Resistor carrier, resistor pin bending system and resistor pin bending method

Abstract

The invention discloses a resistor carrier, a resistor pin bending system and a resistor pin bending method. The resistor carrier comprises a support body which is strip-shaped and has two opposite sides in the width direction of the support body; and the retaining structure is positioned on the top surface of the support body and is used for retaining the resistor body of the resistor. When the resistor body of the resistor is held in the holding structure, a pair of pins of the resistor are suspended above the top surface of the supporting body and extend out of the two sides of the supporting body respectively, so that the pins of the resistor are allowed to be bent relative to the resistor body. According to the resistor pin bending system, automatic bending of the resistor pin can be achieved, the resistor pin bending efficiency is improved, automatic flow line production of electronic products can be achieved, and the production efficiency of the electronic products is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a resistance carrier, a resistance lead bending system including the resistance carrier, and a method of bending electronic leads using the resistance lead bending system. BACKGROUND

[0002] In the prior art, resistance leads of resistance products usually need to be bent into a predetermined shape. In the prior art, no device for automatically bending resistance leads is implemented, and manual bending is required. Usually, a worker needs to first insert a resistance lead into a special mold, and then bend the resistance lead by force. This manual bending of resistance leads has the problems of low efficiency and high cost, and cannot be integrated into an automated production line, thereby reducing the production efficiency of electronic products. SUMMARY

[0003] The present application aims to solve at least one of the above problems and defects in the prior art.

[0004] According to one aspect of the present application, a resistance carrier is provided. The resistance carrier includes a support body in a strip shape and having opposite sides in a width direction thereof, and a holding structure on a top surface of the support body for holding a resistance body of a resistance. When the resistance body of the resistance is held in the holding structure, a pair of leads of the resistance is suspended above the top surface of the support body and respectively extends from the opposite sides of the support body to allow the leads of the resistance to be bent with respect to the resistance body.

[0005] According to one exemplary embodiment of the present application, the holding structure includes a front holding body and a rear holding body opposite in a length direction of the support body, and the resistance body is adapted to be held between the front holding body and the rear holding body.

[0006] According to another exemplary embodiment of the present application, the rear holding body has a pair of shaped portions opposite in the width direction of the support body, and outer sides of the pair of shaped portions of the rear holding body are respectively shaped into predetermined shapes and used to respectively abut on the pair of leads after being bent to ensure that the pair of leads is bent into the predetermined shapes.

[0007] According to another exemplary embodiment of the present application, a front positioning groove for accommodating and positioning a portion of the resistance body is formed in the front holding body; and / or a rear positioning groove for accommodating and positioning another portion of the resistance body is formed in the rear holding body.

[0008] According to another exemplary embodiment of the present application, a plurality of holding structures are provided on the support body, and the plurality of holding structures are spaced apart in the length direction of the support body for respectively holding a plurality of resistances.

[0009] According to another aspect of the present application, there is provided a resistance lead bending system. The resistance lead bending system comprises: the aforementioned resistance carrier; a conveying device for conveying the resistance carrier and a resistance held on the resistance carrier to a bending station; and a bending device provided at the bending station for bending a lead of the resistance conveyed to the bending station.

[0010] According to an exemplary embodiment of the present application, the resistance lead bending system has a plurality of bending stations arranged sequentially and spaced apart in a conveying direction of the resistance carrier; and the resistance lead bending system comprises a plurality of bending devices respectively provided at the plurality of bending stations for bending the lead of the resistance step by step.

[0011] According to another exemplary embodiment of the present application, the bending stations include a first bending station, and the bending devices include a first bending device provided at the first bending station for bending the lead of the resistance to a first bent shape.

[0012] According to another exemplary embodiment of the present application, the lead of the resistance has a connecting end portion for electrically connecting with a terminal, and the first bending device is configured to bend the connecting end portion of the lead by a first angle with respect to the resistance body.

[0013] According to another exemplary embodiment of the present application, the bending stations further include a second bending station provided downstream of the first bending station, and the bending devices further include a second bending device provided at the second bending station for bending the lead of the resistance from the first bent shape to a second bent shape.

[0014] According to another exemplary embodiment of the present application, the lead of the resistance has a root portion adjacent to the resistance body, and the second bending device is configured to bend the root portion of the lead by a second angle with respect to the resistance body.

