Assembly fixture for duct pump motor

Abstract

This invention discloses a duct pump motor assembly fixture, which includes a moving mechanism and a coil fixing component and a stator fixing component disposed on the moving mechanism. The coil fixing component and the stator fixing component are positioned close to or far apart from each other on the moving mechanism. Compared with the prior art, this invention, through the moving mechanism and the coil fixing component and stator fixing component disposed on the moving mechanism, enables the coil to be stably installed in the inner cavity of the stator, completing the mechanical assembly of the stator and the coil. The assembly is highly stable and accurate, and there is no deviation in the installation position. This effectively solves the problems of time-consuming, labor-intensive, and inaccurate manual assembly, thereby improving the performance of the assembled motor and benefiting production.

Description

Technical Field

[0001] This invention relates to the field of motor assembly technology, specifically to tooling for assembling duct pump motors. Background Technology

[0002] A catheter pump is a mechanical pump device that partially or completely replaces the heart's pumping function and has broad clinical application prospects. The motor of the catheter pump, as a crucial component of the artificial heart pump, directly determines the performance of the catheter pump.

[0003] Currently, the traditional method for assembling the stator and coil of a duct pump motor is manual assembly. Specifically, the coil is manually filled into the inner cavity of the silicon steel sheet stator. However, manual assembly is not only time-consuming and labor-intensive, but also lacks precision. Often, the coil and stator are not in a concentric position, which affects the motor's performance and is detrimental to production. Therefore, this invention proposes a tooling for assembling duct pump motors that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a tooling for assembling a duct pump motor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a conduit pump motor assembly fixture, including a moving mechanism and a coil fixing assembly and a stator fixing assembly disposed on the moving mechanism, wherein the coil fixing assembly and the stator fixing assembly are close to or far from each other on the moving mechanism.

[0006] As a preferred embodiment of the present invention, the coil fixing assembly includes a mandrel seat, one end of which is provided with a connecting post, and one end of which is provided with a coil sleeve rod.

[0007] As a preferred embodiment of the present invention, a groove is provided on the surface of the connecting post near the coil sleeve rod, and the groove is in the shape of a circular ring.

[0008] As a preferred technical solution of the present invention, the stator fixing assembly includes a cup groove plate, and a stator groove is formed in the middle of the upper surface of the cup groove plate, and the stator groove is triangular in shape.

[0009] As a preferred technical solution of the present invention, a stator pressure frame is movably installed on one side of the top of the cup groove plate, and a pressure roller is rotatably installed on the top of the stator pressure frame. The stator pressure frame is movably hinged to the cup groove plate, and a torsion spring is connected to one end of the stator pressure frame at the hinge. The other end of the torsion spring is connected to the cup groove plate.

[0010] As a preferred technical solution of the present invention, it further includes a lifting and fine-tuning structure, which includes an adjusting seat, an adjusting plate and a mandrel seat plate, wherein the mandrel seat is installed on the side of the mandrel seat plate facing the stator fixing assembly.

[0011] As a preferred embodiment of the present invention, two sets of guide rods are installed between the mandrel seat plate and the cup groove plate, and both sets of guide rods movably pass through the mandrel seat plate and the cup groove plate.

[0012] As a preferred technical solution of the present invention, the moving mechanism includes a tooling base and a guide rail frame fixedly mounted on the tooling base. A first slider is fixed on the lower surface of the lifting and fine-tuning structure, and a second slider is fixed on the lower surface of the cup groove plate. The first slider and the second slider are both movably sleeved on the same guide rail frame, and the guide rail frame is fixed on the tooling base.

[0013] As a preferred technical solution of the present invention, a horizontally arranged support is fixedly installed on the vertical inner wall of one side of the adjusting plate. A first threaded rod is rotatably installed on the upper surface of the support. A first threaded sleeve is threadedly connected to the outer surface of the first threaded rod. A first rotating rod is fixedly installed at the upper end of the first threaded rod. A first movable block is fixedly connected to one side of the first threaded sleeve. The end of the first movable block away from the first threaded sleeve is fixedly connected to the spindle seat plate.

