Workbench connector with self-adaptive thickness

Abstract

The utility model belongs to the technical field of woodworking tools, and particularly relates to a thickness self-adaptive workbench connector. The device comprises a supporting cylinder, a driving screw rod, a longitudinal lifting component and a transverse telescopic component, a longitudinal accommodating groove is formed in the supporting cylinder; the driving screw rod is arranged in the longitudinal accommodating groove; the longitudinal lifting component is arranged in the longitudinal accommodating groove and is in threaded transmission connection with the driving screw rod; the transverse telescopic component is movably connected to the longitudinal lifting component. The driving screw rod can drive the longitudinal lifting component and the transverse telescopic component to synchronously do lifting motion; the transverse telescopic component can stretch out or retract back while doing lifting motion. According to the utility model, the workpiece fixing effect can be improved through a radial locking and axial locking scheme.

Description

Technical Field

[0001] This utility model belongs to the field of woodworking tool technology, specifically relating to a thickness-adaptive workbench connector. Background Technology

[0002] In woodworking, the workpiece, such as a board, needs to be fixed onto the workbench first. In existing technology, this is generally achieved by using positioning holes (commonly known as "dog holes") on the workbench, with supports within these holes to secure the workpiece to the workbench. Please refer to... Figure 8 The doghole support typically includes a support member 10, a clamping member 20, and several expansion members 30 and intermediate members 40. The support member 10 includes a support base 110 and an intermediate screw 120. The clamping member 20 is connected to the intermediate screw 120 of the support member 10 through its own threaded hole. The expansion members 30 and intermediate members 40 are sequentially spaced between the clamping member 20 and the support base 110 of the support member 10. In use, the doghole support is first inserted into both the doghole on the workbench and the fixing hole on the workpiece. Then, the clamping member 20 is rotated to compress the expansion members 30 and intermediate members 40, causing the expansion members 30 to elastically deform radially to achieve a connection and fixation.

[0003] This workpiece fixing method has the following technical problems: the installation and fixing of the workpiece is achieved by using the radial expansion force of the expansion component, which results in insufficient fastening force; furthermore, the existing workpiece fixing method is a radial locking scheme, and the support inside the hole cannot apply a fastening force to the workpiece from the axial direction. Utility Model Content

[0004] In view of this, the present invention provides a thickness-adaptive worktable connector to solve all or part of the technical problems described in the background section of the present invention.

[0005] The innovative ideas of this utility model are as follows: 1. A drive screw is set inside the support cylinder, and the locking component is driven to move up and down through the threaded transmission to press the workpiece onto the worktable or release the workpiece on the worktable; 2. An inclined drive structure is set inside the support cylinder, which extends out of the support cylinder to clamp the workpiece when the locking component moves upward, and retracts into the support cylinder when the locking component moves downward so as not to hinder the insertion or removal of the worktable connector through the dog hole.

[0006] The solution proposed by this utility model to solve its technical problem is as follows:

[0007] A thickness-adaptive worktable connector, characterized in that it includes a support cylinder, a drive screw, a longitudinal lifting component, and a transverse telescopic component; the support cylinder is provided with a longitudinal receiving groove; the drive screw is disposed in the longitudinal receiving groove; the longitudinal lifting component is disposed in the longitudinal receiving groove and is threadedly connected to the drive screw; the transverse telescopic component is movably connected to the longitudinal lifting component.

[0008] The drive screw can drive the longitudinal lifting component to perform lifting and lowering movements; the lateral telescopic component can perform synchronous lifting and lowering movements with the longitudinal lifting component; the lateral telescopic component can also extend laterally into the longitudinal receiving slot when performing longitudinal lifting movements.

[0009] Furthermore, a driving ramp is provided in the longitudinal receiving groove; a driving threaded hole and a telescopic groove are provided on the longitudinal lifting component; a screw clearance position and a driving engagement ramp are provided on the transverse telescopic component; the longitudinal lifting component is connected to the driving screw through the driving threaded hole; the transverse telescopic component is located in the telescopic groove and the driving screw passes through the screw clearance position; the driving engagement ramp can cooperate with the driving ramp to generate a transverse pushing force.

