Steel bar bending clamp

Abstract

The utility model discloses a steel bar bending clamp which comprises a base, an extrusion mechanism, positioning mechanisms and an abutting block, the abutting block, the extrusion mechanism and the positioning mechanisms are all arranged on the base, the extrusion mechanism is arranged on the opposite side of the abutting block, the positioning mechanisms are arranged on the left side and the right side of the abutting block, and the positioning mechanisms are used for positioning a steel bar. The extruding mechanism is matched with the abutting block to extrude and bend the steel bar; an abutting surface is arranged on the abutting block, the abutting surface is of an arc-shaped curved surface structure, and the extrusion mechanism is matched with the abutting surface; a group of fixing holes are formed in the abutting block, and the abutting block and the base are fixed through bolts; an abutting block is arranged on the base, an extrusion mechanism is arranged on the opposite side of the abutting block, meanwhile, positioning assemblies are arranged on the left side and the right side of the abutting block, the positioning assemblies can slide downwards to be matched with the extrusion mechanism in the initial positioning and extrusion bending process of the steel bars through the positioning assemblies, and therefore the parts, outside the bending area, of the steel bars are prevented from deforming; the clamp is simple in structure, low in production cost and high in machining efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of steel bar machining technology, specifically relating to a steel bar bending fixture. Background Technology

[0002] Steel bars are commonly used metal blanks and are used in the processing of many mechanical parts. Some special mechanical parts require steel bars to be bent and extruded into U-shaped structures. During the extrusion process, the steel bars need to be positioned first, and sufficient movement allowance needs to be ensured to prevent deformation outside the extrusion area. Existing bending fixtures can only manually adjust and fix the steel bars before extrusion. However, large-angle bending of steel bars can easily cause injury. Therefore, a positioning device is needed to initially fix the steel bars, and the fixing device needs to move in coordination with the extrusion equipment to prevent deformation outside the extrusion area. Utility Model Content

[0003] The purpose of this utility model is to provide a steel bar bending fixture, which has an abutment block on the base and a pressing mechanism on the opposite side of the abutment block. At the same time, positioning components are provided on both the left and right sides of the abutment block. The positioning components are used to initially position the steel bar. During the pressing and bending process, the positioning components can slide downward to match the pressing mechanism to prevent deformation of the part of the steel bar outside the bending area.

[0004] This utility model is achieved through the following technical solution:

[0005] A steel bar bending fixture includes a base, a pressing mechanism, a positioning mechanism, and an abutment block. The abutment block, pressing mechanism, and positioning mechanism are all mounted on the base. The pressing mechanism is located on the opposite side of the abutment block, and the positioning mechanisms are located on the left and right sides of the abutment block. The positioning mechanisms are used to position the steel bar. The pressing mechanism cooperates with the abutment block to press and bend the steel bar. The abutment block has an abutment surface with an arc-shaped curved surface structure, and the pressing mechanism cooperates with the abutment surface. The abutment block has a set of fixing holes, and the abutment block is fixed to the base by bolts.

[0006] Furthermore, the base is provided with a mounting groove, and the abutment block is disposed in the mounting groove.

[0007] Furthermore, the extrusion mechanism includes an electro-hydraulic push rod, an extrusion head, and a fixing member. The extrusion head is connected to the electro-hydraulic push rod and mates with the abutment surface. The fixing member is connected to the base and fixes the electro-hydraulic push rod on the base.

[0008] Furthermore, a stop is provided on the base, and the stop abuts against the tail of the electro-hydraulic actuator.

[0009] Furthermore, the positioning mechanism includes two sets of positioning components, which are respectively disposed on the left and right sides of the abutment block. Each positioning component includes a fixed block and a sliding block. The fixed block and the sliding block are disposed opposite to each other. The fixed block is connected to the base and disposed near the electro-hydraulic push rod. The sliding block is slidably connected to the base and disposed near the abutment block.

[0010] Furthermore, the base is provided with a sliding groove, the sliding block is disposed in the sliding groove, and a spring is disposed in the sliding groove. The spring is connected to the sliding block and one side wall of the sliding groove, and the spring is used to reset the sliding block.

[0011] Furthermore, the end of the sliding block is provided with a guide surface, which is a curved surface structure.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] In this invention, an abutment block is provided on the base, and a pressing mechanism is provided on the opposite side of the abutment block. At the same time, positioning components are provided on both the left and right sides of the abutment block. The positioning components are used to initially position the steel strip. During the pressing and bending process, the positioning components can slide downward to match the pressing mechanism to prevent deformation of the part of the steel strip outside the bending area. The fixture structure is simple, the production cost is low, and the processing efficiency is high. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the steel bar bending fixture of this utility model.

[0016] Figure 2 This is a schematic diagram of the sliding block structure in the steel bar bending fixture of this utility model.

[0017] Wherein: 1-base, 11-slide groove, 2-abutting block, 21-abutting surface, 3-electro-hydraulic push rod, 4-pressing head, 5-fixing component, 6-stop block, 7-fixing block, 8-sliding block, 81-insertion part. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] Example 1:

[0020] A steel bar bending fixture, such as Figure 1 As shown, the assembly includes a base 1, a pressing mechanism, a positioning mechanism, and abutment block 2. The abutment block 2, pressing mechanism, and positioning mechanism are all mounted on the base 1. The abutment block 2 is a rectangular structure with an abutment surface 21, which is an arc-shaped curved surface. The pressing mechanism cooperates with the abutment surface 21 and is located on the opposite side of the abutment block 2. The pressing mechanism and the abutment block 2 cooperate to press the steel strip, bending it into a U-shaped structure. The positioning mechanism is located on the left and right sides of the abutment block 2 and is used to position the steel strip, initially fixing it in place. The abutment block 2 has a set of fixing holes, and it is fixed to the base 1 with bolts. The bolts pass through the fixing holes and are threadedly connected to the base 1. The base 1 has an installation groove, and the abutment block 2 is placed in the installation groove, causing the abutment to protrude from the surface of the base 1. The installation groove has threaded holes, making the abutment more stable on the base 1.

