Workpiece assembly jig and assembly method

Abstract

The application relates to the technical field of workpiece assembly, in particular to a workpiece assembly jig and an assembly method. The workpiece assembly jig is used for assembling a first workpiece, a second workpiece and a third workpiece. The workpiece assembly jig comprises a base, a bearing mechanism arranged on the base and used for positioning the first workpiece, a feeding mechanism used for clamping the second workpiece, the feeding mechanism being in sliding connection with the base so as to transport the second workpiece to be matched and docked with the first workpiece, and a press-fitting mechanism used for mounting the third workpiece and pressing the third workpiece into the docking position of the first workpiece and the second workpiece, so that the first workpiece and the second workpiece are connected through the third workpiece. Through cooperation of the bearing mechanism, the feeding mechanism and the press-fitting mechanism, coaxial assembly of the first workpiece, the second workpiece and the third workpiece is realized, coaxiality of multiple workpieces assembled without related parts is ensured, and then assembly is completed, and operation efficiency and assembly yield of coaxial assembly of multiple workpieces are improved.

Description

Technical Field

[0001] This application relates to the field of workpiece assembly technology, and in particular to a tooling assembly fixture and assembly method. Background Technology

[0002] The process of fitting and connecting parts or components to create a semi-finished or finished product is called assembly. In existing technology, assembly includes... Figure 1 , 2 The three different structural workpieces in section 3 are generally assembled manually. Figure 4 When assembling components, the assembly process must not cause scratches, deformation, or other defects to the product. In particular, it is necessary to ensure that components such as... Figure 1 , 2 When assembling the three different workpiece components with different structures in points 1 and 3 on the same axis, it is difficult to determine the relative coaxiality through the workpiece itself, resulting in low assembly efficiency. Summary of the Invention

[0003] This application provides a tooling assembly fixture and assembly method, which aims to maintain precise coaxiality during the assembly process and greatly improve the yield of interference fit assembly.

[0004] This application provides a workpiece assembly fixture for assembling a first workpiece, a second workpiece, and a third workpiece, the workpiece assembly fixture comprising:

[0005] Base;

[0006] A support mechanism is provided on the base, and the support mechanism is used to position the first workpiece;

[0007] A feeding mechanism is used to clamp the second workpiece, and the feeding mechanism is slidably connected to the base to transport the second workpiece to cooperate and dock with the first workpiece.

[0008] A press-fitting mechanism is used to install the third workpiece and press the third workpiece into the joint between the first workpiece and the second workpiece, so that the first workpiece and the second workpiece are connected through the third workpiece.

[0009] In one possible design, the feeding mechanism includes:

[0010] The sliding plate is slidably connected to the base;

[0011] A clamping assembly is mounted on the sliding plate, the clamping assembly having a clamping opening;

[0012] The first handle assembly rotates and abuts against the clamping assembly to close or open the clamping port.

[0013] In one possible design, the clamping assembly includes:

[0014] A fixed gripper is connected to the sliding plate;

[0015] A movable gripper is rotatably connected to the fixed gripper, and one end of the movable gripper and one end of the fixed gripper form the gripping opening;

[0016] A first elastic element, one end of which is connected to the fixed gripper, and the other end of which is connected to the movable gripper; wherein

[0017] The first handle assembly is connected to the movable gripper and rotates against one side of the fixed gripper to pull the movable gripper to rotate elastically so that the clamping port can be elastically opened or closed.

[0018] In one possible design, the retaining jaws include:

[0019] A horizontal block is connected to the sliding plate, and the movable gripper is rotatably connected to the horizontal block;

[0020] A vertical block is connected to the horizontal block to form a stepped shape. The vertical block has a first spring hole, and one end of the first elastic element is disposed in the first spring hole.

[0021] The first arc-shaped gripper is connected to the vertical block.

[0022] In one possible design, the movable gripper includes:

[0023] The rotating block is rotatably connected to the horizontal block via a rotating shaft.

[0024] The movable connecting block has a second spring hole, and the two ends of the first elastic element are respectively disposed in the first spring hole and the second spring hole;

[0025] The second arc-shaped gripper is connected to the rotating block through the movable connecting block, and the second arc-shaped gripper cooperates with the first arc-shaped gripper to form the clamping opening.

[0026] In one possible design, the first handle assembly includes:

[0027] The first handle is located on one side of the vertical block;

[0028] A tensioning column is provided in the movable connecting block, which has a vertical hole, and the tensioning column is located in the vertical hole.

[0029] The connecting rod has one end passing through the vertical block and connected to the first handle, and the other end inserted into the vertical hole from the side wall of the movable connecting block to connect with the tensioning column.

[0030] In one possible design, the feeding mechanism further includes:

[0031] A cover plate, covering the vertical block and the movable connecting block;

[0032] A connector is provided, through which the cover plate is connected to the vertical block.

[0033] In one possible design, the base includes:

[0034] Base;

[0035] A first base plate is disposed on the base, and the first base plate has a slide rail, and the sliding plate is slidably connected to the slide rail.

[0036] In one possible design, the feeding mechanism further includes:

[0037] A support spans the sliding plate, with both ends of the support located on the first base plate;

[0038] The second handle assembly is rotatably connected to the support, and a portion of the second handle assembly abuts against the sliding plate to push the sliding plate to move along the slide rail.

[0039] In one possible design, the sliding plate has a first push hole, and the second handle assembly includes:

[0040] The first rotating wheel is disposed between the sliding plate and the first base plate;

[0041] A first rotating plate is disposed on the support;

[0042] A first connecting shaft, one end of which is connected to the first rotating wheel, and the other end of which passes through the support to be connected to the first rotating plate;

[0043] A first push shaft, one end of which is connected to the first rotating wheel, and the other end of which passes through the first push hole;

[0044] The second handle is located at one end of the first rotating plate and is used to drive the first rotating plate to rotate counterclockwise so that the first connecting shaft pushes the sliding plate to slide on the first base plate, so that the feeding mechanism can transport the second workpiece to cooperate and dock with the first workpiece.

[0045] In one possible design, the tooling assembly fixture further includes a lifting mechanism, which comprises:

[0046] A support plate is provided on one side of the base;

[0047] The lifting frame is inserted into the base;

[0048] Positioning pins are installed on the lifting frame;

[0049] The second elastic element has one end connected to the lifting frame and the other end connected to the bottom wall of the cavity;

[0050] The third handle assembly has one end passing through the support plate and rotating to press down or release the lifting frame, so that the lifting frame causes the positioning pin to elastically descend or extend out of the cavity.

[0051] In one possible design, the lifting frame includes a fixed cover, a guide sleeve, and a first vertical part, a first horizontal part, a second vertical part, and a second horizontal part that are sequentially connected to form a cavity opening;

[0052] The third handle assembly passes through the support plate, inserts into the cavity, and abuts against the first horizontal part to flexibly press down the lifting frame;

[0053] The second horizontal section has an installation position, and the guide sleeve is fitted onto the fixing cover;

[0054] The fixing cover is disposed on the mounting position;

[0055] One end of the positioning pin is installed at the mounting position, and the other end passes through the fixing cover and the guide sleeve in sequence to extend out of the cavity.

