Positioning device and welding machine

Abstract

The utility model provides a positioning device and a welding machine, and relates to the technical field of cross-flow fan blade production. The positioning device comprises a frame body, a driving mechanism and a plurality of positioning mechanisms; the frame body comprises a first panel, a second panel, a supporting piece and a positioning core; one end, far away from the second panel, of the positioning core penetrates through the first panel; a plurality of linear grooves are formed in the first panel, and the extending directions of the linear grooves all face the positioning core; the driving mechanism comprises a driving part and a cam, the telescopic end of the driving part is connected with the cam, and a plurality of guide grooves are formed in the cam; the positioning mechanism comprises a positioning assembly and a rotating part; the rotating piece is connected with the positioning assembly; the positioning assembly is movably arranged in the linear groove, and the rotating piece is movably arranged in the guide groove. The telescopic end of the driving part can drive the cam to rotate, so that the multiple rotating parts are driven to move in the corresponding guide grooves, and then the multiple positioning assemblies are driven to move in the corresponding linear grooves. The positioning device can perform center positioning on the workpiece.

Description

Technical Field

[0001] The present application relates to the technical field of crossflow fan blade production, and in particular to a positioning device and a welding machine. Background Art

[0002] The middle section, end cover, shaft cover, shaft cover blade, and end cover blade are all parts of the crossflow blade. Crossflow blade welding refers to assembling the parts together by welding. Before grabbing and welding the parts, a positioning device is required to center the parts. At present, the multiple jaws of the existing positioning device are usually driven by multiple cylinders respectively, which results in different moving distances of each jaw, resulting in low center positioning accuracy of the parts. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the present application provides a positioning device and a welding machine.

[0004] This application provides the following technical solutions:

[0005] In a first aspect, the present application provides a positioning device, the positioning device comprising:

[0006] A frame, the frame comprising a first panel, a second panel, a support member and a positioning core; the first panel and the second panel are arranged in parallel, and there is a accommodating space between the first panel and the second panel; one end of the support member is arranged on the first panel, and the end of the support member away from the first panel is arranged on the second panel; one end of the positioning core is arranged on the second panel, and the end of the positioning core away from the second panel is passed through the first panel; a plurality of linear grooves are provided on the first panel, and the plurality of linear grooves are evenly arranged around the circumference of the first panel, and the extension directions of the plurality of linear grooves are all toward the positioning core;

[0007] A driving mechanism, the driving mechanism comprising a driving member and a cam, the telescopic end of the driving member is connected to the cam, the cam is rotatably disposed in the accommodating space, a plurality of guide grooves are provided on the cam, and the plurality of guide grooves are evenly arranged around the circumference of the cam;

[0008] A plurality of positioning mechanisms, wherein the positioning mechanisms include a positioning assembly and a rotating member; the rotating member is connected to the positioning assembly; the positioning assembly is movably disposed in the linear groove, and the rotating member is movably disposed in the guide groove;

[0009] The telescopic end of the driving member can drive the cam to rotate, and when the cam rotates, it can drive the plurality of rotating members to move in the corresponding guide grooves respectively, thereby driving the plurality of positioning components to move in the corresponding linear grooves respectively.

[0010] In a possible embodiment, the frame also includes a connecting member, a bearing and a seat; the connecting member is arranged on a side of the first panel close to the second panel, the seat is rotatably matched with the connecting member through the bearing, and the seat is respectively connected to the telescopic end of the cam and the driving member.

[0011] In a possible implementation manner, two limiting portions are provided on the connecting member, and the bearing is provided between the two limiting portions.

[0012] In a possible implementation manner, the cam is connected to a side of the base body close to the first panel, and a side of the base body away from the first panel is connected to the telescopic end of the driving member.

[0013] In a possible implementation manner, the positioning assembly includes a clamping jaw and a mounting member connected to each other, the mounting member is movably disposed in the linear groove, and the rotating member is connected to the mounting member.

[0014] In a possible implementation manner, the clamp includes a body and a supporting portion, one end of the body is connected to the mounting member, and the supporting portion is disposed at an end of the body away from the mounting member.

[0015] In a possible embodiment, the positioning device also includes a guide member and a sliding member, the guide member is arranged on the side of the first panel away from the second panel, the extension direction of the guide member is the same as the extension direction of the linear groove, the sliding member slides with the guide member, and the sliding member is connected to the positioning assembly.

[0016] In a possible implementation manner, a mounting groove is formed on a side of the first panel away from the second panel, and the guide member is disposed in the mounting groove.

