Floating positioning mechanism, tool clamp and welding station

Abstract

The utility model discloses a floating positioning mechanism, a work fixture and a welding station, the floating positioning mechanism comprises: a mounting part suitable for being mounted to a part to be positioned; the shell is fixed to the mounting part, and a mounting cavity extending in the first direction is formed in the shell; the positioning column is slidably arranged in the mounting cavity in the first direction, and at least part of the positioning column protrudes out of the shell at the first position so as to be used for positioning a part to be machined; the mounting table is slidably arranged in the mounting cavity, and the positioning column is in sliding fit with the mounting table; the elastic piece is arranged between the positioning column and the mounting table, and the elastic piece has an elastic trend for driving the positioning column to slide in the direction away from the mounting table. According to the floating positioning mechanism, the positioning column can be driven by the mounting table to slide in the direction of being separated from the part, and the problem that the part is difficult to disassemble due to the fact that the positioning column and the positioning hole are clamped tightly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a floating positioning mechanism, a fixture and a welding station. Background Art

[0002] During the machining process of products, it is usually necessary to fix the parts to be machined through a fixture to ensure the stability of the parts to be machined, so as to facilitate the machining operation. In the related art, the fixture is provided with positioning posts, and the parts to be machined have positioning holes by themselves. Before the fixture fixes the parts, the positioning of the parts is usually realized through the cooperation of the positioning posts and the positioning holes, and then the parts are clamped to fix the parts.

[0003] In the above technical solution, the position of the part on the fixture is determined through the cooperation of the positioning post and the positioning hole, which improves the reliability of machining. However, after the machining operation of the part is completed, the positioning post and the positioning hole are likely to be stuck tightly, and it is difficult to disassemble the part from the fixture. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a floating positioning mechanism, in which the mounting table can drive the positioning post to slide in the direction away from the part, solving the problem that the part is difficult to disassemble due to the tight clamping of the positioning post and the positioning hole, and the main body structure and the mounting part are of a split structure, and the position of the main body structure can be adjusted, which is beneficial to improving the position accuracy of the main body structure on the fixture.

[0005] The utility model also provides a fixture including the above floating positioning mechanism.

[0006] The utility model also provides a welding station including the above fixture.

[0007] The floating positioning mechanism according to the embodiment of the utility model includes: a mounting part, which is suitable for being mounted to the part to be positioned; a housing, which is fixed to the mounting part, and an installation cavity extending along a first direction is arranged in the housing; a positioning post, which is slidably arranged in the installation cavity between a first position and a second position along the first direction, at the first position, at least part of the positioning post protrudes from the housing for positioning the part to be machined, at the second position, the positioning post is located in the installation cavity or the length of the positioning post protruding from the housing is less than that at the first position; a mounting table, which is slidably arranged in the installation cavity, and the positioning post is slidably matched with the mounting table; an elastic member, which is arranged between the positioning post and the mounting table, and the elastic member has an elastic tendency to drive the positioning post to slide in the direction away from the mounting table.

[0008] According to the floating positioning mechanism of the embodiment of the present utility model, by arranging an elastic member between the positioning column and the mounting table, the positioning column can float relative to the mounting table in the first direction, so as to cooperate with the positioning holes of different parts (i.e., parts with machining precision errors), improving the applicability of the floating positioning mechanism; the mounting table can drive the positioning column to slide in the direction away from the part, solving the problem that the part is difficult to disassemble due to the positioning column being clamped with the positioning hole, and improving the reliability of the floating positioning structure; the main body structure and the mounting part are of a split structure. After the mounting part is fixed to the part to be positioned of the fixture, the position of the main body structure can also be adjusted by adjusting the relative position between the main body structure and the mounting part, which is beneficial to improving the position accuracy of the main body structure on the fixture and the accuracy of the fixture in positioning the part to be machined.

[0009] In some embodiments, the mounting part includes a first part and a second part arranged at an angle, the first part extends along the first direction, and the housing is fixed to the first part.

[0010] In some embodiments, the second part includes a first fixing part, an adjusting piece and a second fixing part, the adjusting piece is replaceably arranged between the first fixing part and the second fixing part, and the first part and the first fixing part are an integral part and arranged at an angle.

