A T-type pin positioning and pressing device and pressing method

Abstract

This invention discloses a T-shaped pin positioning and pressing device and method, including a T-shaped housing pressing plate, a T-shaped positioning fixture, a T-shaped pressing lifting assembly, and a horizontal pressing assembly. The T-shaped housing pressing plate can press and position the top perimeter of the T-shaped housing located at the T-shaped pin positioning and pressing station. The T-shaped positioning fixture includes a T-shaped positioning plate, a T-shaped support slider, a T-shaped support slider driving assembly, and a horizontal pusher. The T-shaped positioning plate can extend into the inner cavity of the T-shaped housing and has T-shaped positioning grooves. The T-shaped support slider can slide left and right along a direction perpendicular to the T-shaped positioning grooves and has T-shaped through slots with the same number as the T-shaped positioning grooves and open at the top. The horizontal pusher, driven by the horizontal pressing assembly, can push all the T-shaped pins in the T-shaped positioning grooves for horizontal pressing. This invention can accurately, automatically, and consistently press several T-shaped pins into predetermined positions in the T-shaped pin holes of the T-shaped housing, resulting in a high pin qualification rate.

Description

Technical Field

[0001] This invention relates to the field of automatic pin insertion machine technology, and in particular to a T-type pin positioning and pressing device and pressing method. Background Technology

[0002] As a key component of modern automobiles, the pin insertion process plays a crucial role in the manufacturing of automotive actuators. Currently, the main challenges in handling T-pins in automotive actuator manufacturing include slow insertion speed. In semi-automatic insertion processes, the insertion speed of T-pins is limited, becoming a key factor affecting production efficiency. Furthermore, operators need to frequently manually operate the fixture to insert the T-pins, which not only increases the labor intensity of operators but may also affect production efficiency. At the same time, frequent manual operation may lead to human error, affecting the insertion accuracy of the T-pins and consequently impacting the performance of the automotive actuator.

[0003] To address these challenges, this invention proposes an innovative process method that aims to improve pin insertion efficiency through highly automated technology, achieving precise and rapid positioning of T-type pins and ensuring the accuracy and stability of pin insertion operations. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a T-pin positioning and pressing device and pressing method. The T-pin positioning and pressing device and pressing method can accurately and automatically press several T-pins into the T-pin holes of the T-shaped housing of the automotive actuator simultaneously, and ensure that each T-pin can be correctly and consistently inserted into the predetermined position, with a high pin qualification rate.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A T-shaped pin positioning and pressing device includes a T-shaped housing pressing plate, a T-shaped positioning fixture, a T-shaped pressing and lifting assembly, and a horizontal pressing assembly.

[0007] The T-type pin can be inserted into the T-type pin hole of the T-type housing. The T-type housing is located on the housing transmission line, and the housing transmission line has a T-type pin positioning and pressing station.

[0008] The T-shaped housing clamping plate is positioned directly above the T-shaped pin positioning and pressing station, and can be raised and lowered under the drive of the T-shaped pressing and lifting assembly to clamp and position the top of the T-shaped housing around the T-shaped pin positioning and pressing station.

[0009] The T-shaped housing clamping plate is provided with a T-shaped positioning opening groove, and the opening faces the T-shaped pin hole of the T-shaped housing.

[0010] The T-shaped positioning fixture includes a T-shaped positioning plate, a T-shaped support slider, a T-shaped support slider drive assembly, and a horizontal pusher.

[0011] The T-shaped positioning plate is located at the bottom of the T-shaped housing clamping plate directly below the T-shaped positioning opening slot, and can extend into the inner cavity of the T-shaped housing.

[0012] The T-shaped positioning plate is provided with T-shaped positioning slots that are equal in number and correspond one-to-one with the number of T-shaped pin holes. Each T-shaped positioning slot can position and place one T-shaped pin.

[0013] The T-shaped support slider is located at the front end of the T-shaped positioning plate facing the T-shaped pin hole, and can slide left and right in a direction perpendicular to the T-shaped positioning groove under the drive of the T-shaped support slider drive assembly.

