A bushing identification device and identification method

Abstract

The application discloses a bushing identification device and identification method, which comprises a base, a supporting mechanism, a diameter detection mechanism and a height detection mechanism; the supporting mechanism is installed on the base and is used for bearing the bushing to be detected; the diameter detection mechanism comprises a clamping jaw air cylinder, a clamping jaw and a first laser sensor; the clamping jaw air cylinder is used for driving the clamping jaw to clamp the outer surface of the bushing; and the first laser sensor is used for measuring the displacement of the clamping jaw to detect the diameter of the bushing; the height detection mechanism comprises a second laser sensor, which is used for detecting the height of the bushing. The application can automatically identify whether the bushing meets the requirements of the workstation, avoid the problem of wrong feeding during manual feeding, save manpower, improve the production efficiency, and has the advantages of simple structure, low manufacturing cost and strong practicability.

Description

Technical Field

[0001] This invention belongs to the field of machining technology, and specifically relates to a bushing identification device and identification method. Background Technology

[0002] The assembly of automotive universal joints involves the automated assembly process of bushings. Since the same product may use a variety of bushings that are similar in shape but different in size, for example, some have different diameters but the same height, some have the same diameter but different heights, and some have both different heights and diameters, and there are no identification marks on the bushings, so manual identification is required. This results in low production efficiency, but there is still a risk that the wrong material may be loaded when manually loading, which may lead to incorrect bushing assembly and product scrap. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bushing identification device and identification method that can automatically identify whether the bushing meets the requirements of the workstation, avoid the problem of incorrect material loading during manual loading, save manpower, improve production efficiency, and has a simple structure, low manufacturing cost, and strong practicality.

[0004] This invention provides the following technical solution:

[0005] In a first aspect, a bushing identification device is provided, comprising a base, a support mechanism, a diameter detection mechanism, and a height detection mechanism;

[0006] The support mechanism is mounted on the base and is used to support the bushing to be tested;

[0007] The diameter detection mechanism includes a gripper cylinder, a gripper, and a first laser sensor. The gripper cylinder is used to drive the gripper to clamp onto the outer surface of the bushing, and the first laser sensor is used to measure the displacement of the gripper to detect the bushing diameter.

[0008] The height detection mechanism includes a second laser sensor, which is used to detect the bushing height.

[0009] Furthermore, the support mechanism includes a lower support plate fixedly connected to the base, an upper support plate fixedly connected to the lower support plate, and a bearing seat fixed to the top of the upper support plate; the lower support plate is U-shaped, the upper support plate is inverted U-shaped, and a through groove is formed in the middle after the lower support plate and the upper support plate are connected relative to each other.

[0010] Furthermore, the support includes a base plate, a first flow channel side plate, a second flow channel side plate, and an L-shaped baffle. The base plate is vertically connected to the upper support plate. The first flow channel side plate and the second flow channel side plate are disposed opposite each other on both sides of the base plate. One end of the first flow channel side plate and the second flow channel side plate is open, and the other end is closed by the L-shaped baffle.

[0011] Furthermore, the diameter detection mechanism also includes a support block, which is installed on the side of the upper support plate. The gripper cylinder passes through the through groove and is fixedly connected to the support block. There are two grippers, which are respectively located on both sides of the support seat.

[0012] Furthermore, the gripper includes a slider, a connecting block connected to the slider, and a gripper connected to the connecting block. The bearing seat has through holes on both sides to accommodate the gripper passing through. The top of the gripper cylinder is provided with a slide rail. The slider is assembled in the slide rail and can slide along the slide rail.

[0013] Furthermore, the base is provided with two mounting seats on both sides of the support mechanism, and a first guide post and a second guide post are respectively installed in the two mounting seats; the first laser sensor is a laser displacement sensor and is mounted on the first guide post through a first mounting bracket; the second laser sensor is a set of through-beam photoelectric sensors and is mounted on the first guide post and the second guide post through a second mounting bracket.

[0014] Furthermore, the first mounting bracket includes a first fixing block fixed to the first guide post by fastening bolts and a first cross arm connected to the first fixing block, the first cross arm being provided with a second mounting hole for assembling the first laser sensor.

[0015] Furthermore, it also includes a positioning detection mechanism for detecting whether the bushing is in place, which includes a third laser sensor. The third laser sensor is a set of through-beam photoelectric sensors and is respectively mounted on the first guide post and the second guide post via a third mounting bracket.