[0010] Furthermore, a longitudinal support plane is also provided in the longitudinal receiving groove; the longitudinal support plane is connected to the driving inclined plane and is located at the upper part of the driving inclined plane; a longitudinal support mating plane is also provided on the transverse telescopic component; the longitudinal support mating plane is connected to the driving mating inclined plane and is located at the lower part of the driving mating inclined plane.

[0011] Rotating the drive screw causes the longitudinal lifting component to move up and down together with the transverse telescopic component. During the upward movement, when the drive engagement slope of the transverse telescopic component interacts with the drive slope in the longitudinal receiving groove, the drive slope generates a transverse pushing force on the drive engagement slope, allowing the transverse telescopic component to extend laterally out of the longitudinal receiving groove. After the drive engagement slope moves upward and leaves the drive slope, the longitudinal support plane begins to interact with the longitudinal support engagement plane to generate a supporting force, preventing the transverse telescopic component from retracting into the longitudinal receiving groove.

[0012] Furthermore, a support drive platform is provided inside the receiving groove; the support drive platform includes an inclined section and a longitudinal section; the drive inclined surface is provided on the inclined section, and the longitudinal support plane is provided on the longitudinal section.

[0013] Furthermore, the thickness-adaptive worktable connector also includes an elastic component; the two ends of the elastic component abut against the lateral telescopic component and the longitudinal lifting component, respectively. Preferably, the elastic component is a spring and / or a sheet spring.

[0014] When the lateral telescopic component extends laterally, it compresses the elastic component, thereby providing an elastic return force to the lateral telescopic component; when the longitudinal lifting component and the lateral telescopic component move synchronously downward, after the longitudinal support mating plane leaves the longitudinal support plane, the lateral telescopic component loses its support force and can automatically retract into the telescopic groove under the action of the elastic return force.

[0015] Furthermore, the lateral telescopic component is also provided with an inner end receiving groove; the longitudinal lifting component is also provided with an outer end receiving groove; and the two ends of the elastic component are respectively provided in the inner end receiving groove and the outer end receiving groove.

[0016] Furthermore, the expansion groove is a longitudinal limiting groove; the mating part of the transverse expansion component matches the expansion groove; the transverse expansion component is set in the expansion groove and can only expand and contract laterally, and cannot disengage from the expansion groove longitudinally. Preferably, the expansion groove is a dovetail groove.

[0017] Furthermore, the upper and lower ends of the receiving groove are respectively provided with screw holes; both ends of the drive screw are set in the screw holes; the upper part of the drive screw is provided with an upper nut, and the lower part of the drive screw is provided with a lower nut.

[0018] Furthermore, an annular groove is provided on the upper part of the support cylinder, and a locking rubber ring is installed inside the annular groove. The locking rubber ring is used to increase the friction between the support cylinder and the inner wall of the dog hole to increase the stability of the connection.

[0019] Furthermore, an anti-wear rubber ring is provided between the bottom of the lower nut and the support cylinder; the anti-wear rubber ring is used to reduce the hard friction between the lower nut and the support cylinder to extend the service life of the connector.

[0020] Furthermore, a limiting edge is provided at the top of the support cylinder. The limiting edge is used to cooperate with the longitudinal lifting component and the lateral telescopic component to fix the workpiece to the woodworking table axially. Preferably, the limiting edge has a tapered surface structure; during the process of locking the workpiece, the tapered surface structure of the limiting edge can generate both axial locking force and radial locking force simultaneously, and the bidirectional locking force helps to increase the stability of the connection.

[0021] Beneficial technical effects:

[0022] The thickness-adaptive worktable connector provided by this utility model can lock the workpiece onto the worktable through the longitudinal lifting motion of the lifting component and the lateral telescopic motion of the telescopic component. This allows for axial clamping force to be applied to the workpiece, overcoming the shortcomings of existing radial locking methods that rely on the expansion force of rubber rings, thus improving the stability of workpiece installation and fixation. Furthermore, because the longitudinal lifting motion has a certain stroke, it can adapt well to workpieces of different thicknesses, further enhancing the connector's applicability.

