Starting motor iron core assembling device

Abstract

The utility model relates to a starting motor iron core assembling device which comprises a working table, a positioning disc used for placing a core cylinder and an I-shaped steel sheet is arranged on the top face of the working table, and a groove matched with an iron core in appearance is formed in the top face of the positioning disc. A lower pressing plate is arranged above the positioning disc, and the lower pressing plate is in sliding connection with the workbench in the vertical direction; a driving part used for driving the lower pressing plate to slide on the workbench is arranged between the lower pressing plate and the workbench. The problems that in the prior art, when I-shaped steel pieces are manually inserted into a core cylinder, a large amount of physical strength needs to be consumed, and assembly is not in place due to long-time assembly work are solved.

Description

Technical Field

[0001] This utility model relates to the field of production equipment technology, specifically to a starter motor core assembly device. Background Technology

[0002] A starter motor, also known as a starter motor, is a device that converts electrical energy from a battery into mechanical energy to drive the flywheel of an engine, thereby starting the engine. The iron core is one of the core components of the starter motor, typically made of stacked silicon steel sheets. These sheets are cut, trimmed, and stacked to form a cylindrical or cylindrical shape, used to fix the coil or magnet and provide the magnetic circuit. It not only serves a fixing function but is also a good conductor of magnetism, characterized by high resistivity and low eddy current losses.

[0003] In existing technologies, when some iron cores have complex shapes and are difficult to manufacture as a whole using a single process, the iron core is usually broken down into multiple components for manufacturing, which makes it easier to meet design requirements. For example, for iron cores with irregular shapes or internal structures, manufacturing the core cylinder and I-beams separately and then assembling them ensures that each component accurately meets design requirements.

[0004] To ensure a stable connection between the I-beam and the core cylinder, the protrusions on the I-beam and the recesses on the core cylinder are typically interference-fitted to achieve a tight fit. However, manually pressing the I-beam into the core cylinder requires a significant amount of physical effort, and prolonged assembly work can lead to incomplete assembly. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a starter motor core assembly device to solve the problem that in the prior art, when manually inserting the I-beam steel sheet into the core cylinder, a lot of physical strength is required and the assembly work is carried out for a long time, resulting in incomplete assembly.

[0006] This utility model is achieved through the following technical solution:

[0007] A starter motor core assembly device includes a workbench, on the top surface of which is a positioning plate for placing the core cylinder and I-beam sheets, and the top surface of the positioning plate is provided with a groove adapted to the shape of the core.

[0008] A lower pressure plate is provided above the positioning disk, and the lower pressure plate is slidably connected to the worktable in the vertical direction;

[0009] A drive unit is provided between the lower pressure plate and the worktable to drive the lower pressure plate to slide on the worktable.

[0010] Furthermore, the top surface of the lower pressure plate is provided with a feed hole that penetrates the lower pressure plate and is adapted to the I-beam, and the I-beam can pass through the feed hole and fall into the corresponding position in the groove.

[0011] A wedge block is slidably connected to the bottom surface of the lower pressure plate in the horizontal direction. The inclined surface of the wedge block is located on the side of the lower pressure plate facing the positioning disk, and the feed hole is located on the movement trajectory of the wedge block.

[0012] Furthermore, a strip groove is provided on the bottom surface of the lower pressure plate. One end of the strip groove is connected to the feed hole, and the other end extends horizontally through the side wall of the lower pressure plate.

[0013] The wedge block is slidably fitted into the strip groove, and the tip of the wedge block faces the feed hole.

[0014] Furthermore, the depth of the groove is equal to the thickness of the I-beam, the bottom plane of the wedge block is coplanar with the bottom plane of the lower pressure plate, and the thickness of the I-beam is less than the distance between the bottom plane and the top plane of the wedge block.

[0015] Furthermore, a first telescopic rod is provided on the side wall of the lower pressure plate, with the fixed end of the first telescopic rod fixedly connected to the lower pressure plate and the movable end fixedly connected to the wedge block.

[0016] Furthermore, a baffle is provided in the bottom opening of the feed hole. One end of the baffle is embedded in the strip groove and extends in the length direction of the strip groove. The two sides of the baffle are respectively inserted into the two side walls of the strip groove and are slidably engaged.

[0017] Furthermore, the wedge-shaped block is provided with two parallel racks and a gear that meshes with the two racks at the opposite end of the feed hole. The two ends of the gear are respectively inserted into the two side walls of the strip groove and rotate in cooperation.

