Assembly tool for interface piece

Abstract

The utility model relates to the technical field of automobile parts, and provides an assembly tool of a connector piece, the connector piece is provided with a main installation hole and a plurality of auxiliary installation holes, and the assembly tool comprises a moving mechanism; the positioning pins are connected with the moving mechanism and used for being in clearance fit with the auxiliary mounting holes; the driving mechanism is connected with the moving mechanism; the expansion sleeve assembly comprises an expansion sleeve arranged outside a shell of the driving mechanism in a sleeving mode and a push sleeve arranged outside a push rod of the driving mechanism in a sleeving mode. When the push rod retracts, the expansion sleeve compresses the push sleeve, so that the outer diameter of the expansion sleeve is smaller than the inner diameter of the main mounting hole; as the push rod extends out, the push sleeve opens the expansion sleeve, so that the outer diameter of the expansion sleeve is larger than the inner diameter of the main mounting hole. According to the assembly tool, the positioning pin is matched with the expansion sleeve assembly, positioning and clamping are carried out through the mounting hole under the condition that the surface precision of the mounting hole of the interface piece is not damaged, and the interface piece can be accurately transferred to the assembly position without additionally arranging a process hole in the interface piece.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an assembly tool for interface parts. Background Art

[0002] Interface parts are used to connect vehicle components to the entire vehicle. Whether the interface parts can be assembled accurately determines whether the connection between the vehicle components and the entire vehicle is accurate.

[0003] For example, the Integrated Brake Control (IBC) connects to the vehicle through an interface casting, which determines the IBC's assembly position and angle within the vehicle. Improper assembly of the IBC can negatively impact braking performance, ultimately affecting driving safety and comfort.

[0004] Typically, when assembling interface components, non-mounting holes (such as specially designed positioning holes or other process holes) are used for positioning and clamping operations to accurately transfer the interface components to the assembly position. However, some interface components do not have non-mounting holes that can be used for positioning and clamping, resulting in a high rate of assembly failure of interface components. Furthermore, if the mounting holes of the interface components are used for positioning and clamping, the surface accuracy of the mounting holes can be damaged, which in turn affects the assembly accuracy of the mounting holes and the vehicle components / the entire vehicle.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0006] In view of this, the utility model provides an assembly tool for interface parts, which can use the mounting holes for positioning and clamping while ensuring that the surface accuracy of the mounting holes of the interface parts is not damaged, thereby eliminating the need to add process holes on the interface parts, and can achieve accurate transfer of the interface parts to the assembly position. It is particularly suitable for interface parts that do not have specially designed non-mounting holes.

[0007] One aspect of the present invention provides an assembly tool for an interface part, wherein the interface part has a main mounting hole and multiple auxiliary mounting holes, and the assembly tool comprises: a moving mechanism; multiple positioning pins connected to the moving mechanism, and the positioning pins are used to fit with the auxiliary mounting holes in a clearance; a driving mechanism connected to the moving mechanism; an expansion sleeve assembly, comprising an expansion sleeve sleeved outside the shell of the driving mechanism and a push sleeve sleeved outside the push rod of the driving mechanism; when the push rod is retracted, the expansion sleeve presses the push sleeve so that the outer diameter of the expansion sleeve is smaller than the inner diameter of the main mounting hole; as the push rod is extended, the push sleeve expands the expansion sleeve so that the outer diameter of the expansion sleeve is larger than the inner diameter of the main mounting hole.

[0008] The positioning pin and the auxiliary mounting hole are fitted with clearance, both locating the interface component and preventing the positioning pin from rubbing against the auxiliary mounting hole during positioning, which could affect the surface accuracy of the auxiliary mounting hole. When the push rod is retracted, the expansion sleeve presses against the push sleeve, allowing the expansion sleeve assembly to extend into the main mounting hole, preventing dynamic friction from damaging the surface accuracy of the main mounting hole. As the push rod extends, the push sleeve expands the expansion sleeve, causing it to tighten against the main mounting hole and thus clamp the interface component. In this way, as the moving mechanism moves, the expansion sleeve assembly precisely positions the interface component to the assembly position. After positioning is complete, the push rod retracts, and the expansion sleeve assembly exits the mounting hole, preventing dynamic friction from damaging the surface accuracy of the main mounting hole and contact with the interface component that could affect its assembly position, ensuring that the interface component remains in its assembled position and does not move.