[0023] The technical solution and technical effects of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 : Schematic diagram showing the longitudinal lifting component and the lateral telescopic component at the bottom of the receiving slot;

[0025] Figure 2 : Schematic diagram showing the longitudinal lifting component and the lateral telescopic component located at the top of the receiving slot;

[0026] Figure 3Schematic diagram of the workpiece thickness adaptive locking principle;

[0027] Figure 4 : First-person perspective exploded view of the thickness adaptive stage connector;

[0028] Figure 5 : Second-view exploded view of the thickness adaptive stage connector;

[0029] Figure 6 : Exploded view of the connection relationship between the longitudinal lifting component, the lateral telescopic component, and the elastic component;

[0030] Figure 7 Assembly drawing showing the connection relationships between the longitudinal lifting components, the lateral telescopic components, and the elastic components;

[0031] Figure 8 : Schematic diagram of the existing support structure inside the dog hole.

[0032] Icon description:

[0033] 1-Support cylinder;

[0034] 11-Longitudinal receiving groove, 12-Driving inclined surface, 13-Longitudinal support plane, 14-Support driving platform, 15-Screw hole, 16-Annular groove, 17-Limiting edge;

[0035] 141 - Inclined section, 142 - Longitudinal section;

[0036] 2-Drive screw; 21-Upper nut; 22-Lower nut;

[0037] 3-Longitudinal lifting components;

[0038] 31-Drive threaded hole, 32-Expansion groove, 321-Horizontal groove bottom, 33-Outer end receiving groove, 34-Elastic groove, 341-Vertical groove bottom;

[0039] 4- Lateral telescopic components;

[0040] 41-Screw clearance position, 42-Drive mating inclined surface, 43-Longitudinal support mating plane, 44-Inner end receiving groove, 45-Horizontal part, 46-Inclined part, 47-Vertical part;

[0041] 5-Elastic components;

[0042] 6- Locking rubber ring;

[0043] 7-Workbench;

[0044] 8-Workpiece;

[0045] 9- Anti-wear rubber ring;

[0046] 10-Support component, 20-Clamping component, 30-Expansion component, 40-Intermediate component; 110-Support base, 120-Intermediate screw. Detailed Implementation

[0047] Directional Explanation: 1. In this utility model, "longitudinal" refers to the vertical direction of the workbench connector in normal use, and "lateral" refers to the direction perpendicular to the longitudinal direction. 2. In this utility model, "upper part," "top," or "above" refers to the upper part, top, or above of the workbench connector in normal use; the opposite direction is "lower part," "bottom," or "below." 3. In this utility model, "outward extension" refers to movement to the outside of the longitudinal receiving groove, that is, movement or extension in a direction perpendicular to the longitudinal telescopic groove; the opposite direction is "inward retraction" or "movement into the interior of the longitudinal receiving groove."

[0048] Please see Figures 1 to 7 The thickness adaptive worktable connector disclosed in this utility model includes a support cylinder 1, a drive screw 2, a longitudinal lifting component 3, a transverse telescopic component 4, and an elastic component 5.

[0049] The support cylinder 1 has a cylindrical structure and an internal longitudinal receiving groove 11 (i.e., the groove extends longitudinally). Both the top and bottom of the support cylinder 1 have screw holes 15, which connect to the longitudinal receiving groove 11. The longitudinal receiving groove 11 opens to one side of the support cylinder 1. The top of the support cylinder 1 has a limiting edge 17 with a tapered surface structure.

[0050] The drive screw 2 has an integrally formed upper nut 21 at its top and a lower nut 22 at its bottom. The drive screw 2 passes through the screw holes 15 at both ends of the longitudinal receiving groove 11 and is confined within the longitudinal receiving groove 11 by the upper nut 21 and the lower nut 22. The drive screw 2 can rotate freely in a clockwise or counterclockwise direction but cannot detach from the support cylinder 1.

[0051] The longitudinal lifting component 3 is provided with a drive threaded hole 31, a telescopic groove 32, an outer end receiving groove 33, and an elastic groove 34; the drive threaded hole 31 is used to drive the drive screw 2, the telescopic groove 32 is used to assemble the lateral telescopic component 4 and provide lateral telescopic movement space, the outer end receiving groove 33 is used to assemble the outer end of the elastic component 5, and the elastic groove 34 is used to accommodate the elastic component 5.

