Servo motor cable connector

Abstract

The invention discloses a servo motor cable connector, and relates to the technical field of motors, the servo motor cable connector comprises a data socket and a data plug, the data socket is in running fit with a motor body, the data socket is provided with a plurality of first positioning holes, and the data plug is provided with second positioning holes corresponding to the first positioning holes; the device further comprises a pressing plate matched with the upper surface of the data plug, positioning pins are installed at the positions, corresponding to the second positioning holes, of the pressing plate, positioning grooves are formed in the circumferential faces of the positioning pins, and positioning blocks matched with the positioning grooves are slidably installed on the side wall of the first positioning hole in the radial direction of the first positioning hole. According to the embodiment of the utility model, the abrasion caused by the contact between the data connecting line and the power supply connector or an external obstacle is avoided, and as a traditional bolt is not adopted to connect the plug and the socket of the data connector, even if the data plug is frequently plugged and unplugged, the abrasion of a connecting piece is not caused, and the stability of the connector in a long-term vibration working environment is improved.

Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to a servo motor cable connector. Background Technology

[0002] A servo motor cable connector includes a socket for connecting to the servo motor and a plug for connecting to the cable. In use, the plug is inserted into the socket to connect the cable to the motor. Existing technologies include servo motor cable connectors, such as the waterproof servo motor encoder cable connector disclosed in Chinese Utility Model Publication No. CN218182631U. This connector includes a connecting insert, with an auxiliary mounting tube fixedly connected to one side of the insert, and a fixing ring fixedly connected to one end of the auxiliary mounting tube. In use, the cable end is inserted into the connecting insert, and then one end of a connecting spring pushes a rubber block, causing the rubber block to adhere to the cable. A reinforcing block is then inserted into a reinforcing groove, causing the reinforcing rubber block to adhere to the cable. For disassembly, the reinforcing rubber block and the rubber block are separated from the cable, and then the cable end is separated from the connecting insert.

[0003] Servo motor cable connectors include power connectors and data connectors. To avoid mechanical interference between the two, the data connector is usually designed to rotate relative to the motor body. During installation, the operator rotates the data connector socket to allow the data cable to avoid the power connector and external obstacles after installation. Currently, the data connector socket and the motor body are mostly limited by damping. In long-term vibration environments, the connector socket is prone to rotation relative to the motor body, causing the data cable to come into contact with the power connector or external obstacles, resulting in wear. In addition, during the production testing and subsequent use of servo motors, the data connector needs to be adjusted regularly. This adjustment requires frequent plugging and unplugging of the socket. If traditional bolts are used to connect the data connector plug and socket, the operation is not only cumbersome, but it is also prone to mechanical wear between the bolt and the screw hole, which cannot guarantee the connection stability under long-term vibration conditions. Summary of the Invention

[0004] The purpose of this invention is to provide a servo motor cable connector to overcome the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a servo motor cable connector, comprising a data socket and a data plug, wherein the data socket is rotatably engaged with the motor body, the data socket having a plurality of first positioning holes, and the data plug having second positioning holes corresponding to the first positioning holes; further comprising a pressure plate engaging with the upper surface of the data plug, wherein a positioning pin is installed on the pressure plate corresponding to the position of each second positioning hole, a positioning groove is formed on the circumferential surface of the positioning pin, and a positioning block engaging with the positioning groove is slidably installed on the side wall of the first positioning hole along its radial direction.

[0006] As a preferred embodiment of the present invention, the bottom edges of the positioning groove and the positioning block are rounded, and an adjustment plate is slidably installed on the data socket along the axial direction of the first positioning hole, with the end of the adjustment plate forming an arc-shaped portion that fits against the bottom edge of the positioning block.

[0007] As a preferred embodiment of the present invention, a cavity is formed on the upper surface of the data socket, a sealing plate that slidably matches the cavity is slidably installed inside the data socket, and an adjusting plate is fixedly connected to the sealing plate; a sealing strip is fixedly installed on the edge of the cavity.

[0008] As a preferred embodiment of the present invention, the servo motor cable connector further includes a base fixedly installed on the motor body, two telescopic arms are slidably installed on the base, and rollers that fit against the data socket are installed at the ends of the telescopic arms.

[0009] As a preferred embodiment of the present invention, the base surface is provided with a sliding groove corresponding to the position of each telescopic arm, and a spring is installed between the telescopic arm and the base.

