CN219727857U - Suspension bushing and press-fitting device - Google Patents

Abstract

The utility model provides a suspension bushing and a press fitting device. The suspension bushing includes: the bushing body is provided with a connecting hole, and the suspension bushing is connected with the rear suspension bracket through the connecting hole; the lining outer tube is provided with a distinguishing mark which is used for distinguishing the performance of the lining outer tube. By applying the technical scheme of the utility model, the distinguishing mark for distinguishing the performance of the suspension bushing is arranged on the bushing outer tube, and when the suspension bushing is pressed, different suspension bushings can be distinguished according to the distinguishing mark on the bushing outer tube, so that the correct suspension bushing is selected for pressing, the problem of the pressing error caused by the fact that the suspension bushings with the same structure but different performances cannot be distinguished during pressing in the prior art is solved, the accurate pressing is ensured, the later reinstallation cost caused by the pressing error is further reduced, the pressing efficiency is improved, and the vehicle assembly efficiency is effectively improved.

Description

Suspension bushing and press-fitting device

Technical Field

The utility model relates to the technical field of vehicles, in particular to a suspension bushing and a press-fitting device.

Background

The powertrain rear suspension is often designed in the form of a bushing and press-fit into the subframe. At present, automobiles are developed in a platform mode, and one auxiliary frame can be matched with multiple automobile types or different power assembly configuration automobile types of the same automobile type. And for different power assemblies, the rear suspension is difficult to realize the universal structural performance. When the rear suspension bushings are identical in structure and different in performance and are pressed on the same auxiliary frame, the rear suspension bushings cannot be distinguished by the pressing clamps. The usual way is to spray part numbers on the suspension or mark with paint pens, and to distinguish between press-fitting by visual inspection by workers, which may lead to incorrect assembly due to human error.

Aiming at the technical problems that the suspension bushings with the same structure and different performances cannot be distinguished when in press fitting, and the press fitting errors are caused, no effective solution is proposed at present.

Disclosure of Invention

The utility model mainly aims to provide a suspension bushing and a press fitting device, which are used for solving the problem that the suspension bushings with the same structure but different performances cannot be distinguished to cause press fitting errors in the press fitting process in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a suspension bushing comprising: the bushing body is provided with a connecting hole, and the suspension bushing is connected with the rear suspension bracket through the connecting hole; the lining outer tube is provided with a distinguishing mark which is used for distinguishing the performance of the lining outer tube.

Further, at least one of the bushing outer tube and the bushing body is made of nylon glass fiber material.

Further, the distinguishing mark includes a coating layer coated on an outer surface of the liner outer tube.

Further, the distinguishing mark is integrally injection molded with the bushing outer tube.

According to another aspect of the present utility model, there is provided a press-fitting device for press-fitting the suspension bushing described above, the press-fitting device comprising: the working bench is provided with at least one press-fit station which is used for placing the auxiliary frame; the first bracket is connected with the working bench, the first bracket is provided with a press-fitting mechanism, the press-fitting mechanism at least comprises a press head and a driving mechanism, the press head is connected with the driving mechanism, the press head is used for placing the suspension bush, and the driving mechanism is used for driving the press head to move to a press-fitting station so as to press-fit the suspension bush into a mounting hole of the auxiliary frame; the second bracket is connected with the working bench, is arranged adjacent to the first bracket, and is provided with a detection mechanism for detecting a distinguishing mark of the suspension bushing; the control mechanism is connected with the working bench, the detection mechanism and the press fitting mechanism.

Further, the detection mechanism includes: a light source device for illuminating the suspension liner; the color sensor is arranged adjacent to the pressure head and is used for receiving light reflected by the suspension lining and identifying and analyzing the reflected light.

Further, the number of the suspension bushings is two, the press-fitting mechanism comprises two pressure heads, and the driving mechanism is movably arranged along the height direction of the working bench so as to adjust the distance between the two pressure heads and the mounting hole of the auxiliary frame.

Further, the number of the color sensors is two, and the color sensors are arranged in one-to-one correspondence with the pressure heads.

Further, the two color sensors are disposed with a distance in the height direction of the work bench.

Further, the press-fitting device further includes: the safety grating is connected with the working bench and is adjacently arranged with the detection mechanism.

