Continuous detection device for diameter and length dimension of pin shaft

Abstract

The invention discloses a pin shaft diameter and length dimension continuous detection device, which belongs to the technical field of dimension detection equipment and comprises a base station and a rotary worktable arranged on the base station. Six tool blocks are distributed on the outer edge of the rotary workbench in a circumferential array at equal intervals, and two limiting side plates are symmetrically arranged on the two sides of each tool block; a V-shaped material containing groove is formed in the upper end of the tool block. The first support, the second support and the third support are respectively provided with a feeding mechanism, a length detection mechanism and a diameter detection mechanism. Three sets of discharging assemblies are fixedly installed on the inner edge of the rotary workbench. According to the pin shaft length and diameter detection device, the rotary workbench drives the tool block to sequentially flow among the feeding station, the length detection station, the first material distribution station, the diameter detection station, the second material distribution station and the discharging station, all-directional and accurate detection of the length and the diameter of the pin shaft is achieved, and defective products and qualified products can be automatically sorted according to detection results; the detection precision is high, the speed is fast, and stability and reliability are strong.

Description

Technical Field

[0001] The invention relates to the technical field of dimension detection equipment, and in particular to a device for continuously detecting the diameter and length of a pin shaft. Background Art

[0002] The pin is a commonly used component. Small-sized pins are usually sintered from alloy powder (such as Figure 1 As shown in the figure); Pins are often used as fasteners at the connection between two parts, so the size requirements of the pins are relatively strict.

[0003] Chinese patent CN212806831U discloses a pin size detection device, including a base plate, a motor, a placement cylinder, a length detection mechanism and a diameter detection mechanism; the device realizes simultaneous detection of the pin length and diameter through the cooperation of various components; however, the pin can only be sold after passing the quality inspection, and the device is difficult to meet the needs of batch and continuous pin size detection, and the detection of the pin diameter and size is not comprehensive enough, and the detection accuracy cannot be ensured.

[0004] Based on this, the present invention designs a device for continuously detecting the diameter and length of a pin shaft to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device for continuously detecting the diameter and length of a pin shaft.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A pin shaft diameter and length continuous detection device comprises a base and a rotating worktable arranged on the base; Six tooling blocks are evenly spaced and arranged in a circular array on the outer edge of the rotary worktable, and two limiting side plates are symmetrically arranged on both sides of each tooling block; the tooling block is slidably connected to the rotary worktable, and the limiting side plates are fixedly connected to the rotary worktable; a V-shaped material placement groove is provided at the upper end of the tooling block; The base is fixedly mounted with a first bracket, a second bracket and a third bracket, and a feeding mechanism, a length detection mechanism and a diameter detection mechanism are respectively arranged on the first bracket, the second bracket and the third bracket; three groups of discharging components are fixedly mounted on the inner edge of the rotating worktable; A stopper is fixedly installed on the part of the tooling block located on the upper side of the rotary workbench, and a universal ball is fixedly installed on the part of the tooling block located on the lower side of the rotary workbench; a slide rail is fixedly installed on the base, and the universal ball is rollingly connected to the slide rail.

[0007] Furthermore, the slide rail is composed of a low section and a high section, and the high section is higher than the low section.

[0008] Furthermore, the discharging assembly includes a first cylinder and a push plate. The first cylinder is fixedly installed on the upper side of the rotating worktable. The output end of the first cylinder is fixedly installed with a push plate. A through groove for plugging the push plate is opened on the top of the tooling block; the end of the push plate close to the tooling block is set as a slope.

[0009] Furthermore, the feeding mechanism includes a feeding side plate, a temporary storage slot, a movable frame, a second cylinder, a third cylinder and a storage frame. The feeding side plate is fixedly installed on the top of the first bracket, and the space between the feeding side plates constitutes the temporary storage slot; the storage frame is arranged on the upper side of the feeding side plate, and the movable frame is arranged on the lower side of the feeding side plate; the second cylinder and the third cylinder are fixedly connected to the first bracket; the output end of the second cylinder is fixedly connected to the movable frame; the output end of the third cylinder is fixedly connected to the storage frame.

