Bolt positioning and conveying device

Abstract

The invention relates to the technical field of bolt production, in particular to a bolt positioning and conveying device which comprises a fixed base, a clamping and conveying mechanism used for conveying produced bolts is arranged on the fixed base, the clamping and conveying mechanism comprises pushing conveying belts, and the pushing conveying belts are symmetrically arranged on the two sides of the fixed base; the distance between every two adjacent pushing conveying belts is adjustable, and the pushing conveying belts are driven by power equipment. By means of the clamping effect of the pushing conveying belt, clamping of the produced bolts is achieved, then the pushing conveying belt is driven by the power equipment, the conveying function of the produced bolts can be achieved, and therefore stable feeding of the produced bolts can be achieved; the pushing conveying belt and the production bolt do not move relative to each other, so that the pushing conveying belt does not cause friction to the production bolt, and the problem that certain friction is easily generated in a bolt thread area in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bolt production, in particular to a bolt positioning and conveying device. Background Art

[0002] Bolt positioning and conveying is a special equipment used for accurately positioning and conveying bolts in automated production lines. It is widely used in assembly, mechanical processing, automobile manufacturing and other fields. Specifically, the bolts need to be conveyed to the target position in a specified posture.

[0003] For example, in the patent document with application number: 202221540867.2, a conveying and positioning device for non-standard bolts is disclosed, and specifically discloses the use of a vibrating conveying component to sort and convey the bolts and the use of a grabbing component to move the bolts according to a set moving trajectory, and also discloses the use of a positioning component to achieve the positioning of the bolts.

[0004] In the above technical solution, during the production process of the bolts, the bolt ends and the threaded area below directly affect the accuracy of the bolts. The use of vibration conveying will cause a certain amount of friction in the threaded area of the bolts, thereby affecting the production accuracy of the bolts and affecting the production of the bolts. Summary of the Invention

[0005] The object of the present invention is to provide a bolt positioning and conveying device.

[0006] The technical problem solved by the present invention is to solve the problem in the prior art that the vibration conveying method easily causes a certain amount of friction in the threaded area of the bolt, thereby affecting the bolt precision.

[0007] The present invention can be implemented through the following technical solution: a bolt positioning and conveying device includes a fixed base, a clamping and conveying mechanism for conveying production bolts is provided on the fixed base, the clamping and conveying mechanism includes a pushing conveyor belt, and pushing conveyor belts are symmetrically provided on both sides of the fixed base, and the distance between adjacent pushing conveyor belts is adjustable, and the pushing conveyor belt is driven by a power device.

[0008] A further technical improvement of the present invention is that the power equipment includes a pushing and conveying motor, which drives and connects the pushing and conveying rollers, and a pushing conveyor belt is arranged between adjacent pushing and conveying rollers. The pushing and conveying motor is fixedly mounted on the pushing base, and the pushing base is mounted on the output end of the pushing cylinder, and the pushing cylinder is mounted on the connecting base, and the connecting base and the fixed base are fixedly connected.

[0009] A further technical improvement of the present invention is that a bottom pushing mechanism for longitudinally pushing up the production bolts is provided at the bottom of the fixed base, and a top inspection mechanism for performing appearance inspection on the production bolts is provided above the fixed base.

[0010] A further technical improvement of the present invention is that the bottom pushing mechanism includes a pushing base, a pushing plane for supporting the production bolts is provided on the pushing base, and the pushing plane is connected to the pushing arc surface, and the pushing base is installed at the output end of the pushing motor.

[0011] A further technical improvement of the present invention is that the top detection mechanism includes a transparent support cover for supporting and limiting the production bolts, the transparent support cover is fixedly mounted on the top turntable, and a shooting base for mounting a camera is also fixed on the top turntable. The top turntable is mounted on the output end of the top motor, and the top motor is mounted on the output end of the driving telescopic rod.

[0012] A further technical improvement of the present invention is that a fixed motor is fixed inside the transparent support cover, the fixed motor is installed at the bottom of the top turntable, the fixed motor is fixedly installed on the fixed turntable, the fixed turntable and the top turntable are rotatably connected, and the output end of the fixed motor is provided with a hexagonal connection protrusion for positioning the production bolts.