[0016] Furthermore, the third mounting bracket includes a second fixing block fixed to the first guide post by fastening bolts, a second cross arm connected to the second fixing block, and a protective cover connected to the side of the second cross arm. The second cross arm is provided with a third mounting hole for assembling the third laser sensor. When the third laser sensor is assembled at the third mounting hole, it is locked inside the protective cover.

[0017] In a second aspect, a method for identifying bushings using the bushing identification device described in the first aspect is provided, comprising the following steps:

[0018] The bushing to be inspected is transported to the support mechanism and carried by the support mechanism;

[0019] The diameter detection mechanism uses a gripper cylinder to drive the gripper to clamp onto the outer surface of the bushing. The first laser sensor measures the displacement of the gripper to detect the bushing diameter. If the diameter does not meet the requirements of this station, an alarm will be triggered.

[0020] The second laser sensor of the height detection mechanism detects the bushing height, and an alarm is triggered if the bushing height does not meet the requirements of this station.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) The present invention supports the bushing to be tested by a support mechanism installed on the base, and drives the gripper cylinder of the diameter detection mechanism to clamp the outer surface of the bushing. The first laser sensor measures the displacement of the gripper to detect the diameter of the bushing, and the second laser sensor of the height detection mechanism detects the height of the bushing, thereby realizing automatic identification of whether the bushing meets the requirements of the workstation and avoiding the problem of incorrect material loading when manually loading the material.

[0023] (2) The present invention has a simple structure, low manufacturing cost, strong practicality, and can automatically identify bushing size without manual identification, saving manpower and improving production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0026] Figure 3 This is a structural diagram of the support mechanism;

[0027] Figure 4 This is a structural diagram of the gripper and gripper cylinder;

[0028] Figure 5 This is a schematic diagram of the structure when the grippers hold the bushing;

[0029] Figure 6 These are structural diagrams of the first and second mounting brackets;

[0030] The following are labeled in the diagram: 1. Base; 2. Lower support plate; 3. Upper support plate; 4. Support block; 5. Gripper cylinder; 6. Mounting seat; 7. First guide post; 8. First laser sensor; 9. Bearing seat; 91. Base plate; 92. First flow channel side plate; 93. Second flow channel side plate; 94. L-shaped baffle; 95. Limiting block; 96. Gripper through hole; 10. Third laser sensor; 11. Second laser sensor; 12. Second guide post; 13. Bushing; 4. Fastening bolts; 15. First mounting bracket; 151. First fixing block; 152. First cross arm; 153. Second mounting hole; 16. Third mounting bracket; 161. Second fixing block; 162. Second cross arm; 163. Protective cover; 164. Third mounting hole; 17. Second mounting bracket; 18. Slide rail; 19. Gripper; 191. Slider; 192. Connecting block; 193. Handle; 20. Through slot; 21. First mounting hole; 22. Through-beam photoelectric sensor. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0032] It should be noted that in the description of this invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] Example 1

[0034] like Figure 1 As shown, this embodiment provides a bushing identification device, including a base 1, a support mechanism, a diameter detection mechanism, and a height detection mechanism.

[0035] like Figure 1-3 As shown, the support mechanism is installed on the base 1 to support the bushing 13 to be tested. Specifically, the support mechanism includes a lower support plate 2 fixedly connected to the base 1, an upper support plate 3 fixedly connected to the lower support plate 2, and a bearing seat 9 fixed to the top of the upper support plate 3; the lower support plate 2 is U-shaped, the upper support plate 3 is inverted U-shaped, and a through groove 20 is formed in the middle after the lower support plate 2 and the upper support plate 3 are connected relative to each other.

[0036] like Figure 3 As shown, the support base 9 includes a base plate 91, a first flow channel side plate 92, a second flow channel side plate 93, and an L-shaped baffle 94. The base plate 91 is vertically connected to the upper support plate 3. The first flow channel side plate 92 and the second flow channel side plate 93 are arranged opposite each other on both sides of the base plate 91. One end of the first flow channel side plate 92 and the second flow channel side plate 93 is open, and the other end is closed by the L-shaped baffle 94. The side of the L-shaped baffle 94 facing the open end has an arc-shaped surface to accommodate the bushing. A limiting block 95 for limiting the bushing is also provided above the arc-shaped surface of the L-shaped baffle 94.