[0011] In some embodiments, the first fixing part includes a first side wall and a second side wall that intersect and are adjacent to each other, and the adjusting piece is arranged between the second fixing part and the first side wall and between the second fixing part and the second side wall.

[0012] In some embodiments, the floating positioning mechanism further includes: a connecting piece, the connecting piece is fixedly connected to the positioning column, and the connecting piece is slidably connected to the mounting table; a first limiting piece arranged on the mounting table, and the first limiting piece is adapted to abut against the connecting piece to limit the connecting piece from detaching from the mounting table.

[0013] In some embodiments, the first limiting piece is provided with a first through hole, and the connecting piece slidably passes through the first through hole.

[0014] In some embodiments, the mounting cavity includes a first sliding groove and a second sliding groove extending along the first direction, the opening areas of the first sliding groove and the second sliding groove are different, the positioning column is slidably matched with the first sliding groove, and the mounting table is slidably matched with the second sliding groove.

[0015] In some embodiments, the housing is further provided with an avoidance groove communicated with the second sliding groove, and when one side of the mounting table facing the first sliding groove abuts against the inner wall of the second sliding groove, the first limiting piece is located in the avoidance groove.

[0016] In some embodiments, the housing is an integrally formed part, and the first chute and the second chute communicate with each other to penetrate through the housing.

[0017] In some embodiments, the elastic member is sleeved on the connecting member, and two ends of the elastic member respectively abut against the positioning post and the first limiting member.

[0018] In some embodiments, at the first position, a positioning portion is provided on a part of the positioning post protruding from the housing, and a cross-section of the positioning portion gradually shrinks in a direction away from the mounting member.

[0019] In some embodiments, the floating positioning mechanism further includes: a driving member, the driving member is connected to the mounting table, and the driving member is configured to drive the mounting table to slide so as to drive the positioning post to disengage from the part.

[0020] The jig according to an embodiment of the present invention includes: a base and the floating positioning mechanism in the above technical solution, and the mounting portion is fixed to the base.

[0021] The welding station according to an embodiment of the present invention includes: the jig in the above technical solution.

[0022] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0024] Figure 1 is a schematic diagram of a floating positioning mechanism according to an embodiment of the present invention;

[0025] Figure 2 is Figure 1 a top view of the floating positioning mechanism in

[0026] Figure 3 is a sectional view taken along the line A-A in Figure 2 ;

[0027] Figure 4 is a schematic diagram of a jig according to an embodiment of the present invention;

[0028] Figure 5 is a schematic diagram of the cooperation between the base and the floating positioning mechanism;

[0029] Figure 6 is a schematic diagram of a welding station according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] 1000, welding station; 2000, tooling fixture; 3000, welding robot;

[0032] 200, base; 300, floating positioning mechanism;

[0033] 310, mounting part; 311, first part; 312, second part; 3121, first fixing part; 3122, adjusting piece; 3123, second fixing part;

[0034] 320, housing; 321, mounting cavity; 3211, first chute; 3212, second chute; 3213, avoidance groove;

[0035] 330, positioning column; 331, positioning part;

[0036] 340, mounting table; 341, third chute; 342, connecting column;

[0037] 350, elastic member;

[0038] 360, connecting member;

[0039] 370, first limiting member; 371, first through hole;

[0040] 380, oil cylinder; 381, piston. Detailed implementation manners

[0041] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, features defined as "first", "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0043] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0044] Reference is made below Figures 1 - 6 to describe the floating positioning mechanism 300 according to an embodiment of the present utility model.

[0045] Referring to Figure 1 、 Figure 4 and Figure 5 , the floating positioning mechanism 300 according to an embodiment of the present utility model includes: a mounting portion 310 and the main body structure of the floating positioning mechanism 300. The main body structure of the floating positioning mechanism 300 is fixed to the mounting portion 310. The mounting portion 310 is adapted to be mounted to the portion to be positioned of the tooling fixture 2000. That is to say, the main body structure of the floating positioning mechanism 300 realizes its own fixation through the mounting portion 310 to ensure the stability of the main body structure.

