CN206326506U - One kind polishing die casting fixture - Google Patents

Abstract

A fixture for grinding die-casting parts, including a bottom plate, a first side plate and a second side plate are vertically installed on the bottom plate, and a first straight pin is protruded transversely toward the second side plate on the first side plate, for connecting with the die-casting parts The round hole on one end face fits, and the second side plate is equipped with a locking mechanism. The locking mechanism includes a first connecting plate, a second connecting plate, a push plate and a clamping plate. One end of the first connecting plate is connected to the The second side plate, the other end is connected to one end of the second connecting plate by a movable screw, the other end of the second connecting plate is connected to the push plate by a second screw, the push plate is fixed with a slider near the surface of the second side plate, the second There are guide rails horizontally on the two side plates, the slider is installed on the guide rails, the clamping plate is fixed on the push plate, and the clamping plate is provided with a second cylindrical pin and a clamping block transversely protruding toward the first side plate, which are used for connecting with the first side plate. The round hole and boss on the other end of the die casting fit together. The fixture of the utility model has precise positioning and simple clamping, is suitable for mass processing of products, and can improve production efficiency.

Description

A fixture for grinding die-casting parts

technical field

The utility model relates to a fixture device for grinding mechanical parts, in particular to a fixture for grinding die castings.

Background technique

At present, mechanical production and processing often require grinding of products. The usual method is that the operator directly grinds the workpiece with his hand. Especially for workpieces with large volume and complex shapes, the consistency and standardized operation of grinding cannot be effectively guaranteed, and The effect of labor protection is not good, which affects the quality of products. At present, the existing grinding fixtures for die casting generally need to be turned manually to adjust the direction, which is time-consuming and labor-intensive.

Therefore, it is necessary to provide a better grinding clip to solve the above problems.

Utility model content

Aiming at the problems existing in the prior art, the utility model provides a fixture for grinding die-casting parts, which is suitable for mechanical production and processing with large product batches, greatly improves production efficiency, has high positioning accuracy, ensures processing quality, and simplifies production procedures.

In order to achieve the above object, the utility model adopts the following technical solutions:

A fixture for grinding die-castings, used for positioning and clamping the die-castings, round holes are respectively provided on the opposite end surfaces of the die-castings, and a boss is also provided on one of the end surfaces, the fixture includes a bottom plate, the A first side plate and a second side plate are vertically installed on the bottom plate, the space between the first side plate and the second side plate is used to accommodate the die casting, and the first side plate faces the second side plate. The side plate is laterally protruded with a first cylindrical pin for matching with the round hole of the die-casting part, and the second side plate is equipped with a locking mechanism, and the locking mechanism includes a first connecting plate and a second connecting plate , a push plate and a clamping plate, one end of the first connecting plate is connected to the second side plate through a first screw, and the other end is connected to one end of the second connecting plate through a movable screw, and the second connecting plate The other end of the plate is connected to the push plate through the second screw, and the surface of the push plate close to the second side plate is fixed with a slider, and the second side plate is horizontally provided with a guide rail, and the slider is installed Set on the guide rail, the clamping plate is fixed on the push plate, and the clamping plate is provided with a second cylindrical pin and a clamping block transversely protruding toward the first side plate, for connecting with the Matching round holes and bosses of die castings.

Further, three first cylindrical pins are protruded from the first side plate, and the positions of the first cylindrical pins correspond to the three circular holes on the end surface of the die-casting part one by one.

Further, the first side plate is longitudinally installed on the bottom plate, a right-angle support plate is provided at the corner between the first side plate and the bottom plate, and one side of the right-angle support plate is fixed to the bottom plate , and the other side is fixed to the first side plate.

Further, the second side plate is L-shaped, its horizontal part is fixedly installed on the bottom plate, and the direction of the vertical part is perpendicular to the direction of the surface of the first side plate.

Further, the first side plate and the second side plate are installed on the bottom plate through a plurality of bolts, and the bottom plate is installed on the workbench through a plurality of bolts.

Further, the end of the clamping block facing the die-casting is provided with an arc-shaped groove, and the boss at the end of the die-casting is arc-shaped, when the clamping block clamps the die-casting At the same time, the boss enters the groove, and at the same time, the second cylindrical pin enters the circular hole on the end face of the die-casting part.

Further, a support block is provided at the position where the second side plate is connected to the first screw, one end of the first screw passes through the support block and is fixed to the second side plate, and the other end is used for the The first connection board is socketed.

Further, the end of the movable screw away from the second side plate protrudes a certain length from the first connecting plate or/and the second connecting plate for operation.

