CN112122910A - Positioning pin press-fitting process for forging spacer wire clamp - Google Patents
Positioning pin press-fitting process for forging spacer wire clamp Download PDFInfo
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- CN112122910A CN112122910A CN202011161298.6A CN202011161298A CN112122910A CN 112122910 A CN112122910 A CN 112122910A CN 202011161298 A CN202011161298 A CN 202011161298A CN 112122910 A CN112122910 A CN 112122910A
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- China
- Prior art keywords
- positioning pin
- press
- base plate
- wire clamp
- spacer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a positioning pin press-fitting process for forging a spacer wire clamp, wherein the spacer wire clamp is forged and formed; the mounting process comprises the following steps: 1) drilling a positioning pin hole; 2) preassembling a positioning pin; 3) punching a positioning pin; the method is characterized in that in the step 3), a press is adopted to punch the positioning pin; a press-fitting tool is arranged on the press; the press-fitting tool comprises an upper base plate, a lower base plate, a cavity die and a guide sleeve, wherein the upper base plate is fixedly connected to the lower surface of an upper sliding block of the press, the lower base plate is fixedly connected to the upper surface of a lower fixing block of the press, the cavity die is fixedly connected to the lower base plate, and the guide sleeve is fixedly connected to the upper base plate; the depth of the guide sleeve is the height of the positioning pin exposed out of the wire clamp part of the forged spacer.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a positioning pin press-fitting process for forging a spacer wire clamp.
Background
With the increasing mechanical property of spacer hardware by national grid companies, the cast spacer processed and produced by using a high-pressure casting process in the same industry in China cannot meet new requirements, and the companies collect a large amount of technical personnel to optimize and improve the original processing process and processing equipment, so that the casting process is successfully changed into a forging process. The mechanical and mechanical properties of the forged spacer hardware are at least 2 times of those of a cast product, and the forged spacer hardware passes the net hanging verification of China network companies, has very obvious effect, and gives full certainty to the quality of forged spacer hardware developed by China network companies.
The forging process is different from the casting process, the spacer wire clamp positioning pin can be placed in the corresponding position of the casting cavity die in advance during casting, molten aluminum is rapidly pushed under high pressure to be injected into the die cavity, and the wire clamp positioning pin can be integrated with the wire clamp body after being cooled by the molten aluminum. And (4) drilling and processing the forged spacing bar clamp after the forging blank is finished, and then installing the positioning pin. The quality and quantity of manual single hole drilling and manual assembly of pins has not met the company's ordered production requirements due to the large percentage of wire clamps in the overall product structure.
Disclosure of Invention
In order to solve the problems, the invention provides a positioning pin press-fitting process for forging a spacer wire clamp.
The technical scheme of the invention is as follows:
a press-fitting process for a positioning pin for forging a spacer wire clamp is characterized in that the spacer wire clamp is forged and formed; the mounting process comprises the following steps: 1) drilling a positioning pin hole; 2) preassembling a positioning pin; 3) punching a positioning pin; in the step 3), stamping the positioning pin by using a press; and the press is provided with a press fitting tool.
The press-fitting tool comprises an upper base plate, a lower base plate, a cavity die and a guide sleeve, wherein the upper base plate is fixedly connected to the lower surface of an upper sliding block of the press, the lower base plate is fixedly connected to the upper surface of a lower fixing block of the press, the cavity die is fixedly connected to the lower base plate, and the guide sleeve is fixedly connected to the upper base plate; the depth of the guide sleeve is the height of the positioning pin exposed out of the wire clamp part of the forged spacer.
Placing a forged spacer bar wire clamp pre-installed with a positioning pin on a cavity die, and positioning by the cavity die, wherein the positioning pin and the center of the guide sleeve are on the same axis; starting the press, and enabling an upper sliding block of the press to move downwards to drive an upper bottom plate and a guide sleeve to move downwards; and the positioning pin extends into the guide sleeve and abuts against the deep part of the guide sleeve, the guide sleeve continues to move downwards, the positioning pin is punched, and the positioning pin and the forged spacer wire clamp are connected to complete press mounting of the positioning pin.
The press is adopted to apply enough force to the instantaneous positioning pin to achieve the purpose of punching the positioning pin, the applied force is larger and stronger than that of manual work, and the large force is considered to be applied to two ends of the positioning pin, and the positioning pin has a certain length, so that the positioning pin is easy to bend, deform and skew during punching; therefore, a positioning pin press-fitting tool is arranged in a matched mode, when the positioning pin is punched, the part, exposed out of the forged spacer wire clamp, of the positioning pin extends into the guide sleeve, and bending, deformation and deflection cannot occur under the limitation of the guide sleeve.
The cavity die is a convex block, the front outline of the convex block is matched with the forged spacer wire clamp, and the convex block, the lower bottom plate and the middle groove arranged on the lower bottom plate jointly accommodate the groove of the forged spacer wire clamp.
