A front wall assembly positioning tool

Abstract

The application provides a front wall assembly positioning tool, which comprises a grabbing mechanism and a clamping mechanism. The grabbing mechanism comprises a grabbing component, a positioning component and a connecting piece. The grabbing component is used for grabbing a front wall assembly to be assembled and welded. The connecting piece is arranged at the middle part of the grabbing component and is used for connecting a robot. The positioning component is arranged at the outer edge of the grabbing component and is used for cooperating with the clamping mechanism to realize the positioning of the front wall assembly. The assembly surface of the clamping mechanism is arranged at an angle with the horizontal plane, so that the front wall assembly is placed in an inclined manner. The front wall assembly positioning tool provided by the application can release the welding channel after the front wall assembly is parked and positioned, so that the robot can be disconnected from the connecting piece. The efficiency of the assembly and welding of the front wall assembly and the cabin skeleton assembly is improved. The positioning requirement of different angles of the front wall assembly can be realized. The integral molding of the front wall can make the cabin have better sealing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular to a front panel assembly positioning tool. Background Art

[0002] With the development and application of industrial robots, quick-change tooling fixtures or mechanical grippers have emerged to adapt to the design of flexible automotive production lines. That is, robots adapt to the flexible switching of vehicle models by switching different tooling, reducing manufacturing costs and improving production efficiency.

[0003] In the existing technology, robots generally switch between grippers of different specifications through quick-change plates on the tool side and the robot side. However, in actual production, when in a tilted state, the robot needs its own load-bearing capacity to meet the positioning of parts by the grippers. That is to say, in the process of positioning the front panel assembly, positioning must rely on the robot. Not only is positioning difficult, but due to the large size of the robot, it will also take up too much welding space, affecting the subsequent welding efficiency and welding quality.

[0004] How to optimize the positioning tooling of the front panel assembly to reduce the dependence of the front panel assembly positioning on the robot itself and release more welding space is one of the important issues that need to be urgently addressed in this field. Summary of the Invention

[0005] Based on the above description, the present invention provides a front panel assembly positioning tool to solve the technical problem in the prior art that the positioning of the front panel assembly in a tilted state is too dependent on the robot itself.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] The present invention provides a front panel assembly positioning tool, comprising: a grabbing mechanism and a clamping mechanism;

[0008] The grabbing mechanism includes a grabbing component, a positioning component and a connecting piece;

[0009] The grabbing assembly is used to grab the front panel assembly to be welded and assembled;

[0010] The connecting piece is provided in the middle of the grabbing assembly, and the connecting piece is used to connect to the robot;

[0011] The positioning assembly is provided on the outer edge of the grabbing assembly, and the positioning assembly is used to cooperate with the clamping mechanism to achieve positioning of the front panel assembly;

[0012] Wherein, the assembly surface of the clamping mechanism is arranged at an angle to the horizontal plane so that the front panel assembly is placed at an angle.

[0013] On the basis of the above technical scheme, the application can be further improved as follows.

[0014] Further, the clamping mechanism comprises a base and a locking assembly.

[0015] The locking assembly is arranged on the base, and is adapted to the positioning assembly.

[0016] Further, the positioning assembly comprises a first positioning member, a second positioning member, a third positioning member and a fourth positioning member.

[0017] The first positioning member, the second positioning member, the third positioning member and the fourth positioning member are respectively arranged at four azimuth angles of the grabbing assembly.

[0018] Further, the locking assembly comprises a first locking member, a second locking member, a third locking member and a fourth locking member.

[0019] The first locking member is connected with the first positioning member, the second locking member is connected with the second positioning member, the third locking member is connected with the third positioning member, and the fourth locking member is connected with the fourth positioning member.

[0020] Further, the top of the first locking member and the top of the second locking member are arranged on a first horizontal plane.

[0021] The top of the third locking member and the top of the fourth locking member are arranged on a second horizontal plane.

[0022] The second horizontal plane is lower than the first horizontal plane, so that the assembly surface formed by the tops of the first locking member, the second locking member, the third locking member and the fourth locking member is an inclined surface.

[0023] Further, the inclination angle of the inclined surface is 45°.

