Bidirectional connection quick assembly and disassembly guide device for bearing press fitting

Abstract

The utility model discloses a bidirectional connection quick assembly and disassembly guide device for bearing press fitting. The bidirectional connection quick assembly and disassembly guide device comprises a connecting shaft connected with press fitting equipment, an intermediate shaft and a positioning shaft, the connecting shaft is connected with press fitting equipment through a threaded hole in the right side; the positioning shaft is connected with the shaft workpiece through center positioning of a center hole in the left side of the positioning shaft and fastening of a bolt on an inner hexagon bolt installation groove in the outer circle portion. The T-shaped matching structure of the intermediate shaft, the connecting shaft and the positioning shaft and the U-shaped bolt mounting groove of the positioning shaft are simple in structure and convenient to assemble and disassemble, and can be widely applied to bidirectional connection press fitting and batch production of workpieces and equipment. Meanwhile, the U-shaped bolt installation groove of the positioning shaft 3 can be suitable for shaft workpieces with pitch circles of different specifications, universality is good, tool manufacturing can be reduced in the production process, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing press-fitting equipment, and in particular to a two-way connection quick assembly and disassembly guide device for bearing press-fitting, which mainly solves the problems of difficult assembly and disassembly of two-way connection tooling between shaft workpieces and press-fitting equipment in the existing bearing press-fitting process and low production efficiency, and provides support for mass production of products. Background Art

[0002] The bearing press-fitting process requires that the shaft workpiece and the press-fitting equipment be bidirectionally connected through the tooling. Before press-fitting, the bearing is mounted on the tooling to ensure that the center of the bearing is consistent with the center of the shaft workpiece. The press-fitting equipment transmits the pulling force to the shaft workpiece through the tooling and applies pressure to the outside of the bearing at the same time. The shaft workpiece and the bearing move towards each other under the action of opposite forces and the guidance of the tooling, and finally the bearing is pressed onto the shaft workpiece to achieve bearing press-fitting.

[0003] The original tooling was a single integral tooling. During the assembly and disassembly process, the shaft workpiece and the press-fitting equipment had a certain degree of free movement, resulting in poor alignment. At the same time, there was an adverse effect of the narrow space for bolt tightening, the assembly and disassembly speed was slow, the production process was inefficient, and it was not suitable for mass production of products. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, a two-way connection quick assembly and disassembly guide device for bearing press-fitting is proposed to solve the above-mentioned problems.

[0005] In order to achieve the above technical purpose, the utility model adopts a two-way connection quick assembly and disassembly guide device for bearing press fitting, including a connecting shaft connected to the press fitting device, an intermediate shaft and a positioning shaft; the connecting shaft is connected to the press fitting device through the threaded hole on the right side; the positioning shaft is connected to the shaft workpiece through the top positioning of the center hole on its left side and the bolts on the hexagon socket bolt mounting groove on the outer circle are fastened to realize the connection between the positioning shaft and the shaft workpiece; the intermediate shaft realizes a rotational positioning connection with the connecting shaft and the positioning shaft through the rotational positioning connection ends on both sides.

[0006] As a preferred embodiment of the present invention, the rotation positioning connection end includes: a left T-slot structure located on the left side of the intermediate shaft and a right T-slot structure located on the right side of the intermediate shaft;

[0007] A first T-head structure capable of forming a rotational connection with the right T-slot structure and being integrally connected to the connecting shaft is provided on the left side of the connecting shaft; a second T-head structure capable of forming a rotational connection with the left T-slot structure and being integrally connected to the positioning shaft is provided on the right side of the positioning shaft.

[0008] Further, the positioning shaft is provided with a first rotation positioning hole perpendicular to the axis direction of the positioning shaft; the left side of the intermediate shaft is provided with a second rotation positioning hole perpendicular to the axis direction of the intermediate shaft; and when the second T-head structure allows the insertion of the left T-slot structure, the first rotation positioning hole and the second rotation positioning hole are in a 90° phase; and when the second T-head structure and the left T-slot structure form a connection state, the first rotation positioning hole and the second rotation positioning hole are in a same straight line and in the same phase state;

[0009] A third rotation positioning hole is provided on the right side of the outside of the intermediate shaft and is perpendicular to the axis direction of the intermediate shaft; a fourth rotation positioning hole is provided on the outside of the connecting shaft and is perpendicular to the axis direction of the connecting shaft, and when the first T-head structure allows insertion into the right T-slot structure, the third rotation positioning hole and the fourth rotation positioning hole are in a 90° phase with each other; and when the first T-head structure and the right T-slot structure form a connection state, the third rotation positioning hole and the fourth rotation positioning hole are in the same straight line and in the same phase state.

[0010] Furthermore, the hexagon socket bolt installation groove is an integral U-shaped through groove structure.