Further, one end of the second screw is fixed on the push plate, and the other end is socketed by the second connecting plate. When the movable screw is rotated, the first connecting plate and the second connecting plate are driven Rotate to drive the push plate and the clamping plate to move laterally along the guide rail until the first screw, the second screw and the movable screw are locked in the same line, at this time the first screw The two cylindrical pins and the clamping block cooperate with the round hole and the boss of the die-casting part.

Further, at least two laterally extending guide rails are vertically arranged on the second side plate, and at least two sliders are fixed on the push plate corresponding to the guide rails.

The beneficial effects of the utility model:

The first cylindrical pin and the second cylindrical pin are positioned in the round holes on both ends of the die casting, and the clamping block is clamped on the boss on the end face of the die casting, which makes the clamping accurate and improves the positioning accuracy. During the clamping process , the rotation pair is formed by the first screw, the second screw and the movable screw on the first connecting plate and the second connecting plate, when the movable screw is rotated, the first connecting plate and the second connecting plate are driven to rotate, thereby driving the push plate and The clamping plate moves laterally along the guide rail until the rotating pair is locked on the same line, at this time, the clamping and positioning of the die-casting parts by the fixture is realized. The fixture of the utility model is simple to clamp the workpiece, easy to operate, avoids the workpiece turning over during the grinding process, simplifies the grinding process, and the grinding head can easily reach the grinding area on the workpiece, so that the workpiece does not move during the processing And vibration, and can avoid the workpiece from deformation and damage that is not allowed, greatly improving work efficiency and grinding accuracy.

Description of drawings

Fig. 1 is the structural representation of the fixture of the utility model grinding die-casting parts;

Fig. 2 is the schematic diagram of clamping and locating die-casting with clamp for polishing die-casting of the present invention;

Fig. 3 is a structural schematic diagram of the locking mechanism in the fixture for grinding die-casting parts of the present invention;

Fig. 4 is a schematic structural view of the clamping plate in Fig. 3;

In the figure, 1—bottom plate, 2—first side plate, 3—first cylindrical pin, 4—right angle support plate, 5—second side plate, 6—horizontal part, 7—vertical part, 8—guide rail, 9 —support block, 10—first connecting plate, 11—first screw, 12—movable screw, 13—second connecting plate, 14—second screw, 15—push plate, 16—slider, 17—clamping plate , 18—second cylindrical pin, 19—clamping block, 20—groove, 21—die casting, 22—boss.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions related to "first", "second" and so on in the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

As shown in Figure 1 and Figure 2, the utility model provides a fixture for grinding die castings, which is used for positioning and clamping die castings 21. The two opposite ends of the die castings 21 are respectively provided with round holes, and one of the end faces is also provided with a boss. 22, wherein the die-casting part 21 is provided with three circular holes on the left end surface, and one circular hole and two arc-shaped bosses 22 are provided on the right end surface.

As shown in Figure 1, the fixture includes a bottom plate 1, the periphery of the bottom plate 1 is installed on the workbench by a plurality of bolts, the first side plate 2 and the second side plate 5 are vertically installed on the bottom plate 1, the first side plate 2 and the second side plate The space between the side plates 5 is used to accommodate the die casting 21 . In this embodiment, the first side plate 2 is installed on the bottom plate 1 along the longitudinal direction, and the corner between the first side plate 2 and the bottom plate 1 is provided with a right-angle support plate 4, and the horizontal side of the right-angle support plate 4 is fixed on the bottom plate 1, The vertical sides are fixed to the first side panel 2 , so as to strengthen the support for the first side panel 2 . The second side plate 5 is horizontally installed on the base plate 1, the second side plate 5 is L-shaped, the horizontal part 6 of its bottom is fixedly installed on the base plate 1, the vertical part 7 is opposite to the first side plate 2, and the vertical part 7 The board surface direction of the first side plate 2 is perpendicular to the board surface direction. Both the first side plate 2 and the second side plate 5 are installed on the bottom plate 1 by a plurality of bolts.

As shown in FIG. 1 and FIG. 2 , the first side plate 2 protrudes laterally toward the second side plate 5 with a first cylindrical pin 3 for matching with a round hole on the left end surface of the die-casting part 21 . In this embodiment, three first cylindrical pins 3 protrude from the first side plate 2 , and the positions of the first cylindrical pins 3 correspond to the three round holes on the left end surface of the die-casting part 21 one by one. Preferably, the three first cylindrical pins 3 and the three round holes are not on the same straight line.

