Gear mold fixing device

Abstract

The utility model discloses a gear mold fixing device which comprises an installation bottom plate, a clamping mechanism and an axial limiting mechanism. The clamping mechanism comprises a fixing plate located on one side of the mounting bottom plate and parallel to the mounting bottom plate, a rotation driving piece arranged on the other side of the mounting bottom plate and used for driving the fixing plate to rotate, and clamping assemblies arranged on the mounting bottom plate in a sliding mode and symmetrically distributed on the two sides of the fixing plate. The L-shaped connecting rod is hinged between the clamping assembly and the fixing plate, the axial limiting mechanism and the clamping assembly are located on the same side and correspond to the axis of the fixing plate, and a positioning block is arranged in the center of the top of the fixing plate. According to the utility model, through the arrangement of the clamping mechanism and the two clamping assemblies, the gear can be clamped, the gears with different sizes can be clamped, and the gear to be detected can be axially limited through the axial limiting mechanism, so that the gear to be detected is fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear testing fixture technical field, concretely relates to a gear mould fixing device. BACKGROUND

[0002] Gear is a kind of mechanical element by gear continuously meshing transmission movement and power, since transmission efficiency is high, transmission ratio is accurate, power range is big and so on, gear mechanism is widely used in industrial products, and its design and manufacturing level directly influence the quality of industrial products.

[0003] However, when the gear testing fixture detects the automobile gear, the gear needs to be fixed first, and the gear rotates, but in the prior art, the fixing of the gear is very troublesome, usually two clamping plates are used to clamp the gear, the contact area of the two clamping plates with the gear is small, due to the gravity of the gear itself, the gear is easy to slide in the two clamping plates, which causes the gear to fall off during the fixing process, and the gear is easy to wear. And the gear has different sizes and pitch distances, the existing automobile gear detection fixing tool accommodates the gear to be clamped and fixed through the set clamping hole, and only the gear matching the size of the clamping hole can be clamped and fixed, once the size of the gear to be detected changes, additional clamping tool of corresponding size needs to be added, which increases the cost of equipment and is troublesome to replace. SUMMARY

[0004] The utility model aims at providing a kind of gear mould fixing device, to solve the problem that the fixing tool in the existing gear testing fixture is easy to cause gear wear, and cannot fix gears of different sizes and pitch distances.

[0005] The technical scheme that the utility model solves the above technical problem is as follows:

[0006] A kind of gear mould fixing device, comprising: installation bottom plate, clamping mechanism being arranged on installation bottom plate, and axial limit mechanism being slidably arranged on installation bottom plate and being used to limit the axial position of gear;

[0007] Clamping mechanism includes fixed plate located at one side of installation bottom plate and parallel with installation bottom plate, rotating driving part being arranged at the other side of installation bottom plate and being used to drive fixed plate to rotate, clamping assembly being slidably arranged on installation bottom plate respectively and being symmetrically distributed at both sides of fixed plate, and L-shaped connecting rod being hinged between clamping assembly and fixed plate, axial limit mechanism is located at the same side with clamping assembly and corresponds with the axis of fixed plate, and the top center of fixed plate is provided with positioning block;

[0008] Rotating driving part drives fixed plate to rotate, fixed plate pushes two corresponding clamping assemblies to slide towards each other / away from each other by two L-shaped connecting rods, and clamps and loosens gear by two clamping assemblies.

[0009] Further, the clamping assembly comprises a T-shaped slider slidingly arranged on the mounting base plate, a support plate arranged on the top of the T-shaped slider, an arc plate slidingly arranged on the top of the support plate, and a clamping screw penetrating through the arc plate and used for abutting the arc plate against the support plate, the inner side of the arc plate is provided with a tooth tip engaged with the gear, the L-shaped connecting rod is hinged between the fixed plate and the support plate, the rotation axis of the arc plate coincides with the central axis of the fixed plate, the support plate is provided with a sliding groove matched with the arc plate, and the rotation axis of the sliding groove on the support plate coincides with the rotation axis of the arc plate.

[0010] Further, the top surface of the support plate is flush with the top surface of the fixed plate.

