Clamping device for hardware machining

Abstract

The utility model discloses a clamping device for hardware machining, which relates to the technical field of hardware machining and comprises a fixing seat, a first shell fixedly connected to the upper end of the fixing seat, a first extrusion ring rotatably connected to the inner side of the first shell, and a guide plate fixedly connected to the inner side of the first shell. Extrusion keys are slidably connected to the surfaces of the guide plates, and reset springs are fixedly connected to the inner sides of the extrusion keys. The clamp is reasonable in design structure, the first extrusion ring and the second extrusion ring which are independent are arranged to be close to each other, so that a cylindrical workpiece can be better placed in the clamp, the first extrusion ring and the second extrusion ring rotate to push the extrusion key, the extrusion key can be attached to and clamp the workpiece, and the worm gear and the worm are arranged for transmission. The clamping device can prevent a clamped workpiece from turning over and loosening in the machining process, the effect of firmly clamping the cylindrical workpiece is achieved, and the problem that the cylindrical hardware is prone to shaking when clamped is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardware machining technical field, concretely is a kind of clamping device for hardware machining. BACKGROUND

[0002] Hardware fittings refer to machine parts or components made of hardware, and some small hardware products, which can be used alone, or can be made into assisting tools, such as hardware tools, hardware parts, daily hardware, building hardware and security products, etc. Small hardware products are mostly not final consumer goods, but supporting products for industrial manufacturing, semi-finished products and tools used in production process, etc. Only a small part of daily hardware products are tool-type consumer goods necessary for people's life.

[0003] Hardware fittings need to be clamped during processing to facilitate processing. The existing equipment is prone to shaking when clamping cylindrical hardware, and the diameter of the clamped hardware is single and cannot be changed. Therefore, the clamping device for hardware machining is provided to solve the above problems. SUMMARY

[0004] I) Technical problem to be solved

[0005] The utility model aims at making up for the deficiency of prior art, and provides a clamping device for hardware machining.

[0006] II) Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of clamping device for hardware machining, including fixed base, the fixed base upper end is fixedly connected with first shell, first shell inner side is rotatably connected with first extrusion ring, first shell inner side is fixedly connected with guide plate, guide plate surface is slidably connected with extrusion key, extrusion key inner side is fixedly connected with return spring, the end of return spring away from extrusion key is fixedly connected with guide plate, first shell inner side is rotatably connected with knob gear, knob gear end surface is fixedly connected with worm shaft, worm shaft is rotatably connected with fixed base, fixed base inner side is rotatably connected with worm, worm is engaged with worm shaft, and worm end surface is fixedly connected with rotating wheel;

[0008] The fixed base surface is slidably connected with moving seat, the moving seat inner side is fixedly connected with clamping motor, the clamping motor output end is fixedly connected with threaded shaft, the threaded shaft is rotatably connected with moving seat, the threaded shaft is screw connected with fixed base, the moving seat upper end is fixedly connected with second shell, the second shell inner side is rotatably connected with second extrusion ring, the second extrusion ring outer side is fixedly connected with extrusion spring, the end of extrusion spring away from second extrusion ring is fixedly connected with second shell, the second shell inner side is fixedly connected with guide plate, and the guide plate surface is connected with extrusion key.

[0009] Further, the first extrusion ring is in the shape of a semicircle, teeth are arranged on the outer circumferential surface of the first extrusion ring and mesh with the driving teeth, and a sliding groove is arranged on the inner circumferential surface of the first extrusion ring, and the sliding groove of the first extrusion ring is in the shape of a sawtooth, and the extrusion key slides in the sliding groove.

[0010] Further, the side surface of the extrusion key is in the shape of a T, a square hole is arranged on the sliding end of the extrusion key and the guide plate, and the reset spring is fixedly connected to the inside of the square hole of the extrusion key.

[0011] Further, the middle part of the worm wheel shaft is a worm wheel, and a round rod is fixedly connected to both ends of the worm wheel, and the end surface of the round rod is fixedly connected with the driving teeth.

[0012] Further, the second extrusion ring is in the shape of a semicircle, a sliding groove is arranged on the inner circumferential surface of the second extrusion ring, the sliding groove of the second extrusion ring is in the shape of a sawtooth, a protruding key is arranged on the outer circumferential surface of the second extrusion ring, and the upper and lower sides of the protruding key are fixedly connected with the extrusion springs.

[0013] Further, the extrusion springs are arranged in two groups on the upper and lower ends of the second extrusion ring, and the extrusion springs are arranged in an arc shape on the inside of the second shell.

