Edge covering device for vehicle door

Abstract

The utility model discloses an edging device for a car door, which comprises a sliding mechanism and a rotating mechanism, the rotating mechanism comprises a mounting plate, an air cylinder and an edging cutter block, the sliding mechanism drives the mounting plate to slide along the front-back direction of a base plate, and a cylinder body of the air cylinder is mounted below the mounting plate. A piston rod of the air cylinder vertically extends upwards to the position above the mounting plate and is connected with the edge covering cutter block through a connecting structure, the rear end of the connecting structure is rotationally connected with the piston rod of the air cylinder, the front end of the connecting structure is detachably connected with the edge covering cutter block, a bottom supporting plate is arranged at the bottom of the edge covering cutter block, and the two ends of the bottom supporting plate are rotationally mounted on the mounting plate through rotating shafts. The piston rod of the air cylinder stretches out and draws back to drive the edge covering cutter block to rotate around the axis of the rotating shaft. Compared with the prior art, the edge covering device has the advantages that the edge covering operation of the outer plates below the A, B and C columns of the hidden type water cutting is convenient and fast, and the edge covering quality can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of door hemming devices, and particularly relates to a hemming device for a door. Background Art

[0002] Generally, three types of equipment, namely a hemming machine, a press, and a special hemming machine, are used for hemming the white body of an automobile. For the hemming of the door water cut, generally a hemming machine is used to perform the hemming of the door water cut. However, for the hidden water cut of the door, due to the existence of the A, B, and C pillars of the door, the A, B, and C pillars will cause occlusion interference to the hemming operation at the hidden water cut, making it impossible for the roller to enter the hidden water cut for hemming operation; and because the hemming operation space at the hidden water cut is narrow, while general mechanical hemming devices require a relatively large hemming space to perform the hemming operation, therefore, general mechanical hemming devices are also difficult to achieve the hemming operation of the hidden water cut. Therefore, currently, the hemming operation is not performed at the hidden water cut under the A, B, and C pillars, resulting in a decrease in the anti-collision level of the A, B, and C pillars of the automobile and a reduction in the sealing effect at this place. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a hemming device for a door, so as to achieve convenient hemming operation for the outer plate under the A, B, and C pillars of the hidden water cut and ensure the hemming quality.

[0004] The utility model is realized through the following technical solutions:

[0005] A hemming device for a door includes a sliding mechanism and a rotating mechanism. The rotating mechanism includes a mounting plate, a cylinder, and a hemming blade block. The mounting plate is slidably mounted on the base plate, and the mounting plate is driven by the sliding mechanism to slide along the front and back directions of the base plate. The cylinder block of the cylinder is mounted below the mounting plate, and the piston rod of the cylinder extends vertically upward to the upper part of the mounting plate and is connected to the hemming blade block through a connecting structure. The rear end of the connecting structure is rotatably connected to the piston rod of the cylinder, and the front end of the connecting structure is detachably connected to the hemming blade block. The front end of the hemming blade block is provided with a hemming working part extending forward. A bottom support plate is provided at the bottom of the hemming blade block. Both ends of the bottom support plate are rotatably mounted on the mounting plate through a rotating shaft extending in the left and right directions. By the telescopic movement of the piston rod of the cylinder, the hemming blade block is driven to rotate around the axis of the rotating shaft.

[0006] As a preferred scheme of the above hemming device, the sliding mechanism includes an electric cylinder mounted on the base plate. The output shaft of the electric cylinder extends forward and is fixedly connected to the mounting plate of the rotating mechanism. By the forward and backward telescopic movement of the output shaft of the electric cylinder, the mounting plate is driven to slide back and forth.

[0007] As a preferred solution of the above-mentioned edge wrapping device, the connection structure includes a transfer block and a connecting rod fixedly connected front and back. The rear end of the connecting rod is rotatably connected to the piston rod of the cylinder. The left and right sides of the transfer block are respectively detachably connected with limit plates. A first gasket is arranged in the gap between each limit plate and the side wall of the transfer block. The front sections of the two limit plates respectively extend out of the front end of the transfer block to form clamping sections. The left and right sides of the edge wrapping blade block are clamped by the clamping sections of the two limit plates. The edge wrapping blade block is detachably connected to the transfer block and between the edge wrapping blade block and the bottom support plate respectively. A second gasket is arranged in the gap between the rear end of the edge wrapping blade block and the transfer block, and a third gasket is arranged in the gap between the bottom end of the edge wrapping blade block and the bottom support plate.

