Three-dimensional bent profile piece detection tool structure

Abstract

The utility model relates to a three-dimensional bending section bar member testing fixture structure comprising a base plate and a positioning seat which is fixedly connected on the base plate and extends in an arc shape, and the top of the positioning seat is provided with an arc groove for placing a section bar along the extension direction of the positioning seat. A semi-finished product positioning assembly for positioning a semi-finished product profile and a finished product positioning assembly for positioning a finished product profile are arranged in the arc grooves in the positioning seat, the semi-finished product positioning assembly comprises an ejector block which is arranged in the positioning seat and used for abutting against the back side of the semi-finished product profile, and the back side of the ejector block is fixedly connected with a connecting rod. The connecting rod penetrates through a clamping seat, the end of the connecting rod is fixedly connected with a pushing block, a spring is connected between the pushing block and the clamping seat in an abutting mode, and the pushing block retracts or protrudes into a clamping groove formed in the clamping seat through stretching and retracting of the spring.

Description

Technical Field

[0001] This utility model relates to a three-dimensional bending profile inspection fixture structure. Background Technology

[0002] Currently, integrated automotive parts are becoming increasingly common, and the proportion of three-dimensional bent aluminum alloy products is rising. For these types of parts, the inspection of the bending and subsequent processing steps often involves separate fixture design or the development of inspection fixtures only for single finished products. This means that semi-finished profiles and finished profiles require different fixtures for quality inspection. Separating the fixture design for the bending and subsequent processing steps of three-dimensional bent products leads to longer fixture lead times and increased costs, which is detrimental to the short-cycle requirements of current new automotive projects with small batch sizes. This situation urgently needs improvement. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a three-dimensional bending profile inspection fixture structure, which is not only reasonable in structure, but also convenient and quick.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a three-dimensional bending profile inspection fixture structure, including a base plate and a positioning seat that is fixedly connected to the base plate and extends in an arc shape. The top of the positioning seat is provided with an arc groove for placing the profile. The positioning seat is provided with a semi-finished product positioning component for positioning semi-finished profiles and a finished product positioning component for finished profiles respectively in the arc groove. The semi-finished product positioning component includes a top block disposed in the positioning seat for abutting the back side of the semi-finished profile. A connecting rod is fixedly connected to the back side of the top block. The connecting rod passes through a card seat and is fixedly connected to a push block at its end. A spring is abutting between the push block and the card seat, and the top block is retracted or protruded into the card slot opened on the card seat by the extension and contraction of the spring.

[0005] Furthermore, the positioning seat has an inwardly recessed groove for placing the semi-finished product positioning component and for the top block to retract or protrude. The card seat is fixed in the groove, and a through groove is opened at the bottom of the groove and extends to the back side of the positioning seat to place and slide the push block.

[0006] Furthermore, the card holder has two parallel limiting plates protruding outwards, and the card slots are all opened at the outer ends of the two limiting plates. A retraction groove is left between the two limiting plates for the top block to rotate and retract for placement.

[0007] Furthermore, the finished product positioning component is provided in two sets and is respectively located at both ends of the positioning seat. The finished product positioning component includes a vertically opened sliding hole on the positioning seat. A positioning pin for inserting into the bottom of the finished profile is vertically slidably connected in the sliding hole. Positioning reference holes are opened at the bottom of both ends of the finished profile (front windshield lower crossbeam). A rod is radially inserted on the positioning pin to facilitate the adjustment of the positioning pin's lifting and lowering. The rod extends outward from the positioning seat.

[0008] Furthermore, the positioning pin has a radially penetrating insertion hole through which the insertion rod passes through the sliding connection, and a positioning pin is coaxially fixed at the top of the positioning pin.

[0009] Furthermore, the positioning seat has a through groove extending from the outside into the sliding hole, and a limiting sleeve is fitted and fixed on the insert rod. Both the upper and lower ends of the through groove are provided with circular grooves for limiting insertion and positioning. The width of the through groove is smaller than the outer diameter of the limiting sleeve.

[0010] Furthermore, each of the base plates at both ends of the positioning seat is provided with a cutting edge inspection tool. The cutting edge inspection tool includes a limiting base, on which a flipping groove is vertically opened. A flipping rod is rotatably connected to the bottom of the flipping groove, and a cutting edge detection block for detecting the cutting edge of the end face of the finished profile is fixedly provided at the top of the flipping rod.