[0056] In one possible design, the third handle assembly includes:

[0057] Second rotating wheel;

[0058] A second rotating plate is disposed on the support plate;

[0059] The second connecting shaft has one end connected to the second rotating wheel and the other end connected to the second adapter plate;

[0060] The second push shaft has one end connected to the second rotating wheel and the other end passing through the cavity opening and rotating to reduce pressure on the first horizontal part so that the lifting frame can elastically descend.

[0061] The third handle is located at one end of the second rotating plate and is used to drive the second rotating plate to rotate counterclockwise so that the second connecting shaft releases the low pressure on the first horizontal part so that the lifting frame can rise elastically.

[0062] In one possible design, the pressing mechanism includes:

[0063] Guide sleeve, used for inserting the first workpiece;

[0064] A pressure needle, a portion of which is inserted into the guide sleeve and used for abutting the third workpiece;

[0065] A pressure plate, disposed on the pressure needle, is used to press the pressure needle to push the third workpiece to connect with the first workpiece and the second workpiece.

[0066] In one possible design, the lifting frame further includes a docking plate and two docking rods spaced apart from the docking plate, the docking rods being inserted into the mounting position;

[0067] The pressing mechanism further includes two pressing rods, which are spaced apart at both ends of the pressing plate;

[0068] The two pressure rods abut against the two docking rods to press the docking rods, causing the lifting frame to drive the positioning pin out of the first workpiece and the second workpiece.

[0069] This application provides a workpiece assembly method, the assembly method comprising:

[0070] The first workpiece is positioned on the base by a supporting mechanism;

[0071] The feeding mechanism is operated to clamp the second workpiece and transport the second workpiece to a position where it can be mated with the first workpiece.

[0072] Install the third workpiece at the joint where it connects with the first and second workpieces;

[0073] The press-fitting mechanism is operated to press the third workpiece so that the third workpiece connects the first workpiece and the second workpiece.

[0074] In this application, a bearing mechanism is first used to position the first workpiece, then a feeding mechanism is used to send the second workpiece to the pre-fitting position with the first workpiece, and finally a pressing mechanism is used to install the third workpiece, so that the third workpiece is inserted into the holes of the first and second workpieces, thereby completing the assembly of the first, second and third workpieces, realizing the coaxial assembly of the first, second and third workpieces, ensuring the coaxiality when multiple unrelated parts are assembled, and thus completing the assembly, improving the work efficiency and assembly yield of coaxial assembly of multiple parts.

[0075] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0076] Figure 1 This is a schematic diagram of the structure of the first workpiece provided in this application;

[0077] Figure 2 This is a schematic diagram of the structure of the second workpiece provided in this application;

[0078] Figure 3 This is a schematic diagram of the structure of the third workpiece provided in this application;

[0079] Figure 4 This is a schematic diagram of the first workpiece, the second workpiece, and the third workpiece provided in this application after assembly.

[0080] Figure 5 This is a schematic diagram of the structure of the workpiece assembly fixture provided in this application when assembling the workpiece;

[0081] Figure 6 A schematic diagram showing the sequential placement of components in the pressing mechanism provided in this application;

[0082] Figure 7 for Figure 5 An explosion diagram;

[0083] Figure 8 for Figure 5 A structural diagram from another perspective;

[0084] Figure 9 An exploded view of the clamping assembly provided in this application;

[0085] Figure 10 A schematic diagram showing the feeding mechanism provided in this application opening the clamping port to clamp the second workpiece;

[0086] Figure 11 A schematic diagram showing the feeding mechanism provided in this application opening the clamping port to detach from the second workpiece;

[0087] Figure 12 An exploded view of the second handle assembly provided in this application;

[0088] Figure 13 This is a cross-sectional view of the workpiece assembly fixture provided in this application during workpiece assembly;

[0089] Figure 14 This is a structural diagram of the lifting mechanism provided in this application;

[0090] Figure 15 This is a structural diagram of the load-bearing mechanism provided in this application;

[0091] Figure 16 This is a cross-sectional view of the workpiece assembly fixture provided in this application during workpiece assembly;

[0092] Figure 17 A schematic diagram showing the engagement of the limiting plate and the lifting frame provided in this application;

[0093] Figure 18 This is a schematic diagram of the structure of the limiting plate provided in this application.

[0094] Figure label:

[0095] 1-Base;

[0096] 11-Base;

[0097] 12-First base plate;

[0098] 121 - Slide rail;

[0099] 13-Cavity;

[0100] 2-Bearing mechanism;

[0101] 21-Second base plate;

[0102] 22-Positioning plate;

[0103] 221 - Positioning gap;

[0104] 3-Feeding mechanism;

[0105] 31-Sliding plate;

[0106] 311 - First push hole;

[0107] 32-Clamping assembly;

[0108] 321-Clamping port;

[0109] 322 - Fixed gripper;

[0110] 322a - Horizontal block;

[0111] 322b - Vertical Block;

[0112] 322b1 - Arc-shaped groove;

[0113] 322c - First arc-shaped gripper;

[0114] 323 - Movable gripper;

[0115] 323a - Active Connector Block;

[0116] 323a1 - Second spring hole;

[0117] 323a2 - Vertical hole;

[0118] 323b - Shaft;

[0119] 323c - Second arc-shaped gripper;

[0120] 232d - Rotating block;

[0121] 324 - First elastic element;

[0122] 33 - First-in-command components;

[0123] 331 - The top leader;

[0124] 331a - Cam section;

[0125] 332-Tensioning column;

[0126] 333-link;

[0127] 34-Limiting component;

[0128] 35 - Cover plate;

[0129] 36-Connector;

[0130] 37-Support;

[0131] 38 - Second-hand component;

[0132] 381 - Second in command;

[0133] 3811 - Handle;

[0134] 3812 - Sleeve handle;

[0135] 382 - First rotating plate;

[0136] 383 - First rotating wheel;

[0137] 383a - First connecting shaft;

[0138] 383b - First rotating wheel;

[0139] 383c - First push shaft;

[0140] 4-Pressure fitting mechanism;

[0141] 41-Guide sleeve;

[0142] 42-Press needle;

[0143] 43-Pressure plate;

[0144] 44-Compression bar;

[0145] 45-Connecting rod;

[0146] 5- Lifting mechanism;

[0147] 51-Support plate;

[0148] 52-Lifting frame;

[0149] 521 - First vertical section;

[0150] 522 - First horizontal section;

[0151] 523 - Second vertical section;

[0152] 524 - Second horizontal section;

[0153] 524a - Butt Plate;

[0154] 525 - Fixed Cover;

[0155] 526-cavity opening;

[0156] 529 - Mounting position;

[0157] 53 - Positioning pin;

[0158] 54 - Second elastic element;

[0159] 55 - Third-in-command component;

[0160] 551 - Third in command;

[0161] 552 - Second rotating plate;

[0162] 553 - Second rotating wheel;

[0163] 553a - Second connecting shaft;

[0164] 553b - Second rotating wheel;

[0165] 553c - Second drive shaft;

[0166] 6-Limiting components;

[0167] 61-Limit plate;

[0168] 611-Hook section;

[0169] 612 - Second push hole;

[0170] 613 - Third spring hole;

[0171] 61a - Front end;

[0172] 61b - Backend;

[0173] 62-Drive rod;

[0174] 63-Limit pin;

[0175] 64 - Third elastic element;

[0176] 7-First workpiece;

[0177] 71 - First hole;

[0178] 72-Arc-shaped groove;

[0179] 8-Second workpiece;

[0180] 81 - Second hole;

[0181] 9-Third workpiece.

