Shaft machining positioning tool

Abstract

The utility model discloses a shaft machining positioning tool, and relates to the technical field of positioning tools, the shaft machining positioning tool comprises a front positioning frame and a rear positioning frame, the front positioning frame and the rear positioning frame both comprise frame bodies, mounting cavities are formed in the frame bodies, and driving blocks which are driven by a first driving mechanism to slide left and right in the mounting cavities are mounted on the frame bodies; first sliding blocks capable of sliding up and down are symmetrically mounted at the upper end and the lower end of the driving block; a first positioning block and a second positioning block which can slide up and down are further installed on the frame body, V-shaped grooves are formed in the opposite sides of the first positioning block and the second positioning block, and second sliding blocks which can slide left and right are installed on the first positioning block and the second positioning block; two rotating blocks are further hinged to the frame body, one ends of the rotating blocks are hinged to the first sliding blocks, and the other ends of the rotating blocks are hinged to the second sliding blocks. The height of the axis of the shaft clamped by the first positioning block and the second positioning block is fixed and is not affected by the diameter of the shaft, and the machining precision of the shaft is high.

Description

Technical Field

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

[0002] The shaft is an important mechanical part, and it often needs to be processed in different ways. This requires the use of tooling to fix the shaft and then process it. In the processing of shaft parts, the positions of the holes and grooves on the shaft are generally designed based on the center line of the shaft. However, in the prior art, the shaft is fixed with a fixed lower positioning block and a movable upper positioning block, which results in inconsistent axis heights of shafts of different diameters after being fixed. When processing the shaft, the upper surface height of the shaft is used as the reference, and the processing accuracy is low. Utility Model Content

[0003] The utility model aims to provide a shaft processing positioning tool, aiming to solve the technical problems in the prior art that the axis heights of shafts of different diameters after being fixed are inconsistent, and when the shafts are processed, the upper surface height of the shafts is used as a reference, resulting in low processing accuracy.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A shaft processing positioning tool comprises a front positioning frame and a rear positioning frame, both of which comprise a frame body, an installation cavity being provided in the frame body, a driving block driven by a first driving mechanism to slide left and right in the installation cavity being installed on the frame body, a first sliding block capable of sliding up and down being symmetrically provided on the upper and lower ends of the driving block; a first positioning block and a second positioning block capable of sliding up and down are also installed on the frame body, V-shaped grooves are provided on opposite sides of the first positioning block and the second positioning block, the first positioning block and the second positioning block are symmetrically arranged, a second sliding block capable of sliding left and right being installed on the first positioning block and the second positioning block; two rotating blocks are also hinged on the frame body, one end of the rotating block is hinged on the first sliding block, and the other end of the rotating block is hinged on the second sliding block.

[0006] With the above structure, the first driving mechanism drives the first positioning block and the second positioning block to engage and disengage, thereby achieving the clamping and loosening of the shaft. The first positioning block and the second positioning block are symmetrically arranged, and the height of the symmetry plane is constant. The first positioning block and the second positioning block move synchronously in opposite directions with the movement of the driving block, so that the axis height of the shaft clamped by the first positioning block and the second positioning block is fixed, which is not affected by the diameter of the shaft, and the shaft processing accuracy is high.

[0007] Preferably, it further comprises a base plate, the front positioning frame is fixedly mounted on the base plate, the rear positioning frame is slidably mounted on the base plate, and a second driving mechanism for driving the rear positioning frame to slide forward and backward is mounted on the base plate. With the above structure, the position of the rear positioning frame can be adjusted according to the length of the shaft, thereby adjusting the distance between the front positioning frame and the rear positioning frame, thereby improving the versatility of the positioning tooling.

[0008] Preferably, the right end of the driving block is fixedly connected with a push rod that penetrates the frame body, a fixing seat is installed on the base plate, and a slide plate that is driven to slide left and right by the first driving mechanism is installed on the left side of the fixing seat, the push rod slides left and right with the slide plate, and a first slide groove is provided on the rear side of the slide plate, and the push rod on the rear positioning frame can slide back and forth in the first slide groove. The setting of the first slide groove allows the push rod to move in the first slide groove with the sliding of the subsequent positioning frame, and the first driving mechanism is actuated to drive the slide plate to move left and right, thereby driving the two push rods on the slide plate to move left and right, thereby synchronously driving the first positioning block and the second positioning block on the front positioning frame and the rear positioning frame to engage and open.

