Cam outer diameter overall dimension measuring device

Abstract

The utility model discloses a cam outer diameter overall dimension measuring device, which comprises a workbench, a fixing assembly used for fixing a workpiece is rotatably arranged on the workbench, two groups of movably arranged measuring assemblies are arranged at the upper end of the workbench at intervals, and the two groups of measuring assemblies are respectively positioned on two sides of the workpiece. The measuring end of the measuring assembly is attached to a workpiece, and the workbench is provided with a driving assembly used for driving the measuring assembly to move in the vertical direction. According to the utility model, the cam can be automatically detected, and when the long shaft and the short shaft of the cam are measured by the device, the long shaft and the short shaft of the cam at different heights can be directly measured without dismounting the cam, so that the working efficiency of detecting the cam can be effectively improved; and the working intensity of workers is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cam machining technical field especially relates to a cam outer diameter profile size measuring device. BACKGROUND

[0002] Cam refers to the rotation or sliding part (such as wheel or wheel protruding part) of machine, it transmits movement to the roller that moves close to its edge or the needle bar that freely moves on the groove surface, or it bears force from such roller and needle bar, the long axis and short axis of cam are important factors after cam machining, so the long axis and short axis of cam need to be measured after cam machining;

[0003] The existing measuring means uses the outer diameter micrometer to measure the long axis and short axis of cam, the precision is relatively low, only 0.005 mm, the time consumption is long, about 2 minutes, the skill requirement of operator is relatively high, and since there are more than one end surface of cam, the staff needs to measure the multiple end surfaces of different heights when measuring the cam, so as to low the work efficiency and increase the work intensity. UTILITY MODEL CONTENT

[0004] (I) Utility model purpose

[0005] To solve the technical problems in the background art, the utility model provides a cam outer diameter profile size measuring device, which can automatically detect the cam, and can directly measure the long axis and short axis of different heights of the cam without disassembling the cam when measuring the long axis and short axis of the cam, so as to effectively improve the work efficiency of detecting the cam and effectively reduce the work intensity of the staff.

[0006] (II) Technical scheme

[0007] The utility model provides a cam outer diameter profile size measuring device, including workbench, be provided with the fixed assembly for fixing workpiece on the workbench, the fixed assembly is arranged on the workbench, the workbench upper end is equipped with two groups of movable measurement assembly, two groups measurement assembly are located workpiece's both sides respectively, the measurement end of measurement assembly is attached with workpiece, be equipped with the drive assembly for driving measurement assembly moves along the up and down direction on the workbench.

[0008] Preferably, the fixed assembly comprises a three-jaw chuck, the three-jaw chuck is arranged at the upper end of the workbench, the workbench is provided with a mounting table, the mounting table is provided with a first groove, the first groove is provided with a motor, the three-jaw chuck is coaxially connected with the output shaft of the motor.

[0009] Preferably, the measuring assembly comprises a connecting plate and mounting plates, the connecting plate is located at the upper end of the workbench and is in transmission connection with the driving assembly, two groups of mounting plates are spaced apart from one end of the connecting plate towards the three-jaw chuck, the two groups of mounting plates are located at two ends of the three-jaw chuck respectively, and an axial displacement sensor is detachably arranged on each of the two groups of mounting plates, the center line of the axial displacement sensor is located on the same straight line as the center of the three-jaw chuck, and the axial displacement sensor is arranged in close contact with the outer end of the workpiece.

[0010] Preferably, the first threaded rod is further arranged, the upper end of the mounting plate is provided with a fixed plate, the mounting plate is provided with a sliding plate, the fixed plate is in sliding connection with the sliding plate, the fixed plate is provided with a first threaded hole, and the first threaded rod is threadedly arranged in the first threaded hole, one end of the first threaded rod is in rotational connection with the mounting plate, and the other end of the first threaded rod is coaxially provided with a first handle.

[0011] Preferably, the upper end of the mounting plate is provided with a first groove, the bottom end of the fixed plate is provided with a second groove, and the first groove and the second groove have a gap for accommodating the axial displacement sensor.

