A shaft forging finished product size detection device

Abstract

The utility model relates to the field of shaft forging finished product size detection, disclose a kind of shaft forging finished product size detection device, including detection base, fixedly connected with the fixed platform of both sides corresponding arrangement on detection base, both sides fixed platform are equipped with the fixed clamping hole of through arrangement, fixed clamping hole is equipped with the adjusting cavity of coaxial arrangement in fixed platform, not less than one rotatingly connected with the adjusting hole of along annular array arrangement in fixed clamping hole inner wall, adjusting hole are all hinged with the positioning swing arm, adjusting cavity is equipped with the adjusting mechanism of driving positioning swing arm synchronous swing;Detection base is fixedly connected between both sides fixed platform and is equipped with lifting support, lifting support upper end is fixedly connected with detection support, detection support upper end is fixedly connected with U-shaped frame, U-shaped frame is rotatably connected with range wheel.The utility model has the advantages of compared with prior art, the radius-length of shaft forging can be detected simultaneously, convenient operation, time saving and labor saving.

Description

Technical Field

[0001] This utility model relates to the field of finished shaft forging dimension inspection technology, specifically to a finished shaft forging dimension inspection device. Background Technology

[0002] As key components in mechanical transmission systems, the dimensional accuracy of shaft forgings directly affects the assembly quality and operational performance of the entire machine. Traditional methods for dimensional inspection of shaft forgings typically involve segmented measurements using tools such as calipers, micrometers, and templates. In particular, the radius (diameter) and length of the shaft often require multiple measurements and recordings, which is cumbersome, inefficient, and prone to measurement errors due to human factors.

[0003] While there are some automated or semi-automated inspection devices in the existing technology, such as those using laser ranging or optical imaging measurement systems, these devices are often complex in structure and expensive. Moreover, most of them can only perform single-dimensional parameter inspection, such as only diameter or only length, and cannot simultaneously complete the comprehensive inspection of multiple dimensions in the same tooling. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a device for detecting the finished dimensions of shaft forgings, which can simultaneously detect the radius and length of shaft forgings, and is convenient to operate, saving time and effort.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a device for detecting the dimensions of finished shaft forgings, comprising a detection base, on which fixed platforms are fixedly connected on both sides, and fixed clamping holes are provided through the fixed platforms on both sides. An adjustment cavity is provided within each fixed platform, coaxially arranged with the fixed clamping holes. At least one adjustment hole arranged in a circular array is rotatably connected to the inner wall of each fixed clamping hole. A positioning swing arm is hinged within each adjustment hole. An adjustment mechanism for driving the positioning swing arm to swing synchronously is provided within the adjustment cavity. A lifting bracket is fixedly connected to the detection base between the two fixed platforms. A detection bracket is fixedly connected to the upper end of the lifting bracket. A U-shaped frame is fixedly connected to the upper end of the detection bracket. A ranging wheel is rotatably connected within the U-shaped frame. An infrared ranging generator is fixedly connected to one side of the U-shaped frame. A ranging receiver is provided on the base.

[0006] As an improvement, the adjustment mechanism includes a gear rotatably connected to the adjustment hole, a positioning swing arm fixedly connected to one side of the gear, an adjustment ring slidably connected in the adjustment cavity, a rack that meshes with the gear fixedly connected to one side of the adjustment ring, and a lead screw mechanism for driving the adjustment ring to slide in the adjustment cavity.

[0007] As an improvement, a pulley is rotatably connected to the end of the positioning swing arm.

[0008] As an improvement, the lifting bracket includes an electric push rod fixedly connected to the detection base, and a lifting plate is fixedly connected to the upper end of the electric push rod.

[0009] As an improvement, the detection bracket includes a movable sleeve fixedly connected to the lifting plate, a detection column slidably inserted into the movable sleeve, a U-shaped frame fixedly connected to the upper end of the detection column, a pressure sensor fixedly connected to the bottom surface of the movable sleeve, and a pressure spring fixedly connected between the pressure sensor and the detection column.

[0010] As an improvement, the lead screw mechanism includes a limiting slide rod fixedly connected to the adjustment cavity, a limiting slide hole on the adjustment ring that cooperates with the limiting slide rod, an adjustment lead screw rotatably connected to the adjustment cavity, a motor that drives the adjustment lead screw to rotate fixedly connected to one end of the fixed platform, and a screw hole on the adjustment ring that cooperates with the adjustment lead screw.

[0011] The advantages of this utility model compared with the prior art are as follows: (1) By integrating the clamping and positioning mechanism and the measuring mechanism on the same device, this utility model can complete the synchronous detection of the radius (diameter) and length of shaft forgings at one time, which significantly improves the detection efficiency and avoids the cumbersome process of multiple clamping and step-by-step measurement in the traditional method.

