Variable displacement piston welding seam detection device

Abstract

The utility model discloses a variable displacement piston welding seam detection device, which belongs to the technical field of piston welding seam detection and comprises a bottom plate. A detection structure used for detecting a piston welding seam is arranged above the bottom plate, the detection structure is installed on the bottom plate through a side plate, one side of the detection structure is provided with a rotary gear motor for driving a piston to rotate, and the rotary gear motor is installed on the bottom plate through a motor support; the detection structure comprises two rotary supporting seats which are symmetrically arranged, a detection assembly is arranged below the symmetric surface of each rotary supporting seat, and a positioning block is arranged above the symmetric surface of each rotary supporting seat; the rotary gear motor drives the rotary supporting seat to rotate through belt transmission; the piston welding seam detection device has the beneficial effects that the symmetrically arranged rotary supporting seats are provided, the rotary gear motor drives the rotary supporting seats to rotate through the rotation of the belt, and the rotary supporting seats rotate synchronously, so that when a piston welding seam is detected, the piston rotates stably under the driving of the rotary seats, and the detection is accurate; the belt wheel transmission structure is simple, adjustment is convenient, and maintenance cost can be reduced.

Description

Technical field:

[0001] The utility model belongs to the technical field of piston weld detection, and more specifically relates to a variable displacement piston weld detection device. Background technology:

[0002] The piston of a variable displacement compressor generally consists of two parts: the head and the barrel. Currently, the two parts are connected by laser welding, plasma welding or friction pressure welding, which have high requirements for welding quality and strength. As customers continue to improve product quality, they want to reduce possible risks and conduct inspections on key parts of welds. The existing inspection equipment has a complex structure and high maintenance costs. It is easy to have deviations during the inspection process, resulting in inaccurate inspections and cannot meet the needs of pistons of different sizes. Utility model content:

[0003] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model provides a variable displacement piston weld detection device;

[0004] The first technical problem to be solved is that when inspecting piston welds, the structure is complex, the maintenance cost is high, and deviations are prone to occur during the inspection process, resulting in inaccurate inspection.

[0005] The second technical problem to be solved is the inability to detect pistons of different sizes.

[0006] The specific technical solution of the utility model to solve the above technical problems is as follows: the variable displacement piston weld detection device comprises a bottom plate; a detection structure for detecting the piston weld is arranged above the bottom plate, the detection structure is mounted on the bottom plate through a side plate, a rotary reduction motor for driving the piston to rotate is arranged on one side of the detection structure, and the rotary reduction motor is mounted on the bottom plate through a motor bracket;

[0007] The detection structure includes a rotating support seat supporting the rotation of the workpiece, the rotating support seat is symmetrically arranged, a detection component for detecting the piston weld is arranged below the symmetrical surface of the rotating support seat, and a positioning block for adjusting the piston position is arranged above the symmetrical surface of the rotating support seat, and the positioning block is mounted on the side plate;

[0008] The rotating support seat is fixedly provided with a rotating shaft, the rotating shaft passes through the side plate and extends to the outside to be fixedly connected to the driven pulley, the output end of the rotating reduction motor is key-connected with the driving pulley, and the driving pulley and the driven pulley are connected through a belt transmission;

[0009] The detection assembly comprises a probe fixing plate, the probe fixing plate is fixed to the side plate by bolts, and the probe fixing plate is provided with a probe mounting hole.

[0010] Furthermore, a connecting plate is fixedly provided at one end of the positioning block in the horizontal direction, a through hole for adjusting the position of the positioning block is provided in the middle of the connecting plate, and the positioning block is installed on the side plate by bolts passing through the through hole.

[0011] Furthermore, the probe fixing plate is L-shaped.

[0012] Furthermore, a fastening threaded hole for fastening the probe through a fastening bolt is provided at the front end of the probe fixing plate.

[0013] Furthermore, vertical plates supporting the motor bracket are arranged on both sides of the rear end surface of the motor bracket, and the vertical plates are triangular in shape.

[0014] The beneficial effects of the utility model are:

[0015] One advantage of the utility model is that it provides a symmetrically arranged rotating support seat, which is connected to a driven pulley via a rotating shaft key, and the rotating reduction motor drives the driving pulley to rotate, and the driving pulley drives the driven pulley to rotate, thereby driving the symmetrically arranged rotating support seat to rotate synchronously, so that when detecting the piston weld, the piston rotates smoothly under the drive of the rotating seat, and the detection is accurate; and the pulley transmission has a simple structure and is easy to adjust, which can reduce maintenance costs.

