Workpiece assembling mechanism

Abstract

The utility model relates to a workpiece assembling mechanism, and belongs to the technical field of automobile part machining. The workpiece assembling mechanism comprises a base, a pressing head and a positioning piece, and a fixing column is installed on the base; the pressing head is installed on the fixing column and can vertically move. The positioning piece comprises a positioning block and a positioning plate, the positioning block is installed on the base and provided with a positioning groove for allowing a matching part of the part to stretch in, the positioning plate is installed on the fixing column and transversely arranged between the pressing head and the positioning block, and the positioning plate is provided with a positioning hole for positioning the inserting piece. The positioning plate can limit the inserting piece, the possibility that when the pressing head presses the inserting piece downwards and the inserting piece is pinned into two parts, deviation occurs is avoided, accurate positioning is provided for the parts and the inserting piece, and therefore the assembling accuracy and reliability are improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts processing, and in particular to a workpiece assembly mechanism. Background Art

[0002] A car has multiple parts, some of which need to be rotated together. After the parts are formed, the two parts are assembled by pinning in the insert (i.e., the shaft).

[0003] The workpiece assembly mechanism is used for the assembly of two parts. Specifically, it mainly includes a pressing head and a positioning block. The positioning block is provided with a positioning groove. When assembling two parts, firstly, the parts of the two parts that need to be matched (i.e., the matching parts) are extended into the positioning groove, and then the insert is placed above the positioning groove. The insert is inserted into the two parts by pressing down the pressing head.

[0004] However, the insert is usually partially inserted into the workpiece by relevant staff, initially limited, and then pushed by the pressing head. When the pressing head presses down on the insert, the insert will be offset, the assembly accuracy is poor, and the yield rate is low. Summary of the invention

[0005] The purpose of the present application is to provide a workpiece assembly mechanism that can improve the matching accuracy between parts and inserts.

[0006] In the first aspect, the present application provides a workpiece assembly mechanism that adopts the following technical solution:

[0007] A workpiece assembly mechanism, comprising:

[0008] A base, on which a fixing column is installed;

[0009] A pressure head, mounted on the fixed column and capable of vertical movement;

[0010] The positioning piece includes a positioning block and a positioning plate. The positioning block is installed on the base and is provided with a positioning groove for the mating part of the part to extend into. The positioning plate is installed on the fixing column and is horizontally arranged between the pressure head and the positioning block. The positioning plate is provided with a positioning hole for positioning the insert.

[0011] By adopting the above technical solution, the positioning plate can limit the insert, preventing the insert from being offset when the pressure head presses down on the insert, which provides precise positioning for the parts and the insert, thereby improving the accuracy and reliability of assembly.

[0012] Optionally, the positioning plate is rotatably connected or slidably connected to the fixing column, and when the pressure head is pressed downward, the positioning plate is driven to move toward the positioning block.

[0013] By adopting the above technical solution, the rotating or sliding connection between the positioning plate and the fixing column enables the positioning plate to move toward the positioning block when the pressure head is pressed down. A larger distance can be provided between the positioning column and the positioning plate, thereby ensuring that the parts are fixed on the positioning plate more smoothly and preventing the positioning plate from obstructing the work of fixing the parts.

[0014] Optionally, an elastic reset member is further included, one end of the elastic reset member is connected to the fixing column, and the other end of the elastic reset member is connected to the positioning plate.

[0015] By adopting the above technical solution and setting the elastic reset member, the positioning plate can be automatically reset after the pressure head is released, which reduces manual intervention, improves assembly efficiency, and ensures the stability and reusability of the positioning plate.

[0016] Optionally, the positioning plate is rotatably connected to the fixing column, and an avoidance opening is provided at one end of the positioning plate close to the positioning block, wherein the avoidance opening is communicated with the positioning hole and is used for avoiding the insert when the positioning plate rotates toward the positioning plate.

[0017] By adopting the above technical solution, the avoidance design on the positioning plate allows relevant personnel to move the insert laterally toward the avoidance so that the insert is positioned in the positioning hole. Compared with relevant personnel inserting the insert into the positioning hole in a vertical manner, the obstruction of the pressure head to the insertion work can be reduced.

[0018] Optionally, one end of the positioning plate close to the avoidance opening is rotatably connected to a movable plate for opening or closing the avoidance opening, and an end of the positioning plate facing away from the avoidance opening is fixed with a fixed plate, and an elastic element is arranged between the movable plate and the fixed plate, one end of the elastic element is against the movable plate, and the other end of the elastic element is against the fixed plate.

