CN211680370U

CN211680370U - Precise gear clamping jig

Info

Publication number: CN211680370U
Application number: CN201922408901.5U
Authority: CN
Inventors: 邓凯婷
Original assignee: 邓凯婷
Current assignee: Dachang huajiachangke Machinery Technology Service (Shanghai) Co.,Ltd.
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-10-16
Anticipated expiration: 2029-12-28

Abstract

The utility model relates to a gear machining technical field discloses an accurate gear clamping jig, the on-line screen storage device comprises a base, the cell body is placed to the bottom fixedly connected with of base, and be equipped with positioning mechanism and hold-down mechanism on the base, positioning mechanism includes four locating pieces, threaded rod and slider, the top symmetry of base seted up with four locating piece assorted bar holes, and four bar holes are central symmetry setting about the base, four locating pieces are located four bar holes respectively, and the both ends of four locating pieces all pass the bar hole and outwards extend, four bar holes all are equipped with the gag lever post, and the one end of gag lever post runs through the lateral wall and the outwards extension of locating piece, the both ends of four gag lever posts set up with the both sides wall fixed connection in four bar holes respectively. The utility model discloses can fix a position the gear of different internal diameters conveniently, and reduce the influence that the gear internal diameter received in the course of working, guarantee gear machining's quality.

Description

Precise gear clamping jig

Technical Field

The utility model relates to a gear machining technical field especially relates to an accurate gear clamping jig.

Background

The technological process of obtaining specific structure and precision of gear by mechanical method. The gear is a core transmission component in the movement of the automobile, the quality of the processing quality of the gear directly affects the vibration noise, the reliability and the like of an automobile assembly and even the whole automobile, and sometimes becomes a key factor for restricting the improvement of the product level.

In the prior art, when a gear product is machined and clamped, the gear product is machined and clamped through an internal support method, so that the internal diameter stress of the gear is large in the machining process, deformation is easy to generate, and the machining quality of the gear is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art when processing the clamping to the gear product, all realize through the internal stay method to the internal diameter stress of gear is great in the course of working, produces easily and warp, influences the problem of gear machining quality, and the accurate gear clamp tool that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a precise gear clamping jig comprises a base, wherein a placing groove body is fixedly connected to the bottom of the base, a positioning mechanism and a pressing mechanism are arranged on the base, the positioning mechanism comprises four positioning blocks, a threaded rod and a sliding block, strip-shaped holes matched with the four positioning blocks are symmetrically formed in the top of the base, the four strip-shaped holes are arranged in a centrosymmetric mode relative to the base, the four positioning blocks are respectively located in the four strip-shaped holes, two ends of each positioning block penetrate through the strip-shaped holes and extend outwards, a limiting rod is arranged in each strip-shaped hole, one end of each limiting rod penetrates through the side wall of each positioning block and extends outwards, two ends of each limiting rod are respectively fixedly connected with two side walls of the four strip-shaped holes, one end of each threaded rod penetrates through the side wall of the base and extends into the placing groove body, the threaded rod is rotatably connected with the, and the threaded rod is arranged between the four strip-shaped holes, the slider is in threaded connection with the threaded rod, the four side walls of the slider are connected with connecting rods in a rotating mode through first rotating shafts, and the other ends of the four connecting rods are connected with the four positioning blocks in a rotating mode through second rotating shafts respectively.

Preferably, hold-down mechanism is including compressing tightly pole, two movable rods, connecting plate and two hydraulic stem, it is located the top of base, two to compress tightly the pole one end of movable rod sets up with the both sides fixed connection who compresses tightly the pole bottom respectively, and the other end of two movable rods all runs through the lateral wall of base and extends to the standing groove internal, the top of connecting plate all extends to the internal one end fixed connection of standing groove with two movable rods, two the hydraulic stem is all fixed to be set up in the both sides of placing the cell body inner wall, and the output of two hydraulic stems all sets up with the bottom fixed connection of connecting plate, the top of connecting plate still seted up with four bar hole assorted through-holes.

Preferably, the four corners of the bottom of the base are fixedly connected with supporting legs, and the height of the supporting legs is matched with the height of the placing groove body.

Preferably, the lower side wall of the pressing rod is fixedly connected with a rubber gasket, and anti-skid grains are formed in the surface of the rubber gasket.