[0010] As a preferred embodiment of the present invention, a cover plate is installed on the top of the slide, and a receiving groove is opened on the base surface corresponding to the position of each slide. An air hole is opened between the slide and the receiving groove. A sealing block is movably installed on the base corresponding to the position of the receiving groove. The sealing block is used to seal the air hole.

[0011] As a preferred embodiment of the present invention, the surface of the receiving groove with the air hole is inclined, the sealing block slides with the receiving groove, and a rubber sheet is pasted on the side surface of the sealing block corresponding to the air hole; the two sealing blocks are fixedly connected by a rigid arm.

[0012] As a preferred embodiment of the present invention, a sliding plate is slidably mounted on the base.

[0013] As a preferred embodiment of the present invention, a U-shaped plate is fixedly installed on the other side of the skateboard, and a connecting arm that fits against the outer wall of the data socket is fixedly installed on the adjusting plate. An arc-shaped plate corresponding to the height of the U-shaped plate is fixedly installed on the connecting arm.

[0014] As a preferred embodiment of the present invention, a baffle is fixedly installed on the arc-shaped plate, and the positioning block has a first state of being in contact with the positioning pin and a second state of being separated from the positioning pin; when the positioning block is in the first state, the bottom surface of the baffle is flush with the top surface of the U-shaped plate.

[0015] In the above technical solution, the servo motor cable connector provided by this invention can limit the data socket at different rotation angles through a telescopic arm, preventing the data socket from rotating relative to the motor body during use, thereby avoiding wear caused by the data connection cable contacting the power connector or external obstacles. In this embodiment, the operator manually pushes the adjustment plate, which on the one hand locks the positioning block and positioning pin, achieving the connection between the data socket and the data plug, and on the other hand increases the air pressure inside the cavity, keeping the cavity under high pressure relative to the external working environment, preventing external dust or moisture from entering the cavity. This embodiment does not use traditional bolts to connect the data connector plug and socket; even with frequent plugging and unplugging of the data plug during data connector debugging, it will not cause wear on the connector parts, improving the stability of the connector in long-term vibration working environments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the servo motor cable connector in the embodiment;

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the servo motor cable connector in the embodiment;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the pressure plate and the positioning pin in the embodiment;

[0021] Figure 5 This is a three-dimensional structural diagram of the data socket and base in the first state of the embodiment;

[0022] Figure 6 This is a schematic diagram of the second state three-dimensional structure of the data socket and base in the embodiment;

[0023] Figure 7 This is a schematic diagram of the positioning pin and positioning block in the embodiment;

[0024] Figure 8 This is a schematic diagram of the sealing block and air vent in the embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Data socket; 101. First positioning hole; 102. Cavity; 2. Data plug; 201. Second positioning hole; 3. Pressure plate; 4. Positioning pin; 401. Positioning groove; 5. Positioning block; 6. Adjusting plate; 7. Sealing plate; 8. Base; 801. Slide groove; 802. Receiving groove; 803. Air hole; 9. Telescopic arm; 10. Roller; 11. Spring; 12. Cover plate; 13. Sealing block; 14. Rubber sheet; 15. Rigid arm; 16. Slide plate; 17. U-shaped plate; 18. Arc plate; 19. Baffle. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, this embodiment provides a servo motor cable connector, including a data socket 1 and a data plug 2, as well as a power socket and a power plug. The power socket is fixedly mounted on the motor body, and the power plug is connected to the power socket by bolts.

[0029] like Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, in this embodiment, the data socket 1 rotates and engages with the motor body. The data socket 1 has several first positioning holes 101, and the data plug 2 has second positioning holes 201 corresponding to the first positioning holes 101. This embodiment also includes a pressure plate 3 that engages with the upper surface of the data plug 2. A positioning pin 4 is installed on the pressure plate 3 at the position corresponding to each second positioning hole 201. A positioning groove 401 is provided on the circumferential surface of the positioning pin 4. A positioning block 5 that engages with the positioning groove 401 is slidably installed on the side wall of the first positioning hole 101 along its radial direction.

