Fixing device of gear measuring instrument

Abstract

The utility model provides a fixing device of a gear measuring instrument. The fixing device comprises a supporting table; the two moving grooves are formed in the supporting table in a mirroring and penetrating mode, and the two moving grooves extend in the first direction; the two moving blocks are arranged in the two moving grooves correspondingly and can slide in the extending direction of the moving grooves, and clamping blocks are arranged on the opposite sides of the two moving blocks correspondingly; and the driving piece is connected with the two moving blocks respectively so as to enable the two moving blocks to move towards each other or away from each other. According to the fixing device of the gear measuring instrument, the two moving blocks are driven by the driving piece to move oppositely along the extending directions of the respective moving grooves so as to form a large space on the supporting table, then the gear to be detected is placed at the central position of the supporting table, and at the moment, the two moving blocks move oppositely through the driving piece, so that the gear to be detected is fixed on the supporting table. Therefore, the fixing device can adapt to the sizes of gears with different radiuses, and the application range of the fixing device used when the gears are detected is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of gear measurement, in particular to a fixing device of a gear measuring instrument. Background Art

[0002] Gears refer to mechanical components with gears on the wheel rim that continuously mesh to transmit power and motion. They are mechanical parts with teeth that can mesh with each other. They are extremely widely used in mechanical transmission and the entire mechanical field. During the working process of the gear, the smoothness of the gear operation is very important. Therefore, after the gear is produced or before the gear is used, the hardness, transmission accuracy and other aspects of the gear need to be tested by a gear measuring device.

[0003] However, the fixing device of the existing gear tester is usually to set a fixed shaft that matches the center hole of the gear to fix the size. But with this fixing method, when encountering gears of different sizes, not only do you need to make fixed shafts of various sizes, which increases the cost, but each time you test gears with matching holes of different sizes, you need to remove the fixed shaft and then install the fixed shaft that matches the gear to be tested, which increases the measurement cost and time cost, and then reduces the measurement efficiency. Utility Model Content

[0004] In view of the deficiencies existing in the prior art, the utility model provides a fixing device for a gear measuring instrument to solve the problem in the related art that the fixing device of the existing gear tester is usually to set a fixed shaft that matches the center hole of the gear to fix the size, but using this fixing method, when encountering gears of different sizes, not only is it necessary to make fixed shafts of various sizes, which increases the cost, but each time gears with matching holes of different sizes are tested, the fixed shaft needs to be removed and then the fixed shaft that matches the gear to be tested needs to be installed, thereby increasing the measurement cost and time cost, and further reducing the technical problem of measurement efficiency.

[0005] The utility model provides a fixing device for a gear measuring instrument, comprising:

[0006] Support table;

[0007] Two movable grooves are mirror-imaged and penetrated on the support platform, and both of the movable grooves extend along the first direction;

[0008] Two moving blocks are respectively arranged in the two moving grooves and can slide along the extending direction of the moving grooves, and clamping blocks are arranged on opposite sides of the two moving blocks;

[0009] The driving member is respectively connected with the two moving blocks to make the two moving blocks move toward or away from each other.

[0010] Furthermore, the driving member includes two racks connected to the two moving blocks respectively, two connecting blocks arranged under the support platform and slidably connected to the two racks respectively, a driving tooth meshing with the two racks, a mounting plate arranged under the connecting block and a motor arranged on the mounting plate, the output end of the motor is coaxially connected to the gear, and the two racks and the connecting block are respectively located on both sides of the driving tooth.

[0011] Furthermore, both of the two connecting blocks are provided with a slide groove, which extends from one end of the connecting block to the other end, and the rack is slidably connected in the slide groove and can slide along the extension direction of the slide groove.

[0012] Furthermore, a slide rail extending in a first direction is provided on the inner walls on both sides of each movable groove, a slider which can slide along the extending direction is slidably connected in the slide rail, and one end of the slider is connected to the movable block.

[0013] Furthermore, each of the moving blocks is provided with a clamping block through an adjusting member, and the adjusting member includes an installation groove opened in the radial direction of a side wall of the moving block, a screw rod threadedly connected to the clamping block is rotatably arranged in the installation groove, and one end of the screw rod passes through the top end of the moving block and is connected to a rotating cylinder.

[0014] Furthermore, the rotating drum has an operating portion, and the operating portion is provided with a plurality of anti-skid patterns and / or anti-skid grooves.