[0008] As a preferred solution of the above-mentioned edge wrapping device, the limit plate and the transfer block are connected by a first bolt extending in the left-right direction. The edge wrapping blade block and the transfer block are connected by a second bolt extending in the front-rear direction. The edge wrapping blade block and the bottom support plate are connected by a third bolt extending in the up-down direction.

[0009] As a preferred solution of the above-mentioned edge wrapping device, the left and right ends of the bottom support plate are provided with upwardly extending lug ears. Rotating shafts are respectively arranged on the outer sides of the two lug ears. Two mounting seats are arranged on the mounting plate. The two lug ears are respectively rotatably mounted on the two mounting seats through the two rotating shafts.

[0010] As a preferred solution of the above-mentioned edge wrapping device, a limit matching portion extending downward is arranged at the bottom of the connection structure. Front limit blocks and rear limit blocks arranged in the front-rear order are arranged on the mounting plate. By respectively blocking the limit matching portion with the front limit block and the rear limit block, the limit of the two extreme positions of the flipping stroke of the edge wrapping blade block is realized.

[0011] As a preferred solution of the above-mentioned edge wrapping device, two groups of sliders are arranged at the bottom of the mounting plate. Two slide rails are arranged on the substrate. The two groups of sliders at the bottom of the mounting plate are respectively in sliding fit with the two slide rails on the substrate.

[0012] As a preferred solution of the above-mentioned edge wrapping device, a limit block is arranged on the substrate at the position between the two slide rails. A limit groove matching with the limit block is formed on the mounting plate. By respectively resisting the front and rear ends of the limit block against the front and rear walls of the limit groove, the limit of the front-rear sliding stroke of the mounting plate is realized.

[0013] The utility model has the following advantages compared with the prior art:

[0014] A hemming device for a vehicle door provided by the present utility model drives a hemming tool block to rotate through a rotating mechanism and drives the hemming tool block to slide back and forth through a sliding mechanism, facilitating the hemming tool block to smoothly enter and exit a narrow space for hemming operations, achieving convenient operations for hemming the outer plates under the A, B, and C pillars of a hidden water cut, ensuring the hemming quality, guaranteeing the sealing effect of the hidden water cut, and enhancing the anti-collision strength of the A, B, and C pillars of the vehicle door. Moreover, the structure of the present utility model is simple and the cost is low. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 is a schematic diagram of the structure of the rotating mechanism of the present utility model.

[0017] Figure 3 is a schematic diagram of the structure of the rotating mechanism of the present utility model from another perspective.

[0018] Figure 4 is a schematic diagram of the structure of the sliding mechanism of the present utility model.

[0019] Figure 5 is a three-dimensional view of the working state of the present utility model.

[0020] Figure 6 is a plan view of the working state of the hemming tool block of the present utility model.

[0021] Reference numerals in the figures: 1 sliding mechanism; 2 rotating mechanism; 3 mounting plate; 4 cylinder; 5 hemming tool block; 6 base plate; 7 slider; 8 slide rail; 9 limit block; 10 limit groove; 11 electric cylinder; 12 hemming working part; 13 bottom support plate; 14 rotating shaft; 15 lug; 16 mounting seat; 17 limit matching part; 18 front limit block; 19 rear limit block; 20 adapter block; 21 connecting rod; 22 limit plate; 23 first gasket; 24 second gasket; 25 third gasket; 26 vehicle door; 27 die; 28 C pillar; 29 hidden water cut; 30 outer plate. Detailed Description of the Embodiment

[0022] The following provides a detailed description of the embodiments of the present utility model. These embodiments are implemented on the premise of the technical solution of the present utility model, and detailed implementation manners and specific operation processes are given. However, the protection scope of the present utility model is not limited to the following embodiments.

[0023] See Figures 1 to 6, this embodiment discloses a hemming device for a vehicle door, which includes a sliding mechanism 1 and a rotating mechanism 2. The rotating mechanism 2 includes a mounting plate 3, a cylinder 4, and a hemming blade block 5. The mounting plate 3 is slidably mounted on a base plate 6. There are two sets of left and right sliders 7 at the bottom of the mounting plate 3, and two left and right slide rails 8 are provided on the base plate 6. The two sets of left and right sliders 7 at the bottom of the mounting plate 3 are respectively slidably engaged with the two slide rails 8 on the base plate 6. A limiting block 9 is provided on the base plate 6 at a position between the two slide rails 8, and a limiting groove 10 is formed on the mounting plate 3 and is matched with the limiting block 9. By the front and rear ends of the limiting block 9 respectively abutting against the front and rear walls of the limiting groove 10, the stroke of the forward and backward sliding of the mounting plate 3 is limited. The sliding mechanism 1 drives the mounting plate 3 to slide along the front and rear direction of the base plate 6. The sliding mechanism 1 includes an electric cylinder 11 mounted on the base plate 6. The output shaft of the electric cylinder 11 extends forward and is fixedly connected to the mounting plate 3 of the rotating mechanism 2. By the forward and backward telescoping of the output shaft of the electric cylinder 11, the mounting plate 3 is driven to slide forward and backward.

