Joint seam alignment device

Abstract

A joint seam aligning device comprises a machine table, a feeding conveying mechanism, a mechanical arm, a clamping mechanism, a detecting mechanism and a discharging conveying mechanism. The feeding conveying mechanism is used for conveying and automatically adjusting the position of a bearing, and the mechanical arm drives the clamping mechanism to move and automatically clamp or place the bearing. The detection mechanism comprises a vertical moving device, a mounting plate, a rotating motor, a fixed cylinder, a rotating cylinder, a crossed roller, an oil seal, a rotating gear, a holding block, an electronic plug gauge and a placing seat. According to the detection mechanism, automatic descending and rotation detection of the electronic plug gauge can be realized, the accuracy of the rotation position of the electronic plug gauge can be ensured through mechanical control, the problems of deflection or uneven stress and the like are avoided, the problems of inaccurate detection data and low detection efficiency caused by manual use of a detection tool at present are avoided, and automatic detection is realized.

Description

Technical Field

[0001] The invention relates to the technical field of bearing detection devices, and in particular to a joint seam alignment device. Background Art

[0002] Bearings are items that carry shafts for rotation or sliding. In the market, bearings are needed in situations where rotation or axial sliding is required to ensure that the design performance of the machine meets the use requirements. The structure of the oil-free bearing in the prior art is as follows Figure 5 As shown, the bearing 100 is provided with a joint seam 110 arranged along the axial direction of the bearing 100. When processing the bearing, such as processing the oil groove, the joint seam 110 needs to be avoided, so it is necessary to detect the position of the joint seam 110. In the prior art, the detection of the position of the bearing joint seam is mostly performed manually, and then the bearing is manually aligned so that the joint seam faces the corresponding position, but the manual detection efficiency is low and is not suitable for batch detection. It is necessary to implement automatic detection to meet the quality control needs during batch production. Summary of the invention

[0003] In view of this, the present invention provides a joint seam alignment device to solve the above technical problems.

[0004] A joint seam alignment device includes a machine platform, a feeding and conveying mechanism arranged on the machine platform, a clamping and detecting mechanism arranged on the machine platform, and a transfer mechanism arranged on the machine platform. The clamping and detecting mechanism includes a column arranged on the machine platform, a two-axis moving device arranged on the column, a rotating motor arranged on the two-axis moving device, a three-claw cylinder arranged on the rotating motor, three clamping blocks arranged on the three-claw cylinder, a sensor bracket arranged on the column, and a sensor arranged on the sensor bracket. The three-claw cylinder controls the three clamping blocks to clamp the bearing from the inside of the bearing, and moves the bearing to the output direction of the sensor under the drive of the two-axis moving device. The rotating motor drives the three-claw cylinder and the bearing to rotate so that the side walls of the bearing in different directions face the sensor to detect the position of the joint seam. The transfer mechanism includes a rotating disk arranged on the machine platform, a plurality of positioning holes circumferentially distributed on the rotating disk, and a plurality of positioning rings arranged in the positioning holes. A joint seam positioning block is arranged on the inner side wall of the positioning ring, and the joint seam positioning block in the positioning ring closest to the feeding conveying mechanism is located on the same side as the joint seam of the bearing after detection.

[0005] Furthermore, the feeding conveying mechanism includes a belt conveying device arranged on the machine platform, and a baffle arranged on the belt conveying device, the baffle is arranged at one end of the belt conveying device and located in the conveying direction of the belt conveying device, and the baffle is provided with a V-shaped groove.

[0006] Furthermore, one clamping block is respectively arranged on the output end of the three-jaw cylinder, and the three-jaw cylinder controls the three clamping blocks to move closer to or farther away from each other.

[0007] Furthermore, the sensor is an infrared sensor.

[0008] Furthermore, two positioning blocks arranged opposite to each other are arranged on the inner side wall of the positioning hole, and two positioning grooves having shapes corresponding to the positioning blocks are arranged on the outer side wall of the positioning ring, and the positioning blocks are clamped in the positioning grooves.

[0009] Furthermore, the inner diameter of the positioning ring is the same as the diameter of the bearing.

