CN220971990U - Casting flat grinding clamp - Google Patents

Abstract

The utility model discloses a casting flat grinding clamp; the positioning device comprises a workbench, a positioning plate is arranged at the center of the workbench, a through hole penetrating through the workbench is formed in the positioning plate, positioning pins connected with the bottom surface of the workbench are arranged in the through hole, clamping pieces are symmetrically arranged on the left side and the right side of the positioning plate, the upper end and the lower end of each clamping piece are in sliding connection with a long shaft, the left end and the right end of each long shaft are fixed on the workbench through a support, a linear driving mechanism arranged on the workbench is further connected to the middle of the back of each clamping piece, and the long shafts are respectively located on the upper side and the lower side of each positioning block. The casting flat grinding processing clamp is convenient for fixing and clamping castings and for flat grinding the castings, so that the processing efficiency is improved, and the processing quality is ensured.

Description

Casting flat grinding clamp

Technical Field

The utility model relates to the technical field of machining fixtures, in particular to a casting flat grinding machining fixture.

Background

The casting is a metal molded article obtained by various casting methods, namely, smelted liquid metal is poured into a casting mould prepared in advance by pouring, injection, suction or other casting methods, and the casting is cooled and then subjected to subsequent processing means such as polishing, so that the obtained article has certain shape, size and performance; the surface roughness of the cast after molding is large, and the cast cannot be directly used for production, and the flat grinding is to remove the surface material of the product by using a grinding wheel to obtain higher surface quality, thus belonging to the field of finish machining. The casting flat grinding is to grind the plane of the casting product to make the surface smooth, and a clamp is required to clamp and position the casting in the casting flat grinding process so as to improve the stability and the processing efficiency of casting processing.

Disclosure of utility model

The purpose of the utility model is that: the casting flat grinding machining clamp is convenient to fix and clamp castings, and is convenient to machine castings in a flat grinding mode, so that machining efficiency is improved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a foundry goods flat grinding adds clamping apparatus, includes the workstation, locating plate is installed to workstation center department, set up the through-hole that runs through the workstation on the locating plate, be provided with the locating pin of being connected with the workstation bottom surface in the through-hole, the left and right sides of locating plate is still provided with the holder symmetrically, and the upper and lower both ends and the major axis sliding connection of holder, the left and right sides both ends of major axis are fixed on the workstation through the support, the back middle part of holder still is connected with the straight line actuating mechanism of installing on the workstation, the major axis is located the upper and lower both sides of locating piece respectively.

Further, the clamping piece comprises connecting block and clamp splice, wherein connecting block is connected with the major axis from top to bottom, and the clamp splice passes through the middle part of bolt fastening at the connecting block.

Further, the inner side surface of the clamping block is also provided with a V-shaped groove.

Further, the top end of the locating pin is flush with the upper surface of the locating plate.

Further, the height of the clamping piece is larger than that of the linear driving mechanism.

Further, the linear driving mechanism adopts a linear driving cylinder, the linear driving cylinder consists of a cylinder body and a piston rod, wherein the cylinder body is fixed on the workbench, the piston rod is movably connected with the cylinder body, and the top end of the piston rod is fixed in the middle of the back surface of the clamping piece.

Further, the joint of the clamping piece and the long shaft is also provided with a ball bearing.

Further, a vertical rectangular groove is further formed in the folded corner of the V-shaped groove on the clamping block.

The beneficial effects of the utility model are as follows: according to the utility model, the positioning plate and the positioning pin are arranged to position the casting, the symmetrical clamping pieces on the long shaft can move left and right under the action of the linear driving mechanism, the linear driving mechanism on the left side drives the clamping pieces to move, and the linear driving mechanism on the right side drives the clamping pieces on the right side to move, so that the left end and the right end of the casting are contacted with and clamped with the V-shaped grooves on the clamping blocks, and the V-shaped grooves and the rectangular grooves are arranged to prevent the casting from shaking during clamping and flat grinding, and also facilitate clamping and processing of castings with different shapes.

Drawings

FIG. 1 is a schematic perspective view of a casting flat grinding clamp according to the present utility model.

FIG. 2 is a top view block diagram of the casting flat grinding clamp of the present utility model.

Fig. 3 is a front view of the structure of the casting flat grinding clamp of the present utility model.

In the figure: 1. a work table; 2. a positioning plate; 3. a through hole; 4. a positioning pin; 5. a clamping member; 6. a long axis; 7. a bracket; 8. a linear driving mechanism; 9. a connecting block; 10. clamping blocks; 11. a V-shaped groove; 12. a cylinder block; 13. a piston rod; 14. a ball bearing; 15. rectangular grooves.

Detailed Description

The utility model is further illustrated by the following description in conjunction with the accompanying drawings and specific embodiments.