[0012] (2) By setting up multiple positioning swing arms and their driving mechanisms that can swing synchronously, it can flexibly adapt to shafts of different diameters, achieve rapid centering and stable clamping, and improve the versatility and consistency of the equipment.

[0013] (3) The electric push rod drives the lifting bracket, which, combined with the detection bracket structure with pressure sensing, can achieve stable contact and automatic sensing of the measuring head, reduce human intervention, reduce operational intensity, and improve measurement repeatability and accuracy.

[0014] (4) Using an infrared rangefinder and a measuring wheel for non-contact length measurement, combined with a mechanical contact radius detection structure, can ensure measurement accuracy while avoiding damage to the workpiece surface, and is suitable for high-precision inspection of finished forgings. Attached Figure Description

[0015] Figure 1 This is an exploded view of a device for detecting the dimensions of shaft forgings according to this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of a shaft forging finished product dimension detection device according to the present invention.

[0017] Figure 3 This is a cross-sectional view of a device for detecting the dimensions of shaft forgings according to this utility model.

[0018] As shown in the figure: 1. Detection base; 2. Fixing platform; 3. Fixing clamp hole; 4. Positioning swing arm; 5. Gear; 6. Pulley; 7. Rack; 8. Adjusting ring; 9. Adjusting screw; 10. Motor; 11. Adjusting hole; 12. Electric push rod; 13. Lifting plate; 14. Movable sleeve; 15. Detection column; 16. U-shaped frame; 17. Distance measuring wheel; 18. Infrared distance measuring generator; 19. Distance measuring receiver; 20. Adjustment cavity; 21. Pressure spring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 3 As shown, a device for detecting the dimensions of finished shaft forgings includes a detection base 1. Fixed platforms 2 are fixedly connected to the detection base 1 on both sides. Each fixed platform 2 has a through-hole 3. An adjustment cavity 20 is provided within each fixed platform 2, coaxially arranged with the fixed clamping hole 3. At least one adjustment hole 11 arranged in a circular array is rotatably connected to the inner wall of each fixed clamping hole 3. A positioning swing arm 4 is hinged within each adjustment hole 11, and a pulley 6 is rotatably connected to the end of each positioning swing arm 4.

[0021] The adjustment cavity 20 is provided with an adjustment mechanism that drives the positioning swing arm 4 to swing synchronously. The adjustment mechanism includes a gear 5 rotatably connected to the adjustment hole 11. The positioning swing arm 4 is fixedly connected to one side of the gear 5. An adjustment ring 8 is slidably connected in the adjustment cavity 20. A rack 7 that meshes with the gear 5 is fixedly connected to one side of the adjustment ring 8. The adjustment cavity 20 is provided with a screw mechanism that drives the adjustment ring 8 to slide. The screw mechanism includes a limiting slide rod fixedly connected in the adjustment cavity 20. The adjustment ring 8 is provided with a limiting slide hole that cooperates with the limiting slide rod. An adjustment screw 9 is rotatably connected in the adjustment cavity 20. A motor 10 that drives the adjustment screw 9 to rotate is fixedly connected to one end of the fixed platform 2. The adjustment ring 8 is provided with a screw hole that cooperates with the adjustment screw 9.

[0022] A lifting bracket is fixedly connected to the detection base 1 between the two fixed platforms 2. A detection bracket is fixedly connected to the upper end of the lifting bracket. A U-shaped frame 16 is fixedly connected to the upper end of the detection bracket. A ranging wheel 17 is rotatably connected inside the U-shaped frame 16. An infrared ranging generator 18 is fixedly connected to one side of the U-shaped frame 16. A ranging receiver 19 is provided on the base. The lifting bracket includes an electric push rod 12 fixedly connected to the detection base 1. A lifting plate 13 is fixedly connected to the upper end of the electric push rod 12. The detection bracket includes a movable sleeve 14 fixedly connected to the lifting plate 13. A detection column 15 is slidably inserted into the movable sleeve 14. The U-shaped frame 16 is fixedly connected to the upper end of the detection column 15. A pressure sensor is fixedly connected to the bottom surface of the movable sleeve 14. A pressure spring 21 is fixedly connected between the pressure sensor and the detection column 15.

[0023] In practical use, the shaft forging to be tested is placed horizontally between the fixing holes 3 of the two fixed platforms 2. The multiple positioning swing arms 4 are driven by the adjustment mechanism to swing inward synchronously, so that the pulleys 6 at the ends contact and clamp the outer circle of the shaft, achieving automatic centering and stable fixation. Since each positioning swing arm 4 is linked to the rack and pinion mechanism through the gear 5, it can ensure that the clamping center always coincides with the axis of the fixing hole 3, which can accommodate shafts of different diameters.