[0019] By adopting the above technical solution and the setting of the movable plate, flexible control of the avoidance opening is achieved through the cooperation of the elastic element and the fixed plate. The avoidance opening can be opened or blocked as needed, that is, when the insert is pushed laterally into the positioning hole, the avoidance opening is opened, and after the insert is inserted into the positioning hole, the avoidance opening is blocked, thereby increasing the adaptability and flexibility of the assembly mechanism.

[0020] Optionally, the positioning plate is slidably connected to the fixing column, a slider is provided on the fixing column and a sliding groove is opened, the slider is slidably connected in the sliding groove, and the positioning plate is installed on the slider.

[0021] By adopting the above technical solution, the positioning plate is connected by sliding connection through the slider and the slide groove, which provides another connection method between the positioning plate and the fixed column, so that the movement of the positioning plate is smoother and the stability of the assembly process is improved.

[0022] Optionally, the positioning block includes a first positioning block and a second positioning block, the first positioning block and the second positioning block are spaced apart for allowing a workpiece to extend therein, the positioning groove is provided on the first positioning block, and the second positioning block is provided with a supporting surface for fitting with the workpiece.

[0023] By adopting the above technical solution, the first positioning block and the second positioning block are spaced apart to facilitate the two parts to be fixed between the first positioning block and the second positioning block. The design of the positioning groove and the supporting surface ensures the stability and accuracy of the parts during assembly.

[0024] Optionally, a positioning column is connected to the first positioning block for plugging and mating with a workpiece.

[0025] By adopting the above technical solution, the positioning column connected to the first positioning block and the plug-in cooperation with the part provide a more secure and accurate positioning method, enhance the stability of the part during the assembly process, and reduce assembly errors.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The positioning plate can limit the insert, preventing the possibility of the insert being offset when the pressure head presses the insert into the two parts, providing precise positioning for the parts and the insert, thereby improving the accuracy and reliability of assembly.

[0028] 2. The rotating or sliding connection between the positioning plate and the fixed column enables the positioning plate to move toward the positioning block when the pressure head is pressed down. There can be a large distance between the positioning column and the positioning plate, thereby ensuring that the parts are fixed on the positioning plate more smoothly and preventing the positioning plate from hindering the work of the fixed parts.

[0029] 3. The setting of the elastic reset piece enables the positioning plate to automatically reset after the pressure head is released, reducing manual intervention, improving assembly efficiency, and ensuring the stability and reusability of the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the workpiece assembly mechanism and parts in Example 1 of the present application;

[0031] Figure 2 It is a schematic diagram of the exploded structure of the positioning member and parts in Example 1 of the present application;

[0032] Figure 3 is a schematic diagram of the cross-sectional structure of the positioning member in Example 1 of the present application;

[0033] Figure 4 is a schematic diagram of the cross-sectional structure of the positioning member in Example 1 of the present application from another viewing angle;

[0034] Figure 5 It is a three-dimensional structural schematic diagram of the workpiece assembly mechanism and parts in Example 2 of the present application;

[0035] Figure 6 yes Figure 5 A partial enlarged schematic diagram of part A.

[0036] In the figure, 1, base; 2, fixed column; 21, slide groove; 3, pressure head; 4, positioning member; 41, positioning block; 411, positioning groove; 412, first positioning block; 413, second positioning block; 4131, supporting surface; 42, positioning plate; 421, positioning hole; 422, avoidance; 5, elastic reset member; 6, movable plate; 7, fixed plate; 8, elastic element; 9, slider; 10, positioning column; 20, matching part; 30, limit block. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0038] Embodiment 1:

[0039] This embodiment discloses a workpiece assembly mechanism, referring to Figure 1 and Figure 2 , including a base 1, a fixed column 2, a pressing head 3 and a positioning member 4. The base 1 is mounted with a fixed column 2, the pressing head 3 is mounted on the fixed column 2, and its output end can move vertically to press the parts, and the positioning member 4 is mounted on the base 1 and is located directly below the pressing head 3 to position the two parts.

[0040] Among them, the positioning member 4 is the core component of this mechanism, including a positioning block 41 and a positioning plate 42. The positioning block 41 is installed on the base 1 and has a positioning groove 411. The positioning groove 411 is used for the matching part 20 of the part to extend into. The positioning plate 42 is installed on the fixed column 2 and is horizontally arranged between the pressure head 3 and the positioning block 41. A positioning hole 421 is opened on the positioning plate 42. The positioning hole 421 is located directly above the positioning groove 411 (that is, coaxially arranged). The positioning hole 421 is used to position the insert.

