CN218000161U

CN218000161U - Linear sliding table

Info

Publication number: CN218000161U
Application number: CN202222602076.4U
Authority: CN
Inventors: 黄小平
Original assignee: Misumi China Precision Machinery Trading Co ltd
Current assignee: Misumi China Precision Machinery Trading Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-09
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to the field of mechanical equipment, in particular to a linear sliding table, which mainly comprises a first sliding table part and a second sliding table part which are connected in a sliding way, wherein the side surface of the second sliding table part is provided with a plurality of fastening holes; the fastener, and close to one end of the clamp plate is a screw part, the screw part crosses the slotted hole and is connected with the fastening hole thread; the size of the long hole in the height direction is the size of a short edge, and the outer diameter size of the screw rod part is matched with the size of the short edge; the contact area of the screw portion and the long hole of the clamping plate is increased, so that the total friction force of the screw portion and the clamping plate is increased, namely, the fastener can apply larger clamping force to the clamping plate, and the stability between the fastener and the linear sliding table is enhanced.

Description

Linear sliding table

Technical Field

The utility model relates to the field of mechanical equipment, concretely relates to sharp slip table.

Background

The linear sliding table is a device with stable and reliable table top operation and high sensitivity, and the linear sliding table in the prior art is generally divided into a first sliding table part and a second sliding table part. The first sliding table part and the second sliding table part can slide relatively, and the table top of the second sliding table part can be provided with mounting holes with various standard hole positions so as to meet the requirements of different use scenes.

In the prior art, the sensitivity of the linear manual sliding table is high, so that the requirement on the positioning accuracy of the second sliding table part after sliding is also high. The fastening assembly is arranged, and after the second sliding table portion is positioned relative to the first sliding table portion, the second sliding table portion is prevented from sliding relative to the first sliding table portion through the friction force between the fastening assembly and the second sliding table portion.

However, the clamping force of the conventional fastening assembly on the second sliding table part is weak and unstable, so that the positioned second sliding table part still slightly slides relative to the first sliding table part.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sharp slip table can increase the stability of being connected between fastening components and the second slip table portion. Comprises a first slide table part; the second sliding table part is arranged on one side of the first sliding table part in the height direction and is connected with the first sliding table part in a sliding mode, the second sliding table part can do linear motion along the length direction of the linear sliding table, and a plurality of fastening holes are formed in the side face of the second sliding table part; the clamping plates are arranged on the side faces of the linear sliding table, two ends of each clamping plate in the height direction are respectively arranged on the first sliding table portion and the second sliding table portion, one end, close to the second sliding table portion, of each clamping plate extends in the length direction of the linear sliding table to form a long hole, and the long holes correspond to the fastening holes; the end, close to the second sliding table part, of the fastening piece is a screw rod part, and the screw rod part penetrates through the long hole and is in threaded connection with the fastening hole; the size of the long hole in the height direction is the size of the short edge, and the outer diameter size of the screw part is matched with the size of the short edge.

According to the technical scheme, the second sliding table portion moves linearly along the length direction, and when the second sliding table portion is located, the screw portion penetrates through the long hole of the clamping plate and is in threaded connection with the fastening hole, so that the clamping plate is tightly clamped between the fastening piece and the second sliding table portion. In addition, the minor face size of slot hole and the external diameter size phase-match of screw portion improve the screw portion and the close degree of cooperation of splint to make the total frictional force grow of screw portion and splint, the fastener can exert bigger clamp force to splint promptly, thereby makes the stability reinforcing between fastener and the second slip table portion.

Preferably, the screw further comprises a gasket, and the inner diameter of the gasket is matched with the outer diameter of the screw body.

According to above-mentioned technical scheme, set up the packing ring and can play the guard action to the surface of fastener and splint. In addition, the inner diameter of the washer is matched with the outer diameter of the screw part, so that the contact area of the washer and the fastener is further increased, and the clamping force applied by the screw part relative to the clamping plate is increased.

The washer is arranged between the fastener and the clamping plate, and one side of the washer close to and/or far away from the clamping plate is provided with burrs.