[0015] According to another exemplary embodiment of the present application, the bending stations further include a third bending station provided downstream of the second bending station, and the bending devices further include a third bending device provided at the third bending station for bending the lead of the resistance from the second bent shape to a third bent shape.

[0016] According to another exemplary embodiment of the present application, the third bending device is configured to further bend the root portion of the lead by a third angle with respect to the resistance body from the second angle.

[0017] According to another exemplary embodiment of the present invention, the first angle is greater than zero degrees and less than 60 degrees, the second angle is equal to 90 degrees, and the third angle is greater than 90 degrees and less than 150 degrees.

[0018] According to another exemplary embodiment of the present invention, the third bending device includes a pair of push blocks with forming grooves formed on the push blocks, and the leads of the resistor are adapted to be pressed between the inner side of the forming groove of the push block and the outer side of the forming portion of the rear retainer of the resistor carrier to bend the leads into the third bending shape.

[0019] According to another exemplary embodiment of the present invention, the resistor lead bending system further includes: a loading device disposed at a loading station located upstream of the bending station.

[0020] The loading device is used to load the resistor onto the resistor carrier.

[0021] According to another exemplary embodiment of the present invention, the conveying device includes: an upper conveying device for conveying a resistor carrier loaded with resistors from an initial loading station to a bending station; and a lower conveying device disposed below the upper conveying device for conveying an empty resistor carrier on which the resistors have been unloaded to the initial loading station.

[0022] According to another exemplary embodiment of the present invention, the conveying device further includes: a front lifting device disposed between the front ends of the upper conveying device and the lower conveying device, for conveying the resistor carrier downward from the upper conveying device to the lower conveying device; and a rear lifting device disposed between the rear ends of the upper conveying device and the lower conveying device, for conveying the resistor carrier upward from the lower conveying device to the upper conveying device.

[0023] According to another aspect of the present invention, a method for bending resistor leads is provided. The method for bending resistor leads includes the following steps:

[0024] S10: Provides the aforementioned resistor pin bending system;

[0025] S20: At the loading station of the resistor pin bending system, the resistor body of the resistor product is held onto the resistor carrier, wherein the resistor product includes a resistor and a pair of terminals respectively pressed onto the connection ends of a pair of pins of the resistor.

[0026] S30: The resistor carrier and the resistor product held thereon are transported from the loading station to the first bending station and the leads of the resistor are bent into a first bending shape using a first bending device provided at the first bending station.

[0027] S40: delivering the resistance carrier and the resistance product held thereon from the first bending station to a second bending station and bending the pins of the resistance from the first bending shape to a second bending shape by using a second bending device arranged at the second bending station; and

[0028] S50: delivering the resistance carrier and the resistance product held thereon from the second bending station to a third bending station and bending the pins of the resistance from the second bending shape to a third bending shape by using a third bending device arranged at the third bending station.

[0029] According to an exemplary embodiment of the present application, the resistance pin bending method further comprises the following steps:

[0030] S60: unloading the resistance product from the resistance carrier; and

[0031] S70: delivering the empty resistance carrier on which the resistance product has been unloaded to the initial loading station.

[0032] According to another exemplary embodiment of the present application, in the step S30, the first bending device bends the connecting end of the pin of the resistance relative to the resistance body by a first angle by pushing the terminal.

[0033] In the foregoing exemplary embodiments according to the present application, the resistance pin bending system can realize automatic bending of the resistance pin, improve the resistance pin bending efficiency, realize automatic flow line production of electronic products, and greatly improve the production efficiency of electronic products.