[0012] Preferably, the driving assembly comprises a support block, the support block is connected with the upper end of the workbench, the support block is provided with a sliding block at one end towards the connecting plate, the connecting plate is in sliding connection with the support block, the connecting plate is provided with a first groove at one end towards the support block, the first groove is provided with a first notch in close contact with the outer end of the sliding block, the inner wall of the first notch is in close sliding connection with the outer end of the sliding block, the sliding block is provided with a rack plate at one end close to the connecting block, a gear wheel is rotatably arranged in the first groove, the gear wheel is in meshing connection with the rack plate, the connecting block is provided with a first through hole in communication with the first groove, a rotating knob is rotatably arranged in the first through hole and is coaxially connected with the gear wheel, and the connecting block is provided with a limiting unit for limiting the sliding block and the connecting block.

[0013] Preferably, the limiting unit comprises a bolt, the connecting block is provided with a second threaded hole in communication with the first groove of the bolt, the bolt is threadedly arranged in the second threaded hole, and the bolt can be moved to abut against the sliding block.

[0014] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0015] The device can automatically detect the cam, and when the long shaft and the short shaft of the cam are measured, the different heights of the long shaft and the short shaft of the cam can be directly measured without disassembling the cam, so that the working efficiency of detecting the cam can be effectively improved, and the working intensity of the workers can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure schematic view of a cam outer diameter contour size measuring device is provided in the utility model.

[0017] Figure 2 A side view structure schematic view of a cam outer diameter contour size measuring device is provided in the utility model.

[0018] Figure 3 A structure schematic view of a mounting table in a cam outer diameter contour size measuring device is provided in the utility model.

[0019] Figure 4 A top view structure schematic view of a cam outer diameter contour size measuring device is provided in the utility model.

[0020] Figure 5 An internal structure schematic view of a first groove in a cam outer diameter contour size measuring device is provided in the utility model.

[0021] Reference signs: 1, workbench;2, three-jaw chuck;3, mounting table;4, motor;6, connecting plate;7, mounting plate;8, axial displacement sensor;9, first threaded rod;10, fixed plate;11, sliding plate;12, supporting block;13, sliding block;14, rack plate;15, gear;16, rotating knob;17, bolt. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below by combining with specific implementation manners and referring to drawings. It should be understood that these descriptions are only exemplary, and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, welding, riveting, bonding and the like, or detachable connection, threaded connection, key connection, pin connection and the like, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] As Figures 1-5 shown, the utility model provides a cam outer diameter contour size measuring device, including workbench 1, the workbench 1 is rotationally provided with the fixed assembly for fixing workpiece, the workbench 1 upper end is equipped with two groups of movable measuring assembly, two groups of the measuring assembly are located at the both sides of workpiece respectively, the measuring end of measuring assembly is attached with workpiece, the workbench 1 is equipped with the drive assembly for driving the measuring assembly moves along the up-down direction.

[0026] In the utility model, when it is needed to use, the cam to be detected is fixed in the fixing assembly, after the fixing of the cam is completed, the measuring ends of the two groups of measuring assemblies are attached with the workpiece, so that the fixing assembly is rotated to drive the cam fixedly arranged therewith to rotate, so that the outer peripheral surface of the cam can be measured by the measuring assembly, and the measuring assembly can be effectively driven to move along the up-down direction by the drive assembly, so that the major axis and minor axis of the outer peripheral surface of the cam at different heights can be effectively measured. The device can automatically detect the cam, and the device can directly measure the major axis and minor axis of the cam at different heights without disassembling the cam when measuring the major axis and minor axis of the cam, so that the work efficiency of detecting the cam can be effectively improved, and the work intensity of the workers can be effectively reduced.

[0027] In an optional embodiment, the fixing assembly comprises a three-jaw chuck 2, which is arranged at the upper end of the workbench 1, the workbench 1 is provided with a mounting table 3, the mounting table 3 is provided with a first groove, the first groove is provided with a motor 4, the three-jaw chuck 2 is rotatably connected to the upper end of the mounting table 3, and the three-jaw chuck 2 is coaxially connected to the output shaft of the motor 4. The motor 4 can effectively drive the three-jaw chuck 2 to rotate, the three-jaw chuck 2 rotates to drive the cam to rotate, and the three-jaw chuck 2 can also conveniently clamp the cam.

