A connection device for a floating assembly and a method of using the same

Abstract

A connection device for a floating component, comprising an upper mold body and a lower mold body, wherein the upper mold body is connected to an upper mold body driving part, and the upper mold body can be driven by the upper mold body driving part to move up and down relative to the lower mold body, and is characterized in that: a positioning part capable of positioning a sheet metal part on the lower mold body and positioning a nut part in an inner cavity between wing plates of the sheet metal part is provided on the lower mold body, a driving mechanism capable of opening the positioning part so as to remove or load the sheet metal part and the nut part from the positioning part, a shaping part capable of being linked with the upper mold body to press the wing plate so that the sheet metal part loaded with the nut part is bent into a sheet metal box body, and a shaping part resetting mechanism capable of resetting the shaping part when the upper mold body is separated from the shaping part, and the driving mechanism and the upper mold body driving part are respectively connected to a switch and a power supply. The advantages of the present invention are: a non-rigid connection between a sheet metal part and a nut part is realized, and a floating component that meets the processing requirements is produced.

Description

Technical Field

[0001] The invention relates to the technical field of floating assembly manufacturing, and in particular to a connecting device of a floating assembly and a use method thereof. Background Art

[0002] There is a Chinese utility model patent with application number CN201120147506.7 and the name of "A cold punching die for riveted nuts", which discloses a cold punching die for riveted nuts, involving a riveting device, including a pressure block, a mandrel, a sleeve, a sliding bearing, a template, a motor, and a riveted nut. There is a rotating mechanism in the mold; the mandrel can both rotate and float. The utility model fundamentally solves the problems caused by the riveting gun at work. The working parts of the utility model are subjected to pressure rather than tension. It is well known that the axial compressive resistance of shaft parts is much greater than their tensile resistance. When the utility model is used, it is fixed on a punch press or hydraulic equipment, the riveting pressure is not limited, the position is fixed, and the operation is convenient, which is suitable for mass production and small and medium-sized parts processing. However, the device cannot be used for floating connection of two parts, so the structure of the device needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a connecting device of a floating assembly capable of floatingly connecting two parts together in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: the connecting device of the floating assembly comprises an upper mold body and a lower mold body, the upper mold body is connected to the upper mold body driving part, and the upper mold body can be driven by the upper mold body driving part to move up and down relative to the lower mold body, and is characterized in that: a positioning part is provided on the lower mold body, which can position the sheet metal part on the lower mold body and position the nut part in the inner cavity between the wing plates of the sheet metal part, a driving mechanism can open the positioning part so that the sheet metal part and the nut part can be taken out or loaded from the positioning part, a shaping part that can be linked with the upper mold body to press the wing plate so that the sheet metal part loaded with the nut part is bent into a sheet metal box body, and a shaping part resetting mechanism can reset the shaping part when the upper mold body is separated from the shaping part, and the driving mechanism and the upper mold body driving part are respectively connected to the switch and the power supply.

[0005] As an improvement, the positioning portion includes a movable seat capable of fixing the sheet metal part, a slide rail of the movable seat and a positioning seat capable of fixing the nut part. The movable seat is connected to the lower mold body via the slide rail so that it can move forward and backward. The driving mechanism is connected to the movable seat, and the driving mechanism can drive the movable seat to move forward and backward relative to the positioning seat.

[0006] Further improvement, the specific structure of the slide rail is that limiting platforms are respectively arranged on the left and right sides of the moving seat, a left limiting protrusion is arranged on the right side wall of the left limiting platform, a right limiting protrusion is arranged on the left side wall of the right limiting platform, and limiting grooves are respectively arranged on the side walls of the moving seat corresponding to the limiting platforms, the left limiting protrusion is connected to the left limiting groove, and the right limiting protrusion is connected to the right limiting groove.

[0007] As a further improvement, positioning pins capable of being inserted into corresponding positioning holes on the sheet metal part are distributed on the top surface of the movable seat.

[0008] Further improvement, the positioning seat includes a positioning core rod and a positioning frame, a positioning frame through hole is arranged on the positioning frame, the movable seat can be moved forward and backward through the positioning frame through hole, there are two positioning core rods, the two positioning core rods are arranged on the positioning frame at intervals, the thickness of the positioning core rods is the same as the height of the inner cavity of the sheet metal box body, and the spacing between the two positioning core rods is the same as the width of the nut piece.

[0009] As a further improvement, an end bevel is provided at the end of the positioning core rod to facilitate the insertion of the nut member.