[0046] Moreover, since the main body structure and the mounting portion 310 are separate structures, after the mounting portion 310 is fixed to the portion to be positioned of the tooling fixture 2000, the position of the main body structure can also be adjusted by adjusting the relative position between the main body structure and the mounting portion 310, which is beneficial to improving the position accuracy of the main body structure on the tooling fixture 2000 and enhancing the accuracy of the tooling fixture 2000 in positioning the parts to be processed.

[0047] It should be noted that the relative position between the above-mentioned adjustment main structure and the installation part 310 can be an operation before fixing the main structure to the installation part 310, or the main structure and the installation part 310 are configured to be detachably connected, the fixed connection between the main mechanism and the installation part 310 can be released, and after adjusting the position of the main structure, the main structure is fixed to the installation part 310.

[0048] Referring to Figure 1 、 Figure 2 and Figure 3 , the main structure of the floating positioning mechanism 300 includes: a housing 320, a positioning post 330, a mounting table 340 and an elastic member 350. Among them, the main structure is fixed to the installation part 310 through the housing 320. An installation cavity 321 extending in the first direction is provided in the housing 320. The positioning post 330 is slidably arranged in the installation cavity 321 between a first position and a second position along the first direction. In the first position, at least a part of the positioning post 330 protrudes from the housing 320 for positioning the part to be processed. In the second position, the positioning post 330 is located in the installation cavity 321 or the length of the positioning post 330 protruding from the housing 320 is lower than that in the first position.

[0049] The mounting table 340 is slidably arranged in the installation cavity 321. The positioning post 330 is slidably matched with the mounting table 340. The elastic member 350 is arranged between the positioning post 330 and the mounting table 340. The elastic member 350 has an elastic tendency to drive the positioning post 330 to slide in a direction away from the mounting table 340, so that the positioning post 330 can float relative to the mounting table 340.

[0050] When the floating positioning mechanism 300 needs to position the part to be processed, the positioning post 330 is in the first position. The part of the positioning post 330 protruding from the housing 320 is matched with the positioning hole of the part to be processed to position the part to be processed. After the part is processed, the mounting table 340 can be driven to slide in a direction away from the part to drive the positioning post 330 to slide in a direction away from the part, so as to disengage from the part, solving the problem that it is difficult to disassemble the part due to the positioning post 330 being stuck with the positioning hole, and improving the reliability of the floating positioning mechanism 300.

[0051] It should be noted that the sliding of the mounting table 340 can be automatically driven or manually driven. For example, in some embodiments, the floating positioning mechanism 300 further includes a driving member connected to the mounting table 340, and the driving member is used to drive the mounting table 340 to slide so as to drive the positioning post 330 away from the part. The driving member can be an oil cylinder 380, a cylinder or other mechanisms that can drive the mounting table 340 to move linearly, and the present utility model does not limit this. In other embodiments, the mounting table 340 is connected with a driving rod, and a part of the driving rod is located outside the housing 320. The staff can drive the mounting table 340 to move by moving the driving rod, so as to drive the positioning post 330 to disengage from the positioning hole of the part.

[0052] Referring to Figure 1 , Figure 2 and Figure 3 , in some specific embodiments, the driving member is configured as an oil cylinder 380. The piston 381 of the oil cylinder 380 can move along the first direction. The piston 381 is provided with internal threads, and one end of the mounting table 340 away from the positioning post 330 is provided with a connecting column 342. The connecting column 342 is provided with external threads, and the connecting column 342 is threadedly connected with the piston 381. In the embodiments of the present utility model, the driving mode of the mounting table 340 is more automated, which is beneficial to the intelligence of the tooling fixture 2000, and the connection mode between the piston 381 and the mounting table 340 is simple, reducing the cost of the floating positioning mechanism 300.

[0053] In addition, because the accuracies of different parts to be processed are different, when the parts to be processed are placed on the tooling fixture 2000, there may be an error in the distance between the positioning hole and the positioning post 330 in the first direction. In order to enable the positioning post 330 to better cooperate with the positioning hole of the part, in the embodiments of the present utility model, an elastic member 350 is arranged between the positioning post 330 and the mounting table 340, so that the positioning post 330 has an elastic tendency to slide in the direction away from the mounting table 340. That is to say, the positioning post 330 can float relative to the mounting table 340 in the first direction, so as to cooperate with the positioning holes of different parts, improving the applicability of the floating positioning mechanism 300.