[0011] Further, two symmetrical sliding grooves matched with the T-shaped slider are arranged on the mounting base plate.

[0012] Further, the bottom of the T-shaped slider is provided with a limiting block, and the bottom of the T-shaped slider penetrates through the sliding groove and is connected with the limiting block.

[0013] Further, the axial limiting mechanism comprises a slider slidingly arranged on the mounting base plate, a top plate arranged on the top of the slider, a fixed cylinder vertically arranged on the top plate, a vertical rod located in the fixed cylinder and sliding and rotating along the fixed cylinder, an L-shaped rod transversely arranged on the top of the vertical rod and parallel to the mounting base plate, and a clamping member arranged on the outer wall of the fixed cylinder and used for abutting the vertical rod, and the central axis of the fixed cylinder is located in the same plane as the central axis of the fixed plate.

[0014] Further, the mounting base plate is provided with a sliding rail slidingly matched with the slider, and the arrangement direction of the sliding rail is perpendicular to the central axis of the fixed plate.

[0015] Further, the distance between the top surface of the top plate and the top surface of the mounting base plate is smaller than the distance between the bottom surface of the fixed plate and the top surface of the mounting base plate.

[0016] The utility model has the following beneficial effects:

[0017] 1. The gear mold fixing device, through the clamping mechanism, when in use, the rotation driving part is started to rotate forward, the rotation driving part drives the fixed plate to rotate, the fixed plate can drive the corresponding clamping assembly to slide away from each other through the two L-shaped connecting rods, the two clamping assemblies are expanded by rotating, at this time, the gear to be detected can be placed on the fixed plate, and the positioning block penetrates out of the shaft hole of the gear to be detected; the rotation driving part is started to rotate reversely, the rotation driving part drives the fixed plate to rotate, the fixed plate can drive the corresponding clamping assembly to slide towards each other through the two L-shaped connecting rods, and then the gear is clamped and released, the two clamping assemblies are used for exerting clamping force on the radial direction of the gear, and can clamp gears of different sizes; the axial limiting mechanism can limit the axial direction of the gear to be detected, and then the gear to be detected is fixed.

[0018] 2、The clamping assembly of the utility model, when the fixed plate rotates, the support plate is driven to move through the L-shaped connecting rod, and then drives the T-shaped sliding block to slide along the sliding groove of the mounting bottom plate, finally drives the arc plate to move, the tooth tip inside the arc plate is engaged with the tooth of the gear to be detected, and then the gear to be detected can be radially clamped, the stability of clamping is improved, and the wear of the gear can be reduced.

[0019] 3、The clamping assembly of the utility model, the sliding fit of the arc plate and the support plate, it is convenient for replacing the corresponding arc plate according to the gear of different pitch, and then it is tightly pressed on the support plate through the pressing bolt, and then the gear of different pitch can be clamped, and the versatility is strong.

[0020] 4、The axial limiting mechanism of the utility model, through the cooperation of the sliding block, the top plate, the fixed cylinder, the vertical rod and the L-shaped rod, the position of the L-shaped rod can be adjusted, the shaft side of the gear is tightly pressed through the bottom end of the L-shaped rod, and then the vertical rod is tightly pressed on the fixed cylinder by using the pressing element, and the axial direction of the gear can be limited. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic view of gear mold fixing device;

[0022] Figure 2 It is the bottom side structure schematic view of gear mold fixing device;

[0023] Figure 3 It is Figure 1 The enlarged structure schematic view of A;

[0024] Figure 4 It is the structure schematic view of axial limiting mechanism.

[0025] In the drawing: 1, mounting bottom plate;11, sliding groove;12, sliding rail;2, clamping mechanism;21, fixed plate;22, rotary drive element;23, clamping assembly;231, T-shaped sliding block;232, support plate;233, arc plate;234, pressing screw;235, tooth tip;236, limiting block;24, L-shaped connecting rod;25, positioning block;3, axial limiting mechanism;31, sliding block;32, top plate;33, fixed cylinder;34, vertical rod;35, L-shaped rod;36, pressing element. DETAILED DESCRIPTION

[0026] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model, and not used to limit the scope of the utility model.

