Three-dimensional centering suspended bushing press fitting tool support

Abstract

The utility model relates to the field of press fitting of an auxiliary frame bushing of an automobile. A three-dimensional centering suspended bushing press fitting tool support comprises a supporting base, a movable positioning assembly and a limiting plate. The movable positioning assembly comprises a movable platform, the movable platform is movably connected with the supporting base through a three-dimensional sliding mechanism, a sleeve guide column used for positioning an auxiliary frame sleeve and an air cylinder are installed on the movable platform, and a telescopic rod of the air cylinder is connected with an inner core positioning column used for positioning an inner hole of the suspension lining. The center of the sleeve guide column is provided with a guide hole slidably connected with the inner core positioning column, and the top of the sleeve guide column is provided with a containing groove for containing the inner core positioning column in an inward shrinkage mode. A limiting plate is installed at the top of the supporting base, and a movable limiting hole used for limiting the sleeve guide column is formed in the center of the limiting plate. The auxiliary frame sleeve is positioned through the sleeve guide column, the suspension lining is positioned through the inner core positioning column, and therefore it is guaranteed that the auxiliary frame sleeve and the suspension lining are concentric.

Description

Technical Field

[0001] The utility model relates to the field of press-fitting of automotive subframe bushings, and specifically relates to a support. Background Art

[0002] As a part of the chassis system, the subframe is responsible for connecting the wheels and the vehicle body and bears the impact and vibration from the road surface. Integrating the mounts on the subframe can better integrate the chassis system and optimize the dynamic performance and NVH performance of the vehicle. This integrated design can reduce the number and complexity of components, reduce the weight of the whole vehicle, and improve the structural rigidity and stability of the whole vehicle.

[0003] The mount bushings are integrated in the subframe body. In order to achieve multi-point synchronous press-fitting, more complex press-fitting equipment needs to be designed; during multi-point synchronous press-fitting, the position and pressure of each mount point need to be accurately controlled. If the precision control is not in place, it may lead to uneven connection between the subframe and the vehicle body, affecting the performance and stability of the whole vehicle. Since the press-fitting of multiple mount points needs to be controlled simultaneously, the production efficiency may be affected to a certain extent.

[0004] Publication No. CN110695652A discloses a press-fitting machine for mount bushings and a control method. The fixed support described in this patent includes a base, a support rod detachably installed on the base and connected to the subframe, and a support column facing the bushing mounting hole. The positioning points of the bushing cannot move, and this patent cannot realize the adaptive adjustment of the positions of the subframe sleeves and bushings at different press-fitting locations during multi-point synchronous press-fitting. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the utility model provides a mount bushing press-fitting tooling support for three-dimensional centering to solve at least one of the above technical problems.

[0006] The technical solution of the utility model is: a mount bushing press-fitting tooling support for three-dimensional centering, characterized by comprising a support seat, a movable positioning assembly and a limiting plate;

[0007] The movable positioning assembly includes a movable platform movable in three dimensions of front-back, left-right and up-down. The movable platform is movably connected to the support seat through a three-dimensional sliding mechanism. A sleeve guiding column for positioning the subframe sleeve and a cylinder are installed on the movable platform. A core positioning column for positioning the inner hole of the mount bushing is connected to the telescopic rod of the cylinder;

[0008] A guiding hole for slidably connecting the core positioning column is opened in the center of the sleeve guiding column, and a receiving groove for receiving the retraction of the core positioning column is opened at the top of the sleeve guiding column;

[0009] The top of the support base is provided with the limit plate, and a movable limit hole for limiting the sleeve guide post is formed in the center of the limit plate.

[0010] The utility model realizes the positioning of the subframe sleeve through the sleeve guide post, and realizes the positioning of the mounting bush through the inner core positioning post, thereby ensuring the concentricity of the subframe sleeve and the mounting bush. The synchronous position adjustment of the inner core positioning post and the sleeve guide post is realized through the movable platform, and the position fine adjustment of different crimping points is satisfied when multiple mounting points are crimped together.

[0011] Further preferably, the bottom of the limit plate is provided with an outwardly extending mounting flange, and the mounting flange is detachably connected to the support base.

[0012] Further preferably, the top surface of the limit plate is a sliding support surface for slidingly supporting the end surface of the subframe sleeve.