[0014] As a preferred technical solution of the present invention, a second threaded rod is rotatably installed inside the adjusting seat, a second threaded sleeve is threadedly connected to the outer surface of the second threaded rod, a second movable block is fixedly connected to the upper surface of the second threaded sleeve, and the upper end of the second movable block is fixedly connected to the adjusting plate, and a second rotating rod is fixedly connected to the front end of the second threaded rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The assembly fixture for the duct pump motor of the present invention, through a moving mechanism and a coil fixing component and a stator fixing component set on the moving mechanism, enables the coil to be stably installed in the inner cavity of the stator, and can complete the mechanical assembly of the stator and the coil. The assembly is highly stable and has high installation accuracy, and there will be no deviation in the installation position. It effectively solves the problems of time-consuming, labor-intensive and low-precision manual assembly, thereby improving the performance of the assembled motor and benefiting production.

[0017] Other features and advantages of the present invention will be described in detail in the following specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2This is a front view of the present invention;

[0020] Figure 3 This is a side view of the present invention;

[0021] Figure 4 This is a schematic diagram of the mandrel seat of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the lifting and fine-tuning stage of the present invention;

[0023] In the diagram: 1. Tooling base; 2. Guide rail frame; 3. First slider; 4. Second slider; 5. Cup groove plate; 6. Lifting fine-tuning platform; 61. Adjusting seat; 62. Adjusting vertical plate; 63. Mandrel seat plate; 601. Support; 602. First threaded rod; 603. First threaded sleeve; 604. Second threaded rod; 605. Second threaded sleeve; 606. First movable block; 607. Second movable block; 7. Guide rod; 8. Mandrel seat; 9. Connecting column; 10. Coil sleeve rod; 11. Groove; 12. Stator pressure frame; 13. Stator slot; 14. First rotating rod; 15. Second rotating rod; 16. Pressure roller; 17. Torsion spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] Please see Figure 1-5This invention provides a technical solution: a tooling for assembling a duct pump motor, including a lifting and fine-tuning structure 6, a moving mechanism, and a coil fixing assembly and a stator fixing assembly disposed on the moving mechanism. The coil fixing assembly and the stator fixing assembly are positioned close to or far from each other on the moving mechanism. The coil fixing assembly includes a mandrel seat 8, one end of which is provided with a connecting post 9, and one end of which is provided with a coil sleeve rod 10. A groove 11 is formed on the surface of the connecting post 9 near the coil sleeve rod 10. The groove 11 is circular in shape. By utilizing the groove 11 on the connecting post 9, one end of the coil installed on the coil sleeve rod 10 can be hidden in the groove 11 during assembly, thereby allowing the stator to be fixed. When assembling with the coil, a small section of the coil is hidden inside the groove 11 outside the stator to ensure that the coil can fill the stator cavity and prevent the stator from having no magnetic field at both ends. The lifting and fine-tuning structure 6 includes an adjusting seat 61, an adjusting plate 62, and a mandrel seat plate 63. The mandrel seat 8 is installed on the side of the mandrel seat plate 63 facing the stator fixing assembly. The mandrel seat 8 is inserted into the mandrel seat plate 63, and the two adopt a separable structure design to facilitate the removal of the mandrel seat 8 from the mandrel seat plate 63 when needed. Two sets of guide rods 7 are installed between the mandrel seat plate 63 and the cup groove plate 5. Both sets of guide rods 7 move through the mandrel seat plate 63 and the cup groove plate 5.

[0028] The moving mechanism includes a tooling base 1 and a guide rail frame 2 fixedly mounted on the tooling base 1. A first slider 3 is fixed on the lower surface of the lifting and fine-tuning structure 6, and a second slider 4 is fixed on the lower surface of the cup groove plate 5. The first slider 3 and the second slider 4 are both movably sleeved on the same guide rail frame 2, and the guide rail frame 2 is fixed on the tooling base 1.

