Fixing clamp for milling machine table

Abstract

The utility model relates to the technical field of fixing clamps for milling machine workbenches, and discloses a fixing clamp for milling machine workbenches, which comprises a base and is characterized in that fixing clamping blocks are symmetrically arranged on a rod body, and a plurality of fixing clamping holes are formed in the surfaces of the fixing clamping blocks, so that the fixing clamping blocks can be fixed on the base; a top plate and a compression spring are arranged in a first mechanism cavity of the base, fixed insertion columns are symmetrically connected to the two ends of the top plate, a rotating pinching plate is connected to one end of a first rotating rod in a second mechanism cavity, a wire passing opening is communicated between the first mechanism cavity and the second mechanism cavity, and a traction wire is connected between the top plate and the first rotating rod. And after the threaded rod is rotated to clamp and fix the workpiece through the clamping and fixing plate, the threaded rod is fixed through cooperation of the fixing insertion column and the fixing clamping hole, and the situation that in the workpiece machining process, the threaded rod rotates due to generated vibration, and then the workpiece is loosened is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing fixtures for milling machine workbenches, in particular to a fixing fixture for milling machine workbenches. Background Art

[0002] The milling machine is a widely used machine tool. It can process planes (horizontal and vertical surfaces), grooves (keyways, T-slots, dovetail grooves, etc.), toothed parts (gears, spline shafts, sprockets), spiral surfaces (threads, spiral grooves) and various curved surfaces. In addition, it can also be used for processing the surface of rotating bodies, inner holes and cutting. When the milling machine is working, the workpiece is mounted on the workbench or accessories such as the dividing head. The rotation of the milling cutter is the main motion, supplemented by the feed motion of the workbench or the milling head, so that the workpiece can obtain the required processing surface. Due to the multi-blade intermittent cutting, the productivity of the milling machine is relatively high. Simply put, a milling machine is a machine tool that can perform milling, drilling and boring on the workpiece. When the workpiece is processed by the milling machine, a fixing fixture is needed to fix the workpiece.

[0003] Some fixing fixtures for milling machine worktables on the market currently, after fixing the workpiece through the threaded rod controlling the fastening plate, lack a mechanism to fix the threaded rod. As a result, during the workpiece processing, the vibration generated may cause the threaded rod to rotate, thereby causing the workpiece to loosen, thus affecting the processing quality.

[0004] Therefore, we propose a fixing fixture for a milling machine table to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that some current fixing fixtures for milling machine workbenches, after the workpiece is fixed by controlling the fastening plate through the threaded rod, lack of a mechanism for fixing the threaded rod, leads to the vibration generated during the workpiece processing process may cause the rotation of the threaded rod, thereby causing the workpiece to loosen, thereby affecting the processing quality.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fixing fixture for a milling machine workbench, comprising a base, a fixture plate is arranged on the base, a clamping groove is provided on the upper surface of the fixture plate, a screw groove is provided on the bottom wall of the clamping groove, a threaded rod is provided in the screw groove, the threaded rod comprises a rod body, a first external thread and a second external thread are symmetrically provided on the surface of the rod body, limiting plates are symmetrically provided at positions near both ends of the rod body, and fixing blocks are symmetrically provided at positions near both ends of the rod body, a plurality of fixing holes are provided on the surface of the fixing block, a limiting groove rotatably connected to the limiting plate is provided in the fixture plate, a connecting block is provided at one end of the rod body, and the connecting block A handle rod is provided on the top, and two movable plates are symmetrically provided on the rod body, the first external thread and the second external thread are both threadedly connected to the movable plate, the top of the movable plate is connected with a clamping plate, the first mechanism cavity and the second mechanism cavity are provided in the base, the first mechanism cavity is provided with a top plate and a compression spring, the two ends of the top plate are symmetrically connected with fixed plugs, the fixed plugs are slidably connected with the fixed card holes, the first rotating rod is provided in the second mechanism cavity, one end of the first rotating rod is connected with a rotating pinching plate, and the other end of the first rotating rod is rotatably connected to the inner wall of the second mechanism cavity, the first mechanism cavity and the second mechanism cavity are connected by a wire passing port, and a pulling wire is connected between the top plate and the first rotating rod.

[0007] Furthermore, the handle rod includes a second rotating rod, and limiting balls are symmetrically connected to both ends of the second rotating rod. An adapter hole slidably connected to the second rotating rod is opened on the surface of the connecting block, and the diameter of the adapter hole is smaller than the diameter of the limiting ball.

[0008] Furthermore, a plurality of first balls are arranged on the inner wall of the limiting groove, and the first balls are in contact with the limiting plate.

[0009] Furthermore, the thread directions of the first external thread and the second external thread are opposite.

[0010] Furthermore, chip removal grooves connected to the screw grooves are symmetrically provided on both side surfaces of the clamping plate, and the inner bottom walls of the chip removal grooves are provided with a slope structure.

