Automobile trunk cover plate nut press-fitting device

Abstract

The utility model relates to the field of nut press fitting, and discloses an automobile trunk cover plate nut press fitting device which comprises a rack, an air cylinder arranged on the rack, a pressing plate and a workbench, the air cylinder is arranged at the top end of the rack, the workbench is arranged at the bottom end of the rack, and the pressing plate is slidably connected to the rack and located between the air cylinder and the workbench. The piston end of the air cylinder is connected with the top end of the pressing plate; the rack is rotationally provided with a first transmission chain and a second transmission chain, a first connecting rod is connected between the pressing plate and the first transmission chain, a second connecting rod is connected between the moving frame and the second transmission chain, and the first transmission chain and the second transmission chain are in reverse linkage; the rack is provided with a nut box at the bottom end of the workbench, the second connecting rod is used for driving the movable frame to move between the workbench and the nut box, a magnet is arranged in the movable frame, and a groove for fixing a nut is formed in the upper surface of the movable frame. The automatic nut placing device has the effect of automatically placing the nuts.

Description

Technical Field

[0001] The utility model relates to the technical field of nut press-fitting, in particular to a nut press-fitting device for a trunk cover plate of an automobile. Background Art

[0002] The cover plate used to flatten the trunk of a car is used to separate the spare tire and tool layer at the bottom. There is a concave surface corresponding to the spare tire tool groove on the side of the cover plate that contacts the spare tire tool layer. Special nuts need to be pressed into the concave surface to reduce the movement of the spare tire and tools during driving.

[0003] In the prior art, a cylinder is generally used to press a pressure plate toward a workbench, a cover plate is placed on the workbench, and nuts are placed on the workbench. The nuts are quickly installed on the cover plate under the action of the cylinder driving the pressure plate. However, in the prior art, the nuts are placed on the workbench manually. However, due to the large area of ​​the workbench and the large number of nuts, manual placement of nuts is time-consuming and labor-intensive, and the work efficiency is low. Utility Model Content

[0004] The utility model aims to provide a nut pressing device for a trunk cover plate of an automobile, which has the effect of automatically placing the nut.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a nut pressing device for a car trunk cover, comprising a frame, a cylinder arranged on the frame, a pressure plate and a workbench, the cylinder being arranged at the top end of the frame, the workbench being arranged at the bottom end of the frame, the pressure plate being slidably connected to the frame and located between the cylinder and the workbench, the piston end of the cylinder being connected to the top end of the pressure plate, and the workbench being slidably connected to a movable frame up and down; the frame is rotatably provided with a first transmission chain and a second transmission chain, a first connecting rod is connected between the pressure plate and the first transmission chain, a second connecting rod is connected between the movable frame and the second transmission chain, and the first transmission chain and the second transmission chain are reversely linked; the frame is located at the bottom end of the workbench and a nut box is installed, the second connecting rod is used to drive the movable frame to move between the workbench and the nut box, a magnet is arranged inside the movable frame, and a groove for fixing the nut is arranged on the upper surface.

[0006] By adopting the above technical solution, by setting the second connecting rod, when the cylinder drives the pressure plate to press down, the pressure plate drives the first transmission chain to rotate, and the first transmission chain drives the second transmission chain to rotate in the opposite direction. Therefore, the second transmission chain drives the movable frame to move upward; a groove for fixing the nut is opened on the upper surface of the movable frame, and by setting a magnet, the nut is fixed in the groove of the movable frame, so that the purpose of automatically placing the nut when the pressure plate is pressed down can be achieved.

[0007] The utility model is further configured as follows: the frame is rotatably connected to a first rotating shaft, the first rotating shaft is coaxially provided with a first gear, and the first transmission chain is meshed and transmitted to the first gear.

[0008] By adopting the above technical solution, by setting the first gear, the first gear is meshed with the first transmission chain, and under the driving of the pressure plate, the purpose of keeping the first transmission chain and the first gear fixed can be achieved, and the purpose of preventing slippage can be achieved.

[0009] The utility model is further configured as follows: the frame is rotatably connected to a second rotating shaft, the second rotating shaft is coaxially provided with a second gear, and the second transmission chain is meshed and transmitted to the second gear.

[0010] By adopting the above technical solution and providing the second gear and the second transmission chain, it is possible to prevent the second transmission chain and the second gear from slipping during the movement of the moving frame.

[0011] The utility model is further configured as follows: a driving gear is coaxially arranged on the first rotating shaft, a driven gear is coaxially arranged on the second rotating shaft, and the driving gear is meshed with the driven gear.

[0012] By adopting the above technical solution, by providing a driving gear and a driven gear, the driving gear and the driven gear rotate in opposite directions at the same time, so that the purpose of reverse linkage between the first transmission chain and the second transmission chain can be achieved.

[0013] The utility model is further configured as follows: the diameter of the driving gear is smaller than the diameter of the driven gear.