[0028] In an optional embodiment, the measuring assembly comprises a connecting plate 6 and a mounting plate 7, the connecting plate 6 is located at the upper end of the workbench 1 and is drivingly connected to the driving assembly, two groups of mounting plates 7 are arranged at one end of the connecting plate 6 towards the three-jaw chuck 2, and the two groups of mounting plates 7 are respectively located at two ends of the three-jaw chuck 2. The axial displacement sensor 8 is detachably arranged on the two groups of mounting plates 7, the center line of the axial displacement sensor 8 is located on the same straight line as the center of the three-jaw chuck 2, and the axial displacement sensor 8 is arranged in close contact with the outer end of the workpiece. The axial displacement sensor 8 is rotated to the mounting plate 7 and is in contact with the outer end surface of the cam, so that when the cam rotates, the axial displacement sensor 8 can accurately obtain the major axis and minor axis of the cam according to the displacement distance. The driving assembly drives the connecting plate 6 to move in the up-down direction, thereby driving the mounting plate 7 and the axial displacement sensor 8 to move in the up-down direction, and thereby measuring the major axis and minor axis of the cam at different heights.

[0029] In an optional embodiment, a first threaded rod 9 is further included, a fixed plate 10 is arranged at the upper end of the mounting plate 7 in a spaced manner, a sliding plate 11 is arranged on the mounting plate 7, the fixed plate 10 is slidingly connected to the sliding plate 11, the fixed plate 10 is provided with a first threaded hole, and the first threaded rod 9 is threadedly arranged in the first threaded hole. One end of the first threaded rod 9 is rotatably connected to the mounting plate 7, and the other end of the first threaded rod 9 is coaxially provided with a first handle. The first handle can effectively rotate the first threaded rod 9. The rotation of the first threaded rod 9 drives the fixed plate 10 connected therewith to move in the up-down direction. The movement of the fixed plate 10 towards the mounting plate 7 can effectively limit the axial displacement sensor 8 located therein, and when the fixed plate 10 moves away from the mounting plate 7, the axial displacement sensor 8 can be directly taken out from the gap between the fixed plate 10 and the mounting plate 7.

[0030] In an optional embodiment, the upper end of the mounting plate 7 is provided with a first groove, the bottom end of the fixed plate 10 is provided with a second groove, and the first groove and the second groove have a gap for accommodating the axial displacement sensor 8. The inner walls of the first groove and the second groove are in close contact with the axial displacement sensor 8, which can effectively limit the axial displacement sensor 8.

[0031] In an optional embodiment, the driving assembly comprises a support block 12 connected with the upper end of the workbench 1, the support block 12 is provided with a sliding block 13 at one end thereof, the connecting plate 6 is slidingly connected with the support block 12, the connecting plate 6 is provided with a first groove at one end thereof, the first groove is provided with a first notch which is in close contact with the outer end of the sliding block 13, the inner wall of the first notch is in close contact with the outer end of the sliding block 13, the sliding block 13 is provided with a rack plate 14 at one end thereof, the gear 15 is rotatably arranged in the first groove, the gear 15 is in meshing connection with the rack plate 14, the connecting block is provided with a first through hole which is in communication with the first groove, the rotating knob 16 is rotatably arranged in the first through hole and coaxially connected with the gear 15, the connecting block is provided with a limiting unit for limiting the sliding block 13 and the connecting block, the rotating knob 16 is rotated to drive the gear 15 to rotate, the gear 15 is in meshing connection with the rack plate 14, so that the gear 15 is upwardly moved when rotating, thereby driving the connecting plate 6 to move, and the sliding path of the connecting plate 6 can be effectively limited by the close contact between the sliding block 13 and the inner wall of the first notch, and in the device, the rotating friction force exists between the rotating knob 16 and the connecting plate 6, so that the downward movement of the connecting plate 6 caused by the reverse rotation of the gear 15 after the connecting plate 6 is moved to the appropriate position can be effectively prevented by the friction force between the rotating knob 16 and the connecting plate 6.

