Large tight-fit shaft tapping assembly tool

Abstract

The present invention discloses a large-scale tight-fit shaft knocking assembly tool, including a base, a holding mechanism and a knocking mechanism, wherein the holding mechanism is composed of a symmetrically arranged support block, a positioning assembly and a reset assembly. The knocking mechanism is installed on the base through a lifting assembly, and the knocking mechanism comprises a motor, a rotating disk and multiple knocking assemblies. The reset assembly comprises a mounting plate, a reset plate and a knocking rod, and the knocking assembly comprises a fixing part, a connecting part and a knocking part. The large-scale tight-fit shaft knocking assembly tool can gradually knock the knocking rod through the knocking mechanism, and the knocking speed can be adjusted to realize automatic knocking, so as to knock the rotating shaft into the rotor of the motor. After the rotating disk rotates, it can be knocked continuously to increase the frequency of knocking, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to an assembly tool technology, in particular to a large-scale tight-fit shaft knocking assembly tool. Background Art

[0002] The rotor and the shaft in the motor are in an interference fit. At this time, the tolerance zone of the hole is below the tolerance zone of the shaft. In the process of mechanical processing and manufacturing, the fit state of two or more parts can be roughly divided into clearance fit, transition fit and interference fit. Interference fit means that the diameter of the matched shaft must be larger than the hole diameter, and special tools must be used to squeeze it in, or the characteristics of thermal expansion and contraction must be used to heat the hole, and while the hole diameter is expanded, it is quickly put on the shaft. After cooling and contraction, the two parts will fit tightly into one.

[0003] At present, the interference fit cold assembly of shaft parts and hole parts mostly adopts the method of knocking to squeeze the shaft parts into the hole parts. However, the existing interference fit assembly mostly still relies on manual work, with a low degree of automation, requiring a lot of labor and time, which is not conducive to improving work efficiency.

[0004] CN214979058U discloses a bearing outer ring assembly positioning tool, which can achieve the assembly effect, but during assembly, it is necessary to lift the knocking sleeve and then knock it, forming intermittent knocking, which reduces work efficiency. Summary of the invention

[0005] In order to solve the defects of the above-mentioned prior art, the present invention proposes a large-scale tight-fit shaft tapping assembly tool.

[0006] The technical solution of the present invention is achieved in this way:

[0007] A large-scale tight-fit shaft tapping assembly tool, characterized by comprising:

[0008] A base,

[0009] A holding mechanism for fixing the motor, the holding mechanism is composed of a symmetrically arranged support block, a positioning assembly and a reset assembly, the positioning assembly is arranged in the middle of the support block, the reset assembly is arranged at the upper end of the support block, and

[0010] A knocking mechanism for knocking a reset component, the knocking mechanism is installed on a base through a lifting component, the knocking mechanism has a motor, a rotating disk and multiple knocking components, the motor is arranged on the lifting component, the rotating disk is connected to the motor, the knocking components are evenly arranged on the rotating disk, one end of the knocking component is installed on the rotating disk, and the other end is located above the reset component, wherein

[0011] The reset assembly comprises a mounting plate, a reset plate and a knocking rod, wherein the mounting plate is arranged on a supporting block, the reset plate is located at the upper end of the mounting plate, guide columns are arranged at the four corners of the mounting plate, a first spring is sleeved on the guide column, the first spring is located between the mounting plate and the reset plate, a positioning sleeve is arranged on the reset plate, the knocking rod is arranged in the positioning sleeve, an extension rod is arranged on the bottom surface of the reset plate, a through slot is arranged in the middle of the mounting plate, and the extension rod is located in the through slot,

[0012] The knocking assembly comprises a fixing part, a connecting part and a knocking part. The fixing part is installed on the rotating disk through a first pin shaft. The connecting part is connected to the fixing part. One end of the knocking part is placed inside the connecting part, and the other end is located above the knocking rod.

[0013] In the present invention, the lifting assembly comprises a cylinder and a positioning seat, the cylinder is installed at the upper end of the positioning seat, the motor is arranged in the middle of the positioning seat, and the cylinder passes through the positioning seat to be connected with the motor.