[0018] One of the racks is fixedly connected to the wedge block, and the other rack is fixedly connected to one end of the stop bar.

[0019] Furthermore, the positioning disk and the worktable are rotatably connected around the axis of the positioning disk, and multiple grooves are provided and evenly arranged around the circumference of the positioning disk.

[0020] The lower pressure plate is located on the rotation trajectory of multiple grooves.

[0021] Furthermore, a support plate adapted to the groove is provided in the groove, and the support plate slides in the groove in the vertical direction;

[0022] When the bottom surface of the pallet abuts against the bottom surface of the groove, the top surface of the I-beam sheet and the top surface of the positioning plate are coplanar;

[0023] The bottom surface of the groove has a through hole that penetrates the positioning disc.

[0024] Furthermore, a second telescopic rod is provided on the bottom surface of the workbench. The fixed end of the second telescopic rod is fixedly connected to the workbench, and the movable end extends vertically upward through the workbench. The second telescopic rod is located on the rotation trajectory of the through hole.

[0025] The beneficial effects of this utility model are as follows:

[0026] This starter motor core assembly device features a groove on a positioning plate that matches the shape of the core. The core cylinder can be pre-placed into the groove. During assembly, the I-beam is aligned with the corresponding position in the groove and lowered. A drive unit moves a lower pressure plate downwards to abut against the I-beam, causing it to embed itself into the groove. The protrusions on the I-beam tightly fit into the recesses on the core cylinder, achieving the purpose of assembling the core. The pressure plate replaces the need for manual contact with the I-beam, reducing workload, and allows for a more stable downward movement of the I-beam to the target position.

[0027] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0029] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0030] Figure 3 This is a three-dimensional structural diagram of the lower pressure plate in Embodiment 1 of this utility model;

[0031] Figure 4 This is a three-dimensional structural diagram of the positioning disk in Embodiment 1 of this utility model;

[0032] Figure 5 This is a three-dimensional structural diagram of the iron core in Embodiment 1 of this utility model;

[0033] Figure 6 for Figure 3 Enlarged view of point B in the middle;

[0034] Figure 7 This is a schematic diagram of the planar structure of Embodiment 2 of this utility model;

[0035] Figure 8 This is a three-dimensional structural diagram of the lower pressure plate in Embodiment 2 of this utility model;

[0036] Figure 9 for Figure 8 Enlarged view of point B in the middle;

[0037] Figure 10 for Figure 7 Sectional view of AA;

[0038] Figure 11 for Figure 10 Enlarged view of point C (State 1);

[0039] Figure 12 for Figure 10 Enlarged view of point C (State 2);

[0040] Figure 13 for Figure 10 Enlarged view of point C (State 3).

[0041] In the diagram: 1. Workbench; 2. Positioning plate; 21. Groove; 211. Through hole; 22. Support plate; 3. Lower pressure plate; 31. Feed hole; 32. Wedge block; 33. Strip groove; 34. First telescopic rod; 35. Stop bar; 41. Gear; 42. Rack; 5. Second telescopic rod; 61. Core cylinder; 62. I-beam sheet. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0047] Example 1

[0048] Please see Figure 1-6 This utility model provides a technical solution: a starting motor core assembly device, including a workbench 1, a positioning plate 2 for placing a core cylinder 61 and an I-beam steel sheet 62 is provided on the top surface of the workbench 1, and a groove 21 adapted to the shape of the core is provided on the top surface of the positioning plate 2.

[0049] A lower pressure plate 3 is provided above the positioning disk 2, and the lower pressure plate 3 is slidably connected to the worktable 1 in the vertical direction;

[0050] A drive unit is provided between the lower pressure plate 3 and the worktable 1 to drive the lower pressure plate 3 to slide on the worktable 1.

[0051] In this design, a groove 21 adapted to the shape of the iron core is made on the positioning plate 2. The core cylinder 61 can be pre-placed into the groove 21. During assembly, the I-beam 62 is aligned with the corresponding position in the groove 21 and placed down. The driving unit drives the lower pressure plate 3 to move downward and abut against the I-beam 62, causing the I-beam 62 to move downward and embed into the groove 21. The protrusions on the I-beam 62 are tightly inserted into the recesses on the core cylinder 61, achieving the purpose of assembling the iron core. The pressure plate replaces the manual contact of the workers to press the I-beam 62, reducing the workload. The lower pressure plate 3 can also push the I-beam 62 downward more smoothly, moving it to the target position.

