Positioning device

Abstract

The utility model belongs to the technical field of engines, and particularly relates to a positioning device. The positioning device comprises a base, a cushion block assembly, a first positioning assembly and a second positioning assembly, the first positioning assembly is arranged on the base and located on the side, in the first direction, of the cushion block assembly, the first positioning assembly comprises a first positioning piece, and the first positioning piece can move relative to the base in the second direction; the first direction and the second direction intersect, the first positioning piece is used for abutting against one side face, in the first direction, of the to-be-measured piece, the second positioning assembly is arranged on the base and comprises a second positioning piece, and at least part of the cushion block assembly is located between the first positioning piece and the second positioning piece. The second positioning piece can move relative to the base in the second direction and is used for abutting against one side face, in the second direction, of the to-be-measured piece. According to the technical scheme, the device can adapt to engine bodies of different models, and universality and applicability are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of engine, concretely relates to a positioning device. BACKGROUND

[0002] The engine body refers to the main structural member or the load-bearing part of the engine, which is the basis of other components in the engine. When the engine body is positioned and measured, the measuring device can only measure a single type of engine body, resulting in a single measurement type and reduced versatility. SUMMARY

[0003] The utility model discloses a positioning device for engine body, which can measure different types of engine bodies and improve versatility and applicability.

[0004] The utility model discloses a positioning device, which comprises a base, a cushion block assembly arranged on the base and used for supporting the measured part, a first positioning assembly arranged on the base and located on one side of the cushion block assembly along a first direction, the first positioning assembly comprising a first positioning part capable of moving along a second direction relative to the base, the first direction and the second direction being arranged intersectingly, the first positioning part being used for abutting against one side surface of the measured part along the first direction, and a second positioning assembly arranged on the base, the second positioning assembly comprising a second positioning part, at least part of the cushion block assembly being located between the first positioning part and the second positioning part, the second positioning part being capable of moving along the second direction relative to the base and being used for abutting against one side surface of the measured part along the second direction.

[0005] The base is used for supporting the cushion block assembly, the first positioning assembly and the second positioning assembly, the cushion block assembly is used for supporting the measured part (which can be an engine body), the first positioning part is capable of abutting against one side surface of the engine body along the first direction, the second positioning part is capable of abutting against one side surface of the engine body along the second direction, and the positioning of the engine body is thus completed, which facilitates the control of multiple degrees of freedom of the engine body to meet the requirements of different postures, and the first positioning part and the second positioning part can move along the second direction respectively, which can adapt to different types of engine bodies and improve versatility and applicability.

[0006] In addition, the positioning device according to the utility model can have the following additional technical features.

[0007] The first positioning part and the second positioning part can move along the second direction respectively, which can adapt to different types of engine bodies and improve versatility and applicability.

[0008] The first positioning part and the second positioning part can move along the second direction respectively, which can adapt to different types of engine bodies and improve versatility and applicability.

[0009] The first positioning part and the second positioning part can move along the second direction respectively, which can adapt to different types of engine bodies and improve versatility and applicability.

[0010] In addition, the positioning device according to the utility model can have the following additional technical features.

[0011] In some embodiments of the utility model, first positioning assembly still include respectively set up on the first slide rail, first screw rod and first drive part of base, first positioning piece with first screw rod cooperation and be connected, with first screw rod's rotation movement is converted to first positioning piece's linear motion, first positioning piece with first slide rail sliding connection, first screw rod set up in first slide rail, and along second direction extension, and one end of first screw rod with first drive part links to each other, first drive part is used for driving first screw rod rotation, with first positioning piece is along second direction removal.

[0012] In some embodiments of the utility model, second positioning assembly still include respectively set up on the second slide rail, second screw rod and second drive part of base, second positioning piece with second screw rod cooperation and be connected, with second screw rod's rotation movement is converted to second positioning piece's linear motion, second positioning piece with second slide rail sliding connection, second screw rod set up in second slide rail, and along second direction extension, and one end of second screw rod with second drive part links to each other, second drive part is used for driving second screw rod rotation, with second positioning piece is along second direction removal.