[0016] One advantage of the utility model is that it provides a positioning block that can adjust the position according to the size of the piston. By adjusting the tightness of the bolt, the position between the bolt and the through hole is adjusted, thereby realizing the position change of the positioning block, which can better adapt to pistons of different lengths. Description of the drawings:

[0017] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Attached Figure 2 It is a schematic diagram of the structure of the utility model from top view;

[0019] Attached Figure 3 It is a right view structural schematic diagram of the utility model;

[0020] Attached Figure 4 This is a schematic diagram of the main structure of the utility model; in the accompanying drawings:

[0021] 1. Bottom plate; 11. Vertical plate; 2. Side plate; 3. Detection structure; 31. Rotating support seat; 32. Driven pulley; 33. Driving pulley; 4. Detection assembly; 41. Probe fixing plate; 42. Probe mounting hole; 43. Adjustment hole; 5. Positioning block; 6. Connecting plate; 61. Through hole; 7. Rotating reduction motor; 71. Motor bracket. Specific implementation method:

[0022] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] Specific implementation of the utility model: the variable displacement piston weld detection device comprises a bottom plate 1; a detection structure 3 for detecting the piston weld is arranged above the bottom plate 1, the detection structure 3 is installed on the bottom plate 1 through a side plate 2, the side plate 2 is fastened to a fixing block through bolts, and the fixing block is fastened to the bottom plate 1 through bolts;

[0024] A rotary reduction motor 7 for driving the piston to rotate is provided on one side of the detection structure 3. The rotary reduction motor 7 is installed on the bottom plate 1 through a motor bracket 71. In order to maintain the stability of the rotary reduction motor 7 during operation, vertical plates 11 supporting the motor bracket 71 are provided on both sides of the rear end surface of the motor bracket 71. The vertical plate 11 is a right-angled triangle. One right-angled side of the vertical plate 11 is fixedly connected to the motor bracket 71 by bolts, and the other right-angled side is fixedly connected to the bottom plate 1 by bolts.

[0025] As a preferred embodiment:

[0026] The detection structure 3 can be configured as:

[0027] The detection structure 3 includes a rotating support seat 31 supporting the rotation of the piston, the rotating support seat 31 is symmetrically arranged, a detection component 4 for detecting the piston weld is arranged below the symmetric surface of the rotating support seat 31, and a positioning block 5 for adjusting the position of the piston is arranged above the symmetric surface of the rotating support seat;

[0028] The rotating support seat 31 is fixedly provided with a rotating shaft, the rotating shaft passes through the side plate 2 and extends to the outside to be fixedly connected to the driven pulley 32, the output end of the rotating reduction motor 7 is keyed to the driving pulley 33, and the driving pulley 33 is connected to the driven pulley 32 through a belt transmission;

[0029] With this structure, the symmetrically arranged rotating support seat 31 has a simple structure, stable transmission operation, low noise and low vibration; the rotating reduction motor 7 drives the active pulley 33 to rotate, and the active pulley 33 drives the driven pulley 32 to rotate, thereby driving the symmetrically arranged rotating support seat 31 to rotate synchronously, so that when detecting the piston weld, the piston rotates smoothly under the drive of the rotating support seat 31, and the detection is accurate; and the pulley transmission has a simple structure and is easy to adjust, which can reduce maintenance costs.

[0030] The detection assembly 4 includes a probe fixing plate 41, which is L-shaped and fixed to the side plate 2 by bolts. A probe mounting hole 42 is provided above the probe fixing plate 41, and a fastening threaded hole 43 is provided at the front end of the probe fixing plate 41 for fastening the detection probe to the probe fixing plate 41 by fastening bolts;

[0031] A connecting plate 6 is fixedly disposed at one end of the positioning block 5 in the horizontal direction. A through hole 61 for adjusting the position of the positioning block 5 is disposed in the middle of the connecting plate 6 . The positioning block 5 is mounted on the side plate 2 by bolts passing through the through hole 61 .

[0032] When this structure is used to detect piston welds, it has a simple structure and is easy to operate. A positioning block 5 is provided that can be adjusted according to the size of the piston. The position between the bolt and the through hole 61 is adjusted by adjusting the tightness of the bolt, thereby realizing the position change of the positioning block 5, which can better adapt to pistons of different lengths.