[0052] The core tube 61 has a pin hole for assembly positioning, and a matching pin is provided in the groove 21 at the corresponding position, which can restrict the core tube 61 from moving horizontally in the groove 21, and can quickly position and install the core tube 61 when it is placed in the groove 21.

[0053] The groove 21 is adapted to the shape of the iron core. The iron core is composed of a core cylinder 61 and multiple I-beams 62 spliced ​​together. Therefore, the side wall of the groove 21 is provided with notches corresponding to the multiple I-beams 62, so that multiple I-beams 62 can be inserted at the same time. Moreover, the outer dimensions of the lower pressure plate 3 are larger than the dimensions of the groove 21. The lower pressure plate 3 can completely cover the groove 21. Therefore, when the lower pressure plate 3 moves downward, it can push multiple I-beams 62 into the groove 21, thereby improving work efficiency.

[0054] Furthermore, since the I-beam 62 needs to be tightly connected to the core cylinder 61, the protruding part of the I-beam 62 is difficult to slide freely on the recessed part of the core cylinder 61. Therefore, external force is required to drive the I-beam 62 to slide on the core cylinder 61.

[0055] Furthermore, two vertical columns are fixedly connected to the top surface of the workbench 1. The tops of the two columns pass through the lower pressure plate 3 and are slidably engaged, so that the lower pressure plate 3 can only slide vertically on the workbench 1.

[0056] The drive unit can be selected from devices such as pneumatic cylinders, hydraulic cylinders, and electric telescopic rods. These components provide the power to move the downward pressure plate 3, reducing the workload of relevant technicians. Pneumatic cylinders, hydraulic cylinders, and electric telescopic rods are all existing mature technologies, so they will not be described in detail here.

[0057] In use, initially, there is a gap between the lower pressure plate 3 and the positioning plate 2. The pin hole on the core cylinder 61 can be aligned with the pin in the groove 21 through the gap and then lowered to position and install the core cylinder 61. The I-beam 62 is aligned with one of the recesses on the side wall of the groove 21 and pressed down appropriately so that a small part of the bottom of the I-beam 62 is embedded in the groove 21, restricting the displacement and tilting of the I-beam 62. Then, the lower pressure plate 3 is driven to slide down through the drive unit so that the lower pressure plate 3 abuts against the I-beam 62, pushing the I-beam 62 downward until it is tightly connected with the core cylinder 61.

[0058] In this embodiment: the top surface of the lower pressure plate 3 is provided with a feed hole 31 that penetrates the lower pressure plate 3 and is adapted to the I-beam 62, and the I-beam 62 can pass through the feed hole 31 and fall into the corresponding position in the groove 21.

[0059] The bottom surface of the lower pressure plate 3 is slidably connected to a wedge block 32 in the horizontal direction. The inclined surface of the wedge block 32 is located on the side of the lower pressure plate 3 facing the positioning disk 2, and the feed hole 31 is located on the movement trajectory of the wedge block 32.

[0060] In this plan, such as Figure 3As shown, by providing a feeding hole 31 on the lower pressure plate 3, the I-beam steel sheet 62 can be easily fed into the groove 21 through the feeding hole 31, eliminating the need for feeding through the gap between the lower pressure plate 3 and the positioning plate 2, thus reducing the difficulty of the work. The wedge block 32 is used to provide a downward pushing force to the I-beam steel sheet 62, so that the I-beam steel sheet 62 can be smoothly embedded into the groove 21 for assembly.

[0061] Among them, the I-beam 62 has an irregular structure, and the feed hole 31 is adapted to the shape of the I-beam 62, which can guide the I-beam 62 so that the I-beam 62 can only move in the vertical direction. When the feed hole 31 is aligned with the corresponding notch on the side wall of the groove 21, the I-beam 62 can be successfully put in.

[0062] In use, the I-beam 62 is aligned with the top opening of the feed hole 31 and lowered. Under the action of gravity, the I-beam 62 moves downward until the bottom of the I-beam 62 contacts the core cylinder 61. Under the action of mutual friction, the protruding part of the I-beam 62 is restricted from being embedded into the recess of the core cylinder 61. The wedge block 32 is driven to slide on the lower pressure plate 3 and approach the I-beam 62, so that the inclined surface of the wedge block 32 contacts and abuts against one edge of the top surface of the I-beam 62, providing a downward pushing force to the I-beam 62. The pushing force is greater than the friction between the core cylinder 61 and the I-beam 62, so that the protruding part of the I-beam 62 can be smoothly inserted into the recess of the core cylinder 61, completing the assembly work.

