Free clamping inner hole turning clamp

Abstract

The utility model belongs to the technical field of gear ring machining, and particularly relates to a free clamping inner hole turning clamp which comprises a connecting base, the connecting base is connected with a lathe through a lathe chuck flange, the lathe chuck flange is connected with a clamp flange, and a clamp component is connected with the connecting base through the clamp flange and provides clamping power and assists in clamping and fixing a gear ring. The limiting component is connected to the connecting disc component and limits and fixes the gear ring arranged on the connecting disc component, the sliding base is in sliding fit with the sliding groove and acts in the direction of the sliding groove, the limiting block is driven to make contact with and abut against the outer ring of the gear ring, the gear ring is limited in the containing groove, and adjustment of the gear rings of different specifications and sizes is adapted; the connecting plate moves horizontally synchronously, then a linkage piece composed of the connecting rod, the movable rod and the pressing plate is driven to move, the gear ring placed in the containing groove is clamped and fixed through synchronous vertical movement of the pressing plate, and the clamping stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gear ring processing, in particular to a free clamping inner hole turning fixture. Background Art

[0002] The ring gear is heated and then mounted on the outer edge of the flywheel. After cooling, it is fastened to the outer edge of the flywheel to mesh with the starter gear, drive the crankshaft to rotate, and start the engine. The axial distance between the gear and the ring gear should be maintained at 2.5-5 mm. In this way, when the main circuit is connected, the starter gear and the flywheel ring gear are already rotating at high speed before they are meshed. When the two come into contact, they will naturally make a sound due to the collision, and the two cannot mesh, so the engine cannot start. When processing the engine ring gear, a positioning fixture is required;

[0003] The existing fixture solutions for processing the inner circle of the automobile engine gear ring mostly use fan-shaped blocks to clamp the outer circle of the gear ring. It does not have the function of adjusting the processing of multiple specifications and models of products, and it is difficult to ensure the technical requirements for the roundness of the inner hole of the processed workpiece. Therefore, it is urgently necessary to provide a free clamping inner hole turning fixture. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a free clamping lathe inner hole turning fixture, in which the slide seat slides with the slide groove and moves along the slide groove direction, driving the limit block to contact and press against the outer ring of the gear ring, restricting the gear ring in the placement groove, and adapting to the adjustment of gear rings of different specifications and sizes. The hydraulic telescopic rod drives the connecting rod to move, so that the connecting plate is synchronously translated. The connecting plate moves in a translational motion, and then drives the linkage composed of the connecting rod, the movable rod and the pressure plate to move. The pressure plate moves up and down synchronously, and the gear ring placed in the placement groove is clamped and fixed to ensure the clamping stability.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A free clamping inner hole turning fixture, comprising:

[0008] As a connecting seat for connecting the base frame, the connecting seat is connected to the lathe through the lathe chuck flange, and the lathe chuck flange is connected to the fixture flange;

[0009] The fixture component provides clamping power through the fixture flange and the connecting seat to assist in clamping and fixing the gear ring;

[0010] A connecting plate component is connected to the fixture component and serves as a bearing platform for placing the gear ring;

[0011] The limiting component is connected to the connecting disk component and is fixed to the gear ring disposed on the connecting disk component.

[0012] As a preferred solution of the free clamping inner hole turning fixture described in the utility model, wherein: a guide rod is connected to the outer side of the connecting seat, and the guide rod is arranged corresponding to the fixture component.

[0013] As a preferred solution of a free clamping lathe hole turning fixture described in the utility model, the fixture component includes a hydraulic telescopic rod connected to the connecting seat, the movable end of the hydraulic telescopic rod is connected to the connecting rod, the end of the connecting rod is connected to the connecting plate, and the connecting plate is slidably matched with the guide rod.

[0014] As a preferred solution of the free clamping lathe inner hole turning fixture described in the utility model, wherein: the outer side of the connecting plate is hinged with a connecting rod through a hinge seat, and a movable rod linked to the connecting rod is hinged on the hinge seat, the top end of the movable rod is connected to the pressure plate, and drives the pressure plate to move up and down synchronously.

