Nut pressing and riveting device on automobile D column

Abstract

The utility model provides a nut press-riveting device on an automobile column D. The nut press-riveting device comprises a machine table which is provided with a column D feeding mechanism for automatically feeding a column D, a nut feeding mechanism for automatically feeding a nut and a press-riveting mechanism for press-riveting the nut to the column D, the D column feeding mechanism comprises a material carrying assembly, a first transverse moving module driving the material carrying assembly to move in the X-axis direction and a second transverse moving module driving the first transverse moving module to move in the Y-axis direction. The nut feeding mechanism comprises a vibration disc, a straight material channel connected with the discharging end of the vibration disc and a feeding assembly connected with the discharging end of the straight material channel. The rivet pressing mechanism comprises a material receiving assembly and a rivet pressing assembly which are erected above the D column feeding mechanism through a supporting frame. By means of the mode, automatic feeding of the nuts and press riveting of the nuts into the two mounting holes of the D column are achieved, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a nut pressing and riveting device for automotive D-pillars. Background Technology

[0002] The D-pillars are located on either side of the rear windshield of a car, and their main function is to support and stabilize the vehicle's structure, providing safety for the driver and passengers. Figure 1 As shown, two mounting holes 51 are provided on the D-pillar 5. Nuts are press-fitted into the mounting holes 51, and are connected to other automotive support components through the nuts to support the D-pillar on the vehicle frame. Press-fitting refers to the process in which, under external pressure, the press-fitting component causes plastic deformation of the base material, forcing it into a pre-made groove specially designed in the rivet screw and nut structure, thereby achieving a reliable connection between the two parts.

[0003] In the existing technology, when riveting the nut to the mounting hole of the D-post, the D-post needs to be placed manually on the riveting equipment, and the nut needs to be placed in the mounting hole before the riveting machine is turned on to perform the riveting action. After the nut of one mounting hole is riveted, the position of the D-post needs to be adjusted manually before continuing the riveting action of the other mounting hole. This results in low overall work efficiency. The riveting position is controlled manually, making it difficult to ensure the final riveting accuracy. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a simple structure and an efficient tool for riveting nuts on the D-pillar of automobiles.

[0005] The main contents of this utility model include: a machine base, wherein the machine base is provided with an automatic D-column feeding mechanism, an automatic nut feeding mechanism, and a riveting mechanism for pressing the nuts onto the D-columns; the D-column feeding mechanism includes: a material loading component, a first transverse module that drives the material loading component to move along a first direction, and a second transverse module that drives the first transverse module to move along a second direction, the second direction being perpendicular to the first direction; the nut feeding mechanism includes a vibratory feeder, a straight material channel connected to the discharge end of the vibratory feeder, and a feeding component connected to the discharge end of the straight material channel; the riveting mechanism includes a receiving component and a riveting component mounted on the D-column feeding mechanism via a support frame, the receiving component receiving the nuts at the discharge end of the feeding component and transferring the nuts to below the action end of the riveting component, and the riveting component picking up the nuts from the receiving component and pressing the nuts onto the D-columns.

[0006] Preferably, the material loading assembly includes a material loading plate, on which a support member supporting the lower part of the D-pillar and a pressing member pressing on the upper part of the D-pillar are disposed. The support member includes a floating support part supporting the lower part of the D-pillar mounting hole and a fixed support column supporting the end of the D-pillar. The pressing member includes a tilting cylinder, the output end of which faces upward and is connected to the pressing plate.

[0007] Preferably, the floating support includes a support sleeve, the upper part of which has a vertically extending shaft hole, a retractable positioning post is provided in the shaft hole, a spring is connected between the bottom of the positioning post and the shaft hole, the upper part of the positioning post protrudes from the upper end of the support sleeve, and the positioning post can be inserted into the mounting hole of the D-post.

[0008] Preferably, the lower pressure plate has a clearance hole at the mounting hole corresponding to the D-pillar, and the lower pressure plate has a plurality of lower pressure positioning posts arranged circumferentially corresponding to the clearance hole.

[0009] Preferably, the feeding assembly includes a feeding bracket, on which a guide plate and a pusher are provided. A feeding channel is provided through the guide plate. An inlet connecting the straight material channel and the feeding channel is provided on one side of the feeding channel. The pusher is located at one end of the feeding channel. A push port is provided at the bottom of the end of the feeding channel away from the pusher.

