CN215470978U

CN215470978U - Adjustable workbench structure

Info

Publication number: CN215470978U
Application number: CN202120943051.3U
Authority: CN
Inventors: 付波
Original assignee: Dongguan Fujia Machinery Co ltd
Current assignee: Dongguan Fujia Machinery Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-01-11
Anticipated expiration: 2031-04-30

Abstract

The utility model belongs to the technical field of machine tool workbenches, and particularly relates to an adjustable workbench structure which comprises a base, a floating mechanism, a bottom plate, a first movable plate and a second movable plate; the floating mechanism is arranged at the bottom of the base and is provided with a floating connecting end which rotatably penetrates through the base, the bottom plate is arranged on the floating connecting end, and the bottom plate is provided with a locking mechanism connected with the base; the base is provided with a first adjusting mechanism connected with the bottom plate and used for adjusting the angle of the bottom plate; the first moving plate is arranged on the bottom plate in a sliding mode, the second moving plate is arranged on the first moving plate in a sliding mode, and the moving directions of the first moving plate and the second moving plate are mutually crossed; the bottom plate is provided with a second adjusting mechanism connected with the first moving plate and used for adjusting the position of the first moving plate; and the first moving plate is provided with a third adjusting mechanism of the second moving plate, the third adjusting mechanism is used for adjusting the position of the second moving plate, and the top surface of the second moving plate is provided with an installation position.

Description

Adjustable workbench structure

Technical Field

The utility model belongs to the technical field of mechanical equipment workbenches, and particularly relates to an adjustable workbench structure.

Background

The table is an indispensable member of mechanical equipment, such as a table of a numerical control base, a table of a punching apparatus and a table of an ultrasonic welding apparatus, and the like. The workbench is used for clamping and positioning a machining workpiece, such as a workbench of a machining center. The table also has a positioning jig for positioning and fixing the mold or the positioning jig, such as a punch press and an ultrasonic welding apparatus.

When the mold or the fixture is positioned on the worktable, the mold or the fixture is usually locked on the worktable after being adjusted in position. Because the size and the model of the mould or the clamp positioned on the workbench are different, in order to meet the universality, when each mould or clamp is positioned on the workbench, a worker needs to manually adjust the position of the mould or the clamp; during each adjustment, the mold or the fixture needs to be beaten to displace the mold or the fixture, so that the position of the mold or the fixture can be adjusted. And the adjustment is carried out in a beating mode, so that more uncertainty exists, the adjustment time is long, the efficiency is low, and the clamp or the die is easily damaged to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable workbench structure, and aims to solve the problems that when a mold or a clamp is positioned on a workbench in the prior art, a worker needs to beat for adjustment, the adjustment time is long, the efficiency is low, and the clamp or the mold is easy to damage.

In order to achieve the above object, an embodiment of the present invention provides an adjustable workbench structure, which includes a base, a floating mechanism, a bottom plate, a first moving plate and a second moving plate; the floating mechanism is arranged at the bottom of the base and is provided with a floating connecting end which rotatably penetrates through the base, the bottom plate is arranged on the floating connecting end, and the bottom plate is provided with a locking mechanism connected with the base; the base is provided with a first adjusting mechanism connected with the bottom plate and used for adjusting the angle of the bottom plate; the first moving plate is arranged on the bottom plate in a sliding mode, the second moving plate is arranged on the first moving plate in a sliding mode, and the moving directions of the first moving plate and the second moving plate are mutually crossed; the bottom plate is provided with a second adjusting mechanism connected with the first moving plate and used for adjusting the position of the first moving plate; the first moving plate is provided with a third adjusting mechanism connected with the second moving plate and used for adjusting the position of the second moving plate, and the top surface of the second moving plate is provided with an installation position.

Further, the sliding directions of the first moving plate and the second moving plate are perpendicular to each other.