[0010] Compared with the prior art, the joint seam alignment device provided by the present invention controls the three clamping blocks to clamp the bearing from the inside of the bearing through the three-claw cylinder, and then moves the bearing to the output direction of the sensor under the drive of the two-axis moving device, and the rotating motor drives the three-claw cylinder to rotate, so that the three-claw cylinder grabs the bearing and rotates, so that the side walls of the bearing in different directions face the sensor, and when the sensor detects the bearing in a rotating state, the infrared irradiation distance remains unchanged when the infrared ray is irradiated on the side wall of the bearing, and as the bearing rotates, the infrared irradiation distance changes when the infrared ray is irradiated on the bearing gap, thereby judging that the gap of the bearing has been detected. In addition, the position of the joint seam positioning block in the positioning ring closest to the feeding conveying mechanism is located on the same side as the joint seam of the bearing after detection, so that after the clamping detection mechanism rotates to detect the joint seam of the bearing, the position of the joint seam is already at the same position as the joint seam positioning block in the circumferential direction, so that it can be directly translated to the top of the positioning hole and then vertically dropped to be placed in the positioning ring, avoiding the change of the joint seam position caused by the rotation alignment again. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic structural diagram of a joint seam alignment device provided by the present invention.

[0012] Figure 2 for Figure 1 A schematic structural diagram of a clamping detection mechanism of a joint seam alignment device.

[0013] Figure 3 for Figure 1A schematic structural diagram of a transfer mechanism of a joint seam alignment device.

[0014] Figure 4 for Figure 1 A schematic structural diagram of a positioning ring of a joint seam alignment device.

[0015] Figure 5 for Figure 4 Schematic diagram of the structure of the bearing to be processed by the joint seam alignment device.

[0016] Explanation of the accompanying drawings: bearing 100, joint 110, machine table 10, feeding and conveying mechanism 20, clamping and detecting mechanism 30, transfer mechanism 40, belt conveyor 21, baffle 22, V-groove 221, column 31, two-axis moving device 32, rotating motor 33, three-claw cylinder 34, clamping block 35, sensor bracket 36, sensor 37, rotating disk 41, positioning hole 42, positioning ring 43, positioning block 44, positioning groove 45, joint positioning block 46. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0018] like Figures 1 to 5 As shown, it is a schematic diagram of the structure of the joint seam alignment device provided by the present invention. The joint seam alignment device includes a machine platform 10, a feeding and conveying mechanism 20 arranged on the machine platform 10, a clamping and detecting mechanism 30 arranged on the machine platform 10, and a transfer mechanism 40 arranged on the machine platform 10. It can be imagined that the joint seam alignment device also includes some other functional modules, such as a connecting component and an installation component, etc., which are well known to those skilled in the art and will not be described in detail here.

[0019] First of all, it should be noted that the bearing 100 is provided with a joint seam 110 arranged along the axial direction of the bearing 100. The joint seam alignment device is used to detect the position of the joint seam 110 of the bearing 100. Determining the joint seam 110 can facilitate the implementation of subsequent processing, such as welding the joint seam or avoiding the joint seam to mill an oil groove, etc. The bearing 100 should be prior art and will not be described in detail here.

[0020] The machine 10 is used to carry the above-mentioned functional modules, so the machine 10 is provided with a variety of functional structures, such as screws, bolts, clamps, etc. to complete the installation and assembly of the above-mentioned functional modules. It can be set according to actual needs and will not be described in detail one by one here.

[0021] The feeding conveying mechanism 20 is used for conveying and automatically adjusting the bearing position and includes a belt conveying device 21 arranged on the machine platform 10 and a baffle 22 arranged on the belt conveying device 21 .

[0022] The belt conveyor 21 is composed of a belt, a driving wheel, a driven wheel, a rotating motor, a frame and other components. The rotating motor drives the driving wheel to rotate, and the belt is sleeved on the driving wheel and the driven wheel, thereby driving the belt to rotate. When the belt is running, the workpiece moves with the belt by the friction between the belt and the workpiece to achieve transportation. The belt conveyor 21 should be a prior art and will not be described in detail here.