[0013] Further preferably, the three-dimensional sliding mechanism includes a first sliding member for sliding along a first linear direction;

[0014] A first guide post for guiding the first sliding member to slide along the first linear sliding direction is formed on the support base, and a first spring sleeved around the first guide post is clamped between the first sliding member and the support base;

[0015] A second guide post with a guiding direction of a second linear direction is mounted on the first sliding member, the second guide post is slidably connected to a second sliding member, and a second spring sleeved on the second guide post is clamped between the second sliding member and the first sliding member;

[0016] A third guide post with a guiding direction of a third linear direction is mounted on the second sliding member, the third guide post is slidably connected to the movable platform, and a third spring sleeved on the third guide post is clamped between the movable platform and the second sliding member;

[0017] The first linear direction, the second linear direction, and the third linear direction are perpendicular to each other in pairs.

[0018] It is convenient to realize the movable platform to move in three dimensions of front-back, left-right, and up-down.

[0019] Further preferably, the movable platform is located above the second sliding member;

[0020] A relief hole for installing the cylinder is formed in the center of the second sliding member;

[0021] The lower part of the first sliding member abuts against the first spring.

[0022] Further preferably, two first sliding members are provided, and the two first sliding members are arranged left and right;

[0023] The two first sliding members are connected by the second guide posts arranged side by side front and back;

[0024] The second sliding member is located in the area between the two first sliding members. A second spring is clamped between the left side of the second sliding member and the first sliding member on the left side, and a second spring is clamped between the right side of the second sliding member and the first sliding member on the right side.

[0025] Further preferably, a front connecting plate is detachably connected to the front side of the second sliding member, and a rear connecting plate is detachably connected to the rear side of the second sliding member;

[0026] The front connecting plate and the rear connecting plate are connected by the third guide post;

[0027] The movable platform is located between the front connecting plate and the rear connecting plate;

[0028] A third spring is clamped between the front connecting plate and the movable platform;

[0029] A third spring is clamped between the rear connecting plate and the movable platform.

[0030] Further preferably, a tapered guiding head with a narrower upper part and a wider lower part is provided at the top of the sleeve guide post.

[0031] Further preferably, the support seat includes a first support plate for detachably connecting the limit plate;

[0032] The support seat further includes a guide post support plate, and the first support plate and the guide post support plate are connected by a first guide post;

[0033] An avoidance notch is formed on the guide post support plate, and the avoidance notch faces the cylinder.

[0034] Facilitating the installation of the cylinder.

[0035] Further preferably, the limit plate includes a fixed part fixedly installed on the support seat and a sliding part slidably connected to the fixed part in the horizontal direction; the sliding part and the fixed part are arranged vertically;

[0036] The inner diameter of the fixed part is larger than the inner diameter of the sliding part;

[0037] The upper surface of the sliding part is used to support the end face of the subframe sleeve.

[0038] Compared with the prior art, the beneficial effects of the present utility model:

[0039] 1. The movable platform can be adjusted in three-dimensional positions to meet the fine adjustment of positions of different crimping points.

[0040] 2. The combination of the sleeve guiding column and the inner core positioning column prevents the misalignment of the suspension bushing and the subframe sleeve, and avoids damage during pressing; after the suspension bushing is pressed in, the inner core positioning column is retracted by the springback of the air cylinder, facilitating the blanking of the finished product.

[0041] 3. The sleeve guiding column is made at the upper end, and a taper of 3° - 5° needs to be reserved at the upper end of the sleeve guiding column to prevent the guiding column from jamming with the Z-direction limiting plate during pressing.

[0042] 4. A sliding plate for supporting the subframe sleeve is added at the upper end of the limiting plate to ensure that the centers of the multiple sleeves of the subframe are always concentric with the center of the guiding column. Description of the Drawings

[0043] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;

[0044] Figure 2 It is a schematic structural diagram of Embodiment 1 of the present utility model from another perspective;

[0045] Figure 3 It is a cross-sectional view at the first guiding column of Embodiment 1 of the present utility model;

[0046] Figure 4 It is a cross-sectional view at the second guiding column of Embodiment 1 of the present utility model;

[0047] Figure 5 It is a cross-sectional view at the telescopic rod of the air cylinder of Embodiment 1 of the present utility model;

[0048] Figure 6 It is a schematic diagram of the use state of Embodiment 1 of the present utility model.