[0041] For the sake of convenience, the two parts are named as part a and part b respectively, wherein one side of part a has two mating parts 20 (columnar and hollow) at both ends along the height direction, and one side of part b has a mating part 20 in the middle. When the two parts are assembled, the mating part 20 on part b is extended between the two mating parts 20 of part a, and the three mating parts 20 are finally coaxially arranged. Then, the insert is pressed into the three mating parts 20 by the downward pressing action of the pressing head 3, so that the two parts are rotationally matched and the assembly is completed.

[0042] It should be noted that in this embodiment, the pressing head 3 is driven by a motor. When assembling parts, the motor drives the pressing head 3 to move toward the parts and press down the insert. In other embodiments, a telescopic oil cylinder or a telescopic air cylinder can also be directly used to achieve the same effect.

[0043] Furthermore, in this embodiment, the positioning block 41 adopts a split design, including a first positioning block 412 and a second positioning block 413, and the positioning groove 411 is provided on the first positioning block 412, and the first positioning block 412 and the second positioning block 413 are spaced apart for parts to extend therein.

[0044] When assembling parts a and b, firstly, part a is placed in the gap formed between the first positioning block 412 and the second positioning block 413 to fix part a. In addition, a positioning column 10 is provided on the first positioning block 412. The positioning column 10 is conical. When fixing part a, the through hole on part a passes through the positioning column 10, so that part a is plugged into the first positioning block 412 to prevent part a from moving and improve the positioning accuracy.

[0045] After part a is fixed, the mating portion 20 on part b is inserted between the two mating portions 20 on part a. Correspondingly, a supporting surface 4131 is provided on the second positioning block 413. When part b is mated with part a, the supporting surface 4131 on the second positioning block 413 abuts against part b, thereby further fixing part b and preventing part b from moving when assembling the parts, thereby improving the accuracy and efficiency of assembly.

[0046] Furthermore, the positioning plate 42 is installed on the fixing column 2 in a rotating connection or a sliding connection. This connection method enables the pressing head 3 to drive the positioning plate 42 to move toward the positioning block 41 when the pressing head 3 is pressed down, so that the positioning plate 42 can always limit the insert before the insert is fully inserted into the part. Therefore, there can be a clearance fit between the positioning column 10 and the positioning plate 42. Compared with the method in which the positioning plate 42 is attached to the positioning block 41, it can prevent the positioning plate 42 from hindering the work of the fixed part, and the assembly operation is more convenient.

[0047] In this embodiment, the positioning plate 42 is rotatably connected to the fixing column 2. Correspondingly, since the insert only moves vertically when being pressed down, in order to prevent the positioning plate 42 from driving the insert to move horizontally during the rotation process, causing the insert to deviate, refer to Figure 3 and Figure 4 In this embodiment, a clearance opening 422 is provided at one end of the positioning plate 42 close to the positioning block 41 , and the clearance opening 422 is communicated with the positioning hole 421 , and is used to avoid the insert when the positioning plate 42 rotates toward the positioning plate 42 .

[0048] This design allows the operator to more conveniently push the insert into the positioning hole 421 laterally, reducing the obstruction of the pressure head 3 to the insertion work. At the same time, the bottom side of the positioning plate 42 is also rotatably connected to a movable plate 6 for flexibly controlling the opening and closing state of the avoidance opening 422.

[0049] Specifically, refer to Figure 3 and Figure 4 The movable plate 6 is located at one end of the positioning plate 42 close to the avoidance opening 422. Furthermore, a fixed plate 7 is fixed to the positioning plate 42. An elastic element 8 is provided between the movable plate 6 and the fixed plate 7. One end of the elastic element 8 is against the movable plate 6, and the other end of the elastic element 8 is against the fixed plate 7.

[0050] When the insert is pushed laterally into the positioning hole 421, the elastic element 8 contracts and the movable plate 6 rotates, and the movable opening is opened. When the insert is in the positioning hole 421, the elastic element 8 rebounds and the movable plate 6 returns to its original position, and the avoidance opening 422 is re-blocked, and the insert is re-positioned.