According to the technical scheme, one side of the washer with the burrs is in direct contact with the fastener and/or the clamping plate respectively, the surface roughness of the washer can be increased through the burrs, and the friction force between the washer and the fastener and/or the clamping plate is further increased.

Preferably, the elongated hole is a kidney-shaped hole.

According to the technical scheme, the waist-shaped holes can correspond to the fastening holes simultaneously, so that the fastening holes can be used for fastening and positioning the fastening pieces in the waist-shaped holes after the second sliding table part slides in a larger range in the range of the linear sliding table.

Preferably, the elongated hole, the fastener and the washer have the same axis.

According to the technical scheme, the axes of the long hole and the washer are the same, the overlapping area between the long hole and the hole of the washer is maximized, and the contact area between the clamping plate and the washer is uniformly distributed around the center of the washer, so that the friction force between the long hole and the washer can be uniformly distributed.

Preferably, the difference between the dimension of the short side and the dimension of the inner diameter of the washer is 0.05mm.

According to the technical scheme, the difference between the size of the short side and the size of the inner diameter of the washer is reduced to 0.05mm, the contact area between the clamping plate and the washer is increased, and the friction effect between the clamping plate and the washer is enhanced.

Preferably, the outer diameters of both ends of the screw part are the same size.

According to the technical scheme, the outer diameter sizes of the two ends of the screw rod portion are the same, so that the screw rod portion and the long hole are kept in matched stability, and the clamping effect of the fastening piece and the clamping plate is guaranteed.

Drawings

Fig. 1 is a schematic perspective view of a linear sliding table according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a linear sliding table provided in an embodiment of the present invention along a length direction;

fig. 3 is a schematic front view of a linear sliding table according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a gasket and a burr according to an embodiment of the present invention.

Description of the reference numerals

10 a first slide portion; 20 a second slide portion; 30, fastening pieces; 40, clamping plates; 50 gaskets;

21 fastening side faces; 22 fastening holes; 31 a screw part; 32 a head portion; 41 long holes; 51 the inner wall of the gasket; 52 a gasket outer wall; 53 burrs;

311 connecting ends; 312 fixed end; 411 inner wall of the long hole;

w width direction; l length direction; h height direction; a axis; c, a central line;

d1 long side dimension; d2 short side dimension; d3, the size of the screw; d4 inner diameter dimension.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides a linear slide table, specifically including a first table section 10, and a second table section 20 linearly slidable in a longitudinal direction l with respect to the first table section 10. The surface of the second slide table portion 20 in the longitudinal direction l is a fastening side surface 21, and a plurality of fastening holes 22 are provided in the fastening side surface 21. The linear slide further comprises a fastener 30, one end of the fastener 30 close to the second slide portion 20 is a screw portion 31 (shown in fig. 2), and the other end is a head portion 32, and the screw portion 31 is used for being in threaded connection with the fastening hole 22. The linear sliding table further comprises a clamping plate 40, and the clamping plate 40 is fixedly connected with the first sliding table part 10 and the second sliding table part 20 respectively to avoid relative sliding of the first sliding table part 10 and the second sliding table part 20. The clamping plate 40 is first fixed to the first table portion 10, and after the second table portion 20 is moved to a position where it needs to be stopped, the fastener 30 is threaded to the second table portion 20 after passing through the clamping plate 40, thereby achieving a clamping effect.

Specifically, as shown in fig. 2 and 3, the contact surface of the clamp plate 40 with the fastening side surface 21 is provided with a long hole 41, and the dimension of the long hole 41 in the height direction h is a short dimension d2, and the dimension in the length direction l is a long dimension d1. The centers of the fastening holes 22 are located on the same center line c, the long side dimension d1 is parallel to the center line c connected with the centers of the fastening holes 22, the short side dimension d2 is perpendicular to the center line c, the fastening holes 22 are distributed in the long hole 41 or outside the long hole 41 along the center line c, when the second sliding table part 20 slides along the length direction l, part of the fastening holes 22 slide out of the inside of the long hole 41 and/or part of the fastening holes 22 outside the long hole 41 slide into the long hole 41, and when the second sliding table part 20 slides in the allowable sliding range of the linear sliding table, at least one fastening hole 22 is located in the long hole 41.