[0015] Furthermore, a side of the clamping block away from the moving block has a groove, and the groove has an arc-shaped structure and is provided with a rubber pad.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The fixing device of the gear measuring instrument of the utility model, when it is necessary to fix the gear, first drives the two moving blocks to move in opposite directions along the extension directions of their respective moving grooves through a driving member to form a larger space on the support table, and then the gear to be tested is placed on the center position of the support table. At this time, the two moving blocks are moved toward each other through the driving member until the clamping blocks clamp the gear, so that the fixing device can adapt to gear sizes with different radii, thereby expanding the application range of the fixing device used for testing gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a fixing device of a gear measuring instrument according to an embodiment of the utility model;

[0019] Figure 2 It is a side view of a fixing device of a gear measuring instrument according to an embodiment of the utility model;

[0020] Figure 3 A top view of a fixing device of a gear measuring instrument according to an embodiment of the utility model;

[0021] Description of Figure Numbers:

[0022] 100, support table; 200, moving slot; 300, moving block; 400, clamping block;

[0023] 500, driving member; 510, rack; 520, connecting block; 530, gear; 540, mounting plate; 550, motor; 560, slide rail; 570, slider;

[0024] 600, adjusting member; 610, mounting groove; 620, screw rod; 630, rotating drum;

[0025] 700. Rubber pad.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the utility model, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the limiting conditions that the utility model can be implemented, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship, without substantial change of the technical content, should also be regarded as the scope of the implementation of the utility model.

[0029] like Figure 1-3As shown, an embodiment of the utility model provides a fixing device for a gear measuring instrument, including a support table 100, two movable grooves 200, two movable blocks 300 and a driving member 500; the two movable grooves 200 are mirror images and are arranged through the support table 100, and the two movable grooves 200 extend along a first direction; the two movable blocks 300 are respectively arranged in the two movable grooves 200 and can slide along the extension direction of the movable grooves 200, and clamping blocks 400 are provided on opposite sides of the two movable blocks 300; the driving member 500 is respectively connected to the two movable blocks 300 to make the two movable blocks 300 move toward or away from each other, and synchronously drive the clamping blocks 400 to move.

[0030] In the embodiment of the utility model, when it is necessary to fix the driving tooth 530, the two moving blocks 300 are first driven by the driving member 500 to move in opposite directions along the extension directions of their respective moving grooves 200 to form a larger space on the support platform 100, and then the gear to be detected is placed at the center position of the support platform 100. At this time, the driving member 500 is used to make the two moving blocks 300 move toward each other until the clamping block 400 clamps the gear, so that the fixing device can adapt to the sizes of driving teeth 530 with different radii, thereby expanding the application range of the fixing device used for detecting gears.

[0031] like Figure 1-3 As shown, in the embodiment of the utility model, the driving member 500 includes two racks 510 respectively connected to the two moving blocks 300, two connecting blocks 520 respectively connected to the two racks 510 under the support platform 100, a driving tooth 530 meshing with the two racks 510, a mounting plate 540 disposed under the connecting block 520 and a motor 550 disposed on the mounting plate 540, the output end of the motor 550 is coaxially connected to the driving tooth 530, the two racks 510 and the connecting block 520 are respectively located on both sides of the driving tooth 530, specifically, the connecting block 520 is vertically connected to the rack 510, and the two racks 510 are arranged parallel to each other.

[0032] In the embodiment of the utility model, when in use, the motor 550 drives the driving tooth 530 to rotate, and the driving tooth 530 drives the two meshing racks 510 to move away from each other, thereby driving the two racks 510 and the respectively connected moving plates to move away from or towards each other in the corresponding moving grooves 200, so as to achieve the clamping or separation of the gears.

[0033] like Figure 1-3As shown, in an embodiment of the utility model, a slide groove is provided on each of the two connecting blocks 520, and the slide groove extends from one end of the connecting block 520 to the other end. The rack 510 is slidably connected in the slide groove and can slide along the extension direction of the slide groove. Specifically, the connecting block 520 is a rectangular frame, which is horizontally arranged, and the rectangular frame has a square hole passing through in the horizontal direction to define the slide groove. In one embodiment, the rectangular frame is a long strip.