[0010] Furthermore, the length detection mechanism includes a first parallel cylinder, a first clamp, a clamp block and a driving roller. A pneumatic slide is arranged on the top of the second bracket, the movable end of the pneumatic slide is fixedly mounted with the first parallel cylinder, and the output end of the first parallel cylinder is arranged with the first clamp; a clamp block which cooperates with the holes on both sides of the pin shaft is arranged on the inner side of the first clamp, and a pressure sensor is arranged in the clamp block; the driving roller is rotatably installed on the top of the second bracket and aligned with the pin shaft.

[0011] Furthermore, the diameter detection mechanism includes a transverse servo linear module, a second parallel cylinder, a second clamp, a top block, a third parallel cylinder and a third clamp; a pneumatic slide is fixedly installed on the top of the third bracket, a transverse servo linear module is fixedly installed on the movable end of the pneumatic slide, a second parallel cylinder is fixedly installed on the movable end of the transverse servo linear module, a second parallel cylinder is fixedly installed on the movable end of the transverse servo linear module, a second clamp is arranged at the output end of the second parallel cylinder; a top block for plugging into the holes on both sides of the pin shaft is rotatably installed on the inner side of the second clamp; the third parallel cylinder is fixedly installed on the top of the third bracket, a third clamp is arranged at the output end of the third parallel cylinder; a pressure sensor is arranged on the inner side of the third clamp.

[0012] Furthermore, the upper end of the limiting side plate is provided with an inclined surface which is conducive to the pin shaft rolling into the V-shaped material placement groove.

[0013] Furthermore, the material storage frame is configured to be a trapezoidal shape that is narrow at the bottom and wide at the top.

[0014] Furthermore, the top block is configured to be conical.

[0015] Furthermore, the driving roller and the top block are driven by a stepper motor.

[0016] The present invention has the following technical effects: In the present invention, the rotary worktable drives the tooling block to flow sequentially among the feeding station, the length detection station, the first material separation station, the diameter detection station, the second material separation station and the discharging station, thereby realizing all-round and accurate detection of the length and diameter of the pin shaft, and automatically sorting defective products and qualified products according to the detection results; the detection process is continuous and can be suitable for batch pin shaft detection work, with high precision, fast speed, strong stability and reliability, and effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural stereogram of the pin shaft; Figure 2 A three-dimensional diagram of a pin shaft diameter and length continuous detection device of the present invention; Figure 3 It is a right view of a pin shaft diameter and length continuous detection device of the present invention; Figure 4 A three-dimensional diagram of the rotary table and its related parts of the present invention; Figure 5 for Figure 4 A perspective view of the rotating table with part of the worktable hidden; Figure 6 for Figure 5 The enlarged view of point A in the middle; Figure 7 A three-dimensional diagram of the feeding mechanism of the present invention; Figure 8 is a three-dimensional diagram of the length detection mechanism of the present invention; Fig. 9 is a three-dimensional diagram of the diameter detection mechanism of the present invention; Fig.10 for Fig. 9 Enlarged view of point B in the middle.

[0019] The numbers in the figure represent: 100, base; 200, rotating worktable; 300, pin; 400, tooling block; 410, V-shaped material trough; 420, through slot; 430, stopper; 440, universal ball; 450, slide rail; 451, low section; 452, high section; 460, limit side plate; 500, discharge assembly; 510, first cylinder; 520, push plate; 600, pneumatic slide; 700, first bracket; 710, feeding side plate; 720 , temporary storage slot; 730, movable frame; 740, second cylinder; 750, third cylinder; 760, storage frame; 800, second bracket; 810, first parallel cylinder; 820, first clamp; 830, clamping block; 840, driving roller; 900, third bracket; 910, lateral servo linear module; 920, second parallel cylinder; 930, second clamp; 940, top block; 950, third parallel cylinder; 960, third clamp. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] Example 1

