Radial runout detection device

Abstract

The embodiment of the utility model provides a radial runout detection device, and relates to the technical field of tolerance detection. The radial runout detection device comprises a rack, a placing table, a rotary flange and a plurality of detection heads, the placing table is arranged on the rack and used for placing a workpiece, the rotary flange is pressed on the workpiece and used for driving the workpiece to rotate, the multiple detection heads are arranged in the circumferential direction of the workpiece and located on the lower portion of the rotary flange, and the multiple detection heads are arranged on the rack. As the detection head is arranged close to the workpiece, compared with the direct use of a dial indicator for detection, the detection head can detect the radial runout value of the workpiece more accurately, and the detection precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of tolerance detection, and more specifically, to a runout detection device. Background Art

[0002] For a rotating transmission workpiece (hereinafter referred to as workpiece) to meet the transmission stability, it is necessary to detect the runout value of the workpiece to determine whether the workpiece is qualified. The existing runout value detection methods mostly use a dial indicator for direct detection, which has a large detection error and low detection accuracy. Summary of the Utility Model

[0003] The utility model provides a runout detection device to solve the problem that the existing detection method is inaccurate in detecting the runout value of the workpiece.

[0004] The embodiments of the utility model can be implemented as follows:

[0005] The embodiments of the utility model provide a runout detection device, which includes:

[0006] A frame; and

[0007] A placement table, which is arranged on the frame and is used for placing the workpiece;

[0008] A rotating flange, which is pressed on the workpiece and is used for driving the workpiece to rotate;

[0009] A plurality of detection heads, which are arranged around the circumference of the workpiece and are located below the rotating flange.

[0010] Optionally, a detection component is arranged on the frame. The detection component includes a detection plate, a Y-axis driving member and the detection head. The detection head is arranged on the detection plate, and the detection plate is connected with the Y-axis driving member. The Y-axis driving member drives the detection plate to move along the Y direction.

[0011] Optionally, the runout detection device includes a rotation driving member and a transmission rod. The transmission rod is connected with the rotation driving member and is movably connected with the rotating flange.

[0012] Optionally, the frame is provided with a first lifting driving member and a connecting plate. The first lifting driving member is used for driving the connecting plate to move along the Z direction, and the rotation driving member is arranged on the connecting plate.

[0013] Optionally, a Z-axis slide rail is arranged on the frame, and a Z-axis slider is slidably arranged on the Z-axis slide rail. The connecting plate is connected with the Z-axis slider.

[0014] Optionally, the runout detection device further includes an axial pressing component, which is arranged on the frame and is used for axially pressing the rotating flange and the workpiece.

[0015] Optionally, the axial pressure component includes a plurality of pressure rods. The plurality of pressure rods are connected to a connecting plate, and the plurality of pressure rods are evenly distributed on the connecting plate. The pressure rods are movably connected to the rotating flange.

[0016] Optionally, a grooved plate is provided on the connecting plate, and the pressure rod is slidably matched with the grooved plate.

[0017] Optionally, a second lifting driving member is provided on the machine frame. The placing table is connected to the second lifting driving member, and the second lifting driving member is used to push the placing table to move along the Z direction.

[0018] Optionally, the number of the detection heads is two, and the two detection heads are symmetrically arranged on the radial two sides of the workpiece.

[0019] The beneficial effects of the runout detection device according to the embodiment of the present utility model include, for example:

[0020] The runout detection device includes a machine frame, a placing table, a rotating flange and a plurality of detection heads. The placing table is arranged on the machine frame and is used for placing a workpiece. The rotating flange presses on the workpiece and is used to drive the workpiece to rotate. The plurality of detection heads are arranged around the circumference of the workpiece, and the plurality of detection heads are located below the rotating flange. Since the detection heads are arranged near the workpiece, compared with directly using a micrometer for detection, the detection heads can detect the runout value of the workpiece more accurately and with higher detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the runout detection device provided in the embodiment of the present utility model;

[0023] Figure 2 It is the first view of the runout detection device provided in the embodiment of the present utility model with the machine frame hidden;

[0024] Figure 3 It is the second view of the runout detection device provided in the embodiment of the present utility model with the machine frame hidden;