Further, when the screw portion 31 is screw-coupled with the fastening hole 22, the screw portion 31 passes through the long hole 41. The outer diameter dimension of the screw portion 31, i.e. the screw dimension d3, and the screw dimension d3 are matched with the short side dimension d2 of the long hole 41, i.e. the screw dimension d3 is substantially the same as the short side dimension d2 of the long hole 41, so that the screw portion 31 is more tightly matched with the long hole 41 when passing through the long hole 41 and being in threaded connection with the fastening hole 22, the contact area between the fastening member 30 and the clamping plate 40 is increased, and a larger clamping force can be applied to the clamping plate 40 by the fastening member 30. The clamping force is transmitted to the fastening side surface 21 through the clamping plate 40, the friction force between the fastening piece 30 and the second sliding table part 20 is increased, the connection stability of the fastening piece 30 and the second sliding table part 20 is improved, the situation that the second sliding table part 20 continues to slide slightly after being positioned is avoided, and the positioning accuracy of the linear sliding table is improved.

In the present embodiment, the long hole 41 is preferably provided in a kidney-shaped shape. The screw portion 31 contacts with the inner wall 411 of the long hole 41 on both long sides in the width direction w, so that the inner wall 411 of the long hole can uniformly bear the friction force with the screw portion 31, the total friction force between the inner wall 411 of the long hole and the screw portion 31 can be increased, and the stability of the screw portion 31 relative to the inner wall 411 of the long hole is improved. Waist type hole is semicircle arc shape in length direction l's both sides, and the diameter of circular arc is equal with minor face size d2, makes splint 40 correspond with a plurality of fastening holes 22 with littleer open area, promotes splint 40's intensity.

Specifically, the linear slide table further includes a washer 50, and an inner diameter dimension d4 of the washer 50 matches the screw dimension d 3. Specifically, the washer 50 is disposed in close contact with the clamping plate 40 on the side away from the fastening side 21, and is clamped between the screw portion 31 and the clamping plate 40 by the screw connection between the screw portion 31 and the fastening hole 22. The pressure applied to the clamping plate 40 by the fastener 30 can be uniformly dispersed to the contact surface of the clamping plate 40 and the washer 50 through the washer 50, the unit area pressure of the part of the clamping plate 40 by the fastener 30 is reduced, and the contact surface of the clamping plate 40 and the washer 50 is protected. At the same time, the inner diameter dimension d4 of the washer 50 matches the screw dimension d3, so that the contact area of the washer inner wall 51 with the screw portion 31 is increased, thereby increasing the clamping force applied by the fastener 30 to the clamping plate 40.

Further, the axis a of the elongated hole 41, the fastener 30 and the washer 50 are the same. Specifically, in the present embodiment, the axes a of the long hole 41, the fastening member 30, and the washer 50 are the same, the area between the holes of the long hole 41 and the washer 50 reaches the maximum overlap, and the contact area between the clamping plate 40 and the washer 50 is uniformly arranged around the center of the washer 50, so that the friction force between the long hole 41 and the washer 50 can be uniformly distributed, which is advantageous for maintaining the clamping force, and the mounting accuracy can also be improved.

Further, the difference between the short side dimension d2 of the long hole 41 and the inner diameter dimension d4 of the washer 50 is 0.05mm. In the present embodiment, the inventor has experimentally verified that when the difference between the short side dimension d2 of the long hole 41 and the inner diameter dimension d4 of the washer 50 is 0.05mm, the washer 50 is better matched with the long hole 41 and the screw portion 31. The overlapping area between the holes between the chucking plate 40 and the washer 50 is increased, so that the chucking force applied to the surface of the chucking plate 40 is more dispersed, which is advantageous in enhancing the chucking effect and protecting the surface of the chucking plate 40.