Preferably, the bottom of the threaded rod is rotatably connected with the inner wall of the placing groove body through a second bearing.

Preferably, the top of the threaded rod is fixedly connected with a rotating handle.

Compared with the prior art, the utility model provides an accurate gear clamping jig possesses following beneficial effect:

1. this precision gear presss from both sides tight tool through the positioning mechanism who is equipped with, can fix a position the gear of different internal diameters convenient and fast ground, and then the people's of being convenient for use.

2. This accurate gear presss from both sides tight tool through the hold-down mechanism that is equipped with, can press from both sides the gear tightly from the top down, and then reduces the influence that the gear internal diameter received in the course of working, guarantees the quality of gear machining

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can fix a position the gear of different internal diameters conveniently, and reduced the influence that the gear internal diameter received in the course of working, guarantee gear machining's quality.

Drawings

Fig. 1 is a schematic structural view of a precision gear clamping jig according to the present invention;

fig. 2 is an enlarged schematic view of a portion of a structure of a portion a in fig. 1.

In the figure: the device comprises a base 1, a placing groove 2, a positioning block 3, a threaded rod 4, a sliding block 5, a connecting rod 6, a limiting rod 7, a pressing rod 8, a movable rod 9, a connecting plate 10, a hydraulic rod 11, a hydraulic rod 12, a rubber gasket 13 and a rotating handle 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a precise gear clamping jig comprises a base 1, a placing groove body 2 is fixedly connected to the bottom of the base 1, a positioning mechanism and a pressing mechanism are arranged on the base 1, the positioning mechanism comprises four positioning blocks 3, a threaded rod 4 and a sliding block 5, strip-shaped holes matched with the four positioning blocks 3 are symmetrically formed in the top of the base 1, the four strip-shaped holes are arranged in central symmetry with respect to the base 1, the four positioning blocks 3 are respectively positioned in the four strip-shaped holes, two ends of each positioning block 3 penetrate through the strip-shaped holes and extend outwards, limiting rods 7 are arranged in the four strip-shaped holes, one end of each limiting rod 7 penetrates through the side wall of each positioning block 3 and extends outwards, two ends of each limiting rod 7 are fixedly connected with two side walls of the four strip-shaped holes, one end of the threaded rod 4 penetrates through the side wall of the base, threaded rod 4 rotates through first bearing and base 1 to be connected, and threaded rod 4 is located and sets up between four bar holes,

slider

5 and 4 threaded connection of threaded rod, and the four lateral walls of slider 5 all rotate through first pivot and are connected with connecting rod 6, and the other end of four connecting rods 6 all rotates in the bottom of four locating pieces 3 respectively through the second pivot and connects the setting.

The pressing mechanism comprises a pressing rod 8, two movable rods 9, a connecting plate 10 and two hydraulic rods 11, the pressing rod 8 is positioned above the base 1, one ends of the two movable rods 9 are respectively fixedly connected with two sides of the bottom of the pressing rod 8, the other ends of the two movable rods 9 penetrate through the side wall of the base 1 and extend into the placing groove body 2, the top of the connecting plate 10 is fixedly connected with one end of the two movable rods 9 extending into the placing groove body 2, the two hydraulic rods 11 are fixedly arranged on two sides of the inner wall of the placing groove body 2, the output ends of the two hydraulic rods 11 are fixedly connected with the bottom of the connecting plate 10, through holes matched with the four strip-shaped holes are further formed in the top of the connecting plate 10, the hydraulic rods are started, and then can drive the connecting plate to move downwards, the connecting plate moves downwards to drive the movable rods and the pressing rod to move downwards, and further the pressing rod presses the gear, the stability of the gear in the machining process is guaranteed, meanwhile, the inner diameter of the gear is prevented from being affected in the machining process through downward pressing, and the machining quality of the gear is guaranteed.

The equal fixedly connected with supporting legs 12 in bottom four corners department of base 1, and the height phase-match setting of the height of supporting legs 12 and the height of placing cell body 2 improves the stability that the device wholly supported.

The lower side wall fixedly connected with rubber gasket 13 of compressing tightly pole 8, and the surface of rubber gasket 13 has seted up anti-skidding line, can improve the frictional force between compressing tightly pole 8 and the gear, stability when improving the gear clamp.