[0024] Further, at least one of the first locking member, the second locking member, the third locking member and the fourth locking member is provided with a first limiting member.

[0025] At least one of the first positioning member, the second positioning member, the third positioning member and the fourth positioning member is provided with a second limiting member adapted to the first limiting member.

[0026] The first limiting member and the second limiting member can be adjusted in a first direction.

[0027] Further, the first limiting member is provided with a first chamfer in a second direction.

[0028] The second direction is perpendicular to the first direction.

[0029] Further, the second limiting piece is provided with a second angle cut along the second direction.

[0030] Further, the clamping mechanism further comprises a locking cylinder;

[0031] The locking cylinder is arranged on the base, and the locking cylinder is used for locking the locking assembly and the positioning assembly.

[0032] Compared with the prior art, the technical scheme has the following beneficial technical effects:

[0033] The front wall assembly positioning tool provided by the application comprises a grabbing mechanism and a clamping mechanism. The grabbing mechanism is composed of a grabbing assembly, a positioning assembly and a connecting piece. The robot is connected with the grabbing assembly through the connecting piece. The grabbing assembly can grab the front wall assembly to be welded and assembled. The robot can move the front wall assembly to the position where the clamping mechanism is located. After the positioning assembly is assembled with the clamping mechanism, the robot is disconnected from the connecting piece. The front wall assembly is stably positioned at the clamping mechanism under the action of the positioning assembly. Therefore, the positioning of the front wall assembly is realized. In order to adapt to the structural requirements of the assembly and welding of the front wall assembly and the nacelle framework assembly, the assembly surface of the clamping mechanism is arranged at an angle with the horizontal plane, so that the front wall assembly is placed at an angle. Compared with the prior art, the front wall assembly positioning tool provided by the application can disconnect the robot from the connecting piece after the front wall assembly is docked and positioned. Therefore, the welding channel is released, the problem of insufficient welding space caused by too many welding points is avoided, the efficiency of the assembly and welding of the front wall assembly and the nacelle framework assembly is improved, different angle positioning requirements of the front wall assembly can be realized, the front wall assembly does not need to be cut into two parts for step forming, the integral forming of the front wall assembly can make the nacelle have better sealing performance, not only the cost is saved, but also the assembly quality is improved. In addition, the assembly surface is wider and the structure is more stable, and the risk of rigid deformation of the grabbing mechanism caused by teaching precision of the robot is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The front wall assembly and the framework assembly are assembled according to the embodiment of the application.

[0035] Figure 2 The structure of the grabbing mechanism is shown in the structure diagram of the embodiment of the application.

[0036] Figure 3 The structure of the clamping mechanism is shown in the structure diagram of the embodiment of the application.

[0037] Figure 4 The positioning structure of the grabbing mechanism and the clamping mechanism is shown in the structure diagram of the embodiment of the application.

[0038] Figure 5 Fig. 1 is a schematic view of a cross section of the present application; Figure 4 Fig. 2 is a schematic view of a cross section of the present application;

[0039] In the drawings, the components represented by the reference numbers are listed as follows:

[0040] 1, grabbing mechanism; 11, grabbing assembly; 12, positioning assembly; 121, first positioning member; 1211, second limiting member; 1212, second cutting corner; 122, second positioning member; 123, third positioning member; 124, fourth positioning member; 13, connecting member;

[0041] 2, clamping mechanism; 21, base; 22, locking assembly; 221, first locking member; 2211, first limiting member; 2212, first cutting corner; 222, second locking member; 223, third locking member; 224, fourth locking member;

[0042] 3, front panel assembly;

[0043] 4, framework assembly;

[0044] A, first direction; B, second direction. DETAILED DESCRIPTION

[0045] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0046] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] It should be noted that the terms "first", "second", "third" and "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the specification, the description referring to the terms "specific example" or "some examples" and the like means 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 embodiments of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0049] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples, which are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0050] As shown in Figures 1 to 5 , the embodiment of the present application provides a front wall assembly 3 positioning tool, which comprises a grabbing mechanism 1 and a clamping mechanism 2.

[0051] The grabbing mechanism 1 comprises a grabbing assembly 11, a positioning assembly 12 and a connecting piece 13.

[0052] The grabbing assembly 11 is used to grab the front wall assembly 3 to be welded and assembled.