[0034] like Figure 1-3 As shown, in the embodiment of the utility model, a slide rail 560 extending in a first direction is provided on the inner walls on both sides of each of the movable grooves 200, and a slider 570 is slidably connected inside the slide rail 560 and can slide along its extension direction, and one end of the slider 570 is connected to the movable block 300, wherein the cross-section of the slide rail 560 is square, and the cross-sectional size of the slider 570 is consistent with the cross-sectional size of the slide rail 560, and the cooperation of the slide rail 560 and the slider 570 makes the movement of the movable block 300 in the movable groove 200 smoother.

[0035] like Figure 1-3 As shown, in the embodiment of the utility model, each of the moving blocks 300 is provided with a clamping block 400 through an adjusting member 600, and the adjusting member 600 includes a mounting groove 610 opened in the radial direction of a side wall of the moving block 300, and a screw 620 threadedly connected to the clamping block 400 is rotatably provided in the mounting groove 610, and one end of the screw 620 passes through the top of the moving block 300 and is connected to a rotating drum 630, and the position of the rubber pad 700 is adjusted by the screw 620 and an end block connected by a thread, and then when fixing gears of different thicknesses, the position of the clamping block 400 is adjusted by the rotating drum 630 to achieve a tight fit with the central part of the gear surface, making the clamping more secure.

[0036] like Figure 1-3 As shown, in the embodiment of the utility model, the rotating drum 630 has an operating portion, and the operating portion is provided with a plurality of anti-skid patterns and / or anti-skid grooves. The cooperation of the anti-skid patterns and / or anti-skid grooves facilitates the use of the operating portion.

[0037] like Figure 1-3 As shown, in the embodiment of the utility model, the clamping block 400 has a groove on the side away from the moving block 300. The groove has an arc-shaped structure and is provided with a rubber pad 700. Since the rubber pad 700 has a good deformation effect, it can fit well to the surface of the gear without causing damage to it.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fixing device for a gear measuring instrument, characterized in that: include: Support platform (100); Two movable grooves (200) are mirror-imaged and penetrated on the support platform (100), and both of the two movable grooves (200) extend along a first direction; Two moving blocks (300) are respectively arranged in the two moving grooves (200) and can slide along the extension direction of the moving grooves (200), and clamping blocks (400) are arranged on opposite sides of the two moving blocks (300); A driving member (500) is respectively connected to the two moving blocks (300) so that the two moving blocks (300) move toward or away from each other; the driving member (500) comprises two racks (510) respectively connected to the two moving blocks (300), two connecting blocks (520) arranged under the support platform (100) and respectively connected to the two racks (510) in a sliding manner, a driving tooth (530) meshing with the two racks (510), a mounting plate (540) arranged under the connecting block (520), and a motor (550) arranged on the mounting plate (540), wherein the output end of the motor (550) is coaxially connected to the driving tooth (530), and the two racks (510) and the connecting block (520) are respectively located on both sides of the driving tooth (530); Each of the moving blocks (300) is provided with a clamping block (400) via an adjusting member (600), wherein the adjusting member (600) comprises a mounting groove (610) provided along a radial direction of a side wall of the moving block (300), wherein a screw rod (620) which is screwed to the clamping block (400) is rotatably arranged in the mounting groove (610), and one end of the screw rod (620) passes through the top end of the moving block (300) and is connected to a rotating drum (630).

2. A fixing device for a gear measuring instrument as claimed in claim 1, characterized in that: The two connecting blocks (520) are each provided with a slide groove, the slide groove extending from one end of the connecting block (520) to the other end, and the rack (510) is slidably connected in the slide groove and can slide along the extension direction of the slide groove.

3. A fixing device for a gear measuring instrument as claimed in claim 2, characterized in that: A slide rail (560) extending in a first direction is provided on the inner walls on both sides of each movable groove (200), a slider (570) slidably connected in the slide rail (560) and capable of sliding along the extension direction thereof, and one end of the slider (570) is connected to the movable block (300).

4. A fixing device for a gear measuring instrument as claimed in claim 1, characterized in that: The rotating drum (630) is provided with an operating portion, and the operating portion is provided with a plurality of anti-skid patterns and / or anti-skid grooves.

5. A fixing device for a gear measuring instrument as claimed in claim 1 or 4, characterized in that: The clamping block (400) has a groove on one side away from the moving block (300), and the groove is in an arc-shaped structure and is provided with a rubber pad (700).

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