Lantern ring press-fitting die

Abstract

The utility model discloses a lantern ring press-fitting die which comprises an upper die plate, a lower die plate, a press die assembly connected with the upper die plate and a tool assembly connected with the lower die plate, the tool assembly is suitable for installing and positioning a motor rotor, the press die assembly and the tool assembly are coaxially arranged, and the press die assembly and the tool assembly are coaxially arranged. The pressing die assembly is suitable for being moved to move towards the tool assembly to extrude a lantern ring placed on the motor rotor installed on the tool assembly so that the lantern ring can be assembled on the motor rotor, the limiting assembly comprises a plurality of upper limiting columns and lower limiting columns corresponding to the upper limiting columns, and the pressing die assembly is suitable for being moved to move towards the tool assembly to extrude the lantern ring placed on the motor rotor installed on the tool assembly to enable the lantern ring to be assembled on the motor rotor. The upper limiting column is connected with the upper die plate, the lower limiting column is connected with the lower die plate, the upper limiting column and the lower limiting column are suitable for limiting the moving distance of the die pressing assembly towards the tool assembly, the moving range between the upper die and the lower die is limited through the two limiting parts, and excessive extrusion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fitting dies, in particular to a sleeve ring press-fitting die. Background Art

[0002] Currently, in the motor manufacturing process, pressing the ring onto the motor rotor is a key process step. This step is usually completed by a ring pressing mold. However, the existing ring pressing mold has a series of technical limitations during the pressing process, especially in terms of limiting and control accuracy.

[0003] After searching, it was found that the authorization announcement number is CN115026540B, which discloses a pressing tool for impeller assembly. The patent includes a lower template, an upper mold sleeve, an elastic component and a pressing head. The tool realizes fast and accurate alignment of the impeller and the rotor through precise limiting and power pressing, thereby improving the assembly accuracy and efficiency; however, the patent uses a limiting ring to limit the workpiece to be pressed, ensuring the accuracy of the workpiece placement, but lacks an effective limiting mechanism when the upper and lower molds are closed. When the upper and lower molds of the mold are pressed, due to the lack of a precise limiting device, the up and down movement of the mold is often difficult to control accurately. This results in the mold being damaged by excessive extrusion during the pressing process, and the motor rotor and the ring may be damaged. Excessive extrusion will not only cause product damage, but also increase production costs and maintenance costs, and reduce production efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art. Limiting components are respectively provided on the upper and lower molds, and the moving range between the upper and lower molds is limited by the two limiting components to avoid excessive extrusion.

[0005] In order to solve the above technical problems, the technical solution of the utility model is a ring pressing die, comprising:

[0006] Upper template and lower template;

[0007] a die assembly connected to the upper template;

[0008] a tooling assembly connected to the lower template, the tooling assembly being adapted to mount and position the motor rotor, the die assembly being coaxially disposed with the tooling assembly, the die assembly being adapted to be moved toward the tooling assembly to press a collar placed on the motor rotor mounted on the tooling assembly, such that the collar is assembled on the motor rotor;

[0009] A limit assembly, the limit assembly comprising a plurality of upper limit posts and lower limit posts corresponding to the upper limit posts, the upper limit posts being connected to the upper template, and the lower limit posts being connected to the lower template;

[0010] The upper limit post and the lower limit post are suitable for limiting the distance that the die assembly moves toward the tooling assembly.

[0011] Furthermore, the adjusting component is a threaded rod, the threaded rod is connected to the fixing rod, a threaded hole is provided in the adjusting block, and the threaded rod is threadedly connected in the threaded hole.

[0012] Furthermore, the adjusting component is a threaded rod, the threaded rod is connected to the adjusting block, a threaded hole is provided in the fixing rod, and the threaded rod is threadedly connected in the threaded hole.

[0013] Further, the die assembly includes a mounting seat and an upper pressing head;

[0014] The mounting seat is connected to the upper template, and the upper pressing head is detachably connected to the mounting seat.

[0015] Furthermore, the tooling assembly includes a tooling pressure code, a tooling seat and a tooling sleeve;

[0016] The tooling pressing code is connected to the lower template, the tooling seat is connected to the tooling pressing code, the tooling sleeve is detachably connected to the tooling seat, and the tooling sleeve is used to install and position the motor rotor.

[0017] Furthermore, a fixing block is detachably connected to the tooling sleeve.

[0018] Furthermore, the upper template and the lower template are both provided with a plurality of adjustment slots;

[0019] The die assembly, the tooling assembly, the upper limit column and the lower limit column are all provided with movable parts;

[0020] The die assembly and the upper limit column are adapted to be adjusted in position in any of the adjustment slots on the upper template through the corresponding movable parts;

[0021] The tooling assembly and the lower limit column are suitable for adjusting positions in any of the adjustment slots on the lower template through the corresponding movable parts.