Further, the floating mechanism comprises a connecting seat, a supporting rod and a compression spring; the connecting seat is arranged at the bottom of the base, the supporting rod sequentially penetrates through the connecting seat and the base in a sliding manner, the bottom end of the supporting rod is provided with a limiting part, and the top end of the supporting rod is provided with a limiting supporting part; the compression spring is sleeved at the lower end of the supporting rod, the upper end of the compression spring is abutted against the connecting seat, and the lower end of the compression spring is limited on the limiting part; the bottom plate is arranged on the limiting supporting part.

Furthermore, a spherical groove is also formed in the top of the base; the bottom downwardly extending of bottom plate has spherical surface boss, spherical surface boss stretches into in the spherical recess, just spherical surface boss's sphere with the spherical surface laminating of spherical recess.

Further, the first adjusting mechanism comprises a first supporting block, a first connecting block and a first adjusting screw rod; a first groove is formed in the bottom of the bottom plate, and the first groove and the floating mechanism are eccentrically arranged; the first supporting block is arranged on the base, and the upper end of the first supporting block extends into the first groove; the first connecting block is arranged in the first groove, and a first screw hole is formed in the first connecting block; the first adjusting screw rod penetrates through a first screw hole to be connected with the first supporting block universal joint; one side of the bottom plate is provided with a first clearance hole penetrating through the first groove, and the first clearance hole is used for clearance adjustment of an adjusting piece of the first adjusting screw rod.

Further, the second adjusting mechanism comprises a second adjusting screw and a second screw hole arranged on one side of the first moving plate; a first sliding groove and a first T-shaped groove are formed in the top of the bottom plate, and one end of the first T-shaped groove is communicated with the first sliding groove; the first moving plate is arranged in the first sliding groove in a sliding mode, the second adjusting screw is arranged in the first T-shaped groove, and the second adjusting screw is connected with the second screw hole; and a second clearance hole penetrating through the first T-shaped groove is formed in one side of the bottom plate and is used for clearance adjustment of an adjusting piece of the second adjusting screw rod.

Further, the third adjusting mechanism comprises a second connecting block and a third adjusting screw rod; the bottom of the second moving plate is provided with a second sliding chute in sliding connection with the first moving plate; the top wall of the second sliding chute is provided with a second groove and a second T-shaped groove which are sunken upwards, and one end of the second T-shaped groove penetrates through the second groove; the second connecting block is arranged on the first moving plate, and the upper end of the second connecting block extends into the second groove; the third adjusting screw is arranged in the second T-shaped groove and is in threaded connection with the second connecting block; and a third clearance hole communicated with the second T-shaped groove is formed in one side of the second moving plate, and is used for clearance adjustment of an adjusting piece of the third adjusting screw rod.

Further, the plane of the second moving plate is larger than that of the first moving plate, and the second moving plate covers the first moving plate; the first moving plate is accommodated in the second chute.

The first movable plate is used for moving relative to the second movable plate, and the second movable plate is used for moving relative to the bottom plate; the connecting mechanism comprises a connecting screw rod and a connecting slide block; the improved structure is characterized in that a counter bore is formed in the second movable plate, a third sliding groove is formed in the bottom of the bottom plate, a top wall of the third sliding groove is provided with an observation first waist-shaped groove of the bottom plate, a second waist-shaped groove is formed in the first movable plate, the connecting slide block is slidably arranged in the third sliding groove, and the connecting screw rod sequentially penetrates through the counter bore, the second waist-shaped groove and the first waist-shaped groove and the connecting slide block are connected.

Furthermore, the locking mechanisms are at least two groups and are oppositely arranged; the locking mechanism is a screw locking mechanism.

One or more technical solutions in the adjustable workbench structure provided by the embodiment of the present invention at least have the following technical effects:

the mould or the clamp is fixed on the mounting position of the second moving plate; when the position of the mold or the clamp is adjusted, the locking mechanism is loosened, the floating mechanism supports the bottom plate, and therefore the bottom plate, the first moving plate and the second moving plate can be adjusted to rotate by a certain angle through the first adjusting mechanism. The front and rear positions of the first moving plate and the second moving plate are adjusted through the second adjusting mechanism, and the left and right positions of the second moving plate are adjusted through the third adjusting mechanism, so that a mold or a clamp arranged on the second moving plate is adjusted; after the adjustment is completed, the bottom plate is locked on the base through the locking mechanism, so that the position of the existing mould or the existing clamp which is arranged on the workbench by knocking is replaced, the adjustment efficiency is improved, and the clamp and the mould are protected.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a structural diagram of an adjustable workbench structure according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of an adjustable worktable structure provided in an embodiment of the present invention.