[0025] Figure 4 It is a schematic structural diagram of the machine frame provided in the embodiment of the present utility model;

[0026] Figure 5 It is a schematic structural diagram of the radial clamping member, the X-direction slide rail and the X-direction slider provided in the embodiment of the present utility model;

[0027] Figure 6 Schematic diagram of the positional relationship between the detection component and the radial clamping member provided in the embodiment of the present utility model;

[0028] Figure 7 Schematic diagram of the positional relationship between the detection head and the workpiece provided in the embodiment of the present utility model;

[0029] Figure 8 Schematic diagram of the connection structure between the rotary drive member and the transmission rod provided in the embodiment of the present utility model;

[0030] Figure 9 Schematic diagram of the structure of the axial pressure applying assembly provided in the embodiment of the present utility model;

[0031] Figure 10 Schematic diagram of the structure of the connecting plate provided in the embodiment of the present utility model.

[0032] Icon: 10 - frame; 101 - first lifting drive member; 102 - push rod; 103 - Z-direction slide rail; 104 - Z-direction slider; 105 - connecting plate; 20 - placement table; 201 - second lifting drive member; 202 - telescopic rod; 30 - rotary flange; 40 - detection component; 401 - detection plate; 402 - detection head; 403 - Y-axis drive member; 404 - Y-direction slide rail; 405 - connecting block; 406 - Y-direction slider; 50 - rotary drive member; 501 - transmission rod; 502 - positioning block; 503 - mounting flat plate; 60 - axial pressure applying assembly; 601 - pressure rod; 602 - sliding member; 603 - grooved plate; 6031 - chute; 604 - vertical plate; 605 - adjusting screw; 606 - fixing strip; 70 - radial clamping member; 701 - mounting base plate; 702 - X-direction slide rail; 703 - X-direction slider; 704 - push cylinder; 705 - lifting cylinder; 80 - workpiece. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it is not necessary to further define and explain it in subsequent figures.

[0036] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the product of the present utility model is habitually placed during use. This is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0037] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0039] Unless otherwise clearly specified and defined, terms such as "arranged", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] It should be noted that, without conflict, the features in the embodiments of the present utility model can be combined with each other.

[0041] The rotating transmission workpiece (hereinafter referred to as the workpiece) needs to meet the transmission stability, and it is necessary to detect the runout value of the workpiece to determine whether the workpiece is qualified. The existing runout value detection methods mostly use a dial indicator for direct detection, which has a large detection error and low detection accuracy.

[0042] The runout detection device provided in the embodiments of the present utility model can solve the above problems, and will be described in detail below.

[0043] Please refer to Figures 1 to 4 , the runout detection device includes a frame 10, a placement table 20, a rotating flange 30, a detection assembly 40, an axial pressing assembly 60, a rotating drive 50, and a radial clamping member 70. The placement table 20 is disposed on the frame 10, and the frame 10 is used to provide an installation and connection position for the placement table 20, the rotating flange 30, and the detection head 402. The placement table 20 is used to place the workpiece 80; the rotating flange 30 presses on the workpiece 80, on the one hand, it plays a role in applying axial pressure, and on the other hand, it drives the workpiece 80 to rotate; the detection assembly 40 includes a plurality of detection heads 402, and the plurality of detection heads 402 are arranged circumferentially around the workpiece 80 and are located below the rotating flange 30, and are used to detect the diameter of the workpiece 80 before and after rotation and the runout value during the rotation process. More specifically, the plurality of detection heads 402 are arranged on the radial outer side of the workpiece 80. Since the detection heads 402 are arranged close to the radial outer side of the workpiece 80, the detection of the runout value of the workpiece 80 is more accurate; the axial pressing assembly 60 is used to apply axial pressure to the workpiece 80 during rotation to prevent the workpiece 80 from generating axial runout during rotation; the radial clamping member 70 is used to radially clamp the workpiece 80.

