CN107186623A - Airvane grinding hand-operated clamping fixture - Google Patents

Abstract

Manual clamping fixture for air rudder grinding, including base plate, main plate, middle plate, locking sleeve, inlet sleeve, and tensioning assembly; the main plate is vertically fixed on the top of the base plate; the middle plate is parallel to the main plate and fixed relative to the main plate , there is a square hole on it; the inlet sleeve is installed in the installation hole of the main board and is fixedly connected with the main board, and one end of it extends into the interval between the main board and the middle board; the locking sleeve is located between the main board and the middle board In the interval, and through the light hole section in the inner hole, it is movably fitted on the outer wall of the inlet sleeve, and its inner hole communicates with the inner hole of the inlet sleeve and is facing the square hole of the middle plate; the tensioning component is installed on the middle plate and Associated with the locking sleeve, it can pull the locking sleeve to move toward the middle plate, and keep the locking sleeve and the middle plate relatively fixed when they are relatively closest to each other. The invention only needs one set of fixtures to realize the clamping and positioning during the air rudder grinding process, and solves the problem of relatively high cost of the existing air rudder grinding process fixtures.

Description

Air Rudder Grinding Manual Clamping Fixture

technical field

The invention relates to a fixture, in particular to a manual clamping fixture for air rudder grinding.

Background technique

The air rudder is the direction control part on the missile, which is used to control the flight attitude and flight trajectory of the missile. Its structure is as shown in Figure 7, comprises triangular plate 101, truncated cone 102, threaded rod 103 and square block 104; The right side is connected; one end with a large diameter of the frustum 102 is connected to the bottom surface of the triangular plate 101; one end of the threaded rod 103 is connected to the end face of the small end of the diameter of the frustum 102, and the end face of the other end is connected with a square block 104.

The bottom surface and the left side of the triangular plate 101 of the air rudder need to be ground. At present, two sets of fixtures are used to realize the grinding of the bottom surface and the left side of the triangular plate 101 through two clampings. Grinding the bottom surface of the triangular plate 101 is achieved by first clamping the first set of fixtures, and then grinding the left side of the triangular plate 101 by clamping the second set of fixtures.

That is, two sets of fixtures are used for grinding the air rudder, resulting in high production costs.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a manual clamping fixture for air rudder grinding, which only needs one set of fixtures to realize the clamping and positioning of the air rudder bottom surface and left side grinding process , which solves the problem that the existing air rudder grinding process needs to use two sets of fixtures and the production cost is relatively high.

The technical solution of the present invention is: the air rudder grinding and processing manual clamping fixture, including the bottom plate, the main board, the middle plate, the locking sleeve, the inlet sleeve, and the tensioning assembly;

The main board is vertically fixed on the top of the bottom plate, and there are mounting holes for the inlet sleeve to be inserted on it, and the mounting holes penetrate the two ends of the main board;

The middle plate is parallel to the main board and relatively fixed with the main board, and is provided with a square hole on it, and the square hole is adapted to the four-square shape of the air rudder;

The inner hole of the inlet sleeve is a tapered hole and adapts to the taper of the air rudder cone. The inlet sleeve is installed in the mounting hole of the main board and fixedly connected with the main board, and one end of it extends into the interval between the main board and the middle board;

There is an annular groove on the outer wall of the locking sleeve, and a plurality of warping holes are arranged in the annular groove; the inner hole of the locking sleeve is a stepped hole, and one section of the stepped hole is a threaded hole section, and the other section is a smooth hole section. The hole section can match the external thread of the air rudder threaded rod; the locking sleeve is located in the interval between the main board and the middle plate, and is movably fitted on the outer wall of the inlet sleeve through the light hole section in the inner hole. The hole communicates with the inner hole of the inlet sleeve and faces the square hole of the middle plate;

The tensioning component is installed on the middle plate and is associated with the locking sleeve, which can pull the locking sleeve to move toward the middle plate, and keep the locking sleeve and the middle plate relatively fixed when the relative distance is closest to each other.

The further technical solution of the present invention is: a tie rod hole is provided on the middle plate; the tension assembly includes a movable plate, a cylinder and an L-shaped tie rod; one end of the L-shaped tie rod extends into the annular groove of the locking sleeve, and the other end of the rod body passes through the middle The tie rod holes on the plate are fixed on the movable plate, and the number of L-shaped tie rods is not less than two, and their contact points with the locking sleeve are evenly distributed on the annular groove in a ring shape; the cylinder is fixedly installed on the middle plate, Its piston rod is fixedly connected with the movable plate.

A further technical solution of the present invention is: the number of warping holes on the locking sleeve is six, and the six warping holes center on the center of the locking sleeve and are evenly distributed in the bottom of the annular groove in a ring shape. The axis line of the dial hole is perpendicular to the axis line of the inner hole of the locking sleeve.

