Motor insert crimping device with anti-bending function

Abstract

The utility model discloses a motor insert crimping device with an anti-bending function, which can prevent a conducting strip from being bent during crimping, and comprises a fixed seat, a crimping driving mechanism, an outer sheath driving mechanism, the conducting strip, a separation sleeve, a crimping transmission shaft, a conducting strip body anti-bending sleeve, a square pin, a crimping sleeve and an outer sheath, the crimping driving mechanism is fixedly mounted on the fixed seat, and a pressing telescopic end suitable for stretching is arranged on the crimping driving mechanism; the outer sheath driving mechanism is fixedly installed on the side face of the fixing base, and a lifting telescopic end suitable for stretching out and drawing back is arranged on the outer sheath driving mechanism. The conductive sheet comprises a conductive sheet body, a connecting sheet and a connecting section connected between the conductive sheet body and the connecting sheet; the separation sleeve is rotatably arranged in the fixed seat, and the separation sleeve is of a hollow structure. The conductive sheet can be effectively prevented from being bent, and the connection stability of the conductive sheet and the wire rod is ensured.

Description

Technical Field

[0001] The utility model relates to a motor insert pressing device with an anti-bending function, belonging to the technical field of motor production. Background Art

[0002] Currently, conductive sheets are used in motors to connect the coils inside the motor to the windings, and their performance and reliability directly affect the working efficiency and lifespan of the motor. The conductive sheets are connected to wires or other connectors by means of pressing or welding.

[0003] After retrieving the prior art, it is found that the Chinese patent with the publication number CN218472322U discloses a conductive sheet, a stator assembly and an outer-rotor motor for a motor. In actual operation, it is found that since the conductive sheet is prone to bending during the pressing process, the connection stability is affected. This increases the product repair rate and maintenance cost, bringing many inconveniences to production. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a motor insert pressing device with an anti-bending function, which can effectively prevent the conductive sheet from bending and ensure the connection stability between the conductive sheet and the wire.

[0005] To solve the above technical problem, the technical solution of the utility model is: a motor insert pressing device with an anti-bending function, which can prevent the conductive sheet from bending during pressing, comprising:

[0006] A fixed seat;

[0007] A pressing drive mechanism, which is fixedly installed on the fixed seat, and the pressing drive mechanism is provided with a downward telescopic end suitable for telescoping;

[0008] An outer sheath drive mechanism, which is fixedly installed on the side of the fixed seat, and the outer sheath drive mechanism is provided with a lifting telescopic end suitable for telescoping;

[0009] A conductive sheet, which includes a conductive sheet body, a connecting piece and a connecting section connecting the conductive sheet body and the connecting piece;

[0010] A separating sleeve, which is rotatably arranged in the fixed seat, and the separating sleeve is of a hollow structure;

[0011] A pressing transmission shaft, which is movably installed in the separating sleeve, and the upper end of the pressing transmission shaft is hinged to the downward telescopic end of the pressing drive mechanism;

[0012] Anti-bending sleeve for the conductive sheet body, the upper end of the anti-bending sleeve for the conductive sheet body abuts against the lower end of the partition sleeve, a slot is provided at the upper end of the anti-bending sleeve for the conductive sheet body, and at least one protective groove adapted to slidably engage the conductive sheet body is provided at the lower end of the anti-bending sleeve for the conductive sheet body;

[0013] Square pin, the square pin is slidably disposed in the slot, and the square pin is fixedly connected to the crimping transmission shaft;

[0014] Crimping sleeve, the crimping sleeve is sleeved outside the anti-bending sleeve for the conductive sheet body, a wire pressing rod is provided on the crimping sleeve, a raised outer ring is provided at the upper end of the crimping sleeve, and the outer ring is fixedly connected to the square pin;

[0015] Outer sheath, the outer sheath is slidably mounted outside the partition sleeve, the outer sheath is connected to the lifting and telescopic end of the outer sheath driving mechanism, and at least one protective groove adapted to cooperate with the connecting piece is provided at the lower end of the outer sheath;