[0013] In some embodiments of the utility model, the cushion block assembly includes a first cushion block group and a second cushion block group, the first cushion block group and the second cushion block group are spaced apart along the first direction, and the second positioning member is located between the first cushion block group and the second cushion block group.

[0014] In some embodiments of the utility model, the cushion block assembly further includes a third cushion block group, and the positioning device further includes a third positioning assembly, the third positioning assembly includes a third positioning member disposed on the base, the third positioning member and the third cushion block group are disposed on a side of the second cushion block group away from the first cushion block group, the third positioning member is located between the second cushion block group and the third cushion block group, and is movable along the second direction.

[0015] In some embodiments of the utility model, the maximum dimension of the second positioning member along the third direction is less than the maximum dimension of the third positioning member along the third direction, and the third direction, the first direction and the second direction are perpendicular to each other.

[0016] In some embodiments of the utility model, third positioning assembly still include respectively set up on the base third sliding rail, third screw rod and third drive piece, third positioning piece with third screw rod cooperation connection, with third screw rod's rotation movement is converted into third positioning piece's linear motion, third positioning piece with third sliding rail sliding connection, third screw rod set up in third sliding rail, and along second direction extension, and one end of third screw rod with third drive piece links to each other, third drive piece is used for driving third screw rod rotation, with third positioning piece is along second direction removal.

[0017] In some embodiments of the utility model, the first pad group, the second pad group and the third pad group respectively include a plurality of pads arranged along the second direction.

[0018] In some embodiments of the utility model, the pad is a rubber piece.

[0019] In some embodiments of the utility model, the maximum dimension of the first positioning member along the third direction is equal to the maximum dimension of the second positioning member along the third direction, and the third direction, the first direction and the second direction are perpendicular to each other. BRIEF DESCRIPTION OF DRAWINGS

[0020] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the application. Moreover, the same reference numerals in the various drawings indicate the same or similar components. In the drawings:

[0021] Figure 1 The top view structural schematic diagram of the positioning device according to the embodiments of the utility model is schematically shown;

[0022] Figure 2 The front view structural schematic diagram of the positioning device according to the embodiments of the utility model is schematically shown;

[0023] Figure 3 The side view structural schematic diagram of the positioning device according to the embodiments of the utility model is schematically shown;

[0024] Figure 4 For Figure 1 The structural schematic diagram of the first positioning assembly of the positioning device is schematically shown.

[0025] The various signs in the drawings represent as follows:

[0026] 10, base;

[0027] 21, first pad group; 22, second pad group; 23, third pad group; 24, pad;

[0028] 30, first positioning assembly; 31, first positioning member; 32, first slide rail; 33, first screw rod; 34, first driving member;

[0029] 40, second positioning assembly; 41, second positioning member;

[0030] 50, third positioning assembly; 51, third positioning member. DETAILED DESCRIPTION

[0031] Example embodiments of the present disclosure will be described herein below with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0032] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0033] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0034] For ease of description, spatial relative terms can be used herein to describe the relationship between one element or feature to another element or feature as shown in the figures, such as "inner", "outer", "inner side", "outer side", "under", "below", "above", "on", and the like. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "below" or "under" another element or feature would then be oriented "above" or "above" the other element or feature. Thus, the example term "below" can include both an up and down orientation.