[0014] The T-shaped support slider is provided with T-shaped through slots, the number of which is equal to the number of T-shaped positioning slots, and the top is open.

[0015] The horizontal push head is located on top of the T-shaped positioning plate and can contact the T-shaped pins in all the T-shaped positioning slots.

[0016] The horizontal clamping assembly is used to drive the horizontal movement of the horizontal pusher.

[0017] Each T-pin includes a horizontal part and a vertical part. The horizontal part is a horizontal insertion part that mates with the T-pin hole. The two ends of the vertical part are a T-shaped protrusion and an electrical interface part, respectively.

[0018] Each T-shaped positioning groove includes a convex guide groove, which can accommodate the T-shaped convex and guide the horizontal movement of the T-shaped convex.

[0019] The T-shaped support slider can support the front end of the connector, keeping the connector horizontal during horizontal movement.

[0020] Each T-shaped positioning groove also includes a T-shaped pin guide placement groove located at the top of the convex guide groove for guiding the placement of the T-shaped pin.

[0021] A support sliding groove is provided at the front end of the T-shaped positioning plate facing the T-shaped pin hole, and the support sliding groove is perpendicular to the T-shaped positioning groove.

[0022] The T-shaped support slider is installed inside the support sliding groove.

[0023] The T-shaped support slider drive assembly includes a positioning pin and a drive arm; the bottom end of the positioning pin is connected to one end of the T-shaped support slider, and the top end of the positioning pin is connected to the drive arm; the drive arm has a T-shaped pin positioning blocking surface.

[0024] A horizontal guide push rod is connected to the upper middle part of the horizontal push head. Horizontal return springs are provided on both sides of the horizontal guide push rod. The horizontal return springs can keep the horizontal push head at the top of the T-shaped positioning plate.

[0025] A method for positioning and pressing a T-type insert includes the following steps.

[0026] Step 1: Pressing the T-shaped housing: Driven by the T-shaped pressing and lifting assembly, the T-shaped housing pressing plate descends in height, thereby pressing and positioning the top and four sides of the T-shaped housing located at the T-shaped pin positioning and pressing station; at the same time, the T-shaped positioning plate carrying the T-shaped support slider extends into the inner cavity of the T-shaped housing; wherein, the T-shaped support slider faces the T-shaped pin hole of the T-shaped housing and is at the same height as the bottom surface of the T-shaped pin hole.

[0027] Step 2: Place T-pins: In each T-positioning slot of the T-positioning plate, a T-pin is placed using a pin press-fit transfer assembly; wherein, the T-shaped protrusion of the T-pin extends into the T-positioning slot and makes positioning contact with the bottom surface of the T-positioning slot, and the front end of the insertion part of the T-pin is placed on the T-support slider, keeping it horizontal, and the tip points towards the T-pin hole.

[0028] Step 3, T-pin press-fit: The horizontal pressing assembly drives the horizontal push head to move horizontally and contact the vertical part of all T-pins in all T-positioning slots; the horizontal push head continues to move forward horizontally, and the tip of the insertion part of each T-pin enters the corresponding T-pin hole to the set press-fit depth.

[0029] Step 4: T-shaped support slider sliding: Driven by the T-shaped support slider drive assembly, the T-shaped support slider slides along a direction perpendicular to the T-shaped positioning groove, so that the T-shaped through grooves of all T-shaped support sliders are connected to the corresponding T-shaped positioning grooves one by one.

[0030] Step 5, Secondary pressing of T-pins: The horizontal pressing assembly drives the horizontal pusher to continue moving horizontally forward until the vertical part of each T-pin passes through the T-slot of the corresponding T-support slider and has no contact with the T-positioning plate and the T-support slider; at this time, the insertion part of each T-pin is pressed into the corresponding T-pin hole.

[0031] Step 6, Positioning Reset: The horizontal clamping assembly and horizontal push head are reset, and the T-shaped support slider is reset, forming a block at the front end of each T-shaped positioning groove.