[0014] III) Beneficial effects:

[0015] Compared with the prior art, the clamping device for hardware machining has the following beneficial effects:

[0016] I. The independent first extrusion ring and the second extrusion ring are arranged to be close to each other, so that the cylindrical workpiece can be better placed in the clamp, the first extrusion ring and the second extrusion ring are rotated to push the extrusion key, so that the extrusion key can be attached to clamp the workpiece, the worm and gear transmission is arranged, the clamped workpiece can be prevented from turning and loosening during the machining process, the effect of firmly clamping the cylindrical workpiece is achieved, and the problem that the cylindrical hardware is prone to shaking during clamping is solved.

[0017] II. The independent extrusion key can interact, so that the diameter of the clamped workpiece can be changed, the first extrusion ring is rotated to push the second extrusion ring, so that the extrusion key is simultaneously extended, so that the cylindrical workpiece can be clamped in the center, the effect of clamping workpieces of various diameters is achieved, and the problem that the workpiece diameter cannot be firmly clamped is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a first extrusion ring structure schematic view of the utility model;

[0020] Figure 3 It is a second extrusion ring structure schematic view of the utility model;

[0021] Figure 4 It is the extrusion key structure schematic view of the utility model.

[0022] In the figure: 1, fixed seat; 2, first shell; 3, first extrusion ring; 4, guide plate; 5, extrusion key; 6, reset spring; 7, dial tooth; 8, worm shaft; 9, worm; 10, rotating wheel; 11, moving seat; 12, clamping motor; 13, threaded shaft; 14, second shell; 15, second extrusion ring; 16, extrusion spring. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] As Figures 1-4 shown, the utility model provides a kind of technical scheme: a clamping device for hardware machining, including fixed seat 1, fixed seat 1 upper end is fixedly connected with first shell 2, first shell 2 inner side is rotatably connected with first extrusion ring 3, first shell 2 inner side is fixedly connected with guide plate 4, guide plate 4 surface is slidably connected with extrusion key 5, extrusion key 5 inner side is fixedly connected with reset spring 6, the end of reset spring 6 away from extrusion key 5 is fixedly connected with guide plate 4, first shell 2 inner side is rotatably connected with dial tooth 7, first extrusion ring 3 appearance is semicircular ring, first extrusion ring 3 outer peripheral surface is provided with tooth and is engaged with dial tooth 7, first extrusion ring 3 inner peripheral surface is provided with sliding slot, the sliding slot of first extrusion ring 3 is sawtooth shape, extrusion key 5 slides in sliding slot inner side, first extrusion ring 3 can be rotated by dial tooth 7 Pushes at the same time using inner side sawtooth shape sliding groove to push extrusion key 5 to center close to clamping workpiece.

[0025] The side of extrusion key 5 is "T" shape, the end of extrusion key 5 and guide plate 4 sliding is provided with square hole, reset spring 6 is fixedly connected in the square hole inner side of extrusion key 5, extrusion key 5 can be pushed out to clamp workpiece after being pushed, and can be reset by reset spring 6 when not being subjected to external force.

[0026] Dial tooth 7 end surface is fixedly connected with worm shaft 8, worm shaft 8 is rotatably connected with fixed seat 1, fixed seat 1 inner side is rotatably connected with worm 9, worm 9 is engaged with worm shaft 8, the middle of worm shaft 8 is worm, both ends of worm are fixedly connected with round bar, the end surface of round bar is fixedly connected with dial tooth 7, worm shaft 8 can be unidirectionally pushed by worm 9 to prevent clamping workpiece from reversing to cause the problem of not firm clamping.

[0027] The worm 9 end face is fixedly connected with a rotating wheel 10, the fixed seat 1 surface is slidably connected with a moving seat 11, the moving seat 11 inner side is fixedly connected with a clamping motor 12, the clamping motor 12 output end is fixedly connected with a threaded shaft 13, the threaded shaft 13 is rotatably connected with the moving seat 11, the threaded shaft 13 is screw connected with the fixed seat 1, the moving seat 11 upper end is fixedly connected with a second shell 14, the second shell 14 inner side is rotatably connected with a second extrusion ring 15, the second extrusion ring 15 outer side is fixedly connected with an extrusion spring 16, the extrusion spring 16 far end away from the second extrusion ring 15 is fixedly connected with the second shell 14, the second extrusion ring 15 appearance is a half ring, the second extrusion ring 15 inner circumferential surface is provided with a sliding slot, the second extrusion ring 15 sliding slot is sawtooth-shaped, the second extrusion ring 15 outer circumferential surface is provided with a key, the key upper and lower sides are fixedly connected with the extrusion spring 16, the second extrusion ring 15 can be rotated by the first extrusion ring 3 and pushed, so that the extrusion key 5 is pushed out, and the effect of clamping workpieces is achieved.

