Motor shell component assembling tool

Abstract

The utility model relates to a motor housing part assembling tool, which comprises a base and a first sliding table, the base is provided with a fixed area and a movable area, the fixed area is used for a motor rotor, and the movable area is used for fixing a motor housing; the first sliding table is fixedly arranged in the moving area, and a motor shell is installed on a sliding block of the first sliding table. According to the motor shell component assembling tool, the motor rotor is installed in the fixed area, the motor shell is installed in the moving area, the motor shell and the motor rotor are coaxially positioned, the motor shell is driven by the sliding table assembly to move in the X / Y / Z axis direction, and the motor shell and the motor rotor are in stable butt joint; the motor shell and the motor rotor are prevented from being collided and extruded in the installation process, and the assembly quality of the motor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature refrigeration technical field, in particular to a motor shell component assembly tooling. BACKGROUND

[0002] In recent years, with the wide application of infrared technology in military and civilian fields, such as military applications of infrared imaging, reconnaissance warning, early warning monitoring, guidance and medium-high altitude long-range air defense, and civilian fields of forest fire prevention and gas detection, infrared focal plane detector technology has developed rapidly. As a key part of the infrared detector Dewar refrigeration assembly (IDDCA assembly), the main function of the Stirling refrigerator is to provide the necessary low-temperature working environment for the infrared detector to reduce noise and improve the sensitivity and resolution of the detector, thereby enhancing the quality of infrared imaging.

[0003] The rotary integrated Stirling refrigerator, with its compact design, small size, light weight and low power consumption, has become an ideal choice to meet the needs of various tactical weapons and equipment and civilian fire prevention, gas detection and other fields for infrared detection.

[0004] However, in the design of the existing rotary integrated Stirling refrigerator, the motor rotor is usually assembled with the eccentric shaft, and the motor stator is combined with the motor shell and the positioning bearing to form a motor shell component. Because of the magnetic attraction between the motor stator and the motor rotor, the magnetic attraction will cause them to attract each other during overall assembly, increasing the assembly difficulty and possibly causing damage to the permanent magnet material in the rotor due to collision. SUMMARY

[0005] The utility model provides a motor shell component assembly tooling for solving at least one of the above technical problems.

[0006] The utility model provides a motor shell component assembly tooling, comprising:

[0007] The base is provided with a fixed area and a moving area, the fixed area is used for the motor rotor, and the moving area is used for fixing the motor shell;

[0008] The slide assembly is arranged on the moving area, the motor shell is installed on the slide assembly, and the slide assembly drives the motor shell to move in the X / Y / Z axis direction.

[0009] In one embodiment, the slide assembly comprises a first slide and a second slide, the first slide is fixedly arranged on the base, the second slide is fixedly arranged on the sliding block of the first slide, and the motor shell is installed on the sliding block of the second slide.

[0010] In one embodiment, the first sliding table is an X-axis sliding table, and the second sliding table is a Y / Z-axis sliding table.

[0011] In one embodiment, a support and a fixing cover are further included, the support is fixedly arranged on a sliding block of the second sliding table, and the fixing cover is operatively mounted on the support.

[0012] In one embodiment, a top surface of the fixing area is higher than a top surface of the moving area, a first positioning pin is arranged on a side surface of the fixing area close to the moving area, and a positioning hole is arranged on the support and operatively matched with the first positioning pin.

[0013] In one embodiment, a step is arranged on a side surface of the support and faces the fixing area.

[0014] In one embodiment, a second positioning pin is arranged on the fixing area and used for positioning the motor rotor.

[0015] In one embodiment, a connecting shaft is fixedly arranged on an end of each of the lead screws of the first and second sliding tables, and the connecting shaft is fixedly arranged with a knob assembly through a connecting transition piece.

[0016] In one embodiment, the knob assembly comprises a main rod, an extension rod, a ratchet wheel, a spring and an adjusting knob, one end of the main rod is fixedly connected with the transition piece, the other end of the main rod is integrally formed with the extension rod, the ratchet wheel and the adjusting knob are slidably arranged on the extension rod, the ratchet wheel is fixedly connected with the adjusting knob, the spring is arranged on the extension rod, one end of the spring is in contact with the ratchet wheel, the other end of the spring is fixedly arranged on the extension rod, the spring is located between the ratchet wheel and the adjusting knob, and the ratchet wheel is in toothed engagement with an end surface of the main rod.

[0017] In one embodiment, an adjusting ring is sleeved on the extension rod, the adjusting ring is fixed on the main rod through a pin, and the spring is located between the ratchet wheel and the adjusting ring.