[0052] The longitudinal lifting component 3 has a rectangular structure. The telescopic groove 32 is set on the top of the longitudinal lifting component 3 and extends laterally through the rectangular structure. The drive threaded hole 31 is set on the horizontal groove 321 of the telescopic groove 32 and extends longitudinally through the longitudinal lifting component 3. The axis of the drive threaded hole 31 is perpendicular to the horizontal groove bottom 321 of the telescopic groove 32.

[0053] The longitudinal lifting component 3 has a spring groove 34 on one side inside. The spring groove 34 extends laterally and may or may not be connected to the telescopic groove 32 (in this embodiment, it is connected to the telescopic groove 32). The vertical groove bottom 341 of the spring groove 34 is parallel to the axis of the drive threaded hole 31 and is perpendicular to the horizontal groove bottom 321 of the telescopic groove 32. The outer end receiving groove 33 is provided on the vertical groove bottom 341 of the spring groove 34.

[0054] The longitudinal lifting component 3 is disposed in the longitudinal receiving groove 11 and is connected to the drive screw 2 through the drive threaded hole 31.

[0055] The elastic component 5 is disposed in the elastic groove 34, and one end of the elastic component is disposed in the outer end receiving groove 33.

[0056] A support drive platform 14 is provided in the longitudinal receiving groove 11 of the support cylinder 1; the support drive platform 14 has a ribbed structure and extends along the cylinder direction of the support cylinder 1; the support drive platform 14 includes an integrally formed inclined section 141 and a longitudinal section 142; a drive inclined surface 12 is provided on the inclined section 141, and a longitudinal support plane 13 is provided on the longitudinal section 142; the longitudinal support plane 13 is smoothly connected to the drive inclined surface 12 and is located on the upper part of the drive inclined surface 12.

[0057] The transverse telescopic component 4 is provided with a screw clearance 41, a drive engagement ramp 42, a longitudinal support engagement plane 43, and an inner end receiving groove 44. The screw clearance 41 is specifically a long strip-shaped through hole (in this embodiment, a waist-shaped hole) that runs longitudinally through the transverse telescopic component 4. It is used to accommodate the drive screw 2 and to prevent the drive screw 4 from moving during the telescopic movement of the transverse telescopic component 4. The drive engagement ramp 42 is used to engage with the drive ramp 12 inside the support cylinder 1 to generate a transverse pushing force. The longitudinal support engagement plane 43 is used to engage with the longitudinal support plane 13 inside the support cylinder 1 to generate a maintaining force in the extended state. The longitudinal support engagement plane 43 is connected to the drive engagement ramp 42 and is located at the lower part of the drive engagement ramp 42. The inner end receiving groove 44 is used to assemble the inner end of the elastic component.

[0058] The transverse telescopic component 4 includes a horizontal part 45, which feeds material inward to form an inclined part 46, and the inclined part 46 feeds material downward in the longitudinal direction to form a vertical part 46; a screw clearance 41 is provided on the horizontal part 45 and passes through the horizontal part 45; a drive mating inclined surface 42 is provided on the inclined part 46; a longitudinal support mating plane 43 is provided on the vertical part 46; and an inner end receiving groove 44 is provided on the vertical part 46 and extends laterally.

[0059] The telescopic groove 32 on the longitudinal lifting component 3 is a longitudinal limiting groove, and the mating part of the transverse telescopic component 4 matches the structure of the longitudinal limiting groove. The transverse telescopic component 4 is set in the telescopic groove 32 and can only extend and retract laterally, and cannot disengage from the telescopic groove 32 longitudinally. The longitudinal limiting groove can be a groove structure with a narrow top and a wide bottom, such as a dovetail groove, so that the transverse telescopic component 4 can only slide laterally, but cannot disengage from the longitudinal lifting component 3 longitudinally.

[0060] The lateral telescopic component 4 is movably connected to the telescopic groove 32 on the longitudinal lifting component 3, and the drive screw 2 passes through the screw clearance 41; the inner end of the elastic component 5 is set in the inner end receiving groove 44; the drive mating inclined surface 42 and the drive inclined surface 12 in the support cylinder 1 are in contact with each other (in the initial state when the workpiece is not pressed).