[0034] Other objects and advantages of the present application will be more fully apparent from the following description taken in conjunction with the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 FIG. 1 shows a perspective schematic view of a resistance carrier according to an exemplary embodiment of the present application, in which the pins of the resistance held on the resistance carrier have not been bent;

[0036] Figure 2 FIG. 2 shows a partial enlarged schematic view of the resistance carrier according to an exemplary embodiment of the present application, in which the pins of the resistance held on the resistance carrier have not been bent;

[0037] Figure 3 FIG. 3 shows a partial enlarged schematic view of the resistance carrier according to an exemplary embodiment of the present application, in which the pins of the resistance held on the resistance carrier have been bent;

[0038] FIG. 4 shows a flow chart of a resistance pin bending method according to an exemplary embodiment of the present application;Figure 4 a schematic view showing a resistance according to an exemplary embodiment of the present application, in which a pin of the resistance has not yet been bent;

[0039] Figure 5 a schematic view showing a resistance product according to an exemplary embodiment of the present application, in which a pair of terminals are respectively crimped to a pair of pins of the resistance;

[0040] Figure 6 a schematic view showing a resistance product according to an exemplary embodiment of the present application, in which a pair of pins of the resistance are bent to a first bent shape;

[0041] Figure 7 a schematic view showing a resistance product according to an exemplary embodiment of the present application, in which a pair of pins of the resistance are bent to a second bent shape from Figure 6 a first bent shape shown;

[0042] Figure 8 a schematic view showing a third bending device and a resistance carrier according to an exemplary embodiment of the present application, in which a pair of pins of the resistance are bent to a third bent shape by the third bending device and the resistance carrier together;

[0043] Figure 9 a schematic view showing a resistance product according to an exemplary embodiment of the present application, in which a pair of pins of the resistance are bent to a third bent shape from Figure 7 a second bent shape shown;

[0044] Figure 10 a schematic view showing a resistance pin bending system according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0045] The technical solutions of the present application will be further described below by way of examples in conjunction with the accompanying drawings. In the description, identical or similar reference numerals indicate identical or similar components. The following description of the embodiments of the present application with reference to the drawings is intended to explain the general inventive concept of the present application, and should not be understood as a limitation of the present application.

[0046] In addition, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it will be apparent to one of ordinary skill in the art that one or more embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to simplify the drawings.

[0047] According to one general inventive concept, there is provided a resistance carrier. The resistance carrier includes a support body in a strip shape having opposite sides in a width direction thereof, and a holding structure on a top surface of the support body for holding a resistance body of a resistance. When the resistance body of the resistance is held in the holding structure, a pair of pins of the resistance are suspended above the top surface of the support body and extend from the opposite sides of the support body, respectively, to allow the pins of the resistance to be bent with respect to the resistance body.

[0048] According to another general inventive concept, there is provided a resistance pin bending system. The resistance pin bending system includes the aforementioned resistance carrier, a conveying device for conveying the resistance carrier and the resistance held on the resistance carrier to a bending station, and a bending device provided at the bending station for bending the pins of the resistance conveyed to the bending station.

[0049] According to another general inventive concept, there is provided a resistance pin bending method. The resistance pin bending method includes providing the aforementioned resistance pin bending system, holding a resistance body of a resistance of a resistance product to a resistance carrier at a loading station of the resistance pin bending system, wherein the resistance product includes the resistance and a pair of terminals crimped to connection end portions of a pair of pins of the resistance, respectively, conveying the resistance carrier and the resistance product held thereon from the loading station to a first bending station and bending the pins of the resistance to a first bent shape using a first bending device provided at the first bending station, conveying the resistance carrier and the resistance product held thereon from the first bending station to a second bending station and bending the pins of the resistance from the first bent shape to a second bent shape using a second bending device provided at the second bending station, and conveying the resistance carrier and the resistance product held thereon from the second bending station to a third bending station and bending the pins of the resistance from the second bent shape to a third bent shape using a third bending device provided at the third bending station.

[0050] Figure 1 A perspective view schematically showing a resistance carrier 1 according to an exemplary embodiment of the present invention, in which pins 21 of a resistance 2 held on the resistance carrier 1 have not yet been bent;