Examples: as shown in figures 1-3, the casting flat grinding clamp provided by the utility model comprises a workbench 1, wherein a locating plate 2 is arranged at the center of the workbench 1, a through hole 3 penetrating through the workbench 1 is formed in the locating plate 2, locating pins 4 connected with the bottom surface of the workbench 1 are arranged in the through hole 3, clamping pieces 5 are symmetrically connected to the left side and the right side of the locating plate 2, the upper end and the lower end of each clamping piece 5 are in sliding connection with a long shaft 6, the left end and the right end of each long shaft 6 are fixed on the workbench 1 through a bracket 7, a linear driving mechanism 8 arranged on the workbench 1 is further connected to the middle part of the back of each clamping piece 5, the long shafts 6 are respectively positioned on the upper side and the lower side of a locating block, and the top ends of the locating pins 4 are flush with the upper surface of the locating plate 2.

The clamping piece 5 is composed of a connecting block 9 and a clamping block 10, wherein the connecting block 9 is connected with the long shaft 6 up and down, and the clamping block 10 is fixed in the middle of the connecting block 9 through bolts. The inner side of the clamping block 10 is also provided with V-grooves 11. The folded corner of the V-shaped groove on the clamping block 10 is also provided with a vertical rectangular groove 12. The joint of the clamping piece 5 and the long shaft 6 is also provided with a ball bearing 13. The height of the clamping member 5 is greater than the height of the linear drive mechanism 8. The linear driving mechanism 8 adopts a linear driving cylinder, the linear driving cylinder consists of a cylinder body 14 and a piston rod 15, wherein the cylinder body 14 is fixed on the workbench 1, the piston rod 15 is movably connected with the cylinder body 14, and the top end of the piston rod 15 is fixed at the middle part of the back surface of the clamping piece 5.

The left and right sides of locating piece are indent structure, and laminate with the medial surface of holder 5, use the left and right sides of locating piece as spacing face when removing, holder 5 moves along major axis 6, the foundry goods is placed on the locating piece earlier during the centre gripping to whether by the auxiliary detection of locating pin 4 of lower extreme is put in place, afterwards drive two holders 5 along major axis 6 relative movement through the linear drive mechanism 8 of both sides, simultaneously with foundry goods centre gripping on the locating piece, by the V type groove chucking of left and right sides during the centre gripping, prevent its rotation and rock, be convenient for carry out the flat grinding processing at the surface of foundry goods. The rectangular groove 12 is arranged on the V-shaped groove in the same way, so that the clamping force and stability of the inner surface of the clamping block 10 can be further increased; wherein the clamping blocks 10 are fastened on the connecting blocks 9 through bolts, and the clamping blocks 10 with different sizes or shapes can be replaced according to the size and the structural shape during actual clamping so as to improve the stability and the processing efficiency of casting processing.

According to the utility model, the positioning plate and the positioning pin are arranged to position the casting, the symmetrical clamping pieces on the long shaft can move left and right under the action of the linear driving mechanism, the linear driving mechanism on the left side drives the clamping pieces to move, and the linear driving mechanism on the right side drives the clamping pieces on the right side to move, so that the left end and the right end of the casting are contacted with and clamped with the V-shaped grooves on the clamping blocks, the V-shaped grooves and the rectangular grooves are arranged to prevent the casting from shaking during clamping and flat grinding, and the casting with different shapes can be clamped and processed conveniently, so that the processing efficiency is improved, and the processing precision is ensured.

The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.

Claims (8)

1. A casting flat grinding clamp is characterized in that: including workstation (1), locating plate (2) are installed in workstation (1) center department, set up through-hole (3) that run through workstation (1) on locating plate (2), be provided with locating pin (4) that are connected with workstation (1) bottom surface in through-hole (3), the left and right sides of locating plate (2) still symmetry is provided with clamping piece (5), and the upper and lower both ends and major axis (6) sliding connection of clamping piece (5), both ends are fixed on workstation (1) about major axis (6) through support (7), the back middle part of clamping piece (5) still is connected with straight line actuating mechanism (8) of installing on workstation (1), major axis (6) are located the upper and lower both sides of locating piece respectively.

2. The casting flat grinding clamp according to claim 1, wherein: the clamping piece (5) is composed of a connecting block (9) and a clamping block (10), wherein the connecting block (9) is connected with the long shaft (6) up and down, and the clamping block (10) is fixed in the middle of the connecting block (9) through bolts.

3. The casting flat grinding clamp according to claim 2, wherein: the inner side surface of the clamping block (10) is also provided with a V-shaped groove (11).

4. The casting flat grinding clamp according to claim 1, wherein: the top end of the locating pin (4) is flush with the upper surface of the locating plate (2).

5. The casting flat grinding clamp according to claim 1, wherein: the height of the clamping piece (5) is larger than that of the linear driving mechanism (8).

6. The casting flat grinding clamp according to claim 1, wherein: the linear driving mechanism (8) adopts a linear driving cylinder, the linear driving cylinder consists of a cylinder body (12) and a piston rod (13), wherein the cylinder body (12) is fixed on the workbench (1), the piston rod (13) is movably connected with the cylinder body (12), and the top end of the piston rod (13) is fixed at the middle part of the back surface of the clamping piece (5).

7. The casting flat grinding clamp according to claim 1, wherein: the joint of the clamping piece (5) and the long shaft (6) is also provided with a ball bearing (14).

8. A casting flat grinding jig according to claim 3, wherein: a vertical rectangular groove (15) is further formed in the folded corner of the V-shaped groove on the clamping block (10).