[0030] Positioning block 5 has a first state of engagement with positioning pin 4 (e.g.) Figure 7 (As shown) and the second state separated from the positioning pin 4. During installation, the operator attaches the data plug 2 to the data socket 1, aligning the first positioning hole 101 and the second positioning hole 201. Then, the pressure plate 3 is attached to the data plug 2, and the positioning pin 4 passes through the corresponding second positioning hole 201 and first positioning hole 101 until the bottom of the positioning pin 4 is in contact with the bottom surface of the first positioning hole 101. Figure 6The state is shown. By adjusting the position of the positioning block 5 with external force, the positioning block 5 is switched from the second state to the first state. This limits the positioning pin 4, preventing it from moving axially, thus connecting the data plug 2 and the data socket 1. To separate the data plug 2 and the data socket 1, simply release the external force applied to the positioning block 5 and then pull out the pressure plate 3, allowing the positioning pin 4 to separate from the data socket 1 and the data plug 2 in sequence. It should be noted that the bottom edges of the positioning groove 401 and the positioning block 5 are rounded. When the positioning pin 4 and the positioning block 5 are in contact, their bottom edges abut against each other, limiting their movement. After releasing the external force on the positioning block 5, as the operator pulls out the pressure plate 3, the positioning pin 4 can push the positioning block 5 from the first state back to the second state. In summary, in this embodiment, the connection between the data socket 1 and the data plug 2 is achieved through the cooperation of the positioning block 5 and the positioning pin 4. During installation, only the movement of the positioning block 5 needs to be controlled, making the operation relatively simple. Furthermore, frequent plugging and unplugging of the data plug 2 will not cause wear to the positioning block 5, thus improving the stability of the connector in a long-term vibration working environment.

[0031] like Figure 5 and Figure 7 As shown, an adjusting plate 6 is slidably mounted on the data socket 1 along the axial direction of the first positioning hole 101, and the end of the adjusting plate 6 is formed with the bottom edge of the positioning block 5. Figure 7 The arc-shaped part that fits with the bottom right edge of the positioning block 5. A cavity 102 is formed on the upper surface of the data socket 1. A sealing plate 7 that mates with the cavity 102 is slidably installed inside the data socket 1. The edge of the sealing plate 7 is provided with a sealing strip and fits with the side wall of the cavity 102. The adjusting plate 6 is fixedly connected to the sealing plate 7. Specifically, the operator first rotates the data socket 1 to a predetermined angle, then installs the data plug 2 and the pressure plate 3 in sequence, and then manually pulls the adjusting plate 6 upward. During the upward movement of the adjusting plate 6, it pushes the positioning block 5, causing the positioning block 5 to move relative to the positioning pin 4, that is, the positioning block 5 changes from the second state to the first state that limits the positioning pin 4; at the same time, the sealing plate 7 rises with the adjusting plate 6, which increases the air pressure in the area above the sealing plate 7 in the cavity 102 and decreases the air pressure in the area below the sealing plate 7 in the cavity 102. Under the action of air pressure, the sealing plate 7 and the adjusting plate 6 tend to move downward. Because the air pressure in the area above the sealing plate 7 inside the cavity 102 is increased and greater than the air pressure in the external environment, dust and moisture from the external environment cannot easily enter the cavity 102. A sealing strip is fixedly installed on the edge of the cavity 102, and a sealing sheet that fits tightly against the data socket 1 is installed on the adjusting plate 6 to ensure the airtightness of the cavity 102 and to ensure that the air pressure inside the cavity 102 changes when the sealing plate 7 moves relative to the data socket 1.

[0032] like Figure 5As shown, the servo motor cable connector in this embodiment also includes a base 8 fixedly mounted on the motor body. Two telescopic arms 9 are slidably mounted on the base 8, and rollers 10 that fit against the data socket 1 are mounted at the ends of the telescopic arms 9. A groove 801 corresponding to the position of each telescopic arm 9 is provided on the surface of the base 8 to cooperate with the telescopic arm 9. A spring piece 11 is installed between the telescopic arm 9 and the base 8. The two rollers 10 fit against the side wall of the data socket 1, and the spring piece 11 is in a compressed state. When the data socket 1 rotates relative to the motor body, the telescopic arms 9 extend and retract accordingly, and the degree of compression of the spring piece 11 changes. The rotation angle of the data socket 1 is any angle within a predetermined range. As long as the extension and retraction length of the telescopic arms 9 is fixed, the data socket 1 can be kept stationary relative to the motor body, thereby preventing it from rotating relative to the motor body in a long-term vibration environment.

