A detection tool for metal fitting production

By designing a clamping and guiding mechanism, the problem of metal parts shifting on the conveyor belt was solved, achieving precise fixing of metal parts and accurate detection.

CN224575489UActive Publication Date: 2026-07-31QINGDAO HUICHENG IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HUICHENG IND CO LTD
Filing Date
2025-09-03
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The conveyor belt of the existing metal parts production inspection fixture is prone to deviation when moving the metal parts, making it impossible to effectively and accurately detect the quality of the metal parts.

Method used

The system employs a clamping mechanism and a guiding mechanism. A cylinder drives a limit block and a push block to move the gripper assembly and guide plate, ensuring that the metal parts are accurately displaced and fixed on the conveyor belt, thus avoiding displacement interference during the inspection process.

Benefits of technology

It achieves precise fixation of metal parts during the inspection process, reduces human error, and ensures the accuracy and reliability of the inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of testing device technology, and discloses a testing fixture for the production of metal parts, including a carrier: a support plate is fixedly connected to the top of the carrier, a hollow block is fixedly connected to the top of the support plate, a clamping mechanism is fixedly connected to the top of the hollow block, a conveying mechanism is fixedly connected to the top of the carrier, and a guiding mechanism is fixedly connected to the top of the hollow block; the clamping mechanism includes a cylinder, the top of which is fixedly connected to the top of the hollow block, and two limiting blocks are fixedly connected to the driving end of the cylinder. In this utility model, the limiting blocks drive the driving block to rotate, which in turn drives the clamping block to open and close, and the driving block drives the clamping plate to open and close synchronously, thus fixing the metal parts, thereby avoiding displacement interference and reducing human error during the testing process.
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Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to a testing fixture for the production of metal parts. Background Technology

[0002] Inspection fixtures for metal parts production (also known as "inspection jigs" or "inspection fixtures") are specialized inspection tools designed specifically for the production process of metal parts. Their main function is to quickly and accurately verify key quality indicators such as dimensional accuracy, shape tolerance, positional relationship, and assembly compatibility of metal parts.

[0003] The working principle of the testing fixture used in the production of metal parts is that the workers transport the metal parts to the designated position via a conveyor belt, so that the testing device can detect the quality indicators of the metal parts. When the quality of the metal parts does not meet the standards, the testing device will light up an indicator light to remind the workers that the quality of the metal parts is unqualified.

[0004] In some existing devices, the conveyor belt of some traditional metal parts inspection fixtures causes the metal parts to shift when it moves, resulting in ineffective and inaccurate inspection. Therefore, a new inspection fixture for metal parts production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a testing fixture for the production of metal parts, aiming to improve the problem that some existing testing fixtures for the production of metal parts have the problem that when the conveyor belt moves the metal parts, the metal parts will be displaced, resulting in ineffective testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A testing fixture for the production of metal parts includes a carrier: a support plate is fixedly connected to the top of the carrier, a hollow block is fixedly connected to the top of the support plate, a clamping mechanism is fixedly connected to the top of the hollow block, a conveying mechanism is fixedly connected to the top of the carrier, and a guiding mechanism is fixedly connected to the top of the hollow block. The clamping mechanism includes a cylinder, the top of which is fixedly connected to the inner top of the hollow block. The driving end of the cylinder is fixedly connected to two limiting blocks. Two driving blocks are rotatably connected to the adjacent side of the two limiting blocks. A gripper assembly is rotatably connected to the outside of each of the two driving blocks. A rotating shaft is rotatably connected to the inner top of each of the two gripper assemblies. A rotating block is fixedly connected to the outside of each of the two rotating shafts. As a further description of the above technical solution: The guiding mechanism includes a fixed block, the top of which is fixedly connected to the top side inside the hollow block. A second cylinder is fixedly connected to the front side of the fixed block. A pushing block is fixedly connected to the driving end of the second cylinder. A driving rod is fixedly connected to the bottom end of the pushing block. Two pushing rods are fixedly connected to the bottom end of the driving rod. Guide plates are slidably connected to the outside of the two pushing rods. A connecting shaft is rotatably connected to the front end of the inside of the two guide plates. As a further description of the above technical solution: The conveying mechanism includes multiple support blocks, the bottom ends of which are fixedly connected to the top of the carrier, and a conveyor belt is rotatably connected to one of the adjacent ends of the multiple support blocks. Limiting plates are fixedly connected to one of the adjacent sides of two support blocks. As a further description of the above technical solution: A control mechanism is fixedly connected to the top of the hollow block, and a detection head is fixedly connected to the top of the inner part of the hollow block; As a further description of the above technical solution: Both gripper assemblies include gripping blocks, the interiors of the two gripping blocks are respectively fixedly connected to the exteriors of the two driving blocks, and the bottom ends of the two gripping blocks are fixedly connected to clamping plates. As a further description of the above technical solution: The outer bottom ends of the two connecting shafts are respectively fixedly connected to the inner top ends of the two supporting blocks, and the top ends of the two rotating blocks are fixedly connected to the inner top ends of the hollow block. As a further description of the above technical solution: The bottom ends of the two limiting plates are in contact with the conveyor belt, and the bottom ends of the two guide plates are slidably connected to the outside of the conveyor belt; As a further description of the above technical solution: The top of the pushing block contacts the inner top of the hollow block, and the inner tops of the two gripping blocks are fixedly connected to the outside of the rotating shaft.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the limit block is driven by the cylinder to rotate the driving block, which in turn drives the clamping block to open and close, and the driving block drives the clamping plate to open and close synchronously, thereby fixing the metal parts, thus avoiding displacement interference during the detection process and reducing human error.

