CN219504189U - Pressing plate fastening screw - Google Patents

Abstract

The utility model relates to the field of fasteners and discloses a pressing plate fastening screw, which comprises a screw and a base fixed at one end of the screw, wherein two sides of the base are telescopically provided with adjusting mechanisms capable of changing the distance between two sides of the base, each adjusting mechanism comprises a containing groove recessed at two sides of the base, a moving part slidably arranged in the containing groove and a driving part for driving the moving part to fully retract into or partially extend out of the containing groove, one side of the moving part close to the screw is flush with one side of the base close to the screw, and the width of the base can be adjusted by the screw so as to be matched with the widths of T-shaped grooves with different sizes on a workbench of a machining center.

Description

Pressing plate fastening screw

Technical Field

The utility model relates to the field of fasteners, in particular to a pressing plate fastening screw.

Background

When the die is processed on the processing center, the die and the workbench of the processing center are fixed by adopting a pressing plate screw, one end of the pressing plate screw is provided with a base which is in plug-in connection with a T-shaped groove on the workbench, when the base is plugged in the T-shaped groove, the pressing plate on the screw is sleeved by screwing a nut at the other end of the screw, the die below the pressing plate and the pressing plate can be pressed tightly, the movement of the die is limited, and because the T-shaped groove is an embedded groove, the wider end is positioned at the bottom of the groove and is difficult to process, so that the accuracy of the inside of the T-shaped groove is not high, and the clamping of a clamp plate bolt is always caused when the clamp plate is slipped along the T-shaped groove.

The Chinese patent with the bulletin number of CN201129345Y discloses a T-shaped nut and a T-shaped bolt, wherein the T-shaped nut comprises a step surface which is arranged towards one end of a screw rod, a magnetic attraction block is arranged on the bottom surface and the side wall of the step surface, and when the T-shaped nut is inserted into a T-shaped groove, the magnetic attraction block is attracted to the inner wall of the T-shaped groove to be fixed.

The T-shaped nut is adsorbed in the T-shaped groove through the magnetic attraction block, even if the width of the T-shaped nut is smaller than that of the T-shaped groove, relative displacement cannot be generated, and stability of the T-shaped nut is improved.

Disclosure of Invention

Aiming at the defect that the existing T-shaped nut cannot be suitable for machine tools of different types due to size fixation, the utility model aims to provide a pressing plate screw rod capable of adjusting the width of a base to adapt to the widths of T-shaped grooves of different sizes on a workbench of a machining center.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

the utility model provides a clamp plate fastening screw, includes the screw rod and is fixed in the base of screw rod one end, the flexible adjustment mechanism that is provided with of both sides interval of base that can change in both sides of base, adjustment mechanism include in the sunken storage tank in both sides of base, in the moving part of the setting of sliding in the storage tank and drive the driving part that the moving part wholly contracts or the part stretches out the storage tank, one side that the moving part is close to the screw rod flushes with one side that the base is close to the screw rod.

By adopting the scheme, the width of the screw base is adjusted by the extension and contraction of the moving part, so that the screw can be matched with T-shaped grooves with different widths, and the screw can be matched with working center working tables with various types, when the screw is matched with the nut to be screwed up, the screw can be driven to vertically upwards move to enable the base to be abutted against the T-shaped grooves, the moving part is flush with the base, so that the base and the T-shaped grooves can be enabled to generate the largest contact area as possible when being abutted against, and the screw can be guaranteed to be screwed up with enough locking force.

Preferably, the driving member includes a screw groove provided at one end of the moving member in a telescopic direction thereof and a screw connector engaged with the screw groove.

By adopting the scheme, the telescopic distance of the moving part can be accurately controlled in a threaded transmission mode, the threaded connection has a self-locking effect, and the position of the moving part is not easy to change when the screw rod moves along the T-shaped groove.

Preferably, the threaded connecting pieces are respectively arranged on two sides of the base and matched with the moving pieces, one end of each threaded connecting piece, which is close to the bottom of the accommodating groove, is rotationally connected with the bottom of the accommodating groove, and each threaded connecting piece comprises a bolt.

By adopting the scheme, the moving parts on two sides of the base are respectively adjusted to enable the screw to be positioned at the center between the two moving parts, so that the screw is ensured to be uniformly stressed during locking.