[0049] In the figure, 1 is the support seat, 2 is the limiting plate, 3 is the movable platform, 4 is the sleeve guiding column, 5 is the inner core positioning column, 6 is the first sliding member, 7 is the first spring, 8 is the first guiding column, 9 is the second sliding member, 10 is the second spring, 11 is the second guiding column, 12 is the third spring, 13 is the third guiding column, 14 is the air cylinder, 15 is the subframe sleeve, 16 is the bushing, 17 is the front connecting plate, and 18 is the rear connecting plate. Detailed Embodiment

[0050] See Figures 1 to 6, Specific Embodiment 1, a suspension bushing press-fitting tooling support for three-dimensional centering, comprising a support base 1, a movable positioning assembly, and a limit plate 2; the movable positioning assembly includes a movable platform 3 that can move in three dimensions of front-back, left-right, and up-down. The movable platform 3 is movably connected to the support base 1 through a three-dimensional sliding mechanism. A bushing guide post 4 for positioning the subframe bushing 15 and a cylinder 14 are installed on the movable platform 3. The telescopic rod of the cylinder 14 is connected to an inner core positioning post 5 for positioning the inner hole of the suspension bushing 16. A guide hole for slidably connecting the inner core positioning post 5 is provided in the center of the bushing guide post 4, and a receiving groove for receiving the retracted inner core positioning post 5 is provided at the top of the bushing guide post 4. A limit plate 2 is installed on the top of the support base 1, and a movable limit hole for limiting the bushing guide post 4 is provided in the center of the limit plate 2. The utility model realizes the positioning of the subframe bushing 15 through the bushing guide post 4, and realizes the positioning of the suspension bushing 16 through the inner core positioning post 5, thereby ensuring the concentricity of the subframe bushing and the suspension bushing. The synchronous position adjustment of the inner core positioning post 5 and the bushing guide post 4 is realized through the movable platform 3, meeting the fine position adjustment of different pressing points when multiple suspension points are pressed together.

[0051] An installation flange extending outward is provided at the bottom of the limit plate 2, and the installation flange is detachably connected to the support base 1.

[0052] The top surface of the limit plate 2 is a sliding support surface for slidably supporting the end surface of the subframe bushing.

[0053] The three-dimensional sliding mechanism includes a first sliding member 6 for sliding along a first linear direction; a first guide post 8 for guiding the first sliding member 6 to slide along the first linear sliding direction is provided on the support base 1. A first spring 7 sleeved around the first guide post 8 is clamped between the first sliding member 6 and the support base 1; a second guide post 11 with a guiding direction of a second linear direction is installed on the first sliding member 6. The second guide post 11 is slidably connected to a second sliding member 9, and a second spring 10 sleeved on the second guide post 11 is clamped between the second sliding member 9 and the first sliding member 6; a third guide post 13 with a guiding direction of a third linear direction is installed on the second sliding member 9. The third guide post 13 is slidably connected to the movable platform, and a third spring 12 sleeved on the third guide post 13 is clamped between the movable platform and the second sliding member 9; the first linear direction, the second linear direction, and the third linear direction are perpendicular to each other in pairs. It is convenient to realize the movement of the movable platform in three dimensions of front-back, left-right, and up-down. The first linear direction is the vertical direction. The second linear direction is the left-right direction. The third linear direction is the front-back direction.

[0054] The movable platform is located above the second sliding member 9; an avoidance hole for installing the cylinder 14 is provided in the center of the second sliding member 9; the lower part of the first sliding member 6 abuts against the first spring 7.

[0055] The bottom of the first sliding rod is detachably connected with two first guiding columns arranged side by side front and back. There are two first sliding members 6, which are arranged left and right; the two first sliding members are connected by second guiding columns 11 arranged side by side front and back; the second sliding member 9 is located in the area between the two first sliding members 6, and a second spring 10 is clamped between the left side of the second sliding member 9 and the first sliding member 6 on the left side, and a second spring 10 is clamped between the right side of the second sliding member 9 and the first sliding member 6 on the right side. The two guiding columns are located outside the two first guiding columns.

[0056] The front side of the second sliding member 9 is detachably connected with a front connecting plate 17, and the rear side of the second sliding member 9 is detachably connected with a rear connecting plate 18; the front connecting plate 17 and the rear connecting plate 18 are connected by a third guiding column 13; the movable platform is located between the front connecting plate and the rear connecting plate; a third spring 12 is clamped between the front connecting plate and the movable platform; a third spring 12 is clamped between the rear connecting plate and the movable platform.