[0008] 2. In this utility model, when the cylinder two drive push block slides, the push block drives the drive rod to slide synchronously, and the drive rod pushes the two push rods to slide. When the two push rods slide, they push the two guide plates to rotate, so that the guide plates guide the metal parts on the conveyor belt, so that the metal parts are accurately displaced directly under the gripper, thereby solving the problem of the metal parts being randomly displaced on the conveyor belt. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of a testing fixture for the production of metal parts proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a hollow block for a testing fixture used in the production of metal parts, as proposed in this utility model. Figure 3 This is a schematic diagram of the clamping mechanism of a testing fixture for metal parts production proposed in this utility model. Figure 4 This is a schematic diagram of the structure of a limiting block for a testing fixture used in the production of metal parts, as proposed in this utility model. Figure 5 This is a schematic diagram of the structure of a guide plate for a testing fixture used in the production of metal parts, as proposed in this utility model. Figure 6 This is a schematic diagram of the drive rod of a testing fixture for the production of metal parts proposed in this utility model.

[0010] Legend: 1. Carrier; 2. Support plate; 3. Hollow block; 4. Clamping mechanism; 41. Cylinder 1; 42. Limiting block; 43. Driving block; 44. Gripper assembly; 441. Clamping block; 442. Clamping plate; 45. Rotating shaft; 46. Rotating block; 5. Conveying mechanism; 51. Supporting block; 52. Conveyor belt; 53. Limiting plate; 6. Guiding mechanism; 61. Fixing block; 62. Cylinder 2; 63. Pushing block; 64. Driving rod; 65. Pushing rod; 66. Guide plate; 67. Linking shaft; 7. Control mechanism; 8. Detection head. Detailed Implementation

[0011] 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.

[0012] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a testing fixture for metal parts production, comprising a carrier 1, which is a support frame. A support plate 2 is fixedly connected to the top of the carrier 1, providing support for the support plate 2. A hollow block 3 is fixedly connected to the top of the support plate 2, providing support for the hollow block 3. A clamping mechanism 4 is fixedly connected to the top of the hollow block 3, providing installation space for the clamping mechanism 4. The clamping mechanism 4 includes a cylinder 41, which provides a drive source. The top of the cylinder 41 is fixedly connected to the top of the hollow block 3, providing installation space for the cylinder 41. Two limiting blocks 42 are fixedly connected to the driving end of the cylinder 41, driving the two... The limiting blocks 42 move synchronously. Two driving blocks 43 are rotatably connected to the adjacent side of the two limiting blocks 42. The limiting blocks 42 drive the driving blocks 43 to rotate synchronously. The outside of each of the two driving blocks 43 is rotatably connected to a gripper assembly 44. The movement of the driving blocks 43 rotates the gripper assembly 44, causing the gripper assembly 44 to open. Each of the two gripper assemblies 44 includes a gripping block 441. The gripping block 441 is curved. The inside of the two gripping blocks 441 is fixedly connected to the outside of the two driving blocks 43. The movement of the driving blocks 43 causes the gripping blocks 441 to open or close. The bottom end of each gripping block 441 is fixedly connected to a clamping plate 442. The opening or closing of the gripping blocks 441 causes the clamping plate 442 to open or close synchronously.

