Positioning tool for circular mechanical part machining

Abstract

The utility model relates to the technical field of positioning tools, in particular to a positioning tool for processing circular mechanical parts, which comprises a base, a driving cavity is arranged in the base, a movable first positioning plate and a movable second positioning plate are oppositely arranged on the base, a plurality of first clamping grooves for fixing workpieces are uniformly arranged on the first positioning plate along the length direction of the first positioning plate, and a plurality of second clamping grooves for fixing workpieces are uniformly arranged on the second positioning plate along the length direction of the second positioning plate. A second clamping groove corresponding to the first clamping groove is formed in the second positioning plate, a first sliding groove and a second sliding groove which are communicated with the driving cavity are oppositely formed in the base in the width direction of the base, the first positioning plate is provided with a first sliding block sliding in the first sliding groove, and the second positioning plate is provided with a second sliding block sliding in the second sliding groove; a driving assembly used for driving the first sliding block and the second sliding block to move relatively is arranged in the driving cavity. And through the arrangement of the multiple first clamping grooves and the multiple second clamping grooves, when the first positioning plate and the second positioning plate are close to each other, the multiple workpieces can be fixed at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a positioning tooling for processing circular mechanical parts. Background Art

[0002] Mechanical parts, also known as mechanical elements, are the basic elements that make up a machine. Multiple processing procedures are required during the production of mechanical parts. When processing mechanical parts, circular mechanical parts such as circular shafts need to be fixed by positioning tooling and installed on the processing table so that the circular parts can be processed.

[0003] For example, the patent with announcement number CN220922136U discloses a positioning tool for machining mechanical parts, including a fixed base, a support column connected to the fixed base, a first connecting clamp connected to the middle of the support column, a lower clamping area provided in the middle of the first connecting clamp, a fixed plate connected to the top of the support column, a driving cylinder connected to the fixed plate, a driving shaft of the driving cylinder passes through the fixed plate and is connected to the second connecting clamp, an upper clamping area cooperating with the lower clamping area is provided on the second connecting clamp, and a locking assembly for clamping and positioning the product is connected to the left, middle and right sides of the lower clamping area. Although the positioning tool can improve the stability of the fixation, in its actual use, the positioning tool can only fix one part at a time, and after processing, the processed part must be loosened and disassembled, and then the next part must be clamped and fixed again. This method is a single clamping method with low processing efficiency, so it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning tool for processing circular mechanical parts to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning tool for processing circular mechanical parts, including a base, a driving cavity is provided in the base, a movable first positioning plate and a second positioning plate are relatively provided on the base, a plurality of first clamping grooves for fixing the workpiece are evenly provided on the first positioning plate along its length direction, a second clamping groove is provided on the second positioning plate corresponding to the first clamping groove, a first sliding groove and a second sliding groove connected to the driving cavity are relatively provided on the upper side surface of the base along its width direction, the first positioning plate is provided with a first sliding block sliding in the first sliding groove, the second positioning plate is provided with a second sliding block sliding in the second sliding groove, and a driving component for driving the first sliding block and the second sliding block to move relative to each other is provided in the driving cavity.

[0007] Preferably, the bottom ends of the first sliding block and the second sliding block are extended into the driving cavity, and the driving assembly includes a rotatable rotating shaft arranged in the driving cavity, a gear is sleeved on the rotating shaft, a first rack meshing with the gear is provided at the bottom end surface of the first sliding block, and a second rack meshing with the gear is provided at the bottom end surface of the second sliding block, and the rotation of the gear is used to drive the first sliding block and the second sliding block to move relative to each other.

[0008] Preferably, a rotatable rotating rod is further provided in the driving cavity, and the rotating rod is threadedly passed through the first rack. Rotating the rotating rod is used to drive the first rack to move.

[0009] Preferably, a first limiting block for limiting the moving distance of the first sliding block is relatively arranged in the first sliding groove, and a second limiting block for limiting the second sliding block is relatively arranged in the second sliding groove.

[0010] Preferably, one end of the rotating rod is extended from the driving cavity, and the extended end of the rotating rod is provided with a limiting groove along its axial direction. A hand wheel is sleeved on the rotating rod, and a limiting plate is provided in the hand wheel and moves in the limiting groove.

[0011] Preferably, the rotating rod is also provided with a nut for making the hand-cranked wheel close to the side wall of the base.

