A crimping butt welding automatic leveling device and leveling method

Abstract

The application discloses a kind of automatic leveling device and leveling method of crimping butt welding, including first mounting block and second mounting block, the center upper portion of first mounting block is equipped with self-aligning bearing, the outer ring of self-aligning bearing is equipped with ball center floating block, the ball center of self-aligning bearing upper portion is equipped with ball center pressure block, the side portion upper portion of ball center floating block is equipped with inner guide column, second mounting block is connected with first mounting block by first equal height screw, ball center floating block is connected with second mounting block by second equal height screw, the outside of first equal height screw and second equal height screw is respectively provided with first balance spring and second balance spring, the middle portion of second mounting block is equipped with linear guide sleeve, and inner guide column can slide inside linear guide sleeve.In the application, second balance spring provides balance force for linear guide sleeve and inner guide column;First balance spring provides balance force for the balance surface of self-aligning bearing, ball center pressure block and first mounting block, and automatic leveling is simply realized.

Description

Technical Field

[0001] This invention relates to the field of crimp welding technology, and particularly to an automatic leveling device and leveling method for crimp welding. Background Technology

[0002] Press welding is a commonly used welding method. It typically uses molds to directly fix and support the parts. The equipment and parts require high precision, and precise adjustments are needed during actual use to ensure the quality of the weld.

[0003] Therefore, it is becoming increasingly important to provide a device that automatically levels the force during the crimping process, reduces the precision requirements for the processing and assembly of equipment parts, reduces the workload of personnel in machine debugging, and provides a guarantee for automated production. Summary of the Invention

[0004] (a) Technical problems to be solved This invention can solve the problems of existing press welding, workpiece fixation for leveling, high requirements for the processing and assembly precision of equipment parts, and large workload for personnel to debug the machine.

[0005] (II) Technical Solution To achieve the above objectives, the present invention adopts the following technical solution: an automatic leveling device for press-welding, comprising a first mounting block and a second mounting block. A self-aligning bearing is mounted on the upper center of the first mounting block, a ball-center floating block is mounted on the outer ring of the self-aligning bearing, a ball-center pressing block is mounted at the upper ball center of the self-aligning bearing, and an inner guide post is mounted on the upper side of the ball-center floating block. The second mounting block is connected to the first mounting block via a first equal-height screw, and the ball-center floating block is connected to the second mounting block via a second equal-height screw. A first balance spring and a second balance spring are respectively provided on the outer sides of the first and second equal-height screws. The first balance spring is located between the first and second mounting blocks, and the second balance spring is located between the ball-center floating block and the second mounting block. A linear guide sleeve is mounted in the middle of the second mounting block, and the inner guide post can slide inside the linear guide sleeve. The second balance spring provides a balancing force for the linear guide sleeve and the inner guide post. The first balance spring provides a balancing force for the balance surface formed by the self-aligning bearing, the ball-center pressing block, and the first mounting block.

[0006] As a preferred embodiment of the present invention, the upper part of the first mounting block is provided with a first groove, and the side of the first mounting block is provided with a second groove to accommodate the first equal-height screw and the first balance spring.

[0007] As a preferred embodiment of the present invention, the ball center floating block includes an annular plate placed in the first groove, a bent portion disposed on the side of the annular plate, and an outer edge disposed on the upper side of the bent portion. The bent portion is sleeved on the outside of the outer ring of the self-aligning bearing, and the outer edge is installed on the upper part of the outer ring of the self-aligning bearing.

[0008] As a preferred embodiment of the present invention, the annular plate has a plurality of first connecting grooves in the middle for installing the second equalizing screw and the second balance spring, and the annular plate has a plurality of second connecting grooves in the middle for installing the inner guide post, with the plurality of first connecting grooves and second connecting grooves arranged alternately.

[0009] As a preferred embodiment of the present invention, a connecting rod that cooperates with the inner guide post is installed on the upper part of the second connecting groove.

[0010] As a preferred embodiment of the present invention, the elastic modulus of the first balance spring is smaller than that of the second balance spring.

