Galvanized part chambering tool

Abstract

A galvanized part chambering tool belongs to the technical field of mechanical design, is used for fixing a workpiece to facilitate chambering, and comprises a base, a first air cylinder, a bearing base plate, a fixing pressing block, a second air cylinder, a rack, a rotating support, a rotating shaft, a gear disc and a protective shell. The rotating support is arranged at the upper end of the rotating shaft, the lower end of the rotating shaft is connected with the base through a bearing, and the gear disc is arranged on the rotating shaft and located below the rotating support. The first air cylinder is arranged on the base, a rack is arranged at the end of a piston rod of the first air cylinder, and the rack is meshed with the gear disc. The protective shell is arranged on the rotating support, the second air cylinder is arranged in the protective shell, a through hole for a piston rod of the second air cylinder to stretch out is formed in the upper end of the protective shell, a fixing pressing block is arranged at the end of the piston rod of the second air cylinder, and a bearing base plate is arranged at the upper end of the protective shell and located below the fixing pressing block.

Description

Technical Field

[0001] This invention belongs to the field of mechanical design technology, specifically relating to a tooling for enlarging holes in galvanized parts. Background Technology

[0002] The primary function of galvanizing is corrosion prevention. By plating a layer of zinc onto the surface of steel, rust can be effectively prevented, extending its service life. Smaller assembly parts often have through holes for bolts; galvanizing can clog these holes, requiring enlargement with a drill. However, because some assembly parts are too small to secure properly during enlargement, manual enlargement can easily lead to safety accidents. Summary of the Invention

[0003] In view of this, the present invention discloses a hole-expanding tool for galvanized parts, the specific solution of which is as follows:

[0004] A galvanized part enlarging tooling includes a base, a first cylinder, a bearing plate, a fixing block, a second cylinder, a rack, a rotating support, a rotating shaft, a gear disk, and a protective shell;

[0005] The rotating support is disposed on the upper end of the rotating shaft, and the lower end of the rotating shaft is connected to the base through a bearing. The gear disk is disposed on the rotating shaft and located below the rotating support. The first cylinder is disposed on the base, and the end of the piston rod of the first cylinder is provided with a rack, which meshes with the gear disk.

[0006] The protective shell is mounted on a rotating support, and the second cylinder is located inside the protective shell. The upper end of the protective shell has a through hole for the piston rod of the second cylinder to extend. The end of the piston rod of the second cylinder is provided with a fixing block. The upper end of the protective shell is provided with a bearing base plate, which is located below the fixing block.

[0007] As a supplement to the technical solution of this utility model, a guide shaft is also included, which is vertically arranged on one side of the fixed pressure block and its lower end is arranged on the bearing base plate.

[0008] The fixed pressure block is provided with a protrusion, and the protrusion is provided with a guide hole. The protrusion is sleeved on the guide shaft through the guide hole.

[0009] As a supplement to the technical solution of this utility model, it also includes a limiting plate. The middle part of the supporting substrate is provided with a boss. The middle part of the limiting plate is set on the boss in the middle part of the supporting substrate by screws, so that the limiting plates on both sides of the boss are suspended. A protrusion extending along its width direction is provided in the middle part of the limiting plate.

[0010] As a supplement to the technical solution of this utility model, a groove is provided on the lower surface of the end of the fixed pressure block in the length direction.

[0011] As a supplement to the technical solution of this utility model, it also includes a limiting block, which is disposed on the supporting substrate. There are at least two sets of limiting blocks, and two adjacent limiting blocks are disposed at intervals.

[0012] As a supplement to the technical solution of this utility model, an auxiliary pressure plate is also included. The auxiliary pressure plate is located below the fixed pressure block, and its upper end is connected to the fixed pressure block by bolts.

[0013] As a supplement to the technical solution of this utility model, it also includes a first reversing valve and a second reversing valve, wherein the first reversing valve is connected to the first cylinder and the second reversing valve is connected to the second cylinder.

[0014] Beneficial effects: The galvanized part enlarging fixture disclosed in this utility model can fix the workpiece, making it easier for manual drilling to enlarge the hole, greatly reducing the risk during enlarging, and improving the enlarging efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 A schematic diagram of the tooling structure for fixing a slotted workpiece.

[0017] Figure 3 A schematic diagram of the tooling structure for fixing a slotted workpiece.

[0018] Figure 4 A schematic diagram of the tooling structure for fixing a columnar workpiece.

[0019] Figure 5 This is a schematic diagram of the limiting plate structure.

