JP2002213685A - Installing tool for machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installing tool for machine which has no moving of the machine installation position, when the machine installed has vibrations. SOLUTION: The installing tool is of two types, one for a foundation seat and the other is for location of each foundation bolt, and the undersurface of each installing tool is furnished with projections for preventing the generation of a horizontal movement relative to the floor surface, wherein the projection is hardened for increasing the frictional coefficient with the floor surface or generating engagement, biting into the floor surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture used for installing a machine. More particularly, the present invention relates to a foundation that can prevent horizontal movement of a machine accompanied by vibration or an installation tool used for positioning.

[0002]

2. Description of the Related Art Fixtures used in machine tools are:
It has the function of transmitting vibration energy generated by the machine to the floor surface and diffusing it, and also stably supporting the machine mass.
FIG. 6 is an example of a base seat which is one of the prior art fixtures. The base 101 is mounted between the machine leg 104 and the floor 102a. A jack bolt 103 is screwed into a screw hole 104b threaded on a horizontal rib 104a of the leg 104, and the tip surface 103a is guided by contacting a positioning recess 101a formed on the upper surface of the base seat 101. After adjusting all jack bolts 103 to check the level (horizontality) of the machine, it is fixed with the lock nut 105.

[0003] The lower surface 101b of the base seat 101 is required to support the machine mass evenly on the floor surface 102a without damaging the floor surface, and that the installation position of the machine must not move even after the operation has elapsed. Lower surface 1 of conventional base seat 101 not positioned by base bolts buried in the floor
01b is a relatively smooth plane, and the coefficient of friction between the lower surface 101b and the floor surface 102a is small. Thus, the use of the installed machine may shift slightly from the original installation position over time. As a method of completely positioning the machine, although not shown, a method of installing the machine using a foundation bolt and a leveling block buried in the floor is widely practiced.

[0004] Since a processing machine used for grinding and cutting, which requires a processing accuracy in a machine tool, has a large machine weight, a floor mounting method using a base 101 and jack bolts 103 is a medium-sized machine and a small-sized machine. Often adopted on machines.
However, even in the case of small machines, where the mass of the moving body is large and the effects of reciprocating motion cannot be ignored, for example, in the case of press machines that are constantly vibrated, and in the case of large machine tools that are vibrated by moving the table, the floor is bolted with foundation bolts and leveling blocks. A fixing method for securely fixing to the surface is adopted.

[0005]

As described in the prior art, in the case of installing a machine using the base seat 101 and the jack bolts 103, since the machine is merely mounted on the floor, frequent layouts of the factory are required. It is possible to cope with any change, and it is possible to reduce the cost of the mounting parts. However, the recent increase in speed and acceleration / deceleration has caused a problem that the machine is likely to move in the horizontal direction.
Also, if the machine is fixed to the floor with anchor bolts unavoidably buried in the floor to prevent horizontal movement, it is not easy to respond to changes in factory layout, so concrete is poured into floor holes and foundation bolts are fixed There was a problem that the time required for the work at the time of the production affected the start of production and could not be ignored.

[0006] The present invention has been made in view of such problems of the prior art, and has as its object the following.
To prevent the machine from easily moving in the horizontal direction even when the machine is vibrated, provide a recess on the upper surface of the fixture to guide the tip of the jack bolt, and provide a hardened protrusion on the lower surface that sits on the floor. , To increase the coefficient of friction with the floor,
An object of the present invention is to provide a positioning fixture that prevents relative movement between the floor and the fixture and prevents horizontal movement even after the base seat or machine with enhanced braking function is installed on the floor.

[0007]

According to the first aspect of the present invention, there is provided an installation tool used as a foundation for installing a machine, wherein a shaft end of a jack bolt is provided on an upper surface of the installation tool body. A guide portion for guiding the pivotal movement, and a hardened protrusion for preventing the horizontal movement of the fixture main body by biting into the floor surface with a mechanical mass applied to the jack bolt on the lower surface of the fixture main body, and providing an installation position. It can be used as a base seat where no movement occurs.