[0032] Step 7, T-shaped housing transfer: The T-shaped housing clamping plate rises and resets under the drive of the T-shaped pressing and lifting assembly, thereby contacting and pressing the T-shaped housing. The T-shaped housing that has been pressed is transferred to the next process. Repeat steps 1 to 7 to perform the positioning and pressing of the T-shaped pin in the next T-shaped housing to be pressed.

[0033] In step 2, each T-shaped positioning groove is provided with a flared opening T-shaped pin guide placement groove at the top to facilitate the positioning and placement of the T-shaped pin.

[0034] In step 4, the T-shaped support slider drive assembly includes a drive arm with a T-shaped pin positioning blocking surface. Before the T-shaped support slider drive assembly drives the T-shaped support slider to slide, the T-shaped pin positioning blocking surface can contact the horizontal push head to limit the first pressing position of the T-shaped pin in step 3. After the T-shaped support slider drive assembly drives the T-shaped support slider to slide, the T-shaped pin positioning blocking surface will release the positioning blocking with the horizontal push head.

[0035] In step 6, the horizontal clamping assembly and the horizontal push head are designed separately. After the horizontal clamping assembly is reset, the horizontal push head will automatically reset to the starting position away from the T-shaped pin hole under the action of its own spring force.

[0036] The present invention has the following beneficial effects: The T-shaped housing clamping plate of the present invention can clamp the T-shaped housing to be press-fitted with pins, which facilitates the subsequent pressing of T-shaped pins; the T-shaped positioning fixture of the present invention can position the T-shaped pins, so that the insertion part of each T-shaped pin is kept horizontal and the tip points to the T-shaped pin hole, and the front end of the insertion part of each T-shaped pin is placed on the T-shaped support slider to prevent deformation when the T-shaped pin enters the corresponding T-shaped pin hole, thereby ensuring assembly accuracy and success rate. In addition, the horizontal clamping component can press all T-shaped pins in each T-shaped housing synchronously at one time, so as to achieve high pressing consistency and high pass rate. Attached Figure Description

[0037] Figure 1 A schematic diagram of the structure of a T-type pin positioning and pressing device according to the present invention is shown.

[0038] Figure 2 The diagram shows a top view of the T-shaped positioning fixture in this invention.

[0039] Figure 3 This image shows a magnified view of a portion of the T-shaped positioning fixture after the T-shaped pin has been placed. Figure 1 .

[0040] Figure 4 This image shows a magnified view of a portion of the T-shaped positioning fixture after the T-shaped pin has been placed. Figure 2 .

[0041] Figure 5 The image shows a longitudinal cross-sectional view of the T-shaped positioning fixture after the T-shaped pin has been placed.

[0042] Figure 6 The diagram shows a structural schematic of the present invention when the T-shaped support slider slides to connect the T-shaped through groove and the T-shaped positioning groove.

[0043] Figure 7 A schematic diagram of the horizontal clamping assembly in this invention is shown.

[0044] Figure 8 A schematic diagram of the T-shaped insert in this invention is shown.

[0045] Figure 9 A schematic diagram of the T-shaped housing in this invention is shown.

[0046] Among them are:

[0047] 510. T-shaped housing clamping plate; 511. T-shaped positioning opening slot;

[0048] 520. T-shaped positioning fixture;

[0049] 521. T-shaped positioning plate; 521a. T-shaped positioning groove; 521b. Protrusion guide groove; 521c. T-shaped pin guide placement groove; 521d. Support sliding groove; 521e. Connecting plate;

[0050] 522. T-shaped support slider; 522a. T-shaped through slot; 522b. T-shaped support part;

[0051] 523. T-shaped support slider drive assembly; 523a. Positioning pin; 523b. Drive arm; 523c. Pin groove; 523d. Arm drive assembly;

[0052] 524. Horizontal push head; 524a. Horizontal guide push rod; 524b. Horizontal return spring; 524c. Return block;

[0053] 530. T-type press-fitting lifting assembly;

[0054] 540. Horizontal clamping assembly; 541. Horizontal pressure head; 542. Horizontal press-fit electric cylinder; 543. Horizontal press-fit guide rail; 544. Support frame;

[0055] 810. T-shaped housing; 811. T-shaped pin hole;

[0056] 840. Housing transmission line; 841. T-pin positioning and pressing station; 844. Housing tooling plate;

[0057] 910. T-pin; 911. T-shaped protrusion; 940. Plug-in part; 950. Electrical interface part; 960. Barb. Detailed Implementation

[0058] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0059] In the description of this invention, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this invention. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of this invention.