[0011] Furthermore, pads are provided on opposite sides of the two clamping plates, fixing bolts are provided on the pads, and the pads are connected to the clamping plates via the fixing bolts.

[0012] Furthermore, second balls are provided on the lower surface of the clamping plate near both ends, and the second balls are in contact with the bottom wall of the clamping groove.

[0013] The beneficial effects of the utility model are as follows: fixed blocks are symmetrically arranged on the rod body, a plurality of fixed clamping holes are opened on the surface of the fixed clamping blocks, a top plate and a compression spring are arranged in the first mechanism cavity of the base, fixed plug posts are symmetrically connected to both ends of the top plate, a rotating pinching plate is connected to one end of the first rotating rod in the second mechanism cavity, and a wire passing port is connected between the first mechanism cavity and the second mechanism cavity, a pulling wire is connected between the top plate and the first rotating rod, and after the rotating threaded rod clamps the workpiece through the clamping plate, the threaded rod is fixed by the cooperation of the fixed plug posts and the fixed clamping holes, so as to prevent the threaded rod from rotating due to the vibration generated during the processing of the workpiece, thereby causing the workpiece to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a fixing fixture for a milling machine workbench of the utility model;

[0015] Figure 2 This is a first cross-sectional structural schematic diagram of the fixing fixture for a milling machine workbench of the utility model;

[0016] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure A;

[0017] Figure 4 It is a second cross-sectional structural schematic diagram of the fixing fixture for the milling machine workbench of the utility model;

[0018] Figure 5 The utility model is a partial structural schematic diagram of a fixing fixture for a milling machine workbench.

[0019] The names corresponding to the marks in the figure are:

[0020] 1. Base; 101. First mechanism cavity; 102. Second mechanism cavity; 103. Wire passing port; 2. Fixture plate; 201. Clamping groove; 202. Screw groove; 203. Limiting groove; 204. Chip removal groove; 3. Rod body; 31. First external thread; 32. Second external thread; 4. Limiting plate; 5. Fixed block; 51. Fixed hole; 6. Connecting block; 7. Handle bar; 71. Second rotating bar; 72. Limiting ball; 8. Moving plate; 9. Clamping plate; 10. Top plate; 11. Compression spring; 12. Fixed plug; 13. First rotating bar; 131. Pulling line; 14. Rotating pinching plate; 15. First ball; 16. Pad; 17. Fixing bolt; 18. Second ball. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0022] Embodiments of the present utility model:

[0023] Embodiment 1

[0024] like Figure 1-Figure 5As shown, the utility model provides a fixing fixture for a milling machine workbench, including a base 1, a fixture plate 2 is arranged on the base 1, a clamping groove 201 is opened on the upper surface of the fixture plate 2, a screw groove 202 is opened on the inner bottom wall of the clamping groove 201, a threaded rod is arranged in the screw groove 202, and the threaded rod includes a rod body 3, a first external thread 31 and a second external thread 32 are symmetrically arranged on the surface of the rod body 3, a limit plate 4 is symmetrically arranged near both ends of the rod body 3, and a fixed clamping block 5 is symmetrically arranged near both ends of the rod body 3, a plurality of fixed clamping holes 51 are opened on the surface of the fixed clamping block 5, and a limit groove rotatably connected to the limit plate 4 is opened in the fixture plate 2 203, a connecting block 6 is provided at one end of the rod body 3, a handle rod 7 is provided on the connecting block 6, two movable plates 8 are symmetrically provided on the rod body 3, the first external thread 31 and the second external thread 32 are both threadedly connected to the movable plate 8, a clamping plate 9 is connected to the top of the movable plate 8, a first mechanism cavity 101 and a second mechanism cavity 102 are provided in the base 1, a top plate 10 and a compression spring 11 are provided in the first mechanism cavity 101, fixed plugs 12 are symmetrically connected at both ends of the top plate 10, the fixed plugs 12 are slidably connected to the fixed card hole 51, a first rotating rod 13 is provided in the second mechanism cavity 102, one end of the first rotating rod 13 is connected to a rotating pinching plate 14, and The other end of the first rotating rod 13 is rotatably connected to the inner wall of the second mechanism cavity 102, and a wire opening 103 is connected between the first mechanism cavity 101 and the second mechanism cavity 102. A pulling wire 131 is connected between the top plate 10 and the first rotating rod 13. The handle rod 7 includes a second rotating rod 71, and the two ends of the second rotating rod 71 are symmetrically connected to the limiting balls 72. An adapter hole slidably connected to the second rotating rod 71 is opened on the surface of the connecting block 6. The diameter of the adapter hole is smaller than the diameter of the limiting ball 72. Pads 16 are provided on the opposite sides of the two clamping plates 9, and fixing bolts 17 are provided on the pads 16. The pads 16 are connected to the clamping plates 9 by fixing bolts 17. The workpiece can be placed in the clamping groove 201 of the clamp plate 2, and then the handle rod 7 is turned to rotate the threaded rod to drive the movable plate 8 and the clamping plate 9 to move and clamp the workpiece. When the threaded rod needs to be rotated, it is only necessary to twist the rotating pinching plate 14 to rotate the first rotating rod 13, and then pull the top plate 10 to move through the pulling line 131, and pull the fixed plug 12 out of the fixed card hole 51, and then the threaded rod can be rotated. After the rotation is completed, it is only necessary to loosen the rotating pinching plate 14, and the top plate 10 will be reset under the action of the compression spring 11, so that the fixed plug 12 is inserted into the fixed card hole 51 to fix the threaded rod.

