Alignment device for cylinder measurement and cylinder detection device

Abstract

The utility model provides an alignment device for cylinder measurement and a cylinder detection device provided with the alignment device. The alignment device comprises a transfer table, a feeding mechanism and a laser distance measuring sensor, the feeding mechanism obtains an air cylinder and places the air cylinder on the transfer table. The transfer table comprises a rotatable clamping piece, a middle cavity of the air cylinder is clamped on the clamping piece, and the middle cavity is a cavity for containing a piston. The laser distance measuring sensor is arranged on one side of the transfer table; a laser path of the laser distance measuring sensor is in contact with a convex part of the air cylinder, and the convex part is a part provided with a slip sheet groove; and the laser distance measuring sensor is electrically connected with the rotating mechanism of the clamping piece, so that the position calibration of the slip sheet groove during automatic cylinder sorting is realized.

Description

Technical Field

[0001] The utility model relates to an online detection device for the cylinder size accuracy of an air-conditioning compressor, in particular to an alignment device and a cylinder detection device for cylinder measurement. Background Art

[0002] The cylinder is one of the key components in the air-conditioning compressor. The cylinder is used to assemble the rolling piston and the sliding vane. The rolling piston is set on the eccentric crankshaft of the compressor and rolls along the cylinder wall during cooling. The sliding vane is in close contact with the outer cylindrical wall of the rolling piston under the action of the spring force to form a dynamic seal.

[0003] The cylinder includes a cavity for placing a rolling piston and a slide slot for placing a slide. When assembling the cylinder, slide and movable piston, the precision of these three parts is very high. The precision directly affects the refrigeration quality and energy-saving efficiency of the air conditioner. Therefore, the cylinders required by the compressor are usually assembled in a selective manner, which inevitably requires the cylinders to be sorted before assembly.

[0004] When measuring cylinder sorting, the dimensional accuracy of the vane slot is involved. Online detection requires adjusting the position of the vane slot so that it can correspond exactly to the vane slot detection position of the online detection device. This involves adjusting the position and direction of the cylinder, which is often done manually. However, the manual method has high labor intensity and low production efficiency, and cannot meet the requirements of large-scale production. It is not conducive to market competition and the future development of the enterprise. Therefore, it is imperative to invent a device that can automatically adjust the angle of the cylinder. Utility Model Content

[0005] The utility model provides an alignment device and a cylinder detection device for cylinder measurement, and the main technical problem to be solved is how to use the device to automatically calibrate the position of a slide slot when the cylinder is sorted.

[0006] In order to solve the above technical problems, the utility model provides an alignment device for cylinder measurement, including a turntable, a feeding mechanism and a laser distance sensor; the feeding mechanism obtains the cylinder and places it on the turntable;

[0007] The turntable includes a rotatable clamping piece, and the middle cavity of the cylinder is clamped on the clamping piece, and the middle cavity is a chamber for placing a piston;

[0008] The laser distance measuring sensor is arranged on one side of the transfer platform; the laser path of the laser distance measuring sensor contacts the convex part of the cylinder, and the convex part is the part where the sliding plate groove is arranged;

[0009] The laser distance measuring sensor is electrically connected to the rotating mechanism of the clamp.

[0010] In a preferred embodiment, a through hole is provided in the middle of the transfer platform, and the clamp is movably placed in the through hole;

[0011] A plurality of inner claw clips are distributed around the periphery of the clamp.

[0012] In a preferred embodiment, an induction sheet is provided at the output end of the rotating mechanism.

[0013] In a preferred embodiment, the transfer table includes a material sensor.

[0014] In a preferred embodiment, a slot width testing device is provided on one side of the transfer table; the slot width testing device includes a slot width gauge plate and a lifting device for driving the slot width gauge plate; the transfer table has a space for the slot width gauge plate to move.

[0015] In a preferred embodiment, the slot width gauge plate is detachably mounted on the driving end of the lifting device.

[0016] In a preferred embodiment, the alignment device further comprises a positioning base, and at least one standard part placement platform is provided on the positioning base.