Fig. 3 is an exploded view of an adjustable workbench structure according to an embodiment of the present invention.

Fig. 4 is a view from the other side of fig. 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, referring to fig. 1 to 4, an adjustable worktable structure includes a base 100, a floating mechanism 200, a bottom plate 300, a first moving plate 400, and a second moving plate 500. The floating mechanism 200 is disposed at the bottom of the base 100, and the floating mechanism 200 is provided with a floating connection end 201 rotatably penetrating the base 100. The bottom plate 300 is disposed on the floating connection end 201, and the locking mechanism 600 connected to the base 100 is disposed on the bottom plate 300. The base 100 is provided with a first adjusting mechanism 700 connected to the base plate 300 for adjusting the angle of the base plate 300. The first moving plate 400 is slidably disposed on the bottom plate 300, the second moving plate 500 is slidably disposed on the first moving plate 400, and moving directions of the first moving plate 400 and the second moving plate 500 are crossed with each other. The bottom plate 300 is provided with a second adjusting mechanism 800 connected to the first moving plate 400, for adjusting the position of the first moving plate 400. The first moving plate 400 is provided with a third adjusting mechanism 900 connected to the second moving plate 500, and used for adjusting the position of the second moving plate 500, and the top surface of the second moving plate 500 is provided with an installation position. The embodiment specifically includes: a mold or a jig is fixed to the mounting position of the second moving plate 500. When the mold or jig position is adjusted, the locking mechanism 600 is released, and the floating mechanism 200 supports the bottom plate 300, thereby adjusting the rotation of the bottom plate 300 and the first and second moving

plates

400 and 500 by a certain angle by the first adjusting mechanism 700. The front and rear positions of the first moving plate 400 and the second moving plate 500 are adjusted by the second adjusting mechanism 800, and the left and right positions of the second moving plate 500 are adjusted by the third adjusting mechanism 900, so that the mold or the clamp arranged on the second moving plate 500 is adjusted. After the adjustment is completed, the bottom plate is locked on the base 100 through the locking mechanism 600, so that the existing mode that the position is adjusted by knocking a mold or a fixture arranged on a workbench is replaced, the adjustment efficiency is improved, and the fixture and the mold are protected.

Further, the sliding directions of the first moving plate 400 and the second moving plate 500 are perpendicular to each other.

Further, referring to fig. 1 to 4, the floating mechanism 200 includes a connection seat 201, a support rod 202, and a compression spring 203. The connecting seat 201 is arranged at the bottom of the base 100, the supporting rod 202 sequentially passes through the connecting seat 201 and the base 100 in a sliding manner, the bottom end of the supporting rod 202 is provided with a limiting part 204, and the top end of the supporting rod 202 is provided with a limiting supporting part 205. The compression spring 203 is sleeved at the lower end of the supporting rod 202, the upper end of the compression spring 203 is abutted against the connecting seat 201, and the lower end of the compression spring 203 is limited on the limiting part 204; the bottom plate 300 is disposed on the limit support 205. In this embodiment, produce decurrent pulling force to bracing piece 202 through compression spring 203, and then make bottom plate 300 can laminate with base 100 all the time, be to bottom plate 300 debugging, can effectively prevent bottom plate 300 secondary movement, guaranteed the precision of adjusting.

Further, referring to fig. 1 to 4, a spherical groove 101 is further provided at the top of the base 100. The bottom of bottom plate 300 downwardly extending has spherical surface boss 301, spherical surface boss 301 stretches into in the spherical recess 101, just spherical surface boss 301's sphere with the sphere laminating of spherical recess 101. In this embodiment, the bottom plate 300 and the base 100 are in spherical fit, so that the bottom plate 300 can be adjusted at any angle (universal adjustment); therefore, the vertical upward direction of the mold and the clamp can be ensured, and the positioning precision of the mold or the clamp is further increased. Also, in the present embodiment, the center position of the base plate 300 is always maintained when the vertical angle of the base plate 300 is adjusted and when the horizontal angle is adjusted.