By applying the technical scheme of the utility model, the distinguishing mark for distinguishing the performance of the suspension bushing is arranged on the bushing outer tube, and when the suspension bushing is pressed, different suspension bushings can be distinguished according to the distinguishing mark on the bushing outer tube, so that the correct suspension bushing is selected for pressing, the problem of the pressing error caused by the fact that the suspension bushings with the same structure but different performances cannot be distinguished during pressing in the prior art is solved, the accurate pressing is ensured, the later reinstallation cost caused by the pressing error is further reduced, the pressing efficiency is improved, and the vehicle assembly efficiency is effectively improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a suspension liner and powertrain assembly according to the present utility model;

FIG. 2 illustrates a schematic structural view of an embodiment of a suspension liner and rear suspension bracket assembly in accordance with the present utility model;

fig. 3 shows a schematic structural view of an embodiment of a press-fitting device according to the present utility model.

Wherein the above figures include the following reference numerals:

1. a suspension bushing; 3. an auxiliary frame; 4. a rear suspension bracket; 5. a connecting bolt; 6. a power assembly;

11. a bushing body; 110. a connection hole;

12. a bushing outer tube;

21. a work bench;

22. a press-fitting mechanism; 221. a pressure head; 222. a driving mechanism; 223. a servo motor; 224. a speed reducer; 225. a coupling; 226. a linear guide rail; 227. a ball screw; 228. a floating slide; 229. a cylinder;

23. a detection mechanism; 231. a color sensor;

24. a control mechanism; 241. a control panel; 242. a display;

25. a safety grating; 26. inserting plate; 27. an upper necking sleeve; 28. a lower necking sleeve; 29. a pressure sensor.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present utility model will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.

In order to explain the technical scheme of the utility model, the problem of press fitting of the suspension bush in the prior art is introduced as follows:

the powertrain rear suspension is often designed in the form of a bushing and press-fit into the subframe. At present, automobiles are developed in a platform mode, and one auxiliary frame can be matched with multiple automobile types or different power assembly configuration automobile types of the same automobile type. The rear suspension is difficult to be universal in structural performance for different power assemblies, that is, rear suspension bushings with different press-fit performance are generally required for different power assemblies. Because the rear suspension bushings are identical in structure but different in performance, when the suspension bushings are press-fitted to the same subframe, the rear suspension bushings cannot be distinguished by the press-fitting fixtures (because the rear suspension bushings are identical in structure and cannot be distinguished by hardware structural characteristics). The usual way is to spray part numbers on the suspension bushings or mark them with paint pens, and in the press-fitting process, the part numbers on the suspension bushing samples are usually identified manually for separate press-fitting, which is inefficient and prone to errors.

Aiming at the problem that the suspension bushings with the same structure and different performances are easy to identify errors during press fitting, no effective solution is proposed at present.

Referring to fig. 1-2, a suspension liner is provided according to an embodiment of the present utility model.

Specifically, the suspension bushing comprises a bushing body 11 and a bushing outer tube 12, wherein a connecting hole 110 is formed in the bushing body 11, and the suspension bushing is connected with the rear suspension bracket 4 through the connecting hole 110; the liner outer tube 12 is provided with a distinguishing mark for distinguishing the performance of the liner outer tube 12.

By applying the technical scheme of the embodiment, the distinguishing mark for distinguishing the performance of the suspension bush is arranged on the bush outer tube 12, and when the suspension bush is pressed, different suspension bushes can be distinguished according to the distinguishing mark on the bush outer tube 12, so that the correct suspension bush is selected for pressing, the problem of the pressing error caused by the fact that the suspension bushes with the same structure but different performances cannot be distinguished during pressing is solved, the accuracy of pressing is ensured, the later reinstallation cost caused by the pressing error is further reduced, the pressing efficiency is improved, and the vehicle assembly efficiency is effectively improved.

In particular, the distinguishing mark is used to distinguish the properties of the liner outer tube 12, wherein the properties of the liner outer tube 12 may include a variety of properties such as stiffness, hardness, strength, flexibility, and the like.

Further, at least one of the bushing outer tube 12 and the bushing body 11 is made of nylon glass fiber material. The nylon glass fiber material is adopted, the intensity of the bushing outer tube 12 is higher, the durability is better, and the service life of the suspension bushing is prolonged.