[0011] As a preferred embodiment of the present invention, a third groove is provided in the middle of the second mounting block, a first through hole is provided at the corner of the second mounting block to cooperate with the first equalizing screw and the first balance spring, a second tube through hole is provided in the second mounting block to cooperate with the linear guide sleeve, and a fourth groove is provided at the lower part of the second mounting block to accommodate the second equalizing screw and the second balance spring.

[0012] As a preferred embodiment of the present invention, the first mounting block and the second mounting block are in a clearance fit when not subjected to pressure.

[0013] Secondly, the present invention also provides a leveling method for an automatic leveling device for press-welding, comprising the following steps: During the crimping and welding process, under the action of the crimping force, an inward reverse pressing force is generated between the first mounting block and the second mounting block; As the pressing force gradually increases, when there is a positional deviation in the pressing workpiece: the first balance spring with weaker elasticity is first compressed, and the spherical pair composed of the self-aligning bearing, the ball center pressure block and the first mounting block is first compressed. The first balance spring provides a balancing force to the balance surface to complete the self-alignment balance of the spherical pair in terms of angle. As the pressing force increases, the force is transmitted to the second balance spring and then to the linear pair composed of the linear guide sleeve and the inner guide post. The second balance spring is compressed and displaced, providing a wider pressure strain space for the spherical pair; When the internal forces of the structure are balanced, it reaches a self-leveling state and transmits the pressing force to the first mounting block to complete the leveling.

[0014] (III) Beneficial Effects 1. The automatic leveling device for press welding provided by the present invention, when the parts are not deviated, during the press welding operation, under the action of the press force, the second mounting block generates an inward reverse press force between the second mounting blocks, and adapts to the provided press force through the deformation of the first balance spring and the second balance spring. 2. The automatic leveling device for press welding provided by the present invention, when there is a positional deviation in the press-fitted workpiece, the first balance spring with weaker elasticity is compressed, and the spherical pair composed of the self-aligning bearing, the ball center pressure block and the first mounting block is compressed first. The first balance spring provides a balancing force for the balance surface, and completes the self-alignment balance of the spherical pair in terms of angle. As the pressing force increases and remains in a self-aligned state, the force is transmitted to the second balance spring and then to the linear pair composed of the linear guide sleeve and the inner guide post. The second balance spring is compressed and displaced, providing a wider pressure strain space for the spherical pair, which facilitates automatic leveling. Moreover, the two work together to provide a larger leveling range. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is an isometric schematic diagram of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is the invention Figure 2 Schematic diagram of the cross section at point AA; Figure 4 This is the invention Figure 2 Schematic diagram of the cross section at point BB; Figure 5 This is an isometric view of the lower part of the second mounting block of the present invention; Figure 6 This is a partial structural diagram of the first mounting block and the sphere-centered floating block of the present invention; Figure 7 This is a schematic diagram of the structure of the ball-center floating block, inner guide post, and second equal-height screw of the present invention. Figure 8 This is a partial structural schematic diagram of the floating block at the center of the sphere according to the present invention.

[0017] In the diagram: 1. First mounting block; 2. Second mounting block; 21. Third groove; 22. First through hole; 23. Second pipe through hole; 24. Fourth groove; 3. Self-aligning bearing; 4. Ball center floating block; 41. Annular plate; 42. Bending part; 43. Outer edge; 44. First connecting groove; 45. Second connecting groove; 46. Connecting rod; 5. Ball center pressure block; 6. Inner guide post; 7. First equalizing screw; 8. Second equalizing screw; 9. First balance spring; 10. Second balance spring; 11. Linear guide sleeve; 12. First groove; 13. Second groove.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be understood that the terms "longitudinal", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Example