The press-fitting tool further comprises an upper pressure-bearing table and a lower pressure-bearing table, wherein the upper pressure-bearing table is fixedly connected to the upper bottom plate, and the lower pressure-bearing tables are fixedly connected to the lower bottom plate and correspond to each other one by one; in the process of stamping the positioning pin, the corresponding upper pressure bearing platform and the lower pressure bearing platform are abutted.
The middle section of the positioning pin is provided with straight knurling on the outer diameter, the positioning pin is preassembled to the forged spacer wire clamp, the straight knurling position of the positioning pin extends into a positioning pin hole, and the positioning pin is in large interference fit with the positioning pin hole after the positioning pin is stamped; thus, the pin is guaranteed not to move axially and rotationally after being stressed.
The press adopts a gas-liquid pressure cylinder as a power source; by utilizing a gas-liquid pressurization principle and taking compressed air as a power source, the characteristics of no hydraulic pressure rise and noise disturbance, high action speed and high output are achieved, and the energy is saved by more than 30%.
Drilling a positioning pin hole by using a drilling machine in the step (1); the drilling machine is a double-drill-bit drilling platform, and a drilling tool is installed on the drilling machine.
The drilling tool comprises a base plate, a fixed die and two movable dies, wherein the base plate is fixedly connected to a workbench of a drill floor, the fixed dies are fixedly connected to the base plate, the two movable dies are slidably mounted on the base plate, the two movable dies are respectively located on two sides of the fixed dies and connected with air cylinders fixedly mounted on the base plate, the two movable dies are driven by the air cylinders to move relative to the fixed dies, and the fixed dies and the movable dies are matched to form a wire clamping groove for accommodating a forged spacer.
Placing two forged spacer wire clamps in the groove in a one-to-one correspondence manner, and clamping and fixing the two forged spacer wire clamps by a fixed die and a movable die; and starting the drill floor, enabling the two drill bits to correspond to each other one by one and simultaneously drilling the two forged spacer wire clamps to finish drilling the positioning pin holes.
The press mounting device has the advantages that the design is reasonable, the concept is ingenious, press mounting is carried out by adopting drilling of the drilling machine and stamping of the positioning pin by the press, and the press mounting efficiency of the positioning pin is greatly improved; a press-fitting tool is designed in a matched manner, so that the positioning pin cannot be inclined in the process of stamping the positioning pin, and the yield is high; a double-drill-bit drilling machine is adopted and is matched with a drilling tool, and two forged spacer wire clamps are clamped and processed at one time, so that 2-3 operators can operate, and the per-operator production efficiency is doubled.
Drawings
FIG. 1 is a press self-contained schematic.
Fig. 2 is a schematic diagram of a press fitting tool in a split manner.
FIG. 3 is a self-contained schematic view of the drill press.
Fig. 4 is a front view of the drilling tool.
Fig. 5 is a top view of the drilling tool.
In the drawing, the press comprises a press 1, an upper slide block 1-1, a lower fixed block 1-2, a gas-liquid pressure cylinder 1-3, a press-mounting tool 2, an upper base plate 2-1, a lower base plate 2-2, a cavity die 2-4, a guide sleeve 2-3, an upper pressure-bearing table 2-5, a lower pressure-bearing table 2-6, a drilling machine 3, a drill bit 3-1, a drilling tool 4, a base plate 4-1, a fixed die 4-2, a movable die 4-3 and a cylinder 4-4.
Detailed Description
1-5, a locating pin press fitting process for forging a spacer wire clamp, wherein the forged spacer wire clamp is forged and formed; the mounting process comprises the following steps: 1) drilling a positioning pin hole; 2) preassembling a positioning pin; 3) punching a positioning pin; drilling a positioning pin hole by using a drilling machine 3 in the step (1), and stamping the positioning pin by using a press 1 in the step 3); the drilling machine 3 is a double-drill drilling machine and is provided with a drilling tool 4; and the press 1 is provided with a press-mounting tool 2.
The drilling tool 4 comprises a base plate 4-1, a fixed die 4-2 and two movable dies 4-3, wherein the base plate 4-1 is fixedly connected to a workbench of a drill floor 3, the fixed dies 4-2 are one and fixedly connected to the base plate 4-1, the two movable dies 4-3 are slidably mounted on the base plate 4-1, the two movable dies 4-3 are respectively positioned on two sides of the fixed die 4-2 and connected with an air cylinder 4-4 fixedly mounted on the base plate, the air cylinder 4-4 drives the movable dies to move relative to the fixed die 4-2, and the fixed die 4-2 and the movable dies 4-3 are matched to form a wire clamping groove for accommodating a forging spacer.