[0009] Preferably, the push rod passes through the slide plate, and the push rod is fixed with a first boss and a second boss respectively limited on the left and right plate surfaces of the slide plate. Through the arrangement of the first boss and the second boss, the push rod can move left and right with the slide plate.

[0010] Preferably, guide posts are fixedly connected to both the front and rear sides of the slide plate, and guide holes matching the guide posts are provided on the fixing seat. The guide posts and the guide holes cooperate to guide the left and right sliding of the slide plate.

[0011] Preferably, a limiting boss is provided at the right end of the guide post. The limiting boss is provided to limit the limit position of the guide post moving to the left, thereby preventing the guide post from falling out of the guide hole.

[0012] Preferably, a slide is installed on the base plate, and a second slide groove matching the slide is provided on the frame body of the rear positioning frame. The slide slides in the second slide groove to realize the sliding guidance of the rear positioning frame on the base plate.

[0013] Preferably, the two frames have end plates fixedly connected to their diverging ends. With the above structure, after the rear positioning frame is slid to a suitable position, the two ends of the shaft are respectively placed on the two second positioning blocks, and the front end of the shaft is abutted against the end plate of the front positioning frame. The second driving mechanism drives the rear positioning frame to slide forward, so that the end plate of the rear positioning frame abuts against the rear end of the shaft, and then the first driving mechanism is actuated to drive the first positioning block and the second positioning block to buckle and clamp the shaft. The axial fixation of the shaft is achieved through the end plates to prevent the axial movement of the shaft during processing.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] The utility model drives the first positioning block and the second positioning block to engage and disengage through the action of the first driving mechanism, thereby realizing the clamping and loosening of the shaft. The first positioning block and the second positioning block are symmetrically arranged, and the height of the symmetry plane is constant. The first positioning block and the second positioning block move synchronously in opposite directions with the movement of the driving block, so that the axis height of the shaft clamped by the first positioning block and the second positioning block is fixed, which is not affected by the diameter of the shaft, and the machining accuracy of the shaft is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a first embodiment of a shaft processing and positioning tool of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view of the structure of the first embodiment of a shaft processing and positioning tool of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure in which the first positioning block and the second positioning block are opened;

[0019] Figure 4 is a schematic diagram of the structure in which the first positioning block and the second positioning block are buckled together;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of a second embodiment of a shaft processing positioning tool of the utility model.

[0021] In the figure, a base plate 1, a slide 10, a front positioning frame 2, a rear positioning frame 3, a second slide groove 30, a frame body 4, a mounting cavity 40, a drive block 41, a moving block 42, a moving block slide groove 43, a first slider 44, a first positioning block 45, a V-shaped groove 450, a second positioning block 46, a second slider 47, a rotating block 48, a push rod 49, a second boss 490, a first boss 491, a fixed seat 5, a guide hole 50, a slide plate 6, a first slide groove 60, a guide column 61, a limiting boss 62, a first cylinder 7, an end plate 8, and a second cylinder 9. DETAILED DESCRIPTION

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

[0023] The orientations involved in this specification are based on the orientations of the shaft processing positioning tooling of the utility model during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.

[0024] Embodiment 1:

[0025] like Figures 1 to 4As shown, a shaft processing positioning tool includes a front positioning frame 2 and a rear positioning frame 3, and the front positioning frame 2 and the rear positioning frame 3 both include a frame body 4, a mounting cavity 40 is opened in the frame body 4, a driving block 41 driven by a first driving mechanism to slide left and right in the mounting cavity 40 is installed on the frame body 4, and a first sliding block 44 that can slide up and down is symmetrically installed on the upper and lower ends of the driving block 41; a first positioning block 45 and a second positioning block 46 that can slide up and down are also installed on the frame body 4, and V-shaped grooves 450 are opened on opposite sides of the first positioning block 45 and the second positioning block 46, the first positioning block 45 and the second positioning block 46 are symmetrically arranged, and a second sliding block 47 that can slide left and right is installed on the first positioning block 45 and the second positioning block 46; two rotating blocks 48 are also hinged on the frame body 4, one end of the rotating block 48 is hinged on the first sliding block 44, and the other end of the rotating block 48 is hinged on the second sliding block 47.

