Double-jaw clamp applied to bench drill

Abstract

The utility model discloses a double-jaw clamp applied to a bench drill, which relates to the technical field of bench drills and comprises a base plate, fixing plates are symmetrically arranged on the upper side of the base plate, two clamping plates are arranged between the fixing plates, screw holes are arranged on one side face of each clamping plate, and a limiting groove is arranged on the upper side face of the base plate. The clamping plate is provided with a limiting block corresponding to the limiting groove, and the center of the side face, away from the screw hole, of the clamping plate is provided with a connecting ring. Through the fixing plate, the base plate, the lead screw, the clamping plate, the connecting ring and the rocking handle, an operator rotates the lead screw through the handle, then the lead screw rotates and moves in a threaded hole of the fixing plate, the lead screw pushes the clamping plate to move along a limiting groove through the connecting ring, then a part is clamped and fixed through the clamping plate, and a drill bit is prevented from rotating along with the part; and the safety of the operation process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bench drills, in particular to a double-jaw clamp used for bench drills. Background Art

[0002] Bench drills are frequently used in machining and equipment maintenance. They are easy to operate and offer adjustable speeds. By adjusting the belt and varying the diameter ratio of the drive and driven pulleys, different speeds can be achieved. Drilling machines offer a simple structure, easy maintenance, and a very low failure rate.

[0003] When using existing bench drills, it is difficult to fix the drilling parts, and the parts often rotate together with the drill bit, making the operation process dangerous and easily causing safety accidents. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a double-jaw clamp for bench drills. By setting a fixed plate, a base plate, a screw rod, a clamping plate, a connecting ring and a crank handle, the operator can rotate the screw rod through the handle, thereby causing the screw rod to rotate and move in the threaded hole of the fixed plate. The screw rod pushes the clamping plate to move along the limit groove through the connecting ring, thereby causing the clamping plate to clamp and fix the part, preventing the drill bit from rotating with the part, ensuring the safety of the operation process, and effectively solving the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-jaw clamp for a bench drill, comprising a base plate, a fixing plate symmetrically arranged on the upper side of the base plate, two clamping plates arranged between the fixing plates, a screw hole arranged on one side of the clamping plate, a limiting groove arranged on the upper side of the base plate, a limiting block arranged on the clamping plate corresponding to the position of the limiting groove, a connecting ring provided at the center of a side of the clamping plate away from the screw hole, a ball thrust bearing provided in the connecting ring, a screw rod provided on one side of the ball thrust bearing, a ball bearing provided at the contact position between the screw rod and the connecting ring, a crank provided at one end of the screw rod away from the clamping plate, and a bolt hole provided at the edge of the base plate.

[0006] Furthermore, a reinforcing rib is provided between the fixing plate and the base plate, and a threaded hole is provided at the contact position between the fixing plate and the screw rod.

[0007] Furthermore, the splint is connected to the screw rod via the connecting ring, and the splint is connected to the base plate via the limiting block and the limiting groove.

[0008] Furthermore, the reinforcing ribs are welded to the fixing plate and the base plate, and the crank handle is welded to the screw rod.

[0009] Furthermore, the ball bearing is interference-connected with the connecting ring, and the connecting ring is connected to the clamping plate via bolts.

[0010] Furthermore, the fixing plate is welded to the base plate, and the limiting block is slidably connected to the limiting groove.

[0011] Furthermore, the screw rod is connected to the threaded hole through threads.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model is provided with a fixed plate, a base plate, a screw, a clamping plate, a connecting ring and a crank, so that the operator can rotate the screw by the handle, thereby causing the screw to rotate and move in the threaded hole of the fixed plate. The screw pushes the clamping plate to move along the limit groove through the connecting ring, thereby causing the clamping plate to clamp the part tightly, preventing the drill bit from rotating with the part, and ensuring the safety of the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the main cross-sectional structure of the connection position between the middle connecting ring and the screw rod;

[0016] Figure 3 It is a side structural schematic diagram of the splint in the utility model.

[0017] In the figure: 1. Base plate; 2. Fixing plate; 3. Reinforcing rib; 4. Screw rod; 5. Crank handle; 6. Bolt hole; 7. Threaded hole; 8. Limiting groove; 9. Limiting block; 10. Connecting ring; 11. Ball thrust bearing; 12. Ball bearing; 13. Clamp; 14. Screw hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3, this embodiment provides a technical solution: a double-jaw clamp for a bench drill, comprising a base plate 1, a fixed plate 2 symmetrically arranged on the upper side of the base plate 1, two clamping plates 13 arranged between the fixed plates 2, a screw hole 14 arranged on one side of the clamping plate 13, a limiting groove 8 arranged on the upper side of the base plate 1, a limiting block 9 arranged at the position of the clamping plate 13 corresponding to the limiting groove 8, a connecting ring 10 is arranged at the center of the side of the clamping plate 13 away from the screw hole 14, a ball thrust bearing 11 is arranged in the connecting ring 10, a screw rod 4 is arranged on one side of the ball thrust bearing 11, a ball bearing 12 is arranged at the contact position between the screw rod 4 and the connecting ring 10, a crank handle 5 is arranged on the end of the screw rod 4 away from the clamping plate 13, and a bolt hole 6 is arranged at the edge of the base plate 1.