[0013] A further technical improvement of the present invention is that: the fixed turntable is provided with a pulling support ring through a supporting spring, and a first clamping assembly and a second clamping assembly are provided below the pulling support ring, and the height of the first clamping assembly is higher than the second clamping assembly, and the first clamping assembly and the second clamping assembly are respectively connected to the pulling support ring in a relative sliding manner, and the fixed ends of the first clamping assembly and the second clamping assembly are fixed on the transparent support cover.

[0014] A further technical improvement of the present invention is that the first clamping member includes a first clamping ring, the first clamping ring and the pulling support ring are fixedly connected, and a rotating clamping rod is slidably provided on the first clamping ring, a clamping plate is slidably provided on the rotating clamping rod through a clamping cylinder, and the rotating clamping rod is fixedly installed inside the transparent support cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present application utilizes the clamping effect of the push conveyor belt to achieve the clamping of the production bolts, and then uses the power equipment to drive the push conveyor belt to realize the conveying function of the production bolts, thereby achieving stable loading of the production bolts. During this process, the push conveyor belt and the production bolts do not move in relative position, so the push conveyor belt will not cause friction to the production bolts, thereby solving the problem in the prior art that the bolt thread area is prone to certain friction.

[0017] 2. The present application utilizes a top detection mechanism to achieve the relative clamping function of the production bolts by utilizing the cooperation of the first clamping assembly and the second clamping assembly, and then utilizes the hexagonal connecting protrusion and the hexagonal groove of the production bolt for snap-fitting to determine the position of the production bolts. Subsequently, the production bolts and the transparent support cover are used to generate relative rotation, and the production bolts are photographed using a camera, thereby obtaining more accurate appearance inspection results of the production bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of a bolt production process device of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the clamping and conveying mechanism of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the top detection mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the bottom push-up mechanism structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the position of the internal clamping component of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the internal clamping assembly of the present invention.

[0025] In the figure: 1. Fixed base; 2. Connecting base; 3. Bottom pushing mechanism; 31. Pushing motor; 32. Pushing base; 33. Pushing plane; 34. Pushing arc surface; 35. Pushing shaft; 4. Clamping and conveying mechanism; 41. Pushing cylinder; 42. Pushing base; 43. Pushing conveyor belt; 44. Pushing conveying motor; 45. Pushing conveying roller; 5. Production bolt; 6. Top detection mechanism; 61. Top motor; 62. Top turntable; 63. Shooting base; 64. Transparent support cover; 65. Top mounting base; 66. Internal clamping Components; 661, fixed motor; 662, fixed turntable; 663, support spring; 664, pulling rod; 665, pulling limit base; 666, internal rotating shaft; 667, hexagonal connecting protrusion; 668, rotation limit groove; 669, rotating clamping rod; 6610, clamping mounting seat; 6611, clamping cylinder; 6612, clamping sliding rod; 6613, clamping plate; 6614, second clamping ring; 6615, clamping connecting bracket; 6616, first clamping ring; 6617, longitudinal base; 6618, pulling support ring. DETAILED DESCRIPTION

[0026] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0027] See also Figure 1-6 As shown, the bolt positioning and conveying device includes a fixed base 1, a movable groove for realizing the movement and limiting of the production bolt 5 is opened on the fixed base 1, and a connecting base 2 is fixed on the side of the fixed base 1, and a clamping and conveying mechanism 4 for clamping and conveying the production bolt 5 is provided on the connecting base 2. The production bolt 5 is conveyed by the clamping and conveying mechanism 4, and a bottom pushing mechanism 3 for lifting the production bolt 5 is provided below the fixed base 1, and a top detection mechanism for detecting the production bolt 5 is provided above the bottom pushing mechanism 3. Mechanism 6, when in use, first uses the clamping and conveying mechanism 4 to realize the movement and conveyance of the production bolts 5 located inside the movable groove, so that the production bolts 5 are stably conveyed in the movable groove until the production bolts 5 are moved to the position of the bottom pushing mechanism 3, and the bottom pushing mechanism 3 is started to move the production bolts 5 upward to the inside of the top detection mechanism 6, and the top detection mechanism 6 is used to realize defect detection of the production bolts 5, and after detection, the production bolts 5 are placed back to the position of the clamping and conveying mechanism 4, and the clamping and conveying mechanism 4 is used to realize unloading of the production bolts 5.

