A bending machine for insulating cross arm hardware production

By installing the unloading device at the bottom of the main unit and using a linear motor to drive the feeding plate in the bending machine for producing insulating crossarm fittings, the problem of large space occupation for feeding and unloading in the existing technology is solved, and efficient and precise mass production of the equipment is achieved.

CN224525670UActive Publication Date: 2026-07-21河南固强电力器材有限公司
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河南固强电力器材有限公司
Filing Date
2025-06-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The feeding and unloading devices of existing bending machines used in the production of insulating crossarm fittings occupy a large space, which affects the accuracy and efficiency of mass production.

Method used

Design a bending machine for producing insulating crossarm fittings. The unloading device is installed at the bottom of the main unit. The finished product is automatically pushed by the feeding plate driven by a linear motor. The forming mold is detachable and the feeding plate is hidden, realizing parallel operation of processing and material preparation. The two-half forming mold is fixed for easy installation and maintenance.

Benefits of technology

It reduces equipment footprint, shortens process intervals, and improves processing accuracy and efficiency. It is suitable for mass production of irregularly shaped workpieces and meets the accuracy and efficiency requirements of the power fittings industry.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224525670U_ABST
    Figure CN224525670U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of bending machine, disclose a kind of bending machine for insulating cross arm fitting production, including the mainframe device for supporting fixed and providing bending force, further including the forming device for positioning and supporting raw material forming installed on mainframe device, forming device one end penetrates mainframe device, and unloading device for reciprocating movement push raw material is installed in the lower surface of mainframe device;Mainframe device includes workbench, and workbench is provided with preparatory platform, and preparatory platform rear is provided with mounting groove;Forming device includes forming mould, and forming mould is two half formula, and bottom has the avoidance slot passing through;Unloading device includes reciprocating assembly, and reciprocating assembly is provided with poking plate.The utility model of a kind of bending machine for insulating cross arm fitting production, unloading device is installed in the bottom of mainframe device, reduce length direction space occupation, automatically push finished product by linear motor drive poking plate, without manual intervention, reduce downtime, suitable for batch bending of insulating cross arm fitting.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of bending machine technology, and in particular relates to a bending machine for producing insulating crossarm fittings. Background Technology

[0002] Insulating crossarms are core components in overhead transmission lines used to support conductors and maintain phase-to-phase distances. They are primarily composed of metal structural parts and composite insulation materials. The metal parts are mostly formed by bending. As a crucial connecting component in transmission lines, the bending process of insulating crossarms directly affects the safe operation of the power grid. Specialized hydraulic equipment is required to plastically deform the metal components to form a support structure at a specific angle, while ensuring that the insulation material is not damaged.

[0003] Comparing with Chinese Patent CN214392047U, a bending machine for producing insulating crossarm fittings is disclosed. This machine includes an operating table, a top plate connected to the operating table via multiple support rods, and a punch block connected to the top plate via a hydraulic cylinder. The operating table has a preparatory groove, a track groove, a stamping groove, and an adjusting groove. The preparatory groove and the stamping groove are connected to the track groove. The stamping groove is adapted to the punch block. A horizontal push plate is slidably connected inside the preparatory groove and connected to the operating table via an electric push rod. A vertical push plate is slidably connected inside the track groove and connected to the operating table via an adjusting mechanism. The adjusting mechanism includes an adjusting box and a worm gear. The adjusting box is installed inside the adjusting groove, and the worm gear is rotatably connected to the adjusting box via a motor. A slider meshes with the worm gear and is slidably connected to the adjusting box. The slider is connected to the vertical push plate via a U-shaped frame. This machine exhibits good stability, high reliability, high processing efficiency, and high practicality.

[0004] However, the aforementioned patented feeding and unloading are all set in the length direction of the bend, which occupies a lot of space and seriously increases the moving distance of feeding and unloading, greatly affecting the accuracy and efficiency of mass production of insulating crossarm fittings. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this utility model is to provide a bending machine for producing insulating crossarm fittings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bending machine for producing insulating crossarm fittings includes a main unit for supporting and fixing and providing bending force, and a forming device mounted on the main unit for positioning and supporting raw material forming. One end of the forming device penetrates the main unit, and a discharge device for reciprocating movement and pushing the raw material is installed below the main unit. The main unit includes a worktable with a preparation platform on it. A mounting groove is provided behind the preparation platform, and an end positioning block is provided at one end of the mounting groove. An overrun groove is provided at the bottom of the worktable near the end positioning block, and a pressing component for downward bending is provided behind the worktable. The forming device includes a forming mold, which is bi-half with a clearance groove through the bottom. Side positioning blocks are provided on the forming mold, and the two sides of the forming mold are fixed in the mounting groove by a number of countersunk bolts. The discharge device includes a reciprocating component with a material feeding plate on it.

