CN211445963U

CN211445963U - Hard chromium plated hanging rod clamp

Info

Publication number: CN211445963U
Application number: CN201922303686.2U
Authority: CN
Inventors: 李富鑫; 林波; 周德宏
Original assignee: AVIC Guizhou Aircraft Co Ltd
Current assignee: AVIC Guizhou Aircraft Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-09-08
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a hard chromium plating hanging rod clamp, which comprises a hook, an upper rod, a joint and a lower rod, wherein the hook is fixedly connected with the upper end of the upper rod, the lower end of the upper rod is fixedly connected with the joint, and the other end of the joint is fixedly connected with the upper end of the lower rod; the lower end of the lower rod is provided with threads, the lower end of the lower rod is connected with the plug, and the lower rod further comprises two nuts in threaded fit with the lower rod. The connector is provided with a plurality of connector through holes, and the plug is provided with a plurality of matched plug through holes. The utility model has simple structure, diversified materials, easy processing, improved performance, flexible and convenient operation and recycling; the problems that the upper, middle and lower thicknesses of the chromium plating of the tubular workpiece to be processed are uneven, the plating is locally blackened, loosened and peeled, and the plating thickness does not reach the standard are solved, the production yield is greatly improved, and the production period is shortened.

Description

Hard chromium plated hanging rod clamp

Technical Field

The utility model belongs to the technical field of surface treatment, a peg anchor clamps that surface treatment used is related to, concretely relates to hard chromium-plated peg anchor clamps.

Background

At present, when a pipe is machined and a workpiece is machined, a known hard chromium plating clamp clamps the workpiece by using a copper hook, performs corresponding protection, performs pre-plating treatment on the clamped workpiece, and then directly places the workpiece into a chromium plating groove to start machining.

The use of the above-mentioned clamp will bring about the following disadvantages: 1. the upper, middle and lower thicknesses of a chromium plating layer generated on the outer surface of a tubular workpiece to be processed are difficult to be ensured to be uniform, and the size required by a drawing is difficult to be achieved; 2. the phenomena of over-concentrated local current, blackened plating layer, looseness, porosity, even peeling and the like are easily caused; 3. it is difficult to ensure the hardness of the chromium plating layer to reach the standard.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a peg anchor clamps of hard chromium plating can improve the production qualification rate of being processed the work piece greatly, has shortened production cycle.

The technical scheme of the utility model is that: a hard chromium plated hanging rod clamp comprises a hook, an upper rod, a joint and a lower rod, wherein the hook is fixedly connected with the upper end of the upper rod, the lower end of the upper rod is fixedly connected with the joint, and the other end of the joint is fixedly connected with the upper end of the lower rod; the radial section of the joint is circular, and a plurality of joint through holes are formed in the joint; the lower end of the lower rod is provided with threads, and the lower end of the lower rod is connected with the plug; and the screw cap is matched with the lower rod in a threaded manner.

Furthermore, there are 4 joint through holes on the joint, and the diameter of the joint through hole is 4 mm.

Furthermore, the outer diameter of the lower end thread of the lower rod is 14mm, and the plug is rotatably connected to the lower rod through the thread.

Furthermore, the radial section of the plug is circular, and a plurality of plug through holes are formed in the plug.

Furthermore, 8 plug through holes are formed in the plug, and the diameter of each plug through hole is 4 mm.

Furthermore, the device also comprises an auxiliary cathode, wherein the auxiliary cathode is a ring made of copper wires and is arranged at the upper end and the lower end of the processed workpiece.

Further, the hook is a copper hook.

The utility model has the advantages that: simple structure, material diversification, workable, the performance improves, and the flexible operation is convenient, circulated use. The utility model provides a tubulose by processing work piece chromium plating layer upper and middle, lower uneven thickness, cladding material part blacken, loose, fall the skin, the problem that cladding material thickness is not up to standard has improved the production qualification rate greatly, has shortened production cycle.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic view of a plug according to an embodiment of the present invention;

fig. 3 is a schematic view of a joint according to an embodiment of the invention;

FIG. 4 is a schematic view of a nut according to an embodiment of the present invention;

fig. 5 is a schematic view of an auxiliary cathode according to an embodiment of the present invention;

the device comprises a hook 1, an upper rod 2, a joint 3, a lower rod 4, a plug 5 and a nut 6.

Detailed Description

This section is an embodiment of the present invention for explaining and explaining the technical solution of the present invention.

A hard chromium plated hanging rod clamp comprises a copper hook 1, an upper rod 2, a joint 3 and a lower rod 4, wherein the copper hook 1 is fixedly connected with the upper end of the upper rod 2, the lower end of the upper rod 2 is fixedly connected with the joint 3, and the other end of the joint 3 is fixedly connected with the upper end of the lower rod 4; the radial section of the joint 3 is circular, and a plurality of joint through holes are formed in the joint 3; the lower end of the lower rod 4 is provided with threads, and the plug 5 is arranged on the threads at the lower end of the lower rod 4; the device also comprises two screw caps 6 which are in threaded fit with the lower rod 4; the number of the joint through holes on the joint 3 is 4, and the diameter of each joint through hole is 4 mm.