Further, the axis of the spherical surface boss 301 coincides with the axis of the support rod 202.

Further, referring to fig. 1 to 4, the first adjusting mechanism 700 includes a first supporting block 701, a first connecting block 702, and a first adjusting screw 703. The bottom of the bottom plate 300 is provided with a first groove 302, and the first groove 302 and the floating mechanism 200 are eccentrically arranged. The first supporting block 701 is disposed on the base 100, and the upper end of the first supporting block extends into the first groove 302. The first connecting block 702 is disposed in the first groove 302, and a first screw hole 704 is disposed on the first connecting block 702. The first adjusting screw 703 passes through a first screw hole 704 to be connected with the first support block 701 through a universal joint. A first clearance hole 303 penetrating to the first groove 302 is formed in one side of the bottom plate 300, and is used for clearance adjustment of an adjusting piece of the first adjusting screw 703. In this embodiment, when the angle position of the bottom plate 300 needs to be adjusted, an adjusting member, such as a screwdriver or a special screw wrench, passes through the first clearance hole 300 and is connected with the first adjusting screw 703, so that the first adjusting screw 703 can be rotated, the bottom plate 300 is pushed or pulled to rotate through the first adjusting screw 703, thereby achieving adjustment, and the first adjusting screw 703 is connected with the first connecting block 702 in a universal joint manner, so that when the angle of the bottom plate 300 is adjusted, the interference of the first adjusting screw 703 on the bottom plate 300 is avoided. And the first adjusting screw rod 703 adopts a built-in structure, so that the whole structure is more attractive.

Still further, referring to fig. 1 to 4, the first connecting block 702 is provided with T-shaped sliding grooves in an up-down direction, and the end of the first adjusting screw 703 is provided with a ball head which is inserted into the T-shaped sliding groove, so that when the first adjusting screw 703 can rotate at any angle, the function of sliding up and down can be realized, and thus the angle adjustment of the bottom plate 300 in the vertical direction can be satisfied.

Further, referring to fig. 1 to 4, the second adjusting mechanism 800 includes a second adjusting screw and a second screw hole 401 provided at one side of the first moving plate 400. The top of the base plate 300 is provided with a first sliding groove 304 and a first T-shaped groove 305, and one end of the first T-shaped groove 305 is communicated with the first sliding groove 304. The first moving plate 400 is slidably disposed in the first sliding groove 304, the second adjusting screw is disposed in the first T-shaped groove 305, and the second adjusting screw is connected to the second screw hole 401. A second clearance hole 306 penetrating to the first T-shaped groove 305 is formed at one side of the base plate 300, and is used for clearance adjustment of an adjusting member of the second adjusting screw. In this embodiment, when the position of the first moving plate 400 needs to be adjusted, the adjusting tool passes through the second clearance hole 306 and is connected to the second adjusting screw, so that the second adjusting screw can be rotated to adjust the position of the first moving plate 400 by pushing or pulling. In this embodiment, more specifically, the countersunk portion of the second adjusting screw is limited in the transverse groove of the first T-shaped groove 305, so as to realize the concealed arrangement of the second adjusting screw, and make the overall structure of the workbench more beautiful.