[0044] Specifically, the frame 10 has a U-shaped frame structure, with a hollow cavity formed in the middle. The upper part above the hollow cavity is the upper table, and the lower part below the hollow cavity is the lower table. The placement table 20 is located in the hollow cavity and is installed on the lower table. The rotating flange 30 is arranged above the workpiece 80. The placement table 20 and the rotating flange 30 jointly limit the workpiece 80 axially. A groove is formed on one side of the rotating flange 30 that is in contact with the workpiece 80, and the groove is adapted to the shape and size of the workpiece 80, so as to clamp the workpiece 80 and drive the workpiece 80 to rotate together.

[0045] In order to enable the workpiece 80 on the placement table 20 to move up and down and adjust the distance between the rotating flange 30 and the axial pressing assembly 60, a second lifting drive 201 and a telescopic rod 202 are provided at the lower part of the placement table 20. One end of the telescopic rod 202 is connected to the second lifting drive 201, and the other end of the telescopic rod 202 is connected to the placement table 20 through a bearing. When the second lifting drive 201 works, it drives the telescopic rod 202 to move up and down, and then pushes the placement table 20 to move up and down to achieve the purpose of moving the workpiece 80 up and down.

[0046] Furthermore, the second lifting drive 201 is a cylinder or a hydraulic cylinder. The telescopic rod 202 can be a piston rod. One end of the piston rod is slidably matched with the cylinder body of the cylinder or the hydraulic cylinder, and the other end is sleeved with a bearing and is connected to the placement table 20 through the bearing. The bearing here can be a plain bearing.

[0047] Refer to Figure 5, an installation base plate 701 is provided on the lower table of the frame 10, and the installation base plate 701 is connected to the frame 10 by screws or bolts. Radial clamping members 70 are arranged on the installation base plate 701. The radial clamping members 70 are flat plates, and the number of the radial clamping members 70 is two. The two radial clamping members 70 are arranged oppositely, and arc-shaped grooves are formed on the opposite sides for radially clamping the workpiece 80. Specifically, an X-direction slide rail 702 is further provided on the installation base plate 701. The number of the X-direction slide rails 702 is four. The four X-direction slide rails 702 are parallel and arranged at intervals. The lengths and dimensions of the four X-direction slide rails 702 are the same. An X-direction slider 703 is slidably arranged on each of the four X-direction slide rails 702. Two X-direction sliders 703 on the same side and in parallel are connected together by a connecting plate. The two radial clamping members 70 are respectively connected to the two connecting plates. The two connecting plates are also respectively connected to two push cylinders 704. When the push cylinders 704 work, the X-direction sliders 703 slide on the X-direction slide rails 702, driving the connected connecting plates to move, and further driving the two radial clamping members 70 to move relatively, so as to realize radial clamping or radial loosening of the workpiece 80.

[0048] Furthermore, lifting cylinders 705 are provided on both connecting plates. The radial clamping members 70 are connected to the lifting cylinders 705. When the lifting cylinders 705 work, the radial clamping members 70 are lifted up and down to synchronously meet the up and down lifting of the workpiece 80 driven by the second lifting driving member 201, so that the radial clamping members 70 can always clamp the workpiece 80. In practice, the lifting cylinders 705 work synchronously with the second lifting driving member 201, and the lifting height of the lifting cylinders 705 is the same as the lifting height of the second lifting driving member 201.

[0049] Also refer to Figure 6 , Figure 7 and Figure 2, the detection component 40 is arranged in the hollow cavity of the frame 10, and is used to detect the radial runout value of the workpiece 80. The detection component 40 includes a detection plate 401, a plurality of detection heads 402, a Y-axis driving member 403, a Y-direction slide rail 404, a connecting block 405, and a Y-direction slide block 406; the plurality of detection heads 402 are distributed at the end of the detection plate 401 and are arranged at intervals around the radial outer side of the workpiece 80. In this embodiment, the number of detection heads 402 is two, which are symmetrically distributed on the radial outer side of the workpiece 80. The detection heads 402 are connected to the workpiece 80 but do not block the expansion and runout of the workpiece 80 at the radial upper limit position, so as to achieve the goal of more accurately detecting the radial runout value of the workpiece 80; the detection plate 401 is away from the side of the detection head 402 At the same time, it is connected to the connection block 405 and the Y-axis slider 406. The connection block 405 is connected to the Y-axis driving member 403. The Y-axis slider 406 is two pieces. The Y-axis slide rail 404 is two pieces arranged in parallel. The two Y-axis sliders 406 are slidably arranged on the Y-axis slide rail 404. When the Y-axis driving member 403 applies a Y-direction force to the connection block 405, it will push the Y-axis slider to slide along the Y-axis slide rail, thereby driving the detection plate 401 to move, so as to realize the movement of the detection head 402 radially outward of the workpiece 80, which is convenient for installing and disassembling the workpiece 80 and getting closer to the workpiece 80. The Y-axis driving member 403 here can be a cylinder. The detection head 402 here can be a displacement sensor.

