CN217452989U

CN217452989U - Crankshaft positioning fixture capable of adjusting eccentricity

Info

Publication number: CN217452989U
Application number: CN202221376678.6U
Authority: CN
Inventors: 雒应学
Original assignee: Guangzhou Deshan Cnc Technology Co ltd
Current assignee: Guangzhou Deshan Cnc Technology Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-20
Anticipated expiration: 2032-06-06

Abstract

The utility model relates to a bent axle processing technology field, and a bent axle positioning fixture of adjustable eccentricity is disclosed, which comprises a mounting bas, one side of mount pad is equipped with tight seat, it is equipped with clamping mechanism to press from both sides tight seat department, the fixed backup pad that is equipped with in upper end of mount pad, the upper end fixedly connected with connecting block of pressing from both sides tight seat, the upper end fixedly connected with internal thread bush of connecting block, the spacing section of thick bamboo of horizontal part lower extreme fixedly connected with of backup pad, the upper end of a spacing section of thick bamboo rotates jointly with the terminal surface of backup pad and is connected with adjusting screw, adjusting screw's pole wall and the inner wall threaded connection of internal thread bush, two sliders of lateral wall fixedly connected with of internal thread bush, and the inner tube wall of a spacing section of thick bamboo seted up with two and slider assorted spouts. This application need not many times clamping and can adjust the position of bent axle eccentric part, does benefit to and improves holistic machining efficiency, and the clamping is convenient, and the accurate regulation and control bent axle position of people of being convenient for simultaneously avoids repeated many times to regulate and control.

Description

Crankshaft positioning fixture capable of adjusting eccentricity

Technical Field

The application relates to the technical field of crankshaft machining, in particular to a crankshaft positioning clamp capable of adjusting eccentricity.

Background

The crankshaft is the most important part in the engine, and bears the force transmitted by the connecting rod, converts the force into torque, outputs the torque through the crankshaft and drives other accessories on the engine to work, and the crankshaft needs to be turned and milled through a clamp matched with a machine tool when being machined.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology, when a crankshaft is machined through a high-speed turning and milling compound machine, the eccentric part of the crankshaft and a crankshaft main shaft have eccentric centers, so when the eccentric part is machined, the eccentric centers of the crankshaft and the crankshaft main shaft need to be adjusted to be concentric, usually, a clamp is loosened, the position of the eccentric part of the crankshaft is adjusted again, then the crankshaft is clamped again for machining, the operation is complicated, repeated clamping is needed for multiple times, the overall machining efficiency is influenced, and therefore the crankshaft positioning clamp capable of adjusting the eccentric amount is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a when adjusting the centre of a circle with bent axle eccentric core to with lathe work piece main shaft concentric in order to solve among the prior art, loosen anchor clamps and readjust bent axle eccentric core's position usually, then the clamping is processed again, and this kind of operation is comparatively loaded down with trivial details, needs the repeated clamping many times, influences holistic machining efficiency's problem, and the bent axle positioning fixture of the adjustable eccentricity who provides.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a bent axle positioning fixture of adjustable eccentricity, includes the mount pad, one side of mount pad is equipped with presss from both sides tight seat, it is equipped with clamping mechanism to press from both sides tight seat department, the fixed backup pad that is equipped with in upper end of mount pad, the upper end fixedly connected with connecting block that presss from both sides tight seat, the upper end fixedly connected with internal thread bush of connecting block, the spacing section of thick bamboo of horizontal part lower extreme fixedly connected with of backup pad, the upper end of a spacing section of thick bamboo rotates jointly with the terminal surface of backup pad and is connected with adjusting screw, adjusting screw's pole wall and internal wall threaded connection of internal thread bush, two sliders of lateral wall fixedly connected with of internal thread bush, and the inner tube wall of a spacing section of thick bamboo offer with two with slider assorted spouts.

Preferably, the side wall threaded connection of connecting block has positioning bolt, positioning bolt's rod end rotates and is connected with the locating piece, the lateral wall fixedly connected with two guide bars of locating piece, two the pole wall of guide bar all with the lateral wall sliding connection of connecting block, the lateral wall of mount pad is carved with two sets of mark group corresponding with the locating piece position.

Preferably, clamping mechanism is including setting up in the three clamp splice of pressing from both sides tight seat one side, every the equal fixedly connected with movable block of tip of clamp splice, press from both sides the lateral wall of tight seat and seted up with movable block phase-match activity groove, press from both sides the lateral wall that tight seat kept away from clamp splice one side and seted up the circular slot, the cell wall threaded connection of circular slot has tensile double-screw bolt, and is three the cell wall of activity groove has seted up three through-wire hole jointly with the cell wall of circular slot, every the equal fixedly connected with steel hank of lateral wall of movable block, and the tip of three steel hank all passes homonymy through-wire hole and is connected with tensile double-screw bolt.

