Hall element pin bending tool

Abstract

The invention relates to the technical field of electronic component assembling tools, in particular to a Hall element pin bending tool which comprises an upper die, a lower die and a pressing head, first bosses are arranged on the two sides of the bottom of the upper die, grooves matched with the first bosses are formed in the lower die, a containing cavity is formed in the groove of the lower die, and the pressing head is arranged in the containing cavity. The side face of the upper die is provided with a vertically-downward first side edge groove, the side face of the lower die is provided with a second side edge groove corresponding to a pin of the Hall element, the first side edge groove corresponds to the second side edge groove in position, and the pressing head is provided with protrusions matched with the first side edge groove and the second side edge groove. The second side edge groove extends to the upper surface of the lower die to be communicated with the containing cavity, the corner of the side face part and the upper surface part of the second side edge groove is a rounded corner, when the tool is used for bending the base pin, displacement of the base pin is avoided, the consistency of the bending angle of the base pin can be guaranteed, the situation that the base pin is broken due to stress concentration can be effectively avoided, and the production efficiency is improved. The structure is reliable, the product qualification rate is high, and operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of electronic component assembly tooling, and in particular to a Hall element pin bending tooling. Background Art

[0002] The Hall element is a sensor based on the Hall effect that can detect magnetic fields and their changes. It can be used in various occasions related to magnetic fields. It is used to detect magnetic field changes in automotive electronics, industrial automation control, aviation industry electronics and other fields to achieve accurate position and speed measurement.

[0003] Hall elements generally have three or more pins. In the existing Hall element assembly process, the pins of the Hall element often need to be bent. Pin bending is a key link. Traditional bending has problems such as low processing accuracy, operating load, and low efficiency. Especially in mass production, unreasonable tooling design can easily lead to poor consistency of the bending angle of the Hall element pins and stress concentration causing pin breakage, which not only affects the product qualification rate, but also increases production costs. Summary of the invention

[0004] In order to solve the problems mentioned in the above background technology, the present invention provides a Hall element pin bending tool to solve the problems of poor bending angle consistency and breakage of the Hall element pins.

[0005] The present invention discloses the following technical scheme: a Hall element pin bending tooling, comprising an upper die, a lower die and a pressing head, wherein the upper die is provided with first bosses on both sides of the bottom, the lower die is provided with a groove matching with the first boss, the groove of the lower die is provided with a accommodating cavity, the upper die side is provided with a first side groove vertically downward, the lower die side is provided with a second side groove corresponding to the pin of the Hall element, the first side groove corresponds to the second side groove in position, the pressing head is provided with a protrusion matching with the first side groove and the second side groove, the second side groove extends to the upper surface of the lower die and is connected with the accommodating cavity, and the corners between the side portion and the upper surface portion of the second side groove are rounded.

[0006] Furthermore, a second boss is provided at a position on the bottom of the upper mold corresponding to the first side groove.

[0007] Furthermore, the depth of the accommodating cavity of the lower mold is consistent with the height of the Hall element.

[0008] Furthermore, the depth of the first side groove is less than the depth of the second side groove.

[0009] Furthermore, the thickness of the protrusion on the pressure head is smaller than the depth of the second side groove.

[0010] Beneficial effects: Compared with the prior art, the Hall element pin bending tooling of the present invention presses the Hall element by setting an upper die and a lower die, and bends the pins of the Hall element by sliding the pressure head in the side grooves of the upper die and the lower die. The pins will not be displaced during bending, ensuring the consistency of the bending angles of multiple pins. The side surfaces of the side grooves of the lower die and the corners of the upper surface are rounded, which can effectively prevent the pins from breaking due to stress concentration. The tooling structure is reliable, the product qualification rate is high, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the Hall element pin bending tooling of the present invention; Figure 2 It is a left side cross-sectional view of the bent pin tooling of the Hall element of the present invention; Figure 3 It is a schematic diagram of the upper mold structure of the Hall element pin bending tooling of the present invention; Figure 4 It is a schematic diagram of the lower mold structure of the Hall element pin bending tooling of the present invention; In the figure: 1-upper die, 11-first boss, 12-second boss, 13-first side groove, 2-lower die, 21-groove, 22-second side groove, 3-pressing head, 4-Hall element. DETAILED DESCRIPTION