Preferably, the threaded connecting piece is a reverse bolt, the bottom of the accommodating groove is provided with a through hole through which the reverse bolt can pass, the reverse bolt comprises two threaded sections with opposite threaded directions, and the threaded grooves in the two moving pieces are arranged in opposite threaded directions.

By adopting the scheme, the moving parts at the two ends of the screw rod are simultaneously close to or far away from each other when the threads with opposite screwing directions rotate, and the moving parts at the two ends can be adjusted only by adjusting one side of the bolt.

Preferably, the counter bolt is rotatably connected in the through hole.

By adopting the scheme, certain axial force can be generated when the reverse bolt is adjusted so that the bolt axially moves in the through hole, and the reverse bolt is rotationally connected with the through hole so as to reduce the axial movement distance.

Preferably, the end of the bolt far away from the accommodating groove and the two ends of the reverse bolt are both concavely provided with a driving groove for inserting a wrench.

By adopting the scheme, the bolt or the reverse bolt is driven to rotate through the driving groove, and the movable piece can stretch out and draw back.

Preferably, the moving member is provided with a chamfer or a radius along a sidewall in a telescopic direction thereof, and a width of the moving member is set to be slightly smaller than a width of the accommodating groove.

By adopting the scheme, the movable piece can be more easily installed when being assembled into the accommodating groove by chamfering or rounding, the width of the movable piece is slightly smaller than that of the accommodating groove, so that the movable piece can stretch out and draw back in the accommodating groove more smoothly, and the movable piece is prevented from being blocked in the groove.

Preferably, the screw is detachably connected with the base.

By adopting the scheme, the base can be adapted to a large machine tool after being widened, the base can be matched with a large workpiece for locking, and screws with corresponding diameters can be selected to be connected with the base according to the volume or weight of the workpiece, so that different locking forces are achieved, and the base is suitable for different working conditions.

The utility model has the remarkable technical effects due to the adoption of the technical scheme:

1. the width of screw rod base is adjusted by the flexible of moving part, makes the T type groove of but screw rod adaptation different width, can with the machining center workstation adaptation of multiple model, can drive the vertical upward movement of screw rod and make base and T type groove butt when screw rod cooperation nut is screwed up, produces as large area of contact as possible when moving part flushes and can guarantee base and T type groove butt with the base, can guarantee the locking force of screw rod.

2. The driving piece is a reverse bolt, the moving pieces at two ends of the screw rod are simultaneously close to or far away from each other when the screw threads with opposite rotation directions rotate, the moving pieces at two ends can be adjusted only by adjusting one side of the bolt, the reverse bolt is rotationally connected with the through hole arranged on the base, the displacement caused by axial movement of the bolt during adjustment can be reduced, and the screw rod is positioned at the center of the base.

Drawings

Fig. 1 to 2 are perspective views of a platen fastening screw according to the present embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

FIG. 4 is an isometric view of a platen binding screw of the present embodiment with a counter bolt;

FIG. 5 is an enlarged view of a portion of B in FIG. 4;

FIG. 6 is a cross-sectional view of a platen fastening screw of the present embodiment;

FIG. 7 is an enlarged view of a portion of C in FIG. 6;

FIG. 8 is an isometric view of the present embodiment of a platen binding screw mated with a T-slot;

fig. 9 is a front view of the present embodiment with a clamp-down screw mated with a T-slot.

The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a screw; 2. a base; 3. a receiving groove; 4. a moving member; 401. a thread groove; 5. a driving part; 501. a bolt; 502. a reverse bolt; 503. a driving groove; 6. a through hole; 7. a spring; 8. a work table; 9. t-shaped groove.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

Example 1

According to the pressure plate fastening screw, according to the base 2 shown in fig. 1 and comprising a screw and being fixed in one end of the screw 1, the two sides of the base 2 are telescopically provided with an adjusting mechanism capable of changing the distance between the two sides of the base 2, the adjusting mechanism comprises a containing groove 3 recessed in the two sides of the base 2, a moving part 4 is arranged in the containing groove 3 in a sliding manner, one side of the moving part 4 close to the screw 1 is flush with one side of the base 2 close to the screw 1, the moving part 4 slides through a driving part arranged in the containing groove 3, the moving part is driven to extend or retract by the driving part, the width of the base 2 can be changed to adapt to T-shaped grooves 9 with different widths, according to the illustration of fig. 8 or 9, when the screw 1 is matched with a nut to be screwed up, the screw 1 can be driven to vertically upwards move to enable the base 2 to be in butt with the T-shaped grooves 9, the moving part 4 can be flush with the base 2 to ensure that the base 2 is in butt with the T-shaped grooves 9 to generate the largest contact area as possible, and the screw 1 can be ensured to be screwed up with enough locking force.