The radial section of the plug 5 is circular, and a plurality of plug through holes are formed in the plug 5. 8 plug through holes are formed in the plug 5, and the diameter of each plug through hole is 4 mm.

The external diameter of the lower end thread of the lower rod 4 is 14 mm.

The auxiliary cathode is a ring made of copper wires and is arranged at the upper end and the lower end of a workpiece to be processed.

Another embodiment of the present invention is described below with reference to the drawings.

The utility model discloses a clamp structure is shown in fig. 1, and this anchor clamps are made according to following step and are obtained:

welding a copper plate: welding the copper hook 1 and the upper rod 2 together;

turning a joint: turning the joint 3 according to the manufacturing drawing;

drilling a hole on the joint: drilling 4 through holes with the diameter of 4mm on the joint 3 after the turning is finished;

welding the upper part of the joint: the upper rod 2 and the upper end of the joint 3 are embedded together and then welded and reinforced, and good conductivity is ensured;

turning a lower rod thread: turning an external thread with the external diameter of 14 on the lower rod 4 according to the requirements of a drawing;

welding the lower part of the joint: the lower rod 4 and the lower end of the joint 3 are embedded together and then welded and reinforced, and good conductivity is ensured;

manufacturing a plug: manufacturing a plug 5 according to a drawing;

drilling a hole on the plug: 8 through holes with the diameter of 4mm are drilled in the plug 5;

2 nuts 6 with the outer diameter of 14mm are manufactured and used in a matched mode;

manufacturing an auxiliary cathode: according to the size and practical experience of the chromium coating, the auxiliary cathode is made of copper wire.

The utility model discloses a after the couple anchor clamps preparation was accomplished, emboliaed the lower beam 4 with the processed work piece of pipe dress, if the processed work piece has the internal screw thread, can screw into the screw thread and connect 3, later screw into the one end of 4 threaded lower beams with end cap 5, also screw into the one end of 4 threaded lower beams with nut 6 again and screw up.

The utility model discloses a theory of operation:

the processed pipe fitting part is sleeved in the lower rod 4 and firmly fixed between the joint 3 and the plug 5, the copper hook 1 aims to ensure that the clamp has good conductivity, the bath solution can freely flow into the inner cavity of the processed workpiece from the small hole on the joint 3, the solution flowing into the inner cavity of the processed workpiece can also freely flow out from the small hole on the plug (5) to form convection, the aim is to ensure that the pressure and the temperature of the inner side and the outer side of the processed workpiece are consistent, when current flows through the surface of the processed workpiece, the inner side and the outer side of the workpiece can form uniformly distributed electric fields, so that the bath solution has good dispersion capacity and plating capacity, and the chromium plating quality is ensured. The copper wire is made into an annular auxiliary cathode and is arranged at the upper end and the lower end of the processed workpiece, so that redundant electric fields are absorbed, the thicknesses of the upper plating layer, the middle plating layer and the lower plating layer of the processed workpiece are uniform, and the sizes specified by relevant standards or technical requirements are achieved.

Claims

1. The hard chromium plated hanging rod clamp is characterized by comprising a hook, an upper rod (2), a joint (3) and a lower rod (4), wherein the hook is fixedly connected with the upper end of the upper rod (2), the lower end of the upper rod (2) is fixedly connected with the joint (3), and the other end of the joint (3) is fixedly connected with the upper end of the lower rod (4); the radial section of the joint (3) is circular, and a plurality of joint through holes are formed in the joint (3); the lower end of the lower rod (4) is provided with threads, and the lower end of the lower rod (4) is connected with the plug (5); and the device also comprises two screw caps (6) which are in threaded fit with the lower rod (4).

2. The hard chromium plated hanging rod clamp as claimed in claim 1, wherein the number of the joint through holes on the joint (3) is 4, and the diameter of the joint through hole is 4 mm.

3. The hard chromium plating hanger rod clamp as claimed in claim 2, wherein the lower end of the lower rod (4) has a thread outer diameter of 14mm, and the plug (5) is rotatably connected to the lower rod (4) through a thread.

4. The hard chromium plated hanging rod clamp as claimed in claim 3, wherein the radial section of the plug (5) is circular, and a plurality of plug through holes are formed in the plug (5).

5. The hard chromium plated hanging rod clamp as claimed in claim 4, wherein the number of the plug through holes on the plug (5) is 8, and the diameter of the plug through holes is 4 mm.

6. The hard chromium plated hanging rod clamp according to claim 1, further comprising an auxiliary cathode, wherein the auxiliary cathode is a ring made of copper wire and is installed at the upper end and the lower end of the workpiece to be processed.

7. A hard chrome plated hanger bar clamp according to claim 1, wherein the hook is a copper hook (1).