[0050] Reference again Figure 1 and Figure 2 The hollow cavity of the frame 10 is provided with a Z-direction slide rail 103 perpendicular to the mounting base plate 701. There are two Z-direction slide rails 103. The two Z-direction slide rails 103 are arranged in parallel and connected to the frame 10. Z-direction sliders 104 are slidably provided on the two Z-direction slide rails 103. The Z-direction slider 104 is connected with a connecting plate 105, and the connecting plate 105 moves up and down with the Z-direction slider 104; the rotary drive member 50 and the axial pressure assembly 60 are arranged on the connecting plate 105 and move synchronously with the connecting plate 105.

[0051] Specifically, a first lifting drive member 101 is arranged on the frame 10, and the first lifting drive member 101 is connected to a push rod 102, and the push rod 102 is also connected to the connecting plate 105. When the first lifting drive member 101 is working, a Z-direction force is generated, and the connecting plate 105 is pushed to move in the Z-axis direction through the push rod 102.

[0052] refer to Figure 8, the rotation driving member 50 is arranged on the connecting plate 105. A transmission rod 501 is connected to the output end of the rotation driving member 50. The lower end of the transmission rod 501 is inserted into the hole in the middle of the rotation flange 30 to drive the rotation of the shape flange. The rotation driving member 50 is installed on the installation flat plate 503. Four support columns are connected to the lower part of the installation flat plate 503, and the support columns are connected to the connecting plate 105. A positioning block 502 is also arranged on the connecting plate 105. The positioning block 502 is sleeved outside the transmission rod 501 and is connected to the transmission rod 501 through a ball bearing to ensure the stability of the transmission. The rotation driving member 50 in this embodiment is a servo motor.

[0053] Reference Figure 9 And Figure 10 , an axial pressure applying assembly 60 is also arranged on the connecting plate 105. The axial pressure applying assembly 60 is used to axially apply pressure to the rotation flange 30 and the workpiece 80. The axial pressure applying assembly 60 includes two parts symmetrically arranged with the transmission rod 501 as the center. The two parts of the axial pressure applying assembly 60 apply pressure to the rotation flange 30 simultaneously to achieve balanced pressure application.

[0054] The axial pressure applying assembly 60 includes a plurality of pressure rods 601. The plurality of pressure rods 601 are all connected to the connecting plate 105, and the plurality of pressure rods 601 are evenly distributed on the connecting plate 105. The pressure rods 601 are driven to move by the first lifting driving member 101 to achieve movable connection with the rotation flange 30, so as to apply pressure to the rotation flange 30 or separate from the rotation flange 30.

[0055] The axial pressure applying assembly 60 further includes a sliding member 602, a grooved plate 603, a vertical plate 604, an adjusting screw 605 and a fixing strip 606. The grooved plate 603 is connected to the vertical plate 604, the vertical plate 604 is connected to the connecting plate 105. A chute 6031 is formed on the grooved plate 603. The upper end of the sliding member 602 is stuck in the chute 6031 to realize that the sliding member 602 can slide relative to the grooved plate 603; one end of the pressure rod 601 is connected to the sliding member 602, and the other end is connected to the rotation flange 30. When the sliding member 602 moves, the pressure rod 601 also moves accordingly. The chute 6031 on the grooved plate 603 is formed along the radial direction of the rotation flange 30 to realize the radial movement of the pressure rod 601 on the rotation flange 30.