[0029] In this invention, the stator fixing assembly includes a cup groove plate 5, and a stator groove 13 is provided in the middle of the upper surface of the cup groove plate 5. The stator groove 13 is triangular in shape, and the stator groove 13 can facilitate the installation of the stator.

[0030] In this invention, a stator pressure frame 12 is movably installed on one side of the top of the cup groove plate 5, and a pressure roller 16 is rotatably installed on the top of the stator pressure frame 12. The stator pressure frame 12 is movably hinged to the cup groove plate 5, and a torsion spring 17 is connected to one end of the stator pressure frame 12 at the hinge. The other end of the torsion spring 17 is connected to the cup groove plate 5. By setting the stator pressure frame 12, the stator installed on the stator groove 13 can be pressed tightly, and the torsion spring 17 can further improve the pressing effect.

[0031] In this invention, a horizontally arranged support 601 is fixedly installed on the vertical inner wall of one side of the adjusting plate 62. A first threaded rod 602 is rotatably installed on the upper surface of the support 601. A first threaded sleeve 603 is threadedly connected to the outer surface of the first threaded rod 602. A first rotating rod 14 is fixedly installed at the upper end of the first threaded rod 602. A first movable block 606 is fixedly connected to one side of the first threaded sleeve 603. The end of the first movable block 606 away from the first threaded sleeve 603 is fixedly connected to the spindle seat plate 63.

[0032] In this invention, a second threaded rod 604 is rotatably mounted inside the adjusting seat 61, a second threaded sleeve 605 is threadedly connected to the outer surface of the second threaded rod 604, a second movable block 607 is fixedly connected to the upper surface of the second threaded sleeve 605, and the upper end of the second movable block 607 is fixedly connected to the adjusting plate 62. A second rotating rod 15 is fixedly connected to the front end of the second threaded rod 604.

[0033] It should be noted that during use, the coil is sleeved on the coil sleeve rod 10 of the mandrel seat 8, with one end of the coil hidden in the groove 11 of the connecting post 9. Then, the stator pressure frame 12 is pulled up to install the stator on the stator groove 13 of the cup plate 5. The stator pressure frame 12 is then released. Under the force of gravity and the restoring force of the torsion spring 17, the stator pressure frame 12 can drive the pressure roller 16 to press the stator tightly, thus completing the installation of the stator. Then, the second slider 4 is pushed horizontally, which can drive the cup plate 5 and the stator to move along the direction of the guide rod 7 towards the mandrel seat 8, so that the coil can be stably installed in the inner cavity of the stator. This completes the mechanical assembly of the stator and the coil, with strong assembly stability and high installation accuracy. There will be no deviation in the installation position, effectively solving the problems of time-consuming, labor-intensive, and inaccurate manual assembly, thereby improving the performance of the motor after assembly. The effect is beneficial to production. When the position of the coil needs to be fine-tuned, only the first rotating rod 14 or the second rotating rod 15 needs to be rotated. The first rotating rod 14 can drive the first threaded rod 602 to rotate. Under the limiting action of the first movable block 606, the first threaded sleeve 603 can move up and down slightly, thereby driving the mandrel seat plate 63 to move up and down slightly. Similarly, the rotation of the second rotating rod 15 can drive the rotation of the second threaded rod 604. Under the limiting action of the second movable block 607, the second threaded sleeve 605 can move back and forth slightly, thereby driving the adjusting plate 62 to move back and forth slightly. This achieves fine-tuning of the up and down and back and forth position of the mandrel seat 8. The fine-tuning size is only within 10 micrometers. The up and down and back and forth position adjustment can be completed using only the gap between the guide rod 7 and the guide rod hole, which can meet the position fine-tuning requirements between the coil and the stator.