[0022] By adopting the above technical solution, the utility model has the following beneficial effects:

[0023] 1. Through the setting of structures such as the upper limit column and the lower limit column, the workpiece in the tooling assembly is squeezed when the die assembly moves toward the tooling assembly. The upper limit column and the lower limit column limit the movement stroke. When the upper limit column contacts the lower limit column, it is the maximum movement stroke of the die assembly, avoiding excessive squeezing of the workpiece.

[0024] 2. By setting up structures such as fixed rods and adjusting blocks, the upper limit column and the lower limit column are divided into two parts: the fixed rod and the adjusting block. By adjusting the distance between the fixed rod and the adjusting block, the overall length of the limit column can be changed to adapt to workpieces of different specifications.

[0025] 3. The detachable upper pressing head and tooling sleeve make it easier to replace the upper pressing head and tooling sleeve when changing different workpieces, thereby improving the accuracy of workpiece positioning and extrusion.

[0026] 4. Through the setting of structures such as fixed blocks, after the tooling sleeve positions the workpiece, the surface of the workpiece is further fixed by installing fixed blocks that match the corresponding workpiece on the tooling sleeve to avoid shaking of the workpiece during subsequent extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the die assembly and tooling assembly of the present invention;

[0029] Figure 3 This is a schematic structural diagram of the die assembly of the present utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the tooling assembly of the utility model;

[0031] Figure 5 This is a structural diagram of the fixing block of the utility model.

[0032] In the figure: 1. Upper template; 2. Lower template;

[0033] 3. Die assembly; 31. Mounting seat; 32. Upper pressing head;

[0034] 4. Tooling assembly; 41. Tooling pressure code; 42. Tooling seat; 43. Tooling sleeve; 44. Fixing block;

[0035] 5. Limit assembly; 51. Upper limit column; 52. Lower limit column; 53. Fixing rod; 54. Adjustment block;

[0036] 6. Adjustment slot; 7. Motor rotor; 8. Ring. DETAILED DESCRIPTION

[0037] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0038] Example 1

[0039] like Figure 1-2As shown, the ring pressing die includes:

[0040] Upper template 1 and lower template 2;

[0041] A die assembly 3 connected to the upper die plate 1;

[0042] A tooling assembly 4 connected to the lower mold plate 2, the tooling assembly 4 is suitable for mounting and positioning the motor rotor 7, the die assembly 3 and the tooling assembly 4 are coaxially arranged, and the die assembly 3 is suitable for being moved toward the tooling assembly 4 to squeeze the collar 8 placed on the motor rotor 7 mounted on the tooling assembly 4, so that the collar 8 is assembled on the motor rotor 7;

[0043] The limiting assembly 5 includes a plurality of upper limiting posts 51 and lower limiting posts 52 corresponding to the upper limiting posts 51 . The upper limiting posts 51 are connected to the upper template 1 , and the lower limiting posts 52 are connected to the lower template 2 .

[0044] The upper limit post 51 and the lower limit post 52 are suitable for limiting the distance that the die assembly 3 moves toward the tooling assembly 4 .

[0045] like Figure 2 As shown, the upper limit column 51 and the lower limit column 52 are each divided into a fixing rod 53 and an adjusting block 54;

[0046] An adjusting component is provided between the adjusting block 54 and the fixing rod 53 , and the adjusting component is suitable for changing the distance between the fixing rod 53 and the adjusting block 54 .

[0047] like Figure 1-2 As shown, the adjusting component is a threaded rod. In some embodiments, the threaded rod can be connected to the fixing rod 53. A threaded hole is provided in the adjusting block 54, and the threaded rod is threadedly connected in the threaded hole.

[0048] like Figure 1-2 As shown, the adjusting component is a threaded rod. In some embodiments, the threaded rod can also be connected to the adjusting block 54. A threaded hole is opened in the fixing rod 53, and the threaded rod is threadedly connected in the threaded hole.

[0049] The working principle of this embodiment is as follows:

[0050] When in use, the motor rotor is inserted into the tooling assembly 4, and the collar is placed at the corresponding position in the motor rotor. The upper template 1 is connected to a driving device, which drives the upper template 1 and the die assembly 3 to move together in the direction of the tooling assembly 4. During the movement, the collar is squeezed to achieve a stable connection between the collar and the motor rotor.