[0056] Specifically, a fixing strip 606 is fixedly connected to the lower part of the grooved plate 603. The fixing strip 606 and the sliding member 602 are arranged at intervals. Threaded holes are formed on the fixing strip 606. One end of the adjusting screw 605 is fixed on the sliding member 602, and the other end of the adjusting screw 605 passes through the threaded hole on the fixing strip 606 to realize threaded connection with the fixing strip 606. When the adjusting screw 605 is rotated, the sliding member 602 can be pushed to slide along the chute 6031, and further drive the pressure rod 601 to move radially on the rotation flange 30.

[0057] It should be noted that, in this embodiment, the axial pressure applied by the axial pressure assembly 60 to the rotating flange 30 is generated by the first lifting drive 101; in other embodiments, a cylinder or a hydraulic cylinder independent of the first lifting drive 101 can be provided to independently apply pressure to the rotating flange 30.

[0058] The runout detection device of the present utility model is provided with a frame 10, a placement table 20, a rotating flange 30 and a detection head 402. The placement table 20 is arranged on the frame 10 and is used for placing a workpiece 80. The rotating flange 30 presses on the workpiece 80 and is used to drive the workpiece 80 to rotate. The detection head 402 is arranged on the radial outside of the workpiece 80 and below the rotating flange 30, and is used to detect the diameter of the workpiece 80 before and after rotation and the runout value during rotation. Since the detection head 402 is arranged close to the radial outside of the workpiece 80, the detection of the runout value of the workpiece 80 is more accurate.

[0059] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A runout detection device, characterized in that, Comprising: A frame (10); And A placement table (20), the placement table (20) is arranged on the frame (10), and the placement table (20) is used for placing a workpiece (80); A rotating flange (30), the rotating flange (30) presses on the workpiece (80), and the rotating flange (30) is used to drive the workpiece (80) to rotate; A plurality of detection heads (402), the plurality of detection heads (402) are arranged circumferentially around the workpiece (80), and the plurality of detection heads (402) are located below the rotating flange (30).

2. The runout detection device according to claim 1, wherein A detection assembly (40) is arranged on the frame (10), the detection assembly (40) includes a detection plate (401), a Y-axis driving member (403) and the detection head (402), the detection head (402) is arranged on the detection plate (401), the detection plate (401) is connected to the Y-axis driving member (403), and the Y-axis driving member (403) drives the detection plate (401) to move in the Y direction.

3. The runout detection device according to claim 1, wherein The runout detection device includes a rotation driving member (50) and a transmission rod (501), the transmission rod (501) is connected to the rotation driving member (50), and the transmission rod (501) is movably connected to the rotating flange (30).

4. The runout detection device according to claim 3, wherein The frame (10) is provided with a first lifting driving member (101) and a connecting plate (105), the first lifting driving member (101) is used to drive the connecting plate (105) to move in the Z direction, and the rotation driving member (50) is arranged on the connecting plate (105).

5. The runout detection device according to claim 4, wherein A Z-axis slide rail (103) is arranged on the frame (10), a Z-axis slider (104) is slidably arranged on the Z-axis slide rail (103), and the connecting plate (105) is connected to the Z-axis slider (104).

6. The runout detection device according to claim 4, characterized in that, The runout detection device further includes an axial pressing assembly (60), the axial pressing assembly (60) is arranged on the frame (10), and the axial pressing assembly (60) is used to axially press the rotating flange (30) and the workpiece (80).

7. The runout detection device according to claim 6, wherein The axial pressing assembly (60) includes a plurality of pressing rods (601), the plurality of pressing rods (601) are connected to the connecting plate (105), and the plurality of pressing rods (601) are evenly distributed on the connecting plate (105), and the pressing rods (601) are movably connected to the rotating flange (30).

8. The runout detection device according to claim 7, wherein A grooved plate (603) is arranged on the connecting plate (105), and the pressing rod (601) is in sliding fit with the grooved plate (603).

9. The runout detection device according to claim 1, wherein A second lifting driving member (201) is arranged on the frame (10), the placement table (20) is connected to the second lifting driving member (201), and the second lifting driving member (201) is used to push the placement table (20) to move in the Z direction.

10. The runout detection device according to any one of claims 1 to 9, characterized in that, The number of the detection heads (402) is two, and the two detection heads (402) are symmetrically arranged on the radial two sides of the workpiece (80).

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