[0028] As a further embodiment of the present application, the clamping and conveying mechanism 4 includes a pushing cylinder 41, a clamping groove is opened on the connecting base 2, a pushing base 42 is fixed on the side of the clamping groove, a pushing cylinder 41 is installed on the pushing base 42, and a pushing and conveying motor 44 is fixed at the output end of the pushing cylinder 41, and the pushing and conveying motor 44 drives the connected pushing and conveying roller 45, and a pushing conveyor belt 43 is provided on the adjacent pushing and conveying roller 45. When in use, the pushing and conveying motor 44 is used to drive the connected pushing and conveying roller 45 to rotate the pushing conveyor belt 43, and then the pushing cylinder 41 is used to control the distance between adjacent pushing conveyor belts 43, so that the pushing conveyor belts 43 move in the same direction until the pushing conveyor belts 43 are clamped at the position of the production bolts 5, and the conveying effect of the pushing conveyor belts 43 is used to realize the conveyance of the production bolts 5.

[0029] Furthermore, the bottom pushing mechanism 3 includes a pushing motor 31, wherein the pushing motor 31 is fixedly mounted on the frame, and the pushing motor 31 drives the connected pushing shaft 35, and at the same time a pushing base 32 is fixed on the pushing shaft 35, wherein the pushing base 32 is provided with a pushing plane 33 and a pushing arc surface 34. When in use, the pushing motor 31 is used to drive the pushing shaft 35 to control the rotation of the pushing base 32, so that the pushing plane 33 used to support the production bolt 5 gradually rotates. At this time, the production bolt 5 is longitudinally limited by the top detection mechanism 6, so that the production bolt 5 is always in a vertical state, and then the pushing arc surface 34 is used to rotate to the bottom of the production bolt 5 until the production bolt 5 is rotated to the highest end, and the top detection mechanism 6 is used to detect the production bolt 5.

[0030] In the present application, the top detection mechanism 6 includes a top motor 61, which is fixed at the output end of the telescopic rod, and the height of the top motor 61 is controlled by the telescopic rod. At the same time, the top motor 61 drives a top turntable 62, on which a shooting base 63 is fixedly mounted. At the same time, a transparent support cover 64 is provided on the top turntable 62, and the transparent support cover 64 is used to limit the production bolts 5. At the same time, an internal clamping component 66 is also provided inside the transparent support cover 64, and the internal clamping component 66 is used to clamp and fix the production bolts 5. At the same time, the relative rotation of the internal clamping component 66 and the shooting base 63 is used to fully shoot all surfaces of the production bolts 5, that is, a camera for shooting and detecting the production bolts 5 is fixed on the shooting base 63, so that the algorithm is used to simulate the appearance of the production bolts 5, and then the appearance defect detection of the production bolts 5 is realized to ensure the detection accuracy of the production bolts 5. When in use, the transparent support cover 64 is first used to realize the limiting function of the production bolt 5, and then the internal clamping component 66 is used to realize the clamping rotation of the production bolt 5, so that the production bolt 5 rotates relative to the shooting base 63, and the production bolt 5 is photographed by the camera on the shooting base 63, so that the algorithm is used to simulate the appearance of the production bolt 5, and then the appearance defect detection of the production bolt 5 is realized.

