Disc type workpiece fixing clamp for machining

Abstract

The utility model discloses a disc type workpiece fixing clamp for machining, which relates to the technical field of clamps and comprises an equipment platform, radial sliding sleeves are fixedly connected to the upper surface of the equipment platform in a circumferential array mode, the top ends of the radial sliding sleeves are slidably connected with a radial sliding frame, and a clamping mechanism is arranged on the upper surface of the radial sliding frame. The clamping mechanism comprises a clamping sliding sleeve, the clamping sliding sleeve is fixedly connected to the upper surface of the radial sliding frame, and the clamping sliding sleeve is slidably connected with a sliding cylinder. The device has the beneficial effects that the radial sliding mechanism slides in the radial direction through the power mechanism, the distance between the clamping mechanisms is driven to change, when vertical clamping plates of the clamping mechanisms clamp workpieces, the workpieces reversely push the vertical clamping plates, the vertical clamping plates push first connecting rods to move outwards, the first connecting rods continue to support the outer sides of second connecting rods, and therefore the workpieces are clamped. The inner side of the second connecting rod faces downwards, the upper clamping plate tightly presses the lower clamping plate, then the workpiece is clamped from the circumferential face and the end face of the workpiece, and curled edges are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a disc-type workpiece fixing clamp for mechanical processing. Background Art

[0002] In the machining industry, disc-shaped workpieces are often processed. When processing such parts, special disc-shaped workpiece fixtures are generally used to fix the workpieces.

[0003] For example, the patent document with the announcement number CN220240697U discloses a disc-type workpiece fixing fixture for mechanical processing. The fixture uses a bevel gear in the middle to control the rotation of multiple threaded rods. The threaded rods generate diameter movement through threaded clamps, which can produce a clamping effect from the end face of the disc. However, when clamping a thin disc, the edge of the disc is prone to curling due to the large clamping force, affecting the quality of the workpiece. Utility Model Content

[0004] The purpose of the utility model is to provide a disc-type workpiece fixing fixture for mechanical processing in order to solve the above-mentioned problem.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] The cam is secured to the upper edge of the support frame and is adapted to engage the camshaft of the slide to engage with the guide rail when the camshaft is engaged.

[0007] Preferably, the pressing assembly includes connecting rod 1, the bottom end of connecting rod 1 is hinged to the end of the sliding cylinder away from the center of the equipment platform, the top of connecting rod 1 is hinged to connecting rod 2, the middle part of connecting rod 2 is hinged to the top of the clamping sleeve, and the other end of connecting rod 2 is hinged to the upper clamp.

[0008] Preferably, the radial sliding mechanism includes a bearing seat, which is fixedly connected to one side of the radial sleeve. The bearing seat is rotatably connected to a rotating shaft, and the top of the rotating shaft is fixedly connected to an upper gear, the upper gear is meshed with a rack, and the rack is fixedly connected to one side of the radial sliding frame.

[0009] Preferably, the radial sliding mechanism further comprises a lower gear, which is fixedly connected to the bottom end of the rotating shaft, the lower gear is meshingly connected to the inner gear ring, and the inner gear ring is rotatably connected to the upper surface of the equipment platform.

[0010] Preferably, the power mechanism includes a worm gear ring, which is fixedly connected to the outer side of the inner gear ring, the worm gear ring is meshed with a worm, both ends of the worm are rotatably connected to worm bearing seats, and the worm bearing seats are fixedly connected to the upper surface of the equipment platform.

[0011] Preferably, the power mechanism further comprises a worm motor, and an output shaft of the worm motor is fixedly connected to one end of the worm.

[0012] The beneficial effect is that: the radial sliding mechanism is driven by a power mechanism to produce radial sliding, thereby driving the spacing of the clamping mechanism to change. When the vertical clamping plate of the clamping mechanism clamps the workpiece, the workpiece pushes the vertical clamping plate in the opposite direction, and the vertical clamping plate pushes connecting rod one to move outward. Connecting rod one continues to support the outer side of connecting rod two, so that the inner side of connecting rod two is downward, so that the upper clamping plate presses the lower clamping plate, and then clamps the workpiece from the circumferential surface and end face to prevent the formation of curling.

[0013] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation to the present invention. In the accompanying drawings:

[0015] Figure 1 This is a first schematic diagram of a disc-type workpiece fixing fixture for machining described in the utility model;

[0016] Figure 2 The utility model is a disc-type workpiece fixing fixture for mechanical processing. Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 This is a second schematic diagram of a disc-type workpiece fixing fixture for machining according to the utility model;

[0018] Figure 4 It is a top view of a disc-type workpiece fixing fixture for mechanical processing described in the utility model.

