Constant velocity universal joint spline tooth bar spacing grading detection equipment

Abstract

The invention relates to a detection device, in particular to a constant velocity universal joint spline tooth rod spacing step-by-step detection device which comprises a mandrel used for detecting a universal joint, the mandrel is provided with a taper and is transversely arranged to form a plurality of gear intervals, and one side of the mandrel is provided with a mechanical claw device for sleeving the universal joint on the mandrel. The conveying mechanism, the mechanical claw device and the push plate sorting device are arranged on one side of the core shaft to form a whole set of automatic detection equipment for the universal joints, the equipment sorting strength is uniform, the situation that the strength is not uniform and the gears are wrongly sorted does not exist, the detection efficiency is improved, and the detection efficiency is improved. The multiple gear openings are formed, the equipment for sorting the gear can automatically judge that the products are placed at the corresponding gear openings, the situation that the products are placed mistakenly after grading is avoided, one person can manage multiple pieces of equipment, only manual feeding and discharging are needed, and full automation is completely achieved.

Description

Technical Field

[0001] The present invention relates to a detection device, and particularly to a detection device for grading the pitch of the spline teeth of a constant velocity universal joint Background Art

[0002] With the rapid development of the automotive industry, automobiles are gradually developing from traditional fuel vehicles to electric vehicles. Since there is no noise generated by the engine in electric vehicles, the interior is relatively quiet during driving. If the product clearance is too large, it will cause abnormal noise. Therefore, the mating clearance of the product is particularly important. In the traditional spline grading, a spline grading shaft is used for manual grading by each worker. Different workers may use different forces, which may also lead to deviation in the sorting grades. How to create a fully automatic detection device is the technical problem we need to solve currently. Summary of the Invention

[0003] Aiming at the existing technical deficiencies, the present invention provides a detection device for grading the pitch of the spline teeth of a constant velocity universal joint.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: a detection device for grading the pitch of the spline teeth of a constant velocity universal joint, characterized in that it includes a mandrel for detecting the universal joint. The mandrel forms a plurality of gear ranges by setting a taper and being horizontally arranged. On one side of the mandrel, there is a mechanical claw device for sleeving the universal joint on the mandrel. It also includes a pushing and sorting device for pushing the universal joint into and out of the mandrel. On one side of the pushing and sorting device, there is a conveying mechanism for cooperating with the sorting. The universal joints in each gear range are sorted and collected through the cooperation of the pushing and sorting device and the conveying mechanism.

[0005] The pushing and sorting device includes a push plate that reciprocates in the axial direction of the mandrel and is used to move the universal joint. The universal joint is pushed into and out of the mandrel through the cooperation of the push plate.

[0006] The push plate includes a left plate and a right plate that move towards and away from each other. The left plate and the right plate form a hole sleeved outside the mandrel for moving the universal joint by moving towards each other, and switch the positions on both sides of the universal joint by moving away from each other.

[0007] One side of the push plate is fixed with a discharge chute for connecting the conveying mechanism. When the universal joint exits the mandrel through the push plate, the universal joint enters the conveying mechanism through the discharge chute.

[0008] The conveying mechanism is arranged on the machine table. There are several discharge ports on one side of the machine table for collecting universal joints in different gears. On the machine table, there is a guide plate that cooperates with the conveying mechanism and guides the universal joint into the discharge port. The guide plate is rotatably connected to the machine table. The universal joints in different gears are collected by different discharge ports through the cooperation of the conveying mechanism and the guide plate.

[0009] The mechanical claw device includes a base, a Z-axis linear module for the up-and-down reciprocating movement of the base, and an X-axis linear module for the front-and-back reciprocating movement of the base. A plurality of claws for picking up universal joints are provided on the base, and an elastic device for forcing the universal joint to move towards the mandrel is also provided on the base. When the claws fit the universal joint onto the mandrel, the claws release the universal joint and elastically press on the universal joint through the cooperation of the elastic device.

[0010] The elastic device includes a pressing block for pushing and pressing the universal joint. The pressing block is arranged at the central position of the base. A connecting rod for limiting the reciprocating movement of the pressing block is provided on the base, and a spring for forcing the pressing block to move towards the universal joint is provided on the connecting rod. The pressing block elastically presses on the universal joint through the cooperation of the spring.