[0017] In a possible implementation manner, a cavity is provided inside the main body of the positioning core, and a mounting portion is provided on the inner wall of the cavity.

[0018] In a second aspect, the present application also provides a welding machine, which includes the above-mentioned positioning device.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The positioning device provided by the present application has a positioning core used to carry a workpiece, and the telescopic end of the driving member can drive the cam to rotate in the accommodating space. When the cam rotates, it can drive multiple rotating members to move in corresponding guide grooves respectively, thereby driving multiple positioning components to move in corresponding linear grooves respectively, thereby enabling multiple positioning components to move toward the workpiece on the positioning core at the same time and respectively abut against the workpiece to achieve the center positioning of the workpiece. The moving distances of multiple positioning components of the positioning device of the present application are all the same, so that multiple positioning components can abut against the workpiece at the same time, thereby effectively improving the center positioning accuracy of the workpiece.

[0021] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a positioning device according to an embodiment of the present application is shown;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a positioning device according to an embodiment of the present application from another perspective is shown;

[0025] Figure 3 A schematic diagram of the three-dimensional structure of a first panel according to an embodiment of the present application is shown;

[0026] Figure 4 A three-dimensional structural diagram of a cam according to an embodiment of the present application is shown;

[0027] Figure 5 An internal schematic diagram of a positioning device according to an embodiment of the present application is shown;

[0028] Figure 6 Shows Figure 5 The enlarged schematic diagram of point A in the middle;

[0029] Figure 7 A schematic diagram of the three-dimensional structure of a positioning core according to an embodiment of the present application is shown;

[0030] Figure 8 A three-dimensional structural schematic diagram of a positioning mechanism according to an embodiment of the present application is shown.

[0031] Description of main component symbols:

[0032] 100-positioning device; 110-frame; 111-first panel; 1111-linear groove; 1111a-first groove body; 1111b-second groove body; 1112-installation groove; 1113-through hole; 112-second panel; 113-support member; 114-positioning core; 1141-main body; 1142-installation part; 115-connecting member; 1151-limiting part; 116-bearing; 117-seat; 120-driving mechanism; 121-driving member; 122-cam; 1221-guide groove; 130-positioning mechanism; 131-clamping claw; 132-installation member; 133-rotating member; 140-guide member; 141-sliding member. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] Embodiment 1

[0039] See also Figure 1 and Figure 2 In one embodiment of the present application, a positioning device 100 is provided. The positioning device 100 is used to perform center positioning on a workpiece.

[0040] The workpieces of this embodiment are the scattered parts of the crossflow fan blades, and the scattered parts of the crossflow fan blades include a middle section, an end cover, a shaft cover, a shaft cover fan blade, and an end cover fan blade.

[0041] See also Figure 1 and Figure 2 The positioning device 100 includes a frame 110 , a driving mechanism 120 and a plurality of positioning mechanisms 130 .

[0042] The frame 110 includes a first panel 111, a second panel 112, a support member 113 and a positioning core 114; the first panel 111 and the second panel 112 are arranged in parallel; one end of the support member 113 is arranged on the first panel 111, and the end of the support member 113 away from the first panel 111 is arranged on the second panel 112; the support member 113 is used to support the first panel 111 and the second panel 112 so that there is an accommodating space between the first panel 111 and the second panel 112; one end of the positioning core 114 is arranged on the second panel 112, and the end of the positioning core 114 away from the second panel 112 is passed through the first panel 111; the positioning core 114 is used to carry the workpiece; a plurality of linear grooves 1111 are provided on the first panel 111, and the plurality of linear grooves 1111 are evenly arranged around the circumference of the first panel 111, and the extension directions of the plurality of linear grooves 1111 are all toward the positioning core 114.

[0043] The driving mechanism 120 includes a driving member 121 and a cam 122 . The telescopic end of the driving member 121 is connected to the cam 122 . The cam 122 is rotatably disposed in the accommodating space. The cam 122 is provided with a plurality of guide grooves 1221 . The plurality of guide grooves 1221 are evenly arranged around the circumference of the cam 122 .

[0044] The positioning mechanism 130 includes a positioning assembly and a rotating member 133; the rotating member 133 is connected to the positioning assembly; the positioning assembly is movably disposed in the linear groove 1111, and the rotating member 133 is movably disposed in the guide groove 1221. A plurality of the positioning assemblies are movably disposed in the corresponding linear grooves 1111, and a plurality of the rotating members 133 are movably disposed in the corresponding guide grooves 1221.