[0012] Preferably, elastic members are provided on the inner walls of the first clamping groove and the second clamping groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model, through the arrangement of multiple first clamping grooves and second clamping grooves, enables multiple workpieces to be fixed at the same time when the first positioning plate and the second positioning plate are close to each other. Compared with the existing ones, the positioning tooling can fix or release multiple workpieces by moving the first positioning plate and the second positioning plate, thereby improving the processing efficiency of the positioning tooling.

[0015] 2. The utility model, through the provision of the first sliding groove, the first sliding block, the second sliding groove and the second sliding block, the moving direction of the first positioning plate is restricted, that is, it can only move along the extension direction of the first sliding groove, and the moving direction of the second positioning plate is restricted, that is, it can only move along the extension direction of the second sliding groove, so that the two can approach or move away from each other, and the first clamping groove and the second clamping groove can be kept in an aligned state, which is convenient for fixing the cylindrical workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a positioning tool for processing circular mechanical parts.

[0017] Figure 2It is a cross-sectional schematic diagram of the base and the first positioning plate in the utility model.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 It is an exploded view of the base, the first positioning plate and the second positioning plate in the utility model.

[0020] Figure 5 It is an exploded view of the rotating rod, the hand wheel and the nut in the utility model.

[0021] Figure 6 It is a schematic structural diagram of the first rack, the second rack and the rotating shaft in the utility model.

[0022] The meaning of the symbols in the figure is:

[0023] 100, base; 110, first positioning plate; 111, second positioning plate; 120, workpiece; 130, rotating rod;

[0024] 200, driving chamber; 210, rotating shaft; 220, second sliding block; 221, second rack;

[0025] 300, first sliding block; 310, gear; 320, first rack;

[0026] 400, first clamping groove; 410, second clamping groove; 420, first limiting block; 421, second limiting block;

[0027] 500, limit groove; 510, hand wheel; 511, limit plate; 520, gasket; 530, nut;

[0028] 600, first sliding groove; 610, second sliding groove. DETAILED DESCRIPTION

[0029] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0030] The following is combined with Figure 1-Figure 5 This embodiment is described in further detail.

[0031] See also Figure 1-Figure 4In this embodiment, a positioning tool for processing circular mechanical parts includes a base 100, a driving cavity 200 is provided in the base 100, a movable first positioning plate 110 and a second positioning plate 111 are relatively provided on the base 100, a plurality of first clamping grooves 400 for fixing a workpiece 120 are uniformly provided on the first positioning plate 110 along its length direction, a second clamping groove 410 is provided on the second positioning plate 111 corresponding to the first clamping groove 400, a first sliding groove 600 and a second sliding groove 610 connected to the driving cavity 200 are relatively provided on the upper side surface of the base 100 along its width direction, the first positioning plate 110 is provided with a first sliding block 300 sliding in the first sliding groove 600, the second positioning plate 111 is provided with a second sliding block 220 sliding in the second sliding groove 610, and a driving component for driving the first sliding block 300 and the second sliding block 220 to move relative to each other is provided in the driving cavity 200.

[0032] In this embodiment, when the first positioning plate 110 and the second positioning plate 111 on the base 100 are close to each other, the first clamping groove 400 and the corresponding second clamping groove 410 are driven to be close to each other, so that the cylindrical workpiece 120 can be clamped and positioned to be fixed for subsequent processing. When the processing is completed, the first positioning plate 110 and the second positioning plate 111 can be moved away from each other to release the fixation of the workpiece 120 so that the workpiece 120 after processing can be removed;

[0033] Among them, by setting a plurality of first clamping grooves 400 and a second clamping groove 410, when the first positioning plate 110 and the second positioning plate 111 are close to each other, a plurality of workpieces 120 can be fixed at the same time. Compared with the existing ones, the positioning tool in this embodiment can fix or release a plurality of workpieces 120 by moving the first positioning plate 110 and the second positioning plate 111 once, thereby improving the processing efficiency of the positioning tool;

[0034] Among them, by setting the first sliding groove 600, the first sliding block 300, the second sliding groove 610 and the second sliding block 220, the moving direction of the first positioning plate 110 is limited, that is, it can only move along the extension direction of the first sliding groove 600, and the moving direction of the second positioning plate 111 is limited, that is, it can only move along the extension direction of the second sliding groove 610, so that the two can be close to or away from each other, and the first clamping groove 400 and the second clamping groove 410 can be kept in an aligned state, which is convenient for fixing the cylindrical workpiece 120;

[0035] The drive assembly is configured to control the movement of the first sliding block 300 and the second sliding block 220, that is, to achieve the relative movement of the first positioning plate 110 and the second positioning plate 111, and to fix or release the workpiece 120;

[0036] During actual use of this embodiment, elastic parts are provided on the inner walls of the first clamping groove 400 and the second clamping groove 410. The first clamping groove 400 and the second clamping groove 410 are both V-shaped. When the two are close to each other, they can form a diamond-shaped clamping groove for clamping the workpiece 120. When the first clamping groove 400 and the second clamping groove 410 are close to each other, the workpiece 120 can press against the elastic part, causing the elastic part to deform, thereby preventing the workpiece 120 from being clamped and damaged.

