Dual press-fitting mechanism

Abstract

The utility model relates to the technical field of multi-workpiece assembling, in particular to a double press-fitting mechanism which comprises a base and further comprises an assembling mechanism, the assembling mechanism comprises a first riveting air cylinder, a fixing block is arranged at the output end of the first riveting air cylinder, a first riveting male die is arranged on the bottom face of the fixing block, a fixing base plate is arranged below the first riveting male die, and a second riveting male die is arranged below the fixing base plate. A lower die supporting plate is arranged on the top face of the fixed base plate, an inner guide column is arranged on the top face of the lower die supporting plate, and a discharging plate for assembling workpieces is arranged on the outer side of the inner guide column. And the matching mechanism comprises a supporting base, a second riveting air cylinder is arranged on the top face of the supporting base, a stabilizing block is fixedly arranged at the output end of the second riveting air cylinder, and a riveting female die is detachably installed on the bottom face of the stabilizing block. According to the double press-fitting mechanism, the product clamping and turnover times are reduced, the production time is saved, the equipment use cost and the risk of poor appearance in the product clamping and turnover process are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-workpiece assembly, and specifically relates to a double pressing mechanism. Background Art

[0002] At present, some tooling products are composed of an inner workpiece, a middle workpiece and an outer workpiece. During assembly, it is necessary to press-fit the three workpieces together, and after the middle workpiece is pressed into the outer workpiece, it is also necessary to expand it from the inside to make it close to the inner wall of the outer workpiece. During pressing, the diameter of the workpiece is changing, and the position of the workpiece is not easy to fix, which will cause the relative position of the workpiece to be adjusted after pressing, resulting in multiple pressing processes, low production efficiency, long equipment occupation time, high labor cost, and easy damage to the appearance surface of the product during product turnover.

[0003] Therefore, in view of the above problems, it is necessary for the applicant to design a double pressing mechanism to solve the problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a double pressing mechanism to solve the problems mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A double pressing mechanism, including a base,

[0006] Further including: an assembly mechanism arranged above the base, the assembly mechanism includes a first riveting and pressing cylinder, the output end of the first riveting and pressing cylinder is fixedly provided with a fixing block, and the bottom surface of the fixing block is provided with a first riveting and pressing punch. Below the first riveting and pressing punch, there is a fixing backing plate connected to the base, and the top surface of the fixing backing plate is provided with a lower die support plate. The top surface of the lower die support plate is detachably installed with inner guide columns, and a stripper plate for assembling workpieces is arranged on the outer surface of the inner guide columns;

[0007] A matching mechanism arranged on one side of the assembly mechanism, the matching mechanism includes a support seat connected to the base, and the top surface of the support seat is provided with a second riveting and pressing cylinder. The output end of the second riveting and pressing cylinder is fixedly provided with a stabilizing block, and the bottom surface of the stabilizing block is detachably installed with a riveting and pressing die.

[0008] Further, a stabilizing plate connected to the base is arranged inside the support seat, the top surface of the stabilizing plate is provided with a punch pad block, and the top surface of the punch pad block is detachably installed with a second riveting and pressing punch.

[0009] Further, a positioning pin is detachably installed on the bottom surface of the second riveting and pressing punch, and one end of the positioning pin penetrates through the top surface of the second riveting and pressing punch and extends to the outside of the second riveting and pressing punch.

[0010] Furthermore, a fixing seat is provided on the bottom surface of the first riveting cylinder, and a fixing plate is provided on the bottom surface of the fixing seat. An outer guide column is fixedly provided inside the fixing plate, and one end of the outer guide column away from the fixing plate is fixedly connected to the base.

[0011] Furthermore, a pressing sleeve is arranged inside the fixing plate, and the pressing sleeve contacts the outer surface of the first riveting punch.

[0012] Furthermore, a material pressing cylinder is provided on the bottom surface of the fixed plate, and the bottom surface of the material pressing cylinder is fixedly connected to the top surface of the base.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the double pressing mechanism reduces the number of product clamping and turnover times, saves production time, reduces the equipment use cost and the risk of poor appearance during product clamping and turnover, and improves production efficiency. The specific contents are as follows:

[0014] When in use, the outer workpiece is placed above the lower die support plate, and the positioning punch is installed inside the outer workpiece, and the middle workpiece is placed above the unloading plate. When the installation is completed, the first riveting cylinder is started, the first riveting cylinder will push the fixed block to move, and the movement of the fixed block will drive the first riveting punch to move, and the first riveting punch will push the middle workpiece to insert into the outer workpiece, thereby pressing the outer workpiece and the middle workpiece to form a workpiece combination, and then the workpiece combination is placed on the outside of the second riveting punch and the second riveting cylinder is started, the second riveting cylinder will push the stabilizing block to move, and the stabilizing block moving bar will drive the riveting die to move, and the riveting die will facilitate the pressing of the workpiece combination and be set on the outside of the inner workpiece, thereby assembling the outer workpiece, the middle workpiece and the inner workpiece, reducing the number of product clamping and turnover times, saving production time, reducing the equipment use cost and the risk of poor appearance during product clamping and turnover, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall closed mold state of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall mold opening state of the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly mechanism structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0019] Figure 5 This is a schematic diagram of the matching mechanism structure of the utility model;

[0020] Figure 6For the present utility model Figure 5 The enlarged structural schematic diagram at position B in the present utility model.

[0021] In the figure: 1, base; 2, assembly mechanism; 3, mating mechanism; 20, outer guide pillar; 21, fixing plate; 22, fixing seat; 23, first riveting cylinder; 24, fixing backing plate; 25, blank holding sleeve; 26, blank holding cylinder; 30, support seat; 31, second riveting cylinder; 32, stabilizing block; 33, riveting die; 34, stabilizing plate; 230, fixing block; 231, first riveting punch; 240, lower die support plate; 241, inner guide pillar; 242, stripper plate; 243, pilot punch; 244, limit post; 340, punch pad block; 341, second riveting punch; 342, positioning pin. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] As Figures 1 - 6 shown, a double pressing mechanism of the present utility model includes a base 1, and further includes an assembly mechanism 2 disposed above the base 1. The assembly mechanism 2 includes a first riveting cylinder 23. A fixing block 230 is fixedly provided at the output end of the first riveting cylinder 23, and a first riveting punch 231 is provided at the bottom surface of the fixing block 230. A fixing backing plate 24 connected to the base 1 is provided below the first riveting punch 231, and a lower die support plate 240 is provided on the top surface of the fixing backing plate 24. An inner guide pillar 241 is detachably installed on the top surface of the lower die support plate 240, and a stripper plate 242 for assembling workpieces is provided on the outer surface of the inner guide pillar 241. A fixing seat 22 is provided at the bottom surface of the first riveting cylinder 23, and a fixing plate 21 is provided at the bottom surface of the fixing seat 22. An outer guide pillar 20 is fixedly provided inside the fixing plate 21, and one end of the outer guide pillar 20 away from the fixing plate 21 is fixedly connected to the base 1. A blank holding sleeve 25 is provided inside the fixing plate 21, and the blank holding sleeve 25 abuts against the outer surface of the first riveting punch 231. A blank holding cylinder 26 is provided at the bottom surface of the fixing plate 21, and the bottom surface of the blank holding cylinder 26 is fixedly connected to the top surface of the base 1.

[0024] With the above structural design, during use, place the outer workpiece above the lower die support plate 240, install the positioning punch inside the outer workpiece, and at the same time place the middle workpiece above the stripper plate 242. After the installation is completed, start the first riveting cylinder 23. The first riveting cylinder 23 will push the fixed block 230 to move. The movement of the fixed block 230 will drive the first riveting punch 231 to move. The first riveting punch 231 will push the middle workpiece into the outer workpiece, thereby press-fitting the outer workpiece and the middle workpiece to form a workpiece combination. The operation is convenient and the work efficiency is high.

[0025] The fitting mechanism 3 arranged on one side of the assembly mechanism 2 includes a support seat 30 connected to the base 1. The top surface of the support seat 30 is provided with a second riveting cylinder 31. The output end of the second riveting cylinder 31 is fixedly provided with a stabilizing block 32. The bottom surface of the stabilizing block 32 is detachably installed with a riveting die 33. The inner side of the support seat 30 is provided with a stabilizing plate 34 connected to the base 1. The top surface of the stabilizing plate 34 is provided with a punch pad 340. The top surface of the punch pad 340 is detachably installed with a second riveting punch 341. The bottom surface of the second riveting punch 341 is detachably installed with a positioning pin 342. One end of the positioning pin 342 penetrates through the top surface of the second riveting punch 341 and extends to the outside of the second riveting punch 341.