[0045] When the telescopic end of the driving member 121 drives the cam 122 to rotate in the accommodating space, the cam 122 can drive the multiple rotating members 133 to move in the corresponding guide grooves 1221 respectively, thereby driving the multiple positioning components to move in the corresponding linear grooves 1111 respectively, and then enable the multiple positioning components to move toward the workpiece on the positioning core 114 at the same time, and respectively abut against the workpiece to achieve the center positioning of the workpiece.

[0046] The positioning device 100 of this embodiment can simultaneously drive the movement of multiple positioning components through the cooperation of the cam 122 and the multiple rotating parts 133, so that the movement distances of the multiple positioning components are the same, and the multiple positioning components are simultaneously supported on the workpiece, thereby effectively improving the center positioning accuracy of the workpiece.

[0047] In some embodiments, see Figure 5 and Figure 6 The frame 110 further includes a connecting member 115, a bearing 116 and a seat 117; the connecting member 115 is disposed in the accommodation space, the seat 117 is rotatably matched with the connecting member 115 through the bearing 116, and the seat 117 is respectively connected to the cam 122 and the telescopic end of the driving member 121. The telescopic end of the driving member 121 can drive the seat 117 and the connecting member 115 to rotate relative to each other, thereby driving the cam 122 to rotate.

[0048] In some embodiments, two limiting portions 1151 are disposed on the outer surface of the connecting member 115 , and the bearing 116 is disposed between the two limiting portions 1151 . The two limiting portions 1151 are used to limit the movement of the bearing 116 .

[0049] In some embodiments, the cam 122 is connected to a side of the base 117 close to the first panel 111 , and a side of the base 117 away from the first panel 111 is connected to the telescopic end of the driving member 121 .

[0050] In some embodiments, see Figure 1 The driving member 121 is disposed in the accommodating space to reduce the volume of the positioning device 100 and facilitate miniaturization of the positioning device 100 .

[0051] Exemplarily, the driving member 121 is a cylinder, and the telescopic end of the driving member 121 is a telescopic rod of the cylinder. The telescopic end of the driving member 121 can telescopically move along a straight line to drive the cam 122 to rotate.

[0052] See also Figure 4 , the plurality of guide grooves 1221 are evenly arranged around the circumference of the cam 122 .

[0053] In some embodiments, the guide groove 1221 is an arc-shaped groove, but is not limited thereto. In other embodiments, the guide groove 1221 may also be an oblique groove.

[0054] In some embodiments, see Figure 1 and Figure 7 A cavity is defined inside the main body 1141 of the positioning core 114 , and a mounting portion 1142 is disposed on the inner wall of the cavity. The mounting portion 1142 is used to support the workpiece.

[0055] Exemplarily, the mounting portion 1142 protrudes from the inner wall of the cavity, and the shape of the mounting portion 1142 is substantially stepped.

[0056] In some embodiments, see Figure 2 , Figure 3 and Figure 8 The positioning assembly includes a clamping jaw 131 and a mounting member 132 connected to each other. The mounting member 132 is movably disposed in the linear groove 1111 , and the rotating member 133 is disposed at one end of the mounting member 132 away from the clamping jaw 131 .

[0057] When the rotating member 133 moves in the guide groove 1221 , the rotating member 133 can drive the mounting member 132 to move in the linear groove 1111 , thereby enabling the clamping jaw 131 to approach or move away from the workpiece on the positioning core 114 .

[0058] In some embodiments, the rotating member 133 is a rolling bearing, so that the rotating member 133 can be rotatably disposed in the guide groove 1221, thereby facilitating the movement of the rotating member 133 in the guide groove 1221.

[0059] In some embodiments, the linear groove 1111 includes an independent first groove body 1111a and a second groove body 1111b, one end of the mounting member 132 is movably disposed on the first groove body 1111a, and the other end is movably disposed on the second groove body 1111b, and the extension directions of the first groove body 1111a and the second groove body 1111b are both toward the positioning core 114.

[0060] In some embodiments, see Figure 7 The clamping jaw 131 includes a body and a resisting portion, one end of the body is connected to the mounting member 132, and the resisting portion is disposed at one end of the body away from the mounting member 132. The resisting portion can resist the workpiece on the positioning core 114.

[0061] Furthermore, the cross-sectional area of ​​one end of the supporting portion away from the main body is larger than the cross-sectional area of ​​the other end, so as to increase the contact area with the workpiece and further improve the center positioning effect.

[0062] In some embodiments, see Figure 1 and Figure 3 A through hole 1113 is formed at the center of the first panel 111 , and one end of the positioning core 114 away from the second panel 112 is inserted into the through hole 1113 .