In other embodiments of the present invention, the difference between the short dimension d2 of the long hole 41 and the inner diameter dimension d4 of the washer 50 is not limited to 0.05mm. The preferred ranges for the optional short dimension d2 of the slot 41 are: 3.2mm to 3.5mm, the preferred range for the inner diameter dimension d4 of the washer 50 is: 3mm-3.25mm. When the short side dimension d2 of the long hole 41 and the inner diameter dimension d4 of the washer 50 are within the preferred range, the long hole 41 and the washer 50 can generate stable friction force with the screw portion 31, and the difference between the short side dimension d2 of the long hole 41 and the inner diameter dimension d4 of the washer 50 is within the following range: 0.05mm-0.5mm, which will not be described in detail.

Further, one end of the screw portion 31 away from the second slide table portion 20 is a connection end 311, and the outer diameter of the connection end 311 is the same as the screw dimension d 3. The screw portion 31 has a fixed end 312 close to the clamping plate 40 and a connection end 311 far from the clamping plate 40, the connection end 311 is connected with the head portion 32 of the fastener 30, and the screw dimension d3 is the outer diameter dimension of the fixed end 312.

When the fixed end 312 is screw-coupled to the fastening hole 22, the coupling end 311 is continuously close to the clamping plate 40 and finally enters the fastening hole 22. In this embodiment, the outer diameter of the connection end 311 is equal to or approximately equal to the outer diameter of the fixing end 312 by special processing, so as to increase the contact area between the connection end 312 and the fastening hole 22 and/or the washer 50, thereby increasing the clamping force applied by the fastening member 30 to the clamping plate 40.

Further, as shown in fig. 4, a washer 50 is disposed between the fastener 30 and the clamping plate 40, and a side of the washer 50 close to and/or far from the clamping plate 40 has burrs 53.

In the present embodiment, the washer 50 without removing the burr 53 is used to increase the roughness of the surface of the washer 50, and to improve the roughness between the surface of the washer 50 in contact with the clamping plate 40 and/or the fastener 30, so that the overall firmness of the fastener 30 can be improved.

In other embodiments of the present invention, stainless steel washers are preferred and are machined by stamping. The burr 53 remaining during the processing of the gasket 50 may also be processed such that the burr 53 is formed on the gasket inner wall 51 or the gasket outer wall 52. The specific shape and size of the burr 53 will not be described in detail.

Those of skill in the art will appreciate that the specific features of the various embodiments may be adaptively separated or combined. This kind of split or the combination to specific technical feature can not lead to technical scheme skew the utility model discloses a principle, consequently, technical scheme after split or the combination will all fall into the utility model discloses an in the protection scope. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A linear slide, comprising:

a first slider section;

the second sliding table part is arranged on one side of the first sliding table part in the height direction and is in sliding connection with the first sliding table part, the second sliding table part can make linear motion along the length direction of the linear sliding table, and a plurality of fastening holes are formed in the side face of the second sliding table part;

the clamping plates are arranged on the side faces of the linear sliding table, two ends of each clamping plate in the height direction are respectively arranged on the first sliding table portion and the second sliding table portion, one end, close to the second sliding table portion, of each clamping plate extends in the length direction of the linear sliding table to form a long hole, and the long holes correspond to the fastening holes;

the end, close to the second sliding table part, of the fastening piece is a screw rod part, and the screw rod part penetrates through the long hole and is in threaded connection with the fastening hole;

the size of the long hole in the height direction is a short edge size, and the outer diameter size of the screw rod part is matched with the short edge size.

2. The linear slide of claim 1, further comprising a washer having an inner diameter sized to match an outer diameter of the shank portion.

3. The linear slide table of claim 2, wherein the washer is disposed between the fastener and the clamp plate, and a side of the washer, which is closer to and/or farther from the clamp plate, has burrs.

4. The linear slide of any one of claims 1-3, wherein said elongated holes are kidney-shaped holes.

5. The linear slide of claim 2, wherein said slot, said fastener and said washer are coaxial.

6. The linear slide of claim 2, wherein the difference between the dimension of said short side and the dimension of the inner diameter of said washer is 0.05mm.

7. The linear slide table of claim 1, wherein outer diameters of both ends of said screw portion are the same size.