CN221248468U - Positioning device for fixed-length clamping - Google Patents

Abstract

The utility model discloses a fixed-length clamping positioning device which comprises a base, wherein supporting plates are arranged on two sides of the top end of the base, guide plates are arranged on one sides of the supporting plates, sliding grooves are formed in the top ends of the guide plates, sliding blocks are arranged in the sliding grooves, a workbench is arranged on the top end of the base, an alternating current motor is arranged at the bottom end of the workbench, a driving gear is arranged at one end of a receiving plate, and a driven gear is meshed with one side of the driving gear. According to the utility model, the fixed screw is screwed, the fixed screw and the clamping limiting plate are matched with each other, the crankshaft with a fixed length can be clamped and fixed, and the driving gear is rotated by starting the alternating current motor, so that the driving gear and the driven gear are matched with each other, the opposite threaded rod is driven to start rotating, and the threaded block is driven to horizontally move.

Description

Positioning device for fixed-length clamping

Technical Field

The utility model relates to the technical field of crankshaft machining equipment, in particular to a positioning device for fixed-length clamping.

Background

The crankshaft is the most important part in the engine, 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 is subjected to the combined action of the centrifugal force of rotating mass, the periodically-changed gas inertia force and the reciprocating inertia force, so that the crankshaft bears the action of bending and torsion load, therefore, the crankshaft is required to have enough strength and rigidity, and the journal surface needs to be wear-resistant, uniform in work and good in balance;

Most of the existing crankshaft machining equipment uses bolts to clamp and position, the operation is complex, meanwhile, the length of the crankshafts is different in machining, the distance between clamps is inconvenient to adjust, the application range of the device is reduced, the practicability of the device in use is reduced, most of the existing crankshaft machining equipment is used for limiting and fixing the crankshafts, when different machining procedures of the crankshafts are carried out, workers are required to detach the crankshafts from the clamped device and then overturn the crankshafts again to fix the crankshafts by using the clamping device, the crankshafts can be machined at the same horizontal position, time and labor are wasted, and the working efficiency is reduced.

Disclosure of utility model

The utility model aims to provide a fixed-length clamping positioning device, which solves the problems that the existing crankshaft machining equipment provided in the background art is low in use flexibility, is inconvenient to freely and flexibly adjust according to the length of a crankshaft, and is inconvenient to turn over and machine the crankshaft.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a positioner that fixed length pressed from both sides tightly, includes the base, the backup pad is all installed to the both sides on base top, and one side of backup pad all installs the deflector, the top of deflector all is provided with the spout, and the inside of spout all installs the slider, the workstation is installed on the top of base, and the inside bottom of workstation installs alternating current motor, and drive gear is installed to the one end of holding plate, and one side meshing of drive gear has driven gear, driven gear's inside runs through has the subtended threaded rod, and the both ends of subtended threaded rod all are connected with one side of backup pad, the screw thread piece has all been cup jointed at the both ends in the subtended threaded rod outside, and the fly leaf is all installed on the top of fly leaf, the connecting plate is all installed on the top of the workstation of fly leaf one side, a set of the inside of connecting plate is run through there is the pivot, and the handle is installed to the one end of pivot, and another set of inside both sides of holding ring all screw thread connection has fixing screw, clamping limiting plate is all installed to fixing screw's one end.

When the positioning device for fixed-length clamping is used, the crankshaft with the same length can be limited and fixed through the mutual matching of the fixing screw and the clamping limiting plate, and the angle of the crankshaft can be adjusted through the mutual matching of the handle and the adjusting and fixing mechanism.

Preferably, the adjusting and fixing mechanism comprises a movable shaft, the movable shaft penetrates through the movable plate, a fixed guide ball is arranged at one end of the movable shaft, limiting holes are uniformly formed in the fixed guide ball, a fixing block is arranged on the outer side of the fixed guide ball, a limiting plug pin is arranged on one side of the fixing block, and one end of the limiting plug pin extends to the inside of the limiting holes.

Preferably, the limiting holes are formed in the fixed guide ball in a plurality, and the limiting holes are distributed in an annular mode on the fixed guide ball.

Preferably, the fixed guide ball is spherical, and a guide groove matched with the fixed guide ball in size and shape is formed in one side of the fixed block.

Preferably, the cross section of centre gripping limiting plate is the arc, the internally mounted of centre gripping limiting plate has rubber cushion.

Preferably, the sliding block slides in the sliding groove, and the thread block is in sliding connection with the sliding groove and the guide plate through the sliding block.

