Shell positioning mechanism for axial speed reducing mechanism of electrically-controlled pipe column

Abstract

The utility model discloses a shell positioning mechanism for an axial speed reducing mechanism of an electrically-controlled pipe column. The shell positioning mechanism comprises a workbench, a first pressing block, a second pressing block, a third pressing block, a first positioning assembly and a second positioning assembly. By means of the mode, according to the shell positioning mechanism for the axial speed reducing mechanism of the electrically-controlled pipe column, a shell is accurately positioned through the profiling positioning boss and the positioning bracket, then the shell is supported and pressed through the supporting base and the pressing block, the situations of displacement, inclination and the like of the shell in the assembling and machining process are prevented, and the shell positioning accuracy is improved. The positioning accuracy and stability can be improved, the positioning requirements of different shells can be met, the universality is high, and operation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning a speed reduction mechanism housing, in particular to a housing positioning mechanism for an electrically adjustable pipe column axial speed reduction mechanism. Background Art

[0002] In the automotive steering system, the axial adjustment of the electric control column is usually performed through a motor and an axial reduction mechanism. Since the housing of the axial reduction mechanism of the electric control column is an irregular structure and the installation space is very limited, a corresponding fixture needs to be designed during the assembly process for positioning.

[0003] However, the positioning effect of existing positioning fixtures is poor. During processing and assembly, the product is still easy to move, resulting in poor assembly accuracy and low product yield. In addition, existing fixtures are generally only applicable to one product. If different structures of products are to be processed, different fixtures need to be developed, which not only has poor versatility, but also greatly increases production and maintenance costs. Utility Model Content

[0004] The utility model provides a shell positioning mechanism for an electrically adjustable pipe column axial speed reduction mechanism, which has the advantages of high reliability, precise positioning, compact structure, etc., and has broad market prospects in terms of application and popularization.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is:

[0006] Provided is a housing positioning mechanism for an electrically adjustable pipe column axial speed reduction mechanism, comprising: a workbench, a first pressing block, a second pressing block, a third pressing block, a first positioning assembly and a second positioning assembly, wherein the first positioning assembly and two groups of the second positioning assemblies are arranged on the workbench and are arranged in a triangle, the first pressing block is movably arranged above the first positioning assembly, and the second pressing block is movably arranged above the second positioning assembly, so that the product is fixed on the positioning assembly through the pressing blocks;

[0007] The first positioning assembly comprises a first positioning support seat, a lifting movable groove, a lifting guide groove, a lifting adjustment groove, a lifting connection frame, a positioning bracket, a first contoured positioning boss, a lifting guide rod, a lifting locking screw hole, and a lifting locking bolt. The first positioning support seat is arranged on the workbench, the lifting movable groove and the lifting guide groove are arranged on the first positioning support seat, the lifting adjustment groove is arranged on the side wall of the first positioning support seat, the positioning bracket for supporting and positioning the bottom of the product is arranged on the lifting connection frame, the first contoured positioning boss is arranged on the positioning bracket to be movably connected with the positioning hole / groove on the product, the lifting locking screw hole is arranged on the side wall of the lifting connection frame, the lower part of the lifting connection frame is movably connected with the lifting movable groove, the upper end of the lifting guide rod is connected with the lifting connection frame, and the lower part thereof is movably connected with the lifting guide groove, the inner end of the lifting locking bolt passes through the lifting adjustment groove and is threadedly connected with the lifting locking screw hole to lock the lifting connection frame on the first positioning support seat, thereby fixing the height of the positioning bracket and the contoured positioning boss;

[0008] The second positioning assembly includes a second positioning support seat and a second contoured positioning boss. The second positioning support seat is arranged on the workbench and contacts the bottom surface of the product to support the product. The second contoured positioning boss is arranged on the top of the second positioning support seat and cooperates with the positioning hole on the shell for positioning.

[0009] In a preferred embodiment of the present invention, the lifting and lowering adjustment groove is a waist-shaped hole structure.

[0010] In a preferred embodiment of the present invention, the lifting guide groove is arranged on the outer side of the lifting movable groove.

[0011] In a preferred embodiment of the present invention, the lifting movable groove is communicated with the lifting guide groove.