[0018] Compared with the prior art, the motor rotor is installed in the fixing area, the motor shell is installed in the moving area, the motor shell and the motor rotor are coaxially positioned, the motor shell is moved in the X / Y / Z-axis direction by the sliding table assembly, the motor shell and the motor rotor are smoothly butted, bumping and extrusion of the motor shell and the motor rotor during installation are avoided, and the assembly quality of the motor is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be described in more detail below based on the embodiments and with reference to the drawings.

[0020] Figure 1 is a structural schematic diagram of a refrigerating machine semi-finished product;

[0021] Figure 2 is a structural schematic diagram of a motor shell component;

[0022] Figure 3 is a schematic diagram of the overall structure of the assembly tool in an assembled state;

[0023] Figure 4 is a schematic diagram of the overall structure of the assembly tool;

[0024] Figure 5 is a schematic diagram of the structure of the support in the assembly tool;

[0025] Figure 6 is a schematic diagram of the structure of the fixed cover in the assembly tool;

[0026] Figure 7 is an exploded view of the connection state of the knob assembly and the first sliding table in the assembly tool;

[0027] Figure 8 is a schematic diagram of the structure of the second sliding table in the assembly tool;

[0028] Figure 9 is a sectional view of the knob assembly in the assembly tool;

[0029] Figure 10 is a schematic diagram of the alignment state of the refrigerating machine semi-finished product and the motor shell component during installation;

[0030] Figure 11 is a schematic diagram of the installed state of the refrigerating machine semi-finished product and the motor shell component.

[0031] Reference signs:

[0032] 10 - base; 11 - fixed area; 12 - moving area; 13 - first positioning pin; 14 - second positioning pin;

[0033] 21 - first sliding table; 22 - second sliding table; 23 - support; 24 - fixed cover; 25 - positioning hole; 26 - step; 27 - connecting shaft; 28 - connecting transition piece;

[0034] 30 - knob assembly; 31 - main rod; 32 - extension rod; 33 - ratchet; 34 - spring; 35 - adjusting knob; 36 - adjusting ring;

[0035] 41 - refrigerating machine semi-finished product; 32 - motor shell component. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] Before assembling the motor housing, first assemble the other parts of the refrigeration unit before installing the motor rotor, and then install the motor rotor onto the eccentric shaft, such as... Figure 1 As shown, a semi-finished refrigeration unit 41 is formed; simultaneously, the motor housing, motor stator, and positioning bearing are assembled to form the motor housing component 42, as shown. Figure 2 As shown.

[0038] like Figure 3 , Figure 4 As shown, this utility model provides an assembly fixture for a motor housing component, including a base 10 and a first slide 21. The base 10 is provided with a fixed area 11 and a movable area 12. The fixed area 11 is used to install and fix the motor rotor, i.e., the semi-finished refrigeration unit 41, to ensure that the rotor can remain stable during the assembly of the motor housing. The movable area 12 is used to fix the motor housing, i.e., the motor housing component 42, and a slide assembly is provided in this area. The motor housing is mounted on the slide assembly, and the slide assembly drives the motor housing to move the first slide 21 in the X / Y / Z axis directions. This allows the housing to move precisely in the X / Y / Z axis directions. This design not only ensures the coaxial positioning between the motor housing and the rotor, but also makes the docking between the two more stable, effectively avoiding the bumping and squeezing problems that may occur in the traditional assembly process.

[0039] By adopting the above technical solution, the assembly fixture greatly improves the assembly quality of the motor. The first slide 21 drives the motor housing to move horizontally, achieving precise and stable docking between the motor housing and the rotor, avoiding collisions and squeezing between the motor housing and the rotor during installation, thus improving the assembly quality of the motor.

[0040] Specifically, the slide assembly includes a first slide 21 and a second slide 22. The first slide 21 is fixedly mounted on the base 10, and the second slide 22 is fixedly mounted on the slider of the first slide 21. The motor housing is mounted on the slider of the second slide 22. In this embodiment, the first slide 21 is an X-axis slide, and the second slide 22 is a Y / Z-axis slide, which realizes the position adjustment of the motor housing along the X, Y, and Z axes. This facilitates precise and stable docking between the motor housing and the rotor to achieve the optimal docking position. It can effectively prevent collisions and squeezing between the motor housing and the rotor during the docking process, thereby improving the quality and reliability of the final product.

[0041] Furthermore, such as Figures 3-6As shown, the assembly tool further comprises a support 23 and a fixing cover 24, the support 23 is fixedly arranged on the sliding block of the second sliding table 22, and the fixing cover 24 is installed on the support 23 in a bolted manner. In use, the motor housing is placed on the support 23, and then the motor housing is fixed through the fixing cover 24, so that the motor housing can be stably fixed. The first sliding table 21 and the second sliding table 22 are combined to adjust the position of the motor housing, so that the motor housing is more accurately connected with the motor rotor.