[0011] Furthermore, both the flipping rod and the limiting base are provided with threaded holes, and when the flipping rod is rotated to a vertical position, bolts pass through the threaded holes to fix the flipping rod and the limiting base.

[0012] Furthermore, the arc groove is provided with a number of positioning pads at intervals to support the bottom of the semi-finished profile or the finished profile.

[0013] Furthermore, the base is provided with several quick clamps for pressing semi-finished or finished profiles onto the arc groove.

[0014] Furthermore, the through groove extends obliquely upward from the back side and communicates with the groove arranged in the same direction.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] ① The inspection requirements for semi-finished profiles and single-piece finished profiles in the bending process are integrated into one inspection fixture, effectively reducing costs.

[0017] ② In the bending process, there are no relevant positioning reference holes, but effective positioning can be achieved through the setting of semi-finished product inspection components. This does not interfere with the finished product inspection components, making it more convenient.

[0018] ③ In the finished product inspection, the inspection tool is positioned using the machined positioning reference holes and related surfaces, which helps to improve the accuracy of the inspection of the arc surface and related hole positions and edges.

[0019] ④ When inspecting the curved surface of semi-finished profiles, the relevant positioning pins of the finished parts are retractable and do not affect the placement of the parts; when inspecting individual finished products, the top block used for bending process inspection is retractable and does not affect the inspection of individual finished products.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a top view of an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 A cross-sectional view of the semi-finished positioning component of AA.

[0024] Figure 4 for Figure 2 A cross-sectional view of the finished positioning components of BB.

[0025] Figure 5 This is a schematic diagram of the structure of the semi-finished product positioning component in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the edge-cutting inspection tool in an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the finished profile in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the testing of the finished profile in an embodiment of this utility model.

[0029] In the diagram: 1-Base plate, 2-Positioning seat, 3-Arc groove, 4-Semi-finished positioning component, 5-Finished positioning component, 7-Top block, 8-Connecting rod, 9-Card seat, 10-Push block, 11-Spring, 12-Card groove, 13-Groove, 14-Limiting plate, 15-Retraction groove, 16-Sliding hole, 17-Positioning pin, 18-Positioning reference hole, 19-Insertion rod, 20-Insertion hole, 21-Positioning pin, 22-Through groove, 23-Limiting sleeve, 24-Circular groove, 25-Edge cutting gauge, 26-Limiting base, 27-Flipping groove, 28-Flipping rod, 29-Edge cutting detection block, 30-Threaded hole, 31-Bolt, 32-Positioning pad, 33-Quick clamp, 34-Finished profile. Detailed Implementation

[0030] To make the above-mentioned features and advantages of this utility model more apparent and understandable, the following is a detailed description of an embodiment in which the profile is selected as the lower crossbeam of the front windshield, in conjunction with the accompanying drawings.

[0031] like Figures 1-8As shown, a three-dimensional bending profile inspection fixture structure includes a base plate 1 and a positioning seat 2 that extends in an arc shape and is fixed to the base plate. The top of the positioning seat has an arc groove 3 for placing semi-finished profiles and finished profiles along its extension direction. The positioning seat has a semi-finished positioning component 4 and a finished positioning component 5 for positioning semi-finished profiles respectively arranged in the arc groove. The semi-finished positioning component includes a top block 7 disposed in the positioning seat for abutting the back side of the semi-finished profile. A connecting rod 8 is fixed to the back side of the top block. The connecting rod passes through a card seat 9 and is fixed to a push block 10 at its end. A spring 11 is abutting between the push block and the card seat. The spring retracts or protrudes the top block into a retraction groove or card slot 12 opened on the card seat. The spring is sleeved on the connecting rod between the push block and the card seat. The top block is convex in shape.

[0032] In this embodiment of the utility model, the positioning seat is recessed inwardly with a groove 13 for placing the semi-finished product positioning component and for the top block to retract or protrude. The card seat is fixed in the groove. A through groove is opened at the bottom of the groove and the through groove extends to the back side of the positioning seat to place and slide the push block. Two sets of semi-finished product positioning components are provided.

[0033] In this embodiment of the utility model, two parallel limiting plates 14 protrude outward from the card holder, and the card slots are all opened at the outer ends of the two limiting plates. A retraction groove 15 is left between the two limiting plates for the top block to rotate and retract for placement.