[0051] Figure 2 A perspective view schematically showing a resistance carrier 1 according to an exemplary embodiment of the present invention, in which pins 21 of a resistance 2 held on the resistance carrier 1 have not yet been bent; Figure 3 A perspective view schematically showing a resistance carrier 1 according to an exemplary embodiment of the present invention, in which pins 21 of a resistance 2 held on the resistance carrier 1 have not yet been bent; Figure 4A schematic view showing a resistor 2 according to an exemplary embodiment of the present application, in which a pair of leads 21 of the resistor 2 has not yet been bent; Figure 5 A schematic view showing a resistor product according to an exemplary embodiment of the present application, in which a pair of terminals 3 is respectively crimped to a pair of leads 21 of a resistor 2; Figure 6 A schematic view showing a resistor product according to an exemplary embodiment of the present application, in which a pair of leads 21 of a resistor 2 is bent to a first bent shape by a first bending device 51; Figure 7 A schematic view showing a resistor product according to an exemplary embodiment of the present application, in which a pair of leads 21 of a resistor 2 is bent to a second bent shape from Figure 6 the first bent shape shown; Figure 8 A schematic view showing a third bending device 53 and a resistor carrier 1 according to an exemplary embodiment of the present application, in which a pair of leads 21 of a resistor 2 is bent to a third bent shape by the third bending device 53 and the resistor carrier 1 together; Figure 9 A schematic view showing a resistor product according to an exemplary embodiment of the present application, in which a pair of leads 21 of a resistor 2 is bent to a third bent shape from Figure 7 the second bent shape shown; Figure 10 A schematic view showing a resistor lead bending system according to an exemplary embodiment of the present application.

[0052] As Figures 1 to 10 shown in the illustrated embodiment, a resistor carrier 1 is disclosed in an exemplary embodiment of the present application. The resistor carrier 1 includes a support body 100 and a holding structure 10. The support body 100 is in a strip shape and has two sides opposite in a width direction thereof. The holding structure 10 is located on a top surface of the support body 100 for holding a resistor body 20 of a resistor 2. When the resistor body 20 of the resistor 2 is held in the holding structure 10, a pair of leads 21 of the resistor 2 is suspended above the top surface of the support body 100 and respectively extends out from the two sides of the support body 100 to allow the leads 21 of the resistor 2 to be bent relative to the resistor body 20.

[0053] As Figures 1 to 10 shown in the illustrated embodiment, the holding structure 10 includes a front holding body 11 and a rear holding body 12 opposite in a length direction of the support body 100, and the resistor body 20 is adapted to be held between the front holding body 11 and the rear holding body 12.

[0054] As Figures 1 to 10 shown in the illustrated embodiment, the rear holding body 12 has a pair of shaped portions 12a opposite in the width direction of the support body 100, and outer sides of the pair of shaped portions 12a of the rear holding body 12 are respectively shaped into a predetermined shape and are respectively used to abut against the pair of leads 21 after being bent to ensure that the pair of leads 21 is bent into the predetermined shape.

[0055] like Figures 1 to 10 As shown in the illustrated embodiment, a front positioning groove for receiving and positioning a portion of the resistor 20 is formed in the front retainer 11. A rear positioning groove for receiving and positioning another portion of the resistor 20 is formed in the rear retainer 12.

[0056] like Figures 1 to 10 As shown in the illustrated embodiment, a plurality of retaining structures 10 are provided on the support 100, and the plurality of retaining structures 10 are spaced apart in the length direction of the support 100 to retain a plurality of resistors 2 respectively.

[0057] like Figures 1 to 10 As shown, in another exemplary embodiment of the present invention, a resistor lead bending system is also disclosed. The resistor lead bending system includes: a resistor carrier 1, a conveying device 4, and a bending device 5. The conveying device 4 is used to convey the resistor carrier 1 and a resistor 2 held on the resistor carrier 1 to a bending station. The bending device 5 is disposed at the bending station and is used to bend the leads 21 of the resistor 2 conveyed to the bending station.

[0058] like Figures 1 to 10 As shown in the illustrated embodiment, the resistor lead bending system has multiple bending stations arranged sequentially and at intervals along the conveying direction of the resistor carrier 1. The resistor lead bending system includes multiple bending devices 5, which are respectively disposed at the multiple bending stations for gradually bending the leads 21 of the resistor 2.

[0059] like Figures 1 to 10 As shown in the illustrated embodiment, the bending station includes a first bending station, and the bending device 5 includes a first bending device 51 disposed at the first bending station. The first bending device 51 is used to bend the pin 21 of the resistor 2 into a first bending shape.

[0060] like Figures 1 to 10 As shown, in the illustrated embodiment, the pin 21 of the resistor 2 has a connection end 21a for electrical connection with the terminal 3, and the first bending device 51 is used to bend the connection end 21a of the pin 21 such that the connection end 21a of the pin 21 is bent at a first angle relative to the resistor body 20.

