Rivet position quick inspection fixture for riveted parts

Abstract

The invention discloses a rapid inspection tool for the position of rivets of riveted parts, comprising a tool base, a detection block, and a product positioning device, wherein the product positioning device can fix the product to be inspected at a specified position, the detection block can be slidably installed on the tool base along a specified path, and an open groove is provided on the detection block for inserting only the rivets on the product to be inspected within a tolerance range. The invention fixes and positions the product to be inspected on the tool base, and then slides the detection block. If the position of the rivet on the product is within the tolerance range, the rivet on the product can be inserted into the open groove on the detection block, otherwise it cannot slide into the open groove of the detection block. The inspection tool can quickly realize accurate detection of the position of the rivet on the product, ensure that the rivet is within the tolerance range, realize rapid and full inspection of the product, improve product inspection efficiency, have no technical requirements for inspection personnel, save labor and inspection costs, and ensure product safety.

Description

Technical Field

[0001] The invention relates to a checking tool, in particular to a checking tool for quickly checking the position of rivets of a riveted part. Background Art

[0002] The rivets on the product need to be riveted by stamping. Due to the dimensional fluctuations during the stamping and riveting process, the rivet position fluctuates. It is necessary to quickly detect the rivet position on the parts during the production process. At present, the rivet position on the product is detected by three-coordinate measurement. Due to the slow speed of three-coordinate measurement, it affects the product detection efficiency and is difficult to achieve full inspection, which poses a hidden danger to the use of the product. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the present invention provides a rapid rivet position inspection tool for riveted parts, by which the rivet position on the product can be quickly and efficiently inspected.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a riveted part rivet position rapid inspection fixture, including a fixture base, a detection block, and a product positioning device, the product positioning device can fix the product to be inspected at a specified position, the detection block can be slidably installed on the fixture base along a specified path, and the detection block is provided with an open groove for inserting only rivets within the tolerance range on the product to be inspected.

[0005] As a further improvement of the present invention, the product positioning device includes positioning pins and a clamping mechanism, at least two positioning pins are fixedly installed on the inspection fixture base, at least two holes on the product to be inspected can be inserted into the positioning pins one by one, and the clamping mechanism can clamp and release the product to be inspected.

[0006] As a further improvement of the present invention, the positioning pin is a T-shaped structure with a lower end diameter larger than an upper end diameter, the hole on the product can just be mounted on the outer side of the upper end of the positioning pin, and the lower surface of the product stops on the step surface between the two ends of the positioning pin.

[0007] As a further improvement of the present invention, the clamping mechanism includes a support block, a clamping block and a clamping drive device. The support block is fixedly installed on the inspection fixture base, and the support block can just support the lower surface of the product to be inspected. The clamping block can be installed directly above the support block and can move up and down in the longitudinal direction. The clamping drive device can drive the clamping block to move up and down.

[0008] As a further improvement of the present invention, the clamping drive device is any one of a quick clamp, a cylinder and a motor-driven screw nut mechanism.

[0009] As a further improvement of the present invention, the structure in which the detection block can be slidably installed on the inspection fixture base along a specified path is as follows: at least two detection limit members are fixedly provided at intervals on the inspection fixture base, and at least two slide grooves extending along the opening direction of the opening groove are provided at intervals in parallel on the detection block, and each detection limit member can be relatively slidably inserted into each slide groove of the detection block.

[0010] As a further improvement of the present invention, a detection switch and a detection result output device are also provided. The detection switch is fixedly installed on the inspection fixture base. The detection result output device can sense the position of the detection block and transmit a signal to the detection result output device. The detection result output device can send a qualified signal or a bad signal according to the detection switch signal.

[0011] As a further improvement of the present invention, a detection block guiding device is further provided, which is fixedly mounted on the inspection fixture base. The detection block is provided with an inclined opening structure which has an angle with the opening of the opening groove. The detection block guiding device is provided with an inclined protrusion which matches the inclined opening structure, and the inclined protrusion can be inserted into the inclined opening structure on the detection block.

[0012] As a further improvement of the present invention, the detection base is provided with a plurality of detection blocks, detection limit members and product positioning devices, and is also provided with a linkage mechanism, and the linkage mechanism can drive each detection block to slide synchronously.

[0013] As a further improvement of the present invention, a control system, a product sensing device and a detection drive device are also provided. The product sensing device can sense the product fixedly positioned on the product positioning device and transmit a signal to the control system. The detection drive device can drive each detection block to slide synchronously through a linkage mechanism, and the control system controls the start and stop of the detection drive device.

