Gear positioning clamp and circulating chamfering device

Abstract

The utility model discloses a gear positioning clamp and a circulating chamfering device, and aims to solve the problems that a positioning clamp in the prior art is poor in universality and single in positioning direction. According to the technical scheme, the gear positioning clamp is characterized by comprising a base, a first annular supporting seat is arranged on the base, a plurality of through holes penetrating through the inside and the outside are formed in the first annular supporting seat, the through holes are distributed in an annular array with the circle center of the first annular supporting seat as the circle center, and positioning rods are slidably connected into the through holes; a flexible self-adaption part is arranged at the end, located on the outer side of the first annular supporting seat, of each positioning rod, and a second annular supporting seat is concentrically arranged above the first annular supporting seat. According to the gear positioning clamp and the circulating chamfering device, the positioning rod can be pushed to move by different distances by adjusting the descending degree of the driving block, and the flexible self-adaption part has flexible deformation capacity, so that gears with different inner diameters can be tightly propped against, and the universality of the clamp is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear production technical field more specifically, it relates to a kind of gear positioning fixture and circulating chamfer device. BACKGROUND

[0002] Gear is indispensable element in mechanical transmission, is widely used in various mechanical equipment, through the meshing of gear teeth, realize the transmission of energy, the transformation of speed and the change of movement direction.In the processing and manufacturing process of gear, chamfering is a crucial link, not only can remove burr, improve the aesthetic degree of gear, but also can effectively reduce stress concentration in the meshing process of gear, prolong the service life of gear.

[0003] When chamfering gear, first need to position and clamping gear, the positioning fixture of existing technology is mostly three-jaw positioning form, although it can realize the positioning of gear to some extent, but, a set of positioning fixture can only be positioned to specific inner diameter gear, and the universality is poor, and since the positioning direction is single (usually only radial positioning can be realized), the positioning effect still has the problem of deficiency. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model aims at providing a kind of gear positioning fixture and circulating chamfer device, solve the problem of poor universality and single positioning direction of the positioning fixture of prior art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of gear positioning fixture, including base, the first annular support seat is arranged on the base, the first annular support seat is opened with several through holes that pass in and out, several the through hole is with the center of the first annular support seat as the center and is distributed in ring array, several the through hole is slidably connected with positioning rod, and the one end of each positioning rod located the outside of the first annular support seat is provided with flexible self-adapting part, the second annular support seat is concentrically arranged above the first annular support seat, several connecting rods are arranged between the second annular support seat and the first annular support seat, the inside of the second annular support seat is threaded with adjusting rod, the lower end of the adjusting rod is rotatably connected with driving block, the cross section of the driving block is tapered structure, the one end of several the positioning rod located the inside of the first annular support seat is with the surface of driving block abuts, the connecting block is fixedly connected on the positioning rod, the reset spring is fixedly connected between the connecting block and the first annular support seat, the telescopic part is vertically arranged on the positioning rod, the stop plate is horizontally arranged on the telescopic end of the telescopic part, and the axial limiting part is arranged on the telescopic part.

[0006] The utility model is further provided: the limiting rod is arranged on the base, the bottom of the driving block is provided with the limiting slot that the limiting rod slides.

[0007] The utility model further sets up: the end face shape that the positioning rod is contacted with the side surface of drive piece is compatible with the side surface of drive piece.

[0008] The utility model further sets up: the surface of drive piece is equipped with the positioning groove that extends to the top surface to the bottom surface, positioning post of setting up on the positioning rod is inserted into the positioning groove.

[0009] The utility model further sets up: the end bottom surface of stop plate is away from telescopic part is provided with guide inclined plane, the guide inclined plane is inclined upwards from the direction of being away from telescopic part.

[0010] The utility model further sets up: telescopic part includes shaft sleeve, slidingly connected with movable shaft in the shaft sleeve, the shaft direction limiting portion includes lock bolt that is threaded and is equipped with the shaft sleeve, the lock bolt and the outer wall of movable shaft are resisted.

[0011] The utility model further sets up: flexible self -adaptation part is elastic rubber block.

[0012] The utility model also provides a kind of circulation chamfer device, including the gear positioning fixture of above.