[0182] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0183] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0184] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0185] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0186] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0187] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0188] like Figure 1 , 2 3, 4 and Figure 5 As shown, this embodiment provides a workpiece assembly fixture for assembling a first workpiece 7, a second workpiece 8, and a third workpiece 9. The first workpiece 7 and the second workpiece 8 are connected through the third workpiece 9, and the first workpiece 7 and the third workpiece 9 can be an interference fit or a transition fit.

[0189] Please see Figure 5The workpiece assembly fixture includes a base 1, a bearing mechanism 2, a feeding mechanism 3, and a pressing mechanism 4. The bearing mechanism 2 is located on the base 1 and is used to position the first workpiece 7. The feeding mechanism 3 is used to clamp the second workpiece 8 and is slidably connected to the base 1 to transport the second workpiece 8 to the first workpiece 7 for mating. The pressing mechanism 4 is used to install the third workpiece 9 and press the third workpiece 9 into the mating point of the first workpiece 7 and the second workpiece 8 so that the first workpiece 7 and the second workpiece 8 are connected through the third workpiece 9.

[0190] As shown in Figure 4, the first workpiece 7 can be an arc-shaped shell part, with an arc-shaped groove 72 and a protrusion on the outer surface of the shell. The third workpiece 9 passes through the protrusion and the arc-shaped groove 72 to hinge the second workpiece 8 within the arc-shaped groove 72. Specifically, the protrusion and the second workpiece 8 are each provided with a first hole 71 and a second hole 81. The third workpiece 9 passes through the first hole 71 and the second hole 81 to hinge the second workpiece 8 within the arc-shaped groove 72. Optionally, the second hole 81 can be located at one end of the second workpiece 8 or at both ends of the second workpiece 8. The second workpiece 8 can be an elastic metal sheet or an elastic plastic sheet. The third workpiece 9 can be a shaft-like workpiece. In other embodiments, the first hole 71 can also be located at the end of the first workpiece 7. The location of the first hole 7 can be set according to the actual product requirements.

[0191] When assembling the first workpiece 7, the second workpiece 8, and the third workpiece 9, the first workpiece 7 is first positioned by the bearing mechanism 2, then the second workpiece 8 is fed to the pre-fitting position with the first workpiece 7 by the feeding mechanism 3, and finally the third workpiece 9 is installed by the pressing mechanism 4, so that the third workpiece 9 is inserted into the hole of the first workpiece 7 and the second workpiece 8, thus completing the assembly of the first workpiece 7, the second workpiece 8, and the third workpiece 9. This achieves coaxial assembly of the first workpiece 7, the second workpiece 8, and the third workpiece 9, ensuring the coaxiality of multiple unrelated parts when assembled, thereby completing the assembly and improving the work efficiency and assembly yield of coaxial assembly of multiple parts.

[0192] like Figure 6 and Figure 7 As shown, in order to clamp and transport the second workpiece 8, the feeding mechanism 3 includes a sliding plate 31, a clamping assembly 32, and a first handle assembly 33. The sliding plate 31 is slidably connected to the base 1. The clamping assembly 32 is installed on the sliding plate 31 and has a clamping port 321, which can clamp the second workpiece 8. The first handle assembly 33 rotates and abuts against the clamping assembly 32. The first handle assembly 33 can lock or unlock the clamping assembly 32 to close or open the clamping port 321 and thus clamp or release the second workpiece 8.

[0193] Specifically, first, rotate the first handle assembly 33 clockwise to open the clamping port 321 of the clamping assembly 32, and install the second workpiece 8 onto the clamping assembly 32. Then, rotate the first handle assembly 33 counterclockwise to close the clamping port 321 of the clamping assembly 32 and lock the clamping assembly 32, so that the clamping assembly 32 clamps the second workpiece 8. Then, drive the sliding plate 31 to slide forward along the base 1 to send the second workpiece 8 to the position that mates with the first workpiece 7, thereby realizing the clamping and transportation of the second workpiece 8. After the first workpiece 7, the second workpiece 8 and the third workpiece 9 are assembled, rotate the first handle assembly 33 clockwise to open the clamping port 321 of the clamping assembly 32, and drive the sliding plate 31 to move along the base 1 in a direction that gradually moves away from the second workpiece 8, so that the feeding mechanism 3 returns to the initial position for subsequent work.

[0194] In one embodiment, such as Figure 8 As shown, the clamping assembly 32 includes a fixed gripper 322, a movable gripper 323, and a first elastic element 324, which may be a spring. The fixed gripper 322 is connected to the sliding plate 31; the movable gripper 323 is rotatably connected to the fixed gripper 322, with one end of the movable gripper 323 forming a clamping opening 321 with one end of the fixed gripper 322; one end of the first elastic element 324 is connected to the fixed gripper 322, and the other end is connected to the movable gripper 323. When the clamping assembly 32 is in the locked state, the first elastic element 324 is compressed between the fixed gripper 322 and the movable gripper 323; when the clamping assembly 32 is in the unlocked state, the first elastic element 324 can push the movable gripper 323 to rotate through its own elastic force to open the clamping opening 321. Specifically, the first handle assembly 33 is connected to the movable gripper 323 and rotates against one side of the fixed gripper 322 to pull the movable gripper 323 to rotate elastically so that the clamping port 321 can be elastically opened or closed.

[0195] Among them, such as Figure 9As shown, the fixed gripper 322 includes a horizontal block 322a, a vertical block 322b, and a first arc-shaped gripper 322c. The horizontal block 322a is disposed on the sliding plate 31, and the movable gripper 323 is rotatably connected to the horizontal block 322a. The vertical block 322b is vertically connected to the horizontal block 322a to form a stepped shape. A first spring hole is provided on the side of the vertical block 322b near the movable gripper 323, and one end of the first elastic element 324 is disposed in the first spring hole. The first arc-shaped gripper 322c is connected to the vertical block 322b. The movable gripper 323 includes a rotating block 323d, a movable connecting block 323a, and a second arc-shaped gripper 323c. The rotating block 323d is rotatably connected to the horizontal block 322a through a rotating shaft 323b, so that the movable gripper 323 can rotate around the rotating shaft 323b, thereby allowing the movable gripper 323 to move closer to or away from the fixed gripper 322. A second spring hole 323a1 is provided at the position opposite to the first spring hole on the movable connecting block 323a. The two ends of the first elastic member 324 are elastically disposed in the first spring hole and the second spring hole 323a1 respectively. The first spring hole and the second spring hole 323a1 restrict the bending deformation of the first elastic member 324 during the extension and compression process, ensuring the normal operation of the clamping assembly 32. The second arc-shaped gripper 323c is connected to the rotating block 323d through the movable connecting block 323a. The second arc-shaped gripper 323c cooperates with the first arc-shaped gripper 322c to form a clamping opening 321.

[0196] Please see Figure 9 Rotating the first handle assembly 33 clockwise causes the movable gripper 323 to move closer to the fixed gripper 322, closing the clamping opening 321 and simultaneously locking the clamping assembly 32. This keeps the fixed gripper 322 and the movable gripper 323 in a state of compressing the first elastic element 324, which stores elastic potential energy. Rotating the first handle assembly 33 in the opposite direction releases the lock on the clamping assembly 32. At this time, the fixed gripper 322 and the movable gripper 323 exert no pressure on the first elastic element 324, allowing it to release its elastic potential energy. This allows the first elastic element 324 to move the movable gripper 323 closer to the fixed gripper 322 under its own elastic force, opening the clamping opening 321. This embodiment utilizes the first elastic element 324 to automatically open the clamping opening 321, eliminating the need for other mechanisms and simplifying the structure.