[0042] Specifically, the top surface of the fixed area 11 is arranged to be higher than the top surface of the moving area 12. In this embodiment, the motor rotor is fixed on the fixed area 11, and the first sliding table 21 and the second sliding table 22 are arranged on the moving area 12 for adjusting the coordinate position of the motor housing. Therefore, the fixed area 11 needs to be arranged to be higher than the moving area 12, so that the motor housing and the motor rotor are accurately aligned. Further, the first positioning pin 13 is arranged on the side surface of the fixed area 11 close to the moving area 12, and the support 23 is provided with a positioning hole 25. The height of the first positioning pin 13 is not more than 3mm. During the process of adjusting the positions of the first sliding table 21 and the second sliding table 22 to align the motor housing and the motor rotor, the positioning hole 25 and the first positioning pin 13 are operatively matched, so that the motor housing and the motor rotor can be positioned in advance through the positioning hole 25 and the first positioning pin 13 before being connected, thereby avoiding the problem of bumping and extrusion of the motor housing and the motor rotor during the accurate alignment process.

[0043] Further, as shown in Figure 5 The bottom surface of the support 23 is provided with a step 26, which is arranged towards the fixed area 11. The step 26 increases the moving distance of the support 23 towards the fixed area 11, and is compatible with more motor models, and has wider applicability.

[0044] Preferably, the second positioning pin 14 is arranged on the fixed area 11 for positioning the motor rotor. The height of the second positioning pin 14 protruding out is not less than 8mm, which avoids the movement of the motor rotor during the connection of the motor rotor and the motor housing, and provides a safe limit for the connection of the motor rotor and the motor housing.

[0045] Preferably, as shown in Figure 7 、 Figure 8 、 Figure 9As shown, the screw end of the first sliding table 21 and the second sliding table 22 is fixedly provided with a connecting shaft 27, the connecting shaft 27 is fixedly connected with a knob assembly 30 through a connecting transition piece 28, the knob assembly 30 comprises a main rod 31, an extension rod 32, a ratchet wheel 33, a spring 34 and an adjusting knob 35, one end of the main rod 31 is fixedly connected with the connecting transition piece 28, the other end is integrally formed with the extension rod 32, the ratchet wheel 33 and the adjusting knob 35 are sequentially and slidably arranged on the extension rod 32, the ratchet wheel 33 is fixedly connected with the adjusting knob 35, and the fixed connection can be realized through a shell or a connecting rod, synchronous rotation of the ratchet wheel 33 and the adjusting knob 35 is realized, the spring 34 is further arranged on the extension rod 32, one end of the spring 34 is in contact with the ratchet wheel 33, the other end is fixedly arranged on the extension rod 32, and the spring 34 is located between the ratchet wheel 33 and the adjusting knob 35. And the end face of the ratchet wheel 33 and the main rod 31 are matched through teeth, the ratchet wheel 33 is pressed on the end face of the main rod 31 through the elastic force of the spring 34, so that the ratchet wheel 33 and the main rod 31 generate pressure when the adjusting knob 35 rotates.

[0046] Further, the extension rod 32 is sleeved with an adjusting ring, the adjusting ring is fixed on the main rod 31 through a pin, the spring 34 is located between the ratchet wheel 33 and the adjusting ring, and is used for positioning the spring 34, and the compression amount of the spring 34 can be adjusted.

[0047] In the adjusting process, when the first sliding table 21 and the second sliding table 22 need to be adjusted, the adjusting knob 35 is rotated, the ratchet wheel 33 drives the screw of the first sliding table 21 and the second sliding table 22 to rotate through the tooth matching with the main rod 31, so that the position adjustment of the sliding block on the first sliding table 21 and the second sliding table 22 is realized, until the motor rotor and the motor shell are butt-jointed, when the motor rotor and the motor shell are correctly butt-jointed, or the motor rotor and the motor shell are misaligned during butt-jointing, the first positioning pin 13 is not matched with the positioning hole 25, then the first positioning pin 13 abuts against the support 23, at this time, rotating the adjusting knob 35 again will generate resistance, the pressure of the spring 34 on the ratchet wheel 33 and the main rod 31 is not enough to overcome the torsion of the adjusting knob 35, then the spring 34 is compressed, the ratchet wheel 33 and the main rod 31 relatively rotate, a "click" alarm sound is emitted, and the operator performs the next assembly work or continues to adjust the position; the compression amount of the spring 34 is adjusted by adjusting the position of the adjusting ring on the extension rod 32, and then the pressure between the ratchet wheel 33 and the main rod 31 is adjusted, so as to control the required torsion for the ratchet wheel 33 and the main rod 31 to be separated.