[0014] By adopting the above technical solution, since the distance between the cylinder and the workbench is greater than the distance between the workbench and the nut box, in the same time, when the pressure plate moves from the cylinder to the workbench, the movable frame moves from the workbench to the nut box, and when the pressure plate moves from the workbench to the cylinder, the movable frame moves from the nut box to the workbench, the purpose of making the moving speed of the movable frame greater than the moving speed of the pressure plate can be achieved.

[0015] The utility model is further configured as follows: the frame is provided with a guide groove for the first connecting rod and the second connecting rod to slide.

[0016] By adopting the above technical solution, the purpose of sliding the first connecting rod and the second connecting rod on the frame can be achieved.

[0017] The utility model is further configured as follows: a connecting block is provided at the end of the second connecting rod close to the moving frame, the moving frame is rotatably connected to a third rotating shaft, and the third rotating shaft is rotatably connected to the connecting block.

[0018] The utility model is further configured as follows: the third rotating shaft is coaxially provided with a third gear, and the frame is provided with a rack meshing with the third gear at the nut box.

[0019] By adopting the above technical solution, by setting a rack and a connecting block, after the mobile frame moves to the inside of the nut box, the mobile frame rotates under the action of the third gear and the rack, and the nut placed in the wrong position is thrown off the mobile frame during the rotation. When the mobile frame continues to rotate and rises, the nut is fixed in the corresponding groove, thereby achieving the purpose of automatically fixing the nut position.

[0020] The utility model is further configured as follows: the nut box is provided with a notch for the third rotating shaft and the second connecting rod to slide.

[0021] By adopting the above technical solution, the purpose of the movable frame completely entering the nut box and rotating can be achieved.

[0022] The utility model is further configured as follows: the connecting block is connected to the bottom end of the workbench by a spring.

[0023] By adopting the above technical solution, when the connecting block drives the movable frame to move up and embed into the workbench, the spring between the movable block and the workbench is compressed, and the cover plate is squeezed at this time. The spring can achieve the purpose of buffering and softening the extrusion process.

[0024] The beneficial effects of the utility model are:

[0025] 1. The cylinder drives the pressing plate to move, and the pressing plate drives the first transmission chain to rotate. The first transmission chain and the second transmission chain are linked in reverse through gears, and the second transmission chain is linked with the moving frame to achieve the effect of simultaneous reverse movement of the pressing plate and the moving frame. The moving speed of the pressing plate and the moving frame is adjusted by the ratio between the driving gear and the driven gear.

[0026] 2. The movable frame moves up and down, and the movable frame rotates at the nut box through the third gear of the third rotating shaft and the rack at the nut box.

[0027] 3. A groove for fixing the nut is arranged on the upper surface of the movable frame, and a magnet is arranged thereon to achieve the effect of fixing the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0030] Figure 2 yes Figure 1 Schematic diagram of the local structure of the mobile rack.

[0031] Figure 3 It is an exploded view of the local structure of the driving wheel and the driven wheel of the utility model.

[0032] In the figure, 1, frame; 11, cylinder; 12, pressure plate; 121, first connecting rod; 13, workbench; 14, nut box; 141, notch; 15, guide groove; 16, rack; 2, moving frame; 21, second connecting rod; 211, connecting block; 212, spring; 22, groove; 23, third rotating shaft; 231, third gear; 3, first rotating shaft; 31, first gear; 32, first transmission chain; 33, driving gear; 4, second rotating shaft; 41, second gear; 42, second transmission chain; 43, driven gear. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Embodiment, a nut pressing device for a car trunk cover, such as Figure 1-Figure 3 As shown, the machine frame 1 includes a cylinder 11, a pressure plate 12 and a workbench 13 arranged in sequence on the upper, middle and lower parts of the machine frame 1. The pressure plate 12 is slidably connected between the cylinder 11 and the workbench 13. The piston end of the cylinder 11 is fixedly connected to the upper surface of the pressure plate 12. The workbench 13 is slidably connected to a plurality of movable frames 2. The upper surface of the movable frames 2 is provided with grooves 22 for fixing nuts. A magnet is arranged inside the movable frames 2. The bottom end of the movable frames 2 is arranged in a cone shape. The upper part of the machine frame 1 is rotatably connected to a first rotating shaft 3. The first rotating shaft 3 is coaxially provided with a first gear 31, and the first gear 31 is meshed with a first transmission chain 32 for transmission. A first connecting rod 121 is connected between the first transmission belt and the pressure plate 12. The lower part of the frame 1 is rotatably connected to the second rotating shaft 4, and the second rotating shaft 4 is coaxially provided with a second gear 41, and the second gear 41 is meshed with a second transmission chain 42 for transmission. A second connecting rod 21 is connected between the second transmission chain 42 and the movable frame 2. The frame 1 is provided with a guide groove 15 for the second connecting rod 21 and the first connecting rod 121 to slide.