[0009] Therefore, the assembly tool of the present invention cooperates with the expansion sleeve assembly through the positioning pin to achieve positioning and clamping using the mounting hole while ensuring that the surface accuracy of the mounting hole of the interface part is not damaged. There is no need to add process holes on the interface part to achieve the accurate transfer of the interface part to the assembly position. It is particularly suitable for interface parts that do not have specially designed non-mounting holes.

[0010] In some embodiments, a first annular groove is formed on the outer wall of the tail end of the expansion sleeve, and a first sealing ring is embedded in the first annular groove; when the push rod is retracted, the first sealing ring presses the tail end of the expansion sleeve against the push sleeve.

[0011] Through the design of the tail end of the first sealing ring hoop expansion sleeve, the tail end of the expansion sleeve presses the push sleeve tightly, so that the expansion sleeve assembly extends into the main installation hole.

[0012] In some embodiments, a second annular groove is formed on an outer wall of the head end of the expansion sleeve, a second sealing ring is embedded in the second annular groove, and the second sealing ring presses the head end of the expansion sleeve against the housing.

[0013] By designing the head end of the second sealing ring hoop expansion sleeve, the head end of the expansion sleeve is pressed against the shell, ensuring a stable connection between the expansion sleeve and the shell.

[0014] In some embodiments, the outer wall of the push sleeve forms a tapered surface.

[0015] In this way, as the push rod extends, the push sleeve can effectively open the tail end of the expansion sleeve, so that the expansion sleeve tightens the main mounting hole and then clamps the interface part.

[0016] In some embodiments, the inner wall of the tail end of the expansion sleeve forms an inclined surface matching the conical surface.

[0017] The inclined surface of the expansion sleeve cooperates with the conical surface of the push sleeve to guide the extension and retraction of the push sleeve, making the process of the push sleeve expanding the expansion sleeve and the expansion sleeve closing as the push sleeve retracts smooth and stable.

[0018] In some embodiments, the moving mechanism includes: a horizontal moving mechanism assembled on the tooling body; a vertical moving mechanism connected to the horizontal moving mechanism, and the positioning pin and the driving mechanism are both connected to the vertical moving mechanism.

[0019] The interface parts are driven to move flexibly through the horizontal moving mechanism and the vertical moving mechanism, so as to be accurately positioned at the assembly position.

[0020] In some embodiments, the positioning pin and the driving mechanism are connected to the vertical movement mechanism via an L-shaped bracket.

[0021] Through the L-shaped bracket, the positioning pin and the driving mechanism are separated from the vertical moving mechanism by an appropriate distance, which facilitates the horizontal moving mechanism and the vertical moving mechanism to drive the positioning pin and the expansion sleeve assembly to move, so that the positioning pin and the expansion sleeve assembly respectively cooperate with the auxiliary mounting hole and the main mounting hole of the interface part, thereby realizing the precise positioning of the interface part to the assembly position.

[0022] In some embodiments, the auxiliary mounting holes are distributed around the main mounting hole, and the positioning pins are distributed around the expansion sleeve assembly.

[0023] In this way, the locating pin and the expansion sleeve assembly can accurately match the auxiliary mounting hole and the main mounting hole respectively.

[0024] In some embodiments, the locating pins include two, and the two locating pins are respectively clearance-matched with the two spaced-apart auxiliary mounting holes.

[0025] The two positioning pins are respectively matched with the two auxiliary mounting holes spaced apart from each other to stably position the interface component so that the expansion sleeve assembly can accurately extend into the main mounting hole.

[0026] In some embodiments, the interface component is an interface casting of an integrated brake control system, the main mounting hole is a central inner hole of the interface casting, and the auxiliary mounting hole is a threaded hole of the interface casting.

[0027] In this way, by adopting the assembly tool of the present invention, the positioning pin and the expansion sleeve assembly are matched to achieve positioning and clamping using the center inner hole and the threaded hole of the interface casting without damaging the surface accuracy of the center inner hole and the threaded hole. There is no need to add process holes on the interface casting, and the interface casting can be accurately transferred to the assembly position, ensuring that the assembly position and angle of the integrated braking control system in the whole vehicle are accurate, so that the integrated braking control system has good braking performance.

[0028] Compared with the prior art, the beneficial effects of the present invention include at least:

[0029] The assembly tool of the utility model cooperates with the positioning pin and the expansion sleeve assembly to achieve positioning and clamping using the mounting hole without damaging the surface accuracy of the mounting hole of the interface part. The interface part can be accurately transferred to the assembly position without adding process holes on the interface part. It is particularly suitable for interface parts without specially designed non-mounting holes.