Compared with the prior art, the utility model has the beneficial effects that: the positioning device for fixed-length clamping not only can fix crankshafts with the same length and is convenient for positioning and adjusting, but also can adjust angles according to the use condition so as to meet different processing requirements of the crankshafts;

The fixed screw is screwed, the fixed screw and the clamping limiting plate are matched with each other, the crankshaft with fixed length can be clamped and fixed, and the alternating current motor is started to enable the driving gear to rotate, the driving gear and the driven gear are matched with each other so as to drive the opposite threaded rod to start rotating, and the threaded block is driven to horizontally move so as to adjust the position of the limiting ring, so that the adjusting length can be adjusted according to crankshafts with different lengths, and after the adjusting length is reached, the adjusting length is limited and fixed, so that the fixed-length clamping effect is achieved, the flexibility of the device is improved, and the working efficiency is improved;

Through turning the handle, drive pivot synchronous rotary motion in the time of the handle motion to carry out angle modulation to the bent axle of centre gripping in the spacing ring is inside, drive the loose axle synchronous motion of the bent axle other end after the bent axle motion, after angle modulation is suitable, it is fixed with fixed guide ball and fixed block through the cooperation in spacing bolt and spacing hole, thereby carry out spacing fixedly to it, prevent that the bent axle from sliding, conveniently carry out next operation.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic side sectional view of the present utility model;

FIG. 3 is a schematic perspective view of a clamping limiting plate according to the present utility model;

FIG. 4 is a schematic top view of the present utility model;

Fig. 5 is a schematic diagram of the structure a in fig. 1 according to the present utility model.

Reference numerals in the drawings illustrate: 1. a base; 2. a slide block; 3. a support plate; 4. a guide plate; 5. a chute; 6. a counter-direction threaded rod; 7. a screw block; 8. adjusting the fixing mechanism; 801. a fixed block; 802. a limit bolt; 803. a limiting hole; 804. a movable shaft; 805. fixing a guide ball; 9. a limiting ring; 10. a connecting plate; 11. a movable plate; 12. a handle; 13. a rotating shaft; 14. a work table; 15. a receiving plate; 16. an alternating current motor; 17. a drive gear; 18. a driven gear; 19. a fixed screw; 20. clamping limiting plates.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the utility model provides a positioning device that fixed length pressed from both sides tight, includes base 1, and backup pad 3 is all installed to both sides on base 1 top, and deflector 4 is all installed to one side of backup pad 3, and the top of deflector 4 all is provided with spout 5, and slider 2 is all installed to the inside of spout 5;

the sliding block 2 slides in the sliding groove 5, and the thread block 7 is in sliding connection with the sliding groove 5 and the guide plate 4 through the sliding block 2;

Specifically, as shown in fig. 1 and 4, when in use, the threaded block 7 is driven to horizontally move by the mutual cooperation of the opposite threaded rod 6, the sliding block 2 and the sliding groove 5, so that the device can be adjusted according to different crankshaft lengths, and the flexibility of the device is improved, so that more use conditions can be applied;

The workbench 14 is arranged at the top end of the base 1, the alternating current motor 16 is arranged at the bottom end of the interior of the workbench 14, the driving gear 17 is arranged at one end of the bearing plate 15, one side of the driving gear 17 is meshed with the driven gear 18, the opposite threaded rod 6 penetrates through the interior of the driven gear 18, two ends of the opposite threaded rod 6 are connected with one side of the supporting plate 3, the threaded blocks 7 are sleeved at two ends of the outer side of the opposite threaded rod 6, the movable plate 11 is arranged at the top end of the threaded blocks 7, the connecting plates 10 are arranged at the top end of the workbench 14 at one side of the movable plate 11, the rotating shaft 13 penetrates through the interior of one group of the connecting plates 10, the handle 12 is arranged at one end of the rotating shaft 13, and the adjusting and fixing mechanism 8 penetrates through the interior of the other group of the connecting plates 10;

The adjusting and fixing mechanism 8 comprises a movable shaft 804, the movable shaft 804 penetrates through the movable plate 11, a fixed guide ball 805 is arranged at one end of the movable shaft 804, limiting holes 803 are uniformly formed in the fixed guide ball 805, a fixed block 801 is arranged on the outer side of the fixed guide ball 805, a limiting plug 802 is arranged on one side of the fixed block 801, and one end of the limiting plug 802 extends into the limiting holes 803;

a plurality of limiting holes 803 are formed in the fixed guide ball 805, and the plurality of limiting holes 803 are annularly distributed in the fixed guide ball 805;

The fixed guide ball 805 is spherical, and one side of the fixed block 801 is provided with a guide groove which is matched with the fixed guide ball 805 in size and shape;

Specifically, as shown in fig. 1, 4 and 5, when in use, the handle 12 is screwed to drive the rotating shaft 13 to rotate, the movable shaft 804 is driven to synchronously rotate under the cooperation of the rotating shaft 13 and the crankshaft, the angle of the crankshaft to be processed is adjusted, and after the adjusted angle is proper, the crankshaft is limited and fixed through the mutual cooperation of the limiting bolt 802 and the limiting hole 803 on the fixed guide ball 805, thereby being convenient for workers to process the crankshaft and improving the working efficiency;

A limiting ring 9 is arranged at one end of the adjusting and fixing mechanism 8 and one end of the rotating shaft 13, two sides of the inside of the limiting ring 9 are connected with a fixing screw 19 in a threaded manner, and a clamping limiting plate 20 is arranged at one end of the fixing screw 19;

The section of the clamping limiting plate 20 is arc-shaped, and a rubber buffer cushion is arranged in the clamping limiting plate 20;

Specifically, as shown in fig. 1, 2, 3 and 4, when in use, the clamping limiting plate 20 clamps and fixes the crankshaft by arranging the rubber buffer cushion, thereby reducing the damage to the crankshaft caused by the clamping limiting plate 20.