[0012] In a preferred embodiment of the present invention, a driving device is connected to each of the first pressing block and the second pressing block to drive the first pressing block and the second pressing block to approach or move away from the positioning assembly respectively.

[0013] In a preferred embodiment of the present invention, the first positioning support seat and the second positioning support seat are movably disposed on the workbench respectively.

[0014] In a preferred embodiment of the present invention, the positioning support seat is connected to the installation connection hole on the workbench by bolts.

[0015] The beneficial effects of the utility model are as follows: the shell is accurately positioned by the contoured positioning boss and the positioning bracket, and the shell is supported and pressed by the support seat and the pressure block to prevent the shell from displacement, tilting, etc. during the assembly process. Not only can the positioning accuracy and stability be improved, but also the positioning requirements of different shells can be met, the utility model has strong versatility, and is easy to operate and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of a housing positioning mechanism for an electrically adjustable pipe column axial speed reduction mechanism of the utility model;

[0018] Figure 2 The utility model is a schematic diagram of the assembly structure of a preferred embodiment of a housing positioning mechanism for an electrically adjustable pipe column axial speed reduction mechanism. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-2 , the utility model embodiment includes:

[0021] A shell positioning mechanism for an electrically adjustable pipe column axial speed reduction mechanism, the structure of which includes: a workbench 1, a first pressure block 2, a second pressure block 3, a third pressure block 4, a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly, the second positioning assembly and the third positioning assembly are arranged on the workbench to accurately position the shell 5, the first pressure block is movably arranged above the first positioning assembly, the second pressure block is movably arranged above the second positioning assembly, and the third pressure block is movably arranged above the third positioning assembly, so that the product can be fixed on the positioning assembly through the pressure blocks to prevent it from moving and loosening during subsequent processing activities.

[0022] The first positioning assembly includes a first positioning support seat 61, a lifting movable groove 62, a lifting guide groove, a lifting adjustment groove 63, a lifting connection frame 64, a positioning bracket 65, a first contoured positioning boss 66, a lifting guide rod 67, a lifting locking screw hole, and a lifting locking bolt 68. The first positioning support seat is movably arranged on the workbench and contacts the bottom surface of the product to support the product. The lifting movable groove and the lifting guide groove are arranged on the first positioning support seat, and the lifting adjustment groove is arranged on the side wall of the first positioning support seat. The positioning bracket for supporting and positioning the bottom of the product is arranged on the lifting connection frame. The first contoured positioning boss is arranged on the positioning bracket to be movably connected with the positioning hole / slot on the product, the lifting locking screw hole is arranged on the side wall of the lifting connecting frame, the lower part of the lifting connecting frame is movably connected with the lifting movable slot to perform lifting movement, the upper end of the lifting guide rod is connected to the lifting connecting frame, and the lower part thereof is movably connected with the lifting guide slot to improve the accuracy of height adjustment, the inner end of the lifting locking bolt passes through the lifting adjustment slot and is threadedly connected to the lifting locking screw hole to lock the lifting connecting frame on the first positioning support seat, thereby fixing the height of the positioning bracket and the contoured positioning boss.

[0023] Further preferably, the lifting adjustment groove is a waist-shaped hole structure.

[0024] Further preferably, the lifting guide groove is arranged on the outer side of the lifting movable groove.

[0025] The second positioning assembly includes a second positioning support seat 71 and a second contoured positioning boss 72. The second positioning support seat is movably arranged on the workbench, and the second contoured positioning boss is fixedly arranged on the top of the second positioning support seat to cooperate with the positioning hole on the shell for positioning.

[0026] The third positioning assembly includes a third positioning support seat 81 and a third contoured positioning boss 82. The third positioning support seat is movably arranged on the workbench, and the third contoured positioning boss is fixedly arranged on the top of the third positioning support seat to cooperate with the positioning hole on the shell for positioning.

[0027] Further preferably, the first pressing block, the second pressing block and the third pressing block are respectively connected to a first driving cylinder 21, a second driving cylinder 31 and a third driving cylinder 41 to drive the pressing blocks to perform lifting / rotating motion.

[0028] Further preferably, the first driving cylinder, the second driving cylinder and the third driving cylinder are arranged on a workbench outside the positioning assembly.