[0019] The accompanying drawings are marked as follows: 1. Equipment platform; 2. Radial sliding sleeve; 3. Radial sliding frame; 41. Clamping sliding sleeve; 42. Sliding cylinder; 43. Vertical clamping plate; 44. Return spring; 45. Lower clamping plate; 46. Connecting rod one; 47. Connecting rod two; 48. Upper clamping plate; 51. Bearing seat; 52. Rotating shaft; 53. Upper gear; 54. Rack; 55. Lower gear; 56. Inner gear ring; 61. Worm gear ring; 62. Worm; 63. Worm bearing seat; 64. Worm motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figure 1 - Figure 4 As shown, a disc-type workpiece fixing fixture for machining includes an equipment platform 1, a radial sleeve 2 is fixedly connected to the upper surface of the equipment platform 1 in a circumferential array, a radial sliding frame 3 is slidably connected to the top of the radial sleeve 2, a clamping mechanism is provided on the upper surface of the radial sliding frame 3, and the clamping mechanism includes a clamping sleeve 41, the clamping sleeve 41 is fixedly connected to the upper surface of the radial sliding frame 3, the clamping sleeve 41 is slidably connected to a sliding cylinder 42, the sliding direction of the sliding cylinder 42 is the diameter direction of the equipment platform 1, and the sliding cylinder 42 is close to the equipment platform 1. A vertical clamping plate 43 is fixedly connected to one end of the center of the equipment platform 1, and a lower clamping plate 45 is fixedly connected to the side of the vertical clamping plate 43 close to the center of the equipment platform 1. The vertical clamping plate 43 is slidably connected to the upper surface of the radial sliding frame 3, and a return spring 44 is provided on the outer side of the sliding cylinder 42. The two ends of the return spring 44 are respectively fixedly connected to the clamping sleeve 41 and the vertical clamping plate 43. A downward pressing component is provided on the top of the sliding cylinder 42, and a radial sliding mechanism for driving the radial sleeve 2 to slide is provided on the upper surface of the equipment platform 1, and a power mechanism is provided on the outer side of the radial sliding mechanism.

[0024] The clamping sleeve 41 is used for slidingly connecting the sliding cylinder 42, the sliding cylinder 42 is used to connect the connecting rod 46, and keep the distance between the vertical clamping plate 43 and the clamping sleeve 41 adjustable, the reset spring 44 is used to reset the vertical clamping plate 43 in the non-clamping state, and the lower clamping plate 45 is used to support the bottom surface of the workpiece when clamping the workpiece.

[0025] The pressing assembly includes a connecting rod 46, the bottom end of the connecting rod 46 is hinged to the end of the sliding cylinder 42 away from the center of the equipment platform 1, the top of the connecting rod 46 is hinged to a connecting rod 2 47, the middle part of the connecting rod 2 47 is hinged to the top of the clamping sleeve 41, and the other end of the connecting rod 2 47 is hinged to an upper clamping plate 48.

[0026] Connecting rod 1 46 is hinged to connecting rod 2 47, and the middle part of connecting rod 2 47 is hinged to clamp the sliding sleeve 41, which is used to lift the outer side of connecting rod 2 47 when the sliding cylinder 42 slides outward, so that the inner side of connecting rod 2 47 moves downward, and the upper clamping plate 48 is used to press the upper surface of the workpiece.

[0027] The radial sliding mechanism includes a bearing seat 51, which is fixedly connected to one side of the radial sleeve 2. The bearing seat 51 is rotatably connected to a rotating shaft 52, and the top of the rotating shaft 52 is fixedly connected to an upper gear 53. The upper gear 53 is meshed with a rack 54, and the rack 54 is fixedly connected to one side of the radial sliding frame 3.

[0028] The bearing seat 51 is used to rotate and connect the rotating shaft 52, and the rotating shaft 52 is used to fix the upper gear 53 and the lower gear 55 and maintain the synchronous rotation of the upper gear 53 and the lower gear 55. The upper gear 53 is used to engage the rack 54. When the upper gear 53 rotates, it drives the rack 54 to move along the sliding direction of the radial sleeve 2.

[0029] The radial sliding mechanism further includes a lower gear 55 , which is fixedly connected to the bottom end of the rotating shaft 52 , and is meshedly connected to an inner gear ring 56 , which is rotatably connected to the upper surface of the equipment platform 1 .

[0030] The lower gear 55 is used to mesh with the inner gear ring 56 , and a plurality of lower gears 55 mesh with the same inner gear ring 56 to maintain synchronous rotation of the lower gears 55 , thereby ensuring synchronous sliding of the rack 54 .

[0031] The power mechanism includes a worm gear ring 61, which is fixedly connected to the outer side of the inner gear ring 56. The worm gear ring 61 is meshed with a worm 62. Both ends of the worm 62 are rotatably connected to a worm bearing seat 63, and the worm bearing seat 63 is fixedly connected to the upper surface of the equipment platform 1.

[0032] The worm bearing seat 63 is used to keep the worm 62 rotatable. The worm 62 drives the worm wheel ring 61 to rotate through its own rotation and maintains a self-locking function.