[0014] In the present invention, a fixing groove for placing a fixing member is provided on the rotating disk.

[0015] In the present invention, the interior of the connecting member is hollowed out to form a mounting area, and the rear end of the mounting area has a through hole.

[0016] In the present invention, a retaining block is provided in the installation area, a mounting hole is provided in the middle of the retaining block, second pins are provided on both sides of the retaining block, and the retaining block is connected to the connecting member via the second pins.

[0017] In the present invention, the knocking piece is composed of a ball head, a vertical part, a reinforcement part and a mounting part. The mounting part is placed in the mounting hole, and the ball head is located at the upper end of the knocking rod.

[0018] In the present invention, symmetrical limiting pins are provided on both sides of the retaining block, and the mounting portion is provided with a rotationally symmetrical fan-shaped groove, and the front end of the limiting pin is located in the fan-shaped groove.

[0019] In the present invention, the angle of the fan-shaped groove is less than 90°.

[0020] In the present invention, a square portion is provided on the mounting portion, a rotating part is provided on the square portion, the middle of the rotating part is connected to the square portion through a square hole, hinge rings are provided on both sides of the rotating part, a protrusion is provided on the retaining block, a symmetrical second spring is provided at the lower end of the protrusion, and the lower ends of the second springs are respectively hingedly connected to the hinge rings.

[0021] In the present invention, the through slot has a first cross arm and a second cross arm, the upper ends of the first cross arm and the second cross arm are in contact with the reset plate, and the lower ends are hinged in the through slot.

[0022] The large-scale tight-fit shaft knocking assembly tool of the present invention has the following beneficial effects: the large-scale tight-fit shaft knocking assembly tool can gradually knock the knocking rod through the knocking mechanism, the knocking speed can be adjusted, and automatic knocking is realized to knock the rotating shaft into the rotor of the motor. After the rotating disk rotates, it can continuously knock continuously to increase the frequency of knocking, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the large-scale tight-fitting shaft tapping assembly tooling of the present invention;

[0024] Figure 2 for Figure 1 Right view of;

[0025] Figure 3 for Figure 1 Schematic diagram of the holding mechanism structure;

[0026] Figure 4 for Figure 3 Exploded diagram of the positioning component and reset component structure;

[0027] Figure 5 for Figure 4 A schematic diagram of the structure in another direction;

[0028] Figure 6 for Figure 4 A schematic diagram of the structure of the reset component part;

[0029] Figure 7 for Figure 1 Schematic diagram of the knocking mechanism structure;

[0030] Figure 8 for Figure 7 The exploded diagram of the knocking component structure;

[0031] Fig. 9 for Figure 8 A schematic diagram of the structure in another direction;

[0032] Fig.10 for Figure 8 Schematic diagram of the installation state of the connecting piece, the retaining block and the striking piece structure;

[0033] Fig.11 for Figure 8 Exploded view of the retaining block and striking piece structure.

[0034] In the figure: base 1, holding mechanism 2, knocking mechanism 3, motor 4, positioning part 5, knocking rod 6, movable column 7, support block 8, positioning assembly 9, reset assembly 10, placement area 11, lifting assembly 12, cylinder 13, positioning seat 14, rotating disk 15, knocking assembly 16, fixing member 17, fixing groove 18, first pin 19, mounting plate 20, reset plate 21, guide column 22, first spring 23, positioning sleeve 24, extension rod 25, through groove 26, first column 27, second column 28, recessed groove 29, first cross arm 30, second cross arm 31, Drum 32, bar hole 33, hinge shaft 34, connecting piece 35, knocking piece 36, rod 37, knocking part 38, ball head 39, vertical part 40, reinforcement part 41, mounting part 42, mounting hole 43, lip 44, mounting area 45, through hole 46, retaining block 47, second pin shaft 48, limit pin 49, pin hole 50, fan-shaped groove 51, square part 52, rotating part 53, square hole 54, hinge ring 55, protrusion 56, second spring 57, first small hole 58, second small hole 59, clamping part 60, pull rod 61, sliding hole 62, third spring 63. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] like Figures 1 to 11 As shown, the large-scale tight-fitting shaft knocking assembly tool of the present invention comprises a base 1, a holding mechanism 2 and a knocking mechanism 3. The holding mechanism 2 and the knocking mechanism 3 are both arranged on the base 1, and the holding mechanism 2 is used to place the motor 4 and fix the rotating shaft at the same time, so that the rotating shaft can be knocked into the rotor of the motor 4. The knocking mechanism 3 is used to knock the knocking rod 6 in the holding mechanism 2, so that the knocking rod 6 applies a knocking force to the rotating shaft, thereby knocking the rotating shaft into the rotor.