[0035] Figure 1 A top view structural schematic diagram of the positioning device according to the embodiment of the present application is schematically shown. Figure 2 A front view structural schematic diagram of the positioning device according to the embodiment of the present application is schematically shown. Figure 3 A side view structural schematic diagram of the positioning device according to the embodiment of the present application is schematically shown. Figure 1 、 2 As shown in FIGS. 1, 2 and 3, the present application provides a positioning device. The positioning device in the present application comprises a base 10, a cushion block assembly, a first positioning assembly 30 and a second positioning assembly 40. The cushion block assembly is arranged on the base 10 and is used to support a to-be-measured piece. The first positioning assembly 30 is arranged on the base 10 and is located on one side of the cushion block assembly along a first direction. The first positioning assembly 30 comprises a first positioning piece 31, which is movable relative to the base 10 along a second direction. The first direction and the second direction are arranged intersectingly. The first positioning piece 31 is used to abut against one side surface of the to-be-measured piece along the first direction. The second positioning assembly 40 is arranged on the base 10. The second positioning assembly 40 comprises a second positioning piece 41. At least part of the cushion block assembly is located between the first positioning piece 31 and the second positioning piece 41. The second positioning piece 41 is movable relative to the base 10 along the second direction and is used to abut against one side surface of the to-be-measured piece along the second direction.

[0036] According to the technical scheme of the utility model, the base 10 is used for supporting the cushion block assembly, the first positioning assembly 30 and the second positioning assembly 40, the cushion block assembly is used for supporting the measured piece (which can be an engine body), the first positioning piece 31 can abut against one side surface of the engine body along the first direction, the second positioning piece 41 can abut against one side surface of the engine body along the second direction, and then the positioning of the engine body is completed, the control of multiple degrees of freedom of the engine body is facilitated, the requirements of different postures are adapted to, and the first positioning piece 31 and the second positioning piece 41 can be moved along the second direction respectively, different models of engine bodies can be adapted to, and the versatility and applicability are improved.

[0037] In some embodiments of the utility model, as shown in Figure 4 The first positioning assembly 30 further comprises a first sliding rail 32, a first lead screw 33 and a first driving piece 34 which are arranged on the base 10 respectively, the first positioning piece 31 is connected with the first lead screw 33 in a matching mode, so as to convert the rotary motion of the first lead screw 33 into the linear motion of the first positioning piece 31, the first positioning piece 31 is connected with the first sliding rail 32 in a sliding mode, the first lead screw 33 is arranged in the first sliding rail 32 and extends along the second direction, one end of the first lead screw 33 is connected with the first driving piece 34, and the first driving piece 34 is used for driving the first lead screw 33 to rotate, so as to drive the first positioning piece 31 to move along the second direction. In the embodiment, the first driving piece 34 can be a motor or other components capable of driving the first lead screw 33 to rotate, the first positioning piece 31 is arranged at the top end of the first sliding rail 32 and matches with the first sliding rail 32, one end of the first lead screw 33 penetrates the first positioning piece 31 and matches with the first positioning piece 31 in a screw mode, the other end of the first lead screw 33 is connected with the first driving piece 34 in a transmission mode, the first driving piece 34 can drive the first lead screw 33 to rotate, when the first lead screw 33 rotates, the first positioning piece 31 can move along the second direction, so as to realize the contact of the first positioning piece 31 with different positions along the second direction and realize the positioning.

[0038] In some embodiments of the utility model, second positioning assembly 40 still includes second slide rail, second screw rod and second driving part which are respectively arranged on base 10, second positioning part 41 is connected with second screw rod, so as to convert the rotary motion of second screw rod into the linear motion of second positioning part 41, second positioning part 41 is connected with second slide rail, second screw rod is arranged in second slide rail and extends along second direction, and one end of second screw rod is connected with second driving part, and second driving part is used to drive second screw rod to rotate, so as to drive second positioning part 41 to move along second direction. In the embodiment, second driving part can be motor or other parts that can drive second screw rod to rotate, second positioning part 41 is arranged at the top of second slide rail and is matched with second slide rail, one end of second screw rod is arranged in second positioning part 41 and is matched with second positioning part 41, the other end of second screw rod is connected with second driving part, second driving part can drive second screw rod to rotate, when second screw rod rotates, it can drive second positioning part 41 to move along second direction, and then the different positions of second positioning part 41 in second direction are contacted, and then positioning is realized.