[0010] Preferably, the pusher includes a pusher rod and a first transverse cylinder that drives the pusher rod to move along the feeding channel, and the feed inlet is located on the moving path of the pusher rod.

[0011] Preferably, the receiving assembly includes an extension bracket disposed on the support frame, a second transverse cylinder is disposed on the extension bracket, a first lifting cylinder is disposed at the output end of the second transverse cylinder, a receiving plate is connected to the output end of the first lifting cylinder, and a vertical receiving post is disposed on the upper surface of the receiving plate, the receiving post being inserted into the center hole of the nut.

[0012] Preferably, the riveting assembly includes a suction head for picking up nuts and a first lifting drive for driving the suction head to move up and down in a vertical direction.

[0013] Preferably, a detection camera is provided on one side of the support frame along the first direction or the second direction for locating the position of the D-pillar mounting hole placed on the material loading assembly.

[0014] The beneficial effects of this utility model are as follows: the D-pillar is fixed on the carrier plate, and the position of the carrier plate is changed by the interaction of the first and second transverse modules, so that the different mounting holes of the D-pillar are located below the output end of the riveting mechanism, realizing the pressing of nuts at different mounting holes. The switching of mounting hole positions is convenient, effectively improving work efficiency and riveting accuracy. The nuts are fed by the vibratory plate, and the nuts are pushed one by one to the push port by the push rod on the feeding component. The receiving component separates the nuts from the push port and transfers them to the riveting head of the riveting component, replacing manual material handling and placement, effectively improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the product's D-pillar;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of a preferred embodiment;

[0017] Figure 3 This is a three-dimensional structural diagram of the D-pillar feeding mechanism in a preferred embodiment;

[0018] Figure 4 This is a three-dimensional structural schematic diagram of the material-carrying assembly in a preferred embodiment;

[0019] Figure 5 This is a three-dimensional structural diagram of the nut feeding mechanism in a preferred embodiment;

[0020] Figure 6 This is a three-dimensional structural schematic diagram of the riveting mechanism in a preferred embodiment;

[0021] Figure 7 This is a three-dimensional structural diagram of the receiving component in a preferred embodiment;

[0022] Figure label:

[0023] 1. Machine base; 2. D-pillar feeding mechanism; 3. Nut feeding mechanism; 4. Riveting mechanism; 5. D-pillar;

[0024] 21. Material loading assembly; 211. Material loading plate; 212. Support component; 2121. Fixed support column; 2122. Support sleeve; 2123. Positioning insert; 213. Pressing component; 2131. Tilting cylinder; 2132. Pressing plate; 2133. Clearance hole; 2134. Pressing positioning column; 22. First transverse module; 23. Second transverse module;

[0025] 31. Vibratory feeder; 32. Straight material channel; 33. Feeding assembly; 331. Feeding bracket; 332. Guide plate; 3321. Feeding channel; 3322. Feed inlet; 3323. Pushing port; 333. Pushing component; 3331. First transverse cylinder; 3332. Push rod;

[0026] 41. Support frame; 42. Receiving assembly; 421. Receiving plate; 422. Receiving pin; 423. Second transverse cylinder; 424. First lifting cylinder; 43. Riveting assembly; 431. Suction head; 432. Riveting drive component; 44. Inspection camera;

[0027] 51. Mounting holes. Detailed Implementation

[0028] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 2 As shown, this application proposes a nut pressing and riveting device for a car D-pillar, which includes a machine base 1, a D-pillar feeding mechanism 2 for automatically feeding D-pillars, a nut feeding mechanism 3 for automatically feeding nuts, and a pressing and riveting mechanism 4 for pressing the nuts onto the D-pillar.

[0030] like Figure 2-3 As shown, the D-pillar loading mechanism 2 includes a loading assembly 21, a first transverse module 22 that drives the loading assembly 21 to move along a first direction, and a second transverse module 23 that drives the first transverse module 22 to move along a second direction. The second direction is perpendicular to the first direction. The first transverse module 22 and the second transverse module 23 work together to adjust the position of the loading assembly 21 so that the mounting hole of the D-pillar fixed on the loading assembly 21 corresponds to the lower end of the riveting mechanism 4 so as to perform the riveting operation.