[0037] The holding mechanism 2 is composed of symmetrically arranged support blocks 8, positioning components 9 and reset components 10. A placement area 11 is formed between the symmetrically arranged support blocks 8. The positioning component 9 is arranged in the middle of the support block 8, and the reset component 10 is arranged at the upper end of the support block 8. The positioning component 9 is used to clamp the rotating shaft to fix its position, and the reset component 10 is used to restore the knocking rod 6 to its original position after being knocked, which is convenient for the next knocking.

[0038] The knocking mechanism 3 is installed on the base 1 through the lifting assembly 12. The lifting assembly 12 has a cylinder 13 and a positioning seat 14. The cylinder 13 is installed at the upper end of the positioning seat 14. The motor 4 is set in the middle of the positioning seat 14. The cylinder 13 passes through the positioning seat 14 and is connected to the motor 4. The lifting assembly 12 is used to lift the knocking mechanism 3 and change the position of the knocking mechanism 3.

[0039] The knocking mechanism 3 includes a motor 4, a rotating disk 15 and a plurality of knocking components 16. The motor 4 is arranged on the lifting component 12, the rotating disk 15 is connected to the motor 4, and the knocking components 16 are evenly arranged on the rotating disk 15, one end of the knocking components 16 is mounted on the rotating disk 15, and the other end is located above the reset component 10. The rotating disk 15 is provided with a fixing groove 18 for placing a fixing member 17, and the fixing member 17 is arranged in the fixing groove 18 through a first pin shaft 19.

[0040] The reset assembly 10 includes a mounting plate 20, a reset plate 21 and a knocking rod 6. The mounting plate 20 is arranged on the support block 8, and the reset plate 21 is located at the upper end of the mounting plate 20. Guide columns 22 are arranged at the four corners of the mounting plate 20, and a first spring 23 is sleeved on the guide column 22. The first spring 23 is located between the mounting plate 20 and the reset plate 21.

[0041] A positioning sleeve 24 is provided on the reset plate 21 , and the knocking rod 6 is arranged in the positioning sleeve 24 . An extension rod 25 is provided on the bottom surface of the reset plate 21 . A through groove 26 is provided in the middle of the mounting plate 20 , and the extension rod 25 is located in the through groove 26 .

[0042] The extension rod 25 is composed of a first column 27 and a second column 28. The bottom surface of the reset plate 21 has a recessed groove 29, the first column 27 is placed in the recessed groove 29, and the second body is located at the lower end of the first column 27, located in the through groove 26, but the length does not exceed the through groove 26. Only when the reset plate 21 is exerted with external force by the knocking rod 6, can it be moved downward, so that the second column 28 extends downward and the first spring 23 is compressed.

[0043] The through slot 26 has a first cross arm 30 and a second cross arm 31 . The upper ends of the first cross arm 30 and the second cross arm 31 are in contact with the reset plate 21 , and the lower ends are hinged in the through slot 26 .

[0044] At the same time, the upper ends of the first cross arm 30 and the second cross arm 31 are provided with a roller 32, and the roller 32 is arranged in the concave groove 29. When the reset plate 21 applies pressure to the first cross arm 30 and the second cross arm 31, the roller 32 can roll in the concave groove 29.

[0045] A strip hole 33 is provided in the middle of the first cross arm 30 and the second cross arm 31 , and a hinge shaft 34 is provided in the strip hole 33 .

[0046] The knocking assembly 16 includes a fixing member 17, a connecting member 35 and a knocking member 36. The fixing member 17 is installed on the rotating disk 15 through a first pin shaft 19. The connecting member 35 is connected to the fixing member 17. One end of the knocking member 36 is placed inside the connecting member 35, and the other end is located above the knocking rod 6.

