Cam line pressing structure

Abstract

The utility model discloses a cam line pressing structure, and relates to the technical field of winding equipment, the cam line pressing structure comprises a cam core shaft, a cam, a torsion spring and a shaft check ring, the cam core shaft is vertically connected to the end face of one side of a winding limiting sleeve in the direction parallel to the central axis of the winding limiting sleeve; the cam is sleeved on the cam mandrel; the torsion spring is arranged on the cam mandrel in a sleeving mode and located between the cam and the winding limiting sleeve, a containing groove suitable for containing the torsion spring is formed in the side, facing the winding limiting sleeve, of the cam, one end of the torsion spring is limited to the end face of the winding limiting sleeve, and the other end of the torsion spring is limited to the side wall of the containing groove; the shaft check ring is fixedly clamped to the side, away from the torsional spring, of the cam mandrel, and the cam is limited and tightly attached to the torsional spring through the shaft check ring. The cam is suitable for being rotationally pressed on the outer circumferential face of the winding ring spacer bush so that the end of the winding wire can be pressed on the contact face of the winding ring spacer bush and the cam. The cam line pressing structure is simple in connection and convenient to assemble, and gap adjustment can be carried out according to winding lines with different diameters.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coil manufacturing equipment technical field, specifically relates to a cam line pressing structure. BACKGROUND

[0002] The motor winding is connected by a certain number of coils according to a certain rule, the coil is embedded in the core slot, and then the installation of the slot wedge is realized through the pressing slot.

[0003] When winding the coil, the end of the wire needs to be fixed, and then the winding operation is carried out through the winding mechanism. Previously, manual operation was used, and the wire end was clamped and fixed. If the operation is improper, the wire may be damaged, or the problem of line drop may occur if the compression is too loose. This manual operation mode not only has low work efficiency and high work intensity, but also cannot guarantee the yield rate, and it is difficult to meet the needs of customers and the market. INVENTION CONTENTS

[0004] Therefore, in order to solve the defects of the above-mentioned technology, the utility model provides a cam line pressing structure.

[0005] The first purpose of the utility model is to provide a cam line pressing structure installed on one side of a winding limiting sleeve and a winding ring spacer sleeve, the winding limiting sleeve and the winding ring spacer sleeve are parallel and arranged in parallel on an expansion mandrel, and the cam line pressing structure comprises:

[0006] A cam mandrel is connected to one side of the end surface of the winding limiting sleeve in a direction parallel to the central axis of the winding limiting sleeve;

[0007] A cam is sleeved on the cam mandrel;

[0008] A torsional spring is sleeved on the cam mandrel and located between the cam and the winding limiting sleeve, one side of the cam facing the winding limiting sleeve is provided with an accommodating groove suitable for accommodating the torsional spring, one end of the torsional spring is limited on the end surface of the winding limiting sleeve, and the other end is limited on the side wall of the accommodating groove;

[0009] An axle stop ring is fixedly clamped on the side of the cam mandrel away from the torsional spring, and the axle stop ring tightly limits the cam on the torsional spring;

[0010] The cam is suitable for rotating and compressing the outer circumferential surface of the winding ring spacer sleeve, so as to compress the end of the wire on the contact surface of the winding ring spacer sleeve and the cam.

[0011] Optionally, the cam comprises a triangular column penetrating on the cam shaft, a circular arc column integrally connected on one side of the triangular column, and an extended circular arc boss on the circular arc column, the circular arc column is adapted to roll on the outer circumferential surface of the ring spacer after rotating a certain angle, and the extended circular arc boss extends to one side of the winding limiting sleeve along the central axis direction of the cam shaft to form the accommodating groove between the triangular column, the circular arc column and the extended circular arc boss.

[0012] Optionally, the torsional spring comprises a central cylindrical spring sleeved on the cam shaft, and a first straight section and a first L-shaped section located at two ends of the central cylindrical spring, the first straight section is integrally connected on one end of the central cylindrical spring and extends outward to adhere to the inner wall of the extended circular arc boss, and the first L-shaped section is integrally connected on the other end of the central cylindrical spring and extends outward to adhere to the end surface of the triangular column and is vertically connected to the end surface of the winding limiting sleeve.

[0013] Optionally, the triangular column is provided with a shaft mounting hole penetrating in the direction parallel to the central axis of the ring spacer, and the cam shaft comprises a shaft body adapted to penetrate in the shaft mounting hole.

[0014] Optionally, the shaft body is provided with a check ring groove on the side away from the winding limiting sleeve, the check ring groove is adapted to install the shaft check ring, and the shaft check ring is adapted to adhere to the end surface of the cam.

