A bar clamping device for a circular saw

Abstract

The utility model discloses a bar clamping device of circular sawing machine, including bottom plate, positioning hole, limit support, limit support screw hole, compression bolt, rear pressure block, upper connecting plate, long hole, connecting plate fixed screw, adjusting stud, gasket, nut, upper pressure block. Compared with prior art, the utility model sets up multi -point clamping structure, can better clamping bar material when the bar material surface is not smooth or the diameter is not equal, avoids its sliding or rotating when cutting and leads to the influence cutting effect.

Description

Technical Field

[0001] This utility model relates to the field of circular saw technology, specifically a circular saw bar clamping device. Background Technology

[0002] Circular saws require clamping the workpiece during cutting, and the workpiece needs to be held in place both before and after cutting. Existing circular saws require limiters when cutting bar stock to prevent rolling during cutting and maintain cutting quality. Common bar stock clamping mechanisms typically clamp the bar stock directly from both sides, but this is inconvenient when the bar stock surface is uneven or the diameter is unequal, as slippage or rotation can easily occur during cutting. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model discloses a bar clamping device for a circular saw, including a base plate, positioning holes, limit frames, limit frame screw holes, clamping bolts, rear pressure blocks, an upper connecting plate, elongated holes, connecting plate fixing screws, adjusting studs, washers, nuts, and an upper pressure block; the base plate has positioning holes at its four corners, and a limit frame is installed on each of the left and right sides of its upper side; the limit frame is U-shaped, with connecting screw holes on the front and rear edges of its upper side, and two limit frame screw holes in the center; the clamping bolt passes through the center of the rear side and the rear pressure block is installed at its rear end; both ends of the upper connecting plate are installed on the limit frames, and connecting plate fixing screws are screwed into the connecting screw holes through the upper connecting plate; several elongated holes are evenly spaced on the upper connecting plate; the adjusting stud passes through the elongated holes and is fitted with washers and nuts on both the upper and lower sides for locking and fixing; the upper pressure block is installed at the lower end of the adjusting stud.

[0004] As a preferred technical solution of this utility model, the upper limit bracket screw hole of the limiting bracket is located in the center and the other is located on the front side, both inside the elongated hole.

[0005] As a preferred technical solution of this utility model, the edge of the upper connecting plate is flush with the limiting frame, and the two ends of the elongated hole are tangent to the inner side of the limiting frame.

[0006] As a preferred embodiment of this utility model, the clamping bolt is threadedly connected to the limiting frame, and a locking nut is fitted on it.

[0007] As a preferred embodiment of this utility model, both the rear pressure block and the upper pressure block are made of rubber and are circular in shape.

[0008] As a preferred embodiment of this utility model, the length of the adjusting stud is equal to the height of the limiting bracket, and its diameter is equal to the width of the elongated hole.

[0009] The beneficial effects of this utility model are: This utility model is equipped with a multi-point clamping structure, which can better clamp the bar material when the surface is not smooth or the diameter is not uniform, and avoid the bar material from sliding or rotating during cutting, which would affect the cutting effect. Attached Figure Description

[0010] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0011] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0012] Figure 2 This is the front view of the present utility model;

[0013] Figure 3 This is a top view of the present invention;

[0014] In the diagram: 1. Base plate; 2. Positioning hole; 3. Limiting bracket; 4. Limiting bracket screw hole; 5. Clamping bolt; 6. Rear pressure block; 7. Upper connecting plate; 8. Long hole; 9. Connecting plate fixing screw; 10. Adjusting stud; 11. Washer; 12. Nut; 13. Upper pressure block. Detailed Implementation