[0024] When measuring length, the electric push rod 12 of the lifting bracket is activated, pushing the detection bracket upward. This causes the measuring wheel 17 on the U-shaped frame 16 to lightly press against one end face of the shaft, gently pushing the shaft axially. The shaft slides axially supported by the pulley 6, simultaneously rotating the measuring wheel 17. The infrared ranging generator 18 and the ranging receiver 19 work together to accurately calculate the axial displacement of the shaft by recording the number of rotations and angular changes of the measuring wheel 17, thus obtaining its length. The measuring wheel 17 makes rolling contact with the shaft end, preventing scratches on the workpiece surface.

[0025] When measuring the radius, the same infrared rangefinder 18 transmits a signal to the range receiver 19 on the detection base 1 to measure the distance (H) from the highest point of the outer edge of the shaft to the base. Since the axial height (H0) of the fixed clamping hole 3 is a known fixed value (fixed by the device structure), and the center of the shaft coincides with the axis of the fixed clamping hole 3 after clamping, the shaft radius R = H0 - H. The radius (or diameter) value is automatically calculated and displayed by the electronic system.

[0026] The detection bracket is equipped with a pressure sensor and a pressure spring 21, which provides cushioning and senses contact force when the measuring wheel 17 contacts the shaft end. When the pressure reaches a set threshold, the electric push rod 12 stops rising and falling, ensuring a constant measuring force and improving repeatability. All measurement data can be integrated, processed, and output for one-click rapid detection.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0029] 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.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for detecting the dimensions of finished shaft forgings, comprising a detection base (1), wherein fixed platforms (2) are fixedly connected to the detection base (1) on both sides, characterized in that: Both sides of the fixed platform (2) are provided with through fixed clamping holes (3). The fixed platform (2) is provided with an adjustment cavity (20) arranged coaxially with the fixed clamping hole (3). The inner wall of the fixed clamping hole (3) is rotatably connected with at least one adjustment hole (11) arranged in a ring array. The adjustment hole (11) is hinged with a positioning swing arm (4). The adjustment cavity (20) is provided with an adjustment mechanism that drives the positioning swing arm (4) to swing synchronously. A lifting bracket is fixedly connected to the detection base (1) between the two fixed platforms (2). A detection bracket is fixedly connected to the upper end of the lifting bracket. A U-shaped frame (16) is fixedly connected to the upper end of the detection bracket. A ranging wheel (17) is rotatably connected inside the U-shaped frame (16). An infrared ranging generator (18) is fixedly connected to one side of the U-shaped frame (16). A ranging receiver (19) is provided on the base.

2. The device for detecting the dimensions of finished shaft forgings according to claim 1, characterized in that: The adjustment mechanism includes a gear (5) rotatably connected to the adjustment hole (11), a positioning arm (4) fixedly connected to one side of the gear (5), an adjustment ring (8) slidably connected in the adjustment cavity (20), a rack (7) fixedly connected to one side of the adjustment ring (8) and meshing with the gear (5), and a screw mechanism for driving the adjustment ring (8) to slide in the adjustment cavity (20).

3. The device for detecting the dimensions of finished shaft forgings according to claim 1, characterized in that: The end of the positioning swing arm (4) is rotatably connected to a pulley (6).

4. The device for detecting the dimensions of finished shaft forgings according to claim 1, characterized in that: The lifting bracket includes an electric push rod (12) fixedly connected to the detection base (1), and a lifting plate (13) is fixedly connected to the upper end of the electric push rod (12).

5. The device for detecting the dimensions of finished shaft forgings according to claim 4, characterized in that: The detection bracket includes a movable sleeve (14) fixedly connected to the lifting plate (13), a detection column (15) is slidably inserted into the movable sleeve (14), the U-shaped frame (16) is fixedly connected to the upper end of the detection column (15), a pressure sensor is fixedly connected to the bottom surface of the movable sleeve (14), and a pressure spring (21) is fixedly connected between the pressure sensor and the detection column (15).

6. The device for detecting the dimensions of finished shaft forgings according to claim 2, characterized in that: The lead screw mechanism includes a limiting slide rod fixedly connected to the adjustment cavity (20), a limiting slide hole that cooperates with the limiting slide rod on the adjustment ring (8), an adjustment lead screw (9) rotatably connected to the adjustment cavity (20), a motor (10) that drives the adjustment lead screw (9) to rotate fixedly connected to one end of the fixed platform (2), and a screw hole that cooperates with the adjustment lead screw (9) on the adjustment ring (8).

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