[0032] In an optional embodiment, the limiting unit comprises a bolt 17, the connecting block is provided with a second threaded through hole which is in communication with the first groove of the bolt 17, the bolt 17 is threadedly arranged in the second threaded through hole, and the bolt 17 can be moved to abut against the sliding block 13, so that the connecting plate 6 can be effectively fixed and limited by rotating the bolt 17 and moving the bolt 17 to abut against the sliding block 13 after the connecting plate 6 is moved to the appropriate position. It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A cam outer diameter profile dimensional measurement device characterized by, The utility model provides a workbench, the workbench (1) is provided with the fixed assembly for fixing workpiece on the workbench (1), the workbench (1) is provided with two groups of movable measuring assembly on the upper end interval, and two groups of measuring assembly are located at the both sides of workpiece respectively, and the measuring end of measuring assembly is attached with workpiece, and the workbench (1) is provided with the drive assembly for driving the measuring assembly and moves in the up and down direction, the fixed assembly includes three jaw chuck (2), and the three jaw chuck (2) is arranged at the upper end of the workbench (1) interval, and the workbench (1) is provided with mounting table (3), and the mounting table (3) is provided with first recess, and the first recess is provided with motor (4), and the three jaw chuck (2) is rotatably connected with the upper end of mounting table (3), and the three jaw chuck (2) is coaxially connected with the output shaft of motor (4), and the measuring assembly includes connecting plate (6) and mounting plate (7), and the connecting plate (6) is located at the upper end of the workbench (1) and is transmissionally connected with the drive assembly, and the one end of connecting plate (6) towards three jaw chuck (2) is provided with two groups of mounting plate (7) interval, and two groups of mounting plate (7) are located at the both ends of three jaw chuck (2) respectively, and the axial displacement sensor (8) is detachably provided on two groups of mounting plate (7), and the center line of axial displacement sensor (8) is located on the same straight line with the center of three jaw chuck (2), and axial displacement sensor (8) is attached with workpiece outer end.

2. A cam outer diameter profile sizing device according to claim 1, wherein, It also includes first threaded rod (9), and the upper end of mounting plate (7) is provided with fixed plate (10) interval, and the mounting plate (7) is provided with sliding plate (11), and the fixed plate (10) is slidably connected with the sliding plate (11), and the fixed plate (10) is provided with first threaded hole, and the first threaded rod (9) is threadedly arranged in the first threaded hole, and one end of the first threaded rod (9) is rotatably connected with the mounting plate (7), and the other end of the first threaded rod (9) is coaxially provided with first handle.

3. A cam outer diameter profile sizing device according to claim 2, wherein, The upper end of mounting plate (7) is provided with first recess, and the bottom end of fixed plate (10) is provided with second recess, and the first recess and the second recess have clearance for accommodating axial displacement sensor (8).

4. The cam outer diameter profile sizing device of claim 1, wherein, The driving assembly comprises a supporting block (12) connected with the upper end of the workbench (1), the supporting block (12) is provided with a sliding block (13) at one end thereof facing the connecting plate (6), the connecting plate (6) is slidingly connected with the supporting block (12), the connecting plate (6) is provided with a first recess at one end thereof facing the supporting block (12), the first recess is provided with a first notch which is in close contact with the outer end of the sliding block (13), the inner wall of the first notch is slidingly arranged in close contact with the outer end of the sliding block (13), the sliding block (13) is provided with a rack plate (14) at one end thereof close to the connecting block, a gear (15) is rotatably arranged in the first recess, the gear (15) is in meshing connection with the rack plate (14), the connecting block is provided with a first through hole which is in communication with the first recess, a rotating knob (16) is rotatably arranged in the first through hole and is coaxially connected with the gear (15), and the connecting block is provided with a limiting unit for limiting the sliding block (13) and the connecting block.

5. A cam outer diameter profile sizing device according to claim 4, wherein, The limiting unit comprises a bolt (17), the connecting block is provided with a second threaded through hole which is in communication with the first recess of the bolt (17), the bolt (17) is threadedly arranged in the second threaded through hole, and the bolt (17) is movable to abut against the sliding block (13).

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