[0017] The utility model also provides a cylinder detection device, comprising the alignment device for cylinder measurement.

[0018] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0019] By setting a rotatable clamp to place the cylinder, the cylinder is driven to rotate to achieve the steering adjustment of the cylinder, and a laser distance sensor is set at a specified position to contact the convex part of the slide slot set in the cylinder to set the distance. When the cylinder rotates to the convex part and the laser contacts the set distance sensed by the laser distance sensor, the laser distance sensor feedback clamp stops rotating, and the cylinder rotates to the correct position required for detection, and the detection claw clamp is used to grab and place it at the detection position. The alignment device can realize the automatic calibration of the slide slot position during cylinder sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the alignment device in the preferred embodiment of the utility model;

[0021] Figure 2 This is a structural diagram of the transfer station in the preferred embodiment of the utility model;

[0022] Figure 3 This is a structural diagram of a detection device and an alignment device in a preferred embodiment of the utility model;

[0023] Figure 4 This is an overall diagram of the cylinder detection device in the preferred embodiment of the utility model;

[0024] Figure 5 This is a structural diagram of the cylinder in the preferred embodiment of the utility model.

[0025] Explanation of the reference numerals: 1. Transfer table; 11. Clamp; 12. Rotating mechanism; 13. Inner claw clamp; 2. Laser ranging sensor; 3. Material sensor; 4. Cylinder; 41. Middle cavity; 42. Protrusion; 43. Slide groove; 5. Slot width testing device; 51. Slot width gauge; 52. Lifting device; 53. Press block; 6. Positioning base; 61. Standard parts placement table; 7. Cylinder detection device; 71. Inspection table; 72. Width measuring device; 73. Width measuring piece; 8. Grabbing device; 9. Unloading position. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0029] refer to Figure 1-Figure 5 This embodiment provides an alignment device for measuring a cylinder 4, which is mainly used for active position alignment of a slide groove 43 on the cylinder 4 of a cylinder detection device 7, so as to facilitate the correct placement of the detection position on the cylinder detection device 7.

[0030] The dimensional accuracy detection of the cylinder 4 includes the detection of the overall size of the cylinder 4 and the dimensional accuracy detection of the vane slot 43. The vane slot 43 is used to place the vane. The size of the vane slot 43 needs to be detected in order to place a vane of appropriate size to meet the assembly accuracy requirements of the air-conditioning compressor.

[0031] like Figure 5 The conventional cylinder 4 includes a central cavity 41 for placing a piston and a slide plate groove 43 for placing a slide plate. The slide plate groove 43 is connected to the central cavity 41. The cylinder 4 is provided with a convex portion 42 at the position where the slide plate groove 43 is provided. Figure 1 When testing the cylinder 4, a testing position is set for the slide slot 43. The position of the slide slot 43 of the cylinder 4 may not correspond to the testing position when the cylinder 4 is loading. Therefore, an alignment device is required to align the position of the cylinder 4 before testing, adjust the slide slot 43 of the cylinder 4 to a suitable position, and then grab and place it at the testing position.

[0032] In this embodiment, the cylinder detection device 7 involved includes a detection mechanism, an alignment device, a gripping device 8 and a discharge position 9. Figure 4 The grabbing device 8 includes a linear module and a first gripper and a second gripper driven by the linear module. The first gripper moves back and forth between the alignment mechanism and the detection mechanism under the drive of the linear module, and is used to grab the cylinder 4 in the correct position after the cylinder 4 is aligned and transport it to the detection mechanism. The second gripper moves back and forth between the detection mechanism and the unloading position 9 under the drive of the linear module, and is used to grab the cylinder 4 and transport it to the unloading position 9 after the cylinder 4 is detected, and wait for the next process.