[0026] When in use, after placing the shaft to be processed on the second positioning block 46 below, the first driving mechanism drives the driving block 41 to slide to the right, driving the left ends of the two rotating blocks 48 to swing towards each other and the right ends to swing in opposite directions, thereby driving the first positioning block 45 to slide downward and the second positioning block 46 to slide upward. At the same time, the two first sliders 44 slide in the direction away from the driving block 41, and the two second positioning blocks 46 slide to the left to adapt to the swing of the rotating block 48. The utility model drives the first positioning block 45 and the second positioning block 46 to engage and disengage through the action of the first driving mechanism, thereby achieving the clamping and loosening of the shaft. The first positioning block 45 and the second positioning block 46 are symmetrically arranged, and the height of the symmetry plane is unchanged. The first positioning block 45 and the second positioning block 46 move in opposite directions synchronously with the movement of the driving block 41, so that the axis height of the shaft clamped by the first positioning block 45 and the second positioning block 46 is fixed, which is not affected by the diameter of the shaft, and the machining accuracy of the shaft is high.

[0027] Among them, the rotating block 48 is hinged to the frame 4, the first slider 44 and the second slider 47 through a hinge shaft. The middle part of the rotating block 48 is hinged to the frame 4, the right end of the rotating block 48 is hinged to the first slider 44, and the left end of the rotating block 48 is hinged to the second slider 47. The hinged structure is a conventional structure and will not be described in detail here. The right ends of the first positioning block 45 and the second positioning block 46 are both equipped with moving blocks 42, and the right ends of the moving blocks 42 are provided with second slider grooves, and the two second sliders 47 are respectively slidably installed in the second slider grooves. A moving block slide groove 43 is provided on the frame 4, and the moving block 42 slides in the moving block slide groove 43. The upper and lower ends of the driving block 41 are symmetrically provided with first slider grooves, and the two first sliders 44 are respectively slidably installed in the two first slider grooves.

[0028] As a preferred example of this embodiment, the shaft processing positioning tool also includes a base plate 1, a front positioning frame 2 is fixedly mounted on the base plate 1, a rear positioning frame 3 is slidably mounted on the base plate 1, and a second driving mechanism for driving the rear positioning frame 3 to slide forward and backward is mounted on the base plate 1. With the above structure, the position of the rear positioning frame 3 can be adjusted according to the length of the shaft, thereby adjusting the distance between the front positioning frame 2 and the rear positioning frame 3, thereby improving the versatility of the positioning tool.

[0029] As a preferred example of this embodiment, the right end of the driving block 41 is fixedly connected with a push rod 49 that penetrates the frame body 4, a fixing seat 5 is installed on the base plate 1, and a slide plate 6 driven by the first driving mechanism to slide left and right is installed on the left side of the fixing seat 5. The push rod 49 slides left and right with the slide plate 6, and a first slide groove 60 is provided on the rear side of the slide plate 6. The push rod 49 on the rear positioning frame 3 can slide forward and backward in the first slide groove 60. The setting of the first slide groove 60 allows the push rod 49 to move in the first slide groove 60 with the sliding of the positioning frame 3, and the first driving mechanism is operated to drive the slide plate 6 to move left and right, thereby driving the two push rods 49 on the slide plate 6 to move left and right, thereby synchronously driving the first positioning block 45 and the second positioning block 46 on the front positioning frame 2 and the rear positioning frame 3 to engage and open.

[0030] As a preferred example of this embodiment, the push rod 49 passes through the slide plate 6, and the push rod 49 is fixed with a first boss 491 and a second boss 490 respectively limited on the left and right plate surfaces of the slide plate 6. Through the arrangement of the first boss 491 and the second boss 490, the push rod 49 can move left and right with the slide plate 6.

[0031] Among them, the first driving mechanism is a first cylinder 7, the fixed end of the first cylinder 7 is installed on the fixed seat 5, and the movable end of the first cylinder 7 is installed on the slide 6. A circular through hole is opened on the front side of the slide 6, and the right end of the push rod 49 of the front positioning frame 2 is set in the circular through hole. The push rod 49 on the front positioning frame 2 is restricted by the first boss 491 and the second boss 490 to move left and right with the slide 6. The push rod 49 on the rear positioning frame 3 can move forward and backward along the first slide groove 60, but is restricted by the first boss 491 and the second boss 490 to move left and right with the slide 6. The second driving mechanism is a second cylinder 9, the fixed end of the second cylinder 9 is installed on the base plate 1, and the movable end of the second cylinder 9 is installed on the frame 4 of the rear positioning frame 3.