Working principle: when the crankshaft processing device is used, firstly, when the crankshaft is processed, two ends of the crankshaft are respectively placed on the limiting rings 9, the fixing screw rods 19 are screwed, the clamping limiting plates 20 are driven to horizontally move while the fixing screw rods 19 move until the clamping limiting plates 20 are propped against the outer side wall of the crankshaft, so that the crankshaft is limited and fixed, the rubber buffer pads are arranged in the clamping limiting plates 20, damage to the crankshaft can be reduced to a certain extent, the clamped crankshaft can be replaced by the opposite operation, the operation is simple, and different crankshafts with the same length can be limited and fixed through the mutual matching of the limiting rings 9 and the fixing screw rods 19, so that the next operation is convenient;

Secondly, when the same crankshaft is required to be processed at different positions, the handle 12 is rotated to drive the rotating shaft 13 to rotate, so that the limiting ring 9 and the crankshaft are driven to synchronously rotate, the movable shaft 804 is driven to synchronously move while the crankshaft rotates, and after the angle is properly adjusted, the limiting bolt 802 is inserted into the corresponding limiting hole 803, so that the movable shaft 804 and the crankshaft are limited and fixed, the working personnel can conveniently process different positions of the crankshaft, time and labor are saved, and the working efficiency is improved;

Finally, when the crankshafts with different lengths need to be clamped in fixed length, the alternating current motor 16 is started, the alternating current motor 16 drives the driving gear 17 to rotate, the driven gear 18 is synchronously rotated through the meshing action of the driving gear 17 and the driven gear 18, the opposite direction threaded rod 6 is driven to start rotating, the thread block 7 is driven to horizontally move while the opposite direction threaded rod 6 rotates, the required length is achieved, the crankshafts are limited and clamped, the operation is convenient, the length of one crankshaft can be fixed, the adjustment can be carried out according to the length of the crankshafts, and the flexibility of the device is improved.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (6)

1. The utility model provides a positioner that fixed length pressed from both sides tightly, includes base (1), its characterized in that: the utility model discloses a rotary shaft adjusting mechanism, including base (1), backup pad (3) are all installed to both sides on base (1) top, and deflector (4) are all installed to one side of backup pad (3), deflector (4) are all provided with spout (5) on top, and slider (2) are all installed to the inside of spout (5), workstation (14) are installed on the top of base (1), and AC motor (16) are installed to the inside bottom of workstation (14), drive gear (17) are installed to one end of accepting board (15), and one side meshing of drive gear (17) has driven gear (18), driven gear (18)'s inside runs through has subtend threaded rod (6), and the both ends of subtend threaded rod (6) are all connected with one side of backup pad (3), threaded block (7) have all been cup jointed at the both ends in subtend outside threaded block (6), and movable plate (11) are all installed on the top of threaded block (7), connecting plate (10) are all installed on the top of workstation (14) on one side, a set of connecting plate (10) is inside run through handle (13), and another one end (12) is installed in the fixed mechanism of rotating shaft (8), the limiting rings (9) are arranged at one ends of the adjusting and fixing mechanism (8) and the rotating shaft (13), fixing screws (19) are connected to two sides of the inside of the limiting rings (9) in a threaded mode, and clamping limiting plates (20) are arranged at one ends of the fixing screws (19).

2. A fixed length clamp positioning device according to claim 1, wherein: the adjusting and fixing mechanism (8) comprises a movable shaft (804), the movable shaft (804) penetrates through the movable plate (11), a fixed guide ball (805) is arranged at one end of the movable shaft (804), limiting holes (803) are uniformly formed in the fixed guide ball (805), a fixing block (801) is arranged on the outer side of the fixed guide ball (805), a limiting plug pin (802) is arranged on one side of the fixing block (801), and one end of the limiting plug pin (802) extends to the inside of the limiting holes (803).

3. A fixed length clamp positioning device according to claim 2, wherein: the limiting holes (803) are formed in the fixed guide ball (805), and the limiting holes (803) are annularly distributed on the fixed guide ball (805).

4. A fixed length clamp positioning device according to claim 2, wherein: the fixed guide ball (805) is spherical, and a guide groove matched with the fixed guide ball (805) in size and shape is formed in one side of the fixed block (801).

5. A fixed length clamp positioning device according to claim 1, wherein: the cross section of centre gripping limiting plate (20) is the arc, the internally mounted of centre gripping limiting plate (20) has rubber buffer pad.

6. A fixed length clamp positioning device according to claim 1, wherein: the sliding block (2) slides in the sliding groove (5), and the threaded block (7) is in sliding connection with the sliding groove (5) and the guide plate (4) through the sliding block (2).