[0027] As Figure 1The utility model discloses a gear mould fixing device, including: installation bottom plate 1, installation bottom plate 1 is cylindrical structure, set up the clamping mechanism 2 of installation bottom plate 1 on and the axial position limiting mechanism 3 for limiting the axial position of gear of sliding setting installation bottom plate 1, the clamping mechanism 2 is used for the radial clamping of the gear to be detected, and the axial position limiting mechanism 3 is used for the axial location of the gear to be detected, and the both cooperation can stably fix the gear.

[0028] Specifically, the clamping mechanism 2 includes a fixed plate 21 located on one side of the installation bottom plate 1 and parallel to the installation bottom plate 1, the fixed plate 21 is circular structure; a rotating drive 22 is arranged on the other side of the installation bottom plate 1 and used to drive the fixed plate 21 to rotate, the rotating drive 22 adopts a servo motor, an axle hole is formed in the installation bottom plate 1, the servo motor is fixed on the other side of the installation bottom plate 1, the output shaft of the servo motor passes through the axle hole in the installation bottom plate 1 and is connected with the fixed plate 21 in a matched mode, and the central axis of the fixed plate 21 coincides with the axis of the rotating shaft of the servo motor; a clamping assembly 23 is slidably arranged on the installation bottom plate 1 and symmetrically distributed on both sides of the fixed plate 21, in the embodiment, the central axis of the fixed plate 21 coincides with the central axis of the installation bottom plate 1, so that the two clamping assemblies 23 slide along the radial direction of the installation bottom plate 1, in other embodiments of the utility model, the installation bottom plate 1 can also be rectangular structure, the central axis of the fixed plate 21 can not coincide with the central axis of the installation bottom plate 1, and only two clamping assemblies 23 need to be symmetrically distributed on both sides of the fixed plate 21; and an L-shaped connecting rod 24 is hingedly connected between the clamping assembly 23 and the fixed plate 21, the axial position limiting mechanism 3 is located on the same side of the clamping assembly 23 and corresponds to the axis of the fixed plate 21, and a positioning block 25 is arranged at the top center of the fixed plate 21; the positioning block 25 is used for preliminary positioning of the gear to be detected, in use, the gear to be detected is placed on the fixed plate 21, and the positioning block 25 is made to pass out of the axle hole of the gear for preliminary positioning; the rotating drive 22 drives the fixed plate 21 to rotate, the fixed plate 21 pushes the two corresponding clamping assemblies 23 to slide towards each other / away from each other through the two L-shaped connecting rods 24, and the gear is clamped and released through the two clamping assemblies 23; and then different sizes of gears can be clamped.

[0029] As Figure 2 and Figure 3As shown, the clamping assembly 23 comprises a T-shaped sliding block 231 slidingly arranged on the mounting base plate 1, and two sliding grooves 11 are symmetrically formed on the mounting base plate 1 and slidingly matched with the T-shaped sliding block 231; a support plate 232 is arranged on the top of the T-shaped sliding block 231, and the top surface of the support plate 232 is flush with the top surface of the fixed plate 21; an arc plate 233 is slidingly arranged on the top of the support plate 232, and a clamping screw 234 is arranged on the arc plate 233 and used for clamping the arc plate 233 against the support plate 232, the arc plate 233 is axially provided with a threaded hole matched with the clamping screw 234, the clamping screw 234 passes through the threaded hole of the arc plate 233 and clamps against the support plate 232; the inner side of the arc plate 233 is provided with a tooth tip 235 engaged with a gear, the L-shaped connecting rod 24 is hingedly connected between the fixed plate 21 and the support plate 232, the rotation axis of the arc plate 233 coincides with the central axis of the fixed plate 21, and the support plate 232 is provided with a sliding groove matched with the arc plate 233, and the rotation axis of the sliding groove on the support plate 232 coincides with the rotation axis of the arc plate 233. In the embodiment, the bottom of the T-shaped sliding block 231 is provided with a limiting block 236, the bottom of the T-shaped sliding block 231 passes through the sliding groove 11 and is connected with the limiting block 236, and the limiting block 236 can prevent the T-shaped sliding block 231 from sliding off.