[0033] The detection mechanism includes a delivery platform 71, and the delivery platform 71 is provided with a width measuring device 72, which is used to detect the width of the slide slot 43 of the cylinder 4. The width measuring device 72 is fixedly installed on one side of the delivery platform 71, and the width measuring device 72 includes a width measuring member 73 and a driving member of the width measuring member 73. When the cylinder 4 is placed on the delivery platform 71, the side width member is extended from the bottom of the slide slot 43 into the slide slot 43 by the driving member to measure the width. The alignment device provided in this embodiment is used to align the position of the slide slot 43 of the cylinder 4, so that the slide slot 43 can be rotated to correspond to the position of the width measuring member 73, and then the slide slot 43 can be placed correspondingly above the width measuring member 73 when it is grasped by the first claw for parallel transportation and then lowered, so as to facilitate the extension of the width measuring member 73 and avoid the misalignment of the position, which causes the width measuring member 73 to get stuck.

[0034] The alignment device provided in this embodiment includes a turntable 1, a feeding mechanism and a laser ranging sensor 2; the feeding mechanism obtains the cylinder 4 and places it on the turntable 1; the turntable 1 includes a rotatable clamp 11, and the middle cavity 41 of the cylinder 4 is clamped on the clamp 11, and the middle cavity 41 is a chamber for placing a piston; the laser ranging sensor 2 is arranged on one side of the turntable 1; the laser path of the laser ranging sensor 2 contacts the convex portion 42 of the cylinder 4, and the convex portion 42 is the location where the slide groove 43 is set; the laser ranging sensor 2 is electrically connected to the rotating mechanism 12 of the clamp 11.

[0035] By setting a rotatable clamp 11 to place the cylinder 4, the cylinder 4 is driven to rotate, and the steering adjustment of the cylinder 4 is realized. The laser distance sensor 2 is set at a specified position, and contacts the convex part 42 of the slide slot 43 of the cylinder 4 to set the distance. When the cylinder 4 rotates to the point where the convex part 42 contacts the laser to the set distance sensed by the laser distance sensor 2, the laser distance sensor 2 feedbacks that the clamp 11 stops rotating. At this time, the cylinder 4 rotates to the correct position of the slide slot 43 required for detection, and the first claw of the grasping device 8 is used to grasp and place it on the inspection table 71. The alignment device is used to realize the automatic calibration of the position of the slide slot 43 when the cylinder 4 is sorted.

[0036] The rotating structure of the clamp 11 is set as follows: a through hole is set in the middle of the turntable 1, the clamp 11 is a column, and is movably placed in the through hole. A rotating mechanism 12 is set at the bottom of the column, and the rotating mechanism 12 can be driven by a rotating motor. The middle cavity 41 of the cylinder 4 is sleeved on the column of the clamp 11, and there is a certain friction between the cylinder 4 and the column of the clamp 11, so that the clamp 11 can drive the cylinder 4 to rotate when rotating, so as to realize the steering function of the cylinder 4.

[0037] In order to better drive the cylinder 4 to rotate on the turntable 1, three inner claw clamps 13 are evenly distributed around the clamp 11, forming a clamping force on the inside of the cavity 41 of the cylinder 4 from the inside to the outside, clamping the cylinder 4 so that the cylinder 4 can rotate circumferentially with the clamp 11.

[0038] In order to more accurately control the rotation of the card 11, an induction sheet is provided at the output end of the rotating mechanism 12, and the induction sheet is provided on the rotating shaft of the rotating motor. The induction switch combination can be used to send a start / stop signal to the automated instruction system to achieve accurate control of the rotating motor.

[0039] At the same time, a material sensor 3 is set on the transfer table 1, such as Figure 2 The material sensor 3 is arranged on one side of the transfer table 1 through a fixed bracket, and is used to sense whether a cylinder 4 is placed at the position of the clamp 11 on the transfer table 1, so as to control whether to start the rotating mechanism 12 to perform the alignment process.

[0040] In order to calibrate the position of the vane groove 43 of the cylinder 4, a groove width testing device 5 is provided on one side of the turntable 1. The position of the turntable 1 and the inspection table 71 are used as the basis, and the position of the width measuring device 72 corresponding to the inspection table 71 is used as a reference. The positional relationship between the groove width testing device 5 and the turntable 1 is set so that the groove width testing device 5 and the width measuring device 72 can detect the vane groove 43 of the cylinder 4 at the same position.