[0015] Optionally, the winding limiting sleeve comprises a circular ring body and a square boss penetrating on the expansion shaft, two square bosses are integrally connected on two sides of the circular ring body, and the circular ring body is provided with a limiting hole adapted to limit the first L-shaped section on the side end surface close to the ring spacer.

[0016] Optionally, the square boss is provided with a connecting hole corresponding to the shaft mounting hole, one end of the shaft body is adapted to be vertically inserted in the connecting hole, and the end surface of the extended circular arc boss close to the square boss is in contact with the square boss.

[0017] Optionally, the height of the triangular column is equal to that of the circular arc column, and the connection between the triangular column and the circular arc column is smoothly transitioned.

[0018] Optionally, the circular arc surface of the circular arc column and the extended circular arc boss is located on the same side close to the outer circumferential surface of the ring spacer, so that the circular arc column and the extended circular arc boss roll on the outer circumferential surface of the ring spacer at the same time when rotating.

[0019] Optionally, the expanding mandrel comprises a square elastic sleeve and a flange connected to one end of the square elastic sleeve, and the winding limiting sleeve and the center of the winding ring spacer are provided with a square hole matching the shape of the square elastic sleeve.

[0020] The second purpose of the utility model is to provide a winding limiting sleeve assembly, which comprises a plurality of winding limiting sleeves as described above, and the plurality of winding limiting sleeves are coaxially and parallel arranged and arranged on the expanding mandrel.

[0021] Compared with the prior art, the utility model has at least the following beneficial effects:

[0022] The cam wire pressing structure in the utility model comprises a cam mandrel, a cam, a torsional spring and an axle check ring, wherein the cam mandrel serves as the basis of the whole structure, the cam mandrel is vertically connected to one side end face of the winding limiting sleeve along the direction of the central axis of the winding limiting sleeve; the cam is sleeved on the cam mandrel and is used for rotating to press the head or tail of the winding on the winding limiting sleeve; the torsional spring is sleeved on the cam mandrel and located between the cam and the winding limiting sleeve, one side of the cam facing the winding limiting sleeve is provided with a containing groove suitable for containing the torsional spring, one end of the torsional spring is limited on the end face of the winding limiting sleeve, and the other end is limited on the side wall of the containing groove. In this way, the elastic force is provided by the torsional spring, the cam and the winding ring spacer can be in close contact, so that the end of the winding is pressed tightly; the axle check ring is fixedly clamped on the side of the cam mandrel away from the torsional spring, and the axle check ring limits the cam to be tightly attached to the torsional spring; the cam is suitable for rotating and being pressed tightly on the outer circumferential surface of the winding ring spacer, so that the end of the winding is pressed tightly on the contact surface of the winding ring spacer and the cam. When the end of the winding needs to be pressed tightly, the cam rotates under the action of the elastic force of the torsional spring and is pressed tightly on the outer circumferential surface of the winding ring spacer, one end of the torsional spring is limited on the end face of the winding limiting sleeve, and the other end is limited on the side wall of the containing groove of the cam, so that the elastic force of the torsional spring can be effectively transmitted to the cam; the axle check ring is used for limiting the position of the cam, so that the cam cannot be displaced due to the elastic force of the torsional spring, and the contact pressure of the cam and the winding ring spacer is maintained. Therefore, the cam can be stably pressed tightly on the winding ring spacer by the elastic force provided by the torsional spring, so that the end of the winding is effectively fixed. In addition, the cam can rotate, and the pressing force can be adjusted according to the needs, so as to adapt to different winding requirements. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic view of the cam wire pressing structure in the utility model embodiment;

[0024] Figure 2 It is an exploded structure schematic view of the cam wire pressing structure in the utility model embodiment;

[0025] Figure 3 It is a one-way direction structure schematic view of the cam in the utility model embodiment;

[0026] Figure 4 It is another direction structure schematic view of the cam in the embodiment of the utility model;

[0027] Figure 5 It is three-dimensional structure schematic view of the cam line pressing structure installed on the winding limiting sleeve and the winding ring spacer sleeve in the embodiment of the utility model;

[0028] Figure 6 It is front view structure schematic view of the cam line pressing structure installed on the winding limiting sleeve and the winding ring spacer sleeve in the embodiment of the utility model.