[0023] Please refer to the instruction manual Figure 1-6 , a pin shaft diameter and length continuous detection device, comprising a base 100 and a rotating table 200 arranged on the base 100; Six tooling blocks 400 are evenly spaced and arranged in a circular array on the outer edge of the rotating worktable 200, and two limiting side plates 460 are symmetrically arranged on both sides of each tooling block 400; the tooling block 400 is slidably connected to the rotating worktable 200, and the limiting side plates 460 are fixedly connected to the rotating worktable 200; The rotating worktable 200 is provided with a feeding station, a length detection station, a first material separation station, a diameter detection station, a second material separation station and a discharging station in a circular array at equal intervals, and each station is distributed counterclockwise on the rotating worktable 200, and the feeding station is located directly behind the rotating worktable 200; The tooling block 400 has a V-shaped material placement groove 410 at its upper end, and the upper end of the limiting side plate 460 is provided with an inclined surface that is conducive to the pin shaft 300 rolling into the V-shaped material placement groove 410; the V-shaped material placement groove 410 and the limiting side plate 460 cooperate to realize the positioning of the pin shaft 300, ensuring that the pin shaft 300 at its top does not deviate when the tooling block 400 moves, which facilitates the operation of the pin shaft 300 in each process; The base 100 is fixedly mounted with a first bracket 700, a second bracket 800 and a third bracket 900, which are respectively located at a feeding station, a length detection station and a diameter detection station; the first bracket 700, the second bracket 800 and the third bracket 900 are respectively provided with a feeding mechanism, a length detection mechanism and a diameter detection mechanism; three groups of discharging components 500 are fixedly mounted on the inner edge of the rotating worktable 200, which are respectively located at a first material discharging station, a second material discharging station and a discharging station; The part of the tooling block 400 located on the upper side of the rotating worktable 200 is fixedly installed with a stopper 430, and the part of the tooling block 400 located on the lower side of the rotating worktable 200 is fixedly installed with a universal ball 440; a slide rail 450 is fixedly installed on the base 100, and the universal ball 440 is rollingly connected to the slide rail 450; The slide rail 450 is composed of a low section 451 and a high section 452. The high section 452 is higher than the low section 451. The low section 451 and the high section 452 are respectively located at the length detection station and the diameter detection station. When the universal ball 440 rolls on the high section 452, the tooling block 400 is lifted up to lift the pin 300, which is convenient for the detection of the pin 300. When the universal ball 440 rolls on the low section 451, the tooling block 400 is reset under the action of gravity, and the stopper 430 limits the vertical displacement of the tooling block 400. The limiting side plate 460 and the V-shaped material placement groove 410 cooperate to recalibrate the position of the pin 300. In the present invention, the rotary table 200 rotates a certain distance each time to make the tooling block 400 flow between each station in turn; at the feeding station, the feeding mechanism conveys the pin shaft 300 to the tooling block 400, and the limiting side plate 460 and the V-shaped material placement groove 410 cooperate to realize the positioning tooling of the pin shaft 300; at the length detection station, the length detection mechanism performs a full range detection on the length of the pin shaft 300 and marks the defective; at the first material distribution station, the discharging component 500 ejects the defective pin shaft 300 from the tooling block 400; at the diameter detection station, the diameter detection mechanism performs a full range detection on the diameter of the pin shaft 300 and marks the defective; at the second material distribution station, the discharging component 500 ejects the defective pin shaft 300 from the tooling block 400; at the discharging station, the discharging component 500 ejects the qualified pin shaft 300 from the tooling block 400; repeat the above steps; In the present invention, the rotating worktable 200 drives the tooling block 400 to flow sequentially among the feeding station, the length detection station, the first material separation station, the diameter detection station, the second material separation station and the discharging station, thereby realizing a comprehensive and accurate detection of the length and diameter of the pin shaft 300, and automatically sorting defective products and qualified products according to the detection results; the detection process is continuous and can be applicable to batch detection of the pin shaft 300, with high precision, fast speed, strong stability and reliability, and effectively improving production efficiency.