The bottom of threaded rod 4 is passed through the second bearing and is rotated with the inner wall of placing cell body 2 and be connected the setting, can improve threaded rod 4 in the stability of rotation in-process.

The top fixedly connected with turning handle 14 of threaded rod 4 can be convenient for twist threaded rod 4 rotatory.

In the utility model, the threaded rod 4 is screwed through the threaded rod 4, so that the threaded rod is rotated 4, and then the position of the slider 5 can be limited through the four connecting rods 6, so that the threaded rod 4 can drive the slider 5 to move up and down, and then the two ends of the connecting rods 6 are respectively rotatably connected with the side wall of the slider 5 and the positioning blocks 3, so that the slider 5 can drive the four positioning blocks 3 to mutually approach or separate from each other by moving up and down, and then the gears with different inner diameters can be positioned by sleeving the gears on the four positioning blocks 3, and then the hydraulic rod 11 is started through the hydraulic rod 11, so that the hydraulic rod 11 can drive the connecting plate 10 to move downwards, the connecting plate 10 moves downwards to drive the movable rod 9 and the pressing rod 8 to move downwards, and further the pressing rod 8 presses the gears, thereby ensuring the stability of the gears in the processing process, meanwhile, the inner diameter of the gear can be reduced by downward pressing, so that the influence on the inner diameter of the gear in the machining process is reduced, and the machining quality of the gear is ensured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A precise gear clamping jig comprises a base (1) and is characterized in that a placing groove body (2) is fixedly connected to the bottom of the base (1), a positioning mechanism and a pressing mechanism are arranged on the base (1), the positioning mechanism comprises four positioning blocks (3), a threaded rod (4) and a sliding block (5), strip-shaped holes matched with the four positioning blocks (3) are symmetrically formed in the top of the base (1), the four strip-shaped holes are arranged in central symmetry relative to the base (1), the four positioning blocks (3) are respectively located in the four strip-shaped holes, two ends of each positioning block (3) penetrate through the strip-shaped holes and extend outwards, limiting rods (7) are respectively arranged in the four strip-shaped holes, one end of each limiting rod (7) penetrates through the side wall of each positioning block (3) and extends outwards, two ends of each limiting rod (7) are respectively and fixedly connected with two side walls of the four strip-shaped holes, the one end of threaded rod (4) runs through the lateral wall of base (1) and extends to and places the interior setting of cell body (2), threaded rod (4) are rotated through first bearing and base (1) and are connected, and threaded rod (4) are located and set up between four bar holes, slider (5) and threaded rod (4) threaded connection, the four lateral walls of slider (5) all rotate through first pivot and are connected with connecting rod (6), and the other end of four connecting rods (6) all rotate through the second pivot in the bottom of four locating pieces (3) respectively and connect the setting.

2. The precision gear clamping jig is characterized by comprising a pressing rod (8), two movable rods (9), a connecting plate (10) and two hydraulic rods (11), wherein the pressing rod (8) is positioned above the base (1), one ends of the two movable rods (9) are respectively and fixedly connected with two sides of the bottom of the pressing rod (8), the other ends of the two movable rods (9) penetrate through the side wall of the base (1) and extend into the placing groove body (2), the top of the connecting plate (10) is fixedly connected with one ends of the two movable rods (9) extending into the placing groove body (2), the two hydraulic rods (11) are respectively and fixedly arranged on two sides of the inner wall of the placing groove body (2), and the output ends of the two hydraulic rods (11) are respectively and fixedly connected with the bottom of the connecting plate (10), the top of the connecting plate (10) is also provided with through holes matched with the four strip-shaped holes.

3. The precision gear clamping jig is characterized in that supporting legs (12) are fixedly connected to four corners of the bottom of the base (1), and the height of each supporting leg (12) is matched with the height of the placing groove body (2).

4. The precision gear clamping jig is characterized in that a rubber gasket (13) is fixedly connected to the lower side wall of the pressing rod (8), and anti-skid grains are formed in the surface of the rubber gasket (13).

5. The precision gear clamping jig is characterized in that the bottom of the threaded rod (4) is rotatably connected with the inner wall of the placing groove body (2) through a second bearing.

6. The precision gear clamping jig of claim 1, characterized in that a rotating handle (14) is fixedly connected to the top of the threaded rod (4).