Preferably, the two ends of the positioning block are fixedly connected with pointers.

Preferably, three the one end that the homonymy movable block was kept away from to the steel hank silk all common fixedly connected with rotatory piece, the lateral wall of rotatory piece rotates with the column end of tensile double-screw bolt to be connected.

Preferably, each movable block and each movable groove are arranged in a T shape.

Compared with the prior art, the application provides a bent axle positioning fixture of adjustable eccentricity, possesses following beneficial effect:

1. this bent axle positioning fixture of adjustable eccentricity, mount pad through being equipped with, press from both sides tight seat and clamping mechanism, can carry out the clamping to the bent axle, and only need rotate tensile double-screw bolt and can accomplish and stabilize the clamping, the clamping is convenient, through the backup pad that is equipped with, the connecting block, the internal thread cover, a spacing section of thick bamboo, mutually support of adjusting screw and slider, add man-hour to bent axle core portion in needs, only need rotate adjusting screw and can adjust the position of bent axle core portion partially, keep at same axis with the lathe main shaft until bent axle core portion partially, need not many times clamping, and convenient operation does benefit to and improves holistic machining efficiency.

2. This bent axle positioning fixture of adjustable eccentricity through the mutually supporting of positioning bolt, locating piece, guide bar and the mark line group that is equipped with, utilizes locating piece cooperation mark line, can be convenient for people accurate the position adjustment of accuse bent axle, in addition after the adjustment is accomplished, can increase the support intensity of mount pad to the clamping seat, do benefit to and improve holistic stability.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, and this application need not the position that many times clamping can adjust bent axle inclined to one side core portion, does benefit to and improves holistic machining efficiency, and the clamping is convenient, and the accurate regulation and control bent axle position of people of being convenient for simultaneously avoids repeated many times to regulate and control.

Drawings

FIG. 1 is a schematic structural diagram of a crankshaft positioning fixture with adjustable eccentricity;

FIG. 2 is a schematic side view of a portion of the mounting socket of FIG. 1;

fig. 3 is a schematic view of the internal structure of the clamping seat in fig. 1.

In the figure: 1. a mounting seat; 2. a clamping seat; 3. a support plate; 4. connecting blocks; 5. an internal thread sleeve; 6. a limiting cylinder; 7. adjusting the screw rod; 8. positioning a bolt; 9. positioning blocks; 10. a guide bar; 11. marking the line group; 12. a clamping block; 13. a movable block; 14. stretching the stud; 15. steel wire stranding; 16. a pointer; 17. the block is rotated.

Detailed Description

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

Referring to fig. 1-3, a bent axle positioning fixture of adjustable eccentricity, including mount pad 1, one side of mount pad 1 is equipped with presss from both sides tight seat 2, press from both sides tight seat 2 department and be equipped with clamping mechanism, the fixed backup pad 3 that is equipped with in upper end of mount pad 1, the upper end fixedly connected with connecting block 4 that presss from both sides tight seat 2, the upper end fixedly connected with internal thread bush 5 of connecting block 4, the horizontal part lower extreme fixedly connected with of backup pad 3 is spacing section of thick bamboo 6, the upper end of spacing section of thick bamboo 6 rotates jointly with the terminal surface of backup pad 3 and is connected with adjusting screw 7, adjusting screw 7's pole wall and the inner wall threaded connection of internal thread bush 5, two sliders of outer wall fixedly connected with of internal thread bush 5, and the inner wall of spacing section of thick bamboo 6 seted up with two and slider assorted spouts.

Lateral wall threaded connection of connecting block 4 has positioning bolt 8, positioning bolt 8's rod end rotates and is connected with locating piece 9, two guide bar 10 of the lateral wall fixedly connected with of locating piece 9, the pole wall of two guide bar 10 all with connecting block 4's lateral wall sliding connection, the lateral wall of mount pad 1 is carved and is equipped with two sets of marking group 11 corresponding with locating piece 9 position, follow connecting block 4 through locating piece 9 and press from both sides tight seat 2 and move together, marking group 11 on the cooperation mount pad 1, can look over the position of locating piece 9 in real time, thereby can accurate location, do benefit to the accuse adjusting position, and after the adjustment is accomplished, through the counterbalance of locating piece 9 and mount pad 1, can improve the support intensity of mount pad 1 to pressing from both sides tight seat 2.

