Punching and bending workpiece testing fixture

Abstract

The utility model belongs to the technical field of testing fixture, concretely relates to a punching and bending workpiece testing fixture, including base, the top of base is fixedly connected with fixed base, the side wall top of fixed base is fixedly connected with first detection block, the side wall of first detection block is fixedly connected with second detection block, the side wall of first detection block's side to fixed base is connected with a plurality of detection pin of horizontal sliding, the top of fixed base is provided with first roof column perpendicularly, the bottom of first roof column is fixedly connected with first roof terrace, the top of second detection block is provided with second roof column perpendicularly. The utility model has the advantages that by being provided with first roof terrace, second roof terrace and jacking cylinder, can after workpiece detection is finished workpiece is automatically jacked up, makes the bending part of workpiece separate from first detection block and second detection block, is convenient for taking down workpiece, avoids workpiece bending angle to change under the action of external force when taking material.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, specifically to an inspection tool for punched and bent workpieces. Background Technology

[0002] Punching and bending are core technologies in the metal processing field. Through the synergistic action of punching and bending processes, sheet metal can be precisely transformed from a planar surface into a complex three-dimensional structure. This technology is widely used in automotive manufacturing, aerospace, architectural decoration, and electronic equipment, becoming an indispensable processing method in modern industrial production. The punching process, through the cooperation of a punch press and a die, creates holes in metal sheets to meet structural connection, ventilation, heat dissipation, or decorative needs. Its core lies in the precision of the die design; the punching pressure must be adjusted according to the material thickness, hole diameter, and distribution density to avoid hole edge collapse or cracking. The bending process, on the other hand, uses a press to bend the sheet metal into specific angles or shapes. The key to this process is controlling the springback and bending radius.

[0003] After punching and bending, the workpiece needs to be inspected for hole positions and bending angles using a fixture to ensure workpiece yield. However, most existing fixtures require manual inspection of the workpiece by hand. After inspection, the bent part is usually in contact with the inspection area. When the workpiece is removed manually, the bending angle can easily change, affecting the workpiece's accuracy. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing inspection tools can easily affect the bending accuracy of workpieces during material handling.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A punching and bending workpiece inspection fixture includes a base, a fixed seat fixedly connected to the top of the base, a first detection block fixedly connected to the top of the side wall of the fixed seat, a second detection block fixedly connected to the side wall of the first detection block, a plurality of detection pins slidably connected to the side wall of the first detection block facing the fixed seat, a first top column vertically arranged on the top of the fixed seat, a first top platform fixedly connected to the bottom of the first top column, a second top column vertically arranged on the top of the second detection block, a second top platform fixedly connected to the bottom of the second top column, both the first top platform and the second top platform being slidably connected to the fixed seat, a fixed plate vertically fixedly connected to the bottom of the base, a lifting cylinder vertically fixedly connected to the side wall of the fixed plate facing the fixed seat, a lifting plate horizontally fixedly connected to the piston rod of the lifting cylinder, and a top rod vertically fixedly connected between the bottom of the first top platform and the second top platform and the top of the lifting plate.

[0007] Furthermore, a detection cylinder is horizontally fixedly connected to the top of the base on the side away from the fixed seat, and the piston rod of the detection cylinder is fixedly connected to a sliding seat.

[0008] Furthermore, a support plate is horizontally fixedly connected to the side wall of the sliding seat facing the first detection block, and a movable block is fixedly connected to the end of the detection pin away from the first detection block. The bottom of the movable block is slidably connected to the support plate.

[0009] Furthermore, a spring is connected between the movable block and the side wall of the sliding seat.

[0010] Furthermore, a rotary pressing cylinder is vertically fixed to the side wall of the fixed plate away from the lifting cylinder, and a pressure block is fixedly connected to the piston rod of the rotary pressing cylinder.

[0011] Furthermore, the bottom of the pressure block is made of an elastic material.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The present invention provides a punching and bending workpiece inspection fixture, which, by providing a first top platform, a second top platform and a lifting cylinder, can automatically lift the workpiece after the workpiece inspection is completed, so that the bent part of the workpiece is separated from the first inspection block and the second inspection block, making it easier to remove the workpiece and preventing the bending angle of the workpiece from changing under the action of external force during material removal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall assembly structure of a punching and bending workpiece inspection fixture according to the present invention.