[0021] Example 2:

[0022] This embodiment, based on the above embodiment, further defines the extrusion mechanism, which includes an electro-hydraulic push rod 3, an extrusion head 4, and a fixing member 5. The extrusion head 4 is connected to the end of the electro-hydraulic push rod 3, and the end of the extrusion head 4 has a curved structure that mates with the abutment surface 21 of the abutment block 2. The fixing member 5 is fixed to the base 1 on both sides by screws, and the fixing member 5 is set on the electro-hydraulic push rod 3 to fix the electro-hydraulic push rod 3 to the base 1. At the same time, a stop block 6 is provided on the base 1, which abuts against the tail of the electro-hydraulic push rod 3 to prevent the electro-hydraulic push rod 3 from being pushed and displaced by the reaction force of the extruded steel strip. The length of the steel strip is usually the same as or slightly longer than the distance between the two fixing blocks 7 to avoid the steel strip being blocked by the fixing blocks when deforming, which would cause deformation at both ends of the steel strip. The other parts of this embodiment are the same as those in the above embodiment, and will not be described again here.

[0023] Example 3:

[0024] This embodiment further defines the positioning mechanism based on the above embodiments, such as... Figure 1 and Figure 2As shown, the positioning mechanism includes two sets of positioning components, which are respectively arranged on the left and right sides of the abutment block 2. Each positioning component includes a fixed block 7 and a sliding block 8. The fixed block 7 and sliding block 8 are arranged opposite each other, and a steel strip is arranged between the fixed block 7 and sliding block 8. The fixed block 7 is connected to the base 1 and is located near the electro-hydraulic actuator 3. The fixed block 7 is welded to the base 1. The sliding block 8 is slidably connected to the base 1 and is located near the abutment block 2. The sliding block 8 can slide back and forth towards the abutment block 2. The base 1 is provided with a sliding groove 11, and the sliding block 8 is arranged in the sliding groove 11. A plug-in part 81 is provided below the sliding block 8. The plug-in part 81 is plugged into and slidably connected to the sliding groove 11, and the sliding groove 11 limits the movement of the plug-in part 81. To prevent the sliding block 8 from dislodging from the groove 11, a spring is installed inside the groove 11. The spring is connected to the insertion part 81 at the bottom of the sliding block 8 and one side wall of the groove 11, respectively. The spring is used to reset the sliding block 8. A guide surface is provided at the end of the sliding block 8. The guide surface has a curved structure to reduce the friction between the steel strip and the sliding block 8 during the extrusion process. When extruding and bending the steel strip, the steel strip is first placed between the sliding block 8 and the fixed block 7. The electro-hydraulic push rod 3 is activated. The electro-hydraulic push rod 3 drives the extrusion head 4 to extrude the steel strip downward. The sliding plate follows and slides down. When the steel strip contacts the abutment block 2, it undergoes initial deformation. The end of the steel strip gradually moves out from between the sliding block 8 and the fixed block 7, and finally the bending and shaping are completed. The sliding block 8 is reset under the action of the spring. The other parts of this embodiment are the same as those in the above embodiment, and will not be repeated here.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A steel bar bending fixture, characterized by, The utility model provides a steel bar bending device, including base, extrusion mechanism, positioning mechanism and abutment block, abut block, extrusion mechanism and positioning mechanism all are arranged on the base, extrusion mechanism sets up at the opposite side of abutment block, positioning mechanism sets up at the left and right sides of abutment block, and positioning mechanism is used for positioning steel bar, extrusion mechanism and abutment block cooperate and press the bending of steel bar, abutment block is provided with abutment surface, and abutment surface is arc curved surface structure, and extrusion mechanism cooperates with abutment surface, abutment block is provided with a group of fixed holes, and abutment block is fixed with base through bolt.

2. The steel bar bending fixture of claim 1, wherein The base is provided with a mounting groove, and the abutment block is arranged in the mounting groove.

3. The steel bar bending fixture of claim 1, wherein The extrusion mechanism comprises an electro-hydraulic push rod, an extrusion head and a fixing member, the extrusion head is connected with the electro-hydraulic push rod, the extrusion head cooperates with the abutment surface, and the fixing member is connected with the base and fixes the electro-hydraulic push rod on the base.

4. The steel bar bending fixture of claim 3, wherein The base is provided with a stop block, and the stop block abuts against the tail of the electro-hydraulic push rod.

5. The steel bar bending fixture of claim 3, wherein The positioning mechanism comprises two groups of positioning assemblies, the positioning assemblies are arranged on the left and right sides of the abutment block respectively, the positioning assembly comprises a fixed block and a sliding block, the fixed block and the sliding block are oppositely arranged, the fixed block is connected with the base and is arranged close to one side of the electro-hydraulic push rod, and the sliding block is slidingly connected with the base and is arranged close to the abutment block.

6. The steel bar bending fixture of claim 5, wherein The base is provided with a sliding groove, the sliding block is arranged in the sliding groove, a spring is arranged in the sliding groove, the spring is connected with the sliding block and the end side wall of the sliding groove respectively, and the spring is used for resetting the sliding block.

7. The steel bar bending fixture of claim 5, wherein The sliding block is provided with a guide surface at the end, and the guide surface is a curved surface structure.

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