[0039] In some embodiments of the utility model, as shown in Figure 1 、 2 and 3, the cushion block assembly includes first cushion block group 21 and second cushion block group 22, and first cushion block group 21 and second cushion block group 22 are arranged at intervals along the first direction. In the embodiment, first cushion block group 21 and second cushion block group 22 can support the two ends of the engine body in the first direction, ensuring the static stability of the engine body. Second positioning part 41 is located between first cushion block group 21 and second cushion block group 22, which can ensure that second positioning part 41 can contact the engine body between first cushion block group 21 and second cushion block group 22, without the occurrence of misalignment between second positioning part 41 and the engine body in the first direction, improving the reliability.

[0040] In some embodiments of the utility model, as shown in Figure 1 、 2As shown in FIGS. 1-3, the cushion block assembly further comprises a third cushion block group 23, and the positioning device further comprises a third positioning assembly 50, the third positioning assembly 50 comprises a third positioning member 51 arranged on the base 10, the third positioning member 51 and the third cushion block group 23 are arranged on the side of the second cushion block group 22 away from the first cushion block group 21, the third positioning member 51 is located between the second cushion block group 22 and the third cushion block group 23 and can move along the second direction. In the embodiment, when the engine block is large, only the first cushion block group 21 and the third cushion block group 23 are used to support the engine block, which can maximize the support of the longest two ends of the engine block along the first direction, thereby improving the stability of the engine block. And in the case of a large engine block, the second positioning member 41 and / or the third positioning member 51 can be used to abut against the engine block, thereby achieving positioning, which can position the engine block at a relatively close position (i.e., the abutting position of the second positioning member 41) or a relatively far position (i.e., the abutting position of the third positioning member 51) or both positions (i.e., the abutting positions of the second positioning member 41 and the third positioning member 51) along the first direction, thereby improving reliability and positioning accuracy.

[0041] In some embodiments of the utility model, as shown in FIGS. 1-3, Figure 1 、 2 As shown in FIGS. 1-3, the maximum dimension of the second positioning member 41 along the third direction is smaller than the maximum dimension of the third positioning member 51 along the third direction, and the third direction, the first direction and the second direction are perpendicular to each other. In the embodiment, when the engine block is placed on the cushion block assembly in different postures, since the length of the engine block along the third direction is large, the second positioning member 41 cannot abut against the side surface of the engine block, at this time, the third positioning member 51 is used to abut against the side surface of the engine block, thereby achieving positioning and improving reliability.

[0042] In some embodiments of the utility model, third positioning assembly 50 still includes third slide rail, third screw rod and third drive part which are respectively arranged on base 10, third positioning piece 51 is connected with third screw rod, so that the rotary motion of third screw rod is converted into the linear motion of third positioning piece 51, third positioning piece 51 is connected with third slide rail, third screw rod is arranged in third slide rail and extends along second direction, and one end of third screw rod is connected with third drive part, and third drive part is used to drive third screw rod to rotate, so as to drive third positioning piece 51 to move along second direction. In the embodiment, third drive part can be motor or other parts that can drive third screw rod to rotate, third positioning piece 51 is arranged at the top end of third slide rail and cooperates with third slide rail, one end of third screw rod passes through third positioning piece 51 and cooperates with third positioning piece 51, the other end of third screw rod is connected with third drive part, third drive part can drive third screw rod to rotate, when third screw rod rotates, third positioning piece 51 can move along second direction, and then third positioning piece 51 contacts different positions in second direction, and then positioning is realized.

[0043] In some embodiments of the utility model, as shown in Figure 1 、 2 and 3, first pad block group 21, second pad block group 22 and third pad block group 23 respectively include a plurality of pad blocks 24 which are arranged at intervals along second direction. In the embodiment, a plurality of pad blocks 24 are arranged along second direction, which can increase the contact area between pad block assembly and engine body, thereby increasing the support area and reducing the possibility of engine body slipping from pad block assembly.