[0053] The connecting piece 13 is arranged at the middle part of the grabbing assembly 11, and the connecting piece 13 is used to connect the robot.

[0054] The positioning assembly 12 is arranged at the outer edge of the grabbing assembly 11, and the positioning assembly 12 is used to cooperate with the clamping mechanism 2 to realize the positioning of the front wall assembly 3.

[0055] Among them, the assembly surface of the clamping mechanism 2 is arranged at an angle with the horizontal plane, so that the front wall assembly 3 is placed at an angle.

[0056] Specifically, as shown in Figure 1 , the nacelle framework assembly 4 needs to be assembled and welded with the front wall assembly 3, and due to the influence of the nacelle structure, the integral front wall needs to be assembled at an angle of 45°. In the assembly process, as shown in Figure 2 , the connecting piece 13 is arranged on the grabbing mechanism 1, which can be the female head of the quick change disc, which can cooperate with the male head of the quick change disc on the side of the robot, and realize the functions of carrying, robot disengagement and switching by combining the grabbing function of the grabbing assembly 11.

[0057] In actual operation, the robot is connected with the grabbing assembly 11 through the connecting piece 13, the grabbing assembly 11 grabs the front panel assembly 3, and under the action of the robot, the grabbing assembly 11 moves to the clamping mechanism 2, and after moving to the specified position, the grabbing mechanism 1 is matched and positioned with the clamping mechanism 2, so that the positioning of the front panel assembly 3 is realized, and the front panel assembly 3 is ready for welding with the framework assembly 4, after the positioning is realized, the robot is separated from the connecting piece 13, and the welding channel is exited to leave more welding space, and the welding robots on both sides perform welding.

[0058] The front panel assembly 3 positioning tool provided by the embodiment of the application is provided with the grabbing mechanism 1 and the clamping mechanism 2, wherein the grabbing mechanism 1 is composed of the grabbing assembly 11, the positioning assembly 12 and the connecting piece 13, the robot is connected with the grabbing assembly 11 through the connecting piece 13, the grabbing assembly 11 can grab the front panel assembly 3 to be welded and assembled, the robot can move the front panel assembly 3 to the position where the clamping mechanism 2 is located, after the positioning assembly 12 is matched with the clamping mechanism 2, the robot is separated from the connecting piece 13, and the front panel assembly 3 is stably positioned at the clamping mechanism 2 under the action of the positioning assembly 12, so that the positioning of the front panel assembly 3 is realized, and in order to adapt to the structural requirements of the assembly and welding of the front panel assembly 3 and the nacelle framework assembly 4, the assembly surface of the clamping mechanism 2 is arranged at an angle with the horizontal plane, so that the front panel assembly 3 is placed obliquely.

[0059] Compared with the prior art, the front panel assembly 3 positioning tool provided by the embodiment of the application can be separated from the connecting piece 13 after the front panel assembly 3 is parked and positioned, so that the welding channel is released, the problem of insufficient welding space caused by too many welding points is avoided, and the efficiency of the assembly and welding of the front panel assembly 3 and the nacelle framework assembly 4 is improved.

[0060] Moreover, the positioning requirements of different angles of the front panel assembly 3 can be realized, and the front panel assembly 3 does not need to be cut into two parts to be formed step by step, the integral forming of the front panel can make the nacelle have better sealing performance, not only saving the cost, but also improving the assembly quality.

[0061] In addition, the assembly surface is wider and the structure is more stable, and the risk of rigid deformation of the grabbing mechanism 1 caused by teaching precision of the robot is avoided.

[0062] On the basis of the above embodiment, further, as shown in Figure 3 The clamping mechanism 2 includes a base 21 and a locking assembly 22.

[0063] The base 21 is horizontally arranged to provide support for the installation of the locking assembly 22, and the locking assembly 22 is vertically arranged on the base 21. The locking assembly 22 is used to match the positioning assembly 12 to realize the positioning of the front panel assembly 3.

[0064] On the basis of the above embodiment, further, as shown inFigure 2 As shown in the figure, the positioning assembly 12 comprises a first positioning member 121, a second positioning member 122, a third positioning member 123 and a fourth positioning member 124.