[0061] Implementation principle and effect description:

[0062] The rotating drive screw 2 causes the longitudinal lifting component 3 and the lateral telescopic component 4 to rise simultaneously along the longitudinal direction;

[0063] The driving inclined plane 12 generates a lateral pushing force on the driving mating inclined plane 42, pushing out the lateral telescopic component 4, while gradually compressing the elastic component 5.

[0064] The lateral telescopic component 4 gradually extends laterally out of the telescopic groove 32 and the longitudinal receiving groove 11 until the driving engagement inclined surface 42 leaves the driving inclined surface 12. At this time, the extension action is completed, the elastic component 5 is in a compressed state, and the lateral telescopic component 4 is in an extended state.

[0065] The longitudinal support mating plane 43 begins to contact and engage with the longitudinal support plane 13 inside the support cylinder 1, and the longitudinal support plane 13 continuously provides a holding force for the transverse telescopic component 4.

[0066] The longitudinal lifting component 3 drives the transverse telescopic component 4 to continue to rise longitudinally until it contacts the worktable or workpiece and presses or clamps the workpiece.

[0067] Disassemble the workbench connector after completing the woodworking work;

[0068] The reverse rotation of the drive screw 2 causes the longitudinal lifting component 3 and the transverse telescopic component 4 to descend simultaneously along the longitudinal direction, at which point the workpiece is released.

[0069] When the longitudinal support mating plane 43 leaves the longitudinal support plane 13 inside the support cylinder 1, the driving mating inclined surface 42 begins to contact and engage with the driving inclined surface 12.

[0070] After losing the lateral holding force of the longitudinal support plane 13, the lateral telescopic component 4 gradually returns to its initial state for standby under the elastic restoring force of the elastic component 5 (that is, it automatically retracts into the telescopic groove 32).

[0071] Specifically: When locking the workpiece, the limiting edge 17 on the support cylinder 1 can generate axial locking force and radial locking force at the same time. Combined with the radial locking force from the transverse telescopic component 4, the workpiece can be firmly locked onto the worktable. Thus, not only can axial locking force be applied to the workpiece, but also the workpiece can be fixed and installed better by adopting a two-way locking scheme of axial and radial through the radial locking force of the limiting edge 17.

[0072] In a modified embodiment of this utility model, an annular groove 16 is further provided on the upper part of the support cylinder 1, and a locking rubber ring 6 is provided in the annular groove 16; the locking rubber ring 6 is used to increase the friction between the support cylinder 1 and the inner wall of the dog hole to increase the stability of the connection.

[0073] In a modified embodiment of this utility model, an anti-wear rubber ring 9 is also provided between the bottom of the lower nut 22 and the support cylinder 1; the anti-wear rubber ring 9 is used to reduce the hard friction between the lower nut 22 and the support cylinder 1 to extend the service life of the connector.

[0074] In a variation of this invention, a technical solution excluding the elastic component 5 may also be adopted. In an embodiment excluding the elastic component 5, the lifting and lowering movements of the longitudinal lifting component 3 and the transverse telescopic component 4, as well as the extension movement of the transverse telescopic component 4, are based on the same principle; the only difference lies in the retraction movement of the transverse telescopic component 4.

[0075] Assuming the workbench connector of this utility model is in the state of pressing the workpiece, that is, the longitudinal lifting component 3 and the transverse telescopic component 4 are in the stage where the supporting mating plane 4 and the longitudinal supporting plane 13 are mutually engaged; the reverse rotation of the drive screw 2 causes the longitudinal lifting component 3 and the transverse telescopic component 4 to descend until the longitudinal lifting component 3 and the transverse telescopic component 4 return to the bottom of the longitudinal receiving groove 11.

[0076] When the longitudinal support mating plane 43 leaves the longitudinal support plane 13, since there is no elastic component 5 to provide elastic restoring force, the transverse telescopic component 4 cannot automatically retract into the telescopic groove 32; instead, it is necessary to manually press the transverse telescopic component 4 into the telescopic groove 32. Although manual intervention is required in this embodiment, it is still possible to apply locking force from the axial direction and achieve a two-way locking scheme of radial and axial locking through the mutual cooperation of the limiting edge 17.