[0063] In this embodiment: a strip groove 33 is provided on the bottom surface of the lower pressure plate 3. One end of the strip groove 33 is connected to the feed hole 31, and the other end extends horizontally through the side wall of the lower pressure plate 3.

[0064] The wedge block 32 is slidably fitted in the strip groove 33, and the tip of the wedge block 32 faces the feed hole 31.

[0065] In this plan, such as Figure 6 As shown, protrusions are provided on both sides of the wedge block 32, and the two protrusions are respectively inserted into the two side walls of the strip groove 33 and slide along the length of the strip groove 33; the top surface of the wedge block 32 abuts against the top plane of the strip groove 33, so that the wedge block 32 can only slide in the strip groove 33 along the length of the strip groove 33, thereby smoothly pushing the I-beam 62 to move downward.

[0066] In this embodiment: the depth of the groove 21 is equal to the thickness of the I-beam 62, the bottom plane of the wedge block 32 is coplanar with the bottom plane of the lower pressure plate 3, and the thickness of the I-beam 62 is less than the distance between the bottom plane and the top plane of the wedge block 32.

[0067] In this design, when the bottom surface of the lower pressure plate 3 is in contact with the top surface of the positioning plate 2, and the bottom surface of the wedge block 32 is in contact with the top surface of the I-beam 62, the I-beam 62 is fully embedded in the groove 21, meaning the I-beam 62 and the core cylinder 61 are fully assembled. Therefore, when the lower pressure plate 3 moves downwards to contact and abut against the positioning plate 2, it is only necessary to drive the wedge block 32 until its bottom surface is in contact with the I-beam 62 to complete the assembly of the I-beam 62, making the operation simple and convenient.

[0068] In this embodiment: a first telescopic rod 34 is provided on the side wall of the lower pressure plate 3. The fixed end of the first telescopic rod 34 is fixedly connected to the lower pressure plate 3, and the movable end is fixedly connected to the wedge block 32.

[0069] In this scheme, the first telescopic rod 34 can be selected as a cylinder (such as Qianhua Zhike QGB50*25). The piston rod inside the cylinder slides out to provide power to the wedge block 32, so that the wedge block 32 slides in the strip groove 33, which is converted into a downward thrust to the I-beam 62.

[0070] The magnitude of the thrust applied by the cylinder to the wedge block 32 can be changed by controlling the air pressure changes within the cylinder, thereby adjusting the thrust magnitude and reducing the probability of the I-beam 62 being crushed and damaged. Furthermore, the cylinder is a mature existing technology, so its working principle and structural features will not be elaborated upon here.

[0071] In this embodiment: a baffle 35 is provided in the bottom opening of the feed hole 31. One end of the baffle 35 is embedded in the strip groove 33 and extends in the length direction of the strip groove 33. The two sides of the baffle 35 are respectively inserted into the two side walls of the strip groove 33 and are slidably engaged.

[0072] In this design, the stop bar 35 is used to block the lower opening of the feed hole 31, restricting the I-beam sheet 62 from sliding out of the feed hole 31. The bottom surface of the stop bar 35 is coplanar with the bottom surface of the wedge block 32. The thickness of the stop bar 35 is smaller than the distance between the top and bottom surfaces of the wedge block 32, ensuring that when the I-beam sheet 62 contacts and abuts the stop bar 35, the inclined surface of the wedge block 32 still abuts against the edge of the top surface of the I-beam sheet 62. Figure 6 As shown.

[0073] Due to production and processing requirements, it is usually necessary to grind and chamfer the edges of the outer surface of the I-beam sheet 62, such as... Figure 5 As shown, when multiple I-beams 62 are stacked overlapping within the feed hole 31, a gap exists between the edges of the contact surfaces of two adjacent I-beams 62, allowing the tip of the wedge block 32 to be smoothly inserted into this gap. Furthermore, when the first I-beam 62 contacts and abuts against the stop bar 35, the tip of the wedge block 32 aligns with the gap between the first and second I-beams 62.

[0074] In use, the baffle 35 can be moved and extended into the feed hole 31 to block the bottom opening of the feed hole 31, so that multiple I-beams 62 can be stacked in the feed hole 31. When it is necessary to put into the groove 21, the wedge block 32 is moved so that the tip of the wedge block 32 is inserted into the gap between the first I-beam 62 and the second I-beam 62 at the bottom of the feed hole 31. The top surface of the wedge block 32 is in contact with the bottom surface of the second I-beam 62, which restricts the second I-beam 62 and the I-beam 62 above it from moving downward. The baffle 35 is moved to open the bottom opening of the feed hole 31, and the first I-beam 62 moves downward under the action of gravity until it contacts and abuts the core cylinder 61.