[0044] In some embodiments of the utility model, pad block 24 is a rubber piece. In the embodiment, the rubber piece can increase the friction between engine body and pad block 24, further reduce the possibility of engine body slipping from pad block 24, and the rubber piece itself has elasticity and can also protect the surface of engine body.

[0045] In some embodiments of the utility model, as shown in Figure 1 、 2 and 3, the maximum dimension of first positioning piece 31 along third direction is equal to the maximum dimension of second positioning piece 41 along third direction, and third direction, first direction and second direction are arranged perpendicularly two by two. In the embodiment, the above arrangement is suitable for the general case that the length of engine body along third direction, and cooperating with the maximum dimension of second positioning piece 41 along third direction being smaller than the maximum dimension of third positioning piece 51 along third direction, can make second positioning piece 41 and third positioning piece 51 abut and position a plurality of different models of engine bodies, thereby improving the versatility and applicability.

[0046] Specifically, in the present embodiment, the first screw rod 33, the second screw rod and the third screw rod are all ball screw rods.

[0047] The specific working process of the positioning device in the present embodiment is as follows:

[0048] 1. Installation of the positioning device: install the positioning device for the engine body on the production line, and ensure that the base 10 is stable and firm. According to the model and size of the engine body, adjust the positions of the first positioning member 31 and the second positioning member 41 (or the third positioning member 51) so that they can abut against the adjacent two sides of the engine body that need to be positioned.

[0049] 2. Positioning of the engine body: place the engine body on the positioning device and abut it against the first positioning member 31 and the second positioning member 41 (or the third positioning member 51), thereby achieving accurate positioning of the engine body. Check whether the positioning is accurate, and if there is any deviation, adjust it in time.

[0050] 3. Exit of the positioning device from the positioning: when the positioning device needs to exit from the positioning, act on the first positioning member 31 by means of the high-precision first screw rod 33, and act on the second positioning member 41 (or act on the third positioning member 51 by means of the high-precision third screw rod), so as to achieve smooth and accurate movement. The rotary motion of the screw rod is converted into linear motion, which pushes the positioning member connected thereto to slowly exit the current positioning position along the slide rail, ensuring that the exit process is efficient and does not produce additional deviation.

[0051] 4. Measurement by the three-coordinate instrument: after the first positioning member 31 and the second positioning member 41 (or the third positioning member 51) exit a safe distance, use the probe of the three-coordinate instrument to measure the engine body.

[0052] 5. Change of the posture of the engine body: after the measurement of the current posture of the engine body is completed, hoist the engine body by the crane, and then drive the first driving member 34 to move the first positioning member 31, and drive the second driving member to move the second positioning member 41 (or drive the third driving member to move the third positioning member 51), so that they can abut against the adjacent two sides of the engine body that need to be positioned after the posture is changed. After the posture of the engine body is changed, place it on the positioning device and achieve abutment with the first positioning member 31 and the second positioning member 41 (or the third positioning member 51), and then realize positioning. After the positioning is completed, act on the first positioning member 31 by means of the high-precision first screw rod 33, and act on the second positioning member 41 (or act on the third positioning member 51 by means of the high-precision third screw rod), so that the positioning member moves to a safe position, and then the probe measures the engine body again.

[0053] The positioning device can realize accurate positioning of the engine body, realize control of multiple degrees of freedom of the engine body, and adapt to requirements of different postures. Secondly, the driving member drives the screw rod sliding rail combined structure, and only the button of the driving member needs to be pressed to complete the positioning and de-positioning operation, improve the work efficiency, ensure the accurate positioning of the engine body, greatly improve the automation degree of operation, and reduce the manual error. Thirdly, each part of the whole positioning device cooperates with each other, and the overall function is realized without interference. In addition, the position of the driving member, the screw rod and the positioning member can be adjusted according to the size and posture of the engine body of different models.