[0065] The first positioning member 121, the second positioning member 122, the third positioning member 123 and the fourth positioning member 124 are respectively arranged at four azimuth angles of the grabbing assembly 11.

[0066] In a specific example, the first positioning member 121 can be a main positioning circular hole with a diameter of φ25mm, the second positioning member 122 can be a supporting surface arranged along the assembly direction, the third positioning member 123 can be a secondary positioning elliptical hole with a diameter of φ25mm, and the fourth positioning member 124 can also be a supporting surface arranged along the assembly direction.

[0067] Correspondingly, as shown in the figure, the locking assembly 22 comprises a first locking member 221, a second locking member 222, a third locking member 223 and a fourth locking member 224. Figure 3

[0068] The first locking member 221 is connected with the first positioning member 121, the second locking member 222 is connected with the second positioning member 122, the third locking member 223 is connected with the third positioning member 123, and the fourth locking member 224 is connected with the fourth positioning member 124.

[0069] Corresponding to the above example, the first locking member 221 can be a main positioning pin with a diameter of φ24.9mm, the second locking member 222 can be a clamping surface arranged along the assembly direction, the third locking member 223 can be a secondary positioning pin with a diameter of φ24.9mm, and the fourth locking member 224 can also be a clamping surface arranged along the assembly direction. Here, it is only an example of the embodiment of the present application, and other arrangement modes of the locking member and the positioning member can also be used in the present application, and the specific structure of the two is not limited, as long as it can realize locking and positioning.

[0070] On the basis of the above embodiment, further, as shown in the figure, the top of the first locking member 221 and the top of the second locking member 222 are arranged on a first horizontal plane. Figure 3

[0071] The top of the third locking member 223 and the top of the fourth locking member 224 are arranged on a second horizontal plane.

[0072] Among them, the second horizontal plane is lower than the first horizontal plane, so that the assembly surface formed by the top of the first locking member 221, the second locking member 222, the third locking member 223 and the fourth locking member 224 is an inclined surface.

[0073] ​​In one of the embodiments of the present application, the inclination angle of the inclined surface is 45°. For example, for the LUNA H37 vehicle, the inclination angle of 45° is the most preferred angle. Of course, for other vehicles, the inclination angle can be adjusted adaptively.

[0074] Further, at least one of the first locking member 221, the second locking member 222, the third locking member 223, and the fourth locking member 224 is provided with a first limiting member 2211.

[0075] At least one of the first positioning member 121, the second positioning member 122, the third positioning member 123, and the fourth positioning member 124 is provided with a second limiting member 1211 matched with the first limiting member 2211.

[0076] The second limiting member 1211 can be adjusted in the first direction A.

[0077] Specifically, as shown in Figure 4 The first locking member 221 and the first positioning member 121 are provided with a limiting structure composed of the first limiting member 2211 and the second limiting member 1211. The purpose of setting the limiting structure is to enable the robot to easily disconnect from the connecting member 13 after the grabbing mechanism 1 is parked. It is necessary to eliminate the sinking and sliding problem of the grabbing mechanism 1 due to its own weight in the inclination angle direction. The setting of the limiting structure can effectively prevent the grabbing mechanism 1 from sliding downward due to gravity.

[0078] It should be noted that the first direction herein refers to the self-weight sliding direction of the grabbing mechanism 1, that is, when the grabbing mechanism 1 falls on the clamping mechanism 2, the second limiting member 1211 slides along the first direction A to the first limiting member 2211 under the action of the self-weight of the grabbing mechanism 1, and the first limiting member 2211 abuts against the second limiting member 1211 to prevent it from continuing to sink and slide. That is, the setting of the limiting member can realize the function of overcoming the self-weight of the grabbing mechanism 1 without affecting the assembly of the two.

[0079] In addition, the limiting structure can be provided on any one or any two or any three or all of the first locking member 221 and the first positioning member 121, the second locking member 222 and the second positioning member 122, the third locking member 223 and the third positioning member 123, and the fourth locking member 224 and the fourth positioning member 124. There are various setting modes, which can be selected according to actual needs. In order to ensure the assembly effect of the two and the convenience of the robot disconnection, it is preferred that the limiting structure is provided in the four groups of locking members and positioning members.

