High-precision shaft entering jig

Abstract

The high-precision shaft entering jig comprises a base and a rotor centering mechanism installed at the upper end of the base, a spring a is arranged in the base, and the outer wall of the upper end of the spring a is fixedly connected with a movable column so that the spring a can be pushed to be folded and unfolded under the action of external force. A positioning column is arranged in the rotor centering mechanism, a rotating handle is fixedly connected to the outer wall of the upper end of the rotor centering mechanism, a shaftless rotor is arranged on the upper side of the base, a rotating shaft is arranged in the shaftless rotor, the upper side of the rotating shaft is sleeved with a connector pressing head, and the rotating shaft is fixed through a mounting positioning groove, a fixing column, a movable plate and a spring b. When an external driver moves upwards, the spring b shrinks to store energy, and then when the external driver moves upwards, the spring b lacks downward pressure, starts to reset and pushes the pressure head to move upwards, so that the operation of automatically popping up the pressure head is completed, the situation that the pressure head is manually taken out is avoided, the labor intensity is reduced, and the production efficiency and the operation convenience are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to shaft insertion jigs, and specifically relates to a high-precision shaft insertion jig. Background Art

[0002] A shaft insertion jig is a fixture used to fix and position axial parts. It is used during machining, assembly or measurement. It can ensure that the parts remain in a stable position during machining, thereby improving machining accuracy and efficiency. For products with shaft rotors, the jig is used to press the shaft into a shaftless rotor. However, after the pressure head is flattened, when the rotor is taken out, the flattened pressure head will be stuck inside the handle and needs to be poured out in the opposite direction or pushed out with other tools. Utility Model Content

[0003] The utility model aims to provide a high-precision shaft insertion fixture to solve the problem raised in the above background technology that after the pressure head is flattened, when the rotor is taken out, the flattened pressure head will be stuck inside the rotating handle and needs to be poured out in the opposite direction.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision shaft insertion fixture, comprising a base and a rotor centering mechanism installed on the upper end of the base;

[0005] A spring a is arranged inside the base;

[0006] The outer wall of the upper end of the spring a is fixedly connected with a movable column to push the spring a to perform a retracting and extending operation under the action of an external force;

[0007] A positioning column is arranged inside the rotor centering mechanism, a rotating handle is fixedly connected to the outer wall of the upper end of the rotor centering mechanism, a shaftless rotor is arranged on the upper side of the base, a rotating shaft is arranged inside the shaftless rotor, and a joint pressure head is sleeved on the upper side of the rotating shaft;

[0008] A movable plate is sleeved between the left and right sides of the rotating shaft, a downwardly opening positioning groove is opened on the lower outer wall of the pressure head, a fixing column is fixedly connected to the upper outer wall of the movable plate to clamp with the positioning groove, and a spring b is fixedly connected to the lower outer wall of the movable plate to contract after being subjected to downward pressure from the pressure head.

[0009] Preferably, a sliding sleeve is provided on the right side of the spring b, and a sliding plate is transmission-connected to the upper side of the sliding sleeve to limit the moving direction of the spring b.

[0010] Preferably, a positioning block is fixedly connected to the uppermost side of the circular outer wall of the slide plate to limit the maximum upward movement range of the movable plate, and a connecting foot is fixedly connected to the lowermost side of the circular outer wall of the sliding sleeve to be fixedly connected to the circular inner wall of the positioning column.

[0011] Preferably, the slide plate can move up and down inside the slide sleeve, and the movable plate, spring b and connecting foot are fixedly connected by welding.

[0012] Preferably, a sliding seat is fixedly connected to the outer wall of the lower end of the base, and when the rotary handle rotates clockwise, it drives the positioning column to move upward to abut against and limit the position of the shaftless rotor.

[0013] Preferably, a through opening for limiting the position of the movable column is opened inside the base, and the through opening is slidably fitted with the rotating shaft.

[0014] Compared with the prior art, the utility model provides a high-precision shaft insertion fixture, which has the following beneficial effects:

[0015] By installing the positioning groove, the fixed column, the movable plate and the spring b, when the pressure head is driven downward by the external driver, the positioning groove on the lower side of the pressure head and the fixed column will be engaged and push the movable plate downward, so that the spring b will contract to store energy. When the pressure head and the rotary handle are flattened, when the external driver moves upward, the spring b lacks downward pressure and starts to reset, pushing the movable plate upward. In the process of moving upward, the movable plate will push the pressure head upward, thereby completing the automatic pop-up operation of the pressure head, avoiding the situation of manually taking out the pressure head, and avoiding the situation of the pressure head being lost when pouring the pressure head out in the opposite direction, reducing labor intensity, improving production efficiency, realizing automation, and improving production efficiency and operating convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of a high-precision shaft-entry fixture structure.