[0020] Figure 6 This is a schematic diagram of the substrate structure.

[0021] In the figure: 1. Base, 2. First cylinder, 3. Bearing base plate, 4. Fixed pressure block, 5. Second cylinder, 6. Rack, 7. Rotary support, 8. First reversing valve, 9. Second reversing valve, 10. Protective shell, 11. Guide shaft, 12. Boss, 13. Limiting plate, 14. Limiting block, 15. Auxiliary pressure plate, 16. Groove-shaped workpiece, 17. Columnar workpiece. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figures 1 to 6 As shown, a galvanized part enlarging fixture is used to fix the galvanized workpiece, facilitating manual enlarging of the hole using a drill bit. It includes a base 1, a first cylinder 2, a bearing plate 3, a fixing block 4, a second cylinder 5, a rack 6, a rotating support 7, a gear disk, and a protective shell 10.

[0025] The rotating support 7 is connected to the base 1 via a rotating shaft. Specifically, the lower end of the rotating shaft is connected to the base 1 via a bearing, and the rotating support 7 is located at the upper end of the rotating shaft, allowing the rotating support 7 to rotate.

[0026] The gear disk is mounted on the rotating shaft and located below the rotating support 7. The first cylinder 2 is mounted on the base 1, and the end of the piston rod of the first cylinder 2 is provided with a rack 6. The rack 6 meshes with the gear disk, so that the extension or retraction of the piston rod of the first cylinder 2 can drive the gear disk to rotate, thereby driving the rotating base 1 to rotate.

[0027] The protective shell 10 is mounted on the rotating support 7. The second cylinder 5 is located inside the protective shell 10. The upper end of the protective shell 10 is provided with a through hole for the piston rod of the second cylinder 5 to extend. The end of the piston rod of the second cylinder 5 is provided with a fixing block 4. The upper end of the protective shell 10 is provided with a bearing base plate 3, which is located below the fixing block 4.

[0028] When it is necessary to enlarge the hole of the workpiece, the workpiece is placed on the support plate 3. Then, the piston rod of the second cylinder 5 retracts, causing the fixed pressure block 4 to move downward, so that the fixed pressure block 4 and the support plate 3 clamp the workpiece and enlarge one side of the workpiece. After the hole enlargement on one side is completed, the piston rod of the first cylinder 2 extends and drives the rotating support 7 to rotate through the rack 6 and gear disk structure, so that the workpiece rotates 180 degrees and enlarges the hole on the other side of the workpiece.

[0029] As a preferred technical solution of this utility model, it also includes a guide shaft 11, which is vertically arranged on one side of the fixed pressure block 4, and its lower end is arranged on the bearing base plate 3.

[0030] The fixed pressure block 4 is provided with a protrusion, and the protrusion is provided with a guide hole. The protrusion is sleeved on the guide shaft 11 through the guide hole. As the piston rod of the second cylinder 5 extends or retracts, the guide shaft 11 can guide the lifting and lowering movement of the fixed pressure block 4.

[0031] This tooling is used to limit the position of the groove-shaped workpiece 16. The lower part of the groove-shaped workpiece 16 is a U-shaped groove structure with an opening facing downwards. The groove-shaped workpiece 16 is also provided with a vertical plate that is vertically arranged in the U-shaped groove.

[0032] As a preferred embodiment of this utility model, it further includes a limiting plate 13. A boss 12 is provided in the middle of the supporting substrate 3. The limiting plate 13 is screwed onto the boss 12 in the middle of the supporting substrate 3, so that the limiting plates 13 on both sides of the boss 12 are suspended, leaving a gap between them and the supporting substrate 3. When limiting the grooved workpiece 16, the grooved workpiece 16 is fastened onto the limiting plate 13 located on either side of the boss 12. The limiting plate 13 is located within the groove of the grooved workpiece 16 and is used to support the workpiece. A protrusion extending along its width is provided in the middle of the limiting plate 13, allowing the end of the grooved workpiece 16 to abut against the protrusion in the middle of the limiting plate 13. This allows the grooved workpiece 16 to be limited when placed on the limiting plate 13. A strip-shaped hole is provided in the middle of the limiting plate 13 for the cylinder piston rod and guide shaft 11 to pass through.

[0033] As a supplement to the above technical solution, the boss 12 and the limiting block 14 are spaced apart so that the boss 12 and the limiting block 14 can limit the columnar workpiece 17 when the limiting plate 13 is not provided.