[0016] Wherein, after the conductive sheet body is slidably engaged in the protective groove of the anti-bending sleeve for the conductive sheet body, the crimping driving mechanism is adapted to drive the crimping sleeve to move downward through the crimping transmission shaft, so that the wire pressing rod of the crimping sleeve abuts against the connecting section of the conductive sheet;

[0017] The outer sheath driving mechanism is adapted to drive the outer sheath to move downward when the wire pressing rod abuts against the connecting section of the conductive sheet, so that the protective groove is slidably engaged on the connecting piece.

[0018] Further, a specific type of the outer sheath driving mechanism is provided, and the outer sheath driving mechanism includes:

[0019] At least one cylinder, the cylinder is fixed on the fixed seat, and the cylinder is provided with a telescopic rod;

[0020] The lifting and telescopic end is provided on the telescopic rod;

[0021] The lifting and telescopic end of the cylinder is connected to the outer sheath, and the cylinder is adapted to drive the outer sheath to move up and down.

[0022] Further, there are a pair of cylinders, and the pair of cylinders are respectively installed on both sides of the fixed seat.

[0023] Further, a specific type of the crimping driving mechanism is provided, and the crimping driving mechanism includes:

[0024] The first cylinder, the first cylinder is fixedly installed on the fixed seat.

[0025] Further, a specific structure of a reset monitoring component is provided. The motor insert crimping device with anti-bending function further includes a reset monitoring component, and the reset monitoring component includes:

[0026] A proximity sensor, which is fixedly installed at a preset position on the fixed seat;

[0027] A trigger, which is fixedly installed on the crimping transmission shaft;

[0028] When the crimping transmission shaft rotates to a predetermined position, the proximity sensor is adapted to be triggered by the trigger on the crimping transmission shaft and send an induction signal.

[0029] Further, three protective grooves are uniformly arranged circumferentially along the inner wall of the outer sheath;

[0030] Each of the protective grooves extends axially along the outer sheath.

[0031] Further, a specific structure of an outer sheath movement limiting component is provided. The motor insert crimping device with anti-bending function further includes an outer sheath movement limiting component, and the outer sheath movement limiting component includes:

[0032] An axially elongated waist groove is provided on the side wall of the outer sheath;

[0033] A radial pin groove is provided on the outer peripheral surface of the spacer sleeve;

[0034] A limit pin, which is fixedly installed in the radial pin groove of the spacer sleeve, and the free end of the limit pin extends through the axially elongated waist groove of the outer sheath, and the limit pin is adapted to slide axially in the axially elongated waist groove.

[0035] Further, in order to facilitate the downward pressing of the wire pressing rod, a free end is provided on the wire pressing rod, an arc transition portion is provided on the free end, and the cross-sectional area of the wire pressing rod gradually increases upward from the free end.

[0036] Adopting the above technical solutions, the present utility model has the following beneficial effects:

[0037] In the present utility model, first, the conductive sheet body of the conductive sheet is inserted into the protective groove of the anti-bending sleeve of the conductive sheet body. Then, the outer sheath driving mechanism drives the outer sheath to move downward, so that the connecting piece of the conductive sheet is embedded into the protective groove of the outer sheath. Next, the crimping driving mechanism, through the cooperation of the crimping transmission shaft and the square pin, drives the crimping sleeve to move downward. At this time, the wire pressing rod of the crimping sleeve will abut against the connecting section between the conductive sheet body and the connecting piece. The conductive sheet body and the connecting piece of the conductive sheet are respectively located in the protective groove of the anti-bending sleeve of the conductive sheet body and the protective groove of the outer sheath. During the crimping process, this double protection design effectively prevents the conductive sheet from being bent when subjected to the crimping force, thus ensuring the connection stability between the conductive sheet and the coil and greatly improving the overall reliability.