[0014] The beneficial effects of the present invention are as follows: the present invention fixes the product to be inspected on the inspection fixture base, and then slides the inspection block. If the rivet position on the product is within the tolerance range, the rivet on the product can be inserted into the open groove on the inspection block, otherwise it will be blocked by the side wall of the inspection block and cannot slide into the open groove of the inspection block. The inspection fixture can quickly realize accurate detection of the rivet position on the product, ensure that the rivet is within the tolerance range, realize rapid and full inspection of the product, improve product inspection efficiency, have no technical requirements for inspection personnel, save labor and inspection costs, and ensure product safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention;

[0016] Figure 2 It is a front view of the present invention;

[0017] Figure 3It is a top view of the present invention. DETAILED DESCRIPTION

[0018] Embodiment: A rapid inspection fixture for the position of rivets of riveted parts, comprising a fixture base 1, a detection block 2 and a product positioning device, wherein the product positioning device can fix the product 4 to be inspected at a specified position, and the detection block 2 can be slidably installed on the fixture base 1 along a specified path, and an open slot 5 is provided on the detection block 2 for inserting only the rivets within the tolerance range on the product 4 to be inspected. During inspection, the product 4 to be inspected is fixed and positioned at the specified position of the fixture base 1 by the product positioning device, and then the detection block 2 is slid. When the detection block 2 slides to the preset inspection position, the open slot 5 on the detection block 2 is exactly located at the rivet position of the qualified product 4. If the rivet position on the product 4 to be inspected is within the tolerance range, it can be inserted into the open slot 5 on the detection block 2. If the rivet position on the product 4 to be inspected exceeds the tolerance range, the rivet will be blocked on the side wall of the detection block 2 and cannot be inserted into the open slot 5 of the detection block 2. The inspection fixture can quickly detect the rivet position on the product 4 to be inspected, without the need for measuring instruments, with high inspection efficiency, low requirements on inspection personnel, and can be inspected online.

[0019] The product positioning device includes positioning pins 6 and a clamping mechanism, at least two positioning pins 6 are fixedly installed on the inspection fixture base 1, at least two holes on the product 4 to be inspected can be inserted into the positioning pins 6 in a one-to-one correspondence, and the clamping mechanism can clamp and release the product 4 to be inspected. When positioning the product 4, it is only necessary to sleeve the two or more existing holes on the product 4 on the positioning pins 6 to achieve the horizontal positioning of the product 4, and then clamp the product 4 through the clamping mechanism to achieve the fixed positioning of the product 4, and the positioning is accurate and fast. In addition, a slot or retaining wall matching the shape of the product 4 can be set on the inspection fixture base 1 to achieve the positioning of the product 4. This is an equivalent replacement structure that can be easily thought of by a person skilled in the art based on this patent, and it belongs to the protection scope of this patent.

[0020] The positioning pin 6 is a T-shaped structure with a lower diameter larger than an upper diameter. The hole on the product 4 can be just sleeved on the outer side of the upper end of the positioning pin 6, and the lower surface of the product 4 stops on the step surface between the two ends of the positioning pin 6. The step surface of the positioning pin 6 can support the lower surface of the product 4 to be tested to prevent the product 4 from being deformed during testing.

[0021] The clamping mechanism includes a support block 7, a clamping block 8 and a clamping drive 9. The support block 7 is fixedly mounted on the inspection fixture base 1. The support block 7 can just support the lower surface of the product 4 to be inspected. The pressing block can be installed directly above the support block 7 and can move up and down in the longitudinal direction. The clamping drive 9 can drive the clamping block 8 to move up and down. The lower surface of the product 4 is supported by the support block 7, and then the product 4 is clamped by the clamping block 8.

[0022] The clamping drive device 9 is any one of a quick clamp, a cylinder and a motor-driven screw nut mechanism.

[0023] The structure of the detection block 2 installed on the inspection fixture base 1 that can slide along a specified path is as follows: at least two detection limiters 3 are fixedly provided at intervals on the inspection fixture base 1, and at least two slide grooves 10 extending along the opening direction of the opening groove 5 are provided at intervals in parallel on the detection block 2, and each detection limiter 3 can be inserted into each slide groove 10 of the detection block 2 in a relatively slidable manner. The sliding direction and sliding distance of the detection block 2 are limited by more than two detection limiters 3, so that the detection block 2 can slide along the specified trajectory within the required range, and the rivet position on the product 4 can be detected. At the same time, the detection block 2 cannot continue to slide forward after sliding to the detection position due to the limit of the detection limiter 3, so as to avoid the detection block 2 hitting the qualified rivets on the product 4 and damaging the rivets.

[0024] A detection switch 11 and a detection result output device are also provided. The detection switch 11 is fixedly installed on the inspection fixture base 1. The detection result output device can sense the position of the detection block 2 and transmit a signal to the detection result output device. The detection result output device can send a qualified signal or a bad signal according to the signal of the detection switch 11. When the rivet position on the product 4 is qualified, the detection block 2 can slide to the final detection position, which just triggers the detection switch 11. The detection switch 11 transmits the signal to the detection result output device, and the detection result output device outputs the detection result, which is convenient for the inspection personnel to make a quick judgment. The detection switch 11 can be a micro switch, or a photoelectric switch, etc. The detection result output device can be a sounder, such as an alarm, a buzzer, etc., or a light. If it is qualified, the green light will be on, and if it is unqualified, the red light will be on, etc.