[0033] It should be noted that the utility model is a variable displacement piston weld detection device. When working,

[0034] (1) The piston is placed between the two rotating support seats 31. The piston cooperates with the positioning block 5. The position between the bolt and the through hole 61 is adjusted by adjusting the tightness of the adjusting bolt between the through hole 61 and the side plate 2, thereby adjusting the position of the positioning block 5. The positioning block 5 pushes the piston so that the weld of the piston and the probe mounting hole 42 where the laser detection probe is installed are in the same horizontal plane. After the positions are aligned, the bolts are tightened to fasten the positioning block 5 to the side plate 2. This can better adapt to pistons of different lengths.

[0035] (2) Start the rotary reduction motor 7, which drives the driving pulley 33 to rotate. The driving pulley 33 drives the driven pulley 32 to rotate through the belt, thereby driving the symmetrically arranged rotary support seats 31 to rotate synchronously, thereby driving the piston to rotate in the opposite direction between the two rotary support seats 31.

[0036] In this way, the transmission runs smoothly, with low noise and low vibration, so that when detecting the piston weld, the piston rotates smoothly under the drive of the rotating support seat 31, and the detection is accurate; and the pulley transmission has a simple structure and is easy to adjust, which can reduce maintenance costs.

[0037] (3) The piston rotates in the opposite direction between the two rotating support seats 31. After the laser detection probe below detects one circle of the piston weld, the laser detection probe transmits the detection result to the controller.

[0038] (4) After the inspection is completed, a new piston is replaced for inspection. If the piston is qualified, it enters the next station for further processing; if the piston is unqualified, it is reprocessed and the cycle continues.

[0039] The laser detection probe for detecting welds described in the present invention transmits the detection results to a controller, which belongs to the prior art. The controller can be a PLC or other components that can realize control functions, etc. Through the setting of the controller, the controller and the detector cooperate to realize the detection and judgment of whether the weld of the piston meets the standards. It is not within the scope of protection of the present invention and will not be elaborated here.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A variable displacement piston weld detection device, comprising a base plate (1); characterized in that: A detection structure (3) for detecting the piston weld is provided above the bottom plate (1); the detection structure (3) is mounted on the bottom plate (1) via a side plate (2); a rotary reduction motor (7) is provided on one side of the detection structure (3); the rotary reduction motor (7) is mounted on the bottom plate (1) via a motor bracket (71); The detection structure (3) comprises a rotating support seat (31) for supporting the rotation of the piston, the rotating support seat (31) being symmetrically arranged, a detection assembly (4) for detecting the piston weld being arranged below the symmetrical plane of the rotating support seat (31), a positioning block (5) for adjusting the position of the piston being arranged above the symmetrical plane of the rotating support seat (31), and the positioning block (5) being mounted on the side plate (2); The rotating support seat (31) is fixedly provided with a rotating shaft, the rotating shaft passes through the side plate (2) and extends to the outside to be fixedly connected to the driven pulley (32), the output end of the rotating reduction motor (7) is key-connected with a driving pulley (33), and the driving pulley (33) and the driven pulley (32) are connected through a belt transmission; The detection assembly (4) comprises a probe fixing plate (41), wherein the probe fixing plate (41) is fixed to the side plate (2) by means of bolts, and a probe mounting hole (42) is provided on the probe fixing plate (41).

2. The variable displacement piston weld detection device according to claim 1, characterized in that A connecting plate (6) is fixedly provided at one end of the positioning block (5) in the horizontal direction, a through hole (61) for adjusting the position of the positioning block (5) is provided in the middle of the connecting plate (6), and the positioning block (5) is mounted on the side plate (2) by means of bolts passing through the through hole (61).

3. The variable displacement piston weld detection device according to claim 1, characterized in that The probe fixing plate (41) is L-shaped.

4. The variable displacement piston weld detection device according to claim 3 is characterized in that The front end of the probe fixing plate (41) is provided with a fastening threaded hole (43) for fastening the detection probe to the probe fixing plate (41) via a fastening bolt.

5. The variable displacement piston weld detection device according to claim 1, characterized in that Vertical plates (11) supporting the motor bracket (71) are arranged on both sides of the rear end surface of the motor bracket (71), and the vertical plates (11) are triangular in shape.

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