[0034] As a supplement to the above technical solution, a groove is provided on the lower surface of the end of the fixed pressure block 4 in the length direction. When the end of the workpiece abuts against the protrusion in the middle of the limiting plate 13, the upper end of the vertical plate of the workpiece is located in the groove on the lower surface of the fixed pressure block 4 as the fixed pressure block 4 descends.

[0035] In the above technical solution, when it is necessary to limit the columnar workpiece 17, the limiting plate 13 needs to be removed and the auxiliary pressure plate 15 needs to be installed.

[0036] As a preferred technical solution of the utility model, this tooling can also be used to limit the columnar workpiece 17. The middle part of the columnar workpiece 17 is a columnar structure. In order to avoid misalignment between the workpiece and the supporting base plate 3, the supporting base plate 3 is provided with a limiting block 14. The limiting block 14 is disposed on the supporting base plate 3. There are at least two sets of limiting blocks 14. Two adjacent limiting blocks 14 are spaced apart. The area between the two sets of limiting blocks 14 is used to limit the middle part of the workpiece.

[0037] When limiting the position of a workpiece with a columnar structure in the middle, the limiting plate 13 needs to be disassembled.

[0038] As a supplement to the above technical solution, since the lower surface of the fixed pressure block 4 is provided with a groove, the groove position is easy to scratch the surface of the columnar workpiece 17 when the second cylinder 5 is pressed down. In view of this, the tooling also includes an auxiliary pressure plate 15, which is located below the fixed pressure block 4 and its upper end is connected to the fixed pressure block 4 by bolts.

[0039] As a preferred embodiment of this utility model, it further includes a first reversing valve 8 and a second reversing valve 9. The first reversing valve 8 is connected to the first cylinder 2 and is used to drive the extension and retraction of the piston rod of the first cylinder 2. The second reversing valve 9 is connected to the second cylinder 5 and is used to drive the extension and retraction of the piston rod of the second cylinder 5.

[0040] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tooling for enlarging holes in galvanized parts, characterized in that, It includes a base (1), a first cylinder (2), a bearing plate (3), a fixing block (4), a second cylinder (5), a rack (6), a rotating support (7), a rotating shaft, a gear disk, and a protective shell (10); The rotating support (7) is located on the upper end of the rotating shaft, and the lower end of the rotating shaft is connected to the base (1) through a bearing. The gear disk is located on the rotating shaft and below the rotating support (7). The first cylinder (2) is located on the base (1), and the end of the piston rod of the first cylinder (2) is provided with a rack (6), which meshes with the gear disk. The protective shell (10) is mounted on the rotating support (7), and the second cylinder (5) is mounted inside the protective shell (10). The upper end of the protective shell (10) is provided with a through hole for the piston rod of the second cylinder (5) to extend. The end of the piston rod of the second cylinder (5) is provided with a fixing block (4). The upper end of the protective shell (10) is provided with a bearing base plate (3), which is located below the fixing block (4).

2. The galvanized part enlarging tool according to claim 1, characterized in that, It also includes a guide shaft (11), which is vertically arranged on one side of the fixed pressure block (4), and its lower end is arranged on the bearing base plate (3); The fixed pressure block (4) is provided with a protrusion, and the protrusion is provided with a guide hole. The protrusion is sleeved on the guide shaft (11) through the guide hole.

3. The galvanized part enlarging tool according to claim 1, characterized in that, It also includes a limiting plate (13), and a boss (12) is provided in the middle of the bearing substrate (3). The middle part of the limiting plate (13) is set on the boss (12) in the middle of the bearing substrate (3) by screws, so that the limiting plate (13) on both sides of the boss (12) is suspended; a protrusion extending along its width direction is provided in the middle of the limiting plate (13).

4. The galvanized part enlarging tool according to claim 3, characterized in that, The fixed pressure block (4) has a groove on the lower surface of its end along the length direction.

5. The galvanized part enlarging tool according to claim 1, characterized in that, It also includes a limiting block (14), which is disposed on the carrier substrate (3). There are at least two sets of limiting blocks (14), and two adjacent limiting blocks (14) are spaced apart.

6. The galvanized part enlarging tool according to claim 5, characterized in that, It also includes an auxiliary pressure plate (15), which is located below the fixed pressure block (4), and its upper end is connected to the fixed pressure block (4) by bolts.

7. The galvanized part enlarging tool according to claim 1, characterized in that, It also includes a first reversing valve (8) and a second reversing valve (9), the first reversing valve (8) being connected to the first cylinder (2) and the second reversing valve (9) being connected to the second cylinder (5).

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