[0197] like Figure 9As shown, in order to enable the rotating first handle assembly 33 to drive the movable gripper 323 to move closer to the fixed gripper 322, the first handle assembly 33 includes a first handle 331, a tensioning column 332, and a connecting rod 333. The first handle 331 is located on one side of the vertical block 322b; the movable connecting block 323a is provided with a vertical hole 323a2, and the tensioning column 332 is located in the vertical hole 323a2; one end of the connecting rod 333 passes through the vertical block 322b and is connected to the first handle 331, and the other end is inserted from the side hole of the movable connecting block 323a into the vertical hole 323a2 to connect with the tensioning column 332. When it is necessary to close the open clamping port 321 to clamp the second workpiece 8, the first handle 331 can be rotated counterclockwise to drive the connecting rod 333 to pull the tensioning column 332, which is abutting against the left side wall of the vertical hole 323a2, towards the vertical block 322b. This causes the rotating block 323d to rotate counterclockwise around the rotating shaft 323b, reducing the distance between the movable connecting block 323a and the vertical block 322b. The first elastic element 324 is elastically compressed, and at the same time, the first arc-shaped gripper 322c moves closer to the second arc-shaped gripper 323c to close the clamping port 321 and clamp the second workpiece 8. Conversely, rotating the first handle 331 clockwise causes the connecting rod 333 to pull the tensioning column 332, which is abutting against the left side wall of the vertical hole 323a2, to move away from the vertical block 322b. This causes the rotating block 323d to rotate clockwise around the rotating shaft 323b, increasing the distance between the movable connecting block 323a and the vertical block 322b. The elasticity of the first elastic element 324, which is elastically compressed, expands to further push the vertical block 322b and the movable connecting block 323a, causing the distance between the movable connecting block 323a and the vertical block 322b to increase rapidly. At the same time, the first arc-shaped gripper 322c moves away from the second arc-shaped gripper 323c to open the clamping opening 321.

[0198] Please see Figure 6 The first handle 331 has a cam portion 331a, and the vertical block 322b has an arc-shaped groove 322b1 on the side near the first handle 331. The cam portion 331a moves arc-shaped along the arc-shaped groove 322b1 to drive the tensioning column 332 on the connecting rod 333 to move back and forth in the direction away from or near the vertical block 322b, thereby increasing or decreasing the distance between the movable connecting block 323a and the vertical block 322b, so that the first arc-shaped gripper 322c moves away from or near the second arc-shaped gripper 323c to open or close the clamping port 321.

[0199] like Figure 10 and Figure 11As shown, at the mating position of the first workpiece 7 and the second workpiece 8, the opening size of the clamping port 321 is limited. To avoid scratching the first workpiece 7 and the second workpiece 8, the feeding mechanism also includes a limiting member 34. The limiting member 34 is connected to the base 1 and abuts against the side of the movable connecting block 323a away from the vertical block 322b. In this embodiment, after the first workpiece 7, the second workpiece 8 and the third workpiece 9 are assembled, the first handle 331 is rotated clockwise. The movable gripper 323 can rotate an angle of 0.3 to 1.5 degrees under the restriction of the limiting member 34. Optionally, the rotation angle is 0.7 degrees. At this time, the opening size D of the clamping port 321 is 0.16 cm, which can ensure that the second workpiece 8 is disengaged from the clamping port 321. As the clamping assembly 32 moves away from the second workpiece 8, the limiting member 34 restricts the opening size of the clamping opening 321, so that the relationship between the opening size D of the clamping opening 321 and the size L of the clamping assembly 32 moving away from the second workpiece 8 satisfies D=tanα*L+0.16, so as to avoid the irregular surface of the first workpiece 7. As the clamping opening 321 gradually opens, the curved surface of the second workpiece 8 can also be separated from the clamping opening 321, reducing the risk of damage to the first workpiece 7 and the second workpiece 8. Wherein, α is the angle between the side of the movable gripper 323 near the limiting member 34 and the limiting member 34, and L is the distance by which the clamping assembly 32 slides backward after the first workpiece 7, the second workpiece 8 and the third workpiece 9 are assembled. The cam part 331a and the arc groove 322b1 move in an arc shape, so that when the distance L of the clamping assembly 32 slides backward, the opening size D of the clamping opening 321 also increases. At the same time, the inclined surface of the movable gripper 323 near the limiting member 34 gradually decreases the distance between the inclined surface and the limiting member 34 in the direction away from the second workpiece 8 of the clamping assembly 32. Therefore, as the clamping assembly 32 moves away from the second workpiece 8, the opening size of the clamping opening 321 gradually increases.

[0200] like Figure 9 As shown, in some embodiments, the feeding mechanism further includes a cover plate 35 and a connector 36. The cover plate 35 is connected to the vertical block 322b via the connector 36. The cover plate 35 covers the vertical block 322b and the movable connecting block 323a to cover the first elastic member 324, connecting rod 333, tensioning column 332, vertical hole 323a2, etc., to prevent dust and impurities from affecting the normal movement of the feeding mechanism 3. The connector 36 may be a screw.

[0201] like Figure 6 and Figure 7 As shown, in some embodiments, the base 1 includes a base 11 and a first base plate 12. The first base plate 12 is disposed on the base 11 and has a slide rail 121. A sliding plate 31 is slidably connected to the slide rail 121. The sliding plate 31 can reciprocate along the slide rail 121 to enable the clamping assembly 32 to clamp and transport the second workpiece 8 or return it to its original position.

[0202] like Figure 12 As shown, to enable the sliding plate 31 to move along the slide rail 121, the feeding mechanism 3 also includes a support 37 and a second handle assembly 38. The support 37 spans the sliding plate 31 and is arched, with both ends of the support 37 located on the first base plate 12. The second handle assembly 38 is rotatably connected to the support 37 and is also connected to the sliding plate 31 to push the sliding plate 31 to move along the slide rail 121. In this embodiment, rotating the second handle assembly 38 can push the sliding plate 31 to reciprocate along the slide rail 121.

[0203] The sliding plate 31 has a first push hole 311. The second handle assembly 38 includes a first rotating wheel 383b, a first rotating plate 382, ​​a first connecting shaft 383a, and a second handle 381. The first rotating wheel 383b is located between the sliding plate 31 and the first base plate 12; the first rotating plate 382 is located on the support 37; one end of the first connecting shaft 383a is connected to the first rotating wheel 383b, and the other end passes through the support 37 to connect with the first rotating plate 382; one end of the first push shaft 383c is connected to the first rotating wheel 383b, and the other end passes through the first push hole 311; the second handle 381 is located at one end of the first rotating plate 382 and is used to drive the first rotating plate 382 to rotate counterclockwise so that the first connecting shaft 383a pushes the sliding plate 31 to slide on the first base plate 12, so that the feeding mechanism 3 can transport the second workpiece 8 to cooperate and dock with the first workpiece 7.

[0204] The second handle 381 includes a handle 3811 and a handle sleeve 3812. The handle 3811 is connected to one end of the first rotating plate 382, ​​and the handle sleeve 3812 is fitted onto the handle 3811. The handle sleeve 3812 can be made of soft materials, such as leather, silicone, plastic, etc.