[0008] Furthermore: the pressing assembly includes a fixed frame fixedly connected to the worktable, and two telescopic cylinders are symmetrically installed on the top of the fixed frame, with a punching head installed between the telescopic ends of the telescopic cylinders.

[0009] Furthermore, the end of the mounting groove away from the end positioning block penetrates the worktable.

[0010] Furthermore: a support and positioning groove is provided inside the molding mold, and a molding groove is provided below the support and positioning groove.

[0011] Furthermore, the upper surface of the molding die is not higher than the surface of the preparatory platform.

[0012] Furthermore: the reciprocating assembly includes two symmetrically arranged linear guides, a linear motor is mounted under the linear guides, and a translation frame is installed between the linear motors.

[0013] Furthermore, the material feeding plate is disposed in the middle of the translation frame and is perpendicular to the translation frame.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. The unloading device is installed at the bottom of the main unit, reducing the space occupied in the length direction. The finished product is automatically pushed by the feeding plate driven by the linear motor without manual intervention, reducing downtime. It is suitable for batch bending of irregular workpieces such as insulating crossarm fittings, and is especially suitable for plastic processing of metal or high-strength composite materials, meeting the dual requirements of precision and efficiency in the power fitting industry.

[0016] 2. The overrun groove hides the material feeding plate, and the clearance groove runs through the bottom of the forming mold, so that the unloading device and the main device can be seamlessly matched, reducing the equipment footprint; the forming mold can be disassembled and replaced to adapt to the processing of workpieces of different specifications, expanding the application scenarios of the equipment.

[0017] 3. By pre-placing the raw materials to be processed on the preparation platform, the forming device simultaneously processes the current workpiece, realizing parallel operation of processing and material preparation, and significantly shortening the process interval time;

[0018] 4. The two-part forming mold is fixed with countersunk bolts, which facilitates installation and maintenance; the forming groove and the stamping head have a high degree of matching, ensuring the consistency of bending angle and improving the standardization level of products. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a bending machine for producing insulating crossarm fittings according to the present invention;

[0020] Figure 2 This is a left view of a bending machine for producing insulating crossarm fittings according to this utility model;

[0021] Figure 3 This is a schematic diagram of the main unit of a bending machine for producing insulating crossarm fittings according to this utility model;

[0022] Figure 4 This is a left view of the main unit of the bending machine for producing insulating crossarm fittings according to this utility model;

[0023] Figure 5 This is a top axonometric view of the forming device of a bending machine for producing insulating crossarm fittings according to this utility model;

[0024] Figure 6 This is a bottom-view axonometric drawing of the forming device of a bending machine for producing insulating crossarm fittings according to this utility model;

[0025] Figure 7 This is a schematic diagram of the unloading device of a bending machine for producing insulating crossarm fittings according to this utility model.

[0026] In the attached drawings, the following are the reference numerals: 101, workbench; 102, mounting groove; 103, overtravel groove; 104, end positioning block; 105, fixing frame; 106, telescopic cylinder; 107, punching head; 108, preparation platform; 201, forming mold; 202, countersunk bolt; 203, side positioning block; 204, support positioning groove; 205, forming groove; 206, clearance groove; 301, linear guide rail; 302, linear motor; 303, translation frame; 304, material feeding plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-7 A bending machine for producing insulating crossarm fittings includes a main unit for supporting and fixing and providing bending force, and a forming device installed on the main unit for positioning and supporting the forming of raw materials. One end of the forming device penetrates the main unit, and a discharge device for reciprocatingly moving and pushing the raw materials is installed below the main unit.

[0029] In this embodiment: the main unit includes a workbench 101, a preparation platform 108 is provided on the workbench 101, a mounting groove 102 is provided behind the preparation platform 108, an end positioning block 104 is provided at one end of the mounting groove 102, an overtravel groove 103 is provided at the bottom of the workbench 101 near the end positioning block 104, and a pressing assembly for pressing and bending is provided behind the workbench 101; the pressing assembly includes a fixing frame 105 fixedly connected to the workbench 101, and two telescopic cylinders are symmetrically mounted on the top of the fixing frame 105. 106, A punch head 107 is installed between the telescopic ends of the telescopic cylinder 106; The mounting groove 102, away from the end positioning block 104, penetrates the worktable 101; The mounting groove 102 of the worktable 101 is used to install the forming mold 201, the preparation platform 108 is used to lay the raw material flat for preparation, the end positioning block 104 is used to position the end of the raw material, the overrun groove 103 is used to hide the material feeding plate 304, and the fixing frame 105 supports the extension of the telescopic cylinder 106 to push the punch head 107 down, pressing the raw material into the forming groove 205 to complete the bending;

[0030] In this embodiment: the forming device includes a forming mold 201, which is a two-part mold with a clearance groove 206 through the bottom. A side positioning block 203 is provided on the forming mold 201. The two sides of the forming mold 201 are fixed in the mounting groove 102 by a number of countersunk bolts 202. A support positioning groove 204 is provided in the forming mold 201, and a forming groove 205 is provided below the support positioning groove 204. The upper surface of the forming mold 201 is not higher than the surface of the preparation platform 108. The forming mold 201 is fixed in the mounting groove 102 of the workbench 101 by the countersunk bolts 202. When the side of the raw material contacts the side positioning block 203, the raw material falls into the support positioning groove 204 of the forming mold 201. Then the punch head 107 presses down and presses the raw material into the forming groove 205 to complete the bending. The clearance groove 206 is used to push the finished product along the forming groove 205 and discharge it from the end through the material feeding plate 304.