[0015] As a preferred solution of the free clamping inner hole turning fixture described in the utility model, wherein: the connecting disk component includes a connecting disk as a supporting base, and a placement groove for placing the gear ring is opened on the top of the connecting disk.

[0016] As a preferred solution of a free clamping inner hole turning fixture described in the utility model, the limiting component includes multiple groups of sliding grooves opened on the top of the connecting plate, the sliding grooves are slidingly connected to the sliding seat, the front end of the sliding seat is integrally formed with a limiting block, and the limiting block is arranged corresponding to the inner side of the placement groove.

[0017] As a preferred solution of the free clamping inner hole turning fixture described in the utility model, multiple groups of sliding grooves are arranged in a circular shape with equal distances along the outer side of the placement groove with the placement groove as the center, and the slide seat is connected with a positioning bolt to fix the position of the slide seat.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The slide seat slides with the slide groove and moves along the slide groove direction, driving the limit block to contact and tighten with the outer ring of the gear ring, restricting the gear ring in the placement groove, and adapting to the adjustment of gear rings of different specifications and sizes;

[0020] 2. The hydraulic telescopic rod drives the connecting rod to move, so that the connecting plate moves synchronously. The connecting plate moves horizontally, and then drives the linkage composed of the connecting rod, the movable rod and the pressure plate to move. The pressure plate moves up and down synchronously, and the gear ring placed in the placement groove is clamped and fixed to ensure the clamping stability and facilitate subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the utility model from top view.

[0024] In the figure: 100 connecting seat, 110 lathe chuck flange, 120 fixture flange, 130 guide rod, 200 fixture component, 210 hydraulic telescopic rod, 211 connecting rod, 220 connecting plate, 221 connecting rod, 222 hinge seat, 230 movable rod, 231 pressure plate, 300 connecting plate component, 310 connecting plate, 320 placement groove, 400 limiting component, 410 slide groove, 420 slide seat, 421 limiting block, 422 positioning bolt. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] The utility model provides a free clamping inner hole turning fixture, please refer to Figure 1-2 , including a connecting seat 100, a clamp component 200 and a connecting plate component 300;

[0030] Please continue reading Figure 1-2 , as a connecting seat 100 for connecting the base frame, the connecting seat 100 is connected to the lathe through the lathe chuck flange 110, and the lathe chuck flange 110 is connected to the fixture flange 120;

[0031] The outer side of the connecting seat 100 is connected to a guide rod 130, and the guide rod 130 is arranged corresponding to the clamp component 200;

[0032] Please continue reading Figure 1-2 The clamp component 200 provides clamping power through the clamp flange 120 and the connecting seat 100 to assist in clamping and fixing the gear ring;

[0033] The clamp component 200 includes a hydraulic telescopic rod 210 threadedly connected to the connecting seat 100, the movable end of the hydraulic telescopic rod 210 is connected to the connecting rod 211, the end of the connecting rod 211 is connected to the connecting plate 220, the connecting plate 220 is slidably matched with the guide rod 130, and the hydraulic telescopic rod 210 works to drive the connecting rod 211 to move, thereby driving the connecting plate 220 to translate synchronously;

[0034] The outer side of the connecting plate 220 is hinged with a connecting rod 221 through a hinge seat 222, and a movable rod 230 linked with the connecting rod 221 is hinged on the hinge seat 222. The top of the movable rod 230 is connected to a pressing plate 231, and drives the pressing plate 231 to move up and down synchronously.

[0035] When the connecting plate 220 moves in translation, it drives the linkage member composed of the connecting rod 221, the movable rod 230 and the pressing plate 231 to move, thereby driving the pressing plate 231 to move up and down synchronously, thereby clamping and fixing the gear ring placed in the placement groove 320;

[0036] Please continue reading Figure 1-2 , the connecting plate component 300 is connected to the fixture component 200 and serves as a bearing platform for placing the gear ring;

[0037] The connecting plate component 300 includes a connecting plate 310 as a supporting base, the connecting plate 310 is connected to an external work station, and a placement groove 320 for placing a gear ring is opened on the top of the connecting plate 310;

[0038] Please continue reading Figure 2The limiting component 400 is connected to the connecting disk component 300, and the gear ring disposed on the connecting disk component 300 is limited and fixed;