[0024] The discharging assembly 500 includes a first cylinder 510 and a push plate 520. The first cylinder 510 is fixedly installed on the upper side of the rotating worktable 200. The push plate 520 is fixedly installed on the output end of the first cylinder 510. A through groove 420 for plugging in the push plate 520 is provided on the top of the tooling block 400. The end of the push plate 520 close to the tooling block 400 is set as an inclined surface. The output end of the first cylinder 510 extends to drive the push plate 520 to be inserted into the through groove 420 of the tooling block 400. The pin shaft 300 will be disengaged from the V-shaped material groove 410 under the push of the inclined surface of the push plate 520, thereby realizing the discharging operation of the pin shaft 300.

[0025] Example 2

[0026] like Figure 7 As shown, as a preferred embodiment of the present invention, the feeding mechanism includes a feeding side plate 710, a temporary storage groove 720, a movable frame 730, a second cylinder 740, a third cylinder 750 and a storage frame 760. The feeding side plate 710 is fixedly installed on the top of the first bracket 700, and the space between the feeding side plates 710 constitutes the temporary storage groove 720; the storage frame 760 is arranged on the upper side of the feeding side plate 710, and the movable frame 730 is arranged on the lower side of the feeding side plate 710; the second cylinder 740 and the third cylinder 750 are fixedly connected to the first bracket 700; the output end of the second cylinder 740 is fixedly connected to the movable frame 730; the output end of the third cylinder 750 is fixedly connected to the storage frame 760; the storage frame 760 is arranged in a trapezoidal shape with a narrow bottom and a wide top; In the present invention, the third cylinder 750 drives the material storage frame 760 to move back and forth, so that the pin shaft 300 in the material storage frame 760 will continuously fall into the temporary storage groove 720. When the inner side of the movable frame 730 is aligned with the temporary storage groove 720, the pin shaft 300 in the temporary storage groove 720 will pass through the movable frame 730 and fall on the tooling block 400. When the inner side of the movable frame 730 is misaligned with the temporary storage groove 720, the pin shaft 300 in the temporary storage groove 720 will be blocked by the movable frame 730, thereby controlling the movement of the movable frame 730 by the second cylinder 740 to achieve the operation of accurately controlling the feeding of the pin shaft 300.

[0027] Example 3

[0028] like Figure 8As shown, as a preferred embodiment of the present invention, the length detection mechanism includes a first parallel cylinder 810, a first clamping jaw 820, a clamping block 830 and a driving roller 840, a pneumatic slide 600 is arranged on the top of the second bracket 800, the first parallel cylinder 810 is fixedly installed on the moving end of the pneumatic slide 600, and the first clamping jaw 820 is arranged on the output end of the first parallel cylinder 810; the inner side of the first clamping jaw 820 is provided with a clamping block 830 that is plugged into the holes on both sides of the pin shaft 300, and a pressure sensor is arranged in the clamping block 830; the driving roller 840 is rotatably installed on the top of the second bracket 800 and aligned with the pin shaft 300; the driving roller 840 is driven by a stepping motor; In the present invention, when the tooling block 400 moves to the length detection station, the tooling block 400 lifts the pin shaft 300 to expose both ends of the pin shaft 300, and the pneumatic slide 600 drives the first parallel cylinder 810 to move vertically downward to the set position, and then the first clamping jaw 820 of the first parallel cylinder 810 is closed, and the first clamping jaw 820 clamps the pin shaft 300 through the clamping block 830, and the pneumatic slide 600 drives the first parallel cylinder 810 to reset. At this time, the driving roller 840 contacts the pin shaft 300, and the stepping motor drives the driving roller 840 to contact the pin shaft 300. The movable roller 840 rotates to drive the pin 300 to rotate. The length of the pin 300 is determined by judging whether the reading of the pressure sensor in the clamping block 830 is within the set range. If the reading is greater than or less than the set range, the pin 300 is marked as defective. After the detection is completed, the pin 300 is put back on the tooling block 400. The present invention realizes all-round detection of the length of the pin 300 by rotating the pin 300 and reading the pressure sensor reading to ensure the accuracy of the detection result.