[0054] Referring to Figure 1 , Figure 2 and Figure 3 , in some further embodiments, at the first position, a positioning portion 331 is provided on the portion of the positioning post 330 protruding from the housing 320. The cross-section of the positioning portion 331 gradually shrinks in the direction away from the mounting table 340, so that the positioning post 330 can cooperate with positioning holes of different apertures, further improving the applicability of the floating positioning mechanism 300.

[0055] According to the floating positioning mechanism 300 of the embodiment of the present utility model, by arranging an elastic member 350 between the positioning column 330 and the mounting table 340, the positioning column 330 can float relative to the mounting table 340 in the first direction, so as to cooperate with the positioning holes of different parts (i.e., parts with machining precision errors), improving the applicability of the floating positioning mechanism 300; the mounting table 340 can drive the positioning column 330 to slide in the direction away from the part, solving the problem that it is difficult to disassemble the part due to the positioning column 330 being clamped with the positioning hole, and improving the reliability of the floating positioning structure; the main body structure and the mounting portion 310 are of a split structure. After the mounting portion 310 is fixed to the to-be-positioned portion of the fixture 2000, the position of the main body structure can also be adjusted by adjusting the relative position between the main body structure and the mounting portion 310, which is beneficial to improving the position accuracy of the main body structure on the fixture 2000 and the accuracy of the fixture 2000 in positioning the part to be machined.

[0056] Referring to Figure 1 、 Figure 2 and Figure 3 , in some embodiments, the mounting portion 310 includes a first portion 311 and a second portion 312 arranged at an angle. The first portion 311 extends along the first direction, and the housing 320 is fixed to the first portion 311.

[0057] In the embodiment of the present utility model, the second portion 312 is used to be mounted on the to-be-positioned portion of the fixture 2000. The housing 320 is fixed to the first portion 311, and the first portion 311 extends along the first direction, so that the main body structure can adjust its own position in the first direction, which is beneficial to improving the position accuracy of the main body structure on the fixture 2000 and further improving the accuracy of the fixture 2000 in positioning the part to be machined.

[0058] It should be noted that the angle between the first portion 311 and the second portion 312 can be 90 degrees, or 85 degrees, or an angle of other degrees. The present utility model does not limit this.

[0059] In some specific embodiments, the first portion 311 is provided with a first mounting hole, and a fastener passes through the first mounting hole and is connected to the housing 320, thereby fixing the housing 320 to the first portion 311. The fastener can be a screw or a bolt, with high connection reliability and low cost.

[0060] In some specific embodiments, a plurality of first mounting holes are provided. The plurality of first mounting holes are arranged along a first direction. The fastener can be connected to the housing 320 by passing through different first mounting holes, so as to adjust the position of the housing 320 in the first direction. In some other specific embodiments, the first mounting hole is a long hole extending along the first direction. After the fastener passes through the first mounting hole, the position of the housing 320 in the first direction is adjusted by moving in the first mounting hole, and then the fastener is tightened to fix the housing 320 to the first part 311.

[0061] Referring to Figure 1 、 Figure 2 and Figure 3 , in some embodiments, the second part 312 includes a first fixing part 3121, an adjusting piece 3122 and a second fixing part 3123. The adjusting piece 3122 is replaceably arranged between the first fixing part 3121 and the second fixing part 3123. The first part 311 and the first fixing part 3121 are an integral part and are arranged at an angle.

[0062] The first fixing part 3121 is used to connect with the part to be positioned of the tooling fixture 2000, so as to fix the floating positioning mechanism 300. The first part 311 and the first fixing part 3121 are an integral part, which ensures the strength of the overall structure of the mounting part 310 and the reliability of the installation of the main structure of the floating positioning mechanism 300.