[0030] When the fixed plate 21 rotates under the driving of the rotary driving member 22, the support plate 232 is driven to move through the L-shaped connecting rod 24, and then the T-shaped sliding block 231 is driven to slide along the sliding groove 11 of the mounting base plate 1, finally the arc plate 233 is driven to move, the tooth tip 235 on the inner side of the arc plate 233 is engaged with the teeth of the gear to be detected, and then the gear to be detected can be radially clamped, the stability of clamping is improved, and the wear of the gear is reduced.

[0031] As Figure 4As shown, the axial limiting mechanism 3 comprises a sliding block 31 slidingly arranged on the mounting base plate 1, the mounting base plate 1 is provided with a sliding rail 12 slidingly matched with the sliding block 31, the arrangement direction of the sliding rail 12 is perpendicular to the central axis of the fixing plate 21; a top plate 32 arranged on the top of the sliding block 31, and the distance between the top surface of the top plate 32 and the top surface of the mounting base plate 1 is smaller than the distance between the bottom surface of the fixing plate 21 and the top surface of the mounting base plate 1, so that the top plate 32 does not interfere with the gear to be detected; a fixing cylinder 33 vertically arranged on the top plate 32, a vertical rod 34 located in the fixing cylinder 33 and sliding and rotating along the fixing cylinder 33, the outer diameter of the vertical rod 34 is slightly smaller than the inner diameter of the fixing cylinder 33; an L-shaped rod 35 transversely arranged on the top of the vertical rod 34 and parallel to the mounting base plate 1, the long rod of the L-shaped rod 35 is parallel to the mounting base plate 1, and the short rod of the L-shaped rod 35 is downward and perpendicular to the mounting base plate 1; and a clamping member 36 arranged on the outer wall of the fixing cylinder 33 and used for abutting against the vertical rod 34, the clamping member 36 adopts a threaded rod, the outer wall of the fixing cylinder 33 is provided with a threaded hole, the threaded rod passes through the threaded hole and abuts against the outer wall of the vertical rod 34; the central axis of the fixing cylinder 33 is located in the same plane as the central axis of the fixing plate 21. By loosening the clamping member 36, the height and position of the vertical rod 34 and the L-shaped rod 35 can be adjusted, the shaft side of the gear is clamped by the bottom end of the L-shaped rod 35, and then the vertical rod 34 is clamped on the fixing cylinder 33 by the clamping member 36, so that the axial direction of the gear can be limited.

[0032] In use, the rotating driving member 22 is started to rotate forward, the rotating driving member 22 drives the fixing plate 21 to rotate, the fixing plate 21 rotating can drive the corresponding clamping assemblies 23 to slide away from each other through the two L-shaped connecting rods 24, the two clamping assemblies 23 are expanded by rotating, at this time, the gear to be detected can be placed on the fixing plate 21, the positioning block 25 passes out of the shaft hole of the gear to be detected, and the gear can be preliminarily positioned; then the rotating driving member 22 is started to rotate reversely, the rotating driving member 22 drives the fixing plate 21 to rotate, the fixing plate 21 rotating can drive the corresponding support plates 232 to move through the two L-shaped connecting rods 24, and then drives the T-shaped sliding block 231 to slide along the sliding channel 11, and finally drives the arc plate 233 to move, the gear to be detected is radially clamped through the tooth tips 235 on the inner side of the arc plate 233 and the teeth of the gear to be detected, so that the gear to be detected can be radially clamped, the stability of clamping is improved, and the wear of the gear is reduced; the axial limiting mechanism 3 can limit the axial direction of the gear.

[0033] When it is necessary to fix gears with different gear pitches, the corresponding arc plates 233 can be replaced according to gears with different gear pitches, and then the arc plates 233 are clamped on the support plates 232 through the clamping bolts 234, so that gears with different gear pitches can be clamped, and the versatility is high.