[0033] like Figure 5 and Figure 8 As shown, a cover plate 12 is installed on the top of the slide 801. The cover plate 12 is connected to the base 8 by sealant. The upper surface of the telescopic arm 9 is in close contact with the lower surface of the cover plate 12 and has a sealing effect. A receiving groove 802 is provided on the surface of the base 8 corresponding to the position of each slide 801. An air hole 803 is provided between the slide 801 and the receiving groove 802. A sealing block 13 is movably installed on the base 8 at the position corresponding to the receiving groove 802. The sealing block 13 is used to seal the air hole 803. Specifically, when the telescopic arm 9 moves relative to the base 8 under the action of external force, the degree of compression of the spring piece 11 will change, but it will always exert a force on the telescopic arm 9, making the roller 10 fit tightly against the outer wall of the data socket 1. Meanwhile, because the upper surface of the telescopic arm 9 and the lower surface of the cover plate 12 are in close contact and sealed, airflow occurs between the slide groove 801 and the receiving groove 802. When the telescopic arm 9 retracts, the air in the slide groove 801 enters the corresponding receiving groove 802 through the air hole 803. When the telescopic arm 9 extends, the air in the receiving groove 802 enters the corresponding slide groove 801 through the air hole 803. If the air hole 803 is blocked, the receiving groove 802 forms a closed space, and the air in the closed space is difficult to compress. Therefore, the telescopic arm 9 is difficult to move relative to the base 8 under the action of external force. That is, the telescopic arm 9 and the roller 10 can maintain the limiting effect on the data socket 1.

[0034] Based on the above principles, such as Figure 3 , Figure 5 and Figure 8As shown, in this embodiment, the surface of the receiving groove 802 with the air hole 803 is inclined. The sealing block 13 slides in fit with the receiving groove 802, and a rubber sheet 14 is attached to one side surface of the sealing block 13 corresponding to the air hole 803. The two sealing blocks 13 are fixedly connected by a rigid arm 15. After rotating the data socket 1, the operator only needs to push the rigid arm 15 downwards to make the rubber sheet 14 on the sealing block 13 fit tightly against the surface of the air hole 803, thus sealing the air hole 803 and limiting the position of the data socket 1.

[0035] like Figure 5 and Figure 6 As shown, a sliding plate 16 for limiting the rigid arm 15 is slidably mounted on the base 8; a U-shaped plate 17 is fixedly mounted on the other side of the sliding plate 16, and a connecting arm that fits against the outer wall of the data socket 1 is fixedly mounted on the adjusting plate 6. An arc-shaped plate 18 corresponding to the height of the U-shaped plate 17 is fixedly mounted on the connecting arm. A baffle 19 is fixedly mounted on the arc-shaped plate 18; when the positioning block 5 is in the first state, the bottom surface of the baffle 19 is flush with the top surface of the U-shaped plate 17.

[0036] Specifically, in the initial state, the data plug 2 is separated from the data socket 1, and the slide plate 16 and U-shaped plate 17 are also separated from the base 8. During installation, the operator first aligns the data plug 2 with the data socket 1, then aligns the pressure plate 3 with the data plug 2 until the bottom of the positioning pin 4 is aligned with the bottom surface of the first positioning hole 101. Next, the operator manually pulls the adjusting plate 6 upwards, causing the sealing plate 7, connecting arm, arc plate 18, and baffle 19 to rise simultaneously until the positioning block 5 changes from the second state to the first state, which limits the positioning pin 4. This completes the connection between the data plug 2 and the data socket 1. Next, the data socket 1 is rotated, causing the data plug 2, pressure plate 3, positioning pin 4, positioning block 5, adjusting plate 6, sealing plate 7, connecting arm, arc plate 18, and baffle 19 to rotate as well, until the cable on the data plug 2 is adjusted to a suitable position to avoid interference with the power connector and external obstacles. After completing the above steps, the operator controls the adjusting plate 6 with one hand to maintain the adjusting plate 6, the arc plate 18, and the baffle 19 at a predetermined height. With the other hand, the operator presses down on the rigid arm 15 and inserts the sliding plate 16 and the U-shaped plate 17 into the predetermined track on the base 8, and pushes them to move towards the data socket 1. During this process, the lower surface of the sliding plate 16 is in contact with the upper surface of the rigid arm 15, which limits the rigid arm 15 and the sealing block 13 until the U-shaped plate 17 is in contact with the outer arc surface of the arc plate 18. In this state, the bottom surface of the baffle 19 is flush with the top surface of the U-shaped plate 17, and there is a large static friction between them. This is because the sealing plate 7 has a downward tendency under air pressure, which in turn causes the adjusting plate 6, the arc plate 18, and the baffle 19 to have a downward tendency. The baffle 19 is blocked by the U-shaped plate 17 and cannot descend, pressing the U-shaped plate 17 tightly onto the base 8. Thus, the U-shaped plate 17 and the sliding plate 16 are pressed firmly against the base 8 under pressure and will not easily move relative to the base 8. The rigid arm 15 and the sealing block 13 will also not easily move relative to the base 8. The vent 803 is stably blocked, and the data socket 1 will not easily rotate relative to the motor body. The adjusting plate 6 and the sealing plate 7 are also unable to move downward under the limiting effect of the U-shaped plate 17. After the operator releases the adjusting plate 6, the data socket 1, the data plug 2, the pressure plate 3, and the positioning pin 4 can also maintain a stable connection.