[0047] The knocking rod 6 is composed of a rod portion 37 and a knocking portion 38 . The rod portion 37 is placed in the positioning sleeve 24 , and the knocking portion 38 is located at the lower end of the ball head portion 39 and can be knocked by the ball head portion 39 .

[0048] The knocking member 36 is composed of a ball head 39, a vertical portion 40, a reinforcement portion 41 and a mounting portion 42. The mounting portion 42 is placed in the mounting hole 43, and the ball head 39 is located at the upper end of the knocking rod 6. The knocking member 36 is driven to rotate by the rotating disk 15, so that the ball head 39 knocks the knocking portion 38, and then the knocking rod 6 presses the reset assembly 10, so that the first spring 23 is compressed, and at the same time, the first cross arm 30 and the second cross arm 31 cross and reduce the height, so that the extension rod 25 knocks the rotating shaft.

[0049] The fixing member 17 and the connecting member 35 are provided with a lip 44, and the lip 44 is used to connect and fix the fixing member 17 and the connecting member 35 to each other, and the connection can be made by bolts.

[0050] The interior of the connecting member 35 is hollowed out to form a mounting area 45. The mounting area 45 has a through hole 46 at the rear end. The through hole 46 is used for installing the knocking member 36, so that the mounting portion 42 of the knocking member 36 passes through the through hole 46, so that the mounting portion 42 can enter the mounting hole 43 of the retaining block 47 and be fixed.

[0051] A retaining block 47 is provided in the installation area 45, a mounting hole 43 is provided in the middle of the retaining block 47, second pins 48 are provided on both sides of the retaining block 47, and the retaining block 47 is connected to the connecting member 35 via the second pins 48. The retaining block 47 is connected to the connecting member 35 via the second pins 48, so that the retaining block 47 can be installed in the connecting member 35 and keep the position unchanged.

[0052] Symmetrical stop pins 49 are provided on both sides of the holding block 47, and a pin hole 50 for placing the stop pins 49 is provided on the holding block 47. A rotationally symmetrical fan-shaped groove 51 is provided on the mounting portion 42, and the front end of the stop pin 49 is located in the fan-shaped groove 51. The angle of the fan-shaped groove 51 is less than 90°, so that the angle of the knocking member 36 when rotating is less than 90°, and the fan-shaped groove 51 can limit the rotation angle of the knocking member 36.

[0053] A square portion 52 is provided on the mounting portion 42, and a rotating member 53 is provided on the square portion 52. The middle of the rotating member 53 is connected to the square portion 52 through a square hole 54. Hinge rings 55 are provided on both sides of the rotating member 53. A protrusion 56 is provided on the retaining block 47. A symmetrical second spring 57 is provided at the lower end of the protrusion 56. The lower ends of the second springs 57 are hingedly connected to the hinge rings 55 respectively.

[0054] A first small hole 58 is provided on the connecting member 35 , a second small hole 59 is provided on the retaining block 47 , the second pin shaft 48 passes through the first small hole 58 and is placed in the second small hole 59 , and then the retaining block 47 is fixed in the connecting member 35 .

[0055] The positioning assembly 9 is composed of a clamping member 60, a movable column 7 and a pull rod 61. A sliding hole 62 for sliding the movable column 7 is provided on the support block 8. A third spring 63 is sleeved on the movable column 7. The movable column 7 and one end of the pull rod 61 are connected to the clamping member 60. The clamping member 60 has a symmetrically arranged positioning portion 5, which is used to fix the rotating shaft, fix the rotating shaft in the middle, and keep the position unchanged.

[0056] When the motor 4 drives the rotating disk 15 to rotate, the rotating disk 15 drives the knocking mechanism 3 to rotate, so that the knocking member 36 in the knocking mechanism 3 applies an external force to the knocking rod 6, thereby causing the reset assembly 10 to apply an external force downward. At this time, the first spring 23 is compressed, the positioning assembly 9 clamps the rotating shaft, and the rotor of the motor 4 is placed at the lower end of the rotating shaft.