[0075] Slide the wedge block 32 so that it approaches and abuts against the first I-beam 62, providing thrust for the first I-beam 62 to move downwards until it is fully embedded in the groove 21. Move the stop bar 35 again to block the opening of the feed hole 31, removing the wedge block 32 from the feed hole 31 and eliminating its obstruction of the second I-beam 62. The second I-beam 62 moves downwards under gravity until it abuts against the stop bar 35, facilitating the second assembly.

[0076] In this embodiment: the positioning disk 2 and the worktable 1 are rotatably connected with the axis of the positioning disk 2 as the center, and multiple grooves 21 are provided and are evenly arranged around the circumference of the positioning disk 2;

[0077] The lower pressure plate 3 is located on the rotation trajectory of the multiple grooves 21.

[0078] In this plan, such as Figure 1 As shown, by rotating the positioning plate 2 to the worktable 1, the corresponding position of the groove 21 on the lower pressure plate 3 can be changed, eliminating the obstruction of the groove 21 by the lower pressure plate 3, so as to facilitate the removal of the assembled iron core or the insertion of the core cylinder 61 into the groove 21.

[0079] In this embodiment: a support plate 22 adapted to the groove 21 is provided in the groove 21, and the support plate 22 and the groove 21 slide in a vertical direction;

[0080] When the bottom surface of the support plate 22 abuts against the bottom surface of the groove 21, the top surface of the I-beam 62 is coplanar with the top surface of the positioning plate 2.

[0081] The bottom surface of the groove 21 has a through hole 211 that penetrates the positioning disk 2.

[0082] In this design, the support plate 22 supports the iron core. By sliding the support plate 22 into the groove 21, the support plate 22 can slide upwards within the groove 21 to push out the iron core, facilitating its removal. A through hole 211 is provided on the bottom surface of the groove 21 to promote airflow on both the inner and outer sides of the bottom of the groove 21, allowing the support plate 22 to slide smoothly. Simultaneously, the support plate 22 can be pushed upwards through the through hole 211 using a pry bar or similar tool, thereby disassembling and removing the iron core.

[0083] In this embodiment: a second telescopic rod 5 is provided on the bottom surface of the workbench 1. The fixed end of the second telescopic rod 5 is fixedly connected to the workbench 1, and the movable end extends vertically upward through the workbench 1. The second telescopic rod 5 is located on the rotation trajectory of the through hole 211.

[0084] In this scheme, the second telescopic rod 5 can be selected as a cylinder (such as Qianhua Zhike QGB50*25). By inserting the piston rod of the cylinder into the through hole 211, when the through hole 211 rotates to be opposite to the piston rod, the piston rod slides out and impacts the support plate 22 upward, pushing the iron core on the support plate 22 out.

[0085] Example 2

[0086] Please see Figure 6-12 The difference from Example 1 is as follows:

[0087] In this embodiment: the wedge block 32 is provided with two parallel racks 42 and a gear 41 that meshes with the two racks 42 at the opposite end of the feed hole 31. The two ends of the gear 41 are respectively inserted into the two side walls of the strip groove 33 and rotate in cooperation.

[0088] One of the racks 42 is fixedly connected to the wedge block 32, and the other rack 42 is fixedly connected to one end of the stop bar 35.

[0089] In this design, the end of the baffle 35 facing the feed hole 31 is pointed, and the baffle 35 and the wedge block 32 can slide simultaneously in the strip groove 33 in three states:

[0090] State 1, such as Figure 11 As shown, a large section of the baffle 35 extends into the feed hole 31, blocking the bottom opening of the feed hole 31, and the wedge block 32 is completely retracted into the strip groove 33.

[0091] State 2, such as Figure 12 As shown, the tip of the baffle 35 and the tip of the wedge block 32 are located inside the feed hole 31, and the tip of the baffle 35 and the tip of the wedge block 32 are on the same vertical line.

[0092] State 3, such as Figure 13 As shown, the baffle 35 is fully retracted into the strip groove 33, and the wedge block 32 is fully extended into the feed hole 31.

[0093] The transmission structure composed of two racks 42 and gears 41 links the sliding of the wedge block 32 with the sliding of the stop bar 35. That is, when the wedge block 32 slides in the strip groove 33, the transmission structure drives the stop bar 35 to slide in the opposite direction at the same speed.