[0048] The working principle of the utility model:

[0049] Firstly, the motor rotor is installed on the eccentric shaft to form a refrigerator semi-finished product 41, the refrigerator semi-finished product 41 is installed on the fixed area 11 and positioned by the second positioning pin 14; meanwhile, the motor shell, the motor stator and the positioning bearing are assembled to form a motor shell component 42, and the motor shell component 42 is installed on the support 23;

[0050] The first slide table 21 and the second slide table 22 are adjusted to align the motor shell component 42 with the refrigerator semi-finished product 41, then the first slide table 21 is adjusted to make the motor shell component 42 close to the refrigerator semi-finished product 41, and the position precision of the motor shell component 42 is limited by the first positioning pin 13 and the positioning hole 25, and the first positioning pin 13 improves the positioning precision of the motor shell component 42;

[0051] When the first positioning pin 13 and the positioning hole 25 cannot be smoothly inserted, the adjusting knob 35 emits a "click" alarm sound, indicating that the positions of the motor shell component 42 and the refrigerator semi-finished product 41 are not aligned, the position of the second slide table 22 is adjusted appropriately until the concentric effect is achieved, the positioning hole 25 can be smoothly and coaxially inserted and extended with the first positioning pin 13, and the calibration of the tool positioning is completed, at this time, the scale line on the Y-axis adjusting rod of the second slide table 22 is recorded as the zero position, after the tool positioning calibration is completed, the two first positioning pins 13 are removed, so that the motor shell component 42 and the refrigerator semi-finished product 41 can be smoothly assembled to the final position, as shown in Figure 10 .

[0052] When the motor shell component 42 and the refrigerator semi-finished product 41 are positioned, the first slide table 21 is continuously adjusted to make the motor shell component 42 abut against the refrigerator semi-finished product 41, when the adjusting knob 35 emits a "click" alarm sound, it indicates that the positions of the motor shell component 42 and the refrigerator semi-finished product 41 are aligned, the motor shell component 42 and the refrigerator semi-finished product 41 are assembled, and after the assembly is completed, the refrigerator is disassembled, as shown in Figure 11 .

[0053] The above tool is used to rotate the refrigerator, which reduces the operation difficulty, improves the consistency of process operation, reduces the knocking of the permanent magnet structure on the motor rotor and the damage of parts, and ensures the service life of the refrigerator.

[0054] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electric machine housing component assembly tool characterized by, include: A base, wherein a fixed area and a movable area are provided on the base, the fixed area is used for the motor rotor, and the movable area is used for fixing the motor housing; A slide assembly is disposed in the moving area, and a motor housing is mounted on the slide assembly. The slide assembly drives the motor housing to move in the X / Y / Z axis directions.

2. The motor housing component assembly tooling of claim 1, wherein, The slide assembly includes a first slide and a second slide. The first slide is fixedly mounted on the base, and the second slide is fixedly mounted on the slider of the first slide. The motor housing is mounted on the slider of the second slide.

3. The motor housing component assembly tooling of claim 2, wherein, The first slide is an X-axis slide, and the second slide is a Y / Z-axis slide.

4. The motor housing component assembly tooling of claim 2, wherein, It also includes a support and a fixing cover, wherein the support is fixedly mounted on the slider of the second slide, and the fixing cover is operably mounted on the support.

5. The assembly fixture for motor housing components according to claim 4, characterized in that, The top surface of the fixed area is higher than the top surface of the movable area. A first positioning pin is provided on the side of the fixed area near the movable area. A positioning hole is provided on the support. The positioning hole is operablely engaged with the first positioning pin.

6. The assembly fixture for motor housing components according to claim 4, characterized in that, The support has a step on its side, which faces the fixing area.

7. The assembly fixture for motor housing components according to claim 1, characterized in that, The fixed area is provided with a second positioning pin for positioning the motor rotor.

8. The assembly fixture for motor housing components according to claim 2, characterized in that, Both the first slide and the second slide have a connecting shaft fixedly installed at the end of the lead screw, and the connecting shaft is fixedly installed with a knob assembly through a connecting transition piece.

9. The assembly fixture for motor housing components according to claim 8, characterized in that, The knob assembly includes a main rod, an extension rod, a ratchet, a spring, and an adjustment knob. One end of the main rod is fixedly connected to the transition piece, and the other end of the main rod is integrally formed with an extension rod. A ratchet and an adjustment knob are slidably disposed on the extension rod. The ratchet is fixedly connected to the adjustment knob. A spring is disposed on the extension rod. One end of the spring contacts the ratchet, and the other end of the spring is fixedly disposed on the extension rod. The spring is located between the ratchet and the adjustment knob. The ratchet is geared to the end face of the main rod.

10. The assembly fixture for motor housing components according to claim 9, characterized in that, An adjusting ring is fitted onto the extension rod, and the adjusting ring is fixed to the main rod by a pin. The spring is located between the ratchet and the adjusting ring.

Images