[0029] Mark explanation:

[0030] 1-cam mandrel;11-mandrel body;12-stop ring ring groove;

[0031] 2-cam;21-triangular column;211-mandrel mounting hole;22-circular arc column;23-extended circular arc boss;

[0032] 3-torsion spring;31-center cylindrical spring;32-first straight section;33-first L-shaped section;

[0033] 4-axle stop ring;

[0034] 5-winding limiting sleeve;51-circular ring body;52-square boss;

[0035] 6-winding ring spacer sleeve;

[0036] 7-expansion mandrel. Specific implementation

[0037] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0038] In the description of the utility model, it is necessary to explain that the term "first", "second" and the like are only used for the purpose of description, and can not be understood as indicating or implying relative importance.

[0039] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, also can be the communication of two elements inside, can be wireless connection, also can be wired connection.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0040] Please refer to Figures 1-6 The utility model discloses a cam line pressing structure, which is installed on one side of the winding limiting sleeve 5 and the ring winding spacer 6, the winding limiting sleeve 5 and the ring winding spacer 6 are parallel and arranged in parallel on the expansion mandrel 7, the cam line pressing structure comprises a cam mandrel 1, a cam 2, a torsion spring 3 and a shaft check ring 4, wherein:

[0041] The cam mandrel 1 is the basis of the whole structure, in the embodiment, the cam mandrel 1 is vertically connected to one side end face of the winding limiting sleeve 5 along the direction parallel to the central axis of the winding limiting sleeve 5;The cam 2 is sleeved on the cam mandrel 1 and is used for rotating to press the head or tail of the winding on the winding limiting sleeve 5;The torsion spring 3 is sleeved on the cam mandrel 1 and located between the cam 2 and the winding limiting sleeve 5, a containing groove suitable for containing the torsion spring 3 is formed in the side of the cam 2 facing the winding limiting sleeve 5, and one end of the torsion spring 3 is limited on the end face of the winding limiting sleeve 5, and the other end is limited on the side wall of the containing groove. In this way, the elastic force is provided by the torsion spring 3, so that the cam 2 can be in close contact with the ring winding spacer 6, to realize the pressing of the winding end;The shaft check ring 4 is fixedly connected to the side of the cam mandrel 1 away from the torsion spring 3, and the shaft check ring 4 limits the cam 2 to tightly adhere to the torsion spring 3;The cam 2 is suitable for rotating and pressing on the outer circumferential surface of the ring winding spacer 6, so as to press the end of the winding on the contact surface between the ring winding spacer 6 and the cam 2.

[0042] When it is needed to press the end of the winding, the cam 2 rotates under the action of the elastic force of the torsion spring 3 and is pressed on the outer circumferential surface of the ring winding spacer 6, one end of the torsion spring 3 is limited on the end face of the winding limiting sleeve 5, and the other end is limited on the side wall of the containing groove of the cam 2, so that the elastic force of the torsion spring 3 can be effectively transmitted to the cam 2;The shaft check ring 4 is used for limiting the position of the cam 2, so as to ensure that the cam 2 does not displace due to the elastic force of the torsion spring 3, to maintain the contact pressure between the cam 2 and the ring winding spacer 6.

[0043] Therefore, the cam 2 can be stably pressed on the ring winding spacer 6 by the elastic force provided by the torsion spring 3, to ensure that the end of the winding is effectively fixed. In addition, since the cam 2 can rotate, the pressing force can be adjusted as needed to adapt to different winding requirements.

[0044] Further, please refer to Figure 2 , 3 , 4, the cam 2 includes a triangular column 21, a circular arc column 22 and an extended circular arc boss 23, wherein:

[0045] The triangular column 21 is provided as a basic part of the cam 2, and is arranged on the cam shaft 1 to provide a rotation center for the cam 2; the circular arc column 22 is integrally connected to one side of the triangular column 21, and is adapted to roll on the outer circumferential surface of the ring spacer 6; the extended circular arc boss 23 is located on the circular arc column 22, and the circular arc column 22 is adapted to roll on the outer circumferential surface of the ring spacer 6 after rotating by a certain angle; the extended circular arc boss 23 extends along the central axis of the cam shaft 1 to one side of the winding limiting sleeve 5, so as to form the accommodating groove between the triangular column 21, the circular arc column 22 and the extended circular arc boss 23; in this way, the elastic force of the torsion spring 3 can be effectively transmitted to the circular arc column 22, and then the cam 2 is pushed to press the ring spacer 6.

[0046] Therefore, in the embodiment, the design of the cam 2 realizes smooth pressing of the ring spacer 6 through the rolling function of the circular arc column 22 and the accommodating function of the extended circular arc boss 23, while ensuring the stability and reliability of the structure; such design not only improves the accuracy of operation, but also helps to prolong the service life of the equipment.