[0029] Example 4

[0030] like Fig. 9 and 10 As shown, as a preferred embodiment of the present invention, the diameter detection mechanism includes a transverse servo linear module 910, a second parallel cylinder 920, a second clamping jaw 930, a top block 940, a third parallel cylinder 950 and a third clamping jaw 960, the top of the third bracket 900 is fixedly installed with a pneumatic slide 600, the moving end of the pneumatic slide 600 is fixedly installed with a transverse servo linear module 910, the moving end of the transverse servo linear module 910 is fixedly installed with a second parallel cylinder 920, and the output end of the second parallel cylinder 920 is provided with a second clamping jaw 930; the inner side of the second clamping jaw 930 is rotatably installed with a conical top block 940 for plugging with the holes on both sides of the pin shaft 300; the top block 940 is driven by a stepper motor; the third parallel cylinder 950 is fixedly installed on the top of the third bracket 900, and the output end of the third parallel cylinder 950 is provided with a third clamping jaw 960; the inner side of the third clamping jaw 960 is provided with a pressure sensor; In the present invention, when the tooling block 400 moves to the diameter detection station, the tooling block 400 lifts the pin shaft 300 to expose both ends of the pin shaft 300, and the pneumatic slide 600 drives the lateral servo linear module 910 to move vertically downward to the set position, and then the second clamping jaw 930 of the second parallel cylinder 920 is closed, and the second clamping jaw 930 clamps the pin shaft 300 through the top block 940, and the pneumatic slide 600 drives the lateral servo linear module 910 to reset. At this time, the pin shaft 300 is located on the inner side of the second clamping jaw 930; the stepper motor drives the top block 940 to rotate to drive the pin shaft 300 to rotate, and the third parallel cylinder 950 drives the third clamping jaw 9 60 is closed to clamp the pin 300, and the lateral servo linear module 910 drives the second parallel cylinder 920 to move horizontally slowly. The diameter of the pin 300 is determined by judging whether the reading of the pressure sensor on the inner side of the third clamp 960 is within the set range. If the reading is greater than or less than the set range, the pin 300 is marked as a defective product; after the inspection is completed, the pin 300 is put back on the tooling block 400; the present invention obtains the diameter data of different parts of the pin 300 by rotating the pin 300 and moving the pin 300 horizontally, thereby realizing all-round inspection of the diameter of the pin 300 and ensuring the accuracy of the inspection result.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pin shaft diameter and length continuous detection device, comprising a base (100) and a rotating worktable (200) arranged on the base (100), characterized in that: Six tooling blocks (400) are evenly spaced and arranged in a circular array on the outer edge of the rotary worktable (200), and two limiting side plates (460) are symmetrically arranged on both sides of each tooling block (400); the tooling block (400) is slidably connected to the rotary worktable (200), and the limiting side plates (460) are fixedly connected to the rotary worktable (200); a V-shaped material placement groove (410) is provided at the upper end of the tooling block (400); The base (100) is fixedly mounted with a first bracket (700), a second bracket (800) and a third bracket (900); a feeding mechanism, a length detection mechanism and a diameter detection mechanism are respectively arranged on the first bracket (700), the second bracket (800) and the third bracket (900); three groups of discharge assemblies (500) are fixedly mounted on the inner edge of the rotating worktable (200); A stopper (430) is fixedly mounted on the part of the tooling block (400) located on the upper side of the rotating worktable (200), and a universal ball (440) is fixedly mounted on the part of the tooling block (400) located on the lower side of the rotating worktable (200); a slide rail (450) is fixedly mounted on the base (100), and the universal ball (440) is rollingly connected to the slide rail (450).