[0020] like Figure 1-3 As shown, when in use, the connecting bolt is passed through the bolt hole 6 on the base plate 1 and then fixed to the opening slot on the bench drill. When drilling the part, the part is placed between the two clamping plates 13, and then the screw rod 4 is rotated by the crank handle 5, so that the screw rod 4 rotates in the threaded hole 6 of the fixed plate 2, so that the screw rod 4 pushes the clamping plate 13 to move through the connecting ring 10, and then the part is clamped and fixed, ensuring that the part is effectively fixed, preventing the part from rotating with the drill bit, and ensuring that the part drilling process is safer.

[0021] A reinforcing rib 3 is provided between the fixing plate 2 and the base plate 1 , and a threaded hole 7 is provided at the contact position between the fixing plate 2 and the screw rod 4 .

[0022] The clamping plate 13 is connected to the screw rod 4 through a connecting ring 10 , and the clamping plate 13 is connected to the base plate 1 through a limiting block 9 and a limiting groove 8 .

[0023] The reinforcing ribs 3 are welded to the fixing plate 2 and the base plate 1 , and the crank handle 5 is welded to the screw rod 4 .

[0024] The ball bearing 12 is interference-connected to the connecting ring 10 , and the connecting ring 10 is connected to the clamping plate 13 by bolts.

[0025] The fixing plate 2 is welded to the base plate 1 , and the limiting block 9 is slidably connected to the limiting groove 8 .

[0026] The screw rod 4 is connected to the threaded hole 7 through threads.

[0027] The working principle of the double jaw clamp for bench drilling provided by the utility model is as follows: Figure 1-Figure 3As shown, when in use, the connecting bolt is passed through the bolt hole 6 on the base plate 1 and then fixed to the opening slot on the bench drill. When drilling the part, the part is placed between the two clamping plates 13, and then the screw rod 4 is rotated by the crank handle 5, so that the screw rod 4 rotates in the threaded hole 6 of the fixed plate 2, so that the screw rod 4 pushes the clamping plate 13 to move through the connecting ring 10, and then the part is clamped and fixed, ensuring that the part is effectively fixed, preventing the part from rotating with the drill bit, and ensuring that the part drilling process is safer.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-jaw clamp for a bench drill, comprising a base plate (1), characterized in that: A fixing plate (2) is symmetrically arranged on the upper side of the base plate (1), two clamping plates (13) are arranged between the fixing plates (2), a screw hole (14) is arranged on one side of the clamping plate (13), a limiting groove (8) is arranged on the upper side of the base plate (1), a limiting block (9) is arranged on the clamping plate (13) corresponding to the position of the limiting groove (8), a connecting ring (10) is arranged at the center of one side of the clamping plate (13) away from the screw hole (14), a ball thrust bearing (11) is arranged in the connecting ring (10), a screw rod (4) is arranged on one side of the ball thrust bearing (11), a ball bearing (12) is arranged at the contact position between the screw rod (4) and the connecting ring (10), a crank handle (5) is arranged on one end of the screw rod (4) away from the clamping plate (13), and a bolt hole (6) is arranged at the edge position of the base plate (1).

2. The double-jaw clamp for a bench drill according to claim 1, characterized in that: A reinforcing rib (3) is provided between the fixing plate (2) and the base plate (1), and a threaded hole (7) is provided at the contact position between the fixing plate (2) and the screw rod (4).

3. The double-jaw clamp for a bench drill according to claim 1, characterized in that: The clamping plate (13) is connected to the screw rod (4) via the connecting ring (10), and the clamping plate (13) is connected to the base plate (1) via the limiting block (9) and the limiting groove (8).

4. The double-jaw clamp for a bench drill according to claim 2, characterized in that: The reinforcing rib (3) is welded to the fixing plate (2) and the base plate (1), and the crank (5) is welded to the screw rod (4).

5. The double-jaw clamp for a bench drill according to claim 1, characterized in that: The ball bearing (12) is interference-connected with the connecting ring (10), and the connecting ring (10) is connected with the clamping plate (13) via bolts.

6. The double-jaw clamp for a bench drill according to claim 1, characterized in that: The fixing plate (2) is welded to the base plate (1), and the limiting block (9) is slidably connected to the limiting groove (8).

7. The double-jaw clamp for a bench drill according to claim 2, characterized in that: The screw rod (4) is connected to the threaded hole (7) via threads.

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