Placing two forged spacer wire clamps in the groove in a one-to-one correspondence manner, and clamping and fixing the two forged spacer wire clamps by a fixed die 4-2 and a movable die 4-3; and starting the drill floor 3, enabling the two drill bits 3-1 to correspond one by one and simultaneously drilling the two forged spacer wire clamps to finish drilling the positioning pin holes.
The press-fitting tool 2 comprises an upper base plate 2-1, a lower base plate 2-2, a cavity die 2-4 and a guide sleeve 2-3, wherein the upper base plate 2-1 is fixedly connected to the lower surface of an upper sliding block 1-1 of a press, the lower base plate 2-2 is fixedly connected to the upper surface of a lower fixing block 1-2 of the press, the cavity die 2-4 is fixedly connected to the lower base plate 2-2, and the guide sleeve 2-3 is fixedly connected to the upper base plate 2-1; the depth of the guide sleeve 2-3 is the height of the positioning pin exposed out of the wire clamp part of the forged spacer; the cavity die 2-4 is a convex block, the front outline of the convex block is matched with the forged spacer wire clamp, and the convex block, the lower bottom plate and the middle groove arranged on the lower bottom plate jointly accommodate the groove of the forged spacer wire clamp; the press-mounting tool 2 further comprises an upper pressure-bearing table 2-5 and a lower pressure-bearing table 2-6, wherein the upper pressure-bearing table 2-5 is fixedly connected to the upper bottom plate 2-1, and the lower pressure-bearing tables 2-6 are fixedly connected to the lower bottom plate 2-2 and correspond to one another; in the process of punching the positioning pin, the corresponding upper pressure bearing platform 2-5 and the corresponding lower pressure bearing platform 2-6 are abutted; the middle section of the positioning pin is provided with straight knurling on the outer diameter, the positioning pin is preassembled to the forged spacer wire clamp, the straight knurling position of the positioning pin extends into a positioning pin hole, and the positioning pin is in large interference fit with the positioning pin hole after the positioning pin is stamped; the press 3 adopts a gas-liquid pressure cylinder 3-3 as a power source.
Placing a forged spacer wire clamp preassembled with a positioning pin on a cavity die 2-4, and positioning by the cavity die 2-4, wherein the positioning pin and the center of a guide sleeve 2-3 are on the same axis; starting a press 3, and enabling an upper sliding block 1-1 of the press to move downwards to drive an upper bottom plate 2-1 and a guide sleeve 2-3 to move downwards; and (3) until the positioning pin extends into the guide sleeve 2-3 and abuts against the depth of the guide sleeve 2-3, continuously moving the guide sleeve 2-3 downwards, stamping the positioning pin, connecting the positioning pin with the forged spacer wire clamp, and completing press mounting of the positioning pin.
Because of the limited character expression, there exist practically unlimited specific structures, and it will be apparent to those skilled in the art that a number of improvements, decorations, or changes may be made without departing from the principles of the present invention, or the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (6)
1. A press-fitting process for a positioning pin for forging a spacer wire clamp is characterized in that the spacer wire clamp is forged and formed; the mounting process comprises the following steps: 1) drilling a positioning pin hole; 2) preassembling a positioning pin; 3) punching a positioning pin; the method is characterized in that in the step 3), a press is adopted to punch the positioning pin; a press-fitting tool is arranged on the press;
the press-fitting tool comprises an upper base plate, a lower base plate, a cavity die and a guide sleeve, wherein the upper base plate is fixedly connected to the lower surface of an upper sliding block of the press, the lower base plate is fixedly connected to the upper surface of a lower fixing block of the press, the cavity die is fixedly connected to the lower base plate, and the guide sleeve is fixedly connected to the upper base plate; the depth of the guide sleeve is the height of the positioning pin exposed out of the wire clamp part of the forged spacer;
placing a forged spacer bar wire clamp pre-installed with a positioning pin on a cavity die, and positioning by the cavity die, wherein the positioning pin and the center of the guide sleeve are on the same axis; starting the press, and enabling an upper sliding block of the press to move downwards to drive an upper bottom plate and a guide sleeve to move downwards; and the positioning pin extends into the guide sleeve and abuts against the deep part of the guide sleeve, the guide sleeve continues to move downwards, the positioning pin is punched, and the positioning pin and the forged spacer wire clamp are connected to complete press mounting of the positioning pin.
2. The press fitting process of the positioning pin for forging the spacer wire clamp as claimed in claim 1, wherein the cavity die is a convex block, the front profile of the convex block is matched with the spacer wire clamp, and the convex block, the lower bottom plate and the middle groove arranged on the lower bottom plate jointly process to accommodate the groove of the spacer wire clamp.