In the preferred embodiment of the present utility model, the bushing outer tube 12 is made of nylon glass fiber material, the bushing body 11 is made of metal material, and a rubber connection structure is arranged between the bushing outer tube 12 and the bushing body 11.

Preferably, the distinguishing mark comprises a coating layer coated on the outer surface of the liner outer tube 12.

The coating layer may cover the entire surface of the liner outer tube 12, or may cover only a part of the surface of the liner outer tube 12, and the coating layer may be of a single color, for example, the outer surface of the liner outer tube 12 is coated with red, yellow, blue, or the like, or the coating layer may be patterned, for example, with numerals, letters, geometric shapes, chinese characters, or the like. The coating material of the coating layer may be paint, jelly, toner, or the like.

Preferably, the distinguishing mark is integrally injection molded with the liner outer tube 12. This avoids increasing the wall thickness of the bushing outer tube 12, facilitating subsequent press fitting.

As shown in fig. 3, according to another embodiment of the present utility model, there is provided a press-fitting device for press-fitting the suspension bush described above.

Specifically, the press-fitting device comprises a working bench 21, a first bracket, a second bracket and a control mechanism 24, wherein at least one press-fitting station is arranged on the working bench 21 and is used for placing the auxiliary frame 3; the first bracket is connected with the workbench frame 21, the first bracket is provided with a press-fitting mechanism 22, the press-fitting mechanism 22 at least comprises a press head 221 and a driving mechanism 222, the press head 221 is connected with the driving mechanism 222, the press head 221 is used for placing the suspension bush 1, and the driving mechanism 222 is used for driving the press head 221 to move to a press-fitting station so as to press-fit the suspension bush 1 into a mounting hole of the auxiliary frame 3; the second bracket is connected with the workbench frame 21, is arranged adjacent to the first bracket, and is provided with a detection mechanism 23, and the detection mechanism 23 is used for detecting the distinguishing mark of the suspension bush 1; the control mechanism 24 is connected to the work bench 21, and the control mechanism 24 is connected to the detection mechanism 23 and the press-fitting mechanism 22.

By applying the press-fitting device of the embodiment, the detection mechanism 23 arranged on the press-fitting device can detect the distinguishing mark of the suspension bushing 1, so as to judge whether the current suspension bushing 1 is the suspension bushing 1 matched with the current auxiliary frame 3, and the control mechanism 24 is connected with the detection mechanism 23 and the press-fitting mechanism 22, so that the control mechanism 24 can receive the detection information of the detection mechanism 23 and control the press-fitting mechanism 22 to start or stop working according to the detection information of the detection mechanism 23. The press-fitting device in this embodiment can realize automatic detection, automatic judgment, and automatic control of the press-fitting process of the suspension bush 1.

According to actual needs, the press-fitting device may further include a display device, for example, the press-fitting device may further include a control panel 241 and a display 242, a worker may control the press-fitting device through the control panel 241, the display 242 may display detection information of the detection mechanism 23 and send out a detection result prompt, for example, when the detection display shows that the distinguishing mark of the suspension liner 1 is inconsistent with the preset distinguishing mark, the worker is reminded to replace the suspension liner 1.

In an exemplary embodiment of the present utility model, the driving mechanism 222 of the press-fitting mechanism 22 includes a servo motor 223, a speed reducer 224, a coupling 225, a linear guide 226, a ball screw 227, a floating slide 228, and a cylinder 229, and the first bracket is further provided with a plug board 26, an upper necking jacket 27, a lower necking jacket 28, and a pressure sensor 29.

Specifically, the detection mechanism 23 includes a light source device for illuminating the suspension bush 1 and a color sensor 231; the color sensor 231 is disposed adjacent to the ram 221, and the color sensor 231 is configured to receive light reflected by the suspension liner 1 and perform recognition analysis on the reflected light.

In an exemplary embodiment of the utility model, the light source device is an LED lamp, and the suspension bush 1 is illuminated by the light source device, so that the suspension bush 1 is ensured to be in the same illumination environment during each detection, and the deviation of detection results caused by different illumination environments is avoided. The color sensor 231 should be disposed at a position where it can receive the light reflected by the suspension liner 1.