[0028] The second shell 14 inner side is fixedly connected with a guide plate 4, the guide plate 4 surface is connected with an extrusion key 5, the extrusion spring 16 has two groups respectively at the second extrusion ring 15 upper and lower ends, the extrusion spring 16 is arc-shaped and curved on the second shell 14 inner side, and the extrusion spring 16 can push the second extrusion ring 15 and reset in time.

[0029] Working principle: when using, first, cylindrical hardware is placed in the guide plate 4 of the first shell 2 and the guide plate 4 of the second shell 14, the threaded shaft 13 is rotated by starting the clamping motor 12, the moving seat 11 is slid and close to the fixed seat 1, the first shell 2 and the second shell 14 are close to clamp the workpiece, the worm 9 is rotated by rotating the rotating wheel 10, the worm wheel shaft 8 drives the two end driving teeth 7 to rotate, the first extrusion ring 3 pushes and slides in the first shell 2 inner side, at the same time, the first extrusion ring 3 pushes the second extrusion ring 15, the first extrusion ring 3 and the second extrusion ring 15 push the extrusion key 5 to extend on the guide plate 5 surface and clamp the workpiece, after the worm 9 reversely rotates, the extrusion spring 16 pushes the second extrusion ring 15 to reset, and the extrusion key 5 is pushed to reset by the reset spring 6.

Claims

1. A clamping device for hardware machining, comprising a fixed seat (1), characterized in that: The first shell (2) is fixedly connected to the upper end of the fixed seat (1), a first extrusion ring (3) is rotatably connected to the inner side of the first shell (2), a guide plate (4) is fixedly connected to the inner side of the first shell (2), an extrusion key (5) is slidably connected to the surface of the guide plate (4), a return spring (6) is fixedly connected to the inner side of the extrusion key (5), one end of the return spring (6) away from the extrusion key (5) is fixedly connected to the guide plate (4), a driving tooth (7) is rotatably connected to the inner side of the first shell (2), a worm shaft (8) is fixedly connected to the end face of the driving tooth (7), the worm shaft (8) is rotatably connected to the fixed seat (1), a worm (9) is rotatably connected to the inner side of the fixed seat (1), the worm (9) is engaged with the worm shaft (8), and a rotating wheel (10) is fixedly connected to the end face of the worm (9). The moving seat (11) is slidably connected to the surface of the fixed seat (1), a clamping motor (12) is fixedly connected to the inner side of the moving seat (11), a threaded shaft (13) is fixedly connected to the output end of the clamping motor (12), the threaded shaft (13) is rotatably connected to the moving seat (11), the threaded shaft (13) is in threaded connection with the fixed seat (1), a second shell (14) is fixedly connected to the upper end of the moving seat (11), a second extrusion ring (15) is rotatably connected to the inner side of the second shell (14), an extrusion spring (16) is fixedly connected to the outer side of the second extrusion ring (15), one end of the extrusion spring (16) away from the second extrusion ring (15) is fixedly connected to the second shell (14), and the guide plate (4) is fixedly connected to the inner side of the second shell (14).

2. The clamping device for hardware machining according to claim 1, characterized in that: The first extrusion ring (3) is in the shape of a semicircle, teeth are formed on the outer circumferential surface of the first extrusion ring (3) and engaged with the driving tooth (7), and a sliding groove is formed on the inner circumferential surface of the first extrusion ring (3), wherein the sliding groove of the first extrusion ring (3) is in a zigzag shape, and the extrusion key (5) slides in the sliding groove.

3. The clamping device for hardware machining according to claim 1, characterized in that: The side surface of the extrusion key (5) is in the shape of a "T", a square hole is formed in the sliding end of the extrusion key (5) relative to the guide plate (4), and the return spring (6) is fixedly connected to the inner side of the square hole of the extrusion key (5).

4. The clamping device for hardware machining according to claim 1, characterized in that: The worm shaft (8) is in the shape of a worm in the middle, and a circular rod is fixedly connected to both ends of the worm, and the end face of the circular rod is fixedly connected with the driving tooth (7).

5. The clamping device for hardware machining according to claim 1, characterized in that: The second extrusion ring (15) is in the shape of a semicircle, a sliding groove is formed on the inner circumferential surface of the second extrusion ring (15), the sliding groove of the second extrusion ring (15) is in a zigzag shape, a protruding key is arranged on the outer circumferential surface of the second extrusion ring (15), and the protruding key is fixedly connected with the extrusion spring (16) on both sides.

6. The clamping device for hardware machining according to claim 1, characterized in that: There are two groups of extrusion springs (16) on the upper and lower ends of the second extrusion ring (15), and the extrusion springs (16) are curved in an arc shape and located on the inner side of the second shell (14).

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