[0012] like Figures 1 to 4 As shown, a Hall element pin bending tool comprises an upper die 1, a lower die 2 and a pressing head 3, the upper die 1 is provided with first bosses 11 on both sides of the bottom, the lower die 2 is provided with a groove 21 matched with the first boss 11, the groove 21 of the lower die 2 is provided with a receiving cavity for placing the Hall element 4, the upper die 1 is provided with a first side groove 13 vertically downward on the side, the lower die 2 is provided with a second side groove 22 corresponding to the pin of the Hall element 4 on the side, the first side groove 13 and the second side groove 22 are corresponding in position, the pressing head 3 is provided with a protrusion matched with the first side groove 13 and the second side groove 22, the pressing head 3 can slide in the first side groove 13 and the second side groove 22 to bend the pin of the Hall element 4, the second side groove 22 extends to the upper surface of the lower die 2 and is connected with the receiving cavity, the corners of the side portion and the upper surface portion of the second side groove 22 are rounded, and the rounded corner design can ensure that the pin will not break due to stress concentration when bending.

[0013] A second boss 12 is provided at the bottom of the upper mold 1 at a position corresponding to the first side groove 13. When the upper mold 1 is combined with the lower mold 2, the second boss 12 extends into the second side groove 22 on the upper surface of the lower mold 2 to press the pins to prevent them from moving. The depth of the accommodating cavity of the lower mold 2 is consistent with the height of the Hall element 4, so that the upper mold 1 and the lower mold 2 press the Hall element 4 without displacement, thereby ensuring the bending consistency of multiple pins. The depth of the first side groove 13 is less than the depth of the second side groove 22, thereby ensuring that the ram 3 slides vertically downward and the bending angle of the pins is ensured. The thickness of the protrusion on the ram 3 is less than the depth of the second side groove 22, thereby ensuring that the pins are bent into the second side groove 22 without affecting the sliding of the ram 3.

[0014] When in use, the Hall element 4 is placed in the accommodating cavity of the lower mold 2, the first boss 11 of the upper mold 1 cooperates with the groove 21 of the lower mold 2, and the second boss 12 of the upper mold 1 cooperates with the second side groove 22 to press the body and the pin of the Hall element 4, while ensuring that the first side groove 13 corresponds to the second side groove 21 to form a slide groove, and the pressure head 3 is used to slide from top to bottom along the first side groove 13, and the bottom of the pressure head 3 continues to slide downward when it slides to the pin, and the protrusion of the pressure head 3 enters the second side groove 22 to bend the pin into the second side groove 22 to form a bending angle of 90° to complete the bending of the pin of the Hall element 4. In this process, the upper mold 1 and the lower mold 2 press the Hall element 4 to ensure that the pin will not be displaced. The rounded corners of the second side groove 22 can ensure that the pin will not break due to stress concentration when bent. The tooling structure of the present invention is reliable, the product qualification rate is high, and the operation is convenient.

[0015] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A Hall element pin bending tool, characterized in that: The invention comprises an upper die (1), a lower die (2) and a pressing head (3), wherein first bosses (11) are provided on both sides of the bottom of the upper die (1), the lower die (2) is provided with a groove (21) matched with the first boss (11), a receiving cavity is provided in the groove (21) of the lower die (2), a first side groove (13) vertically downward is provided on the side of the upper die (1), a second side groove (22) corresponding to the pin of the Hall element (4) is provided on the side of the lower die (2), the first side groove (13) and the second side groove (22) are located at corresponding positions, a protrusion matched with the first side groove (13) and the second side groove (22) is provided on the pressing head (3), the second side groove (22) extends to the upper surface of the lower die (2) and communicates with the receiving cavity, and the corners between the side portion and the upper surface portion of the second side groove (22) are rounded.

2. According to claim 1, it is characterized in that: A second boss (12) is provided at a position on the bottom of the upper mold (1) corresponding to the first side groove (13).

3. According to claim 1, it is characterized in that: The depth of the accommodating cavity of the lower mold (2) is consistent with the height of the Hall element (4).

4. The method according to claim 1, characterized in that: The depth of the first side groove (13) is less than the depth of the second side groove (22).

5. The method according to claim 1, characterized in that: The thickness of the protrusion on the pressure head (3) is smaller than the depth of the second side groove (22).

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