Mechanical gripper device for universal joint grading detection equipment

Abstract

The invention relates to a mechanical gripper device, in particular to a mechanical gripper device for universal joint grading detection equipment, which comprises a base, a Z-axis linear module for the base to reciprocate up and down and an X-axis linear module for the base to reciprocate back and forth, the base is provided with a plurality of clamping jaws used for picking up the universal joint to the mandrel, and after the universal joint is arranged in the mandrel in a sleeving mode through the clamping jaws, the clamping jaws release the universal joint and elastically press the universal joint through cooperation of the elastic device. When the clamping jaw on the mechanical gripper device places the universal joint on the mandrel and then releases the universal joint, the elastic device elastically presses the universal joint, the improved mechanical gripper device can be completely qualified for detection work of the universal joint, it is possible to detect automatic equipment, and the universal joint detection device further has the advantages of being simple in structure, convenient to machine, easy to assemble and high in practicability.

Description

Technical Field

[0001] The invention relates to a mechanical claw device, in particular to a mechanical claw device used for universal joint grading detection equipment. Background Art

[0002] With the rapid development of the automobile industry, automobiles are gradually developing from traditional gasoline vehicles to electric vehicles. Since electric vehicles have no noise generated by engines, the interior is relatively quiet when driving. Too large a product gap will cause abnormal noise, so the matching gap of the product is particularly important. Traditional spline grading uses a spline grading shaft and is manually graded by each worker. The force used by each worker is different, which may also cause deviation in the sorting gear. To build such automated equipment, it is not enough to rely on the previous mechanical claws. The mechanical claws cannot accurately allow the universal joint to be put on the core shaft. Therefore, how to build a mechanical claw device for a fully automatic detection equipment is the technical problem we need to solve now. Summary of the invention

[0003] In view of the deficiencies in the existing technology, the present invention provides a mechanical claw device for a universal joint grading detection device.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a mechanical claw device for a universal joint grading detection device, characterized in that the mechanical claw device includes a base and a Z-axis linear module for the base to reciprocate up and down and an X-axis linear module for the base to reciprocate forward and backward, and the base is provided with a plurality of clamps for picking up the universal joint to the core shaft, and the base is also provided with an elastic device for forcing the universal joint to move in the direction of the core shaft. When the clamps put the universal joint into the core shaft, the clamps release the universal joint and press on the universal joint through the elastic cooperation of the elastic device.

[0005] The elastic device comprises a pressing block for pushing the universal joint, and the pressing block is arranged at the center position of the base.

[0006] The base is provided with a connecting rod for limiting the reciprocating motion of the pressing block, and the connecting rod is provided with a spring for forcing the pressing block to move in the direction of the universal joint. The pressing block is pressed on the universal joint through the matching elasticity of the spring.

[0007] The core shaft comprises a straight portion for convenient placement into the universal joint and a detection portion with a taper, wherein the diameter of the straight portion is smaller than the diameter of the detection portion.

[0008] The detection part is provided with a plurality of grooves on the side to prevent the core shaft and the universal joint from rotating relative to each other. The universal joint is provided with teeth matching the grooves. The universal joint and the core shaft are locked in the grooves through the teeth to achieve rotation limitation.

[0009] A first driving mechanism for rotating the mandrel is provided on one side of the mandrel, and the groove is engaged with the teeth on the universal joint as the mandrel rotates.

[0010] The Z-axis linear module is provided with a first connecting seat, and the base is provided with a second connecting seat rotatably matched with the first connecting seat. The base is rotatably connected to the Z-axis linear module through the matching of the first connecting seat and the second connecting seat.

[0011] Beneficial effects of the invention: an elastic device is arranged on the mechanical claw device. When the clamping claw on the mechanical claw device places the universal joint on the core shaft and then releases it, the elastic device elastically presses the universal joint. The improved mechanical claw device is fully capable of performing the detection work of the universal joint, making it possible to detect automated equipment. The invention also has the characteristics of simple structure, easy processing and easy assembly, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the mandrel and the mechanical claw device of the present invention when the clamping claw inserts the universal joint into the mandrel;

[0014] Figure 3 It is a structural schematic diagram of the mandrel and the mechanical claw device of the present invention when the claw releases the universal joint;

[0015] Figure 4 It is a structural schematic diagram of the mechanical claw device of the present invention;

[0016] Figure 5 It is a structural schematic diagram of the mandrel and the push sorting device of the present invention, in which the push plate pushes the universal joint into the mandrel;

[0017] Figure 6 It is a structural schematic diagram of the mandrel and the push-sorting device of the present invention when the push plate pushes the universal joint out of the mandrel;

[0018] Figure 7 It is a structural schematic diagram of the push sorting device of the present invention;

[0019] Figure 8 It is a structural schematic diagram of the universal joint of the present invention. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 8As shown, a mechanical claw device for a universal joint grading detection device includes a core shaft 200 for detecting a universal joint 100, the core shaft 200 is formed into a plurality of gear intervals by setting a taper and placing it horizontally, one side of the core shaft 200 is provided with a mechanical claw device 300 for sleeve the universal joint 100 on the core shaft 200, and also includes a pushing and sorting device 400 for pushing the universal joint 100 in and taking out the core shaft 200, one side of the pushing and sorting device 400 is provided with a conveying mechanism 500 for cooperating with sorting, the universal joint 100 in each gear interval is sorted and collected by the cooperation of the pushing and sorting device 400 and the conveying mechanism 500, the conveying mechanism 500 can adopt a conveyor belt mechanism, the conveyor belt mechanism is a relatively mature technology on the market, and is not described in detail here, and the specific work flow is detailed below.