[0037] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A servo motor cable connector, comprising a data socket (1) and a data plug (2), wherein the data socket (1) is rotatably engaged with the motor body, characterized in that, The data socket (1) is provided with a plurality of first positioning holes (101), and the data plug (2) is provided with second positioning holes (201) corresponding to the first positioning holes (101); it also includes a pressure plate (3) that cooperates with the upper surface of the data plug (2), and a positioning pin (4) is installed on the pressure plate (3) at the position corresponding to each second positioning hole (201). A positioning groove (401) is provided on the circumferential surface of the positioning pin (4), and a positioning block (5) that cooperates with the positioning groove (401) is slidably installed on the side wall of the first positioning hole (101) along its radial direction.

2. A servo motor cable connector according to claim 1, characterized in that, The bottom edges of the positioning groove (401) and the positioning block (5) are rounded. An adjustment plate (6) is slidably installed on the data socket (1) along the axial direction of the first positioning hole (101). The end of the adjustment plate (6) forms an arc-shaped part that fits against the bottom edge of the positioning block (5).

3. A servo motor cable connector according to claim 2, characterized in that, The upper surface of the data socket (1) forms a cavity (102), and a sealing plate (7) that cooperates with the cavity (102) is slidably installed inside the data socket (1). The adjusting plate (6) is fixedly connected to the sealing plate (7). A sealing strip is fixedly installed on the edge of the cavity (102).

4. A servo motor cable connector according to claim 3, characterized in that, It also includes a base (8) fixedly installed on the motor body, on which two telescopic arms (9) are slidably installed, and at the end of the telescopic arms (9) are rollers (10) that fit against the data socket (1).

5. A servo motor cable connector according to claim 4, characterized in that, The base (8) surface is provided with a sliding groove (801) corresponding to the position of each telescopic arm (9) to cooperate with the telescopic arm (9), and a spring piece (11) is installed between the telescopic arm (9) and the base (8).

6. A servo motor cable connector according to claim 5, characterized in that, The top of the slide (801) is equipped with a cover plate (12). The base (8) surface is provided with a receiving groove (802) corresponding to the position of each slide (801). An air hole (803) is provided between the slide (801) and the receiving groove (802). A sealing block (13) is movably installed on the base (8) corresponding to the position of the receiving groove (802). The sealing block (13) is used to seal the air hole (803).

7. A servo motor cable connector according to claim 6, characterized in that, The surface of the receiving groove (802) with the air hole (803) is inclined. The sealing block (13) slides with the receiving groove (802). A rubber sheet (14) is pasted on one side of the sealing block (13) corresponding to the air hole (803). The two sealing blocks (13) are fixedly connected by a rigid arm (15).

8. A servo motor cable connector according to claim 7, characterized in that, A sliding plate (16) for limiting the rigid arm (15) is slidably mounted on the base (8).

9. A servo motor cable connector according to claim 8, characterized in that, A U-shaped plate (17) is fixedly installed on the other side of the slide plate (16). A connecting arm that fits against the outer wall of the data socket (1) is fixedly installed on the adjusting plate (6). An arc plate (18) corresponding to the height of the U-shaped plate (17) is fixedly installed on the connecting arm.

10. A servo motor cable connector according to claim 9, characterized in that, A baffle (19) is fixedly installed on the arc plate (18). The positioning block (5) has a first state that is in contact with the positioning pin (4) and a second state that is separated from the positioning pin (4). When the positioning block (5) is in the first state, the bottom surface of the baffle (19) is flush with the top surface of the U-shaped plate (17).

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