2. The pin shaft diameter and length continuous detection device according to claim 1 is characterized in that: The slide rail (450) is composed of a low-position section (451) and a high-position section (452), and the high-position section (452) is higher than the low-position section (451).

3. The pin shaft diameter and length continuous detection device according to claim 2, characterized in that: The discharging assembly (500) comprises a first cylinder (510) and a push plate (520); the first cylinder (510) is fixedly mounted on the upper side of the rotating worktable (200); the push plate (520) is fixedly mounted on the output end of the first cylinder (510); a through slot (420) for plugging the push plate (520) is provided on the top of the tooling block (400); and one end of the push plate (520) close to the tooling block (400) is arranged as an inclined surface.

4. The pin shaft diameter and length continuous detection device according to claim 3 is characterized in that: The feeding mechanism comprises a feeding side plate (710), a temporary storage slot (720), a movable frame (730), a second cylinder (740), a third cylinder (750) and a material storage frame (760); the feeding side plate (710) is fixedly mounted on the top of the first bracket (700), and the space between the feeding side plates (710) constitutes the temporary storage slot (720); the material storage frame (760) is arranged on the upper side of the feeding side plate (710), and the movable frame (730) is arranged on the lower side of the feeding side plate (710); the second cylinder (740) and the third cylinder (750) are fixedly connected to the first bracket (700); the output end of the second cylinder (740) is fixedly connected to the movable frame (730); and the output end of the third cylinder (750) is fixedly connected to the material storage frame (760).

5. The pin shaft diameter and length continuous detection device according to claim 4, characterized in that: The length detection mechanism comprises a first parallel cylinder (810), a first clamping jaw (820), a clamping block (830) and a driving roller (840); a pneumatic slide (600) is arranged on the top of the second bracket (800); the first parallel cylinder (810) is fixedly mounted on the movable end of the pneumatic slide (600); the first clamping jaw (820) is arranged on the output end of the first parallel cylinder (810); a clamping block (830) which is plugged into holes on both sides of the pin shaft (300) is arranged on the inner side of the first clamping jaw (820); a pressure sensor is arranged in the clamping block (830); and the driving roller (840) is rotatably mounted on the top of the second bracket (800) and aligned with the pin shaft (300).

6. The pin shaft diameter and length continuous detection device according to claim 5, characterized in that: The diameter detection mechanism comprises a transverse servo linear module (910), a second parallel cylinder (920), a second clamping jaw (930), a top block (940), a third parallel cylinder (950) and a third clamping jaw (960); a pneumatic slide table (600) is fixedly mounted on the top of the third bracket (900); a transverse servo linear module (910) is fixedly mounted on the movable end of the pneumatic slide table (600); and a third pneumatic slide table (600) is fixedly mounted on the movable end of the pneumatic slide table (600). Two parallel cylinders (920), the output end of the second parallel cylinder (920) is provided with a second clamping jaw (930); a top block (940) for plugging into holes on both sides of the pin shaft (300) is rotatably installed on the inner side of the second clamping jaw (930); a third parallel cylinder (950) is fixedly installed on the top of the third bracket (900), the output end of the third parallel cylinder (950) is provided with a third clamping jaw (960); a pressure sensor is provided on the inner side of the third clamping jaw (960).

7. The pin shaft diameter and length continuous detection device according to claim 6, characterized in that: The upper end of the limiting side plate (460) is provided with an inclined surface which is conducive to the pin shaft (300) rolling into the V-shaped material placement groove (410).

8. The pin shaft diameter and length continuous detection device according to claim 7, characterized in that: The material storage frame (760) is configured to be a trapezoidal shape that is narrow at the bottom and wide at the top.

9. The pin shaft diameter and length continuous detection device according to claim 8, characterized in that: The top block (940) is configured to be conical.

10. The pin shaft diameter and length continuous detection device according to claim 8, characterized in that: The driving roller (840) and the top block (940) are both driven by a stepping motor.

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