According to the first aspect of the present invention, the hardened protrusion provided on the lower surface of the fixture is pressed against the floor surface by a mechanical load and bites, thereby reducing the coefficient of friction between the foundation seat and the floor surface. It is possible to effectively prevent horizontal movement of the machine body.

According to a second aspect of the present invention, there is provided an installation tool used for horizontal positioning at the time of installing a machine, wherein a hardened projection portion for seating on a floor is provided on a lower surface of the installation tool body, and the hardened projection is provided. The mounting fixture body is provided with a bolt insertion hole for biting the part into the floor surface and fixing it to the floor surface, and a pressing bolt for abutting against the side surface of the machine to perform horizontal positioning. Is prevented from moving in the horizontal direction, and positioning is ensured.

According to the second aspect of the present invention, the fixture body is fastened to the floor surface with bolts, so that the hardened projection provided on the lower surface of the fixture body connects the floor surface to the fixture. It is firm and completely prevents horizontal movement. Pressing bolts provided on a plurality of the fixtures on the outside of the legs of the machine frame are brought into contact with the side faces of the frame, and the fixture body is bolted to the floor surface and fixed, thereby completely preventing horizontal movement of the machine. be able to. Since the fixture of the present invention can be provided outside the frame instead of directly below the frame, in addition to the use of the fixture supported on the lower surface of the machine body according to claim 1, the fixture of the machine side support type is used together. It is possible.

According to a third aspect of the present invention, the hardened projection is formed in an insert shape so as to be fittable on the lower surface of the mounting body. According to the invention of claim 3, the cured projection provided on the lower surface of the fixture main body and the fixture main body are not made of the same material, and the cured projection is made of a different material so as to correspond to the material of the floor surface. It can be formed as an insert having a predetermined hardness. The shape of the protrusion hardened by using the insert type
The quality and manufacturing cost, the design choice of the projection shape, and the like are improved.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment in which a foundation fixture 11 and a positioning fixture 12 according to the present invention are used in a lathe. Prior to the description of the embodiment for each of the fixtures, a condition in which the entire machine is not moved by the exciting force of the moving body will be examined here.

The total mass of the machine is WS, the mass of the moving body is WT,
Let α be the maximum acceleration of the moving object, and μ be the coefficient of friction between the floor and the base seat. Actually, it is necessary to calculate for the slippery base seat depending on the arrangement and number of base seats and the height of the center of gravity of the moving body, but for simplicity, the force is evenly applied and the center of gravity of the moving body is at a sufficiently low position. Then, in order that the fixture for the foundation does not slip, when the machine is supported by n fixtures, it is necessary that WS × μ / n> WT × α / n.

That is, it is understood that it is effective to reduce the weight WT of the mass of the moving body or to increase the friction coefficient μ. When the mass WT of the moving body is given, μ must be uniquely increased. For this purpose, the sharpness, hardness, and shape of the projection projecting from the lower surface of the fixture must be specified according to the material or hardness of the floor surface. The floor of the factory is made of concrete, resin tile, wood, etc., but rarely made of steel plate. F
When the projections are formed of a C material or a steel material, a hardening process is performed so that the floor surface is finished to a hardness that allows a slight bite.

[Embodiment 1] This embodiment is a base fixture 11, in which a cured projection and a fixture body are formed of the same material. FIG. 2A is a side view of the base fixture, and FIG. 2B is a top view. In FIG. 2A,
The mounting body 1 is provided between the floor 2 and the machine legs 4. Four quadrangular pyramid projections are formed at each of four locations on the outer periphery of the lower surface of the fixture body 1. The shape of the projection is not limited to a quadrangular pyramid. Also, it is only necessary that a point such as a cone, a pyramid, or a sawtooth is formed. The arrangement of the projections
It may be provided evenly distributed over the entire lower surface of the fixture main body 1 parallel to the floor surface 2a, but it is also possible to collectively form a plurality of projections and form a plurality of sets in a distributed manner.