[0063] In some embodiments, see Figure 5The positioning device 100 also includes a guide member 140 and a sliding member 141. The guide member 140 is arranged on a side of the first panel 111 away from the second panel 112. The extension direction of the guide member 140 is the same as the extension direction of the linear groove 1111. The sliding member 141 slides with the guide member 140, and the sliding member 141 is connected to the positioning assembly.

[0064] The cooperation between the guide member 140 and the sliding member 141 can limit the moving direction of the positioning assembly, thereby ensuring that the positioning assembly moves along the extending direction of the linear groove 1111 .

[0065] Exemplarily, the guide member 140 is a guide rail, and the sliding member 141 is a slider.

[0066] In some embodiments, see Figure 3 A mounting groove 1112 is formed on a side of the first panel 111 away from the second panel 112 , and the guide member 140 is disposed in the mounting groove 1112 .

[0067] In some embodiments, the guide member 140 is disposed between the first groove body 1111a and the second groove body 1111b.

[0068] Embodiment 2

[0069] The present application also provides a welding machine, comprising the positioning device 100 of any of the above embodiments.

[0070] The welding machine is used for welding and assembling the separate parts of the crossflow fan blade.

[0071] The welding machine provided in this embodiment has the positioning device 100 provided in any of the above embodiments, and therefore has all the beneficial effects of the positioning device 100 provided in any of the above embodiments, which will not be described one by one here.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A positioning device, characterized in that: include: A frame, the frame comprising a first panel, a second panel, a support member and a positioning core; the first panel and the second panel are arranged in parallel, and there is a accommodating space between the first panel and the second panel; one end of the support member is arranged on the first panel, and the end of the support member away from the first panel is arranged on the second panel; one end of the positioning core is arranged on the second panel, and the end of the positioning core away from the second panel is passed through the first panel; a plurality of linear grooves are provided on the first panel, and the plurality of linear grooves are evenly arranged around the circumference of the first panel, and the extension directions of the plurality of linear grooves are all toward the positioning core; A driving mechanism, the driving mechanism comprising a driving member and a cam, the telescopic end of the driving member is connected to the cam, the cam is rotatably disposed in the accommodating space, a plurality of guide grooves are provided on the cam, and the plurality of guide grooves are evenly arranged around the circumference of the cam; A plurality of positioning mechanisms, wherein the positioning mechanisms include a positioning assembly and a rotating member; the rotating member is connected to the positioning assembly; the positioning assembly is movably disposed in the linear groove, and the rotating member is movably disposed in the guide groove; The telescopic end of the driving member can drive the cam to rotate, and when the cam rotates, it can drive the plurality of rotating members to move in the corresponding guide grooves respectively, thereby driving the plurality of positioning components to move in the corresponding linear grooves respectively.

2. The positioning device according to claim 1, characterized in that: The frame also includes a connecting member, a bearing and a seat; the connecting member is arranged on a side of the first panel close to the second panel, the seat is rotatably matched with the connecting member through the bearing, and the seat is respectively connected to the telescopic end of the cam and the driving member.

3. The positioning device according to claim 2, characterized in that: The connecting member is provided with two limiting parts, and the bearing is arranged between the two limiting parts.

4. The positioning device according to claim 2, characterized in that: The cam is connected to a side of the base body close to the first panel, and a side of the base body away from the first panel is connected to the telescopic end of the driving member.

5. The positioning device according to any one of claims 1 to 4, characterized in that: The positioning assembly comprises a clamping claw and a mounting member connected to each other. The mounting member is movably arranged in the linear groove, and the rotating member is connected to the mounting member.

6. The positioning device according to claim 5, characterized in that: The clamping jaw comprises a body and a resisting portion, one end of the body is connected to the mounting member, and the resisting portion is arranged at one end of the body away from the mounting member.

7. The positioning device according to any one of claims 1 to 4, characterized in that: The positioning device also includes a guide member and a sliding member. The guide member is arranged on a side of the first panel away from the second panel. The extension direction of the guide member is the same as the extension direction of the linear groove. The sliding member slides with the guide member and is connected to the positioning assembly.

8. The positioning device according to claim 7, characterized in that: A mounting groove is formed on a side of the first panel away from the second panel, and the guide member is arranged in the mounting groove.

9. The positioning device according to any one of claims 1 to 4, characterized in that: A cavity is provided inside the main body of the positioning core, and a mounting portion is provided on the inner wall of the cavity.

10. A welding machine, characterized in that: A positioning device comprising any one of claims 1 to 9.

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