[0060] like Figure 8 As shown, each T-shaped pin 910 includes a horizontal part and a vertical part. The horizontal part is a horizontal insertion part 940 that mates with the T-shaped pin hole and is provided with several barbs 960. The two ends of the vertical part are a T-shaped protrusion 911 and an electrical interface part 950, respectively.

[0061] like Figure 9 As shown, the T-shaped housing 810 has several T-shaped pin holes 811 arranged in parallel. In this embodiment, four T-shaped pin holes are preferably arranged in parallel, and a T-shaped pin needs to be press-fitted into each T-shaped pin hole.

[0062] like Figure 1 As shown, the T-shaped housing is located on the housing transmission line 840. The housing transmission line has a housing loading station and a T-shaped pin positioning and pressing station 841. The housing transmission line transmits between the housing loading station and the T-shaped pin positioning and pressing station through the housing tooling plate 844.

[0063] like Figure 1 As shown, a T-shaped pin positioning and pressing device includes a T-shaped housing pressing plate 510, a T-shaped positioning fixture 520, a T-shaped pressing and lifting assembly 530, and a horizontal pressing assembly 540.

[0064] The T-shaped housing clamping plate is positioned directly above the T-shaped pin positioning and pressing station, and can be raised and lowered under the drive of the T-shaped pressing and lifting assembly to clamp and position the top of the T-shaped housing around the T-shaped pin positioning and pressing station.

[0065] like Figure 2 and Figure 3 As shown, the T-shaped housing clamping plate is provided with a T-shaped positioning opening groove 511, which has a top opening and a side opening, wherein the side opening faces the T-shaped pin hole of the T-shaped housing.

[0066] like Figures 2 to 6 As shown, the T-shaped positioning fixture includes a T-shaped positioning plate 521, a T-shaped support slider 522, a T-shaped support slider drive assembly 523, and a horizontal pusher 524.

[0067] The T-shaped positioning plate is preferably located at the bottom of the T-shaped housing clamping plate directly below the T-shaped positioning opening slot via two connecting plates 521e, and can extend into the inner cavity of the T-shaped housing. The bottom surface of the T-shaped positioning plate is provided with a clearance groove that mates with the inner cavity components of the T-shaped housing.

[0068] The T-shaped positioning plate is provided with T-shaped positioning slots 521a, which are equal in number and correspond one-to-one with the number of T-shaped pin holes. Each T-shaped positioning slot can position and place one T-shaped pin.

[0069] Each T-shaped positioning groove includes a protrusion guide groove 521b and a T-shaped pin guide placement groove 521c located at the top of the protrusion guide groove; wherein, the protrusion guide groove can accommodate the T-shaped protrusion and guide the horizontal movement of the T-shaped protrusion; the T-shaped pin guide placement groove is used for guiding the placement of the T-shaped pin.

[0070] Furthermore, the front end of the T-shaped positioning plate facing the T-shaped pin hole is preferably provided with a support sliding groove 521d, which is perpendicular to the T-shaped positioning groove.

[0071] The T-shaped support slider is disposed within the support sliding groove, preferably at the same height as the bottom surface of the T-shaped pin hole. Driven by the T-shaped support slider drive assembly, the T-shaped support slider can slide left and right in a direction perpendicular to the T-shaped positioning groove. The T-shaped support slider supports the front end of the connector, ensuring that the connector remains horizontal during horizontal movement.

[0072] Furthermore, the T-shaped support slider is provided with T-shaped through slots 522a, which are equal in number to the number of T-shaped positioning slots and open at the top. A T-shaped support part 522b is formed between two adjacent T-shaped through slots or on the outside of the outer T-shaped through slot.