[0063] When installing the floating positioning mechanism 300 on the part to be positioned of the tooling fixture 2000, first fix the second fixing part 3123 with a fastener, then place the adjusting piece 3122 between the second fixing part 3123 and the first fixing part 3121, and then fix the first fixing part 3121 with a fastener. If it is found through testing that the installation of the first fixing part 3121 is incorrect, the first fixing part 3121 can be disassembled and different thickness adjusting pieces 3122 can be replaced to adjust the position of the first fixing part 3121. After the first fixing part 3121 is installed in place, the first fixing part 3121 and the second fixing part 3123 are fixedly connected with a fastener to further improve the installation stability of the floating positioning mechanism 300.

[0064] Referring to Figure 1 、 Figure 2 and Figure 3 , in some specific embodiments, the angle between the first part 311 and the second part 312 is 90 degrees. The first fixing part 3121 includes a first side wall and a second side wall that intersect and are adjacent to each other. Adjusting pieces 3122 are provided between the second fixing part 3123 and the first side wall and between the second fixing part 3123 and the second side wall.

[0065] The first part 311 extends in a first direction, the first side wall extends in a second direction, and the second side wall extends in a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0066] In the embodiment of the present utility model, the adjustment of the position in the first direction can be achieved by adjusting the relative position between the main body structure and the first part 311; the adjustment of the position of the main body structure in the second direction can be achieved by replacing the shim 3122 between the second side wall and the second fixing part 3123; the adjustment of the position of the main body structure in the third direction can be achieved by replacing the shim 3122 between the first side wall and the second fixing part 3123.

[0067] Through the above technical solutions, the position accuracy of the main body structure on the fixture 2000 is further improved, and the accuracy of positioning the parts to be processed by the fixture 2000 is improved.

[0068] In some embodiments, the floating positioning mechanism 300 further includes: a connecting member 360 and a first limiting member 370. The connecting member 360 is fixedly connected to the positioning post 330, the connecting member 360 is slidably connected to the mounting table 340, the first limiting member 370 is disposed on the mounting table 340, and the first limiting member 370 is adapted to abut against the connecting member 360 to limit the connecting member 360 from detaching from the mounting table 340.

[0069] In the above technical solution, the positioning post 330 is slidably connected to the mounting table 340 through the connecting member 360. This connection method is simple and reduces the cost of the floating positioning mechanism 300.

[0070] In some specific embodiments, a third chute 341 is provided on one side of the mounting table 340 facing the positioning post 330. The first limiting member 370 is fixed to the notch of the third chute 341 through a fastener. The connecting member 360 is configured as a bolt. The bolt head of the connecting member 360 is located in the third chute 341, and the screw rod of the connecting member 360 passes through the first limiting member 370 and is threadedly connected to the positioning post 330.

[0071] In the embodiment of the present utility model, the structures of the connecting member 360 and the mounting table 340 are simple and convenient for assembly, further reducing the cost of the floating positioning mechanism 300.

[0072] In some further embodiments, the first limiting member 370 is provided with a first through hole 371. The connecting member 360 slidably passes through the first through hole 371. The sliding stability of the connecting member 360 is improved through the sliding fit between the connecting member 360 and the first through hole 371, and the sliding stability of the positioning post 330 is further improved.

[0073] In some embodiments, the elastic member 350 is configured as a spring, which reduces the cost of the floating positioning mechanism 300. The elastic member 350 is sleeved outside the connecting member 360, and both ends of the elastic member 350 are respectively abutted against the positioning post 330 and the first limiting member 370.

[0074] In the embodiment of the present utility model, the elastic member 350 is sleeved outside the connecting member 360, which ensures that the elastic member 350 can only elastically deform in the first direction, and improves the reliability of the floating of the positioning post 330.

[0075] In some embodiments, the installation cavity 321 includes a first sliding groove 3211 and a second sliding groove 3212 extending along the first direction. The opening areas of the first sliding groove 3211 and the second sliding groove 3212 are different. The positioning post 330 is slidably matched with the first sliding groove 3211, and the installation table 340 is slidably matched with the second sliding groove 3212.