[0061] like Figures 1 to 10 As shown in the illustrated embodiment, the bending station further includes a second bending station located downstream of the first bending station, and the bending device 5 further includes a second bending device 52 located at the second bending station. The second bending device 52 is used to bend the pin 21 of the resistor 2 from the first bending shape to the second bending shape.

[0062] like Figures 1 to 10As shown, in the illustrated embodiment, the pin 21 of the resistor 2 has a root 21b adjacent to the resistor body 20, and the second bending device 52 is configured to bend the root 21b of the pin 21 such that the root 21b of the pin 21 is bent by a second angle relative to the resistor body 20.

[0063] As shown, in the illustrated embodiment, the bending station further comprises a third bending station arranged downstream of the second bending station, and the bending device 5 further comprises a third bending device 53 arranged at the third bending station, the third bending device 53 being configured to bend the pin 21 of the resistor 2 from the second bent shape to a third bent shape. Figures 1 to 10 As shown, in the illustrated embodiment, the third bending device 53 is configured to further bend the root 21b of the pin 21 such that the root 21b of the pin 21 is bent by a third angle relative to the resistor body 20 from the second angle.

[0064] Figures 1 to 10 As shown, in the illustrated embodiment, the first angle is greater than zero degree and less than 60 degrees, the second angle is equal to 90 degrees, and the third angle is greater than 90 degrees and less than 150 degrees.

[0065] As shown, in the illustrated embodiment, the third bending device 53 comprises a pair of pushing blocks 530, and a shaped groove 53a is formed on each pushing block 530, the pin 21 of the resistor 2 being adapted to be squeezed between the inner side of the shaped groove 53a of the pushing block 530 and the outer side of the shaped portion 12a of the rear holding body 12 of the resistor carrier 1 to bend the pin 21 into the third bent shape. Figures 1 to 10 As shown, in the illustrated embodiment, the resistor pin bending system further comprises a loading device 6 arranged at a loading station upstream of the bending station, the loading device 6 being configured to load the resistor 2 onto the resistor carrier 1.

[0066] Figures 1 to 10 As shown, in the illustrated embodiment, the conveying device 4 comprises an upper conveying device 41 and a lower conveying device 42. The upper conveying device 41 is configured to convey the resistor carrier 1 having the resistor 2 loaded thereon from the initial loading station to the bending station. The lower conveying device 42 is arranged below the upper conveying device 41 and is configured to convey the empty resistor carrier 1 having the resistor 2 unloaded thereon to the initial loading station.

[0067] As shown, in the illustrated embodiment, the resistor pin bending system further comprises a loading device 6 arranged at a loading station upstream of the bending station, the loading device 6 being configured to load the resistor 2 onto the resistor carrier 1. Figures 1 to 10 As shown, in the illustrated embodiment, the conveying device 4 comprises an upper conveying device 41 and a lower conveying device 42. The upper conveying device 41 is configured to convey the resistor carrier 1 having the resistor 2 loaded thereon from the initial loading station to the bending station. The lower conveying device 42 is arranged below the upper conveying device 41 and is configured to convey the empty resistor carrier 1 having the resistor 2 unloaded thereon to the initial loading station.

[0068] Figures 1 to 10 As shown, in the illustrated embodiment, the resistor pin bending system further comprises a loading device 6 arranged at a loading station upstream of the bending station, the loading device 6 being configured to load the resistor 2 onto the resistor carrier 1.

[0069] As shown, in the illustrated embodiment, the resistor pin bending system further comprises a loading device 6 arranged at a loading station upstream of the bending station, the loading device 6 being configured to load the resistor 2 onto the resistor carrier 1. Figures 1 to 10 ​​​As shown in the illustrated embodiment, the conveying device 4 further includes a front lifting device 43 and a rear lifting device 44. The front lifting device 43 is disposed between the front ends of the upper conveying device 41 and the lower conveying device 42, and is used to convey the resistor carrier 1 downward from the upper conveying device 41 to the lower conveying device 42. The rear lifting device 44 is disposed between the rear ends of the upper conveying device 41 and the lower conveying device 42, and is used to convey the resistor carrier 1 upward from the lower conveying device 42 to the upper conveying device 41.