[0013] refer to Figure 2 , Figure 3 and Figure 5 The two gripper assemblies 44 are each rotatably connected to a rotating shaft 45 at their inner top ends, providing support for the gripper assemblies 44. The inner top ends of the two gripping blocks 441 are fixedly connected to the outside of the rotating shafts 45, providing support for the gripping blocks 441. Rotating blocks 46 are fixedly connected to the outside of the two rotating shafts 45, providing support for the rotating shafts 45. The top ends of the two rotating blocks 46 are fixedly connected to the inner top ends of the hollow block 3, providing support for the rotating blocks 46. A conveyor mechanism 5 is fixedly connected to the top of the carrier 1, providing support for the conveyor mechanism 5. The conveyor mechanism 5 includes multiple support blocks 51, which are trapezoidal. The bottom ends of the multiple support blocks 51 are fixedly connected to the top of the carrier 1, providing support for the support blocks 51. A conveyor belt 52 is rotatably connected to the adjacent ends of the multiple support blocks 51, driving the metal parts to move. Limiting plates 53 are fixedly connected to the adjacent sides of the two support blocks 51. The support blocks 51 provide support for the limiting plates 53. The bottom ends of the two limiting plates 53 are in contact with the conveyor belt 52. When the conveyor belt 52 moves the metal parts, the limiting plates 53 prevent the metal parts from falling off the conveyor belt 52.

[0014] refer to Figure 2 , Figure 5, Figure 6 A guide mechanism 6 is fixedly connected to the top of the hollow block 3. The hollow block 3 and the guide mechanism 6 are welded together to ensure stable operation of the guide mechanism 6. The guide mechanism 6 includes a rectangular fixing block 61. The top of the fixing block 61 is fixedly connected to the top side of the hollow block 3, and the hollow block 3 provides support for the fixing block 61. A cylinder 62 is fixedly connected to the front side of the fixing block 61. The fixing block 61 and the cylinder 62 are welded together to ensure stable operation of the cylinder 62. A push block 63 is fixedly connected to the drive end of the cylinder 62, and the cylinder 62 drives the push block 63 to slide. The top of the push block 63 contacts the top of the hollow block 3, and the hollow block 3 provides a limit for the sliding of the push block 63. A driving rod 64 is fixedly connected to the bottom end of the push block 63. When the push block 63 slides, it drives the driving rod 64 to slide synchronously. Two push rods 65 are fixedly connected to the bottom end of the driving rod 64. When the driving rod 64 slides, it drives the push rods 65 to slide synchronously. Guide plates 66 are slidably connected to the outside of each of the two push rods 65. When the push rods 65 slide, they push the guide plates 66 to rotate. The bottom ends of the two guide plates 66 are slidably connected to the outside of the conveyor belt 52. When the guide plates 66 rotate, they provide a limiting and guiding function for the metal parts. The bottom ends of the two connecting shafts 67 are fixedly connected to the top of the inside of two support blocks 51. The two support blocks 51 are fixed to the connecting shafts 67, so that the connecting shafts 67 can rotate stably. The front ends of the inside of each of the two guide plates 66 are rotatably connected to the connecting shafts 67. The connecting shafts 67, through their fixation to the support blocks 51, guide the rotation of the guide plates 66. A control mechanism 7 is fixedly connected to the top of the hollow block 3. The hollow block 3 provides space for the installation of the control mechanism 7. This is prior art and will not be described in detail. The detection head 8 is fixedly connected to the top of the hollow block 3. The hollow block 3 provides space for the installation of the detection head 8. This is existing technology, so it will not be described in detail.