[0025] Embodiment 2

[0026] like Figure 1-Figure 5As shown, on the basis of the first embodiment of the utility model: a plurality of first balls 15 are arranged on the inner wall of the limit groove 203, and the first balls 15 are in contact with the limit plate 4. Through such an arrangement, friction can be reduced and the rotation of the threaded rod is facilitated. The thread directions of the first external thread 31 and the second external thread 32 are opposite. The two sides of the clamping plate 2 are symmetrically provided with chip grooves 204 connected to the screw groove 202, and the inner bottom wall of the chip groove 204 is provided with a slope structure. Through such an arrangement, it is convenient to discharge the cutting waste chips falling into the screw groove 202. Second balls 18 are arranged on the lower surface of the clamping plate 9 near both ends, and the second balls 18 are in contact with the inner bottom wall of the clamping groove 201. Through such an arrangement, friction can be reduced and the movement of the clamping plate 9 is facilitated.

Claims

1. A fixing fixture for a milling machine workbench, comprising a base (1), characterized in that: The base (1) is provided with a clamping plate (2), the upper surface of the clamping plate (2) is provided with a clamping groove (201), the inner bottom wall of the clamping groove (201) is provided with a screw groove (202), a threaded rod is provided in the screw groove (202), the threaded rod comprises a rod body (3), the surface of the rod body (3) is symmetrically provided with a first external thread (31) and a second external thread (32), and the rod body (3) is symmetrically provided with a limit plate (4) near both ends. , and fixed blocks (5) are symmetrically arranged near both ends of the rod body (3), and a plurality of fixed holes (51) are provided on the surface of the fixed blocks (5), and a limit groove (203) rotatably connected to the limit plate (4) is provided in the clamp plate (2), and a connecting block (6) is provided at one end of the rod body (3), and a handle bar (7) is provided on the connecting block (6), and two movable plates (8) are symmetrically arranged on the rod body (3), and the first external thread ( The first mechanism cavity (101) and the second mechanism cavity (102) are provided in the base (1), the first mechanism cavity (101) is provided with a top plate (10) and a compression spring (11), the two ends of the top plate (10) are symmetrically connected with fixed plugs (12), the fixed plugs (12) are slidably connected with the fixed card hole (51), the second mechanism cavity (102) is provided with a first rotating rod (13), one end of the first rotating rod (13) is connected with a rotating pinching plate (14), and the other end of the first rotating rod (13) is rotatably connected with the inner wall of the second mechanism cavity (102), the first mechanism cavity (101) and the second mechanism cavity (102) are connected by a wire passing port (103), and a pulling wire (131) is connected between the top plate (10) and the first rotating rod (13).

2. A fixing fixture for a milling machine workbench according to claim 1, characterized in that: The handle bar (7) comprises a second rotating bar (71), and the two ends of the second rotating bar (71) are symmetrically connected to limiting balls (72). The surface of the connecting block (6) is provided with an adapting hole slidably connected to the second rotating bar (71), and the diameter of the adapting hole is smaller than the diameter of the limiting ball (72).

3. A fixing fixture for a milling machine workbench according to claim 1, characterized in that: A plurality of first rolling balls (15) are arranged on the inner wall of the limiting groove (203), and the first rolling balls (15) are in contact with the limiting plate (4).

4. The fixing fixture for a milling machine workbench according to claim 1, characterized in that: The thread directions of the first external thread (31) and the second external thread (32) are opposite.

5. The fixing fixture for a milling machine workbench according to claim 1, characterized in that: The two side surfaces of the clamping plate (2) are symmetrically provided with chip removal grooves (204) connected to the screw groove (202), and the inner bottom wall of the chip removal groove (204) is provided with a slope structure.

6. A fixing fixture for a milling machine workbench according to claim 1, characterized in that: Pads (16) are arranged on opposite sides of the two clamping plates (9), fixing bolts (17) are arranged on the pads (16), and the pads (16) and the clamping plates (9) are connected via the fixing bolts (17).

7. A fixing fixture for a milling machine workbench according to claim 1, characterized in that: Second rolling balls (18) are provided at positions close to both ends of the lower surface of the clamping plate (9), and the second rolling balls (18) are in contact with the inner bottom wall of the clamping groove (201).

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