[0205] In this embodiment, if the clamping assembly 32 is in a non-feeding state, the second handle 381 can be rotated counterclockwise to push the clamping assembly 32 to transport the second workpiece 8 to the position that mates with the first workpiece 7. If the first workpiece 7, the second workpiece 8, and the third workpiece 9 are assembled, the second handle 381 can be rotated clockwise to push the clamping assembly 32 to move away from the second workpiece 8 and return to the initial position. Specifically, when the second handle 381 is rotated counterclockwise, the second handle 381 drives the first rotating plate 382 to rotate, the first rotating plate 382 drives the first connecting shaft 383a to rotate, the first connecting shaft 383a drives the first rotating wheel 383b to rotate, and the first rotating wheel 383b drives the first pushing shaft 383c to rotate within the first pushing hole 311. At the same time, the first pushing shaft 383c abuts against the front side wall of the first pushing hole 311 to push the sliding plate 31 to move forward relative to the support 37, thereby causing the sliding plate 31 to drive the clamping assembly 32 to move forward and move the second workpiece 8 to the position that mates with the first workpiece 7. When the second handle 381 is turned clockwise, the second handle 381 drives the first rotating plate 382 to rotate, the first rotating plate 382 drives the first connecting shaft 383a to rotate, the first connecting shaft 383a drives the first rotating wheel 383b to rotate, the first rotating wheel 383b drives the first pushing shaft 383c to rotate in the first pushing hole 311. At the same time, the first pushing shaft 383c abuts against the rear side wall of the first pushing hole 311 to push the sliding plate 31 to move backward relative to the support 37, thereby causing the sliding plate 31 to drive the clamping assembly 32 to move backward until it returns to the initial position.

[0206] like Figure 12 and Figure 13 As shown, in some embodiments, the tooling assembly fixture further includes a lifting mechanism 5, which includes a support plate 51, a lifting frame 52, a positioning pin 53, a second elastic element 54, and a third handle assembly 55. The support plate 51 is located on one side of the base 1; the base 1 has a cavity 13, and the lifting frame 52 is inserted into the cavity 13; the positioning pin 53 is mounted on the lifting frame 52; one end of the second elastic element 54 is connected to the lifting frame 52, and the other end is connected to the bottom wall of the cavity 13; one end of the third handle assembly 55 passes through the support plate 51 and rotates to press down or release the lifting frame 52 so that the lifting frame 52 drives the positioning pin 53 to elastically descend or extend out of the cavity 13.

[0207] In this embodiment, after one end of the third handle assembly 55 is rotated to a preset position, it presses down on the lifting frame 52, thereby compressing the second elastic element 54. This causes the positioning pin 53 to descend into the cavity along with the lifting frame 52. When the feeding mechanism 3 transports the second workpiece 8 to the mating position with the first workpiece 7, the third handle assembly 55 is rotated to release the downward pressure on the lifting frame 52. The second elastic element 54 then pushes the lifting frame 52 upward through its own elastic force. The positioning pin 53 extends out of the cavity as the lifting frame 52 rises and inserts into the holes of the first workpiece 7 and the second workpiece 8, achieving coaxial positioning of the first workpiece 7 and the second workpiece 8. Optionally, the third rotating handle can be rotated in the opposite direction to push the lifting frame 52 downward, causing the lifting frame 52 to lower the positioning pin 53 into the cavity.

[0208] The positioning pin 53 is provided with an arc-shaped guide portion to facilitate its insertion into the first workpiece 7 and the second workpiece 8. The second elastic element 54 may be a spring.

[0209] Specifically, such as Figure 14 As shown, the lifting frame 52 includes a first vertical portion 521, a first horizontal portion 522, a second vertical portion 523, a second horizontal portion 524, a fixed cover 525, and a guide sleeve 53a. The first vertical portion 521, the first horizontal portion 522, the second vertical portion 523, and the second horizontal portion 524 are sequentially connected to form a cavity 526. A third handle assembly 55 passes through a support plate 51 and is inserted into the cavity 526, and can abut against the first horizontal portion 522 to move the lifting frame 52 downwards for lifting motion. The second horizontal portion 524 has a mounting position 529, and the guide sleeve 53a is disposed on the fixed cover 525; the fixed cover 525 covers the mounting position 529; one end of the positioning pin 53 is installed in the mounting position 529, and the other end passes through the fixed cover 525 and the guide sleeve 53a in sequence to extend out of the cavity. Optionally, the first vertical portion 521, the first horizontal portion 522, the second vertical portion 523, and the second horizontal portion 524 are an integral structure.

[0210] like Figure 12 and 14As shown, the third handle assembly 55 includes a second rotating wheel 553b, a second rotating plate 552, a second connecting shaft 553a, a second push shaft 553c, and a third handle 551. The second rotating plate 532 is disposed on the support plate 51; one end of the second connecting shaft 553a is connected to the second rotating wheel 553b, and the other end passes through the support plate 51 and is connected to the second rotating plate 552; one end of the second pushing shaft 553c is connected to the second rotating wheel 553b, and the other end passes through the cavity 526 to rotate and press against the first horizontal part 522 so that it elastically decreases or rotates away from the first horizontal part 522 so that the first horizontal part 522 elastically increases, thereby driving the entire lifting frame 52 to elastically increase, thereby driving the positioning pin 53 to increase; the third handle 551 is disposed at one end of the second rotating plate 552 and is used to drive the second rotating plate 552 to rotate counterclockwise so that the second connecting shaft 553a releases its pressure on the first horizontal part 522, thereby driving the lifting frame 52 to elastically increase the positioning pin 53 so that the positioning pin 53 positions the first workpiece 7 and the second workpiece 8.

[0211] Specifically, in this embodiment, when the first workpiece 7 and the second workpiece 8 are not mated, the positioning pin 53 is located inside the cavity. At this time, the second push shaft 553c presses down on the first horizontal part 522 to restrict the second elastic member 54 from pushing the positioning pin 53 to move. When the first workpiece 7 and the second workpiece 8 are mated, the positioning pin 53 needs to extend out of the cavity to achieve coaxial positioning of the first workpiece 7 and the second workpiece 8. At this time, the third handle 551 is rotated counterclockwise. The third handle 551 drives the second rotating plate 552 to rotate. The second rotating plate 552 drives the second connecting shaft 553a to rotate. The second connecting shaft 553a drives the second rotating wheel 553b to rotate. Since the second push shaft 553c is located at a position away from the center of the second rotating wheel 553b, the second rotating wheel 553b can drive the second push shaft 553c to move away from the first horizontal part 522 during rotation, releasing the pressure on the second elastic member 54, so that the second elastic member 54 pushes the lifting frame 52 to drive the positioning pin 53 to extend out of the cavity. After the first workpiece 7, the second workpiece 8, and the third workpiece 9 are assembled, the third handle 551 can be rotated clockwise. The third handle 551 drives the second rotating plate 552 to rotate, the second rotating plate 552 drives the second connecting shaft 553a to rotate, the second connecting shaft 553a drives the second rotating wheel 553b to rotate, and the second rotating wheel 553b can drive the second pushing shaft 553c to press down the first horizontal part 522 during the rotation, thereby pulling down the lifting frame 52 and driving the positioning pin 53 to retract into the cavity 13.