[0038] In addition, the present utility model adopts an outer sheath driving mechanism driven by a cylinder. Through the outer sheath connected to the telescopic rod of the cylinder, precise up and down movement of the outer sheath can be achieved. And an outer sheath movement limiting component is provided. The limit pin can slide axially in the axial waist groove, effectively limiting the movement range of the outer sheath. The wire pressing rod is designed with a structure having an arc transition part at the free end, and its cross-sectional area gradually expands upward from the free end. This not only facilitates the insertion of the wire pressing rod into the connecting section between the conductive sheet body and the connecting piece, but also can evenly distribute the crimping force and reduce damage to the conductive sheet.

[0039] In summary, through the above structural design, the present utility model can effectively prevent the conductive sheet from being bent during the wire pressing process and ensure the connection stability between the conductive sheet and the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a three-dimensional structural schematic diagram of the motor insert crimping device with an anti-bending function of the present utility model;

[0041] Figure 2 is a cross-sectional structural schematic diagram of the motor insert crimping device with an anti-bending function of the present utility model;

[0042] Figure 3 is an exploded structural schematic diagram of the motor insert crimping device with an anti-bending function of the present utility model;

[0043] Figure 4 is Figure 3 a partial enlarged view of part A in

[0044] Figure 5 is a three-dimensional structural schematic diagram of the outer sheath of the motor insert crimping device with an anti-bending function of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] In order to make the content of the present utility model easier to be clearly understood, the present utility model will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0046] As Figures 1-5 shown, a motor insert crimping device with an anti-bending function, which can prevent the conductive sheet from bending during crimping, includes:

[0047] A fixed seat 1;

[0048] A crimping driving mechanism 2, which is fixedly installed on the fixed seat 1, and a downward telescopic end 21 suitable for telescoping is provided on the crimping driving mechanism 2;

[0049] An outer sheath driving mechanism 3, which is fixedly installed on the side of the fixed seat 1, and a lifting telescopic end 31 suitable for telescoping is provided on the outer sheath driving mechanism 3;

[0050] A conductive sheet, which includes a conductive sheet body 41, a connecting piece 42, and a connecting section connecting the conductive sheet body 41 and the connecting piece 42;

[0051] A separating sleeve 5, which is rotatably arranged in the fixed seat 1, and the separating sleeve 5 is a hollow structure;

[0052] A crimping transmission shaft 6, which is movably installed in the separating sleeve 5, and the upper end of the crimping transmission shaft 6 is hinged to the downward telescopic end 21 of the crimping driving mechanism 2;

[0053] An anti-bending sleeve 7 for the conductive sheet body, the upper end of the anti-bending sleeve 7 for the conductive sheet body abuts against the lower end of the separating sleeve 5, a slotted groove 711 is provided at the upper end of the anti-bending sleeve 7 for the conductive sheet body, and at least one protective groove suitable for sliding and fitting the conductive sheet body 41 is provided at the lower end of the anti-bending sleeve 7 for the conductive sheet body;

[0054] A square pin 8, which is slidably arranged in the slotted groove 711, and the square pin 8 is fixedly connected to the crimping transmission shaft 6;

[0055] A crimping sleeve 9, which is sleeved outside the anti-bending sleeve 7 for the conductive sheet body, a wire pressing rod 91 is provided on the crimping sleeve 9, and a raised outer ring is provided at the upper end of the crimping sleeve 9, and the outer ring is fixedly connected to the square pin 8;

[0056] An outer sheath 10, which is slidably installed outside the separating sleeve 5, is connected to the lifting telescopic end 31 of the outer sheath driving mechanism 3, and at least one protective groove matched with the connecting piece 42 is provided at the lower end of the outer sheath 10;

[0057] Wherein, after the conductive sheet body 41 is slidably fitted into the protective groove of the conductive sheet body anti-bending sleeve 7, the crimping driving mechanism 2 is adapted to drive the crimping sleeve 9 to move downward through the crimping transmission shaft 6, so that the wire pressing rod 91 of the crimping sleeve 9 abuts against the connecting section of the conductive sheet;

[0058] The outer sheath driving mechanism 3 is adapted to drive the outer sheath 10 to move downward when the wire pressing rod 91 abuts against the connecting section of the conductive sheet, so that the protective groove is slidably fitted onto the connecting piece 42.