[0034] And, when the tooth tip inside the arc plate 233 does not completely correspond to the tooth of the gear to be detected, the position of the tooth tip 235 can be changed by driving the arc plate 233 to slide along the support plate 232 to make the tooth tip 235 completely mesh with the tooth, and the position of the gear to be detected can also be adjusted by manually driving the gear to rotate, so that the tooth tip 235 is meshed with the tooth, which is convenient to use.

[0035] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gear mold fixing device, characterized in that, include: Mounting base plate (1), clamping mechanism (2) provided on the mounting base plate (1), and axial limiting mechanism (3) slidably provided on the mounting base plate (1) and used to limit the axial position of the gear; The clamping mechanism (2) includes a fixed plate (21) located on one side of the mounting base plate (1) and parallel to the mounting base plate (1), a rotary drive (22) disposed on the other side of the mounting base plate (1) and used to drive the fixed plate (21) to rotate, clamping components (23) respectively slidably disposed on the mounting base plate (1) and symmetrically distributed on both sides of the fixed plate (21), and an L-shaped connecting rod (24) hinged between the clamping components (23) and the fixed plate (21). The axial limiting mechanism (3) is located on the same side as the clamping components (23) and corresponds to the axis of the fixed plate (21). A positioning block (25) is provided at the top center of the fixed plate (21). The rotary drive (22) drives the fixed plate (21) to rotate. The fixed plate (21) pushes the two corresponding clamping components (23) to slide towards / away from each other through the two L-shaped connecting rods (24), and clamps and releases the gear through the two clamping components (23).

2. The gear mold fixing device according to claim 1, characterized in that, The clamping assembly (23) includes a T-shaped slider (231) slidably disposed on the mounting base plate (1), a support plate (232) disposed on the top of the T-shaped slider (231), an arc plate (233) slidably disposed on the top of the support plate (232), and a clamping screw (234) passing through the arc plate (233) and used to press the arc plate (233) against the support plate (232). The inner side is provided with a tooth tip (235) that meshes with the gear. The L-shaped connecting rod (24) is hinged between the fixed plate (21) and the support plate (232). The rotation axis of the arc plate (233) coincides with the central axis of the fixed plate (21). The support plate (232) is provided with a sliding groove that matches the arc plate (233), and the rotation axis of the sliding groove on the support plate (232) coincides with the rotation axis of the arc plate (233).

3. The gear mold fixing device according to claim 2, characterized in that, The top surface of the support plate (232) is flush with the top surface of the fixing plate (21).

4. The gear mold fixing device according to claim 2, characterized in that, The mounting base plate (1) is symmetrically provided with two sliding grooves (11) that slide in cooperation with the T-shaped slider (231).

5. The gear mold fixing device according to claim 4, characterized in that, The bottom of the T-shaped slider (231) is provided with a limiting block (236), and the bottom of the T-shaped slider (231) passes through the sliding groove (11) and is connected to the limiting block (236).

6. The gear mold fixing device according to any one of claims 1 to 5, characterized in that, The axial limiting mechanism (3) includes a slider (31) slidably disposed on the mounting base plate (1), a top plate (32) disposed on the top of the slider (31), a fixed cylinder (33) vertically disposed on the top plate (32), a vertical rod (34) located inside the fixed cylinder (33) and sliding and rotating along the fixed cylinder (33), an L-shaped rod (35) horizontally disposed on the top of the vertical rod (34) and parallel to the mounting base plate (1), and a clamping member (36) disposed on the outer wall of the fixed cylinder (33) and used to abut against the vertical rod (34). The central axis of the fixed cylinder (33) and the central axis of the fixed plate (21) are located in the same plane.

7. The gear mold fixing device according to claim 6, characterized in that, The mounting base plate (1) is provided with a slide rail (12) that slides with the slider (31), and the slide rail (12) is arranged in a direction perpendicular to the central axis of the fixing plate (21).

8. The gear mold fixing device according to claim 6, characterized in that, The distance between the top surface of the top plate (32) and the top surface of the mounting base plate (1) is less than the distance between the bottom surface of the fixing plate (21) and the top surface of the mounting base plate (1).

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