[0076] In the above technical solution, the positioning post 330 is slidably matched with the first sliding groove 3211, and the installation table 340 is slidably matched with the second sliding groove 3212, which ensures the stability of the sliding of the positioning post 330 and the stability of the sliding of the installation table 340, and improves the reliability of the floating positioning mechanism 300.

[0077] In some specific embodiments, the opening area of the first sliding groove 3211 is smaller than the opening area of the second sliding groove 3212. When the installation table 340 slides towards the first sliding groove 3211, the inner wall of the second sliding groove 3212 can limit the sliding range of the installation table 340, avoiding the positioning post 330 protruding too much from the housing 320 and affecting the processing of parts.

[0078] Refer to Figure 1 、 Figure 2 and Figure 3 , in some embodiments, the housing 320 is further provided with an avoidance groove 3213 communicating with the second sliding groove 3212. When one side of the installation table 340 facing the first sliding groove 3211 abuts against the inner wall of the second sliding groove 3212, the first limiting member 370 is located in the avoidance groove 3213.

[0079] By providing the avoidance groove 3213, it is avoided that the first limiting member 370 collides with the inner wall of the installation cavity 321, reducing the risk of damage to the floating positioning mechanism 300.

[0080] In some embodiments, the housing 320 is an integrally formed part, and the first sliding groove 3211 and the second sliding groove 3212 communicate to penetrate through the housing 320.

[0081] The structure of the housing 320 in the embodiment of the present utility model is simple, easy to process, and reduces the cost of the floating positioning mechanism 300.

[0082] Refer to Figure 4 andFigure 5 According to the fixture 2000 of an embodiment of the present utility model, it includes: a base 200 and a floating positioning mechanism 300. The floating positioning mechanism 300 is the floating positioning mechanism 300 in the above technical solution, and the mounting portion 310 is fixed to the portion to be positioned of the base 200.

[0083] According to the fixture 2000 of an embodiment of the present utility model, by providing an elastic member 350 between the positioning post 330 and the mounting table 340, the positioning post 330 can float relative to the mounting table 340 in the first direction, so that it can cooperate with the positioning holes of different parts (i.e., parts with machining accuracy errors), improving the applicability of the floating positioning mechanism 300; the mounting table 340 can drive the positioning post 330 to slide in the direction away from the part, solving the problem that the part is difficult to disassemble due to the positioning post 330 being clamped with the positioning hole, and improving the reliability of the floating positioning structure; the main body structure and the mounting portion 310 are of a split structure. After the mounting portion 310 is fixed to the portion to be positioned of the base 200, the position of the main body structure can also be adjusted by adjusting the relative position between the main body structure and the mounting portion 310, which is beneficial to improving the position accuracy of the main body structure on the fixture 2000 and the accuracy of the fixture 2000 in positioning the part to be processed.

[0084] Refer to Figure 6 According to the welding station 1000 of an embodiment of the present utility model, it includes: a welding robot 3000 and the fixture 2000 in the above technical solution. The welding robot 3000 is used to weld the parts on the fixture 2000.

[0085] According to the welding station 1000 of an embodiment of the present utility model, by providing an elastic member 350 between the positioning post 330 and the mounting table 340, the positioning post 330 can float relative to the mounting table 340 in the first direction, so that it can cooperate with the positioning holes of different parts (i.e., parts with machining accuracy errors), improving the applicability of the floating positioning mechanism 300; the mounting table 340 can drive the positioning post 330 to slide in the direction away from the part, solving the problem that the part is difficult to disassemble due to the positioning post 330 being clamped with the positioning hole, and improving the reliability of the floating positioning structure; the main body structure and the mounting portion 310 are of a split structure. After the mounting portion 310 is fixed to the portion to be positioned of the base 200, the position of the main body structure can also be adjusted by adjusting the relative position between the main body structure and the mounting portion 310, which is beneficial to improving the position accuracy of the main body structure on the fixture 2000 and the accuracy of the fixture 2000 in positioning the part to be processed.