[0015] Figure 2 This is a schematic diagram of the first and second top platforms of a punching and bending workpiece inspection fixture according to the present invention.

[0016] Figure 3 This is a top view schematic diagram of a punching and bending workpiece inspection fixture according to the present invention.

[0017] Figure 4 This is a cross-sectional view of the first top platform of a punching and bending workpiece inspection fixture according to the present invention.

[0018] In the diagram: 1. Base; 2. Fixed seat; 3. First detection block; 4. Second detection block; 5. First top column; 6. Second top column; 7. Detection pin; 8. Fixed plate; 9. Rotary pressing cylinder; 10. First top platform; 11. Second top platform; 12. Lifting plate; 13. Lifting cylinder; 14. Pressing block; 15. Sliding seat; 16. Detection cylinder; 17. Movable block; 18. Spring; 19. Support plate. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 The punching and bending workpiece inspection fixture of this embodiment includes a base 1, a fixed seat 2 fixedly connected to the top of the base 1, a first detection block 3 fixedly connected to the top of the side wall of the fixed seat 2, a second detection block 4 fixedly connected to the side wall of the first detection block 3, and a plurality of detection pins 7 horizontally slidably connected to the side wall of the first detection block 3 facing the fixed seat 2. A first top post 5 is vertically arranged on the top of the fixed seat 2, and a first top platform 10 is fixedly connected to the bottom of the first top post 5. A second top post 6 is vertically arranged on the top of the second detection block 4, and a second top platform 10 is fixedly connected to the bottom of the second top post 6. 1. The first top platform 10 and the second top platform 11 are both slidably connected to the fixed base 2. The bottom of the base 1 is vertically fixedly connected to the fixed plate 8. The side wall of the fixed plate 8 facing the fixed base 2 is vertically fixedly connected to the lifting cylinder 13. The piston rod of the lifting cylinder 13 is horizontally fixedly connected to the lifting plate 12. The bottom of the first top platform 10 and the second top platform 11 and the top of the lifting plate 12 are vertically fixedly connected to the top rod. The side wall of the fixed plate 8 away from the lifting cylinder 13 is vertically fixedly connected to the rotating pressing cylinder 9. The piston rod of the rotating pressing cylinder 9 is fixedly connected to the pressure block 14. During inspection, the workpiece is placed on top of the fixed base 2, with the punching holes at the bottom of the workpiece fitting over the outside of the first top post 5 and the second top post 6, thus limiting the workpiece and simultaneously inspecting the hole positions at the bottom. At this time, it is observed whether the bent part of the workpiece is in contact with the first detection block 3 and the second detection block 4, thus inspecting the bending angle of the workpiece. Then, by rotating the pressing cylinder 9, the pressing block 14 is driven to move downwards and rotate to the top of the workpiece until the bottom of the pressing block 14 abuts against the top of the workpiece, thus limiting the workpiece in the vertical direction. Then, the detection pin 7 is inserted into the first detection block 3 to detect the hole position on the side wall of the workpiece. The pressure block 14 can prevent the workpiece from shaking during the detection, thus improving the detection accuracy. After the detection is completed, the detection pin 7 and the pressure block 14 are reset. Then, the lifting cylinder 13 drives the lifting plate 12 to move upward, thereby driving the first top platform 10 and the second top platform 11 to move upward, so that the workpiece is separated from the fixed seat 2, the first detection block 3 and the second detection block 4, making it easier to remove the workpiece and avoiding the change of the bending angle of the workpiece caused by applying pressure to the workpiece when manually picking it up.

[0021] A detection cylinder 16 is horizontally fixedly connected to the top of the base 1 on the side away from the fixed seat 2. The piston rod of the detection cylinder 16 is fixedly connected to a sliding seat 15. A support plate 19 is horizontally fixedly connected to the side wall of the sliding seat 15 facing the first detection block 3. A movable block 17 is fixedly connected to the end of the detection pin 7 away from the first detection block 3. The bottom of the movable block 17 is slidably connected to the support plate 19. A spring 18 is connected between the movable block 17 and the side wall of the sliding seat 15. During detection, the detection pin 7 is driven by the detection cylinder 16 to move the sliding seat 15 and the support plate 19 toward the fixed seat 2, so that the sliding seat 15 and the detection pin 7 move accordingly until the detection pin 7 passes through the first detection block 3 and inserts into the punch hole in the side wall of the workpiece to detect the hole position of the side wall of the workpiece. By setting the spring 18, it is possible to avoid the detection pin 7 from making hard contact with the workpiece and causing damage to the workpiece.