A further technical solution of the present invention is: a rib plate is provided between the base plate and the main plate, one side of the rib plate is fixedly connected to the base plate, and the other side is fixedly connected to the main plate.

A further technical solution of the present invention is: the square hole of the middle plate is provided with arc-shaped escape grooves at the four corners, and the arc-shaped escape grooves extend to the outside of the square hole.

Compared with the prior art, the present invention has the following advantages:

The invention only needs one set of fixtures to realize the clamping and positioning during the air rudder grinding process, and solves the problem of relatively high cost of the existing air rudder grinding process fixtures.

Below in conjunction with figure and embodiment the present invention will be further described.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is an explosion diagram of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of a locking sleeve;

The schematic diagram of the three-dimensional structure of the middle plate of Fig. 4;

5 is a schematic diagram of the three-dimensional structure of the middle plate under another viewing angle;

Fig. 6 is a schematic diagram of the state when the air rudder is clamped according to the present invention;

Fig. 7 is a three-dimensional structure diagram of the air rudder.

detailed description

Example 1:

As shown in Figure 1-4, the manual clamping fixture for air rudder grinding includes main board 1, bottom board 2, middle board 3, locking sleeve 5, inlet sleeve 4 and tensioning components.

The main board 1 is vertically welded and fixed on the upper end of the base plate 2, and is provided with a mounting hole 11 for the inlet sleeve to be inserted, and the mounting hole 11 runs through both ends of the main board 1.

The middle plate 3 is parallel to the main board 1, and is relatively fixed with the main board 1 by bolts at the four corners. The middle plate 3 is provided with a square hole 31 and a tie rod hole 32. The square hole 31 is adapted to the shape of the square 104 of the air rudder.

The inner hole of the inlet sleeve 4 is a tapered hole and is adapted to the taper of the cone 102 of the air rudder. The inlet sleeve 4 is installed in the mounting hole 11 of the main board 1 and is fixedly connected to the main board 1 by bolts, and one end thereof extends into the main board 1 and the middle plate 3 in the interval. Specifically, one end of the inlet sleeve 4 is provided with a radially protruding boss 41, and the boss 41 is provided with a bolt hole, and the mounting hole 11 of the main board 1 is provided with a stepped surface 111, and the stepped surface 111 is provided with a boss 41. The threaded holes corresponding to the bolt holes on the 41. When the inlet sleeve 4 is installed in the mounting hole 11 of the main board 1, the boss 41 is positioned against the step surface 111, and then the inlet sleeve 4 is fixedly connected with the main board 1 by bolts.

An annular groove 51 is arranged on the outer wall of the locking sleeve 5 , and a plurality of warping holes 511 are arranged in the annular groove 51 . The inner hole of the locking sleeve 5 is a stepped hole, one section of the stepped hole is a threaded hole section 521, and the other section is a light hole section 522, and the threaded hole section 521 can cooperate with the external thread on the threaded rod 103 of the air rudder. The locking sleeve 5 is located in the interval between the main board 1 and the middle board 3, and is movably fitted on the outer wall of the inlet sleeve 4 through the light hole section 522 in its inner hole, and its inner hole communicates with the inner hole of the inlet sleeve 4 And facing the square hole 31 of the middle plate 3.

The tensioning assembly is installed on the middle plate 3 and is associated with the locking sleeve 5, which can pull the locking sleeve 5 to move toward the middle plate 3, and keep the locking sleeve 5 and the middle plate 3 when they are closest to each other. relatively fixed. The tensioning assembly includes a movable plate 6, a cylinder 7 and an L-shaped tie rod 8. One end of the L-shaped tie rod 8 extends into the annular groove 51 of the locking sleeve 5, and the other end passes through the tie rod hole 32 of the middle plate 3 and is fixedly connected to the movable plate 6. There are two L-shaped tie rods 8, which are the same as The contact points of the locking sleeve 5 are evenly distributed on the annular groove 51 in an annular shape. The cylinder 7 is fixedly mounted on the middle plate 3 , and its piston rod 71 is fixedly connected with the movable plate 6 .

Preferably, the number of warping holes 511 on the locking sleeve 5 is six, and the six warping holes 511 are evenly distributed in the bottom of the annular groove 51 in a ring along the center of the locking sleeve 5, and the axis of the warping holes 511 The center line is perpendicular to the axis line of the inner hole of the locking sleeve 5 .

Preferably, a rib plate 9 is provided between the bottom plate 2 and the main board 1 , one side of the rib plate 9 is fixedly connected to the bottom plate 2 , and the other side is fixedly connected to the main board 1 .

Preferably, the square hole 31 of the middle plate 3 is provided with arc-shaped escape grooves 311 at four corners, and the arc-shaped escape grooves 311 extend to the outside of the square hole 31 .