[0054] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A positioning device, characterized in that, include: Base (10); A pad assembly is disposed on the base (10) and is used to support the part to be measured; A first positioning component (30) is disposed on the base (10) and located on one side of the pad assembly along the first direction. The first positioning component (30) includes a first positioning member (31). The first positioning member (31) is movable relative to the base (10) along the second direction. The first direction and the second direction are intersecting. The first positioning member (31) is used to abut against one side of the object to be measured along the first direction. A second positioning component (40) is disposed on the base (10). The second positioning component (40) includes a second positioning member (41). At least a portion of the pad assembly is located between the first positioning member (31) and the second positioning member (41). The second positioning member (41) is movable relative to the base (10) in the second direction and is used to abut against one side of the object to be measured in the second direction. The pad assembly includes a first pad group (21) and a second pad group (22), the first pad group (21) and the second pad group (22) are spaced apart along the first direction, and the second positioning member (41) is located between the first pad group (21) and the second pad group (22); The pad assembly further includes a third pad group (23), and the positioning device further includes a third positioning component (50). The third positioning component (50) includes a third positioning member (51) disposed on the base (10). The third positioning member (51) and the third pad group (23) are both disposed on the side of the second pad group (22) away from the first pad group (21). The third positioning member (51) is located between the second pad group (22) and the third pad group (23) and is capable of moving along the second direction.

2. The positioning device according to claim 1, characterized in that, The first positioning component (30) further includes a first slide rail (32), a first lead screw (33) and a first drive member (34) respectively disposed on the base (10). The first positioning member (31) is connected to the first lead screw (33) to convert the rotational motion of the first lead screw (33) into the linear motion of the first positioning member (31). The first positioning member (31) is slidably connected to the first slide rail (32). The first lead screw (33) is disposed in the first slide rail (32) and extends along the second direction. One end of the first lead screw (33) is connected to the first drive member (34). The first drive member (34) is used to drive the first lead screw (33) to rotate so as to drive the first positioning member (31) to move along the second direction.

3. The positioning device according to claim 1, characterized in that, The second positioning component (40) further includes a second slide rail, a second lead screw, and a second driving member respectively disposed on the base (10). The second positioning member (41) is connected to the second lead screw to convert the rotational motion of the second lead screw into the linear motion of the second positioning member (41). The second positioning member (41) is slidably connected to the second slide rail. The second lead screw is disposed in the second slide rail and extends along the second direction. One end of the second lead screw is connected to the second driving member. The second driving member is used to drive the second lead screw to rotate so as to move the second positioning member (41) along the second direction.

4. The positioning device according to claim 1, characterized in that, The maximum dimension of the second positioning member (41) along the third direction is smaller than the maximum dimension of the third positioning member (51) along the third direction, and the third direction, the first direction and the second direction are arranged perpendicularly to each other.

5. The positioning device according to claim 1, characterized in that, The third positioning component (50) further includes a third slide rail, a third lead screw, and a third drive member respectively disposed on the base (10). The third positioning member (51) is connected to the third lead screw to convert the rotational motion of the third lead screw into the linear motion of the third positioning member (51). The third positioning member (51) is slidably connected to the third slide rail. The third lead screw is disposed in the third slide rail and extends along the second direction. One end of the third lead screw is connected to the third drive member. The third drive member is used to drive the third lead screw to rotate so as to move the third positioning member (51) along the second direction.

6. The positioning device according to claim 1, characterized in that, The first pad group (21), the second pad group (22) and the third pad group (23) each include a plurality of pads (24) spaced apart along the second direction.

7. The positioning device according to claim 6, characterized in that, The pad (24) is a rubber component.

8. The positioning device according to claim 1, characterized in that, The maximum dimension of the first positioning member (31) along the third direction is equal to the maximum dimension of the second positioning member (41) along the third direction, and the third direction, the first direction, and the second direction are arranged perpendicularly to each other.

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