[0022] The bottom of the pressure block 14 is made of rubber.

[0023] Working principle: During inspection, the workpiece is placed on top of the fixed base 2, with the punching holes at the bottom of the workpiece respectively fitted onto the outside of the first top post 5 and the second top post 6, thereby limiting the workpiece and simultaneously detecting the hole positions at its bottom. At this time, it is observed whether the bent part of the workpiece is in contact with the first detection block 3 and the second detection block 4, thereby detecting the bending angle of the workpiece. Then, by rotating the pressing cylinder 9, the pressure block 14 is driven downwards and rotated to the top of the workpiece until the bottom of the pressure block 14 abuts against the top of the workpiece, thereby limiting the workpiece vertically. Then, the detection pin 7 is inserted into the first detection block 3 to detect the hole positions on the side wall of the workpiece. The pressure block 14 prevents the workpiece from shaking during inspection, improving inspection accuracy. The detection pin 7... During testing, the sliding seat 15 and the support plate 19 are driven by the testing cylinder 16 to move towards the fixed seat 2, causing the sliding seat 15 and the testing pin 7 to move accordingly until the testing pin 7 passes through the first testing block 3 and inserts into the punching hole on the side wall of the workpiece to test the hole position on the side wall of the workpiece. By providing a spring 18, it is possible to avoid hard contact between the testing pin 7 and the workpiece, which could cause damage to the workpiece. After the test is completed, the testing pin 7 and the pressure block 14 are reset, and then the lifting cylinder 13 drives the lifting plate 12 to move upward, thereby driving the first top platform 10 and the second top platform 11 to move upward, so that the workpiece is separated from the fixed seat 2, the first testing block 3 and the second testing block 4, making it easier to remove the workpiece and avoiding the change of the bending angle of the workpiece caused by applying pressure to the workpiece when manually picking it up.

[0024] 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 workpiece inspection tool for punching and bending, characterized in that: Includes a base (1), a fixed seat (2) is fixedly connected to the top of the base (1), a first detection block (3) is fixedly connected to the top of the side wall of the fixed seat (2), a second detection block (4) is fixedly connected to the side wall of the first detection block (3), a plurality of detection pins (7) are horizontally slidably connected to the side wall of the first detection block (3) facing the fixed seat (2), a first top post (5) is vertically arranged on the top of the fixed seat (2), a first top platform (10) is fixedly connected to the bottom of the first top post (5), and a second top post (4) is vertically arranged on the top of the second detection block (4). 6) The bottom of the second top column (6) is fixedly connected to the second top platform (11). The first top platform (10) and the second top platform (11) are both slidably connected to the fixed seat (2). The bottom of the base (1) is vertically fixedly connected to the fixed plate (8). The side wall of the fixed plate (8) facing the fixed seat (2) is vertically fixedly connected to the lifting cylinder (13). The piston rod of the lifting cylinder (13) is horizontally fixedly connected to the lifting plate (12). The bottom of the first top platform (10) and the second top platform (11) are vertically fixedly connected to the top of the lifting plate (12).

2. The punching and bending workpiece inspection fixture according to claim 1, characterized in that: A detection cylinder (16) is horizontally fixedly connected to the top of the base (1) on the side away from the fixed seat (2), and the piston rod of the detection cylinder (16) is fixedly connected to a sliding seat (15).

3. The punching and bending workpiece inspection fixture according to claim 2, characterized in that: The sliding seat (15) is horizontally fixedly connected to a support plate (19) on one side wall facing the first detection block (3), and the detection pin (7) is fixedly connected to a movable block (17) at one end away from the first detection block (3). The bottom of the movable block (17) is slidably connected to the support plate (19).

4. The punching and bending workpiece inspection fixture according to claim 3, characterized in that: A spring (18) is connected between the movable block (17) and the side wall of the sliding seat (15).

5. A punching and bending workpiece inspection fixture according to claim 1, characterized in that: A rotary pressing cylinder (9) is vertically fixed to the side wall of the fixed plate (8) away from the lifting cylinder (13), and a pressure block (14) is fixedly connected to the piston rod of the rotary pressing cylinder (9).

6. A punching and bending workpiece inspection fixture according to claim 5, characterized in that: The bottom of the pressure block (14) is made of an elastic material.

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