[0073] The aforementioned T-shaped support slider drive assembly preferably includes a positioning pin 523a, a drive arm 523b, a pin groove 523c, and an arm drive assembly 523d; the bottom end of the positioning pin is connected to one end of the T-shaped support slider, and the top end of the positioning pin is connected to the drive arm; the drive arm has a T-shaped pin positioning blocking surface, and slides left and right along a direction perpendicular to the T-shaped positioning groove under the drive of the arm drive assembly.

[0074] The horizontal push head is positioned at the top of the T-shaped positioning plate and can contact the T-shaped pins in all the T-shaped positioning slots. Furthermore, a horizontal guide push rod 524a is connected to the upper middle part of the horizontal push head, and horizontal return springs 524b are provided on both sides of the horizontal guide push rod. Preferably, a return block 524c is provided at the end of the horizontal return spring and the horizontal guide push rod. The horizontal return springs enable the horizontal push head to be positioned at the top of the T-shaped positioning plate.

[0075] The aforementioned horizontal clamping assembly is used to drive the horizontal movement of the horizontal push head, such as... Figure 7As shown, the horizontal pressing assembly preferably includes a horizontal pressing head 541, a horizontal pressing electric cylinder 542, a horizontal pressing guide rail 543, and a support frame 544. The support frame is located on one side of the housing conveyor line, the horizontal pressing guide rail is mounted on top of the support frame, and the horizontal pressing electric cylinder is mounted on the horizontal pressing guide rail for easy sharing with other processes. The horizontal pressing electric cylinder is used to drive the extension and retraction of the horizontal pressing head, thereby pushing the horizontal push head to move horizontally.

[0076] A method for positioning and pressing a T-type insert includes the following steps.

[0077] Step 1: Pressing the T-shaped housing: Driven by the T-shaped pressing and lifting assembly, the T-shaped housing pressing plate descends in height, thereby pressing and positioning the top and four sides of the T-shaped housing located at the T-shaped pin positioning and pressing station; at the same time, the T-shaped positioning plate carrying the T-shaped support slider extends into the inner cavity of the T-shaped housing; wherein, the T-shaped support slider faces the T-shaped pin hole of the T-shaped housing and is at the same height as the bottom surface of the T-shaped pin hole.

[0078] Step 2: Place T-pins: In each T-positioning slot of the T-positioning plate, a T-pin is placed using a pin press-fit transfer assembly; wherein, the T-shaped protrusion of the T-pin extends into the T-positioning slot and makes positioning contact with the bottom surface of the T-positioning slot, and the front end of the insertion part of the T-pin is placed on the T-support slider, keeping it horizontal, and the tip points towards the T-pin hole.

[0079] Step 3, T-pin press-fit: The horizontal pressing assembly drives the horizontal push head to move horizontally and contact the vertical part of all T-pins in all T-positioning slots; the horizontal push head continues to move forward horizontally, and the tip of the insertion part of each T-pin enters the corresponding T-pin hole to the set press-fit depth.

[0080] Furthermore, before the T-shaped support slider is driven to slide by the T-shaped support slider drive assembly, the T-shaped pin positioning blocking surface can contact the horizontal push head to limit the first pressing position of the T-shaped pin in step 3.

[0081] Step 4: Slide the T-shaped support slider

[0082] Driven by the T-shaped support slider drive assembly, the T-shaped support slider slides along a direction perpendicular to the T-shaped positioning groove, so that the T-shaped through grooves of all T-shaped support sliders are connected to the corresponding T-shaped positioning grooves one by one.

[0083] When the T-shaped support slider drive assembly drives the T-shaped support slider to slide, the T-shaped pin positioning blocking surface will release its positioning block against the horizontal push head.

[0084] Step 5, Secondary pressing of T-pins: The horizontal pressing assembly drives the horizontal pusher to continue moving horizontally forward until the vertical part of each T-pin passes through the T-slot of the corresponding T-support slider and has no contact with the T-positioning plate and the T-support slider; at this time, the insertion part of each T-pin is pressed into the corresponding T-pin hole.