[0026] With the above structural design, during use, place the inner workpiece on the second riveting punch 341 and fix it with the positioning pin 342. After the installation is stable, place the workpiece combination outside the second riveting punch 341 and start the second riveting cylinder 31. The second riveting cylinder 31 will push the stabilizing block 32 to move. The movement of the stabilizing block 32 will drive the riveting die 33 to move. The riveting die 33 will facilitate press-fitting the workpiece combination to be sleeved outside the inner workpiece, thereby assembling the outer workpiece, the middle workpiece and the inner workpiece, reducing the number of product clamping and turnover times, saving production time, reducing the equipment use cost and the risk of appearance defects caused during the product clamping and turnover process, and improving the production efficiency.

[0027] Working principle: When using the double press mechanism, the inner workpiece is placed on the second riveting punch 341 and fixed with the positioning pin 342. When the installation is stable, the outer workpiece is placed above the lower die support plate 240, and the positioning punch is installed inside the outer workpiece. At the same time, the middle workpiece is placed above the unloading plate 242. When the installation is completed, the first riveting cylinder 23 is started. The first riveting cylinder 23 will push the fixed block 230 to move. The movement of the fixed block 230 will drive the first riveting punch 231 to move. The first riveting punch 231 will push the middle workpiece into the outer workpiece. Thereby, the outer layer workpiece and the middle layer workpiece are pressed together to form a workpiece combination, and then the workpiece combination is placed on the outside of the second riveting punch 341 and the second riveting cylinder 31 is started. The second riveting cylinder 31 will push the stabilizing block 32 to move, and the movement of the stabilizing block 32 will drive the riveting die 33 to move. The riveting die 33 will facilitate the pressing of the workpiece combination and is sleeved on the outside of the inner layer workpiece, thereby assembling the outer layer workpiece, the middle layer workpiece and the inner layer workpiece, reducing the number of product clamping and turnover times, saving production time, reducing the cost of equipment use and the risk of poor appearance during product clamping and turnover, and improving production efficiency.

[0028] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A double press-fitting mechanism, comprising a base (1), It is characterized in that Also includes: An assembly mechanism (2) is arranged above the base (1), the assembly mechanism (2) comprising a first riveting cylinder (23), a fixed block (230) is fixedly arranged at the output end of the first riveting cylinder (23), and a first riveting punch (231) is arranged on the bottom surface of the fixed block (230), a fixed pad (24) connected to the base (1) is arranged below the first riveting punch (231), and a lower die support plate (240) is arranged on the top surface of the fixed pad (24), an inner guide column (241) is detachably mounted on the top surface of the lower die support plate (240), and a stripper plate (242) for assembling workpieces is arranged on the outer surface of the inner guide column (241); A matching mechanism (3) is arranged on one side of the assembly mechanism (2), the matching mechanism (3) comprising a support seat (30) connected to the base (1), and a second riveting cylinder (31) is arranged on the top surface of the support seat (30), a stabilizing block (32) is fixedly arranged on the output end of the second riveting cylinder (31), and a riveting die (33) is detachably mounted on the bottom surface of the stabilizing block (32).

2. A double press-fitting mechanism according to claim 1, characterized in that: A stabilizing plate (34) connected to the base (1) is arranged on the inner side of the support seat (30), a punch pad (340) is arranged on the top surface of the stabilizing plate (34), and a second riveting punch (341) is detachably mounted on the top surface of the punch pad (340).

3. A double press-fitting mechanism according to claim 2, characterized in that: A positioning pin (342) is detachably mounted on the bottom surface of the second riveting punch (341), and one end of the positioning pin (342) passes through the top surface of the second riveting punch (341) and extends to the outside of the second riveting punch (341).

4. A double press-fitting mechanism according to claim 1, characterized in that: A fixing seat (22) is provided on the bottom surface of the first riveting cylinder (23), and a fixing plate (21) is provided on the bottom surface of the fixing seat (22). An outer guide column (20) is fixedly provided inside the fixing plate (21), and one end of the outer guide column (20) away from the fixing plate (21) is fixedly connected to the base (1).

5. A double press-fitting mechanism according to claim 4, characterized in that: A pressing sleeve (25) is arranged inside the fixing plate (21), and the pressing sleeve (25) contacts the outer surface of the first riveting punch (231).

6. A double press-fitting mechanism according to claim 5, characterized in that: A material pressing cylinder (26) is provided on the bottom surface of the fixed plate (21), and the bottom surface of the material pressing cylinder (26) is fixedly connected to the top surface of the base (1).

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