As shown in Fig. 1 to Fig. 3, a locking mechanism is installed on the second side plate 5, and the locking mechanism includes a first connecting plate 10, a second connecting plate 13, a push plate 15 and a clamping plate 17, the first connecting plate 10, The second connecting plate 13 and the push plate 15 form a crank connecting rod slider mechanism, and utilize the dead point principle to realize locking. One end of the first connecting plate 10 is connected to the second side plate 5 through the first screw 11, and the other end is connected to one end of the second connecting plate 13 through the movable screw 12. In this embodiment, the second side plate 5 is connected to the first side plate 5. A support block 9 is provided at the position where the screw 11 is connected, and one end of the first screw 11 passes through the support block 9 and is fixed on the second side plate 5, and the other end is socketed for the first connecting plate 10, because the length of the first screw 11 is relatively short. Long, so it is supported by the support block 9, which can improve the strength and ensure the reliability of the connection. The movable screw 12 at the connecting end of the first connecting plate 10 and the second connecting plate 13 is longer, and the end of the movable screw 12 away from the second side plate 5 stretches out from the first connecting plate 10 or/and the second connecting plate 13 for a length of for operation. The other end of the second connecting plate 13 away from the first connecting plate 10 is connected to the push plate 15 through a second screw 14 , one end of the second screw 14 is fixed on the pushing plate 15 , and the other end is socketed by the second connecting plate 13 . A slide block 16 is fixed on the surface of the push plate 15 close to the second side plate 5 , and a guide rail 8 is arranged on the second side plate 5 transversely, and the slide block 16 is mounted on the guide rail 8 . At least two laterally extending guide rails 8 are vertically arranged on the second side plate 5, and at least two sliders 16 are fixed on the push plate 15 to be installed correspondingly with the guide rails 8 respectively. In this embodiment, the guide rails 8 are installed at the second There are two arranged up and down on the two side plates 5, and the upper and lower sides of the push pedal 15 back are respectively provided with a slide block 16 installed on the guide rail 8 to ensure that the movement of the push pedal 15 is along the transverse direction without deflection. In other embodiments, multiple guide rails 8 and corresponding sliders 16 may also be provided, or multiple sliders 16 may be provided on the same guide rail 8 to ensure that the push plate 15 moves laterally. The slide block 16 is sleeved on the guide rail 8 , and the barbs on both sides of the slide block 16 are undercut on the protrusions on both sides of the guide rail 8 to ensure that the slide block 16 moves along the guide rail 8 .

As shown in Fig. 1 to Fig. 4, the clamping plate 17 is fixed on the left side of the push plate 15 by bolts, and the clamping plate 17 is provided with a second cylindrical pin 18 and a clamping block 19 laterally protruding toward the first side plate 2, and the second cylindrical pin The position of the pin 18 corresponds to the position of the circular hole on the right end surface of the die-casting part 21, and the two cooperate. The clamping block 19 corresponds to the position of the boss 22 on the right side of the die-casting part 21, and both of them have the same shape. Preferably, the end of the clamping block 19 facing the die-casting part 21 is provided with an arc-shaped groove 20. The arc-shaped boss 22 is corresponding. When the clamping block 19 clamps the die-casting 21 , the boss 22 enters the groove 20 , and the second cylindrical pin 18 enters the round hole on the right side of the die-casting 21 at the same time. In this embodiment, the clamping block 19 is integrally formed with the clamping plate 17, and the second cylindrical pin 18 is installed on the end face of the clamping plate 17 by bolts. In other embodiments, the clamping block 19 can also be installed on on clamping plate 17. The utility model restricts the rotation and up-and-down translation of the left end surface of the die-casting part 21 through the three first positioning pins 3 of the first side plate 2, and restricts the die-casting part 21 through the combination of the second cylindrical pin 18 and the first cylindrical pin 3 The left and right translation and rotation realize complete positioning, and the positioning accuracy of the die casting 21 is improved through the clamping block 19 circular arc clamping support.

When the clamp is positioned and clamped on the die casting 21, the movable screw 12 is rotated counterclockwise, the left end of the first connecting plate 10 rotates counterclockwise with the first screw 11 as the center of circle, and the right end of the second connecting plate 13 is rotated counterclockwise with the second screw 14 Because the center of circle rotates clockwise, since the first screw 11 is fixed on the second side plate 5, the movable screw 12 and the second connecting plate 13 move to the left as the first connecting plate 10 rotates, and the left side of the second connecting plate 13 The second screw 14 drives the push plate 15 to move laterally to the left along the guide rail 8, and the clamping plate 17 is fixedly connected to the push plate 15, so the clamping plate 17 moves laterally to the left along with the push plate 15, and when it reaches the dead point position , that is, when the first screw 11, the movable screw 12 and the second screw 14 are on the same straight line, the fixture is in a locked state. When the boss 22 contacts, the second cylindrical pin 18 is inserted into the circular hole at the corresponding position on the right end surface of the die-casting part 21 to complete the positioning and clamping. In this embodiment, the action of turning the movable screw 12 counterclockwise is manual. It can be understood that in other embodiments, the rotation of the movable screw 12 can also be driven automatically by a motor or the like. The crank-link slider mechanism composed of the first connecting plate 10 , the second connecting plate 13 and the push plate 15 is driven by the movable screw 12 to reach the locking position, thereby realizing the clamping of the die-casting part 21 .