[0047] Further, please refer to Figure 1 , 2 , the torsion spring 3 includes a central cylindrical spring 31, a first straight section 32 and a first L-shaped section 33, wherein:

[0048] The central cylindrical spring 31 is sleeved on the cam shaft 1, the first straight section 32 and the first L-shaped section 33 are located at two ends of the central cylindrical spring 31, the first straight section 32 is integrally connected to one end of the central cylindrical spring 31 and extends outward to adhere to the inner wall of the extended circular arc boss 23, and the first L-shaped section 33 is integrally connected to the other end of the central cylindrical spring 31 and extends outward to adhere to the end face of the triangular column 21 and then is connected perpendicularly to the end face of the winding limiting sleeve 5.

[0049] Specifically in the embodiment, the main elastic force provided by the central cylindrical spring 31 is transmitted to the cam 2 and the winding limiting sleeve 5 through the first straight section 32 and the first L-shaped section 33, so as to ensure that the torsion spring 3 not only provides elastic force, but also limits the relative position of the cam 2 and the winding limiting sleeve 5.

[0050] Further, please refer to Figure 1 , 2 , a shaft mounting hole 211 is formed in the triangular column 21 and penetrates in a direction parallel to the central axis of the ring spacer 6, and the cam shaft 1 includes a shaft body 11 which is adapted to be arranged in the shaft mounting hole 211.

[0051] In this embodiment, the design of the mandrel mounting hole 211 on the triangular column 21 and the mandrel body 11 of the cam mandrel 1 provides an accurate and stable rotation center for the cam 2, which not only improves the stability and accuracy of the entire cam line pressing structure, but also simplifies the assembly and maintenance process and improves the operation efficiency.

[0052] Further, as shown in Figure 1 , 2 , the mandrel body 11 is provided with a check ring groove 12 on the side away from the winding limiting sleeve 6, and the shaft check ring 4 is adapted to be installed in the check ring groove 12, and the shaft check ring 4 is adapted to be attached to the end face of the cam 2.

[0053] In this embodiment, the check ring groove 12 is a notch provided on the mandrel body 11, which is designed to install the shaft check ring 4. Its main functions are: first, to fix the check ring and prevent it from sliding; second, to limit the axial or radial movement of other components through the check ring, to ensure the stability and positioning accuracy of the components.

[0054] Further, as shown in Figure 1 , 2 , the winding limiting sleeve 5 includes a circular ring body 51 and a square boss 52 inserted on the expansion mandrel 7, and the two square bosses 52 are integrally connected on both sides of the circular ring body 51, and the circular ring body 51 is provided with a limiting hole suitable for inserting the first L-shaped section on the side end face close to the winding limiting sleeve 6.

[0055] In this embodiment, the expansion mandrel 7 realizes the fixation and limiting of the winding limiting sleeve 5 through its expansion characteristics. By inserting the circular ring body 51 on the expansion mandrel 7, the axial positioning of the winding limiting sleeve 5 can be achieved, ensuring its accurate position during the winding process.

[0056] The working principle of the expansion mandrel 7 is as follows: generally, by rotating the drive bolt to push the piston and the sealing block towards the inside of the mandrel, the pressure in the oil cavity is increased, forcing the expansion wall to expand to achieve clamping.

[0057] Further, as shown in Figure 5 , 6 , the square boss 52 is provided with a connecting hole corresponding to the mandrel mounting hole 211, and one end of the mandrel body 11 is adapted to be vertically inserted into the connecting hole, and the end face of the extended circular arc boss 23 close to the square boss 52 is in contact with the square boss 52.

[0058] Specifically, the connecting hole provided on the square boss 52 corresponds to the mandrel mounting hole 211, which allows one end of the mandrel body 11 to be vertically inserted into the connecting hole. The design of the connecting hole and the vertical insertion enhances the connection stability between the mandrel body 11 and the square boss 52, and reduces the shaking and displacement under dynamic working conditions.

[0059] Further, please refer to Figure 3 、 4 As shown in the drawings, the height of the triangular column 21 is equal to that of the circular arc column 22, so that the center of gravity of the cam 2 remains stable during rotation, improving the stability and reliability of the entire cam pressure line structure. In addition, the connection between the triangular column 21 and the circular arc column 22 is smooth, reducing wear rate and operating noise, and improving the service life of the cam 2.