[0015] Example 1

[0016] like Figures 1 to 3 As shown, this utility model discloses a bar clamping device for a circular saw, including a base plate 1, positioning holes 2, limiting frames 3, limiting frame screw holes 4, clamping bolts 5, rear pressure blocks 6, upper connecting plate 7, elongated holes 8, connecting plate fixing screws 9, adjusting studs 10, washers 11, nuts 12, and upper pressure blocks 13; the base plate 1 has positioning holes 2 at its four corners, and a limiting frame 3 is installed on each of the left and right sides of its upper side; the limiting frame 3 is U-shaped, and its upper side has connecting bolts on the front and rear edges. The upper connecting plate 7 has two limit bracket screw holes 4 in the center; the clamping bolt 5 passes through the center of the rear side and is equipped with a rear pressure block 6 at its rear end; both ends of the upper connecting plate 7 are installed on the limit bracket 3, and the connecting plate fixing screw 9 passes through the upper connecting plate 7 and is screwed into the connecting screw hole; several elongated holes 8 are evenly spaced on the upper connecting plate 7; the adjusting stud 10 passes through the elongated holes 8 and is equipped with washers 11 and nuts 12 on both the upper and lower sides for locking and fixing; the upper pressure block 13 is installed at the lower end of the adjusting stud 10.

[0017] The working principle of this utility model is as follows: When using this utility model, the base plate is fixed next to the circular saw, and the bar is passed laterally through the limiting frame 3. The clamping bolt 5 is rotated according to the bar size, and the rear clamping block 6 clamps the bar from the rear. Then, an adjusting bolt can be selectively installed in the appropriate position of the elongated hole 8. When the nut 12 is rotated, the upper clamping block 13 presses onto the bar from above. Then, the nut 12 on the lower side of the upper connecting plate 7 is locked to fix the adjusting stud 10. The bar is fixed using a multi-point fixing method, and cutting can then be performed. If necessary, an additional connecting plate fixing screw 9 can be used, passing through the screw hole 4 of the limiting frame and pressing onto the bar to increase the number of fixing points.

[0018] Components not described in detail in this article are existing technologies.

[0019] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A bar clamping device for a circular saw, characterized in that: The components include a base plate (1), positioning holes (2), a limiting bracket (3), a limiting bracket screw hole (4), a clamping bolt (5), a rear pressure block (6), an upper connecting plate (7), an elongated hole (8), a connecting plate fixing screw (9), an adjusting stud (10), a washer (11), a nut (12), and an upper pressure block (13). The base plate (1) has positioning holes (2) at its four corners, and a limiting bracket (3) is installed on each of the left and right sides of its upper side. The limiting bracket (3) is U-shaped, with connecting screw holes on the front and rear edges of its upper side, and two screw holes in the center. Limiting bracket screw hole (4); the clamping bolt (5) passes through the center of the rear side and the rear end is equipped with a rear pressure block (6); both ends of the upper connecting plate (7) are installed on the limiting bracket (3), and the connecting plate fixing screw (9) passes through the upper connecting plate (7) and is screwed into the connecting screw hole; several elongated holes (8) are evenly spaced on the upper connecting plate (7); the adjusting stud (10) passes through the elongated hole (8) and is equipped with washers (11) and nuts (12) on both the upper and lower sides for locking and fixing; the upper pressure block (13) is installed at the lower end of the adjusting stud (10).

2. The circular saw bar clamping device according to claim 1, characterized in that: The limiting bracket (3) has one upper limiting bracket screw hole (4) located in the center and the other on the front side, both inside the elongated hole (8).

3. The circular saw bar clamping device according to claim 1, characterized in that: The edge of the upper connecting plate (7) is flush with the limiting frame (3), and the two ends of the elongated hole are tangent to the inner side of the limiting frame (3).

4. The circular saw bar clamping device according to claim 1, characterized in that: The clamping bolt (5) is threadedly connected to the limit frame (3), and a locking nut is fitted on it.

5. The bar clamping device for a circular saw machine according to claim 1, characterized in that: Both the rear pressure block (6) and the upper pressure block (13) are made of rubber and are circular in shape.

6. The bar clamping device for a circular saw machine according to claim 1, characterized in that: The length of the adjusting stud (10) is equal to the height of the limiting frame (3), and its diameter is equal to the width of the elongated hole (8).

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