[0080] Further, as shown in Figure 5 The first limiting member 2211 is provided with a first chamfer 2212 in the second direction B.

[0081] The second direction is perpendicular to the first direction, and the second direction is the assembling direction of the grabbing mechanism 1 and the clamping mechanism 2.

[0082] Further, the second limiting piece 1211 is provided with a second chamfer 1212 in the second direction B.

[0083] Specifically, in order to make the assembling process more smooth without interference, as shown in Figure 5 The contact surfaces of the first limiting piece 2211 and the second limiting piece 1211 should be designed as small as possible, and in a specific example, the contact surfaces can only be 30mm long and 6mm wide, and the two are close to linear contact, which not only eliminates the influence of the downward sliding of the grabbing mechanism 1, but also does not affect the parking of the grabbing mechanism 1 in the inclined direction.

[0084] For the way to reduce the contact surfaces of the two, a chamfer can be provided on the first limiting piece 2211, or a chamfer can be provided on the second limiting piece 1211, or as shown in Figure 5 The chamfer is provided on both limiting pieces, and in consideration of the smallest contact surface, it is preferred that the chamfer is provided on both limiting pieces.

[0085] On the basis of the above-mentioned embodiments, further, in order to realize the stable positioning of the locking assembly 22 and the positioning assembly 12, so that the locking assembly 22 can clamp the positioning assembly 12, thereby ensuring the stability of the front wall assembly 3 during the welding process, the clamping mechanism 2 further comprises a locking cylinder, and the locking cylinder is arranged on the base 21. The locking cylinder is used to lock the locking assembly 22 and the positioning assembly 12.

[0086] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A front panel assembly positioning tool, characterized in that: include: Grasping mechanism and clamping mechanism; The grabbing mechanism includes a grabbing component, a positioning component and a connecting piece; The grabbing assembly is used to grab the front panel assembly to be welded and assembled; The connecting piece is provided in the middle of the grabbing assembly, and the connecting piece is used to connect to the robot; The positioning assembly is provided on the outer edge of the grabbing assembly, and the positioning assembly is used to cooperate with the clamping mechanism to achieve positioning of the front panel assembly; Wherein, the assembly surface of the clamping mechanism is arranged at an angle to the horizontal plane so that the front panel assembly is placed at an angle; The clamping mechanism includes a base and a locking assembly; the locking assembly is provided on the base, and the locking assembly is adapted to be adapted to the positioning assembly; The positioning assembly includes a first positioning member, a second positioning member, a third positioning member and a fourth positioning member; The first positioning member, the second positioning member, the third positioning member and the fourth positioning member are respectively provided at four azimuth angles of the grabbing assembly; The locking assembly includes a first locking member, a second locking member, a third locking member and a fourth locking member; The first locking member is connected to the first positioning member, the second locking member is connected to the second positioning member, the third locking member is connected to the third positioning member, and the fourth locking member is connected to the fourth positioning member; At least one of the first locking member, the second locking member, the third locking member, and the fourth locking member is provided with a first limiting member; at least one of the first positioning member, the second positioning member, the third positioning member, and the fourth positioning member is provided with a second limiting member adapted to the first limiting member; wherein the second limiting member is capable of sliding adjustment along the first direction; The first limiting member is provided with a first cut angle along a second direction; wherein the second direction is arranged perpendicular to the first direction.

2. The front panel assembly positioning tool according to claim 1, characterized in that: The top of the first locking member and the top of the second locking member are arranged on a first horizontal plane; The top of the third locking member and the top of the fourth locking member are arranged on the same second horizontal plane; The second horizontal plane is lower than the first horizontal plane, so that the assembly surface formed by the tops of the first locking member, the second locking member, the third locking member and the fourth locking member is an inclined surface.

3. The front panel assembly positioning tool according to claim 2, characterized in that: The inclination angle of the inclined surface is 45°.

4. The front panel assembly positioning tool according to claim 1, characterized in that: The second limiting member is provided with a second cut angle along the second direction.

5. The front panel assembly positioning tool according to claim 1, characterized in that: The clamping mechanism also includes a locking cylinder; The locking cylinder is arranged on the base, and is used to lock the locking assembly and the positioning assembly.

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