[0021] The pushing and sorting device 400 includes a push plate 410 which reciprocates along the axial direction of the core shaft 200 and is used to move the universal joint 100. The universal joint 100 is pushed in and taken out on the core shaft 200 through the cooperation of the push plate 410. The universal joint 100 is movable on the core shaft 200 through the push plate 410. The core shaft 200 is provided with a plurality of gear intervals. The push plate 410 determines which specification of the universal joint 100 belongs to by the distance of the universal joint 100 on the core shaft 200 when moving the universal joint. The manufacture of the universal joint 100 has processing tolerances, and a plurality of gear intervals are designed according to the size of these tolerances for classification. The detection principle between the core shaft 200 and the universal joint 100 is a relatively mature technology on the market and will not be elaborated on here.

[0022] The push plate 410 includes a left plate 411 and a right plate 412 that move toward and away from each other. The left plate 411 and the right plate 412 move toward and away from each other to form a hole 420 that is sleeved outside the core shaft 200 and is used to move the universal joint 100, and the positions of both sides of the universal joint 100 are switched by moving away from each other. There are actually many structures and activity forms of the push plate 410. It is only necessary to push the universal joint 100 into the core shaft 200 and then pull it out. The present application preferably adopts the structure of the left plate 411 and the right plate 412 because the hole 420 is basically coaxial with the core shaft 200, which makes the movement of the universal joint 100 on the core shaft 200 smoother.

[0023] A discharge chute 430 for connecting to the conveying mechanism 500 is fixed on one side of the push plate 410. When the universal joint 100 exits the core shaft 200 through the push plate 410, the universal joint 100 enters the conveying mechanism 500 through the discharge chute 430. The discharge chute 430 has a certain slope, which makes it convenient for the universal joint 100 to reach the conveying mechanism 500 under the action of gravity.

[0024] The conveying mechanism 500 is arranged on the machine platform 600. One side of the machine platform 600 is provided with a plurality of discharge ports 610 for collecting universal joints 100 of different gears. The machine platform 600 is provided with a guide plate 620 which cooperates with the conveying mechanism 500 and guides the universal joint 100 to enter the discharge port 610. The guide plate 620 is rotatably connected to the machine platform 600. Universal joints 100 of different gears are collected from different discharge ports 610 through the cooperation of the conveying mechanism 500 and the guide plate 620. When the machine confirms which gear the universal joint 100 is in, the guide plate 620 rotates to the conveying mechanism 500 to guide the universal joint 100.

[0025] The mechanical claw device 300 includes a base 310, a Z-axis linear module 320 for the base 310 to reciprocate up and down, and an X-axis linear module 330 for the base 310 to reciprocate forward and backward. The base 310 is provided with a plurality of clamps 311 for picking up the universal joint 100. The base 310 is also provided with an elastic device 340 for forcing the universal joint 100 to move toward the core shaft 200. When the clamp 311 inserts the universal joint 100 into the core shaft 200, the clamp 311 releases the universal joint 100 and presses the universal joint 100 through the elastic cooperation of the elastic device 340. The Z-axis linear module 320 and the X-axis linear module 330 can adopt common reciprocating motion devices such as guide rails. These are relatively mature technologies on the market and no further structural description is given here. The plurality of clamps 311 achieve the grasping and releasing of objects by closing and separating.

[0026] The elastic device 340 includes a pressure block 341 for pushing the universal joint 100. The pressure block 341 is arranged at the center position of the base 310. The base 310 is provided with a connecting rod 342 for limiting the reciprocating motion of the pressure block 341. The connecting rod 342 is provided with a spring 343 for forcing the pressure block 341 to move in the direction of the universal joint 100. The pressure block 341 is pressed against the universal joint 100 by the elastic cooperation of the spring 343, and nuts can be screwed on both ends of the connecting rod 342.

[0027] The core shaft 200 includes a straight portion 210 for convenient insertion into the universal joint 100 and a detection portion 220 with a taper. The diameter of the straight portion 210 is smaller than the diameter of the detection portion 220. The detection portion 220 is provided with a plurality of grooves 221 on the side to prevent the core shaft 200 and the universal joint 100 from rotating relative to each other. The universal joint 100 is provided with teeth 110 that match the grooves 221. The universal joint 100 and the core shaft 200 are limited in rotation by being inserted into the grooves 221 through the teeth 110. The straight portion 210 is mainly smooth to facilitate the insertion of the universal joint 100.