[0013] Summarized above, the utility model has following beneficial effects:

[0014] 1. by driving adjustment rod rotation, and then drive block downlink is made, its side surface pushes and pushes multiple and is resisted positioning rod, so that positioning rod moves outward until the flexible self -adaptation part of end portion is tightly closed gear inner wall, realize the degree of radial positioning, simultaneously, stop plate on positioning rod contacts and is closed the upper end surface of gear, realize the positioning in vertical direction, double positioning ensures the stability of gear in the machining process, improves processing precision;

[0015] 2. by adjusting the degree of drive block downlink, can promote positioning rod to move different distance, flexible self -adaptation part has flexible deformation ability, so that can be tightly closed gear of different inner diameter, improves the versatility of fixture. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure diagram of the positioning fixture of the utility model Figure One ;

[0017] Figure 2 It is the three-dimensional structure diagram of the positioning fixture of the utility model Figure Two .

[0018] In the figure: 1, base; 2, first annular support seat; 3, positioning rod; 4, second annular support seat; 5, connecting rod; 6, adjusting rod; 7, driving block; 8, connecting block; 9, reset spring; 10, stop plate; 11, limiting groove; 12, positioning groove; 13, guide inclined surface; 14, shaft sleeve; 15, movable shaft; 16, locking bolt; 17, elastic rubber block. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments, and it should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0021] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] The present application will be described in detail below in combination with the drawings.

[0023] Reference Figures 1-2The utility model provides a gear positioning fixture, including base 1, be equipped with the first annular support seat 2 on base 1, be equipped with a plurality of through -hole that penetrates inside and outside on the first annular support seat 2, a plurality of through -hole are arranged in ring array distribution with the center of the first annular support seat 2 as center, the positioning rod 3 is slidably connected in a plurality of through -hole, and every positioning rod 3 is equipped with flexible self -adaptation portion on the one end of first annular support seat 2 outside, the concentric second annular support seat 4 of first annular support seat 2 is provided with, and the connecting rod 5 is fixedly arranged between second annular support seat 4 and first annular support seat 2, the inside of second annular support seat 4 is equipped with the adjusting rod 6 with screw thread, the lower end of adjusting rod 6 is rotatably connected with the driving block 7, the cross section of driving block 7 is the taper structure, and the taper structure of the utility model adopts the taper structure of wide top narrow bottom, and the one end of a plurality of positioning rods 3 is located in the inside of first annular support seat 2 and is in contact with the surface of driving block 7, the connecting block 8 is fixedly sleeved on the positioning rod 3, and the reset spring 9 is fixedly contacted between connecting block 8 and first annular support seat 2, and the vertical fixed telescopic portion is on the positioning rod 3, and the horizontal fixed stop plate 10 is on the telescopic end of telescopic portion, and the axial limiting portion is on the telescopic portion.

[0024] Additionally, the base 1 is fixedly provided with a limiting rod, and the bottom of the driving block 7 is provided with a limiting slot 11 for the limiting rod to slide, and the cooperation of the limiting rod and the limiting slot 11 ensures that the driving block 7 can only move in the vertical direction, preventing the driving block 7 from shifting and shaking, thereby ensuring the uniform driving force of the driving block 7 on each positioning rod 3.

[0025] The end surface of the positioning rod 3 in contact with the side surface of the driving block 7 is adapted to the side surface of the driving block 7, so that the driving block 7 can better transmit force when pushing the positioning rod 3, and reduce the friction and wear between the driving block 7 and the positioning rod 3, and reduce noise.

[0026] The surface of the driving block 7 is provided with a positioning slot 12 extending from the top surface to the bottom surface, and the positioning rod 3 is fixedly provided with a positioning column extending into the positioning slot 12, thereby enhancing the stability of the relative movement between the driving block 7 and the positioning rod 3, and limiting the movement trend of the driving block 7 from deflecting with the adjusting rod 6.

[0027] The bottom surface of the end of the stop plate 10 away from the telescopic portion is provided with a guide inclined surface 13, which inclines upward from the direction away from the telescopic portion. The design of the guide inclined surface 13 allows the stop plate 10 to be guided after it first contacts the upper end surface of the gear, so that the bottom wall of the stop plate 10 smoothly moves above the upper end surface of the gear and abuts against it.

[0028] The telescopic part comprises a shaft sleeve 14, and a movable shaft 15 is slidably connected in the shaft sleeve 14; the axial limiting part comprises a locking bolt 16 which is screwed through the shaft sleeve 14 and abuts against the outer wall of the movable shaft 15; the telescopic part realizes the telescopic function through the sliding connection of the shaft sleeve 14 and the movable shaft 15; and the locking bolt 16 is used for adjusting and fixing the position of the movable shaft 15, so that the height of the stop plate 10 is adjusted to adapt to gears with different thicknesses.