[0059] In this embodiment, as Figures 1-5 shown, first, the conductive sheet body 41 of the conductive sheet is inserted into the protective groove of the conductive sheet body anti-bending sleeve 7, and then the outer sheath driving mechanism 3 drives the outer sheath 10 to move downward, so that the connecting piece 42 of the conductive sheet is embedded in the protective groove of the outer sheath 10. Then, the crimping driving mechanism 2 cooperates with the square pin 8 through the crimping transmission shaft 6 to drive the crimping sleeve 9 to move downward. At this time, the wire pressing rod 91 of the crimping sleeve 9 will abut against the connecting section between the conductive sheet body 41 and the connecting piece 42. The conductive sheet body 41 and the connecting piece 42 of the conductive sheet are respectively located in the protective groove of the conductive sheet body anti-bending sleeve 7 and the protective groove of the outer sheath 10. During the crimping process, this double protection design effectively prevents the conductive sheet from being bent when subjected to the crimping force, thereby ensuring the connection stability between the conductive sheet and the coil and greatly improving the overall reliability.

[0060] Specifically, as Figures 1-3 and Figure 5 shown, the outer sheath driving mechanism 3 may have the following structure, including:

[0061] Two cylinders are fixed on the fixed seat 1, and the cylinders are provided with telescopic rods;

[0062] The lifting and telescopic end 31 is arranged on the telescopic rod;

[0063] The lifting and telescopic end 31 of the cylinder is connected to the outer sheath 10, and the cylinder is adapted to drive the outer sheath 10 to move up and down.

[0064] Specifically, as Figures 1-2 shown, there are a pair of cylinders, and the pair of cylinders are respectively installed on both sides of the fixed seat 1.

[0065] In this embodiment, as Figures 1-3 and Figure 5 shown, the outer sheath driving mechanism 3 uses a pair of cylinders as the driving source, and a connecting plate is used to connect the two cylinders, which also ensures the smoothness and accuracy of the outer sheath 10 during the lifting process. The two cylinders are respectively installed on both sides of the fixed seat 1. In this embodiment, the specific model of the cylinder is CDUW20-50D of SMC.

[0066] Specifically, as Figures 2-3As shown, the crimping drive mechanism 2 can have the following structure, including:

[0067] A first cylinder, which is fixedly installed on the fixed seat 1.

[0068] In this embodiment, as Figures 1-2 shown, when wire crimping is required, the telescopic rod of the first cylinder extends, pushing the crimping transmission shaft 6 downward, and then driving the crimping sleeve 9 to descend, realizing the crimping of the conductive sheet. The specific model of the first cylinder in this embodiment is CDQ2B32-20DZ of SMC.

[0069] Specifically, as Figures 1-2 shown, the motor insert crimping device with anti-bending function further includes a reset monitoring component, and the reset monitoring component includes:

[0070] A proximity sensor 71, which is fixedly installed at a preset position on the fixed seat 1;

[0071] A trigger 72, which is fixedly installed on the crimping transmission shaft 6;

[0072] When the crimping transmission shaft 6 rotates to a predetermined position, the proximity sensor 71 is adapted to be triggered by the trigger 72 on the crimping transmission shaft 6 and emits an induction signal.

[0073] In this embodiment, as Figures 1-2 shown, when the crimping transmission shaft 6 completes a crimping action, it will rotate back to the initial position. During this process, the trigger 72 will trigger the proximity sensor 71 to generate an induction signal. This signal can be used to confirm that the crimping transmission shaft 6 has been successfully reset, and can also be used as a trigger signal for starting the next crimping cycle.