[0060] Further, please refer to Figure 3 、 4 As shown in the drawings, the circular arc surface of the circular arc column 22 and the extended circular arc boss 23 is located on the same side close to the outer circumferential surface of the ring spacer 6, so that the circular arc column 22 and the extended circular arc boss 23 rotate at the same time on the outer circumferential surface of the ring spacer 6, ensuring that the circular arc column 22 and the extended circular arc boss 23 can work in coordination and synchronously contact the ring spacer 6 during rotation of the cam 2, ensuring the uniformity and stability of the pressure distribution.

[0061] Further, please refer to Figure 3 、 4 As shown in the drawings, the expansion mandrel 7 includes a square elastic sleeve and a flange plate connected to one end of the square elastic sleeve, and the center of the winding limiting sleeve 5 and the ring spacer 6 is provided with a square hole matched with the shape of the square elastic sleeve.

[0062] In this embodiment, the expansion mandrel 7 is based on the principle of radial expansion, combined with pneumatic or hydraulic technology to achieve stable clamping of the ring spacer 6.

[0063] Although the present utility model discloses as above, the protection scope of the present utility model is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A cam line pressing structure installed at one side of a winding limiting sleeve and a winding ring spacer sleeve, the winding limiting sleeve and the winding ring spacer sleeve being parallel and arranged in parallel on an expansion mandrel, characterized in that, The application relates to a winding limiting sleeve and a cam. The cam core is vertically connected to one side of the winding limiting sleeve along the direction parallel to the central axis of the winding limiting sleeve. The cam is sleeved on the cam core. The torsion spring is sleeved on the cam core and located between the cam and the winding limiting sleeve. The cam is provided with a containing groove suitable for containing the torsion spring on one side of the winding limiting sleeve. The cam core is fixedly connected to one side of the cam away from the torsion spring.

2. The camming structure of claim 1 wherein, The cam is suitable for being tightly pressed on the outer circumferential surface of the winding ring spacer to tightly press the wire end on the contact surface of the winding ring spacer and the cam.

3. The camming structure of claim 2, wherein, The cam comprises a triangular column, a circular arc column integrally connected to one side of the triangular column and an extended circular arc boss on the circular arc column.

4. The camming structure of claim 3, wherein The circular arc column is suitable for rolling on the outer circumferential surface of the winding ring spacer after rotating by a certain angle.

5. The camming structure of claim 4, wherein, The extended circular arc boss extends to one side of the winding limiting sleeve along the central axis of the cam core to form the containing groove between the triangular column, the circular arc column and the extended circular arc boss.

6. The camming structure of claim 4 wherein, The torsion spring comprises a central cylindrical spring sleeved on the cam core and a first straight section and a first L-shaped section located at two ends of the central cylindrical spring.

7. The camming structure of claim 6 wherein, The first straight section is integrally connected to one end of the central cylindrical spring and outwardly extends to adhere to the inner wall of the extended circular arc boss.

8. The camming structure of claim 7, wherein, The first L-shaped section is integrally connected to the other end of the central cylindrical spring and outwardly extends to adhere to the end surface of the triangular column and is vertically connected to the end surface of the winding limiting sleeve.

9. The camming structure of claim 2, wherein, The triangular column is provided with a core mounting hole penetrating along the direction parallel to the central axis of the winding ring spacer. The cam core comprises a core body suitable for penetrating into the core mounting hole. The core body is provided with a stop ring ring groove on one side away from the winding limiting sleeve. The stop ring ring groove is suitable for mounting the shaft stop ring which is suitable for adhering to the end surface of the cam. The winding limiting sleeve comprises a circular ring body and square bosses penetrating the expansion core. Two square bosses are integrally connected to two sides of the circular ring body. The circular ring body is provided with a limiting hole suitable for penetrating and limiting the first L-shaped section on one side end surface close to the winding ring spacer. The square boss is provided with a connecting hole corresponding to the core mounting hole. One end of the core body is suitable for being vertically inserted into the connecting hole. The end surface of the extended circular arc boss close to the square boss is in contact with the square boss. The height of the triangular column is equal to that of the circular arc column. The connecting part of the triangular column and the circular arc column is smoothly transitioned. The circular arc surface of the circular arc column and the extended circular arc boss is located on the same side close to the outer circumferential surface of the winding ring spacer. The circular arc column and the extended circular arc boss roll on the outer circumferential surface of the winding ring spacer at the same time when rotating.

10. The camming structure of claim 2, wherein, The expansion mandrel comprises a square elastic sleeve and a flange plate connected to one end of the square elastic sleeve, and a square hole with a shape matched with the square elastic sleeve is formed in the center of the winding limiting sleeve and the ring spacer sleeve.

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