[0011] After adopting the above technical improvements, the utility model has the following advantages:

[0012] 1. The connecting shaft and the press-fitting device of the utility model adopt an integral threaded connection design, which is convenient for the rotating assembly and disassembly of the connecting shaft and the intermediate shaft during use;

[0013] 2. The utility model adopts a T-type matching structure between the connecting shaft and the intermediate shaft, and between the intermediate shaft and the positioning shaft, and utilizes the special structure of the T-slot and T-head to realize the rapid connection, positioning and disassembly of the tooling in different phases and positioning conditions;

[0014] 3. The bolt installation groove of the positioning shaft of the utility model is an integral U-shaped through groove, which is convenient for the installation and disassembly of the bolts and is suitable for shaft workpieces with different specifications of pitch circles, with good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is the overall axis section structure diagram of the utility model;

[0016] Figure 2 What is shown is the AA radial section structure diagram of the utility model;

[0017] Figure 3 The figure shows the BB radial cross-sectional structure diagram when the connecting shaft is disassembled in the utility model;

[0018] Figure 4The figure shows the BB radial cross-sectional structure diagram when the intermediate shaft is disassembled in the utility model;

[0019] Among them, 1. connecting shaft; 2. intermediate shaft; 3. positioning shaft; 4. hexagon socket bolt mounting groove; 5. first rotation positioning hole; 6. second rotation positioning hole; 7. third rotation positioning hole; 8. fourth rotation positioning hole; 9. threaded hole; 10. center hole top; 11. left T-slot structure; 12. right T-slot structure; 13. first T-head structure; 14. second T-head structure. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Combination Figure 1 It can be seen that a two-way connection quick assembly and disassembly guide device for bearing press-fitting includes a connecting shaft 1 connected to the press-fitting device, an intermediate shaft 2 and a positioning shaft 3.

[0022] In the above structure, the connection shaft 1 is connected through the threaded hole 9 on the right side and the press-fitting device; the positioning shaft 3 is positioned by the center hole top 10 on the left side and the bolts on the hexagon socket bolt installation groove 4 on the outer circle are tightened to realize the connection between the positioning shaft 3 and the shaft workpiece; at the same time, the intermediate shaft 2 is connected to the connection shaft 1 and the positioning shaft 3 through the rotational positioning connection ends on both sides. In the utility model, the hexagon socket bolt installation groove 4 is an integral U-shaped through-slot structure. Figure 2 The specific structure of the hexagon socket bolt mounting groove 4 can be seen from the AA radial cross-sectional structure diagram.

[0023] In the present utility model, the preferred rotation positioning connection end includes: a left T-slot structure 11 located on the left side of the intermediate shaft 2 and a right T-slot structure 12 located on the right side of the intermediate shaft 2;

[0024] A first T-shaped head structure 13 is provided on the left side of the connecting shaft 1 and can be rotatably connected to the right T-shaped slot structure 12 and is integrally connected to the connecting shaft 1; a second T-shaped head structure 14 is provided on the right side of the positioning shaft 3 and can be rotatably connected to the left T-shaped slot structure 11 and is integrally connected to the positioning shaft 3.

[0025] Continue watching Figure 1A first rotation positioning hole 5 is provided on the outside of the positioning shaft 3 and is perpendicular to the axial direction of the positioning shaft 3; a second rotation positioning hole 6 is provided on the left side of the outside of the intermediate shaft 2 and is perpendicular to the axial direction of the intermediate shaft 2; and when the second T-head structure 14 allows the insertion of the left T-slot structure 11, the first rotation positioning hole 5 and the second rotation positioning hole 6 are in a 90° phase with each other; and when the second T-head structure 14 and the left T-slot structure 11 form a connected state, the first rotation positioning hole 5 and the second rotation positioning hole 6 are in the same straight line and in the same phase state, thereby realizing tension transmission.

[0026] A third rotation positioning hole 7 is provided on the right side of the outside of the intermediate shaft 2, which is perpendicular to the axial direction of the intermediate shaft 2; a fourth rotation positioning hole 8 is provided on the outside of the connecting shaft 1, which is perpendicular to the axial direction of the connecting shaft 1, and when the first T-head structure 13 allows the insertion of the right T-slot structure 12, the third rotation positioning hole 7 and the fourth rotation positioning hole 8 are in a 90° phase with each other; and when the first T-head structure 13 and the right T-slot structure 12 form a connected state, the third rotation positioning hole 7 and the fourth rotation positioning hole 8 are in the same straight line and in the same phase state, thereby realizing tension transmission.

[0027] When the utility model is used, it includes two steps: tool installation (a step before bearing press-fitting) and tool disassembly (disassembly after bearing press-fitting). Among them, tool installation (a step before bearing press-fitting) includes the following steps:

[0028] (1) Install the connecting shaft 1 onto the press-fitting device by rotating it through threads;

[0029] (2) Position the positioning shaft 3 and the shaft workpiece through the center hole top 10, install bolts in the hexagon socket bolt installation groove 4, and connect and fix it to the shaft workpiece;

[0030] (3) Rotate the intermediate shaft 2 so that the second rotation positioning hole 6 and the first rotation positioning hole 5 of the positioning shaft 3 are at a 90° phase, and then insert the second T-shaped head structure 14 into the left T-shaped slot structure 11;

[0031] (4) Rotate the connecting shaft 1 so that the fourth rotation positioning hole 8 and the third rotation positioning hole 7 of the intermediate shaft 2 are in a 90° phase, then push the press-fitting device to drive the connecting shaft 1 and insert the first T-shaped head structure 13 into the right T-shaped slot structure 12;