[0031] like Figure 2-4As shown, the material loading assembly 21 includes a material loading plate 211, on which a support member 212 supporting the lower part of the D-pillar and a pressing member 213 pressing onto the upper part of the D-pillar are disposed. The support member 212 includes a floating support part supporting the lower part of the D-pillar mounting hole and a fixed support column 2121 supporting the end of the D-pillar. The floating support part includes a support sleeve 2122, the upper part of which has a vertically extending shaft hole. A retractable positioning pin 2123 is disposed in the shaft hole. A spring is disposed between the bottom of the positioning pin 2123 and the shaft hole. The upper part of the positioning pin 2123 protrudes from the upper end face of the support sleeve 2122. The positioning pin 2123 can be inserted into the mounting hole of the D-pillar. In this embodiment, two sets of floating support components are adaptively provided according to the number of mounting holes on the D-pillar. Corresponding support components are positioned below the two sets of mounting holes to ensure that the shape of the stress-bearing area of ​​the D-pillar remains unchanged. Fixed support columns 2121 are correspondingly positioned on both sides of the floating support components, providing support to both ends of the D-pillar to maintain the overall stability of the D-pillar during the riveting process. Preferably, the height of the fixed support columns 2121 can be adaptively set according to the bottom shape of the D-pillar to improve support stability. The pressing component includes a tilting cylinder 2131, the output end of which faces upward and is connected to a pressing plate 2132. The tilting cylinder 2131 actuates to drive the pressing plate 2132 to press onto the D-pillar. Preferably, the lower pressure plate 2132 has a clearance hole 2133 corresponding to the mounting hole of the D-pillar. The lower pressure plate 2132 is provided with a plurality of lower pressure positioning posts 2134 around the clearance hole 2133. When the lower pressure plate 2132 presses down on the D-pillar, the lower pressure positioning posts 2134 are pressed down around the mounting hole of the D-pillar to maintain the stability of the D-pillar in the riveting process. When the riveting mechanism 4 rivets the nut, the output end of the riveting mechanism 4 passes through the clearance hole 2133 to rivet, so as to improve the accuracy of the nut riveting position.

[0032] like Figure 2-4 As shown, preferably, in one embodiment, the carrier plate may have two sets of oppositely arranged limiting members and pressing members to be suitable for riveting the left and right sets of D-pillars, thus expanding the scope of application of this application.

[0033] like Figure 2 and 5As shown, the nut feeding mechanism 3 includes a vibratory feeder 31, a straight material channel 32 connected to the discharge end of the vibratory feeder 31, and a feeding assembly 33 connected to the discharge end of the straight material channel 32. A matching straight vibrator is provided below the straight material channel 32. The feeding assembly 33 includes a feeding bracket 331, on which a guide plate 332 and a pusher are provided. A feeding channel 3321 is provided through the guide plate 332. A feed inlet 3322 connecting the straight material channel 32 and the feeding channel 3321 is provided on one side of the feeding channel 3321. The pusher 333 is placed at one end of the feeding channel 3321, and a push port 3323 is provided at the bottom of the other end of the feeding channel 3321 away from the pusher 333. The pusher component 3333 includes a pusher rod 3332 and a first transverse cylinder 3331 that drives the pusher rod 3332 to move along the feeding channel 3321. The feed inlet 3322 is located on the moving path of the pusher rod 3332. Preferably, the feeding channel 3321 is configured as a T-shaped mechanism with the upper part open. The lower inner diameter of the feeding channel 3321 is smaller than the upper inner diameter, so that the upper part of the nut can be locked onto the upper part of the feeding channel 3321.

[0034] like Figure 2 and 5 As shown, the nuts stacked on the straight material channel 32 enter the feeding channel 3321 through the feed inlet 3322. The first transverse cylinder 3331 drives the push rod 3332 to move. The end of the push rod 3332 pushes the nuts to move along the feeding channel 3321 towards the push port 3323. After each nut is pushed, the push rod 3332 retracts and continues to push the next nut. The nuts behind push the nuts in front, so that the nuts gradually move to the push port 3323, realizing the discharge of a single nut.