[0010] As a further improvement, the driving mechanism is a driving cylinder or a driving oil cylinder, the cylinder body of the driving cylinder or the driving oil cylinder is fixed on a bracket on one side of the lower mold body, and the driving rod of the driving cylinder or the driving oil cylinder is connected to the moving seat.

[0011] Further improvement, the molding part includes a molding seat and a lower inclined wedge push block, and there are two molding seats and two lower inclined wedge push blocks. The two molding seats are respectively arranged on the left and right sides of the movable seat, and the two lower inclined wedge push blocks are respectively arranged on the corresponding molding seats and connected with the molding part resetting mechanism. An upper inclined wedge pressure block that can be linked with the corresponding lower inclined wedge push block is arranged on the upper mold body. When the upper mold body moves downward relative to the lower mold body, the upper inclined wedge pressure block pushes the corresponding lower inclined wedge push block to one side of the movable seat, and the lower inclined wedge push block flattens the corresponding wing plate of the sheet metal. When the upper mold body moves upward relative to the lower mold body, the molding part resetting mechanism resets the lower inclined wedge push block.

[0012] As a further improvement, the lower inclined wedge push block is in a horizontal L-shape, a push block made of wear-resistant alloy is arranged on the pressing surface of the lower inclined wedge push block; and a push block insert is arranged at the end of the push block.

[0013] The second technical problem to be solved by the present invention is to provide a method for using a connecting device of a floating assembly that can float and connect two parts together in response to the above-mentioned existing technical status.

[0014] The technical solution adopted by the present invention to solve the above technical problem is: a method for using the connection device of the floating assembly, characterized in that it comprises the following steps:

[0015] 1. The driving mechanism moves one end of the moving seat corresponding to the positioning pin to the outside of the positioning seat;

[0016] 2. Position the sheet metal part on the moving seat, and clamp and fix the nut part between the positioning core rods of the positioning seat;

[0017] 3. The driving mechanism returns the movable seat connected to the sheet metal part to the initial position, so that the positioning mandrel is inserted into the inner cavity of the sheet metal part and the nut part is located in the inner cavity between the wing plates of the sheet metal part;

[0018] Fourth, the upper mold body is driven to move downward relative to the lower mold body, so that the upper inclined wedge pressing block pushes the lower inclined wedge pushing block to move toward one side of the moving seat, and the lower inclined wedge pushing block flattens the corresponding wing plate of the sheet metal part to obtain a sheet metal box body with a floating connection to the nut part;

[0019] 5. The upper mold body moves upward, and the molding part reset mechanism resets the lower inclined wedge push block;

[0020] 6. The driving mechanism moves one end of the moving seat corresponding to the positioning pin to the outside of the positioning seat again, removes the sheet metal box from the moving seat, and completes the connection operation of the floating assembly.

[0021] Compared with the prior art, the advantages of the present invention are: realizing non-rigid connection between sheet metal parts and nut parts, and producing floating components that meet processing requirements; positioning the sheet metal parts and nut parts through the positioning part, so that the sheet metal parts and nut parts are in a rigid connection state during the connection process, avoiding misalignment during the processing process; the downward pressure of the upper mold body is converted into a horizontal thrust on the lower inclined wedge push block through the action of the inclined wedge surfaces of the upper inclined wedge pressure block and the lower inclined wedge push block, thereby realizing the flattening operation of the sheet metal wing plate, with high efficiency and good processing effect, and the surface of the sheet metal box body is smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of an embodiment of the present invention;

[0023] Figure 2 for Figure 1 The three-dimensional image after removing the upper mold body;

[0024] Figure 3 yes Figure 2 The middle is a three-dimensional diagram after the moving seat 7 is moved relative to the positioning seat;

[0025] Figure 4 yes Figure 3 The structural breakdown diagram of

[0026] Figure 5 yes Figure 1 A three-dimensional view of the upper middle mold body after it moves downward;