[0051] The driving device can be a cylinder that can drive the upper mold plate 1 and the die assembly 3 to move back and forth longitudinally;

[0052] It should be noted that the tooling assembly 4, the die assembly 3 and the motor rotor inserted into the tooling assembly 4 are all coaxially arranged;

[0053] When the die assembly 3 moves toward the tooling assembly 4 and squeezes the collar, the upper limit post 51 also moves with the upper mold plate 1, and the upper limit post 51 continuously approaches the lower limit post 52. When the upper limit post 51 contacts the lower limit post 52, the maximum travel of the die assembly 3 is reached. The upper limit post 51 and the lower limit post 52 limit the travel of the die assembly 3 to avoid excessive squeezing of the collar and the motor rotor when the drive device loses control or the control accuracy is low, which may cause damage to the product and equipment.

[0054] On the basis of the above, the upper limit column 51 and the lower limit column 52 can be divided into two parts: a fixed rod 53 and an adjusting block 54. The fixed rod 53 and the adjusting block 54 are connected by an adjusting component. The adjusting component can change the distance between the fixed rod 53 and the adjusting block 54. By changing the distance, the overall length of the limit column can be changed to adapt to different specifications of extruded workpieces. Taking the motor rotor as an example, the lengths of motor rotors of different specifications are different. In the process of extruding the corresponding collar, the distance that the die assembly 3 needs to move also changes accordingly. Therefore, the upper limit column 51 and the lower limit column 52, which limit the moving distance of the die assembly 3, also need to be changed in length to play the same limiting role.

[0055] There are two types of adjustment components, both of which are in the form of threaded rods. One type is a threaded rod connected to a fixed rod 53 and connected to an adjustment block 54 by a threaded connection. By rotating the adjustment block 54, the adjustment block 54 moves in the axial direction of the threaded rod, thereby changing the overall length of the limit column.

[0056] The other is that the threaded rod is connected to the adjusting block 54, and a threaded hole is opened in the fixing block 44. By rotating the adjusting block 54, the length of the threaded rod extending into the threaded hole is changed, thereby changing the overall length of the limit column.

[0057] Example 2

[0058] like Figure 3 As shown, this embodiment further includes the following structures based on the first embodiment: the die assembly 3 includes a mounting seat 31 and an upper pressing head 32;

[0059] The mounting seat 31 is connected to the upper template 1 , and the upper pressing head 32 is detachably connected to the mounting seat 31 .

[0060] like Figure 4 As shown, the tooling assembly 4 includes a tooling pressure code 41, a tooling seat 42 and a tooling sleeve 43;

[0061] The tooling pressing code 41 is connected to the lower template 2 , the tooling seat 42 is connected to the tooling pressing code 41 , and the tooling sleeve 43 is detachably connected to the tooling seat 42 . The tooling sleeve 43 is used to install and position the motor rotor 7 .

[0062] like Figure 5 As shown, a fixing block 44 is detachably connected to the tooling sleeve 43 .

[0063] like Figure 1-2 As shown, a plurality of adjustment slots 6 are provided on both the upper template 1 and the lower template 2;

[0064] The die assembly 3, the tooling assembly 4, the upper limit post 51 and the lower limit post 52 are all provided with movable parts;

[0065] The die assembly 3 and the upper limit post 51 are adapted to be positionally adjusted in any adjustment slot 6 on the upper die plate 1 through corresponding movable parts;

[0066] The tooling assembly 4 and the lower limit column 52 are suitable for adjusting the position in any adjustment slot 6 on the lower template 2 through corresponding movable parts;

[0067] In this embodiment, the movable parts connected to the tooling pressure code 41 in the tooling assembly 4 are a T-shaped block sliding in the adjustment slot 6 and an L-shaped block corresponding to the tooling pressure code 41 located above the tooling pressure code 41. The T-shaped block and the L-shaped block are connected by bolts. After the tooling pressure code 41 is adjusted to the required position, the T-shaped block is synchronously moved to the adjustment slot 6 at the corresponding position. By turning the bolt, the L-shaped block is pressed on the tooling pressure code 41 and pressure is applied, so that the tooling pressure code 41 is fixed to the lower template 2;

[0068] The remaining movable parts may be bolts connected to the die assembly 3, the upper limit column 51 and the lower limit column 52, and corresponding sliders with threaded holes in the adjustment slot 6. After adjusting to the required position, the slider is pushed to the corresponding position, and then the bolts are rotated to tighten the slider in the adjustment slot 6, so that the slider fits on the inner wall of the adjustment slot 6 to achieve fixation.

[0069] In other embodiments, all movable parts are positioned and fixed by means of bolts connected to each other and corresponding sliders that slide in the adjustment slots 6 and have threaded holes.

