Guide rail width adjustment device

Abstract

The utility model discloses a guide rail width adjustment device, which relates to the technical field of mechanical tools. The technical key points are: a mounting seat is provided on the bottom plate, an adjustment mechanism is provided on the mounting seat, a groove is provided on the side wall between two adjacent slide rails, an adjustment rod is placed in the groove, and the adjustment rod is driven to rotate by the adjustment mechanism, thereby achieving the function of adjusting the rail width. The utility model has the advantages that the slider is driven to slide by the gear, which is actually the gear driving the rack, and the original linear motion is converted into a vertical linear motion by the inclined groove on the rack, the structure is simple to operate, and the width adjustment is relatively stable.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, in particular to a guide track width adjustment device. Background Art

[0002] There are two main existing methods for adjusting the track: one is to use a knob to expand a ring with a notch inside to adjust the track width.

[0003] In addition, there is another method of achieving adjustment by pushing the structure with the inclined slot to drive the connecting rod in the track to rotate. For example, Chinese patent publication number CN104511949B discloses a handheld machine tool guide device that achieves the function of width adjustment by setting a plurality of units.

[0004] The above-mentioned existing technical solutions have the following defects: the first solution can only realize single-track adjustment, and the screws will loosen if they are vibrated, resulting in inaccurate track width, while the operation of the second solution is not simple enough and involves more matching parts. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a guide rail width adjustment device, which has the advantages of simple operation and multiple conversions of movement directions to ensure the stability of adjustment.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0007] A guide rail width adjustment device comprises a base plate, a mounting seat is provided on the base plate, the mounting seat is fixedly connected to the base plate, an adjustment mechanism is provided on the mounting seat, the bottom surface of the base plate is provided with slide rails parallel to each other, a groove is provided on the side wall between two adjacent slide rails, the groove is located below the mounting seat, an adjustment rod is placed in the groove, and a rotating screw is also provided, the rotating screw passes through the adjusting rod and the through section of the rotating screw is placed in the groove, and the rotating screw is connected to the adjustment mechanism.

[0008] In a preferred example, the utility model can be further configured as follows: the mounting seat is provided with a mounting groove, a positioning shaft is provided in the mounting groove, and the adjustment mechanism is installed on the positioning shaft.

[0009] The adjustment mechanism includes a positioning screw, a knob, a cover plate and a slider connected in sequence from top to bottom. The slider is provided with an oblique groove, which is not parallel to the slide rail. The slider can slide in the installation groove, and the rotating screw is inserted in the oblique groove.

[0010] In a preferred example, the utility model can be further configured as follows: a gear is fixedly connected to the bottom of the knob, a rack is provided on one side of the slider, and the gear is meshed with the rack.

[0011] In a preferred example, the present invention can be further configured as follows: the cover plate is snap-fitted and matched with the mounting groove.

[0012] In a preferred example, the present invention can be further configured as follows: the positioning screw is inserted into the positioning shaft, and the two are threadedly connected.

[0013] In summary, the utility model includes at least one of the following beneficial technical effects:

[0014] The slider is driven to slide by setting a knob and a gear set on the lower side of the knob, and the original linear motion is converted into vertical linear motion through the inclined groove on the rack. This structure is easy to operate and the width adjustment is relatively stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded schematic diagram of the overall structure of this technical solution.

[0016] Figure numerals: 1. Base plate; 2. Mounting seat; 3. Adjustment mechanism; 31. Positioning screw; 32. Knob; 33. Cover plate; 34. Slider; 4. Slide rail; 5. Adjustment rod; 6. Rotating screw; 7. Mounting slot; 8. Positioning shaft; 9. Bevel slot; 10. Gear; 11. Rack. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1 As shown, a guide rail width adjustment device disclosed in the present technical solution includes a base plate 1, a mounting seat 2 is provided on the base plate 1, and the mounting seat 2 is fixedly connected to the base plate 1. The fixed connection here means that there will be no relative displacement between the two, so it is not limited to a fixed connection, and detachable connection or integrated setting, etc. can be used here.