[0015] Working principle: The operator places the metal part on the conveyor belt 52. As the conveyor belt 52 moves, the metal part is displaced to the vicinity of the guide plate 66. The drive block 63 of the cylinder 62 is activated to slide. When the drive block 63 slides, it drives the drive rod 64 to slide. The drive rod 64 pushes the two push rods 65 to slide. When the two push rods 65 slide, they push the two guide plates 66 to rotate, making the opening of the two guide plates 66 on the conveyor belt 52 larger or smaller. This allows the metal part to be displaced more accurately under the clamping plate 442 as it passes by. When the metal part is moved directly below the clamping plate 442, the starting cylinder 41 drives the limiting block 42 to move. The limiting block 42 drives the driving block 43 to rotate. When the driving block 43 rotates, it drives the clamping block 441 to open or close. When the clamping block 441 opens or closes, it drives the clamping plate 442 to open and close synchronously. When the clamping plate 442 closes, it clamps the metal part, making the metal part parallel to the detection head 8, thereby stabilizing and fixing the metal part and avoiding displacement interference during the detection process.

[0016] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing fixture for the production of metal parts, comprising a carrier (1), characterized in that: The top of the carrier (1) is fixedly connected to a support plate (2), the top of the support plate (2) is fixedly connected to a hollow block (3), the top of the hollow block (3) is fixedly connected to a clamping mechanism (4), the top of the carrier (1) is fixedly connected to a conveying mechanism (5), and the top of the hollow block (3) is fixedly connected to a guiding mechanism (6). The clamping mechanism (4) includes a cylinder (41), the top of which is fixedly connected to the inner top of the hollow block (3). The driving end of the cylinder (41) is fixedly connected to two limiting blocks (42). Two driving blocks (43) are rotatably connected to the adjacent side of the two limiting blocks (42). A gripper assembly (44) is rotatably connected to the outside of the two driving blocks (43). A rotating shaft (45) is rotatably connected to the inner top of the two gripper assemblies (44). A rotating block (46) is fixedly connected to the outside of the two rotating shafts (45).

2. The detection tool for metal fitting production according to claim 1, characterized in that: The guiding mechanism (6) includes a fixed block (61), the top of which is fixedly connected to the top side inside the hollow block (3), a cylinder (62) is fixedly connected to the front side of the fixed block (61), a push block (63) is fixedly connected to the driving end of the cylinder (62), a driving rod (64) is fixedly connected to the bottom end of the push block (63), two push rods (65) are fixedly connected to the bottom end of the driving rod (64), guide plates (66) are slidably connected to the outside of the two push rods (65), and a connecting shaft (67) is rotatably connected to the front end of the inside of the two guide plates (66).

3. The detection tool for metal fitting production according to claim 2, characterized in that: The conveying mechanism (5) includes multiple support blocks (51), the bottom ends of the multiple support blocks (51) are fixedly connected to the top of the carrier (1), and a conveyor belt (52) is rotatably connected to one of the adjacent ends of the multiple support blocks (51), wherein a limit plate (53) is fixedly connected to one of the adjacent sides of two support blocks (51).

4. The detection tool for metal fitting production according to claim 1, characterized in that: A control mechanism (7) is fixedly connected to the top of the hollow block (3), and a detection head (8) is fixedly connected to the top of the interior of the hollow block (3).

5. The detection tool for metal fitting production according to claim 2, characterized in that: Both gripper assemblies (44) include gripping blocks (441), the interiors of the two gripping blocks (441) are fixedly connected to the exteriors of the two drive blocks (43), and the bottom ends of the two gripping blocks (441) are fixedly connected to clamping plates (442).

6. The detection tool for producing a metal fitting according to claim 3, characterized in that: The outer bottom ends of the two connecting shafts (67) are respectively fixedly connected to the inner top ends of the two support blocks (51), and the top ends of the two rotating blocks (46) are fixedly connected to the inner top ends of the hollow block (3).

7. The detection tool for producing a metal fitting according to claim 3, characterized in that: The bottom ends of the two limiting plates (53) are in contact with the conveyor belt (52), and the bottom ends of the two guide plates (66) are slidably connected to the outside of the conveyor belt (52).

8. The detection tool for producing a metal fitting according to claim 5, characterized in that: The top of the push block (63) is in contact with the inner top of the hollow block (3), and the inner tops of the two gripping blocks (441) are fixedly connected to the outside of the rotating shaft (45).