[0070] The working principle of this embodiment is as follows:

[0071] During the process of inserting the motor rotor into the tooling assembly 4, specifically inserting it into the tooling sleeve 43, the tooling sleeve 43 is detachably mounted coaxially on the tooling seat 42. After the motor rotor is inserted into the tooling sleeve 43, the tooling sleeve 43 can position the motor rotor, ensuring that the motor rotor and the tooling sleeve 43 are located on the same axis. In the subsequent extrusion process, the extrusion will not be damaged due to the eccentricity with the die assembly 3;

[0072] The detachable setting of the tooling sleeve 43 improves the flexibility of use. The tooling sleeve 43 and the tooling seat 42 can be connected by bolts. When replacement is needed, the bolts can be loosened. When replacing a motor rotor of a different specification, the tooling sleeve 43 of the corresponding specification can be replaced simultaneously.

[0073] At the same time, a detachable fixing block 44 is also provided on the tooling sleeve 43. The fixing block 44 can be connected to the tooling sleeve 43 by bolts. A keyway is usually provided on the shaft of the motor rotor. The fixing block 44 is selected to have specifications that match the keyway. When the motor rotor is inserted into the tooling sleeve 43, the fixing block 44 is stuck in the keyway, further restricting the position of the motor rotor and preventing poor extrusion effect due to shaking when the subsequent die assembly 3 is extruded on it.

[0074] Corresponding to the detachable tooling sleeve 43 is the upper pressure head 32 in the die assembly 3. The upper pressure head 32 is also connected to the mounting base 31 in a detachable manner. The connection method can be bolt fixing. When replacing motor rotors of different specifications, due to changes in size, the corresponding upper pressure head 32 also needs to be adjusted. The detachable setting is more flexible and convenient.

[0075] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Ring pressing die, characterized by: include: an upper template (1) and a lower template (2); A die assembly (3) connected to the upper die plate (1); a tooling assembly (4) connected to the lower template (2), the tooling assembly (4) being suitable for mounting and positioning a motor rotor (7), the die assembly (3) and the tooling assembly (4) being coaxially arranged, the die assembly (3) being suitable for being moved toward the tooling assembly (4) to squeeze a collar (8) placed on the motor rotor (7) mounted on the tooling assembly (4), so that the collar (8) is assembled on the motor rotor (7); A limit assembly (5), the limit assembly (5) comprising a plurality of upper limit columns (51) and lower limit columns (52) corresponding to the upper limit columns (51), the upper limit columns (51) being connected to the upper template (1), and the lower limit columns (52) being connected to the lower template (2); The upper limit post (51) and the lower limit post (52) are suitable for limiting the distance that the die assembly (3) moves toward the tooling assembly (4).

2. The ring pressing die according to claim 1, characterized in that: The upper limit column (51) and the lower limit column (52) are both divided into a fixing rod (53) and an adjusting block (54); An adjusting component is provided between the adjusting block (54) and the fixing rod (53), and the adjusting component is suitable for changing the distance between the fixing rod (53) and the adjusting block (54).

3. The ring pressing die according to claim 2, characterized in that: The adjusting component is a threaded rod, the threaded rod is connected to the fixing rod (53), a threaded hole is provided in the adjusting block (54), and the threaded rod is threadedly connected in the threaded hole.

4. The ring pressing die according to claim 2, characterized in that: The adjusting component is a threaded rod, the threaded rod is connected to the adjusting block (54), a threaded hole is provided in the fixing rod (53), and the threaded rod is threadedly connected in the threaded hole.

5. The ring pressing die according to claim 1, characterized in that: The die assembly (3) comprises a mounting seat (31) and an upper pressing head (32); The mounting seat (31) is connected to the upper template (1), and the upper pressing head (32) is detachably connected to the mounting seat (31).

6. The ring pressing die according to claim 1, characterized in that: The tooling assembly (4) includes a tooling pressure code (41), a tooling seat (42) and a tooling sleeve (43); The tooling pressure code (41) is connected to the lower template (2), the tooling seat (42) is connected to the tooling pressure code (41), and the tooling sleeve (43) is detachably connected to the tooling seat (42). The tooling sleeve (43) is used to install and position the motor rotor (7).

7. The ring pressing die according to claim 6, characterized in that: A fixing block (44) is detachably connected to the tooling sleeve (43).

8. The ring pressing die according to claim 1, characterized in that: The upper template (1) and the lower template (2) are both provided with a plurality of adjustment slots (6); The die assembly (3), the tooling assembly (4), the upper limit post (51) and the lower limit post (52) are all provided with movable parts; The die assembly (3) and the upper limit column (51) are suitable for adjusting the position in any of the adjustment slots (6) on the upper template (1) through the corresponding movable parts; The tooling assembly (4) and the lower limiting column (52) are suitable for adjusting positions in any of the adjustment slots (6) on the lower template (2) through the corresponding movable parts.

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