[0027] Figure 6 yes Figure 1 Front projection of

[0028] Figure 7 yes Figure 5 Front projection of . DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 7 As shown, the connection device of the floating assembly of this embodiment includes an upper mold body 1 and a lower mold body 2, the upper mold body 1 is connected to the upper mold body driving part, the upper mold body 1 can be driven by the upper mold body driving part to move up and down relative to the lower mold body 2, and the lower mold body 2 is provided with a positioning part that can position the sheet metal part 3 on the lower mold body 2 and position the nut part 4 in the inner cavity between the wing plates 31 of the sheet metal part 3, a driving mechanism 6 that can open the positioning part so that the sheet metal part 3 and the nut part 4 can be taken out or loaded from the positioning part, a shaping part 5 that can be linked with the upper mold body 1 and press the wing plates 31 to bend the sheet metal part 3 loaded with the nut part 4 into a sheet metal box body 30, and a shaping part resetting mechanism that can reset the shaping part 5 when the upper mold body 1 is separated from the shaping part 5, and the driving mechanism 6 and the upper mold body driving part are respectively connected to the switch and the power supply. The upper mold body driving part and the driving mechanism 6 can realize timed movement through the control module to improve production efficiency. The specific circuit structure of the control module belongs to the known technology, so it will not be described in detail.

[0031] The positioning part includes a moving seat 7 capable of fixing the sheet metal part 3, a slide rail of the moving seat 7 and a positioning seat 8 capable of fixing the nut part 4. The moving seat 7 is connected to the lower mold body 2 so as to be movable forward and backward via the slide rail. The driving mechanism 6 is connected to the moving seat 7, and the driving mechanism 6 can drive the moving seat 7 to move forward and backward relative to the positioning seat 8. The specific structure of the slide rail is that a limit platform is respectively arranged on the left and right sides of the moving seat 7, a left limit convex portion is arranged on the right side wall of the left limit platform 21, and a right limit convex portion is arranged on the left side wall of the right limit platform 22. A limit slide groove 71 is respectively arranged on the side wall of the moving seat 7 corresponding to the limit platform, the left limit convex portion is connected to the left limit slide groove, and the right limit convex portion is connected to the right limit slide groove. Positioning pins 72 that can be inserted into the corresponding positioning holes on the sheet metal part 3 are distributed on the top surface of the moving seat 7.

[0032] The positioning seat 8 includes a positioning core rod 81 and a positioning frame 82. The positioning frame 82 is provided with a positioning frame through hole. The movable seat 7 can be moved forward and backward through the positioning frame through hole. There are two positioning core rods 81. The two positioning core rods 81 are arranged on the positioning frame 82 at intervals. The thickness of the positioning core rod 81 is the same as the height of the inner cavity of the sheet metal box body 30. The spacing between the two positioning core rods 81 is the same as the width of the nut member 4. The end of the positioning core rod 81 is provided with an end inclined surface that can facilitate the insertion of the nut member 4.

[0033] The driving mechanism 6 is a driving cylinder or a driving oil cylinder, the cylinder body of which is fixed on a bracket on one side of the lower mold body 2 , and the driving rod of which is connected to the moving seat 7 .

[0034] The molding part 5 includes a molding seat 51 and a lower inclined wedge push block 52. There are two molding seats 51 and two lower inclined wedge push blocks 52. The two molding seats 51 are respectively arranged on the left and right sides of the movable seat 7. The two lower inclined wedge push blocks 52 are respectively arranged on the corresponding molding seats 51 and are connected with the molding part reset mechanism. An upper inclined wedge pressure block 11 which can be linked with the corresponding lower inclined wedge push block 52 is arranged on the upper mold body 1. The bottom of the upper inclined wedge pressure block 11 is provided with a pushing inclined surface, and the top of the lower inclined wedge push block 52 is provided with a corresponding top inclined surface. When the upper mold body 1 moves downward relative to the lower mold body 2, the upper inclined wedge pressure block 11 pushes the corresponding lower inclined wedge push block 52 to the side of the movable seat 7, and the lower inclined wedge push block 52 flattens the corresponding wing plate 31 of the sheet metal part 3. When the upper mold body 1 moves upward relative to the lower mold body 2, the molding part reset mechanism resets the lower inclined wedge push block 52. The lower inclined wedge push block 52 is in a horizontal L-shape, and a push block 521 made of a wear-resistant alloy is arranged on the pressing surface of the lower inclined wedge push block 52; and a push block insert 522 is arranged at the end of the push block 521. The pressing surface of the lower inclined wedge push block 52 can be flush with the top surface of the sheet metal box body 30, or it can be higher than the top surface of the sheet metal box body 30. When the height of the pressing surface of the lower inclined wedge push block 52 is higher than the top surface of the sheet metal box body 30, the bottom surface of the selected push block insert 522 is flush with the top surface of the sheet metal box body 30. The push block 521 and the push block insert 522 are selected to be wear-resistant and replaceable structures, and can be frictionally engaged with the lower inclined wedge push block 52, or can be bonded to the lower inclined wedge push block 52 by an adhesive. The distance between the two molding seats 51 can be exactly equal to the width of the sheet metal box body 30, so that the two molding seats 51 can not only support the corresponding lower inclined wedge push block 52, but also play the role of supporting the side wall of the sheet metal part 3, so that when the push block 52 of the lower inclined wedge push block 52 pushes the corresponding wing plate 31, the side wall of the molding seat 51 can touch the side wall of the sheet metal part 3 to keep the side wall of the sheet metal part 3 vertical, and further fix the sheet metal part 3, so that the sheet metal part 3 and the nut part 4 are temporarily rigidly connected. The molding part reset mechanism can use a reset spring. The specific structure and corresponding working principle of the molding part reset mechanism can be obtained by those skilled in the art using known technologies, so it will not be described in detail.