3. The positioning pin press-fitting process for forging the spacer wire clamp according to claim 1, wherein the press-fitting tool further comprises an upper pressure bearing table and a lower pressure bearing table, the upper pressure bearing table is fixedly connected to the upper base plate, and the lower pressure bearing tables are fixedly connected to the lower base plate in a one-to-one correspondence manner; in the process of stamping the positioning pin, the corresponding upper pressure bearing platform and the lower pressure bearing platform are abutted.
4. The press-fitting process of the positioning pin for forging the spacer wire clamp as claimed in claim 1, wherein the positioning pin is pre-installed on the forged spacer wire clamp by straight knurling on the outer diameter of the middle section of the positioning pin, the straight knurling extends into the positioning pin hole, and the positioning pin is in large interference fit with the positioning pin hole after the positioning pin is punched.
5. The press-fitting process of the positioning pin for forging the spacer wire clamp according to claim 1, wherein the press adopts a gas-liquid pressurizing cylinder as a power source.
6. The press fitting process of the positioning pin for forging the spacer wire clamp as claimed in claim 1, wherein a positioning pin hole is drilled in the step (1); the drilling machine is a double-drill drilling machine, and a drilling tool is arranged on the drilling machine;
the drilling tool comprises a base plate, fixed dies and two moving dies, wherein the base plate is fixedly connected to a workbench of a drill floor, the fixed dies are fixedly connected to the base plate, the two moving dies are slidably mounted on the base plate, the two moving dies are respectively positioned on two sides of the fixed dies and connected with air cylinders fixedly mounted on the base plate, the two moving dies and the fixed dies move relative to each other through air cylinder driving action, and the fixed dies and the moving dies are matched to form a wire clamping groove for accommodating a forged spacer;
placing two forged spacer wire clamps in the groove in a one-to-one correspondence manner, and clamping and fixing the two forged spacer wire clamps by a fixed die and a movable die; and starting the drill floor, enabling the two drill bits to correspond to each other one by one and simultaneously drilling the two forged spacer wire clamps to finish drilling the positioning pin holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161298.6A CN112122910B (en) | 2020-10-27 | 2020-10-27 | Positioning pin press-fitting process for forging spacer wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161298.6A CN112122910B (en) | 2020-10-27 | 2020-10-27 | Positioning pin press-fitting process for forging spacer wire clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112122910A true CN112122910A (en) | 2020-12-25 |
| CN112122910B CN112122910B (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011161298.6A Active CN112122910B (en) | 2020-10-27 | 2020-10-27 | Positioning pin press-fitting process for forging spacer wire clamp |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333920B1 (en) * | 1965-07-16 | 1978-09-18 | ||
| CN101872945A (en) * | 2009-04-25 | 2010-10-27 | 江苏天南电力器材有限公司 | Anti-skidding conductor spacer having anti-abrasion cushion |
| CN203495521U (en) * | 2013-08-27 | 2014-03-26 | 上海采埃孚转向系统有限公司 | Assembly equipment for motor assistance type steering device sensing unit |
| CN204621547U (en) * | 2015-05-11 | 2015-09-09 | 西安华毅自动化设备有限公司 | A kind of automatic punching pad equipment |
| CN109304622A (en) * | 2018-12-11 | 2019-02-05 | 南京林业大学 | A kind of semi-automatic pin pressing machine |
| CN209868039U (en) * | 2019-04-17 | 2019-12-31 | 中国电建集团河南电力器材有限公司 | Conductor spacer fastener drilling frock |
| CN110947855A (en) * | 2019-11-27 | 2020-04-03 | 江苏天南电力器材有限公司 | Anti-falling process and machining tool for multi-split spacer wire clamp fixing bolt |
-
2020
- 2020-10-27 CN CN202011161298.6A patent/CN112122910B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333920B1 (en) * | 1965-07-16 | 1978-09-18 | ||
| CN101872945A (en) * | 2009-04-25 | 2010-10-27 | 江苏天南电力器材有限公司 | Anti-skidding conductor spacer having anti-abrasion cushion |
| CN203495521U (en) * | 2013-08-27 | 2014-03-26 | 上海采埃孚转向系统有限公司 | Assembly equipment for motor assistance type steering device sensing unit |
| CN204621547U (en) * | 2015-05-11 | 2015-09-09 | 西安华毅自动化设备有限公司 | A kind of automatic punching pad equipment |
| CN109304622A (en) * | 2018-12-11 | 2019-02-05 | 南京林业大学 | A kind of semi-automatic pin pressing machine |
| CN209868039U (en) * | 2019-04-17 | 2019-12-31 | 中国电建集团河南电力器材有限公司 | Conductor spacer fastener drilling frock |
| CN110947855A (en) * | 2019-11-27 | 2020-04-03 | 江苏天南电力器材有限公司 | Anti-falling process and machining tool for multi-split spacer wire clamp fixing bolt |
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| Publication number | Publication date |
|---|---|
| CN112122910B (en) | 2022-02-22 |
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