[0032] (5) Rotate the intermediate shaft 2 so that the first rotation positioning hole 5, the second rotation positioning hole 6, the third rotation positioning hole 7 and the fourth rotation positioning hole 8 of the tooling component are in the same phase (in a straight line), the first T-head structure 13 is in a locked connection state in the right T-slot structure 12, and the second T-head structure 14 is in a locked connection state in the left T-slot structure 11. When the bearing is press-fitted, the press-fitting equipment transmits the pulling force to the shaft workpiece through the guide device and applies pressure to the outside of the bearing at the same time. The shaft workpiece and the bearing move toward each other under the action of opposite forces and the guidance of the guide device, and finally the bearing is press-fitted to the shaft workpiece to realize the assembly of the bearing and the shaft workpiece.

[0033] Tool disassembly (disassembly after bearing press-fitting) includes the following steps:

[0034] (1) Rotate the intermediate shaft 2 so that the second rotation positioning hole 6 and the third rotation positioning hole 7 are at a 90° phase with the fourth rotation positioning hole 8 on the connecting shaft 1 and the first rotation positioning hole 5 on the positioning shaft 3, respectively;

[0035] (2) The mobile press-fitting device drives the connecting shaft 1, and the first T-shaped head structure 13 on the connecting shaft 1 moves out from the right T-shaped slot structure 12 of the intermediate shaft 2. At this time, the connecting shaft 1 is separated from the intermediate shaft 2;

[0036] (3) Pull out the intermediate shaft 2 to separate it from the positioning shaft 3;

[0037] (4) Quickly remove the bolts on the positioning shaft 1 and remove the positioning shaft 1 to complete the tooling disassembly. Figure 3 BB radial section structure diagram when the connecting shaft is disassembled;

[0038] Figure 4 The figure shows the BB radial section structure diagram when the intermediate shaft is disassembled;

[0039] The T-shaped matching structure of the intermediate shaft 2, the connecting shaft 1 and the positioning shaft 3, and the U-shaped bolt mounting groove structure of the positioning shaft of the utility model are simple and easy to assemble and disassemble, and can be widely used in the two-way connection press-fitting and batch production of workpieces and equipment. At the same time, the U-shaped bolt mounting groove of the positioning shaft 3 of the utility model can be applicable to shaft workpieces with different specifications of pitch circles, with good versatility, and the production process can reduce tooling production and reduce production costs.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A two-way connection quick assembly and disassembly guide device for bearing press-fitting, characterized in that: It includes a connecting shaft connected to a press-fitting device, an intermediate shaft and a positioning shaft; the connecting shaft is connected to the press-fitting device through a threaded hole on the right side; the positioning shaft is connected to a shaft workpiece through the top positioning of the center hole on the left side and the bolts on the hexagon socket bolt installation groove on the outer circle are fastened to realize the connection between the positioning shaft and the shaft workpiece; the intermediate shaft realizes a rotational positioning connection with the connecting shaft and the positioning shaft through the rotational positioning connection ends on both sides.

2. A two-way connection quick assembly and disassembly guide device for bearing press-fitting as claimed in claim 1, characterized in that: The rotation positioning connection end includes: a left T-slot structure located on the left side of the intermediate shaft and a right T-slot structure located on the right side of the intermediate shaft; A first T-shaped head structure is provided on the left side of the connecting shaft, which can be rotatably connected to the right T-shaped slot structure and is integrally connected to the connecting shaft; a second T-shaped head structure is provided on the right side of the positioning shaft, which can be rotatably connected to the left T-shaped slot structure and is integrally connected to the positioning shaft.

3. A two-way connection quick assembly and disassembly guide device for bearing press-fitting as claimed in claim 1 or 2, characterized in that: The positioning shaft is provided with a first rotation positioning hole perpendicular to the axis direction of the positioning shaft; the left side of the intermediate shaft is provided with a second rotation positioning hole perpendicular to the axis direction of the intermediate shaft; and when the second T-head structure allows the insertion of the left T-slot structure, the first rotation positioning hole and the second rotation positioning hole are in a 90° phase; and when the second T-head structure and the left T-slot structure are in a connected state, the first rotation positioning hole and the second rotation positioning hole are in a same straight line and in the same phase state; The right side of the outer side of the intermediate shaft is provided with a third rotation positioning hole which is perpendicular to the axis direction of the intermediate shaft; the outer side of the connecting shaft is provided with a fourth rotation positioning hole which is perpendicular to the axis direction of the connecting shaft, and When the first T-head structure allows insertion into the right T-slot structure, the third rotation positioning hole and the fourth rotation positioning hole are in a 90° phase with each other; and when the first T-head structure and the right T-slot structure form a connection state, the third rotation positioning hole and the fourth rotation positioning hole are in the same straight line and in the same phase state.

4. A two-way connection quick assembly and disassembly guide device for bearing press-fitting as claimed in claim 1, characterized in that: The hexagon socket bolt installation groove is an integral U-shaped through groove structure.

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