[0057] The top of the sleeve guiding column 4 is provided with a tapered guiding head with a narrow upper part and a wide lower part.

[0058] The support seat includes a first support plate for detachably connecting a limit plate; the support seat further includes a guiding column support plate, and the first support plate and the guiding column support plate are connected by a first guiding column; an avoidance notch is formed in the guiding column support plate, and the avoidance notch faces the cylinder.

[0059] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A three-dimensional centering suspension bushing press-fitting fixture support, characterized in that: It includes a support seat, a movable positioning component and a limit plate; The movable positioning assembly includes a movable platform that moves in three dimensions: front, back, left, right, up and down. The movable platform is movably connected to the support seat through a three-dimensional sliding mechanism. A sleeve guide column and a cylinder for positioning the sub-frame sleeve are installed on the movable platform. The telescopic rod of the cylinder is connected to an inner core positioning column for positioning the inner hole of the suspension bushing. A guide hole for slidingly connecting the inner core positioning column is provided in the center of the sleeve guide column, and a receiving groove for inwardly contracting and accommodating the inner core positioning column is provided on the top of the sleeve guide column; The limiting plate is installed on the top of the supporting seat, and a movable limiting hole for limiting the sleeve guide column is opened in the center of the limiting plate.

2. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 1 is characterized in that: A mounting flange extending outward is arranged at the bottom of the limiting plate, and the mounting flange is detachably connected to the supporting seat.

3. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 1 is characterized in that: The top surface of the limiting plate is a sliding support surface for slidingly supporting the end surface of the sub-frame sleeve.

4. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 1 is characterized in that: The three-dimensional sliding mechanism includes a first sliding member for sliding along a first linear direction; The support seat is provided with a first guide column for guiding the first sliding member to slide along the first linear sliding direction, and a first spring sleeved on the periphery of the first guide column is sandwiched between the first sliding member and the support seat; A second guide post with a guiding direction in a second straight line direction is installed on the first sliding member, the second guide post is slidably connected to the second sliding member, and a second spring sleeved on the second guide post is sandwiched between the second sliding member and the first sliding member; A third guide post with a guiding direction in a third straight line direction is mounted on the second sliding member, the third guide post is slidably connected to the movable platform, and a third spring sleeved on the third guide post is sandwiched between the movable platform and the second sliding member; The first straight line direction, the second straight line direction and the third straight line direction are perpendicular to each other.

5. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 4 is characterized in that: The movable platform is located above the second sliding member; A avoidance hole for installing the cylinder is provided in the center of the second sliding member; The lower side of the first sliding member abuts against the first spring.

6. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 5, characterized in that: There are two first sliding members, and the two first sliding members are arranged on the left and right; The two first sliding members are connected via the second guide posts arranged side by side in front and back; The second sliding member is located between the two first sliding members, the second spring is sandwiched between the left side of the second sliding member and the first sliding member located on the left side, and the second spring is sandwiched between the right side of the second sliding member and the first sliding member located on the right side.

7. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 6 is characterized in that: The front side of the second sliding member is detachably connected to a front connecting plate, and the rear side of the second sliding member is detachably connected to a rear connecting plate; The front connecting plate and the rear connecting plate are connected via the third guide column; The movable platform is located between the front connecting plate and the rear connecting plate; The third spring is sandwiched between the front connecting plate and the movable platform; The third spring is sandwiched between the rear connecting plate and the movable platform.

8. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 1 is characterized in that: A conical guide head which is narrow at the top and wide at the bottom is arranged on the top of the sleeve guide column.

9. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 1, characterized in that: The support seat comprises a first support plate for detachably connecting the limiting plate; The support seat further comprises a guide post support plate, wherein the first support plate is connected to the guide post support plate via a first guide post; The guide column support plate is provided with an avoidance notch, and the avoidance notch faces the cylinder.

10. The three-dimensional centering suspension bushing press-fitting fixture support according to claim 1, characterized in that: The limit plate comprises a fixed part fixedly mounted on the support seat and a sliding part slidably connected to the fixed part in a horizontal direction; the sliding part and the fixed part are arranged up and down; The inner diameter of the fixed portion is greater than the inner diameter of the sliding portion; The upper surface of the sliding portion is used to support the end surface of the sub-frame bushing.

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