[0086] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0087] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A floating positioning mechanism, characterized in that: include: A mounting portion (310), wherein the mounting portion (310) is suitable for being mounted on the portion to be positioned; A housing (320), the housing (320) being fixed to the mounting portion (310), and a mounting cavity (321) extending along a first direction being provided in the housing (320); a positioning column (330), the positioning column (330) being slidably disposed in the installation cavity (321) between a first position and a second position along the first direction; in the first position, the positioning column (330) at least partially protrudes from the housing (320) for positioning a part to be processed; in the second position, the positioning column (330) is located in the installation cavity (321) or the length of the positioning column (330) protruding from the housing (320) is less than that in the first position; A mounting platform (340), wherein the mounting platform (340) can be slidably disposed in the mounting cavity (321), and the positioning column (330) is slidably matched with the mounting platform (340); An elastic member (350) is disposed between the positioning column (330) and the mounting platform (340), and the elastic member (350) has an elastic tendency to drive the positioning column (330) to slide in a direction away from the mounting platform (340).

2. The floating positioning mechanism according to claim 1, characterized in that: The mounting portion (310) comprises a first portion (311) and a second portion (312) which are arranged at an angle, the first portion (311) extending along the first direction, and the housing (320) is fixed to the first portion (311).

3. The floating positioning mechanism according to claim 2, characterized in that: The second part (312) comprises a first fixing part (3121), an adjustment sheet (3122) and a second fixing part (3123); the adjustment sheet (3122) is replaceably arranged between the first fixing part (3121) and the second fixing part (3123); the first part (311) and the first fixing part (3121) are an integral part and are arranged at an angle.

4. The floating positioning mechanism according to claim 3, characterized in that: The first fixing portion (3121) comprises a first side wall and a second side wall which are intersecting and adjacently arranged, and the adjustment sheet (3122) is provided between the second fixing portion (3123) and the first side wall, and between the second fixing portion (3123) and the second side wall.

5. The floating positioning mechanism according to claim 1, characterized in that: Also includes: A connecting member (360), wherein the connecting member (360) is fixedly connected to the positioning column (330), and the connecting member (360) is slidably connected to the mounting platform (340); A first limiting member (370) is disposed on the mounting platform (340), wherein the first limiting member (370) is adapted to abut against the connecting member (360) to limit the connecting member (360) from being separated from the mounting platform (340).

6. The floating positioning mechanism according to claim 5, characterized in that: The first limiting member (370) is provided with a first through hole (371), and the connecting member (360) is slidably inserted into the first through hole (371).

7. The floating positioning mechanism according to claim 5, characterized in that: The mounting cavity (321) comprises a first slide groove (3211) and a second slide groove (3212) extending along the first direction, the opening areas of the first slide groove (3211) and the second slide groove (3212) are different, the positioning column (330) is slidably matched with the first slide groove (3211), and the mounting platform (340) is slidably matched with the second slide groove (3212).

8. The floating positioning mechanism according to claim 7, characterized in that: The shell (320) is also provided with an avoidance groove (3213) connected to the second slide groove (3212), and when the side of the mounting platform (340) facing the first slide groove (3211) abuts against the inner wall of the second slide groove (3212), the first limiting member (370) is located in the avoidance groove (3213).

9. The floating positioning mechanism according to claim 7, characterized in that: The housing (320) is an integrally formed part, and the first slide groove (3211) and the second slide groove (3212) are connected to penetrate the housing (320).

10. The floating positioning mechanism according to claim 5, characterized in that: The elastic member (350) is sleeved on the connecting member (360), and two ends of the elastic member (350) are respectively abutted against the positioning column (330) and the first limiting member (370).

11. The floating positioning mechanism according to claim 1, characterized in that: In the first position, a portion of the positioning column (330) protruding from the housing (320) is provided with a positioning portion (331), and a cross section of the positioning portion (331) gradually decreases in a direction away from the mounting platform (340).

12. The floating positioning mechanism according to any one of claims 1 to 11, characterized in that: Also includes: A driving member is connected to the mounting platform (340), and is used to drive the mounting platform (340) to slide so as to drive the positioning column (330) to separate from the component.

13. A fixture, characterized in that: include: Base (200); According to the floating positioning mechanism according to any one of claims 1 to 12, the mounting portion (310) is fixed to the base (200).

14. A welding station, characterized in that: include: The fixture (2000) according to claim 13.

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