[0017] Figure 2 This is a structural schematic diagram of a high-precision shaft-entry fixture of the utility model in a non-working state.

[0018] Figure 3 It is a schematic diagram of the partial structure of the front cross section of the rotating shaft area of ​​the utility model.

[0019] Figure 4 It is a schematic diagram of the partial structure of the front cross section of the rotating shaft area of ​​the utility model.

[0020] Figure 5 It is a schematic diagram of the local structure of the sliding sleeve area of ​​the utility model.

[0021] In the figure: 1. spring a; 2. sliding seat; 3. movable column; 4. base; 5. positioning column; 6. shaftless rotor; 7. rotating shaft; 8. rotor centering mechanism; 9. rotating handle; 10. pressure head; 11. positioning block; 12. positioning groove; 13. fixed column; 14. movable plate; 15. slide plate; 16. spring b; 17. sliding sleeve; 18. connecting foot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-3 A high-precision shaft insertion fixture shown includes a base 4 and a rotor centering mechanism 8 installed on the upper end of the base 4;

[0024] A spring a1 is arranged inside the base 4;

[0025] The outer wall of the upper end of the spring a1 is fixedly connected with a movable column 3 to push the spring a1 to perform a retracting and extending operation under the action of an external force;

[0026] A positioning column 5 is arranged inside the rotor centering mechanism 8, a rotary handle 9 is fixedly connected to the outer wall of the upper end of the rotor centering mechanism 8, a shaftless rotor 6 is arranged on the upper side of the base 4, a rotating shaft 7 is arranged inside the shaftless rotor 6, and a joint pressure head 10 is sleeved on the upper side of the rotating shaft 7. First, the shaftless rotor 6 is placed on the base 4, then the rotor centering mechanism 8 is placed into the inner hole of the shaftless rotor 6, and the rotary handle 9 is rotated clockwise to move the positioning column 5 upward to limit the position of the shaftless rotor 6, then the rotating shaft 7 is inserted into the interior of the shaftless rotor 6, and the pressure head 10 is sleeved on the rotating shaft 7, and the press is started, the press moves downward to flatten the pressure head 10, then the rotor centering mechanism 8 is loosened by rotating the rotary handle 9 counterclockwise, and the shaftless rotor 6 can be taken out;

[0027] A movable plate 14 is sleeved between the left and right sides of the rotating shaft 7, and a downwardly opening positioning groove 12 is opened on the outer wall of the lower end of the pressing head 10. A fixing column 13 is fixedly connected to the outer wall of the upper end of the movable plate 14 so as to be clamped with the positioning groove 12. A spring b16 is fixedly connected to the outer wall of the lower end of the movable plate 14 so as to shrink after receiving the downward pressure of the pressing head 10. When the pressing head 10 moves downward, the positioning groove 12 on the lower side will be clamped with the fixed column 13, and push the spring b16 on the lower side of the movable plate 14 to shrink. After the pressing head 10 moves up, the spring b16 lacks the downward pressure to reset and lift the pressing head 10.

[0028] like Figure 3 and Figure 4 As shown, a sliding sleeve 17 is provided on the right side of the spring b16, and a sliding plate 15 is transmission-connected to the upper side of the sliding sleeve 17 to limit the moving direction of the spring b16.

[0029] When the spring b16 is retracted or extended, the retracted or extended position of the spring b16 can be limited by the sliding sleeve 17 and the sliding plate 15 to prevent the spring b16 from contacting the rotating shaft 7 .

[0030] like Figure 4 and Figure 5 As shown, the uppermost side of the circular outer wall of the slide plate 15 is fixedly connected with a positioning block 11 to limit the maximum upward movement range of the movable plate 14, and the lowermost side of the circular outer wall of the sliding sleeve 17 is fixedly connected with a connecting foot 18 to be fixedly connected to the circular inner wall of the positioning column 5. The slide plate 15 can move up and down inside the sliding sleeve 17, and the movable plate 14, the spring b16 and the connecting foot 18 are fixedly connected by welding.