[0030] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0032] Figure 1 A schematic diagram showing the overall structure of an assembly tool for an interface component in an embodiment of the present utility model is shown;

[0033] Figure 2 A partially enlarged structural schematic diagram of an assembly tool in an embodiment of the present utility model is shown;

[0034] Figure 3 A schematic structural diagram showing a drive mechanism and an expansion sleeve assembly of an assembly tool in an embodiment of the present utility model is shown;

[0035] Figure 4 A schematic structural diagram of an interface casting of an integrated braking control system in an embodiment of the present utility model is shown. DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0037] The accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar structures, and their repeated description will be omitted.

[0038] The terms "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. The orientation or position relationship indicated by the terms "upper", "lower", "horizontal", "vertical" and the like are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The term "plurality" means two or more, unless otherwise clearly and specifically defined. In addition, in the description of the present invention, when it is said that a device is "connected" to another device, this includes not only direct connections, but also indirect connections through other elements.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0040] Figure 1 The overall structure of the assembly tooling of the interface parts is shown in figure. Figure 2 It shows the partially enlarged structure of the assembly tooling. Figure 3 The structure of the drive mechanism and expansion sleeve assembly of the assembly tool is schematically shown; Figures 1 to 3 As shown, the assembly tool for the interface part provided by the embodiment of the present invention is applicable to the interface part with a main mounting hole and multiple auxiliary mounting holes. The assembly tool includes:

[0041] Moving mechanism 10;

[0042] A plurality of positioning pins 20 are connected to the moving mechanism 10, and the positioning pins 20 are used to fit with the auxiliary mounting holes;

[0043] A driving mechanism 30 connected to the moving mechanism 10;

[0044] The expansion sleeve assembly 40 includes an expansion sleeve 42 sleeved outside the housing 32 of the drive mechanism 30 and a push sleeve 43 sleeved outside the push rod 33 of the drive mechanism 30;

[0045] When the push rod 33 is retracted, the expansion sleeve 42 presses the push sleeve 43 so that the outer diameter of the expansion sleeve 42 is smaller than the inner diameter of the main mounting hole; as the push rod 33 is extended, the push sleeve 43 expands the expansion sleeve 42 so that the outer diameter of the expansion sleeve 42 is larger than the inner diameter of the main mounting hole.

[0046] The positioning pin 20 is loosely matched with the auxiliary mounting hole, which, on the one hand, plays the role of positioning the interface component, and on the other hand, prevents the positioning pin 20 from rubbing against the auxiliary mounting hole during positioning and affecting the surface accuracy of the auxiliary mounting hole. The positioning pin 20 can be detachably connected to the moving mechanism 10, for example, by plugging and unplugging, so that the appropriate positioning pin 20 can be replaced according to the size of the auxiliary mounting hole. When the push rod 33 is retracted, the expansion sleeve 42 presses the push sleeve 43 so that the expansion sleeve assembly 40 extends into the main mounting hole, avoiding dynamic friction that causes damage to the surface accuracy of the main mounting hole; as the push rod 33 extends, the push sleeve 43 opens the expansion sleeve 42, so that the expansion sleeve 42 tightens the main mounting hole and then clamps the interface component; in this way, as the moving mechanism 10 moves, the expansion sleeve assembly 40 accurately positions the interface component to the assembly position. After positioning is completed, the push rod 33 retracts, and the expansion sleeve assembly 40 withdraws from the mounting hole, which not only prevents dynamic friction from damaging the surface accuracy of the main mounting hole, but also avoids contact with the interface component and affecting the assembly position of the interface component, so that the interface component remains in the assembly position and does not move. The expansion sleeve 42 may be made of a flexible material, such as rubber, to further protect the surface accuracy of the main mounting hole.

[0047] Therefore, the assembly tool of the present invention cooperates with the expansion sleeve assembly 40 through the positioning pin 20 to achieve positioning and clamping using the mounting holes while ensuring that the surface accuracy of the mounting holes of the interface parts (including the main mounting holes and the auxiliary mounting holes) is not damaged. There is no need to add process holes on the interface parts, and the interface parts can be accurately transferred to the assembly position. It is particularly suitable for interface parts that do not have specially designed non-mounting holes.

[0048] In some embodiments, a first annular groove 42 a is formed on the outer wall of the rear end of the expansion sleeve 42 , and a first sealing ring 51 is embedded in the first annular groove 42 a ; when the push rod 33 is retracted, the first sealing ring 51 presses the rear end of the expansion sleeve 42 against the push sleeve 43 .

