 08 and the upper platform 2 are always vertical along with the change of the inclination angle of the upper platform 2, namely the displacement of the upper platform relative to the lower platform 1, so as to support one side of the upper platform 2.

The working process of the device is as shown in figures 5 and 6:

1. as shown in fig. 5, the 0 ° initial state adjustment process is as follows: after the lower platform 1 is placed horizontally, the lower plane of the end seat 7 (at the moment, the bolts 9 and the nuts 10 are in a non-locking state) is slightly attached to the upper surface of the corresponding 0-degree calibration block 6 by rotating the upper nut 04 and the lower nut 05 on the adjuster 0, so that the angle formed by the upper platform 2 and the lower platform 1 reaches 0-degree initial calibration angle, then the upper nut 04 and the lower nut 05 are attached to the plane thrust ball bearing 014 and locked, so that the bearing installation seat 02 is in a static state without an up-and-down moving gap, namely the support 01 is in a static state, because the support 01 is fixedly connected with the upper platform 2 by welding, the upper platform 2 is also in a static state, and then the tower-shaped component to be angle-adjusted is hung on the upper platform 2, and for convenience of description, the center of gravity of the tower-shaped component is assumed to be at the center of the upper platform 2. At this time, the goniometer values in the turret assembly are observed again, fine adjustment is performed by rotating the upper nut 04 and the lower nut 05 until the displayed values are in the range of 0 ° ± 10', and the upper nut 04 and the lower nut 05 are locked, so that the upper platform 2 is fixed. At the moment, the end seat 7 is adjusted to be parallel to the upper plane of the calibration block 6, the bolt 9 and the nut 10 are locked, the protection and support effects are achieved when accidents happen, the tower-shaped structural part is prevented from toppling over, and the reliability of the device is improved. The height of the calibration block 6 can be increased or decreased by replacing the calibration block or by increasing or decreasing the number of plates with different thicknesses which form the calibration block 6; namely, under the condition that the calibration block 6 is stacked by a plurality of thickness plates for use, the thickness of each thickness plate is calculated according to the inclination angle and the angle change of the upper flat plate 2 and the length of the edge support point of the upper flat plate 2 from the center; under the condition that the calibration block 6 with the corresponding thickness is replaced when the upper platform 2 inclines at different angles, the thickness of the calibration block is calculated according to the inclination angle of the upper flat plate 2 and the length between the edge support point of the upper flat plate 2 and the center.

2. As shown in fig. 6, the tower assembly is tilted from 0 ° to 10 ° throughout: firstly, the number of the thickness plates of the calibration block 6 is reduced to 10 degrees of the required initial angle (under the condition that the calibration block 6 consists of a plurality of thickness plates), and then an upper nut 04 is rotated to enable the upper nut to move upwards for a small distance along the screw 08; at this time, the bearing mounting seat 02 has upward freedom, and the upper plane of the bearing mounting seat is tightly attached to the plane thrust ball bearing 014 by rotating the lower nut 05, so that the bearing mounting seat 02 moves upwards along the lead screw 08 under an upward acting force; the support 01 is driven by the bearing mounting seat 02 to have a tendency of moving upwards, but one end of the support 01 is fixedly connected with the upper platform 2 and can only do rotary motion along the central revolute pair 5, and the support 01 can do rotary motion around trunnions at two ends of the bearing mounting seat 02, so that the support 01 can do rotary motion along the central revolute pair 5 with the upper platform 2; under the action of the bearing mounting seat 02, the screw 08 makes rotary motion along the pin shaft 06; the lower nut 05 is rotated until the lower surface of the upper nut 04 is closely contacted with the plane thrust ball bearing 014 on the bearing mounting seat 02. Repeating the above processes until the end seat 7 (the bolt 9 and the nut 10 are in the non-locking state) is slightly attached to the upper plane of the calibration block 6, then observing the value of the angle meter in the turret, performing fine adjustment by rotating and adjusting the upper nut 04 and the lower nut 05 until the displayed value is within the range of 10 degrees +/-10', locking the upper nut 04 and the lower nut 05 to fix the upper platform 2, adjusting the end seat 7 to be parallel to the upper plane of the calibration block 6, and locking the bolt 9 and the nut 10.

The method is characterized in that: in the whole process of heeling, two plane thrust ball bearing 014 about upper nut 04 and lower nut 05 follow lead screw 08 and bearing mount pad 02 laminate all the time, the atress is even, overall structure is stable, the bearing is strong, it is rigid fixed to belong to, can not take place by atmospheric pressure when keeping fixed angle, the small displacement that hydraulic transmission caused leads to the angular deviation, moreover, the steam generator is simple in structure, long service life, multiple friction-reducing measures have been designed in the drive mechanism, save personnel's operating strength, and can reduce operating personnel, the angle process of heeling only needs alone to accomplish, the inside spare part assembly debugging process of whole turriform subassembly has greatly been shortened simultaneously, accomplish smoothly for production and provide the powerful guarantee.

In addition, when designing above-mentioned device that heels, need fully consider the weight (about 4 ~ 6 tons of dead weight) of certain large-scale turriform subassembly, side inclination angle precision (+/-10'), continuous stability and the practicality of structure (portable hoist and mount, need not external power supply, be applicable to open-air assembly and restore) etc. factor after reaching the side inclination angle. After comprehensive consideration, the design realizes the roll device shown in the attached figure 1. The large tower-shaped assembly is fixed on the upper platform, the upper nut and the lower nut on the adjuster are screwed to drive the upper platform to rotate around the two central shafts, the end seat and the calibration block are contacted to stop working when the upper platform rotates to a specified initial angle, and then the angle is accurately adjusted through the adjuster, so that the operation is simple and rapid. The bottom of the regulator is connected with the lower platform, the upper part of the regulator is connected with the upper platform, and the regulator provides power for the rotation of the upper platform through the transmission of the screw nut. The device is seemingly simple, but has the biggest characteristic that the device is different from the traditional screw nut transmission, four pairs of bearings and one pair of rotating pairs are arranged in the regulator of the device, the weight of a large tower-shaped component is overcome during operation, labor is saved, and one person can easily rotate the device through a wrench; and the regulator is in flexible contact with the upper platform, so that the planar contact of the upper platform during overturning and when the overturning is stopped is ensured, and the precision of the overturning angle is high.

In order to illustrate the contents and embodiments of the present invention, specific examples are given herein. The details introduced in the examples are not intended to limit the scope of the claims but to assist in understanding the present invention. Those skilled in the art will understand that: although the description is given in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art. And that various modifications, changes, or alterations to the steps of the preferred embodiments are possible without departing from the spirit and scope of the invention and appended claims. Therefore, the present invention should not be limited to the disclosure of the preferred embodiments and the accompanying drawings.