[0039] The limiting component 400 includes a plurality of groups of slide grooves 410 opened on the top of the connecting plate 310, the slide grooves 410 are slidably connected to the slide seat 420, the front end of the slide seat 420 is integrally formed with a limiting block 421, and the limiting block 421 is arranged corresponding to the inner side of the placement groove 320. The plurality of groups of the slide grooves 410 are arranged in a circular shape with equal distance along the outer side of the placement groove 320 with the placement groove 320 as the center, and the slide seat 420 is connected with a positioning bolt 422 for fixing the position of the slide seat 420. The slide seat 420 slidably cooperates with the slide groove 410 and moves along the direction of the slide groove 410, thereby driving the limiting block 421 to contact and press against the outer ring of the gear ring, thereby limiting the gear ring in the placement groove 320, and then fixed in the longitudinal direction by the clamp component 200, so as to be suitable for adjusting and clamping gear rings of different specifications and sizes;

[0040] Working principle: When the utility model is in use, the slide seat 420 slides with the slide groove 410 and moves along the direction of the slide groove 410, thereby driving the limit block 421 to contact and press against the outer ring of the gear ring, restricting the gear ring in the placement groove 320. At this time, the hydraulic telescopic rod 210 drives the connecting rod 211 to move, so that the connecting plate 220 moves synchronously. The connecting plate 220 moves in a translational motion, thereby driving the linkage composed of the connecting rod 221, the movable rod 230 and the pressure plate 231 to move. The pressure plate 231 moves up and down synchronously, and the gear ring placed in the placement groove 320 is clamped and fixed, which is suitable for adjusting and clamping gear rings of different specifications and sizes.

[0041] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A free clamping inner hole turning fixture, characterized in that: include: A connection seat (100) serving as a connection base, the connection seat (100) being connected to a lathe via a lathe chuck flange (110), and the lathe chuck flange (110) being connected to a fixture flange (120); The clamp component (200) provides clamping power through the clamp flange (120) and the connecting seat (100) to assist in clamping and fixing the gear ring; A connecting plate component (300) is connected to the clamp component (200) and serves as a bearing platform for placing the gear ring; The limiting component (400) is connected to the connecting disk component (300) and is fixed to the gear ring on the connecting disk component (300).

2. A free clamping inner hole turning fixture according to claim 1, characterized in that: A guide rod (130) is connected to the outer side of the connection seat (100), and the guide rod (130) is arranged corresponding to the clamp component (200).

3. A free clamping inner hole turning fixture according to claim 2, characterized in that: The clamp component (200) comprises a hydraulic telescopic rod (210) connected to the connecting seat (100), the movable end of the hydraulic telescopic rod (210) is connected to a connecting rod (211), the end of the connecting rod (211) is connected to a connecting plate (220), and the connecting plate (220) is slidably matched with the guide rod (130).

4. A free clamping inner hole turning fixture according to claim 3, characterized in that: The outer side of the connecting plate (220) is hinged with a connecting rod (221) via a hinge seat (222), and a movable rod (230) linked to the connecting rod (221) is hinged on the hinge seat (222); the top end of the movable rod (230) is connected to a pressing plate (231) and drives the pressing plate (231) to move up and down synchronously.

5. A free clamping inner hole turning fixture according to claim 4, characterized in that: The connecting disk component (300) comprises a connecting disk (310) serving as a supporting base, and a placement groove (320) for placing a gear ring is provided on the top of the connecting disk (310).

6. A free clamping inner hole turning fixture according to claim 5, characterized in that: The limiting component (400) comprises a plurality of groups of slide grooves (410) provided on the top of the connection plate (310), the slide grooves (410) being slidably connected to a slide seat (420), the front end of the slide seat (420) being integrally formed with a limiting block (421), and the limiting block (421) being arranged corresponding to the inner side of the placement groove (320).

7. A free clamping inner hole turning fixture according to claim 6, characterized in that: The plurality of groups of slide grooves (410) are arranged in a circular shape with equal spacing along the outer side of the placement groove (320) with the placement groove (320) as the center, and a positioning bolt (422) for fixing the position of the slide seat (420) is connected to the slide seat (420).

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