[0031] Furthermore, the internal clamping assembly 66 includes a fixed motor 661, wherein the fixed motor 661 is fixedly mounted on the top turntable 62, and the output end of the fixed motor 661 is fixed with a fixed turntable 662, and at the same time, a hexagonal connecting protrusion 667 for realizing end position limiting of the production bolt 5 is fixedly provided in the middle of the fixed turntable 662 through an internal rotating shaft 666, and in the present application, a clamping member for clamping the production bolt 5 is also provided, that is, the clamping member is fixed inside the transparent support cover 64, and when in use, the clamping member is used to clamp the production bolt 5, and During this process, the fixed motor 661 is rotated to rotate the hexagonal connection protrusion 667. After the hexagonal connection protrusion 667 is rotated to a certain angle, the hexagonal connection protrusion 667 is controlled to land in the inner hexagonal groove of the production bolt 5, thereby realizing the limiting function of the production bolt 5. Then, the fixed motor 661 continues to rotate to drive the production bolt 5 to rotate, so that the appearance of the production bolt 5 can be inspected to realize automatic detection of appearance defects of the production bolt 5, so that the yield rate of the production bolt 5 entering the next step is high, and production efficiency is guaranteed.

[0032] Therefore, several pulling rods 664 are fixed on the fixed turntable 662, and a pulling limit base 665 is provided at the end of the pulling rod 664. The pulling rod 664 passes through a pulling support ring 6618, and a supporting spring 663 is fixed between the pulling support ring 6618 and the fixed turntable 662. When in use, the support spring 663 is used to ensure that the pulling support ring 6618 always has a force away from the fixed turntable 662, thereby achieving the position limitation of the hexagonal connecting protrusion 667. During use, when the top of the production bolt 5 enters the position of the pulling support ring 6618, the top of the production bolt 5 contacts the hexagonal connecting protrusion 667, and then the clamping part is used to clamp the production bolt 5. At the same time, the fixed motor 661 is used to drive the rotation of the hexagonal connecting protrusion 667 until the hexagonal connecting protrusion 667 and the hexagonal groove of the production bolt 5 are in position. Then, the telescopic rod is started to control the overall height of the top detection mechanism 6 until the hexagonal connecting protrusion 667 is directly limited and matched with the hexagonal groove. Then, the fixed motor 661 is used to drive the rotation of the production bolt 5. At this time, the production bolt 5 is photographed by a camera to realize the appearance inspection of the production bolt 5.

[0033] Specifically, the clamping member includes a longitudinal base 6617, wherein the longitudinal base 6617 is fixedly installed below the pulling support ring 6618, and a first clamping ring 6616 is fixedly installed on the longitudinal base 6617, and the first clamping ring 6616 is rotatably connected to the transparent support cover 64. At the same time, a plurality of first clamping members are slidably arranged on the first clamping ring 6616, and a clamping connection bracket 6615 is fixedly installed on the side of the first clamping ring 6616. A second clamping ring 6614 is fixed on the clamping connection bracket 6615, wherein the size of the second clamping ring 6614 is smaller than that of the first clamping ring 6616, and a plurality of first clamping members are slidably arranged on the second clamping ring 6614. The second clamping member, and the fixed ends of the first clamping member and the second clamping member are fixedly connected to the transparent support cover 64, that is, when in use, the first clamping member and the second clamping member are respectively clamped at different positions of the production bolt 5, the first clamping member is clamped at the end limit of the production bolt 5, and the second clamping member is clamped at the threaded area of the production bolt 5, so that different positions of the production bolt 5 can be clamped respectively. By using the first clamping member and the second clamping member to clamp different positions of the production bolt 5 respectively, each position of the production bolt 5 can be accurately detected, avoiding the shooting interference problem caused by the first clamping member and the second clamping member to each position of the production bolt 5.