[0031] In this embodiment: the unloading device includes a reciprocating assembly, on which a material-pushing plate 304 is provided; the reciprocating assembly includes two symmetrically arranged linear guide rails 301, a linear motor 302 is installed under the linear guide rails 301, and a translation frame 303 is installed between the linear motors 302; the material-pushing plate 304 is located in the middle of the translation frame 303 and is perpendicular to the translation frame 303; the linear motor 302 drives the material-pushing plate 304 to move along the linear guide rails 301 through the translation frame 303, the material-pushing plate 304 moves from the overrun groove 103 at the bottom of the workbench 101 into the clearance groove 206, and moves along the clearance groove 206, pushing the finished product to move along the forming groove 205 and be discharged from the end, and then the linear motor 302 drives the material-pushing plate 304 to move in the opposite direction and reset along the linear guide rails 301 through the translation frame 303.

[0032] Working principle: First, the forming mold 201 is fixed in the mounting groove 102 of the worktable 101 using countersunk bolts 202. Then, the raw material is placed flat on the preparation platform 108 and pushed flat until the end of the raw material is close to the end positioning block 104, until the side of the raw material contacts the side positioning block 203. At this time, the raw material falls into the support positioning groove 204 of the forming mold 201. The second piece of raw material is placed flat on the preparation platform 108 for preparation. Then, the fixing frame 105 supports the extension of the telescopic cylinder 106 to push the punch head 107 down, pressing the raw material into the forming groove. Within 205, the bending is completed. Then, the telescopic cylinder 106 retracts, driving the stamping head 107 to reset. The linear motor 302 drives the material feeding plate 304 to move along the linear guide rail 301 via the translation frame 303. The material feeding plate 304 moves from the overrun groove 103 at the bottom of the worktable 101 into the clearance groove 206 and moves along the clearance groove 206, pushing the finished product to move along the forming groove 205 and be discharged from the end. Then, the linear motor 302 drives the material feeding plate 304 to move in the opposite direction along the linear guide rail 301 to reset, completing one bending cycle.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending machine for producing insulating crossarm fittings, comprising a main unit for supporting and fixing and providing bending force, characterized in that: It also includes a forming device installed on the main unit for positioning and supporting the raw material for forming, one end of the forming device penetrating the main unit, and a discharge device for reciprocatingly moving and pushing the raw material is installed below the main unit. The main unit includes a workbench (101), a preparation platform (108) is provided on the workbench (101), an installation slot (102) is provided behind the preparation platform (108), an end positioning block (104) is provided at one end of the installation slot (102), an overtravel slot (103) is provided at the bottom of the workbench (101) near the end positioning block (104), and a pressing component for pressing and bending is provided behind the workbench (101). The molding device includes a molding mold (201), which is a two-part mold with a through groove (206) at the bottom. A side positioning block (203) is provided on the molding mold (201), and the two sides of the molding mold (201) are fixed in the mounting groove (102) by a number of countersunk bolts (202). The unloading device includes a reciprocating assembly, on which a material feeding plate (304) is provided.

2. The bending machine for producing insulating crossarm fittings according to claim 1, characterized in that: The pressing assembly includes a fixed frame (105) fixedly connected to the worktable (101). Two telescopic cylinders (106) are symmetrically mounted on the top of the fixed frame (105), and a punch head (107) is installed between the telescopic ends of the telescopic cylinders (106).

3. A bending machine for producing insulating crossarm fittings according to claim 2, characterized in that: The end of the mounting groove (102) away from the end positioning block (104) penetrates the worktable (101).

4. A bending machine for producing insulating crossarm fittings according to claim 1, characterized in that: The forming mold (201) is provided with a support positioning groove (204), and a forming groove (205) is provided below the support positioning groove (204).

5. A bending machine for producing insulating crossarm fittings according to claim 4, characterized in that: The upper surface of the molding die (201) is not higher than the surface of the preparatory platform (108).

6. A bending machine for producing insulating crossarm fittings according to claim 1, characterized in that: The reciprocating assembly includes two symmetrically arranged linear guides (301), a linear motor (302) is mounted under the linear guides (301), and a translation frame (303) is mounted between the linear motors (302).

7. A bending machine for producing insulating crossarm fittings according to claim 6, characterized in that: The material feeding plate (304) is located in the middle of the translation frame (303) and is perpendicular to the translation frame (303).