[0024] In the rotating mechanism 2, the cylinder body of the cylinder 4 is mounted below the mounting plate 3. The piston rod of the cylinder 4 extends vertically upward to the upper side of the mounting plate 3 and is connected to the hemming blade block 5 through a connecting structure. The rear end of the connecting structure is rotatably connected to the piston rod of the cylinder 4, and the front end of the connecting structure is detachably connected to the hemming blade block 5. The front end of the hemming blade block 5 is provided with a forward-extending hemming working part 12. A bottom support plate 13 is provided at the bottom of the hemming blade block 5. The two ends of the bottom support plate 13 are rotatably mounted on the mounting plate 3 through rotating shafts 14 extending in the left and right directions. Lugs 15 extending upward are provided at the left and right ends of the bottom support plate 13, and rotating shafts 14 are respectively provided on the outer sides of the two lugs 15. Two mounting seats 16 are provided on the mounting plate 3, and the two lugs 15 are respectively rotatably mounted on the two mounting seats 16 through the two rotating shafts 14. By the telescoping of the piston rod of the cylinder 4, the hemming blade block 5 is driven to rotate around the axis of the rotating shaft 14.

[0025] A downwardly extending limit fitting portion 17 is provided at the bottom of the connecting structure, and a front limit block 18 and a rear limit block 19 arranged in front and back are provided on the mounting plate 3. The front limit block 18 and the rear limit block 19 are respectively blocked by the limit fitting portion 17 to limit the two extreme positions of the flipping stroke of the edging knife block 5. The connecting structure includes an adapter block 20 and a connecting rod 21 that are fixedly connected front and back, and the rear end of the connecting rod 21 is rotatably connected to the piston rod of the cylinder 4. The left and right sides of the adapter block 20 are respectively detachably connected with the limiting plates 22, and a first gasket 23 is provided in the gap between each limiting plate 22 and the side wall of the adapter block 20. The front sections of the two limiting plates 22 respectively extend out of the front end of the adapter block 20 to form a clamping section, and the left and right sides of the edging knife block 5 are clamped by the clamping sections of the two limiting plates 22. The edging knife block 5 and the adapter block 20 are detachably connected, and the edging knife block 5 and the bottom support plate 13 are respectively detachably connected. A second gasket 24 is provided in the gap between the rear end of the edging knife block 5 and the adapter block 20, and a third gasket 25 is provided in the gap between the bottom end of the edging knife block 5 and the bottom support plate 13. The limiting plate 22 is connected to the adapter block 20 by a first bolt extending in the left-right direction, the edge-wrapping block 5 is connected to the adapter block 20 by a second bolt extending in the front-back direction, and the edge-wrapping block 5 is connected to the bottom support plate 13 by a third bolt extending in the top-bottom direction. The installation position of the edge-wrapping block 5 can be adjusted in the left-right direction, the front-back direction, or the top-bottom direction by loosening the first bolt, the second bolt, or the third bolt, and increasing or decreasing the number of the first gasket 23, the second gasket 24, or the third gasket 25, thereby ensuring that the edge-wrapping block 5 is in the accurate edge-wrapping position and the edge-wrapping quality is guaranteed.

[0026] The working process of the hemming device provided in this embodiment is as follows:

[0027] Place the vehicle door 26 to be hemmed on the die 27, and place the hemming device on one side of the die 27, so that the hemming working part 12 at the front end of the hemming cutter block 5 faces the hidden water cut 29 below the C-pillar 28 of the vehicle door 26. Start the electric cylinder 11, the output shaft of the electric cylinder 11 extends forward, drives the mounting plate 3 to move forward, and the mounting plate 3 drives the hemming cutter block 5 thereon to move forward, so that the hemming working part 12 at the front end of the hemming cutter block 5 moves forward into the space of the hidden water cut 29 below the C-pillar 28. Control the piston rod of the air cylinder 4 to extend, drive the hemming cutter block 5 to rotate downward and close around the axis of the rotating shaft 14 until the limit matching part 17 at the bottom of the connecting structure contacts the front limit block 18. At this time, the hemming cutter block 5 is in the hemming waiting position. Then control the output shaft of the electric cylinder 11 to retract backward, drive the mounting plate 3 to move backward, and the mounting plate 3 drives the hemming cutter block 5 thereon to move backward together. During this process, the hemming cutter block 5 gradually contacts and presses down the flange of the outer panel 30 to realize the hemming action of the flange of the outer panel 30. When the output shaft of the electric cylinder 11 retracts backward to the end position and holds the pressure for 1 second, the output shaft of the electric cylinder 11 extends forward again, drives the mounting plate 3 to move forward, and the mounting plate 3 drives the hemming cutter block 5 to move forward together back to the hemming waiting position. Then control the piston rod of the air cylinder 4 to retract, drive the hemming cutter block 5 to rotate upward and open around the axis of the rotating shaft 14 until the limit matching part 17 at the bottom of the connecting structure contacts the rear limit block 19. The output shaft of the electric cylinder 11 retracts backward again, drives the mounting plate 3 and the components mounted thereon to return to the starting position, and the hemming is completed.