[0070] like Figures 1 to 10 As shown, in another exemplary embodiment of the present invention, a method for bending resistor leads is also disclosed. This method for bending resistor leads includes the following steps:

[0071] S10: Provides the aforementioned resistor pin bending system;

[0072] S20: At the loading station of the resistor lead bending system, the resistor body 20 of the resistor product 2 is held on the resistor carrier 1, wherein the resistor product includes the resistor 2 and a pair of terminals 3 respectively pressed onto the connection ends 21a of a pair of leads 21 of the resistor 2.

[0073] S30: The resistor carrier 1 and the resistor product held thereon are transported from the loading station to the first bending station and the lead 21 of the resistor 2 is bent into a first bending shape using the first bending device 51 set at the first bending station.

[0074] S40: The resistor carrier 1 and the resistor product held thereon are conveyed from the first bending station to the second bending station, and the leads 21 of the resistor 2 are bent from the first bending shape to the second bending shape using the second bending device 52 provided at the second bending station; and

[0075] S50: The resistor carrier 1 and the resistor product held thereon are transported from the second bending station to the third bending station and the third bending device 53 set at the third bending station is used to bend the lead 21 of the resistor 2 from the second bending shape to the third bending shape.

[0076] like Figures 1 to 10 As shown in the illustrated embodiment, the aforementioned resistor lead bending method further includes the following steps:

[0077] S60: Remove the bent resistor product from resistor carrier 1; and

[0078] S70: Transport the empty resistor carrier 1, on which the resistor products have been unloaded, to the initial loading station.

[0079] like ​As shown, in the illustrated embodiment, in step S30, the first bending device 51 bends the connecting end portion 21a of the pin 21 of the resistor 2 with respect to the resistor body 20 by a first angle by pushing the terminal 3.

[0080] Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can make improvements on them, and the structures described in various embodiments can be freely combined without structural or principle conflicts, and these changes shall fall within the protection scope of the present application.

[0081] Although the present application has been described in conjunction with the preferred embodiments thereof, the embodiments disclosed in the drawings are intended to illustrate, not to limit, the preferred embodiments of the present application.

[0082] Although some embodiments of the general inventive concept have been shown and described, it is to be understood that changes can be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is to be circumscribed by the claims and their equivalents.

[0083] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Additionally, any reference signs in the claims should not be construed as limiting the scope of the application.

Claims

1. A resistance carrier, characterized by, The resistance carrier (1) according to any one of claims 1-5; a conveying device (4) for conveying the resistance carrier (1) and the resistors (2) held on the resistance carrier (1) to a bending station; and a bending device (5) provided at the bending station for bending the pins (21) of the resistors (2) conveyed to the bending station.

7. The resistance pin bending system according to claim 6, wherein: the resistance pin bending system has a plurality of bending stations arranged sequentially and at intervals in the conveying direction of the resistance carrier (1); the resistance pin bending system comprises a plurality of bending devices (5) respectively provided at the plurality of bending stations for gradually bending the pins (21) of the resistors (2).

8. The resistance pin bending system according to claim 7, wherein: ​ ​ ​ ​ ​ ​ 6. A resistance leg bending system characterized by, ​ ​ ​ ​ ​ ​ ​ ​ ​ The bending station comprises a first bending station, and the bending device (5) comprises a first bending device (51) arranged at the first bending station, the first bending device (51) being configured to bend the pin (21) of the resistor (2) to a first bent shape.

9. The resistor pin bending system according to claim 8, wherein: The pin (21) of the resistor (2) has a connection end portion (21a) configured to be electrically connected to the terminal (3), and the first bending device (51) is configured to bend the connection end portion (21a) of the pin (21) such that the connection end portion (21a) of the pin (21) is bent by a first angle relative to the resistor body (20).

10. The resistor pin bending system according to claim 9, wherein: The bending station further comprises a second bending station arranged downstream of the first bending station, and the bending device (5) further comprises a second bending device (52) arranged at the second bending station, the second bending device (52) being configured to bend the pin (21) of the resistor (2) from the first bent shape to a second bent shape.

11. The resistor pin bending system according to claim 10, wherein: The pin (21) of the resistor (2) has a root portion (21b) adjacent to the resistor body (20), and the second bending device (52) is configured to bend the root portion (21b) of the pin (21) such that the root portion (21b) of the pin (21) is bent by a second angle relative to the resistor body (20).