[0035] like Figure 2-7As shown, the riveting mechanism 4 includes a receiving assembly 42 and a riveting assembly 43 mounted on the D-column feeding mechanism 2 via a support frame 41. The receiving assembly 42 includes an extension bracket mounted on the support frame 41, on which a second transverse cylinder 423 is mounted. A first lifting cylinder 424 is mounted at the output end of the second transverse cylinder 423, and a receiving plate 421 is mounted at the output end of the first lifting cylinder 424. A protruding receiving post 422 is mounted on the upper surface of the receiving plate 421, which can be inserted into the center hole of the nut. The receiving plate 421 passes through the feeding channel 3321 from bottom to top, pushing the nut upwards at the push port 3323 and transferring it below the riveting assembly 43. The riveting assembly 43 includes a riveting drive 432, whose output end faces downwards and is connected to a suction head 431. Preferably, the suction head 431 and the nut can be magnetically attracted or vacuum attracted. Preferably, the lower end face of the suction head has a downwardly protruding pressing post (not shown) at its center. The pressing post forms a suction groove around its circumference. The nut is correspondingly attracted and placed in the suction groove. When the suction head picks up the material from the receiving plate, the pressing post is inserted into the upper part of the center hole of the nut to ensure that the nut is accurately picked up into the suction head. When the suction head places the nut in the D-post mounting hole for riveting, the pressing post and the positioning post abut against each other. The pressing post presses the positioning post into the positioning sleeve to improve the accuracy of the nut riveting position.

[0036] like Figure 2-6 As shown, preferably, a detection camera 44 is provided on one side of the support frame 41 along the first or second direction. When the first transverse module 22 or the second transverse module 23 is activated, the D-pillar on the material carrier plate 211 is moved into the imaging range of the detection camera 44, and the position of the mounting hole on the D-pillar is located by coordinate positioning, so that the mounting hole to be riveted can be moved to the bottom of the suction head in the future, realizing automated material transfer and riveting, effectively improving work efficiency and riveting accuracy.

[0037] In this embodiment, the first transverse module and the second transverse module can be composed of components such as servo motors, lead screws and slide rails, and no specific restrictions are imposed here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A nut-pressing device for a car D-pillar, characterized in that, The utility model relates to a kind of automobile D column upper nut press riveting devices, including machine table, D column feeding mechanism of automatic feeding, nut feeding mechanism of automatic feeding nut, press riveting mechanism for riveting nut to D column, which is provided with on the machine table.

2. The automobile D column upper nut press riveting device according to claim 1, wherein the load-bearing assembly comprises a load-bearing plate, the load-bearing plate is provided with a support for supporting the lower part of the D column and a pressing member arranged above the D column, the support comprises a floating support part arranged below the mounting hole of the D column and a fixed support column arranged at the end of the D column, and the pressing member comprises a turnover air cylinder, the output end of the turnover air cylinder is upwardly connected with a pressing plate.

3. The automobile D column upper nut press riveting device according to claim 2, wherein the floating support part comprises a support sleeve, an axially extending shaft hole is formed in the upper part of the support sleeve, a telescopic positioning column is arranged in the shaft hole, a spring is connected between the bottom of the positioning column and the shaft hole, and the upper part of the positioning column protrudes from the upper end of the support sleeve, and the positioning column can be inserted into the mounting hole of the D column.

4. The automobile D column upper nut press riveting device according to claim 2, wherein the pressing plate is provided with a plurality of pressing positioning columns around the avoiding hole corresponding to the mounting hole of the D column.

5. The automobile D column upper nut press riveting device according to claim 1, wherein the feeding assembly comprises a feeding support, the feeding support is provided with a guide plate and a pushing member, the guide plate is provided with a feeding channel, one side of the feeding channel is provided with an inlet connected with the straight feeding channel and the feeding channel, the pushing member is arranged at one end of the feeding channel, and the bottom of the end of the feeding channel away from the pushing member is provided with a pushing port.

6. The automobile D column upper nut press riveting device according to claim 5, wherein the pushing member comprises a pushing rod and a first horizontal movement air cylinder for driving the pushing rod to move along the feeding channel, and the inlet is located on the moving path of the pushing rod.

7. The automobile D column upper nut press riveting device according to claim 1, wherein ​ ​ ​ ​ ​ ​ The receiving assembly comprises an extension support arranged on the support frame, a second horizontal movement air cylinder is arranged on the extension support, an output end of the second horizontal movement air cylinder is arranged with a first lifting air cylinder, an output end of the first lifting air cylinder is connected with a receiving plate, a vertical receiving inserting column is arranged on an upper end surface of the receiving plate, and the receiving inserting column can be correspondingly inserted into a center hole of the nut.

8. The nut press-in device for automobile D column according to claim 1, characterized in that, The press-in assembly comprises a suction head for sucking the nut and a first lifting driving member for driving the suction head to lift along the vertical direction.

9. The nut press-in device for automobile D column according to claim 1, characterized in that, A detection camera is arranged on one side of the support frame along the first direction or the second direction, and is used for positioning the position of the D column mounting hole on the receiving assembly.

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