[0085] Step 6, Positioning Reset: The horizontal clamping assembly and the horizontal push head reset, and the T-shaped support slider resets, forming a blockage at the front end of each T-shaped positioning groove. Furthermore, the horizontal clamping assembly and the horizontal push head are designed separately. After the horizontal clamping assembly resets, the horizontal push head automatically resets to its starting position away from the T-shaped pin hole under its own spring force.

[0086] Step 7, T-shaped housing transfer: The T-shaped housing clamping plate rises and resets under the drive of the T-shaped pressing and lifting assembly, thereby contacting and pressing the T-shaped housing. The T-shaped housing that has been pressed is transferred to the next process. Repeat steps 1 to 7 to perform the positioning and pressing of the T-shaped pin in the next T-shaped housing to be pressed.

[0087] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the protection scope of the present invention.

Claims

1. A T-pin positioning press-fitting device, characterized by: The T-shaped shell pressing plate, the T-shaped positioning tool, the T-shaped pressing and lifting assembly and the horizontal pressing assembly are included. The T-shaped pin can be inserted into the T-shaped pin hole of the T-shaped shell, and the T-shaped shell is located on the shell transmission line, and the shell transmission line has a T-shaped pin positioning and pressing station. The T-shaped shell pressing plate is arranged directly above the T-shaped pin positioning and pressing station and can be driven by the T-shaped pressing and lifting assembly to realize height lifting and press and position the T-shaped shell on the T-shaped pin positioning and pressing station. The T-shaped shell pressing plate is provided with a T-shaped positioning opening slot, and the opening is directed to the direction of the T-shaped pin hole of the T-shaped shell. The T-shaped positioning tool includes a T-shaped positioning plate, a T-shaped support sliding block, a T-shaped support sliding block driving assembly and a horizontal push head. The T-shaped positioning plate is arranged at the bottom of the T-shaped shell pressing plate directly below the T-shaped positioning opening slot and can extend into the inner cavity of the T-shaped shell. The T-shaped positioning plate is provided with T-shaped positioning slots equal in number to the T-shaped pin holes and corresponding to each other, and each T-shaped positioning slot can position and place a T-shaped pin. The T-shaped support sliding block is arranged at the front end of the T-shaped positioning plate directed to the T-shaped pin hole and can slide left and right along a direction perpendicular to the T-shaped positioning slot under the driving of the T-shaped support sliding block driving assembly. The T-shaped support sliding block is provided with T-shaped through slots equal in number to the T-shaped positioning slots and open at the top. The horizontal push head is arranged at the top of the T-shaped positioning plate and can contact the T-shaped pins in all T-shaped positioning slots. The horizontal pressing assembly is used to drive the horizontal movement of the horizontal push head. Each T-shaped pin includes a horizontal part and a vertical part, wherein the horizontal part is a horizontal insertion part matched with the T-shaped pin hole; and the vertical part includes a T-shaped convex part and an electrical interface part at both ends. Each T-shaped positioning slot includes a convex part guide slot capable of accommodating the T-shaped convex part and guiding the horizontal movement of the T-shaped convex part. The T-shaped support sliding block can support the front end of the insertion part, so that the insertion part remains in a horizontal state during horizontal movement.

2. The T-pin positioning press-fitting device according to claim 1, characterized in that: Each T-shaped positioning slot further includes a T-shaped pin guide placement slot at the top of the convex part guide slot for guiding the placement of the T-shaped pin.

3. The T-pin positioning press-fitting device according to claim 1, characterized in that: The front end of the T-shaped positioning plate directed to the T-shaped pin hole is provided with a support sliding slot perpendicular to the T-shaped positioning slot. The T-shaped support sliding block is arranged in the support sliding slot.

4. The T-pin positioning press-fitting device according to claim 1, characterized in that: The T-shaped support sliding block driving assembly includes a positioning pin and a driving arm; the bottom end of the positioning pin is connected to one end of the T-shaped support sliding block, and the top end of the positioning pin is connected to the driving arm; and the driving arm has a T-shaped pin positioning blocking surface.