[0037] like Figure 2-3 As shown, in this embodiment, the bottom ends of the first sliding block 300 and the second sliding block 220 are extended into the driving cavity 200, and the driving assembly includes a rotating shaft 210 which is arranged in the driving cavity 200 and can rotate. A gear 310 is sleeved on the rotating shaft 210. A first rack 320 meshing with the gear 310 is provided at the bottom end surface of the first sliding block 300, and a second rack 221 meshing with the gear 310 is provided at the bottom end surface of the second sliding block 220. The rotation of the gear 310 is used to drive the first sliding block 300 and the second sliding block 220 to move relative to each other.

[0038] In actual use of this embodiment, a bearing for rotatably mounting the rotating shaft 210 is provided in the driving chamber 200, thereby preferably realizing the rotatability of the rotating shaft 210; since the gear 310 is fixedly mounted on the rotating shaft 210 and meshes with the first rack 320 and the second rack 221 respectively, the rotating shaft 210 rotates to drive the gear 310 to rotate, and the first rack 320 and the second rack 221 can be driven to move relative to each other;

[0039] Among them, through the arrangement of the first sliding block 300, the second sliding block 220 and the first sliding groove 600, the second sliding groove 610, when the first sliding block 300 extending into the driving cavity 200 is fixedly connected to the first rack 320, and the second sliding block 220 is fixedly connected to the second rack 221, when the gear 310 drives the first rack 320 and the second rack 221 to move relative to each other, it can drive the first positioning plate 110 and the second positioning plate 111 outside the driving cavity 200 to move relative to each other.

[0040] like Figure 1-3 As shown, in this embodiment, a rotatable rotating rod 130 is further provided in the driving cavity 200 . The rotating rod 130 is threadedly disposed through the first rack 320 . Rotating the rotating rod 130 is used to drive the first rack 320 to move.

[0041] In this embodiment, a bearing for rotatably mounting the rotating rod 130 is provided on the side wall of the driving cavity 200, thereby realizing a rotatable arrangement of the rotating rod 130 in the driving cavity 200;

[0042] Among them, one end of the rotating rod 130 is extended out of the driving cavity 200. Since the rotating rod 130 is threaded through the first rack 320, when the rotating rod 130 is rotated, the first rack 320 can be moved. Through the transmission of the gear 310, the second rack 221 can move synchronously to realize the synchronous movement of the first positioning plate 110 and the second positioning plate 111. Through the above structure, the synchronous movement of the first positioning plate 110 and the second positioning plate 111 can be realized by simply rotating the rotating rod 130, which is more convenient in use.

[0043] like Figure 2-6 As shown, in this embodiment, a first limit block 420 for limiting the moving distance of the first sliding block 300 is relatively disposed in the first sliding groove 600 , and a second limit block 421 for limiting the second sliding block 220 is relatively disposed in the second sliding groove 610 .

[0044] In this embodiment, through the setting of the first limit block 420, when the first sliding block 300 contacts the first limit block 420, it stops moving, and the moving distance of the first sliding block 300 can be limited to prevent the first rack 320 from being disengaged from the gear 310 during movement, thereby affecting the normal movement of the first positioning plate 110. The second limit block 421 has the same function as the first limit block 420, namely, preventing the second rack 221 from being disengaged from the gear 310.

[0045] like Figure 1-5 As shown, in this embodiment, one end of the rotating rod 130 is extended from the driving cavity 200, and the extended end of the rotating rod 130 is provided with a limiting groove 500 along its axial direction. A hand-cranked wheel 510 is sleeved on the rotating rod 130, and a limiting plate 511 is provided in the hand-cranked wheel 510 and moves in the limiting groove 500.

[0046] In this embodiment, the limit plate 511 can move in the limit groove 500 along the axial direction of the rotating rod 130. When the hand wheel 510 rotates along the circumferential direction of the rotating rod 130, the limit plate 511 is restricted by the limit groove 500, and the hand wheel 510 can drive the rotating rod 130 to rotate accordingly.