[0034] It should also be noted that the separable structure design of the mandrel seat 8 and the mandrel seat plate 63 allows the stator and coil to be removed as a whole after the glue is applied, which facilitates the potting operation of the next stator (therefore, this tooling can be used with multiple mandrel seats 8 for rotation operation), saving the time of waiting for the glue to cure and improving efficiency.

[0035] Furthermore, when the stator, coil, and mandrel seat 8 are removed as a whole and placed vertically, the glue inside the hollow cup cavity of the stator flows fully under the action of gravity, reducing the probability of internal cavities in the glue. If the amount of glue is insufficient, glue can be added at the top gap to ensure sufficient glue and no cavities, thereby improving the potting quality.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A catheter pump motor assembly tooling, characterized by, The utility model provides a coil fixing assembly and a stator fixing assembly are arranged on a moving mechanism, and the coil fixing assembly and the stator fixing assembly are close to or far away from each other on the moving mechanism, the coil fixing assembly comprises a mandrel seat (8), one end of the mandrel seat (8) is equipped with a connecting column (9), one end of the connecting column (9) is equipped with a coil sleeve rod (10), a recess (11) is formed in the surface of the connecting column (9) close to the coil sleeve rod (10), and the recess (11) is in the shape of a ring structure, The stator fixing assembly comprises a cup groove plate (5), a stator groove (13) is formed in the middle of the upper surface of the cup groove plate (5), and the stator groove (13) is in the shape of a triangular structure, Further comprising a lifting fine adjustment structure (6), the lifting fine adjustment structure (6) comprises an adjusting seat (61), an adjusting vertical plate (62) and a mandrel seat plate (63), the mandrel seat (8) is installed on the side of the mandrel seat plate (63) facing the stator fixing assembly, Two groups of guide rods (7) are installed between the mandrel seat plate (63) and the cup groove plate (5), and the two groups of guide rods (7) are movably penetrated through the mandrel seat plate (63) and the cup groove plate (5).

2. The catheter pump motor assembly tooling of claim 1, wherein, A stator pressing frame (12) is movably installed on one side of the top of the cup groove plate (5), a pressing wheel (16) is rotatably installed on the top of the stator pressing frame (12), the stator pressing frame (12) is movably hinged to the cup groove plate (5), one end of the stator pressing frame (12) is connected with a torsional spring (17) at the hinged position, and the other end of the torsional spring (17) is connected with the cup groove plate (5).

3. The catheter pump motor assembly tooling of claim 1, wherein, The moving mechanism comprises a tool seat (1) and a guide rail frame (2) fixedly arranged on the tool seat (1), a first sliding block (3) is fixed to the lower surface of the lifting fine adjustment structure (6), a second sliding block (4) is fixed to the lower surface of the cup groove plate (5), the first sliding block (3) and the second sliding block (4) are movably sleeved on the same guide rail frame (2), and the guide rail frame (2) is fixed to the tool seat (1).

4. The catheter pump motor assembly tooling of claim 1, wherein, A horizontally arranged supporting seat (601) is fixedly installed on the vertical inner wall of one side of the adjusting vertical plate (62), a first threaded rod (602) is rotatably installed on the upper surface of the supporting seat (601), a first threaded sleeve (603) is threadedly connected to the outer surface of the first threaded rod (602), a first rotating rod (14) is fixedly installed on the upper end of the first threaded rod (602), a first movable block (606) is fixedly connected to one side of the first threaded sleeve (603), and the end of the first movable block (606) away from the first threaded sleeve (603) is fixedly connected with the mandrel seat plate (63).

5. The catheter pump motor assembly tooling of claim 1, wherein, A second threaded rod (604) is rotatably installed in the adjusting seat (61), a second threaded sleeve (605) is threadedly connected to the outer surface of the second threaded rod (604), a second movable block (607) is fixedly connected to the upper surface of the second threaded sleeve (605), the upper end of the second movable block (607) is fixedly connected with the adjusting vertical plate (62), and a second rotating rod (15) is fixedly connected to the front end of the second threaded rod (604).

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