[0025] A detection block guiding device 12 is also provided, and the detection block guiding device 12 is fixedly installed on the inspection fixture base 1. The detection block 2 is provided with an inclined opening structure with an angle with the opening of the opening slot 5, and the detection block guiding device 12 is provided with an inclined protrusion matching therewith, and the inclined protrusion can be inserted into the inclined opening structure on the detection block 2. The device can ensure that when the detection block 2 slides to the detection position, the position of its opening slot 5 is just within the tolerance range of the rivet on the qualified product 4, avoiding the position error of the opening slot 5 and ensuring the detection accuracy. The opening of the inclined opening structure on the detection block 2 is preferably provided with a chamfer to guide the inclined protrusion on the detection block guiding device 12 and avoid collision.

[0026] The detection base is provided with several groups of detection blocks 2, detection limiters 3 and product positioning devices, and is also provided with a linkage mechanism, which can drive each detection block 2 to slide synchronously. This structure can realize synchronous detection of multiple products 4, greatly improving the detection efficiency, and the multiple products 4 can be products 4 of the same specification or products 4 of similar specifications.

[0027] A control system, a product 4 sensing device and a detection drive device are also provided. The product 4 sensing device can sense the product 4 fixedly positioned on the product positioning device and transmit a signal to the control system. The detection drive device can drive each detection block 2 to slide synchronously through a linkage mechanism, and the control system controls the start and stop of the detection drive device. The product 4 sensing device senses that the product 4 has been fixedly positioned to achieve automatic detection. The control system can also control the clamping device to automatically clamp the product 4, achieving fully automatic clamping, fixing and detection, improving intelligent detection, saving labor and improving detection efficiency.

Claims

1. A rapid inspection tool for the rivet position of a riveted part, characterized by: The invention comprises a test fixture base (1), a detection block (2), and a product positioning device, wherein the product positioning device can fix the product to be detected (4) at a specified position, the detection block can be slidably mounted on the test fixture base along a specified path, the detection block is provided with an open slot (5) for inserting only rivets within a tolerance range on the product to be detected, the product positioning device comprises a positioning pin (6) and a clamping mechanism, at least two positioning pins are fixedly mounted on the test fixture base, at least two holes on the product to be detected can be inserted into the positioning pins in a one-to-one correspondence, the clamping mechanism can clamp and release the product to be detected, and the detection block can be slidably mounted along the specified path. The structure installed on the inspection fixture base is as follows: at least two inspection limit members (3) are fixedly provided at intervals on the inspection fixture base, at least two slide grooves (10) extending along the opening direction of the opening groove are provided at intervals in parallel on the inspection block, each inspection limit member can be inserted into each slide groove of the inspection block in a relatively slidable manner, when the inspection block slides to a preset inspection position, the opening groove on the inspection block is located at the rivet position of the qualified product, if the rivet position on the product to be inspected is within the tolerance range, it can be inserted into the opening groove on the inspection block, if the rivet position on the product to be inspected exceeds the tolerance range, the rivet will be blocked on the side wall of the inspection block and cannot be inserted into the opening groove of the inspection block.

2. The rivet position rapid inspection tool for riveted parts according to claim 1 is characterized by: The positioning pin is a T-shaped structure with a lower end diameter larger than an upper end diameter. The hole on the product can be just sleeved on the outer side of the upper end of the positioning pin, and the lower surface of the product stops on the step surface between the two ends of the positioning pin.

3. The rivet position rapid inspection tool for riveted parts according to claim 1 is characterized in that: The clamping mechanism comprises a support block (7), a clamping block (8) and a clamping drive device (9); the support block is fixedly mounted on the inspection fixture base, the support block can just support the lower surface of the product to be inspected, the clamping block can be mounted directly above the support block and can move vertically; the clamping drive device can drive the clamping block to move vertically.

4. The rivet position rapid inspection tool for riveted parts according to claim 3 is characterized in that: The clamping drive device is any one of a quick clamp, a cylinder and a motor-driven screw nut mechanism.

5. The rivet position rapid inspection tool for riveted parts according to claim 1, characterized in that: A detection switch (11) and a detection result output device are also provided. The detection switch is fixedly mounted on the inspection fixture base. The detection result output device can sense the position of the detection block and transmit a signal to the detection result output device. The detection result output device can send a qualified signal or a bad signal according to the detection switch signal.

6. The rivet position rapid inspection tool for riveted parts according to claim 5, characterized in that: A detection block guiding device (12) is also provided, the detection block guiding device is fixedly mounted on the inspection fixture base, the detection block is provided with an inclined opening structure which has an angle with the opening of the opening slot, the detection block guiding device is provided with an inclined protrusion matching the inclined opening structure, and the inclined protrusion can be inserted into the inclined opening structure on the detection block.

7. The rivet position rapid inspection tool for riveted parts according to claim 1 or 6, characterized in that: The detection base is provided with a plurality of detection blocks, detection limiters and product positioning devices, and is also provided with a linkage mechanism, and the linkage mechanism can drive each detection block to slide synchronously.

8. The rivet position rapid inspection tool for riveted parts according to claim 7, characterized in that: A control system, a product sensing device and a detection drive device are also provided. The product sensing device can sense the product fixedly positioned on the product positioning device and transmit a signal to the control system. The detection drive device can drive each detection block to slide synchronously through a linkage mechanism. The control system controls the start and stop of the detection drive device.

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