12. The resistor pin bending system according to claim 11, wherein: The bending station further comprises a third bending station arranged downstream of the second bending station, and the bending device (5) further comprises a third bending device (53) arranged at the third bending station, the third bending device (53) being configured to bend the pin (21) of the resistor (2) from the second bent shape to a third bent shape.

13. The resistor pin bending system according to claim 12, wherein: The third bending device (53) is configured to further bend the root portion (21b) of the pin (21) such that the root portion (21b) of the pin (21) is bent from the second angle to a third angle relative to the resistor body (20).

14. The resistor pin bending system according to claim 13, wherein: The first angle is greater than zero degrees and less than 60 degrees, the second angle is equal to 90 degrees, and the third angle is greater than 90 degrees and less than 150 degrees.

15. The resistor pin bending system according to claim 12, wherein: The third bending device (53) comprises a pair of pushing blocks (530) having a shaped groove (53a) formed thereon, and the pin (21) of the resistor (2) is adapted to be pressed between the inner side of the shaped groove (53a) of the pushing block (530) and the outer side of the shaped portion (12a) of the rear holding body (12) of the resistor carrier (1) to bend the pin (21) into the third bending shape.

16. The resistor pin bending system according to claim 6, characterized in that: The resistor pin bending system further comprises: a loading device (6) arranged at a loading station upstream of the bending stations, the loading device (6) being configured to load a resistor (2) onto the resistor carrier (1).

17. The resistor pin bending system according to claim 6, characterized in that: The conveying device (4) comprises: an upper conveying device (41) configured to convey the resistor carrier (1) loaded with the resistor (2) from the initial loading station to the bending stations; and a lower conveying device (42) arranged below the upper conveying device (41) and configured to convey the empty resistor carrier (1) whose resistor (2) has been unloaded from the initial loading station.

18. The resistor pin bending system according to claim 17, characterized in that: The conveying device (4) further comprises: a front lifting device (43) arranged between the front ends of the upper conveying device (41) and the lower conveying device (42) and configured to convey the resistor carrier (1) downward from the upper conveying device (41) to the lower conveying device (42); and a rear lifting device (44) arranged between the rear ends of the upper conveying device (41) and the lower conveying device (42) and configured to convey the resistor carrier (1) upward from the lower conveying device (42) to the upper conveying device (41).

19. A method of bending a resistance pin, comprising: comprising the steps of: S10: providing the resistor pin bending system according to any one of claims 6-18; S20: holding a resistor body (20) of a resistor (2) of a resistor product to a resistor carrier (1) at a loading station of the resistor pin bending system, wherein the resistor product comprises the resistor (2) and a pair of terminals (3) respectively crimped to a pair of connecting ends (21a) of a pair of pins (21) of the resistor (2); S30: conveying the resistor carrier (1) and the resistor product held thereon from the loading station to a first bending station and bending the pin (21) of the resistor (2) to a first bending shape by using a first bending device (51) arranged at the first bending station; S40: conveying the resistor carrier (1) and the resistor product held thereon from the first bending station to a second bending station and bending the pin (21) of the resistor (2) from the first bending shape to a second bending shape by using a second bending device (52) arranged at the second bending station; and S50: conveying the resistor carrier (1) and the resistor product held thereon from the second bending station to a third bending station and bending the pin (21) of the resistor (2) from the second bending shape to a third bending shape by using a third bending device (53) arranged at the third bending station. S50: The resistance carrier (1) and the resistance product held thereon are transported from the second bending station to a third bending station and the pins (21) of the resistance (2) are bent from the second bent shape to a third bent shape using a third bending device (53) provided at the third bending station.

20. The method of claim 19, wherein, Further comprising the steps of: S60: The resistance product that has been bent is unloaded from the resistance carrier (1); and S70: The empty resistance carrier (1) on which the resistance product has been unloaded is transported to the initial loading station.

21. The method of claim 19, wherein : In the step S30, the first bending device (51) bends the connecting end portion (21a) of the pin (21) of the resistance (2) relative to the resistance body (20) by a first angle by pushing the terminal (3).

Images