[0035] The method for using the connection device of the floating assembly of this embodiment includes the following steps:

[0036] 1. The driving mechanism 6 moves one end of the moving seat 7 corresponding to the positioning pin 72 to the outside of the positioning seat 8;

[0037] 2. Position the sheet metal part 3 on the movable seat 7, and clamp and fix the nut part 4 between the positioning core rods 81 of the positioning seat 8;

[0038] 3. The driving mechanism 6 retracts the movable seat 7 connected with the sheet metal part 3 to the initial position, so that the positioning mandrel 81 is inserted into the inner cavity of the sheet metal part 3 and the nut part 4 is located in the inner cavity between the wing plates 31 of the sheet metal part 3;

[0039] Fourth, drive the upper mold body 1 to move downward relative to the lower mold body 2, so that the upper inclined wedge pressing block 11 pushes the lower inclined wedge pushing block 52 to move toward the side of the moving seat 7, and the lower inclined wedge pushing block 52 flattens the corresponding wing plate 31 of the sheet metal part 3, so as to obtain the sheet metal box body 30 with the nut part 4 in a floating connection;

[0040] Fifth, the upper mold body 1 moves upward, and the molding part reset mechanism resets the lower inclined wedge push block 52;

[0041] 6. The driving mechanism 6 moves the end of the moving seat 7 corresponding to the positioning pin 72 to the outside of the positioning seat 8 again, and removes the sheet metal box body 30 from the moving seat 7, thereby completing the connection operation of the floating assembly.

[0042] Working principle: Place the sheet metal on the moving seat, position it with the positioning pin, and send the sheet metal to the working position through the action of the cylinder. At this time, the fixed positioning mandrel is inserted into the gap between the nut and the sheet metal, so that the molding seat, sheet metal, positioning mandrel, and nut are in rigid contact. During operation, the punch drives the upper inclined wedge pressure block, and the longitudinal force is converted into a lateral force through the inclined surface of the upper inclined wedge pressure block and the lower inclined wedge push block. The lower inclined wedge push block pushes the push block and the push block insert to bend the wing plate on the sheet metal into place, so that the sheet metal forms a sheet metal box body with the wing plate flattened, thereby connecting the sheet metal box body and the nut part together. When opening the mold, the lower inclined wedge push block is reset, and the cylinder drives the moving seat to the outside of the positioning seat. The positioning mandrel slides out of the sheet metal box body, and the nut part floats in any direction in the sheet metal box body. This device provides a new idea for riveting parts with non-rigid contact. After the floating component is connected, it ensures that the shape is not deformed and the position is of high precision.