[0037] like Figure 1 , 2As shown in Figures 4 and 5, the diameter detection mechanism includes a support block 4, a gripper cylinder 5, grippers 19, and a first laser sensor 8. The support block 4 is mounted on the side of the upper support plate 3. The gripper cylinder 5 has a pre-drilled first mounting hole 21. The gripper cylinder 5 is set through a through slot 20 and is fixedly connected to the support block 4 through the first mounting hole 21 and bolts. There are two grippers 19, which are respectively located on both sides of the support seat 9. The gripper 19 includes a slider 191, a connecting block 192 connected to the slider 191, and a gripper 193 connected to the connecting block 192. The support seat 9 has gripper through holes 96 on both sides to accommodate the gripper 193. The top of the gripper cylinder 5 is provided with a slide rail 18. The slider 191 is assembled in the slide rail 18 and can slide along the slide rail 18. The gripper cylinder 5 drives the two grippers 19 to move. When the grippers 19 move, the slider 191 slides in the slide rail 18. Finally, the grippers 193 of the two grippers 19 clamp the outer surface of the bushing 13. The first laser sensor 8 is a laser displacement sensor, which is used to measure the displacement of the grippers 19 to detect the diameter of the bushing 13.

[0038] like Figure 1 and 2 As shown, the height detection mechanism includes a second laser sensor 11, which is used to detect the bushing height. The second laser sensor 11 is a set of through-beam photoelectric sensors that emit laser light with a small spot diameter, resulting in low cost and high accuracy.

[0039] like Figure 1 , 2 As shown in Figure 6, the base 1 has two mounting seats 6 located on both sides of the support mechanism, and a first guide post 7 and a second guide post 12 are respectively installed in the two mounting seats 6. The first laser sensor 8 is mounted on the first guide post 7 via a first mounting bracket 15; the first mounting bracket 15 includes a first fixing block 151 fixed to the first guide post 7 by fastening bolts 14 and a first cross arm 152 connected to the first fixing block 151, and the first cross arm 152 is provided with a second mounting hole 153 for assembling the first laser sensor 8. A set of through-beam photoelectric sensors of the second laser sensor 11 are respectively mounted on the first guide post 7 and the second guide post 12 via a second mounting bracket 17.

[0040] Example 2

[0041] This embodiment provides a method for identifying bushings using the bushing identification device described in Embodiment 1, including the following steps:

[0042] The bushing 13 to be tested enters from the opening end of the first flow channel side plate 92 and the second flow channel side plate 93, and continues to advance to the arc surface of the L-shaped baffle 94.

[0043] The gripper cylinder 5 of the diameter detection mechanism drives the two grippers 19 to move. When the grippers 19 move, the slider 191 slides in the slide rail 18. Finally, the grippers 193 of the two grippers 19 clamp the outer surface of the bushing 13. The first laser sensor 8 measures the displacement of the grippers 19 to detect the diameter of the bushing 13. If it does not meet the bushing diameter requirements of this station, an alarm will be triggered.

[0044] The second laser sensor 11 of the height detection mechanism detects the bushing height. If it does not meet the bushing height requirements of this station, an alarm will be triggered.

[0045] Example 3

[0046] like Figure 1 and 2 As shown, this embodiment provides a bushing identification device, which includes the structure in embodiment 1, and also includes a positioning detection mechanism. The positioning detection mechanism is used to detect whether the bushing is in place, and includes a third laser sensor 10. The third laser sensor 10 is a set of through-beam photoelectric sensors and is respectively mounted on the first guide post 7 and the second guide post 12 through a third mounting bracket 16.

[0047] like Figure 6 As shown, the third mounting bracket 16 has a similar structure to the second mounting bracket 17, including a second fixing block 161 fixed to the first guide post 7 by fastening bolts 14, a second cross arm 162 connected to the second fixing block 161, and a protective cover 163 connected to the side of the second cross arm 162. The second cross arm 162 is provided with a third mounting hole 164 for assembling the third laser sensor 10. When the third laser sensor 10 is assembled at the third mounting hole 164, it is locked in the protective cover 163.

[0048] Example 4

[0049] This embodiment provides a method for identifying bushings using the bushing identification device described in Embodiment 3, including the following steps:

[0050] The bushing 13 to be tested enters from the opening end of the first flow channel side plate 92 and the second flow channel side plate 93, and continues to advance to the arc surface of the L-shaped baffle 94.

[0051] The third laser sensor 10 of the positioning detection mechanism detects whether the bushing 13 is in place. If it is not in place, the bushing is pushed to the set position. If it is in place, the following steps are performed.