[0212] like Figure 15As shown, in some embodiments, to achieve clamping and positioning of the first workpiece 7, the supporting mechanism 2 includes a second base plate 21 and multiple positioning plates 22. The second base plate 21 is disposed on the base 1; the multiple positioning plates 22 are spaced apart on the second base plate 21 to form positioning gaps 221, and the first workpiece 7 is disposed within the positioning gaps 221. In this embodiment, the first workpiece 7 has an irregular shape. To ensure the positioning effect of the first workpiece 7, two, three, or more positioning plates 22 can be set to position the first workpiece 7. The placement of the positioning plates 22 does not affect the cooperation between the first workpiece 7 and the second workpiece 8.

[0213] like Figure 16 As shown, in some embodiments, the pressing mechanism 4 includes a guide sleeve 41, a pressing needle 42, and a pressing plate 43. The guide sleeve 41 is used to insert into the first hole 71 of the first workpiece 7; the pressing needle 42 is inserted into the guide sleeve 41 and is used to abut against the third workpiece 9; the pressing plate 43 is disposed on the pressing needle 42 and is used to press the pressing needle 42 to push the third workpiece 9 to connect with the first workpiece 7 and the second workpiece 8.

[0214] In this embodiment, the guide sleeve 41 is first inserted into the first hole 71 of the first workpiece 7, and then the third workpiece 9 is inserted into the guide sleeve 41, so that the guide sleeve 41 positions the third workpiece 9, making the third workpiece 9 coaxial with the first workpiece 7 and the second workpiece 8. Next, the pressure pin 42 is inserted into the guide sleeve 41, and the pressure plate 43 pushes the pressure pin 42, which in turn pushes the third workpiece 9 into the first workpiece 7 and the second workpiece 8. During the pressing of the third workpiece 9, the positioning pin 53 can be elastically disengaged from the first workpiece 7 and the second workpiece 8 by rotating the third handle 551, thus preventing the third workpiece 9 from contacting the positioning pin 53 and causing damage to the third workpiece 9 or the positioning pin 53. In this embodiment, the first workpiece 7 and the second workpiece 8 are first positioned coaxially using the positioning pin 53, and then the first workpiece 7 and the third workpiece 9 are positioned simultaneously using the guide sleeve 41. At the same time, the positioning pin 53 pushes the third workpiece 9 to connect the first workpiece 7 and the second workpiece 8, while the positioning pin 53 disengages from the first workpiece 7 and the second workpiece 8, thereby realizing the coaxial assembly of the first workpiece 7, the second workpiece 8 and the third workpiece 9. Furthermore, the press-fitting mechanism 4 greatly improves the assembly yield.

[0215] In some embodiments, other methods can be used to achieve the lifting frame 52 driving the positioning pin 53 back to its original position. After the positioning pin 53 returns to its original position, the third handle 551 is rotated clockwise so that the second push shaft 553c abuts against the bottom wall of the cavity 526, thus preventing the positioning pin 53 from being pushed out of the cavity again by the second elastic member 54.

[0216] like Figure 14 and 16As shown, the lifting frame also includes at least two connecting rods 45 and a connecting plate 524a; the connecting plate 524a is inserted into the mounting position 529, one end of the positioning pin 53 is installed on the connecting plate 524a, and the two connecting rods 45 are spaced apart on the connecting plate 524a. The pressing mechanism 4 also includes at least two pressing rods 44, which are spaced apart at both ends of the pressing plate 43. The two pressing rods 44 respectively abut against the two connecting rods 45 to press the connecting rods 45 so that the lifting frame 52 drives the positioning pin 53 to exit the first workpiece 7 and the second workpiece 8. Specifically, when the positioning pin 53 positions the first workpiece 7 and the second workpiece 8, part of the connecting rod 45 is located outside the cavity 13. The pressing rod 44 presses the part of the connecting rod 45 outside the cavity 13 to push the lifting frame 52 down, so that the third workpiece 9 connects the first workpiece 7 and the second workpiece 8, while the lifting frame 52 drives the positioning pin 53 to disengage from the first workpiece 7 and the second workpiece 8. However, at this time, the third workpiece 9 is located in the middle of the first workpiece 7, and the positioning pin 53 may not have fully retracted into the cavity. Part of the positioning pin 53 is still inside the first workpiece 7. Rotate the third handle 551 clockwise so that the third handle 551 pushes the lifting frame 52 to drive the positioning pin 53 to retract into the cavity.

[0217] like Figure 17 and 18 As shown, to prevent the feeding mechanism 3 from moving before the first workpiece 7, the second workpiece 8, and the third workpiece 9 are fully assembled, in some embodiments, the workpiece assembly fixture also includes a limiting component 6, which includes a limiting plate 61 and a transmission rod 62. The limiting plate 61 is slidably connected to the base 11, and the front end 61a of the limiting plate 61 is located between the first base plate 12 and the docking plate 524a. The front end 61a of the limiting plate 61 has two hook portions 611, and the rear end 61b has a second push hole 612. The two hook portions 611 are spaced apart at the front end 61a of the limiting plate 61, and the first horizontal portion 522 is located between the two hook portions 611. One end of the transmission rod 62 is connected to the sliding plate 31, and the other end passes through the first base plate 12 and is inserted into the second push hole 612. When the sliding plate 31 moves forward with the clamping assembly (32) holding the second workpiece 8, it moves forward in conjunction with the limiting plate 61 via the transmission rod 62 until the front end 61a of the limiting plate 61 abuts against the first horizontal part 522 and the hook part 611 moves away from the docking plate 524a. At this time, the second workpiece 8 on the clamping assembly 32 reaches the position to engage with the first workpiece 7. After assembly, when the sliding plate 31 moves backward with the clamping assembly 32, it moves backward in conjunction with the limiting plate 61 via the transmission rod 62. The connecting plate 524a moves towards the docking plate 524a until the hook part 611 hooks the docking plate 524a, preventing the limiting plate 61 from moving backward. Consequently, the transmission rod 62 moves the sliding plate 31 backward, and the sliding plate 31 is unable to move backward. At this time, the sliding plate 31 completes its reset.

[0218] Figure 17As shown, the limiting plate 61 also has a third spring hole 613, which is located between the hook portion 611 and the second push hole 612. The limiting assembly 6 also includes a limiting post 63 and a third elastic member 64. One end of the limiting post 63 is connected to the base 11, and the other end is located in the third spring hole 613. The third elastic member 64 is located in the third spring hole 613, and the end of the third elastic member 64 away from the hook portion 611 abuts against the limiting post 63. The third elastic member 64 can push the limiting plate 61 back to its original position by its own elastic force.

[0219] In this embodiment, during the return process of the feeding mechanism 3, the sliding plate 31 drives the limiting plate 61 to move away from the second workpiece 8. Since the limiting post 63 is fixed on the base 11, the limiting post 63 remains stationary, and the limiting post 63 and the limiting plate 61 compress the third elastic member 64. After the feeding mechanism 3 returns to its original position, the sliding plate 31 stops driving the limiting plate 61 to move, so the limiting plate 61 does not compress the third elastic member 64. Since the limiting post 63 is fixed on the base 11, the third elastic member 64 can push the limiting plate 61 in the opposite direction under its own elastic force, so that the limiting plate 61 returns to its initial position. The length of the second push hole 612 is equal to the travel distance of the limiting plate 61, so the feeding mechanism 3 will not move during the return process of the limiting plate 61.