[0034] The structures of the first clamping member and the second clamping member are the same. The first clamping member is taken as an example for explanation. The first clamping member includes a rotating clamping rod 669, and a rotating limit groove 668 is opened on the first clamping ring 6616, wherein the rotating limit groove 668 and the rotating clamping rod 669 are slidingly connected, and the sliding path is annular. A clamping cylinder 6611 is fixed on the rotating clamping rod 669, wherein the output end of the clamping cylinder 6611 is fixed with a clamping mounting seat 6610, and a clamping sliding rod 6612 is fixed on the side of the clamping mounting seat 6610, and the clamping sliding rod 6612 is slidingly connected to the rotating clamping rod 669. At the same time, a clamping plate 6613 for clamping and fixing the production bolt 5 is fixed at the end of the clamping sliding rod 6612. When in use, the clamping cylinder 6611 is used to control the lateral position of the clamping mounting seat 6610, thereby controlling the sliding of the clamping sliding rod 6612 on the rotating clamping rod 669, thereby controlling the distance between the clamping plates 6613, so that the clamping plates 6613 can be directly clamped on the production bolt 5, thereby achieving clamping and fixing of the production bolt 5, and in this application, the rotating clamping rod 669 is installed inside the transparent support cover 64 through a long strip connecting frame.

[0035] When the present invention is in use, the production bolts 5 are firstly uniformly loaded through the fixed base 1, and then the pushing conveying motor 44 is used to drive the connected pushing conveying roller 45 to rotate the pushing conveyor belt 43, and then the pushing cylinder 41 is used to control the distance between adjacent pushing conveyor belts 43, so that the pushing conveyor belts 43 move in the same direction until the pushing conveyor belts 43 are clamped at the position of the production bolts 5, and the conveying effect of the pushing conveyor belts 43 is used to realize the conveying of the production bolts 5 until the production bolts 5 are conveyed to the position of the bottom pushing mechanism 3, at this time, the pushing cylinder 41 releases the clamping effect on the production bolts 5, and the pushing motor 31 is used to drive the pushing shaft 35 to control the rotation of the pushing base 32, so that the pushing plane 33 for receiving the production bolts 5 gradually rotates, and at this time, the production bolts 5 are longitudinally limited by the top detection mechanism 6, so that the production bolts 5 are always in a vertical state, and then the pushing arc surface 34 is used to rotate to the bottom of the production bolts 5 until the production bolts 5 are rotated to the highest end, and the production bolts 5 are detected by the top detection mechanism 6;

[0036] In the above process, under the action of the telescopic rod, the transparent support cover 64 moves downward. When the production bolt 5 moves in the longitudinal direction, the end of the production bolt 5 is directly restricted in the inside of the transparent support cover 64, and the production bolt 5 directly contacts the clamping part of the second clamping ring 6614. The second clamping piece on the second clamping ring 6614 is used to limit the production bolt 5 in the vertical direction until the production bolt 5 reaches the highest point under the action of the pushing arc surface 34. At this time, the production bolt 5 reaches the position of the hexagonal connection protrusion 667, and then the telescopic rod is used to control the height of the top detection mechanism 6, so that the production bolt 5 and the hexagonal connection protrusion 667 are squeezed to a certain extent. At this time, the fixed motor 661 is started to drive the hexagonal connection protrusion 667 to rotate until the hexagonal connection protrusion 667 and the hexagonal groove are matched to achieve the limitation of the position of the production bolt 5. At this time, the support spring 663 is always in a compressed state, and then the production bolt 5 is detected;

[0037] During inspection, the end of the production bolt 5 is first clamped by the first clamping member. At this time, the threaded area of the production bolt 5 can rotate along with the rotation of the hexagonal connection protrusion 667. The camera takes a picture of the threaded area of the production bolt 5 through the transparent support cover 64 for inspection, thereby being able to construct the shape of the production bolt 5 and determine whether there are defects in the threaded area of the production bolt 5.

[0038] Then, the first clamping member releases the clamping function on the end of the production bolt 5, and the second clamping member is used to clamp the production bolt 5. At this time, the top of the production bolt 5 can rotate along with the rotation of the hexagonal connection protrusion 667. The camera takes a picture of the top of the production bolt 5 through the transparent support cover 64 to detect the top of the production bolt 5, thereby realizing the shape of the production bolt 5. It is possible to determine whether there is a defect in the top of the production bolt 5, so that the shape of the production bolt 5 can be accurately constructed.