[0049] By designing the first sealing ring 51 to entangle the tail end of the expansion sleeve 42 , the tail end of the expansion sleeve 42 is pressed against the push sleeve 43 , so that the expansion sleeve assembly 40 extends into the main installation hole.

[0050] In some embodiments, a second annular groove 42 b is formed on the outer wall of the head end of the expansion sleeve 42 . A second sealing ring 52 is embedded in the second annular groove 42 b . The second sealing ring 52 presses the head end of the expansion sleeve 42 against the housing 32 .

[0051] By designing that the second sealing ring 52 hoops the head end of the expansion sleeve 42 , the head end of the expansion sleeve 42 is pressed against the housing 32 , thereby ensuring a stable connection between the expansion sleeve 42 and the housing 32 .

[0052] In some embodiments, the outer wall of the push sleeve 43 forms a tapered surface 430 .

[0053] In this way, as the push rod 33 extends, the push sleeve 43 can effectively open the tail end of the expansion sleeve 42, so that the expansion sleeve 42 tightens the main mounting hole and thus clamps the interface component.

[0054] In some embodiments, the inner wall of the rear end of the expansion sleeve 42 forms an inclined surface 420 that matches the tapered surface 430 .

[0055] The inclined surface 420 of the expansion sleeve 42 cooperates with the conical surface 430 of the push sleeve 43 to guide the extension and retraction of the push sleeve 43, making the process of the push sleeve 43 expanding the expansion sleeve 42 and the expansion sleeve 42 closing as the push sleeve 43 retracts smooth and stable.

[0056] In some embodiments, the moving mechanism 10 includes: a horizontal moving mechanism 11 assembled on the tooling body; a vertical moving mechanism 12 connected to the horizontal moving mechanism 11 , and the positioning pin 20 and the driving mechanism 30 are both connected to the vertical moving mechanism 12 .

[0057] The interface component is driven to move flexibly by the horizontal moving mechanism 11 and the vertical moving mechanism 12 so as to be accurately positioned at the assembly position.

[0058] The horizontal moving mechanism 11 and the vertical moving mechanism 12 may be servo motors, but are not limited thereto, and may also be structures such as cylinders. The driving mechanism 30 may be a cylinder, but is not limited thereto, and may also be structures such as servo motors.

[0059] In some embodiments, the positioning pin 20 and the driving mechanism 30 are connected to the vertical movement mechanism 12 via an L-shaped bracket 60 .

[0060] Through the L-shaped bracket 60, the positioning pin 20 and the driving mechanism 30 are separated from the vertical moving mechanism 12 by an appropriate distance, so that the horizontal moving mechanism 11 and the vertical moving mechanism 12 can drive the positioning pin 20 and the expansion sleeve assembly 40 to move, so that the positioning pin 20 and the expansion sleeve assembly 40 respectively cooperate with the auxiliary mounting hole and the main mounting hole of the interface part, thereby realizing the precise positioning of the interface part to the assembly position.

[0061] The specific working process of the assembly tooling of the interface part includes: the interface part is placed on the fixture tooling; the positioning pin 20 and the expansion sleeve assembly 40 are driven to move to the top of the interface part by the horizontal moving mechanism 11, so that the positioning pin 20 and the expansion sleeve assembly 40 are aligned with the auxiliary mounting hole and the main mounting hole respectively; the positioning pin 20 and the expansion sleeve assembly 40 are driven to move by the vertical moving mechanism 12, so that the positioning pin 20 and the expansion sleeve assembly 40 are successively extended into the auxiliary mounting hole and the main mounting hole; the expansion sleeve assembly 40 is driven to move by the driving mechanism 30, so that the push sleeve 43 opens the expansion sleeve 42, so that the expansion sleeve 42 tightens the main mounting hole and clamps the interface part; the expansion sleeve assembly 40 is driven to move by the vertical moving mechanism 12, and the interface part is taken away from the fixture tooling; and then, the expansion sleeve assembly 40 is driven to move by the horizontal moving mechanism 11, and the interface part is accurately positioned to the assembly position.

[0062] In some embodiments, the auxiliary mounting holes are distributed around the main mounting hole, and the positioning pins 20 are distributed around the expansion sleeve assembly 40 .

[0063] In this way, the locating pin 20 and the expansion sleeve assembly 40 can accurately match with the auxiliary mounting hole and the main mounting hole respectively.