[0024] like Figure 1-8 As shown, an automatic leveling device for press welding includes a first mounting block 1 and a second mounting block 2. A self-aligning bearing 3 is mounted on the upper center of the first mounting block 1. A ball-center floating block 4 is mounted on the outer ring of the self-aligning bearing 3. A ball-center pressing block 5 is mounted on the upper ball center of the self-aligning bearing 3. An inner guide post 6 is mounted on the upper side of the ball-center floating block 4. The second mounting block 2 is connected to the first mounting block 1 via the first equal-height screw 7, and the ball-centered floating block 4 is connected to the second mounting block 2 via the second equal-height screw 8. The outer sides of the first equal-height screw 7 and the second equal-height screw 8 are respectively provided with a first balance spring 9 and a second balance spring 10. The first balance spring 9 is located between the first mounting block 1 and the second mounting block 2, and the second balance spring 10 is located between the ball-centered floating block 4 and the second mounting block 2. A linear guide sleeve 11 is installed in the middle of the second mounting block 2, and the inner guide post 6 can slide inside the linear guide sleeve 11. The second balance spring 10 provides balancing force for the linear guide sleeve 11 and the inner guide post 6; The first balance spring 9 provides a balancing force to the balance surface composed of the self-aligning bearing 3, the ball center pressure block 5, and the first mounting block 1. In order to adjust the order of deformation, the elastic modulus of the first balance spring 9 is less than that of the second balance spring 10. The specific difference in elastic modulus can be calculated and determined according to the specific usage requirements.

[0025] It should be understood that multiple first equal-height screws 7, second equal-height screws 8, first balance springs 9, second balance springs 10, linear guide sleeves 11, and inner guide posts 6 are provided.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6To facilitate the connection between the first mounting block 1 and the second mounting block 2, and to facilitate the installation of various components, a first groove 12 is provided on the upper part of the first mounting block 1, and a second groove 13 is provided on the side of the first mounting block 1 to accommodate the first equal-height screw 7 and the first balance spring 9; a third groove 21 is provided in the middle of the second mounting block 2, which forms a space to accommodate the ball-shaped pressure block 5, and there is a certain distance between the second mounting block 2 and the ball-shaped pressure block 5. A first through hole 22 is provided at the corner of the second mounting block 2 to cooperate with the first equal-height screw 7 and the first balance spring 9. A second tube through hole 23 is provided on the second mounting block 2 to cooperate with the linear guide sleeve 11. A fourth groove 24 is provided at the lower part of the second mounting block 2 to accommodate the second equal-height screw 8 and the second balance spring 10; in order to achieve pressure bearing and movement, the first mounting block 1 and the second mounting block 2 are in a clearance fit when not under pressure.

[0027] Please see Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 The specific structure of the ball center floating block 4 is as follows: the ball center floating block 4 includes an annular plate 41 placed in the first groove 12, a bent portion 42 disposed on the side of the annular plate 41, and an outer edge 43 disposed on the upper side of the bent portion 42. The bent portion 42 is sleeved on the outside of the outer ring of the self-aligning bearing 3, and the outer edge 43 is installed on the upper part of the outer ring of the self-aligning bearing 3. The outer edge 43 is close to the ball center pressing block 5 and is located on the outside of the ball center pressing block 5.

[0028] In this embodiment, the annular plate 41 has a plurality of first connecting grooves 44 for installing the second equal-height screw 8 and the second balance spring 10 in the middle part, and a plurality of second connecting grooves 45 for installing the inner guide post 6 in the middle part. The plurality of first connecting grooves 44 and second connecting grooves 45 are arranged alternately, and a connecting rod 46 that cooperates with the inner guide post 6 is installed on the upper part of the second connecting groove 45. The connecting rod 46 makes it easier to install the inner guide post 6.

[0029] In practical use, the leveling method of the above-mentioned automatic leveling device for crimp welding includes the following steps: During the crimping and welding operation, under the action of the crimping force, an inward reverse pressing force is generated between the first mounting block 1 and the second mounting block 2; As the pressing force gradually increases, when there is a positional deviation in the pressing workpiece: the first balance spring 9 with weaker elasticity is first compressed, and the spherical pair composed of the self-aligning bearing 3, the ball center pressure block 5 and the first mounting block 1 is first compressed. The first balance spring 9 provides a balancing force to the balance surface to complete the self-alignment balance of the spherical pair in terms of angle. As the pressing force increases, the force is transmitted to the second balance spring 10 and then to the linear pair composed of the linear guide sleeve 11 and the inner guide post 6. The second balance spring 10 is compressed and displaced, providing a wider pressure strain space for the spherical pair; When the internal forces of the structure are balanced, it reaches a self-leveling state and transmits the pressing force to the first mounting block 1 to complete the leveling.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic leveling device for press welding, comprising a first mounting block (1) and a second mounting block (2), characterized in that: A self-aligning bearing (3) is installed at the upper center of the first mounting block (1), a ball center floating block (4) is installed on the outer ring of the self-aligning bearing (3), a ball center pressure block (5) is installed at the upper ball center of the self-aligning bearing (3), and an inner guide post (6) is installed on the upper side of the ball center floating block (4). The second mounting block (2) is connected to the first mounting block (1) by the first equal-height screw (7), and the ball-centered floating block (4) is connected to the second mounting block (2) by the second equal-height screw (8). The first equal-height screw (7) and the second equal-height screw (8) are respectively provided with a first balance spring (9) and a second balance spring (10). The first balance spring (9) is located between the first mounting block (1) and the second mounting block (2), and the second balance spring (10) is located between the ball-centered floating block (4) and the second mounting block (2). A linear guide sleeve (11) is installed in the middle of the second mounting block (2), and the inner guide post (6) can slide inside the linear guide sleeve (11). The second balance spring (10) provides balancing force for the linear guide sleeve (11) and the inner guide post (6); The first balance spring (9) provides a balancing force for the balance surface formed by the self-aligning bearing (3), the ball center pressure block (5) and the first mounting block (1).