[0034] In this embodiment of the utility model, the finished product positioning component is provided in two sets and is respectively located at both ends of the positioning seat. The finished product positioning component includes a sliding hole 16 vertically opened on the positioning seat. A positioning pin 17 for inserting into the bottom of the finished profile is vertically slidably connected in the sliding hole. Positioning reference holes 18 are opened at the bottom of both ends of the finished profile (front windshield lower crossbeam). A rod 19 for adjusting the lifting and lowering of the positioning pin is radially inserted on the positioning pin. The rod extends outward from the positioning seat, and a handle for easy lifting can be provided at the outer end of the rod.

[0035] In this embodiment of the utility model, the positioning pin has a radially penetrating insertion hole 20 for the insertion rod to pass through the sliding connection, and the top of the positioning pin is coaxially fixed with a positioning pin 21. The positioning of the finished profile is completed by inserting the positioning pin into the positioning reference hole of the finished profile.

[0036] In this embodiment of the utility model, a through groove 22 for communication is opened on the positioning seat from the outside to the sliding hole. A limiting sleeve 23 is sleeved and fixed on the insert rod. The upper and lower ends of the through groove are provided with circular grooves 24 for limiting insertion and positioning. The width of the through groove is smaller than the outer diameter of the limiting sleeve. When in use, the insert rod is pulled outward to make the limiting sleeve disengage from the circular groove. At this time, the positioning pin is unlocked. The positioning pin can be raised and lowered by pulling the insert rod up and down. After it is in place, the insert rod is inserted again to insert the limiting sleeve into the circular groove to complete the positioning. A spring can be sleeved on the insert rod located between the limiting sleeve and the positioning pin to facilitate the automatic reset of the limiting sleeve.

[0037] In this embodiment of the utility model, a cutting edge inspection tool 25 is provided on the bottom plate at both ends of the positioning seat. The cutting edge inspection tool includes a limiting base 26. A flipping groove 27 is vertically opened on the limiting base. A flipping rod 28 is rotatably connected to the bottom of the flipping groove. A cutting edge detection block 29 for detecting the cutting edge of the end face of the finished profile is fixed on the top of the flipping rod.

[0038] In this embodiment of the utility model, both the flipping rod and the limiting base are provided with threaded holes 30. When the flipping rod is rotated to a vertical state, the flipping rod and the limiting base are fixed by bolts 31 passing through the threaded holes.

[0039] In this embodiment of the utility model, a plurality of positioning pads 32 are provided at intervals in the arc groove to support the bottom of the semi-finished profile or the finished profile.

[0040] In this embodiment of the utility model, the base is provided with a plurality of quick clamps 33 for pressing semi-finished or finished profiles onto the arc groove.

[0041] In this embodiment of the utility model, the through groove extends obliquely upward from the back side and communicates with the groove arranged in the same direction.

[0042] The working principle of this utility model embodiment is as follows: During the inspection of semi-finished profiles, the push block is first pushed in to compress the spring, which drives the connecting rod to push outward, causing the top block to disengage from the retraction groove. Then, the push block is rotated to rotate the top block 90°. At this time, the push block is released, and the spring is stretched and reset to make the push block snap into the slot. At this time, the outer end of the top block protrudes from the groove, which can be used to push the semi-finished profile. When the curvature is tested, the bent semi-finished profile needs to be placed against the arc groove along the corresponding curvature of the gauge to confirm that the semi-finished product can be naturally and stably attached. The bottom is supported by the positioning pad, and the top is pressed by the quick clamp. Then, the go / no-go gauge of the gauge is used to test the curvature surface. If necessary, a feeler gauge can be used for measurement. During this process, the top block is in the extended state, and the positioning pin is in the retracted state. The top block is pushed against the surface of the semi-finished profile to position the semi-finished profile. The length of the semi-finished profile is longer than that of the finished profile, that is, the cutting edge gauges on both sides are not used. That is, the bolts are loosened and the rotating rod is swung to make way for the semi-finished profile.

[0043] That is, the gap between the outer surface of the semi-finished profile and the back side arc groove should be consistent with the gap between the finished profile and the back side arc groove after the finished profile is positioned by the positioning reference hole.