[0032] As a preferred example of this embodiment, guide posts 61 are fixedly connected to both the front and rear sides of the slide plate 6, and a guide hole 50 adapted to the guide post 61 is provided on the fixing seat 5. The guide post 61 cooperates with the guide hole 50 to guide the left and right sliding of the slide plate 6.

[0033] As a preferred example of this embodiment, a limiting boss 62 is provided at the right end of the guide post 61. The limiting boss 62 is provided to limit the limit position of the guide post 61 moving to the left, so as to prevent the guide post 61 from falling out of the guide hole 50.

[0034] As a preferred example of this embodiment, a slide 10 is installed on the base plate 1, and a second slide groove 30 adapted to the slide 10 is provided on the frame body 4 of the rear positioning frame 3. The slide 10 slides in the second slide groove 30 to achieve sliding guidance of the rear positioning frame 3 on the base plate 1. Preferably, the slide 10 is set as an inverted T-shaped slide 10, and the second slide groove 30 is set as an inverted T-shaped slide groove.

[0035] Embodiment 2:

[0036] like Figure 5 As shown, as a further improvement of the first embodiment, the two frames 4 are both fixedly connected to the ends away from each other with end plates 8 .

[0037] When in use, after sliding the rear positioning frame 3 to a suitable position, the two ends of the shaft are placed on the two second positioning blocks 46 respectively, and the front end of the shaft is against the end plate 8 of the front positioning frame 2. The second driving mechanism drives the rear positioning frame 3 to slide forward, so that the end plate 8 of the rear positioning frame 3 is against the rear end of the shaft, and then the first driving mechanism is actuated to drive the first positioning block 45 and the second positioning block 46 to buckle and clamp the shaft. The axial fixation of the shaft is achieved through the end plate 8 to prevent the axial movement of the shaft during processing.

[0038] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A shaft processing and positioning tool, characterized in that: It includes a front positioning frame and a rear positioning frame, each of which includes a frame body, an installation cavity is provided in the frame body, a driving block driven by a first driving mechanism to slide left and right in the installation cavity is installed on the frame body, and two first sliding blocks that can slide up and down are symmetrically installed on the upper and lower ends of the driving block; a first positioning block and a second positioning block that can slide up and down are also installed on the frame body, V-shaped grooves are provided on opposite sides of the first positioning block and the second positioning block, the first positioning block and the second positioning block are symmetrically arranged, and the first positioning block and the second positioning block are both installed with a second sliding block that can slide left and right; two rotating blocks are also hinged on the frame body, one end of the rotating block is hinged on the first sliding block, and the other end of the rotating block is hinged on the second sliding block.

2. A shaft processing and positioning tool as claimed in claim 1, characterized in that: It also includes a base plate, on which the front positioning frame is fixedly mounted, and on which the rear positioning frame is slidably mounted. A second driving mechanism for driving the rear positioning frame to slide forward and backward is mounted on the base plate.

3. A shaft processing and positioning tool as claimed in claim 2, characterized in that: The right end of the driving block is fixedly connected with a push rod that passes through the frame body, and a fixing seat is installed on the base plate. A slide plate that is driven to slide left and right by a first driving mechanism is installed on the left side of the fixing seat. The push rod slides left and right with the slide plate, and a first sliding groove is opened on the rear side of the slide plate. The push rod on the rear positioning frame can slide back and forth in the first sliding groove.

4. A shaft processing and positioning tool as claimed in claim 3, characterized in that: The push rod passes through the slide plate, and a first boss and a second boss which are respectively limited on the left and right plate surfaces of the slide plate are fixedly connected to the push rod.

5. A shaft processing and positioning tool as claimed in claim 4, characterized in that: The front and rear sides of the slide plate are both fixedly connected with guide pillars, and the fixing seat is provided with guide holes matched with the guide pillars.

6. A shaft processing and positioning tool as claimed in claim 5, characterized in that: The right end of the guide column is provided with a limiting boss.

7. A shaft processing and positioning tool as claimed in claim 2, characterized in that: A slide table is installed on the base plate, and a second slide groove matched with the slide table is opened on the frame body of the rear positioning frame.

8. The shaft processing and positioning tool as claimed in claim 2, characterized in that: The ends away from the two frames are both fixedly connected with end plates.

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