[0074] In practical applications, a rotating bracket, a photoelectric switch, and a photoelectric baffle can be considered. The rotating bracket can be fixed on the crimping transmission shaft 6 for installing the photoelectric baffle. The photoelectric switch can be fixed on the fixed seat 1 and used in cooperation with the photoelectric baffle. When the crimping transmission shaft 6 rotates, the photoelectric baffle will periodically block the optical path of the photoelectric switch, thereby generating a more accurate position signal.

[0075] Specifically, as Figures 2-3 and Figure 5 shown, three protective grooves are uniformly arranged circumferentially along the inner wall of the outer sheath 10;

[0076] Each protective groove extends axially along the outer sheath 10.

[0077] In this embodiment, the three protective grooves can correspond to the conductive sheets of a three-phase electric motor. In some embodiments, the number of protective grooves is not limited to three and can be set according to specific requirements.

[0078] Specifically, as Figures 1-3 and Figure 5 shown, the motor insert crimping device with anti-bending function further includes an outer sheath movement limiting component, and the outer sheath movement limiting component includes:

[0079] An axial waist groove penetrating through is provided on the side wall of the outer sheath 10;

[0080] A radial pin groove is provided on the outer peripheral surface of the spacer sleeve 5;

[0081] A limit pin 12, the limit pin 12 is fixedly installed in the radial pin groove of the spacer sleeve 5, and the free end of the limit pin 12 extends through the axial waist groove of the outer sheath 10, and the limit pin 12 is adapted to slide axially in the axial waist groove.

[0082] In this embodiment, as Figures 1-3 and Figure 5 shown, the main function of the outer sheath movement limiting component is to limit the movement range of the outer sheath 10. Through the setting of the limit pin 12, the restricted movement of the outer sheath 10 in the axial direction is realized. When the outer sheath driving mechanism 3 drives the outer sheath 10 to move downward, the limit pin 12 slides upward in the axial waist groove; when the outer sheath 10 moves upward to reset, the limit pin 12 slides downward in the axial waist groove. This design not only ensures the movement freedom of the outer sheath 10, but also effectively prevents its excessive movement, avoiding possible mechanical interference or damage.

[0083] Specifically, as Figure 3 shown, a free end is provided on the wire pressing rod 91, an arc transition part is provided on the free end, and the cross-sectional area of the wire pressing rod 91 gradually expands upward from the free end.

[0084] In this embodiment, as Figure 3 shown, the arc design can significantly reduce the stress concentration during the crimping process and avoid unnecessary damage to the conductive sheet. This helps to achieve a more uniform and stable crimping effect.

