CN-121972540-A - Limiting tool for bending machine and operation method thereof

CN121972540ACN 121972540 ACN121972540 ACN 121972540ACN-121972540-A

Abstract

The invention discloses a limiting tool for a bending machine and an operation method thereof, wherein the limiting tool is arranged on a bending machine workbench and comprises a limiting block, an adjusting mechanism and a base, the base is fixedly arranged on the bending machine workbench, the limiting block is movably arranged on the base, the adjusting mechanism is arranged between the base and the limiting block, the front end of the base is provided with a V-shaped iron, the bottom of the V-shaped iron is fixedly arranged on the bending machine workbench, the top of the V-shaped iron is provided with a pre-bending groove, a bending cutter is arranged above the pre-bending groove, and the bending cutter is arranged on a cutter clamping mechanism. The operation method comprises the following steps of S1, installing a base, S2, adjusting and setting, and S3, bending operation. The invention can reduce the effective minimum limiting distance of the bending machine, meets the precision process requirement on bending small parts or edges of the parts, solves the capability bottleneck problem of original equipment, and enhances the practicability. The invention can avoid frequent supporting and positioning operations of the hands of the operator in dangerous areas, and ensures personnel safety.

Inventors

ZHAO LEI
CHEN CHAO
JIN LANG
YANG GANG
CAI FEI
LI HUAYUAN
YANG ZAIWEN

Assignees

贵州航天风华精密设备有限公司

Dates

Publication Date: 20260505
Application Date: 20260209

Claims (10)

1. A limiting tool for a bending machine is arranged on a bending machine workbench (1) and is characterized by comprising a limiting block (3), an adjusting mechanism and a base (11), wherein the base (11) is fixedly arranged on the bending machine workbench (1), the limiting block (3) is movably arranged on the base (11), the adjusting mechanism is arranged between the base (11) and the limiting block (3), a V-shaped iron (2) is arranged at the front end of the base (11), the bottom of the V-shaped iron (2) is fixedly arranged on the bending machine workbench (1), a pre-bending groove (14) is formed in the top of the V-shaped iron (2), a bending cutter (4) is arranged above the pre-bending groove (14), and the bending cutter (4) is arranged on a cutter clamping mechanism.
2. The limiting tool for the bending machine according to claim 1, wherein a mounting groove (15) for being matched with a table edge of the bending machine workbench (1) is formed in the bottom of the base (11), a threaded hole (16) is formed in the bottom of the mounting groove (15), and the base (11) is fastened to the bending machine workbench (1) by penetrating the threaded hole (16) through a first hexagon socket head cap bolt (12).
3. The limiting tool for the bending machine according to claim 1, wherein the adjusting mechanism comprises a third inner hexagon bolt (9) and a guiding structure, the third inner hexagon bolt (9) is horizontally arranged, one end of the third inner hexagon bolt is in threaded connection with the limiting block (3), and the guiding structure is arranged between the limiting block (3) and the base (11).
4. The limiting tool for the bending machine according to claim 3, wherein the guide structure comprises a guide groove (17) formed in the top surface of the base (11), and a protrusion (18) arranged at the bottom of the limiting block (3) and matched with the guide groove (17).
5. The limiting tool for the bending machine according to claim 4, wherein the guide groove (17) comprises a T-shaped groove or a dovetail groove, and the structure of the protrusion (18) is matched with the structure of the guide groove (17).
6. The limiting tool for the bending machine according to claim 1, wherein the limiting block (3) is of a right-angle block structure, a limiting surface (21) for positioning a workpiece is formed on the inner side of the limiting block (3), and graduation lines (13) for indicating the moving distance are engraved on the limiting block (3).
7. According to The spacing frock for bender of claim 1, wherein the pre-bending groove (14) includes a plurality of different size strip V-shaped groove structures.
8. The limiting tool for the bending machine according to claim 1, wherein the tool clamping mechanism comprises a first tool clamping block (5) and a second tool clamping block (7), the first tool clamping block (5) and the second tool clamping block (7) are connected through a second inner hexagon bolt (6), the second tool clamping block (7) is of an L-shaped structure, the bending tool (4) is of a T-shaped structure at the top end, the first tool clamping block (5) is provided with a mounting groove, and the mounting groove is matched with the mounting groove through the L-shaped structure to form a groove structure (19) matched with the bending tool (4) of which the top end is of the T-shaped structure.
9. The limiting tool for the bending machine according to claim 1, further comprising a support plate (10) and limiting wheels (8), wherein the support plate (10) is arranged on the bending machine, a wheel groove is formed in the front end of the support plate (10), the limiting wheels (8) are arranged in the wheel groove, a rotating shaft of the limiting wheels (8) is fixedly connected to the support plate (10) through a support rod (20), and the limiting wheels (8) are arranged above the edge of the pre-bending groove (14).
10. The method of operating a spacing fixture for a bending machine according to any one of claims 1-9, comprising the steps of: s1, mounting a base, namely clamping the base (11) into the table edge of a bending machine workbench (1) through a mounting groove (15) at the bottom, adjusting to a proper mounting position, then screwing a first inner hexagonal bolt (12) by using an inner hexagonal wrench, fastening the base (11), and then mounting a limiting block (3) and an adjusting mechanism; S2, adjusting and setting, namely rotating a third inner hexagon bolt (9) by using an inner hexagon wrench, enabling the limiting block (3) to move forwards or backwards to a proper position, then adjusting the limiting surface (21) to a required distance by observing scale marks (13) marked on the limiting block (3), and locking the third inner hexagon bolt (9) in the adjusting mechanism after adjustment is finished so as to prevent loosening; s3, bending, namely tightly leaning the edge of the workpiece on a limiting surface (21) of the limiting block (3), and pressing down a bending cutter (4) to finish the bending operation of the workpiece.