The driving piece includes the screw thread groove 401 that sets up in the one end of moving piece 4 along its flexible direction, screw thread groove 401 and a threaded connection spare cooperation, drive moving piece 4 flexible through screw drive, according to the embodiment, as shown in fig. 2 or fig. 3, the driving piece is the bolt 501 that base 2 both sides set up, the one end that the bolt is close to the holding groove 3 bottom rotates with the holding groove 3 bottom to be connected, the one end that the bolt 501 kept away from holding groove 3 is sunken to be provided with can supply spanner male driving groove 503, rotate bolt 501 can make moving piece 4 of base 2 one side flexible, can change the width of screw rod base 2 through the bolt 501 of adjustment both sides, with the different sizes of adaptation, and screw drive has the auto-lock function, can make screw rod 1 be difficult for changing in the distance that the moving piece stretches out after locking.

Example 2

This embodiment is further defined on the basis of embodiment 1.

According to fig. 5 or 7, in this embodiment, the threaded connection member is a reverse bolt 502, the reverse bolt 502 includes two threaded sections with opposite threaded directions, the threaded grooves 401 of the two moving members 4 are oppositely arranged, the bottom of the accommodating groove 3 is provided with a through hole 6 through which the reverse bolt 502 passes, according to fig. 5, in this embodiment, the reverse bolt 502 is rotatably arranged in the through hole 6, both ends of the reverse bolt 502 are recessed with driving grooves 503 for inserting a wrench, the whole adjustment of the width of the screw base 2 can be completed only by screwing the driving groove 503 on one side, and the screw is positioned at the center of the base 2 after the adjustment is completed, thereby increasing the convenience of the adjusting mechanism.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a clamp plate fastening screw, includes screw rod (1) and is fixed in base (2) of screw rod (1) one end, its characterized in that: the adjustable screw rod is characterized in that adjusting mechanisms capable of changing the distance between two sides of the base (2) are arranged on two sides of the base (2) in a telescopic mode, the adjusting mechanisms comprise accommodating grooves (3) recessed on two sides of the base (2), moving parts (4) arranged in the accommodating grooves (3) in a sliding mode and driving parts (5) driving the moving parts (4) to fully retract into or partially extend out of the accommodating grooves (3), and one side, close to the screw rod (1), of the moving parts (4) is flush with one side, close to the screw rod, of the base (2).

2. A platen fastening screw as claimed in claim 1, wherein: the driving part (5) comprises a thread groove (401) arranged at one end of the moving part (4) along the extending and retracting direction of the moving part and a thread connecting part matched with the thread groove (401).

3. A platen fastening screw as claimed in claim 2, wherein: the threaded connecting pieces are respectively arranged on two sides of the base (2) and matched with the moving pieces (4), one end of each threaded connecting piece, which is close to the bottom of the corresponding accommodating groove (3), is rotationally connected with the bottom of the corresponding accommodating groove (3), and each threaded connecting piece comprises a bolt (501).

4. A platen fastening screw as claimed in claim 2, wherein: the threaded connecting piece is a reverse bolt (502), a through hole (6) through which the reverse bolt (502) can pass is formed in the bottom of the accommodating groove (3), the reverse bolt (502) comprises two threaded sections with opposite threaded directions, and the threaded grooves (401) in the two moving pieces (4) are oppositely arranged in the threaded directions.

5. A platen fastening screw as claimed in claim 4, wherein: the reverse bolt (502) is rotatably connected in the through hole (6).

6. A platen fastening screw as claimed in claim 3 or 4, wherein: one end of the bolt (501) far away from the accommodating groove (3) and two ends of the reverse bolt (502) are both concavely provided with a driving groove (503) for inserting a spanner.

7. A platen fastening screw as claimed in claim 1, wherein: the movable member (4) is provided with a chamfer or a rounding along the side wall in the telescopic direction, and the width of the movable member (4) is slightly smaller than the width of the accommodating groove (3).

8. A platen fastening screw as claimed in claim 1, wherein: the screw (1) is detachably connected with the base (2).