[0052] The gripper cylinder 5 of the diameter detection mechanism drives the two grippers 19 to move. When the grippers 19 move, the slider 191 slides in the slide rail 18. Finally, the grippers 193 of the two grippers 19 clamp the outer surface of the bushing 13. The first laser sensor 8 measures the displacement of the grippers 19 to detect the diameter of the bushing 13. If it does not meet the bushing diameter requirements of this station, an alarm will be triggered.

[0053] The second laser sensor 11 of the height detection mechanism detects the bushing height. If it does not meet the bushing height requirements of this station, an alarm will be triggered.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A bushing identification device, characterized in that, Includes a base, support mechanism, diameter detection mechanism, height detection mechanism, and positioning detection mechanism; The support mechanism is mounted on the base and is used to support the bushing to be tested; The support mechanism includes a lower support plate fixedly connected to the base, an upper support plate fixedly connected to the lower support plate, and a bearing seat fixed to the top of the upper support plate. The support includes a base plate, a first flow channel side plate, a second flow channel side plate, and an L-shaped baffle. The base plate is vertically connected to the upper support plate. The first flow channel side plate and the second flow channel side plate are disposed opposite each other on both sides of the base plate. One end of the first flow channel side plate and the second flow channel side plate is open, and the other end is closed by the L-shaped baffle. The side of the L-shaped baffle facing the open end is provided with an arc-shaped surface to accommodate the bushing. A limiting block for limiting the bushing is also provided above the arc-shaped surface of the L-shaped baffle. The diameter detection mechanism includes a gripper cylinder, a gripper, and a first laser sensor. The gripper cylinder is used to drive the gripper to clamp onto the outer surface of the bushing, and the first laser sensor is used to measure the displacement of the gripper to detect the bushing diameter. The height detection mechanism includes a second laser sensor, which is used to detect the bushing height. The positioning detection mechanism is used to detect whether the bushing is in place, and includes a third laser sensor; The base is provided with two mounting seats on both sides of the support mechanism, and a first guide post and a second guide post are respectively installed in the two mounting seats; the first laser sensor is a laser displacement sensor and is mounted on the first guide post through a first mounting bracket; the second laser sensor is a set of through-beam photoelectric sensors and is mounted on the first guide post and the second guide post through a second mounting bracket; the third laser sensor is a set of through-beam photoelectric sensors and is mounted on the first guide post and the second guide post through a third mounting bracket.

2. The bushing identification device according to claim 1, characterized in that, The lower support plate is U-shaped, the upper support plate is inverted U-shaped, and a through groove is formed in the middle after the lower support plate and the upper support plate are connected.

3. The bushing identification device according to claim 2, characterized in that, The diameter detection mechanism also includes a support block, which is installed on the side of the upper support plate. The gripper cylinder passes through the through groove and is fixedly connected to the support block. There are two grippers, which are respectively located on both sides of the support seat.

4. The bushing identification device according to claim 3, characterized in that, The gripper includes a slider, a connecting block connected to the slider, and a gripper connected to the connecting block. The bearing base has through holes on both sides to accommodate the gripper. The top of the gripper cylinder is provided with a slide rail. The slider is assembled in the slide rail and can slide along the slide rail.

5. The bushing identification device according to claim 1, characterized in that, The first mounting bracket includes a first fixing block fixed to a first guide post by fastening bolts and a first cross arm connected to the first fixing block. The first cross arm is provided with a second mounting hole for assembling a first laser sensor.

6. The bushing identification device according to claim 1, characterized in that, The third mounting bracket includes a second fixing block fixed to the first guide post by fastening bolts, a second cross arm connected to the second fixing block, and a protective cover connected to the side of the second cross arm. The second cross arm is provided with a third mounting hole for assembling a third laser sensor. When the third laser sensor is assembled at the third mounting hole, it is locked inside the protective cover.

7. A method for identifying bushings using the bushing identification device according to any one of claims 1 to 6, characterized in that, Includes the following steps: The bushing to be inspected is transported to the support mechanism and carried by the support mechanism; The diameter detection mechanism uses a gripper cylinder to drive the gripper to clamp onto the outer surface of the bushing. The first laser sensor measures the displacement of the gripper to detect the bushing diameter. If the diameter does not meet the requirements of this station, an alarm will be triggered. The second laser sensor of the height detection mechanism detects the bushing height, and an alarm is triggered if the bushing height does not meet the requirements of this station.

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