Further, referring to fig. 1 to 4, the third adjusting mechanism 900 includes a second connecting block 901 and a third adjusting screw 902. The bottom of the second moving plate 500 is provided with a second sliding groove 501 slidably connected to the first moving plate 400. The top wall of the second sliding chute 501 is provided with a second groove 502 and a second T-shaped groove 503 which are recessed upwards, and one end of the second T-shaped groove 503 passes through the second groove 502. The second connecting block 901 is disposed on the first moving plate 400, and the upper end of the second connecting block extends into the second groove 502. The third adjusting screw 902 is disposed in the second T-shaped groove 503 and screwed with the second connecting block 901. A third clearance hole 504 communicated with the second T-shaped groove 503 is formed in one side of the second moving plate 500, and is used for clearance adjustment of an adjusting piece of the third adjusting screw 902. In this embodiment, when the position of the second moving plate 500 needs to be adjusted, the adjusting tool extends into the third clearance hole 504 to be connected to the third adjusting screw 902, so that the third adjusting screw 902 can be rotated, and the third adjusting screw 902 is matched with the screw hole of the second connecting block 901, so that the second moving plate 500 can be pushed or pulled to move, and the position of the second moving plate 500 can be adjusted.

Further, referring to fig. 1 to 4, the plane of the second moving plate 500 is larger than the plane of the first moving plate 400, and the second moving plate 500 covers the first moving plate 400. And the first moving plate 400 is completely received in the second sliding slot 501. In this embodiment, the second moving plate 500 completely covers the first moving plate 400, so that the overall structure is simpler and more attractive.

Further, referring to fig. 1 to 4, the adjustable workbench further includes at least two sets of oppositely disposed connecting mechanisms 110 for connecting and locking the bottom plate 300, the first moving plate 400 and the second moving plate 500. After the positions of the first moving plate 400 and the second moving plate 500 are adjusted, the bottom plate 300, the first moving plate 400 and the second moving plate 500 may be locked into an integrated structure by the connection mechanism 110. The connecting mechanism 110 includes a connecting screw 111 and a connecting slider 112. A counter bore 505 is formed in the second moving plate 500, a third sliding groove 307 is formed in the bottom of the bottom plate 300, a first waist-shaped groove 308 for observing the bottom plate 300 is formed in the top wall of the third sliding groove 307, a second waist-shaped groove 402 is formed in the first moving plate 400, the connecting slider 112 is slidably arranged in the third sliding groove 307, and the connecting screw 111 sequentially penetrates through the counter bore 505, the second waist-shaped groove 402 and the first waist-shaped groove 308 to be connected with the connecting slider 111. In this embodiment, after the position of the mold or the jig disposed on the second moving plate 500 is adjusted, the connecting screw 111 is connected to the connecting slider 112, so that the bottom plate 300, the first moving plate 400, and the second moving plate 500 are locked together. And the connecting slider 112 is arranged in the third sliding groove 307, which can effectively avoid the interference of the connecting slider 112 on the installation of the bottom plate 300, and when the angle position of the bottom plate 300 is adjusted, the connecting slider 112 can slide in the third sliding groove 307, and in the process of locking the connecting screw 111 and the connecting slider 112, the second moving plate 500 and the bottom plate 300 cause interference, so as to ensure the adjusted precision.

Further, the locking mechanisms 600 are at least two groups and are arranged oppositely; the locking mechanism 600 is a screw locking mechanism.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An adjustable workbench structure is characterized by comprising a base, a floating mechanism, a bottom plate, a first movable plate and a second movable plate; the floating mechanism is arranged at the bottom of the base and is provided with a floating connecting end which rotatably penetrates through the base, the bottom plate is arranged on the floating connecting end, and the bottom plate is provided with a locking mechanism connected with the base; the base is provided with a first adjusting mechanism connected with the bottom plate and used for adjusting the angle of the bottom plate; the first moving plate is arranged on the bottom plate in a sliding mode, the second moving plate is arranged on the first moving plate in a sliding mode, and the moving directions of the first moving plate and the second moving plate are mutually crossed; the bottom plate is provided with a second adjusting mechanism connected with the first moving plate and used for adjusting the position of the first moving plate; the first moving plate is provided with a third adjusting mechanism connected with the second moving plate and used for adjusting the position of the second moving plate, and the top surface of the second moving plate is provided with an installation position.

2. An adjustable workbench structure in accordance with claim 1, wherein: the sliding directions of the first moving plate and the second moving plate are perpendicular to each other.