[0057] The knocking piece 36 strikes the knocking portion 38 , so that the ball head 39 is blocked by the knocking portion 38 and the mounting portion 42 rotates in the retaining block 47 . During the rotation, the fan-shaped groove 51 is blocked by the limit pin 49 , so that the knocking piece 36 is restricted in its rotation position.

[0058] One of the second springs 57 is stretched, and the other second spring 57 is compressed, so that both second springs 57 are stressed. After the ball head 39 is rotated, the ball head 39 will be separated from the knocking part 38, so that the elastic force of the second spring 57 pushes or pulls the rotating member 53 to reset, so that the knocking member 36 returns to the original position.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-scale tight-fitting shaft tapping assembly tool, characterized in that: include: A base, A holding mechanism is arranged on the base for fixing the motor and the rotating shaft, the holding mechanism is composed of a symmetrically arranged support block, a positioning component and a reset component, the positioning component is arranged in the middle of the support block, the reset component is arranged at the upper end of the support block, and A knocking mechanism for knocking a reset component, the knocking mechanism is installed on a base through a lifting component, the knocking mechanism has a motor, a rotating disk and multiple knocking components, the motor is arranged on the lifting component, the rotating disk is connected to the motor, the knocking components are evenly arranged on the rotating disk, one end of the knocking component is installed on the rotating disk, and the other end is located above the reset component, wherein The reset assembly comprises a mounting plate, a reset plate and a knocking rod, wherein the mounting plate is arranged on the supporting block, the reset plate is located at the upper end of the mounting plate, guide columns are arranged at the four corners of the mounting plate, a first spring is sleeved on the guide column, the first spring is located between the mounting plate and the reset plate, a positioning sleeve is arranged on the reset plate, the knocking rod is arranged in the positioning sleeve, an extension rod is arranged at the bottom of the reset plate, a through slot is arranged in the middle of the mounting plate, and the extension rod is located in the through slot; The knocking assembly comprises a fixing member, a connecting member and a knocking member, wherein the fixing member is mounted on the rotating disk via a first pin, the connecting member is connected to the fixing member, one end of the knocking member is placed inside the connecting member, and the other end is located above the knocking rod; The interior of the connecting piece is hollowed out to form a mounting area, and the rear end of the mounting area has a through hole; The installation area is provided with a retaining block, the middle of which is provided with a mounting hole, and second pins are provided on both sides of the retaining block, and the retaining block is connected to the connecting member through the second pins; The knocking piece is composed of a ball head, a vertical part, a reinforcement part and a mounting part, the ball head is connected to the mounting part through the vertical part and the reinforcement part in sequence, the mounting part is placed in the mounting hole, and the ball head is located at the upper end of the knocking rod; Symmetrical limit pins are provided on both sides of the retaining block, and a rotationally symmetrical fan-shaped groove is provided on the mounting portion, and the front end of the limit pin is located in the fan-shaped groove; A square portion is provided at the center of the end surface of the mounting portion, and a rotating part is provided on the square portion. The middle of the rotating part is connected to the square portion through a square hole, and hinge rings are provided on both sides of the rotating part. A protrusion is provided on the retaining block, and a symmetrical second spring is provided at the lower end of the protrusion. The lower ends of the second springs are respectively hingedly connected to the hinge rings.

2. The large tight-fit shaft tapping assembly tool according to claim 1 is characterized in that: The lifting assembly comprises a cylinder and a positioning seat, wherein the cylinder is mounted on the upper end of the positioning seat, the motor is arranged in the middle of the positioning seat, and the cylinder passes through the positioning seat and is connected with the motor.

3. The large tight-fit shaft tapping assembly tool according to claim 1 is characterized in that: The rotating disk is provided with a fixing groove for placing a fixing piece.

4. The large tight-fit shaft tapping assembly tool according to claim 1 is characterized in that: The angle of the fan-shaped groove is less than 90°.

5. The large tight-fit shaft tapping assembly tool according to claim 1 is characterized in that: The through slot has a first cross arm and a second cross arm, the upper ends of the first cross arm and the second cross arm are in contact with the reset plate, and the lower ends are hinged in the through slot.

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