In this embodiment, the shape of the die-casting part 21 is fixed, which is suitable for mass production of the shape of the die-casting part 21. It can be understood that in other embodiments, the same type of complex parts can use the combination of the technical features of this embodiment .

The first cylindrical pin 3 is located above the first side plate 2, and the locking mechanism is located above the second side plate 5. The two are used for positioning and clamping the die casting 21. The die casting 21 also has a certain position below the clamp. Therefore, during the grinding process, all areas to be processed can be ground without turning over the die casting 21, which simplifies the grinding process, and the grinding head can easily reach the grinding area on the die casting 21. Through the positioning and clamping of the first positioning pin 3, the second positioning pin 18 and the clamping block 19, the die-casting part 21 does not move and vibrate during the processing, and can avoid the unacceptable deformation and damage of the die-casting part 21. , greatly improving work efficiency and grinding accuracy, and ensuring processing quality. The locking of the die-casting part 21 is realized by adopting the crank-link-slider mechanism, which makes clamping the die-casting part 21 simple and easy to operate.

The above embodiments are only used to illustrate the technical solution of the utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or equivalently replaced , without departing from the purpose and scope of the technical solution, which should be covered by the scope of the claims of the present utility model.

Claims (10)

1. one kind polishing die casting fixture, the die casting is clamped for positioning, the relative both ends of the surface difference of the die casting Provided with circular hole, wherein boss is additionally provided with end face, it is characterised in that including：Vertically first is provided with base plate, the base plate Side plate and the second side plate, space between first side plate and second side plate are used to accommodating the die casting, and described the Side plate is laterally convexly equipped with the first straight pin towards second side plate, for the cooperation of the circular hole of the die casting, described the Two side plates are provided with retaining mechanism, and the retaining mechanism includes the first connecting plate, the second connecting plate, push pedal and clamping plate, described One end of first connecting plate is by the first mode connects for screw in second side plate, and the other end is connected to described by active screw One end of two connecting plates, the other end of second connecting plate is by the second mode connects for screw in the push pedal, and the push pedal is close The surface of second side plate, which is fixed with sliding block, second side plate, is transversely provided with guide rail, and the sliding block is installed in described lead On rail, the clamping plate is fixed in the push pedal, and the clamping plate is laterally convexly equipped with the second cylinder towards first side plate Pin and gripping block, for coordinating with the circular hole and boss of the die casting.

2. polishing die casting fixture according to claim 1, it is characterised in that：Three are convexly equipped with first side plate First straight pin, the position of first straight pin and three circular holes of the die casting end face are corresponded.

3. polishing die casting fixture according to claim 1, it is characterised in that：First side plate along it is longitudinally mounted in The base plate, the corner between first side plate and the base plate is provided with right angle supporting plate, the side of the right angle supporting plate While being fixed on the base plate, first side plate is fixed in another side.

4. polishing die casting fixture according to claim 1, it is characterised in that：Second side plate is L-shaped, its level Part is fixedly installed in the base plate, and the plate face direction of vertical portion is vertical with the plate face direction of first side plate.

5. polishing die casting fixture according to claim 1, it is characterised in that：First side plate, second side Plate is installed on the base plate by multiple bolts, and the base plate is installed on workbench by multiple bolts.

6. polishing die casting fixture according to claim 1, it is characterised in that：The gripping block is towards the die casting End be provided with the groove of circular arc, the boss of the die casting end is circular arc, when the gripping block clamps the die casting During part, the boss enters in the groove, while second straight pin enters in the circular hole of the die casting end face.

7. polishing die casting fixture according to claim 1, it is characterised in that：Second side plate and first spiral shell Follow closely and support block be provided with the position of connection, second side plate is fixed in one end of first screw through the support block, The other end is socketed for first connecting plate.

8. polishing die casting fixture according to claim 1, it is characterised in that：The active screw is away from described second First connecting plate or/and the segment length of the second connecting plate one are stretched out for operation in one end of side plate.

9. polishing die casting fixture according to claim 1, it is characterised in that：One end of second screw is fixed on The push pedal, the other end is socketed for second connecting plate, when rotating the active screw, drive first connecting plate and Second connecting plate is rotated, to drive the push pedal and the clamping plate along the guide rail transverse shifting, until described first Screw, second screw and the active screw are located at locked during same straight line, now second straight pin and the folder The circular hole and boss of tight block and the die casting coordinate.

10. polishing die casting fixture according to claim 1, it is characterised in that：Vertically arranged on second side plate It is furnished with least two guide rails extended laterally, the push pedal that to be fixed with least two sliding blocks corresponding with the guide rail respectively Install.