The base fixture 11 can be manufactured as a single body by casting, precision casting, or die casting. Guide hole 1b for positioning the tip shaft of jack bolt 3 on the upper surface
Are engraved to ensure the horizontal positioning of the machine body. The height is adjusted with all the jack bolts 3 and the jack bolts 3 are fixed with the lock nuts 5 after the leveling of the machine is completed.

The base fixture 11 exerts a load on the floor equal to the mechanical mass divided by the number of fixtures. The coefficient of friction changes depending on the state of contact between the tip of the hardened projection provided on the lower surface and the floor surface 2a. Therefore, the sharpness and hardness of the projections have an effect. Even if the floor surface is painted and smooth, the protrusion can reliably bite into the concrete floor surface main body, and the required frictional force can be easily obtained. The coefficient of friction can be expected to improve significantly compared to the conventional foundation without protrusions. Since the guide portion on the upper surface of the base fixture 11 is formed so as to guide the shaft end 3a of the jack bolt 3 without a gap, it is possible to prevent relative movement between the machine and the floor surface.

[Embodiment 2] In this embodiment, a base fixture 1 is used.
1 is an installation fixture for an insert type foundation in which a cured projection member is formed by an insert 6 of an independent component and is fitted on the lower surface of the installation tool. FIG. 3 is a side view of the insert-type foundation fixture. In FIG. 3, the external shape of the insert-type foundation fixture is the same as the foundation fixture 11 of FIG. 2 (a). In the insert-type foundation fixture of this embodiment, a blind hole 1c is formed on the lower surface of the fixture body 1, and a separately manufactured hardened material insert 6 is fitted. Hardened material insert 6 is made of hardened steel, carburized steel,
Any metal material that can be hardened, such as tool steel or stainless steel, can be used.

The hardened material insert 6 can be mass-produced by precision casting or die forging. Further, the fixture body 1 having a blind hole 1c into which the hardening insert 6 can be fitted is manufactured by casting, and the hardening material insert 6 is later press-fitted or bonded to produce an insert-type foundation mounting tool. The material of the hardening material insert 6 is not limited to a metal material, but can be specified from ceramic materials. These foundation fixtures described in the first and second embodiments are not limited to being placed on the floor. It is also possible to use it mounted on a vibration isolating base fixed to the floor.

[Embodiment 3] The present embodiment relates to a positioning fixture 12, in which a cured projection is formed of the same material as the fixture main body 7. FIG. 4A is a side view of the positioning fixture, and FIG. 4B is a top view. In FIG. 4A, the positioning fixture main body 7 has an L-shaped cross section, and four quadrangular pyramid projections 7a are formed at four locations on its lower surface. The shape of the projection is not limited to a quadrangular pyramid, and the number and positions of the projections are not limited to the present embodiment, as described in the first embodiment.

The positioning fixture 12 is fixed to the floor 2 with anchor bolts composed of bolts 8 and anchors 10. The fixture main body 7 is provided with bolt insertion holes 7b for fixing to the floor surface 2a with bolts 8. An anchor 10 on which screws for screwing bolts 8 are screwed is laid on the floor 2 fixed with concrete. Since the anchor 10 can be driven even after the installation of the machine, the positioning fixture 12 can be installed at an optimum position. Fixture body 7 fixed to floor 2 with bolts 8
In addition, a pressing bolt 9 for horizontally supporting the machine leg 4 is provided. In order to prevent the machine from moving in the horizontal direction, the necessary amount of the positioning fixture is determined at the optimum position in consideration of the moving direction and the moving range of the moving body of the machine. Note that the shape of the fixture main body 7 is not limited to the L-shape.

[Embodiment 4] The present embodiment relates to an insert-type positioning fixture 12, which is formed by fitting an appropriate number of inserts having hardened projections on the lower surface of the fixture body 7. ing. FIG. 5 is a side view of the insert-type positioning fixture. In FIG. 5, the appearance of the insert type positioning fixture is shown in FIG.
Is the same as the positioning fixture 12. A blind hole 7c is formed in the lower surface of the fixture body 7, and a hardened material insert 6 manufactured by a bed is fitted therein. Hardener insert 6
The specification of the material, manufacturing method, and mounting method to the fixture main body are the same as those already described in the second embodiment, and the description is omitted here.