Preferably, the suspension bush 1 is two, the press-fitting mechanism 22 includes two press heads 221, and the driving mechanism 222 is movably provided along the height direction of the work bench 21 to adjust the distance between the two press heads 221 and the mounting hole of the sub-frame 3. The two suspension bushes 1 which are required to be installed in the installation holes of the auxiliary frame 3 can be installed at the same time, so that the press-fit time is saved.

Further, the number of the color sensors 231 is two, and the color sensors 231 are provided in one-to-one correspondence with the indenters 221. Two color sensors 231 are provided to detect the suspension bushes 1 mounted on the two pressure heads 221, respectively, so that mutual interference during light reflection and reception can be avoided, and the accuracy of detection results can be ensured.

Preferably, two color sensors 231 are disposed with a distance in the height direction of the work bench 21. The arrangement can be convenient for detect two suspension bushes 1 placed at a distance along the height direction, and the accuracy of the detection result is ensured.

It should be noted that, the position of the color sensor 231 is adjusted according to the position of the suspension bush 1 in actual operation, and a special sensor position adjusting mechanism may be provided to facilitate the adjustment of the position of the color sensor 231.

Further, the press-fitting device further includes a safety grating 25, the safety grating 25 is connected to the table 21, and the safety grating 25 is disposed adjacent to the detection mechanism 23. The safety grating 25 can prevent the light from damaging the staff during the detection process.

The utility model also provides a preferred embodiment of the rear suspension bushing and the press-fitting device, wherein the color development of the rear suspension bushing is carried out from the design stage of the rear suspension, and the press-fitting device is additionally provided with the automatic verification of a color recognition system, so that the possibility of incorrect assembly caused by human factors is thoroughly eliminated.

Specifically, this embodiment is suitable for press-fitting work of pressing the rear suspension bushing into the subframe, as shown in fig. 1 and 2, the two suspension bushings 1 are respectively a rear suspension upper bushing and a rear suspension lower bushing, the mounting mode is that the rear suspension upper bushing and the rear suspension lower bushing are press-fitted into the mounting hole of the subframe 3 in an interference manner, then the rear suspension bracket 4 is inserted into a cavity formed by the rear suspension upper bushing and the rear suspension lower bushing, and is fastened and connected through a connecting bolt 5, and the other side of the rear suspension bracket 4 is rigidly connected with the powertrain 6 through a bolt. The auxiliary frame 3 is the same as the auxiliary frame 3 used by the platform vehicle type, the suspension vulcanization structure is the same, but the performance requirements of the rear suspension bush which is adapted to the power assemblies of different vehicle types are different, the performance requirements of the rear suspension bush refer to the different performance structures such as structural strength, hardness, flexibility, extensibility and the like, the rear suspension bush can realize the performance difference by allocating a rubber formula, but the appearance structure is difficult to distinguish, and in the assembly process, the assembly error can be completely prevented by adopting the following method:

the first step, one side of a bushing outer tube 12 of the rear suspension bushing is vulcanized with rubber to form a suspension, the other side of the bushing outer tube is in interference fit with a circular hole for assembling the auxiliary frame suspension, and certain supporting capacity is required to be provided, wherein the bushing outer tube 12 is made of nylon glass fiber material instead of traditional metal material, the nylon glass fiber material is preferably PA66+GF25, and the glass fiber material can be properly adjusted according to the interference;

secondly, endowing color definition to the rear suspension lining with the same structure and different performances, adding toner in a nylon glass fiber material, wherein the toner can be PA6 nylon particles, and the color is selected from NCS color system or other color systems, and taking NCS color system as an example, yellow S0575-G90Y, red S0575-Y90R and blue S0575-Y90B can be selected;

the process of making the nylon part (i.e., the liner outer tube 12) is summarized in the following two steps: firstly, preparing before injection molding, adding color master batch particles into nylon particles in a ratio of 100:4, uniformly stirring the two particles, putting the mixture into an oven at 80 ℃ for baking for 4 hours after uniformly stirring the mixture, removing the moisture of the particles, and then adding nylon particles into a charging barrel of an injection molding machine; then injection molding, after nylon particles are poured into a charging barrel, nylon automatically enters a charging cylinder, the charging cylinder heats and melts the nylon, then an injection port of the charging cylinder is aligned with a material port of a die, the melted nylon in the charging cylinder is injected into the die by adjusting the pressure of an injection molding machine, then pressure is maintained for molding, and then the die is opened after cooling.