Clamping mechanism is including setting up in the three clamp splice 12 of pressing from both sides tight seat 2 one side, the equal fixedly connected with movable block 13 of tip of every clamp splice 12, the lateral wall that presss from both sides tight seat 2 has been seted up with movable block 13 phase-match activity groove, the circular slot has been seted up to the lateral wall that presss from both sides tight seat 2 and kept away from clamp splice 12 one side, the cell wall threaded connection of circular slot has tensile double-screw bolt 14, three through-wire hole has been seted up jointly to the cell wall of three activity groove and the cell wall of circular slot, the equal fixedly connected with steel hank silk 15 of the lateral wall of every movable block 13, and the tip of three steel hank silk 15 all passes homonymy through-wire hole and is connected with tensile double-screw bolt 14, when pressing from both sides tightly, rotate tensile double-screw bolt 14, can drive three steel hank silk 15 removal and stimulate three movable splice 13 removal, thereby can make three clamp splice 12 move in opposite directions, until carrying out stable clamp to the bent axle tightly.

Both ends of the positioning block 9 are fixedly connected with pointers 16, and the positioning block 19 can conveniently indicate the marking line group 11 through the pointers 16.

The one end that homonymy movable block 13 was kept away from to three steel hank silk 15 all is common fixedly connected with rotatory piece 17, and the lateral wall of rotatory piece 17 rotates with the column end of tensile double-screw bolt 14 to be connected, through rotatory piece 17, can avoid three steel hank silk 15 to influence the rotation of tensile double-screw bolt 14.

Each movable block 13 and the movable groove are arranged in a T shape, so that the stability of the clamping block 12 in moving can be improved, and the clamping block 12 is prevented from falling off.

In this application, during the use, place the bent axle in the position between three clamp splice 12, then twist and move tensile double-screw bolt 14, can drive three steel hank silk 15 and remove and stimulate three movable block 13 and remove, thereby can make three clamp splice 12 remove in opposite directions, until carrying out stable clamp to the bent axle tightly, then process the bent axle, add man-hour to the core part partially of bent axle when needs, rotate adjusting screw 7, under the cooperation of spacing section of thick bamboo 6 and slider, can drive interior thread bush 5 and remove in vertical direction, thereby can drive through connecting block 4 and press from both sides tight seat 2 and remove, remove to suitable position until bent axle core part partially.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. A crankshaft positioning clamp capable of adjusting eccentricity comprises a mounting seat (1) and is characterized in that, one side of the mounting seat (1) is provided with a clamping seat (2), a clamping mechanism is arranged at the clamping seat (2), a supporting plate (3) is fixedly arranged at the upper end of the mounting seat (1), a connecting block (4) is fixedly connected at the upper end of the clamping seat (2), the upper end of the connecting block (4) is fixedly connected with an internal thread sleeve (5), the lower end of the horizontal part of the supporting plate (3) is fixedly connected with a limiting cylinder (6), the upper end of the limiting cylinder (6) and the end surface of the supporting plate (3) are jointly and rotatably connected with an adjusting screw rod (7), the rod wall of the adjusting screw rod (7) is in threaded connection with the inner wall of the internal thread sleeve (5), the outer side wall of the internal thread sleeve (5) is fixedly connected with two sliding blocks, and the inner cylinder wall of the limiting cylinder (6) is provided with two sliding grooves matched with the sliding blocks.

2. The crankshaft positioning fixture with the adjustable eccentricity as claimed in claim 1, wherein a positioning bolt (8) is connected to a side wall of the connecting block (4) in a threaded manner, a positioning block (9) is rotatably connected to a rod end of the positioning bolt (8), two guide rods (10) are fixedly connected to a side wall of the positioning block (9), rod walls of the two guide rods (10) are slidably connected to a side wall of the connecting block (4), and two marking line groups (11) corresponding to positions of the positioning block (9) are carved on a side wall of the mounting seat (1).

3. The crankshaft positioning fixture with the adjustable eccentricity as claimed in claim 1, wherein the clamping mechanism comprises three clamping blocks (12) arranged on one side of the clamping seat (2), the end portion of each clamping block (12) is fixedly connected with a movable block (13), the side wall of the clamping seat (2) is provided with a movable groove matched with the movable block (13), the side wall of the clamping seat (2) far away from one side of the clamping block (12) is provided with a circular groove, the groove wall of the circular groove is in threaded connection with a tensile stud (14), the groove walls of the three movable grooves and the groove wall of the circular groove are provided with three through-hole holes together, the side wall of each movable block (13) is fixedly connected with a steel strand (15), and the end portions of the three steel strand (15) penetrate through the through-hole on the same side and are connected with the tensile stud (14).

4. The crankshaft positioning fixture with the adjustable eccentricity as claimed in claim 2, wherein pointers (16) are fixedly connected to both ends of the positioning block (9).

5. The crankshaft positioning fixture with the adjustable eccentricity as claimed in claim 3, wherein the three ends of the steel strand wires (15) away from the movable block (13) on the same side are fixedly connected with a rotating block (17) together, and the side wall of the rotating block (17) is rotatably connected with the column end of the tensile stud (14).

6. The crankshaft positioning fixture with the adjustable eccentricity as claimed in claim 3, wherein each of the movable blocks (13) and the movable slots are T-shaped.