The cured projections described in the first to fourth embodiments may be uniformly distributed on the lower surfaces of the fixture bodies 1 and 7. Also, a plurality of protrusions may be provided as one set, and the plurality of sets may be provided so as to be appropriately dispersed on the lower surface. Example 1
And 2 and the positioning fixture 12 described in Examples 3 and 4 can be used alone or simultaneously. Regardless of the size of the machine to be installed, selection should be made according to the presence or absence of a unit that generates the exciting force of the machine and the degree of the magnitude of the exciting force. The positioning fixture 12 can be additionally provided later depending on the result of the installation using only the base fixture 11.

[0024]

Since the fixture according to the present invention is constructed as described above, the following effects can be obtained. According to the first aspect of the present invention, the friction coefficient between the hardened projection and the floor surface can be increased by the use of the foundation mounting fixture according to the present invention, thereby stabilizing the machine. Positioning is possible. Therefore, it is easy to respond to the layout change of the equipment in the factory.

According to the second aspect of the present invention, by employing the positioning fixture according to the present invention, strong horizontal positioning can be performed without laying work using expensive foundation bolts. The foundation work with concrete pouring requires a period of startup until the machine starts operating. Therefore, frequent changes in the factory layout may be difficult to adapt. The positioning fixture of the present invention is very effective for such a situation.

In addition, since the number of mounting fixtures used can be reduced depending on the direction and magnitude of the vibration load of the machine,
The number of anchors to be installed on the floor can be minimized and the work can be reduced to a small scale. This is advantageous in that there is no concrete pouring operation and that the driving of the anchor can be carried out as required after the installation of the machine.

According to a third aspect of the present invention, the hardened protrusion is formed as a hardened material insert of another member, whereby the material can be easily specified according to the material of the floor surface, the mechanical mass and the like, and the quality of the product and the quality of the product can be improved. It is effective in terms of cost.

[Brief description of the drawings]

FIG. 1 is an embodiment in which a foundation fixture and a positioning fixture according to the present invention are used in a lathe.

FIG. 2A is a side view of a foundation fixture according to the first embodiment of the present invention, and FIG. 2B is a top view.

FIG. 3 is a side view of an insert-type foundation fixture according to a second embodiment of the present invention.

FIG. 4A is a side view of a positioning fixture according to a third embodiment of the present invention, and FIG. 4B is a top view.

FIG. 5 is a side view of an insert-type positioning fixture according to a fourth embodiment of the present invention.

FIG. 6 is a side view of a conventional base seat.

[Explanation of symbols]

 1, 7 Fixture body 2 Floor 3 Jackholt 4 Leg 5 Lock nut 6 Hardening material insert 8 Bolt 9 Pressing bolt 10 Anchor

Claims (3)

[Claims] An installation tool used as a foundation for installing a machine, wherein a guide portion for rotatably guiding a shaft end of a jack bolt is provided on an upper surface of the installation tool body, and is attached to the jack bolt on a lower surface of the installation tool body. An installation fixture for a machine, comprising a hardened projection that bites into the floor with a mechanical mass and prevents horizontal movement of the installation body, and can be used as a base seat where the installation position does not move. . 2. An installation tool for use in positioning a machine in a horizontal direction when the machine is installed, wherein a hardened projection for seating on a floor is provided on a lower surface of the installation tool body, and the hardened projection is eaten on a floor surface. The mounting fixture body is provided with an insertion hole for a bolt to be inserted and fixed to the floor surface, and a pressing bolt for abutting against the side surface of the machine to perform horizontal positioning, thereby preventing the machine from moving in the horizontal direction. An installation fixture for machines characterized by reliable positioning. 3. The mounting fixture for a machine according to claim 1, wherein the hardened projection is formed in an insert shape so as to be fitted on a lower surface of the mounting fixture main body.