3. An adjustable workbench structure in accordance with claim 1, wherein: the floating mechanism comprises a connecting seat, a supporting rod and a compression spring; the connecting seat is arranged at the bottom of the base, the supporting rod sequentially penetrates through the connecting seat and the base in a sliding manner, the bottom end of the supporting rod is provided with a limiting part, and the top end of the supporting rod is provided with a limiting supporting part; the compression spring is sleeved at the lower end of the supporting rod, the upper end of the compression spring is abutted against the connecting seat, and the lower end of the compression spring is limited on the limiting part; the bottom plate is arranged on the limiting supporting part.

4. An adjustable workbench structure in accordance with claim 3, wherein: the top of the base is also provided with a spherical groove; the bottom downwardly extending of bottom plate has spherical surface boss, spherical surface boss stretches into in the spherical recess, just spherical surface boss's sphere with the spherical surface laminating of spherical recess.

5. An adjustable workbench structure in accordance with any of claims 1 to 4, wherein: the first adjusting mechanism comprises a first supporting block, a first connecting block and a first adjusting screw rod; a first groove is formed in the bottom of the bottom plate, and the first groove and the floating mechanism are eccentrically arranged; the first supporting block is arranged on the base, and the upper end of the first supporting block extends into the first groove; the first connecting block is arranged in the first groove, and a first screw hole is formed in the first connecting block; the first adjusting screw rod penetrates through a first screw hole to be connected with the first supporting block universal joint; one side of the bottom plate is provided with a first clearance hole penetrating through the first groove, and the first clearance hole is used for clearance adjustment of an adjusting piece of the first adjusting screw rod.

6. An adjustable workbench structure in accordance with any of claims 1 to 4, wherein: the second adjusting mechanism comprises a second adjusting screw and a second screw hole arranged on one side of the first moving plate; a first sliding groove and a first T-shaped groove are formed in the top of the bottom plate, and one end of the first T-shaped groove is communicated with the first sliding groove; the first moving plate is arranged in the first sliding groove in a sliding mode, the second adjusting screw is arranged in the first T-shaped groove, and the second adjusting screw is connected with the second screw hole; and a second clearance hole penetrating through the first T-shaped groove is formed in one side of the bottom plate and is used for clearance adjustment of an adjusting piece of the second adjusting screw rod.

7. An adjustable workbench structure in accordance with any of claims 1 to 4, wherein: the third adjusting mechanism comprises a second connecting block and a third adjusting screw rod; the bottom of the second moving plate is provided with a second sliding chute in sliding connection with the first moving plate; the top wall of the second sliding chute is provided with a second groove and a second T-shaped groove which are sunken upwards, and one end of the second T-shaped groove penetrates through the second groove; the second connecting block is arranged on the first moving plate, and the upper end of the second connecting block extends into the second groove; the third adjusting screw is arranged in the second T-shaped groove and is in threaded connection with the second connecting block; and a third clearance hole communicated with the second T-shaped groove is formed in one side of the second moving plate, and is used for clearance adjustment of an adjusting piece of the third adjusting screw rod.

8. An adjustable workbench structure in accordance with claim 7, wherein: the plane of the second moving plate is larger than that of the first moving plate, and the second moving plate covers the first moving plate; the first moving plate is accommodated in the second chute.

9. An adjustable workbench structure in accordance with claim 1, wherein: the connecting mechanism is used for connecting and locking the bottom plate, the first moving plate and the second moving plate; the connecting mechanism comprises a connecting screw rod and a connecting slide block; the improved structure is characterized in that a counter bore is formed in the second movable plate, a third sliding groove is formed in the bottom of the bottom plate, a top wall of the third sliding groove is provided with an observation first waist-shaped groove of the bottom plate, a second waist-shaped groove is formed in the first movable plate, the connecting slide block is slidably arranged in the third sliding groove, and the connecting screw rod sequentially penetrates through the counter bore, the second waist-shaped groove and the first waist-shaped groove and the connecting slide block are connected.

10. An adjustable workbench structure in accordance with claim 1, wherein: the locking mechanisms are at least two groups and are oppositely arranged; the locking mechanism is a screw locking mechanism.