[0064] In some embodiments, there are two positioning pins 20 , and the two positioning pins 20 are respectively loosely matched with two spaced auxiliary mounting holes.

[0065] The two positioning pins 20 are respectively fitted with the two spaced auxiliary mounting holes to stably position the interface component so that the expansion sleeve assembly 40 can accurately extend into the main mounting hole.

[0066] Figure 4 Schematic diagram of the structure of the interface casting of the integrated brake control system; combined Figures 1 to 4 As shown, in some embodiments, the interface component is an interface casting 80 of an integrated brake control system, the main mounting hole is a central inner hole 82 of the interface casting 80 , and the auxiliary mounting hole is a threaded hole 83 of the interface casting 80 .

[0067] The interface casting 80 of the integrated brake control system lacks specially designed positioning holes or other process holes. Its central inner hole 82 and threaded holes 83 are used for assembly with vehicle components / the complete vehicle. Pre-installed bolts in the edge screw holes 85 also cannot be used for positioning and clamping. The assembly fixture of the present invention, through the coordination of the positioning pin 20 and the expansion sleeve assembly 40, allows positioning and clamping using the central inner hole 82 and threaded holes 83 of the interface casting 80 without damaging their surface accuracy. Without adding process holes to the interface casting 80, the interface casting 80 can be accurately transferred to the assembly position, ensuring the integrated brake control system is accurately assembled in the vehicle at the correct position and angle, resulting in excellent braking performance.

[0068] After testing, it was found that the use of the assembly tooling of the present invention to position and clamp the interface casting 80 of the integrated brake control system can increase the assembly qualification rate of the interface casting 80 from 40% to 95%, effectively integrate the brake control system in the whole vehicle, ensure the accurate assembly position and angle, and save machining costs.

[0069] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. An assembly tool for an interface part, wherein the interface part has a main mounting hole and multiple auxiliary mounting holes, characterized in that: The assembly tool comprises: Mobile mechanism; A plurality of positioning pins connected to the moving mechanism, the positioning pins being used for clearance fit with the auxiliary mounting holes; a driving mechanism connected to the moving mechanism; An expansion sleeve assembly includes an expansion sleeve sleeved outside the housing of the driving mechanism and a push sleeve sleeved outside the push rod of the driving mechanism; When the push rod is retracted, the expansion sleeve presses the push sleeve so that the outer diameter of the expansion sleeve is smaller than the inner diameter of the main mounting hole; As the push rod extends, the push sleeve expands the expansion sleeve, so that the outer diameter of the expansion sleeve is larger than the inner diameter of the main mounting hole.

2. The assembly tool according to claim 1, characterized in that: A first annular groove is formed on the outer wall of the tail end of the expansion sleeve, and a first sealing ring is embedded in the first annular groove; When the push rod is retracted, the first sealing ring presses the tail end of the expansion sleeve against the push sleeve.

3. The assembly tool according to claim 2, characterized in that: A second annular groove is formed on the outer wall of the head end of the expansion sleeve. A second sealing ring is embedded in the second annular groove. The second sealing ring presses the head end of the expansion sleeve against the housing.

4. The assembly tool according to claim 1, characterized in that: The outer wall of the push sleeve forms a tapered surface.

5. The assembly tool according to claim 4, characterized in that: The inner wall of the tail end of the expansion sleeve forms an inclined surface matching the conical surface.

6. The assembly tool according to claim 1, characterized in that: The moving mechanism comprises: A horizontal moving mechanism is assembled on the tooling body; The vertical moving mechanism is connected to the horizontal moving mechanism, and the positioning pin and the driving mechanism are both connected to the vertical moving mechanism.

7. The assembly tool according to claim 6, characterized in that: The positioning pin and the driving mechanism are connected to the vertical moving mechanism through an L-shaped bracket.

8. The assembly tool according to claim 1, wherein: The auxiliary mounting holes are distributed around the main mounting hole, and the positioning pins are distributed around the expansion sleeve assembly.

9. The assembly tool according to claim 8, characterized in that: The positioning pins include two, and the two positioning pins are respectively clearance-matched with the two auxiliary mounting holes spaced apart from each other.

10. The assembly tool according to any one of claims 1 to 9, characterized in that: The interface component is an interface casting of an integrated braking control system, the main mounting hole is a central inner hole of the interface casting, and the auxiliary mounting hole is a threaded hole of the interface casting.

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