2. The automatic leveling device for crimping and butt welding according to claim 1, characterized in that, The first mounting block (1) has a first groove (12) on its upper part and a second groove (13) on its side to accommodate the first equalizing screw (7) and the first balance spring (9).

3. The automatic leveling device for crimping and butt welding according to claim 2, characterized in that, The ball center floating block (4) includes an annular plate (41) placed in the first groove (12), a bent portion (42) disposed on the side of the annular plate (41), and an outer edge (43) disposed on the upper side of the bent portion (42). The bent portion (42) is sleeved on the outside of the outer ring of the self-aligning bearing (3), and the outer edge (43) is installed on the upper part of the outer ring of the self-aligning bearing (3).

4. The automatic leveling device for crimping and butt welding according to claim 3, characterized in that, The annular plate (41) has a plurality of first connecting grooves (44) for installing the second equalizing screw (8) and the second balance spring (10) in the middle part, and a plurality of second connecting grooves (45) for installing the inner guide post (6) in the middle part, with the plurality of first connecting grooves (44) and second connecting grooves (45) arranged alternately.

5. The automatic leveling device for crimping and butt welding according to claim 4, characterized in that, The upper part of the second connecting groove (45) is equipped with a connecting rod (46) that cooperates with the inner guide post (6).

6. The automatic leveling device for crimping and butt welding according to claim 1, characterized in that, The elastic modulus of the first balance spring (9) is less than that of the second balance spring (10).

7. The automatic leveling device for crimp welding according to claim 1, characterized in that, The second mounting block (2) has a third groove (21) in the middle, a first through hole (22) that cooperates with the first equalizing screw (7) and the first balance spring (9) at the corner of the second mounting block (2), a second through hole (23) that cooperates with the linear guide sleeve (11) is provided in the second mounting block (2), and a fourth groove (24) that accommodates the second equalizing screw (8) and the second balance spring (10) is provided in the lower part of the second mounting block (2).

8. The automatic leveling device for crimping and butt welding according to claim 1, characterized in that, The first mounting block (1) and the second mounting block (2) are in a clearance fit when not under pressure.

9. The automatic leveling device for crimping and butt welding according to claim 1, characterized in that, The leveling method of the above-mentioned automatic leveling device for crimp welding includes the following steps: During the press welding operation, under the action of the press force, an inward reverse press force is generated between the first mounting block (1) and the second mounting block (2); As the pressing force gradually increases, when there is a positional deviation in the pressing workpiece: firstly, the first balance spring (9) with weaker elasticity is compressed, and the spherical pair composed of the self-aligning bearing (3), the ball center pressure block (5) and the first mounting block (1) is compressed first. The first balance spring (9) provides a balancing force for the balance surface to complete the self-alignment balance of the spherical pair at the angle. As the pressing force increases, the force is transmitted to the second balance spring (10) and then to the linear pair consisting of the linear guide sleeve (11) and the inner guide post (6); The second balance spring (10) is compressed and displaced, providing a wider pressure strain space for the spherical pair; When the internal forces of the structure are balanced, it reaches a self-leveling state and transmits the pressing force to the first mounting block (1) to complete the leveling.

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