[0085] In the above specific embodiments, the technical problems solved, technical solutions and beneficial effects of the present utility model are further described in detail. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A motor insert crimping device with an anti-bending function, which can prevent the conductive sheet from bending during crimping, is characterized in that Comprising: A fixed seat (1); A crimping drive mechanism (2), the crimping drive mechanism (2) being fixedly installed on the fixed seat (1), and a downward telescopic end (21) adapted to stretch and contract being provided on the crimping drive mechanism (2); An outer sheath drive mechanism (3), the outer sheath drive mechanism (3) being fixedly installed on the side surface of the fixed seat (1), and a lifting telescopic end (31) adapted to stretch and contract being provided on the outer sheath drive mechanism (3); A conductive sheet, the conductive sheet comprising a conductive sheet body (41), a connecting sheet (42), and a connecting section connecting the conductive sheet body (41) and the connecting sheet (42); A separating sleeve (5), the separating sleeve (5) being rotatably arranged in the fixed seat (1), and the separating sleeve (5) being of a hollow structure; A crimping transmission shaft (6), the crimping transmission shaft (6) being movably installed in the separating sleeve (5), and the upper end of the crimping transmission shaft (6) being hinged to the downward telescopic end (21) of the crimping drive mechanism (2); A conductive sheet body anti-bending sleeve (7), the upper end of the conductive sheet body anti-bending sleeve (7) abutting against the lower end of the separating sleeve (5), a slotted groove (711) being provided at the upper end of the conductive sheet body anti-bending sleeve (7), and at least one protective groove adapted to slidably fit the conductive sheet body (41) being provided at the lower end of the conductive sheet body anti-bending sleeve (7); A square pin (8), the square pin (8) being slidably arranged in the slotted groove (711), and the square pin (8) being fixedly connected to the crimping transmission shaft (6); A crimping sleeve (9), the crimping sleeve (9) being sleeved outside the conductive sheet body anti-bending sleeve (7), a wire pressing rod (91) being provided on the crimping sleeve (9), and a raised outer ring being provided at the upper end of the crimping sleeve (9), the outer ring being fixedly connected to the square pin (8); An outer sheath (10), the outer sheath (10) being slidably installed outside the separating sleeve (5), the outer sheath (10) being connected to the lifting telescopic end (31) of the outer sheath drive mechanism (3), and at least one protective groove adapted to cooperate with the connecting sheet (42) being provided at the lower end of the outer sheath (10); Wherein, after the conductive sheet body (41) is slidably fitted in the protective groove of the conductive sheet body anti-bending sleeve (7), the crimping drive mechanism (2) is adapted to drive the crimping sleeve (9) to move downward through the crimping transmission shaft (6), so that the wire pressing rod (91) of the crimping sleeve (9) abuts against the connecting section of the conductive sheet; The outer sheath drive mechanism (3) is adapted to drive the outer sheath (10) to move downward when the wire pressing rod (91) abuts against the connecting section of the conductive sheet, so that the protective groove is slidably fitted on the connecting sheet (42).

2. The motor insert crimping device with an anti-bending function according to claim 1, wherein The outer sheath drive mechanism (3) comprises: At least one cylinder, the cylinder being fixed on the fixed seat (1), and the cylinder being provided with a telescopic rod; The lifting telescopic end (31) is arranged on the telescopic rod; The lifting and telescopic end (31) of the cylinder is connected to the outer sheath (10), and the cylinder is adapted to drive the outer sheath (10) to move up and down.

3. The motor insert pressing device with anti-bending function according to claim 2, characterized in that There are a pair of the cylinders, and the pair of cylinders are respectively installed on both sides of the fixed seat (1).

4. The motor insert pressing device with anti-bending function according to claim 1, characterized in that The crimping drive mechanism (2) includes: A first cylinder, which is fixedly installed on the fixed seat (1).

5. The motor insert pressing device with anti-bending function according to claim 1, characterized in that It further includes a reset monitoring component, and the reset monitoring component includes: A proximity sensor (71), which is fixedly installed at a preset position on the fixed seat (1); A trigger member (72), which is fixedly installed on the crimping transmission shaft (6); When the crimping transmission shaft (6) rotates to a predetermined position, the proximity sensor (71) is adapted to be triggered by the trigger member (72) on the crimping transmission shaft (6) to emit an induction signal.

6. The motor insert pressing device with anti-bending function according to claim 1, characterized in that There are three protective grooves uniformly arranged circumferentially along the inner wall of the outer sheath (10); Each of the protective grooves extends axially along the outer sheath (10).

7. The motor insert pressing device with anti-bending function according to claim 1, characterized in that It further includes an outer sheath movement limiting component, and the outer sheath movement limiting component includes: An axially elongated waist groove is provided on the side wall of the outer sheath (10); A radial pin groove is provided on the outer peripheral surface of the separating sleeve (5); A limit pin (12), which is fixedly installed in the radial pin groove of the separating sleeve (5), and the free end of the limit pin (12) extends through the axially elongated waist groove of the outer sheath (10), and the limit pin (12) is adapted to slide axially in the axially elongated waist groove.

8. The motor insert pressing device with anti-bending function according to claim 1, characterized in that The free end of the wire pressing rod (91) is provided with an arc transition portion, and the cross-sectional area of the wire pressing rod (91) gradually increases upward from the free end.

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