[0011] The mandrel includes a straight portion for conveniently placing the universal joint and a tapered detection portion. The diameter of the straight portion is smaller than that of the detection portion. A plurality of grooves for preventing relative rotation between the mandrel and the universal joint are provided on the side of the detection portion, and teeth for cooperating with the grooves are provided on the universal joint. The universal joint and the mandrel achieve rotational limit by the teeth being caught in the grooves.

[0012] A first driving mechanism for rotating the mandrel is provided on one side of the mandrel, and the grooves are caught in the teeth on the universal joint as the mandrel rotates.

[0013] A first connecting seat is provided on the Z-axis linear module, and a second connecting seat for rotatably cooperating with the first connecting seat is provided on the base. The base is rotatably connected to the Z-axis linear module through the cooperation of the first connecting seat and the second connecting seat.

[0014] The beneficial effects of the present invention: The present invention provides a complete set of detection automation equipment for universal joints by arranging a conveying mechanism, a mechanical claw device, and a push plate sorting device on one side of the mandrel. The sorting force of the equipment is uniform, and there is no situation of misclassification due to uneven force. There are multiple gear openings, and the equipment can automatically determine which gear to put the sorted product into the corresponding gear opening, avoiding the situation of misplacing the products after grading. One person can manage multiple devices, and only manual feeding and discharging are required, fully realizing full automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a schematic structural diagram of the mandrel and the mechanical claw device of the present invention when the claws fit the universal joint onto the mandrel;

[0017] Figure 3 is a schematic structural diagram of the mandrel and the mechanical claw device of the present invention when the claws release the universal joint;

[0018] Figure 4 is a schematic structural diagram of the mechanical claw device of the present invention;

[0019] Figure 5 This is a schematic structural view of the mandrel and the pushing and sorting device of the present invention when the universal joint is pushed into the mandrel by the push plate;

[0020] Figure 6 This is a schematic structural view of the mandrel and the pushing and sorting device of the present invention when the universal joint is pushed out of the mandrel by the push plate;

[0021] Figure 7 This is a schematic structural view of the pushing and sorting device of the present invention;

[0022] Figure 8 This is a schematic structural view of the universal joint of the present invention. Specific embodiments

[0023] As Figures 1 - 8 shown, a constant velocity universal joint spline tooth bar pitch grading detection device includes a mandrel 200 for detecting a universal joint 100. The mandrel 200 forms a plurality of gear ranges by setting a taper and being horizontally arranged. On one side of the mandrel 200, there is a mechanical claw device 300 for sleeving the universal joint 100 on the mandrel 200. It also includes a pushing and sorting device 400 for pushing the universal joint 100 into and taking out the mandrel 200. On one side of the pushing and sorting device 400, there is a conveying mechanism 500 for cooperating with sorting. The universal joints 100 in each gear range are sorted and collected through the cooperation of the pushing and sorting device 400 and the conveying mechanism 500. The conveying mechanism 500 can adopt a conveyor belt mechanism, which is a relatively mature technology in the market and will not be elaborated too much here. The specific working process is described in detail below.

[0024] The pushing and sorting device 400 includes a push plate 410 that reciprocates in the axial direction of the mandrel 200 and is used to move the universal joint 100. The universal joint 100 is pushed into and taken out of the mandrel 200 through the cooperation of the push plate 410. The universal joint 100 moves on the mandrel 200 through the push plate 410. There are a plurality of gear ranges on the mandrel 200. The push plate 410 determines which specification of product the universal joint 100 belongs to by judging the distance on the mandrel 200 when moving the universal joint 100. The production of the universal joint 100 has machining tolerances, and multiple gear ranges are designed according to the sizes of these tolerances for classification. The detection principle between the mandrel 200 and the universal joint 100 is a relatively mature technology in the market and will not be elaborated too much here.