[0031] When the movable plate 14 abuts against the positioning block 11 during the process of moving up and down, the movable plate 14 reaches the maximum movement range, avoiding the situation where the position of the pressing head 10 is pushed out too much, and when the pressing head 10 moves downward, the slide plate 15 will slide downward into the interior of the sliding sleeve 17, avoiding the situation where the normal downward movement of the pressing head 10 is affected.

[0032] like Figure 1 and Figure 2 As shown, the outer wall of the lower end of the base 4 is fixedly connected with a sliding seat 2. When the handle 9 rotates clockwise, it will drive the positioning column 5 to move up to abut against the position of the shaftless rotor 6 to limit the position. A through hole for limiting the position of the movable column 3 is opened inside the base 4, and the through hole and the rotating shaft 7 are slidably matched.

[0033] The position of the fixture is limited by the sliding seat 2 to prevent the sliding seat 2 from moving when the press is working later. The handle 9 controls the fixing and loosening operations of the rotor centering mechanism 8 on the shaftless rotor 6 by rotating in clockwise and counterclockwise directions.

[0034] The implementation principle of this embodiment is as follows: first, place the shaftless rotor 6 on the base 4, then, place the rotor centering mechanism 8 into the inner hole of the shaftless rotor 6, and rotate the handle 9 clockwise to move the positioning column 5 upward to limit the position of the shaftless rotor 6, then insert the shaft 7 into the shaftless rotor 6, and put the pressure head 10 on the shaft 7, and start the press, the press moves downward to flatten the pressure head 10, then, by rotating the handle 9 counterclockwise, the rotor centering mechanism 8 is released, and the shaftless rotor 6 can be taken out. When the pressure head 10 moves downward, the positioning groove 12 on the lower side is engaged with the fixed column 13, and the spring b16 on the lower side of the movable plate 14 is pushed to contract and perform the function. After the pressure head 10 moves upward, the spring b16 lacks the downward pressure to reset and lift the pressure head 10.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision shaft insertion fixture, comprising a base (4) and a rotor centering mechanism (8) mounted on the upper end of the base (4); A spring a (1) is arranged inside the base (4); The upper outer wall of the spring a (1) is fixedly connected with a movable column (3) so as to push the spring a (1) to perform a retracting and extending operation under the action of an external force; A positioning column (5) is provided inside the rotor centering mechanism (8); a rotating handle (9) is fixedly connected to the outer wall of the upper end of the rotor centering mechanism (8); a shaftless rotor (6) is provided on the upper side of the base (4); a rotating shaft (7) is provided inside the shaftless rotor (6); and a joint pressure head (10) is provided on the upper side of the rotating shaft (7); Features: A movable plate (14) is sleeved between the left and right sides of the rotating shaft (7); a positioning groove (12) opening downward is formed on the lower outer wall of the pressure head (10); a fixing column (13) is fixedly connected to the upper outer wall of the movable plate (14) so ​​as to be clamped with the positioning groove (12); and a spring b (16) is fixedly connected to the lower outer wall of the movable plate (14) so ​​as to contract after receiving downward pressure from the pressure head (10).

2. A high-precision shaft insertion jig according to claim 1, characterized in that: A sliding sleeve (17) is arranged on the right side of the spring b (16), and a sliding plate (15) is transmission-connected to the upper side of the sliding sleeve (17) to limit the moving direction of the spring b (16).

3. A high-precision shaft insertion jig according to claim 2, characterized in that: A positioning block (11) is fixedly connected to the uppermost side of the circular outer wall of the slide plate (15) to limit the maximum upward movement range of the movable plate (14), and a connecting foot (18) is fixedly connected to the lowermost side of the circular outer wall of the sliding sleeve (17) to be fixedly connected to the circular inner wall of the positioning column (5).

4. A high-precision shaft insertion jig according to claim 2, characterized in that: The slide plate (15) can move up and down inside the slide sleeve (17), and the movable plate (14), the spring b (16) and the connecting foot (18) are fixedly connected by welding.

5. A high-precision shaft insertion jig according to claim 1, characterized in that: The outer wall of the lower end of the base (4) is fixedly connected to a sliding seat (2), and when the rotary handle (9) rotates clockwise, it drives the positioning column (5) to move upward to abut against and limit the position of the shaftless rotor (6).

6. A high-precision shaft insertion jig according to claim 1, characterized in that: A through opening for limiting the position of the movable column (3) is provided inside the base (4), and the through opening is slidably fitted with the rotating shaft (7).

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