[0023] The baffle 22 is disposed at one end of the belt conveyor 21 and is located in the conveying direction of the belt conveyor 21 and is used to block the bearing to be inspected from continuing to move. The baffle 22 is provided with a V-shaped groove 221. The V-shaped groove 21 can position the conveyed bearing to be inspected to facilitate subsequent clamping.

[0024] The clamping detection mechanism 30 includes a column 31 arranged on the machine platform 10, a two-axis moving device 32 arranged on the column 31, a rotating motor 33 arranged on the two-axis moving device 32, a three-claw cylinder 34 arranged on the rotating motor 33, three clamping blocks 35 arranged on the three-claw cylinder 36, a sensor bracket 36 arranged on the column 31, and a sensor 37 arranged on the sensor bracket 36.

[0025] The two-axis moving device 32 is used to drive the two-axis movement of the rotating motor 33 and the three-claw cylinder 34, so as to move the bearing to the output direction of the sensor 38 after the three-claw cylinder 34 grabs the bearing.

[0026] The rotary motor 33 is used to drive the three-claw cylinder 34 to rotate, so that when the three-claw cylinder 34 grabs the bearing, the bearing is driven to rotate, so that the side walls of the bearing in different directions face the sensor 38 to find the position of the gap.

[0027] A clamping block 35 is respectively provided on the output end of the three-claw cylinder 34. The three-claw cylinder 34 controls the air pressure to make the three clamping blocks 35 approach or move away from each other. When clamping, the clamping block 35 extends into the bearing, and then the three-claw cylinder 34 controls the three clamping blocks 35 to move away from each other, thereby fixing the bearing from the inside, thereby avoiding the problem that the clamping block 35 will affect the infrared detection when clamping on the outer wall of the bearing.

[0028] The sensor bracket 36 is tightly mounted on the column 31. The sensor 37 is an infrared sensor. The sensor 37 responds differently according to the reflection of infrared rays by the object. When the sensor 37 detects the bearing in a rotating state, the infrared ray irradiation distance remains unchanged when the infrared ray irradiates the side wall of the bearing. As the bearing rotates, the infrared ray irradiation distance changes when the infrared ray irradiates the bearing gap, thereby judging that the bearing gap has been detected.

[0029] The transfer mechanism 40 includes a rotating disk 41 disposed on the machine platform 10 , a plurality of positioning holes 42 circumferentially distributed on the rotating disk 41 , and a plurality of positioning rings 43 disposed in the positioning holes 42 .

[0030] The rotating disk 41 will rotate under the drive of the external rotating device, thereby adjusting the position of the positioning hole 42 so that the positioning hole 42 is located at different processing stations. Two positioning blocks 44 are arranged opposite to each other on the inner side wall of the positioning hole 42, and two positioning grooves 45 with shapes corresponding to the positioning blocks 44 are arranged on the outer side wall of the positioning ring 43. The positioning blocks 44 are clamped in the positioning grooves 45 to fix the position of the positioning ring 43. The inner diameter of the positioning ring 43 is the same as the diameter of the bearing, so that the bearing can be inserted into the positioning ring 43 for fixing. A joint seam positioning block 46 is arranged on the inner side wall of the positioning ring 43, and the joint seam positioning block 46 can be inserted into the joint seam, so that the bearing after detection is fixed and cannot rotate when it is put into the positioning ring 43.

[0031] The plurality of positioning holes 42 will rotate with the rotating disk 41 to switch the workstations, so the positioning hole 42 closest to the feeding and conveying mechanism 20 is the workstation where the bearing to be tested is to be placed. Therefore, in order to ensure that the tested bearing can be directly placed in the positioning ring 43 and the joint seam positioning block 46 is also inserted into the joint seam, this can be achieved by setting the position of the joint seam positioning block 46. Specifically, the position of the joint seam positioning block 46 in the positioning ring 43 closest to the feeding and conveying mechanism 20 is located on the same side as the joint seam of the tested bearing, so that after the clamping and detecting mechanism 30 rotates to detect the joint seam of the bearing, the position of the joint seam is already at the same circumferential position as the joint seam positioning block 46, so that it can be directly translated to the top of the positioning hole 42 and then vertically descended to be placed in the positioning ring 43, and the joint seam positioning block 46 is also located in the joint seam at the same time.