[0025] The push plate 410 includes a left plate 411 and a right plate 412 that move towards and away from each other. The left plate 411 and the right plate 412 form a hole 420 that sleeves outside the mandrel 200 and is used to move the universal joint 100 by moving towards each other. And the positions on both sides of the universal joint 100 are switched by moving away from each other. In fact, there are many structures and movement forms of the push plate 410. As long as the universal joint 100 is pushed into the mandrel 200 and then pulled out. In this application, the structural form of the left plate 411 and the right plate 412 is preferably adopted because the hole 420 is basically coaxially arranged with the mandrel 200, which makes the movement of the universal joint 100 on the mandrel 200 smoother.

[0026] A discharge chute 430 for connecting the conveying mechanism 500 is fixed on one side of the push plate 410. When the universal joint 100 exits the mandrel 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 facilitates the universal joint 100 to reach the conveying mechanism 500 under the action of gravity.

[0027] The conveying mechanism 500 is arranged on the machine table 600. A plurality of discharge ports 610 for collecting universal joints 100 of different gears are arranged on one side of the machine table 600. A guide plate 620 that cooperates with the conveying mechanism 500 and guides the universal joint 100 into the discharge port 610 is arranged on the machine table 600. The guide plate 620 is rotatably connected to the machine table 600. Universal joints 100 of different gears are collected by 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, at this time, the guide plate 620 rotates to the conveying mechanism 500 to guide the universal joint 100.

[0028] The mechanical claw device 300 includes a base 310, a Z-axis linear module 320 for reciprocating the base 310 up and down, and an X-axis linear module 330 for reciprocating the base 310 back and forth. A plurality of claws 311 for picking up the universal joint 100 are arranged on the base 310. An elastic device 340 for forcing the universal joint 100 to move towards the mandrel 200 is also arranged on the base 310. After the claws 311 sleeve the universal joint 100 onto the mandrel 200, the claws 311 release the universal joint 100 and elastically press on the universal joint 100 through the 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 will not be described in too much detail in terms of structure here. The plurality of claws 311 realize the grasping and releasing of objects by closing and separating.

[0029] The elastic device 340 includes a pressing block 341 for pressing the universal joint 100. The pressing block 341 is arranged at the central position of the base 310. A connecting rod 342 for limiting the reciprocating movement of the pressing block 341 is provided on the base 310. A spring 343 for forcing the pressing block 341 to move towards the universal joint 100 is provided on the connecting rod 342. The pressing block 341 is elastically pressed against the universal joint 100 through the cooperation of the spring 343. Nuts can be screwed onto both ends of the connecting rod 342.

[0030] The mandrel 200 includes a straight part 210 for conveniently inserting into the universal joint 100 and a detection part 220 with a taper. The diameter of the straight part 210 is smaller than that of the detection part 220. A plurality of grooves 221 for preventing relative rotation between the mandrel 200 and the universal joint 100 are provided on the side of the detection part 220. Teeth 110 for cooperating with the grooves 221 are provided on the universal joint 100. The rotation limit between the universal joint 100 and the mandrel 200 is achieved by the teeth 110 being snapped into the grooves 221. The straight part 210 is mainly smooth to facilitate the sleeving of the universal joint 100.

[0031] One side of the mandrel 200 is provided with a first driving mechanism 230 for rotating the mandrel 200. The grooves 221 are snapped into the teeth 110 on the universal joint 100 as the mandrel 200 rotates. It is also possible to align the grooves 221 with the teeth 110 without rotating the mandrel 200, but there is a certain error rate. The purpose of rotating the mandrel 200 is to fully insert the teeth 110 into the grooves 221. The first driving mechanism 230 can adopt a servo motor or the like.

[0032] A first connecting seat 321 is provided on the Z-axis linear module 320. A second connecting seat 312 for rotatably cooperating with the first connecting seat 321 is provided on the base 310. 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 has to be placed upright when being placed. After the base 310 rotates, the universal joint 100 can be directly placed on the table. A material box 630 for specifically placing the universal joint 100 can be placed on the table. A shaping 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 shaping groove 631. The rotating base 310 vertically sleevs the horizontally placed universal joint 100 onto the mandrel 200. The rotatability of the base 310 is more practical.