[0035] Further, as shown in the figure, the first rotating shaft 3 is coaxially provided with a driving gear 33, the second rotating shaft 4 is coaxially provided with a driven gear 43, the driving gear 33 is meshed with the driven gear 43, the diameter of the driving gear 33 is smaller than the diameter of the driven gear 43, the frame 1 is located directly below the workbench 13 and is equipped with a nut box 14, the mobile frame 2 is rotatably connected to the third rotating shaft 23, the second connecting rod 21 is fixedly provided with a connecting block 211 at the end near the mobile frame 2, the third rotating shaft 23 is rotatably connected to the connecting block 211 and penetrates the connecting block 211, the third rotating shaft 23 is coaxially provided with a third gear 231, the frame 1 is provided with a rack 16 at the nut box 14, the rack 16 corresponds to the third gear 231, and a spring 212 is provided between the connecting block 211 and the workbench 13.

[0036] Its working principle is: when the cylinder 11 drives the pressure plate 12 to move upward, the pressure plate 12 drives the first transmission chain 32 to rotate in the positive direction. At this time, the active gear 33 drives the driven gear 43 to rotate in the opposite direction, and the second transmission chain 42 rotates in the opposite direction. The second transmission chain 42 drives the mobile frame 2 to move downward. When the mobile frame 2 moves to the nut box 14, the conical bottom at the bottom end of the mobile frame 2 allows the mobile frame 2 to smoothly enter the nut in the nut box 14. The third gear 231 is engaged with the rack 16. The mobile frame 2 rotates while moving downward, and the nuts that are unstable and incorrectly positioned are thrown off. The cylinder 11 drives the pressure plate 12 to press down. Similarly, the mobile frame 2 moves upward and rotates during the upward movement. The spring 212 is used to reduce vibration between the mobile frame 2 and the pressure plate 12.

Claims

1. A nut pressing device for a trunk cover of an automobile, comprising a frame (1), a cylinder (11) arranged on the frame (1), a pressing plate (12) and a workbench (13), characterized in that: The cylinder (11) is arranged at the top end of the frame (1), the workbench (13) is arranged at the bottom end of the frame (1), the pressing plate (12) is slidably connected to the frame (1) and is located between the cylinder (11) and the workbench (13), the piston end of the cylinder (11) is connected to the top end of the pressing plate (12), and the workbench (13) is slidably connected to the moving frame (2) up and down; the frame (1) is rotatably provided with a first transmission chain (32) and a second transmission chain (42), and the pressing plate (12) is connected to the first transmission chain (32). A first connecting rod (121) is connected, a second connecting rod (21) is connected between the movable frame (2) and the second transmission chain (42), and the first transmission chain (32) and the second transmission chain (42) are reversely linked; the frame (1) is located at the bottom end of the workbench (13) and is equipped with a nut box (14), the second connecting rod (21) is used to drive the movable frame (2) to move between the workbench (13) and the nut box (14), and the movable frame (2) is provided with a magnet inside and a groove (22) for fixing the nut on the upper surface.

2. The nut pressing device for a trunk cover of an automobile according to claim 1, characterized in that: The frame (1) is rotatably connected to a first rotating shaft (3), the first rotating shaft (3) is coaxially provided with a first gear (31), and the first transmission chain (32) is meshed and transmitted to the first gear (31).

3. The nut pressing device for a trunk cover of an automobile according to claim 2, characterized in that: The frame (1) is rotatably connected to a second rotating shaft (4), the second rotating shaft (4) is coaxially provided with a second gear (41), and the second transmission chain (42) is meshed and transmitted with the second gear (41).

4. The nut pressing device for a trunk cover of an automobile according to claim 3, characterized in that: The first rotating shaft (3) is coaxially provided with a driving gear (33), and the second rotating shaft (4) is coaxially provided with a driven gear (43), and the driving gear (33) is meshed with the driven gear (43).

5. The automobile trunk cover nut press-fitting device according to claim 4, characterized in that: The diameter of the driving gear (33) is smaller than the diameter of the driven gear (43).

6. The nut pressing device for a trunk cover of an automobile according to claim 5, characterized in that: The frame (1) is provided with a guide groove (15) for the first connecting rod (121) and the second connecting rod (21) to slide.

7. The automobile trunk cover nut press-fitting device according to claim 6, characterized in that: A connecting block (211) is provided at the end of the second connecting rod (21) close to the moving frame (2); the moving frame (2) is rotatably connected to a third rotating shaft (23); and the third rotating shaft (23) is rotatably connected to the connecting block (211).

8. The automobile trunk cover nut press-fitting device according to claim 7, characterized in that: The third rotating shaft (23) is coaxially provided with a third gear (231), and the frame (1) is provided with a rack (16) meshed with the third gear (231) at the nut box (14).

9. The automobile trunk cover nut press-fitting device according to claim 8, characterized in that: The nut box (14) is provided with a notch (141) for the third rotating shaft (23) and the second connecting rod (21) to slide.

10. The automobile trunk cover nut press-fitting device according to claim 9, characterized in that: The connection block (211) is connected to the bottom end of the workbench (13) via a spring (212).

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