[0019] The mounting seat 2 is provided with an adjustment mechanism 3, and the bottom surface of the base plate 1 is provided with mutually parallel slide rails 4, and a groove is provided on the side wall between two adjacent slide rails 4, which is not shown in the figure. The groove is located below the mounting seat 2, and an adjustment rod 5 is placed in the groove. By rotating the adjustment rod 5 arranged in the groove, the side wall of the slide rail 4 can be pressed tightly, thereby adjusting the width of the slide rail 4.

[0020] A rotating screw 6 is also provided, the rotating screw 6 penetrates the adjusting rod 5 and the penetration section of the rotating screw 6 is placed in the groove, and the rotating screw 6 is connected to the adjusting mechanism 3. The rotating screw 6 provided here fixes the position of the adjusting rod 5, and at the same time, after the rotating screw 6 limits the adjusting rod 5, it does not affect the rotation of the adjusting rod 5. When the adjusting rod 5 is installed by the rotating screw 6, the lowest point of the adjusting rod 5 is higher than the bottom surface of the bottom plate 1.

[0021] The mounting seat 2 is provided with a mounting groove 7, a positioning shaft 8 is provided in the mounting groove 7, and the adjustment mechanism 3 is installed on the positioning shaft 8.

[0022] The adjustment mechanism 3 includes a positioning screw 31, a knob 32, a cover plate 33 and a slider 34 connected in sequence from top to bottom. The slider 34 is provided with an oblique groove 9, which is not parallel to the slide rail 4. The slider 34 can slide in the mounting groove 7, and the rotating screw 6 is inserted in the oblique groove 9. The cover plate 33 is engaged with the mounting groove 7 to limit the angle change of the slider 34 and ensure that the slider 34 moves in the mounting groove 7.

[0023] The bottom of the knob 32 is fixedly connected with a gear 10, and a rack 11 is provided on one side of the slider 34, and the gear 10 and the rack 11 are meshed. The gear 10 drives the rack 11 to slide, and then under the limiting action of the rotating screw 6, the slider 34 rotates, thereby tightening the side wall of the slide rail 4 to achieve the purpose of adjusting the track width.

[0024] The positioning screw 31 is inserted into the positioning shaft 8, and the two are threadedly connected. The positioning screw 31 is used to fix other components of the adjustment mechanism 3 to ensure the compactness of the device.

[0025] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A guide rail width adjustment device, comprising a base plate (1), characterized in that: The base plate (1) is provided with a mounting seat (2), the mounting seat (2) is fixedly connected to the base plate (1), the mounting seat (2) is provided with an adjustment mechanism (3), the bottom surface of the base plate (1) is provided with slide rails (4) parallel to each other, a groove is provided on the side wall between two adjacent slide rails (4), the groove is located below the mounting seat (2), an adjustment rod (5) is placed in the groove, and a rotating screw (6) is also provided, the rotating screw (6) passes through the adjusting rod (5) and the through section of the rotating screw (6) is placed in the groove, and the rotating screw (6) is connected to the adjustment mechanism (3).

2. A guide rail width adjustment device according to claim 1, characterized in that: The mounting seat (2) is provided with a mounting groove (7), a positioning shaft (8) is provided in the mounting groove (7), and the adjustment mechanism (3) is installed on the positioning shaft (8). The adjustment mechanism (3) comprises a positioning screw (31), a knob (32), a cover plate (33) and a slider (34) which are connected in sequence from top to bottom. The slider (34) is provided with an inclined groove (9), and the inclined groove (9) is not parallel to the slide rail (4). The slider (34) can slide in the installation groove (7), and the rotating screw (6) is inserted in the inclined groove (9).

3. A guide rail width adjustment device according to claim 2, characterized in that: A gear (10) is fixedly connected to the bottom of the knob (32), a rack (11) is provided on one side of the slider (34), and the gear (10) and the rack (11) are meshed.

4. A guide rail width adjustment device according to claim 2, characterized in that: The cover plate (33) is snap-fitted and matched with the mounting groove (7).

5. The guide rail width adjustment device according to claim 2, characterized in that: The positioning screw (31) is inserted into the positioning shaft (8), and the two are threadedly connected.

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