[0029] Further preferably, the first driving cylinder, the second driving cylinder and the third driving cylinder can all be lever hydraulic cylinders.

[0030] Further preferably, an oil circuit block 9 connected to the first driving cylinder, the second driving cylinder and the third driving cylinder is arranged on the workbench.

[0031] Further preferably, the positioning support seat is connected to the installation connection hole on the workbench by bolts, so that the position of the positioning support seat can be adjusted according to the structure of the product to meet different positioning requirements.

[0032] The utility model discloses a shell positioning mechanism for an axial speed reduction mechanism of an electrically adjustable pipe column, which has the beneficial effects of accurately positioning the shell by means of a contoured positioning boss and a positioning bracket, and then supporting and pressing the shell by means of a support seat and a pressure block, thereby preventing the shell from being displaced or tilted during assembly and processing. This not only improves the accuracy and stability of positioning, but also meets the positioning requirements of different shells, has strong versatility, and is convenient for operation and maintenance.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A housing positioning mechanism for an electrically adjustable pipe column axial speed reduction mechanism, characterized in that: include: A workbench, a first pressing block, a second pressing block, a third pressing block, a first positioning assembly and a second positioning assembly, wherein the first positioning assembly and two groups of the second positioning assemblies are arranged on the workbench and are arranged in a triangle, the first pressing block is movably arranged above the first positioning assembly, and the second pressing block is movably arranged above the second positioning assembly, so as to fix the product on the positioning assembly through the pressing blocks; The first positioning assembly comprises a first positioning support seat, a lifting movable groove, a lifting guide groove, a lifting adjustment groove, a lifting connection frame, a positioning bracket, a first contoured positioning boss, a lifting guide rod, a lifting locking screw hole, and a lifting locking bolt. The first positioning support seat is arranged on the workbench, the lifting movable groove and the lifting guide groove are arranged on the first positioning support seat, the lifting adjustment groove is arranged on the side wall of the first positioning support seat, the positioning bracket for supporting and positioning the bottom of the product is arranged on the lifting connection frame, the first contoured positioning boss is arranged on the positioning bracket to be movably connected with the positioning hole / groove on the product, the lifting locking screw hole is arranged on the side wall of the lifting connection frame, the lower part of the lifting connection frame is movably connected with the lifting movable groove, the upper end of the lifting guide rod is connected with the lifting connection frame, and the lower part thereof is movably connected with the lifting guide groove, the inner end of the lifting locking bolt passes through the lifting adjustment groove and is threadedly connected with the lifting locking screw hole to lock the lifting connection frame on the first positioning support seat, thereby fixing the height of the positioning bracket and the contoured positioning boss; The second positioning assembly includes a second positioning support seat and a second contoured positioning boss. The second positioning support seat is arranged on the workbench and contacts the bottom surface of the product to support the product. The second contoured positioning boss is arranged on the top of the second positioning support seat and cooperates with the positioning hole on the shell for positioning.

2. The housing positioning mechanism for the electrically adjustable pipe column axial speed reduction mechanism according to claim 1, characterized in that: The lifting and lowering adjustment groove is a waist-shaped hole structure.

3. The housing positioning mechanism for the electrically adjustable pipe column axial speed reduction mechanism according to claim 1, characterized in that: The lifting guide groove is arranged on the outer side of the lifting movable groove.

4. The housing positioning mechanism for the electrically adjustable pipe column axial speed reduction mechanism according to claim 1, characterized in that: The lifting movable groove is communicated with the lifting guide groove.

5. The housing positioning mechanism for the electrically adjustable pipe column axial speed reduction mechanism according to claim 1, characterized in that: The first pressing block and the second pressing block are each connected to a driving device to respectively drive the first pressing block and the second pressing block to approach or move away from the positioning assembly.

6. The housing positioning mechanism for the electrically adjustable pipe column axial speed reduction mechanism according to claim 1, characterized in that: The first positioning support seat and the second positioning support seat are movably arranged on the workbench respectively.

7. The housing positioning mechanism for the electrically adjustable pipe column axial speed reduction mechanism according to claim 6, characterized in that: The positioning support seat is connected to the installation connection hole on the workbench through bolts.

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