[0220] The third elastic element 64 can be a spring.

[0221] This embodiment also provides a workpiece assembly method, which is applied to the aforementioned workpiece assembly fixture. For example... Figures 1 to 4 , Figures 5 to 7 As shown, the specific operation steps of this assembly method include:

[0222] S1: The first workpiece 7 is positioned on the base 1 by the bearing mechanism 2;

[0223] S2: Operate the feeding mechanism 3 to clamp the second workpiece 8 and transport the second workpiece 8 to the position where it will cooperate and dock with the first workpiece 7;

[0224] S3: Install the third workpiece 9 to the docking point with the first workpiece 7 and the second workpiece 8;

[0225] S4: Operate the pressing mechanism 4 to press the third workpiece 9 so that the third workpiece 9 connects the first workpiece 7 and the second workpiece 8;

[0226] S5: After completing the assembly of the first workpiece 7, the second workpiece 8 and the third workpiece 9, remove the pressing mechanism 4 and operate the feeding mechanism 3 to return to its original position.

[0227] S6: Take out the product formed by assembling the first workpiece 7, the second workpiece 8 and the third workpiece 9.

[0228] This embodiment combines a support mechanism 2 for positioning, a feeding mechanism 3, and a pressing mechanism 4 to improve the assembly efficiency of multiple workpieces.

[0229] Specifically, such as Figures 8 to 11 As shown, when conveying the second workpiece 8, the workpiece assembly method further includes:

[0230] S21: Operate the first handle assembly 33 to open the clamping port 321 of the clamping assembly 32 to clamp the second workpiece 8;

[0231] S22: Operate the second handle assembly 38 to drive the clamping assembly 32 to transport the second workpiece 8 to the position where it will engage with the first workpiece 7.

[0232] like Figure 13 , Figure 15 and Figure 16 As shown, before installing the third workpiece 9, the assembly method also includes:

[0233] S23: The third handle assembly 55 is operated to drive the positioning pin 53 to rise and insert it into the first hole 71 of the first workpiece 7 and the second hole 81 of the second workpiece 8, positioning the first workpiece 7 and the second workpiece 8 as coaxial, ensuring that the first workpiece 7, the second workpiece 8 and the third workpiece 9 are in a coaxial state before assembly.

[0234] like Figure 16 As shown, when pressing the third workpiece 9, the assembly method also includes:

[0235] S31: Insert the guide sleeve 41 into the first hole 71 of the first workpiece 7;

[0236] S32: Insert the third workpiece 9 into the guide sleeve 41 to position the first hole 71 of the first workpiece 7 as coaxial with the third workpiece 9;

[0237] S33: Insert part of the pressure needle 42 into the guide sleeve 41 and abut against the third workpiece 9;

[0238] S41: The operating plate 43 presses the pressure needle 42, causing the pressure needle 42 to push the third workpiece 9 to cooperate with the first workpiece 7 and the second workpiece 8, so as to achieve coaxial assembly of the first workpiece 7, the second workpiece 8 and the third workpiece 9, and maintain precise coaxiality throughout the assembly process, thereby improving the assembly yield.

[0239] like Figure 16 As shown, while the third workpiece 9 mates with the first workpiece 7 and the second workpiece 8, the assembly method also includes:

[0240] The pressure plate 43 drives the pressure rod 44 to press the lifting frame 52. The lifting frame 52 drives the positioning pin 53 to exit the first hole of the first workpiece 7 and the second hole 81 of the second workpiece 8. At the same time as the third workpiece 9 connects the first workpiece 7 and the second workpiece 8, the positioning pin 53 is pushed down synchronously to ensure that the first workpiece 7, the second workpiece 8 and the third workpiece 9 remain coaxial.

[0241] Before removing the molded product, the assembly method further includes: operating the third handle assembly 55 to drive the positioning pin 53 down into the cavity 13 of the base 1, to prevent part of the positioning pin 53 from still being inside the first hole 71 of the first workpiece 7 when removing the molded product, thus avoiding scratching between the positioning pin 53 and the molded product; after the positioning pin 53 descends into the cavity 13, as Figure 17 As shown, the first handle assembly 33 is operated to open the clamping port 321 of the clamping assembly 32 so that the second workpiece 8 is disengaged from the clamping assembly 32; the second handle assembly 38 is operated to drive the clamping assembly 32 away from the second workpiece 8.

[0242] like Figure 10 and Figure 11 As shown, when the clamping assembly 32 moves away from the second workpiece 8, the movable jaw 323 of the clamping assembly 32 remains in contact with the limiting member 34. The limiting member 34 restricts the size of the opening of the clamping port 321 of the movable jaw 323, so that as the clamping assembly 32 moves away from the second workpiece 8, the size of the clamping port 321 gradually increases to avoid the irregular surface of the first workpiece 7. At the same time, as the size of the clamping port 321 gradually increases, the curved surface of the second workpiece 8 can also be separated from the clamping port 321.

[0243] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A workpiece assembly fixture for assembling a first workpiece (7), a second workpiece (8), and a third workpiece (9), characterized in that, The workpiece assembly fixture includes: Base (1); A support mechanism (2) is provided on the base (1), and the support mechanism (2) is used to position the first workpiece (7); The feeding mechanism (3) is used to clamp the second workpiece (8). The feeding mechanism (3) is slidably connected to the base (1) to transport the second workpiece (8) to cooperate and dock with the first workpiece (7). A pressing mechanism (4) is used to install the third workpiece (9) and press the third workpiece (9) into the joint between the first workpiece (7) and the second workpiece (8) so that the first workpiece (7) and the second workpiece (8) are connected through the third workpiece (9); the pressing mechanism includes a guide sleeve (41), a pressing needle (42), a pressing plate (43) and two pressing rods (44), the guide sleeve (41) is used to insert the first workpiece (7), and a portion of the pressing needle (42) is inserted into the guide sleeve (44). The pressure plate (43) is located on the pressure needle (42) and is used to press the pressure needle (42) to push the third workpiece (9) to connect with the first workpiece (7) and the second workpiece (8). The two pressure rods (44) are spaced apart at both ends of the pressure plate (43). When the third workpiece (9) connects with the first workpiece (7) and the second workpiece (8), the two pressure rods (44) can abut against the lifting mechanism (5). The lifting mechanism (5) includes a lifting frame (52), a positioning pin (53), and a second elastic element (54). The lifting frame (52) is inserted into the cavity (13) of the base (1), and the positioning pin (53) is installed on the lifting frame (52). One end of the second elastic element (54) is connected to the lifting frame (52), and the other end is connected to the bottom wall of the cavity (13). The two pressure rods (44) can abut against the lifting frame (52), thereby causing the lifting frame (52) to compress the second elastic element (54), so that the positioning pin (53) descends into the cavity along with the lifting frame (52). The second elastic element (54) pushes the lifting frame (52) to move upward through its own elastic force. The positioning pin (53) extends out of the cavity as the lifting frame (52) rises and inserts into the holes of the first workpiece (7) and the second workpiece (8). The limiting component (6) includes a limiting plate (61) and a transmission rod (62). The limiting plate (61) is slidably connected to the base (1). One end of the transmission rod (62) is connected to the feeding mechanism (3), and the other end is connected to the limiting plate (61). One end of the limiting plate (61) is provided with a hook (611). The lifting frame (52) includes a docking plate (524a); When the lifting frame (52) rises, the hook (611) abuts against the docking plate (524a) to restrict the movement of the feeding mechanism (3); When the lifting frame (52) descends, the hook (611) disengages from the docking plate (524a) so that the feeding mechanism (3) is reset.