[0044] During finished profile inspection, the push block is rotated in the opposite direction using the method described above. Then, the spring is stretched and reset, causing the push block to engage in the retraction groove. At this point, the top block does not protrude from the groove. The flipping rod is flipped vertically, and the bolt is tightened to complete the preparation for the edge trimming fixture inspection. Next, the finished profile is placed in the arc groove. Then, the insert rod is pulled outwards to disengage the limiting sleeve from the circular groove, thus unlocking the positioning pin. The positioning pin can then be lifted by pulling the insert rod upwards, inserting it into the positioning reference hole to complete the positioning. Then, the important arc surfaces, other inspection holes, and edges of the finished profile are inspected. During this process, the top block of the fixture is in the retracted state, and the positioning pin is in the extended state.

[0045] This utility model is not limited to the preferred embodiment described above. Anyone can derive other various forms of three-dimensional bending profile inspection fixture structures based on the teachings of this utility model. All equivalent variations and modifications made within the scope of the claims of this utility model should be considered within the scope of this utility model.

Claims

1. A three-dimensional bending profile inspection fixture structure, characterized in that: The device includes a base plate and a positioning seat that extends in an arc shape and is fixed to the base plate. The top of the positioning seat has an arc groove for placing profiles along its extension direction. The positioning seat has a semi-finished product positioning component and a finished product positioning component for positioning semi-finished profiles respectively arranged in the arc groove. The semi-finished product positioning component includes a top block disposed in the positioning seat for abutting the back side of the semi-finished profile. A connecting rod is fixed to the back side of the top block. The connecting rod passes through a card seat and has a push block fixed to its end. A spring is abutting between the push block and the card seat, and the spring retracts or protrudes the top block into the card slot opened on the card seat.

2. The three-dimensional bending profile inspection fixture structure according to claim 1, characterized in that: The positioning seat has an inwardly recessed groove for placing the semi-finished product positioning component and for the top block to retract or protrude. The card seat is fixed in the groove. A through groove is opened at the bottom of the groove and extends to the back side of the positioning seat to place and slide the push block.

3. The three-dimensional bending profile inspection fixture structure according to claim 2, characterized in that: The card holder has two parallel limiting plates protruding outwards. The card slots are all opened at the outer ends of the two limiting plates, and a retraction groove is left between the two limiting plates for the top block to rotate and retract.

4. The three-dimensional bending profile inspection fixture structure according to claim 1, characterized in that: The finished product positioning component is provided in two sets and is respectively located at both ends of the positioning base. The finished product positioning component includes a sliding hole vertically opened on the positioning base. A positioning pin for inserting into the bottom of the finished profile is vertically slidably connected in the sliding hole. A rod for adjusting the lifting and lowering of the positioning pin is radially inserted on the positioning pin. The rod extends outward from the positioning base.

5. The three-dimensional bending profile inspection fixture structure according to claim 4, characterized in that: The positioning pin has a radially penetrating insertion hole through which the insertion rod passes through the sliding connection, and a positioning pin is coaxially fixed at the top of the positioning pin.

6. The three-dimensional bending profile inspection fixture structure according to claim 4, characterized in that: The positioning seat has a through groove extending from the outside to the inside of the sliding hole. A limiting sleeve is fitted and fixed on the insert rod. The upper and lower ends of the through groove are provided with circular grooves for limiting insertion and positioning.

7. The three-dimensional bending profile inspection fixture structure according to claim 1, characterized in that: Both ends of the positioning seat are provided with cutting edge inspection tools. The cutting edge inspection tool includes a limiting base. A flipping groove is vertically opened on the limiting base. A flipping rod is rotatably connected to the bottom of the flipping groove. A cutting edge detection block for detecting the cutting edge of the end face of the finished profile is fixed on the top of the flipping rod.

8. The three-dimensional bending profile inspection fixture structure according to claim 7, characterized in that: Both the flipping rod and the limiting base have threaded holes. When the flipping rod is rotated to a vertical position, bolts pass through the threaded holes to fix the flipping rod and the limiting base.

9. The three-dimensional bending profile inspection fixture structure according to claim 1, characterized in that: The arc groove is provided with a number of positioning pads at intervals to support the bottom of the semi-finished or finished profile.

10. The three-dimensional bending profile inspection fixture structure according to claim 1, characterized in that: The base plate is equipped with several quick clamps for pressing semi-finished or finished profiles onto the arc groove.

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