Claims

1. A connection device for a floating assembly, comprising an upper mold body (1) and a lower mold body (2), wherein the upper mold body (1) is connected to an upper mold body driving unit, and the upper mold body (1) can be driven by the upper mold body driving unit to move up and down relative to the lower mold body (2), characterized in that: The lower mold body (2) is provided with a positioning portion capable of positioning the sheet metal part (3) on the lower mold body (2) and positioning the nut part (4) in the inner cavity between the wing plates (31) of the sheet metal part (3), a driving mechanism (6) capable of opening the positioning portion so that the sheet metal part (3) and the nut part (4) can be taken out of or loaded into the positioning portion, a shaping portion (5) capable of working in conjunction with the upper mold body (1) to press the wing plates (31) so that the sheet metal part (3) loaded with the nut part (4) is bent into a sheet metal box body (30), and a shaping portion resetting mechanism capable of resetting the shaping portion (5) when the upper mold body (1) is separated from the shaping portion (5), the driving mechanism (6) and the upper mold body driving portion are respectively connected to a switch and a power supply; the positioning portion includes a movable member capable of fixing the sheet metal part (3); The movable seat (7) is connected to the lower mold body (2) via the slide rail so as to be movable forward and backward. The driving mechanism (6) is connected to the movable seat (7) so as to be able to drive the movable seat (7) to move forward and backward relative to the positioning seat (8). The specific structure of the slide rail is as follows: a limit platform is respectively arranged on the left and right sides of the movable seat (7); a left limit convex part is arranged on the right side wall of the left limit platform (21); a right limit convex part is arranged on the left side wall of the right limit platform (22); and a limit slide groove (71) is respectively arranged on the side wall of the movable seat (7) corresponding to the limit platform, the left limit convex part is connected to the left limit slide groove, and the right limit convex part is connected to the right limit slide groove. The movable seat (7) is provided with a positioning pin (72) on the top surface thereof and can be inserted into a corresponding positioning hole on the sheet metal part (3); the positioning seat (8) includes a positioning core rod (81) and a positioning frame (82); a positioning frame through hole is provided on the positioning frame (82); the movable seat (7) can be inserted into the positioning frame through hole so as to move forward and backward; there are two positioning core rods (81), and the two positioning core rods (81) are arranged on the positioning frame (82) at intervals; the thickness of the positioning core rod (81) is the same as the height of the inner cavity of the sheet metal box body (30); the spacing between the two positioning core rods (81) is the same as the width of the nut part (4); the shaping part (5) includes a shaping seat (51) and a lower inclined wedge push block (52); the shaping seat (51) and the lower inclined wedge push block (52) are There are two wedge push blocks (52), two molding seats (51) are respectively arranged on the left and right sides of the moving seat (7), two lower inclined wedge push blocks (52) are respectively arranged on the corresponding molding seats (51) and are connected to the molding part reset mechanism, an upper inclined wedge pressure block (11) which can be linked with the corresponding lower inclined wedge push block (52) is arranged on the upper mold body (1), when the upper mold body (1) moves downward relative to the lower mold body (2), the upper inclined wedge pressure block (11) pushes the corresponding lower inclined wedge push block (52) to one side of the moving seat (7), and the lower inclined wedge push block (52) flattens the corresponding wing plate (31) of the sheet metal part (3), and when the upper mold body (1) moves upward relative to the lower mold body (2), the molding part reset mechanism resets the lower inclined wedge push block (52);The lower inclined wedge push block (52) is in a horizontal L-shape, and a push block (521) made of a wear-resistant alloy is arranged on the pressing surface of the lower inclined wedge push block (52); and a push block insert (522) is arranged at the end of the push block (521).

2. The connection device according to claim 1, characterized in that: An end bevel is provided at the end of the positioning core rod (81) to facilitate the insertion of the nut member (4).

3. The connection device according to claim 2, characterized in that: The driving mechanism (6) is a driving cylinder or a driving oil cylinder, the cylinder body of the driving cylinder or the driving oil cylinder is fixed on a bracket on one side of the lower mold body (2), and the driving rod of the driving cylinder or the driving oil cylinder is connected to the moving seat (7).

4. A method for using the connection device according to any one of claims 1 to 3, characterized in that: The following steps are included:

1. The driving mechanism (6) moves one end of the movable seat (7) corresponding to the positioning pin (72) to the outside of the positioning seat (8); 2. Position the sheet metal part (3) on the movable seat (7), and clamp the nut part (4) between the positioning core rods (81) of the positioning seat (8); 3. The driving mechanism (6) retracts the movable seat (7) connected to the sheet metal part (3) to the initial position, so that the positioning core rod (81) is inserted into the inner cavity of the sheet metal part (3) and the nut part (4) is located in the inner cavity between the wing plates (31) of the sheet metal part (3); Fourth, the upper mold body (1) is driven to move downward relative to the lower mold body (2), so that the upper inclined wedge pressing block (11) pushes the lower inclined wedge pushing block (52) to move toward the side of the movable seat (7), and the lower inclined wedge pushing block (52) flattens the corresponding wing plate (31) of the sheet metal part (3), thereby obtaining a sheet metal box body (30) with a nut part (4) in a floating connection; 5. The upper mold body (1) moves upward, and the molding part reset mechanism resets the lower inclined wedge push block (52); Sixth, the driving mechanism (6) moves one end of the movable seat (7) corresponding to the positioning pin (72) to the outside of the positioning seat (8) again, and removes the sheet metal box body (30) from the movable seat (7), thereby completing the connection operation of the floating assembly.

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