[0041] The groove width testing device 5 is used to detect the preliminary groove size of the vane groove 43 of the cylinder 4. It is mainly used for preliminary detection of the vane groove 43 of the cylinder 4 with the same specifications in batches. The vane groove 43 of the cylinder 4 of the same batch is within the specification size. If there is a large difference in the size of the vane groove 43, which exceeds the specification size, the groove width testing device 5 is used to perform preliminary screening of defective cylinders 4.

[0042] The slot width testing device 5 includes a slot width gauge plate 51 and a lifting device 52 for driving the slot width gauge plate 51; the transfer table 1 has a space for the slot width gauge plate 51 to move. The width of the slot width gauge plate 51 is set based on the width of the qualified specifications of the slide vane slot 43 of the cylinder 4 of the same batch. For example, the width of the slide vane slot 43 of the cylinder 4 of the same batch is set between AC, and the width of the slot width gauge plate 51 is set at A. If the width of the slide vane slot 43 of the cylinder 4 is less than A, the slot width gauge plate 51 cannot extend into the slide vane slot 43 of the cylinder 4, and feedback can be given to the control system to process the defective cylinder 4.

[0043] In order to adapt to the universal use of cylinders 4 of different specifications and batches, the slot width gauge plate 51 is detachably mounted on the driving end of the lifting device 52. A mounting platform is arranged on the driving end of the lifting device 52, a pressing block 53 is arranged on the platform, a clamping slot is arranged on the pressing block 53, and a mounting rod is arranged on the slot width gauge plate 51, which is clamped in the clamping slot and fixed on the mounting platform by the pressing block 53. The pressing block 53 is locked with the mounting platform by bolts, and the bolts are released and the slot width gauge plate 51 can be replaced by removing the pressing block 53.

[0044] In order to facilitate the position setting and adjustment between the various components on the transfer table 1, the alignment device also includes a positioning base 6, and at least one standard part placement table 61 is provided on the positioning base 6. The standard part placement table 61 is used to place the cylinder 4 standard parts, and the cylinder 4 standard parts randomly selected from the same batch are used as standard parts for reference.

[0045] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A alignment device for cylinder measurement, characterized in that: It includes a transfer table, a feeding mechanism and a laser distance sensor; the feeding mechanism obtains a cylinder and places it on the transfer table; The turntable includes a rotatable clamping piece, and the middle cavity of the cylinder is clamped on the clamping piece, and the middle cavity is a chamber for placing a piston; The laser distance measuring sensor is arranged on one side of the transfer table; the laser path of the laser distance measuring sensor contacts the convex part of the cylinder, and the convex part is the part where the sliding plate groove is arranged; The laser distance measuring sensor is electrically connected to the rotating mechanism of the clamp.

2. The alignment device for cylinder measurement according to claim 1, characterized in that: A through hole is provided in the middle of the transfer platform, and the clamp is movably placed in the through hole; A plurality of inner claw clips are distributed around the periphery of the clamp.

3. The alignment device for cylinder measurement according to claim 2, characterized in that: An induction sheet is arranged at the output end of the rotating mechanism.

4. The alignment device for cylinder measurement according to claim 2, characterized in that: The transfer table includes a material sensor.

5. The alignment device for cylinder measurement according to claim 1, characterized in that: A slot width testing device is arranged on one side of the transfer platform; the slot width testing device comprises a slot width gauge plate and a lifting device for driving the slot width gauge plate; the transfer platform has a space for the slot width gauge plate to move.

6. The alignment device for cylinder measurement according to claim 5, characterized in that: The slot width gauge plate is detachably mounted on the driving end of the lifting device.

7. The alignment device for cylinder measurement according to claim 1, characterized in that: The alignment device further comprises a positioning base, on which at least one standard component placement platform is arranged.

8. A cylinder detection device, characterized in that: It comprises the alignment device for cylinder measurement as described in any one of claims 1-7.

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