[0051] Furthermore, it also includes an elastic reset member 5, one end of which is connected to the fixed column 2, and the other end is connected to the positioning plate 42. When the pressure head 3 is released, the elastic reset member 5 can use its elastic restoring force to automatically reset the positioning plate 42 to the initial position.

[0052] The implementation principle of Example 1 of the present application is:

[0053] The positioning plate 42 can limit the insert, preventing the possibility of the insert being offset when the pressure head 3 presses down the insert, and providing precise positioning for the parts and the insert, thereby improving the accuracy and reliability of assembly.

[0054] Embodiment 2:

[0055] The difference between this embodiment and the first embodiment is that another connection method between the positioning plate 42 and the fixing column 2 is provided.

[0056] Specifically, refer to Figure 5 and Figure 6 The positioning plate 42 is slidably connected to the fixed column 2, a slider 9 is provided on the fixed column 2 and a slide groove 21 is opened, the slide groove 21 is opened along the length direction of the fixed column 2, the positioning plate 42 is installed on the slider 9, and a limit block 30 is extended from the side of the slider 9 away from the positioning plate 42, and the limit block 30 extends into the slide groove 21.

[0057] The implementation principle of Example 2 of the present application is:

[0058] When the pressure head 3 presses down the positioning plate 42, the positioning plate 42 and the insert both move vertically. Therefore, the movement of the positioning plate 42 does not affect the movement of the insert, and there is no need to additionally open an avoidance opening 422 on the positioning plate 42, so that the positioning hole 421 can better constrain the insert and improve the stability of the assembly process.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. For those skilled in the art, various forms of modifications and replacements can be made to the present application without departing from the principles and spirit of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

[0060] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A workpiece assembly mechanism, characterized in that: include: A base (1), wherein a fixing column (2) is mounted on the base (1); A pressure head (3) is mounted on the fixed column (2) and is capable of vertical movement; The positioning member (4) comprises a positioning block (41) and a positioning plate (42); the positioning block (41) is mounted on the base (1) and is provided with a positioning groove (411) for the mating portion (20) of the part to extend therein; the positioning plate (42) is mounted on the fixing column (2) and is horizontally arranged between the pressure head (3) and the positioning block (41); and the positioning plate (42) is provided with a positioning hole (421) for positioning the insert.

2. A workpiece assembly mechanism according to claim 1, characterized in that: The positioning plate (42) is rotatably connected or slidably connected to the fixing column (2), and when the pressing head (3) is pressed downward, the positioning plate (42) is driven to move toward the positioning block (41).

3. A workpiece assembly mechanism according to claim 2, characterized in that: It also comprises an elastic reset member (5), one end of the elastic reset member (5) being connected to the fixing column (2), and the other end of the elastic reset member (5) being connected to the positioning plate (42).

4. A workpiece assembly mechanism according to claim 2, characterized in that: The positioning plate (42) is rotatably connected to the fixing column (2); an avoidance opening (422) is provided at one end of the positioning plate (42) close to the positioning block (41); the avoidance opening (422) is communicated with the positioning hole (421) and is used to avoid the insert when the positioning plate (42) rotates toward the positioning plate (42).

5. A workpiece assembly mechanism according to claim 4, characterized in that: One end of the positioning plate (42) close to the avoidance opening (422) is rotatably connected to a movable plate (6) for opening or closing the avoidance opening (422); and one end of the positioning plate (42) away from the avoidance opening (422) is fixedly provided with a fixed plate (7); An elastic element (8) is provided between the movable plate (6) and the fixed plate (7), one end of the elastic element (8) abuts against the movable plate (6), and the other end of the elastic element (8) abuts against the fixed plate (7).

6. A workpiece assembly mechanism according to claim 2, characterized in that: The positioning plate (42) is slidably connected to the fixed column (2); a slider (9) is provided on the fixed column (2) and a slide groove (21) is provided; the slider (9) is slidably connected in the slide groove (21); and the positioning plate (42) is mounted on the slider (9).

7. A workpiece assembly mechanism according to claim 1, characterized in that: The positioning block (41) comprises a first positioning block (412) and a second positioning block (413); the first positioning block (412) and the second positioning block (413) are arranged at a distance from each other for a part to be inserted into; the positioning groove (411) is provided on the first positioning block (412); and the second positioning block (413) is provided with a supporting surface (4131) for fitting with the part.

8. A workpiece assembly mechanism according to claim 7, characterized in that: The first positioning block (412) is connected to a positioning column (10) for plugging and mating with a part.

Images