[0047] like Figure 1-5 As shown, in this embodiment, a nut 530 is further provided on the rotating rod 130 for making the hand-cranked wheel 510 close to the side wall of the base 100 .

[0048] In this embodiment, when the rotating rod 130 needs to be fixed, the nut 530 can be tightened to make the hand wheel 510 close to the side wall of the base 100. At this time, the hand wheel 510 cannot rotate. Due to the limitation of the limiting groove 500 on the limiting plate 511, the rotating rod 130 is fixed to prevent the rotating rod 130 from rotating by mistake, causing the first positioning plate 110 and the second positioning plate 111 to move away from each other, thereby releasing the fixation of the workpiece 120.

[0049] In order to increase the friction between the nut 530 and the hand-cranked wheel 510, a gasket 520 is provided between the two. The gasket 520 can increase the contact area between the nut 530 and the hand-cranked wheel 510, thereby increasing the friction between the two.

[0050] Working principle: When the circular workpiece 120 needs to be fixed, first, loosen the nut 530, turn the hand wheel 510 to rotate the gear 310, drive the first positioning plate 110 and the second positioning plate 111 to move away from each other, release the fixation of the processed workpiece 120, then remove the processed workpiece 120, place the workpiece 120 to be processed on the upper end surface of the base 100, turn the hand wheel 510 to rotate the rotating rod 130, so that the first positioning plate 110 and the second positioning plate 111 are close to each other, and finally loosen the nut 530 to prevent the rotating rod 130 from rotating accidentally.

Claims

1. A positioning tool for processing circular mechanical parts, characterized in that: The invention comprises a base (100), wherein a driving cavity (200) is arranged in the base (100), a first positioning plate (110) and a second positioning plate (111) which are movable relative to each other are arranged on the base (100), a plurality of first clamping grooves (400) for fixing a workpiece (120) are evenly arranged on the first positioning plate (110) along its length direction, a second clamping groove (410) is arranged on the second positioning plate (111) corresponding to the first clamping grooves (400), and an upper side surface of the base (100) is provided with a plurality of first clamping grooves (410) for fixing a workpiece (120) along its width direction. A first sliding groove (600) and a second sliding groove (610) connected to the driving cavity (200) are arranged in a relative manner in the degree direction; the first positioning plate (110) is provided with a first sliding block (300) sliding in the first sliding groove (600); the second positioning plate (111) is provided with a second sliding block (220) sliding in the second sliding groove (610); and a driving component for driving the first sliding block (300) and the second sliding block (220) to move relative to each other is arranged in the driving cavity (200).

2. The positioning tool for processing circular mechanical parts according to claim 1, characterized in that: The bottom ends of the first sliding block (300) and the second sliding block (220) are extended into the driving cavity (200), and the driving assembly comprises a rotating shaft (210) which is arranged in the driving cavity (200) and can rotate. A gear (310) is sleeved on the rotating shaft (210). A first rack (320) meshing with the gear (310) is provided at the bottom end surface of the first sliding block (300), and a second rack (221) meshing with the gear (310) is provided at the bottom end surface of the second sliding block (220). The gear (310) rotates to drive the first sliding block (300) and the second sliding block (220) to move relative to each other.

3. The positioning tool for processing circular mechanical parts according to claim 2, characterized in that: A rotatable rotating rod (130) is also provided in the driving cavity (200). The rotating rod (130) is threadedly passed through the first rack (320). Rotating the rotating rod (130) is used to drive the first rack (320) to move.

4. The positioning tool for processing circular mechanical parts according to claim 2, characterized in that: A first limiting block (420) for limiting the moving distance of the first sliding block (300) is relatively arranged in the first sliding groove (600), and a second limiting block (421) for limiting the second sliding block (220) is relatively arranged in the second sliding groove (610).

5. The positioning tool for processing circular mechanical parts according to claim 3, characterized in that: One end of the rotating rod (130) is extended from the driving cavity (200), and a limiting groove (500) is relatively provided at the extended end of the rotating rod (130) along its axial direction. A hand-cranked wheel (510) is sleeved on the rotating rod (130), and a limiting plate (511) is provided in the hand-cranked wheel (510) and is located and moved in the limiting groove (500).

6. A positioning tool for processing circular mechanical parts according to claim 5, characterized in that: The rotating rod (130) is also provided with a nut (530) for making the hand-cranked wheel (510) close to the side wall of the base (100).

7. The positioning tool for processing circular mechanical parts according to claim 1, characterized in that: Elastic parts are provided on the inner walls of the first clamping groove (400) and the second clamping groove (410).

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