Description

Limiting tool for bending machine and operation method thereof Technical Field The invention belongs to the technical field of bending processing, and particularly relates to a limiting tool for a bending machine and an operation method thereof. Background Bending is used as one of key working procedures of sheet metal forming, and the precision and efficiency of the bending directly influence the final quality and production cost of a product. In the actual production process, the process requirement of processing small parts or bending small parts in the edge area of large parts is often met. The core difficulty of such processing is that the workpiece edge must be precisely positioned a very small distance (typically less than 10 mm) from the lower die edge of the bending machine. At present, a mechanical limiting device such as a limiting screw rod and a limiting block matched structure is commonly adopted in a conventional bending machine. However, limited by the structural design of the device itself, such original-set limit devices present a minimum limit distance (e.g., 8.2mm as mentioned in this application). When the limit distance required by the process is smaller than the limit value, the original limit device cannot be used. The operator therefore has to forego the assistance of limiting, and instead relies entirely on manual measurement, visual positioning and manual support of the workpiece for bending. The original operation mode has a plurality of defects that firstly, the positioning accuracy is completely dependent on the experience and the proficiency of an operator, the bending position is very easy to be out of tolerance due to artificial deviation, the product is reworked and even scrapped, and the production quality and the cost control are seriously influenced. Secondly, each part needs to be repeatedly measured and positioned, and the production efficiency is extremely low. Furthermore, the hands of the operator need to be supported and positioned near the bending cutter, so that extremely high potential safety hazards exist, and serious mechanical injury accidents are easily caused. Disclosure of Invention The invention aims to provide a limiting tool for a bending machine and an operation method thereof, aiming at the technical problems recorded in the background technology. The technical scheme of the invention is as follows: A spacing frock for bender installs on the bender workstation, including stopper, adjustment mechanism and base, base fixed mounting is on the bender workstation, and the stopper activity sets up on the base, and adjustment mechanism sets up between base and stopper, and the base front end disposes V-arrangement iron, and V-arrangement iron bottom fixed mounting is on the bender workstation, and the preflex groove has been seted up at the top, and the preflex groove top disposes the cutter of bending, and the cutter of bending is installed on cutter fixture. The base bottom is equipped with the mounting groove that is used for with the bench limit looks adaptation of bender workstation, and the tank bottom of mounting groove is equipped with the screw hole to run through the screw hole through first hexagon socket head cap screw in order to fasten the base on the bender workstation. The adjusting mechanism comprises a third inner hexagon bolt and a guiding structure, wherein the third inner hexagon bolt is horizontally arranged, one end of the third inner hexagon bolt is in threaded connection with the limiting block, and the guiding structure is arranged between the limiting block and the base. The guide structure comprises a guide groove formed in the top surface of the base, and a protrusion arranged at the bottom of the limiting block and matched with the guide groove. The guide groove comprises a T-shaped groove or a dovetail groove, and the protruding structure is matched with the structure of the guide groove. The limiting block is of a right-angle block structure, a limiting surface for positioning the workpiece is formed on the inner side of the limiting block, and scale marks for indicating the moving distance are engraved on the limiting block. The pre-bending groove comprises a plurality of strip-shaped V-shaped groove structures with different sizes. The cutter fixture comprises a first cutter clamping block and a second cutter clamping block, wherein the first cutter clamping block is connected with the second cutter clamping block through a second inner hexagon bolt, the second cutter clamping block is of an L-shaped structure, a bending cutter is of a T-shaped structure at the top end, the first cutter clamping block is provided with a mounting groove, and the mounting groove is matched with the first cutter clamping block through the L-shaped structure to form a groove structure matched with the bending cutter of the T-shaped structure at the top end. Still include extension board and spacing wheel, the extension board is installed on the