[0077] The technical solution and technical effects of this utility model have been described in detail above with reference to the accompanying drawings and specific embodiments. It should be noted that those skilled in the art can develop other implementation methods based on this. Any simple modifications and equivalent substitutions that do not depart from the innovative concept of this utility model are covered by this utility model and fall within the protection scope of this patent.

Claims

1. A thickness-adaptive stage connector, characterized in that: Includes a support cylinder (1), a drive screw (2), a longitudinal lifting component (3), and a lateral telescopic component (4); The support cylinder (1) is provided with a longitudinal receiving groove (11); The drive screw (2) is disposed in the longitudinal receiving groove (11); The longitudinal lifting component (3) is disposed in the longitudinal receiving groove (11) and is threadedly connected to the drive screw (2); The lateral telescopic component (4) is movably connected to the longitudinal lifting component (3).

2. The thickness-adaptive stage connector according to claim 1, characterized in that: The receiving groove (11) is also provided with a driving inclined surface (12); The longitudinal lifting component (3) is provided with a drive threaded hole (31) and a telescopic groove (32); The transverse telescopic component (4) is provided with a screw clearance position (41) and a drive engagement inclined surface (42). The longitudinal lifting component (3) is connected to the driving screw (2) through the driving threaded hole (31). The lateral telescopic component (4) is disposed in the telescopic groove (32) and the drive screw (2) passes through the screw clearance (41).

3. The thickness-adaptive stage connector according to claim 2, characterized in that: The receiving groove (11) is also provided with a longitudinal support plane (13); The longitudinal support plane (13) is connected to the driving ramp (12) and is located on the upper part of the driving ramp (12); The transverse telescopic component (4) is also provided with a longitudinal support mating plane (43). The longitudinal support mating plane (43) is connected to the driving mating ramp (42) and is located at the lower part of the driving mating ramp (42).

4. The thickness-adaptive stage connector according to claim 3, characterized in that: A support drive platform (14) is provided inside the receiving groove (11). The support drive platform (14) includes an inclined section (141) and a longitudinal section (142). The driving inclined plane (12) is disposed on the inclined section (141), and the longitudinal support plane (13) is disposed on the longitudinal section (142).

5. The thickness-adaptive stage connector according to claim 2, characterized in that: The thickness-adaptive stage connector also includes an elastic component (5); The two ends of the elastic component (5) abut against the transverse telescopic component (4) and the longitudinal lifting component (3), respectively; When the lateral telescopic member (4) extends laterally, it compresses the elastic member (5), thereby providing an elastic return force to the lateral telescopic member (4).

6. The thickness-adaptive stage connector according to claim 5, characterized in that: The transverse telescopic component (4) is also provided with an inner end receiving groove (44). The longitudinal lifting component (3) is also provided with an outer end receiving groove (33); The two ends of the elastic component (5) are respectively disposed in the inner end receiving groove (44) and the outer end receiving groove (33).

7. The thickness-adaptive stage connector according to claim 2, characterized in that: The expansion groove (32) is a longitudinal limiting groove; The mating part of the lateral telescopic component (4) matches the telescopic groove (32); The lateral telescopic component (4) is disposed in the telescopic groove (32) and can only telescopically extend and retract, but cannot detach from the telescopic groove (32) longitudinally.

8. The thickness-adaptive stage connector according to claim 1, characterized in that: The upper and lower ends of the receiving groove (11) are respectively provided with screw holes (15); The two ends of the drive screw (2) are disposed in the screw hole (15); The upper part of the drive screw (2) is provided with an upper nut (21), and the lower part of the drive screw (2) is provided with a lower nut (22).

9. The thickness-adaptive stage connector according to claim 1, characterized in that: The upper part of the support cylinder (1) is provided with an annular groove (16), and a locking rubber ring (6) is provided in the annular groove (16).

10. The thickness-adaptive stage connector according to claim 1, characterized in that: The top of the support cylinder (1) is provided with a limiting edge (17).

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