Briefly describe the use of the present invention: place the bottom plate 2 flat on the machine tool table, align it with a dial indicator, and then fasten the bottom plate 2 to the machine tool table. Put the air rudder horizontally into the fixture, realize the positioning of the air rudder through the inner hole of the inlet sleeve 4 and the square hole 31 of the middle plate 3 (as shown in Figure 6), and then insert the hexagonal wrench into the locking sleeve 5. In the hole 511, manually rotate the locking sleeve 5 to screw it with the threaded rod 103 of the air rudder and tighten it. Then start the cylinder 7, the piston rod 71 of the cylinder stretches out, thereby pushing the movable plate 6 to move, the movable plate 6 is connected with the L-shaped pull rod 8 to drive the L-shaped pull rod 8 to move, and the L-shaped pull rod 8 pulls the locking sleeve 5 toward the middle The direction of plate 3 is moved to complete the compression of the air rudder, and finally the knife is processed to grind the bottom surface and the left side of the triangular plate 101 of the air rudder.

Claims (6)

1. airvane grinding hand-operated clamping fixture, it is characterized in that：Including mainboard (1), bottom plate (2), intermediate plate (3), entrance Cover (4), locking sleeve (5) and pulling assembly；

Mainboard (1) is fixed in bottom plate (2) upper end vertically, which is provided with and feeds the mounting hole (11) that muzzle loads, mounting hole (11) The both ends of the surface of insertion mainboard (1)；

Intermediate plate (3) is relatively fixed parallel to mainboard (1), and with mainboard (1), which is provided with square hole (31)；

Enter muzzle (4) installed in mainboard (1) mounting hole (11) in and it is affixed with mainboard (1), its one end extend into mainboard (1) with In interval between intermediate plate (3)；

The outer wall of locking sleeve (5) is provided with annular groove (51), annular groove (51) sticks up pulling hole (511) provided with multiple；Lock sleeve The endoporus of cylinder (5) is shoulder hole, and one section of shoulder hole is screw thread hole section (521), and another section is unthreaded hole section (522)；Locking sleeve (5) In interval between mainboard (1) and intermediate plate (3), and by unthreaded hole section (522) movable set in its endoporus in entrance On the outer wall for covering (4), its endoporus is connected with entering the endoporus of muzzle (4) and the square hole (31) just to intermediate plate (3)；

Pulling assembly is arranged on intermediate plate (3) and associated with locking sleeve (5), and it can pull locking sleeve (5) to intermediate plate (3) it is mobile, and it is relatively fixed the holding when closest toward each other of locking sleeve (5) and intermediate plate (3).

2. airvane grinding hand-operated clamping fixture as claimed in claim 1, it is characterized in that：Intermediate plate (3) is provided with drawing Rod aperture (32)；Pulling assembly includes portable plate (6), cylinder (7) and L-shaped pull bar (8)；Locking sleeve is stretched into L-shaped pull bar (8) one end (5) in annular groove (51), the other end body of rod is fixed on portable plate (6) after passing through the tie rod hole (32) of intermediate plate (3), L-shaped The quantity of pull bar (8) is no less than two, and the contact point of itself and locking sleeve (5) is distributed on annular groove (51) in a ring；Cylinder (7) it is fixedly mounted on intermediate plate (3), its piston rod (71) is fixedly connected with portable plate (6).

3. airvane grinding hand-operated clamping fixture as claimed in claim 2, it is characterized in that：Sticking up on locking sleeve (5) The quantity of pulling hole (511) is six, and six stick up center of the pulling hole (511) along locking sleeve (5) and are distributed on annular groove in a ring (51) bottom, sticks up axial line of the axial line perpendicular to locking sleeve (5) endoporus of pulling hole (511).

4. airvane grinding hand-operated clamping fixture as claimed in claim 3, it is characterized in that：Bottom plate (2) and mainboard (1) it Between be provided with stiffener plate (9), stiffener plate (9) side and bottom plate (2) be affixed, and opposite side and mainboard (1) are affixed.

5. the airvane grinding hand-operated clamping fixture as any one of claim 1-4, it is characterized in that：Intermediate plate (3) square hole (31) is provided with arc escape groove (311) at corner, and arc escape groove (311) extends to square hole (31) outside.

6. airvane grinding hand-operated clamping fixture as claimed in claim 5, it is characterized in that：Enter muzzle (4) one end to be provided with Radially-protruding boss (41), boss (41), which is provided with bolt hole, the mounting hole (11) of mainboard (1), is provided with step surface (111), Step surface (111) is provided with screwed hole corresponding with the bolt hole on boss (41)；When the peace for entering muzzle (4) loading mainboard (1) Fill in hole (11), boss (41) offsets and positioned with step surface (111), then muzzle (4) will be entered by bolt and fixed with mainboard (1) Connection.