[0032] Compared with the prior art, the joint seam alignment device provided by the present invention controls the three clamps 35 to clamp the bearing from the inside of the bearing through the three-claw cylinder 34, and then moves the bearing to the output direction of the sensor 38 under the drive of the two-axis moving device 32. The rotating motor 33 drives the three-claw cylinder 34 to rotate, so that the three-claw cylinder 34 grabs the bearing and rotates, so that the side walls of the bearing in different directions face the sensor 38. When the sensor 37 detects the bearing in a rotating state, the distance of the infrared irradiation when the infrared ray is irradiated on the side wall of the bearing remains unchanged. As the bearing rotates, when the infrared ray is irradiated on the bearing gap, the distance of the infrared ray irradiation will change, thereby judging that the bearing gap has been detected. In addition, the position of the joint seam positioning block 46 in the positioning ring 43 closest to the loading and conveying mechanism 20 is located on the same side as the joint seam of the bearing after detection, so that after the clamping detection mechanism 30 rotates to detect the joint seam of the bearing, the position of the joint seam is already at the same circumferential position as the joint seam positioning block 46, so that it can be directly translated to the top of the positioning hole 42 and then vertically lowered to be placed in the positioning ring 43, avoiding rotation and alignment again to cause the position of the joint seam to change.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A joint seam alignment device, the joint seam alignment device is used to detect the position of the joint seam of a bearing, the bearing is provided with a joint seam arranged along the axial direction of the bearing, characterized in that: The joint seam alignment device includes a machine platform, a feeding and conveying mechanism arranged on the machine platform, a clamping and detecting mechanism arranged on the machine platform, and a transfer mechanism arranged on the machine platform. The clamping and detecting mechanism includes a column arranged on the machine platform, a two-axis moving device arranged on the column, a rotating motor arranged on the two-axis moving device, a three-claw cylinder arranged on the rotating motor, three clamping blocks arranged on the three-claw cylinder, a sensor bracket arranged on the column, and a sensor arranged on the sensor bracket. The three-claw cylinder controls the three clamping blocks. The block clamps the bearing from the inside of the bearing, and moves the bearing to the output direction of the sensor under the drive of the two-axis moving device. The rotating motor drives the three-claw cylinder and the bearing to rotate so that the side walls of the bearing in different directions face the sensor to detect the position of the joint seam. The transfer mechanism includes a rotating disk arranged on the machine table, a plurality of positioning holes distributed circumferentially on the rotating disk, and a plurality of positioning rings arranged in the positioning holes. A joint seam positioning block is arranged on the inner side wall of the positioning ring, and the position of the joint seam positioning block in the positioning ring closest to the feeding and conveying mechanism is on the same side as the joint seam of the bearing after detection.

2. The joint alignment device according to claim 1, characterized in that: The feeding conveying mechanism includes a belt conveying device arranged on the machine platform, and a baffle arranged on the belt conveying device. The baffle is arranged at one end of the belt conveying device and is located in the conveying direction of the belt conveying device. The baffle is provided with a V-shaped groove.

3. The joint alignment device according to claim 1, characterized in that: One clamping block is respectively arranged on the output end of the three-jaw cylinder, and the three-jaw cylinder controls the three clamping blocks to move closer to or farther away from each other.

4. The joint alignment device according to claim 1, characterized in that: The sensor is an infrared sensor.

5. The joint alignment device according to claim 1, characterized in that: Two positioning blocks arranged opposite to each other are arranged on the inner side wall of the positioning hole, and two positioning grooves with shapes corresponding to the positioning blocks are arranged on the outer side wall of the positioning ring, and the positioning blocks are clamped in the positioning grooves.

6. The joint alignment device according to claim 1, characterized in that: The inner diameter of the positioning ring is the same as the diameter of the bearing.

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