[0033] Workflow:

[0034] First, align the universal joint 100 in the material box 630. The mechanical claw device 300 grabs the universal joint 100 and slews the universal joint 100 onto the straight part 210 of the mandrel 200. At this time, the clamping jaw 311 releases and is replaced by a pressure plate to hold the universal joint 100. At this time, the groove 221 does not necessarily align with the tooth 110. The first driving mechanism 230 forces the mandrel 200 to rotate, and the groove 221 also rotates accordingly. Finally, the tooth 110 snaps into the groove 221. Then, the left plate 411 and the right plate 412 close together, pushing the universal joint 100 deeper into the mandrel 200. When it is pushed to a certain gear range and confirmed as this gear range, the left plate 411 and the right plate 412 separate. The push plate 410 moves to the back of the universal joint 100 under the action of the second driving mechanism 413. The left plate 411 and the right plate 412 close together again, pushing the universal joint 100 out of the mandrel 200. The universal joint 100 falls into the discharge chute 430. At this time, the guide plate 620 opens to connect the discharge chute 430 and the discharge port 610. 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.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, simple modifications and substitutions by ordinary technical personnel in the art are within the protection scope of the present invention.

Claims

1. A constant velocity universal joint spline gear bar spacing step detection device, characterized in that: The invention comprises a mandrel (200) for detecting a universal joint (100), wherein the mandrel (200) is formed into a plurality of gear intervals by setting a taper and being placed horizontally, a mechanical claw device (300) for sleeve the universal joint (100) on the mandrel (200) is provided on one side of the mandrel (200), and a push-sorting device (400) for pushing the universal joint (100) into and taking out the mandrel (200) is also provided, wherein a conveying mechanism (500) for matching sorting is provided on one side of the push-sorting device (400), and the universal joints (100) in each gear interval are sorted and collected by matching the push-sorting device (400) and the conveying mechanism (500).

2. A constant velocity universal joint spline gear bar spacing step detection device as claimed in claim 1, characterized in that: The push sorting device (400) comprises 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 of the core shaft (200) through the cooperation of the push plate (410).

3. A constant velocity universal joint spline gear bar spacing step detection device as claimed in claim 2, characterized in that: 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). The positions of the two sides of the universal joint (100) are switched by moving away from each other.

4. A constant velocity universal joint spline gear bar spacing step detection device as claimed in claim 3, characterized in that: A discharge chute (430) for connecting to a conveying mechanism (500) is fixed on one side of the push plate (410). When the universal joint (100) exits the mandrel (200) through the push plate (410), the universal joint (100) enters the conveying mechanism (500) through the discharge chute (430).

5. A constant velocity joint spline gear bar spacing step detection device as claimed in claim 4, characterized in that: The conveying mechanism (500) is arranged on a machine platform (600), and a plurality of discharge ports (610) for collecting universal joints (100) of different gears are arranged on one side of the machine platform (600). A guide plate (620) is arranged on the machine platform (600) to cooperate with the conveying mechanism (500) and guide the universal joint (100) to enter the discharge port (610). The guide plate (620) is rotatably connected to the machine platform (600), and universal joints (100) of different gears are collected by different discharge ports (610) through the cooperation of the conveying mechanism (500) and the guide plate (620).

6. A constant velocity joint spline gear bar spacing step detection device as claimed in any one of claims 1 to 5, 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). 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).

7. A constant velocity joint spline gear bar spacing step detection device as claimed in claim 6, characterized in that: 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 matching elasticity of the spring (343).

8. A constant velocity universal joint spline gear bar spacing step detection device as claimed in claim 7, 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), and a plurality of grooves (221) are provided on the side of the detection portion (220) for preventing the core shaft (200) and the universal joint (100) from rotating relative to each other, and teeth (110) are provided on the universal joint (100) for matching the grooves (221), and the universal joint (100) and the core shaft (200) are locked in the grooves (221) through the teeth (110) to achieve rotation limitation.

9. A constant velocity joint spline gear bar spacing step detection device as claimed in claim 8, 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.

10. A constant velocity joint spline gear bar spacing step detection device as claimed in claim 9, 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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