[0028] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An edge wrapping device for a vehicle door, characterized in that: It includes a sliding mechanism and a rotating mechanism. The rotating mechanism includes a mounting plate, a cylinder, and a hemming blade block. The mounting plate is slidably mounted on the substrate, and the sliding mechanism drives the mounting plate to slide along the front-back direction of the substrate. The cylinder block of the cylinder is mounted below the mounting plate, and the piston rod of the cylinder extends vertically upward to above the mounting plate and is connected to the hemming blade block through a connection structure. The rear end of the connection structure is rotatably connected to the piston rod of the cylinder, and the front end of the connection structure is detachably connected to the hemming blade block. The front end of the hemming blade block is provided with a hemming working part extending forward. A bottom support plate is provided at the bottom of the hemming blade block. Both ends of the bottom support plate are rotatably mounted on the mounting plate through rotating shafts extending in the left-right direction. By the telescopic movement of the piston rod of the cylinder, the hemming blade block is driven to rotate around the axis of the rotating shaft.

2. The hemming device for a vehicle door according to claim 1, characterized in that: The sliding mechanism includes an electric cylinder mounted on the substrate. The output shaft of the electric cylinder extends forward and is fixedly connected to the mounting plate of the rotating mechanism. By the forward and backward telescopic movement of the output shaft of the electric cylinder, the mounting plate is driven to slide forward and backward.

3. The hemming device for a vehicle door according to claim 1, characterized in that: The connection structure includes a transfer block and a connecting rod fixedly connected front and back. The rear end of the connecting rod is rotatably connected to the piston rod of the cylinder. Limiting plates are respectively detachably connected to the left and right sides of the transfer block. A first gasket is provided in the gap between each limiting plate and the side wall of the transfer block. The front sections of the two limiting plates respectively extend out of the front end of the transfer block to form clamping sections. The left and right sides of the hemming blade block are clamped by the clamping sections of the two limiting plates. The hemming blade block is detachably connected to the transfer block and between the hemming blade block and the bottom support plate respectively. A second gasket is provided in the gap between the rear end of the hemming blade block and the transfer block, and a third gasket is provided in the gap between the bottom end of the hemming blade block and the bottom support plate.

4. The hemming device for a vehicle door according to claim 3, characterized in that: The limiting plate and the transfer block are connected by a first bolt extending in the left-right direction. The hemming blade block and the transfer block are connected by a second bolt extending in the front-back direction. The hemming blade block and the bottom support plate are connected by a third bolt extending in the up-down direction.

5. The hemming device for a vehicle door according to claim 4, wherein: The left and right ends of the bottom support plate are provided with upwardly extending lugs. Rotating shafts are respectively provided on the outer sides of the two lugs. Two mounting seats are provided on the mounting plate. The two lugs are respectively rotatably mounted on the two mounting seats through the two rotating shafts.

6. The hemming device for a vehicle door according to claim 1, characterized in that: The bottom of the connection structure is provided with a downwardly extending limiting and cooperating part. Front limiting blocks and rear limiting blocks arranged front and back are provided on the mounting plate. By respectively blocking the limiting and cooperating part with the front limiting block and the rear limiting block, the limiting of the two extreme positions of the flipping stroke of the hemming blade block is realized.

7. The hemming device for a vehicle door according to claim 1, characterized in that: Two groups of sliders are provided at the bottom of the mounting plate. Two slide rails are provided on the substrate. The two groups of sliders at the bottom of the mounting plate respectively slide in cooperation with the two slide rails on the substrate.

8. The hemming device for a vehicle door according to claim 7, wherein: A limiting block is provided on the substrate at the position between the two slide rails. A limiting groove cooperating with the limiting block is opened on the mounting plate. By respectively resisting the front and rear walls of the limiting groove with the front and rear ends of the limiting block, the limiting of the front-back sliding stroke of the mounting plate is realized.

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