[0039] Furthermore, when the first clamping member and the second clamping member are in action, the clamping cylinder 6611 is used to control the lateral position of the clamping mounting seat 6610, thereby controlling the sliding of the clamping sliding rod 6612 on the rotating clamping rod 669, thereby controlling the distance between the clamping plates 6613, so that the clamping plates 6613 can be directly clamped on the production bolt 5, thereby achieving clamping and fixing the production bolt 5. When the first clamping member and the second clamping member both release the clamping effect on the production bolt 5, under the action of the rebound force of the support spring 663, the production bolt 5 can be pressed down on the fixed base 1, and at this time, the push cylinder 41 is pushed to restore the clamping effect on the production bolt 5, and the production bolt 5 is transported.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A bolt positioning and conveying device, comprising a fixed base (1), on which a clamping and conveying mechanism (4) for conveying production bolts (5) is provided, characterized in that: The clamping conveyor mechanism (4) includes a pushing conveyor belt (43), and the pushing conveyor belts (43) are symmetrically arranged on both sides of the fixed base (1), and the distance between adjacent pushing conveyor belts (43) is adjustable. The pushing conveyor belts (43) are driven by a power device.

2. The bolt positioning and conveying device according to claim 1, characterized in that: The power device includes a pushing and conveying motor (44), the pushing and conveying motor (44) drives and connects pushing and conveying rollers (45), a pushing and conveying belt (43) is provided between adjacent pushing and conveying rollers (45), the pushing and conveying motor (44) is fixedly mounted on a pushing base (42), and the pushing base (42) is mounted on the output end of a pushing cylinder (41), the pushing cylinder (41) is mounted on a connecting base (2), and the connecting base (2) and the fixed base (1) are fixedly connected.

3. The bolt positioning and conveying device according to claim 1, characterized in that: A bottom pushing mechanism (3) for longitudinally pushing up the production bolts (5) is provided at the bottom of the fixed base (1), and a top inspection mechanism (6) for performing appearance inspection on the production bolts (5) is provided above the fixed base (1).

4. The bolt positioning and conveying device according to claim 3, characterized in that: The bottom pushing mechanism (3) includes a pushing base (32), a pushing plane (33) for supporting the production bolts (5) is provided on the pushing base (32), and the pushing plane (33) is connected to the pushing arc surface (34), and the pushing base (32) is installed at the output end of the pushing motor (31).

5. The bolt positioning and conveying device according to claim 3, characterized in that: The top detection mechanism (6) includes a transparent support cover (64) for supporting and limiting the production bolts (5); the transparent support cover (64) is fixedly mounted on a top turntable (62); a shooting base (63) for mounting a camera is also fixed on the top turntable (62); the top turntable (62) is mounted on the output end of a top motor (61), and the top motor (61) is mounted on the output end of a driving telescopic rod.

6. The bolt positioning and conveying device according to claim 5, characterized in that: A fixed motor (661) is fixed inside the transparent support cover (64), and the fixed motor (661) is installed at the bottom of the top turntable (62). The fixed motor (661) is fixedly installed on the fixed turntable (662), and the fixed turntable (662) and the top turntable (62) are rotatably connected. The output end of the fixed motor (661) is provided with a hexagonal connection protrusion (667) for positioning the production bolt (5).

7. The bolt positioning and conveying device according to claim 6, characterized in that: The fixed turntable (662) is provided with a pulling support ring (6618) via a supporting spring (663), and a first clamping assembly and a second clamping assembly are provided below the pulling support ring (6618), and the height of the first clamping assembly is higher than that of the second clamping assembly, and the first clamping assembly and the second clamping assembly are respectively connected to the pulling support ring (6618) in a relative sliding manner, and the fixed ends of the first clamping assembly and the second clamping assembly are fixed on the transparent support cover (64).

8. The bolt positioning and conveying device according to claim 7, characterized in that: The first clamping member includes a first clamping ring (6616), the first clamping ring (6616) and the pulling support ring (6618) are fixedly connected, and a rotating clamping rod (669) is slidably provided on the first clamping ring (6616), and a clamping plate (6613) is slidably provided on the rotating clamping rod (669) through a clamping cylinder (6611), and the rotating clamping rod (669) is fixedly installed inside the transparent support cover (64).

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