[0028] A first driving mechanism 230 for rotating the core shaft 200 is provided on one side of the core shaft 200. The groove 221 is inserted into the tooth 110 on the universal joint 100 as the core shaft 200 rotates. The groove 221 can be aligned with the tooth 110 without rotating the core shaft 200, but there is a certain error rate. The purpose of rotating the core shaft 200 is to allow the tooth 110 to be fully inserted into the groove 221. The first driving mechanism 230 can adopt a servo motor, etc.

[0029] The Z-axis linear module 320 is provided with a first connecting seat 321, and the base 310 is provided with a second connecting seat 312 rotatably matched with the first connecting seat 321. The base 310 is rotatably connected to the Z-axis linear module 320 through the cooperation of the first connecting seat 321 and the second connecting seat 312. If the base 310 does not rotate, the universal joint 100 must be placed upright. After the base 310 is rotated, the universal joint 100 can be placed directly on the desktop. A material box 630 specifically for placing the universal joint 100 can be placed on the desktop. A groove 631 for limiting the universal joint 100 is provided in the material box 630. The universal joint 100 is placed according to the position of the groove 631. The rotating base 310 vertically puts the flat universal joint 100 onto the core shaft 200, and the rotation of the base 310 is more practical.

[0030] Workflow:

[0031] First, the universal joint 100 is arranged in the material box 630, and the mechanical claw device 300 grabs the universal joint 100 and puts the universal joint 100 on the straight part 210 of the core shaft 200. At this time, the clamping claw 311 is loosened and the pressure plate supports the universal joint 100. At this time, the groove 221 is not necessarily aligned with the tooth 110. The first driving mechanism 230 forces the core shaft 200 to rotate, and the groove 221 also rotates accordingly. Finally, the tooth 110 is stuck in the groove 221, and then the left plate 411 and the right plate 412 are closed to push the universal joint 100 deep into the core shaft 200. When it is pushed to After a certain gear interval is reached and confirmed as the gear interval, the left plate 411 and the right plate 412 are separated, and the push plate 410 moves to the back of the universal joint 100 under the action of the second driving mechanism 413, and the left plate 411 and the right plate 412 are closed again to push the universal joint 100 out of the core shaft 200, and the universal joint 100 falls into the unloading chute 430. At this time, the guide plate 620 is opened to connect the unloading chute 430 and the discharge port 610, and the universal joint 100 is discharged from the discharge port 610 through the cooperation of the conveying mechanism 500 and the guide plate 620, waiting for the next round of operation.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, simple changes and substitutions by ordinary technicians in the field are within the protection scope of the present invention.

Claims

1. A mechanical claw device for a universal joint grading detection device, characterized in that: The mechanical claw device (300) comprises a base (310), a Z-axis linear module (320) for the base (310) to reciprocate up and down, and an X-axis linear module (330) for the base (310) to reciprocate forward and backward. The base (310) is provided with a plurality of clamping claws (311) for picking up the universal joint (100) to the core shaft (200). The base (310) is also provided with an elastic device (340) for forcing the universal joint (100) to move in the direction of the core shaft (200). When the clamping claw (311) inserts the universal joint (100) into the core shaft (200), the clamping claw (311) releases the universal joint (100) and is pressed on the universal joint (100) through the matching elasticity of the elastic device (340).

2. A mechanical claw device for a universal joint grading detection device as claimed in claim 1, characterized in that: The elastic device (340) comprises a pressing block (341) for pushing the universal joint (100), and the pressing block (341) is arranged at the center position of the base (310).

3. A mechanical claw device for a universal joint grading detection device as claimed in claim 2, characterized in that: The base (310) is provided with a connecting rod (342) for limiting the reciprocating motion of the pressure block (341), and the connecting rod (342) is provided with a spring (343) for forcing the pressure block (341) to move in the direction of the universal joint (100). The pressure block (341) is pressed against the universal joint (100) by the elasticity of the spring (343).

4. A mechanical claw device for a universal joint grading detection device as claimed in claim 1, characterized in that: The core shaft (200) comprises a straight portion (210) for convenient placement in the universal joint (100) and a detection portion (220) with a taper, wherein the diameter of the straight portion (210) is smaller than the diameter of the detection portion (220).

5. A mechanical claw device for a universal joint grading detection device as claimed in claim 4, characterized in that: The detection portion (220) is provided with a plurality of grooves (221) on the side thereof for preventing the core shaft (200) and the universal joint (100) from rotating relative to each other. The universal joint (100) is provided with teeth (110) that match the grooves (221). The universal joint (100) and the core shaft (200) are locked into the grooves (221) through the teeth (110) to achieve rotation limitation.

6. A mechanical claw device for a universal joint grading detection device as claimed in claim 4, characterized in that: A first driving mechanism (230) for rotating the core shaft (200) is provided on one side of the core shaft (200), and the groove (221) is engaged with the teeth (110) on the universal joint (100) as the core shaft (200) rotates.

7. A mechanical claw device for a universal joint grading detection device as claimed in any one of claims 1 to 6, characterized in that: The Z-axis linear module (320) is provided with a first connecting seat (321), and the base (310) is provided with a second connecting seat (312) rotatably matched with the first connecting seat (321). The base (310) is rotatably connected to the Z-axis linear module (320) through the matching of the first connecting seat (321) and the second connecting seat (312).

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