[0094] Additionally, when the tip of the wedge block 32 just extends into the gap between the edges of the two I-beams 62 (i.e., state two), in this state, when the wedge block 32 moves closer to the first I-beam 62, the stop bar 35 automatically moves away from the first I-beam 62, allowing the first I-beam 62 to move smoothly downwards; if the wedge block 32 moves away from the first I-beam 62, the stop bar 35 automatically moves to block the opening of the feed hole 31.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A starting motor core assembly device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a positioning plate (2) for placing the core cylinder (61) and the I-beam sheet (62) on its top surface. The positioning plate (2) has a groove (21) on its top surface that matches the shape of the iron core. A lower pressure plate (3) is provided above the positioning plate (2), and the lower pressure plate (3) is slidably connected to the worktable (1) in the vertical direction; A drive unit is provided between the lower pressure plate (3) and the worktable (1) for driving the lower pressure plate (3) to slide on the worktable (1).

2. The starter motor core assembly device according to claim 1, characterized in that: The top surface of the lower pressure plate (3) is provided with a feed hole (31) that penetrates the lower pressure plate (3) and is adapted to the I-beam (62), and the I-beam (62) can pass through the feed hole (31) and fall into the corresponding position in the groove (21); The bottom surface of the lower pressure plate (3) is slidably connected to a wedge block (32) in the horizontal direction. The inclined surface of the wedge block (32) is located on the side of the lower pressure plate (3) facing the positioning disk (2), and the feed hole (31) is located on the movement trajectory of the wedge block (32).

3. The starter motor core assembly device according to claim 2, characterized in that: The bottom surface of the lower pressure plate (3) is provided with a strip groove (33), one end of which is connected to the feed hole (31), and the other end extends horizontally through the side wall of the lower pressure plate (3). The wedge block (32) is slidably fitted in the strip groove (33), and the tip of the wedge block (32) faces the feed hole (31).

4. The starter motor core assembly device according to claim 3, characterized in that: The depth of the groove (21) is equal to the thickness of the I-beam (62), the bottom plane of the wedge block (32) is coplanar with the bottom plane of the lower pressure plate (3), and the thickness of the I-beam (62) is less than the distance between the bottom plane and the top plane of the wedge block (32).

5. The starter motor core assembly device according to claim 3, characterized in that: The lower pressure plate (3) is provided with a first telescopic rod (34) on its side wall. The fixed end of the first telescopic rod (34) is fixedly connected to the lower pressure plate (3), and the movable end is fixedly connected to the wedge block (32).

6. The starter motor core assembly device according to claim 3, characterized in that: A baffle (35) is provided in the bottom opening of the feed hole (31). One end of the baffle (35) is embedded in the strip groove (33) and extends in the length direction of the strip groove (33). The two sides of the baffle (35) are respectively inserted into the two side walls of the strip groove (33) and slide together.

7. The starter motor core assembly device according to claim 6, characterized in that: The wedge block (32) is provided with two parallel racks (42) and a gear (41) that meshes with the two racks (42) at the opposite end of the feed hole (31). The two ends of the gear (41) are respectively inserted into the two side walls of the strip groove (33) and rotated together. One of the racks (42) is fixedly connected to the wedge block (32), and the other rack (42) is fixedly connected to one end of the stop bar (35).

8. The starter motor core assembly device according to claim 1, characterized in that: The positioning disk (2) and the worktable (1) are rotatably connected with the axis of the positioning disk (2) as the center. Multiple grooves (21) are provided and are evenly arranged around the circumference of the positioning disk (2). The lower pressure plate (3) is located on the rotation trajectory of multiple grooves (21).

9. The starter motor core assembly device according to claim 8, characterized in that: The groove (21) is provided with a support plate (22) that is adapted to the groove (21), and the support plate (22) and the groove (21) slide in a vertical direction; When the bottom surface of the pallet (22) abuts against the bottom surface of the groove (21), the top surface of the I-beam (62) is coplanar with the top surface of the positioning plate (2); The bottom surface of the groove (21) is provided with a through hole (211) that penetrates the positioning disk (2).

10. The starter motor core assembly device according to claim 9, characterized in that: A second telescopic rod (5) is provided on the bottom surface of the workbench (1). The fixed end of the second telescopic rod (5) is fixedly connected to the workbench (1), and the movable end extends vertically upward through the workbench (1). The second telescopic rod (5) is located on the rotation trajectory of the through hole (211).

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