And thirdly, adding a color sensor to the press-fitting machine (namely the press-fitting device). The color sensor has a high-intensity white LED (i.e., the aforementioned light source device) and modulates light in the target item, receives reflected light from the test object and analyzes the values and intensities of red, green, blue (R, G, B) components, and the press-fitting machine can recognize the color of the test object based on these information. Color numbers of pre-identified differently performing rear suspension bushings are stored in the color sensor (it should be understood that color numbers herein refer to corresponding RGB component values and component intensities). The color sensor transmits the identified color number to the press-fitting machine through an I/O signal and displays the color number on the touch screen. The press-fitting machine is provided with two color sensors which respectively identify the rear suspension upper bushing and the rear suspension lower bushing. Before the press fitting is started, the press fitting machine compares whether the color number fed back by the color sensor is consistent with the preset color number, and the consistent party can normally press fit. When the color numbers are not identical, the press-fitting machine does not perform press-fitting even if the press-fitting button is pressed.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the utility model, as generally described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the utility model.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A suspension liner, comprising:

the bushing comprises a bushing body (11), wherein a connecting hole (110) is formed in the bushing body (11), and the suspension bushing is connected with a rear suspension bracket (4) through the connecting hole (110);

-a liner outer tube (12), said liner outer tube (12) being provided with a distinguishing mark for distinguishing properties of said liner outer tube (12).

2. Suspension bushing according to claim 1, characterized in that at least one of the bushing outer tube (12) and the bushing body (11) is made of nylon glass fiber material.

3. Suspension bushing according to claim 1, characterized in that the distinguishing mark comprises a coating layer coated on the outer surface of the bushing outer tube (12).

4. Suspension bushing according to claim 1, characterized in that the distinguishing mark is injection molded integrally with the bushing outer tube (12).

5. A press-fit device for press-fitting the suspension bushing of any of claims 1-4, comprising:

the automatic lifting device comprises a working bench (21), wherein at least one press-fitting station is arranged on the working bench (21) and used for placing an auxiliary frame (3);

the device comprises a working bench (21), a first bracket, a pressing mechanism (22) and a driving mechanism (222), wherein the first bracket is connected with the working bench (21), the pressing mechanism (22) at least comprises a pressing head (221) and the driving mechanism (222), the pressing head (221) is connected with the driving mechanism (222), the pressing head (221) is used for placing the suspension bush, and the driving mechanism (222) is used for driving the pressing head (221) to move to the pressing station so as to press the suspension bush into a mounting hole of the auxiliary frame (3);

the second bracket is connected with the working bench (21), is arranged adjacent to the first bracket, and is provided with a detection mechanism (23), and the detection mechanism (23) is used for detecting the distinguishing mark of the suspension bush;

the control mechanism (24), the control mechanism (24) is connected with the working bench (21), and the control mechanism (24) is connected with the detection mechanism (23) and the press-fitting mechanism (22).

6. Press-fit device according to claim 5, characterized in that the detection means (23) comprise:

a light source device for illuminating the suspension liner;

and the color sensor (231) is arranged adjacent to the pressure head (221), and the color sensor (231) is used for receiving the light reflected by the suspension bush and identifying and analyzing the reflected light.

7. The press-fitting device according to claim 6, wherein the suspension bush is two, the press-fitting mechanism (22) includes two of the press heads (221), and the driving mechanism (222) is movably provided in the height direction of the work bench (21) to adjust the distance between the two press heads (221) and the mounting hole of the sub-frame (3).

8. The press-fitting device according to claim 7, wherein the number of the color sensors (231) is two, and the color sensors (231) are provided in one-to-one correspondence with the indenters (221).

9. Press-fit device according to claim 8, characterized in that two of the color sensors (231) are arranged with a distance in the height direction of the work bench (21).

10. The press-fit device of claim 5, further comprising:

and a safety grating (25), wherein the safety grating (25) is connected with the working bench (21), and the safety grating (25) is arranged adjacent to the detection mechanism (23).