5. The T-pin positioning press-fitting device according to claim 1, characterized in that: The horizontal push head is connected with a horizontal guide push rod at the middle upper part, and the horizontal guide push rod is provided with horizontal return springs at both sides, which can make the horizontal push head be at the arranged position at the top of the T-shaped positioning plate.

6. A T-pin positioning press-fitting method based on the T-pin positioning press-fitting device according to any one of claims 1-5, characterized in that: The method includes the following steps: Step 1, press the T-shaped shell: the T-shaped shell pressing plate is driven by the T-shaped pressing and lifting assembly to lower the height, thereby press and position the T-shaped shell on the T-shaped pin positioning and pressing station; at the same time, the T-shaped positioning plate carrying the T-shaped support sliding block is extended into the inner cavity of the T-shaped shell; wherein the T-shaped support sliding block is directed to the T-shaped pin hole of the T-shaped shell and is equal in height to the bottom surface of the T-shaped pin hole. Step 2, place the T-shaped pin: in each T-shaped positioning groove of the T-shaped positioning plate, a T-shaped pin is placed by using the pin pressing and moving assembly; wherein, the T-shaped convex part of the T-shaped pin extends into the T-shaped positioning groove and is in positioning contact with the bottom surface of the T-shaped positioning groove, the front end of the insertion part of the T-shaped pin is placed in the T-shaped support slider, maintaining a horizontal state, and the sharp end points to the T-shaped pin hole; Step 3, one-time pressing of the T-shaped pin: the horizontal pressing assembly drives the horizontal push head to move horizontally and comes into contact with the vertical part of all T-shaped pins in all T-shaped positioning grooves; the horizontal push head continues to move horizontally forward, and the sharp end of the insertion part of each T-shaped pin enters the corresponding T-shaped pin hole to a set one-time pressing depth; Step 4, T-shaped support slider sliding: the T-shaped support slider slides in a direction perpendicular to the T-shaped positioning groove under the drive of the T-shaped support slider drive assembly, so that the T-shaped through slot of all T-shaped support sliders is in one-to-one communication with the corresponding T-shaped positioning groove; Step 5, two-time pressing of the T-shaped pin: the horizontal pressing assembly drives the horizontal push head to continue to move horizontally forward until the vertical part of each T-shaped pin passes through the T-shaped through slot of the corresponding T-shaped support slider and has no contact with the T-shaped positioning plate and the T-shaped support slider; at this time, the insertion part of each T-shaped pin has completed the pressing in the corresponding T-shaped pin hole; Step 6, positioning reset: the horizontal pressing assembly and the horizontal push head are reset, and the T-shaped support slider is reset, forming a barrier to the front end of each T-shaped positioning groove; Step 7, T-shaped shell circulation: the T-shaped shell pressing plate is driven by the T-shaped pressing and lifting assembly to rise in height and reset, thereby pressing the T-shaped shell, and the T-shaped shell that has completed the pressing is circulated to the next process; steps 1 to 7 are repeated to position and press the T-shaped pins in the next T-shaped shell to be pressed.

7. The T-pin positioning press-fit method of claim 6, wherein: In step 2, a T-shaped pin guiding and placing slot with a trumpet-shaped opening is arranged at the top of each T-shaped positioning groove, which facilitates the positioning and placing of the T-shaped pin.

8. The T-pin positioning press-fit method of claim 6, wherein: In step 4, the T-shaped support slider drive assembly includes a driving arm, and the driving arm has a T-shaped pin positioning barrier surface that can come into contact with the horizontal push head before the T-shaped support slider drive assembly drives the T-shaped support slider to slide, thereby limiting the one-time pressing position of the T-shaped pin in step 3; after the T-shaped support slider drive assembly drives the T-shaped support slider to slide, the T-shaped pin positioning barrier surface will no longer be in positioning contact with the horizontal push head.

9. The T-pin positioning press-fit method of claim 6, wherein: In step 6, the horizontal pressing assembly and the horizontal push head are designed separately, and after the horizontal pressing assembly is reset, the horizontal push head is reset to the initial position away from the T-shaped pin hole under the action of its own spring force.

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