[0033] The power mechanism further includes a worm motor 64 , and an output shaft of the worm motor 64 is fixedly connected to one end of the worm 62 .

[0034] The worm motor 64 provides rotational power to drive the worm 62 to rotate.

[0035] Working principle:

[0036] Start the worm motor 64, which drives the worm 62 to rotate. The worm 62 drives the worm gear ring 61 to rotate and realizes the self-locking function. The worm gear ring 61 drives the inner gear ring 56 to rotate. The inner gear ring 56 drives the synchronous rotation of multiple lower gears 55. The lower gears 55 and the rotating shaft 52 keep synchronous rotation, thereby making the rack 54 and the radial sliding frame 3 produce synchronous radial movement.

[0037] The clamping sleeve 41 on the upper side of the radial sliding frame 3 moves radially accordingly. When the vertical clamping plate 43 is adjusted to the diameter of the workpiece, the workpiece is placed on the lower clamping plate 45, and the worm 62 is rotated in the opposite direction to allow the vertical clamping plate 43 to gradually clamp the workpiece. The workpiece pushes the sliding cylinder 42 in the opposite direction, and the vertical clamping plate 43 pushes the connecting rod 1 46 to move outward. The connecting rod 1 46 continues to support the outer side of the connecting rod 2 47, so that the inner side of the connecting rod 2 47 is downward, so that the upper clamping plate 48 presses the lower clamping plate 45, and then clamps the workpiece from the circumferential surface and end surface to prevent the formation of curling.

[0038] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A disc-type workpiece fixing fixture for machining, comprising an equipment platform (1), wherein a radial sliding sleeve (2) is fixedly connected to the upper surface of the equipment platform (1) in a circumferential array, and a radial sliding frame (3) is slidably connected to the top of the radial sliding sleeve (2), characterized in that: The upper surface of the radial sliding frame (3) is provided with a clamping mechanism, the clamping mechanism comprising a clamping sleeve (41), the clamping sleeve (41) being fixedly connected to the upper surface of the radial sliding frame (3), the clamping sleeve (41) being slidably connected to a sliding cylinder (42), the sliding direction of the sliding cylinder (42) being the diameter direction of the equipment platform (1), the end of the sliding cylinder (42) close to the center of the equipment platform (1) being fixedly connected to a vertical clamping plate (43), the vertical clamping plate (43) being close to the equipment platform (1) A lower clamping plate (45) is fixedly connected to one side of the center of the circle, the vertical clamping plate (43) is slidably connected to the upper surface of the radial sliding frame (3), a return spring (44) is provided on the outer side of the sliding cylinder (42), and the two ends of the return spring (44) are respectively fixedly connected to the clamping sleeve (41) and the vertical clamping plate (43), a downward pressing component is provided on the top of the sliding cylinder (42), and a radial sliding mechanism for driving the radial sleeve (2) to slide is provided on the upper surface of the equipment platform (1), and a power mechanism is provided on the outer side of the radial sliding mechanism.

2. The disc-type workpiece fixing fixture for machining according to claim 1 is characterized in that: The pressing assembly comprises a connecting rod 1 (46), the bottom end of the connecting rod 1 (46) is hinged to one end of the sliding cylinder (42) away from the center of the equipment platform (1), the top end of the connecting rod 1 (46) is hinged to a connecting rod 2 (47), the middle part of the connecting rod 2 (47) is hinged to the top end of the clamping sleeve (41), and the other end of the connecting rod 2 (47) is hinged to an upper clamping plate (48).

3. The disc-type workpiece fixing fixture for machining according to claim 1 is characterized in that: The radial sliding mechanism comprises a bearing seat (51), wherein the bearing seat (51) is fixedly connected to one side of the radial sliding sleeve (2), the bearing seat (51) is rotatably connected to a rotating shaft (52), the top end of the rotating shaft (52) is fixedly connected to an upper gear (53), the upper gear (53) is meshed with a rack (54), and the rack (54) is fixedly connected to one side of the radial sliding frame (3).

4. The disc-type workpiece fixing fixture for machining according to claim 3 is characterized in that: The radial sliding mechanism also includes a lower gear (55), which is fixedly connected to the bottom end of the rotating shaft (52), and the lower gear (55) is meshedly connected to an inner gear ring (56), and the inner gear ring (56) is rotatably connected to the upper surface of the equipment platform (1).

5. The disc-type workpiece fixing fixture for machining according to claim 4 is characterized in that: The power mechanism comprises a worm gear ring (61), wherein the worm gear ring (61) is fixedly connected to the outer side of the inner gear ring (56), the worm gear ring (61) is meshed with a worm (62), both ends of the worm (62) are rotatably connected to a worm bearing seat (63), and the worm bearing seat (63) is fixedly connected to the upper surface of the equipment platform (1).

6. The disc-type workpiece fixing fixture for machining according to claim 5 is characterized in that: The power mechanism also includes a worm motor (64), the output shaft of the worm motor (64) being fixedly connected to one end of the worm (62).

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