2. The workpiece assembly fixture according to claim 1, characterized in that, The feeding mechanism (3) includes: The sliding plate (31) is slidably connected to the base (1); A clamping assembly (32) is mounted on the sliding plate (31), the clamping assembly (32) having a clamping port (321). The first handle assembly (33) rotates into contact with the clamping assembly (32) to close or open the clamping port (321).

3. The workpiece assembly fixture according to claim 2, characterized in that, The clamping assembly (32) includes: A fixed gripper (322) is connected to the sliding plate (31); A movable gripper (323) is rotatably connected to a fixed gripper (322), and a gripping opening (321) is formed at one end of the movable gripper (323) and one end of the fixed gripper (322). A first elastic element (324) is connected at one end to the fixed gripper (322) and at the other end to the movable gripper (323); wherein The first handle assembly (33) is connected to the movable gripper (323) and rotates against one side of the fixed gripper (322) to pull the movable gripper (323) to rotate elastically so that the clamping port (321) can be opened or closed elastically.

4. The workpiece assembly fixture according to claim 3, characterized in that, The fixed gripper (322) includes: A horizontal block (322a) is disposed on the sliding plate (31), and the movable gripper (323) is rotatably connected to the horizontal block (322a). A vertical block (322b) is connected to the horizontal block (322a) to form a stepped shape. The vertical block (322b) has a first spring hole, and one end of the first elastic member (324) is disposed in the first spring hole. The first arc-shaped gripper (322c) is connected to the vertical block (322b).

5. The workpiece assembly fixture according to claim 4, characterized in that, The movable gripper (323) includes: The rotating block (323d) is rotatably connected to the horizontal block (322a) via a rotating shaft (323b). The movable connecting block (323a) has a second spring hole (323a1), and the two ends of the first elastic member (324) are respectively disposed in the first spring hole and the second spring hole (323a1). The second arc-shaped gripper (323c) is connected to the rotating block (323d) through the movable connecting block (323a). The second arc-shaped gripper (323c) cooperates with the first arc-shaped gripper (322c) to form the clamping opening (321).

6. The workpiece assembly fixture according to claim 5, characterized in that, The first handle assembly (33) includes: The first handle (331) is located on one side of the vertical block (322b); A tensioning column (332) is provided in the movable connecting block (323a), and the tensioning column (332) is located in the vertical hole (323a2). The connecting rod (333) has one end passing through the vertical block (322b) and connected to the first handle (331), and the other end is inserted from the side wall of the movable connecting block (323a) into the vertical hole (323a2) to connect with the tensioning column (332).

7. The workpiece assembly fixture according to claim 5, characterized in that, The feeding mechanism (3) further includes: A cover plate (35) covers the vertical block (322b) and the movable connecting block (323a); The cover plate (35) is connected to the vertical block (322b) via the connector (36).

8. The workpiece assembly fixture according to claim 2, characterized in that, The base (1) includes: Base (11); A first base plate (12) is disposed on the base (11). The first base plate (12) has a slide rail (121), and the sliding plate (31) is slidably connected to the slide rail (121).

9. The workpiece assembly fixture according to claim 8, characterized in that, The feeding mechanism (3) further includes: A support (37) spans the sliding plate (31), and both ends of the support (37) are located on the first base plate (12). The second handle assembly (38) is rotatably connected to the support (37), and the second handle assembly (38) abuts against the sliding plate (31) to push the sliding plate (31) to move along the slide rail (121).

10. The workpiece assembly fixture according to claim 9, characterized in that, The sliding plate (31) has a first push hole (311), and the second handle assembly (38) includes: The first rotating wheel (383b) is disposed between the sliding plate (31) and the first base plate (12); The first rotating plate (382) is provided on the support (37); A first connecting shaft (383a) has one end connected to the first rotating wheel (383b) and the other end passing through the support (37) to connect to the first rotating plate (382). The first push shaft (383c) has one end connected to the first rotating wheel (383b) and the other end passing through the first push hole (311). The second handle (381) is located at one end of the first rotating plate (382) and is used to drive the first rotating plate (382) to rotate counterclockwise so that the first connecting shaft (383a) pushes the sliding plate (31) to slide on the first base plate (12) so that the feeding mechanism (3) can transport the second workpiece (8) to cooperate and dock with the first workpiece (7).

11. The workpiece assembly fixture according to claim 10, characterized in that, The lifting mechanism (5) also includes: A support plate (51) is provided on one side of the base (1); The third handle assembly (55) has one end passing through the support plate (51) and rotating to press down or release the lifting frame (52) so that the lifting frame (52) drives the positioning pin (53) to elastically descend or extend out of the cavity (13).

12. The workpiece assembly fixture according to claim 11, characterized in that, The lifting frame (52) includes a fixed cover (525), a guide sleeve (53a), and a first vertical part (521), a first horizontal part (522), a second vertical part (523), and a second horizontal part (524) that are connected in sequence to form a cavity (526). The third handle assembly (55) passes through the support plate (51), inserts into the cavity (526), ​​and abuts against the first horizontal part (522) to flexibly press down the lifting frame (52). The second horizontal part (524) has an installation position (529), and the guide sleeve (53a) is provided on the fixed cover (525). The fixing cover (525) is provided on the mounting position (529); One end of the positioning pin (53) is installed at the mounting position (529), and the other end passes through the fixing cover (525) and the guide sleeve (53a) in sequence to extend out of the cavity (13).

13. The workpiece assembly fixture according to claim 12, characterized in that, The third handle assembly (55) includes: Second rotating wheel (553b); The second rotating plate (552) is disposed on the support plate (51); The second connecting shaft (553a) has one end connected to the second rotating wheel (553b) and the other end connected to the second rotating plate (552); The second push shaft (553c) has one end connected to the second rotating wheel (553b) and the other end inserted into the cavity (526) and rotates to press against the first horizontal part (522) so that the lifting frame (52) can be lowered elastically. The third handle (551) is located at one end of the second rotating plate (552) and is used to drive the second rotating plate (552) to rotate counterclockwise so that the second connecting shaft (553a) releases its pressure on the first horizontal part (522) so that the lifting frame (52) can rise elastically.

14. The component assembly fixture according to claim 13, characterized in that, The lifting frame also includes two connecting rods (45) spaced apart from the connecting plate (524a), and the connecting plate (524a) is inserted into the mounting position (529). The pressing mechanism (4) also includes two pressure rods (44). The two pressure rods (44) abut against the two docking rods (45) to press the docking rods (45) so that the lifting frame (52) drives the positioning pin (53) to exit the first workpiece (7) and the second workpiece (8).

15. A workpiece assembly method, used in the workpiece assembly fixture according to any one of claims 1 to 14, characterized in that, The assembly method includes: The first workpiece (7) is positioned on the base (1) by the bearing mechanism (2); The feeding mechanism (3) is operated to clamp the second workpiece (8) and transport the second workpiece (8) to the position where it is mated with the first workpiece (7); Install the third workpiece (9) at the joint with the first workpiece (7) and the second workpiece (8); The press mechanism (4) is operated to press the third workpiece (9) so that the third workpiece (9) connects the first workpiece (7) and the second workpiece (8).

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