[0029] The flexible self-adapting part is an elastic rubber block 17 which has strong deformation capacity and anti-skid performance, so that the positioning effect on the gear is ensured.

[0030] Working principle: when the positioning clamp is used, first, the gear is sleeved on the outside of the whole positioning clamp; then, the adjusting rod 6 on the second annular support seat 4 is rotated, so that the adjusting rod 6 drives the driving block 7 to move downwards, the driving block 7 pushes and extrudes the plurality of positioning rods 3 which abut against the driving block 7 through the side surface of the driving block 7, so that the positioning rods 3 move outward against the resistance of the return springs 9 until the flexible self-adapting part tightly abuts against the inner wall of the gear, radial positioning is realized, at the same time, the telescopic part and the stop plate 10 thereon move synchronously with the positioning rods 3 until the stop plate 10 contacts and abuts against the upper end surface of the gear, vertical positioning is realized, and the double positioning ensures the stability of the gear in the machining process and improves the machining precision.

[0031] When the gear needs to be released, the adjusting rod 6 is reversely rotated, so that the adjusting rod 6 drives the driving block 7 to move upwards, then the driving block 7 no longer extrudes the positioning rods 3, and the positioning rods 3 move back under the return action of the return springs 9, so that the flexible self-adapting part is separated from the clamping of the inner wall of the gear.

[0032] The utility model also provides a kind of circulation chamfering device, including above-mentioned gear positioning clamp, so the circulation chamfering device with the gear positioning clamp also has identical technical effect.

[0033] The above is only preferred embodiment of the utility model, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and any technical scheme under the idea of the utility model belongs to the protection scope of the utility model. It should be pointed out that, for the ordinary skilled in the art, some improvements and decorations without departing from the principle of the utility model can also be considered as the protection scope of the utility model.

Claims

1. A gear positioning fixture, characterized by: The utility model provides a kind of positioning fixture for gear, including base (1), the first annular support seat (2) is provided on the base (1), the first annular support seat (2) is opened with several through holes that pass in and out, several The through holes are arranged in annular array with the center of the first annular support seat (2) as center, several positioning rods (3) are slidably connected in the through hole, and the end of each positioning rod (3) located outside the first annular support seat (2) is provided with flexible adaptive part, the second annular support seat (4) is concentrically arranged above the first annular support seat (2), the second annular support seat (4) and the first annular support seat (2) are provided with several connecting rods (5), the inside of the second annular support seat (4) is threaded with adjusting rod (6), the lower end of the adjusting rod (6) is rotatably connected with driving block (7), the cross section of the driving block (7) is tapered structure, the end of several positioning rods (3) located inside the first annular support seat (2) is abutted with the surface of driving block (7), the connecting block (8) is fixedly sleeved on the positioning rod (3), the reset spring (9) is fixedly abutted between the connecting block (8) and the first annular support seat (2), the telescopic part is vertically arranged on the positioning rod (3), the stop plate (10) is horizontally arranged on the telescopic end of the telescopic part, and the telescopic part has axial limiting part.

2. A gear positioning fixture according to claim 1, wherein: The base (1) is provided with a limiting rod, and the bottom of the driving block (7) is provided with a limiting groove (11) for sliding of the limiting rod.

3. A gear positioning fixture according to claim 1, wherein: The end surface of the positioning rod (3) in contact with the side surface of the driving block (7) is adapted to the side surface of the driving block (7).

4. A gear positioning fixture according to claim 1, wherein: The surface of the driving block (7) is provided with a positioning groove (12) extending from the top surface to the bottom surface, and the positioning rod (3) is provided with a positioning column extending into the positioning groove (12).

5. A gear positioning fixture according to claim 1, wherein: The end surface of the driving block (7) is provided with a limiting groove (11) for sliding of the limiting rod.

6. A gear positioning fixture according to claim 1, wherein: The end surface of the driving block (7) is provided with a limiting groove (11) for sliding of the limiting rod.

7. A gear positioning fixture according to claim 1, wherein: The telescopic part includes a shaft sleeve (14), and the movable shaft (15) is slidably connected in the shaft sleeve (14). The flexible adaptive part is an elastic rubber block (17).

8. A circulating chamfering device comprising the positioning fixture for gear according to any one of claims 1-7.

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